diff options
| author | Natanael Copa <ncopa@alpinelinux.org> | 2009-06-29 14:19:53 +0000 |
|---|---|---|
| committer | Natanael Copa <ncopa@alpinelinux.org> | 2009-06-29 14:19:53 +0000 |
| commit | e760cb69238143ea60cc05a0ae03bea6e4508d22 (patch) | |
| tree | 3938c2f452f0b0d97dca1771d16c2689dd369485 | |
| parent | a534a1e4338bd3a1117e2c4ae91f47c654ace940 (diff) | |
| download | aports-e760cb69238143ea60cc05a0ae03bea6e4508d22.tar.bz2 aports-e760cb69238143ea60cc05a0ae03bea6e4508d22.tar.xz | |
core/linux-grsec-sources: removed
we dont use linux-*-sources packages anymore
6 files changed, 0 insertions, 37697 deletions
diff --git a/core/linux-grsec-sources/.gitignore b/core/linux-grsec-sources/.gitignore deleted file mode 100644 index 201f43de6..000000000 --- a/core/linux-grsec-sources/.gitignore +++ /dev/null @@ -1 +0,0 @@ -grsecurity*.patch diff --git a/core/linux-grsec-sources/0001-linux-2.6.28.5-ipgre-strict-binding.patch b/core/linux-grsec-sources/0001-linux-2.6.28.5-ipgre-strict-binding.patch deleted file mode 100644 index fd0cfeb2a..000000000 --- a/core/linux-grsec-sources/0001-linux-2.6.28.5-ipgre-strict-binding.patch +++ /dev/null @@ -1,207 +0,0 @@ -From: Timo Teras <timo.teras@iki.fi> -Date: Tue, 20 Jan 2009 01:22:12 +0000 (-0800) -Subject: gre: strict physical device binding -X-Git-Url: http://git.kernel.org/?p=linux%2Fkernel%2Fgit%2Fdavem%2Fnet-next-2.6.git;a=commitdiff_plain;h=749c10f931923451a4c59b4435d182aa9ae27a4f;hp=57a574993d94671b495cdbe8aeb78b745abfe14f - -gre: strict physical device binding - -Check the device on receive path and allow otherwise identical devices -as long as the physical device differs. - -This is useful for NBMA tunnels, where you want to use different gre IP -for each public IP available via different physical devices. - -Signed-off-by: Timo Teras <timo.teras@iki.fi> -Signed-off-by: David S. Miller <davem@davemloft.net> ---- - -diff --git a/net/ipv4/ip_gre.c b/net/ipv4/ip_gre.c -index 0101521..4a43739 100644 ---- a/net/ipv4/ip_gre.c -+++ b/net/ipv4/ip_gre.c -@@ -164,67 +164,113 @@ static DEFINE_RWLOCK(ipgre_lock); - - /* Given src, dst and key, find appropriate for input tunnel. */ - --static struct ip_tunnel * ipgre_tunnel_lookup(struct net *net, -+static struct ip_tunnel * ipgre_tunnel_lookup(struct net_device *dev, - __be32 remote, __be32 local, - __be32 key, __be16 gre_proto) - { -+ struct net *net = dev_net(dev); -+ int link = dev->ifindex; - unsigned h0 = HASH(remote); - unsigned h1 = HASH(key); -- struct ip_tunnel *t; -- struct ip_tunnel *t2 = NULL; -+ struct ip_tunnel *t, *sel[4] = { NULL, NULL, NULL, NULL }; - struct ipgre_net *ign = net_generic(net, ipgre_net_id); - int dev_type = (gre_proto == htons(ETH_P_TEB)) ? - ARPHRD_ETHER : ARPHRD_IPGRE; -+ int idx; - - for (t = ign->tunnels_r_l[h0^h1]; t; t = t->next) { -- if (local == t->parms.iph.saddr && remote == t->parms.iph.daddr) { -- if (t->parms.i_key == key && t->dev->flags & IFF_UP) { -- if (t->dev->type == dev_type) -- return t; -- if (t->dev->type == ARPHRD_IPGRE && !t2) -- t2 = t; -- } -- } -+ if (local != t->parms.iph.saddr || -+ remote != t->parms.iph.daddr || -+ key != t->parms.i_key || -+ !(t->dev->flags & IFF_UP)) -+ continue; -+ -+ if (t->dev->type != ARPHRD_IPGRE && -+ t->dev->type != dev_type) -+ continue; -+ -+ idx = 0; -+ if (t->parms.link != link) -+ idx |= 1; -+ if (t->dev->type != dev_type) -+ idx |= 2; -+ if (idx == 0) -+ return t; -+ if (sel[idx] == NULL) -+ sel[idx] = t; - } - - for (t = ign->tunnels_r[h0^h1]; t; t = t->next) { -- if (remote == t->parms.iph.daddr) { -- if (t->parms.i_key == key && t->dev->flags & IFF_UP) { -- if (t->dev->type == dev_type) -- return t; -- if (t->dev->type == ARPHRD_IPGRE && !t2) -- t2 = t; -- } -- } -+ if (remote != t->parms.iph.daddr || -+ key != t->parms.i_key || -+ !(t->dev->flags & IFF_UP)) -+ continue; -+ -+ if (t->dev->type != ARPHRD_IPGRE && -+ t->dev->type != dev_type) -+ continue; -+ -+ idx = 0; -+ if (t->parms.link != link) -+ idx |= 1; -+ if (t->dev->type != dev_type) -+ idx |= 2; -+ if (idx == 0) -+ return t; -+ if (sel[idx] == NULL) -+ sel[idx] = t; - } - - for (t = ign->tunnels_l[h1]; t; t = t->next) { -- if (local == t->parms.iph.saddr || -- (local == t->parms.iph.daddr && -- ipv4_is_multicast(local))) { -- if (t->parms.i_key == key && t->dev->flags & IFF_UP) { -- if (t->dev->type == dev_type) -- return t; -- if (t->dev->type == ARPHRD_IPGRE && !t2) -- t2 = t; -- } -- } -+ if ((local != t->parms.iph.saddr && -+ (local != t->parms.iph.daddr || -+ !ipv4_is_multicast(local))) || -+ key != t->parms.i_key || -+ !(t->dev->flags & IFF_UP)) -+ continue; -+ -+ if (t->dev->type != ARPHRD_IPGRE && -+ t->dev->type != dev_type) -+ continue; -+ -+ idx = 0; -+ if (t->parms.link != link) -+ idx |= 1; -+ if (t->dev->type != dev_type) -+ idx |= 2; -+ if (idx == 0) -+ return t; -+ if (sel[idx] == NULL) -+ sel[idx] = t; - } - - for (t = ign->tunnels_wc[h1]; t; t = t->next) { -- if (t->parms.i_key == key && t->dev->flags & IFF_UP) { -- if (t->dev->type == dev_type) -- return t; -- if (t->dev->type == ARPHRD_IPGRE && !t2) -- t2 = t; -- } -+ if (t->parms.i_key != key || -+ !(t->dev->flags & IFF_UP)) -+ continue; -+ -+ if (t->dev->type != ARPHRD_IPGRE && -+ t->dev->type != dev_type) -+ continue; -+ -+ idx = 0; -+ if (t->parms.link != link) -+ idx |= 1; -+ if (t->dev->type != dev_type) -+ idx |= 2; -+ if (idx == 0) -+ return t; -+ if (sel[idx] == NULL) -+ sel[idx] = t; - } - -- if (t2) -- return t2; -+ for (idx = 1; idx < ARRAY_SIZE(sel); idx++) -+ if (sel[idx] != NULL) -+ return sel[idx]; - -- if (ign->fb_tunnel_dev->flags&IFF_UP) -+ if (ign->fb_tunnel_dev->flags & IFF_UP) - return netdev_priv(ign->fb_tunnel_dev); -+ - return NULL; - } - -@@ -284,6 +330,7 @@ static struct ip_tunnel *ipgre_tunnel_find(struct net *net, - __be32 remote = parms->iph.daddr; - __be32 local = parms->iph.saddr; - __be32 key = parms->i_key; -+ int link = parms->link; - struct ip_tunnel *t, **tp; - struct ipgre_net *ign = net_generic(net, ipgre_net_id); - -@@ -291,6 +338,7 @@ static struct ip_tunnel *ipgre_tunnel_find(struct net *net, - if (local == t->parms.iph.saddr && - remote == t->parms.iph.daddr && - key == t->parms.i_key && -+ link == t->parms.link && - type == t->dev->type) - break; - -@@ -421,7 +469,7 @@ static void ipgre_err(struct sk_buff *skb, u32 info) - } - - read_lock(&ipgre_lock); -- t = ipgre_tunnel_lookup(dev_net(skb->dev), iph->daddr, iph->saddr, -+ t = ipgre_tunnel_lookup(skb->dev, iph->daddr, iph->saddr, - flags & GRE_KEY ? - *(((__be32 *)p) + (grehlen / 4) - 1) : 0, - p[1]); -@@ -518,7 +566,7 @@ static int ipgre_rcv(struct sk_buff *skb) - gre_proto = *(__be16 *)(h + 2); - - read_lock(&ipgre_lock); -- if ((tunnel = ipgre_tunnel_lookup(dev_net(skb->dev), -+ if ((tunnel = ipgre_tunnel_lookup(skb->dev, - iph->saddr, iph->daddr, key, - gre_proto))) { - struct net_device_stats *stats = &tunnel->dev->stats; diff --git a/core/linux-grsec-sources/0002-linux-2.6.28.5-ipgre-optimize-hash-lookup.patch b/core/linux-grsec-sources/0002-linux-2.6.28.5-ipgre-optimize-hash-lookup.patch deleted file mode 100644 index fbfef33b9..000000000 --- a/core/linux-grsec-sources/0002-linux-2.6.28.5-ipgre-optimize-hash-lookup.patch +++ /dev/null @@ -1,140 +0,0 @@ -From: Timo Teras <timo.teras@iki.fi> -Date: Tue, 27 Jan 2009 04:56:10 +0000 (-0800) -Subject: gre: optimize hash lookup -X-Git-Url: http://git.kernel.org/?p=linux%2Fkernel%2Fgit%2Fdavem%2Fnet-next-2.6.git;a=commitdiff_plain;h=afcf12422ec8236dc8b9238fef7a475876eea8da;hp=3eacdf58c2c0b9507afedfc19108e98b992c31e4 - -gre: optimize hash lookup - -Instead of keeping candidate tunnel device from all categories, -keep only one candidate with best score. This optimizes stack -usage and speeds up exit code. - -Signed-off-by: Timo Teras <timo.teras@iki.fi> -Signed-off-by: David S. Miller <davem@davemloft.net> ---- - -diff --git a/net/ipv4/ip_gre.c b/net/ipv4/ip_gre.c -index 4a43739..07a188a 100644 ---- a/net/ipv4/ip_gre.c -+++ b/net/ipv4/ip_gre.c -@@ -172,11 +172,11 @@ static struct ip_tunnel * ipgre_tunnel_lookup(struct net_device *dev, - int link = dev->ifindex; - unsigned h0 = HASH(remote); - unsigned h1 = HASH(key); -- struct ip_tunnel *t, *sel[4] = { NULL, NULL, NULL, NULL }; -+ struct ip_tunnel *t, *cand = NULL; - struct ipgre_net *ign = net_generic(net, ipgre_net_id); - int dev_type = (gre_proto == htons(ETH_P_TEB)) ? - ARPHRD_ETHER : ARPHRD_IPGRE; -- int idx; -+ int score, cand_score = 4; - - for (t = ign->tunnels_r_l[h0^h1]; t; t = t->next) { - if (local != t->parms.iph.saddr || -@@ -189,15 +189,18 @@ static struct ip_tunnel * ipgre_tunnel_lookup(struct net_device *dev, - t->dev->type != dev_type) - continue; - -- idx = 0; -+ score = 0; - if (t->parms.link != link) -- idx |= 1; -+ score |= 1; - if (t->dev->type != dev_type) -- idx |= 2; -- if (idx == 0) -+ score |= 2; -+ if (score == 0) - return t; -- if (sel[idx] == NULL) -- sel[idx] = t; -+ -+ if (score < cand_score) { -+ cand = t; -+ cand_score = score; -+ } - } - - for (t = ign->tunnels_r[h0^h1]; t; t = t->next) { -@@ -210,15 +213,18 @@ static struct ip_tunnel * ipgre_tunnel_lookup(struct net_device *dev, - t->dev->type != dev_type) - continue; - -- idx = 0; -+ score = 0; - if (t->parms.link != link) -- idx |= 1; -+ score |= 1; - if (t->dev->type != dev_type) -- idx |= 2; -- if (idx == 0) -+ score |= 2; -+ if (score == 0) - return t; -- if (sel[idx] == NULL) -- sel[idx] = t; -+ -+ if (score < cand_score) { -+ cand = t; -+ cand_score = score; -+ } - } - - for (t = ign->tunnels_l[h1]; t; t = t->next) { -@@ -233,15 +239,18 @@ static struct ip_tunnel * ipgre_tunnel_lookup(struct net_device *dev, - t->dev->type != dev_type) - continue; - -- idx = 0; -+ score = 0; - if (t->parms.link != link) -- idx |= 1; -+ score |= 1; - if (t->dev->type != dev_type) -- idx |= 2; -- if (idx == 0) -+ score |= 2; -+ if (score == 0) - return t; -- if (sel[idx] == NULL) -- sel[idx] = t; -+ -+ if (score < cand_score) { -+ cand = t; -+ cand_score = score; -+ } - } - - for (t = ign->tunnels_wc[h1]; t; t = t->next) { -@@ -253,20 +262,22 @@ static struct ip_tunnel * ipgre_tunnel_lookup(struct net_device *dev, - t->dev->type != dev_type) - continue; - -- idx = 0; -+ score = 0; - if (t->parms.link != link) -- idx |= 1; -+ score |= 1; - if (t->dev->type != dev_type) -- idx |= 2; -- if (idx == 0) -+ score |= 2; -+ if (score == 0) - return t; -- if (sel[idx] == NULL) -- sel[idx] = t; -+ -+ if (score < cand_score) { -+ cand = t; -+ cand_score = score; -+ } - } - -- for (idx = 1; idx < ARRAY_SIZE(sel); idx++) -- if (sel[idx] != NULL) -- return sel[idx]; -+ if (cand != NULL) -+ return cand; - - if (ign->fb_tunnel_dev->flags & IFF_UP) - return netdev_priv(ign->fb_tunnel_dev); diff --git a/core/linux-grsec-sources/APKBUILD b/core/linux-grsec-sources/APKBUILD deleted file mode 100644 index e1a5901bc..000000000 --- a/core/linux-grsec-sources/APKBUILD +++ /dev/null @@ -1,39 +0,0 @@ -# Maintainer: Natanael Copa <ncopa@alpinelinux.org> -_suff=grsec -pkgname=linux-$_suff-sources -pkgver=2.6.28.9 -pkgdesc="Linux kernel sources with grsecurity patch" -_kernver=2.6.28 -_grsecver=2.1.13-$_kernver.8-200903191958 -pkgrel=0 -options="!strip" -license=GPL-2 -url=http://kernel.org -source="ftp://ftp.kernel.org/pub/linux/kernel/v2.6/linux-$_kernver.tar.bz2 - ftp://ftp.kernel.org/pub/linux/kernel/v2.6/patch-$pkgver.bz2 - http://www.grsecurity.net/test/grsecurity-$_grsecver.patch - 0001-linux-2.6.28.5-ipgre-strict-binding.patch - 0002-linux-2.6.28.5-ipgre-optimize-hash-lookup.patch - " - -build() { - cd $srcdir/linux-$_kernver - if [ "$_kernver" != "$pkgver" ]; then - bunzip2 -c < ../patch-$pkgver.bz2 | patch -p1 || return 1 - fi - - for i in ../*.patch; do - msg "Applying $i..." - patch -p1 < $i || return 1 - done - - mkdir -p "$pkgdir/usr/src" - cd "$srcdir" - mv "linux-$_kernver" "$pkgdir/usr/src/linux-$pkgver-$_suff" -} - -md5sums="d351e44709c9810b85e29b877f50968a linux-2.6.28.tar.bz2 -27a43f76cf4b90db18df6d1c5e72789b patch-2.6.28.9.bz2 -e98fdd8e286579c61822ef264b56dee4 grsecurity-2.1.13-2.6.28.8-200903191958.patch -7673b4521283ad41434a18ca18b16ad8 0001-linux-2.6.28.5-ipgre-strict-binding.patch -8f405c738b150c532c46eaad5390cca2 0002-linux-2.6.28.5-ipgre-optimize-hash-lookup.patch" diff --git a/core/linux-grsec-sources/grsecurity-2.1.13-2.6.28.8-200903191958.patch b/core/linux-grsec-sources/grsecurity-2.1.13-2.6.28.8-200903191958.patch deleted file mode 100644 index c4ec6365f..000000000 --- a/core/linux-grsec-sources/grsecurity-2.1.13-2.6.28.8-200903191958.patch +++ /dev/null @@ -1,37186 +0,0 @@ -diff -urNp linux-2.6.28.8/arch/alpha/include/asm/elf.h linux-2.6.28.8/arch/alpha/include/asm/elf.h ---- linux-2.6.28.8/arch/alpha/include/asm/elf.h 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/alpha/include/asm/elf.h 2009-02-21 09:37:48.000000000 -0500 -@@ -91,6 +91,13 @@ typedef elf_fpreg_t elf_fpregset_t[ELF_N - - #define ELF_ET_DYN_BASE (TASK_UNMAPPED_BASE + 0x1000000) - -+#ifdef CONFIG_PAX_ASLR -+#define PAX_ELF_ET_DYN_BASE (current->personality & ADDR_LIMIT_32BIT ? 0x10000 : 0x120000000UL) -+ -+#define PAX_DELTA_MMAP_LEN (current->personality & ADDR_LIMIT_32BIT ? 14 : 28) -+#define PAX_DELTA_STACK_LEN (current->personality & ADDR_LIMIT_32BIT ? 14 : 19) -+#endif -+ - /* $0 is set by ld.so to a pointer to a function which might be - registered using atexit. This provides a mean for the dynamic - linker to call DT_FINI functions for shared libraries that have -diff -urNp linux-2.6.28.8/arch/alpha/include/asm/kmap_types.h linux-2.6.28.8/arch/alpha/include/asm/kmap_types.h ---- linux-2.6.28.8/arch/alpha/include/asm/kmap_types.h 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/alpha/include/asm/kmap_types.h 2009-02-21 09:37:48.000000000 -0500 -@@ -24,7 +24,8 @@ D(9) KM_IRQ0, - D(10) KM_IRQ1, - D(11) KM_SOFTIRQ0, - D(12) KM_SOFTIRQ1, --D(13) KM_TYPE_NR -+D(13) KM_CLEARPAGE, -+D(14) KM_TYPE_NR - }; - - #undef D -diff -urNp linux-2.6.28.8/arch/alpha/include/asm/pgtable.h linux-2.6.28.8/arch/alpha/include/asm/pgtable.h ---- linux-2.6.28.8/arch/alpha/include/asm/pgtable.h 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/alpha/include/asm/pgtable.h 2009-02-21 09:37:48.000000000 -0500 -@@ -101,6 +101,17 @@ struct vm_area_struct; - #define PAGE_SHARED __pgprot(_PAGE_VALID | __ACCESS_BITS) - #define PAGE_COPY __pgprot(_PAGE_VALID | __ACCESS_BITS | _PAGE_FOW) - #define PAGE_READONLY __pgprot(_PAGE_VALID | __ACCESS_BITS | _PAGE_FOW) -+ -+#ifdef CONFIG_PAX_PAGEEXEC -+# define PAGE_SHARED_NOEXEC __pgprot(_PAGE_VALID | __ACCESS_BITS | _PAGE_FOE) -+# define PAGE_COPY_NOEXEC __pgprot(_PAGE_VALID | __ACCESS_BITS | _PAGE_FOW | _PAGE_FOE) -+# define PAGE_READONLY_NOEXEC __pgprot(_PAGE_VALID | __ACCESS_BITS | _PAGE_FOW | _PAGE_FOE) -+#else -+# define PAGE_SHARED_NOEXEC PAGE_SHARED -+# define PAGE_COPY_NOEXEC PAGE_COPY -+# define PAGE_READONLY_NOEXEC PAGE_READONLY -+#endif -+ - #define PAGE_KERNEL __pgprot(_PAGE_VALID | _PAGE_ASM | _PAGE_KRE | _PAGE_KWE) - - #define _PAGE_NORMAL(x) __pgprot(_PAGE_VALID | __ACCESS_BITS | (x)) -diff -urNp linux-2.6.28.8/arch/alpha/kernel/module.c linux-2.6.28.8/arch/alpha/kernel/module.c ---- linux-2.6.28.8/arch/alpha/kernel/module.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/alpha/kernel/module.c 2009-02-21 09:37:48.000000000 -0500 -@@ -182,7 +182,7 @@ apply_relocate_add(Elf64_Shdr *sechdrs, - - /* The small sections were sorted to the end of the segment. - The following should definitely cover them. */ -- gp = (u64)me->module_core + me->core_size - 0x8000; -+ gp = (u64)me->module_core_rw + me->core_size_rw - 0x8000; - got = sechdrs[me->arch.gotsecindex].sh_addr; - - for (i = 0; i < n; i++) { -diff -urNp linux-2.6.28.8/arch/alpha/kernel/osf_sys.c linux-2.6.28.8/arch/alpha/kernel/osf_sys.c ---- linux-2.6.28.8/arch/alpha/kernel/osf_sys.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/alpha/kernel/osf_sys.c 2009-02-21 09:37:48.000000000 -0500 -@@ -1230,6 +1230,10 @@ arch_get_unmapped_area(struct file *filp - merely specific addresses, but regions of memory -- perhaps - this feature should be incorporated into all ports? */ - -+#ifdef CONFIG_PAX_RANDMMAP -+ if (!(current->mm->pax_flags & MF_PAX_RANDMMAP)) -+#endif -+ - if (addr) { - addr = arch_get_unmapped_area_1 (PAGE_ALIGN(addr), len, limit); - if (addr != (unsigned long) -ENOMEM) -@@ -1237,8 +1241,8 @@ arch_get_unmapped_area(struct file *filp - } - - /* Next, try allocating at TASK_UNMAPPED_BASE. */ -- addr = arch_get_unmapped_area_1 (PAGE_ALIGN(TASK_UNMAPPED_BASE), -- len, limit); -+ addr = arch_get_unmapped_area_1 (PAGE_ALIGN(current->mm->mmap_base), len, limit); -+ - if (addr != (unsigned long) -ENOMEM) - return addr; - -diff -urNp linux-2.6.28.8/arch/alpha/kernel/ptrace.c linux-2.6.28.8/arch/alpha/kernel/ptrace.c ---- linux-2.6.28.8/arch/alpha/kernel/ptrace.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/alpha/kernel/ptrace.c 2009-02-21 09:37:48.000000000 -0500 -@@ -266,6 +266,9 @@ long arch_ptrace(struct task_struct *chi - size_t copied; - long ret; - -+ if (gr_handle_ptrace(child, request)) -+ return -EPERM; -+ - switch (request) { - /* When I and D space are separate, these will need to be fixed. */ - case PTRACE_PEEKTEXT: /* read word at location addr. */ -diff -urNp linux-2.6.28.8/arch/alpha/mm/fault.c linux-2.6.28.8/arch/alpha/mm/fault.c ---- linux-2.6.28.8/arch/alpha/mm/fault.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/alpha/mm/fault.c 2009-02-21 09:37:48.000000000 -0500 -@@ -54,6 +54,124 @@ __load_new_mm_context(struct mm_struct * - __reload_thread(pcb); - } - -+#ifdef CONFIG_PAX_PAGEEXEC -+/* -+ * PaX: decide what to do with offenders (regs->pc = fault address) -+ * -+ * returns 1 when task should be killed -+ * 2 when patched PLT trampoline was detected -+ * 3 when unpatched PLT trampoline was detected -+ */ -+static int pax_handle_fetch_fault(struct pt_regs *regs) -+{ -+ -+#ifdef CONFIG_PAX_EMUPLT -+ int err; -+ -+ do { /* PaX: patched PLT emulation #1 */ -+ unsigned int ldah, ldq, jmp; -+ -+ err = get_user(ldah, (unsigned int *)regs->pc); -+ err |= get_user(ldq, (unsigned int *)(regs->pc+4)); -+ err |= get_user(jmp, (unsigned int *)(regs->pc+8)); -+ -+ if (err) -+ break; -+ -+ if ((ldah & 0xFFFF0000U) == 0x277B0000U && -+ (ldq & 0xFFFF0000U) == 0xA77B0000U && -+ jmp == 0x6BFB0000U) -+ { -+ unsigned long r27, addr; -+ unsigned long addrh = (ldah | 0xFFFFFFFFFFFF0000UL) << 16; -+ unsigned long addrl = ldq | 0xFFFFFFFFFFFF0000UL; -+ -+ addr = regs->r27 + ((addrh ^ 0x80000000UL) + 0x80000000UL) + ((addrl ^ 0x8000UL) + 0x8000UL); -+ err = get_user(r27, (unsigned long *)addr); -+ if (err) -+ break; -+ -+ regs->r27 = r27; -+ regs->pc = r27; -+ return 2; -+ } -+ } while (0); -+ -+ do { /* PaX: patched PLT emulation #2 */ -+ unsigned int ldah, lda, br; -+ -+ err = get_user(ldah, (unsigned int *)regs->pc); -+ err |= get_user(lda, (unsigned int *)(regs->pc+4)); -+ err |= get_user(br, (unsigned int *)(regs->pc+8)); -+ -+ if (err) -+ break; -+ -+ if ((ldah & 0xFFFF0000U) == 0x277B0000U && -+ (lda & 0xFFFF0000U) == 0xA77B0000U && -+ (br & 0xFFE00000U) == 0xC3E00000U) -+ { -+ unsigned long addr = br | 0xFFFFFFFFFFE00000UL; -+ unsigned long addrh = (ldah | 0xFFFFFFFFFFFF0000UL) << 16; -+ unsigned long addrl = lda | 0xFFFFFFFFFFFF0000UL; -+ -+ regs->r27 += ((addrh ^ 0x80000000UL) + 0x80000000UL) + ((addrl ^ 0x8000UL) + 0x8000UL); -+ regs->pc += 12 + (((addr ^ 0x00100000UL) + 0x00100000UL) << 2); -+ return 2; -+ } -+ } while (0); -+ -+ do { /* PaX: unpatched PLT emulation */ -+ unsigned int br; -+ -+ err = get_user(br, (unsigned int *)regs->pc); -+ -+ if (!err && (br & 0xFFE00000U) == 0xC3800000U) { -+ unsigned int br2, ldq, nop, jmp; -+ unsigned long addr = br | 0xFFFFFFFFFFE00000UL, resolver; -+ -+ addr = regs->pc + 4 + (((addr ^ 0x00100000UL) + 0x00100000UL) << 2); -+ err = get_user(br2, (unsigned int *)addr); -+ err |= get_user(ldq, (unsigned int *)(addr+4)); -+ err |= get_user(nop, (unsigned int *)(addr+8)); -+ err |= get_user(jmp, (unsigned int *)(addr+12)); -+ err |= get_user(resolver, (unsigned long *)(addr+16)); -+ -+ if (err) -+ break; -+ -+ if (br2 == 0xC3600000U && -+ ldq == 0xA77B000CU && -+ nop == 0x47FF041FU && -+ jmp == 0x6B7B0000U) -+ { -+ regs->r28 = regs->pc+4; -+ regs->r27 = addr+16; -+ regs->pc = resolver; -+ return 3; -+ } -+ } -+ } while (0); -+#endif -+ -+ return 1; -+} -+ -+void pax_report_insns(void *pc, void *sp) -+{ -+ unsigned long i; -+ -+ printk(KERN_ERR "PAX: bytes at PC: "); -+ for (i = 0; i < 5; i++) { -+ unsigned int c; -+ if (get_user(c, (unsigned int *)pc+i)) -+ printk(KERN_CONT "???????? "); -+ else -+ printk(KERN_CONT "%08x ", c); -+ } -+ printk("\n"); -+} -+#endif - - /* - * This routine handles page faults. It determines the address, -@@ -131,8 +249,29 @@ do_page_fault(unsigned long address, uns - good_area: - si_code = SEGV_ACCERR; - if (cause < 0) { -- if (!(vma->vm_flags & VM_EXEC)) -+ if (!(vma->vm_flags & VM_EXEC)) { -+ -+#ifdef CONFIG_PAX_PAGEEXEC -+ if (!(mm->pax_flags & MF_PAX_PAGEEXEC) || address != regs->pc) -+ goto bad_area; -+ -+ up_read(&mm->mmap_sem); -+ switch (pax_handle_fetch_fault(regs)) { -+ -+#ifdef CONFIG_PAX_EMUPLT -+ case 2: -+ case 3: -+ return; -+#endif -+ -+ } -+ pax_report_fault(regs, (void *)regs->pc, (void *)rdusp()); -+ do_group_exit(SIGKILL); -+#else - goto bad_area; -+#endif -+ -+ } - } else if (!cause) { - /* Allow reads even for write-only mappings */ - if (!(vma->vm_flags & (VM_READ | VM_WRITE))) -diff -urNp linux-2.6.28.8/arch/arm/include/asm/elf.h linux-2.6.28.8/arch/arm/include/asm/elf.h ---- linux-2.6.28.8/arch/arm/include/asm/elf.h 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/arm/include/asm/elf.h 2009-02-21 09:37:48.000000000 -0500 -@@ -99,7 +99,14 @@ extern int arm_elf_read_implies_exec(con - the loader. We need to make sure that it is out of the way of the program - that it will "exec", and that there is sufficient room for the brk. */ - --#define ELF_ET_DYN_BASE (2 * TASK_SIZE / 3) -+#define ELF_ET_DYN_BASE (TASK_SIZE / 3 * 2) -+ -+#ifdef CONFIG_PAX_ASLR -+#define PAX_ELF_ET_DYN_BASE 0x00008000UL -+ -+#define PAX_DELTA_MMAP_LEN ((current->personality == PER_LINUX_32BIT) ? 16 : 10) -+#define PAX_DELTA_STACK_LEN ((current->personality == PER_LINUX_32BIT) ? 16 : 10) -+#endif - - /* When the program starts, a1 contains a pointer to a function to be - registered with atexit, as per the SVR4 ABI. A value of 0 means we -diff -urNp linux-2.6.28.8/arch/arm/include/asm/kmap_types.h linux-2.6.28.8/arch/arm/include/asm/kmap_types.h ---- linux-2.6.28.8/arch/arm/include/asm/kmap_types.h 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/arm/include/asm/kmap_types.h 2009-02-21 09:37:48.000000000 -0500 -@@ -18,6 +18,7 @@ enum km_type { - KM_IRQ1, - KM_SOFTIRQ0, - KM_SOFTIRQ1, -+ KM_CLEARPAGE, - KM_TYPE_NR - }; - -diff -urNp linux-2.6.28.8/arch/arm/mm/mmap.c linux-2.6.28.8/arch/arm/mm/mmap.c ---- linux-2.6.28.8/arch/arm/mm/mmap.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/arm/mm/mmap.c 2009-02-21 09:37:48.000000000 -0500 -@@ -62,6 +62,10 @@ arch_get_unmapped_area(struct file *filp - if (len > TASK_SIZE) - return -ENOMEM; - -+#ifdef CONFIG_PAX_RANDMMAP -+ if (!(mm->pax_flags & MF_PAX_RANDMMAP)) -+#endif -+ - if (addr) { - if (do_align) - addr = COLOUR_ALIGN(addr, pgoff); -@@ -74,10 +78,10 @@ arch_get_unmapped_area(struct file *filp - return addr; - } - if (len > mm->cached_hole_size) { -- start_addr = addr = mm->free_area_cache; -+ start_addr = addr = mm->free_area_cache; - } else { -- start_addr = addr = TASK_UNMAPPED_BASE; -- mm->cached_hole_size = 0; -+ start_addr = addr = mm->mmap_base; -+ mm->cached_hole_size = 0; - } - - full_search: -@@ -93,8 +97,8 @@ full_search: - * Start a new search - just in case we missed - * some holes. - */ -- if (start_addr != TASK_UNMAPPED_BASE) { -- start_addr = addr = TASK_UNMAPPED_BASE; -+ if (start_addr != mm->mmap_base) { -+ start_addr = addr = mm->mmap_base; - mm->cached_hole_size = 0; - goto full_search; - } -diff -urNp linux-2.6.28.8/arch/avr32/include/asm/elf.h linux-2.6.28.8/arch/avr32/include/asm/elf.h ---- linux-2.6.28.8/arch/avr32/include/asm/elf.h 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/avr32/include/asm/elf.h 2009-02-21 09:37:48.000000000 -0500 -@@ -85,8 +85,14 @@ typedef struct user_fpu_struct elf_fpreg - the loader. We need to make sure that it is out of the way of the program - that it will "exec", and that there is sufficient room for the brk. */ - --#define ELF_ET_DYN_BASE (2 * TASK_SIZE / 3) -+#define ELF_ET_DYN_BASE (TASK_SIZE / 3 * 2) - -+#ifdef CONFIG_PAX_ASLR -+#define PAX_ELF_ET_DYN_BASE 0x00001000UL -+ -+#define PAX_DELTA_MMAP_LEN 15 -+#define PAX_DELTA_STACK_LEN 15 -+#endif - - /* This yields a mask that user programs can use to figure out what - instruction set this CPU supports. This could be done in user space, -diff -urNp linux-2.6.28.8/arch/avr32/include/asm/kmap_types.h linux-2.6.28.8/arch/avr32/include/asm/kmap_types.h ---- linux-2.6.28.8/arch/avr32/include/asm/kmap_types.h 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/avr32/include/asm/kmap_types.h 2009-02-21 09:37:48.000000000 -0500 -@@ -22,7 +22,8 @@ D(10) KM_IRQ0, - D(11) KM_IRQ1, - D(12) KM_SOFTIRQ0, - D(13) KM_SOFTIRQ1, --D(14) KM_TYPE_NR -+D(14) KM_CLEARPAGE, -+D(15) KM_TYPE_NR - }; - - #undef D -diff -urNp linux-2.6.28.8/arch/avr32/mm/fault.c linux-2.6.28.8/arch/avr32/mm/fault.c ---- linux-2.6.28.8/arch/avr32/mm/fault.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/avr32/mm/fault.c 2009-02-21 09:37:48.000000000 -0500 -@@ -41,6 +41,23 @@ static inline int notify_page_fault(stru - - int exception_trace = 1; - -+#ifdef CONFIG_PAX_PAGEEXEC -+void pax_report_insns(void *pc, void *sp) -+{ -+ unsigned long i; -+ -+ printk(KERN_ERR "PAX: bytes at PC: "); -+ for (i = 0; i < 20; i++) { -+ unsigned char c; -+ if (get_user(c, (unsigned char *)pc+i)) -+ printk(KERN_CONT "???????? "); -+ else -+ printk(KERN_CONT "%02x ", c); -+ } -+ printk("\n"); -+} -+#endif -+ - /* - * This routine handles page faults. It determines the address and the - * problem, and then passes it off to one of the appropriate routines. -@@ -157,6 +174,16 @@ bad_area: - up_read(&mm->mmap_sem); - - if (user_mode(regs)) { -+ -+#ifdef CONFIG_PAX_PAGEEXEC -+ if (mm->pax_flags & MF_PAX_PAGEEXEC) { -+ if (ecr == ECR_PROTECTION_X || ecr == ECR_TLB_MISS_X) { -+ pax_report_fault(regs, (void *)regs->pc, (void *)regs->sp); -+ do_group_exit(SIGKILL); -+ } -+ } -+#endif -+ - if (exception_trace && printk_ratelimit()) - printk("%s%s[%d]: segfault at %08lx pc %08lx " - "sp %08lx ecr %lu\n", -diff -urNp linux-2.6.28.8/arch/blackfin/include/asm/kmap_types.h linux-2.6.28.8/arch/blackfin/include/asm/kmap_types.h ---- linux-2.6.28.8/arch/blackfin/include/asm/kmap_types.h 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/blackfin/include/asm/kmap_types.h 2009-02-21 09:37:48.000000000 -0500 -@@ -15,6 +15,7 @@ enum km_type { - KM_IRQ1, - KM_SOFTIRQ0, - KM_SOFTIRQ1, -+ KM_CLEARPAGE, - KM_TYPE_NR - }; - -diff -urNp linux-2.6.28.8/arch/cris/include/asm/kmap_types.h linux-2.6.28.8/arch/cris/include/asm/kmap_types.h ---- linux-2.6.28.8/arch/cris/include/asm/kmap_types.h 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/cris/include/asm/kmap_types.h 2009-02-21 09:37:48.000000000 -0500 -@@ -19,6 +19,7 @@ enum km_type { - KM_IRQ1, - KM_SOFTIRQ0, - KM_SOFTIRQ1, -+ KM_CLEARPAGE, - KM_TYPE_NR - }; - -diff -urNp linux-2.6.28.8/arch/h8300/include/asm/kmap_types.h linux-2.6.28.8/arch/h8300/include/asm/kmap_types.h ---- linux-2.6.28.8/arch/h8300/include/asm/kmap_types.h 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/h8300/include/asm/kmap_types.h 2009-02-21 09:37:48.000000000 -0500 -@@ -15,6 +15,7 @@ enum km_type { - KM_IRQ1, - KM_SOFTIRQ0, - KM_SOFTIRQ1, -+ KM_CLEARPAGE, - KM_TYPE_NR - }; - -diff -urNp linux-2.6.28.8/arch/ia64/ia32/binfmt_elf32.c linux-2.6.28.8/arch/ia64/ia32/binfmt_elf32.c ---- linux-2.6.28.8/arch/ia64/ia32/binfmt_elf32.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/ia64/ia32/binfmt_elf32.c 2009-02-21 09:37:48.000000000 -0500 -@@ -45,6 +45,13 @@ randomize_stack_top(unsigned long stack_ - - #define elf_read_implies_exec(ex, have_pt_gnu_stack) (!(have_pt_gnu_stack)) - -+#ifdef CONFIG_PAX_ASLR -+#define PAX_ELF_ET_DYN_BASE (current->personality == PER_LINUX32 ? 0x08048000UL : 0x4000000000000000UL) -+ -+#define PAX_DELTA_MMAP_LEN (current->personality == PER_LINUX32 ? 16 : 3*PAGE_SHIFT - 13) -+#define PAX_DELTA_STACK_LEN (current->personality == PER_LINUX32 ? 16 : 3*PAGE_SHIFT - 13) -+#endif -+ - /* Ugly but avoids duplication */ - #include "../../../fs/binfmt_elf.c" - -diff -urNp linux-2.6.28.8/arch/ia64/ia32/ia32priv.h linux-2.6.28.8/arch/ia64/ia32/ia32priv.h ---- linux-2.6.28.8/arch/ia64/ia32/ia32priv.h 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/ia64/ia32/ia32priv.h 2009-02-21 09:37:48.000000000 -0500 -@@ -296,7 +296,14 @@ typedef struct compat_siginfo { - #define ELF_DATA ELFDATA2LSB - #define ELF_ARCH EM_386 - --#define IA32_STACK_TOP IA32_PAGE_OFFSET -+#ifdef CONFIG_PAX_RANDUSTACK -+#define __IA32_DELTA_STACK (current->mm->delta_stack) -+#else -+#define __IA32_DELTA_STACK 0UL -+#endif -+ -+#define IA32_STACK_TOP (IA32_PAGE_OFFSET - __IA32_DELTA_STACK) -+ - #define IA32_GATE_OFFSET IA32_PAGE_OFFSET - #define IA32_GATE_END IA32_PAGE_OFFSET + PAGE_SIZE - -diff -urNp linux-2.6.28.8/arch/ia64/include/asm/elf.h linux-2.6.28.8/arch/ia64/include/asm/elf.h ---- linux-2.6.28.8/arch/ia64/include/asm/elf.h 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/ia64/include/asm/elf.h 2009-02-21 09:37:48.000000000 -0500 -@@ -43,6 +43,13 @@ - */ - #define ELF_ET_DYN_BASE (TASK_UNMAPPED_BASE + 0x800000000UL) - -+#ifdef CONFIG_PAX_ASLR -+#define PAX_ELF_ET_DYN_BASE (current->personality == PER_LINUX32 ? 0x08048000UL : 0x4000000000000000UL) -+ -+#define PAX_DELTA_MMAP_LEN (current->personality == PER_LINUX32 ? 16 : 3*PAGE_SHIFT - 13) -+#define PAX_DELTA_STACK_LEN (current->personality == PER_LINUX32 ? 16 : 3*PAGE_SHIFT - 13) -+#endif -+ - #define PT_IA_64_UNWIND 0x70000001 - - /* IA-64 relocations: */ -diff -urNp linux-2.6.28.8/arch/ia64/include/asm/kmap_types.h linux-2.6.28.8/arch/ia64/include/asm/kmap_types.h ---- linux-2.6.28.8/arch/ia64/include/asm/kmap_types.h 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/ia64/include/asm/kmap_types.h 2009-02-21 09:37:48.000000000 -0500 -@@ -22,7 +22,8 @@ D(9) KM_IRQ0, - D(10) KM_IRQ1, - D(11) KM_SOFTIRQ0, - D(12) KM_SOFTIRQ1, --D(13) KM_TYPE_NR -+D(13) KM_CLEARPAGE, -+D(14) KM_TYPE_NR - }; - - #undef D -diff -urNp linux-2.6.28.8/arch/ia64/include/asm/pgtable.h linux-2.6.28.8/arch/ia64/include/asm/pgtable.h ---- linux-2.6.28.8/arch/ia64/include/asm/pgtable.h 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/ia64/include/asm/pgtable.h 2009-02-21 09:37:48.000000000 -0500 -@@ -143,6 +143,17 @@ - #define PAGE_READONLY __pgprot(__ACCESS_BITS | _PAGE_PL_3 | _PAGE_AR_R) - #define PAGE_COPY __pgprot(__ACCESS_BITS | _PAGE_PL_3 | _PAGE_AR_R) - #define PAGE_COPY_EXEC __pgprot(__ACCESS_BITS | _PAGE_PL_3 | _PAGE_AR_RX) -+ -+#ifdef CONFIG_PAX_PAGEEXEC -+# define PAGE_SHARED_NOEXEC __pgprot(__ACCESS_BITS | _PAGE_PL_3 | _PAGE_AR_RW) -+# define PAGE_READONLY_NOEXEC __pgprot(__ACCESS_BITS | _PAGE_PL_3 | _PAGE_AR_R) -+# define PAGE_COPY_NOEXEC __pgprot(__ACCESS_BITS | _PAGE_PL_3 | _PAGE_AR_R) -+#else -+# define PAGE_SHARED_NOEXEC PAGE_SHARED -+# define PAGE_READONLY_NOEXEC PAGE_READONLY -+# define PAGE_COPY_NOEXEC PAGE_COPY -+#endif -+ - #define PAGE_GATE __pgprot(__ACCESS_BITS | _PAGE_PL_0 | _PAGE_AR_X_RX) - #define PAGE_KERNEL __pgprot(__DIRTY_BITS | _PAGE_PL_0 | _PAGE_AR_RWX) - #define PAGE_KERNELRX __pgprot(__ACCESS_BITS | _PAGE_PL_0 | _PAGE_AR_RX) -diff -urNp linux-2.6.28.8/arch/ia64/kernel/module.c linux-2.6.28.8/arch/ia64/kernel/module.c ---- linux-2.6.28.8/arch/ia64/kernel/module.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/ia64/kernel/module.c 2009-02-21 09:37:48.000000000 -0500 -@@ -312,8 +312,7 @@ module_alloc (unsigned long size) - void - module_free (struct module *mod, void *module_region) - { -- if (mod && mod->arch.init_unw_table && -- module_region == mod->module_init) { -+ if (mod && mod->arch.init_unw_table && module_region == mod->module_init_rx) { - unw_remove_unwind_table(mod->arch.init_unw_table); - mod->arch.init_unw_table = NULL; - } -@@ -491,15 +490,39 @@ module_frob_arch_sections (Elf_Ehdr *ehd - } - - static inline int -+in_init_rx (const struct module *mod, uint64_t addr) -+{ -+ return addr - (uint64_t) mod->module_init_rx < mod->init_size_rx; -+} -+ -+static inline int -+in_init_rw (const struct module *mod, uint64_t addr) -+{ -+ return addr - (uint64_t) mod->module_init_rw < mod->init_size_rw; -+} -+ -+static inline int - in_init (const struct module *mod, uint64_t addr) - { -- return addr - (uint64_t) mod->module_init < mod->init_size; -+ return in_init_rx(mod, addr) || in_init_rw(mod, addr); -+} -+ -+static inline int -+in_core_rx (const struct module *mod, uint64_t addr) -+{ -+ return addr - (uint64_t) mod->module_core_rx < mod->core_size_rx; -+} -+ -+static inline int -+in_core_rw (const struct module *mod, uint64_t addr) -+{ -+ return addr - (uint64_t) mod->module_core_rw < mod->core_size_rw; - } - - static inline int - in_core (const struct module *mod, uint64_t addr) - { -- return addr - (uint64_t) mod->module_core < mod->core_size; -+ return in_core_rx(mod, addr) || in_core_rw(mod, addr); - } - - static inline int -@@ -683,7 +706,14 @@ do_reloc (struct module *mod, uint8_t r_ - break; - - case RV_BDREL: -- val -= (uint64_t) (in_init(mod, val) ? mod->module_init : mod->module_core); -+ if (in_init_rx(mod, val)) -+ val -= (uint64_t) mod->module_init_rx; -+ else if (in_init_rw(mod, val)) -+ val -= (uint64_t) mod->module_init_rw; -+ else if (in_core_rx(mod, val)) -+ val -= (uint64_t) mod->module_core_rx; -+ else if (in_core_rw(mod, val)) -+ val -= (uint64_t) mod->module_core_rw; - break; - - case RV_LTV: -@@ -817,15 +847,15 @@ apply_relocate_add (Elf64_Shdr *sechdrs, - * addresses have been selected... - */ - uint64_t gp; -- if (mod->core_size > MAX_LTOFF) -+ if (mod->core_size_rx + mod->core_size_rw > MAX_LTOFF) - /* - * This takes advantage of fact that SHF_ARCH_SMALL gets allocated - * at the end of the module. - */ -- gp = mod->core_size - MAX_LTOFF / 2; -+ gp = mod->core_size_rx + mod->core_size_rw - MAX_LTOFF / 2; - else -- gp = mod->core_size / 2; -- gp = (uint64_t) mod->module_core + ((gp + 7) & -8); -+ gp = (mod->core_size_rx + mod->core_size_rw) / 2; -+ gp = (uint64_t) mod->module_core_rx + ((gp + 7) & -8); - mod->arch.gp = gp; - DEBUGP("%s: placing gp at 0x%lx\n", __func__, gp); - } -diff -urNp linux-2.6.28.8/arch/ia64/kernel/sys_ia64.c linux-2.6.28.8/arch/ia64/kernel/sys_ia64.c ---- linux-2.6.28.8/arch/ia64/kernel/sys_ia64.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/ia64/kernel/sys_ia64.c 2009-02-21 09:37:48.000000000 -0500 -@@ -43,6 +43,13 @@ arch_get_unmapped_area (struct file *fil - if (REGION_NUMBER(addr) == RGN_HPAGE) - addr = 0; - #endif -+ -+#ifdef CONFIG_PAX_RANDMMAP -+ if (mm->pax_flags & MF_PAX_RANDMMAP) -+ addr = mm->free_area_cache; -+ else -+#endif -+ - if (!addr) - addr = mm->free_area_cache; - -@@ -61,9 +68,9 @@ arch_get_unmapped_area (struct file *fil - for (vma = find_vma(mm, addr); ; vma = vma->vm_next) { - /* At this point: (!vma || addr < vma->vm_end). */ - if (TASK_SIZE - len < addr || RGN_MAP_LIMIT - len < REGION_OFFSET(addr)) { -- if (start_addr != TASK_UNMAPPED_BASE) { -+ if (start_addr != mm->mmap_base) { - /* Start a new search --- just in case we missed some holes. */ -- addr = TASK_UNMAPPED_BASE; -+ addr = mm->mmap_base; - goto full_search; - } - return -ENOMEM; -diff -urNp linux-2.6.28.8/arch/ia64/mm/fault.c linux-2.6.28.8/arch/ia64/mm/fault.c ---- linux-2.6.28.8/arch/ia64/mm/fault.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/ia64/mm/fault.c 2009-02-21 09:37:48.000000000 -0500 -@@ -72,6 +72,23 @@ mapped_kernel_page_is_present (unsigned - return pte_present(pte); - } - -+#ifdef CONFIG_PAX_PAGEEXEC -+void pax_report_insns(void *pc, void *sp) -+{ -+ unsigned long i; -+ -+ printk(KERN_ERR "PAX: bytes at PC: "); -+ for (i = 0; i < 8; i++) { -+ unsigned int c; -+ if (get_user(c, (unsigned int *)pc+i)) -+ printk(KERN_CONT "???????? "); -+ else -+ printk(KERN_CONT "%08x ", c); -+ } -+ printk("\n"); -+} -+#endif -+ - void __kprobes - ia64_do_page_fault (unsigned long address, unsigned long isr, struct pt_regs *regs) - { -@@ -145,9 +162,23 @@ ia64_do_page_fault (unsigned long addres - mask = ( (((isr >> IA64_ISR_X_BIT) & 1UL) << VM_EXEC_BIT) - | (((isr >> IA64_ISR_W_BIT) & 1UL) << VM_WRITE_BIT)); - -- if ((vma->vm_flags & mask) != mask) -+ if ((vma->vm_flags & mask) != mask) { -+ -+#ifdef CONFIG_PAX_PAGEEXEC -+ if (!(vma->vm_flags & VM_EXEC) && (mask & VM_EXEC)) { -+ if (!(mm->pax_flags & MF_PAX_PAGEEXEC) || address != regs->cr_iip) -+ goto bad_area; -+ -+ up_read(&mm->mmap_sem); -+ pax_report_fault(regs, (void *)regs->cr_iip, (void *)regs->r12); -+ do_group_exit(SIGKILL); -+ } -+#endif -+ - goto bad_area; - -+ } -+ - survive: - /* - * If for any reason at all we couldn't handle the fault, make -diff -urNp linux-2.6.28.8/arch/ia64/mm/init.c linux-2.6.28.8/arch/ia64/mm/init.c ---- linux-2.6.28.8/arch/ia64/mm/init.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/ia64/mm/init.c 2009-02-21 09:37:48.000000000 -0500 -@@ -121,6 +121,19 @@ ia64_init_addr_space (void) - vma->vm_start = current->thread.rbs_bot & PAGE_MASK; - vma->vm_end = vma->vm_start + PAGE_SIZE; - vma->vm_flags = VM_DATA_DEFAULT_FLAGS|VM_GROWSUP|VM_ACCOUNT; -+ -+#ifdef CONFIG_PAX_PAGEEXEC -+ if (current->mm->pax_flags & MF_PAX_PAGEEXEC) { -+ vma->vm_flags &= ~VM_EXEC; -+ -+#ifdef CONFIG_PAX_MPROTECT -+ if (current->mm->pax_flags & MF_PAX_MPROTECT) -+ vma->vm_flags &= ~VM_MAYEXEC; -+#endif -+ -+ } -+#endif -+ - vma->vm_page_prot = vm_get_page_prot(vma->vm_flags); - down_write(¤t->mm->mmap_sem); - if (insert_vm_struct(current->mm, vma)) { -diff -urNp linux-2.6.28.8/arch/m68knommu/include/asm/kmap_types.h linux-2.6.28.8/arch/m68knommu/include/asm/kmap_types.h ---- linux-2.6.28.8/arch/m68knommu/include/asm/kmap_types.h 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/m68knommu/include/asm/kmap_types.h 2009-02-21 09:37:48.000000000 -0500 -@@ -15,6 +15,7 @@ enum km_type { - KM_IRQ1, - KM_SOFTIRQ0, - KM_SOFTIRQ1, -+ KM_CLEARPAGE, - KM_TYPE_NR - }; - -diff -urNp linux-2.6.28.8/arch/mips/include/asm/elf.h linux-2.6.28.8/arch/mips/include/asm/elf.h ---- linux-2.6.28.8/arch/mips/include/asm/elf.h 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/mips/include/asm/elf.h 2009-02-21 09:37:48.000000000 -0500 -@@ -364,4 +364,11 @@ extern int dump_task_fpu(struct task_str - #define ELF_ET_DYN_BASE (TASK_SIZE / 3 * 2) - #endif - -+#ifdef CONFIG_PAX_ASLR -+#define PAX_ELF_ET_DYN_BASE (test_thread_flag(TIF_32BIT_ADDR) ? 0x00400000UL : 0x00400000UL) -+ -+#define PAX_DELTA_MMAP_LEN (test_thread_flag(TIF_32BIT_ADDR) ? 27-PAGE_SHIFT : 36-PAGE_SHIFT) -+#define PAX_DELTA_STACK_LEN (test_thread_flag(TIF_32BIT_ADDR) ? 27-PAGE_SHIFT : 36-PAGE_SHIFT) -+#endif -+ - #endif /* _ASM_ELF_H */ -diff -urNp linux-2.6.28.8/arch/mips/include/asm/kmap_types.h linux-2.6.28.8/arch/mips/include/asm/kmap_types.h ---- linux-2.6.28.8/arch/mips/include/asm/kmap_types.h 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/mips/include/asm/kmap_types.h 2009-02-21 09:37:48.000000000 -0500 -@@ -22,7 +22,8 @@ D(9) KM_IRQ0, - D(10) KM_IRQ1, - D(11) KM_SOFTIRQ0, - D(12) KM_SOFTIRQ1, --D(13) KM_TYPE_NR -+D(13) KM_CLEARPAGE, -+D(14) KM_TYPE_NR - }; - - #undef D -diff -urNp linux-2.6.28.8/arch/mips/include/asm/page.h linux-2.6.28.8/arch/mips/include/asm/page.h ---- linux-2.6.28.8/arch/mips/include/asm/page.h 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/mips/include/asm/page.h 2009-02-21 09:37:48.000000000 -0500 -@@ -82,7 +82,7 @@ extern void copy_user_highpage(struct pa - #ifdef CONFIG_CPU_MIPS32 - typedef struct { unsigned long pte_low, pte_high; } pte_t; - #define pte_val(x) ((x).pte_low | ((unsigned long long)(x).pte_high << 32)) -- #define __pte(x) ({ pte_t __pte = {(x), ((unsigned long long)(x)) >> 32}; __pte; }) -+ #define __pte(x) ({ pte_t __pte = {(x), (x) >> 32}; __pte; }) - #else - typedef struct { unsigned long long pte; } pte_t; - #define pte_val(x) ((x).pte) -diff -urNp linux-2.6.28.8/arch/mips/include/asm/system.h linux-2.6.28.8/arch/mips/include/asm/system.h ---- linux-2.6.28.8/arch/mips/include/asm/system.h 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/mips/include/asm/system.h 2009-02-21 09:37:48.000000000 -0500 -@@ -217,6 +217,6 @@ extern void per_cpu_trap_init(void); - */ - #define __ARCH_WANT_UNLOCKED_CTXSW - --extern unsigned long arch_align_stack(unsigned long sp); -+#define arch_align_stack(x) ((x) & ALMASK) - - #endif /* _ASM_SYSTEM_H */ -diff -urNp linux-2.6.28.8/arch/mips/kernel/binfmt_elfn32.c linux-2.6.28.8/arch/mips/kernel/binfmt_elfn32.c ---- linux-2.6.28.8/arch/mips/kernel/binfmt_elfn32.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/mips/kernel/binfmt_elfn32.c 2009-02-21 09:37:48.000000000 -0500 -@@ -50,6 +50,13 @@ typedef elf_fpreg_t elf_fpregset_t[ELF_N - #undef ELF_ET_DYN_BASE - #define ELF_ET_DYN_BASE (TASK32_SIZE / 3 * 2) - -+#ifdef CONFIG_PAX_ASLR -+#define PAX_ELF_ET_DYN_BASE (test_thread_flag(TIF_32BIT_ADDR) ? 0x00400000UL : 0x00400000UL) -+ -+#define PAX_DELTA_MMAP_LEN (test_thread_flag(TIF_32BIT_ADDR) ? 27-PAGE_SHIFT : 36-PAGE_SHIFT) -+#define PAX_DELTA_STACK_LEN (test_thread_flag(TIF_32BIT_ADDR) ? 27-PAGE_SHIFT : 36-PAGE_SHIFT) -+#endif -+ - #include <asm/processor.h> - #include <linux/module.h> - #include <linux/elfcore.h> -diff -urNp linux-2.6.28.8/arch/mips/kernel/binfmt_elfo32.c linux-2.6.28.8/arch/mips/kernel/binfmt_elfo32.c ---- linux-2.6.28.8/arch/mips/kernel/binfmt_elfo32.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/mips/kernel/binfmt_elfo32.c 2009-02-21 09:37:48.000000000 -0500 -@@ -52,6 +52,13 @@ typedef elf_fpreg_t elf_fpregset_t[ELF_N - #undef ELF_ET_DYN_BASE - #define ELF_ET_DYN_BASE (TASK32_SIZE / 3 * 2) - -+#ifdef CONFIG_PAX_ASLR -+#define PAX_ELF_ET_DYN_BASE (test_thread_flag(TIF_32BIT_ADDR) ? 0x00400000UL : 0x00400000UL) -+ -+#define PAX_DELTA_MMAP_LEN (test_thread_flag(TIF_32BIT_ADDR) ? 27-PAGE_SHIFT : 36-PAGE_SHIFT) -+#define PAX_DELTA_STACK_LEN (test_thread_flag(TIF_32BIT_ADDR) ? 27-PAGE_SHIFT : 36-PAGE_SHIFT) -+#endif -+ - #include <asm/processor.h> - #include <linux/module.h> - #include <linux/elfcore.h> -diff -urNp linux-2.6.28.8/arch/mips/kernel/process.c linux-2.6.28.8/arch/mips/kernel/process.c ---- linux-2.6.28.8/arch/mips/kernel/process.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/mips/kernel/process.c 2009-02-21 09:37:48.000000000 -0500 -@@ -457,15 +457,3 @@ unsigned long get_wchan(struct task_stru - out: - return pc; - } -- --/* -- * Don't forget that the stack pointer must be aligned on a 8 bytes -- * boundary for 32-bits ABI and 16 bytes for 64-bits ABI. -- */ --unsigned long arch_align_stack(unsigned long sp) --{ -- if (!(current->personality & ADDR_NO_RANDOMIZE) && randomize_va_space) -- sp -= get_random_int() & ~PAGE_MASK; -- -- return sp & ALMASK; --} -diff -urNp linux-2.6.28.8/arch/mips/kernel/syscall.c linux-2.6.28.8/arch/mips/kernel/syscall.c ---- linux-2.6.28.8/arch/mips/kernel/syscall.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/mips/kernel/syscall.c 2009-02-21 09:37:48.000000000 -0500 -@@ -99,6 +99,11 @@ unsigned long arch_get_unmapped_area(str - do_color_align = 0; - if (filp || (flags & MAP_SHARED)) - do_color_align = 1; -+ -+#ifdef CONFIG_PAX_RANDMMAP -+ if (!(current->mm->pax_flags & MF_PAX_RANDMMAP)) -+#endif -+ - if (addr) { - if (do_color_align) - addr = COLOUR_ALIGN(addr, pgoff); -@@ -109,7 +114,7 @@ unsigned long arch_get_unmapped_area(str - (!vmm || addr + len <= vmm->vm_start)) - return addr; - } -- addr = TASK_UNMAPPED_BASE; -+ addr = current->mm->mmap_base; - if (do_color_align) - addr = COLOUR_ALIGN(addr, pgoff); - else -diff -urNp linux-2.6.28.8/arch/mips/mm/fault.c linux-2.6.28.8/arch/mips/mm/fault.c ---- linux-2.6.28.8/arch/mips/mm/fault.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/mips/mm/fault.c 2009-02-21 09:37:48.000000000 -0500 -@@ -26,6 +26,23 @@ - #include <asm/ptrace.h> - #include <asm/highmem.h> /* For VMALLOC_END */ - -+#ifdef CONFIG_PAX_PAGEEXEC -+void pax_report_insns(void *pc) -+{ -+ unsigned long i; -+ -+ printk(KERN_ERR "PAX: bytes at PC: "); -+ for (i = 0; i < 5; i++) { -+ unsigned int c; -+ if (get_user(c, (unsigned int *)pc+i)) -+ printk(KERN_CONT "???????? "); -+ else -+ printk(KERN_CONT "%08x ", c); -+ } -+ printk("\n"); -+} -+#endif -+ - /* - * This routine handles page faults. It determines the address, - * and the problem, and then passes it off to one of the appropriate -diff -urNp linux-2.6.28.8/arch/parisc/include/asm/elf.h linux-2.6.28.8/arch/parisc/include/asm/elf.h ---- linux-2.6.28.8/arch/parisc/include/asm/elf.h 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/parisc/include/asm/elf.h 2009-02-21 09:37:48.000000000 -0500 -@@ -333,6 +333,13 @@ struct pt_regs; /* forward declaration.. - - #define ELF_ET_DYN_BASE (TASK_UNMAPPED_BASE + 0x01000000) - -+#ifdef CONFIG_PAX_ASLR -+#define PAX_ELF_ET_DYN_BASE 0x10000UL -+ -+#define PAX_DELTA_MMAP_LEN 16 -+#define PAX_DELTA_STACK_LEN 16 -+#endif -+ - /* This yields a mask that user programs can use to figure out what - instruction set this CPU supports. This could be done in user space, - but it's not easy, and we've already done it here. */ -diff -urNp linux-2.6.28.8/arch/parisc/include/asm/kmap_types.h linux-2.6.28.8/arch/parisc/include/asm/kmap_types.h ---- linux-2.6.28.8/arch/parisc/include/asm/kmap_types.h 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/parisc/include/asm/kmap_types.h 2009-02-21 09:37:48.000000000 -0500 -@@ -22,7 +22,8 @@ D(9) KM_IRQ0, - D(10) KM_IRQ1, - D(11) KM_SOFTIRQ0, - D(12) KM_SOFTIRQ1, --D(13) KM_TYPE_NR -+D(13) KM_CLEARPAGE, -+D(14) KM_TYPE_NR - }; - - #undef D -diff -urNp linux-2.6.28.8/arch/parisc/include/asm/pgtable.h linux-2.6.28.8/arch/parisc/include/asm/pgtable.h ---- linux-2.6.28.8/arch/parisc/include/asm/pgtable.h 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/parisc/include/asm/pgtable.h 2009-02-21 09:37:48.000000000 -0500 -@@ -202,6 +202,17 @@ - #define PAGE_EXECREAD __pgprot(_PAGE_PRESENT | _PAGE_USER | _PAGE_READ | _PAGE_EXEC |_PAGE_ACCESSED) - #define PAGE_COPY PAGE_EXECREAD - #define PAGE_RWX __pgprot(_PAGE_PRESENT | _PAGE_USER | _PAGE_READ | _PAGE_WRITE | _PAGE_EXEC |_PAGE_ACCESSED) -+ -+#ifdef CONFIG_PAX_PAGEEXEC -+# define PAGE_SHARED_NOEXEC __pgprot(_PAGE_PRESENT | _PAGE_USER | _PAGE_READ | _PAGE_WRITE | _PAGE_ACCESSED) -+# define PAGE_COPY_NOEXEC __pgprot(_PAGE_PRESENT | _PAGE_USER | _PAGE_READ | _PAGE_ACCESSED) -+# define PAGE_READONLY_NOEXEC __pgprot(_PAGE_PRESENT | _PAGE_USER | _PAGE_READ | _PAGE_ACCESSED) -+#else -+# define PAGE_SHARED_NOEXEC PAGE_SHARED -+# define PAGE_COPY_NOEXEC PAGE_COPY -+# define PAGE_READONLY_NOEXEC PAGE_READONLY -+#endif -+ - #define PAGE_KERNEL __pgprot(_PAGE_KERNEL) - #define PAGE_KERNEL_RO __pgprot(_PAGE_KERNEL & ~_PAGE_WRITE) - #define PAGE_KERNEL_UNC __pgprot(_PAGE_KERNEL | _PAGE_NO_CACHE) -diff -urNp linux-2.6.28.8/arch/parisc/kernel/module.c linux-2.6.28.8/arch/parisc/kernel/module.c ---- linux-2.6.28.8/arch/parisc/kernel/module.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/parisc/kernel/module.c 2009-02-21 09:37:48.000000000 -0500 -@@ -75,16 +75,38 @@ - - /* three functions to determine where in the module core - * or init pieces the location is */ -+static inline int in_init_rx(struct module *me, void *loc) -+{ -+ return (loc >= me->module_init_rx && -+ loc < (me->module_init_rx + me->init_size_rx)); -+} -+ -+static inline int in_init_rw(struct module *me, void *loc) -+{ -+ return (loc >= me->module_init_rw && -+ loc < (me->module_init_rw + me->init_size_rw)); -+} -+ - static inline int in_init(struct module *me, void *loc) - { -- return (loc >= me->module_init && -- loc <= (me->module_init + me->init_size)); -+ return in_init_rx(me, loc) || in_init_rw(me, loc); -+} -+ -+static inline int in_core_rx(struct module *me, void *loc) -+{ -+ return (loc >= me->module_core_rx && -+ loc < (me->module_core_rx + me->core_size_rx)); -+} -+ -+static inline int in_core_rw(struct module *me, void *loc) -+{ -+ return (loc >= me->module_core_rw && -+ loc < (me->module_core_rw + me->core_size_rw)); - } - - static inline int in_core(struct module *me, void *loc) - { -- return (loc >= me->module_core && -- loc <= (me->module_core + me->core_size)); -+ return in_core_rx(me, loc) || in_core_rw(me, loc); - } - - static inline int in_local(struct module *me, void *loc) -@@ -298,21 +320,21 @@ int module_frob_arch_sections(CONST Elf_ - } - - /* align things a bit */ -- me->core_size = ALIGN(me->core_size, 16); -- me->arch.got_offset = me->core_size; -- me->core_size += gots * sizeof(struct got_entry); -- -- me->core_size = ALIGN(me->core_size, 16); -- me->arch.fdesc_offset = me->core_size; -- me->core_size += fdescs * sizeof(Elf_Fdesc); -- -- me->core_size = ALIGN(me->core_size, 16); -- me->arch.stub_offset = me->core_size; -- me->core_size += stubs * sizeof(struct stub_entry); -- -- me->init_size = ALIGN(me->init_size, 16); -- me->arch.init_stub_offset = me->init_size; -- me->init_size += init_stubs * sizeof(struct stub_entry); -+ me->core_size_rw = ALIGN(me->core_size_rw, 16); -+ me->arch.got_offset = me->core_size_rw; -+ me->core_size_rw += gots * sizeof(struct got_entry); -+ -+ me->core_size_rw = ALIGN(me->core_size_rw, 16); -+ me->arch.fdesc_offset = me->core_size_rw; -+ me->core_size_rw += fdescs * sizeof(Elf_Fdesc); -+ -+ me->core_size_rx = ALIGN(me->core_size_rx, 16); -+ me->arch.stub_offset = me->core_size_rx; -+ me->core_size_rx += stubs * sizeof(struct stub_entry); -+ -+ me->init_size_rx = ALIGN(me->init_size_rx, 16); -+ me->arch.init_stub_offset = me->init_size_rx; -+ me->init_size_rx += init_stubs * sizeof(struct stub_entry); - - me->arch.got_max = gots; - me->arch.fdesc_max = fdescs; -@@ -332,7 +354,7 @@ static Elf64_Word get_got(struct module - - BUG_ON(value == 0); - -- got = me->module_core + me->arch.got_offset; -+ got = me->module_core_rw + me->arch.got_offset; - for (i = 0; got[i].addr; i++) - if (got[i].addr == value) - goto out; -@@ -350,7 +372,7 @@ static Elf64_Word get_got(struct module - #ifdef CONFIG_64BIT - static Elf_Addr get_fdesc(struct module *me, unsigned long value) - { -- Elf_Fdesc *fdesc = me->module_core + me->arch.fdesc_offset; -+ Elf_Fdesc *fdesc = me->module_core_rw + me->arch.fdesc_offset; - - if (!value) { - printk(KERN_ERR "%s: zero OPD requested!\n", me->name); -@@ -368,7 +390,7 @@ static Elf_Addr get_fdesc(struct module - - /* Create new one */ - fdesc->addr = value; -- fdesc->gp = (Elf_Addr)me->module_core + me->arch.got_offset; -+ fdesc->gp = (Elf_Addr)me->module_core_rw + me->arch.got_offset; - return (Elf_Addr)fdesc; - } - #endif /* CONFIG_64BIT */ -@@ -388,12 +410,12 @@ static Elf_Addr get_stub(struct module * - if(init_section) { - i = me->arch.init_stub_count++; - BUG_ON(me->arch.init_stub_count > me->arch.init_stub_max); -- stub = me->module_init + me->arch.init_stub_offset + -+ stub = me->module_init_rx + me->arch.init_stub_offset + - i * sizeof(struct stub_entry); - } else { - i = me->arch.stub_count++; - BUG_ON(me->arch.stub_count > me->arch.stub_max); -- stub = me->module_core + me->arch.stub_offset + -+ stub = me->module_core_rx + me->arch.stub_offset + - i * sizeof(struct stub_entry); - } - -@@ -761,7 +783,7 @@ register_unwind_table(struct module *me, - - table = (unsigned char *)sechdrs[me->arch.unwind_section].sh_addr; - end = table + sechdrs[me->arch.unwind_section].sh_size; -- gp = (Elf_Addr)me->module_core + me->arch.got_offset; -+ gp = (Elf_Addr)me->module_core_rw + me->arch.got_offset; - - DEBUGP("register_unwind_table(), sect = %d at 0x%p - 0x%p (gp=0x%lx)\n", - me->arch.unwind_section, table, end, gp); -diff -urNp linux-2.6.28.8/arch/parisc/kernel/sys_parisc.c linux-2.6.28.8/arch/parisc/kernel/sys_parisc.c ---- linux-2.6.28.8/arch/parisc/kernel/sys_parisc.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/parisc/kernel/sys_parisc.c 2009-02-21 09:37:48.000000000 -0500 -@@ -98,7 +98,7 @@ unsigned long arch_get_unmapped_area(str - if (flags & MAP_FIXED) - return addr; - if (!addr) -- addr = TASK_UNMAPPED_BASE; -+ addr = current->mm->mmap_base; - - if (filp) { - addr = get_shared_area(filp->f_mapping, addr, len, pgoff); -diff -urNp linux-2.6.28.8/arch/parisc/kernel/traps.c linux-2.6.28.8/arch/parisc/kernel/traps.c ---- linux-2.6.28.8/arch/parisc/kernel/traps.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/parisc/kernel/traps.c 2009-02-21 09:37:48.000000000 -0500 -@@ -731,9 +731,7 @@ void handle_interruption(int code, struc - - down_read(¤t->mm->mmap_sem); - vma = find_vma(current->mm,regs->iaoq[0]); -- if (vma && (regs->iaoq[0] >= vma->vm_start) -- && (vma->vm_flags & VM_EXEC)) { -- -+ if (vma && (regs->iaoq[0] >= vma->vm_start)) { - fault_address = regs->iaoq[0]; - fault_space = regs->iasq[0]; - -diff -urNp linux-2.6.28.8/arch/parisc/mm/fault.c linux-2.6.28.8/arch/parisc/mm/fault.c ---- linux-2.6.28.8/arch/parisc/mm/fault.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/parisc/mm/fault.c 2009-02-21 09:37:48.000000000 -0500 -@@ -16,6 +16,7 @@ - #include <linux/sched.h> - #include <linux/interrupt.h> - #include <linux/module.h> -+#include <linux/unistd.h> - - #include <asm/uaccess.h> - #include <asm/traps.h> -@@ -53,7 +54,7 @@ DEFINE_PER_CPU(struct exception_data, ex - static unsigned long - parisc_acctyp(unsigned long code, unsigned int inst) - { -- if (code == 6 || code == 16) -+ if (code == 6 || code == 7 || code == 16) - return VM_EXEC; - - switch (inst & 0xf0000000) { -@@ -139,6 +140,116 @@ parisc_acctyp(unsigned long code, unsign - } - #endif - -+#ifdef CONFIG_PAX_PAGEEXEC -+/* -+ * PaX: decide what to do with offenders (instruction_pointer(regs) = fault address) -+ * -+ * returns 1 when task should be killed -+ * 2 when rt_sigreturn trampoline was detected -+ * 3 when unpatched PLT trampoline was detected -+ */ -+static int pax_handle_fetch_fault(struct pt_regs *regs) -+{ -+ -+#ifdef CONFIG_PAX_EMUPLT -+ int err; -+ -+ do { /* PaX: unpatched PLT emulation */ -+ unsigned int bl, depwi; -+ -+ err = get_user(bl, (unsigned int *)instruction_pointer(regs)); -+ err |= get_user(depwi, (unsigned int *)(instruction_pointer(regs)+4)); -+ -+ if (err) -+ break; -+ -+ if (bl == 0xEA9F1FDDU && depwi == 0xD6801C1EU) { -+ unsigned int ldw, bv, ldw2, addr = instruction_pointer(regs)-12; -+ -+ err = get_user(ldw, (unsigned int *)addr); -+ err |= get_user(bv, (unsigned int *)(addr+4)); -+ err |= get_user(ldw2, (unsigned int *)(addr+8)); -+ -+ if (err) -+ break; -+ -+ if (ldw == 0x0E801096U && -+ bv == 0xEAC0C000U && -+ ldw2 == 0x0E881095U) -+ { -+ unsigned int resolver, map; -+ -+ err = get_user(resolver, (unsigned int *)(instruction_pointer(regs)+8)); -+ err |= get_user(map, (unsigned int *)(instruction_pointer(regs)+12)); -+ if (err) -+ break; -+ -+ regs->gr[20] = instruction_pointer(regs)+8; -+ regs->gr[21] = map; -+ regs->gr[22] = resolver; -+ regs->iaoq[0] = resolver | 3UL; -+ regs->iaoq[1] = regs->iaoq[0] + 4; -+ return 3; -+ } -+ } -+ } while (0); -+#endif -+ -+#ifdef CONFIG_PAX_EMUTRAMP -+ -+#ifndef CONFIG_PAX_EMUSIGRT -+ if (!(current->mm->pax_flags & MF_PAX_EMUTRAMP)) -+ return 1; -+#endif -+ -+ do { /* PaX: rt_sigreturn emulation */ -+ unsigned int ldi1, ldi2, bel, nop; -+ -+ err = get_user(ldi1, (unsigned int *)instruction_pointer(regs)); -+ err |= get_user(ldi2, (unsigned int *)(instruction_pointer(regs)+4)); -+ err |= get_user(bel, (unsigned int *)(instruction_pointer(regs)+8)); -+ err |= get_user(nop, (unsigned int *)(instruction_pointer(regs)+12)); -+ -+ if (err) -+ break; -+ -+ if ((ldi1 == 0x34190000U || ldi1 == 0x34190002U) && -+ ldi2 == 0x3414015AU && -+ bel == 0xE4008200U && -+ nop == 0x08000240U) -+ { -+ regs->gr[25] = (ldi1 & 2) >> 1; -+ regs->gr[20] = __NR_rt_sigreturn; -+ regs->gr[31] = regs->iaoq[1] + 16; -+ regs->sr[0] = regs->iasq[1]; -+ regs->iaoq[0] = 0x100UL; -+ regs->iaoq[1] = regs->iaoq[0] + 4; -+ regs->iasq[0] = regs->sr[2]; -+ regs->iasq[1] = regs->sr[2]; -+ return 2; -+ } -+ } while (0); -+#endif -+ -+ return 1; -+} -+ -+void pax_report_insns(void *pc, void *sp) -+{ -+ unsigned long i; -+ -+ printk(KERN_ERR "PAX: bytes at PC: "); -+ for (i = 0; i < 5; i++) { -+ unsigned int c; -+ if (get_user(c, (unsigned int *)pc+i)) -+ printk(KERN_CONT "???????? "); -+ else -+ printk(KERN_CONT "%08x ", c); -+ } -+ printk("\n"); -+} -+#endif -+ - void do_page_fault(struct pt_regs *regs, unsigned long code, - unsigned long address) - { -@@ -165,8 +276,33 @@ good_area: - - acc_type = parisc_acctyp(code,regs->iir); - -- if ((vma->vm_flags & acc_type) != acc_type) -+ if ((vma->vm_flags & acc_type) != acc_type) { -+ -+#ifdef CONFIG_PAX_PAGEEXEC -+ if ((mm->pax_flags & MF_PAX_PAGEEXEC) && (acc_type & VM_EXEC) && -+ (address & ~3UL) == instruction_pointer(regs)) -+ { -+ up_read(&mm->mmap_sem); -+ switch (pax_handle_fetch_fault(regs)) { -+ -+#ifdef CONFIG_PAX_EMUPLT -+ case 3: -+ return; -+#endif -+ -+#ifdef CONFIG_PAX_EMUTRAMP -+ case 2: -+ return; -+#endif -+ -+ } -+ pax_report_fault(regs, (void *)instruction_pointer(regs), (void *)regs->gr[30]); -+ do_group_exit(SIGKILL); -+ } -+#endif -+ - goto bad_area; -+ } - - /* - * If for any reason at all we couldn't handle the fault, make -diff -urNp linux-2.6.28.8/arch/powerpc/include/asm/elf.h linux-2.6.28.8/arch/powerpc/include/asm/elf.h ---- linux-2.6.28.8/arch/powerpc/include/asm/elf.h 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/powerpc/include/asm/elf.h 2009-02-21 09:37:48.000000000 -0500 -@@ -180,6 +180,18 @@ typedef elf_fpreg_t elf_vsrreghalf_t32[E - - #define ELF_ET_DYN_BASE (0x20000000) - -+#ifdef CONFIG_PAX_ASLR -+#define PAX_ELF_ET_DYN_BASE (0x10000000UL) -+ -+#ifdef __powerpc64__ -+#define PAX_DELTA_MMAP_LEN (test_thread_flag(TIF_32BIT) ? 16 : 28) -+#define PAX_DELTA_STACK_LEN (test_thread_flag(TIF_32BIT) ? 16 : 28) -+#else -+#define PAX_DELTA_MMAP_LEN 15 -+#define PAX_DELTA_STACK_LEN 15 -+#endif -+#endif -+ - /* - * Our registers are always unsigned longs, whether we're a 32 bit - * process or 64 bit, on either a 64 bit or 32 bit kernel. -diff -urNp linux-2.6.28.8/arch/powerpc/include/asm/kmap_types.h linux-2.6.28.8/arch/powerpc/include/asm/kmap_types.h ---- linux-2.6.28.8/arch/powerpc/include/asm/kmap_types.h 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/powerpc/include/asm/kmap_types.h 2009-02-21 09:37:48.000000000 -0500 -@@ -26,6 +26,7 @@ enum km_type { - KM_SOFTIRQ1, - KM_PPC_SYNC_PAGE, - KM_PPC_SYNC_ICACHE, -+ KM_CLEARPAGE, - KM_TYPE_NR - }; - -diff -urNp linux-2.6.28.8/arch/powerpc/include/asm/page_64.h linux-2.6.28.8/arch/powerpc/include/asm/page_64.h ---- linux-2.6.28.8/arch/powerpc/include/asm/page_64.h 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/powerpc/include/asm/page_64.h 2009-02-21 09:37:48.000000000 -0500 -@@ -170,15 +170,18 @@ do { \ - * stack by default, so in the absense of a PT_GNU_STACK program header - * we turn execute permission off. - */ --#define VM_STACK_DEFAULT_FLAGS32 (VM_READ | VM_WRITE | VM_EXEC | \ -- VM_MAYREAD | VM_MAYWRITE | VM_MAYEXEC) -+#define VM_STACK_DEFAULT_FLAGS32 \ -+ (((current->personality & READ_IMPLIES_EXEC) ? VM_EXEC : 0) | \ -+ VM_READ | VM_WRITE | VM_MAYREAD | VM_MAYWRITE | VM_MAYEXEC) - - #define VM_STACK_DEFAULT_FLAGS64 (VM_READ | VM_WRITE | \ - VM_MAYREAD | VM_MAYWRITE | VM_MAYEXEC) - -+#ifndef CONFIG_PAX_PAGEEXEC - #define VM_STACK_DEFAULT_FLAGS \ - (test_thread_flag(TIF_32BIT) ? \ - VM_STACK_DEFAULT_FLAGS32 : VM_STACK_DEFAULT_FLAGS64) -+#endif - - #include <asm-generic/page.h> - -diff -urNp linux-2.6.28.8/arch/powerpc/include/asm/page.h linux-2.6.28.8/arch/powerpc/include/asm/page.h ---- linux-2.6.28.8/arch/powerpc/include/asm/page.h 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/powerpc/include/asm/page.h 2009-02-21 09:37:48.000000000 -0500 -@@ -111,8 +111,9 @@ extern phys_addr_t kernstart_addr; - * and needs to be executable. This means the whole heap ends - * up being executable. - */ --#define VM_DATA_DEFAULT_FLAGS32 (VM_READ | VM_WRITE | VM_EXEC | \ -- VM_MAYREAD | VM_MAYWRITE | VM_MAYEXEC) -+#define VM_DATA_DEFAULT_FLAGS32 \ -+ (((current->personality & READ_IMPLIES_EXEC) ? VM_EXEC : 0) | \ -+ VM_READ | VM_WRITE | VM_MAYREAD | VM_MAYWRITE | VM_MAYEXEC) - - #define VM_DATA_DEFAULT_FLAGS64 (VM_READ | VM_WRITE | \ - VM_MAYREAD | VM_MAYWRITE | VM_MAYEXEC) -diff -urNp linux-2.6.28.8/arch/powerpc/kernel/module_32.c linux-2.6.28.8/arch/powerpc/kernel/module_32.c ---- linux-2.6.28.8/arch/powerpc/kernel/module_32.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/powerpc/kernel/module_32.c 2009-02-21 09:37:48.000000000 -0500 -@@ -158,7 +158,7 @@ int module_frob_arch_sections(Elf32_Ehdr - me->arch.core_plt_section = i; - } - if (!me->arch.core_plt_section || !me->arch.init_plt_section) { -- printk("Module doesn't contain .plt or .init.plt sections.\n"); -+ printk("Module %s doesn't contain .plt or .init.plt sections.\n", me->name); - return -ENOEXEC; - } - -@@ -199,11 +199,16 @@ static uint32_t do_plt_call(void *locati - - DEBUGP("Doing plt for call to 0x%x at 0x%x\n", val, (unsigned int)location); - /* Init, or core PLT? */ -- if (location >= mod->module_core -- && location < mod->module_core + mod->core_size) -+ if ((location >= mod->module_core_rx && location < mod->module_core_rx + mod->core_size_rx) || -+ (location >= mod->module_core_rw && location < mod->module_core_rw + mod->core_size_rw)) - entry = (void *)sechdrs[mod->arch.core_plt_section].sh_addr; -- else -+ else if ((location >= mod->module_init_rx && location < mod->module_init_rx + mod->init_size_rx) || -+ (location >= mod->module_init_rw && location < mod->module_init_rw + mod->init_size_rw)) - entry = (void *)sechdrs[mod->arch.init_plt_section].sh_addr; -+ else { -+ printk(KERN_ERR "%s: invalid R_PPC_REL24 entry found\n", mod->name); -+ return ~0UL; -+ } - - /* Find this entry, or if that fails, the next avail. entry */ - while (entry->jump[0]) { -diff -urNp linux-2.6.28.8/arch/powerpc/kernel/signal_32.c linux-2.6.28.8/arch/powerpc/kernel/signal_32.c ---- linux-2.6.28.8/arch/powerpc/kernel/signal_32.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/powerpc/kernel/signal_32.c 2009-02-21 09:37:48.000000000 -0500 -@@ -857,7 +857,7 @@ int handle_rt_signal32(unsigned long sig - /* Save user registers on the stack */ - frame = &rt_sf->uc.uc_mcontext; - addr = frame; -- if (vdso32_rt_sigtramp && current->mm->context.vdso_base) { -+ if (vdso32_rt_sigtramp && current->mm->context.vdso_base != ~0UL) { - if (save_user_regs(regs, frame, 0, 1)) - goto badframe; - regs->link = current->mm->context.vdso_base + vdso32_rt_sigtramp; -diff -urNp linux-2.6.28.8/arch/powerpc/kernel/signal_64.c linux-2.6.28.8/arch/powerpc/kernel/signal_64.c ---- linux-2.6.28.8/arch/powerpc/kernel/signal_64.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/powerpc/kernel/signal_64.c 2009-02-21 09:37:48.000000000 -0500 -@@ -429,7 +429,7 @@ int handle_rt_signal64(int signr, struct - current->thread.fpscr.val = 0; - - /* Set up to return from userspace. */ -- if (vdso64_rt_sigtramp && current->mm->context.vdso_base) { -+ if (vdso64_rt_sigtramp && current->mm->context.vdso_base != ~0UL) { - regs->link = current->mm->context.vdso_base + vdso64_rt_sigtramp; - } else { - err |= setup_trampoline(__NR_rt_sigreturn, &frame->tramp[0]); -diff -urNp linux-2.6.28.8/arch/powerpc/kernel/vdso.c linux-2.6.28.8/arch/powerpc/kernel/vdso.c ---- linux-2.6.28.8/arch/powerpc/kernel/vdso.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/powerpc/kernel/vdso.c 2009-02-21 09:37:48.000000000 -0500 -@@ -212,7 +212,7 @@ int arch_setup_additional_pages(struct l - vdso_base = VDSO32_MBASE; - #endif - -- current->mm->context.vdso_base = 0; -+ current->mm->context.vdso_base = ~0UL; - - /* vDSO has a problem and was disabled, just don't "enable" it for the - * process -@@ -229,7 +229,7 @@ int arch_setup_additional_pages(struct l - */ - down_write(&mm->mmap_sem); - vdso_base = get_unmapped_area(NULL, vdso_base, -- vdso_pages << PAGE_SHIFT, 0, 0); -+ vdso_pages << PAGE_SHIFT, 0, MAP_PRIVATE | MAP_EXECUTABLE); - if (IS_ERR_VALUE(vdso_base)) { - rc = vdso_base; - goto fail_mmapsem; -diff -urNp linux-2.6.28.8/arch/powerpc/mm/fault.c linux-2.6.28.8/arch/powerpc/mm/fault.c ---- linux-2.6.28.8/arch/powerpc/mm/fault.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/powerpc/mm/fault.c 2009-02-21 09:37:48.000000000 -0500 -@@ -29,6 +29,10 @@ - #include <linux/module.h> - #include <linux/kprobes.h> - #include <linux/kdebug.h> -+#include <linux/slab.h> -+#include <linux/pagemap.h> -+#include <linux/compiler.h> -+#include <linux/unistd.h> - - #include <asm/page.h> - #include <asm/pgtable.h> -@@ -62,6 +66,363 @@ static inline int notify_page_fault(stru - } - #endif - -+#ifdef CONFIG_PAX_EMUSIGRT -+void pax_syscall_close(struct vm_area_struct *vma) -+{ -+ vma->vm_mm->call_syscall = 0UL; -+} -+ -+static int pax_syscall_fault(struct vm_area_struct *vma, struct vm_fault *vmf) -+{ -+ unsigned int *kaddr; -+ -+ vmf->page = alloc_page(GFP_HIGHUSER); -+ if (!vmf->page) -+ return VM_FAULT_OOM; -+ -+ kaddr = kmap(vmf->page); -+ memset(kaddr, 0, PAGE_SIZE); -+ kaddr[0] = 0x44000002U; /* sc */ -+ __flush_dcache_icache(kaddr); -+ kunmap(vmf->page); -+ return VM_FAULT_MAJOR; -+} -+ -+static struct vm_operations_struct pax_vm_ops = { -+ .close = pax_syscall_close, -+ .fault = pax_syscall_fault -+}; -+ -+static int pax_insert_vma(struct vm_area_struct *vma, unsigned long addr) -+{ -+ int ret; -+ -+ vma->vm_mm = current->mm; -+ vma->vm_start = addr; -+ vma->vm_end = addr + PAGE_SIZE; -+ vma->vm_flags = VM_READ | VM_EXEC | VM_MAYREAD | VM_MAYEXEC; -+ vma->vm_page_prot = vm_get_page_prot(vma->vm_flags); -+ vma->vm_ops = &pax_vm_ops; -+ -+ ret = insert_vm_struct(current->mm, vma); -+ if (ret) -+ return ret; -+ -+ ++current->mm->total_vm; -+ return 0; -+} -+#endif -+ -+#ifdef CONFIG_PAX_PAGEEXEC -+/* -+ * PaX: decide what to do with offenders (regs->nip = fault address) -+ * -+ * returns 1 when task should be killed -+ * 2 when patched GOT trampoline was detected -+ * 3 when patched PLT trampoline was detected -+ * 4 when unpatched PLT trampoline was detected -+ * 5 when sigreturn trampoline was detected -+ * 6 when rt_sigreturn trampoline was detected -+ */ -+static int pax_handle_fetch_fault(struct pt_regs *regs) -+{ -+ -+#if defined(CONFIG_PAX_EMUPLT) || defined(CONFIG_PAX_EMUSIGRT) -+ int err; -+#endif -+ -+#ifdef CONFIG_PAX_EMUPLT -+ do { /* PaX: patched GOT emulation */ -+ unsigned int blrl; -+ -+ err = get_user(blrl, (unsigned int *)regs->nip); -+ -+ if (!err && blrl == 0x4E800021U) { -+ unsigned long temp = regs->nip; -+ -+ regs->nip = regs->link & 0xFFFFFFFCUL; -+ regs->link = temp + 4UL; -+ return 2; -+ } -+ } while (0); -+ -+ do { /* PaX: patched PLT emulation #1 */ -+ unsigned int b; -+ -+ err = get_user(b, (unsigned int *)regs->nip); -+ -+ if (!err && (b & 0xFC000003U) == 0x48000000U) { -+ regs->nip += (((b | 0xFC000000UL) ^ 0x02000000UL) + 0x02000000UL); -+ return 3; -+ } -+ } while (0); -+ -+ do { /* PaX: unpatched PLT emulation #1 */ -+ unsigned int li, b; -+ -+ err = get_user(li, (unsigned int *)regs->nip); -+ err |= get_user(b, (unsigned int *)(regs->nip+4)); -+ -+ if (!err && (li & 0xFFFF0000U) == 0x39600000U && (b & 0xFC000003U) == 0x48000000U) { -+ unsigned int rlwinm, add, li2, addis2, mtctr, li3, addis3, bctr; -+ unsigned long addr = b | 0xFC000000UL; -+ -+ addr = regs->nip + 4 + ((addr ^ 0x02000000UL) + 0x02000000UL); -+ err = get_user(rlwinm, (unsigned int *)addr); -+ err |= get_user(add, (unsigned int *)(addr+4)); -+ err |= get_user(li2, (unsigned int *)(addr+8)); -+ err |= get_user(addis2, (unsigned int *)(addr+12)); -+ err |= get_user(mtctr, (unsigned int *)(addr+16)); -+ err |= get_user(li3, (unsigned int *)(addr+20)); -+ err |= get_user(addis3, (unsigned int *)(addr+24)); -+ err |= get_user(bctr, (unsigned int *)(addr+28)); -+ -+ if (err) -+ break; -+ -+ if (rlwinm == 0x556C083CU && -+ add == 0x7D6C5A14U && -+ (li2 & 0xFFFF0000U) == 0x39800000U && -+ (addis2 & 0xFFFF0000U) == 0x3D8C0000U && -+ mtctr == 0x7D8903A6U && -+ (li3 & 0xFFFF0000U) == 0x39800000U && -+ (addis3 & 0xFFFF0000U) == 0x3D8C0000U && -+ bctr == 0x4E800420U) -+ { -+ regs->gpr[PT_R11] = 3 * (((li | 0xFFFF0000UL) ^ 0x00008000UL) + 0x00008000UL); -+ regs->gpr[PT_R12] = (((li3 | 0xFFFF0000UL) ^ 0x00008000UL) + 0x00008000UL); -+ regs->gpr[PT_R12] += (addis3 & 0xFFFFU) << 16; -+ regs->ctr = (((li2 | 0xFFFF0000UL) ^ 0x00008000UL) + 0x00008000UL); -+ regs->ctr += (addis2 & 0xFFFFU) << 16; -+ regs->nip = regs->ctr; -+ return 4; -+ } -+ } -+ } while (0); -+ -+#if 0 -+ do { /* PaX: unpatched PLT emulation #2 */ -+ unsigned int lis, lwzu, b, bctr; -+ -+ err = get_user(lis, (unsigned int *)regs->nip); -+ err |= get_user(lwzu, (unsigned int *)(regs->nip+4)); -+ err |= get_user(b, (unsigned int *)(regs->nip+8)); -+ err |= get_user(bctr, (unsigned int *)(regs->nip+12)); -+ -+ if (err) -+ break; -+ -+ if ((lis & 0xFFFF0000U) == 0x39600000U && -+ (lwzu & 0xU) == 0xU && -+ (b & 0xFC000003U) == 0x48000000U && -+ bctr == 0x4E800420U) -+ { -+ unsigned int addis, addi, rlwinm, add, li2, addis2, mtctr, li3, addis3, bctr; -+ unsigned long addr = b | 0xFC000000UL; -+ -+ addr = regs->nip + 12 + ((addr ^ 0x02000000UL) + 0x02000000UL); -+ err = get_user(addis, (unsigned int *)addr); -+ err |= get_user(addi, (unsigned int *)(addr+4)); -+ err |= get_user(rlwinm, (unsigned int *)(addr+8)); -+ err |= get_user(add, (unsigned int *)(addr+12)); -+ err |= get_user(li2, (unsigned int *)(addr+16)); -+ err |= get_user(addis2, (unsigned int *)(addr+20)); -+ err |= get_user(mtctr, (unsigned int *)(addr+24)); -+ err |= get_user(li3, (unsigned int *)(addr+28)); -+ err |= get_user(addis3, (unsigned int *)(addr+32)); -+ err |= get_user(bctr, (unsigned int *)(addr+36)); -+ -+ if (err) -+ break; -+ -+ if ((addis & 0xFFFF0000U) == 0x3D6B0000U && -+ (addi & 0xFFFF0000U) == 0x396B0000U && -+ rlwinm == 0x556C083CU && -+ add == 0x7D6C5A14U && -+ (li2 & 0xFFFF0000U) == 0x39800000U && -+ (addis2 & 0xFFFF0000U) == 0x3D8C0000U && -+ mtctr == 0x7D8903A6U && -+ (li3 & 0xFFFF0000U) == 0x39800000U && -+ (addis3 & 0xFFFF0000U) == 0x3D8C0000U && -+ bctr == 0x4E800420U) -+ { -+ regs->gpr[PT_R11] = 3 * (((li | 0xFFFF0000UL) ^ 0x00008000UL) + 0x00008000UL); -+ regs->gpr[PT_R12] = (((li3 | 0xFFFF0000UL) ^ 0x00008000UL) + 0x00008000UL); -+ regs->gpr[PT_R12] += (addis3 & 0xFFFFU) << 16; -+ regs->ctr = (((li2 | 0xFFFF0000UL) ^ 0x00008000UL) + 0x00008000UL); -+ regs->ctr += (addis2 & 0xFFFFU) << 16; -+ regs->nip = regs->ctr; -+ return 4; -+ } -+ } -+ } while (0); -+#endif -+ -+ do { /* PaX: unpatched PLT emulation #3 */ -+ unsigned int li, b; -+ -+ err = get_user(li, (unsigned int *)regs->nip); -+ err |= get_user(b, (unsigned int *)(regs->nip+4)); -+ -+ if (!err && (li & 0xFFFF0000U) == 0x39600000U && (b & 0xFC000003U) == 0x48000000U) { -+ unsigned int addis, lwz, mtctr, bctr; -+ unsigned long addr = b | 0xFC000000UL; -+ -+ addr = regs->nip + 4 + ((addr ^ 0x02000000UL) + 0x02000000UL); -+ err = get_user(addis, (unsigned int *)addr); -+ err |= get_user(lwz, (unsigned int *)(addr+4)); -+ err |= get_user(mtctr, (unsigned int *)(addr+8)); -+ err |= get_user(bctr, (unsigned int *)(addr+12)); -+ -+ if (err) -+ break; -+ -+ if ((addis & 0xFFFF0000U) == 0x3D6B0000U && -+ (lwz & 0xFFFF0000U) == 0x816B0000U && -+ mtctr == 0x7D6903A6U && -+ bctr == 0x4E800420U) -+ { -+ unsigned int r11; -+ -+ addr = (addis << 16) + (((li | 0xFFFF0000UL) ^ 0x00008000UL) + 0x00008000UL); -+ addr += (((lwz | 0xFFFF0000UL) ^ 0x00008000UL) + 0x00008000UL); -+ -+ err = get_user(r11, (unsigned int *)addr); -+ if (err) -+ break; -+ -+ regs->gpr[PT_R11] = r11; -+ regs->ctr = r11; -+ regs->nip = r11; -+ return 4; -+ } -+ } -+ } while (0); -+#endif -+ -+#ifdef CONFIG_PAX_EMUSIGRT -+ do { /* PaX: sigreturn emulation */ -+ unsigned int li, sc; -+ -+ err = get_user(li, (unsigned int *)regs->nip); -+ err |= get_user(sc, (unsigned int *)(regs->nip+4)); -+ -+ if (!err && li == 0x38000000U + __NR_sigreturn && sc == 0x44000002U) { -+ struct vm_area_struct *vma; -+ unsigned long call_syscall; -+ -+ down_read(¤t->mm->mmap_sem); -+ call_syscall = current->mm->call_syscall; -+ up_read(¤t->mm->mmap_sem); -+ if (likely(call_syscall)) -+ goto emulate; -+ -+ vma = kmem_cache_zalloc(vm_area_cachep, GFP_KERNEL); -+ -+ down_write(¤t->mm->mmap_sem); -+ if (current->mm->call_syscall) { -+ call_syscall = current->mm->call_syscall; -+ up_write(¤t->mm->mmap_sem); -+ if (vma) -+ kmem_cache_free(vm_area_cachep, vma); -+ goto emulate; -+ } -+ -+ call_syscall = get_unmapped_area(NULL, 0UL, PAGE_SIZE, 0UL, MAP_PRIVATE); -+ if (!vma || (call_syscall & ~PAGE_MASK)) { -+ up_write(¤t->mm->mmap_sem); -+ if (vma) -+ kmem_cache_free(vm_area_cachep, vma); -+ return 1; -+ } -+ -+ if (pax_insert_vma(vma, call_syscall)) { -+ up_write(¤t->mm->mmap_sem); -+ kmem_cache_free(vm_area_cachep, vma); -+ return 1; -+ } -+ -+ current->mm->call_syscall = call_syscall; -+ up_write(¤t->mm->mmap_sem); -+ -+emulate: -+ regs->gpr[PT_R0] = __NR_sigreturn; -+ regs->nip = call_syscall; -+ return 5; -+ } -+ } while (0); -+ -+ do { /* PaX: rt_sigreturn emulation */ -+ unsigned int li, sc; -+ -+ err = get_user(li, (unsigned int *)regs->nip); -+ err |= get_user(sc, (unsigned int *)(regs->nip+4)); -+ -+ if (!err && li == 0x38000000U + __NR_rt_sigreturn && sc == 0x44000002U) { -+ struct vm_area_struct *vma; -+ unsigned int call_syscall; -+ -+ down_read(¤t->mm->mmap_sem); -+ call_syscall = current->mm->call_syscall; -+ up_read(¤t->mm->mmap_sem); -+ if (likely(call_syscall)) -+ goto rt_emulate; -+ -+ vma = kmem_cache_zalloc(vm_area_cachep, GFP_KERNEL); -+ -+ down_write(¤t->mm->mmap_sem); -+ if (current->mm->call_syscall) { -+ call_syscall = current->mm->call_syscall; -+ up_write(¤t->mm->mmap_sem); -+ if (vma) -+ kmem_cache_free(vm_area_cachep, vma); -+ goto rt_emulate; -+ } -+ -+ call_syscall = get_unmapped_area(NULL, 0UL, PAGE_SIZE, 0UL, MAP_PRIVATE); -+ if (!vma || (call_syscall & ~PAGE_MASK)) { -+ up_write(¤t->mm->mmap_sem); -+ if (vma) -+ kmem_cache_free(vm_area_cachep, vma); -+ return 1; -+ } -+ -+ if (pax_insert_vma(vma, call_syscall)) { -+ up_write(¤t->mm->mmap_sem); -+ kmem_cache_free(vm_area_cachep, vma); -+ return 1; -+ } -+ -+ current->mm->call_syscall = call_syscall; -+ up_write(¤t->mm->mmap_sem); -+ -+rt_emulate: -+ regs->gpr[PT_R0] = __NR_rt_sigreturn; -+ regs->nip = call_syscall; -+ return 6; -+ } -+ } while (0); -+#endif -+ -+ return 1; -+} -+ -+void pax_report_insns(void *pc, void *sp) -+{ -+ unsigned long i; -+ -+ printk(KERN_ERR "PAX: bytes at PC: "); -+ for (i = 0; i < 5; i++) { -+ unsigned int c; -+ if (get_user(c, (unsigned int *)pc+i)) -+ printk(KERN_CONT "???????? "); -+ else -+ printk(KERN_CONT "%08x ", c); -+ } -+ printk("\n"); -+} -+#endif -+ - /* - * Check whether the instruction at regs->nip is a store using - * an update addressing form which will update r1. -@@ -132,7 +493,7 @@ int __kprobes do_page_fault(struct pt_re - * indicate errors in DSISR but can validly be set in SRR1. - */ - if (trap == 0x400) -- error_code &= 0x48200000; -+ error_code &= 0x58200000; - else - is_write = error_code & DSISR_ISSTORE; - #else -@@ -331,6 +692,37 @@ bad_area: - bad_area_nosemaphore: - /* User mode accesses cause a SIGSEGV */ - if (user_mode(regs)) { -+ -+#ifdef CONFIG_PAX_PAGEEXEC -+ if (mm->pax_flags & MF_PAX_PAGEEXEC) { -+#ifdef CONFIG_PPC64 -+ if (is_exec && (error_code & DSISR_PROTFAULT)) { -+#else -+ if (is_exec && regs->nip == address) { -+#endif -+ switch (pax_handle_fetch_fault(regs)) { -+ -+#ifdef CONFIG_PAX_EMUPLT -+ case 2: -+ case 3: -+ case 4: -+ return 0; -+#endif -+ -+#ifdef CONFIG_PAX_EMUSIGRT -+ case 5: -+ case 6: -+ return 0; -+#endif -+ -+ } -+ -+ pax_report_fault(regs, (void *)regs->nip, (void *)regs->gpr[PT_R1]); -+ do_group_exit(SIGKILL); -+ } -+ } -+#endif -+ - _exception(SIGSEGV, regs, code, address); - return 0; - } -diff -urNp linux-2.6.28.8/arch/powerpc/mm/mmap.c linux-2.6.28.8/arch/powerpc/mm/mmap.c ---- linux-2.6.28.8/arch/powerpc/mm/mmap.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/powerpc/mm/mmap.c 2009-02-21 09:37:48.000000000 -0500 -@@ -75,10 +75,22 @@ void arch_pick_mmap_layout(struct mm_str - */ - if (mmap_is_legacy()) { - mm->mmap_base = TASK_UNMAPPED_BASE; -+ -+#ifdef CONFIG_PAX_RANDMMAP -+ if (mm->pax_flags & MF_PAX_RANDMMAP) -+ mm->mmap_base += mm->delta_mmap; -+#endif -+ - mm->get_unmapped_area = arch_get_unmapped_area; - mm->unmap_area = arch_unmap_area; - } else { - mm->mmap_base = mmap_base(); -+ -+#ifdef CONFIG_PAX_RANDMMAP -+ if (mm->pax_flags & MF_PAX_RANDMMAP) -+ mm->mmap_base -= mm->delta_mmap + mm->delta_stack; -+#endif -+ - mm->get_unmapped_area = arch_get_unmapped_area_topdown; - mm->unmap_area = arch_unmap_area_topdown; - } -diff -urNp linux-2.6.28.8/arch/s390/include/asm/kmap_types.h linux-2.6.28.8/arch/s390/include/asm/kmap_types.h ---- linux-2.6.28.8/arch/s390/include/asm/kmap_types.h 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/s390/include/asm/kmap_types.h 2009-02-21 09:37:48.000000000 -0500 -@@ -16,6 +16,7 @@ enum km_type { - KM_IRQ1, - KM_SOFTIRQ0, - KM_SOFTIRQ1, -+ KM_CLEARPAGE, - KM_TYPE_NR - }; - -diff -urNp linux-2.6.28.8/arch/s390/kernel/module.c linux-2.6.28.8/arch/s390/kernel/module.c ---- linux-2.6.28.8/arch/s390/kernel/module.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/s390/kernel/module.c 2009-02-21 09:37:48.000000000 -0500 -@@ -166,11 +166,11 @@ module_frob_arch_sections(Elf_Ehdr *hdr, - - /* Increase core size by size of got & plt and set start - offsets for got and plt. */ -- me->core_size = ALIGN(me->core_size, 4); -- me->arch.got_offset = me->core_size; -- me->core_size += me->arch.got_size; -- me->arch.plt_offset = me->core_size; -- me->core_size += me->arch.plt_size; -+ me->core_size_rw = ALIGN(me->core_size_rw, 4); -+ me->arch.got_offset = me->core_size_rw; -+ me->core_size_rw += me->arch.got_size; -+ me->arch.plt_offset = me->core_size_rx; -+ me->core_size_rx += me->arch.plt_size; - return 0; - } - -@@ -256,7 +256,7 @@ apply_rela(Elf_Rela *rela, Elf_Addr base - if (info->got_initialized == 0) { - Elf_Addr *gotent; - -- gotent = me->module_core + me->arch.got_offset + -+ gotent = me->module_core_rw + me->arch.got_offset + - info->got_offset; - *gotent = val; - info->got_initialized = 1; -@@ -280,7 +280,7 @@ apply_rela(Elf_Rela *rela, Elf_Addr base - else if (r_type == R_390_GOTENT || - r_type == R_390_GOTPLTENT) - *(unsigned int *) loc = -- (val + (Elf_Addr) me->module_core - loc) >> 1; -+ (val + (Elf_Addr) me->module_core_rw - loc) >> 1; - else if (r_type == R_390_GOT64 || - r_type == R_390_GOTPLT64) - *(unsigned long *) loc = val; -@@ -294,7 +294,7 @@ apply_rela(Elf_Rela *rela, Elf_Addr base - case R_390_PLTOFF64: /* 16 bit offset from GOT to PLT. */ - if (info->plt_initialized == 0) { - unsigned int *ip; -- ip = me->module_core + me->arch.plt_offset + -+ ip = me->module_core_rx + me->arch.plt_offset + - info->plt_offset; - #ifndef CONFIG_64BIT - ip[0] = 0x0d105810; /* basr 1,0; l 1,6(1); br 1 */ -@@ -316,7 +316,7 @@ apply_rela(Elf_Rela *rela, Elf_Addr base - val = me->arch.plt_offset - me->arch.got_offset + - info->plt_offset + rela->r_addend; - else -- val = (Elf_Addr) me->module_core + -+ val = (Elf_Addr) me->module_core_rx + - me->arch.plt_offset + info->plt_offset + - rela->r_addend - loc; - if (r_type == R_390_PLT16DBL) -@@ -336,7 +336,7 @@ apply_rela(Elf_Rela *rela, Elf_Addr base - case R_390_GOTOFF32: /* 32 bit offset to GOT. */ - case R_390_GOTOFF64: /* 64 bit offset to GOT. */ - val = val + rela->r_addend - -- ((Elf_Addr) me->module_core + me->arch.got_offset); -+ ((Elf_Addr) me->module_core_rw + me->arch.got_offset); - if (r_type == R_390_GOTOFF16) - *(unsigned short *) loc = val; - else if (r_type == R_390_GOTOFF32) -@@ -346,7 +346,7 @@ apply_rela(Elf_Rela *rela, Elf_Addr base - break; - case R_390_GOTPC: /* 32 bit PC relative offset to GOT. */ - case R_390_GOTPCDBL: /* 32 bit PC rel. off. to GOT shifted by 1. */ -- val = (Elf_Addr) me->module_core + me->arch.got_offset + -+ val = (Elf_Addr) me->module_core_rw + me->arch.got_offset + - rela->r_addend - loc; - if (r_type == R_390_GOTPC) - *(unsigned int *) loc = val; -diff -urNp linux-2.6.28.8/arch/sh/include/asm/kmap_types.h linux-2.6.28.8/arch/sh/include/asm/kmap_types.h ---- linux-2.6.28.8/arch/sh/include/asm/kmap_types.h 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/sh/include/asm/kmap_types.h 2009-02-21 09:37:48.000000000 -0500 -@@ -24,7 +24,8 @@ D(9) KM_IRQ0, - D(10) KM_IRQ1, - D(11) KM_SOFTIRQ0, - D(12) KM_SOFTIRQ1, --D(13) KM_TYPE_NR -+D(13) KM_CLEARPAGE, -+D(14) KM_TYPE_NR - }; - - #undef D -diff -urNp linux-2.6.28.8/arch/sparc/include/asm/elf_32.h linux-2.6.28.8/arch/sparc/include/asm/elf_32.h ---- linux-2.6.28.8/arch/sparc/include/asm/elf_32.h 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/sparc/include/asm/elf_32.h 2009-02-21 09:37:48.000000000 -0500 -@@ -116,6 +116,13 @@ typedef struct { - - #define ELF_ET_DYN_BASE (TASK_UNMAPPED_BASE) - -+#ifdef CONFIG_PAX_ASLR -+#define PAX_ELF_ET_DYN_BASE 0x10000UL -+ -+#define PAX_DELTA_MMAP_LEN 16 -+#define PAX_DELTA_STACK_LEN 16 -+#endif -+ - /* This yields a mask that user programs can use to figure out what - instruction set this cpu supports. This can NOT be done in userspace - on Sparc. */ -diff -urNp linux-2.6.28.8/arch/sparc/include/asm/elf_64.h linux-2.6.28.8/arch/sparc/include/asm/elf_64.h ---- linux-2.6.28.8/arch/sparc/include/asm/elf_64.h 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/sparc/include/asm/elf_64.h 2009-02-21 09:37:48.000000000 -0500 -@@ -163,6 +163,12 @@ typedef struct { - #define ELF_ET_DYN_BASE 0x0000010000000000UL - #define COMPAT_ELF_ET_DYN_BASE 0x0000000070000000UL - -+#ifdef CONFIG_PAX_ASLR -+#define PAX_ELF_ET_DYN_BASE (test_thread_flag(TIF_32BIT) ? 0x10000UL : 0x100000UL) -+ -+#define PAX_DELTA_MMAP_LEN (test_thread_flag(TIF_32BIT) ? 14 : 28 ) -+#define PAX_DELTA_STACK_LEN (test_thread_flag(TIF_32BIT) ? 15 : 29 ) -+#endif - - /* This yields a mask that user programs can use to figure out what - instruction set this cpu supports. */ -diff -urNp linux-2.6.28.8/arch/sparc/include/asm/kmap_types.h linux-2.6.28.8/arch/sparc/include/asm/kmap_types.h ---- linux-2.6.28.8/arch/sparc/include/asm/kmap_types.h 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/sparc/include/asm/kmap_types.h 2009-02-21 09:37:48.000000000 -0500 -@@ -19,6 +19,7 @@ enum km_type { - KM_IRQ1, - KM_SOFTIRQ0, - KM_SOFTIRQ1, -+ KM_CLEARPAGE, - KM_TYPE_NR - }; - -diff -urNp linux-2.6.28.8/arch/sparc/include/asm/pgtable_32.h linux-2.6.28.8/arch/sparc/include/asm/pgtable_32.h ---- linux-2.6.28.8/arch/sparc/include/asm/pgtable_32.h 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/sparc/include/asm/pgtable_32.h 2009-02-21 09:37:48.000000000 -0500 -@@ -43,6 +43,13 @@ BTFIXUPDEF_SIMM13(user_ptrs_per_pgd) - BTFIXUPDEF_INT(page_none) - BTFIXUPDEF_INT(page_copy) - BTFIXUPDEF_INT(page_readonly) -+ -+#ifdef CONFIG_PAX_PAGEEXEC -+BTFIXUPDEF_INT(page_shared_noexec) -+BTFIXUPDEF_INT(page_copy_noexec) -+BTFIXUPDEF_INT(page_readonly_noexec) -+#endif -+ - BTFIXUPDEF_INT(page_kernel) - - #define PMD_SHIFT SUN4C_PMD_SHIFT -@@ -64,6 +71,16 @@ extern pgprot_t PAGE_SHARED; - #define PAGE_COPY __pgprot(BTFIXUP_INT(page_copy)) - #define PAGE_READONLY __pgprot(BTFIXUP_INT(page_readonly)) - -+#ifdef CONFIG_PAX_PAGEEXEC -+extern pgprot_t PAGE_SHARED_NOEXEC; -+# define PAGE_COPY_NOEXEC __pgprot(BTFIXUP_INT(page_copy_noexec)) -+# define PAGE_READONLY_NOEXEC __pgprot(BTFIXUP_INT(page_readonly_noexec)) -+#else -+# define PAGE_SHARED_NOEXEC PAGE_SHARED -+# define PAGE_COPY_NOEXEC PAGE_COPY -+# define PAGE_READONLY_NOEXEC PAGE_READONLY -+#endif -+ - extern unsigned long page_kernel; - - #ifdef MODULE -diff -urNp linux-2.6.28.8/arch/sparc/include/asm/pgtsrmmu.h linux-2.6.28.8/arch/sparc/include/asm/pgtsrmmu.h ---- linux-2.6.28.8/arch/sparc/include/asm/pgtsrmmu.h 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/sparc/include/asm/pgtsrmmu.h 2009-02-21 09:37:48.000000000 -0500 -@@ -115,6 +115,13 @@ - SRMMU_EXEC | SRMMU_REF) - #define SRMMU_PAGE_RDONLY __pgprot(SRMMU_VALID | SRMMU_CACHE | \ - SRMMU_EXEC | SRMMU_REF) -+ -+#ifdef CONFIG_PAX_PAGEEXEC -+#define SRMMU_PAGE_SHARED_NOEXEC __pgprot(SRMMU_VALID | SRMMU_CACHE | SRMMU_WRITE | SRMMU_REF) -+#define SRMMU_PAGE_COPY_NOEXEC __pgprot(SRMMU_VALID | SRMMU_CACHE | SRMMU_REF) -+#define SRMMU_PAGE_RDONLY_NOEXEC __pgprot(SRMMU_VALID | SRMMU_CACHE | SRMMU_REF) -+#endif -+ - #define SRMMU_PAGE_KERNEL __pgprot(SRMMU_VALID | SRMMU_CACHE | SRMMU_PRIV | \ - SRMMU_DIRTY | SRMMU_REF) - -diff -urNp linux-2.6.28.8/arch/sparc/kernel/sys_sparc.c linux-2.6.28.8/arch/sparc/kernel/sys_sparc.c ---- linux-2.6.28.8/arch/sparc/kernel/sys_sparc.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/sparc/kernel/sys_sparc.c 2009-02-21 09:37:48.000000000 -0500 -@@ -56,7 +56,7 @@ unsigned long arch_get_unmapped_area(str - if (ARCH_SUN4C && len > 0x20000000) - return -ENOMEM; - if (!addr) -- addr = TASK_UNMAPPED_BASE; -+ addr = current->mm->mmap_base; - - if (flags & MAP_SHARED) - addr = COLOUR_ALIGN(addr); -diff -urNp linux-2.6.28.8/arch/sparc/Makefile linux-2.6.28.8/arch/sparc/Makefile ---- linux-2.6.28.8/arch/sparc/Makefile 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/sparc/Makefile 2009-02-21 09:37:48.000000000 -0500 -@@ -37,7 +37,7 @@ drivers-$(CONFIG_OPROFILE) += arch/sparc - # Renaming is done to avoid confusing pattern matching rules in 2.5.45 (multy-) - INIT_Y := $(patsubst %/, %/built-in.o, $(init-y)) - CORE_Y := $(core-y) --CORE_Y += kernel/ mm/ fs/ ipc/ security/ crypto/ block/ -+CORE_Y += kernel/ mm/ fs/ ipc/ security/ crypto/ block/ grsecurity/ - CORE_Y := $(patsubst %/, %/built-in.o, $(CORE_Y)) - DRIVERS_Y := $(patsubst %/, %/built-in.o, $(drivers-y)) - NET_Y := $(patsubst %/, %/built-in.o, $(net-y)) -diff -urNp linux-2.6.28.8/arch/sparc/mm/fault.c linux-2.6.28.8/arch/sparc/mm/fault.c ---- linux-2.6.28.8/arch/sparc/mm/fault.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/sparc/mm/fault.c 2009-02-21 09:37:48.000000000 -0500 -@@ -21,6 +21,9 @@ - #include <linux/interrupt.h> - #include <linux/module.h> - #include <linux/kdebug.h> -+#include <linux/slab.h> -+#include <linux/pagemap.h> -+#include <linux/compiler.h> - - #include <asm/system.h> - #include <asm/page.h> -@@ -167,6 +170,249 @@ static unsigned long compute_si_addr(str - return safe_compute_effective_address(regs, insn); - } - -+#ifdef CONFIG_PAX_PAGEEXEC -+void pax_emuplt_close(struct vm_area_struct *vma) -+{ -+ vma->vm_mm->call_dl_resolve = 0UL; -+} -+ -+static int pax_emuplt_fault(struct vm_area_struct *vma, struct vm_fault *vmf) -+{ -+ unsigned int *kaddr; -+ -+ vmf->page = alloc_page(GFP_HIGHUSER); -+ if (!vmf->page) -+ return VM_FAULT_OOM; -+ -+ kaddr = kmap(vmf->page); -+ memset(kaddr, 0, PAGE_SIZE); -+ kaddr[0] = 0x9DE3BFA8U; /* save */ -+ flush_dcache_page(vmf->page); -+ kunmap(vmf->page); -+ return VM_FAULT_MAJOR; -+} -+ -+static struct vm_operations_struct pax_vm_ops = { -+ .close = pax_emuplt_close, -+ .fault = pax_emuplt_fault -+}; -+ -+static int pax_insert_vma(struct vm_area_struct *vma, unsigned long addr) -+{ -+ int ret; -+ -+ vma->vm_mm = current->mm; -+ vma->vm_start = addr; -+ vma->vm_end = addr + PAGE_SIZE; -+ vma->vm_flags = VM_READ | VM_EXEC | VM_MAYREAD | VM_MAYEXEC; -+ vma->vm_page_prot = vm_get_page_prot(vma->vm_flags); -+ vma->vm_ops = &pax_vm_ops; -+ -+ ret = insert_vm_struct(current->mm, vma); -+ if (ret) -+ return ret; -+ -+ ++current->mm->total_vm; -+ return 0; -+} -+ -+/* -+ * PaX: decide what to do with offenders (regs->pc = fault address) -+ * -+ * returns 1 when task should be killed -+ * 2 when patched PLT trampoline was detected -+ * 3 when unpatched PLT trampoline was detected -+ */ -+static int pax_handle_fetch_fault(struct pt_regs *regs) -+{ -+ -+#ifdef CONFIG_PAX_EMUPLT -+ int err; -+ -+ do { /* PaX: patched PLT emulation #1 */ -+ unsigned int sethi1, sethi2, jmpl; -+ -+ err = get_user(sethi1, (unsigned int *)regs->pc); -+ err |= get_user(sethi2, (unsigned int *)(regs->pc+4)); -+ err |= get_user(jmpl, (unsigned int *)(regs->pc+8)); -+ -+ if (err) -+ break; -+ -+ if ((sethi1 & 0xFFC00000U) == 0x03000000U && -+ (sethi2 & 0xFFC00000U) == 0x03000000U && -+ (jmpl & 0xFFFFE000U) == 0x81C06000U) -+ { -+ unsigned int addr; -+ -+ regs->u_regs[UREG_G1] = (sethi2 & 0x003FFFFFU) << 10; -+ addr = regs->u_regs[UREG_G1]; -+ addr += (((jmpl | 0xFFFFE000U) ^ 0x00001000U) + 0x00001000U); -+ regs->pc = addr; -+ regs->npc = addr+4; -+ return 2; -+ } -+ } while (0); -+ -+ { /* PaX: patched PLT emulation #2 */ -+ unsigned int ba; -+ -+ err = get_user(ba, (unsigned int *)regs->pc); -+ -+ if (!err && (ba & 0xFFC00000U) == 0x30800000U) { -+ unsigned int addr; -+ -+ addr = regs->pc + ((((ba | 0xFFC00000U) ^ 0x00200000U) + 0x00200000U) << 2); -+ regs->pc = addr; -+ regs->npc = addr+4; -+ return 2; -+ } -+ } -+ -+ do { /* PaX: patched PLT emulation #3 */ -+ unsigned int sethi, jmpl, nop; -+ -+ err = get_user(sethi, (unsigned int *)regs->pc); -+ err |= get_user(jmpl, (unsigned int *)(regs->pc+4)); -+ err |= get_user(nop, (unsigned int *)(regs->pc+8)); -+ -+ if (err) -+ break; -+ -+ if ((sethi & 0xFFC00000U) == 0x03000000U && -+ (jmpl & 0xFFFFE000U) == 0x81C06000U && -+ nop == 0x01000000U) -+ { -+ unsigned int addr; -+ -+ addr = (sethi & 0x003FFFFFU) << 10; -+ regs->u_regs[UREG_G1] = addr; -+ addr += (((jmpl | 0xFFFFE000U) ^ 0x00001000U) + 0x00001000U); -+ regs->pc = addr; -+ regs->npc = addr+4; -+ return 2; -+ } -+ } while (0); -+ -+ do { /* PaX: unpatched PLT emulation step 1 */ -+ unsigned int sethi, ba, nop; -+ -+ err = get_user(sethi, (unsigned int *)regs->pc); -+ err |= get_user(ba, (unsigned int *)(regs->pc+4)); -+ err |= get_user(nop, (unsigned int *)(regs->pc+8)); -+ -+ if (err) -+ break; -+ -+ if ((sethi & 0xFFC00000U) == 0x03000000U && -+ ((ba & 0xFFC00000U) == 0x30800000U || (ba & 0xFFF80000U) == 0x30680000U) && -+ nop == 0x01000000U) -+ { -+ unsigned int addr, save, call; -+ -+ if ((ba & 0xFFC00000U) == 0x30800000U) -+ addr = regs->pc + 4 + ((((ba | 0xFFC00000U) ^ 0x00200000U) + 0x00200000U) << 2); -+ else -+ addr = regs->pc + 4 + ((((ba | 0xFFF80000U) ^ 0x00040000U) + 0x00040000U) << 2); -+ -+ err = get_user(save, (unsigned int *)addr); -+ err |= get_user(call, (unsigned int *)(addr+4)); -+ err |= get_user(nop, (unsigned int *)(addr+8)); -+ if (err) -+ break; -+ -+ if (save == 0x9DE3BFA8U && -+ (call & 0xC0000000U) == 0x40000000U && -+ nop == 0x01000000U) -+ { -+ struct vm_area_struct *vma; -+ unsigned long call_dl_resolve; -+ -+ down_read(¤t->mm->mmap_sem); -+ call_dl_resolve = current->mm->call_dl_resolve; -+ up_read(¤t->mm->mmap_sem); -+ if (likely(call_dl_resolve)) -+ goto emulate; -+ -+ vma = kmem_cache_zalloc(vm_area_cachep, GFP_KERNEL); -+ -+ down_write(¤t->mm->mmap_sem); -+ if (current->mm->call_dl_resolve) { -+ call_dl_resolve = current->mm->call_dl_resolve; -+ up_write(¤t->mm->mmap_sem); -+ if (vma) -+ kmem_cache_free(vm_area_cachep, vma); -+ goto emulate; -+ } -+ -+ call_dl_resolve = get_unmapped_area(NULL, 0UL, PAGE_SIZE, 0UL, MAP_PRIVATE); -+ if (!vma || (call_dl_resolve & ~PAGE_MASK)) { -+ up_write(¤t->mm->mmap_sem); -+ if (vma) -+ kmem_cache_free(vm_area_cachep, vma); -+ return 1; -+ } -+ -+ if (pax_insert_vma(vma, call_dl_resolve)) { -+ up_write(¤t->mm->mmap_sem); -+ kmem_cache_free(vm_area_cachep, vma); -+ return 1; -+ } -+ -+ current->mm->call_dl_resolve = call_dl_resolve; -+ up_write(¤t->mm->mmap_sem); -+ -+emulate: -+ regs->u_regs[UREG_G1] = (sethi & 0x003FFFFFU) << 10; -+ regs->pc = call_dl_resolve; -+ regs->npc = addr+4; -+ return 3; -+ } -+ } -+ } while (0); -+ -+ do { /* PaX: unpatched PLT emulation step 2 */ -+ unsigned int save, call, nop; -+ -+ err = get_user(save, (unsigned int *)(regs->pc-4)); -+ err |= get_user(call, (unsigned int *)regs->pc); -+ err |= get_user(nop, (unsigned int *)(regs->pc+4)); -+ if (err) -+ break; -+ -+ if (save == 0x9DE3BFA8U && -+ (call & 0xC0000000U) == 0x40000000U && -+ nop == 0x01000000U) -+ { -+ unsigned int dl_resolve = regs->pc + ((((call | 0xC0000000U) ^ 0x20000000U) + 0x20000000U) << 2); -+ -+ regs->u_regs[UREG_RETPC] = regs->pc; -+ regs->pc = dl_resolve; -+ regs->npc = dl_resolve+4; -+ return 3; -+ } -+ } while (0); -+#endif -+ -+ return 1; -+} -+ -+void pax_report_insns(void *pc, void *sp) -+{ -+ unsigned long i; -+ -+ printk(KERN_ERR "PAX: bytes at PC: "); -+ for (i = 0; i < 5; i++) { -+ unsigned int c; -+ if (get_user(c, (unsigned int *)pc+i)) -+ printk(KERN_CONT "???????? "); -+ else -+ printk(KERN_CONT "%08x ", c); -+ } -+ printk("\n"); -+} -+#endif -+ - asmlinkage void do_sparc_fault(struct pt_regs *regs, int text_fault, int write, - unsigned long address) - { -@@ -231,6 +477,24 @@ good_area: - if(!(vma->vm_flags & VM_WRITE)) - goto bad_area; - } else { -+ -+#ifdef CONFIG_PAX_PAGEEXEC -+ if ((mm->pax_flags & MF_PAX_PAGEEXEC) && text_fault && !(vma->vm_flags & VM_EXEC)) { -+ up_read(&mm->mmap_sem); -+ switch (pax_handle_fetch_fault(regs)) { -+ -+#ifdef CONFIG_PAX_EMUPLT -+ case 2: -+ case 3: -+ return; -+#endif -+ -+ } -+ pax_report_fault(regs, (void *)regs->pc, (void *)regs->u_regs[UREG_FP]); -+ do_group_exit(SIGKILL); -+ } -+#endif -+ - /* Allow reads even for write-only mappings */ - if(!(vma->vm_flags & (VM_READ | VM_EXEC))) - goto bad_area; -diff -urNp linux-2.6.28.8/arch/sparc/mm/init.c linux-2.6.28.8/arch/sparc/mm/init.c ---- linux-2.6.28.8/arch/sparc/mm/init.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/sparc/mm/init.c 2009-02-21 09:37:48.000000000 -0500 -@@ -313,6 +313,9 @@ extern void device_scan(void); - pgprot_t PAGE_SHARED __read_mostly; - EXPORT_SYMBOL(PAGE_SHARED); - -+pgprot_t PAGE_SHARED_NOEXEC __read_mostly; -+EXPORT_SYMBOL(PAGE_SHARED_NOEXEC); -+ - void __init paging_init(void) - { - switch(sparc_cpu_model) { -@@ -338,17 +341,17 @@ void __init paging_init(void) - - /* Initialize the protection map with non-constant, MMU dependent values. */ - protection_map[0] = PAGE_NONE; -- protection_map[1] = PAGE_READONLY; -- protection_map[2] = PAGE_COPY; -- protection_map[3] = PAGE_COPY; -+ protection_map[1] = PAGE_READONLY_NOEXEC; -+ protection_map[2] = PAGE_COPY_NOEXEC; -+ protection_map[3] = PAGE_COPY_NOEXEC; - protection_map[4] = PAGE_READONLY; - protection_map[5] = PAGE_READONLY; - protection_map[6] = PAGE_COPY; - protection_map[7] = PAGE_COPY; - protection_map[8] = PAGE_NONE; -- protection_map[9] = PAGE_READONLY; -- protection_map[10] = PAGE_SHARED; -- protection_map[11] = PAGE_SHARED; -+ protection_map[9] = PAGE_READONLY_NOEXEC; -+ protection_map[10] = PAGE_SHARED_NOEXEC; -+ protection_map[11] = PAGE_SHARED_NOEXEC; - protection_map[12] = PAGE_READONLY; - protection_map[13] = PAGE_READONLY; - protection_map[14] = PAGE_SHARED; -diff -urNp linux-2.6.28.8/arch/sparc/mm/srmmu.c linux-2.6.28.8/arch/sparc/mm/srmmu.c ---- linux-2.6.28.8/arch/sparc/mm/srmmu.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/sparc/mm/srmmu.c 2009-02-21 09:37:48.000000000 -0500 -@@ -2162,6 +2162,13 @@ void __init ld_mmu_srmmu(void) - PAGE_SHARED = pgprot_val(SRMMU_PAGE_SHARED); - BTFIXUPSET_INT(page_copy, pgprot_val(SRMMU_PAGE_COPY)); - BTFIXUPSET_INT(page_readonly, pgprot_val(SRMMU_PAGE_RDONLY)); -+ -+#ifdef CONFIG_PAX_PAGEEXEC -+ PAGE_SHARED_NOEXEC = pgprot_val(SRMMU_PAGE_SHARED_NOEXEC); -+ BTFIXUPSET_INT(page_copy_noexec, pgprot_val(SRMMU_PAGE_COPY_NOEXEC)); -+ BTFIXUPSET_INT(page_readonly_noexec, pgprot_val(SRMMU_PAGE_RDONLY_NOEXEC)); -+#endif -+ - BTFIXUPSET_INT(page_kernel, pgprot_val(SRMMU_PAGE_KERNEL)); - page_kernel = pgprot_val(SRMMU_PAGE_KERNEL); - -diff -urNp linux-2.6.28.8/arch/sparc64/kernel/Makefile linux-2.6.28.8/arch/sparc64/kernel/Makefile ---- linux-2.6.28.8/arch/sparc64/kernel/Makefile 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/sparc64/kernel/Makefile 2009-02-21 09:37:48.000000000 -0500 -@@ -3,7 +3,7 @@ - # - - EXTRA_AFLAGS := -ansi --EXTRA_CFLAGS := -Werror -+#EXTRA_CFLAGS := -Werror - - CFLAGS_REMOVE_ftrace.o = -pg - -diff -urNp linux-2.6.28.8/arch/sparc64/kernel/sys_sparc.c linux-2.6.28.8/arch/sparc64/kernel/sys_sparc.c ---- linux-2.6.28.8/arch/sparc64/kernel/sys_sparc.c 2009-02-08 00:54:27.000000000 -0500 -+++ linux-2.6.28.8/arch/sparc64/kernel/sys_sparc.c 2009-02-21 09:37:48.000000000 -0500 -@@ -124,7 +124,7 @@ unsigned long arch_get_unmapped_area(str - /* We do not accept a shared mapping if it would violate - * cache aliasing constraints. - */ -- if ((flags & MAP_SHARED) && -+ if ((filp || (flags & MAP_SHARED)) && - ((addr - (pgoff << PAGE_SHIFT)) & (SHMLBA - 1))) - return -EINVAL; - return addr; -@@ -139,6 +139,10 @@ unsigned long arch_get_unmapped_area(str - if (filp || (flags & MAP_SHARED)) - do_color_align = 1; - -+#ifdef CONFIG_PAX_RANDMMAP -+ if (!(mm->pax_flags & MF_PAX_RANDMMAP)) -+#endif -+ - if (addr) { - if (do_color_align) - addr = COLOUR_ALIGN(addr, pgoff); -@@ -152,9 +156,9 @@ unsigned long arch_get_unmapped_area(str - } - - if (len > mm->cached_hole_size) { -- start_addr = addr = mm->free_area_cache; -+ start_addr = addr = mm->free_area_cache; - } else { -- start_addr = addr = TASK_UNMAPPED_BASE; -+ start_addr = addr = mm->mmap_base; - mm->cached_hole_size = 0; - } - -@@ -174,8 +178,8 @@ full_search: - vma = find_vma(mm, VA_EXCLUDE_END); - } - if (unlikely(task_size < addr)) { -- if (start_addr != TASK_UNMAPPED_BASE) { -- start_addr = addr = TASK_UNMAPPED_BASE; -+ if (start_addr != mm->mmap_base) { -+ start_addr = addr = mm->mmap_base; - mm->cached_hole_size = 0; - goto full_search; - } -@@ -215,7 +219,7 @@ arch_get_unmapped_area_topdown(struct fi - /* We do not accept a shared mapping if it would violate - * cache aliasing constraints. - */ -- if ((flags & MAP_SHARED) && -+ if ((filp || (flags & MAP_SHARED)) && - ((addr - (pgoff << PAGE_SHIFT)) & (SHMLBA - 1))) - return -EINVAL; - return addr; -@@ -378,6 +382,12 @@ void arch_pick_mmap_layout(struct mm_str - current->signal->rlim[RLIMIT_STACK].rlim_cur == RLIM_INFINITY || - sysctl_legacy_va_layout) { - mm->mmap_base = TASK_UNMAPPED_BASE + random_factor; -+ -+#ifdef CONFIG_PAX_RANDMMAP -+ if (mm->pax_flags & MF_PAX_RANDMMAP) -+ mm->mmap_base += mm->delta_mmap; -+#endif -+ - mm->get_unmapped_area = arch_get_unmapped_area; - mm->unmap_area = arch_unmap_area; - } else { -@@ -392,6 +402,12 @@ void arch_pick_mmap_layout(struct mm_str - gap = (task_size / 6 * 5); - - mm->mmap_base = PAGE_ALIGN(task_size - gap - random_factor); -+ -+#ifdef CONFIG_PAX_RANDMMAP -+ if (mm->pax_flags & MF_PAX_RANDMMAP) -+ mm->mmap_base -= mm->delta_mmap + mm->delta_stack; -+#endif -+ - mm->get_unmapped_area = arch_get_unmapped_area_topdown; - mm->unmap_area = arch_unmap_area_topdown; - } -diff -urNp linux-2.6.28.8/arch/sparc64/mm/fault.c linux-2.6.28.8/arch/sparc64/mm/fault.c ---- linux-2.6.28.8/arch/sparc64/mm/fault.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/sparc64/mm/fault.c 2009-02-21 09:37:48.000000000 -0500 -@@ -19,6 +19,9 @@ - #include <linux/interrupt.h> - #include <linux/kprobes.h> - #include <linux/kdebug.h> -+#include <linux/slab.h> -+#include <linux/pagemap.h> -+#include <linux/compiler.h> - - #include <asm/page.h> - #include <asm/pgtable.h> -@@ -224,6 +227,367 @@ cannot_handle: - unhandled_fault (address, current, regs); - } - -+#ifdef CONFIG_PAX_PAGEEXEC -+#ifdef CONFIG_PAX_EMUPLT -+static void pax_emuplt_close(struct vm_area_struct *vma) -+{ -+ vma->vm_mm->call_dl_resolve = 0UL; -+} -+ -+static int pax_emuplt_fault(struct vm_area_struct *vma, struct vm_fault *vmf) -+{ -+ unsigned int *kaddr; -+ -+ vmf->page = alloc_page(GFP_HIGHUSER); -+ if (!vmf->page) -+ return VM_FAULT_OOM; -+ -+ kaddr = kmap(vmf->page); -+ memset(kaddr, 0, PAGE_SIZE); -+ kaddr[0] = 0x9DE3BFA8U; /* save */ -+ flush_dcache_page(vmf->page); -+ kunmap(vmf->page); -+ return VM_FAULT_MAJOR; -+} -+ -+static struct vm_operations_struct pax_vm_ops = { -+ .close = pax_emuplt_close, -+ .fault = pax_emuplt_fault -+}; -+ -+static int pax_insert_vma(struct vm_area_struct *vma, unsigned long addr) -+{ -+ int ret; -+ -+ vma->vm_mm = current->mm; -+ vma->vm_start = addr; -+ vma->vm_end = addr + PAGE_SIZE; -+ vma->vm_flags = VM_READ | VM_EXEC | VM_MAYREAD | VM_MAYEXEC; -+ vma->vm_page_prot = vm_get_page_prot(vma->vm_flags); -+ vma->vm_ops = &pax_vm_ops; -+ -+ ret = insert_vm_struct(current->mm, vma); -+ if (ret) -+ return ret; -+ -+ ++current->mm->total_vm; -+ return 0; -+} -+#endif -+ -+/* -+ * PaX: decide what to do with offenders (regs->tpc = fault address) -+ * -+ * returns 1 when task should be killed -+ * 2 when patched PLT trampoline was detected -+ * 3 when unpatched PLT trampoline was detected -+ */ -+static int pax_handle_fetch_fault(struct pt_regs *regs) -+{ -+ -+#ifdef CONFIG_PAX_EMUPLT -+ int err; -+ -+ do { /* PaX: patched PLT emulation #1 */ -+ unsigned int sethi1, sethi2, jmpl; -+ -+ err = get_user(sethi1, (unsigned int *)regs->tpc); -+ err |= get_user(sethi2, (unsigned int *)(regs->tpc+4)); -+ err |= get_user(jmpl, (unsigned int *)(regs->tpc+8)); -+ -+ if (err) -+ break; -+ -+ if ((sethi1 & 0xFFC00000U) == 0x03000000U && -+ (sethi2 & 0xFFC00000U) == 0x03000000U && -+ (jmpl & 0xFFFFE000U) == 0x81C06000U) -+ { -+ unsigned long addr; -+ -+ regs->u_regs[UREG_G1] = (sethi2 & 0x003FFFFFU) << 10; -+ addr = regs->u_regs[UREG_G1]; -+ addr += (((jmpl | 0xFFFFFFFFFFFFE000UL) ^ 0x00001000UL) + 0x00001000UL); -+ regs->tpc = addr; -+ regs->tnpc = addr+4; -+ return 2; -+ } -+ } while (0); -+ -+ { /* PaX: patched PLT emulation #2 */ -+ unsigned int ba; -+ -+ err = get_user(ba, (unsigned int *)regs->tpc); -+ -+ if (!err && (ba & 0xFFC00000U) == 0x30800000U) { -+ unsigned long addr; -+ -+ addr = regs->tpc + ((((ba | 0xFFFFFFFFFFC00000UL) ^ 0x00200000UL) + 0x00200000UL) << 2); -+ regs->tpc = addr; -+ regs->tnpc = addr+4; -+ return 2; -+ } -+ } -+ -+ do { /* PaX: patched PLT emulation #3 */ -+ unsigned int sethi, jmpl, nop; -+ -+ err = get_user(sethi, (unsigned int *)regs->tpc); -+ err |= get_user(jmpl, (unsigned int *)(regs->tpc+4)); -+ err |= get_user(nop, (unsigned int *)(regs->tpc+8)); -+ -+ if (err) -+ break; -+ -+ if ((sethi & 0xFFC00000U) == 0x03000000U && -+ (jmpl & 0xFFFFE000U) == 0x81C06000U && -+ nop == 0x01000000U) -+ { -+ unsigned long addr; -+ -+ addr = (sethi & 0x003FFFFFU) << 10; -+ regs->u_regs[UREG_G1] = addr; -+ addr += (((jmpl | 0xFFFFFFFFFFFFE000UL) ^ 0x00001000UL) + 0x00001000UL); -+ regs->tpc = addr; -+ regs->tnpc = addr+4; -+ return 2; -+ } -+ } while (0); -+ -+ do { /* PaX: patched PLT emulation #4 */ -+ unsigned int mov1, call, mov2; -+ -+ err = get_user(mov1, (unsigned int *)regs->tpc); -+ err |= get_user(call, (unsigned int *)(regs->tpc+4)); -+ err |= get_user(mov2, (unsigned int *)(regs->tpc+8)); -+ -+ if (err) -+ break; -+ -+ if (mov1 == 0x8210000FU && -+ (call & 0xC0000000U) == 0x40000000U && -+ mov2 == 0x9E100001U) -+ { -+ unsigned long addr; -+ -+ regs->u_regs[UREG_G1] = regs->u_regs[UREG_RETPC]; -+ addr = regs->tpc + 4 + ((((call | 0xFFFFFFFFC0000000UL) ^ 0x20000000UL) + 0x20000000UL) << 2); -+ regs->tpc = addr; -+ regs->tnpc = addr+4; -+ return 2; -+ } -+ } while (0); -+ -+ do { /* PaX: patched PLT emulation #5 */ -+ unsigned int sethi1, sethi2, or1, or2, sllx, jmpl, nop; -+ -+ err = get_user(sethi1, (unsigned int *)regs->tpc); -+ err |= get_user(sethi2, (unsigned int *)(regs->tpc+4)); -+ err |= get_user(or1, (unsigned int *)(regs->tpc+8)); -+ err |= get_user(or2, (unsigned int *)(regs->tpc+12)); -+ err |= get_user(sllx, (unsigned int *)(regs->tpc+16)); -+ err |= get_user(jmpl, (unsigned int *)(regs->tpc+20)); -+ err |= get_user(nop, (unsigned int *)(regs->tpc+24)); -+ -+ if (err) -+ break; -+ -+ if ((sethi1 & 0xFFC00000U) == 0x03000000U && -+ (sethi2 & 0xFFC00000U) == 0x0B000000U && -+ (or1 & 0xFFFFE000U) == 0x82106000U && -+ (or2 & 0xFFFFE000U) == 0x8A116000U && -+ sllx == 0x83287020 && -+ jmpl == 0x81C04005U && -+ nop == 0x01000000U) -+ { -+ unsigned long addr; -+ -+ regs->u_regs[UREG_G1] = ((sethi1 & 0x003FFFFFU) << 10) | (or1 & 0x000003FFU); -+ regs->u_regs[UREG_G1] <<= 32; -+ regs->u_regs[UREG_G5] = ((sethi2 & 0x003FFFFFU) << 10) | (or2 & 0x000003FFU); -+ addr = regs->u_regs[UREG_G1] + regs->u_regs[UREG_G5]; -+ regs->tpc = addr; -+ regs->tnpc = addr+4; -+ return 2; -+ } -+ } while (0); -+ -+ do { /* PaX: patched PLT emulation #6 */ -+ unsigned int sethi1, sethi2, sllx, or, jmpl, nop; -+ -+ err = get_user(sethi1, (unsigned int *)regs->tpc); -+ err |= get_user(sethi2, (unsigned int *)(regs->tpc+4)); -+ err |= get_user(sllx, (unsigned int *)(regs->tpc+8)); -+ err |= get_user(or, (unsigned int *)(regs->tpc+12)); -+ err |= get_user(jmpl, (unsigned int *)(regs->tpc+16)); -+ err |= get_user(nop, (unsigned int *)(regs->tpc+20)); -+ -+ if (err) -+ break; -+ -+ if ((sethi1 & 0xFFC00000U) == 0x03000000U && -+ (sethi2 & 0xFFC00000U) == 0x0B000000U && -+ sllx == 0x83287020 && -+ (or & 0xFFFFE000U) == 0x8A116000U && -+ jmpl == 0x81C04005U && -+ nop == 0x01000000U) -+ { -+ unsigned long addr; -+ -+ regs->u_regs[UREG_G1] = (sethi1 & 0x003FFFFFU) << 10; -+ regs->u_regs[UREG_G1] <<= 32; -+ regs->u_regs[UREG_G5] = ((sethi2 & 0x003FFFFFU) << 10) | (or & 0x3FFU); -+ addr = regs->u_regs[UREG_G1] + regs->u_regs[UREG_G5]; -+ regs->tpc = addr; -+ regs->tnpc = addr+4; -+ return 2; -+ } -+ } while (0); -+ -+ do { /* PaX: patched PLT emulation #7 */ -+ unsigned int sethi, ba, nop; -+ -+ err = get_user(sethi, (unsigned int *)regs->tpc); -+ err |= get_user(ba, (unsigned int *)(regs->tpc+4)); -+ err |= get_user(nop, (unsigned int *)(regs->tpc+8)); -+ -+ if (err) -+ break; -+ -+ if ((sethi & 0xFFC00000U) == 0x03000000U && -+ (ba & 0xFFF00000U) == 0x30600000U && -+ nop == 0x01000000U) -+ { -+ unsigned long addr; -+ -+ addr = (sethi & 0x003FFFFFU) << 10; -+ regs->u_regs[UREG_G1] = addr; -+ addr = regs->tpc + ((((ba | 0xFFFFFFFFFFF80000UL) ^ 0x00040000UL) + 0x00040000UL) << 2); -+ regs->tpc = addr; -+ regs->tnpc = addr+4; -+ return 2; -+ } -+ } while (0); -+ -+ do { /* PaX: unpatched PLT emulation step 1 */ -+ unsigned int sethi, ba, nop; -+ -+ err = get_user(sethi, (unsigned int *)regs->tpc); -+ err |= get_user(ba, (unsigned int *)(regs->tpc+4)); -+ err |= get_user(nop, (unsigned int *)(regs->tpc+8)); -+ -+ if (err) -+ break; -+ -+ if ((sethi & 0xFFC00000U) == 0x03000000U && -+ ((ba & 0xFFC00000U) == 0x30800000U || (ba & 0xFFF80000U) == 0x30680000U) && -+ nop == 0x01000000U) -+ { -+ unsigned long addr; -+ unsigned int save, call; -+ -+ if ((ba & 0xFFC00000U) == 0x30800000U) -+ addr = regs->tpc + 4 + ((((ba | 0xFFFFFFFFFFC00000UL) ^ 0x00200000UL) + 0x00200000UL) << 2); -+ else -+ addr = regs->tpc + 4 + ((((ba | 0xFFFFFFFFFFF80000UL) ^ 0x00040000UL) + 0x00040000UL) << 2); -+ -+ err = get_user(save, (unsigned int *)addr); -+ err |= get_user(call, (unsigned int *)(addr+4)); -+ err |= get_user(nop, (unsigned int *)(addr+8)); -+ if (err) -+ break; -+ -+ if (save == 0x9DE3BFA8U && -+ (call & 0xC0000000U) == 0x40000000U && -+ nop == 0x01000000U) -+ { -+ struct vm_area_struct *vma; -+ unsigned long call_dl_resolve; -+ -+ down_read(¤t->mm->mmap_sem); -+ call_dl_resolve = current->mm->call_dl_resolve; -+ up_read(¤t->mm->mmap_sem); -+ if (likely(call_dl_resolve)) -+ goto emulate; -+ -+ vma = kmem_cache_zalloc(vm_area_cachep, GFP_KERNEL); -+ -+ down_write(¤t->mm->mmap_sem); -+ if (current->mm->call_dl_resolve) { -+ call_dl_resolve = current->mm->call_dl_resolve; -+ up_write(¤t->mm->mmap_sem); -+ if (vma) -+ kmem_cache_free(vm_area_cachep, vma); -+ goto emulate; -+ } -+ -+ call_dl_resolve = get_unmapped_area(NULL, 0UL, PAGE_SIZE, 0UL, MAP_PRIVATE); -+ if (!vma || (call_dl_resolve & ~PAGE_MASK)) { -+ up_write(¤t->mm->mmap_sem); -+ if (vma) -+ kmem_cache_free(vm_area_cachep, vma); -+ return 1; -+ } -+ -+ if (pax_insert_vma(vma, call_dl_resolve)) { -+ up_write(¤t->mm->mmap_sem); -+ kmem_cache_free(vm_area_cachep, vma); -+ return 1; -+ } -+ -+ current->mm->call_dl_resolve = call_dl_resolve; -+ up_write(¤t->mm->mmap_sem); -+ -+emulate: -+ regs->u_regs[UREG_G1] = (sethi & 0x003FFFFFU) << 10; -+ regs->tpc = call_dl_resolve; -+ regs->tnpc = addr+4; -+ return 3; -+ } -+ } -+ } while (0); -+ -+ do { /* PaX: unpatched PLT emulation step 2 */ -+ unsigned int save, call, nop; -+ -+ err = get_user(save, (unsigned int *)(regs->tpc-4)); -+ err |= get_user(call, (unsigned int *)regs->tpc); -+ err |= get_user(nop, (unsigned int *)(regs->tpc+4)); -+ if (err) -+ break; -+ -+ if (save == 0x9DE3BFA8U && -+ (call & 0xC0000000U) == 0x40000000U && -+ nop == 0x01000000U) -+ { -+ unsigned long dl_resolve = regs->tpc + ((((call | 0xFFFFFFFFC0000000UL) ^ 0x20000000UL) + 0x20000000UL) << 2); -+ -+ regs->u_regs[UREG_RETPC] = regs->tpc; -+ regs->tpc = dl_resolve; -+ regs->tnpc = dl_resolve+4; -+ return 3; -+ } -+ } while (0); -+#endif -+ -+ return 1; -+} -+ -+void pax_report_insns(void *pc, void *sp) -+{ -+ unsigned long i; -+ -+ printk(KERN_ERR "PAX: bytes at PC: "); -+ for (i = 0; i < 5; i++) { -+ unsigned int c; -+ if (get_user(c, (unsigned int *)pc+i)) -+ printk(KERN_CONT "???????? "); -+ else -+ printk(KERN_CONT "%08x ", c); -+ } -+ printk("\n"); -+} -+#endif -+ - asmlinkage void __kprobes do_sparc64_fault(struct pt_regs *regs) - { - struct mm_struct *mm = current->mm; -@@ -265,8 +629,10 @@ asmlinkage void __kprobes do_sparc64_fau - goto intr_or_no_mm; - - if (test_thread_flag(TIF_32BIT)) { -- if (!(regs->tstate & TSTATE_PRIV)) -+ if (!(regs->tstate & TSTATE_PRIV)) { - regs->tpc &= 0xffffffff; -+ regs->tnpc &= 0xffffffff; -+ } - address &= 0xffffffff; - } - -@@ -283,6 +649,29 @@ asmlinkage void __kprobes do_sparc64_fau - if (!vma) - goto bad_area; - -+#ifdef CONFIG_PAX_PAGEEXEC -+ /* PaX: detect ITLB misses on non-exec pages */ -+ if ((mm->pax_flags & MF_PAX_PAGEEXEC) && vma->vm_start <= address && -+ !(vma->vm_flags & VM_EXEC) && (fault_code & FAULT_CODE_ITLB)) -+ { -+ if (address != regs->tpc) -+ goto good_area; -+ -+ up_read(&mm->mmap_sem); -+ switch (pax_handle_fetch_fault(regs)) { -+ -+#ifdef CONFIG_PAX_EMUPLT -+ case 2: -+ case 3: -+ return; -+#endif -+ -+ } -+ pax_report_fault(regs, (void *)regs->tpc, (void *)(regs->u_regs[UREG_FP] + STACK_BIAS)); -+ do_group_exit(SIGKILL); -+ } -+#endif -+ - /* Pure DTLB misses do not tell us whether the fault causing - * load/store/atomic was a write or not, it only says that there - * was no match. So in such a case we (carefully) read the -diff -urNp linux-2.6.28.8/arch/sparc64/mm/Makefile linux-2.6.28.8/arch/sparc64/mm/Makefile ---- linux-2.6.28.8/arch/sparc64/mm/Makefile 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/sparc64/mm/Makefile 2009-02-21 09:37:48.000000000 -0500 -@@ -2,7 +2,7 @@ - # - - EXTRA_AFLAGS := -ansi --EXTRA_CFLAGS := -Werror -+#EXTRA_CFLAGS := -Werror - - obj-y := ultra.o tlb.o tsb.o fault.o init.o generic.o - -diff -urNp linux-2.6.28.8/arch/um/include/asm/kmap_types.h linux-2.6.28.8/arch/um/include/asm/kmap_types.h ---- linux-2.6.28.8/arch/um/include/asm/kmap_types.h 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/um/include/asm/kmap_types.h 2009-02-21 09:37:48.000000000 -0500 -@@ -23,6 +23,7 @@ enum km_type { - KM_IRQ1, - KM_SOFTIRQ0, - KM_SOFTIRQ1, -+ KM_CLEARPAGE, - KM_TYPE_NR - }; - -diff -urNp linux-2.6.28.8/arch/um/include/asm/page.h linux-2.6.28.8/arch/um/include/asm/page.h ---- linux-2.6.28.8/arch/um/include/asm/page.h 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/um/include/asm/page.h 2009-02-21 09:37:48.000000000 -0500 -@@ -14,6 +14,9 @@ - #define PAGE_SIZE (_AC(1, UL) << PAGE_SHIFT) - #define PAGE_MASK (~(PAGE_SIZE-1)) - -+#define ktla_ktva(addr) (addr) -+#define ktva_ktla(addr) (addr) -+ - #ifndef __ASSEMBLY__ - - struct page; -diff -urNp linux-2.6.28.8/arch/um/sys-i386/syscalls.c linux-2.6.28.8/arch/um/sys-i386/syscalls.c ---- linux-2.6.28.8/arch/um/sys-i386/syscalls.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/um/sys-i386/syscalls.c 2009-02-21 09:37:48.000000000 -0500 -@@ -11,6 +11,21 @@ - #include "asm/uaccess.h" - #include "asm/unistd.h" - -+int i386_mmap_check(unsigned long addr, unsigned long len, unsigned long flags) -+{ -+ unsigned long pax_task_size = TASK_SIZE; -+ -+#ifdef CONFIG_PAX_SEGMEXEC -+ if (current->mm->pax_flags & MF_PAX_SEGMEXEC) -+ pax_task_size = SEGMEXEC_TASK_SIZE; -+#endif -+ -+ if (len > pax_task_size || addr > pax_task_size - len) -+ return -EINVAL; -+ -+ return 0; -+} -+ - /* - * Perform the select(nd, in, out, ex, tv) and mmap() system - * calls. Linux/i386 didn't use to be able to handle more than -diff -urNp linux-2.6.28.8/arch/x86/boot/bitops.h linux-2.6.28.8/arch/x86/boot/bitops.h ---- linux-2.6.28.8/arch/x86/boot/bitops.h 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/x86/boot/bitops.h 2009-02-21 09:37:48.000000000 -0500 -@@ -26,7 +26,7 @@ static inline int variable_test_bit(int - u8 v; - const u32 *p = (const u32 *)addr; - -- asm("btl %2,%1; setc %0" : "=qm" (v) : "m" (*p), "Ir" (nr)); -+ asm volatile("btl %2,%1; setc %0" : "=qm" (v) : "m" (*p), "Ir" (nr)); - return v; - } - -@@ -37,7 +37,7 @@ static inline int variable_test_bit(int - - static inline void set_bit(int nr, void *addr) - { -- asm("btsl %1,%0" : "+m" (*(u32 *)addr) : "Ir" (nr)); -+ asm volatile("btsl %1,%0" : "+m" (*(u32 *)addr) : "Ir" (nr)); - } - - #endif /* BOOT_BITOPS_H */ -diff -urNp linux-2.6.28.8/arch/x86/boot/boot.h linux-2.6.28.8/arch/x86/boot/boot.h ---- linux-2.6.28.8/arch/x86/boot/boot.h 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/x86/boot/boot.h 2009-02-21 09:37:48.000000000 -0500 -@@ -80,7 +80,7 @@ static inline void io_delay(void) - static inline u16 ds(void) - { - u16 seg; -- asm("movw %%ds,%0" : "=rm" (seg)); -+ asm volatile("movw %%ds,%0" : "=rm" (seg)); - return seg; - } - -@@ -176,7 +176,7 @@ static inline void wrgs32(u32 v, addr_t - static inline int memcmp(const void *s1, const void *s2, size_t len) - { - u8 diff; -- asm("repe; cmpsb; setnz %0" -+ asm volatile("repe; cmpsb; setnz %0" - : "=qm" (diff), "+D" (s1), "+S" (s2), "+c" (len)); - return diff; - } -diff -urNp linux-2.6.28.8/arch/x86/boot/compressed/head_32.S linux-2.6.28.8/arch/x86/boot/compressed/head_32.S ---- linux-2.6.28.8/arch/x86/boot/compressed/head_32.S 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/x86/boot/compressed/head_32.S 2009-03-07 10:28:24.000000000 -0500 -@@ -70,7 +70,7 @@ startup_32: - addl $(CONFIG_PHYSICAL_ALIGN - 1), %ebx - andl $(~(CONFIG_PHYSICAL_ALIGN - 1)), %ebx - #else -- movl $LOAD_PHYSICAL_ADDR, %ebx -+ movl $____LOAD_PHYSICAL_ADDR, %ebx - #endif - - /* Replace the compressed data size with the uncompressed size */ -@@ -80,8 +80,8 @@ startup_32: - /* Add 8 bytes for every 32K input block */ - shrl $12, %eax - addl %eax, %ebx -- /* Add 32K + 18 bytes of extra slack */ -- addl $(32768 + 18), %ebx -+ /* Add 64K of extra slack */ -+ addl $65536, %ebx - /* Align on a 4K boundary */ - addl $4095, %ebx - andl $~4095, %ebx -@@ -105,7 +105,7 @@ startup_32: - addl $(CONFIG_PHYSICAL_ALIGN - 1), %ebp - andl $(~(CONFIG_PHYSICAL_ALIGN - 1)), %ebp - #else -- movl $LOAD_PHYSICAL_ADDR, %ebp -+ movl $____LOAD_PHYSICAL_ADDR, %ebp - #endif - - /* -@@ -160,16 +160,15 @@ relocated: - * and where it was actually loaded. - */ - movl %ebp, %ebx -- subl $LOAD_PHYSICAL_ADDR, %ebx -+ subl $____LOAD_PHYSICAL_ADDR, %ebx - jz 2f /* Nothing to be done if loaded at compiled addr. */ - /* - * Process relocations. - */ - - 1: subl $4, %edi -- movl 0(%edi), %ecx -- testl %ecx, %ecx -- jz 2f -+ movl (%edi), %ecx -+ jecxz 2f - addl %ebx, -__PAGE_OFFSET(%ebx, %ecx) - jmp 1b - 2: -diff -urNp linux-2.6.28.8/arch/x86/boot/compressed/misc.c linux-2.6.28.8/arch/x86/boot/compressed/misc.c ---- linux-2.6.28.8/arch/x86/boot/compressed/misc.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/x86/boot/compressed/misc.c 2009-02-21 09:37:48.000000000 -0500 -@@ -373,7 +373,7 @@ static void parse_elf(void *output) - case PT_LOAD: - #ifdef CONFIG_RELOCATABLE - dest = output; -- dest += (phdr->p_paddr - LOAD_PHYSICAL_ADDR); -+ dest += (phdr->p_paddr - ____LOAD_PHYSICAL_ADDR); - #else - dest = (void *)(phdr->p_paddr); - #endif -@@ -425,7 +425,7 @@ asmlinkage void decompress_kernel(void * - if (heap > ((-__PAGE_OFFSET-(512<<20)-1) & 0x7fffffff)) - error("Destination address too large"); - #ifndef CONFIG_RELOCATABLE -- if ((u32)output != LOAD_PHYSICAL_ADDR) -+ if ((u32)output != ____LOAD_PHYSICAL_ADDR) - error("Wrong destination address"); - #endif - #endif -diff -urNp linux-2.6.28.8/arch/x86/boot/compressed/relocs.c linux-2.6.28.8/arch/x86/boot/compressed/relocs.c ---- linux-2.6.28.8/arch/x86/boot/compressed/relocs.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/x86/boot/compressed/relocs.c 2009-02-21 09:37:48.000000000 -0500 -@@ -10,8 +10,11 @@ - #define USE_BSD - #include <endian.h> - -+#include "../../../../include/linux/autoconf.h" -+ - #define ARRAY_SIZE(x) (sizeof(x) / sizeof((x)[0])) - static Elf32_Ehdr ehdr; -+static Elf32_Phdr *phdr; - static unsigned long reloc_count, reloc_idx; - static unsigned long *relocs; - -@@ -245,6 +248,36 @@ static void read_ehdr(FILE *fp) - } - } - -+static void read_phdrs(FILE *fp) -+{ -+ int i; -+ -+ phdr = calloc(ehdr.e_phnum, sizeof(Elf32_Phdr)); -+ if (!phdr) { -+ die("Unable to allocate %d program headers\n", -+ ehdr.e_phnum); -+ } -+ if (fseek(fp, ehdr.e_phoff, SEEK_SET) < 0) { -+ die("Seek to %d failed: %s\n", -+ ehdr.e_phoff, strerror(errno)); -+ } -+ if (fread(phdr, sizeof(*phdr), ehdr.e_phnum, fp) != ehdr.e_phnum) { -+ die("Cannot read ELF program headers: %s\n", -+ strerror(errno)); -+ } -+ for(i = 0; i < ehdr.e_phnum; i++) { -+ phdr[i].p_type = elf32_to_cpu(phdr[i].p_type); -+ phdr[i].p_offset = elf32_to_cpu(phdr[i].p_offset); -+ phdr[i].p_vaddr = elf32_to_cpu(phdr[i].p_vaddr); -+ phdr[i].p_paddr = elf32_to_cpu(phdr[i].p_paddr); -+ phdr[i].p_filesz = elf32_to_cpu(phdr[i].p_filesz); -+ phdr[i].p_memsz = elf32_to_cpu(phdr[i].p_memsz); -+ phdr[i].p_flags = elf32_to_cpu(phdr[i].p_flags); -+ phdr[i].p_align = elf32_to_cpu(phdr[i].p_align); -+ } -+ -+} -+ - static void read_shdrs(FILE *fp) - { - int i; -@@ -341,6 +374,8 @@ static void read_symtabs(FILE *fp) - static void read_relocs(FILE *fp) - { - int i,j; -+ uint32_t base; -+ - for (i = 0; i < ehdr.e_shnum; i++) { - struct section *sec = &secs[i]; - if (sec->shdr.sh_type != SHT_REL) { -@@ -360,9 +395,18 @@ static void read_relocs(FILE *fp) - die("Cannot read symbol table: %s\n", - strerror(errno)); - } -+ base = 0; -+ for (j = 0; j < ehdr.e_phnum; j++) { -+ if (phdr[j].p_type != PT_LOAD ) -+ continue; -+ if (secs[sec->shdr.sh_info].shdr.sh_offset < phdr[j].p_offset || secs[sec->shdr.sh_info].shdr.sh_offset >= phdr[j].p_offset + phdr[j].p_filesz) -+ continue; -+ base = CONFIG_PAGE_OFFSET + phdr[j].p_paddr - phdr[j].p_vaddr; -+ break; -+ } - for (j = 0; j < sec->shdr.sh_size/sizeof(Elf32_Rel); j++) { - Elf32_Rel *rel = &sec->reltab[j]; -- rel->r_offset = elf32_to_cpu(rel->r_offset); -+ rel->r_offset = elf32_to_cpu(rel->r_offset) + base; - rel->r_info = elf32_to_cpu(rel->r_info); - } - } -@@ -504,6 +548,23 @@ static void walk_relocs(void (*visit)(El - if (sym->st_shndx == SHN_ABS) { - continue; - } -+ /* Don't relocate actual per-cpu variables, they are absolute indices, not addresses */ -+ if (!strcmp(sec_name(sym->st_shndx), ".data.percpu") && strncmp(sym_name(sym_strtab, sym), "__per_cpu_", 10)) -+ continue; -+#if defined(CONFIG_PAX_KERNEXEC) && defined(CONFIG_X86_32) -+ /* Don't relocate actual code, they are relocated implicitly by the base address of KERNEL_CS */ -+ if (!strcmp(sec_name(sym->st_shndx), ".init.text")) -+ continue; -+ if (!strcmp(sec_name(sym->st_shndx), ".exit.text")) -+ continue; -+ if (!strcmp(sec_name(sym->st_shndx), ".text.head")) { -+ if (strcmp(sym_name(sym_strtab, sym), "__init_end") && -+ strcmp(sym_name(sym_strtab, sym), "KERNEL_TEXT_OFFSET")) -+ continue; -+ } -+ if (!strcmp(sec_name(sym->st_shndx), ".text")) -+ continue; -+#endif - if (r_type == R_386_PC32) { - /* PC relative relocations don't need to be adjusted */ - } -@@ -631,6 +692,7 @@ int main(int argc, char **argv) - fname, strerror(errno)); - } - read_ehdr(fp); -+ read_phdrs(fp); - read_shdrs(fp); - read_strtabs(fp); - read_symtabs(fp); -diff -urNp linux-2.6.28.8/arch/x86/boot/cpucheck.c linux-2.6.28.8/arch/x86/boot/cpucheck.c ---- linux-2.6.28.8/arch/x86/boot/cpucheck.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/x86/boot/cpucheck.c 2009-02-21 09:37:48.000000000 -0500 -@@ -74,7 +74,7 @@ static int has_fpu(void) - u16 fcw = -1, fsw = -1; - u32 cr0; - -- asm("movl %%cr0,%0" : "=r" (cr0)); -+ asm volatile("movl %%cr0,%0" : "=r" (cr0)); - if (cr0 & (X86_CR0_EM|X86_CR0_TS)) { - cr0 &= ~(X86_CR0_EM|X86_CR0_TS); - asm volatile("movl %0,%%cr0" : : "r" (cr0)); -@@ -90,7 +90,7 @@ static int has_eflag(u32 mask) - { - u32 f0, f1; - -- asm("pushfl ; " -+ asm volatile("pushfl ; " - "pushfl ; " - "popl %0 ; " - "movl %0,%1 ; " -@@ -115,7 +115,7 @@ static void get_flags(void) - set_bit(X86_FEATURE_FPU, cpu.flags); - - if (has_eflag(X86_EFLAGS_ID)) { -- asm("cpuid" -+ asm volatile("cpuid" - : "=a" (max_intel_level), - "=b" (cpu_vendor[0]), - "=d" (cpu_vendor[1]), -@@ -124,7 +124,7 @@ static void get_flags(void) - - if (max_intel_level >= 0x00000001 && - max_intel_level <= 0x0000ffff) { -- asm("cpuid" -+ asm volatile("cpuid" - : "=a" (tfms), - "=c" (cpu.flags[4]), - "=d" (cpu.flags[0]) -@@ -136,7 +136,7 @@ static void get_flags(void) - cpu.model += ((tfms >> 16) & 0xf) << 4; - } - -- asm("cpuid" -+ asm volatile("cpuid" - : "=a" (max_amd_level) - : "a" (0x80000000) - : "ebx", "ecx", "edx"); -@@ -144,7 +144,7 @@ static void get_flags(void) - if (max_amd_level >= 0x80000001 && - max_amd_level <= 0x8000ffff) { - u32 eax = 0x80000001; -- asm("cpuid" -+ asm volatile("cpuid" - : "+a" (eax), - "=c" (cpu.flags[6]), - "=d" (cpu.flags[1]) -@@ -203,9 +203,9 @@ int check_cpu(int *cpu_level_ptr, int *r - u32 ecx = MSR_K7_HWCR; - u32 eax, edx; - -- asm("rdmsr" : "=a" (eax), "=d" (edx) : "c" (ecx)); -+ asm volatile("rdmsr" : "=a" (eax), "=d" (edx) : "c" (ecx)); - eax &= ~(1 << 15); -- asm("wrmsr" : : "a" (eax), "d" (edx), "c" (ecx)); -+ asm volatile("wrmsr" : : "a" (eax), "d" (edx), "c" (ecx)); - - get_flags(); /* Make sure it really did something */ - err = check_flags(); -@@ -218,9 +218,9 @@ int check_cpu(int *cpu_level_ptr, int *r - u32 ecx = MSR_VIA_FCR; - u32 eax, edx; - -- asm("rdmsr" : "=a" (eax), "=d" (edx) : "c" (ecx)); -+ asm volatile("rdmsr" : "=a" (eax), "=d" (edx) : "c" (ecx)); - eax |= (1<<1)|(1<<7); -- asm("wrmsr" : : "a" (eax), "d" (edx), "c" (ecx)); -+ asm volatile("wrmsr" : : "a" (eax), "d" (edx), "c" (ecx)); - - set_bit(X86_FEATURE_CX8, cpu.flags); - err = check_flags(); -@@ -231,12 +231,12 @@ int check_cpu(int *cpu_level_ptr, int *r - u32 eax, edx; - u32 level = 1; - -- asm("rdmsr" : "=a" (eax), "=d" (edx) : "c" (ecx)); -- asm("wrmsr" : : "a" (~0), "d" (edx), "c" (ecx)); -- asm("cpuid" -+ asm volatile("rdmsr" : "=a" (eax), "=d" (edx) : "c" (ecx)); -+ asm volatile("wrmsr" : : "a" (~0), "d" (edx), "c" (ecx)); -+ asm volatile("cpuid" - : "+a" (level), "=d" (cpu.flags[0]) - : : "ecx", "ebx"); -- asm("wrmsr" : : "a" (eax), "d" (edx), "c" (ecx)); -+ asm volatile("wrmsr" : : "a" (eax), "d" (edx), "c" (ecx)); - - err = check_flags(); - } -diff -urNp linux-2.6.28.8/arch/x86/boot/edd.c linux-2.6.28.8/arch/x86/boot/edd.c ---- linux-2.6.28.8/arch/x86/boot/edd.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/x86/boot/edd.c 2009-02-21 09:37:48.000000000 -0500 -@@ -81,7 +81,7 @@ static int get_edd_info(u8 devno, struct - ax = 0x4100; - bx = EDDMAGIC1; - dx = devno; -- asm("pushfl; stc; int $0x13; setc %%al; popfl" -+ asm volatile("pushfl; stc; int $0x13; setc %%al; popfl" - : "+a" (ax), "+b" (bx), "=c" (cx), "+d" (dx) - : : "esi", "edi"); - -@@ -100,7 +100,7 @@ static int get_edd_info(u8 devno, struct - ei->params.length = sizeof(ei->params); - ax = 0x4800; - dx = devno; -- asm("pushfl; int $0x13; popfl" -+ asm volatile("pushfl; int $0x13; popfl" - : "+a" (ax), "+d" (dx), "=m" (ei->params) - : "S" (&ei->params) - : "ebx", "ecx", "edi"); -@@ -111,7 +111,7 @@ static int get_edd_info(u8 devno, struct - ax = 0x0800; - dx = devno; - di = 0; -- asm("pushw %%es; " -+ asm volatile("pushw %%es; " - "movw %%di,%%es; " - "pushfl; stc; int $0x13; setc %%al; popfl; " - "popw %%es" -diff -urNp linux-2.6.28.8/arch/x86/boot/main.c linux-2.6.28.8/arch/x86/boot/main.c ---- linux-2.6.28.8/arch/x86/boot/main.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/x86/boot/main.c 2009-02-21 09:37:48.000000000 -0500 -@@ -78,7 +78,7 @@ static void query_ist(void) - if (cpu.level < 6) - return; - -- asm("int $0x15" -+ asm volatile("int $0x15" - : "=a" (boot_params.ist_info.signature), - "=b" (boot_params.ist_info.command), - "=c" (boot_params.ist_info.event), -diff -urNp linux-2.6.28.8/arch/x86/boot/mca.c linux-2.6.28.8/arch/x86/boot/mca.c ---- linux-2.6.28.8/arch/x86/boot/mca.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/x86/boot/mca.c 2009-02-21 09:37:48.000000000 -0500 -@@ -19,7 +19,7 @@ int query_mca(void) - u8 err; - u16 es, bx, len; - -- asm("pushw %%es ; " -+ asm volatile("pushw %%es ; " - "int $0x15 ; " - "setc %0 ; " - "movw %%es, %1 ; " -diff -urNp linux-2.6.28.8/arch/x86/boot/memory.c linux-2.6.28.8/arch/x86/boot/memory.c ---- linux-2.6.28.8/arch/x86/boot/memory.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/x86/boot/memory.c 2009-02-21 09:37:48.000000000 -0500 -@@ -30,7 +30,7 @@ static int detect_memory_e820(void) - /* Important: %edx is clobbered by some BIOSes, - so it must be either used for the error output - or explicitly marked clobbered. */ -- asm("int $0x15; setc %0" -+ asm volatile("int $0x15; setc %0" - : "=d" (err), "+b" (next), "=a" (id), "+c" (size), - "=m" (*desc) - : "D" (desc), "d" (SMAP), "a" (0xe820)); -@@ -65,7 +65,7 @@ static int detect_memory_e801(void) - - bx = cx = dx = 0; - ax = 0xe801; -- asm("stc; int $0x15; setc %0" -+ asm volatile("stc; int $0x15; setc %0" - : "=m" (err), "+a" (ax), "+b" (bx), "+c" (cx), "+d" (dx)); - - if (err) -@@ -95,7 +95,7 @@ static int detect_memory_88(void) - u8 err; - - ax = 0x8800; -- asm("stc; int $0x15; setc %0" : "=bcdm" (err), "+a" (ax)); -+ asm volatile("stc; int $0x15; setc %0" : "=bcdm" (err), "+a" (ax)); - - boot_params.screen_info.ext_mem_k = ax; - -diff -urNp linux-2.6.28.8/arch/x86/boot/video.c linux-2.6.28.8/arch/x86/boot/video.c ---- linux-2.6.28.8/arch/x86/boot/video.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/x86/boot/video.c 2009-02-21 09:37:48.000000000 -0500 -@@ -23,7 +23,7 @@ static void store_cursor_position(void) - - ax = 0x0300; - bx = 0; -- asm(INT10 -+ asm volatile(INT10 - : "=d" (curpos), "+a" (ax), "+b" (bx) - : : "ecx", "esi", "edi"); - -@@ -38,7 +38,7 @@ static void store_video_mode(void) - /* N.B.: the saving of the video page here is a bit silly, - since we pretty much assume page 0 everywhere. */ - ax = 0x0f00; -- asm(INT10 -+ asm volatile(INT10 - : "+a" (ax), "=b" (page) - : : "ecx", "edx", "esi", "edi"); - -diff -urNp linux-2.6.28.8/arch/x86/boot/video-vesa.c linux-2.6.28.8/arch/x86/boot/video-vesa.c ---- linux-2.6.28.8/arch/x86/boot/video-vesa.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/x86/boot/video-vesa.c 2009-02-21 09:37:48.000000000 -0500 -@@ -41,7 +41,7 @@ static int vesa_probe(void) - - ax = 0x4f00; - di = (size_t)&vginfo; -- asm(INT10 -+ asm volatile(INT10 - : "+a" (ax), "+D" (di), "=m" (vginfo) - : : "ebx", "ecx", "edx", "esi"); - -@@ -68,7 +68,7 @@ static int vesa_probe(void) - ax = 0x4f01; - cx = mode; - di = (size_t)&vminfo; -- asm(INT10 -+ asm volatile(INT10 - : "+a" (ax), "+c" (cx), "+D" (di), "=m" (vminfo) - : : "ebx", "edx", "esi"); - -@@ -120,7 +120,7 @@ static int vesa_set_mode(struct mode_inf - ax = 0x4f01; - cx = vesa_mode; - di = (size_t)&vminfo; -- asm(INT10 -+ asm volatile(INT10 - : "+a" (ax), "+c" (cx), "+D" (di), "=m" (vminfo) - : : "ebx", "edx", "esi"); - -@@ -202,19 +202,20 @@ static void vesa_dac_set_8bits(void) - /* Save the VESA protected mode info */ - static void vesa_store_pm_info(void) - { -- u16 ax, bx, di, es; -+ u16 ax, bx, cx, di, es; - - ax = 0x4f0a; -- bx = di = 0; -- asm("pushw %%es; "INT10"; movw %%es,%0; popw %%es" -- : "=d" (es), "+a" (ax), "+b" (bx), "+D" (di) -- : : "ecx", "esi"); -+ bx = cx = di = 0; -+ asm volatile("pushw %%es; "INT10"; movw %%es,%0; popw %%es" -+ : "=d" (es), "+a" (ax), "+b" (bx), "+c" (cx), "+D" (di) -+ : : "esi"); - - if (ax != 0x004f) - return; - - boot_params.screen_info.vesapm_seg = es; - boot_params.screen_info.vesapm_off = di; -+ boot_params.screen_info.vesapm_size = cx; - } - - /* -@@ -268,7 +269,7 @@ void vesa_store_edid(void) - /* Note: The VBE DDC spec is different from the main VESA spec; - we genuinely have to assume all registers are destroyed here. */ - -- asm("pushw %%es; movw %2,%%es; "INT10"; popw %%es" -+ asm volatile("pushw %%es; movw %2,%%es; "INT10"; popw %%es" - : "+a" (ax), "+b" (bx) - : "c" (cx), "D" (di) - : "esi"); -@@ -284,7 +285,7 @@ void vesa_store_edid(void) - cx = 0; /* Controller 0 */ - dx = 0; /* EDID block number */ - di =(size_t) &boot_params.edid_info; /* (ES:)Pointer to block */ -- asm(INT10 -+ asm volatile(INT10 - : "+a" (ax), "+b" (bx), "+d" (dx), "=m" (boot_params.edid_info) - : "c" (cx), "D" (di) - : "esi"); -diff -urNp linux-2.6.28.8/arch/x86/boot/video-vga.c linux-2.6.28.8/arch/x86/boot/video-vga.c ---- linux-2.6.28.8/arch/x86/boot/video-vga.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/x86/boot/video-vga.c 2009-02-21 09:37:48.000000000 -0500 -@@ -225,7 +225,7 @@ static int vga_probe(void) - }; - u8 vga_flag; - -- asm(INT10 -+ asm volatile(INT10 - : "=b" (ega_bx) - : "a" (0x1200), "b" (0x10) /* Check EGA/VGA */ - : "ecx", "edx", "esi", "edi"); -@@ -237,7 +237,7 @@ static int vga_probe(void) - /* If we have MDA/CGA/HGC then BL will be unchanged at 0x10 */ - if ((u8)ega_bx != 0x10) { - /* EGA/VGA */ -- asm(INT10 -+ asm volatile(INT10 - : "=a" (vga_flag) - : "a" (0x1a00) - : "ebx", "ecx", "edx", "esi", "edi"); -diff -urNp linux-2.6.28.8/arch/x86/boot/voyager.c linux-2.6.28.8/arch/x86/boot/voyager.c ---- linux-2.6.28.8/arch/x86/boot/voyager.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/x86/boot/voyager.c 2009-02-21 09:37:48.000000000 -0500 -@@ -23,7 +23,7 @@ int query_voyager(void) - - data_ptr[0] = 0xff; /* Flag on config not found(?) */ - -- asm("pushw %%es ; " -+ asm volatile("pushw %%es ; " - "int $0x15 ; " - "setc %0 ; " - "movw %%es, %1 ; " -diff -urNp linux-2.6.28.8/arch/x86/ia32/ia32_signal.c linux-2.6.28.8/arch/x86/ia32/ia32_signal.c ---- linux-2.6.28.8/arch/x86/ia32/ia32_signal.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/x86/ia32/ia32_signal.c 2009-02-21 09:37:48.000000000 -0500 -@@ -518,6 +518,7 @@ int ia32_setup_rt_frame(int sig, struct - __NR_ia32_rt_sigreturn, - 0x80cd, - 0, -+ 0 - }; - - frame = get_sigframe(ka, regs, sizeof(*frame), &fpstate); -diff -urNp linux-2.6.28.8/arch/x86/include/asm/alternative.h linux-2.6.28.8/arch/x86/include/asm/alternative.h ---- linux-2.6.28.8/arch/x86/include/asm/alternative.h 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/x86/include/asm/alternative.h 2009-02-21 09:37:48.000000000 -0500 -@@ -96,7 +96,7 @@ const unsigned char *const *find_nop_tab - " .byte 662b-661b\n" /* sourcelen */ \ - " .byte 664f-663f\n" /* replacementlen */ \ - ".previous\n" \ -- ".section .altinstr_replacement,\"ax\"\n" \ -+ ".section .altinstr_replacement,\"a\"\n" \ - "663:\n\t" newinstr "\n664:\n" /* replacement */ \ - ".previous" :: "i" (feature) : "memory") - -@@ -120,7 +120,7 @@ const unsigned char *const *find_nop_tab - " .byte 662b-661b\n" /* sourcelen */ \ - " .byte 664f-663f\n" /* replacementlen */ \ - ".previous\n" \ -- ".section .altinstr_replacement,\"ax\"\n" \ -+ ".section .altinstr_replacement,\"a\"\n" \ - "663:\n\t" newinstr "\n664:\n" /* replacement */ \ - ".previous" :: "i" (feature), ##input) - -@@ -135,7 +135,7 @@ const unsigned char *const *find_nop_tab - " .byte 662b-661b\n" /* sourcelen */ \ - " .byte 664f-663f\n" /* replacementlen */ \ - ".previous\n" \ -- ".section .altinstr_replacement,\"ax\"\n" \ -+ ".section .altinstr_replacement,\"a\"\n" \ - "663:\n\t" newinstr "\n664:\n" /* replacement */ \ - ".previous" : output : [feat] "i" (feature), ##input) - -diff -urNp linux-2.6.28.8/arch/x86/include/asm/atomic_32.h linux-2.6.28.8/arch/x86/include/asm/atomic_32.h ---- linux-2.6.28.8/arch/x86/include/asm/atomic_32.h 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/x86/include/asm/atomic_32.h 2009-02-21 09:37:48.000000000 -0500 -@@ -47,7 +47,29 @@ typedef struct { - */ - static inline void atomic_add(int i, atomic_t *v) - { -- asm volatile(LOCK_PREFIX "addl %1,%0" -+ asm volatile(LOCK_PREFIX "addl %1,%0\n" -+ -+#ifdef CONFIG_PAX_REFCOUNT -+ "jno 0f\n" -+ LOCK_PREFIX "subl %1,%0\n" -+ "into\n0:\n" -+ _ASM_EXTABLE(0b, 0b) -+#endif -+ -+ : "+m" (v->counter) -+ : "ir" (i)); -+} -+ -+/** -+ * atomic_add_unchecked - add integer to atomic variable -+ * @i: integer value to add -+ * @v: pointer of type atomic_t -+ * -+ * Atomically adds @i to @v. -+ */ -+static inline void atomic_add_unchecked(int i, atomic_t *v) -+{ -+ asm volatile(LOCK_PREFIX "addl %1,%0\n" - : "+m" (v->counter) - : "ir" (i)); - } -@@ -61,7 +83,15 @@ static inline void atomic_add(int i, ato - */ - static inline void atomic_sub(int i, atomic_t *v) - { -- asm volatile(LOCK_PREFIX "subl %1,%0" -+ asm volatile(LOCK_PREFIX "subl %1,%0\n" -+ -+#ifdef CONFIG_PAX_REFCOUNT -+ "jno 0f\n" -+ LOCK_PREFIX "addl %1,%0\n" -+ "into\n0:\n" -+ _ASM_EXTABLE(0b, 0b) -+#endif -+ - : "+m" (v->counter) - : "ir" (i)); - } -@@ -79,7 +109,16 @@ static inline int atomic_sub_and_test(in - { - unsigned char c; - -- asm volatile(LOCK_PREFIX "subl %2,%0; sete %1" -+ asm volatile(LOCK_PREFIX "subl %2,%0\n" -+ -+#ifdef CONFIG_PAX_REFCOUNT -+ "jno 0f\n" -+ LOCK_PREFIX "addl %2,%0\n" -+ "into\n0:\n" -+ _ASM_EXTABLE(0b, 0b) -+#endif -+ -+ "sete %1\n" - : "+m" (v->counter), "=qm" (c) - : "ir" (i) : "memory"); - return c; -@@ -93,7 +132,18 @@ static inline int atomic_sub_and_test(in - */ - static inline void atomic_inc(atomic_t *v) - { -- asm volatile(LOCK_PREFIX "incl %0" -+ asm volatile(LOCK_PREFIX "incl %0\n" -+ -+#ifdef CONFIG_PAX_REFCOUNT -+ "into\n0:\n" -+ ".pushsection .fixup,\"ax\"\n" -+ "1:\n" -+ LOCK_PREFIX "decl %0\n" -+ "jmp 0b\n" -+ ".popsection\n" -+ _ASM_EXTABLE(0b, 1b) -+#endif -+ - : "+m" (v->counter)); - } - -@@ -105,7 +155,18 @@ static inline void atomic_inc(atomic_t * - */ - static inline void atomic_dec(atomic_t *v) - { -- asm volatile(LOCK_PREFIX "decl %0" -+ asm volatile(LOCK_PREFIX "decl %0\n" -+ -+#ifdef CONFIG_PAX_REFCOUNT -+ "into\n0:\n" -+ ".pushsection .fixup,\"ax\"\n" -+ "1: \n" -+ LOCK_PREFIX "incl %0\n" -+ "jmp 0b\n" -+ ".popsection\n" -+ _ASM_EXTABLE(0b, 1b) -+#endif -+ - : "+m" (v->counter)); - } - -@@ -121,7 +182,19 @@ static inline int atomic_dec_and_test(at - { - unsigned char c; - -- asm volatile(LOCK_PREFIX "decl %0; sete %1" -+ asm volatile(LOCK_PREFIX "decl %0\n" -+ -+#ifdef CONFIG_PAX_REFCOUNT -+ "into\n0:\n" -+ ".pushsection .fixup,\"ax\"\n" -+ "1: \n" -+ LOCK_PREFIX "incl %0\n" -+ "jmp 0b\n" -+ ".popsection\n" -+ _ASM_EXTABLE(0b, 1b) -+#endif -+ -+ "sete %1\n" - : "+m" (v->counter), "=qm" (c) - : : "memory"); - return c != 0; -@@ -139,7 +212,19 @@ static inline int atomic_inc_and_test(at - { - unsigned char c; - -- asm volatile(LOCK_PREFIX "incl %0; sete %1" -+ asm volatile(LOCK_PREFIX "incl %0\n" -+ -+#ifdef CONFIG_PAX_REFCOUNT -+ "into\n0:\n" -+ ".pushsection .fixup,\"ax\"\n" -+ "1: \n" -+ LOCK_PREFIX "decl %0\n" -+ "jmp 0b\n" -+ ".popsection\n" -+ _ASM_EXTABLE(0b, 1b) -+#endif -+ -+ "sete %1\n" - : "+m" (v->counter), "=qm" (c) - : : "memory"); - return c != 0; -@@ -158,7 +243,16 @@ static inline int atomic_add_negative(in - { - unsigned char c; - -- asm volatile(LOCK_PREFIX "addl %2,%0; sets %1" -+ asm volatile(LOCK_PREFIX "addl %2,%0\n" -+ -+#ifdef CONFIG_PAX_REFCOUNT -+ "jno 0f\n" -+ LOCK_PREFIX "subl %2,%0\n" -+ "into\n0:\n" -+ _ASM_EXTABLE(0b, 0b) -+#endif -+ -+ "sets %1\n" - : "+m" (v->counter), "=qm" (c) - : "ir" (i) : "memory"); - return c; -@@ -181,7 +275,15 @@ static inline int atomic_add_return(int - #endif - /* Modern 486+ processor */ - __i = i; -- asm volatile(LOCK_PREFIX "xaddl %0, %1" -+ asm volatile(LOCK_PREFIX "xaddl %0, %1\n" -+ -+#ifdef CONFIG_PAX_REFCOUNT -+ "jno 0f\n" -+ "movl %0, %1\n" -+ "into\n0:\n" -+ _ASM_EXTABLE(0b, 0b) -+#endif -+ - : "+r" (i), "+m" (v->counter) - : : "memory"); - return i + __i; -diff -urNp linux-2.6.28.8/arch/x86/include/asm/atomic_64.h linux-2.6.28.8/arch/x86/include/asm/atomic_64.h ---- linux-2.6.28.8/arch/x86/include/asm/atomic_64.h 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/x86/include/asm/atomic_64.h 2009-02-21 09:37:48.000000000 -0500 -@@ -48,7 +48,29 @@ typedef struct { - */ - static inline void atomic_add(int i, atomic_t *v) - { -- asm volatile(LOCK_PREFIX "addl %1,%0" -+ asm volatile(LOCK_PREFIX "addl %1,%0\n" -+ -+#ifdef CONFIG_PAX_REFCOUNT -+ "jno 0f\n" -+ LOCK_PREFIX "subl %1,%0\n" -+ "int $4\n0:\n" -+ _ASM_EXTABLE(0b, 0b) -+#endif -+ -+ : "=m" (v->counter) -+ : "ir" (i), "m" (v->counter)); -+} -+ -+/** -+ * atomic_add_unchecked - add integer to atomic variable -+ * @i: integer value to add -+ * @v: pointer of type atomic_t -+ * -+ * Atomically adds @i to @v. -+ */ -+static inline void atomic_add_unchecked(int i, atomic_t *v) -+{ -+ asm volatile(LOCK_PREFIX "addl %1,%0\n" - : "=m" (v->counter) - : "ir" (i), "m" (v->counter)); - } -@@ -62,7 +84,15 @@ static inline void atomic_add(int i, ato - */ - static inline void atomic_sub(int i, atomic_t *v) - { -- asm volatile(LOCK_PREFIX "subl %1,%0" -+ asm volatile(LOCK_PREFIX "subl %1,%0\n" -+ -+#ifdef CONFIG_PAX_REFCOUNT -+ "jno 0f\n" -+ LOCK_PREFIX "addl %1,%0\n" -+ "int $4\n0:\n" -+ _ASM_EXTABLE(0b, 0b) -+#endif -+ - : "=m" (v->counter) - : "ir" (i), "m" (v->counter)); - } -@@ -80,7 +110,16 @@ static inline int atomic_sub_and_test(in - { - unsigned char c; - -- asm volatile(LOCK_PREFIX "subl %2,%0; sete %1" -+ asm volatile(LOCK_PREFIX "subl %2,%0\n" -+ -+#ifdef CONFIG_PAX_REFCOUNT -+ "jno 0f\n" -+ LOCK_PREFIX "addl %2,%0\n" -+ "int $4\n0:\n" -+ _ASM_EXTABLE(0b, 0b) -+#endif -+ -+ "sete %1\n" - : "=m" (v->counter), "=qm" (c) - : "ir" (i), "m" (v->counter) : "memory"); - return c; -@@ -94,7 +133,19 @@ static inline int atomic_sub_and_test(in - */ - static inline void atomic_inc(atomic_t *v) - { -- asm volatile(LOCK_PREFIX "incl %0" -+ asm volatile(LOCK_PREFIX "incl %0\n" -+ -+#ifdef CONFIG_PAX_REFCOUNT -+ "jno 0f\n" -+ "int $4\n0:\n" -+ ".pushsection .fixup,\"ax\"\n" -+ "1:\n" -+ LOCK_PREFIX "decl %0\n" -+ "jmp 0b\n" -+ ".popsection\n" -+ _ASM_EXTABLE(0b, 1b) -+#endif -+ - : "=m" (v->counter) - : "m" (v->counter)); - } -@@ -107,7 +158,19 @@ static inline void atomic_inc(atomic_t * - */ - static inline void atomic_dec(atomic_t *v) - { -- asm volatile(LOCK_PREFIX "decl %0" -+ asm volatile(LOCK_PREFIX "decl %0\n" -+ -+#ifdef CONFIG_PAX_REFCOUNT -+ "jno 0f\n" -+ "int $4\n0:\n" -+ ".pushsection .fixup,\"ax\"\n" -+ "1: \n" -+ LOCK_PREFIX "incl %0\n" -+ "jmp 0b\n" -+ ".popsection\n" -+ _ASM_EXTABLE(0b, 1b) -+#endif -+ - : "=m" (v->counter) - : "m" (v->counter)); - } -@@ -124,7 +187,20 @@ static inline int atomic_dec_and_test(at - { - unsigned char c; - -- asm volatile(LOCK_PREFIX "decl %0; sete %1" -+ asm volatile(LOCK_PREFIX "decl %0\n" -+ -+#ifdef CONFIG_PAX_REFCOUNT -+ "jno 0f\n" -+ "int $4\n0:\n" -+ ".pushsection .fixup,\"ax\"\n" -+ "1: \n" -+ LOCK_PREFIX "incl %0\n" -+ "jmp 0b\n" -+ ".popsection\n" -+ _ASM_EXTABLE(0b, 1b) -+#endif -+ -+ "sete %1\n" - : "=m" (v->counter), "=qm" (c) - : "m" (v->counter) : "memory"); - return c != 0; -@@ -142,7 +218,20 @@ static inline int atomic_inc_and_test(at - { - unsigned char c; - -- asm volatile(LOCK_PREFIX "incl %0; sete %1" -+ asm volatile(LOCK_PREFIX "incl %0\n" -+ -+#ifdef CONFIG_PAX_REFCOUNT -+ "jno 0f\n" -+ "int $4\n0:\n" -+ ".pushsection .fixup,\"ax\"\n" -+ "1: \n" -+ LOCK_PREFIX "decl %0\n" -+ "jmp 0b\n" -+ ".popsection\n" -+ _ASM_EXTABLE(0b, 1b) -+#endif -+ -+ "sete %1\n" - : "=m" (v->counter), "=qm" (c) - : "m" (v->counter) : "memory"); - return c != 0; -@@ -161,7 +250,16 @@ static inline int atomic_add_negative(in - { - unsigned char c; - -- asm volatile(LOCK_PREFIX "addl %2,%0; sets %1" -+ asm volatile(LOCK_PREFIX "addl %2,%0\n" -+ -+#ifdef CONFIG_PAX_REFCOUNT -+ "jno 0f\n" -+ LOCK_PREFIX "subl %2,%0\n" -+ "int $4\n0:\n" -+ _ASM_EXTABLE(0b, 0b) -+#endif -+ -+ "sets %1\n" - : "=m" (v->counter), "=qm" (c) - : "ir" (i), "m" (v->counter) : "memory"); - return c; -@@ -177,7 +275,15 @@ static inline int atomic_add_negative(in - static inline int atomic_add_return(int i, atomic_t *v) - { - int __i = i; -- asm volatile(LOCK_PREFIX "xaddl %0, %1" -+ asm volatile(LOCK_PREFIX "xaddl %0, %1\n" -+ -+#ifdef CONFIG_PAX_REFCOUNT -+ "jno 0f\n" -+ "movl %0, %1\n" -+ "int $4\n0:\n" -+ _ASM_EXTABLE(0b, 0b) -+#endif -+ - : "+r" (i), "+m" (v->counter) - : : "memory"); - return i + __i; -@@ -226,7 +332,15 @@ typedef struct { - */ - static inline void atomic64_add(long i, atomic64_t *v) - { -- asm volatile(LOCK_PREFIX "addq %1,%0" -+ asm volatile(LOCK_PREFIX "addq %1,%0\n" -+ -+#ifdef CONFIG_PAX_REFCOUNT -+ "jno 0f\n" -+ LOCK_PREFIX "subq %1,%0\n" -+ "int $4\n0:\n" -+ _ASM_EXTABLE(0b, 0b) -+#endif -+ - : "=m" (v->counter) - : "er" (i), "m" (v->counter)); - } -@@ -240,7 +354,15 @@ static inline void atomic64_add(long i, - */ - static inline void atomic64_sub(long i, atomic64_t *v) - { -- asm volatile(LOCK_PREFIX "subq %1,%0" -+ asm volatile(LOCK_PREFIX "subq %1,%0\n" -+ -+#ifdef CONFIG_PAX_REFCOUNT -+ "jno 0f\n" -+ LOCK_PREFIX "addq %1,%0\n" -+ "int $4\n0:\n" -+ _ASM_EXTABLE(0b, 0b) -+#endif -+ - : "=m" (v->counter) - : "er" (i), "m" (v->counter)); - } -@@ -258,7 +380,16 @@ static inline int atomic64_sub_and_test( - { - unsigned char c; - -- asm volatile(LOCK_PREFIX "subq %2,%0; sete %1" -+ asm volatile(LOCK_PREFIX "subq %2,%0\n" -+ -+#ifdef CONFIG_PAX_REFCOUNT -+ "jno 0f\n" -+ LOCK_PREFIX "addq %2,%0\n" -+ "int $4\n0:\n" -+ _ASM_EXTABLE(0b, 0b) -+#endif -+ -+ "sete %1\n" - : "=m" (v->counter), "=qm" (c) - : "er" (i), "m" (v->counter) : "memory"); - return c; -@@ -272,7 +403,19 @@ static inline int atomic64_sub_and_test( - */ - static inline void atomic64_inc(atomic64_t *v) - { -- asm volatile(LOCK_PREFIX "incq %0" -+ asm volatile(LOCK_PREFIX "incq %0\n" -+ -+#ifdef CONFIG_PAX_REFCOUNT -+ "jno 0f\n" -+ "int $4\n0:\n" -+ ".pushsection .fixup,\"ax\"\n" -+ "1:\n" -+ LOCK_PREFIX "decq %0\n" -+ "jmp 0b\n" -+ ".popsection\n" -+ _ASM_EXTABLE(0b, 1b) -+#endif -+ - : "=m" (v->counter) - : "m" (v->counter)); - } -@@ -285,7 +428,19 @@ static inline void atomic64_inc(atomic64 - */ - static inline void atomic64_dec(atomic64_t *v) - { -- asm volatile(LOCK_PREFIX "decq %0" -+ asm volatile(LOCK_PREFIX "decq %0\n" -+ -+#ifdef CONFIG_PAX_REFCOUNT -+ "jno 0f\n" -+ "int $4\n0:\n" -+ ".pushsection .fixup,\"ax\"\n" -+ "1: \n" -+ LOCK_PREFIX "incq %0\n" -+ "jmp 0b\n" -+ ".popsection\n" -+ _ASM_EXTABLE(0b, 1b) -+#endif -+ - : "=m" (v->counter) - : "m" (v->counter)); - } -@@ -302,7 +457,20 @@ static inline int atomic64_dec_and_test( - { - unsigned char c; - -- asm volatile(LOCK_PREFIX "decq %0; sete %1" -+ asm volatile(LOCK_PREFIX "decq %0\n" -+ -+#ifdef CONFIG_PAX_REFCOUNT -+ "jno 0f\n" -+ "int $4\n0:\n" -+ ".pushsection .fixup,\"ax\"\n" -+ "1: \n" -+ LOCK_PREFIX "incq %0\n" -+ "jmp 0b\n" -+ ".popsection\n" -+ _ASM_EXTABLE(0b, 1b) -+#endif -+ -+ "sete %1\n" - : "=m" (v->counter), "=qm" (c) - : "m" (v->counter) : "memory"); - return c != 0; -@@ -320,7 +488,20 @@ static inline int atomic64_inc_and_test( - { - unsigned char c; - -- asm volatile(LOCK_PREFIX "incq %0; sete %1" -+ asm volatile(LOCK_PREFIX "incq %0\n" -+ -+#ifdef CONFIG_PAX_REFCOUNT -+ "jno 0f\n" -+ "int $4\n0:\n" -+ ".pushsection .fixup,\"ax\"\n" -+ "1: \n" -+ LOCK_PREFIX "decq %0\n" -+ "jmp 0b\n" -+ ".popsection\n" -+ _ASM_EXTABLE(0b, 1b) -+#endif -+ -+ "sete %1\n" - : "=m" (v->counter), "=qm" (c) - : "m" (v->counter) : "memory"); - return c != 0; -@@ -339,7 +520,16 @@ static inline int atomic64_add_negative( - { - unsigned char c; - -- asm volatile(LOCK_PREFIX "addq %2,%0; sets %1" -+ asm volatile(LOCK_PREFIX "addq %2,%0\n" -+ -+#ifdef CONFIG_PAX_REFCOUNT -+ "jno 0f\n" -+ LOCK_PREFIX "subq %2,%0\n" -+ "int $4\n0:\n" -+ _ASM_EXTABLE(0b, 0b) -+#endif -+ -+ "sets %1\n" - : "=m" (v->counter), "=qm" (c) - : "er" (i), "m" (v->counter) : "memory"); - return c; -@@ -355,7 +545,15 @@ static inline int atomic64_add_negative( - static inline long atomic64_add_return(long i, atomic64_t *v) - { - long __i = i; -- asm volatile(LOCK_PREFIX "xaddq %0, %1;" -+ asm volatile(LOCK_PREFIX "xaddq %0, %1\n" -+ -+#ifdef CONFIG_PAX_REFCOUNT -+ "jno 0f\n" -+ "movq %0, %1\n" -+ "int $4\n0:\n" -+ _ASM_EXTABLE(0b, 0b) -+#endif -+ - : "+r" (i), "+m" (v->counter) - : : "memory"); - return i + __i; -diff -urNp linux-2.6.28.8/arch/x86/include/asm/boot.h linux-2.6.28.8/arch/x86/include/asm/boot.h ---- linux-2.6.28.8/arch/x86/include/asm/boot.h 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/x86/include/asm/boot.h 2009-02-21 09:37:48.000000000 -0500 -@@ -11,10 +11,15 @@ - #define ASK_VGA 0xfffd /* ask for it at bootup */ - - /* Physical address where kernel should be loaded. */ --#define LOAD_PHYSICAL_ADDR ((CONFIG_PHYSICAL_START \ -+#define ____LOAD_PHYSICAL_ADDR ((CONFIG_PHYSICAL_START \ - + (CONFIG_PHYSICAL_ALIGN - 1)) \ - & ~(CONFIG_PHYSICAL_ALIGN - 1)) - -+#ifndef __ASSEMBLY__ -+extern unsigned char __LOAD_PHYSICAL_ADDR[]; -+#define LOAD_PHYSICAL_ADDR ((unsigned long)__LOAD_PHYSICAL_ADDR) -+#endif -+ - #ifdef CONFIG_X86_64 - #define BOOT_HEAP_SIZE 0x7000 - #define BOOT_STACK_SIZE 0x4000 -diff -urNp linux-2.6.28.8/arch/x86/include/asm/cache.h linux-2.6.28.8/arch/x86/include/asm/cache.h ---- linux-2.6.28.8/arch/x86/include/asm/cache.h 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/x86/include/asm/cache.h 2009-02-21 09:37:48.000000000 -0500 -@@ -6,6 +6,7 @@ - #define L1_CACHE_BYTES (1 << L1_CACHE_SHIFT) - - #define __read_mostly __attribute__((__section__(".data.read_mostly"))) -+#define __read_only __attribute__((__section__(".data.read_only"))) - - #ifdef CONFIG_X86_VSMP - /* vSMP Internode cacheline shift */ -diff -urNp linux-2.6.28.8/arch/x86/include/asm/checksum_32.h linux-2.6.28.8/arch/x86/include/asm/checksum_32.h ---- linux-2.6.28.8/arch/x86/include/asm/checksum_32.h 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/x86/include/asm/checksum_32.h 2009-02-21 09:37:48.000000000 -0500 -@@ -31,6 +31,14 @@ asmlinkage __wsum csum_partial_copy_gene - int len, __wsum sum, - int *src_err_ptr, int *dst_err_ptr); - -+asmlinkage __wsum csum_partial_copy_generic_to_user(const void *src, void *dst, -+ int len, __wsum sum, -+ int *src_err_ptr, int *dst_err_ptr); -+ -+asmlinkage __wsum csum_partial_copy_generic_from_user(const void *src, void *dst, -+ int len, __wsum sum, -+ int *src_err_ptr, int *dst_err_ptr); -+ - /* - * Note: when you get a NULL pointer exception here this means someone - * passed in an incorrect kernel address to one of these functions. -@@ -50,7 +58,7 @@ static inline __wsum csum_partial_copy_f - int *err_ptr) - { - might_sleep(); -- return csum_partial_copy_generic((__force void *)src, dst, -+ return csum_partial_copy_generic_from_user((__force void *)src, dst, - len, sum, err_ptr, NULL); - } - -@@ -177,7 +185,7 @@ static inline __wsum csum_and_copy_to_us - { - might_sleep(); - if (access_ok(VERIFY_WRITE, dst, len)) -- return csum_partial_copy_generic(src, (__force void *)dst, -+ return csum_partial_copy_generic_to_user(src, (__force void *)dst, - len, sum, NULL, err_ptr); - - if (len) -diff -urNp linux-2.6.28.8/arch/x86/include/asm/cpufeature.h linux-2.6.28.8/arch/x86/include/asm/cpufeature.h ---- linux-2.6.28.8/arch/x86/include/asm/cpufeature.h 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/x86/include/asm/cpufeature.h 2009-02-21 09:37:48.000000000 -0500 -@@ -80,7 +80,6 @@ - #define X86_FEATURE_UP (3*32+ 9) /* smp kernel running on up */ - #define X86_FEATURE_FXSAVE_LEAK (3*32+10) /* "" FXSAVE leaks FOP/FIP/FOP */ - #define X86_FEATURE_ARCH_PERFMON (3*32+11) /* Intel Architectural PerfMon */ --#define X86_FEATURE_NOPL (3*32+20) /* The NOPL (0F 1F) instructions */ - #define X86_FEATURE_PEBS (3*32+12) /* Precise-Event Based Sampling */ - #define X86_FEATURE_BTS (3*32+13) /* Branch Trace Store */ - #define X86_FEATURE_SYSCALL32 (3*32+14) /* "" syscall in ia32 userspace */ -diff -urNp linux-2.6.28.8/arch/x86/include/asm/desc.h linux-2.6.28.8/arch/x86/include/asm/desc.h ---- linux-2.6.28.8/arch/x86/include/asm/desc.h 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/x86/include/asm/desc.h 2009-02-21 09:37:48.000000000 -0500 -@@ -16,6 +16,7 @@ static inline void fill_ldt(struct desc_ - desc->base1 = (info->base_addr & 0x00ff0000) >> 16; - desc->type = (info->read_exec_only ^ 1) << 1; - desc->type |= info->contents << 2; -+ desc->type |= info->seg_not_present ^ 1; - desc->s = 1; - desc->dpl = 0x3; - desc->p = info->seg_not_present ^ 1; -@@ -32,16 +33,12 @@ static inline void fill_ldt(struct desc_ - } - - extern struct desc_ptr idt_descr; --extern gate_desc idt_table[]; -- --struct gdt_page { -- struct desc_struct gdt[GDT_ENTRIES]; --} __attribute__((aligned(PAGE_SIZE))); --DECLARE_PER_CPU(struct gdt_page, gdt_page); -+extern gate_desc idt_table[256]; - -+extern struct desc_struct cpu_gdt_table[NR_CPUS][PAGE_SIZE / sizeof(struct desc_struct)]; - static inline struct desc_struct *get_cpu_gdt_table(unsigned int cpu) - { -- return per_cpu(gdt_page, cpu).gdt; -+ return cpu_gdt_table[cpu]; - } - - #ifdef CONFIG_X86_64 -@@ -115,19 +112,48 @@ static inline void paravirt_free_ldt(str - static inline void native_write_idt_entry(gate_desc *idt, int entry, - const gate_desc *gate) - { -+ -+#ifdef CONFIG_PAX_KERNEXEC -+ unsigned long cr0; -+ -+ pax_open_kernel(cr0); -+#endif -+ - memcpy(&idt[entry], gate, sizeof(*gate)); -+ -+#ifdef CONFIG_PAX_KERNEXEC -+ pax_close_kernel(cr0); -+#endif -+ - } - - static inline void native_write_ldt_entry(struct desc_struct *ldt, int entry, - const void *desc) - { -+ -+#ifdef CONFIG_PAX_KERNEXEC -+ unsigned long cr0; -+ -+ pax_open_kernel(cr0); -+#endif -+ - memcpy(&ldt[entry], desc, 8); -+ -+#ifdef CONFIG_PAX_KERNEXEC -+ pax_close_kernel(cr0); -+#endif -+ - } - - static inline void native_write_gdt_entry(struct desc_struct *gdt, int entry, - const void *desc, int type) - { - unsigned int size; -+ -+#ifdef CONFIG_PAX_KERNEXEC -+ unsigned long cr0; -+#endif -+ - switch (type) { - case DESC_TSS: - size = sizeof(tss_desc); -@@ -139,7 +165,17 @@ static inline void native_write_gdt_entr - size = sizeof(struct desc_struct); - break; - } -+ -+#ifdef CONFIG_PAX_KERNEXEC -+ pax_open_kernel(cr0); -+#endif -+ - memcpy(&gdt[entry], desc, size); -+ -+#ifdef CONFIG_PAX_KERNEXEC -+ pax_close_kernel(cr0); -+#endif -+ - } - - static inline void pack_descriptor(struct desc_struct *desc, unsigned long base, -@@ -211,7 +247,19 @@ static inline void native_set_ldt(const - - static inline void native_load_tr_desc(void) - { -+ -+#ifdef CONFIG_PAX_KERNEXEC -+ unsigned long cr0; -+ -+ pax_open_kernel(cr0); -+#endif -+ - asm volatile("ltr %w0"::"q" (GDT_ENTRY_TSS*8)); -+ -+#ifdef CONFIG_PAX_KERNEXEC -+ pax_close_kernel(cr0); -+#endif -+ - } - - static inline void native_load_gdt(const struct desc_ptr *dtr) -@@ -246,8 +294,19 @@ static inline void native_load_tls(struc - unsigned int i; - struct desc_struct *gdt = get_cpu_gdt_table(cpu); - -+#ifdef CONFIG_PAX_KERNEXEC -+ unsigned long cr0; -+ -+ pax_open_kernel(cr0); -+#endif -+ - for (i = 0; i < GDT_ENTRY_TLS_ENTRIES; i++) - gdt[GDT_ENTRY_TLS_MIN + i] = t->tls_array[i]; -+ -+#ifdef CONFIG_PAX_KERNEXEC -+ pax_close_kernel(cr0); -+#endif -+ - } - - #define _LDT_empty(info) \ -@@ -381,6 +440,18 @@ static inline void set_system_intr_gate_ - _set_gate(n, GATE_INTERRUPT, addr, 0x3, ist, __KERNEL_CS); - } - -+#ifdef CONFIG_X86_32 -+static inline void set_user_cs(unsigned long base, unsigned long limit, int cpu) -+{ -+ struct desc_struct d; -+ -+ if (likely(limit)) -+ limit = (limit - 1UL) >> PAGE_SHIFT; -+ pack_descriptor(&d, base, limit, 0xFB, 0xC); -+ write_gdt_entry(get_cpu_gdt_table(cpu), GDT_ENTRY_DEFAULT_USER_CS, &d, DESCTYPE_S); -+} -+#endif -+ - #else - /* - * GET_DESC_BASE reads the descriptor base of the specified segment. -diff -urNp linux-2.6.28.8/arch/x86/include/asm/e820.h linux-2.6.28.8/arch/x86/include/asm/e820.h ---- linux-2.6.28.8/arch/x86/include/asm/e820.h 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/x86/include/asm/e820.h 2009-02-21 09:37:48.000000000 -0500 -@@ -134,7 +134,7 @@ extern char *memory_setup(void); - #define ISA_END_ADDRESS 0x100000 - #define is_ISA_range(s, e) ((s) >= ISA_START_ADDRESS && (e) < ISA_END_ADDRESS) - --#define BIOS_BEGIN 0x000a0000 -+#define BIOS_BEGIN 0x000c0000 - #define BIOS_END 0x00100000 - - #ifdef __KERNEL__ -diff -urNp linux-2.6.28.8/arch/x86/include/asm/elf.h linux-2.6.28.8/arch/x86/include/asm/elf.h ---- linux-2.6.28.8/arch/x86/include/asm/elf.h 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/x86/include/asm/elf.h 2009-02-21 09:37:48.000000000 -0500 -@@ -252,7 +252,25 @@ extern int force_personality32; - the loader. We need to make sure that it is out of the way of the program - that it will "exec", and that there is sufficient room for the brk. */ - -+#ifdef CONFIG_PAX_SEGMEXEC -+#define ELF_ET_DYN_BASE ((current->mm->pax_flags & MF_PAX_SEGMEXEC) ? SEGMEXEC_TASK_SIZE/3*2 : TASK_SIZE/3*2) -+#else - #define ELF_ET_DYN_BASE (TASK_SIZE / 3 * 2) -+#endif -+ -+#ifdef CONFIG_PAX_ASLR -+#ifdef CONFIG_X86_32 -+#define PAX_ELF_ET_DYN_BASE 0x10000000UL -+ -+#define PAX_DELTA_MMAP_LEN (current->mm->pax_flags & MF_PAX_SEGMEXEC ? 15 : 16) -+#define PAX_DELTA_STACK_LEN (current->mm->pax_flags & MF_PAX_SEGMEXEC ? 15 : 16) -+#else -+#define PAX_ELF_ET_DYN_BASE 0x400000UL -+ -+#define PAX_DELTA_MMAP_LEN ((test_thread_flag(TIF_IA32)) ? 16 : 32) -+#define PAX_DELTA_STACK_LEN ((test_thread_flag(TIF_IA32)) ? 16 : 32) -+#endif -+#endif - - /* This yields a mask that user programs can use to figure out what - instruction set this CPU supports. This could be done in user space, -@@ -304,8 +322,7 @@ do { \ - #define ARCH_DLINFO \ - do { \ - if (vdso_enabled) \ -- NEW_AUX_ENT(AT_SYSINFO_EHDR, \ -- (unsigned long)current->mm->context.vdso); \ -+ NEW_AUX_ENT(AT_SYSINFO_EHDR, current->mm->context.vdso);\ - } while (0) - - #define AT_SYSINFO 32 -@@ -316,7 +333,7 @@ do { \ - - #endif /* !CONFIG_X86_32 */ - --#define VDSO_CURRENT_BASE ((unsigned long)current->mm->context.vdso) -+#define VDSO_CURRENT_BASE (current->mm->context.vdso) - - #define VDSO_ENTRY \ - ((unsigned long)VDSO32_SYMBOL(VDSO_CURRENT_BASE, vsyscall)) -@@ -330,7 +347,4 @@ extern int arch_setup_additional_pages(s - extern int syscall32_setup_pages(struct linux_binprm *, int exstack); - #define compat_arch_setup_additional_pages syscall32_setup_pages - --extern unsigned long arch_randomize_brk(struct mm_struct *mm); --#define arch_randomize_brk arch_randomize_brk -- - #endif /* _ASM_X86_ELF_H */ -diff -urNp linux-2.6.28.8/arch/x86/include/asm/futex.h linux-2.6.28.8/arch/x86/include/asm/futex.h ---- linux-2.6.28.8/arch/x86/include/asm/futex.h 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/x86/include/asm/futex.h 2009-02-21 09:37:48.000000000 -0500 -@@ -11,6 +11,40 @@ - #include <asm/processor.h> - #include <asm/system.h> - -+#ifdef CONFIG_X86_32 -+#define __futex_atomic_op1(insn, ret, oldval, uaddr, oparg) \ -+ asm volatile( \ -+ "movw\t%w6, %%ds\n" \ -+ "1:\t" insn "\n" \ -+ "2:\tpushl\t%%ss\n" \ -+ "\tpopl\t%%ds\n" \ -+ "\t.section .fixup,\"ax\"\n" \ -+ "3:\tmov\t%3, %1\n" \ -+ "\tjmp\t2b\n" \ -+ "\t.previous\n" \ -+ _ASM_EXTABLE(1b, 3b) \ -+ : "=r" (oldval), "=r" (ret), "+m" (*uaddr) \ -+ : "i" (-EFAULT), "0" (oparg), "1" (0), "r" (__USER_DS)) -+ -+#define __futex_atomic_op2(insn, ret, oldval, uaddr, oparg) \ -+ asm volatile("movw\t%w7, %%es\n" \ -+ "1:\tmovl\t%%es:%2, %0\n" \ -+ "\tmovl\t%0, %3\n" \ -+ "\t" insn "\n" \ -+ "2:\t" LOCK_PREFIX "cmpxchgl %3, %%es:%2\n"\ -+ "\tjnz\t1b\n" \ -+ "3:\tpushl\t%%ss\n" \ -+ "\tpopl\t%%es\n" \ -+ "\t.section .fixup,\"ax\"\n" \ -+ "4:\tmov\t%5, %1\n" \ -+ "\tjmp\t3b\n" \ -+ "\t.previous\n" \ -+ _ASM_EXTABLE(1b, 4b) \ -+ _ASM_EXTABLE(2b, 4b) \ -+ : "=&a" (oldval), "=&r" (ret), \ -+ "+m" (*uaddr), "=&r" (tem) \ -+ : "r" (oparg), "i" (-EFAULT), "1" (0), "r" (__USER_DS)) -+#else - #define __futex_atomic_op1(insn, ret, oldval, uaddr, oparg) \ - asm volatile("1:\t" insn "\n" \ - "2:\t.section .fixup,\"ax\"\n" \ -@@ -36,8 +70,9 @@ - : "=&a" (oldval), "=&r" (ret), \ - "+m" (*uaddr), "=&r" (tem) \ - : "r" (oparg), "i" (-EFAULT), "1" (0)) -+#endif - --static inline int futex_atomic_op_inuser(int encoded_op, int __user *uaddr) -+static inline int futex_atomic_op_inuser(int encoded_op, u32 __user *uaddr) - { - int op = (encoded_op >> 28) & 7; - int cmp = (encoded_op >> 24) & 15; -@@ -61,11 +96,20 @@ static inline int futex_atomic_op_inuser - - switch (op) { - case FUTEX_OP_SET: -+#ifdef CONFIG_X86_32 -+ __futex_atomic_op1("xchgl %0, %%ds:%2", ret, oldval, uaddr, oparg); -+#else - __futex_atomic_op1("xchgl %0, %2", ret, oldval, uaddr, oparg); -+#endif - break; - case FUTEX_OP_ADD: -+#ifdef CONFIG_X86_32 -+ __futex_atomic_op1(LOCK_PREFIX "xaddl %0, %%ds:%2", ret, oldval, -+ uaddr, oparg); -+#else - __futex_atomic_op1(LOCK_PREFIX "xaddl %0, %2", ret, oldval, - uaddr, oparg); -+#endif - break; - case FUTEX_OP_OR: - __futex_atomic_op2("orl %4, %3", ret, oldval, uaddr, oparg); -@@ -109,7 +153,7 @@ static inline int futex_atomic_op_inuser - return ret; - } - --static inline int futex_atomic_cmpxchg_inatomic(int __user *uaddr, int oldval, -+static inline int futex_atomic_cmpxchg_inatomic(u32 __user *uaddr, int oldval, - int newval) - { - -@@ -122,14 +166,27 @@ static inline int futex_atomic_cmpxchg_i - if (!access_ok(VERIFY_WRITE, uaddr, sizeof(int))) - return -EFAULT; - -- asm volatile("1:\t" LOCK_PREFIX "cmpxchgl %3, %1\n" -+ asm volatile( -+#ifdef CONFIG_X86_32 -+ "\tmovw %w5, %%ds\n" -+ "1:\t" LOCK_PREFIX "cmpxchgl %3, %1\n" -+ "2:\tpushl %%ss\n" -+ "\tpopl %%ds\n" -+ "\t.section .fixup, \"ax\"\n" -+#else -+ "1:\t" LOCK_PREFIX "cmpxchgl %3, %1\n" - "2:\t.section .fixup, \"ax\"\n" -+#endif - "3:\tmov %2, %0\n" - "\tjmp 2b\n" - "\t.previous\n" - _ASM_EXTABLE(1b, 3b) - : "=a" (oldval), "+m" (*uaddr) -+#ifdef CONFIG_X86_32 -+ : "i" (-EFAULT), "r" (newval), "0" (oldval), "r" (__USER_DS) -+#else - : "i" (-EFAULT), "r" (newval), "0" (oldval) -+#endif - : "memory" - ); - -diff -urNp linux-2.6.28.8/arch/x86/include/asm/i387.h linux-2.6.28.8/arch/x86/include/asm/i387.h ---- linux-2.6.28.8/arch/x86/include/asm/i387.h 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/x86/include/asm/i387.h 2009-02-21 09:37:48.000000000 -0500 -@@ -197,13 +197,8 @@ static inline void restore_fpu(struct ta - } - - /* We need a safe address that is cheap to find and that is already -- in L1 during context switch. The best choices are unfortunately -- different for UP and SMP */ --#ifdef CONFIG_SMP --#define safe_address (__per_cpu_offset[0]) --#else --#define safe_address (kstat_cpu(0).cpustat.user) --#endif -+ in L1 during context switch. */ -+#define safe_address (init_tss[smp_processor_id()].x86_tss.sp0) - - /* - * These must be called with preempt disabled -diff -urNp linux-2.6.28.8/arch/x86/include/asm/io_64.h linux-2.6.28.8/arch/x86/include/asm/io_64.h ---- linux-2.6.28.8/arch/x86/include/asm/io_64.h 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/x86/include/asm/io_64.h 2009-02-21 09:37:48.000000000 -0500 -@@ -158,6 +158,17 @@ static inline void *phys_to_virt(unsigne - } - #endif - -+#define ARCH_HAS_VALID_PHYS_ADDR_RANGE -+static inline int valid_phys_addr_range (unsigned long addr, size_t count) -+{ -+ return ((addr + count + PAGE_SIZE - 1) >> PAGE_SHIFT) < (1 << (boot_cpu_data.x86_phys_bits - PAGE_SHIFT)) ? 1 : 0; -+} -+ -+static inline int valid_mmap_phys_addr_range (unsigned long pfn, size_t count) -+{ -+ return (pfn + (count >> PAGE_SHIFT)) < (1 << (boot_cpu_data.x86_phys_bits - PAGE_SHIFT)) ? 1 : 0; -+} -+ - /* - * Change "struct page" to physical address. - */ -diff -urNp linux-2.6.28.8/arch/x86/include/asm/irqflags.h linux-2.6.28.8/arch/x86/include/asm/irqflags.h ---- linux-2.6.28.8/arch/x86/include/asm/irqflags.h 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/x86/include/asm/irqflags.h 2009-02-21 09:37:48.000000000 -0500 -@@ -141,6 +141,8 @@ static inline unsigned long __raw_local_ - #define INTERRUPT_RETURN iret - #define ENABLE_INTERRUPTS_SYSEXIT sti; sysexit - #define GET_CR0_INTO_EAX movl %cr0, %eax -+#define GET_CR0_INTO_EDX movl %cr0, %edx -+#define SET_CR0_FROM_EDX movl %edx, %cr0 - #endif - - -diff -urNp linux-2.6.28.8/arch/x86/include/asm/kmap_types.h linux-2.6.28.8/arch/x86/include/asm/kmap_types.h ---- linux-2.6.28.8/arch/x86/include/asm/kmap_types.h 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/x86/include/asm/kmap_types.h 2009-02-21 09:37:48.000000000 -0500 -@@ -21,7 +21,8 @@ D(9) KM_IRQ0, - D(10) KM_IRQ1, - D(11) KM_SOFTIRQ0, - D(12) KM_SOFTIRQ1, --D(13) KM_TYPE_NR -+D(13) KM_CLEARPAGE, -+D(14) KM_TYPE_NR - }; - - #undef D -diff -urNp linux-2.6.28.8/arch/x86/include/asm/kvm_host.h linux-2.6.28.8/arch/x86/include/asm/kvm_host.h ---- linux-2.6.28.8/arch/x86/include/asm/kvm_host.h 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/x86/include/asm/kvm_host.h 2009-02-21 09:37:48.000000000 -0500 -@@ -479,7 +479,7 @@ struct kvm_x86_ops { - int (*get_tdp_level)(void); - }; - --extern struct kvm_x86_ops *kvm_x86_ops; -+extern const struct kvm_x86_ops *kvm_x86_ops; - - int kvm_mmu_module_init(void); - void kvm_mmu_module_exit(void); -diff -urNp linux-2.6.28.8/arch/x86/include/asm/linkage.h linux-2.6.28.8/arch/x86/include/asm/linkage.h ---- linux-2.6.28.8/arch/x86/include/asm/linkage.h 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/x86/include/asm/linkage.h 2009-02-21 09:37:48.000000000 -0500 -@@ -7,6 +7,11 @@ - #ifdef CONFIG_X86_64 - #define __ALIGN .p2align 4,,15 - #define __ALIGN_STR ".p2align 4,,15" -+#else -+#ifdef CONFIG_X86_ALIGNMENT_16 -+#define __ALIGN .align 16,0x90 -+#define __ALIGN_STR ".align 16,0x90" -+#endif - #endif - - #ifdef CONFIG_X86_32 -@@ -52,10 +57,5 @@ - - #endif - --#ifdef CONFIG_X86_ALIGNMENT_16 --#define __ALIGN .align 16,0x90 --#define __ALIGN_STR ".align 16,0x90" --#endif -- - #endif /* _ASM_X86_LINKAGE_H */ - -diff -urNp linux-2.6.28.8/arch/x86/include/asm/local.h linux-2.6.28.8/arch/x86/include/asm/local.h ---- linux-2.6.28.8/arch/x86/include/asm/local.h 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/x86/include/asm/local.h 2009-02-21 09:37:48.000000000 -0500 -@@ -18,26 +18,90 @@ typedef struct { - - static inline void local_inc(local_t *l) - { -- asm volatile(_ASM_INC "%0" -+ asm volatile(_ASM_INC "%0\n" -+ -+#ifdef CONFIG_PAX_REFCOUNT -+#ifdef CONFIG_X86_32 -+ "into\n0:\n" -+#else -+ "jno 0f\n" -+ "int $4\n0:\n" -+#endif -+ ".pushsection .fixup,\"ax\"\n" -+ "1:\n" -+ _ASM_DEC "%0\n" -+ "jmp 0b\n" -+ ".popsection\n" -+ _ASM_EXTABLE(0b, 1b) -+#endif -+ - : "+m" (l->a.counter)); - } - - static inline void local_dec(local_t *l) - { -- asm volatile(_ASM_DEC "%0" -+ asm volatile(_ASM_DEC "%0\n" -+ -+#ifdef CONFIG_PAX_REFCOUNT -+#ifdef CONFIG_X86_32 -+ "into\n0:\n" -+#else -+ "jno 0f\n" -+ "int $4\n0:\n" -+#endif -+ ".pushsection .fixup,\"ax\"\n" -+ "1:\n" -+ _ASM_INC "%0\n" -+ "jmp 0b\n" -+ ".popsection\n" -+ _ASM_EXTABLE(0b, 1b) -+#endif -+ - : "+m" (l->a.counter)); - } - - static inline void local_add(long i, local_t *l) - { -- asm volatile(_ASM_ADD "%1,%0" -+ asm volatile(_ASM_ADD "%1,%0\n" -+ -+#ifdef CONFIG_PAX_REFCOUNT -+#ifdef CONFIG_X86_32 -+ "into\n0:\n" -+#else -+ "jno 0f\n" -+ "int $4\n0:\n" -+#endif -+ ".pushsection .fixup,\"ax\"\n" -+ "1:\n" -+ _ASM_SUB "%1,%0\n" -+ "jmp 0b\n" -+ ".popsection\n" -+ _ASM_EXTABLE(0b, 1b) -+#endif -+ - : "+m" (l->a.counter) - : "ir" (i)); - } - - static inline void local_sub(long i, local_t *l) - { -- asm volatile(_ASM_SUB "%1,%0" -+ asm volatile(_ASM_SUB "%1,%0\n" -+ -+#ifdef CONFIG_PAX_REFCOUNT -+#ifdef CONFIG_X86_32 -+ "into\n0:\n" -+#else -+ "jno 0f\n" -+ "int $4\n0:\n" -+#endif -+ ".pushsection .fixup,\"ax\"\n" -+ "1:\n" -+ _ASM_ADD "%1,%0\n" -+ "jmp 0b\n" -+ ".popsection\n" -+ _ASM_EXTABLE(0b, 1b) -+#endif -+ - : "+m" (l->a.counter) - : "ir" (i)); - } -@@ -55,7 +119,24 @@ static inline int local_sub_and_test(lon - { - unsigned char c; - -- asm volatile(_ASM_SUB "%2,%0; sete %1" -+ asm volatile(_ASM_SUB "%2,%0\n" -+ -+#ifdef CONFIG_PAX_REFCOUNT -+#ifdef CONFIG_X86_32 -+ "into\n0:\n" -+#else -+ "jno 0f\n" -+ "int $4\n0:\n" -+#endif -+ ".pushsection .fixup,\"ax\"\n" -+ "1:\n" -+ _ASM_ADD "%2,%0\n" -+ "jmp 0b\n" -+ ".popsection\n" -+ _ASM_EXTABLE(0b, 1b) -+#endif -+ -+ "sete %1\n" - : "+m" (l->a.counter), "=qm" (c) - : "ir" (i) : "memory"); - return c; -@@ -73,7 +154,24 @@ static inline int local_dec_and_test(loc - { - unsigned char c; - -- asm volatile(_ASM_DEC "%0; sete %1" -+ asm volatile(_ASM_DEC "%0\n" -+ -+#ifdef CONFIG_PAX_REFCOUNT -+#ifdef CONFIG_X86_32 -+ "into\n0:\n" -+#else -+ "jno 0f\n" -+ "int $4\n0:\n" -+#endif -+ ".pushsection .fixup,\"ax\"\n" -+ "1:\n" -+ _ASM_INC "%0\n" -+ "jmp 0b\n" -+ ".popsection\n" -+ _ASM_EXTABLE(0b, 1b) -+#endif -+ -+ "sete %1\n" - : "+m" (l->a.counter), "=qm" (c) - : : "memory"); - return c != 0; -@@ -91,7 +189,24 @@ static inline int local_inc_and_test(loc - { - unsigned char c; - -- asm volatile(_ASM_INC "%0; sete %1" -+ asm volatile(_ASM_INC "%0\n" -+ -+#ifdef CONFIG_PAX_REFCOUNT -+#ifdef CONFIG_X86_32 -+ "into\n0:\n" -+#else -+ "jno 0f\n" -+ "int $4\n0:\n" -+#endif -+ ".pushsection .fixup,\"ax\"\n" -+ "1:\n" -+ _ASM_DEC "%0\n" -+ "jmp 0b\n" -+ ".popsection\n" -+ _ASM_EXTABLE(0b, 1b) -+#endif -+ -+ "sete %1\n" - : "+m" (l->a.counter), "=qm" (c) - : : "memory"); - return c != 0; -@@ -110,7 +225,24 @@ static inline int local_add_negative(lon - { - unsigned char c; - -- asm volatile(_ASM_ADD "%2,%0; sets %1" -+ asm volatile(_ASM_ADD "%2,%0\n" -+ -+#ifdef CONFIG_PAX_REFCOUNT -+#ifdef CONFIG_X86_32 -+ "into\n0:\n" -+#else -+ "jno 0f\n" -+ "int $4\n0:\n" -+#endif -+ ".pushsection .fixup,\"ax\"\n" -+ "1:\n" -+ _ASM_SUB "%2,%0\n" -+ "jmp 0b\n" -+ ".popsection\n" -+ _ASM_EXTABLE(0b, 1b) -+#endif -+ -+ "sets %1\n" - : "+m" (l->a.counter), "=qm" (c) - : "ir" (i) : "memory"); - return c; -@@ -133,7 +265,23 @@ static inline long local_add_return(long - #endif - /* Modern 486+ processor */ - __i = i; -- asm volatile(_ASM_XADD "%0, %1;" -+ asm volatile(_ASM_XADD "%0, %1\n" -+ -+#ifdef CONFIG_PAX_REFCOUNT -+#ifdef CONFIG_X86_32 -+ "into\n0:\n" -+#else -+ "jno 0f\n" -+ "int $4\n0:\n" -+#endif -+ ".pushsection .fixup,\"ax\"\n" -+ "1:\n" -+ _ASM_MOV "%0,%1\n" -+ "jmp 0b\n" -+ ".popsection\n" -+ _ASM_EXTABLE(0b, 1b) -+#endif -+ - : "+r" (i), "+m" (l->a.counter) - : : "memory"); - return i + __i; -diff -urNp linux-2.6.28.8/arch/x86/include/asm/mach-default/apm.h linux-2.6.28.8/arch/x86/include/asm/mach-default/apm.h ---- linux-2.6.28.8/arch/x86/include/asm/mach-default/apm.h 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/x86/include/asm/mach-default/apm.h 2009-02-21 09:37:48.000000000 -0500 -@@ -34,7 +34,7 @@ static inline void apm_bios_call_asm(u32 - __asm__ __volatile__(APM_DO_ZERO_SEGS - "pushl %%edi\n\t" - "pushl %%ebp\n\t" -- "lcall *%%cs:apm_bios_entry\n\t" -+ "lcall *%%ss:apm_bios_entry\n\t" - "setc %%al\n\t" - "popl %%ebp\n\t" - "popl %%edi\n\t" -@@ -58,7 +58,7 @@ static inline u8 apm_bios_call_simple_as - __asm__ __volatile__(APM_DO_ZERO_SEGS - "pushl %%edi\n\t" - "pushl %%ebp\n\t" -- "lcall *%%cs:apm_bios_entry\n\t" -+ "lcall *%%ss:apm_bios_entry\n\t" - "setc %%bl\n\t" - "popl %%ebp\n\t" - "popl %%edi\n\t" -diff -urNp linux-2.6.28.8/arch/x86/include/asm/mman.h linux-2.6.28.8/arch/x86/include/asm/mman.h ---- linux-2.6.28.8/arch/x86/include/asm/mman.h 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/x86/include/asm/mman.h 2009-02-21 09:37:48.000000000 -0500 -@@ -17,4 +17,14 @@ - #define MCL_CURRENT 1 /* lock all current mappings */ - #define MCL_FUTURE 2 /* lock all future mappings */ - -+#ifdef __KERNEL__ -+#ifndef __ASSEMBLY__ -+#ifdef CONFIG_X86_32 -+#define arch_mmap_check i386_mmap_check -+int i386_mmap_check(unsigned long addr, unsigned long len, -+ unsigned long flags); -+#endif -+#endif -+#endif -+ - #endif /* _ASM_X86_MMAN_H */ -diff -urNp linux-2.6.28.8/arch/x86/include/asm/mmu_context_32.h linux-2.6.28.8/arch/x86/include/asm/mmu_context_32.h ---- linux-2.6.28.8/arch/x86/include/asm/mmu_context_32.h 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/x86/include/asm/mmu_context_32.h 2009-02-21 09:37:48.000000000 -0500 -@@ -33,6 +33,22 @@ static inline void switch_mm(struct mm_s - */ - if (unlikely(prev->context.ldt != next->context.ldt)) - load_LDT_nolock(&next->context); -+ -+#if defined(CONFIG_PAX_PAGEEXEC) && defined(CONFIG_SMP) -+ if (!nx_enabled) { -+ smp_mb__before_clear_bit(); -+ cpu_clear(cpu, prev->context.cpu_user_cs_mask); -+ smp_mb__after_clear_bit(); -+ cpu_set(cpu, next->context.cpu_user_cs_mask); -+ } -+#endif -+ -+#if defined(CONFIG_PAX_PAGEEXEC) || defined(CONFIG_PAX_SEGMEXEC) -+ if (unlikely(prev->context.user_cs_base != next->context.user_cs_base || -+ prev->context.user_cs_limit != next->context.user_cs_limit)) -+ set_user_cs(next->context.user_cs_base, next->context.user_cs_limit, cpu); -+#endif -+ - } - #ifdef CONFIG_SMP - else { -@@ -45,6 +61,19 @@ static inline void switch_mm(struct mm_s - */ - load_cr3(next->pgd); - load_LDT_nolock(&next->context); -+ -+#ifdef CONFIG_PAX_PAGEEXEC -+ if (!nx_enabled) -+ cpu_set(cpu, next->context.cpu_user_cs_mask); -+#endif -+ -+#if defined(CONFIG_PAX_PAGEEXEC) || defined(CONFIG_PAX_SEGMEXEC) -+#ifdef CONFIG_PAX_PAGEEXEC -+ if (!((next->pax_flags & MF_PAX_PAGEEXEC) && nx_enabled)) -+#endif -+ set_user_cs(next->context.user_cs_base, next->context.user_cs_limit, cpu); -+#endif -+ - } - } - #endif -diff -urNp linux-2.6.28.8/arch/x86/include/asm/mmu.h linux-2.6.28.8/arch/x86/include/asm/mmu.h ---- linux-2.6.28.8/arch/x86/include/asm/mmu.h 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/x86/include/asm/mmu.h 2009-02-21 09:37:48.000000000 -0500 -@@ -9,10 +9,23 @@ - * we put the segment information here. - */ - typedef struct { -- void *ldt; -+ struct desc_struct *ldt; - int size; - struct mutex lock; -- void *vdso; -+ unsigned long vdso; -+ -+#ifdef CONFIG_X86_32 -+#if defined(CONFIG_PAX_PAGEEXEC) || defined(CONFIG_PAX_SEGMEXEC) -+ unsigned long user_cs_base; -+ unsigned long user_cs_limit; -+ -+#if defined(CONFIG_PAX_PAGEEXEC) && defined(CONFIG_SMP) -+ cpumask_t cpu_user_cs_mask; -+#endif -+ -+#endif -+#endif -+ - } mm_context_t; - - #ifdef CONFIG_SMP -diff -urNp linux-2.6.28.8/arch/x86/include/asm/module.h linux-2.6.28.8/arch/x86/include/asm/module.h ---- linux-2.6.28.8/arch/x86/include/asm/module.h 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/x86/include/asm/module.h 2009-02-21 09:37:48.000000000 -0500 -@@ -74,7 +74,12 @@ struct mod_arch_specific {}; - # else - # define MODULE_STACKSIZE "" - # endif --# define MODULE_ARCH_VERMAGIC MODULE_PROC_FAMILY MODULE_STACKSIZE -+# ifdef CONFIG_GRKERNSEC -+# define MODULE_GRSEC "GRSECURITY " -+# else -+# define MODULE_GRSEC "" -+# endif -+# define MODULE_ARCH_VERMAGIC MODULE_PROC_FAMILY MODULE_STACKSIZE MODULE_GRSEC - #endif - - #endif /* _ASM_X86_MODULE_H */ -diff -urNp linux-2.6.28.8/arch/x86/include/asm/page_32.h linux-2.6.28.8/arch/x86/include/asm/page_32.h ---- linux-2.6.28.8/arch/x86/include/asm/page_32.h 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/x86/include/asm/page_32.h 2009-02-21 09:37:48.000000000 -0500 -@@ -13,6 +13,23 @@ - */ - #define __PAGE_OFFSET _AC(CONFIG_PAGE_OFFSET, UL) - -+#ifdef CONFIG_PAX_KERNEXEC -+#ifndef __ASSEMBLY__ -+extern unsigned char MODULES_VADDR[]; -+extern unsigned char MODULES_END[]; -+extern unsigned char KERNEL_TEXT_OFFSET[]; -+#define ktla_ktva(addr) (addr + (unsigned long)KERNEL_TEXT_OFFSET) -+#define ktva_ktla(addr) (addr - (unsigned long)KERNEL_TEXT_OFFSET) -+#endif -+#else -+#define ktla_ktva(addr) (addr) -+#define ktva_ktla(addr) (addr) -+#endif -+ -+#ifdef CONFIG_PAX_PAGEEXEC -+#define CONFIG_ARCH_TRACK_EXEC_LIMIT 1 -+#endif -+ - #ifdef CONFIG_4KSTACKS - #define THREAD_ORDER 0 - #else -diff -urNp linux-2.6.28.8/arch/x86/include/asm/page_64.h linux-2.6.28.8/arch/x86/include/asm/page_64.h ---- linux-2.6.28.8/arch/x86/include/asm/page_64.h 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/x86/include/asm/page_64.h 2009-02-21 09:37:48.000000000 -0500 -@@ -49,6 +49,9 @@ - #define __START_KERNEL (__START_KERNEL_map + __PHYSICAL_START) - #define __START_KERNEL_map _AC(0xffffffff80000000, UL) - -+#define ktla_ktva(addr) (addr) -+#define ktva_ktla(addr) (addr) -+ - /* See Documentation/x86_64/mm.txt for a description of the memory map. */ - #define __PHYSICAL_MASK_SHIFT 46 - #define __VIRTUAL_MASK_SHIFT 48 -@@ -101,5 +104,6 @@ extern void init_extra_mapping_wb(unsign - #define pfn_valid(pfn) ((pfn) < max_pfn) - #endif - -+#define nx_enabled (1) - - #endif /* _ASM_X86_PAGE_64_H */ -diff -urNp linux-2.6.28.8/arch/x86/include/asm/paravirt.h linux-2.6.28.8/arch/x86/include/asm/paravirt.h ---- linux-2.6.28.8/arch/x86/include/asm/paravirt.h 2009-03-07 10:24:49.000000000 -0500 -+++ linux-2.6.28.8/arch/x86/include/asm/paravirt.h 2009-03-07 10:29:51.000000000 -0500 -@@ -1557,7 +1557,7 @@ static inline unsigned long __raw_local_ - #define PV_RESTORE_REGS popl %edx; popl %ecx; popl %edi; popl %eax - #define PARA_PATCH(struct, off) ((PARAVIRT_PATCH_##struct + (off)) / 4) - #define PARA_SITE(ptype, clobbers, ops) _PVSITE(ptype, clobbers, ops, .long, 4) --#define PARA_INDIRECT(addr) *%cs:addr -+#define PARA_INDIRECT(addr) *%ss:addr - #endif - - #define INTERRUPT_RETURN \ -diff -urNp linux-2.6.28.8/arch/x86/include/asm/pda.h linux-2.6.28.8/arch/x86/include/asm/pda.h ---- linux-2.6.28.8/arch/x86/include/asm/pda.h 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/x86/include/asm/pda.h 2009-02-21 09:37:48.000000000 -0500 -@@ -16,11 +16,9 @@ struct x8664_pda { - unsigned long oldrsp; /* 24 user rsp for system call */ - int irqcount; /* 32 Irq nesting counter. Starts -1 */ - unsigned int cpunumber; /* 36 Logical CPU number */ --#ifdef CONFIG_CC_STACKPROTECTOR - unsigned long stack_canary; /* 40 stack canary value */ - /* gcc-ABI: this canary MUST be at - offset 40!!! */ --#endif - char *irqstackptr; - short nodenumber; /* number of current node (32k max) */ - short in_bootmem; /* pda lives in bootmem */ -diff -urNp linux-2.6.28.8/arch/x86/include/asm/percpu.h linux-2.6.28.8/arch/x86/include/asm/percpu.h ---- linux-2.6.28.8/arch/x86/include/asm/percpu.h 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/x86/include/asm/percpu.h 2009-02-21 09:37:48.000000000 -0500 -@@ -93,6 +93,12 @@ DECLARE_PER_CPU(struct x8664_pda, pda); - - #define __my_cpu_offset x86_read_percpu(this_cpu_off) - -+#include <asm-generic/sections.h> -+#include <linux/threads.h> -+#define __per_cpu_offset __per_cpu_offset -+extern unsigned long __per_cpu_offset[NR_CPUS]; -+#define per_cpu_offset(x) (__per_cpu_offset[x] + (unsigned long)__per_cpu_start) -+ - /* fs segment starts at (positive) offset == __per_cpu_offset[cpu] */ - #define __percpu_seg "%%fs:" - -diff -urNp linux-2.6.28.8/arch/x86/include/asm/pgalloc.h linux-2.6.28.8/arch/x86/include/asm/pgalloc.h ---- linux-2.6.28.8/arch/x86/include/asm/pgalloc.h 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/x86/include/asm/pgalloc.h 2009-02-21 09:37:48.000000000 -0500 -@@ -52,7 +52,7 @@ static inline void pmd_populate_kernel(s - pmd_t *pmd, pte_t *pte) - { - paravirt_alloc_pte(mm, __pa(pte) >> PAGE_SHIFT); -- set_pmd(pmd, __pmd(__pa(pte) | _PAGE_TABLE)); -+ set_pmd(pmd, __pmd(__pa(pte) | _KERNPG_TABLE)); - } - - static inline void pmd_populate(struct mm_struct *mm, pmd_t *pmd, -diff -urNp linux-2.6.28.8/arch/x86/include/asm/pgtable-2level.h linux-2.6.28.8/arch/x86/include/asm/pgtable-2level.h ---- linux-2.6.28.8/arch/x86/include/asm/pgtable-2level.h 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/x86/include/asm/pgtable-2level.h 2009-02-21 09:37:48.000000000 -0500 -@@ -18,7 +18,19 @@ static inline void native_set_pte(pte_t - - static inline void native_set_pmd(pmd_t *pmdp, pmd_t pmd) - { -+ -+#ifdef CONFIG_PAX_KERNEXEC -+ unsigned long cr0; -+ -+ pax_open_kernel(cr0); -+#endif -+ - *pmdp = pmd; -+ -+#ifdef CONFIG_PAX_KERNEXEC -+ pax_close_kernel(cr0); -+#endif -+ - } - - static inline void native_set_pte_atomic(pte_t *ptep, pte_t pte) -diff -urNp linux-2.6.28.8/arch/x86/include/asm/pgtable_32.h linux-2.6.28.8/arch/x86/include/asm/pgtable_32.h ---- linux-2.6.28.8/arch/x86/include/asm/pgtable_32.h 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/x86/include/asm/pgtable_32.h 2009-02-21 09:37:48.000000000 -0500 -@@ -25,8 +25,6 @@ - struct mm_struct; - struct vm_area_struct; - --extern pgd_t swapper_pg_dir[1024]; -- - static inline void pgtable_cache_init(void) { } - static inline void check_pgt_cache(void) { } - void paging_init(void); -@@ -46,6 +44,11 @@ extern void set_pmd_pfn(unsigned long, u - # include <asm/pgtable-2level-defs.h> - #endif - -+extern pgd_t swapper_pg_dir[PTRS_PER_PGD]; -+#ifdef CONFIG_X86_PAE -+extern pmd_t swapper_pm_dir[PTRS_PER_PGD][PTRS_PER_PMD]; -+#endif -+ - #define PGDIR_SIZE (1UL << PGDIR_SHIFT) - #define PGDIR_MASK (~(PGDIR_SIZE - 1)) - -@@ -83,7 +86,7 @@ extern void set_pmd_pfn(unsigned long, u - #undef TEST_ACCESS_OK - - /* The boot page tables (all created as a single array) */ --extern unsigned long pg0[]; -+extern pte_t pg0[]; - - #define pte_present(x) ((x).pte_low & (_PAGE_PRESENT | _PAGE_PROTNONE)) - -@@ -175,6 +178,9 @@ do { \ - - #endif /* !__ASSEMBLY__ */ - -+#define HAVE_ARCH_UNMAPPED_AREA -+#define HAVE_ARCH_UNMAPPED_AREA_TOPDOWN -+ - /* - * kern_addr_valid() is (1) for FLATMEM and (0) for - * SPARSEMEM and DISCONTIGMEM -diff -urNp linux-2.6.28.8/arch/x86/include/asm/pgtable-3level.h linux-2.6.28.8/arch/x86/include/asm/pgtable-3level.h ---- linux-2.6.28.8/arch/x86/include/asm/pgtable-3level.h 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/x86/include/asm/pgtable-3level.h 2009-02-21 09:37:48.000000000 -0500 -@@ -70,12 +70,36 @@ static inline void native_set_pte_atomic - - static inline void native_set_pmd(pmd_t *pmdp, pmd_t pmd) - { -+ -+#ifdef CONFIG_PAX_KERNEXEC -+ unsigned long cr0; -+ -+ pax_open_kernel(cr0); -+#endif -+ - set_64bit((unsigned long long *)(pmdp), native_pmd_val(pmd)); -+ -+#ifdef CONFIG_PAX_KERNEXEC -+ pax_close_kernel(cr0); -+#endif -+ - } - - static inline void native_set_pud(pud_t *pudp, pud_t pud) - { -+ -+#ifdef CONFIG_PAX_KERNEXEC -+ unsigned long cr0; -+ -+ pax_open_kernel(cr0); -+#endif -+ - set_64bit((unsigned long long *)(pudp), native_pud_val(pud)); -+ -+#ifdef CONFIG_PAX_KERNEXEC -+ pax_close_kernel(cr0); -+#endif -+ - } - - /* -diff -urNp linux-2.6.28.8/arch/x86/include/asm/pgtable_64.h linux-2.6.28.8/arch/x86/include/asm/pgtable_64.h ---- linux-2.6.28.8/arch/x86/include/asm/pgtable_64.h 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/x86/include/asm/pgtable_64.h 2009-02-21 09:37:48.000000000 -0500 -@@ -15,9 +15,12 @@ - - extern pud_t level3_kernel_pgt[512]; - extern pud_t level3_ident_pgt[512]; -+extern pud_t level3_vmalloc_pgt[512]; -+extern pud_t level3_vmemmap_pgt[512]; - extern pmd_t level2_kernel_pgt[512]; - extern pmd_t level2_fixmap_pgt[512]; --extern pmd_t level2_ident_pgt[512]; -+extern pmd_t level2_ident_pgt[512*4]; -+extern pte_t level1_fixmap_pgt[512]; - extern pgd_t init_level4_pgt[]; - - #define swapper_pg_dir init_level4_pgt -@@ -106,7 +109,19 @@ static inline pte_t native_ptep_get_and_ - - static inline void native_set_pmd(pmd_t *pmdp, pmd_t pmd) - { -+ -+#ifdef CONFIG_PAX_KERNEXEC -+ unsigned long cr0; -+ -+ pax_open_kernel(cr0); -+#endif -+ - *pmdp = pmd; -+ -+#ifdef CONFIG_PAX_KERNEXEC -+ pax_close_kernel(cr0); -+#endif -+ - } - - static inline void native_pmd_clear(pmd_t *pmd) -@@ -158,17 +173,17 @@ static inline void native_pgd_clear(pgd_ - - static inline int pgd_bad(pgd_t pgd) - { -- return (pgd_val(pgd) & ~(PTE_PFN_MASK | _PAGE_USER)) != _KERNPG_TABLE; -+ return (pgd_val(pgd) & ~(PTE_PFN_MASK | _PAGE_USER | _PAGE_NX)) != _KERNPG_TABLE; - } - - static inline int pud_bad(pud_t pud) - { -- return (pud_val(pud) & ~(PTE_PFN_MASK | _PAGE_USER)) != _KERNPG_TABLE; -+ return (pud_val(pud) & ~(PTE_PFN_MASK | _PAGE_USER | _PAGE_NX)) != _KERNPG_TABLE; - } - - static inline int pmd_bad(pmd_t pmd) - { -- return (pmd_val(pmd) & ~(PTE_PFN_MASK | _PAGE_USER)) != _KERNPG_TABLE; -+ return (pmd_val(pmd) & ~(PTE_PFN_MASK | _PAGE_USER | _PAGE_NX)) != _KERNPG_TABLE; - } - - #define pte_none(x) (!pte_val((x))) -diff -urNp linux-2.6.28.8/arch/x86/include/asm/pgtable.h linux-2.6.28.8/arch/x86/include/asm/pgtable.h ---- linux-2.6.28.8/arch/x86/include/asm/pgtable.h 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/x86/include/asm/pgtable.h 2009-02-21 09:37:48.000000000 -0500 -@@ -14,12 +14,11 @@ - #define _PAGE_BIT_PSE 7 /* 4 MB (or 2MB) page */ - #define _PAGE_BIT_PAT 7 /* on 4KB pages */ - #define _PAGE_BIT_GLOBAL 8 /* Global TLB entry PPro+ */ --#define _PAGE_BIT_UNUSED1 9 /* available for programmer */ -+#define _PAGE_BIT_SPECIAL 9 /* special mappings, no associated struct page */ - #define _PAGE_BIT_IOMAP 10 /* flag used to indicate IO mapping */ - #define _PAGE_BIT_UNUSED3 11 - #define _PAGE_BIT_PAT_LARGE 12 /* On 2MB or 1GB pages */ --#define _PAGE_BIT_SPECIAL _PAGE_BIT_UNUSED1 --#define _PAGE_BIT_CPA_TEST _PAGE_BIT_UNUSED1 -+#define _PAGE_BIT_CPA_TEST _PAGE_BIT_SPECIAL - #define _PAGE_BIT_NX 63 /* No execute: only valid after cpuid check */ - - #define _PAGE_PRESENT (_AT(pteval_t, 1) << _PAGE_BIT_PRESENT) -@@ -31,7 +30,6 @@ - #define _PAGE_DIRTY (_AT(pteval_t, 1) << _PAGE_BIT_DIRTY) - #define _PAGE_PSE (_AT(pteval_t, 1) << _PAGE_BIT_PSE) - #define _PAGE_GLOBAL (_AT(pteval_t, 1) << _PAGE_BIT_GLOBAL) --#define _PAGE_UNUSED1 (_AT(pteval_t, 1) << _PAGE_BIT_UNUSED1) - #define _PAGE_IOMAP (_AT(pteval_t, 1) << _PAGE_BIT_IOMAP) - #define _PAGE_UNUSED3 (_AT(pteval_t, 1) << _PAGE_BIT_UNUSED3) - #define _PAGE_PAT (_AT(pteval_t, 1) << _PAGE_BIT_PAT) -@@ -43,7 +41,7 @@ - #if defined(CONFIG_X86_64) || defined(CONFIG_X86_PAE) - #define _PAGE_NX (_AT(pteval_t, 1) << _PAGE_BIT_NX) - #else --#define _PAGE_NX (_AT(pteval_t, 0)) -+#define _PAGE_NX (_AT(pteval_t, 1) << _PAGE_BIT_UNUSED3) - #endif - - /* If _PAGE_PRESENT is clear, we use these: */ -@@ -83,6 +81,9 @@ - #define PAGE_READONLY_EXEC __pgprot(_PAGE_PRESENT | _PAGE_USER | \ - _PAGE_ACCESSED) - -+#define PAGE_READONLY_NOEXEC PAGE_READONLY -+#define PAGE_SHARED_NOEXEC PAGE_SHARED -+ - #define __PAGE_KERNEL_EXEC \ - (_PAGE_PRESENT | _PAGE_RW | _PAGE_DIRTY | _PAGE_ACCESSED | _PAGE_GLOBAL) - #define __PAGE_KERNEL (__PAGE_KERNEL_EXEC | _PAGE_NX) -@@ -94,7 +95,7 @@ - #define __PAGE_KERNEL_NOCACHE (__PAGE_KERNEL | _PAGE_PCD | _PAGE_PWT) - #define __PAGE_KERNEL_UC_MINUS (__PAGE_KERNEL | _PAGE_PCD) - #define __PAGE_KERNEL_VSYSCALL (__PAGE_KERNEL_RX | _PAGE_USER) --#define __PAGE_KERNEL_VSYSCALL_NOCACHE (__PAGE_KERNEL_VSYSCALL | _PAGE_PCD | _PAGE_PWT) -+#define __PAGE_KERNEL_VSYSCALL_NOCACHE (__PAGE_KERNEL_RO | _PAGE_PCD | _PAGE_PWT | _PAGE_USER) - #define __PAGE_KERNEL_LARGE (__PAGE_KERNEL | _PAGE_PSE) - #define __PAGE_KERNEL_LARGE_NOCACHE (__PAGE_KERNEL | _PAGE_CACHE_UC | _PAGE_PSE) - #define __PAGE_KERNEL_LARGE_EXEC (__PAGE_KERNEL_EXEC | _PAGE_PSE) -@@ -153,7 +154,7 @@ - * bits are combined, this will alow user to access the high address mapped - * VDSO in the presence of CONFIG_COMPAT_VDSO - */ --#define PTE_IDENT_ATTR 0x003 /* PRESENT+RW */ -+#define PTE_IDENT_ATTR 0x063 /* PRESENT+RW+DIRTY+ACCESSED */ - #define PDE_IDENT_ATTR 0x067 /* PRESENT+RW+USER+DIRTY+ACCESSED */ - #define PGD_IDENT_ATTR 0x001 /* PRESENT (no other attributes) */ - #endif -@@ -170,10 +171,17 @@ extern unsigned long empty_zero_page[PAG - extern spinlock_t pgd_lock; - extern struct list_head pgd_list; - -+extern pteval_t __supported_pte_mask; -+ - /* - * The following only work if pte_present() is true. - * Undefined behaviour if not.. - */ -+static inline int pte_user(pte_t pte) -+{ -+ return pte_val(pte) & _PAGE_USER; -+} -+ - static inline int pte_dirty(pte_t pte) - { - return pte_flags(pte) & _PAGE_DIRTY; -@@ -242,9 +250,29 @@ static inline pte_t pte_wrprotect(pte_t - return __pte(pte_val(pte) & ~_PAGE_RW); - } - -+static inline pte_t pte_mkread(pte_t pte) -+{ -+ return __pte(pte_val(pte) | _PAGE_USER); -+} -+ - static inline pte_t pte_mkexec(pte_t pte) - { -- return __pte(pte_val(pte) & ~_PAGE_NX); -+#ifdef CONFIG_X86_PAE -+ if (__supported_pte_mask & _PAGE_NX) -+ return __pte(pte_val(pte) & ~(pteval_t)_PAGE_NX); -+ else -+#endif -+ return __pte(pte_val(pte) | _PAGE_USER); -+} -+ -+static inline pte_t pte_exprotect(pte_t pte) -+{ -+#ifdef CONFIG_X86_PAE -+ if (__supported_pte_mask & _PAGE_NX) -+ return __pte(pte_val(pte) | _PAGE_NX); -+ else -+#endif -+ return __pte(pte_val(pte) & ~_PAGE_USER); - } - - static inline pte_t pte_mkdirty(pte_t pte) -@@ -287,8 +315,6 @@ static inline pte_t pte_mkspecial(pte_t - return __pte(pte_val(pte) | _PAGE_SPECIAL); - } - --extern pteval_t __supported_pte_mask; -- - static inline pte_t pfn_pte(unsigned long page_nr, pgprot_t pgprot) - { - return __pte((((phys_addr_t)page_nr << PAGE_SHIFT) | -@@ -552,7 +578,19 @@ static inline void ptep_set_wrprotect(st - */ - static inline void clone_pgd_range(pgd_t *dst, pgd_t *src, int count) - { -- memcpy(dst, src, count * sizeof(pgd_t)); -+ -+#ifdef CONFIG_PAX_KERNEXEC -+ unsigned long cr0; -+ -+ pax_open_kernel(cr0); -+#endif -+ -+ memcpy(dst, src, count * sizeof(pgd_t)); -+ -+#ifdef CONFIG_PAX_KERNEXEC -+ pax_close_kernel(cr0); -+#endif -+ - } - - -diff -urNp linux-2.6.28.8/arch/x86/include/asm/processor.h linux-2.6.28.8/arch/x86/include/asm/processor.h ---- linux-2.6.28.8/arch/x86/include/asm/processor.h 2009-03-07 10:24:49.000000000 -0500 -+++ linux-2.6.28.8/arch/x86/include/asm/processor.h 2009-03-07 10:29:51.000000000 -0500 -@@ -271,7 +271,7 @@ struct tss_struct { - - } ____cacheline_aligned; - --DECLARE_PER_CPU(struct tss_struct, init_tss); -+extern struct tss_struct init_tss[NR_CPUS]; - - /* - * Save the original ist values for checking stack pointers during debugging -@@ -822,11 +822,20 @@ static inline void spin_lock_prefetch(co - * User space process size: 3GB (default). - */ - #define TASK_SIZE PAGE_OFFSET -+ -+#ifdef CONFIG_PAX_SEGMEXEC -+#define SEGMEXEC_TASK_SIZE (TASK_SIZE / 2) -+#endif -+ -+#ifdef CONFIG_PAX_SEGMEXEC -+#define STACK_TOP ((current->mm->pax_flags & MF_PAX_SEGMEXEC)?SEGMEXEC_TASK_SIZE:TASK_SIZE) -+#else - #define STACK_TOP TASK_SIZE --#define STACK_TOP_MAX STACK_TOP -+#endif -+#define STACK_TOP_MAX TASK_SIZE - - #define INIT_THREAD { \ -- .sp0 = sizeof(init_stack) + (long)&init_stack, \ -+ .sp0 = sizeof(init_stack) + (long)&init_stack - 8, \ - .vm86_info = NULL, \ - .sysenter_cs = __KERNEL_CS, \ - .io_bitmap_ptr = NULL, \ -@@ -841,7 +850,7 @@ static inline void spin_lock_prefetch(co - */ - #define INIT_TSS { \ - .x86_tss = { \ -- .sp0 = sizeof(init_stack) + (long)&init_stack, \ -+ .sp0 = sizeof(init_stack) + (long)&init_stack - 8, \ - .ss0 = __KERNEL_DS, \ - .ss1 = __KERNEL_CS, \ - .io_bitmap_base = INVALID_IO_BITMAP_OFFSET, \ -@@ -852,11 +861,7 @@ static inline void spin_lock_prefetch(co - extern unsigned long thread_saved_pc(struct task_struct *tsk); - - #define THREAD_SIZE_LONGS (THREAD_SIZE/sizeof(unsigned long)) --#define KSTK_TOP(info) \ --({ \ -- unsigned long *__ptr = (unsigned long *)(info); \ -- (unsigned long)(&__ptr[THREAD_SIZE_LONGS]); \ --}) -+#define KSTK_TOP(info) ((info)->task.thread.sp0) - - /* - * The below -8 is to reserve 8 bytes on top of the ring0 stack. -@@ -871,7 +876,7 @@ extern unsigned long thread_saved_pc(str - #define task_pt_regs(task) \ - ({ \ - struct pt_regs *__regs__; \ -- __regs__ = (struct pt_regs *)(KSTK_TOP(task_stack_page(task))-8); \ -+ __regs__ = (struct pt_regs *)((task)->thread.sp0); \ - __regs__ - 1; \ - }) - -@@ -887,7 +892,7 @@ extern unsigned long thread_saved_pc(str - * space during mmap's. - */ - #define IA32_PAGE_OFFSET ((current->personality & ADDR_LIMIT_3GB) ? \ -- 0xc0000000 : 0xFFFFe000) -+ 0xc0000000 : 0xFFFFf000) - - #define TASK_SIZE (test_thread_flag(TIF_IA32) ? \ - IA32_PAGE_OFFSET : TASK_SIZE64) -@@ -924,6 +929,10 @@ extern void start_thread(struct pt_regs - */ - #define TASK_UNMAPPED_BASE (PAGE_ALIGN(TASK_SIZE / 3)) - -+#ifdef CONFIG_PAX_SEGMEXEC -+#define SEGMEXEC_TASK_UNMAPPED_BASE (PAGE_ALIGN(SEGMEXEC_TASK_SIZE / 3)) -+#endif -+ - #define KSTK_EIP(task) (task_pt_regs(task)->ip) - - /* Get/set a process' ability to use the timestamp counter instruction */ -diff -urNp linux-2.6.28.8/arch/x86/include/asm/ptrace.h linux-2.6.28.8/arch/x86/include/asm/ptrace.h ---- linux-2.6.28.8/arch/x86/include/asm/ptrace.h 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/x86/include/asm/ptrace.h 2009-02-21 09:37:48.000000000 -0500 -@@ -187,28 +187,29 @@ static inline unsigned long regs_return_ - } - - /* -- * user_mode_vm(regs) determines whether a register set came from user mode. -+ * user_mode(regs) determines whether a register set came from user mode. - * This is true if V8086 mode was enabled OR if the register set was from - * protected mode with RPL-3 CS value. This tricky test checks that with - * one comparison. Many places in the kernel can bypass this full check -- * if they have already ruled out V8086 mode, so user_mode(regs) can be used. -+ * if they have already ruled out V8086 mode, so user_mode_novm(regs) can -+ * be used. - */ --static inline int user_mode(struct pt_regs *regs) -+static inline int user_mode_novm(struct pt_regs *regs) - { - #ifdef CONFIG_X86_32 - return (regs->cs & SEGMENT_RPL_MASK) == USER_RPL; - #else -- return !!(regs->cs & 3); -+ return !!(regs->cs & SEGMENT_RPL_MASK); - #endif - } - --static inline int user_mode_vm(struct pt_regs *regs) -+static inline int user_mode(struct pt_regs *regs) - { - #ifdef CONFIG_X86_32 - return ((regs->cs & SEGMENT_RPL_MASK) | (regs->flags & X86_VM_MASK)) >= - USER_RPL; - #else -- return user_mode(regs); -+ return user_mode_novm(regs); - #endif - } - -diff -urNp linux-2.6.28.8/arch/x86/include/asm/reboot.h linux-2.6.28.8/arch/x86/include/asm/reboot.h ---- linux-2.6.28.8/arch/x86/include/asm/reboot.h 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/x86/include/asm/reboot.h 2009-02-21 09:37:48.000000000 -0500 -@@ -16,6 +16,6 @@ extern struct machine_ops machine_ops; - - void native_machine_crash_shutdown(struct pt_regs *regs); - void native_machine_shutdown(void); --void machine_real_restart(const unsigned char *code, int length); -+void machine_real_restart(const unsigned char *code, unsigned int length); - - #endif /* _ASM_X86_REBOOT_H */ -diff -urNp linux-2.6.28.8/arch/x86/include/asm/rwsem.h linux-2.6.28.8/arch/x86/include/asm/rwsem.h ---- linux-2.6.28.8/arch/x86/include/asm/rwsem.h 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/x86/include/asm/rwsem.h 2009-02-21 09:37:48.000000000 -0500 -@@ -106,10 +106,26 @@ static inline void __down_read(struct rw - { - asm volatile("# beginning down_read\n\t" - LOCK_PREFIX " incl (%%eax)\n\t" -+ -+#ifdef CONFIG_PAX_REFCOUNT -+#ifdef CONFIG_X86_32 -+ "into\n0:\n" -+#else -+ "jno 0f\n" -+ "int $4\n0:\n" -+#endif -+ ".pushsection .fixup,\"ax\"\n" -+ "1:\n" -+ LOCK_PREFIX "decl (%%eax)\n" -+ "jmp 0b\n" -+ ".popsection\n" -+ _ASM_EXTABLE(0b, 1b) -+#endif -+ - /* adds 0x00000001, returns the old value */ -- " jns 1f\n" -+ " jns 2f\n" - " call call_rwsem_down_read_failed\n" -- "1:\n\t" -+ "2:\n\t" - "# ending down_read\n\t" - : "+m" (sem->count) - : "a" (sem) -@@ -124,13 +140,29 @@ static inline int __down_read_trylock(st - __s32 result, tmp; - asm volatile("# beginning __down_read_trylock\n\t" - " movl %0,%1\n\t" -- "1:\n\t" -+ "2:\n\t" - " movl %1,%2\n\t" - " addl %3,%2\n\t" -- " jle 2f\n\t" -+ -+#ifdef CONFIG_PAX_REFCOUNT -+#ifdef CONFIG_X86_32 -+ "into\n0:\n" -+#else -+ "jno 0f\n" -+ "int $4\n0:\n" -+#endif -+ ".pushsection .fixup,\"ax\"\n" -+ "1:\n" -+ "subl %3,%2\n" -+ "jmp 0b\n" -+ ".popsection\n" -+ _ASM_EXTABLE(0b, 1b) -+#endif -+ -+ " jle 3f\n\t" - LOCK_PREFIX " cmpxchgl %2,%0\n\t" -- " jnz 1b\n\t" -- "2:\n\t" -+ " jnz 2b\n\t" -+ "3:\n\t" - "# ending __down_read_trylock\n\t" - : "+m" (sem->count), "=&a" (result), "=&r" (tmp) - : "i" (RWSEM_ACTIVE_READ_BIAS) -@@ -148,12 +180,28 @@ static inline void __down_write_nested(s - tmp = RWSEM_ACTIVE_WRITE_BIAS; - asm volatile("# beginning down_write\n\t" - LOCK_PREFIX " xadd %%edx,(%%eax)\n\t" -+ -+#ifdef CONFIG_PAX_REFCOUNT -+#ifdef CONFIG_X86_32 -+ "into\n0:\n" -+#else -+ "jno 0f\n" -+ "int $4\n0:\n" -+#endif -+ ".pushsection .fixup,\"ax\"\n" -+ "1:\n" -+ "movl %%edx,(%%eax)\n" -+ "jmp 0b\n" -+ ".popsection\n" -+ _ASM_EXTABLE(0b, 1b) -+#endif -+ - /* subtract 0x0000ffff, returns the old value */ - " testl %%edx,%%edx\n\t" - /* was the count 0 before? */ -- " jz 1f\n" -+ " jz 2f\n" - " call call_rwsem_down_write_failed\n" -- "1:\n" -+ "2:\n" - "# ending down_write" - : "+m" (sem->count), "=d" (tmp) - : "a" (sem), "1" (tmp) -@@ -186,10 +234,26 @@ static inline void __up_read(struct rw_s - __s32 tmp = -RWSEM_ACTIVE_READ_BIAS; - asm volatile("# beginning __up_read\n\t" - LOCK_PREFIX " xadd %%edx,(%%eax)\n\t" -+ -+#ifdef CONFIG_PAX_REFCOUNT -+#ifdef CONFIG_X86_32 -+ "into\n0:\n" -+#else -+ "jno 0f\n" -+ "int $4\n0:\n" -+#endif -+ ".pushsection .fixup,\"ax\"\n" -+ "1:\n" -+ "movl %%edx,(%%eax)\n" -+ "jmp 0b\n" -+ ".popsection\n" -+ _ASM_EXTABLE(0b, 1b) -+#endif -+ - /* subtracts 1, returns the old value */ -- " jns 1f\n\t" -+ " jns 2f\n\t" - " call call_rwsem_wake\n" -- "1:\n" -+ "2:\n" - "# ending __up_read\n" - : "+m" (sem->count), "=d" (tmp) - : "a" (sem), "1" (tmp) -@@ -204,11 +268,27 @@ static inline void __up_write(struct rw_ - asm volatile("# beginning __up_write\n\t" - " movl %2,%%edx\n\t" - LOCK_PREFIX " xaddl %%edx,(%%eax)\n\t" -+ -+#ifdef CONFIG_PAX_REFCOUNT -+#ifdef CONFIG_X86_32 -+ "into\n0:\n" -+#else -+ "jno 0f\n" -+ "int $4\n0:\n" -+#endif -+ ".pushsection .fixup,\"ax\"\n" -+ "1:\n" -+ "movl %%edx,(%%eax)\n" -+ "jmp 0b\n" -+ ".popsection\n" -+ _ASM_EXTABLE(0b, 1b) -+#endif -+ - /* tries to transition - 0xffff0001 -> 0x00000000 */ -- " jz 1f\n" -+ " jz 2f\n" - " call call_rwsem_wake\n" -- "1:\n\t" -+ "2:\n\t" - "# ending __up_write\n" - : "+m" (sem->count) - : "a" (sem), "i" (-RWSEM_ACTIVE_WRITE_BIAS) -@@ -222,10 +302,26 @@ static inline void __downgrade_write(str - { - asm volatile("# beginning __downgrade_write\n\t" - LOCK_PREFIX " addl %2,(%%eax)\n\t" -+ -+#ifdef CONFIG_PAX_REFCOUNT -+#ifdef CONFIG_X86_32 -+ "into\n0:\n" -+#else -+ "jno 0f\n" -+ "int $4\n0:\n" -+#endif -+ ".pushsection .fixup,\"ax\"\n" -+ "1:\n" -+ LOCK_PREFIX "subl %2,(%%eax)\n" -+ "jmp 0b\n" -+ ".popsection\n" -+ _ASM_EXTABLE(0b, 1b) -+#endif -+ - /* transitions 0xZZZZ0001 -> 0xYYYY0001 */ -- " jns 1f\n\t" -+ " jns 2f\n\t" - " call call_rwsem_downgrade_wake\n" -- "1:\n\t" -+ "2:\n\t" - "# ending __downgrade_write\n" - : "+m" (sem->count) - : "a" (sem), "i" (-RWSEM_WAITING_BIAS) -@@ -237,7 +333,23 @@ static inline void __downgrade_write(str - */ - static inline void rwsem_atomic_add(int delta, struct rw_semaphore *sem) - { -- asm volatile(LOCK_PREFIX "addl %1,%0" -+ asm volatile(LOCK_PREFIX "addl %1,%0\n" -+ -+#ifdef CONFIG_PAX_REFCOUNT -+#ifdef CONFIG_X86_32 -+ "into\n0:\n" -+#else -+ "jno 0f\n" -+ "int $4\n0:\n" -+#endif -+ ".pushsection .fixup,\"ax\"\n" -+ "1:\n" -+ LOCK_PREFIX "subl %1,%0\n" -+ "jmp 0b\n" -+ ".popsection\n" -+ _ASM_EXTABLE(0b, 1b) -+#endif -+ - : "+m" (sem->count) - : "ir" (delta)); - } -@@ -249,7 +361,23 @@ static inline int rwsem_atomic_update(in - { - int tmp = delta; - -- asm volatile(LOCK_PREFIX "xadd %0,%1" -+ asm volatile(LOCK_PREFIX "xadd %0,%1\n" -+ -+#ifdef CONFIG_PAX_REFCOUNT -+#ifdef CONFIG_X86_32 -+ "into\n0:\n" -+#else -+ "jno 0f\n" -+ "int $4\n0:\n" -+#endif -+ ".pushsection .fixup,\"ax\"\n" -+ "1:\n" -+ "movl %0,%1\n" -+ "jmp 0b\n" -+ ".popsection\n" -+ _ASM_EXTABLE(0b, 1b) -+#endif -+ - : "+r" (tmp), "+m" (sem->count) - : : "memory"); - -diff -urNp linux-2.6.28.8/arch/x86/include/asm/segment.h linux-2.6.28.8/arch/x86/include/asm/segment.h ---- linux-2.6.28.8/arch/x86/include/asm/segment.h 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/x86/include/asm/segment.h 2009-02-21 09:37:48.000000000 -0500 -@@ -88,13 +88,19 @@ - #define GDT_ENTRY_ESPFIX_SS (GDT_ENTRY_KERNEL_BASE + 14) - #define __ESPFIX_SS (GDT_ENTRY_ESPFIX_SS * 8) - --#define GDT_ENTRY_PERCPU (GDT_ENTRY_KERNEL_BASE + 15) -+#define GDT_ENTRY_PERCPU (GDT_ENTRY_KERNEL_BASE + 15) - #ifdef CONFIG_SMP - #define __KERNEL_PERCPU (GDT_ENTRY_PERCPU * 8) - #else - #define __KERNEL_PERCPU 0 - #endif - -+#define GDT_ENTRY_PCIBIOS_CS (GDT_ENTRY_KERNEL_BASE + 16) -+#define __PCIBIOS_CS (GDT_ENTRY_PCIBIOS_CS * 8) -+ -+#define GDT_ENTRY_PCIBIOS_DS (GDT_ENTRY_KERNEL_BASE + 17) -+#define __PCIBIOS_DS (GDT_ENTRY_PCIBIOS_DS * 8) -+ - #define GDT_ENTRY_DOUBLEFAULT_TSS 31 - - /* -@@ -132,7 +138,7 @@ - */ - - /* Matches PNP_CS32 and PNP_CS16 (they must be consecutive) */ --#define SEGMENT_IS_PNP_CODE(x) (((x) & 0xf4) == GDT_ENTRY_PNPBIOS_BASE * 8) -+#define SEGMENT_IS_PNP_CODE(x) (((x) & 0xFFFCU) == PNP_CS32 || ((x) & 0xFFFCU) == PNP_CS16) - - - #else -diff -urNp linux-2.6.28.8/arch/x86/include/asm/spinlock.h linux-2.6.28.8/arch/x86/include/asm/spinlock.h ---- linux-2.6.28.8/arch/x86/include/asm/spinlock.h 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/x86/include/asm/spinlock.h 2009-02-21 09:37:48.000000000 -0500 -@@ -310,18 +310,50 @@ static inline int __raw_write_can_lock(r - static inline void __raw_read_lock(raw_rwlock_t *rw) - { - asm volatile(LOCK_PREFIX " subl $1,(%0)\n\t" -- "jns 1f\n" -- "call __read_lock_failed\n\t" -+ -+#ifdef CONFIG_PAX_REFCOUNT -+#ifdef CONFIG_X86_32 -+ "into\n0:\n" -+#else -+ "jno 0f\n" -+ "int $4\n0:\n" -+#endif -+ ".pushsection .fixup,\"ax\"\n" - "1:\n" -+ LOCK_PREFIX " addl $1,(%0)\n" -+ "jmp 0b\n" -+ ".popsection\n" -+ _ASM_EXTABLE(0b, 1b) -+#endif -+ -+ "jns 2f\n" -+ "call __read_lock_failed\n\t" -+ "2:\n" - ::LOCK_PTR_REG (rw) : "memory"); - } - - static inline void __raw_write_lock(raw_rwlock_t *rw) - { - asm volatile(LOCK_PREFIX " subl %1,(%0)\n\t" -- "jz 1f\n" -- "call __write_lock_failed\n\t" -+ -+#ifdef CONFIG_PAX_REFCOUNT -+#ifdef CONFIG_X86_32 -+ "into\n0:\n" -+#else -+ "jno 0f\n" -+ "int $4\n0:\n" -+#endif -+ ".pushsection .fixup,\"ax\"\n" - "1:\n" -+ LOCK_PREFIX " addl %1,(%0)\n" -+ "jmp 0b\n" -+ ".popsection\n" -+ _ASM_EXTABLE(0b, 1b) -+#endif -+ -+ "jz 2f\n" -+ "call __write_lock_failed\n\t" -+ "2:\n" - ::LOCK_PTR_REG (rw), "i" (RW_LOCK_BIAS) : "memory"); - } - -@@ -348,12 +380,45 @@ static inline int __raw_write_trylock(ra - - static inline void __raw_read_unlock(raw_rwlock_t *rw) - { -- asm volatile(LOCK_PREFIX "incl %0" :"+m" (rw->lock) : : "memory"); -+ asm volatile(LOCK_PREFIX "incl %0\n" -+ -+#ifdef CONFIG_PAX_REFCOUNT -+#ifdef CONFIG_X86_32 -+ "into\n0:\n" -+#else -+ "jno 0f\n" -+ "int $4\n0:\n" -+#endif -+ ".pushsection .fixup,\"ax\"\n" -+ "1:\n" -+ LOCK_PREFIX "decl %0\n" -+ "jmp 0b\n" -+ ".popsection\n" -+ _ASM_EXTABLE(0b, 1b) -+#endif -+ -+ :"+m" (rw->lock) : : "memory"); - } - - static inline void __raw_write_unlock(raw_rwlock_t *rw) - { -- asm volatile(LOCK_PREFIX "addl %1, %0" -+ asm volatile(LOCK_PREFIX "addl %1, %0\n" -+ -+#ifdef CONFIG_PAX_REFCOUNT -+#ifdef CONFIG_X86_32 -+ "into\n0:\n" -+#else -+ "jno 0f\n" -+ "int $4\n0:\n" -+#endif -+ ".pushsection .fixup,\"ax\"\n" -+ "1:\n" -+ LOCK_PREFIX "subl %1,%0\n" -+ "jmp 0b\n" -+ ".popsection\n" -+ _ASM_EXTABLE(0b, 1b) -+#endif -+ - : "+m" (rw->lock) : "i" (RW_LOCK_BIAS) : "memory"); - } - -diff -urNp linux-2.6.28.8/arch/x86/include/asm/system.h linux-2.6.28.8/arch/x86/include/asm/system.h ---- linux-2.6.28.8/arch/x86/include/asm/system.h 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/x86/include/asm/system.h 2009-02-21 09:37:48.000000000 -0500 -@@ -95,6 +95,8 @@ do { \ - ".globl thread_return\n" \ - "thread_return:\n\t" \ - "movq %%gs:%P[pda_pcurrent],%%rsi\n\t" \ -+ "movq %P[task_canary](%%rsi),%%r8\n\t" \ -+ "movq %%r8,%%gs:%P[pda_canary]\n\t" \ - "movq %P[thread_info](%%rsi),%%r8\n\t" \ - LOCK_PREFIX "btr %[tif_fork],%P[ti_flags](%%r8)\n\t" \ - "movq %%rax,%%rdi\n\t" \ -@@ -106,7 +108,9 @@ do { \ - [ti_flags] "i" (offsetof(struct thread_info, flags)), \ - [tif_fork] "i" (TIF_FORK), \ - [thread_info] "i" (offsetof(struct task_struct, stack)), \ -- [pda_pcurrent] "i" (offsetof(struct x8664_pda, pcurrent)) \ -+ [task_canary] "i" (offsetof(struct task_struct, stack_canary)), \ -+ [pda_pcurrent] "i" (offsetof(struct x8664_pda, pcurrent)), \ -+ [pda_canary] "i" (offsetof(struct x8664_pda, stack_canary))\ - : "memory", "cc" __EXTRA_CLOBBER) - #endif - -@@ -169,7 +173,7 @@ static inline unsigned long get_limit(un - { - unsigned long __limit; - asm("lsll %1,%0" : "=r" (__limit) : "r" (segment)); -- return __limit + 1; -+ return __limit; - } - - static inline void native_clts(void) -@@ -295,6 +299,21 @@ static inline void native_wbinvd(void) - - #define stts() write_cr0(read_cr0() | X86_CR0_TS) - -+#define pax_open_kernel(cr0) \ -+do { \ -+ typecheck(unsigned long, cr0); \ -+ preempt_disable(); \ -+ cr0 = read_cr0(); \ -+ write_cr0(cr0 & ~X86_CR0_WP); \ -+} while (0) -+ -+#define pax_close_kernel(cr0) \ -+do { \ -+ typecheck(unsigned long, cr0); \ -+ write_cr0(cr0); \ -+ preempt_enable_no_resched(); \ -+} while (0) -+ - #endif /* __KERNEL__ */ - - static inline void clflush(volatile void *__p) -@@ -309,7 +328,7 @@ void enable_hlt(void); - - void cpu_idle_wait(void); - --extern unsigned long arch_align_stack(unsigned long sp); -+#define arch_align_stack(x) ((x) & ~0xfUL) - extern void free_init_pages(char *what, unsigned long begin, unsigned long end); - - void default_idle(void); -diff -urNp linux-2.6.28.8/arch/x86/include/asm/uaccess_64.h linux-2.6.28.8/arch/x86/include/asm/uaccess_64.h ---- linux-2.6.28.8/arch/x86/include/asm/uaccess_64.h 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/x86/include/asm/uaccess_64.h 2009-02-21 09:37:48.000000000 -0500 -@@ -10,6 +10,8 @@ - #include <linux/lockdep.h> - #include <asm/page.h> - -+#define set_fs(x) (current_thread_info()->addr_limit = (x)) -+ - /* - * Copy To/From Userspace - */ -diff -urNp linux-2.6.28.8/arch/x86/include/asm/uaccess.h linux-2.6.28.8/arch/x86/include/asm/uaccess.h ---- linux-2.6.28.8/arch/x86/include/asm/uaccess.h 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/x86/include/asm/uaccess.h 2009-02-21 09:37:48.000000000 -0500 -@@ -10,6 +10,7 @@ - #include <linux/string.h> - #include <asm/asm.h> - #include <asm/page.h> -+#include <asm/segment.h> - - #define VERIFY_READ 0 - #define VERIFY_WRITE 1 -@@ -29,7 +30,12 @@ - - #define get_ds() (KERNEL_DS) - #define get_fs() (current_thread_info()->addr_limit) -+#ifdef CONFIG_X86_32 -+void __set_fs(mm_segment_t x, int cpu); -+void set_fs(mm_segment_t x); -+#else - #define set_fs(x) (current_thread_info()->addr_limit = (x)) -+#endif - - #define segment_eq(a, b) ((a).seg == (b).seg) - -@@ -186,9 +192,12 @@ extern int __get_user_bad(void); - - #ifdef CONFIG_X86_32 - #define __put_user_u64(x, addr, err) \ -- asm volatile("1: movl %%eax,0(%2)\n" \ -- "2: movl %%edx,4(%2)\n" \ -+ asm volatile(" movw %w5,%%ds\n" \ -+ "1: movl %%eax,%%ds:0(%2)\n" \ -+ "2: movl %%edx,%%ds:4(%2)\n" \ - "3:\n" \ -+ " pushl %%ss\n" \ -+ " popl %%ds\n" \ - ".section .fixup,\"ax\"\n" \ - "4: movl %3,%0\n" \ - " jmp 3b\n" \ -@@ -196,7 +205,8 @@ extern int __get_user_bad(void); - _ASM_EXTABLE(1b, 4b) \ - _ASM_EXTABLE(2b, 4b) \ - : "=r" (err) \ -- : "A" (x), "r" (addr), "i" (-EFAULT), "0" (err)) -+ : "A" (x), "r" (addr), "i" (-EFAULT), "0" (err), \ -+ "r"(__USER_DS)) - - #define __put_user_x8(x, ptr, __ret_pu) \ - asm volatile("call __put_user_8" : "=a" (__ret_pu) \ -@@ -336,6 +346,22 @@ do { \ - } \ - } while (0) - -+#ifdef CONFIG_X86_32 -+#define __get_user_asm(x, addr, err, itype, rtype, ltype, errret) \ -+ asm volatile(" movw %w5,%%ds\n" \ -+ "1: mov"itype" %%ds:%2,%"rtype"1\n" \ -+ "2:\n" \ -+ " pushl %%ss\n" \ -+ " popl %%ds\n" \ -+ ".section .fixup,\"ax\"\n" \ -+ "3: movl %3,%0\n" \ -+ " xor"itype" %"rtype"1,%"rtype"1\n" \ -+ " jmp 2b\n" \ -+ ".previous\n" \ -+ _ASM_EXTABLE(1b, 3b) \ -+ : "=r" (err), ltype (x) \ -+ : "m" (__m(addr)), "i" (errret), "0" (err), "r"(__USER_DS)) -+#else - #define __get_user_asm(x, addr, err, itype, rtype, ltype, errret) \ - asm volatile("1: mov"itype" %2,%"rtype"1\n" \ - "2:\n" \ -@@ -347,6 +373,7 @@ do { \ - _ASM_EXTABLE(1b, 3b) \ - : "=r" (err), ltype(x) \ - : "m" (__m(addr)), "i" (errret), "0" (err)) -+#endif - - #define __put_user_nocheck(x, ptr, size) \ - ({ \ -@@ -373,6 +400,22 @@ struct __large_struct { unsigned long bu - * we do not write to any memory gcc knows about, so there are no - * aliasing issues. - */ -+#ifdef CONFIG_X86_32 -+#define __put_user_asm(x, addr, err, itype, rtype, ltype, errret) \ -+ asm volatile(" movw %w5,%%ds\n" \ -+ "1: mov"itype" %"rtype"1,%%ds:%2\n" \ -+ "2:\n" \ -+ " pushl %%ss\n" \ -+ " popl %%ds\n" \ -+ ".section .fixup,\"ax\"\n" \ -+ "3: movl %3,%0\n" \ -+ " jmp 2b\n" \ -+ ".previous\n" \ -+ _ASM_EXTABLE(1b, 3b) \ -+ : "=r"(err) \ -+ : ltype (x), "m" (__m(addr)), "i" (errret), "0" (err),\ -+ "r"(__USER_DS)) -+#else - #define __put_user_asm(x, addr, err, itype, rtype, ltype, errret) \ - asm volatile("1: mov"itype" %"rtype"1,%2\n" \ - "2:\n" \ -@@ -383,6 +426,7 @@ struct __large_struct { unsigned long bu - _ASM_EXTABLE(1b, 3b) \ - : "=r"(err) \ - : ltype(x), "m" (__m(addr)), "i" (errret), "0" (err)) -+#endif - /** - * __get_user: - Get a simple variable from user space, with less checking. - * @x: Variable to store result. -@@ -443,6 +487,7 @@ extern struct movsl_mask { - - #define ARCH_HAS_NOCACHE_UACCESS 1 - -+#define ARCH_HAS_SORT_EXTABLE - #ifdef CONFIG_X86_32 - # include "uaccess_32.h" - #else -diff -urNp linux-2.6.28.8/arch/x86/Kconfig linux-2.6.28.8/arch/x86/Kconfig ---- linux-2.6.28.8/arch/x86/Kconfig 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/x86/Kconfig 2009-02-21 09:37:48.000000000 -0500 -@@ -935,7 +935,7 @@ config PAGE_OFFSET - hex - default 0xB0000000 if VMSPLIT_3G_OPT - default 0x80000000 if VMSPLIT_2G -- default 0x78000000 if VMSPLIT_2G_OPT -+ default 0x70000000 if VMSPLIT_2G_OPT - default 0x40000000 if VMSPLIT_1G - default 0xC0000000 - depends on X86_32 -@@ -1337,8 +1337,7 @@ config KEXEC_JUMP - config PHYSICAL_START - hex "Physical address where the kernel is loaded" if (EMBEDDED || CRASH_DUMP) - default "0x1000000" if X86_NUMAQ -- default "0x200000" if X86_64 -- default "0x100000" -+ default "0x200000" - help - This gives the physical address where the kernel is loaded. - -@@ -1430,9 +1429,9 @@ config HOTPLUG_CPU - Say N if you want to disable CPU hotplug. - - config COMPAT_VDSO -- def_bool y -+ def_bool n - prompt "Compat VDSO support" -- depends on X86_32 || IA32_EMULATION -+ depends on (X86_32 || IA32_EMULATION) && !PAX_NOEXEC - help - Map the 32-bit VDSO to the predictable old-style address too. - ---help--- -diff -urNp linux-2.6.28.8/arch/x86/Kconfig.cpu linux-2.6.28.8/arch/x86/Kconfig.cpu ---- linux-2.6.28.8/arch/x86/Kconfig.cpu 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/x86/Kconfig.cpu 2009-02-21 09:37:48.000000000 -0500 -@@ -331,7 +331,7 @@ config X86_PPRO_FENCE - - config X86_F00F_BUG - def_bool y -- depends on M586MMX || M586TSC || M586 || M486 || M386 -+ depends on (M586MMX || M586TSC || M586 || M486 || M386) && !PAX_KERNEXEC - - config X86_WP_WORKS_OK - def_bool y -@@ -351,7 +351,7 @@ config X86_POPAD_OK - - config X86_ALIGNMENT_16 - def_bool y -- depends on MWINCHIP3D || MWINCHIPC6 || MCYRIXIII || X86_ELAN || MK6 || M586MMX || M586TSC || M586 || M486 || MVIAC3_2 || MGEODEGX1 -+ depends on MWINCHIP3D || MWINCHIPC6 || MCYRIXIII || X86_ELAN || MK8 || MK7 || MK6 || MCORE2 || MPENTIUM4 || MPENTIUMIII || MPENTIUMII || M686 || M586MMX || M586TSC || M586 || M486 || MVIAC3_2 || MGEODEGX1 - - config X86_INTEL_USERCOPY - def_bool y -@@ -397,7 +397,7 @@ config X86_CMPXCHG64 - # generates cmov. - config X86_CMOV - def_bool y -- depends on (MK8 || MK7 || MCORE2 || MPENTIUM4 || MPENTIUMM || MPENTIUMIII || MPENTIUMII || M686 || MVIAC3_2 || MVIAC7 || MCRUSOE || MEFFICEON || X86_64) -+ depends on (MK8 || MK7 || MCORE2 || MPSC || MPENTIUM4 || MPENTIUMM || MPENTIUMIII || MPENTIUMII || M686 || MVIAC3_2 || MVIAC7 || MCRUSOE || MEFFICEON || X86_64) - - config X86_MINIMUM_CPU_FAMILY - int -diff -urNp linux-2.6.28.8/arch/x86/Kconfig.debug linux-2.6.28.8/arch/x86/Kconfig.debug ---- linux-2.6.28.8/arch/x86/Kconfig.debug 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/x86/Kconfig.debug 2009-02-21 09:37:48.000000000 -0500 -@@ -107,7 +107,7 @@ config X86_PTDUMP - config DEBUG_RODATA - bool "Write protect kernel read-only data structures" - default y -- depends on DEBUG_KERNEL -+ depends on DEBUG_KERNEL && BROKEN - help - Mark the kernel read-only data as write-protected in the pagetables, - in order to catch accidental (and incorrect) writes to such const -diff -urNp linux-2.6.28.8/arch/x86/kernel/acpi/boot.c linux-2.6.28.8/arch/x86/kernel/acpi/boot.c ---- linux-2.6.28.8/arch/x86/kernel/acpi/boot.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/x86/kernel/acpi/boot.c 2009-02-21 09:37:48.000000000 -0500 -@@ -1645,7 +1645,7 @@ static struct dmi_system_id __initdata a - DMI_MATCH(DMI_PRODUCT_NAME, "HP Compaq 6715b"), - }, - }, -- {} -+ { NULL, NULL, {{0, {0}}}, NULL} - }; - - /* -diff -urNp linux-2.6.28.8/arch/x86/kernel/acpi/realmode/wakeup.S linux-2.6.28.8/arch/x86/kernel/acpi/realmode/wakeup.S ---- linux-2.6.28.8/arch/x86/kernel/acpi/realmode/wakeup.S 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/x86/kernel/acpi/realmode/wakeup.S 2009-02-21 09:37:48.000000000 -0500 -@@ -104,7 +104,7 @@ _start: - movl %eax, %ecx - orl %edx, %ecx - jz 1f -- movl $0xc0000080, %ecx -+ mov $MSR_EFER, %ecx - wrmsr - 1: - -diff -urNp linux-2.6.28.8/arch/x86/kernel/acpi/sleep.c linux-2.6.28.8/arch/x86/kernel/acpi/sleep.c ---- linux-2.6.28.8/arch/x86/kernel/acpi/sleep.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/x86/kernel/acpi/sleep.c 2009-02-21 09:37:48.000000000 -0500 -@@ -37,6 +37,10 @@ int acpi_save_state_mem(void) - { - struct wakeup_header *header; - -+#if defined(CONFIG_64BIT) && defined(CONFIG_SMP) && defined(CONFIG_PAX_KERNEXEC) -+ unsigned long cr0; -+#endif -+ - if (!acpi_realmode) { - printk(KERN_ERR "Could not allocate memory during boot, " - "S3 disabled\n"); -@@ -99,8 +103,18 @@ int acpi_save_state_mem(void) - header->trampoline_segment = setup_trampoline() >> 4; - #ifdef CONFIG_SMP - stack_start.sp = temp_stack + sizeof(temp_stack); -+ -+#ifdef CONFIG_PAX_KERNEXEC -+ pax_open_kernel(cr0); -+#endif -+ - early_gdt_descr.address = - (unsigned long)get_cpu_gdt_table(smp_processor_id()); -+ -+#ifdef CONFIG_PAX_KERNEXEC -+ pax_close_kernel(cr0); -+#endif -+ - #endif - initial_code = (unsigned long)wakeup_long64; - saved_magic = 0x123456789abcdef0; -diff -urNp linux-2.6.28.8/arch/x86/kernel/acpi/wakeup_32.S linux-2.6.28.8/arch/x86/kernel/acpi/wakeup_32.S ---- linux-2.6.28.8/arch/x86/kernel/acpi/wakeup_32.S 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/x86/kernel/acpi/wakeup_32.S 2009-02-21 09:37:48.000000000 -0500 -@@ -30,13 +30,11 @@ wakeup_pmode_return: - # and restore the stack ... but you need gdt for this to work - movl saved_context_esp, %esp - -- movl %cs:saved_magic, %eax -- cmpl $0x12345678, %eax -+ cmpl $0x12345678, saved_magic - jne bogus_magic - - # jump to place where we left off -- movl saved_eip, %eax -- jmp *%eax -+ jmp *(saved_eip) - - bogus_magic: - jmp bogus_magic -diff -urNp linux-2.6.28.8/arch/x86/kernel/alternative.c linux-2.6.28.8/arch/x86/kernel/alternative.c ---- linux-2.6.28.8/arch/x86/kernel/alternative.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/x86/kernel/alternative.c 2009-02-21 09:37:48.000000000 -0500 -@@ -393,7 +393,7 @@ void apply_paravirt(struct paravirt_patc - - BUG_ON(p->len > MAX_PATCH_LEN); - /* prep the buffer with the original instructions */ -- memcpy(insnbuf, p->instr, p->len); -+ memcpy(insnbuf, ktla_ktva(p->instr), p->len); - used = pv_init_ops.patch(p->instrtype, p->clobbers, insnbuf, - (unsigned long)p->instr, p->len); - -@@ -473,11 +473,26 @@ void __init alternative_instructions(voi - * instructions. And on the local CPU you need to be protected again NMI or MCE - * handlers seeing an inconsistent instruction while you patch. - */ --void *text_poke_early(void *addr, const void *opcode, size_t len) -+void *__kprobes text_poke_early(void *addr, const void *opcode, size_t len) - { - unsigned long flags; -+ -+#ifdef CONFIG_PAX_KERNEXEC -+ unsigned long cr0; -+#endif -+ - local_irq_save(flags); -- memcpy(addr, opcode, len); -+ -+#ifdef CONFIG_PAX_KERNEXEC -+ pax_open_kernel(cr0); -+#endif -+ -+ memcpy(ktla_ktva(addr), opcode, len); -+ -+#ifdef CONFIG_PAX_KERNEXEC -+ pax_close_kernel(cr0); -+#endif -+ - local_irq_restore(flags); - sync_core(); - /* Could also do a CLFLUSH here to speed up CPU recovery; but -@@ -498,33 +513,27 @@ void *text_poke_early(void *addr, const - */ - void *__kprobes text_poke(void *addr, const void *opcode, size_t len) - { -- unsigned long flags; -- char *vaddr; -- int nr_pages = 2; -+ unsigned char *vaddr = ktla_ktva(addr); - struct page *pages[2]; -- int i; -+ size_t i; -+ -+ if (!core_kernel_text((unsigned long)addr) - -- if (!core_kernel_text((unsigned long)addr)) { -- pages[0] = vmalloc_to_page(addr); -- pages[1] = vmalloc_to_page(addr + PAGE_SIZE); -+#if defined(CONFIG_X86_32) && defined(CONFIG_MODULES) && defined(CONFIG_PAX_KERNEXEC) -+ && (vaddr < MODULES_VADDR || MODULES_END < vaddr) -+#endif -+ -+ ) { -+ pages[0] = vmalloc_to_page(vaddr); -+ pages[1] = vmalloc_to_page(vaddr + PAGE_SIZE); - } else { -- pages[0] = virt_to_page(addr); -+ pages[0] = virt_to_page(vaddr); - WARN_ON(!PageReserved(pages[0])); -- pages[1] = virt_to_page(addr + PAGE_SIZE); -+ pages[1] = virt_to_page(vaddr + PAGE_SIZE); - } - BUG_ON(!pages[0]); -- if (!pages[1]) -- nr_pages = 1; -- vaddr = vmap(pages, nr_pages, VM_MAP, PAGE_KERNEL); -- BUG_ON(!vaddr); -- local_irq_save(flags); -- memcpy(&vaddr[(unsigned long)addr & ~PAGE_MASK], opcode, len); -- local_irq_restore(flags); -- vunmap(vaddr); -- sync_core(); -- /* Could also do a CLFLUSH here to speed up CPU recovery; but -- that causes hangs on some VIA CPUs. */ -+ text_poke_early(addr, opcode, len); - for (i = 0; i < len; i++) -- BUG_ON(((char *)addr)[i] != ((char *)opcode)[i]); -+ BUG_ON((vaddr)[i] != ((unsigned char *)opcode)[i]); - return addr; - } -diff -urNp linux-2.6.28.8/arch/x86/kernel/apm_32.c linux-2.6.28.8/arch/x86/kernel/apm_32.c ---- linux-2.6.28.8/arch/x86/kernel/apm_32.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/x86/kernel/apm_32.c 2009-02-21 09:37:48.000000000 -0500 -@@ -407,7 +407,7 @@ static DECLARE_WAIT_QUEUE_HEAD(apm_waitq - static DECLARE_WAIT_QUEUE_HEAD(apm_suspend_waitqueue); - static struct apm_user *user_list; - static DEFINE_SPINLOCK(user_list_lock); --static const struct desc_struct bad_bios_desc = { { { 0, 0x00409200 } } }; -+static const struct desc_struct bad_bios_desc = { { { 0, 0x00409300 } } }; - - static const char driver_version[] = "1.16ac"; /* no spaces */ - -@@ -602,19 +602,42 @@ static u8 apm_bios_call(u32 func, u32 eb - struct desc_struct save_desc_40; - struct desc_struct *gdt; - -+#ifdef CONFIG_PAX_KERNEXEC -+ unsigned long cr0; -+#endif -+ - cpus = apm_save_cpus(); - - cpu = get_cpu(); - gdt = get_cpu_gdt_table(cpu); - save_desc_40 = gdt[0x40 / 8]; -+ -+#ifdef CONFIG_PAX_KERNEXEC -+ pax_open_kernel(cr0); -+#endif -+ - gdt[0x40 / 8] = bad_bios_desc; - -+#ifdef CONFIG_PAX_KERNEXEC -+ pax_close_kernel(cr0); -+#endif -+ - apm_irq_save(flags); - APM_DO_SAVE_SEGS; - apm_bios_call_asm(func, ebx_in, ecx_in, eax, ebx, ecx, edx, esi); - APM_DO_RESTORE_SEGS; - apm_irq_restore(flags); -+ -+#ifdef CONFIG_PAX_KERNEXEC -+ pax_open_kernel(cr0); -+#endif -+ - gdt[0x40 / 8] = save_desc_40; -+ -+#ifdef CONFIG_PAX_KERNEXEC -+ pax_close_kernel(cr0); -+#endif -+ - put_cpu(); - apm_restore_cpus(cpus); - -@@ -645,19 +668,42 @@ static u8 apm_bios_call_simple(u32 func, - struct desc_struct save_desc_40; - struct desc_struct *gdt; - -+#ifdef CONFIG_PAX_KERNEXEC -+ unsigned long cr0; -+#endif -+ - cpus = apm_save_cpus(); - - cpu = get_cpu(); - gdt = get_cpu_gdt_table(cpu); - save_desc_40 = gdt[0x40 / 8]; -+ -+#ifdef CONFIG_PAX_KERNEXEC -+ pax_open_kernel(cr0); -+#endif -+ - gdt[0x40 / 8] = bad_bios_desc; - -+#ifdef CONFIG_PAX_KERNEXEC -+ pax_close_kernel(cr0); -+#endif -+ - apm_irq_save(flags); - APM_DO_SAVE_SEGS; - error = apm_bios_call_simple_asm(func, ebx_in, ecx_in, eax); - APM_DO_RESTORE_SEGS; - apm_irq_restore(flags); -+ -+#ifdef CONFIG_PAX_KERNEXEC -+ pax_open_kernel(cr0); -+#endif -+ - gdt[0x40 / 8] = save_desc_40; -+ -+#ifdef CONFIG_PAX_KERNEXEC -+ pax_close_kernel(cr0); -+#endif -+ - put_cpu(); - apm_restore_cpus(cpus); - return error; -@@ -929,7 +975,7 @@ recalc: - - static void apm_power_off(void) - { -- unsigned char po_bios_call[] = { -+ const unsigned char po_bios_call[] = { - 0xb8, 0x00, 0x10, /* movw $0x1000,ax */ - 0x8e, 0xd0, /* movw ax,ss */ - 0xbc, 0x00, 0xf0, /* movw $0xf000,sp */ -@@ -1876,7 +1922,10 @@ static const struct file_operations apm_ - static struct miscdevice apm_device = { - APM_MINOR_DEV, - "apm_bios", -- &apm_bios_fops -+ &apm_bios_fops, -+ {NULL, NULL}, -+ NULL, -+ NULL - }; - - -@@ -2197,7 +2246,7 @@ static struct dmi_system_id __initdata a - { DMI_MATCH(DMI_SYS_VENDOR, "IBM"), }, - }, - -- { } -+ { NULL, NULL, {DMI_MATCH(DMI_NONE, {0})}, NULL} - }; - - /* -@@ -2215,6 +2264,10 @@ static int __init apm_init(void) - struct desc_struct *gdt; - int err; - -+#ifdef CONFIG_PAX_KERNEXEC -+ unsigned long cr0; -+#endif -+ - dmi_check_system(apm_dmi_table); - - if (apm_info.bios.version == 0 || paravirt_enabled() || machine_is_olpc()) { -@@ -2288,9 +2341,18 @@ static int __init apm_init(void) - * This is for buggy BIOS's that refer to (real mode) segment 0x40 - * even though they are called in protected mode. - */ -+ -+#ifdef CONFIG_PAX_KERNEXEC -+ pax_open_kernel(cr0); -+#endif -+ - set_base(bad_bios_desc, __va((unsigned long)0x40 << 4)); - _set_limit((char *)&bad_bios_desc, 4095 - (0x40 << 4)); - -+#ifdef CONFIG_PAX_KERNEXEC -+ pax_close_kernel(cr0); -+#endif -+ - /* - * Set up the long jump entry point to the APM BIOS, which is called - * from inline assembly. -@@ -2309,6 +2371,11 @@ static int __init apm_init(void) - * code to that CPU. - */ - gdt = get_cpu_gdt_table(0); -+ -+#ifdef CONFIG_PAX_KERNEXEC -+ pax_open_kernel(cr0); -+#endif -+ - set_base(gdt[APM_CS >> 3], - __va((unsigned long)apm_info.bios.cseg << 4)); - set_base(gdt[APM_CS_16 >> 3], -@@ -2316,6 +2383,10 @@ static int __init apm_init(void) - set_base(gdt[APM_DS >> 3], - __va((unsigned long)apm_info.bios.dseg << 4)); - -+#ifdef CONFIG_PAX_KERNEXEC -+ pax_close_kernel(cr0); -+#endif -+ - proc_create("apm", 0, NULL, &apm_file_ops); - - kapmd_task = kthread_create(apm, NULL, "kapmd"); -diff -urNp linux-2.6.28.8/arch/x86/kernel/asm-offsets_32.c linux-2.6.28.8/arch/x86/kernel/asm-offsets_32.c ---- linux-2.6.28.8/arch/x86/kernel/asm-offsets_32.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/x86/kernel/asm-offsets_32.c 2009-02-21 09:37:48.000000000 -0500 -@@ -100,6 +100,7 @@ void foo(void) - DEFINE(PTRS_PER_PTE, PTRS_PER_PTE); - DEFINE(PTRS_PER_PMD, PTRS_PER_PMD); - DEFINE(PTRS_PER_PGD, PTRS_PER_PGD); -+ DEFINE(PERCPU_MODULE_RESERVE, PERCPU_MODULE_RESERVE); - - OFFSET(crypto_tfm_ctx_offset, crypto_tfm, __crt_ctx); - -@@ -113,6 +114,7 @@ void foo(void) - OFFSET(PV_CPU_iret, pv_cpu_ops, iret); - OFFSET(PV_CPU_irq_enable_sysexit, pv_cpu_ops, irq_enable_sysexit); - OFFSET(PV_CPU_read_cr0, pv_cpu_ops, read_cr0); -+ OFFSET(PV_CPU_write_cr0, pv_cpu_ops, write_cr0); - #endif - - #ifdef CONFIG_XEN -diff -urNp linux-2.6.28.8/arch/x86/kernel/asm-offsets_64.c linux-2.6.28.8/arch/x86/kernel/asm-offsets_64.c ---- linux-2.6.28.8/arch/x86/kernel/asm-offsets_64.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/x86/kernel/asm-offsets_64.c 2009-02-21 09:37:48.000000000 -0500 -@@ -122,6 +122,7 @@ int main(void) - ENTRY(cr8); - BLANK(); - #undef ENTRY -+ DEFINE(TSS_size, sizeof(struct tss_struct)); - DEFINE(TSS_ist, offsetof(struct tss_struct, x86_tss.ist)); - BLANK(); - DEFINE(crypto_tfm_ctx_offset, offsetof(struct crypto_tfm, __crt_ctx)); -diff -urNp linux-2.6.28.8/arch/x86/kernel/cpu/common.c linux-2.6.28.8/arch/x86/kernel/cpu/common.c ---- linux-2.6.28.8/arch/x86/kernel/cpu/common.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/x86/kernel/cpu/common.c 2009-02-21 09:37:48.000000000 -0500 -@@ -2,7 +2,6 @@ - #include <linux/kernel.h> - #include <linux/sched.h> - #include <linux/string.h> --#include <linux/bootmem.h> - #include <linux/bitops.h> - #include <linux/module.h> - #include <linux/kgdb.h> -@@ -41,59 +40,6 @@ - - static struct cpu_dev *this_cpu __cpuinitdata; - --#ifdef CONFIG_X86_64 --/* We need valid kernel segments for data and code in long mode too -- * IRET will check the segment types kkeil 2000/10/28 -- * Also sysret mandates a special GDT layout -- */ --/* The TLS descriptors are currently at a different place compared to i386. -- Hopefully nobody expects them at a fixed place (Wine?) */ --DEFINE_PER_CPU(struct gdt_page, gdt_page) = { .gdt = { -- [GDT_ENTRY_KERNEL32_CS] = { { { 0x0000ffff, 0x00cf9b00 } } }, -- [GDT_ENTRY_KERNEL_CS] = { { { 0x0000ffff, 0x00af9b00 } } }, -- [GDT_ENTRY_KERNEL_DS] = { { { 0x0000ffff, 0x00cf9300 } } }, -- [GDT_ENTRY_DEFAULT_USER32_CS] = { { { 0x0000ffff, 0x00cffb00 } } }, -- [GDT_ENTRY_DEFAULT_USER_DS] = { { { 0x0000ffff, 0x00cff300 } } }, -- [GDT_ENTRY_DEFAULT_USER_CS] = { { { 0x0000ffff, 0x00affb00 } } }, --} }; --#else --DEFINE_PER_CPU_PAGE_ALIGNED(struct gdt_page, gdt_page) = { .gdt = { -- [GDT_ENTRY_KERNEL_CS] = { { { 0x0000ffff, 0x00cf9a00 } } }, -- [GDT_ENTRY_KERNEL_DS] = { { { 0x0000ffff, 0x00cf9200 } } }, -- [GDT_ENTRY_DEFAULT_USER_CS] = { { { 0x0000ffff, 0x00cffa00 } } }, -- [GDT_ENTRY_DEFAULT_USER_DS] = { { { 0x0000ffff, 0x00cff200 } } }, -- /* -- * Segments used for calling PnP BIOS have byte granularity. -- * They code segments and data segments have fixed 64k limits, -- * the transfer segment sizes are set at run time. -- */ -- /* 32-bit code */ -- [GDT_ENTRY_PNPBIOS_CS32] = { { { 0x0000ffff, 0x00409a00 } } }, -- /* 16-bit code */ -- [GDT_ENTRY_PNPBIOS_CS16] = { { { 0x0000ffff, 0x00009a00 } } }, -- /* 16-bit data */ -- [GDT_ENTRY_PNPBIOS_DS] = { { { 0x0000ffff, 0x00009200 } } }, -- /* 16-bit data */ -- [GDT_ENTRY_PNPBIOS_TS1] = { { { 0x00000000, 0x00009200 } } }, -- /* 16-bit data */ -- [GDT_ENTRY_PNPBIOS_TS2] = { { { 0x00000000, 0x00009200 } } }, -- /* -- * The APM segments have byte granularity and their bases -- * are set at run time. All have 64k limits. -- */ -- /* 32-bit code */ -- [GDT_ENTRY_APMBIOS_BASE] = { { { 0x0000ffff, 0x00409a00 } } }, -- /* 16-bit code */ -- [GDT_ENTRY_APMBIOS_BASE+1] = { { { 0x0000ffff, 0x00009a00 } } }, -- /* data */ -- [GDT_ENTRY_APMBIOS_BASE+2] = { { { 0x0000ffff, 0x00409200 } } }, -- -- [GDT_ENTRY_ESPFIX_SS] = { { { 0x00000000, 0x00c09200 } } }, -- [GDT_ENTRY_PERCPU] = { { { 0x00000000, 0x00000000 } } }, --} }; --#endif --EXPORT_PER_CPU_SYMBOL_GPL(gdt_page); -- - #ifdef CONFIG_X86_32 - static int cachesize_override __cpuinitdata = -1; - static int disable_x86_serial_nr __cpuinitdata = 1; -@@ -227,7 +173,7 @@ void switch_to_new_gdt(void) - { - struct desc_ptr gdt_descr; - -- gdt_descr.address = (long)get_cpu_gdt_table(smp_processor_id()); -+ gdt_descr.address = (unsigned long)get_cpu_gdt_table(smp_processor_id()); - gdt_descr.size = GDT_SIZE - 1; - load_gdt(&gdt_descr); - #ifdef CONFIG_X86_32 -@@ -687,6 +633,10 @@ static void __cpuinit identify_cpu(struc - * we do "generic changes." - */ - -+#if defined(CONFIG_PAX_SEGMEXEC) || defined(CONFIG_PAX_KERNEXEC) || defined(CONFIG_PAX_MEMORY_UDEREF) -+ setup_clear_cpu_cap(X86_FEATURE_SEP); -+#endif -+ - /* If the model name is still unset, do table lookup. */ - if (!c->x86_model_id[0]) { - char *p; -@@ -854,13 +804,13 @@ static __init int setup_disablecpuid(cha - } - __setup("clearcpuid=", setup_disablecpuid); - --cpumask_t cpu_initialized __cpuinitdata = CPU_MASK_NONE; -+cpumask_t cpu_initialized = CPU_MASK_NONE; - - #ifdef CONFIG_X86_64 - struct x8664_pda **_cpu_pda __read_mostly; - EXPORT_SYMBOL(_cpu_pda); - --struct desc_ptr idt_descr = { 256 * 16 - 1, (unsigned long) idt_table }; -+struct desc_ptr idt_descr __read_only = { 256 * 16 - 1, (unsigned long) idt_table }; - - char boot_cpu_stack[IRQSTACKSIZE] __page_aligned_bss; - -@@ -959,7 +909,7 @@ struct pt_regs * __cpuinit idle_regs(str - void __cpuinit cpu_init(void) - { - int cpu = stack_smp_processor_id(); -- struct tss_struct *t = &per_cpu(init_tss, cpu); -+ struct tss_struct *t = init_tss + cpu; - struct orig_ist *orig_ist = &per_cpu(orig_ist, cpu); - unsigned long v; - char *estacks = NULL; -@@ -1080,7 +1030,7 @@ void __cpuinit cpu_init(void) - { - int cpu = smp_processor_id(); - struct task_struct *curr = current; -- struct tss_struct *t = &per_cpu(init_tss, cpu); -+ struct tss_struct *t = init_tss + cpu; - struct thread_struct *thread = &curr->thread; - - if (cpu_test_and_set(cpu, cpu_initialized)) { -diff -urNp linux-2.6.28.8/arch/x86/kernel/cpu/cpufreq/acpi-cpufreq.c linux-2.6.28.8/arch/x86/kernel/cpu/cpufreq/acpi-cpufreq.c ---- linux-2.6.28.8/arch/x86/kernel/cpu/cpufreq/acpi-cpufreq.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/x86/kernel/cpu/cpufreq/acpi-cpufreq.c 2009-02-21 09:37:48.000000000 -0500 -@@ -561,7 +561,7 @@ static const struct dmi_system_id sw_any - DMI_MATCH(DMI_PRODUCT_NAME, "X6DLP"), - }, - }, -- { } -+ { NULL, NULL, {DMI_MATCH(DMI_NONE, {0})}, NULL } - }; - #endif - -diff -urNp linux-2.6.28.8/arch/x86/kernel/cpu/cpufreq/speedstep-centrino.c linux-2.6.28.8/arch/x86/kernel/cpu/cpufreq/speedstep-centrino.c ---- linux-2.6.28.8/arch/x86/kernel/cpu/cpufreq/speedstep-centrino.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/x86/kernel/cpu/cpufreq/speedstep-centrino.c 2009-02-21 09:37:48.000000000 -0500 -@@ -225,7 +225,7 @@ static struct cpu_model models[] = - { &cpu_ids[CPU_MP4HT_D0], NULL, 0, NULL }, - { &cpu_ids[CPU_MP4HT_E0], NULL, 0, NULL }, - -- { NULL, } -+ { NULL, NULL, 0, NULL} - }; - #undef _BANIAS - #undef BANIAS -diff -urNp linux-2.6.28.8/arch/x86/kernel/cpu/intel.c linux-2.6.28.8/arch/x86/kernel/cpu/intel.c ---- linux-2.6.28.8/arch/x86/kernel/cpu/intel.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/x86/kernel/cpu/intel.c 2009-02-21 09:37:48.000000000 -0500 -@@ -72,7 +72,7 @@ static void __cpuinit trap_init_f00f_bug - * Update the IDT descriptor and reload the IDT so that - * it uses the read-only mapped virtual address. - */ -- idt_descr.address = fix_to_virt(FIX_F00F_IDT); -+ idt_descr.address = (struct desc_struct *)fix_to_virt(FIX_F00F_IDT); - load_idt(&idt_descr); - } - #endif -diff -urNp linux-2.6.28.8/arch/x86/kernel/cpu/mcheck/mce_64.c linux-2.6.28.8/arch/x86/kernel/cpu/mcheck/mce_64.c ---- linux-2.6.28.8/arch/x86/kernel/cpu/mcheck/mce_64.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/x86/kernel/cpu/mcheck/mce_64.c 2009-02-21 09:37:48.000000000 -0500 -@@ -678,6 +678,7 @@ static struct miscdevice mce_log_device - MISC_MCELOG_MINOR, - "mcelog", - &mce_chrdev_ops, -+ {NULL, NULL}, NULL, NULL - }; - - static unsigned long old_cr4 __initdata; -diff -urNp linux-2.6.28.8/arch/x86/kernel/cpu/mtrr/generic.c linux-2.6.28.8/arch/x86/kernel/cpu/mtrr/generic.c ---- linux-2.6.28.8/arch/x86/kernel/cpu/mtrr/generic.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/x86/kernel/cpu/mtrr/generic.c 2009-02-21 09:37:48.000000000 -0500 -@@ -31,11 +31,11 @@ static struct fixed_range_block fixed_ra - { MTRRfix64K_00000_MSR, 1 }, /* one 64k MTRR */ - { MTRRfix16K_80000_MSR, 2 }, /* two 16k MTRRs */ - { MTRRfix4K_C0000_MSR, 8 }, /* eight 4k MTRRs */ -- {} -+ { 0, 0 } - }; - - static unsigned long smp_changes_mask; --static struct mtrr_state mtrr_state = {}; -+static struct mtrr_state mtrr_state; - static int mtrr_state_set; - u64 mtrr_tom2; - -diff -urNp linux-2.6.28.8/arch/x86/kernel/crash.c linux-2.6.28.8/arch/x86/kernel/crash.c ---- linux-2.6.28.8/arch/x86/kernel/crash.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/x86/kernel/crash.c 2009-02-21 09:37:48.000000000 -0500 -@@ -59,7 +59,7 @@ static int crash_nmi_callback(struct not - local_irq_disable(); - - #ifdef CONFIG_X86_32 -- if (!user_mode_vm(regs)) { -+ if (!user_mode(regs)) { - crash_fixup_ss_esp(&fixed_regs, regs); - regs = &fixed_regs; - } -diff -urNp linux-2.6.28.8/arch/x86/kernel/doublefault_32.c linux-2.6.28.8/arch/x86/kernel/doublefault_32.c ---- linux-2.6.28.8/arch/x86/kernel/doublefault_32.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/x86/kernel/doublefault_32.c 2009-02-21 09:37:48.000000000 -0500 -@@ -11,7 +11,7 @@ - - #define DOUBLEFAULT_STACKSIZE (1024) - static unsigned long doublefault_stack[DOUBLEFAULT_STACKSIZE]; --#define STACK_START (unsigned long)(doublefault_stack+DOUBLEFAULT_STACKSIZE) -+#define STACK_START (unsigned long)(doublefault_stack+DOUBLEFAULT_STACKSIZE-2) - - #define ptr_ok(x) ((x) > PAGE_OFFSET && (x) < PAGE_OFFSET + MAXMEM) - -@@ -21,7 +21,7 @@ static void doublefault_fn(void) - unsigned long gdt, tss; - - store_gdt(&gdt_desc); -- gdt = gdt_desc.address; -+ gdt = (unsigned long)gdt_desc.address; - - printk(KERN_EMERG "PANIC: double fault, gdt at %08lx [%d bytes]\n", gdt, gdt_desc.size); - -@@ -60,10 +60,10 @@ struct tss_struct doublefault_tss __cach - /* 0x2 bit is always set */ - .flags = X86_EFLAGS_SF | 0x2, - .sp = STACK_START, -- .es = __USER_DS, -+ .es = __KERNEL_DS, - .cs = __KERNEL_CS, - .ss = __KERNEL_DS, -- .ds = __USER_DS, -+ .ds = __KERNEL_DS, - .fs = __KERNEL_PERCPU, - - .__cr3 = __pa_nodebug(swapper_pg_dir), -diff -urNp linux-2.6.28.8/arch/x86/kernel/dumpstack_32.c linux-2.6.28.8/arch/x86/kernel/dumpstack_32.c ---- linux-2.6.28.8/arch/x86/kernel/dumpstack_32.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/x86/kernel/dumpstack_32.c 2009-02-21 09:37:48.000000000 -0500 -@@ -238,11 +238,12 @@ void show_registers(struct pt_regs *regs - * When in-kernel, we also print out the stack and code at the - * time of the fault.. - */ -- if (!user_mode_vm(regs)) { -+ if (!user_mode(regs)) { - unsigned int code_prologue = code_bytes * 43 / 64; - unsigned int code_len = code_bytes; - unsigned char c; - u8 *ip; -+ unsigned long cs_base = get_desc_base(&get_cpu_gdt_table(smp_processor_id())[(0xffff & regs->cs) >> 3]); - - printk(KERN_EMERG "Stack:\n"); - show_stack_log_lvl(NULL, regs, ®s->sp, -@@ -250,10 +251,10 @@ void show_registers(struct pt_regs *regs - - printk(KERN_EMERG "Code: "); - -- ip = (u8 *)regs->ip - code_prologue; -+ ip = (u8 *)regs->ip - code_prologue + cs_base; - if (ip < (u8 *)PAGE_OFFSET || probe_kernel_address(ip, c)) { - /* try starting at IP */ -- ip = (u8 *)regs->ip; -+ ip = (u8 *)regs->ip + cs_base; - code_len = code_len - code_prologue + 1; - } - for (i = 0; i < code_len; i++, ip++) { -@@ -262,7 +263,7 @@ void show_registers(struct pt_regs *regs - printk(" Bad EIP value."); - break; - } -- if (ip == (u8 *)regs->ip) -+ if (ip == (u8 *)regs->ip + cs_base) - printk("<%02x> ", c); - else - printk("%02x ", c); -@@ -275,6 +276,7 @@ int is_valid_bugaddr(unsigned long ip) - { - unsigned short ud2; - -+ ip = ktla_ktva(ip); - if (ip < PAGE_OFFSET) - return 0; - if (probe_kernel_address((unsigned short *)ip, ud2)) -@@ -410,7 +412,7 @@ die_nmi(char *str, struct pt_regs *regs, - * If we are in kernel we are probably nested up pretty bad - * and might aswell get out now while we still can: - */ -- if (!user_mode_vm(regs)) { -+ if (!user_mode(regs)) { - current->thread.trap_no = 2; - crash_kexec(regs); - } -diff -urNp linux-2.6.28.8/arch/x86/kernel/efi_32.c linux-2.6.28.8/arch/x86/kernel/efi_32.c ---- linux-2.6.28.8/arch/x86/kernel/efi_32.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/x86/kernel/efi_32.c 2009-02-21 09:37:48.000000000 -0500 -@@ -38,70 +38,38 @@ - */ - - static unsigned long efi_rt_eflags; --static pgd_t efi_bak_pg_dir_pointer[2]; -+static pgd_t __initdata efi_bak_pg_dir_pointer[KERNEL_PGD_PTRS]; - --void efi_call_phys_prelog(void) -+void __init efi_call_phys_prelog(void) - { -- unsigned long cr4; -- unsigned long temp; - struct desc_ptr gdt_descr; - - local_irq_save(efi_rt_eflags); - -- /* -- * If I don't have PAE, I should just duplicate two entries in page -- * directory. If I have PAE, I just need to duplicate one entry in -- * page directory. -- */ -- cr4 = read_cr4_safe(); - -- if (cr4 & X86_CR4_PAE) { -- efi_bak_pg_dir_pointer[0].pgd = -- swapper_pg_dir[pgd_index(0)].pgd; -- swapper_pg_dir[0].pgd = -- swapper_pg_dir[pgd_index(PAGE_OFFSET)].pgd; -- } else { -- efi_bak_pg_dir_pointer[0].pgd = -- swapper_pg_dir[pgd_index(0)].pgd; -- efi_bak_pg_dir_pointer[1].pgd = -- swapper_pg_dir[pgd_index(0x400000)].pgd; -- swapper_pg_dir[pgd_index(0)].pgd = -- swapper_pg_dir[pgd_index(PAGE_OFFSET)].pgd; -- temp = PAGE_OFFSET + 0x400000; -- swapper_pg_dir[pgd_index(0x400000)].pgd = -- swapper_pg_dir[pgd_index(temp)].pgd; -- } -+ clone_pgd_range(efi_bak_pg_dir_pointer, swapper_pg_dir, KERNEL_PGD_PTRS); -+ clone_pgd_range(swapper_pg_dir, swapper_pg_dir + KERNEL_PGD_BOUNDARY, -+ min_t(unsigned long, KERNEL_PGD_PTRS, KERNEL_PGD_BOUNDARY)); - - /* - * After the lock is released, the original page table is restored. - */ - __flush_tlb_all(); - -- gdt_descr.address = __pa(get_cpu_gdt_table(0)); -+ gdt_descr.address = (struct desc_struct *)__pa(get_cpu_gdt_table(0)); - gdt_descr.size = GDT_SIZE - 1; - load_gdt(&gdt_descr); - } - --void efi_call_phys_epilog(void) -+void __init efi_call_phys_epilog(void) - { -- unsigned long cr4; - struct desc_ptr gdt_descr; - -- gdt_descr.address = (unsigned long)get_cpu_gdt_table(0); -+ gdt_descr.address = get_cpu_gdt_table(0); - gdt_descr.size = GDT_SIZE - 1; - load_gdt(&gdt_descr); - -- cr4 = read_cr4_safe(); -- -- if (cr4 & X86_CR4_PAE) { -- swapper_pg_dir[pgd_index(0)].pgd = -- efi_bak_pg_dir_pointer[0].pgd; -- } else { -- swapper_pg_dir[pgd_index(0)].pgd = -- efi_bak_pg_dir_pointer[0].pgd; -- swapper_pg_dir[pgd_index(0x400000)].pgd = -- efi_bak_pg_dir_pointer[1].pgd; -- } -+ clone_pgd_range(swapper_pg_dir, efi_bak_pg_dir_pointer, KERNEL_PGD_PTRS); - - /* - * After the lock is released, the original page table is restored. -diff -urNp linux-2.6.28.8/arch/x86/kernel/efi_stub_32.S linux-2.6.28.8/arch/x86/kernel/efi_stub_32.S ---- linux-2.6.28.8/arch/x86/kernel/efi_stub_32.S 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/x86/kernel/efi_stub_32.S 2009-02-21 09:37:48.000000000 -0500 -@@ -6,6 +6,7 @@ - */ - - #include <linux/linkage.h> -+#include <linux/init.h> - #include <asm/page.h> - - /* -@@ -20,7 +21,7 @@ - * service functions will comply with gcc calling convention, too. - */ - --.text -+__INIT - ENTRY(efi_call_phys) - /* - * 0. The function can only be called in Linux kernel. So CS has been -@@ -36,9 +37,7 @@ ENTRY(efi_call_phys) - * The mapping of lower virtual memory has been created in prelog and - * epilog. - */ -- movl $1f, %edx -- subl $__PAGE_OFFSET, %edx -- jmp *%edx -+ jmp 1f-__PAGE_OFFSET - 1: - - /* -@@ -47,14 +46,8 @@ ENTRY(efi_call_phys) - * parameter 2, ..., param n. To make things easy, we save the return - * address of efi_call_phys in a global variable. - */ -- popl %edx -- movl %edx, saved_return_addr -- /* get the function pointer into ECX*/ -- popl %ecx -- movl %ecx, efi_rt_function_ptr -- movl $2f, %edx -- subl $__PAGE_OFFSET, %edx -- pushl %edx -+ popl (saved_return_addr) -+ popl (efi_rt_function_ptr) - - /* - * 3. Clear PG bit in %CR0. -@@ -73,9 +66,8 @@ ENTRY(efi_call_phys) - /* - * 5. Call the physical function. - */ -- jmp *%ecx -+ call *(efi_rt_function_ptr-__PAGE_OFFSET) - --2: - /* - * 6. After EFI runtime service returns, control will return to - * following instruction. We'd better readjust stack pointer first. -@@ -88,34 +80,27 @@ ENTRY(efi_call_phys) - movl %cr0, %edx - orl $0x80000000, %edx - movl %edx, %cr0 -- jmp 1f --1: -+ - /* - * 8. Now restore the virtual mode from flat mode by - * adding EIP with PAGE_OFFSET. - */ -- movl $1f, %edx -- jmp *%edx -+ jmp 1f+__PAGE_OFFSET - 1: - - /* - * 9. Balance the stack. And because EAX contain the return value, - * we'd better not clobber it. - */ -- leal efi_rt_function_ptr, %edx -- movl (%edx), %ecx -- pushl %ecx -+ pushl (efi_rt_function_ptr) - - /* -- * 10. Push the saved return address onto the stack and return. -+ * 10. Return to the saved return address. - */ -- leal saved_return_addr, %edx -- movl (%edx), %ecx -- pushl %ecx -- ret -+ jmpl *(saved_return_addr) - .previous - --.data -+__INITDATA - saved_return_addr: - .long 0 - efi_rt_function_ptr: -diff -urNp linux-2.6.28.8/arch/x86/kernel/entry_32.S linux-2.6.28.8/arch/x86/kernel/entry_32.S ---- linux-2.6.28.8/arch/x86/kernel/entry_32.S 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/x86/kernel/entry_32.S 2009-02-21 09:37:48.000000000 -0500 -@@ -101,7 +101,7 @@ - #define resume_userspace_sig resume_userspace - #endif - --#define SAVE_ALL \ -+#define __SAVE_ALL(_DS) \ - cld; \ - pushl %fs; \ - CFI_ADJUST_CFA_OFFSET 4;\ -@@ -133,12 +133,26 @@ - pushl %ebx; \ - CFI_ADJUST_CFA_OFFSET 4;\ - CFI_REL_OFFSET ebx, 0;\ -- movl $(__USER_DS), %edx; \ -+ movl $(_DS), %edx; \ - movl %edx, %ds; \ - movl %edx, %es; \ - movl $(__KERNEL_PERCPU), %edx; \ - movl %edx, %fs - -+#ifdef CONFIG_PAX_KERNEXEC -+#define SAVE_ALL \ -+ __SAVE_ALL(__KERNEL_DS); \ -+ GET_CR0_INTO_EDX; \ -+ movl %edx, %esi; \ -+ orl $X86_CR0_WP, %edx; \ -+ xorl %edx, %esi; \ -+ SET_CR0_FROM_EDX -+#elif defined(CONFIG_PAX_PAGEEXEC) || defined(CONFIG_PAX_SEGMEXEC) || defined(CONFIG_PAX_MEMORY_UDEREF) -+#define SAVE_ALL __SAVE_ALL(__KERNEL_DS) -+#else -+#define SAVE_ALL __SAVE_ALL(__USER_DS) -+#endif -+ - #define RESTORE_INT_REGS \ - popl %ebx; \ - CFI_ADJUST_CFA_OFFSET -4;\ -@@ -229,6 +243,11 @@ ENTRY(ret_from_fork) - CFI_ADJUST_CFA_OFFSET 4 - popfl - CFI_ADJUST_CFA_OFFSET -4 -+ -+#ifdef CONFIG_PAX_KERNEXEC -+ xorl %esi, %esi -+#endif -+ - jmp syscall_exit - CFI_ENDPROC - END(ret_from_fork) -@@ -252,7 +271,17 @@ check_userspace: - movb PT_CS(%esp), %al - andl $(X86_EFLAGS_VM | SEGMENT_RPL_MASK), %eax - cmpl $USER_RPL, %eax -+ -+#ifdef CONFIG_PAX_KERNEXEC -+ jae resume_userspace -+ -+ GET_CR0_INTO_EDX -+ xorl %esi, %edx -+ SET_CR0_FROM_EDX -+ jmp resume_kernel -+#else - jb resume_kernel # not returning to v8086 or userspace -+#endif - - ENTRY(resume_userspace) - LOCKDEP_SYS_EXIT -@@ -314,10 +343,9 @@ sysenter_past_esp: - /*CFI_REL_OFFSET cs, 0*/ - /* - * Push current_thread_info()->sysenter_return to the stack. -- * A tiny bit of offset fixup is necessary - 4*4 means the 4 words -- * pushed above; +8 corresponds to copy_thread's esp0 setting. - */ -- pushl (TI_sysenter_return-THREAD_SIZE+8+4*4)(%esp) -+ GET_THREAD_INFO(%ebp) -+ pushl TI_sysenter_return(%ebp) - CFI_ADJUST_CFA_OFFSET 4 - CFI_REL_OFFSET eip, 0 - -@@ -330,9 +358,19 @@ sysenter_past_esp: - * Load the potential sixth argument from user stack. - * Careful about security. - */ -+ movl PT_OLDESP(%esp),%ebp -+ -+#ifdef CONFIG_PAX_MEMORY_UDEREF -+ mov PT_OLDSS(%esp),%ds -+1: movl %ds:(%ebp),%ebp -+ push %ss -+ pop %ds -+#else - cmpl $__PAGE_OFFSET-3,%ebp - jae syscall_fault - 1: movl (%ebp),%ebp -+#endif -+ - movl %ebp,PT_EBP(%esp) - .section __ex_table,"a" - .align 4 -@@ -356,12 +394,23 @@ sysenter_do_call: - testw $_TIF_ALLWORK_MASK, %cx - jne sysexit_audit - sysenter_exit: -+ -+#ifdef CONFIG_PAX_RANDKSTACK -+ pushl %eax -+ CFI_ADJUST_CFA_OFFSET 4 -+ call pax_randomize_kstack -+ popl %eax -+ CFI_ADJUST_CFA_OFFSET -4 -+#endif -+ - /* if something modifies registers it must also disable sysexit */ - movl PT_EIP(%esp), %edx - movl PT_OLDESP(%esp), %ecx - xorl %ebp,%ebp - TRACE_IRQS_ON - 1: mov PT_FS(%esp), %fs -+2: mov PT_DS(%esp), %ds -+3: mov PT_ES(%esp), %es - ENABLE_INTERRUPTS_SYSEXIT - - #ifdef CONFIG_AUDITSYSCALL -@@ -404,11 +453,17 @@ sysexit_audit: - - CFI_ENDPROC - .pushsection .fixup,"ax" --2: movl $0,PT_FS(%esp) -+4: movl $0,PT_FS(%esp) -+ jmp 1b -+5: movl $0,PT_DS(%esp) -+ jmp 1b -+6: movl $0,PT_ES(%esp) - jmp 1b - .section __ex_table,"a" - .align 4 -- .long 1b,2b -+ .long 1b,4b -+ .long 2b,5b -+ .long 3b,6b - .popsection - ENDPROC(ia32_sysenter_target) - -@@ -438,6 +493,10 @@ syscall_exit: - testw $_TIF_ALLWORK_MASK, %cx # current->work - jne syscall_exit_work - -+#ifdef CONFIG_PAX_RANDKSTACK -+ call pax_randomize_kstack -+#endif -+ - restore_all: - movl PT_EFLAGS(%esp), %eax # mix EFLAGS, SS and CS - # Warning: PT_OLDSS(%esp) contains the wrong/random values if we -@@ -531,25 +590,19 @@ work_resched: - - work_notifysig: # deal with pending signals and - # notify-resume requests -+ movl %esp, %eax - #ifdef CONFIG_VM86 - testl $X86_EFLAGS_VM, PT_EFLAGS(%esp) -- movl %esp, %eax -- jne work_notifysig_v86 # returning to kernel-space or -+ jz 1f # returning to kernel-space or - # vm86-space -- xorl %edx, %edx -- call do_notify_resume -- jmp resume_userspace_sig - -- ALIGN --work_notifysig_v86: - pushl %ecx # save ti_flags for do_notify_resume - CFI_ADJUST_CFA_OFFSET 4 - call save_v86_state # %eax contains pt_regs pointer - popl %ecx - CFI_ADJUST_CFA_OFFSET -4 - movl %eax, %esp --#else -- movl %esp, %eax -+1: - #endif - xorl %edx, %edx - call do_notify_resume -@@ -584,6 +637,10 @@ END(syscall_exit_work) - - RING0_INT_FRAME # can't unwind into user space anyway - syscall_fault: -+#ifdef CONFIG_PAX_MEMORY_UDEREF -+ push %ss -+ pop %ds -+#endif - GET_THREAD_INFO(%ebp) - movl $-EFAULT,PT_EAX(%esp) - jmp resume_userspace -@@ -595,17 +652,24 @@ syscall_badsys: - END(syscall_badsys) - CFI_ENDPROC - --#define FIXUP_ESPFIX_STACK \ -- /* since we are on a wrong stack, we cant make it a C code :( */ \ -- PER_CPU(gdt_page, %ebx); \ -- GET_DESC_BASE(GDT_ENTRY_ESPFIX_SS, %ebx, %eax, %ax, %al, %ah); \ -- addl %esp, %eax; \ -- pushl $__KERNEL_DS; \ -- CFI_ADJUST_CFA_OFFSET 4; \ -- pushl %eax; \ -- CFI_ADJUST_CFA_OFFSET 4; \ -- lss (%esp), %esp; \ -+.macro FIXUP_ESPFIX_STACK -+ /* since we are on a wrong stack, we cant make it a C code :( */ -+#ifdef CONFIG_SMP -+ movl PER_CPU_VAR(cpu_number), %ebx; -+ shll $PAGE_SHIFT_asm, %ebx; -+ addl $cpu_gdt_table, %ebx; -+#else -+ movl $cpu_gdt_table, %ebx; -+#endif -+ GET_DESC_BASE(GDT_ENTRY_ESPFIX_SS, %ebx, %eax, %ax, %al, %ah); -+ addl %esp, %eax; -+ pushl $__KERNEL_DS; -+ CFI_ADJUST_CFA_OFFSET 4; -+ pushl %eax; -+ CFI_ADJUST_CFA_OFFSET 4; -+ lss (%esp), %esp; - CFI_ADJUST_CFA_OFFSET -8; -+.endm - #define UNWIND_ESPFIX_STACK \ - movl %ss, %eax; \ - /* see if on espfix stack */ \ -@@ -622,7 +686,7 @@ END(syscall_badsys) - * Build the entry stubs and pointer table with - * some assembler magic. - */ --.section .rodata,"a" -+.section .rodata,"a",@progbits - ENTRY(interrupt) - .text - -@@ -722,12 +786,21 @@ error_code: - popl %ecx - CFI_ADJUST_CFA_OFFSET -4 - /*CFI_REGISTER es, ecx*/ -+ -+#ifdef CONFIG_PAX_KERNEXEC -+ GET_CR0_INTO_EDX -+ movl %edx, %esi -+ orl $X86_CR0_WP, %edx -+ xorl %edx, %esi -+ SET_CR0_FROM_EDX -+#endif -+ - movl PT_FS(%esp), %edi # get the function address - movl PT_ORIG_EAX(%esp), %edx # get the error code - movl $-1, PT_ORIG_EAX(%esp) # no syscall to restart - mov %ecx, PT_FS(%esp) - /*CFI_REL_OFFSET fs, ES*/ -- movl $(__USER_DS), %ecx -+ movl $(__KERNEL_DS), %ecx - movl %ecx, %ds - movl %ecx, %es - TRACE_IRQS_OFF -@@ -853,6 +926,13 @@ nmi_stack_correct: - xorl %edx,%edx # zero error code - movl %esp,%eax # pt_regs pointer - call do_nmi -+ -+#ifdef CONFIG_PAX_KERNEXEC -+ GET_CR0_INTO_EDX -+ xorl %esi, %edx -+ SET_CR0_FROM_EDX -+#endif -+ - jmp restore_nocheck_notrace - CFI_ENDPROC - -@@ -894,6 +974,13 @@ nmi_espfix_stack: - FIXUP_ESPFIX_STACK # %eax == %esp - xorl %edx,%edx # zero error code - call do_nmi -+ -+#ifdef CONFIG_PAX_KERNEXEC -+ GET_CR0_INTO_EDX -+ xorl %esi, %edx -+ SET_CR0_FROM_EDX -+#endif -+ - RESTORE_REGS - lss 12+4(%esp), %esp # back to espfix stack - CFI_ADJUST_CFA_OFFSET -24 -@@ -1206,7 +1293,6 @@ END(mcount) - #endif /* CONFIG_DYNAMIC_FTRACE */ - #endif /* CONFIG_FUNCTION_TRACER */ - --.section .rodata,"a" - #include "syscall_table_32.S" - - syscall_table_size=(.-sys_call_table) -diff -urNp linux-2.6.28.8/arch/x86/kernel/entry_64.S linux-2.6.28.8/arch/x86/kernel/entry_64.S ---- linux-2.6.28.8/arch/x86/kernel/entry_64.S 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/x86/kernel/entry_64.S 2009-02-21 09:37:48.000000000 -0500 -@@ -911,7 +911,8 @@ END(spurious_interrupt) - xorl %ebx,%ebx - 1: - .if \ist -- movq %gs:pda_data_offset, %rbp -+ imul $TSS_size, %gs:pda_cpunumber, %ebp -+ lea init_tss(%rbp), %rbp - .endif - .if \irqtrace - TRACE_IRQS_OFF -@@ -920,11 +921,11 @@ END(spurious_interrupt) - movq ORIG_RAX(%rsp),%rsi - movq $-1,ORIG_RAX(%rsp) - .if \ist -- subq $EXCEPTION_STKSZ, per_cpu__init_tss + TSS_ist + (\ist - 1) * 8(%rbp) -+ subq $EXCEPTION_STKSZ, TSS_ist + (\ist - 1) * 8(%rbp) - .endif - call \sym - .if \ist -- addq $EXCEPTION_STKSZ, per_cpu__init_tss + TSS_ist + (\ist - 1) * 8(%rbp) -+ addq $EXCEPTION_STKSZ, TSS_ist + (\ist - 1) * 8(%rbp) - .endif - DISABLE_INTERRUPTS(CLBR_NONE) - .if \irqtrace -diff -urNp linux-2.6.28.8/arch/x86/kernel/ftrace.c linux-2.6.28.8/arch/x86/kernel/ftrace.c ---- linux-2.6.28.8/arch/x86/kernel/ftrace.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/x86/kernel/ftrace.c 2009-02-21 09:37:48.000000000 -0500 -@@ -95,9 +95,9 @@ int ftrace_update_ftrace_func(ftrace_fun - unsigned char old[MCOUNT_INSN_SIZE], *new; - int ret; - -- memcpy(old, &ftrace_call, MCOUNT_INSN_SIZE); -+ memcpy(old, (void *)ktla_ktva((unsigned long)ftrace_call), MCOUNT_INSN_SIZE); - new = ftrace_call_replace(ip, (unsigned long)func); -- ret = ftrace_modify_code(ip, old, new); -+ ret = ftrace_modify_code(ktla_ktva(ip), old, new); - - return ret; - } -diff -urNp linux-2.6.28.8/arch/x86/kernel/head32.c linux-2.6.28.8/arch/x86/kernel/head32.c ---- linux-2.6.28.8/arch/x86/kernel/head32.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/x86/kernel/head32.c 2009-02-21 09:37:48.000000000 -0500 -@@ -12,10 +12,11 @@ - #include <asm/sections.h> - #include <asm/e820.h> - #include <asm/bios_ebda.h> -+#include <asm/boot.h> - - void __init i386_start_kernel(void) - { -- reserve_early(__pa_symbol(&_text), __pa_symbol(&_end), "TEXT DATA BSS"); -+ reserve_early(LOAD_PHYSICAL_ADDR, __pa_symbol(&_end), "TEXT DATA BSS"); - - #ifdef CONFIG_BLK_DEV_INITRD - /* Reserve INITRD */ -diff -urNp linux-2.6.28.8/arch/x86/kernel/head_32.S linux-2.6.28.8/arch/x86/kernel/head_32.S ---- linux-2.6.28.8/arch/x86/kernel/head_32.S 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/x86/kernel/head_32.S 2009-02-21 09:37:48.000000000 -0500 -@@ -19,6 +19,7 @@ - #include <asm/asm-offsets.h> - #include <asm/setup.h> - #include <asm/processor-flags.h> -+#include <asm/msr-index.h> - - /* Physical address */ - #define pa(X) ((X) - __PAGE_OFFSET) -@@ -64,17 +65,22 @@ LOW_PAGES = 1<<(32-PAGE_SHIFT_asm) - LOW_PAGES = LOW_PAGES + 0x1000000 - #endif - --#if PTRS_PER_PMD > 1 --PAGE_TABLE_SIZE = (LOW_PAGES / PTRS_PER_PMD) + PTRS_PER_PGD --#else --PAGE_TABLE_SIZE = (LOW_PAGES / PTRS_PER_PGD) --#endif -+PAGE_TABLE_SIZE = (LOW_PAGES / PTRS_PER_PTE) - BOOTBITMAP_SIZE = LOW_PAGES / 8 - ALLOCATOR_SLOP = 4 - - INIT_MAP_BEYOND_END = BOOTBITMAP_SIZE + (PAGE_TABLE_SIZE + ALLOCATOR_SLOP)*PAGE_SIZE_asm - - /* -+ * Real beginning of normal "text" segment -+ */ -+ENTRY(stext) -+ENTRY(_stext) -+ -+.section .text.startup,"ax",@progbits -+ ljmp $(__BOOT_CS),$phys_startup_32 -+ -+/* - * 32-bit kernel entrypoint; only used by the boot CPU. On entry, - * %esi points to the real-mode code as a 32-bit pointer. - * CS and DS must be 4 GB flat segments, but we don't depend on -@@ -82,6 +88,12 @@ INIT_MAP_BEYOND_END = BOOTBITMAP_SIZE + - * can. - */ - .section .text.head,"ax",@progbits -+ -+#ifdef CONFIG_PAX_KERNEXEC -+/* PaX: fill first page in .text with int3 to catch NULL derefs in kernel mode */ -+.fill 4096,1,0xcc -+#endif -+ - ENTRY(startup_32) - /* test KEEP_SEGMENTS flag to see if the bootloader is asking - us to not reload segments */ -@@ -99,6 +111,56 @@ ENTRY(startup_32) - movl %eax,%gs - 2: - -+ movl $pa(cpu_gdt_table),%edi -+ movl $__per_cpu_start,%eax -+ movw %ax,__KERNEL_PERCPU + 2(%edi) -+ rorl $16,%eax -+ movb %al,__KERNEL_PERCPU + 4(%edi) -+ movb %ah,__KERNEL_PERCPU + 7(%edi) -+ movl $__per_cpu_end + PERCPU_MODULE_RESERVE - 1,%eax -+ subl $__per_cpu_start,%eax -+ movw %ax,__KERNEL_PERCPU + 0(%edi) -+ -+#ifdef CONFIG_PAX_MEMORY_UDEREF -+ /* check for VMware */ -+ movl $0x564d5868,%eax -+ xorl %ebx,%ebx -+ movl $0xa,%ecx -+ movl $0x5658,%edx -+ in (%dx),%eax -+ cmpl $0x564d5868,%ebx -+ jz 2f -+ -+ movl $NR_CPUS,%ecx -+ movl $pa(cpu_gdt_table),%edi -+1: -+ movl $((((__PAGE_OFFSET-1) & 0xf0000000) >> 12) | 0x00c09700),GDT_ENTRY_KERNEL_DS * 8 + 4(%edi) -+ addl $PAGE_SIZE_asm,%edi -+ loop 1b -+2: -+#endif -+ -+#ifdef CONFIG_PAX_KERNEXEC -+ movl $pa(boot_gdt),%edi -+ movl $KERNEL_TEXT_OFFSET,%eax -+ movw %ax,__BOOT_CS + 2(%edi) -+ rorl $16,%eax -+ movb %al,__BOOT_CS + 4(%edi) -+ movb %ah,__BOOT_CS + 7(%edi) -+ rorl $16,%eax -+ -+ movl $NR_CPUS,%ecx -+ movl $pa(cpu_gdt_table),%edi -+1: -+ movw %ax,__KERNEL_CS + 2(%edi) -+ rorl $16,%eax -+ movb %al,__KERNEL_CS + 4(%edi) -+ movb %ah,__KERNEL_CS + 7(%edi) -+ rorl $16,%eax -+ addl $PAGE_SIZE_asm,%edi -+ loop 1b -+#endif -+ - /* - * Clear BSS first so that there are no surprises... - */ -@@ -142,9 +204,7 @@ ENTRY(startup_32) - cmpl $num_subarch_entries, %eax - jae bad_subarch - -- movl pa(subarch_entries)(,%eax,4), %eax -- subl $__PAGE_OFFSET, %eax -- jmp *%eax -+ jmp *pa(subarch_entries)(,%eax,4) - - bad_subarch: - WEAK(lguest_entry) -@@ -156,9 +216,9 @@ WEAK(xen_entry) - __INITDATA - - subarch_entries: -- .long default_entry /* normal x86/PC */ -- .long lguest_entry /* lguest hypervisor */ -- .long xen_entry /* Xen hypervisor */ -+ .long pa(default_entry) /* normal x86/PC */ -+ .long pa(lguest_entry) /* lguest hypervisor */ -+ .long pa(xen_entry) /* Xen hypervisor */ - num_subarch_entries = (. - subarch_entries) / 4 - .previous - #endif /* CONFIG_PARAVIRT */ -@@ -220,8 +280,7 @@ default_entry: - movl %eax, pa(max_pfn_mapped) - - /* Do early initialization of the fixmap area */ -- movl $pa(swapper_pg_fixmap)+PDE_IDENT_ATTR,%eax -- movl %eax,pa(swapper_pg_pmd+0x1000*KPMDS-8) -+ movl $pa(swapper_pg_fixmap)+PDE_IDENT_ATTR,pa(swapper_pg_pmd+0x1000*KPMDS-8) - #else /* Not PAE */ - - page_pde_offset = (__PAGE_OFFSET >> 20); -@@ -253,8 +312,7 @@ page_pde_offset = (__PAGE_OFFSET >> 20); - movl %eax, pa(max_pfn_mapped) - - /* Do early initialization of the fixmap area */ -- movl $pa(swapper_pg_fixmap)+PDE_IDENT_ATTR,%eax -- movl %eax,pa(swapper_pg_dir+0xffc) -+ movl $pa(swapper_pg_fixmap)+PDE_IDENT_ATTR,pa(swapper_pg_dir+0xffc) - #endif - jmp 3f - /* -@@ -318,13 +376,16 @@ ENTRY(startup_32_smp) - jnc 6f - - /* Setup EFER (Extended Feature Enable Register) */ -- movl $0xc0000080, %ecx -+ movl $MSR_EFER, %ecx - rdmsr - - btsl $11, %eax - /* Make changes effective */ - wrmsr - -+ btsl $_PAGE_BIT_NX-32,pa(__supported_pte_mask+4) -+ movl $1,pa(nx_enabled) -+ - 6: - - /* -@@ -350,9 +411,7 @@ ENTRY(startup_32_smp) - - #ifdef CONFIG_SMP - cmpb $0, ready -- jz 1f /* Initial CPU cleans BSS */ -- jmp checkCPUtype --1: -+ jnz checkCPUtype /* Initial CPU cleans BSS */ - #endif /* CONFIG_SMP */ - - /* -@@ -429,12 +488,12 @@ is386: movl $2,%ecx # set MP - ljmp $(__KERNEL_CS),$1f - 1: movl $(__KERNEL_DS),%eax # reload all the segment registers - movl %eax,%ss # after changing gdt. -- movl %eax,%fs # gets reset once there's real percpu -- -- movl $(__USER_DS),%eax # DS/ES contains default USER segment - movl %eax,%ds - movl %eax,%es - -+ movl $(__KERNEL_PERCPU), %eax -+ movl %eax,%fs # set this cpu's percpu -+ - xorl %eax,%eax # Clear GS and LDT - movl %eax,%gs - lldt %ax -@@ -444,12 +503,6 @@ is386: movl $2,%ecx # set MP - #ifdef CONFIG_SMP - movb ready, %cl - movb $1, ready -- cmpb $0,%cl # the first CPU calls start_kernel -- je 1f -- movl $(__KERNEL_PERCPU), %eax -- movl %eax,%fs # set this cpu's percpu -- movl (stack_start), %esp --1: - #endif /* CONFIG_SMP */ - jmp *(initial_code) - -@@ -535,15 +588,15 @@ early_page_fault: - jmp early_fault - - early_fault: -- cld - #ifdef CONFIG_PRINTK -+ cmpl $2,%ss:early_recursion_flag -+ je hlt_loop -+ incl %ss:early_recursion_flag -+ cld - pusha - movl $(__KERNEL_DS),%eax - movl %eax,%ds - movl %eax,%es -- cmpl $2,early_recursion_flag -- je hlt_loop -- incl early_recursion_flag - movl %cr2,%eax - pushl %eax - pushl %edx /* trapno */ -@@ -553,8 +606,8 @@ early_fault: - #else - call printk - #endif --#endif - call dump_stack -+#endif - hlt_loop: - hlt - jmp hlt_loop -@@ -562,8 +615,11 @@ hlt_loop: - /* This is the default interrupt "handler" :-) */ - ALIGN - ignore_int: -- cld - #ifdef CONFIG_PRINTK -+ cmpl $2,%ss:early_recursion_flag -+ je hlt_loop -+ incl %ss:early_recursion_flag -+ cld - pushl %eax - pushl %ecx - pushl %edx -@@ -572,9 +628,6 @@ ignore_int: - movl $(__KERNEL_DS),%eax - movl %eax,%ds - movl %eax,%es -- cmpl $2,early_recursion_flag -- je hlt_loop -- incl early_recursion_flag - pushl 16(%esp) - pushl 24(%esp) - pushl 32(%esp) -@@ -599,36 +652,41 @@ ignore_int: - ENTRY(initial_code) - .long i386_start_kernel - --.section .text --/* -- * Real beginning of normal "text" segment -- */ --ENTRY(stext) --ENTRY(_stext) -- - /* - * BSS section - */ --.section ".bss.page_aligned","wa" -- .align PAGE_SIZE_asm - #ifdef CONFIG_X86_PAE -+.section .swapper_pg_pmd,"a",@progbits - swapper_pg_pmd: - .fill 1024*KPMDS,4,0 - #else -+.section .swapper_pg_dir,"a",@progbits - ENTRY(swapper_pg_dir) - .fill 1024,4,0 - #endif - swapper_pg_fixmap: - .fill 1024,4,0 -+ -+.section .empty_zero_page,"a",@progbits - ENTRY(empty_zero_page) - .fill 4096,1,0 -+ -+/* -+ * The IDT has to be page-aligned to simplify the Pentium -+ * F0 0F bug workaround.. We have a special link segment -+ * for this. -+ */ -+.section .idt,"a",@progbits -+ENTRY(idt_table) -+ .fill 256,8,0 -+ - /* - * This starts the data section. - */ -+.data -+ - #ifdef CONFIG_X86_PAE --.section ".data.page_aligned","wa" -- /* Page-aligned for the benefit of paravirt? */ -- .align PAGE_SIZE_asm -+.section .swapper_pg_dir,"a",@progbits - ENTRY(swapper_pg_dir) - .long pa(swapper_pg_pmd+PGD_IDENT_ATTR),0 /* low identity map */ - # if KPMDS == 3 -@@ -651,11 +709,12 @@ ENTRY(swapper_pg_dir) - - .data - ENTRY(stack_start) -- .long init_thread_union+THREAD_SIZE -+ .long init_thread_union+THREAD_SIZE-8 - .long __BOOT_DS - - ready: .byte 0 - -+.section .rodata,"a",@progbits - early_recursion_flag: - .long 0 - -@@ -691,7 +750,7 @@ fault_msg: - .word 0 # 32 bit align gdt_desc.address - boot_gdt_descr: - .word __BOOT_DS+7 -- .long boot_gdt - __PAGE_OFFSET -+ .long pa(boot_gdt) - - .word 0 # 32-bit align idt_desc.address - idt_descr: -@@ -702,7 +761,7 @@ idt_descr: - .word 0 # 32 bit align gdt_desc.address - ENTRY(early_gdt_descr) - .word GDT_ENTRIES*8-1 -- .long per_cpu__gdt_page /* Overwritten for secondary CPUs */ -+ .long cpu_gdt_table /* Overwritten for secondary CPUs */ - - /* - * The boot_gdt must mirror the equivalent in setup.S and is -@@ -711,5 +770,59 @@ ENTRY(early_gdt_descr) - .align L1_CACHE_BYTES - ENTRY(boot_gdt) - .fill GDT_ENTRY_BOOT_CS,8,0 -- .quad 0x00cf9a000000ffff /* kernel 4GB code at 0x00000000 */ -- .quad 0x00cf92000000ffff /* kernel 4GB data at 0x00000000 */ -+ .quad 0x00cf9b000000ffff /* kernel 4GB code at 0x00000000 */ -+ .quad 0x00cf93000000ffff /* kernel 4GB data at 0x00000000 */ -+ -+ .align PAGE_SIZE_asm -+ENTRY(cpu_gdt_table) -+ .rept NR_CPUS -+ .quad 0x0000000000000000 /* NULL descriptor */ -+ .quad 0x0000000000000000 /* 0x0b reserved */ -+ .quad 0x0000000000000000 /* 0x13 reserved */ -+ .quad 0x0000000000000000 /* 0x1b reserved */ -+ .quad 0x0000000000000000 /* 0x20 unused */ -+ .quad 0x0000000000000000 /* 0x28 unused */ -+ .quad 0x0000000000000000 /* 0x33 TLS entry 1 */ -+ .quad 0x0000000000000000 /* 0x3b TLS entry 2 */ -+ .quad 0x0000000000000000 /* 0x43 TLS entry 3 */ -+ .quad 0x0000000000000000 /* 0x4b reserved */ -+ .quad 0x0000000000000000 /* 0x53 reserved */ -+ .quad 0x0000000000000000 /* 0x5b reserved */ -+ -+ .quad 0x00cf9b000000ffff /* 0x60 kernel 4GB code at 0x00000000 */ -+ .quad 0x00cf93000000ffff /* 0x68 kernel 4GB data at 0x00000000 */ -+ .quad 0x00cffb000000ffff /* 0x73 user 4GB code at 0x00000000 */ -+ .quad 0x00cff3000000ffff /* 0x7b user 4GB data at 0x00000000 */ -+ -+ .quad 0x0000000000000000 /* 0x80 TSS descriptor */ -+ .quad 0x0000000000000000 /* 0x88 LDT descriptor */ -+ -+ /* -+ * Segments used for calling PnP BIOS have byte granularity. -+ * The code segments and data segments have fixed 64k limits, -+ * the transfer segment sizes are set at run time. -+ */ -+ .quad 0x00409b000000ffff /* 0x90 32-bit code */ -+ .quad 0x00009b000000ffff /* 0x98 16-bit code */ -+ .quad 0x000093000000ffff /* 0xa0 16-bit data */ -+ .quad 0x0000930000000000 /* 0xa8 16-bit data */ -+ .quad 0x0000930000000000 /* 0xb0 16-bit data */ -+ -+ /* -+ * The APM segments have byte granularity and their bases -+ * are set at run time. All have 64k limits. -+ */ -+ .quad 0x00409b000000ffff /* 0xb8 APM CS code */ -+ .quad 0x00009b000000ffff /* 0xc0 APM CS 16 code (16 bit) */ -+ .quad 0x004093000000ffff /* 0xc8 APM DS data */ -+ -+ .quad 0x00c0930000000000 /* 0xd0 - ESPFIX SS */ -+ .quad 0x0040930000000000 /* 0xd8 - PERCPU */ -+ .quad 0x0000000000000000 /* 0xe0 - PCIBIOS_CS */ -+ .quad 0x0000000000000000 /* 0xe8 - PCIBIOS_DS */ -+ .quad 0x0000000000000000 /* 0xf0 - unused */ -+ .quad 0x0000000000000000 /* 0xf8 - GDT entry 31: double-fault TSS */ -+ -+ /* Be sure this is zeroed to avoid false validations in Xen */ -+ .fill PAGE_SIZE_asm - GDT_SIZE,1,0 -+ .endr -diff -urNp linux-2.6.28.8/arch/x86/kernel/head64.c linux-2.6.28.8/arch/x86/kernel/head64.c ---- linux-2.6.28.8/arch/x86/kernel/head64.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/x86/kernel/head64.c 2009-02-21 09:37:48.000000000 -0500 -@@ -93,6 +93,8 @@ void __init x86_64_start_kernel(char * r - /* clear bss before set_intr_gate with early_idt_handler */ - clear_bss(); - -+ x86_64_init_pda(); -+ - /* Make NULL pointers segfault */ - zap_identity_mappings(); - -@@ -111,8 +113,6 @@ void __init x86_64_start_kernel(char * r - if (console_loglevel == 10) - early_printk("Kernel alive\n"); - -- x86_64_init_pda(); -- - x86_64_start_reservations(real_mode_data); - } - -diff -urNp linux-2.6.28.8/arch/x86/kernel/head_64.S linux-2.6.28.8/arch/x86/kernel/head_64.S ---- linux-2.6.28.8/arch/x86/kernel/head_64.S 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/x86/kernel/head_64.S 2009-02-21 09:37:48.000000000 -0500 -@@ -38,6 +38,10 @@ L4_PAGE_OFFSET = pgd_index(__PAGE_OFFSET - L3_PAGE_OFFSET = pud_index(__PAGE_OFFSET) - L4_START_KERNEL = pgd_index(__START_KERNEL_map) - L3_START_KERNEL = pud_index(__START_KERNEL_map) -+L4_VMALLOC_START = pgd_index(VMALLOC_START) -+L3_VMALLOC_START = pud_index(VMALLOC_START) -+L4_VMEMMAP_START = pgd_index(VMEMMAP_START) -+L3_VMEMMAP_START = pud_index(VMEMMAP_START) - - .text - .section .text.head -@@ -85,35 +89,22 @@ startup_64: - */ - addq %rbp, init_level4_pgt + 0(%rip) - addq %rbp, init_level4_pgt + (L4_PAGE_OFFSET*8)(%rip) -+ addq %rbp, init_level4_pgt + (L4_VMALLOC_START*8)(%rip) -+ addq %rbp, init_level4_pgt + (L4_VMEMMAP_START*8)(%rip) - addq %rbp, init_level4_pgt + (L4_START_KERNEL*8)(%rip) - - addq %rbp, level3_ident_pgt + 0(%rip) -+ addq %rbp, level3_ident_pgt + 8(%rip) -+ addq %rbp, level3_ident_pgt + 16(%rip) -+ addq %rbp, level3_ident_pgt + 24(%rip) - -- addq %rbp, level3_kernel_pgt + (510*8)(%rip) -- addq %rbp, level3_kernel_pgt + (511*8)(%rip) -+ addq %rbp, level3_vmemmap_pgt + (L3_VMEMMAP_START*8)(%rip) - -- addq %rbp, level2_fixmap_pgt + (506*8)(%rip) -+ addq %rbp, level3_kernel_pgt + (L3_START_KERNEL*8)(%rip) -+ addq %rbp, level3_kernel_pgt + (L3_START_KERNEL*8+8)(%rip) - -- /* Add an Identity mapping if I am above 1G */ -- leaq _text(%rip), %rdi -- andq $PMD_PAGE_MASK, %rdi -- -- movq %rdi, %rax -- shrq $PUD_SHIFT, %rax -- andq $(PTRS_PER_PUD - 1), %rax -- jz ident_complete -- -- leaq (level2_spare_pgt - __START_KERNEL_map + _KERNPG_TABLE)(%rbp), %rdx -- leaq level3_ident_pgt(%rip), %rbx -- movq %rdx, 0(%rbx, %rax, 8) -- -- movq %rdi, %rax -- shrq $PMD_SHIFT, %rax -- andq $(PTRS_PER_PMD - 1), %rax -- leaq __PAGE_KERNEL_IDENT_LARGE_EXEC(%rdi), %rdx -- leaq level2_spare_pgt(%rip), %rbx -- movq %rdx, 0(%rbx, %rax, 8) --ident_complete: -+ addq %rbp, level2_fixmap_pgt + (506*8)(%rip) -+ addq %rbp, level2_fixmap_pgt + (507*8)(%rip) - - /* - * Fixup the kernel text+data virtual addresses. Note that -@@ -187,6 +178,10 @@ ENTRY(secondary_startup_64) - btl $20,%edi /* No Execute supported? */ - jnc 1f - btsl $_EFER_NX, %eax -+ leaq init_level4_pgt(%rip), %rdi -+ btsq $_PAGE_BIT_NX, 8*L4_PAGE_OFFSET(%rdi) -+ btsq $_PAGE_BIT_NX, 8*L4_VMALLOC_START(%rdi) -+ btsq $_PAGE_BIT_NX, 8*L4_VMEMMAP_START(%rdi) - 1: wrmsr /* Make changes effective */ - - /* Setup cr0 */ -@@ -257,16 +252,16 @@ ENTRY(secondary_startup_64) - .align 8 - ENTRY(initial_code) - .quad x86_64_start_kernel -- __FINITDATA - - ENTRY(stack_start) - .quad init_thread_union+THREAD_SIZE-8 - .word 0 -+ __FINITDATA - - bad_address: - jmp bad_address - -- .section ".init.text","ax" -+ __INIT - #ifdef CONFIG_EARLY_PRINTK - .globl early_idt_handlers - early_idt_handlers: -@@ -311,18 +306,23 @@ ENTRY(early_idt_handler) - #endif /* EARLY_PRINTK */ - 1: hlt - jmp 1b -+ .previous - - #ifdef CONFIG_EARLY_PRINTK -+ __INITDATA - early_recursion_flag: - .long 0 -+ .previous - -+ .section .rodata,"a",@progbits - early_idt_msg: - .asciz "PANIC: early exception %02lx rip %lx:%lx error %lx cr2 %lx\n" - early_idt_ripmsg: - .asciz "RIP %s\n" --#endif /* CONFIG_EARLY_PRINTK */ - .previous -+#endif /* CONFIG_EARLY_PRINTK */ - -+ .section .rodata,"a",@progbits - .balign PAGE_SIZE - - #define NEXT_PAGE(name) \ -@@ -347,13 +347,27 @@ NEXT_PAGE(init_level4_pgt) - .quad level3_ident_pgt - __START_KERNEL_map + _KERNPG_TABLE - .org init_level4_pgt + L4_PAGE_OFFSET*8, 0 - .quad level3_ident_pgt - __START_KERNEL_map + _KERNPG_TABLE -+ .org init_level4_pgt + L4_VMALLOC_START*8, 0 -+ .quad level3_vmalloc_pgt - __START_KERNEL_map + _KERNPG_TABLE -+ .org init_level4_pgt + L4_VMEMMAP_START*8, 0 -+ .quad level3_vmemmap_pgt - __START_KERNEL_map + _KERNPG_TABLE - .org init_level4_pgt + L4_START_KERNEL*8, 0 - /* (2^48-(2*1024*1024*1024))/(2^39) = 511 */ - .quad level3_kernel_pgt - __START_KERNEL_map + _PAGE_TABLE - - NEXT_PAGE(level3_ident_pgt) - .quad level2_ident_pgt - __START_KERNEL_map + _KERNPG_TABLE -- .fill 511,8,0 -+ .quad level2_ident_pgt + PAGE_SIZE - __START_KERNEL_map + _KERNPG_TABLE -+ .quad level2_ident_pgt + 2*PAGE_SIZE - __START_KERNEL_map + _KERNPG_TABLE -+ .quad level2_ident_pgt + 3*PAGE_SIZE - __START_KERNEL_map + _KERNPG_TABLE -+ .fill 508,8,0 -+ -+NEXT_PAGE(level3_vmalloc_pgt) -+ .fill 512,8,0 -+ -+NEXT_PAGE(level3_vmemmap_pgt) -+ .fill L3_VMEMMAP_START,8,0 -+ .quad level2_vmemmap_pgt - __START_KERNEL_map + _KERNPG_TABLE - - NEXT_PAGE(level3_kernel_pgt) - .fill L3_START_KERNEL,8,0 -@@ -361,20 +375,27 @@ NEXT_PAGE(level3_kernel_pgt) - .quad level2_kernel_pgt - __START_KERNEL_map + _KERNPG_TABLE - .quad level2_fixmap_pgt - __START_KERNEL_map + _PAGE_TABLE - -+NEXT_PAGE(level2_vmemmap_pgt) -+ .fill 512,8,0 -+ - NEXT_PAGE(level2_fixmap_pgt) - .fill 506,8,0 - .quad level1_fixmap_pgt - __START_KERNEL_map + _PAGE_TABLE -- /* 8MB reserved for vsyscalls + a 2MB hole = 4 + 1 entries */ -- .fill 5,8,0 -+ .quad level1_vsyscall_pgt - __START_KERNEL_map + _PAGE_TABLE -+ /* 6MB reserved for vsyscalls + a 2MB hole = 3 + 1 entries */ -+ .fill 4,8,0 - - NEXT_PAGE(level1_fixmap_pgt) - .fill 512,8,0 - --NEXT_PAGE(level2_ident_pgt) -- /* Since I easily can, map the first 1G. -+NEXT_PAGE(level1_vsyscall_pgt) -+ .fill 512,8,0 -+ -+ /* Since I easily can, map the first 4G. - * Don't set NX because code runs from these pages. - */ -- PMDS(0, __PAGE_KERNEL_IDENT_LARGE_EXEC, PTRS_PER_PMD) -+NEXT_PAGE(level2_ident_pgt) -+ PMDS(0, __PAGE_KERNEL_IDENT_LARGE_EXEC, 4*PTRS_PER_PMD) - - NEXT_PAGE(level2_kernel_pgt) - /* -@@ -387,32 +408,48 @@ NEXT_PAGE(level2_kernel_pgt) - * If you want to increase this then increase MODULES_VADDR - * too.) - */ -- PMDS(0, __PAGE_KERNEL_LARGE_EXEC, -- KERNEL_IMAGE_SIZE/PMD_SIZE) -- --NEXT_PAGE(level2_spare_pgt) -- .fill 512, 8, 0 -+ PMDS(0, __PAGE_KERNEL_LARGE_EXEC, KERNEL_IMAGE_SIZE/PMD_SIZE) - - #undef PMDS - #undef NEXT_PAGE - -- .data -+ .align PAGE_SIZE -+ENTRY(cpu_gdt_table) -+ .rept NR_CPUS -+ .quad 0x0000000000000000 /* NULL descriptor */ -+ .quad 0x00cf9b000000ffff /* __KERNEL32_CS */ -+ .quad 0x00af9b000000ffff /* __KERNEL_CS */ -+ .quad 0x00cf93000000ffff /* __KERNEL_DS */ -+ .quad 0x00cffb000000ffff /* __USER32_CS */ -+ .quad 0x00cff3000000ffff /* __USER_DS, __USER32_DS */ -+ .quad 0x00affb000000ffff /* __USER_CS */ -+ .quad 0x0 /* unused */ -+ .quad 0,0 /* TSS */ -+ .quad 0,0 /* LDT */ -+ .quad 0,0,0 /* three TLS descriptors */ -+ .quad 0x0000f40000000000 /* node/CPU stored in limit */ -+ /* asm/segment.h:GDT_ENTRIES must match this */ -+ -+ /* zero the remaining page */ -+ .fill PAGE_SIZE / 8 - GDT_ENTRIES,8,0 -+ .endr -+ - .align 16 - .globl early_gdt_descr - early_gdt_descr: - .word GDT_ENTRIES*8-1 -- .quad per_cpu__gdt_page -+ .quad cpu_gdt_table - - ENTRY(phys_base) - /* This must match the first entry in level2_kernel_pgt */ - .quad 0x0000000000000000 - - #include "../../x86/xen/xen-head.S" -- -- .section .bss, "aw", @nobits -+ -+ .section .rodata,"a",@progbits - .align L1_CACHE_BYTES - ENTRY(idt_table) -- .skip 256 * 16 -+ .fill 512,8,0 - - .section .bss.page_aligned, "aw", @nobits - .align PAGE_SIZE -diff -urNp linux-2.6.28.8/arch/x86/kernel/i386_ksyms_32.c linux-2.6.28.8/arch/x86/kernel/i386_ksyms_32.c ---- linux-2.6.28.8/arch/x86/kernel/i386_ksyms_32.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/x86/kernel/i386_ksyms_32.c 2009-02-21 09:37:48.000000000 -0500 -@@ -10,8 +10,12 @@ - EXPORT_SYMBOL(mcount); - #endif - -+EXPORT_SYMBOL_GPL(cpu_gdt_table); -+ - /* Networking helper routines. */ - EXPORT_SYMBOL(csum_partial_copy_generic); -+EXPORT_SYMBOL(csum_partial_copy_generic_to_user); -+EXPORT_SYMBOL(csum_partial_copy_generic_from_user); - - EXPORT_SYMBOL(__get_user_1); - EXPORT_SYMBOL(__get_user_2); -@@ -26,3 +30,7 @@ EXPORT_SYMBOL(strstr); - - EXPORT_SYMBOL(csum_partial); - EXPORT_SYMBOL(empty_zero_page); -+ -+#ifdef CONFIG_PAX_KERNEXEC -+EXPORT_SYMBOL(KERNEL_TEXT_OFFSET); -+#endif -diff -urNp linux-2.6.28.8/arch/x86/kernel/init_task.c linux-2.6.28.8/arch/x86/kernel/init_task.c ---- linux-2.6.28.8/arch/x86/kernel/init_task.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/x86/kernel/init_task.c 2009-02-21 09:37:48.000000000 -0500 -@@ -42,5 +42,5 @@ EXPORT_SYMBOL(init_task); - * section. Since TSS's are completely CPU-local, we want them - * on exact cacheline boundaries, to eliminate cacheline ping-pong. - */ --DEFINE_PER_CPU_SHARED_ALIGNED(struct tss_struct, init_tss) = INIT_TSS; -- -+struct tss_struct init_tss[NR_CPUS] ____cacheline_internodealigned_in_smp = { [0 ... NR_CPUS-1] = INIT_TSS }; -+EXPORT_SYMBOL(init_tss); -diff -urNp linux-2.6.28.8/arch/x86/kernel/ioport.c linux-2.6.28.8/arch/x86/kernel/ioport.c ---- linux-2.6.28.8/arch/x86/kernel/ioport.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/x86/kernel/ioport.c 2009-02-21 09:37:48.000000000 -0500 -@@ -6,6 +6,7 @@ - #include <linux/sched.h> - #include <linux/kernel.h> - #include <linux/capability.h> -+#include <linux/security.h> - #include <linux/errno.h> - #include <linux/types.h> - #include <linux/ioport.h> -@@ -41,6 +42,12 @@ asmlinkage long sys_ioperm(unsigned long - - if ((from + num <= from) || (from + num > IO_BITMAP_BITS)) - return -EINVAL; -+#ifdef CONFIG_GRKERNSEC_IO -+ if (turn_on) { -+ gr_handle_ioperm(); -+ return -EPERM; -+ } -+#endif - if (turn_on && !capable(CAP_SYS_RAWIO)) - return -EPERM; - -@@ -67,7 +74,7 @@ asmlinkage long sys_ioperm(unsigned long - * because the ->io_bitmap_max value must match the bitmap - * contents: - */ -- tss = &per_cpu(init_tss, get_cpu()); -+ tss = init_tss + get_cpu(); - - set_bitmap(t->io_bitmap_ptr, from, num, !turn_on); - -@@ -122,8 +129,13 @@ static int do_iopl(unsigned int level, s - return -EINVAL; - /* Trying to gain more privileges? */ - if (level > old) { -+#ifdef CONFIG_GRKERNSEC_IO -+ gr_handle_iopl(); -+ return -EPERM; -+#else - if (!capable(CAP_SYS_RAWIO)) - return -EPERM; -+#endif - } - regs->flags = (regs->flags & ~X86_EFLAGS_IOPL) | (level << 12); - -diff -urNp linux-2.6.28.8/arch/x86/kernel/irq_32.c linux-2.6.28.8/arch/x86/kernel/irq_32.c ---- linux-2.6.28.8/arch/x86/kernel/irq_32.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/x86/kernel/irq_32.c 2009-02-21 09:37:48.000000000 -0500 -@@ -93,7 +93,7 @@ execute_on_irq_stack(int overflow, struc - return 0; - - /* build the stack frame on the IRQ stack */ -- isp = (u32 *) ((char*)irqctx + sizeof(*irqctx)); -+ isp = (u32 *) ((char*)irqctx + sizeof(*irqctx) - 8); - irqctx->tinfo.task = curctx->tinfo.task; - irqctx->tinfo.previous_esp = current_stack_pointer; - -@@ -174,7 +174,7 @@ asmlinkage void do_softirq(void) - irqctx->tinfo.previous_esp = current_stack_pointer; - - /* build the stack frame on the softirq stack */ -- isp = (u32*) ((char*)irqctx + sizeof(*irqctx)); -+ isp = (u32*) ((char*)irqctx + sizeof(*irqctx) - 8); - - call_on_stack(__do_softirq, isp); - /* -diff -urNp linux-2.6.28.8/arch/x86/kernel/kprobes.c linux-2.6.28.8/arch/x86/kernel/kprobes.c ---- linux-2.6.28.8/arch/x86/kernel/kprobes.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/x86/kernel/kprobes.c 2009-02-21 09:37:48.000000000 -0500 -@@ -166,9 +166,24 @@ static void __kprobes set_jmp_op(void *f - char op; - s32 raddr; - } __attribute__((packed)) * jop; -- jop = (struct __arch_jmp_op *)from; -+ -+#ifdef CONFIG_PAX_KERNEXEC -+ unsigned long cr0; -+#endif -+ -+ jop = (struct __arch_jmp_op *)(ktla_ktva(from)); -+ -+#ifdef CONFIG_PAX_KERNEXEC -+ pax_open_kernel(cr0); -+#endif -+ - jop->raddr = (s32)((long)(to) - ((long)(from) + 5)); - jop->op = RELATIVEJUMP_INSTRUCTION; -+ -+#ifdef CONFIG_PAX_KERNEXEC -+ pax_close_kernel(cr0); -+#endif -+ - } - - /* -@@ -342,16 +357,29 @@ static void __kprobes fix_riprel(struct - - static void __kprobes arch_copy_kprobe(struct kprobe *p) - { -- memcpy(p->ainsn.insn, p->addr, MAX_INSN_SIZE * sizeof(kprobe_opcode_t)); -+ -+#ifdef CONFIG_PAX_KERNEXEC -+ unsigned long cr0; -+#endif -+ -+#ifdef CONFIG_PAX_KERNEXEC -+ pax_open_kernel(cr0); -+#endif -+ -+ memcpy(p->ainsn.insn, ktla_ktva(p->addr), MAX_INSN_SIZE * sizeof(kprobe_opcode_t)); -+ -+#ifdef CONFIG_PAX_KERNEXEC -+ pax_close_kernel(cr0); -+#endif - - fix_riprel(p); - -- if (can_boost(p->addr)) -+ if (can_boost(ktla_ktva(p->addr))) - p->ainsn.boostable = 0; - else - p->ainsn.boostable = -1; - -- p->opcode = *p->addr; -+ p->opcode = *(ktla_ktva(p->addr)); - } - - int __kprobes arch_prepare_kprobe(struct kprobe *p) -@@ -428,7 +456,7 @@ static void __kprobes prepare_singlestep - if (p->opcode == BREAKPOINT_INSTRUCTION) - regs->ip = (unsigned long)p->addr; - else -- regs->ip = (unsigned long)p->ainsn.insn; -+ regs->ip = ktva_ktla((unsigned long)p->ainsn.insn); - } - - void __kprobes arch_prepare_kretprobe(struct kretprobe_instance *ri, -@@ -449,7 +477,7 @@ static void __kprobes setup_singlestep(s - if (p->ainsn.boostable == 1 && !p->post_handler) { - /* Boost up -- we can execute copied instructions directly */ - reset_current_kprobe(); -- regs->ip = (unsigned long)p->ainsn.insn; -+ regs->ip = ktva_ktla((unsigned long)p->ainsn.insn); - preempt_enable_no_resched(); - return; - } -@@ -519,7 +547,7 @@ static int __kprobes kprobe_handler(stru - struct kprobe_ctlblk *kcb; - - addr = (kprobe_opcode_t *)(regs->ip - sizeof(kprobe_opcode_t)); -- if (*addr != BREAKPOINT_INSTRUCTION) { -+ if (*(kprobe_opcode_t *)ktla_ktva((unsigned long)addr) != BREAKPOINT_INSTRUCTION) { - /* - * The breakpoint instruction was removed right - * after we hit it. Another cpu has removed -@@ -770,7 +798,7 @@ static void __kprobes resume_execution(s - struct pt_regs *regs, struct kprobe_ctlblk *kcb) - { - unsigned long *tos = stack_addr(regs); -- unsigned long copy_ip = (unsigned long)p->ainsn.insn; -+ unsigned long copy_ip = ktva_ktla((unsigned long)p->ainsn.insn); - unsigned long orig_ip = (unsigned long)p->addr; - kprobe_opcode_t *insn = p->ainsn.insn; - -@@ -953,7 +981,7 @@ int __kprobes kprobe_exceptions_notify(s - struct die_args *args = data; - int ret = NOTIFY_DONE; - -- if (args->regs && user_mode_vm(args->regs)) -+ if (args->regs && user_mode(args->regs)) - return ret; - - switch (val) { -diff -urNp linux-2.6.28.8/arch/x86/kernel/ldt.c linux-2.6.28.8/arch/x86/kernel/ldt.c ---- linux-2.6.28.8/arch/x86/kernel/ldt.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/x86/kernel/ldt.c 2009-02-21 09:37:48.000000000 -0500 -@@ -66,13 +66,13 @@ static int alloc_ldt(mm_context_t *pc, i - if (reload) { - #ifdef CONFIG_SMP - preempt_disable(); -- load_LDT(pc); -+ load_LDT_nolock(pc); - if (!cpus_equal(current->mm->cpu_vm_mask, - cpumask_of_cpu(smp_processor_id()))) - smp_call_function(flush_ldt, current->mm, 1); - preempt_enable(); - #else -- load_LDT(pc); -+ load_LDT_nolock(pc); - #endif - } - if (oldsize) { -@@ -94,7 +94,7 @@ static inline int copy_ldt(mm_context_t - return err; - - for(i = 0; i < old->size; i++) -- write_ldt_entry(new->ldt, i, old->ldt + i * LDT_ENTRY_SIZE); -+ write_ldt_entry(new->ldt, i, old->ldt + i); - return 0; - } - -@@ -115,6 +115,24 @@ int init_new_context(struct task_struct - retval = copy_ldt(&mm->context, &old_mm->context); - mutex_unlock(&old_mm->context.lock); - } -+ -+ if (tsk == current) { -+ mm->context.vdso = ~0UL; -+ -+#ifdef CONFIG_X86_32 -+#if defined(CONFIG_PAX_PAGEEXEC) || defined(CONFIG_PAX_SEGMEXEC) -+ mm->context.user_cs_base = 0UL; -+ mm->context.user_cs_limit = ~0UL; -+ -+#if defined(CONFIG_PAX_PAGEEXEC) && defined(CONFIG_SMP) -+ cpus_clear(mm->context.cpu_user_cs_mask); -+#endif -+ -+#endif -+#endif -+ -+ } -+ - return retval; - } - -@@ -229,6 +247,13 @@ static int write_ldt(void __user *ptr, u - } - } - -+#ifdef CONFIG_PAX_SEGMEXEC -+ if ((mm->pax_flags & MF_PAX_SEGMEXEC) && (ldt_info.contents & MODIFY_LDT_CONTENTS_CODE)) { -+ error = -EINVAL; -+ goto out_unlock; -+ } -+#endif -+ - fill_ldt(&ldt, &ldt_info); - if (oldmode) - ldt.avl = 0; -diff -urNp linux-2.6.28.8/arch/x86/kernel/machine_kexec_32.c linux-2.6.28.8/arch/x86/kernel/machine_kexec_32.c ---- linux-2.6.28.8/arch/x86/kernel/machine_kexec_32.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/x86/kernel/machine_kexec_32.c 2009-02-21 09:37:48.000000000 -0500 -@@ -34,7 +34,7 @@ static u32 kexec_pmd1[1024] PAGE_ALIGNED - static u32 kexec_pte0[1024] PAGE_ALIGNED; - static u32 kexec_pte1[1024] PAGE_ALIGNED; - --static void set_idt(void *newidt, __u16 limit) -+static void set_idt(struct desc_struct *newidt, __u16 limit) - { - struct desc_ptr curidt; - -@@ -46,7 +46,7 @@ static void set_idt(void *newidt, __u16 - } - - --static void set_gdt(void *newgdt, __u16 limit) -+static void set_gdt(struct desc_struct *newgdt, __u16 limit) - { - struct desc_ptr curgdt; - -@@ -145,7 +145,7 @@ void machine_kexec(struct kimage *image) - } - - control_page = page_address(image->control_code_page); -- memcpy(control_page, relocate_kernel, KEXEC_CONTROL_CODE_MAX_SIZE); -+ memcpy(control_page, (void *)ktla_ktva((unsigned long)relocate_kernel), KEXEC_CONTROL_CODE_MAX_SIZE); - - relocate_kernel_ptr = control_page; - page_list[PA_CONTROL_PAGE] = __pa(control_page); -diff -urNp linux-2.6.28.8/arch/x86/kernel/module_32.c linux-2.6.28.8/arch/x86/kernel/module_32.c ---- linux-2.6.28.8/arch/x86/kernel/module_32.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/x86/kernel/module_32.c 2009-02-21 09:37:48.000000000 -0500 -@@ -23,6 +23,9 @@ - #include <linux/kernel.h> - #include <linux/bug.h> - -+#include <asm/desc.h> -+#include <asm/pgtable.h> -+ - #if 0 - #define DEBUGP printk - #else -@@ -33,9 +36,31 @@ void *module_alloc(unsigned long size) - { - if (size == 0) - return NULL; -+ -+#ifdef CONFIG_PAX_KERNEXEC -+ return __vmalloc(size, GFP_KERNEL | __GFP_HIGHMEM | __GFP_ZERO, PAGE_KERNEL); -+#else - return vmalloc_exec(size); -+#endif -+ - } - -+#ifdef CONFIG_PAX_KERNEXEC -+void *module_alloc_exec(unsigned long size) -+{ -+ struct vm_struct *area; -+ -+ if (size == 0) -+ return NULL; -+ -+ area = __get_vm_area(size, VM_ALLOC, (unsigned long)&MODULES_VADDR, (unsigned long)&MODULES_END); -+ if (area) -+ return area->addr; -+ -+ return NULL; -+} -+EXPORT_SYMBOL(module_alloc_exec); -+#endif - - /* Free memory returned from module_alloc */ - void module_free(struct module *mod, void *module_region) -@@ -45,6 +70,45 @@ void module_free(struct module *mod, voi - table entries. */ - } - -+#ifdef CONFIG_PAX_KERNEXEC -+void module_free_exec(struct module *mod, void *module_region) -+{ -+ struct vm_struct **p, *tmp; -+ -+ if (!module_region) -+ return; -+ -+ if ((PAGE_SIZE-1) & (unsigned long)module_region) { -+ printk(KERN_ERR "Trying to module_free_exec() bad address (%p)\n", module_region); -+ WARN_ON(1); -+ return; -+ } -+ -+ write_lock(&vmlist_lock); -+ for (p = &vmlist; (tmp = *p) != NULL; p = &tmp->next) -+ if (tmp->addr == module_region) -+ break; -+ -+ if (tmp) { -+ unsigned long cr0; -+ -+ pax_open_kernel(cr0); -+ memset(tmp->addr, 0xCC, tmp->size); -+ pax_close_kernel(cr0); -+ -+ *p = tmp->next; -+ kfree(tmp); -+ } -+ write_unlock(&vmlist_lock); -+ -+ if (!tmp) { -+ printk(KERN_ERR "Trying to module_free_exec() nonexistent vm area (%p)\n", -+ module_region); -+ WARN_ON(1); -+ } -+} -+#endif -+ - /* We don't need anything special. */ - int module_frob_arch_sections(Elf_Ehdr *hdr, - Elf_Shdr *sechdrs, -@@ -63,14 +127,20 @@ int apply_relocate(Elf32_Shdr *sechdrs, - unsigned int i; - Elf32_Rel *rel = (void *)sechdrs[relsec].sh_addr; - Elf32_Sym *sym; -- uint32_t *location; -+ uint32_t *plocation, location; -+ -+#ifdef CONFIG_PAX_KERNEXEC -+ unsigned long cr0; -+#endif - - DEBUGP("Applying relocate section %u to %u\n", relsec, - sechdrs[relsec].sh_info); - for (i = 0; i < sechdrs[relsec].sh_size / sizeof(*rel); i++) { - /* This is where to make the change */ -- location = (void *)sechdrs[sechdrs[relsec].sh_info].sh_addr -- + rel[i].r_offset; -+ plocation = (void *)sechdrs[sechdrs[relsec].sh_info].sh_addr + rel[i].r_offset; -+ location = (uint32_t)plocation; -+ if (sechdrs[sechdrs[relsec].sh_info].sh_flags & SHF_EXECINSTR) -+ plocation = ktla_ktva((void *)plocation); - /* This is the symbol it is referring to. Note that all - undefined symbols have been resolved. */ - sym = (Elf32_Sym *)sechdrs[symindex].sh_addr -@@ -78,12 +148,32 @@ int apply_relocate(Elf32_Shdr *sechdrs, - - switch (ELF32_R_TYPE(rel[i].r_info)) { - case R_386_32: -+ -+#ifdef CONFIG_PAX_KERNEXEC -+ pax_open_kernel(cr0); -+#endif -+ - /* We add the value into the location given */ -- *location += sym->st_value; -+ *plocation += sym->st_value; -+ -+#ifdef CONFIG_PAX_KERNEXEC -+ pax_close_kernel(cr0); -+#endif -+ - break; - case R_386_PC32: -+ -+#ifdef CONFIG_PAX_KERNEXEC -+ pax_open_kernel(cr0); -+#endif -+ - /* Add the value, subtract its postition */ -- *location += sym->st_value - (uint32_t)location; -+ *plocation += sym->st_value - location; -+ -+#ifdef CONFIG_PAX_KERNEXEC -+ pax_close_kernel(cr0); -+#endif -+ - break; - default: - printk(KERN_ERR "module %s: Unknown relocation: %u\n", -diff -urNp linux-2.6.28.8/arch/x86/kernel/module_64.c linux-2.6.28.8/arch/x86/kernel/module_64.c ---- linux-2.6.28.8/arch/x86/kernel/module_64.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/x86/kernel/module_64.c 2009-02-21 09:37:48.000000000 -0500 -@@ -40,7 +40,7 @@ void module_free(struct module *mod, voi - table entries. */ - } - --void *module_alloc(unsigned long size) -+static void *__module_alloc(unsigned long size, pgprot_t prot) - { - struct vm_struct *area; - -@@ -54,8 +54,31 @@ void *module_alloc(unsigned long size) - if (!area) - return NULL; - -- return __vmalloc_area(area, GFP_KERNEL, PAGE_KERNEL_EXEC); -+ return __vmalloc_area(area, GFP_KERNEL | __GFP_ZERO, prot); -+} -+ -+#ifdef CONFIG_PAX_KERNEXEC -+void *module_alloc(unsigned long size) -+{ -+ return __module_alloc(size, PAGE_KERNEL); -+} -+ -+void module_free_exec(struct module *mod, void *module_region) -+{ -+ module_free(mod, module_region); -+} -+ -+void *module_alloc_exec(unsigned long size) -+{ -+ return __module_alloc(size, PAGE_KERNEL_RX); - } -+#else -+void *module_alloc(unsigned long size) -+{ -+ return __module_alloc(size, PAGE_KERNEL_EXEC); -+} -+#endif -+ - #endif - - /* We don't need anything special. */ -@@ -77,7 +100,11 @@ int apply_relocate_add(Elf64_Shdr *sechd - Elf64_Rela *rel = (void *)sechdrs[relsec].sh_addr; - Elf64_Sym *sym; - void *loc; -- u64 val; -+ u64 val; -+ -+#ifdef CONFIG_PAX_KERNEXEC -+ unsigned long cr0; -+#endif - - DEBUGP("Applying relocate section %u to %u\n", relsec, - sechdrs[relsec].sh_info); -@@ -101,21 +128,61 @@ int apply_relocate_add(Elf64_Shdr *sechd - case R_X86_64_NONE: - break; - case R_X86_64_64: -+ -+#ifdef CONFIG_PAX_KERNEXEC -+ pax_open_kernel(cr0); -+#endif -+ - *(u64 *)loc = val; -+ -+#ifdef CONFIG_PAX_KERNEXEC -+ pax_close_kernel(cr0); -+#endif -+ - break; - case R_X86_64_32: -+ -+#ifdef CONFIG_PAX_KERNEXEC -+ pax_open_kernel(cr0); -+#endif -+ - *(u32 *)loc = val; -+ -+#ifdef CONFIG_PAX_KERNEXEC -+ pax_close_kernel(cr0); -+#endif -+ - if (val != *(u32 *)loc) - goto overflow; - break; - case R_X86_64_32S: -+ -+#ifdef CONFIG_PAX_KERNEXEC -+ pax_open_kernel(cr0); -+#endif -+ - *(s32 *)loc = val; -+ -+#ifdef CONFIG_PAX_KERNEXEC -+ pax_close_kernel(cr0); -+#endif -+ - if ((s64)val != *(s32 *)loc) - goto overflow; - break; - case R_X86_64_PC32: - val -= (u64)loc; -+ -+#ifdef CONFIG_PAX_KERNEXEC -+ pax_open_kernel(cr0); -+#endif -+ - *(u32 *)loc = val; -+ -+#ifdef CONFIG_PAX_KERNEXEC -+ pax_close_kernel(cr0); -+#endif -+ - #if 0 - if ((s64)val != *(s32 *)loc) - goto overflow; -diff -urNp linux-2.6.28.8/arch/x86/kernel/paravirt.c linux-2.6.28.8/arch/x86/kernel/paravirt.c ---- linux-2.6.28.8/arch/x86/kernel/paravirt.c 2009-03-07 10:24:49.000000000 -0500 -+++ linux-2.6.28.8/arch/x86/kernel/paravirt.c 2009-03-07 10:34:42.000000000 -0500 -@@ -44,7 +44,7 @@ void _paravirt_nop(void) - { - } - --static void __init default_banner(void) -+static void default_banner(void) - { - printk(KERN_INFO "Booting paravirtualized kernel on %s\n", - pv_info.name); -@@ -164,7 +164,7 @@ unsigned paravirt_patch_insns(void *insn - if (insn_len > len || start == NULL) - insn_len = len; - else -- memcpy(insnbuf, start, insn_len); -+ memcpy(insnbuf, ktla_ktva(start), insn_len); - - return insn_len; - } -@@ -292,21 +292,21 @@ void arch_flush_lazy_cpu_mode(void) - preempt_enable(); - } - --struct pv_info pv_info = { -+struct pv_info pv_info __read_only = { - .name = "bare hardware", - .paravirt_enabled = 0, - .kernel_rpl = 0, - .shared_kernel_pmd = 1, /* Only used when CONFIG_X86_PAE is set */ - }; - --struct pv_init_ops pv_init_ops = { -+struct pv_init_ops pv_init_ops __read_only = { - .patch = native_patch, - .banner = default_banner, - .arch_setup = paravirt_nop, - .memory_setup = machine_specific_memory_setup, - }; - --struct pv_time_ops pv_time_ops = { -+struct pv_time_ops pv_time_ops __read_only = { - .time_init = hpet_time_init, - .get_wallclock = native_get_wallclock, - .set_wallclock = native_set_wallclock, -@@ -314,7 +314,7 @@ struct pv_time_ops pv_time_ops = { - .get_tsc_khz = native_calibrate_tsc, - }; - --struct pv_irq_ops pv_irq_ops = { -+struct pv_irq_ops pv_irq_ops __read_only = { - .init_IRQ = native_init_IRQ, - .save_fl = native_save_fl, - .restore_fl = native_restore_fl, -@@ -327,7 +327,7 @@ struct pv_irq_ops pv_irq_ops = { - #endif - }; - --struct pv_cpu_ops pv_cpu_ops = { -+struct pv_cpu_ops pv_cpu_ops __read_only = { - .cpuid = native_cpuid, - .get_debugreg = native_get_debugreg, - .set_debugreg = native_set_debugreg, -@@ -389,7 +389,7 @@ struct pv_cpu_ops pv_cpu_ops = { - }, - }; - --struct pv_apic_ops pv_apic_ops = { -+struct pv_apic_ops pv_apic_ops __read_only = { - #ifdef CONFIG_X86_LOCAL_APIC - .setup_boot_clock = setup_boot_APIC_clock, - .setup_secondary_clock = setup_secondary_APIC_clock, -@@ -397,7 +397,7 @@ struct pv_apic_ops pv_apic_ops = { - #endif - }; - --struct pv_mmu_ops pv_mmu_ops = { -+struct pv_mmu_ops pv_mmu_ops __read_only = { - #ifndef CONFIG_X86_64 - .pagetable_setup_start = native_pagetable_setup_start, - .pagetable_setup_done = native_pagetable_setup_done, -diff -urNp linux-2.6.28.8/arch/x86/kernel/paravirt-spinlocks.c linux-2.6.28.8/arch/x86/kernel/paravirt-spinlocks.c ---- linux-2.6.28.8/arch/x86/kernel/paravirt-spinlocks.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/x86/kernel/paravirt-spinlocks.c 2009-02-21 09:37:48.000000000 -0500 -@@ -13,7 +13,7 @@ default_spin_lock_flags(raw_spinlock_t * - __raw_spin_lock(lock); - } - --struct pv_lock_ops pv_lock_ops = { -+struct pv_lock_ops pv_lock_ops __read_only = { - #ifdef CONFIG_SMP - .spin_is_locked = __ticket_spin_is_locked, - .spin_is_contended = __ticket_spin_is_contended, -diff -urNp linux-2.6.28.8/arch/x86/kernel/process_32.c linux-2.6.28.8/arch/x86/kernel/process_32.c ---- linux-2.6.28.8/arch/x86/kernel/process_32.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/x86/kernel/process_32.c 2009-02-21 09:37:48.000000000 -0500 -@@ -65,8 +65,10 @@ asmlinkage void ret_from_fork(void) __as - DEFINE_PER_CPU(struct task_struct *, current_task) = &init_task; - EXPORT_PER_CPU_SYMBOL(current_task); - -+#ifdef CONFIG_SMP - DEFINE_PER_CPU(int, cpu_number); - EXPORT_PER_CPU_SYMBOL(cpu_number); -+#endif - - /* - * Return saved PC of a blocked thread. -@@ -74,6 +76,7 @@ EXPORT_PER_CPU_SYMBOL(cpu_number); - unsigned long thread_saved_pc(struct task_struct *tsk) - { - return ((unsigned long *)tsk->thread.sp)[3]; -+//XXX return tsk->thread.eip; - } - - #ifndef CONFIG_SMP -@@ -131,7 +134,7 @@ void __show_regs(struct pt_regs *regs, i - unsigned short ss, gs; - const char *board; - -- if (user_mode_vm(regs)) { -+ if (user_mode(regs)) { - sp = regs->sp; - ss = regs->ss & 0xffff; - savesegment(gs, gs); -@@ -212,8 +215,8 @@ int kernel_thread(int (*fn)(void *), voi - regs.bx = (unsigned long) fn; - regs.dx = (unsigned long) arg; - -- regs.ds = __USER_DS; -- regs.es = __USER_DS; -+ regs.ds = __KERNEL_DS; -+ regs.es = __KERNEL_DS; - regs.fs = __KERNEL_PERCPU; - regs.orig_ax = -1; - regs.ip = (unsigned long) kernel_thread_helper; -@@ -235,7 +238,7 @@ void exit_thread(void) - struct task_struct *tsk = current; - struct thread_struct *t = &tsk->thread; - int cpu = get_cpu(); -- struct tss_struct *tss = &per_cpu(init_tss, cpu); -+ struct tss_struct *tss = init_tss + cpu; - - kfree(t->io_bitmap_ptr); - t->io_bitmap_ptr = NULL; -@@ -264,6 +267,7 @@ void flush_thread(void) - { - struct task_struct *tsk = current; - -+ loadsegment(gs, 0); - tsk->thread.debugreg0 = 0; - tsk->thread.debugreg1 = 0; - tsk->thread.debugreg2 = 0; -@@ -303,7 +307,7 @@ int copy_thread(int nr, unsigned long cl - struct task_struct *tsk; - int err; - -- childregs = task_pt_regs(p); -+ childregs = task_stack_page(p) + THREAD_SIZE - sizeof(struct pt_regs) - 8; - *childregs = *regs; - childregs->ax = 0; - childregs->sp = sp; -@@ -332,6 +336,7 @@ int copy_thread(int nr, unsigned long cl - * Set a new TLS for the child thread? - */ - if (clone_flags & CLONE_SETTLS) -+//XXX needs set_fs()? - err = do_set_thread_area(p, -1, - (struct user_desc __user *)childregs->si, 0); - -@@ -553,7 +558,7 @@ struct task_struct * __switch_to(struct - struct thread_struct *prev = &prev_p->thread, - *next = &next_p->thread; - int cpu = smp_processor_id(); -- struct tss_struct *tss = &per_cpu(init_tss, cpu); -+ struct tss_struct *tss = init_tss + cpu; - - /* never put a printk in __switch_to... printk() calls wake_up*() indirectly */ - -@@ -581,6 +586,11 @@ struct task_struct * __switch_to(struct - */ - savesegment(gs, prev->gs); - -+#ifdef CONFIG_PAX_MEMORY_UDEREF -+ if (!segment_eq(task_thread_info(prev_p)->addr_limit, task_thread_info(next_p)->addr_limit)) -+ __set_fs(task_thread_info(next_p)->addr_limit, cpu); -+#endif -+ - /* - * Load the per-thread Thread-Local Storage descriptor. - */ -@@ -719,15 +729,27 @@ unsigned long get_wchan(struct task_stru - return 0; - } - --unsigned long arch_align_stack(unsigned long sp) -+#ifdef CONFIG_PAX_RANDKSTACK -+asmlinkage void pax_randomize_kstack(void) - { -- if (!(current->personality & ADDR_NO_RANDOMIZE) && randomize_va_space) -- sp -= get_random_int() % 8192; -- return sp & ~0xf; --} -+ struct thread_struct *thread = ¤t->thread; -+ unsigned long time; - --unsigned long arch_randomize_brk(struct mm_struct *mm) --{ -- unsigned long range_end = mm->brk + 0x02000000; -- return randomize_range(mm->brk, range_end, 0) ? : mm->brk; -+ if (!randomize_va_space) -+ return; -+ -+ rdtscl(time); -+ -+ /* P4 seems to return a 0 LSB, ignore it */ -+#ifdef CONFIG_MPENTIUM4 -+ time &= 0x1EUL; -+ time <<= 2; -+#else -+ time &= 0xFUL; -+ time <<= 3; -+#endif -+ -+ thread->sp0 ^= time; -+ load_sp0(init_tss + smp_processor_id(), thread); - } -+#endif -diff -urNp linux-2.6.28.8/arch/x86/kernel/process_64.c linux-2.6.28.8/arch/x86/kernel/process_64.c ---- linux-2.6.28.8/arch/x86/kernel/process_64.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/x86/kernel/process_64.c 2009-02-21 09:37:48.000000000 -0500 -@@ -109,6 +109,8 @@ static inline void play_dead(void) - void cpu_idle(void) - { - current_thread_info()->status |= TS_POLLING; -+ current->stack_canary = pax_get_random_long(); -+ write_pda(stack_canary, current->stack_canary); - /* endless idle loop with no priority at all */ - while (1) { - tick_nohz_stop_sched_tick(1); -@@ -223,7 +225,7 @@ void exit_thread(void) - struct thread_struct *t = &me->thread; - - if (me->thread.io_bitmap_ptr) { -- struct tss_struct *tss = &per_cpu(init_tss, get_cpu()); -+ struct tss_struct *tss = init_tss + get_cpu(); - - kfree(t->io_bitmap_ptr); - t->io_bitmap_ptr = NULL; -@@ -558,7 +560,7 @@ __switch_to(struct task_struct *prev_p, - struct thread_struct *prev = &prev_p->thread; - struct thread_struct *next = &next_p->thread; - int cpu = smp_processor_id(); -- struct tss_struct *tss = &per_cpu(init_tss, cpu); -+ struct tss_struct *tss = init_tss + cpu; - unsigned fsindex, gsindex; - - /* we're going to use this soon, after a few expensive things */ -@@ -647,7 +649,6 @@ __switch_to(struct task_struct *prev_p, - (unsigned long)task_stack_page(next_p) + - THREAD_SIZE - PDA_STACKOFFSET); - #ifdef CONFIG_CC_STACKPROTECTOR -- write_pda(stack_canary, next_p->stack_canary); - /* - * Build time only check to make sure the stack_canary is at - * offset 40 in the pda; this is a gcc ABI requirement -@@ -746,12 +747,11 @@ unsigned long get_wchan(struct task_stru - if (!p || p == current || p->state == TASK_RUNNING) - return 0; - stack = (unsigned long)task_stack_page(p); -- if (p->thread.sp < stack || p->thread.sp >= stack+THREAD_SIZE) -+ if (p->thread.sp < stack || p->thread.sp > stack+THREAD_SIZE-8-sizeof(u64)) - return 0; - fp = *(u64 *)(p->thread.sp); - do { -- if (fp < (unsigned long)stack || -- fp >= (unsigned long)stack+THREAD_SIZE) -+ if (fp < stack || fp > stack+THREAD_SIZE-8-sizeof(u64)) - return 0; - ip = *(u64 *)(fp+8); - if (!in_sched_functions(ip)) -@@ -860,16 +860,3 @@ long sys_arch_prctl(int code, unsigned l - { - return do_arch_prctl(current, code, addr); - } -- --unsigned long arch_align_stack(unsigned long sp) --{ -- if (!(current->personality & ADDR_NO_RANDOMIZE) && randomize_va_space) -- sp -= get_random_int() % 8192; -- return sp & ~0xf; --} -- --unsigned long arch_randomize_brk(struct mm_struct *mm) --{ -- unsigned long range_end = mm->brk + 0x02000000; -- return randomize_range(mm->brk, range_end, 0) ? : mm->brk; --} -diff -urNp linux-2.6.28.8/arch/x86/kernel/ptrace.c linux-2.6.28.8/arch/x86/kernel/ptrace.c ---- linux-2.6.28.8/arch/x86/kernel/ptrace.c 2009-03-07 10:24:49.000000000 -0500 -+++ linux-2.6.28.8/arch/x86/kernel/ptrace.c 2009-03-07 10:29:51.000000000 -0500 -@@ -1502,7 +1502,7 @@ void send_sigtrap(struct task_struct *ts - info.si_code = si_code; - - /* User-mode ip? */ -- info.si_addr = user_mode_vm(regs) ? (void __user *) regs->ip : NULL; -+ info.si_addr = user_mode(regs) ? (void __user *) regs->ip : NULL; - - /* Send us the fake SIGTRAP */ - force_sig_info(SIGTRAP, &info, tsk); -diff -urNp linux-2.6.28.8/arch/x86/kernel/reboot.c linux-2.6.28.8/arch/x86/kernel/reboot.c ---- linux-2.6.28.8/arch/x86/kernel/reboot.c 2009-03-07 10:24:49.000000000 -0500 -+++ linux-2.6.28.8/arch/x86/kernel/reboot.c 2009-03-07 10:32:37.000000000 -0500 -@@ -28,7 +28,7 @@ void (*pm_power_off)(void); - EXPORT_SYMBOL(pm_power_off); - - static const struct desc_ptr no_idt = {}; --static int reboot_mode; -+static unsigned short reboot_mode; - enum reboot_type reboot_type = BOOT_KBD; - int reboot_force; - -@@ -210,7 +210,7 @@ static struct dmi_system_id __initdata r - DMI_MATCH(DMI_PRODUCT_NAME, "Dell XPS710"), - }, - }, -- { } -+ { NULL, NULL, {{0, {0}}}, NULL} - }; - - static int __init reboot_init(void) -@@ -226,12 +226,12 @@ core_initcall(reboot_init); - controller to pulse the CPU reset line, which is more thorough, but - doesn't work with at least one type of 486 motherboard. It is easy - to stop this code working; hence the copious comments. */ --static const unsigned long long --real_mode_gdt_entries [3] = -+static struct desc_struct -+real_mode_gdt_entries [3] __read_only = - { -- 0x0000000000000000ULL, /* Null descriptor */ -- 0x00009b000000ffffULL, /* 16-bit real-mode 64k code at 0x00000000 */ -- 0x000093000100ffffULL /* 16-bit real-mode 64k data at 0x00000100 */ -+ {{{0x00000000, 0x00000000}}}, /* Null descriptor */ -+ {{{0x0000ffff, 0x00009b00}}}, /* 16-bit real-mode 64k code at 0x00000000 */ -+ {{{0x0100ffff, 0x00009300}}} /* 16-bit real-mode 64k data at 0x00000100 */ - }; - - static const struct desc_ptr -@@ -280,7 +280,7 @@ static const unsigned char jump_to_bios - * specified by the code and length parameters. - * We assume that length will aways be less that 100! - */ --void machine_real_restart(const unsigned char *code, int length) -+void machine_real_restart(const unsigned char *code, unsigned int length) - { - local_irq_disable(); - -@@ -300,8 +300,8 @@ void machine_real_restart(const unsigned - /* Remap the kernel at virtual address zero, as well as offset zero - from the kernel segment. This assumes the kernel segment starts at - virtual address PAGE_OFFSET. */ -- memcpy(swapper_pg_dir, swapper_pg_dir + KERNEL_PGD_BOUNDARY, -- sizeof(swapper_pg_dir [0]) * KERNEL_PGD_PTRS); -+ clone_pgd_range(swapper_pg_dir, swapper_pg_dir + KERNEL_PGD_BOUNDARY, -+ min_t(unsigned long, KERNEL_PGD_PTRS, KERNEL_PGD_BOUNDARY)); - - /* - * Use `swapper_pg_dir' as our page directory. -@@ -313,16 +313,15 @@ void machine_real_restart(const unsigned - boot)". This seems like a fairly standard thing that gets set by - REBOOT.COM programs, and the previous reset routine did this - too. */ -- *((unsigned short *)0x472) = reboot_mode; -+ *(unsigned short *)(__va(0x472)) = reboot_mode; - - /* For the switch to real mode, copy some code to low memory. It has - to be in the first 64k because it is running in 16-bit mode, and it - has to have the same physical and virtual address, because it turns - off paging. Copy it near the end of the first page, out of the way - of BIOS variables. */ -- memcpy((void *)(0x1000 - sizeof(real_mode_switch) - 100), -- real_mode_switch, sizeof (real_mode_switch)); -- memcpy((void *)(0x1000 - 100), code, length); -+ memcpy(__va(0x1000 - sizeof (real_mode_switch) - 100), real_mode_switch, sizeof (real_mode_switch)); -+ memcpy(__va(0x1000 - 100), code, length); - - /* Set up the IDT for real mode. */ - load_idt(&real_mode_idt); -diff -urNp linux-2.6.28.8/arch/x86/kernel/setup.c linux-2.6.28.8/arch/x86/kernel/setup.c ---- linux-2.6.28.8/arch/x86/kernel/setup.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/x86/kernel/setup.c 2009-02-21 09:37:48.000000000 -0500 -@@ -738,6 +738,7 @@ void start_periodic_check_for_corruption - } - #endif - -+#ifdef CONFIG_X86_RESERVE_LOW_64K - static int __init dmi_low_memory_corruption(const struct dmi_system_id *d) - { - printk(KERN_NOTICE -@@ -749,6 +750,7 @@ static int __init dmi_low_memory_corrupt - - return 0; - } -+#endif - - /* List of systems that have known low memory corruption BIOS problems */ - static struct dmi_system_id __initdata bad_bios_dmi_table[] = { -@@ -845,8 +847,8 @@ void __init setup_arch(char **cmdline_p) - - if (!boot_params.hdr.root_flags) - root_mountflags &= ~MS_RDONLY; -- init_mm.start_code = (unsigned long) _text; -- init_mm.end_code = (unsigned long) _etext; -+ init_mm.start_code = ktla_ktva((unsigned long) _text); -+ init_mm.end_code = ktla_ktva((unsigned long) _etext); - init_mm.end_data = (unsigned long) _edata; - #ifdef CONFIG_X86_32 - init_mm.brk = init_pg_tables_end + PAGE_OFFSET; -@@ -854,9 +856,9 @@ void __init setup_arch(char **cmdline_p) - init_mm.brk = (unsigned long) &_end; - #endif - -- code_resource.start = virt_to_phys(_text); -- code_resource.end = virt_to_phys(_etext)-1; -- data_resource.start = virt_to_phys(_etext); -+ code_resource.start = virt_to_phys(ktla_ktva(_text)); -+ code_resource.end = virt_to_phys(ktla_ktva(_etext))-1; -+ data_resource.start = virt_to_phys(_data); - data_resource.end = virt_to_phys(_edata)-1; - bss_resource.start = virt_to_phys(&__bss_start); - bss_resource.end = virt_to_phys(&__bss_stop)-1; -diff -urNp linux-2.6.28.8/arch/x86/kernel/setup_percpu.c linux-2.6.28.8/arch/x86/kernel/setup_percpu.c ---- linux-2.6.28.8/arch/x86/kernel/setup_percpu.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/x86/kernel/setup_percpu.c 2009-02-21 09:37:48.000000000 -0500 -@@ -179,7 +179,11 @@ void __init setup_per_cpu_areas(void) - cpu, node, __pa(ptr)); - } - #endif -+#ifdef CONFIG_X86_32 -+ __per_cpu_offset[cpu] = ptr - __per_cpu_start; -+#else - per_cpu_offset(cpu) = ptr - __per_cpu_start; -+#endif - memcpy(ptr, __per_cpu_start, __per_cpu_end - __per_cpu_start); - } - -diff -urNp linux-2.6.28.8/arch/x86/kernel/signal_32.c linux-2.6.28.8/arch/x86/kernel/signal_32.c ---- linux-2.6.28.8/arch/x86/kernel/signal_32.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/x86/kernel/signal_32.c 2009-02-21 09:37:48.000000000 -0500 -@@ -367,9 +367,9 @@ __setup_frame(int sig, struct k_sigactio - } - - if (current->mm->context.vdso) -- restorer = VDSO32_SYMBOL(current->mm->context.vdso, sigreturn); -+ restorer = (void __user *)VDSO32_SYMBOL(current->mm->context.vdso, sigreturn); - else -- restorer = &frame->retcode; -+ restorer = (void __user *)&frame->retcode; - if (ka->sa.sa_flags & SA_RESTORER) - restorer = ka->sa.sa_restorer; - -@@ -442,7 +442,7 @@ static int __setup_rt_frame(int sig, str - return -EFAULT; - - /* Set up to return from userspace. */ -- restorer = VDSO32_SYMBOL(current->mm->context.vdso, rt_sigreturn); -+ restorer = (void __user *)VDSO32_SYMBOL(current->mm->context.vdso, rt_sigreturn); - if (ka->sa.sa_flags & SA_RESTORER) - restorer = ka->sa.sa_restorer; - err |= __put_user(restorer, &frame->pretcode); -@@ -612,7 +612,7 @@ static void do_signal(struct pt_regs *re - * X86_32: vm86 regs switched out by assembly code before reaching - * here, so testing against kernel CS suffices. - */ -- if (!user_mode(regs)) -+ if (!user_mode_novm(regs)) - return; - - if (current_thread_info()->status & TS_RESTORE_SIGMASK) -diff -urNp linux-2.6.28.8/arch/x86/kernel/signal_64.c linux-2.6.28.8/arch/x86/kernel/signal_64.c ---- linux-2.6.28.8/arch/x86/kernel/signal_64.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/x86/kernel/signal_64.c 2009-02-21 09:37:48.000000000 -0500 -@@ -239,8 +239,8 @@ static int __setup_rt_frame(int sig, str - err |= setup_sigcontext(&frame->uc.uc_mcontext, regs, set->sig[0], me); - err |= __put_user(fp, &frame->uc.uc_mcontext.fpstate); - if (sizeof(*set) == 16) { -- __put_user(set->sig[0], &frame->uc.uc_sigmask.sig[0]); -- __put_user(set->sig[1], &frame->uc.uc_sigmask.sig[1]); -+ err |= __put_user(set->sig[0], &frame->uc.uc_sigmask.sig[0]); -+ err |= __put_user(set->sig[1], &frame->uc.uc_sigmask.sig[1]); - } else - err |= __copy_to_user(&frame->uc.uc_sigmask, set, sizeof(*set)); - -diff -urNp linux-2.6.28.8/arch/x86/kernel/smpboot.c linux-2.6.28.8/arch/x86/kernel/smpboot.c ---- linux-2.6.28.8/arch/x86/kernel/smpboot.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/x86/kernel/smpboot.c 2009-02-21 09:37:48.000000000 -0500 -@@ -814,6 +814,11 @@ static int __cpuinit do_boot_cpu(int api - .cpu = cpu, - .done = COMPLETION_INITIALIZER_ONSTACK(c_idle.done), - }; -+ -+#ifdef CONFIG_PAX_KERNEXEC -+ unsigned long cr0; -+#endif -+ - INIT_WORK(&c_idle.work, do_fork_idle); - - #ifdef CONFIG_X86_64 -@@ -864,7 +869,17 @@ do_rest: - cpu_pda(cpu)->pcurrent = c_idle.idle; - clear_tsk_thread_flag(c_idle.idle, TIF_FORK); - #endif -+ -+#ifdef CONFIG_PAX_KERNEXEC -+ pax_open_kernel(cr0); -+#endif -+ - early_gdt_descr.address = (unsigned long)get_cpu_gdt_table(cpu); -+ -+#ifdef CONFIG_PAX_KERNEXEC -+ pax_close_kernel(cr0); -+#endif -+ - initial_code = (unsigned long)start_secondary; - stack_start.sp = (void *) c_idle.idle->thread.sp; - -diff -urNp linux-2.6.28.8/arch/x86/kernel/smpcommon.c linux-2.6.28.8/arch/x86/kernel/smpcommon.c ---- linux-2.6.28.8/arch/x86/kernel/smpcommon.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/x86/kernel/smpcommon.c 2009-02-21 09:37:48.000000000 -0500 -@@ -3,9 +3,10 @@ - */ - #include <linux/module.h> - #include <asm/smp.h> -+#include <asm/sections.h> - - #ifdef CONFIG_X86_32 --DEFINE_PER_CPU(unsigned long, this_cpu_off); -+DEFINE_PER_CPU(unsigned long, this_cpu_off) = (unsigned long)__per_cpu_start; - EXPORT_PER_CPU_SYMBOL(this_cpu_off); - - /* -@@ -15,16 +16,19 @@ EXPORT_PER_CPU_SYMBOL(this_cpu_off); - */ - __cpuinit void init_gdt(int cpu) - { -- struct desc_struct gdt; -+ struct desc_struct d, *gdt = get_cpu_gdt_table(cpu); -+ unsigned long base, limit; - -- pack_descriptor(&gdt, __per_cpu_offset[cpu], 0xFFFFF, -- 0x2 | DESCTYPE_S, 0x8); -- gdt.s = 1; -+ base = per_cpu_offset(cpu); -+ limit = PERCPU_ENOUGH_ROOM - 1; -+ if (limit < 64*1024) -+ pack_descriptor(&d, base, limit, 0x80 | DESCTYPE_S | 0x3, 0x4); -+ else -+ pack_descriptor(&d, base, limit >> PAGE_SHIFT, 0x80 | DESCTYPE_S | 0x3, 0xC); - -- write_gdt_entry(get_cpu_gdt_table(cpu), -- GDT_ENTRY_PERCPU, &gdt, DESCTYPE_S); -+ write_gdt_entry(gdt, GDT_ENTRY_PERCPU, &d, DESCTYPE_S); - -- per_cpu(this_cpu_off, cpu) = __per_cpu_offset[cpu]; -+ per_cpu(this_cpu_off, cpu) = base; - per_cpu(cpu_number, cpu) = cpu; - } - #endif -diff -urNp linux-2.6.28.8/arch/x86/kernel/step.c linux-2.6.28.8/arch/x86/kernel/step.c ---- linux-2.6.28.8/arch/x86/kernel/step.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/x86/kernel/step.c 2009-02-21 09:37:48.000000000 -0500 -@@ -23,22 +23,20 @@ unsigned long convert_ip_to_linear(struc - * and APM bios ones we just ignore here. - */ - if ((seg & SEGMENT_TI_MASK) == SEGMENT_LDT) { -- u32 *desc; -+ struct desc_struct *desc; - unsigned long base; - -- seg &= ~7UL; -+ seg >>= 3; - - mutex_lock(&child->mm->context.lock); -- if (unlikely((seg >> 3) >= child->mm->context.size)) -- addr = -1L; /* bogus selector, access would fault */ -+ if (unlikely(seg >= child->mm->context.size)) -+ addr = -EINVAL; - else { -- desc = child->mm->context.ldt + seg; -- base = ((desc[0] >> 16) | -- ((desc[1] & 0xff) << 16) | -- (desc[1] & 0xff000000)); -+ desc = &child->mm->context.ldt[seg]; -+ base = (desc->a >> 16) | ((desc->b & 0xff) << 16) | (desc->b & 0xff000000); - - /* 16-bit code segment? */ -- if (!((desc[1] >> 22) & 1)) -+ if (!((desc->b >> 22) & 1)) - addr &= 0xffff; - addr += base; - } -@@ -54,6 +52,9 @@ static int is_setting_trap_flag(struct t - unsigned char opcode[15]; - unsigned long addr = convert_ip_to_linear(child, regs); - -+ if (addr == -EINVAL) -+ return 0; -+ - copied = access_process_vm(child, addr, opcode, sizeof(opcode), 0); - for (i = 0; i < copied; i++) { - switch (opcode[i]) { -@@ -75,7 +76,7 @@ static int is_setting_trap_flag(struct t - - #ifdef CONFIG_X86_64 - case 0x40 ... 0x4f: -- if (regs->cs != __USER_CS) -+ if ((regs->cs & 0xffff) != __USER_CS) - /* 32-bit mode: register increment */ - return 0; - /* 64-bit mode: REX prefix */ -diff -urNp linux-2.6.28.8/arch/x86/kernel/syscall_table_32.S linux-2.6.28.8/arch/x86/kernel/syscall_table_32.S ---- linux-2.6.28.8/arch/x86/kernel/syscall_table_32.S 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/x86/kernel/syscall_table_32.S 2009-02-21 09:37:48.000000000 -0500 -@@ -1,3 +1,4 @@ -+.section .rodata,"a",@progbits - ENTRY(sys_call_table) - .long sys_restart_syscall /* 0 - old "setup()" system call, used for restarting */ - .long sys_exit -diff -urNp linux-2.6.28.8/arch/x86/kernel/sys_i386_32.c linux-2.6.28.8/arch/x86/kernel/sys_i386_32.c ---- linux-2.6.28.8/arch/x86/kernel/sys_i386_32.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/x86/kernel/sys_i386_32.c 2009-02-21 09:37:48.000000000 -0500 -@@ -24,6 +24,21 @@ - - #include <asm/syscalls.h> - -+int i386_mmap_check(unsigned long addr, unsigned long len, unsigned long flags) -+{ -+ unsigned long pax_task_size = TASK_SIZE; -+ -+#ifdef CONFIG_PAX_SEGMEXEC -+ if (current->mm->pax_flags & MF_PAX_SEGMEXEC) -+ pax_task_size = SEGMEXEC_TASK_SIZE; -+#endif -+ -+ if (len > pax_task_size || addr > pax_task_size - len) -+ return -EINVAL; -+ -+ return 0; -+} -+ - asmlinkage long sys_mmap2(unsigned long addr, unsigned long len, - unsigned long prot, unsigned long flags, - unsigned long fd, unsigned long pgoff) -@@ -83,6 +98,205 @@ out: - return err; - } - -+unsigned long -+arch_get_unmapped_area(struct file *filp, unsigned long addr, -+ unsigned long len, unsigned long pgoff, unsigned long flags) -+{ -+ struct mm_struct *mm = current->mm; -+ struct vm_area_struct *vma; -+ unsigned long start_addr, pax_task_size = TASK_SIZE; -+ -+#ifdef CONFIG_PAX_SEGMEXEC -+ if (mm->pax_flags & MF_PAX_SEGMEXEC) -+ pax_task_size = SEGMEXEC_TASK_SIZE; -+#endif -+ -+ if (len > pax_task_size) -+ return -ENOMEM; -+ -+ if (flags & MAP_FIXED) -+ return addr; -+ -+#ifdef CONFIG_PAX_RANDMMAP -+ if (!(mm->pax_flags & MF_PAX_RANDMMAP)) -+#endif -+ -+ if (addr) { -+ addr = PAGE_ALIGN(addr); -+ vma = find_vma(mm, addr); -+ if (pax_task_size - len >= addr && -+ (!vma || addr + len <= vma->vm_start)) -+ return addr; -+ } -+ if (len > mm->cached_hole_size) { -+ start_addr = addr = mm->free_area_cache; -+ } else { -+ start_addr = addr = mm->mmap_base; -+ mm->cached_hole_size = 0; -+ } -+ -+#ifdef CONFIG_PAX_PAGEEXEC -+ if (!nx_enabled && (mm->pax_flags & MF_PAX_PAGEEXEC) && (flags & MAP_EXECUTABLE) && start_addr >= mm->mmap_base) { -+ start_addr = 0x00110000UL; -+ -+#ifdef CONFIG_PAX_RANDMMAP -+ if (mm->pax_flags & MF_PAX_RANDMMAP) -+ start_addr += mm->delta_mmap & 0x03FFF000UL; -+#endif -+ -+ if (mm->start_brk <= start_addr && start_addr < mm->mmap_base) -+ start_addr = addr = mm->mmap_base; -+ else -+ addr = start_addr; -+ } -+#endif -+ -+full_search: -+ for (vma = find_vma(mm, addr); ; vma = vma->vm_next) { -+ /* At this point: (!vma || addr < vma->vm_end). */ -+ if (pax_task_size - len < addr) { -+ /* -+ * Start a new search - just in case we missed -+ * some holes. -+ */ -+ if (start_addr != mm->mmap_base) { -+ start_addr = addr = mm->mmap_base; -+ mm->cached_hole_size = 0; -+ goto full_search; -+ } -+ return -ENOMEM; -+ } -+ if (!vma || addr + len <= vma->vm_start) { -+ /* -+ * Remember the place where we stopped the search: -+ */ -+ mm->free_area_cache = addr + len; -+ return addr; -+ } -+ if (addr + mm->cached_hole_size < vma->vm_start) -+ mm->cached_hole_size = vma->vm_start - addr; -+ addr = vma->vm_end; -+ if (mm->start_brk <= addr && addr < mm->mmap_base) { -+ start_addr = addr = mm->mmap_base; -+ mm->cached_hole_size = 0; -+ goto full_search; -+ } -+ } -+} -+ -+unsigned long -+arch_get_unmapped_area_topdown(struct file *filp, const unsigned long addr0, -+ const unsigned long len, const unsigned long pgoff, -+ const unsigned long flags) -+{ -+ struct vm_area_struct *vma; -+ struct mm_struct *mm = current->mm; -+ unsigned long base = mm->mmap_base, addr = addr0, pax_task_size = TASK_SIZE; -+ -+#ifdef CONFIG_PAX_SEGMEXEC -+ if (mm->pax_flags & MF_PAX_SEGMEXEC) -+ pax_task_size = SEGMEXEC_TASK_SIZE; -+#endif -+ -+ /* requested length too big for entire address space */ -+ if (len > pax_task_size) -+ return -ENOMEM; -+ -+ if (flags & MAP_FIXED) -+ return addr; -+ -+#ifdef CONFIG_PAX_PAGEEXEC -+ if (!nx_enabled && (mm->pax_flags & MF_PAX_PAGEEXEC) && (flags & MAP_EXECUTABLE)) -+ goto bottomup; -+#endif -+ -+#ifdef CONFIG_PAX_RANDMMAP -+ if (!(mm->pax_flags & MF_PAX_RANDMMAP)) -+#endif -+ -+ /* requesting a specific address */ -+ if (addr) { -+ addr = PAGE_ALIGN(addr); -+ vma = find_vma(mm, addr); -+ if (pax_task_size - len >= addr && -+ (!vma || addr + len <= vma->vm_start)) -+ return addr; -+ } -+ -+ /* check if free_area_cache is useful for us */ -+ if (len <= mm->cached_hole_size) { -+ mm->cached_hole_size = 0; -+ mm->free_area_cache = mm->mmap_base; -+ } -+ -+ /* either no address requested or can't fit in requested address hole */ -+ addr = mm->free_area_cache; -+ -+ /* make sure it can fit in the remaining address space */ -+ if (addr > len) { -+ vma = find_vma(mm, addr-len); -+ if (!vma || addr <= vma->vm_start) -+ /* remember the address as a hint for next time */ -+ return (mm->free_area_cache = addr-len); -+ } -+ -+ if (mm->mmap_base < len) -+ goto bottomup; -+ -+ addr = mm->mmap_base-len; -+ -+ do { -+ /* -+ * Lookup failure means no vma is above this address, -+ * else if new region fits below vma->vm_start, -+ * return with success: -+ */ -+ vma = find_vma(mm, addr); -+ if (!vma || addr+len <= vma->vm_start) -+ /* remember the address as a hint for next time */ -+ return (mm->free_area_cache = addr); -+ -+ /* remember the largest hole we saw so far */ -+ if (addr + mm->cached_hole_size < vma->vm_start) -+ mm->cached_hole_size = vma->vm_start - addr; -+ -+ /* try just below the current vma->vm_start */ -+ addr = vma->vm_start-len; -+ } while (len < vma->vm_start); -+ -+bottomup: -+ /* -+ * A failed mmap() very likely causes application failure, -+ * so fall back to the bottom-up function here. This scenario -+ * can happen with large stack limits and large mmap() -+ * allocations. -+ */ -+ -+#ifdef CONFIG_PAX_SEGMEXEC -+ if (mm->pax_flags & MF_PAX_SEGMEXEC) -+ mm->mmap_base = SEGMEXEC_TASK_UNMAPPED_BASE; -+ else -+#endif -+ -+ mm->mmap_base = TASK_UNMAPPED_BASE; -+ -+#ifdef CONFIG_PAX_RANDMMAP -+ if (mm->pax_flags & MF_PAX_RANDMMAP) -+ mm->mmap_base += mm->delta_mmap; -+#endif -+ -+ mm->free_area_cache = mm->mmap_base; -+ mm->cached_hole_size = ~0UL; -+ addr = arch_get_unmapped_area(filp, addr0, len, pgoff, flags); -+ /* -+ * Restore the topdown base: -+ */ -+ mm->mmap_base = base; -+ mm->free_area_cache = base; -+ mm->cached_hole_size = ~0UL; -+ -+ return addr; -+} - - struct sel_arg_struct { - unsigned long n; -diff -urNp linux-2.6.28.8/arch/x86/kernel/sys_x86_64.c linux-2.6.28.8/arch/x86/kernel/sys_x86_64.c ---- linux-2.6.28.8/arch/x86/kernel/sys_x86_64.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/x86/kernel/sys_x86_64.c 2009-02-21 09:37:48.000000000 -0500 -@@ -47,8 +47,8 @@ out: - return error; - } - --static void find_start_end(unsigned long flags, unsigned long *begin, -- unsigned long *end) -+static void find_start_end(struct mm_struct *mm, unsigned long flags, -+ unsigned long *begin, unsigned long *end) - { - if (!test_thread_flag(TIF_IA32) && (flags & MAP_32BIT)) { - unsigned long new_begin; -@@ -67,7 +67,7 @@ static void find_start_end(unsigned long - *begin = new_begin; - } - } else { -- *begin = TASK_UNMAPPED_BASE; -+ *begin = mm->mmap_base; - *end = TASK_SIZE; - } - } -@@ -84,11 +84,15 @@ arch_get_unmapped_area(struct file *filp - if (flags & MAP_FIXED) - return addr; - -- find_start_end(flags, &begin, &end); -+ find_start_end(mm, flags, &begin, &end); - - if (len > end) - return -ENOMEM; - -+#ifdef CONFIG_PAX_RANDMMAP -+ if (!(mm->pax_flags & MF_PAX_RANDMMAP)) -+#endif -+ - if (addr) { - addr = PAGE_ALIGN(addr); - vma = find_vma(mm, addr); -@@ -143,7 +147,7 @@ arch_get_unmapped_area_topdown(struct fi - { - struct vm_area_struct *vma; - struct mm_struct *mm = current->mm; -- unsigned long addr = addr0; -+ unsigned long base = mm->mmap_base, addr = addr0; - - /* requested length too big for entire address space */ - if (len > TASK_SIZE) -@@ -156,6 +160,10 @@ arch_get_unmapped_area_topdown(struct fi - if (!test_thread_flag(TIF_IA32) && (flags & MAP_32BIT)) - goto bottomup; - -+#ifdef CONFIG_PAX_RANDMMAP -+ if (!(mm->pax_flags & MF_PAX_RANDMMAP)) -+#endif -+ - /* requesting a specific address */ - if (addr) { - addr = PAGE_ALIGN(addr); -@@ -213,13 +221,21 @@ bottomup: - * can happen with large stack limits and large mmap() - * allocations. - */ -+ mm->mmap_base = TASK_UNMAPPED_BASE; -+ -+#ifdef CONFIG_PAX_RANDMMAP -+ if (mm->pax_flags & MF_PAX_RANDMMAP) -+ mm->mmap_base += mm->delta_mmap; -+#endif -+ -+ mm->free_area_cache = mm->mmap_base; - mm->cached_hole_size = ~0UL; -- mm->free_area_cache = TASK_UNMAPPED_BASE; - addr = arch_get_unmapped_area(filp, addr0, len, pgoff, flags); - /* - * Restore the topdown base: - */ -- mm->free_area_cache = mm->mmap_base; -+ mm->mmap_base = base; -+ mm->free_area_cache = base; - mm->cached_hole_size = ~0UL; - - return addr; -diff -urNp linux-2.6.28.8/arch/x86/kernel/time_32.c linux-2.6.28.8/arch/x86/kernel/time_32.c ---- linux-2.6.28.8/arch/x86/kernel/time_32.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/x86/kernel/time_32.c 2009-02-21 09:37:48.000000000 -0500 -@@ -47,22 +47,32 @@ unsigned long profile_pc(struct pt_regs - unsigned long pc = instruction_pointer(regs); - - #ifdef CONFIG_SMP -- if (!user_mode_vm(regs) && in_lock_functions(pc)) { -+ if (!user_mode(regs) && in_lock_functions(pc)) { - #ifdef CONFIG_FRAME_POINTER -- return *(unsigned long *)(regs->bp + sizeof(long)); -+ return ktla_ktva(*(unsigned long *)(regs->bp + sizeof(long))); - #else - unsigned long *sp = (unsigned long *)®s->sp; - - /* Return address is either directly at stack pointer - or above a saved flags. Eflags has bits 22-31 zero, - kernel addresses don't. */ -+ -+#ifdef CONFIG_PAX_KERNEXEC -+ return ktla_ktva(sp[0]); -+#else - if (sp[0] >> 22) - return sp[0]; - if (sp[1] >> 22) - return sp[1]; - #endif -+ -+#endif - } - #endif -+ -+ if (!user_mode(regs)) -+ pc = ktla_ktva(pc); -+ - return pc; - } - EXPORT_SYMBOL(profile_pc); -diff -urNp linux-2.6.28.8/arch/x86/kernel/time_64.c linux-2.6.28.8/arch/x86/kernel/time_64.c ---- linux-2.6.28.8/arch/x86/kernel/time_64.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/x86/kernel/time_64.c 2009-02-21 09:37:48.000000000 -0500 -@@ -34,7 +34,7 @@ unsigned long profile_pc(struct pt_regs - /* Assume the lock function has either no stack frame or a copy - of flags from PUSHF - Eflags always has bits 22 and up cleared unlike kernel addresses. */ -- if (!user_mode_vm(regs) && in_lock_functions(pc)) { -+ if (!user_mode(regs) && in_lock_functions(pc)) { - #ifdef CONFIG_FRAME_POINTER - return *(unsigned long *)(regs->bp + sizeof(long)); - #else -diff -urNp linux-2.6.28.8/arch/x86/kernel/tlb_32.c linux-2.6.28.8/arch/x86/kernel/tlb_32.c ---- linux-2.6.28.8/arch/x86/kernel/tlb_32.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/x86/kernel/tlb_32.c 2009-02-21 09:37:48.000000000 -0500 -@@ -5,7 +5,7 @@ - #include <asm/tlbflush.h> - - DEFINE_PER_CPU(struct tlb_state, cpu_tlbstate) -- ____cacheline_aligned = { &init_mm, 0, }; -+ ____cacheline_aligned = { &init_mm, 0, {0} }; - - /* must come after the send_IPI functions above for inlining */ - #include <mach_ipi.h> -diff -urNp linux-2.6.28.8/arch/x86/kernel/tls.c linux-2.6.28.8/arch/x86/kernel/tls.c ---- linux-2.6.28.8/arch/x86/kernel/tls.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/x86/kernel/tls.c 2009-02-21 09:37:48.000000000 -0500 -@@ -85,6 +85,11 @@ int do_set_thread_area(struct task_struc - if (idx < GDT_ENTRY_TLS_MIN || idx > GDT_ENTRY_TLS_MAX) - return -EINVAL; - -+#ifdef CONFIG_PAX_SEGMEXEC -+ if ((p->mm->pax_flags & MF_PAX_SEGMEXEC) && (info.contents & MODIFY_LDT_CONTENTS_CODE)) -+ return -EINVAL; -+#endif -+ - set_tls_desc(p, idx, &info, 1); - - return 0; -diff -urNp linux-2.6.28.8/arch/x86/kernel/traps.c linux-2.6.28.8/arch/x86/kernel/traps.c ---- linux-2.6.28.8/arch/x86/kernel/traps.c 2009-03-07 10:24:49.000000000 -0500 -+++ linux-2.6.28.8/arch/x86/kernel/traps.c 2009-03-07 10:29:51.000000000 -0500 -@@ -79,14 +79,6 @@ asmlinkage int system_call(void); - - /* Do we ignore FPU interrupts ? */ - char ignore_fpu_irq; -- --/* -- * The IDT has to be page-aligned to simplify the Pentium -- * F0 0F bug workaround.. We have a special link segment -- * for this. -- */ --gate_desc idt_table[256] -- __attribute__((__section__(".data.idt"))) = { { { { 0, 0 } } }, }; - #endif - - static int ignore_nmis; -@@ -121,7 +113,7 @@ static inline void preempt_conditional_c - static inline void - die_if_kernel(const char *str, struct pt_regs *regs, long err) - { -- if (!user_mode_vm(regs)) -+ if (!user_mode(regs)) - die(str, regs, err); - } - -@@ -138,7 +130,7 @@ static int lazy_iobitmap_copy(void) - int cpu; - - cpu = get_cpu(); -- tss = &per_cpu(init_tss, cpu); -+ tss = init_tss + cpu; - thread = ¤t->thread; - - if (tss->x86_tss.io_bitmap_base == INVALID_IO_BITMAP_OFFSET_LAZY && -@@ -174,7 +166,7 @@ do_trap(int trapnr, int signr, char *str - struct task_struct *tsk = current; - - #ifdef CONFIG_X86_32 -- if (regs->flags & X86_VM_MASK) { -+ if (v8086_mode(regs)) { - /* - * traps 0, 1, 3, 4, and 5 should be forwarded to vm86. - * On nmi (interrupt 2), do_trap should not be called. -@@ -185,7 +177,7 @@ do_trap(int trapnr, int signr, char *str - } - #endif - -- if (!user_mode(regs)) -+ if (!user_mode_novm(regs)) - goto kernel_trap; - - #ifdef CONFIG_X86_32 -@@ -227,6 +219,12 @@ kernel_trap: - tsk->thread.trap_no = trapnr; - die(str, regs, error_code); - } -+ -+#ifdef CONFIG_PAX_REFCOUNT -+ if (trapnr == 4) -+ pax_report_refcount_overflow(regs); -+#endif -+ - return; - - #ifdef CONFIG_X86_32 -@@ -318,14 +316,30 @@ do_general_protection(struct pt_regs *re - return; - } - -- if (regs->flags & X86_VM_MASK) -+ if (v8086_mode(regs)) - goto gp_in_vm86; - #endif - - tsk = current; -- if (!user_mode(regs)) -+ if (!user_mode_novm(regs)) - goto gp_in_kernel; - -+#if defined(CONFIG_X86_32) && defined(CONFIG_PAX_PAGEEXEC) -+ if (!nx_enabled && tsk->mm && (tsk->mm->pax_flags & MF_PAX_PAGEEXEC)) { -+ struct mm_struct *mm = tsk->mm; -+ unsigned long limit; -+ -+ down_write(&mm->mmap_sem); -+ limit = mm->context.user_cs_limit; -+ if (limit < TASK_SIZE) { -+ track_exec_limit(mm, limit, TASK_SIZE, VM_EXEC); -+ up_write(&mm->mmap_sem); -+ return; -+ } -+ up_write(&mm->mmap_sem); -+ } -+#endif -+ - tsk->thread.error_code = error_code; - tsk->thread.trap_no = 13; - -@@ -358,6 +372,13 @@ gp_in_kernel: - if (notify_die(DIE_GPF, "general protection fault", regs, - error_code, 13, SIGSEGV) == NOTIFY_STOP) - return; -+ -+#if defined(CONFIG_X86_32) && defined(CONFIG_PAX_KERNEXEC) -+ if ((regs->cs & 0xFFFF) == __KERNEL_CS) -+ die("PAX: suspicious general protection fault", regs, error_code); -+ else -+#endif -+ - die("general protection fault", regs, error_code); - } - -@@ -604,7 +625,7 @@ dotraplinkage void __kprobes do_debug(st - } - - #ifdef CONFIG_X86_32 -- if (regs->flags & X86_VM_MASK) -+ if (v8086_mode(regs)) - goto debug_vm86; - #endif - -@@ -616,7 +637,7 @@ dotraplinkage void __kprobes do_debug(st - * kernel space (but re-enable TF when returning to user mode). - */ - if (condition & DR_STEP) { -- if (!user_mode(regs)) -+ if (!user_mode_novm(regs)) - goto clear_TF_reenable; - } - -@@ -808,7 +829,7 @@ do_simd_coprocessor_error(struct pt_regs - * Handle strange cache flush from user space exception - * in all other cases. This is undocumented behaviour. - */ -- if (regs->flags & X86_VM_MASK) { -+ if (v8086_mode(regs)) { - handle_vm86_fault((struct kernel_vm86_regs *)regs, error_code); - return; - } -@@ -837,19 +858,14 @@ do_spurious_interrupt_bug(struct pt_regs - #ifdef CONFIG_X86_32 - unsigned long patch_espfix_desc(unsigned long uesp, unsigned long kesp) - { -- struct desc_struct *gdt = get_cpu_gdt_table(smp_processor_id()); - unsigned long base = (kesp - uesp) & -THREAD_SIZE; - unsigned long new_kesp = kesp - base; - unsigned long lim_pages = (new_kesp | (THREAD_SIZE - 1)) >> PAGE_SHIFT; -- __u64 desc = *(__u64 *)&gdt[GDT_ENTRY_ESPFIX_SS]; -+ struct desc_struct ss; - - /* Set up base for espfix segment */ -- desc &= 0x00f0ff0000000000ULL; -- desc |= ((((__u64)base) << 16) & 0x000000ffffff0000ULL) | -- ((((__u64)base) << 32) & 0xff00000000000000ULL) | -- ((((__u64)lim_pages) << 32) & 0x000f000000000000ULL) | -- (lim_pages & 0xffff); -- *(__u64 *)&gdt[GDT_ENTRY_ESPFIX_SS] = desc; -+ pack_descriptor(&ss, base, lim_pages, 0x93, 0xC); -+ write_gdt_entry(get_cpu_gdt_table(smp_processor_id()), GDT_ENTRY_ESPFIX_SS, &ss, DESCTYPE_S); - - return new_kesp; - } -diff -urNp linux-2.6.28.8/arch/x86/kernel/tsc.c linux-2.6.28.8/arch/x86/kernel/tsc.c ---- linux-2.6.28.8/arch/x86/kernel/tsc.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/x86/kernel/tsc.c 2009-02-21 09:37:48.000000000 -0500 -@@ -728,7 +728,7 @@ static struct dmi_system_id __initdata b - DMI_MATCH(DMI_BOARD_NAME, "2635FA0"), - }, - }, -- {} -+ { NULL, NULL, {{0, {0}}}, NULL} - }; - - /* -diff -urNp linux-2.6.28.8/arch/x86/kernel/vm86_32.c linux-2.6.28.8/arch/x86/kernel/vm86_32.c ---- linux-2.6.28.8/arch/x86/kernel/vm86_32.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/x86/kernel/vm86_32.c 2009-02-21 09:37:48.000000000 -0500 -@@ -148,7 +148,7 @@ struct pt_regs *save_v86_state(struct ke - do_exit(SIGSEGV); - } - -- tss = &per_cpu(init_tss, get_cpu()); -+ tss = init_tss + get_cpu(); - current->thread.sp0 = current->thread.saved_sp0; - current->thread.sysenter_cs = __KERNEL_CS; - load_sp0(tss, ¤t->thread); -@@ -325,7 +325,7 @@ static void do_sys_vm86(struct kernel_vm - tsk->thread.saved_fs = info->regs32->fs; - savesegment(gs, tsk->thread.saved_gs); - -- tss = &per_cpu(init_tss, get_cpu()); -+ tss = init_tss + get_cpu(); - tsk->thread.sp0 = (unsigned long) &info->VM86_TSS_ESP0; - if (cpu_has_sep) - tsk->thread.sysenter_cs = 0; -diff -urNp linux-2.6.28.8/arch/x86/kernel/vmi_32.c linux-2.6.28.8/arch/x86/kernel/vmi_32.c ---- linux-2.6.28.8/arch/x86/kernel/vmi_32.c 2009-02-08 00:54:27.000000000 -0500 -+++ linux-2.6.28.8/arch/x86/kernel/vmi_32.c 2009-02-21 09:37:48.000000000 -0500 -@@ -102,18 +102,43 @@ static unsigned patch_internal(int call, - { - u64 reloc; - struct vmi_relocation_info *const rel = (struct vmi_relocation_info *)&reloc; -+ -+#ifdef CONFIG_PAX_KERNEXEC -+ unsigned long cr0; -+#endif -+ - reloc = call_vrom_long_func(vmi_rom, get_reloc, call); - switch(rel->type) { - case VMI_RELOCATION_CALL_REL: - BUG_ON(len < 5); -+ -+#ifdef CONFIG_PAX_KERNEXEC -+ pax_open_kernel(cr0); -+#endif -+ - *(char *)insnbuf = MNEM_CALL; - patch_offset(insnbuf, ip, (unsigned long)rel->eip); -+ -+#ifdef CONFIG_PAX_KERNEXEC -+ pax_close_kernel(cr0); -+#endif -+ - return 5; - - case VMI_RELOCATION_JUMP_REL: - BUG_ON(len < 5); -+ -+#ifdef CONFIG_PAX_KERNEXEC -+ pax_open_kernel(cr0); -+#endif -+ - *(char *)insnbuf = MNEM_JMP; - patch_offset(insnbuf, ip, (unsigned long)rel->eip); -+ -+#ifdef CONFIG_PAX_KERNEXEC -+ pax_close_kernel(cr0); -+#endif -+ - return 5; - - case VMI_RELOCATION_NOP: -@@ -526,14 +551,14 @@ static void vmi_set_pud(pud_t *pudp, pud - - static void vmi_pte_clear(struct mm_struct *mm, unsigned long addr, pte_t *ptep) - { -- const pte_t pte = { .pte = 0 }; -+ const pte_t pte = __pte(0ULL); - vmi_check_page_type(__pa(ptep) >> PAGE_SHIFT, VMI_PAGE_PTE); - vmi_ops.set_pte(pte, ptep, vmi_flags_addr(mm, addr, VMI_PAGE_PT, 0)); - } - - static void vmi_pmd_clear(pmd_t *pmd) - { -- const pte_t pte = { .pte = 0 }; -+ const pte_t pte = __pte(0ULL); - vmi_check_page_type(__pa(pmd) >> PAGE_SHIFT, VMI_PAGE_PMD); - vmi_ops.set_pte(pte, (pte_t *)pmd, VMI_PAGE_PD); - } -@@ -562,8 +587,8 @@ vmi_startup_ipi_hook(int phys_apicid, un - ap.ss = __KERNEL_DS; - ap.esp = (unsigned long) start_esp; - -- ap.ds = __USER_DS; -- ap.es = __USER_DS; -+ ap.ds = __KERNEL_DS; -+ ap.es = __KERNEL_DS; - ap.fs = __KERNEL_PERCPU; - ap.gs = 0; - -@@ -758,12 +783,20 @@ static inline int __init activate_vmi(vo - u64 reloc; - const struct vmi_relocation_info *rel = (struct vmi_relocation_info *)&reloc; - -+#ifdef CONFIG_PAX_KERNEXEC -+ unsigned long cr0; -+#endif -+ - if (call_vrom_func(vmi_rom, vmi_init) != 0) { - printk(KERN_ERR "VMI ROM failed to initialize!"); - return 0; - } - savesegment(cs, kernel_cs); - -+#ifdef CONFIG_PAX_KERNEXEC -+ pax_open_kernel(cr0); -+#endif -+ - pv_info.paravirt_enabled = 1; - pv_info.kernel_rpl = kernel_cs & SEGMENT_RPL_MASK; - pv_info.name = "vmi"; -@@ -954,6 +987,10 @@ static inline int __init activate_vmi(vo - - para_fill(pv_irq_ops.safe_halt, Halt); - -+#ifdef CONFIG_PAX_KERNEXEC -+ pax_close_kernel(cr0); -+#endif -+ - /* - * Alternative instruction rewriting doesn't happen soon enough - * to convert VMI_IRET to a call instead of a jump; so we have -diff -urNp linux-2.6.28.8/arch/x86/kernel/vmlinux_32.lds.S linux-2.6.28.8/arch/x86/kernel/vmlinux_32.lds.S ---- linux-2.6.28.8/arch/x86/kernel/vmlinux_32.lds.S 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/x86/kernel/vmlinux_32.lds.S 2009-03-07 10:35:39.000000000 -0500 -@@ -15,6 +15,20 @@ - #include <asm/page.h> - #include <asm/cache.h> - #include <asm/boot.h> -+#include <asm/segment.h> -+ -+#ifdef CONFIG_X86_PAE -+#define PMD_SHIFT 21 -+#else -+#define PMD_SHIFT 22 -+#endif -+#define PMD_SIZE (1 << PMD_SHIFT) -+ -+#ifdef CONFIG_PAX_KERNEXEC -+#define __KERNEL_TEXT_OFFSET (__PAGE_OFFSET + (((____LOAD_PHYSICAL_ADDR + 2*(PMD_SIZE - 1)) - 1) & ~(PMD_SIZE - 1))) -+#else -+#define __KERNEL_TEXT_OFFSET 0 -+#endif - - OUTPUT_FORMAT("elf32-i386", "elf32-i386", "elf32-i386") - OUTPUT_ARCH(i386) -@@ -22,81 +36,23 @@ ENTRY(phys_startup_32) - jiffies = jiffies_64; - - PHDRS { -- text PT_LOAD FLAGS(5); /* R_E */ -- data PT_LOAD FLAGS(7); /* RWE */ -- note PT_NOTE FLAGS(0); /* ___ */ -+ initdata PT_LOAD FLAGS(6); /* RW_ */ -+ percpu PT_LOAD FLAGS(6); /* RW_ */ -+ inittext PT_LOAD FLAGS(5); /* R_E */ -+ text PT_LOAD FLAGS(5); /* R_E */ -+ rodata PT_LOAD FLAGS(4); /* R__ */ -+ data PT_LOAD FLAGS(6); /* RW_ */ -+ note PT_NOTE FLAGS(0); /* ___ */ - } - SECTIONS - { -- . = LOAD_OFFSET + LOAD_PHYSICAL_ADDR; -- phys_startup_32 = startup_32 - LOAD_OFFSET; -- -- .text.head : AT(ADDR(.text.head) - LOAD_OFFSET) { -- _text = .; /* Text and read-only data */ -- *(.text.head) -- } :text = 0x9090 -- -- /* read-only */ -- .text : AT(ADDR(.text) - LOAD_OFFSET) { -- . = ALIGN(PAGE_SIZE); /* not really needed, already page aligned */ -- *(.text.page_aligned) -- TEXT_TEXT -- SCHED_TEXT -- LOCK_TEXT -- KPROBES_TEXT -- *(.fixup) -- *(.gnu.warning) -- _etext = .; /* End of text section */ -- } :text = 0x9090 -- -- NOTES :text :note -- -- . = ALIGN(16); /* Exception table */ -- __ex_table : AT(ADDR(__ex_table) - LOAD_OFFSET) { -- __start___ex_table = .; -- *(__ex_table) -- __stop___ex_table = .; -- } :text = 0x9090 -- -- RODATA -- -- /* writeable */ -- . = ALIGN(PAGE_SIZE); -- .data : AT(ADDR(.data) - LOAD_OFFSET) { /* Data */ -- DATA_DATA -- CONSTRUCTORS -- } :data -- -- . = ALIGN(PAGE_SIZE); -- .data_nosave : AT(ADDR(.data_nosave) - LOAD_OFFSET) { -- __nosave_begin = .; -- *(.data.nosave) -- . = ALIGN(PAGE_SIZE); -- __nosave_end = .; -- } -+ . = LOAD_OFFSET + ____LOAD_PHYSICAL_ADDR; - -- . = ALIGN(PAGE_SIZE); -- .data.page_aligned : AT(ADDR(.data.page_aligned) - LOAD_OFFSET) { -- *(.data.page_aligned) -- *(.data.idt) -- } -- -- . = ALIGN(32); -- .data.cacheline_aligned : AT(ADDR(.data.cacheline_aligned) - LOAD_OFFSET) { -- *(.data.cacheline_aligned) -- } -- -- /* rarely changed data like cpu maps */ -- . = ALIGN(32); -- .data.read_mostly : AT(ADDR(.data.read_mostly) - LOAD_OFFSET) { -- *(.data.read_mostly) -- _edata = .; /* End of data section */ -- } -- -- . = ALIGN(THREAD_SIZE); /* init_task */ -- .data.init_task : AT(ADDR(.data.init_task) - LOAD_OFFSET) { -- *(.data.init_task) -- } -+ .text.startup : AT(ADDR(.text.startup) - LOAD_OFFSET) { -+ __LOAD_PHYSICAL_ADDR = . - LOAD_OFFSET; -+ phys_startup_32 = startup_32 - LOAD_OFFSET + __KERNEL_TEXT_OFFSET; -+ *(.text.startup) -+ } :initdata - - /* might get freed after init */ - . = ALIGN(PAGE_SIZE); -@@ -114,14 +70,8 @@ SECTIONS - . = ALIGN(PAGE_SIZE); - - /* will be freed after init */ -- . = ALIGN(PAGE_SIZE); /* Init code and data */ -- .init.text : AT(ADDR(.init.text) - LOAD_OFFSET) { -- __init_begin = .; -- _sinittext = .; -- INIT_TEXT -- _einittext = .; -- } - .init.data : AT(ADDR(.init.data) - LOAD_OFFSET) { -+ __init_begin = .; - INIT_DATA - } - . = ALIGN(16); -@@ -161,11 +111,6 @@ SECTIONS - *(.parainstructions) - __parainstructions_end = .; - } -- /* .exit.text is discard at runtime, not link time, to deal with references -- from .altinstructions and .eh_frame */ -- .exit.text : AT(ADDR(.exit.text) - LOAD_OFFSET) { -- EXIT_TEXT -- } - .exit.data : AT(ADDR(.exit.data) - LOAD_OFFSET) { - EXIT_DATA - } -@@ -178,18 +123,138 @@ SECTIONS - } - #endif - . = ALIGN(PAGE_SIZE); -- .data.percpu : AT(ADDR(.data.percpu) - LOAD_OFFSET) { -- __per_cpu_start = .; -- *(.data.percpu.page_aligned) -+ per_cpu_start = .; -+ .data.percpu (0) : AT(ADDR(.data.percpu) - LOAD_OFFSET + per_cpu_start) { -+ __per_cpu_start = . + per_cpu_start; -+ LONG(0) - *(.data.percpu) - *(.data.percpu.shared_aligned) -- __per_cpu_end = .; -- } -+ . = ALIGN(PAGE_SIZE); -+ *(.data.percpu.page_aligned) -+ __per_cpu_end = . + per_cpu_start; -+ } :percpu -+ . += per_cpu_start; - . = ALIGN(PAGE_SIZE); - /* freed after init ends here */ - -+ . = ALIGN(PAGE_SIZE); /* Init code and data */ -+ .init.text (. - __KERNEL_TEXT_OFFSET) : AT(ADDR(.init.text) - LOAD_OFFSET + __KERNEL_TEXT_OFFSET) { -+ _sinittext = .; -+ INIT_TEXT -+ _einittext = .; -+ } :inittext -+ -+ /* .exit.text is discard at runtime, not link time, to deal with references -+ from .altinstructions and .eh_frame */ -+ .exit.text : AT(ADDR(.exit.text) - LOAD_OFFSET + __KERNEL_TEXT_OFFSET) { -+ EXIT_TEXT -+ } -+ -+ .filler : AT(ADDR(.filler) - LOAD_OFFSET + __KERNEL_TEXT_OFFSET) { -+ BYTE(0) -+ . = ALIGN(2*PMD_SIZE) - 1; -+ } -+ -+ /* freed after init ends here */ -+ -+ .text.head : AT(ADDR(.text.head) - LOAD_OFFSET + __KERNEL_TEXT_OFFSET) { -+ __init_end = . + __KERNEL_TEXT_OFFSET; -+ KERNEL_TEXT_OFFSET = . + __KERNEL_TEXT_OFFSET; -+ _text = .; /* Text and read-only data */ -+ *(.text.head) -+ } :text = 0x9090 -+ -+ /* read-only */ -+ .text : AT(ADDR(.text) - LOAD_OFFSET + __KERNEL_TEXT_OFFSET) { -+ . = ALIGN(PAGE_SIZE); /* not really needed, already page aligned */ -+ *(.text.page_aligned) -+ TEXT_TEXT -+ SCHED_TEXT -+ LOCK_TEXT -+ KPROBES_TEXT -+ *(.fixup) -+ *(.gnu.warning) -+ _etext = .; /* End of text section */ -+ } :text = 0x9090 -+ -+ . += __KERNEL_TEXT_OFFSET; -+ -+ . = ALIGN(4096); -+ NOTES :rodata :note -+ -+ . = ALIGN(16); /* Exception table */ -+ __ex_table : AT(ADDR(__ex_table) - LOAD_OFFSET) { -+ __start___ex_table = .; -+ *(__ex_table) -+ __stop___ex_table = .; -+ } :rodata -+ -+ RO_DATA(PAGE_SIZE) -+ -+ . = ALIGN(PAGE_SIZE); -+ .rodata.page_aligned : AT(ADDR(.rodata.page_aligned) - LOAD_OFFSET) { -+ *(.idt) -+ . = ALIGN(PAGE_SIZE); -+ *(.empty_zero_page) -+ *(.swapper_pg_pmd) -+ *(.swapper_pg_dir) -+ -+#if defined(CONFIG_PAX_KERNEXEC) && !defined(CONFIG_MODULES) -+ . = ALIGN(PMD_SIZE); -+#endif -+ -+ } -+ -+#if defined(CONFIG_PAX_KERNEXEC) && defined(CONFIG_MODULES) -+ . = ALIGN(PAGE_SIZE); -+ .module.text : AT(ADDR(.module.text) - LOAD_OFFSET) { -+ MODULES_VADDR = .; -+ BYTE(0) -+ . += (6 * 1024 * 1024); -+ . = ALIGN(PMD_SIZE); -+ MODULES_END = . - 1; -+ } -+#endif -+ -+ /* writeable */ -+ . = ALIGN(PAGE_SIZE); -+ .data : AT(ADDR(.data) - LOAD_OFFSET) { /* Data */ -+ _data = .; -+ DATA_DATA -+ CONSTRUCTORS -+ } :data -+ -+ . = ALIGN(PAGE_SIZE); -+ .data_nosave : AT(ADDR(.data_nosave) - LOAD_OFFSET) { -+ __nosave_begin = .; -+ *(.data.nosave) -+ . = ALIGN(PAGE_SIZE); -+ __nosave_end = .; -+ } -+ -+ . = ALIGN(PAGE_SIZE); -+ .data.page_aligned : AT(ADDR(.data.page_aligned) - LOAD_OFFSET) { -+ *(.data.page_aligned) -+ } -+ -+ . = ALIGN(32); -+ .data.cacheline_aligned : AT(ADDR(.data.cacheline_aligned) - LOAD_OFFSET) { -+ *(.data.cacheline_aligned) -+ } -+ -+ /* rarely changed data like cpu maps */ -+ . = ALIGN(32); -+ .data.read_mostly : AT(ADDR(.data.read_mostly) - LOAD_OFFSET) { -+ *(.data.read_mostly) -+ _edata = .; /* End of data section */ -+ } -+ -+ . = ALIGN(THREAD_SIZE); /* init_task */ -+ .data.init_task : AT(ADDR(.data.init_task) - LOAD_OFFSET) { -+ *(.data.init_task) -+ } -+ - .bss : AT(ADDR(.bss) - LOAD_OFFSET) { -- __init_end = .; - __bss_start = .; /* BSS */ - *(.bss.page_aligned) - *(.bss) -diff -urNp linux-2.6.28.8/arch/x86/kernel/vmlinux_64.lds.S linux-2.6.28.8/arch/x86/kernel/vmlinux_64.lds.S ---- linux-2.6.28.8/arch/x86/kernel/vmlinux_64.lds.S 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/x86/kernel/vmlinux_64.lds.S 2009-02-21 09:37:48.000000000 -0500 -@@ -16,7 +16,7 @@ jiffies_64 = jiffies; - _proxy_pda = 1; - PHDRS { - text PT_LOAD FLAGS(5); /* R_E */ -- data PT_LOAD FLAGS(7); /* RWE */ -+ data PT_LOAD FLAGS(6); /* RW_ */ - user PT_LOAD FLAGS(7); /* RWE */ - data.init PT_LOAD FLAGS(7); /* RWE */ - note PT_NOTE FLAGS(0); /* ___ */ -@@ -49,17 +49,20 @@ SECTIONS - __stop___ex_table = .; - } :text = 0x9090 - -- RODATA -+ RO_DATA(PAGE_SIZE) - -+#ifdef CONFIG_PAX_KERNEXEC -+ . = ALIGN(2*1024*1024); /* Align data segment to PMD size boundary */ -+#else - . = ALIGN(PAGE_SIZE); /* Align data segment to page size boundary */ -+#endif - /* Data */ -+ _data = .; - .data : AT(ADDR(.data) - LOAD_OFFSET) { - DATA_DATA - CONSTRUCTORS - } :data - -- _edata = .; /* End of data section */ -- - . = ALIGN(PAGE_SIZE); - . = ALIGN(CONFIG_X86_L1_CACHE_BYTES); - .data.cacheline_aligned : AT(ADDR(.data.cacheline_aligned) - LOAD_OFFSET) { -@@ -70,9 +73,27 @@ SECTIONS - *(.data.read_mostly) - } - -+ . = ALIGN(THREAD_SIZE); /* init_task */ -+ .data.init_task : AT(ADDR(.data.init_task) - LOAD_OFFSET) { -+ *(.data.init_task) -+ } -+ -+ . = ALIGN(PAGE_SIZE); -+ .data.page_aligned : AT(ADDR(.data.page_aligned) - LOAD_OFFSET) { -+ *(.data.page_aligned) -+ } -+ -+ . = ALIGN(PAGE_SIZE); -+ __nosave_begin = .; -+ .data_nosave : AT(ADDR(.data_nosave) - LOAD_OFFSET) { *(.data.nosave) } -+ . = ALIGN(PAGE_SIZE); -+ __nosave_end = .; -+ -+ _edata = .; /* End of data section */ -+ - #define VSYSCALL_ADDR (-10*1024*1024) --#define VSYSCALL_PHYS_ADDR ((LOADADDR(.data.read_mostly) + SIZEOF(.data.read_mostly) + 4095) & ~(4095)) --#define VSYSCALL_VIRT_ADDR ((ADDR(.data.read_mostly) + SIZEOF(.data.read_mostly) + 4095) & ~(4095)) -+#define VSYSCALL_PHYS_ADDR ((LOADADDR(.data_nosave) + SIZEOF(.data_nosave) + 4095) & ~(4095)) -+#define VSYSCALL_VIRT_ADDR ((ADDR(.data_nosave) + SIZEOF(.data_nosave) + 4095) & ~(4095)) - - #define VLOAD_OFFSET (VSYSCALL_ADDR - VSYSCALL_PHYS_ADDR) - #define VLOAD(x) (ADDR(x) - VLOAD_OFFSET) -@@ -120,23 +141,13 @@ SECTIONS - #undef VVIRT_OFFSET - #undef VVIRT - -- . = ALIGN(THREAD_SIZE); /* init_task */ -- .data.init_task : AT(ADDR(.data.init_task) - LOAD_OFFSET) { -- *(.data.init_task) -- }:data.init -- -- . = ALIGN(PAGE_SIZE); -- .data.page_aligned : AT(ADDR(.data.page_aligned) - LOAD_OFFSET) { -- *(.data.page_aligned) -- } -- - /* might get freed after init */ - . = ALIGN(PAGE_SIZE); - __smp_alt_begin = .; - __smp_locks = .; - .smp_locks : AT(ADDR(.smp_locks) - LOAD_OFFSET) { - *(.smp_locks) -- } -+ } :data.init - __smp_locks_end = .; - . = ALIGN(PAGE_SIZE); - __smp_alt_end = .; -@@ -212,16 +223,11 @@ SECTIONS - . = ALIGN(PAGE_SIZE); - __init_end = .; - -- . = ALIGN(PAGE_SIZE); -- __nosave_begin = .; -- .data_nosave : AT(ADDR(.data_nosave) - LOAD_OFFSET) { *(.data.nosave) } -- . = ALIGN(PAGE_SIZE); -- __nosave_end = .; -- - __bss_start = .; /* BSS */ - .bss : AT(ADDR(.bss) - LOAD_OFFSET) { - *(.bss.page_aligned) - *(.bss) -+ . = ALIGN(2*1024*1024); - } - __bss_stop = .; - -diff -urNp linux-2.6.28.8/arch/x86/kernel/vsyscall_64.c linux-2.6.28.8/arch/x86/kernel/vsyscall_64.c ---- linux-2.6.28.8/arch/x86/kernel/vsyscall_64.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/x86/kernel/vsyscall_64.c 2009-02-21 09:37:48.000000000 -0500 -@@ -236,13 +236,13 @@ static ctl_table kernel_table2[] = { - .data = &vsyscall_gtod_data.sysctl_enabled, .maxlen = sizeof(int), - .mode = 0644, - .proc_handler = vsyscall_sysctl_change }, -- {} -+ { 0, NULL, NULL, 0, 0, NULL, NULL, NULL, NULL, NULL, NULL } - }; - - static ctl_table kernel_root_table2[] = { - { .ctl_name = CTL_KERN, .procname = "kernel", .mode = 0555, - .child = kernel_table2 }, -- {} -+ { 0, NULL, NULL, 0, 0, NULL, NULL, NULL, NULL, NULL, NULL } - }; - #endif - -diff -urNp linux-2.6.28.8/arch/x86/kvm/svm.c linux-2.6.28.8/arch/x86/kvm/svm.c ---- linux-2.6.28.8/arch/x86/kvm/svm.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/x86/kvm/svm.c 2009-02-21 09:37:48.000000000 -0500 -@@ -1505,7 +1505,19 @@ static void reload_tss(struct kvm_vcpu * - int cpu = raw_smp_processor_id(); - - struct svm_cpu_data *svm_data = per_cpu(svm_data, cpu); -+ -+#ifdef CONFIG_PAX_KERNEXEC -+ unsigned long cr0; -+ -+ pax_open_kernel(cr0); -+#endif -+ - svm_data->tss_desc->type = 9; /* available 32/64-bit TSS */ -+ -+#ifdef CONFIG_PAX_KERNEXEC -+ pax_close_kernel(cr0); -+#endif -+ - load_TR_desc(); - } - -@@ -1912,7 +1924,7 @@ static int get_npt_level(void) - #endif - } - --static struct kvm_x86_ops svm_x86_ops = { -+static const struct kvm_x86_ops svm_x86_ops = { - .cpu_has_kvm_support = has_svm, - .disabled_by_bios = is_disabled, - .hardware_setup = svm_hardware_setup, -diff -urNp linux-2.6.28.8/arch/x86/kvm/vmx.c linux-2.6.28.8/arch/x86/kvm/vmx.c ---- linux-2.6.28.8/arch/x86/kvm/vmx.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/x86/kvm/vmx.c 2009-02-21 09:37:48.000000000 -0500 -@@ -122,7 +122,7 @@ static struct vmcs_config { - u32 vmentry_ctrl; - } vmcs_config; - --struct vmx_capability { -+static struct vmx_capability { - u32 ept; - u32 vpid; - } vmx_capability; -@@ -491,9 +491,23 @@ static void reload_tss(void) - struct descriptor_table gdt; - struct desc_struct *descs; - -+#ifdef CONFIG_PAX_KERNEXEC -+ unsigned long cr0; -+#endif -+ - kvm_get_gdt(&gdt); - descs = (void *)gdt.base; -+ -+#ifdef CONFIG_PAX_KERNEXEC -+ pax_open_kernel(cr0); -+#endif -+ - descs[GDT_ENTRY_TSS].type = 9; /* available TSS */ -+ -+#ifdef CONFIG_PAX_KERNEXEC -+ pax_close_kernel(cr0); -+#endif -+ - load_TR_desc(); - } - -@@ -2164,7 +2178,7 @@ static int vmx_vcpu_setup(struct vcpu_vm - vmcs_writel(HOST_IDTR_BASE, dt.base); /* 22.2.4 */ - - asm("mov $.Lkvm_vmx_return, %0" : "=r"(kvm_vmx_return)); -- vmcs_writel(HOST_RIP, kvm_vmx_return); /* 22.2.5 */ -+ vmcs_writel(HOST_RIP, ktla_ktva(kvm_vmx_return)); /* 22.2.5 */ - vmcs_write32(VM_EXIT_MSR_STORE_COUNT, 0); - vmcs_write32(VM_EXIT_MSR_LOAD_COUNT, 0); - vmcs_write32(VM_ENTRY_MSR_LOAD_COUNT, 0); -@@ -3267,6 +3281,12 @@ static void vmx_vcpu_run(struct kvm_vcpu - "jmp .Lkvm_vmx_return \n\t" - ".Llaunched: " __ex(ASM_VMX_VMRESUME) "\n\t" - ".Lkvm_vmx_return: " -+ -+#if defined(CONFIG_X86_32) && defined(CONFIG_PAX_KERNEXEC) -+ "ljmp %[cs],$.Lkvm_vmx_return2\n\t" -+ ".Lkvm_vmx_return2: " -+#endif -+ - /* Save guest registers, load host registers, keep flags */ - "xchg %0, (%%"R"sp) \n\t" - "mov %%"R"ax, %c[rax](%0) \n\t" -@@ -3313,6 +3333,11 @@ static void vmx_vcpu_run(struct kvm_vcpu - [r15]"i"(offsetof(struct vcpu_vmx, vcpu.arch.regs[VCPU_REGS_R15])), - #endif - [cr2]"i"(offsetof(struct vcpu_vmx, vcpu.arch.cr2)) -+ -+#if defined(CONFIG_X86_32) && defined(CONFIG_PAX_KERNEXEC) -+ ,[cs]"i"(__KERNEL_CS) -+#endif -+ - : "cc", "memory" - , R"bx", R"di", R"si" - #ifdef CONFIG_X86_64 -@@ -3331,7 +3356,7 @@ static void vmx_vcpu_run(struct kvm_vcpu - (vmcs_read32(GUEST_INTERRUPTIBILITY_INFO) & - (GUEST_INTR_STATE_STI | GUEST_INTR_STATE_MOV_SS)) == 0; - -- asm("mov %0, %%ds; mov %0, %%es" : : "r"(__USER_DS)); -+ asm("mov %0, %%ds; mov %0, %%es" : : "r"(__KERNEL_DS)); - vmx->launched = 1; - - intr_info = vmcs_read32(VM_EXIT_INTR_INFO); -@@ -3455,7 +3480,7 @@ static int get_ept_level(void) - return VMX_EPT_DEFAULT_GAW + 1; - } - --static struct kvm_x86_ops vmx_x86_ops = { -+static const struct kvm_x86_ops vmx_x86_ops = { - .cpu_has_kvm_support = cpu_has_kvm_support, - .disabled_by_bios = vmx_disabled_by_bios, - .hardware_setup = hardware_setup, -diff -urNp linux-2.6.28.8/arch/x86/kvm/x86.c linux-2.6.28.8/arch/x86/kvm/x86.c ---- linux-2.6.28.8/arch/x86/kvm/x86.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/x86/kvm/x86.c 2009-02-21 09:37:48.000000000 -0500 -@@ -68,41 +68,41 @@ static u64 __read_mostly efer_reserved_b - static int kvm_dev_ioctl_get_supported_cpuid(struct kvm_cpuid2 *cpuid, - struct kvm_cpuid_entry2 __user *entries); - --struct kvm_x86_ops *kvm_x86_ops; -+const struct kvm_x86_ops *kvm_x86_ops; - EXPORT_SYMBOL_GPL(kvm_x86_ops); - - struct kvm_stats_debugfs_item debugfs_entries[] = { -- { "pf_fixed", VCPU_STAT(pf_fixed) }, -- { "pf_guest", VCPU_STAT(pf_guest) }, -- { "tlb_flush", VCPU_STAT(tlb_flush) }, -- { "invlpg", VCPU_STAT(invlpg) }, -- { "exits", VCPU_STAT(exits) }, -- { "io_exits", VCPU_STAT(io_exits) }, -- { "mmio_exits", VCPU_STAT(mmio_exits) }, -- { "signal_exits", VCPU_STAT(signal_exits) }, -- { "irq_window", VCPU_STAT(irq_window_exits) }, -- { "nmi_window", VCPU_STAT(nmi_window_exits) }, -- { "halt_exits", VCPU_STAT(halt_exits) }, -- { "halt_wakeup", VCPU_STAT(halt_wakeup) }, -- { "hypercalls", VCPU_STAT(hypercalls) }, -- { "request_irq", VCPU_STAT(request_irq_exits) }, -- { "irq_exits", VCPU_STAT(irq_exits) }, -- { "host_state_reload", VCPU_STAT(host_state_reload) }, -- { "efer_reload", VCPU_STAT(efer_reload) }, -- { "fpu_reload", VCPU_STAT(fpu_reload) }, -- { "insn_emulation", VCPU_STAT(insn_emulation) }, -- { "insn_emulation_fail", VCPU_STAT(insn_emulation_fail) }, -- { "irq_injections", VCPU_STAT(irq_injections) }, -- { "mmu_shadow_zapped", VM_STAT(mmu_shadow_zapped) }, -- { "mmu_pte_write", VM_STAT(mmu_pte_write) }, -- { "mmu_pte_updated", VM_STAT(mmu_pte_updated) }, -- { "mmu_pde_zapped", VM_STAT(mmu_pde_zapped) }, -- { "mmu_flooded", VM_STAT(mmu_flooded) }, -- { "mmu_recycled", VM_STAT(mmu_recycled) }, -- { "mmu_cache_miss", VM_STAT(mmu_cache_miss) }, -- { "mmu_unsync", VM_STAT(mmu_unsync) }, -- { "remote_tlb_flush", VM_STAT(remote_tlb_flush) }, -- { "largepages", VM_STAT(lpages) }, -+ { "pf_fixed", VCPU_STAT(pf_fixed), NULL }, -+ { "pf_guest", VCPU_STAT(pf_guest), NULL }, -+ { "tlb_flush", VCPU_STAT(tlb_flush), NULL }, -+ { "invlpg", VCPU_STAT(invlpg), NULL }, -+ { "exits", VCPU_STAT(exits), NULL }, -+ { "io_exits", VCPU_STAT(io_exits), NULL }, -+ { "mmio_exits", VCPU_STAT(mmio_exits), NULL }, -+ { "signal_exits", VCPU_STAT(signal_exits), NULL }, -+ { "irq_window", VCPU_STAT(irq_window_exits), NULL }, -+ { "nmi_window", VCPU_STAT(nmi_window_exits), NULL }, -+ { "halt_exits", VCPU_STAT(halt_exits), NULL }, -+ { "halt_wakeup", VCPU_STAT(halt_wakeup), NULL }, -+ { "hypercalls", VCPU_STAT(hypercalls), NULL }, -+ { "request_irq", VCPU_STAT(request_irq_exits), NULL }, -+ { "irq_exits", VCPU_STAT(irq_exits), NULL }, -+ { "host_state_reload", VCPU_STAT(host_state_reload), NULL }, -+ { "efer_reload", VCPU_STAT(efer_reload), NULL }, -+ { "fpu_reload", VCPU_STAT(fpu_reload), NULL }, -+ { "insn_emulation", VCPU_STAT(insn_emulation), NULL }, -+ { "insn_emulation_fail", VCPU_STAT(insn_emulation_fail), NULL }, -+ { "irq_injections", VCPU_STAT(irq_injections), NULL }, -+ { "mmu_shadow_zapped", VM_STAT(mmu_shadow_zapped), NULL }, -+ { "mmu_pte_write", VM_STAT(mmu_pte_write), NULL }, -+ { "mmu_pte_updated", VM_STAT(mmu_pte_updated), NULL }, -+ { "mmu_pde_zapped", VM_STAT(mmu_pde_zapped), NULL }, -+ { "mmu_flooded", VM_STAT(mmu_flooded), NULL }, -+ { "mmu_recycled", VM_STAT(mmu_recycled), NULL }, -+ { "mmu_cache_miss", VM_STAT(mmu_cache_miss), NULL }, -+ { "mmu_unsync", VM_STAT(mmu_unsync), NULL }, -+ { "remote_tlb_flush", VM_STAT(remote_tlb_flush), NULL }, -+ { "largepages", VM_STAT(lpages), NULL }, - { NULL } - }; - -@@ -1304,7 +1304,7 @@ static int kvm_vcpu_ioctl_set_lapic(stru - static int kvm_vcpu_ioctl_interrupt(struct kvm_vcpu *vcpu, - struct kvm_interrupt *irq) - { -- if (irq->irq < 0 || irq->irq >= 256) -+ if (irq->irq >= 256) - return -EINVAL; - if (irqchip_in_kernel(vcpu->kvm)) - return -ENXIO; -@@ -2509,10 +2509,10 @@ int kvm_emulate_pio_string(struct kvm_vc - } - EXPORT_SYMBOL_GPL(kvm_emulate_pio_string); - --int kvm_arch_init(void *opaque) -+int kvm_arch_init(const void *opaque) - { - int r; -- struct kvm_x86_ops *ops = (struct kvm_x86_ops *)opaque; -+ const struct kvm_x86_ops *ops = (const struct kvm_x86_ops *)opaque; - - if (kvm_x86_ops) { - printk(KERN_ERR "kvm: already loaded the other module\n"); -diff -urNp linux-2.6.28.8/arch/x86/lib/checksum_32.S linux-2.6.28.8/arch/x86/lib/checksum_32.S ---- linux-2.6.28.8/arch/x86/lib/checksum_32.S 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/x86/lib/checksum_32.S 2009-02-21 09:37:48.000000000 -0500 -@@ -28,7 +28,8 @@ - #include <linux/linkage.h> - #include <asm/dwarf2.h> - #include <asm/errno.h> -- -+#include <asm/segment.h> -+ - /* - * computes a partial checksum, e.g. for TCP/UDP fragments - */ -@@ -304,9 +305,22 @@ unsigned int csum_partial_copy_generic ( - - #define ARGBASE 16 - #define FP 12 -- --ENTRY(csum_partial_copy_generic) -+ -+ENTRY(csum_partial_copy_generic_to_user) - CFI_STARTPROC -+ pushl $(__USER_DS) -+ CFI_ADJUST_CFA_OFFSET 4 -+ popl %es -+ CFI_ADJUST_CFA_OFFSET -4 -+ jmp csum_partial_copy_generic -+ -+ENTRY(csum_partial_copy_generic_from_user) -+ pushl $(__USER_DS) -+ CFI_ADJUST_CFA_OFFSET 4 -+ popl %ds -+ CFI_ADJUST_CFA_OFFSET -4 -+ -+ENTRY(csum_partial_copy_generic) - subl $4,%esp - CFI_ADJUST_CFA_OFFSET 4 - pushl %edi -@@ -331,7 +345,7 @@ ENTRY(csum_partial_copy_generic) - jmp 4f - SRC(1: movw (%esi), %bx ) - addl $2, %esi --DST( movw %bx, (%edi) ) -+DST( movw %bx, %es:(%edi) ) - addl $2, %edi - addw %bx, %ax - adcl $0, %eax -@@ -343,30 +357,30 @@ DST( movw %bx, (%edi) ) - SRC(1: movl (%esi), %ebx ) - SRC( movl 4(%esi), %edx ) - adcl %ebx, %eax --DST( movl %ebx, (%edi) ) -+DST( movl %ebx, %es:(%edi) ) - adcl %edx, %eax --DST( movl %edx, 4(%edi) ) -+DST( movl %edx, %es:4(%edi) ) - - SRC( movl 8(%esi), %ebx ) - SRC( movl 12(%esi), %edx ) - adcl %ebx, %eax --DST( movl %ebx, 8(%edi) ) -+DST( movl %ebx, %es:8(%edi) ) - adcl %edx, %eax --DST( movl %edx, 12(%edi) ) -+DST( movl %edx, %es:12(%edi) ) - - SRC( movl 16(%esi), %ebx ) - SRC( movl 20(%esi), %edx ) - adcl %ebx, %eax --DST( movl %ebx, 16(%edi) ) -+DST( movl %ebx, %es:16(%edi) ) - adcl %edx, %eax --DST( movl %edx, 20(%edi) ) -+DST( movl %edx, %es:20(%edi) ) - - SRC( movl 24(%esi), %ebx ) - SRC( movl 28(%esi), %edx ) - adcl %ebx, %eax --DST( movl %ebx, 24(%edi) ) -+DST( movl %ebx, %es:24(%edi) ) - adcl %edx, %eax --DST( movl %edx, 28(%edi) ) -+DST( movl %edx, %es:28(%edi) ) - - lea 32(%esi), %esi - lea 32(%edi), %edi -@@ -380,7 +394,7 @@ DST( movl %edx, 28(%edi) ) - shrl $2, %edx # This clears CF - SRC(3: movl (%esi), %ebx ) - adcl %ebx, %eax --DST( movl %ebx, (%edi) ) -+DST( movl %ebx, %es:(%edi) ) - lea 4(%esi), %esi - lea 4(%edi), %edi - dec %edx -@@ -392,12 +406,12 @@ DST( movl %ebx, (%edi) ) - jb 5f - SRC( movw (%esi), %cx ) - leal 2(%esi), %esi --DST( movw %cx, (%edi) ) -+DST( movw %cx, %es:(%edi) ) - leal 2(%edi), %edi - je 6f - shll $16,%ecx - SRC(5: movb (%esi), %cl ) --DST( movb %cl, (%edi) ) -+DST( movb %cl, %es:(%edi) ) - 6: addl %ecx, %eax - adcl $0, %eax - 7: -@@ -408,7 +422,7 @@ DST( movb %cl, (%edi) ) - - 6001: - movl ARGBASE+20(%esp), %ebx # src_err_ptr -- movl $-EFAULT, (%ebx) -+ movl $-EFAULT, %ss:(%ebx) - - # zero the complete destination - computing the rest - # is too much work -@@ -421,11 +435,19 @@ DST( movb %cl, (%edi) ) - - 6002: - movl ARGBASE+24(%esp), %ebx # dst_err_ptr -- movl $-EFAULT,(%ebx) -+ movl $-EFAULT,%ss:(%ebx) - jmp 5000b - - .previous - -+ pushl %ss -+ CFI_ADJUST_CFA_OFFSET 4 -+ popl %ds -+ CFI_ADJUST_CFA_OFFSET -4 -+ pushl %ss -+ CFI_ADJUST_CFA_OFFSET 4 -+ popl %es -+ CFI_ADJUST_CFA_OFFSET -4 - popl %ebx - CFI_ADJUST_CFA_OFFSET -4 - CFI_RESTORE ebx -@@ -439,26 +461,41 @@ DST( movb %cl, (%edi) ) - CFI_ADJUST_CFA_OFFSET -4 - ret - CFI_ENDPROC --ENDPROC(csum_partial_copy_generic) -+ENDPROC(csum_partial_copy_generic_to_user) - - #else - - /* Version for PentiumII/PPro */ - - #define ROUND1(x) \ -+ nop; nop; nop; \ - SRC(movl x(%esi), %ebx ) ; \ - addl %ebx, %eax ; \ -- DST(movl %ebx, x(%edi) ) ; -+ DST(movl %ebx, %es:x(%edi)) ; - - #define ROUND(x) \ -+ nop; nop; nop; \ - SRC(movl x(%esi), %ebx ) ; \ - adcl %ebx, %eax ; \ -- DST(movl %ebx, x(%edi) ) ; -+ DST(movl %ebx, %es:x(%edi)) ; - - #define ARGBASE 12 -- --ENTRY(csum_partial_copy_generic) -+ -+ENTRY(csum_partial_copy_generic_to_user) - CFI_STARTPROC -+ pushl $(__USER_DS) -+ CFI_ADJUST_CFA_OFFSET 4 -+ popl %es -+ CFI_ADJUST_CFA_OFFSET -4 -+ jmp csum_partial_copy_generic -+ -+ENTRY(csum_partial_copy_generic_from_user) -+ pushl $(__USER_DS) -+ CFI_ADJUST_CFA_OFFSET 4 -+ popl %ds -+ CFI_ADJUST_CFA_OFFSET -4 -+ -+ENTRY(csum_partial_copy_generic) - pushl %ebx - CFI_ADJUST_CFA_OFFSET 4 - CFI_REL_OFFSET ebx, 0 -@@ -482,7 +519,7 @@ ENTRY(csum_partial_copy_generic) - subl %ebx, %edi - lea -1(%esi),%edx - andl $-32,%edx -- lea 3f(%ebx,%ebx), %ebx -+ lea 3f(%ebx,%ebx,2), %ebx - testl %esi, %esi - jmp *%ebx - 1: addl $64,%esi -@@ -503,19 +540,19 @@ ENTRY(csum_partial_copy_generic) - jb 5f - SRC( movw (%esi), %dx ) - leal 2(%esi), %esi --DST( movw %dx, (%edi) ) -+DST( movw %dx, %es:(%edi) ) - leal 2(%edi), %edi - je 6f - shll $16,%edx - 5: - SRC( movb (%esi), %dl ) --DST( movb %dl, (%edi) ) -+DST( movb %dl, %es:(%edi) ) - 6: addl %edx, %eax - adcl $0, %eax - 7: - .section .fixup, "ax" - 6001: movl ARGBASE+20(%esp), %ebx # src_err_ptr -- movl $-EFAULT, (%ebx) -+ movl $-EFAULT, %ss:(%ebx) - # zero the complete destination (computing the rest is too much work) - movl ARGBASE+8(%esp),%edi # dst - movl ARGBASE+12(%esp),%ecx # len -@@ -523,10 +560,18 @@ DST( movb %dl, (%edi) ) - rep; stosb - jmp 7b - 6002: movl ARGBASE+24(%esp), %ebx # dst_err_ptr -- movl $-EFAULT, (%ebx) -+ movl $-EFAULT, %ss:(%ebx) - jmp 7b - .previous - -+ pushl %ss -+ CFI_ADJUST_CFA_OFFSET 4 -+ popl %ds -+ CFI_ADJUST_CFA_OFFSET -4 -+ pushl %ss -+ CFI_ADJUST_CFA_OFFSET 4 -+ popl %es -+ CFI_ADJUST_CFA_OFFSET -4 - popl %esi - CFI_ADJUST_CFA_OFFSET -4 - CFI_RESTORE esi -@@ -538,7 +583,7 @@ DST( movb %dl, (%edi) ) - CFI_RESTORE ebx - ret - CFI_ENDPROC --ENDPROC(csum_partial_copy_generic) -+ENDPROC(csum_partial_copy_generic_to_user) - - #undef ROUND - #undef ROUND1 -diff -urNp linux-2.6.28.8/arch/x86/lib/clear_page_64.S linux-2.6.28.8/arch/x86/lib/clear_page_64.S ---- linux-2.6.28.8/arch/x86/lib/clear_page_64.S 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/x86/lib/clear_page_64.S 2009-02-21 09:37:48.000000000 -0500 -@@ -44,7 +44,7 @@ ENDPROC(clear_page) - - #include <asm/cpufeature.h> - -- .section .altinstr_replacement,"ax" -+ .section .altinstr_replacement,"a" - 1: .byte 0xeb /* jmp <disp8> */ - .byte (clear_page_c - clear_page) - (2f - 1b) /* offset */ - 2: -diff -urNp linux-2.6.28.8/arch/x86/lib/copy_page_64.S linux-2.6.28.8/arch/x86/lib/copy_page_64.S ---- linux-2.6.28.8/arch/x86/lib/copy_page_64.S 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/x86/lib/copy_page_64.S 2009-02-21 09:37:48.000000000 -0500 -@@ -104,7 +104,7 @@ ENDPROC(copy_page) - - #include <asm/cpufeature.h> - -- .section .altinstr_replacement,"ax" -+ .section .altinstr_replacement,"a" - 1: .byte 0xeb /* jmp <disp8> */ - .byte (copy_page_c - copy_page) - (2f - 1b) /* offset */ - 2: -diff -urNp linux-2.6.28.8/arch/x86/lib/copy_user_64.S linux-2.6.28.8/arch/x86/lib/copy_user_64.S ---- linux-2.6.28.8/arch/x86/lib/copy_user_64.S 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/x86/lib/copy_user_64.S 2009-02-21 09:37:48.000000000 -0500 -@@ -21,7 +21,7 @@ - .byte 0xe9 /* 32bit jump */ - .long \orig-1f /* by default jump to orig */ - 1: -- .section .altinstr_replacement,"ax" -+ .section .altinstr_replacement,"a" - 2: .byte 0xe9 /* near jump with 32bit immediate */ - .long \alt-1b /* offset */ /* or alternatively to alt */ - .previous -@@ -106,6 +106,8 @@ ENDPROC(__copy_from_user_inatomic) - ENTRY(bad_from_user) - bad_from_user: - CFI_STARTPROC -+ testl %edx,%edx -+ js bad_to_user - movl %edx,%ecx - xorl %eax,%eax - rep -diff -urNp linux-2.6.28.8/arch/x86/lib/getuser.S linux-2.6.28.8/arch/x86/lib/getuser.S ---- linux-2.6.28.8/arch/x86/lib/getuser.S 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/x86/lib/getuser.S 2009-02-21 09:37:48.000000000 -0500 -@@ -33,6 +33,7 @@ - #include <asm/asm-offsets.h> - #include <asm/thread_info.h> - #include <asm/asm.h> -+#include <asm/segment.h> - - .text - ENTRY(__get_user_1) -@@ -40,7 +41,19 @@ ENTRY(__get_user_1) - GET_THREAD_INFO(%_ASM_DX) - cmp TI_addr_limit(%_ASM_DX),%_ASM_AX - jae bad_get_user -+ -+#ifdef CONFIG_X86_32 -+ pushl $(__USER_DS) -+ popl %ds -+#endif -+ - 1: movzb (%_ASM_AX),%edx -+ -+#ifdef CONFIG_X86_32 -+ pushl %ss -+ pop %ds -+#endif -+ - xor %eax,%eax - ret - CFI_ENDPROC -@@ -53,7 +66,19 @@ ENTRY(__get_user_2) - GET_THREAD_INFO(%_ASM_DX) - cmp TI_addr_limit(%_ASM_DX),%_ASM_AX - jae bad_get_user -+ -+#ifdef CONFIG_X86_32 -+ pushl $(__USER_DS) -+ popl %ds -+#endif -+ - 2: movzwl -1(%_ASM_AX),%edx -+ -+#ifdef CONFIG_X86_32 -+ pushl %ss -+ pop %ds -+#endif -+ - xor %eax,%eax - ret - CFI_ENDPROC -@@ -66,7 +91,19 @@ ENTRY(__get_user_4) - GET_THREAD_INFO(%_ASM_DX) - cmp TI_addr_limit(%_ASM_DX),%_ASM_AX - jae bad_get_user -+ -+#ifdef CONFIG_X86_32 -+ pushl $(__USER_DS) -+ popl %ds -+#endif -+ - 3: mov -3(%_ASM_AX),%edx -+ -+#ifdef CONFIG_X86_32 -+ pushl %ss -+ pop %ds -+#endif -+ - xor %eax,%eax - ret - CFI_ENDPROC -@@ -89,6 +126,12 @@ ENDPROC(__get_user_8) - - bad_get_user: - CFI_STARTPROC -+ -+#ifdef CONFIG_X86_32 -+ pushl %ss -+ pop %ds -+#endif -+ - xor %edx,%edx - mov $(-EFAULT),%_ASM_AX - ret -diff -urNp linux-2.6.28.8/arch/x86/lib/memcpy_64.S linux-2.6.28.8/arch/x86/lib/memcpy_64.S ---- linux-2.6.28.8/arch/x86/lib/memcpy_64.S 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/x86/lib/memcpy_64.S 2009-02-21 09:37:48.000000000 -0500 -@@ -114,7 +114,7 @@ ENDPROC(__memcpy) - /* Some CPUs run faster using the string copy instructions. - It is also a lot simpler. Use this when possible */ - -- .section .altinstr_replacement,"ax" -+ .section .altinstr_replacement,"a" - 1: .byte 0xeb /* jmp <disp8> */ - .byte (memcpy_c - memcpy) - (2f - 1b) /* offset */ - 2: -diff -urNp linux-2.6.28.8/arch/x86/lib/memset_64.S linux-2.6.28.8/arch/x86/lib/memset_64.S ---- linux-2.6.28.8/arch/x86/lib/memset_64.S 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/x86/lib/memset_64.S 2009-02-21 09:37:48.000000000 -0500 -@@ -118,7 +118,7 @@ ENDPROC(__memset) - - #include <asm/cpufeature.h> - -- .section .altinstr_replacement,"ax" -+ .section .altinstr_replacement,"a" - 1: .byte 0xeb /* jmp <disp8> */ - .byte (memset_c - memset) - (2f - 1b) /* offset */ - 2: -diff -urNp linux-2.6.28.8/arch/x86/lib/mmx_32.c linux-2.6.28.8/arch/x86/lib/mmx_32.c ---- linux-2.6.28.8/arch/x86/lib/mmx_32.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/x86/lib/mmx_32.c 2009-02-21 09:37:48.000000000 -0500 -@@ -29,6 +29,7 @@ void *_mmx_memcpy(void *to, const void * - { - void *p; - int i; -+ unsigned long cr0; - - if (unlikely(in_interrupt())) - return __memcpy(to, from, len); -@@ -39,44 +40,72 @@ void *_mmx_memcpy(void *to, const void * - kernel_fpu_begin(); - - __asm__ __volatile__ ( -- "1: prefetch (%0)\n" /* This set is 28 bytes */ -- " prefetch 64(%0)\n" -- " prefetch 128(%0)\n" -- " prefetch 192(%0)\n" -- " prefetch 256(%0)\n" -+ "1: prefetch (%1)\n" /* This set is 28 bytes */ -+ " prefetch 64(%1)\n" -+ " prefetch 128(%1)\n" -+ " prefetch 192(%1)\n" -+ " prefetch 256(%1)\n" - "2: \n" - ".section .fixup, \"ax\"\n" -- "3: movw $0x1AEB, 1b\n" /* jmp on 26 bytes */ -+ "3: \n" -+ -+#ifdef CONFIG_PAX_KERNEXEC -+ " movl %%cr0, %0\n" -+ " movl %0, %%eax\n" -+ " andl $0xFFFEFFFF, %%eax\n" -+ " movl %%eax, %%cr0\n" -+#endif -+ -+ " movw $0x1AEB, 1b\n" /* jmp on 26 bytes */ -+ -+#ifdef CONFIG_PAX_KERNEXEC -+ " movl %0, %%cr0\n" -+#endif -+ - " jmp 2b\n" - ".previous\n" - _ASM_EXTABLE(1b, 3b) -- : : "r" (from)); -+ : "=&r" (cr0) : "r" (from) : "ax"); - - for ( ; i > 5; i--) { - __asm__ __volatile__ ( -- "1: prefetch 320(%0)\n" -- "2: movq (%0), %%mm0\n" -- " movq 8(%0), %%mm1\n" -- " movq 16(%0), %%mm2\n" -- " movq 24(%0), %%mm3\n" -- " movq %%mm0, (%1)\n" -- " movq %%mm1, 8(%1)\n" -- " movq %%mm2, 16(%1)\n" -- " movq %%mm3, 24(%1)\n" -- " movq 32(%0), %%mm0\n" -- " movq 40(%0), %%mm1\n" -- " movq 48(%0), %%mm2\n" -- " movq 56(%0), %%mm3\n" -- " movq %%mm0, 32(%1)\n" -- " movq %%mm1, 40(%1)\n" -- " movq %%mm2, 48(%1)\n" -- " movq %%mm3, 56(%1)\n" -+ "1: prefetch 320(%1)\n" -+ "2: movq (%1), %%mm0\n" -+ " movq 8(%1), %%mm1\n" -+ " movq 16(%1), %%mm2\n" -+ " movq 24(%1), %%mm3\n" -+ " movq %%mm0, (%2)\n" -+ " movq %%mm1, 8(%2)\n" -+ " movq %%mm2, 16(%2)\n" -+ " movq %%mm3, 24(%2)\n" -+ " movq 32(%1), %%mm0\n" -+ " movq 40(%1), %%mm1\n" -+ " movq 48(%1), %%mm2\n" -+ " movq 56(%1), %%mm3\n" -+ " movq %%mm0, 32(%2)\n" -+ " movq %%mm1, 40(%2)\n" -+ " movq %%mm2, 48(%2)\n" -+ " movq %%mm3, 56(%2)\n" - ".section .fixup, \"ax\"\n" -- "3: movw $0x05EB, 1b\n" /* jmp on 5 bytes */ -+ "3:\n" -+ -+#ifdef CONFIG_PAX_KERNEXEC -+ " movl %%cr0, %0\n" -+ " movl %0, %%eax\n" -+ " andl $0xFFFEFFFF, %%eax\n" -+ " movl %%eax, %%cr0\n" -+#endif -+ -+ " movw $0x05EB, 1b\n" /* jmp on 5 bytes */ -+ -+#ifdef CONFIG_PAX_KERNEXEC -+ " movl %0, %%cr0\n" -+#endif -+ - " jmp 2b\n" - ".previous\n" - _ASM_EXTABLE(1b, 3b) -- : : "r" (from), "r" (to) : "memory"); -+ : "=&r" (cr0) : "r" (from), "r" (to) : "memory", "ax"); - - from += 64; - to += 64; -@@ -158,6 +187,7 @@ static void fast_clear_page(void *page) - static void fast_copy_page(void *to, void *from) - { - int i; -+ unsigned long cr0; - - kernel_fpu_begin(); - -@@ -166,42 +196,70 @@ static void fast_copy_page(void *to, voi - * but that is for later. -AV - */ - __asm__ __volatile__( -- "1: prefetch (%0)\n" -- " prefetch 64(%0)\n" -- " prefetch 128(%0)\n" -- " prefetch 192(%0)\n" -- " prefetch 256(%0)\n" -+ "1: prefetch (%1)\n" -+ " prefetch 64(%1)\n" -+ " prefetch 128(%1)\n" -+ " prefetch 192(%1)\n" -+ " prefetch 256(%1)\n" - "2: \n" - ".section .fixup, \"ax\"\n" -- "3: movw $0x1AEB, 1b\n" /* jmp on 26 bytes */ -+ "3: \n" -+ -+#ifdef CONFIG_PAX_KERNEXEC -+ " movl %%cr0, %0\n" -+ " movl %0, %%eax\n" -+ " andl $0xFFFEFFFF, %%eax\n" -+ " movl %%eax, %%cr0\n" -+#endif -+ -+ " movw $0x1AEB, 1b\n" /* jmp on 26 bytes */ -+ -+#ifdef CONFIG_PAX_KERNEXEC -+ " movl %0, %%cr0\n" -+#endif -+ - " jmp 2b\n" - ".previous\n" -- _ASM_EXTABLE(1b, 3b) : : "r" (from)); -+ _ASM_EXTABLE(1b, 3b) : "=&r" (cr0) : "r" (from) : "ax"); - - for (i = 0; i < (4096-320)/64; i++) { - __asm__ __volatile__ ( -- "1: prefetch 320(%0)\n" -- "2: movq (%0), %%mm0\n" -- " movntq %%mm0, (%1)\n" -- " movq 8(%0), %%mm1\n" -- " movntq %%mm1, 8(%1)\n" -- " movq 16(%0), %%mm2\n" -- " movntq %%mm2, 16(%1)\n" -- " movq 24(%0), %%mm3\n" -- " movntq %%mm3, 24(%1)\n" -- " movq 32(%0), %%mm4\n" -- " movntq %%mm4, 32(%1)\n" -- " movq 40(%0), %%mm5\n" -- " movntq %%mm5, 40(%1)\n" -- " movq 48(%0), %%mm6\n" -- " movntq %%mm6, 48(%1)\n" -- " movq 56(%0), %%mm7\n" -- " movntq %%mm7, 56(%1)\n" -+ "1: prefetch 320(%1)\n" -+ "2: movq (%1), %%mm0\n" -+ " movntq %%mm0, (%2)\n" -+ " movq 8(%1), %%mm1\n" -+ " movntq %%mm1, 8(%2)\n" -+ " movq 16(%1), %%mm2\n" -+ " movntq %%mm2, 16(%2)\n" -+ " movq 24(%1), %%mm3\n" -+ " movntq %%mm3, 24(%2)\n" -+ " movq 32(%1), %%mm4\n" -+ " movntq %%mm4, 32(%2)\n" -+ " movq 40(%1), %%mm5\n" -+ " movntq %%mm5, 40(%2)\n" -+ " movq 48(%1), %%mm6\n" -+ " movntq %%mm6, 48(%2)\n" -+ " movq 56(%1), %%mm7\n" -+ " movntq %%mm7, 56(%2)\n" - ".section .fixup, \"ax\"\n" -- "3: movw $0x05EB, 1b\n" /* jmp on 5 bytes */ -+ "3:\n" -+ -+#ifdef CONFIG_PAX_KERNEXEC -+ " movl %%cr0, %0\n" -+ " movl %0, %%eax\n" -+ " andl $0xFFFEFFFF, %%eax\n" -+ " movl %%eax, %%cr0\n" -+#endif -+ -+ " movw $0x05EB, 1b\n" /* jmp on 5 bytes */ -+ -+#ifdef CONFIG_PAX_KERNEXEC -+ " movl %0, %%cr0\n" -+#endif -+ - " jmp 2b\n" - ".previous\n" -- _ASM_EXTABLE(1b, 3b) : : "r" (from), "r" (to) : "memory"); -+ _ASM_EXTABLE(1b, 3b) : "=&r" (cr0) : "r" (from), "r" (to) : "memory", "ax"); - - from += 64; - to += 64; -@@ -280,47 +338,76 @@ static void fast_clear_page(void *page) - static void fast_copy_page(void *to, void *from) - { - int i; -+ unsigned long cr0; - - kernel_fpu_begin(); - - __asm__ __volatile__ ( -- "1: prefetch (%0)\n" -- " prefetch 64(%0)\n" -- " prefetch 128(%0)\n" -- " prefetch 192(%0)\n" -- " prefetch 256(%0)\n" -+ "1: prefetch (%1)\n" -+ " prefetch 64(%1)\n" -+ " prefetch 128(%1)\n" -+ " prefetch 192(%1)\n" -+ " prefetch 256(%1)\n" - "2: \n" - ".section .fixup, \"ax\"\n" -- "3: movw $0x1AEB, 1b\n" /* jmp on 26 bytes */ -+ "3: \n" -+ -+#ifdef CONFIG_PAX_KERNEXEC -+ " movl %%cr0, %0\n" -+ " movl %0, %%eax\n" -+ " andl $0xFFFEFFFF, %%eax\n" -+ " movl %%eax, %%cr0\n" -+#endif -+ -+ " movw $0x1AEB, 1b\n" /* jmp on 26 bytes */ -+ -+#ifdef CONFIG_PAX_KERNEXEC -+ " movl %0, %%cr0\n" -+#endif -+ - " jmp 2b\n" - ".previous\n" -- _ASM_EXTABLE(1b, 3b) : : "r" (from)); -+ _ASM_EXTABLE(1b, 3b) : "=&r" (cr0) : "r" (from) : "ax"); - - for (i = 0; i < 4096/64; i++) { - __asm__ __volatile__ ( -- "1: prefetch 320(%0)\n" -- "2: movq (%0), %%mm0\n" -- " movq 8(%0), %%mm1\n" -- " movq 16(%0), %%mm2\n" -- " movq 24(%0), %%mm3\n" -- " movq %%mm0, (%1)\n" -- " movq %%mm1, 8(%1)\n" -- " movq %%mm2, 16(%1)\n" -- " movq %%mm3, 24(%1)\n" -- " movq 32(%0), %%mm0\n" -- " movq 40(%0), %%mm1\n" -- " movq 48(%0), %%mm2\n" -- " movq 56(%0), %%mm3\n" -- " movq %%mm0, 32(%1)\n" -- " movq %%mm1, 40(%1)\n" -- " movq %%mm2, 48(%1)\n" -- " movq %%mm3, 56(%1)\n" -+ "1: prefetch 320(%1)\n" -+ "2: movq (%1), %%mm0\n" -+ " movq 8(%1), %%mm1\n" -+ " movq 16(%1), %%mm2\n" -+ " movq 24(%1), %%mm3\n" -+ " movq %%mm0, (%2)\n" -+ " movq %%mm1, 8(%2)\n" -+ " movq %%mm2, 16(%2)\n" -+ " movq %%mm3, 24(%2)\n" -+ " movq 32(%1), %%mm0\n" -+ " movq 40(%1), %%mm1\n" -+ " movq 48(%1), %%mm2\n" -+ " movq 56(%1), %%mm3\n" -+ " movq %%mm0, 32(%2)\n" -+ " movq %%mm1, 40(%2)\n" -+ " movq %%mm2, 48(%2)\n" -+ " movq %%mm3, 56(%2)\n" - ".section .fixup, \"ax\"\n" -- "3: movw $0x05EB, 1b\n" /* jmp on 5 bytes */ -+ "3:\n" -+ -+#ifdef CONFIG_PAX_KERNEXEC -+ " movl %%cr0, %0\n" -+ " movl %0, %%eax\n" -+ " andl $0xFFFEFFFF, %%eax\n" -+ " movl %%eax, %%cr0\n" -+#endif -+ -+ " movw $0x05EB, 1b\n" /* jmp on 5 bytes */ -+ -+#ifdef CONFIG_PAX_KERNEXEC -+ " movl %0, %%cr0\n" -+#endif -+ - " jmp 2b\n" - ".previous\n" - _ASM_EXTABLE(1b, 3b) -- : : "r" (from), "r" (to) : "memory"); -+ : "=&r" (cr0) : "r" (from), "r" (to) : "memory", "ax"); - - from += 64; - to += 64; -diff -urNp linux-2.6.28.8/arch/x86/lib/putuser.S linux-2.6.28.8/arch/x86/lib/putuser.S ---- linux-2.6.28.8/arch/x86/lib/putuser.S 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/x86/lib/putuser.S 2009-02-21 09:37:48.000000000 -0500 -@@ -15,6 +15,7 @@ - #include <asm/thread_info.h> - #include <asm/errno.h> - #include <asm/asm.h> -+#include <asm/segment.h> - - - /* -@@ -39,7 +40,19 @@ ENTRY(__put_user_1) - ENTER - cmp TI_addr_limit(%_ASM_BX),%_ASM_CX - jae bad_put_user -+ -+#ifdef CONFIG_X86_32 -+ pushl $(__USER_DS) -+ popl %ds -+#endif -+ - 1: movb %al,(%_ASM_CX) -+ -+#ifdef CONFIG_X86_32 -+ pushl %ss -+ popl %ds -+#endif -+ - xor %eax,%eax - EXIT - ENDPROC(__put_user_1) -@@ -50,7 +63,19 @@ ENTRY(__put_user_2) - sub $1,%_ASM_BX - cmp %_ASM_BX,%_ASM_CX - jae bad_put_user -+ -+#ifdef CONFIG_X86_32 -+ pushl $(__USER_DS) -+ popl %ds -+#endif -+ - 2: movw %ax,(%_ASM_CX) -+ -+#ifdef CONFIG_X86_32 -+ pushl %ss -+ popl %ds -+#endif -+ - xor %eax,%eax - EXIT - ENDPROC(__put_user_2) -@@ -61,7 +86,19 @@ ENTRY(__put_user_4) - sub $3,%_ASM_BX - cmp %_ASM_BX,%_ASM_CX - jae bad_put_user -+ -+#ifdef CONFIG_X86_32 -+ pushl $(__USER_DS) -+ popl %ds -+#endif -+ - 3: movl %eax,(%_ASM_CX) -+ -+#ifdef CONFIG_X86_32 -+ pushl %ss -+ popl %ds -+#endif -+ - xor %eax,%eax - EXIT - ENDPROC(__put_user_4) -@@ -72,16 +109,34 @@ ENTRY(__put_user_8) - sub $7,%_ASM_BX - cmp %_ASM_BX,%_ASM_CX - jae bad_put_user -+ -+#ifdef CONFIG_X86_32 -+ pushl $(__USER_DS) -+ popl %ds -+#endif -+ - 4: mov %_ASM_AX,(%_ASM_CX) - #ifdef CONFIG_X86_32 - 5: movl %edx,4(%_ASM_CX) - #endif -+ -+#ifdef CONFIG_X86_32 -+ pushl %ss -+ popl %ds -+#endif -+ - xor %eax,%eax - EXIT - ENDPROC(__put_user_8) - - bad_put_user: - CFI_STARTPROC -+ -+#ifdef CONFIG_X86_32 -+ pushl %ss -+ popl %ds -+#endif -+ - movl $-EFAULT,%eax - EXIT - END(bad_put_user) -diff -urNp linux-2.6.28.8/arch/x86/lib/usercopy_32.c linux-2.6.28.8/arch/x86/lib/usercopy_32.c ---- linux-2.6.28.8/arch/x86/lib/usercopy_32.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/x86/lib/usercopy_32.c 2009-02-21 09:39:27.000000000 -0500 -@@ -36,31 +36,38 @@ static inline int __movsl_is_ok(unsigned - * Copy a null terminated string from userspace. - */ - --#define __do_strncpy_from_user(dst, src, count, res) \ --do { \ -- int __d0, __d1, __d2; \ -- might_sleep(); \ -- __asm__ __volatile__( \ -- " testl %1,%1\n" \ -- " jz 2f\n" \ -- "0: lodsb\n" \ -- " stosb\n" \ -- " testb %%al,%%al\n" \ -- " jz 1f\n" \ -- " decl %1\n" \ -- " jnz 0b\n" \ -- "1: subl %1,%0\n" \ -- "2:\n" \ -- ".section .fixup,\"ax\"\n" \ -- "3: movl %5,%0\n" \ -- " jmp 2b\n" \ -- ".previous\n" \ -- _ASM_EXTABLE(0b,3b) \ -- : "=&d"(res), "=&c"(count), "=&a" (__d0), "=&S" (__d1), \ -- "=&D" (__d2) \ -- : "i"(-EFAULT), "0"(count), "1"(count), "3"(src), "4"(dst) \ -- : "memory"); \ --} while (0) -+static long __do_strncpy_from_user(char *dst, const char __user *src, long count) -+{ -+ int __d0, __d1, __d2; -+ long res = -EFAULT; -+ -+ might_sleep(); -+ __asm__ __volatile__( -+ " movw %w10,%%ds\n" -+ " testl %1,%1\n" -+ " jz 2f\n" -+ "0: lodsb\n" -+ " stosb\n" -+ " testb %%al,%%al\n" -+ " jz 1f\n" -+ " decl %1\n" -+ " jnz 0b\n" -+ "1: subl %1,%0\n" -+ "2:\n" -+ " pushl %%ss\n" -+ " popl %%ds\n" -+ ".section .fixup,\"ax\"\n" -+ "3: movl %5,%0\n" -+ " jmp 2b\n" -+ ".previous\n" -+ _ASM_EXTABLE(0b,3b) -+ : "=&d"(res), "=&c"(count), "=&a" (__d0), "=&S" (__d1), -+ "=&D" (__d2) -+ : "i"(-EFAULT), "0"(count), "1"(count), "3"(src), "4"(dst), -+ "r"(__USER_DS) -+ : "memory"); -+ return res; -+} - - /** - * __strncpy_from_user: - Copy a NUL terminated string from userspace, with less checking. -@@ -85,9 +92,7 @@ do { \ - long - __strncpy_from_user(char *dst, const char __user *src, long count) - { -- long res; -- __do_strncpy_from_user(dst, src, count, res); -- return res; -+ return __do_strncpy_from_user(dst, src, count); - } - EXPORT_SYMBOL(__strncpy_from_user); - -@@ -114,7 +119,7 @@ strncpy_from_user(char *dst, const char - { - long res = -EFAULT; - if (access_ok(VERIFY_READ, src, 1)) -- __do_strncpy_from_user(dst, src, count, res); -+ res = __do_strncpy_from_user(dst, src, count); - return res; - } - EXPORT_SYMBOL(strncpy_from_user); -@@ -123,24 +128,30 @@ EXPORT_SYMBOL(strncpy_from_user); - * Zero Userspace - */ - --#define __do_clear_user(addr,size) \ --do { \ -- int __d0; \ -- might_sleep(); \ -- __asm__ __volatile__( \ -- "0: rep; stosl\n" \ -- " movl %2,%0\n" \ -- "1: rep; stosb\n" \ -- "2:\n" \ -- ".section .fixup,\"ax\"\n" \ -- "3: lea 0(%2,%0,4),%0\n" \ -- " jmp 2b\n" \ -- ".previous\n" \ -- _ASM_EXTABLE(0b,3b) \ -- _ASM_EXTABLE(1b,2b) \ -- : "=&c"(size), "=&D" (__d0) \ -- : "r"(size & 3), "0"(size / 4), "1"(addr), "a"(0)); \ --} while (0) -+static unsigned long __do_clear_user(void __user *addr, unsigned long size) -+{ -+ int __d0; -+ -+ might_sleep(); -+ __asm__ __volatile__( -+ " movw %w6,%%es\n" -+ "0: rep; stosl\n" -+ " movl %2,%0\n" -+ "1: rep; stosb\n" -+ "2:\n" -+ " pushl %%ss\n" -+ " popl %%es\n" -+ ".section .fixup,\"ax\"\n" -+ "3: lea 0(%2,%0,4),%0\n" -+ " jmp 2b\n" -+ ".previous\n" -+ _ASM_EXTABLE(0b,3b) -+ _ASM_EXTABLE(1b,2b) -+ : "=&c"(size), "=&D" (__d0) -+ : "r"(size & 3), "0"(size / 4), "1"(addr), "a"(0), -+ "r"(__USER_DS)); -+ return size; -+} - - /** - * clear_user: - Zero a block of memory in user space. -@@ -157,7 +168,7 @@ clear_user(void __user *to, unsigned lon - { - might_sleep(); - if (access_ok(VERIFY_WRITE, to, n)) -- __do_clear_user(to, n); -+ n = __do_clear_user(to, n); - return n; - } - EXPORT_SYMBOL(clear_user); -@@ -176,8 +187,7 @@ EXPORT_SYMBOL(clear_user); - unsigned long - __clear_user(void __user *to, unsigned long n) - { -- __do_clear_user(to, n); -- return n; -+ return __do_clear_user(to, n); - } - EXPORT_SYMBOL(__clear_user); - -@@ -200,14 +210,17 @@ long strnlen_user(const char __user *s, - might_sleep(); - - __asm__ __volatile__( -+ " movw %w8,%%es\n" - " testl %0, %0\n" - " jz 3f\n" -- " andl %0,%%ecx\n" -+ " movl %0,%%ecx\n" - "0: repne; scasb\n" - " setne %%al\n" - " subl %%ecx,%0\n" - " addl %0,%%eax\n" - "1:\n" -+ " pushl %%ss\n" -+ " popl %%es\n" - ".section .fixup,\"ax\"\n" - "2: xorl %%eax,%%eax\n" - " jmp 1b\n" -@@ -219,7 +232,7 @@ long strnlen_user(const char __user *s, - " .long 0b,2b\n" - ".previous" - :"=&r" (n), "=&D" (s), "=&a" (res), "=&c" (tmp) -- :"0" (n), "1" (s), "2" (0), "3" (mask) -+ :"0" (n), "1" (s), "2" (0), "3" (mask), "r" (__USER_DS) - :"cc"); - return res & mask; - } -@@ -227,10 +240,11 @@ EXPORT_SYMBOL(strnlen_user); - - #ifdef CONFIG_X86_INTEL_USERCOPY - static unsigned long --__copy_user_intel(void __user *to, const void *from, unsigned long size) -+__generic_copy_to_user_intel(void __user *to, const void *from, unsigned long size) - { - int d0, d1; - __asm__ __volatile__( -+ " movw %w6, %%es\n" - " .align 2,0x90\n" - "1: movl 32(%4), %%eax\n" - " cmpl $67, %0\n" -@@ -239,36 +253,36 @@ __copy_user_intel(void __user *to, const - " .align 2,0x90\n" - "3: movl 0(%4), %%eax\n" - "4: movl 4(%4), %%edx\n" -- "5: movl %%eax, 0(%3)\n" -- "6: movl %%edx, 4(%3)\n" -+ "5: movl %%eax, %%es:0(%3)\n" -+ "6: movl %%edx, %%es:4(%3)\n" - "7: movl 8(%4), %%eax\n" - "8: movl 12(%4),%%edx\n" -- "9: movl %%eax, 8(%3)\n" -- "10: movl %%edx, 12(%3)\n" -+ "9: movl %%eax, %%es:8(%3)\n" -+ "10: movl %%edx, %%es:12(%3)\n" - "11: movl 16(%4), %%eax\n" - "12: movl 20(%4), %%edx\n" -- "13: movl %%eax, 16(%3)\n" -- "14: movl %%edx, 20(%3)\n" -+ "13: movl %%eax, %%es:16(%3)\n" -+ "14: movl %%edx, %%es:20(%3)\n" - "15: movl 24(%4), %%eax\n" - "16: movl 28(%4), %%edx\n" -- "17: movl %%eax, 24(%3)\n" -- "18: movl %%edx, 28(%3)\n" -+ "17: movl %%eax, %%es:24(%3)\n" -+ "18: movl %%edx, %%es:28(%3)\n" - "19: movl 32(%4), %%eax\n" - "20: movl 36(%4), %%edx\n" -- "21: movl %%eax, 32(%3)\n" -- "22: movl %%edx, 36(%3)\n" -+ "21: movl %%eax, %%es:32(%3)\n" -+ "22: movl %%edx, %%es:36(%3)\n" - "23: movl 40(%4), %%eax\n" - "24: movl 44(%4), %%edx\n" -- "25: movl %%eax, 40(%3)\n" -- "26: movl %%edx, 44(%3)\n" -+ "25: movl %%eax, %%es:40(%3)\n" -+ "26: movl %%edx, %%es:44(%3)\n" - "27: movl 48(%4), %%eax\n" - "28: movl 52(%4), %%edx\n" -- "29: movl %%eax, 48(%3)\n" -- "30: movl %%edx, 52(%3)\n" -+ "29: movl %%eax, %%es:48(%3)\n" -+ "30: movl %%edx, %%es:52(%3)\n" - "31: movl 56(%4), %%eax\n" - "32: movl 60(%4), %%edx\n" -- "33: movl %%eax, 56(%3)\n" -- "34: movl %%edx, 60(%3)\n" -+ "33: movl %%eax, %%es:56(%3)\n" -+ "34: movl %%edx, %%es:60(%3)\n" - " addl $-64, %0\n" - " addl $64, %4\n" - " addl $64, %3\n" -@@ -282,6 +296,8 @@ __copy_user_intel(void __user *to, const - "36: movl %%eax, %0\n" - "37: rep; movsb\n" - "100:\n" -+ " pushl %%ss\n" -+ " popl %%es\n" - ".section .fixup,\"ax\"\n" - "101: lea 0(%%eax,%0,4),%0\n" - " jmp 100b\n" -@@ -328,7 +344,117 @@ __copy_user_intel(void __user *to, const - " .long 99b,101b\n" - ".previous" - : "=&c"(size), "=&D" (d0), "=&S" (d1) -- : "1"(to), "2"(from), "0"(size) -+ : "1"(to), "2"(from), "0"(size), "r"(__USER_DS) -+ : "eax", "edx", "memory"); -+ return size; -+} -+ -+static unsigned long -+__generic_copy_from_user_intel(void *to, const void __user *from, unsigned long size) -+{ -+ int d0, d1; -+ __asm__ __volatile__( -+ " movw %w6, %%ds\n" -+ " .align 2,0x90\n" -+ "1: movl 32(%4), %%eax\n" -+ " cmpl $67, %0\n" -+ " jbe 3f\n" -+ "2: movl 64(%4), %%eax\n" -+ " .align 2,0x90\n" -+ "3: movl 0(%4), %%eax\n" -+ "4: movl 4(%4), %%edx\n" -+ "5: movl %%eax, %%es:0(%3)\n" -+ "6: movl %%edx, %%es:4(%3)\n" -+ "7: movl 8(%4), %%eax\n" -+ "8: movl 12(%4),%%edx\n" -+ "9: movl %%eax, %%es:8(%3)\n" -+ "10: movl %%edx, %%es:12(%3)\n" -+ "11: movl 16(%4), %%eax\n" -+ "12: movl 20(%4), %%edx\n" -+ "13: movl %%eax, %%es:16(%3)\n" -+ "14: movl %%edx, %%es:20(%3)\n" -+ "15: movl 24(%4), %%eax\n" -+ "16: movl 28(%4), %%edx\n" -+ "17: movl %%eax, %%es:24(%3)\n" -+ "18: movl %%edx, %%es:28(%3)\n" -+ "19: movl 32(%4), %%eax\n" -+ "20: movl 36(%4), %%edx\n" -+ "21: movl %%eax, %%es:32(%3)\n" -+ "22: movl %%edx, %%es:36(%3)\n" -+ "23: movl 40(%4), %%eax\n" -+ "24: movl 44(%4), %%edx\n" -+ "25: movl %%eax, %%es:40(%3)\n" -+ "26: movl %%edx, %%es:44(%3)\n" -+ "27: movl 48(%4), %%eax\n" -+ "28: movl 52(%4), %%edx\n" -+ "29: movl %%eax, %%es:48(%3)\n" -+ "30: movl %%edx, %%es:52(%3)\n" -+ "31: movl 56(%4), %%eax\n" -+ "32: movl 60(%4), %%edx\n" -+ "33: movl %%eax, %%es:56(%3)\n" -+ "34: movl %%edx, %%es:60(%3)\n" -+ " addl $-64, %0\n" -+ " addl $64, %4\n" -+ " addl $64, %3\n" -+ " cmpl $63, %0\n" -+ " ja 1b\n" -+ "35: movl %0, %%eax\n" -+ " shrl $2, %0\n" -+ " andl $3, %%eax\n" -+ " cld\n" -+ "99: rep; movsl\n" -+ "36: movl %%eax, %0\n" -+ "37: rep; movsb\n" -+ "100:\n" -+ " pushl %%ss\n" -+ " popl %%ds\n" -+ ".section .fixup,\"ax\"\n" -+ "101: lea 0(%%eax,%0,4),%0\n" -+ " jmp 100b\n" -+ ".previous\n" -+ ".section __ex_table,\"a\"\n" -+ " .align 4\n" -+ " .long 1b,100b\n" -+ " .long 2b,100b\n" -+ " .long 3b,100b\n" -+ " .long 4b,100b\n" -+ " .long 5b,100b\n" -+ " .long 6b,100b\n" -+ " .long 7b,100b\n" -+ " .long 8b,100b\n" -+ " .long 9b,100b\n" -+ " .long 10b,100b\n" -+ " .long 11b,100b\n" -+ " .long 12b,100b\n" -+ " .long 13b,100b\n" -+ " .long 14b,100b\n" -+ " .long 15b,100b\n" -+ " .long 16b,100b\n" -+ " .long 17b,100b\n" -+ " .long 18b,100b\n" -+ " .long 19b,100b\n" -+ " .long 20b,100b\n" -+ " .long 21b,100b\n" -+ " .long 22b,100b\n" -+ " .long 23b,100b\n" -+ " .long 24b,100b\n" -+ " .long 25b,100b\n" -+ " .long 26b,100b\n" -+ " .long 27b,100b\n" -+ " .long 28b,100b\n" -+ " .long 29b,100b\n" -+ " .long 30b,100b\n" -+ " .long 31b,100b\n" -+ " .long 32b,100b\n" -+ " .long 33b,100b\n" -+ " .long 34b,100b\n" -+ " .long 35b,100b\n" -+ " .long 36b,100b\n" -+ " .long 37b,100b\n" -+ " .long 99b,101b\n" -+ ".previous" -+ : "=&c"(size), "=&D" (d0), "=&S" (d1) -+ : "1"(to), "2"(from), "0"(size), "r"(__USER_DS) - : "eax", "edx", "memory"); - return size; - } -@@ -338,6 +464,7 @@ __copy_user_zeroing_intel(void *to, cons - { - int d0, d1; - __asm__ __volatile__( -+ " movw %w6, %%ds\n" - " .align 2,0x90\n" - "0: movl 32(%4), %%eax\n" - " cmpl $67, %0\n" -@@ -346,36 +473,36 @@ __copy_user_zeroing_intel(void *to, cons - " .align 2,0x90\n" - "2: movl 0(%4), %%eax\n" - "21: movl 4(%4), %%edx\n" -- " movl %%eax, 0(%3)\n" -- " movl %%edx, 4(%3)\n" -+ " movl %%eax, %%es:0(%3)\n" -+ " movl %%edx, %%es:4(%3)\n" - "3: movl 8(%4), %%eax\n" - "31: movl 12(%4),%%edx\n" -- " movl %%eax, 8(%3)\n" -- " movl %%edx, 12(%3)\n" -+ " movl %%eax, %%es:8(%3)\n" -+ " movl %%edx, %%es:12(%3)\n" - "4: movl 16(%4), %%eax\n" - "41: movl 20(%4), %%edx\n" -- " movl %%eax, 16(%3)\n" -- " movl %%edx, 20(%3)\n" -+ " movl %%eax, %%es:16(%3)\n" -+ " movl %%edx, %%es:20(%3)\n" - "10: movl 24(%4), %%eax\n" - "51: movl 28(%4), %%edx\n" -- " movl %%eax, 24(%3)\n" -- " movl %%edx, 28(%3)\n" -+ " movl %%eax, %%es:24(%3)\n" -+ " movl %%edx, %%es:28(%3)\n" - "11: movl 32(%4), %%eax\n" - "61: movl 36(%4), %%edx\n" -- " movl %%eax, 32(%3)\n" -- " movl %%edx, 36(%3)\n" -+ " movl %%eax, %%es:32(%3)\n" -+ " movl %%edx, %%es:36(%3)\n" - "12: movl 40(%4), %%eax\n" - "71: movl 44(%4), %%edx\n" -- " movl %%eax, 40(%3)\n" -- " movl %%edx, 44(%3)\n" -+ " movl %%eax, %%es:40(%3)\n" -+ " movl %%edx, %%es:44(%3)\n" - "13: movl 48(%4), %%eax\n" - "81: movl 52(%4), %%edx\n" -- " movl %%eax, 48(%3)\n" -- " movl %%edx, 52(%3)\n" -+ " movl %%eax, %%es:48(%3)\n" -+ " movl %%edx, %%es:52(%3)\n" - "14: movl 56(%4), %%eax\n" - "91: movl 60(%4), %%edx\n" -- " movl %%eax, 56(%3)\n" -- " movl %%edx, 60(%3)\n" -+ " movl %%eax, %%es:56(%3)\n" -+ " movl %%edx, %%es:60(%3)\n" - " addl $-64, %0\n" - " addl $64, %4\n" - " addl $64, %3\n" -@@ -389,6 +516,8 @@ __copy_user_zeroing_intel(void *to, cons - " movl %%eax,%0\n" - "7: rep; movsb\n" - "8:\n" -+ " pushl %%ss\n" -+ " popl %%ds\n" - ".section .fixup,\"ax\"\n" - "9: lea 0(%%eax,%0,4),%0\n" - "16: pushl %0\n" -@@ -423,7 +552,7 @@ __copy_user_zeroing_intel(void *to, cons - " .long 7b,16b\n" - ".previous" - : "=&c"(size), "=&D" (d0), "=&S" (d1) -- : "1"(to), "2"(from), "0"(size) -+ : "1"(to), "2"(from), "0"(size), "r"(__USER_DS) - : "eax", "edx", "memory"); - return size; - } -@@ -439,6 +568,7 @@ static unsigned long __copy_user_zeroing - int d0, d1; - - __asm__ __volatile__( -+ " movw %w6, %%ds\n" - " .align 2,0x90\n" - "0: movl 32(%4), %%eax\n" - " cmpl $67, %0\n" -@@ -447,36 +577,36 @@ static unsigned long __copy_user_zeroing - " .align 2,0x90\n" - "2: movl 0(%4), %%eax\n" - "21: movl 4(%4), %%edx\n" -- " movnti %%eax, 0(%3)\n" -- " movnti %%edx, 4(%3)\n" -+ " movnti %%eax, %%es:0(%3)\n" -+ " movnti %%edx, %%es:4(%3)\n" - "3: movl 8(%4), %%eax\n" - "31: movl 12(%4),%%edx\n" -- " movnti %%eax, 8(%3)\n" -- " movnti %%edx, 12(%3)\n" -+ " movnti %%eax, %%es:8(%3)\n" -+ " movnti %%edx, %%es:12(%3)\n" - "4: movl 16(%4), %%eax\n" - "41: movl 20(%4), %%edx\n" -- " movnti %%eax, 16(%3)\n" -- " movnti %%edx, 20(%3)\n" -+ " movnti %%eax, %%es:16(%3)\n" -+ " movnti %%edx, %%es:20(%3)\n" - "10: movl 24(%4), %%eax\n" - "51: movl 28(%4), %%edx\n" -- " movnti %%eax, 24(%3)\n" -- " movnti %%edx, 28(%3)\n" -+ " movnti %%eax, %%es:24(%3)\n" -+ " movnti %%edx, %%es:28(%3)\n" - "11: movl 32(%4), %%eax\n" - "61: movl 36(%4), %%edx\n" -- " movnti %%eax, 32(%3)\n" -- " movnti %%edx, 36(%3)\n" -+ " movnti %%eax, %%es:32(%3)\n" -+ " movnti %%edx, %%es:36(%3)\n" - "12: movl 40(%4), %%eax\n" - "71: movl 44(%4), %%edx\n" -- " movnti %%eax, 40(%3)\n" -- " movnti %%edx, 44(%3)\n" -+ " movnti %%eax, %%es:40(%3)\n" -+ " movnti %%edx, %%es:44(%3)\n" - "13: movl 48(%4), %%eax\n" - "81: movl 52(%4), %%edx\n" -- " movnti %%eax, 48(%3)\n" -- " movnti %%edx, 52(%3)\n" -+ " movnti %%eax, %%es:48(%3)\n" -+ " movnti %%edx, %%es:52(%3)\n" - "14: movl 56(%4), %%eax\n" - "91: movl 60(%4), %%edx\n" -- " movnti %%eax, 56(%3)\n" -- " movnti %%edx, 60(%3)\n" -+ " movnti %%eax, %%es:56(%3)\n" -+ " movnti %%edx, %%es:60(%3)\n" - " addl $-64, %0\n" - " addl $64, %4\n" - " addl $64, %3\n" -@@ -491,6 +621,8 @@ static unsigned long __copy_user_zeroing - " movl %%eax,%0\n" - "7: rep; movsb\n" - "8:\n" -+ " pushl %%ss\n" -+ " popl %%ds\n" - ".section .fixup,\"ax\"\n" - "9: lea 0(%%eax,%0,4),%0\n" - "16: pushl %0\n" -@@ -525,7 +657,7 @@ static unsigned long __copy_user_zeroing - " .long 7b,16b\n" - ".previous" - : "=&c"(size), "=&D" (d0), "=&S" (d1) -- : "1"(to), "2"(from), "0"(size) -+ : "1"(to), "2"(from), "0"(size), "r"(__USER_DS) - : "eax", "edx", "memory"); - return size; - } -@@ -536,6 +668,7 @@ static unsigned long __copy_user_intel_n - int d0, d1; - - __asm__ __volatile__( -+ " movw %w6, %%ds\n" - " .align 2,0x90\n" - "0: movl 32(%4), %%eax\n" - " cmpl $67, %0\n" -@@ -544,36 +677,36 @@ static unsigned long __copy_user_intel_n - " .align 2,0x90\n" - "2: movl 0(%4), %%eax\n" - "21: movl 4(%4), %%edx\n" -- " movnti %%eax, 0(%3)\n" -- " movnti %%edx, 4(%3)\n" -+ " movnti %%eax, %%es:0(%3)\n" -+ " movnti %%edx, %%es:4(%3)\n" - "3: movl 8(%4), %%eax\n" - "31: movl 12(%4),%%edx\n" -- " movnti %%eax, 8(%3)\n" -- " movnti %%edx, 12(%3)\n" -+ " movnti %%eax, %%es:8(%3)\n" -+ " movnti %%edx, %%es:12(%3)\n" - "4: movl 16(%4), %%eax\n" - "41: movl 20(%4), %%edx\n" -- " movnti %%eax, 16(%3)\n" -- " movnti %%edx, 20(%3)\n" -+ " movnti %%eax, %%es:16(%3)\n" -+ " movnti %%edx, %%es:20(%3)\n" - "10: movl 24(%4), %%eax\n" - "51: movl 28(%4), %%edx\n" -- " movnti %%eax, 24(%3)\n" -- " movnti %%edx, 28(%3)\n" -+ " movnti %%eax, %%es:24(%3)\n" -+ " movnti %%edx, %%es:28(%3)\n" - "11: movl 32(%4), %%eax\n" - "61: movl 36(%4), %%edx\n" -- " movnti %%eax, 32(%3)\n" -- " movnti %%edx, 36(%3)\n" -+ " movnti %%eax, %%es:32(%3)\n" -+ " movnti %%edx, %%es:36(%3)\n" - "12: movl 40(%4), %%eax\n" - "71: movl 44(%4), %%edx\n" -- " movnti %%eax, 40(%3)\n" -- " movnti %%edx, 44(%3)\n" -+ " movnti %%eax, %%es:40(%3)\n" -+ " movnti %%edx, %%es:44(%3)\n" - "13: movl 48(%4), %%eax\n" - "81: movl 52(%4), %%edx\n" -- " movnti %%eax, 48(%3)\n" -- " movnti %%edx, 52(%3)\n" -+ " movnti %%eax, %%es:48(%3)\n" -+ " movnti %%edx, %%es:52(%3)\n" - "14: movl 56(%4), %%eax\n" - "91: movl 60(%4), %%edx\n" -- " movnti %%eax, 56(%3)\n" -- " movnti %%edx, 60(%3)\n" -+ " movnti %%eax, %%es:56(%3)\n" -+ " movnti %%edx, %%es:60(%3)\n" - " addl $-64, %0\n" - " addl $64, %4\n" - " addl $64, %3\n" -@@ -588,6 +721,8 @@ static unsigned long __copy_user_intel_n - " movl %%eax,%0\n" - "7: rep; movsb\n" - "8:\n" -+ " pushl %%ss\n" -+ " popl %%ds\n" - ".section .fixup,\"ax\"\n" - "9: lea 0(%%eax,%0,4),%0\n" - "16: jmp 8b\n" -@@ -616,7 +751,7 @@ static unsigned long __copy_user_intel_n - " .long 7b,16b\n" - ".previous" - : "=&c"(size), "=&D" (d0), "=&S" (d1) -- : "1"(to), "2"(from), "0"(size) -+ : "1"(to), "2"(from), "0"(size), "r"(__USER_DS) - : "eax", "edx", "memory"); - return size; - } -@@ -629,90 +764,146 @@ static unsigned long __copy_user_intel_n - */ - unsigned long __copy_user_zeroing_intel(void *to, const void __user *from, - unsigned long size); --unsigned long __copy_user_intel(void __user *to, const void *from, -+unsigned long __generic_copy_to_user_intel(void __user *to, const void *from, -+ unsigned long size); -+unsigned long __generic_copy_from_user_intel(void *to, const void __user *from, - unsigned long size); - unsigned long __copy_user_zeroing_intel_nocache(void *to, - const void __user *from, unsigned long size); - #endif /* CONFIG_X86_INTEL_USERCOPY */ - - /* Generic arbitrary sized copy. */ --#define __copy_user(to, from, size) \ --do { \ -- int __d0, __d1, __d2; \ -- __asm__ __volatile__( \ -- " cmp $7,%0\n" \ -- " jbe 1f\n" \ -- " movl %1,%0\n" \ -- " negl %0\n" \ -- " andl $7,%0\n" \ -- " subl %0,%3\n" \ -- "4: rep; movsb\n" \ -- " movl %3,%0\n" \ -- " shrl $2,%0\n" \ -- " andl $3,%3\n" \ -- " .align 2,0x90\n" \ -- "0: rep; movsl\n" \ -- " movl %3,%0\n" \ -- "1: rep; movsb\n" \ -- "2:\n" \ -- ".section .fixup,\"ax\"\n" \ -- "5: addl %3,%0\n" \ -- " jmp 2b\n" \ -- "3: lea 0(%3,%0,4),%0\n" \ -- " jmp 2b\n" \ -- ".previous\n" \ -- ".section __ex_table,\"a\"\n" \ -- " .align 4\n" \ -- " .long 4b,5b\n" \ -- " .long 0b,3b\n" \ -- " .long 1b,2b\n" \ -- ".previous" \ -- : "=&c"(size), "=&D" (__d0), "=&S" (__d1), "=r"(__d2) \ -- : "3"(size), "0"(size), "1"(to), "2"(from) \ -- : "memory"); \ --} while (0) -- --#define __copy_user_zeroing(to, from, size) \ --do { \ -- int __d0, __d1, __d2; \ -- __asm__ __volatile__( \ -- " cmp $7,%0\n" \ -- " jbe 1f\n" \ -- " movl %1,%0\n" \ -- " negl %0\n" \ -- " andl $7,%0\n" \ -- " subl %0,%3\n" \ -- "4: rep; movsb\n" \ -- " movl %3,%0\n" \ -- " shrl $2,%0\n" \ -- " andl $3,%3\n" \ -- " .align 2,0x90\n" \ -- "0: rep; movsl\n" \ -- " movl %3,%0\n" \ -- "1: rep; movsb\n" \ -- "2:\n" \ -- ".section .fixup,\"ax\"\n" \ -- "5: addl %3,%0\n" \ -- " jmp 6f\n" \ -- "3: lea 0(%3,%0,4),%0\n" \ -- "6: pushl %0\n" \ -- " pushl %%eax\n" \ -- " xorl %%eax,%%eax\n" \ -- " rep; stosb\n" \ -- " popl %%eax\n" \ -- " popl %0\n" \ -- " jmp 2b\n" \ -- ".previous\n" \ -- ".section __ex_table,\"a\"\n" \ -- " .align 4\n" \ -- " .long 4b,5b\n" \ -- " .long 0b,3b\n" \ -- " .long 1b,6b\n" \ -- ".previous" \ -- : "=&c"(size), "=&D" (__d0), "=&S" (__d1), "=r"(__d2) \ -- : "3"(size), "0"(size), "1"(to), "2"(from) \ -- : "memory"); \ --} while (0) -+static unsigned long -+__generic_copy_to_user(void __user *to, const void *from, unsigned long size) -+{ -+ int __d0, __d1, __d2; -+ -+ __asm__ __volatile__( -+ " movw %w8,%%es\n" -+ " cmp $7,%0\n" -+ " jbe 1f\n" -+ " movl %1,%0\n" -+ " negl %0\n" -+ " andl $7,%0\n" -+ " subl %0,%3\n" -+ "4: rep; movsb\n" -+ " movl %3,%0\n" -+ " shrl $2,%0\n" -+ " andl $3,%3\n" -+ " .align 2,0x90\n" -+ "0: rep; movsl\n" -+ " movl %3,%0\n" -+ "1: rep; movsb\n" -+ "2:\n" -+ " pushl %%ss\n" -+ " popl %%es\n" -+ ".section .fixup,\"ax\"\n" -+ "5: addl %3,%0\n" -+ " jmp 2b\n" -+ "3: lea 0(%3,%0,4),%0\n" -+ " jmp 2b\n" -+ ".previous\n" -+ ".section __ex_table,\"a\"\n" -+ " .align 4\n" -+ " .long 4b,5b\n" -+ " .long 0b,3b\n" -+ " .long 1b,2b\n" -+ ".previous" -+ : "=&c"(size), "=&D" (__d0), "=&S" (__d1), "=r"(__d2) -+ : "3"(size), "0"(size), "1"(to), "2"(from), "r"(__USER_DS) -+ : "memory"); -+ return size; -+} -+ -+static unsigned long -+__generic_copy_from_user(void *to, const void __user *from, unsigned long size) -+{ -+ int __d0, __d1, __d2; -+ -+ __asm__ __volatile__( -+ " movw %w8,%%ds\n" -+ " cmp $7,%0\n" -+ " jbe 1f\n" -+ " movl %1,%0\n" -+ " negl %0\n" -+ " andl $7,%0\n" -+ " subl %0,%3\n" -+ "4: rep; movsb\n" -+ " movl %3,%0\n" -+ " shrl $2,%0\n" -+ " andl $3,%3\n" -+ " .align 2,0x90\n" -+ "0: rep; movsl\n" -+ " movl %3,%0\n" -+ "1: rep; movsb\n" -+ "2:\n" -+ " pushl %%ss\n" -+ " popl %%ds\n" -+ ".section .fixup,\"ax\"\n" -+ "5: addl %3,%0\n" -+ " jmp 2b\n" -+ "3: lea 0(%3,%0,4),%0\n" -+ " jmp 2b\n" -+ ".previous\n" -+ ".section __ex_table,\"a\"\n" -+ " .align 4\n" -+ " .long 4b,5b\n" -+ " .long 0b,3b\n" -+ " .long 1b,2b\n" -+ ".previous" -+ : "=&c"(size), "=&D" (__d0), "=&S" (__d1), "=r"(__d2) -+ : "3"(size), "0"(size), "1"(to), "2"(from), "r"(__USER_DS) -+ : "memory"); -+ return size; -+} -+ -+static unsigned long -+__copy_user_zeroing(void *to, const void __user *from, unsigned long size) -+{ -+ int __d0, __d1, __d2; -+ -+ __asm__ __volatile__( -+ " movw %w8,%%ds\n" -+ " cmp $7,%0\n" -+ " jbe 1f\n" -+ " movl %1,%0\n" -+ " negl %0\n" -+ " andl $7,%0\n" -+ " subl %0,%3\n" -+ "4: rep; movsb\n" -+ " movl %3,%0\n" -+ " shrl $2,%0\n" -+ " andl $3,%3\n" -+ " .align 2,0x90\n" -+ "0: rep; movsl\n" -+ " movl %3,%0\n" -+ "1: rep; movsb\n" -+ "2:\n" -+ " pushl %%ss\n" -+ " popl %%ds\n" -+ ".section .fixup,\"ax\"\n" -+ "5: addl %3,%0\n" -+ " jmp 6f\n" -+ "3: lea 0(%3,%0,4),%0\n" -+ "6: pushl %0\n" -+ " pushl %%eax\n" -+ " xorl %%eax,%%eax\n" -+ " rep; stosb\n" -+ " popl %%eax\n" -+ " popl %0\n" -+ " jmp 2b\n" -+ ".previous\n" -+ ".section __ex_table,\"a\"\n" -+ " .align 4\n" -+ " .long 4b,5b\n" -+ " .long 0b,3b\n" -+ " .long 1b,6b\n" -+ ".previous" -+ : "=&c"(size), "=&D" (__d0), "=&S" (__d1), "=r"(__d2) -+ : "3"(size), "0"(size), "1"(to), "2"(from), "r"(__USER_DS) -+ : "memory"); -+ return size; -+} - - unsigned long __copy_to_user_ll(void __user *to, const void *from, - unsigned long n) -@@ -775,9 +966,9 @@ survive: - } - #endif - if (movsl_is_ok(to, from, n)) -- __copy_user(to, from, n); -+ n = __generic_copy_to_user(to, from, n); - else -- n = __copy_user_intel(to, from, n); -+ n = __generic_copy_to_user_intel(to, from, n); - return n; - } - EXPORT_SYMBOL(__copy_to_user_ll); -@@ -786,7 +977,7 @@ unsigned long __copy_from_user_ll(void * - unsigned long n) - { - if (movsl_is_ok(to, from, n)) -- __copy_user_zeroing(to, from, n); -+ n = __copy_user_zeroing(to, from, n); - else - n = __copy_user_zeroing_intel(to, from, n); - return n; -@@ -797,10 +988,9 @@ unsigned long __copy_from_user_ll_nozero - unsigned long n) - { - if (movsl_is_ok(to, from, n)) -- __copy_user(to, from, n); -+ n = __generic_copy_from_user(to, from, n); - else -- n = __copy_user_intel((void __user *)to, -- (const void *)from, n); -+ n = __generic_copy_from_user_intel(to, from, n); - return n; - } - EXPORT_SYMBOL(__copy_from_user_ll_nozero); -@@ -812,9 +1002,9 @@ unsigned long __copy_from_user_ll_nocach - if (n > 64 && cpu_has_xmm2) - n = __copy_user_zeroing_intel_nocache(to, from, n); - else -- __copy_user_zeroing(to, from, n); -+ n = __copy_user_zeroing(to, from, n); - #else -- __copy_user_zeroing(to, from, n); -+ n = __copy_user_zeroing(to, from, n); - #endif - return n; - } -@@ -827,9 +1017,9 @@ unsigned long __copy_from_user_ll_nocach - if (n > 64 && cpu_has_xmm2) - n = __copy_user_intel_nocache(to, from, n); - else -- __copy_user(to, from, n); -+ n = __generic_copy_from_user(to, from, n); - #else -- __copy_user(to, from, n); -+ n = __generic_copy_from_user(to, from, n); - #endif - return n; - } -@@ -878,8 +1068,35 @@ copy_from_user(void *to, const void __us - { - if (access_ok(VERIFY_READ, from, n)) - n = __copy_from_user(to, from, n); -- else -+ else if ((long)n > 0) - memset(to, 0, n); - return n; - } - EXPORT_SYMBOL(copy_from_user); -+ -+#ifdef CONFIG_PAX_MEMORY_UDEREF -+void __set_fs(mm_segment_t x, int cpu) -+{ -+ unsigned long limit = x.seg; -+ struct desc_struct d; -+ -+ current_thread_info()->addr_limit = x; -+ if (likely(limit)) -+ limit = (limit - 1UL) >> PAGE_SHIFT; -+ pack_descriptor(&d, 0UL, limit, 0xF3, 0xC); -+ write_gdt_entry(get_cpu_gdt_table(cpu), GDT_ENTRY_DEFAULT_USER_DS, &d, DESCTYPE_S); -+} -+ -+void set_fs(mm_segment_t x) -+{ -+ __set_fs(x, get_cpu()); -+ put_cpu_no_resched(); -+} -+#else -+void set_fs(mm_segment_t x) -+{ -+ current_thread_info()->addr_limit = x; -+} -+#endif -+ -+EXPORT_SYMBOL(set_fs); -diff -urNp linux-2.6.28.8/arch/x86/mach-voyager/voyager_basic.c linux-2.6.28.8/arch/x86/mach-voyager/voyager_basic.c ---- linux-2.6.28.8/arch/x86/mach-voyager/voyager_basic.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/x86/mach-voyager/voyager_basic.c 2009-02-21 09:37:48.000000000 -0500 -@@ -123,7 +123,7 @@ int __init voyager_memory_detect(int reg - __u8 cmos[4]; - ClickMap_t *map; - unsigned long map_addr; -- unsigned long old; -+ pte_t old; - - if (region >= CLICK_ENTRIES) { - printk("Voyager: Illegal ClickMap region %d\n", region); -@@ -138,7 +138,7 @@ int __init voyager_memory_detect(int reg - - /* steal page 0 for this */ - old = pg0[0]; -- pg0[0] = ((map_addr & PAGE_MASK) | _PAGE_RW | _PAGE_PRESENT); -+ pg0[0] = __pte((map_addr & PAGE_MASK) | _PAGE_RW | _PAGE_PRESENT); - local_flush_tlb(); - /* now clear everything out but page 0 */ - map = (ClickMap_t *) (map_addr & (~PAGE_MASK)); -diff -urNp linux-2.6.28.8/arch/x86/mach-voyager/voyager_smp.c linux-2.6.28.8/arch/x86/mach-voyager/voyager_smp.c ---- linux-2.6.28.8/arch/x86/mach-voyager/voyager_smp.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/x86/mach-voyager/voyager_smp.c 2009-02-21 09:37:48.000000000 -0500 -@@ -521,6 +521,10 @@ static void __init do_boot_cpu(__u8 cpu) - __u32 *hijack_vector; - __u32 start_phys_address = setup_trampoline(); - -+#ifdef CONFIG_PAX_KERNEXEC -+ unsigned long cr0; -+#endif -+ - /* There's a clever trick to this: The linux trampoline is - * compiled to begin at absolute location zero, so make the - * address zero but have the data segment selector compensate -@@ -540,7 +544,17 @@ static void __init do_boot_cpu(__u8 cpu) - - init_gdt(cpu); - per_cpu(current_task, cpu) = idle; -- early_gdt_descr.address = (unsigned long)get_cpu_gdt_table(cpu); -+ -+#ifdef CONFIG_PAX_KERNEXEC -+ pax_open_kernel(cr0); -+#endif -+ -+ early_gdt_descr.address = get_cpu_gdt_table(cpu); -+ -+#ifdef CONFIG_PAX_KERNEXEC -+ pax_close_kernel(cr0); -+#endif -+ - irq_ctx_init(cpu); - - /* Note: Don't modify initial ss override */ -@@ -1154,7 +1168,7 @@ void smp_local_timer_interrupt(void) - per_cpu(prof_counter, cpu); - } - -- update_process_times(user_mode_vm(get_irq_regs())); -+ update_process_times(user_mode(get_irq_regs())); - } - - if (((1 << cpu) & voyager_extended_vic_processors) == 0) -diff -urNp linux-2.6.28.8/arch/x86/Makefile linux-2.6.28.8/arch/x86/Makefile ---- linux-2.6.28.8/arch/x86/Makefile 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/x86/Makefile 2009-02-21 09:37:48.000000000 -0500 -@@ -232,3 +232,12 @@ endef - CLEAN_FILES += arch/x86/boot/fdimage \ - arch/x86/boot/image.iso \ - arch/x86/boot/mtools.conf -+ -+define OLD_LD -+ -+*** ${VERSION}.${PATCHLEVEL} PaX kernels no longer build correctly with old versions of binutils. -+*** Please upgrade your binutils to 2.18 or newer -+endef -+ -+archprepare: -+ $(if $(LDFLAGS_BUILD_ID),,$(error $(OLD_LD))) -diff -urNp linux-2.6.28.8/arch/x86/mm/extable.c linux-2.6.28.8/arch/x86/mm/extable.c ---- linux-2.6.28.8/arch/x86/mm/extable.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/x86/mm/extable.c 2009-02-21 09:37:48.000000000 -0500 -@@ -1,14 +1,62 @@ - #include <linux/module.h> - #include <linux/spinlock.h> -+#include <linux/sort.h> - #include <asm/uaccess.h> - -+/* -+ * The exception table needs to be sorted so that the binary -+ * search that we use to find entries in it works properly. -+ * This is used both for the kernel exception table and for -+ * the exception tables of modules that get loaded. -+ */ -+static int cmp_ex(const void *a, const void *b) -+{ -+ const struct exception_table_entry *x = a, *y = b; -+ -+ /* avoid overflow */ -+ if (x->insn > y->insn) -+ return 1; -+ if (x->insn < y->insn) -+ return -1; -+ return 0; -+} -+ -+static void swap_ex(void *a, void *b, int size) -+{ -+ struct exception_table_entry t, *x = a, *y = b; -+ -+#ifdef CONFIG_PAX_KERNEXEC -+ unsigned long cr0; -+#endif -+ -+ t = *x; -+ -+#ifdef CONFIG_PAX_KERNEXEC -+ pax_open_kernel(cr0); -+#endif -+ -+ *x = *y; -+ *y = t; -+ -+#ifdef CONFIG_PAX_KERNEXEC -+ pax_close_kernel(cr0); -+#endif -+ -+} -+ -+void sort_extable(struct exception_table_entry *start, -+ struct exception_table_entry *finish) -+{ -+ sort(start, finish - start, sizeof(struct exception_table_entry), -+ cmp_ex, swap_ex); -+} - - int fixup_exception(struct pt_regs *regs) - { - const struct exception_table_entry *fixup; - - #ifdef CONFIG_PNPBIOS -- if (unlikely(SEGMENT_IS_PNP_CODE(regs->cs))) { -+ if (unlikely(!v8086_mode(regs) && SEGMENT_IS_PNP_CODE(regs->cs))) { - extern u32 pnp_bios_fault_eip, pnp_bios_fault_esp; - extern u32 pnp_bios_is_utter_crap; - pnp_bios_is_utter_crap = 1; -diff -urNp linux-2.6.28.8/arch/x86/mm/fault.c linux-2.6.28.8/arch/x86/mm/fault.c ---- linux-2.6.28.8/arch/x86/mm/fault.c 2009-02-07 16:10:45.000000000 -0500 -+++ linux-2.6.28.8/arch/x86/mm/fault.c 2009-02-21 09:37:48.000000000 -0500 -@@ -26,6 +26,8 @@ - #include <linux/kprobes.h> - #include <linux/uaccess.h> - #include <linux/kdebug.h> -+#include <linux/unistd.h> -+#include <linux/compiler.h> - - #include <asm/system.h> - #include <asm/desc.h> -@@ -67,7 +69,7 @@ static inline int notify_page_fault(stru - int ret = 0; - - /* kprobe_running() needs smp_processor_id() */ -- if (!user_mode_vm(regs)) { -+ if (!user_mode(regs)) { - preempt_disable(); - if (kprobe_running() && kprobe_fault_handler(regs, 14)) - ret = 1; -@@ -265,6 +267,30 @@ bad: - #endif - } - -+#ifdef CONFIG_PAX_EMUTRAMP -+static int pax_handle_fetch_fault(struct pt_regs *regs); -+#endif -+ -+#ifdef CONFIG_PAX_PAGEEXEC -+static inline pmd_t * pax_get_pmd(struct mm_struct *mm, unsigned long address) -+{ -+ pgd_t *pgd; -+ pud_t *pud; -+ pmd_t *pmd; -+ -+ pgd = pgd_offset(mm, address); -+ if (!pgd_present(*pgd)) -+ return NULL; -+ pud = pud_offset(pgd, address); -+ if (!pud_present(*pud)) -+ return NULL; -+ pmd = pmd_offset(pud, address); -+ if (!pmd_present(*pmd)) -+ return NULL; -+ return pmd; -+} -+#endif -+ - #ifdef CONFIG_X86_32 - static inline pmd_t *vmalloc_sync_one(pgd_t *pgd, unsigned long address) - { -@@ -351,7 +377,7 @@ static int is_errata93(struct pt_regs *r - static int is_errata100(struct pt_regs *regs, unsigned long address) - { - #ifdef CONFIG_X86_64 -- if ((regs->cs == __USER32_CS || (regs->cs & (1<<2))) && -+ if ((regs->cs == __USER32_CS || (regs->cs & SEGMENT_LDT)) && - (address >> 32)) - return 1; - #endif -@@ -386,14 +412,31 @@ static void show_fault_oops(struct pt_re - #endif - - #ifdef CONFIG_X86_PAE -- if (error_code & PF_INSTR) { -+ if (nx_enabled && (error_code & PF_INSTR)) { - unsigned int level; - pte_t *pte = lookup_address(address, &level); - - if (pte && pte_present(*pte) && !pte_exec(*pte)) - printk(KERN_CRIT "kernel tried to execute " - "NX-protected page - exploit attempt? " -- "(uid: %d)\n", current->uid); -+ "(uid: %d, task: %s, pid: %d)\n", -+ current->uid, current->comm, task_pid_nr(current)); -+ } -+#endif -+ -+#ifdef CONFIG_PAX_KERNEXEC -+#ifdef CONFIG_MODULES -+ if (init_mm.start_code <= address && address < (unsigned long)MODULES_END) -+#else -+ if (init_mm.start_code <= address && address < init_mm.end_code) -+#endif -+ { -+ if (current->signal->curr_ip) -+ printk(KERN_ERR "PAX: From %u.%u.%u.%u: %s:%d, uid/euid: %u/%u, attempted to modify kernel code\n", -+ NIPQUAD(current->signal->curr_ip), current->comm, task_pid_nr(current), current->uid, current->euid); -+ else -+ printk(KERN_ERR "PAX: %s:%d, uid/euid: %u/%u, attempted to modify kernel code\n", -+ current->comm, task_pid_nr(current), current->uid, current->euid); - } - #endif - -@@ -585,20 +628,26 @@ void __kprobes do_page_fault(struct pt_r - struct task_struct *tsk; - struct mm_struct *mm; - struct vm_area_struct *vma; -- unsigned long address; - int write, si_code; - int fault; - #ifdef CONFIG_X86_64 - unsigned long flags; - #endif - -+#if defined(CONFIG_X86_32) && defined(CONFIG_PAX_PAGEEXEC) -+ pte_t *pte; -+ pmd_t *pmd; -+ spinlock_t *ptl; -+ unsigned char pte_mask; -+#endif -+ -+ /* get the address */ -+ const unsigned long address = read_cr2(); -+ - tsk = current; - mm = tsk->mm; - prefetchw(&mm->mmap_sem); - -- /* get the address */ -- address = read_cr2(); -- - si_code = SEGV_MAPERR; - - if (unlikely(kmmio_fault(regs, address))) -@@ -651,7 +700,7 @@ void __kprobes do_page_fault(struct pt_r - * User-mode registers count as a user access even for any - * potential system fault or CPU buglet. - */ -- if (user_mode_vm(regs)) { -+ if (user_mode(regs)) { - local_irq_enable(); - error_code |= PF_USER; - } else if (regs->flags & X86_EFLAGS_IF) -@@ -667,7 +716,7 @@ void __kprobes do_page_fault(struct pt_r - * atomic region then we must not take the fault. - */ - if (unlikely(in_atomic() || !mm)) -- goto bad_area_nosemaphore; -+ goto bad_area_nopax; - - again: - /* -@@ -689,10 +738,104 @@ again: - if (!down_read_trylock(&mm->mmap_sem)) { - if ((error_code & PF_USER) == 0 && - !search_exception_tables(regs->ip)) -- goto bad_area_nosemaphore; -+ goto bad_area_nopax; - down_read(&mm->mmap_sem); - } - -+#if defined(CONFIG_X86_32) && defined(CONFIG_PAX_PAGEEXEC) -+ if (nx_enabled || (error_code & (PF_PROT|PF_USER)) != (PF_PROT|PF_USER) || v8086_mode(regs) || -+ !(mm->pax_flags & MF_PAX_PAGEEXEC)) -+ goto not_pax_fault; -+ -+ /* PaX: it's our fault, let's handle it if we can */ -+ -+ /* PaX: take a look at read faults before acquiring any locks */ -+ if (unlikely(!(error_code & PF_WRITE) && (regs->ip == address))) { -+ /* instruction fetch attempt from a protected page in user mode */ -+ up_read(&mm->mmap_sem); -+ -+#ifdef CONFIG_PAX_EMUTRAMP -+ switch (pax_handle_fetch_fault(regs)) { -+ case 2: -+ return; -+ } -+#endif -+ -+ pax_report_fault(regs, (void *)regs->ip, (void *)regs->sp); -+ do_group_exit(SIGKILL); -+ } -+ -+ pmd = pax_get_pmd(mm, address); -+ if (unlikely(!pmd)) -+ goto not_pax_fault; -+ -+ pte = pte_offset_map_lock(mm, pmd, address, &ptl); -+ if (unlikely(!(pte_val(*pte) & _PAGE_PRESENT) || pte_user(*pte))) { -+ pte_unmap_unlock(pte, ptl); -+ goto not_pax_fault; -+ } -+ -+ if (unlikely((error_code & PF_WRITE) && !pte_write(*pte))) { -+ /* write attempt to a protected page in user mode */ -+ pte_unmap_unlock(pte, ptl); -+ goto not_pax_fault; -+ } -+ -+#ifdef CONFIG_SMP -+ if (likely(address > get_limit(regs->cs) && cpu_isset(smp_processor_id(), mm->context.cpu_user_cs_mask))) -+#else -+ if (likely(address > get_limit(regs->cs))) -+#endif -+ { -+ set_pte(pte, pte_mkread(*pte)); -+ __flush_tlb_one(address); -+ pte_unmap_unlock(pte, ptl); -+ up_read(&mm->mmap_sem); -+ return; -+ } -+ -+ pte_mask = _PAGE_ACCESSED | _PAGE_USER | ((error_code & PF_WRITE) << (_PAGE_BIT_DIRTY-1)); -+ -+ /* -+ * PaX: fill DTLB with user rights and retry -+ */ -+ __asm__ __volatile__ ( -+#ifdef CONFIG_PAX_MEMORY_UDEREF -+ "movw %w4,%%es\n" -+#endif -+ "orb %2,(%1)\n" -+#if defined(CONFIG_M586) || defined(CONFIG_M586TSC) -+/* -+ * PaX: let this uncommented 'invlpg' remind us on the behaviour of Intel's -+ * (and AMD's) TLBs. namely, they do not cache PTEs that would raise *any* -+ * page fault when examined during a TLB load attempt. this is true not only -+ * for PTEs holding a non-present entry but also present entries that will -+ * raise a page fault (such as those set up by PaX, or the copy-on-write -+ * mechanism). in effect it means that we do *not* need to flush the TLBs -+ * for our target pages since their PTEs are simply not in the TLBs at all. -+ -+ * the best thing in omitting it is that we gain around 15-20% speed in the -+ * fast path of the page fault handler and can get rid of tracing since we -+ * can no longer flush unintended entries. -+ */ -+ "invlpg (%0)\n" -+#endif -+ "testb $0,%%es:(%0)\n" -+ "xorb %3,(%1)\n" -+#ifdef CONFIG_PAX_MEMORY_UDEREF -+ "pushl %%ss\n" -+ "popl %%es\n" -+#endif -+ : -+ : "r" (address), "r" (pte), "q" (pte_mask), "i" (_PAGE_USER), "r" (__USER_DS) -+ : "memory", "cc"); -+ pte_unmap_unlock(pte, ptl); -+ up_read(&mm->mmap_sem); -+ return; -+ -+not_pax_fault: -+#endif -+ - vma = find_vma(mm, address); - if (!vma) - goto bad_area; -@@ -700,16 +843,20 @@ again: - goto good_area; - if (!(vma->vm_flags & VM_GROWSDOWN)) - goto bad_area; -- if (error_code & PF_USER) { -- /* -- * Accessing the stack below %sp is always a bug. -- * The large cushion allows instructions like enter -- * and pusha to work. ("enter $65535,$31" pushes -- * 32 pointers and then decrements %sp by 65535.) -- */ -- if (address + 65536 + 32 * sizeof(unsigned long) < regs->sp) -- goto bad_area; -- } -+ /* -+ * Accessing the stack below %sp is always a bug. -+ * The large cushion allows instructions like enter -+ * and pusha to work. ("enter $65535,$31" pushes -+ * 32 pointers and then decrements %sp by 65535.) -+ */ -+ if (address + 65536 + 32 * sizeof(unsigned long) < task_pt_regs(tsk)->sp) -+ goto bad_area; -+ -+#ifdef CONFIG_PAX_SEGMEXEC -+ if ((mm->pax_flags & MF_PAX_SEGMEXEC) && vma->vm_end - SEGMEXEC_TASK_SIZE - 1 < address - SEGMEXEC_TASK_SIZE - 1) -+ goto bad_area; -+#endif -+ - if (expand_stack(vma, address)) - goto bad_area; - /* -@@ -719,6 +866,8 @@ again: - good_area: - si_code = SEGV_ACCERR; - write = 0; -+ if (nx_enabled && (error_code & PF_INSTR) && !(vma->vm_flags & VM_EXEC)) -+ goto bad_area; - switch (error_code & (PF_PROT|PF_WRITE)) { - default: /* 3: write, present */ - /* fall through */ -@@ -773,6 +922,54 @@ bad_area: - up_read(&mm->mmap_sem); - - bad_area_nosemaphore: -+ -+#if defined(CONFIG_PAX_PAGEEXEC) || defined(CONFIG_PAX_SEGMEXEC) -+ if (mm && (error_code & PF_USER)) { -+ unsigned long ip = regs->ip; -+ -+ if (v8086_mode(regs)) -+ ip = ((regs->cs & 0xffff) << 4) + (regs->ip & 0xffff); -+ -+ /* -+ * It's possible to have interrupts off here. -+ */ -+ local_irq_enable(); -+ -+#ifdef CONFIG_PAX_PAGEEXEC -+ if ((mm->pax_flags & MF_PAX_PAGEEXEC) && -+ ((nx_enabled && (error_code & PF_INSTR)) || (!(error_code & (PF_PROT | PF_WRITE)) && regs->ip == address))) { -+ -+#ifdef CONFIG_PAX_EMUTRAMP -+ switch (pax_handle_fetch_fault(regs)) { -+ case 2: -+ return; -+ } -+#endif -+ -+ pax_report_fault(regs, (void *)regs->ip, (void *)regs->sp); -+ do_group_exit(SIGKILL); -+ } -+#endif -+ -+#ifdef CONFIG_PAX_SEGMEXEC -+ if ((mm->pax_flags & MF_PAX_SEGMEXEC) && !(error_code & (PF_PROT | PF_WRITE)) && (regs->ip + SEGMEXEC_TASK_SIZE == address)) { -+ -+#ifdef CONFIG_PAX_EMUTRAMP -+ switch (pax_handle_fetch_fault(regs)) { -+ case 2: -+ return; -+ } -+#endif -+ -+ pax_report_fault(regs, (void *)regs->ip, (void *)regs->sp); -+ do_group_exit(SIGKILL); -+ } -+#endif -+ -+ } -+#endif -+ -+bad_area_nopax: - /* User mode accesses just cause a SIGSEGV */ - if (error_code & PF_USER) { - /* -@@ -851,7 +1048,7 @@ no_context: - #ifdef CONFIG_X86_32 - die("Oops", regs, error_code); - bust_spinlocks(0); -- do_exit(SIGKILL); -+ do_group_exit(SIGKILL); - #else - if (__die("Oops", regs, error_code)) - regs = NULL; -@@ -944,3 +1141,174 @@ void vmalloc_sync_all(void) - } - #endif - } -+ -+#ifdef CONFIG_PAX_EMUTRAMP -+static int pax_handle_fetch_fault_32(struct pt_regs *regs) -+{ -+ int err; -+ -+ do { /* PaX: gcc trampoline emulation #1 */ -+ unsigned char mov1, mov2; -+ unsigned short jmp; -+ unsigned int addr1, addr2; -+ -+#ifdef CONFIG_X86_64 -+ if ((regs->ip + 11) >> 32) -+ break; -+#endif -+ -+ err = get_user(mov1, (unsigned char __user *)regs->ip); -+ err |= get_user(addr1, (unsigned int __user *)(regs->ip + 1)); -+ err |= get_user(mov2, (unsigned char __user *)(regs->ip + 5)); -+ err |= get_user(addr2, (unsigned int __user *)(regs->ip + 6)); -+ err |= get_user(jmp, (unsigned short __user *)(regs->ip + 10)); -+ -+ if (err) -+ break; -+ -+ if (mov1 == 0xB9 && mov2 == 0xB8 && jmp == 0xE0FF) { -+ regs->cx = addr1; -+ regs->ax = addr2; -+ regs->ip = addr2; -+ return 2; -+ } -+ } while (0); -+ -+ do { /* PaX: gcc trampoline emulation #2 */ -+ unsigned char mov, jmp; -+ unsigned int addr1, addr2; -+ -+#ifdef CONFIG_X86_64 -+ if ((regs->ip + 9) >> 32) -+ break; -+#endif -+ -+ err = get_user(mov, (unsigned char __user *)regs->ip); -+ err |= get_user(addr1, (unsigned int __user *)(regs->ip + 1)); -+ err |= get_user(jmp, (unsigned char __user *)(regs->ip + 5)); -+ err |= get_user(addr2, (unsigned int __user *)(regs->ip + 6)); -+ -+ if (err) -+ break; -+ -+ if (mov == 0xB9 && jmp == 0xE9) { -+ regs->cx = addr1; -+ regs->ip = (unsigned int)(regs->ip + addr2 + 10); -+ return 2; -+ } -+ } while (0); -+ -+ return 1; /* PaX in action */ -+} -+ -+#ifdef CONFIG_X86_64 -+static int pax_handle_fetch_fault_64(struct pt_regs *regs) -+{ -+ int err; -+ -+ do { /* PaX: gcc trampoline emulation #1 */ -+ unsigned short mov1, mov2, jmp1; -+ unsigned char jmp2; -+ unsigned int addr1; -+ unsigned long addr2; -+ -+ err = get_user(mov1, (unsigned short __user *)regs->ip); -+ err |= get_user(addr1, (unsigned int __user *)(regs->ip + 2)); -+ err |= get_user(mov2, (unsigned short __user *)(regs->ip + 6)); -+ err |= get_user(addr2, (unsigned long __user *)(regs->ip + 8)); -+ err |= get_user(jmp1, (unsigned short __user *)(regs->ip + 16)); -+ err |= get_user(jmp2, (unsigned char __user *)(regs->ip + 18)); -+ -+ if (err) -+ break; -+ -+ if (mov1 == 0xBB41 && mov2 == 0xBA49 && jmp1 == 0xFF49 && jmp2 == 0xE3) { -+ regs->r11 = addr1; -+ regs->r10 = addr2; -+ regs->ip = addr1; -+ return 2; -+ } -+ } while (0); -+ -+ do { /* PaX: gcc trampoline emulation #2 */ -+ unsigned short mov1, mov2, jmp1; -+ unsigned char jmp2; -+ unsigned long addr1, addr2; -+ -+ err = get_user(mov1, (unsigned short __user *)regs->ip); -+ err |= get_user(addr1, (unsigned long __user *)(regs->ip + 2)); -+ err |= get_user(mov2, (unsigned short __user *)(regs->ip + 10)); -+ err |= get_user(addr2, (unsigned long __user *)(regs->ip + 12)); -+ err |= get_user(jmp1, (unsigned short __user *)(regs->ip + 20)); -+ err |= get_user(jmp2, (unsigned char __user *)(regs->ip + 22)); -+ -+ if (err) -+ break; -+ -+ if (mov1 == 0xBB49 && mov2 == 0xBA49 && jmp1 == 0xFF49 && jmp2 == 0xE3) { -+ regs->r11 = addr1; -+ regs->r10 = addr2; -+ regs->ip = addr1; -+ return 2; -+ } -+ } while (0); -+ -+ return 1; /* PaX in action */ -+} -+#endif -+ -+/* -+ * PaX: decide what to do with offenders (regs->ip = fault address) -+ * -+ * returns 1 when task should be killed -+ * 2 when gcc trampoline was detected -+ */ -+static int pax_handle_fetch_fault(struct pt_regs *regs) -+{ -+ if (v8086_mode(regs)) -+ return 1; -+ -+ if (!(current->mm->pax_flags & MF_PAX_EMUTRAMP)) -+ return 1; -+ -+#ifdef CONFIG_X86_32 -+ return pax_handle_fetch_fault_32(regs); -+#else -+ if (regs->cs == __USER32_CS || (regs->cs & SEGMENT_LDT)) -+ return pax_handle_fetch_fault_32(regs); -+ else -+ return pax_handle_fetch_fault_64(regs); -+#endif -+} -+#endif -+ -+#if defined(CONFIG_PAX_PAGEEXEC) || defined(CONFIG_PAX_SEGMEXEC) -+void pax_report_insns(void *pc, void *sp) -+{ -+ long i; -+ -+ printk(KERN_ERR "PAX: bytes at PC: "); -+ for (i = 0; i < 20; i++) { -+ unsigned char c; -+ if (get_user(c, (unsigned char __user *)pc+i)) -+ printk(KERN_CONT "?? "); -+ else -+ printk(KERN_CONT "%02x ", c); -+ } -+ printk("\n"); -+ -+ printk(KERN_ERR "PAX: bytes at SP-%lu: ", (unsigned long)sizeof(long)); -+ for (i = -1; i < 80 / sizeof(long); i++) { -+ unsigned long c; -+ if (get_user(c, (unsigned long __user *)sp+i)) -+#ifdef CONFIG_X86_32 -+ printk(KERN_CONT "???????? "); -+#else -+ printk(KERN_CONT "???????????????? "); -+#endif -+ else -+ printk(KERN_CONT "%0*lx ", 2 * (int)sizeof(long), c); -+ } -+ printk("\n"); -+} -+#endif -diff -urNp linux-2.6.28.8/arch/x86/mm/highmem_32.c linux-2.6.28.8/arch/x86/mm/highmem_32.c ---- linux-2.6.28.8/arch/x86/mm/highmem_32.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/x86/mm/highmem_32.c 2009-02-21 09:37:48.000000000 -0500 -@@ -74,6 +74,10 @@ void *kmap_atomic_prot(struct page *page - enum fixed_addresses idx; - unsigned long vaddr; - -+#ifdef CONFIG_PAX_KERNEXEC -+ unsigned long cr0; -+#endif -+ - /* even !CONFIG_PREEMPT needs this, for in_atomic in do_page_fault */ - pagefault_disable(); - -@@ -85,7 +89,17 @@ void *kmap_atomic_prot(struct page *page - idx = type + KM_TYPE_NR*smp_processor_id(); - vaddr = __fix_to_virt(FIX_KMAP_BEGIN + idx); - BUG_ON(!pte_none(*(kmap_pte-idx))); -+ -+#ifdef CONFIG_PAX_KERNEXEC -+ pax_open_kernel(cr0); -+#endif -+ - set_pte(kmap_pte-idx, mk_pte(page, prot)); -+ -+#ifdef CONFIG_PAX_KERNEXEC -+ pax_close_kernel(cr0); -+#endif -+ - arch_flush_lazy_mmu_mode(); - - return (void *)vaddr; -@@ -101,15 +115,29 @@ void kunmap_atomic(void *kvaddr, enum km - unsigned long vaddr = (unsigned long) kvaddr & PAGE_MASK; - enum fixed_addresses idx = type + KM_TYPE_NR*smp_processor_id(); - -+#ifdef CONFIG_PAX_KERNEXEC -+ unsigned long cr0; -+#endif -+ - /* - * Force other mappings to Oops if they'll try to access this pte - * without first remap it. Keeping stale mappings around is a bad idea - * also, in case the page changes cacheability attributes or becomes - * a protected page in a hypervisor. - */ -- if (vaddr == __fix_to_virt(FIX_KMAP_BEGIN+idx)) -+ if (vaddr == __fix_to_virt(FIX_KMAP_BEGIN+idx)) { -+ -+#ifdef CONFIG_PAX_KERNEXEC -+ pax_open_kernel(cr0); -+#endif -+ - kpte_clear_flush(kmap_pte-idx, vaddr); -- else { -+ -+#ifdef CONFIG_PAX_KERNEXEC -+ pax_close_kernel(cr0); -+#endif -+ -+ } else { - #ifdef CONFIG_DEBUG_HIGHMEM - BUG_ON(vaddr < PAGE_OFFSET); - BUG_ON(vaddr >= (unsigned long)high_memory); -@@ -128,11 +156,25 @@ void *kmap_atomic_pfn(unsigned long pfn, - enum fixed_addresses idx; - unsigned long vaddr; - -+#ifdef CONFIG_PAX_KERNEXEC -+ unsigned long cr0; -+#endif -+ - pagefault_disable(); - - idx = type + KM_TYPE_NR*smp_processor_id(); - vaddr = __fix_to_virt(FIX_KMAP_BEGIN + idx); -+ -+#ifdef CONFIG_PAX_KERNEXEC -+ pax_open_kernel(cr0); -+#endif -+ - set_pte(kmap_pte-idx, pfn_pte(pfn, kmap_prot)); -+ -+#ifdef CONFIG_PAX_KERNEXEC -+ pax_close_kernel(cr0); -+#endif -+ - arch_flush_lazy_mmu_mode(); - - return (void*) vaddr; -diff -urNp linux-2.6.28.8/arch/x86/mm/hugetlbpage.c linux-2.6.28.8/arch/x86/mm/hugetlbpage.c ---- linux-2.6.28.8/arch/x86/mm/hugetlbpage.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/x86/mm/hugetlbpage.c 2009-02-21 09:37:48.000000000 -0500 -@@ -263,13 +263,18 @@ static unsigned long hugetlb_get_unmappe - struct hstate *h = hstate_file(file); - struct mm_struct *mm = current->mm; - struct vm_area_struct *vma; -- unsigned long start_addr; -+ unsigned long start_addr, pax_task_size = TASK_SIZE; -+ -+#ifdef CONFIG_PAX_SEGMEXEC -+ if (mm->pax_flags & MF_PAX_SEGMEXEC) -+ pax_task_size = SEGMEXEC_TASK_SIZE; -+#endif - - if (len > mm->cached_hole_size) { -- start_addr = mm->free_area_cache; -+ start_addr = mm->free_area_cache; - } else { -- start_addr = TASK_UNMAPPED_BASE; -- mm->cached_hole_size = 0; -+ start_addr = mm->mmap_base; -+ mm->cached_hole_size = 0; - } - - full_search: -@@ -277,13 +282,13 @@ full_search: - - for (vma = find_vma(mm, addr); ; vma = vma->vm_next) { - /* At this point: (!vma || addr < vma->vm_end). */ -- if (TASK_SIZE - len < addr) { -+ if (pax_task_size - len < addr) { - /* - * Start a new search - just in case we missed - * some holes. - */ -- if (start_addr != TASK_UNMAPPED_BASE) { -- start_addr = TASK_UNMAPPED_BASE; -+ if (start_addr != mm->mmap_base) { -+ start_addr = mm->mmap_base; - mm->cached_hole_size = 0; - goto full_search; - } -@@ -306,9 +311,8 @@ static unsigned long hugetlb_get_unmappe - struct hstate *h = hstate_file(file); - struct mm_struct *mm = current->mm; - struct vm_area_struct *vma, *prev_vma; -- unsigned long base = mm->mmap_base, addr = addr0; -+ unsigned long base = mm->mmap_base, addr; - unsigned long largest_hole = mm->cached_hole_size; -- int first_time = 1; - - /* don't allow allocations above current base */ - if (mm->free_area_cache > base) -@@ -318,7 +322,7 @@ static unsigned long hugetlb_get_unmappe - largest_hole = 0; - mm->free_area_cache = base; - } --try_again: -+ - /* make sure it can fit in the remaining address space */ - if (mm->free_area_cache < len) - goto fail; -@@ -360,22 +364,26 @@ try_again: - - fail: - /* -- * if hint left us with no space for the requested -- * mapping then try again: -- */ -- if (first_time) { -- mm->free_area_cache = base; -- largest_hole = 0; -- first_time = 0; -- goto try_again; -- } -- /* - * A failed mmap() very likely causes application failure, - * so fall back to the bottom-up function here. This scenario - * can happen with large stack limits and large mmap() - * allocations. - */ -- mm->free_area_cache = TASK_UNMAPPED_BASE; -+ -+#ifdef CONFIG_PAX_SEGMEXEC -+ if (mm->pax_flags & MF_PAX_SEGMEXEC) -+ mm->mmap_base = SEGMEXEC_TASK_UNMAPPED_BASE; -+ else -+#endif -+ -+ mm->mmap_base = TASK_UNMAPPED_BASE; -+ -+#ifdef CONFIG_PAX_RANDMMAP -+ if (mm->pax_flags & MF_PAX_RANDMMAP) -+ mm->mmap_base += mm->delta_mmap; -+#endif -+ -+ mm->free_area_cache = mm->mmap_base; - mm->cached_hole_size = ~0UL; - addr = hugetlb_get_unmapped_area_bottomup(file, addr0, - len, pgoff, flags); -@@ -383,6 +391,7 @@ fail: - /* - * Restore the topdown base: - */ -+ mm->mmap_base = base; - mm->free_area_cache = base; - mm->cached_hole_size = ~0UL; - -@@ -396,10 +405,17 @@ hugetlb_get_unmapped_area(struct file *f - struct hstate *h = hstate_file(file); - struct mm_struct *mm = current->mm; - struct vm_area_struct *vma; -+ unsigned long pax_task_size = TASK_SIZE; - - if (len & ~huge_page_mask(h)) - return -EINVAL; -- if (len > TASK_SIZE) -+ -+#ifdef CONFIG_PAX_SEGMEXEC -+ if (mm->pax_flags & MF_PAX_SEGMEXEC) -+ pax_task_size = SEGMEXEC_TASK_SIZE; -+#endif -+ -+ if (len > pax_task_size) - return -ENOMEM; - - if (flags & MAP_FIXED) { -@@ -411,7 +427,7 @@ hugetlb_get_unmapped_area(struct file *f - if (addr) { - addr = ALIGN(addr, huge_page_size(h)); - vma = find_vma(mm, addr); -- if (TASK_SIZE - len >= addr && -+ if (pax_task_size - len >= addr && - (!vma || addr + len <= vma->vm_start)) - return addr; - } -diff -urNp linux-2.6.28.8/arch/x86/mm/init_32.c linux-2.6.28.8/arch/x86/mm/init_32.c ---- linux-2.6.28.8/arch/x86/mm/init_32.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/x86/mm/init_32.c 2009-02-21 09:37:48.000000000 -0500 -@@ -49,6 +49,7 @@ - #include <asm/setup.h> - #include <asm/cacheflush.h> - #include <asm/smp.h> -+#include <asm/desc.h> - - unsigned int __VMALLOC_RESERVE = 128 << 20; - -@@ -82,35 +83,6 @@ static __init void *alloc_low_page(unsig - } - - /* -- * Creates a middle page table and puts a pointer to it in the -- * given global directory entry. This only returns the gd entry -- * in non-PAE compilation mode, since the middle layer is folded. -- */ --static pmd_t * __init one_md_table_init(pgd_t *pgd) --{ -- pud_t *pud; -- pmd_t *pmd_table; -- --#ifdef CONFIG_X86_PAE -- unsigned long phys; -- if (!(pgd_val(*pgd) & _PAGE_PRESENT)) { -- if (after_init_bootmem) -- pmd_table = (pmd_t *)alloc_bootmem_low_pages(PAGE_SIZE); -- else -- pmd_table = (pmd_t *)alloc_low_page(&phys); -- paravirt_alloc_pmd(&init_mm, __pa(pmd_table) >> PAGE_SHIFT); -- set_pgd(pgd, __pgd(__pa(pmd_table) | _PAGE_PRESENT)); -- pud = pud_offset(pgd, 0); -- BUG_ON(pmd_table != pmd_offset(pud, 0)); -- } --#endif -- pud = pud_offset(pgd, 0); -- pmd_table = pmd_offset(pud, 0); -- -- return pmd_table; --} -- --/* - * Create a page table and place a pointer to it in a middle page - * directory entry: - */ -@@ -132,7 +104,11 @@ static pte_t * __init one_page_table_ini - } - - paravirt_alloc_pte(&init_mm, __pa(page_table) >> PAGE_SHIFT); -+#if defined(CONFIG_PAX_PAGEEXEC) || defined(CONFIG_PAX_SEGMEXEC) -+ set_pmd(pmd, __pmd(__pa(page_table) | _KERNPG_TABLE)); -+#else - set_pmd(pmd, __pmd(__pa(page_table) | _PAGE_TABLE)); -+#endif - BUG_ON(page_table != pte_offset_kernel(pmd, 0)); - } - -@@ -154,6 +130,7 @@ page_table_range_init(unsigned long star - int pgd_idx, pmd_idx; - unsigned long vaddr; - pgd_t *pgd; -+ pud_t *pud; - pmd_t *pmd; - - vaddr = start; -@@ -162,8 +139,13 @@ page_table_range_init(unsigned long star - pgd = pgd_base + pgd_idx; - - for ( ; (pgd_idx < PTRS_PER_PGD) && (vaddr != end); pgd++, pgd_idx++) { -- pmd = one_md_table_init(pgd); -- pmd = pmd + pmd_index(vaddr); -+ pud = pud_offset(pgd, vaddr); -+ pmd = pmd_offset(pud, vaddr); -+ -+#ifdef CONFIG_X86_PAE -+ paravirt_alloc_pmd(&init_mm, __pa(pmd) >> PAGE_SHIFT); -+#endif -+ - for (; (pmd_idx < PTRS_PER_PMD) && (vaddr != end); - pmd++, pmd_idx++) { - one_page_table_init(pmd); -@@ -174,11 +156,23 @@ page_table_range_init(unsigned long star - } - } - --static inline int is_kernel_text(unsigned long addr) -+static inline int is_kernel_text(unsigned long start, unsigned long end) - { -- if (addr >= PAGE_OFFSET && addr <= (unsigned long)__init_end) -- return 1; -- return 0; -+ unsigned long etext; -+ -+#if defined(CONFIG_MODULES) && defined(CONFIG_PAX_KERNEXEC) -+ etext = ktva_ktla((unsigned long)&MODULES_END); -+#else -+ etext = (unsigned long)&_etext; -+#endif -+ -+ if ((start > ktla_ktva(etext) || -+ end <= ktla_ktva((unsigned long)_stext)) && -+ (start > ktla_ktva((unsigned long)_einittext) || -+ end <= ktla_ktva((unsigned long)_sinittext)) && -+ (start > (unsigned long)__va(0xfffff) || end <= (unsigned long)__va(0xc0000))) -+ return 0; -+ return 1; - } - - /* -@@ -191,9 +185,10 @@ static void __init kernel_physical_mappi - unsigned long end_pfn, - int use_pse) - { -- int pgd_idx, pmd_idx, pte_ofs; -+ unsigned int pgd_idx, pmd_idx, pte_ofs; - unsigned long pfn; - pgd_t *pgd; -+ pud_t *pud; - pmd_t *pmd; - pte_t *pte; - unsigned pages_2m, pages_4k; -@@ -223,8 +218,13 @@ repeat: - pfn = start_pfn; - pgd_idx = pgd_index((pfn<<PAGE_SHIFT) + PAGE_OFFSET); - pgd = pgd_base + pgd_idx; -- for (; pgd_idx < PTRS_PER_PGD; pgd++, pgd_idx++) { -- pmd = one_md_table_init(pgd); -+ for (; pgd_idx < PTRS_PER_PGD && pfn < max_low_pfn; pgd++, pgd_idx++) { -+ pud = pud_offset(pgd, 0); -+ pmd = pmd_offset(pud, 0); -+ -+#ifdef CONFIG_X86_PAE -+ paravirt_alloc_pmd(&init_mm, __pa(pmd) >> PAGE_SHIFT); -+#endif - - if (pfn >= end_pfn) - continue; -@@ -236,14 +236,13 @@ repeat: - #endif - for (; pmd_idx < PTRS_PER_PMD && pfn < end_pfn; - pmd++, pmd_idx++) { -- unsigned int addr = pfn * PAGE_SIZE + PAGE_OFFSET; -+ unsigned long address = pfn * PAGE_SIZE + PAGE_OFFSET; - - /* - * Map with big pages if possible, otherwise - * create normal page tables: - */ - if (use_pse) { -- unsigned int addr2; - pgprot_t prot = PAGE_KERNEL_LARGE; - /* - * first pass will use the same initial -@@ -253,11 +252,7 @@ repeat: - __pgprot(PTE_IDENT_ATTR | - _PAGE_PSE); - -- addr2 = (pfn + PTRS_PER_PTE-1) * PAGE_SIZE + -- PAGE_OFFSET + PAGE_SIZE-1; -- -- if (is_kernel_text(addr) || -- is_kernel_text(addr2)) -+ if (is_kernel_text(address, address + PMD_SIZE)) - prot = PAGE_KERNEL_LARGE_EXEC; - - pages_2m++; -@@ -274,7 +269,7 @@ repeat: - pte_ofs = pte_index((pfn<<PAGE_SHIFT) + PAGE_OFFSET); - pte += pte_ofs; - for (; pte_ofs < PTRS_PER_PTE && pfn < end_pfn; -- pte++, pfn++, pte_ofs++, addr += PAGE_SIZE) { -+ pte++, pfn++, pte_ofs++, address += PAGE_SIZE) { - pgprot_t prot = PAGE_KERNEL; - /* - * first pass will use the same initial -@@ -282,7 +277,7 @@ repeat: - */ - pgprot_t init_prot = __pgprot(PTE_IDENT_ATTR); - -- if (is_kernel_text(addr)) -+ if (is_kernel_text(address, address + PAGE_SIZE)) - prot = PAGE_KERNEL_EXEC; - - pages_4k++; -@@ -327,7 +322,9 @@ repeat: - */ - int devmem_is_allowed(unsigned long pagenr) - { -- if (pagenr <= 256) -+ if (!pagenr) -+ return 1; -+ if ((ISA_START_ADDRESS >> PAGE_SHIFT) <= pagenr && pagenr < (ISA_END_ADDRESS >> PAGE_SHIFT)) - return 1; - if (!page_is_ram(pagenr)) - return 1; -@@ -460,7 +457,7 @@ void __init native_pagetable_setup_start - - pud = pud_offset(pgd, va); - pmd = pmd_offset(pud, va); -- if (!pmd_present(*pmd)) -+ if (!pmd_present(*pmd) || pmd_huge(*pmd)) - break; - - pte = pte_offset_kernel(pmd, va); -@@ -512,9 +509,7 @@ static void __init early_ioremap_page_ta - - static void __init pagetable_init(void) - { -- pgd_t *pgd_base = swapper_pg_dir; -- -- permanent_kmaps_init(pgd_base); -+ permanent_kmaps_init(swapper_pg_dir); - } - - #ifdef CONFIG_ACPI_SLEEP -@@ -522,12 +517,12 @@ static void __init pagetable_init(void) - * ACPI suspend needs this for resume, because things like the intel-agp - * driver might have split up a kernel 4MB mapping. - */ --char swsusp_pg_dir[PAGE_SIZE] -+pgd_t swsusp_pg_dir[PTRS_PER_PGD] - __attribute__ ((aligned(PAGE_SIZE))); - - static inline void save_pg_dir(void) - { -- memcpy(swsusp_pg_dir, swapper_pg_dir, PAGE_SIZE); -+ clone_pgd_range(swsusp_pg_dir, swapper_pg_dir, PTRS_PER_PGD); - } - #else /* !CONFIG_ACPI_SLEEP */ - static inline void save_pg_dir(void) -@@ -557,13 +552,11 @@ void zap_low_mappings(void) - - int nx_enabled; - --pteval_t __supported_pte_mask __read_mostly = ~(_PAGE_NX | _PAGE_GLOBAL | _PAGE_IOMAP); -+pteval_t __supported_pte_mask __read_only = ~(_PAGE_NX | _PAGE_GLOBAL | _PAGE_IOMAP); - EXPORT_SYMBOL_GPL(__supported_pte_mask); - - #ifdef CONFIG_X86_PAE - --static int disable_nx __initdata; -- - /* - * noexec = on|off - * -@@ -572,40 +565,33 @@ static int disable_nx __initdata; - * on Enable - * off Disable - */ -+#if !defined(CONFIG_PAX_PAGEEXEC) - static int __init noexec_setup(char *str) - { - if (!str || !strcmp(str, "on")) { -- if (cpu_has_nx) { -- __supported_pte_mask |= _PAGE_NX; -- disable_nx = 0; -- } -+ if (cpu_has_nx) -+ nx_enabled = 1; - } else { -- if (!strcmp(str, "off")) { -- disable_nx = 1; -- __supported_pte_mask &= ~_PAGE_NX; -- } else { -+ if (!strcmp(str, "off")) -+ nx_enabled = 0; -+ else - return -EINVAL; -- } - } - - return 0; - } - early_param("noexec", noexec_setup); -+#endif - - static void __init set_nx(void) - { -- unsigned int v[4], l, h; -- -- if (cpu_has_pae && (cpuid_eax(0x80000000) > 0x80000001)) { -- cpuid(0x80000001, &v[0], &v[1], &v[2], &v[3]); -+ if (!nx_enabled && cpu_has_nx) { -+ unsigned l, h; - -- if ((v[3] & (1 << 20)) && !disable_nx) { -- rdmsr(MSR_EFER, l, h); -- l |= EFER_NX; -- wrmsr(MSR_EFER, l, h); -- nx_enabled = 1; -- __supported_pte_mask |= _PAGE_NX; -- } -+ __supported_pte_mask &= ~_PAGE_NX; -+ rdmsr(MSR_EFER, l, h); -+ l &= ~EFER_NX; -+ wrmsr(MSR_EFER, l, h); - } - } - #endif -@@ -988,7 +974,7 @@ void __init mem_init(void) - set_highmem_pages_init(); - - codesize = (unsigned long) &_etext - (unsigned long) &_text; -- datasize = (unsigned long) &_edata - (unsigned long) &_etext; -+ datasize = (unsigned long) &_edata - (unsigned long) &_data; - initsize = (unsigned long) &__init_end - (unsigned long) &__init_begin; - - kclist_add(&kcore_mem, __va(0), max_low_pfn << PAGE_SHIFT); -@@ -1034,10 +1020,10 @@ void __init mem_init(void) - ((unsigned long)&__init_end - - (unsigned long)&__init_begin) >> 10, - -- (unsigned long)&_etext, (unsigned long)&_edata, -- ((unsigned long)&_edata - (unsigned long)&_etext) >> 10, -+ (unsigned long)&_data, (unsigned long)&_edata, -+ ((unsigned long)&_edata - (unsigned long)&_data) >> 10, - -- (unsigned long)&_text, (unsigned long)&_etext, -+ ktla_ktva((unsigned long)&_text), ktla_ktva((unsigned long)&_etext), - ((unsigned long)&_etext - (unsigned long)&_text) >> 10); - - #ifdef CONFIG_HIGHMEM -@@ -1166,6 +1152,46 @@ void free_init_pages(char *what, unsigne - - void free_initmem(void) - { -+ -+#ifdef CONFIG_PAX_KERNEXEC -+ /* PaX: limit KERNEL_CS to actual size */ -+ unsigned long addr, limit; -+ struct desc_struct d; -+ int cpu; -+ pgd_t *pgd; -+ pud_t *pud; -+ pmd_t *pmd; -+ -+#ifdef CONFIG_MODULES -+ limit = ktva_ktla((unsigned long)&MODULES_END); -+#else -+ limit = (unsigned long)&_etext; -+#endif -+ limit = (limit - 1UL) >> PAGE_SHIFT; -+ -+ for (cpu = 0; cpu < NR_CPUS; cpu++) { -+ pack_descriptor(&d, get_desc_base(&get_cpu_gdt_table(cpu)[GDT_ENTRY_KERNEL_CS]), limit, 0x9B, 0xC); -+ write_gdt_entry(get_cpu_gdt_table(cpu), GDT_ENTRY_KERNEL_CS, &d, DESCTYPE_S); -+ } -+ -+ /* PaX: make KERNEL_CS read-only */ -+ for (addr = ktla_ktva((unsigned long)&_text); addr < (unsigned long)&_data; addr += PMD_SIZE) { -+ pgd = pgd_offset_k(addr); -+ pud = pud_offset(pgd, addr); -+ pmd = pmd_offset(pud, addr); -+ set_pmd(pmd, __pmd(pmd_val(*pmd) & ~_PAGE_RW)); -+ } -+#ifdef CONFIG_X86_PAE -+ for (addr = (unsigned long)&__init_begin; addr < (unsigned long)&__init_end; addr += PMD_SIZE) { -+ pgd = pgd_offset_k(addr); -+ pud = pud_offset(pgd, addr); -+ pmd = pmd_offset(pud, addr); -+ set_pmd(pmd, __pmd(pmd_val(*pmd) | (_PAGE_NX & __supported_pte_mask))); -+ } -+#endif -+ flush_tlb_all(); -+#endif -+ - free_init_pages("unused kernel memory", - (unsigned long)(&__init_begin), - (unsigned long)(&__init_end)); -diff -urNp linux-2.6.28.8/arch/x86/mm/init_64.c linux-2.6.28.8/arch/x86/mm/init_64.c ---- linux-2.6.28.8/arch/x86/mm/init_64.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/x86/mm/init_64.c 2009-02-21 09:37:48.000000000 -0500 -@@ -175,6 +175,10 @@ set_pte_vaddr_pud(pud_t *pud_page, unsig - pmd_t *pmd; - pte_t *pte; - -+#ifdef CONFIG_PAX_KERNEXEC -+ unsigned long cr0; -+#endif -+ - pud = pud_page + pud_index(vaddr); - if (pud_none(*pud)) { - pmd = (pmd_t *) spp_getpage(); -@@ -196,8 +200,17 @@ set_pte_vaddr_pud(pud_t *pud_page, unsig - } - - pte = pte_offset_kernel(pmd, vaddr); -+ -+#ifdef CONFIG_PAX_KERNEXEC -+ pax_open_kernel(cr0); -+#endif -+ - set_pte(pte, new_pte); - -+#ifdef CONFIG_PAX_KERNEXEC -+ pax_close_kernel(cr0); -+#endif -+ - /* - * It's enough to flush this one mapping. - * (PGE mappings get flushed as well) -@@ -238,14 +251,12 @@ static void __init __init_extra_mapping( - pgd = pgd_offset_k((unsigned long)__va(phys)); - if (pgd_none(*pgd)) { - pud = (pud_t *) spp_getpage(); -- set_pgd(pgd, __pgd(__pa(pud) | _KERNPG_TABLE | -- _PAGE_USER)); -+ set_pgd(pgd, __pgd(__pa(pud) | _PAGE_TABLE)); - } - pud = pud_offset(pgd, (unsigned long)__va(phys)); - if (pud_none(*pud)) { - pmd = (pmd_t *) spp_getpage(); -- set_pud(pud, __pud(__pa(pmd) | _KERNPG_TABLE | -- _PAGE_USER)); -+ set_pud(pud, __pud(__pa(pmd) | _PAGE_TABLE)); - } - pmd = pmd_offset(pud, phys); - BUG_ON(!pmd_none(*pmd)); -@@ -886,7 +897,9 @@ EXPORT_SYMBOL_GPL(memory_add_physaddr_to - */ - int devmem_is_allowed(unsigned long pagenr) - { -- if (pagenr <= 256) -+ if (!pagenr) -+ return 1; -+ if ((ISA_START_ADDRESS >> PAGE_SHIFT) <= pagenr && pagenr < (ISA_END_ADDRESS >> PAGE_SHIFT)) - return 1; - if (!page_is_ram(pagenr)) - return 1; -@@ -977,6 +990,39 @@ void free_init_pages(char *what, unsigne - - void free_initmem(void) - { -+ -+#ifdef CONFIG_PAX_KERNEXEC -+ unsigned long addr, end; -+ pgd_t *pgd; -+ pud_t *pud; -+ pmd_t *pmd; -+ -+ /* PaX: make kernel code/rodata read-only, rest non-executable */ -+ for (addr = __START_KERNEL_map; addr < __START_KERNEL_map + KERNEL_IMAGE_SIZE; addr += PMD_SIZE) { -+ pgd = pgd_offset_k(addr); -+ pud = pud_offset(pgd, addr); -+ pmd = pmd_offset(pud, addr); -+ if ((unsigned long)_text <= addr && addr < (unsigned long)_data) -+ set_pmd(pmd, __pmd(pmd_val(*pmd) & ~_PAGE_RW)); -+ else -+ set_pmd(pmd, __pmd(pmd_val(*pmd) | (_PAGE_NX & __supported_pte_mask))); -+ } -+ -+ addr = (unsigned long)__va(__pa(__START_KERNEL_map)); -+ end = addr + KERNEL_IMAGE_SIZE; -+ for (; addr < end; addr += PMD_SIZE) { -+ pgd = pgd_offset_k(addr); -+ pud = pud_offset(pgd, addr); -+ pmd = pmd_offset(pud, addr); -+ if ((unsigned long)__va(__pa(_text)) <= addr && addr < (unsigned long)__va(__pa(_data))) -+ set_pmd(pmd, __pmd(pmd_val(*pmd) & ~_PAGE_RW)); -+ else -+ set_pmd(pmd, __pmd(pmd_val(*pmd) | (_PAGE_NX & __supported_pte_mask))); -+ } -+ -+ flush_tlb_all(); -+#endif -+ - free_init_pages("unused kernel memory", - (unsigned long)(&__init_begin), - (unsigned long)(&__init_end)); -@@ -1149,7 +1195,7 @@ int in_gate_area_no_task(unsigned long a - - const char *arch_vma_name(struct vm_area_struct *vma) - { -- if (vma->vm_mm && vma->vm_start == (long)vma->vm_mm->context.vdso) -+ if (vma->vm_mm && vma->vm_start == vma->vm_mm->context.vdso) - return "[vdso]"; - if (vma == &gate_vma) - return "[vsyscall]"; -diff -urNp linux-2.6.28.8/arch/x86/mm/ioremap.c linux-2.6.28.8/arch/x86/mm/ioremap.c ---- linux-2.6.28.8/arch/x86/mm/ioremap.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/x86/mm/ioremap.c 2009-02-21 09:37:48.000000000 -0500 -@@ -114,8 +114,8 @@ int page_is_ram(unsigned long pagenr) - * Second special case: Some BIOSen report the PC BIOS - * area (640->1Mb) as ram even though it is not. - */ -- if (pagenr >= (BIOS_BEGIN >> PAGE_SHIFT) && -- pagenr < (BIOS_END >> PAGE_SHIFT)) -+ if (pagenr >= (ISA_START_ADDRESS >> PAGE_SHIFT) && -+ pagenr < (ISA_END_ADDRESS >> PAGE_SHIFT)) - return 0; - - for (i = 0; i < e820.nr_map; i++) { -@@ -293,6 +293,8 @@ static void __iomem *__ioremap_caller(re - break; - } - -+ prot = canon_pgprot(prot); -+ - /* - * Ok, go for it.. - */ -@@ -508,7 +510,7 @@ static int __init early_ioremap_debug_se - early_param("early_ioremap_debug", early_ioremap_debug_setup); - - static __initdata int after_paging_init; --static pte_t bm_pte[PAGE_SIZE/sizeof(pte_t)] __page_aligned_bss; -+static __initdata pte_t bm_pte[PAGE_SIZE/sizeof(pte_t)] __aligned(PAGE_SIZE); - - static inline pmd_t * __init early_ioremap_pmd(unsigned long addr) - { -@@ -523,7 +525,11 @@ static inline pmd_t * __init early_iorem - - static inline pte_t * __init early_ioremap_pte(unsigned long addr) - { -+#ifdef CONFIG_X86_32 - return &bm_pte[pte_index(addr)]; -+#else -+ return &level1_fixmap_pgt[pte_index(addr)]; -+#endif - } - - void __init early_ioremap_init(void) -@@ -534,8 +540,10 @@ void __init early_ioremap_init(void) - printk(KERN_INFO "early_ioremap_init()\n"); - - pmd = early_ioremap_pmd(fix_to_virt(FIX_BTMAP_BEGIN)); -+#ifdef CONFIG_X86_32 - memset(bm_pte, 0, sizeof(bm_pte)); - pmd_populate_kernel(&init_mm, pmd, bm_pte); -+#endif - - /* - * The boot-ioremap range spans multiple pmds, for which -diff -urNp linux-2.6.28.8/arch/x86/mm/mmap.c linux-2.6.28.8/arch/x86/mm/mmap.c ---- linux-2.6.28.8/arch/x86/mm/mmap.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/x86/mm/mmap.c 2009-02-21 09:37:48.000000000 -0500 -@@ -36,7 +36,7 @@ - * Leave an at least ~128 MB hole. - */ - #define MIN_GAP (128*1024*1024) --#define MAX_GAP (TASK_SIZE/6*5) -+#define MAX_GAP (pax_task_size/6*5) - - /* - * True on X86_32 or when emulating IA32 on X86_64 -@@ -81,27 +81,40 @@ static unsigned long mmap_rnd(void) - return rnd << PAGE_SHIFT; - } - --static unsigned long mmap_base(void) -+static unsigned long mmap_base(struct mm_struct *mm) - { - unsigned long gap = current->signal->rlim[RLIMIT_STACK].rlim_cur; -+ unsigned long pax_task_size = TASK_SIZE; -+ -+#ifdef CONFIG_PAX_SEGMEXEC -+ if (mm->pax_flags & MF_PAX_SEGMEXEC) -+ pax_task_size = SEGMEXEC_TASK_SIZE; -+#endif - - if (gap < MIN_GAP) - gap = MIN_GAP; - else if (gap > MAX_GAP) - gap = MAX_GAP; - -- return PAGE_ALIGN(TASK_SIZE - gap - mmap_rnd()); -+ return PAGE_ALIGN(pax_task_size - gap - mmap_rnd()); - } - - /* - * Bottom-up (legacy) layout on X86_32 did not support randomization, X86_64 - * does, but not when emulating X86_32 - */ --static unsigned long mmap_legacy_base(void) -+static unsigned long mmap_legacy_base(struct mm_struct *mm) - { -- if (mmap_is_ia32()) -+ if (mmap_is_ia32()) { -+ -+#ifdef CONFIG_PAX_SEGMEXEC -+ if (mm->pax_flags & MF_PAX_SEGMEXEC) -+ return SEGMEXEC_TASK_UNMAPPED_BASE; -+ else -+#endif -+ - return TASK_UNMAPPED_BASE; -- else -+ } else - return TASK_UNMAPPED_BASE + mmap_rnd(); - } - -@@ -112,11 +125,23 @@ static unsigned long mmap_legacy_base(vo - void arch_pick_mmap_layout(struct mm_struct *mm) - { - if (mmap_is_legacy()) { -- mm->mmap_base = mmap_legacy_base(); -+ mm->mmap_base = mmap_legacy_base(mm); -+ -+#ifdef CONFIG_PAX_RANDMMAP -+ if (mm->pax_flags & MF_PAX_RANDMMAP) -+ mm->mmap_base += mm->delta_mmap; -+#endif -+ - mm->get_unmapped_area = arch_get_unmapped_area; - mm->unmap_area = arch_unmap_area; - } else { -- mm->mmap_base = mmap_base(); -+ mm->mmap_base = mmap_base(mm); -+ -+#ifdef CONFIG_PAX_RANDMMAP -+ if (mm->pax_flags & MF_PAX_RANDMMAP) -+ mm->mmap_base -= mm->delta_mmap + mm->delta_stack; -+#endif -+ - mm->get_unmapped_area = arch_get_unmapped_area_topdown; - mm->unmap_area = arch_unmap_area_topdown; - } -diff -urNp linux-2.6.28.8/arch/x86/mm/numa_32.c linux-2.6.28.8/arch/x86/mm/numa_32.c ---- linux-2.6.28.8/arch/x86/mm/numa_32.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/x86/mm/numa_32.c 2009-02-21 09:37:48.000000000 -0500 -@@ -98,7 +98,6 @@ unsigned long node_memmap_size_bytes(int - } - #endif - --extern unsigned long find_max_low_pfn(void); - extern unsigned long highend_pfn, highstart_pfn; - - #define LARGE_PAGE_BYTES (PTRS_PER_PTE * PAGE_SIZE) -diff -urNp linux-2.6.28.8/arch/x86/mm/pageattr.c linux-2.6.28.8/arch/x86/mm/pageattr.c ---- linux-2.6.28.8/arch/x86/mm/pageattr.c 2009-02-20 22:26:38.000000000 -0500 -+++ linux-2.6.28.8/arch/x86/mm/pageattr.c 2009-02-21 09:37:48.000000000 -0500 -@@ -20,6 +20,7 @@ - #include <asm/pgalloc.h> - #include <asm/proto.h> - #include <asm/pat.h> -+#include <asm/desc.h> - - /* - * The current flushing context - we pass it instead of 5 arguments: -@@ -259,7 +260,7 @@ static inline pgprot_t static_protection - * Does not cover __inittext since that is gone later on. On - * 64bit we do not enforce !NX on the low mapping - */ -- if (within(address, (unsigned long)_text, (unsigned long)_etext)) -+ if (within(address, ktla_ktva((unsigned long)_text), ktla_ktva((unsigned long)_etext))) - pgprot_val(forbidden) |= _PAGE_NX; - - /* -@@ -321,8 +322,20 @@ EXPORT_SYMBOL_GPL(lookup_address); - */ - static void __set_pmd_pte(pte_t *kpte, unsigned long address, pte_t pte) - { -+ -+#ifdef CONFIG_PAX_KERNEXEC -+ unsigned long cr0; -+ -+ pax_open_kernel(cr0); -+#endif -+ - /* change init_mm */ - set_pte_atomic(kpte, pte); -+ -+#ifdef CONFIG_PAX_KERNEXEC -+ pax_close_kernel(cr0); -+#endif -+ - #ifdef CONFIG_X86_32 - if (!SHARED_KERNEL_PMD) { - struct page *page; -diff -urNp linux-2.6.28.8/arch/x86/mm/pageattr-test.c linux-2.6.28.8/arch/x86/mm/pageattr-test.c ---- linux-2.6.28.8/arch/x86/mm/pageattr-test.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/x86/mm/pageattr-test.c 2009-03-07 10:35:39.000000000 -0500 -@@ -36,7 +36,7 @@ enum { - - static int pte_testbit(pte_t pte) - { -- return pte_flags(pte) & _PAGE_UNUSED1; -+ return pte_flags(pte) & _PAGE_CPA_TEST; - } - - struct split_state { -diff -urNp linux-2.6.28.8/arch/x86/mm/pat.c linux-2.6.28.8/arch/x86/mm/pat.c ---- linux-2.6.28.8/arch/x86/mm/pat.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/x86/mm/pat.c 2009-03-07 14:05:58.000000000 -0500 -@@ -491,7 +491,7 @@ pgprot_t phys_mem_access_prot(struct fil - return vma_prot; - } - --#ifdef CONFIG_STRICT_DEVMEM -+#ifndef CONFIG_STRICT_DEVMEM - /* This check is done in drivers/char/mem.c in case of STRICT_DEVMEM*/ - static inline int range_is_allowed(unsigned long pfn, unsigned long size) - { -diff -urNp linux-2.6.28.8/arch/x86/mm/pgtable_32.c linux-2.6.28.8/arch/x86/mm/pgtable_32.c ---- linux-2.6.28.8/arch/x86/mm/pgtable_32.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/x86/mm/pgtable_32.c 2009-02-21 09:37:48.000000000 -0500 -@@ -31,6 +31,10 @@ void set_pte_vaddr(unsigned long vaddr, - pmd_t *pmd; - pte_t *pte; - -+#ifdef CONFIG_PAX_KERNEXEC -+ unsigned long cr0; -+#endif -+ - pgd = swapper_pg_dir + pgd_index(vaddr); - if (pgd_none(*pgd)) { - BUG(); -@@ -47,11 +51,20 @@ void set_pte_vaddr(unsigned long vaddr, - return; - } - pte = pte_offset_kernel(pmd, vaddr); -+ -+#ifdef CONFIG_PAX_KERNEXEC -+ pax_open_kernel(cr0); -+#endif -+ - if (pte_val(pteval)) - set_pte_present(&init_mm, vaddr, pte, pteval); - else - pte_clear(&init_mm, vaddr, pte); - -+#ifdef CONFIG_PAX_KERNEXEC -+ pax_close_kernel(cr0); -+#endif -+ - /* - * It's enough to flush this one mapping. - * (PGE mappings get flushed as well) -diff -urNp linux-2.6.28.8/arch/x86/oprofile/backtrace.c linux-2.6.28.8/arch/x86/oprofile/backtrace.c ---- linux-2.6.28.8/arch/x86/oprofile/backtrace.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/x86/oprofile/backtrace.c 2009-02-21 09:37:48.000000000 -0500 -@@ -37,7 +37,7 @@ static void backtrace_address(void *data - unsigned int *depth = data; - - if ((*depth)--) -- oprofile_add_trace(addr); -+ oprofile_add_trace(ktla_ktva(addr)); - } - - static struct stacktrace_ops backtrace_ops = { -@@ -78,7 +78,7 @@ x86_backtrace(struct pt_regs * const reg - struct frame_head *head = (struct frame_head *)frame_pointer(regs); - unsigned long stack = kernel_trap_sp(regs); - -- if (!user_mode_vm(regs)) { -+ if (!user_mode(regs)) { - if (depth) - dump_trace(NULL, regs, (unsigned long *)stack, 0, - &backtrace_ops, &depth); -diff -urNp linux-2.6.28.8/arch/x86/oprofile/op_model_p4.c linux-2.6.28.8/arch/x86/oprofile/op_model_p4.c ---- linux-2.6.28.8/arch/x86/oprofile/op_model_p4.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/x86/oprofile/op_model_p4.c 2009-02-21 09:37:48.000000000 -0500 -@@ -48,7 +48,7 @@ static inline void setup_num_counters(vo - #endif - } - --static int inline addr_increment(void) -+static inline int addr_increment(void) - { - #ifdef CONFIG_SMP - return smp_num_siblings == 2 ? 2 : 1; -diff -urNp linux-2.6.28.8/arch/x86/pci/common.c linux-2.6.28.8/arch/x86/pci/common.c ---- linux-2.6.28.8/arch/x86/pci/common.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/x86/pci/common.c 2009-02-21 09:37:48.000000000 -0500 -@@ -362,7 +362,7 @@ static struct dmi_system_id __devinitdat - DMI_MATCH(DMI_PRODUCT_NAME, "ProLiant DL585 G2"), - }, - }, -- {} -+ { NULL, NULL, {DMI_MATCH(DMI_NONE, {0})}, NULL} - }; - - void __init dmi_check_pciprobe(void) -diff -urNp linux-2.6.28.8/arch/x86/pci/fixup.c linux-2.6.28.8/arch/x86/pci/fixup.c ---- linux-2.6.28.8/arch/x86/pci/fixup.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/x86/pci/fixup.c 2009-02-21 09:37:48.000000000 -0500 -@@ -365,7 +365,7 @@ static struct dmi_system_id __devinitdat - DMI_MATCH(DMI_PRODUCT_NAME, "MS-6702E"), - }, - }, -- {} -+ { NULL, NULL, {DMI_MATCH(DMI_NONE, {0})}, NULL } - }; - - /* -@@ -436,7 +436,7 @@ static struct dmi_system_id __devinitdat - DMI_MATCH(DMI_PRODUCT_VERSION, "PSA40U"), - }, - }, -- { } -+ { NULL, NULL, {DMI_MATCH(DMI_NONE, {0})}, NULL } - }; - - static void __devinit pci_pre_fixup_toshiba_ohci1394(struct pci_dev *dev) -diff -urNp linux-2.6.28.8/arch/x86/pci/irq.c linux-2.6.28.8/arch/x86/pci/irq.c ---- linux-2.6.28.8/arch/x86/pci/irq.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/x86/pci/irq.c 2009-02-21 09:37:48.000000000 -0500 -@@ -544,7 +544,7 @@ static __init int intel_router_probe(str - static struct pci_device_id __initdata pirq_440gx[] = { - { PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82443GX_0) }, - { PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82443GX_2) }, -- { }, -+ { PCI_DEVICE(0, 0) } - }; - - /* 440GX has a proprietary PIRQ router -- don't use it */ -@@ -1148,7 +1148,7 @@ static struct dmi_system_id __initdata p - DMI_MATCH(DMI_PRODUCT_NAME, "TravelMate 360"), - }, - }, -- { } -+ { NULL, NULL, {DMI_MATCH(DMI_NONE, {0})}, NULL } - }; - - int __init pcibios_irq_init(void) -diff -urNp linux-2.6.28.8/arch/x86/pci/pcbios.c linux-2.6.28.8/arch/x86/pci/pcbios.c ---- linux-2.6.28.8/arch/x86/pci/pcbios.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/x86/pci/pcbios.c 2009-02-21 09:37:48.000000000 -0500 -@@ -57,50 +57,120 @@ union bios32 { - static struct { - unsigned long address; - unsigned short segment; --} bios32_indirect = { 0, __KERNEL_CS }; -+} bios32_indirect __read_only = { 0, __PCIBIOS_CS }; - - /* - * Returns the entry point for the given service, NULL on error - */ - --static unsigned long bios32_service(unsigned long service) -+static unsigned long __devinit bios32_service(unsigned long service) - { - unsigned char return_code; /* %al */ - unsigned long address; /* %ebx */ - unsigned long length; /* %ecx */ - unsigned long entry; /* %edx */ - unsigned long flags; -+ struct desc_struct d, *gdt; -+ -+#ifdef CONFIG_PAX_KERNEXEC -+ unsigned long cr0; -+#endif - - local_irq_save(flags); -- __asm__("lcall *(%%edi); cld" -+ -+ gdt = get_cpu_gdt_table(smp_processor_id()); -+ -+#ifdef CONFIG_PAX_KERNEXEC -+ pax_open_kernel(cr0); -+#endif -+ -+ pack_descriptor(&d, 0UL, 0xFFFFFUL, 0x9B, 0xC); -+ write_gdt_entry(gdt, GDT_ENTRY_PCIBIOS_CS, &d, DESCTYPE_S); -+ pack_descriptor(&d, 0UL, 0xFFFFFUL, 0x93, 0xC); -+ write_gdt_entry(gdt, GDT_ENTRY_PCIBIOS_DS, &d, DESCTYPE_S); -+ -+#ifdef CONFIG_PAX_KERNEXEC -+ pax_close_kernel(cr0); -+#endif -+ -+ __asm__("movw %w7, %%ds; lcall *(%%edi); push %%ss; pop %%ds; cld" - : "=a" (return_code), - "=b" (address), - "=c" (length), - "=d" (entry) - : "0" (service), - "1" (0), -- "D" (&bios32_indirect)); -+ "D" (&bios32_indirect), -+ "r"(__PCIBIOS_DS) -+ : "memory"); -+ -+#ifdef CONFIG_PAX_KERNEXEC -+ pax_open_kernel(cr0); -+#endif -+ -+ gdt[GDT_ENTRY_PCIBIOS_CS].a = 0; -+ gdt[GDT_ENTRY_PCIBIOS_CS].b = 0; -+ gdt[GDT_ENTRY_PCIBIOS_DS].a = 0; -+ gdt[GDT_ENTRY_PCIBIOS_DS].b = 0; -+ -+#ifdef CONFIG_PAX_KERNEXEC -+ pax_close_kernel(cr0); -+#endif -+ - local_irq_restore(flags); - - switch (return_code) { -- case 0: -- return address + entry; -- case 0x80: /* Not present */ -- printk(KERN_WARNING "bios32_service(0x%lx): not present\n", service); -- return 0; -- default: /* Shouldn't happen */ -- printk(KERN_WARNING "bios32_service(0x%lx): returned 0x%x -- BIOS bug!\n", -- service, return_code); -+ case 0: { -+ int cpu; -+ unsigned char flags; -+ -+ printk(KERN_INFO "bios32_service: base:%08lx length:%08lx entry:%08lx\n", address, length, entry); -+ if (address >= 0xFFFF0 || length > 0x100000 - address || length <= entry) { -+ printk(KERN_WARNING "bios32_service: not valid\n"); - return 0; -+ } -+ address = address + PAGE_OFFSET; -+ length += 16UL; /* some BIOSs underreport this... */ -+ flags = 4; -+ if (length >= 64*1024*1024) { -+ length >>= PAGE_SHIFT; -+ flags |= 8; -+ } -+ -+#ifdef CONFIG_PAX_KERNEXEC -+ pax_open_kernel(cr0); -+#endif -+ -+ for (cpu = 0; cpu < NR_CPUS; cpu++) { -+ gdt = get_cpu_gdt_table(cpu); -+ pack_descriptor(&d, address, length, 0x9b, flags); -+ write_gdt_entry(gdt, GDT_ENTRY_PCIBIOS_CS, &d, DESCTYPE_S); -+ pack_descriptor(&d, address, length, 0x93, flags); -+ write_gdt_entry(gdt, GDT_ENTRY_PCIBIOS_DS, &d, DESCTYPE_S); -+ } -+ -+#ifdef CONFIG_PAX_KERNEXEC -+ pax_close_kernel(cr0); -+#endif -+ -+ return entry; -+ } -+ case 0x80: /* Not present */ -+ printk(KERN_WARNING "bios32_service(0x%lx): not present\n", service); -+ return 0; -+ default: /* Shouldn't happen */ -+ printk(KERN_WARNING "bios32_service(0x%lx): returned 0x%x -- BIOS bug!\n", -+ service, return_code); -+ return 0; - } - } - - static struct { - unsigned long address; - unsigned short segment; --} pci_indirect = { 0, __KERNEL_CS }; -+} pci_indirect __read_only = { 0, __PCIBIOS_CS }; - --static int pci_bios_present; -+static int pci_bios_present __read_only; - - static int __devinit check_pcibios(void) - { -@@ -109,11 +179,13 @@ static int __devinit check_pcibios(void) - unsigned long flags, pcibios_entry; - - if ((pcibios_entry = bios32_service(PCI_SERVICE))) { -- pci_indirect.address = pcibios_entry + PAGE_OFFSET; -+ pci_indirect.address = pcibios_entry; - - local_irq_save(flags); -- __asm__( -- "lcall *(%%edi); cld\n\t" -+ __asm__("movw %w6, %%ds\n\t" -+ "lcall *%%ss:(%%edi); cld\n\t" -+ "push %%ss\n\t" -+ "pop %%ds\n\t" - "jc 1f\n\t" - "xor %%ah, %%ah\n" - "1:" -@@ -122,7 +194,8 @@ static int __devinit check_pcibios(void) - "=b" (ebx), - "=c" (ecx) - : "1" (PCIBIOS_PCI_BIOS_PRESENT), -- "D" (&pci_indirect) -+ "D" (&pci_indirect), -+ "r" (__PCIBIOS_DS) - : "memory"); - local_irq_restore(flags); - -@@ -166,7 +239,10 @@ static int pci_bios_read(unsigned int se - - switch (len) { - case 1: -- __asm__("lcall *(%%esi); cld\n\t" -+ __asm__("movw %w6, %%ds\n\t" -+ "lcall *%%ss:(%%esi); cld\n\t" -+ "push %%ss\n\t" -+ "pop %%ds\n\t" - "jc 1f\n\t" - "xor %%ah, %%ah\n" - "1:" -@@ -175,7 +251,8 @@ static int pci_bios_read(unsigned int se - : "1" (PCIBIOS_READ_CONFIG_BYTE), - "b" (bx), - "D" ((long)reg), -- "S" (&pci_indirect)); -+ "S" (&pci_indirect), -+ "r" (__PCIBIOS_DS)); - /* - * Zero-extend the result beyond 8 bits, do not trust the - * BIOS having done it: -@@ -183,7 +260,10 @@ static int pci_bios_read(unsigned int se - *value &= 0xff; - break; - case 2: -- __asm__("lcall *(%%esi); cld\n\t" -+ __asm__("movw %w6, %%ds\n\t" -+ "lcall *%%ss:(%%esi); cld\n\t" -+ "push %%ss\n\t" -+ "pop %%ds\n\t" - "jc 1f\n\t" - "xor %%ah, %%ah\n" - "1:" -@@ -192,7 +272,8 @@ static int pci_bios_read(unsigned int se - : "1" (PCIBIOS_READ_CONFIG_WORD), - "b" (bx), - "D" ((long)reg), -- "S" (&pci_indirect)); -+ "S" (&pci_indirect), -+ "r" (__PCIBIOS_DS)); - /* - * Zero-extend the result beyond 16 bits, do not trust the - * BIOS having done it: -@@ -200,7 +281,10 @@ static int pci_bios_read(unsigned int se - *value &= 0xffff; - break; - case 4: -- __asm__("lcall *(%%esi); cld\n\t" -+ __asm__("movw %w6, %%ds\n\t" -+ "lcall *%%ss:(%%esi); cld\n\t" -+ "push %%ss\n\t" -+ "pop %%ds\n\t" - "jc 1f\n\t" - "xor %%ah, %%ah\n" - "1:" -@@ -209,7 +293,8 @@ static int pci_bios_read(unsigned int se - : "1" (PCIBIOS_READ_CONFIG_DWORD), - "b" (bx), - "D" ((long)reg), -- "S" (&pci_indirect)); -+ "S" (&pci_indirect), -+ "r" (__PCIBIOS_DS)); - break; - } - -@@ -232,7 +317,10 @@ static int pci_bios_write(unsigned int s - - switch (len) { - case 1: -- __asm__("lcall *(%%esi); cld\n\t" -+ __asm__("movw %w6, %%ds\n\t" -+ "lcall *%%ss:(%%esi); cld\n\t" -+ "push %%ss\n\t" -+ "pop %%ds\n\t" - "jc 1f\n\t" - "xor %%ah, %%ah\n" - "1:" -@@ -241,10 +329,14 @@ static int pci_bios_write(unsigned int s - "c" (value), - "b" (bx), - "D" ((long)reg), -- "S" (&pci_indirect)); -+ "S" (&pci_indirect), -+ "r" (__PCIBIOS_DS)); - break; - case 2: -- __asm__("lcall *(%%esi); cld\n\t" -+ __asm__("movw %w6, %%ds\n\t" -+ "lcall *%%ss:(%%esi); cld\n\t" -+ "push %%ss\n\t" -+ "pop %%ds\n\t" - "jc 1f\n\t" - "xor %%ah, %%ah\n" - "1:" -@@ -253,10 +345,14 @@ static int pci_bios_write(unsigned int s - "c" (value), - "b" (bx), - "D" ((long)reg), -- "S" (&pci_indirect)); -+ "S" (&pci_indirect), -+ "r" (__PCIBIOS_DS)); - break; - case 4: -- __asm__("lcall *(%%esi); cld\n\t" -+ __asm__("movw %w6, %%ds\n\t" -+ "lcall *%%ss:(%%esi); cld\n\t" -+ "push %%ss\n\t" -+ "pop %%ds\n\t" - "jc 1f\n\t" - "xor %%ah, %%ah\n" - "1:" -@@ -265,7 +361,8 @@ static int pci_bios_write(unsigned int s - "c" (value), - "b" (bx), - "D" ((long)reg), -- "S" (&pci_indirect)); -+ "S" (&pci_indirect), -+ "r" (__PCIBIOS_DS)); - break; - } - -@@ -369,10 +466,13 @@ struct irq_routing_table * pcibios_get_i - - DBG("PCI: Fetching IRQ routing table... "); - __asm__("push %%es\n\t" -+ "movw %w8, %%ds\n\t" - "push %%ds\n\t" - "pop %%es\n\t" -- "lcall *(%%esi); cld\n\t" -+ "lcall *%%ss:(%%esi); cld\n\t" - "pop %%es\n\t" -+ "push %%ss\n\t" -+ "pop %%ds\n" - "jc 1f\n\t" - "xor %%ah, %%ah\n" - "1:" -@@ -383,7 +483,8 @@ struct irq_routing_table * pcibios_get_i - "1" (0), - "D" ((long) &opt), - "S" (&pci_indirect), -- "m" (opt) -+ "m" (opt), -+ "r" (__PCIBIOS_DS) - : "memory"); - DBG("OK ret=%d, size=%d, map=%x\n", ret, opt.size, map); - if (ret & 0xff00) -@@ -407,7 +508,10 @@ int pcibios_set_irq_routing(struct pci_d - { - int ret; - -- __asm__("lcall *(%%esi); cld\n\t" -+ __asm__("movw %w5, %%ds\n\t" -+ "lcall *%%ss:(%%esi); cld\n\t" -+ "push %%ss\n\t" -+ "pop %%ds\n" - "jc 1f\n\t" - "xor %%ah, %%ah\n" - "1:" -@@ -415,7 +519,8 @@ int pcibios_set_irq_routing(struct pci_d - : "0" (PCIBIOS_SET_PCI_HW_INT), - "b" ((dev->bus->number << 8) | dev->devfn), - "c" ((irq << 8) | (pin + 10)), -- "S" (&pci_indirect)); -+ "S" (&pci_indirect), -+ "r" (__PCIBIOS_DS)); - return !(ret & 0xff00); - } - EXPORT_SYMBOL(pcibios_set_irq_routing); -diff -urNp linux-2.6.28.8/arch/x86/power/cpu_32.c linux-2.6.28.8/arch/x86/power/cpu_32.c ---- linux-2.6.28.8/arch/x86/power/cpu_32.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/x86/power/cpu_32.c 2009-02-21 09:37:48.000000000 -0500 -@@ -67,7 +67,7 @@ static void do_fpu_end(void) - static void fix_processor_context(void) - { - int cpu = smp_processor_id(); -- struct tss_struct *t = &per_cpu(init_tss, cpu); -+ struct tss_struct *t = init_tss + cpu; - - set_tss_desc(cpu, t); /* - * This just modifies memory; should not be -diff -urNp linux-2.6.28.8/arch/x86/power/cpu_64.c linux-2.6.28.8/arch/x86/power/cpu_64.c ---- linux-2.6.28.8/arch/x86/power/cpu_64.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/x86/power/cpu_64.c 2009-02-21 09:37:48.000000000 -0500 -@@ -143,7 +143,11 @@ void restore_processor_state(void) - static void fix_processor_context(void) - { - int cpu = smp_processor_id(); -- struct tss_struct *t = &per_cpu(init_tss, cpu); -+ struct tss_struct *t = init_tss + cpu; -+ -+#ifdef CONFIG_PAX_KERNEXEC -+ unsigned long cr0; -+#endif - - /* - * This just modifies memory; should not be necessary. But... This -@@ -152,8 +156,16 @@ static void fix_processor_context(void) - */ - set_tss_desc(cpu, t); - -+#ifdef CONFIG_PAX_KERNEXEC -+ pax_open_kernel(cr0); -+#endif -+ - get_cpu_gdt_table(cpu)[GDT_ENTRY_TSS].type = 9; - -+#ifdef CONFIG_PAX_KERNEXEC -+ pax_close_kernel(cr0); -+#endif -+ - syscall_init(); /* This sets MSR_*STAR and related */ - load_TR_desc(); /* This does ltr */ - load_LDT(¤t->active_mm->context); /* This does lldt */ -diff -urNp linux-2.6.28.8/arch/x86/vdso/vdso32-setup.c linux-2.6.28.8/arch/x86/vdso/vdso32-setup.c ---- linux-2.6.28.8/arch/x86/vdso/vdso32-setup.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/x86/vdso/vdso32-setup.c 2009-02-21 09:37:48.000000000 -0500 -@@ -226,7 +226,7 @@ static inline void map_compat_vdso(int m - void enable_sep_cpu(void) - { - int cpu = get_cpu(); -- struct tss_struct *tss = &per_cpu(init_tss, cpu); -+ struct tss_struct *tss = init_tss + cpu; - - if (!boot_cpu_has(X86_FEATURE_SEP)) { - put_cpu(); -@@ -249,7 +249,7 @@ static int __init gate_vma_init(void) - gate_vma.vm_start = FIXADDR_USER_START; - gate_vma.vm_end = FIXADDR_USER_END; - gate_vma.vm_flags = VM_READ | VM_MAYREAD | VM_EXEC | VM_MAYEXEC; -- gate_vma.vm_page_prot = __P101; -+ gate_vma.vm_page_prot = vm_get_page_prot(gate_vma.vm_flags); - /* - * Make sure the vDSO gets into every core dump. - * Dumping its contents makes post-mortem fully interpretable later -@@ -331,7 +331,7 @@ int arch_setup_additional_pages(struct l - if (compat) - addr = VDSO_HIGH_BASE; - else { -- addr = get_unmapped_area(NULL, 0, PAGE_SIZE, 0, 0); -+ addr = get_unmapped_area(NULL, 0, PAGE_SIZE, 0, MAP_EXECUTABLE); - if (IS_ERR_VALUE(addr)) { - ret = addr; - goto up_fail; -@@ -358,7 +358,7 @@ int arch_setup_additional_pages(struct l - goto up_fail; - } - -- current->mm->context.vdso = (void *)addr; -+ current->mm->context.vdso = addr; - current_thread_info()->sysenter_return = - VDSO32_SYMBOL(addr, SYSENTER_RETURN); - -@@ -384,7 +384,7 @@ static ctl_table abi_table2[] = { - .mode = 0644, - .proc_handler = proc_dointvec - }, -- {} -+ { 0, NULL, NULL, 0, 0, NULL, NULL, NULL, NULL, NULL, NULL } - }; - - static ctl_table abi_root_table2[] = { -@@ -394,7 +394,7 @@ static ctl_table abi_root_table2[] = { - .mode = 0555, - .child = abi_table2 - }, -- {} -+ { 0, NULL, NULL, 0, 0, NULL, NULL, NULL, NULL, NULL, NULL } - }; - - static __init int ia32_binfmt_init(void) -@@ -409,8 +409,14 @@ __initcall(ia32_binfmt_init); - - const char *arch_vma_name(struct vm_area_struct *vma) - { -- if (vma->vm_mm && vma->vm_start == (long)vma->vm_mm->context.vdso) -+ if (vma->vm_mm && vma->vm_start == vma->vm_mm->context.vdso) - return "[vdso]"; -+ -+#ifdef CONFIG_PAX_SEGMEXEC -+ if (vma->vm_mm && vma->vm_mirror && vma->vm_mirror->vm_start == vma->vm_mm->context.vdso) -+ return "[vdso]"; -+#endif -+ - return NULL; - } - -@@ -419,7 +425,7 @@ struct vm_area_struct *get_gate_vma(stru - struct mm_struct *mm = tsk->mm; - - /* Check to see if this task was created in compat vdso mode */ -- if (mm && mm->context.vdso == (void *)VDSO_HIGH_BASE) -+ if (mm && mm->context.vdso == VDSO_HIGH_BASE) - return &gate_vma; - return NULL; - } -diff -urNp linux-2.6.28.8/arch/x86/vdso/vma.c linux-2.6.28.8/arch/x86/vdso/vma.c ---- linux-2.6.28.8/arch/x86/vdso/vma.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/x86/vdso/vma.c 2009-02-21 09:37:48.000000000 -0500 -@@ -123,7 +123,7 @@ int arch_setup_additional_pages(struct l - if (ret) - goto up_fail; - -- current->mm->context.vdso = (void *)addr; -+ current->mm->context.vdso = addr; - up_fail: - up_write(&mm->mmap_sem); - return ret; -diff -urNp linux-2.6.28.8/arch/x86/xen/enlighten.c linux-2.6.28.8/arch/x86/xen/enlighten.c ---- linux-2.6.28.8/arch/x86/xen/enlighten.c 2009-03-07 10:24:49.000000000 -0500 -+++ linux-2.6.28.8/arch/x86/xen/enlighten.c 2009-03-07 10:29:51.000000000 -0500 -@@ -318,7 +318,7 @@ static void xen_set_ldt(const void *addr - static void xen_load_gdt(const struct desc_ptr *dtr) - { - unsigned long *frames; -- unsigned long va = dtr->address; -+ unsigned long va = (unsigned long)dtr->address; - unsigned int size = dtr->size + 1; - unsigned pages = (size + PAGE_SIZE - 1) / PAGE_SIZE; - int f; -@@ -333,7 +333,7 @@ static void xen_load_gdt(const struct de - mcs = xen_mc_entry(sizeof(*frames) * pages); - frames = mcs.args; - -- for (f = 0; va < dtr->address + size; va += PAGE_SIZE, f++) { -+ for (f = 0; va < (unsigned long)dtr->address + size; va += PAGE_SIZE, f++) { - frames[f] = virt_to_mfn(va); - make_lowmem_page_readonly((void *)va); - } -@@ -441,7 +441,7 @@ static void xen_write_idt_entry(gate_des - - preempt_disable(); - -- start = __get_cpu_var(idt_desc).address; -+ start = (unsigned long)__get_cpu_var(idt_desc).address; - end = start + __get_cpu_var(idt_desc).size + 1; - - xen_mc_flush(); -@@ -1526,6 +1526,8 @@ static __init pgd_t *xen_setup_kernel_pa - convert_pfn_mfn(init_level4_pgt); - convert_pfn_mfn(level3_ident_pgt); - convert_pfn_mfn(level3_kernel_pgt); -+ convert_pfn_mfn(level3_vmalloc_pgt); -+ convert_pfn_mfn(level3_vmemmap_pgt); - - l3 = m2v(pgd[pgd_index(__START_KERNEL_map)].pgd); - l2 = m2v(l3[pud_index(__START_KERNEL_map)].pud); -@@ -1544,9 +1546,12 @@ static __init pgd_t *xen_setup_kernel_pa - set_page_prot(init_level4_pgt, PAGE_KERNEL_RO); - set_page_prot(level3_ident_pgt, PAGE_KERNEL_RO); - set_page_prot(level3_kernel_pgt, PAGE_KERNEL_RO); -+ set_page_prot(level3_vmalloc_pgt, PAGE_KERNEL_RO); -+ set_page_prot(level3_vmemmap_pgt, PAGE_KERNEL_RO); - set_page_prot(level3_user_vsyscall, PAGE_KERNEL_RO); - set_page_prot(level2_kernel_pgt, PAGE_KERNEL_RO); - set_page_prot(level2_fixmap_pgt, PAGE_KERNEL_RO); -+ set_page_prot(level1_fixmap_pgt, PAGE_KERNEL_RO); - - /* Pin down new L4 */ - pin_pagetable_pfn(MMUEXT_PIN_L4_TABLE, -diff -urNp linux-2.6.28.8/arch/x86/xen/smp.c linux-2.6.28.8/arch/x86/xen/smp.c ---- linux-2.6.28.8/arch/x86/xen/smp.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/arch/x86/xen/smp.c 2009-02-21 09:37:48.000000000 -0500 -@@ -171,11 +171,6 @@ static void __init xen_smp_prepare_boot_ - { - BUG_ON(smp_processor_id() != 0); - native_smp_prepare_boot_cpu(); -- -- /* We've switched to the "real" per-cpu gdt, so make sure the -- old memory can be recycled */ -- make_lowmem_page_readwrite(&per_cpu_var(gdt_page)); -- - xen_setup_vcpu_info_placement(); - } - -@@ -231,8 +226,8 @@ cpu_initialize_context(unsigned int cpu, - gdt = get_cpu_gdt_table(cpu); - - ctxt->flags = VGCF_IN_KERNEL; -- ctxt->user_regs.ds = __USER_DS; -- ctxt->user_regs.es = __USER_DS; -+ ctxt->user_regs.ds = __KERNEL_DS; -+ ctxt->user_regs.es = __KERNEL_DS; - ctxt->user_regs.ss = __KERNEL_DS; - #ifdef CONFIG_X86_32 - ctxt->user_regs.fs = __KERNEL_PERCPU; -diff -urNp linux-2.6.28.8/crypto/async_tx/async_tx.c linux-2.6.28.8/crypto/async_tx/async_tx.c ---- linux-2.6.28.8/crypto/async_tx/async_tx.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/crypto/async_tx/async_tx.c 2009-02-21 09:37:48.000000000 -0500 -@@ -358,8 +358,8 @@ async_tx_init(void) - err: - printk(KERN_ERR "async_tx: initialization failure\n"); - -- while (--cap >= 0) -- free_percpu(channel_table[cap]); -+ while (cap) -+ free_percpu(channel_table[--cap]); - - return 1; - } -diff -urNp linux-2.6.28.8/crypto/lrw.c linux-2.6.28.8/crypto/lrw.c ---- linux-2.6.28.8/crypto/lrw.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/crypto/lrw.c 2009-02-21 09:37:48.000000000 -0500 -@@ -54,7 +54,7 @@ static int setkey(struct crypto_tfm *par - struct priv *ctx = crypto_tfm_ctx(parent); - struct crypto_cipher *child = ctx->child; - int err, i; -- be128 tmp = { 0 }; -+ be128 tmp = { 0, 0 }; - int bsize = crypto_cipher_blocksize(child); - - crypto_cipher_clear_flags(child, CRYPTO_TFM_REQ_MASK); -diff -urNp linux-2.6.28.8/Documentation/dontdiff linux-2.6.28.8/Documentation/dontdiff ---- linux-2.6.28.8/Documentation/dontdiff 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/Documentation/dontdiff 2009-02-21 09:37:48.000000000 -0500 -@@ -3,6 +3,7 @@ - *.bin - *.cpio - *.csp -+*.dbg - *.dsp - *.dvi - *.elf -@@ -49,6 +50,10 @@ - 53c700_d.h - CVS - ChangeSet -+GPATH -+GRTAGS -+GSYMS -+GTAGS - Image - Kerntypes - Module.markers -@@ -62,7 +67,6 @@ aic7*reg_print.c* - aic7*seq.h* - aicasm - aicdb.h* --asm - asm-offsets.h - asm_offsets.h - autoconf.h* -@@ -77,6 +81,7 @@ btfixupprep - build - bvmlinux - bzImage* -+capflags.c - classlist.h* - comp*.log - compile.h* -@@ -188,12 +193,15 @@ version.h* - vmlinux - vmlinux-* - vmlinux.aout -+vmlinux.bin.all - vmlinux.lds -+vmlinux.relocs - vsyscall.lds - vsyscall_32.lds - wanxlfw.inc - uImage - unifdef -+utsrelease.h - wakeup.bin - wakeup.elf - wakeup.lds -diff -urNp linux-2.6.28.8/drivers/acpi/blacklist.c linux-2.6.28.8/drivers/acpi/blacklist.c ---- linux-2.6.28.8/drivers/acpi/blacklist.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/drivers/acpi/blacklist.c 2009-02-21 09:37:48.000000000 -0500 -@@ -71,7 +71,7 @@ static struct acpi_blacklist_item acpi_b - {"IBM ", "TP600E ", 0x00000105, ACPI_SIG_DSDT, less_than_or_equal, - "Incorrect _ADR", 1}, - -- {""} -+ {"", "", 0, 0, 0, all_versions, 0} - }; - - #if CONFIG_ACPI_BLACKLIST_YEAR -diff -urNp linux-2.6.28.8/drivers/acpi/osl.c linux-2.6.28.8/drivers/acpi/osl.c ---- linux-2.6.28.8/drivers/acpi/osl.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/drivers/acpi/osl.c 2009-02-21 09:37:48.000000000 -0500 -@@ -483,6 +483,8 @@ acpi_os_read_memory(acpi_physical_addres - void __iomem *virt_addr; - - virt_addr = ioremap(phys_addr, width); -+ if (!virt_addr) -+ return AE_NO_MEMORY; - if (!value) - value = &dummy; - -@@ -511,6 +513,8 @@ acpi_os_write_memory(acpi_physical_addre - void __iomem *virt_addr; - - virt_addr = ioremap(phys_addr, width); -+ if (!virt_addr) -+ return AE_NO_MEMORY; - - switch (width) { - case 8: -diff -urNp linux-2.6.28.8/drivers/acpi/processor_core.c linux-2.6.28.8/drivers/acpi/processor_core.c ---- linux-2.6.28.8/drivers/acpi/processor_core.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/drivers/acpi/processor_core.c 2009-02-21 09:37:48.000000000 -0500 -@@ -678,7 +678,7 @@ static int __cpuinit acpi_processor_star - return 0; - } - -- BUG_ON((pr->id >= nr_cpu_ids) || (pr->id < 0)); -+ BUG_ON(pr->id >= nr_cpu_ids); - - /* - * Buggy BIOS check -diff -urNp linux-2.6.28.8/drivers/acpi/processor_idle.c linux-2.6.28.8/drivers/acpi/processor_idle.c ---- linux-2.6.28.8/drivers/acpi/processor_idle.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/drivers/acpi/processor_idle.c 2009-02-21 09:37:48.000000000 -0500 -@@ -181,7 +181,7 @@ static struct dmi_system_id __cpuinitdat - DMI_MATCH(DMI_BIOS_VENDOR,"Phoenix Technologies LTD"), - DMI_MATCH(DMI_BIOS_VERSION,"SHE845M0.86C.0013.D.0302131307")}, - (void *)2}, -- {}, -+ { NULL, NULL, {DMI_MATCH(DMI_NONE, {0})}, NULL}, - }; - - static inline u32 ticks_elapsed(u32 t1, u32 t2) -diff -urNp linux-2.6.28.8/drivers/acpi/tables/tbfadt.c linux-2.6.28.8/drivers/acpi/tables/tbfadt.c ---- linux-2.6.28.8/drivers/acpi/tables/tbfadt.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/drivers/acpi/tables/tbfadt.c 2009-02-21 09:37:48.000000000 -0500 -@@ -48,7 +48,7 @@ - ACPI_MODULE_NAME("tbfadt") - - /* Local prototypes */ --static void inline -+static inline void - acpi_tb_init_generic_address(struct acpi_generic_address *generic_address, - u8 byte_width, u64 address); - -@@ -122,7 +122,7 @@ static struct acpi_fadt_info fadt_info_t - * - ******************************************************************************/ - --static void inline -+static inline void - acpi_tb_init_generic_address(struct acpi_generic_address *generic_address, - u8 byte_width, u64 address) - { -diff -urNp linux-2.6.28.8/drivers/ata/ahci.c linux-2.6.28.8/drivers/ata/ahci.c ---- linux-2.6.28.8/drivers/ata/ahci.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/drivers/ata/ahci.c 2009-02-21 09:37:48.000000000 -0500 -@@ -606,7 +606,7 @@ static const struct pci_device_id ahci_p - { PCI_ANY_ID, PCI_ANY_ID, PCI_ANY_ID, PCI_ANY_ID, - PCI_CLASS_STORAGE_SATA_AHCI, 0xffffff, board_ahci }, - -- { } /* terminate list */ -+ { 0, 0, 0, 0, 0, 0, 0 } /* terminate list */ - }; - - -diff -urNp linux-2.6.28.8/drivers/ata/ata_piix.c linux-2.6.28.8/drivers/ata/ata_piix.c ---- linux-2.6.28.8/drivers/ata/ata_piix.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/drivers/ata/ata_piix.c 2009-02-21 09:37:48.000000000 -0500 -@@ -289,7 +289,7 @@ static const struct pci_device_id piix_p - { 0x8086, 0x3b2d, PCI_ANY_ID, PCI_ANY_ID, 0, 0, ich8_2port_sata }, - /* SATA Controller IDE (PCH) */ - { 0x8086, 0x3b2e, PCI_ANY_ID, PCI_ANY_ID, 0, 0, ich8_sata }, -- { } /* terminate list */ -+ { 0, 0, 0, 0, 0, 0, 0 } /* terminate list */ - }; - - static struct pci_driver piix_pci_driver = { -@@ -593,7 +593,7 @@ static const struct ich_laptop ich_lapto - { 0x266F, 0x1025, 0x0066 }, /* ICH6 on ACER Aspire 1694WLMi */ - { 0x2653, 0x1043, 0x82D8 }, /* ICH6M on Asus Eee 701 */ - /* end marker */ -- { 0, } -+ { 0, 0, 0 } - }; - - /** -@@ -1052,7 +1052,7 @@ static int piix_broken_suspend(void) - }, - }, - -- { } /* terminate list */ -+ { NULL, NULL, {DMI_MATCH(DMI_NONE, {0})}, NULL } /* terminate list */ - }; - static const char *oemstrs[] = { - "Tecra M3,", -diff -urNp linux-2.6.28.8/drivers/ata/libata-core.c linux-2.6.28.8/drivers/ata/libata-core.c ---- linux-2.6.28.8/drivers/ata/libata-core.c 2009-03-07 10:24:49.000000000 -0500 -+++ linux-2.6.28.8/drivers/ata/libata-core.c 2009-03-07 10:29:51.000000000 -0500 -@@ -807,7 +807,7 @@ static const struct ata_xfer_ent { - { ATA_SHIFT_PIO, ATA_NR_PIO_MODES, XFER_PIO_0 }, - { ATA_SHIFT_MWDMA, ATA_NR_MWDMA_MODES, XFER_MW_DMA_0 }, - { ATA_SHIFT_UDMA, ATA_NR_UDMA_MODES, XFER_UDMA_0 }, -- { -1, }, -+ { -1, 0, 0 } - }; - - /** -@@ -2983,7 +2983,7 @@ static const struct ata_timing ata_timin - { XFER_UDMA_5, 0, 0, 0, 0, 0, 0, 0, 20 }, - { XFER_UDMA_6, 0, 0, 0, 0, 0, 0, 0, 15 }, - -- { 0xFF } -+ { 0xFF, 0, 0, 0, 0, 0, 0, 0, 0 } - }; - - #define ENOUGH(v, unit) (((v)-1)/(unit)+1) -@@ -4149,7 +4149,7 @@ static const struct ata_blacklist_entry - { "MTRON MSP-SATA*", NULL, ATA_HORKAGE_BRIDGE_OK, }, - - /* End Marker */ -- { } -+ { NULL, NULL, 0 } - }; - - static int strn_pattern_cmp(const char *patt, const char *name, int wildchar) -diff -urNp linux-2.6.28.8/drivers/char/agp/frontend.c linux-2.6.28.8/drivers/char/agp/frontend.c ---- linux-2.6.28.8/drivers/char/agp/frontend.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/drivers/char/agp/frontend.c 2009-02-21 09:37:48.000000000 -0500 -@@ -824,7 +824,7 @@ static int agpioc_reserve_wrap(struct ag - if (copy_from_user(&reserve, arg, sizeof(struct agp_region))) - return -EFAULT; - -- if ((unsigned) reserve.seg_count >= ~0U/sizeof(struct agp_segment)) -+ if ((unsigned) reserve.seg_count >= ~0U/sizeof(struct agp_segment_priv)) - return -EFAULT; - - client = agp_find_client_by_pid(reserve.pid); -diff -urNp linux-2.6.28.8/drivers/char/agp/intel-agp.c linux-2.6.28.8/drivers/char/agp/intel-agp.c ---- linux-2.6.28.8/drivers/char/agp/intel-agp.c 2009-03-07 10:24:49.000000000 -0500 -+++ linux-2.6.28.8/drivers/char/agp/intel-agp.c 2009-03-07 10:29:51.000000000 -0500 -@@ -2369,7 +2369,7 @@ static struct pci_device_id agp_intel_pc - ID(PCI_DEVICE_ID_INTEL_Q45_HB), - ID(PCI_DEVICE_ID_INTEL_G45_HB), - ID(PCI_DEVICE_ID_INTEL_G41_HB), -- { } -+ { 0, 0, 0, 0, 0, 0, 0 } - }; - - MODULE_DEVICE_TABLE(pci, agp_intel_pci_table); -diff -urNp linux-2.6.28.8/drivers/char/hpet.c linux-2.6.28.8/drivers/char/hpet.c ---- linux-2.6.28.8/drivers/char/hpet.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/drivers/char/hpet.c 2009-02-21 09:37:48.000000000 -0500 -@@ -975,7 +975,7 @@ static struct acpi_driver hpet_acpi_driv - }, - }; - --static struct miscdevice hpet_misc = { HPET_MINOR, "hpet", &hpet_fops }; -+static struct miscdevice hpet_misc = { HPET_MINOR, "hpet", &hpet_fops, {NULL, NULL}, NULL, NULL }; - - static int __init hpet_init(void) - { -diff -urNp linux-2.6.28.8/drivers/char/keyboard.c linux-2.6.28.8/drivers/char/keyboard.c ---- linux-2.6.28.8/drivers/char/keyboard.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/drivers/char/keyboard.c 2009-02-21 09:37:48.000000000 -0500 -@@ -635,6 +635,16 @@ static void k_spec(struct vc_data *vc, u - kbd->kbdmode == VC_MEDIUMRAW) && - value != KVAL(K_SAK)) - return; /* SAK is allowed even in raw mode */ -+ -+#if defined(CONFIG_GRKERNSEC_PROC) || defined(CONFIG_GRKERNSEC_PROC_MEMMAP) -+ { -+ void *func = fn_handler[value]; -+ if (func == fn_show_state || func == fn_show_ptregs || -+ func == fn_show_mem) -+ return; -+ } -+#endif -+ - fn_handler[value](vc); - } - -@@ -1388,7 +1398,7 @@ static const struct input_device_id kbd_ - .evbit = { BIT_MASK(EV_SND) }, - }, - -- { }, /* Terminating entry */ -+ { 0 }, /* Terminating entry */ - }; - - MODULE_DEVICE_TABLE(input, kbd_ids); -diff -urNp linux-2.6.28.8/drivers/char/mem.c linux-2.6.28.8/drivers/char/mem.c ---- linux-2.6.28.8/drivers/char/mem.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/drivers/char/mem.c 2009-02-21 09:37:48.000000000 -0500 -@@ -18,6 +18,7 @@ - #include <linux/raw.h> - #include <linux/tty.h> - #include <linux/capability.h> -+#include <linux/security.h> - #include <linux/ptrace.h> - #include <linux/device.h> - #include <linux/highmem.h> -@@ -35,6 +36,10 @@ - # include <linux/efi.h> - #endif - -+#ifdef CONFIG_GRKERNSEC -+extern struct file_operations grsec_fops; -+#endif -+ - /* - * Architectures vary in how they handle caching for addresses - * outside of main memory. -@@ -192,6 +197,11 @@ static ssize_t write_mem(struct file * f - if (!valid_phys_addr_range(p, count)) - return -EFAULT; - -+#ifdef CONFIG_GRKERNSEC_KMEM -+ gr_handle_mem_write(); -+ return -EPERM; -+#endif -+ - written = 0; - - #ifdef __ARCH_HAS_NO_PAGE_ZERO_MAPPED -@@ -350,6 +360,11 @@ static int mmap_mem(struct file * file, - &vma->vm_page_prot)) - return -EINVAL; - -+#ifdef CONFIG_GRKERNSEC_KMEM -+ if (gr_handle_mem_mmap(vma->vm_pgoff << PAGE_SHIFT, vma)) -+ return -EPERM; -+#endif -+ - vma->vm_page_prot = phys_mem_access_prot(file, vma->vm_pgoff, - size, - vma->vm_page_prot); -@@ -588,6 +603,11 @@ static ssize_t write_kmem(struct file * - ssize_t written; - char * kbuf; /* k-addr because vwrite() takes vmlist_lock rwlock */ - -+#ifdef CONFIG_GRKERNSEC_KMEM -+ gr_handle_kmem_write(); -+ return -EPERM; -+#endif -+ - if (p < (unsigned long) high_memory) { - - wrote = count; -@@ -791,6 +811,16 @@ static loff_t memory_lseek(struct file * - - static int open_port(struct inode * inode, struct file * filp) - { -+#ifdef CONFIG_GRKERNSEC_KMEM -+ gr_handle_open_port(); -+ return -EPERM; -+#endif -+ -+ return capable(CAP_SYS_RAWIO) ? 0 : -EPERM; -+} -+ -+static int open_mem(struct inode * inode, struct file * filp) -+{ - return capable(CAP_SYS_RAWIO) ? 0 : -EPERM; - } - -@@ -798,7 +828,6 @@ static int open_port(struct inode * inod - #define full_lseek null_lseek - #define write_zero write_null - #define read_full read_zero --#define open_mem open_port - #define open_kmem open_mem - #define open_oldmem open_mem - -@@ -938,6 +967,11 @@ static int memory_open(struct inode * in - filp->f_op = &oldmem_fops; - break; - #endif -+#ifdef CONFIG_GRKERNSEC -+ case 13: -+ filp->f_op = &grsec_fops; -+ break; -+#endif - default: - unlock_kernel(); - return -ENXIO; -@@ -974,6 +1008,9 @@ static const struct { - #ifdef CONFIG_CRASH_DUMP - {12,"oldmem", S_IRUSR | S_IWUSR | S_IRGRP, &oldmem_fops}, - #endif -+#ifdef CONFIG_GRKERNSEC -+ {13,"grsec", S_IRUSR | S_IWUGO, &grsec_fops}, -+#endif - }; - - static struct class *mem_class; -diff -urNp linux-2.6.28.8/drivers/char/nvram.c linux-2.6.28.8/drivers/char/nvram.c ---- linux-2.6.28.8/drivers/char/nvram.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/drivers/char/nvram.c 2009-02-21 09:37:48.000000000 -0500 -@@ -433,7 +433,10 @@ static const struct file_operations nvra - static struct miscdevice nvram_dev = { - NVRAM_MINOR, - "nvram", -- &nvram_fops -+ &nvram_fops, -+ {NULL, NULL}, -+ NULL, -+ NULL - }; - - static int __init -diff -urNp linux-2.6.28.8/drivers/char/random.c linux-2.6.28.8/drivers/char/random.c ---- linux-2.6.28.8/drivers/char/random.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/drivers/char/random.c 2009-02-21 09:37:48.000000000 -0500 -@@ -249,8 +249,13 @@ - /* - * Configuration information - */ -+#ifdef CONFIG_GRKERNSEC_RANDNET -+#define INPUT_POOL_WORDS 512 -+#define OUTPUT_POOL_WORDS 128 -+#else - #define INPUT_POOL_WORDS 128 - #define OUTPUT_POOL_WORDS 32 -+#endif - #define SEC_XFER_SIZE 512 - - /* -@@ -287,10 +292,17 @@ static struct poolinfo { - int poolwords; - int tap1, tap2, tap3, tap4, tap5; - } poolinfo_table[] = { -+#ifdef CONFIG_GRKERNSEC_RANDNET -+ /* x^512 + x^411 + x^308 + x^208 +x^104 + x + 1 -- 225 */ -+ { 512, 411, 308, 208, 104, 1 }, -+ /* x^128 + x^103 + x^76 + x^51 + x^25 + x + 1 -- 105 */ -+ { 128, 103, 76, 51, 25, 1 }, -+#else - /* x^128 + x^103 + x^76 + x^51 +x^25 + x + 1 -- 105 */ - { 128, 103, 76, 51, 25, 1 }, - /* x^32 + x^26 + x^20 + x^14 + x^7 + x + 1 -- 15 */ - { 32, 26, 20, 14, 7, 1 }, -+#endif - #if 0 - /* x^2048 + x^1638 + x^1231 + x^819 + x^411 + x + 1 -- 115 */ - { 2048, 1638, 1231, 819, 411, 1 }, -@@ -1185,7 +1197,7 @@ EXPORT_SYMBOL(generate_random_uuid); - #include <linux/sysctl.h> - - static int min_read_thresh = 8, min_write_thresh; --static int max_read_thresh = INPUT_POOL_WORDS * 32; -+static int max_read_thresh = OUTPUT_POOL_WORDS * 32; - static int max_write_thresh = INPUT_POOL_WORDS * 32; - static char sysctl_bootid[16]; - -diff -urNp linux-2.6.28.8/drivers/char/tpm/tpm.c linux-2.6.28.8/drivers/char/tpm/tpm.c ---- linux-2.6.28.8/drivers/char/tpm/tpm.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/drivers/char/tpm/tpm.c 2009-02-21 09:37:48.000000000 -0500 -@@ -1035,7 +1035,7 @@ ssize_t tpm_write(struct file *file, con - - mutex_lock(&chip->buffer_mutex); - -- if (in_size > TPM_BUFSIZE) -+ if (in_size > (unsigned int)TPM_BUFSIZE) - in_size = TPM_BUFSIZE; - - if (copy_from_user -diff -urNp linux-2.6.28.8/drivers/char/vt_ioctl.c linux-2.6.28.8/drivers/char/vt_ioctl.c ---- linux-2.6.28.8/drivers/char/vt_ioctl.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/drivers/char/vt_ioctl.c 2009-02-21 09:37:48.000000000 -0500 -@@ -96,6 +96,12 @@ do_kdsk_ioctl(int cmd, struct kbentry __ - case KDSKBENT: - if (!perm) - return -EPERM; -+ -+#ifdef CONFIG_GRKERNSEC -+ if (!capable(CAP_SYS_TTY_CONFIG)) -+ return -EPERM; -+#endif -+ - if (!i && v == K_NOSUCHMAP) { - /* deallocate map */ - key_map = key_maps[s]; -@@ -236,6 +242,13 @@ do_kdgkb_ioctl(int cmd, struct kbsentry - goto reterr; - } - -+#ifdef CONFIG_GRKERNSEC -+ if (!capable(CAP_SYS_TTY_CONFIG)) { -+ ret = -EPERM; -+ goto reterr; -+ } -+#endif -+ - q = func_table[i]; - first_free = funcbufptr + (funcbufsize - funcbufleft); - for (j = i+1; j < MAX_NR_FUNC && !func_table[j]; j++) -diff -urNp linux-2.6.28.8/drivers/edac/edac_core.h linux-2.6.28.8/drivers/edac/edac_core.h ---- linux-2.6.28.8/drivers/edac/edac_core.h 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/drivers/edac/edac_core.h 2009-02-21 09:37:48.000000000 -0500 -@@ -85,11 +85,11 @@ extern int edac_debug_level; - - #else /* !CONFIG_EDAC_DEBUG */ - --#define debugf0( ... ) --#define debugf1( ... ) --#define debugf2( ... ) --#define debugf3( ... ) --#define debugf4( ... ) -+#define debugf0( ... ) do {} while (0) -+#define debugf1( ... ) do {} while (0) -+#define debugf2( ... ) do {} while (0) -+#define debugf3( ... ) do {} while (0) -+#define debugf4( ... ) do {} while (0) - - #endif /* !CONFIG_EDAC_DEBUG */ - -diff -urNp linux-2.6.28.8/drivers/firmware/dmi_scan.c linux-2.6.28.8/drivers/firmware/dmi_scan.c ---- linux-2.6.28.8/drivers/firmware/dmi_scan.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/drivers/firmware/dmi_scan.c 2009-02-21 09:37:48.000000000 -0500 -@@ -389,11 +389,6 @@ void __init dmi_scan_machine(void) - } - } - else { -- /* -- * no iounmap() for that ioremap(); it would be a no-op, but -- * it's so early in setup that sucker gets confused into doing -- * what it shouldn't if we actually call it. -- */ - p = dmi_ioremap(0xF0000, 0x10000); - if (p == NULL) - goto error; -diff -urNp linux-2.6.28.8/drivers/hwmon/fscpos.c linux-2.6.28.8/drivers/hwmon/fscpos.c ---- linux-2.6.28.8/drivers/hwmon/fscpos.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/drivers/hwmon/fscpos.c 2009-02-21 09:37:48.000000000 -0500 -@@ -240,7 +240,6 @@ static ssize_t set_pwm(struct i2c_client - unsigned long v = simple_strtoul(buf, NULL, 10); - - /* Range: 0..255 */ -- if (v < 0) v = 0; - if (v > 255) v = 255; - - mutex_lock(&data->update_lock); -diff -urNp linux-2.6.28.8/drivers/hwmon/k8temp.c linux-2.6.28.8/drivers/hwmon/k8temp.c ---- linux-2.6.28.8/drivers/hwmon/k8temp.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/drivers/hwmon/k8temp.c 2009-02-21 09:37:48.000000000 -0500 -@@ -130,7 +130,7 @@ static DEVICE_ATTR(name, S_IRUGO, show_n - - static struct pci_device_id k8temp_ids[] = { - { PCI_DEVICE(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_K8_NB_MISC) }, -- { 0 }, -+ { 0, 0, 0, 0, 0, 0, 0 }, - }; - - MODULE_DEVICE_TABLE(pci, k8temp_ids); -diff -urNp linux-2.6.28.8/drivers/hwmon/sis5595.c linux-2.6.28.8/drivers/hwmon/sis5595.c ---- linux-2.6.28.8/drivers/hwmon/sis5595.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/drivers/hwmon/sis5595.c 2009-02-21 09:37:48.000000000 -0500 -@@ -698,7 +698,7 @@ static struct sis5595_data *sis5595_upda - - static struct pci_device_id sis5595_pci_ids[] = { - { PCI_DEVICE(PCI_VENDOR_ID_SI, PCI_DEVICE_ID_SI_503) }, -- { 0, } -+ { 0, 0, 0, 0, 0, 0, 0 } - }; - - MODULE_DEVICE_TABLE(pci, sis5595_pci_ids); -diff -urNp linux-2.6.28.8/drivers/hwmon/via686a.c linux-2.6.28.8/drivers/hwmon/via686a.c ---- linux-2.6.28.8/drivers/hwmon/via686a.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/drivers/hwmon/via686a.c 2009-02-21 09:37:48.000000000 -0500 -@@ -768,7 +768,7 @@ static struct via686a_data *via686a_upda - - static struct pci_device_id via686a_pci_ids[] = { - { PCI_DEVICE(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_82C686_4) }, -- { 0, } -+ { 0, 0, 0, 0, 0, 0, 0 } - }; - - MODULE_DEVICE_TABLE(pci, via686a_pci_ids); -diff -urNp linux-2.6.28.8/drivers/hwmon/vt8231.c linux-2.6.28.8/drivers/hwmon/vt8231.c ---- linux-2.6.28.8/drivers/hwmon/vt8231.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/drivers/hwmon/vt8231.c 2009-02-21 09:37:48.000000000 -0500 -@@ -698,7 +698,7 @@ static struct platform_driver vt8231_dri - - static struct pci_device_id vt8231_pci_ids[] = { - { PCI_DEVICE(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8231_4) }, -- { 0, } -+ { 0, 0, 0, 0, 0, 0, 0 } - }; - - MODULE_DEVICE_TABLE(pci, vt8231_pci_ids); -diff -urNp linux-2.6.28.8/drivers/hwmon/w83791d.c linux-2.6.28.8/drivers/hwmon/w83791d.c ---- linux-2.6.28.8/drivers/hwmon/w83791d.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/drivers/hwmon/w83791d.c 2009-02-21 09:37:48.000000000 -0500 -@@ -327,8 +327,8 @@ static int w83791d_detect(struct i2c_cli - struct i2c_board_info *info); - static int w83791d_remove(struct i2c_client *client); - --static int w83791d_read(struct i2c_client *client, u8 register); --static int w83791d_write(struct i2c_client *client, u8 register, u8 value); -+static int w83791d_read(struct i2c_client *client, u8 reg); -+static int w83791d_write(struct i2c_client *client, u8 reg, u8 value); - static struct w83791d_data *w83791d_update_device(struct device *dev); - - #ifdef DEBUG -diff -urNp linux-2.6.28.8/drivers/i2c/busses/i2c-i801.c linux-2.6.28.8/drivers/i2c/busses/i2c-i801.c ---- linux-2.6.28.8/drivers/i2c/busses/i2c-i801.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/drivers/i2c/busses/i2c-i801.c 2009-02-21 09:37:48.000000000 -0500 -@@ -578,7 +578,7 @@ static struct pci_device_id i801_ids[] = - { PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH10_4) }, - { PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH10_5) }, - { PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_PCH_SMBUS) }, -- { 0, } -+ { 0, 0, 0, 0, 0, 0, 0 } - }; - - MODULE_DEVICE_TABLE (pci, i801_ids); -diff -urNp linux-2.6.28.8/drivers/i2c/busses/i2c-piix4.c linux-2.6.28.8/drivers/i2c/busses/i2c-piix4.c ---- linux-2.6.28.8/drivers/i2c/busses/i2c-piix4.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/drivers/i2c/busses/i2c-piix4.c 2009-02-21 09:37:48.000000000 -0500 -@@ -123,7 +123,7 @@ static struct dmi_system_id __devinitdat - .ident = "IBM", - .matches = { DMI_MATCH(DMI_SYS_VENDOR, "IBM"), }, - }, -- { }, -+ { NULL, NULL, {DMI_MATCH(DMI_NONE, NULL)}, NULL }, - }; - - static int __devinit piix4_setup(struct pci_dev *PIIX4_dev, -@@ -424,7 +424,7 @@ static struct pci_device_id piix4_ids[] - PCI_DEVICE_ID_SERVERWORKS_CSB6) }, - { PCI_DEVICE(PCI_VENDOR_ID_SERVERWORKS, - PCI_DEVICE_ID_SERVERWORKS_HT1000SB) }, -- { 0, } -+ { 0, 0, 0, 0, 0, 0, 0 } - }; - - MODULE_DEVICE_TABLE (pci, piix4_ids); -diff -urNp linux-2.6.28.8/drivers/i2c/busses/i2c-sis630.c linux-2.6.28.8/drivers/i2c/busses/i2c-sis630.c ---- linux-2.6.28.8/drivers/i2c/busses/i2c-sis630.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/drivers/i2c/busses/i2c-sis630.c 2009-02-21 09:37:48.000000000 -0500 -@@ -472,7 +472,7 @@ static struct i2c_adapter sis630_adapter - static struct pci_device_id sis630_ids[] __devinitdata = { - { PCI_DEVICE(PCI_VENDOR_ID_SI, PCI_DEVICE_ID_SI_503) }, - { PCI_DEVICE(PCI_VENDOR_ID_SI, PCI_DEVICE_ID_SI_LPC) }, -- { 0, } -+ { 0, 0, 0, 0, 0, 0, 0 } - }; - - MODULE_DEVICE_TABLE (pci, sis630_ids); -diff -urNp linux-2.6.28.8/drivers/i2c/busses/i2c-sis96x.c linux-2.6.28.8/drivers/i2c/busses/i2c-sis96x.c ---- linux-2.6.28.8/drivers/i2c/busses/i2c-sis96x.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/drivers/i2c/busses/i2c-sis96x.c 2009-02-21 09:37:48.000000000 -0500 -@@ -248,7 +248,7 @@ static struct i2c_adapter sis96x_adapter - - static struct pci_device_id sis96x_ids[] = { - { PCI_DEVICE(PCI_VENDOR_ID_SI, PCI_DEVICE_ID_SI_SMBUS) }, -- { 0, } -+ { 0, 0, 0, 0, 0, 0, 0 } - }; - - MODULE_DEVICE_TABLE (pci, sis96x_ids); -diff -urNp linux-2.6.28.8/drivers/ieee1394/dv1394.c linux-2.6.28.8/drivers/ieee1394/dv1394.c ---- linux-2.6.28.8/drivers/ieee1394/dv1394.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/drivers/ieee1394/dv1394.c 2009-02-21 09:37:48.000000000 -0500 -@@ -739,7 +739,7 @@ static void frame_prepare(struct video_c - based upon DIF section and sequence - */ - --static void inline -+static inline void - frame_put_packet (struct frame *f, struct packet *p) - { - int section_type = p->data[0] >> 5; /* section type is in bits 5 - 7 */ -@@ -2177,7 +2177,7 @@ static struct ieee1394_device_id dv1394_ - .specifier_id = AVC_UNIT_SPEC_ID_ENTRY & 0xffffff, - .version = AVC_SW_VERSION_ENTRY & 0xffffff - }, -- { } -+ { 0, 0, 0, 0, 0, 0 } - }; - - MODULE_DEVICE_TABLE(ieee1394, dv1394_id_table); -diff -urNp linux-2.6.28.8/drivers/ieee1394/eth1394.c linux-2.6.28.8/drivers/ieee1394/eth1394.c ---- linux-2.6.28.8/drivers/ieee1394/eth1394.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/drivers/ieee1394/eth1394.c 2009-02-21 09:37:48.000000000 -0500 -@@ -451,7 +451,7 @@ static struct ieee1394_device_id eth1394 - .specifier_id = ETHER1394_GASP_SPECIFIER_ID, - .version = ETHER1394_GASP_VERSION, - }, -- {} -+ { 0, 0, 0, 0, 0, 0 } - }; - - MODULE_DEVICE_TABLE(ieee1394, eth1394_id_table); -diff -urNp linux-2.6.28.8/drivers/ieee1394/hosts.c linux-2.6.28.8/drivers/ieee1394/hosts.c ---- linux-2.6.28.8/drivers/ieee1394/hosts.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/drivers/ieee1394/hosts.c 2009-02-21 09:37:48.000000000 -0500 -@@ -78,6 +78,7 @@ static int dummy_isoctl(struct hpsb_iso - } - - static struct hpsb_host_driver dummy_driver = { -+ .name = "dummy", - .transmit_packet = dummy_transmit_packet, - .devctl = dummy_devctl, - .isoctl = dummy_isoctl -diff -urNp linux-2.6.28.8/drivers/ieee1394/ohci1394.c linux-2.6.28.8/drivers/ieee1394/ohci1394.c ---- linux-2.6.28.8/drivers/ieee1394/ohci1394.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/drivers/ieee1394/ohci1394.c 2009-02-21 09:37:48.000000000 -0500 -@@ -147,9 +147,9 @@ printk(level "%s: " fmt "\n" , OHCI1394_ - printk(level "%s: fw-host%d: " fmt "\n" , OHCI1394_DRIVER_NAME, ohci->host->id , ## args) - - /* Module Parameters */ --static int phys_dma = 1; -+static int phys_dma; - module_param(phys_dma, int, 0444); --MODULE_PARM_DESC(phys_dma, "Enable physical DMA (default = 1)."); -+MODULE_PARM_DESC(phys_dma, "Enable physical DMA (default = 0)."); - - static void dma_trm_tasklet(unsigned long data); - static void dma_trm_reset(struct dma_trm_ctx *d); -@@ -3437,7 +3437,7 @@ static struct pci_device_id ohci1394_pci - .subvendor = PCI_ANY_ID, - .subdevice = PCI_ANY_ID, - }, -- { 0, }, -+ { 0, 0, 0, 0, 0, 0, 0 }, - }; - - MODULE_DEVICE_TABLE(pci, ohci1394_pci_tbl); -diff -urNp linux-2.6.28.8/drivers/ieee1394/raw1394.c linux-2.6.28.8/drivers/ieee1394/raw1394.c ---- linux-2.6.28.8/drivers/ieee1394/raw1394.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/drivers/ieee1394/raw1394.c 2009-02-21 09:37:48.000000000 -0500 -@@ -2995,7 +2995,7 @@ static struct ieee1394_device_id raw1394 - .match_flags = IEEE1394_MATCH_SPECIFIER_ID | IEEE1394_MATCH_VERSION, - .specifier_id = CAMERA_UNIT_SPEC_ID_ENTRY & 0xffffff, - .version = (CAMERA_SW_VERSION_ENTRY + 2) & 0xffffff}, -- {} -+ { 0, 0, 0, 0, 0, 0 } - }; - - MODULE_DEVICE_TABLE(ieee1394, raw1394_id_table); -diff -urNp linux-2.6.28.8/drivers/ieee1394/sbp2.c linux-2.6.28.8/drivers/ieee1394/sbp2.c ---- linux-2.6.28.8/drivers/ieee1394/sbp2.c 2009-02-07 16:10:45.000000000 -0500 -+++ linux-2.6.28.8/drivers/ieee1394/sbp2.c 2009-02-21 09:37:48.000000000 -0500 -@@ -290,7 +290,7 @@ static struct ieee1394_device_id sbp2_id - .match_flags = IEEE1394_MATCH_SPECIFIER_ID | IEEE1394_MATCH_VERSION, - .specifier_id = SBP2_UNIT_SPEC_ID_ENTRY & 0xffffff, - .version = SBP2_SW_VERSION_ENTRY & 0xffffff}, -- {} -+ { 0, 0, 0, 0, 0, 0 } - }; - MODULE_DEVICE_TABLE(ieee1394, sbp2_id_table); - -@@ -2110,7 +2110,7 @@ MODULE_DESCRIPTION("IEEE-1394 SBP-2 prot - MODULE_SUPPORTED_DEVICE(SBP2_DEVICE_NAME); - MODULE_LICENSE("GPL"); - --static int sbp2_module_init(void) -+static int __init sbp2_module_init(void) - { - int ret; - -diff -urNp linux-2.6.28.8/drivers/ieee1394/video1394.c linux-2.6.28.8/drivers/ieee1394/video1394.c ---- linux-2.6.28.8/drivers/ieee1394/video1394.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/drivers/ieee1394/video1394.c 2009-02-21 09:37:48.000000000 -0500 -@@ -1310,7 +1310,7 @@ static struct ieee1394_device_id video13 - .specifier_id = CAMERA_UNIT_SPEC_ID_ENTRY & 0xffffff, - .version = (CAMERA_SW_VERSION_ENTRY + 2) & 0xffffff - }, -- { } -+ { 0, 0, 0, 0, 0, 0 } - }; - - MODULE_DEVICE_TABLE(ieee1394, video1394_id_table); -diff -urNp linux-2.6.28.8/drivers/input/keyboard/atkbd.c linux-2.6.28.8/drivers/input/keyboard/atkbd.c ---- linux-2.6.28.8/drivers/input/keyboard/atkbd.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/drivers/input/keyboard/atkbd.c 2009-02-21 09:37:48.000000000 -0500 -@@ -1164,7 +1164,7 @@ static struct serio_device_id atkbd_seri - .id = SERIO_ANY, - .extra = SERIO_ANY, - }, -- { 0 } -+ { 0, 0, 0, 0 } - }; - - MODULE_DEVICE_TABLE(serio, atkbd_serio_ids); -diff -urNp linux-2.6.28.8/drivers/input/mouse/lifebook.c linux-2.6.28.8/drivers/input/mouse/lifebook.c ---- linux-2.6.28.8/drivers/input/mouse/lifebook.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/drivers/input/mouse/lifebook.c 2009-02-21 09:37:48.000000000 -0500 -@@ -110,7 +110,7 @@ static const struct dmi_system_id lifebo - DMI_MATCH(DMI_PRODUCT_NAME, "LifeBook B142"), - }, - }, -- { } -+ { NULL, NULL, {DMI_MATCH(DMI_NONE, {0})}, NULL} - }; - - static psmouse_ret_t lifebook_process_byte(struct psmouse *psmouse) -diff -urNp linux-2.6.28.8/drivers/input/mouse/psmouse-base.c linux-2.6.28.8/drivers/input/mouse/psmouse-base.c ---- linux-2.6.28.8/drivers/input/mouse/psmouse-base.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/drivers/input/mouse/psmouse-base.c 2009-02-21 09:37:48.000000000 -0500 -@@ -1378,7 +1378,7 @@ static struct serio_device_id psmouse_se - .id = SERIO_ANY, - .extra = SERIO_ANY, - }, -- { 0 } -+ { 0, 0, 0, 0 } - }; - - MODULE_DEVICE_TABLE(serio, psmouse_serio_ids); -diff -urNp linux-2.6.28.8/drivers/input/mouse/synaptics.c linux-2.6.28.8/drivers/input/mouse/synaptics.c ---- linux-2.6.28.8/drivers/input/mouse/synaptics.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/drivers/input/mouse/synaptics.c 2009-02-21 09:37:48.000000000 -0500 -@@ -417,7 +417,7 @@ static void synaptics_process_packet(str - break; - case 2: - if (SYN_MODEL_PEN(priv->model_id)) -- ; /* Nothing, treat a pen as a single finger */ -+ break; /* Nothing, treat a pen as a single finger */ - break; - case 4 ... 15: - if (SYN_CAP_PALMDETECT(priv->capabilities)) -@@ -624,7 +624,7 @@ static const struct dmi_system_id toshib - DMI_MATCH(DMI_PRODUCT_NAME, "PORTEGE M300"), - }, - }, -- { } -+ { NULL, NULL, {DMI_MATCH(DMI_NONE, {0})}, NULL } - }; - #endif - -diff -urNp linux-2.6.28.8/drivers/input/mousedev.c linux-2.6.28.8/drivers/input/mousedev.c ---- linux-2.6.28.8/drivers/input/mousedev.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/drivers/input/mousedev.c 2009-02-21 09:37:48.000000000 -0500 -@@ -1063,7 +1063,7 @@ static struct input_handler mousedev_han - - #ifdef CONFIG_INPUT_MOUSEDEV_PSAUX - static struct miscdevice psaux_mouse = { -- PSMOUSE_MINOR, "psaux", &mousedev_fops -+ PSMOUSE_MINOR, "psaux", &mousedev_fops, {NULL, NULL}, NULL, NULL - }; - static int psaux_registered; - #endif -diff -urNp linux-2.6.28.8/drivers/input/serio/i8042-x86ia64io.h linux-2.6.28.8/drivers/input/serio/i8042-x86ia64io.h ---- linux-2.6.28.8/drivers/input/serio/i8042-x86ia64io.h 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/drivers/input/serio/i8042-x86ia64io.h 2009-02-21 09:37:48.000000000 -0500 -@@ -143,7 +143,7 @@ static struct dmi_system_id __initdata i - DMI_MATCH(DMI_PRODUCT_VERSION, "M606"), - }, - }, -- { } -+ { NULL, NULL, {DMI_MATCH(DMI_NONE, {0})}, NULL } - }; - - /* -@@ -351,7 +351,7 @@ static struct dmi_system_id __initdata i - DMI_MATCH(DMI_PRODUCT_NAME, "HEL80I"), - }, - }, -- { } -+ { NULL, NULL, {DMI_MATCH(DMI_NONE, {0})}, NULL } - }; - - #ifdef CONFIG_PNP -@@ -363,7 +363,7 @@ static struct dmi_system_id __initdata i - DMI_MATCH(DMI_BOARD_VENDOR, "Intel Corporation"), - }, - }, -- { } -+ { NULL, NULL, {DMI_MATCH(DMI_NONE, {0})}, NULL } - }; - #endif - -@@ -430,7 +430,7 @@ static struct dmi_system_id __initdata i - DMI_MATCH(DMI_PRODUCT_NAME, "TravelMate 4280"), - }, - }, -- { } -+ { NULL, NULL, {DMI_MATCH(DMI_NONE, {0})}, NULL } - }; - - #endif /* CONFIG_X86 */ -diff -urNp linux-2.6.28.8/drivers/input/serio/serio_raw.c linux-2.6.28.8/drivers/input/serio/serio_raw.c ---- linux-2.6.28.8/drivers/input/serio/serio_raw.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/drivers/input/serio/serio_raw.c 2009-02-21 09:37:48.000000000 -0500 -@@ -378,7 +378,7 @@ static struct serio_device_id serio_raw_ - .id = SERIO_ANY, - .extra = SERIO_ANY, - }, -- { 0 } -+ { 0, 0, 0, 0 } - }; - - MODULE_DEVICE_TABLE(serio, serio_raw_serio_ids); -diff -urNp linux-2.6.28.8/drivers/lguest/core.c linux-2.6.28.8/drivers/lguest/core.c ---- linux-2.6.28.8/drivers/lguest/core.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/drivers/lguest/core.c 2009-03-07 10:28:24.000000000 -0500 -@@ -80,9 +80,17 @@ static __init int map_switcher(void) - * (SWITCHER_ADDR). We might not get it in theory, but in practice - * it's worked so far. The end address needs +1 because __get_vm_area - * allocates an extra guard page, so we need space for that. */ -+ -+#if defined(CONFIG_MODULES) && defined(CONFIG_X86_32) && defined(CONFIG_PAX_KERNEXEC) -+ switcher_vma = __get_vm_area(TOTAL_SWITCHER_PAGES * PAGE_SIZE, -+ VM_ALLOC | VM_KERNEXEC, SWITCHER_ADDR, SWITCHER_ADDR -+ + (TOTAL_SWITCHER_PAGES+1) * PAGE_SIZE); -+#else - switcher_vma = __get_vm_area(TOTAL_SWITCHER_PAGES * PAGE_SIZE, - VM_ALLOC, SWITCHER_ADDR, SWITCHER_ADDR - + (TOTAL_SWITCHER_PAGES+1) * PAGE_SIZE); -+#endif -+ - if (!switcher_vma) { - err = -ENOMEM; - printk("lguest: could not map switcher pages high\n"); -diff -urNp linux-2.6.28.8/drivers/md/bitmap.c linux-2.6.28.8/drivers/md/bitmap.c ---- linux-2.6.28.8/drivers/md/bitmap.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/drivers/md/bitmap.c 2009-02-21 09:37:48.000000000 -0500 -@@ -57,7 +57,7 @@ - # if DEBUG > 0 - # define PRINTK(x...) printk(KERN_DEBUG x) - # else --# define PRINTK(x...) -+# define PRINTK(x...) do {} while (0) - # endif - #endif - -diff -urNp linux-2.6.28.8/drivers/mtd/devices/doc2000.c linux-2.6.28.8/drivers/mtd/devices/doc2000.c ---- linux-2.6.28.8/drivers/mtd/devices/doc2000.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/drivers/mtd/devices/doc2000.c 2009-02-21 09:37:48.000000000 -0500 -@@ -777,7 +777,7 @@ static int doc_write(struct mtd_info *mt - - /* The ECC will not be calculated correctly if less than 512 is written */ - /* DBB- -- if (len != 0x200 && eccbuf) -+ if (len != 0x200) - printk(KERN_WARNING - "ECC needs a full sector write (adr: %lx size %lx)\n", - (long) to, (long) len); -diff -urNp linux-2.6.28.8/drivers/mtd/devices/doc2001.c linux-2.6.28.8/drivers/mtd/devices/doc2001.c ---- linux-2.6.28.8/drivers/mtd/devices/doc2001.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/drivers/mtd/devices/doc2001.c 2009-02-21 09:37:48.000000000 -0500 -@@ -396,6 +396,8 @@ static int doc_read (struct mtd_info *mt - /* Don't allow read past end of device */ - if (from >= this->totlen) - return -EINVAL; -+ if (!len) -+ return -EINVAL; - - /* Don't allow a single read to cross a 512-byte block boundary */ - if (from + len > ((from | 0x1ff) + 1)) -diff -urNp linux-2.6.28.8/drivers/mtd/devices/slram.c linux-2.6.28.8/drivers/mtd/devices/slram.c ---- linux-2.6.28.8/drivers/mtd/devices/slram.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/drivers/mtd/devices/slram.c 2009-02-21 09:37:48.000000000 -0500 -@@ -273,7 +273,7 @@ static int parse_cmdline(char *devname, - } - T("slram: devname=%s, devstart=0x%lx, devlength=0x%lx\n", - devname, devstart, devlength); -- if ((devstart < 0) || (devlength < 0) || (devlength % SLRAM_BLK_SZ != 0)) { -+ if (devlength % SLRAM_BLK_SZ != 0) { - E("slram: Illegal start / length parameter.\n"); - return(-EINVAL); - } -diff -urNp linux-2.6.28.8/drivers/mtd/ubi/build.c linux-2.6.28.8/drivers/mtd/ubi/build.c ---- linux-2.6.28.8/drivers/mtd/ubi/build.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/drivers/mtd/ubi/build.c 2009-02-21 09:37:48.000000000 -0500 -@@ -1104,7 +1104,7 @@ static int __init bytes_str_to_int(const - unsigned long result; - - result = simple_strtoul(str, &endp, 0); -- if (str == endp || result < 0) { -+ if (str == endp) { - printk(KERN_ERR "UBI error: incorrect bytes count: \"%s\"\n", - str); - return -EINVAL; -diff -urNp linux-2.6.28.8/drivers/net/eepro100.c linux-2.6.28.8/drivers/net/eepro100.c ---- linux-2.6.28.8/drivers/net/eepro100.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/drivers/net/eepro100.c 2009-02-21 09:37:48.000000000 -0500 -@@ -47,7 +47,7 @@ static int rxdmacount /* = 0 */; - # define rx_align(skb) skb_reserve((skb), 2) - # define RxFD_ALIGNMENT __attribute__ ((aligned (2), packed)) - #else --# define rx_align(skb) -+# define rx_align(skb) do {} while (0) - # define RxFD_ALIGNMENT - #endif - -@@ -2334,33 +2334,33 @@ static void __devexit eepro100_remove_on - } - - static struct pci_device_id eepro100_pci_tbl[] = { -- { PCI_VENDOR_ID_INTEL, 0x1229, PCI_ANY_ID, PCI_ANY_ID, }, -- { PCI_VENDOR_ID_INTEL, 0x1209, PCI_ANY_ID, PCI_ANY_ID, }, -- { PCI_VENDOR_ID_INTEL, 0x1029, PCI_ANY_ID, PCI_ANY_ID, }, -- { PCI_VENDOR_ID_INTEL, 0x1030, PCI_ANY_ID, PCI_ANY_ID, }, -- { PCI_VENDOR_ID_INTEL, 0x1031, PCI_ANY_ID, PCI_ANY_ID, }, -- { PCI_VENDOR_ID_INTEL, 0x1032, PCI_ANY_ID, PCI_ANY_ID, }, -- { PCI_VENDOR_ID_INTEL, 0x1033, PCI_ANY_ID, PCI_ANY_ID, }, -- { PCI_VENDOR_ID_INTEL, 0x1034, PCI_ANY_ID, PCI_ANY_ID, }, -- { PCI_VENDOR_ID_INTEL, 0x1035, PCI_ANY_ID, PCI_ANY_ID, }, -- { PCI_VENDOR_ID_INTEL, 0x1036, PCI_ANY_ID, PCI_ANY_ID, }, -- { PCI_VENDOR_ID_INTEL, 0x1037, PCI_ANY_ID, PCI_ANY_ID, }, -- { PCI_VENDOR_ID_INTEL, 0x1038, PCI_ANY_ID, PCI_ANY_ID, }, -- { PCI_VENDOR_ID_INTEL, 0x1039, PCI_ANY_ID, PCI_ANY_ID, }, -- { PCI_VENDOR_ID_INTEL, 0x103A, PCI_ANY_ID, PCI_ANY_ID, }, -- { PCI_VENDOR_ID_INTEL, 0x103B, PCI_ANY_ID, PCI_ANY_ID, }, -- { PCI_VENDOR_ID_INTEL, 0x103C, PCI_ANY_ID, PCI_ANY_ID, }, -- { PCI_VENDOR_ID_INTEL, 0x103D, PCI_ANY_ID, PCI_ANY_ID, }, -- { PCI_VENDOR_ID_INTEL, 0x103E, PCI_ANY_ID, PCI_ANY_ID, }, -- { PCI_VENDOR_ID_INTEL, 0x1050, PCI_ANY_ID, PCI_ANY_ID, }, -- { PCI_VENDOR_ID_INTEL, 0x1059, PCI_ANY_ID, PCI_ANY_ID, }, -- { PCI_VENDOR_ID_INTEL, 0x1227, PCI_ANY_ID, PCI_ANY_ID, }, -- { PCI_VENDOR_ID_INTEL, 0x2449, PCI_ANY_ID, PCI_ANY_ID, }, -- { PCI_VENDOR_ID_INTEL, 0x2459, PCI_ANY_ID, PCI_ANY_ID, }, -- { PCI_VENDOR_ID_INTEL, 0x245D, PCI_ANY_ID, PCI_ANY_ID, }, -- { PCI_VENDOR_ID_INTEL, 0x5200, PCI_ANY_ID, PCI_ANY_ID, }, -- { PCI_VENDOR_ID_INTEL, 0x5201, PCI_ANY_ID, PCI_ANY_ID, }, -- { 0,} -+ { PCI_VENDOR_ID_INTEL, 0x1229, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 }, -+ { PCI_VENDOR_ID_INTEL, 0x1209, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 }, -+ { PCI_VENDOR_ID_INTEL, 0x1029, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 }, -+ { PCI_VENDOR_ID_INTEL, 0x1030, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 }, -+ { PCI_VENDOR_ID_INTEL, 0x1031, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 }, -+ { PCI_VENDOR_ID_INTEL, 0x1032, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 }, -+ { PCI_VENDOR_ID_INTEL, 0x1033, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 }, -+ { PCI_VENDOR_ID_INTEL, 0x1034, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 }, -+ { PCI_VENDOR_ID_INTEL, 0x1035, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 }, -+ { PCI_VENDOR_ID_INTEL, 0x1036, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 }, -+ { PCI_VENDOR_ID_INTEL, 0x1037, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 }, -+ { PCI_VENDOR_ID_INTEL, 0x1038, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 }, -+ { PCI_VENDOR_ID_INTEL, 0x1039, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 }, -+ { PCI_VENDOR_ID_INTEL, 0x103A, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 }, -+ { PCI_VENDOR_ID_INTEL, 0x103B, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 }, -+ { PCI_VENDOR_ID_INTEL, 0x103C, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 }, -+ { PCI_VENDOR_ID_INTEL, 0x103D, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 }, -+ { PCI_VENDOR_ID_INTEL, 0x103E, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 }, -+ { PCI_VENDOR_ID_INTEL, 0x1050, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 }, -+ { PCI_VENDOR_ID_INTEL, 0x1059, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 }, -+ { PCI_VENDOR_ID_INTEL, 0x1227, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 }, -+ { PCI_VENDOR_ID_INTEL, 0x2449, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 }, -+ { PCI_VENDOR_ID_INTEL, 0x2459, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 }, -+ { PCI_VENDOR_ID_INTEL, 0x245D, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 }, -+ { PCI_VENDOR_ID_INTEL, 0x5200, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 }, -+ { PCI_VENDOR_ID_INTEL, 0x5201, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 }, -+ { 0, 0, 0, 0, 0, 0, 0 } - }; - MODULE_DEVICE_TABLE(pci, eepro100_pci_tbl); - -diff -urNp linux-2.6.28.8/drivers/net/irda/vlsi_ir.c linux-2.6.28.8/drivers/net/irda/vlsi_ir.c ---- linux-2.6.28.8/drivers/net/irda/vlsi_ir.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/drivers/net/irda/vlsi_ir.c 2009-02-21 09:37:48.000000000 -0500 -@@ -906,13 +906,12 @@ static int vlsi_hard_start_xmit(struct s - /* no race - tx-ring already empty */ - vlsi_set_baud(idev, iobase); - netif_wake_queue(ndev); -- } -- else -- ; -+ } else { - /* keep the speed change pending like it would - * for any len>0 packet. tx completion interrupt - * will apply it when the tx ring becomes empty. - */ -+ } - spin_unlock_irqrestore(&idev->lock, flags); - dev_kfree_skb_any(skb); - return 0; -diff -urNp linux-2.6.28.8/drivers/net/pcnet32.c linux-2.6.28.8/drivers/net/pcnet32.c ---- linux-2.6.28.8/drivers/net/pcnet32.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/drivers/net/pcnet32.c 2009-02-21 09:37:48.000000000 -0500 -@@ -78,7 +78,7 @@ static int cards_found; - /* - * VLB I/O addresses - */ --static unsigned int pcnet32_portlist[] __initdata = -+static unsigned int pcnet32_portlist[] __devinitdata = - { 0x300, 0x320, 0x340, 0x360, 0 }; - - static int pcnet32_debug = 0; -diff -urNp linux-2.6.28.8/drivers/net/tg3.h linux-2.6.28.8/drivers/net/tg3.h ---- linux-2.6.28.8/drivers/net/tg3.h 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/drivers/net/tg3.h 2009-02-21 09:37:48.000000000 -0500 -@@ -102,6 +102,7 @@ - #define CHIPREV_ID_5750_A0 0x4000 - #define CHIPREV_ID_5750_A1 0x4001 - #define CHIPREV_ID_5750_A3 0x4003 -+#define CHIPREV_ID_5750_C1 0x4201 - #define CHIPREV_ID_5750_C2 0x4202 - #define CHIPREV_ID_5752_A0_HW 0x5000 - #define CHIPREV_ID_5752_A0 0x6000 -diff -urNp linux-2.6.28.8/drivers/net/wireless/iwlwifi/iwl3945-base.c linux-2.6.28.8/drivers/net/wireless/iwlwifi/iwl3945-base.c ---- linux-2.6.28.8/drivers/net/wireless/iwlwifi/iwl3945-base.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/drivers/net/wireless/iwlwifi/iwl3945-base.c 2009-02-21 09:37:48.000000000 -0500 -@@ -785,7 +785,7 @@ static int iwl3945_send_cmd_sync(struct - IWL_ERROR("Error: Response NULL in '%s'\n", - get_cmd_string(cmd->id)); - ret = -EIO; -- goto out; -+ goto cancel; - } - - ret = 0; -diff -urNp linux-2.6.28.8/drivers/pci/hotplug/cpqphp_nvram.c linux-2.6.28.8/drivers/pci/hotplug/cpqphp_nvram.c ---- linux-2.6.28.8/drivers/pci/hotplug/cpqphp_nvram.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/drivers/pci/hotplug/cpqphp_nvram.c 2009-02-21 09:37:48.000000000 -0500 -@@ -425,9 +425,13 @@ static u32 store_HRT (void __iomem *rom_ - - void compaq_nvram_init (void __iomem *rom_start) - { -+ -+#ifndef CONFIG_PAX_KERNEXEC - if (rom_start) { - compaq_int15_entry_point = (rom_start + ROM_INT15_PHY_ADDR - ROM_PHY_ADDR); - } -+#endif -+ - dbg("int15 entry = %p\n", compaq_int15_entry_point); - - /* initialize our int15 lock */ -diff -urNp linux-2.6.28.8/drivers/pci/pcie/aer/aerdrv.c linux-2.6.28.8/drivers/pci/pcie/aer/aerdrv.c ---- linux-2.6.28.8/drivers/pci/pcie/aer/aerdrv.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/drivers/pci/pcie/aer/aerdrv.c 2009-02-21 09:37:48.000000000 -0500 -@@ -59,7 +59,7 @@ static struct pcie_port_service_id aer_i - .port_type = PCIE_RC_PORT, - .service_type = PCIE_PORT_SERVICE_AER, - }, -- { /* end: all zeroes */ } -+ { 0, 0, 0, 0, 0, 0, 0, 0, 0 } - }; - - static struct pci_error_handlers aer_error_handlers = { -diff -urNp linux-2.6.28.8/drivers/pci/pcie/aer/aerdrv_core.c linux-2.6.28.8/drivers/pci/pcie/aer/aerdrv_core.c ---- linux-2.6.28.8/drivers/pci/pcie/aer/aerdrv_core.c 2009-03-07 10:24:49.000000000 -0500 -+++ linux-2.6.28.8/drivers/pci/pcie/aer/aerdrv_core.c 2009-03-07 10:29:51.000000000 -0500 -@@ -667,7 +667,7 @@ static void aer_isr_one_error(struct pci - struct aer_err_source *e_src) - { - struct device *s_device; -- struct aer_err_info e_info = {0, 0, 0,}; -+ struct aer_err_info e_info = {0, 0, 0, {0, 0, 0, 0}}; - int i; - u16 id; - -diff -urNp linux-2.6.28.8/drivers/pci/pcie/portdrv_pci.c linux-2.6.28.8/drivers/pci/pcie/portdrv_pci.c ---- linux-2.6.28.8/drivers/pci/pcie/portdrv_pci.c 2009-03-07 10:24:49.000000000 -0500 -+++ linux-2.6.28.8/drivers/pci/pcie/portdrv_pci.c 2009-03-07 10:29:51.000000000 -0500 -@@ -263,7 +263,7 @@ static void pcie_portdrv_err_resume(stru - static const struct pci_device_id port_pci_ids[] = { { - /* handle any PCI-Express port */ - PCI_DEVICE_CLASS(((PCI_CLASS_BRIDGE_PCI << 8) | 0x00), ~0), -- }, { /* end: all zeroes */ } -+ }, { 0, 0, 0, 0, 0, 0, 0 } - }; - MODULE_DEVICE_TABLE(pci, port_pci_ids); - -diff -urNp linux-2.6.28.8/drivers/pci/proc.c linux-2.6.28.8/drivers/pci/proc.c ---- linux-2.6.28.8/drivers/pci/proc.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/drivers/pci/proc.c 2009-02-21 09:37:48.000000000 -0500 -@@ -470,7 +470,16 @@ static const struct file_operations proc - static int __init pci_proc_init(void) - { - struct pci_dev *dev = NULL; -+ -+#ifdef CONFIG_GRKERNSEC_PROC_ADD -+#ifdef CONFIG_GRKERNSEC_PROC_USER -+ proc_bus_pci_dir = proc_mkdir_mode("bus/pci", S_IRUSR | S_IXUSR, NULL); -+#elif defined(CONFIG_GRKERNSEC_PROC_USERGROUP) -+ proc_bus_pci_dir = proc_mkdir_mode("bus/pci", S_IRUSR | S_IXUSR | S_IRGRP | S_IXGRP, NULL); -+#endif -+#else - proc_bus_pci_dir = proc_mkdir("bus/pci", NULL); -+#endif - proc_create("devices", 0, proc_bus_pci_dir, - &proc_bus_pci_dev_operations); - proc_initialized = 1; -diff -urNp linux-2.6.28.8/drivers/pcmcia/ti113x.h linux-2.6.28.8/drivers/pcmcia/ti113x.h ---- linux-2.6.28.8/drivers/pcmcia/ti113x.h 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/drivers/pcmcia/ti113x.h 2009-02-21 09:37:48.000000000 -0500 -@@ -903,7 +903,7 @@ static struct pci_device_id ene_tune_tbl - DEVID(PCI_VENDOR_ID_MOTOROLA, 0x3410, 0xECC0, PCI_ANY_ID, - ENE_TEST_C9_TLTENABLE | ENE_TEST_C9_PFENABLE, ENE_TEST_C9_TLTENABLE), - -- {} -+ { 0, 0, 0, 0, 0, 0, 0 } - }; - - static void ene_tune_bridge(struct pcmcia_socket *sock, struct pci_bus *bus) -diff -urNp linux-2.6.28.8/drivers/pcmcia/yenta_socket.c linux-2.6.28.8/drivers/pcmcia/yenta_socket.c ---- linux-2.6.28.8/drivers/pcmcia/yenta_socket.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/drivers/pcmcia/yenta_socket.c 2009-02-21 09:37:48.000000000 -0500 -@@ -1366,7 +1366,7 @@ static struct pci_device_id yenta_table - - /* match any cardbus bridge */ - CB_ID(PCI_ANY_ID, PCI_ANY_ID, DEFAULT), -- { /* all zeroes */ } -+ { 0, 0, 0, 0, 0, 0, 0 } - }; - MODULE_DEVICE_TABLE(pci, yenta_table); - -diff -urNp linux-2.6.28.8/drivers/pnp/pnpbios/bioscalls.c linux-2.6.28.8/drivers/pnp/pnpbios/bioscalls.c ---- linux-2.6.28.8/drivers/pnp/pnpbios/bioscalls.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/drivers/pnp/pnpbios/bioscalls.c 2009-02-21 09:37:48.000000000 -0500 -@@ -60,7 +60,7 @@ set_base(gdt[(selname) >> 3], (u32)(addr - set_limit(gdt[(selname) >> 3], size); \ - } while(0) - --static struct desc_struct bad_bios_desc; -+static struct desc_struct bad_bios_desc __read_only; - - /* - * At some point we want to use this stack frame pointer to unwind -@@ -87,6 +87,10 @@ static inline u16 call_pnp_bios(u16 func - struct desc_struct save_desc_40; - int cpu; - -+#ifdef CONFIG_PAX_KERNEXEC -+ unsigned long cr0; -+#endif -+ - /* - * PnP BIOSes are generally not terribly re-entrant. - * Also, don't rely on them to save everything correctly. -@@ -96,8 +100,17 @@ static inline u16 call_pnp_bios(u16 func - - cpu = get_cpu(); - save_desc_40 = get_cpu_gdt_table(cpu)[0x40 / 8]; -+ -+#ifdef CONFIG_PAX_KERNEXEC -+ pax_open_kernel(cr0); -+#endif -+ - get_cpu_gdt_table(cpu)[0x40 / 8] = bad_bios_desc; - -+#ifdef CONFIG_PAX_KERNEXEC -+ pax_close_kernel(cr0); -+#endif -+ - /* On some boxes IRQ's during PnP BIOS calls are deadly. */ - spin_lock_irqsave(&pnp_bios_lock, flags); - -@@ -134,7 +147,16 @@ static inline u16 call_pnp_bios(u16 func - :"memory"); - spin_unlock_irqrestore(&pnp_bios_lock, flags); - -+#ifdef CONFIG_PAX_KERNEXEC -+ pax_open_kernel(cr0); -+#endif -+ - get_cpu_gdt_table(cpu)[0x40 / 8] = save_desc_40; -+ -+#ifdef CONFIG_PAX_KERNEXEC -+ pax_close_kernel(cr0); -+#endif -+ - put_cpu(); - - /* If we get here and this is set then the PnP BIOS faulted on us. */ -@@ -468,16 +490,24 @@ int pnp_bios_read_escd(char *data, u32 n - return status; - } - --void pnpbios_calls_init(union pnp_bios_install_struct *header) -+void __init pnpbios_calls_init(union pnp_bios_install_struct *header) - { - int i; - -+#ifdef CONFIG_PAX_KERNEXEC -+ unsigned long cr0; -+#endif -+ - spin_lock_init(&pnp_bios_lock); - pnp_bios_callpoint.offset = header->fields.pm16offset; - pnp_bios_callpoint.segment = PNP_CS16; - -+#ifdef CONFIG_PAX_KERNEXEC -+ pax_open_kernel(cr0); -+#endif -+ - bad_bios_desc.a = 0; -- bad_bios_desc.b = 0x00409200; -+ bad_bios_desc.b = 0x00409300; - - set_base(bad_bios_desc, __va((unsigned long)0x40 << 4)); - _set_limit((char *)&bad_bios_desc, 4095 - (0x40 << 4)); -@@ -491,4 +521,9 @@ void pnpbios_calls_init(union pnp_bios_i - set_base(gdt[GDT_ENTRY_PNPBIOS_DS], - __va(header->fields.pm16dseg)); - } -+ -+#ifdef CONFIG_PAX_KERNEXEC -+ pax_close_kernel(cr0); -+#endif -+ - } -diff -urNp linux-2.6.28.8/drivers/pnp/quirks.c linux-2.6.28.8/drivers/pnp/quirks.c ---- linux-2.6.28.8/drivers/pnp/quirks.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/drivers/pnp/quirks.c 2009-02-21 09:37:48.000000000 -0500 -@@ -327,7 +327,7 @@ static struct pnp_fixup pnp_fixups[] = { - /* PnP resources that might overlap PCI BARs */ - {"PNP0c01", quirk_system_pci_resources}, - {"PNP0c02", quirk_system_pci_resources}, -- {""} -+ {"", NULL} - }; - - void pnp_fixup_device(struct pnp_dev *dev) -diff -urNp linux-2.6.28.8/drivers/pnp/resource.c linux-2.6.28.8/drivers/pnp/resource.c ---- linux-2.6.28.8/drivers/pnp/resource.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/drivers/pnp/resource.c 2009-02-21 09:37:48.000000000 -0500 -@@ -355,7 +355,7 @@ int pnp_check_irq(struct pnp_dev *dev, s - return 1; - - /* check if the resource is valid */ -- if (*irq < 0 || *irq > 15) -+ if (*irq > 15) - return 0; - - /* check if the resource is reserved */ -@@ -419,7 +419,7 @@ int pnp_check_dma(struct pnp_dev *dev, s - return 1; - - /* check if the resource is valid */ -- if (*dma < 0 || *dma == 4 || *dma > 7) -+ if (*dma == 4 || *dma > 7) - return 0; - - /* check if the resource is reserved */ -diff -urNp linux-2.6.28.8/drivers/scsi/scsi_logging.h linux-2.6.28.8/drivers/scsi/scsi_logging.h ---- linux-2.6.28.8/drivers/scsi/scsi_logging.h 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/drivers/scsi/scsi_logging.h 2009-02-21 09:37:48.000000000 -0500 -@@ -51,7 +51,7 @@ do { \ - } while (0); \ - } while (0) - #else --#define SCSI_CHECK_LOGGING(SHIFT, BITS, LEVEL, CMD) -+#define SCSI_CHECK_LOGGING(SHIFT, BITS, LEVEL, CMD) do {} while (0) - #endif /* CONFIG_SCSI_LOGGING */ - - /* -diff -urNp linux-2.6.28.8/drivers/serial/8250_pci.c linux-2.6.28.8/drivers/serial/8250_pci.c ---- linux-2.6.28.8/drivers/serial/8250_pci.c 2009-03-07 10:24:49.000000000 -0500 -+++ linux-2.6.28.8/drivers/serial/8250_pci.c 2009-03-07 10:29:51.000000000 -0500 -@@ -3138,7 +3138,7 @@ static struct pci_device_id serial_pci_t - PCI_ANY_ID, PCI_ANY_ID, - PCI_CLASS_COMMUNICATION_MULTISERIAL << 8, - 0xffff00, pbn_default }, -- { 0, } -+ { 0, 0, 0, 0, 0, 0, 0 } - }; - - static struct pci_driver serial_pci_driver = { -diff -urNp linux-2.6.28.8/drivers/usb/class/cdc-acm.c linux-2.6.28.8/drivers/usb/class/cdc-acm.c ---- linux-2.6.28.8/drivers/usb/class/cdc-acm.c 2009-03-07 10:24:49.000000000 -0500 -+++ linux-2.6.28.8/drivers/usb/class/cdc-acm.c 2009-03-07 10:29:51.000000000 -0500 -@@ -1388,7 +1388,7 @@ static struct usb_device_id acm_ids[] = - USB_CDC_ACM_PROTO_AT_CDMA) }, - - /* NOTE: COMM/ACM/0xff is likely MSFT RNDIS ... NOT a modem!! */ -- { } -+ { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 } - }; - - MODULE_DEVICE_TABLE (usb, acm_ids); -diff -urNp linux-2.6.28.8/drivers/usb/class/usblp.c linux-2.6.28.8/drivers/usb/class/usblp.c ---- linux-2.6.28.8/drivers/usb/class/usblp.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/drivers/usb/class/usblp.c 2009-02-21 09:37:48.000000000 -0500 -@@ -227,7 +227,7 @@ static const struct quirk_printer_struct - { 0x0409, 0xf1be, USBLP_QUIRK_BIDIR }, /* NEC Picty800 (HP OEM) */ - { 0x0482, 0x0010, USBLP_QUIRK_BIDIR }, /* Kyocera Mita FS 820, by zut <kernel@zut.de> */ - { 0x04b8, 0x0202, USBLP_QUIRK_BAD_CLASS }, /* Seiko Epson Receipt Printer M129C */ -- { 0, 0 } -+ { 0, 0, 0 } - }; - - static int usblp_wwait(struct usblp *usblp, int nonblock); -@@ -1402,7 +1402,7 @@ static struct usb_device_id usblp_ids [] - { USB_INTERFACE_INFO(7, 1, 2) }, - { USB_INTERFACE_INFO(7, 1, 3) }, - { USB_DEVICE(0x04b8, 0x0202) }, /* Seiko Epson Receipt Printer M129C */ -- { } /* Terminating entry */ -+ { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 } /* Terminating entry */ - }; - - MODULE_DEVICE_TABLE (usb, usblp_ids); -diff -urNp linux-2.6.28.8/drivers/usb/core/hub.c linux-2.6.28.8/drivers/usb/core/hub.c ---- linux-2.6.28.8/drivers/usb/core/hub.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/drivers/usb/core/hub.c 2009-02-21 09:37:48.000000000 -0500 -@@ -3194,7 +3194,7 @@ static struct usb_device_id hub_id_table - .bDeviceClass = USB_CLASS_HUB}, - { .match_flags = USB_DEVICE_ID_MATCH_INT_CLASS, - .bInterfaceClass = USB_CLASS_HUB}, -- { } /* Terminating entry */ -+ { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 } /* Terminating entry */ - }; - - MODULE_DEVICE_TABLE (usb, hub_id_table); -diff -urNp linux-2.6.28.8/drivers/usb/host/ehci-pci.c linux-2.6.28.8/drivers/usb/host/ehci-pci.c ---- linux-2.6.28.8/drivers/usb/host/ehci-pci.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/drivers/usb/host/ehci-pci.c 2009-02-21 09:37:48.000000000 -0500 -@@ -414,7 +414,7 @@ static const struct pci_device_id pci_id - PCI_DEVICE_CLASS(PCI_CLASS_SERIAL_USB_EHCI, ~0), - .driver_data = (unsigned long) &ehci_pci_hc_driver, - }, -- { /* end: all zeroes */ } -+ { 0, 0, 0, 0, 0, 0, 0 } - }; - MODULE_DEVICE_TABLE(pci, pci_ids); - -diff -urNp linux-2.6.28.8/drivers/usb/host/uhci-hcd.c linux-2.6.28.8/drivers/usb/host/uhci-hcd.c ---- linux-2.6.28.8/drivers/usb/host/uhci-hcd.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/drivers/usb/host/uhci-hcd.c 2009-02-21 09:37:48.000000000 -0500 -@@ -927,7 +927,7 @@ static const struct pci_device_id uhci_p - /* handle any USB UHCI controller */ - PCI_DEVICE_CLASS(PCI_CLASS_SERIAL_USB_UHCI, ~0), - .driver_data = (unsigned long) &uhci_driver, -- }, { /* end: all zeroes */ } -+ }, { 0, 0, 0, 0, 0, 0, 0 } - }; - - MODULE_DEVICE_TABLE(pci, uhci_pci_ids); -diff -urNp linux-2.6.28.8/drivers/usb/storage/debug.h linux-2.6.28.8/drivers/usb/storage/debug.h ---- linux-2.6.28.8/drivers/usb/storage/debug.h 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/drivers/usb/storage/debug.h 2009-02-21 09:37:48.000000000 -0500 -@@ -54,9 +54,9 @@ void usb_stor_show_sense( unsigned char - #define US_DEBUGPX(x...) printk( x ) - #define US_DEBUG(x) x - #else --#define US_DEBUGP(x...) --#define US_DEBUGPX(x...) --#define US_DEBUG(x) -+#define US_DEBUGP(x...) do {} while (0) -+#define US_DEBUGPX(x...) do {} while (0) -+#define US_DEBUG(x) do {} while (0) - #endif - - #endif -diff -urNp linux-2.6.28.8/drivers/usb/storage/usb.c linux-2.6.28.8/drivers/usb/storage/usb.c ---- linux-2.6.28.8/drivers/usb/storage/usb.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/drivers/usb/storage/usb.c 2009-02-21 09:37:48.000000000 -0500 -@@ -139,7 +139,7 @@ static struct usb_device_id storage_usb_ - #undef COMPLIANT_DEV - #undef USUAL_DEV - /* Terminating entry */ -- { } -+ { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 } - }; - - MODULE_DEVICE_TABLE (usb, storage_usb_ids); -@@ -182,7 +182,7 @@ static struct us_unusual_dev us_unusual_ - # undef USUAL_DEV - - /* Terminating entry */ -- { NULL } -+ { NULL, NULL, 0, 0, NULL } - }; - - -diff -urNp linux-2.6.28.8/drivers/uwb/wlp/messages.c linux-2.6.28.8/drivers/uwb/wlp/messages.c ---- linux-2.6.28.8/drivers/uwb/wlp/messages.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/drivers/uwb/wlp/messages.c 2009-02-21 09:37:48.000000000 -0500 -@@ -988,7 +988,7 @@ int wlp_parse_f0(struct wlp *wlp, struct - size_t len = skb->len; - size_t used; - ssize_t result; -- struct wlp_nonce enonce, rnonce; -+ struct wlp_nonce enonce = {{0}}, rnonce = {{0}}; - enum wlp_assc_error assc_err; - char enonce_buf[WLP_WSS_NONCE_STRSIZE]; - char rnonce_buf[WLP_WSS_NONCE_STRSIZE]; -diff -urNp linux-2.6.28.8/drivers/video/fbcmap.c linux-2.6.28.8/drivers/video/fbcmap.c ---- linux-2.6.28.8/drivers/video/fbcmap.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/drivers/video/fbcmap.c 2009-02-21 09:37:48.000000000 -0500 -@@ -250,8 +250,7 @@ int fb_set_user_cmap(struct fb_cmap_user - int rc, size = cmap->len * sizeof(u16); - struct fb_cmap umap; - -- if (cmap->start < 0 || (!info->fbops->fb_setcolreg && -- !info->fbops->fb_setcmap)) -+ if (!info->fbops->fb_setcolreg && !info->fbops->fb_setcmap) - return -EINVAL; - - memset(&umap, 0, sizeof(struct fb_cmap)); -diff -urNp linux-2.6.28.8/drivers/video/fbmem.c linux-2.6.28.8/drivers/video/fbmem.c ---- linux-2.6.28.8/drivers/video/fbmem.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/drivers/video/fbmem.c 2009-02-21 09:37:48.000000000 -0500 -@@ -393,7 +393,7 @@ static void fb_do_show_logo(struct fb_in - image->dx += image->width + 8; - } - } else if (rotate == FB_ROTATE_UD) { -- for (x = 0; x < num && image->dx >= 0; x++) { -+ for (x = 0; x < num && (__s32)image->dx >= 0; x++) { - info->fbops->fb_imageblit(info, image); - image->dx -= image->width + 8; - } -@@ -405,7 +405,7 @@ static void fb_do_show_logo(struct fb_in - image->dy += image->height + 8; - } - } else if (rotate == FB_ROTATE_CCW) { -- for (x = 0; x < num && image->dy >= 0; x++) { -+ for (x = 0; x < num && (__s32)image->dy >= 0; x++) { - info->fbops->fb_imageblit(info, image); - image->dy -= image->height + 8; - } -@@ -1090,7 +1090,7 @@ static long do_fb_ioctl(struct fb_info * - ret = -EINVAL; - break; - } -- if (con2fb.framebuffer < 0 || con2fb.framebuffer >= FB_MAX) { -+ if (con2fb.framebuffer >= FB_MAX) { - ret = -EINVAL; - break; - } -diff -urNp linux-2.6.28.8/drivers/video/fbmon.c linux-2.6.28.8/drivers/video/fbmon.c ---- linux-2.6.28.8/drivers/video/fbmon.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/drivers/video/fbmon.c 2009-02-21 09:37:48.000000000 -0500 -@@ -45,7 +45,7 @@ - #ifdef DEBUG - #define DPRINTK(fmt, args...) printk(fmt,## args) - #else --#define DPRINTK(fmt, args...) -+#define DPRINTK(fmt, args...) do {} while (0) - #endif - - #define FBMON_FIX_HEADER 1 -diff -urNp linux-2.6.28.8/drivers/video/i810/i810_accel.c linux-2.6.28.8/drivers/video/i810/i810_accel.c ---- linux-2.6.28.8/drivers/video/i810/i810_accel.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/drivers/video/i810/i810_accel.c 2009-02-21 09:37:48.000000000 -0500 -@@ -73,6 +73,7 @@ static inline int wait_for_space(struct - } - } - printk("ringbuffer lockup!!!\n"); -+ printk("head:%u tail:%u iring.size:%u space:%u\n", head, tail, par->iring.size, space); - i810_report_error(mmio); - par->dev_flags |= LOCKUP; - info->pixmap.scan_align = 1; -diff -urNp linux-2.6.28.8/drivers/video/i810/i810_main.c linux-2.6.28.8/drivers/video/i810/i810_main.c ---- linux-2.6.28.8/drivers/video/i810/i810_main.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/drivers/video/i810/i810_main.c 2009-03-07 14:10:58.000000000 -0500 -@@ -120,7 +120,7 @@ static struct pci_device_id i810fb_pci_t - PCI_ANY_ID, PCI_ANY_ID, 0, 0, 4 }, - { PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82815_CGC, - PCI_ANY_ID, PCI_ANY_ID, 0, 0, 5 }, -- { 0 }, -+ { 0, 0, 0, 0, 0, 0, 0 }, - }; - - static struct pci_driver i810fb_driver = { -diff -urNp linux-2.6.28.8/drivers/video/modedb.c linux-2.6.28.8/drivers/video/modedb.c ---- linux-2.6.28.8/drivers/video/modedb.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/drivers/video/modedb.c 2009-02-21 09:37:48.000000000 -0500 -@@ -38,232 +38,232 @@ static const struct fb_videomode modedb[ - { - /* 640x400 @ 70 Hz, 31.5 kHz hsync */ - NULL, 70, 640, 400, 39721, 40, 24, 39, 9, 96, 2, -- 0, FB_VMODE_NONINTERLACED -+ 0, FB_VMODE_NONINTERLACED, FB_MODE_IS_UNKNOWN - }, { - /* 640x480 @ 60 Hz, 31.5 kHz hsync */ - NULL, 60, 640, 480, 39721, 40, 24, 32, 11, 96, 2, -- 0, FB_VMODE_NONINTERLACED -+ 0, FB_VMODE_NONINTERLACED, FB_MODE_IS_UNKNOWN - }, { - /* 800x600 @ 56 Hz, 35.15 kHz hsync */ - NULL, 56, 800, 600, 27777, 128, 24, 22, 1, 72, 2, -- 0, FB_VMODE_NONINTERLACED -+ 0, FB_VMODE_NONINTERLACED, FB_MODE_IS_UNKNOWN - }, { - /* 1024x768 @ 87 Hz interlaced, 35.5 kHz hsync */ - NULL, 87, 1024, 768, 22271, 56, 24, 33, 8, 160, 8, -- 0, FB_VMODE_INTERLACED -+ 0, FB_VMODE_INTERLACED, FB_MODE_IS_UNKNOWN - }, { - /* 640x400 @ 85 Hz, 37.86 kHz hsync */ - NULL, 85, 640, 400, 31746, 96, 32, 41, 1, 64, 3, -- FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED -+ FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED, FB_MODE_IS_UNKNOWN - }, { - /* 640x480 @ 72 Hz, 36.5 kHz hsync */ - NULL, 72, 640, 480, 31746, 144, 40, 30, 8, 40, 3, -- 0, FB_VMODE_NONINTERLACED -+ 0, FB_VMODE_NONINTERLACED, FB_MODE_IS_UNKNOWN - }, { - /* 640x480 @ 75 Hz, 37.50 kHz hsync */ - NULL, 75, 640, 480, 31746, 120, 16, 16, 1, 64, 3, -- 0, FB_VMODE_NONINTERLACED -+ 0, FB_VMODE_NONINTERLACED, FB_MODE_IS_UNKNOWN - }, { - /* 800x600 @ 60 Hz, 37.8 kHz hsync */ - NULL, 60, 800, 600, 25000, 88, 40, 23, 1, 128, 4, -- FB_SYNC_HOR_HIGH_ACT|FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED -+ FB_SYNC_HOR_HIGH_ACT|FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED, FB_MODE_IS_UNKNOWN - }, { - /* 640x480 @ 85 Hz, 43.27 kHz hsync */ - NULL, 85, 640, 480, 27777, 80, 56, 25, 1, 56, 3, -- 0, FB_VMODE_NONINTERLACED -+ 0, FB_VMODE_NONINTERLACED, FB_MODE_IS_UNKNOWN - }, { - /* 1152x864 @ 89 Hz interlaced, 44 kHz hsync */ - NULL, 89, 1152, 864, 15384, 96, 16, 110, 1, 216, 10, -- 0, FB_VMODE_INTERLACED -+ 0, FB_VMODE_INTERLACED, FB_MODE_IS_UNKNOWN - }, { - /* 800x600 @ 72 Hz, 48.0 kHz hsync */ - NULL, 72, 800, 600, 20000, 64, 56, 23, 37, 120, 6, -- FB_SYNC_HOR_HIGH_ACT|FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED -+ FB_SYNC_HOR_HIGH_ACT|FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED, FB_MODE_IS_UNKNOWN - }, { - /* 1024x768 @ 60 Hz, 48.4 kHz hsync */ - NULL, 60, 1024, 768, 15384, 168, 8, 29, 3, 144, 6, -- 0, FB_VMODE_NONINTERLACED -+ 0, FB_VMODE_NONINTERLACED, FB_MODE_IS_UNKNOWN - }, { - /* 640x480 @ 100 Hz, 53.01 kHz hsync */ - NULL, 100, 640, 480, 21834, 96, 32, 36, 8, 96, 6, -- 0, FB_VMODE_NONINTERLACED -+ 0, FB_VMODE_NONINTERLACED, FB_MODE_IS_UNKNOWN - }, { - /* 1152x864 @ 60 Hz, 53.5 kHz hsync */ - NULL, 60, 1152, 864, 11123, 208, 64, 16, 4, 256, 8, -- 0, FB_VMODE_NONINTERLACED -+ 0, FB_VMODE_NONINTERLACED, FB_MODE_IS_UNKNOWN - }, { - /* 800x600 @ 85 Hz, 55.84 kHz hsync */ - NULL, 85, 800, 600, 16460, 160, 64, 36, 16, 64, 5, -- 0, FB_VMODE_NONINTERLACED -+ 0, FB_VMODE_NONINTERLACED, FB_MODE_IS_UNKNOWN - }, { - /* 1024x768 @ 70 Hz, 56.5 kHz hsync */ - NULL, 70, 1024, 768, 13333, 144, 24, 29, 3, 136, 6, -- 0, FB_VMODE_NONINTERLACED -+ 0, FB_VMODE_NONINTERLACED, FB_MODE_IS_UNKNOWN - }, { - /* 1280x1024 @ 87 Hz interlaced, 51 kHz hsync */ - NULL, 87, 1280, 1024, 12500, 56, 16, 128, 1, 216, 12, -- 0, FB_VMODE_INTERLACED -+ 0, FB_VMODE_INTERLACED, FB_MODE_IS_UNKNOWN - }, { - /* 800x600 @ 100 Hz, 64.02 kHz hsync */ - NULL, 100, 800, 600, 14357, 160, 64, 30, 4, 64, 6, -- 0, FB_VMODE_NONINTERLACED -+ 0, FB_VMODE_NONINTERLACED, FB_MODE_IS_UNKNOWN - }, { - /* 1024x768 @ 76 Hz, 62.5 kHz hsync */ - NULL, 76, 1024, 768, 11764, 208, 8, 36, 16, 120, 3, -- 0, FB_VMODE_NONINTERLACED -+ 0, FB_VMODE_NONINTERLACED, FB_MODE_IS_UNKNOWN - }, { - /* 1152x864 @ 70 Hz, 62.4 kHz hsync */ - NULL, 70, 1152, 864, 10869, 106, 56, 20, 1, 160, 10, -- 0, FB_VMODE_NONINTERLACED -+ 0, FB_VMODE_NONINTERLACED, FB_MODE_IS_UNKNOWN - }, { - /* 1280x1024 @ 61 Hz, 64.2 kHz hsync */ - NULL, 61, 1280, 1024, 9090, 200, 48, 26, 1, 184, 3, -- 0, FB_VMODE_NONINTERLACED -+ 0, FB_VMODE_NONINTERLACED, FB_MODE_IS_UNKNOWN - }, { - /* 1400x1050 @ 60Hz, 63.9 kHz hsync */ - NULL, 60, 1400, 1050, 9259, 136, 40, 13, 1, 112, 3, -- 0, FB_VMODE_NONINTERLACED -+ 0, FB_VMODE_NONINTERLACED, FB_MODE_IS_UNKNOWN - }, { - /* 1400x1050 @ 75,107 Hz, 82,392 kHz +hsync +vsync*/ - NULL, 75, 1400, 1050, 7190, 120, 56, 23, 10, 112, 13, -- FB_SYNC_HOR_HIGH_ACT|FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED -+ FB_SYNC_HOR_HIGH_ACT|FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED, FB_MODE_IS_UNKNOWN - }, { - /* 1400x1050 @ 60 Hz, ? kHz +hsync +vsync*/ - NULL, 60, 1400, 1050, 9259, 128, 40, 12, 0, 112, 3, -- FB_SYNC_HOR_HIGH_ACT|FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED -+ FB_SYNC_HOR_HIGH_ACT|FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED, FB_MODE_IS_UNKNOWN - }, { - /* 1024x768 @ 85 Hz, 70.24 kHz hsync */ - NULL, 85, 1024, 768, 10111, 192, 32, 34, 14, 160, 6, -- 0, FB_VMODE_NONINTERLACED -+ 0, FB_VMODE_NONINTERLACED, FB_MODE_IS_UNKNOWN - }, { - /* 1152x864 @ 78 Hz, 70.8 kHz hsync */ - NULL, 78, 1152, 864, 9090, 228, 88, 32, 0, 84, 12, -- 0, FB_VMODE_NONINTERLACED -+ 0, FB_VMODE_NONINTERLACED, FB_MODE_IS_UNKNOWN - }, { - /* 1280x1024 @ 70 Hz, 74.59 kHz hsync */ - NULL, 70, 1280, 1024, 7905, 224, 32, 28, 8, 160, 8, -- 0, FB_VMODE_NONINTERLACED -+ 0, FB_VMODE_NONINTERLACED, FB_MODE_IS_UNKNOWN - }, { - /* 1600x1200 @ 60Hz, 75.00 kHz hsync */ - NULL, 60, 1600, 1200, 6172, 304, 64, 46, 1, 192, 3, -- FB_SYNC_HOR_HIGH_ACT|FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED -+ FB_SYNC_HOR_HIGH_ACT|FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED, FB_MODE_IS_UNKNOWN - }, { - /* 1152x864 @ 84 Hz, 76.0 kHz hsync */ - NULL, 84, 1152, 864, 7407, 184, 312, 32, 0, 128, 12, -- 0, FB_VMODE_NONINTERLACED -+ 0, FB_VMODE_NONINTERLACED, FB_MODE_IS_UNKNOWN - }, { - /* 1280x1024 @ 74 Hz, 78.85 kHz hsync */ - NULL, 74, 1280, 1024, 7407, 256, 32, 34, 3, 144, 3, -- 0, FB_VMODE_NONINTERLACED -+ 0, FB_VMODE_NONINTERLACED, FB_MODE_IS_UNKNOWN - }, { - /* 1024x768 @ 100Hz, 80.21 kHz hsync */ - NULL, 100, 1024, 768, 8658, 192, 32, 21, 3, 192, 10, -- 0, FB_VMODE_NONINTERLACED -+ 0, FB_VMODE_NONINTERLACED, FB_MODE_IS_UNKNOWN - }, { - /* 1280x1024 @ 76 Hz, 81.13 kHz hsync */ - NULL, 76, 1280, 1024, 7407, 248, 32, 34, 3, 104, 3, -- 0, FB_VMODE_NONINTERLACED -+ 0, FB_VMODE_NONINTERLACED, FB_MODE_IS_UNKNOWN - }, { - /* 1600x1200 @ 70 Hz, 87.50 kHz hsync */ - NULL, 70, 1600, 1200, 5291, 304, 64, 46, 1, 192, 3, -- 0, FB_VMODE_NONINTERLACED -+ 0, FB_VMODE_NONINTERLACED, FB_MODE_IS_UNKNOWN - }, { - /* 1152x864 @ 100 Hz, 89.62 kHz hsync */ - NULL, 100, 1152, 864, 7264, 224, 32, 17, 2, 128, 19, -- 0, FB_VMODE_NONINTERLACED -+ 0, FB_VMODE_NONINTERLACED, FB_MODE_IS_UNKNOWN - }, { - /* 1280x1024 @ 85 Hz, 91.15 kHz hsync */ - NULL, 85, 1280, 1024, 6349, 224, 64, 44, 1, 160, 3, -- FB_SYNC_HOR_HIGH_ACT|FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED -+ FB_SYNC_HOR_HIGH_ACT|FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED, FB_MODE_IS_UNKNOWN - }, { - /* 1600x1200 @ 75 Hz, 93.75 kHz hsync */ - NULL, 75, 1600, 1200, 4938, 304, 64, 46, 1, 192, 3, -- FB_SYNC_HOR_HIGH_ACT|FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED -+ FB_SYNC_HOR_HIGH_ACT|FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED, FB_MODE_IS_UNKNOWN - }, { - /* 1680x1050 @ 60 Hz, 65.191 kHz hsync */ - NULL, 60, 1680, 1050, 6848, 280, 104, 30, 3, 176, 6, -- FB_SYNC_HOR_HIGH_ACT|FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED -+ FB_SYNC_HOR_HIGH_ACT|FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED, FB_MODE_IS_UNKNOWN - }, { - /* 1600x1200 @ 85 Hz, 105.77 kHz hsync */ - NULL, 85, 1600, 1200, 4545, 272, 16, 37, 4, 192, 3, -- FB_SYNC_HOR_HIGH_ACT|FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED -+ FB_SYNC_HOR_HIGH_ACT|FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED, FB_MODE_IS_UNKNOWN - }, { - /* 1280x1024 @ 100 Hz, 107.16 kHz hsync */ - NULL, 100, 1280, 1024, 5502, 256, 32, 26, 7, 128, 15, -- 0, FB_VMODE_NONINTERLACED -+ 0, FB_VMODE_NONINTERLACED, FB_MODE_IS_UNKNOWN - }, { - /* 1800x1440 @ 64Hz, 96.15 kHz hsync */ - NULL, 64, 1800, 1440, 4347, 304, 96, 46, 1, 192, 3, -- FB_SYNC_HOR_HIGH_ACT|FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED -+ FB_SYNC_HOR_HIGH_ACT|FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED, FB_MODE_IS_UNKNOWN - }, { - /* 1800x1440 @ 70Hz, 104.52 kHz hsync */ - NULL, 70, 1800, 1440, 4000, 304, 96, 46, 1, 192, 3, -- FB_SYNC_HOR_HIGH_ACT|FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED -+ FB_SYNC_HOR_HIGH_ACT|FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED, FB_MODE_IS_UNKNOWN - }, { - /* 512x384 @ 78 Hz, 31.50 kHz hsync */ - NULL, 78, 512, 384, 49603, 48, 16, 16, 1, 64, 3, -- 0, FB_VMODE_NONINTERLACED -+ 0, FB_VMODE_NONINTERLACED, FB_MODE_IS_UNKNOWN - }, { - /* 512x384 @ 85 Hz, 34.38 kHz hsync */ - NULL, 85, 512, 384, 45454, 48, 16, 16, 1, 64, 3, -- 0, FB_VMODE_NONINTERLACED -+ 0, FB_VMODE_NONINTERLACED, FB_MODE_IS_UNKNOWN - }, { - /* 320x200 @ 70 Hz, 31.5 kHz hsync, 8:5 aspect ratio */ - NULL, 70, 320, 200, 79440, 16, 16, 20, 4, 48, 1, -- 0, FB_VMODE_DOUBLE -+ 0, FB_VMODE_DOUBLE, FB_MODE_IS_UNKNOWN - }, { - /* 320x240 @ 60 Hz, 31.5 kHz hsync, 4:3 aspect ratio */ - NULL, 60, 320, 240, 79440, 16, 16, 16, 5, 48, 1, -- 0, FB_VMODE_DOUBLE -+ 0, FB_VMODE_DOUBLE, FB_MODE_IS_UNKNOWN - }, { - /* 320x240 @ 72 Hz, 36.5 kHz hsync */ - NULL, 72, 320, 240, 63492, 16, 16, 16, 4, 48, 2, -- 0, FB_VMODE_DOUBLE -+ 0, FB_VMODE_DOUBLE, FB_MODE_IS_UNKNOWN - }, { - /* 400x300 @ 56 Hz, 35.2 kHz hsync, 4:3 aspect ratio */ - NULL, 56, 400, 300, 55555, 64, 16, 10, 1, 32, 1, -- 0, FB_VMODE_DOUBLE -+ 0, FB_VMODE_DOUBLE, FB_MODE_IS_UNKNOWN - }, { - /* 400x300 @ 60 Hz, 37.8 kHz hsync */ - NULL, 60, 400, 300, 50000, 48, 16, 11, 1, 64, 2, -- 0, FB_VMODE_DOUBLE -+ 0, FB_VMODE_DOUBLE, FB_MODE_IS_UNKNOWN - }, { - /* 400x300 @ 72 Hz, 48.0 kHz hsync */ - NULL, 72, 400, 300, 40000, 32, 24, 11, 19, 64, 3, -- 0, FB_VMODE_DOUBLE -+ 0, FB_VMODE_DOUBLE, FB_MODE_IS_UNKNOWN - }, { - /* 480x300 @ 56 Hz, 35.2 kHz hsync, 8:5 aspect ratio */ - NULL, 56, 480, 300, 46176, 80, 16, 10, 1, 40, 1, -- 0, FB_VMODE_DOUBLE -+ 0, FB_VMODE_DOUBLE, FB_MODE_IS_UNKNOWN - }, { - /* 480x300 @ 60 Hz, 37.8 kHz hsync */ - NULL, 60, 480, 300, 41858, 56, 16, 11, 1, 80, 2, -- 0, FB_VMODE_DOUBLE -+ 0, FB_VMODE_DOUBLE, FB_MODE_IS_UNKNOWN - }, { - /* 480x300 @ 63 Hz, 39.6 kHz hsync */ - NULL, 63, 480, 300, 40000, 56, 16, 11, 1, 80, 2, -- 0, FB_VMODE_DOUBLE -+ 0, FB_VMODE_DOUBLE, FB_MODE_IS_UNKNOWN - }, { - /* 480x300 @ 72 Hz, 48.0 kHz hsync */ - NULL, 72, 480, 300, 33386, 40, 24, 11, 19, 80, 3, -- 0, FB_VMODE_DOUBLE -+ 0, FB_VMODE_DOUBLE, FB_MODE_IS_UNKNOWN - }, { - /* 1920x1200 @ 60 Hz, 74.5 Khz hsync */ - NULL, 60, 1920, 1200, 5177, 128, 336, 1, 38, 208, 3, - FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT, -- FB_VMODE_NONINTERLACED -+ FB_VMODE_NONINTERLACED, FB_MODE_IS_UNKNOWN - }, { - /* 1152x768, 60 Hz, PowerBook G4 Titanium I and II */ - NULL, 60, 1152, 768, 14047, 158, 26, 29, 3, 136, 6, -- FB_SYNC_HOR_HIGH_ACT|FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED -+ FB_SYNC_HOR_HIGH_ACT|FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED, FB_MODE_IS_UNKNOWN - }, { - /* 1366x768, 60 Hz, 47.403 kHz hsync, WXGA 16:9 aspect ratio */ - NULL, 60, 1366, 768, 13806, 120, 10, 14, 3, 32, 5, -- 0, FB_VMODE_NONINTERLACED -+ 0, FB_VMODE_NONINTERLACED, FB_MODE_IS_UNKNOWN - }, { - /* 1280x800, 60 Hz, 47.403 kHz hsync, WXGA 16:10 aspect ratio */ - NULL, 60, 1280, 800, 12048, 200, 64, 24, 1, 136, 3, -- 0, FB_VMODE_NONINTERLACED -+ 0, FB_VMODE_NONINTERLACED, FB_MODE_IS_UNKNOWN - }, - }; - -diff -urNp linux-2.6.28.8/drivers/video/uvesafb.c linux-2.6.28.8/drivers/video/uvesafb.c ---- linux-2.6.28.8/drivers/video/uvesafb.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/drivers/video/uvesafb.c 2009-02-21 09:37:48.000000000 -0500 -@@ -18,6 +18,7 @@ - #include <linux/fb.h> - #include <linux/io.h> - #include <linux/mutex.h> -+#include <linux/moduleloader.h> - #include <video/edid.h> - #include <video/uvesafb.h> - #ifdef CONFIG_X86 -@@ -117,7 +118,7 @@ static int uvesafb_helper_start(void) - NULL, - }; - -- return call_usermodehelper(v86d_path, argv, envp, 1); -+ return call_usermodehelper(v86d_path, argv, envp, UMH_WAIT_PROC); - } - - /* -@@ -574,10 +575,34 @@ static int __devinit uvesafb_vbe_getpmi( - if ((task->t.regs.eax & 0xffff) != 0x4f || task->t.regs.es < 0xc000) { - par->pmi_setpal = par->ypan = 0; - } else { -+ -+#ifdef CONFIG_PAX_KERNEXEC -+#ifdef CONFIG_MODULES -+ unsigned long cr0; -+ -+ par->pmi_code = module_alloc_exec((u16)task->t.regs.ecx); -+#endif -+ if (!par->pmi_code) { -+ par->pmi_setpal = par->ypan = 0; -+ return 0; -+ } -+#endif -+ - par->pmi_base = (u16 *)phys_to_virt(((u32)task->t.regs.es << 4) - + task->t.regs.edi); -+ -+#if defined(CONFIG_MODULES) && defined(CONFIG_PAX_KERNEXEC) -+ pax_open_kernel(cr0); -+ memcpy(par->pmi_code, par->pmi_base, (u16)task->t.regs.ecx); -+ pax_close_kernel(cr0); -+ -+ par->pmi_start = ktva_ktla(par->pmi_code + par->pmi_base[1]); -+ par->pmi_pal = ktva_ktla(par->pmi_code + par->pmi_base[2]); -+#else - par->pmi_start = (u8 *)par->pmi_base + par->pmi_base[1]; - par->pmi_pal = (u8 *)par->pmi_base + par->pmi_base[2]; -+#endif -+ - printk(KERN_INFO "uvesafb: protected mode interface info at " - "%04x:%04x\n", - (u16)task->t.regs.es, (u16)task->t.regs.edi); -@@ -1832,6 +1857,11 @@ out: - if (par->vbe_modes) - kfree(par->vbe_modes); - -+#if defined(CONFIG_MODULES) && defined(CONFIG_PAX_KERNEXEC) -+ if (par->pmi_code) -+ module_free_exec(NULL, par->pmi_code); -+#endif -+ - framebuffer_release(info); - return err; - } -@@ -1858,6 +1888,12 @@ static int uvesafb_remove(struct platfor - kfree(par->vbe_state_orig); - if (par->vbe_state_saved) - kfree(par->vbe_state_saved); -+ -+#if defined(CONFIG_MODULES) && defined(CONFIG_PAX_KERNEXEC) -+ if (par->pmi_code) -+ module_free_exec(NULL, par->pmi_code); -+#endif -+ - } - - framebuffer_release(info); -diff -urNp linux-2.6.28.8/drivers/video/vesafb.c linux-2.6.28.8/drivers/video/vesafb.c ---- linux-2.6.28.8/drivers/video/vesafb.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/drivers/video/vesafb.c 2009-02-21 09:37:48.000000000 -0500 -@@ -9,6 +9,7 @@ - */ - - #include <linux/module.h> -+#include <linux/moduleloader.h> - #include <linux/kernel.h> - #include <linux/errno.h> - #include <linux/string.h> -@@ -53,8 +54,8 @@ static int vram_remap __initdata; /* - static int vram_total __initdata; /* Set total amount of memory */ - static int pmi_setpal __read_mostly = 1; /* pmi for palette changes ??? */ - static int ypan __read_mostly; /* 0..nothing, 1..ypan, 2..ywrap */ --static void (*pmi_start)(void) __read_mostly; --static void (*pmi_pal) (void) __read_mostly; -+static void (*pmi_start)(void) __read_only; -+static void (*pmi_pal) (void) __read_only; - static int depth __read_mostly; - static int vga_compat __read_mostly; - /* --------------------------------------------------------------------- */ -@@ -224,6 +225,7 @@ static int __init vesafb_probe(struct pl - unsigned int size_vmode; - unsigned int size_remap; - unsigned int size_total; -+ void *pmi_code = NULL; - - if (screen_info.orig_video_isVGA != VIDEO_TYPE_VLFB) - return -ENODEV; -@@ -266,10 +268,6 @@ static int __init vesafb_probe(struct pl - size_remap = size_total; - vesafb_fix.smem_len = size_remap; - --#ifndef __i386__ -- screen_info.vesapm_seg = 0; --#endif -- - if (!request_mem_region(vesafb_fix.smem_start, size_total, "vesafb")) { - printk(KERN_WARNING - "vesafb: cannot reserve video memory at 0x%lx\n", -@@ -302,9 +300,21 @@ static int __init vesafb_probe(struct pl - printk(KERN_INFO "vesafb: mode is %dx%dx%d, linelength=%d, pages=%d\n", - vesafb_defined.xres, vesafb_defined.yres, vesafb_defined.bits_per_pixel, vesafb_fix.line_length, screen_info.pages); - -+#ifdef __i386__ -+ -+#if defined(CONFIG_MODULES) && defined(CONFIG_PAX_KERNEXEC) -+ pmi_code = module_alloc_exec(screen_info.vesapm_size); -+ if (!pmi_code) -+#elif !defined(CONFIG_PAX_KERNEXEC) -+ if (0) -+#endif -+ -+#endif -+ screen_info.vesapm_seg = 0; -+ - if (screen_info.vesapm_seg) { -- printk(KERN_INFO "vesafb: protected mode interface info at %04x:%04x\n", -- screen_info.vesapm_seg,screen_info.vesapm_off); -+ printk(KERN_INFO "vesafb: protected mode interface info at %04x:%04x %04x bytes\n", -+ screen_info.vesapm_seg,screen_info.vesapm_off,screen_info.vesapm_size); - } - - if (screen_info.vesapm_seg < 0xc000) -@@ -312,9 +322,29 @@ static int __init vesafb_probe(struct pl - - if (ypan || pmi_setpal) { - unsigned short *pmi_base; -- pmi_base = (unsigned short*)phys_to_virt(((unsigned long)screen_info.vesapm_seg << 4) + screen_info.vesapm_off); -- pmi_start = (void*)((char*)pmi_base + pmi_base[1]); -- pmi_pal = (void*)((char*)pmi_base + pmi_base[2]); -+ -+#if defined(CONFIG_MODULES) && defined(CONFIG_PAX_KERNEXEC) -+ unsigned long cr0; -+#endif -+ -+ pmi_base = (unsigned short*)phys_to_virt(((unsigned long)screen_info.vesapm_seg << 4) + screen_info.vesapm_off); -+ -+#if defined(CONFIG_MODULES) && defined(CONFIG_PAX_KERNEXEC) -+ pax_open_kernel(cr0); -+ memcpy(pmi_code, pmi_base, screen_info.vesapm_size); -+#else -+ pmi_code = pmi_base; -+#endif -+ -+ pmi_start = (void*)((char*)pmi_code + pmi_base[1]); -+ pmi_pal = (void*)((char*)pmi_code + pmi_base[2]); -+ -+#if defined(CONFIG_MODULES) && defined(CONFIG_PAX_KERNEXEC) -+ pmi_start = ktva_ktla(pmi_start); -+ pmi_pal = ktva_ktla(pmi_pal); -+ pax_close_kernel(cr0); -+#endif -+ - printk(KERN_INFO "vesafb: pmi: set display start = %p, set palette = %p\n",pmi_start,pmi_pal); - if (pmi_base[3]) { - printk(KERN_INFO "vesafb: pmi: ports = "); -@@ -456,6 +486,11 @@ static int __init vesafb_probe(struct pl - info->node, info->fix.id); - return 0; - err: -+ -+#if defined(__i386__) && defined(CONFIG_MODULES) && defined(CONFIG_PAX_KERNEXEC) -+ module_free_exec(NULL, pmi_code); -+#endif -+ - if (info->screen_base) - iounmap(info->screen_base); - framebuffer_release(info); -diff -urNp linux-2.6.28.8/fs/9p/vfs_inode.c linux-2.6.28.8/fs/9p/vfs_inode.c ---- linux-2.6.28.8/fs/9p/vfs_inode.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/fs/9p/vfs_inode.c 2009-02-21 09:37:48.000000000 -0500 -@@ -1021,7 +1021,7 @@ static void *v9fs_vfs_follow_link(struct - static void - v9fs_vfs_put_link(struct dentry *dentry, struct nameidata *nd, void *p) - { -- char *s = nd_get_link(nd); -+ const char *s = nd_get_link(nd); - - P9_DPRINTK(P9_DEBUG_VFS, " %s %s\n", dentry->d_name.name, - IS_ERR(s) ? "<error>" : s); -diff -urNp linux-2.6.28.8/fs/aio.c linux-2.6.28.8/fs/aio.c ---- linux-2.6.28.8/fs/aio.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/fs/aio.c 2009-02-21 09:37:48.000000000 -0500 -@@ -114,7 +114,7 @@ static int aio_setup_ring(struct kioctx - size += sizeof(struct io_event) * nr_events; - nr_pages = (size + PAGE_SIZE-1) >> PAGE_SHIFT; - -- if (nr_pages < 0) -+ if (nr_pages <= 0) - return -EINVAL; - - nr_events = (PAGE_SIZE * nr_pages - sizeof(struct aio_ring)) / sizeof(struct io_event); -diff -urNp linux-2.6.28.8/fs/autofs4/symlink.c linux-2.6.28.8/fs/autofs4/symlink.c ---- linux-2.6.28.8/fs/autofs4/symlink.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/fs/autofs4/symlink.c 2009-02-21 09:37:48.000000000 -0500 -@@ -15,7 +15,7 @@ - static void *autofs4_follow_link(struct dentry *dentry, struct nameidata *nd) - { - struct autofs_info *ino = autofs4_dentry_ino(dentry); -- nd_set_link(nd, (char *)ino->u.symlink); -+ nd_set_link(nd, ino->u.symlink); - return NULL; - } - -diff -urNp linux-2.6.28.8/fs/befs/linuxvfs.c linux-2.6.28.8/fs/befs/linuxvfs.c ---- linux-2.6.28.8/fs/befs/linuxvfs.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/fs/befs/linuxvfs.c 2009-02-21 09:37:48.000000000 -0500 -@@ -490,7 +490,7 @@ static void befs_put_link(struct dentry - { - befs_inode_info *befs_ino = BEFS_I(dentry->d_inode); - if (befs_ino->i_flags & BEFS_LONG_SYMLINK) { -- char *link = nd_get_link(nd); -+ const char *link = nd_get_link(nd); - if (!IS_ERR(link)) - kfree(link); - } -diff -urNp linux-2.6.28.8/fs/binfmt_aout.c linux-2.6.28.8/fs/binfmt_aout.c ---- linux-2.6.28.8/fs/binfmt_aout.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/fs/binfmt_aout.c 2009-02-21 09:37:48.000000000 -0500 -@@ -16,6 +16,7 @@ - #include <linux/string.h> - #include <linux/fs.h> - #include <linux/file.h> -+#include <linux/security.h> - #include <linux/stat.h> - #include <linux/fcntl.h> - #include <linux/ptrace.h> -@@ -124,18 +125,22 @@ static int aout_core_dump(long signr, st - /* If the size of the dump file exceeds the rlimit, then see what would happen - if we wrote the stack, but not the data area. */ - #ifdef __sparc__ -+ gr_learn_resource(current, RLIMIT_CORE, dump.u_dsize + dump.u_ssize, 1); - if ((dump.u_dsize + dump.u_ssize) > limit) - dump.u_dsize = 0; - #else -+ gr_learn_resource(current, RLIMIT_CORE, (dump.u_dsize + dump.u_ssize+1) * PAGE_SIZE, 1); - if ((dump.u_dsize + dump.u_ssize+1) * PAGE_SIZE > limit) - dump.u_dsize = 0; - #endif - - /* Make sure we have enough room to write the stack and data areas. */ - #ifdef __sparc__ -+ gr_learn_resource(current, RLIMIT_CORE, dump.u_ssize, 1); - if (dump.u_ssize > limit) - dump.u_ssize = 0; - #else -+ gr_learn_resource(current, RLIMIT_CORE, (dump.u_ssize + 1) * PAGE_SIZE, 1); - if ((dump.u_ssize + 1) * PAGE_SIZE > limit) - dump.u_ssize = 0; - #endif -@@ -291,6 +296,8 @@ static int load_aout_binary(struct linux - rlim = current->signal->rlim[RLIMIT_DATA].rlim_cur; - if (rlim >= RLIM_INFINITY) - rlim = ~0; -+ -+ gr_learn_resource(current, RLIMIT_DATA, ex.a_data + ex.a_bss, 1); - if (ex.a_data + ex.a_bss > rlim) - return -ENOMEM; - -@@ -322,6 +329,28 @@ static int load_aout_binary(struct linux - - compute_creds(bprm); - current->flags &= ~PF_FORKNOEXEC; -+ -+#if defined(CONFIG_PAX_NOEXEC) || defined(CONFIG_PAX_ASLR) -+ current->mm->pax_flags = 0UL; -+#endif -+ -+#ifdef CONFIG_PAX_PAGEEXEC -+ if (!(N_FLAGS(ex) & F_PAX_PAGEEXEC)) { -+ current->mm->pax_flags |= MF_PAX_PAGEEXEC; -+ -+#ifdef CONFIG_PAX_EMUTRAMP -+ if (N_FLAGS(ex) & F_PAX_EMUTRAMP) -+ current->mm->pax_flags |= MF_PAX_EMUTRAMP; -+#endif -+ -+#ifdef CONFIG_PAX_MPROTECT -+ if (!(N_FLAGS(ex) & F_PAX_MPROTECT)) -+ current->mm->pax_flags |= MF_PAX_MPROTECT; -+#endif -+ -+ } -+#endif -+ - #ifdef __sparc__ - if (N_MAGIC(ex) == NMAGIC) { - loff_t pos = fd_offset; -@@ -413,7 +442,7 @@ static int load_aout_binary(struct linux - - down_write(¤t->mm->mmap_sem); - error = do_mmap(bprm->file, N_DATADDR(ex), ex.a_data, -- PROT_READ | PROT_WRITE | PROT_EXEC, -+ PROT_READ | PROT_WRITE, - MAP_FIXED | MAP_PRIVATE | MAP_DENYWRITE | MAP_EXECUTABLE, - fd_offset + ex.a_text); - up_write(¤t->mm->mmap_sem); -diff -urNp linux-2.6.28.8/fs/binfmt_elf.c linux-2.6.28.8/fs/binfmt_elf.c ---- linux-2.6.28.8/fs/binfmt_elf.c 2009-02-07 16:10:45.000000000 -0500 -+++ linux-2.6.28.8/fs/binfmt_elf.c 2009-03-07 04:29:14.000000000 -0500 -@@ -42,6 +42,10 @@ - #include <asm/param.h> - #include <asm/page.h> - -+#ifdef CONFIG_PAX_SEGMEXEC -+#include <asm/desc.h> -+#endif -+ - static int load_elf_binary(struct linux_binprm *bprm, struct pt_regs *regs); - static int load_elf_library(struct file *); - static unsigned long elf_map(struct file *, unsigned long, struct elf_phdr *, -@@ -57,6 +61,10 @@ static int elf_core_dump(long signr, str - #define elf_core_dump NULL - #endif - -+#ifdef CONFIG_PAX_MPROTECT -+static void elf_handle_mprotect(struct vm_area_struct *vma, unsigned long newflags); -+#endif -+ - #if ELF_EXEC_PAGESIZE > PAGE_SIZE - #define ELF_MIN_ALIGN ELF_EXEC_PAGESIZE - #else -@@ -76,6 +84,11 @@ static struct linux_binfmt elf_format = - .load_binary = load_elf_binary, - .load_shlib = load_elf_library, - .core_dump = elf_core_dump, -+ -+#ifdef CONFIG_PAX_MPROTECT -+ .handle_mprotect= elf_handle_mprotect, -+#endif -+ - .min_coredump = ELF_EXEC_PAGESIZE, - .hasvdso = 1 - }; -@@ -84,6 +97,8 @@ static struct linux_binfmt elf_format = - - static int set_brk(unsigned long start, unsigned long end) - { -+ unsigned long e = end; -+ - start = ELF_PAGEALIGN(start); - end = ELF_PAGEALIGN(end); - if (end > start) { -@@ -94,7 +109,7 @@ static int set_brk(unsigned long start, - if (BAD_ADDR(addr)) - return addr; - } -- current->mm->start_brk = current->mm->brk = end; -+ current->mm->start_brk = current->mm->brk = e; - return 0; - } - -@@ -380,10 +395,10 @@ static unsigned long load_elf_interp(str - { - struct elf_phdr *elf_phdata; - struct elf_phdr *eppnt; -- unsigned long load_addr = 0; -+ unsigned long load_addr = 0, pax_task_size = TASK_SIZE; - int load_addr_set = 0; - unsigned long last_bss = 0, elf_bss = 0; -- unsigned long error = ~0UL; -+ unsigned long error = -EINVAL; - unsigned long total_size; - int retval, i, size; - -@@ -429,6 +444,11 @@ static unsigned long load_elf_interp(str - goto out_close; - } - -+#ifdef CONFIG_PAX_SEGMEXEC -+ if (current->mm->pax_flags & MF_PAX_SEGMEXEC) -+ pax_task_size = SEGMEXEC_TASK_SIZE; -+#endif -+ - eppnt = elf_phdata; - for (i = 0; i < interp_elf_ex->e_phnum; i++, eppnt++) { - if (eppnt->p_type == PT_LOAD) { -@@ -472,8 +492,8 @@ static unsigned long load_elf_interp(str - k = load_addr + eppnt->p_vaddr; - if (BAD_ADDR(k) || - eppnt->p_filesz > eppnt->p_memsz || -- eppnt->p_memsz > TASK_SIZE || -- TASK_SIZE - eppnt->p_memsz < k) { -+ eppnt->p_memsz > pax_task_size || -+ pax_task_size - eppnt->p_memsz < k) { - error = -ENOMEM; - goto out_close; - } -@@ -527,6 +547,177 @@ out: - return error; - } - -+#if (defined(CONFIG_PAX_EI_PAX) || defined(CONFIG_PAX_PT_PAX_FLAGS)) && defined(CONFIG_PAX_SOFTMODE) -+static unsigned long pax_parse_softmode(const struct elf_phdr * const elf_phdata) -+{ -+ unsigned long pax_flags = 0UL; -+ -+#ifdef CONFIG_PAX_PAGEEXEC -+ if (elf_phdata->p_flags & PF_PAGEEXEC) -+ pax_flags |= MF_PAX_PAGEEXEC; -+#endif -+ -+#ifdef CONFIG_PAX_SEGMEXEC -+ if (elf_phdata->p_flags & PF_SEGMEXEC) -+ pax_flags |= MF_PAX_SEGMEXEC; -+#endif -+ -+#if defined(CONFIG_PAX_PAGEEXEC) && defined(CONFIG_PAX_SEGMEXEC) -+ if ((pax_flags & (MF_PAX_PAGEEXEC | MF_PAX_SEGMEXEC)) == (MF_PAX_PAGEEXEC | MF_PAX_SEGMEXEC)) { -+ if (nx_enabled) -+ pax_flags &= ~MF_PAX_SEGMEXEC; -+ else -+ pax_flags &= ~MF_PAX_PAGEEXEC; -+ } -+#endif -+ -+#ifdef CONFIG_PAX_EMUTRAMP -+ if (elf_phdata->p_flags & PF_EMUTRAMP) -+ pax_flags |= MF_PAX_EMUTRAMP; -+#endif -+ -+#ifdef CONFIG_PAX_MPROTECT -+ if (elf_phdata->p_flags & PF_MPROTECT) -+ pax_flags |= MF_PAX_MPROTECT; -+#endif -+ -+#if defined(CONFIG_PAX_RANDMMAP) || defined(CONFIG_PAX_RANDUSTACK) -+ if (randomize_va_space && (elf_phdata->p_flags & PF_RANDMMAP)) -+ pax_flags |= MF_PAX_RANDMMAP; -+#endif -+ -+ return pax_flags; -+} -+#endif -+ -+#ifdef CONFIG_PAX_PT_PAX_FLAGS -+static unsigned long pax_parse_hardmode(const struct elf_phdr * const elf_phdata) -+{ -+ unsigned long pax_flags = 0UL; -+ -+#ifdef CONFIG_PAX_PAGEEXEC -+ if (!(elf_phdata->p_flags & PF_NOPAGEEXEC)) -+ pax_flags |= MF_PAX_PAGEEXEC; -+#endif -+ -+#ifdef CONFIG_PAX_SEGMEXEC -+ if (!(elf_phdata->p_flags & PF_NOSEGMEXEC)) -+ pax_flags |= MF_PAX_SEGMEXEC; -+#endif -+ -+#if defined(CONFIG_PAX_PAGEEXEC) && defined(CONFIG_PAX_SEGMEXEC) -+ if ((pax_flags & (MF_PAX_PAGEEXEC | MF_PAX_SEGMEXEC)) == (MF_PAX_PAGEEXEC | MF_PAX_SEGMEXEC)) { -+ if (nx_enabled) -+ pax_flags &= ~MF_PAX_SEGMEXEC; -+ else -+ pax_flags &= ~MF_PAX_PAGEEXEC; -+ } -+#endif -+ -+#ifdef CONFIG_PAX_EMUTRAMP -+ if (!(elf_phdata->p_flags & PF_NOEMUTRAMP)) -+ pax_flags |= MF_PAX_EMUTRAMP; -+#endif -+ -+#ifdef CONFIG_PAX_MPROTECT -+ if (!(elf_phdata->p_flags & PF_NOMPROTECT)) -+ pax_flags |= MF_PAX_MPROTECT; -+#endif -+ -+#if defined(CONFIG_PAX_RANDMMAP) || defined(CONFIG_PAX_RANDUSTACK) -+ if (randomize_va_space && !(elf_phdata->p_flags & PF_NORANDMMAP)) -+ pax_flags |= MF_PAX_RANDMMAP; -+#endif -+ -+ return pax_flags; -+} -+#endif -+ -+#ifdef CONFIG_PAX_EI_PAX -+static unsigned long pax_parse_ei_pax(const struct elfhdr * const elf_ex) -+{ -+ unsigned long pax_flags = 0UL; -+ -+#ifdef CONFIG_PAX_PAGEEXEC -+ if (!(elf_ex->e_ident[EI_PAX] & EF_PAX_PAGEEXEC)) -+ pax_flags |= MF_PAX_PAGEEXEC; -+#endif -+ -+#ifdef CONFIG_PAX_SEGMEXEC -+ if (!(elf_ex->e_ident[EI_PAX] & EF_PAX_SEGMEXEC)) -+ pax_flags |= MF_PAX_SEGMEXEC; -+#endif -+ -+#if defined(CONFIG_PAX_PAGEEXEC) && defined(CONFIG_PAX_SEGMEXEC) -+ if ((pax_flags & (MF_PAX_PAGEEXEC | MF_PAX_SEGMEXEC)) == (MF_PAX_PAGEEXEC | MF_PAX_SEGMEXEC)) { -+ if (nx_enabled) -+ pax_flags &= ~MF_PAX_SEGMEXEC; -+ else -+ pax_flags &= ~MF_PAX_PAGEEXEC; -+ } -+#endif -+ -+#ifdef CONFIG_PAX_EMUTRAMP -+ if ((pax_flags & (MF_PAX_PAGEEXEC | MF_PAX_SEGMEXEC)) && (elf_ex->e_ident[EI_PAX] & EF_PAX_EMUTRAMP)) -+ pax_flags |= MF_PAX_EMUTRAMP; -+#endif -+ -+#ifdef CONFIG_PAX_MPROTECT -+ if ((pax_flags & (MF_PAX_PAGEEXEC | MF_PAX_SEGMEXEC)) && !(elf_ex->e_ident[EI_PAX] & EF_PAX_MPROTECT)) -+ pax_flags |= MF_PAX_MPROTECT; -+#endif -+ -+#ifdef CONFIG_PAX_ASLR -+ if (randomize_va_space && !(elf_ex->e_ident[EI_PAX] & EF_PAX_RANDMMAP)) -+ pax_flags |= MF_PAX_RANDMMAP; -+#endif -+ -+ return pax_flags; -+} -+#endif -+ -+#if defined(CONFIG_PAX_EI_PAX) || defined(CONFIG_PAX_PT_PAX_FLAGS) -+static long pax_parse_elf_flags(const struct elfhdr * const elf_ex, const struct elf_phdr * const elf_phdata) -+{ -+ unsigned long pax_flags = 0UL; -+ -+#ifdef CONFIG_PAX_PT_PAX_FLAGS -+ unsigned long i; -+#endif -+ -+#ifdef CONFIG_PAX_EI_PAX -+ pax_flags = pax_parse_ei_pax(elf_ex); -+#endif -+ -+#ifdef CONFIG_PAX_PT_PAX_FLAGS -+ for (i = 0UL; i < elf_ex->e_phnum; i++) -+ if (elf_phdata[i].p_type == PT_PAX_FLAGS) { -+ if (((elf_phdata[i].p_flags & PF_PAGEEXEC) && (elf_phdata[i].p_flags & PF_NOPAGEEXEC)) || -+ ((elf_phdata[i].p_flags & PF_SEGMEXEC) && (elf_phdata[i].p_flags & PF_NOSEGMEXEC)) || -+ ((elf_phdata[i].p_flags & PF_EMUTRAMP) && (elf_phdata[i].p_flags & PF_NOEMUTRAMP)) || -+ ((elf_phdata[i].p_flags & PF_MPROTECT) && (elf_phdata[i].p_flags & PF_NOMPROTECT)) || -+ ((elf_phdata[i].p_flags & PF_RANDMMAP) && (elf_phdata[i].p_flags & PF_NORANDMMAP))) -+ return -EINVAL; -+ -+#ifdef CONFIG_PAX_SOFTMODE -+ if (pax_softmode) -+ pax_flags = pax_parse_softmode(&elf_phdata[i]); -+ else -+#endif -+ -+ pax_flags = pax_parse_hardmode(&elf_phdata[i]); -+ break; -+ } -+#endif -+ -+ if (0 > pax_check_flags(&pax_flags)) -+ return -EINVAL; -+ -+ current->mm->pax_flags = pax_flags; -+ return 0; -+} -+#endif -+ - /* - * These are the functions used to load ELF style executables and shared - * libraries. There is no binary dependent code anywhere else. -@@ -543,6 +734,11 @@ static unsigned long randomize_stack_top - { - unsigned int random_variable = 0; - -+#ifdef CONFIG_PAX_RANDUSTACK -+ if (randomize_va_space) -+ return stack_top - current->mm->delta_stack; -+#endif -+ - if ((current->flags & PF_RANDOMIZE) && - !(current->personality & ADDR_NO_RANDOMIZE)) { - random_variable = get_random_int() & STACK_RND_MASK; -@@ -561,7 +757,7 @@ static int load_elf_binary(struct linux_ - unsigned long load_addr = 0, load_bias = 0; - int load_addr_set = 0; - char * elf_interpreter = NULL; -- unsigned long error; -+ unsigned long error = 0; - struct elf_phdr *elf_ppnt, *elf_phdata; - unsigned long elf_bss, elf_brk; - int elf_exec_fileno; -@@ -572,11 +768,11 @@ static int load_elf_binary(struct linux_ - unsigned long start_code, end_code, start_data, end_data; - unsigned long reloc_func_desc = 0; - int executable_stack = EXSTACK_DEFAULT; -- unsigned long def_flags = 0; - struct { - struct elfhdr elf_ex; - struct elfhdr interp_elf_ex; - } *loc; -+ unsigned long pax_task_size = TASK_SIZE; - - loc = kmalloc(sizeof(*loc), GFP_KERNEL); - if (!loc) { -@@ -744,11 +940,80 @@ static int load_elf_binary(struct linux_ - - /* OK, This is the point of no return */ - current->flags &= ~PF_FORKNOEXEC; -- current->mm->def_flags = def_flags; -+ -+#if defined(CONFIG_PAX_NOEXEC) || defined(CONFIG_PAX_ASLR) -+ current->mm->pax_flags = 0UL; -+#endif -+ -+#ifdef CONFIG_PAX_DLRESOLVE -+ current->mm->call_dl_resolve = 0UL; -+#endif -+ -+#if defined(CONFIG_PPC32) && defined(CONFIG_PAX_EMUSIGRT) -+ current->mm->call_syscall = 0UL; -+#endif -+ -+#ifdef CONFIG_PAX_ASLR -+ current->mm->delta_mmap = 0UL; -+ current->mm->delta_stack = 0UL; -+#endif -+ -+ current->mm->def_flags = 0; -+ -+#if defined(CONFIG_PAX_EI_PAX) || defined(CONFIG_PAX_PT_PAX_FLAGS) -+ if (0 > pax_parse_elf_flags(&loc->elf_ex, elf_phdata)) { -+ send_sig(SIGKILL, current, 0); -+ goto out_free_dentry; -+ } -+#endif -+ -+#ifdef CONFIG_PAX_HAVE_ACL_FLAGS -+ pax_set_initial_flags(bprm); -+#elif defined(CONFIG_PAX_HOOK_ACL_FLAGS) -+ if (pax_set_initial_flags_func) -+ (pax_set_initial_flags_func)(bprm); -+#endif -+ -+#ifdef CONFIG_ARCH_TRACK_EXEC_LIMIT -+ if ((current->mm->pax_flags & MF_PAX_PAGEEXEC) && !nx_enabled) { -+ current->mm->context.user_cs_limit = PAGE_SIZE; -+ current->mm->def_flags |= VM_PAGEEXEC; -+ } -+#endif -+ -+#ifdef CONFIG_PAX_SEGMEXEC -+ if (current->mm->pax_flags & MF_PAX_SEGMEXEC) { -+ current->mm->context.user_cs_base = SEGMEXEC_TASK_SIZE; -+ current->mm->context.user_cs_limit = TASK_SIZE-SEGMEXEC_TASK_SIZE; -+ pax_task_size = SEGMEXEC_TASK_SIZE; -+ } -+#endif -+ -+#if defined(CONFIG_ARCH_TRACK_EXEC_LIMIT) || defined(CONFIG_PAX_SEGMEXEC) -+ if (current->mm->pax_flags & (MF_PAX_PAGEEXEC | MF_PAX_SEGMEXEC)) { -+ set_user_cs(current->mm->context.user_cs_base, current->mm->context.user_cs_limit, get_cpu()); -+ put_cpu_no_resched(); -+ } -+#endif -+ -+#ifdef CONFIG_PAX_ASLR -+ if (current->mm->pax_flags & MF_PAX_RANDMMAP) { -+ current->mm->delta_mmap = (pax_get_random_long() & ((1UL << PAX_DELTA_MMAP_LEN)-1)) << PAGE_SHIFT; -+ current->mm->delta_stack = (pax_get_random_long() & ((1UL << PAX_DELTA_STACK_LEN)-1)) << PAGE_SHIFT; -+ } -+#endif - - /* Do this immediately, since STACK_TOP as used in setup_arg_pages - may depend on the personality. */ - SET_PERSONALITY(loc->elf_ex); -+ -+#if defined(CONFIG_PAX_PAGEEXEC) || defined(CONFIG_PAX_SEGMEXEC) -+ if (current->mm->pax_flags & (MF_PAX_PAGEEXEC | MF_PAX_SEGMEXEC)) { -+ executable_stack = EXSTACK_DISABLE_X; -+ current->personality &= ~READ_IMPLIES_EXEC; -+ } else -+#endif -+ - if (elf_read_implies_exec(loc->elf_ex, executable_stack)) - current->personality |= READ_IMPLIES_EXEC; - -@@ -829,6 +1094,20 @@ static int load_elf_binary(struct linux_ - #else - load_bias = ELF_PAGESTART(ELF_ET_DYN_BASE - vaddr); - #endif -+ -+#ifdef CONFIG_PAX_RANDMMAP -+ /* PaX: randomize base address at the default exe base if requested */ -+ if ((current->mm->pax_flags & MF_PAX_RANDMMAP) && elf_interpreter) { -+#ifdef CONFIG_SPARC64 -+ load_bias = (pax_get_random_long() & ((1UL << PAX_DELTA_MMAP_LEN) - 1)) << (PAGE_SHIFT+1); -+#else -+ load_bias = (pax_get_random_long() & ((1UL << PAX_DELTA_MMAP_LEN) - 1)) << PAGE_SHIFT; -+#endif -+ load_bias = ELF_PAGESTART(PAX_ELF_ET_DYN_BASE - vaddr + load_bias); -+ elf_flags |= MAP_FIXED; -+ } -+#endif -+ - } - - error = elf_map(bprm->file, load_bias + vaddr, elf_ppnt, -@@ -861,9 +1140,9 @@ static int load_elf_binary(struct linux_ - * allowed task size. Note that p_filesz must always be - * <= p_memsz so it is only necessary to check p_memsz. - */ -- if (BAD_ADDR(k) || elf_ppnt->p_filesz > elf_ppnt->p_memsz || -- elf_ppnt->p_memsz > TASK_SIZE || -- TASK_SIZE - elf_ppnt->p_memsz < k) { -+ if (k >= pax_task_size || elf_ppnt->p_filesz > elf_ppnt->p_memsz || -+ elf_ppnt->p_memsz > pax_task_size || -+ pax_task_size - elf_ppnt->p_memsz < k) { - /* set_brk can never work. Avoid overflows. */ - send_sig(SIGKILL, current, 0); - retval = -EINVAL; -@@ -891,6 +1170,11 @@ static int load_elf_binary(struct linux_ - start_data += load_bias; - end_data += load_bias; - -+#ifdef CONFIG_PAX_RANDMMAP -+ if (current->mm->pax_flags & MF_PAX_RANDMMAP) -+ elf_brk += PAGE_SIZE + ((pax_get_random_long() & ~PAGE_MASK) << 4); -+#endif -+ - /* Calling set_brk effectively mmaps the pages that we need - * for the bss and break sections. We must do this before - * mapping in the interpreter, to make sure it doesn't wind -@@ -902,9 +1186,11 @@ static int load_elf_binary(struct linux_ - goto out_free_dentry; - } - if (likely(elf_bss != elf_brk) && unlikely(padzero(elf_bss))) { -- send_sig(SIGSEGV, current, 0); -- retval = -EFAULT; /* Nobody gets to see this, but.. */ -- goto out_free_dentry; -+ /* -+ * This bss-zeroing can fail if the ELF -+ * file specifies odd protections. So -+ * we don't check the return value -+ */ - } - - if (elf_interpreter) { -@@ -1141,8 +1427,10 @@ static int dump_seek(struct file *file, - unsigned long n = off; - if (n > PAGE_SIZE) - n = PAGE_SIZE; -- if (!dump_write(file, buf, n)) -+ if (!dump_write(file, buf, n)) { -+ free_page((unsigned long)buf); - return 0; -+ } - off -= n; - } - free_page((unsigned long)buf); -@@ -1154,7 +1442,7 @@ static int dump_seek(struct file *file, - * Decide what to dump of a segment, part, all or none. - */ - static unsigned long vma_dump_size(struct vm_area_struct *vma, -- unsigned long mm_flags) -+ unsigned long mm_flags, long signr) - { - #define FILTER(type) (mm_flags & (1UL << MMF_DUMP_##type)) - -@@ -1188,7 +1476,7 @@ static unsigned long vma_dump_size(struc - if (vma->vm_file == NULL) - return 0; - -- if (FILTER(MAPPED_PRIVATE)) -+ if (signr == SIGKILL || FILTER(MAPPED_PRIVATE)) - goto whole; - - /* -@@ -1284,8 +1572,11 @@ static int writenote(struct memelfnote * - #undef DUMP_WRITE - - #define DUMP_WRITE(addr, nr) \ -+ do { \ -+ gr_learn_resource(current, RLIMIT_CORE, size + (nr), 1); \ - if ((size += (nr)) > limit || !dump_write(file, (addr), (nr))) \ -- goto end_coredump; -+ goto end_coredump; \ -+ } while (0); - #define DUMP_SEEK(off) \ - if (!dump_seek(file, (off))) \ - goto end_coredump; -@@ -1986,7 +2277,7 @@ static int elf_core_dump(long signr, str - phdr.p_offset = offset; - phdr.p_vaddr = vma->vm_start; - phdr.p_paddr = 0; -- phdr.p_filesz = vma_dump_size(vma, mm_flags); -+ phdr.p_filesz = vma_dump_size(vma, mm_flags, signr); - phdr.p_memsz = vma->vm_end - vma->vm_start; - offset += phdr.p_filesz; - phdr.p_flags = vma->vm_flags & VM_READ ? PF_R : 0; -@@ -2018,7 +2309,7 @@ static int elf_core_dump(long signr, str - unsigned long addr; - unsigned long end; - -- end = vma->vm_start + vma_dump_size(vma, mm_flags); -+ end = vma->vm_start + vma_dump_size(vma, mm_flags, signr); - - for (addr = vma->vm_start; addr < end; addr += PAGE_SIZE) { - struct page *page; -@@ -2038,6 +2329,7 @@ static int elf_core_dump(long signr, str - flush_cache_page(tmp_vma, addr, - page_to_pfn(page)); - kaddr = kmap(page); -+ gr_learn_resource(current, RLIMIT_CORE, size + PAGE_SIZE, 1); - if ((size += PAGE_SIZE) > limit || - !dump_write(file, kaddr, - PAGE_SIZE)) { -@@ -2068,6 +2360,99 @@ out: - - #endif /* USE_ELF_CORE_DUMP */ - -+#ifdef CONFIG_PAX_MPROTECT -+/* PaX: non-PIC ELF libraries need relocations on their executable segments -+ * therefore we'll grant them VM_MAYWRITE once during their life. Similarly -+ * we'll remove VM_MAYWRITE for good on RELRO segments. -+ * -+ * The checks favour ld-linux.so behaviour which operates on a per ELF segment -+ * basis because we want to allow the common case and not the special ones. -+ */ -+static void elf_handle_mprotect(struct vm_area_struct *vma, unsigned long newflags) -+{ -+ struct elfhdr elf_h; -+ struct elf_phdr elf_p; -+ unsigned long i; -+ unsigned long oldflags; -+ bool is_textrel_rw, is_textrel_rx, is_relro; -+ -+ if (!(vma->vm_mm->pax_flags & MF_PAX_MPROTECT)) -+ return; -+ -+ oldflags = vma->vm_flags & (VM_MAYEXEC | VM_MAYWRITE | VM_MAYREAD | VM_EXEC | VM_WRITE | VM_READ); -+ newflags &= VM_MAYEXEC | VM_MAYWRITE | VM_MAYREAD | VM_EXEC | VM_WRITE | VM_READ; -+ -+#ifdef CONFIG_PAX_NOELFRELOCS -+ is_textrel_rw = false; -+ is_textrel_rx = false; -+#else -+ /* possible TEXTREL */ -+ is_textrel_rw = vma->vm_file && !vma->anon_vma && oldflags == (VM_MAYEXEC | VM_MAYREAD | VM_EXEC | VM_READ) && newflags == (VM_WRITE | VM_READ); -+ is_textrel_rx = vma->vm_file && vma->anon_vma && oldflags == (VM_MAYEXEC | VM_MAYWRITE | VM_MAYREAD | VM_WRITE | VM_READ) && newflags == (VM_EXEC | VM_READ); -+#endif -+ -+ /* possible RELRO */ -+ is_relro = vma->vm_file && vma->anon_vma && oldflags == (VM_MAYWRITE | VM_MAYREAD | VM_READ) && newflags == (VM_MAYWRITE | VM_MAYREAD | VM_READ); -+ -+ if (!is_textrel_rw && !is_textrel_rx && !is_relro) -+ return; -+ -+ if (sizeof(elf_h) != kernel_read(vma->vm_file, 0UL, (char *)&elf_h, sizeof(elf_h)) || -+ memcmp(elf_h.e_ident, ELFMAG, SELFMAG) || -+ -+#ifdef CONFIG_PAX_ETEXECRELOCS -+ ((is_textrel_rw || is_textrel_rx) && (elf_h.e_type != ET_DYN && elf_h.e_type != ET_EXEC)) || -+#else -+ ((is_textrel_rw || is_textrel_rx) && elf_h.e_type != ET_DYN) || -+#endif -+ -+ (is_relro && (elf_h.e_type != ET_DYN && elf_h.e_type != ET_EXEC)) || -+ !elf_check_arch(&elf_h) || -+ elf_h.e_phentsize != sizeof(struct elf_phdr) || -+ elf_h.e_phnum > 65536UL / sizeof(struct elf_phdr)) -+ return; -+ -+ for (i = 0UL; i < elf_h.e_phnum; i++) { -+ if (sizeof(elf_p) != kernel_read(vma->vm_file, elf_h.e_phoff + i*sizeof(elf_p), (char *)&elf_p, sizeof(elf_p))) -+ return; -+ switch (elf_p.p_type) { -+ case PT_DYNAMIC: { -+ elf_addr_t dyn_offset = 0UL; -+ elf_dyn dyn; -+ -+ if (!is_textrel_rw && !is_textrel_rx) -+ continue; -+ dyn_offset = elf_p.p_offset; -+ i = 0UL; -+ do { -+ if (sizeof(dyn) != kernel_read(vma->vm_file, dyn_offset + i*sizeof(dyn), (char *)&dyn, sizeof(dyn))) -+ return; -+ if (dyn.d_tag == DT_TEXTREL || (dyn.d_tag == DT_FLAGS && (dyn.d_un.d_val & DF_TEXTREL))) { -+ gr_log_textrel(vma); -+ if (is_textrel_rw) -+ vma->vm_flags |= VM_MAYWRITE; -+ else -+ /* PaX: disallow write access after relocs are done, hopefully noone else needs it... */ -+ vma->vm_flags &= ~VM_MAYWRITE; -+ return; -+ } -+ i++; -+ } while (dyn.d_tag != DT_NULL); -+ return; -+ } -+ -+ case PT_GNU_RELRO: -+ if (!is_relro) -+ continue; -+ if ((elf_p.p_offset >> PAGE_SHIFT) == vma->vm_pgoff && ELF_PAGEALIGN(elf_p.p_memsz) == vma->vm_end - vma->vm_start) { -+ vma->vm_flags &= ~VM_MAYWRITE; -+ } -+ return; -+ } -+ } -+} -+#endif -+ - static int __init init_elf_binfmt(void) - { - return register_binfmt(&elf_format); -diff -urNp linux-2.6.28.8/fs/binfmt_flat.c linux-2.6.28.8/fs/binfmt_flat.c ---- linux-2.6.28.8/fs/binfmt_flat.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/fs/binfmt_flat.c 2009-02-21 09:37:48.000000000 -0500 -@@ -561,7 +561,9 @@ static int load_flat_file(struct linux_b - realdatastart = (unsigned long) -ENOMEM; - printk("Unable to allocate RAM for process data, errno %d\n", - (int)-realdatastart); -+ down_write(¤t->mm->mmap_sem); - do_munmap(current->mm, textpos, text_len); -+ up_write(¤t->mm->mmap_sem); - ret = realdatastart; - goto err; - } -@@ -583,8 +585,10 @@ static int load_flat_file(struct linux_b - } - if (result >= (unsigned long)-4096) { - printk("Unable to read data+bss, errno %d\n", (int)-result); -+ down_write(¤t->mm->mmap_sem); - do_munmap(current->mm, textpos, text_len); - do_munmap(current->mm, realdatastart, data_len + extra); -+ up_write(¤t->mm->mmap_sem); - ret = result; - goto err; - } -@@ -657,8 +661,10 @@ static int load_flat_file(struct linux_b - } - if (result >= (unsigned long)-4096) { - printk("Unable to read code+data+bss, errno %d\n",(int)-result); -+ down_write(¤t->mm->mmap_sem); - do_munmap(current->mm, textpos, text_len + data_len + extra + - MAX_SHARED_LIBS * sizeof(unsigned long)); -+ up_write(¤t->mm->mmap_sem); - ret = result; - goto err; - } -diff -urNp linux-2.6.28.8/fs/binfmt_misc.c linux-2.6.28.8/fs/binfmt_misc.c ---- linux-2.6.28.8/fs/binfmt_misc.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/fs/binfmt_misc.c 2009-02-21 09:37:48.000000000 -0500 -@@ -696,7 +696,7 @@ static int bm_fill_super(struct super_bl - static struct tree_descr bm_files[] = { - [2] = {"status", &bm_status_operations, S_IWUSR|S_IRUGO}, - [3] = {"register", &bm_register_operations, S_IWUSR}, -- /* last one */ {""} -+ /* last one */ {"", NULL, 0} - }; - int err = simple_fill_super(sb, 0x42494e4d, bm_files); - if (!err) -diff -urNp linux-2.6.28.8/fs/bio.c linux-2.6.28.8/fs/bio.c ---- linux-2.6.28.8/fs/bio.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/fs/bio.c 2009-02-21 09:37:48.000000000 -0500 -@@ -554,7 +554,7 @@ static int __bio_copy_iov(struct bio *bi - - while (bv_len && iov_idx < iov_count) { - unsigned int bytes; -- char *iov_addr; -+ char __user *iov_addr; - - bytes = min_t(unsigned int, - iov[iov_idx].iov_len - iov_off, bv_len); -diff -urNp linux-2.6.28.8/fs/buffer.c linux-2.6.28.8/fs/buffer.c ---- linux-2.6.28.8/fs/buffer.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/fs/buffer.c 2009-02-21 09:37:48.000000000 -0500 -@@ -25,6 +25,7 @@ - #include <linux/percpu.h> - #include <linux/slab.h> - #include <linux/capability.h> -+#include <linux/security.h> - #include <linux/blkdev.h> - #include <linux/file.h> - #include <linux/quotaops.h> -@@ -2249,6 +2250,7 @@ int generic_cont_expand_simple(struct in - - err = -EFBIG; - limit = current->signal->rlim[RLIMIT_FSIZE].rlim_cur; -+ gr_learn_resource(current, RLIMIT_FSIZE, (unsigned long) size, 1); - if (limit != RLIM_INFINITY && size > (loff_t)limit) { - send_sig(SIGXFSZ, current, 0); - goto out; -diff -urNp linux-2.6.28.8/fs/cifs/cifs_uniupr.h linux-2.6.28.8/fs/cifs/cifs_uniupr.h ---- linux-2.6.28.8/fs/cifs/cifs_uniupr.h 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/fs/cifs/cifs_uniupr.h 2009-02-21 09:37:48.000000000 -0500 -@@ -132,7 +132,7 @@ const struct UniCaseRange CifsUniUpperRa - {0x0490, 0x04cc, UniCaseRangeU0490}, - {0x1e00, 0x1ffc, UniCaseRangeU1e00}, - {0xff40, 0xff5a, UniCaseRangeUff40}, -- {0} -+ {0, 0, NULL} - }; - #endif - -diff -urNp linux-2.6.28.8/fs/cifs/link.c linux-2.6.28.8/fs/cifs/link.c ---- linux-2.6.28.8/fs/cifs/link.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/fs/cifs/link.c 2009-02-21 09:37:48.000000000 -0500 -@@ -318,7 +318,7 @@ cifs_readlink(struct dentry *direntry, c - - void cifs_put_link(struct dentry *direntry, struct nameidata *nd, void *cookie) - { -- char *p = nd_get_link(nd); -+ const char *p = nd_get_link(nd); - if (!IS_ERR(p)) - kfree(p); - } -diff -urNp linux-2.6.28.8/fs/compat.c linux-2.6.28.8/fs/compat.c ---- linux-2.6.28.8/fs/compat.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/fs/compat.c 2009-02-21 09:37:48.000000000 -0500 -@@ -1331,14 +1331,12 @@ static int compat_copy_strings(int argc, - if (!kmapped_page || kpos != (pos & PAGE_MASK)) { - struct page *page; - --#ifdef CONFIG_STACK_GROWSUP - ret = expand_stack_downwards(bprm->vma, pos); - if (ret < 0) { - /* We've exceed the stack rlimit. */ - ret = -E2BIG; - goto out; - } --#endif - ret = get_user_pages(current, bprm->mm, pos, - 1, 1, 1, &page, NULL); - if (ret <= 0) { -@@ -1384,6 +1382,11 @@ int compat_do_execve(char * filename, - compat_uptr_t __user *envp, - struct pt_regs * regs) - { -+#ifdef CONFIG_GRKERNSEC -+ struct file *old_exec_file; -+ struct acl_subject_label *old_acl; -+ struct rlimit old_rlim[RLIM_NLIMITS]; -+#endif - struct linux_binprm *bprm; - struct file *file; - int retval; -@@ -1404,6 +1407,14 @@ int compat_do_execve(char * filename, - bprm->filename = filename; - bprm->interp = filename; - -+ gr_learn_resource(current, RLIMIT_NPROC, atomic_read(¤t->user->processes), 1); -+ retval = -EAGAIN; -+ if (gr_handle_nproc()) -+ goto out_file; -+ retval = -EACCES; -+ if (!gr_acl_handle_execve(file->f_dentry, file->f_vfsmnt)) -+ goto out_file; -+ - retval = bprm_mm_init(bprm); - if (retval) - goto out_file; -@@ -1437,8 +1448,36 @@ int compat_do_execve(char * filename, - if (retval < 0) - goto out; - -+ if (!gr_tpe_allow(file)) { -+ retval = -EACCES; -+ goto out; -+ } -+ -+ if (gr_check_crash_exec(file)) { -+ retval = -EACCES; -+ goto out; -+ } -+ -+ gr_log_chroot_exec(file->f_dentry, file->f_vfsmnt); -+ -+ gr_handle_exec_args(bprm, (char __user * __user *)argv); -+ -+#ifdef CONFIG_GRKERNSEC -+ old_acl = current->acl; -+ memcpy(old_rlim, current->signal->rlim, sizeof(old_rlim)); -+ old_exec_file = current->exec_file; -+ get_file(file); -+ current->exec_file = file; -+#endif -+ -+ gr_set_proc_label(file->f_dentry, file->f_vfsmnt); -+ - retval = search_binary_handler(bprm, regs); - if (retval >= 0) { -+#ifdef CONFIG_GRKERNSEC -+ if (old_exec_file) -+ fput(old_exec_file); -+#endif - /* execve success */ - security_bprm_free(bprm); - acct_update_integrals(current); -@@ -1446,6 +1485,13 @@ int compat_do_execve(char * filename, - return retval; - } - -+#ifdef CONFIG_GRKERNSEC -+ current->acl = old_acl; -+ memcpy(current->signal->rlim, old_rlim, sizeof(old_rlim)); -+ fput(current->exec_file); -+ current->exec_file = old_exec_file; -+#endif -+ - out: - if (bprm->security) - security_bprm_free(bprm); -diff -urNp linux-2.6.28.8/fs/compat_ioctl.c linux-2.6.28.8/fs/compat_ioctl.c ---- linux-2.6.28.8/fs/compat_ioctl.c 2009-03-07 10:24:49.000000000 -0500 -+++ linux-2.6.28.8/fs/compat_ioctl.c 2009-03-07 10:29:51.000000000 -0500 -@@ -1832,15 +1832,15 @@ struct ioctl_trans { - }; - - #define HANDLE_IOCTL(cmd,handler) \ -- { (cmd), (ioctl_trans_handler_t)(handler) }, -+ { (cmd), (ioctl_trans_handler_t)(handler), NULL }, - - /* pointer to compatible structure or no argument */ - #define COMPATIBLE_IOCTL(cmd) \ -- { (cmd), do_ioctl32_pointer }, -+ { (cmd), do_ioctl32_pointer, NULL }, - - /* argument is an unsigned long integer, not a pointer */ - #define ULONG_IOCTL(cmd) \ -- { (cmd), (ioctl_trans_handler_t)sys_ioctl }, -+ { (cmd), (ioctl_trans_handler_t)sys_ioctl, NULL }, - - /* ioctl should not be warned about even if it's not implemented. - Valid reasons to use this: -diff -urNp linux-2.6.28.8/fs/debugfs/inode.c linux-2.6.28.8/fs/debugfs/inode.c ---- linux-2.6.28.8/fs/debugfs/inode.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/fs/debugfs/inode.c 2009-02-21 09:37:48.000000000 -0500 -@@ -120,7 +120,7 @@ static inline int debugfs_positive(struc - - static int debug_fill_super(struct super_block *sb, void *data, int silent) - { -- static struct tree_descr debug_files[] = {{""}}; -+ static struct tree_descr debug_files[] = {{"", NULL, 0}}; - - return simple_fill_super(sb, DEBUGFS_MAGIC, debug_files); - } -diff -urNp linux-2.6.28.8/fs/exec.c linux-2.6.28.8/fs/exec.c ---- linux-2.6.28.8/fs/exec.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/fs/exec.c 2009-02-21 09:37:48.000000000 -0500 -@@ -51,6 +51,12 @@ - #include <linux/audit.h> - #include <linux/tracehook.h> - #include <linux/kmod.h> -+#include <linux/random.h> -+ -+#ifdef CONFIG_PAX_REFCOUNT -+#include <linux/kallsyms.h> -+#include <linux/kdebug.h> -+#endif - - #include <asm/uaccess.h> - #include <asm/mmu_context.h> -@@ -61,6 +67,11 @@ - #include <linux/a.out.h> - #endif - -+#ifdef CONFIG_PAX_HOOK_ACL_FLAGS -+void (*pax_set_initial_flags_func)(struct linux_binprm *bprm); -+EXPORT_SYMBOL(pax_set_initial_flags_func); -+#endif -+ - int core_uses_pid; - char core_pattern[CORENAME_MAX_SIZE] = "core"; - int suid_dumpable = 0; -@@ -169,18 +180,10 @@ static struct page *get_arg_page(struct - int write) - { - struct page *page; -- int ret; - --#ifdef CONFIG_STACK_GROWSUP -- if (write) { -- ret = expand_stack_downwards(bprm->vma, pos); -- if (ret < 0) -- return NULL; -- } --#endif -- ret = get_user_pages(current, bprm->mm, pos, -- 1, write, 1, &page, NULL); -- if (ret <= 0) -+ if (0 > expand_stack_downwards(bprm->vma, pos)) -+ return NULL; -+ if (0 >= get_user_pages(current, bprm->mm, pos, 1, write, 1, &page, NULL)) - return NULL; - - if (write) { -@@ -253,6 +256,11 @@ static int __bprm_mm_init(struct linux_b - vma->vm_start = vma->vm_end - PAGE_SIZE; - - vma->vm_flags = VM_STACK_FLAGS; -+ -+#ifdef CONFIG_PAX_SEGMEXEC -+ vma->vm_flags &= ~(VM_EXEC | VM_MAYEXEC); -+#endif -+ - vma->vm_page_prot = vm_get_page_prot(vma->vm_flags); - err = insert_vm_struct(mm, vma); - if (err) { -@@ -265,6 +273,11 @@ static int __bprm_mm_init(struct linux_b - - bprm->p = vma->vm_end - sizeof(void *); - -+#ifdef CONFIG_PAX_RANDUSTACK -+ if (randomize_va_space) -+ bprm->p ^= (pax_get_random_long() & ~15) & ~PAGE_MASK; -+#endif -+ - return 0; - - err: -@@ -528,6 +541,10 @@ static int shift_arg_pages(struct vm_are - if (vma != find_vma(mm, new_start)) - return -EFAULT; - -+#ifdef CONFIG_PAX_SEGMEXEC -+ BUG_ON(pax_find_mirror_vma(vma)); -+#endif -+ - /* - * cover the whole range: [new_start, old_end) - */ -@@ -616,6 +633,14 @@ int setup_arg_pages(struct linux_binprm - bprm->exec -= stack_shift; - - down_write(&mm->mmap_sem); -+ -+ /* Move stack pages down in memory. */ -+ if (stack_shift) { -+ ret = shift_arg_pages(vma, stack_shift); -+ if (ret) -+ goto out_unlock; -+ } -+ - vm_flags = VM_STACK_FLAGS; - - /* -@@ -629,21 +654,24 @@ int setup_arg_pages(struct linux_binprm - vm_flags &= ~VM_EXEC; - vm_flags |= mm->def_flags; - -+#if defined(CONFIG_PAX_PAGEEXEC) || defined(CONFIG_PAX_SEGMEXEC) -+ if (mm->pax_flags & (MF_PAX_PAGEEXEC | MF_PAX_SEGMEXEC)) { -+ vm_flags &= ~VM_EXEC; -+ -+#ifdef CONFIG_PAX_MPROTECT -+ if (mm->pax_flags & MF_PAX_MPROTECT) -+ vm_flags &= ~VM_MAYEXEC; -+#endif -+ -+ } -+#endif -+ - ret = mprotect_fixup(vma, &prev, vma->vm_start, vma->vm_end, - vm_flags); - if (ret) - goto out_unlock; - BUG_ON(prev != vma); - -- /* Move stack pages down in memory. */ -- if (stack_shift) { -- ret = shift_arg_pages(vma, stack_shift); -- if (ret) { -- up_write(&mm->mmap_sem); -- return ret; -- } -- } -- - #ifdef CONFIG_STACK_GROWSUP - stack_base = vma->vm_end + EXTRA_STACK_VM_PAGES * PAGE_SIZE; - #else -@@ -655,7 +683,7 @@ int setup_arg_pages(struct linux_binprm - - out_unlock: - up_write(&mm->mmap_sem); -- return 0; -+ return ret; - } - EXPORT_SYMBOL(setup_arg_pages); - -@@ -1281,6 +1309,11 @@ int do_execve(char * filename, - char __user *__user *envp, - struct pt_regs * regs) - { -+#ifdef CONFIG_GRKERNSEC -+ struct file *old_exec_file; -+ struct acl_subject_label *old_acl; -+ struct rlimit old_rlim[RLIM_NLIMITS]; -+#endif - struct linux_binprm *bprm; - struct file *file; - struct files_struct *displaced; -@@ -1300,6 +1333,20 @@ int do_execve(char * filename, - if (IS_ERR(file)) - goto out_kfree; - -+ gr_learn_resource(current, RLIMIT_NPROC, atomic_read(¤t->user->processes), 1); -+ -+ if (gr_handle_nproc()) { -+ allow_write_access(file); -+ fput(file); -+ return -EAGAIN; -+ } -+ -+ if (!gr_acl_handle_execve(file->f_dentry, file->f_vfsmnt)) { -+ allow_write_access(file); -+ fput(file); -+ return -EACCES; -+ } -+ - sched_exec(); - - bprm->file = file; -@@ -1339,9 +1386,39 @@ int do_execve(char * filename, - if (retval < 0) - goto out; - -+ if (!gr_tpe_allow(file)) { -+ retval = -EACCES; -+ goto out; -+ } -+ -+ if (gr_check_crash_exec(file)) { -+ retval = -EACCES; -+ goto out; -+ } -+ -+ gr_log_chroot_exec(file->f_dentry, file->f_vfsmnt); -+ -+ gr_handle_exec_args(bprm, argv); -+ -+#ifdef CONFIG_GRKERNSEC -+ old_acl = current->acl; -+ memcpy(old_rlim, current->signal->rlim, sizeof(old_rlim)); -+ old_exec_file = current->exec_file; -+ get_file(file); -+ current->exec_file = file; -+#endif -+ -+ retval = gr_set_proc_label(file->f_dentry, file->f_vfsmnt); -+ if (retval < 0) -+ goto out_fail; -+ - current->flags &= ~PF_KTHREAD; - retval = search_binary_handler(bprm,regs); - if (retval >= 0) { -+#ifdef CONFIG_GRKERNSEC -+ if (old_exec_file) -+ fput(old_exec_file); -+#endif - /* execve success */ - security_bprm_free(bprm); - acct_update_integrals(current); -@@ -1351,6 +1428,14 @@ int do_execve(char * filename, - return retval; - } - -+out_fail: -+#ifdef CONFIG_GRKERNSEC -+ current->acl = old_acl; -+ memcpy(current->signal->rlim, old_rlim, sizeof(old_rlim)); -+ fput(current->exec_file); -+ current->exec_file = old_exec_file; -+#endif -+ - out: - if (bprm->security) - security_bprm_free(bprm); -@@ -1513,6 +1598,129 @@ out: - return ispipe; - } - -+int pax_check_flags(unsigned long *flags) -+{ -+ int retval = 0; -+ -+#if !defined(CONFIG_X86_32) || !defined(CONFIG_PAX_SEGMEXEC) -+ if (*flags & MF_PAX_SEGMEXEC) -+ { -+ *flags &= ~MF_PAX_SEGMEXEC; -+ retval = -EINVAL; -+ } -+#endif -+ -+ if ((*flags & MF_PAX_PAGEEXEC) -+ -+#ifdef CONFIG_PAX_PAGEEXEC -+ && (*flags & MF_PAX_SEGMEXEC) -+#endif -+ -+ ) -+ { -+ *flags &= ~MF_PAX_PAGEEXEC; -+ retval = -EINVAL; -+ } -+ -+ if ((*flags & MF_PAX_MPROTECT) -+ -+#ifdef CONFIG_PAX_MPROTECT -+ && !(*flags & (MF_PAX_PAGEEXEC | MF_PAX_SEGMEXEC)) -+#endif -+ -+ ) -+ { -+ *flags &= ~MF_PAX_MPROTECT; -+ retval = -EINVAL; -+ } -+ -+ if ((*flags & MF_PAX_EMUTRAMP) -+ -+#ifdef CONFIG_PAX_EMUTRAMP -+ && !(*flags & (MF_PAX_PAGEEXEC | MF_PAX_SEGMEXEC)) -+#endif -+ -+ ) -+ { -+ *flags &= ~MF_PAX_EMUTRAMP; -+ retval = -EINVAL; -+ } -+ -+ return retval; -+} -+ -+EXPORT_SYMBOL(pax_check_flags); -+ -+#if defined(CONFIG_PAX_PAGEEXEC) || defined(CONFIG_PAX_SEGMEXEC) -+void pax_report_fault(struct pt_regs *regs, void *pc, void *sp) -+{ -+ struct task_struct *tsk = current; -+ struct mm_struct *mm = current->mm; -+ char *buffer_exec = (char *)__get_free_page(GFP_KERNEL); -+ char *buffer_fault = (char *)__get_free_page(GFP_KERNEL); -+ char *path_exec = NULL; -+ char *path_fault = NULL; -+ unsigned long start = 0UL, end = 0UL, offset = 0UL; -+ -+ if (buffer_exec && buffer_fault) { -+ struct vm_area_struct *vma, *vma_exec = NULL, *vma_fault = NULL; -+ -+ down_read(&mm->mmap_sem); -+ vma = mm->mmap; -+ while (vma && (!vma_exec || !vma_fault)) { -+ if ((vma->vm_flags & VM_EXECUTABLE) && vma->vm_file) -+ vma_exec = vma; -+ if (vma->vm_start <= (unsigned long)pc && (unsigned long)pc < vma->vm_end) -+ vma_fault = vma; -+ vma = vma->vm_next; -+ } -+ if (vma_exec) { -+ path_exec = d_path(&vma_exec->vm_file->f_path, buffer_exec, PAGE_SIZE); -+ if (IS_ERR(path_exec)) -+ path_exec = "<path too long>"; -+ } -+ if (vma_fault) { -+ start = vma_fault->vm_start; -+ end = vma_fault->vm_end; -+ offset = vma_fault->vm_pgoff << PAGE_SHIFT; -+ if (vma_fault->vm_file) { -+ path_fault = d_path(&vma_fault->vm_file->f_path, buffer_fault, PAGE_SIZE); -+ if (IS_ERR(path_fault)) -+ path_fault = "<path too long>"; -+ } else -+ path_fault = "<anonymous mapping>"; -+ } -+ up_read(&mm->mmap_sem); -+ } -+ if (tsk->signal->curr_ip) -+ printk(KERN_ERR "PAX: From %u.%u.%u.%u: execution attempt in: %s, %08lx-%08lx %08lx\n", NIPQUAD(tsk->signal->curr_ip), path_fault, start, end, offset); -+ else -+ printk(KERN_ERR "PAX: execution attempt in: %s, %08lx-%08lx %08lx\n", path_fault, start, end, offset); -+ printk(KERN_ERR "PAX: terminating task: %s(%s):%d, uid/euid: %u/%u, " -+ "PC: %p, SP: %p\n", path_exec, tsk->comm, task_pid_nr(tsk), -+ tsk->uid, tsk->euid, pc, sp); -+ free_page((unsigned long)buffer_exec); -+ free_page((unsigned long)buffer_fault); -+ pax_report_insns(pc, sp); -+ do_coredump(SIGKILL, SIGKILL, regs); -+} -+#endif -+ -+#ifdef CONFIG_PAX_REFCOUNT -+void pax_report_refcount_overflow(struct pt_regs *regs) -+{ -+ if (current->signal->curr_ip) -+ printk(KERN_ERR "PAX: From %u.%u.%u.%u: refcount overflow detected in: %s:%d, uid/euid: %u/%u\n", -+ NIPQUAD(current->signal->curr_ip), current->comm, task_pid_nr(current), current->uid, current->euid); -+ else -+ printk(KERN_ERR "PAX: refcount overflow detected in: %s:%d, uid/euid: %u/%u\n", -+ current->comm, task_pid_nr(current), current->uid, current->euid); -+ print_symbol(KERN_ERR "PAX: refcount overflow occured at: %s\n", instruction_pointer(regs)); -+ show_registers(regs); -+ force_sig_specific(SIGKILL, current); -+} -+#endif -+ - static int zap_process(struct task_struct *start) - { - struct task_struct *t; -@@ -1759,6 +1967,10 @@ int do_coredump(long signr, int exit_cod - */ - clear_thread_flag(TIF_SIGPENDING); - -+ if (signr == SIGKILL || signr == SIGILL) -+ gr_handle_brute_attach(current); -+ gr_learn_resource(current, RLIMIT_CORE, binfmt->min_coredump, 1); -+ - /* - * lock_kernel() because format_corename() is controlled by sysctl, which - * uses lock_kernel() -@@ -1779,6 +1991,8 @@ int do_coredump(long signr, int exit_cod - - if (ispipe) { - helper_argv = argv_split(GFP_KERNEL, corename+1, &helper_argc); -+ if (!helper_argv) -+ goto fail_unlock; - /* Terminate the string before the first option */ - delimit = strchr(corename, ' '); - if (delimit) -diff -urNp linux-2.6.28.8/fs/ext2/balloc.c linux-2.6.28.8/fs/ext2/balloc.c ---- linux-2.6.28.8/fs/ext2/balloc.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/fs/ext2/balloc.c 2009-02-21 09:37:49.000000000 -0500 -@@ -1192,7 +1192,7 @@ static int ext2_has_free_blocks(struct e - - free_blocks = percpu_counter_read_positive(&sbi->s_freeblocks_counter); - root_blocks = le32_to_cpu(sbi->s_es->s_r_blocks_count); -- if (free_blocks < root_blocks + 1 && !capable(CAP_SYS_RESOURCE) && -+ if (free_blocks < root_blocks + 1 && !capable_nolog(CAP_SYS_RESOURCE) && - sbi->s_resuid != current->fsuid && - (sbi->s_resgid == 0 || !in_group_p (sbi->s_resgid))) { - return 0; -diff -urNp linux-2.6.28.8/fs/ext3/balloc.c linux-2.6.28.8/fs/ext3/balloc.c ---- linux-2.6.28.8/fs/ext3/balloc.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/fs/ext3/balloc.c 2009-02-21 09:37:49.000000000 -0500 -@@ -1421,7 +1421,7 @@ static int ext3_has_free_blocks(struct e - - free_blocks = percpu_counter_read_positive(&sbi->s_freeblocks_counter); - root_blocks = le32_to_cpu(sbi->s_es->s_r_blocks_count); -- if (free_blocks < root_blocks + 1 && !capable(CAP_SYS_RESOURCE) && -+ if (free_blocks < root_blocks + 1 && !capable_nolog(CAP_SYS_RESOURCE) && - sbi->s_resuid != current->fsuid && - (sbi->s_resgid == 0 || !in_group_p (sbi->s_resgid))) { - return 0; -diff -urNp linux-2.6.28.8/fs/ext3/namei.c linux-2.6.28.8/fs/ext3/namei.c ---- linux-2.6.28.8/fs/ext3/namei.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/fs/ext3/namei.c 2009-02-21 09:37:49.000000000 -0500 -@@ -1156,9 +1156,9 @@ static struct ext3_dir_entry_2 *do_split - u32 hash2; - struct dx_map_entry *map; - char *data1 = (*bh)->b_data, *data2; -- unsigned split, move, size, i; -+ unsigned split, move, size; - struct ext3_dir_entry_2 *de = NULL, *de2; -- int err = 0; -+ int i, err = 0; - - bh2 = ext3_append (handle, dir, &newblock, &err); - if (!(bh2)) { -diff -urNp linux-2.6.28.8/fs/ext3/xattr.c linux-2.6.28.8/fs/ext3/xattr.c ---- linux-2.6.28.8/fs/ext3/xattr.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/fs/ext3/xattr.c 2009-02-21 09:37:49.000000000 -0500 -@@ -89,8 +89,8 @@ - printk("\n"); \ - } while (0) - #else --# define ea_idebug(f...) --# define ea_bdebug(f...) -+# define ea_idebug(f...) do {} while (0) -+# define ea_bdebug(f...) do {} while (0) - #endif - - static void ext3_xattr_cache_insert(struct buffer_head *); -diff -urNp linux-2.6.28.8/fs/ext4/balloc.c linux-2.6.28.8/fs/ext4/balloc.c ---- linux-2.6.28.8/fs/ext4/balloc.c 2009-02-20 22:26:39.000000000 -0500 -+++ linux-2.6.28.8/fs/ext4/balloc.c 2009-02-21 09:37:49.000000000 -0500 -@@ -576,7 +576,7 @@ int ext4_has_free_blocks(struct ext4_sb_ - /* Hm, nope. Are (enough) root reserved blocks available? */ - if (sbi->s_resuid == current->fsuid || - ((sbi->s_resgid != 0) && in_group_p(sbi->s_resgid)) || -- capable(CAP_SYS_RESOURCE)) { -+ capable_nolog(CAP_SYS_RESOURCE)) { - if (free_blocks >= (nblocks + dirty_blocks)) - return 1; - } -diff -urNp linux-2.6.28.8/fs/ext4/namei.c linux-2.6.28.8/fs/ext4/namei.c ---- linux-2.6.28.8/fs/ext4/namei.c 2009-02-20 22:26:39.000000000 -0500 -+++ linux-2.6.28.8/fs/ext4/namei.c 2009-02-21 09:37:49.000000000 -0500 -@@ -1171,9 +1171,9 @@ static struct ext4_dir_entry_2 *do_split - u32 hash2; - struct dx_map_entry *map; - char *data1 = (*bh)->b_data, *data2; -- unsigned split, move, size, i; -+ unsigned split, move, size; - struct ext4_dir_entry_2 *de = NULL, *de2; -- int err = 0; -+ int i, err = 0; - - bh2 = ext4_append (handle, dir, &newblock, &err); - if (!(bh2)) { -diff -urNp linux-2.6.28.8/fs/fcntl.c linux-2.6.28.8/fs/fcntl.c ---- linux-2.6.28.8/fs/fcntl.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/fs/fcntl.c 2009-02-21 09:37:49.000000000 -0500 -@@ -266,6 +266,7 @@ static long do_fcntl(int fd, unsigned in - switch (cmd) { - case F_DUPFD: - case F_DUPFD_CLOEXEC: -+ gr_learn_resource(current, RLIMIT_NOFILE, arg, 0); - if (arg >= current->signal->rlim[RLIMIT_NOFILE].rlim_cur) - break; - err = alloc_fd(arg, cmd == F_DUPFD_CLOEXEC ? O_CLOEXEC : 0); -@@ -411,7 +412,8 @@ static inline int sigio_perm(struct task - return (((fown->euid == 0) || - (fown->euid == p->suid) || (fown->euid == p->uid) || - (fown->uid == p->suid) || (fown->uid == p->uid)) && -- !security_file_send_sigiotask(p, fown, sig)); -+ !security_file_send_sigiotask(p, fown, sig) && -+ !gr_check_protected_task(p) && !gr_pid_is_chrooted(p)); - } - - static void send_sigio_to_task(struct task_struct *p, -diff -urNp linux-2.6.28.8/fs/file.c linux-2.6.28.8/fs/file.c ---- linux-2.6.28.8/fs/file.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/fs/file.c 2009-02-21 09:37:49.000000000 -0500 -@@ -13,6 +13,7 @@ - #include <linux/slab.h> - #include <linux/vmalloc.h> - #include <linux/file.h> -+#include <linux/security.h> - #include <linux/fdtable.h> - #include <linux/bitops.h> - #include <linux/interrupt.h> -@@ -256,6 +257,8 @@ int expand_files(struct files_struct *fi - * N.B. For clone tasks sharing a files structure, this test - * will limit the total number of files that can be opened. - */ -+ -+ gr_learn_resource(current, RLIMIT_NOFILE, nr, 0); - if (nr >= current->signal->rlim[RLIMIT_NOFILE].rlim_cur) - return -EMFILE; - -diff -urNp linux-2.6.28.8/fs/fuse/control.c linux-2.6.28.8/fs/fuse/control.c ---- linux-2.6.28.8/fs/fuse/control.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/fs/fuse/control.c 2009-02-21 09:37:49.000000000 -0500 -@@ -159,7 +159,7 @@ void fuse_ctl_remove_conn(struct fuse_co - - static int fuse_ctl_fill_super(struct super_block *sb, void *data, int silent) - { -- struct tree_descr empty_descr = {""}; -+ struct tree_descr empty_descr = {"", NULL, 0}; - struct fuse_conn *fc; - int err; - -diff -urNp linux-2.6.28.8/fs/fuse/dir.c linux-2.6.28.8/fs/fuse/dir.c ---- linux-2.6.28.8/fs/fuse/dir.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/fs/fuse/dir.c 2009-02-21 09:37:49.000000000 -0500 -@@ -1072,7 +1072,7 @@ static char *read_link(struct dentry *de - return link; - } - --static void free_link(char *link) -+static void free_link(const char *link) - { - if (!IS_ERR(link)) - free_page((unsigned long) link); -diff -urNp linux-2.6.28.8/fs/hfs/inode.c linux-2.6.28.8/fs/hfs/inode.c ---- linux-2.6.28.8/fs/hfs/inode.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/fs/hfs/inode.c 2009-02-21 09:37:49.000000000 -0500 -@@ -419,7 +419,7 @@ int hfs_write_inode(struct inode *inode, - - if (S_ISDIR(main_inode->i_mode)) { - if (fd.entrylength < sizeof(struct hfs_cat_dir)) -- /* panic? */; -+ {/* panic? */} - hfs_bnode_read(fd.bnode, &rec, fd.entryoffset, - sizeof(struct hfs_cat_dir)); - if (rec.type != HFS_CDR_DIR || -@@ -440,7 +440,7 @@ int hfs_write_inode(struct inode *inode, - sizeof(struct hfs_cat_file)); - } else { - if (fd.entrylength < sizeof(struct hfs_cat_file)) -- /* panic? */; -+ {/* panic? */} - hfs_bnode_read(fd.bnode, &rec, fd.entryoffset, - sizeof(struct hfs_cat_file)); - if (rec.type != HFS_CDR_FIL || -diff -urNp linux-2.6.28.8/fs/hfsplus/inode.c linux-2.6.28.8/fs/hfsplus/inode.c ---- linux-2.6.28.8/fs/hfsplus/inode.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/fs/hfsplus/inode.c 2009-02-21 09:37:49.000000000 -0500 -@@ -406,7 +406,7 @@ int hfsplus_cat_read_inode(struct inode - struct hfsplus_cat_folder *folder = &entry.folder; - - if (fd->entrylength < sizeof(struct hfsplus_cat_folder)) -- /* panic? */; -+ {/* panic? */} - hfs_bnode_read(fd->bnode, &entry, fd->entryoffset, - sizeof(struct hfsplus_cat_folder)); - hfsplus_get_perms(inode, &folder->permissions, 1); -@@ -423,7 +423,7 @@ int hfsplus_cat_read_inode(struct inode - struct hfsplus_cat_file *file = &entry.file; - - if (fd->entrylength < sizeof(struct hfsplus_cat_file)) -- /* panic? */; -+ {/* panic? */} - hfs_bnode_read(fd->bnode, &entry, fd->entryoffset, - sizeof(struct hfsplus_cat_file)); - -@@ -479,7 +479,7 @@ int hfsplus_cat_write_inode(struct inode - struct hfsplus_cat_folder *folder = &entry.folder; - - if (fd.entrylength < sizeof(struct hfsplus_cat_folder)) -- /* panic? */; -+ {/* panic? */} - hfs_bnode_read(fd.bnode, &entry, fd.entryoffset, - sizeof(struct hfsplus_cat_folder)); - /* simple node checks? */ -@@ -501,7 +501,7 @@ int hfsplus_cat_write_inode(struct inode - struct hfsplus_cat_file *file = &entry.file; - - if (fd.entrylength < sizeof(struct hfsplus_cat_file)) -- /* panic? */; -+ {/* panic? */} - hfs_bnode_read(fd.bnode, &entry, fd.entryoffset, - sizeof(struct hfsplus_cat_file)); - hfsplus_inode_write_fork(inode, &file->data_fork); -diff -urNp linux-2.6.28.8/fs/jffs2/debug.h linux-2.6.28.8/fs/jffs2/debug.h ---- linux-2.6.28.8/fs/jffs2/debug.h 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/fs/jffs2/debug.h 2009-02-21 09:37:49.000000000 -0500 -@@ -52,13 +52,13 @@ - #if CONFIG_JFFS2_FS_DEBUG > 0 - #define D1(x) x - #else --#define D1(x) -+#define D1(x) do {} while (0); - #endif - - #if CONFIG_JFFS2_FS_DEBUG > 1 - #define D2(x) x - #else --#define D2(x) -+#define D2(x) do {} while (0); - #endif - - /* The prefixes of JFFS2 messages */ -@@ -114,73 +114,73 @@ - #ifdef JFFS2_DBG_READINODE_MESSAGES - #define dbg_readinode(fmt, ...) JFFS2_DEBUG(fmt, ##__VA_ARGS__) - #else --#define dbg_readinode(fmt, ...) -+#define dbg_readinode(fmt, ...) do {} while (0) - #endif - #ifdef JFFS2_DBG_READINODE2_MESSAGES - #define dbg_readinode2(fmt, ...) JFFS2_DEBUG(fmt, ##__VA_ARGS__) - #else --#define dbg_readinode2(fmt, ...) -+#define dbg_readinode2(fmt, ...) do {} while (0) - #endif - - /* Fragtree build debugging messages */ - #ifdef JFFS2_DBG_FRAGTREE_MESSAGES - #define dbg_fragtree(fmt, ...) JFFS2_DEBUG(fmt, ##__VA_ARGS__) - #else --#define dbg_fragtree(fmt, ...) -+#define dbg_fragtree(fmt, ...) do {} while (0) - #endif - #ifdef JFFS2_DBG_FRAGTREE2_MESSAGES - #define dbg_fragtree2(fmt, ...) JFFS2_DEBUG(fmt, ##__VA_ARGS__) - #else --#define dbg_fragtree2(fmt, ...) -+#define dbg_fragtree2(fmt, ...) do {} while (0) - #endif - - /* Directory entry list manilulation debugging messages */ - #ifdef JFFS2_DBG_DENTLIST_MESSAGES - #define dbg_dentlist(fmt, ...) JFFS2_DEBUG(fmt, ##__VA_ARGS__) - #else --#define dbg_dentlist(fmt, ...) -+#define dbg_dentlist(fmt, ...) do {} while (0) - #endif - - /* Print the messages about manipulating node_refs */ - #ifdef JFFS2_DBG_NODEREF_MESSAGES - #define dbg_noderef(fmt, ...) JFFS2_DEBUG(fmt, ##__VA_ARGS__) - #else --#define dbg_noderef(fmt, ...) -+#define dbg_noderef(fmt, ...) do {} while (0) - #endif - - /* Manipulations with the list of inodes (JFFS2 inocache) */ - #ifdef JFFS2_DBG_INOCACHE_MESSAGES - #define dbg_inocache(fmt, ...) JFFS2_DEBUG(fmt, ##__VA_ARGS__) - #else --#define dbg_inocache(fmt, ...) -+#define dbg_inocache(fmt, ...) do {} while (0) - #endif - - /* Summary debugging messages */ - #ifdef JFFS2_DBG_SUMMARY_MESSAGES - #define dbg_summary(fmt, ...) JFFS2_DEBUG(fmt, ##__VA_ARGS__) - #else --#define dbg_summary(fmt, ...) -+#define dbg_summary(fmt, ...) do {} while (0) - #endif - - /* File system build messages */ - #ifdef JFFS2_DBG_FSBUILD_MESSAGES - #define dbg_fsbuild(fmt, ...) JFFS2_DEBUG(fmt, ##__VA_ARGS__) - #else --#define dbg_fsbuild(fmt, ...) -+#define dbg_fsbuild(fmt, ...) do {} while (0) - #endif - - /* Watch the object allocations */ - #ifdef JFFS2_DBG_MEMALLOC_MESSAGES - #define dbg_memalloc(fmt, ...) JFFS2_DEBUG(fmt, ##__VA_ARGS__) - #else --#define dbg_memalloc(fmt, ...) -+#define dbg_memalloc(fmt, ...) do {} while (0) - #endif - - /* Watch the XATTR subsystem */ - #ifdef JFFS2_DBG_XATTR_MESSAGES - #define dbg_xattr(fmt, ...) JFFS2_DEBUG(fmt, ##__VA_ARGS__) - #else --#define dbg_xattr(fmt, ...) -+#define dbg_xattr(fmt, ...) do {} while (0) - #endif - - /* "Sanity" checks */ -diff -urNp linux-2.6.28.8/fs/jffs2/erase.c linux-2.6.28.8/fs/jffs2/erase.c ---- linux-2.6.28.8/fs/jffs2/erase.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/fs/jffs2/erase.c 2009-02-21 09:37:49.000000000 -0500 -@@ -431,7 +431,8 @@ static void jffs2_mark_erased_block(stru - struct jffs2_unknown_node marker = { - .magic = cpu_to_je16(JFFS2_MAGIC_BITMASK), - .nodetype = cpu_to_je16(JFFS2_NODETYPE_CLEANMARKER), -- .totlen = cpu_to_je32(c->cleanmarker_size) -+ .totlen = cpu_to_je32(c->cleanmarker_size), -+ .hdr_crc = cpu_to_je32(0) - }; - - jffs2_prealloc_raw_node_refs(c, jeb, 1); -diff -urNp linux-2.6.28.8/fs/jffs2/summary.h linux-2.6.28.8/fs/jffs2/summary.h ---- linux-2.6.28.8/fs/jffs2/summary.h 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/fs/jffs2/summary.h 2009-02-21 09:37:49.000000000 -0500 -@@ -194,18 +194,18 @@ int jffs2_sum_scan_sumnode(struct jffs2_ - - #define jffs2_sum_active() (0) - #define jffs2_sum_init(a) (0) --#define jffs2_sum_exit(a) --#define jffs2_sum_disable_collecting(a) -+#define jffs2_sum_exit(a) do {} while (0) -+#define jffs2_sum_disable_collecting(a) do {} while (0) - #define jffs2_sum_is_disabled(a) (0) --#define jffs2_sum_reset_collected(a) -+#define jffs2_sum_reset_collected(a) do {} while (0) - #define jffs2_sum_add_kvec(a,b,c,d) (0) --#define jffs2_sum_move_collected(a,b) -+#define jffs2_sum_move_collected(a,b) do {} while (0) - #define jffs2_sum_write_sumnode(a) (0) --#define jffs2_sum_add_padding_mem(a,b) --#define jffs2_sum_add_inode_mem(a,b,c) --#define jffs2_sum_add_dirent_mem(a,b,c) --#define jffs2_sum_add_xattr_mem(a,b,c) --#define jffs2_sum_add_xref_mem(a,b,c) -+#define jffs2_sum_add_padding_mem(a,b) do {} while (0) -+#define jffs2_sum_add_inode_mem(a,b,c) do {} while (0) -+#define jffs2_sum_add_dirent_mem(a,b,c) do {} while (0) -+#define jffs2_sum_add_xattr_mem(a,b,c) do {} while (0) -+#define jffs2_sum_add_xref_mem(a,b,c) do {} while (0) - #define jffs2_sum_scan_sumnode(a,b,c,d,e) (0) - - #endif /* CONFIG_JFFS2_SUMMARY */ -diff -urNp linux-2.6.28.8/fs/jffs2/wbuf.c linux-2.6.28.8/fs/jffs2/wbuf.c ---- linux-2.6.28.8/fs/jffs2/wbuf.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/fs/jffs2/wbuf.c 2009-02-21 09:37:49.000000000 -0500 -@@ -1012,7 +1012,8 @@ static const struct jffs2_unknown_node o - { - .magic = constant_cpu_to_je16(JFFS2_MAGIC_BITMASK), - .nodetype = constant_cpu_to_je16(JFFS2_NODETYPE_CLEANMARKER), -- .totlen = constant_cpu_to_je32(8) -+ .totlen = constant_cpu_to_je32(8), -+ .hdr_crc = constant_cpu_to_je32(0) - }; - - /* -diff -urNp linux-2.6.28.8/fs/locks.c linux-2.6.28.8/fs/locks.c ---- linux-2.6.28.8/fs/locks.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/fs/locks.c 2009-02-21 09:37:49.000000000 -0500 -@@ -2006,16 +2006,16 @@ void locks_remove_flock(struct file *fil - return; - - if (filp->f_op && filp->f_op->flock) { -- struct file_lock fl = { -+ struct file_lock flock = { - .fl_pid = current->tgid, - .fl_file = filp, - .fl_flags = FL_FLOCK, - .fl_type = F_UNLCK, - .fl_end = OFFSET_MAX, - }; -- filp->f_op->flock(filp, F_SETLKW, &fl); -- if (fl.fl_ops && fl.fl_ops->fl_release_private) -- fl.fl_ops->fl_release_private(&fl); -+ filp->f_op->flock(filp, F_SETLKW, &flock); -+ if (flock.fl_ops && flock.fl_ops->fl_release_private) -+ flock.fl_ops->fl_release_private(&flock); - } - - lock_kernel(); -diff -urNp linux-2.6.28.8/fs/namei.c linux-2.6.28.8/fs/namei.c ---- linux-2.6.28.8/fs/namei.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/fs/namei.c 2009-03-07 04:29:14.000000000 -0500 -@@ -633,7 +633,7 @@ static __always_inline int __do_follow_l - cookie = dentry->d_inode->i_op->follow_link(dentry, nd); - error = PTR_ERR(cookie); - if (!IS_ERR(cookie)) { -- char *s = nd_get_link(nd); -+ const char *s = nd_get_link(nd); - error = 0; - if (s) - error = __vfs_follow_link(nd, s); -@@ -664,6 +664,13 @@ static inline int do_follow_link(struct - err = security_inode_follow_link(path->dentry, nd); - if (err) - goto loop; -+ -+ if (gr_handle_follow_link(path->dentry->d_parent->d_inode, -+ path->dentry->d_inode, path->dentry, nd->path.mnt)) { -+ err = -EACCES; -+ goto loop; -+ } -+ - current->link_count++; - current->total_link_count++; - nd->depth++; -@@ -1012,11 +1019,18 @@ return_reval: - break; - } - return_base: -+ if (!gr_acl_handle_hidden_file(nd->path.dentry, nd->path.mnt)) { -+ path_put(&nd->path); -+ return -ENOENT; -+ } - return 0; - out_dput: - path_put_conditional(&next, nd); - break; - } -+ if (!gr_acl_handle_hidden_file(nd->path.dentry, nd->path.mnt)) -+ err = -ENOENT; -+ - path_put(&nd->path); - return_err: - return err; -@@ -1582,9 +1596,17 @@ static int __open_namei_create(struct na - int error; - struct dentry *dir = nd->path.dentry; - -+ if (!gr_acl_handle_creat(path->dentry, nd->path.dentry, nd->path.mnt, flag, mode)) { -+ error = -EACCES; -+ goto out_unlock_dput; -+ } -+ - if (!IS_POSIXACL(dir->d_inode)) - mode &= ~current->fs->umask; - error = vfs_create(dir->d_inode, path->dentry, mode, nd); -+ if (!error) -+ gr_handle_create(path->dentry, nd->path.mnt); -+out_unlock_dput: - mutex_unlock(&dir->d_inode->i_mutex); - dput(nd->path.dentry); - nd->path.dentry = path->dentry; -@@ -1665,6 +1687,17 @@ struct file *do_filp_open(int dfd, const - &nd, flag); - if (error) - return ERR_PTR(error); -+ -+ if (gr_handle_rawio(nd.path.dentry->d_inode)) { -+ error = -EPERM; -+ goto exit; -+ } -+ -+ if (!gr_acl_handle_open(nd.path.dentry, nd.path.mnt, flag)) { -+ error = -EACCES; -+ goto exit; -+ } -+ - goto ok; - } - -@@ -1737,6 +1770,20 @@ do_last: - /* - * It already exists. - */ -+ -+ if (gr_handle_rawio(path.dentry->d_inode)) { -+ error = -EPERM; -+ goto exit_mutex_unlock; -+ } -+ if (!gr_acl_handle_open(path.dentry, nd.path.mnt, flag)) { -+ error = -EACCES; -+ goto exit_mutex_unlock; -+ } -+ if (gr_handle_fifo(path.dentry, nd.path.mnt, dir, flag, acc_mode)) { -+ error = -EACCES; -+ goto exit_mutex_unlock; -+ } -+ - mutex_unlock(&dir->d_inode->i_mutex); - audit_inode(pathname, path.dentry); - -@@ -1822,6 +1869,13 @@ do_link: - error = security_inode_follow_link(path.dentry, &nd); - if (error) - goto exit_dput; -+ -+ if (gr_handle_follow_link(path.dentry->d_parent->d_inode, path.dentry->d_inode, -+ path.dentry, nd.path.mnt)) { -+ error = -EACCES; -+ goto exit_dput; -+ } -+ - error = __do_follow_link(&path, &nd); - if (error) { - /* Does someone understand code flow here? Or it is only -@@ -1994,6 +2048,17 @@ SYSCALL_DEFINE4(mknodat, int, dfd, const - error = may_mknod(mode); - if (error) - goto out_dput; -+ -+ if (gr_handle_chroot_mknod(dentry, nd.path.mnt, mode)) { -+ error = -EPERM; -+ goto out_dput; -+ } -+ -+ if (!gr_acl_handle_mknod(dentry, nd.path.dentry, nd.path.mnt, mode)) { -+ error = -EACCES; -+ goto out_dput; -+ } -+ - error = mnt_want_write(nd.path.mnt); - if (error) - goto out_dput; -@@ -2010,6 +2075,9 @@ SYSCALL_DEFINE4(mknodat, int, dfd, const - break; - } - mnt_drop_write(nd.path.mnt); -+ -+ if (!error) -+ gr_handle_create(dentry, nd.path.mnt); - out_dput: - dput(dentry); - out_unlock: -@@ -2063,6 +2131,11 @@ SYSCALL_DEFINE3(mkdirat, int, dfd, const - if (IS_ERR(dentry)) - goto out_unlock; - -+ if (!gr_acl_handle_mkdir(dentry, nd.path.dentry, nd.path.mnt)) { -+ error = -EACCES; -+ goto out_dput; -+ } -+ - if (!IS_POSIXACL(nd.path.dentry->d_inode)) - mode &= ~current->fs->umask; - error = mnt_want_write(nd.path.mnt); -@@ -2070,6 +2143,10 @@ SYSCALL_DEFINE3(mkdirat, int, dfd, const - goto out_dput; - error = vfs_mkdir(nd.path.dentry->d_inode, dentry, mode); - mnt_drop_write(nd.path.mnt); -+ -+ if (!error) -+ gr_handle_create(dentry, nd.path.mnt); -+ - out_dput: - dput(dentry); - out_unlock: -@@ -2151,6 +2228,8 @@ static long do_rmdir(int dfd, const char - char * name; - struct dentry *dentry; - struct nameidata nd; -+ ino_t saved_ino = 0; -+ dev_t saved_dev = 0; - - error = user_path_parent(dfd, pathname, &nd, &name); - if (error) -@@ -2175,11 +2254,26 @@ static long do_rmdir(int dfd, const char - error = PTR_ERR(dentry); - if (IS_ERR(dentry)) - goto exit2; -+ -+ if (dentry->d_inode != NULL) { -+ if (dentry->d_inode->i_nlink <= 1) { -+ saved_ino = dentry->d_inode->i_ino; -+ saved_dev = dentry->d_inode->i_sb->s_dev; -+ } -+ -+ if (!gr_acl_handle_rmdir(dentry, nd.path.mnt)) { -+ error = -EACCES; -+ goto exit3; -+ } -+ } -+ - error = mnt_want_write(nd.path.mnt); - if (error) - goto exit3; - error = vfs_rmdir(nd.path.dentry->d_inode, dentry); - mnt_drop_write(nd.path.mnt); -+ if (!error && (saved_dev || saved_ino)) -+ gr_handle_delete(saved_ino, saved_dev); - exit3: - dput(dentry); - exit2: -@@ -2239,6 +2333,8 @@ static long do_unlinkat(int dfd, const c - struct dentry *dentry; - struct nameidata nd; - struct inode *inode = NULL; -+ ino_t saved_ino = 0; -+ dev_t saved_dev = 0; - - error = user_path_parent(dfd, pathname, &nd, &name); - if (error) -@@ -2258,12 +2354,25 @@ static long do_unlinkat(int dfd, const c - if (nd.last.name[nd.last.len]) - goto slashes; - inode = dentry->d_inode; -- if (inode) -+ if (inode) { -+ if (inode->i_nlink <= 1) { -+ saved_ino = inode->i_ino; -+ saved_dev = inode->i_sb->s_dev; -+ } -+ - atomic_inc(&inode->i_count); -+ -+ if (!gr_acl_handle_unlink(dentry, nd.path.mnt)) { -+ error = -EACCES; -+ goto exit2; -+ } -+ } - error = mnt_want_write(nd.path.mnt); - if (error) - goto exit2; - error = vfs_unlink(nd.path.dentry->d_inode, dentry); -+ if (!error && (saved_ino || saved_dev)) -+ gr_handle_delete(saved_ino, saved_dev); - mnt_drop_write(nd.path.mnt); - exit2: - dput(dentry); -@@ -2341,10 +2450,17 @@ SYSCALL_DEFINE3(symlinkat, const char __ - if (IS_ERR(dentry)) - goto out_unlock; - -+ if (!gr_acl_handle_symlink(dentry, nd.path.dentry, nd.path.mnt, from)) { -+ error = -EACCES; -+ goto out_dput; -+ } -+ - error = mnt_want_write(nd.path.mnt); - if (error) - goto out_dput; - error = vfs_symlink(nd.path.dentry->d_inode, dentry, from); -+ if (!error) -+ gr_handle_create(dentry, nd.path.mnt); - mnt_drop_write(nd.path.mnt); - out_dput: - dput(dentry); -@@ -2437,10 +2553,26 @@ SYSCALL_DEFINE5(linkat, int, olddfd, con - error = PTR_ERR(new_dentry); - if (IS_ERR(new_dentry)) - goto out_unlock; -+ -+ if (gr_handle_hardlink(old_path.dentry, old_path.mnt, -+ old_path.dentry->d_inode, -+ old_path.dentry->d_inode->i_mode, to)) { -+ error = -EACCES; -+ goto out_dput; -+ } -+ -+ if (!gr_acl_handle_link(new_dentry, nd.path.dentry, nd.path.mnt, -+ old_path.dentry, old_path.mnt, to)) { -+ error = -EACCES; -+ goto out_dput; -+ } -+ - error = mnt_want_write(nd.path.mnt); - if (error) - goto out_dput; - error = vfs_link(old_path.dentry, nd.path.dentry->d_inode, new_dentry); -+ if (!error) -+ gr_handle_create(new_dentry, nd.path.mnt); - mnt_drop_write(nd.path.mnt); - out_dput: - dput(new_dentry); -@@ -2673,11 +2805,21 @@ SYSCALL_DEFINE4(renameat, int, olddfd, c - if (new_dentry == trap) - goto exit5; - -+ error = gr_acl_handle_rename(new_dentry, new_dir, newnd.path.mnt, -+ old_dentry, old_dir->d_inode, oldnd.path.mnt, -+ to); -+ if (error) -+ goto exit5; -+ - error = mnt_want_write(oldnd.path.mnt); - if (error) - goto exit5; - error = vfs_rename(old_dir->d_inode, old_dentry, - new_dir->d_inode, new_dentry); -+ if (!error) -+ gr_handle_rename(old_dir->d_inode, new_dir->d_inode, old_dentry, -+ new_dentry, oldnd.path.mnt, new_dentry->d_inode ? 1 : 0); -+ - mnt_drop_write(oldnd.path.mnt); - exit5: - dput(new_dentry); -diff -urNp linux-2.6.28.8/fs/namespace.c linux-2.6.28.8/fs/namespace.c ---- linux-2.6.28.8/fs/namespace.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/fs/namespace.c 2009-02-21 09:37:49.000000000 -0500 -@@ -1094,6 +1094,8 @@ static int do_umount(struct vfsmount *mn - lock_kernel(); - retval = do_remount_sb(sb, MS_RDONLY, NULL, 0); - unlock_kernel(); -+ -+ gr_log_remount(mnt->mnt_devname, retval); - } - up_write(&sb->s_umount); - return retval; -@@ -1117,6 +1119,9 @@ static int do_umount(struct vfsmount *mn - security_sb_umount_busy(mnt); - up_write(&namespace_sem); - release_mounts(&umount_list); -+ -+ gr_log_unmount(mnt->mnt_devname, retval); -+ - return retval; - } - -@@ -1946,6 +1951,11 @@ long do_mount(char *dev_name, char *dir_ - if (retval) - goto dput_out; - -+ if (gr_handle_chroot_mount(path.dentry, path.mnt, dev_name)) { -+ retval = -EPERM; -+ goto dput_out; -+ } -+ - if (flags & MS_REMOUNT) - retval = do_remount(&path, flags & ~MS_REMOUNT, mnt_flags, - data_page); -@@ -1960,6 +1970,9 @@ long do_mount(char *dev_name, char *dir_ - dev_name, data_page); - dput_out: - path_put(&path); -+ -+ gr_log_mount(dev_name, dir_name, retval); -+ - return retval; - } - -@@ -2071,6 +2084,9 @@ SYSCALL_DEFINE5(mount, char __user *, de - if (retval < 0) - goto out3; - -+ if (gr_handle_chroot_pivot()) -+ return -EPERM; -+ - lock_kernel(); - retval = do_mount((char *)dev_page, dir_page, (char *)type_page, - flags, (void *)data_page); -diff -urNp linux-2.6.28.8/fs/nfs/nfs4proc.c linux-2.6.28.8/fs/nfs/nfs4proc.c ---- linux-2.6.28.8/fs/nfs/nfs4proc.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/fs/nfs/nfs4proc.c 2009-02-21 09:37:49.000000000 -0500 -@@ -653,7 +653,7 @@ static int _nfs4_do_open_reclaim(struct - static int nfs4_do_open_reclaim(struct nfs_open_context *ctx, struct nfs4_state *state) - { - struct nfs_server *server = NFS_SERVER(state->inode); -- struct nfs4_exception exception = { }; -+ struct nfs4_exception exception = {0, 0}; - int err; - do { - err = _nfs4_do_open_reclaim(ctx, state); -@@ -695,7 +695,7 @@ static int _nfs4_open_delegation_recall( - - int nfs4_open_delegation_recall(struct nfs_open_context *ctx, struct nfs4_state *state, const nfs4_stateid *stateid) - { -- struct nfs4_exception exception = { }; -+ struct nfs4_exception exception = {0, 0}; - struct nfs_server *server = NFS_SERVER(state->inode); - int err; - do { -@@ -988,7 +988,7 @@ static int _nfs4_open_expired(struct nfs - static inline int nfs4_do_open_expired(struct nfs_open_context *ctx, struct nfs4_state *state) - { - struct nfs_server *server = NFS_SERVER(state->inode); -- struct nfs4_exception exception = { }; -+ struct nfs4_exception exception = {0, 0}; - int err; - - do { -@@ -1090,7 +1090,7 @@ out_err: - - static struct nfs4_state *nfs4_do_open(struct inode *dir, struct path *path, int flags, struct iattr *sattr, struct rpc_cred *cred) - { -- struct nfs4_exception exception = { }; -+ struct nfs4_exception exception = {0, 0}; - struct nfs4_state *res; - int status; - -@@ -1181,7 +1181,7 @@ static int nfs4_do_setattr(struct inode - struct nfs4_state *state) - { - struct nfs_server *server = NFS_SERVER(inode); -- struct nfs4_exception exception = { }; -+ struct nfs4_exception exception = {0, 0}; - int err; - do { - err = nfs4_handle_exception(server, -@@ -1494,7 +1494,7 @@ static int _nfs4_server_capabilities(str - - int nfs4_server_capabilities(struct nfs_server *server, struct nfs_fh *fhandle) - { -- struct nfs4_exception exception = { }; -+ struct nfs4_exception exception = {0, 0}; - int err; - do { - err = nfs4_handle_exception(server, -@@ -1527,7 +1527,7 @@ static int _nfs4_lookup_root(struct nfs_ - static int nfs4_lookup_root(struct nfs_server *server, struct nfs_fh *fhandle, - struct nfs_fsinfo *info) - { -- struct nfs4_exception exception = { }; -+ struct nfs4_exception exception = {0, 0}; - int err; - do { - err = nfs4_handle_exception(server, -@@ -1616,7 +1616,7 @@ static int _nfs4_proc_getattr(struct nfs - - static int nfs4_proc_getattr(struct nfs_server *server, struct nfs_fh *fhandle, struct nfs_fattr *fattr) - { -- struct nfs4_exception exception = { }; -+ struct nfs4_exception exception = {0, 0}; - int err; - do { - err = nfs4_handle_exception(server, -@@ -1704,7 +1704,7 @@ static int nfs4_proc_lookupfh(struct nfs - struct qstr *name, struct nfs_fh *fhandle, - struct nfs_fattr *fattr) - { -- struct nfs4_exception exception = { }; -+ struct nfs4_exception exception = {0, 0}; - int err; - do { - err = _nfs4_proc_lookupfh(server, dirfh, name, fhandle, fattr); -@@ -1733,7 +1733,7 @@ static int _nfs4_proc_lookup(struct inod - - static int nfs4_proc_lookup(struct inode *dir, struct qstr *name, struct nfs_fh *fhandle, struct nfs_fattr *fattr) - { -- struct nfs4_exception exception = { }; -+ struct nfs4_exception exception = {0, 0}; - int err; - do { - err = nfs4_handle_exception(NFS_SERVER(dir), -@@ -1797,7 +1797,7 @@ static int _nfs4_proc_access(struct inod - - static int nfs4_proc_access(struct inode *inode, struct nfs_access_entry *entry) - { -- struct nfs4_exception exception = { }; -+ struct nfs4_exception exception = {0, 0}; - int err; - do { - err = nfs4_handle_exception(NFS_SERVER(inode), -@@ -1852,7 +1852,7 @@ static int _nfs4_proc_readlink(struct in - static int nfs4_proc_readlink(struct inode *inode, struct page *page, - unsigned int pgbase, unsigned int pglen) - { -- struct nfs4_exception exception = { }; -+ struct nfs4_exception exception = {0, 0}; - int err; - do { - err = nfs4_handle_exception(NFS_SERVER(inode), -@@ -1949,7 +1949,7 @@ static int _nfs4_proc_remove(struct inod - - static int nfs4_proc_remove(struct inode *dir, struct qstr *name) - { -- struct nfs4_exception exception = { }; -+ struct nfs4_exception exception = {0, 0}; - int err; - do { - err = nfs4_handle_exception(NFS_SERVER(dir), -@@ -2021,7 +2021,7 @@ static int _nfs4_proc_rename(struct inod - static int nfs4_proc_rename(struct inode *old_dir, struct qstr *old_name, - struct inode *new_dir, struct qstr *new_name) - { -- struct nfs4_exception exception = { }; -+ struct nfs4_exception exception = {0, 0}; - int err; - do { - err = nfs4_handle_exception(NFS_SERVER(old_dir), -@@ -2068,7 +2068,7 @@ static int _nfs4_proc_link(struct inode - - static int nfs4_proc_link(struct inode *inode, struct inode *dir, struct qstr *name) - { -- struct nfs4_exception exception = { }; -+ struct nfs4_exception exception = {0, 0}; - int err; - do { - err = nfs4_handle_exception(NFS_SERVER(inode), -@@ -2159,7 +2159,7 @@ out: - static int nfs4_proc_symlink(struct inode *dir, struct dentry *dentry, - struct page *page, unsigned int len, struct iattr *sattr) - { -- struct nfs4_exception exception = { }; -+ struct nfs4_exception exception = {0, 0}; - int err; - do { - err = nfs4_handle_exception(NFS_SERVER(dir), -@@ -2190,7 +2190,7 @@ out: - static int nfs4_proc_mkdir(struct inode *dir, struct dentry *dentry, - struct iattr *sattr) - { -- struct nfs4_exception exception = { }; -+ struct nfs4_exception exception = {0, 0}; - int err; - do { - err = nfs4_handle_exception(NFS_SERVER(dir), -@@ -2239,7 +2239,7 @@ static int _nfs4_proc_readdir(struct den - static int nfs4_proc_readdir(struct dentry *dentry, struct rpc_cred *cred, - u64 cookie, struct page *page, unsigned int count, int plus) - { -- struct nfs4_exception exception = { }; -+ struct nfs4_exception exception = {0, 0}; - int err; - do { - err = nfs4_handle_exception(NFS_SERVER(dentry->d_inode), -@@ -2287,7 +2287,7 @@ out: - static int nfs4_proc_mknod(struct inode *dir, struct dentry *dentry, - struct iattr *sattr, dev_t rdev) - { -- struct nfs4_exception exception = { }; -+ struct nfs4_exception exception = {0, 0}; - int err; - do { - err = nfs4_handle_exception(NFS_SERVER(dir), -@@ -2316,7 +2316,7 @@ static int _nfs4_proc_statfs(struct nfs_ - - static int nfs4_proc_statfs(struct nfs_server *server, struct nfs_fh *fhandle, struct nfs_fsstat *fsstat) - { -- struct nfs4_exception exception = { }; -+ struct nfs4_exception exception = {0, 0}; - int err; - do { - err = nfs4_handle_exception(server, -@@ -2344,7 +2344,7 @@ static int _nfs4_do_fsinfo(struct nfs_se - - static int nfs4_do_fsinfo(struct nfs_server *server, struct nfs_fh *fhandle, struct nfs_fsinfo *fsinfo) - { -- struct nfs4_exception exception = { }; -+ struct nfs4_exception exception = {0, 0}; - int err; - - do { -@@ -2387,7 +2387,7 @@ static int _nfs4_proc_pathconf(struct nf - static int nfs4_proc_pathconf(struct nfs_server *server, struct nfs_fh *fhandle, - struct nfs_pathconf *pathconf) - { -- struct nfs4_exception exception = { }; -+ struct nfs4_exception exception = {0, 0}; - int err; - - do { -@@ -2674,7 +2674,7 @@ out_free: - - static ssize_t nfs4_get_acl_uncached(struct inode *inode, void *buf, size_t buflen) - { -- struct nfs4_exception exception = { }; -+ struct nfs4_exception exception = {0, 0}; - ssize_t ret; - do { - ret = __nfs4_get_acl_uncached(inode, buf, buflen); -@@ -2731,7 +2731,7 @@ static int __nfs4_proc_set_acl(struct in - - static int nfs4_proc_set_acl(struct inode *inode, const void *buf, size_t buflen) - { -- struct nfs4_exception exception = { }; -+ struct nfs4_exception exception = {0, 0}; - int err; - do { - err = nfs4_handle_exception(NFS_SERVER(inode), -@@ -3022,7 +3022,7 @@ out: - int nfs4_proc_delegreturn(struct inode *inode, struct rpc_cred *cred, const nfs4_stateid *stateid, int issync) - { - struct nfs_server *server = NFS_SERVER(inode); -- struct nfs4_exception exception = { }; -+ struct nfs4_exception exception = {0, 0}; - int err; - do { - err = _nfs4_proc_delegreturn(inode, cred, stateid, issync); -@@ -3097,7 +3097,7 @@ out: - - static int nfs4_proc_getlk(struct nfs4_state *state, int cmd, struct file_lock *request) - { -- struct nfs4_exception exception = { }; -+ struct nfs4_exception exception = {0, 0}; - int err; - - do { -@@ -3447,7 +3447,7 @@ static int _nfs4_do_setlk(struct nfs4_st - static int nfs4_lock_reclaim(struct nfs4_state *state, struct file_lock *request) - { - struct nfs_server *server = NFS_SERVER(state->inode); -- struct nfs4_exception exception = { }; -+ struct nfs4_exception exception = {0, 0}; - int err; - - do { -@@ -3465,7 +3465,7 @@ static int nfs4_lock_reclaim(struct nfs4 - static int nfs4_lock_expired(struct nfs4_state *state, struct file_lock *request) - { - struct nfs_server *server = NFS_SERVER(state->inode); -- struct nfs4_exception exception = { }; -+ struct nfs4_exception exception = {0, 0}; - int err; - - err = nfs4_set_lock_state(state, request); -@@ -3526,7 +3526,7 @@ out: - - static int nfs4_proc_setlk(struct nfs4_state *state, int cmd, struct file_lock *request) - { -- struct nfs4_exception exception = { }; -+ struct nfs4_exception exception = {0, 0}; - int err; - - do { -@@ -3576,7 +3576,7 @@ nfs4_proc_lock(struct file *filp, int cm - int nfs4_lock_delegation_recall(struct nfs4_state *state, struct file_lock *fl) - { - struct nfs_server *server = NFS_SERVER(state->inode); -- struct nfs4_exception exception = { }; -+ struct nfs4_exception exception = {0, 0}; - int err; - - err = nfs4_set_lock_state(state, fl); -diff -urNp linux-2.6.28.8/fs/nfsd/export.c linux-2.6.28.8/fs/nfsd/export.c ---- linux-2.6.28.8/fs/nfsd/export.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/fs/nfsd/export.c 2009-02-21 09:37:49.000000000 -0500 -@@ -472,7 +472,7 @@ static int secinfo_parse(char **mesg, ch - * probably discover the problem when someone fails to - * authenticate. - */ -- if (f->pseudoflavor < 0) -+ if ((s32)f->pseudoflavor < 0) - return -EINVAL; - err = get_int(mesg, &f->flags); - if (err) -diff -urNp linux-2.6.28.8/fs/nls/nls_base.c linux-2.6.28.8/fs/nls/nls_base.c ---- linux-2.6.28.8/fs/nls/nls_base.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/fs/nls/nls_base.c 2009-02-21 09:37:49.000000000 -0500 -@@ -40,7 +40,7 @@ static const struct utf8_table utf8_tabl - {0xF8, 0xF0, 3*6, 0x1FFFFF, 0x10000, /* 4 byte sequence */}, - {0xFC, 0xF8, 4*6, 0x3FFFFFF, 0x200000, /* 5 byte sequence */}, - {0xFE, 0xFC, 5*6, 0x7FFFFFFF, 0x4000000, /* 6 byte sequence */}, -- {0, /* end of table */} -+ {0, 0, 0, 0, 0, /* end of table */} - }; - - int -diff -urNp linux-2.6.28.8/fs/ntfs/file.c linux-2.6.28.8/fs/ntfs/file.c ---- linux-2.6.28.8/fs/ntfs/file.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/fs/ntfs/file.c 2009-02-21 09:37:49.000000000 -0500 -@@ -2291,6 +2291,6 @@ const struct inode_operations ntfs_file_ - #endif /* NTFS_RW */ - }; - --const struct file_operations ntfs_empty_file_ops = {}; -+const struct file_operations ntfs_empty_file_ops; - --const struct inode_operations ntfs_empty_inode_ops = {}; -+const struct inode_operations ntfs_empty_inode_ops; -diff -urNp linux-2.6.28.8/fs/open.c linux-2.6.28.8/fs/open.c ---- linux-2.6.28.8/fs/open.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/fs/open.c 2009-02-21 09:37:49.000000000 -0500 -@@ -205,6 +205,9 @@ int do_truncate(struct dentry *dentry, l - if (length < 0) - return -EINVAL; - -+ if (filp && !gr_acl_handle_truncate(dentry, filp->f_path.mnt)) -+ return -EACCES; -+ - newattrs.ia_size = length; - newattrs.ia_valid = ATTR_SIZE | time_attrs; - if (filp) { -@@ -510,6 +513,9 @@ SYSCALL_DEFINE3(faccessat, int, dfd, con - if (__mnt_is_readonly(path.mnt)) - res = -EROFS; - -+ if (!res && !gr_acl_handle_access(path.dentry, path.mnt, mode)) -+ res = -EACCES; -+ - out_path_release: - path_put(&path); - out: -@@ -540,6 +546,8 @@ SYSCALL_DEFINE1(chdir, const char __user - if (error) - goto dput_and_out; - -+ gr_log_chdir(path.dentry, path.mnt); -+ - set_fs_pwd(current->fs, &path); - - dput_and_out: -@@ -566,6 +574,13 @@ SYSCALL_DEFINE1(fchdir, unsigned int, fd - goto out_putf; - - error = inode_permission(inode, MAY_EXEC | MAY_ACCESS); -+ -+ if (!error && !gr_chroot_fchdir(file->f_path.dentry, file->f_path.mnt)) -+ error = -EPERM; -+ -+ if (!error) -+ gr_log_chdir(file->f_path.dentry, file->f_path.mnt); -+ - if (!error) - set_fs_pwd(current->fs, &file->f_path); - out_putf: -@@ -591,7 +606,14 @@ SYSCALL_DEFINE1(chroot, const char __use - if (!capable(CAP_SYS_CHROOT)) - goto dput_and_out; - -+ if (gr_handle_chroot_chroot(path.dentry, path.mnt)) -+ goto dput_and_out; -+ - set_fs_root(current->fs, &path); -+ -+ gr_handle_chroot_caps(current); -+ gr_handle_chroot_chdir(&path); -+ - error = 0; - dput_and_out: - path_put(&path); -@@ -619,13 +641,28 @@ SYSCALL_DEFINE2(fchmod, unsigned int, fd - err = mnt_want_write(file->f_path.mnt); - if (err) - goto out_putf; -+ -+ if (!gr_acl_handle_fchmod(dentry, file->f_path.mnt, mode)) { -+ err = -EACCES; -+ goto out_drop_write; -+ } -+ - mutex_lock(&inode->i_mutex); - if (mode == (mode_t) -1) - mode = inode->i_mode; -+ -+ if (gr_handle_chroot_chmod(dentry, file->f_path.mnt, mode)) { -+ err = -EPERM; -+ mutex_unlock(&inode->i_mutex); -+ goto out_drop_write; -+ } -+ - newattrs.ia_mode = (mode & S_IALLUGO) | (inode->i_mode & ~S_IALLUGO); - newattrs.ia_valid = ATTR_MODE | ATTR_CTIME; - err = notify_change(dentry, &newattrs); - mutex_unlock(&inode->i_mutex); -+ -+out_drop_write: - mnt_drop_write(file->f_path.mnt); - out_putf: - fput(file); -@@ -648,13 +685,28 @@ SYSCALL_DEFINE3(fchmodat, int, dfd, cons - error = mnt_want_write(path.mnt); - if (error) - goto dput_and_out; -+ -+ if (!gr_acl_handle_chmod(path.dentry, path.mnt, mode)) { -+ error = -EACCES; -+ goto out_drop_write; -+ } -+ - mutex_lock(&inode->i_mutex); - if (mode == (mode_t) -1) - mode = inode->i_mode; -+ -+ if (gr_handle_chroot_chmod(path.dentry, path.mnt, mode)) { -+ error = -EACCES; -+ mutex_unlock(&inode->i_mutex); -+ goto out_drop_write; -+ } -+ - newattrs.ia_mode = (mode & S_IALLUGO) | (inode->i_mode & ~S_IALLUGO); - newattrs.ia_valid = ATTR_MODE | ATTR_CTIME; - error = notify_change(path.dentry, &newattrs); - mutex_unlock(&inode->i_mutex); -+ -+out_drop_write: - mnt_drop_write(path.mnt); - dput_and_out: - path_put(&path); -@@ -667,12 +719,15 @@ SYSCALL_DEFINE2(chmod, const char __user - return sys_fchmodat(AT_FDCWD, filename, mode); - } - --static int chown_common(struct dentry * dentry, uid_t user, gid_t group) -+static int chown_common(struct dentry * dentry, uid_t user, gid_t group, struct vfsmount *mnt) - { - struct inode *inode = dentry->d_inode; - int error; - struct iattr newattrs; - -+ if (!gr_acl_handle_chown(dentry, mnt)) -+ return -EACCES; -+ - newattrs.ia_valid = ATTR_CTIME; - if (user != (uid_t) -1) { - newattrs.ia_valid |= ATTR_UID; -@@ -703,7 +758,7 @@ SYSCALL_DEFINE3(chown, const char __user - error = mnt_want_write(path.mnt); - if (error) - goto out_release; -- error = chown_common(path.dentry, user, group); -+ error = chown_common(path.dentry, user, group, path.mnt); - mnt_drop_write(path.mnt); - out_release: - path_put(&path); -@@ -728,7 +783,7 @@ SYSCALL_DEFINE5(fchownat, int, dfd, cons - error = mnt_want_write(path.mnt); - if (error) - goto out_release; -- error = chown_common(path.dentry, user, group); -+ error = chown_common(path.dentry, user, group, path.mnt); - mnt_drop_write(path.mnt); - out_release: - path_put(&path); -@@ -747,7 +802,7 @@ SYSCALL_DEFINE3(lchown, const char __use - error = mnt_want_write(path.mnt); - if (error) - goto out_release; -- error = chown_common(path.dentry, user, group); -+ error = chown_common(path.dentry, user, group, path.mnt); - mnt_drop_write(path.mnt); - out_release: - path_put(&path); -@@ -770,7 +825,7 @@ SYSCALL_DEFINE3(fchown, unsigned int, fd - goto out_fput; - dentry = file->f_path.dentry; - audit_inode(NULL, dentry); -- error = chown_common(dentry, user, group); -+ error = chown_common(dentry, user, group, file->f_path.mnt); - mnt_drop_write(file->f_path.mnt); - out_fput: - fput(file); -diff -urNp linux-2.6.28.8/fs/pipe.c linux-2.6.28.8/fs/pipe.c ---- linux-2.6.28.8/fs/pipe.c 2009-03-07 10:24:49.000000000 -0500 -+++ linux-2.6.28.8/fs/pipe.c 2009-03-07 14:13:22.000000000 -0500 -@@ -848,7 +848,7 @@ void free_pipe_info(struct inode *inode) - inode->i_pipe = NULL; - } - --static struct vfsmount *pipe_mnt __read_mostly; -+struct vfsmount *pipe_mnt __read_mostly; - static int pipefs_delete_dentry(struct dentry *dentry) - { - /* -diff -urNp linux-2.6.28.8/fs/proc/array.c linux-2.6.28.8/fs/proc/array.c ---- linux-2.6.28.8/fs/proc/array.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/fs/proc/array.c 2009-02-21 09:37:49.000000000 -0500 -@@ -308,6 +308,21 @@ static inline void task_context_switch_c - p->nivcsw); - } - -+#if defined(CONFIG_PAX_NOEXEC) || defined(CONFIG_PAX_ASLR) -+static inline void task_pax(struct seq_file *m, struct task_struct *p) -+{ -+ if (p->mm) -+ seq_printf(m, "PaX:\t%c%c%c%c%c\n", -+ p->mm->pax_flags & MF_PAX_PAGEEXEC ? 'P' : 'p', -+ p->mm->pax_flags & MF_PAX_EMUTRAMP ? 'E' : 'e', -+ p->mm->pax_flags & MF_PAX_MPROTECT ? 'M' : 'm', -+ p->mm->pax_flags & MF_PAX_RANDMMAP ? 'R' : 'r', -+ p->mm->pax_flags & MF_PAX_SEGMEXEC ? 'S' : 's'); -+ else -+ seq_printf(m, "PaX:\t-----\n"); -+} -+#endif -+ - int proc_pid_status(struct seq_file *m, struct pid_namespace *ns, - struct pid *pid, struct task_struct *task) - { -@@ -327,9 +342,20 @@ int proc_pid_status(struct seq_file *m, - task_show_regs(m, task); - #endif - task_context_switch_counts(m, task); -+ -+#if defined(CONFIG_PAX_NOEXEC) || defined(CONFIG_PAX_ASLR) -+ task_pax(m, task); -+#endif -+ - return 0; - } - -+#ifdef CONFIG_GRKERNSEC_PROC_MEMMAP -+#define PAX_RAND_FLAGS(_mm) (_mm != NULL && _mm != current->mm && \ -+ (_mm->pax_flags & MF_PAX_RANDMMAP || \ -+ _mm->pax_flags & MF_PAX_SEGMEXEC)) -+#endif -+ - static int do_task_stat(struct seq_file *m, struct pid_namespace *ns, - struct pid *pid, struct task_struct *task, int whole) - { -@@ -422,6 +448,19 @@ static int do_task_stat(struct seq_file - gtime = task_gtime(task); - } - -+#ifdef CONFIG_GRKERNSEC_PROC_MEMMAP -+ if (PAX_RAND_FLAGS(mm)) { -+ eip = 0; -+ esp = 0; -+ wchan = 0; -+ } -+#endif -+#ifdef CONFIG_GRKERNSEC_HIDESYM -+ wchan = 0; -+ eip =0; -+ esp =0; -+#endif -+ - /* scale priority and nice values from timeslices to -20..20 */ - /* to make it look like a "normal" Unix priority/nice value */ - priority = task_prio(task); -@@ -462,9 +501,15 @@ static int do_task_stat(struct seq_file - vsize, - mm ? get_mm_rss(mm) : 0, - rsslim, -+#ifdef CONFIG_GRKERNSEC_PROC_MEMMAP -+ PAX_RAND_FLAGS(mm) ? 1 : (mm ? mm->start_code : 0), -+ PAX_RAND_FLAGS(mm) ? 1 : (mm ? mm->end_code : 0), -+ PAX_RAND_FLAGS(mm) ? 0 : (mm ? mm->start_stack : 0), -+#else - mm ? mm->start_code : 0, - mm ? mm->end_code : 0, - mm ? mm->start_stack : 0, -+#endif - esp, - eip, - /* The signal information here is obsolete. -@@ -517,3 +562,10 @@ int proc_pid_statm(struct seq_file *m, s - - return 0; - } -+ -+#ifdef CONFIG_GRKERNSEC_PROC_IPADDR -+int proc_pid_ipaddr(struct task_struct *task, char *buffer) -+{ -+ return sprintf(buffer, "%u.%u.%u.%u\n", NIPQUAD(task->signal->curr_ip)); -+} -+#endif -diff -urNp linux-2.6.28.8/fs/proc/base.c linux-2.6.28.8/fs/proc/base.c ---- linux-2.6.28.8/fs/proc/base.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/fs/proc/base.c 2009-03-07 05:50:38.000000000 -0500 -@@ -225,6 +225,9 @@ static int check_mem_permission(struct t - if (task == current) - return 0; - -+ if (gr_handle_proc_ptrace(task) || gr_acl_handle_procpidmem(task)) -+ return -EPERM; -+ - /* - * If current is actively ptrace'ing, and would also be - * permitted to freshly attach with ptrace now, permit it. -@@ -302,15 +305,29 @@ out: - return res; - } - --static int proc_pid_auxv(struct task_struct *task, char *buffer) -+#ifdef CONFIG_GRKERNSEC_PROC_MEMMAP -+#define PAX_RAND_FLAGS(_mm) (_mm != NULL && _mm != current->mm && \ -+ (_mm->pax_flags & MF_PAX_RANDMMAP || \ -+ _mm->pax_flags & MF_PAX_SEGMEXEC)) -+#endif -+ -+static -+int proc_pid_auxv(struct task_struct *task, char *buffer) - { - int res = 0; - struct mm_struct *mm = get_task_mm(task); - if (mm) { - unsigned int nwords = 0; -- do -+ -+#ifdef CONFIG_GRKERNSEC_PROC_MEMMAP -+ if (PAX_RAND_FLAGS(mm)) { -+ mmput(mm); -+ return res; -+ } -+#endif -+ do { - nwords += 2; -- while (mm->saved_auxv[nwords - 2] != 0); /* AT_NULL */ -+ } while (mm->saved_auxv[nwords - 2] != 0); /* AT_NULL */ - res = nwords * sizeof(mm->saved_auxv[0]); - if (res > PAGE_SIZE) - res = PAGE_SIZE; -@@ -502,7 +519,7 @@ static int proc_pid_limits(struct task_s - return count; - } - --#ifdef CONFIG_HAVE_ARCH_TRACEHOOK -+#if defined(CONFIG_HAVE_ARCH_TRACEHOOK) && !defined(CONFIG_GRKERNSEC_PROC_MEMMAP) - static int proc_pid_syscall(struct task_struct *task, char *buffer) - { - long nr; -@@ -1429,7 +1446,11 @@ static struct inode *proc_pid_make_inode - inode->i_gid = 0; - if (task_dumpable(task)) { - inode->i_uid = task->euid; -+#ifdef CONFIG_GRKERNSEC_PROC_USERGROUP -+ inode->i_gid = CONFIG_GRKERNSEC_PROC_GID; -+#else - inode->i_gid = task->egid; -+#endif - } - security_task_to_inode(task, inode); - -@@ -1445,17 +1466,45 @@ static int pid_getattr(struct vfsmount * - { - struct inode *inode = dentry->d_inode; - struct task_struct *task; -+#if defined(CONFIG_GRKERNSEC_PROC_USER) || defined(CONFIG_GRKERNSEC_PROC_USERGROUP) -+ struct task_struct *tmp = current; -+#endif -+ - generic_fillattr(inode, stat); - - rcu_read_lock(); - stat->uid = 0; - stat->gid = 0; - task = pid_task(proc_pid(inode), PIDTYPE_PID); -- if (task) { -+ -+ if (task && (gr_pid_is_chrooted(task) || gr_check_hidden_task(task))) { -+ rcu_read_unlock(); -+ return -ENOENT; -+ } -+ -+ -+ if (task -+#if defined(CONFIG_GRKERNSEC_PROC_USER) || defined(CONFIG_GRKERNSEC_PROC_USERGROUP) -+ && (!tmp->uid || (tmp->uid == task->uid) -+#ifdef CONFIG_GRKERNSEC_PROC_USERGROUP -+ || in_group_p(CONFIG_GRKERNSEC_PROC_GID) -+#endif -+ ) -+#endif -+ ) { - if ((inode->i_mode == (S_IFDIR|S_IRUGO|S_IXUGO)) || -+#ifdef CONFIG_GRKERNSEC_PROC_USER -+ (inode->i_mode == (S_IFDIR|S_IRUSR|S_IXUSR)) || -+#elif defined(CONFIG_GRKERNSEC_PROC_USERGROUP) -+ (inode->i_mode == (S_IFDIR|S_IRUSR|S_IRGRP|S_IXUSR|S_IXGRP)) || -+#endif - task_dumpable(task)) { - stat->uid = task->euid; -+#ifdef CONFIG_GRKERNSEC_PROC_USERGROUP -+ stat->gid = CONFIG_GRKERNSEC_PROC_GID; -+#else - stat->gid = task->egid; -+#endif - } - } - rcu_read_unlock(); -@@ -1483,11 +1532,21 @@ static int pid_revalidate(struct dentry - { - struct inode *inode = dentry->d_inode; - struct task_struct *task = get_proc_task(inode); -+ - if (task) { - if ((inode->i_mode == (S_IFDIR|S_IRUGO|S_IXUGO)) || -+#ifdef CONFIG_GRKERNSEC_PROC_USER -+ (inode->i_mode == (S_IFDIR|S_IRUSR|S_IXUSR)) || -+#elif defined(CONFIG_GRKERNSEC_PROC_USERGROUP) -+ (inode->i_mode == (S_IFDIR|S_IRUSR|S_IRGRP|S_IXUSR|S_IXGRP)) || -+#endif - task_dumpable(task)) { - inode->i_uid = task->euid; -+#ifdef CONFIG_GRKERNSEC_PROC_USERGROUP -+ inode->i_gid = CONFIG_GRKERNSEC_PROC_GID; -+#else - inode->i_gid = task->egid; -+#endif - } else { - inode->i_uid = 0; - inode->i_gid = 0; -@@ -1855,12 +1914,22 @@ static const struct file_operations proc - static int proc_fd_permission(struct inode *inode, int mask) - { - int rv; -+ struct task_struct *task; - - rv = generic_permission(inode, mask, NULL); -- if (rv == 0) -- return 0; -+ - if (task_pid(current) == proc_pid(inode)) - rv = 0; -+ -+ task = get_proc_task(inode); -+ if (task == NULL) -+ return rv; -+ -+ if (gr_acl_handle_procpidmem(task)) -+ rv = -EACCES; -+ -+ put_task_struct(task); -+ - return rv; - } - -@@ -1971,6 +2040,9 @@ static struct dentry *proc_pident_lookup - if (!task) - goto out_no_task; - -+ if (gr_pid_is_chrooted(task) || gr_check_hidden_task(task)) -+ goto out; -+ - /* - * Yes, it does not scale. And it should not. Don't add - * new entries into /proc/<tgid>/ without very good reasons. -@@ -2015,6 +2087,9 @@ static int proc_pident_readdir(struct fi - if (!task) - goto out_no_task; - -+ if (gr_pid_is_chrooted(task) || gr_check_hidden_task(task)) -+ goto out; -+ - ret = 0; - i = filp->f_pos; - switch (i) { -@@ -2377,6 +2452,9 @@ static struct dentry *proc_base_lookup(s - if (p > last) - goto out; - -+ if (gr_pid_is_chrooted(task) || gr_check_hidden_task(task)) -+ goto out; -+ - error = proc_base_instantiate(dir, dentry, task, p); - - out: -@@ -2463,7 +2541,7 @@ static const struct pid_entry tgid_base_ - #ifdef CONFIG_SCHED_DEBUG - REG("sched", S_IRUGO|S_IWUSR, pid_sched), - #endif --#ifdef CONFIG_HAVE_ARCH_TRACEHOOK -+#if defined(CONFIG_HAVE_ARCH_TRACEHOOK) && !defined(CONFIG_GRKERNSEC_PROC_MEMMAP) - INF("syscall", S_IRUSR, pid_syscall), - #endif - INF("cmdline", S_IRUGO, pid_cmdline), -@@ -2518,6 +2596,9 @@ static const struct pid_entry tgid_base_ - #ifdef CONFIG_TASK_IO_ACCOUNTING - INF("io", S_IRUGO, tgid_io_accounting), - #endif -+#ifdef CONFIG_GRKERNSEC_PROC_IPADDR -+ INF("ipaddr", S_IRUSR, pid_ipaddr), -+#endif - }; - - static int proc_tgid_base_readdir(struct file * filp, -@@ -2647,7 +2728,14 @@ static struct dentry *proc_pid_instantia - if (!inode) - goto out; - -+#ifdef CONFIG_GRKERNSEC_PROC_USER -+ inode->i_mode = S_IFDIR|S_IRUSR|S_IXUSR; -+#elif defined(CONFIG_GRKERNSEC_PROC_USERGROUP) -+ inode->i_gid = CONFIG_GRKERNSEC_PROC_GID; -+ inode->i_mode = S_IFDIR|S_IRUSR|S_IRGRP|S_IXUSR|S_IXGRP; -+#else - inode->i_mode = S_IFDIR|S_IRUGO|S_IXUGO; -+#endif - inode->i_op = &proc_tgid_base_inode_operations; - inode->i_fop = &proc_tgid_base_operations; - inode->i_flags|=S_IMMUTABLE; -@@ -2689,7 +2777,11 @@ struct dentry *proc_pid_lookup(struct in - if (!task) - goto out; - -+ if (gr_check_hidden_task(task)) -+ goto out_put_task; -+ - result = proc_pid_instantiate(dir, dentry, task, NULL); -+out_put_task: - put_task_struct(task); - out: - return result; -@@ -2754,6 +2846,9 @@ int proc_pid_readdir(struct file * filp, - { - unsigned int nr = filp->f_pos - FIRST_PROCESS_ENTRY; - struct task_struct *reaper = get_proc_task(filp->f_path.dentry->d_inode); -+#if defined(CONFIG_GRKERNSEC_PROC_USER) || defined(CONFIG_GRKERNSEC_PROC_USERGROUP) -+ struct task_struct *tmp = current; -+#endif - struct tgid_iter iter; - struct pid_namespace *ns; - -@@ -2772,6 +2867,17 @@ int proc_pid_readdir(struct file * filp, - for (iter = next_tgid(ns, iter); - iter.task; - iter.tgid += 1, iter = next_tgid(ns, iter)) { -+ if (gr_pid_is_chrooted(iter.task) || gr_check_hidden_task(iter.task) -+#if defined(CONFIG_GRKERNSEC_PROC_USER) || defined(CONFIG_GRKERNSEC_PROC_USERGROUP) -+ || (tmp->uid && (iter.task->uid != tmp->uid) -+#ifdef CONFIG_GRKERNSEC_PROC_USERGROUP -+ && !in_group_p(CONFIG_GRKERNSEC_PROC_GID) -+#endif -+ ) -+#endif -+ ) -+ continue; -+ - filp->f_pos = iter.tgid + TGID_OFFSET; - if (proc_pid_fill_cache(filp, dirent, filldir, iter) < 0) { - put_task_struct(iter.task); -@@ -2799,7 +2905,7 @@ static const struct pid_entry tid_base_s - #ifdef CONFIG_SCHED_DEBUG - REG("sched", S_IRUGO|S_IWUSR, pid_sched), - #endif --#ifdef CONFIG_HAVE_ARCH_TRACEHOOK -+#if defined(CONFIG_HAVE_ARCH_TRACEHOOK) && !defined(CONFIG_GRKERNSEC_PROC_MEMMAP) - INF("syscall", S_IRUSR, pid_syscall), - #endif - INF("cmdline", S_IRUGO, pid_cmdline), -diff -urNp linux-2.6.28.8/fs/proc/cmdline.c linux-2.6.28.8/fs/proc/cmdline.c ---- linux-2.6.28.8/fs/proc/cmdline.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/fs/proc/cmdline.c 2009-02-21 09:37:49.000000000 -0500 -@@ -23,7 +23,11 @@ static const struct file_operations cmdl - - static int __init proc_cmdline_init(void) - { -+#ifdef CONFIG_GRKERNSEC_PROC_ADD -+ proc_create_grsec("cmdline", 0, NULL, &cmdline_proc_fops); -+#else - proc_create("cmdline", 0, NULL, &cmdline_proc_fops); -+#endif - return 0; - } - module_init(proc_cmdline_init); -diff -urNp linux-2.6.28.8/fs/proc/devices.c linux-2.6.28.8/fs/proc/devices.c ---- linux-2.6.28.8/fs/proc/devices.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/fs/proc/devices.c 2009-02-21 09:37:49.000000000 -0500 -@@ -64,7 +64,11 @@ static const struct file_operations proc - - static int __init proc_devices_init(void) - { -+#ifdef CONFIG_GRKERNSEC_PROC_ADD -+ proc_create_grsec("devices", 0, NULL, &proc_devinfo_operations); -+#else - proc_create("devices", 0, NULL, &proc_devinfo_operations); -+#endif - return 0; - } - module_init(proc_devices_init); -diff -urNp linux-2.6.28.8/fs/proc/inode.c linux-2.6.28.8/fs/proc/inode.c ---- linux-2.6.28.8/fs/proc/inode.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/fs/proc/inode.c 2009-02-21 09:37:49.000000000 -0500 -@@ -466,7 +466,11 @@ struct inode *proc_get_inode(struct supe - if (de->mode) { - inode->i_mode = de->mode; - inode->i_uid = de->uid; -+#ifdef CONFIG_GRKERNSEC_PROC_USERGROUP -+ inode->i_gid = CONFIG_GRKERNSEC_PROC_GID; -+#else - inode->i_gid = de->gid; -+#endif - } - if (de->size) - inode->i_size = de->size; -diff -urNp linux-2.6.28.8/fs/proc/internal.h linux-2.6.28.8/fs/proc/internal.h ---- linux-2.6.28.8/fs/proc/internal.h 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/fs/proc/internal.h 2009-02-21 09:37:49.000000000 -0500 -@@ -53,6 +53,9 @@ extern int proc_pid_status(struct seq_fi - struct pid *pid, struct task_struct *task); - extern int proc_pid_statm(struct seq_file *m, struct pid_namespace *ns, - struct pid *pid, struct task_struct *task); -+#ifdef CONFIG_GRKERNSEC_PROC_IPADDR -+extern int proc_pid_ipaddr(struct task_struct *task, char *buffer); -+#endif - extern loff_t mem_lseek(struct file *file, loff_t offset, int orig); - - extern const struct file_operations proc_maps_operations; -diff -urNp linux-2.6.28.8/fs/proc/Kconfig linux-2.6.28.8/fs/proc/Kconfig ---- linux-2.6.28.8/fs/proc/Kconfig 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/fs/proc/Kconfig 2009-02-21 09:37:49.000000000 -0500 -@@ -30,12 +30,12 @@ config PROC_FS - - config PROC_KCORE - bool "/proc/kcore support" if !ARM -- depends on PROC_FS && MMU -+ depends on PROC_FS && MMU && !GRKERNSEC_PROC_ADD - - config PROC_VMCORE - bool "/proc/vmcore support (EXPERIMENTAL)" -- depends on PROC_FS && CRASH_DUMP -- default y -+ depends on PROC_FS && CRASH_DUMP && !GRKERNSEC -+ default n - help - Exports the dump image of crashed kernel in ELF format. - -@@ -59,8 +59,8 @@ config PROC_SYSCTL - limited in memory. - - config PROC_PAGE_MONITOR -- default y -- depends on PROC_FS && MMU -+ default n -+ depends on PROC_FS && MMU && !GRKERNSEC - bool "Enable /proc page monitoring" if EMBEDDED - help - Various /proc files exist to monitor process memory utilization: -diff -urNp linux-2.6.28.8/fs/proc/kcore.c linux-2.6.28.8/fs/proc/kcore.c ---- linux-2.6.28.8/fs/proc/kcore.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/fs/proc/kcore.c 2009-02-21 09:37:49.000000000 -0500 -@@ -404,10 +404,12 @@ read_kcore(struct file *file, char __use - - static int __init proc_kcore_init(void) - { -+#if !defined(CONFIG_GRKERNSEC_PROC_ADD) - proc_root_kcore = proc_create("kcore", S_IRUSR, NULL, &proc_kcore_operations); - if (proc_root_kcore) - proc_root_kcore->size = - (size_t)high_memory - PAGE_OFFSET + PAGE_SIZE; -+#endif - return 0; - } - module_init(proc_kcore_init); -diff -urNp linux-2.6.28.8/fs/proc/proc_net.c linux-2.6.28.8/fs/proc/proc_net.c ---- linux-2.6.28.8/fs/proc/proc_net.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/fs/proc/proc_net.c 2009-02-21 09:37:49.000000000 -0500 -@@ -106,6 +106,14 @@ static struct net *get_proc_task_net(str - struct nsproxy *ns; - struct net *net = NULL; - -+#ifdef CONFIG_GRKERNSEC_PROC_USER -+ if (current->fsuid) -+ return net; -+#elif defined(CONFIG_GRKERNSEC_PROC_USERGROUP) -+ if (current->fsuid && !in_group_p(CONFIG_GRKERNSEC_PROC_GID)) -+ return net; -+#endif -+ - rcu_read_lock(); - task = pid_task(proc_pid(dir), PIDTYPE_PID); - if (task != NULL) { -diff -urNp linux-2.6.28.8/fs/proc/proc_sysctl.c linux-2.6.28.8/fs/proc/proc_sysctl.c ---- linux-2.6.28.8/fs/proc/proc_sysctl.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/fs/proc/proc_sysctl.c 2009-02-21 09:37:49.000000000 -0500 -@@ -7,6 +7,8 @@ - #include <linux/security.h> - #include "internal.h" - -+extern __u32 gr_handle_sysctl(const struct ctl_table *table, const int op); -+ - static struct dentry_operations proc_sys_dentry_operations; - static const struct file_operations proc_sys_file_operations; - static const struct inode_operations proc_sys_inode_operations; -@@ -110,6 +112,9 @@ static struct dentry *proc_sys_lookup(st - if (!p) - goto out; - -+ if (gr_handle_sysctl(p, MAY_EXEC)) -+ goto out; -+ - err = ERR_PTR(-ENOMEM); - inode = proc_sys_make_inode(dir->i_sb, h ? h : head, p); - if (h) -@@ -229,6 +234,9 @@ static int scan(struct ctl_table_header - if (*pos < file->f_pos) - continue; - -+ if (gr_handle_sysctl(table, 0)) -+ continue; -+ - res = proc_sys_fill_cache(file, dirent, filldir, head, table); - if (res) - return res; -@@ -345,6 +353,9 @@ static int proc_sys_getattr(struct vfsmo - if (IS_ERR(head)) - return PTR_ERR(head); - -+ if (table && gr_handle_sysctl(table, MAY_EXEC)) -+ return -ENOENT; -+ - generic_fillattr(inode, stat); - if (table) - stat->mode = (stat->mode & S_IFMT) | table->mode; -diff -urNp linux-2.6.28.8/fs/proc/root.c linux-2.6.28.8/fs/proc/root.c ---- linux-2.6.28.8/fs/proc/root.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/fs/proc/root.c 2009-02-21 09:37:49.000000000 -0500 -@@ -135,7 +135,15 @@ void __init proc_root_init(void) - #ifdef CONFIG_PROC_DEVICETREE - proc_device_tree_init(); - #endif -+#ifdef CONFIG_GRKERNSEC_PROC_ADD -+#ifdef CONFIG_GRKERNSEC_PROC_USER -+ proc_mkdir_mode("bus", S_IRUSR | S_IXUSR, NULL); -+#elif defined(CONFIG_GRKERNSEC_PROC_USERGROUP) -+ proc_mkdir_mode("bus", S_IRUSR | S_IXUSR | S_IRGRP | S_IXGRP, NULL); -+#endif -+#else - proc_mkdir("bus", NULL); -+#endif - proc_sys_init(); - } - -diff -urNp linux-2.6.28.8/fs/proc/task_mmu.c linux-2.6.28.8/fs/proc/task_mmu.c ---- linux-2.6.28.8/fs/proc/task_mmu.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/fs/proc/task_mmu.c 2009-02-21 09:37:49.000000000 -0500 -@@ -46,15 +46,26 @@ void task_mem(struct seq_file *m, struct - "VmStk:\t%8lu kB\n" - "VmExe:\t%8lu kB\n" - "VmLib:\t%8lu kB\n" -- "VmPTE:\t%8lu kB\n", -- hiwater_vm << (PAGE_SHIFT-10), -+ "VmPTE:\t%8lu kB\n" -+ -+#ifdef CONFIG_ARCH_TRACK_EXEC_LIMIT -+ "CsBase:\t%8lx\nCsLim:\t%8lx\n" -+#endif -+ -+ ,hiwater_vm << (PAGE_SHIFT-10), - (total_vm - mm->reserved_vm) << (PAGE_SHIFT-10), - mm->locked_vm << (PAGE_SHIFT-10), - hiwater_rss << (PAGE_SHIFT-10), - total_rss << (PAGE_SHIFT-10), - data << (PAGE_SHIFT-10), - mm->stack_vm << (PAGE_SHIFT-10), text, lib, -- (PTRS_PER_PTE*sizeof(pte_t)*mm->nr_ptes) >> 10); -+ (PTRS_PER_PTE*sizeof(pte_t)*mm->nr_ptes) >> 10 -+ -+#ifdef CONFIG_ARCH_TRACK_EXEC_LIMIT -+ , mm->context.user_cs_base, mm->context.user_cs_limit -+#endif -+ -+ ); - } - - unsigned long task_vsize(struct mm_struct *mm) -@@ -198,6 +209,12 @@ static int do_maps_open(struct inode *in - return ret; - } - -+#ifdef CONFIG_GRKERNSEC_PROC_MEMMAP -+#define PAX_RAND_FLAGS(_mm) (_mm != NULL && _mm != current->mm && \ -+ (_mm->pax_flags & MF_PAX_RANDMMAP || \ -+ _mm->pax_flags & MF_PAX_SEGMEXEC)) -+#endif -+ - static void show_map_vma(struct seq_file *m, struct vm_area_struct *vma) - { - struct mm_struct *mm = vma->vm_mm; -@@ -214,13 +231,22 @@ static void show_map_vma(struct seq_file - } - - seq_printf(m, "%08lx-%08lx %c%c%c%c %08llx %02x:%02x %lu %n", -+#ifdef CONFIG_GRKERNSEC_PROC_MEMMAP -+ PAX_RAND_FLAGS(mm) ? 0UL : vma->vm_start, -+ PAX_RAND_FLAGS(mm) ? 0UL : vma->vm_end, -+#else - vma->vm_start, - vma->vm_end, -+#endif - flags & VM_READ ? 'r' : '-', - flags & VM_WRITE ? 'w' : '-', - flags & VM_EXEC ? 'x' : '-', - flags & VM_MAYSHARE ? 's' : 'p', -+#ifdef CONFIG_GRKERNSEC_PROC_MEMMAP -+ PAX_RAND_FLAGS(mm) ? 0UL : ((loff_t)vma->vm_pgoff) << PAGE_SHIFT, -+#else - ((loff_t)vma->vm_pgoff) << PAGE_SHIFT, -+#endif - MAJOR(dev), MINOR(dev), ino, &len); - - /* -@@ -234,11 +260,11 @@ static void show_map_vma(struct seq_file - const char *name = arch_vma_name(vma); - if (!name) { - if (mm) { -- if (vma->vm_start <= mm->start_brk && -- vma->vm_end >= mm->brk) { -+ if (vma->vm_start <= mm->brk && vma->vm_end >= mm->start_brk) { - name = "[heap]"; -- } else if (vma->vm_start <= mm->start_stack && -- vma->vm_end >= mm->start_stack) { -+ } else if ((vma->vm_flags & (VM_GROWSDOWN | VM_GROWSUP)) || -+ (vma->vm_start <= mm->start_stack && -+ vma->vm_end >= mm->start_stack)) { - name = "[stack]"; - } - } else { -@@ -381,9 +407,16 @@ static int show_smap(struct seq_file *m, - }; - - memset(&mss, 0, sizeof mss); -- mss.vma = vma; -- if (vma->vm_mm && !is_vm_hugetlb_page(vma)) -- walk_page_range(vma->vm_start, vma->vm_end, &smaps_walk); -+ -+#ifdef CONFIG_GRKERNSEC_PROC_MEMMAP -+ if (!PAX_RAND_FLAGS(vma->vm_mm)) { -+#endif -+ mss.vma = vma; -+ if (vma->vm_mm && !is_vm_hugetlb_page(vma)) -+ walk_page_range(vma->vm_start, vma->vm_end, &smaps_walk); -+#ifdef CONFIG_GRKERNSEC_PROC_MEMMAP -+ } -+#endif - - show_map_vma(m, vma); - -@@ -397,7 +430,11 @@ static int show_smap(struct seq_file *m, - "Private_Dirty: %8lu kB\n" - "Referenced: %8lu kB\n" - "Swap: %8lu kB\n", -+#ifdef CONFIG_GRKERNSEC_PROC_MEMMAP -+ PAX_RAND_FLAGS(vma->vm_mm) ? 0UL : (vma->vm_end - vma->vm_start) >> 10, -+#else - (vma->vm_end - vma->vm_start) >> 10, -+#endif - mss.resident >> 10, - (unsigned long)(mss.pss >> (10 + PSS_SHIFT)), - mss.shared_clean >> 10, -diff -urNp linux-2.6.28.8/fs/readdir.c linux-2.6.28.8/fs/readdir.c ---- linux-2.6.28.8/fs/readdir.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/fs/readdir.c 2009-02-21 09:37:49.000000000 -0500 -@@ -16,6 +16,7 @@ - #include <linux/security.h> - #include <linux/syscalls.h> - #include <linux/unistd.h> -+#include <linux/namei.h> - - #include <asm/uaccess.h> - -@@ -67,6 +68,7 @@ struct old_linux_dirent { - - struct readdir_callback { - struct old_linux_dirent __user * dirent; -+ struct file * file; - int result; - }; - -@@ -84,6 +86,10 @@ static int fillonedir(void * __buf, cons - buf->result = -EOVERFLOW; - return -EOVERFLOW; - } -+ -+ if (!gr_acl_handle_filldir(buf->file, name, namlen, ino)) -+ return 0; -+ - buf->result++; - dirent = buf->dirent; - if (!access_ok(VERIFY_WRITE, dirent, -@@ -116,6 +122,7 @@ SYSCALL_DEFINE3(old_readdir, unsigned in - - buf.result = 0; - buf.dirent = dirent; -+ buf.file = file; - - error = vfs_readdir(file, fillonedir, &buf); - if (buf.result) -@@ -142,6 +149,7 @@ struct linux_dirent { - struct getdents_callback { - struct linux_dirent __user * current_dir; - struct linux_dirent __user * previous; -+ struct file * file; - int count; - int error; - }; -@@ -162,6 +170,10 @@ static int filldir(void * __buf, const c - buf->error = -EOVERFLOW; - return -EOVERFLOW; - } -+ -+ if (!gr_acl_handle_filldir(buf->file, name, namlen, ino)) -+ return 0; -+ - dirent = buf->previous; - if (dirent) { - if (__put_user(offset, &dirent->d_off)) -@@ -209,6 +221,7 @@ SYSCALL_DEFINE3(getdents, unsigned int, - buf.previous = NULL; - buf.count = count; - buf.error = 0; -+ buf.file = file; - - error = vfs_readdir(file, filldir, &buf); - if (error >= 0) -@@ -228,6 +241,7 @@ out: - struct getdents_callback64 { - struct linux_dirent64 __user * current_dir; - struct linux_dirent64 __user * previous; -+ struct file *file; - int count; - int error; - }; -@@ -242,6 +256,10 @@ static int filldir64(void * __buf, const - buf->error = -EINVAL; /* only used if we fail.. */ - if (reclen > buf->count) - return -EINVAL; -+ -+ if (!gr_acl_handle_filldir(buf->file, name, namlen, ino)) -+ return 0; -+ - dirent = buf->previous; - if (dirent) { - if (__put_user(offset, &dirent->d_off)) -@@ -289,6 +307,7 @@ SYSCALL_DEFINE3(getdents64, unsigned int - - buf.current_dir = dirent; - buf.previous = NULL; -+ buf.file = file; - buf.count = count; - buf.error = 0; - -diff -urNp linux-2.6.28.8/fs/select.c linux-2.6.28.8/fs/select.c ---- linux-2.6.28.8/fs/select.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/fs/select.c 2009-02-21 09:37:49.000000000 -0500 -@@ -19,6 +19,7 @@ - #include <linux/module.h> - #include <linux/slab.h> - #include <linux/poll.h> -+#include <linux/security.h> - #include <linux/personality.h> /* for STICKY_TIMEOUTS */ - #include <linux/file.h> - #include <linux/fdtable.h> -@@ -733,6 +734,7 @@ int do_sys_poll(struct pollfd __user *uf - struct poll_list *walk = head; - unsigned long todo = nfds; - -+ gr_learn_resource(current, RLIMIT_NOFILE, nfds, 1); - if (nfds > current->signal->rlim[RLIMIT_NOFILE].rlim_cur) - return -EINVAL; - -diff -urNp linux-2.6.28.8/fs/smbfs/symlink.c linux-2.6.28.8/fs/smbfs/symlink.c ---- linux-2.6.28.8/fs/smbfs/symlink.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/fs/smbfs/symlink.c 2009-02-21 09:37:49.000000000 -0500 -@@ -55,7 +55,7 @@ static void *smb_follow_link(struct dent - - static void smb_put_link(struct dentry *dentry, struct nameidata *nd, void *p) - { -- char *s = nd_get_link(nd); -+ const char *s = nd_get_link(nd); - if (!IS_ERR(s)) - __putname(s); - } -diff -urNp linux-2.6.28.8/fs/sysfs/symlink.c linux-2.6.28.8/fs/sysfs/symlink.c ---- linux-2.6.28.8/fs/sysfs/symlink.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/fs/sysfs/symlink.c 2009-02-21 09:37:49.000000000 -0500 -@@ -200,7 +200,7 @@ static void *sysfs_follow_link(struct de - - static void sysfs_put_link(struct dentry *dentry, struct nameidata *nd, void *cookie) - { -- char *page = nd_get_link(nd); -+ const char *page = nd_get_link(nd); - if (!IS_ERR(page)) - free_page((unsigned long)page); - } -diff -urNp linux-2.6.28.8/fs/udf/balloc.c linux-2.6.28.8/fs/udf/balloc.c ---- linux-2.6.28.8/fs/udf/balloc.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/fs/udf/balloc.c 2009-02-21 09:37:49.000000000 -0500 -@@ -169,9 +169,7 @@ static void udf_bitmap_free_blocks(struc - unsigned long overflow; - - mutex_lock(&sbi->s_alloc_mutex); -- if (bloc.logicalBlockNum < 0 || -- (bloc.logicalBlockNum + count) > -- sbi->s_partmaps[bloc.partitionReferenceNum].s_partition_len) { -+ if (bloc.logicalBlockNum + count > sbi->s_partmaps[bloc.partitionReferenceNum].s_partition_len) { - udf_debug("%d < %d || %d + %d > %d\n", - bloc.logicalBlockNum, 0, bloc.logicalBlockNum, count, - sbi->s_partmaps[bloc.partitionReferenceNum]. -@@ -239,7 +237,7 @@ static int udf_bitmap_prealloc_blocks(st - - mutex_lock(&sbi->s_alloc_mutex); - part_len = sbi->s_partmaps[partition].s_partition_len; -- if (first_block < 0 || first_block >= part_len) -+ if (first_block >= part_len) - goto out; - - if (first_block + block_count > part_len) -@@ -300,7 +298,7 @@ static int udf_bitmap_new_block(struct s - mutex_lock(&sbi->s_alloc_mutex); - - repeat: -- if (goal < 0 || goal >= sbi->s_partmaps[partition].s_partition_len) -+ if (goal >= sbi->s_partmaps[partition].s_partition_len) - goal = 0; - - nr_groups = bitmap->s_nr_groups; -@@ -438,9 +436,7 @@ static void udf_table_free_blocks(struct - struct udf_inode_info *iinfo; - - mutex_lock(&sbi->s_alloc_mutex); -- if (bloc.logicalBlockNum < 0 || -- (bloc.logicalBlockNum + count) > -- sbi->s_partmaps[bloc.partitionReferenceNum].s_partition_len) { -+ if (bloc.logicalBlockNum + count > sbi->s_partmaps[bloc.partitionReferenceNum].s_partition_len) { - udf_debug("%d < %d || %d + %d > %d\n", - bloc.logicalBlockNum, 0, bloc.logicalBlockNum, count, - sbi->s_partmaps[bloc.partitionReferenceNum]. -@@ -671,8 +667,7 @@ static int udf_table_prealloc_blocks(str - int8_t etype = -1; - struct udf_inode_info *iinfo; - -- if (first_block < 0 || -- first_block >= sbi->s_partmaps[partition].s_partition_len) -+ if (first_block >= sbi->s_partmaps[partition].s_partition_len) - return 0; - - iinfo = UDF_I(table); -@@ -750,7 +745,7 @@ static int udf_table_new_block(struct su - return newblock; - - mutex_lock(&sbi->s_alloc_mutex); -- if (goal < 0 || goal >= sbi->s_partmaps[partition].s_partition_len) -+ if (goal >= sbi->s_partmaps[partition].s_partition_len) - goal = 0; - - /* We search for the closest matching block to goal. If we find -diff -urNp linux-2.6.28.8/fs/ufs/inode.c linux-2.6.28.8/fs/ufs/inode.c ---- linux-2.6.28.8/fs/ufs/inode.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/fs/ufs/inode.c 2009-02-21 09:37:49.000000000 -0500 -@@ -56,9 +56,7 @@ static int ufs_block_to_path(struct inod - - - UFSD("ptrs=uspi->s_apb = %d,double_blocks=%ld \n",ptrs,double_blocks); -- if (i_block < 0) { -- ufs_warning(inode->i_sb, "ufs_block_to_path", "block < 0"); -- } else if (i_block < direct_blocks) { -+ if (i_block < direct_blocks) { - offsets[n++] = i_block; - } else if ((i_block -= direct_blocks) < indirect_blocks) { - offsets[n++] = UFS_IND_BLOCK; -@@ -440,8 +438,6 @@ int ufs_getfrag_block(struct inode *inod - lock_kernel(); - - UFSD("ENTER, ino %lu, fragment %llu\n", inode->i_ino, (unsigned long long)fragment); -- if (fragment < 0) -- goto abort_negative; - if (fragment > - ((UFS_NDADDR + uspi->s_apb + uspi->s_2apb + uspi->s_3apb) - << uspi->s_fpbshift)) -@@ -504,10 +500,6 @@ abort: - unlock_kernel(); - return err; - --abort_negative: -- ufs_warning(sb, "ufs_get_block", "block < 0"); -- goto abort; -- - abort_too_big: - ufs_warning(sb, "ufs_get_block", "block > big"); - goto abort; -diff -urNp linux-2.6.28.8/fs/utimes.c linux-2.6.28.8/fs/utimes.c ---- linux-2.6.28.8/fs/utimes.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/fs/utimes.c 2009-02-21 09:37:49.000000000 -0500 -@@ -1,6 +1,7 @@ - #include <linux/compiler.h> - #include <linux/file.h> - #include <linux/fs.h> -+#include <linux/security.h> - #include <linux/linkage.h> - #include <linux/mount.h> - #include <linux/namei.h> -@@ -101,6 +102,12 @@ static int utimes_common(struct path *pa - goto mnt_drop_write_and_out; - } - } -+ -+ if (!gr_acl_handle_utime(path->dentry, path->mnt)) { -+ error = -EACCES; -+ goto mnt_drop_write_and_out; -+ } -+ - mutex_lock(&inode->i_mutex); - error = notify_change(path->dentry, &newattrs); - mutex_unlock(&inode->i_mutex); -diff -urNp linux-2.6.28.8/fs/xfs/linux-2.6/xfs_iops.c linux-2.6.28.8/fs/xfs/linux-2.6/xfs_iops.c ---- linux-2.6.28.8/fs/xfs/linux-2.6/xfs_iops.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/fs/xfs/linux-2.6/xfs_iops.c 2009-02-21 09:37:49.000000000 -0500 -@@ -500,7 +500,7 @@ xfs_vn_put_link( - struct nameidata *nd, - void *p) - { -- char *s = nd_get_link(nd); -+ const char *s = nd_get_link(nd); - - if (!IS_ERR(s)) - kfree(s); -diff -urNp linux-2.6.28.8/fs/xfs/xfs_bmap.c linux-2.6.28.8/fs/xfs/xfs_bmap.c ---- linux-2.6.28.8/fs/xfs/xfs_bmap.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/fs/xfs/xfs_bmap.c 2009-02-21 09:37:49.000000000 -0500 -@@ -360,7 +360,7 @@ xfs_bmap_validate_ret( - int nmap, - int ret_nmap); - #else --#define xfs_bmap_validate_ret(bno,len,flags,mval,onmap,nmap) -+#define xfs_bmap_validate_ret(bno,len,flags,mval,onmap,nmap) do {} while (0) - #endif /* DEBUG */ - - #if defined(XFS_RW_TRACE) -diff -urNp linux-2.6.28.8/grsecurity/gracl_alloc.c linux-2.6.28.8/grsecurity/gracl_alloc.c ---- linux-2.6.28.8/grsecurity/gracl_alloc.c 1969-12-31 19:00:00.000000000 -0500 -+++ linux-2.6.28.8/grsecurity/gracl_alloc.c 2009-02-21 09:37:49.000000000 -0500 -@@ -0,0 +1,91 @@ -+#include <linux/kernel.h> -+#include <linux/mm.h> -+#include <linux/slab.h> -+#include <linux/vmalloc.h> -+#include <linux/gracl.h> -+#include <linux/grsecurity.h> -+ -+static unsigned long alloc_stack_next = 1; -+static unsigned long alloc_stack_size = 1; -+static void **alloc_stack; -+ -+static __inline__ int -+alloc_pop(void) -+{ -+ if (alloc_stack_next == 1) -+ return 0; -+ -+ kfree(alloc_stack[alloc_stack_next - 2]); -+ -+ alloc_stack_next--; -+ -+ return 1; -+} -+ -+static __inline__ void -+alloc_push(void *buf) -+{ -+ if (alloc_stack_next >= alloc_stack_size) -+ BUG(); -+ -+ alloc_stack[alloc_stack_next - 1] = buf; -+ -+ alloc_stack_next++; -+ -+ return; -+} -+ -+void * -+acl_alloc(unsigned long len) -+{ -+ void *ret; -+ -+ if (len > PAGE_SIZE) -+ BUG(); -+ -+ ret = kmalloc(len, GFP_KERNEL); -+ -+ if (ret) -+ alloc_push(ret); -+ -+ return ret; -+} -+ -+void -+acl_free_all(void) -+{ -+ if (gr_acl_is_enabled() || !alloc_stack) -+ return; -+ -+ while (alloc_pop()) ; -+ -+ if (alloc_stack) { -+ if ((alloc_stack_size * sizeof (void *)) <= PAGE_SIZE) -+ kfree(alloc_stack); -+ else -+ vfree(alloc_stack); -+ } -+ -+ alloc_stack = NULL; -+ alloc_stack_size = 1; -+ alloc_stack_next = 1; -+ -+ return; -+} -+ -+int -+acl_alloc_stack_init(unsigned long size) -+{ -+ if ((size * sizeof (void *)) <= PAGE_SIZE) -+ alloc_stack = -+ (void **) kmalloc(size * sizeof (void *), GFP_KERNEL); -+ else -+ alloc_stack = (void **) vmalloc(size * sizeof (void *)); -+ -+ alloc_stack_size = size; -+ -+ if (!alloc_stack) -+ return 0; -+ else -+ return 1; -+} -diff -urNp linux-2.6.28.8/grsecurity/gracl.c linux-2.6.28.8/grsecurity/gracl.c ---- linux-2.6.28.8/grsecurity/gracl.c 1969-12-31 19:00:00.000000000 -0500 -+++ linux-2.6.28.8/grsecurity/gracl.c 2009-02-21 09:37:49.000000000 -0500 -@@ -0,0 +1,3722 @@ -+#include <linux/kernel.h> -+#include <linux/module.h> -+#include <linux/sched.h> -+#include <linux/mm.h> -+#include <linux/file.h> -+#include <linux/fs.h> -+#include <linux/namei.h> -+#include <linux/mount.h> -+#include <linux/tty.h> -+#include <linux/proc_fs.h> -+#include <linux/smp_lock.h> -+#include <linux/slab.h> -+#include <linux/vmalloc.h> -+#include <linux/types.h> -+#include <linux/sysctl.h> -+#include <linux/netdevice.h> -+#include <linux/ptrace.h> -+#include <linux/gracl.h> -+#include <linux/gralloc.h> -+#include <linux/grsecurity.h> -+#include <linux/grinternal.h> -+#include <linux/pid_namespace.h> -+#include <linux/fdtable.h> -+#include <linux/percpu.h> -+ -+#include <asm/uaccess.h> -+#include <asm/errno.h> -+#include <asm/mman.h> -+ -+static struct acl_role_db acl_role_set; -+static struct name_db name_set; -+static struct inodev_db inodev_set; -+ -+/* for keeping track of userspace pointers used for subjects, so we -+ can share references in the kernel as well -+*/ -+ -+static struct dentry *real_root; -+static struct vfsmount *real_root_mnt; -+ -+static struct acl_subj_map_db subj_map_set; -+ -+static struct acl_role_label *default_role; -+ -+static u16 acl_sp_role_value; -+ -+extern char *gr_shared_page[4]; -+static DECLARE_MUTEX(gr_dev_sem); -+DEFINE_RWLOCK(gr_inode_lock); -+ -+struct gr_arg *gr_usermode; -+ -+static unsigned int gr_status = GR_STATUS_INIT; -+ -+extern int chkpw(struct gr_arg *entry, unsigned char *salt, unsigned char *sum); -+extern void gr_clear_learn_entries(void); -+ -+#ifdef CONFIG_GRKERNSEC_RESLOG -+extern void gr_log_resource(const struct task_struct *task, -+ const int res, const unsigned long wanted, const int gt); -+#endif -+ -+unsigned char *gr_system_salt; -+unsigned char *gr_system_sum; -+ -+static struct sprole_pw **acl_special_roles = NULL; -+static __u16 num_sprole_pws = 0; -+ -+static struct acl_role_label *kernel_role = NULL; -+ -+static unsigned int gr_auth_attempts = 0; -+static unsigned long gr_auth_expires = 0UL; -+ -+extern struct vfsmount *sock_mnt; -+extern struct vfsmount *pipe_mnt; -+extern struct vfsmount *shm_mnt; -+static struct acl_object_label *fakefs_obj; -+ -+extern int gr_init_uidset(void); -+extern void gr_free_uidset(void); -+extern void gr_remove_uid(uid_t uid); -+extern int gr_find_uid(uid_t uid); -+ -+__inline__ int -+gr_acl_is_enabled(void) -+{ -+ return (gr_status & GR_READY); -+} -+ -+char gr_roletype_to_char(void) -+{ -+ switch (current->role->roletype & -+ (GR_ROLE_DEFAULT | GR_ROLE_USER | GR_ROLE_GROUP | -+ GR_ROLE_SPECIAL)) { -+ case GR_ROLE_DEFAULT: -+ return 'D'; -+ case GR_ROLE_USER: -+ return 'U'; -+ case GR_ROLE_GROUP: -+ return 'G'; -+ case GR_ROLE_SPECIAL: -+ return 'S'; -+ } -+ -+ return 'X'; -+} -+ -+__inline__ int -+gr_acl_tpe_check(void) -+{ -+ if (unlikely(!(gr_status & GR_READY))) -+ return 0; -+ if (current->role->roletype & GR_ROLE_TPE) -+ return 1; -+ else -+ return 0; -+} -+ -+int -+gr_handle_rawio(const struct inode *inode) -+{ -+#ifdef CONFIG_GRKERNSEC_CHROOT_CAPS -+ if (inode && S_ISBLK(inode->i_mode) && -+ grsec_enable_chroot_caps && proc_is_chrooted(current) && -+ !capable(CAP_SYS_RAWIO)) -+ return 1; -+#endif -+ return 0; -+} -+ -+static int -+gr_streq(const char *a, const char *b, const unsigned int lena, const unsigned int lenb) -+{ -+ int i; -+ unsigned long *l1; -+ unsigned long *l2; -+ unsigned char *c1; -+ unsigned char *c2; -+ int num_longs; -+ -+ if (likely(lena != lenb)) -+ return 0; -+ -+ l1 = (unsigned long *)a; -+ l2 = (unsigned long *)b; -+ -+ num_longs = lena / sizeof(unsigned long); -+ -+ for (i = num_longs; i--; l1++, l2++) { -+ if (unlikely(*l1 != *l2)) -+ return 0; -+ } -+ -+ c1 = (unsigned char *) l1; -+ c2 = (unsigned char *) l2; -+ -+ i = lena - (num_longs * sizeof(unsigned long)); -+ -+ for (; i--; c1++, c2++) { -+ if (unlikely(*c1 != *c2)) -+ return 0; -+ } -+ -+ return 1; -+} -+ -+static char * __our_d_path(struct dentry *dentry, struct vfsmount *vfsmnt, -+ struct dentry *root, struct vfsmount *rootmnt, -+ char *buffer, int buflen) -+{ -+ char * end = buffer+buflen; -+ char * retval; -+ int namelen; -+ -+ *--end = '\0'; -+ buflen--; -+ -+ if (buflen < 1) -+ goto Elong; -+ /* Get '/' right */ -+ retval = end-1; -+ *retval = '/'; -+ -+ for (;;) { -+ struct dentry * parent; -+ -+ if (dentry == root && vfsmnt == rootmnt) -+ break; -+ if (dentry == vfsmnt->mnt_root || IS_ROOT(dentry)) { -+ /* Global root? */ -+ spin_lock(&vfsmount_lock); -+ if (vfsmnt->mnt_parent == vfsmnt) { -+ spin_unlock(&vfsmount_lock); -+ goto global_root; -+ } -+ dentry = vfsmnt->mnt_mountpoint; -+ vfsmnt = vfsmnt->mnt_parent; -+ spin_unlock(&vfsmount_lock); -+ continue; -+ } -+ parent = dentry->d_parent; -+ prefetch(parent); -+ namelen = dentry->d_name.len; -+ buflen -= namelen + 1; -+ if (buflen < 0) -+ goto Elong; -+ end -= namelen; -+ memcpy(end, dentry->d_name.name, namelen); -+ *--end = '/'; -+ retval = end; -+ dentry = parent; -+ } -+ -+ return retval; -+ -+global_root: -+ namelen = dentry->d_name.len; -+ buflen -= namelen; -+ if (buflen < 0) -+ goto Elong; -+ retval -= namelen-1; /* hit the slash */ -+ memcpy(retval, dentry->d_name.name, namelen); -+ return retval; -+Elong: -+ return ERR_PTR(-ENAMETOOLONG); -+} -+ -+static char * -+gen_full_path(struct dentry *dentry, struct vfsmount *vfsmnt, -+ struct dentry *root, struct vfsmount *rootmnt, char *buf, int buflen) -+{ -+ char *retval; -+ -+ retval = __our_d_path(dentry, vfsmnt, root, rootmnt, buf, buflen); -+ if (unlikely(IS_ERR(retval))) -+ retval = strcpy(buf, "<path too long>"); -+ else if (unlikely(retval[1] == '/' && retval[2] == '\0')) -+ retval[1] = '\0'; -+ -+ return retval; -+} -+ -+static char * -+__d_real_path(const struct dentry *dentry, const struct vfsmount *vfsmnt, -+ char *buf, int buflen) -+{ -+ char *res; -+ -+ /* we can use real_root, real_root_mnt, because this is only called -+ by the RBAC system */ -+ res = gen_full_path((struct dentry *)dentry, (struct vfsmount *)vfsmnt, real_root, real_root_mnt, buf, buflen); -+ -+ return res; -+} -+ -+static char * -+d_real_path(const struct dentry *dentry, const struct vfsmount *vfsmnt, -+ char *buf, int buflen) -+{ -+ char *res; -+ struct dentry *root; -+ struct vfsmount *rootmnt; -+ struct task_struct *reaper = current->nsproxy->pid_ns->child_reaper; -+ -+ /* we can't use real_root, real_root_mnt, because they belong only to the RBAC system */ -+ read_lock(&reaper->fs->lock); -+ root = dget(reaper->fs->root.dentry); -+ rootmnt = mntget(reaper->fs->root.mnt); -+ read_unlock(&reaper->fs->lock); -+ -+ spin_lock(&dcache_lock); -+ res = gen_full_path((struct dentry *)dentry, (struct vfsmount *)vfsmnt, root, rootmnt, buf, buflen); -+ spin_unlock(&dcache_lock); -+ -+ dput(root); -+ mntput(rootmnt); -+ return res; -+} -+ -+static char * -+gr_to_filename_rbac(const struct dentry *dentry, const struct vfsmount *mnt) -+{ -+ char *ret; -+ spin_lock(&dcache_lock); -+ ret = __d_real_path(dentry, mnt, per_cpu_ptr(gr_shared_page[0],smp_processor_id()), -+ PAGE_SIZE); -+ spin_unlock(&dcache_lock); -+ return ret; -+} -+ -+char * -+gr_to_filename_nolock(const struct dentry *dentry, const struct vfsmount *mnt) -+{ -+ return __d_real_path(dentry, mnt, per_cpu_ptr(gr_shared_page[0],smp_processor_id()), -+ PAGE_SIZE); -+} -+ -+char * -+gr_to_filename(const struct dentry *dentry, const struct vfsmount *mnt) -+{ -+ return d_real_path(dentry, mnt, per_cpu_ptr(gr_shared_page[0], smp_processor_id()), -+ PAGE_SIZE); -+} -+ -+char * -+gr_to_filename1(const struct dentry *dentry, const struct vfsmount *mnt) -+{ -+ return d_real_path(dentry, mnt, per_cpu_ptr(gr_shared_page[1], smp_processor_id()), -+ PAGE_SIZE); -+} -+ -+char * -+gr_to_filename2(const struct dentry *dentry, const struct vfsmount *mnt) -+{ -+ return d_real_path(dentry, mnt, per_cpu_ptr(gr_shared_page[2], smp_processor_id()), -+ PAGE_SIZE); -+} -+ -+char * -+gr_to_filename3(const struct dentry *dentry, const struct vfsmount *mnt) -+{ -+ return d_real_path(dentry, mnt, per_cpu_ptr(gr_shared_page[3], smp_processor_id()), -+ PAGE_SIZE); -+} -+ -+__inline__ __u32 -+to_gr_audit(const __u32 reqmode) -+{ -+ /* masks off auditable permission flags, then shifts them to create -+ auditing flags, and adds the special case of append auditing if -+ we're requesting write */ -+ return (((reqmode & ~GR_AUDITS) << 10) | ((reqmode & GR_WRITE) ? GR_AUDIT_APPEND : 0)); -+} -+ -+struct acl_subject_label * -+lookup_subject_map(const struct acl_subject_label *userp) -+{ -+ unsigned int index = shash(userp, subj_map_set.s_size); -+ struct subject_map *match; -+ -+ match = subj_map_set.s_hash[index]; -+ -+ while (match && match->user != userp) -+ match = match->next; -+ -+ if (match != NULL) -+ return match->kernel; -+ else -+ return NULL; -+} -+ -+static void -+insert_subj_map_entry(struct subject_map *subjmap) -+{ -+ unsigned int index = shash(subjmap->user, subj_map_set.s_size); -+ struct subject_map **curr; -+ -+ subjmap->prev = NULL; -+ -+ curr = &subj_map_set.s_hash[index]; -+ if (*curr != NULL) -+ (*curr)->prev = subjmap; -+ -+ subjmap->next = *curr; -+ *curr = subjmap; -+ -+ return; -+} -+ -+static struct acl_role_label * -+lookup_acl_role_label(const struct task_struct *task, const uid_t uid, -+ const gid_t gid) -+{ -+ unsigned int index = rhash(uid, GR_ROLE_USER, acl_role_set.r_size); -+ struct acl_role_label *match; -+ struct role_allowed_ip *ipp; -+ unsigned int x; -+ -+ match = acl_role_set.r_hash[index]; -+ -+ while (match) { -+ if ((match->roletype & (GR_ROLE_DOMAIN | GR_ROLE_USER)) == (GR_ROLE_DOMAIN | GR_ROLE_USER)) { -+ for (x = 0; x < match->domain_child_num; x++) { -+ if (match->domain_children[x] == uid) -+ goto found; -+ } -+ } else if (match->uidgid == uid && match->roletype & GR_ROLE_USER) -+ break; -+ match = match->next; -+ } -+found: -+ if (match == NULL) { -+ try_group: -+ index = rhash(gid, GR_ROLE_GROUP, acl_role_set.r_size); -+ match = acl_role_set.r_hash[index]; -+ -+ while (match) { -+ if ((match->roletype & (GR_ROLE_DOMAIN | GR_ROLE_GROUP)) == (GR_ROLE_DOMAIN | GR_ROLE_GROUP)) { -+ for (x = 0; x < match->domain_child_num; x++) { -+ if (match->domain_children[x] == gid) -+ goto found2; -+ } -+ } else if (match->uidgid == gid && match->roletype & GR_ROLE_GROUP) -+ break; -+ match = match->next; -+ } -+found2: -+ if (match == NULL) -+ match = default_role; -+ if (match->allowed_ips == NULL) -+ return match; -+ else { -+ for (ipp = match->allowed_ips; ipp; ipp = ipp->next) { -+ if (likely -+ ((ntohl(task->signal->curr_ip) & ipp->netmask) == -+ (ntohl(ipp->addr) & ipp->netmask))) -+ return match; -+ } -+ match = default_role; -+ } -+ } else if (match->allowed_ips == NULL) { -+ return match; -+ } else { -+ for (ipp = match->allowed_ips; ipp; ipp = ipp->next) { -+ if (likely -+ ((ntohl(task->signal->curr_ip) & ipp->netmask) == -+ (ntohl(ipp->addr) & ipp->netmask))) -+ return match; -+ } -+ goto try_group; -+ } -+ -+ return match; -+} -+ -+struct acl_subject_label * -+lookup_acl_subj_label(const ino_t ino, const dev_t dev, -+ const struct acl_role_label *role) -+{ -+ unsigned int index = fhash(ino, dev, role->subj_hash_size); -+ struct acl_subject_label *match; -+ -+ match = role->subj_hash[index]; -+ -+ while (match && (match->inode != ino || match->device != dev || -+ (match->mode & GR_DELETED))) { -+ match = match->next; -+ } -+ -+ if (match && !(match->mode & GR_DELETED)) -+ return match; -+ else -+ return NULL; -+} -+ -+static struct acl_object_label * -+lookup_acl_obj_label(const ino_t ino, const dev_t dev, -+ const struct acl_subject_label *subj) -+{ -+ unsigned int index = fhash(ino, dev, subj->obj_hash_size); -+ struct acl_object_label *match; -+ -+ match = subj->obj_hash[index]; -+ -+ while (match && (match->inode != ino || match->device != dev || -+ (match->mode & GR_DELETED))) { -+ match = match->next; -+ } -+ -+ if (match && !(match->mode & GR_DELETED)) -+ return match; -+ else -+ return NULL; -+} -+ -+static struct acl_object_label * -+lookup_acl_obj_label_create(const ino_t ino, const dev_t dev, -+ const struct acl_subject_label *subj) -+{ -+ unsigned int index = fhash(ino, dev, subj->obj_hash_size); -+ struct acl_object_label *match; -+ -+ match = subj->obj_hash[index]; -+ -+ while (match && (match->inode != ino || match->device != dev || -+ !(match->mode & GR_DELETED))) { -+ match = match->next; -+ } -+ -+ if (match && (match->mode & GR_DELETED)) -+ return match; -+ -+ match = subj->obj_hash[index]; -+ -+ while (match && (match->inode != ino || match->device != dev || -+ (match->mode & GR_DELETED))) { -+ match = match->next; -+ } -+ -+ if (match && !(match->mode & GR_DELETED)) -+ return match; -+ else -+ return NULL; -+} -+ -+static struct name_entry * -+lookup_name_entry(const char *name) -+{ -+ unsigned int len = strlen(name); -+ unsigned int key = full_name_hash(name, len); -+ unsigned int index = key % name_set.n_size; -+ struct name_entry *match; -+ -+ match = name_set.n_hash[index]; -+ -+ while (match && (match->key != key || !gr_streq(match->name, name, match->len, len))) -+ match = match->next; -+ -+ return match; -+} -+ -+static struct name_entry * -+lookup_name_entry_create(const char *name) -+{ -+ unsigned int len = strlen(name); -+ unsigned int key = full_name_hash(name, len); -+ unsigned int index = key % name_set.n_size; -+ struct name_entry *match; -+ -+ match = name_set.n_hash[index]; -+ -+ while (match && (match->key != key || !gr_streq(match->name, name, match->len, len) || -+ !match->deleted)) -+ match = match->next; -+ -+ if (match && match->deleted) -+ return match; -+ -+ match = name_set.n_hash[index]; -+ -+ while (match && (match->key != key || !gr_streq(match->name, name, match->len, len) || -+ match->deleted)) -+ match = match->next; -+ -+ if (match && !match->deleted) -+ return match; -+ else -+ return NULL; -+} -+ -+static struct inodev_entry * -+lookup_inodev_entry(const ino_t ino, const dev_t dev) -+{ -+ unsigned int index = fhash(ino, dev, inodev_set.i_size); -+ struct inodev_entry *match; -+ -+ match = inodev_set.i_hash[index]; -+ -+ while (match && (match->nentry->inode != ino || match->nentry->device != dev)) -+ match = match->next; -+ -+ return match; -+} -+ -+static void -+insert_inodev_entry(struct inodev_entry *entry) -+{ -+ unsigned int index = fhash(entry->nentry->inode, entry->nentry->device, -+ inodev_set.i_size); -+ struct inodev_entry **curr; -+ -+ entry->prev = NULL; -+ -+ curr = &inodev_set.i_hash[index]; -+ if (*curr != NULL) -+ (*curr)->prev = entry; -+ -+ entry->next = *curr; -+ *curr = entry; -+ -+ return; -+} -+ -+static void -+__insert_acl_role_label(struct acl_role_label *role, uid_t uidgid) -+{ -+ unsigned int index = -+ rhash(uidgid, role->roletype & (GR_ROLE_USER | GR_ROLE_GROUP), acl_role_set.r_size); -+ struct acl_role_label **curr; -+ -+ role->prev = NULL; -+ -+ curr = &acl_role_set.r_hash[index]; -+ if (*curr != NULL) -+ (*curr)->prev = role; -+ -+ role->next = *curr; -+ *curr = role; -+ -+ return; -+} -+ -+static void -+insert_acl_role_label(struct acl_role_label *role) -+{ -+ int i; -+ -+ if (role->roletype & GR_ROLE_DOMAIN) { -+ for (i = 0; i < role->domain_child_num; i++) -+ __insert_acl_role_label(role, role->domain_children[i]); -+ } else -+ __insert_acl_role_label(role, role->uidgid); -+} -+ -+static int -+insert_name_entry(char *name, const ino_t inode, const dev_t device, __u8 deleted) -+{ -+ struct name_entry **curr, *nentry; -+ struct inodev_entry *ientry; -+ unsigned int len = strlen(name); -+ unsigned int key = full_name_hash(name, len); -+ unsigned int index = key % name_set.n_size; -+ -+ curr = &name_set.n_hash[index]; -+ -+ while (*curr && ((*curr)->key != key || !gr_streq((*curr)->name, name, (*curr)->len, len))) -+ curr = &((*curr)->next); -+ -+ if (*curr != NULL) -+ return 1; -+ -+ nentry = acl_alloc(sizeof (struct name_entry)); -+ if (nentry == NULL) -+ return 0; -+ ientry = acl_alloc(sizeof (struct inodev_entry)); -+ if (ientry == NULL) -+ return 0; -+ ientry->nentry = nentry; -+ -+ nentry->key = key; -+ nentry->name = name; -+ nentry->inode = inode; -+ nentry->device = device; -+ nentry->len = len; -+ nentry->deleted = deleted; -+ -+ nentry->prev = NULL; -+ curr = &name_set.n_hash[index]; -+ if (*curr != NULL) -+ (*curr)->prev = nentry; -+ nentry->next = *curr; -+ *curr = nentry; -+ -+ /* insert us into the table searchable by inode/dev */ -+ insert_inodev_entry(ientry); -+ -+ return 1; -+} -+ -+static void -+insert_acl_obj_label(struct acl_object_label *obj, -+ struct acl_subject_label *subj) -+{ -+ unsigned int index = -+ fhash(obj->inode, obj->device, subj->obj_hash_size); -+ struct acl_object_label **curr; -+ -+ -+ obj->prev = NULL; -+ -+ curr = &subj->obj_hash[index]; -+ if (*curr != NULL) -+ (*curr)->prev = obj; -+ -+ obj->next = *curr; -+ *curr = obj; -+ -+ return; -+} -+ -+static void -+insert_acl_subj_label(struct acl_subject_label *obj, -+ struct acl_role_label *role) -+{ -+ unsigned int index = fhash(obj->inode, obj->device, role->subj_hash_size); -+ struct acl_subject_label **curr; -+ -+ obj->prev = NULL; -+ -+ curr = &role->subj_hash[index]; -+ if (*curr != NULL) -+ (*curr)->prev = obj; -+ -+ obj->next = *curr; -+ *curr = obj; -+ -+ return; -+} -+ -+/* allocating chained hash tables, so optimal size is where lambda ~ 1 */ -+ -+static void * -+create_table(__u32 * len, int elementsize) -+{ -+ unsigned int table_sizes[] = { -+ 7, 13, 31, 61, 127, 251, 509, 1021, 2039, 4093, 8191, 16381, -+ 32749, 65521, 131071, 262139, 524287, 1048573, 2097143, -+ 4194301, 8388593, 16777213, 33554393, 67108859, 134217689, -+ 268435399, 536870909, 1073741789, 2147483647 -+ }; -+ void *newtable = NULL; -+ unsigned int pwr = 0; -+ -+ while ((pwr < ((sizeof (table_sizes) / sizeof (table_sizes[0])) - 1)) && -+ table_sizes[pwr] <= *len) -+ pwr++; -+ -+ if (table_sizes[pwr] <= *len) -+ return newtable; -+ -+ if ((table_sizes[pwr] * elementsize) <= PAGE_SIZE) -+ newtable = -+ kmalloc(table_sizes[pwr] * elementsize, GFP_KERNEL); -+ else -+ newtable = vmalloc(table_sizes[pwr] * elementsize); -+ -+ *len = table_sizes[pwr]; -+ -+ return newtable; -+} -+ -+static int -+init_variables(const struct gr_arg *arg) -+{ -+ struct task_struct *reaper = current->nsproxy->pid_ns->child_reaper; -+ unsigned int stacksize; -+ -+ subj_map_set.s_size = arg->role_db.num_subjects; -+ acl_role_set.r_size = arg->role_db.num_roles + arg->role_db.num_domain_children; -+ name_set.n_size = arg->role_db.num_objects; -+ inodev_set.i_size = arg->role_db.num_objects; -+ -+ if (!subj_map_set.s_size || !acl_role_set.r_size || -+ !name_set.n_size || !inodev_set.i_size) -+ return 1; -+ -+ if (!gr_init_uidset()) -+ return 1; -+ -+ /* set up the stack that holds allocation info */ -+ -+ stacksize = arg->role_db.num_pointers + 5; -+ -+ if (!acl_alloc_stack_init(stacksize)) -+ return 1; -+ -+ /* grab reference for the real root dentry and vfsmount */ -+ read_lock(&reaper->fs->lock); -+ real_root_mnt = mntget(reaper->fs->root.mnt); -+ real_root = dget(reaper->fs->root.dentry); -+ read_unlock(&reaper->fs->lock); -+ -+ fakefs_obj = acl_alloc(sizeof(struct acl_object_label)); -+ if (fakefs_obj == NULL) -+ return 1; -+ fakefs_obj->mode = GR_FIND | GR_READ | GR_WRITE | GR_EXEC; -+ -+ subj_map_set.s_hash = -+ (struct subject_map **) create_table(&subj_map_set.s_size, sizeof(void *)); -+ acl_role_set.r_hash = -+ (struct acl_role_label **) create_table(&acl_role_set.r_size, sizeof(void *)); -+ name_set.n_hash = (struct name_entry **) create_table(&name_set.n_size, sizeof(void *)); -+ inodev_set.i_hash = -+ (struct inodev_entry **) create_table(&inodev_set.i_size, sizeof(void *)); -+ -+ if (!subj_map_set.s_hash || !acl_role_set.r_hash || -+ !name_set.n_hash || !inodev_set.i_hash) -+ return 1; -+ -+ memset(subj_map_set.s_hash, 0, -+ sizeof(struct subject_map *) * subj_map_set.s_size); -+ memset(acl_role_set.r_hash, 0, -+ sizeof (struct acl_role_label *) * acl_role_set.r_size); -+ memset(name_set.n_hash, 0, -+ sizeof (struct name_entry *) * name_set.n_size); -+ memset(inodev_set.i_hash, 0, -+ sizeof (struct inodev_entry *) * inodev_set.i_size); -+ -+ return 0; -+} -+ -+/* free information not needed after startup -+ currently contains user->kernel pointer mappings for subjects -+*/ -+ -+static void -+free_init_variables(void) -+{ -+ __u32 i; -+ -+ if (subj_map_set.s_hash) { -+ for (i = 0; i < subj_map_set.s_size; i++) { -+ if (subj_map_set.s_hash[i]) { -+ kfree(subj_map_set.s_hash[i]); -+ subj_map_set.s_hash[i] = NULL; -+ } -+ } -+ -+ if ((subj_map_set.s_size * sizeof (struct subject_map *)) <= -+ PAGE_SIZE) -+ kfree(subj_map_set.s_hash); -+ else -+ vfree(subj_map_set.s_hash); -+ } -+ -+ return; -+} -+ -+static void -+free_variables(void) -+{ -+ struct acl_subject_label *s; -+ struct acl_role_label *r; -+ struct task_struct *task, *task2; -+ unsigned int i, x; -+ -+ gr_clear_learn_entries(); -+ -+ read_lock(&tasklist_lock); -+ do_each_thread(task2, task) { -+ task->acl_sp_role = 0; -+ task->acl_role_id = 0; -+ task->acl = NULL; -+ task->role = NULL; -+ } while_each_thread(task2, task); -+ read_unlock(&tasklist_lock); -+ -+ /* release the reference to the real root dentry and vfsmount */ -+ if (real_root) -+ dput(real_root); -+ real_root = NULL; -+ if (real_root_mnt) -+ mntput(real_root_mnt); -+ real_root_mnt = NULL; -+ -+ /* free all object hash tables */ -+ -+ FOR_EACH_ROLE_START(r, i) -+ if (r->subj_hash == NULL) -+ break; -+ FOR_EACH_SUBJECT_START(r, s, x) -+ if (s->obj_hash == NULL) -+ break; -+ if ((s->obj_hash_size * sizeof (struct acl_object_label *)) <= PAGE_SIZE) -+ kfree(s->obj_hash); -+ else -+ vfree(s->obj_hash); -+ FOR_EACH_SUBJECT_END(s, x) -+ FOR_EACH_NESTED_SUBJECT_START(r, s) -+ if (s->obj_hash == NULL) -+ break; -+ if ((s->obj_hash_size * sizeof (struct acl_object_label *)) <= PAGE_SIZE) -+ kfree(s->obj_hash); -+ else -+ vfree(s->obj_hash); -+ FOR_EACH_NESTED_SUBJECT_END(s) -+ if ((r->subj_hash_size * sizeof (struct acl_subject_label *)) <= PAGE_SIZE) -+ kfree(r->subj_hash); -+ else -+ vfree(r->subj_hash); -+ r->subj_hash = NULL; -+ FOR_EACH_ROLE_END(r,i) -+ -+ acl_free_all(); -+ -+ if (acl_role_set.r_hash) { -+ if ((acl_role_set.r_size * sizeof (struct acl_role_label *)) <= -+ PAGE_SIZE) -+ kfree(acl_role_set.r_hash); -+ else -+ vfree(acl_role_set.r_hash); -+ } -+ if (name_set.n_hash) { -+ if ((name_set.n_size * sizeof (struct name_entry *)) <= -+ PAGE_SIZE) -+ kfree(name_set.n_hash); -+ else -+ vfree(name_set.n_hash); -+ } -+ -+ if (inodev_set.i_hash) { -+ if ((inodev_set.i_size * sizeof (struct inodev_entry *)) <= -+ PAGE_SIZE) -+ kfree(inodev_set.i_hash); -+ else -+ vfree(inodev_set.i_hash); -+ } -+ -+ gr_free_uidset(); -+ -+ memset(&name_set, 0, sizeof (struct name_db)); -+ memset(&inodev_set, 0, sizeof (struct inodev_db)); -+ memset(&acl_role_set, 0, sizeof (struct acl_role_db)); -+ memset(&subj_map_set, 0, sizeof (struct acl_subj_map_db)); -+ -+ default_role = NULL; -+ -+ return; -+} -+ -+static __u32 -+count_user_objs(struct acl_object_label *userp) -+{ -+ struct acl_object_label o_tmp; -+ __u32 num = 0; -+ -+ while (userp) { -+ if (copy_from_user(&o_tmp, userp, -+ sizeof (struct acl_object_label))) -+ break; -+ -+ userp = o_tmp.prev; -+ num++; -+ } -+ -+ return num; -+} -+ -+static struct acl_subject_label * -+do_copy_user_subj(struct acl_subject_label *userp, struct acl_role_label *role); -+ -+static int -+copy_user_glob(struct acl_object_label *obj) -+{ -+ struct acl_object_label *g_tmp, **guser; -+ unsigned int len; -+ char *tmp; -+ -+ if (obj->globbed == NULL) -+ return 0; -+ -+ guser = &obj->globbed; -+ while (*guser) { -+ g_tmp = (struct acl_object_label *) -+ acl_alloc(sizeof (struct acl_object_label)); -+ if (g_tmp == NULL) -+ return -ENOMEM; -+ -+ if (copy_from_user(g_tmp, *guser, -+ sizeof (struct acl_object_label))) -+ return -EFAULT; -+ -+ len = strnlen_user(g_tmp->filename, PATH_MAX); -+ -+ if (!len || len >= PATH_MAX) -+ return -EINVAL; -+ -+ if ((tmp = (char *) acl_alloc(len)) == NULL) -+ return -ENOMEM; -+ -+ if (copy_from_user(tmp, g_tmp->filename, len)) -+ return -EFAULT; -+ -+ g_tmp->filename = tmp; -+ -+ *guser = g_tmp; -+ guser = &(g_tmp->next); -+ } -+ -+ return 0; -+} -+ -+static int -+copy_user_objs(struct acl_object_label *userp, struct acl_subject_label *subj, -+ struct acl_role_label *role) -+{ -+ struct acl_object_label *o_tmp; -+ unsigned int len; -+ int ret; -+ char *tmp; -+ -+ while (userp) { -+ if ((o_tmp = (struct acl_object_label *) -+ acl_alloc(sizeof (struct acl_object_label))) == NULL) -+ return -ENOMEM; -+ -+ if (copy_from_user(o_tmp, userp, -+ sizeof (struct acl_object_label))) -+ return -EFAULT; -+ -+ userp = o_tmp->prev; -+ -+ len = strnlen_user(o_tmp->filename, PATH_MAX); -+ -+ if (!len || len >= PATH_MAX) -+ return -EINVAL; -+ -+ if ((tmp = (char *) acl_alloc(len)) == NULL) -+ return -ENOMEM; -+ -+ if (copy_from_user(tmp, o_tmp->filename, len)) -+ return -EFAULT; -+ -+ o_tmp->filename = tmp; -+ -+ insert_acl_obj_label(o_tmp, subj); -+ if (!insert_name_entry(o_tmp->filename, o_tmp->inode, -+ o_tmp->device, (o_tmp->mode & GR_DELETED) ? 1 : 0)) -+ return -ENOMEM; -+ -+ ret = copy_user_glob(o_tmp); -+ if (ret) -+ return ret; -+ -+ if (o_tmp->nested) { -+ o_tmp->nested = do_copy_user_subj(o_tmp->nested, role); -+ if (IS_ERR(o_tmp->nested)) -+ return PTR_ERR(o_tmp->nested); -+ -+ /* insert into nested subject list */ -+ o_tmp->nested->next = role->hash->first; -+ role->hash->first = o_tmp->nested; -+ } -+ } -+ -+ return 0; -+} -+ -+static __u32 -+count_user_subjs(struct acl_subject_label *userp) -+{ -+ struct acl_subject_label s_tmp; -+ __u32 num = 0; -+ -+ while (userp) { -+ if (copy_from_user(&s_tmp, userp, -+ sizeof (struct acl_subject_label))) -+ break; -+ -+ userp = s_tmp.prev; -+ /* do not count nested subjects against this count, since -+ they are not included in the hash table, but are -+ attached to objects. We have already counted -+ the subjects in userspace for the allocation -+ stack -+ */ -+ if (!(s_tmp.mode & GR_NESTED)) -+ num++; -+ } -+ -+ return num; -+} -+ -+static int -+copy_user_allowedips(struct acl_role_label *rolep) -+{ -+ struct role_allowed_ip *ruserip, *rtmp = NULL, *rlast; -+ -+ ruserip = rolep->allowed_ips; -+ -+ while (ruserip) { -+ rlast = rtmp; -+ -+ if ((rtmp = (struct role_allowed_ip *) -+ acl_alloc(sizeof (struct role_allowed_ip))) == NULL) -+ return -ENOMEM; -+ -+ if (copy_from_user(rtmp, ruserip, -+ sizeof (struct role_allowed_ip))) -+ return -EFAULT; -+ -+ ruserip = rtmp->prev; -+ -+ if (!rlast) { -+ rtmp->prev = NULL; -+ rolep->allowed_ips = rtmp; -+ } else { -+ rlast->next = rtmp; -+ rtmp->prev = rlast; -+ } -+ -+ if (!ruserip) -+ rtmp->next = NULL; -+ } -+ -+ return 0; -+} -+ -+static int -+copy_user_transitions(struct acl_role_label *rolep) -+{ -+ struct role_transition *rusertp, *rtmp = NULL, *rlast; -+ -+ unsigned int len; -+ char *tmp; -+ -+ rusertp = rolep->transitions; -+ -+ while (rusertp) { -+ rlast = rtmp; -+ -+ if ((rtmp = (struct role_transition *) -+ acl_alloc(sizeof (struct role_transition))) == NULL) -+ return -ENOMEM; -+ -+ if (copy_from_user(rtmp, rusertp, -+ sizeof (struct role_transition))) -+ return -EFAULT; -+ -+ rusertp = rtmp->prev; -+ -+ len = strnlen_user(rtmp->rolename, GR_SPROLE_LEN); -+ -+ if (!len || len >= GR_SPROLE_LEN) -+ return -EINVAL; -+ -+ if ((tmp = (char *) acl_alloc(len)) == NULL) -+ return -ENOMEM; -+ -+ if (copy_from_user(tmp, rtmp->rolename, len)) -+ return -EFAULT; -+ -+ rtmp->rolename = tmp; -+ -+ if (!rlast) { -+ rtmp->prev = NULL; -+ rolep->transitions = rtmp; -+ } else { -+ rlast->next = rtmp; -+ rtmp->prev = rlast; -+ } -+ -+ if (!rusertp) -+ rtmp->next = NULL; -+ } -+ -+ return 0; -+} -+ -+static struct acl_subject_label * -+do_copy_user_subj(struct acl_subject_label *userp, struct acl_role_label *role) -+{ -+ struct acl_subject_label *s_tmp = NULL, *s_tmp2; -+ unsigned int len; -+ char *tmp; -+ __u32 num_objs; -+ struct acl_ip_label **i_tmp, *i_utmp2; -+ struct gr_hash_struct ghash; -+ struct subject_map *subjmap; -+ unsigned int i_num; -+ int err; -+ -+ s_tmp = lookup_subject_map(userp); -+ -+ /* we've already copied this subject into the kernel, just return -+ the reference to it, and don't copy it over again -+ */ -+ if (s_tmp) -+ return(s_tmp); -+ -+ if ((s_tmp = (struct acl_subject_label *) -+ acl_alloc(sizeof (struct acl_subject_label))) == NULL) -+ return ERR_PTR(-ENOMEM); -+ -+ subjmap = (struct subject_map *)kmalloc(sizeof (struct subject_map), GFP_KERNEL); -+ if (subjmap == NULL) -+ return ERR_PTR(-ENOMEM); -+ -+ subjmap->user = userp; -+ subjmap->kernel = s_tmp; -+ insert_subj_map_entry(subjmap); -+ -+ if (copy_from_user(s_tmp, userp, -+ sizeof (struct acl_subject_label))) -+ return ERR_PTR(-EFAULT); -+ -+ len = strnlen_user(s_tmp->filename, PATH_MAX); -+ -+ if (!len || len >= PATH_MAX) -+ return ERR_PTR(-EINVAL); -+ -+ if ((tmp = (char *) acl_alloc(len)) == NULL) -+ return ERR_PTR(-ENOMEM); -+ -+ if (copy_from_user(tmp, s_tmp->filename, len)) -+ return ERR_PTR(-EFAULT); -+ -+ s_tmp->filename = tmp; -+ -+ if (!strcmp(s_tmp->filename, "/")) -+ role->root_label = s_tmp; -+ -+ if (copy_from_user(&ghash, s_tmp->hash, sizeof(struct gr_hash_struct))) -+ return ERR_PTR(-EFAULT); -+ -+ /* copy user and group transition tables */ -+ -+ if (s_tmp->user_trans_num) { -+ uid_t *uidlist; -+ -+ uidlist = (uid_t *)acl_alloc(s_tmp->user_trans_num * sizeof(uid_t)); -+ if (uidlist == NULL) -+ return ERR_PTR(-ENOMEM); -+ if (copy_from_user(uidlist, s_tmp->user_transitions, s_tmp->user_trans_num * sizeof(uid_t))) -+ return ERR_PTR(-EFAULT); -+ -+ s_tmp->user_transitions = uidlist; -+ } -+ -+ if (s_tmp->group_trans_num) { -+ gid_t *gidlist; -+ -+ gidlist = (gid_t *)acl_alloc(s_tmp->group_trans_num * sizeof(gid_t)); -+ if (gidlist == NULL) -+ return ERR_PTR(-ENOMEM); -+ if (copy_from_user(gidlist, s_tmp->group_transitions, s_tmp->group_trans_num * sizeof(gid_t))) -+ return ERR_PTR(-EFAULT); -+ -+ s_tmp->group_transitions = gidlist; -+ } -+ -+ /* set up object hash table */ -+ num_objs = count_user_objs(ghash.first); -+ -+ s_tmp->obj_hash_size = num_objs; -+ s_tmp->obj_hash = -+ (struct acl_object_label **) -+ create_table(&(s_tmp->obj_hash_size), sizeof(void *)); -+ -+ if (!s_tmp->obj_hash) -+ return ERR_PTR(-ENOMEM); -+ -+ memset(s_tmp->obj_hash, 0, -+ s_tmp->obj_hash_size * -+ sizeof (struct acl_object_label *)); -+ -+ /* add in objects */ -+ err = copy_user_objs(ghash.first, s_tmp, role); -+ -+ if (err) -+ return ERR_PTR(err); -+ -+ /* set pointer for parent subject */ -+ if (s_tmp->parent_subject) { -+ s_tmp2 = do_copy_user_subj(s_tmp->parent_subject, role); -+ -+ if (IS_ERR(s_tmp2)) -+ return s_tmp2; -+ -+ s_tmp->parent_subject = s_tmp2; -+ } -+ -+ /* add in ip acls */ -+ -+ if (!s_tmp->ip_num) { -+ s_tmp->ips = NULL; -+ goto insert; -+ } -+ -+ i_tmp = -+ (struct acl_ip_label **) acl_alloc(s_tmp->ip_num * -+ sizeof (struct -+ acl_ip_label *)); -+ -+ if (!i_tmp) -+ return ERR_PTR(-ENOMEM); -+ -+ for (i_num = 0; i_num < s_tmp->ip_num; i_num++) { -+ *(i_tmp + i_num) = -+ (struct acl_ip_label *) -+ acl_alloc(sizeof (struct acl_ip_label)); -+ if (!*(i_tmp + i_num)) -+ return ERR_PTR(-ENOMEM); -+ -+ if (copy_from_user -+ (&i_utmp2, s_tmp->ips + i_num, -+ sizeof (struct acl_ip_label *))) -+ return ERR_PTR(-EFAULT); -+ -+ if (copy_from_user -+ (*(i_tmp + i_num), i_utmp2, -+ sizeof (struct acl_ip_label))) -+ return ERR_PTR(-EFAULT); -+ -+ if ((*(i_tmp + i_num))->iface == NULL) -+ continue; -+ -+ len = strnlen_user((*(i_tmp + i_num))->iface, IFNAMSIZ); -+ if (!len || len >= IFNAMSIZ) -+ return ERR_PTR(-EINVAL); -+ tmp = acl_alloc(len); -+ if (tmp == NULL) -+ return ERR_PTR(-ENOMEM); -+ if (copy_from_user(tmp, (*(i_tmp + i_num))->iface, len)) -+ return ERR_PTR(-EFAULT); -+ (*(i_tmp + i_num))->iface = tmp; -+ } -+ -+ s_tmp->ips = i_tmp; -+ -+insert: -+ if (!insert_name_entry(s_tmp->filename, s_tmp->inode, -+ s_tmp->device, (s_tmp->mode & GR_DELETED) ? 1 : 0)) -+ return ERR_PTR(-ENOMEM); -+ -+ return s_tmp; -+} -+ -+static int -+copy_user_subjs(struct acl_subject_label *userp, struct acl_role_label *role) -+{ -+ struct acl_subject_label s_pre; -+ struct acl_subject_label * ret; -+ int err; -+ -+ while (userp) { -+ if (copy_from_user(&s_pre, userp, -+ sizeof (struct acl_subject_label))) -+ return -EFAULT; -+ -+ /* do not add nested subjects here, add -+ while parsing objects -+ */ -+ -+ if (s_pre.mode & GR_NESTED) { -+ userp = s_pre.prev; -+ continue; -+ } -+ -+ ret = do_copy_user_subj(userp, role); -+ -+ err = PTR_ERR(ret); -+ if (IS_ERR(ret)) -+ return err; -+ -+ insert_acl_subj_label(ret, role); -+ -+ userp = s_pre.prev; -+ } -+ -+ return 0; -+} -+ -+static int -+copy_user_acl(struct gr_arg *arg) -+{ -+ struct acl_role_label *r_tmp = NULL, **r_utmp, *r_utmp2; -+ struct sprole_pw *sptmp; -+ struct gr_hash_struct *ghash; -+ uid_t *domainlist; -+ unsigned int r_num; -+ unsigned int len; -+ char *tmp; -+ int err = 0; -+ __u16 i; -+ __u32 num_subjs; -+ -+ /* we need a default and kernel role */ -+ if (arg->role_db.num_roles < 2) -+ return -EINVAL; -+ -+ /* copy special role authentication info from userspace */ -+ -+ num_sprole_pws = arg->num_sprole_pws; -+ acl_special_roles = (struct sprole_pw **) acl_alloc(num_sprole_pws * sizeof(struct sprole_pw *)); -+ -+ if (!acl_special_roles) { -+ err = -ENOMEM; -+ goto cleanup; -+ } -+ -+ for (i = 0; i < num_sprole_pws; i++) { -+ sptmp = (struct sprole_pw *) acl_alloc(sizeof(struct sprole_pw)); -+ if (!sptmp) { -+ err = -ENOMEM; -+ goto cleanup; -+ } -+ if (copy_from_user(sptmp, arg->sprole_pws + i, -+ sizeof (struct sprole_pw))) { -+ err = -EFAULT; -+ goto cleanup; -+ } -+ -+ len = -+ strnlen_user(sptmp->rolename, GR_SPROLE_LEN); -+ -+ if (!len || len >= GR_SPROLE_LEN) { -+ err = -EINVAL; -+ goto cleanup; -+ } -+ -+ if ((tmp = (char *) acl_alloc(len)) == NULL) { -+ err = -ENOMEM; -+ goto cleanup; -+ } -+ -+ if (copy_from_user(tmp, sptmp->rolename, len)) { -+ err = -EFAULT; -+ goto cleanup; -+ } -+ -+#ifdef CONFIG_GRKERNSEC_ACL_DEBUG -+ printk(KERN_ALERT "Copying special role %s\n", tmp); -+#endif -+ sptmp->rolename = tmp; -+ acl_special_roles[i] = sptmp; -+ } -+ -+ r_utmp = (struct acl_role_label **) arg->role_db.r_table; -+ -+ for (r_num = 0; r_num < arg->role_db.num_roles; r_num++) { -+ r_tmp = acl_alloc(sizeof (struct acl_role_label)); -+ -+ if (!r_tmp) { -+ err = -ENOMEM; -+ goto cleanup; -+ } -+ -+ if (copy_from_user(&r_utmp2, r_utmp + r_num, -+ sizeof (struct acl_role_label *))) { -+ err = -EFAULT; -+ goto cleanup; -+ } -+ -+ if (copy_from_user(r_tmp, r_utmp2, -+ sizeof (struct acl_role_label))) { -+ err = -EFAULT; -+ goto cleanup; -+ } -+ -+ len = strnlen_user(r_tmp->rolename, GR_SPROLE_LEN); -+ -+ if (!len || len >= PATH_MAX) { -+ err = -EINVAL; -+ goto cleanup; -+ } -+ -+ if ((tmp = (char *) acl_alloc(len)) == NULL) { -+ err = -ENOMEM; -+ goto cleanup; -+ } -+ if (copy_from_user(tmp, r_tmp->rolename, len)) { -+ err = -EFAULT; -+ goto cleanup; -+ } -+ r_tmp->rolename = tmp; -+ -+ if (!strcmp(r_tmp->rolename, "default") -+ && (r_tmp->roletype & GR_ROLE_DEFAULT)) { -+ default_role = r_tmp; -+ } else if (!strcmp(r_tmp->rolename, ":::kernel:::")) { -+ kernel_role = r_tmp; -+ } -+ -+ if ((ghash = (struct gr_hash_struct *) acl_alloc(sizeof(struct gr_hash_struct))) == NULL) { -+ err = -ENOMEM; -+ goto cleanup; -+ } -+ if (copy_from_user(ghash, r_tmp->hash, sizeof(struct gr_hash_struct))) { -+ err = -EFAULT; -+ goto cleanup; -+ } -+ -+ r_tmp->hash = ghash; -+ -+ num_subjs = count_user_subjs(r_tmp->hash->first); -+ -+ r_tmp->subj_hash_size = num_subjs; -+ r_tmp->subj_hash = -+ (struct acl_subject_label **) -+ create_table(&(r_tmp->subj_hash_size), sizeof(void *)); -+ -+ if (!r_tmp->subj_hash) { -+ err = -ENOMEM; -+ goto cleanup; -+ } -+ -+ err = copy_user_allowedips(r_tmp); -+ if (err) -+ goto cleanup; -+ -+ /* copy domain info */ -+ if (r_tmp->domain_children != NULL) { -+ domainlist = acl_alloc(r_tmp->domain_child_num * sizeof(uid_t)); -+ if (domainlist == NULL) { -+ err = -ENOMEM; -+ goto cleanup; -+ } -+ if (copy_from_user(domainlist, r_tmp->domain_children, r_tmp->domain_child_num * sizeof(uid_t))) { -+ err = -EFAULT; -+ goto cleanup; -+ } -+ r_tmp->domain_children = domainlist; -+ } -+ -+ err = copy_user_transitions(r_tmp); -+ if (err) -+ goto cleanup; -+ -+ memset(r_tmp->subj_hash, 0, -+ r_tmp->subj_hash_size * -+ sizeof (struct acl_subject_label *)); -+ -+ err = copy_user_subjs(r_tmp->hash->first, r_tmp); -+ -+ if (err) -+ goto cleanup; -+ -+ /* set nested subject list to null */ -+ r_tmp->hash->first = NULL; -+ -+ insert_acl_role_label(r_tmp); -+ } -+ -+ goto return_err; -+ cleanup: -+ free_variables(); -+ return_err: -+ return err; -+ -+} -+ -+static int -+gracl_init(struct gr_arg *args) -+{ -+ int error = 0; -+ -+ memcpy(gr_system_salt, args->salt, GR_SALT_LEN); -+ memcpy(gr_system_sum, args->sum, GR_SHA_LEN); -+ -+ if (init_variables(args)) { -+ gr_log_str(GR_DONT_AUDIT_GOOD, GR_INITF_ACL_MSG, GR_VERSION); -+ error = -ENOMEM; -+ free_variables(); -+ goto out; -+ } -+ -+ error = copy_user_acl(args); -+ free_init_variables(); -+ if (error) { -+ free_variables(); -+ goto out; -+ } -+ -+ if ((error = gr_set_acls(0))) { -+ free_variables(); -+ goto out; -+ } -+ -+ gr_status |= GR_READY; -+ out: -+ return error; -+} -+ -+/* derived from glibc fnmatch() 0: match, 1: no match*/ -+ -+static int -+glob_match(const char *p, const char *n) -+{ -+ char c; -+ -+ while ((c = *p++) != '\0') { -+ switch (c) { -+ case '?': -+ if (*n == '\0') -+ return 1; -+ else if (*n == '/') -+ return 1; -+ break; -+ case '\\': -+ if (*n != c) -+ return 1; -+ break; -+ case '*': -+ for (c = *p++; c == '?' || c == '*'; c = *p++) { -+ if (*n == '/') -+ return 1; -+ else if (c == '?') { -+ if (*n == '\0') -+ return 1; -+ else -+ ++n; -+ } -+ } -+ if (c == '\0') { -+ return 0; -+ } else { -+ const char *endp; -+ -+ if ((endp = strchr(n, '/')) == NULL) -+ endp = n + strlen(n); -+ -+ if (c == '[') { -+ for (--p; n < endp; ++n) -+ if (!glob_match(p, n)) -+ return 0; -+ } else if (c == '/') { -+ while (*n != '\0' && *n != '/') -+ ++n; -+ if (*n == '/' && !glob_match(p, n + 1)) -+ return 0; -+ } else { -+ for (--p; n < endp; ++n) -+ if (*n == c && !glob_match(p, n)) -+ return 0; -+ } -+ -+ return 1; -+ } -+ case '[': -+ { -+ int not; -+ char cold; -+ -+ if (*n == '\0' || *n == '/') -+ return 1; -+ -+ not = (*p == '!' || *p == '^'); -+ if (not) -+ ++p; -+ -+ c = *p++; -+ for (;;) { -+ unsigned char fn = (unsigned char)*n; -+ -+ if (c == '\0') -+ return 1; -+ else { -+ if (c == fn) -+ goto matched; -+ cold = c; -+ c = *p++; -+ -+ if (c == '-' && *p != ']') { -+ unsigned char cend = *p++; -+ -+ if (cend == '\0') -+ return 1; -+ -+ if (cold <= fn && fn <= cend) -+ goto matched; -+ -+ c = *p++; -+ } -+ } -+ -+ if (c == ']') -+ break; -+ } -+ if (!not) -+ return 1; -+ break; -+ matched: -+ while (c != ']') { -+ if (c == '\0') -+ return 1; -+ -+ c = *p++; -+ } -+ if (not) -+ return 1; -+ } -+ break; -+ default: -+ if (c != *n) -+ return 1; -+ } -+ -+ ++n; -+ } -+ -+ if (*n == '\0') -+ return 0; -+ -+ if (*n == '/') -+ return 0; -+ -+ return 1; -+} -+ -+static struct acl_object_label * -+chk_glob_label(struct acl_object_label *globbed, -+ struct dentry *dentry, struct vfsmount *mnt, char **path) -+{ -+ struct acl_object_label *tmp; -+ -+ if (*path == NULL) -+ *path = gr_to_filename_nolock(dentry, mnt); -+ -+ tmp = globbed; -+ -+ while (tmp) { -+ if (!glob_match(tmp->filename, *path)) -+ return tmp; -+ tmp = tmp->next; -+ } -+ -+ return NULL; -+} -+ -+static struct acl_object_label * -+__full_lookup(const struct dentry *orig_dentry, const struct vfsmount *orig_mnt, -+ const ino_t curr_ino, const dev_t curr_dev, -+ const struct acl_subject_label *subj, char **path) -+{ -+ struct acl_subject_label *tmpsubj; -+ struct acl_object_label *retval; -+ struct acl_object_label *retval2; -+ -+ tmpsubj = (struct acl_subject_label *) subj; -+ read_lock(&gr_inode_lock); -+ do { -+ retval = lookup_acl_obj_label(curr_ino, curr_dev, tmpsubj); -+ if (retval) { -+ if (retval->globbed) { -+ retval2 = chk_glob_label(retval->globbed, (struct dentry *)orig_dentry, -+ (struct vfsmount *)orig_mnt, path); -+ if (retval2) -+ retval = retval2; -+ } -+ break; -+ } -+ } while ((tmpsubj = tmpsubj->parent_subject)); -+ read_unlock(&gr_inode_lock); -+ -+ return retval; -+} -+ -+static __inline__ struct acl_object_label * -+full_lookup(const struct dentry *orig_dentry, const struct vfsmount *orig_mnt, -+ const struct dentry *curr_dentry, -+ const struct acl_subject_label *subj, char **path) -+{ -+ return __full_lookup(orig_dentry, orig_mnt, -+ curr_dentry->d_inode->i_ino, -+ curr_dentry->d_inode->i_sb->s_dev, subj, path); -+} -+ -+static struct acl_object_label * -+__chk_obj_label(const struct dentry *l_dentry, const struct vfsmount *l_mnt, -+ const struct acl_subject_label *subj, char *path) -+{ -+ struct dentry *dentry = (struct dentry *) l_dentry; -+ struct vfsmount *mnt = (struct vfsmount *) l_mnt; -+ struct acl_object_label *retval; -+ -+ spin_lock(&dcache_lock); -+ -+ if (unlikely(mnt == shm_mnt || mnt == pipe_mnt || mnt == sock_mnt || -+ /* ignore Eric Biederman */ -+ IS_PRIVATE(l_dentry->d_inode))) { -+ retval = fakefs_obj; -+ goto out; -+ } -+ -+ for (;;) { -+ if (dentry == real_root && mnt == real_root_mnt) -+ break; -+ -+ if (dentry == mnt->mnt_root || IS_ROOT(dentry)) { -+ if (mnt->mnt_parent == mnt) -+ break; -+ -+ retval = full_lookup(l_dentry, l_mnt, dentry, subj, &path); -+ if (retval != NULL) -+ goto out; -+ -+ dentry = mnt->mnt_mountpoint; -+ mnt = mnt->mnt_parent; -+ continue; -+ } -+ -+ retval = full_lookup(l_dentry, l_mnt, dentry, subj, &path); -+ if (retval != NULL) -+ goto out; -+ -+ dentry = dentry->d_parent; -+ } -+ -+ retval = full_lookup(l_dentry, l_mnt, dentry, subj, &path); -+ -+ if (retval == NULL) -+ retval = full_lookup(l_dentry, l_mnt, real_root, subj, &path); -+out: -+ spin_unlock(&dcache_lock); -+ return retval; -+} -+ -+static __inline__ struct acl_object_label * -+chk_obj_label(const struct dentry *l_dentry, const struct vfsmount *l_mnt, -+ const struct acl_subject_label *subj) -+{ -+ char *path = NULL; -+ return __chk_obj_label(l_dentry, l_mnt, subj, path); -+} -+ -+static __inline__ struct acl_object_label * -+chk_obj_create_label(const struct dentry *l_dentry, const struct vfsmount *l_mnt, -+ const struct acl_subject_label *subj, char *path) -+{ -+ return __chk_obj_label(l_dentry, l_mnt, subj, path); -+} -+ -+static struct acl_subject_label * -+chk_subj_label(const struct dentry *l_dentry, const struct vfsmount *l_mnt, -+ const struct acl_role_label *role) -+{ -+ struct dentry *dentry = (struct dentry *) l_dentry; -+ struct vfsmount *mnt = (struct vfsmount *) l_mnt; -+ struct acl_subject_label *retval; -+ -+ spin_lock(&dcache_lock); -+ -+ for (;;) { -+ if (dentry == real_root && mnt == real_root_mnt) -+ break; -+ if (dentry == mnt->mnt_root || IS_ROOT(dentry)) { -+ if (mnt->mnt_parent == mnt) -+ break; -+ -+ read_lock(&gr_inode_lock); -+ retval = -+ lookup_acl_subj_label(dentry->d_inode->i_ino, -+ dentry->d_inode->i_sb->s_dev, role); -+ read_unlock(&gr_inode_lock); -+ if (retval != NULL) -+ goto out; -+ -+ dentry = mnt->mnt_mountpoint; -+ mnt = mnt->mnt_parent; -+ continue; -+ } -+ -+ read_lock(&gr_inode_lock); -+ retval = lookup_acl_subj_label(dentry->d_inode->i_ino, -+ dentry->d_inode->i_sb->s_dev, role); -+ read_unlock(&gr_inode_lock); -+ if (retval != NULL) -+ goto out; -+ -+ dentry = dentry->d_parent; -+ } -+ -+ read_lock(&gr_inode_lock); -+ retval = lookup_acl_subj_label(dentry->d_inode->i_ino, -+ dentry->d_inode->i_sb->s_dev, role); -+ read_unlock(&gr_inode_lock); -+ -+ if (unlikely(retval == NULL)) { -+ read_lock(&gr_inode_lock); -+ retval = lookup_acl_subj_label(real_root->d_inode->i_ino, -+ real_root->d_inode->i_sb->s_dev, role); -+ read_unlock(&gr_inode_lock); -+ } -+out: -+ spin_unlock(&dcache_lock); -+ -+ return retval; -+} -+ -+static void -+gr_log_learn(const struct task_struct *task, const struct dentry *dentry, const struct vfsmount *mnt, const __u32 mode) -+{ -+ security_learn(GR_LEARN_AUDIT_MSG, task->role->rolename, task->role->roletype, -+ task->uid, task->gid, task->exec_file ? gr_to_filename1(task->exec_file->f_path.dentry, -+ task->exec_file->f_path.mnt) : task->acl->filename, task->acl->filename, -+ 1, 1, gr_to_filename(dentry, mnt), (unsigned long) mode, NIPQUAD(task->signal->curr_ip)); -+ -+ return; -+} -+ -+static void -+gr_log_learn_sysctl(const struct task_struct *task, const char *path, const __u32 mode) -+{ -+ security_learn(GR_LEARN_AUDIT_MSG, task->role->rolename, task->role->roletype, -+ task->uid, task->gid, task->exec_file ? gr_to_filename1(task->exec_file->f_path.dentry, -+ task->exec_file->f_path.mnt) : task->acl->filename, task->acl->filename, -+ 1, 1, path, (unsigned long) mode, NIPQUAD(task->signal->curr_ip)); -+ -+ return; -+} -+ -+static void -+gr_log_learn_id_change(const struct task_struct *task, const char type, const unsigned int real, -+ const unsigned int effective, const unsigned int fs) -+{ -+ security_learn(GR_ID_LEARN_MSG, task->role->rolename, task->role->roletype, -+ task->uid, task->gid, task->exec_file ? gr_to_filename1(task->exec_file->f_path.dentry, -+ task->exec_file->f_path.mnt) : task->acl->filename, task->acl->filename, -+ type, real, effective, fs, NIPQUAD(task->signal->curr_ip)); -+ -+ return; -+} -+ -+__u32 -+gr_check_link(const struct dentry * new_dentry, -+ const struct dentry * parent_dentry, -+ const struct vfsmount * parent_mnt, -+ const struct dentry * old_dentry, const struct vfsmount * old_mnt) -+{ -+ struct acl_object_label *obj; -+ __u32 oldmode, newmode; -+ __u32 needmode; -+ -+ if (unlikely(!(gr_status & GR_READY))) -+ return (GR_CREATE | GR_LINK); -+ -+ obj = chk_obj_label(old_dentry, old_mnt, current->acl); -+ oldmode = obj->mode; -+ -+ if (current->acl->mode & (GR_LEARN | GR_INHERITLEARN)) -+ oldmode |= (GR_CREATE | GR_LINK); -+ -+ needmode = GR_CREATE | GR_AUDIT_CREATE | GR_SUPPRESS; -+ if (old_dentry->d_inode->i_mode & (S_ISUID | S_ISGID)) -+ needmode |= GR_SETID | GR_AUDIT_SETID; -+ -+ newmode = -+ gr_check_create(new_dentry, parent_dentry, parent_mnt, -+ oldmode | needmode); -+ -+ needmode = newmode & (GR_FIND | GR_APPEND | GR_WRITE | GR_EXEC | -+ GR_SETID | GR_READ | GR_FIND | GR_DELETE | -+ GR_INHERIT | GR_AUDIT_INHERIT); -+ -+ if (old_dentry->d_inode->i_mode & (S_ISUID | S_ISGID) && !(newmode & GR_SETID)) -+ goto bad; -+ -+ if ((oldmode & needmode) != needmode) -+ goto bad; -+ -+ needmode = oldmode & (GR_NOPTRACE | GR_PTRACERD | GR_INHERIT | GR_AUDITS); -+ if ((newmode & needmode) != needmode) -+ goto bad; -+ -+ if ((newmode & (GR_CREATE | GR_LINK)) == (GR_CREATE | GR_LINK)) -+ return newmode; -+bad: -+ needmode = oldmode; -+ if (old_dentry->d_inode->i_mode & (S_ISUID | S_ISGID)) -+ needmode |= GR_SETID; -+ -+ if (current->acl->mode & (GR_LEARN | GR_INHERITLEARN)) { -+ gr_log_learn(current, old_dentry, old_mnt, needmode); -+ return (GR_CREATE | GR_LINK); -+ } else if (newmode & GR_SUPPRESS) -+ return GR_SUPPRESS; -+ else -+ return 0; -+} -+ -+__u32 -+gr_search_file(const struct dentry * dentry, const __u32 mode, -+ const struct vfsmount * mnt) -+{ -+ __u32 retval = mode; -+ struct acl_subject_label *curracl; -+ struct acl_object_label *currobj; -+ -+ if (unlikely(!(gr_status & GR_READY))) -+ return (mode & ~GR_AUDITS); -+ -+ curracl = current->acl; -+ -+ currobj = chk_obj_label(dentry, mnt, curracl); -+ retval = currobj->mode & mode; -+ -+ if (unlikely -+ ((curracl->mode & (GR_LEARN | GR_INHERITLEARN)) && !(mode & GR_NOPTRACE) -+ && (retval != (mode & ~(GR_AUDITS | GR_SUPPRESS))))) { -+ __u32 new_mode = mode; -+ -+ new_mode &= ~(GR_AUDITS | GR_SUPPRESS); -+ -+ retval = new_mode; -+ -+ if (new_mode & GR_EXEC && curracl->mode & GR_INHERITLEARN) -+ new_mode |= GR_INHERIT; -+ -+ if (!(mode & GR_NOLEARN)) -+ gr_log_learn(current, dentry, mnt, new_mode); -+ } -+ -+ return retval; -+} -+ -+__u32 -+gr_check_create(const struct dentry * new_dentry, const struct dentry * parent, -+ const struct vfsmount * mnt, const __u32 mode) -+{ -+ struct name_entry *match; -+ struct acl_object_label *matchpo; -+ struct acl_subject_label *curracl; -+ char *path; -+ __u32 retval; -+ -+ if (unlikely(!(gr_status & GR_READY))) -+ return (mode & ~GR_AUDITS); -+ -+ preempt_disable(); -+ path = gr_to_filename_rbac(new_dentry, mnt); -+ match = lookup_name_entry_create(path); -+ -+ if (!match) -+ goto check_parent; -+ -+ curracl = current->acl; -+ -+ read_lock(&gr_inode_lock); -+ matchpo = lookup_acl_obj_label_create(match->inode, match->device, curracl); -+ read_unlock(&gr_inode_lock); -+ -+ if (matchpo) { -+ if ((matchpo->mode & mode) != -+ (mode & ~(GR_AUDITS | GR_SUPPRESS)) -+ && curracl->mode & (GR_LEARN | GR_INHERITLEARN)) { -+ __u32 new_mode = mode; -+ -+ new_mode &= ~(GR_AUDITS | GR_SUPPRESS); -+ -+ gr_log_learn(current, new_dentry, mnt, new_mode); -+ -+ preempt_enable(); -+ return new_mode; -+ } -+ preempt_enable(); -+ return (matchpo->mode & mode); -+ } -+ -+ check_parent: -+ curracl = current->acl; -+ -+ matchpo = chk_obj_create_label(parent, mnt, curracl, path); -+ retval = matchpo->mode & mode; -+ -+ if ((retval != (mode & ~(GR_AUDITS | GR_SUPPRESS))) -+ && (curracl->mode & (GR_LEARN | GR_INHERITLEARN))) { -+ __u32 new_mode = mode; -+ -+ new_mode &= ~(GR_AUDITS | GR_SUPPRESS); -+ -+ gr_log_learn(current, new_dentry, mnt, new_mode); -+ preempt_enable(); -+ return new_mode; -+ } -+ -+ preempt_enable(); -+ return retval; -+} -+ -+int -+gr_check_hidden_task(const struct task_struct *task) -+{ -+ if (unlikely(!(gr_status & GR_READY))) -+ return 0; -+ -+ if (!(task->acl->mode & GR_PROCFIND) && !(current->acl->mode & GR_VIEW)) -+ return 1; -+ -+ return 0; -+} -+ -+int -+gr_check_protected_task(const struct task_struct *task) -+{ -+ if (unlikely(!(gr_status & GR_READY) || !task)) -+ return 0; -+ -+ if ((task->acl->mode & GR_PROTECTED) && !(current->acl->mode & GR_KILL) && -+ task->acl != current->acl) -+ return 1; -+ -+ return 0; -+} -+ -+void -+gr_copy_label(struct task_struct *tsk) -+{ -+ tsk->signal->used_accept = 0; -+ tsk->acl_sp_role = 0; -+ tsk->acl_role_id = current->acl_role_id; -+ tsk->acl = current->acl; -+ tsk->role = current->role; -+ tsk->signal->curr_ip = current->signal->curr_ip; -+ if (current->exec_file) -+ get_file(current->exec_file); -+ tsk->exec_file = current->exec_file; -+ tsk->is_writable = current->is_writable; -+ if (unlikely(current->signal->used_accept)) -+ current->signal->curr_ip = 0; -+ -+ return; -+} -+ -+static void -+gr_set_proc_res(struct task_struct *task) -+{ -+ struct acl_subject_label *proc; -+ unsigned short i; -+ -+ proc = task->acl; -+ -+ if (proc->mode & (GR_LEARN | GR_INHERITLEARN)) -+ return; -+ -+ for (i = 0; i < (GR_NLIMITS - 1); i++) { -+ if (!(proc->resmask & (1 << i))) -+ continue; -+ -+ task->signal->rlim[i].rlim_cur = proc->res[i].rlim_cur; -+ task->signal->rlim[i].rlim_max = proc->res[i].rlim_max; -+ } -+ -+ return; -+} -+ -+int -+gr_check_user_change(int real, int effective, int fs) -+{ -+ unsigned int i; -+ __u16 num; -+ uid_t *uidlist; -+ int curuid; -+ int realok = 0; -+ int effectiveok = 0; -+ int fsok = 0; -+ -+ if (unlikely(!(gr_status & GR_READY))) -+ return 0; -+ -+ if (current->acl->mode & (GR_LEARN | GR_INHERITLEARN)) -+ gr_log_learn_id_change(current, 'u', real, effective, fs); -+ -+ num = current->acl->user_trans_num; -+ uidlist = current->acl->user_transitions; -+ -+ if (uidlist == NULL) -+ return 0; -+ -+ if (real == -1) -+ realok = 1; -+ if (effective == -1) -+ effectiveok = 1; -+ if (fs == -1) -+ fsok = 1; -+ -+ if (current->acl->user_trans_type & GR_ID_ALLOW) { -+ for (i = 0; i < num; i++) { -+ curuid = (int)uidlist[i]; -+ if (real == curuid) -+ realok = 1; -+ if (effective == curuid) -+ effectiveok = 1; -+ if (fs == curuid) -+ fsok = 1; -+ } -+ } else if (current->acl->user_trans_type & GR_ID_DENY) { -+ for (i = 0; i < num; i++) { -+ curuid = (int)uidlist[i]; -+ if (real == curuid) -+ break; -+ if (effective == curuid) -+ break; -+ if (fs == curuid) -+ break; -+ } -+ /* not in deny list */ -+ if (i == num) { -+ realok = 1; -+ effectiveok = 1; -+ fsok = 1; -+ } -+ } -+ -+ if (realok && effectiveok && fsok) -+ return 0; -+ else { -+ gr_log_int(GR_DONT_AUDIT, GR_USRCHANGE_ACL_MSG, realok ? (effectiveok ? (fsok ? 0 : fs) : effective) : real); -+ return 1; -+ } -+} -+ -+int -+gr_check_group_change(int real, int effective, int fs) -+{ -+ unsigned int i; -+ __u16 num; -+ gid_t *gidlist; -+ int curgid; -+ int realok = 0; -+ int effectiveok = 0; -+ int fsok = 0; -+ -+ if (unlikely(!(gr_status & GR_READY))) -+ return 0; -+ -+ if (current->acl->mode & (GR_LEARN | GR_INHERITLEARN)) -+ gr_log_learn_id_change(current, 'g', real, effective, fs); -+ -+ num = current->acl->group_trans_num; -+ gidlist = current->acl->group_transitions; -+ -+ if (gidlist == NULL) -+ return 0; -+ -+ if (real == -1) -+ realok = 1; -+ if (effective == -1) -+ effectiveok = 1; -+ if (fs == -1) -+ fsok = 1; -+ -+ if (current->acl->group_trans_type & GR_ID_ALLOW) { -+ for (i = 0; i < num; i++) { -+ curgid = (int)gidlist[i]; -+ if (real == curgid) -+ realok = 1; -+ if (effective == curgid) -+ effectiveok = 1; -+ if (fs == curgid) -+ fsok = 1; -+ } -+ } else if (current->acl->group_trans_type & GR_ID_DENY) { -+ for (i = 0; i < num; i++) { -+ curgid = (int)gidlist[i]; -+ if (real == curgid) -+ break; -+ if (effective == curgid) -+ break; -+ if (fs == curgid) -+ break; -+ } -+ /* not in deny list */ -+ if (i == num) { -+ realok = 1; -+ effectiveok = 1; -+ fsok = 1; -+ } -+ } -+ -+ if (realok && effectiveok && fsok) -+ return 0; -+ else { -+ gr_log_int(GR_DONT_AUDIT, GR_GRPCHANGE_ACL_MSG, realok ? (effectiveok ? (fsok ? 0 : fs) : effective) : real); -+ return 1; -+ } -+} -+ -+void -+gr_set_role_label(struct task_struct *task, const uid_t uid, const uid_t gid) -+{ -+ struct acl_role_label *role = task->role; -+ struct acl_subject_label *subj = NULL; -+ struct acl_object_label *obj; -+ struct file *filp; -+ -+ if (unlikely(!(gr_status & GR_READY))) -+ return; -+ -+ filp = task->exec_file; -+ -+ /* kernel process, we'll give them the kernel role */ -+ if (unlikely(!filp)) { -+ task->role = kernel_role; -+ task->acl = kernel_role->root_label; -+ return; -+ } else if (!task->role || !(task->role->roletype & GR_ROLE_SPECIAL)) -+ role = lookup_acl_role_label(task, uid, gid); -+ -+ /* perform subject lookup in possibly new role -+ we can use this result below in the case where role == task->role -+ */ -+ subj = chk_subj_label(filp->f_path.dentry, filp->f_path.mnt, role); -+ -+ /* if we changed uid/gid, but result in the same role -+ and are using inheritance, don't lose the inherited subject -+ if current subject is other than what normal lookup -+ would result in, we arrived via inheritance, don't -+ lose subject -+ */ -+ if (role != task->role || (!(task->acl->mode & GR_INHERITLEARN) && -+ (subj == task->acl))) -+ task->acl = subj; -+ -+ task->role = role; -+ -+ task->is_writable = 0; -+ -+ /* ignore additional mmap checks for processes that are writable -+ by the default ACL */ -+ obj = chk_obj_label(filp->f_path.dentry, filp->f_path.mnt, default_role->root_label); -+ if (unlikely(obj->mode & GR_WRITE)) -+ task->is_writable = 1; -+ obj = chk_obj_label(filp->f_path.dentry, filp->f_path.mnt, task->role->root_label); -+ if (unlikely(obj->mode & GR_WRITE)) -+ task->is_writable = 1; -+ -+#ifdef CONFIG_GRKERNSEC_ACL_DEBUG -+ printk(KERN_ALERT "Set role label for (%s:%d): role:%s, subject:%s\n", task->comm, task->pid, task->role->rolename, task->acl->filename); -+#endif -+ -+ gr_set_proc_res(task); -+ -+ return; -+} -+ -+int -+gr_set_proc_label(const struct dentry *dentry, const struct vfsmount *mnt) -+{ -+ struct task_struct *task = current; -+ struct acl_subject_label *newacl; -+ struct acl_object_label *obj; -+ __u32 retmode; -+ -+ if (unlikely(!(gr_status & GR_READY))) -+ return 0; -+ -+ newacl = chk_subj_label(dentry, mnt, task->role); -+ -+ task_lock(task); -+ if (((task->ptrace & PT_PTRACED) && !(task->acl->mode & -+ GR_POVERRIDE) && (task->acl != newacl) && -+ !(task->role->roletype & GR_ROLE_GOD) && -+ !gr_search_file(dentry, GR_PTRACERD, mnt) && -+ !(task->acl->mode & (GR_LEARN | GR_INHERITLEARN))) || -+ (atomic_read(&task->fs->count) > 1 || -+ atomic_read(&task->files->count) > 1 || -+ atomic_read(&task->sighand->count) > 1)) { -+ task_unlock(task); -+ gr_log_fs_generic(GR_DONT_AUDIT, GR_PTRACE_EXEC_ACL_MSG, dentry, mnt); -+ return -EACCES; -+ } -+ task_unlock(task); -+ -+ obj = chk_obj_label(dentry, mnt, task->acl); -+ retmode = obj->mode & (GR_INHERIT | GR_AUDIT_INHERIT); -+ -+ if (!(task->acl->mode & GR_INHERITLEARN) && -+ ((newacl->mode & GR_LEARN) || !(retmode & GR_INHERIT))) { -+ if (obj->nested) -+ task->acl = obj->nested; -+ else -+ task->acl = newacl; -+ } else if (retmode & GR_INHERIT && retmode & GR_AUDIT_INHERIT) -+ gr_log_str_fs(GR_DO_AUDIT, GR_INHERIT_ACL_MSG, task->acl->filename, dentry, mnt); -+ -+ task->is_writable = 0; -+ -+ /* ignore additional mmap checks for processes that are writable -+ by the default ACL */ -+ obj = chk_obj_label(dentry, mnt, default_role->root_label); -+ if (unlikely(obj->mode & GR_WRITE)) -+ task->is_writable = 1; -+ obj = chk_obj_label(dentry, mnt, task->role->root_label); -+ if (unlikely(obj->mode & GR_WRITE)) -+ task->is_writable = 1; -+ -+ gr_set_proc_res(task); -+ -+#ifdef CONFIG_GRKERNSEC_ACL_DEBUG -+ printk(KERN_ALERT "Set subject label for (%s:%d): role:%s, subject:%s\n", task->comm, task->pid, task->role->rolename, task->acl->filename); -+#endif -+ return 0; -+} -+ -+/* always called with valid inodev ptr */ -+static void -+do_handle_delete(struct inodev_entry *inodev, const ino_t ino, const dev_t dev) -+{ -+ struct acl_object_label *matchpo; -+ struct acl_subject_label *matchps; -+ struct acl_subject_label *subj; -+ struct acl_role_label *role; -+ unsigned int i, x; -+ -+ FOR_EACH_ROLE_START(role, i) -+ FOR_EACH_SUBJECT_START(role, subj, x) -+ if ((matchpo = lookup_acl_obj_label(ino, dev, subj)) != NULL) -+ matchpo->mode |= GR_DELETED; -+ FOR_EACH_SUBJECT_END(subj,x) -+ FOR_EACH_NESTED_SUBJECT_START(role, subj) -+ if (subj->inode == ino && subj->device == dev) -+ subj->mode |= GR_DELETED; -+ FOR_EACH_NESTED_SUBJECT_END(subj) -+ if ((matchps = lookup_acl_subj_label(ino, dev, role)) != NULL) -+ matchps->mode |= GR_DELETED; -+ FOR_EACH_ROLE_END(role,i) -+ -+ inodev->nentry->deleted = 1; -+ -+ return; -+} -+ -+void -+gr_handle_delete(const ino_t ino, const dev_t dev) -+{ -+ struct inodev_entry *inodev; -+ -+ if (unlikely(!(gr_status & GR_READY))) -+ return; -+ -+ write_lock(&gr_inode_lock); -+ inodev = lookup_inodev_entry(ino, dev); -+ if (inodev != NULL) -+ do_handle_delete(inodev, ino, dev); -+ write_unlock(&gr_inode_lock); -+ -+ return; -+} -+ -+static void -+update_acl_obj_label(const ino_t oldinode, const dev_t olddevice, -+ const ino_t newinode, const dev_t newdevice, -+ struct acl_subject_label *subj) -+{ -+ unsigned int index = fhash(oldinode, olddevice, subj->obj_hash_size); -+ struct acl_object_label *match; -+ -+ match = subj->obj_hash[index]; -+ -+ while (match && (match->inode != oldinode || -+ match->device != olddevice || -+ !(match->mode & GR_DELETED))) -+ match = match->next; -+ -+ if (match && (match->inode == oldinode) -+ && (match->device == olddevice) -+ && (match->mode & GR_DELETED)) { -+ if (match->prev == NULL) { -+ subj->obj_hash[index] = match->next; -+ if (match->next != NULL) -+ match->next->prev = NULL; -+ } else { -+ match->prev->next = match->next; -+ if (match->next != NULL) -+ match->next->prev = match->prev; -+ } -+ match->prev = NULL; -+ match->next = NULL; -+ match->inode = newinode; -+ match->device = newdevice; -+ match->mode &= ~GR_DELETED; -+ -+ insert_acl_obj_label(match, subj); -+ } -+ -+ return; -+} -+ -+static void -+update_acl_subj_label(const ino_t oldinode, const dev_t olddevice, -+ const ino_t newinode, const dev_t newdevice, -+ struct acl_role_label *role) -+{ -+ unsigned int index = fhash(oldinode, olddevice, role->subj_hash_size); -+ struct acl_subject_label *match; -+ -+ match = role->subj_hash[index]; -+ -+ while (match && (match->inode != oldinode || -+ match->device != olddevice || -+ !(match->mode & GR_DELETED))) -+ match = match->next; -+ -+ if (match && (match->inode == oldinode) -+ && (match->device == olddevice) -+ && (match->mode & GR_DELETED)) { -+ if (match->prev == NULL) { -+ role->subj_hash[index] = match->next; -+ if (match->next != NULL) -+ match->next->prev = NULL; -+ } else { -+ match->prev->next = match->next; -+ if (match->next != NULL) -+ match->next->prev = match->prev; -+ } -+ match->prev = NULL; -+ match->next = NULL; -+ match->inode = newinode; -+ match->device = newdevice; -+ match->mode &= ~GR_DELETED; -+ -+ insert_acl_subj_label(match, role); -+ } -+ -+ return; -+} -+ -+static void -+update_inodev_entry(const ino_t oldinode, const dev_t olddevice, -+ const ino_t newinode, const dev_t newdevice) -+{ -+ unsigned int index = fhash(oldinode, olddevice, inodev_set.i_size); -+ struct inodev_entry *match; -+ -+ match = inodev_set.i_hash[index]; -+ -+ while (match && (match->nentry->inode != oldinode || -+ match->nentry->device != olddevice || !match->nentry->deleted)) -+ match = match->next; -+ -+ if (match && (match->nentry->inode == oldinode) -+ && (match->nentry->device == olddevice) && -+ match->nentry->deleted) { -+ if (match->prev == NULL) { -+ inodev_set.i_hash[index] = match->next; -+ if (match->next != NULL) -+ match->next->prev = NULL; -+ } else { -+ match->prev->next = match->next; -+ if (match->next != NULL) -+ match->next->prev = match->prev; -+ } -+ match->prev = NULL; -+ match->next = NULL; -+ match->nentry->inode = newinode; -+ match->nentry->device = newdevice; -+ match->nentry->deleted = 0; -+ -+ insert_inodev_entry(match); -+ } -+ -+ return; -+} -+ -+static void -+do_handle_create(const struct name_entry *matchn, const struct dentry *dentry, -+ const struct vfsmount *mnt) -+{ -+ struct acl_subject_label *subj; -+ struct acl_role_label *role; -+ unsigned int i, x; -+ -+ FOR_EACH_ROLE_START(role, i) -+ update_acl_subj_label(matchn->inode, matchn->device, -+ dentry->d_inode->i_ino, -+ dentry->d_inode->i_sb->s_dev, role); -+ -+ FOR_EACH_NESTED_SUBJECT_START(role, subj) -+ if ((subj->inode == dentry->d_inode->i_ino) && -+ (subj->device == dentry->d_inode->i_sb->s_dev)) { -+ subj->inode = dentry->d_inode->i_ino; -+ subj->device = dentry->d_inode->i_sb->s_dev; -+ } -+ FOR_EACH_NESTED_SUBJECT_END(subj) -+ FOR_EACH_SUBJECT_START(role, subj, x) -+ update_acl_obj_label(matchn->inode, matchn->device, -+ dentry->d_inode->i_ino, -+ dentry->d_inode->i_sb->s_dev, subj); -+ FOR_EACH_SUBJECT_END(subj,x) -+ FOR_EACH_ROLE_END(role,i) -+ -+ update_inodev_entry(matchn->inode, matchn->device, -+ dentry->d_inode->i_ino, dentry->d_inode->i_sb->s_dev); -+ -+ return; -+} -+ -+void -+gr_handle_create(const struct dentry *dentry, const struct vfsmount *mnt) -+{ -+ struct name_entry *matchn; -+ -+ if (unlikely(!(gr_status & GR_READY))) -+ return; -+ -+ preempt_disable(); -+ matchn = lookup_name_entry(gr_to_filename_rbac(dentry, mnt)); -+ -+ if (unlikely((unsigned long)matchn)) { -+ write_lock(&gr_inode_lock); -+ do_handle_create(matchn, dentry, mnt); -+ write_unlock(&gr_inode_lock); -+ } -+ preempt_enable(); -+ -+ return; -+} -+ -+void -+gr_handle_rename(struct inode *old_dir, struct inode *new_dir, -+ struct dentry *old_dentry, -+ struct dentry *new_dentry, -+ struct vfsmount *mnt, const __u8 replace) -+{ -+ struct name_entry *matchn; -+ struct inodev_entry *inodev; -+ -+ /* vfs_rename swaps the name and parent link for old_dentry and -+ new_dentry -+ at this point, old_dentry has the new name, parent link, and inode -+ for the renamed file -+ if a file is being replaced by a rename, new_dentry has the inode -+ and name for the replaced file -+ */ -+ -+ if (unlikely(!(gr_status & GR_READY))) -+ return; -+ -+ preempt_disable(); -+ matchn = lookup_name_entry(gr_to_filename_rbac(old_dentry, mnt)); -+ -+ /* we wouldn't have to check d_inode if it weren't for -+ NFS silly-renaming -+ */ -+ -+ write_lock(&gr_inode_lock); -+ if (unlikely(replace && new_dentry->d_inode)) { -+ inodev = lookup_inodev_entry(new_dentry->d_inode->i_ino, -+ new_dentry->d_inode->i_sb->s_dev); -+ if (inodev != NULL && (new_dentry->d_inode->i_nlink <= 1)) -+ do_handle_delete(inodev, new_dentry->d_inode->i_ino, -+ new_dentry->d_inode->i_sb->s_dev); -+ } -+ -+ inodev = lookup_inodev_entry(old_dentry->d_inode->i_ino, -+ old_dentry->d_inode->i_sb->s_dev); -+ if (inodev != NULL && (old_dentry->d_inode->i_nlink <= 1)) -+ do_handle_delete(inodev, old_dentry->d_inode->i_ino, -+ old_dentry->d_inode->i_sb->s_dev); -+ -+ if (unlikely((unsigned long)matchn)) -+ do_handle_create(matchn, old_dentry, mnt); -+ -+ write_unlock(&gr_inode_lock); -+ preempt_enable(); -+ -+ return; -+} -+ -+static int -+lookup_special_role_auth(__u16 mode, const char *rolename, unsigned char **salt, -+ unsigned char **sum) -+{ -+ struct acl_role_label *r; -+ struct role_allowed_ip *ipp; -+ struct role_transition *trans; -+ unsigned int i; -+ int found = 0; -+ -+ /* check transition table */ -+ -+ for (trans = current->role->transitions; trans; trans = trans->next) { -+ if (!strcmp(rolename, trans->rolename)) { -+ found = 1; -+ break; -+ } -+ } -+ -+ if (!found) -+ return 0; -+ -+ /* handle special roles that do not require authentication -+ and check ip */ -+ -+ FOR_EACH_ROLE_START(r, i) -+ if (!strcmp(rolename, r->rolename) && -+ (r->roletype & GR_ROLE_SPECIAL)) { -+ found = 0; -+ if (r->allowed_ips != NULL) { -+ for (ipp = r->allowed_ips; ipp; ipp = ipp->next) { -+ if ((ntohl(current->signal->curr_ip) & ipp->netmask) == -+ (ntohl(ipp->addr) & ipp->netmask)) -+ found = 1; -+ } -+ } else -+ found = 2; -+ if (!found) -+ return 0; -+ -+ if (((mode == GR_SPROLE) && (r->roletype & GR_ROLE_NOPW)) || -+ ((mode == GR_SPROLEPAM) && (r->roletype & GR_ROLE_PAM))) { -+ *salt = NULL; -+ *sum = NULL; -+ return 1; -+ } -+ } -+ FOR_EACH_ROLE_END(r,i) -+ -+ for (i = 0; i < num_sprole_pws; i++) { -+ if (!strcmp(rolename, acl_special_roles[i]->rolename)) { -+ *salt = acl_special_roles[i]->salt; -+ *sum = acl_special_roles[i]->sum; -+ return 1; -+ } -+ } -+ -+ return 0; -+} -+ -+static void -+assign_special_role(char *rolename) -+{ -+ struct acl_object_label *obj; -+ struct acl_role_label *r; -+ struct acl_role_label *assigned = NULL; -+ struct task_struct *tsk; -+ struct file *filp; -+ unsigned int i; -+ -+ FOR_EACH_ROLE_START(r, i) -+ if (!strcmp(rolename, r->rolename) && -+ (r->roletype & GR_ROLE_SPECIAL)) -+ assigned = r; -+ FOR_EACH_ROLE_END(r,i) -+ -+ if (!assigned) -+ return; -+ -+ read_lock(&tasklist_lock); -+ read_lock(&grsec_exec_file_lock); -+ -+ tsk = current->parent; -+ if (tsk == NULL) -+ goto out_unlock; -+ -+ filp = tsk->exec_file; -+ if (filp == NULL) -+ goto out_unlock; -+ -+ tsk->is_writable = 0; -+ -+ tsk->acl_sp_role = 1; -+ tsk->acl_role_id = ++acl_sp_role_value; -+ tsk->role = assigned; -+ tsk->acl = chk_subj_label(filp->f_path.dentry, filp->f_path.mnt, tsk->role); -+ -+ /* ignore additional mmap checks for processes that are writable -+ by the default ACL */ -+ obj = chk_obj_label(filp->f_path.dentry, filp->f_path.mnt, default_role->root_label); -+ if (unlikely(obj->mode & GR_WRITE)) -+ tsk->is_writable = 1; -+ obj = chk_obj_label(filp->f_path.dentry, filp->f_path.mnt, tsk->role->root_label); -+ if (unlikely(obj->mode & GR_WRITE)) -+ tsk->is_writable = 1; -+ -+#ifdef CONFIG_GRKERNSEC_ACL_DEBUG -+ printk(KERN_ALERT "Assigning special role:%s subject:%s to process (%s:%d)\n", tsk->role->rolename, tsk->acl->filename, tsk->comm, tsk->pid); -+#endif -+ -+out_unlock: -+ read_unlock(&grsec_exec_file_lock); -+ read_unlock(&tasklist_lock); -+ return; -+} -+ -+int gr_check_secure_terminal(struct task_struct *task) -+{ -+ struct task_struct *p, *p2, *p3; -+ struct files_struct *files; -+ struct fdtable *fdt; -+ struct file *our_file = NULL, *file; -+ int i; -+ -+ if (task->signal->tty == NULL) -+ return 1; -+ -+ files = get_files_struct(task); -+ if (files != NULL) { -+ rcu_read_lock(); -+ fdt = files_fdtable(files); -+ for (i=0; i < fdt->max_fds; i++) { -+ file = fcheck_files(files, i); -+ if (file && (our_file == NULL) && (file->private_data == task->signal->tty)) { -+ get_file(file); -+ our_file = file; -+ } -+ } -+ rcu_read_unlock(); -+ put_files_struct(files); -+ } -+ -+ if (our_file == NULL) -+ return 1; -+ -+ read_lock(&tasklist_lock); -+ do_each_thread(p2, p) { -+ files = get_files_struct(p); -+ if (files == NULL || -+ (p->signal && p->signal->tty == task->signal->tty)) { -+ if (files != NULL) -+ put_files_struct(files); -+ continue; -+ } -+ rcu_read_lock(); -+ fdt = files_fdtable(files); -+ for (i=0; i < fdt->max_fds; i++) { -+ file = fcheck_files(files, i); -+ if (file && S_ISCHR(file->f_path.dentry->d_inode->i_mode) && -+ file->f_path.dentry->d_inode->i_rdev == our_file->f_path.dentry->d_inode->i_rdev) { -+ p3 = task; -+ while (p3->pid > 0) { -+ if (p3 == p) -+ break; -+ p3 = p3->parent; -+ } -+ if (p3 == p) -+ break; -+ gr_log_ttysniff(GR_DONT_AUDIT_GOOD, GR_TTYSNIFF_ACL_MSG, p); -+ gr_handle_alertkill(p); -+ rcu_read_unlock(); -+ put_files_struct(files); -+ read_unlock(&tasklist_lock); -+ fput(our_file); -+ return 0; -+ } -+ } -+ rcu_read_unlock(); -+ put_files_struct(files); -+ } while_each_thread(p2, p); -+ read_unlock(&tasklist_lock); -+ -+ fput(our_file); -+ return 1; -+} -+ -+ssize_t -+write_grsec_handler(struct file *file, const char * buf, size_t count, loff_t *ppos) -+{ -+ struct gr_arg_wrapper uwrap; -+ unsigned char *sprole_salt; -+ unsigned char *sprole_sum; -+ int error = sizeof (struct gr_arg_wrapper); -+ int error2 = 0; -+ -+ down(&gr_dev_sem); -+ -+ if ((gr_status & GR_READY) && !(current->acl->mode & GR_KERNELAUTH)) { -+ error = -EPERM; -+ goto out; -+ } -+ -+ if (count != sizeof (struct gr_arg_wrapper)) { -+ gr_log_int_int(GR_DONT_AUDIT_GOOD, GR_DEV_ACL_MSG, (int)count, (int)sizeof(struct gr_arg_wrapper)); -+ error = -EINVAL; -+ goto out; -+ } -+ -+ -+ if (gr_auth_expires && time_after_eq(get_seconds(), gr_auth_expires)) { -+ gr_auth_expires = 0; -+ gr_auth_attempts = 0; -+ } -+ -+ if (copy_from_user(&uwrap, buf, sizeof (struct gr_arg_wrapper))) { -+ error = -EFAULT; -+ goto out; -+ } -+ -+ if ((uwrap.version != GRSECURITY_VERSION) || (uwrap.size != sizeof(struct gr_arg))) { -+ error = -EINVAL; -+ goto out; -+ } -+ -+ if (copy_from_user(gr_usermode, uwrap.arg, sizeof (struct gr_arg))) { -+ error = -EFAULT; -+ goto out; -+ } -+ -+ if (gr_usermode->mode != GR_SPROLE && gr_usermode->mode != GR_SPROLEPAM && -+ gr_auth_attempts >= CONFIG_GRKERNSEC_ACL_MAXTRIES && -+ time_after(gr_auth_expires, get_seconds())) { -+ error = -EBUSY; -+ goto out; -+ } -+ -+ /* if non-root trying to do anything other than use a special role, -+ do not attempt authentication, do not count towards authentication -+ locking -+ */ -+ -+ if (gr_usermode->mode != GR_SPROLE && gr_usermode->mode != GR_STATUS && -+ gr_usermode->mode != GR_UNSPROLE && gr_usermode->mode != GR_SPROLEPAM && -+ current->uid) { -+ error = -EPERM; -+ goto out; -+ } -+ -+ /* ensure pw and special role name are null terminated */ -+ -+ gr_usermode->pw[GR_PW_LEN - 1] = '\0'; -+ gr_usermode->sp_role[GR_SPROLE_LEN - 1] = '\0'; -+ -+ /* Okay. -+ * We have our enough of the argument structure..(we have yet -+ * to copy_from_user the tables themselves) . Copy the tables -+ * only if we need them, i.e. for loading operations. */ -+ -+ switch (gr_usermode->mode) { -+ case GR_STATUS: -+ if (gr_status & GR_READY) { -+ error = 1; -+ if (!gr_check_secure_terminal(current)) -+ error = 3; -+ } else -+ error = 2; -+ goto out; -+ case GR_SHUTDOWN: -+ if ((gr_status & GR_READY) -+ && !(chkpw(gr_usermode, gr_system_salt, gr_system_sum))) { -+ gr_status &= ~GR_READY; -+ gr_log_noargs(GR_DONT_AUDIT_GOOD, GR_SHUTS_ACL_MSG); -+ free_variables(); -+ memset(gr_usermode, 0, sizeof (struct gr_arg)); -+ memset(gr_system_salt, 0, GR_SALT_LEN); -+ memset(gr_system_sum, 0, GR_SHA_LEN); -+ } else if (gr_status & GR_READY) { -+ gr_log_noargs(GR_DONT_AUDIT, GR_SHUTF_ACL_MSG); -+ error = -EPERM; -+ } else { -+ gr_log_noargs(GR_DONT_AUDIT_GOOD, GR_SHUTI_ACL_MSG); -+ error = -EAGAIN; -+ } -+ break; -+ case GR_ENABLE: -+ if (!(gr_status & GR_READY) && !(error2 = gracl_init(gr_usermode))) -+ gr_log_str(GR_DONT_AUDIT_GOOD, GR_ENABLE_ACL_MSG, GR_VERSION); -+ else { -+ if (gr_status & GR_READY) -+ error = -EAGAIN; -+ else -+ error = error2; -+ gr_log_str(GR_DONT_AUDIT, GR_ENABLEF_ACL_MSG, GR_VERSION); -+ } -+ break; -+ case GR_RELOAD: -+ if (!(gr_status & GR_READY)) { -+ gr_log_str(GR_DONT_AUDIT_GOOD, GR_RELOADI_ACL_MSG, GR_VERSION); -+ error = -EAGAIN; -+ } else if (!(chkpw(gr_usermode, gr_system_salt, gr_system_sum))) { -+ lock_kernel(); -+ gr_status &= ~GR_READY; -+ free_variables(); -+ if (!(error2 = gracl_init(gr_usermode))) { -+ unlock_kernel(); -+ gr_log_str(GR_DONT_AUDIT_GOOD, GR_RELOAD_ACL_MSG, GR_VERSION); -+ } else { -+ unlock_kernel(); -+ error = error2; -+ gr_log_str(GR_DONT_AUDIT, GR_RELOADF_ACL_MSG, GR_VERSION); -+ } -+ } else { -+ gr_log_str(GR_DONT_AUDIT, GR_RELOADF_ACL_MSG, GR_VERSION); -+ error = -EPERM; -+ } -+ break; -+ case GR_SEGVMOD: -+ if (unlikely(!(gr_status & GR_READY))) { -+ gr_log_noargs(GR_DONT_AUDIT_GOOD, GR_SEGVMODI_ACL_MSG); -+ error = -EAGAIN; -+ break; -+ } -+ -+ if (!(chkpw(gr_usermode, gr_system_salt, gr_system_sum))) { -+ gr_log_noargs(GR_DONT_AUDIT_GOOD, GR_SEGVMODS_ACL_MSG); -+ if (gr_usermode->segv_device && gr_usermode->segv_inode) { -+ struct acl_subject_label *segvacl; -+ segvacl = -+ lookup_acl_subj_label(gr_usermode->segv_inode, -+ gr_usermode->segv_device, -+ current->role); -+ if (segvacl) { -+ segvacl->crashes = 0; -+ segvacl->expires = 0; -+ } -+ } else if (gr_find_uid(gr_usermode->segv_uid) >= 0) { -+ gr_remove_uid(gr_usermode->segv_uid); -+ } -+ } else { -+ gr_log_noargs(GR_DONT_AUDIT, GR_SEGVMODF_ACL_MSG); -+ error = -EPERM; -+ } -+ break; -+ case GR_SPROLE: -+ case GR_SPROLEPAM: -+ if (unlikely(!(gr_status & GR_READY))) { -+ gr_log_noargs(GR_DONT_AUDIT_GOOD, GR_SPROLEI_ACL_MSG); -+ error = -EAGAIN; -+ break; -+ } -+ -+ if (current->role->expires && time_after_eq(get_seconds(), current->role->expires)) { -+ current->role->expires = 0; -+ current->role->auth_attempts = 0; -+ } -+ -+ if (current->role->auth_attempts >= CONFIG_GRKERNSEC_ACL_MAXTRIES && -+ time_after(current->role->expires, get_seconds())) { -+ error = -EBUSY; -+ goto out; -+ } -+ -+ if (lookup_special_role_auth -+ (gr_usermode->mode, gr_usermode->sp_role, &sprole_salt, &sprole_sum) -+ && ((!sprole_salt && !sprole_sum) -+ || !(chkpw(gr_usermode, sprole_salt, sprole_sum)))) { -+ char *p = ""; -+ assign_special_role(gr_usermode->sp_role); -+ read_lock(&tasklist_lock); -+ if (current->parent) -+ p = current->parent->role->rolename; -+ read_unlock(&tasklist_lock); -+ gr_log_str_int(GR_DONT_AUDIT_GOOD, GR_SPROLES_ACL_MSG, -+ p, acl_sp_role_value); -+ } else { -+ gr_log_str(GR_DONT_AUDIT, GR_SPROLEF_ACL_MSG, gr_usermode->sp_role); -+ error = -EPERM; -+ if(!(current->role->auth_attempts++)) -+ current->role->expires = get_seconds() + CONFIG_GRKERNSEC_ACL_TIMEOUT; -+ -+ goto out; -+ } -+ break; -+ case GR_UNSPROLE: -+ if (unlikely(!(gr_status & GR_READY))) { -+ gr_log_noargs(GR_DONT_AUDIT_GOOD, GR_UNSPROLEI_ACL_MSG); -+ error = -EAGAIN; -+ break; -+ } -+ -+ if (current->role->roletype & GR_ROLE_SPECIAL) { -+ char *p = ""; -+ int i = 0; -+ -+ read_lock(&tasklist_lock); -+ if (current->parent) { -+ p = current->parent->role->rolename; -+ i = current->parent->acl_role_id; -+ } -+ read_unlock(&tasklist_lock); -+ -+ gr_log_str_int(GR_DONT_AUDIT_GOOD, GR_UNSPROLES_ACL_MSG, p, i); -+ gr_set_acls(1); -+ } else { -+ gr_log_str(GR_DONT_AUDIT, GR_UNSPROLEF_ACL_MSG, current->role->rolename); -+ error = -EPERM; -+ goto out; -+ } -+ break; -+ default: -+ gr_log_int(GR_DONT_AUDIT, GR_INVMODE_ACL_MSG, gr_usermode->mode); -+ error = -EINVAL; -+ break; -+ } -+ -+ if (error != -EPERM) -+ goto out; -+ -+ if(!(gr_auth_attempts++)) -+ gr_auth_expires = get_seconds() + CONFIG_GRKERNSEC_ACL_TIMEOUT; -+ -+ out: -+ up(&gr_dev_sem); -+ return error; -+} -+ -+int -+gr_set_acls(const int type) -+{ -+ struct acl_object_label *obj; -+ struct task_struct *task, *task2; -+ struct file *filp; -+ struct acl_role_label *role = current->role; -+ __u16 acl_role_id = current->acl_role_id; -+ -+ read_lock(&tasklist_lock); -+ read_lock(&grsec_exec_file_lock); -+ do_each_thread(task2, task) { -+ /* check to see if we're called from the exit handler, -+ if so, only replace ACLs that have inherited the admin -+ ACL */ -+ -+ if (type && (task->role != role || -+ task->acl_role_id != acl_role_id)) -+ continue; -+ -+ task->acl_role_id = 0; -+ task->acl_sp_role = 0; -+ -+ if ((filp = task->exec_file)) { -+ task->role = lookup_acl_role_label(task, task->uid, task->gid); -+ -+ task->acl = -+ chk_subj_label(filp->f_path.dentry, filp->f_path.mnt, -+ task->role); -+ if (task->acl) { -+ struct acl_subject_label *curr; -+ curr = task->acl; -+ -+ task->is_writable = 0; -+ /* ignore additional mmap checks for processes that are writable -+ by the default ACL */ -+ obj = chk_obj_label(filp->f_path.dentry, filp->f_path.mnt, default_role->root_label); -+ if (unlikely(obj->mode & GR_WRITE)) -+ task->is_writable = 1; -+ obj = chk_obj_label(filp->f_path.dentry, filp->f_path.mnt, task->role->root_label); -+ if (unlikely(obj->mode & GR_WRITE)) -+ task->is_writable = 1; -+ -+ gr_set_proc_res(task); -+ -+#ifdef CONFIG_GRKERNSEC_ACL_DEBUG -+ printk(KERN_ALERT "gr_set_acls for (%s:%d): role:%s, subject:%s\n", task->comm, task->pid, task->role->rolename, task->acl->filename); -+#endif -+ } else { -+ read_unlock(&grsec_exec_file_lock); -+ read_unlock(&tasklist_lock); -+ gr_log_str_int(GR_DONT_AUDIT_GOOD, GR_DEFACL_MSG, task->comm, task->pid); -+ return 1; -+ } -+ } else { -+ // it's a kernel process -+ task->role = kernel_role; -+ task->acl = kernel_role->root_label; -+#ifdef CONFIG_GRKERNSEC_ACL_HIDEKERN -+ task->acl->mode &= ~GR_PROCFIND; -+#endif -+ } -+ } while_each_thread(task2, task); -+ read_unlock(&grsec_exec_file_lock); -+ read_unlock(&tasklist_lock); -+ return 0; -+} -+ -+void -+gr_learn_resource(const struct task_struct *task, -+ const int res, const unsigned long wanted, const int gt) -+{ -+ struct acl_subject_label *acl; -+ -+ if (unlikely((gr_status & GR_READY) && -+ task->acl && (task->acl->mode & (GR_LEARN | GR_INHERITLEARN)))) -+ goto skip_reslog; -+ -+#ifdef CONFIG_GRKERNSEC_RESLOG -+ gr_log_resource(task, res, wanted, gt); -+#endif -+ skip_reslog: -+ -+ if (unlikely(!(gr_status & GR_READY) || !wanted)) -+ return; -+ -+ acl = task->acl; -+ -+ if (likely(!acl || !(acl->mode & (GR_LEARN | GR_INHERITLEARN)) || -+ !(acl->resmask & (1 << (unsigned short) res)))) -+ return; -+ -+ if (wanted >= acl->res[res].rlim_cur) { -+ unsigned long res_add; -+ -+ res_add = wanted; -+ switch (res) { -+ case RLIMIT_CPU: -+ res_add += GR_RLIM_CPU_BUMP; -+ break; -+ case RLIMIT_FSIZE: -+ res_add += GR_RLIM_FSIZE_BUMP; -+ break; -+ case RLIMIT_DATA: -+ res_add += GR_RLIM_DATA_BUMP; -+ break; -+ case RLIMIT_STACK: -+ res_add += GR_RLIM_STACK_BUMP; -+ break; -+ case RLIMIT_CORE: -+ res_add += GR_RLIM_CORE_BUMP; -+ break; -+ case RLIMIT_RSS: -+ res_add += GR_RLIM_RSS_BUMP; -+ break; -+ case RLIMIT_NPROC: -+ res_add += GR_RLIM_NPROC_BUMP; -+ break; -+ case RLIMIT_NOFILE: -+ res_add += GR_RLIM_NOFILE_BUMP; -+ break; -+ case RLIMIT_MEMLOCK: -+ res_add += GR_RLIM_MEMLOCK_BUMP; -+ break; -+ case RLIMIT_AS: -+ res_add += GR_RLIM_AS_BUMP; -+ break; -+ case RLIMIT_LOCKS: -+ res_add += GR_RLIM_LOCKS_BUMP; -+ break; -+ } -+ -+ acl->res[res].rlim_cur = res_add; -+ -+ if (wanted > acl->res[res].rlim_max) -+ acl->res[res].rlim_max = res_add; -+ -+ security_learn(GR_LEARN_AUDIT_MSG, task->role->rolename, -+ task->role->roletype, acl->filename, -+ acl->res[res].rlim_cur, acl->res[res].rlim_max, -+ "", (unsigned long) res); -+ } -+ -+ return; -+} -+ -+#ifdef CONFIG_PAX_HAVE_ACL_FLAGS -+void -+pax_set_initial_flags(struct linux_binprm *bprm) -+{ -+ struct task_struct *task = current; -+ struct acl_subject_label *proc; -+ unsigned long flags; -+ -+ if (unlikely(!(gr_status & GR_READY))) -+ return; -+ -+ flags = pax_get_flags(task); -+ -+ proc = task->acl; -+ -+ if (proc->pax_flags & GR_PAX_DISABLE_PAGEEXEC) -+ flags &= ~MF_PAX_PAGEEXEC; -+ if (proc->pax_flags & GR_PAX_DISABLE_SEGMEXEC) -+ flags &= ~MF_PAX_SEGMEXEC; -+ if (proc->pax_flags & GR_PAX_DISABLE_RANDMMAP) -+ flags &= ~MF_PAX_RANDMMAP; -+ if (proc->pax_flags & GR_PAX_DISABLE_EMUTRAMP) -+ flags &= ~MF_PAX_EMUTRAMP; -+ if (proc->pax_flags & GR_PAX_DISABLE_MPROTECT) -+ flags &= ~MF_PAX_MPROTECT; -+ -+ if (proc->pax_flags & GR_PAX_ENABLE_PAGEEXEC) -+ flags |= MF_PAX_PAGEEXEC; -+ if (proc->pax_flags & GR_PAX_ENABLE_SEGMEXEC) -+ flags |= MF_PAX_SEGMEXEC; -+ if (proc->pax_flags & GR_PAX_ENABLE_RANDMMAP) -+ flags |= MF_PAX_RANDMMAP; -+ if (proc->pax_flags & GR_PAX_ENABLE_EMUTRAMP) -+ flags |= MF_PAX_EMUTRAMP; -+ if (proc->pax_flags & GR_PAX_ENABLE_MPROTECT) -+ flags |= MF_PAX_MPROTECT; -+ -+ pax_set_flags(task, flags); -+ -+ return; -+} -+#endif -+ -+#ifdef CONFIG_SYSCTL -+/* Eric Biederman likes breaking userland ABI and every inode-based security -+ system to save 35kb of memory */ -+ -+/* we modify the passed in filename, but adjust it back before returning */ -+static struct acl_object_label *gr_lookup_by_name(char *name, unsigned int len) -+{ -+ struct name_entry *nmatch; -+ char *p, *lastp = NULL; -+ struct acl_object_label *obj = NULL, *tmp; -+ struct acl_subject_label *tmpsubj; -+ char c = '\0'; -+ -+ read_lock(&gr_inode_lock); -+ -+ p = name + len - 1; -+ do { -+ nmatch = lookup_name_entry(name); -+ if (lastp != NULL) -+ *lastp = c; -+ -+ if (nmatch == NULL) -+ goto next_component; -+ tmpsubj = current->acl; -+ do { -+ obj = lookup_acl_obj_label(nmatch->inode, nmatch->device, tmpsubj); -+ if (obj != NULL) { -+ tmp = obj->globbed; -+ while (tmp) { -+ if (!glob_match(tmp->filename, name)) { -+ obj = tmp; -+ goto found_obj; -+ } -+ tmp = tmp->next; -+ } -+ goto found_obj; -+ } -+ } while ((tmpsubj = tmpsubj->parent_subject)); -+next_component: -+ /* end case */ -+ if (p == name) -+ break; -+ -+ while (*p != '/') -+ p--; -+ if (p == name) -+ lastp = p + 1; -+ else { -+ lastp = p; -+ p--; -+ } -+ c = *lastp; -+ *lastp = '\0'; -+ } while (1); -+found_obj: -+ read_unlock(&gr_inode_lock); -+ /* obj returned will always be non-null */ -+ return obj; -+} -+ -+/* returns 0 when allowing, non-zero on error -+ op of 0 is used for readdir, so we don't log the names of hidden files -+*/ -+__u32 -+gr_handle_sysctl(const struct ctl_table *table, const int op) -+{ -+ ctl_table *tmp; -+ const char *proc_sys = "/proc/sys"; -+ char *path; -+ struct acl_object_label *obj; -+ unsigned short len = 0, pos = 0, depth = 0, i; -+ __u32 err = 0; -+ __u32 mode = 0; -+ -+ if (unlikely(!(gr_status & GR_READY))) -+ return 0; -+ -+ /* for now, ignore operations on non-sysctl entries if it's not a -+ readdir*/ -+ if (table->child != NULL && op != 0) -+ return 0; -+ -+ mode |= GR_FIND; -+ /* it's only a read if it's an entry, read on dirs is for readdir */ -+ if (op & MAY_READ) -+ mode |= GR_READ; -+ if (op & MAY_WRITE) -+ mode |= GR_WRITE; -+ -+ preempt_disable(); -+ -+ path = per_cpu_ptr(gr_shared_page[0], smp_processor_id()); -+ -+ /* it's only a read/write if it's an actual entry, not a dir -+ (which are opened for readdir) -+ */ -+ -+ /* convert the requested sysctl entry into a pathname */ -+ -+ for (tmp = (ctl_table *)table; tmp != NULL; tmp = tmp->parent) { -+ len += strlen(tmp->procname); -+ len++; -+ depth++; -+ } -+ -+ if ((len + depth + strlen(proc_sys) + 1) > PAGE_SIZE) { -+ /* deny */ -+ goto out; -+ } -+ -+ memset(path, 0, PAGE_SIZE); -+ -+ memcpy(path, proc_sys, strlen(proc_sys)); -+ -+ pos += strlen(proc_sys); -+ -+ for (; depth > 0; depth--) { -+ path[pos] = '/'; -+ pos++; -+ for (i = 1, tmp = (ctl_table *)table; tmp != NULL; tmp = tmp->parent) { -+ if (depth == i) { -+ memcpy(path + pos, tmp->procname, -+ strlen(tmp->procname)); -+ pos += strlen(tmp->procname); -+ } -+ i++; -+ } -+ } -+ -+ obj = gr_lookup_by_name(path, pos); -+ err = obj->mode & (mode | to_gr_audit(mode) | GR_SUPPRESS); -+ -+ if (unlikely((current->acl->mode & (GR_LEARN | GR_INHERITLEARN)) && -+ ((err & mode) != mode))) { -+ __u32 new_mode = mode; -+ -+ new_mode &= ~(GR_AUDITS | GR_SUPPRESS); -+ -+ err = 0; -+ gr_log_learn_sysctl(current, path, new_mode); -+ } else if (!(err & GR_FIND) && !(err & GR_SUPPRESS) && op != 0) { -+ gr_log_hidden_sysctl(GR_DONT_AUDIT, GR_HIDDEN_ACL_MSG, path); -+ err = -ENOENT; -+ } else if (!(err & GR_FIND)) { -+ err = -ENOENT; -+ } else if (((err & mode) & ~GR_FIND) != (mode & ~GR_FIND) && !(err & GR_SUPPRESS)) { -+ gr_log_str4(GR_DONT_AUDIT, GR_SYSCTL_ACL_MSG, "denied", -+ path, (mode & GR_READ) ? " reading" : "", -+ (mode & GR_WRITE) ? " writing" : ""); -+ err = -EACCES; -+ } else if ((err & mode) != mode) { -+ err = -EACCES; -+ } else if ((((err & mode) & ~GR_FIND) == (mode & ~GR_FIND)) && (err & GR_AUDITS)) { -+ gr_log_str4(GR_DO_AUDIT, GR_SYSCTL_ACL_MSG, "successful", -+ path, (mode & GR_READ) ? " reading" : "", -+ (mode & GR_WRITE) ? " writing" : ""); -+ err = 0; -+ } else -+ err = 0; -+ -+ out: -+ preempt_enable(); -+ -+ return err; -+} -+#endif -+ -+int -+gr_handle_proc_ptrace(struct task_struct *task) -+{ -+ struct file *filp; -+ struct task_struct *tmp = task; -+ struct task_struct *curtemp = current; -+ __u32 retmode; -+ -+ if (unlikely(!(gr_status & GR_READY))) -+ return 0; -+ -+ read_lock(&tasklist_lock); -+ read_lock(&grsec_exec_file_lock); -+ filp = task->exec_file; -+ -+ while (tmp->pid > 0) { -+ if (tmp == curtemp) -+ break; -+ tmp = tmp->parent; -+ } -+ -+ if (!filp || (tmp->pid == 0 && !(current->acl->mode & GR_RELAXPTRACE))) { -+ read_unlock(&grsec_exec_file_lock); -+ read_unlock(&tasklist_lock); -+ return 1; -+ } -+ -+ retmode = gr_search_file(filp->f_path.dentry, GR_NOPTRACE, filp->f_path.mnt); -+ read_unlock(&grsec_exec_file_lock); -+ read_unlock(&tasklist_lock); -+ -+ if (retmode & GR_NOPTRACE) -+ return 1; -+ -+ if (!(current->acl->mode & GR_POVERRIDE) && !(current->role->roletype & GR_ROLE_GOD) -+ && (current->acl != task->acl || (current->acl != current->role->root_label -+ && current->pid != task->pid))) -+ return 1; -+ -+ return 0; -+} -+ -+int -+gr_handle_ptrace(struct task_struct *task, const long request) -+{ -+ struct task_struct *tmp = task; -+ struct task_struct *curtemp = current; -+ __u32 retmode; -+ -+ if (unlikely(!(gr_status & GR_READY))) -+ return 0; -+ -+ read_lock(&tasklist_lock); -+ while (tmp->pid > 0) { -+ if (tmp == curtemp) -+ break; -+ tmp = tmp->parent; -+ } -+ -+ if (tmp->pid == 0 && !(current->acl->mode & GR_RELAXPTRACE)) { -+ read_unlock(&tasklist_lock); -+ gr_log_ptrace(GR_DONT_AUDIT, GR_PTRACE_ACL_MSG, task); -+ return 1; -+ } -+ read_unlock(&tasklist_lock); -+ -+ read_lock(&grsec_exec_file_lock); -+ if (unlikely(!task->exec_file)) { -+ read_unlock(&grsec_exec_file_lock); -+ return 0; -+ } -+ -+ retmode = gr_search_file(task->exec_file->f_path.dentry, GR_PTRACERD | GR_NOPTRACE, task->exec_file->f_path.mnt); -+ read_unlock(&grsec_exec_file_lock); -+ -+ if (retmode & GR_NOPTRACE) { -+ gr_log_ptrace(GR_DONT_AUDIT, GR_PTRACE_ACL_MSG, task); -+ return 1; -+ } -+ -+ if (retmode & GR_PTRACERD) { -+ switch (request) { -+ case PTRACE_POKETEXT: -+ case PTRACE_POKEDATA: -+ case PTRACE_POKEUSR: -+#if !defined(CONFIG_PPC32) && !defined(CONFIG_PPC64) && !defined(CONFIG_PARISC) && !defined(CONFIG_ALPHA) && !defined(CONFIG_IA64) -+ case PTRACE_SETREGS: -+ case PTRACE_SETFPREGS: -+#endif -+#ifdef CONFIG_X86 -+ case PTRACE_SETFPXREGS: -+#endif -+#ifdef CONFIG_ALTIVEC -+ case PTRACE_SETVRREGS: -+#endif -+ return 1; -+ default: -+ return 0; -+ } -+ } else if (!(current->acl->mode & GR_POVERRIDE) && -+ !(current->role->roletype & GR_ROLE_GOD) && -+ (current->acl != task->acl)) { -+ gr_log_ptrace(GR_DONT_AUDIT, GR_PTRACE_ACL_MSG, task); -+ return 1; -+ } -+ -+ return 0; -+} -+ -+static int is_writable_mmap(const struct file *filp) -+{ -+ struct task_struct *task = current; -+ struct acl_object_label *obj, *obj2; -+ -+ if (gr_status & GR_READY && !(task->acl->mode & GR_OVERRIDE) && -+ !task->is_writable && S_ISREG(filp->f_path.dentry->d_inode->i_mode)) { -+ obj = chk_obj_label(filp->f_path.dentry, filp->f_path.mnt, default_role->root_label); -+ obj2 = chk_obj_label(filp->f_path.dentry, filp->f_path.mnt, -+ task->role->root_label); -+ if (unlikely((obj->mode & GR_WRITE) || (obj2->mode & GR_WRITE))) { -+ gr_log_fs_generic(GR_DONT_AUDIT, GR_WRITLIB_ACL_MSG, filp->f_path.dentry, filp->f_path.mnt); -+ return 1; -+ } -+ } -+ return 0; -+} -+ -+int -+gr_acl_handle_mmap(const struct file *file, const unsigned long prot) -+{ -+ __u32 mode; -+ -+ if (unlikely(!file || !(prot & PROT_EXEC))) -+ return 1; -+ -+ if (is_writable_mmap(file)) -+ return 0; -+ -+ mode = -+ gr_search_file(file->f_path.dentry, -+ GR_EXEC | GR_AUDIT_EXEC | GR_SUPPRESS, -+ file->f_path.mnt); -+ -+ if (!gr_tpe_allow(file)) -+ return 0; -+ -+ if (unlikely(!(mode & GR_EXEC) && !(mode & GR_SUPPRESS))) { -+ gr_log_fs_rbac_generic(GR_DONT_AUDIT, GR_MMAP_ACL_MSG, file->f_path.dentry, file->f_path.mnt); -+ return 0; -+ } else if (unlikely(!(mode & GR_EXEC))) { -+ return 0; -+ } else if (unlikely(mode & GR_EXEC && mode & GR_AUDIT_EXEC)) { -+ gr_log_fs_rbac_generic(GR_DO_AUDIT, GR_MMAP_ACL_MSG, file->f_path.dentry, file->f_path.mnt); -+ return 1; -+ } -+ -+ return 1; -+} -+ -+int -+gr_acl_handle_mprotect(const struct file *file, const unsigned long prot) -+{ -+ __u32 mode; -+ -+ if (unlikely(!file || !(prot & PROT_EXEC))) -+ return 1; -+ -+ if (is_writable_mmap(file)) -+ return 0; -+ -+ mode = -+ gr_search_file(file->f_path.dentry, -+ GR_EXEC | GR_AUDIT_EXEC | GR_SUPPRESS, -+ file->f_path.mnt); -+ -+ if (!gr_tpe_allow(file)) -+ return 0; -+ -+ if (unlikely(!(mode & GR_EXEC) && !(mode & GR_SUPPRESS))) { -+ gr_log_fs_rbac_generic(GR_DONT_AUDIT, GR_MPROTECT_ACL_MSG, file->f_path.dentry, file->f_path.mnt); -+ return 0; -+ } else if (unlikely(!(mode & GR_EXEC))) { -+ return 0; -+ } else if (unlikely(mode & GR_EXEC && mode & GR_AUDIT_EXEC)) { -+ gr_log_fs_rbac_generic(GR_DO_AUDIT, GR_MPROTECT_ACL_MSG, file->f_path.dentry, file->f_path.mnt); -+ return 1; -+ } -+ -+ return 1; -+} -+ -+void -+gr_acl_handle_psacct(struct task_struct *task, const long code) -+{ -+ unsigned long runtime; -+ unsigned long cputime; -+ unsigned int wday, cday; -+ __u8 whr, chr; -+ __u8 wmin, cmin; -+ __u8 wsec, csec; -+ struct timespec timeval; -+ -+ if (unlikely(!(gr_status & GR_READY) || !task->acl || -+ !(task->acl->mode & GR_PROCACCT))) -+ return; -+ -+ do_posix_clock_monotonic_gettime(&timeval); -+ runtime = timeval.tv_sec - task->start_time.tv_sec; -+ wday = runtime / (3600 * 24); -+ runtime -= wday * (3600 * 24); -+ whr = runtime / 3600; -+ runtime -= whr * 3600; -+ wmin = runtime / 60; -+ runtime -= wmin * 60; -+ wsec = runtime; -+ -+ cputime = (task->utime + task->stime) / HZ; -+ cday = cputime / (3600 * 24); -+ cputime -= cday * (3600 * 24); -+ chr = cputime / 3600; -+ cputime -= chr * 3600; -+ cmin = cputime / 60; -+ cputime -= cmin * 60; -+ csec = cputime; -+ -+ gr_log_procacct(GR_DO_AUDIT, GR_ACL_PROCACCT_MSG, task, wday, whr, wmin, wsec, cday, chr, cmin, csec, code); -+ -+ return; -+} -+ -+void gr_set_kernel_label(struct task_struct *task) -+{ -+ if (gr_status & GR_READY) { -+ task->role = kernel_role; -+ task->acl = kernel_role->root_label; -+ } -+ return; -+} -+ -+int gr_acl_handle_filldir(const struct file *file, const char *name, const unsigned int namelen, const ino_t ino) -+{ -+ struct task_struct *task = current; -+ struct dentry *dentry = file->f_path.dentry; -+ struct vfsmount *mnt = file->f_path.mnt; -+ struct acl_object_label *obj, *tmp; -+ struct acl_subject_label *subj; -+ unsigned int bufsize; -+ int is_not_root; -+ char *path; -+ -+ if (unlikely(!(gr_status & GR_READY))) -+ return 1; -+ -+ if (task->acl->mode & (GR_LEARN | GR_INHERITLEARN)) -+ return 1; -+ -+ /* ignore Eric Biederman */ -+ if (IS_PRIVATE(dentry->d_inode)) -+ return 1; -+ -+ subj = task->acl; -+ do { -+ obj = lookup_acl_obj_label(ino, dentry->d_inode->i_sb->s_dev, subj); -+ if (obj != NULL) -+ return (obj->mode & GR_FIND) ? 1 : 0; -+ } while ((subj = subj->parent_subject)); -+ -+ obj = chk_obj_label(dentry, mnt, task->acl); -+ if (obj->globbed == NULL) -+ return (obj->mode & GR_FIND) ? 1 : 0; -+ -+ is_not_root = ((obj->filename[0] == '/') && -+ (obj->filename[1] == '\0')) ? 0 : 1; -+ bufsize = PAGE_SIZE - namelen - is_not_root; -+ -+ /* check bufsize > PAGE_SIZE || bufsize == 0 */ -+ if (unlikely((bufsize - 1) > (PAGE_SIZE - 1))) -+ return 1; -+ -+ preempt_disable(); -+ path = d_real_path(dentry, mnt, per_cpu_ptr(gr_shared_page[0], smp_processor_id()), -+ bufsize); -+ -+ bufsize = strlen(path); -+ -+ /* if base is "/", don't append an additional slash */ -+ if (is_not_root) -+ *(path + bufsize) = '/'; -+ memcpy(path + bufsize + is_not_root, name, namelen); -+ *(path + bufsize + namelen + is_not_root) = '\0'; -+ -+ tmp = obj->globbed; -+ while (tmp) { -+ if (!glob_match(tmp->filename, path)) { -+ preempt_enable(); -+ return (tmp->mode & GR_FIND) ? 1 : 0; -+ } -+ tmp = tmp->next; -+ } -+ preempt_enable(); -+ return (obj->mode & GR_FIND) ? 1 : 0; -+} -+ -+EXPORT_SYMBOL(gr_learn_resource); -+EXPORT_SYMBOL(gr_set_kernel_label); -+#ifdef CONFIG_SECURITY -+EXPORT_SYMBOL(gr_check_user_change); -+EXPORT_SYMBOL(gr_check_group_change); -+#endif -+ -diff -urNp linux-2.6.28.8/grsecurity/gracl_cap.c linux-2.6.28.8/grsecurity/gracl_cap.c ---- linux-2.6.28.8/grsecurity/gracl_cap.c 1969-12-31 19:00:00.000000000 -0500 -+++ linux-2.6.28.8/grsecurity/gracl_cap.c 2009-02-21 09:37:49.000000000 -0500 -@@ -0,0 +1,129 @@ -+#include <linux/kernel.h> -+#include <linux/module.h> -+#include <linux/sched.h> -+#include <linux/gracl.h> -+#include <linux/grsecurity.h> -+#include <linux/grinternal.h> -+ -+static const char *captab_log[] = { -+ "CAP_CHOWN", -+ "CAP_DAC_OVERRIDE", -+ "CAP_DAC_READ_SEARCH", -+ "CAP_FOWNER", -+ "CAP_FSETID", -+ "CAP_KILL", -+ "CAP_SETGID", -+ "CAP_SETUID", -+ "CAP_SETPCAP", -+ "CAP_LINUX_IMMUTABLE", -+ "CAP_NET_BIND_SERVICE", -+ "CAP_NET_BROADCAST", -+ "CAP_NET_ADMIN", -+ "CAP_NET_RAW", -+ "CAP_IPC_LOCK", -+ "CAP_IPC_OWNER", -+ "CAP_SYS_MODULE", -+ "CAP_SYS_RAWIO", -+ "CAP_SYS_CHROOT", -+ "CAP_SYS_PTRACE", -+ "CAP_SYS_PACCT", -+ "CAP_SYS_ADMIN", -+ "CAP_SYS_BOOT", -+ "CAP_SYS_NICE", -+ "CAP_SYS_RESOURCE", -+ "CAP_SYS_TIME", -+ "CAP_SYS_TTY_CONFIG", -+ "CAP_MKNOD", -+ "CAP_LEASE", -+ "CAP_AUDIT_WRITE", -+ "CAP_AUDIT_CONTROL", -+ "CAP_SETFCAP", -+ "CAP_MAC_OVERRIDE", -+ "CAP_MAC_ADMIN" -+}; -+ -+EXPORT_SYMBOL(gr_task_is_capable); -+EXPORT_SYMBOL(gr_is_capable_nolog); -+ -+int -+gr_task_is_capable(struct task_struct *task, const int cap) -+{ -+ struct acl_subject_label *curracl; -+ kernel_cap_t cap_drop = __cap_empty_set, cap_mask = __cap_empty_set; -+ -+ if (!gr_acl_is_enabled()) -+ return 1; -+ -+ curracl = task->acl; -+ -+ cap_drop = curracl->cap_lower; -+ cap_mask = curracl->cap_mask; -+ -+ while ((curracl = curracl->parent_subject)) { -+ /* if the cap isn't specified in the current computed mask but is specified in the -+ current level subject, and is lowered in the current level subject, then add -+ it to the set of dropped capabilities -+ otherwise, add the current level subject's mask to the current computed mask -+ */ -+ if (!cap_raised(cap_mask, cap) && cap_raised(curracl->cap_mask, cap)) { -+ cap_raise(cap_mask, cap); -+ if (cap_raised(curracl->cap_lower, cap)) -+ cap_raise(cap_drop, cap); -+ } -+ } -+ -+ if (!cap_raised(cap_drop, cap)) -+ return 1; -+ -+ curracl = task->acl; -+ -+ if ((curracl->mode & (GR_LEARN | GR_INHERITLEARN)) -+ && cap_raised(task->cap_effective, cap)) { -+ security_learn(GR_LEARN_AUDIT_MSG, task->role->rolename, -+ task->role->roletype, task->uid, -+ task->gid, task->exec_file ? -+ gr_to_filename(task->exec_file->f_path.dentry, -+ task->exec_file->f_path.mnt) : curracl->filename, -+ curracl->filename, 0UL, -+ 0UL, "", (unsigned long) cap, NIPQUAD(task->signal->curr_ip)); -+ return 1; -+ } -+ -+ if ((cap >= 0) && (cap < (sizeof(captab_log)/sizeof(captab_log[0]))) && cap_raised(task->cap_effective, cap)) -+ gr_log_cap(GR_DONT_AUDIT, GR_CAP_ACL_MSG, task, captab_log[cap]); -+ return 0; -+} -+ -+int -+gr_is_capable_nolog(const int cap) -+{ -+ struct acl_subject_label *curracl; -+ kernel_cap_t cap_drop = __cap_empty_set, cap_mask = __cap_empty_set; -+ -+ if (!gr_acl_is_enabled()) -+ return 1; -+ -+ curracl = current->acl; -+ -+ cap_drop = curracl->cap_lower; -+ cap_mask = curracl->cap_mask; -+ -+ while ((curracl = curracl->parent_subject)) { -+ /* if the cap isn't specified in the current computed mask but is specified in the -+ current level subject, and is lowered in the current level subject, then add -+ it to the set of dropped capabilities -+ otherwise, add the current level subject's mask to the current computed mask -+ */ -+ if (!cap_raised(cap_mask, cap) && cap_raised(curracl->cap_mask, cap)) { -+ cap_raise(cap_mask, cap); -+ if (cap_raised(curracl->cap_lower, cap)) -+ cap_raise(cap_drop, cap); -+ } -+ } -+ -+ if (!cap_raised(cap_drop, cap)) -+ return 1; -+ -+ return 0; -+} -+ -diff -urNp linux-2.6.28.8/grsecurity/gracl_fs.c linux-2.6.28.8/grsecurity/gracl_fs.c ---- linux-2.6.28.8/grsecurity/gracl_fs.c 1969-12-31 19:00:00.000000000 -0500 -+++ linux-2.6.28.8/grsecurity/gracl_fs.c 2009-02-21 09:37:49.000000000 -0500 -@@ -0,0 +1,423 @@ -+#include <linux/kernel.h> -+#include <linux/sched.h> -+#include <linux/types.h> -+#include <linux/fs.h> -+#include <linux/file.h> -+#include <linux/stat.h> -+#include <linux/grsecurity.h> -+#include <linux/grinternal.h> -+#include <linux/gracl.h> -+ -+__u32 -+gr_acl_handle_hidden_file(const struct dentry * dentry, -+ const struct vfsmount * mnt) -+{ -+ __u32 mode; -+ -+ if (unlikely(!dentry->d_inode)) -+ return GR_FIND; -+ -+ mode = -+ gr_search_file(dentry, GR_FIND | GR_AUDIT_FIND | GR_SUPPRESS, mnt); -+ -+ if (unlikely(mode & GR_FIND && mode & GR_AUDIT_FIND)) { -+ gr_log_fs_rbac_generic(GR_DO_AUDIT, GR_HIDDEN_ACL_MSG, dentry, mnt); -+ return mode; -+ } else if (unlikely(!(mode & GR_FIND) && !(mode & GR_SUPPRESS))) { -+ gr_log_fs_rbac_generic(GR_DONT_AUDIT, GR_HIDDEN_ACL_MSG, dentry, mnt); -+ return 0; -+ } else if (unlikely(!(mode & GR_FIND))) -+ return 0; -+ -+ return GR_FIND; -+} -+ -+__u32 -+gr_acl_handle_open(const struct dentry * dentry, const struct vfsmount * mnt, -+ const int fmode) -+{ -+ __u32 reqmode = GR_FIND; -+ __u32 mode; -+ -+ if (unlikely(!dentry->d_inode)) -+ return reqmode; -+ -+ if (unlikely(fmode & O_APPEND)) -+ reqmode |= GR_APPEND; -+ else if (unlikely(fmode & FMODE_WRITE)) -+ reqmode |= GR_WRITE; -+ if (likely((fmode & FMODE_READ) && !(fmode & O_DIRECTORY))) -+ reqmode |= GR_READ; -+ -+ mode = -+ gr_search_file(dentry, reqmode | to_gr_audit(reqmode) | GR_SUPPRESS, -+ mnt); -+ -+ if (unlikely(((mode & reqmode) == reqmode) && mode & GR_AUDITS)) { -+ gr_log_fs_rbac_mode2(GR_DO_AUDIT, GR_OPEN_ACL_MSG, dentry, mnt, -+ reqmode & GR_READ ? " reading" : "", -+ reqmode & GR_WRITE ? " writing" : reqmode & -+ GR_APPEND ? " appending" : ""); -+ return reqmode; -+ } else -+ if (unlikely((mode & reqmode) != reqmode && !(mode & GR_SUPPRESS))) -+ { -+ gr_log_fs_rbac_mode2(GR_DONT_AUDIT, GR_OPEN_ACL_MSG, dentry, mnt, -+ reqmode & GR_READ ? " reading" : "", -+ reqmode & GR_WRITE ? " writing" : reqmode & -+ GR_APPEND ? " appending" : ""); -+ return 0; -+ } else if (unlikely((mode & reqmode) != reqmode)) -+ return 0; -+ -+ return reqmode; -+} -+ -+__u32 -+gr_acl_handle_creat(const struct dentry * dentry, -+ const struct dentry * p_dentry, -+ const struct vfsmount * p_mnt, const int fmode, -+ const int imode) -+{ -+ __u32 reqmode = GR_WRITE | GR_CREATE; -+ __u32 mode; -+ -+ if (unlikely(fmode & O_APPEND)) -+ reqmode |= GR_APPEND; -+ if (unlikely((fmode & FMODE_READ) && !(fmode & O_DIRECTORY))) -+ reqmode |= GR_READ; -+ if (unlikely((fmode & O_CREAT) && (imode & (S_ISUID | S_ISGID)))) -+ reqmode |= GR_SETID; -+ -+ mode = -+ gr_check_create(dentry, p_dentry, p_mnt, -+ reqmode | to_gr_audit(reqmode) | GR_SUPPRESS); -+ -+ if (unlikely(((mode & reqmode) == reqmode) && mode & GR_AUDITS)) { -+ gr_log_fs_rbac_mode2(GR_DO_AUDIT, GR_CREATE_ACL_MSG, dentry, p_mnt, -+ reqmode & GR_READ ? " reading" : "", -+ reqmode & GR_WRITE ? " writing" : reqmode & -+ GR_APPEND ? " appending" : ""); -+ return reqmode; -+ } else -+ if (unlikely((mode & reqmode) != reqmode && !(mode & GR_SUPPRESS))) -+ { -+ gr_log_fs_rbac_mode2(GR_DONT_AUDIT, GR_CREATE_ACL_MSG, dentry, p_mnt, -+ reqmode & GR_READ ? " reading" : "", -+ reqmode & GR_WRITE ? " writing" : reqmode & -+ GR_APPEND ? " appending" : ""); -+ return 0; -+ } else if (unlikely((mode & reqmode) != reqmode)) -+ return 0; -+ -+ return reqmode; -+} -+ -+__u32 -+gr_acl_handle_access(const struct dentry * dentry, const struct vfsmount * mnt, -+ const int fmode) -+{ -+ __u32 mode, reqmode = GR_FIND; -+ -+ if ((fmode & S_IXOTH) && !S_ISDIR(dentry->d_inode->i_mode)) -+ reqmode |= GR_EXEC; -+ if (fmode & S_IWOTH) -+ reqmode |= GR_WRITE; -+ if (fmode & S_IROTH) -+ reqmode |= GR_READ; -+ -+ mode = -+ gr_search_file(dentry, reqmode | to_gr_audit(reqmode) | GR_SUPPRESS, -+ mnt); -+ -+ if (unlikely(((mode & reqmode) == reqmode) && mode & GR_AUDITS)) { -+ gr_log_fs_rbac_mode3(GR_DO_AUDIT, GR_ACCESS_ACL_MSG, dentry, mnt, -+ reqmode & GR_READ ? " reading" : "", -+ reqmode & GR_WRITE ? " writing" : "", -+ reqmode & GR_EXEC ? " executing" : ""); -+ return reqmode; -+ } else -+ if (unlikely((mode & reqmode) != reqmode && !(mode & GR_SUPPRESS))) -+ { -+ gr_log_fs_rbac_mode3(GR_DONT_AUDIT, GR_ACCESS_ACL_MSG, dentry, mnt, -+ reqmode & GR_READ ? " reading" : "", -+ reqmode & GR_WRITE ? " writing" : "", -+ reqmode & GR_EXEC ? " executing" : ""); -+ return 0; -+ } else if (unlikely((mode & reqmode) != reqmode)) -+ return 0; -+ -+ return reqmode; -+} -+ -+static __u32 generic_fs_handler(const struct dentry *dentry, const struct vfsmount *mnt, __u32 reqmode, const char *fmt) -+{ -+ __u32 mode; -+ -+ mode = gr_search_file(dentry, reqmode | to_gr_audit(reqmode) | GR_SUPPRESS, mnt); -+ -+ if (unlikely(((mode & (reqmode)) == (reqmode)) && mode & GR_AUDITS)) { -+ gr_log_fs_rbac_generic(GR_DO_AUDIT, fmt, dentry, mnt); -+ return mode; -+ } else if (unlikely((mode & (reqmode)) != (reqmode) && !(mode & GR_SUPPRESS))) { -+ gr_log_fs_rbac_generic(GR_DONT_AUDIT, fmt, dentry, mnt); -+ return 0; -+ } else if (unlikely((mode & (reqmode)) != (reqmode))) -+ return 0; -+ -+ return (reqmode); -+} -+ -+__u32 -+gr_acl_handle_rmdir(const struct dentry * dentry, const struct vfsmount * mnt) -+{ -+ return generic_fs_handler(dentry, mnt, GR_WRITE | GR_DELETE , GR_RMDIR_ACL_MSG); -+} -+ -+__u32 -+gr_acl_handle_unlink(const struct dentry *dentry, const struct vfsmount *mnt) -+{ -+ return generic_fs_handler(dentry, mnt, GR_WRITE | GR_DELETE , GR_UNLINK_ACL_MSG); -+} -+ -+__u32 -+gr_acl_handle_truncate(const struct dentry *dentry, const struct vfsmount *mnt) -+{ -+ return generic_fs_handler(dentry, mnt, GR_WRITE, GR_TRUNCATE_ACL_MSG); -+} -+ -+__u32 -+gr_acl_handle_utime(const struct dentry *dentry, const struct vfsmount *mnt) -+{ -+ return generic_fs_handler(dentry, mnt, GR_WRITE, GR_ATIME_ACL_MSG); -+} -+ -+__u32 -+gr_acl_handle_fchmod(const struct dentry *dentry, const struct vfsmount *mnt, -+ mode_t mode) -+{ -+ if (unlikely(dentry->d_inode && S_ISSOCK(dentry->d_inode->i_mode))) -+ return 1; -+ -+ if (unlikely((mode != (mode_t)-1) && (mode & (S_ISUID | S_ISGID)))) { -+ return generic_fs_handler(dentry, mnt, GR_WRITE | GR_SETID, -+ GR_FCHMOD_ACL_MSG); -+ } else { -+ return generic_fs_handler(dentry, mnt, GR_WRITE, GR_FCHMOD_ACL_MSG); -+ } -+} -+ -+__u32 -+gr_acl_handle_chmod(const struct dentry *dentry, const struct vfsmount *mnt, -+ mode_t mode) -+{ -+ if (unlikely((mode != (mode_t)-1) && (mode & (S_ISUID | S_ISGID)))) { -+ return generic_fs_handler(dentry, mnt, GR_WRITE | GR_SETID, -+ GR_CHMOD_ACL_MSG); -+ } else { -+ return generic_fs_handler(dentry, mnt, GR_WRITE, GR_CHMOD_ACL_MSG); -+ } -+} -+ -+__u32 -+gr_acl_handle_chown(const struct dentry *dentry, const struct vfsmount *mnt) -+{ -+ return generic_fs_handler(dentry, mnt, GR_WRITE, GR_CHOWN_ACL_MSG); -+} -+ -+__u32 -+gr_acl_handle_execve(const struct dentry *dentry, const struct vfsmount *mnt) -+{ -+ return generic_fs_handler(dentry, mnt, GR_EXEC, GR_EXEC_ACL_MSG); -+} -+ -+__u32 -+gr_acl_handle_unix(const struct dentry *dentry, const struct vfsmount *mnt) -+{ -+ return generic_fs_handler(dentry, mnt, GR_READ | GR_WRITE, -+ GR_UNIXCONNECT_ACL_MSG); -+} -+ -+/* hardlinks require at minimum create permission, -+ any additional privilege required is based on the -+ privilege of the file being linked to -+*/ -+__u32 -+gr_acl_handle_link(const struct dentry * new_dentry, -+ const struct dentry * parent_dentry, -+ const struct vfsmount * parent_mnt, -+ const struct dentry * old_dentry, -+ const struct vfsmount * old_mnt, const char *to) -+{ -+ __u32 mode; -+ __u32 needmode = GR_CREATE | GR_LINK; -+ __u32 needaudit = GR_AUDIT_CREATE | GR_AUDIT_LINK; -+ -+ mode = -+ gr_check_link(new_dentry, parent_dentry, parent_mnt, old_dentry, -+ old_mnt); -+ -+ if (unlikely(((mode & needmode) == needmode) && (mode & needaudit))) { -+ gr_log_fs_rbac_str(GR_DO_AUDIT, GR_LINK_ACL_MSG, old_dentry, old_mnt, to); -+ return mode; -+ } else if (unlikely(((mode & needmode) != needmode) && !(mode & GR_SUPPRESS))) { -+ gr_log_fs_rbac_str(GR_DONT_AUDIT, GR_LINK_ACL_MSG, old_dentry, old_mnt, to); -+ return 0; -+ } else if (unlikely((mode & needmode) != needmode)) -+ return 0; -+ -+ return 1; -+} -+ -+__u32 -+gr_acl_handle_symlink(const struct dentry * new_dentry, -+ const struct dentry * parent_dentry, -+ const struct vfsmount * parent_mnt, const char *from) -+{ -+ __u32 needmode = GR_WRITE | GR_CREATE; -+ __u32 mode; -+ -+ mode = -+ gr_check_create(new_dentry, parent_dentry, parent_mnt, -+ GR_CREATE | GR_AUDIT_CREATE | -+ GR_WRITE | GR_AUDIT_WRITE | GR_SUPPRESS); -+ -+ if (unlikely(mode & GR_WRITE && mode & GR_AUDITS)) { -+ gr_log_fs_str_rbac(GR_DO_AUDIT, GR_SYMLINK_ACL_MSG, from, new_dentry, parent_mnt); -+ return mode; -+ } else if (unlikely(((mode & needmode) != needmode) && !(mode & GR_SUPPRESS))) { -+ gr_log_fs_str_rbac(GR_DONT_AUDIT, GR_SYMLINK_ACL_MSG, from, new_dentry, parent_mnt); -+ return 0; -+ } else if (unlikely((mode & needmode) != needmode)) -+ return 0; -+ -+ return (GR_WRITE | GR_CREATE); -+} -+ -+static __u32 generic_fs_create_handler(const struct dentry *new_dentry, const struct dentry *parent_dentry, const struct vfsmount *parent_mnt, __u32 reqmode, const char *fmt) -+{ -+ __u32 mode; -+ -+ mode = gr_check_create(new_dentry, parent_dentry, parent_mnt, reqmode | to_gr_audit(reqmode) | GR_SUPPRESS); -+ -+ if (unlikely(((mode & (reqmode)) == (reqmode)) && mode & GR_AUDITS)) { -+ gr_log_fs_rbac_generic(GR_DO_AUDIT, fmt, new_dentry, parent_mnt); -+ return mode; -+ } else if (unlikely((mode & (reqmode)) != (reqmode) && !(mode & GR_SUPPRESS))) { -+ gr_log_fs_rbac_generic(GR_DONT_AUDIT, fmt, new_dentry, parent_mnt); -+ return 0; -+ } else if (unlikely((mode & (reqmode)) != (reqmode))) -+ return 0; -+ -+ return (reqmode); -+} -+ -+__u32 -+gr_acl_handle_mknod(const struct dentry * new_dentry, -+ const struct dentry * parent_dentry, -+ const struct vfsmount * parent_mnt, -+ const int mode) -+{ -+ __u32 reqmode = GR_WRITE | GR_CREATE; -+ if (unlikely(mode & (S_ISUID | S_ISGID))) -+ reqmode |= GR_SETID; -+ -+ return generic_fs_create_handler(new_dentry, parent_dentry, parent_mnt, -+ reqmode, GR_MKNOD_ACL_MSG); -+} -+ -+__u32 -+gr_acl_handle_mkdir(const struct dentry *new_dentry, -+ const struct dentry *parent_dentry, -+ const struct vfsmount *parent_mnt) -+{ -+ return generic_fs_create_handler(new_dentry, parent_dentry, parent_mnt, -+ GR_WRITE | GR_CREATE, GR_MKDIR_ACL_MSG); -+} -+ -+#define RENAME_CHECK_SUCCESS(old, new) \ -+ (((old & (GR_WRITE | GR_READ)) == (GR_WRITE | GR_READ)) && \ -+ ((new & (GR_WRITE | GR_READ)) == (GR_WRITE | GR_READ))) -+ -+int -+gr_acl_handle_rename(struct dentry *new_dentry, -+ struct dentry *parent_dentry, -+ const struct vfsmount *parent_mnt, -+ struct dentry *old_dentry, -+ struct inode *old_parent_inode, -+ struct vfsmount *old_mnt, const char *newname) -+{ -+ __u32 comp1, comp2; -+ int error = 0; -+ -+ if (unlikely(!gr_acl_is_enabled())) -+ return 0; -+ -+ if (!new_dentry->d_inode) { -+ comp1 = gr_check_create(new_dentry, parent_dentry, parent_mnt, -+ GR_READ | GR_WRITE | GR_CREATE | GR_AUDIT_READ | -+ GR_AUDIT_WRITE | GR_AUDIT_CREATE | GR_SUPPRESS); -+ comp2 = gr_search_file(old_dentry, GR_READ | GR_WRITE | -+ GR_DELETE | GR_AUDIT_DELETE | -+ GR_AUDIT_READ | GR_AUDIT_WRITE | -+ GR_SUPPRESS, old_mnt); -+ } else { -+ comp1 = gr_search_file(new_dentry, GR_READ | GR_WRITE | -+ GR_CREATE | GR_DELETE | -+ GR_AUDIT_CREATE | GR_AUDIT_DELETE | -+ GR_AUDIT_READ | GR_AUDIT_WRITE | -+ GR_SUPPRESS, parent_mnt); -+ comp2 = -+ gr_search_file(old_dentry, -+ GR_READ | GR_WRITE | GR_AUDIT_READ | -+ GR_DELETE | GR_AUDIT_DELETE | -+ GR_AUDIT_WRITE | GR_SUPPRESS, old_mnt); -+ } -+ -+ if (RENAME_CHECK_SUCCESS(comp1, comp2) && -+ ((comp1 & GR_AUDITS) || (comp2 & GR_AUDITS))) -+ gr_log_fs_rbac_str(GR_DO_AUDIT, GR_RENAME_ACL_MSG, old_dentry, old_mnt, newname); -+ else if (!RENAME_CHECK_SUCCESS(comp1, comp2) && !(comp1 & GR_SUPPRESS) -+ && !(comp2 & GR_SUPPRESS)) { -+ gr_log_fs_rbac_str(GR_DONT_AUDIT, GR_RENAME_ACL_MSG, old_dentry, old_mnt, newname); -+ error = -EACCES; -+ } else if (unlikely(!RENAME_CHECK_SUCCESS(comp1, comp2))) -+ error = -EACCES; -+ -+ return error; -+} -+ -+void -+gr_acl_handle_exit(void) -+{ -+ u16 id; -+ char *rolename; -+ struct file *exec_file; -+ -+ if (unlikely(current->acl_sp_role && gr_acl_is_enabled())) { -+ id = current->acl_role_id; -+ rolename = current->role->rolename; -+ gr_set_acls(1); -+ gr_log_str_int(GR_DONT_AUDIT_GOOD, GR_SPROLEL_ACL_MSG, rolename, id); -+ } -+ -+ write_lock(&grsec_exec_file_lock); -+ exec_file = current->exec_file; -+ current->exec_file = NULL; -+ write_unlock(&grsec_exec_file_lock); -+ -+ if (exec_file) -+ fput(exec_file); -+} -+ -+int -+gr_acl_handle_procpidmem(const struct task_struct *task) -+{ -+ if (unlikely(!gr_acl_is_enabled())) -+ return 0; -+ -+ if (task != current && task->acl->mode & GR_PROTPROCFD) -+ return -EACCES; -+ -+ return 0; -+} -diff -urNp linux-2.6.28.8/grsecurity/gracl_ip.c linux-2.6.28.8/grsecurity/gracl_ip.c ---- linux-2.6.28.8/grsecurity/gracl_ip.c 1969-12-31 19:00:00.000000000 -0500 -+++ linux-2.6.28.8/grsecurity/gracl_ip.c 2009-02-21 09:37:49.000000000 -0500 -@@ -0,0 +1,338 @@ -+#include <linux/kernel.h> -+#include <asm/uaccess.h> -+#include <asm/errno.h> -+#include <net/sock.h> -+#include <linux/file.h> -+#include <linux/fs.h> -+#include <linux/net.h> -+#include <linux/in.h> -+#include <linux/skbuff.h> -+#include <linux/ip.h> -+#include <linux/udp.h> -+#include <linux/smp_lock.h> -+#include <linux/types.h> -+#include <linux/sched.h> -+#include <linux/netdevice.h> -+#include <linux/inetdevice.h> -+#include <linux/gracl.h> -+#include <linux/grsecurity.h> -+#include <linux/grinternal.h> -+ -+#define GR_BIND 0x01 -+#define GR_CONNECT 0x02 -+#define GR_INVERT 0x04 -+#define GR_BINDOVERRIDE 0x08 -+#define GR_CONNECTOVERRIDE 0x10 -+ -+static const char * gr_protocols[256] = { -+ "ip", "icmp", "igmp", "ggp", "ipencap", "st", "tcp", "cbt", -+ "egp", "igp", "bbn-rcc", "nvp", "pup", "argus", "emcon", "xnet", -+ "chaos", "udp", "mux", "dcn", "hmp", "prm", "xns-idp", "trunk-1", -+ "trunk-2", "leaf-1", "leaf-2", "rdp", "irtp", "iso-tp4", "netblt", "mfe-nsp", -+ "merit-inp", "sep", "3pc", "idpr", "xtp", "ddp", "idpr-cmtp", "tp++", -+ "il", "ipv6", "sdrp", "ipv6-route", "ipv6-frag", "idrp", "rsvp", "gre", -+ "mhrp", "bna", "ipv6-crypt", "ipv6-auth", "i-nlsp", "swipe", "narp", "mobile", -+ "tlsp", "skip", "ipv6-icmp", "ipv6-nonxt", "ipv6-opts", "unknown:61", "cftp", "unknown:63", -+ "sat-expak", "kryptolan", "rvd", "ippc", "unknown:68", "sat-mon", "visa", "ipcv", -+ "cpnx", "cphb", "wsn", "pvp", "br-sat-mon", "sun-nd", "wb-mon", "wb-expak", -+ "iso-ip", "vmtp", "secure-vmtp", "vines", "ttp", "nfsnet-igp", "dgp", "tcf", -+ "eigrp", "ospf", "sprite-rpc", "larp", "mtp", "ax.25", "ipip", "micp", -+ "scc-sp", "etherip", "encap", "unknown:99", "gmtp", "ifmp", "pnni", "pim", -+ "aris", "scps", "qnx", "a/n", "ipcomp", "snp", "compaq-peer", "ipx-in-ip", -+ "vrrp", "pgm", "unknown:114", "l2tp", "ddx", "iatp", "stp", "srp", -+ "uti", "smp", "sm", "ptp", "isis", "fire", "crtp", "crdup", -+ "sscopmce", "iplt", "sps", "pipe", "sctp", "fc", "unkown:134", "unknown:135", -+ "unknown:136", "unknown:137", "unknown:138", "unknown:139", "unknown:140", "unknown:141", "unknown:142", "unknown:143", -+ "unknown:144", "unknown:145", "unknown:146", "unknown:147", "unknown:148", "unknown:149", "unknown:150", "unknown:151", -+ "unknown:152", "unknown:153", "unknown:154", "unknown:155", "unknown:156", "unknown:157", "unknown:158", "unknown:159", -+ "unknown:160", "unknown:161", "unknown:162", "unknown:163", "unknown:164", "unknown:165", "unknown:166", "unknown:167", -+ "unknown:168", "unknown:169", "unknown:170", "unknown:171", "unknown:172", "unknown:173", "unknown:174", "unknown:175", -+ "unknown:176", "unknown:177", "unknown:178", "unknown:179", "unknown:180", "unknown:181", "unknown:182", "unknown:183", -+ "unknown:184", "unknown:185", "unknown:186", "unknown:187", "unknown:188", "unknown:189", "unknown:190", "unknown:191", -+ "unknown:192", "unknown:193", "unknown:194", "unknown:195", "unknown:196", "unknown:197", "unknown:198", "unknown:199", -+ "unknown:200", "unknown:201", "unknown:202", "unknown:203", "unknown:204", "unknown:205", "unknown:206", "unknown:207", -+ "unknown:208", "unknown:209", "unknown:210", "unknown:211", "unknown:212", "unknown:213", "unknown:214", "unknown:215", -+ "unknown:216", "unknown:217", "unknown:218", "unknown:219", "unknown:220", "unknown:221", "unknown:222", "unknown:223", -+ "unknown:224", "unknown:225", "unknown:226", "unknown:227", "unknown:228", "unknown:229", "unknown:230", "unknown:231", -+ "unknown:232", "unknown:233", "unknown:234", "unknown:235", "unknown:236", "unknown:237", "unknown:238", "unknown:239", -+ "unknown:240", "unknown:241", "unknown:242", "unknown:243", "unknown:244", "unknown:245", "unknown:246", "unknown:247", -+ "unknown:248", "unknown:249", "unknown:250", "unknown:251", "unknown:252", "unknown:253", "unknown:254", "unknown:255", -+ }; -+ -+static const char * gr_socktypes[11] = { -+ "unknown:0", "stream", "dgram", "raw", "rdm", "seqpacket", "unknown:6", -+ "unknown:7", "unknown:8", "unknown:9", "packet" -+ }; -+ -+const char * -+gr_proto_to_name(unsigned char proto) -+{ -+ return gr_protocols[proto]; -+} -+ -+const char * -+gr_socktype_to_name(unsigned char type) -+{ -+ return gr_socktypes[type]; -+} -+ -+int -+gr_search_socket(const int domain, const int type, const int protocol) -+{ -+ struct acl_subject_label *curr; -+ -+ if (unlikely(!gr_acl_is_enabled())) -+ goto exit; -+ -+ if ((domain < 0) || (type < 0) || (protocol < 0) || (domain != PF_INET) -+ || (domain >= NPROTO) || (type >= SOCK_MAX) || (protocol > 255)) -+ goto exit; // let the kernel handle it -+ -+ curr = current->acl; -+ -+ if (!curr->ips) -+ goto exit; -+ -+ if ((curr->ip_type & (1 << type)) && -+ (curr->ip_proto[protocol / 32] & (1 << (protocol % 32)))) -+ goto exit; -+ -+ if (curr->mode & (GR_LEARN | GR_INHERITLEARN)) { -+ /* we don't place acls on raw sockets , and sometimes -+ dgram/ip sockets are opened for ioctl and not -+ bind/connect, so we'll fake a bind learn log */ -+ if (type == SOCK_RAW || type == SOCK_PACKET) { -+ __u32 fakeip = 0; -+ security_learn(GR_IP_LEARN_MSG, current->role->rolename, -+ current->role->roletype, current->uid, -+ current->gid, current->exec_file ? -+ gr_to_filename(current->exec_file->f_path.dentry, -+ current->exec_file->f_path.mnt) : -+ curr->filename, curr->filename, -+ NIPQUAD(fakeip), 0, type, -+ protocol, GR_CONNECT, -+NIPQUAD(current->signal->curr_ip)); -+ } else if ((type == SOCK_DGRAM) && (protocol == IPPROTO_IP)) { -+ __u32 fakeip = 0; -+ security_learn(GR_IP_LEARN_MSG, current->role->rolename, -+ current->role->roletype, current->uid, -+ current->gid, current->exec_file ? -+ gr_to_filename(current->exec_file->f_path.dentry, -+ current->exec_file->f_path.mnt) : -+ curr->filename, curr->filename, -+ NIPQUAD(fakeip), 0, type, -+ protocol, GR_BIND, NIPQUAD(current->signal->curr_ip)); -+ } -+ /* we'll log when they use connect or bind */ -+ goto exit; -+ } -+ -+ gr_log_str3(GR_DONT_AUDIT, GR_SOCK_MSG, "inet", -+ gr_socktype_to_name(type), gr_proto_to_name(protocol)); -+ -+ return 0; -+ exit: -+ return 1; -+} -+ -+int check_ip_policy(struct acl_ip_label *ip, __u32 ip_addr, __u16 ip_port, __u8 protocol, const int mode, const int type, __u32 our_addr, __u32 our_netmask) -+{ -+ if ((ip->mode & mode) && -+ (ip_port >= ip->low) && -+ (ip_port <= ip->high) && -+ ((ntohl(ip_addr) & our_netmask) == -+ (ntohl(our_addr) & our_netmask)) -+ && (ip->proto[protocol / 32] & (1 << (protocol % 32))) -+ && (ip->type & (1 << type))) { -+ if (ip->mode & GR_INVERT) -+ return 2; // specifically denied -+ else -+ return 1; // allowed -+ } -+ -+ return 0; // not specifically allowed, may continue parsing -+} -+ -+static int -+gr_search_connectbind(const int full_mode, struct sock *sk, -+ struct sockaddr_in *addr, const int type) -+{ -+ char iface[IFNAMSIZ] = {0}; -+ struct acl_subject_label *curr; -+ struct acl_ip_label *ip; -+ struct inet_sock *isk; -+ struct net_device *dev; -+ struct in_device *idev; -+ unsigned long i; -+ int ret; -+ int mode = full_mode & (GR_BIND | GR_CONNECT); -+ __u32 ip_addr = 0; -+ __u32 our_addr; -+ __u32 our_netmask; -+ char *p; -+ __u16 ip_port = 0; -+ -+ if (unlikely(!gr_acl_is_enabled() || sk->sk_family != PF_INET)) -+ return 0; -+ -+ curr = current->acl; -+ isk = inet_sk(sk); -+ -+ /* INADDR_ANY overriding for binds, inaddr_any_override is already in network order */ -+ if ((full_mode & GR_BINDOVERRIDE) && addr->sin_addr.s_addr == htonl(INADDR_ANY) && curr->inaddr_any_override != 0) -+ addr->sin_addr.s_addr = curr->inaddr_any_override; -+ if ((full_mode & GR_CONNECT) && isk->saddr == htonl(INADDR_ANY) && curr->inaddr_any_override != 0) { -+ struct sockaddr_in saddr; -+ int err; -+ -+ saddr.sin_family = AF_INET; -+ saddr.sin_addr.s_addr = curr->inaddr_any_override; -+ saddr.sin_port = isk->sport; -+ -+ err = security_socket_bind(sk->sk_socket, (struct sockaddr *)&saddr, sizeof(struct sockaddr_in)); -+ if (err) -+ return err; -+ -+ err = sk->sk_socket->ops->bind(sk->sk_socket, (struct sockaddr *)&saddr, sizeof(struct sockaddr_in)); -+ if (err) -+ return err; -+ } -+ -+ if (!curr->ips) -+ return 0; -+ -+ ip_addr = addr->sin_addr.s_addr; -+ ip_port = ntohs(addr->sin_port); -+ -+ if (curr->mode & (GR_LEARN | GR_INHERITLEARN)) { -+ security_learn(GR_IP_LEARN_MSG, current->role->rolename, -+ current->role->roletype, current->uid, -+ current->gid, current->exec_file ? -+ gr_to_filename(current->exec_file->f_path.dentry, -+ current->exec_file->f_path.mnt) : -+ curr->filename, curr->filename, -+ NIPQUAD(ip_addr), ip_port, type, -+ sk->sk_protocol, mode, NIPQUAD(current->signal->curr_ip)); -+ return 0; -+ } -+ -+ for (i = 0; i < curr->ip_num; i++) { -+ ip = *(curr->ips + i); -+ if (ip->iface != NULL) { -+ strncpy(iface, ip->iface, IFNAMSIZ - 1); -+ p = strchr(iface, ':'); -+ if (p != NULL) -+ *p = '\0'; -+ dev = dev_get_by_name(sock_net(sk), iface); -+ if (dev == NULL) -+ continue; -+ idev = in_dev_get(dev); -+ if (idev == NULL) { -+ dev_put(dev); -+ continue; -+ } -+ rcu_read_lock(); -+ for_ifa(idev) { -+ if (!strcmp(ip->iface, ifa->ifa_label)) { -+ our_addr = ifa->ifa_address; -+ our_netmask = 0xffffffff; -+ ret = check_ip_policy(ip, ip_addr, ip_port, sk->sk_protocol, mode, type, our_addr, our_netmask); -+ if (ret == 1) { -+ rcu_read_unlock(); -+ in_dev_put(idev); -+ dev_put(dev); -+ return 0; -+ } else if (ret == 2) { -+ rcu_read_unlock(); -+ in_dev_put(idev); -+ dev_put(dev); -+ goto denied; -+ } -+ } -+ } endfor_ifa(idev); -+ rcu_read_unlock(); -+ in_dev_put(idev); -+ dev_put(dev); -+ } else { -+ our_addr = ip->addr; -+ our_netmask = ip->netmask; -+ ret = check_ip_policy(ip, ip_addr, ip_port, sk->sk_protocol, mode, type, our_addr, our_netmask); -+ if (ret == 1) -+ return 0; -+ else if (ret == 2) -+ goto denied; -+ } -+ } -+ -+denied: -+ if (mode == GR_BIND) -+ gr_log_int5_str2(GR_DONT_AUDIT, GR_BIND_ACL_MSG, NIPQUAD(ip_addr), ip_port, gr_socktype_to_name(type), gr_proto_to_name(sk->sk_protocol)); -+ else if (mode == GR_CONNECT) -+ gr_log_int5_str2(GR_DONT_AUDIT, GR_CONNECT_ACL_MSG, NIPQUAD(ip_addr), ip_port, gr_socktype_to_name(type), gr_proto_to_name(sk->sk_protocol)); -+ -+ return -EACCES; -+} -+ -+int -+gr_search_connect(struct socket *sock, struct sockaddr_in *addr) -+{ -+ return gr_search_connectbind(GR_CONNECT | GR_CONNECTOVERRIDE, sock->sk, addr, sock->type); -+} -+ -+int -+gr_search_bind(struct socket *sock, struct sockaddr_in *addr) -+{ -+ return gr_search_connectbind(GR_BIND | GR_BINDOVERRIDE, sock->sk, addr, sock->type); -+} -+ -+int gr_search_listen(struct socket *sock) -+{ -+ struct sock *sk = sock->sk; -+ struct sockaddr_in addr; -+ -+ addr.sin_addr.s_addr = inet_sk(sk)->saddr; -+ addr.sin_port = inet_sk(sk)->sport; -+ -+ return gr_search_connectbind(GR_BIND | GR_CONNECTOVERRIDE, sock->sk, &addr, sock->type); -+} -+ -+int gr_search_accept(struct socket *sock) -+{ -+ struct sock *sk = sock->sk; -+ struct sockaddr_in addr; -+ -+ addr.sin_addr.s_addr = inet_sk(sk)->saddr; -+ addr.sin_port = inet_sk(sk)->sport; -+ -+ return gr_search_connectbind(GR_BIND | GR_CONNECTOVERRIDE, sock->sk, &addr, sock->type); -+} -+ -+int -+gr_search_udp_sendmsg(struct sock *sk, struct sockaddr_in *addr) -+{ -+ if (addr) -+ return gr_search_connectbind(GR_CONNECT, sk, addr, SOCK_DGRAM); -+ else { -+ struct sockaddr_in sin; -+ const struct inet_sock *inet = inet_sk(sk); -+ -+ sin.sin_addr.s_addr = inet->daddr; -+ sin.sin_port = inet->dport; -+ -+ return gr_search_connectbind(GR_CONNECT | GR_CONNECTOVERRIDE, sk, &sin, SOCK_DGRAM); -+ } -+} -+ -+int -+gr_search_udp_recvmsg(struct sock *sk, const struct sk_buff *skb) -+{ -+ struct sockaddr_in sin; -+ -+ if (unlikely(skb->len < sizeof (struct udphdr))) -+ return 0; // skip this packet -+ -+ sin.sin_addr.s_addr = ip_hdr(skb)->saddr; -+ sin.sin_port = udp_hdr(skb)->source; -+ -+ return gr_search_connectbind(GR_CONNECT | GR_CONNECTOVERRIDE, sk, &sin, SOCK_DGRAM); -+} -diff -urNp linux-2.6.28.8/grsecurity/gracl_learn.c linux-2.6.28.8/grsecurity/gracl_learn.c ---- linux-2.6.28.8/grsecurity/gracl_learn.c 1969-12-31 19:00:00.000000000 -0500 -+++ linux-2.6.28.8/grsecurity/gracl_learn.c 2009-02-21 09:37:49.000000000 -0500 -@@ -0,0 +1,211 @@ -+#include <linux/kernel.h> -+#include <linux/mm.h> -+#include <linux/sched.h> -+#include <linux/poll.h> -+#include <linux/smp_lock.h> -+#include <linux/string.h> -+#include <linux/file.h> -+#include <linux/types.h> -+#include <linux/vmalloc.h> -+#include <linux/grinternal.h> -+ -+extern ssize_t write_grsec_handler(struct file * file, const char __user * buf, -+ size_t count, loff_t *ppos); -+extern int gr_acl_is_enabled(void); -+ -+static DECLARE_WAIT_QUEUE_HEAD(learn_wait); -+static int gr_learn_attached; -+ -+/* use a 512k buffer */ -+#define LEARN_BUFFER_SIZE (512 * 1024) -+ -+static DEFINE_SPINLOCK(gr_learn_lock); -+static DECLARE_MUTEX(gr_learn_user_sem); -+ -+/* we need to maintain two buffers, so that the kernel context of grlearn -+ uses a semaphore around the userspace copying, and the other kernel contexts -+ use a spinlock when copying into the buffer, since they cannot sleep -+*/ -+static char *learn_buffer; -+static char *learn_buffer_user; -+static int learn_buffer_len; -+static int learn_buffer_user_len; -+ -+static ssize_t -+read_learn(struct file *file, char __user * buf, size_t count, loff_t * ppos) -+{ -+ DECLARE_WAITQUEUE(wait, current); -+ ssize_t retval = 0; -+ -+ add_wait_queue(&learn_wait, &wait); -+ set_current_state(TASK_INTERRUPTIBLE); -+ do { -+ down(&gr_learn_user_sem); -+ spin_lock(&gr_learn_lock); -+ if (learn_buffer_len) -+ break; -+ spin_unlock(&gr_learn_lock); -+ up(&gr_learn_user_sem); -+ if (file->f_flags & O_NONBLOCK) { -+ retval = -EAGAIN; -+ goto out; -+ } -+ if (signal_pending(current)) { -+ retval = -ERESTARTSYS; -+ goto out; -+ } -+ -+ schedule(); -+ } while (1); -+ -+ memcpy(learn_buffer_user, learn_buffer, learn_buffer_len); -+ learn_buffer_user_len = learn_buffer_len; -+ retval = learn_buffer_len; -+ learn_buffer_len = 0; -+ -+ spin_unlock(&gr_learn_lock); -+ -+ if (copy_to_user(buf, learn_buffer_user, learn_buffer_user_len)) -+ retval = -EFAULT; -+ -+ up(&gr_learn_user_sem); -+out: -+ set_current_state(TASK_RUNNING); -+ remove_wait_queue(&learn_wait, &wait); -+ return retval; -+} -+ -+static unsigned int -+poll_learn(struct file * file, poll_table * wait) -+{ -+ poll_wait(file, &learn_wait, wait); -+ -+ if (learn_buffer_len) -+ return (POLLIN | POLLRDNORM); -+ -+ return 0; -+} -+ -+void -+gr_clear_learn_entries(void) -+{ -+ char *tmp; -+ -+ down(&gr_learn_user_sem); -+ if (learn_buffer != NULL) { -+ spin_lock(&gr_learn_lock); -+ tmp = learn_buffer; -+ learn_buffer = NULL; -+ spin_unlock(&gr_learn_lock); -+ vfree(learn_buffer); -+ } -+ if (learn_buffer_user != NULL) { -+ vfree(learn_buffer_user); -+ learn_buffer_user = NULL; -+ } -+ learn_buffer_len = 0; -+ up(&gr_learn_user_sem); -+ -+ return; -+} -+ -+void -+gr_add_learn_entry(const char *fmt, ...) -+{ -+ va_list args; -+ unsigned int len; -+ -+ if (!gr_learn_attached) -+ return; -+ -+ spin_lock(&gr_learn_lock); -+ -+ /* leave a gap at the end so we know when it's "full" but don't have to -+ compute the exact length of the string we're trying to append -+ */ -+ if (learn_buffer_len > LEARN_BUFFER_SIZE - 16384) { -+ spin_unlock(&gr_learn_lock); -+ wake_up_interruptible(&learn_wait); -+ return; -+ } -+ if (learn_buffer == NULL) { -+ spin_unlock(&gr_learn_lock); -+ return; -+ } -+ -+ va_start(args, fmt); -+ len = vsnprintf(learn_buffer + learn_buffer_len, LEARN_BUFFER_SIZE - learn_buffer_len, fmt, args); -+ va_end(args); -+ -+ learn_buffer_len += len + 1; -+ -+ spin_unlock(&gr_learn_lock); -+ wake_up_interruptible(&learn_wait); -+ -+ return; -+} -+ -+static int -+open_learn(struct inode *inode, struct file *file) -+{ -+ if (file->f_mode & FMODE_READ && gr_learn_attached) -+ return -EBUSY; -+ if (file->f_mode & FMODE_READ) { -+ int retval = 0; -+ down(&gr_learn_user_sem); -+ if (learn_buffer == NULL) -+ learn_buffer = vmalloc(LEARN_BUFFER_SIZE); -+ if (learn_buffer_user == NULL) -+ learn_buffer_user = vmalloc(LEARN_BUFFER_SIZE); -+ if (learn_buffer == NULL) { -+ retval = -ENOMEM; -+ goto out_error; -+ } -+ if (learn_buffer_user == NULL) { -+ retval = -ENOMEM; -+ goto out_error; -+ } -+ learn_buffer_len = 0; -+ learn_buffer_user_len = 0; -+ gr_learn_attached = 1; -+out_error: -+ up(&gr_learn_user_sem); -+ return retval; -+ } -+ return 0; -+} -+ -+static int -+close_learn(struct inode *inode, struct file *file) -+{ -+ char *tmp; -+ -+ if (file->f_mode & FMODE_READ) { -+ down(&gr_learn_user_sem); -+ if (learn_buffer != NULL) { -+ spin_lock(&gr_learn_lock); -+ tmp = learn_buffer; -+ learn_buffer = NULL; -+ spin_unlock(&gr_learn_lock); -+ vfree(tmp); -+ } -+ if (learn_buffer_user != NULL) { -+ vfree(learn_buffer_user); -+ learn_buffer_user = NULL; -+ } -+ learn_buffer_len = 0; -+ learn_buffer_user_len = 0; -+ gr_learn_attached = 0; -+ up(&gr_learn_user_sem); -+ } -+ -+ return 0; -+} -+ -+struct file_operations grsec_fops = { -+ .read = read_learn, -+ .write = write_grsec_handler, -+ .open = open_learn, -+ .release = close_learn, -+ .poll = poll_learn, -+}; -diff -urNp linux-2.6.28.8/grsecurity/gracl_res.c linux-2.6.28.8/grsecurity/gracl_res.c ---- linux-2.6.28.8/grsecurity/gracl_res.c 1969-12-31 19:00:00.000000000 -0500 -+++ linux-2.6.28.8/grsecurity/gracl_res.c 2009-02-21 09:37:49.000000000 -0500 -@@ -0,0 +1,45 @@ -+#include <linux/kernel.h> -+#include <linux/sched.h> -+#include <linux/gracl.h> -+#include <linux/grinternal.h> -+ -+static const char *restab_log[] = { -+ [RLIMIT_CPU] = "RLIMIT_CPU", -+ [RLIMIT_FSIZE] = "RLIMIT_FSIZE", -+ [RLIMIT_DATA] = "RLIMIT_DATA", -+ [RLIMIT_STACK] = "RLIMIT_STACK", -+ [RLIMIT_CORE] = "RLIMIT_CORE", -+ [RLIMIT_RSS] = "RLIMIT_RSS", -+ [RLIMIT_NPROC] = "RLIMIT_NPROC", -+ [RLIMIT_NOFILE] = "RLIMIT_NOFILE", -+ [RLIMIT_MEMLOCK] = "RLIMIT_MEMLOCK", -+ [RLIMIT_AS] = "RLIMIT_AS", -+ [RLIMIT_LOCKS] = "RLIMIT_LOCKS", -+ [RLIMIT_LOCKS + 1] = "RLIMIT_CRASH" -+}; -+ -+void -+gr_log_resource(const struct task_struct *task, -+ const int res, const unsigned long wanted, const int gt) -+{ -+ if (res == RLIMIT_NPROC && -+ (cap_raised(task->cap_effective, CAP_SYS_ADMIN) || -+ cap_raised(task->cap_effective, CAP_SYS_RESOURCE))) -+ return; -+ else if (res == RLIMIT_MEMLOCK && -+ cap_raised(task->cap_effective, CAP_IPC_LOCK)) -+ return; -+ -+ if (!gr_acl_is_enabled() && !grsec_resource_logging) -+ return; -+ -+ preempt_disable(); -+ -+ if (unlikely(((gt && wanted > task->signal->rlim[res].rlim_cur) || -+ (!gt && wanted >= task->signal->rlim[res].rlim_cur)) && -+ task->signal->rlim[res].rlim_cur != RLIM_INFINITY)) -+ gr_log_res_ulong2_str(GR_DONT_AUDIT, GR_RESOURCE_MSG, task, wanted, restab_log[res], task->signal->rlim[res].rlim_cur); -+ preempt_enable_no_resched(); -+ -+ return; -+} -diff -urNp linux-2.6.28.8/grsecurity/gracl_segv.c linux-2.6.28.8/grsecurity/gracl_segv.c ---- linux-2.6.28.8/grsecurity/gracl_segv.c 1969-12-31 19:00:00.000000000 -0500 -+++ linux-2.6.28.8/grsecurity/gracl_segv.c 2009-02-21 09:37:49.000000000 -0500 -@@ -0,0 +1,304 @@ -+#include <linux/kernel.h> -+#include <linux/mm.h> -+#include <asm/uaccess.h> -+#include <asm/errno.h> -+#include <asm/mman.h> -+#include <net/sock.h> -+#include <linux/file.h> -+#include <linux/fs.h> -+#include <linux/net.h> -+#include <linux/in.h> -+#include <linux/smp_lock.h> -+#include <linux/slab.h> -+#include <linux/types.h> -+#include <linux/sched.h> -+#include <linux/timer.h> -+#include <linux/gracl.h> -+#include <linux/grsecurity.h> -+#include <linux/grinternal.h> -+ -+static struct crash_uid *uid_set; -+static unsigned short uid_used; -+static DEFINE_SPINLOCK(gr_uid_lock); -+extern rwlock_t gr_inode_lock; -+extern struct acl_subject_label * -+ lookup_acl_subj_label(const ino_t inode, const dev_t dev, -+ struct acl_role_label *role); -+extern int specific_send_sig_info(int sig, struct siginfo *info, struct task_struct *t); -+ -+int -+gr_init_uidset(void) -+{ -+ uid_set = -+ kmalloc(GR_UIDTABLE_MAX * sizeof (struct crash_uid), GFP_KERNEL); -+ uid_used = 0; -+ -+ return uid_set ? 1 : 0; -+} -+ -+void -+gr_free_uidset(void) -+{ -+ if (uid_set) -+ kfree(uid_set); -+ -+ return; -+} -+ -+int -+gr_find_uid(const uid_t uid) -+{ -+ struct crash_uid *tmp = uid_set; -+ uid_t buid; -+ int low = 0, high = uid_used - 1, mid; -+ -+ while (high >= low) { -+ mid = (low + high) >> 1; -+ buid = tmp[mid].uid; -+ if (buid == uid) -+ return mid; -+ if (buid > uid) -+ high = mid - 1; -+ if (buid < uid) -+ low = mid + 1; -+ } -+ -+ return -1; -+} -+ -+static __inline__ void -+gr_insertsort(void) -+{ -+ unsigned short i, j; -+ struct crash_uid index; -+ -+ for (i = 1; i < uid_used; i++) { -+ index = uid_set[i]; -+ j = i; -+ while ((j > 0) && uid_set[j - 1].uid > index.uid) { -+ uid_set[j] = uid_set[j - 1]; -+ j--; -+ } -+ uid_set[j] = index; -+ } -+ -+ return; -+} -+ -+static __inline__ void -+gr_insert_uid(const uid_t uid, const unsigned long expires) -+{ -+ int loc; -+ -+ if (uid_used == GR_UIDTABLE_MAX) -+ return; -+ -+ loc = gr_find_uid(uid); -+ -+ if (loc >= 0) { -+ uid_set[loc].expires = expires; -+ return; -+ } -+ -+ uid_set[uid_used].uid = uid; -+ uid_set[uid_used].expires = expires; -+ uid_used++; -+ -+ gr_insertsort(); -+ -+ return; -+} -+ -+void -+gr_remove_uid(const unsigned short loc) -+{ -+ unsigned short i; -+ -+ for (i = loc + 1; i < uid_used; i++) -+ uid_set[i - 1] = uid_set[i]; -+ -+ uid_used--; -+ -+ return; -+} -+ -+int -+gr_check_crash_uid(const uid_t uid) -+{ -+ int loc; -+ int ret = 0; -+ -+ if (unlikely(!gr_acl_is_enabled())) -+ return 0; -+ -+ spin_lock(&gr_uid_lock); -+ loc = gr_find_uid(uid); -+ -+ if (loc < 0) -+ goto out_unlock; -+ -+ if (time_before_eq(uid_set[loc].expires, get_seconds())) -+ gr_remove_uid(loc); -+ else -+ ret = 1; -+ -+out_unlock: -+ spin_unlock(&gr_uid_lock); -+ return ret; -+} -+ -+static __inline__ int -+proc_is_setxid(const struct task_struct *task) -+{ -+ if (task->uid != task->euid || task->uid != task->suid || -+ task->uid != task->fsuid) -+ return 1; -+ if (task->gid != task->egid || task->gid != task->sgid || -+ task->gid != task->fsgid) -+ return 1; -+ -+ return 0; -+} -+static __inline__ int -+gr_fake_force_sig(int sig, struct task_struct *t) -+{ -+ unsigned long int flags; -+ int ret, blocked, ignored; -+ struct k_sigaction *action; -+ -+ spin_lock_irqsave(&t->sighand->siglock, flags); -+ action = &t->sighand->action[sig-1]; -+ ignored = action->sa.sa_handler == SIG_IGN; -+ blocked = sigismember(&t->blocked, sig); -+ if (blocked || ignored) { -+ action->sa.sa_handler = SIG_DFL; -+ if (blocked) { -+ sigdelset(&t->blocked, sig); -+ recalc_sigpending_and_wake(t); -+ } -+ } -+ if (action->sa.sa_handler == SIG_DFL) -+ t->signal->flags &= ~SIGNAL_UNKILLABLE; -+ ret = specific_send_sig_info(sig, SEND_SIG_PRIV, t); -+ -+ spin_unlock_irqrestore(&t->sighand->siglock, flags); -+ -+ return ret; -+} -+ -+void -+gr_handle_crash(struct task_struct *task, const int sig) -+{ -+ struct acl_subject_label *curr; -+ struct acl_subject_label *curr2; -+ struct task_struct *tsk, *tsk2; -+ -+ if (sig != SIGSEGV && sig != SIGKILL && sig != SIGBUS && sig != SIGILL) -+ return; -+ -+ if (unlikely(!gr_acl_is_enabled())) -+ return; -+ -+ curr = task->acl; -+ -+ if (!(curr->resmask & (1 << GR_CRASH_RES))) -+ return; -+ -+ if (time_before_eq(curr->expires, get_seconds())) { -+ curr->expires = 0; -+ curr->crashes = 0; -+ } -+ -+ curr->crashes++; -+ -+ if (!curr->expires) -+ curr->expires = get_seconds() + curr->res[GR_CRASH_RES].rlim_max; -+ -+ if ((curr->crashes >= curr->res[GR_CRASH_RES].rlim_cur) && -+ time_after(curr->expires, get_seconds())) { -+ if (task->uid && proc_is_setxid(task)) { -+ gr_log_crash1(GR_DONT_AUDIT, GR_SEGVSTART_ACL_MSG, task, curr->res[GR_CRASH_RES].rlim_max); -+ spin_lock(&gr_uid_lock); -+ gr_insert_uid(task->uid, curr->expires); -+ spin_unlock(&gr_uid_lock); -+ curr->expires = 0; -+ curr->crashes = 0; -+ read_lock(&tasklist_lock); -+ do_each_thread(tsk2, tsk) { -+ if (tsk != task && tsk->uid == task->uid) -+ gr_fake_force_sig(SIGKILL, tsk); -+ } while_each_thread(tsk2, tsk); -+ read_unlock(&tasklist_lock); -+ } else { -+ gr_log_crash2(GR_DONT_AUDIT, GR_SEGVNOSUID_ACL_MSG, task, curr->res[GR_CRASH_RES].rlim_max); -+ read_lock(&tasklist_lock); -+ do_each_thread(tsk2, tsk) { -+ if (likely(tsk != task)) { -+ curr2 = tsk->acl; -+ -+ if (curr2->device == curr->device && -+ curr2->inode == curr->inode) -+ gr_fake_force_sig(SIGKILL, tsk); -+ } -+ } while_each_thread(tsk2, tsk); -+ read_unlock(&tasklist_lock); -+ } -+ } -+ -+ return; -+} -+ -+int -+gr_check_crash_exec(const struct file *filp) -+{ -+ struct acl_subject_label *curr; -+ -+ if (unlikely(!gr_acl_is_enabled())) -+ return 0; -+ -+ read_lock(&gr_inode_lock); -+ curr = lookup_acl_subj_label(filp->f_path.dentry->d_inode->i_ino, -+ filp->f_path.dentry->d_inode->i_sb->s_dev, -+ current->role); -+ read_unlock(&gr_inode_lock); -+ -+ if (!curr || !(curr->resmask & (1 << GR_CRASH_RES)) || -+ (!curr->crashes && !curr->expires)) -+ return 0; -+ -+ if ((curr->crashes >= curr->res[GR_CRASH_RES].rlim_cur) && -+ time_after(curr->expires, get_seconds())) -+ return 1; -+ else if (time_before_eq(curr->expires, get_seconds())) { -+ curr->crashes = 0; -+ curr->expires = 0; -+ } -+ -+ return 0; -+} -+ -+void -+gr_handle_alertkill(struct task_struct *task) -+{ -+ struct acl_subject_label *curracl; -+ __u32 curr_ip; -+ struct task_struct *p, *p2; -+ -+ if (unlikely(!gr_acl_is_enabled())) -+ return; -+ -+ curracl = task->acl; -+ curr_ip = task->signal->curr_ip; -+ -+ if ((curracl->mode & GR_KILLIPPROC) && curr_ip) { -+ read_lock(&tasklist_lock); -+ do_each_thread(p2, p) { -+ if (p->signal->curr_ip == curr_ip) -+ gr_fake_force_sig(SIGKILL, p); -+ } while_each_thread(p2, p); -+ read_unlock(&tasklist_lock); -+ } else if (curracl->mode & GR_KILLPROC) -+ gr_fake_force_sig(SIGKILL, task); -+ -+ return; -+} -diff -urNp linux-2.6.28.8/grsecurity/gracl_shm.c linux-2.6.28.8/grsecurity/gracl_shm.c ---- linux-2.6.28.8/grsecurity/gracl_shm.c 1969-12-31 19:00:00.000000000 -0500 -+++ linux-2.6.28.8/grsecurity/gracl_shm.c 2009-02-21 09:37:49.000000000 -0500 -@@ -0,0 +1,33 @@ -+#include <linux/kernel.h> -+#include <linux/mm.h> -+#include <linux/sched.h> -+#include <linux/file.h> -+#include <linux/ipc.h> -+#include <linux/gracl.h> -+#include <linux/grsecurity.h> -+#include <linux/grinternal.h> -+ -+int -+gr_handle_shmat(const pid_t shm_cprid, const pid_t shm_lapid, -+ const time_t shm_createtime, const uid_t cuid, const int shmid) -+{ -+ struct task_struct *task; -+ -+ if (!gr_acl_is_enabled()) -+ return 1; -+ -+ task = find_task_by_vpid(shm_cprid); -+ -+ if (unlikely(!task)) -+ task = find_task_by_vpid(shm_lapid); -+ -+ if (unlikely(task && (time_before_eq((unsigned long)task->start_time.tv_sec, (unsigned long)shm_createtime) || -+ (task->pid == shm_lapid)) && -+ (task->acl->mode & GR_PROTSHM) && -+ (task->acl != current->acl))) { -+ gr_log_int3(GR_DONT_AUDIT, GR_SHMAT_ACL_MSG, cuid, shm_cprid, shmid); -+ return 0; -+ } -+ -+ return 1; -+} -diff -urNp linux-2.6.28.8/grsecurity/grsec_chdir.c linux-2.6.28.8/grsecurity/grsec_chdir.c ---- linux-2.6.28.8/grsecurity/grsec_chdir.c 1969-12-31 19:00:00.000000000 -0500 -+++ linux-2.6.28.8/grsecurity/grsec_chdir.c 2009-02-21 09:37:49.000000000 -0500 -@@ -0,0 +1,19 @@ -+#include <linux/kernel.h> -+#include <linux/sched.h> -+#include <linux/fs.h> -+#include <linux/file.h> -+#include <linux/grsecurity.h> -+#include <linux/grinternal.h> -+ -+void -+gr_log_chdir(const struct dentry *dentry, const struct vfsmount *mnt) -+{ -+#ifdef CONFIG_GRKERNSEC_AUDIT_CHDIR -+ if ((grsec_enable_chdir && grsec_enable_group && -+ in_group_p(grsec_audit_gid)) || (grsec_enable_chdir && -+ !grsec_enable_group)) { -+ gr_log_fs_generic(GR_DO_AUDIT, GR_CHDIR_AUDIT_MSG, dentry, mnt); -+ } -+#endif -+ return; -+} -diff -urNp linux-2.6.28.8/grsecurity/grsec_chroot.c linux-2.6.28.8/grsecurity/grsec_chroot.c ---- linux-2.6.28.8/grsecurity/grsec_chroot.c 1969-12-31 19:00:00.000000000 -0500 -+++ linux-2.6.28.8/grsecurity/grsec_chroot.c 2009-02-21 09:37:49.000000000 -0500 -@@ -0,0 +1,336 @@ -+#include <linux/kernel.h> -+#include <linux/module.h> -+#include <linux/sched.h> -+#include <linux/file.h> -+#include <linux/fs.h> -+#include <linux/mount.h> -+#include <linux/types.h> -+#include <linux/pid_namespace.h> -+#include <linux/grsecurity.h> -+#include <linux/grinternal.h> -+ -+int -+gr_handle_chroot_unix(const pid_t pid) -+{ -+#ifdef CONFIG_GRKERNSEC_CHROOT_UNIX -+ struct pid *spid = NULL; -+ -+ if (unlikely(!grsec_enable_chroot_unix)) -+ return 1; -+ -+ if (likely(!proc_is_chrooted(current))) -+ return 1; -+ -+ read_lock(&tasklist_lock); -+ -+ spid = find_vpid(pid); -+ if (spid) { -+ struct task_struct *p; -+ p = pid_task(spid, PIDTYPE_PID); -+ task_lock(p); -+ if (unlikely(!have_same_root(current, p))) { -+ task_unlock(p); -+ read_unlock(&tasklist_lock); -+ gr_log_noargs(GR_DONT_AUDIT, GR_UNIX_CHROOT_MSG); -+ return 0; -+ } -+ task_unlock(p); -+ } -+ read_unlock(&tasklist_lock); -+#endif -+ return 1; -+} -+ -+int -+gr_handle_chroot_nice(void) -+{ -+#ifdef CONFIG_GRKERNSEC_CHROOT_NICE -+ if (grsec_enable_chroot_nice && proc_is_chrooted(current)) { -+ gr_log_noargs(GR_DONT_AUDIT, GR_NICE_CHROOT_MSG); -+ return -EPERM; -+ } -+#endif -+ return 0; -+} -+ -+int -+gr_handle_chroot_setpriority(struct task_struct *p, const int niceval) -+{ -+#ifdef CONFIG_GRKERNSEC_CHROOT_NICE -+ if (grsec_enable_chroot_nice && (niceval < task_nice(p)) -+ && proc_is_chrooted(current)) { -+ gr_log_str_int(GR_DONT_AUDIT, GR_PRIORITY_CHROOT_MSG, p->comm, p->pid); -+ return -EACCES; -+ } -+#endif -+ return 0; -+} -+ -+int -+gr_handle_chroot_rawio(const struct inode *inode) -+{ -+#ifdef CONFIG_GRKERNSEC_CHROOT_CAPS -+ if (grsec_enable_chroot_caps && proc_is_chrooted(current) && -+ inode && S_ISBLK(inode->i_mode) && !capable(CAP_SYS_RAWIO)) -+ return 1; -+#endif -+ return 0; -+} -+ -+int -+gr_pid_is_chrooted(struct task_struct *p) -+{ -+#ifdef CONFIG_GRKERNSEC_CHROOT_FINDTASK -+ if (!grsec_enable_chroot_findtask || !proc_is_chrooted(current) || p == NULL) -+ return 0; -+ -+ task_lock(p); -+ if ((p->exit_state & (EXIT_ZOMBIE | EXIT_DEAD)) || -+ !have_same_root(current, p)) { -+ task_unlock(p); -+ return 1; -+ } -+ task_unlock(p); -+#endif -+ return 0; -+} -+ -+EXPORT_SYMBOL(gr_pid_is_chrooted); -+ -+#if defined(CONFIG_GRKERNSEC_CHROOT_DOUBLE) || defined(CONFIG_GRKERNSEC_CHROOT_FCHDIR) -+int gr_is_outside_chroot(const struct dentry *u_dentry, const struct vfsmount *u_mnt) -+{ -+ struct dentry *dentry = (struct dentry *)u_dentry; -+ struct vfsmount *mnt = (struct vfsmount *)u_mnt; -+ struct dentry *realroot; -+ struct vfsmount *realrootmnt; -+ struct dentry *currentroot; -+ struct vfsmount *currentmnt; -+ struct task_struct *reaper = current->nsproxy->pid_ns->child_reaper; -+ int ret = 1; -+ -+ read_lock(&reaper->fs->lock); -+ realrootmnt = mntget(reaper->fs->root.mnt); -+ realroot = dget(reaper->fs->root.dentry); -+ read_unlock(&reaper->fs->lock); -+ -+ read_lock(¤t->fs->lock); -+ currentmnt = mntget(current->fs->root.mnt); -+ currentroot = dget(current->fs->root.dentry); -+ read_unlock(¤t->fs->lock); -+ -+ spin_lock(&dcache_lock); -+ for (;;) { -+ if (unlikely((dentry == realroot && mnt == realrootmnt) -+ || (dentry == currentroot && mnt == currentmnt))) -+ break; -+ if (unlikely(dentry == mnt->mnt_root || IS_ROOT(dentry))) { -+ if (mnt->mnt_parent == mnt) -+ break; -+ dentry = mnt->mnt_mountpoint; -+ mnt = mnt->mnt_parent; -+ continue; -+ } -+ dentry = dentry->d_parent; -+ } -+ spin_unlock(&dcache_lock); -+ -+ dput(currentroot); -+ mntput(currentmnt); -+ -+ /* access is outside of chroot */ -+ if (dentry == realroot && mnt == realrootmnt) -+ ret = 0; -+ -+ dput(realroot); -+ mntput(realrootmnt); -+ return ret; -+} -+#endif -+ -+int -+gr_chroot_fchdir(struct dentry *u_dentry, struct vfsmount *u_mnt) -+{ -+#ifdef CONFIG_GRKERNSEC_CHROOT_FCHDIR -+ if (!grsec_enable_chroot_fchdir) -+ return 1; -+ -+ if (!proc_is_chrooted(current)) -+ return 1; -+ else if (!gr_is_outside_chroot(u_dentry, u_mnt)) { -+ gr_log_fs_generic(GR_DONT_AUDIT, GR_CHROOT_FCHDIR_MSG, u_dentry, u_mnt); -+ return 0; -+ } -+#endif -+ return 1; -+} -+ -+int -+gr_chroot_shmat(const pid_t shm_cprid, const pid_t shm_lapid, -+ const time_t shm_createtime) -+{ -+#ifdef CONFIG_GRKERNSEC_CHROOT_SHMAT -+ struct pid *pid = NULL; -+ time_t starttime; -+ -+ if (unlikely(!grsec_enable_chroot_shmat)) -+ return 1; -+ -+ if (likely(!proc_is_chrooted(current))) -+ return 1; -+ -+ read_lock(&tasklist_lock); -+ -+ pid = find_vpid(shm_cprid); -+ if (pid) { -+ struct task_struct *p; -+ p = pid_task(pid, PIDTYPE_PID); -+ task_lock(p); -+ starttime = p->start_time.tv_sec; -+ if (unlikely(!have_same_root(current, p) && -+ time_before_eq((unsigned long)starttime, (unsigned long)shm_createtime))) { -+ task_unlock(p); -+ read_unlock(&tasklist_lock); -+ gr_log_noargs(GR_DONT_AUDIT, GR_SHMAT_CHROOT_MSG); -+ return 0; -+ } -+ task_unlock(p); -+ } else { -+ pid = find_vpid(shm_lapid); -+ if (pid) { -+ struct task_struct *p; -+ p = pid_task(pid, PIDTYPE_PID); -+ task_lock(p); -+ if (unlikely(!have_same_root(current, p))) { -+ task_unlock(p); -+ read_unlock(&tasklist_lock); -+ gr_log_noargs(GR_DONT_AUDIT, GR_SHMAT_CHROOT_MSG); -+ return 0; -+ } -+ task_unlock(p); -+ } -+ } -+ -+ read_unlock(&tasklist_lock); -+#endif -+ return 1; -+} -+ -+void -+gr_log_chroot_exec(const struct dentry *dentry, const struct vfsmount *mnt) -+{ -+#ifdef CONFIG_GRKERNSEC_CHROOT_EXECLOG -+ if (grsec_enable_chroot_execlog && proc_is_chrooted(current)) -+ gr_log_fs_generic(GR_DO_AUDIT, GR_EXEC_CHROOT_MSG, dentry, mnt); -+#endif -+ return; -+} -+ -+int -+gr_handle_chroot_mknod(const struct dentry *dentry, -+ const struct vfsmount *mnt, const int mode) -+{ -+#ifdef CONFIG_GRKERNSEC_CHROOT_MKNOD -+ if (grsec_enable_chroot_mknod && !S_ISFIFO(mode) && !S_ISREG(mode) && -+ proc_is_chrooted(current)) { -+ gr_log_fs_generic(GR_DONT_AUDIT, GR_MKNOD_CHROOT_MSG, dentry, mnt); -+ return -EPERM; -+ } -+#endif -+ return 0; -+} -+ -+int -+gr_handle_chroot_mount(const struct dentry *dentry, -+ const struct vfsmount *mnt, const char *dev_name) -+{ -+#ifdef CONFIG_GRKERNSEC_CHROOT_MOUNT -+ if (grsec_enable_chroot_mount && proc_is_chrooted(current)) { -+ gr_log_str_fs(GR_DONT_AUDIT, GR_MOUNT_CHROOT_MSG, dev_name, dentry, mnt); -+ return -EPERM; -+ } -+#endif -+ return 0; -+} -+ -+int -+gr_handle_chroot_pivot(void) -+{ -+#ifdef CONFIG_GRKERNSEC_CHROOT_PIVOT -+ if (grsec_enable_chroot_pivot && proc_is_chrooted(current)) { -+ gr_log_noargs(GR_DONT_AUDIT, GR_PIVOT_CHROOT_MSG); -+ return -EPERM; -+ } -+#endif -+ return 0; -+} -+ -+int -+gr_handle_chroot_chroot(const struct dentry *dentry, const struct vfsmount *mnt) -+{ -+#ifdef CONFIG_GRKERNSEC_CHROOT_DOUBLE -+ if (grsec_enable_chroot_double && proc_is_chrooted(current) && -+ !gr_is_outside_chroot(dentry, mnt)) { -+ gr_log_fs_generic(GR_DONT_AUDIT, GR_CHROOT_CHROOT_MSG, dentry, mnt); -+ return -EPERM; -+ } -+#endif -+ return 0; -+} -+ -+void -+gr_handle_chroot_caps(struct task_struct *task) -+{ -+#ifdef CONFIG_GRKERNSEC_CHROOT_CAPS -+ if (grsec_enable_chroot_caps && proc_is_chrooted(task)) { -+ kernel_cap_t chroot_caps = GR_CHROOT_CAPS; -+ task->cap_permitted = -+ cap_drop(task->cap_permitted, chroot_caps); -+ task->cap_inheritable = -+ cap_drop(task->cap_inheritable, chroot_caps); -+ task->cap_effective = -+ cap_drop(task->cap_effective, chroot_caps); -+ } -+#endif -+ return; -+} -+ -+int -+gr_handle_chroot_sysctl(const int op) -+{ -+#ifdef CONFIG_GRKERNSEC_CHROOT_SYSCTL -+ if (grsec_enable_chroot_sysctl && proc_is_chrooted(current) -+ && (op & MAY_WRITE)) -+ return -EACCES; -+#endif -+ return 0; -+} -+ -+void -+gr_handle_chroot_chdir(struct path *path) -+{ -+#ifdef CONFIG_GRKERNSEC_CHROOT_CHDIR -+ if (grsec_enable_chroot_chdir) -+ set_fs_pwd(current->fs, path); -+#endif -+ return; -+} -+ -+int -+gr_handle_chroot_chmod(const struct dentry *dentry, -+ const struct vfsmount *mnt, const int mode) -+{ -+#ifdef CONFIG_GRKERNSEC_CHROOT_CHMOD -+ if (grsec_enable_chroot_chmod && -+ ((mode & S_ISUID) || ((mode & (S_ISGID | S_IXGRP)) == (S_ISGID | S_IXGRP))) && -+ proc_is_chrooted(current)) { -+ gr_log_fs_generic(GR_DONT_AUDIT, GR_CHMOD_CHROOT_MSG, dentry, mnt); -+ return -EPERM; -+ } -+#endif -+ return 0; -+} -+ -+#ifdef CONFIG_SECURITY -+EXPORT_SYMBOL(gr_handle_chroot_caps); -+#endif -diff -urNp linux-2.6.28.8/grsecurity/grsec_disabled.c linux-2.6.28.8/grsecurity/grsec_disabled.c ---- linux-2.6.28.8/grsecurity/grsec_disabled.c 1969-12-31 19:00:00.000000000 -0500 -+++ linux-2.6.28.8/grsecurity/grsec_disabled.c 2009-03-07 14:23:04.000000000 -0500 -@@ -0,0 +1,418 @@ -+#include <linux/kernel.h> -+#include <linux/module.h> -+#include <linux/sched.h> -+#include <linux/file.h> -+#include <linux/fs.h> -+#include <linux/kdev_t.h> -+#include <linux/net.h> -+#include <linux/in.h> -+#include <linux/ip.h> -+#include <linux/skbuff.h> -+#include <linux/sysctl.h> -+ -+#ifdef CONFIG_PAX_HAVE_ACL_FLAGS -+void -+pax_set_initial_flags(struct linux_binprm *bprm) -+{ -+ return; -+} -+#endif -+ -+#ifdef CONFIG_SYSCTL -+__u32 -+gr_handle_sysctl(const struct ctl_table * table, const int op) -+{ -+ return 0; -+} -+#endif -+ -+int -+gr_acl_is_enabled(void) -+{ -+ return 0; -+} -+ -+int -+gr_handle_rawio(const struct inode *inode) -+{ -+ return 0; -+} -+ -+void -+gr_acl_handle_psacct(struct task_struct *task, const long code) -+{ -+ return; -+} -+ -+int -+gr_handle_ptrace(struct task_struct *task, const long request) -+{ -+ return 0; -+} -+ -+int -+gr_handle_proc_ptrace(struct task_struct *task) -+{ -+ return 0; -+} -+ -+void -+gr_learn_resource(const struct task_struct *task, -+ const int res, const unsigned long wanted, const int gt) -+{ -+ return; -+} -+ -+int -+gr_set_acls(const int type) -+{ -+ return 0; -+} -+ -+int -+gr_check_hidden_task(const struct task_struct *tsk) -+{ -+ return 0; -+} -+ -+int -+gr_check_protected_task(const struct task_struct *task) -+{ -+ return 0; -+} -+ -+void -+gr_copy_label(struct task_struct *tsk) -+{ -+ return; -+} -+ -+void -+gr_set_pax_flags(struct task_struct *task) -+{ -+ return; -+} -+ -+int -+gr_set_proc_label(const struct dentry *dentry, const struct vfsmount *mnt) -+{ -+ return 0; -+} -+ -+void -+gr_handle_delete(const ino_t ino, const dev_t dev) -+{ -+ return; -+} -+ -+void -+gr_handle_create(const struct dentry *dentry, const struct vfsmount *mnt) -+{ -+ return; -+} -+ -+void -+gr_handle_crash(struct task_struct *task, const int sig) -+{ -+ return; -+} -+ -+int -+gr_check_crash_exec(const struct file *filp) -+{ -+ return 0; -+} -+ -+int -+gr_check_crash_uid(const uid_t uid) -+{ -+ return 0; -+} -+ -+void -+gr_handle_rename(struct inode *old_dir, struct inode *new_dir, -+ struct dentry *old_dentry, -+ struct dentry *new_dentry, -+ struct vfsmount *mnt, const __u8 replace) -+{ -+ return; -+} -+ -+int -+gr_search_socket(const int family, const int type, const int protocol) -+{ -+ return 1; -+} -+ -+int -+gr_search_connectbind(const int mode, const struct socket *sock, -+ const struct sockaddr_in *addr) -+{ -+ return 0; -+} -+ -+int -+gr_task_is_capable(struct task_struct *task, const int cap) -+{ -+ return 1; -+} -+ -+int -+gr_is_capable_nolog(const int cap) -+{ -+ return 1; -+} -+ -+void -+gr_handle_alertkill(struct task_struct *task) -+{ -+ return; -+} -+ -+__u32 -+gr_acl_handle_execve(const struct dentry * dentry, const struct vfsmount * mnt) -+{ -+ return 1; -+} -+ -+__u32 -+gr_acl_handle_hidden_file(const struct dentry * dentry, -+ const struct vfsmount * mnt) -+{ -+ return 1; -+} -+ -+__u32 -+gr_acl_handle_open(const struct dentry * dentry, const struct vfsmount * mnt, -+ const int fmode) -+{ -+ return 1; -+} -+ -+__u32 -+gr_acl_handle_rmdir(const struct dentry * dentry, const struct vfsmount * mnt) -+{ -+ return 1; -+} -+ -+__u32 -+gr_acl_handle_unlink(const struct dentry * dentry, const struct vfsmount * mnt) -+{ -+ return 1; -+} -+ -+int -+gr_acl_handle_mmap(const struct file *file, const unsigned long prot, -+ unsigned int *vm_flags) -+{ -+ return 1; -+} -+ -+__u32 -+gr_acl_handle_truncate(const struct dentry * dentry, -+ const struct vfsmount * mnt) -+{ -+ return 1; -+} -+ -+__u32 -+gr_acl_handle_utime(const struct dentry * dentry, const struct vfsmount * mnt) -+{ -+ return 1; -+} -+ -+__u32 -+gr_acl_handle_access(const struct dentry * dentry, -+ const struct vfsmount * mnt, const int fmode) -+{ -+ return 1; -+} -+ -+__u32 -+gr_acl_handle_fchmod(const struct dentry * dentry, const struct vfsmount * mnt, -+ mode_t mode) -+{ -+ return 1; -+} -+ -+__u32 -+gr_acl_handle_chmod(const struct dentry * dentry, const struct vfsmount * mnt, -+ mode_t mode) -+{ -+ return 1; -+} -+ -+__u32 -+gr_acl_handle_chown(const struct dentry * dentry, const struct vfsmount * mnt) -+{ -+ return 1; -+} -+ -+void -+grsecurity_init(void) -+{ -+ return; -+} -+ -+__u32 -+gr_acl_handle_mknod(const struct dentry * new_dentry, -+ const struct dentry * parent_dentry, -+ const struct vfsmount * parent_mnt, -+ const int mode) -+{ -+ return 1; -+} -+ -+__u32 -+gr_acl_handle_mkdir(const struct dentry * new_dentry, -+ const struct dentry * parent_dentry, -+ const struct vfsmount * parent_mnt) -+{ -+ return 1; -+} -+ -+__u32 -+gr_acl_handle_symlink(const struct dentry * new_dentry, -+ const struct dentry * parent_dentry, -+ const struct vfsmount * parent_mnt, const char *from) -+{ -+ return 1; -+} -+ -+__u32 -+gr_acl_handle_link(const struct dentry * new_dentry, -+ const struct dentry * parent_dentry, -+ const struct vfsmount * parent_mnt, -+ const struct dentry * old_dentry, -+ const struct vfsmount * old_mnt, const char *to) -+{ -+ return 1; -+} -+ -+int -+gr_acl_handle_rename(const struct dentry *new_dentry, -+ const struct dentry *parent_dentry, -+ const struct vfsmount *parent_mnt, -+ const struct dentry *old_dentry, -+ const struct inode *old_parent_inode, -+ const struct vfsmount *old_mnt, const char *newname) -+{ -+ return 0; -+} -+ -+int -+gr_acl_handle_filldir(const struct file *file, const char *name, -+ const int namelen, const ino_t ino) -+{ -+ return 1; -+} -+ -+int -+gr_handle_shmat(const pid_t shm_cprid, const pid_t shm_lapid, -+ const time_t shm_createtime, const uid_t cuid, const int shmid) -+{ -+ return 1; -+} -+ -+int -+gr_search_bind(const struct socket *sock, const struct sockaddr_in *addr) -+{ -+ return 0; -+} -+ -+int -+gr_search_accept(const struct socket *sock) -+{ -+ return 0; -+} -+ -+int -+gr_search_listen(const struct socket *sock) -+{ -+ return 0; -+} -+ -+int -+gr_search_connect(const struct socket *sock, const struct sockaddr_in *addr) -+{ -+ return 0; -+} -+ -+__u32 -+gr_acl_handle_unix(const struct dentry * dentry, const struct vfsmount * mnt) -+{ -+ return 1; -+} -+ -+__u32 -+gr_acl_handle_creat(const struct dentry * dentry, -+ const struct dentry * p_dentry, -+ const struct vfsmount * p_mnt, const int fmode, -+ const int imode) -+{ -+ return 1; -+} -+ -+void -+gr_acl_handle_exit(void) -+{ -+ return; -+} -+ -+int -+gr_acl_handle_mprotect(const struct file *file, const unsigned long prot) -+{ -+ return 1; -+} -+ -+void -+gr_set_role_label(const uid_t uid, const gid_t gid) -+{ -+ return; -+} -+ -+int -+gr_acl_handle_procpidmem(const struct task_struct *task) -+{ -+ return 0; -+} -+ -+int -+gr_search_udp_recvmsg(const struct sock *sk, const struct sk_buff *skb) -+{ -+ return 0; -+} -+ -+int -+gr_search_udp_sendmsg(const struct sock *sk, const struct sockaddr_in *addr) -+{ -+ return 0; -+} -+ -+void -+gr_set_kernel_label(struct task_struct *task) -+{ -+ return; -+} -+ -+int -+gr_check_user_change(int real, int effective, int fs) -+{ -+ return 0; -+} -+ -+int -+gr_check_group_change(int real, int effective, int fs) -+{ -+ return 0; -+} -+ -+ -+EXPORT_SYMBOL(gr_task_is_capable); -+EXPORT_SYMBOL(gr_is_capable_nolog); -+EXPORT_SYMBOL(gr_learn_resource); -+EXPORT_SYMBOL(gr_set_kernel_label); -+#ifdef CONFIG_SECURITY -+EXPORT_SYMBOL(gr_check_user_change); -+EXPORT_SYMBOL(gr_check_group_change); -+#endif -diff -urNp linux-2.6.28.8/grsecurity/grsec_exec.c linux-2.6.28.8/grsecurity/grsec_exec.c ---- linux-2.6.28.8/grsecurity/grsec_exec.c 1969-12-31 19:00:00.000000000 -0500 -+++ linux-2.6.28.8/grsecurity/grsec_exec.c 2009-02-21 09:37:49.000000000 -0500 -@@ -0,0 +1,88 @@ -+#include <linux/kernel.h> -+#include <linux/sched.h> -+#include <linux/file.h> -+#include <linux/binfmts.h> -+#include <linux/smp_lock.h> -+#include <linux/fs.h> -+#include <linux/types.h> -+#include <linux/grdefs.h> -+#include <linux/grinternal.h> -+#include <linux/capability.h> -+ -+#include <asm/uaccess.h> -+ -+#ifdef CONFIG_GRKERNSEC_EXECLOG -+static char gr_exec_arg_buf[132]; -+static DECLARE_MUTEX(gr_exec_arg_sem); -+#endif -+ -+int -+gr_handle_nproc(void) -+{ -+#ifdef CONFIG_GRKERNSEC_EXECVE -+ if (grsec_enable_execve && current->user && -+ (atomic_read(¤t->user->processes) > -+ current->signal->rlim[RLIMIT_NPROC].rlim_cur) && -+ !capable(CAP_SYS_ADMIN) && !capable(CAP_SYS_RESOURCE)) { -+ gr_log_noargs(GR_DONT_AUDIT, GR_NPROC_MSG); -+ return -EAGAIN; -+ } -+#endif -+ return 0; -+} -+ -+void -+gr_handle_exec_args(struct linux_binprm *bprm, const char __user *__user *argv) -+{ -+#ifdef CONFIG_GRKERNSEC_EXECLOG -+ char *grarg = gr_exec_arg_buf; -+ unsigned int i, x, execlen = 0; -+ char c; -+ -+ if (!((grsec_enable_execlog && grsec_enable_group && -+ in_group_p(grsec_audit_gid)) -+ || (grsec_enable_execlog && !grsec_enable_group))) -+ return; -+ -+ down(&gr_exec_arg_sem); -+ memset(grarg, 0, sizeof(gr_exec_arg_buf)); -+ -+ if (unlikely(argv == NULL)) -+ goto log; -+ -+ for (i = 0; i < bprm->argc && execlen < 128; i++) { -+ const char __user *p; -+ unsigned int len; -+ -+ if (copy_from_user(&p, argv + i, sizeof(p))) -+ goto log; -+ if (!p) -+ goto log; -+ len = strnlen_user(p, 128 - execlen); -+ if (len > 128 - execlen) -+ len = 128 - execlen; -+ else if (len > 0) -+ len--; -+ if (copy_from_user(grarg + execlen, p, len)) -+ goto log; -+ -+ /* rewrite unprintable characters */ -+ for (x = 0; x < len; x++) { -+ c = *(grarg + execlen + x); -+ if (c < 32 || c > 126) -+ *(grarg + execlen + x) = ' '; -+ } -+ -+ execlen += len; -+ *(grarg + execlen) = ' '; -+ *(grarg + execlen + 1) = '\0'; -+ execlen++; -+ } -+ -+ log: -+ gr_log_fs_str(GR_DO_AUDIT, GR_EXEC_AUDIT_MSG, bprm->file->f_path.dentry, -+ bprm->file->f_path.mnt, grarg); -+ up(&gr_exec_arg_sem); -+#endif -+ return; -+} -diff -urNp linux-2.6.28.8/grsecurity/grsec_fifo.c linux-2.6.28.8/grsecurity/grsec_fifo.c ---- linux-2.6.28.8/grsecurity/grsec_fifo.c 1969-12-31 19:00:00.000000000 -0500 -+++ linux-2.6.28.8/grsecurity/grsec_fifo.c 2009-02-21 09:37:49.000000000 -0500 -@@ -0,0 +1,22 @@ -+#include <linux/kernel.h> -+#include <linux/sched.h> -+#include <linux/fs.h> -+#include <linux/file.h> -+#include <linux/grinternal.h> -+ -+int -+gr_handle_fifo(const struct dentry *dentry, const struct vfsmount *mnt, -+ const struct dentry *dir, const int flag, const int acc_mode) -+{ -+#ifdef CONFIG_GRKERNSEC_FIFO -+ if (grsec_enable_fifo && S_ISFIFO(dentry->d_inode->i_mode) && -+ !(flag & O_EXCL) && (dir->d_inode->i_mode & S_ISVTX) && -+ (dentry->d_inode->i_uid != dir->d_inode->i_uid) && -+ (current->fsuid != dentry->d_inode->i_uid)) { -+ if (!generic_permission(dentry->d_inode, acc_mode, NULL)) -+ gr_log_fs_int2(GR_DONT_AUDIT, GR_FIFO_MSG, dentry, mnt, dentry->d_inode->i_uid, dentry->d_inode->i_gid); -+ return -EACCES; -+ } -+#endif -+ return 0; -+} -diff -urNp linux-2.6.28.8/grsecurity/grsec_fork.c linux-2.6.28.8/grsecurity/grsec_fork.c ---- linux-2.6.28.8/grsecurity/grsec_fork.c 1969-12-31 19:00:00.000000000 -0500 -+++ linux-2.6.28.8/grsecurity/grsec_fork.c 2009-02-21 09:37:49.000000000 -0500 -@@ -0,0 +1,15 @@ -+#include <linux/kernel.h> -+#include <linux/sched.h> -+#include <linux/grsecurity.h> -+#include <linux/grinternal.h> -+#include <linux/errno.h> -+ -+void -+gr_log_forkfail(const int retval) -+{ -+#ifdef CONFIG_GRKERNSEC_FORKFAIL -+ if (grsec_enable_forkfail && retval != -ERESTARTNOINTR) -+ gr_log_int(GR_DONT_AUDIT, GR_FAILFORK_MSG, retval); -+#endif -+ return; -+} -diff -urNp linux-2.6.28.8/grsecurity/grsec_init.c linux-2.6.28.8/grsecurity/grsec_init.c ---- linux-2.6.28.8/grsecurity/grsec_init.c 1969-12-31 19:00:00.000000000 -0500 -+++ linux-2.6.28.8/grsecurity/grsec_init.c 2009-02-21 09:37:49.000000000 -0500 -@@ -0,0 +1,230 @@ -+#include <linux/kernel.h> -+#include <linux/sched.h> -+#include <linux/mm.h> -+#include <linux/smp_lock.h> -+#include <linux/gracl.h> -+#include <linux/slab.h> -+#include <linux/vmalloc.h> -+#include <linux/percpu.h> -+ -+int grsec_enable_link; -+int grsec_enable_dmesg; -+int grsec_enable_fifo; -+int grsec_enable_execve; -+int grsec_enable_execlog; -+int grsec_enable_signal; -+int grsec_enable_forkfail; -+int grsec_enable_time; -+int grsec_enable_audit_textrel; -+int grsec_enable_group; -+int grsec_audit_gid; -+int grsec_enable_chdir; -+int grsec_enable_audit_ipc; -+int grsec_enable_mount; -+int grsec_enable_chroot_findtask; -+int grsec_enable_chroot_mount; -+int grsec_enable_chroot_shmat; -+int grsec_enable_chroot_fchdir; -+int grsec_enable_chroot_double; -+int grsec_enable_chroot_pivot; -+int grsec_enable_chroot_chdir; -+int grsec_enable_chroot_chmod; -+int grsec_enable_chroot_mknod; -+int grsec_enable_chroot_nice; -+int grsec_enable_chroot_execlog; -+int grsec_enable_chroot_caps; -+int grsec_enable_chroot_sysctl; -+int grsec_enable_chroot_unix; -+int grsec_enable_tpe; -+int grsec_tpe_gid; -+int grsec_enable_tpe_all; -+int grsec_enable_socket_all; -+int grsec_socket_all_gid; -+int grsec_enable_socket_client; -+int grsec_socket_client_gid; -+int grsec_enable_socket_server; -+int grsec_socket_server_gid; -+int grsec_resource_logging; -+int grsec_lock; -+ -+DEFINE_SPINLOCK(grsec_alert_lock); -+unsigned long grsec_alert_wtime = 0; -+unsigned long grsec_alert_fyet = 0; -+ -+DEFINE_SPINLOCK(grsec_audit_lock); -+ -+DEFINE_RWLOCK(grsec_exec_file_lock); -+ -+char *gr_shared_page[4]; -+ -+char *gr_alert_log_fmt; -+char *gr_audit_log_fmt; -+char *gr_alert_log_buf; -+char *gr_audit_log_buf; -+ -+extern struct gr_arg *gr_usermode; -+extern unsigned char *gr_system_salt; -+extern unsigned char *gr_system_sum; -+ -+void -+grsecurity_init(void) -+{ -+ int j; -+ /* create the per-cpu shared pages */ -+ -+#ifdef CONFIG_X86 -+ memset((char *)(0x41a + PAGE_OFFSET), 0, 36); -+#endif -+ -+ for (j = 0; j < 4; j++) { -+ gr_shared_page[j] = (char *)__alloc_percpu(PAGE_SIZE); -+ if (gr_shared_page[j] == NULL) { -+ panic("Unable to allocate grsecurity shared page"); -+ return; -+ } -+ } -+ -+ /* allocate log buffers */ -+ gr_alert_log_fmt = kmalloc(512, GFP_KERNEL); -+ if (!gr_alert_log_fmt) { -+ panic("Unable to allocate grsecurity alert log format buffer"); -+ return; -+ } -+ gr_audit_log_fmt = kmalloc(512, GFP_KERNEL); -+ if (!gr_audit_log_fmt) { -+ panic("Unable to allocate grsecurity audit log format buffer"); -+ return; -+ } -+ gr_alert_log_buf = (char *) get_zeroed_page(GFP_KERNEL); -+ if (!gr_alert_log_buf) { -+ panic("Unable to allocate grsecurity alert log buffer"); -+ return; -+ } -+ gr_audit_log_buf = (char *) get_zeroed_page(GFP_KERNEL); -+ if (!gr_audit_log_buf) { -+ panic("Unable to allocate grsecurity audit log buffer"); -+ return; -+ } -+ -+ /* allocate memory for authentication structure */ -+ gr_usermode = kmalloc(sizeof(struct gr_arg), GFP_KERNEL); -+ gr_system_salt = kmalloc(GR_SALT_LEN, GFP_KERNEL); -+ gr_system_sum = kmalloc(GR_SHA_LEN, GFP_KERNEL); -+ -+ if (!gr_usermode || !gr_system_salt || !gr_system_sum) { -+ panic("Unable to allocate grsecurity authentication structure"); -+ return; -+ } -+ -+#if !defined(CONFIG_GRKERNSEC_SYSCTL) || defined(CONFIG_GRKERNSEC_SYSCTL_ON) -+#ifndef CONFIG_GRKERNSEC_SYSCTL -+ grsec_lock = 1; -+#endif -+#ifdef CONFIG_GRKERNSEC_AUDIT_TEXTREL -+ grsec_enable_audit_textrel = 1; -+#endif -+#ifdef CONFIG_GRKERNSEC_AUDIT_GROUP -+ grsec_enable_group = 1; -+ grsec_audit_gid = CONFIG_GRKERNSEC_AUDIT_GID; -+#endif -+#ifdef CONFIG_GRKERNSEC_AUDIT_CHDIR -+ grsec_enable_chdir = 1; -+#endif -+#ifdef CONFIG_GRKERNSEC_AUDIT_IPC -+ grsec_enable_audit_ipc = 1; -+#endif -+#ifdef CONFIG_GRKERNSEC_AUDIT_MOUNT -+ grsec_enable_mount = 1; -+#endif -+#ifdef CONFIG_GRKERNSEC_LINK -+ grsec_enable_link = 1; -+#endif -+#ifdef CONFIG_GRKERNSEC_DMESG -+ grsec_enable_dmesg = 1; -+#endif -+#ifdef CONFIG_GRKERNSEC_FIFO -+ grsec_enable_fifo = 1; -+#endif -+#ifdef CONFIG_GRKERNSEC_EXECVE -+ grsec_enable_execve = 1; -+#endif -+#ifdef CONFIG_GRKERNSEC_EXECLOG -+ grsec_enable_execlog = 1; -+#endif -+#ifdef CONFIG_GRKERNSEC_SIGNAL -+ grsec_enable_signal = 1; -+#endif -+#ifdef CONFIG_GRKERNSEC_FORKFAIL -+ grsec_enable_forkfail = 1; -+#endif -+#ifdef CONFIG_GRKERNSEC_TIME -+ grsec_enable_time = 1; -+#endif -+#ifdef CONFIG_GRKERNSEC_RESLOG -+ grsec_resource_logging = 1; -+#endif -+#ifdef CONFIG_GRKERNSEC_CHROOT_FINDTASK -+ grsec_enable_chroot_findtask = 1; -+#endif -+#ifdef CONFIG_GRKERNSEC_CHROOT_UNIX -+ grsec_enable_chroot_unix = 1; -+#endif -+#ifdef CONFIG_GRKERNSEC_CHROOT_MOUNT -+ grsec_enable_chroot_mount = 1; -+#endif -+#ifdef CONFIG_GRKERNSEC_CHROOT_FCHDIR -+ grsec_enable_chroot_fchdir = 1; -+#endif -+#ifdef CONFIG_GRKERNSEC_CHROOT_SHMAT -+ grsec_enable_chroot_shmat = 1; -+#endif -+#ifdef CONFIG_GRKERNSEC_CHROOT_DOUBLE -+ grsec_enable_chroot_double = 1; -+#endif -+#ifdef CONFIG_GRKERNSEC_CHROOT_PIVOT -+ grsec_enable_chroot_pivot = 1; -+#endif -+#ifdef CONFIG_GRKERNSEC_CHROOT_CHDIR -+ grsec_enable_chroot_chdir = 1; -+#endif -+#ifdef CONFIG_GRKERNSEC_CHROOT_CHMOD -+ grsec_enable_chroot_chmod = 1; -+#endif -+#ifdef CONFIG_GRKERNSEC_CHROOT_MKNOD -+ grsec_enable_chroot_mknod = 1; -+#endif -+#ifdef CONFIG_GRKERNSEC_CHROOT_NICE -+ grsec_enable_chroot_nice = 1; -+#endif -+#ifdef CONFIG_GRKERNSEC_CHROOT_EXECLOG -+ grsec_enable_chroot_execlog = 1; -+#endif -+#ifdef CONFIG_GRKERNSEC_CHROOT_CAPS -+ grsec_enable_chroot_caps = 1; -+#endif -+#ifdef CONFIG_GRKERNSEC_CHROOT_SYSCTL -+ grsec_enable_chroot_sysctl = 1; -+#endif -+#ifdef CONFIG_GRKERNSEC_TPE -+ grsec_enable_tpe = 1; -+ grsec_tpe_gid = CONFIG_GRKERNSEC_TPE_GID; -+#ifdef CONFIG_GRKERNSEC_TPE_ALL -+ grsec_enable_tpe_all = 1; -+#endif -+#endif -+#ifdef CONFIG_GRKERNSEC_SOCKET_ALL -+ grsec_enable_socket_all = 1; -+ grsec_socket_all_gid = CONFIG_GRKERNSEC_SOCKET_ALL_GID; -+#endif -+#ifdef CONFIG_GRKERNSEC_SOCKET_CLIENT -+ grsec_enable_socket_client = 1; -+ grsec_socket_client_gid = CONFIG_GRKERNSEC_SOCKET_CLIENT_GID; -+#endif -+#ifdef CONFIG_GRKERNSEC_SOCKET_SERVER -+ grsec_enable_socket_server = 1; -+ grsec_socket_server_gid = CONFIG_GRKERNSEC_SOCKET_SERVER_GID; -+#endif -+#endif -+ -+ return; -+} -diff -urNp linux-2.6.28.8/grsecurity/grsec_ipc.c linux-2.6.28.8/grsecurity/grsec_ipc.c ---- linux-2.6.28.8/grsecurity/grsec_ipc.c 1969-12-31 19:00:00.000000000 -0500 -+++ linux-2.6.28.8/grsecurity/grsec_ipc.c 2009-02-21 09:37:49.000000000 -0500 -@@ -0,0 +1,81 @@ -+#include <linux/kernel.h> -+#include <linux/sched.h> -+#include <linux/types.h> -+#include <linux/ipc.h> -+#include <linux/grsecurity.h> -+#include <linux/grinternal.h> -+ -+void -+gr_log_msgget(const int ret, const int msgflg) -+{ -+#ifdef CONFIG_GRKERNSEC_AUDIT_IPC -+ if (((grsec_enable_group && in_group_p(grsec_audit_gid) && -+ grsec_enable_audit_ipc) || (grsec_enable_audit_ipc && -+ !grsec_enable_group)) && (ret >= 0) -+ && (msgflg & IPC_CREAT)) -+ gr_log_noargs(GR_DO_AUDIT, GR_MSGQ_AUDIT_MSG); -+#endif -+ return; -+} -+ -+void -+gr_log_msgrm(const uid_t uid, const uid_t cuid) -+{ -+#ifdef CONFIG_GRKERNSEC_AUDIT_IPC -+ if ((grsec_enable_group && in_group_p(grsec_audit_gid) && -+ grsec_enable_audit_ipc) || -+ (grsec_enable_audit_ipc && !grsec_enable_group)) -+ gr_log_int_int(GR_DO_AUDIT, GR_MSGQR_AUDIT_MSG, uid, cuid); -+#endif -+ return; -+} -+ -+void -+gr_log_semget(const int err, const int semflg) -+{ -+#ifdef CONFIG_GRKERNSEC_AUDIT_IPC -+ if (((grsec_enable_group && in_group_p(grsec_audit_gid) && -+ grsec_enable_audit_ipc) || (grsec_enable_audit_ipc && -+ !grsec_enable_group)) && (err >= 0) -+ && (semflg & IPC_CREAT)) -+ gr_log_noargs(GR_DO_AUDIT, GR_SEM_AUDIT_MSG); -+#endif -+ return; -+} -+ -+void -+gr_log_semrm(const uid_t uid, const uid_t cuid) -+{ -+#ifdef CONFIG_GRKERNSEC_AUDIT_IPC -+ if ((grsec_enable_group && in_group_p(grsec_audit_gid) && -+ grsec_enable_audit_ipc) || -+ (grsec_enable_audit_ipc && !grsec_enable_group)) -+ gr_log_int_int(GR_DO_AUDIT, GR_SEMR_AUDIT_MSG, uid, cuid); -+#endif -+ return; -+} -+ -+void -+gr_log_shmget(const int err, const int shmflg, const size_t size) -+{ -+#ifdef CONFIG_GRKERNSEC_AUDIT_IPC -+ if (((grsec_enable_group && in_group_p(grsec_audit_gid) && -+ grsec_enable_audit_ipc) || (grsec_enable_audit_ipc && -+ !grsec_enable_group)) && (err >= 0) -+ && (shmflg & IPC_CREAT)) -+ gr_log_int(GR_DO_AUDIT, GR_SHM_AUDIT_MSG, size); -+#endif -+ return; -+} -+ -+void -+gr_log_shmrm(const uid_t uid, const uid_t cuid) -+{ -+#ifdef CONFIG_GRKERNSEC_AUDIT_IPC -+ if ((grsec_enable_group && in_group_p(grsec_audit_gid) && -+ grsec_enable_audit_ipc) || -+ (grsec_enable_audit_ipc && !grsec_enable_group)) -+ gr_log_int_int(GR_DO_AUDIT, GR_SHMR_AUDIT_MSG, uid, cuid); -+#endif -+ return; -+} -diff -urNp linux-2.6.28.8/grsecurity/grsec_link.c linux-2.6.28.8/grsecurity/grsec_link.c ---- linux-2.6.28.8/grsecurity/grsec_link.c 1969-12-31 19:00:00.000000000 -0500 -+++ linux-2.6.28.8/grsecurity/grsec_link.c 2009-02-21 09:37:49.000000000 -0500 -@@ -0,0 +1,39 @@ -+#include <linux/kernel.h> -+#include <linux/sched.h> -+#include <linux/fs.h> -+#include <linux/file.h> -+#include <linux/grinternal.h> -+ -+int -+gr_handle_follow_link(const struct inode *parent, -+ const struct inode *inode, -+ const struct dentry *dentry, const struct vfsmount *mnt) -+{ -+#ifdef CONFIG_GRKERNSEC_LINK -+ if (grsec_enable_link && S_ISLNK(inode->i_mode) && -+ (parent->i_mode & S_ISVTX) && (parent->i_uid != inode->i_uid) && -+ (parent->i_mode & S_IWOTH) && (current->fsuid != inode->i_uid)) { -+ gr_log_fs_int2(GR_DONT_AUDIT, GR_SYMLINK_MSG, dentry, mnt, inode->i_uid, inode->i_gid); -+ return -EACCES; -+ } -+#endif -+ return 0; -+} -+ -+int -+gr_handle_hardlink(const struct dentry *dentry, -+ const struct vfsmount *mnt, -+ struct inode *inode, const int mode, const char *to) -+{ -+#ifdef CONFIG_GRKERNSEC_LINK -+ if (grsec_enable_link && current->fsuid != inode->i_uid && -+ (!S_ISREG(mode) || (mode & S_ISUID) || -+ ((mode & (S_ISGID | S_IXGRP)) == (S_ISGID | S_IXGRP)) || -+ (generic_permission(inode, MAY_READ | MAY_WRITE, NULL))) && -+ !capable(CAP_FOWNER) && current->uid) { -+ gr_log_fs_int2_str(GR_DONT_AUDIT, GR_HARDLINK_MSG, dentry, mnt, inode->i_uid, inode->i_gid, to); -+ return -EPERM; -+ } -+#endif -+ return 0; -+} -diff -urNp linux-2.6.28.8/grsecurity/grsec_log.c linux-2.6.28.8/grsecurity/grsec_log.c ---- linux-2.6.28.8/grsecurity/grsec_log.c 1969-12-31 19:00:00.000000000 -0500 -+++ linux-2.6.28.8/grsecurity/grsec_log.c 2009-02-21 09:37:49.000000000 -0500 -@@ -0,0 +1,269 @@ -+#include <linux/kernel.h> -+#include <linux/sched.h> -+#include <linux/file.h> -+#include <linux/tty.h> -+#include <linux/fs.h> -+#include <linux/grinternal.h> -+ -+#define BEGIN_LOCKS(x) \ -+ read_lock(&tasklist_lock); \ -+ read_lock(&grsec_exec_file_lock); \ -+ if (x != GR_DO_AUDIT) \ -+ spin_lock(&grsec_alert_lock); \ -+ else \ -+ spin_lock(&grsec_audit_lock) -+ -+#define END_LOCKS(x) \ -+ if (x != GR_DO_AUDIT) \ -+ spin_unlock(&grsec_alert_lock); \ -+ else \ -+ spin_unlock(&grsec_audit_lock); \ -+ read_unlock(&grsec_exec_file_lock); \ -+ read_unlock(&tasklist_lock); \ -+ if (x == GR_DONT_AUDIT) \ -+ gr_handle_alertkill(current) -+ -+enum { -+ FLOODING, -+ NO_FLOODING -+}; -+ -+extern char *gr_alert_log_fmt; -+extern char *gr_audit_log_fmt; -+extern char *gr_alert_log_buf; -+extern char *gr_audit_log_buf; -+ -+static int gr_log_start(int audit) -+{ -+ char *loglevel = (audit == GR_DO_AUDIT) ? KERN_INFO : KERN_ALERT; -+ char *fmt = (audit == GR_DO_AUDIT) ? gr_audit_log_fmt : gr_alert_log_fmt; -+ char *buf = (audit == GR_DO_AUDIT) ? gr_audit_log_buf : gr_alert_log_buf; -+ -+ if (audit == GR_DO_AUDIT) -+ goto set_fmt; -+ -+ if (!grsec_alert_wtime || jiffies - grsec_alert_wtime > CONFIG_GRKERNSEC_FLOODTIME * HZ) { -+ grsec_alert_wtime = jiffies; -+ grsec_alert_fyet = 0; -+ } else if ((jiffies - grsec_alert_wtime < CONFIG_GRKERNSEC_FLOODTIME * HZ) && (grsec_alert_fyet < CONFIG_GRKERNSEC_FLOODBURST)) { -+ grsec_alert_fyet++; -+ } else if (grsec_alert_fyet == CONFIG_GRKERNSEC_FLOODBURST) { -+ grsec_alert_wtime = jiffies; -+ grsec_alert_fyet++; -+ printk(KERN_ALERT "grsec: more alerts, logging disabled for %d seconds\n", CONFIG_GRKERNSEC_FLOODTIME); -+ return FLOODING; -+ } else return FLOODING; -+ -+set_fmt: -+ memset(buf, 0, PAGE_SIZE); -+ if (current->signal->curr_ip && gr_acl_is_enabled()) { -+ sprintf(fmt, "%s%s", loglevel, "grsec: From %u.%u.%u.%u: (%.64s:%c:%.950s) "); -+ snprintf(buf, PAGE_SIZE - 1, fmt, NIPQUAD(current->signal->curr_ip), current->role->rolename, gr_roletype_to_char(), current->acl->filename); -+ } else if (current->signal->curr_ip) { -+ sprintf(fmt, "%s%s", loglevel, "grsec: From %u.%u.%u.%u: "); -+ snprintf(buf, PAGE_SIZE - 1, fmt, NIPQUAD(current->signal->curr_ip)); -+ } else if (gr_acl_is_enabled()) { -+ sprintf(fmt, "%s%s", loglevel, "grsec: (%.64s:%c:%.950s) "); -+ snprintf(buf, PAGE_SIZE - 1, fmt, current->role->rolename, gr_roletype_to_char(), current->acl->filename); -+ } else { -+ sprintf(fmt, "%s%s", loglevel, "grsec: "); -+ strcpy(buf, fmt); -+ } -+ -+ return NO_FLOODING; -+} -+ -+static void gr_log_middle(int audit, const char *msg, va_list ap) -+{ -+ char *buf = (audit == GR_DO_AUDIT) ? gr_audit_log_buf : gr_alert_log_buf; -+ unsigned int len = strlen(buf); -+ -+ vsnprintf(buf + len, PAGE_SIZE - len - 1, msg, ap); -+ -+ return; -+} -+ -+static void gr_log_middle_varargs(int audit, const char *msg, ...) -+{ -+ char *buf = (audit == GR_DO_AUDIT) ? gr_audit_log_buf : gr_alert_log_buf; -+ unsigned int len = strlen(buf); -+ va_list ap; -+ -+ va_start(ap, msg); -+ vsnprintf(buf + len, PAGE_SIZE - len - 1, msg, ap); -+ va_end(ap); -+ -+ return; -+} -+ -+static void gr_log_end(int audit) -+{ -+ char *buf = (audit == GR_DO_AUDIT) ? gr_audit_log_buf : gr_alert_log_buf; -+ unsigned int len = strlen(buf); -+ -+ snprintf(buf + len, PAGE_SIZE - len - 1, DEFAULTSECMSG, DEFAULTSECARGS(current)); -+ printk("%s\n", buf); -+ -+ return; -+} -+ -+void gr_log_varargs(int audit, const char *msg, int argtypes, ...) -+{ -+ int logtype; -+ char *result = (audit == GR_DO_AUDIT) ? "successful" : "denied"; -+ char *str1, *str2, *str3; -+ int num1, num2; -+ unsigned long ulong1, ulong2; -+ struct dentry *dentry; -+ struct vfsmount *mnt; -+ struct file *file; -+ struct task_struct *task; -+ va_list ap; -+ -+ BEGIN_LOCKS(audit); -+ logtype = gr_log_start(audit); -+ if (logtype == FLOODING) { -+ END_LOCKS(audit); -+ return; -+ } -+ va_start(ap, argtypes); -+ switch (argtypes) { -+ case GR_TTYSNIFF: -+ task = va_arg(ap, struct task_struct *); -+ gr_log_middle_varargs(audit, msg, NIPQUAD(task->signal->curr_ip), gr_task_fullpath0(task), task->comm, task->pid, gr_parent_task_fullpath0(task), task->parent->comm, task->parent->pid); -+ break; -+ case GR_SYSCTL_HIDDEN: -+ str1 = va_arg(ap, char *); -+ gr_log_middle_varargs(audit, msg, result, str1); -+ break; -+ case GR_RBAC: -+ dentry = va_arg(ap, struct dentry *); -+ mnt = va_arg(ap, struct vfsmount *); -+ gr_log_middle_varargs(audit, msg, result, gr_to_filename(dentry, mnt)); -+ break; -+ case GR_RBAC_STR: -+ dentry = va_arg(ap, struct dentry *); -+ mnt = va_arg(ap, struct vfsmount *); -+ str1 = va_arg(ap, char *); -+ gr_log_middle_varargs(audit, msg, result, gr_to_filename(dentry, mnt), str1); -+ break; -+ case GR_STR_RBAC: -+ str1 = va_arg(ap, char *); -+ dentry = va_arg(ap, struct dentry *); -+ mnt = va_arg(ap, struct vfsmount *); -+ gr_log_middle_varargs(audit, msg, result, str1, gr_to_filename(dentry, mnt)); -+ break; -+ case GR_RBAC_MODE2: -+ dentry = va_arg(ap, struct dentry *); -+ mnt = va_arg(ap, struct vfsmount *); -+ str1 = va_arg(ap, char *); -+ str2 = va_arg(ap, char *); -+ gr_log_middle_varargs(audit, msg, result, gr_to_filename(dentry, mnt), str1, str2); -+ break; -+ case GR_RBAC_MODE3: -+ dentry = va_arg(ap, struct dentry *); -+ mnt = va_arg(ap, struct vfsmount *); -+ str1 = va_arg(ap, char *); -+ str2 = va_arg(ap, char *); -+ str3 = va_arg(ap, char *); -+ gr_log_middle_varargs(audit, msg, result, gr_to_filename(dentry, mnt), str1, str2, str3); -+ break; -+ case GR_FILENAME: -+ dentry = va_arg(ap, struct dentry *); -+ mnt = va_arg(ap, struct vfsmount *); -+ gr_log_middle_varargs(audit, msg, gr_to_filename(dentry, mnt)); -+ break; -+ case GR_STR_FILENAME: -+ str1 = va_arg(ap, char *); -+ dentry = va_arg(ap, struct dentry *); -+ mnt = va_arg(ap, struct vfsmount *); -+ gr_log_middle_varargs(audit, msg, str1, gr_to_filename(dentry, mnt)); -+ break; -+ case GR_FILENAME_STR: -+ dentry = va_arg(ap, struct dentry *); -+ mnt = va_arg(ap, struct vfsmount *); -+ str1 = va_arg(ap, char *); -+ gr_log_middle_varargs(audit, msg, gr_to_filename(dentry, mnt), str1); -+ break; -+ case GR_FILENAME_TWO_INT: -+ dentry = va_arg(ap, struct dentry *); -+ mnt = va_arg(ap, struct vfsmount *); -+ num1 = va_arg(ap, int); -+ num2 = va_arg(ap, int); -+ gr_log_middle_varargs(audit, msg, gr_to_filename(dentry, mnt), num1, num2); -+ break; -+ case GR_FILENAME_TWO_INT_STR: -+ dentry = va_arg(ap, struct dentry *); -+ mnt = va_arg(ap, struct vfsmount *); -+ num1 = va_arg(ap, int); -+ num2 = va_arg(ap, int); -+ str1 = va_arg(ap, char *); -+ gr_log_middle_varargs(audit, msg, gr_to_filename(dentry, mnt), num1, num2, str1); -+ break; -+ case GR_TEXTREL: -+ file = va_arg(ap, struct file *); -+ ulong1 = va_arg(ap, unsigned long); -+ ulong2 = va_arg(ap, unsigned long); -+ gr_log_middle_varargs(audit, msg, file ? gr_to_filename(file->f_path.dentry, file->f_path.mnt) : "<anonymous mapping>", ulong1, ulong2); -+ break; -+ case GR_PTRACE: -+ task = va_arg(ap, struct task_struct *); -+ gr_log_middle_varargs(audit, msg, task->exec_file ? gr_to_filename(task->exec_file->f_path.dentry, task->exec_file->f_path.mnt) : "(none)", task->comm, task->pid); -+ break; -+ case GR_RESOURCE: -+ task = va_arg(ap, struct task_struct *); -+ ulong1 = va_arg(ap, unsigned long); -+ str1 = va_arg(ap, char *); -+ ulong2 = va_arg(ap, unsigned long); -+ gr_log_middle_varargs(audit, msg, ulong1, str1, ulong2, gr_task_fullpath(task), task->comm, task->pid, task->uid, task->euid, task->gid, task->egid, gr_parent_task_fullpath(task), task->parent->comm, task->parent->pid, task->parent->uid, task->parent->euid, task->parent->gid, task->parent->egid); -+ break; -+ case GR_CAP: -+ task = va_arg(ap, struct task_struct *); -+ str1 = va_arg(ap, char *); -+ gr_log_middle_varargs(audit, msg, str1, gr_task_fullpath(task), task->comm, task->pid, task->uid, task->euid, task->gid, task->egid, gr_parent_task_fullpath(task), task->parent->comm, task->parent->pid, task->parent->uid, task->parent->euid, task->parent->gid, task->parent->egid); -+ break; -+ case GR_SIG: -+ task = va_arg(ap, struct task_struct *); -+ num1 = va_arg(ap, int); -+ gr_log_middle_varargs(audit, msg, num1, gr_task_fullpath0(task), task->comm, task->pid, task->uid, task->euid, task->gid, task->egid, gr_parent_task_fullpath0(task), task->parent->comm, task->parent->pid, task->parent->uid, task->parent->euid, task->parent->gid, task->parent->egid); -+ break; -+ case GR_CRASH1: -+ task = va_arg(ap, struct task_struct *); -+ ulong1 = va_arg(ap, unsigned long); -+ gr_log_middle_varargs(audit, msg, gr_task_fullpath(task), task->comm, task->pid, task->uid, task->euid, task->gid, task->egid, gr_parent_task_fullpath(task), task->parent->comm, task->parent->pid, task->parent->uid, task->parent->euid, task->parent->gid, task->parent->egid, task->uid, ulong1); -+ break; -+ case GR_CRASH2: -+ task = va_arg(ap, struct task_struct *); -+ ulong1 = va_arg(ap, unsigned long); -+ gr_log_middle_varargs(audit, msg, gr_task_fullpath(task), task->comm, task->pid, task->uid, task->euid, task->gid, task->egid, gr_parent_task_fullpath(task), task->parent->comm, task->parent->pid, task->parent->uid, task->parent->euid, task->parent->gid, task->parent->egid, ulong1); -+ break; -+ case GR_PSACCT: -+ { -+ unsigned int wday, cday; -+ __u8 whr, chr; -+ __u8 wmin, cmin; -+ __u8 wsec, csec; -+ char cur_tty[64] = { 0 }; -+ char parent_tty[64] = { 0 }; -+ -+ task = va_arg(ap, struct task_struct *); -+ wday = va_arg(ap, unsigned int); -+ cday = va_arg(ap, unsigned int); -+ whr = va_arg(ap, int); -+ chr = va_arg(ap, int); -+ wmin = va_arg(ap, int); -+ cmin = va_arg(ap, int); -+ wsec = va_arg(ap, int); -+ csec = va_arg(ap, int); -+ ulong1 = va_arg(ap, unsigned long); -+ -+ gr_log_middle_varargs(audit, msg, gr_task_fullpath(task), task->comm, task->pid, NIPQUAD(task->signal->curr_ip), tty_name(task->signal->tty, cur_tty), task->uid, task->euid, task->gid, task->egid, wday, whr, wmin, wsec, cday, chr, cmin, csec, (task->flags & PF_SIGNALED) ? "killed by signal" : "exited", ulong1, gr_parent_task_fullpath(task), task->parent->comm, task->parent->pid, NIPQUAD(task->parent->signal->curr_ip), tty_name(task->parent->signal->tty, parent_tty), task->parent->uid, task->parent->euid, task->parent->gid, task->parent->egid); -+ } -+ break; -+ default: -+ gr_log_middle(audit, msg, ap); -+ } -+ va_end(ap); -+ gr_log_end(audit); -+ END_LOCKS(audit); -+} -diff -urNp linux-2.6.28.8/grsecurity/grsec_mem.c linux-2.6.28.8/grsecurity/grsec_mem.c ---- linux-2.6.28.8/grsecurity/grsec_mem.c 1969-12-31 19:00:00.000000000 -0500 -+++ linux-2.6.28.8/grsecurity/grsec_mem.c 2009-02-21 09:37:49.000000000 -0500 -@@ -0,0 +1,71 @@ -+#include <linux/kernel.h> -+#include <linux/sched.h> -+#include <linux/mm.h> -+#include <linux/mman.h> -+#include <linux/grinternal.h> -+ -+void -+gr_handle_ioperm(void) -+{ -+ gr_log_noargs(GR_DONT_AUDIT, GR_IOPERM_MSG); -+ return; -+} -+ -+void -+gr_handle_iopl(void) -+{ -+ gr_log_noargs(GR_DONT_AUDIT, GR_IOPL_MSG); -+ return; -+} -+ -+void -+gr_handle_mem_write(void) -+{ -+ gr_log_noargs(GR_DONT_AUDIT, GR_MEM_WRITE_MSG); -+ return; -+} -+ -+void -+gr_handle_kmem_write(void) -+{ -+ gr_log_noargs(GR_DONT_AUDIT, GR_KMEM_MSG); -+ return; -+} -+ -+void -+gr_handle_open_port(void) -+{ -+ gr_log_noargs(GR_DONT_AUDIT, GR_PORT_OPEN_MSG); -+ return; -+} -+ -+int -+gr_handle_mem_mmap(const unsigned long offset, struct vm_area_struct *vma) -+{ -+ unsigned long start, end; -+ -+ start = offset; -+ end = start + vma->vm_end - vma->vm_start; -+ -+ if (start > end) { -+ gr_log_noargs(GR_DONT_AUDIT, GR_MEM_MMAP_MSG); -+ return -EPERM; -+ } -+ -+ /* allowed ranges : ISA I/O BIOS */ -+ if ((start >= __pa(high_memory)) -+#ifdef CONFIG_X86 -+ || (start >= 0x000a0000 && end <= 0x00100000) -+ || (start >= 0x00000000 && end <= 0x00001000) -+#endif -+ ) -+ return 0; -+ -+ if (vma->vm_flags & VM_WRITE) { -+ gr_log_noargs(GR_DONT_AUDIT, GR_MEM_MMAP_MSG); -+ return -EPERM; -+ } else -+ vma->vm_flags &= ~VM_MAYWRITE; -+ -+ return 0; -+} -diff -urNp linux-2.6.28.8/grsecurity/grsec_mount.c linux-2.6.28.8/grsecurity/grsec_mount.c ---- linux-2.6.28.8/grsecurity/grsec_mount.c 1969-12-31 19:00:00.000000000 -0500 -+++ linux-2.6.28.8/grsecurity/grsec_mount.c 2009-02-21 09:37:49.000000000 -0500 -@@ -0,0 +1,34 @@ -+#include <linux/kernel.h> -+#include <linux/sched.h> -+#include <linux/grsecurity.h> -+#include <linux/grinternal.h> -+ -+void -+gr_log_remount(const char *devname, const int retval) -+{ -+#ifdef CONFIG_GRKERNSEC_AUDIT_MOUNT -+ if (grsec_enable_mount && (retval >= 0)) -+ gr_log_str(GR_DO_AUDIT, GR_REMOUNT_AUDIT_MSG, devname ? devname : "none"); -+#endif -+ return; -+} -+ -+void -+gr_log_unmount(const char *devname, const int retval) -+{ -+#ifdef CONFIG_GRKERNSEC_AUDIT_MOUNT -+ if (grsec_enable_mount && (retval >= 0)) -+ gr_log_str(GR_DO_AUDIT, GR_UNMOUNT_AUDIT_MSG, devname ? devname : "none"); -+#endif -+ return; -+} -+ -+void -+gr_log_mount(const char *from, const char *to, const int retval) -+{ -+#ifdef CONFIG_GRKERNSEC_AUDIT_MOUNT -+ if (grsec_enable_mount && (retval >= 0)) -+ gr_log_str_str(GR_DO_AUDIT, GR_MOUNT_AUDIT_MSG, from, to); -+#endif -+ return; -+} -diff -urNp linux-2.6.28.8/grsecurity/grsec_sig.c linux-2.6.28.8/grsecurity/grsec_sig.c ---- linux-2.6.28.8/grsecurity/grsec_sig.c 1969-12-31 19:00:00.000000000 -0500 -+++ linux-2.6.28.8/grsecurity/grsec_sig.c 2009-02-21 09:37:49.000000000 -0500 -@@ -0,0 +1,58 @@ -+#include <linux/kernel.h> -+#include <linux/sched.h> -+#include <linux/delay.h> -+#include <linux/grsecurity.h> -+#include <linux/grinternal.h> -+ -+void -+gr_log_signal(const int sig, const struct task_struct *t) -+{ -+#ifdef CONFIG_GRKERNSEC_SIGNAL -+ if (grsec_enable_signal && ((sig == SIGSEGV) || (sig == SIGILL) || -+ (sig == SIGABRT) || (sig == SIGBUS))) { -+ if (t->pid == current->pid) { -+ gr_log_int(GR_DONT_AUDIT_GOOD, GR_UNISIGLOG_MSG, sig); -+ } else { -+ gr_log_sig(GR_DONT_AUDIT_GOOD, GR_DUALSIGLOG_MSG, t, sig); -+ } -+ } -+#endif -+ return; -+} -+ -+int -+gr_handle_signal(const struct task_struct *p, const int sig) -+{ -+#ifdef CONFIG_GRKERNSEC -+ if (current->pid > 1 && gr_check_protected_task(p)) { -+ gr_log_sig(GR_DONT_AUDIT, GR_SIG_ACL_MSG, p, sig); -+ return -EPERM; -+ } else if (gr_pid_is_chrooted((struct task_struct *)p)) { -+ return -EPERM; -+ } -+#endif -+ return 0; -+} -+ -+void gr_handle_brute_attach(struct task_struct *p) -+{ -+#ifdef CONFIG_GRKERNSEC_BRUTE -+ read_lock(&tasklist_lock); -+ read_lock(&grsec_exec_file_lock); -+ if (p->parent && p->parent->exec_file == p->exec_file) -+ p->parent->brute = 1; -+ read_unlock(&grsec_exec_file_lock); -+ read_unlock(&tasklist_lock); -+#endif -+ return; -+} -+ -+void gr_handle_brute_check(void) -+{ -+#ifdef CONFIG_GRKERNSEC_BRUTE -+ if (current->brute) -+ msleep(30 * 1000); -+#endif -+ return; -+} -+ -diff -urNp linux-2.6.28.8/grsecurity/grsec_sock.c linux-2.6.28.8/grsecurity/grsec_sock.c ---- linux-2.6.28.8/grsecurity/grsec_sock.c 1969-12-31 19:00:00.000000000 -0500 -+++ linux-2.6.28.8/grsecurity/grsec_sock.c 2009-02-21 09:37:49.000000000 -0500 -@@ -0,0 +1,274 @@ -+#include <linux/kernel.h> -+#include <linux/module.h> -+#include <linux/sched.h> -+#include <linux/file.h> -+#include <linux/net.h> -+#include <linux/in.h> -+#include <linux/ip.h> -+#include <net/sock.h> -+#include <net/inet_sock.h> -+#include <linux/grsecurity.h> -+#include <linux/grinternal.h> -+#include <linux/gracl.h> -+ -+#if defined(CONFIG_IP_NF_MATCH_STEALTH_MODULE) -+extern struct sock *udp_v4_lookup(u32 saddr, u16 sport, u32 daddr, u16 dport, int dif); -+EXPORT_SYMBOL(udp_v4_lookup); -+#endif -+ -+kernel_cap_t gr_cap_rtnetlink(struct sock *sock); -+EXPORT_SYMBOL(gr_cap_rtnetlink); -+ -+extern int gr_search_udp_recvmsg(const struct sock *sk, const struct sk_buff *skb); -+extern int gr_search_udp_sendmsg(const struct sock *sk, const struct sockaddr_in *addr); -+ -+EXPORT_SYMBOL(gr_search_udp_recvmsg); -+EXPORT_SYMBOL(gr_search_udp_sendmsg); -+ -+#ifdef CONFIG_UNIX_MODULE -+EXPORT_SYMBOL(gr_acl_handle_unix); -+EXPORT_SYMBOL(gr_acl_handle_mknod); -+EXPORT_SYMBOL(gr_handle_chroot_unix); -+EXPORT_SYMBOL(gr_handle_create); -+#endif -+ -+#ifdef CONFIG_GRKERNSEC -+#define gr_conn_table_size 32749 -+struct conn_table_entry { -+ struct conn_table_entry *next; -+ struct signal_struct *sig; -+}; -+ -+struct conn_table_entry *gr_conn_table[gr_conn_table_size]; -+DEFINE_SPINLOCK(gr_conn_table_lock); -+ -+extern const char * gr_socktype_to_name(unsigned char type); -+extern const char * gr_proto_to_name(unsigned char proto); -+ -+static __inline__ int -+conn_hash(__u32 saddr, __u32 daddr, __u16 sport, __u16 dport, unsigned int size) -+{ -+ return ((daddr + saddr + (sport << 8) + (dport << 16)) % size); -+} -+ -+static __inline__ int -+conn_match(const struct signal_struct *sig, __u32 saddr, __u32 daddr, -+ __u16 sport, __u16 dport) -+{ -+ if (unlikely(sig->gr_saddr == saddr && sig->gr_daddr == daddr && -+ sig->gr_sport == sport && sig->gr_dport == dport)) -+ return 1; -+ else -+ return 0; -+} -+ -+static void gr_add_to_task_ip_table_nolock(struct signal_struct *sig, struct conn_table_entry *newent) -+{ -+ struct conn_table_entry **match; -+ unsigned int index; -+ -+ index = conn_hash(sig->gr_saddr, sig->gr_daddr, -+ sig->gr_sport, sig->gr_dport, -+ gr_conn_table_size); -+ -+ newent->sig = sig; -+ -+ match = &gr_conn_table[index]; -+ newent->next = *match; -+ *match = newent; -+ -+ return; -+} -+ -+static void gr_del_task_from_ip_table_nolock(struct signal_struct *sig) -+{ -+ struct conn_table_entry *match, *last = NULL; -+ unsigned int index; -+ -+ index = conn_hash(sig->gr_saddr, sig->gr_daddr, -+ sig->gr_sport, sig->gr_dport, -+ gr_conn_table_size); -+ -+ match = gr_conn_table[index]; -+ while (match && !conn_match(match->sig, -+ sig->gr_saddr, sig->gr_daddr, sig->gr_sport, -+ sig->gr_dport)) { -+ last = match; -+ match = match->next; -+ } -+ -+ if (match) { -+ if (last) -+ last->next = match->next; -+ else -+ gr_conn_table[index] = NULL; -+ kfree(match); -+ } -+ -+ return; -+} -+ -+static struct signal_struct * gr_lookup_task_ip_table(__u32 saddr, __u32 daddr, -+ __u16 sport, __u16 dport) -+{ -+ struct conn_table_entry *match; -+ unsigned int index; -+ -+ index = conn_hash(saddr, daddr, sport, dport, gr_conn_table_size); -+ -+ match = gr_conn_table[index]; -+ while (match && !conn_match(match->sig, saddr, daddr, sport, dport)) -+ match = match->next; -+ -+ if (match) -+ return match->sig; -+ else -+ return NULL; -+} -+ -+#endif -+ -+void gr_update_task_in_ip_table(struct task_struct *task, const struct inet_sock *inet) -+{ -+#ifdef CONFIG_GRKERNSEC -+ struct signal_struct *sig = task->signal; -+ struct conn_table_entry *newent; -+ -+ newent = kmalloc(sizeof(struct conn_table_entry), GFP_ATOMIC); -+ if (newent == NULL) -+ return; -+ /* no bh lock needed since we are called with bh disabled */ -+ spin_lock(&gr_conn_table_lock); -+ gr_del_task_from_ip_table_nolock(sig); -+ sig->gr_saddr = inet->rcv_saddr; -+ sig->gr_daddr = inet->daddr; -+ sig->gr_sport = inet->sport; -+ sig->gr_dport = inet->dport; -+ gr_add_to_task_ip_table_nolock(sig, newent); -+ spin_unlock(&gr_conn_table_lock); -+#endif -+ return; -+} -+ -+void gr_del_task_from_ip_table(struct task_struct *task) -+{ -+#ifdef CONFIG_GRKERNSEC -+ spin_lock_bh(&gr_conn_table_lock); -+ gr_del_task_from_ip_table_nolock(task->signal); -+ spin_unlock_bh(&gr_conn_table_lock); -+#endif -+ return; -+} -+ -+void -+gr_attach_curr_ip(const struct sock *sk) -+{ -+#ifdef CONFIG_GRKERNSEC -+ struct signal_struct *p, *set; -+ const struct inet_sock *inet = inet_sk(sk); -+ -+ if (unlikely(sk->sk_protocol != IPPROTO_TCP)) -+ return; -+ -+ set = current->signal; -+ -+ spin_lock_bh(&gr_conn_table_lock); -+ p = gr_lookup_task_ip_table(inet->daddr, inet->rcv_saddr, -+ inet->dport, inet->sport); -+ if (unlikely(p != NULL)) { -+ set->curr_ip = p->curr_ip; -+ set->used_accept = 1; -+ gr_del_task_from_ip_table_nolock(p); -+ spin_unlock_bh(&gr_conn_table_lock); -+ return; -+ } -+ spin_unlock_bh(&gr_conn_table_lock); -+ -+ set->curr_ip = inet->daddr; -+ set->used_accept = 1; -+#endif -+ return; -+} -+ -+int -+gr_handle_sock_all(const int family, const int type, const int protocol) -+{ -+#ifdef CONFIG_GRKERNSEC_SOCKET_ALL -+ if (grsec_enable_socket_all && in_group_p(grsec_socket_all_gid) && -+ (family != AF_UNIX) && (family != AF_LOCAL)) { -+ gr_log_int_str2(GR_DONT_AUDIT, GR_SOCK2_MSG, family, gr_socktype_to_name(type), gr_proto_to_name(protocol)); -+ return -EACCES; -+ } -+#endif -+ return 0; -+} -+ -+int -+gr_handle_sock_server(const struct sockaddr *sck) -+{ -+#ifdef CONFIG_GRKERNSEC_SOCKET_SERVER -+ if (grsec_enable_socket_server && -+ in_group_p(grsec_socket_server_gid) && -+ sck && (sck->sa_family != AF_UNIX) && -+ (sck->sa_family != AF_LOCAL)) { -+ gr_log_noargs(GR_DONT_AUDIT, GR_BIND_MSG); -+ return -EACCES; -+ } -+#endif -+ return 0; -+} -+ -+int -+gr_handle_sock_server_other(const struct sock *sck) -+{ -+#ifdef CONFIG_GRKERNSEC_SOCKET_SERVER -+ if (grsec_enable_socket_server && -+ in_group_p(grsec_socket_server_gid) && -+ sck && (sck->sk_family != AF_UNIX) && -+ (sck->sk_family != AF_LOCAL)) { -+ gr_log_noargs(GR_DONT_AUDIT, GR_BIND_MSG); -+ return -EACCES; -+ } -+#endif -+ return 0; -+} -+ -+int -+gr_handle_sock_client(const struct sockaddr *sck) -+{ -+#ifdef CONFIG_GRKERNSEC_SOCKET_CLIENT -+ if (grsec_enable_socket_client && in_group_p(grsec_socket_client_gid) && -+ sck && (sck->sa_family != AF_UNIX) && -+ (sck->sa_family != AF_LOCAL)) { -+ gr_log_noargs(GR_DONT_AUDIT, GR_CONNECT_MSG); -+ return -EACCES; -+ } -+#endif -+ return 0; -+} -+ -+kernel_cap_t -+gr_cap_rtnetlink(struct sock *sock) -+{ -+#ifdef CONFIG_GRKERNSEC -+ if (!gr_acl_is_enabled()) -+ return current->cap_effective; -+ else if (sock->sk_protocol == NETLINK_ISCSI && -+ cap_raised(current->cap_effective, CAP_SYS_ADMIN) && -+ gr_task_is_capable(current, CAP_SYS_ADMIN)) -+ return current->cap_effective; -+ else if (sock->sk_protocol == NETLINK_AUDIT && -+ cap_raised(current->cap_effective, CAP_AUDIT_WRITE) && -+ gr_task_is_capable(current, CAP_AUDIT_WRITE) && -+ cap_raised(current->cap_effective, CAP_AUDIT_CONTROL) && -+ gr_task_is_capable(current, CAP_AUDIT_CONTROL)) -+ return current->cap_effective; -+ else if (cap_raised(current->cap_effective, CAP_NET_ADMIN) && -+ gr_task_is_capable(current, CAP_NET_ADMIN)) -+ return current->cap_effective; -+ else -+ return __cap_empty_set; -+#else -+ return current->cap_effective; -+#endif -+} -diff -urNp linux-2.6.28.8/grsecurity/grsec_sysctl.c linux-2.6.28.8/grsecurity/grsec_sysctl.c ---- linux-2.6.28.8/grsecurity/grsec_sysctl.c 1969-12-31 19:00:00.000000000 -0500 -+++ linux-2.6.28.8/grsecurity/grsec_sysctl.c 2009-02-21 09:37:49.000000000 -0500 -@@ -0,0 +1,435 @@ -+#include <linux/kernel.h> -+#include <linux/sched.h> -+#include <linux/sysctl.h> -+#include <linux/grsecurity.h> -+#include <linux/grinternal.h> -+ -+#ifdef CONFIG_GRKERNSEC_MODSTOP -+int grsec_modstop; -+#endif -+ -+int -+gr_handle_sysctl_mod(const char *dirname, const char *name, const int op) -+{ -+#ifdef CONFIG_GRKERNSEC_SYSCTL -+ if (!strcmp(dirname, "grsecurity") && grsec_lock && (op & MAY_WRITE)) { -+ gr_log_str(GR_DONT_AUDIT, GR_SYSCTL_MSG, name); -+ return -EACCES; -+ } -+#endif -+#ifdef CONFIG_GRKERNSEC_MODSTOP -+ if (!strcmp(dirname, "grsecurity") && !strcmp(name, "disable_modules") && -+ grsec_modstop && (op & MAY_WRITE)) { -+ gr_log_str(GR_DONT_AUDIT, GR_SYSCTL_MSG, name); -+ return -EACCES; -+ } -+#endif -+ return 0; -+} -+ -+#if defined(CONFIG_GRKERNSEC_SYSCTL) || defined(CONFIG_GRKERNSEC_MODSTOP) -+ctl_table grsecurity_table[] = { -+#ifdef CONFIG_GRKERNSEC_SYSCTL -+#ifdef CONFIG_GRKERNSEC_LINK -+ { -+ .ctl_name = CTL_UNNUMBERED, -+ .procname = "linking_restrictions", -+ .data = &grsec_enable_link, -+ .maxlen = sizeof(int), -+ .mode = 0600, -+ .proc_handler = &proc_dointvec, -+ }, -+#endif -+#ifdef CONFIG_GRKERNSEC_FIFO -+ { -+ .ctl_name = CTL_UNNUMBERED, -+ .procname = "fifo_restrictions", -+ .data = &grsec_enable_fifo, -+ .maxlen = sizeof(int), -+ .mode = 0600, -+ .proc_handler = &proc_dointvec, -+ }, -+#endif -+#ifdef CONFIG_GRKERNSEC_EXECVE -+ { -+ .ctl_name = CTL_UNNUMBERED, -+ .procname = "execve_limiting", -+ .data = &grsec_enable_execve, -+ .maxlen = sizeof(int), -+ .mode = 0600, -+ .proc_handler = &proc_dointvec, -+ }, -+#endif -+#ifdef CONFIG_GRKERNSEC_EXECLOG -+ { -+ .ctl_name = CTL_UNNUMBERED, -+ .procname = "exec_logging", -+ .data = &grsec_enable_execlog, -+ .maxlen = sizeof(int), -+ .mode = 0600, -+ .proc_handler = &proc_dointvec, -+ }, -+#endif -+#ifdef CONFIG_GRKERNSEC_SIGNAL -+ { -+ .ctl_name = CTL_UNNUMBERED, -+ .procname = "signal_logging", -+ .data = &grsec_enable_signal, -+ .maxlen = sizeof(int), -+ .mode = 0600, -+ .proc_handler = &proc_dointvec, -+ }, -+#endif -+#ifdef CONFIG_GRKERNSEC_FORKFAIL -+ { -+ .ctl_name = CTL_UNNUMBERED, -+ .procname = "forkfail_logging", -+ .data = &grsec_enable_forkfail, -+ .maxlen = sizeof(int), -+ .mode = 0600, -+ .proc_handler = &proc_dointvec, -+ }, -+#endif -+#ifdef CONFIG_GRKERNSEC_TIME -+ { -+ .ctl_name = CTL_UNNUMBERED, -+ .procname = "timechange_logging", -+ .data = &grsec_enable_time, -+ .maxlen = sizeof(int), -+ .mode = 0600, -+ .proc_handler = &proc_dointvec, -+ }, -+#endif -+#ifdef CONFIG_GRKERNSEC_CHROOT_SHMAT -+ { -+ .ctl_name = CTL_UNNUMBERED, -+ .procname = "chroot_deny_shmat", -+ .data = &grsec_enable_chroot_shmat, -+ .maxlen = sizeof(int), -+ .mode = 0600, -+ .proc_handler = &proc_dointvec, -+ }, -+#endif -+#ifdef CONFIG_GRKERNSEC_CHROOT_UNIX -+ { -+ .ctl_name = CTL_UNNUMBERED, -+ .procname = "chroot_deny_unix", -+ .data = &grsec_enable_chroot_unix, -+ .maxlen = sizeof(int), -+ .mode = 0600, -+ .proc_handler = &proc_dointvec, -+ }, -+#endif -+#ifdef CONFIG_GRKERNSEC_CHROOT_MOUNT -+ { -+ .ctl_name = CTL_UNNUMBERED, -+ .procname = "chroot_deny_mount", -+ .data = &grsec_enable_chroot_mount, -+ .maxlen = sizeof(int), -+ .mode = 0600, -+ .proc_handler = &proc_dointvec, -+ }, -+#endif -+#ifdef CONFIG_GRKERNSEC_CHROOT_FCHDIR -+ { -+ .ctl_name = CTL_UNNUMBERED, -+ .procname = "chroot_deny_fchdir", -+ .data = &grsec_enable_chroot_fchdir, -+ .maxlen = sizeof(int), -+ .mode = 0600, -+ .proc_handler = &proc_dointvec, -+ }, -+#endif -+#ifdef CONFIG_GRKERNSEC_CHROOT_DOUBLE -+ { -+ .ctl_name = CTL_UNNUMBERED, -+ .procname = "chroot_deny_chroot", -+ .data = &grsec_enable_chroot_double, -+ .maxlen = sizeof(int), -+ .mode = 0600, -+ .proc_handler = &proc_dointvec, -+ }, -+#endif -+#ifdef CONFIG_GRKERNSEC_CHROOT_PIVOT -+ { -+ .ctl_name = CTL_UNNUMBERED, -+ .procname = "chroot_deny_pivot", -+ .data = &grsec_enable_chroot_pivot, -+ .maxlen = sizeof(int), -+ .mode = 0600, -+ .proc_handler = &proc_dointvec, -+ }, -+#endif -+#ifdef CONFIG_GRKERNSEC_CHROOT_CHDIR -+ { -+ .ctl_name = CTL_UNNUMBERED, -+ .procname = "chroot_enforce_chdir", -+ .data = &grsec_enable_chroot_chdir, -+ .maxlen = sizeof(int), -+ .mode = 0600, -+ .proc_handler = &proc_dointvec, -+ }, -+#endif -+#ifdef CONFIG_GRKERNSEC_CHROOT_CHMOD -+ { -+ .ctl_name = CTL_UNNUMBERED, -+ .procname = "chroot_deny_chmod", -+ .data = &grsec_enable_chroot_chmod, -+ .maxlen = sizeof(int), -+ .mode = 0600, -+ .proc_handler = &proc_dointvec, -+ }, -+#endif -+#ifdef CONFIG_GRKERNSEC_CHROOT_MKNOD -+ { -+ .ctl_name = CTL_UNNUMBERED, -+ .procname = "chroot_deny_mknod", -+ .data = &grsec_enable_chroot_mknod, -+ .maxlen = sizeof(int), -+ .mode = 0600, -+ .proc_handler = &proc_dointvec, -+ }, -+#endif -+#ifdef CONFIG_GRKERNSEC_CHROOT_NICE -+ { -+ .ctl_name = CTL_UNNUMBERED, -+ .procname = "chroot_restrict_nice", -+ .data = &grsec_enable_chroot_nice, -+ .maxlen = sizeof(int), -+ .mode = 0600, -+ .proc_handler = &proc_dointvec, -+ }, -+#endif -+#ifdef CONFIG_GRKERNSEC_CHROOT_EXECLOG -+ { -+ .ctl_name = CTL_UNNUMBERED, -+ .procname = "chroot_execlog", -+ .data = &grsec_enable_chroot_execlog, -+ .maxlen = sizeof(int), -+ .mode = 0600, -+ .proc_handler = &proc_dointvec, -+ }, -+#endif -+#ifdef CONFIG_GRKERNSEC_CHROOT_CAPS -+ { -+ .ctl_name = CTL_UNNUMBERED, -+ .procname = "chroot_caps", -+ .data = &grsec_enable_chroot_caps, -+ .maxlen = sizeof(int), -+ .mode = 0600, -+ .proc_handler = &proc_dointvec, -+ }, -+#endif -+#ifdef CONFIG_GRKERNSEC_CHROOT_SYSCTL -+ { -+ .ctl_name = CTL_UNNUMBERED, -+ .procname = "chroot_deny_sysctl", -+ .data = &grsec_enable_chroot_sysctl, -+ .maxlen = sizeof(int), -+ .mode = 0600, -+ .proc_handler = &proc_dointvec, -+ }, -+#endif -+#ifdef CONFIG_GRKERNSEC_TPE -+ { -+ .ctl_name = CTL_UNNUMBERED, -+ .procname = "tpe", -+ .data = &grsec_enable_tpe, -+ .maxlen = sizeof(int), -+ .mode = 0600, -+ .proc_handler = &proc_dointvec, -+ }, -+ { -+ .ctl_name = CTL_UNNUMBERED, -+ .procname = "tpe_gid", -+ .data = &grsec_tpe_gid, -+ .maxlen = sizeof(int), -+ .mode = 0600, -+ .proc_handler = &proc_dointvec, -+ }, -+#endif -+#ifdef CONFIG_GRKERNSEC_TPE_ALL -+ { -+ .ctl_name = CTL_UNNUMBERED, -+ .procname = "tpe_restrict_all", -+ .data = &grsec_enable_tpe_all, -+ .maxlen = sizeof(int), -+ .mode = 0600, -+ .proc_handler = &proc_dointvec, -+ }, -+#endif -+#ifdef CONFIG_GRKERNSEC_SOCKET_ALL -+ { -+ .ctl_name = CTL_UNNUMBERED, -+ .procname = "socket_all", -+ .data = &grsec_enable_socket_all, -+ .maxlen = sizeof(int), -+ .mode = 0600, -+ .proc_handler = &proc_dointvec, -+ }, -+ { -+ .ctl_name = CTL_UNNUMBERED, -+ .procname = "socket_all_gid", -+ .data = &grsec_socket_all_gid, -+ .maxlen = sizeof(int), -+ .mode = 0600, -+ .proc_handler = &proc_dointvec, -+ }, -+#endif -+#ifdef CONFIG_GRKERNSEC_SOCKET_CLIENT -+ { -+ .ctl_name = CTL_UNNUMBERED, -+ .procname = "socket_client", -+ .data = &grsec_enable_socket_client, -+ .maxlen = sizeof(int), -+ .mode = 0600, -+ .proc_handler = &proc_dointvec, -+ }, -+ { -+ .ctl_name = CTL_UNNUMBERED, -+ .procname = "socket_client_gid", -+ .data = &grsec_socket_client_gid, -+ .maxlen = sizeof(int), -+ .mode = 0600, -+ .proc_handler = &proc_dointvec, -+ }, -+#endif -+#ifdef CONFIG_GRKERNSEC_SOCKET_SERVER -+ { -+ .ctl_name = CTL_UNNUMBERED, -+ .procname = "socket_server", -+ .data = &grsec_enable_socket_server, -+ .maxlen = sizeof(int), -+ .mode = 0600, -+ .proc_handler = &proc_dointvec, -+ }, -+ { -+ .ctl_name = CTL_UNNUMBERED, -+ .procname = "socket_server_gid", -+ .data = &grsec_socket_server_gid, -+ .maxlen = sizeof(int), -+ .mode = 0600, -+ .proc_handler = &proc_dointvec, -+ }, -+#endif -+#ifdef CONFIG_GRKERNSEC_AUDIT_GROUP -+ { -+ .ctl_name = CTL_UNNUMBERED, -+ .procname = "audit_group", -+ .data = &grsec_enable_group, -+ .maxlen = sizeof(int), -+ .mode = 0600, -+ .proc_handler = &proc_dointvec, -+ }, -+ { -+ .ctl_name = CTL_UNNUMBERED, -+ .procname = "audit_gid", -+ .data = &grsec_audit_gid, -+ .maxlen = sizeof(int), -+ .mode = 0600, -+ .proc_handler = &proc_dointvec, -+ }, -+#endif -+#ifdef CONFIG_GRKERNSEC_AUDIT_CHDIR -+ { -+ .ctl_name = CTL_UNNUMBERED, -+ .procname = "audit_chdir", -+ .data = &grsec_enable_chdir, -+ .maxlen = sizeof(int), -+ .mode = 0600, -+ .proc_handler = &proc_dointvec, -+ }, -+#endif -+#ifdef CONFIG_GRKERNSEC_AUDIT_MOUNT -+ { -+ .ctl_name = CTL_UNNUMBERED, -+ .procname = "audit_mount", -+ .data = &grsec_enable_mount, -+ .maxlen = sizeof(int), -+ .mode = 0600, -+ .proc_handler = &proc_dointvec, -+ }, -+#endif -+#ifdef CONFIG_GRKERNSEC_AUDIT_IPC -+ { -+ .ctl_name = CTL_UNNUMBERED, -+ .procname = "audit_ipc", -+ .data = &grsec_enable_audit_ipc, -+ .maxlen = sizeof(int), -+ .mode = 0600, -+ .proc_handler = &proc_dointvec, -+ }, -+#endif -+#ifdef CONFIG_GRKERNSEC_AUDIT_TEXTREL -+ { -+ .ctl_name = CTL_UNNUMBERED, -+ .procname = "audit_textrel", -+ .data = &grsec_enable_audit_textrel, -+ .maxlen = sizeof(int), -+ .mode = 0600, -+ .proc_handler = &proc_dointvec, -+ }, -+#endif -+#ifdef CONFIG_GRKERNSEC_DMESG -+ { -+ .ctl_name = CTL_UNNUMBERED, -+ .procname = "dmesg", -+ .data = &grsec_enable_dmesg, -+ .maxlen = sizeof(int), -+ .mode = 0600, -+ .proc_handler = &proc_dointvec, -+ }, -+#endif -+#ifdef CONFIG_GRKERNSEC_CHROOT_FINDTASK -+ { -+ .ctl_name = CTL_UNNUMBERED, -+ .procname = "chroot_findtask", -+ .data = &grsec_enable_chroot_findtask, -+ .maxlen = sizeof(int), -+ .mode = 0600, -+ .proc_handler = &proc_dointvec, -+ }, -+#endif -+#ifdef CONFIG_GRKERNSEC_RESLOG -+ { -+ .ctl_name = CTL_UNNUMBERED, -+ .procname = "resource_logging", -+ .data = &grsec_resource_logging, -+ .maxlen = sizeof(int), -+ .mode = 0600, -+ .proc_handler = &proc_dointvec, -+ }, -+#endif -+ { -+ .ctl_name = CTL_UNNUMBERED, -+ .procname = "grsec_lock", -+ .data = &grsec_lock, -+ .maxlen = sizeof(int), -+ .mode = 0600, -+ .proc_handler = &proc_dointvec, -+ }, -+#endif -+#ifdef CONFIG_GRKERNSEC_MODSTOP -+ { -+ .ctl_name = CTL_UNNUMBERED, -+ .procname = "disable_modules", -+ .data = &grsec_modstop, -+ .maxlen = sizeof(int), -+ .mode = 0600, -+ .proc_handler = &proc_dointvec, -+ }, -+#endif -+ { .ctl_name = 0 } -+}; -+#endif -+ -+int gr_check_modstop(void) -+{ -+#ifdef CONFIG_GRKERNSEC_MODSTOP -+ if (grsec_modstop == 1) { -+ gr_log_noargs(GR_DONT_AUDIT, GR_STOPMOD_MSG); -+ return 1; -+ } -+#endif -+ return 0; -+} -diff -urNp linux-2.6.28.8/grsecurity/grsec_textrel.c linux-2.6.28.8/grsecurity/grsec_textrel.c ---- linux-2.6.28.8/grsecurity/grsec_textrel.c 1969-12-31 19:00:00.000000000 -0500 -+++ linux-2.6.28.8/grsecurity/grsec_textrel.c 2009-02-21 09:37:49.000000000 -0500 -@@ -0,0 +1,16 @@ -+#include <linux/kernel.h> -+#include <linux/sched.h> -+#include <linux/mm.h> -+#include <linux/file.h> -+#include <linux/grinternal.h> -+#include <linux/grsecurity.h> -+ -+void -+gr_log_textrel(struct vm_area_struct * vma) -+{ -+#ifdef CONFIG_GRKERNSEC_AUDIT_TEXTREL -+ if (grsec_enable_audit_textrel) -+ gr_log_textrel_ulong_ulong(GR_DO_AUDIT, GR_TEXTREL_AUDIT_MSG, vma->vm_file, vma->vm_start, vma->vm_pgoff); -+#endif -+ return; -+} -diff -urNp linux-2.6.28.8/grsecurity/grsec_time.c linux-2.6.28.8/grsecurity/grsec_time.c ---- linux-2.6.28.8/grsecurity/grsec_time.c 1969-12-31 19:00:00.000000000 -0500 -+++ linux-2.6.28.8/grsecurity/grsec_time.c 2009-02-21 09:37:49.000000000 -0500 -@@ -0,0 +1,13 @@ -+#include <linux/kernel.h> -+#include <linux/sched.h> -+#include <linux/grinternal.h> -+ -+void -+gr_log_timechange(void) -+{ -+#ifdef CONFIG_GRKERNSEC_TIME -+ if (grsec_enable_time) -+ gr_log_noargs(GR_DONT_AUDIT_GOOD, GR_TIME_MSG); -+#endif -+ return; -+} -diff -urNp linux-2.6.28.8/grsecurity/grsec_tpe.c linux-2.6.28.8/grsecurity/grsec_tpe.c ---- linux-2.6.28.8/grsecurity/grsec_tpe.c 1969-12-31 19:00:00.000000000 -0500 -+++ linux-2.6.28.8/grsecurity/grsec_tpe.c 2009-02-21 09:37:49.000000000 -0500 -@@ -0,0 +1,37 @@ -+#include <linux/kernel.h> -+#include <linux/sched.h> -+#include <linux/file.h> -+#include <linux/fs.h> -+#include <linux/grinternal.h> -+ -+extern int gr_acl_tpe_check(void); -+ -+int -+gr_tpe_allow(const struct file *file) -+{ -+#ifdef CONFIG_GRKERNSEC -+ struct inode *inode = file->f_path.dentry->d_parent->d_inode; -+ -+ if (current->uid && ((grsec_enable_tpe && -+#ifdef CONFIG_GRKERNSEC_TPE_INVERT -+ !in_group_p(grsec_tpe_gid) -+#else -+ in_group_p(grsec_tpe_gid) -+#endif -+ ) || gr_acl_tpe_check()) && -+ (inode->i_uid || (!inode->i_uid && ((inode->i_mode & S_IWGRP) || -+ (inode->i_mode & S_IWOTH))))) { -+ gr_log_fs_generic(GR_DONT_AUDIT, GR_EXEC_TPE_MSG, file->f_path.dentry, file->f_path.mnt); -+ return 0; -+ } -+#ifdef CONFIG_GRKERNSEC_TPE_ALL -+ if (current->uid && grsec_enable_tpe && grsec_enable_tpe_all && -+ ((inode->i_uid && (inode->i_uid != current->uid)) || -+ (inode->i_mode & S_IWGRP) || (inode->i_mode & S_IWOTH))) { -+ gr_log_fs_generic(GR_DONT_AUDIT, GR_EXEC_TPE_MSG, file->f_path.dentry, file->f_path.mnt); -+ return 0; -+ } -+#endif -+#endif -+ return 1; -+} -diff -urNp linux-2.6.28.8/grsecurity/grsum.c linux-2.6.28.8/grsecurity/grsum.c ---- linux-2.6.28.8/grsecurity/grsum.c 1969-12-31 19:00:00.000000000 -0500 -+++ linux-2.6.28.8/grsecurity/grsum.c 2009-02-21 09:37:49.000000000 -0500 -@@ -0,0 +1,59 @@ -+#include <linux/err.h> -+#include <linux/kernel.h> -+#include <linux/sched.h> -+#include <linux/mm.h> -+#include <linux/scatterlist.h> -+#include <linux/crypto.h> -+#include <linux/gracl.h> -+ -+ -+#if !defined(CONFIG_CRYPTO) || defined(CONFIG_CRYPTO_MODULE) || !defined(CONFIG_CRYPTO_SHA256) || defined(CONFIG_CRYPTO_SHA256_MODULE) -+#error "crypto and sha256 must be built into the kernel" -+#endif -+ -+int -+chkpw(struct gr_arg *entry, unsigned char *salt, unsigned char *sum) -+{ -+ char *p; -+ struct crypto_hash *tfm; -+ struct hash_desc desc; -+ struct scatterlist sg; -+ unsigned char temp_sum[GR_SHA_LEN]; -+ volatile int retval = 0; -+ volatile int dummy = 0; -+ unsigned int i; -+ -+ tfm = crypto_alloc_hash("sha256", 0, CRYPTO_ALG_ASYNC); -+ if (IS_ERR(tfm)) { -+ /* should never happen, since sha256 should be built in */ -+ return 1; -+ } -+ -+ desc.tfm = tfm; -+ desc.flags = 0; -+ -+ crypto_hash_init(&desc); -+ -+ p = salt; -+ sg_set_buf(&sg, p, GR_SALT_LEN); -+ crypto_hash_update(&desc, &sg, sg.length); -+ -+ p = entry->pw; -+ sg_set_buf(&sg, p, strlen(p)); -+ -+ crypto_hash_update(&desc, &sg, sg.length); -+ -+ crypto_hash_final(&desc, temp_sum); -+ -+ memset(entry->pw, 0, GR_PW_LEN); -+ -+ for (i = 0; i < GR_SHA_LEN; i++) -+ if (sum[i] != temp_sum[i]) -+ retval = 1; -+ else -+ dummy = 1; // waste a cycle -+ -+ crypto_free_hash(tfm); -+ -+ return retval; -+} -diff -urNp linux-2.6.28.8/grsecurity/Kconfig linux-2.6.28.8/grsecurity/Kconfig ---- linux-2.6.28.8/grsecurity/Kconfig 1969-12-31 19:00:00.000000000 -0500 -+++ linux-2.6.28.8/grsecurity/Kconfig 2009-03-07 14:50:21.000000000 -0500 -@@ -0,0 +1,868 @@ -+# -+# grecurity configuration -+# -+ -+menu "Grsecurity" -+ -+config GRKERNSEC -+ bool "Grsecurity" -+ select CRYPTO -+ select CRYPTO_SHA256 -+ select SECURITY -+ select SECURITY_CAPABILITIES -+ help -+ If you say Y here, you will be able to configure many features -+ that will enhance the security of your system. It is highly -+ recommended that you say Y here and read through the help -+ for each option so that you fully understand the features and -+ can evaluate their usefulness for your machine. -+ -+choice -+ prompt "Security Level" -+ depends on GRKERNSEC -+ default GRKERNSEC_CUSTOM -+ -+config GRKERNSEC_LOW -+ bool "Low" -+ select GRKERNSEC_LINK -+ select GRKERNSEC_FIFO -+ select GRKERNSEC_EXECVE -+ select GRKERNSEC_RANDNET -+ select GRKERNSEC_DMESG -+ select GRKERNSEC_CHROOT -+ select GRKERNSEC_CHROOT_CHDIR -+ select GRKERNSEC_MODSTOP if (MODULES) -+ -+ help -+ If you choose this option, several of the grsecurity options will -+ be enabled that will give you greater protection against a number -+ of attacks, while assuring that none of your software will have any -+ conflicts with the additional security measures. If you run a lot -+ of unusual software, or you are having problems with the higher -+ security levels, you should say Y here. With this option, the -+ following features are enabled: -+ -+ - Linking restrictions -+ - FIFO restrictions -+ - Enforcing RLIMIT_NPROC on execve -+ - Restricted dmesg -+ - Enforced chdir("/") on chroot -+ - Runtime module disabling -+ -+config GRKERNSEC_MEDIUM -+ bool "Medium" -+ select PAX -+ select PAX_EI_PAX -+ select PAX_PT_PAX_FLAGS -+ select PAX_HAVE_ACL_FLAGS -+ select GRKERNSEC_PROC_MEMMAP if (PAX_NOEXEC || PAX_ASLR) -+ select GRKERNSEC_CHROOT -+ select GRKERNSEC_CHROOT_SYSCTL -+ select GRKERNSEC_LINK -+ select GRKERNSEC_FIFO -+ select GRKERNSEC_EXECVE -+ select GRKERNSEC_DMESG -+ select GRKERNSEC_RANDNET -+ select GRKERNSEC_FORKFAIL -+ select GRKERNSEC_TIME -+ select GRKERNSEC_SIGNAL -+ select GRKERNSEC_CHROOT -+ select GRKERNSEC_CHROOT_UNIX -+ select GRKERNSEC_CHROOT_MOUNT -+ select GRKERNSEC_CHROOT_PIVOT -+ select GRKERNSEC_CHROOT_DOUBLE -+ select GRKERNSEC_CHROOT_CHDIR -+ select GRKERNSEC_CHROOT_MKNOD -+ select GRKERNSEC_PROC -+ select GRKERNSEC_PROC_USERGROUP -+ select GRKERNSEC_MODSTOP if (MODULES) -+ select PAX_RANDUSTACK -+ select PAX_ASLR -+ select PAX_RANDMMAP -+ select PAX_REFCOUNT if (X86) -+ -+ help -+ If you say Y here, several features in addition to those included -+ in the low additional security level will be enabled. These -+ features provide even more security to your system, though in rare -+ cases they may be incompatible with very old or poorly written -+ software. If you enable this option, make sure that your auth -+ service (identd) is running as gid 1001. With this option, -+ the following features (in addition to those provided in the -+ low additional security level) will be enabled: -+ -+ - Failed fork logging -+ - Time change logging -+ - Signal logging -+ - Deny mounts in chroot -+ - Deny double chrooting -+ - Deny sysctl writes in chroot -+ - Deny mknod in chroot -+ - Deny access to abstract AF_UNIX sockets out of chroot -+ - Deny pivot_root in chroot -+ - Denied writes of /dev/kmem, /dev/mem, and /dev/port -+ - /proc restrictions with special GID set to 10 (usually wheel) -+ - Address Space Layout Randomization (ASLR) -+ - Prevent exploitation of most refcount overflows -+ -+config GRKERNSEC_HIGH -+ bool "High" -+ select GRKERNSEC_LINK -+ select GRKERNSEC_FIFO -+ select GRKERNSEC_EXECVE -+ select GRKERNSEC_DMESG -+ select GRKERNSEC_FORKFAIL -+ select GRKERNSEC_TIME -+ select GRKERNSEC_SIGNAL -+ select GRKERNSEC_CHROOT -+ select GRKERNSEC_CHROOT_SHMAT -+ select GRKERNSEC_CHROOT_UNIX -+ select GRKERNSEC_CHROOT_MOUNT -+ select GRKERNSEC_CHROOT_FCHDIR -+ select GRKERNSEC_CHROOT_PIVOT -+ select GRKERNSEC_CHROOT_DOUBLE -+ select GRKERNSEC_CHROOT_CHDIR -+ select GRKERNSEC_CHROOT_MKNOD -+ select GRKERNSEC_CHROOT_CAPS -+ select GRKERNSEC_CHROOT_SYSCTL -+ select GRKERNSEC_CHROOT_FINDTASK -+ select GRKERNSEC_PROC -+ select GRKERNSEC_PROC_MEMMAP if (PAX_NOEXEC || PAX_ASLR) -+ select GRKERNSEC_HIDESYM -+ select GRKERNSEC_BRUTE -+ select GRKERNSEC_PROC_USERGROUP -+ select GRKERNSEC_KMEM -+ select GRKERNSEC_RESLOG -+ select GRKERNSEC_RANDNET -+ select GRKERNSEC_PROC_ADD -+ select GRKERNSEC_CHROOT_CHMOD -+ select GRKERNSEC_CHROOT_NICE -+ select GRKERNSEC_AUDIT_MOUNT -+ select GRKERNSEC_MODSTOP if (MODULES) -+ select PAX -+ select PAX_RANDUSTACK -+ select PAX_ASLR -+ select PAX_RANDMMAP -+ select PAX_NOEXEC -+ select PAX_MPROTECT -+ select PAX_EI_PAX -+ select PAX_PT_PAX_FLAGS -+ select PAX_HAVE_ACL_FLAGS -+ select PAX_KERNEXEC if (X86 && !EFI && !COMPAT_VDSO && !PARAVIRT && (!X86_32 || X86_WP_WORKS_OK)) -+ select PAX_MEMORY_UDEREF if (!X86_64 && !COMPAT_VDSO) -+ select PAX_RANDKSTACK if (X86_TSC && !X86_64) -+ select PAX_SEGMEXEC if (X86 && !X86_64) -+ select PAX_PAGEEXEC if (!X86) -+ select PAX_EMUPLT if (ALPHA || PARISC || PPC32 || SPARC32 || SPARC64) -+ select PAX_DLRESOLVE if (SPARC32 || SPARC64) -+ select PAX_SYSCALL if (PPC32) -+ select PAX_EMUTRAMP if (PARISC) -+ select PAX_EMUSIGRT if (PARISC) -+ select PAX_ETEXECRELOCS if (ALPHA || IA64 || PARISC) -+ select PAX_REFCOUNT if (X86) -+ help -+ If you say Y here, many of the features of grsecurity will be -+ enabled, which will protect you against many kinds of attacks -+ against your system. The heightened security comes at a cost -+ of an increased chance of incompatibilities with rare software -+ on your machine. Since this security level enables PaX, you should -+ view <http://pax.grsecurity.net> and read about the PaX -+ project. While you are there, download chpax and run it on -+ binaries that cause problems with PaX. Also remember that -+ since the /proc restrictions are enabled, you must run your -+ identd as gid 1001. This security level enables the following -+ features in addition to those listed in the low and medium -+ security levels: -+ -+ - Additional /proc restrictions -+ - Chmod restrictions in chroot -+ - No signals, ptrace, or viewing of processes outside of chroot -+ - Capability restrictions in chroot -+ - Deny fchdir out of chroot -+ - Priority restrictions in chroot -+ - Segmentation-based implementation of PaX -+ - Mprotect restrictions -+ - Removal of addresses from /proc/<pid>/[smaps|maps|stat] -+ - Kernel stack randomization -+ - Mount/unmount/remount logging -+ - Kernel symbol hiding -+ - Prevention of memory exhaustion-based exploits -+config GRKERNSEC_CUSTOM -+ bool "Custom" -+ help -+ If you say Y here, you will be able to configure every grsecurity -+ option, which allows you to enable many more features that aren't -+ covered in the basic security levels. These additional features -+ include TPE, socket restrictions, and the sysctl system for -+ grsecurity. It is advised that you read through the help for -+ each option to determine its usefulness in your situation. -+ -+endchoice -+ -+menu "Address Space Protection" -+depends on GRKERNSEC -+ -+config GRKERNSEC_KMEM -+ bool "Deny writing to /dev/kmem, /dev/mem, and /dev/port" -+ help -+ If you say Y here, /dev/kmem and /dev/mem won't be allowed to -+ be written to via mmap or otherwise to modify the running kernel. -+ /dev/port will also not be allowed to be opened. If you have module -+ support disabled, enabling this will close up four ways that are -+ currently used to insert malicious code into the running kernel. -+ Even with all these features enabled, we still highly recommend that -+ you use the RBAC system, as it is still possible for an attacker to -+ modify the running kernel through privileged I/O granted by ioperm/iopl. -+ If you are not using XFree86, you may be able to stop this additional -+ case by enabling the 'Disable privileged I/O' option. Though nothing -+ legitimately writes to /dev/kmem, XFree86 does need to write to /dev/mem, -+ but only to video memory, which is the only writing we allow in this -+ case. If /dev/kmem or /dev/mem are mmaped without PROT_WRITE, they will -+ not be allowed to mprotect it with PROT_WRITE later. -+ It is highly recommended that you say Y here if you meet all the -+ conditions above. -+ -+config GRKERNSEC_IO -+ bool "Disable privileged I/O" -+ depends on X86 -+ select RTC_CLASS -+ select RTC_INTF_DEV -+ help -+ If you say Y here, all ioperm and iopl calls will return an error. -+ Ioperm and iopl can be used to modify the running kernel. -+ Unfortunately, some programs need this access to operate properly, -+ the most notable of which are XFree86 and hwclock. hwclock can be -+ remedied by having RTC support in the kernel, so real-time -+ clock support is enabled if this option is enabled, to ensure -+ that hwclock operates correctly. XFree86 still will not -+ operate correctly with this option enabled, so DO NOT CHOOSE Y -+ IF YOU USE XFree86. If you use XFree86 and you still want to -+ protect your kernel against modification, use the RBAC system. -+ -+config GRKERNSEC_PROC_MEMMAP -+ bool "Remove addresses from /proc/<pid>/[smaps|maps|stat]" -+ depends on PAX_NOEXEC || PAX_ASLR -+ help -+ If you say Y here, the /proc/<pid>/maps and /proc/<pid>/stat files will -+ give no information about the addresses of its mappings if -+ PaX features that rely on random addresses are enabled on the task. -+ If you use PaX it is greatly recommended that you say Y here as it -+ closes up a hole that makes the full ASLR useless for suid -+ binaries. -+ -+config GRKERNSEC_BRUTE -+ bool "Deter exploit bruteforcing" -+ help -+ If you say Y here, attempts to bruteforce exploits against forking -+ daemons such as apache or sshd will be deterred. When a child of a -+ forking daemon is killed by PaX or crashes due to an illegal -+ instruction, the parent process will be delayed 30 seconds upon every -+ subsequent fork until the administrator is able to assess the -+ situation and restart the daemon. It is recommended that you also -+ enable signal logging in the auditing section so that logs are -+ generated when a process performs an illegal instruction. -+ -+config GRKERNSEC_MODSTOP -+ bool "Runtime module disabling" -+ depends on MODULES -+ help -+ If you say Y here, you will be able to disable the ability to (un)load -+ modules at runtime. This feature is useful if you need the ability -+ to load kernel modules at boot time, but do not want to allow an -+ attacker to load a rootkit kernel module into the system, or to remove -+ a loaded kernel module important to system functioning. You should -+ enable the /dev/mem protection feature as well, since rootkits can be -+ inserted into the kernel via other methods than kernel modules. Since -+ an untrusted module could still be loaded by modifying init scripts and -+ rebooting the system, it is also recommended that you enable the RBAC -+ system. If you enable this option, a sysctl option with name -+ "disable_modules" will be created. Setting this option to "1" disables -+ module loading. After this option is set, no further writes to it are -+ allowed until the system is rebooted. -+ -+config GRKERNSEC_HIDESYM -+ bool "Hide kernel symbols" -+ help -+ If you say Y here, getting information on loaded modules, and -+ displaying all kernel symbols through a syscall will be restricted -+ to users with CAP_SYS_MODULE. This option is only effective -+ provided the following conditions are met: -+ 1) The kernel using grsecurity is not precompiled by some distribution -+ 2) You are using the RBAC system and hiding other files such as your -+ kernel image and System.map -+ 3) You have the additional /proc restrictions enabled, which removes -+ /proc/kcore -+ If the above conditions are met, this option will aid to provide a -+ useful protection against local and remote kernel exploitation of -+ overflows and arbitrary read/write vulnerabilities. -+ -+endmenu -+menu "Role Based Access Control Options" -+depends on GRKERNSEC -+ -+config GRKERNSEC_ACL_HIDEKERN -+ bool "Hide kernel processes" -+ help -+ If you say Y here, all kernel threads will be hidden to all -+ processes but those whose subject has the "view hidden processes" -+ flag. -+ -+config GRKERNSEC_ACL_MAXTRIES -+ int "Maximum tries before password lockout" -+ default 3 -+ help -+ This option enforces the maximum number of times a user can attempt -+ to authorize themselves with the grsecurity RBAC system before being -+ denied the ability to attempt authorization again for a specified time. -+ The lower the number, the harder it will be to brute-force a password. -+ -+config GRKERNSEC_ACL_TIMEOUT -+ int "Time to wait after max password tries, in seconds" -+ default 30 -+ help -+ This option specifies the time the user must wait after attempting to -+ authorize to the RBAC system with the maximum number of invalid -+ passwords. The higher the number, the harder it will be to brute-force -+ a password. -+ -+endmenu -+menu "Filesystem Protections" -+depends on GRKERNSEC -+ -+config GRKERNSEC_PROC -+ bool "Proc restrictions" -+ help -+ If you say Y here, the permissions of the /proc filesystem -+ will be altered to enhance system security and privacy. You MUST -+ choose either a user only restriction or a user and group restriction. -+ Depending upon the option you choose, you can either restrict users to -+ see only the processes they themselves run, or choose a group that can -+ view all processes and files normally restricted to root if you choose -+ the "restrict to user only" option. NOTE: If you're running identd as -+ a non-root user, you will have to run it as the group you specify here. -+ -+config GRKERNSEC_PROC_USER -+ bool "Restrict /proc to user only" -+ depends on GRKERNSEC_PROC -+ help -+ If you say Y here, non-root users will only be able to view their own -+ processes, and restricts them from viewing network-related information, -+ and viewing kernel symbol and module information. -+ -+config GRKERNSEC_PROC_USERGROUP -+ bool "Allow special group" -+ depends on GRKERNSEC_PROC && !GRKERNSEC_PROC_USER -+ help -+ If you say Y here, you will be able to select a group that will be -+ able to view all processes, network-related information, and -+ kernel and symbol information. This option is useful if you want -+ to run identd as a non-root user. -+ -+config GRKERNSEC_PROC_GID -+ int "GID for special group" -+ depends on GRKERNSEC_PROC_USERGROUP -+ default 1001 -+ -+config GRKERNSEC_PROC_ADD -+ bool "Additional restrictions" -+ depends on GRKERNSEC_PROC_USER || GRKERNSEC_PROC_USERGROUP -+ help -+ If you say Y here, additional restrictions will be placed on -+ /proc that keep normal users from viewing device information and -+ slabinfo information that could be useful for exploits. -+ -+config GRKERNSEC_LINK -+ bool "Linking restrictions" -+ help -+ If you say Y here, /tmp race exploits will be prevented, since users -+ will no longer be able to follow symlinks owned by other users in -+ world-writable +t directories (i.e. /tmp), unless the owner of the -+ symlink is the owner of the directory. users will also not be -+ able to hardlink to files they do not own. If the sysctl option is -+ enabled, a sysctl option with name "linking_restrictions" is created. -+ -+config GRKERNSEC_FIFO -+ bool "FIFO restrictions" -+ help -+ If you say Y here, users will not be able to write to FIFOs they don't -+ own in world-writable +t directories (i.e. /tmp), unless the owner of -+ the FIFO is the same owner of the directory it's held in. If the sysctl -+ option is enabled, a sysctl option with name "fifo_restrictions" is -+ created. -+ -+config GRKERNSEC_CHROOT -+ bool "Chroot jail restrictions" -+ help -+ If you say Y here, you will be able to choose several options that will -+ make breaking out of a chrooted jail much more difficult. If you -+ encounter no software incompatibilities with the following options, it -+ is recommended that you enable each one. -+ -+config GRKERNSEC_CHROOT_MOUNT -+ bool "Deny mounts" -+ depends on GRKERNSEC_CHROOT -+ help -+ If you say Y here, processes inside a chroot will not be able to -+ mount or remount filesystems. If the sysctl option is enabled, a -+ sysctl option with name "chroot_deny_mount" is created. -+ -+config GRKERNSEC_CHROOT_DOUBLE -+ bool "Deny double-chroots" -+ depends on GRKERNSEC_CHROOT -+ help -+ If you say Y here, processes inside a chroot will not be able to chroot -+ again outside the chroot. This is a widely used method of breaking -+ out of a chroot jail and should not be allowed. If the sysctl -+ option is enabled, a sysctl option with name -+ "chroot_deny_chroot" is created. -+ -+config GRKERNSEC_CHROOT_PIVOT -+ bool "Deny pivot_root in chroot" -+ depends on GRKERNSEC_CHROOT -+ help -+ If you say Y here, processes inside a chroot will not be able to use -+ a function called pivot_root() that was introduced in Linux 2.3.41. It -+ works similar to chroot in that it changes the root filesystem. This -+ function could be misused in a chrooted process to attempt to break out -+ of the chroot, and therefore should not be allowed. If the sysctl -+ option is enabled, a sysctl option with name "chroot_deny_pivot" is -+ created. -+ -+config GRKERNSEC_CHROOT_CHDIR -+ bool "Enforce chdir(\"/\") on all chroots" -+ depends on GRKERNSEC_CHROOT -+ help -+ If you say Y here, the current working directory of all newly-chrooted -+ applications will be set to the the root directory of the chroot. -+ The man page on chroot(2) states: -+ Note that this call does not change the current working -+ directory, so that `.' can be outside the tree rooted at -+ `/'. In particular, the super-user can escape from a -+ `chroot jail' by doing `mkdir foo; chroot foo; cd ..'. -+ -+ It is recommended that you say Y here, since it's not known to break -+ any software. If the sysctl option is enabled, a sysctl option with -+ name "chroot_enforce_chdir" is created. -+ -+config GRKERNSEC_CHROOT_CHMOD -+ bool "Deny (f)chmod +s" -+ depends on GRKERNSEC_CHROOT -+ help -+ If you say Y here, processes inside a chroot will not be able to chmod -+ or fchmod files to make them have suid or sgid bits. This protects -+ against another published method of breaking a chroot. If the sysctl -+ option is enabled, a sysctl option with name "chroot_deny_chmod" is -+ created. -+ -+config GRKERNSEC_CHROOT_FCHDIR -+ bool "Deny fchdir out of chroot" -+ depends on GRKERNSEC_CHROOT -+ help -+ If you say Y here, a well-known method of breaking chroots by fchdir'ing -+ to a file descriptor of the chrooting process that points to a directory -+ outside the filesystem will be stopped. If the sysctl option -+ is enabled, a sysctl option with name "chroot_deny_fchdir" is created. -+ -+config GRKERNSEC_CHROOT_MKNOD -+ bool "Deny mknod" -+ depends on GRKERNSEC_CHROOT -+ help -+ If you say Y here, processes inside a chroot will not be allowed to -+ mknod. The problem with using mknod inside a chroot is that it -+ would allow an attacker to create a device entry that is the same -+ as one on the physical root of your system, which could range from -+ anything from the console device to a device for your harddrive (which -+ they could then use to wipe the drive or steal data). It is recommended -+ that you say Y here, unless you run into software incompatibilities. -+ If the sysctl option is enabled, a sysctl option with name -+ "chroot_deny_mknod" is created. -+ -+config GRKERNSEC_CHROOT_SHMAT -+ bool "Deny shmat() out of chroot" -+ depends on GRKERNSEC_CHROOT -+ help -+ If you say Y here, processes inside a chroot will not be able to attach -+ to shared memory segments that were created outside of the chroot jail. -+ It is recommended that you say Y here. If the sysctl option is enabled, -+ a sysctl option with name "chroot_deny_shmat" is created. -+ -+config GRKERNSEC_CHROOT_UNIX -+ bool "Deny access to abstract AF_UNIX sockets out of chroot" -+ depends on GRKERNSEC_CHROOT -+ help -+ If you say Y here, processes inside a chroot will not be able to -+ connect to abstract (meaning not belonging to a filesystem) Unix -+ domain sockets that were bound outside of a chroot. It is recommended -+ that you say Y here. If the sysctl option is enabled, a sysctl option -+ with name "chroot_deny_unix" is created. -+ -+config GRKERNSEC_CHROOT_FINDTASK -+ bool "Protect outside processes" -+ depends on GRKERNSEC_CHROOT -+ help -+ If you say Y here, processes inside a chroot will not be able to -+ kill, send signals with fcntl, ptrace, capget, getpgid, getsid, -+ or view any process outside of the chroot. If the sysctl -+ option is enabled, a sysctl option with name "chroot_findtask" is -+ created. -+ -+config GRKERNSEC_CHROOT_NICE -+ bool "Restrict priority changes" -+ depends on GRKERNSEC_CHROOT -+ help -+ If you say Y here, processes inside a chroot will not be able to raise -+ the priority of processes in the chroot, or alter the priority of -+ processes outside the chroot. This provides more security than simply -+ removing CAP_SYS_NICE from the process' capability set. If the -+ sysctl option is enabled, a sysctl option with name "chroot_restrict_nice" -+ is created. -+ -+config GRKERNSEC_CHROOT_SYSCTL -+ bool "Deny sysctl writes" -+ depends on GRKERNSEC_CHROOT -+ help -+ If you say Y here, an attacker in a chroot will not be able to -+ write to sysctl entries, either by sysctl(2) or through a /proc -+ interface. It is strongly recommended that you say Y here. If the -+ sysctl option is enabled, a sysctl option with name -+ "chroot_deny_sysctl" is created. -+ -+config GRKERNSEC_CHROOT_CAPS -+ bool "Capability restrictions" -+ depends on GRKERNSEC_CHROOT -+ help -+ If you say Y here, the capabilities on all root processes within a -+ chroot jail will be lowered to stop module insertion, raw i/o, -+ system and net admin tasks, rebooting the system, modifying immutable -+ files, modifying IPC owned by another, and changing the system time. -+ This is left an option because it can break some apps. Disable this -+ if your chrooted apps are having problems performing those kinds of -+ tasks. If the sysctl option is enabled, a sysctl option with -+ name "chroot_caps" is created. -+ -+endmenu -+menu "Kernel Auditing" -+depends on GRKERNSEC -+ -+config GRKERNSEC_AUDIT_GROUP -+ bool "Single group for auditing" -+ help -+ If you say Y here, the exec, chdir, (un)mount, and ipc logging features -+ will only operate on a group you specify. This option is recommended -+ if you only want to watch certain users instead of having a large -+ amount of logs from the entire system. If the sysctl option is enabled, -+ a sysctl option with name "audit_group" is created. -+ -+config GRKERNSEC_AUDIT_GID -+ int "GID for auditing" -+ depends on GRKERNSEC_AUDIT_GROUP -+ default 1007 -+ -+config GRKERNSEC_EXECLOG -+ bool "Exec logging" -+ help -+ If you say Y here, all execve() calls will be logged (since the -+ other exec*() calls are frontends to execve(), all execution -+ will be logged). Useful for shell-servers that like to keep track -+ of their users. If the sysctl option is enabled, a sysctl option with -+ name "exec_logging" is created. -+ WARNING: This option when enabled will produce a LOT of logs, especially -+ on an active system. -+ -+config GRKERNSEC_RESLOG -+ bool "Resource logging" -+ help -+ If you say Y here, all attempts to overstep resource limits will -+ be logged with the resource name, the requested size, and the current -+ limit. It is highly recommended that you say Y here. If the sysctl -+ option is enabled, a sysctl option with name "resource_logging" is -+ created. If the RBAC system is enabled, the sysctl value is ignored. -+ -+config GRKERNSEC_CHROOT_EXECLOG -+ bool "Log execs within chroot" -+ help -+ If you say Y here, all executions inside a chroot jail will be logged -+ to syslog. This can cause a large amount of logs if certain -+ applications (eg. djb's daemontools) are installed on the system, and -+ is therefore left as an option. If the sysctl option is enabled, a -+ sysctl option with name "chroot_execlog" is created. -+ -+config GRKERNSEC_AUDIT_CHDIR -+ bool "Chdir logging" -+ help -+ If you say Y here, all chdir() calls will be logged. If the sysctl -+ option is enabled, a sysctl option with name "audit_chdir" is created. -+ -+config GRKERNSEC_AUDIT_MOUNT -+ bool "(Un)Mount logging" -+ help -+ If you say Y here, all mounts and unmounts will be logged. If the -+ sysctl option is enabled, a sysctl option with name "audit_mount" is -+ created. -+ -+config GRKERNSEC_AUDIT_IPC -+ bool "IPC logging" -+ help -+ If you say Y here, creation and removal of message queues, semaphores, -+ and shared memory will be logged. If the sysctl option is enabled, a -+ sysctl option with name "audit_ipc" is created. -+ -+config GRKERNSEC_SIGNAL -+ bool "Signal logging" -+ help -+ If you say Y here, certain important signals will be logged, such as -+ SIGSEGV, which will as a result inform you of when a error in a program -+ occurred, which in some cases could mean a possible exploit attempt. -+ If the sysctl option is enabled, a sysctl option with name -+ "signal_logging" is created. -+ -+config GRKERNSEC_FORKFAIL -+ bool "Fork failure logging" -+ help -+ If you say Y here, all failed fork() attempts will be logged. -+ This could suggest a fork bomb, or someone attempting to overstep -+ their process limit. If the sysctl option is enabled, a sysctl option -+ with name "forkfail_logging" is created. -+ -+config GRKERNSEC_TIME -+ bool "Time change logging" -+ help -+ If you say Y here, any changes of the system clock will be logged. -+ If the sysctl option is enabled, a sysctl option with name -+ "timechange_logging" is created. -+ -+config GRKERNSEC_PROC_IPADDR -+ bool "/proc/<pid>/ipaddr support" -+ help -+ If you say Y here, a new entry will be added to each /proc/<pid> -+ directory that contains the IP address of the person using the task. -+ The IP is carried across local TCP and AF_UNIX stream sockets. -+ This information can be useful for IDS/IPSes to perform remote response -+ to a local attack. The entry is readable by only the owner of the -+ process (and root if he has CAP_DAC_OVERRIDE, which can be removed via -+ the RBAC system), and thus does not create privacy concerns. -+ -+config GRKERNSEC_AUDIT_TEXTREL -+ bool 'ELF text relocations logging (READ HELP)' -+ depends on PAX_MPROTECT -+ help -+ If you say Y here, text relocations will be logged with the filename -+ of the offending library or binary. The purpose of the feature is -+ to help Linux distribution developers get rid of libraries and -+ binaries that need text relocations which hinder the future progress -+ of PaX. Only Linux distribution developers should say Y here, and -+ never on a production machine, as this option creates an information -+ leak that could aid an attacker in defeating the randomization of -+ a single memory region. If the sysctl option is enabled, a sysctl -+ option with name "audit_textrel" is created. -+ -+endmenu -+ -+menu "Executable Protections" -+depends on GRKERNSEC -+ -+config GRKERNSEC_EXECVE -+ bool "Enforce RLIMIT_NPROC on execs" -+ help -+ If you say Y here, users with a resource limit on processes will -+ have the value checked during execve() calls. The current system -+ only checks the system limit during fork() calls. If the sysctl option -+ is enabled, a sysctl option with name "execve_limiting" is created. -+ -+config GRKERNSEC_DMESG -+ bool "Dmesg(8) restriction" -+ help -+ If you say Y here, non-root users will not be able to use dmesg(8) -+ to view up to the last 4kb of messages in the kernel's log buffer. -+ If the sysctl option is enabled, a sysctl option with name "dmesg" is -+ created. -+ -+config GRKERNSEC_TPE -+ bool "Trusted Path Execution (TPE)" -+ help -+ If you say Y here, you will be able to choose a gid to add to the -+ supplementary groups of users you want to mark as "untrusted." -+ These users will not be able to execute any files that are not in -+ root-owned directories writable only by root. If the sysctl option -+ is enabled, a sysctl option with name "tpe" is created. -+ -+config GRKERNSEC_TPE_ALL -+ bool "Partially restrict non-root users" -+ depends on GRKERNSEC_TPE -+ help -+ If you say Y here, All non-root users other than the ones in the -+ group specified in the main TPE option will only be allowed to -+ execute files in directories they own that are not group or -+ world-writable, or in directories owned by root and writable only by -+ root. If the sysctl option is enabled, a sysctl option with name -+ "tpe_restrict_all" is created. -+ -+config GRKERNSEC_TPE_INVERT -+ bool "Invert GID option" -+ depends on GRKERNSEC_TPE -+ help -+ If you say Y here, the group you specify in the TPE configuration will -+ decide what group TPE restrictions will be *disabled* for. This -+ option is useful if you want TPE restrictions to be applied to most -+ users on the system. -+ -+config GRKERNSEC_TPE_GID -+ int "GID for untrusted users" -+ depends on GRKERNSEC_TPE && !GRKERNSEC_TPE_INVERT -+ default 1005 -+ help -+ If you have selected the "Invert GID option" above, setting this -+ GID determines what group TPE restrictions will be *disabled* for. -+ If you have not selected the "Invert GID option" above, setting this -+ GID determines what group TPE restrictions will be *enabled* for. -+ If the sysctl option is enabled, a sysctl option with name "tpe_gid" -+ is created. -+ -+config GRKERNSEC_TPE_GID -+ int "GID for trusted users" -+ depends on GRKERNSEC_TPE && GRKERNSEC_TPE_INVERT -+ default 1005 -+ help -+ If you have selected the "Invert GID option" above, setting this -+ GID determines what group TPE restrictions will be *disabled* for. -+ If you have not selected the "Invert GID option" above, setting this -+ GID determines what group TPE restrictions will be *enabled* for. -+ If the sysctl option is enabled, a sysctl option with name "tpe_gid" -+ is created. -+ -+endmenu -+menu "Network Protections" -+depends on GRKERNSEC -+ -+config GRKERNSEC_RANDNET -+ bool "Larger entropy pools" -+ help -+ If you say Y here, the entropy pools used for many features of Linux -+ and grsecurity will be doubled in size. Since several grsecurity -+ features use additional randomness, it is recommended that you say Y -+ here. Saying Y here has a similar effect as modifying -+ /proc/sys/kernel/random/poolsize. -+ -+config GRKERNSEC_SOCKET -+ bool "Socket restrictions" -+ help -+ If you say Y here, you will be able to choose from several options. -+ If you assign a GID on your system and add it to the supplementary -+ groups of users you want to restrict socket access to, this patch -+ will perform up to three things, based on the option(s) you choose. -+ -+config GRKERNSEC_SOCKET_ALL -+ bool "Deny any sockets to group" -+ depends on GRKERNSEC_SOCKET -+ help -+ If you say Y here, you will be able to choose a GID of whose users will -+ be unable to connect to other hosts from your machine or run server -+ applications from your machine. If the sysctl option is enabled, a -+ sysctl option with name "socket_all" is created. -+ -+config GRKERNSEC_SOCKET_ALL_GID -+ int "GID to deny all sockets for" -+ depends on GRKERNSEC_SOCKET_ALL -+ default 1004 -+ help -+ Here you can choose the GID to disable socket access for. Remember to -+ add the users you want socket access disabled for to the GID -+ specified here. If the sysctl option is enabled, a sysctl option -+ with name "socket_all_gid" is created. -+ -+config GRKERNSEC_SOCKET_CLIENT -+ bool "Deny client sockets to group" -+ depends on GRKERNSEC_SOCKET -+ help -+ If you say Y here, you will be able to choose a GID of whose users will -+ be unable to connect to other hosts from your machine, but will be -+ able to run servers. If this option is enabled, all users in the group -+ you specify will have to use passive mode when initiating ftp transfers -+ from the shell on your machine. If the sysctl option is enabled, a -+ sysctl option with name "socket_client" is created. -+ -+config GRKERNSEC_SOCKET_CLIENT_GID -+ int "GID to deny client sockets for" -+ depends on GRKERNSEC_SOCKET_CLIENT -+ default 1003 -+ help -+ Here you can choose the GID to disable client socket access for. -+ Remember to add the users you want client socket access disabled for to -+ the GID specified here. If the sysctl option is enabled, a sysctl -+ option with name "socket_client_gid" is created. -+ -+config GRKERNSEC_SOCKET_SERVER -+ bool "Deny server sockets to group" -+ depends on GRKERNSEC_SOCKET -+ help -+ If you say Y here, you will be able to choose a GID of whose users will -+ be unable to run server applications from your machine. If the sysctl -+ option is enabled, a sysctl option with name "socket_server" is created. -+ -+config GRKERNSEC_SOCKET_SERVER_GID -+ int "GID to deny server sockets for" -+ depends on GRKERNSEC_SOCKET_SERVER -+ default 1002 -+ help -+ Here you can choose the GID to disable server socket access for. -+ Remember to add the users you want server socket access disabled for to -+ the GID specified here. If the sysctl option is enabled, a sysctl -+ option with name "socket_server_gid" is created. -+ -+endmenu -+menu "Sysctl support" -+depends on GRKERNSEC && SYSCTL -+ -+config GRKERNSEC_SYSCTL -+ bool "Sysctl support" -+ help -+ If you say Y here, you will be able to change the options that -+ grsecurity runs with at bootup, without having to recompile your -+ kernel. You can echo values to files in /proc/sys/kernel/grsecurity -+ to enable (1) or disable (0) various features. All the sysctl entries -+ are mutable until the "grsec_lock" entry is set to a non-zero value. -+ All features enabled in the kernel configuration are disabled at boot -+ if you do not say Y to the "Turn on features by default" option. -+ All options should be set at startup, and the grsec_lock entry should -+ be set to a non-zero value after all the options are set. -+ *THIS IS EXTREMELY IMPORTANT* -+ -+config GRKERNSEC_SYSCTL_ON -+ bool "Turn on features by default" -+ depends on GRKERNSEC_SYSCTL -+ help -+ If you say Y here, instead of having all features enabled in the -+ kernel configuration disabled at boot time, the features will be -+ enabled at boot time. It is recommended you say Y here unless -+ there is some reason you would want all sysctl-tunable features to -+ be disabled by default. As mentioned elsewhere, it is important -+ to enable the grsec_lock entry once you have finished modifying -+ the sysctl entries. -+ -+endmenu -+menu "Logging Options" -+depends on GRKERNSEC -+ -+config GRKERNSEC_FLOODTIME -+ int "Seconds in between log messages (minimum)" -+ default 10 -+ help -+ This option allows you to enforce the number of seconds between -+ grsecurity log messages. The default should be suitable for most -+ people, however, if you choose to change it, choose a value small enough -+ to allow informative logs to be produced, but large enough to -+ prevent flooding. -+ -+config GRKERNSEC_FLOODBURST -+ int "Number of messages in a burst (maximum)" -+ default 4 -+ help -+ This option allows you to choose the maximum number of messages allowed -+ within the flood time interval you chose in a separate option. The -+ default should be suitable for most people, however if you find that -+ many of your logs are being interpreted as flooding, you may want to -+ raise this value. -+ -+endmenu -+ -+endmenu -diff -urNp linux-2.6.28.8/grsecurity/Makefile linux-2.6.28.8/grsecurity/Makefile ---- linux-2.6.28.8/grsecurity/Makefile 1969-12-31 19:00:00.000000000 -0500 -+++ linux-2.6.28.8/grsecurity/Makefile 2009-02-21 09:37:49.000000000 -0500 -@@ -0,0 +1,20 @@ -+# grsecurity's ACL system was originally written in 2001 by Michael Dalton -+# during 2001-2005 it has been completely redesigned by Brad Spengler -+# into an RBAC system -+# -+# All code in this directory and various hooks inserted throughout the kernel -+# are copyright Brad Spengler, and released under the GPL v2 or higher -+ -+obj-y = grsec_chdir.o grsec_chroot.o grsec_exec.o grsec_fifo.o grsec_fork.o \ -+ grsec_mount.o grsec_sig.o grsec_sock.o grsec_sysctl.o \ -+ grsec_time.o grsec_tpe.o grsec_ipc.o grsec_link.o grsec_textrel.o -+ -+obj-$(CONFIG_GRKERNSEC) += grsec_init.o grsum.o gracl.o gracl_ip.o gracl_segv.o \ -+ gracl_cap.o gracl_alloc.o gracl_shm.o grsec_mem.o gracl_fs.o \ -+ gracl_learn.o grsec_log.o -+obj-$(CONFIG_GRKERNSEC_RESLOG) += gracl_res.o -+ -+ifndef CONFIG_GRKERNSEC -+obj-y += grsec_disabled.o -+endif -+ -diff -urNp linux-2.6.28.8/include/asm-frv/kmap_types.h linux-2.6.28.8/include/asm-frv/kmap_types.h ---- linux-2.6.28.8/include/asm-frv/kmap_types.h 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/include/asm-frv/kmap_types.h 2009-02-21 09:37:49.000000000 -0500 -@@ -23,6 +23,7 @@ enum km_type { - KM_IRQ1, - KM_SOFTIRQ0, - KM_SOFTIRQ1, -+ KM_CLEARPAGE, - KM_TYPE_NR - }; - -diff -urNp linux-2.6.28.8/include/asm-generic/futex.h linux-2.6.28.8/include/asm-generic/futex.h ---- linux-2.6.28.8/include/asm-generic/futex.h 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/include/asm-generic/futex.h 2009-02-21 09:37:49.000000000 -0500 -@@ -6,7 +6,7 @@ - #include <asm/errno.h> - - static inline int --futex_atomic_op_inuser (int encoded_op, int __user *uaddr) -+futex_atomic_op_inuser (int encoded_op, u32 __user *uaddr) - { - int op = (encoded_op >> 28) & 7; - int cmp = (encoded_op >> 24) & 15; -@@ -48,7 +48,7 @@ futex_atomic_op_inuser (int encoded_op, - } - - static inline int --futex_atomic_cmpxchg_inatomic(int __user *uaddr, int oldval, int newval) -+futex_atomic_cmpxchg_inatomic(u32 __user *uaddr, int oldval, int newval) - { - return -ENOSYS; - } -diff -urNp linux-2.6.28.8/include/asm-generic/vmlinux.lds.h linux-2.6.28.8/include/asm-generic/vmlinux.lds.h ---- linux-2.6.28.8/include/asm-generic/vmlinux.lds.h 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/include/asm-generic/vmlinux.lds.h 2009-02-21 09:37:49.000000000 -0500 -@@ -69,6 +69,7 @@ - .rodata : AT(ADDR(.rodata) - LOAD_OFFSET) { \ - VMLINUX_SYMBOL(__start_rodata) = .; \ - *(.rodata) *(.rodata.*) \ -+ *(.data.read_only) \ - *(__vermagic) /* Kernel version magic */ \ - *(__markers_strings) /* Markers: strings */ \ - *(__tracepoints_strings)/* Tracepoints: strings */ \ -diff -urNp linux-2.6.28.8/include/asm-m32r/kmap_types.h linux-2.6.28.8/include/asm-m32r/kmap_types.h ---- linux-2.6.28.8/include/asm-m32r/kmap_types.h 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/include/asm-m32r/kmap_types.h 2009-02-21 09:37:49.000000000 -0500 -@@ -21,7 +21,8 @@ D(9) KM_IRQ0, - D(10) KM_IRQ1, - D(11) KM_SOFTIRQ0, - D(12) KM_SOFTIRQ1, --D(13) KM_TYPE_NR -+D(13) KM_CLEARPAGE, -+D(14) KM_TYPE_NR - }; - - #undef D -diff -urNp linux-2.6.28.8/include/asm-m68k/kmap_types.h linux-2.6.28.8/include/asm-m68k/kmap_types.h ---- linux-2.6.28.8/include/asm-m68k/kmap_types.h 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/include/asm-m68k/kmap_types.h 2009-02-21 09:37:49.000000000 -0500 -@@ -15,6 +15,7 @@ enum km_type { - KM_IRQ1, - KM_SOFTIRQ0, - KM_SOFTIRQ1, -+ KM_CLEARPAGE, - KM_TYPE_NR - }; - -diff -urNp linux-2.6.28.8/include/asm-mn10300/kmap_types.h linux-2.6.28.8/include/asm-mn10300/kmap_types.h ---- linux-2.6.28.8/include/asm-mn10300/kmap_types.h 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/include/asm-mn10300/kmap_types.h 2009-02-21 09:37:49.000000000 -0500 -@@ -25,6 +25,7 @@ enum km_type { - KM_IRQ1, - KM_SOFTIRQ0, - KM_SOFTIRQ1, -+ KM_CLEARPAGE, - KM_TYPE_NR - }; - -diff -urNp linux-2.6.28.8/include/asm-xtensa/kmap_types.h linux-2.6.28.8/include/asm-xtensa/kmap_types.h ---- linux-2.6.28.8/include/asm-xtensa/kmap_types.h 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/include/asm-xtensa/kmap_types.h 2009-02-21 09:37:49.000000000 -0500 -@@ -25,6 +25,7 @@ enum km_type { - KM_IRQ1, - KM_SOFTIRQ0, - KM_SOFTIRQ1, -+ KM_CLEARPAGE, - KM_TYPE_NR - }; - -diff -urNp linux-2.6.28.8/include/drm/drm_pciids.h linux-2.6.28.8/include/drm/drm_pciids.h ---- linux-2.6.28.8/include/drm/drm_pciids.h 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/include/drm/drm_pciids.h 2009-02-21 09:37:49.000000000 -0500 -@@ -243,7 +243,7 @@ - {0x1002, 0x796d, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_RS740|RADEON_IS_IGP|RADEON_NEW_MEMMAP|RADEON_IS_IGPGART}, \ - {0x1002, 0x796e, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_RS740|RADEON_IS_IGP|RADEON_NEW_MEMMAP|RADEON_IS_IGPGART}, \ - {0x1002, 0x796f, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_RS740|RADEON_IS_IGP|RADEON_NEW_MEMMAP|RADEON_IS_IGPGART}, \ -- {0, 0, 0} -+ {0, 0, 0, 0, 0, 0} - - #define r128_PCI_IDS \ - {0x1002, 0x4c45, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0}, \ -@@ -283,14 +283,14 @@ - {0x1002, 0x5446, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0}, \ - {0x1002, 0x544C, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0}, \ - {0x1002, 0x5452, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0}, \ -- {0, 0, 0} -+ {0, 0, 0, 0, 0, 0} - - #define mga_PCI_IDS \ - {0x102b, 0x0520, PCI_ANY_ID, PCI_ANY_ID, 0, 0, MGA_CARD_TYPE_G200}, \ - {0x102b, 0x0521, PCI_ANY_ID, PCI_ANY_ID, 0, 0, MGA_CARD_TYPE_G200}, \ - {0x102b, 0x0525, PCI_ANY_ID, PCI_ANY_ID, 0, 0, MGA_CARD_TYPE_G400}, \ - {0x102b, 0x2527, PCI_ANY_ID, PCI_ANY_ID, 0, 0, MGA_CARD_TYPE_G550}, \ -- {0, 0, 0} -+ {0, 0, 0, 0, 0, 0} - - #define mach64_PCI_IDS \ - {0x1002, 0x4749, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0}, \ -@@ -313,7 +313,7 @@ - {0x1002, 0x4c53, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0}, \ - {0x1002, 0x4c4d, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0}, \ - {0x1002, 0x4c4e, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0}, \ -- {0, 0, 0} -+ {0, 0, 0, 0, 0, 0} - - #define sisdrv_PCI_IDS \ - {0x1039, 0x0300, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0}, \ -@@ -324,7 +324,7 @@ - {0x1039, 0x7300, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0}, \ - {0x18CA, 0x0040, PCI_ANY_ID, PCI_ANY_ID, 0, 0, SIS_CHIP_315}, \ - {0x18CA, 0x0042, PCI_ANY_ID, PCI_ANY_ID, 0, 0, SIS_CHIP_315}, \ -- {0, 0, 0} -+ {0, 0, 0, 0, 0, 0} - - #define tdfx_PCI_IDS \ - {0x121a, 0x0003, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0}, \ -@@ -333,7 +333,7 @@ - {0x121a, 0x0007, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0}, \ - {0x121a, 0x0009, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0}, \ - {0x121a, 0x000b, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0}, \ -- {0, 0, 0} -+ {0, 0, 0, 0, 0, 0} - - #define viadrv_PCI_IDS \ - {0x1106, 0x3022, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0}, \ -@@ -345,25 +345,25 @@ - {0x1106, 0x3343, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0}, \ - {0x1106, 0x3230, PCI_ANY_ID, PCI_ANY_ID, 0, 0, VIA_DX9_0}, \ - {0x1106, 0x3157, PCI_ANY_ID, PCI_ANY_ID, 0, 0, VIA_PRO_GROUP_A}, \ -- {0, 0, 0} -+ {0, 0, 0, 0, 0, 0} - - #define i810_PCI_IDS \ - {0x8086, 0x7121, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0}, \ - {0x8086, 0x7123, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0}, \ - {0x8086, 0x7125, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0}, \ - {0x8086, 0x1132, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0}, \ -- {0, 0, 0} -+ {0, 0, 0, 0, 0, 0} - - #define i830_PCI_IDS \ - {0x8086, 0x3577, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0}, \ - {0x8086, 0x2562, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0}, \ - {0x8086, 0x3582, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0}, \ - {0x8086, 0x2572, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0}, \ -- {0, 0, 0} -+ {0, 0, 0, 0, 0, 0} - - #define gamma_PCI_IDS \ - {0x3d3d, 0x0008, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0}, \ -- {0, 0, 0} -+ {0, 0, 0, 0, 0, 0} - - #define savage_PCI_IDS \ - {0x5333, 0x8a20, PCI_ANY_ID, PCI_ANY_ID, 0, 0, S3_SAVAGE3D}, \ -@@ -389,10 +389,10 @@ - {0x5333, 0x8d02, PCI_ANY_ID, PCI_ANY_ID, 0, 0, S3_TWISTER}, \ - {0x5333, 0x8d03, PCI_ANY_ID, PCI_ANY_ID, 0, 0, S3_PROSAVAGEDDR}, \ - {0x5333, 0x8d04, PCI_ANY_ID, PCI_ANY_ID, 0, 0, S3_PROSAVAGEDDR}, \ -- {0, 0, 0} -+ {0, 0, 0, 0, 0, 0} - - #define ffb_PCI_IDS \ -- {0, 0, 0} -+ {0, 0, 0, 0, 0, 0} - - #define i915_PCI_IDS \ - {0x8086, 0x3577, PCI_ANY_ID, PCI_ANY_ID, PCI_CLASS_DISPLAY_VGA << 8, 0xffff00, 0}, \ -@@ -418,4 +418,4 @@ - {0x8086, 0x2e02, PCI_ANY_ID, PCI_ANY_ID, PCI_CLASS_DISPLAY_VGA << 8, 0xffff00, 0}, \ - {0x8086, 0x2e12, PCI_ANY_ID, PCI_ANY_ID, PCI_CLASS_DISPLAY_VGA << 8, 0xffff00, 0}, \ - {0x8086, 0x2e22, PCI_ANY_ID, PCI_ANY_ID, PCI_CLASS_DISPLAY_VGA << 8, 0xffff00, 0}, \ -- {0, 0, 0} -+ {0, 0, 0, 0, 0, 0} -diff -urNp linux-2.6.28.8/include/linux/a.out.h linux-2.6.28.8/include/linux/a.out.h ---- linux-2.6.28.8/include/linux/a.out.h 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/include/linux/a.out.h 2009-02-21 09:37:49.000000000 -0500 -@@ -39,6 +39,14 @@ enum machine_type { - M_MIPS2 = 152 /* MIPS R6000/R4000 binary */ - }; - -+/* Constants for the N_FLAGS field */ -+#define F_PAX_PAGEEXEC 1 /* Paging based non-executable pages */ -+#define F_PAX_EMUTRAMP 2 /* Emulate trampolines */ -+#define F_PAX_MPROTECT 4 /* Restrict mprotect() */ -+#define F_PAX_RANDMMAP 8 /* Randomize mmap() base */ -+/*#define F_PAX_RANDEXEC 16*/ /* Randomize ET_EXEC base */ -+#define F_PAX_SEGMEXEC 32 /* Segmentation based non-executable pages */ -+ - #if !defined (N_MAGIC) - #define N_MAGIC(exec) ((exec).a_info & 0xffff) - #endif -diff -urNp linux-2.6.28.8/include/linux/binfmts.h linux-2.6.28.8/include/linux/binfmts.h ---- linux-2.6.28.8/include/linux/binfmts.h 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/include/linux/binfmts.h 2009-02-21 09:37:49.000000000 -0500 -@@ -74,6 +74,7 @@ struct linux_binfmt { - int (*load_binary)(struct linux_binprm *, struct pt_regs * regs); - int (*load_shlib)(struct file *); - int (*core_dump)(long signr, struct pt_regs *regs, struct file *file, unsigned long limit); -+ void (*handle_mprotect)(struct vm_area_struct *vma, unsigned long newflags); - unsigned long min_coredump; /* minimal dump size */ - int hasvdso; - }; -diff -urNp linux-2.6.28.8/include/linux/cache.h linux-2.6.28.8/include/linux/cache.h ---- linux-2.6.28.8/include/linux/cache.h 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/include/linux/cache.h 2009-02-21 09:37:49.000000000 -0500 -@@ -16,6 +16,10 @@ - #define __read_mostly - #endif - -+#ifndef __read_only -+#define __read_only __read_mostly -+#endif -+ - #ifndef ____cacheline_aligned - #define ____cacheline_aligned __attribute__((__aligned__(SMP_CACHE_BYTES))) - #endif -diff -urNp linux-2.6.28.8/include/linux/capability.h linux-2.6.28.8/include/linux/capability.h ---- linux-2.6.28.8/include/linux/capability.h 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/include/linux/capability.h 2009-02-21 09:37:49.000000000 -0500 -@@ -516,6 +516,7 @@ kernel_cap_t cap_set_effective(const ker - #define has_capability(t, cap) (security_capable((t), (cap)) == 0) - - extern int capable(int cap); -+int capable_nolog(int cap); - - #endif /* __KERNEL__ */ - -diff -urNp linux-2.6.28.8/include/linux/cpumask.h linux-2.6.28.8/include/linux/cpumask.h ---- linux-2.6.28.8/include/linux/cpumask.h 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/include/linux/cpumask.h 2009-02-21 09:37:49.000000000 -0500 -@@ -142,7 +142,6 @@ - #include <linux/bitmap.h> - - typedef struct cpumask { DECLARE_BITMAP(bits, NR_CPUS); } cpumask_t; --extern cpumask_t _unused_cpumask_arg_; - - #define cpu_set(cpu, dst) __cpu_set((cpu), &(dst)) - static inline void __cpu_set(int cpu, volatile cpumask_t *dstp) -diff -urNp linux-2.6.28.8/include/linux/elf.h linux-2.6.28.8/include/linux/elf.h ---- linux-2.6.28.8/include/linux/elf.h 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/include/linux/elf.h 2009-02-21 09:37:49.000000000 -0500 -@@ -49,6 +49,17 @@ typedef __s64 Elf64_Sxword; - #define PT_GNU_EH_FRAME 0x6474e550 - - #define PT_GNU_STACK (PT_LOOS + 0x474e551) -+#define PT_GNU_RELRO (PT_LOOS + 0x474e552) -+ -+#define PT_PAX_FLAGS (PT_LOOS + 0x5041580) -+ -+/* Constants for the e_flags field */ -+#define EF_PAX_PAGEEXEC 1 /* Paging based non-executable pages */ -+#define EF_PAX_EMUTRAMP 2 /* Emulate trampolines */ -+#define EF_PAX_MPROTECT 4 /* Restrict mprotect() */ -+#define EF_PAX_RANDMMAP 8 /* Randomize mmap() base */ -+/*#define EF_PAX_RANDEXEC 16*/ /* Randomize ET_EXEC base */ -+#define EF_PAX_SEGMEXEC 32 /* Segmentation based non-executable pages */ - - /* These constants define the different elf file types */ - #define ET_NONE 0 -@@ -84,6 +95,8 @@ typedef __s64 Elf64_Sxword; - #define DT_DEBUG 21 - #define DT_TEXTREL 22 - #define DT_JMPREL 23 -+#define DT_FLAGS 30 -+ #define DF_TEXTREL 0x00000004 - #define DT_ENCODING 32 - #define OLD_DT_LOOS 0x60000000 - #define DT_LOOS 0x6000000d -@@ -230,6 +243,19 @@ typedef struct elf64_hdr { - #define PF_W 0x2 - #define PF_X 0x1 - -+#define PF_PAGEEXEC (1U << 4) /* Enable PAGEEXEC */ -+#define PF_NOPAGEEXEC (1U << 5) /* Disable PAGEEXEC */ -+#define PF_SEGMEXEC (1U << 6) /* Enable SEGMEXEC */ -+#define PF_NOSEGMEXEC (1U << 7) /* Disable SEGMEXEC */ -+#define PF_MPROTECT (1U << 8) /* Enable MPROTECT */ -+#define PF_NOMPROTECT (1U << 9) /* Disable MPROTECT */ -+/*#define PF_RANDEXEC (1U << 10)*/ /* Enable RANDEXEC */ -+/*#define PF_NORANDEXEC (1U << 11)*/ /* Disable RANDEXEC */ -+#define PF_EMUTRAMP (1U << 12) /* Enable EMUTRAMP */ -+#define PF_NOEMUTRAMP (1U << 13) /* Disable EMUTRAMP */ -+#define PF_RANDMMAP (1U << 14) /* Enable RANDMMAP */ -+#define PF_NORANDMMAP (1U << 15) /* Disable RANDMMAP */ -+ - typedef struct elf32_phdr{ - Elf32_Word p_type; - Elf32_Off p_offset; -@@ -322,6 +348,8 @@ typedef struct elf64_shdr { - #define EI_OSABI 7 - #define EI_PAD 8 - -+#define EI_PAX 14 -+ - #define ELFMAG0 0x7f /* EI_MAG */ - #define ELFMAG1 'E' - #define ELFMAG2 'L' -@@ -384,6 +412,7 @@ extern Elf32_Dyn _DYNAMIC []; - #define elf_phdr elf32_phdr - #define elf_note elf32_note - #define elf_addr_t Elf32_Off -+#define elf_dyn Elf32_Dyn - - #else - -@@ -392,6 +421,7 @@ extern Elf64_Dyn _DYNAMIC []; - #define elf_phdr elf64_phdr - #define elf_note elf64_note - #define elf_addr_t Elf64_Off -+#define elf_dyn Elf64_Dyn - - #endif - -diff -urNp linux-2.6.28.8/include/linux/gracl.h linux-2.6.28.8/include/linux/gracl.h ---- linux-2.6.28.8/include/linux/gracl.h 1969-12-31 19:00:00.000000000 -0500 -+++ linux-2.6.28.8/include/linux/gracl.h 2009-02-21 09:37:49.000000000 -0500 -@@ -0,0 +1,318 @@ -+#ifndef GR_ACL_H -+#define GR_ACL_H -+ -+#include <linux/grdefs.h> -+#include <linux/resource.h> -+#include <linux/capability.h> -+#include <linux/dcache.h> -+#include <asm/resource.h> -+ -+/* Major status information */ -+ -+#define GR_VERSION "grsecurity 2.1.13" -+#define GRSECURITY_VERSION 0x2113 -+ -+enum { -+ GR_SHUTDOWN = 0, -+ GR_ENABLE = 1, -+ GR_SPROLE = 2, -+ GR_RELOAD = 3, -+ GR_SEGVMOD = 4, -+ GR_STATUS = 5, -+ GR_UNSPROLE = 6, -+ GR_PASSSET = 7, -+ GR_SPROLEPAM = 8, -+}; -+ -+/* Password setup definitions -+ * kernel/grhash.c */ -+enum { -+ GR_PW_LEN = 128, -+ GR_SALT_LEN = 16, -+ GR_SHA_LEN = 32, -+}; -+ -+enum { -+ GR_SPROLE_LEN = 64, -+}; -+ -+#define GR_NLIMITS (RLIMIT_LOCKS + 2) -+ -+/* Begin Data Structures */ -+ -+struct sprole_pw { -+ unsigned char *rolename; -+ unsigned char salt[GR_SALT_LEN]; -+ unsigned char sum[GR_SHA_LEN]; /* 256-bit SHA hash of the password */ -+}; -+ -+struct name_entry { -+ __u32 key; -+ ino_t inode; -+ dev_t device; -+ char *name; -+ __u16 len; -+ __u8 deleted; -+ struct name_entry *prev; -+ struct name_entry *next; -+}; -+ -+struct inodev_entry { -+ struct name_entry *nentry; -+ struct inodev_entry *prev; -+ struct inodev_entry *next; -+}; -+ -+struct acl_role_db { -+ struct acl_role_label **r_hash; -+ __u32 r_size; -+}; -+ -+struct inodev_db { -+ struct inodev_entry **i_hash; -+ __u32 i_size; -+}; -+ -+struct name_db { -+ struct name_entry **n_hash; -+ __u32 n_size; -+}; -+ -+struct crash_uid { -+ uid_t uid; -+ unsigned long expires; -+}; -+ -+struct gr_hash_struct { -+ void **table; -+ void **nametable; -+ void *first; -+ __u32 table_size; -+ __u32 used_size; -+ int type; -+}; -+ -+/* Userspace Grsecurity ACL data structures */ -+ -+struct acl_subject_label { -+ char *filename; -+ ino_t inode; -+ dev_t device; -+ __u32 mode; -+ kernel_cap_t cap_mask; -+ kernel_cap_t cap_lower; -+ -+ struct rlimit res[GR_NLIMITS]; -+ __u16 resmask; -+ -+ __u8 user_trans_type; -+ __u8 group_trans_type; -+ uid_t *user_transitions; -+ gid_t *group_transitions; -+ __u16 user_trans_num; -+ __u16 group_trans_num; -+ -+ __u32 ip_proto[8]; -+ __u32 ip_type; -+ struct acl_ip_label **ips; -+ __u32 ip_num; -+ __u32 inaddr_any_override; -+ -+ __u32 crashes; -+ unsigned long expires; -+ -+ struct acl_subject_label *parent_subject; -+ struct gr_hash_struct *hash; -+ struct acl_subject_label *prev; -+ struct acl_subject_label *next; -+ -+ struct acl_object_label **obj_hash; -+ __u32 obj_hash_size; -+ __u16 pax_flags; -+}; -+ -+struct role_allowed_ip { -+ __u32 addr; -+ __u32 netmask; -+ -+ struct role_allowed_ip *prev; -+ struct role_allowed_ip *next; -+}; -+ -+struct role_transition { -+ char *rolename; -+ -+ struct role_transition *prev; -+ struct role_transition *next; -+}; -+ -+struct acl_role_label { -+ char *rolename; -+ uid_t uidgid; -+ __u16 roletype; -+ -+ __u16 auth_attempts; -+ unsigned long expires; -+ -+ struct acl_subject_label *root_label; -+ struct gr_hash_struct *hash; -+ -+ struct acl_role_label *prev; -+ struct acl_role_label *next; -+ -+ struct role_transition *transitions; -+ struct role_allowed_ip *allowed_ips; -+ uid_t *domain_children; -+ __u16 domain_child_num; -+ -+ struct acl_subject_label **subj_hash; -+ __u32 subj_hash_size; -+}; -+ -+struct user_acl_role_db { -+ struct acl_role_label **r_table; -+ __u32 num_pointers; /* Number of allocations to track */ -+ __u32 num_roles; /* Number of roles */ -+ __u32 num_domain_children; /* Number of domain children */ -+ __u32 num_subjects; /* Number of subjects */ -+ __u32 num_objects; /* Number of objects */ -+}; -+ -+struct acl_object_label { -+ char *filename; -+ ino_t inode; -+ dev_t device; -+ __u32 mode; -+ -+ struct acl_subject_label *nested; -+ struct acl_object_label *globbed; -+ -+ /* next two structures not used */ -+ -+ struct acl_object_label *prev; -+ struct acl_object_label *next; -+}; -+ -+struct acl_ip_label { -+ char *iface; -+ __u32 addr; -+ __u32 netmask; -+ __u16 low, high; -+ __u8 mode; -+ __u32 type; -+ __u32 proto[8]; -+ -+ /* next two structures not used */ -+ -+ struct acl_ip_label *prev; -+ struct acl_ip_label *next; -+}; -+ -+struct gr_arg { -+ struct user_acl_role_db role_db; -+ unsigned char pw[GR_PW_LEN]; -+ unsigned char salt[GR_SALT_LEN]; -+ unsigned char sum[GR_SHA_LEN]; -+ unsigned char sp_role[GR_SPROLE_LEN]; -+ struct sprole_pw *sprole_pws; -+ dev_t segv_device; -+ ino_t segv_inode; -+ uid_t segv_uid; -+ __u16 num_sprole_pws; -+ __u16 mode; -+}; -+ -+struct gr_arg_wrapper { -+ struct gr_arg *arg; -+ __u32 version; -+ __u32 size; -+}; -+ -+struct subject_map { -+ struct acl_subject_label *user; -+ struct acl_subject_label *kernel; -+ struct subject_map *prev; -+ struct subject_map *next; -+}; -+ -+struct acl_subj_map_db { -+ struct subject_map **s_hash; -+ __u32 s_size; -+}; -+ -+/* End Data Structures Section */ -+ -+/* Hash functions generated by empirical testing by Brad Spengler -+ Makes good use of the low bits of the inode. Generally 0-1 times -+ in loop for successful match. 0-3 for unsuccessful match. -+ Shift/add algorithm with modulus of table size and an XOR*/ -+ -+static __inline__ unsigned int -+rhash(const uid_t uid, const __u16 type, const unsigned int sz) -+{ -+ return (((uid << type) + (uid ^ type)) % sz); -+} -+ -+ static __inline__ unsigned int -+shash(const struct acl_subject_label *userp, const unsigned int sz) -+{ -+ return ((const unsigned long)userp % sz); -+} -+ -+static __inline__ unsigned int -+fhash(const ino_t ino, const dev_t dev, const unsigned int sz) -+{ -+ return (((ino + dev) ^ ((ino << 13) + (ino << 23) + (dev << 9))) % sz); -+} -+ -+static __inline__ unsigned int -+nhash(const char *name, const __u16 len, const unsigned int sz) -+{ -+ return full_name_hash(name, len) % sz; -+} -+ -+#define FOR_EACH_ROLE_START(role,iter) \ -+ role = NULL; \ -+ iter = 0; \ -+ while (iter < acl_role_set.r_size) { \ -+ if (role == NULL) \ -+ role = acl_role_set.r_hash[iter]; \ -+ if (role == NULL) { \ -+ iter++; \ -+ continue; \ -+ } -+ -+#define FOR_EACH_ROLE_END(role,iter) \ -+ role = role->next; \ -+ if (role == NULL) \ -+ iter++; \ -+ } -+ -+#define FOR_EACH_SUBJECT_START(role,subj,iter) \ -+ subj = NULL; \ -+ iter = 0; \ -+ while (iter < role->subj_hash_size) { \ -+ if (subj == NULL) \ -+ subj = role->subj_hash[iter]; \ -+ if (subj == NULL) { \ -+ iter++; \ -+ continue; \ -+ } -+ -+#define FOR_EACH_SUBJECT_END(subj,iter) \ -+ subj = subj->next; \ -+ if (subj == NULL) \ -+ iter++; \ -+ } -+ -+ -+#define FOR_EACH_NESTED_SUBJECT_START(role,subj) \ -+ subj = role->hash->first; \ -+ while (subj != NULL) { -+ -+#define FOR_EACH_NESTED_SUBJECT_END(subj) \ -+ subj = subj->next; \ -+ } -+ -+#endif -+ -diff -urNp linux-2.6.28.8/include/linux/gralloc.h linux-2.6.28.8/include/linux/gralloc.h ---- linux-2.6.28.8/include/linux/gralloc.h 1969-12-31 19:00:00.000000000 -0500 -+++ linux-2.6.28.8/include/linux/gralloc.h 2009-02-21 09:37:49.000000000 -0500 -@@ -0,0 +1,8 @@ -+#ifndef __GRALLOC_H -+#define __GRALLOC_H -+ -+void acl_free_all(void); -+int acl_alloc_stack_init(unsigned long size); -+void *acl_alloc(unsigned long len); -+ -+#endif -diff -urNp linux-2.6.28.8/include/linux/grdefs.h linux-2.6.28.8/include/linux/grdefs.h ---- linux-2.6.28.8/include/linux/grdefs.h 1969-12-31 19:00:00.000000000 -0500 -+++ linux-2.6.28.8/include/linux/grdefs.h 2009-02-21 09:37:49.000000000 -0500 -@@ -0,0 +1,131 @@ -+#ifndef GRDEFS_H -+#define GRDEFS_H -+ -+/* Begin grsecurity status declarations */ -+ -+enum { -+ GR_READY = 0x01, -+ GR_STATUS_INIT = 0x00 // disabled state -+}; -+ -+/* Begin ACL declarations */ -+ -+/* Role flags */ -+ -+enum { -+ GR_ROLE_USER = 0x0001, -+ GR_ROLE_GROUP = 0x0002, -+ GR_ROLE_DEFAULT = 0x0004, -+ GR_ROLE_SPECIAL = 0x0008, -+ GR_ROLE_AUTH = 0x0010, -+ GR_ROLE_NOPW = 0x0020, -+ GR_ROLE_GOD = 0x0040, -+ GR_ROLE_LEARN = 0x0080, -+ GR_ROLE_TPE = 0x0100, -+ GR_ROLE_DOMAIN = 0x0200, -+ GR_ROLE_PAM = 0x0400 -+}; -+ -+/* ACL Subject and Object mode flags */ -+enum { -+ GR_DELETED = 0x80000000 -+}; -+ -+/* ACL Object-only mode flags */ -+enum { -+ GR_READ = 0x00000001, -+ GR_APPEND = 0x00000002, -+ GR_WRITE = 0x00000004, -+ GR_EXEC = 0x00000008, -+ GR_FIND = 0x00000010, -+ GR_INHERIT = 0x00000020, -+ GR_SETID = 0x00000040, -+ GR_CREATE = 0x00000080, -+ GR_DELETE = 0x00000100, -+ GR_LINK = 0x00000200, -+ GR_AUDIT_READ = 0x00000400, -+ GR_AUDIT_APPEND = 0x00000800, -+ GR_AUDIT_WRITE = 0x00001000, -+ GR_AUDIT_EXEC = 0x00002000, -+ GR_AUDIT_FIND = 0x00004000, -+ GR_AUDIT_INHERIT= 0x00008000, -+ GR_AUDIT_SETID = 0x00010000, -+ GR_AUDIT_CREATE = 0x00020000, -+ GR_AUDIT_DELETE = 0x00040000, -+ GR_AUDIT_LINK = 0x00080000, -+ GR_PTRACERD = 0x00100000, -+ GR_NOPTRACE = 0x00200000, -+ GR_SUPPRESS = 0x00400000, -+ GR_NOLEARN = 0x00800000 -+}; -+ -+#define GR_AUDITS (GR_AUDIT_READ | GR_AUDIT_WRITE | GR_AUDIT_APPEND | GR_AUDIT_EXEC | \ -+ GR_AUDIT_FIND | GR_AUDIT_INHERIT | GR_AUDIT_SETID | \ -+ GR_AUDIT_CREATE | GR_AUDIT_DELETE | GR_AUDIT_LINK) -+ -+/* ACL subject-only mode flags */ -+enum { -+ GR_KILL = 0x00000001, -+ GR_VIEW = 0x00000002, -+ GR_PROTECTED = 0x00000004, -+ GR_LEARN = 0x00000008, -+ GR_OVERRIDE = 0x00000010, -+ /* just a placeholder, this mode is only used in userspace */ -+ GR_DUMMY = 0x00000020, -+ GR_PROTSHM = 0x00000040, -+ GR_KILLPROC = 0x00000080, -+ GR_KILLIPPROC = 0x00000100, -+ /* just a placeholder, this mode is only used in userspace */ -+ GR_NOTROJAN = 0x00000200, -+ GR_PROTPROCFD = 0x00000400, -+ GR_PROCACCT = 0x00000800, -+ GR_RELAXPTRACE = 0x00001000, -+ GR_NESTED = 0x00002000, -+ GR_INHERITLEARN = 0x00004000, -+ GR_PROCFIND = 0x00008000, -+ GR_POVERRIDE = 0x00010000, -+ GR_KERNELAUTH = 0x00020000, -+}; -+ -+enum { -+ GR_PAX_ENABLE_SEGMEXEC = 0x0001, -+ GR_PAX_ENABLE_PAGEEXEC = 0x0002, -+ GR_PAX_ENABLE_MPROTECT = 0x0004, -+ GR_PAX_ENABLE_RANDMMAP = 0x0008, -+ GR_PAX_ENABLE_EMUTRAMP = 0x0010, -+ GR_PAX_DISABLE_SEGMEXEC = 0x0100, -+ GR_PAX_DISABLE_PAGEEXEC = 0x0200, -+ GR_PAX_DISABLE_MPROTECT = 0x0400, -+ GR_PAX_DISABLE_RANDMMAP = 0x0800, -+ GR_PAX_DISABLE_EMUTRAMP = 0x1000, -+}; -+ -+enum { -+ GR_ID_USER = 0x01, -+ GR_ID_GROUP = 0x02, -+}; -+ -+enum { -+ GR_ID_ALLOW = 0x01, -+ GR_ID_DENY = 0x02, -+}; -+ -+#define GR_CRASH_RES 11 -+#define GR_UIDTABLE_MAX 500 -+ -+/* begin resource learning section */ -+enum { -+ GR_RLIM_CPU_BUMP = 60, -+ GR_RLIM_FSIZE_BUMP = 50000, -+ GR_RLIM_DATA_BUMP = 10000, -+ GR_RLIM_STACK_BUMP = 1000, -+ GR_RLIM_CORE_BUMP = 10000, -+ GR_RLIM_RSS_BUMP = 500000, -+ GR_RLIM_NPROC_BUMP = 1, -+ GR_RLIM_NOFILE_BUMP = 5, -+ GR_RLIM_MEMLOCK_BUMP = 50000, -+ GR_RLIM_AS_BUMP = 500000, -+ GR_RLIM_LOCKS_BUMP = 2 -+}; -+ -+#endif -diff -urNp linux-2.6.28.8/include/linux/grinternal.h linux-2.6.28.8/include/linux/grinternal.h ---- linux-2.6.28.8/include/linux/grinternal.h 1969-12-31 19:00:00.000000000 -0500 -+++ linux-2.6.28.8/include/linux/grinternal.h 2009-02-21 09:37:49.000000000 -0500 -@@ -0,0 +1,210 @@ -+#ifndef __GRINTERNAL_H -+#define __GRINTERNAL_H -+ -+#ifdef CONFIG_GRKERNSEC -+ -+#include <linux/fs.h> -+#include <linux/gracl.h> -+#include <linux/grdefs.h> -+#include <linux/grmsg.h> -+ -+void gr_add_learn_entry(const char *fmt, ...); -+__u32 gr_search_file(const struct dentry *dentry, const __u32 mode, -+ const struct vfsmount *mnt); -+__u32 gr_check_create(const struct dentry *new_dentry, -+ const struct dentry *parent, -+ const struct vfsmount *mnt, const __u32 mode); -+int gr_check_protected_task(const struct task_struct *task); -+__u32 to_gr_audit(const __u32 reqmode); -+int gr_set_acls(const int type); -+ -+int gr_acl_is_enabled(void); -+char gr_roletype_to_char(void); -+ -+void gr_handle_alertkill(struct task_struct *task); -+char *gr_to_filename(const struct dentry *dentry, -+ const struct vfsmount *mnt); -+char *gr_to_filename1(const struct dentry *dentry, -+ const struct vfsmount *mnt); -+char *gr_to_filename2(const struct dentry *dentry, -+ const struct vfsmount *mnt); -+char *gr_to_filename3(const struct dentry *dentry, -+ const struct vfsmount *mnt); -+ -+extern int grsec_enable_link; -+extern int grsec_enable_fifo; -+extern int grsec_enable_execve; -+extern int grsec_enable_shm; -+extern int grsec_enable_execlog; -+extern int grsec_enable_signal; -+extern int grsec_enable_forkfail; -+extern int grsec_enable_time; -+extern int grsec_enable_chroot_shmat; -+extern int grsec_enable_chroot_findtask; -+extern int grsec_enable_chroot_mount; -+extern int grsec_enable_chroot_double; -+extern int grsec_enable_chroot_pivot; -+extern int grsec_enable_chroot_chdir; -+extern int grsec_enable_chroot_chmod; -+extern int grsec_enable_chroot_mknod; -+extern int grsec_enable_chroot_fchdir; -+extern int grsec_enable_chroot_nice; -+extern int grsec_enable_chroot_execlog; -+extern int grsec_enable_chroot_caps; -+extern int grsec_enable_chroot_sysctl; -+extern int grsec_enable_chroot_unix; -+extern int grsec_enable_tpe; -+extern int grsec_tpe_gid; -+extern int grsec_enable_tpe_all; -+extern int grsec_enable_sidcaps; -+extern int grsec_enable_socket_all; -+extern int grsec_socket_all_gid; -+extern int grsec_enable_socket_client; -+extern int grsec_socket_client_gid; -+extern int grsec_enable_socket_server; -+extern int grsec_socket_server_gid; -+extern int grsec_audit_gid; -+extern int grsec_enable_group; -+extern int grsec_enable_audit_ipc; -+extern int grsec_enable_audit_textrel; -+extern int grsec_enable_mount; -+extern int grsec_enable_chdir; -+extern int grsec_resource_logging; -+extern int grsec_lock; -+ -+extern spinlock_t grsec_alert_lock; -+extern unsigned long grsec_alert_wtime; -+extern unsigned long grsec_alert_fyet; -+ -+extern spinlock_t grsec_audit_lock; -+ -+extern rwlock_t grsec_exec_file_lock; -+ -+#define gr_task_fullpath(tsk) (tsk->exec_file ? \ -+ gr_to_filename2(tsk->exec_file->f_path.dentry, \ -+ tsk->exec_file->f_vfsmnt) : "/") -+ -+#define gr_parent_task_fullpath(tsk) (tsk->parent->exec_file ? \ -+ gr_to_filename3(tsk->parent->exec_file->f_path.dentry, \ -+ tsk->parent->exec_file->f_vfsmnt) : "/") -+ -+#define gr_task_fullpath0(tsk) (tsk->exec_file ? \ -+ gr_to_filename(tsk->exec_file->f_path.dentry, \ -+ tsk->exec_file->f_vfsmnt) : "/") -+ -+#define gr_parent_task_fullpath0(tsk) (tsk->parent->exec_file ? \ -+ gr_to_filename1(tsk->parent->exec_file->f_path.dentry, \ -+ tsk->parent->exec_file->f_vfsmnt) : "/") -+ -+#define proc_is_chrooted(tsk_a) ((tsk_a->pid > 1) && (tsk_a->fs != NULL) && \ -+ ((tsk_a->fs->root.dentry->d_inode->i_sb->s_dev != \ -+ tsk_a->nsproxy->pid_ns->child_reaper->fs->root.dentry->d_inode->i_sb->s_dev) || \ -+ (tsk_a->fs->root.dentry->d_inode->i_ino != \ -+ tsk_a->nsproxy->pid_ns->child_reaper->fs->root.dentry->d_inode->i_ino))) -+ -+#define have_same_root(tsk_a,tsk_b) ((tsk_a->fs != NULL) && (tsk_b->fs != NULL) && \ -+ (tsk_a->fs->root.dentry->d_inode->i_sb->s_dev == \ -+ tsk_b->fs->root.dentry->d_inode->i_sb->s_dev) && \ -+ (tsk_a->fs->root.dentry->d_inode->i_ino == \ -+ tsk_b->fs->root.dentry->d_inode->i_ino)) -+ -+#define DEFAULTSECARGS(task) gr_task_fullpath(task), task->comm, \ -+ task->pid, task->uid, \ -+ task->euid, task->gid, task->egid, \ -+ gr_parent_task_fullpath(task), \ -+ task->parent->comm, task->parent->pid, \ -+ task->parent->uid, task->parent->euid, \ -+ task->parent->gid, task->parent->egid -+ -+#define GR_CHROOT_CAPS {{ \ -+ CAP_TO_MASK(CAP_LINUX_IMMUTABLE) | CAP_TO_MASK(CAP_NET_ADMIN) | \ -+ CAP_TO_MASK(CAP_SYS_MODULE) | CAP_TO_MASK(CAP_SYS_RAWIO) | \ -+ CAP_TO_MASK(CAP_SYS_PACCT) | CAP_TO_MASK(CAP_SYS_ADMIN) | \ -+ CAP_TO_MASK(CAP_SYS_BOOT) | CAP_TO_MASK(CAP_SYS_TIME) | \ -+ CAP_TO_MASK(CAP_NET_RAW) | CAP_TO_MASK(CAP_SYS_TTY_CONFIG) | \ -+ CAP_TO_MASK(CAP_IPC_OWNER) , 0 }} -+ -+#define security_learn(normal_msg,args...) \ -+({ \ -+ read_lock(&grsec_exec_file_lock); \ -+ gr_add_learn_entry(normal_msg "\n", ## args); \ -+ read_unlock(&grsec_exec_file_lock); \ -+}) -+ -+enum { -+ GR_DO_AUDIT, -+ GR_DONT_AUDIT, -+ GR_DONT_AUDIT_GOOD -+}; -+ -+enum { -+ GR_TTYSNIFF, -+ GR_RBAC, -+ GR_RBAC_STR, -+ GR_STR_RBAC, -+ GR_RBAC_MODE2, -+ GR_RBAC_MODE3, -+ GR_FILENAME, -+ GR_SYSCTL_HIDDEN, -+ GR_NOARGS, -+ GR_ONE_INT, -+ GR_ONE_INT_TWO_STR, -+ GR_ONE_STR, -+ GR_STR_INT, -+ GR_TWO_INT, -+ GR_THREE_INT, -+ GR_FIVE_INT_TWO_STR, -+ GR_TWO_STR, -+ GR_THREE_STR, -+ GR_FOUR_STR, -+ GR_STR_FILENAME, -+ GR_FILENAME_STR, -+ GR_FILENAME_TWO_INT, -+ GR_FILENAME_TWO_INT_STR, -+ GR_TEXTREL, -+ GR_PTRACE, -+ GR_RESOURCE, -+ GR_CAP, -+ GR_SIG, -+ GR_CRASH1, -+ GR_CRASH2, -+ GR_PSACCT -+}; -+ -+#define gr_log_hidden_sysctl(audit, msg, str) gr_log_varargs(audit, msg, GR_SYSCTL_HIDDEN, str) -+#define gr_log_ttysniff(audit, msg, task) gr_log_varargs(audit, msg, GR_TTYSNIFF, task) -+#define gr_log_fs_rbac_generic(audit, msg, dentry, mnt) gr_log_varargs(audit, msg, GR_RBAC, dentry, mnt) -+#define gr_log_fs_rbac_str(audit, msg, dentry, mnt, str) gr_log_varargs(audit, msg, GR_RBAC_STR, dentry, mnt, str) -+#define gr_log_fs_str_rbac(audit, msg, str, dentry, mnt) gr_log_varargs(audit, msg, GR_STR_RBAC, str, dentry, mnt) -+#define gr_log_fs_rbac_mode2(audit, msg, dentry, mnt, str1, str2) gr_log_varargs(audit, msg, GR_RBAC_MODE2, dentry, mnt, str1, str2) -+#define gr_log_fs_rbac_mode3(audit, msg, dentry, mnt, str1, str2, str3) gr_log_varargs(audit, msg, GR_RBAC_MODE3, dentry, mnt, str1, str2, str3) -+#define gr_log_fs_generic(audit, msg, dentry, mnt) gr_log_varargs(audit, msg, GR_FILENAME, dentry, mnt) -+#define gr_log_noargs(audit, msg) gr_log_varargs(audit, msg, GR_NOARGS) -+#define gr_log_int(audit, msg, num) gr_log_varargs(audit, msg, GR_ONE_INT, num) -+#define gr_log_int_str2(audit, msg, num, str1, str2) gr_log_varargs(audit, msg, GR_ONE_INT_TWO_STR, num, str1, str2) -+#define gr_log_str(audit, msg, str) gr_log_varargs(audit, msg, GR_ONE_STR, str) -+#define gr_log_str_int(audit, msg, str, num) gr_log_varargs(audit, msg, GR_STR_INT, str, num) -+#define gr_log_int_int(audit, msg, num1, num2) gr_log_varargs(audit, msg, GR_TWO_INT, num1, num2) -+#define gr_log_int3(audit, msg, num1, num2, num3) gr_log_varargs(audit, msg, GR_THREE_INT, num1, num2, num3) -+#define gr_log_int5_str2(audit, msg, num1, num2, str1, str2) gr_log_varargs(audit, msg, GR_FIVE_INT_TWO_STR, num1, num2, str1, str2) -+#define gr_log_str_str(audit, msg, str1, str2) gr_log_varargs(audit, msg, GR_TWO_STR, str1, str2) -+#define gr_log_str3(audit, msg, str1, str2, str3) gr_log_varargs(audit, msg, GR_THREE_STR, str1, str2, str3) -+#define gr_log_str4(audit, msg, str1, str2, str3, str4) gr_log_varargs(audit, msg, GR_FOUR_STR, str1, str2, str3, str4) -+#define gr_log_str_fs(audit, msg, str, dentry, mnt) gr_log_varargs(audit, msg, GR_STR_FILENAME, str, dentry, mnt) -+#define gr_log_fs_str(audit, msg, dentry, mnt, str) gr_log_varargs(audit, msg, GR_FILENAME_STR, dentry, mnt, str) -+#define gr_log_fs_int2(audit, msg, dentry, mnt, num1, num2) gr_log_varargs(audit, msg, GR_FILENAME_TWO_INT, dentry, mnt, num1, num2) -+#define gr_log_fs_int2_str(audit, msg, dentry, mnt, num1, num2, str) gr_log_varargs(audit, msg, GR_FILENAME_TWO_INT_STR, dentry, mnt, num1, num2, str) -+#define gr_log_textrel_ulong_ulong(audit, msg, file, ulong1, ulong2) gr_log_varargs(audit, msg, GR_TEXTREL, file, ulong1, ulong2) -+#define gr_log_ptrace(audit, msg, task) gr_log_varargs(audit, msg, GR_PTRACE, task) -+#define gr_log_res_ulong2_str(audit, msg, task, ulong1, str, ulong2) gr_log_varargs(audit, msg, GR_RESOURCE, task, ulong1, str, ulong2) -+#define gr_log_cap(audit, msg, task, str) gr_log_varargs(audit, msg, GR_CAP, task, str) -+#define gr_log_sig(audit, msg, task, num) gr_log_varargs(audit, msg, GR_SIG, task, num) -+#define gr_log_crash1(audit, msg, task, ulong) gr_log_varargs(audit, msg, GR_CRASH1, task, ulong) -+#define gr_log_crash2(audit, msg, task, ulong1) gr_log_varargs(audit, msg, GR_CRASH2, task, ulong1) -+#define gr_log_procacct(audit, msg, task, num1, num2, num3, num4, num5, num6, num7, num8, num9) gr_log_varargs(audit, msg, GR_PSACCT, task, num1, num2, num3, num4, num5, num6, num7, num8, num9) -+ -+void gr_log_varargs(int audit, const char *msg, int argtypes, ...); -+ -+#endif -+ -+#endif -diff -urNp linux-2.6.28.8/include/linux/grmsg.h linux-2.6.28.8/include/linux/grmsg.h ---- linux-2.6.28.8/include/linux/grmsg.h 1969-12-31 19:00:00.000000000 -0500 -+++ linux-2.6.28.8/include/linux/grmsg.h 2009-02-21 09:37:49.000000000 -0500 -@@ -0,0 +1,108 @@ -+#define DEFAULTSECMSG "%.256s[%.16s:%d] uid/euid:%u/%u gid/egid:%u/%u, parent %.256s[%.16s:%d] uid/euid:%u/%u gid/egid:%u/%u" -+#define GR_ACL_PROCACCT_MSG "%.256s[%.16s:%d] IP:%u.%u.%u.%u TTY:%.64s uid/euid:%u/%u gid/egid:%u/%u run time:[%ud %uh %um %us] cpu time:[%ud %uh %um %us] %s with exit code %ld, parent %.256s[%.16s:%d] IP:%u.%u.%u.%u TTY:%.64s uid/euid:%u/%u gid/egid:%u/%u" -+#define GR_PTRACE_ACL_MSG "denied ptrace of %.950s(%.16s:%d) by " -+#define GR_STOPMOD_MSG "denied modification of module state by " -+#define GR_IOPERM_MSG "denied use of ioperm() by " -+#define GR_IOPL_MSG "denied use of iopl() by " -+#define GR_SHMAT_ACL_MSG "denied attach of shared memory of UID %u, PID %d, ID %u by " -+#define GR_UNIX_CHROOT_MSG "denied connect() to abstract AF_UNIX socket outside of chroot by " -+#define GR_SHMAT_CHROOT_MSG "denied attach of shared memory outside of chroot by " -+#define GR_KMEM_MSG "denied write of /dev/kmem by " -+#define GR_PORT_OPEN_MSG "denied open of /dev/port by " -+#define GR_MEM_WRITE_MSG "denied write of /dev/mem by " -+#define GR_MEM_MMAP_MSG "denied mmap write of /dev/[k]mem by " -+#define GR_SYMLINK_MSG "not following symlink %.950s owned by %d.%d by " -+#define GR_LEARN_AUDIT_MSG "%s\t%u\t%u\t%u\t%.4095s\t%.4095s\t%lu\t%lu\t%.4095s\t%lu\t%u.%u.%u.%u" -+#define GR_ID_LEARN_MSG "%s\t%u\t%u\t%u\t%.4095s\t%.4095s\t%c\t%d\t%d\t%d\t%u.%u.%u.%u" -+#define GR_HIDDEN_ACL_MSG "%s access to hidden file %.950s by " -+#define GR_OPEN_ACL_MSG "%s open of %.950s for%s%s by " -+#define GR_CREATE_ACL_MSG "%s create of %.950s for%s%s by " -+#define GR_FIFO_MSG "denied writing FIFO %.950s of %d.%d by " -+#define GR_MKNOD_CHROOT_MSG "denied mknod of %.950s from chroot by " -+#define GR_MKNOD_ACL_MSG "%s mknod of %.950s by " -+#define GR_UNIXCONNECT_ACL_MSG "%s connect() to the unix domain socket %.950s by " -+#define GR_TTYSNIFF_ACL_MSG "terminal being sniffed by IP:%u.%u.%u.%u %.480s[%.16s:%d], parent %.480s[%.16s:%d] against " -+#define GR_MKDIR_ACL_MSG "%s mkdir of %.950s by " -+#define GR_RMDIR_ACL_MSG "%s rmdir of %.950s by " -+#define GR_UNLINK_ACL_MSG "%s unlink of %.950s by " -+#define GR_SYMLINK_ACL_MSG "%s symlink from %.480s to %.480s by " -+#define GR_HARDLINK_MSG "denied hardlink of %.930s (owned by %d.%d) to %.30s for " -+#define GR_LINK_ACL_MSG "%s link of %.480s to %.480s by " -+#define GR_INHERIT_ACL_MSG "successful inherit of %.480s's ACL for %.480s by " -+#define GR_RENAME_ACL_MSG "%s rename of %.480s to %.480s by " -+#define GR_PTRACE_EXEC_ACL_MSG "denied ptrace of %.950s by " -+#define GR_NPROC_MSG "denied overstep of process limit by " -+#define GR_EXEC_ACL_MSG "%s execution of %.950s by " -+#define GR_EXEC_TPE_MSG "denied untrusted exec of %.950s by " -+#define GR_SEGVSTART_ACL_MSG "possible exploit bruteforcing on " DEFAULTSECMSG " banning uid %u from login for %lu seconds" -+#define GR_SEGVNOSUID_ACL_MSG "possible exploit bruteforcing on " DEFAULTSECMSG " banning execution for %lu seconds" -+#define GR_MOUNT_CHROOT_MSG "denied mount of %.256s as %.930s from chroot by " -+#define GR_PIVOT_CHROOT_MSG "denied pivot_root from chroot by " -+#define GR_TRUNCATE_ACL_MSG "%s truncate of %.950s by " -+#define GR_ATIME_ACL_MSG "%s access time change of %.950s by " -+#define GR_ACCESS_ACL_MSG "%s access of %.950s for%s%s%s by " -+#define GR_CHROOT_CHROOT_MSG "denied double chroot to %.950s by " -+#define GR_FCHMOD_ACL_MSG "%s fchmod of %.950s by " -+#define GR_CHMOD_CHROOT_MSG "denied chmod +s of %.950s by " -+#define GR_CHMOD_ACL_MSG "%s chmod of %.950s by " -+#define GR_CHROOT_FCHDIR_MSG "denied fchdir outside of chroot to %.950s by " -+#define GR_CHOWN_ACL_MSG "%s chown of %.950s by " -+#define GR_WRITLIB_ACL_MSG "denied load of writable library %.950s by " -+#define GR_INITF_ACL_MSG "init_variables() failed %s by " -+#define GR_DISABLED_ACL_MSG "Error loading %s, trying to run kernel with acls disabled. To disable acls at startup use <kernel image name> gracl=off from your boot loader" -+#define GR_DEV_ACL_MSG "/dev/grsec: %d bytes sent %d required, being fed garbaged by " -+#define GR_SHUTS_ACL_MSG "shutdown auth success for " -+#define GR_SHUTF_ACL_MSG "shutdown auth failure for " -+#define GR_SHUTI_ACL_MSG "ignoring shutdown for disabled RBAC system for " -+#define GR_SEGVMODS_ACL_MSG "segvmod auth success for " -+#define GR_SEGVMODF_ACL_MSG "segvmod auth failure for " -+#define GR_SEGVMODI_ACL_MSG "ignoring segvmod for disabled RBAC system for " -+#define GR_ENABLE_ACL_MSG "%s RBAC system loaded by " -+#define GR_ENABLEF_ACL_MSG "unable to load %s for " -+#define GR_RELOADI_ACL_MSG "ignoring reload request for disabled RBAC system" -+#define GR_RELOAD_ACL_MSG "%s RBAC system reloaded by " -+#define GR_RELOADF_ACL_MSG "failed reload of %s for " -+#define GR_SPROLEI_ACL_MSG "ignoring change to special role for disabled RBAC system for " -+#define GR_SPROLES_ACL_MSG "successful change to special role %s (id %d) by " -+#define GR_SPROLEL_ACL_MSG "special role %s (id %d) exited by " -+#define GR_SPROLEF_ACL_MSG "special role %s failure for " -+#define GR_UNSPROLEI_ACL_MSG "ignoring unauth of special role for disabled RBAC system for " -+#define GR_UNSPROLES_ACL_MSG "successful unauth of special role %s (id %d) by " -+#define GR_UNSPROLEF_ACL_MSG "special role unauth of %s failure for " -+#define GR_INVMODE_ACL_MSG "invalid mode %d by " -+#define GR_PRIORITY_CHROOT_MSG "denied priority change of process (%.16s:%d) by " -+#define GR_FAILFORK_MSG "failed fork with errno %d by " -+#define GR_NICE_CHROOT_MSG "denied priority change by " -+#define GR_UNISIGLOG_MSG "signal %d sent to " -+#define GR_DUALSIGLOG_MSG "signal %d sent to " DEFAULTSECMSG " by " -+#define GR_SIG_ACL_MSG "denied send of signal %d to protected task " DEFAULTSECMSG " by " -+#define GR_SYSCTL_MSG "denied modification of grsecurity sysctl value : %.32s by " -+#define GR_SYSCTL_ACL_MSG "%s sysctl of %.950s for%s%s by " -+#define GR_TIME_MSG "time set by " -+#define GR_DEFACL_MSG "fatal: unable to find subject for (%.16s:%d), loaded by " -+#define GR_MMAP_ACL_MSG "%s executable mmap of %.950s by " -+#define GR_MPROTECT_ACL_MSG "%s executable mprotect of %.950s by " -+#define GR_SOCK_MSG "denied socket(%.16s,%.16s,%.16s) by " -+#define GR_SOCK2_MSG "denied socket(%d,%.16s,%.16s) by " -+#define GR_BIND_MSG "denied bind() by " -+#define GR_CONNECT_MSG "denied connect() by " -+#define GR_BIND_ACL_MSG "denied bind() to %u.%u.%u.%u port %u sock type %.16s protocol %.16s by " -+#define GR_CONNECT_ACL_MSG "denied connect() to %u.%u.%u.%u port %u sock type %.16s protocol %.16s by " -+#define GR_IP_LEARN_MSG "%s\t%u\t%u\t%u\t%.4095s\t%.4095s\t%u.%u.%u.%u\t%u\t%u\t%u\t%u\t%u.%u.%u.%u" -+#define GR_EXEC_CHROOT_MSG "exec of %.980s within chroot by process " -+#define GR_CAP_ACL_MSG "use of %s denied for " -+#define GR_USRCHANGE_ACL_MSG "change to uid %u denied for " -+#define GR_GRPCHANGE_ACL_MSG "change to gid %u denied for " -+#define GR_REMOUNT_AUDIT_MSG "remount of %.256s by " -+#define GR_UNMOUNT_AUDIT_MSG "unmount of %.256s by " -+#define GR_MOUNT_AUDIT_MSG "mount of %.256s to %.256s by " -+#define GR_CHDIR_AUDIT_MSG "chdir to %.980s by " -+#define GR_EXEC_AUDIT_MSG "exec of %.930s (%.128s) by " -+#define GR_MSGQ_AUDIT_MSG "message queue created by " -+#define GR_MSGQR_AUDIT_MSG "message queue of uid:%u euid:%u removed by " -+#define GR_SEM_AUDIT_MSG "semaphore created by " -+#define GR_SEMR_AUDIT_MSG "semaphore of uid:%u euid:%u removed by " -+#define GR_SHM_AUDIT_MSG "shared memory of size %d created by " -+#define GR_SHMR_AUDIT_MSG "shared memory of uid:%u euid:%u removed by " -+#define GR_RESOURCE_MSG "denied resource overstep by requesting %lu for %.16s against limit %lu for " -+#define GR_TEXTREL_AUDIT_MSG "text relocation in %s, VMA:0x%08lx 0x%08lx by " -diff -urNp linux-2.6.28.8/include/linux/grsecurity.h linux-2.6.28.8/include/linux/grsecurity.h ---- linux-2.6.28.8/include/linux/grsecurity.h 1969-12-31 19:00:00.000000000 -0500 -+++ linux-2.6.28.8/include/linux/grsecurity.h 2009-02-21 09:37:49.000000000 -0500 -@@ -0,0 +1,200 @@ -+#ifndef GR_SECURITY_H -+#define GR_SECURITY_H -+#include <linux/fs.h> -+#include <linux/binfmts.h> -+#include <linux/gracl.h> -+ -+/* notify of brain-dead configs */ -+#if defined(CONFIG_PAX_NOEXEC) && !defined(CONFIG_PAX_PAGEEXEC) && !defined(CONFIG_PAX_SEGMEXEC) && !defined(CONFIG_PAX_KERNEXEC) -+#error "CONFIG_PAX_NOEXEC enabled, but PAGEEXEC, SEGMEXEC, and KERNEXEC are disabled." -+#endif -+#if defined(CONFIG_PAX_NOEXEC) && !defined(CONFIG_PAX_EI_PAX) && !defined(CONFIG_PAX_PT_PAX_FLAGS) -+#error "CONFIG_PAX_NOEXEC enabled, but neither CONFIG_PAX_EI_PAX nor CONFIG_PAX_PT_PAX_FLAGS are enabled." -+#endif -+#if defined(CONFIG_PAX_ASLR) && (defined(CONFIG_PAX_RANDMMAP) || defined(CONFIG_PAX_RANDUSTACK)) && !defined(CONFIG_PAX_EI_PAX) && !defined(CONFIG_PAX_PT_PAX_FLAGS) -+#error "CONFIG_PAX_ASLR enabled, but neither CONFIG_PAX_EI_PAX nor CONFIG_PAX_PT_PAX_FLAGS are enabled." -+#endif -+#if defined(CONFIG_PAX_ASLR) && !defined(CONFIG_PAX_RANDKSTACK) && !defined(CONFIG_PAX_RANDUSTACK) && !defined(CONFIG_PAX_RANDMMAP) -+#error "CONFIG_PAX_ASLR enabled, but RANDKSTACK, RANDUSTACK, and RANDMMAP are disabled." -+#endif -+#if defined(CONFIG_PAX) && !defined(CONFIG_PAX_NOEXEC) && !defined(CONFIG_PAX_ASLR) -+#error "CONFIG_PAX enabled, but no PaX options are enabled." -+#endif -+ -+void gr_handle_brute_attach(struct task_struct *p); -+void gr_handle_brute_check(void); -+ -+char gr_roletype_to_char(void); -+ -+int gr_check_user_change(int real, int effective, int fs); -+int gr_check_group_change(int real, int effective, int fs); -+ -+void gr_del_task_from_ip_table(struct task_struct *p); -+ -+int gr_pid_is_chrooted(struct task_struct *p); -+int gr_handle_chroot_nice(void); -+int gr_handle_chroot_sysctl(const int op); -+int gr_handle_chroot_setpriority(struct task_struct *p, -+ const int niceval); -+int gr_chroot_fchdir(struct dentry *u_dentry, struct vfsmount *u_mnt); -+int gr_handle_chroot_chroot(const struct dentry *dentry, -+ const struct vfsmount *mnt); -+void gr_handle_chroot_caps(struct task_struct *task); -+void gr_handle_chroot_chdir(struct path *path); -+int gr_handle_chroot_chmod(const struct dentry *dentry, -+ const struct vfsmount *mnt, const int mode); -+int gr_handle_chroot_mknod(const struct dentry *dentry, -+ const struct vfsmount *mnt, const int mode); -+int gr_handle_chroot_mount(const struct dentry *dentry, -+ const struct vfsmount *mnt, -+ const char *dev_name); -+int gr_handle_chroot_pivot(void); -+int gr_handle_chroot_unix(const pid_t pid); -+ -+int gr_handle_rawio(const struct inode *inode); -+int gr_handle_nproc(void); -+ -+void gr_handle_ioperm(void); -+void gr_handle_iopl(void); -+ -+int gr_tpe_allow(const struct file *file); -+ -+int gr_random_pid(void); -+ -+void gr_log_forkfail(const int retval); -+void gr_log_timechange(void); -+void gr_log_signal(const int sig, const struct task_struct *t); -+void gr_log_chdir(const struct dentry *dentry, -+ const struct vfsmount *mnt); -+void gr_log_chroot_exec(const struct dentry *dentry, -+ const struct vfsmount *mnt); -+void gr_handle_exec_args(struct linux_binprm *bprm, char **argv); -+void gr_log_remount(const char *devname, const int retval); -+void gr_log_unmount(const char *devname, const int retval); -+void gr_log_mount(const char *from, const char *to, const int retval); -+void gr_log_msgget(const int ret, const int msgflg); -+void gr_log_msgrm(const uid_t uid, const uid_t cuid); -+void gr_log_semget(const int err, const int semflg); -+void gr_log_semrm(const uid_t uid, const uid_t cuid); -+void gr_log_shmget(const int err, const int shmflg, const size_t size); -+void gr_log_shmrm(const uid_t uid, const uid_t cuid); -+void gr_log_textrel(struct vm_area_struct *vma); -+ -+int gr_handle_follow_link(const struct inode *parent, -+ const struct inode *inode, -+ const struct dentry *dentry, -+ const struct vfsmount *mnt); -+int gr_handle_fifo(const struct dentry *dentry, -+ const struct vfsmount *mnt, -+ const struct dentry *dir, const int flag, -+ const int acc_mode); -+int gr_handle_hardlink(const struct dentry *dentry, -+ const struct vfsmount *mnt, -+ struct inode *inode, -+ const int mode, const char *to); -+ -+int gr_task_is_capable(struct task_struct *task, const int cap); -+int gr_is_capable_nolog(const int cap); -+void gr_learn_resource(const struct task_struct *task, const int limit, -+ const unsigned long wanted, const int gt); -+void gr_copy_label(struct task_struct *tsk); -+void gr_handle_crash(struct task_struct *task, const int sig); -+int gr_handle_signal(const struct task_struct *p, const int sig); -+int gr_check_crash_uid(const uid_t uid); -+int gr_check_protected_task(const struct task_struct *task); -+int gr_acl_handle_mmap(const struct file *file, -+ const unsigned long prot); -+int gr_acl_handle_mprotect(const struct file *file, -+ const unsigned long prot); -+int gr_check_hidden_task(const struct task_struct *tsk); -+__u32 gr_acl_handle_truncate(const struct dentry *dentry, -+ const struct vfsmount *mnt); -+__u32 gr_acl_handle_utime(const struct dentry *dentry, -+ const struct vfsmount *mnt); -+__u32 gr_acl_handle_access(const struct dentry *dentry, -+ const struct vfsmount *mnt, const int fmode); -+__u32 gr_acl_handle_fchmod(const struct dentry *dentry, -+ const struct vfsmount *mnt, mode_t mode); -+__u32 gr_acl_handle_chmod(const struct dentry *dentry, -+ const struct vfsmount *mnt, mode_t mode); -+__u32 gr_acl_handle_chown(const struct dentry *dentry, -+ const struct vfsmount *mnt); -+int gr_handle_ptrace(struct task_struct *task, const long request); -+int gr_handle_proc_ptrace(struct task_struct *task); -+__u32 gr_acl_handle_execve(const struct dentry *dentry, -+ const struct vfsmount *mnt); -+int gr_check_crash_exec(const struct file *filp); -+int gr_acl_is_enabled(void); -+void gr_set_kernel_label(struct task_struct *task); -+void gr_set_role_label(struct task_struct *task, const uid_t uid, -+ const gid_t gid); -+int gr_set_proc_label(const struct dentry *dentry, -+ const struct vfsmount *mnt); -+__u32 gr_acl_handle_hidden_file(const struct dentry *dentry, -+ const struct vfsmount *mnt); -+__u32 gr_acl_handle_open(const struct dentry *dentry, -+ const struct vfsmount *mnt, const int fmode); -+__u32 gr_acl_handle_creat(const struct dentry *dentry, -+ const struct dentry *p_dentry, -+ const struct vfsmount *p_mnt, const int fmode, -+ const int imode); -+void gr_handle_create(const struct dentry *dentry, -+ const struct vfsmount *mnt); -+__u32 gr_acl_handle_mknod(const struct dentry *new_dentry, -+ const struct dentry *parent_dentry, -+ const struct vfsmount *parent_mnt, -+ const int mode); -+__u32 gr_acl_handle_mkdir(const struct dentry *new_dentry, -+ const struct dentry *parent_dentry, -+ const struct vfsmount *parent_mnt); -+__u32 gr_acl_handle_rmdir(const struct dentry *dentry, -+ const struct vfsmount *mnt); -+void gr_handle_delete(const ino_t ino, const dev_t dev); -+__u32 gr_acl_handle_unlink(const struct dentry *dentry, -+ const struct vfsmount *mnt); -+__u32 gr_acl_handle_symlink(const struct dentry *new_dentry, -+ const struct dentry *parent_dentry, -+ const struct vfsmount *parent_mnt, -+ const char *from); -+__u32 gr_acl_handle_link(const struct dentry *new_dentry, -+ const struct dentry *parent_dentry, -+ const struct vfsmount *parent_mnt, -+ const struct dentry *old_dentry, -+ const struct vfsmount *old_mnt, const char *to); -+int gr_acl_handle_rename(struct dentry *new_dentry, -+ struct dentry *parent_dentry, -+ const struct vfsmount *parent_mnt, -+ struct dentry *old_dentry, -+ struct inode *old_parent_inode, -+ struct vfsmount *old_mnt, const char *newname); -+void gr_handle_rename(struct inode *old_dir, struct inode *new_dir, -+ struct dentry *old_dentry, -+ struct dentry *new_dentry, -+ struct vfsmount *mnt, const __u8 replace); -+__u32 gr_check_link(const struct dentry *new_dentry, -+ const struct dentry *parent_dentry, -+ const struct vfsmount *parent_mnt, -+ const struct dentry *old_dentry, -+ const struct vfsmount *old_mnt); -+int gr_acl_handle_filldir(const struct file *file, const char *name, -+ const unsigned int namelen, const ino_t ino); -+ -+__u32 gr_acl_handle_unix(const struct dentry *dentry, -+ const struct vfsmount *mnt); -+void gr_acl_handle_exit(void); -+void gr_acl_handle_psacct(struct task_struct *task, const long code); -+int gr_acl_handle_procpidmem(const struct task_struct *task); -+ -+#ifdef CONFIG_GRKERNSEC -+void gr_handle_mem_write(void); -+void gr_handle_kmem_write(void); -+void gr_handle_open_port(void); -+int gr_handle_mem_mmap(const unsigned long offset, -+ struct vm_area_struct *vma); -+ -+extern int grsec_enable_dmesg; -+extern int grsec_enable_randsrc; -+extern int grsec_enable_shm; -+#endif -+ -+#endif -diff -urNp linux-2.6.28.8/include/linux/highmem.h linux-2.6.28.8/include/linux/highmem.h ---- linux-2.6.28.8/include/linux/highmem.h 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/include/linux/highmem.h 2009-03-07 10:35:39.000000000 -0500 -@@ -124,6 +124,18 @@ static inline void clear_highpage(struct - kunmap_atomic(kaddr, KM_USER0); - } - -+static inline void sanitize_highpage(struct page *page) -+{ -+ void *kaddr; -+ unsigned long flags; -+ -+ local_irq_save(flags); -+ kaddr = kmap_atomic(page, KM_CLEARPAGE); -+ clear_page(kaddr); -+ kunmap_atomic(kaddr, KM_CLEARPAGE); -+ local_irq_restore(flags); -+} -+ - static inline void zero_user_segments(struct page *page, - unsigned start1, unsigned end1, - unsigned start2, unsigned end2) -diff -urNp linux-2.6.28.8/include/linux/jbd2.h linux-2.6.28.8/include/linux/jbd2.h ---- linux-2.6.28.8/include/linux/jbd2.h 2009-03-07 10:24:49.000000000 -0500 -+++ linux-2.6.28.8/include/linux/jbd2.h 2009-03-07 10:29:51.000000000 -0500 -@@ -66,7 +66,7 @@ extern u8 jbd2_journal_enable_debug; - } \ - } while (0) - #else --#define jbd_debug(f, a...) /**/ -+#define jbd_debug(f, a...) do {} while (0) - #endif - - static inline void *jbd2_alloc(size_t size, gfp_t flags) -diff -urNp linux-2.6.28.8/include/linux/jbd.h linux-2.6.28.8/include/linux/jbd.h ---- linux-2.6.28.8/include/linux/jbd.h 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/include/linux/jbd.h 2009-02-21 09:37:49.000000000 -0500 -@@ -66,7 +66,7 @@ extern u8 journal_enable_debug; - } \ - } while (0) - #else --#define jbd_debug(f, a...) /**/ -+#define jbd_debug(f, a...) do {} while (0) - #endif - - static inline void *jbd_alloc(size_t size, gfp_t flags) -diff -urNp linux-2.6.28.8/include/linux/kvm_host.h linux-2.6.28.8/include/linux/kvm_host.h ---- linux-2.6.28.8/include/linux/kvm_host.h 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/include/linux/kvm_host.h 2009-02-21 09:37:49.000000000 -0500 -@@ -150,7 +150,7 @@ void kvm_vcpu_uninit(struct kvm_vcpu *vc - void vcpu_load(struct kvm_vcpu *vcpu); - void vcpu_put(struct kvm_vcpu *vcpu); - --int kvm_init(void *opaque, unsigned int vcpu_size, -+int kvm_init(const void *opaque, unsigned int vcpu_size, - struct module *module); - void kvm_exit(void); - -@@ -258,7 +258,7 @@ int kvm_arch_vcpu_ioctl_debug_guest(stru - struct kvm_debug_guest *dbg); - int kvm_arch_vcpu_ioctl_run(struct kvm_vcpu *vcpu, struct kvm_run *kvm_run); - --int kvm_arch_init(void *opaque); -+int kvm_arch_init(const void *opaque); - void kvm_arch_exit(void); - - int kvm_arch_vcpu_init(struct kvm_vcpu *vcpu); -diff -urNp linux-2.6.28.8/include/linux/libata.h linux-2.6.28.8/include/linux/libata.h ---- linux-2.6.28.8/include/linux/libata.h 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/include/linux/libata.h 2009-02-21 09:37:49.000000000 -0500 -@@ -64,11 +64,11 @@ - #ifdef ATA_VERBOSE_DEBUG - #define VPRINTK(fmt, args...) printk(KERN_ERR "%s: " fmt, __func__, ## args) - #else --#define VPRINTK(fmt, args...) -+#define VPRINTK(fmt, args...) do {} while (0) - #endif /* ATA_VERBOSE_DEBUG */ - #else --#define DPRINTK(fmt, args...) --#define VPRINTK(fmt, args...) -+#define DPRINTK(fmt, args...) do {} while (0) -+#define VPRINTK(fmt, args...) do {} while (0) - #endif /* ATA_DEBUG */ - - #define BPRINTK(fmt, args...) if (ap->flags & ATA_FLAG_DEBUGMSG) printk(KERN_ERR "%s: " fmt, __func__, ## args) -diff -urNp linux-2.6.28.8/include/linux/mm.h linux-2.6.28.8/include/linux/mm.h ---- linux-2.6.28.8/include/linux/mm.h 2009-03-07 10:24:49.000000000 -0500 -+++ linux-2.6.28.8/include/linux/mm.h 2009-03-07 10:29:51.000000000 -0500 -@@ -39,6 +39,7 @@ extern unsigned long mmap_min_addr; - #include <asm/page.h> - #include <asm/pgtable.h> - #include <asm/processor.h> -+#include <asm/mman.h> - - #define nth_page(page,n) pfn_to_page(page_to_pfn((page)) + (n)) - -@@ -115,6 +116,10 @@ extern unsigned int kobjsize(const void - #define VM_MIXEDMAP 0x10000000 /* Can contain "struct page" and pure PFN pages */ - #define VM_SAO 0x20000000 /* Strong Access Ordering (powerpc) */ - -+#ifdef CONFIG_PAX_PAGEEXEC -+#define VM_PAGEEXEC 0x40000000 /* vma->vm_page_prot needs special handling */ -+#endif -+ - #ifndef VM_STACK_DEFAULT_FLAGS /* arch can override this */ - #define VM_STACK_DEFAULT_FLAGS VM_DATA_DEFAULT_FLAGS - #endif -@@ -873,6 +878,8 @@ struct shrinker { - extern void register_shrinker(struct shrinker *); - extern void unregister_shrinker(struct shrinker *); - -+pgprot_t vm_get_page_prot(unsigned long vm_flags); -+ - int vma_wants_writenotify(struct vm_area_struct *vma); - - extern pte_t *get_locked_pte(struct mm_struct *mm, unsigned long addr, spinlock_t **ptl); -@@ -1141,6 +1148,7 @@ out: - } - - extern int do_munmap(struct mm_struct *, unsigned long, size_t); -+extern int __do_munmap(struct mm_struct *, unsigned long, size_t); - - extern unsigned long do_brk(unsigned long, unsigned long); - -@@ -1193,6 +1201,10 @@ extern struct vm_area_struct * find_vma( - extern struct vm_area_struct * find_vma_prev(struct mm_struct * mm, unsigned long addr, - struct vm_area_struct **pprev); - -+extern struct vm_area_struct *pax_find_mirror_vma(struct vm_area_struct *vma); -+extern void pax_mirror_vma(struct vm_area_struct *vma_m, struct vm_area_struct *vma); -+extern void pax_mirror_file_pte(struct vm_area_struct *vma, unsigned long address, struct page *page_m, spinlock_t *ptl); -+ - /* Look up the first VMA which intersects the interval start_addr..end_addr-1, - NULL if none. Assume start_addr < end_addr. */ - static inline struct vm_area_struct * find_vma_intersection(struct mm_struct * mm, unsigned long start_addr, unsigned long end_addr) -@@ -1209,7 +1221,6 @@ static inline unsigned long vma_pages(st - return (vma->vm_end - vma->vm_start) >> PAGE_SHIFT; - } - --pgprot_t vm_get_page_prot(unsigned long vm_flags); - struct vm_area_struct *find_extend_vma(struct mm_struct *, unsigned long addr); - int remap_pfn_range(struct vm_area_struct *, unsigned long addr, - unsigned long pfn, unsigned long size, pgprot_t); -@@ -1298,5 +1309,11 @@ int vmemmap_populate_basepages(struct pa - int vmemmap_populate(struct page *start_page, unsigned long pages, int node); - void vmemmap_populate_print_last(void); - -+#ifdef CONFIG_ARCH_TRACK_EXEC_LIMIT -+extern void track_exec_limit(struct mm_struct *mm, unsigned long start, unsigned long end, unsigned long prot); -+#else -+static inline void track_exec_limit(struct mm_struct *mm, unsigned long start, unsigned long end, unsigned long prot) {} -+#endif -+ - #endif /* __KERNEL__ */ - #endif /* _LINUX_MM_H */ -diff -urNp linux-2.6.28.8/include/linux/mm_types.h linux-2.6.28.8/include/linux/mm_types.h ---- linux-2.6.28.8/include/linux/mm_types.h 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/include/linux/mm_types.h 2009-02-21 09:37:49.000000000 -0500 -@@ -157,6 +157,8 @@ struct vm_area_struct { - #ifdef CONFIG_NUMA - struct mempolicy *vm_policy; /* NUMA policy for the VMA */ - #endif -+ -+ struct vm_area_struct *vm_mirror;/* PaX: mirror vma or NULL */ - }; - - struct core_thread { -@@ -256,6 +258,24 @@ struct mm_struct { - #ifdef CONFIG_MMU_NOTIFIER - struct mmu_notifier_mm *mmu_notifier_mm; - #endif -+ -+#if defined(CONFIG_PAX_EI_PAX) || defined(CONFIG_PAX_PT_PAX_FLAGS) || defined(CONFIG_PAX_NOEXEC) || defined(CONFIG_PAX_ASLR) -+ unsigned long pax_flags; -+#endif -+ -+#ifdef CONFIG_PAX_DLRESOLVE -+ unsigned long call_dl_resolve; -+#endif -+ -+#if defined(CONFIG_PPC32) && defined(CONFIG_PAX_EMUSIGRT) -+ unsigned long call_syscall; -+#endif -+ -+#ifdef CONFIG_PAX_ASLR -+ unsigned long delta_mmap; /* randomized offset */ -+ unsigned long delta_stack; /* randomized offset */ -+#endif -+ - }; - - #endif /* _LINUX_MM_TYPES_H */ -diff -urNp linux-2.6.28.8/include/linux/module.h linux-2.6.28.8/include/linux/module.h ---- linux-2.6.28.8/include/linux/module.h 2009-02-07 16:10:45.000000000 -0500 -+++ linux-2.6.28.8/include/linux/module.h 2009-02-21 09:37:49.000000000 -0500 -@@ -283,16 +283,16 @@ struct module - int (*init)(void); - - /* If this is non-NULL, vfree after init() returns */ -- void *module_init; -+ void *module_init_rx, *module_init_rw; - - /* Here is the actual code + data, vfree'd on unload. */ -- void *module_core; -+ void *module_core_rx, *module_core_rw; - - /* Here are the sizes of the init and core sections */ -- unsigned int init_size, core_size; -+ unsigned int init_size_rw, core_size_rw; - - /* The size of the executable code in each section. */ -- unsigned int init_text_size, core_text_size; -+ unsigned int init_size_rx, core_size_rx; - - /* The handle returned from unwind_add_table. */ - void *unwind_info; -diff -urNp linux-2.6.28.8/include/linux/moduleloader.h linux-2.6.28.8/include/linux/moduleloader.h ---- linux-2.6.28.8/include/linux/moduleloader.h 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/include/linux/moduleloader.h 2009-02-21 09:37:49.000000000 -0500 -@@ -17,9 +17,21 @@ int module_frob_arch_sections(Elf_Ehdr * - sections. Returns NULL on failure. */ - void *module_alloc(unsigned long size); - -+#ifdef CONFIG_PAX_KERNEXEC -+void *module_alloc_exec(unsigned long size); -+#else -+#define module_alloc_exec(x) module_alloc(x) -+#endif -+ - /* Free memory returned from module_alloc. */ - void module_free(struct module *mod, void *module_region); - -+#ifdef CONFIG_PAX_KERNEXEC -+void module_free_exec(struct module *mod, void *module_region); -+#else -+#define module_free_exec(x, y) module_free(x, y) -+#endif -+ - /* Apply the given relocation to the (simplified) ELF. Return -error - or 0. */ - int apply_relocate(Elf_Shdr *sechdrs, -diff -urNp linux-2.6.28.8/include/linux/namei.h linux-2.6.28.8/include/linux/namei.h ---- linux-2.6.28.8/include/linux/namei.h 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/include/linux/namei.h 2009-02-21 09:37:49.000000000 -0500 -@@ -21,7 +21,7 @@ struct nameidata { - unsigned int flags; - int last_type; - unsigned depth; -- char *saved_names[MAX_NESTED_LINKS + 1]; -+ const char *saved_names[MAX_NESTED_LINKS + 1]; - - /* Intent data */ - union { -@@ -84,12 +84,12 @@ extern int follow_up(struct vfsmount **, - extern struct dentry *lock_rename(struct dentry *, struct dentry *); - extern void unlock_rename(struct dentry *, struct dentry *); - --static inline void nd_set_link(struct nameidata *nd, char *path) -+static inline void nd_set_link(struct nameidata *nd, const char *path) - { - nd->saved_names[nd->depth] = path; - } - --static inline char *nd_get_link(struct nameidata *nd) -+static inline const char *nd_get_link(struct nameidata *nd) - { - return nd->saved_names[nd->depth]; - } -diff -urNp linux-2.6.28.8/include/linux/nodemask.h linux-2.6.28.8/include/linux/nodemask.h ---- linux-2.6.28.8/include/linux/nodemask.h 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/include/linux/nodemask.h 2009-02-21 09:37:49.000000000 -0500 -@@ -442,11 +442,11 @@ static inline int num_node_state(enum no - - #define any_online_node(mask) \ - ({ \ -- int node; \ -- for_each_node_mask(node, (mask)) \ -- if (node_online(node)) \ -+ int __node; \ -+ for_each_node_mask(__node, (mask)) \ -+ if (node_online(__node)) \ - break; \ -- node; \ -+ __node; \ - }) - - #define num_online_nodes() num_node_state(N_ONLINE) -diff -urNp linux-2.6.28.8/include/linux/percpu.h linux-2.6.28.8/include/linux/percpu.h ---- linux-2.6.28.8/include/linux/percpu.h 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/include/linux/percpu.h 2009-02-21 09:37:49.000000000 -0500 -@@ -50,7 +50,7 @@ - #endif - - #define PERCPU_ENOUGH_ROOM \ -- (__per_cpu_end - __per_cpu_start + PERCPU_MODULE_RESERVE) -+ ((unsigned long)(__per_cpu_end - __per_cpu_start + PERCPU_MODULE_RESERVE)) - #endif /* PERCPU_ENOUGH_ROOM */ - - /* -diff -urNp linux-2.6.28.8/include/linux/poison.h linux-2.6.28.8/include/linux/poison.h ---- linux-2.6.28.8/include/linux/poison.h 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/include/linux/poison.h 2009-02-21 09:37:49.000000000 -0500 -@@ -7,8 +7,8 @@ - * under normal circumstances, used to verify that nobody uses - * non-initialized list entries. - */ --#define LIST_POISON1 ((void *) 0x00100100) --#define LIST_POISON2 ((void *) 0x00200200) -+#define LIST_POISON1 ((void *) 0xFF1001FFFF1001FFULL) -+#define LIST_POISON2 ((void *) 0xFF2002FFFF2002FFULL) - - /********** include/linux/timer.h **********/ - /* -diff -urNp linux-2.6.28.8/include/linux/proc_fs.h linux-2.6.28.8/include/linux/proc_fs.h ---- linux-2.6.28.8/include/linux/proc_fs.h 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/include/linux/proc_fs.h 2009-02-21 09:37:49.000000000 -0500 -@@ -174,6 +174,19 @@ static inline struct proc_dir_entry *pro - return proc_create_data(name, mode, parent, proc_fops, NULL); - } - -+static inline struct proc_dir_entry *proc_create_grsec(const char *name, mode_t mode, -+ struct proc_dir_entry *parent, const struct file_operations *proc_fops) -+{ -+#ifdef CONFIG_GRKERNSEC_PROC_USER -+ return proc_create_data(name, S_IRUSR, parent, proc_fops, NULL); -+#elif defined(CONFIG_GRKERNSEC_PROC_USERGROUP) -+ return proc_create_data(name, S_IRUSR | S_IRGRP, parent, proc_fops, NULL); -+#else -+ return proc_create_data(name, mode, parent, proc_fops, NULL); -+#endif -+} -+ -+ - static inline struct proc_dir_entry *create_proc_read_entry(const char *name, - mode_t mode, struct proc_dir_entry *base, - read_proc_t *read_proc, void * data) -diff -urNp linux-2.6.28.8/include/linux/random.h linux-2.6.28.8/include/linux/random.h ---- linux-2.6.28.8/include/linux/random.h 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/include/linux/random.h 2009-02-21 09:37:49.000000000 -0500 -@@ -72,6 +72,11 @@ unsigned long randomize_range(unsigned l - u32 random32(void); - void srandom32(u32 seed); - -+static inline unsigned long pax_get_random_long(void) -+{ -+ return random32() + (sizeof(long) > 4 ? (unsigned long)random32() << 32 : 0); -+} -+ - #endif /* __KERNEL___ */ - - #endif /* _LINUX_RANDOM_H */ -diff -urNp linux-2.6.28.8/include/linux/sched.h linux-2.6.28.8/include/linux/sched.h ---- linux-2.6.28.8/include/linux/sched.h 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/include/linux/sched.h 2009-02-21 09:37:49.000000000 -0500 -@@ -96,6 +96,7 @@ struct exec_domain; - struct futex_pi_state; - struct robust_list_head; - struct bio; -+struct linux_binprm; - - /* - * List of flags we want to share for kernel threads, -@@ -588,6 +589,15 @@ struct signal_struct { - unsigned audit_tty; - struct tty_audit_buf *tty_audit_buf; - #endif -+ -+#ifdef CONFIG_GRKERNSEC -+ u32 curr_ip; -+ u32 gr_saddr; -+ u32 gr_daddr; -+ u16 gr_sport; -+ u16 gr_dport; -+ u8 used_accept:1; -+#endif - }; - - /* Context switch must be unlocked if interrupts are to be enabled */ -@@ -1073,7 +1083,7 @@ struct sched_rt_entity { - - struct task_struct { - volatile long state; /* -1 unrunnable, 0 runnable, >0 stopped */ -- void *stack; -+ struct thread_info *stack; - atomic_t usage; - unsigned int flags; /* per process flags, defined below */ - unsigned int ptrace; -@@ -1138,10 +1148,9 @@ struct task_struct { - pid_t pid; - pid_t tgid; - --#ifdef CONFIG_CC_STACKPROTECTOR - /* Canary value for the -fstack-protector gcc feature */ - unsigned long stack_canary; --#endif -+ - /* - * pointers to (original) parent process, youngest child, younger sibling, - * older sibling, respectively. (p->father can be replaced with -@@ -1169,8 +1178,8 @@ struct task_struct { - struct list_head thread_group; - - struct completion *vfork_done; /* for vfork() */ -- int __user *set_child_tid; /* CLONE_CHILD_SETTID */ -- int __user *clear_child_tid; /* CLONE_CHILD_CLEARTID */ -+ pid_t __user *set_child_tid; /* CLONE_CHILD_SETTID */ -+ pid_t __user *clear_child_tid; /* CLONE_CHILD_CLEARTID */ - - cputime_t utime, stime, utimescaled, stimescaled; - cputime_t gtime; -@@ -1355,8 +1364,64 @@ struct task_struct { - unsigned long default_timer_slack_ns; - - struct list_head *scm_work_list; -+ -+#ifdef CONFIG_GRKERNSEC -+ /* grsecurity */ -+ struct acl_subject_label *acl; -+ struct acl_role_label *role; -+ struct file *exec_file; -+ u16 acl_role_id; -+ u8 acl_sp_role; -+ u8 is_writable; -+ u8 brute; -+#endif -+ - }; - -+#define MF_PAX_PAGEEXEC 0x01000000 /* Paging based non-executable pages */ -+#define MF_PAX_EMUTRAMP 0x02000000 /* Emulate trampolines */ -+#define MF_PAX_MPROTECT 0x04000000 /* Restrict mprotect() */ -+#define MF_PAX_RANDMMAP 0x08000000 /* Randomize mmap() base */ -+/*#define MF_PAX_RANDEXEC 0x10000000*/ /* Randomize ET_EXEC base */ -+#define MF_PAX_SEGMEXEC 0x20000000 /* Segmentation based non-executable pages */ -+ -+#ifdef CONFIG_PAX_SOFTMODE -+extern unsigned int pax_softmode; -+#endif -+ -+extern int pax_check_flags(unsigned long *); -+ -+/* if tsk != current then task_lock must be held on it */ -+#if defined(CONFIG_PAX_NOEXEC) || defined(CONFIG_PAX_ASLR) -+static inline unsigned long pax_get_flags(struct task_struct *tsk) -+{ -+ if (likely(tsk->mm)) -+ return tsk->mm->pax_flags; -+ else -+ return 0UL; -+} -+ -+/* if tsk != current then task_lock must be held on it */ -+static inline long pax_set_flags(struct task_struct *tsk, unsigned long flags) -+{ -+ if (likely(tsk->mm)) { -+ tsk->mm->pax_flags = flags; -+ return 0; -+ } -+ return -EINVAL; -+} -+#endif -+ -+#ifdef CONFIG_PAX_HAVE_ACL_FLAGS -+extern void pax_set_initial_flags(struct linux_binprm *bprm); -+#elif defined(CONFIG_PAX_HOOK_ACL_FLAGS) -+extern void (*pax_set_initial_flags_func)(struct linux_binprm *bprm); -+#endif -+ -+void pax_report_fault(struct pt_regs *regs, void *pc, void *sp); -+void pax_report_insns(void *pc, void *sp); -+void pax_report_refcount_overflow(struct pt_regs *regs); -+ - /* - * Priority of a process goes from 0..MAX_PRIO-1, valid RT - * priority is 0..MAX_RT_PRIO-1, and SCHED_NORMAL/SCHED_BATCH -@@ -1899,7 +1964,7 @@ extern void __cleanup_sighand(struct sig - extern void exit_itimers(struct signal_struct *); - extern void flush_itimer_signals(void); - --extern NORET_TYPE void do_group_exit(int); -+extern NORET_TYPE void do_group_exit(int) ATTRIB_NORET; - - extern void daemonize(const char *, ...); - extern int allow_signal(int); -@@ -2002,8 +2067,8 @@ static inline void unlock_task_sighand(s - - #ifndef __HAVE_THREAD_FUNCTIONS - --#define task_thread_info(task) ((struct thread_info *)(task)->stack) --#define task_stack_page(task) ((task)->stack) -+#define task_thread_info(task) ((task)->stack) -+#define task_stack_page(task) ((void *)(task)->stack) - - static inline void setup_thread_stack(struct task_struct *p, struct task_struct *org) - { -diff -urNp linux-2.6.28.8/include/linux/screen_info.h linux-2.6.28.8/include/linux/screen_info.h ---- linux-2.6.28.8/include/linux/screen_info.h 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/include/linux/screen_info.h 2009-02-21 09:37:49.000000000 -0500 -@@ -42,7 +42,8 @@ struct screen_info { - __u16 pages; /* 0x32 */ - __u16 vesa_attributes; /* 0x34 */ - __u32 capabilities; /* 0x36 */ -- __u8 _reserved[6]; /* 0x3a */ -+ __u16 vesapm_size; /* 0x3a */ -+ __u8 _reserved[4]; /* 0x3c */ - } __attribute__((packed)); - - #define VIDEO_TYPE_MDA 0x10 /* Monochrome Text Display */ -diff -urNp linux-2.6.28.8/include/linux/security.h linux-2.6.28.8/include/linux/security.h ---- linux-2.6.28.8/include/linux/security.h 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/include/linux/security.h 2009-02-21 09:37:49.000000000 -0500 -@@ -32,6 +32,7 @@ - #include <linux/sched.h> - #include <linux/key.h> - #include <linux/xfrm.h> -+#include <linux/grsecurity.h> - #include <net/flow.h> - - /* Maximum number of letters for an LSM name string */ -diff -urNp linux-2.6.28.8/include/linux/shm.h linux-2.6.28.8/include/linux/shm.h ---- linux-2.6.28.8/include/linux/shm.h 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/include/linux/shm.h 2009-02-21 09:37:49.000000000 -0500 -@@ -95,6 +95,10 @@ struct shmid_kernel /* private to the ke - pid_t shm_cprid; - pid_t shm_lprid; - struct user_struct *mlock_user; -+#ifdef CONFIG_GRKERNSEC -+ time_t shm_createtime; -+ pid_t shm_lapid; -+#endif - }; - - /* shm_mode upper byte flags */ -diff -urNp linux-2.6.28.8/include/linux/slab.h linux-2.6.28.8/include/linux/slab.h ---- linux-2.6.28.8/include/linux/slab.h 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/include/linux/slab.h 2009-02-21 09:37:49.000000000 -0500 -@@ -73,10 +73,9 @@ - * ZERO_SIZE_PTR can be passed to kfree though in the same way that NULL can. - * Both make kfree a no-op. - */ --#define ZERO_SIZE_PTR ((void *)16) -+#define ZERO_SIZE_PTR ((void *)-1024L) - --#define ZERO_OR_NULL_PTR(x) ((unsigned long)(x) <= \ -- (unsigned long)ZERO_SIZE_PTR) -+#define ZERO_OR_NULL_PTR(x) (!(x) || (x) == ZERO_SIZE_PTR) - - /* - * struct kmem_cache related prototypes -diff -urNp linux-2.6.28.8/include/linux/sysctl.h linux-2.6.28.8/include/linux/sysctl.h ---- linux-2.6.28.8/include/linux/sysctl.h 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/include/linux/sysctl.h 2009-02-21 09:37:49.000000000 -0500 -@@ -165,7 +165,11 @@ enum - KERN_PANIC_ON_NMI=76, /* int: whether we will panic on an unrecovered */ - }; - -- -+#ifdef CONFIG_PAX_SOFTMODE -+enum { -+ PAX_SOFTMODE=1 /* PaX: disable/enable soft mode */ -+}; -+#endif - - /* CTL_VM names: */ - enum -diff -urNp linux-2.6.28.8/include/linux/thread_info.h linux-2.6.28.8/include/linux/thread_info.h ---- linux-2.6.28.8/include/linux/thread_info.h 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/include/linux/thread_info.h 2009-02-21 09:37:49.000000000 -0500 -@@ -23,7 +23,7 @@ struct restart_block { - }; - /* For futex_wait */ - struct { -- u32 *uaddr; -+ u32 __user *uaddr; - u32 val; - u32 flags; - u32 bitset; -diff -urNp linux-2.6.28.8/include/linux/uaccess.h linux-2.6.28.8/include/linux/uaccess.h ---- linux-2.6.28.8/include/linux/uaccess.h 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/include/linux/uaccess.h 2009-02-21 09:37:49.000000000 -0500 -@@ -76,11 +76,11 @@ static inline unsigned long __copy_from_ - long ret; \ - mm_segment_t old_fs = get_fs(); \ - \ -- set_fs(KERNEL_DS); \ - pagefault_disable(); \ -+ set_fs(KERNEL_DS); \ - ret = __get_user(retval, (__force typeof(retval) __user *)(addr)); \ -- pagefault_enable(); \ - set_fs(old_fs); \ -+ pagefault_enable(); \ - ret; \ - }) - -diff -urNp linux-2.6.28.8/include/linux/vmalloc.h linux-2.6.28.8/include/linux/vmalloc.h ---- linux-2.6.28.8/include/linux/vmalloc.h 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/include/linux/vmalloc.h 2009-02-21 09:37:49.000000000 -0500 -@@ -13,6 +13,11 @@ struct vm_area_struct; /* vma defining - #define VM_MAP 0x00000004 /* vmap()ed pages */ - #define VM_USERMAP 0x00000008 /* suitable for remap_vmalloc_range */ - #define VM_VPAGES 0x00000010 /* buffer for pages was vmalloc'ed */ -+ -+#if defined(CONFIG_MODULES) && defined(CONFIG_X86_32) && defined(CONFIG_PAX_KERNEXEC) -+#define VM_KERNEXEC 0x00000020 /* allocate from executable kernel memory range */ -+#endif -+ - /* bits [20..32] reserved for arch specific ioremap internals */ - - /* -diff -urNp linux-2.6.28.8/include/net/sctp/sctp.h linux-2.6.28.8/include/net/sctp/sctp.h ---- linux-2.6.28.8/include/net/sctp/sctp.h 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/include/net/sctp/sctp.h 2009-02-21 09:37:49.000000000 -0500 -@@ -309,8 +309,8 @@ extern int sctp_debug_flag; - - #else /* SCTP_DEBUG */ - --#define SCTP_DEBUG_PRINTK(whatever...) --#define SCTP_DEBUG_PRINTK_IPADDR(whatever...) -+#define SCTP_DEBUG_PRINTK(whatever...) do {} while (0) -+#define SCTP_DEBUG_PRINTK_IPADDR(whatever...) do {} while (0) - #define SCTP_ENABLE_DEBUG - #define SCTP_DISABLE_DEBUG - #define SCTP_ASSERT(expr, str, func) -diff -urNp linux-2.6.28.8/include/sound/core.h linux-2.6.28.8/include/sound/core.h ---- linux-2.6.28.8/include/sound/core.h 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/include/sound/core.h 2009-02-21 09:37:49.000000000 -0500 -@@ -405,7 +405,7 @@ static inline int __snd_bug_on(void) - */ - #define snd_printdd(format, args...) snd_printk(format, ##args) - #else --#define snd_printdd(format, args...) /* nothing */ -+#define snd_printdd(format, args...) do {} while (0) - #endif - - -diff -urNp linux-2.6.28.8/include/video/uvesafb.h linux-2.6.28.8/include/video/uvesafb.h ---- linux-2.6.28.8/include/video/uvesafb.h 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/include/video/uvesafb.h 2009-02-21 09:37:49.000000000 -0500 -@@ -175,6 +175,7 @@ struct uvesafb_par { - u8 ypan; /* 0 - nothing, 1 - ypan, 2 - ywrap */ - u8 pmi_setpal; /* PMI for palette changes */ - u16 *pmi_base; /* protected mode interface location */ -+ u8 *pmi_code; /* protected mode code location */ - void *pmi_start; - void *pmi_pal; - u8 *vbe_state_orig; /* -diff -urNp linux-2.6.28.8/init/do_mounts.c linux-2.6.28.8/init/do_mounts.c ---- linux-2.6.28.8/init/do_mounts.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/init/do_mounts.c 2009-02-21 09:37:49.000000000 -0500 -@@ -214,11 +214,11 @@ static void __init get_fs_names(char *pa - - static int __init do_mount_root(char *name, char *fs, int flags, void *data) - { -- int err = sys_mount(name, "/root", fs, flags, data); -+ int err = sys_mount((char __user *)name, (char __user *)"/root", (char __user *)fs, flags, (void __user *)data); - if (err) - return err; - -- sys_chdir("/root"); -+ sys_chdir((char __user *)"/root"); - ROOT_DEV = current->fs->pwd.mnt->mnt_sb->s_dev; - printk("VFS: Mounted root (%s filesystem)%s.\n", - current->fs->pwd.mnt->mnt_sb->s_type->name, -@@ -308,18 +308,18 @@ void __init change_floppy(char *fmt, ... - va_start(args, fmt); - vsprintf(buf, fmt, args); - va_end(args); -- fd = sys_open("/dev/root", O_RDWR | O_NDELAY, 0); -+ fd = sys_open((char __user *)"/dev/root", O_RDWR | O_NDELAY, 0); - if (fd >= 0) { - sys_ioctl(fd, FDEJECT, 0); - sys_close(fd); - } - printk(KERN_NOTICE "VFS: Insert %s and press ENTER\n", buf); -- fd = sys_open("/dev/console", O_RDWR, 0); -+ fd = sys_open((char __user *)"/dev/console", O_RDWR, 0); - if (fd >= 0) { - sys_ioctl(fd, TCGETS, (long)&termios); - termios.c_lflag &= ~ICANON; - sys_ioctl(fd, TCSETSF, (long)&termios); -- sys_read(fd, &c, 1); -+ sys_read(fd, (char __user *)&c, 1); - termios.c_lflag |= ICANON; - sys_ioctl(fd, TCSETSF, (long)&termios); - sys_close(fd); -@@ -406,7 +406,7 @@ void __init prepare_namespace(void) - - mount_root(); - out: -- sys_mount(".", "/", NULL, MS_MOVE, NULL); -- sys_chroot("."); -+ sys_mount((char __user *)".", (char __user *)"/", NULL, MS_MOVE, NULL); -+ sys_chroot((char __user *)"."); - } - -diff -urNp linux-2.6.28.8/init/do_mounts.h linux-2.6.28.8/init/do_mounts.h ---- linux-2.6.28.8/init/do_mounts.h 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/init/do_mounts.h 2009-02-21 09:37:49.000000000 -0500 -@@ -14,15 +14,15 @@ extern int root_mountflags; - - static inline int create_dev(char *name, dev_t dev) - { -- sys_unlink(name); -- return sys_mknod(name, S_IFBLK|0600, new_encode_dev(dev)); -+ sys_unlink((char __user *)name); -+ return sys_mknod((char __user *)name, S_IFBLK|0600, new_encode_dev(dev)); - } - - #if BITS_PER_LONG == 32 - static inline u32 bstat(char *name) - { - struct stat64 stat; -- if (sys_stat64(name, &stat) != 0) -+ if (sys_stat64((char __user *)name, (struct stat64 __user *)&stat) != 0) - return 0; - if (!S_ISBLK(stat.st_mode)) - return 0; -diff -urNp linux-2.6.28.8/init/do_mounts_initrd.c linux-2.6.28.8/init/do_mounts_initrd.c ---- linux-2.6.28.8/init/do_mounts_initrd.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/init/do_mounts_initrd.c 2009-02-21 09:37:49.000000000 -0500 -@@ -32,7 +32,7 @@ static int __init do_linuxrc(void * shel - sys_close(old_fd);sys_close(root_fd); - sys_close(0);sys_close(1);sys_close(2); - sys_setsid(); -- (void) sys_open("/dev/console",O_RDWR,0); -+ (void) sys_open((const char __user *)"/dev/console",O_RDWR,0); - (void) sys_dup(0); - (void) sys_dup(0); - return kernel_execve(shell, argv, envp_init); -@@ -47,13 +47,13 @@ static void __init handle_initrd(void) - create_dev("/dev/root.old", Root_RAM0); - /* mount initrd on rootfs' /root */ - mount_block_root("/dev/root.old", root_mountflags & ~MS_RDONLY); -- sys_mkdir("/old", 0700); -- root_fd = sys_open("/", 0, 0); -- old_fd = sys_open("/old", 0, 0); -+ sys_mkdir((const char __user *)"/old", 0700); -+ root_fd = sys_open((const char __user *)"/", 0, 0); -+ old_fd = sys_open((const char __user *)"/old", 0, 0); - /* move initrd over / and chdir/chroot in initrd root */ -- sys_chdir("/root"); -- sys_mount(".", "/", NULL, MS_MOVE, NULL); -- sys_chroot("."); -+ sys_chdir((const char __user *)"/root"); -+ sys_mount((char __user *)".", (char __user *)"/", NULL, MS_MOVE, NULL); -+ sys_chroot((const char __user *)"."); - - /* - * In case that a resume from disk is carried out by linuxrc or one of -@@ -70,15 +70,15 @@ static void __init handle_initrd(void) - - /* move initrd to rootfs' /old */ - sys_fchdir(old_fd); -- sys_mount("/", ".", NULL, MS_MOVE, NULL); -+ sys_mount((char __user *)"/", (char __user *)".", NULL, MS_MOVE, NULL); - /* switch root and cwd back to / of rootfs */ - sys_fchdir(root_fd); -- sys_chroot("."); -+ sys_chroot((const char __user *)"."); - sys_close(old_fd); - sys_close(root_fd); - - if (new_decode_dev(real_root_dev) == Root_RAM0) { -- sys_chdir("/old"); -+ sys_chdir((const char __user *)"/old"); - return; - } - -@@ -86,17 +86,17 @@ static void __init handle_initrd(void) - mount_root(); - - printk(KERN_NOTICE "Trying to move old root to /initrd ... "); -- error = sys_mount("/old", "/root/initrd", NULL, MS_MOVE, NULL); -+ error = sys_mount((char __user *)"/old", (char __user *)"/root/initrd", NULL, MS_MOVE, NULL); - if (!error) - printk("okay\n"); - else { -- int fd = sys_open("/dev/root.old", O_RDWR, 0); -+ int fd = sys_open((const char __user *)"/dev/root.old", O_RDWR, 0); - if (error == -ENOENT) - printk("/initrd does not exist. Ignored.\n"); - else - printk("failed\n"); - printk(KERN_NOTICE "Unmounting old root\n"); -- sys_umount("/old", MNT_DETACH); -+ sys_umount((char __user *)"/old", MNT_DETACH); - printk(KERN_NOTICE "Trying to free ramdisk memory ... "); - if (fd < 0) { - error = fd; -@@ -119,11 +119,11 @@ int __init initrd_load(void) - * mounted in the normal path. - */ - if (rd_load_image("/initrd.image") && ROOT_DEV != Root_RAM0) { -- sys_unlink("/initrd.image"); -+ sys_unlink((const char __user *)"/initrd.image"); - handle_initrd(); - return 1; - } - } -- sys_unlink("/initrd.image"); -+ sys_unlink((const char __user *)"/initrd.image"); - return 0; - } -diff -urNp linux-2.6.28.8/init/do_mounts_md.c linux-2.6.28.8/init/do_mounts_md.c ---- linux-2.6.28.8/init/do_mounts_md.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/init/do_mounts_md.c 2009-02-21 09:37:49.000000000 -0500 -@@ -171,7 +171,7 @@ static void __init md_setup_drive(void) - partitioned ? "_d" : "", minor, - md_setup_args[ent].device_names); - -- fd = sys_open(name, 0, 0); -+ fd = sys_open((char __user *)name, 0, 0); - if (fd < 0) { - printk(KERN_ERR "md: open failed - cannot start " - "array %s\n", name); -@@ -234,7 +234,7 @@ static void __init md_setup_drive(void) - * array without it - */ - sys_close(fd); -- fd = sys_open(name, 0, 0); -+ fd = sys_open((char __user *)name, 0, 0); - sys_ioctl(fd, BLKRRPART, 0); - } - sys_close(fd); -@@ -283,7 +283,7 @@ static void autodetect_raid(void) - printk(KERN_INFO "md: If you don't use raid, use raid=noautodetect\n"); - while (driver_probe_done() < 0) - msleep(100); -- fd = sys_open("/dev/md0", 0, 0); -+ fd = sys_open((char __user *)"/dev/md0", 0, 0); - if (fd >= 0) { - sys_ioctl(fd, RAID_AUTORUN, raid_autopart); - sys_close(fd); -diff -urNp linux-2.6.28.8/init/initramfs.c linux-2.6.28.8/init/initramfs.c ---- linux-2.6.28.8/init/initramfs.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/init/initramfs.c 2009-02-21 09:37:49.000000000 -0500 -@@ -276,7 +276,7 @@ static int __init maybe_link(void) - if (nlink >= 2) { - char *old = find_link(major, minor, ino, mode, collected); - if (old) -- return (sys_link(old, collected) < 0) ? -1 : 1; -+ return (sys_link((char __user *)old, (char __user *)collected) < 0) ? -1 : 1; - } - return 0; - } -@@ -285,11 +285,11 @@ static void __init clean_path(char *path - { - struct stat st; - -- if (!sys_newlstat(path, &st) && (st.st_mode^mode) & S_IFMT) { -+ if (!sys_newlstat((char __user *)path, (struct stat __user *)&st) && (st.st_mode^mode) & S_IFMT) { - if (S_ISDIR(st.st_mode)) -- sys_rmdir(path); -+ sys_rmdir((char __user *)path); - else -- sys_unlink(path); -+ sys_unlink((char __user *)path); - } - } - -@@ -312,7 +312,7 @@ static int __init do_name(void) - int openflags = O_WRONLY|O_CREAT; - if (ml != 1) - openflags |= O_TRUNC; -- wfd = sys_open(collected, openflags, mode); -+ wfd = sys_open((char __user *)collected, openflags, mode); - - if (wfd >= 0) { - sys_fchown(wfd, uid, gid); -@@ -322,16 +322,16 @@ static int __init do_name(void) - } - } - } else if (S_ISDIR(mode)) { -- sys_mkdir(collected, mode); -- sys_chown(collected, uid, gid); -- sys_chmod(collected, mode); -+ sys_mkdir((char __user *)collected, mode); -+ sys_chown((char __user *)collected, uid, gid); -+ sys_chmod((char __user *)collected, mode); - dir_add(collected, mtime); - } else if (S_ISBLK(mode) || S_ISCHR(mode) || - S_ISFIFO(mode) || S_ISSOCK(mode)) { - if (maybe_link() == 0) { -- sys_mknod(collected, mode, rdev); -- sys_chown(collected, uid, gid); -- sys_chmod(collected, mode); -+ sys_mknod((char __user *)collected, mode, rdev); -+ sys_chown((char __user *)collected, uid, gid); -+ sys_chmod((char __user *)collected, mode); - do_utime(collected, mtime); - } - } -@@ -341,7 +341,7 @@ static int __init do_name(void) - static int __init do_copy(void) - { - if (count >= body_len) { -- sys_write(wfd, victim, body_len); -+ sys_write(wfd, (char __user *)victim, body_len); - sys_close(wfd); - do_utime(vcollected, mtime); - kfree(vcollected); -@@ -349,7 +349,7 @@ static int __init do_copy(void) - state = SkipIt; - return 0; - } else { -- sys_write(wfd, victim, count); -+ sys_write(wfd, (char __user *)victim, count); - body_len -= count; - eat(count); - return 1; -@@ -360,8 +360,8 @@ static int __init do_symlink(void) - { - collected[N_ALIGN(name_len) + body_len] = '\0'; - clean_path(collected, 0); -- sys_symlink(collected + N_ALIGN(name_len), collected); -- sys_lchown(collected, uid, gid); -+ sys_symlink((char __user *)collected + N_ALIGN(name_len), (char __user *)collected); -+ sys_lchown((char __user *)collected, uid, gid); - do_utime(collected, mtime); - state = SkipIt; - next_state = Reset; -diff -urNp linux-2.6.28.8/init/Kconfig linux-2.6.28.8/init/Kconfig ---- linux-2.6.28.8/init/Kconfig 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/init/Kconfig 2009-02-21 09:37:49.000000000 -0500 -@@ -572,6 +572,7 @@ config SYSCTL_SYSCALL - config KALLSYMS - bool "Load all symbols for debugging/ksymoops" if EMBEDDED - default y -+ depends on !GRKERNSEC_HIDESYM - help - Say Y here to let the kernel print out symbolic crash information and - symbolic stack backtraces. This increases the size of the kernel -@@ -822,9 +823,9 @@ config HAVE_GENERIC_DMA_COHERENT - - config SLABINFO - bool -- depends on PROC_FS -+ depends on PROC_FS && !GRKERNSEC_PROC_ADD - depends on SLAB || SLUB_DEBUG -- default y -+ default n - - config RT_MUTEXES - boolean -diff -urNp linux-2.6.28.8/init/main.c linux-2.6.28.8/init/main.c ---- linux-2.6.28.8/init/main.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/init/main.c 2009-02-21 09:37:49.000000000 -0500 -@@ -104,6 +104,7 @@ static inline void mark_rodata_ro(void) - #ifdef CONFIG_TC - extern void tc_init(void); - #endif -+extern void grsecurity_init(void); - - enum system_states system_state; - EXPORT_SYMBOL(system_state); -@@ -190,6 +191,40 @@ static int __init set_reset_devices(char - - __setup("reset_devices", set_reset_devices); - -+#if defined(CONFIG_PAX_MEMORY_UDEREF) && defined(CONFIG_X86_32) -+static int __init setup_pax_nouderef(char *str) -+{ -+ unsigned int cpu; -+ -+#ifdef CONFIG_PAX_KERNEXEC -+ unsigned long cr0; -+ -+ pax_open_kernel(cr0); -+#endif -+ -+ for (cpu = 0; cpu < NR_CPUS; cpu++) -+ get_cpu_gdt_table(cpu)[GDT_ENTRY_KERNEL_DS].b = 0x00cf9300; -+ -+#ifdef CONFIG_PAX_KERNEXEC -+ pax_close_kernel(cr0); -+#endif -+ -+ return 1; -+} -+__setup("pax_nouderef", setup_pax_nouderef); -+#endif -+ -+#ifdef CONFIG_PAX_SOFTMODE -+unsigned int pax_softmode; -+ -+static int __init setup_pax_softmode(char *str) -+{ -+ get_option(&str, &pax_softmode); -+ return 1; -+} -+__setup("pax_softmode=", setup_pax_softmode); -+#endif -+ - static char * argv_init[MAX_INIT_ARGS+2] = { "init", NULL, }; - char * envp_init[MAX_INIT_ENVS+2] = { "HOME=/", "TERM=linux", NULL, }; - static const char *panic_later, *panic_param; -@@ -388,7 +423,7 @@ static void __init setup_nr_cpu_ids(void - } - - #ifndef CONFIG_HAVE_SETUP_PER_CPU_AREA --unsigned long __per_cpu_offset[NR_CPUS] __read_mostly; -+unsigned long __per_cpu_offset[NR_CPUS] __read_only; - - EXPORT_SYMBOL(__per_cpu_offset); - -@@ -704,6 +739,7 @@ int do_one_initcall(initcall_t fn) - { - int count = preempt_count(); - ktime_t delta; -+ const char *msg1 = "", *msg2 = ""; - char msgbuf[64]; - struct boot_trace it; - -@@ -730,15 +766,15 @@ int do_one_initcall(initcall_t fn) - sprintf(msgbuf, "error code %d ", it.result); - - if (preempt_count() != count) { -- strlcat(msgbuf, "preemption imbalance ", sizeof(msgbuf)); -+ msg1 = " preemption imbalance"; - preempt_count() = count; - } - if (irqs_disabled()) { -- strlcat(msgbuf, "disabled interrupts ", sizeof(msgbuf)); -+ msg2 = " disabled interrupts"; - local_irq_enable(); - } -- if (msgbuf[0]) { -- printk("initcall %pF returned with %s\n", fn, msgbuf); -+ if (msgbuf[0] || *msg1 || *msg2) { -+ printk("initcall %pF returned with %s%s%s\n", fn, msgbuf, msg1, msg2); - } - - return it.result; -@@ -877,6 +913,8 @@ static int __init kernel_init(void * unu - prepare_namespace(); - } - -+ grsecurity_init(); -+ - /* - * Ok, we have completed the initial bootup, and - * we're essentially up and running. Get rid of the -diff -urNp linux-2.6.28.8/init/noinitramfs.c linux-2.6.28.8/init/noinitramfs.c ---- linux-2.6.28.8/init/noinitramfs.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/init/noinitramfs.c 2009-02-21 09:37:49.000000000 -0500 -@@ -29,7 +29,7 @@ static int __init default_rootfs(void) - { - int err; - -- err = sys_mkdir("/dev", 0755); -+ err = sys_mkdir((const char __user *)"/dev", 0755); - if (err < 0) - goto out; - -@@ -39,7 +39,7 @@ static int __init default_rootfs(void) - if (err < 0) - goto out; - -- err = sys_mkdir("/root", 0700); -+ err = sys_mkdir((const char __user *)"/root", 0700); - if (err < 0) - goto out; - -diff -urNp linux-2.6.28.8/ipc/ipc_sysctl.c linux-2.6.28.8/ipc/ipc_sysctl.c ---- linux-2.6.28.8/ipc/ipc_sysctl.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/ipc/ipc_sysctl.c 2009-02-21 09:37:49.000000000 -0500 -@@ -267,7 +267,7 @@ static struct ctl_table ipc_kern_table[] - .extra1 = &zero, - .extra2 = &one, - }, -- {} -+ { 0, NULL, NULL, 0, 0, NULL, NULL, NULL, NULL, NULL, NULL } - }; - - static struct ctl_table ipc_root_table[] = { -@@ -277,7 +277,7 @@ static struct ctl_table ipc_root_table[] - .mode = 0555, - .child = ipc_kern_table, - }, -- {} -+ { 0, NULL, NULL, 0, 0, NULL, NULL, NULL, NULL, NULL, NULL } - }; - - static int __init ipc_sysctl_init(void) -diff -urNp linux-2.6.28.8/ipc/msg.c linux-2.6.28.8/ipc/msg.c ---- linux-2.6.28.8/ipc/msg.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/ipc/msg.c 2009-02-21 09:37:49.000000000 -0500 -@@ -314,6 +314,7 @@ SYSCALL_DEFINE2(msgget, key_t, key, int, - struct ipc_namespace *ns; - struct ipc_ops msg_ops; - struct ipc_params msg_params; -+ long err; - - ns = current->nsproxy->ipc_ns; - -@@ -324,7 +325,11 @@ SYSCALL_DEFINE2(msgget, key_t, key, int, - msg_params.key = key; - msg_params.flg = msgflg; - -- return ipcget(ns, &msg_ids(ns), &msg_ops, &msg_params); -+ err = ipcget(ns, &msg_ids(ns), &msg_ops, &msg_params); -+ -+ gr_log_msgget(err, msgflg); -+ -+ return err; - } - - static inline unsigned long -@@ -434,6 +439,7 @@ static int msgctl_down(struct ipc_namesp - - switch (cmd) { - case IPC_RMID: -+ gr_log_msgrm(ipcp->uid, ipcp->cuid); - freeque(ns, ipcp); - goto out_up; - case IPC_SET: -diff -urNp linux-2.6.28.8/ipc/sem.c linux-2.6.28.8/ipc/sem.c ---- linux-2.6.28.8/ipc/sem.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/ipc/sem.c 2009-02-21 09:37:49.000000000 -0500 -@@ -313,6 +313,7 @@ SYSCALL_DEFINE3(semget, key_t, key, int, - struct ipc_namespace *ns; - struct ipc_ops sem_ops; - struct ipc_params sem_params; -+ long err; - - ns = current->nsproxy->ipc_ns; - -@@ -327,7 +328,11 @@ SYSCALL_DEFINE3(semget, key_t, key, int, - sem_params.flg = semflg; - sem_params.u.nsems = nsems; - -- return ipcget(ns, &sem_ids(ns), &sem_ops, &sem_params); -+ err = ipcget(ns, &sem_ids(ns), &sem_ops, &sem_params); -+ -+ gr_log_semget(err, semflg); -+ -+ return err; - } - - /* -@@ -870,6 +875,7 @@ static int semctl_down(struct ipc_namesp - - switch(cmd){ - case IPC_RMID: -+ gr_log_semrm(ipcp->uid, ipcp->cuid); - freeary(ns, ipcp); - goto out_up; - case IPC_SET: -diff -urNp linux-2.6.28.8/ipc/shm.c linux-2.6.28.8/ipc/shm.c ---- linux-2.6.28.8/ipc/shm.c 2009-02-07 16:10:45.000000000 -0500 -+++ linux-2.6.28.8/ipc/shm.c 2009-02-21 09:37:49.000000000 -0500 -@@ -69,6 +69,14 @@ static void shm_destroy (struct ipc_name - static int sysvipc_shm_proc_show(struct seq_file *s, void *it); - #endif - -+#ifdef CONFIG_GRKERNSEC -+extern int gr_handle_shmat(const pid_t shm_cprid, const pid_t shm_lapid, -+ const time_t shm_createtime, const uid_t cuid, -+ const int shmid); -+extern int gr_chroot_shmat(const pid_t shm_cprid, const pid_t shm_lapid, -+ const time_t shm_createtime); -+#endif -+ - void shm_init_ns(struct ipc_namespace *ns) - { - ns->shm_ctlmax = SHMMAX; -@@ -87,6 +95,8 @@ static void do_shm_rmid(struct ipc_names - struct shmid_kernel *shp; - shp = container_of(ipcp, struct shmid_kernel, shm_perm); - -+ gr_log_shmrm(shp->shm_perm.uid, shp->shm_perm.cuid); -+ - if (shp->shm_nattch){ - shp->shm_perm.mode |= SHM_DEST; - /* Do not find it any more */ -@@ -392,6 +402,14 @@ static int newseg(struct ipc_namespace * - shp->shm_lprid = 0; - shp->shm_atim = shp->shm_dtim = 0; - shp->shm_ctim = get_seconds(); -+#ifdef CONFIG_GRKERNSEC -+ { -+ struct timespec timeval; -+ do_posix_clock_monotonic_gettime(&timeval); -+ -+ shp->shm_createtime = timeval.tv_sec; -+ } -+#endif - shp->shm_segsz = size; - shp->shm_nattch = 0; - shp->shm_file = file; -@@ -445,6 +463,7 @@ SYSCALL_DEFINE3(shmget, key_t, key, size - struct ipc_namespace *ns; - struct ipc_ops shm_ops; - struct ipc_params shm_params; -+ long err; - - ns = current->nsproxy->ipc_ns; - -@@ -456,7 +475,11 @@ SYSCALL_DEFINE3(shmget, key_t, key, size - shm_params.flg = shmflg; - shm_params.u.size = size; - -- return ipcget(ns, &shm_ids(ns), &shm_ops, &shm_params); -+ err = ipcget(ns, &shm_ids(ns), &shm_ops, &shm_params); -+ -+ gr_log_shmget(err, shmflg, size); -+ -+ return err; - } - - static inline unsigned long copy_shmid_to_user(void __user *buf, struct shmid64_ds *in, int version) -@@ -877,9 +900,21 @@ long do_shmat(int shmid, char __user *sh - if (err) - goto out_unlock; - -+#ifdef CONFIG_GRKERNSEC -+ if (!gr_handle_shmat(shp->shm_cprid, shp->shm_lapid, shp->shm_createtime, -+ shp->shm_perm.cuid, shmid) || -+ !gr_chroot_shmat(shp->shm_cprid, shp->shm_lapid, shp->shm_createtime)) { -+ err = -EACCES; -+ goto out_unlock; -+ } -+#endif -+ - path.dentry = dget(shp->shm_file->f_path.dentry); - path.mnt = shp->shm_file->f_path.mnt; - shp->shm_nattch++; -+#ifdef CONFIG_GRKERNSEC -+ shp->shm_lapid = current->pid; -+#endif - size = i_size_read(path.dentry->d_inode); - shm_unlock(shp); - -diff -urNp linux-2.6.28.8/kernel/acct.c linux-2.6.28.8/kernel/acct.c ---- linux-2.6.28.8/kernel/acct.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/kernel/acct.c 2009-02-21 09:37:49.000000000 -0500 -@@ -573,7 +573,7 @@ static void do_acct_process(struct bsd_a - */ - flim = current->signal->rlim[RLIMIT_FSIZE].rlim_cur; - current->signal->rlim[RLIMIT_FSIZE].rlim_cur = RLIM_INFINITY; -- file->f_op->write(file, (char *)&ac, -+ file->f_op->write(file, (char __user *)&ac, - sizeof(acct_t), &file->f_pos); - current->signal->rlim[RLIMIT_FSIZE].rlim_cur = flim; - set_fs(fs); -diff -urNp linux-2.6.28.8/kernel/capability.c linux-2.6.28.8/kernel/capability.c ---- linux-2.6.28.8/kernel/capability.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/kernel/capability.c 2009-02-21 09:37:49.000000000 -0500 -@@ -498,10 +498,21 @@ SYSCALL_DEFINE2(capset, cap_user_header_ - */ - int capable(int cap) - { -- if (has_capability(current, cap)) { -+ if (has_capability(current, cap) && gr_task_is_capable(current, cap)) { - current->flags |= PF_SUPERPRIV; - return 1; - } - return 0; - } -+ -+int capable_nolog(int cap) -+{ -+ if (has_capability(current, cap) && gr_is_capable_nolog(cap)) { -+ current->flags |= PF_SUPERPRIV; -+ return 1; -+ } -+ return 0; -+} -+ - EXPORT_SYMBOL(capable); -+EXPORT_SYMBOL(capable_nolog); -diff -urNp linux-2.6.28.8/kernel/configs.c linux-2.6.28.8/kernel/configs.c ---- linux-2.6.28.8/kernel/configs.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/kernel/configs.c 2009-02-21 09:37:49.000000000 -0500 -@@ -73,8 +73,19 @@ static int __init ikconfig_init(void) - struct proc_dir_entry *entry; - - /* create the current config file */ -+#ifdef CONFIG_GRKERNSEC_PROC_ADD -+#ifdef CONFIG_GRKERNSEC_PROC_USER -+ entry = proc_create("config.gz", S_IFREG | S_IRUSR, NULL, -+ &ikconfig_file_ops); -+#elif defined(CONFIG_GRKERNSEC_PROC_USERGROUP) -+ entry = proc_create("config.gz", S_IFREG | S_IRUSR | S_IRGRP, NULL, -+ &ikconfig_file_ops); -+#endif -+#else - entry = proc_create("config.gz", S_IFREG | S_IRUGO, NULL, - &ikconfig_file_ops); -+#endif -+ - if (!entry) - return -ENOMEM; - -diff -urNp linux-2.6.28.8/kernel/cpu.c linux-2.6.28.8/kernel/cpu.c ---- linux-2.6.28.8/kernel/cpu.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/kernel/cpu.c 2009-02-21 09:37:49.000000000 -0500 -@@ -40,7 +40,7 @@ EXPORT_SYMBOL(cpu_possible_map); - /* Serializes the updates to cpu_online_map, cpu_present_map */ - static DEFINE_MUTEX(cpu_add_remove_lock); - --static __cpuinitdata RAW_NOTIFIER_HEAD(cpu_chain); -+static RAW_NOTIFIER_HEAD(cpu_chain); - - /* If set, cpu_up and cpu_down will return -EBUSY and do nothing. - * Should always be manipulated under cpu_add_remove_lock -diff -urNp linux-2.6.28.8/kernel/exit.c linux-2.6.28.8/kernel/exit.c ---- linux-2.6.28.8/kernel/exit.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/kernel/exit.c 2009-03-07 04:29:14.000000000 -0500 -@@ -53,6 +53,10 @@ - #include <asm/pgtable.h> - #include <asm/mmu_context.h> - -+#ifdef CONFIG_GRKERNSEC -+extern rwlock_t grsec_exec_file_lock; -+#endif -+ - static void exit_mm(struct task_struct * tsk); - - static inline int task_detached(struct task_struct *p) -@@ -163,6 +167,8 @@ void release_task(struct task_struct * p - struct task_struct *leader; - int zap_leader; - repeat: -+ gr_del_task_from_ip_table(p); -+ - tracehook_prepare_release_task(p); - atomic_dec(&p->user->processes); - proc_flush_task(p); -@@ -326,11 +332,22 @@ static void reparent_to_kthreadd(void) - { - write_lock_irq(&tasklist_lock); - -+#ifdef CONFIG_GRKERNSEC -+ write_lock(&grsec_exec_file_lock); -+ if (current->exec_file) { -+ fput(current->exec_file); -+ current->exec_file = NULL; -+ } -+ write_unlock(&grsec_exec_file_lock); -+#endif -+ - ptrace_unlink(current); - /* Reparent to init */ - current->real_parent = current->parent = kthreadd_task; - list_move_tail(¤t->sibling, ¤t->real_parent->children); - -+ gr_set_kernel_label(current); -+ - /* Set the exit signal to SIGCHLD so we signal init on exit */ - current->exit_signal = SIGCHLD; - -@@ -424,6 +441,17 @@ void daemonize(const char *name, ...) - vsnprintf(current->comm, sizeof(current->comm), name, args); - va_end(args); - -+#ifdef CONFIG_GRKERNSEC -+ write_lock(&grsec_exec_file_lock); -+ if (current->exec_file) { -+ fput(current->exec_file); -+ current->exec_file = NULL; -+ } -+ write_unlock(&grsec_exec_file_lock); -+#endif -+ -+ gr_set_kernel_label(current); -+ - /* - * If we were started as result of loading a module, close all of the - * user space pages. We don't need them, and if we didn't close them -@@ -1066,6 +1094,9 @@ NORET_TYPE void do_exit(long code) - tsk->exit_code = code; - taskstats_exit(tsk, group_dead); - -+ gr_acl_handle_psacct(tsk, code); -+ gr_acl_handle_exit(); -+ - exit_mm(tsk); - - if (group_dead) -@@ -1272,7 +1303,7 @@ static int wait_task_zombie(struct task_ - if (unlikely(options & WNOWAIT)) { - uid_t uid = p->uid; - int exit_code = p->exit_code; -- int why, status; -+ int why; - - get_task_struct(p); - read_unlock(&tasklist_lock); -diff -urNp linux-2.6.28.8/kernel/fork.c linux-2.6.28.8/kernel/fork.c ---- linux-2.6.28.8/kernel/fork.c 2009-03-07 10:24:49.000000000 -0500 -+++ linux-2.6.28.8/kernel/fork.c 2009-03-07 10:29:51.000000000 -0500 -@@ -236,7 +236,7 @@ static struct task_struct *dup_task_stru - setup_thread_stack(tsk, orig); - - #ifdef CONFIG_CC_STACKPROTECTOR -- tsk->stack_canary = get_random_int(); -+ tsk->stack_canary = pax_get_random_long(); - #endif - - /* One for us, one for whoever does the "release_task()" (usually parent) */ -@@ -273,8 +273,8 @@ static int dup_mmap(struct mm_struct *mm - mm->locked_vm = 0; - mm->mmap = NULL; - mm->mmap_cache = NULL; -- mm->free_area_cache = oldmm->mmap_base; -- mm->cached_hole_size = ~0UL; -+ mm->free_area_cache = oldmm->free_area_cache; -+ mm->cached_hole_size = oldmm->cached_hole_size; - mm->map_count = 0; - cpus_clear(mm->cpu_vm_mask); - mm->mm_rb = RB_ROOT; -@@ -311,6 +311,7 @@ static int dup_mmap(struct mm_struct *mm - tmp->vm_flags &= ~VM_LOCKED; - tmp->vm_mm = mm; - tmp->vm_next = NULL; -+ tmp->vm_mirror = NULL; - anon_vma_link(tmp); - file = tmp->vm_file; - if (file) { -@@ -358,6 +359,31 @@ static int dup_mmap(struct mm_struct *mm - if (retval) - goto out; - } -+ -+#ifdef CONFIG_PAX_SEGMEXEC -+ if (oldmm->pax_flags & MF_PAX_SEGMEXEC) { -+ struct vm_area_struct *mpnt_m; -+ -+ for (mpnt = oldmm->mmap, mpnt_m = mm->mmap; mpnt; mpnt = mpnt->vm_next, mpnt_m = mpnt_m->vm_next) { -+ BUG_ON(!mpnt_m || mpnt_m->vm_mirror || mpnt->vm_mm != oldmm || mpnt_m->vm_mm != mm); -+ -+ if (!mpnt->vm_mirror) -+ continue; -+ -+ if (mpnt->vm_end <= SEGMEXEC_TASK_SIZE) { -+ BUG_ON(mpnt->vm_mirror->vm_mirror != mpnt); -+ mpnt->vm_mirror = mpnt_m; -+ } else { -+ BUG_ON(mpnt->vm_mirror->vm_mirror == mpnt || mpnt->vm_mirror->vm_mirror->vm_mm != mm); -+ mpnt_m->vm_mirror = mpnt->vm_mirror->vm_mirror; -+ mpnt_m->vm_mirror->vm_mirror = mpnt_m; -+ mpnt->vm_mirror->vm_mirror = mpnt; -+ } -+ } -+ BUG_ON(mpnt_m); -+ } -+#endif -+ - /* a new mm has just been created */ - arch_dup_mmap(oldmm, mm); - retval = 0; -@@ -527,9 +553,11 @@ void mm_release(struct task_struct *tsk, - #ifdef CONFIG_FUTEX - if (unlikely(tsk->robust_list)) - exit_robust_list(tsk); -+ tsk->robust_list = NULL; - #ifdef CONFIG_COMPAT - if (unlikely(tsk->compat_robust_list)) - compat_exit_robust_list(tsk); -+ tsk->compat_robust_list = NULL; - #endif - #endif - -@@ -551,7 +579,7 @@ void mm_release(struct task_struct *tsk, - if (tsk->clear_child_tid - && !(tsk->flags & PF_SIGNALED) - && atomic_read(&mm->mm_users) > 1) { -- u32 __user * tidptr = tsk->clear_child_tid; -+ pid_t __user * tidptr = tsk->clear_child_tid; - tsk->clear_child_tid = NULL; - - /* -@@ -559,7 +587,7 @@ void mm_release(struct task_struct *tsk, - * not set up a proper pointer then tough luck. - */ - put_user(0, tidptr); -- sys_futex(tidptr, FUTEX_WAKE, 1, NULL, NULL, 0); -+ sys_futex((u32 __user *)tidptr, FUTEX_WAKE, 1, NULL, NULL, 0); - } - } - -@@ -984,6 +1012,9 @@ static struct task_struct *copy_process( - DEBUG_LOCKS_WARN_ON(!p->softirqs_enabled); - #endif - retval = -EAGAIN; -+ -+ gr_learn_resource(p, RLIMIT_NPROC, atomic_read(&p->user->processes), 0); -+ - if (atomic_read(&p->user->processes) >= - p->signal->rlim[RLIMIT_NPROC].rlim_cur) { - if (!capable(CAP_SYS_ADMIN) && !capable(CAP_SYS_RESOURCE) && -@@ -1147,6 +1178,8 @@ static struct task_struct *copy_process( - goto bad_fork_free_pid; - } - -+ gr_copy_label(p); -+ - p->set_child_tid = (clone_flags & CLONE_CHILD_SETTID) ? child_tidptr : NULL; - /* - * Clear TID on mm_release()? -@@ -1317,6 +1350,8 @@ bad_fork_cleanup_count: - bad_fork_free: - free_task(p); - fork_out: -+ gr_log_forkfail(retval); -+ - return ERR_PTR(retval); - } - -@@ -1395,6 +1430,8 @@ long do_fork(unsigned long clone_flags, - if (clone_flags & CLONE_PARENT_SETTID) - put_user(nr, parent_tidptr); - -+ gr_handle_brute_check(); -+ - if (clone_flags & CLONE_VFORK) { - p->vfork_done = &vfork; - init_completion(&vfork); -diff -urNp linux-2.6.28.8/kernel/futex.c linux-2.6.28.8/kernel/futex.c ---- linux-2.6.28.8/kernel/futex.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/kernel/futex.c 2009-02-21 09:37:49.000000000 -0500 -@@ -188,6 +188,11 @@ static int get_futex_key(u32 __user *uad - struct page *page; - int err; - -+#ifdef CONFIG_PAX_SEGMEXEC -+ if ((mm->pax_flags & MF_PAX_SEGMEXEC) && address >= SEGMEXEC_TASK_SIZE) -+ return -EFAULT; -+#endif -+ - /* - * The futex address must be "naturally" aligned. - */ -@@ -214,8 +219,8 @@ static int get_futex_key(u32 __user *uad - * The futex is hashed differently depending on whether - * it's in a shared or private mapping. So check vma first. - */ -- vma = find_extend_vma(mm, address); -- if (unlikely(!vma)) -+ vma = find_vma(mm, address); -+ if (unlikely(!vma || address < vma->vm_start)) - return -EFAULT; - - /* -@@ -1348,7 +1353,7 @@ static int futex_wait(u32 __user *uaddr, - struct restart_block *restart; - restart = ¤t_thread_info()->restart_block; - restart->fn = futex_wait_restart; -- restart->futex.uaddr = (u32 *)uaddr; -+ restart->futex.uaddr = uaddr; - restart->futex.val = val; - restart->futex.time = abs_time->tv64; - restart->futex.bitset = bitset; -@@ -1908,7 +1913,7 @@ retry: - */ - static inline int fetch_robust_entry(struct robust_list __user **entry, - struct robust_list __user * __user *head, -- int *pi) -+ unsigned int *pi) - { - unsigned long uentry; - -diff -urNp linux-2.6.28.8/kernel/irq/handle.c linux-2.6.28.8/kernel/irq/handle.c ---- linux-2.6.28.8/kernel/irq/handle.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/kernel/irq/handle.c 2009-02-21 09:37:49.000000000 -0500 -@@ -57,7 +57,8 @@ struct irq_desc irq_desc[NR_IRQS] __cach - .depth = 1, - .lock = __SPIN_LOCK_UNLOCKED(irq_desc->lock), - #ifdef CONFIG_SMP -- .affinity = CPU_MASK_ALL -+ .affinity = CPU_MASK_ALL, -+ .cpu = 0, - #endif - } - }; -diff -urNp linux-2.6.28.8/kernel/kallsyms.c linux-2.6.28.8/kernel/kallsyms.c ---- linux-2.6.28.8/kernel/kallsyms.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/kernel/kallsyms.c 2009-02-21 09:37:49.000000000 -0500 -@@ -62,6 +62,18 @@ static inline int is_kernel_text(unsigne - - static inline int is_kernel(unsigned long addr) - { -+ -+#if defined(CONFIG_PAX_KERNEXEC) && defined(CONFIG_MODULES) -+ if ((unsigned long)MODULES_VADDR <= ktla_ktva(addr) && -+ ktla_ktva(addr) < (unsigned long)MODULES_END) -+ return 0; -+#endif -+ -+#ifdef CONFIG_X86_32 -+ if (is_kernel_inittext(addr)) -+ return 1; -+#endif -+ - if (addr >= (unsigned long)_stext && addr <= (unsigned long)_end) - return 1; - return in_gate_area_no_task(addr); -@@ -372,7 +384,6 @@ static unsigned long get_ksymbol_core(st - - static void reset_iter(struct kallsym_iter *iter, loff_t new_pos) - { -- iter->name[0] = '\0'; - iter->nameoff = get_symbol_offset(new_pos); - iter->pos = new_pos; - } -@@ -456,7 +467,7 @@ static int kallsyms_open(struct inode *i - struct kallsym_iter *iter; - int ret; - -- iter = kmalloc(sizeof(*iter), GFP_KERNEL); -+ iter = kzalloc(sizeof(*iter), GFP_KERNEL); - if (!iter) - return -ENOMEM; - reset_iter(iter, 0); -@@ -478,7 +489,15 @@ static const struct file_operations kall - - static int __init kallsyms_init(void) - { -+#ifdef CONFIG_GRKERNSEC_PROC_ADD -+#ifdef CONFIG_GRKERNSEC_PROC_USER -+ proc_create("kallsyms", S_IFREG | S_IRUSR, NULL, &kallsyms_operations); -+#elif defined(CONFIG_GRKERNSEC_PROC_USERGROUP) -+ proc_create("kallsyms", S_IFREG | S_IRUSR | S_IRGRP, NULL, &kallsyms_operations); -+#endif -+#else - proc_create("kallsyms", 0444, NULL, &kallsyms_operations); -+#endif - return 0; - } - __initcall(kallsyms_init); -diff -urNp linux-2.6.28.8/kernel/kmod.c linux-2.6.28.8/kernel/kmod.c ---- linux-2.6.28.8/kernel/kmod.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/kernel/kmod.c 2009-02-21 09:37:49.000000000 -0500 -@@ -108,7 +108,7 @@ int request_module(const char *fmt, ...) - return -ENOMEM; - } - -- ret = call_usermodehelper(modprobe_path, argv, envp, 1); -+ ret = call_usermodehelper(modprobe_path, argv, envp, UMH_WAIT_PROC); - atomic_dec(&kmod_concurrent); - return ret; - } -diff -urNp linux-2.6.28.8/kernel/kprobes.c linux-2.6.28.8/kernel/kprobes.c ---- linux-2.6.28.8/kernel/kprobes.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/kernel/kprobes.c 2009-02-21 09:37:49.000000000 -0500 -@@ -182,7 +182,7 @@ kprobe_opcode_t __kprobes *get_insn_slot - * kernel image and loaded module images reside. This is required - * so x86_64 can correctly handle the %rip-relative fixups. - */ -- kip->insns = module_alloc(PAGE_SIZE); -+ kip->insns = module_alloc_exec(PAGE_SIZE); - if (!kip->insns) { - kfree(kip); - return NULL; -@@ -214,7 +214,7 @@ static int __kprobes collect_one_slot(st - hlist_add_head(&kip->hlist, - &kprobe_insn_pages); - } else { -- module_free(NULL, kip->insns); -+ module_free_exec(NULL, kip->insns); - kfree(kip); - } - return 1; -diff -urNp linux-2.6.28.8/kernel/lockdep.c linux-2.6.28.8/kernel/lockdep.c ---- linux-2.6.28.8/kernel/lockdep.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/kernel/lockdep.c 2009-02-21 09:37:49.000000000 -0500 -@@ -627,6 +627,10 @@ static int static_obj(void *obj) - int i; - #endif - -+#ifdef CONFIG_PAX_KERNEXEC -+ start = (unsigned long )&_data; -+#endif -+ - /* - * static variable? - */ -@@ -638,9 +642,12 @@ static int static_obj(void *obj) - * percpu var? - */ - for_each_possible_cpu(i) { -+#ifdef CONFIG_X86_32 -+ start = per_cpu_offset(i); -+#else - start = (unsigned long) &__per_cpu_start + per_cpu_offset(i); -- end = (unsigned long) &__per_cpu_start + PERCPU_ENOUGH_ROOM -- + per_cpu_offset(i); -+#endif -+ end = start + PERCPU_ENOUGH_ROOM; - - if ((addr >= start) && (addr < end)) - return 1; -diff -urNp linux-2.6.28.8/kernel/module.c linux-2.6.28.8/kernel/module.c ---- linux-2.6.28.8/kernel/module.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/kernel/module.c 2009-02-21 09:37:50.000000000 -0500 -@@ -47,6 +47,11 @@ - #include <linux/rculist.h> - #include <asm/uaccess.h> - #include <asm/cacheflush.h> -+ -+#ifdef CONFIG_PAX_KERNEXEC -+#include <asm/desc.h> -+#endif -+ - #include <linux/license.h> - #include <asm/sections.h> - #include <linux/tracepoint.h> -@@ -76,7 +81,10 @@ static DECLARE_WAIT_QUEUE_HEAD(module_wq - static BLOCKING_NOTIFIER_HEAD(module_notify_list); - - /* Bounds of module allocation, for speeding __module_text_address */ --static unsigned long module_addr_min = -1UL, module_addr_max = 0; -+static unsigned long module_addr_min_rw = -1UL, module_addr_max_rw = 0; -+static unsigned long module_addr_min_rx = -1UL, module_addr_max_rx = 0; -+ -+extern int gr_check_modstop(void); - - int register_module_notifier(struct notifier_block * nb) - { -@@ -245,7 +253,7 @@ static bool each_symbol(bool (*fn)(const - return true; - - list_for_each_entry_rcu(mod, &modules, list) { -- struct symsearch arr[] = { -+ struct symsearch modarr[] = { - { mod->syms, mod->syms + mod->num_syms, mod->crcs, - NOT_GPL_ONLY, false }, - { mod->gpl_syms, mod->gpl_syms + mod->num_gpl_syms, -@@ -267,7 +275,7 @@ static bool each_symbol(bool (*fn)(const - #endif - }; - -- if (each_symbol_in_section(arr, ARRAY_SIZE(arr), mod, fn, data)) -+ if (each_symbol_in_section(modarr, ARRAY_SIZE(modarr), mod, fn, data)) - return true; - } - return false; -@@ -403,6 +411,8 @@ static inline unsigned int block_size(in - return val; - } - -+EXPORT_SYMBOL(__per_cpu_start); -+ - static void *percpu_modalloc(unsigned long size, unsigned long align, - const char *name) - { -@@ -410,7 +420,7 @@ static void *percpu_modalloc(unsigned lo - unsigned int i; - void *ptr; - -- if (align > PAGE_SIZE) { -+ if (align-1 >= PAGE_SIZE) { - printk(KERN_WARNING "%s: per-cpu alignment %li > %li\n", - name, align, PAGE_SIZE); - align = PAGE_SIZE; -@@ -492,7 +502,11 @@ static void percpu_modcopy(void *pcpudes - int cpu; - - for_each_possible_cpu(cpu) -+#ifdef CONFIG_X86_32 -+ memcpy(pcpudest + __per_cpu_offset[cpu], from, size); -+#else - memcpy(pcpudest + per_cpu_offset(cpu), from, size); -+#endif - } - - static int percpu_modinit(void) -@@ -750,6 +764,9 @@ SYSCALL_DEFINE2(delete_module, const cha - char name[MODULE_NAME_LEN]; - int ret, forced = 0; - -+ if (gr_check_modstop()) -+ return -EPERM; -+ - if (!capable(CAP_SYS_MODULE)) - return -EPERM; - -@@ -1448,19 +1465,22 @@ static void free_module(struct module *m - module_unload_free(mod); - - /* release any pointers to mcount in this module */ -- ftrace_release(mod->module_core, mod->core_size); -+ ftrace_release(mod->module_core_rx, mod->core_size_rx); - - /* This may be NULL, but that's OK */ -- module_free(mod, mod->module_init); -+ module_free(mod, mod->module_init_rw); -+ module_free_exec(mod, mod->module_init_rx); - kfree(mod->args); - if (mod->percpu) - percpu_modfree(mod->percpu); - - /* Free lock-classes: */ -- lockdep_free_key_range(mod->module_core, mod->core_size); -+ lockdep_free_key_range(mod->module_core_rx, mod->core_size_rx); -+ lockdep_free_key_range(mod->module_core_rw, mod->core_size_rw); - - /* Finally, free the core (containing the module structure) */ -- module_free(mod, mod->module_core); -+ module_free_exec(mod, mod->module_core_rx); -+ module_free(mod, mod->module_core_rw); - } - - void *__symbol_get(const char *symbol) -@@ -1526,10 +1546,14 @@ static int simplify_symbols(Elf_Shdr *se - struct module *mod) - { - Elf_Sym *sym = (void *)sechdrs[symindex].sh_addr; -- unsigned long secbase; -+ unsigned long secbase, symbol; - unsigned int i, n = sechdrs[symindex].sh_size / sizeof(Elf_Sym); - int ret = 0; - -+#ifdef CONFIG_PAX_KERNEXEC -+ unsigned long cr0; -+#endif -+ - for (i = 1; i < n; i++) { - switch (sym[i].st_shndx) { - case SHN_COMMON: -@@ -1548,10 +1572,19 @@ static int simplify_symbols(Elf_Shdr *se - break; - - case SHN_UNDEF: -- sym[i].st_value -- = resolve_symbol(sechdrs, versindex, -+ symbol = resolve_symbol(sechdrs, versindex, - strtab + sym[i].st_name, mod); - -+#ifdef CONFIG_PAX_KERNEXEC -+ pax_open_kernel(cr0); -+#endif -+ -+ sym[i].st_value = symbol; -+ -+#ifdef CONFIG_PAX_KERNEXEC -+ pax_close_kernel(cr0); -+#endif -+ - /* Ok if resolved. */ - if (!IS_ERR_VALUE(sym[i].st_value)) - break; -@@ -1566,11 +1599,27 @@ static int simplify_symbols(Elf_Shdr *se - - default: - /* Divert to percpu allocation if a percpu var. */ -- if (sym[i].st_shndx == pcpuindex) -+ if (sym[i].st_shndx == pcpuindex) { -+ -+#if defined(CONFIG_X86_32) && defined(CONFIG_SMP) -+ secbase = (unsigned long)mod->percpu - (unsigned long)__per_cpu_start; -+#else - secbase = (unsigned long)mod->percpu; -- else -+#endif -+ -+ } else - secbase = sechdrs[sym[i].st_shndx].sh_addr; -+ -+#ifdef CONFIG_PAX_KERNEXEC -+ pax_open_kernel(cr0); -+#endif -+ - sym[i].st_value += secbase; -+ -+#ifdef CONFIG_PAX_KERNEXEC -+ pax_close_kernel(cr0); -+#endif -+ - break; - } - } -@@ -1622,11 +1671,12 @@ static void layout_sections(struct modul - || strncmp(secstrings + s->sh_name, - ".init", 5) == 0) - continue; -- s->sh_entsize = get_offset(&mod->core_size, s); -+ if ((s->sh_flags & SHF_WRITE) || !(s->sh_flags & SHF_ALLOC)) -+ s->sh_entsize = get_offset(&mod->core_size_rw, s); -+ else -+ s->sh_entsize = get_offset(&mod->core_size_rx, s); - DEBUGP("\t%s\n", secstrings + s->sh_name); - } -- if (m == 0) -- mod->core_text_size = mod->core_size; - } - - DEBUGP("Init section allocation order:\n"); -@@ -1640,12 +1690,13 @@ static void layout_sections(struct modul - || strncmp(secstrings + s->sh_name, - ".init", 5) != 0) - continue; -- s->sh_entsize = (get_offset(&mod->init_size, s) -- | INIT_OFFSET_MASK); -+ if ((s->sh_flags & SHF_WRITE) || !(s->sh_flags & SHF_ALLOC)) -+ s->sh_entsize = get_offset(&mod->init_size_rw, s); -+ else -+ s->sh_entsize = get_offset(&mod->init_size_rx, s); -+ s->sh_entsize |= INIT_OFFSET_MASK; - DEBUGP("\t%s\n", secstrings + s->sh_name); - } -- if (m == 0) -- mod->init_text_size = mod->init_size; - } - } - -@@ -1785,14 +1836,31 @@ static void add_kallsyms(struct module * - { - unsigned int i; - -+#ifdef CONFIG_PAX_KERNEXEC -+ unsigned long cr0; -+#endif -+ - mod->symtab = (void *)sechdrs[symindex].sh_addr; - mod->num_symtab = sechdrs[symindex].sh_size / sizeof(Elf_Sym); - mod->strtab = (void *)sechdrs[strindex].sh_addr; - - /* Set types up while we still have access to sections. */ -- for (i = 0; i < mod->num_symtab; i++) -- mod->symtab[i].st_info -- = elf_type(&mod->symtab[i], sechdrs, secstrings, mod); -+ -+ for (i = 0; i < mod->num_symtab; i++) { -+ char type = elf_type(&mod->symtab[i], sechdrs, secstrings, mod); -+ -+#ifdef CONFIG_PAX_KERNEXEC -+ pax_open_kernel(cr0); -+#endif -+ -+ mod->symtab[i].st_info = type; -+ -+#ifdef CONFIG_PAX_KERNEXEC -+ pax_close_kernel(cr0); -+#endif -+ -+ } -+ - } - #else - static inline void add_kallsyms(struct module *mod, -@@ -1819,16 +1887,30 @@ static void dynamic_printk_setup(struct - #endif /* CONFIG_DYNAMIC_PRINTK_DEBUG */ - } - --static void *module_alloc_update_bounds(unsigned long size) -+static void *module_alloc_update_bounds_rw(unsigned long size) - { - void *ret = module_alloc(size); - - if (ret) { - /* Update module bounds. */ -- if ((unsigned long)ret < module_addr_min) -- module_addr_min = (unsigned long)ret; -- if ((unsigned long)ret + size > module_addr_max) -- module_addr_max = (unsigned long)ret + size; -+ if ((unsigned long)ret < module_addr_min_rw) -+ module_addr_min_rw = (unsigned long)ret; -+ if ((unsigned long)ret + size > module_addr_max_rw) -+ module_addr_max_rw = (unsigned long)ret + size; -+ } -+ return ret; -+} -+ -+static void *module_alloc_update_bounds_rx(unsigned long size) -+{ -+ void *ret = module_alloc_exec(size); -+ -+ if (ret) { -+ /* Update module bounds. */ -+ if ((unsigned long)ret < module_addr_min_rx) -+ module_addr_min_rx = (unsigned long)ret; -+ if ((unsigned long)ret + size > module_addr_max_rx) -+ module_addr_max_rx = (unsigned long)ret + size; - } - return ret; - } -@@ -1856,6 +1938,10 @@ static noinline struct module *load_modu - unsigned long *mseg; - mm_segment_t old_fs; - -+#ifdef CONFIG_PAX_KERNEXEC -+ unsigned long cr0; -+#endif -+ - DEBUGP("load_module: umod=%p, len=%lu, uargs=%p\n", - umod, len, uargs); - if (len < sizeof(*hdr)) -@@ -2010,22 +2096,57 @@ static noinline struct module *load_modu - layout_sections(mod, hdr, sechdrs, secstrings); - - /* Do the allocs. */ -- ptr = module_alloc_update_bounds(mod->core_size); -+ ptr = module_alloc_update_bounds_rw(mod->core_size_rw); - if (!ptr) { - err = -ENOMEM; - goto free_percpu; - } -- memset(ptr, 0, mod->core_size); -- mod->module_core = ptr; -+ memset(ptr, 0, mod->core_size_rw); -+ mod->module_core_rw = ptr; - -- ptr = module_alloc_update_bounds(mod->init_size); -- if (!ptr && mod->init_size) { -+ ptr = module_alloc_update_bounds_rw(mod->init_size_rw); -+ if (!ptr && mod->init_size_rw) { - err = -ENOMEM; -- goto free_core; -+ goto free_core_rw; - } -- memset(ptr, 0, mod->init_size); -- mod->module_init = ptr; -+ memset(ptr, 0, mod->init_size_rw); -+ mod->module_init_rw = ptr; -+ -+ ptr = module_alloc_update_bounds_rx(mod->core_size_rx); -+ if (!ptr) { -+ err = -ENOMEM; -+ goto free_init_rw; -+ } -+ -+#ifdef CONFIG_PAX_KERNEXEC -+ pax_open_kernel(cr0); -+#endif - -+ memset(ptr, 0, mod->core_size_rx); -+ -+#ifdef CONFIG_PAX_KERNEXEC -+ pax_close_kernel(cr0); -+#endif -+ -+ mod->module_core_rx = ptr; -+ -+ ptr = module_alloc_update_bounds_rx(mod->init_size_rx); -+ if (!ptr && mod->init_size_rx) { -+ err = -ENOMEM; -+ goto free_core_rx; -+ } -+ -+#ifdef CONFIG_PAX_KERNEXEC -+ pax_open_kernel(cr0); -+#endif -+ -+ memset(ptr, 0, mod->init_size_rx); -+ -+#ifdef CONFIG_PAX_KERNEXEC -+ pax_close_kernel(cr0); -+#endif -+ -+ mod->module_init_rx = ptr; - /* Transfer each section which specifies SHF_ALLOC */ - DEBUGP("final section addresses:\n"); - for (i = 0; i < hdr->e_shnum; i++) { -@@ -2034,17 +2155,41 @@ static noinline struct module *load_modu - if (!(sechdrs[i].sh_flags & SHF_ALLOC)) - continue; - -- if (sechdrs[i].sh_entsize & INIT_OFFSET_MASK) -- dest = mod->module_init -- + (sechdrs[i].sh_entsize & ~INIT_OFFSET_MASK); -- else -- dest = mod->module_core + sechdrs[i].sh_entsize; -+ if (sechdrs[i].sh_entsize & INIT_OFFSET_MASK) { -+ if ((sechdrs[i].sh_flags & SHF_WRITE) || !(sechdrs[i].sh_flags & SHF_ALLOC)) -+ dest = mod->module_init_rw -+ + (sechdrs[i].sh_entsize & ~INIT_OFFSET_MASK); -+ else -+ dest = mod->module_init_rx -+ + (sechdrs[i].sh_entsize & ~INIT_OFFSET_MASK); -+ } else { -+ if ((sechdrs[i].sh_flags & SHF_WRITE) || !(sechdrs[i].sh_flags & SHF_ALLOC)) -+ dest = mod->module_core_rw + sechdrs[i].sh_entsize; -+ else -+ dest = mod->module_core_rx + sechdrs[i].sh_entsize; -+ } -+ -+ if (sechdrs[i].sh_type != SHT_NOBITS) { - -- if (sechdrs[i].sh_type != SHT_NOBITS) -- memcpy(dest, (void *)sechdrs[i].sh_addr, -- sechdrs[i].sh_size); -+#ifdef CONFIG_PAX_KERNEXEC -+ if (!(sechdrs[i].sh_flags & SHF_WRITE) && (sechdrs[i].sh_flags & SHF_ALLOC)) { -+ pax_open_kernel(cr0); -+ memcpy(dest, (void *)sechdrs[i].sh_addr, sechdrs[i].sh_size); -+ pax_close_kernel(cr0); -+ } else -+#endif -+ -+ memcpy(dest, (void *)sechdrs[i].sh_addr, sechdrs[i].sh_size); -+ } - /* Update sh_addr to point to copy in image. */ -- sechdrs[i].sh_addr = (unsigned long)dest; -+ -+#ifdef CONFIG_PAX_KERNEXEC -+ if (sechdrs[i].sh_flags & SHF_EXECINSTR) -+ sechdrs[i].sh_addr = ktva_ktla((unsigned long)dest); -+ else -+#endif -+ -+ sechdrs[i].sh_addr = (unsigned long)dest; - DEBUGP("\t0x%lx %s\n", sechdrs[i].sh_addr, secstrings + sechdrs[i].sh_name); - } - /* Module has been moved. */ -@@ -2144,8 +2289,8 @@ static noinline struct module *load_modu - - /* Now do relocations. */ - for (i = 1; i < hdr->e_shnum; i++) { -- const char *strtab = (char *)sechdrs[strindex].sh_addr; - unsigned int info = sechdrs[i].sh_info; -+ strtab = (char *)sechdrs[strindex].sh_addr; - - /* Not a valid relocation section? */ - if (info >= hdr->e_shnum) -@@ -2216,12 +2361,12 @@ static noinline struct module *load_modu - * Do it before processing of module parameters, so the module - * can provide parameter accessor functions of its own. - */ -- if (mod->module_init) -- flush_icache_range((unsigned long)mod->module_init, -- (unsigned long)mod->module_init -- + mod->init_size); -- flush_icache_range((unsigned long)mod->module_core, -- (unsigned long)mod->module_core + mod->core_size); -+ if (mod->module_init_rx) -+ flush_icache_range((unsigned long)mod->module_init_rx, -+ (unsigned long)mod->module_init_rx -+ + mod->init_size_rx); -+ flush_icache_range((unsigned long)mod->module_core_rx, -+ (unsigned long)mod->module_core_rx + mod->core_size_rx); - - set_fs(old_fs); - -@@ -2266,12 +2411,16 @@ static noinline struct module *load_modu - cleanup: - kobject_del(&mod->mkobj.kobj); - kobject_put(&mod->mkobj.kobj); -- ftrace_release(mod->module_core, mod->core_size); -+ ftrace_release(mod->module_core_rx, mod->core_size_rx); - free_unload: - module_unload_free(mod); -- module_free(mod, mod->module_init); -- free_core: -- module_free(mod, mod->module_core); -+ module_free_exec(mod, mod->module_init_rx); -+ free_core_rx: -+ module_free_exec(mod, mod->module_core_rx); -+ free_init_rw: -+ module_free(mod, mod->module_init_rw); -+ free_core_rw: -+ module_free(mod, mod->module_core_rw); - free_percpu: - if (percpu) - percpu_modfree(percpu); -@@ -2294,6 +2443,9 @@ SYSCALL_DEFINE3(init_module, void __user - struct module *mod; - int ret = 0; - -+ if (gr_check_modstop()) -+ return -EPERM; -+ - /* Must have permission */ - if (!capable(CAP_SYS_MODULE)) - return -EPERM; -@@ -2349,10 +2501,12 @@ SYSCALL_DEFINE3(init_module, void __user - /* Drop initial reference. */ - module_put(mod); - unwind_remove_table(mod->unwind_info, 1); -- module_free(mod, mod->module_init); -- mod->module_init = NULL; -- mod->init_size = 0; -- mod->init_text_size = 0; -+ module_free(mod, mod->module_init_rw); -+ module_free_exec(mod, mod->module_init_rx); -+ mod->module_init_rw = NULL; -+ mod->module_init_rx = NULL; -+ mod->init_size_rw = 0; -+ mod->init_size_rx = 0; - mutex_unlock(&module_mutex); - - return 0; -@@ -2360,6 +2514,13 @@ SYSCALL_DEFINE3(init_module, void __user - - static inline int within(unsigned long addr, void *start, unsigned long size) - { -+ -+#ifdef CONFIG_PAX_KERNEXEC -+ if (ktla_ktva(addr) >= (unsigned long)start && -+ ktla_ktva(addr) < (unsigned long)start + size) -+ return 1; -+#endif -+ - return ((void *)addr >= start && (void *)addr < start + size); - } - -@@ -2383,10 +2544,14 @@ static const char *get_ksymbol(struct mo - unsigned long nextval; - - /* At worse, next value is at end of module */ -- if (within(addr, mod->module_init, mod->init_size)) -- nextval = (unsigned long)mod->module_init+mod->init_text_size; -+ if (within(addr, mod->module_init_rx, mod->init_size_rx)) -+ nextval = (unsigned long)mod->module_init_rx+mod->init_size_rx; -+ else if (within(addr, mod->module_init_rw, mod->init_size_rw)) -+ nextval = (unsigned long)mod->module_init_rw+mod->init_size_rw; -+ else if (within(addr, mod->module_core_rx, mod->core_size_rx)) -+ nextval = (unsigned long)mod->module_core_rx+mod->core_size_rx; - else -- nextval = (unsigned long)mod->module_core+mod->core_text_size; -+ nextval = (unsigned long)mod->module_core_rw+mod->core_size_rw; - - /* Scan for closest preceeding symbol, and next symbol. (ELF - starts real symbols at 1). */ -@@ -2431,8 +2596,10 @@ const char *module_address_lookup(unsign - - preempt_disable(); - list_for_each_entry_rcu(mod, &modules, list) { -- if (within(addr, mod->module_init, mod->init_size) -- || within(addr, mod->module_core, mod->core_size)) { -+ if (within(addr, mod->module_init_rx, mod->init_size_rx) || -+ within(addr, mod->module_init_rw, mod->init_size_rw) || -+ within(addr, mod->module_core_rx, mod->core_size_rx) || -+ within(addr, mod->module_core_rw, mod->core_size_rw)) { - if (modname) - *modname = mod->name; - ret = get_ksymbol(mod, addr, size, offset); -@@ -2454,8 +2621,10 @@ int lookup_module_symbol_name(unsigned l - - preempt_disable(); - list_for_each_entry_rcu(mod, &modules, list) { -- if (within(addr, mod->module_init, mod->init_size) || -- within(addr, mod->module_core, mod->core_size)) { -+ if (within(addr, mod->module_init_rx, mod->init_size_rx) || -+ within(addr, mod->module_init_rw, mod->init_size_rw) || -+ within(addr, mod->module_core_rx, mod->core_size_rx) || -+ within(addr, mod->module_core_rw, mod->core_size_rw)) { - const char *sym; - - sym = get_ksymbol(mod, addr, NULL, NULL); -@@ -2478,8 +2647,10 @@ int lookup_module_symbol_attrs(unsigned - - preempt_disable(); - list_for_each_entry_rcu(mod, &modules, list) { -- if (within(addr, mod->module_init, mod->init_size) || -- within(addr, mod->module_core, mod->core_size)) { -+ if (within(addr, mod->module_init_rx, mod->init_size_rx) || -+ within(addr, mod->module_init_rw, mod->init_size_rw) || -+ within(addr, mod->module_core_rx, mod->core_size_rx) || -+ within(addr, mod->module_core_rw, mod->core_size_rw)) { - const char *sym; - - sym = get_ksymbol(mod, addr, size, offset); -@@ -2613,7 +2784,7 @@ static int m_show(struct seq_file *m, vo - char buf[8]; - - seq_printf(m, "%s %u", -- mod->name, mod->init_size + mod->core_size); -+ mod->name, mod->init_size_rx + mod->init_size_rw + mod->core_size_rx + mod->core_size_rw); - print_unload_info(m, mod); - - /* Informative for users. */ -@@ -2622,7 +2793,7 @@ static int m_show(struct seq_file *m, vo - mod->state == MODULE_STATE_COMING ? "Loading": - "Live"); - /* Used by oprofile and other similar tools. */ -- seq_printf(m, " 0x%p", mod->module_core); -+ seq_printf(m, " 0x%p 0x%p", mod->module_core_rx, mod->module_core_rw); - - /* Taints info */ - if (mod->taints) -@@ -2698,8 +2869,8 @@ int is_module_address(unsigned long addr - preempt_disable(); - - list_for_each_entry_rcu(mod, &modules, list) { -- if (within(addr, mod->module_core, mod->core_size)) { -- preempt_enable(); -+ if (within(addr, mod->module_core_rx, mod->core_size_rx) || -+ within(addr, mod->module_core_rw, mod->core_size_rw)) { - return 1; - } - } -@@ -2715,12 +2886,16 @@ struct module *__module_text_address(uns - { - struct module *mod; - -- if (addr < module_addr_min || addr > module_addr_max) -+#ifdef CONFIG_X86_32 -+ addr = ktla_ktva(addr); -+#endif -+ -+ if (addr < module_addr_min_rx || addr > module_addr_max_rx) - return NULL; - - list_for_each_entry_rcu(mod, &modules, list) -- if (within(addr, mod->module_init, mod->init_text_size) -- || within(addr, mod->module_core, mod->core_text_size)) -+ if (within(addr, mod->module_init_rx, mod->init_size_rx) -+ || within(addr, mod->module_core_rx, mod->core_size_rx)) - return mod; - return NULL; - } -diff -urNp linux-2.6.28.8/kernel/mutex.c linux-2.6.28.8/kernel/mutex.c ---- linux-2.6.28.8/kernel/mutex.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/kernel/mutex.c 2009-02-21 09:37:50.000000000 -0500 -@@ -83,7 +83,7 @@ __mutex_lock_slowpath(atomic_t *lock_cou - * - * This function is similar to (but not equivalent to) down(). - */ --void inline __sched mutex_lock(struct mutex *lock) -+inline void __sched mutex_lock(struct mutex *lock) - { - might_sleep(); - /* -diff -urNp linux-2.6.28.8/kernel/panic.c linux-2.6.28.8/kernel/panic.c ---- linux-2.6.28.8/kernel/panic.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/kernel/panic.c 2009-02-21 09:37:50.000000000 -0500 -@@ -367,6 +367,8 @@ EXPORT_SYMBOL(warn_slowpath); - */ - void __stack_chk_fail(void) - { -+ print_symbol("stack corrupted in: %s\n", (unsigned long)__builtin_return_address(0)); -+ dump_stack(); - panic("stack-protector: Kernel stack is corrupted"); - } - EXPORT_SYMBOL(__stack_chk_fail); -diff -urNp linux-2.6.28.8/kernel/pid.c linux-2.6.28.8/kernel/pid.c ---- linux-2.6.28.8/kernel/pid.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/kernel/pid.c 2009-02-21 09:37:50.000000000 -0500 -@@ -33,6 +33,7 @@ - #include <linux/rculist.h> - #include <linux/bootmem.h> - #include <linux/hash.h> -+#include <linux/security.h> - #include <linux/pid_namespace.h> - #include <linux/init_task.h> - #include <linux/syscalls.h> -@@ -45,7 +46,7 @@ struct pid init_struct_pid = INIT_STRUCT - - int pid_max = PID_MAX_DEFAULT; - --#define RESERVED_PIDS 300 -+#define RESERVED_PIDS 500 - - int pid_max_min = RESERVED_PIDS + 1; - int pid_max_max = PID_MAX_LIMIT; -@@ -381,7 +382,14 @@ EXPORT_SYMBOL(pid_task); - struct task_struct *find_task_by_pid_type_ns(int type, int nr, - struct pid_namespace *ns) - { -- return pid_task(find_pid_ns(nr, ns), type); -+ struct task_struct *task; -+ -+ task = pid_task(find_pid_ns(nr, ns), type); -+ -+ if (gr_pid_is_chrooted(task)) -+ return NULL; -+ -+ return task; - } - - EXPORT_SYMBOL(find_task_by_pid_type_ns); -diff -urNp linux-2.6.28.8/kernel/posix-cpu-timers.c linux-2.6.28.8/kernel/posix-cpu-timers.c ---- linux-2.6.28.8/kernel/posix-cpu-timers.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/kernel/posix-cpu-timers.c 2009-02-21 09:37:50.000000000 -0500 -@@ -6,6 +6,7 @@ - #include <linux/posix-timers.h> - #include <linux/errno.h> - #include <linux/math64.h> -+#include <linux/security.h> - #include <asm/uaccess.h> - #include <linux/kernel_stat.h> - -@@ -1157,6 +1158,7 @@ static void check_process_timers(struct - __group_send_sig_info(SIGKILL, SEND_SIG_PRIV, tsk); - return; - } -+ gr_learn_resource(tsk, RLIMIT_CPU, psecs, 1); - if (psecs >= sig->rlim[RLIMIT_CPU].rlim_cur) { - /* - * At the soft limit, send a SIGXCPU every second. -@@ -1381,17 +1383,17 @@ void run_posix_cpu_timers(struct task_st - * timer call will interfere. - */ - list_for_each_entry_safe(timer, next, &firing, it.cpu.entry) { -- int firing; -+ int __firing; - spin_lock(&timer->it_lock); - list_del_init(&timer->it.cpu.entry); -- firing = timer->it.cpu.firing; -+ __firing = timer->it.cpu.firing; - timer->it.cpu.firing = 0; - /* - * The firing flag is -1 if we collided with a reset - * of the timer, which already reported this - * almost-firing as an overrun. So don't generate an event. - */ -- if (likely(firing >= 0)) { -+ if (likely(__firing >= 0)) { - cpu_timer_fire(timer); - } - spin_unlock(&timer->it_lock); -diff -urNp linux-2.6.28.8/kernel/power/poweroff.c linux-2.6.28.8/kernel/power/poweroff.c ---- linux-2.6.28.8/kernel/power/poweroff.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/kernel/power/poweroff.c 2009-02-21 09:37:50.000000000 -0500 -@@ -37,7 +37,7 @@ static struct sysrq_key_op sysrq_powerof - .enable_mask = SYSRQ_ENABLE_BOOT, - }; - --static int pm_sysrq_init(void) -+static int __init pm_sysrq_init(void) - { - register_sysrq_key('o', &sysrq_poweroff_op); - return 0; -diff -urNp linux-2.6.28.8/kernel/printk.c linux-2.6.28.8/kernel/printk.c ---- linux-2.6.28.8/kernel/printk.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/kernel/printk.c 2009-02-21 09:37:50.000000000 -0500 -@@ -254,6 +254,11 @@ int do_syslog(int type, char __user *buf - char c; - int error = 0; - -+#ifdef CONFIG_GRKERNSEC_DMESG -+ if (grsec_enable_dmesg && !capable(CAP_SYS_ADMIN)) -+ return -EPERM; -+#endif -+ - error = security_syslog(type); - if (error) - return error; -diff -urNp linux-2.6.28.8/kernel/ptrace.c linux-2.6.28.8/kernel/ptrace.c ---- linux-2.6.28.8/kernel/ptrace.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/kernel/ptrace.c 2009-02-21 09:37:50.000000000 -0500 -@@ -132,12 +132,12 @@ int __ptrace_may_access(struct task_stru - (current->uid != task->uid) || - (current->gid != task->egid) || - (current->gid != task->sgid) || -- (current->gid != task->gid)) && !capable(CAP_SYS_PTRACE)) -+ (current->gid != task->gid)) && !capable_nolog(CAP_SYS_PTRACE)) - return -EPERM; - smp_rmb(); - if (task->mm) - dumpable = get_dumpable(task->mm); -- if (!dumpable && !capable(CAP_SYS_PTRACE)) -+ if (!dumpable && !capable_nolog(CAP_SYS_PTRACE)) - return -EPERM; - - return security_ptrace_may_access(task, mode); -@@ -193,7 +193,7 @@ repeat: - - /* Go */ - task->ptrace |= PT_PTRACED; -- if (capable(CAP_SYS_PTRACE)) -+ if (capable_nolog(CAP_SYS_PTRACE)) - task->ptrace |= PT_PTRACE_CAP; - - __ptrace_link(task, current); -@@ -582,6 +582,11 @@ SYSCALL_DEFINE4(ptrace, long, request, l - if (ret < 0) - goto out_put_task_struct; - -+ if (gr_handle_ptrace(child, request)) { -+ ret = -EPERM; -+ goto out_put_task_struct; -+ } -+ - ret = arch_ptrace(child, request, addr, data); - if (ret < 0) - goto out_put_task_struct; -diff -urNp linux-2.6.28.8/kernel/relay.c linux-2.6.28.8/kernel/relay.c ---- linux-2.6.28.8/kernel/relay.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/kernel/relay.c 2009-02-21 09:37:50.000000000 -0500 -@@ -1292,7 +1292,7 @@ static int subbuf_splice_actor(struct fi - return 0; - - ret = *nonpad_ret = splice_to_pipe(pipe, &spd); -- if (ret < 0 || ret < total_len) -+ if ((int)ret < 0 || ret < total_len) - return ret; - - if (read_start + ret == nonpad_end) -diff -urNp linux-2.6.28.8/kernel/resource.c linux-2.6.28.8/kernel/resource.c ---- linux-2.6.28.8/kernel/resource.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/kernel/resource.c 2009-02-21 09:37:50.000000000 -0500 -@@ -132,8 +132,18 @@ static const struct file_operations proc - - static int __init ioresources_init(void) - { -+#ifdef CONFIG_GRKERNSEC_PROC_ADD -+#ifdef CONFIG_GRKERNSEC_PROC_USER -+ proc_create("ioports", S_IRUSR, NULL, &proc_ioports_operations); -+ proc_create("iomem", S_IRUSR, NULL, &proc_iomem_operations); -+#elif defined(CONFIG_GRKERNSEC_PROC_USERGROUP) -+ proc_create("ioports", S_IRUSR | S_IRGRP, NULL, &proc_ioports_operations); -+ proc_create("iomem", S_IRUSR | S_IRGRP, NULL, &proc_iomem_operations); -+#endif -+#else - proc_create("ioports", 0, NULL, &proc_ioports_operations); - proc_create("iomem", 0, NULL, &proc_iomem_operations); -+#endif - return 0; - } - __initcall(ioresources_init); -diff -urNp linux-2.6.28.8/kernel/sched.c linux-2.6.28.8/kernel/sched.c ---- linux-2.6.28.8/kernel/sched.c 2009-02-07 16:10:45.000000000 -0500 -+++ linux-2.6.28.8/kernel/sched.c 2009-02-21 09:37:50.000000000 -0500 -@@ -5045,7 +5045,8 @@ SYSCALL_DEFINE1(nice, int, increment) - if (nice > 19) - nice = 19; - -- if (increment < 0 && !can_nice(current, nice)) -+ if (increment < 0 && (!can_nice(current, nice) || -+ gr_handle_chroot_nice())) - return -EPERM; - - retval = security_task_setnice(current, nice); -@@ -6310,7 +6311,7 @@ static struct ctl_table sd_ctl_dir[] = { - .procname = "sched_domain", - .mode = 0555, - }, -- {0, }, -+ { 0, NULL, NULL, 0, 0, NULL, NULL, NULL, NULL, NULL, NULL } - }; - - static struct ctl_table sd_ctl_root[] = { -@@ -6320,7 +6321,7 @@ static struct ctl_table sd_ctl_root[] = - .mode = 0555, - .child = sd_ctl_dir, - }, -- {0, }, -+ { 0, NULL, NULL, 0, 0, NULL, NULL, NULL, NULL, NULL, NULL } - }; - - static struct ctl_table *sd_alloc_ctl_entry(int n) -diff -urNp linux-2.6.28.8/kernel/signal.c linux-2.6.28.8/kernel/signal.c ---- linux-2.6.28.8/kernel/signal.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/kernel/signal.c 2009-03-07 14:17:22.000000000 -0500 -@@ -596,6 +596,9 @@ static int check_kill_permission(int sig - } - } - -+ if (gr_handle_signal(t, sig)) -+ return -EPERM; -+ - return security_task_kill(t, info, sig, 0); - } - -@@ -887,8 +890,8 @@ static void print_fatal_signal(struct pt - for (i = 0; i < 16; i++) { - unsigned char insn; - -- __get_user(insn, (unsigned char *)(regs->ip + i)); -- printk("%02x ", insn); -+ if (!get_user(insn, (unsigned char __user *)(regs->ip + i))) -+ printk("%02x ", insn); - } - } - #endif -@@ -911,7 +914,7 @@ __group_send_sig_info(int sig, struct si - return send_signal(sig, info, p, 1); - } - --static int -+int - specific_send_sig_info(int sig, struct siginfo *info, struct task_struct *t) - { - return send_signal(sig, info, t, 0); -@@ -951,6 +954,9 @@ force_sig_info(int sig, struct siginfo * - ret = specific_send_sig_info(sig, info, t); - spin_unlock_irqrestore(&t->sighand->siglock, flags); - -+ gr_log_signal(sig, t); -+ gr_handle_crash(t, sig); -+ - return ret; - } - -@@ -1021,6 +1027,8 @@ int group_send_sig_info(int sig, struct - ret = __group_send_sig_info(sig, info, p); - unlock_task_sighand(p, &flags); - } -+ if (!ret) -+ gr_log_signal(sig, p); - } - - return ret; -diff -urNp linux-2.6.28.8/kernel/softirq.c linux-2.6.28.8/kernel/softirq.c ---- linux-2.6.28.8/kernel/softirq.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/kernel/softirq.c 2009-02-21 09:37:50.000000000 -0500 -@@ -463,9 +463,9 @@ void tasklet_kill(struct tasklet_struct - printk("Attempt to kill tasklet from interrupt\n"); - - while (test_and_set_bit(TASKLET_STATE_SCHED, &t->state)) { -- do -+ do { - yield(); -- while (test_bit(TASKLET_STATE_SCHED, &t->state)); -+ } while (test_bit(TASKLET_STATE_SCHED, &t->state)); - } - tasklet_unlock_wait(t); - clear_bit(TASKLET_STATE_SCHED, &t->state); -diff -urNp linux-2.6.28.8/kernel/sys.c linux-2.6.28.8/kernel/sys.c ---- linux-2.6.28.8/kernel/sys.c 2009-02-07 16:10:45.000000000 -0500 -+++ linux-2.6.28.8/kernel/sys.c 2009-02-21 09:37:50.000000000 -0500 -@@ -125,6 +125,12 @@ static int set_one_prio(struct task_stru - error = -EACCES; - goto out; - } -+ -+ if (gr_handle_chroot_setpriority(p, niceval)) { -+ error = -EACCES; -+ goto out; -+ } -+ - no_nice = security_task_setnice(p, niceval); - if (no_nice) { - error = no_nice; -@@ -181,10 +187,10 @@ SYSCALL_DEFINE3(setpriority, int, which, - if ((who != current->uid) && !(user = find_user(who))) - goto out_unlock; /* No processes for this user */ - -- do_each_thread(g, p) -+ do_each_thread(g, p) { - if (p->uid == who) - error = set_one_prio(p, niceval, error); -- while_each_thread(g, p); -+ } while_each_thread(g, p); - if (who != current->uid) - free_uid(user); /* For find_user() */ - break; -@@ -243,13 +249,13 @@ SYSCALL_DEFINE2(getpriority, int, which, - if ((who != current->uid) && !(user = find_user(who))) - goto out_unlock; /* No processes for this user */ - -- do_each_thread(g, p) -+ do_each_thread(g, p) { - if (p->uid == who) { - niceval = 20 - task_nice(p); - if (niceval > retval) - retval = niceval; - } -- while_each_thread(g, p); -+ } while_each_thread(g, p); - if (who != current->uid) - free_uid(user); /* for find_user() */ - break; -@@ -500,6 +506,10 @@ SYSCALL_DEFINE2(setregid, gid_t, rgid, g - else - return -EPERM; - } -+ -+ if (gr_check_group_change(new_rgid, new_egid, -1)) -+ return -EPERM; -+ - if (new_egid != old_egid) { - set_dumpable(current->mm, suid_dumpable); - smp_wmb(); -@@ -507,6 +517,9 @@ SYSCALL_DEFINE2(setregid, gid_t, rgid, g - if (rgid != (gid_t) -1 || - (egid != (gid_t) -1 && egid != old_rgid)) - current->sgid = new_egid; -+ -+ gr_set_role_label(current, current->uid, new_rgid); -+ - current->fsgid = new_egid; - current->egid = new_egid; - current->gid = new_rgid; -@@ -529,11 +542,17 @@ SYSCALL_DEFINE1(setgid, gid_t, gid) - if (retval) - return retval; - -+ if (gr_check_group_change(gid, gid, gid)) -+ return -EPERM; -+ - if (capable(CAP_SETGID)) { - if (old_egid != gid) { - set_dumpable(current->mm, suid_dumpable); - smp_wmb(); - } -+ -+ gr_set_role_label(current, current->uid, gid); -+ - current->gid = current->egid = current->sgid = current->fsgid = gid; - } else if ((gid == current->gid) || (gid == current->sgid)) { - if (old_egid != gid) { -@@ -571,6 +590,9 @@ static int set_user(uid_t new_ruid, int - set_dumpable(current->mm, suid_dumpable); - smp_wmb(); - } -+ -+ gr_set_role_label(current, new_ruid, current->gid); -+ - current->uid = new_ruid; - return 0; - } -@@ -620,6 +642,9 @@ SYSCALL_DEFINE2(setreuid, uid_t, ruid, u - return -EPERM; - } - -+ if (gr_check_user_change(new_ruid, new_euid, -1)) -+ return -EPERM; -+ - if (new_ruid != old_ruid && set_user(new_ruid, new_euid != old_euid) < 0) - return -EAGAIN; - -@@ -666,6 +691,12 @@ SYSCALL_DEFINE1(setuid, uid_t, uid) - old_suid = current->suid; - new_suid = old_suid; - -+ if (gr_check_crash_uid(uid)) -+ return -EPERM; -+ -+ if (gr_check_user_change(uid, uid, uid)) -+ return -EPERM; -+ - if (capable(CAP_SETUID)) { - if (uid != old_ruid && set_user(uid, old_euid != uid) < 0) - return -EAGAIN; -@@ -713,6 +744,10 @@ SYSCALL_DEFINE3(setresuid, uid_t, ruid, - (suid != current->euid) && (suid != current->suid)) - return -EPERM; - } -+ -+ if (gr_check_user_change(ruid, euid, -1)) -+ return -EPERM; -+ - if (ruid != (uid_t) -1) { - if (ruid != current->uid && set_user(ruid, euid != current->euid) < 0) - return -EAGAIN; -@@ -767,6 +802,10 @@ SYSCALL_DEFINE3(setresgid, gid_t, rgid, - (sgid != current->egid) && (sgid != current->sgid)) - return -EPERM; - } -+ -+ if (gr_check_group_change(rgid, egid, -1)) -+ return -EPERM; -+ - if (egid != (gid_t) -1) { - if (egid != current->egid) { - set_dumpable(current->mm, suid_dumpable); -@@ -775,8 +814,10 @@ SYSCALL_DEFINE3(setresgid, gid_t, rgid, - current->egid = egid; - } - current->fsgid = current->egid; -- if (rgid != (gid_t) -1) -+ if (rgid != (gid_t) -1) { -+ gr_set_role_label(current, current->uid, rgid); - current->gid = rgid; -+ } - if (sgid != (gid_t) -1) - current->sgid = sgid; - -@@ -811,6 +852,9 @@ SYSCALL_DEFINE1(setfsuid, uid_t, uid) - if (security_task_setuid(uid, (uid_t)-1, (uid_t)-1, LSM_SETID_FS)) - return old_fsuid; - -+ if (gr_check_user_change(-1, -1, uid)) -+ return old_fsuid; -+ - if (uid == current->uid || uid == current->euid || - uid == current->suid || uid == current->fsuid || - capable(CAP_SETUID)) { -@@ -843,6 +887,9 @@ SYSCALL_DEFINE1(setfsgid, gid_t, gid) - if (gid == current->gid || gid == current->egid || - gid == current->sgid || gid == current->fsgid || - capable(CAP_SETGID)) { -+ if (gr_check_group_change(-1, -1, gid)) -+ return old_fsgid; -+ - if (gid != old_fsgid) { - set_dumpable(current->mm, suid_dumpable); - smp_wmb(); -@@ -914,7 +961,10 @@ SYSCALL_DEFINE2(setpgid, pid_t, pid, pid - write_lock_irq(&tasklist_lock); - - err = -ESRCH; -- p = find_task_by_vpid(pid); -+ /* grsec: replaced find_task_by_vpid with equivalent call which -+ lacks the chroot restriction -+ */ -+ p = pid_task(find_pid_ns(pid, current->nsproxy->pid_ns), PIDTYPE_PID); - if (!p) - goto out; - -@@ -1640,7 +1690,7 @@ SYSCALL_DEFINE5(prctl, int, option, unsi - error = get_dumpable(current->mm); - break; - case PR_SET_DUMPABLE: -- if (arg2 < 0 || arg2 > 1) { -+ if (arg2 > 1) { - error = -EINVAL; - break; - } -diff -urNp linux-2.6.28.8/kernel/sysctl.c linux-2.6.28.8/kernel/sysctl.c ---- linux-2.6.28.8/kernel/sysctl.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/kernel/sysctl.c 2009-03-07 04:29:14.000000000 -0500 -@@ -61,6 +61,13 @@ - static int deprecated_sysctl_warning(struct __sysctl_args *args); - - #if defined(CONFIG_SYSCTL) -+#include <linux/grsecurity.h> -+#include <linux/grinternal.h> -+ -+extern __u32 gr_handle_sysctl(const ctl_table *table, const int op); -+extern int gr_handle_sysctl_mod(const char *dirname, const char *name, -+ const int op); -+extern int gr_handle_chroot_sysctl(const int op); - - /* External variables not in a header file. */ - extern int C_A_D; -@@ -152,6 +159,7 @@ static int proc_do_cad_pid(struct ctl_ta - static int proc_taint(struct ctl_table *table, int write, struct file *filp, - void __user *buffer, size_t *lenp, loff_t *ppos); - #endif -+extern ctl_table grsecurity_table[]; - - static struct ctl_table root_table[]; - static struct ctl_table_root sysctl_table_root; -@@ -184,6 +192,21 @@ extern struct ctl_table epoll_table[]; - int sysctl_legacy_va_layout; - #endif - -+#ifdef CONFIG_PAX_SOFTMODE -+static ctl_table pax_table[] = { -+ { -+ .ctl_name = CTL_UNNUMBERED, -+ .procname = "softmode", -+ .data = &pax_softmode, -+ .maxlen = sizeof(unsigned int), -+ .mode = 0600, -+ .proc_handler = &proc_dointvec, -+ }, -+ -+ { .ctl_name = 0 } -+}; -+#endif -+ - extern int prove_locking; - extern int lock_stat; - -@@ -856,6 +879,25 @@ static struct ctl_table kern_table[] = { - .proc_handler = &scan_unevictable_handler, - }, - #endif -+ -+#if defined(CONFIG_GRKERNSEC_SYSCTL) || defined(CONFIG_GRKERNSEC_MODSTOP) -+ { -+ .ctl_name = CTL_UNNUMBERED, -+ .procname = "grsecurity", -+ .mode = 0500, -+ .child = grsecurity_table, -+ }, -+#endif -+ -+#ifdef CONFIG_PAX_SOFTMODE -+ { -+ .ctl_name = CTL_UNNUMBERED, -+ .procname = "pax", -+ .mode = 0500, -+ .child = pax_table, -+ }, -+#endif -+ - /* - * NOTE: do not add new entries to this table unless you have read - * Documentation/sysctl/ctl_unnumbered.txt -@@ -1562,6 +1604,8 @@ static int do_sysctl_strategy(struct ctl - return 0; - } - -+static int sysctl_perm_nochk(struct ctl_table_root *root, struct ctl_table *table, int op); -+ - static int parse_table(int __user *name, int nlen, - void __user *oldval, size_t __user *oldlenp, - void __user *newval, size_t newlen, -@@ -1580,7 +1624,7 @@ repeat: - if (n == table->ctl_name) { - int error; - if (table->child) { -- if (sysctl_perm(root, table, MAY_EXEC)) -+ if (sysctl_perm_nochk(root, table, MAY_EXEC)) - return -EPERM; - name++; - nlen--; -@@ -1665,6 +1709,33 @@ int sysctl_perm(struct ctl_table_root *r - int error; - int mode; - -+ if (table->parent != NULL && table->parent->procname != NULL && -+ table->procname != NULL && -+ gr_handle_sysctl_mod(table->parent->procname, table->procname, op)) -+ return -EACCES; -+ if (gr_handle_chroot_sysctl(op)) -+ return -EACCES; -+ error = gr_handle_sysctl(table, op); -+ if (error) -+ return error; -+ -+ error = security_sysctl(table, op & (MAY_READ | MAY_WRITE | MAY_EXEC)); -+ if (error) -+ return error; -+ -+ if (root->permissions) -+ mode = root->permissions(root, current->nsproxy, table); -+ else -+ mode = table->mode; -+ -+ return test_perm(mode, op); -+} -+ -+int sysctl_perm_nochk(struct ctl_table_root *root, struct ctl_table *table, int op) -+{ -+ int error; -+ int mode; -+ - error = security_sysctl(table, op & (MAY_READ | MAY_WRITE | MAY_EXEC)); - if (error) - return error; -diff -urNp linux-2.6.28.8/kernel/time/tick-broadcast.c linux-2.6.28.8/kernel/time/tick-broadcast.c ---- linux-2.6.28.8/kernel/time/tick-broadcast.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/kernel/time/tick-broadcast.c 2009-02-21 09:37:50.000000000 -0500 -@@ -114,7 +114,7 @@ int tick_device_uses_broadcast(struct cl - * then clear the broadcast bit. - */ - if (!(dev->features & CLOCK_EVT_FEAT_C3STOP)) { -- int cpu = smp_processor_id(); -+ cpu = smp_processor_id(); - - cpu_clear(cpu, tick_broadcast_mask); - tick_broadcast_clear_oneshot(cpu); -diff -urNp linux-2.6.28.8/kernel/time.c linux-2.6.28.8/kernel/time.c ---- linux-2.6.28.8/kernel/time.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/kernel/time.c 2009-02-21 09:37:50.000000000 -0500 -@@ -92,6 +92,9 @@ SYSCALL_DEFINE1(stime, time_t __user *, - return err; - - do_settimeofday(&tv); -+ -+ gr_log_timechange(); -+ - return 0; - } - -@@ -200,6 +203,8 @@ SYSCALL_DEFINE2(settimeofday, struct tim - return -EFAULT; - } - -+ gr_log_timechange(); -+ - return do_sys_settimeofday(tv ? &new_ts : NULL, tz ? &new_tz : NULL); - } - -@@ -238,7 +243,7 @@ EXPORT_SYMBOL(current_fs_time); - * Avoid unnecessary multiplications/divisions in the - * two most common HZ cases: - */ --unsigned int inline jiffies_to_msecs(const unsigned long j) -+inline unsigned int jiffies_to_msecs(const unsigned long j) - { - #if HZ <= MSEC_PER_SEC && !(MSEC_PER_SEC % HZ) - return (MSEC_PER_SEC / HZ) * j; -@@ -254,7 +259,7 @@ unsigned int inline jiffies_to_msecs(con - } - EXPORT_SYMBOL(jiffies_to_msecs); - --unsigned int inline jiffies_to_usecs(const unsigned long j) -+inline unsigned int jiffies_to_usecs(const unsigned long j) - { - #if HZ <= USEC_PER_SEC && !(USEC_PER_SEC % HZ) - return (USEC_PER_SEC / HZ) * j; -diff -urNp linux-2.6.28.8/kernel/utsname_sysctl.c linux-2.6.28.8/kernel/utsname_sysctl.c ---- linux-2.6.28.8/kernel/utsname_sysctl.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/kernel/utsname_sysctl.c 2009-02-21 09:37:50.000000000 -0500 -@@ -123,7 +123,7 @@ static struct ctl_table uts_kern_table[] - .proc_handler = proc_do_uts_string, - .strategy = sysctl_uts_string, - }, -- {} -+ { 0, NULL, NULL, 0, 0, NULL, NULL, NULL, NULL, NULL, NULL } - }; - - static struct ctl_table uts_root_table[] = { -@@ -133,7 +133,7 @@ static struct ctl_table uts_root_table[] - .mode = 0555, - .child = uts_kern_table, - }, -- {} -+ { 0, NULL, NULL, 0, 0, NULL, NULL, NULL, NULL, NULL, NULL } - }; - - static int __init utsname_sysctl_init(void) -diff -urNp linux-2.6.28.8/lib/radix-tree.c linux-2.6.28.8/lib/radix-tree.c ---- linux-2.6.28.8/lib/radix-tree.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/lib/radix-tree.c 2009-02-21 09:37:50.000000000 -0500 -@@ -81,7 +81,7 @@ struct radix_tree_preload { - int nr; - struct radix_tree_node *nodes[RADIX_TREE_MAX_PATH]; - }; --DEFINE_PER_CPU(struct radix_tree_preload, radix_tree_preloads) = { 0, }; -+DEFINE_PER_CPU(struct radix_tree_preload, radix_tree_preloads); - - static inline gfp_t root_gfp_mask(struct radix_tree_root *root) - { -diff -urNp linux-2.6.28.8/localversion-grsec linux-2.6.28.8/localversion-grsec ---- linux-2.6.28.8/localversion-grsec 1969-12-31 19:00:00.000000000 -0500 -+++ linux-2.6.28.8/localversion-grsec 2009-02-21 09:37:50.000000000 -0500 -@@ -0,0 +1 @@ -+-grsec -diff -urNp linux-2.6.28.8/Makefile linux-2.6.28.8/Makefile ---- linux-2.6.28.8/Makefile 2009-03-07 10:24:49.000000000 -0500 -+++ linux-2.6.28.8/Makefile 2009-03-07 10:29:51.000000000 -0500 -@@ -221,7 +221,7 @@ CONFIG_SHELL := $(shell if [ -x "$$BASH" - - HOSTCC = gcc - HOSTCXX = g++ --HOSTCFLAGS = -Wall -Wstrict-prototypes -O2 -fomit-frame-pointer -+HOSTCFLAGS = -Wall -W -Wno-unused -Wno-sign-compare -Wstrict-prototypes -O2 -fomit-frame-pointer - HOSTCXXFLAGS = -O2 - - # Decide whether to build built-in, modular, or both. -@@ -619,7 +619,7 @@ export mod_strip_cmd - - - ifeq ($(KBUILD_EXTMOD),) --core-y += kernel/ mm/ fs/ ipc/ security/ crypto/ block/ -+core-y += kernel/ mm/ fs/ ipc/ security/ crypto/ block/ grsecurity/ - - vmlinux-dirs := $(patsubst %/,%,$(filter %/, $(init-y) $(init-m) \ - $(core-y) $(core-m) $(drivers-y) $(drivers-m) \ -diff -urNp linux-2.6.28.8/mm/filemap.c linux-2.6.28.8/mm/filemap.c ---- linux-2.6.28.8/mm/filemap.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/mm/filemap.c 2009-02-21 09:37:50.000000000 -0500 -@@ -1609,7 +1609,7 @@ int generic_file_mmap(struct file * file - struct address_space *mapping = file->f_mapping; - - if (!mapping->a_ops->readpage) -- return -ENOEXEC; -+ return -ENODEV; - file_accessed(file); - vma->vm_ops = &generic_file_vm_ops; - vma->vm_flags |= VM_CAN_NONLINEAR; -@@ -1970,6 +1970,7 @@ inline int generic_write_checks(struct f - *pos = i_size_read(inode); - - if (limit != RLIM_INFINITY) { -+ gr_learn_resource(current, RLIMIT_FSIZE,*pos, 0); - if (*pos >= limit) { - send_sig(SIGXFSZ, current, 0); - return -EFBIG; -diff -urNp linux-2.6.28.8/mm/fremap.c linux-2.6.28.8/mm/fremap.c ---- linux-2.6.28.8/mm/fremap.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/mm/fremap.c 2009-02-21 09:37:50.000000000 -0500 -@@ -153,6 +153,13 @@ SYSCALL_DEFINE5(remap_file_pages, unsign - retry: - vma = find_vma(mm, start); - -+#ifdef CONFIG_PAX_SEGMEXEC -+ if (vma && (mm->pax_flags & MF_PAX_SEGMEXEC) && (vma->vm_flags & VM_MAYEXEC)) { -+ up_read(&mm->mmap_sem); -+ return err; -+ } -+#endif -+ - /* - * Make sure the vma is shared, that it supports prefaulting, - * and that the remapped range is valid and fully within -diff -urNp linux-2.6.28.8/mm/hugetlb.c linux-2.6.28.8/mm/hugetlb.c ---- linux-2.6.28.8/mm/hugetlb.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/mm/hugetlb.c 2009-02-21 09:37:50.000000000 -0500 -@@ -1832,6 +1832,26 @@ static int unmap_ref_private(struct mm_s - return 1; - } - -+#ifdef CONFIG_PAX_SEGMEXEC -+static void pax_mirror_huge_pte(struct vm_area_struct *vma, unsigned long address, struct page *page_m) -+{ -+ struct mm_struct *mm = vma->vm_mm; -+ struct vm_area_struct *vma_m; -+ unsigned long address_m; -+ pte_t *ptep_m; -+ -+ vma_m = pax_find_mirror_vma(vma); -+ if (!vma_m) -+ return; -+ -+ BUG_ON(address >= SEGMEXEC_TASK_SIZE); -+ address_m = address + SEGMEXEC_TASK_SIZE; -+ ptep_m = huge_pte_offset(mm, address_m & HPAGE_MASK); -+ get_page(page_m); -+ set_huge_pte_at(mm, address_m, ptep_m, make_huge_pte(vma_m, page_m, 0)); -+} -+#endif -+ - static int hugetlb_cow(struct mm_struct *mm, struct vm_area_struct *vma, - unsigned long address, pte_t *ptep, pte_t pte, - struct page *pagecache_page) -@@ -1903,6 +1923,11 @@ retry_avoidcopy: - huge_ptep_clear_flush(vma, address, ptep); - set_huge_pte_at(mm, address, ptep, - make_huge_pte(vma, new_page, 1)); -+ -+#ifdef CONFIG_PAX_SEGMEXEC -+ pax_mirror_huge_pte(vma, address, new_page); -+#endif -+ - /* Make the old page be freed below */ - new_page = old_page; - } -@@ -2012,6 +2037,10 @@ retry: - && (vma->vm_flags & VM_SHARED))); - set_huge_pte_at(mm, address, ptep, new_pte); - -+#ifdef CONFIG_PAX_SEGMEXEC -+ pax_mirror_huge_pte(vma, address, page); -+#endif -+ - if (write_access && !(vma->vm_flags & VM_SHARED)) { - /* Optimization, do the COW without a second fault */ - ret = hugetlb_cow(mm, vma, address, ptep, new_pte, page); -@@ -2040,6 +2069,28 @@ int hugetlb_fault(struct mm_struct *mm, - static DEFINE_MUTEX(hugetlb_instantiation_mutex); - struct hstate *h = hstate_vma(vma); - -+#ifdef CONFIG_PAX_SEGMEXEC -+ struct vm_area_struct *vma_m; -+ -+ vma_m = pax_find_mirror_vma(vma); -+ if (vma_m) { -+ unsigned long address_m; -+ -+ if (vma->vm_start > vma_m->vm_start) { -+ address_m = address; -+ address -= SEGMEXEC_TASK_SIZE; -+ vma = vma_m; -+ h = hstate_vma(vma); -+ } else -+ address_m = address + SEGMEXEC_TASK_SIZE; -+ -+ if (!huge_pte_alloc(mm, address_m, huge_page_size(h))) -+ return VM_FAULT_OOM; -+ address_m &= HPAGE_MASK; -+ unmap_hugepage_range(vma, address_m, address_m + HPAGE_SIZE, NULL); -+ } -+#endif -+ - ptep = huge_pte_alloc(mm, address, huge_page_size(h)); - if (!ptep) - return VM_FAULT_OOM; -diff -urNp linux-2.6.28.8/mm/madvise.c linux-2.6.28.8/mm/madvise.c ---- linux-2.6.28.8/mm/madvise.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/mm/madvise.c 2009-02-21 09:37:50.000000000 -0500 -@@ -43,6 +43,10 @@ static long madvise_behavior(struct vm_a - pgoff_t pgoff; - int new_flags = vma->vm_flags; - -+#ifdef CONFIG_PAX_SEGMEXEC -+ struct vm_area_struct *vma_m; -+#endif -+ - switch (behavior) { - case MADV_NORMAL: - new_flags = new_flags & ~VM_RAND_READ & ~VM_SEQ_READ; -@@ -92,6 +96,13 @@ success: - /* - * vm_flags is protected by the mmap_sem held in write mode. - */ -+ -+#ifdef CONFIG_PAX_SEGMEXEC -+ vma_m = pax_find_mirror_vma(vma); -+ if (vma_m) -+ vma_m->vm_flags = new_flags & ~(VM_WRITE | VM_MAYWRITE | VM_ACCOUNT); -+#endif -+ - vma->vm_flags = new_flags; - - out: -@@ -236,6 +247,17 @@ madvise_vma(struct vm_area_struct *vma, - - case MADV_DONTNEED: - error = madvise_dontneed(vma, prev, start, end); -+ -+#ifdef CONFIG_PAX_SEGMEXEC -+ if (!error) { -+ struct vm_area_struct *vma_m, *prev_m; -+ -+ vma_m = pax_find_mirror_vma(vma); -+ if (vma_m) -+ error = madvise_dontneed(vma_m, &prev_m, start + SEGMEXEC_TASK_SIZE, end + SEGMEXEC_TASK_SIZE); -+ } -+#endif -+ - break; - - default: -@@ -308,6 +330,16 @@ SYSCALL_DEFINE3(madvise, unsigned long, - if (end < start) - goto out; - -+#ifdef CONFIG_PAX_SEGMEXEC -+ if (current->mm->pax_flags & MF_PAX_SEGMEXEC) { -+ if (end > SEGMEXEC_TASK_SIZE) -+ goto out; -+ } else -+#endif -+ -+ if (end > TASK_SIZE) -+ goto out; -+ - error = 0; - if (end == start) - goto out; -diff -urNp linux-2.6.28.8/mm/memory.c linux-2.6.28.8/mm/memory.c ---- linux-2.6.28.8/mm/memory.c 2009-02-07 16:10:45.000000000 -0500 -+++ linux-2.6.28.8/mm/memory.c 2009-02-21 09:37:50.000000000 -0500 -@@ -47,6 +47,7 @@ - #include <linux/pagemap.h> - #include <linux/rmap.h> - #include <linux/module.h> -+#include <linux/security.h> - #include <linux/delayacct.h> - #include <linux/init.h> - #include <linux/writeback.h> -@@ -1151,11 +1152,11 @@ int __get_user_pages(struct task_struct - vm_flags &= force ? (VM_MAYREAD | VM_MAYWRITE) : (VM_READ | VM_WRITE); - i = 0; - -- do { -+ while (len) { - struct vm_area_struct *vma; - unsigned int foll_flags; - -- vma = find_extend_vma(mm, start); -+ vma = find_vma(mm, start); - if (!vma && in_gate_area(tsk, start)) { - unsigned long pg = start & PAGE_MASK; - struct vm_area_struct *gate_vma = get_gate_vma(tsk); -@@ -1197,7 +1198,7 @@ int __get_user_pages(struct task_struct - continue; - } - -- if (!vma || -+ if (!vma || start < vma->vm_start || - (vma->vm_flags & (VM_IO | VM_PFNMAP)) || - (!ignore && !(vm_flags & vma->vm_flags))) - return i ? : -EFAULT; -@@ -1271,7 +1272,7 @@ int __get_user_pages(struct task_struct - start += PAGE_SIZE; - len--; - } while (len && start < vma->vm_end); -- } while (len); -+ } - return i; - } - -@@ -1760,6 +1761,186 @@ static inline void cow_user_page(struct - copy_user_highpage(dst, src, va, vma); - } - -+#ifdef CONFIG_PAX_SEGMEXEC -+static void pax_unmap_mirror_pte(struct vm_area_struct *vma, unsigned long address, pmd_t *pmd) -+{ -+ struct mm_struct *mm = vma->vm_mm; -+ spinlock_t *ptl; -+ pte_t *pte, entry; -+ -+ pte = pte_offset_map_lock(mm, pmd, address, &ptl); -+ entry = *pte; -+ if (!pte_present(entry)) { -+ if (!pte_none(entry)) { -+ BUG_ON(pte_file(entry)); -+ free_swap_and_cache(pte_to_swp_entry(entry)); -+ pte_clear_not_present_full(mm, address, pte, 0); -+ } -+ } else { -+ struct page *page; -+ -+ flush_cache_page(vma, address, pte_pfn(entry)); -+ entry = ptep_clear_flush(vma, address, pte); -+ BUG_ON(pte_dirty(entry)); -+ page = vm_normal_page(vma, address, entry); -+ if (page) { -+ update_hiwater_rss(mm); -+ if (PageAnon(page)) -+ dec_mm_counter(mm, anon_rss); -+ else -+ dec_mm_counter(mm, file_rss); -+ page_remove_rmap(page, vma); -+ page_cache_release(page); -+ } -+ } -+ pte_unmap_unlock(pte, ptl); -+} -+ -+/* PaX: if vma is mirrored, synchronize the mirror's PTE -+ * -+ * the ptl of the lower mapped page is held on entry and is not released on exit -+ * or inside to ensure atomic changes to the PTE states (swapout, mremap, munmap, etc) -+ */ -+static void pax_mirror_anon_pte(struct vm_area_struct *vma, unsigned long address, struct page *page_m, spinlock_t *ptl) -+{ -+ struct mm_struct *mm = vma->vm_mm; -+ unsigned long address_m; -+ spinlock_t *ptl_m; -+ struct vm_area_struct *vma_m; -+ pmd_t *pmd_m; -+ pte_t *pte_m, entry_m; -+ -+ BUG_ON(!page_m || !PageAnon(page_m)); -+ -+ vma_m = pax_find_mirror_vma(vma); -+ if (!vma_m) -+ return; -+ -+ BUG_ON(!PageLocked(page_m)); -+ BUG_ON(address >= SEGMEXEC_TASK_SIZE); -+ address_m = address + SEGMEXEC_TASK_SIZE; -+ pmd_m = pmd_offset(pud_offset(pgd_offset(mm, address_m), address_m), address_m); -+ pte_m = pte_offset_map_nested(pmd_m, address_m); -+ ptl_m = pte_lockptr(mm, pmd_m); -+ if (ptl != ptl_m) { -+ spin_lock_nested(ptl_m, SINGLE_DEPTH_NESTING); -+ if (!pte_none(*pte_m)) -+ goto out; -+ } -+ -+ entry_m = pfn_pte(page_to_pfn(page_m), vma_m->vm_page_prot); -+ page_cache_get(page_m); -+ page_add_anon_rmap(page_m, vma_m, address_m); -+ inc_mm_counter(mm, anon_rss); -+ set_pte_at(mm, address_m, pte_m, entry_m); -+ update_mmu_cache(vma_m, address_m, entry_m); -+out: -+ if (ptl != ptl_m) -+ spin_unlock(ptl_m); -+ pte_unmap_nested(pte_m); -+ unlock_page(page_m); -+} -+ -+void pax_mirror_file_pte(struct vm_area_struct *vma, unsigned long address, struct page *page_m, spinlock_t *ptl) -+{ -+ struct mm_struct *mm = vma->vm_mm; -+ unsigned long address_m; -+ spinlock_t *ptl_m; -+ struct vm_area_struct *vma_m; -+ pmd_t *pmd_m; -+ pte_t *pte_m, entry_m; -+ -+ BUG_ON(!page_m || PageAnon(page_m)); -+ -+ vma_m = pax_find_mirror_vma(vma); -+ if (!vma_m) -+ return; -+ -+ BUG_ON(address >= SEGMEXEC_TASK_SIZE); -+ address_m = address + SEGMEXEC_TASK_SIZE; -+ pmd_m = pmd_offset(pud_offset(pgd_offset(mm, address_m), address_m), address_m); -+ pte_m = pte_offset_map_nested(pmd_m, address_m); -+ ptl_m = pte_lockptr(mm, pmd_m); -+ if (ptl != ptl_m) { -+ spin_lock_nested(ptl_m, SINGLE_DEPTH_NESTING); -+ if (!pte_none(*pte_m)) -+ goto out; -+ } -+ -+ entry_m = pfn_pte(page_to_pfn(page_m), vma_m->vm_page_prot); -+ page_cache_get(page_m); -+ page_add_file_rmap(page_m); -+ inc_mm_counter(mm, file_rss); -+ set_pte_at(mm, address_m, pte_m, entry_m); -+ update_mmu_cache(vma_m, address_m, entry_m); -+out: -+ if (ptl != ptl_m) -+ spin_unlock(ptl_m); -+ pte_unmap_nested(pte_m); -+} -+ -+static void pax_mirror_pfn_pte(struct vm_area_struct *vma, unsigned long address, unsigned long pfn_m, spinlock_t *ptl) -+{ -+ struct mm_struct *mm = vma->vm_mm; -+ unsigned long address_m; -+ spinlock_t *ptl_m; -+ struct vm_area_struct *vma_m; -+ pmd_t *pmd_m; -+ pte_t *pte_m, entry_m; -+ -+ vma_m = pax_find_mirror_vma(vma); -+ if (!vma_m) -+ return; -+ -+ BUG_ON(address >= SEGMEXEC_TASK_SIZE); -+ address_m = address + SEGMEXEC_TASK_SIZE; -+ pmd_m = pmd_offset(pud_offset(pgd_offset(mm, address_m), address_m), address_m); -+ pte_m = pte_offset_map_nested(pmd_m, address_m); -+ ptl_m = pte_lockptr(mm, pmd_m); -+ if (ptl != ptl_m) { -+ spin_lock_nested(ptl_m, SINGLE_DEPTH_NESTING); -+ if (!pte_none(*pte_m)) -+ goto out; -+ } -+ -+ entry_m = pfn_pte(pfn_m, vma_m->vm_page_prot); -+ set_pte_at(mm, address_m, pte_m, entry_m); -+out: -+ if (ptl != ptl_m) -+ spin_unlock(ptl_m); -+ pte_unmap_nested(pte_m); -+} -+ -+static void pax_mirror_pte(struct vm_area_struct *vma, unsigned long address, pte_t *pte, pmd_t *pmd, spinlock_t *ptl) -+{ -+ struct page *page_m; -+ pte_t entry; -+ -+ if (!(vma->vm_mm->pax_flags & MF_PAX_SEGMEXEC)) -+ goto out; -+ -+ entry = *pte; -+ page_m = vm_normal_page(vma, address, entry); -+ if (!page_m) -+ pax_mirror_pfn_pte(vma, address, pte_pfn(entry), ptl); -+ else if (PageAnon(page_m)) { -+ if (pax_find_mirror_vma(vma)) { -+ pte_unmap_unlock(pte, ptl); -+ lock_page(page_m); -+ pte = pte_offset_map_lock(vma->vm_mm, pmd, address, &ptl); -+ if (pte_same(entry, *pte)) -+ pax_mirror_anon_pte(vma, address, page_m, ptl); -+ else -+ unlock_page(page_m); -+ } -+ } else -+ pax_mirror_file_pte(vma, address, page_m, ptl); -+ -+out: -+ pte_unmap_unlock(pte, ptl); -+} -+#endif -+ - /* - * This routine handles present pages, when users try to write - * to a shared page. It is done by copying the page to a new address -@@ -1897,6 +2078,12 @@ gotten: - */ - page_table = pte_offset_map_lock(mm, pmd, address, &ptl); - if (likely(pte_same(*page_table, orig_pte))) { -+ -+#ifdef CONFIG_PAX_SEGMEXEC -+ if (pax_find_mirror_vma(vma)) -+ BUG_ON(!trylock_page(new_page)); -+#endif -+ - if (old_page) { - if (!PageAnon(old_page)) { - dec_mm_counter(mm, file_rss); -@@ -1947,6 +2134,10 @@ gotten: - page_remove_rmap(old_page, vma); - } - -+#ifdef CONFIG_PAX_SEGMEXEC -+ pax_mirror_anon_pte(vma, address, new_page, ptl); -+#endif -+ - /* Free the old page.. */ - new_page = old_page; - ret |= VM_FAULT_WRITE; -@@ -2206,6 +2397,7 @@ int vmtruncate(struct inode * inode, lof - unsigned long limit; - - limit = current->signal->rlim[RLIMIT_FSIZE].rlim_cur; -+ gr_learn_resource(current, RLIMIT_FSIZE, offset, 1); - if (limit != RLIM_INFINITY && offset > limit) - goto out_sig; - if (offset > inode->i_sb->s_maxbytes) -@@ -2357,6 +2549,11 @@ static int do_swap_page(struct mm_struct - swap_free(entry); - if (vm_swap_full() || (vma->vm_flags & VM_LOCKED) || PageMlocked(page)) - remove_exclusive_swap_page(page); -+ -+#ifdef CONFIG_PAX_SEGMEXEC -+ if (write_access || !pax_find_mirror_vma(vma)) -+#endif -+ - unlock_page(page); - - if (write_access) { -@@ -2368,6 +2565,11 @@ static int do_swap_page(struct mm_struct - - /* No need to invalidate - it was non-present before */ - update_mmu_cache(vma, address, pte); -+ -+#ifdef CONFIG_PAX_SEGMEXEC -+ pax_mirror_anon_pte(vma, address, page, ptl); -+#endif -+ - unlock: - pte_unmap_unlock(page_table, ptl); - out: -@@ -2412,6 +2614,12 @@ static int do_anonymous_page(struct mm_s - page_table = pte_offset_map_lock(mm, pmd, address, &ptl); - if (!pte_none(*page_table)) - goto release; -+ -+#ifdef CONFIG_PAX_SEGMEXEC -+ if (pax_find_mirror_vma(vma)) -+ BUG_ON(!trylock_page(page)); -+#endif -+ - inc_mm_counter(mm, anon_rss); - SetPageSwapBacked(page); - lru_cache_add_active_or_unevictable(page, vma); -@@ -2420,6 +2628,11 @@ static int do_anonymous_page(struct mm_s - - /* No need to invalidate - it was non-present before */ - update_mmu_cache(vma, address, entry); -+ -+#ifdef CONFIG_PAX_SEGMEXEC -+ pax_mirror_anon_pte(vma, address, page, ptl); -+#endif -+ - unlock: - pte_unmap_unlock(page_table, ptl); - return 0; -@@ -2556,6 +2769,12 @@ static int __do_fault(struct mm_struct * - */ - /* Only go through if we didn't race with anybody else... */ - if (likely(pte_same(*page_table, orig_pte))) { -+ -+#ifdef CONFIG_PAX_SEGMEXEC -+ if (anon && pax_find_mirror_vma(vma)) -+ BUG_ON(!trylock_page(page)); -+#endif -+ - flush_icache_page(vma, page); - entry = mk_pte(page, vma->vm_page_prot); - if (flags & FAULT_FLAG_WRITE) -@@ -2578,6 +2797,14 @@ static int __do_fault(struct mm_struct * - - /* no need to invalidate: a not-present page won't be cached */ - update_mmu_cache(vma, address, entry); -+ -+#ifdef CONFIG_PAX_SEGMEXEC -+ if (anon) -+ pax_mirror_anon_pte(vma, address, page, ptl); -+ else -+ pax_mirror_file_pte(vma, address, page, ptl); -+#endif -+ - } else { - if (charged) - mem_cgroup_uncharge_page(page); -@@ -2711,6 +2938,12 @@ static inline int handle_pte_fault(struc - if (write_access) - flush_tlb_page(vma, address); - } -+ -+#ifdef CONFIG_PAX_SEGMEXEC -+ pax_mirror_pte(vma, address, pte, pmd, ptl); -+ return 0; -+#endif -+ - unlock: - pte_unmap_unlock(pte, ptl); - return 0; -@@ -2727,6 +2960,10 @@ int handle_mm_fault(struct mm_struct *mm - pmd_t *pmd; - pte_t *pte; - -+#ifdef CONFIG_PAX_SEGMEXEC -+ struct vm_area_struct *vma_m; -+#endif -+ - __set_current_state(TASK_RUNNING); - - count_vm_event(PGFAULT); -@@ -2734,6 +2971,34 @@ int handle_mm_fault(struct mm_struct *mm - if (unlikely(is_vm_hugetlb_page(vma))) - return hugetlb_fault(mm, vma, address, write_access); - -+#ifdef CONFIG_PAX_SEGMEXEC -+ vma_m = pax_find_mirror_vma(vma); -+ if (vma_m) { -+ unsigned long address_m; -+ pgd_t *pgd_m; -+ pud_t *pud_m; -+ pmd_t *pmd_m; -+ -+ if (vma->vm_start > vma_m->vm_start) { -+ address_m = address; -+ address -= SEGMEXEC_TASK_SIZE; -+ vma = vma_m; -+ } else -+ address_m = address + SEGMEXEC_TASK_SIZE; -+ -+ pgd_m = pgd_offset(mm, address_m); -+ pud_m = pud_alloc(mm, pgd_m, address_m); -+ if (!pud_m) -+ return VM_FAULT_OOM; -+ pmd_m = pmd_alloc(mm, pud_m, address_m); -+ if (!pmd_m) -+ return VM_FAULT_OOM; -+ if (!pmd_present(*pmd_m) && __pte_alloc(mm, pmd_m, address_m)) -+ return VM_FAULT_OOM; -+ pax_unmap_mirror_pte(vma_m, address_m, pmd_m); -+ } -+#endif -+ - pgd = pgd_offset(mm, address); - pud = pud_alloc(mm, pgd, address); - if (!pud) -@@ -2831,7 +3096,7 @@ static int __init gate_vma_init(void) - gate_vma.vm_start = FIXADDR_USER_START; - gate_vma.vm_end = FIXADDR_USER_END; - gate_vma.vm_flags = VM_READ | VM_MAYREAD | VM_EXEC | VM_MAYEXEC; -- gate_vma.vm_page_prot = __P101; -+ gate_vma.vm_page_prot = vm_get_page_prot(gate_vma.vm_flags); - /* - * Make sure the vDSO gets into every core dump. - * Dumping its contents makes post-mortem fully interpretable later -diff -urNp linux-2.6.28.8/mm/mempolicy.c linux-2.6.28.8/mm/mempolicy.c ---- linux-2.6.28.8/mm/mempolicy.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/mm/mempolicy.c 2009-02-21 09:37:50.000000000 -0500 -@@ -551,6 +551,10 @@ static int mbind_range(struct vm_area_st - struct vm_area_struct *next; - int err; - -+#ifdef CONFIG_PAX_SEGMEXEC -+ struct vm_area_struct *vma_m; -+#endif -+ - err = 0; - for (; vma && vma->vm_start < end; vma = next) { - next = vma->vm_next; -@@ -562,6 +566,16 @@ static int mbind_range(struct vm_area_st - err = policy_vma(vma, new); - if (err) - break; -+ -+#ifdef CONFIG_PAX_SEGMEXEC -+ vma_m = pax_find_mirror_vma(vma); -+ if (vma_m) { -+ err = policy_vma(vma_m, new); -+ if (err) -+ break; -+ } -+#endif -+ - } - return err; - } -@@ -954,6 +968,17 @@ static long do_mbind(unsigned long start - - if (end < start) - return -EINVAL; -+ -+#ifdef CONFIG_PAX_SEGMEXEC -+ if (mm->pax_flags & MF_PAX_SEGMEXEC) { -+ if (end > SEGMEXEC_TASK_SIZE) -+ return -EINVAL; -+ } else -+#endif -+ -+ if (end > TASK_SIZE) -+ return -EINVAL; -+ - if (end == start) - return 0; - -diff -urNp linux-2.6.28.8/mm/migrate.c linux-2.6.28.8/mm/migrate.c ---- linux-2.6.28.8/mm/migrate.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/mm/migrate.c 2009-02-21 09:37:50.000000000 -0500 -@@ -1139,7 +1139,7 @@ int migrate_vmas(struct mm_struct *mm, c - struct vm_area_struct *vma; - int err = 0; - -- for(vma = mm->mmap; vma->vm_next && !err; vma = vma->vm_next) { -+ for(vma = mm->mmap; vma && !err; vma = vma->vm_next) { - if (vma->vm_ops && vma->vm_ops->migrate) { - err = vma->vm_ops->migrate(vma, to, from, flags); - if (err) -diff -urNp linux-2.6.28.8/mm/mlock.c linux-2.6.28.8/mm/mlock.c ---- linux-2.6.28.8/mm/mlock.c 2009-02-07 16:10:45.000000000 -0500 -+++ linux-2.6.28.8/mm/mlock.c 2009-02-21 09:37:50.000000000 -0500 -@@ -13,6 +13,7 @@ - #include <linux/pagemap.h> - #include <linux/mempolicy.h> - #include <linux/syscalls.h> -+#include <linux/security.h> - #include <linux/sched.h> - #include <linux/module.h> - #include <linux/rmap.h> -@@ -452,6 +453,17 @@ static int do_mlock(unsigned long start, - return -EINVAL; - if (end == start) - return 0; -+ -+#ifdef CONFIG_PAX_SEGMEXEC -+ if (current->mm->pax_flags & MF_PAX_SEGMEXEC) { -+ if (end > SEGMEXEC_TASK_SIZE) -+ return -EINVAL; -+ } else -+#endif -+ -+ if (end > TASK_SIZE) -+ return -EINVAL; -+ - vma = find_vma_prev(current->mm, start, &prev); - if (!vma || vma->vm_start > start) - return -ENOMEM; -@@ -511,6 +523,7 @@ SYSCALL_DEFINE2(mlock, unsigned long, st - lock_limit >>= PAGE_SHIFT; - - /* check against resource limits */ -+ gr_learn_resource(current, RLIMIT_MEMLOCK, (current->mm->locked_vm << PAGE_SHIFT) + len, 1); - if ((locked <= lock_limit) || capable(CAP_IPC_LOCK)) - error = do_mlock(start, len, 1); - up_write(¤t->mm->mmap_sem); -@@ -532,10 +545,10 @@ SYSCALL_DEFINE2(munlock, unsigned long, - static int do_mlockall(int flags) - { - struct vm_area_struct * vma, * prev = NULL; -- unsigned int def_flags = 0; -+ unsigned int def_flags = current->mm->def_flags & ~VM_LOCKED; - - if (flags & MCL_FUTURE) -- def_flags = VM_LOCKED; -+ def_flags |= VM_LOCKED; - current->mm->def_flags = def_flags; - if (flags == MCL_FUTURE) - goto out; -@@ -543,6 +556,12 @@ static int do_mlockall(int flags) - for (vma = current->mm->mmap; vma ; vma = prev->vm_next) { - unsigned int newflags; - -+#ifdef CONFIG_PAX_SEGMEXEC -+ if ((current->mm->pax_flags & MF_PAX_SEGMEXEC) && (vma->vm_start >= SEGMEXEC_TASK_SIZE)) -+ break; -+#endif -+ -+ BUG_ON(vma->vm_end > TASK_SIZE); - newflags = vma->vm_flags | VM_LOCKED; - if (!(flags & MCL_CURRENT)) - newflags &= ~VM_LOCKED; -@@ -574,6 +593,7 @@ SYSCALL_DEFINE1(mlockall, int, flags) - lock_limit >>= PAGE_SHIFT; - - ret = -ENOMEM; -+ gr_learn_resource(current, RLIMIT_MEMLOCK, current->mm->total_vm, 1); - if (!(flags & MCL_CURRENT) || (current->mm->total_vm <= lock_limit) || - capable(CAP_IPC_LOCK)) - ret = do_mlockall(flags); -diff -urNp linux-2.6.28.8/mm/mmap.c linux-2.6.28.8/mm/mmap.c ---- linux-2.6.28.8/mm/mmap.c 2009-02-08 00:54:27.000000000 -0500 -+++ linux-2.6.28.8/mm/mmap.c 2009-02-21 09:37:50.000000000 -0500 -@@ -43,6 +43,16 @@ - #define arch_rebalance_pgtables(addr, len) (addr) - #endif - -+static inline void verify_mm_writelocked(struct mm_struct *mm) -+{ -+#if defined(CONFIG_DEBUG_VM) || defined(CONFIG_PAX) -+ if (unlikely(down_read_trylock(&mm->mmap_sem))) { -+ up_read(&mm->mmap_sem); -+ BUG(); -+ } -+#endif -+} -+ - static void unmap_region(struct mm_struct *mm, - struct vm_area_struct *vma, struct vm_area_struct *prev, - unsigned long start, unsigned long end); -@@ -68,16 +78,25 @@ static void unmap_region(struct mm_struc - * x: (no) no x: (no) yes x: (no) yes x: (yes) yes - * - */ --pgprot_t protection_map[16] = { -+pgprot_t protection_map[16] __read_only = { - __P000, __P001, __P010, __P011, __P100, __P101, __P110, __P111, - __S000, __S001, __S010, __S011, __S100, __S101, __S110, __S111 - }; - - pgprot_t vm_get_page_prot(unsigned long vm_flags) - { -- return __pgprot(pgprot_val(protection_map[vm_flags & -+ pgprot_t prot = __pgprot(pgprot_val(protection_map[vm_flags & - (VM_READ|VM_WRITE|VM_EXEC|VM_SHARED)]) | - pgprot_val(arch_vm_get_page_prot(vm_flags))); -+ -+#if defined(CONFIG_PAX_PAGEEXEC) && defined(CONFIG_X86_32) -+ if (!nx_enabled && -+ (vm_flags & (VM_PAGEEXEC | VM_EXEC)) == VM_PAGEEXEC && -+ (vm_flags & (VM_READ | VM_WRITE))) -+ prot = __pgprot(pte_val(pte_exprotect(__pte(pgprot_val(prot))))); -+#endif -+ -+ return prot; - } - EXPORT_SYMBOL(vm_get_page_prot); - -@@ -233,6 +252,7 @@ static struct vm_area_struct *remove_vma - struct vm_area_struct *next = vma->vm_next; - - might_sleep(); -+ BUG_ON(vma->vm_mirror); - if (vma->vm_ops && vma->vm_ops->close) - vma->vm_ops->close(vma); - if (vma->vm_file) { -@@ -269,6 +289,7 @@ SYSCALL_DEFINE1(brk, unsigned long, brk) - * not page aligned -Ram Gupta - */ - rlim = current->signal->rlim[RLIMIT_DATA].rlim_cur; -+ gr_learn_resource(current, RLIMIT_DATA, (brk - mm->start_brk) + (mm->end_data - mm->start_data), 1); - if (rlim < RLIM_INFINITY && (brk - mm->start_brk) + - (mm->end_data - mm->start_data) > rlim) - goto out; -@@ -696,6 +717,12 @@ static int - can_vma_merge_before(struct vm_area_struct *vma, unsigned long vm_flags, - struct anon_vma *anon_vma, struct file *file, pgoff_t vm_pgoff) - { -+ -+#ifdef CONFIG_PAX_SEGMEXEC -+ if ((vma->vm_mm->pax_flags & MF_PAX_SEGMEXEC) && vma->vm_start == SEGMEXEC_TASK_SIZE) -+ return 0; -+#endif -+ - if (is_mergeable_vma(vma, file, vm_flags) && - is_mergeable_anon_vma(anon_vma, vma->anon_vma)) { - if (vma->vm_pgoff == vm_pgoff) -@@ -715,6 +742,12 @@ static int - can_vma_merge_after(struct vm_area_struct *vma, unsigned long vm_flags, - struct anon_vma *anon_vma, struct file *file, pgoff_t vm_pgoff) - { -+ -+#ifdef CONFIG_PAX_SEGMEXEC -+ if ((vma->vm_mm->pax_flags & MF_PAX_SEGMEXEC) && vma->vm_end == SEGMEXEC_TASK_SIZE) -+ return 0; -+#endif -+ - if (is_mergeable_vma(vma, file, vm_flags) && - is_mergeable_anon_vma(anon_vma, vma->anon_vma)) { - pgoff_t vm_pglen; -@@ -757,12 +790,19 @@ can_vma_merge_after(struct vm_area_struc - struct vm_area_struct *vma_merge(struct mm_struct *mm, - struct vm_area_struct *prev, unsigned long addr, - unsigned long end, unsigned long vm_flags, -- struct anon_vma *anon_vma, struct file *file, -+ struct anon_vma *anon_vma, struct file *file, - pgoff_t pgoff, struct mempolicy *policy) - { - pgoff_t pglen = (end - addr) >> PAGE_SHIFT; - struct vm_area_struct *area, *next; - -+#ifdef CONFIG_PAX_SEGMEXEC -+ unsigned long addr_m = addr + SEGMEXEC_TASK_SIZE, end_m = end + SEGMEXEC_TASK_SIZE; -+ struct vm_area_struct *area_m = NULL, *next_m = NULL, *prev_m = NULL; -+ -+ BUG_ON((mm->pax_flags & MF_PAX_SEGMEXEC) && SEGMEXEC_TASK_SIZE < end); -+#endif -+ - /* - * We later require that vma->vm_flags == vm_flags, - * so this tests vma->vm_flags & VM_SPECIAL, too. -@@ -778,6 +818,15 @@ struct vm_area_struct *vma_merge(struct - if (next && next->vm_end == end) /* cases 6, 7, 8 */ - next = next->vm_next; - -+#ifdef CONFIG_PAX_SEGMEXEC -+ if (prev) -+ prev_m = pax_find_mirror_vma(prev); -+ if (area) -+ area_m = pax_find_mirror_vma(area); -+ if (next) -+ next_m = pax_find_mirror_vma(next); -+#endif -+ - /* - * Can it merge with the predecessor? - */ -@@ -797,9 +846,24 @@ struct vm_area_struct *vma_merge(struct - /* cases 1, 6 */ - vma_adjust(prev, prev->vm_start, - next->vm_end, prev->vm_pgoff, NULL); -- } else /* cases 2, 5, 7 */ -+ -+#ifdef CONFIG_PAX_SEGMEXEC -+ if (prev_m) -+ vma_adjust(prev_m, prev_m->vm_start, -+ next_m->vm_end, prev_m->vm_pgoff, NULL); -+#endif -+ -+ } else { /* cases 2, 5, 7 */ - vma_adjust(prev, prev->vm_start, - end, prev->vm_pgoff, NULL); -+ -+#ifdef CONFIG_PAX_SEGMEXEC -+ if (prev_m) -+ vma_adjust(prev_m, prev_m->vm_start, -+ end_m, prev_m->vm_pgoff, NULL); -+#endif -+ -+ } - return prev; - } - -@@ -810,12 +874,27 @@ struct vm_area_struct *vma_merge(struct - mpol_equal(policy, vma_policy(next)) && - can_vma_merge_before(next, vm_flags, - anon_vma, file, pgoff+pglen)) { -- if (prev && addr < prev->vm_end) /* case 4 */ -+ if (prev && addr < prev->vm_end) { /* case 4 */ - vma_adjust(prev, prev->vm_start, - addr, prev->vm_pgoff, NULL); -- else /* cases 3, 8 */ -+ -+#ifdef CONFIG_PAX_SEGMEXEC -+ if (prev_m) -+ vma_adjust(prev_m, prev_m->vm_start, -+ addr_m, prev_m->vm_pgoff, NULL); -+#endif -+ -+ } else { /* cases 3, 8 */ - vma_adjust(area, addr, next->vm_end, - next->vm_pgoff - pglen, NULL); -+ -+#ifdef CONFIG_PAX_SEGMEXEC -+ if (area_m) -+ vma_adjust(area_m, addr_m, next_m->vm_end, -+ next_m->vm_pgoff - pglen, NULL); -+#endif -+ -+ } - return area; - } - -@@ -890,14 +969,11 @@ none: - void vm_stat_account(struct mm_struct *mm, unsigned long flags, - struct file *file, long pages) - { -- const unsigned long stack_flags -- = VM_STACK_FLAGS & (VM_GROWSUP|VM_GROWSDOWN); -- - if (file) { - mm->shared_vm += pages; - if ((flags & (VM_EXEC|VM_WRITE)) == VM_EXEC) - mm->exec_vm += pages; -- } else if (flags & stack_flags) -+ } else if (flags & (VM_GROWSUP|VM_GROWSDOWN)) - mm->stack_vm += pages; - if (flags & (VM_RESERVED|VM_IO)) - mm->reserved_vm += pages; -@@ -925,7 +1001,7 @@ unsigned long do_mmap_pgoff(struct file - * (the exception is when the underlying filesystem is noexec - * mounted, in which case we dont add PROT_EXEC.) - */ -- if ((prot & PROT_READ) && (current->personality & READ_IMPLIES_EXEC)) -+ if ((prot & (PROT_READ | PROT_WRITE)) && (current->personality & READ_IMPLIES_EXEC)) - if (!(file && (file->f_path.mnt->mnt_flags & MNT_NOEXEC))) - prot |= PROT_EXEC; - -@@ -935,15 +1011,15 @@ unsigned long do_mmap_pgoff(struct file - if (!(flags & MAP_FIXED)) - addr = round_hint_to_min(addr); - -- error = arch_mmap_check(addr, len, flags); -- if (error) -- return error; -- - /* Careful about overflows.. */ - len = PAGE_ALIGN(len); - if (!len || len > TASK_SIZE) - return -ENOMEM; - -+ error = arch_mmap_check(addr, len, flags); -+ if (error) -+ return error; -+ - /* offset overflow? */ - if ((pgoff + (len >> PAGE_SHIFT)) < pgoff) - return -EOVERFLOW; -@@ -955,7 +1031,7 @@ unsigned long do_mmap_pgoff(struct file - /* Obtain the address to map to. we verify (or select) it and ensure - * that it represents a valid section of the address space. - */ -- addr = get_unmapped_area(file, addr, len, pgoff, flags); -+ addr = get_unmapped_area(file, addr, len, pgoff, flags | ((prot & PROT_EXEC) ? MAP_EXECUTABLE : 0)); - if (addr & ~PAGE_MASK) - return addr; - -@@ -966,6 +1042,26 @@ unsigned long do_mmap_pgoff(struct file - vm_flags = calc_vm_prot_bits(prot) | calc_vm_flag_bits(flags) | - mm->def_flags | VM_MAYREAD | VM_MAYWRITE | VM_MAYEXEC; - -+#if defined(CONFIG_PAX_PAGEEXEC) || defined(CONFIG_PAX_SEGMEXEC) -+ if (mm->pax_flags & (MF_PAX_PAGEEXEC | MF_PAX_SEGMEXEC)) { -+ -+#ifdef CONFIG_PAX_MPROTECT -+ if (mm->pax_flags & MF_PAX_MPROTECT) { -+ if ((prot & (PROT_WRITE | PROT_EXEC)) != PROT_EXEC) -+ vm_flags &= ~(VM_EXEC | VM_MAYEXEC); -+ else -+ vm_flags &= ~(VM_WRITE | VM_MAYWRITE); -+ } -+#endif -+ -+ } -+#endif -+ -+#if defined(CONFIG_PAX_PAGEEXEC) && defined(CONFIG_X86_32) -+ if ((mm->pax_flags & MF_PAX_PAGEEXEC) && file) -+ vm_flags &= ~VM_PAGEEXEC; -+#endif -+ - if (flags & MAP_LOCKED) { - if (!can_do_mlock()) - return -EPERM; -@@ -979,6 +1075,7 @@ unsigned long do_mmap_pgoff(struct file - locked += mm->locked_vm; - lock_limit = current->signal->rlim[RLIMIT_MEMLOCK].rlim_cur; - lock_limit >>= PAGE_SHIFT; -+ gr_learn_resource(current, RLIMIT_MEMLOCK, locked << PAGE_SHIFT, 1); - if (locked > lock_limit && !capable(CAP_IPC_LOCK)) - return -EAGAIN; - } -@@ -1051,6 +1148,9 @@ unsigned long do_mmap_pgoff(struct file - if (error) - return error; - -+ if (!gr_acl_handle_mmap(file, prot)) -+ return -EACCES; -+ - return mmap_region(file, addr, len, flags, vm_flags, pgoff, - accountable); - } -@@ -1064,10 +1164,10 @@ EXPORT_SYMBOL(do_mmap_pgoff); - */ - int vma_wants_writenotify(struct vm_area_struct *vma) - { -- unsigned int vm_flags = vma->vm_flags; -+ unsigned long vm_flags = vma->vm_flags; - - /* If it was private or non-writable, the write bit is already clear */ -- if ((vm_flags & (VM_WRITE|VM_SHARED)) != ((VM_WRITE|VM_SHARED))) -+ if ((vm_flags & (VM_WRITE|VM_SHARED)) != (VM_WRITE|VM_SHARED)) - return 0; - - /* The backer wishes to know when pages are first written to? */ -@@ -1102,14 +1202,24 @@ unsigned long mmap_region(struct file *f - unsigned long charged = 0; - struct inode *inode = file ? file->f_path.dentry->d_inode : NULL; - -+#ifdef CONFIG_PAX_SEGMEXEC -+ struct vm_area_struct *vma_m = NULL; -+#endif -+ -+ /* -+ * mm->mmap_sem is required to protect against another thread -+ * changing the mappings in case we sleep. -+ */ -+ verify_mm_writelocked(mm); -+ - /* Clear old maps */ - error = -ENOMEM; --munmap_back: - vma = find_vma_prepare(mm, addr, &prev, &rb_link, &rb_parent); - if (vma && vma->vm_start < addr + len) { - if (do_munmap(mm, addr, len)) - return -ENOMEM; -- goto munmap_back; -+ vma = find_vma_prepare(mm, addr, &prev, &rb_link, &rb_parent); -+ BUG_ON(vma && vma->vm_start < addr + len); - } - - /* Check against address space limit. */ -@@ -1158,6 +1268,16 @@ munmap_back: - goto unacct_error; - } - -+#ifdef CONFIG_PAX_SEGMEXEC -+ if ((mm->pax_flags & MF_PAX_SEGMEXEC) && (vm_flags & VM_EXEC)) { -+ vma_m = kmem_cache_zalloc(vm_area_cachep, GFP_KERNEL); -+ if (!vma_m) { -+ error = -ENOMEM; -+ goto free_vma; -+ } -+ } -+#endif -+ - vma->vm_mm = mm; - vma->vm_start = addr; - vma->vm_end = addr + len; -@@ -1180,6 +1300,19 @@ munmap_back: - error = file->f_op->mmap(file, vma); - if (error) - goto unmap_and_free_vma; -+ -+#ifdef CONFIG_PAX_SEGMEXEC -+ if (vma_m && (vm_flags & VM_EXECUTABLE)) -+ added_exe_file_vma(mm); -+#endif -+ -+#if defined(CONFIG_PAX_PAGEEXEC) && defined(CONFIG_X86_32) -+ if ((mm->pax_flags & MF_PAX_PAGEEXEC) && !(vma->vm_flags & VM_SPECIAL)) { -+ vma->vm_flags |= VM_PAGEEXEC; -+ vma->vm_page_prot = vm_get_page_prot(vma->vm_flags); -+ } -+#endif -+ - if (vm_flags & VM_EXECUTABLE) - added_exe_file_vma(mm); - } else if (vm_flags & VM_SHARED) { -@@ -1215,13 +1348,30 @@ munmap_back: - if (merged_vma) { - mpol_put(vma_policy(vma)); - kmem_cache_free(vm_area_cachep, vma); -+ vma = NULL; - fput(file); -+ -+#ifdef CONFIG_PAX_SEGMEXEC -+ if (vma_m) { -+ kmem_cache_free(vm_area_cachep, vma_m); -+ -+ if (vm_flags & VM_EXECUTABLE) -+ removed_exe_file_vma(mm); -+ } -+#endif -+ - if (vm_flags & VM_EXECUTABLE) - removed_exe_file_vma(mm); - vma = merged_vma; - } else { - vma_link(mm, vma, prev, rb_link, rb_parent); - file = vma->vm_file; -+ -+#ifdef CONFIG_PAX_SEGMEXEC -+ if (vma_m) -+ pax_mirror_vma(vma_m, vma); -+#endif -+ - } - - /* Once vma denies write, undo our temporary denial count */ -@@ -1230,6 +1380,7 @@ munmap_back: - out: - mm->total_vm += len >> PAGE_SHIFT; - vm_stat_account(mm, vm_flags, file, len >> PAGE_SHIFT); -+ track_exec_limit(mm, addr, addr + len, vm_flags); - if (vm_flags & VM_LOCKED) { - /* - * makes pages present; downgrades, drops, reacquires mmap_sem -@@ -1252,6 +1403,12 @@ unmap_and_free_vma: - unmap_region(mm, vma, prev, vma->vm_start, vma->vm_end); - charged = 0; - free_vma: -+ -+#ifdef CONFIG_PAX_SEGMEXEC -+ if (vma_m) -+ kmem_cache_free(vm_area_cachep, vma_m); -+#endif -+ - kmem_cache_free(vm_area_cachep, vma); - unacct_error: - if (charged) -@@ -1285,6 +1442,10 @@ arch_get_unmapped_area(struct file *filp - if (flags & MAP_FIXED) - return addr; - -+#ifdef CONFIG_PAX_RANDMMAP -+ if (!(mm->pax_flags & MF_PAX_RANDMMAP)) -+#endif -+ - if (addr) { - addr = PAGE_ALIGN(addr); - vma = find_vma(mm, addr); -@@ -1293,10 +1454,10 @@ arch_get_unmapped_area(struct file *filp - return addr; - } - if (len > mm->cached_hole_size) { -- start_addr = addr = mm->free_area_cache; -+ start_addr = addr = mm->free_area_cache; - } else { -- start_addr = addr = TASK_UNMAPPED_BASE; -- mm->cached_hole_size = 0; -+ start_addr = addr = mm->mmap_base; -+ mm->cached_hole_size = 0; - } - - full_search: -@@ -1307,9 +1468,8 @@ full_search: - * Start a new search - just in case we missed - * some holes. - */ -- if (start_addr != TASK_UNMAPPED_BASE) { -- addr = TASK_UNMAPPED_BASE; -- start_addr = addr; -+ if (start_addr != mm->mmap_base) { -+ start_addr = addr = mm->mmap_base; - mm->cached_hole_size = 0; - goto full_search; - } -@@ -1331,10 +1491,16 @@ full_search: - - void arch_unmap_area(struct mm_struct *mm, unsigned long addr) - { -+ -+#ifdef CONFIG_PAX_SEGMEXEC -+ if ((mm->pax_flags & MF_PAX_SEGMEXEC) && SEGMEXEC_TASK_SIZE <= addr) -+ return; -+#endif -+ - /* - * Is this a new hole at the lowest possible address? - */ -- if (addr >= TASK_UNMAPPED_BASE && addr < mm->free_area_cache) { -+ if (addr >= mm->mmap_base && addr < mm->free_area_cache) { - mm->free_area_cache = addr; - mm->cached_hole_size = ~0UL; - } -@@ -1352,7 +1518,7 @@ arch_get_unmapped_area_topdown(struct fi - { - struct vm_area_struct *vma; - struct mm_struct *mm = current->mm; -- unsigned long addr = addr0; -+ unsigned long base = mm->mmap_base, addr = addr0; - - /* requested length too big for entire address space */ - if (len > TASK_SIZE) -@@ -1361,6 +1527,10 @@ arch_get_unmapped_area_topdown(struct fi - if (flags & MAP_FIXED) - return addr; - -+#ifdef CONFIG_PAX_RANDMMAP -+ if (!(mm->pax_flags & MF_PAX_RANDMMAP)) -+#endif -+ - /* requesting a specific address */ - if (addr) { - addr = PAGE_ALIGN(addr); -@@ -1418,13 +1588,21 @@ bottomup: - * can happen with large stack limits and large mmap() - * allocations. - */ -+ mm->mmap_base = TASK_UNMAPPED_BASE; -+ -+#ifdef CONFIG_PAX_RANDMMAP -+ if (mm->pax_flags & MF_PAX_RANDMMAP) -+ mm->mmap_base += mm->delta_mmap; -+#endif -+ -+ mm->free_area_cache = mm->mmap_base; - mm->cached_hole_size = ~0UL; -- mm->free_area_cache = TASK_UNMAPPED_BASE; - addr = arch_get_unmapped_area(filp, addr0, len, pgoff, flags); - /* - * Restore the topdown base: - */ -- mm->free_area_cache = mm->mmap_base; -+ mm->mmap_base = base; -+ mm->free_area_cache = base; - mm->cached_hole_size = ~0UL; - - return addr; -@@ -1433,6 +1611,12 @@ bottomup: - - void arch_unmap_area_topdown(struct mm_struct *mm, unsigned long addr) - { -+ -+#ifdef CONFIG_PAX_SEGMEXEC -+ if ((mm->pax_flags & MF_PAX_SEGMEXEC) && SEGMEXEC_TASK_SIZE <= addr) -+ return; -+#endif -+ - /* - * Is this a new hole at the highest possible address? - */ -@@ -1440,8 +1624,10 @@ void arch_unmap_area_topdown(struct mm_s - mm->free_area_cache = addr; - - /* dont allow allocations above current base */ -- if (mm->free_area_cache > mm->mmap_base) -+ if (mm->free_area_cache > mm->mmap_base) { - mm->free_area_cache = mm->mmap_base; -+ mm->cached_hole_size = ~0UL; -+ } - } - - unsigned long -@@ -1541,6 +1727,27 @@ out: - return prev ? prev->vm_next : vma; - } - -+#ifdef CONFIG_PAX_SEGMEXEC -+struct vm_area_struct *pax_find_mirror_vma(struct vm_area_struct *vma) -+{ -+ struct vm_area_struct *vma_m; -+ -+ BUG_ON(!vma || vma->vm_start >= vma->vm_end); -+ if (!(vma->vm_mm->pax_flags & MF_PAX_SEGMEXEC) || !(vma->vm_flags & VM_EXEC)) { -+ BUG_ON(vma->vm_mirror); -+ return NULL; -+ } -+ BUG_ON(vma->vm_start < SEGMEXEC_TASK_SIZE && SEGMEXEC_TASK_SIZE < vma->vm_end); -+ vma_m = vma->vm_mirror; -+ BUG_ON(!vma_m || vma_m->vm_mirror != vma); -+ BUG_ON(vma->vm_file != vma_m->vm_file); -+ BUG_ON(vma->vm_end - vma->vm_start != vma_m->vm_end - vma_m->vm_start); -+ BUG_ON(vma->vm_pgoff != vma_m->vm_pgoff || vma->anon_vma != vma_m->anon_vma); -+ BUG_ON((vma->vm_flags ^ vma_m->vm_flags) & ~(VM_WRITE | VM_MAYWRITE | VM_ACCOUNT | VM_LOCKED)); -+ return vma_m; -+} -+#endif -+ - /* - * Verify that the stack growth is acceptable and - * update accounting. This is shared with both the -@@ -1557,6 +1764,7 @@ static int acct_stack_growth(struct vm_a - return -ENOMEM; - - /* Stack limit test */ -+ gr_learn_resource(current, RLIMIT_STACK, size, 1); - if (size > rlim[RLIMIT_STACK].rlim_cur) - return -ENOMEM; - -@@ -1566,6 +1774,7 @@ static int acct_stack_growth(struct vm_a - unsigned long limit; - locked = mm->locked_vm + grow; - limit = rlim[RLIMIT_MEMLOCK].rlim_cur >> PAGE_SHIFT; -+ gr_learn_resource(current, RLIMIT_MEMLOCK, locked << PAGE_SHIFT, 1); - if (locked > limit && !capable(CAP_IPC_LOCK)) - return -ENOMEM; - } -@@ -1580,7 +1789,7 @@ static int acct_stack_growth(struct vm_a - * Overcommit.. This must be the final test, as it will - * update security statistics. - */ -- if (security_vm_enough_memory(grow)) -+ if (security_vm_enough_memory_mm(mm, grow)) - return -ENOMEM; - - /* Ok, everything looks good - let it rip */ -@@ -1601,35 +1810,40 @@ static - #endif - int expand_upwards(struct vm_area_struct *vma, unsigned long address) - { -- int error; -+ int error, locknext; - - if (!(vma->vm_flags & VM_GROWSUP)) - return -EFAULT; - -+ /* Also guard against wrapping around to address 0. */ -+ if (address < PAGE_ALIGN(address+1)) -+ address = PAGE_ALIGN(address+1); -+ else -+ return -ENOMEM; -+ - /* - * We must make sure the anon_vma is allocated - * so that the anon_vma locking is not a noop. - */ - if (unlikely(anon_vma_prepare(vma))) - return -ENOMEM; -+ locknext = vma->vm_next && (vma->vm_next->vm_flags & VM_GROWSDOWN); -+ if (locknext && unlikely(anon_vma_prepare(vma->vm_next))) -+ return -ENOMEM; - anon_vma_lock(vma); -+ if (locknext) -+ anon_vma_lock(vma->vm_next); - - /* - * vma->vm_start/vm_end cannot change under us because the caller - * is required to hold the mmap_sem in read mode. We need the -- * anon_vma lock to serialize against concurrent expand_stacks. -- * Also guard against wrapping around to address 0. -+ * anon_vma locks to serialize against concurrent expand_stacks -+ * and expand_upwards. - */ -- if (address < PAGE_ALIGN(address+4)) -- address = PAGE_ALIGN(address+4); -- else { -- anon_vma_unlock(vma); -- return -ENOMEM; -- } - error = 0; - - /* Somebody else might have raced and expanded it already */ -- if (address > vma->vm_end) { -+ if (address > vma->vm_end && (!locknext || vma->vm_next->vm_start >= address)) { - unsigned long size, grow; - - size = address - vma->vm_start; -@@ -1639,6 +1853,8 @@ int expand_upwards(struct vm_area_struct - if (!error) - vma->vm_end = address; - } -+ if (locknext) -+ anon_vma_unlock(vma->vm_next); - anon_vma_unlock(vma); - return error; - } -@@ -1650,7 +1866,8 @@ int expand_upwards(struct vm_area_struct - static int expand_downwards(struct vm_area_struct *vma, - unsigned long address) - { -- int error; -+ int error, lockprev = 0; -+ struct vm_area_struct *prev = NULL; - - /* - * We must make sure the anon_vma is allocated -@@ -1664,6 +1881,15 @@ static int expand_downwards(struct vm_ar - if (error) - return error; - -+#if defined(CONFIG_STACK_GROWSUP) || defined(CONFIG_IA64) -+ find_vma_prev(vma->vm_mm, address, &prev); -+ lockprev = prev && (prev->vm_flags & VM_GROWSUP); -+#endif -+ if (lockprev && unlikely(anon_vma_prepare(prev))) -+ return -ENOMEM; -+ if (lockprev) -+ anon_vma_lock(prev); -+ - anon_vma_lock(vma); - - /* -@@ -1673,9 +1899,15 @@ static int expand_downwards(struct vm_ar - */ - - /* Somebody else might have raced and expanded it already */ -- if (address < vma->vm_start) { -+ if (address < vma->vm_start && (!lockprev || prev->vm_end <= address)) { - unsigned long size, grow; - -+#ifdef CONFIG_PAX_SEGMEXEC -+ struct vm_area_struct *vma_m; -+ -+ vma_m = pax_find_mirror_vma(vma); -+#endif -+ - size = vma->vm_end - address; - grow = (vma->vm_start - address) >> PAGE_SHIFT; - -@@ -1683,9 +1915,20 @@ static int expand_downwards(struct vm_ar - if (!error) { - vma->vm_start = address; - vma->vm_pgoff -= grow; -+ track_exec_limit(vma->vm_mm, vma->vm_start, vma->vm_end, vma->vm_flags); -+ -+#ifdef CONFIG_PAX_SEGMEXEC -+ if (vma_m) { -+ vma_m->vm_start -= grow << PAGE_SHIFT; -+ vma_m->vm_pgoff -= grow; -+ } -+#endif -+ - } - } - anon_vma_unlock(vma); -+ if (lockprev) -+ anon_vma_unlock(prev); - return error; - } - -@@ -1761,6 +2004,13 @@ static void remove_vma_list(struct mm_st - do { - long nrpages = vma_pages(vma); - -+#ifdef CONFIG_PAX_SEGMEXEC -+ if ((mm->pax_flags & MF_PAX_SEGMEXEC) && (vma->vm_start >= SEGMEXEC_TASK_SIZE)) { -+ vma = remove_vma(vma); -+ continue; -+ } -+#endif -+ - mm->total_vm -= nrpages; - vm_stat_account(mm, vma->vm_flags, vma->vm_file, -nrpages); - vma = remove_vma(vma); -@@ -1805,6 +2055,16 @@ detach_vmas_to_be_unmapped(struct mm_str - - insertion_point = (prev ? &prev->vm_next : &mm->mmap); - do { -+ -+#ifdef CONFIG_PAX_SEGMEXEC -+ if (vma->vm_mirror) { -+ BUG_ON(!vma->vm_mirror->vm_mirror || vma->vm_mirror->vm_mirror != vma); -+ vma->vm_mirror->vm_mirror = NULL; -+ vma->vm_mirror->vm_flags &= ~VM_EXEC; -+ vma->vm_mirror = NULL; -+ } -+#endif -+ - rb_erase(&vma->vm_rb, &mm->mm_rb); - mm->map_count--; - tail_vma = vma; -@@ -1824,6 +2084,108 @@ detach_vmas_to_be_unmapped(struct mm_str - * Split a vma into two pieces at address 'addr', a new vma is allocated - * either for the first part or the tail. - */ -+ -+#ifdef CONFIG_PAX_SEGMEXEC -+int split_vma(struct mm_struct * mm, struct vm_area_struct * vma, -+ unsigned long addr, int new_below) -+{ -+ struct mempolicy *pol; -+ struct vm_area_struct *new, *vma_m, *new_m = NULL; -+ unsigned long addr_m = addr + SEGMEXEC_TASK_SIZE; -+ -+ if (is_vm_hugetlb_page(vma) && (addr & ~HPAGE_MASK)) -+ return -EINVAL; -+ -+ vma_m = pax_find_mirror_vma(vma); -+ if (vma_m) { -+ BUG_ON(vma->vm_end > SEGMEXEC_TASK_SIZE); -+ if (mm->map_count >= sysctl_max_map_count-1) -+ return -ENOMEM; -+ } else if (mm->map_count >= sysctl_max_map_count) -+ return -ENOMEM; -+ -+ new = kmem_cache_alloc(vm_area_cachep, GFP_KERNEL); -+ if (!new) -+ return -ENOMEM; -+ -+ if (vma_m) { -+ new_m = kmem_cache_alloc(vm_area_cachep, GFP_KERNEL); -+ if (!new_m) { -+ kmem_cache_free(vm_area_cachep, new); -+ return -ENOMEM; -+ } -+ } -+ -+ /* most fields are the same, copy all, and then fixup */ -+ *new = *vma; -+ -+ if (new_below) -+ new->vm_end = addr; -+ else { -+ new->vm_start = addr; -+ new->vm_pgoff += ((addr - vma->vm_start) >> PAGE_SHIFT); -+ } -+ -+ if (vma_m) { -+ *new_m = *vma_m; -+ new_m->vm_mirror = new; -+ new->vm_mirror = new_m; -+ -+ if (new_below) -+ new_m->vm_end = addr_m; -+ else { -+ new_m->vm_start = addr_m; -+ new_m->vm_pgoff += ((addr_m - vma_m->vm_start) >> PAGE_SHIFT); -+ } -+ } -+ -+ pol = mpol_dup(vma_policy(vma)); -+ if (IS_ERR(pol)) { -+ if (new_m) -+ kmem_cache_free(vm_area_cachep, new_m); -+ kmem_cache_free(vm_area_cachep, new); -+ return PTR_ERR(pol); -+ } -+ vma_set_policy(new, pol); -+ -+ if (new->vm_file) { -+ get_file(new->vm_file); -+ if (vma->vm_flags & VM_EXECUTABLE) -+ added_exe_file_vma(mm); -+ } -+ -+ if (new->vm_ops && new->vm_ops->open) -+ new->vm_ops->open(new); -+ -+ if (new_below) -+ vma_adjust(vma, addr, vma->vm_end, vma->vm_pgoff + -+ ((addr - new->vm_start) >> PAGE_SHIFT), new); -+ else -+ vma_adjust(vma, vma->vm_start, addr, vma->vm_pgoff, new); -+ -+ if (vma_m) { -+ mpol_get(pol); -+ vma_set_policy(new_m, pol); -+ -+ if (new_m->vm_file) { -+ get_file(new_m->vm_file); -+ if (vma_m->vm_flags & VM_EXECUTABLE) -+ added_exe_file_vma(mm); -+ } -+ -+ if (new_m->vm_ops && new_m->vm_ops->open) -+ new_m->vm_ops->open(new_m); -+ -+ if (new_below) -+ vma_adjust(vma_m, addr_m, vma_m->vm_end, vma_m->vm_pgoff + -+ ((addr_m - new_m->vm_start) >> PAGE_SHIFT), new_m); -+ else -+ vma_adjust(vma_m, vma_m->vm_start, addr_m, vma_m->vm_pgoff, new_m); -+ } -+ -+ return 0; -+} -+#else - int split_vma(struct mm_struct * mm, struct vm_area_struct * vma, - unsigned long addr, int new_below) - { -@@ -1875,17 +2237,37 @@ int split_vma(struct mm_struct * mm, str - - return 0; - } -+#endif - - /* Munmap is split into 2 main parts -- this part which finds - * what needs doing, and the areas themselves, which do the - * work. This now handles partial unmappings. - * Jeremy Fitzhardinge <jeremy@goop.org> - */ -+#ifdef CONFIG_PAX_SEGMEXEC - int do_munmap(struct mm_struct *mm, unsigned long start, size_t len) - { -+ int ret = __do_munmap(mm, start, len); -+ if (ret || !(mm->pax_flags & MF_PAX_SEGMEXEC)) -+ return ret; -+ -+ return __do_munmap(mm, start + SEGMEXEC_TASK_SIZE, len); -+} -+ -+int __do_munmap(struct mm_struct *mm, unsigned long start, size_t len) -+#else -+int do_munmap(struct mm_struct *mm, unsigned long start, size_t len) -+#endif -+{ - unsigned long end; - struct vm_area_struct *vma, *prev, *last; - -+ /* -+ * mm->mmap_sem is required to protect against another thread -+ * changing the mappings in case we sleep. -+ */ -+ verify_mm_writelocked(mm); -+ - if ((start & ~PAGE_MASK) || start > TASK_SIZE || len > TASK_SIZE-start) - return -EINVAL; - -@@ -1949,6 +2331,8 @@ int do_munmap(struct mm_struct *mm, unsi - /* Fix up all other VM information */ - remove_vma_list(mm, vma); - -+ track_exec_limit(mm, start, end, 0UL); -+ - return 0; - } - -@@ -1961,22 +2345,18 @@ SYSCALL_DEFINE2(munmap, unsigned long, a - - profile_munmap(addr); - -+#ifdef CONFIG_PAX_SEGMEXEC -+ if ((mm->pax_flags & MF_PAX_SEGMEXEC) && -+ (len > SEGMEXEC_TASK_SIZE || addr > SEGMEXEC_TASK_SIZE-len)) -+ return -EINVAL; -+#endif -+ - down_write(&mm->mmap_sem); - ret = do_munmap(mm, addr, len); - up_write(&mm->mmap_sem); - return ret; - } - --static inline void verify_mm_writelocked(struct mm_struct *mm) --{ --#ifdef CONFIG_DEBUG_VM -- if (unlikely(down_read_trylock(&mm->mmap_sem))) { -- WARN_ON(1); -- up_read(&mm->mmap_sem); -- } --#endif --} -- - /* - * this is really a simplified "do_mmap". it only handles - * anonymous maps. eventually we may be able to do some -@@ -1990,6 +2370,11 @@ unsigned long do_brk(unsigned long addr, - struct rb_node ** rb_link, * rb_parent; - pgoff_t pgoff = addr >> PAGE_SHIFT; - int error; -+ unsigned long charged; -+ -+#ifdef CONFIG_PAX_SEGMEXEC -+ struct vm_area_struct *vma_m = NULL; -+#endif - - len = PAGE_ALIGN(len); - if (!len) -@@ -2007,19 +2392,34 @@ unsigned long do_brk(unsigned long addr, - - flags = VM_DATA_DEFAULT_FLAGS | VM_ACCOUNT | mm->def_flags; - -+#if defined(CONFIG_PAX_PAGEEXEC) || defined(CONFIG_PAX_SEGMEXEC) -+ if (mm->pax_flags & (MF_PAX_PAGEEXEC | MF_PAX_SEGMEXEC)) { -+ flags &= ~VM_EXEC; -+ -+#ifdef CONFIG_PAX_MPROTECT -+ if (mm->pax_flags & MF_PAX_MPROTECT) -+ flags &= ~VM_MAYEXEC; -+#endif -+ -+ } -+#endif -+ - error = arch_mmap_check(addr, len, flags); - if (error) - return error; - -+ charged = len >> PAGE_SHIFT; -+ - /* - * mlock MCL_FUTURE? - */ - if (mm->def_flags & VM_LOCKED) { - unsigned long locked, lock_limit; -- locked = len >> PAGE_SHIFT; -+ locked = charged; - locked += mm->locked_vm; - lock_limit = current->signal->rlim[RLIMIT_MEMLOCK].rlim_cur; - lock_limit >>= PAGE_SHIFT; -+ gr_learn_resource(current, RLIMIT_MEMLOCK, locked << PAGE_SHIFT, 1); - if (locked > lock_limit && !capable(CAP_IPC_LOCK)) - return -EAGAIN; - } -@@ -2033,22 +2433,22 @@ unsigned long do_brk(unsigned long addr, - /* - * Clear old maps. this also does some error checking for us - */ -- munmap_back: - vma = find_vma_prepare(mm, addr, &prev, &rb_link, &rb_parent); - if (vma && vma->vm_start < addr + len) { - if (do_munmap(mm, addr, len)) - return -ENOMEM; -- goto munmap_back; -+ vma = find_vma_prepare(mm, addr, &prev, &rb_link, &rb_parent); -+ BUG_ON(vma && vma->vm_start < addr + len); - } - - /* Check against address space limits *after* clearing old maps... */ -- if (!may_expand_vm(mm, len >> PAGE_SHIFT)) -+ if (!may_expand_vm(mm, charged)) - return -ENOMEM; - - if (mm->map_count > sysctl_max_map_count) - return -ENOMEM; - -- if (security_vm_enough_memory(len >> PAGE_SHIFT)) -+ if (security_vm_enough_memory(charged)) - return -ENOMEM; - - /* Can we just expand an old private anonymous mapping? */ -@@ -2062,10 +2462,21 @@ unsigned long do_brk(unsigned long addr, - */ - vma = kmem_cache_zalloc(vm_area_cachep, GFP_KERNEL); - if (!vma) { -- vm_unacct_memory(len >> PAGE_SHIFT); -+ vm_unacct_memory(charged); - return -ENOMEM; - } - -+#ifdef CONFIG_PAX_SEGMEXEC -+ if ((mm->pax_flags & MF_PAX_SEGMEXEC) && (flags & VM_EXEC)) { -+ vma_m = kmem_cache_zalloc(vm_area_cachep, GFP_KERNEL); -+ if (!vma_m) { -+ kmem_cache_free(vm_area_cachep, vma); -+ vm_unacct_memory(charged); -+ return -ENOMEM; -+ } -+ } -+#endif -+ - vma->vm_mm = mm; - vma->vm_start = addr; - vma->vm_end = addr + len; -@@ -2074,11 +2485,12 @@ unsigned long do_brk(unsigned long addr, - vma->vm_page_prot = vm_get_page_prot(flags); - vma_link(mm, vma, prev, rb_link, rb_parent); - out: -- mm->total_vm += len >> PAGE_SHIFT; -+ mm->total_vm += charged; - if (flags & VM_LOCKED) { - if (!mlock_vma_pages_range(vma, addr, addr + len)) -- mm->locked_vm += (len >> PAGE_SHIFT); -+ mm->locked_vm += charged; - } -+ track_exec_limit(mm, addr, addr + len, flags); - return addr; - } - -@@ -2124,8 +2536,10 @@ void exit_mmap(struct mm_struct *mm) - * Walk the list again, actually closing and freeing it, - * with preemption enabled, without holding any MM locks. - */ -- while (vma) -+ while (vma) { -+ vma->vm_mirror = NULL; - vma = remove_vma(vma); -+ } - - BUG_ON(mm->nr_ptes > (FIRST_USER_ADDRESS+PMD_SIZE-1)>>PMD_SHIFT); - } -@@ -2139,6 +2553,10 @@ int insert_vm_struct(struct mm_struct * - struct vm_area_struct * __vma, * prev; - struct rb_node ** rb_link, * rb_parent; - -+#ifdef CONFIG_PAX_SEGMEXEC -+ struct vm_area_struct *vma_m = NULL; -+#endif -+ - /* - * The vm_pgoff of a purely anonymous vma should be irrelevant - * until its first write fault, when page's anon_vma and index -@@ -2161,7 +2579,22 @@ int insert_vm_struct(struct mm_struct * - if ((vma->vm_flags & VM_ACCOUNT) && - security_vm_enough_memory_mm(mm, vma_pages(vma))) - return -ENOMEM; -+ -+#ifdef CONFIG_PAX_SEGMEXEC -+ if ((mm->pax_flags & MF_PAX_SEGMEXEC) && (vma->vm_flags & VM_EXEC)) { -+ vma_m = kmem_cache_zalloc(vm_area_cachep, GFP_KERNEL); -+ if (!vma_m) -+ return -ENOMEM; -+ } -+#endif -+ - vma_link(mm, vma, prev, rb_link, rb_parent); -+ -+#ifdef CONFIG_PAX_SEGMEXEC -+ if (vma_m) -+ pax_mirror_vma(vma_m, vma); -+#endif -+ - return 0; - } - -@@ -2179,6 +2612,8 @@ struct vm_area_struct *copy_vma(struct v - struct rb_node **rb_link, *rb_parent; - struct mempolicy *pol; - -+ BUG_ON(vma->vm_mirror); -+ - /* - * If anonymous vma has not yet been faulted, update new pgoff - * to match new location, to increase its chance of merging. -@@ -2222,6 +2657,35 @@ struct vm_area_struct *copy_vma(struct v - return new_vma; - } - -+#ifdef CONFIG_PAX_SEGMEXEC -+void pax_mirror_vma(struct vm_area_struct *vma_m, struct vm_area_struct *vma) -+{ -+ struct vm_area_struct *prev_m; -+ struct rb_node **rb_link_m, *rb_parent_m; -+ struct mempolicy *pol_m; -+ -+ BUG_ON(!(vma->vm_mm->pax_flags & MF_PAX_SEGMEXEC) || !(vma->vm_flags & VM_EXEC)); -+ BUG_ON(vma->vm_mirror || vma_m->vm_mirror); -+ BUG_ON(!mpol_equal(vma_policy(vma), vma_policy(vma_m))); -+ *vma_m = *vma; -+ pol_m = vma_policy(vma_m); -+ mpol_get(pol_m); -+ vma_set_policy(vma_m, pol_m); -+ vma_m->vm_start += SEGMEXEC_TASK_SIZE; -+ vma_m->vm_end += SEGMEXEC_TASK_SIZE; -+ vma_m->vm_flags &= ~(VM_WRITE | VM_MAYWRITE | VM_ACCOUNT | VM_LOCKED); -+ vma_m->vm_page_prot = vm_get_page_prot(vma_m->vm_flags); -+ if (vma_m->vm_file) -+ get_file(vma_m->vm_file); -+ if (vma_m->vm_ops && vma_m->vm_ops->open) -+ vma_m->vm_ops->open(vma_m); -+ find_vma_prepare(vma->vm_mm, vma_m->vm_start, &prev_m, &rb_link_m, &rb_parent_m); -+ vma_link(vma->vm_mm, vma_m, prev_m, rb_link_m, rb_parent_m); -+ vma_m->vm_mirror = vma; -+ vma->vm_mirror = vma_m; -+} -+#endif -+ - /* - * Return true if the calling process may expand its vm space by the passed - * number of pages -@@ -2232,7 +2696,7 @@ int may_expand_vm(struct mm_struct *mm, - unsigned long lim; - - lim = current->signal->rlim[RLIMIT_AS].rlim_cur >> PAGE_SHIFT; -- -+ gr_learn_resource(current, RLIMIT_AS, (cur + npages) << PAGE_SHIFT, 1); - if (cur + npages > lim) - return 0; - return 1; -@@ -2301,6 +2765,15 @@ int install_special_mapping(struct mm_st - vma->vm_start = addr; - vma->vm_end = addr + len; - -+#ifdef CONFIG_PAX_MPROTECT -+ if (mm->pax_flags & MF_PAX_MPROTECT) { -+ if ((vm_flags & (VM_WRITE | VM_EXEC)) != VM_EXEC) -+ vm_flags &= ~(VM_EXEC | VM_MAYEXEC); -+ else -+ vm_flags &= ~(VM_WRITE | VM_MAYWRITE); -+ } -+#endif -+ - vma->vm_flags = vm_flags | mm->def_flags | VM_DONTEXPAND; - vma->vm_page_prot = vm_get_page_prot(vma->vm_flags); - -diff -urNp linux-2.6.28.8/mm/mprotect.c linux-2.6.28.8/mm/mprotect.c ---- linux-2.6.28.8/mm/mprotect.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/mm/mprotect.c 2009-02-21 09:37:50.000000000 -0500 -@@ -22,10 +22,16 @@ - #include <linux/swap.h> - #include <linux/swapops.h> - #include <linux/mmu_notifier.h> -+ -+#ifdef CONFIG_PAX_MPROTECT -+#include <linux/elf.h> -+#endif -+ - #include <asm/uaccess.h> - #include <asm/pgtable.h> - #include <asm/cacheflush.h> - #include <asm/tlbflush.h> -+#include <asm/mmu_context.h> - - #ifndef pgprot_modify - static inline pgprot_t pgprot_modify(pgprot_t oldprot, pgprot_t newprot) -@@ -133,6 +139,48 @@ static void change_protection(struct vm_ - flush_tlb_range(vma, start, end); - } - -+#ifdef CONFIG_ARCH_TRACK_EXEC_LIMIT -+/* called while holding the mmap semaphor for writing except stack expansion */ -+void track_exec_limit(struct mm_struct *mm, unsigned long start, unsigned long end, unsigned long prot) -+{ -+ unsigned long oldlimit, newlimit = 0UL; -+ -+ if (!(mm->pax_flags & MF_PAX_PAGEEXEC) || nx_enabled) -+ return; -+ -+ spin_lock(&mm->page_table_lock); -+ oldlimit = mm->context.user_cs_limit; -+ if ((prot & VM_EXEC) && oldlimit < end) -+ /* USER_CS limit moved up */ -+ newlimit = end; -+ else if (!(prot & VM_EXEC) && start < oldlimit && oldlimit <= end) -+ /* USER_CS limit moved down */ -+ newlimit = start; -+ -+ if (newlimit) { -+ mm->context.user_cs_limit = newlimit; -+ -+#ifdef CONFIG_SMP -+ wmb(); -+ cpus_clear(mm->context.cpu_user_cs_mask); -+ cpu_set(smp_processor_id(), mm->context.cpu_user_cs_mask); -+#endif -+ -+ set_user_cs(mm->context.user_cs_base, mm->context.user_cs_limit, smp_processor_id()); -+ } -+ spin_unlock(&mm->page_table_lock); -+ if (newlimit == end) { -+ struct vm_area_struct *vma = find_vma(mm, oldlimit); -+ -+ for (; vma && vma->vm_start < end; vma = vma->vm_next) -+ if (is_vm_hugetlb_page(vma)) -+ hugetlb_change_protection(vma, vma->vm_start, vma->vm_end, vma->vm_page_prot); -+ else -+ change_protection(vma, vma->vm_start, vma->vm_end, vma->vm_page_prot, vma_wants_writenotify(vma)); -+ } -+} -+#endif -+ - int - mprotect_fixup(struct vm_area_struct *vma, struct vm_area_struct **pprev, - unsigned long start, unsigned long end, unsigned long newflags) -@@ -145,6 +193,14 @@ mprotect_fixup(struct vm_area_struct *vm - int error; - int dirty_accountable = 0; - -+#ifdef CONFIG_PAX_SEGMEXEC -+ struct vm_area_struct *vma_m = NULL; -+ unsigned long start_m, end_m; -+ -+ start_m = start + SEGMEXEC_TASK_SIZE; -+ end_m = end + SEGMEXEC_TASK_SIZE; -+#endif -+ - if (newflags == oldflags) { - *pprev = vma; - return 0; -@@ -165,6 +221,38 @@ mprotect_fixup(struct vm_area_struct *vm - } - } - -+#ifdef CONFIG_PAX_SEGMEXEC -+ if ((mm->pax_flags & MF_PAX_SEGMEXEC) && ((oldflags ^ newflags) & VM_EXEC)) { -+ if (start != vma->vm_start) { -+ error = split_vma(mm, vma, start, 1); -+ if (error) -+ goto fail; -+ BUG_ON(!*pprev || (*pprev)->vm_next == vma); -+ *pprev = (*pprev)->vm_next; -+ } -+ -+ if (end != vma->vm_end) { -+ error = split_vma(mm, vma, end, 0); -+ if (error) -+ goto fail; -+ } -+ -+ if (pax_find_mirror_vma(vma)) { -+ error = __do_munmap(mm, start_m, end_m - start_m); -+ if (error) -+ goto fail; -+ } else { -+ vma_m = kmem_cache_zalloc(vm_area_cachep, GFP_KERNEL); -+ if (!vma_m) { -+ error = -ENOMEM; -+ goto fail; -+ } -+ vma->vm_flags = newflags; -+ pax_mirror_vma(vma_m, vma); -+ } -+ } -+#endif -+ - /* - * First try to merge with previous and/or next vma. - */ -@@ -196,8 +284,14 @@ success: - * held in write mode. - */ - vma->vm_flags = newflags; -+ -+#ifdef CONFIG_PAX_MPROTECT -+ if (current->binfmt && current->binfmt->handle_mprotect) -+ current->binfmt->handle_mprotect(vma, newflags); -+#endif -+ - vma->vm_page_prot = pgprot_modify(vma->vm_page_prot, -- vm_get_page_prot(newflags)); -+ vm_get_page_prot(vma->vm_flags)); - - if (vma_wants_writenotify(vma)) { - vma->vm_page_prot = vm_get_page_prot(newflags & ~VM_SHARED); -@@ -238,6 +332,17 @@ SYSCALL_DEFINE3(mprotect, unsigned long, - end = start + len; - if (end <= start) - return -ENOMEM; -+ -+#ifdef CONFIG_PAX_SEGMEXEC -+ if (current->mm->pax_flags & MF_PAX_SEGMEXEC) { -+ if (end > SEGMEXEC_TASK_SIZE) -+ return -EINVAL; -+ } else -+#endif -+ -+ if (end > TASK_SIZE) -+ return -EINVAL; -+ - if (!arch_validate_prot(prot)) - return -EINVAL; - -@@ -245,7 +350,7 @@ SYSCALL_DEFINE3(mprotect, unsigned long, - /* - * Does the application expect PROT_READ to imply PROT_EXEC: - */ -- if ((prot & PROT_READ) && (current->personality & READ_IMPLIES_EXEC)) -+ if ((prot & (PROT_READ | PROT_WRITE)) && (current->personality & READ_IMPLIES_EXEC)) - prot |= PROT_EXEC; - - vm_flags = calc_vm_prot_bits(prot); -@@ -277,6 +382,16 @@ SYSCALL_DEFINE3(mprotect, unsigned long, - if (start > vma->vm_start) - prev = vma; - -+ if (!gr_acl_handle_mprotect(vma->vm_file, prot)) { -+ error = -EACCES; -+ goto out; -+ } -+ -+#ifdef CONFIG_PAX_MPROTECT -+ if (current->binfmt && current->binfmt->handle_mprotect) -+ current->binfmt->handle_mprotect(vma, vm_flags); -+#endif -+ - for (nstart = start ; ; ) { - unsigned long newflags; - -@@ -300,6 +415,9 @@ SYSCALL_DEFINE3(mprotect, unsigned long, - error = mprotect_fixup(vma, &prev, nstart, tmp, newflags); - if (error) - goto out; -+ -+ track_exec_limit(current->mm, nstart, tmp, vm_flags); -+ - nstart = tmp; - - if (nstart < prev->vm_end) -diff -urNp linux-2.6.28.8/mm/mremap.c linux-2.6.28.8/mm/mremap.c ---- linux-2.6.28.8/mm/mremap.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/mm/mremap.c 2009-02-21 09:37:50.000000000 -0500 -@@ -113,6 +113,12 @@ static void move_ptes(struct vm_area_str - continue; - pte = ptep_clear_flush(vma, old_addr, old_pte); - pte = move_pte(pte, new_vma->vm_page_prot, old_addr, new_addr); -+ -+#ifdef CONFIG_ARCH_TRACK_EXEC_LIMIT -+ if (!nx_enabled && (new_vma->vm_flags & (VM_PAGEEXEC | VM_EXEC)) == VM_PAGEEXEC) -+ pte = pte_exprotect(pte); -+#endif -+ - set_pte_at(mm, new_addr, new_pte, pte); - } - -@@ -262,6 +268,7 @@ unsigned long do_mremap(unsigned long ad - struct vm_area_struct *vma; - unsigned long ret = -EINVAL; - unsigned long charged = 0; -+ unsigned long pax_task_size = TASK_SIZE; - - if (flags & ~(MREMAP_FIXED | MREMAP_MAYMOVE)) - goto out; -@@ -280,6 +287,15 @@ unsigned long do_mremap(unsigned long ad - if (!new_len) - goto out; - -+#ifdef CONFIG_PAX_SEGMEXEC -+ if (current->mm->pax_flags & MF_PAX_SEGMEXEC) -+ pax_task_size = SEGMEXEC_TASK_SIZE; -+#endif -+ -+ if (new_len > pax_task_size || addr > pax_task_size-new_len || -+ old_len > pax_task_size || addr > pax_task_size-old_len) -+ goto out; -+ - /* new_addr is only valid if MREMAP_FIXED is specified */ - if (flags & MREMAP_FIXED) { - if (new_addr & ~PAGE_MASK) -@@ -287,16 +303,13 @@ unsigned long do_mremap(unsigned long ad - if (!(flags & MREMAP_MAYMOVE)) - goto out; - -- if (new_len > TASK_SIZE || new_addr > TASK_SIZE - new_len) -+ if (new_addr > pax_task_size - new_len) - goto out; - - /* Check if the location we're moving into overlaps the - * old location at all, and fail if it does. - */ -- if ((new_addr <= addr) && (new_addr+new_len) > addr) -- goto out; -- -- if ((addr <= new_addr) && (addr+old_len) > new_addr) -+ if (addr + old_len > new_addr && new_addr + new_len > addr) - goto out; - - ret = security_file_mmap(NULL, 0, 0, 0, new_addr, 1); -@@ -334,6 +347,14 @@ unsigned long do_mremap(unsigned long ad - ret = -EINVAL; - goto out; - } -+ -+#ifdef CONFIG_PAX_SEGMEXEC -+ if (pax_find_mirror_vma(vma)) { -+ ret = -EINVAL; -+ goto out; -+ } -+#endif -+ - /* We can't remap across vm area boundaries */ - if (old_len > vma->vm_end - addr) - goto out; -@@ -367,7 +388,7 @@ unsigned long do_mremap(unsigned long ad - if (old_len == vma->vm_end - addr && - !((flags & MREMAP_FIXED) && (addr != new_addr)) && - (old_len != new_len || !(flags & MREMAP_MAYMOVE))) { -- unsigned long max_addr = TASK_SIZE; -+ unsigned long max_addr = pax_task_size; - if (vma->vm_next) - max_addr = vma->vm_next->vm_start; - /* can we just expand the current mapping? */ -@@ -385,6 +406,7 @@ unsigned long do_mremap(unsigned long ad - addr + new_len); - } - ret = addr; -+ track_exec_limit(vma->vm_mm, vma->vm_start, addr + new_len, vma->vm_flags); - goto out; - } - } -@@ -395,8 +417,8 @@ unsigned long do_mremap(unsigned long ad - */ - ret = -ENOMEM; - if (flags & MREMAP_MAYMOVE) { -+ unsigned long map_flags = 0; - if (!(flags & MREMAP_FIXED)) { -- unsigned long map_flags = 0; - if (vma->vm_flags & VM_MAYSHARE) - map_flags |= MAP_SHARED; - -@@ -411,7 +433,12 @@ unsigned long do_mremap(unsigned long ad - if (ret) - goto out; - } -+ map_flags = vma->vm_flags; - ret = move_vma(vma, addr, old_len, new_len, new_addr); -+ if (!(ret & ~PAGE_MASK)) { -+ track_exec_limit(current->mm, addr, addr + old_len, 0UL); -+ track_exec_limit(current->mm, new_addr, new_addr + new_len, map_flags); -+ } - } - out: - if (ret & ~PAGE_MASK) -diff -urNp linux-2.6.28.8/mm/nommu.c linux-2.6.28.8/mm/nommu.c ---- linux-2.6.28.8/mm/nommu.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/mm/nommu.c 2009-02-21 09:37:50.000000000 -0500 -@@ -459,15 +459,6 @@ struct vm_area_struct *find_vma(struct m - } - EXPORT_SYMBOL(find_vma); - --/* -- * find a VMA -- * - we don't extend stack VMAs under NOMMU conditions -- */ --struct vm_area_struct *find_extend_vma(struct mm_struct *mm, unsigned long addr) --{ -- return find_vma(mm, addr); --} -- - int expand_stack(struct vm_area_struct *vma, unsigned long address) - { - return -ENOMEM; -diff -urNp linux-2.6.28.8/mm/page_alloc.c linux-2.6.28.8/mm/page_alloc.c ---- linux-2.6.28.8/mm/page_alloc.c 2009-03-07 10:24:49.000000000 -0500 -+++ linux-2.6.28.8/mm/page_alloc.c 2009-03-07 10:29:51.000000000 -0500 -@@ -525,6 +525,10 @@ static void __free_pages_ok(struct page - int i; - int reserved = 0; - -+#ifdef CONFIG_PAX_MEMORY_SANITIZE -+ unsigned long index = 1UL << order; -+#endif -+ - for (i = 0 ; i < (1 << order) ; ++i) - reserved += free_pages_check(page + i); - if (reserved) -@@ -535,6 +539,12 @@ static void __free_pages_ok(struct page - debug_check_no_obj_freed(page_address(page), - PAGE_SIZE << order); - } -+ -+#ifdef CONFIG_PAX_MEMORY_SANITIZE -+ for (; index; --index) -+ sanitize_highpage(page + index - 1); -+#endif -+ - arch_free_page(page, order); - kernel_map_pages(page, 1 << order, 0); - -@@ -635,8 +645,10 @@ static int prep_new_page(struct page *pa - arch_alloc_page(page, order); - kernel_map_pages(page, 1 << order, 1); - -+#ifndef CONFIG_PAX_MEMORY_SANITIZE - if (gfp_flags & __GFP_ZERO) - prep_zero_page(page, order, gfp_flags); -+#endif - - if (order && (gfp_flags & __GFP_COMP)) - prep_compound_page(page, order); -@@ -997,6 +1009,11 @@ static void free_hot_cold_page(struct pa - debug_check_no_locks_freed(page_address(page), PAGE_SIZE); - debug_check_no_obj_freed(page_address(page), PAGE_SIZE); - } -+ -+#ifdef CONFIG_PAX_MEMORY_SANITIZE -+ sanitize_highpage(page); -+#endif -+ - arch_free_page(page, 0); - kernel_map_pages(page, 1, 0); - -diff -urNp linux-2.6.28.8/mm/rmap.c linux-2.6.28.8/mm/rmap.c ---- linux-2.6.28.8/mm/rmap.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/mm/rmap.c 2009-02-21 09:37:50.000000000 -0500 -@@ -103,6 +103,10 @@ int anon_vma_prepare(struct vm_area_stru - struct mm_struct *mm = vma->vm_mm; - struct anon_vma *allocated; - -+#ifdef CONFIG_PAX_SEGMEXEC -+ struct vm_area_struct *vma_m; -+#endif -+ - anon_vma = find_mergeable_anon_vma(vma); - allocated = NULL; - if (!anon_vma) { -@@ -116,6 +120,15 @@ int anon_vma_prepare(struct vm_area_stru - /* page_table_lock to protect against threads */ - spin_lock(&mm->page_table_lock); - if (likely(!vma->anon_vma)) { -+ -+#ifdef CONFIG_PAX_SEGMEXEC -+ vma_m = pax_find_mirror_vma(vma); -+ if (vma_m) { -+ vma_m->anon_vma = anon_vma; -+ __anon_vma_link(vma_m); -+ } -+#endif -+ - vma->anon_vma = anon_vma; - list_add_tail(&vma->anon_vma_node, &anon_vma->head); - allocated = NULL; -diff -urNp linux-2.6.28.8/mm/shmem.c linux-2.6.28.8/mm/shmem.c ---- linux-2.6.28.8/mm/shmem.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/mm/shmem.c 2009-02-21 09:37:50.000000000 -0500 -@@ -2486,7 +2486,7 @@ static struct file_system_type tmpfs_fs_ - .get_sb = shmem_get_sb, - .kill_sb = kill_litter_super, - }; --static struct vfsmount *shm_mnt; -+struct vfsmount *shm_mnt; - - static int __init init_tmpfs(void) - { -diff -urNp linux-2.6.28.8/mm/slab.c linux-2.6.28.8/mm/slab.c ---- linux-2.6.28.8/mm/slab.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/mm/slab.c 2009-02-21 09:37:50.000000000 -0500 -@@ -305,7 +305,7 @@ struct kmem_list3 { - * Need this for bootstrapping a per node allocator. - */ - #define NUM_INIT_LISTS (3 * MAX_NUMNODES) --struct kmem_list3 __initdata initkmem_list3[NUM_INIT_LISTS]; -+struct kmem_list3 initkmem_list3[NUM_INIT_LISTS]; - #define CACHE_CACHE 0 - #define SIZE_AC MAX_NUMNODES - #define SIZE_L3 (2 * MAX_NUMNODES) -@@ -654,14 +654,14 @@ struct cache_names { - static struct cache_names __initdata cache_names[] = { - #define CACHE(x) { .name = "size-" #x, .name_dma = "size-" #x "(DMA)" }, - #include <linux/kmalloc_sizes.h> -- {NULL,} -+ {NULL, NULL} - #undef CACHE - }; - - static struct arraycache_init initarray_cache __initdata = -- { {0, BOOT_CPUCACHE_ENTRIES, 1, 0} }; -+ { {0, BOOT_CPUCACHE_ENTRIES, 1, 0}, {NULL} }; - static struct arraycache_init initarray_generic = -- { {0, BOOT_CPUCACHE_ENTRIES, 1, 0} }; -+ { {0, BOOT_CPUCACHE_ENTRIES, 1, 0}, {NULL} }; - - /* internal cache of cache description objs */ - static struct kmem_cache cache_cache = { -@@ -2997,7 +2997,7 @@ retry: - * there must be at least one object available for - * allocation. - */ -- BUG_ON(slabp->inuse < 0 || slabp->inuse >= cachep->num); -+ BUG_ON(slabp->inuse >= cachep->num); - - while (slabp->inuse < cachep->num && batchcount--) { - STATS_INC_ALLOCED(cachep); -@@ -4491,10 +4491,12 @@ static const struct file_operations proc - - static int __init slab_proc_init(void) - { -+#if !defined(CONFIG_GRKERNSEC_PROC_ADD) - proc_create("slabinfo",S_IWUSR|S_IRUGO,NULL,&proc_slabinfo_operations); - #ifdef CONFIG_DEBUG_SLAB_LEAK - proc_create("slab_allocators", 0, NULL, &proc_slabstats_operations); - #endif -+#endif - return 0; - } - module_init(slab_proc_init); -diff -urNp linux-2.6.28.8/mm/slub.c linux-2.6.28.8/mm/slub.c ---- linux-2.6.28.8/mm/slub.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/mm/slub.c 2009-02-21 09:37:50.000000000 -0500 -@@ -4508,7 +4508,9 @@ static const struct file_operations proc - - static int __init slab_proc_init(void) - { -+#if !defined(CONFIG_GRKERNSEC_PROC_ADD) - proc_create("slabinfo",S_IWUSR|S_IRUGO,NULL,&proc_slabinfo_operations); -+#endif - return 0; - } - module_init(slab_proc_init); -diff -urNp linux-2.6.28.8/mm/tiny-shmem.c linux-2.6.28.8/mm/tiny-shmem.c ---- linux-2.6.28.8/mm/tiny-shmem.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/mm/tiny-shmem.c 2009-02-21 09:37:50.000000000 -0500 -@@ -26,7 +26,7 @@ static struct file_system_type tmpfs_fs_ - .kill_sb = kill_litter_super, - }; - --static struct vfsmount *shm_mnt; -+struct vfsmount *shm_mnt; - - static int __init init_tmpfs(void) - { -diff -urNp linux-2.6.28.8/mm/util.c linux-2.6.28.8/mm/util.c ---- linux-2.6.28.8/mm/util.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/mm/util.c 2009-02-21 09:37:50.000000000 -0500 -@@ -167,6 +167,12 @@ EXPORT_SYMBOL(strndup_user); - void arch_pick_mmap_layout(struct mm_struct *mm) - { - mm->mmap_base = TASK_UNMAPPED_BASE; -+ -+#ifdef CONFIG_PAX_RANDMMAP -+ if (mm->pax_flags & MF_PAX_RANDMMAP) -+ mm->mmap_base += mm->delta_mmap; -+#endif -+ - mm->get_unmapped_area = arch_get_unmapped_area; - mm->unmap_area = arch_unmap_area; - } -diff -urNp linux-2.6.28.8/mm/vmalloc.c linux-2.6.28.8/mm/vmalloc.c ---- linux-2.6.28.8/mm/vmalloc.c 2009-03-07 10:24:49.000000000 -0500 -+++ linux-2.6.28.8/mm/vmalloc.c 2009-03-07 10:29:51.000000000 -0500 -@@ -90,6 +90,11 @@ static int vmap_pte_range(pmd_t *pmd, un - unsigned long end, pgprot_t prot, struct page **pages, int *nr) - { - pte_t *pte; -+ int ret = -ENOMEM; -+ -+#ifdef CONFIG_PAX_KERNEXEC -+ unsigned long cr0; -+#endif - - /* - * nr is a running index into the array which helps higher level -@@ -99,17 +104,33 @@ static int vmap_pte_range(pmd_t *pmd, un - pte = pte_alloc_kernel(pmd, addr); - if (!pte) - return -ENOMEM; -+ -+#ifdef CONFIG_PAX_KERNEXEC -+ pax_open_kernel(cr0); -+#endif -+ - do { - struct page *page = pages[*nr]; - -- if (WARN_ON(!pte_none(*pte))) -- return -EBUSY; -- if (WARN_ON(!page)) -- return -ENOMEM; -+ if (WARN_ON(!pte_none(*pte))) { -+ ret = -EBUSY; -+ goto out; -+ } -+ if (WARN_ON(!page)) { -+ ret = -ENOMEM; -+ goto out; -+ } - set_pte_at(&init_mm, addr, pte, mk_pte(page, prot)); - (*nr)++; - } while (pte++, addr += PAGE_SIZE, addr != end); -- return 0; -+ ret = 0; -+out: -+ -+#ifdef CONFIG_PAX_KERNEXEC -+ pax_close_kernel(cr0); -+#endif -+ -+ return ret; - } - - static int vmap_pmd_range(pud_t *pud, unsigned long addr, -@@ -1033,6 +1054,16 @@ static struct vm_struct *__get_vm_area_n - unsigned long align = 1; - - BUG_ON(in_interrupt()); -+ -+#if defined(CONFIG_MODULES) && defined(CONFIG_X86_32) && defined(CONFIG_PAX_KERNEXEC) -+ if (flags & VM_KERNEXEC) { -+ if (start != VMALLOC_START || end != VMALLOC_END) -+ return NULL; -+ start = (unsigned long)MODULES_VADDR; -+ end = (unsigned long)MODULES_END; -+ } -+#endif -+ - if (flags & VM_IOREMAP) { - int bit = fls(size); - -@@ -1256,6 +1287,11 @@ void *vmap(struct page **pages, unsigned - if (count > num_physpages) - return NULL; - -+#if defined(CONFIG_MODULES) && defined(CONFIG_X86_32) && defined(CONFIG_PAX_KERNEXEC) -+ if (!(pgprot_val(prot) & _PAGE_NX)) -+ flags |= VM_KERNEXEC; -+#endif -+ - area = get_vm_area_caller((count << PAGE_SHIFT), flags, - __builtin_return_address(0)); - if (!area) -@@ -1352,6 +1388,13 @@ static void *__vmalloc_node(unsigned lon - if (!size || (size >> PAGE_SHIFT) > num_physpages) - return NULL; - -+#if defined(CONFIG_MODULES) && defined(CONFIG_X86_32) && defined(CONFIG_PAX_KERNEXEC) -+ if (!(pgprot_val(prot) & _PAGE_NX)) -+ area = __get_vm_area_node(size, VM_ALLOC | VM_KERNEXEC, VMALLOC_START, VMALLOC_END, -+ node, gfp_mask, caller); -+ else -+#endif -+ - area = __get_vm_area_node(size, VM_ALLOC, VMALLOC_START, VMALLOC_END, - node, gfp_mask, caller); - -@@ -1441,7 +1484,7 @@ EXPORT_SYMBOL(vmalloc_node); - - void *vmalloc_exec(unsigned long size) - { -- return __vmalloc(size, GFP_KERNEL | __GFP_HIGHMEM, PAGE_KERNEL_EXEC); -+ return __vmalloc(size, GFP_KERNEL | __GFP_HIGHMEM | __GFP_ZERO, PAGE_KERNEL_EXEC); - } - - #if defined(CONFIG_64BIT) && defined(CONFIG_ZONE_DMA32) -diff -urNp linux-2.6.28.8/net/bridge/br_stp_if.c linux-2.6.28.8/net/bridge/br_stp_if.c ---- linux-2.6.28.8/net/bridge/br_stp_if.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/net/bridge/br_stp_if.c 2009-02-21 09:37:50.000000000 -0500 -@@ -146,7 +146,7 @@ static void br_stp_stop(struct net_bridg - char *envp[] = { NULL }; - - if (br->stp_enabled == BR_USER_STP) { -- r = call_usermodehelper(BR_STP_PROG, argv, envp, 1); -+ r = call_usermodehelper(BR_STP_PROG, argv, envp, UMH_WAIT_PROC); - printk(KERN_INFO "%s: userspace STP stopped, return code %d\n", - br->dev->name, r); - -diff -urNp linux-2.6.28.8/net/core/flow.c linux-2.6.28.8/net/core/flow.c ---- linux-2.6.28.8/net/core/flow.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/net/core/flow.c 2009-02-21 09:37:50.000000000 -0500 -@@ -39,7 +39,7 @@ atomic_t flow_cache_genid = ATOMIC_INIT( - - static u32 flow_hash_shift; - #define flow_hash_size (1 << flow_hash_shift) --static DEFINE_PER_CPU(struct flow_cache_entry **, flow_tables) = { NULL }; -+static DEFINE_PER_CPU(struct flow_cache_entry **, flow_tables); - - #define flow_table(cpu) (per_cpu(flow_tables, cpu)) - -@@ -52,7 +52,7 @@ struct flow_percpu_info { - u32 hash_rnd; - int count; - }; --static DEFINE_PER_CPU(struct flow_percpu_info, flow_hash_info) = { 0 }; -+static DEFINE_PER_CPU(struct flow_percpu_info, flow_hash_info); - - #define flow_hash_rnd_recalc(cpu) \ - (per_cpu(flow_hash_info, cpu).hash_rnd_recalc) -@@ -69,7 +69,7 @@ struct flow_flush_info { - atomic_t cpuleft; - struct completion completion; - }; --static DEFINE_PER_CPU(struct tasklet_struct, flow_flush_tasklets) = { NULL }; -+static DEFINE_PER_CPU(struct tasklet_struct, flow_flush_tasklets); - - #define flow_flush_tasklet(cpu) (&per_cpu(flow_flush_tasklets, cpu)) - -diff -urNp linux-2.6.28.8/net/dccp/ccids/ccid3.c linux-2.6.28.8/net/dccp/ccids/ccid3.c ---- linux-2.6.28.8/net/dccp/ccids/ccid3.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/net/dccp/ccids/ccid3.c 2009-02-21 09:37:50.000000000 -0500 -@@ -43,7 +43,7 @@ - static int ccid3_debug; - #define ccid3_pr_debug(format, a...) DCCP_PR_DEBUG(ccid3_debug, format, ##a) - #else --#define ccid3_pr_debug(format, a...) -+#define ccid3_pr_debug(format, a...) do {} while (0) - #endif - - /* -diff -urNp linux-2.6.28.8/net/dccp/dccp.h linux-2.6.28.8/net/dccp/dccp.h ---- linux-2.6.28.8/net/dccp/dccp.h 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/net/dccp/dccp.h 2009-02-21 09:37:50.000000000 -0500 -@@ -43,8 +43,8 @@ extern int dccp_debug; - #define dccp_pr_debug(format, a...) DCCP_PR_DEBUG(dccp_debug, format, ##a) - #define dccp_pr_debug_cat(format, a...) DCCP_PRINTK(dccp_debug, format, ##a) - #else --#define dccp_pr_debug(format, a...) --#define dccp_pr_debug_cat(format, a...) -+#define dccp_pr_debug(format, a...) do {} while (0) -+#define dccp_pr_debug_cat(format, a...) do {} while (0) - #endif - - extern struct inet_hashinfo dccp_hashinfo; -diff -urNp linux-2.6.28.8/net/ipv4/inet_connection_sock.c linux-2.6.28.8/net/ipv4/inet_connection_sock.c ---- linux-2.6.28.8/net/ipv4/inet_connection_sock.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/net/ipv4/inet_connection_sock.c 2009-02-21 09:37:50.000000000 -0500 -@@ -15,6 +15,7 @@ - - #include <linux/module.h> - #include <linux/jhash.h> -+#include <linux/security.h> - - #include <net/inet_connection_sock.h> - #include <net/inet_hashtables.h> -diff -urNp linux-2.6.28.8/net/ipv4/inet_hashtables.c linux-2.6.28.8/net/ipv4/inet_hashtables.c ---- linux-2.6.28.8/net/ipv4/inet_hashtables.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/net/ipv4/inet_hashtables.c 2009-02-21 09:37:50.000000000 -0500 -@@ -18,11 +18,14 @@ - #include <linux/sched.h> - #include <linux/slab.h> - #include <linux/wait.h> -+#include <linux/security.h> - - #include <net/inet_connection_sock.h> - #include <net/inet_hashtables.h> - #include <net/ip.h> - -+extern void gr_update_task_in_ip_table(struct task_struct *task, const struct inet_sock *inet); -+ - /* - * Allocate and initialize a new local port bind bucket. - * The bindhash mutex for snum's hash chain must be held here. -@@ -487,6 +490,8 @@ ok: - } - spin_unlock(&head->lock); - -+ gr_update_task_in_ip_table(current, inet_sk(sk)); -+ - if (tw) { - inet_twsk_deschedule(tw, death_row); - inet_twsk_put(tw); -diff -urNp linux-2.6.28.8/net/ipv4/netfilter/ipt_stealth.c linux-2.6.28.8/net/ipv4/netfilter/ipt_stealth.c ---- linux-2.6.28.8/net/ipv4/netfilter/ipt_stealth.c 1969-12-31 19:00:00.000000000 -0500 -+++ linux-2.6.28.8/net/ipv4/netfilter/ipt_stealth.c 2009-02-21 09:37:50.000000000 -0500 -@@ -0,0 +1,114 @@ -+/* Kernel module to add stealth support. -+ * -+ * Copyright (C) 2002-2006 Brad Spengler <spender@grsecurity.net> -+ * -+ */ -+ -+#include <linux/kernel.h> -+#include <linux/module.h> -+#include <linux/skbuff.h> -+#include <linux/net.h> -+#include <linux/sched.h> -+#include <linux/inet.h> -+#include <linux/stddef.h> -+ -+#include <net/ip.h> -+#include <net/sock.h> -+#include <net/tcp.h> -+#include <net/udp.h> -+#include <net/route.h> -+#include <net/inet_common.h> -+ -+#include <linux/netfilter_ipv4/ip_tables.h> -+ -+MODULE_LICENSE("GPL"); -+ -+extern struct sock *udp_v4_lookup(struct net *net, u32 saddr, u16 sport, u32 daddr, u16 dport, int dif); -+ -+static bool -+match(const struct sk_buff *skb, -+ const struct net_device *in, -+ const struct net_device *out, -+ const struct xt_match *match, -+ const void *matchinfo, -+ int offset, -+ unsigned int protoff, -+ bool *hotdrop) -+{ -+ struct iphdr *ip = ip_hdr(skb); -+ struct tcphdr th; -+ struct udphdr uh; -+ struct sock *sk = NULL; -+ -+ if (!ip || offset) return false; -+ -+ switch(ip->protocol) { -+ case IPPROTO_TCP: -+ if (skb_copy_bits(skb, (ip_hdr(skb))->ihl*4, &th, sizeof(th)) < 0) { -+ *hotdrop = true; -+ return false; -+ } -+ if (!(th.syn && !th.ack)) return false; -+ sk = inet_lookup_listener(dev_net(skb->dev), &tcp_hashinfo, ip->daddr, th.dest, inet_iif(skb)); -+ break; -+ case IPPROTO_UDP: -+ if (skb_copy_bits(skb, (ip_hdr(skb))->ihl*4, &uh, sizeof(uh)) < 0) { -+ *hotdrop = true; -+ return false; -+ } -+ sk = udp_v4_lookup(dev_net(skb->dev), ip->saddr, uh.source, ip->daddr, uh.dest, skb->dev->ifindex); -+ break; -+ default: -+ return false; -+ } -+ -+ if(!sk) // port is being listened on, match this -+ return true; -+ else { -+ sock_put(sk); -+ return false; -+ } -+} -+ -+/* Called when user tries to insert an entry of this type. */ -+static bool -+checkentry(const char *tablename, -+ const void *nip, -+ const struct xt_match *match, -+ void *matchinfo, -+ unsigned int hook_mask) -+{ -+ const struct ipt_ip *ip = (const struct ipt_ip *)nip; -+ -+ if(((ip->proto == IPPROTO_TCP && !(ip->invflags & IPT_INV_PROTO)) || -+ ((ip->proto == IPPROTO_UDP) && !(ip->invflags & IPT_INV_PROTO))) -+ && (hook_mask & (1 << NF_INET_LOCAL_IN))) -+ return true; -+ -+ printk("stealth: Only works on TCP and UDP for the INPUT chain.\n"); -+ -+ return false; -+} -+ -+ -+static struct xt_match stealth_match __read_mostly = { -+ .name = "stealth", -+ .family = AF_INET, -+ .match = match, -+ .checkentry = checkentry, -+ .destroy = NULL, -+ .me = THIS_MODULE -+}; -+ -+static int __init init(void) -+{ -+ return xt_register_match(&stealth_match); -+} -+ -+static void __exit fini(void) -+{ -+ xt_unregister_match(&stealth_match); -+} -+ -+module_init(init); -+module_exit(fini); -diff -urNp linux-2.6.28.8/net/ipv4/netfilter/Kconfig linux-2.6.28.8/net/ipv4/netfilter/Kconfig ---- linux-2.6.28.8/net/ipv4/netfilter/Kconfig 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/net/ipv4/netfilter/Kconfig 2009-03-07 04:29:14.000000000 -0500 -@@ -101,6 +101,21 @@ config IP_NF_MATCH_TTL - - To compile it as a module, choose M here. If unsure, say N. - -+config IP_NF_MATCH_STEALTH -+ tristate "stealth match support" -+ depends on IP_NF_IPTABLES -+ help -+ Enabling this option will drop all syn packets coming to unserved tcp -+ ports as well as all packets coming to unserved udp ports. If you -+ are using your system to route any type of packets (ie. via NAT) -+ you should put this module at the end of your ruleset, since it will -+ drop packets that aren't going to ports that are listening on your -+ machine itself, it doesn't take into account that the packet might be -+ destined for someone on your internal network if you're using NAT for -+ instance. -+ -+ To compile it as a module, choose M here. If unsure, say N. -+ - # `filter', generic and specific targets - config IP_NF_FILTER - tristate "Packet filtering" -diff -urNp linux-2.6.28.8/net/ipv4/netfilter/Makefile linux-2.6.28.8/net/ipv4/netfilter/Makefile ---- linux-2.6.28.8/net/ipv4/netfilter/Makefile 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/net/ipv4/netfilter/Makefile 2009-02-21 09:37:50.000000000 -0500 -@@ -61,6 +61,7 @@ obj-$(CONFIG_IP_NF_TARGET_MASQUERADE) += - obj-$(CONFIG_IP_NF_TARGET_NETMAP) += ipt_NETMAP.o - obj-$(CONFIG_IP_NF_TARGET_REDIRECT) += ipt_REDIRECT.o - obj-$(CONFIG_IP_NF_TARGET_REJECT) += ipt_REJECT.o -+obj-$(CONFIG_IP_NF_MATCH_STEALTH) += ipt_stealth.o - obj-$(CONFIG_IP_NF_TARGET_TTL) += ipt_TTL.o - obj-$(CONFIG_IP_NF_TARGET_ULOG) += ipt_ULOG.o - -diff -urNp linux-2.6.28.8/net/ipv4/tcp_ipv4.c linux-2.6.28.8/net/ipv4/tcp_ipv4.c ---- linux-2.6.28.8/net/ipv4/tcp_ipv4.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/net/ipv4/tcp_ipv4.c 2009-02-21 09:37:50.000000000 -0500 -@@ -55,6 +55,7 @@ - #include <linux/fcntl.h> - #include <linux/module.h> - #include <linux/random.h> -+#include <linux/security.h> - #include <linux/cache.h> - #include <linux/jhash.h> - #include <linux/init.h> -diff -urNp linux-2.6.28.8/net/ipv4/udp.c linux-2.6.28.8/net/ipv4/udp.c ---- linux-2.6.28.8/net/ipv4/udp.c 2009-02-08 00:54:28.000000000 -0500 -+++ linux-2.6.28.8/net/ipv4/udp.c 2009-02-21 09:37:50.000000000 -0500 -@@ -84,6 +84,7 @@ - #include <linux/types.h> - #include <linux/fcntl.h> - #include <linux/module.h> -+#include <linux/security.h> - #include <linux/socket.h> - #include <linux/sockios.h> - #include <linux/igmp.h> -@@ -104,6 +105,9 @@ - #include <net/xfrm.h> - #include "udp_impl.h" - -+extern int gr_search_udp_recvmsg(struct sock *sk, const struct sk_buff *skb); -+extern int gr_search_udp_sendmsg(struct sock *sk, struct sockaddr_in *addr); -+ - /* - * Snmp MIB for the UDP layer - */ -@@ -284,6 +288,13 @@ struct sock *udp4_lib_lookup(struct net - } - EXPORT_SYMBOL_GPL(udp4_lib_lookup); - -+struct sock *udp_v4_lookup(struct net *net, __be32 saddr, __be16 sport, -+ __be32 daddr, __be16 dport, int dif) -+{ -+ return __udp4_lib_lookup(net, saddr, sport, daddr, dport, dif, udp_hash); -+} -+ -+ - static inline struct sock *udp_v4_mcast_next(struct net *net, struct sock *sk, - __be16 loc_port, __be32 loc_addr, - __be16 rmt_port, __be32 rmt_addr, -@@ -574,9 +585,18 @@ int udp_sendmsg(struct kiocb *iocb, stru - dport = usin->sin_port; - if (dport == 0) - return -EINVAL; -+ -+ err = gr_search_udp_sendmsg(sk, usin); -+ if (err) -+ return err; - } else { - if (sk->sk_state != TCP_ESTABLISHED) - return -EDESTADDRREQ; -+ -+ err = gr_search_udp_sendmsg(sk, NULL); -+ if (err) -+ return err; -+ - daddr = inet->daddr; - dport = inet->dport; - /* Open fast path for connected socket. -@@ -842,6 +862,10 @@ try_again: - if (!skb) - goto out; - -+ err = gr_search_udp_recvmsg(sk, skb); -+ if (err) -+ goto out_free; -+ - ulen = skb->len - sizeof(struct udphdr); - copied = len; - if (copied > ulen) -diff -urNp linux-2.6.28.8/net/ipv6/exthdrs.c linux-2.6.28.8/net/ipv6/exthdrs.c ---- linux-2.6.28.8/net/ipv6/exthdrs.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/net/ipv6/exthdrs.c 2009-02-21 09:37:50.000000000 -0500 -@@ -630,7 +630,7 @@ static struct tlvtype_proc tlvprochopopt - .type = IPV6_TLV_JUMBO, - .func = ipv6_hop_jumbo, - }, -- { -1, } -+ { -1, NULL } - }; - - int ipv6_parse_hopopts(struct sk_buff *skb) -diff -urNp linux-2.6.28.8/net/ipv6/raw.c linux-2.6.28.8/net/ipv6/raw.c ---- linux-2.6.28.8/net/ipv6/raw.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/net/ipv6/raw.c 2009-02-21 09:37:50.000000000 -0500 -@@ -600,7 +600,7 @@ out: - return err; - } - --static int rawv6_send_hdrinc(struct sock *sk, void *from, int length, -+static int rawv6_send_hdrinc(struct sock *sk, void *from, unsigned int length, - struct flowi *fl, struct rt6_info *rt, - unsigned int flags) - { -diff -urNp linux-2.6.28.8/net/irda/ircomm/ircomm_tty.c linux-2.6.28.8/net/irda/ircomm/ircomm_tty.c ---- linux-2.6.28.8/net/irda/ircomm/ircomm_tty.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/net/irda/ircomm/ircomm_tty.c 2009-02-21 09:37:50.000000000 -0500 -@@ -371,7 +371,7 @@ static int ircomm_tty_open(struct tty_st - IRDA_DEBUG(2, "%s()\n", __func__ ); - - line = tty->index; -- if ((line < 0) || (line >= IRCOMM_TTY_PORTS)) { -+ if (line >= IRCOMM_TTY_PORTS) { - return -ENODEV; - } - -diff -urNp linux-2.6.28.8/net/sctp/socket.c linux-2.6.28.8/net/sctp/socket.c ---- linux-2.6.28.8/net/sctp/socket.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/net/sctp/socket.c 2009-02-21 09:37:50.000000000 -0500 -@@ -1434,7 +1434,7 @@ SCTP_STATIC int sctp_sendmsg(struct kioc - struct sctp_sndrcvinfo *sinfo; - struct sctp_initmsg *sinit; - sctp_assoc_t associd = 0; -- sctp_cmsgs_t cmsgs = { NULL }; -+ sctp_cmsgs_t cmsgs = { NULL, NULL }; - int err; - sctp_scope_t scope; - long timeo; -@@ -5616,7 +5616,6 @@ pp_found: - */ - int reuse = sk->sk_reuse; - struct sock *sk2; -- struct hlist_node *node; - - SCTP_DEBUG_PRINTK("sctp_get_port() found a possible match\n"); - if (pp->fastreuse && sk->sk_reuse && -diff -urNp linux-2.6.28.8/net/socket.c linux-2.6.28.8/net/socket.c ---- linux-2.6.28.8/net/socket.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/net/socket.c 2009-03-07 04:29:14.000000000 -0500 -@@ -87,6 +87,7 @@ - #include <linux/audit.h> - #include <linux/wireless.h> - #include <linux/nsproxy.h> -+#include <linux/in.h> - - #include <asm/uaccess.h> - #include <asm/unistd.h> -@@ -97,6 +98,21 @@ - #include <net/sock.h> - #include <linux/netfilter.h> - -+extern void gr_attach_curr_ip(const struct sock *sk); -+extern int gr_handle_sock_all(const int family, const int type, -+ const int protocol); -+extern int gr_handle_sock_server(const struct sockaddr *sck); -+extern int gr_handle_sock_server_other(const struct socket *sck); -+extern int gr_handle_sock_client(const struct sockaddr *sck); -+extern int gr_search_connect(struct socket * sock, -+ struct sockaddr_in * addr); -+extern int gr_search_bind(struct socket * sock, -+ struct sockaddr_in * addr); -+extern int gr_search_listen(struct socket * sock); -+extern int gr_search_accept(struct socket * sock); -+extern int gr_search_socket(const int domain, const int type, -+ const int protocol); -+ - static int sock_no_open(struct inode *irrelevant, struct file *dontcare); - static ssize_t sock_aio_read(struct kiocb *iocb, const struct iovec *iov, - unsigned long nr_segs, loff_t pos); -@@ -300,7 +316,7 @@ static int sockfs_get_sb(struct file_sys - mnt); - } - --static struct vfsmount *sock_mnt __read_mostly; -+struct vfsmount *sock_mnt __read_mostly; - - static struct file_system_type sock_fs_type = { - .name = "sockfs", -@@ -1235,6 +1251,16 @@ SYSCALL_DEFINE3(socket, int, family, int - if (SOCK_NONBLOCK != O_NONBLOCK && (flags & SOCK_NONBLOCK)) - flags = (flags & ~SOCK_NONBLOCK) | O_NONBLOCK; - -+ if(!gr_search_socket(family, type, protocol)) { -+ retval = -EACCES; -+ goto out; -+ } -+ -+ if (gr_handle_sock_all(family, type, protocol)) { -+ retval = -EACCES; -+ goto out; -+ } -+ - retval = sock_create(family, type, protocol, &sock); - if (retval < 0) - goto out; -@@ -1374,6 +1400,14 @@ SYSCALL_DEFINE3(bind, int, fd, struct so - if (sock) { - err = move_addr_to_kernel(umyaddr, addrlen, (struct sockaddr *)&address); - if (err >= 0) { -+ if (gr_handle_sock_server((struct sockaddr *)&address)) { -+ err = -EACCES; -+ goto error; -+ } -+ err = gr_search_bind(sock, (struct sockaddr_in *)&address); -+ if (err) -+ goto error; -+ - err = security_socket_bind(sock, - (struct sockaddr *)&address, - addrlen); -@@ -1382,6 +1416,7 @@ SYSCALL_DEFINE3(bind, int, fd, struct so - (struct sockaddr *) - &address, addrlen); - } -+error: - fput_light(sock->file, fput_needed); - } - return err; -@@ -1405,10 +1440,20 @@ SYSCALL_DEFINE2(listen, int, fd, int, ba - if ((unsigned)backlog > somaxconn) - backlog = somaxconn; - -+ if (gr_handle_sock_server_other(sock)) { -+ err = -EPERM; -+ goto error; -+ } -+ -+ err = gr_search_listen(sock); -+ if (err) -+ goto error; -+ - err = security_socket_listen(sock, backlog); - if (!err) - err = sock->ops->listen(sock, backlog); - -+error: - fput_light(sock->file, fput_needed); - } - return err; -@@ -1451,6 +1496,18 @@ SYSCALL_DEFINE4(accept4, int, fd, struct - newsock->type = sock->type; - newsock->ops = sock->ops; - -+ if (gr_handle_sock_server_other(sock)) { -+ err = -EPERM; -+ sock_release(newsock); -+ goto out_put; -+ } -+ -+ err = gr_search_accept(sock); -+ if (err) { -+ sock_release(newsock); -+ goto out_put; -+ } -+ - /* - * We don't need try_module_get here, as the listening socket (sock) - * has the protocol module (sock->ops->owner) held. -@@ -1494,6 +1551,7 @@ SYSCALL_DEFINE4(accept4, int, fd, struct - err = newfd; - - security_socket_post_accept(sock, newsock); -+ gr_attach_curr_ip(newsock->sk); - - out_put: - fput_light(sock->file, fput_needed); -@@ -1532,6 +1590,7 @@ SYSCALL_DEFINE3(connect, int, fd, struct - int, addrlen) - { - struct socket *sock; -+ struct sockaddr *sck; - struct sockaddr_storage address; - int err, fput_needed; - -@@ -1542,6 +1601,17 @@ SYSCALL_DEFINE3(connect, int, fd, struct - if (err < 0) - goto out_put; - -+ sck = (struct sockaddr *)&address; -+ -+ if (gr_handle_sock_client(sck)) { -+ err = -EACCES; -+ goto out_put; -+ } -+ -+ err = gr_search_connect(sock, (struct sockaddr_in *)sck); -+ if (err) -+ goto out_put; -+ - err = - security_socket_connect(sock, (struct sockaddr *)&address, addrlen); - if (err) -diff -urNp linux-2.6.28.8/net/unix/af_unix.c linux-2.6.28.8/net/unix/af_unix.c ---- linux-2.6.28.8/net/unix/af_unix.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/net/unix/af_unix.c 2009-02-21 09:37:50.000000000 -0500 -@@ -727,6 +727,12 @@ static struct sock *unix_find_other(stru - err = -ECONNREFUSED; - if (!S_ISSOCK(inode->i_mode)) - goto put_fail; -+ -+ if (!gr_acl_handle_unix(path.dentry, path.mnt)) { -+ err = -EACCES; -+ goto put_fail; -+ } -+ - u = unix_find_socket_byinode(net, inode); - if (!u) - goto put_fail; -@@ -747,6 +753,13 @@ static struct sock *unix_find_other(stru - if (u) { - struct dentry *dentry; - dentry = unix_sk(u)->dentry; -+ -+ if (!gr_handle_chroot_unix(u->sk_peercred.pid)) { -+ err = -EPERM; -+ sock_put(u); -+ goto fail; -+ } -+ - if (dentry) - touch_atime(unix_sk(u)->mnt, dentry); - } else -@@ -829,10 +842,20 @@ static int unix_bind(struct socket *sock - err = mnt_want_write(nd.path.mnt); - if (err) - goto out_mknod_dput; -+ -+ if (!gr_acl_handle_mknod(dentry, nd.path.dentry, nd.path.mnt, mode)) { -+ err = -EACCES; -+ mnt_drop_write(nd.path.mnt); -+ goto out_mknod_dput; -+ } -+ - err = vfs_mknod(nd.path.dentry->d_inode, dentry, mode, 0); - mnt_drop_write(nd.path.mnt); - if (err) - goto out_mknod_dput; -+ -+ gr_handle_create(dentry, nd.path.mnt); -+ - mutex_unlock(&nd.path.dentry->d_inode->i_mutex); - dput(nd.path.dentry); - nd.path.dentry = dentry; -@@ -850,6 +873,10 @@ static int unix_bind(struct socket *sock - goto out_unlock; - } - -+#ifdef CONFIG_GRKERNSEC_CHROOT_UNIX -+ sk->sk_peercred.pid = current->pid; -+#endif -+ - list = &unix_socket_table[addr->hash]; - } else { - list = &unix_socket_table[dentry->d_inode->i_ino & (UNIX_HASH_SIZE-1)]; -diff -urNp linux-2.6.28.8/scripts/pnmtologo.c linux-2.6.28.8/scripts/pnmtologo.c ---- linux-2.6.28.8/scripts/pnmtologo.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/scripts/pnmtologo.c 2009-02-21 09:37:50.000000000 -0500 -@@ -237,14 +237,14 @@ static void write_header(void) - fprintf(out, " * Linux logo %s\n", logoname); - fputs(" */\n\n", out); - fputs("#include <linux/linux_logo.h>\n\n", out); -- fprintf(out, "static unsigned char %s_data[] __initdata = {\n", -+ fprintf(out, "static unsigned char %s_data[] = {\n", - logoname); - } - - static void write_footer(void) - { - fputs("\n};\n\n", out); -- fprintf(out, "struct linux_logo %s __initdata = {\n", logoname); -+ fprintf(out, "struct linux_logo %s = {\n", logoname); - fprintf(out, " .type\t= %s,\n", logo_types[logo_type]); - fprintf(out, " .width\t= %d,\n", logo_width); - fprintf(out, " .height\t= %d,\n", logo_height); -@@ -374,7 +374,7 @@ static void write_logo_clut224(void) - fputs("\n};\n\n", out); - - /* write logo clut */ -- fprintf(out, "static unsigned char %s_clut[] __initdata = {\n", -+ fprintf(out, "static unsigned char %s_clut[] = {\n", - logoname); - write_hex_cnt = 0; - for (i = 0; i < logo_clutsize; i++) { -diff -urNp linux-2.6.28.8/security/commoncap.c linux-2.6.28.8/security/commoncap.c ---- linux-2.6.28.8/security/commoncap.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/security/commoncap.c 2009-03-07 04:29:14.000000000 -0500 -@@ -27,9 +27,11 @@ - #include <linux/prctl.h> - #include <linux/securebits.h> - -+extern kernel_cap_t gr_cap_rtnetlink(struct sock *sk); -+ - int cap_netlink_send(struct sock *sk, struct sk_buff *skb) - { -- NETLINK_CB(skb).eff_cap = current->cap_effective; -+ NETLINK_CB(skb).eff_cap = gr_cap_rtnetlink(sk); - return 0; - } - -@@ -56,6 +58,14 @@ int cap_capable (struct task_struct *tsk - return -EPERM; - } - -+int cap_capable_nolog (struct task_struct *tsk, int cap) -+{ -+ /* tsk = current for all callers */ -+ if (cap_raised(tsk->cap_effective, cap) && gr_is_capable_nolog(cap)) -+ return 0; -+ return -EPERM; -+} -+ - int cap_settime(struct timespec *ts, struct timezone *tz) - { - if (!capable(CAP_SYS_TIME)) -@@ -379,8 +389,11 @@ void cap_bprm_apply_creds (struct linux_ - } - } - -- current->suid = current->euid = current->fsuid = bprm->e_uid; -- current->sgid = current->egid = current->fsgid = bprm->e_gid; -+ if (!gr_check_user_change(-1, bprm->e_uid, bprm->e_uid)) -+ current->suid = current->euid = current->fsuid = bprm->e_uid; -+ -+ if (!gr_check_group_change(-1, bprm->e_gid, bprm->e_gid)) -+ current->sgid = current->egid = current->fsgid = bprm->e_gid; - - /* For init, we want to retain the capabilities set - * in the init_task struct. Thus we skip the usual -@@ -393,6 +406,8 @@ void cap_bprm_apply_creds (struct linux_ - cap_clear(current->cap_effective); - } - -+ gr_handle_chroot_caps(current); -+ - /* AUD: Audit candidate if current->cap_effective is set */ - - current->securebits &= ~issecure_mask(SECURE_KEEP_CAPS); -@@ -705,7 +720,7 @@ int cap_vm_enough_memory(struct mm_struc - { - int cap_sys_admin = 0; - -- if (cap_capable(current, CAP_SYS_ADMIN) == 0) -+ if (cap_capable_nolog(current, CAP_SYS_ADMIN) == 0) - cap_sys_admin = 1; - return __vm_enough_memory(mm, pages, cap_sys_admin); - } -diff -urNp linux-2.6.28.8/security/Kconfig linux-2.6.28.8/security/Kconfig ---- linux-2.6.28.8/security/Kconfig 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/security/Kconfig 2009-02-21 09:37:50.000000000 -0500 -@@ -4,6 +4,447 @@ - - menu "Security options" - -+source grsecurity/Kconfig -+ -+menu "PaX" -+ -+config PAX -+ bool "Enable various PaX features" -+ depends on GRKERNSEC && (ALPHA || ARM || AVR32 || IA64 || MIPS32 || MIPS64 || PARISC || PPC32 || PPC64 || SPARC32 || SPARC64 || X86) -+ help -+ This allows you to enable various PaX features. PaX adds -+ intrusion prevention mechanisms to the kernel that reduce -+ the risks posed by exploitable memory corruption bugs. -+ -+menu "PaX Control" -+ depends on PAX -+ -+config PAX_SOFTMODE -+ bool 'Support soft mode' -+ help -+ Enabling this option will allow you to run PaX in soft mode, that -+ is, PaX features will not be enforced by default, only on executables -+ marked explicitly. You must also enable PT_PAX_FLAGS support as it -+ is the only way to mark executables for soft mode use. -+ -+ Soft mode can be activated by using the "pax_softmode=1" kernel command -+ line option on boot. Furthermore you can control various PaX features -+ at runtime via the entries in /proc/sys/kernel/pax. -+ -+config PAX_EI_PAX -+ bool 'Use legacy ELF header marking' -+ help -+ Enabling this option will allow you to control PaX features on -+ a per executable basis via the 'chpax' utility available at -+ http://pax.grsecurity.net/. The control flags will be read from -+ an otherwise reserved part of the ELF header. This marking has -+ numerous drawbacks (no support for soft-mode, toolchain does not -+ know about the non-standard use of the ELF header) therefore it -+ has been deprecated in favour of PT_PAX_FLAGS support. -+ -+ If you have applications not marked by the PT_PAX_FLAGS ELF -+ program header then you MUST enable this option otherwise they -+ will not get any protection. -+ -+ Note that if you enable PT_PAX_FLAGS marking support as well, -+ the PT_PAX_FLAG marks will override the legacy EI_PAX marks. -+ -+config PAX_PT_PAX_FLAGS -+ bool 'Use ELF program header marking' -+ help -+ Enabling this option will allow you to control PaX features on -+ a per executable basis via the 'paxctl' utility available at -+ http://pax.grsecurity.net/. The control flags will be read from -+ a PaX specific ELF program header (PT_PAX_FLAGS). This marking -+ has the benefits of supporting both soft mode and being fully -+ integrated into the toolchain (the binutils patch is available -+ from http://pax.grsecurity.net). -+ -+ If you have applications not marked by the PT_PAX_FLAGS ELF -+ program header then you MUST enable the EI_PAX marking support -+ otherwise they will not get any protection. -+ -+ Note that if you enable the legacy EI_PAX marking support as well, -+ the EI_PAX marks will be overridden by the PT_PAX_FLAGS marks. -+ -+choice -+ prompt 'MAC system integration' -+ default PAX_HAVE_ACL_FLAGS -+ help -+ Mandatory Access Control systems have the option of controlling -+ PaX flags on a per executable basis, choose the method supported -+ by your particular system. -+ -+ - "none": if your MAC system does not interact with PaX, -+ - "direct": if your MAC system defines pax_set_initial_flags() itself, -+ - "hook": if your MAC system uses the pax_set_initial_flags_func callback. -+ -+ NOTE: this option is for developers/integrators only. -+ -+ config PAX_NO_ACL_FLAGS -+ bool 'none' -+ -+ config PAX_HAVE_ACL_FLAGS -+ bool 'direct' -+ -+ config PAX_HOOK_ACL_FLAGS -+ bool 'hook' -+endchoice -+ -+endmenu -+ -+menu "Non-executable pages" -+ depends on PAX -+ -+config PAX_NOEXEC -+ bool "Enforce non-executable pages" -+ depends on (PAX_EI_PAX || PAX_PT_PAX_FLAGS || PAX_HAVE_ACL_FLAGS || PAX_HOOK_ACL_FLAGS) && (ALPHA || IA64 || MIPS32 || MIPS64 || PARISC || PPC32 || PPC64 || SPARC32 || SPARC64 || X86) -+ help -+ By design some architectures do not allow for protecting memory -+ pages against execution or even if they do, Linux does not make -+ use of this feature. In practice this means that if a page is -+ readable (such as the stack or heap) it is also executable. -+ -+ There is a well known exploit technique that makes use of this -+ fact and a common programming mistake where an attacker can -+ introduce code of his choice somewhere in the attacked program's -+ memory (typically the stack or the heap) and then execute it. -+ -+ If the attacked program was running with different (typically -+ higher) privileges than that of the attacker, then he can elevate -+ his own privilege level (e.g. get a root shell, write to files for -+ which he does not have write access to, etc). -+ -+ Enabling this option will let you choose from various features -+ that prevent the injection and execution of 'foreign' code in -+ a program. -+ -+ This will also break programs that rely on the old behaviour and -+ expect that dynamically allocated memory via the malloc() family -+ of functions is executable (which it is not). Notable examples -+ are the XFree86 4.x server, the java runtime and wine. -+ -+config PAX_PAGEEXEC -+ bool "Paging based non-executable pages" -+ depends on !COMPAT_VDSO && PAX_NOEXEC && (!X86_32 || M586 || M586TSC || M586MMX || M686 || MPENTIUMII || MPENTIUMIII || MPENTIUMM || MCORE2 || MPENTIUM4 || MPSC || MK7 || MK8 || MWINCHIPC6 || MWINCHIP2 || MWINCHIP3D || MVIAC3_2 || MVIAC7) -+ help -+ This implementation is based on the paging feature of the CPU. -+ On i386 without hardware non-executable bit support there is a -+ variable but usually low performance impact, however on Intel's -+ P4 core based CPUs it is very high so you should not enable this -+ for kernels meant to be used on such CPUs. -+ -+ On alpha, avr32, ia64, parisc, sparc, sparc64, x86_64 and i386 -+ with hardware non-executable bit support there is no performance -+ impact, on ppc the impact is negligible. -+ -+ Note that several architectures require various emulations due to -+ badly designed userland ABIs, this will cause a performance impact -+ but will disappear as soon as userland is fixed (e.g., ppc users -+ can make use of the secure-plt feature found in binutils). -+ -+config PAX_SEGMEXEC -+ bool "Segmentation based non-executable pages" -+ depends on !COMPAT_VDSO && PAX_NOEXEC && X86_32 -+ help -+ This implementation is based on the segmentation feature of the -+ CPU and has a very small performance impact, however applications -+ will be limited to a 1.5 GB address space instead of the normal -+ 3 GB. -+ -+config PAX_EMUTRAMP -+ bool "Emulate trampolines" if (PAX_PAGEEXEC || PAX_SEGMEXEC) && (PARISC || PPC32 || X86) -+ default y if PARISC || PPC32 -+ help -+ There are some programs and libraries that for one reason or -+ another attempt to execute special small code snippets from -+ non-executable memory pages. Most notable examples are the -+ signal handler return code generated by the kernel itself and -+ the GCC trampolines. -+ -+ If you enabled CONFIG_PAX_PAGEEXEC or CONFIG_PAX_SEGMEXEC then -+ such programs will no longer work under your kernel. -+ -+ As a remedy you can say Y here and use the 'chpax' or 'paxctl' -+ utilities to enable trampoline emulation for the affected programs -+ yet still have the protection provided by the non-executable pages. -+ -+ On parisc and ppc you MUST enable this option and EMUSIGRT as -+ well, otherwise your system will not even boot. -+ -+ Alternatively you can say N here and use the 'chpax' or 'paxctl' -+ utilities to disable CONFIG_PAX_PAGEEXEC and CONFIG_PAX_SEGMEXEC -+ for the affected files. -+ -+ NOTE: enabling this feature *may* open up a loophole in the -+ protection provided by non-executable pages that an attacker -+ could abuse. Therefore the best solution is to not have any -+ files on your system that would require this option. This can -+ be achieved by not using libc5 (which relies on the kernel -+ signal handler return code) and not using or rewriting programs -+ that make use of the nested function implementation of GCC. -+ Skilled users can just fix GCC itself so that it implements -+ nested function calls in a way that does not interfere with PaX. -+ -+config PAX_EMUSIGRT -+ bool "Automatically emulate sigreturn trampolines" -+ depends on PAX_EMUTRAMP && (PARISC || PPC32) -+ default y -+ help -+ Enabling this option will have the kernel automatically detect -+ and emulate signal return trampolines executing on the stack -+ that would otherwise lead to task termination. -+ -+ This solution is intended as a temporary one for users with -+ legacy versions of libc (libc5, glibc 2.0, uClibc before 0.9.17, -+ Modula-3 runtime, etc) or executables linked to such, basically -+ everything that does not specify its own SA_RESTORER function in -+ normal executable memory like glibc 2.1+ does. -+ -+ On parisc and ppc you MUST enable this option, otherwise your -+ system will not even boot. -+ -+ NOTE: this feature cannot be disabled on a per executable basis -+ and since it *does* open up a loophole in the protection provided -+ by non-executable pages, the best solution is to not have any -+ files on your system that would require this option. -+ -+config PAX_MPROTECT -+ bool "Restrict mprotect()" -+ depends on (PAX_PAGEEXEC || PAX_SEGMEXEC) && !PPC64 -+ help -+ Enabling this option will prevent programs from -+ - changing the executable status of memory pages that were -+ not originally created as executable, -+ - making read-only executable pages writable again, -+ - creating executable pages from anonymous memory. -+ -+ You should say Y here to complete the protection provided by -+ the enforcement of non-executable pages. -+ -+ NOTE: you can use the 'chpax' or 'paxctl' utilities to control -+ this feature on a per file basis. -+ -+config PAX_NOELFRELOCS -+ bool "Disallow ELF text relocations" -+ depends on PAX_MPROTECT && !PAX_ETEXECRELOCS && (IA64 || X86) -+ help -+ Non-executable pages and mprotect() restrictions are effective -+ in preventing the introduction of new executable code into an -+ attacked task's address space. There remain only two venues -+ for this kind of attack: if the attacker can execute already -+ existing code in the attacked task then he can either have it -+ create and mmap() a file containing his code or have it mmap() -+ an already existing ELF library that does not have position -+ independent code in it and use mprotect() on it to make it -+ writable and copy his code there. While protecting against -+ the former approach is beyond PaX, the latter can be prevented -+ by having only PIC ELF libraries on one's system (which do not -+ need to relocate their code). If you are sure this is your case, -+ then enable this option otherwise be careful as you may not even -+ be able to boot or log on your system (for example, some PAM -+ modules are erroneously compiled as non-PIC by default). -+ -+ NOTE: if you are using dynamic ELF executables (as suggested -+ when using ASLR) then you must have made sure that you linked -+ your files using the PIC version of crt1 (the et_dyn.tar.gz package -+ referenced there has already been updated to support this). -+ -+config PAX_ETEXECRELOCS -+ bool "Allow ELF ET_EXEC text relocations" -+ depends on PAX_MPROTECT && (ALPHA || IA64 || PARISC) -+ default y -+ help -+ On some architectures there are incorrectly created applications -+ that require text relocations and would not work without enabling -+ this option. If you are an alpha, ia64 or parisc user, you should -+ enable this option and disable it once you have made sure that -+ none of your applications need it. -+ -+config PAX_EMUPLT -+ bool "Automatically emulate ELF PLT" -+ depends on PAX_MPROTECT && (ALPHA || PARISC || PPC32 || SPARC32 || SPARC64) -+ default y -+ help -+ Enabling this option will have the kernel automatically detect -+ and emulate the Procedure Linkage Table entries in ELF files. -+ On some architectures such entries are in writable memory, and -+ become non-executable leading to task termination. Therefore -+ it is mandatory that you enable this option on alpha, parisc, -+ ppc (if secure-plt is not used throughout in userland), sparc -+ and sparc64, otherwise your system would not even boot. -+ -+ NOTE: this feature *does* open up a loophole in the protection -+ provided by the non-executable pages, therefore the proper -+ solution is to modify the toolchain to produce a PLT that does -+ not need to be writable. -+ -+config PAX_DLRESOLVE -+ bool -+ depends on PAX_EMUPLT && (SPARC32 || SPARC64) -+ default y -+ -+config PAX_SYSCALL -+ bool -+ depends on PAX_PAGEEXEC && PPC32 -+ default y -+ -+config PAX_KERNEXEC -+ bool "Enforce non-executable kernel pages" -+ depends on PAX_NOEXEC && X86 && !EFI && !COMPAT_VDSO && (!X86_32 || X86_WP_WORKS_OK) && !PARAVIRT -+ help -+ This is the kernel land equivalent of PAGEEXEC and MPROTECT, -+ that is, enabling this option will make it harder to inject -+ and execute 'foreign' code in kernel memory itself. -+ -+endmenu -+ -+menu "Address Space Layout Randomization" -+ depends on PAX -+ -+config PAX_ASLR -+ bool "Address Space Layout Randomization" -+ depends on PAX_EI_PAX || PAX_PT_PAX_FLAGS || PAX_HAVE_ACL_FLAGS || PAX_HOOK_ACL_FLAGS -+ help -+ Many if not most exploit techniques rely on the knowledge of -+ certain addresses in the attacked program. The following options -+ will allow the kernel to apply a certain amount of randomization -+ to specific parts of the program thereby forcing an attacker to -+ guess them in most cases. Any failed guess will most likely crash -+ the attacked program which allows the kernel to detect such attempts -+ and react on them. PaX itself provides no reaction mechanisms, -+ instead it is strongly encouraged that you make use of Nergal's -+ segvguard (ftp://ftp.pl.openwall.com/misc/segvguard/) or grsecurity's -+ (http://www.grsecurity.net/) built-in crash detection features or -+ develop one yourself. -+ -+ By saying Y here you can choose to randomize the following areas: -+ - top of the task's kernel stack -+ - top of the task's userland stack -+ - base address for mmap() requests that do not specify one -+ (this includes all libraries) -+ - base address of the main executable -+ -+ It is strongly recommended to say Y here as address space layout -+ randomization has negligible impact on performance yet it provides -+ a very effective protection. -+ -+ NOTE: you can use the 'chpax' or 'paxctl' utilities to control -+ this feature on a per file basis. -+ -+config PAX_RANDKSTACK -+ bool "Randomize kernel stack base" -+ depends on PAX_ASLR && X86_TSC && X86_32 -+ help -+ By saying Y here the kernel will randomize every task's kernel -+ stack on every system call. This will not only force an attacker -+ to guess it but also prevent him from making use of possible -+ leaked information about it. -+ -+ Since the kernel stack is a rather scarce resource, randomization -+ may cause unexpected stack overflows, therefore you should very -+ carefully test your system. Note that once enabled in the kernel -+ configuration, this feature cannot be disabled on a per file basis. -+ -+config PAX_RANDUSTACK -+ bool "Randomize user stack base" -+ depends on PAX_ASLR -+ help -+ By saying Y here the kernel will randomize every task's userland -+ stack. The randomization is done in two steps where the second -+ one may apply a big amount of shift to the top of the stack and -+ cause problems for programs that want to use lots of memory (more -+ than 2.5 GB if SEGMEXEC is not active, or 1.25 GB when it is). -+ For this reason the second step can be controlled by 'chpax' or -+ 'paxctl' on a per file basis. -+ -+config PAX_RANDMMAP -+ bool "Randomize mmap() base" -+ depends on PAX_ASLR -+ help -+ By saying Y here the kernel will use a randomized base address for -+ mmap() requests that do not specify one themselves. As a result -+ all dynamically loaded libraries will appear at random addresses -+ and therefore be harder to exploit by a technique where an attacker -+ attempts to execute library code for his purposes (e.g. spawn a -+ shell from an exploited program that is running at an elevated -+ privilege level). -+ -+ Furthermore, if a program is relinked as a dynamic ELF file, its -+ base address will be randomized as well, completing the full -+ randomization of the address space layout. Attacking such programs -+ becomes a guess game. You can find an example of doing this at -+ http://pax.grsecurity.net/et_dyn.tar.gz and practical samples at -+ http://www.grsecurity.net/grsec-gcc-specs.tar.gz . -+ -+ NOTE: you can use the 'chpax' or 'paxctl' utilities to control this -+ feature on a per file basis. -+ -+endmenu -+ -+menu "Miscellaneous hardening features" -+ -+config PAX_MEMORY_SANITIZE -+ bool "Sanitize all freed memory" -+ help -+ By saying Y here the kernel will erase memory pages as soon as they -+ are freed. This in turn reduces the lifetime of data stored in the -+ pages, making it less likely that sensitive information such as -+ passwords, cryptographic secrets, etc stay in memory for too long. -+ -+ This is especially useful for programs whose runtime is short, long -+ lived processes and the kernel itself benefit from this as long as -+ they operate on whole memory pages and ensure timely freeing of pages -+ that may hold sensitive information. -+ -+ The tradeoff is performance impact, on a single CPU system kernel -+ compilation sees a 3% slowdown, other systems and workloads may vary -+ and you are advised to test this feature on your expected workload -+ before deploying it. -+ -+ Note that this feature does not protect data stored in live pages, -+ e.g., process memory swapped to disk may stay there for a long time. -+ -+config PAX_MEMORY_UDEREF -+ bool "Prevent invalid userland pointer dereference" -+ depends on X86_32 && !COMPAT_VDSO && !UML_X86 -+ help -+ By saying Y here the kernel will be prevented from dereferencing -+ userland pointers in contexts where the kernel expects only kernel -+ pointers. This is both a useful runtime debugging feature and a -+ security measure that prevents exploiting a class of kernel bugs. -+ -+ The tradeoff is that some virtualization solutions may experience -+ a huge slowdown and therefore you should not enable this feature -+ for kernels meant to run in such environments. Whether a given VM -+ solution is affected or not is best determined by simply trying it -+ out, the performance impact will be obvious right on boot as this -+ mechanism engages from very early on. A good rule of thumb is that -+ VMs running on CPUs without hardware virtualization support (i.e., -+ the majority of IA-32 CPUs) will likely experience the slowdown. -+ -+config PAX_REFCOUNT -+ bool "Prevent various kernel object reference counter overflows" -+ depends on X86 -+ help -+ By saying Y here the kernel will detect and prevent overflowing -+ various (but not all) kinds of object reference counters. Such -+ overflows can normally occur due to bugs only and are often, if -+ not always, exploitable. -+ -+ The tradeoff is that data structures protected by an overflowed -+ refcount will never be freed and therefore will leak memory. Note -+ that this leak also happens even without this protection but in -+ that case the overflow can eventually trigger the freeing of the -+ data structure while it is still being used elsewhere, resulting -+ in the exploitable situation that this feature prevents. -+ -+ Since this has a negligible performance impact, you should enable -+ this feature. -+endmenu -+ -+endmenu -+ - config KEYS - bool "Enable access key retention support" - help -diff -urNp linux-2.6.28.8/sound/core/oss/pcm_oss.c linux-2.6.28.8/sound/core/oss/pcm_oss.c ---- linux-2.6.28.8/sound/core/oss/pcm_oss.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/sound/core/oss/pcm_oss.c 2009-02-21 09:37:50.000000000 -0500 -@@ -2929,8 +2929,8 @@ static void snd_pcm_oss_proc_done(struct - } - } - #else /* !CONFIG_SND_VERBOSE_PROCFS */ --#define snd_pcm_oss_proc_init(pcm) --#define snd_pcm_oss_proc_done(pcm) -+#define snd_pcm_oss_proc_init(pcm) do {} while (0) -+#define snd_pcm_oss_proc_done(pcm) do {} while (0) - #endif /* CONFIG_SND_VERBOSE_PROCFS */ - - /* -diff -urNp linux-2.6.28.8/sound/core/seq/seq_lock.h linux-2.6.28.8/sound/core/seq/seq_lock.h ---- linux-2.6.28.8/sound/core/seq/seq_lock.h 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/sound/core/seq/seq_lock.h 2009-02-21 09:37:50.000000000 -0500 -@@ -23,10 +23,10 @@ void snd_use_lock_sync_helper(snd_use_lo - #else /* SMP || CONFIG_SND_DEBUG */ - - typedef spinlock_t snd_use_lock_t; /* dummy */ --#define snd_use_lock_init(lockp) /**/ --#define snd_use_lock_use(lockp) /**/ --#define snd_use_lock_free(lockp) /**/ --#define snd_use_lock_sync(lockp) /**/ -+#define snd_use_lock_init(lockp) do {} while (0) -+#define snd_use_lock_use(lockp) do {} while (0) -+#define snd_use_lock_free(lockp) do {} while (0) -+#define snd_use_lock_sync(lockp) do {} while (0) - - #endif /* SMP || CONFIG_SND_DEBUG */ - -diff -urNp linux-2.6.28.8/sound/pci/ac97/ac97_patch.c linux-2.6.28.8/sound/pci/ac97/ac97_patch.c ---- linux-2.6.28.8/sound/pci/ac97/ac97_patch.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/sound/pci/ac97/ac97_patch.c 2009-02-21 09:37:50.000000000 -0500 -@@ -1498,7 +1498,7 @@ static const struct snd_ac97_res_table a - { AC97_VIDEO, 0x9f1f }, - { AC97_AUX, 0x9f1f }, - { AC97_PCM, 0x9f1f }, -- { } /* terminator */ -+ { 0, 0 } /* terminator */ - }; - - static int patch_ad1819(struct snd_ac97 * ac97) -@@ -3870,7 +3870,7 @@ static struct snd_ac97_res_table lm4550_ - { AC97_AUX, 0x1f1f }, - { AC97_PCM, 0x1f1f }, - { AC97_REC_GAIN, 0x0f0f }, -- { } /* terminator */ -+ { 0, 0 } /* terminator */ - }; - - static int patch_lm4550(struct snd_ac97 *ac97) -diff -urNp linux-2.6.28.8/sound/pci/ens1370.c linux-2.6.28.8/sound/pci/ens1370.c ---- linux-2.6.28.8/sound/pci/ens1370.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/sound/pci/ens1370.c 2009-02-21 09:37:50.000000000 -0500 -@@ -452,7 +452,7 @@ static struct pci_device_id snd_audiopci - { 0x1274, 0x5880, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0, }, /* ES1373 - CT5880 */ - { 0x1102, 0x8938, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0, }, /* Ectiva EV1938 */ - #endif -- { 0, } -+ { 0, 0, 0, 0, 0, 0, 0 } - }; - - MODULE_DEVICE_TABLE(pci, snd_audiopci_ids); -diff -urNp linux-2.6.28.8/sound/pci/intel8x0.c linux-2.6.28.8/sound/pci/intel8x0.c ---- linux-2.6.28.8/sound/pci/intel8x0.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/sound/pci/intel8x0.c 2009-02-21 09:37:50.000000000 -0500 -@@ -443,7 +443,7 @@ static struct pci_device_id snd_intel8x0 - { 0x1022, 0x746d, PCI_ANY_ID, PCI_ANY_ID, 0, 0, DEVICE_INTEL }, /* AMD8111 */ - { 0x1022, 0x7445, PCI_ANY_ID, PCI_ANY_ID, 0, 0, DEVICE_INTEL }, /* AMD768 */ - { 0x10b9, 0x5455, PCI_ANY_ID, PCI_ANY_ID, 0, 0, DEVICE_ALI }, /* Ali5455 */ -- { 0, } -+ { 0, 0, 0, 0, 0, 0, 0 } - }; - - MODULE_DEVICE_TABLE(pci, snd_intel8x0_ids); -@@ -2088,7 +2088,7 @@ static struct ac97_quirk ac97_quirks[] _ - .type = AC97_TUNE_HP_ONLY - }, - #endif -- { } /* terminator */ -+ { 0, 0, 0, 0, NULL, 0 } /* terminator */ - }; - - static int __devinit snd_intel8x0_mixer(struct intel8x0 *chip, int ac97_clock, -diff -urNp linux-2.6.28.8/sound/pci/intel8x0m.c linux-2.6.28.8/sound/pci/intel8x0m.c ---- linux-2.6.28.8/sound/pci/intel8x0m.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/sound/pci/intel8x0m.c 2009-02-21 09:37:50.000000000 -0500 -@@ -239,7 +239,7 @@ static struct pci_device_id snd_intel8x0 - { 0x1022, 0x746d, PCI_ANY_ID, PCI_ANY_ID, 0, 0, DEVICE_INTEL }, /* AMD8111 */ - { 0x10b9, 0x5455, PCI_ANY_ID, PCI_ANY_ID, 0, 0, DEVICE_ALI }, /* Ali5455 */ - #endif -- { 0, } -+ { 0, 0, 0, 0, 0, 0, 0 } - }; - - MODULE_DEVICE_TABLE(pci, snd_intel8x0m_ids); -@@ -1258,7 +1258,7 @@ static struct shortname_table { - { 0x5455, "ALi M5455" }, - { 0x746d, "AMD AMD8111" }, - #endif -- { 0 }, -+ { 0, NULL }, - }; - - static int __devinit snd_intel8x0m_probe(struct pci_dev *pci, -diff -urNp linux-2.6.28.8/virt/kvm/kvm_main.c linux-2.6.28.8/virt/kvm/kvm_main.c ---- linux-2.6.28.8/virt/kvm/kvm_main.c 2009-02-06 16:47:45.000000000 -0500 -+++ linux-2.6.28.8/virt/kvm/kvm_main.c 2009-02-21 09:37:50.000000000 -0500 -@@ -1765,6 +1765,9 @@ static struct miscdevice kvm_dev = { - KVM_MINOR, - "kvm", - &kvm_chardev_ops, -+ {NULL, NULL}, -+ NULL, -+ NULL - }; - - static void hardware_enable(void *junk) -@@ -1996,7 +1999,7 @@ static void kvm_sched_out(struct preempt - kvm_arch_vcpu_put(vcpu); - } - --int kvm_init(void *opaque, unsigned int vcpu_size, -+int kvm_init(const void *opaque, unsigned int vcpu_size, - struct module *module) - { - int r; diff --git a/core/linux-grsec-sources/linux-2.6.26.8-ipgre-strict-binding.diff b/core/linux-grsec-sources/linux-2.6.26.8-ipgre-strict-binding.diff deleted file mode 100644 index 16f421c58..000000000 --- a/core/linux-grsec-sources/linux-2.6.26.8-ipgre-strict-binding.diff +++ /dev/null @@ -1,124 +0,0 @@ -Index: linux-2.6.26.8/net/ipv4/ip_gre.c -=================================================================== ---- linux-2.6.26.8.orig/net/ipv4/ip_gre.c 2009-01-08 12:54:44.000000000 +0200 -+++ linux-2.6.26.8/net/ipv4/ip_gre.c 2009-01-08 15:30:38.000000000 +0200 -@@ -162,41 +162,65 @@ - - /* Given src, dst and key, find appropriate for input tunnel. */ - --static struct ip_tunnel * ipgre_tunnel_lookup(struct net *net, -+static struct ip_tunnel * ipgre_tunnel_lookup(struct net_device *dev, - __be32 remote, __be32 local, __be32 key) - { -+ struct net *net = dev_net(dev); -+ int link = dev->ifindex; - unsigned h0 = HASH(remote); - unsigned h1 = HASH(key); -- struct ip_tunnel *t; -+ struct ip_tunnel *t, *tlinkless = NULL; - struct ipgre_net *ign = net_generic(net, ipgre_net_id); - - for (t = ign->tunnels_r_l[h0^h1]; t; t = t->next) { -- if (local == t->parms.iph.saddr && remote == t->parms.iph.daddr) { -- if (t->parms.i_key == key && (t->dev->flags&IFF_UP)) -+ if (local == t->parms.iph.saddr && -+ remote == t->parms.iph.daddr && -+ key == t->parms.i_key && -+ (t->dev->flags & IFF_UP)) { -+ if (link == t->parms.link) - return t; -+ if (tlinkless == NULL) -+ tlinkless = t; - } - } - for (t = ign->tunnels_r[h0^h1]; t; t = t->next) { -- if (remote == t->parms.iph.daddr) { -- if (t->parms.i_key == key && (t->dev->flags&IFF_UP)) -+ if (remote == t->parms.iph.daddr && -+ key == t->parms.i_key && -+ (t->dev->flags&IFF_UP)) { -+ if (link == t->parms.link) - return t; -+ if (tlinkless == NULL) -+ tlinkless = t; - } - } - for (t = ign->tunnels_l[h1]; t; t = t->next) { -- if (local == t->parms.iph.saddr || -- (local == t->parms.iph.daddr && -- ipv4_is_multicast(local))) { -- if (t->parms.i_key == key && (t->dev->flags&IFF_UP)) -+ if ((local == t->parms.iph.saddr || -+ (local == t->parms.iph.daddr && ipv4_is_multicast(local))) && -+ key == t->parms.i_key && -+ (t->dev->flags & IFF_UP)) { -+ if (link == t->parms.link) - return t; -+ if (tlinkless == NULL) -+ tlinkless = t; - } - } -+ - for (t = ign->tunnels_wc[h1]; t; t = t->next) { -- if (t->parms.i_key == key && (t->dev->flags&IFF_UP)) -- return t; -+ if (t->parms.i_key == key && -+ (t->dev->flags & IFF_UP)) { -+ if (link == t->parms.link) -+ return t; -+ if (tlinkless == NULL) -+ tlinkless = t; -+ } - } - -- if (ign->fb_tunnel_dev->flags&IFF_UP) -+ if (tlinkless != NULL) -+ return tlinkless; -+ -+ if (ign->fb_tunnel_dev->flags & IFF_UP) - return netdev_priv(ign->fb_tunnel_dev); -+ - return NULL; - } - -@@ -255,16 +279,18 @@ - __be32 remote = parms->iph.daddr; - __be32 local = parms->iph.saddr; - __be32 key = parms->i_key; -+ int link = parms->link; - struct ip_tunnel *t, **tp, *nt; - struct net_device *dev; - char name[IFNAMSIZ]; - struct ipgre_net *ign = net_generic(net, ipgre_net_id); - - for (tp = __ipgre_bucket(ign, parms); (t = *tp) != NULL; tp = &t->next) { -- if (local == t->parms.iph.saddr && remote == t->parms.iph.daddr) { -- if (key == t->parms.i_key) -- return t; -- } -+ if (local == t->parms.iph.saddr && -+ remote == t->parms.iph.daddr && -+ key == t->parms.i_key && -+ link == t->parms.link) -+ return t; - } - if (!create) - return NULL; -@@ -379,7 +405,7 @@ - } - - read_lock(&ipgre_lock); -- t = ipgre_tunnel_lookup(dev_net(skb->dev), iph->daddr, iph->saddr, -+ t = ipgre_tunnel_lookup(skb->dev, iph->daddr, iph->saddr, - (flags&GRE_KEY) ? - *(((__be32*)p) + (grehlen>>2) - 1) : 0); - if (t == NULL || t->parms.iph.daddr == 0 || -@@ -471,7 +497,7 @@ - } - - read_lock(&ipgre_lock); -- if ((tunnel = ipgre_tunnel_lookup(dev_net(skb->dev), -+ if ((tunnel = ipgre_tunnel_lookup(skb->dev, - iph->saddr, iph->daddr, key)) != NULL) { - secpath_reset(skb); - |