main/linux-grsec: upgrade to 3.3.6 kernel

(cherry picked from commit 7cbfc3e586006f3ed1a141fbcab7dfe6755be32d)

2 files changed, 621 insertions, 160 deletions

diff --git a/main/linux-grsec/APKBUILD b/main/linux-grsec/APKBUILD
index 1a4e1e713..3a85b1ba7 100644
--- a/main/linux-grsec/APKBUILD
+++ b/main/linux-grsec/APKBUILD
@@ -2,7 +2,7 @@
 
 _flavor=grsec
 pkgname=linux-${_flavor}
-pkgver=3.3.5
+pkgver=3.3.6
 _kernver=3.3
 pkgrel=0
 pkgdesc="Linux kernel with grsecurity"
@@ -14,7 +14,7 @@ _config=${config:-kernelconfig.${CARCH}}
 install=
 source="http://ftp.kernel.org/pub/linux/kernel/v3.x/linux-$_kernver.tar.xz
 	http://ftp.kernel.org/pub/linux/kernel/v3.x/patch-$pkgver.xz
-	grsecurity-2.9-3.3.5-201205071839.patch
+	grsecurity-2.9-3.3.6-201205131658.patch
 	
 	0004-arp-flush-arp-cache-on-device-change.patch
 
@@ -138,8 +138,8 @@ dev() {
 }
 
 md5sums="7133f5a2086a7d7ef97abac610c094f5  linux-3.3.tar.xz
-d346edca5d3de7052f49996b01cef401  patch-3.3.5.xz
-1c2f2313347889b313f8af1212c708bf  grsecurity-2.9-3.3.5-201205071839.patch
+a7f67e9c491403906e4bb475de194631  patch-3.3.6.xz
+47553b5150ed81a8ee1a4d9fec2688e0  grsecurity-2.9-3.3.6-201205131658.patch
 776adeeb5272093574f8836c5037dd7d  0004-arp-flush-arp-cache-on-device-change.patch
 5d2818cb5329aec600ee8ffc3896a728  kernelconfig.x86
 39552b468a33a04678113c12ec6c1a91  kernelconfig.x86_64"
diff --git a/main/linux-grsec/grsecurity-2.9-3.3.5-201205071839.patch b/main/linux-grsec/grsecurity-2.9-3.3.6-201205131658.patch
index 222eccde7..0bad506a6 100644
--- a/main/linux-grsec/grsecurity-2.9-3.3.5-201205071839.patch
+++ b/main/linux-grsec/grsecurity-2.9-3.3.6-201205131658.patch
@@ -195,7 +195,7 @@ index d99fd9c..8689fef 100644
  
  	pcd.		[PARIDE]
 diff --git a/Makefile b/Makefile
-index 64615e9..64d72ce 100644
+index 9cd6941..92e68ff 100644
 --- a/Makefile
 +++ b/Makefile
 @@ -245,8 +245,9 @@ CONFIG_SHELL := $(shell if [ -x "$$BASH" ]; then echo $$BASH; \
@@ -1457,6 +1457,36 @@ index e4c96cc..1145653 100644
  #endif /* __ASSEMBLY__ */
  
  #define arch_align_stack(x) (x)
+diff --git a/arch/arm/include/asm/thread_info.h b/arch/arm/include/asm/thread_info.h
+index d4c24d4..4ac53e8 100644
+--- a/arch/arm/include/asm/thread_info.h
++++ b/arch/arm/include/asm/thread_info.h
+@@ -141,6 +141,12 @@ extern void vfp_flush_hwstate(struct thread_info *);
+ #define TIF_NOTIFY_RESUME	2	/* callback before returning to user */
+ #define TIF_SYSCALL_TRACE	8
+ #define TIF_SYSCALL_AUDIT	9
++
++/* within 8 bits of TIF_SYSCALL_TRACE
++   to meet flexible second operand requirements
++*/
++#define TIF_GRSEC_SETXID	10
++
+ #define TIF_POLLING_NRFLAG	16
+ #define TIF_USING_IWMMXT	17
+ #define TIF_MEMDIE		18	/* is terminating due to OOM killer */
+@@ -156,9 +162,11 @@ extern void vfp_flush_hwstate(struct thread_info *);
+ #define _TIF_USING_IWMMXT	(1 << TIF_USING_IWMMXT)
+ #define _TIF_RESTORE_SIGMASK	(1 << TIF_RESTORE_SIGMASK)
+ #define _TIF_SECCOMP		(1 << TIF_SECCOMP)
++#define _TIF_GRSEC_SETXID	(1 << TIF_GRSEC_SETXID)
+ 
+ /* Checks for any syscall work in entry-common.S */
+-#define _TIF_SYSCALL_WORK (_TIF_SYSCALL_TRACE | _TIF_SYSCALL_AUDIT)
++#define _TIF_SYSCALL_WORK (_TIF_SYSCALL_TRACE | _TIF_SYSCALL_AUDIT | \
++			   _TIF_GRSEC_SETXID)
+ 
+ /*
+  * Change these and you break ASM code in entry-common.S
 diff --git a/arch/arm/include/asm/uaccess.h b/arch/arm/include/asm/uaccess.h
 index 2958976..12ccac4 100644
 --- a/arch/arm/include/asm/uaccess.h
@@ -1568,6 +1598,30 @@ index 971d65c..cc936fb 100644
  #ifdef CONFIG_MMU
  /*
   * The vectors page is always readable from user space for the
+diff --git a/arch/arm/kernel/ptrace.c b/arch/arm/kernel/ptrace.c
+index f5ce8ab..4b73893 100644
+--- a/arch/arm/kernel/ptrace.c
++++ b/arch/arm/kernel/ptrace.c
+@@ -905,10 +905,19 @@ long arch_ptrace(struct task_struct *child, long request,
+ 	return ret;
+ }
+ 
++#ifdef CONFIG_GRKERNSEC_SETXID
++extern void gr_delayed_cred_worker(void);
++#endif
++
+ asmlinkage int syscall_trace(int why, struct pt_regs *regs, int scno)
+ {
+ 	unsigned long ip;
+ 
++#ifdef CONFIG_GRKERNSEC_SETXID
++	if (unlikely(test_and_clear_thread_flag(TIF_GRSEC_SETXID)))
++		gr_delayed_cred_worker();
++#endif
++
+ 	if (why)
+ 		audit_syscall_exit(regs);
+ 	else
 diff --git a/arch/arm/kernel/setup.c b/arch/arm/kernel/setup.c
 index a255c39..4a19b25 100644
 --- a/arch/arm/kernel/setup.c
@@ -2791,6 +2845,40 @@ index 6018c80..7c37203 100644
 +#define arch_align_stack(x) ((x) & ~0xfUL)
  
  #endif /* _ASM_SYSTEM_H */
+diff --git a/arch/mips/include/asm/thread_info.h b/arch/mips/include/asm/thread_info.h
+index 0d85d8e..ec71487 100644
+--- a/arch/mips/include/asm/thread_info.h
++++ b/arch/mips/include/asm/thread_info.h
+@@ -123,6 +123,8 @@ register struct thread_info *__current_thread_info __asm__("$28");
+ #define TIF_32BIT_ADDR		23	/* 32-bit address space (o32/n32) */
+ #define TIF_FPUBOUND		24	/* thread bound to FPU-full CPU set */
+ #define TIF_LOAD_WATCH		25	/* If set, load watch registers */
++/* li takes a 32bit immediate */
++#define TIF_GRSEC_SETXID	29	/* update credentials on syscall entry/exit */
+ #define TIF_SYSCALL_TRACE	31	/* syscall trace active */
+ 
+ #ifdef CONFIG_MIPS32_O32
+@@ -146,15 +148,18 @@ register struct thread_info *__current_thread_info __asm__("$28");
+ #define _TIF_32BIT_ADDR		(1<<TIF_32BIT_ADDR)
+ #define _TIF_FPUBOUND		(1<<TIF_FPUBOUND)
+ #define _TIF_LOAD_WATCH		(1<<TIF_LOAD_WATCH)
++#define _TIF_GRSEC_SETXID	(1<<TIF_GRSEC_SETXID)
++
++#define _TIF_SYSCALL_WORK	(_TIF_SYSCALL_TRACE | _TIF_SYSCALL_AUDIT | _TIF_GRSEC_SETXID)
+ 
+ /* work to do in syscall_trace_leave() */
+-#define _TIF_WORK_SYSCALL_EXIT	(_TIF_SYSCALL_TRACE | _TIF_SYSCALL_AUDIT)
++#define _TIF_WORK_SYSCALL_EXIT	(_TIF_SYSCALL_TRACE | _TIF_SYSCALL_AUDIT | _TIF_GRSEC_SETXID)
+ 
+ /* work to do on interrupt/exception return */
+ #define _TIF_WORK_MASK		(0x0000ffef &				\
+ 					~(_TIF_SECCOMP | _TIF_SYSCALL_AUDIT))
+ /* work to do on any return to u-space */
+-#define _TIF_ALLWORK_MASK	(0x8000ffff & ~_TIF_SECCOMP)
++#define _TIF_ALLWORK_MASK	((0x8000ffff & ~_TIF_SECCOMP) | _TIF_GRSEC_SETXID)
+ 
+ #endif /* __KERNEL__ */
+ 
 diff --git a/arch/mips/kernel/binfmt_elfn32.c b/arch/mips/kernel/binfmt_elfn32.c
 index 9fdd8bc..4bd7f1a 100644
 --- a/arch/mips/kernel/binfmt_elfn32.c
@@ -2847,6 +2935,85 @@ index 7955409..ceaea7c 100644
 -
 -	return sp & ALMASK;
 -}
+diff --git a/arch/mips/kernel/ptrace.c b/arch/mips/kernel/ptrace.c
+index 7786b60..3e38c72 100644
+--- a/arch/mips/kernel/ptrace.c
++++ b/arch/mips/kernel/ptrace.c
+@@ -529,6 +529,10 @@ static inline int audit_arch(void)
+ 	return arch;
+ }
+ 
++#ifdef CONFIG_GRKERNSEC_SETXID
++extern void gr_delayed_cred_worker(void);
++#endif
++
+ /*
+  * Notification of system call entry/exit
+  * - triggered by current->work.syscall_trace
+@@ -538,6 +542,11 @@ asmlinkage void syscall_trace_enter(struct pt_regs *regs)
+ 	/* do the secure computing check first */
+ 	secure_computing(regs->regs[2]);
+ 
++#ifdef CONFIG_GRKERNSEC_SETXID
++	if (unlikely(test_and_clear_thread_flag(TIF_GRSEC_SETXID)))
++		gr_delayed_cred_worker();
++#endif
++
+ 	if (!(current->ptrace & PT_PTRACED))
+ 		goto out;
+ 
+diff --git a/arch/mips/kernel/scall32-o32.S b/arch/mips/kernel/scall32-o32.S
+index a632bc1..0b77c7c 100644
+--- a/arch/mips/kernel/scall32-o32.S
++++ b/arch/mips/kernel/scall32-o32.S
+@@ -52,7 +52,7 @@ NESTED(handle_sys, PT_SIZE, sp)
+ 
+ stack_done:
+ 	lw	t0, TI_FLAGS($28)	# syscall tracing enabled?
+-	li	t1, _TIF_SYSCALL_TRACE | _TIF_SYSCALL_AUDIT
++	li	t1, _TIF_SYSCALL_WORK
+ 	and	t0, t1
+ 	bnez	t0, syscall_trace_entry	# -> yes
+ 
+diff --git a/arch/mips/kernel/scall64-64.S b/arch/mips/kernel/scall64-64.S
+index 3b5a5e9..e1ee86d 100644
+--- a/arch/mips/kernel/scall64-64.S
++++ b/arch/mips/kernel/scall64-64.S
+@@ -54,7 +54,7 @@ NESTED(handle_sys64, PT_SIZE, sp)
+ 
+ 	sd	a3, PT_R26(sp)		# save a3 for syscall restarting
+ 
+-	li	t1, _TIF_SYSCALL_TRACE | _TIF_SYSCALL_AUDIT
++	li	t1, _TIF_SYSCALL_WORK
+ 	LONG_L	t0, TI_FLAGS($28)	# syscall tracing enabled?
+ 	and	t0, t1, t0
+ 	bnez	t0, syscall_trace_entry
+diff --git a/arch/mips/kernel/scall64-n32.S b/arch/mips/kernel/scall64-n32.S
+index 6be6f70..1859577 100644
+--- a/arch/mips/kernel/scall64-n32.S
++++ b/arch/mips/kernel/scall64-n32.S
+@@ -53,7 +53,7 @@ NESTED(handle_sysn32, PT_SIZE, sp)
+ 
+ 	sd	a3, PT_R26(sp)		# save a3 for syscall restarting
+ 
+-	li	t1, _TIF_SYSCALL_TRACE | _TIF_SYSCALL_AUDIT
++	li	t1, _TIF_SYSCALL_WORK
+ 	LONG_L	t0, TI_FLAGS($28)	# syscall tracing enabled?
+ 	and	t0, t1, t0
+ 	bnez	t0, n32_syscall_trace_entry
+diff --git a/arch/mips/kernel/scall64-o32.S b/arch/mips/kernel/scall64-o32.S
+index 5422855..74e63a3 100644
+--- a/arch/mips/kernel/scall64-o32.S
++++ b/arch/mips/kernel/scall64-o32.S
+@@ -81,7 +81,7 @@ NESTED(handle_sys, PT_SIZE, sp)
+ 	PTR	4b, bad_stack
+ 	.previous
+ 
+-	li	t1, _TIF_SYSCALL_TRACE | _TIF_SYSCALL_AUDIT
++	li	t1, _TIF_SYSCALL_WORK
+ 	LONG_L	t0, TI_FLAGS($28)	# syscall tracing enabled?
+ 	and	t0, t1, t0
+ 	bnez	t0, trace_a_syscall
 diff --git a/arch/mips/mm/fault.c b/arch/mips/mm/fault.c
 index 69ebd58..e4bff83 100644
 --- a/arch/mips/mm/fault.c
@@ -3689,6 +3856,40 @@ index c377457..3c69fbc 100644
  
  /* Used in very early kernel initialization. */
  extern unsigned long reloc_offset(void);
+diff --git a/arch/powerpc/include/asm/thread_info.h b/arch/powerpc/include/asm/thread_info.h
+index 96471494..60ed5a2 100644
+--- a/arch/powerpc/include/asm/thread_info.h
++++ b/arch/powerpc/include/asm/thread_info.h
+@@ -104,13 +104,15 @@ static inline struct thread_info *current_thread_info(void)
+ #define TIF_PERFMON_CTXSW	6	/* perfmon needs ctxsw calls */
+ #define TIF_SYSCALL_AUDIT	7	/* syscall auditing active */
+ #define TIF_SINGLESTEP		8	/* singlestepping active */
+-#define TIF_MEMDIE		9	/* is terminating due to OOM killer */
+ #define TIF_SECCOMP		10	/* secure computing */
+ #define TIF_RESTOREALL		11	/* Restore all regs (implies NOERROR) */
+ #define TIF_NOERROR		12	/* Force successful syscall return */
+ #define TIF_NOTIFY_RESUME	13	/* callback before returning to user */
+ #define TIF_SYSCALL_TRACEPOINT	15	/* syscall tracepoint instrumentation */
+ #define TIF_RUNLATCH		16	/* Is the runlatch enabled? */
++#define TIF_MEMDIE		17	/* is terminating due to OOM killer */
++/* mask must be expressable within 16 bits to satisfy 'andi' instruction reqs */
++#define TIF_GRSEC_SETXID	9	/* update credentials on syscall entry/exit */
+ 
+ /* as above, but as bit values */
+ #define _TIF_SYSCALL_TRACE	(1<<TIF_SYSCALL_TRACE)
+@@ -128,8 +130,11 @@ static inline struct thread_info *current_thread_info(void)
+ #define _TIF_NOTIFY_RESUME	(1<<TIF_NOTIFY_RESUME)
+ #define _TIF_SYSCALL_TRACEPOINT	(1<<TIF_SYSCALL_TRACEPOINT)
+ #define _TIF_RUNLATCH		(1<<TIF_RUNLATCH)
++#define _TIF_GRSEC_SETXID	(1<<TIF_GRSEC_SETXID)
++
+ #define _TIF_SYSCALL_T_OR_A	(_TIF_SYSCALL_TRACE | _TIF_SYSCALL_AUDIT | \
+-				 _TIF_SECCOMP | _TIF_SYSCALL_TRACEPOINT)
++				 _TIF_SECCOMP | _TIF_SYSCALL_TRACEPOINT \
++				 _TIF_GRSEC_SETXID)
+ 
+ #define _TIF_USER_WORK_MASK	(_TIF_SIGPENDING | _TIF_NEED_RESCHED | \
+ 				 _TIF_NOTIFY_RESUME)
 diff --git a/arch/powerpc/include/asm/uaccess.h b/arch/powerpc/include/asm/uaccess.h
 index bd0fb84..a42a14b 100644
 --- a/arch/powerpc/include/asm/uaccess.h
@@ -4065,6 +4266,45 @@ index d817ab0..b23b18e 100644
 -
 -	return ret;
 -}
+diff --git a/arch/powerpc/kernel/ptrace.c b/arch/powerpc/kernel/ptrace.c
+index 5b43325..94a5bb4 100644
+--- a/arch/powerpc/kernel/ptrace.c
++++ b/arch/powerpc/kernel/ptrace.c
+@@ -1702,6 +1702,10 @@ long arch_ptrace(struct task_struct *child, long request,
+ 	return ret;
+ }
+ 
++#ifdef CONFIG_GRKERNSEC_SETXID
++extern void gr_delayed_cred_worker(void);
++#endif
++
+ /*
+  * We must return the syscall number to actually look up in the table.
+  * This can be -1L to skip running any syscall at all.
+@@ -1712,6 +1716,11 @@ long do_syscall_trace_enter(struct pt_regs *regs)
+ 
+ 	secure_computing(regs->gpr[0]);
+ 
++#ifdef CONFIG_GRKERNSEC_SETXID
++	if (unlikely(test_and_clear_thread_flag(TIF_GRSEC_SETXID)))
++		gr_delayed_cred_worker();
++#endif
++
+ 	if (test_thread_flag(TIF_SYSCALL_TRACE) &&
+ 	    tracehook_report_syscall_entry(regs))
+ 		/*
+@@ -1746,6 +1755,11 @@ void do_syscall_trace_leave(struct pt_regs *regs)
+ {
+ 	int step;
+ 
++#ifdef CONFIG_GRKERNSEC_SETXID
++	if (unlikely(test_and_clear_thread_flag(TIF_GRSEC_SETXID)))
++		gr_delayed_cred_worker();
++#endif
++
+ 	audit_syscall_exit(regs);
+ 
+ 	if (unlikely(test_thread_flag(TIF_SYSCALL_TRACEPOINT)))
 diff --git a/arch/powerpc/kernel/signal_32.c b/arch/powerpc/kernel/signal_32.c
 index 836a5a1..27289a3 100644
 --- a/arch/powerpc/kernel/signal_32.c
@@ -5253,7 +5493,7 @@ index c2a1080..21ed218 100644
  
  /*
 diff --git a/arch/sparc/include/asm/thread_info_64.h b/arch/sparc/include/asm/thread_info_64.h
-index 01d057f..0a02f7e 100644
+index 01d057f..13a7d2f 100644
 --- a/arch/sparc/include/asm/thread_info_64.h
 +++ b/arch/sparc/include/asm/thread_info_64.h
 @@ -63,6 +63,8 @@ struct thread_info {
@@ -5265,6 +5505,38 @@ index 01d057f..0a02f7e 100644
  	unsigned long		fpregs[0] __attribute__ ((aligned(64)));
  };
  
+@@ -214,10 +216,11 @@ register struct thread_info *current_thread_info_reg asm("g6");
+ #define TIF_UNALIGNED		5	/* allowed to do unaligned accesses */
+ /* flag bit 6 is available */
+ #define TIF_32BIT		7	/* 32-bit binary */
+-/* flag bit 8 is available */
++#define TIF_GRSEC_SETXID	8	/* update credentials on syscall entry/exit */
+ #define TIF_SECCOMP		9	/* secure computing */
+ #define TIF_SYSCALL_AUDIT	10	/* syscall auditing active */
+ #define TIF_SYSCALL_TRACEPOINT	11	/* syscall tracepoint instrumentation */
++
+ /* NOTE: Thread flags >= 12 should be ones we have no interest
+  *       in using in assembly, else we can't use the mask as
+  *       an immediate value in instructions such as andcc.
+@@ -236,12 +239,18 @@ register struct thread_info *current_thread_info_reg asm("g6");
+ #define _TIF_SYSCALL_AUDIT	(1<<TIF_SYSCALL_AUDIT)
+ #define _TIF_SYSCALL_TRACEPOINT	(1<<TIF_SYSCALL_TRACEPOINT)
+ #define _TIF_POLLING_NRFLAG	(1<<TIF_POLLING_NRFLAG)
++#define _TIF_GRSEC_SETXID	(1<<TIF_GRSEC_SETXID)
+ 
+ #define _TIF_USER_WORK_MASK	((0xff << TI_FLAG_WSAVED_SHIFT) | \
+ 				 _TIF_DO_NOTIFY_RESUME_MASK | \
+ 				 _TIF_NEED_RESCHED)
+ #define _TIF_DO_NOTIFY_RESUME_MASK	(_TIF_NOTIFY_RESUME | _TIF_SIGPENDING)
+ 
++#define _TIF_WORK_SYSCALL		\
++	(_TIF_SYSCALL_TRACE | _TIF_SECCOMP | _TIF_SYSCALL_AUDIT | \
++	 _TIF_SYSCALL_TRACEPOINT | _TIF_GRSEC_SETXID)
++
++
+ /*
+  * Thread-synchronous status.
+  *
 diff --git a/arch/sparc/include/asm/uaccess.h b/arch/sparc/include/asm/uaccess.h
 index e88fbe5..96b0ce5 100644
 --- a/arch/sparc/include/asm/uaccess.h
@@ -5475,6 +5747,45 @@ index 39d8b05..d1a7d90 100644
  			       (void *) gp->tpc,
  			       (void *) gp->o7,
  			       (void *) gp->i7,
+diff --git a/arch/sparc/kernel/ptrace_64.c b/arch/sparc/kernel/ptrace_64.c
+index 9388844..0075fd2 100644
+--- a/arch/sparc/kernel/ptrace_64.c
++++ b/arch/sparc/kernel/ptrace_64.c
+@@ -1058,6 +1058,10 @@ long arch_ptrace(struct task_struct *child, long request,
+ 	return ret;
+ }
+ 
++#ifdef CONFIG_GRKERNSEC_SETXID
++extern void gr_delayed_cred_worker(void);
++#endif
++
+ asmlinkage int syscall_trace_enter(struct pt_regs *regs)
+ {
+ 	int ret = 0;
+@@ -1065,6 +1069,11 @@ asmlinkage int syscall_trace_enter(struct pt_regs *regs)
+ 	/* do the secure computing check first */
+ 	secure_computing(regs->u_regs[UREG_G1]);
+ 
++#ifdef CONFIG_GRKERNSEC_SETXID
++	if (unlikely(test_and_clear_thread_flag(TIF_GRSEC_SETXID)))
++		gr_delayed_cred_worker();
++#endif
++
+ 	if (test_thread_flag(TIF_SYSCALL_TRACE))
+ 		ret = tracehook_report_syscall_entry(regs);
+ 
+@@ -1085,6 +1094,11 @@ asmlinkage int syscall_trace_enter(struct pt_regs *regs)
+ 
+ asmlinkage void syscall_trace_leave(struct pt_regs *regs)
+ {
++#ifdef CONFIG_GRKERNSEC_SETXID
++	if (unlikely(test_and_clear_thread_flag(TIF_GRSEC_SETXID)))
++		gr_delayed_cred_worker();
++#endif
++
+ 	audit_syscall_exit(regs);
+ 
+ 	if (unlikely(test_thread_flag(TIF_SYSCALL_TRACEPOINT)))
 diff --git a/arch/sparc/kernel/sys_sparc_32.c b/arch/sparc/kernel/sys_sparc_32.c
 index 42b282f..28ce9f2 100644
 --- a/arch/sparc/kernel/sys_sparc_32.c
@@ -5648,6 +5959,55 @@ index 232df99..cee1f9c 100644
  		mm->get_unmapped_area = arch_get_unmapped_area_topdown;
  		mm->unmap_area = arch_unmap_area_topdown;
  	}
+diff --git a/arch/sparc/kernel/syscalls.S b/arch/sparc/kernel/syscalls.S
+index 1d7e274..b39c527 100644
+--- a/arch/sparc/kernel/syscalls.S
++++ b/arch/sparc/kernel/syscalls.S
+@@ -62,7 +62,7 @@ sys32_rt_sigreturn:
+ #endif
+ 	.align	32
+ 1:	ldx	[%g6 + TI_FLAGS], %l5
+-	andcc	%l5, (_TIF_SYSCALL_TRACE|_TIF_SECCOMP|_TIF_SYSCALL_AUDIT|_TIF_SYSCALL_TRACEPOINT), %g0
++	andcc	%l5, _TIF_WORK_SYSCALL, %g0
+ 	be,pt	%icc, rtrap
+ 	 nop
+ 	call	syscall_trace_leave
+@@ -179,7 +179,7 @@ linux_sparc_syscall32:
+ 
+ 	srl	%i5, 0, %o5				! IEU1
+ 	srl	%i2, 0, %o2				! IEU0	Group
+-	andcc	%l0, (_TIF_SYSCALL_TRACE|_TIF_SECCOMP|_TIF_SYSCALL_AUDIT|_TIF_SYSCALL_TRACEPOINT), %g0
++	andcc	%l0, _TIF_WORK_SYSCALL, %g0
+ 	bne,pn	%icc, linux_syscall_trace32		! CTI
+ 	 mov	%i0, %l5				! IEU1
+ 	call	%l7					! CTI	Group brk forced
+@@ -202,7 +202,7 @@ linux_sparc_syscall:
+ 
+ 	mov	%i3, %o3				! IEU1
+ 	mov	%i4, %o4				! IEU0	Group
+-	andcc	%l0, (_TIF_SYSCALL_TRACE|_TIF_SECCOMP|_TIF_SYSCALL_AUDIT|_TIF_SYSCALL_TRACEPOINT), %g0
++	andcc	%l0, _TIF_WORK_SYSCALL, %g0
+ 	bne,pn	%icc, linux_syscall_trace		! CTI	Group
+ 	 mov	%i0, %l5				! IEU0
+ 2:	call	%l7					! CTI	Group brk forced
+@@ -226,7 +226,7 @@ ret_sys_call:
+ 
+ 	cmp	%o0, -ERESTART_RESTARTBLOCK
+ 	bgeu,pn	%xcc, 1f
+-	 andcc	%l0, (_TIF_SYSCALL_TRACE|_TIF_SECCOMP|_TIF_SYSCALL_AUDIT|_TIF_SYSCALL_TRACEPOINT), %l6
++	 andcc	%l0, _TIF_WORK_SYSCALL, %l6
+ 80:
+ 	/* System call success, clear Carry condition code. */
+ 	andn	%g3, %g2, %g3
+@@ -241,7 +241,7 @@ ret_sys_call:
+ 	/* System call failure, set Carry condition code.
+ 	 * Also, get abs(errno) to return to the process.
+ 	 */
+-	andcc	%l0, (_TIF_SYSCALL_TRACE|_TIF_SECCOMP|_TIF_SYSCALL_AUDIT|_TIF_SYSCALL_TRACEPOINT), %l6	
++	andcc	%l0, _TIF_WORK_SYSCALL, %l6	
+ 	sub	%g0, %o0, %o0
+ 	or	%g3, %g2, %g3
+ 	stx	%o0, [%sp + PTREGS_OFF + PT_V9_I0]
 diff --git a/arch/sparc/kernel/traps_32.c b/arch/sparc/kernel/traps_32.c
 index 591f20c..0f1b925 100644
 --- a/arch/sparc/kernel/traps_32.c
@@ -7519,7 +7879,7 @@ index 7116dcb..d9ae1d7 100644
  #endif
  
 diff --git a/arch/x86/boot/compressed/relocs.c b/arch/x86/boot/compressed/relocs.c
-index 89bbf4e..869908e 100644
+index e77f4e4..17e511f 100644
 --- a/arch/x86/boot/compressed/relocs.c
 +++ b/arch/x86/boot/compressed/relocs.c
 @@ -13,8 +13,11 @@
@@ -7624,7 +7984,7 @@ index 89bbf4e..869908e 100644
  			rel->r_info   = elf32_to_cpu(rel->r_info);
  		}
  	}
-@@ -396,14 +440,14 @@ static void read_relocs(FILE *fp)
+@@ -396,13 +440,13 @@ static void read_relocs(FILE *fp)
  
  static void print_absolute_symbols(void)
  {
@@ -7635,13 +7995,12 @@ index 89bbf4e..869908e 100644
  	for (i = 0; i < ehdr.e_shnum; i++) {
  		struct section *sec = &secs[i];
  		char *sym_strtab;
- 		Elf32_Sym *sh_symtab;
 -		int j;
 +		unsigned int j;
  
  		if (sec->shdr.sh_type != SHT_SYMTAB) {
  			continue;
-@@ -431,14 +475,14 @@ static void print_absolute_symbols(void)
+@@ -429,14 +473,14 @@ static void print_absolute_symbols(void)
  
  static void print_absolute_relocs(void)
  {
@@ -7658,7 +8017,7 @@ index 89bbf4e..869908e 100644
  		if (sec->shdr.sh_type != SHT_REL) {
  			continue;
  		}
-@@ -499,13 +543,13 @@ static void print_absolute_relocs(void)
+@@ -497,13 +541,13 @@ static void print_absolute_relocs(void)
  
  static void walk_relocs(void (*visit)(Elf32_Rel *rel, Elf32_Sym *sym))
  {
@@ -7674,7 +8033,7 @@ index 89bbf4e..869908e 100644
  		struct section *sec = &secs[i];
  
  		if (sec->shdr.sh_type != SHT_REL) {
-@@ -530,6 +574,22 @@ static void walk_relocs(void (*visit)(Elf32_Rel *rel, Elf32_Sym *sym))
+@@ -528,6 +572,22 @@ static void walk_relocs(void (*visit)(Elf32_Rel *rel, Elf32_Sym *sym))
  			    !is_rel_reloc(sym_name(sym_strtab, sym))) {
  				continue;
  			}
@@ -7697,7 +8056,7 @@ index 89bbf4e..869908e 100644
  			switch (r_type) {
  			case R_386_NONE:
  			case R_386_PC32:
-@@ -571,7 +631,7 @@ static int cmp_relocs(const void *va, const void *vb)
+@@ -569,7 +629,7 @@ static int cmp_relocs(const void *va, const void *vb)
  
  static void emit_relocs(int as_text)
  {
@@ -7706,7 +8065,7 @@ index 89bbf4e..869908e 100644
  	/* Count how many relocations I have and allocate space for them. */
  	reloc_count = 0;
  	walk_relocs(count_reloc);
-@@ -665,6 +725,7 @@ int main(int argc, char **argv)
+@@ -663,6 +723,7 @@ int main(int argc, char **argv)
  			fname, strerror(errno));
  	}
  	read_ehdr(fp);
@@ -12132,7 +12491,7 @@ index 2d2f01c..f985723 100644
  /*
   * Force strict CPU ordering.
 diff --git a/arch/x86/include/asm/thread_info.h b/arch/x86/include/asm/thread_info.h
-index cfd8144..1b1127d 100644
+index cfd8144..664ac89 100644
 --- a/arch/x86/include/asm/thread_info.h
 +++ b/arch/x86/include/asm/thread_info.h
 @@ -10,6 +10,7 @@
@@ -12182,7 +12541,45 @@ index cfd8144..1b1127d 100644
  #define init_stack		(init_thread_union.stack)
  
  #else /* !__ASSEMBLY__ */
-@@ -169,45 +163,40 @@ struct thread_info {
+@@ -95,6 +89,7 @@ struct thread_info {
+ #define TIF_BLOCKSTEP		25	/* set when we want DEBUGCTLMSR_BTF */
+ #define TIF_LAZY_MMU_UPDATES	27	/* task is updating the mmu lazily */
+ #define TIF_SYSCALL_TRACEPOINT	28	/* syscall tracepoint instrumentation */
++#define TIF_GRSEC_SETXID	29	/* update credentials on syscall entry/exit */
+ 
+ #define _TIF_SYSCALL_TRACE	(1 << TIF_SYSCALL_TRACE)
+ #define _TIF_NOTIFY_RESUME	(1 << TIF_NOTIFY_RESUME)
+@@ -116,16 +111,17 @@ struct thread_info {
+ #define _TIF_BLOCKSTEP		(1 << TIF_BLOCKSTEP)
+ #define _TIF_LAZY_MMU_UPDATES	(1 << TIF_LAZY_MMU_UPDATES)
+ #define _TIF_SYSCALL_TRACEPOINT	(1 << TIF_SYSCALL_TRACEPOINT)
++#define _TIF_GRSEC_SETXID	(1 << TIF_GRSEC_SETXID)
+ 
+ /* work to do in syscall_trace_enter() */
+ #define _TIF_WORK_SYSCALL_ENTRY	\
+ 	(_TIF_SYSCALL_TRACE | _TIF_SYSCALL_EMU | _TIF_SYSCALL_AUDIT |	\
+-	 _TIF_SECCOMP | _TIF_SINGLESTEP | _TIF_SYSCALL_TRACEPOINT)
++	 _TIF_SECCOMP | _TIF_SINGLESTEP | _TIF_SYSCALL_TRACEPOINT | _TIF_GRSEC_SETXID)
+ 
+ /* work to do in syscall_trace_leave() */
+ #define _TIF_WORK_SYSCALL_EXIT	\
+ 	(_TIF_SYSCALL_TRACE | _TIF_SYSCALL_AUDIT | _TIF_SINGLESTEP |	\
+-	 _TIF_SYSCALL_TRACEPOINT)
++	 _TIF_SYSCALL_TRACEPOINT | _TIF_GRSEC_SETXID)
+ 
+ /* work to do on interrupt/exception return */
+ #define _TIF_WORK_MASK							\
+@@ -135,7 +131,8 @@ struct thread_info {
+ 
+ /* work to do on any return to user space */
+ #define _TIF_ALLWORK_MASK						\
+-	((0x0000FFFF & ~_TIF_SECCOMP) | _TIF_SYSCALL_TRACEPOINT)
++	((0x0000FFFF & ~_TIF_SECCOMP) | _TIF_SYSCALL_TRACEPOINT |	\
++	 _TIF_GRSEC_SETXID)
+ 
+ /* Only used for 64 bit */
+ #define _TIF_DO_NOTIFY_MASK						\
+@@ -169,45 +166,40 @@ struct thread_info {
  	ret;								\
  })
  
@@ -12253,7 +12650,7 @@ index cfd8144..1b1127d 100644
  /*
   * macros/functions for gaining access to the thread information structure
   * preempt_count needs to be 1 initially, until the scheduler is functional.
-@@ -215,27 +204,8 @@ static inline struct thread_info *current_thread_info(void)
+@@ -215,27 +207,8 @@ static inline struct thread_info *current_thread_info(void)
  #ifndef __ASSEMBLY__
  DECLARE_PER_CPU(unsigned long, kernel_stack);
  
@@ -12283,7 +12680,7 @@ index cfd8144..1b1127d 100644
  #endif
  
  #endif /* !X86_32 */
-@@ -269,5 +239,16 @@ extern void arch_task_cache_init(void);
+@@ -269,5 +242,16 @@ extern void arch_task_cache_init(void);
  extern void free_thread_info(struct thread_info *ti);
  extern int arch_dup_task_struct(struct task_struct *dst, struct task_struct *src);
  #define arch_task_cache_init arch_task_cache_init
@@ -14606,7 +15003,7 @@ index 9b9f18b..9fcaa04 100644
  #include <asm/processor.h>
  #include <asm/fcntl.h>
 diff --git a/arch/x86/kernel/entry_32.S b/arch/x86/kernel/entry_32.S
-index 7b784f4..76aaad7 100644
+index 7b784f4..db6b628 100644
 --- a/arch/x86/kernel/entry_32.S
 +++ b/arch/x86/kernel/entry_32.S
 @@ -179,13 +179,146 @@
@@ -14799,7 +15196,7 @@ index 7b784f4..76aaad7 100644
 +#ifdef CONFIG_PAX_KERNEXEC
 +	jae resume_userspace
 +
-+	PAX_EXIT_KERNEL
++	pax_exit_kernel
 +	jmp resume_kernel
 +#else
  	jb resume_kernel		# not returning to v8086 or userspace
@@ -18533,7 +18930,7 @@ index cfa5c90..4facd28 100644
  		ip = *(u64 *)(fp+8);
  		if (!in_sched_functions(ip))
 diff --git a/arch/x86/kernel/ptrace.c b/arch/x86/kernel/ptrace.c
-index 5026738..e1b5aa8 100644
+index 5026738..574f70a 100644
 --- a/arch/x86/kernel/ptrace.c
 +++ b/arch/x86/kernel/ptrace.c
 @@ -792,6 +792,10 @@ static int ioperm_active(struct task_struct *target,
@@ -18582,6 +18979,41 @@ index 5026738..e1b5aa8 100644
  }
  
  void user_single_step_siginfo(struct task_struct *tsk,
+@@ -1361,6 +1365,10 @@ void send_sigtrap(struct task_struct *tsk, struct pt_regs *regs,
+ # define IS_IA32	0
+ #endif
+ 
++#ifdef CONFIG_GRKERNSEC_SETXID
++extern void gr_delayed_cred_worker(void);
++#endif
++
+ /*
+  * We must return the syscall number to actually look up in the table.
+  * This can be -1L to skip running any syscall at all.
+@@ -1369,6 +1377,11 @@ long syscall_trace_enter(struct pt_regs *regs)
+ {
+ 	long ret = 0;
+ 
++#ifdef CONFIG_GRKERNSEC_SETXID
++	if (unlikely(test_and_clear_thread_flag(TIF_GRSEC_SETXID)))
++                gr_delayed_cred_worker();
++#endif		
++
+ 	/*
+ 	 * If we stepped into a sysenter/syscall insn, it trapped in
+ 	 * kernel mode; do_debug() cleared TF and set TIF_SINGLESTEP.
+@@ -1412,6 +1425,11 @@ void syscall_trace_leave(struct pt_regs *regs)
+ {
+ 	bool step;
+ 
++#ifdef CONFIG_GRKERNSEC_SETXID
++	if (unlikely(test_and_clear_thread_flag(TIF_GRSEC_SETXID)))
++                gr_delayed_cred_worker();
++#endif		
++
+ 	audit_syscall_exit(regs);
+ 
+ 	if (unlikely(test_thread_flag(TIF_SYSCALL_TRACEPOINT)))
 diff --git a/arch/x86/kernel/pvclock.c b/arch/x86/kernel/pvclock.c
 index 42eb330..139955c 100644
 --- a/arch/x86/kernel/pvclock.c
@@ -18820,7 +19252,7 @@ index d7d5099..28555d0 100644
  	bss_resource.start = virt_to_phys(&__bss_start);
  	bss_resource.end = virt_to_phys(&__bss_stop)-1;
 diff --git a/arch/x86/kernel/setup_percpu.c b/arch/x86/kernel/setup_percpu.c
-index 71f4727..217419b 100644
+index 5a98aa2..848d2be 100644
 --- a/arch/x86/kernel/setup_percpu.c
 +++ b/arch/x86/kernel/setup_percpu.c
 @@ -21,19 +21,17 @@
@@ -18879,7 +19311,7 @@ index 71f4727..217419b 100644
  	write_gdt_entry(get_cpu_gdt_table(cpu),
  			GDT_ENTRY_PERCPU, &gdt, DESCTYPE_S);
  #endif
-@@ -207,6 +209,11 @@ void __init setup_per_cpu_areas(void)
+@@ -219,6 +221,11 @@ void __init setup_per_cpu_areas(void)
  	/* alrighty, percpu areas up and running */
  	delta = (unsigned long)pcpu_base_addr - (unsigned long)__per_cpu_start;
  	for_each_possible_cpu(cpu) {
@@ -18891,7 +19323,7 @@ index 71f4727..217419b 100644
  		per_cpu_offset(cpu) = delta + pcpu_unit_offsets[cpu];
  		per_cpu(this_cpu_off, cpu) = per_cpu_offset(cpu);
  		per_cpu(cpu_number, cpu) = cpu;
-@@ -247,6 +254,12 @@ void __init setup_per_cpu_areas(void)
+@@ -259,6 +266,12 @@ void __init setup_per_cpu_areas(void)
  		 */
  		set_cpu_numa_node(cpu, early_cpu_to_node(cpu));
  #endif
@@ -20334,7 +20766,7 @@ index e385214..f8df033 100644
  
  	local_irq_disable();
 diff --git a/arch/x86/kvm/vmx.c b/arch/x86/kvm/vmx.c
-index 3b4c8d8..f457b63 100644
+index a7a6f60..04b745a 100644
 --- a/arch/x86/kvm/vmx.c
 +++ b/arch/x86/kvm/vmx.c
 @@ -1306,7 +1306,11 @@ static void reload_tss(void)
@@ -20349,7 +20781,7 @@ index 3b4c8d8..f457b63 100644
  	load_TR_desc();
  }
  
-@@ -2631,8 +2635,11 @@ static __init int hardware_setup(void)
+@@ -2637,8 +2641,11 @@ static __init int hardware_setup(void)
  	if (!cpu_has_vmx_flexpriority())
  		flexpriority_enabled = 0;
  
@@ -20363,7 +20795,7 @@ index 3b4c8d8..f457b63 100644
  
  	if (enable_ept && !cpu_has_vmx_ept_2m_page())
  		kvm_disable_largepages();
-@@ -3648,7 +3655,7 @@ static void vmx_set_constant_host_state(void)
+@@ -3654,7 +3661,7 @@ static void vmx_set_constant_host_state(void)
  	vmcs_writel(HOST_IDTR_BASE, dt.address);   /* 22.2.4 */
  
  	asm("mov $.Lkvm_vmx_return, %0" : "=r"(tmpl));
@@ -20372,7 +20804,7 @@ index 3b4c8d8..f457b63 100644
  
  	rdmsr(MSR_IA32_SYSENTER_CS, low32, high32);
  	vmcs_write32(HOST_IA32_SYSENTER_CS, low32);
-@@ -6184,6 +6191,12 @@ static void __noclone vmx_vcpu_run(struct kvm_vcpu *vcpu)
+@@ -6192,6 +6199,12 @@ static void __noclone vmx_vcpu_run(struct kvm_vcpu *vcpu)
  		"jmp .Lkvm_vmx_return \n\t"
  		".Llaunched: " __ex(ASM_VMX_VMRESUME) "\n\t"
  		".Lkvm_vmx_return: "
@@ -20385,7 +20817,7 @@ index 3b4c8d8..f457b63 100644
  		/* Save guest registers, load host registers, keep flags */
  		"mov %0, %c[wordsize](%%"R"sp) \n\t"
  		"pop %0 \n\t"
-@@ -6232,6 +6245,11 @@ static void __noclone vmx_vcpu_run(struct kvm_vcpu *vcpu)
+@@ -6240,6 +6253,11 @@ static void __noclone vmx_vcpu_run(struct kvm_vcpu *vcpu)
  #endif
  		[cr2]"i"(offsetof(struct vcpu_vmx, vcpu.arch.cr2)),
  		[wordsize]"i"(sizeof(ulong))
@@ -20397,7 +20829,7 @@ index 3b4c8d8..f457b63 100644
  	      : "cc", "memory"
  		, R"ax", R"bx", R"di", R"si"
  #ifdef CONFIG_X86_64
-@@ -6260,7 +6278,16 @@ static void __noclone vmx_vcpu_run(struct kvm_vcpu *vcpu)
+@@ -6268,7 +6286,16 @@ static void __noclone vmx_vcpu_run(struct kvm_vcpu *vcpu)
  		}
  	}
  
@@ -20416,7 +20848,7 @@ index 3b4c8d8..f457b63 100644
  
  	vmx->exit_reason = vmcs_read32(VM_EXIT_REASON);
 diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c
-index 9cbfc06..943ffa6 100644
+index 8d1c6c6..6e6d611 100644
 --- a/arch/x86/kvm/x86.c
 +++ b/arch/x86/kvm/x86.c
 @@ -873,6 +873,7 @@ static int do_set_msr(struct kvm_vcpu *vcpu, unsigned index, u64 *data)
@@ -20461,7 +20893,7 @@ index 9cbfc06..943ffa6 100644
  		return -EINVAL;
  	if (irqchip_in_kernel(vcpu->kvm))
  		return -ENXIO;
-@@ -3497,6 +3501,9 @@ gpa_t kvm_mmu_gva_to_gpa_system(struct kvm_vcpu *vcpu, gva_t gva,
+@@ -3499,6 +3503,9 @@ gpa_t kvm_mmu_gva_to_gpa_system(struct kvm_vcpu *vcpu, gva_t gva,
  
  static int kvm_read_guest_virt_helper(gva_t addr, void *val, unsigned int bytes,
  				      struct kvm_vcpu *vcpu, u32 access,
@@ -20471,7 +20903,7 @@ index 9cbfc06..943ffa6 100644
  				      struct x86_exception *exception)
  {
  	void *data = val;
-@@ -3528,6 +3535,9 @@ out:
+@@ -3530,6 +3537,9 @@ out:
  /* used for instruction fetching */
  static int kvm_fetch_guest_virt(struct x86_emulate_ctxt *ctxt,
  				gva_t addr, void *val, unsigned int bytes,
@@ -20481,7 +20913,7 @@ index 9cbfc06..943ffa6 100644
  				struct x86_exception *exception)
  {
  	struct kvm_vcpu *vcpu = emul_to_vcpu(ctxt);
-@@ -3552,6 +3562,9 @@ EXPORT_SYMBOL_GPL(kvm_read_guest_virt);
+@@ -3554,6 +3564,9 @@ EXPORT_SYMBOL_GPL(kvm_read_guest_virt);
  
  static int kvm_read_guest_virt_system(struct x86_emulate_ctxt *ctxt,
  				      gva_t addr, void *val, unsigned int bytes,
@@ -20491,7 +20923,7 @@ index 9cbfc06..943ffa6 100644
  				      struct x86_exception *exception)
  {
  	struct kvm_vcpu *vcpu = emul_to_vcpu(ctxt);
-@@ -3665,12 +3678,16 @@ static int read_prepare(struct kvm_vcpu *vcpu, void *val, int bytes)
+@@ -3667,12 +3680,16 @@ static int read_prepare(struct kvm_vcpu *vcpu, void *val, int bytes)
  }
  
  static int read_emulate(struct kvm_vcpu *vcpu, gpa_t gpa,
@@ -20508,7 +20940,7 @@ index 9cbfc06..943ffa6 100644
  			 void *val, int bytes)
  {
  	return emulator_write_phys(vcpu, gpa, val, bytes);
-@@ -3821,6 +3838,12 @@ static int emulator_cmpxchg_emulated(struct x86_emulate_ctxt *ctxt,
+@@ -3823,6 +3840,12 @@ static int emulator_cmpxchg_emulated(struct x86_emulate_ctxt *ctxt,
  				     const void *old,
  				     const void *new,
  				     unsigned int bytes,
@@ -20521,7 +20953,7 @@ index 9cbfc06..943ffa6 100644
  				     struct x86_exception *exception)
  {
  	struct kvm_vcpu *vcpu = emul_to_vcpu(ctxt);
-@@ -4780,7 +4803,7 @@ static void kvm_set_mmio_spte_mask(void)
+@@ -4782,7 +4805,7 @@ static void kvm_set_mmio_spte_mask(void)
  	kvm_mmu_set_mmio_spte_mask(mask);
  }
  
@@ -20906,7 +21338,7 @@ index e8e7e0d..56fd1b0 100644
  	movl %eax,  (v)
  	movl %edx, 4(v)
 diff --git a/arch/x86/lib/atomic64_cx8_32.S b/arch/x86/lib/atomic64_cx8_32.S
-index 391a083..d658e9f 100644
+index 391a083..3a2cf39 100644
 --- a/arch/x86/lib/atomic64_cx8_32.S
 +++ b/arch/x86/lib/atomic64_cx8_32.S
 @@ -35,10 +35,20 @@ ENTRY(atomic64_read_cx8)
@@ -21017,7 +21449,7 @@ index 391a083..d658e9f 100644
  
 -.macro incdec_return func ins insc
 -ENTRY(atomic64_\func\()_return_cx8)
-+.macro incdec_return func ins insc unchecked
++.macro incdec_return func ins insc unchecked=""
 +ENTRY(atomic64_\func\()_return\unchecked\()_cx8)
  	CFI_STARTPROC
  	SAVE ebx
@@ -24310,7 +24742,7 @@ index f4f29b1..5cac4fb 100644
  
  	return (void *)vaddr;
 diff --git a/arch/x86/mm/hugetlbpage.c b/arch/x86/mm/hugetlbpage.c
-index 8ecbb4b..29efd37 100644
+index 8ecbb4b..a269cab 100644
 --- a/arch/x86/mm/hugetlbpage.c
 +++ b/arch/x86/mm/hugetlbpage.c
 @@ -266,13 +266,20 @@ static unsigned long hugetlb_get_unmapped_area_bottomup(struct file *file,
@@ -24386,7 +24818,7 @@ index 8ecbb4b..29efd37 100644
  
  	/* don't allow allocations above current base */
  	if (mm->free_area_cache > base)
-@@ -321,66 +328,63 @@ static unsigned long hugetlb_get_unmapped_area_topdown(struct file *file,
+@@ -321,14 +328,15 @@ static unsigned long hugetlb_get_unmapped_area_topdown(struct file *file,
  	        largest_hole = 0;
  		mm->free_area_cache  = base;
  	}
@@ -24401,16 +24833,10 @@ index 8ecbb4b..29efd37 100644
 +	addr = (mm->free_area_cache - len);
  	do {
 +		addr &= huge_page_mask(h);
-+		vma = find_vma(mm, addr);
  		/*
  		 * Lookup failure means no vma is above this address,
  		 * i.e. return with success:
--		 */
--		vma = find_vma(mm, addr);
--		if (!vma)
--			return addr;
--
--		/*
+@@ -341,46 +349,47 @@ try_again:
  		 * new region fits between prev_vma->vm_end and
  		 * vma->vm_start, use it:
  		 */
@@ -24483,7 +24909,7 @@ index 8ecbb4b..29efd37 100644
  	mm->cached_hole_size = ~0UL;
  	addr = hugetlb_get_unmapped_area_bottomup(file, addr0,
  			len, pgoff, flags);
-@@ -388,6 +392,7 @@ fail:
+@@ -388,6 +397,7 @@ fail:
  	/*
  	 * Restore the topdown base:
  	 */
@@ -24491,7 +24917,7 @@ index 8ecbb4b..29efd37 100644
  	mm->free_area_cache = base;
  	mm->cached_hole_size = ~0UL;
  
-@@ -401,10 +406,19 @@ hugetlb_get_unmapped_area(struct file *file, unsigned long addr,
+@@ -401,10 +411,19 @@ hugetlb_get_unmapped_area(struct file *file, unsigned long addr,
  	struct hstate *h = hstate_file(file);
  	struct mm_struct *mm = current->mm;
  	struct vm_area_struct *vma;
@@ -24512,7 +24938,7 @@ index 8ecbb4b..29efd37 100644
  		return -ENOMEM;
  
  	if (flags & MAP_FIXED) {
-@@ -416,8 +430,7 @@ hugetlb_get_unmapped_area(struct file *file, unsigned long addr,
+@@ -416,8 +435,7 @@ hugetlb_get_unmapped_area(struct file *file, unsigned long addr,
  	if (addr) {
  		addr = ALIGN(addr, huge_page_size(h));
  		vma = find_vma(mm, addr);
@@ -24940,7 +25366,7 @@ index 8663f6c..829ae76 100644
  	printk(KERN_INFO "Write protecting the kernel text: %luk\n",
  		size >> 10);
 diff --git a/arch/x86/mm/init_64.c b/arch/x86/mm/init_64.c
-index 436a030..2b60088 100644
+index 436a030..4f97ffc 100644
 --- a/arch/x86/mm/init_64.c
 +++ b/arch/x86/mm/init_64.c
 @@ -75,7 +75,7 @@ early_param("gbpages", parse_direct_gbpages_on);
@@ -25057,6 +25483,15 @@ index 436a030..2b60088 100644
  	adr = (void *)(((unsigned long)adr) | left);
  
  	return adr;
+@@ -546,7 +560,7 @@ phys_pud_init(pud_t *pud_page, unsigned long addr, unsigned long end,
+ 		unmap_low_page(pmd);
+ 
+ 		spin_lock(&init_mm.page_table_lock);
+-		pud_populate(&init_mm, pud, __va(pmd_phys));
++		pud_populate_kernel(&init_mm, pud, __va(pmd_phys));
+ 		spin_unlock(&init_mm.page_table_lock);
+ 	}
+ 	__flush_tlb_all();
 @@ -592,7 +606,7 @@ kernel_physical_mapping_init(unsigned long start,
  		unmap_low_page(pud);
  
@@ -26837,10 +27272,10 @@ index 153407c..611cba9 100644
 -}
 -__setup("vdso=", vdso_setup);
 diff --git a/arch/x86/xen/enlighten.c b/arch/x86/xen/enlighten.c
-index 4172af8..2c8ed7f 100644
+index 4e517d4..68a48f5 100644
 --- a/arch/x86/xen/enlighten.c
 +++ b/arch/x86/xen/enlighten.c
-@@ -85,8 +85,6 @@ EXPORT_SYMBOL_GPL(xen_start_info);
+@@ -86,8 +86,6 @@ EXPORT_SYMBOL_GPL(xen_start_info);
  
  struct shared_info xen_dummy_shared_info;
  
@@ -26849,7 +27284,7 @@ index 4172af8..2c8ed7f 100644
  RESERVE_BRK(shared_info_page_brk, PAGE_SIZE);
  __read_mostly int xen_have_vector_callback;
  EXPORT_SYMBOL_GPL(xen_have_vector_callback);
-@@ -1029,30 +1027,30 @@ static const struct pv_apic_ops xen_apic_ops __initconst = {
+@@ -1030,30 +1028,30 @@ static const struct pv_apic_ops xen_apic_ops __initconst = {
  #endif
  };
  
@@ -26887,7 +27322,7 @@ index 4172af8..2c8ed7f 100644
  {
  	if (pm_power_off)
  		pm_power_off();
-@@ -1155,7 +1153,17 @@ asmlinkage void __init xen_start_kernel(void)
+@@ -1156,7 +1154,17 @@ asmlinkage void __init xen_start_kernel(void)
  	__userpte_alloc_gfp &= ~__GFP_HIGHMEM;
  
  	/* Work out if we support NX */
@@ -26906,7 +27341,7 @@ index 4172af8..2c8ed7f 100644
  
  	xen_setup_features();
  
-@@ -1186,13 +1194,6 @@ asmlinkage void __init xen_start_kernel(void)
+@@ -1187,13 +1195,6 @@ asmlinkage void __init xen_start_kernel(void)
  
  	machine_ops = xen_machine_ops;
  
@@ -26921,10 +27356,10 @@ index 4172af8..2c8ed7f 100644
  
  #ifdef CONFIG_ACPI_NUMA
 diff --git a/arch/x86/xen/mmu.c b/arch/x86/xen/mmu.c
-index 95c1cf6..4bfa5be 100644
+index dc19347..1b07a2c 100644
 --- a/arch/x86/xen/mmu.c
 +++ b/arch/x86/xen/mmu.c
-@@ -1733,6 +1733,9 @@ pgd_t * __init xen_setup_kernel_pagetable(pgd_t *pgd,
+@@ -1738,6 +1738,9 @@ pgd_t * __init xen_setup_kernel_pagetable(pgd_t *pgd,
  	convert_pfn_mfn(init_level4_pgt);
  	convert_pfn_mfn(level3_ident_pgt);
  	convert_pfn_mfn(level3_kernel_pgt);
@@ -26934,7 +27369,7 @@ index 95c1cf6..4bfa5be 100644
  
  	l3 = m2v(pgd[pgd_index(__START_KERNEL_map)].pgd);
  	l2 = m2v(l3[pud_index(__START_KERNEL_map)].pud);
-@@ -1751,7 +1754,11 @@ pgd_t * __init xen_setup_kernel_pagetable(pgd_t *pgd,
+@@ -1756,7 +1759,11 @@ pgd_t * __init xen_setup_kernel_pagetable(pgd_t *pgd,
  	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);
@@ -26946,7 +27381,7 @@ index 95c1cf6..4bfa5be 100644
  	set_page_prot(level2_kernel_pgt, PAGE_KERNEL_RO);
  	set_page_prot(level2_fixmap_pgt, PAGE_KERNEL_RO);
  
-@@ -1958,6 +1965,7 @@ static void __init xen_post_allocator_init(void)
+@@ -1963,6 +1970,7 @@ static void __init xen_post_allocator_init(void)
  	pv_mmu_ops.set_pud = xen_set_pud;
  #if PAGETABLE_LEVELS == 4
  	pv_mmu_ops.set_pgd = xen_set_pgd;
@@ -26954,7 +27389,7 @@ index 95c1cf6..4bfa5be 100644
  #endif
  
  	/* This will work as long as patching hasn't happened yet
-@@ -2039,6 +2047,7 @@ static const struct pv_mmu_ops xen_mmu_ops __initconst = {
+@@ -2044,6 +2052,7 @@ static const struct pv_mmu_ops xen_mmu_ops __initconst = {
  	.pud_val = PV_CALLEE_SAVE(xen_pud_val),
  	.make_pud = PV_CALLEE_SAVE(xen_make_pud),
  	.set_pgd = xen_set_pgd_hyper,
@@ -46851,10 +47286,10 @@ index 5698746..6086012 100644
  		kfree(s);
  }
 diff --git a/fs/hugetlbfs/inode.c b/fs/hugetlbfs/inode.c
-index 3645cd3..786809c 100644
+index c60267e..193d9e4 100644
 --- a/fs/hugetlbfs/inode.c
 +++ b/fs/hugetlbfs/inode.c
-@@ -914,7 +914,7 @@ static struct file_system_type hugetlbfs_fs_type = {
+@@ -902,7 +902,7 @@ static struct file_system_type hugetlbfs_fs_type = {
  	.kill_sb	= kill_litter_super,
  };
  
@@ -47597,7 +48032,7 @@ index f649fba..236bf92 100644
  
  void nfs_fattr_init(struct nfs_fattr *fattr)
 diff --git a/fs/nfsd/vfs.c b/fs/nfsd/vfs.c
-index edf6d3e..bdd1da7 100644
+index b96fe94..a4dbece 100644
 --- a/fs/nfsd/vfs.c
 +++ b/fs/nfsd/vfs.c
 @@ -925,7 +925,7 @@ nfsd_vfs_read(struct svc_rqst *rqstp, struct svc_fh *fhp, struct file *file,
@@ -49831,10 +50266,10 @@ index ab30253..4d86958 100644
  		kfree(s);
 diff --git a/grsecurity/Kconfig b/grsecurity/Kconfig
 new file mode 100644
-index 0000000..4089e05
+index 0000000..2645296
 --- /dev/null
 +++ b/grsecurity/Kconfig
-@@ -0,0 +1,1078 @@
+@@ -0,0 +1,1079 @@
 +#
 +# grecurity configuration
 +#
@@ -49969,7 +50404,7 @@ index 0000000..4089e05
 +	select GRKERNSEC_PROC_ADD
 +	select GRKERNSEC_CHROOT_CHMOD
 +	select GRKERNSEC_CHROOT_NICE
-+	select GRKERNSEC_SETXID
++	select GRKERNSEC_SETXID if (X86 || SPARC64 || PPC || ARM || MIPS)
 +	select GRKERNSEC_AUDIT_MOUNT
 +	select GRKERNSEC_MODHARDEN if (MODULES)
 +	select GRKERNSEC_HARDEN_PTRACE
@@ -50664,6 +51099,7 @@ index 0000000..4089e05
 +
 +config GRKERNSEC_SETXID
 +	bool "Enforce consistent multithreaded privileges"
++	depends on (X86 || SPARC64 || PPC || ARM || MIPS)
 +	help
 +	  If you say Y here, a change from a root uid to a non-root uid
 +	  in a multithreaded application will cause the resulting uids,
@@ -50959,10 +51395,10 @@ index 0000000..1b9afa9
 +endif
 diff --git a/grsecurity/gracl.c b/grsecurity/gracl.c
 new file mode 100644
-index 0000000..42813ac
+index 0000000..a6d83f0
 --- /dev/null
 +++ b/grsecurity/gracl.c
-@@ -0,0 +1,4192 @@
+@@ -0,0 +1,4193 @@
 +#include <linux/kernel.h>
 +#include <linux/module.h>
 +#include <linux/sched.h>
@@ -54820,21 +55256,22 @@ index 0000000..42813ac
 +	if (unlikely(!(gr_status & GR_READY)))
 +		return 0;
 +#endif
++	if (request == PTRACE_ATTACH || request == PTRACE_SEIZE) {
++		read_lock(&tasklist_lock);
++		while (tmp->pid > 0) {
++			if (tmp == curtemp)
++				break;
++			tmp = tmp->real_parent;
++		}
 +
-+	read_lock(&tasklist_lock);
-+	while (tmp->pid > 0) {
-+		if (tmp == curtemp)
-+			break;
-+		tmp = tmp->real_parent;
-+	}
-+
-+	if (tmp->pid == 0 && ((grsec_enable_harden_ptrace && current_uid() && !(gr_status & GR_READY)) ||
-+				((gr_status & GR_READY)	&& !(current->acl->mode & GR_RELAXPTRACE)))) {
++		if (tmp->pid == 0 && ((grsec_enable_harden_ptrace && current_uid() && !(gr_status & GR_READY)) ||
++					((gr_status & GR_READY)	&& !(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);
-+		gr_log_ptrace(GR_DONT_AUDIT, GR_PTRACE_ACL_MSG, task);
-+		return 1;
 +	}
-+	read_unlock(&tasklist_lock);
 +
 +#ifdef CONFIG_GRKERNSEC_HARDEN_PTRACE
 +	if (!(gr_status & GR_READY))
@@ -62544,7 +62981,7 @@ index 9c07dce..a92fa71 100644
  	if (atomic_sub_and_test((int) count, &kref->refcount)) {
  		release(kref);
 diff --git a/include/linux/kvm_host.h b/include/linux/kvm_host.h
-index bc21720..098aefa 100644
+index 4c4e83d..5f16617 100644
 --- a/include/linux/kvm_host.h
 +++ b/include/linux/kvm_host.h
 @@ -326,7 +326,7 @@ void kvm_vcpu_uninit(struct kvm_vcpu *vcpu);
@@ -63114,7 +63551,7 @@ index ffc0213..2c1f2cb 100644
  	return nd->saved_names[nd->depth];
  }
 diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h
-index 4f3b01a..8256d1a 100644
+index 7e472b7..212d381 100644
 --- a/include/linux/netdevice.h
 +++ b/include/linux/netdevice.h
 @@ -1002,6 +1002,7 @@ struct net_device_ops {
@@ -66076,7 +66513,7 @@ index 42e8fa0..9e7406b 100644
  		return -ENOMEM;
  
 diff --git a/kernel/cred.c b/kernel/cred.c
-index 48c6fd3..3342f00 100644
+index 48c6fd3..8398912 100644
 --- a/kernel/cred.c
 +++ b/kernel/cred.c
 @@ -204,6 +204,15 @@ void exit_creds(struct task_struct *tsk)
@@ -66113,7 +66550,7 @@ index 48c6fd3..3342f00 100644
  	/* dumpability changes */
  	if (old->euid != new->euid ||
  	    old->egid != new->egid ||
-@@ -540,6 +551,92 @@ int commit_creds(struct cred *new)
+@@ -540,6 +551,101 @@ int commit_creds(struct cred *new)
  	put_cred(old);
  	return 0;
  }
@@ -66179,6 +66616,8 @@ index 48c6fd3..3342f00 100644
 +int commit_creds(struct cred *new)
 +{
 +#ifdef CONFIG_GRKERNSEC_SETXID
++	int ret;
++	int schedule_it = 0;
 +	struct task_struct *t;
 +
 +	/* we won't get called with tasklist_lock held for writing
@@ -66187,20 +66626,27 @@ index 48c6fd3..3342f00 100644
 +	*/
 +	if (grsec_enable_setxid && !current_is_single_threaded() &&
 +	    !current_uid() && new->uid) {
++		schedule_it = 1;
++	}
++	ret = __commit_creds(new);
++	if (schedule_it) {
 +		rcu_read_lock();
 +		read_lock(&tasklist_lock);
 +		for (t = next_thread(current); t != current;
 +		     t = next_thread(t)) {
 +			if (t->delayed_cred == NULL) {
 +				t->delayed_cred = get_cred(new);
++				set_tsk_thread_flag(t, TIF_GRSEC_SETXID);
 +				set_tsk_need_resched(t);
 +			}
 +		}
 +		read_unlock(&tasklist_lock);
 +		rcu_read_unlock();
 +	}
-+#endif
++	return ret;
++#else
 +	return __commit_creds(new);
++#endif
 +}
 +
  EXPORT_SYMBOL(commit_creds);
@@ -69073,39 +69519,10 @@ index e8a1f83..363d17d 100644
  #ifdef CONFIG_RT_GROUP_SCHED
  	/*
 diff --git a/kernel/sched/core.c b/kernel/sched/core.c
-index 478a04c..6970d99 100644
+index 478a04c..e16339a 100644
 --- a/kernel/sched/core.c
 +++ b/kernel/sched/core.c
-@@ -3142,6 +3142,19 @@ pick_next_task(struct rq *rq)
- 	BUG(); /* the idle class will always have a runnable task */
- }
- 
-+#ifdef CONFIG_GRKERNSEC_SETXID
-+extern void gr_delayed_cred_worker(void);
-+static inline void gr_cred_schedule(void)
-+{
-+	if (unlikely(current->delayed_cred))
-+		gr_delayed_cred_worker();
-+}
-+#else
-+static inline void gr_cred_schedule(void)
-+{
-+}
-+#endif
-+
- /*
-  * __schedule() is the main scheduler function.
-  */
-@@ -3161,6 +3174,8 @@ need_resched:
- 
- 	schedule_debug(prev);
- 
-+	gr_cred_schedule();
-+
- 	if (sched_feat(HRTICK))
- 		hrtick_clear(rq);
- 
-@@ -3851,6 +3866,8 @@ int can_nice(const struct task_struct *p, const int nice)
+@@ -3851,6 +3851,8 @@ int can_nice(const struct task_struct *p, const int nice)
  	/* convert nice value [19,-20] to rlimit style value [1,40] */
  	int nice_rlim = 20 - nice;
  
@@ -69114,7 +69531,7 @@ index 478a04c..6970d99 100644
  	return (nice_rlim <= task_rlimit(p, RLIMIT_NICE) ||
  		capable(CAP_SYS_NICE));
  }
-@@ -3884,7 +3901,8 @@ SYSCALL_DEFINE1(nice, int, increment)
+@@ -3884,7 +3886,8 @@ SYSCALL_DEFINE1(nice, int, increment)
  	if (nice > 19)
  		nice = 19;
  
@@ -69124,7 +69541,7 @@ index 478a04c..6970d99 100644
  		return -EPERM;
  
  	retval = security_task_setnice(current, nice);
-@@ -4041,6 +4059,7 @@ recheck:
+@@ -4041,6 +4044,7 @@ recheck:
  			unsigned long rlim_rtprio =
  					task_rlimit(p, RLIMIT_RTPRIO);
  
@@ -70448,6 +70865,28 @@ index 013a761..c28f3fc 100644
  #define free(a) kfree(a)
  #endif
  
+diff --git a/lib/ioremap.c b/lib/ioremap.c
+index da4e2ad..6373b5f 100644
+--- a/lib/ioremap.c
++++ b/lib/ioremap.c
+@@ -38,7 +38,7 @@ static inline int ioremap_pmd_range(pud_t *pud, unsigned long addr,
+ 	unsigned long next;
+ 
+ 	phys_addr -= addr;
+-	pmd = pmd_alloc(&init_mm, pud, addr);
++	pmd = pmd_alloc_kernel(&init_mm, pud, addr);
+ 	if (!pmd)
+ 		return -ENOMEM;
+ 	do {
+@@ -56,7 +56,7 @@ static inline int ioremap_pud_range(pgd_t *pgd, unsigned long addr,
+ 	unsigned long next;
+ 
+ 	phys_addr -= addr;
+-	pud = pud_alloc(&init_mm, pgd, addr);
++	pud = pud_alloc_kernel(&init_mm, pgd, addr);
+ 	if (!pud)
+ 		return -ENOMEM;
+ 	do {
 diff --git a/lib/is_single_threaded.c b/lib/is_single_threaded.c
 index bd2bea9..6b3c95e 100644
 --- a/lib/is_single_threaded.c
@@ -70677,10 +71116,10 @@ index 8f7fc39..69bf1e9 100644
  	/* if an huge pmd materialized from under us just retry later */
  	if (unlikely(pmd_trans_huge(*pmd)))
 diff --git a/mm/hugetlb.c b/mm/hugetlb.c
-index a7cf829..d60e0e1 100644
+index 24b1787..e0fbc01 100644
 --- a/mm/hugetlb.c
 +++ b/mm/hugetlb.c
-@@ -2346,6 +2346,27 @@ static int unmap_ref_private(struct mm_struct *mm, struct vm_area_struct *vma,
+@@ -2425,6 +2425,27 @@ static int unmap_ref_private(struct mm_struct *mm, struct vm_area_struct *vma,
  	return 1;
  }
  
@@ -70708,7 +71147,7 @@ index a7cf829..d60e0e1 100644
  /*
   * Hugetlb_cow() should be called with page lock of the original hugepage held.
   * Called with hugetlb_instantiation_mutex held and pte_page locked so we
-@@ -2459,6 +2480,11 @@ retry_avoidcopy:
+@@ -2538,6 +2559,11 @@ retry_avoidcopy:
  				make_huge_pte(vma, new_page, 1));
  		page_remove_rmap(old_page);
  		hugepage_add_new_anon_rmap(new_page, vma, address);
@@ -70720,7 +71159,7 @@ index a7cf829..d60e0e1 100644
  		/* Make the old page be freed below */
  		new_page = old_page;
  		mmu_notifier_invalidate_range_end(mm,
-@@ -2613,6 +2639,10 @@ retry:
+@@ -2692,6 +2718,10 @@ retry:
  				&& (vma->vm_flags & VM_SHARED)));
  	set_huge_pte_at(mm, address, ptep, new_pte);
  
@@ -70731,7 +71170,7 @@ index a7cf829..d60e0e1 100644
  	if ((flags & FAULT_FLAG_WRITE) && !(vma->vm_flags & VM_SHARED)) {
  		/* Optimization, do the COW without a second fault */
  		ret = hugetlb_cow(mm, vma, address, ptep, new_pte, page);
-@@ -2642,6 +2672,10 @@ int hugetlb_fault(struct mm_struct *mm, struct vm_area_struct *vma,
+@@ -2721,6 +2751,10 @@ int hugetlb_fault(struct mm_struct *mm, struct vm_area_struct *vma,
  	static DEFINE_MUTEX(hugetlb_instantiation_mutex);
  	struct hstate *h = hstate_vma(vma);
  
@@ -70742,7 +71181,7 @@ index a7cf829..d60e0e1 100644
  	address &= huge_page_mask(h);
  
  	ptep = huge_pte_offset(mm, address);
-@@ -2655,6 +2689,26 @@ int hugetlb_fault(struct mm_struct *mm, struct vm_area_struct *vma,
+@@ -2734,6 +2768,26 @@ int hugetlb_fault(struct mm_struct *mm, struct vm_area_struct *vma,
  			       VM_FAULT_SET_HINDEX(h - hstates);
  	}
  
@@ -70982,7 +71421,7 @@ index 56080ea..115071e 100644
  	/* keep elevated page count for bad page */
  	return ret;
 diff --git a/mm/memory.c b/mm/memory.c
-index 10b4dda..b1f60ad 100644
+index 10b4dda..06857f3 100644
 --- a/mm/memory.c
 +++ b/mm/memory.c
 @@ -457,8 +457,12 @@ static inline void free_pmd_range(struct mmu_gather *tlb, pud_t *pud,
@@ -71109,7 +71548,29 @@ index 10b4dda..b1f60ad 100644
  
  	if (addr < vma->vm_start || addr >= vma->vm_end)
  		return -EFAULT;
-@@ -2472,6 +2485,186 @@ static inline void cow_user_page(struct page *dst, struct page *src, unsigned lo
+@@ -2364,7 +2377,9 @@ static int apply_to_pmd_range(struct mm_struct *mm, pud_t *pud,
+ 
+ 	BUG_ON(pud_huge(*pud));
+ 
+-	pmd = pmd_alloc(mm, pud, addr);
++	pmd = (mm == &init_mm) ?
++		pmd_alloc_kernel(mm, pud, addr) :
++		pmd_alloc(mm, pud, addr);
+ 	if (!pmd)
+ 		return -ENOMEM;
+ 	do {
+@@ -2384,7 +2399,9 @@ static int apply_to_pud_range(struct mm_struct *mm, pgd_t *pgd,
+ 	unsigned long next;
+ 	int err;
+ 
+-	pud = pud_alloc(mm, pgd, addr);
++	pud = (mm == &init_mm) ?
++		pud_alloc_kernel(mm, pgd, addr) :
++		pud_alloc(mm, pgd, addr);
+ 	if (!pud)
+ 		return -ENOMEM;
+ 	do {
+@@ -2472,6 +2489,186 @@ static inline void cow_user_page(struct page *dst, struct page *src, unsigned lo
  		copy_user_highpage(dst, src, va, vma);
  }
  
@@ -71296,7 +71757,7 @@ index 10b4dda..b1f60ad 100644
  /*
   * 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
-@@ -2683,6 +2876,12 @@ gotten:
+@@ -2683,6 +2880,12 @@ gotten:
  	 */
  	page_table = pte_offset_map_lock(mm, pmd, address, &ptl);
  	if (likely(pte_same(*page_table, orig_pte))) {
@@ -71309,7 +71770,7 @@ index 10b4dda..b1f60ad 100644
  		if (old_page) {
  			if (!PageAnon(old_page)) {
  				dec_mm_counter_fast(mm, MM_FILEPAGES);
-@@ -2734,6 +2933,10 @@ gotten:
+@@ -2734,6 +2937,10 @@ gotten:
  			page_remove_rmap(old_page);
  		}
  
@@ -71320,7 +71781,7 @@ index 10b4dda..b1f60ad 100644
  		/* Free the old page.. */
  		new_page = old_page;
  		ret |= VM_FAULT_WRITE;
-@@ -3013,6 +3216,11 @@ static int do_swap_page(struct mm_struct *mm, struct vm_area_struct *vma,
+@@ -3013,6 +3220,11 @@ static int do_swap_page(struct mm_struct *mm, struct vm_area_struct *vma,
  	swap_free(entry);
  	if (vm_swap_full() || (vma->vm_flags & VM_LOCKED) || PageMlocked(page))
  		try_to_free_swap(page);
@@ -71332,7 +71793,7 @@ index 10b4dda..b1f60ad 100644
  	unlock_page(page);
  	if (swapcache) {
  		/*
-@@ -3036,6 +3244,11 @@ static int do_swap_page(struct mm_struct *mm, struct vm_area_struct *vma,
+@@ -3036,6 +3248,11 @@ static int do_swap_page(struct mm_struct *mm, struct vm_area_struct *vma,
  
  	/* No need to invalidate - it was non-present before */
  	update_mmu_cache(vma, address, page_table);
@@ -71344,7 +71805,7 @@ index 10b4dda..b1f60ad 100644
  unlock:
  	pte_unmap_unlock(page_table, ptl);
  out:
-@@ -3055,40 +3268,6 @@ out_release:
+@@ -3055,40 +3272,6 @@ out_release:
  }
  
  /*
@@ -71385,7 +71846,7 @@ index 10b4dda..b1f60ad 100644
   * We enter with non-exclusive mmap_sem (to exclude vma changes,
   * but allow concurrent faults), and pte mapped but not yet locked.
   * We return with mmap_sem still held, but pte unmapped and unlocked.
-@@ -3097,27 +3276,23 @@ static int do_anonymous_page(struct mm_struct *mm, struct vm_area_struct *vma,
+@@ -3097,27 +3280,23 @@ static int do_anonymous_page(struct mm_struct *mm, struct vm_area_struct *vma,
  		unsigned long address, pte_t *page_table, pmd_t *pmd,
  		unsigned int flags)
  {
@@ -71418,7 +71879,7 @@ index 10b4dda..b1f60ad 100644
  	if (unlikely(anon_vma_prepare(vma)))
  		goto oom;
  	page = alloc_zeroed_user_highpage_movable(vma, address);
-@@ -3136,6 +3311,11 @@ static int do_anonymous_page(struct mm_struct *mm, struct vm_area_struct *vma,
+@@ -3136,6 +3315,11 @@ static int do_anonymous_page(struct mm_struct *mm, struct vm_area_struct *vma,
  	if (!pte_none(*page_table))
  		goto release;
  
@@ -71430,7 +71891,7 @@ index 10b4dda..b1f60ad 100644
  	inc_mm_counter_fast(mm, MM_ANONPAGES);
  	page_add_new_anon_rmap(page, vma, address);
  setpte:
-@@ -3143,6 +3323,12 @@ setpte:
+@@ -3143,6 +3327,12 @@ setpte:
  
  	/* No need to invalidate - it was non-present before */
  	update_mmu_cache(vma, address, page_table);
@@ -71443,7 +71904,7 @@ index 10b4dda..b1f60ad 100644
  unlock:
  	pte_unmap_unlock(page_table, ptl);
  	return 0;
-@@ -3286,6 +3472,12 @@ static int __do_fault(struct mm_struct *mm, struct vm_area_struct *vma,
+@@ -3286,6 +3476,12 @@ static int __do_fault(struct mm_struct *mm, struct vm_area_struct *vma,
  	 */
  	/* Only go through if we didn't race with anybody else... */
  	if (likely(pte_same(*page_table, orig_pte))) {
@@ -71456,7 +71917,7 @@ index 10b4dda..b1f60ad 100644
  		flush_icache_page(vma, page);
  		entry = mk_pte(page, vma->vm_page_prot);
  		if (flags & FAULT_FLAG_WRITE)
-@@ -3305,6 +3497,14 @@ static int __do_fault(struct mm_struct *mm, struct vm_area_struct *vma,
+@@ -3305,6 +3501,14 @@ static int __do_fault(struct mm_struct *mm, struct vm_area_struct *vma,
  
  		/* no need to invalidate: a not-present page won't be cached */
  		update_mmu_cache(vma, address, page_table);
@@ -71471,7 +71932,7 @@ index 10b4dda..b1f60ad 100644
  	} else {
  		if (cow_page)
  			mem_cgroup_uncharge_page(cow_page);
-@@ -3458,6 +3658,12 @@ int handle_pte_fault(struct mm_struct *mm,
+@@ -3458,6 +3662,12 @@ int handle_pte_fault(struct mm_struct *mm,
  		if (flags & FAULT_FLAG_WRITE)
  			flush_tlb_fix_spurious_fault(vma, address);
  	}
@@ -71484,7 +71945,7 @@ index 10b4dda..b1f60ad 100644
  unlock:
  	pte_unmap_unlock(pte, ptl);
  	return 0;
-@@ -3474,6 +3680,10 @@ int handle_mm_fault(struct mm_struct *mm, struct vm_area_struct *vma,
+@@ -3474,6 +3684,10 @@ int handle_mm_fault(struct mm_struct *mm, struct vm_area_struct *vma,
  	pmd_t *pmd;
  	pte_t *pte;
  
@@ -71495,7 +71956,7 @@ index 10b4dda..b1f60ad 100644
  	__set_current_state(TASK_RUNNING);
  
  	count_vm_event(PGFAULT);
-@@ -3485,6 +3695,34 @@ int handle_mm_fault(struct mm_struct *mm, struct vm_area_struct *vma,
+@@ -3485,6 +3699,34 @@ int handle_mm_fault(struct mm_struct *mm, struct vm_area_struct *vma,
  	if (unlikely(is_vm_hugetlb_page(vma)))
  		return hugetlb_fault(mm, vma, address, flags);
  
@@ -71530,7 +71991,7 @@ index 10b4dda..b1f60ad 100644
  	pgd = pgd_offset(mm, address);
  	pud = pud_alloc(mm, pgd, address);
  	if (!pud)
-@@ -3514,7 +3752,7 @@ int handle_mm_fault(struct mm_struct *mm, struct vm_area_struct *vma,
+@@ -3514,7 +3756,7 @@ int handle_mm_fault(struct mm_struct *mm, struct vm_area_struct *vma,
  	 * run pte_offset_map on the pmd, if an huge pmd could
  	 * materialize from under us from a different thread.
  	 */
@@ -71539,7 +72000,7 @@ index 10b4dda..b1f60ad 100644
  		return VM_FAULT_OOM;
  	/* if an huge pmd materialized from under us just retry later */
  	if (unlikely(pmd_trans_huge(*pmd)))
-@@ -3551,6 +3789,23 @@ int __pud_alloc(struct mm_struct *mm, pgd_t *pgd, unsigned long address)
+@@ -3551,6 +3793,23 @@ int __pud_alloc(struct mm_struct *mm, pgd_t *pgd, unsigned long address)
  	spin_unlock(&mm->page_table_lock);
  	return 0;
  }
@@ -71563,7 +72024,7 @@ index 10b4dda..b1f60ad 100644
  #endif /* __PAGETABLE_PUD_FOLDED */
  
  #ifndef __PAGETABLE_PMD_FOLDED
-@@ -3581,6 +3836,30 @@ int __pmd_alloc(struct mm_struct *mm, pud_t *pud, unsigned long address)
+@@ -3581,6 +3840,30 @@ int __pmd_alloc(struct mm_struct *mm, pud_t *pud, unsigned long address)
  	spin_unlock(&mm->page_table_lock);
  	return 0;
  }
@@ -71594,7 +72055,7 @@ index 10b4dda..b1f60ad 100644
  #endif /* __PAGETABLE_PMD_FOLDED */
  
  int make_pages_present(unsigned long addr, unsigned long end)
-@@ -3618,7 +3897,7 @@ static int __init gate_vma_init(void)
+@@ -3618,7 +3901,7 @@ 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;
@@ -75428,7 +75889,7 @@ index 68bbf9f..5ef0d12 100644
  
  	return err;
 diff --git a/net/core/dev.c b/net/core/dev.c
-index 7f72c9c..e29943b 100644
+index 0336374..659088a 100644
 --- a/net/core/dev.c
 +++ b/net/core/dev.c
 @@ -1138,10 +1138,14 @@ void dev_load(struct net *net, const char *name)
@@ -75446,7 +75907,7 @@ index 7f72c9c..e29943b 100644
  	}
  }
  EXPORT_SYMBOL(dev_load);
-@@ -1585,7 +1589,7 @@ int dev_forward_skb(struct net_device *dev, struct sk_buff *skb)
+@@ -1605,7 +1609,7 @@ int dev_forward_skb(struct net_device *dev, struct sk_buff *skb)
  {
  	if (skb_shinfo(skb)->tx_flags & SKBTX_DEV_ZEROCOPY) {
  		if (skb_copy_ubufs(skb, GFP_ATOMIC)) {
@@ -75455,7 +75916,7 @@ index 7f72c9c..e29943b 100644
  			kfree_skb(skb);
  			return NET_RX_DROP;
  		}
-@@ -1595,7 +1599,7 @@ int dev_forward_skb(struct net_device *dev, struct sk_buff *skb)
+@@ -1615,7 +1619,7 @@ int dev_forward_skb(struct net_device *dev, struct sk_buff *skb)
  	nf_reset(skb);
  
  	if (unlikely(!is_skb_forwardable(dev, skb))) {
@@ -75464,7 +75925,7 @@ index 7f72c9c..e29943b 100644
  		kfree_skb(skb);
  		return NET_RX_DROP;
  	}
-@@ -2057,7 +2061,7 @@ static int illegal_highdma(struct net_device *dev, struct sk_buff *skb)
+@@ -2077,7 +2081,7 @@ static int illegal_highdma(struct net_device *dev, struct sk_buff *skb)
  
  struct dev_gso_cb {
  	void (*destructor)(struct sk_buff *skb);
@@ -75473,7 +75934,7 @@ index 7f72c9c..e29943b 100644
  
  #define DEV_GSO_CB(skb) ((struct dev_gso_cb *)(skb)->cb)
  
-@@ -2913,7 +2917,7 @@ enqueue:
+@@ -2933,7 +2937,7 @@ enqueue:
  
  	local_irq_restore(flags);
  
@@ -75482,7 +75943,7 @@ index 7f72c9c..e29943b 100644
  	kfree_skb(skb);
  	return NET_RX_DROP;
  }
-@@ -2985,7 +2989,7 @@ int netif_rx_ni(struct sk_buff *skb)
+@@ -3005,7 +3009,7 @@ int netif_rx_ni(struct sk_buff *skb)
  }
  EXPORT_SYMBOL(netif_rx_ni);
  
@@ -75491,7 +75952,7 @@ index 7f72c9c..e29943b 100644
  {
  	struct softnet_data *sd = &__get_cpu_var(softnet_data);
  
-@@ -3273,7 +3277,7 @@ ncls:
+@@ -3293,7 +3297,7 @@ ncls:
  	if (pt_prev) {
  		ret = pt_prev->func(skb, skb->dev, pt_prev, orig_dev);
  	} else {
@@ -75500,7 +75961,7 @@ index 7f72c9c..e29943b 100644
  		kfree_skb(skb);
  		/* Jamal, now you will not able to escape explaining
  		 * me how you were going to use this. :-)
-@@ -3833,7 +3837,7 @@ void netif_napi_del(struct napi_struct *napi)
+@@ -3853,7 +3857,7 @@ void netif_napi_del(struct napi_struct *napi)
  }
  EXPORT_SYMBOL(netif_napi_del);
  
@@ -75509,7 +75970,7 @@ index 7f72c9c..e29943b 100644
  {
  	struct softnet_data *sd = &__get_cpu_var(softnet_data);
  	unsigned long time_limit = jiffies + 2;
-@@ -5858,7 +5862,7 @@ struct rtnl_link_stats64 *dev_get_stats(struct net_device *dev,
+@@ -5878,7 +5882,7 @@ struct rtnl_link_stats64 *dev_get_stats(struct net_device *dev,
  	} else {
  		netdev_stats_to_stats64(storage, &dev->stats);
  	}
@@ -86454,7 +86915,7 @@ index af0f22f..9a7d479 100644
                         break;
         }
 diff --git a/virt/kvm/kvm_main.c b/virt/kvm/kvm_main.c
-index c4ac57e..527711d 100644
+index 7858228..2919715 100644
 --- a/virt/kvm/kvm_main.c
 +++ b/virt/kvm/kvm_main.c
 @@ -75,7 +75,7 @@ LIST_HEAD(vm_list);
@@ -86466,7 +86927,7 @@ index c4ac57e..527711d 100644
  
  struct kmem_cache *kvm_vcpu_cache;
  EXPORT_SYMBOL_GPL(kvm_vcpu_cache);
-@@ -2313,7 +2313,7 @@ static void hardware_enable_nolock(void *junk)
+@@ -2318,7 +2318,7 @@ static void hardware_enable_nolock(void *junk)
  
  	if (r) {
  		cpumask_clear_cpu(cpu, cpus_hardware_enabled);
@@ -86475,7 +86936,7 @@ index c4ac57e..527711d 100644
  		printk(KERN_INFO "kvm: enabling virtualization on "
  				 "CPU%d failed\n", cpu);
  	}
-@@ -2367,10 +2367,10 @@ static int hardware_enable_all(void)
+@@ -2372,10 +2372,10 @@ static int hardware_enable_all(void)
  
  	kvm_usage_count++;
  	if (kvm_usage_count == 1) {
@@ -86488,7 +86949,7 @@ index c4ac57e..527711d 100644
  			hardware_disable_all_nolock();
  			r = -EBUSY;
  		}
-@@ -2733,7 +2733,7 @@ static void kvm_sched_out(struct preempt_notifier *pn,
+@@ -2738,7 +2738,7 @@ static void kvm_sched_out(struct preempt_notifier *pn,
  	kvm_arch_vcpu_put(vcpu);
  }
  
@@ -86497,7 +86958,7 @@ index c4ac57e..527711d 100644
  		  struct module *module)
  {
  	int r;
-@@ -2796,7 +2796,7 @@ int kvm_init(void *opaque, unsigned vcpu_size, unsigned vcpu_align,
+@@ -2801,7 +2801,7 @@ int kvm_init(void *opaque, unsigned vcpu_size, unsigned vcpu_align,
  	if (!vcpu_align)
  		vcpu_align = __alignof__(struct kvm_vcpu);
  	kvm_vcpu_cache = kmem_cache_create("kvm_vcpu", vcpu_size, vcpu_align,
@@ -86506,7 +86967,7 @@ index c4ac57e..527711d 100644
  	if (!kvm_vcpu_cache) {
  		r = -ENOMEM;
  		goto out_free_3;
-@@ -2806,9 +2806,11 @@ int kvm_init(void *opaque, unsigned vcpu_size, unsigned vcpu_align,
+@@ -2811,9 +2811,11 @@ int kvm_init(void *opaque, unsigned vcpu_size, unsigned vcpu_align,
  	if (r)
  		goto out_free;