diff options
Diffstat (limited to 'main/libxi')
| -rw-r--r-- | main/libxi/APKBUILD | 19 | ||||
| -rw-r--r-- | main/libxi/CVE-2013-1984_CVE-2013-1995_CVE-2013-1998.patch | 894 |
2 files changed, 6 insertions, 907 deletions
diff --git a/main/libxi/APKBUILD b/main/libxi/APKBUILD index 350ef8b25..485d33e98 100644 --- a/main/libxi/APKBUILD +++ b/main/libxi/APKBUILD @@ -1,7 +1,7 @@ # Maintainer: Natanael Copa <ncopa@alpinelinux.org> pkgname=libxi -pkgver=1.7.1 -pkgrel=1 +pkgver=1.7.2 +pkgrel=0 pkgdesc="X11 Input extension library" url="http://xorg.freedesktop.org" arch="all" @@ -14,10 +14,8 @@ makedepends=" pkgconfig xextproto xproto - libtool autoconf automake util-macros " -source="http://xorg.freedesktop.org/releases/individual/lib/libXi-$pkgver.tar.bz2 - CVE-2013-1984_CVE-2013-1995_CVE-2013-1998.patch" +source="http://xorg.freedesktop.org/releases/individual/lib/libXi-$pkgver.tar.bz2" _builddir="$srcdir"/libXi-$pkgver prepare() { @@ -27,8 +25,6 @@ prepare() { *.patch) msg $i; patch -p1 -i "$srcdir"/$i || return 1;; esac done - libtoolize --force && aclocal && autoheader && autoconf \ - && automake --add-missing } build () @@ -44,9 +40,6 @@ package() { rm "$pkgdir"/usr/lib/*.la || return 1 install -Dm644 COPYING "$pkgdir"/usr/share/licenses/$pkgname/COPYING } -md5sums="24d71afed1b86c60d4eb361628d7f47b libXi-1.7.1.tar.bz2 -75c05fe817230d99194a7593a4f1f8ae CVE-2013-1984_CVE-2013-1995_CVE-2013-1998.patch" -sha256sums="e92adb6b69c53c51e05c1e65db97e23751b935a693000fb0606c11b88c0066c5 libXi-1.7.1.tar.bz2 -5cc75b20c524ccaf49a0283e16b00a81019c25753eb1a16ae8880e6bc0688e60 CVE-2013-1984_CVE-2013-1995_CVE-2013-1998.patch" -sha512sums="f897bb9ca0bc98b4e5ad7ff770bbafabdc7880122ec50ecbafbcc0e0d4b299cf792484bed6cf87608b652baedd3928341b1bdf110d240a02ac1ac930bab05927 libXi-1.7.1.tar.bz2 -cf5486fe1daa93190f9fe66ff372bfa3b18a00d0ffff07f222ab1d89f30df786a99959d110c41ae8460257e2f5f4805e861cb8a2858836a6f7413303507bfa70 CVE-2013-1984_CVE-2013-1995_CVE-2013-1998.patch" +md5sums="f4df3532b1af1dcc905d804f55b30b4a libXi-1.7.2.tar.bz2" +sha256sums="df24781dc63645e2b561cd0b20bd8a0e7aff02e426a8d2a7641159004d4cb20e libXi-1.7.2.tar.bz2" +sha512sums="f419a30711220f51bc77ba4cd2759e565d4f8ba9960c3bcce3ec80ab84389fe220e4276887b125ec105810bd219698fb3a22ec4b9d91eab7235ed9a3ca6925c3 libXi-1.7.2.tar.bz2" diff --git a/main/libxi/CVE-2013-1984_CVE-2013-1995_CVE-2013-1998.patch b/main/libxi/CVE-2013-1984_CVE-2013-1995_CVE-2013-1998.patch deleted file mode 100644 index d1209b7fc..000000000 --- a/main/libxi/CVE-2013-1984_CVE-2013-1995_CVE-2013-1998.patch +++ /dev/null @@ -1,894 +0,0 @@ -diff --git a/configure.ac b/configure.ac -index 8dbca38..f5ef1e2 100644 ---- a/configure.ac -+++ b/configure.ac -@@ -31,6 +31,12 @@ PKG_CHECK_MODULES(XI, [xproto >= 7.0.13] [x11 >= 1.4.99.1] [xextproto >= 7.0.3] - # CFLAGS only for PointerBarrier typedef - PKG_CHECK_MODULES(XFIXES, [xfixes >= 5]) - -+# Check for _XEatDataWords function that may be patched into older Xlib releases -+SAVE_LIBS="$LIBS" -+LIBS="$XI_LIBS" -+AC_CHECK_FUNCS([_XEatDataWords]) -+LIBS="$SAVE_LIBS" -+ - # Check for xmlto and asciidoc for man page conversion - # (only needed by people building tarballs) - if test "$have_xmlto" = yes && test "$have_asciidoc" = yes; then -diff --git a/src/XExtInt.c b/src/XExtInt.c -index 507573b..d3c6b7c 100644 ---- a/src/XExtInt.c -+++ b/src/XExtInt.c -@@ -1521,6 +1521,7 @@ wireToDeviceEvent(xXIDeviceEvent *in, XGenericEventCookie* cookie) - out = next_block(&ptr_lib, sizeof(XIDeviceEvent)); - out->display = cookie->display; - out->type = in->type; -+ out->serial = in->sequenceNumber; - out->extension = in->extension; - out->evtype = in->evtype; - out->send_event = ((in->type & 0x80) != 0); -@@ -1793,6 +1794,7 @@ wireToDeviceChangedEvent(xXIDeviceChangedEvent *in, XGenericEventCookie *cookie) - cookie->data = out = malloc(sizeof(XIDeviceChangedEvent) + len); - - out->type = in->type; -+ out->serial = in->sequenceNumber; - out->display = cookie->display; - out->extension = in->extension; - out->evtype = in->evtype; -@@ -1825,6 +1827,7 @@ wireToHierarchyChangedEvent(xXIHierarchyEvent *in, XGenericEventCookie *cookie) - out->info = (XIHierarchyInfo*)&out[1]; - out->display = cookie->display; - out->type = in->type; -+ out->serial = in->sequenceNumber; - out->extension = in->extension; - out->evtype = in->evtype; - out->send_event = ((in->type & 0x80) != 0); -@@ -1865,6 +1868,7 @@ wireToRawEvent(XExtDisplayInfo *info, xXIRawEvent *in, XGenericEventCookie *cook - - out = next_block(&ptr, sizeof(XIRawEvent)); - out->type = in->type; -+ out->serial = in->sequenceNumber; - out->display = cookie->display; - out->extension = in->extension; - out->evtype = in->evtype; -@@ -1915,6 +1919,7 @@ wireToEnterLeave(xXIEnterEvent *in, XGenericEventCookie *cookie) - out->buttons.mask = (unsigned char*)&out[1]; - - out->type = in->type; -+ out->serial = in->sequenceNumber; - out->display = cookie->display; - out->extension = in->extension; - out->evtype = in->evtype; -@@ -1957,6 +1962,7 @@ wireToPropertyEvent(xXIPropertyEvent *in, XGenericEventCookie *cookie) - cookie->data = out; - - out->type = in->type; -+ out->serial = in->sequenceNumber; - out->extension = in->extension; - out->evtype = in->evtype; - out->send_event = ((in->type & 0x80) != 0); -@@ -1977,6 +1983,7 @@ wireToTouchOwnershipEvent(xXITouchOwnershipEvent *in, - cookie->data = out; - - out->type = in->type; -+ out->serial = in->sequenceNumber; - out->display = cookie->display; - out->extension = in->extension; - out->evtype = in->evtype; -@@ -2004,6 +2011,7 @@ wireToBarrierEvent(xXIBarrierEvent *in, XGenericEventCookie *cookie) - - out->display = cookie->display; - out->type = in->type; -+ out->serial = in->sequenceNumber; - out->extension = in->extension; - out->evtype = in->evtype; - out->send_event = ((in->type & 0x80) != 0); -diff --git a/src/XGMotion.c b/src/XGMotion.c -index 99b1c44..a4c75b6 100644 ---- a/src/XGMotion.c -+++ b/src/XGMotion.c -@@ -59,6 +59,7 @@ SOFTWARE. - #include <X11/extensions/XInput.h> - #include <X11/extensions/extutil.h> - #include "XIint.h" -+#include <limits.h> - - XDeviceTimeCoord * - XGetDeviceMotionEvents( -@@ -74,7 +75,7 @@ XGetDeviceMotionEvents( - xGetDeviceMotionEventsReply rep; - XDeviceTimeCoord *tc; - int *data, *bufp, *readp, *savp; -- long size, size2; -+ unsigned long size; - int i, j; - XExtDisplayInfo *info = XInput_find_display(dpy); - -@@ -104,15 +105,26 @@ XGetDeviceMotionEvents( - SyncHandle(); - return (NULL); - } -- size = rep.length << 2; -- size2 = rep.nEvents * (sizeof(XDeviceTimeCoord) + (rep.axes * sizeof(int))); -- savp = readp = (int *)Xmalloc(size); -- bufp = (int *)Xmalloc(size2); -+ if (rep.length < (INT_MAX >> 2)) { -+ size = rep.length << 2; -+ savp = readp = Xmalloc(size); -+ } else { -+ size = 0; -+ savp = readp = NULL; -+ } -+ /* rep.axes is a CARD8, so assume max number of axes for bounds check */ -+ if (rep.nEvents < -+ (INT_MAX / (sizeof(XDeviceTimeCoord) + (UCHAR_MAX * sizeof(int))))) { -+ size_t bsize = rep.nEvents * -+ (sizeof(XDeviceTimeCoord) + (rep.axes * sizeof(int))); -+ bufp = Xmalloc(bsize); -+ } else -+ bufp = NULL; - if (!bufp || !savp) { - Xfree(bufp); - Xfree(savp); - *nEvents = 0; -- _XEatData(dpy, (unsigned long)size); -+ _XEatDataWords(dpy, rep.length); - UnlockDisplay(dpy); - SyncHandle(); - return (NULL); -diff --git a/src/XGetBMap.c b/src/XGetBMap.c -index 211c9ca..002daba 100644 ---- a/src/XGetBMap.c -+++ b/src/XGetBMap.c -@@ -60,6 +60,7 @@ SOFTWARE. - #include <X11/extensions/XInput.h> - #include <X11/extensions/extutil.h> - #include "XIint.h" -+#include <limits.h> - - #ifdef MIN /* some systems define this in <sys/param.h> */ - #undef MIN -@@ -75,7 +76,6 @@ XGetDeviceButtonMapping( - { - int status = 0; - unsigned char mapping[256]; /* known fixed size */ -- long nbytes; - XExtDisplayInfo *info = XInput_find_display(dpy); - - register xGetDeviceButtonMappingReq *req; -@@ -92,13 +92,18 @@ XGetDeviceButtonMapping( - - status = _XReply(dpy, (xReply *) & rep, 0, xFalse); - if (status == 1) { -- nbytes = (long)rep.length << 2; -- _XRead(dpy, (char *)mapping, nbytes); -- -- /* don't return more data than the user asked for. */ -- if (rep.nElts) -- memcpy((char *)map, (char *)mapping, MIN((int)rep.nElts, nmap)); -- status = rep.nElts; -+ if (rep.length <= (sizeof(mapping) >> 2)) { -+ unsigned long nbytes = rep.length << 2; -+ _XRead(dpy, (char *)mapping, nbytes); -+ -+ /* don't return more data than the user asked for. */ -+ if (rep.nElts) -+ memcpy(map, mapping, MIN((int)rep.nElts, nmap)); -+ status = rep.nElts; -+ } else { -+ _XEatDataWords(dpy, rep.length); -+ status = 0; -+ } - } else - status = 0; - UnlockDisplay(dpy); -diff --git a/src/XGetDCtl.c b/src/XGetDCtl.c -index c66212d..51ed0ae 100644 ---- a/src/XGetDCtl.c -+++ b/src/XGetDCtl.c -@@ -61,6 +61,7 @@ SOFTWARE. - #include <X11/extensions/XInput.h> - #include <X11/extensions/extutil.h> - #include "XIint.h" -+#include <limits.h> - - XDeviceControl * - XGetDeviceControl( -@@ -68,8 +69,6 @@ XGetDeviceControl( - XDevice *dev, - int control) - { -- int size = 0; -- int nbytes, i; - XDeviceControl *Device = NULL; - XDeviceControl *Sav = NULL; - xDeviceState *d = NULL; -@@ -92,10 +91,14 @@ XGetDeviceControl( - goto out; - - if (rep.length > 0) { -- nbytes = (long)rep.length << 2; -- d = (xDeviceState *) Xmalloc((unsigned)nbytes); -+ unsigned long nbytes; -+ size_t size = 0; -+ if (rep.length < (INT_MAX >> 2)) { -+ nbytes = (unsigned long) rep.length << 2; -+ d = Xmalloc(nbytes); -+ } - if (!d) { -- _XEatData(dpy, (unsigned long)nbytes); -+ _XEatDataWords(dpy, rep.length); - goto out; - } - sav = d; -@@ -111,33 +114,46 @@ XGetDeviceControl( - case DEVICE_RESOLUTION: - { - xDeviceResolutionState *r; -+ size_t val_size; - - r = (xDeviceResolutionState *) d; -- size += sizeof(XDeviceResolutionState) + -- (3 * sizeof(int) * r->num_valuators); -+ if (r->num_valuators >= (INT_MAX / (3 * sizeof(int)))) -+ goto out; -+ val_size = 3 * sizeof(int) * r->num_valuators; -+ if ((sizeof(xDeviceResolutionState) + val_size) > nbytes) -+ goto out; -+ size += sizeof(XDeviceResolutionState) + val_size; - break; - } - case DEVICE_ABS_CALIB: - { -+ if (sizeof(xDeviceAbsCalibState) > nbytes) -+ goto out; - size += sizeof(XDeviceAbsCalibState); - break; - } - case DEVICE_ABS_AREA: - { -+ if (sizeof(xDeviceAbsAreaState) > nbytes) -+ goto out; - size += sizeof(XDeviceAbsAreaState); - break; - } - case DEVICE_CORE: - { -+ if (sizeof(xDeviceCoreState) > nbytes) -+ goto out; - size += sizeof(XDeviceCoreState); - break; - } - default: -+ if (d->length > nbytes) -+ goto out; - size += d->length; - break; - } - -- Device = (XDeviceControl *) Xmalloc((unsigned)size); -+ Device = Xmalloc(size); - if (!Device) - goto out; - -@@ -150,6 +166,7 @@ XGetDeviceControl( - int *iptr, *iptr2; - xDeviceResolutionState *r; - XDeviceResolutionState *R; -+ unsigned int i; - - r = (xDeviceResolutionState *) d; - R = (XDeviceResolutionState *) Device; -diff --git a/src/XGetDProp.c b/src/XGetDProp.c -index 5d44f91..3691122 100644 ---- a/src/XGetDProp.c -+++ b/src/XGetDProp.c -@@ -38,6 +38,7 @@ in this Software without prior written authorization from the author. - #include <X11/extensions/XInput.h> - #include <X11/extensions/extutil.h> - #include "XIint.h" -+#include <limits.h> - - int - XGetDeviceProperty(Display* dpy, XDevice* dev, -@@ -48,7 +49,8 @@ XGetDeviceProperty(Display* dpy, XDevice* dev, - { - xGetDevicePropertyReq *req; - xGetDevicePropertyReply rep; -- long nbytes, rbytes; -+ unsigned long nbytes, rbytes; -+ int ret = Success; - - XExtDisplayInfo *info = XInput_find_display(dpy); - -@@ -81,30 +83,43 @@ XGetDeviceProperty(Display* dpy, XDevice* dev, - * data, but this last byte is null terminated and convenient for - * returning string properties, so the client doesn't then have to - * recopy the string to make it null terminated. -+ * -+ * Maximum item limits are set to both prevent integer overflow when -+ * calculating the amount of memory to malloc, and to limit how much -+ * memory will be used if a server provides an insanely high count. - */ - switch (rep.format) { - case 8: -- nbytes = rep.nItems; -- rbytes = rep.nItems + 1; -- if (rbytes > 0 && -- (*prop = (unsigned char *) Xmalloc ((unsigned)rbytes))) -- _XReadPad (dpy, (char *) *prop, nbytes); -+ if (rep.nItems < INT_MAX) { -+ nbytes = rep.nItems; -+ rbytes = rep.nItems + 1; -+ if ((*prop = Xmalloc (rbytes))) -+ _XReadPad (dpy, (char *) *prop, nbytes); -+ else -+ ret = BadAlloc; -+ } - break; - - case 16: -- nbytes = rep.nItems << 1; -- rbytes = rep.nItems * sizeof (short) + 1; -- if (rbytes > 0 && -- (*prop = (unsigned char *) Xmalloc ((unsigned)rbytes))) -- _XRead16Pad (dpy, (short *) *prop, nbytes); -+ if (rep.nItems < (INT_MAX / sizeof (short))) { -+ nbytes = rep.nItems << 1; -+ rbytes = rep.nItems * sizeof (short) + 1; -+ if ((*prop = Xmalloc (rbytes))) -+ _XRead16Pad (dpy, (short *) *prop, nbytes); -+ else -+ ret = BadAlloc; -+ } - break; - - case 32: -- nbytes = rep.nItems << 2; -- rbytes = rep.nItems * sizeof (long) + 1; -- if (rbytes > 0 && -- (*prop = (unsigned char *) Xmalloc ((unsigned)rbytes))) -- _XRead32 (dpy, (long *) *prop, nbytes); -+ if (rep.nItems < (INT_MAX / sizeof (long))) { -+ nbytes = rep.nItems << 2; -+ rbytes = rep.nItems * sizeof (long) + 1; -+ if ((*prop = Xmalloc (rbytes))) -+ _XRead32 (dpy, (long *) *prop, nbytes); -+ else -+ ret = BadAlloc; -+ } - break; - - default: -@@ -112,17 +127,13 @@ XGetDeviceProperty(Display* dpy, XDevice* dev, - * This part of the code should never be reached. If it is, - * the server sent back a property with an invalid format. - */ -- nbytes = rep.length << 2; -- _XEatData(dpy, (unsigned long) nbytes); -- UnlockDisplay(dpy); -- SyncHandle(); -- return(BadImplementation); -+ ret = BadImplementation; - } - if (! *prop) { -- _XEatData(dpy, (unsigned long) nbytes); -- UnlockDisplay(dpy); -- SyncHandle(); -- return(BadAlloc); -+ _XEatDataWords(dpy, rep.length); -+ if (ret == Success) -+ ret = BadAlloc; -+ goto out; - } - (*prop)[rbytes - 1] = '\0'; - } -@@ -131,9 +142,10 @@ XGetDeviceProperty(Display* dpy, XDevice* dev, - *actual_format = rep.format; - *nitems = rep.nItems; - *bytes_after = rep.bytesAfter; -+ out: - UnlockDisplay (dpy); - SyncHandle (); - -- return Success; -+ return ret; - } - -diff --git a/src/XGetFCtl.c b/src/XGetFCtl.c -index 43afa00..bb50bf3 100644 ---- a/src/XGetFCtl.c -+++ b/src/XGetFCtl.c -@@ -61,6 +61,7 @@ SOFTWARE. - #include <X11/extensions/XInput.h> - #include <X11/extensions/extutil.h> - #include "XIint.h" -+#include <limits.h> - - XFeedbackState * - XGetFeedbackControl( -@@ -68,8 +69,6 @@ XGetFeedbackControl( - XDevice *dev, - int *num_feedbacks) - { -- int size = 0; -- int nbytes, i; - XFeedbackState *Feedback = NULL; - XFeedbackState *Sav = NULL; - xFeedbackState *f = NULL; -@@ -91,17 +90,28 @@ XGetFeedbackControl( - goto out; - - if (rep.length > 0) { -+ unsigned long nbytes; -+ size_t size = 0; -+ int i; -+ - *num_feedbacks = rep.num_feedbacks; -- nbytes = (long)rep.length << 2; -- f = (xFeedbackState *) Xmalloc((unsigned)nbytes); -+ -+ if (rep.length < (INT_MAX >> 2)) { -+ nbytes = rep.length << 2; -+ f = Xmalloc(nbytes); -+ } - if (!f) { -- _XEatData(dpy, (unsigned long)nbytes); -+ _XEatDataWords(dpy, rep.length); - goto out; - } - sav = f; - _XRead(dpy, (char *)f, nbytes); - - for (i = 0; i < *num_feedbacks; i++) { -+ if (f->length > nbytes) -+ goto out; -+ nbytes -= f->length; -+ - switch (f->class) { - case KbdFeedbackClass: - size += sizeof(XKbdFeedbackState); -@@ -116,6 +126,8 @@ XGetFeedbackControl( - { - xStringFeedbackState *strf = (xStringFeedbackState *) f; - -+ if (strf->num_syms_supported >= (INT_MAX / sizeof(KeySym))) -+ goto out; - size += sizeof(XStringFeedbackState) + - (strf->num_syms_supported * sizeof(KeySym)); - } -@@ -130,10 +142,12 @@ XGetFeedbackControl( - size += f->length; - break; - } -+ if (size > INT_MAX) -+ goto out; - f = (xFeedbackState *) ((char *)f + f->length); - } - -- Feedback = (XFeedbackState *) Xmalloc((unsigned)size); -+ Feedback = Xmalloc(size); - if (!Feedback) - goto out; - -diff --git a/src/XGetKMap.c b/src/XGetKMap.c -index 9431fbb..00dde06 100644 ---- a/src/XGetKMap.c -+++ b/src/XGetKMap.c -@@ -99,7 +99,7 @@ XGetDeviceKeyMapping(register Display * dpy, XDevice * dev, - if (mapping) - _XRead(dpy, (char *)mapping, nbytes); - else -- _XEatData(dpy, (unsigned long)nbytes); -+ _XEatDataWords(dpy, rep.length); - } - - UnlockDisplay(dpy); -diff --git a/src/XGetMMap.c b/src/XGetMMap.c -index 8a1cdb2..ce10c2d 100644 ---- a/src/XGetMMap.c -+++ b/src/XGetMMap.c -@@ -92,7 +92,7 @@ XGetDeviceModifierMapping( - if (res->modifiermap) - _XReadPad(dpy, (char *)res->modifiermap, nbytes); - else -- _XEatData(dpy, (unsigned long)nbytes); -+ _XEatDataWords(dpy, rep.length); - res->max_keypermod = rep.numKeyPerModifier; - } - -diff --git a/src/XGetProp.c b/src/XGetProp.c -index c5d088b..b49328c 100644 ---- a/src/XGetProp.c -+++ b/src/XGetProp.c -@@ -60,6 +60,7 @@ SOFTWARE. - #include <X11/extensions/XInput.h> - #include <X11/extensions/extutil.h> - #include "XIint.h" -+#include <limits.h> - - XEventClass * - XGetDeviceDontPropagateList( -@@ -68,7 +69,6 @@ XGetDeviceDontPropagateList( - int *count) - { - XEventClass *list = NULL; -- int rlen; - xGetDeviceDontPropagateListReq *req; - xGetDeviceDontPropagateListReply rep; - XExtDisplayInfo *info = XInput_find_display(dpy); -@@ -89,11 +89,11 @@ XGetDeviceDontPropagateList( - } - *count = rep.count; - -- if (*count) { -- rlen = rep.length << 2; -- list = (XEventClass *) Xmalloc(rep.length * sizeof(XEventClass)); -+ if (rep.length != 0) { -+ if ((rep.count != 0) && (rep.length < (INT_MAX / sizeof(XEventClass)))) -+ list = Xmalloc(rep.length * sizeof(XEventClass)); - if (list) { -- int i; -+ unsigned int i; - CARD32 ec; - - /* read and assign each XEventClass separately because -@@ -105,7 +105,7 @@ XGetDeviceDontPropagateList( - list[i] = (XEventClass) ec; - } - } else -- _XEatData(dpy, (unsigned long)rlen); -+ _XEatDataWords(dpy, rep.length); - } - - UnlockDisplay(dpy); -diff --git a/src/XGtSelect.c b/src/XGtSelect.c -index f890db7..5c0f812 100644 ---- a/src/XGtSelect.c -+++ b/src/XGtSelect.c -@@ -104,7 +104,7 @@ XGetSelectedExtensionEvents( - (XEventClass *) Xmalloc(*this_client_count * - sizeof(XEventClass)); - if (!*this_client_list) { -- _XEatData(dpy, (unsigned long)tlen + alen); -+ _XEatDataWords(dpy, rep.length); - UnlockDisplay(dpy); - SyncHandle(); - return (Success); -diff --git a/src/XIPassiveGrab.c b/src/XIPassiveGrab.c -index ac17c01..53b4084 100644 ---- a/src/XIPassiveGrab.c -+++ b/src/XIPassiveGrab.c -@@ -88,7 +88,7 @@ _XIPassiveGrabDevice(Display* dpy, int deviceid, int grabtype, int detail, - return -1; - _XRead(dpy, (char*)failed_mods, reply.num_modifiers * sizeof(xXIGrabModifierInfo)); - -- for (i = 0; i < reply.num_modifiers; i++) -+ for (i = 0; i < reply.num_modifiers && i < num_modifiers; i++) - { - modifiers_inout[i].status = failed_mods[i].status; - modifiers_inout[i].modifiers = failed_mods[i].modifiers; -diff --git a/src/XIProperties.c b/src/XIProperties.c -index 83a7a68..32436d1 100644 ---- a/src/XIProperties.c -+++ b/src/XIProperties.c -@@ -38,6 +38,7 @@ - #include <X11/extensions/XInput2.h> - #include <X11/extensions/extutil.h> - #include "XIint.h" -+#include <limits.h> - - Atom* - XIListProperties(Display* dpy, int deviceid, int *num_props_return) -@@ -64,7 +65,7 @@ XIListProperties(Display* dpy, int deviceid, int *num_props_return) - props = (Atom*)Xmalloc(rep.num_properties * sizeof(Atom)); - if (!props) - { -- _XEatData(dpy, rep.num_properties << 2); -+ _XEatDataWords(dpy, rep.length); - goto cleanup; - } - -@@ -170,7 +171,7 @@ XIGetProperty(Display* dpy, int deviceid, Atom property, long offset, - { - xXIGetPropertyReq *req; - xXIGetPropertyReply rep; -- long nbytes, rbytes; -+ unsigned long nbytes, rbytes; - - XExtDisplayInfo *info = XInput_find_display(dpy); - -@@ -203,8 +204,7 @@ XIGetProperty(Display* dpy, int deviceid, Atom property, long offset, - * This part of the code should never be reached. If it is, - * the server sent back a property with an invalid format. - */ -- nbytes = rep.length << 2; -- _XEatData(dpy, nbytes); -+ _XEatDataWords(dpy, rep.length); - UnlockDisplay(dpy); - SyncHandle(); - return(BadImplementation); -@@ -217,12 +217,14 @@ XIGetProperty(Display* dpy, int deviceid, Atom property, long offset, - * recopy the string to make it null terminated. - */ - -- nbytes = rep.num_items * rep.format/8; -- rbytes = nbytes + 1; -- *data = Xmalloc(rbytes); -+ if (rep.num_items < (INT_MAX / (rep.format/8))) { -+ nbytes = rep.num_items * rep.format/8; -+ rbytes = nbytes + 1; -+ *data = Xmalloc(rbytes); -+ } - - if (!(*data)) { -- _XEatData(dpy, nbytes); -+ _XEatDataWords(dpy, rep.length); - UnlockDisplay(dpy); - SyncHandle(); - return(BadAlloc); -diff --git a/src/XISelEv.c b/src/XISelEv.c -index fa7eb54..0471bef 100644 ---- a/src/XISelEv.c -+++ b/src/XISelEv.c -@@ -42,6 +42,7 @@ in this Software without prior written authorization from the author. - #include <X11/extensions/ge.h> - #include <X11/extensions/geproto.h> - #include "XIint.h" -+#include <limits.h> - - int - XISelectEvents(Display* dpy, Window win, XIEventMask* masks, int num_masks) -@@ -101,13 +102,14 @@ out: - XIEventMask* - XIGetSelectedEvents(Display* dpy, Window win, int *num_masks_return) - { -- int i, len = 0; -+ unsigned int i, len = 0; - unsigned char *mask; - XIEventMask *mask_out = NULL; - xXIEventMask *mask_in = NULL, *mi; - xXIGetSelectedEventsReq *req; - xXIGetSelectedEventsReply reply; - XExtDisplayInfo *info = XInput_find_display(dpy); -+ size_t rbytes; - - *num_masks_return = -1; - LockDisplay(dpy); -@@ -129,21 +131,38 @@ XIGetSelectedEvents(Display* dpy, Window win, int *num_masks_return) - goto out; - } - -- mask_in = Xmalloc(reply.length * 4); -- if (!mask_in) -+ if (reply.length < (INT_MAX >> 2)) { -+ rbytes = (unsigned long) reply.length << 2; -+ mask_in = Xmalloc(rbytes); -+ } -+ if (!mask_in) { -+ _XEatDataWords(dpy, reply.length); - goto out; -+ } - -- _XRead(dpy, (char*)mask_in, reply.length * 4); -+ _XRead(dpy, (char*)mask_in, rbytes); - -- /* Memory layout of the XIEventMask for a 3 mask reply: -- * [struct a][struct b][struct c][masks a][masks b][masks c] -+ /* -+ * This function takes interleaved xXIEventMask structs & masks off -+ * the wire, such as this 3 mask reply: -+ * [struct a][masks a][struct b][masks b][struct c][masks c] -+ * And generates a memory buffer to be returned to callers in which -+ * they are not interleaved, so that callers can treat the returned -+ * pointer as a simple array of XIEventMask structs, such as: -+ * [struct a][struct b][struct c][masks a][masks b][masks c] - */ - len = reply.num_masks * sizeof(XIEventMask); - - for (i = 0, mi = mask_in; i < reply.num_masks; i++) - { -- len += mi->mask_len * 4; -- mi = (xXIEventMask*)((char*)mi + mi->mask_len * 4); -+ unsigned int mask_bytes = mi->mask_len * 4; -+ len += mask_bytes; -+ if (len > INT_MAX) -+ goto out; -+ if ((sizeof(xXIEventMask) + mask_bytes) > rbytes) -+ goto out; -+ rbytes -= (sizeof(xXIEventMask) + mask_bytes); -+ mi = (xXIEventMask*)((char*)mi + mask_bytes); - mi++; - } - -diff --git a/src/XIint.h b/src/XIint.h -index 571bb23..3ddc3c5 100644 ---- a/src/XIint.h -+++ b/src/XIint.h -@@ -83,4 +83,18 @@ next_block(void **ptr, int size) { - return ret; - } - -+#ifndef HAVE__XEATDATAWORDS -+#include <X11/Xmd.h> /* for LONG64 on 64-bit platforms */ -+#include <limits.h> -+ -+static inline void _XEatDataWords(Display *dpy, unsigned long n) -+{ -+# ifndef LONG64 -+ if (n >= (ULONG_MAX >> 2)) -+ _XIOError(dpy); -+# endif -+ _XEatData (dpy, n << 2); -+} -+#endif -+ - #endif -diff --git a/src/XListDProp.c b/src/XListDProp.c -index 8667350..bde6cb5 100644 ---- a/src/XListDProp.c -+++ b/src/XListDProp.c -@@ -65,7 +65,7 @@ XListDeviceProperties(Display* dpy, XDevice* dev, int *nprops_return) - props = (Atom*)Xmalloc(rep.nAtoms * sizeof(Atom)); - if (!props) - { -- _XEatData(dpy, rep.nAtoms << 2); -+ _XEatDataWords(dpy, rep.length); - goto cleanup; - } - -diff --git a/src/XListDev.c b/src/XListDev.c -index bd6e70a..b85ff3c 100644 ---- a/src/XListDev.c -+++ b/src/XListDev.c -@@ -60,6 +60,7 @@ SOFTWARE. - #include <X11/extensions/XInput.h> - #include <X11/extensions/extutil.h> - #include "XIint.h" -+#include <limits.h> - - /* Calculate length field to a multiples of sizeof(XID). XIDs are typedefs - * to ulong and thus may be 8 bytes on some platforms. This can trigger a -@@ -72,7 +73,7 @@ static int pad_to_xid(int base_size) - return ((base_size + padsize - 1)/padsize) * padsize; - } - --static int -+static size_t - SizeClassInfo(xAnyClassPtr *any, int num_classes) - { - int size = 0; -@@ -169,7 +170,7 @@ XListInputDevices( - register Display *dpy, - int *ndevices) - { -- int size; -+ size_t size; - xListInputDevicesReq *req; - xListInputDevicesReply rep; - xDeviceInfo *list, *slist = NULL; -@@ -177,9 +178,9 @@ XListInputDevices( - XDeviceInfo *clist = NULL; - xAnyClassPtr any, sav_any; - XAnyClassPtr Any; -- char *nptr, *Nptr; -+ unsigned char *nptr, *Nptr; - int i; -- long rlen; -+ unsigned long rlen; - XExtDisplayInfo *info = XInput_find_display(dpy); - - LockDisplay(dpy); -@@ -198,11 +199,12 @@ XListInputDevices( - - if ((*ndevices = rep.ndevices)) { /* at least 1 input device */ - size = *ndevices * sizeof(XDeviceInfo); -- rlen = rep.length << 2; /* multiply length by 4 */ -- list = (xDeviceInfo *) Xmalloc(rlen); -- slist = list; -+ if (rep.length < (INT_MAX >> 2)) { -+ rlen = rep.length << 2; /* multiply length by 4 */ -+ slist = list = Xmalloc(rlen); -+ } - if (!slist) { -- _XEatData(dpy, (unsigned long)rlen); -+ _XEatDataWords(dpy, rep.length); - UnlockDisplay(dpy); - SyncHandle(); - return (XDeviceInfo *) NULL; -@@ -215,9 +217,12 @@ XListInputDevices( - size += SizeClassInfo(&any, (int)list->num_classes); - } - -- for (i = 0, nptr = (char *)any; i < *ndevices; i++) { -+ Nptr = ((unsigned char *)list) + rlen + 1; -+ for (i = 0, nptr = (unsigned char *)any; i < *ndevices; i++) { - size += *nptr + 1; - nptr += (*nptr + 1); -+ if (nptr > Nptr) -+ goto out; - } - - clist = (XDeviceInfoPtr) Xmalloc(size); -@@ -243,8 +248,8 @@ XListInputDevices( - } - - clist = sclist; -- nptr = (char *)any; -- Nptr = (char *)Any; -+ nptr = (unsigned char *)any; -+ Nptr = (unsigned char *)Any; - for (i = 0; i < *ndevices; i++, clist++) { - clist->name = (char *)Nptr; - memcpy(Nptr, nptr + 1, *nptr); -@@ -254,6 +259,7 @@ XListInputDevices( - } - } - -+ out: - XFree((char *)slist); - UnlockDisplay(dpy); - SyncHandle(); -diff --git a/src/XOpenDev.c b/src/XOpenDev.c -index 74f18ac..e784f8b 100644 ---- a/src/XOpenDev.c -+++ b/src/XOpenDev.c -@@ -101,7 +101,7 @@ XOpenDevice( - if (rlen - dlen > 0) - _XEatData(dpy, (unsigned long)rlen - dlen); - } else -- _XEatData(dpy, (unsigned long)rlen); -+ _XEatDataWords(dpy, rep.length); - - UnlockDisplay(dpy); - SyncHandle(); -diff --git a/src/XQueryDv.c b/src/XQueryDv.c -index 24d4e4e..3836777 100644 ---- a/src/XQueryDv.c -+++ b/src/XQueryDv.c -@@ -59,6 +59,7 @@ SOFTWARE. - #include <X11/extensions/XInput.h> - #include <X11/extensions/extutil.h> - #include "XIint.h" -+#include <limits.h> - - XDeviceState * - XQueryDeviceState( -@@ -66,8 +67,8 @@ XQueryDeviceState( - XDevice *dev) - { - int i, j; -- int rlen; -- int size = 0; -+ unsigned long rlen; -+ size_t size = 0; - xQueryDeviceStateReq *req; - xQueryDeviceStateReply rep; - XDeviceState *state = NULL; -@@ -87,16 +88,22 @@ XQueryDeviceState( - if (!_XReply(dpy, (xReply *) & rep, 0, xFalse)) - goto out; - -- rlen = rep.length << 2; -- if (rlen > 0) { -- data = Xmalloc(rlen); -+ if (rep.length > 0) { -+ if (rep.length < (INT_MAX >> 2)) { -+ rlen = (unsigned long) rep.length << 2; -+ data = Xmalloc(rlen); -+ } - if (!data) { -- _XEatData(dpy, (unsigned long)rlen); -+ _XEatDataWords(dpy, rep.length); - goto out; - } - _XRead(dpy, data, rlen); - - for (i = 0, any = (XInputClass *) data; i < (int)rep.num_classes; i++) { -+ if (any->length > rlen) -+ goto out; -+ rlen -= any->length; -+ - switch (any->class) { - case KeyClass: - size += sizeof(XKeyState); |