gnu: libx11: Update to 1.6.4.
* gnu/packages/xorg.scm (libx11): Update to 1.6.4. [replacement]: Remove field. (libx11/fixed): Remove variable. * gnu/packages/patches/libx11-CVE-2016-7942.patch, gnu/packages/patches/libx11-CVE-2016-7943.patch: Remove files. * gnu/local.mk (dist_patch_DATA): Remove them.
This commit is contained in:
Leo Famulari
parent
b19c7989b7
commit
4dd841c1dc
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@ -668,8 +668,6 @@ dist_patch_DATA = \
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%D%/packages/patches/libwmf-CVE-2015-0848+CVE-2015-4588.patch \
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%D%/packages/patches/libwmf-CVE-2015-4695.patch \
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%D%/packages/patches/libwmf-CVE-2015-4696.patch \
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%D%/packages/patches/libx11-CVE-2016-7942.patch \
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%D%/packages/patches/libx11-CVE-2016-7943.patch \
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%D%/packages/patches/libxfixes-CVE-2016-7944.patch \
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%D%/packages/patches/libxi-CVE-2016-7945-CVE-2016-7946.patch \
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%D%/packages/patches/libxrandr-CVE-2016-7947-CVE-2016-7948.patch \
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@ -1,76 +0,0 @@
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Fix CVE-2016-7942:
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https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-7942
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Patch copied from upstream source repository:
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https://cgit.freedesktop.org/xorg/lib/libX11/commit/?id=8ea762f94f4c942d898fdeb590a1630c83235c17
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From 8ea762f94f4c942d898fdeb590a1630c83235c17 Mon Sep 17 00:00:00 2001
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From: Tobias Stoeckmann <tobias@stoeckmann.org>
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Date: Sun, 25 Sep 2016 21:25:25 +0200
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Subject: [PATCH] Validation of server responses in XGetImage()
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Check if enough bytes were received for specified image type and
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geometry. Otherwise GetPixel and other functions could trigger an
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out of boundary read later on.
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Signed-off-by: Tobias Stoeckmann <tobias@stoeckmann.org>
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Reviewed-by: Matthieu Herrb <matthieu@herrb.eu>
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---
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src/GetImage.c | 29 ++++++++++++++++++++---------
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1 file changed, 20 insertions(+), 9 deletions(-)
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diff --git a/src/GetImage.c b/src/GetImage.c
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index c461abc..ff32d58 100644
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--- a/src/GetImage.c
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+++ b/src/GetImage.c
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@@ -59,6 +59,7 @@ XImage *XGetImage (
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char *data;
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unsigned long nbytes;
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XImage *image;
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+ int planes;
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LockDisplay(dpy);
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GetReq (GetImage, req);
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/*
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@@ -91,18 +92,28 @@ XImage *XGetImage (
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return (XImage *) NULL;
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}
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_XReadPad (dpy, data, nbytes);
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- if (format == XYPixmap)
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- image = XCreateImage(dpy, _XVIDtoVisual(dpy, rep.visual),
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- Ones (plane_mask &
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- (((unsigned long)0xFFFFFFFF) >> (32 - rep.depth))),
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- format, 0, data, width, height, dpy->bitmap_pad, 0);
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- else /* format == ZPixmap */
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- image = XCreateImage (dpy, _XVIDtoVisual(dpy, rep.visual),
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- rep.depth, ZPixmap, 0, data, width, height,
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- _XGetScanlinePad(dpy, (int) rep.depth), 0);
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+ if (format == XYPixmap) {
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+ image = XCreateImage(dpy, _XVIDtoVisual(dpy, rep.visual),
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+ Ones (plane_mask &
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+ (((unsigned long)0xFFFFFFFF) >> (32 - rep.depth))),
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+ format, 0, data, width, height, dpy->bitmap_pad, 0);
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+ planes = image->depth;
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+ } else { /* format == ZPixmap */
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+ image = XCreateImage (dpy, _XVIDtoVisual(dpy, rep.visual),
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+ rep.depth, ZPixmap, 0, data, width, height,
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+ _XGetScanlinePad(dpy, (int) rep.depth), 0);
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+ planes = 1;
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+ }
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if (!image)
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Xfree(data);
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+ if (planes < 1 || image->height < 1 || image->bytes_per_line < 1 ||
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+ INT_MAX / image->height <= image->bytes_per_line ||
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+ INT_MAX / planes <= image->height * image->bytes_per_line ||
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+ nbytes < planes * image->height * image->bytes_per_line) {
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+ XDestroyImage(image);
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+ image = NULL;
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+ }
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UnlockDisplay(dpy);
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SyncHandle();
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return (image);
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--
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2.10.1
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@ -1,113 +0,0 @@
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Fix CVE-2016-7943:
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https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-7943.
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Patch copied from upstream source repository:
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https://cgit.freedesktop.org/xorg/lib/libX11/commit/?id=8c29f1607a31dac0911e45a0dd3d74173822b3c9
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From 8c29f1607a31dac0911e45a0dd3d74173822b3c9 Mon Sep 17 00:00:00 2001
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From: Tobias Stoeckmann <tobias@stoeckmann.org>
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Date: Sun, 25 Sep 2016 21:22:57 +0200
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Subject: [PATCH] The validation of server responses avoids out of boundary
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accesses.
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v2: FontNames.c return a NULL list whenever a single
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length field from the server is incohent.
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Signed-off-by: Tobias Stoeckmann <tobias@stoeckmann.org>
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Reviewed-by: Matthieu Herrb <matthieu@herrb.eu>
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---
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src/FontNames.c | 23 +++++++++++++++++------
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src/ListExt.c | 12 ++++++++----
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src/ModMap.c | 3 ++-
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3 files changed, 27 insertions(+), 11 deletions(-)
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diff --git a/src/FontNames.c b/src/FontNames.c
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index 21dcafe..e55f338 100644
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--- a/src/FontNames.c
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+++ b/src/FontNames.c
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@@ -66,7 +66,7 @@ int *actualCount) /* RETURN */
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if (rep.nFonts) {
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flist = Xmalloc (rep.nFonts * sizeof(char *));
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- if (rep.length < (INT_MAX >> 2)) {
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+ if (rep.length > 0 && rep.length < (INT_MAX >> 2)) {
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rlen = rep.length << 2;
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ch = Xmalloc(rlen + 1);
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/* +1 to leave room for last null-terminator */
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@@ -93,11 +93,22 @@ int *actualCount) /* RETURN */
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if (ch + length < chend) {
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flist[i] = ch + 1; /* skip over length */
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ch += length + 1; /* find next length ... */
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- length = *(unsigned char *)ch;
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- *ch = '\0'; /* and replace with null-termination */
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- count++;
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- } else
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- flist[i] = NULL;
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+ if (ch <= chend) {
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+ length = *(unsigned char *)ch;
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+ *ch = '\0'; /* and replace with null-termination */
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+ count++;
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+ } else {
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+ Xfree(flist);
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+ flist = NULL;
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+ count = 0;
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+ break;
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+ }
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+ } else {
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+ Xfree(flist);
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+ flist = NULL;
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+ count = 0;
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+ break;
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+ }
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}
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}
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*actualCount = count;
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diff --git a/src/ListExt.c b/src/ListExt.c
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index be6b989..0516e45 100644
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--- a/src/ListExt.c
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+++ b/src/ListExt.c
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@@ -55,7 +55,7 @@ char **XListExtensions(
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if (rep.nExtensions) {
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list = Xmalloc (rep.nExtensions * sizeof (char *));
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- if (rep.length < (INT_MAX >> 2)) {
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+ if (rep.length > 0 && rep.length < (INT_MAX >> 2)) {
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rlen = rep.length << 2;
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ch = Xmalloc (rlen + 1);
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/* +1 to leave room for last null-terminator */
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@@ -80,9 +80,13 @@ char **XListExtensions(
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if (ch + length < chend) {
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list[i] = ch+1; /* skip over length */
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ch += length + 1; /* find next length ... */
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- length = *ch;
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- *ch = '\0'; /* and replace with null-termination */
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- count++;
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+ if (ch <= chend) {
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+ length = *ch;
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+ *ch = '\0'; /* and replace with null-termination */
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+ count++;
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+ } else {
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+ list[i] = NULL;
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+ }
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} else
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list[i] = NULL;
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}
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diff --git a/src/ModMap.c b/src/ModMap.c
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index a809aa2..49a5d08 100644
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--- a/src/ModMap.c
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+++ b/src/ModMap.c
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@@ -42,7 +42,8 @@ XGetModifierMapping(register Display *dpy)
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GetEmptyReq(GetModifierMapping, req);
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(void) _XReply (dpy, (xReply *)&rep, 0, xFalse);
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- if (rep.length < (INT_MAX >> 2)) {
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+ if (rep.length < (INT_MAX >> 2) &&
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+ (rep.length >> 1) == rep.numKeyPerModifier) {
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nbytes = (unsigned long)rep.length << 2;
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res = Xmalloc(sizeof (XModifierKeymap));
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if (res)
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--
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2.10.1
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@ -5252,8 +5252,7 @@ draggable titlebars and borders.")
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(define-public libx11
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(package
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(name "libx11")
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(replacement libx11/fixed)
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(version "1.6.3")
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(version "1.6.4")
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(source
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(origin
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(method url-fetch)
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@ -5263,7 +5262,7 @@ draggable titlebars and borders.")
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".tar.bz2"))
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(sha256
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(base32
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"04c1vj53xq2xgyxx5vhln3wm2d76hh1n95fvs3myhligkz1sfcfg"))))
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"0hg46i6h92pmb7xp1cis2j43zq3fkdz89p0yv35w4vm17az4iixp"))))
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(build-system gnu-build-system)
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(outputs '("out"
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"doc")) ;8 MiB of man pages + XML
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@ -5285,15 +5284,6 @@ draggable titlebars and borders.")
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(description "Xorg Core X11 protocol client library.")
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(license license:x11)))
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(define libx11/fixed
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(package
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(inherit libx11)
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(source (origin
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(inherit (package-source libx11))
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(patches (search-patches
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"libx11-CVE-2016-7942.patch"
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"libx11-CVE-2016-7943.patch"))))))
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;; packages of height 5 in the propagated-inputs tree
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(define-public libxcursor
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