gnu: libxi: Update to 1.7.7.

* gnu/packages/xorg.scm (libxi): Update to 1.7.7.
[replacement]: Remove field.
(libxi/fixed): Remove variable.
* gnu/packages/patches/libxi-CVE-2016-7945-CVE-2016-7946.patch: Delete file.
* gnu/local.mk (dist_patch_DATA): Remove it.

3 files changed, 2 insertions, 432 deletions

diff --git a/gnu/local.mk b/gnu/local.mk
index 915c5e7e20..116c9ab589 100644
--- a/gnu/local.mk
+++ b/gnu/local.mk
@@ -668,7 +668,6 @@ dist_patch_DATA =						\
   %D%/packages/patches/libwmf-CVE-2015-0848+CVE-2015-4588.patch	\
   %D%/packages/patches/libwmf-CVE-2015-4695.patch		\
   %D%/packages/patches/libwmf-CVE-2015-4696.patch		\
-  %D%/packages/patches/libxi-CVE-2016-7945-CVE-2016-7946.patch	\
   %D%/packages/patches/libxrandr-CVE-2016-7947-CVE-2016-7948.patch	\
   %D%/packages/patches/libxrender-CVE-2016-7949.patch		\
   %D%/packages/patches/libxrender-CVE-2016-7950.patch		\
diff --git a/gnu/packages/patches/libxi-CVE-2016-7945-CVE-2016-7946.patch b/gnu/packages/patches/libxi-CVE-2016-7945-CVE-2016-7946.patch
deleted file mode 100644
index ca899e34c0..0000000000
--- a/gnu/packages/patches/libxi-CVE-2016-7945-CVE-2016-7946.patch
+++ /dev/null
@@ -1,420 +0,0 @@
-Fix CVE-2016-7945:
-
-https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-7945
-
-Patch copied from upstream source repository:
-
-https://cgit.freedesktop.org/xorg/lib/libXi/commit/?id=19a9cd607de73947fcfb104682f203ffe4e1f4e5
-
-From 19a9cd607de73947fcfb104682f203ffe4e1f4e5 Mon Sep 17 00:00:00 2001
-From: Tobias Stoeckmann <tobias@stoeckmann.org>
-Date: Sun, 25 Sep 2016 22:31:34 +0200
-Subject: [PATCH] Properly validate server responses.
-
-By validating length fields from server responses, out of boundary
-accesses and endless loops can be mitigated.
-
-Signed-off-by: Tobias Stoeckmann <tobias@stoeckmann.org>
-Reviewed-by: Matthieu Herrb <matthieu@herrb.eu>
----
- src/XGMotion.c      |  3 ++-
- src/XGetBMap.c      |  3 ++-
- src/XGetDCtl.c      |  6 ++++--
- src/XGetFCtl.c      |  7 ++++++-
- src/XGetKMap.c      | 14 +++++++++++---
- src/XGetMMap.c      | 11 +++++++++--
- src/XIQueryDevice.c | 36 ++++++++++++++++++++++++++++++++++--
- src/XListDev.c      | 21 +++++++++++++++------
- src/XOpenDev.c      | 13 ++++++++++---
- src/XQueryDv.c      |  8 ++++++--
- 10 files changed, 99 insertions(+), 23 deletions(-)
-
-diff --git a/src/XGMotion.c b/src/XGMotion.c
-index 7785843..9433e29 100644
---- a/src/XGMotion.c
-+++ b/src/XGMotion.c
-@@ -114,7 +114,8 @@ XGetDeviceMotionEvents(
-     }
-     /* 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))))) {
-+	(INT_MAX / (sizeof(XDeviceTimeCoord) + (UCHAR_MAX * sizeof(int)))) &&
-+	rep.nEvents * (rep.axes + 1) <= rep.length) {
- 	size_t bsize = rep.nEvents *
- 	    (sizeof(XDeviceTimeCoord) + (rep.axes * sizeof(int)));
- 	bufp = Xmalloc(bsize);
-diff --git a/src/XGetBMap.c b/src/XGetBMap.c
-index 002daba..13bb8c6 100644
---- a/src/XGetBMap.c
-+++ b/src/XGetBMap.c
-@@ -92,7 +92,8 @@ XGetDeviceButtonMapping(
- 
-     status = _XReply(dpy, (xReply *) & rep, 0, xFalse);
-     if (status == 1) {
--	if (rep.length <= (sizeof(mapping) >> 2)) {
-+	if (rep.length <= (sizeof(mapping) >> 2) &&
-+	    rep.nElts <= (rep.length << 2)) {
- 	    unsigned long nbytes = rep.length << 2;
- 	    _XRead(dpy, (char *)mapping, nbytes);
- 
-diff --git a/src/XGetDCtl.c b/src/XGetDCtl.c
-index c5d3b53..7f6b396 100644
---- a/src/XGetDCtl.c
-+++ b/src/XGetDCtl.c
-@@ -93,7 +93,8 @@ XGetDeviceControl(
-     if (rep.length > 0) {
- 	unsigned long nbytes;
- 	size_t size = 0;
--	if (rep.length < (INT_MAX >> 2)) {
-+	if (rep.length < (INT_MAX >> 2) &&
-+	    (rep.length << 2) >= sizeof(xDeviceState)) {
- 	    nbytes = (unsigned long) rep.length << 2;
- 	    d = Xmalloc(nbytes);
- 	}
-@@ -117,7 +118,8 @@ XGetDeviceControl(
- 	    size_t val_size;
- 
- 	    r = (xDeviceResolutionState *) d;
--	    if (r->num_valuators >= (INT_MAX / (3 * sizeof(int))))
-+	    if (sizeof(xDeviceResolutionState) > nbytes ||
-+		r->num_valuators >= (INT_MAX / (3 * sizeof(int))))
- 		goto out;
- 	    val_size = 3 * sizeof(int) * r->num_valuators;
- 	    if ((sizeof(xDeviceResolutionState) + val_size) > nbytes)
-diff --git a/src/XGetFCtl.c b/src/XGetFCtl.c
-index 7fd6d0e..82dcc64 100644
---- a/src/XGetFCtl.c
-+++ b/src/XGetFCtl.c
-@@ -73,6 +73,7 @@ XGetFeedbackControl(
-     XFeedbackState *Sav = NULL;
-     xFeedbackState *f = NULL;
-     xFeedbackState *sav = NULL;
-+    char *end = NULL;
-     xGetFeedbackControlReq *req;
-     xGetFeedbackControlReply rep;
-     XExtDisplayInfo *info = XInput_find_display(dpy);
-@@ -105,10 +106,12 @@ XGetFeedbackControl(
- 	    goto out;
- 	}
- 	sav = f;
-+	end = (char *)f + nbytes;
- 	_XRead(dpy, (char *)f, nbytes);
- 
- 	for (i = 0; i < *num_feedbacks; i++) {
--	    if (f->length > nbytes)
-+	    if ((char *)f + sizeof(*f) > end ||
-+	        f->length == 0 || f->length > nbytes)
- 		goto out;
- 	    nbytes -= f->length;
- 
-@@ -125,6 +128,8 @@ XGetFeedbackControl(
- 	    case StringFeedbackClass:
- 	    {
- 		xStringFeedbackState *strf = (xStringFeedbackState *) f;
-+		if ((char *)f + sizeof(*strf) > end)
-+		    goto out;
- 		size += sizeof(XStringFeedbackState) +
- 		    (strf->num_syms_supported * sizeof(KeySym));
- 	    }
-diff --git a/src/XGetKMap.c b/src/XGetKMap.c
-index 0540ce4..008a72b 100644
---- a/src/XGetKMap.c
-+++ b/src/XGetKMap.c
-@@ -54,6 +54,7 @@ SOFTWARE.
- #include <config.h>
- #endif
- 
-+#include <limits.h>
- #include <X11/extensions/XI.h>
- #include <X11/extensions/XIproto.h>
- #include <X11/Xlibint.h>
-@@ -93,9 +94,16 @@ XGetDeviceKeyMapping(register Display * dpy, XDevice * dev,
- 	return (KeySym *) NULL;
-     }
-     if (rep.length > 0) {
--	*syms_per_code = rep.keySymsPerKeyCode;
--	nbytes = (long)rep.length << 2;
--	mapping = (KeySym *) Xmalloc((unsigned)nbytes);
-+	if (rep.length < INT_MAX >> 2 &&
-+	    rep.length == rep.keySymsPerKeyCode * keycount) {
-+	    *syms_per_code = rep.keySymsPerKeyCode;
-+	    nbytes = (long)rep.length << 2;
-+	    mapping = (KeySym *) Xmalloc((unsigned)nbytes);
-+	} else {
-+	    *syms_per_code = 0;
-+	    nbytes = 0;
-+	    mapping = NULL;
-+	}
- 	if (mapping)
- 	    _XRead(dpy, (char *)mapping, nbytes);
- 	else
-diff --git a/src/XGetMMap.c b/src/XGetMMap.c
-index 246698c..33c114f 100644
---- a/src/XGetMMap.c
-+++ b/src/XGetMMap.c
-@@ -53,6 +53,7 @@ SOFTWARE.
- #include <config.h>
- #endif
- 
-+#include <limits.h>
- #include <X11/extensions/XI.h>
- #include <X11/extensions/XIproto.h>
- #include <X11/Xlibint.h>
-@@ -85,8 +86,14 @@ XGetDeviceModifierMapping(
- 	SyncHandle();
- 	return (XModifierKeymap *) NULL;
-     }
--    nbytes = (unsigned long)rep.length << 2;
--    res = (XModifierKeymap *) Xmalloc(sizeof(XModifierKeymap));
-+    if (rep.length < (INT_MAX >> 2) &&
-+	rep.numKeyPerModifier == rep.length >> 1) {
-+	nbytes = (unsigned long)rep.length << 2;
-+	res = (XModifierKeymap *) Xmalloc(sizeof(XModifierKeymap));
-+    } else {
-+	nbytes = 0;
-+	res = NULL;
-+    }
-     if (res) {
- 	res->modifiermap = (KeyCode *) Xmalloc(nbytes);
- 	if (res->modifiermap)
-diff --git a/src/XIQueryDevice.c b/src/XIQueryDevice.c
-index fb8504f..a457cd6 100644
---- a/src/XIQueryDevice.c
-+++ b/src/XIQueryDevice.c
-@@ -26,6 +26,7 @@
- #include <config.h>
- #endif
- 
-+#include <limits.h>
- #include <stdint.h>
- #include <X11/Xlibint.h>
- #include <X11/extensions/XI2proto.h>
-@@ -43,6 +44,7 @@ XIQueryDevice(Display *dpy, int deviceid, int *ndevices_return)
-     xXIQueryDeviceReq   *req;
-     xXIQueryDeviceReply reply;
-     char                *ptr;
-+    char                *end;
-     int                 i;
-     char                *buf;
- 
-@@ -60,14 +62,24 @@ XIQueryDevice(Display *dpy, int deviceid, int *ndevices_return)
-     if (!_XReply(dpy, (xReply*) &reply, 0, xFalse))
-         goto error;
- 
--    *ndevices_return = reply.num_devices;
--    info = Xmalloc((reply.num_devices + 1) * sizeof(XIDeviceInfo));
-+    if (reply.length < INT_MAX / 4)
-+    {
-+	*ndevices_return = reply.num_devices;
-+	info = Xmalloc((reply.num_devices + 1) * sizeof(XIDeviceInfo));
-+    }
-+    else
-+    {
-+	*ndevices_return = 0;
-+	info = NULL;
-+    }
-+
-     if (!info)
-         goto error;
- 
-     buf = Xmalloc(reply.length * 4);
-     _XRead(dpy, buf, reply.length * 4);
-     ptr = buf;
-+    end = buf + reply.length * 4;
- 
-     /* info is a null-terminated array */
-     info[reply.num_devices].name = NULL;
-@@ -79,6 +91,9 @@ XIQueryDevice(Display *dpy, int deviceid, int *ndevices_return)
-         XIDeviceInfo    *lib = &info[i];
-         xXIDeviceInfo   *wire = (xXIDeviceInfo*)ptr;
- 
-+        if (ptr + sizeof(xXIDeviceInfo) > end)
-+            goto error_loop;
-+
-         lib->deviceid    = wire->deviceid;
-         lib->use         = wire->use;
-         lib->attachment  = wire->attachment;
-@@ -87,12 +102,23 @@ XIQueryDevice(Display *dpy, int deviceid, int *ndevices_return)
- 
-         ptr += sizeof(xXIDeviceInfo);
- 
-+        if (ptr + wire->name_len > end)
-+            goto error_loop;
-+
-         lib->name = Xcalloc(wire->name_len + 1, 1);
-+        if (lib->name == NULL)
-+            goto error_loop;
-         strncpy(lib->name, ptr, wire->name_len);
-+        lib->name[wire->name_len] = '\0';
-         ptr += ((wire->name_len + 3)/4) * 4;
- 
-         sz = size_classes((xXIAnyInfo*)ptr, nclasses);
-         lib->classes = Xmalloc(sz);
-+        if (lib->classes == NULL)
-+        {
-+            Xfree(lib->name);
-+            goto error_loop;
-+        }
-         ptr += copy_classes(lib, (xXIAnyInfo*)ptr, &nclasses);
-         /* We skip over unused classes */
-         lib->num_classes = nclasses;
-@@ -103,6 +129,12 @@ XIQueryDevice(Display *dpy, int deviceid, int *ndevices_return)
-     SyncHandle();
-     return info;
- 
-+error_loop:
-+    while (--i >= 0)
-+    {
-+        Xfree(info[i].name);
-+        Xfree(info[i].classes);
-+    }
- error:
-     UnlockDisplay(dpy);
- error_unlocked:
-diff --git a/src/XListDev.c b/src/XListDev.c
-index b85ff3c..f850cd0 100644
---- a/src/XListDev.c
-+++ b/src/XListDev.c
-@@ -74,7 +74,7 @@ static int pad_to_xid(int base_size)
- }
- 
- static size_t
--SizeClassInfo(xAnyClassPtr *any, int num_classes)
-+SizeClassInfo(xAnyClassPtr *any, size_t len, int num_classes)
- {
-     int size = 0;
-     int j;
-@@ -90,6 +90,8 @@ SizeClassInfo(xAnyClassPtr *any, int num_classes)
-                 {
-                     xValuatorInfoPtr v;
- 
-+                    if (len < sizeof(v))
-+                        return 0;
-                     v = (xValuatorInfoPtr) *any;
-                     size += pad_to_xid(sizeof(XValuatorInfo) +
-                         (v->num_axes * sizeof(XAxisInfo)));
-@@ -98,6 +100,8 @@ SizeClassInfo(xAnyClassPtr *any, int num_classes)
-             default:
-                 break;
-         }
-+        if ((*any)->length > len)
-+            return 0;
-         *any = (xAnyClassPtr) ((char *)(*any) + (*any)->length);
-     }
- 
-@@ -170,7 +174,7 @@ XListInputDevices(
-     register Display	*dpy,
-     int			*ndevices)
- {
--    size_t size;
-+    size_t s, size;
-     xListInputDevicesReq *req;
-     xListInputDevicesReply rep;
-     xDeviceInfo *list, *slist = NULL;
-@@ -178,6 +182,7 @@ XListInputDevices(
-     XDeviceInfo *clist = NULL;
-     xAnyClassPtr any, sav_any;
-     XAnyClassPtr Any;
-+    char *end = NULL;
-     unsigned char *nptr, *Nptr;
-     int i;
-     unsigned long rlen;
-@@ -213,16 +218,20 @@ XListInputDevices(
- 
- 	any = (xAnyClassPtr) ((char *)list + (*ndevices * sizeof(xDeviceInfo)));
- 	sav_any = any;
-+	end = (char *)list + rlen;
- 	for (i = 0; i < *ndevices; i++, list++) {
--            size += SizeClassInfo(&any, (int)list->num_classes);
-+            s = SizeClassInfo(&any, end - (char *)any, (int)list->num_classes);
-+            if (!s)
-+                goto out;
-+            size += s;
- 	}
- 
--	Nptr = ((unsigned char *)list) + rlen + 1;
-+	Nptr = ((unsigned char *)list) + rlen;
- 	for (i = 0, nptr = (unsigned char *)any; i < *ndevices; i++) {
-+	    if (nptr >= Nptr)
-+		goto out;
- 	    size += *nptr + 1;
- 	    nptr += (*nptr + 1);
--	    if (nptr > Nptr)
--		goto out;
- 	}
- 
- 	clist = (XDeviceInfoPtr) Xmalloc(size);
-diff --git a/src/XOpenDev.c b/src/XOpenDev.c
-index 029dec2..4b3c460 100644
---- a/src/XOpenDev.c
-+++ b/src/XOpenDev.c
-@@ -53,6 +53,7 @@ SOFTWARE.
- #include <config.h>
- #endif
- 
-+#include <limits.h>
- #include <X11/extensions/XI.h>
- #include <X11/extensions/XIproto.h>
- #include <X11/Xlibint.h>
-@@ -86,9 +87,15 @@ XOpenDevice(
- 	return (XDevice *) NULL;
-     }
- 
--    rlen = rep.length << 2;
--    dev = (XDevice *) Xmalloc(sizeof(XDevice) + rep.num_classes *
--			      sizeof(XInputClassInfo));
-+    if (rep.length < INT_MAX >> 2 &&
-+	(rep.length << 2) >= rep.num_classes * sizeof(xInputClassInfo)) {
-+	rlen = rep.length << 2;
-+	dev = (XDevice *) Xmalloc(sizeof(XDevice) + rep.num_classes *
-+				  sizeof(XInputClassInfo));
-+    } else {
-+	rlen = 0;
-+	dev = NULL;
-+    }
-     if (dev) {
- 	int dlen;	/* data length */
- 
-diff --git a/src/XQueryDv.c b/src/XQueryDv.c
-index de1c0e5..7ee2272 100644
---- a/src/XQueryDv.c
-+++ b/src/XQueryDv.c
-@@ -73,7 +73,7 @@ XQueryDeviceState(
-     xQueryDeviceStateReply rep;
-     XDeviceState *state = NULL;
-     XInputClass *any, *Any;
--    char *data = NULL;
-+    char *data = NULL, *end = NULL;
-     XExtDisplayInfo *info = XInput_find_display(dpy);
- 
-     LockDisplay(dpy);
-@@ -92,6 +92,7 @@ XQueryDeviceState(
- 	if (rep.length < (INT_MAX >> 2)) {
- 	    rlen = (unsigned long) rep.length << 2;
- 	    data = Xmalloc(rlen);
-+	    end = data + rlen;
- 	}
- 	if (!data) {
- 	    _XEatDataWords(dpy, rep.length);
-@@ -100,7 +101,8 @@ XQueryDeviceState(
- 	_XRead(dpy, data, rlen);
- 
- 	for (i = 0, any = (XInputClass *) data; i < (int)rep.num_classes; i++) {
--	    if (any->length > rlen)
-+	    if ((char *)any + sizeof(XInputClass) > end ||
-+		any->length == 0 || any->length > rlen)
- 		goto out;
- 	    rlen -= any->length;
- 
-@@ -114,6 +116,8 @@ XQueryDeviceState(
- 	    case ValuatorClass:
- 	    {
- 		xValuatorState *v = (xValuatorState *) any;
-+		if ((char *)any + sizeof(xValuatorState) > end)
-+		    goto out;
- 		size += (sizeof(XValuatorState) +
- 			 (v->num_valuators * sizeof(int)));
- 	    }
--- 
-2.10.1
-
diff --git a/gnu/packages/xorg.scm b/gnu/packages/xorg.scm
index 02382586fc..a4472f1cc9 100644
--- a/gnu/packages/xorg.scm
+++ b/gnu/packages/xorg.scm
@@ -4912,8 +4912,7 @@ new API's in libXft, or the legacy API's in libX11.")
 (define-public libxi
   (package
     (name "libxi")
-    (replacement libxi/fixed)
-    (version "1.7.6")
+    (version "1.7.7")
     (source
       (origin
         (method url-fetch)
@@ -4923,7 +4922,7 @@ new API's in libXft, or the legacy API's in libX11.")
                ".tar.bz2"))
         (sha256
           (base32
-            "1b5p0l19ynmd6blnqr205wyngh6fagl35nqb4v05dw60rr9aachz"))))
+            "0c70n4aq0ba628wr88ih4740nci9d9f6y3v96sx376vvlm7q6vwr"))))
     (build-system gnu-build-system)
     (propagated-inputs
       `(("inputproto" ,inputproto)
@@ -4939,14 +4938,6 @@ new API's in libXft, or the legacy API's in libX11.")
     (description "Library for the XInput Extension to the X11 protocol.")
     (license license:x11)))
 
-(define libxi/fixed
-  (package
-    (inherit libxi)
-    (source (origin
-              (inherit (package-source libxi))
-              (patches (search-patches
-                         "libxi-CVE-2016-7945-CVE-2016-7946.patch"))))))
-
 (define-public libxrandr
   (package
     (name "libxrandr")