--- a/open-src/xserver/xorg/CVE-2013-4396.patch	Tue Nov 26 18:54:46 2013 -0800
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,76 +0,0 @@
-From 7bddc2ba16a2a15773c2ea8947059afa27727764 Mon Sep 17 00:00:00 2001
-From: Alan Coopersmith <[email protected]>
-Date: Mon, 16 Sep 2013 21:47:16 -0700
-Subject: [PATCH] Avoid use-after-free in dix/dixfonts.c: doImageText()
- [CVE-2013-4396]
-
-Save a pointer to the passed in closure structure before copying it
-and overwriting the *c pointer to point to our copy instead of the
-original.  If we hit an error, once we free(c), reset c to point to
-the original structure before jumping to the cleanup code that
-references *c.
-
-Since one of the errors being checked for is whether the server was
-able to malloc(c->nChars * itemSize), the client can potentially pass
-a number of characters chosen to cause the malloc to fail and the
-error path to be taken, resulting in the read from freed memory.
-
-Since the memory is accessed almost immediately afterwards, and the
-X server is mostly single threaded, the odds of the free memory having
-invalid contents are low with most malloc implementations when not using
-memory debugging features, but some allocators will definitely overwrite
-the memory there, leading to a likely crash.
-
-Reported-by: Pedro Ribeiro <[email protected]>
-Signed-off-by: Alan Coopersmith <[email protected]>
-Reviewed-by: Julien Cristau <[email protected]>
----
- dix/dixfonts.c |    5 +++++
- 1 file changed, 5 insertions(+)
-
-diff --git a/dix/dixfonts.c b/dix/dixfonts.c
-index feb765d..2e34d37 100644
---- a/dix/dixfonts.c
-+++ b/dix/dixfonts.c
-@@ -1425,6 +1425,7 @@ doImageText(ClientPtr client, ITclosurePtr c)
-             GC *pGC;
-             unsigned char *data;
-             ITclosurePtr new_closure;
-+            ITclosurePtr old_closure;
- 
-             /* We're putting the client to sleep.  We need to
-                save some state.  Similar problem to that handled
-@@ -1436,12 +1437,14 @@ doImageText(ClientPtr client, ITclosurePtr c)
-                 err = BadAlloc;
-                 goto bail;
-             }
-+            old_closure = c;
-             *new_closure = *c;
-             c = new_closure;
- 
-             data = malloc(c->nChars * itemSize);
-             if (!data) {
-                 free(c);
-+                c = old_closure;
-                 err = BadAlloc;
-                 goto bail;
-             }
-@@ -1452,6 +1455,7 @@ doImageText(ClientPtr client, ITclosurePtr c)
-             if (!pGC) {
-                 free(c->data);
-                 free(c);
-+                c = old_closure;
-                 err = BadAlloc;
-                 goto bail;
-             }
-@@ -1464,6 +1468,7 @@ doImageText(ClientPtr client, ITclosurePtr c)
-                 FreeScratchGC(pGC);
-                 free(c->data);
-                 free(c);
-+                c = old_closure;
-                 err = BadAlloc;
-                 goto bail;
-             }
--- 
-1.7.9.2
-