+++ /dev/null
-From a59c7428549c8be0724bcfceecd596582840852b Mon Sep 17 00:00:00 2001
-From: Chris Wilson <chris@chris-wilson.co.uk>
-Date: Thu, 24 Jun 2010 12:24:58 +0100
-Subject: [PATCH] glx: Prevent NULL context deref in __glXGetDrawable()
-MIME-Version: 1.0
-Content-Type: text/plain; charset=UTF-8
-Content-Transfer-Encoding: 8bit
-
-During a SwapBuffers request, we may end up querying an unknown drawable
-outside of an active context, and so need to report this error prior to
-attempting to dereference the NULL context.
-
-Also fixes:
-
- [Bug 29184] glXSwapBuffers with no GLX context crashes X.
- https://bugs.freedesktop.org/show_bug.cgi?id=29184
-
-Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
-Cc: Kristian Høgsberg <krh@bitplanet.net>
----
- glx/glxcmds.c | 7 +++++++
- 1 files changed, 7 insertions(+), 0 deletions(-)
-
-diff --git a/glx/glxcmds.c b/glx/glxcmds.c
-index 9e5b213..8d13c15 100644
---- a/glx/glxcmds.c
-+++ b/glx/glxcmds.c
-@@ -491,6 +491,13 @@ __glXGetDrawable(__GLXcontext *glxc, GLXDrawable drawId, ClientPtr client,
- return pGlxDraw;
- }
-
-+ /* No active context and an unknown drawable, bail. */
-+ if (glxc == NULL) {
-+ client->errorValue = drawId;
-+ *error = BadMatch;
-+ return NULL;
-+ }
-+
- /* The drawId wasn't a GLX drawable. Make sure it's a window and
- * create a GLXWindow for it. Check that the drawable screen
- * matches the context screen and that the context fbconfig is
---
-1.7.1
-