From 98899a80f02b9616a1038c4c51993435c1074046 Mon Sep 17 00:00:00 2001
From: marha <marha@users.sourceforge.net>
Date: Mon, 23 Nov 2009 10:29:29 +0000
Subject: Solved problem of accessing memory after being freed.

---
 xorg-server/glx/glxext.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

(limited to 'xorg-server/glx')

diff --git a/xorg-server/glx/glxext.c b/xorg-server/glx/glxext.c
index 42fcf5914..c8885fd3a 100644
--- a/xorg-server/glx/glxext.c
+++ b/xorg-server/glx/glxext.c
@@ -129,8 +129,10 @@ static int glxBlockClients;
 static Bool DrawableGone(__GLXdrawable *glxPriv, XID xid)
 {
     __GLXcontext *c;
+    __GLXcontext *cnext;
 
-    for (c = glxAllContexts; c; c = c->next) {
+    for (c = glxAllContexts; c; c = cnext) {
+	cnext=c->next; /* Safe because c is going to be freed */
 	if (c->isCurrent && (c->drawPriv == glxPriv || c->readPriv == glxPriv)) {
 	    int i;
 
-- 
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