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From: Adrian Bunk <bunk@stusta.de>
To: bcollins@debian.org, dan@dennedy.org
Cc: linux1394-devel@lists.sourceforge.net, scjody@steamballoon.com,
	linux-kernel@vger.kernel.org, stable@kernel.org
Subject: [2.6 patch] drivers/ieee1394/raw1394.c: fix a NULL pointer dereference
Date: Mon, 21 Nov 2005 00:20:09 +0100	[thread overview]
Message-ID: <20051120232009.GH16060@stusta.de> (raw)

The coverity checker spotted that this was a NULL pointer dereference in 
the "if (copy_from_user(...))" case.


Signed-off-by: Adrian Bunk <bunk@stusta.de>

--- linux-2.6.15-rc1-mm2-full/drivers/ieee1394/raw1394.c.old	2005-11-20 22:08:57.000000000 +0100
+++ linux-2.6.15-rc1-mm2-full/drivers/ieee1394/raw1394.c	2005-11-20 22:09:34.000000000 +0100
@@ -2166,7 +2166,8 @@
 			}
 		}
 	}
-	kfree(cache->filled_head);
+	if(cache->filled_head)
+		kfree(cache->filled_head);
 	kfree(cache);
 
 	if (ret >= 0) {


             reply	other threads:[~2005-11-20 23:20 UTC|newest]

Thread overview: 14+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2005-11-20 23:20 Adrian Bunk [this message]
2005-11-20 23:33 ` [2.6 patch] drivers/ieee1394/raw1394.c: fix a NULL pointer dereference Jody McIntyre
2005-11-20 23:46   ` Adrian Bunk
2005-11-20 23:54     ` Adrian Bunk
2005-11-20 23:40 ` Dave Jones
2005-11-20 23:52   ` Adrian Bunk
2005-11-21 19:13     ` Stefan Richter
2005-11-21 18:56       ` Ben Collins
2005-11-21 21:52         ` Jody McIntyre
2005-11-21 22:09           ` Stefan Richter
2005-11-21 22:32             ` Jody McIntyre
2005-11-21 21:55     ` Jody McIntyre
2005-11-20 23:45 ` Jesper Juhl
2005-11-20 23:54   ` Adrian Bunk

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