This is a note to let you know that I've just added the patch titled
isdn/gigaset: fix zero size border case in debug dump
to the 3.4-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
isdn-gigaset-fix-zero-size-border-case-in-debug-dump.patch
and it can be found in the queue-3.4 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <[email protected]> know about it.
>From 9691b27751ccc3faae7cff9a8c8b28a9139caa80 Mon Sep 17 00:00:00 2001
From: Tilman Schmidt <[email protected]>
Date: Mon, 21 Jan 2013 11:57:21 +0000
Subject: isdn/gigaset: fix zero size border case in debug dump
From: Tilman Schmidt <[email protected]>
[ Upstream commit d721a1752ba544df8d7d36959038b26bc92bdf80 ]
If subtracting 12 from l leaves zero we'd do a zero size allocation,
leading to an oops later when we try to set the NUL terminator.
Reported-by: Dan Carpenter <[email protected]>
Signed-off-by: Tilman Schmidt <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>
---
drivers/isdn/gigaset/capi.c | 2 ++
1 file changed, 2 insertions(+)
--- a/drivers/isdn/gigaset/capi.c
+++ b/drivers/isdn/gigaset/capi.c
@@ -264,6 +264,8 @@ static inline void dump_rawmsg(enum debu
CAPIMSG_APPID(data), CAPIMSG_MSGID(data), l,
CAPIMSG_CONTROL(data));
l -= 12;
+ if (l <= 0)
+ return;
dbgline = kmalloc(3 * l, GFP_ATOMIC);
if (!dbgline)
return;
Patches currently in stable-queue which might be from [email protected] are
queue-3.4/isdn-gigaset-fix-zero-size-border-case-in-debug-dump.patch
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