This is a note to let you know that I've just added the patch titled
xfrm: Fix off by one in the replay advance functions
to the 2.6.39-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:
xfrm-fix-off-by-one-in-the-replay-advance-functions.patch
and it can be found in the queue-2.6.39 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <[email protected]> know about it.
>From 989d4bc59dbb997b5a17ff252eb3d1014c47102b Mon Sep 17 00:00:00 2001
From: Steffen Klassert <[email protected]>
Date: Sun, 5 Jun 2011 20:46:03 +0000
Subject: xfrm: Fix off by one in the replay advance functions
From: Steffen Klassert <[email protected]>
[ Upstream commit e756682c8baa47da1648c0c016e9f48ed66bc32d ]
We may write 4 byte too much when we reinitialize the anti replay
window in the replay advance functions. This patch fixes this by
adjusting the last index of the initialization loop.
Signed-off-by: Steffen Klassert <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>
---
net/xfrm/xfrm_replay.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
--- a/net/xfrm/xfrm_replay.c
+++ b/net/xfrm/xfrm_replay.c
@@ -265,7 +265,7 @@ static void xfrm_replay_advance_bmp(stru
bitnr = bitnr & 0x1F;
replay_esn->bmp[nr] |= (1U << bitnr);
} else {
- nr = replay_esn->replay_window >> 5;
+ nr = (replay_esn->replay_window - 1) >> 5;
for (i = 0; i <= nr; i++)
replay_esn->bmp[i] = 0;
@@ -471,7 +471,7 @@ static void xfrm_replay_advance_esn(stru
bitnr = bitnr & 0x1F;
replay_esn->bmp[nr] |= (1U << bitnr);
} else {
- nr = replay_esn->replay_window >> 5;
+ nr = (replay_esn->replay_window - 1) >> 5;
for (i = 0; i <= nr; i++)
replay_esn->bmp[i] = 0;
Patches currently in stable-queue which might be from
[email protected] are
queue-2.6.39/xfrm-fix-off-by-one-in-the-replay-advance-functions.patch
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