This is a note to let you know that I've just added the patch titled
9p: BUG before corrupting memory
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:
9p-bug-before-corrupting-memory.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 5fcb08befaf57faa1b00e514915c1660252b8c26 Mon Sep 17 00:00:00 2001
From: Sasha Levin <[email protected]>
Date: Mon, 11 Jun 2012 10:18:13 -0500
Subject: 9p: BUG before corrupting memory
From: Sasha Levin <[email protected]>
commit 5fcb08befaf57faa1b00e514915c1660252b8c26 upstream.
The BUG_ON() in pack_sg_list() would get triggered only one time after we've
corrupted some memory by sg_set_buf() into an invalid sg buffer.
I'm still working on figuring out why I manage to trigger that bug...
Signed-off-by: Sasha Levin <[email protected]>
Signed-off-by: Eric Van Hensbergen <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>
---
net/9p/trans_virtio.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- a/net/9p/trans_virtio.c
+++ b/net/9p/trans_virtio.c
@@ -192,10 +192,10 @@ static int pack_sg_list(struct scatterli
s = rest_of_page(data);
if (s > count)
s = count;
+ BUG_ON(index > limit);
sg_set_buf(&sg[index++], data, s);
count -= s;
data += s;
- BUG_ON(index > limit);
}
return index-start;
Patches currently in stable-queue which might be from [email protected]
are
queue-3.4/9p-bug-before-corrupting-memory.patch
--
To unsubscribe from this list: send the line "unsubscribe stable" in
the body of a message to [email protected]
More majordomo info at http://vger.kernel.org/majordomo-info.html
