This is a note to let you know that I've just added the patch titled
net: use hlist_del_rcu() in dev_change_name()
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:
net-use-hlist_del_rcu-in-dev_change_name.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 a586e48b616d1b2298e7399d66058dfe14c96eab Mon Sep 17 00:00:00 2001
From: Eric Dumazet <[email protected]>
Date: Tue, 17 May 2011 13:56:59 -0400
Subject: net: use hlist_del_rcu() in dev_change_name()
From: Eric Dumazet <[email protected]>
[ Upstream commit 372b2312010bece1e36f577d6c99a6193ec54cbd ]
Using plain hlist_del() in dev_change_name() is wrong since a
concurrent reader can crash trying to dereference LIST_POISON1.
Bug introduced in commit 72c9528bab94 (net: Introduce
dev_get_by_name_rcu())
Signed-off-by: Eric Dumazet <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>
---
net/core/dev.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- a/net/core/dev.c
+++ b/net/core/dev.c
@@ -1007,7 +1007,7 @@ rollback:
}
write_lock_bh(&dev_base_lock);
- hlist_del(&dev->name_hlist);
+ hlist_del_rcu(&dev->name_hlist);
write_unlock_bh(&dev_base_lock);
synchronize_rcu();
Patches currently in stable-queue which might be from [email protected] are
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