Re: [PATCH] netfilter: ctnetlink: fix race between delete and timeout expiration

[David Miller <davem@xxxxxxxxxxxxx>]

From: pablo@xxxxxxxxxxxxx
Date: Fri, 16 Mar 2012 13:00:34 +0100

> From: Pablo Neira Ayuso <pablo@xxxxxxxxxxxxx>
> 
> Kerin Millar reported hardlockups while running `conntrackd -c'
> in a busy firewall. That system (with several processors) was
> acting as backup in a primary-backup setup.
> 
> After several tries, I found a race condition between the deletion
> operation of ctnetlink and timeout expiration. This patch fixes
> this problem.
> 
> Tested-by: Kerin Millar <kerframil@xxxxxxxxx>
> Reported-by: Kerin Millar <kerframil@xxxxxxxxx>
> Signed-off-by: Pablo Neira Ayuso <pablo@xxxxxxxxxxxxx>

Applied, thanks.
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