netdev - Re: Possible netfilter-related memory corruption in 2.6.37

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Message-ID: <1297696283.2996.33.camel@edumazet-laptop>
Date:	Mon, 14 Feb 2011 16:11:23 +0100
From:	Eric Dumazet <eric.dumazet@...il.com>
To:	Avi Kivity <avi@...hat.com>
Cc:	netfilter-devel@...r.kernel.org,
	Marcelo Tosatti <mtosatti@...hat.com>,
	nicolas prochazka <prochazka.nicolas@...il.com>,
	KVM list <kvm@...r.kernel.org>, netdev <netdev@...r.kernel.org>
Subject: Re: Possible netfilter-related memory corruption in 2.6.37

Le lundi 14 février 2011 à 16:58 +0200, Avi Kivity a écrit :
> We see severe memory corruption in kvm while used in conjunction with 
> bridge/netfilter.  Enabling slab debugging points the finger at a 
> netfilter chain invoked from the bridge code.
> 
> Can someone take a look?
> 
> https://bugzilla.kernel.org/show_bug.cgi?id=27052
> 

CC netdev

Does a revert of commit ca44ac386181ba7 help a bit ?

(net: don't reallocate skb->head unless the current one hasn't the
needed extra size or is shared)




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