netdev - Re: [PATCH] netfilter: xtables: fix reentrancy

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Message-ID: <1300362323.3133.195.camel@edumazet-laptop>
Date:	Thu, 17 Mar 2011 12:45:23 +0100
From:	Eric Dumazet <eric.dumazet@...il.com>
To:	Jesper Dangaard Brouer <hawk@...u.dk>
Cc:	David Miller <davem@...emloft.net>,
	Patrick McHardy <kaber@...sh.net>,
	Netfilter Developers <netfilter-devel@...r.kernel.org>,
	netdev <netdev@...r.kernel.org>
Subject: Re: [PATCH] netfilter: xtables: fix reentrancy

Le jeudi 17 mars 2011 à 12:36 +0100, Jesper Dangaard Brouer a écrit :
> Hi Eric,
> 
> How critial is this bug fix?
> 
> Should I apply this on my stable production kernels?
> (I'm preparing a 2.6.38 kernel for prod usage, eventhougt its just been 
> released, because I want your SFQ fixes...)

I would say the race is there, but probability must be very small, and
might need malicious iptables rules (with RETURN targets)

Especially in routers, where OUTPUT path is taken from softirq handler
anyway ;)

So dont worry at all, consider this as a cleanup :)


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