netdev - Re: [PATCH] udp: ipv4: fix potential use after free in udp_v4_early

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Message-Id: <20131211.161649.858953352616918428.davem@davemloft.net>
Date:	Wed, 11 Dec 2013 16:16:49 -0500 (EST)
From:	David Miller <davem@...emloft.net>
To:	eric.dumazet@...il.com
Cc:	sbohrer@...advisors.com, netdev@...r.kernel.org
Subject: Re: [PATCH] udp: ipv4: fix potential use after free in
 udp_v4_early_demux()

From: Eric Dumazet <eric.dumazet@...il.com>
Date: Wed, 11 Dec 2013 08:10:05 -0800

> From: Eric Dumazet <edumazet@...gle.com>
> 
> pskb_may_pull() can reallocate skb->head, we need to move the
> initialization of iph and uh pointers after its call.
> 
> Fixes: 421b3885bf6d ("udp: ipv4: Add udp early demux")
> Signed-off-by: Eric Dumazet <edumazet@...gle.com>
> Cc: Shawn Bohrer <sbohrer@...advisors.com>

Applied, thanks Eric.
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