netdev - Re: [PATCH net-next] 8021q: fix a potential use-after-free

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Message-Id: <20130324.172756.1733514118551455926.davem@davemloft.net>
Date:	Sun, 24 Mar 2013 17:27:56 -0400 (EDT)
From:	David Miller <davem@...emloft.net>
To:	amwang@...hat.com
Cc:	netdev@...r.kernel.org, kaber@...sh.net
Subject: Re: [PATCH net-next] 8021q: fix a potential use-after-free

From: Cong Wang <amwang@...hat.com>
Date: Sat, 23 Mar 2013 13:14:07 +0800

> From: Cong Wang <amwang@...hat.com>
> 
> vlan_vid_del() could possibly free ->vlan_info after a RCU grace
> period, however, we may still refer to the freed memory area
> by 'grp' pointer. Found by code inspection.
> 
> This patch moves vlan_vid_del() as behind as possible.
> 
> Cc: Patrick McHardy <kaber@...sh.net>
> Cc: "David S. Miller" <davem@...emloft.net>
> Signed-off-by: Cong Wang <amwang@...hat.com>

Applied.
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