netdev - Re: [PATCH net] netem: fix a use after free

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Message-Id: <20160623.150829.1562725878285580078.davem@davemloft.net>
Date:	Thu, 23 Jun 2016 15:08:29 -0400 (EDT)
From:	David Miller <davem@...emloft.net>
To:	eric.dumazet@...il.com
Cc:	netdev@...r.kernel.org, jhs@...atatu.com, xiyou.wangcong@...il.com,
	stephen@...workplumber.org
Subject: Re: [PATCH net] netem: fix a use after free

From: Eric Dumazet <eric.dumazet@...il.com>
Date: Mon, 20 Jun 2016 15:00:43 -0700

> From: Eric Dumazet <edumazet@...gle.com>
> 
> If the packet was dropped by lower qdisc, then we must not
> access it later.
> 
> Save qdisc_pkt_len(skb) in a temp variable.
> 
> Fixes: 2ccccf5fb43f ("net_sched: update hierarchical backlog too")
> Signed-off-by: Eric Dumazet <edumazet@...gle.com>

Applied and queued up for -stable, thanks.