linux-kernel - Re: [PATCH alt.2] af_packet: Don't use skb after dev_queue

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Message-ID: <20100106064957.3be271b8@nehalam>
Date:	Wed, 6 Jan 2010 06:49:57 -0800
From:	Stephen Hemminger <shemminger@...tta.com>
To:	Jarek Poplawski <jarkao2@...il.com>
Cc:	Michael Breuer <mbreuer@...jas.com>,
	David Miller <davem@...emloft.net>, akpm@...ux-foundation.org,
	flyboy@...il.com, linux-kernel@...r.kernel.org,
	netdev@...r.kernel.org
Subject: Re: [PATCH alt.2] af_packet: Don't use skb after dev_queue_xmit()

On Wed, 6 Jan 2010 09:15:32 +0000
Jarek Poplawski <jarkao2@...il.com> wrote:

> tpacket_snd() can change and kfree an skb after dev_queue_xmit(),
> which is illegal.
> 
> With debugging by: Stephen Hemminger <shemminger@...ux-foundation.org>
> 
> Reported-by: Michael Breuer <mbreuer@...jas.com>
> Signed-off-by: Jarek Poplawski <jarkao2@...il.com>

Good catch.
Acked-by: Stephen Hemminger <shemminger@...tta.com>

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