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Date:	Thu, 10 Apr 2014 10:19:21 +0200
From:	Daniel Borkmann <>
To:	Eric Dumazet <>
CC:	David Miller <>,
	netdev <>, Xi Wang <>
Subject: Re: [PATCH] packet: fix potential use after free

On 04/10/2014 03:22 AM, Eric Dumazet wrote:
> From: Eric Dumazet <>
> As soon skb is queued into sk_receive_queue, it can be consumed,
> so its racy to access skb->len.
> Given that sk_data_ready() / sock_def_readable() don't really care, just
> use 0 instead of skb->len
> Signed-off-by: Eric Dumazet <>
> Cc: Xi Wang <>

Acked-by: Daniel Borkmann <>

Seems to be there since pre 2005 ...
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