linux-kernel - Re: [PATCH v3 2/3] unix/dgram: fix peeking with an offset larger than data in queue

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Message-Id: <20130430.004413.138604814207380591.davem@davemloft.net>
Date:	Tue, 30 Apr 2013 00:44:13 -0400 (EDT)
From:	David Miller <davem@...emloft.net>
To:	bpoirier@...e.de
Cc:	edumazet@...gle.com, xemul@...allels.com, xiyou.wangcong@...il.com,
	netdev@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v3 2/3] unix/dgram: fix peeking with an offset larger
 than data in queue

From: Benjamin Poirier <bpoirier@...e.de>
Date: Mon, 29 Apr 2013 17:42:13 -0400

> Currently, peeking on a unix datagram socket with an offset larger than len of
> the data in the sk receive queue returns immediately with bogus data. That's
> because *off is not reset between each skb_queue_walk().
> 
> This patch fixes this so that the behavior is the same as peeking with no
> offset on an empty queue: the caller blocks.
> 
> Signed-off-by: Benjamin Poirier <bpoirier@...e.de>

Applied.
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