linux-kernel - Re: 3.8-rc2/rc3 write() blocked on CLOSE

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Message-Id: <20130110.224954.902891494419623809.davem@davemloft.net>
Date:	Thu, 10 Jan 2013 22:49:54 -0800 (PST)
From:	David Miller <davem@...emloft.net>
To:	eric.dumazet@...il.com
Cc:	normalperson@...t.net, netdev@...r.kernel.org, mgorman@...e.de,
	linux-mm@...ck.org, linux-kernel@...r.kernel.org, riel@...hat.com,
	minchan@...nel.org, akpm@...ux-foundation.org,
	torvalds@...ux-foundation.org
Subject: Re: 3.8-rc2/rc3 write() blocked on CLOSE_WAIT TCP socket

From: Eric Dumazet <eric.dumazet@...il.com>
Date: Thu, 10 Jan 2013 18:18:47 -0800

> [PATCH] tcp: accept RST without ACK flag
> 
> commit c3ae62af8e755 (tcp: should drop incoming frames without ACK flag
> set) added a regression on the handling of RST messages.
> 
> RST should be allowed to come even without ACK bit set. We validate
> the RST by checking the exact sequence, as requested by RFC 793 and 
> 5961 3.2, in tcp_validate_incoming()
> 
> Reported-by: Eric Wong <normalperson@...t.net>
> Signed-off-by: Eric Dumazet <edumazet@...gle.com>

Applied, thanks Eric.
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