From mboxrd@z Thu Jan  1 00:00:00 1970
From: David Miller <davem@davemloft.net>
Subject: Re: Missing TCP SYN on loopback, retransmits after 1s
Date: Wed, 23 Nov 2011 17:29:59 -0500 (EST)
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From: Eric Dumazet <eric.dumazet@gmail.com>
Date: Wed, 23 Nov 2011 15:38:44 +0100

> [PATCH] ipv6: tcp: fix tcp_v6_conn_request()
> 
> Since linux 2.6.26 (commit c6aefafb7ec6 : Add IPv6 support to TCP SYN
> cookies), we can drop a SYN packet reusing a TIME_WAIT socket.
> 
> (As a matter of fact we fail to send the SYNACK answer)
> 
> As the client resends its SYN packet after a one second timeout, we
> accept it, because first packet removed the TIME_WAIT socket before
> being dropped.
> 
> This probably explains why nobody ever noticed or complained.
> 
> Reported-by: Jesse Young <jlyo@jlyo.org>
> Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>

Applied and queued up for -stable, thanks!