netdev - Re: [PATCH net] inet: fix races in reqsk_queue_hash

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Date:	Mon, 21 Sep 2015 16:32:50 -0700 (PDT)
From:	David Miller <davem@...emloft.net>
To:	eric.dumazet@...il.com
Cc:	netdev@...r.kernel.org, ycai@...gle.com
Subject: Re: [PATCH net] inet: fix races in reqsk_queue_hash_req()

From: Eric Dumazet <eric.dumazet@...il.com>
Date: Sat, 19 Sep 2015 09:48:04 -0700

> From: Eric Dumazet <edumazet@...gle.com>
> 
> Before allowing lockless LISTEN processing, we need to make
> sure to arm the SYN_RECV timer before the req socket is visible
> in hash tables.
> 
> Also, req->rsk_hash should be written before we set rsk_refcnt
> to a non zero value.
> 
> Fixes: fa76ce7328b2 ("inet: get rid of central tcp/dccp listener timer")
> Signed-off-by: Eric Dumazet <edumazet@...gle.com>
> Cc: Ying Cai <ycai@...gle.com>

Applied and queued up for -stable.
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