Re: [PATCH] net: Fix sock_wfree() race

[David Miller]

From: Eric Dumazet <eric.dumazet@xxxxxxxxx>
Date: Thu, 24 Sep 2009 22:49:24 +0200

> [PATCH] net: Fix sock_wfree() race
> 
> Commit 2b85a34e911bf483c27cfdd124aeb1605145dc80
> (net: No more expensive sock_hold()/sock_put() on each tx)
> opens a window in sock_wfree() where another cpu
> might free the socket we are working on.
> 
> A fix is to call sk->sk_write_space(sk) while still
> holding a reference on sk.
> 
> 
> Reported-by: Jike Song <albcamus@xxxxxxxxx>
> Signed-off-by: Eric Dumazet <eric.dumazet@xxxxxxxxx>

Applied to net-2.6 and I'll queue this up for -stable.

Thanks!
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