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From: Linus Torvalds <torvalds@linux-foundation.org>
Date: Wed, 2 Nov 2011 11:00:35 -0700
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Subject: Re: Linux 3.1-rc9
To: Eric Dumazet <eric.dumazet@gmail.com>
Cc: Thomas Gleixner <tglx@linutronix.de>, Simon Kirby <sim@hostway.ca>,
        David Miller <davem@davemloft.net>,
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On Wed, Nov 2, 2011 at 10:53 AM, Eric Dumazet <eric.dumazet@gmail.com> wrote:
>
> tcp_v4_syn_recv_sock()
> {
>        newsk = tcp_create_openreq_child(sk, req, skb);
>
> newsk is locked at this point.

Umm, if that is the case, then the bug predates the commit you point
to. There were exit paths before that too.

                   Linus