[Bug 24592] Re: 2.6.37-rc8: Reported regressions from 2.6.36
Rafael J. Wysocki
rjw at sisk.pl
Mon Jan 10 12:09:31 PST 2011
On Monday, January 10, 2011, David Miller wrote:
> From: "Rafael J. Wysocki" <rjw at sisk.pl>
> Date: Wed, 29 Dec 2010 23:59:38 +0100 (CET)
> > Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=24592
> > Subject : 2.6.37-rc5: NULL pointer oops in selinux_socket_unix_stream_connect
> > Submitter : Jeremy Fitzhardinge <jeremy at goop.org>
> > Date : 2010-12-08 21:09 (22 days old)
> This bug is intended to be fixed by:
> commit 3610cda53f247e176bcbb7a7cca64bc53b12acdb
> Author: David S. Miller <davem at davemloft.net>
> Date: Wed Jan 5 15:38:53 2011 -0800
> af_unix: Avoid socket->sk NULL OOPS in stream connect security hooks.
> unix_release() can asynchornously set socket->sk to NULL, and
> it does so without holding the unix_state_lock() on "other"
> during stream connects.
> However, the reverse mapping, sk->sk_socket, is only transitioned
> to NULL under the unix_state_lock().
> Therefore make the security hooks follow the reverse mapping instead
> of the forward mapping.
> Reported-by: Jeremy Fitzhardinge <jeremy at goop.org>
> Reported-by: Linus Torvalds <torvalds at linux-foundation.org>
> Signed-off-by: David S. Miller <davem at davemloft.net>
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