Messages in this thread | | | Date | Mon, 10 Jan 2011 00:08:13 -0800 (PST) | Subject | Re: 2.6.37-rc8: Reported regressions from 2.6.36 | From | David Miller <> |
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From: "Rafael J. Wysocki" <rjw@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@goop.org> > Date : 2010-12-08 21:09 (22 days old) > Message-ID : <4CFFF3F3.90100@goop.org> > References : http://marc.info/?l=linux-kernel&m=129184256629712&w=2
This bug is intended to be fixed by:
commit 3610cda53f247e176bcbb7a7cca64bc53b12acdb Author: David S. Miller <davem@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@goop.org> Reported-by: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: David S. Miller <davem@davemloft.net>
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