From: David Miller <davem@davemloft.net>
To: rjw@sisk.pl
Cc: linux-kernel@vger.kernel.org, maciej.rutecki@gmail.com,
florian@mickler.org, akpm@linux-foundation.org,
torvalds@linux-foundation.org, kernel-testers@vger.kernel.org,
netdev@vger.kernel.org, linux-acpi@vger.kernel.org,
linux-pm@lists.linux-foundation.org, linux-scsi@vger.kernel.org,
linux-wireless@vger.kernel.org, dri-devel@lists.freedesktop.org
Subject: Re: 2.6.37-rc8: Reported regressions from 2.6.36
Date: Mon, 10 Jan 2011 00:08:13 -0800 (PST) [thread overview]
Message-ID: <20110110.000813.173856001.davem@davemloft.net> (raw)
In-Reply-To: <96DQe4a_2tH.A.cFB.l27GNB@chimera>
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>
next prev parent reply other threads:[~2011-01-10 8:08 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-12-29 22:59 2.6.37-rc8: Reported regressions from 2.6.36 Rafael J. Wysocki
2011-01-10 8:08 ` David Miller [this message]
2011-01-10 20:09 ` [Bug 24592] " Rafael J. Wysocki
2011-01-10 20:11 ` Rafael J. Wysocki
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