From mboxrd@z Thu Jan 1 00:00:00 1970 From: "Rafael J. Wysocki" Subject: Re: 2.6.37-rc8: Reported regressions from 2.6.36 Date: Mon, 10 Jan 2011 21:11:06 +0100 Message-ID: <201101102111.07266.rjw@sisk.pl> References: <96DQe4a_2tH.A.cFB.l27GNB@chimera> <20110110.000813.173856001.davem@davemloft.net> Mime-Version: 1.0 Content-Type: Text/Plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <20110110.000813.173856001.davem@davemloft.net> Sender: linux-scsi-owner@vger.kernel.org To: David Miller 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 List-Id: linux-acpi@vger.kernel.org On Monday, January 10, 2011, David Miller wrote: > From: "Rafael J. Wysocki" > 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 > > 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 > 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 > Reported-by: Linus Torvalds > Signed-off-by: David S. Miller > OK, thanks for the info, closing. Rafael