linux-kernel - Re: use-after-free in bluetooth (hci_conn_hash

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Message-ID: <20120306152215.GA20793@redhat.com>
Date:	Tue, 6 Mar 2012 10:22:15 -0500
From:	Dave Jones <davej@...hat.com>
To:	Andrei Emeltchenko <andrei.emeltchenko.news@...il.com>
Cc:	Marcel Holtmann <marcel@...tmann.org>,
	"Gustavo F. Padovan" <padovan@...fusion.mobi>,
	Linux Kernel <linux-kernel@...r.kernel.org>,
	Fedora Kernel Team <kernel-team@...oraproject.org>
Subject: Re: use-after-free in bluetooth (hci_conn_hash_flush)

On Tue, Mar 06, 2012 at 10:53:44AM +0200, Andrei Emeltchenko wrote:

 > On Mon, Mar 05, 2012 at 05:12:42PM -0500, Dave Jones wrote:
 > > We had a user report this, which looks like a use after free
 > > in hci_conn_hash_flush(). Probably related to bf4c63252490ba78fb833cc7acf1a5b1900c970f
 > 
 > Yes most probably this is the reason.
 > 
 > > Full report is at https://bugzilla.redhat.com/show_bug.cgi?id=797590
 > 
 > Could you try following commit?
 > 
 > commit 3c4e0df028935618d052235ba85bc7079be13394
 > Author: Andrei Emeltchenko <andrei.emeltchenko@...el.com>
 > Date:   Thu Feb 2 10:32:17 2012 +0200
 > 
 >     Bluetooth: Use list _safe deleting from conn_hash_list

Could you attach the patch ? I'll throw it into a Fedora build for
the user who saw this to test.

	Dave
 
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