Message-ID: <1489121945.13992.1.camel@gmx.de>
Subject: Re: [block] BUG: KASAN: use-after-free in rb_erase+0x1431/0x1970
From: Mike Galbraith <efault@gmx.de>
To: Jens Axboe <axboe@kernel.dk>, LKML <linux-kernel@vger.kernel.org>
Date: Fri, 10 Mar 2017 05:59:05 +0100
In-Reply-To: <6b17c360-d11f-6db5-4933-0c91f70d6a89@kernel.dk>
References: <1489072619.3839.9.camel@gmx.de>
         <6b17c360-d11f-6db5-4933-0c91f70d6a89@kernel.dk>
Content-Type: text/plain; charset="us-ascii"
Mime-Version: 1.0
Content-Transfer-Encoding: 7bit
Sender: linux-kernel-owner@vger.kernel.org
Content-Length: 964
Lines: 25

On Thu, 2017-03-09 at 08:38 -0700, Jens Axboe wrote:
> On 03/09/2017 08:16 AM, Mike Galbraith wrote:
> > Greetings,
> > 
> > Building master.today with kasan enabled (because I saw the same when
> > trying out kasan on rt), the below fell out.
> > 
> > Config is enterprise based (tune for maximum build time), plus PREEMPT.
> > 
> > [    5.335444] ==================================================================
> > [    5.337030] BUG: KASAN: use-after-free in rb_erase+0x1431/0x1970 at addr ffff88035e78abb0
> > [    5.338642] Write of size 8 by task swapper/7/0
> > [    5.340204] CPU: 7 PID: 0 Comm: swapper/7 Tainted: G            E   4.11.0-kasan #160
> > [    5.341774] Hardware name: MEDION MS-7848/MS-7848, BIOS M7848W08.20C 09/23/2013
> 
> Should be fixed in my for-linus branch, it'll go out soon. If you want
> to verify, pull:
> 
> git://git.kernel.dk/linux-block for-linus
> 
> into master and see if that works for you.

Yup, all better.

	-Mike