From: Evan Green <evgreen@google.com>
To: Bart Van Assche <bvanassche@acm.org>
Cc: linux-block <linux-block@vger.kernel.org>,
LKML <linux-kernel@vger.kernel.org>, Jens Axboe <axboe@kernel.dk>
Subject: Re: KASAN warning in bt_for_each
Date: Thu, 14 Feb 2019 12:45:41 -0800 [thread overview]
Message-ID: <CAE=gft5GR1xEM1gNQjMyo_wfhs_JUAc2AUHHk5qr36EjaWv1hg@mail.gmail.com> (raw)
In-Reply-To: <1550172827.93548.5.camel@acm.org>
On Thu, Feb 14, 2019 at 11:33 AM Bart Van Assche <bvanassche@acm.org> wrote:
>
> On Thu, 2019-02-14 at 10:04 -0800, Evan Green wrote:
> > Greetings, block experts!
> >
> > I'm trying to track down a KASAN warning I'm seeing in our downstream
> > 4.19 kernel, and I could use a little help. The warning looks like
> > this:
> >
> > [ 224.564894] BUG: KASAN: use-after-free in bt_for_each+0x1ac/0x28c
> > [ 224.571195] Read of size 8 at addr ffffffc17c621340 by task fio/3851
> > [ 224.577745]
> > [ 224.579320] CPU: 2 PID: 3851 Comm: fio Tainted: G W 4.19.16 #398
>
> Please have a look at this e-mail thread:
> https://lore.kernel.org/linux-block/1545261885.185366.488.camel@acm.org/
Oh, yep, that's totally it. Did that patch make it in anywhere?
-Evan
next prev parent reply other threads:[~2019-02-14 20:46 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-02-14 18:04 KASAN warning in bt_for_each Evan Green
2019-02-14 19:33 ` Bart Van Assche
2019-02-14 20:45 ` Evan Green [this message]
2019-02-14 20:50 ` Jens Axboe
2019-02-14 22:20 ` Bart Van Assche
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