Re: KASAN: use-after-free Read in remove_wait_queue

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To: Al Viro <viro@xxxxxxxxxxxxxxxxxx>
Subject: Re: KASAN: use-after-free Read in remove_wait_queue
From: Martijn Coenen <maco@xxxxxxxxxxx>
Date: Tue, 13 Feb 2018 08:42:29 +0100
Cc: "open list:ANDROID DRIVERS" <devel@xxxxxxxxxxxxxxxxxxxx>, Todd Kjos <tkjos@xxxxxxxxxxx>, Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>, syzkaller-bugs@xxxxxxxxxxxxxxxx, LKML <linux-kernel@xxxxxxxxxxxxxxx>, Arve Hjønnevåg <arve@xxxxxxxxxxx>, linux-fsdevel@xxxxxxxxxxxxxxx, syzbot <syzbot+a2a3c4909716e271487e@xxxxxxxxxxxxxxxxxxxxxxxxx>, Dmitry Vyukov <dvyukov@xxxxxxxxxx>, Todd Kjos <tkjos@xxxxxxxxxx>
In-reply-to: <20180212183125.GR30522@ZenIV.linux.org.uk>
References: <001a113f65b6d93e74056505e572@google.com> <CACT4Y+ZcXVrPAFrxfAohQ=PdqcN8fwrFq4ZGwzP-K_sSUEOY8A@mail.gmail.com> <CAHRSSEw7xrtANf2t4bUqMuz83MOo4s9+oGcDqSS7QpMoW7XGJQ@mail.gmail.com> <CACT4Y+bPoOWqCfz-jx13Vs+KVnrV2V6nn-nFDzjP=WgWYN1CWw@mail.gmail.com> <20180212183125.GR30522@ZenIV.linux.org.uk>

On Mon, Feb 12, 2018 at 7:31 PM, Al Viro <viro@xxxxxxxxxxxxxxxxxx> wrote:
> Any chance of bisecting it?

Perhaps my fix introduced another (related) problem, I'm looking into it.
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References:
- Re: KASAN: use-after-free Read in remove_wait_queue
  - From: Dmitry Vyukov
- Re: KASAN: use-after-free Read in remove_wait_queue
  - From: Todd Kjos
- Re: KASAN: use-after-free Read in remove_wait_queue
  - From: Dmitry Vyukov
- Re: KASAN: use-after-free Read in remove_wait_queue
  - From: Al Viro

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