Re: possible deadlock in shmem_file_llseek

From: Dmitry Vyukov
Date: Wed Jan 24 2018 - 13:44:20 EST


On Wed, Jan 24, 2018 at 7:42 PM, syzbot
<syzbot+8ec30bb7bf1a981a2012@xxxxxxxxxxxxxxxxxxxxxxxxx> wrote:
> Hello,
>
> syzbot tried to test the proposed patch but build/boot failed:
>
> patch is already applied
>
>
> Tested on https://github.com/joelagnel/linux.git/test-ashmem commit
> 32f813bb0d06c1e189ac336f8c3c7377f85c71f0 (Wed Jan 24 01:45:04 2018 +0000)
> ashmem: Fix lockdep issue during llseek
>
> compiler: gcc (GCC) 7.1.1 20170620
> Patch is attached.

Right. We probably want:

#syz test: git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
master

Attachment: patch
Description: Binary data