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Date: Wed, 11 Nov 2020 14:34:36 +0100
From: Dmitry Vyukov <dvyukov@...gle.com>
To: syzbot <syzbot+9301f2f33873407d5b33@...kaller.appspotmail.com>,
syzkaller-bugs <syzkaller-bugs@...glegroups.com>,
Linux-MM <linux-mm@...ck.org>,
LKML <linux-kernel@...r.kernel.org>
Cc: "Kirill A. Shutemov" <kirill@...temov.name>
Subject: Re: WARNING in wp_page_copy
On Tue, Mar 24, 2020 at 3:47 AM syzbot
<syzbot+9301f2f33873407d5b33@...kaller.appspotmail.com> wrote:
>
> syzbot suspects this bug was fixed by commit:
>
> commit c3e5ea6ee574ae5e845a40ac8198de1fb63bb3ab
> Author: Kirill A. Shutemov <kirill@...temov.name>
> Date: Fri Mar 6 06:28:32 2020 +0000
>
> mm: avoid data corruption on CoW fault into PFN-mapped VMA
>
> bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=1170c813e00000
> start commit: e31736d9 Merge tag 'nios2-v5.5-rc2' of git://git.kernel.or..
> git tree: upstream
> kernel config: https://syzkaller.appspot.com/x/.config?x=79f79de2a27d3e3d
> dashboard link: https://syzkaller.appspot.com/bug?extid=9301f2f33873407d5b33
> syz repro: https://syzkaller.appspot.com/x/repro.syz?x=10fd9fb1e00000
>
> If the result looks correct, please mark the bug fixed by replying with:
>
> #syz fix: mm: avoid data corruption on CoW fault into PFN-mapped VMA
>
> For information about bisection process see: https://goo.gl/tpsmEJ#bisection
#syz fix: mm: avoid data corruption on CoW fault into PFN-mapped VMA
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