Re: [syzbot] WARNING in emulate_vsyscall

[Dmitry Vyukov]

On Wed, 27 Oct 2021 at 06:20, syzbot
<syzbot+2698183e871d8a137f9d@xxxxxxxxxxxxxxxxxxxxxxxxx> wrote:
>
> syzbot suspects this issue was fixed by commit:
>
> commit d4ffd5df9d18031b6a53f934388726775b4452d3
> Author: Jiashuo Liang <liangjs@xxxxxxxxxx>
> Date:   Fri Jul 30 03:01:52 2021 +0000
>
>     x86/fault: Fix wrong signal when vsyscall fails with pkey
>
> bisection log:  https://syzkaller.appspot.com/x/bisect.txt?x=11bb466f300000
> start commit:   009c9aa5be65 Linux 5.13-rc6
> git tree:       upstream
> kernel config:  https://syzkaller.appspot.com/x/.config?x=7ca96a2d153c74b0
> dashboard link: https://syzkaller.appspot.com/bug?extid=2698183e871d8a137f9d
> syz repro:      https://syzkaller.appspot.com/x/repro.syz?x=10e1a704300000
> C reproducer:   https://syzkaller.appspot.com/x/repro.c?x=125a92d0300000
>
> If the result looks correct, please mark the issue as fixed by replying with:
>
> #syz fix: x86/fault: Fix wrong signal when vsyscall fails with pkey
>
> For information about bisection process see: https://goo.gl/tpsmEJ#bisection

Looks plausible:

#syz fix: x86/fault: Fix wrong signal when vsyscall fails with pkey