Re: [syzbot] [f2fs?] general protection fault in f2fs_drop_extent_tree

[Aleksandr Nogikh]

On Wed, Aug 2, 2023 at 2:41 AM syzbot
<syzbot+f4649be1be739e030111@xxxxxxxxxxxxxxxxxxxxxxxxx> wrote:
>
> syzbot suspects this issue was fixed by commit:
>
> commit 458c15dfbce62c35fefd9ca637b20a051309c9f1
> Author: Chao Yu <chao@xxxxxxxxxx>
> Date:   Tue May 23 03:58:22 2023 +0000
>
>     f2fs: don't reset unchangable mount option in f2fs_remount()
>
> bisection log:  https://syzkaller.appspot.com/x/bisect.txt?x=12461d31a80000
> start commit:   a92b7d26c743 Merge tag 'drm-fixes-2023-06-23' of git://ano..
> git tree:       upstream
> kernel config:  https://syzkaller.appspot.com/x/.config?x=2cbd298d0aff1140
> dashboard link: https://syzkaller.appspot.com/bug?extid=f4649be1be739e030111
> syz repro:      https://syzkaller.appspot.com/x/repro.syz?x=1564afb0a80000
> C reproducer:   https://syzkaller.appspot.com/x/repro.c?x=166928c7280000
>
> If the result looks correct, please mark the issue as fixed by replying with:
>
> #syz fix: f2fs: don't reset unchangable mount option in f2fs_remount()

Looks reasonable.
#syz fix: f2fs: don't reset unchangable mount option in f2fs_remount()

>
> For information about bisection process see: https://goo.gl/tpsmEJ#bisection
>