Re: kernel BUG at fs/reiserfs/prints.c:LINE!

[Dmitry Vyukov]

On Fri, Jan 8, 2021 at 12:40 PM syzbot
<syzbot+1541a3226994c0781b29@xxxxxxxxxxxxxxxxxxxxxxxxx> wrote:
>
> syzbot suspects this issue was fixed by commit:
>
> commit d24396c5290ba8ab04ba505176874c4e04a2d53c
> Author: Rustam Kovhaev <rkovhaev@xxxxxxxxx>
> Date:   Sun Nov 1 14:09:58 2020 +0000
>
>     reiserfs: add check for an invalid ih_entry_count
>
> bisection log:  https://syzkaller.appspot.com/x/bisect.txt?x=1731e8f7500000
> start commit:   521b619a Merge tag 'linux-kselftest-kunit-fixes-5.10-rc3' ..
> git tree:       upstream
> kernel config:  https://syzkaller.appspot.com/x/.config?x=4e93228e2f17fb12
> dashboard link: https://syzkaller.appspot.com/bug?extid=1541a3226994c0781b29
> syz repro:      https://syzkaller.appspot.com/x/repro.syz?x=1446e7a8500000
> C reproducer:   https://syzkaller.appspot.com/x/repro.c?x=15c56f5c500000
>
> If the result looks correct, please mark the issue as fixed by replying with:
>
> #syz fix: reiserfs: add check for an invalid ih_entry_count
>
> For information about bisection process see: https://goo.gl/tpsmEJ#bisection

Looks realistic

#syz fix: reiserfs: add check for an invalid ih_entry_count