Re: [syzbot] [ntfs3?] BUG: unable to handle kernel NULL pointer dereference in ntfs_sparse_cluster

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On Wed, 1 Feb 2023 at 00:05, syzbot
<syzbot+deb631beeb93bdb2df4c@xxxxxxxxxxxxxxxxxxxxxxxxx> wrote:
>
> syzbot suspects this issue was fixed by commit:
>
> commit c380b52f6c5702cc4bdda5e6d456d6c19a201a0b
> Author: Konstantin Komarov <almaz.alexandrovich@xxxxxxxxxxxxxxxxxxxx>
> Date:   Fri Oct 7 11:02:36 2022 +0000
>
>     fs/ntfs3: Change new sparse cluster processing
>
> bisection log:  https://syzkaller.appspot.com/x/bisect.txt?x=1377b979480000
> start commit:   e2ca6ba6ba01 Merge tag 'mm-stable-2022-12-13' of git://git..
> git tree:       upstream
> kernel config:  https://syzkaller.appspot.com/x/.config?x=276eb8ff64eb2c27
> dashboard link: https://syzkaller.appspot.com/bug?extid=deb631beeb93bdb2df4c
> syz repro:      https://syzkaller.appspot.com/x/repro.syz?x=10d8601b880000
> C reproducer:   https://syzkaller.appspot.com/x/repro.c?x=17a09c93880000
>
> If the result looks correct, please mark the issue as fixed by replying with:
>
> #syz fix: fs/ntfs3: Change new sparse cluster processing
>
> For information about bisection process see: https://goo.gl/tpsmEJ#bisection

Looks reasonable, let's close the bug so that syzbot reports similar
bugs in future:

#syz fix: fs/ntfs3: Change new sparse cluster processing




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