Re: [syzbot] [xfs?] WARNING in xfs_bmapi_convert_delalloc

From: Dave Chinner
Date: Wed Feb 07 2024 - 16:18:13 EST


On Tue, Feb 06, 2024 at 10:02:05PM -0800, syzbot wrote:
> syzbot suspects this issue was fixed by commit:
>
> commit 6f861765464f43a71462d52026fbddfc858239a5
> Author: Jan Kara <jack@xxxxxxx>
> Date: Wed Nov 1 17:43:10 2023 +0000
>
> fs: Block writes to mounted block devices
>
> bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=12b0ad7be80000
> start commit: e8c127b05766 Merge tag 'net-6.6-rc6' of git://git.kernel.o..
> git tree: upstream
> kernel config: https://syzkaller.appspot.com/x/.config?x=11e478e28144788c
> dashboard link: https://syzkaller.appspot.com/bug?extid=53b443b5c64221ee8bad
> syz repro: https://syzkaller.appspot.com/x/repro.syz?x=14a6f291680000
> C reproducer: https://syzkaller.appspot.com/x/repro.c?x=116bc355680000
>
> If the result looks correct, please mark the issue as fixed by replying with:
>
> #syz fix: fs: Block writes to mounted block devices

For real? The test doesn't even open a mounted block device for
writes...

-Dave.
--
Dave Chinner
david@xxxxxxxxxxxxx