Re: [syzbot] [hfs] general protection fault in tomoyo_check_acl (3)

[Jan Kara]

On Wed 10-01-24 22:44:04, 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=15135c0be80000
> start commit:   a901a3568fd2 Merge tag 'iomap-6.5-merge-1' of git://git.ke..
> git tree:       upstream
> kernel config:  https://syzkaller.appspot.com/x/.config?x=7406f415f386e786
> dashboard link: https://syzkaller.appspot.com/bug?extid=28aaddd5a3221d7fd709
> syz repro:      https://syzkaller.appspot.com/x/repro.syz?x=17b5bb80a80000
> C reproducer:   https://syzkaller.appspot.com/x/repro.c?x=10193ee7280000
> 
> If the result looks correct, please mark the issue as fixed by replying with: 

Makes some sense since fs cannot be corrupted by anybody while it is
mounted. I just don't see how the reproducer would be corrupting the
image... Still probably:

#syz fix: fs: Block writes to mounted block devices

and we'll see if syzbot can find new ways to tickle some similar problem.

								Honza
-- 
Jan Kara <jack@xxxxxxxx>
SUSE Labs, CR