On Sun 11-02-24 05:54:02, syzbot wrote:

syzbot suspects this issue was fixed by commit:

commit 6f861765464f43a71462d52026fbddfc858239a5 Author: Jan Kara jack@suse.cz 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=1764f648180000 start commit: e6fda526d9db Merge tag 'arm64-fixes' of git://git.kernel.o.. git tree: upstream kernel config: https://syzkaller.appspot.com/x/.config?x=1e3d5175079af5a4 dashboard link: https://syzkaller.appspot.com/bug?extid=6e5f2db05775244c73b7 syz repro: https://syzkaller.appspot.com/x/repro.syz?x=16a56679a80000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=14d76b5da80000

If the result looks correct, please mark the issue as fixed by replying with:

Yes, the reproducer seems to be corrupting the image:

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

Honza