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=111c20ca180000 start commit: 692b7dc87ca6 Merge tag 'hyperv-fixes-signed-20230619' of g.. git tree: upstream kernel config: https://syzkaller.appspot.com/x/.config?x=24ce1b2abaee24cc dashboard link: https://syzkaller.appspot.com/bug?extid=4dadbee41d087d9c6234 syz repro: https://syzkaller.appspot.com/x/repro.syz?x=1208ab97280000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=1359d897280000 If the result looks correct, please mark the issue as fixed by replying with: #syz fix: fs: Block writes to mounted block devices For information about bisection process see: https://goo.gl/tpsmEJ#bisection