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=1010d154180000 start commit: 95c8a35f1c01 Merge tag 'mm-hotfixes-stable-2024-01-05-11-3.. git tree: upstream kernel config: https://syzkaller.appspot.com/x/.config?x=247b5a935d307ee5 dashboard link: https://syzkaller.appspot.com/bug?extid=daa1128e28d3c3961cb2 syz repro: https://syzkaller.appspot.com/x/repro.syz?x=14562761e80000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=1089280ee80000 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