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=17e6fb5be80000 start commit: 51f269a6ecc7 Merge tag 'probes-fixes-6.4-rc4' of git://git.. git tree: upstream kernel config: https://syzkaller.appspot.com/x/.config?x=162cf2103e4a7453 dashboard link: https://syzkaller.appspot.com/bug?extid=4654552e088ed458b10d syz repro: https://syzkaller.appspot.com/x/repro.syz?x=1177c895280000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=17f4b2a5280000 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