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=17547fd4180000 start commit: e42bebf6db29 Merge tag 'efi-fixes-for-v6.6-1' of git://git.. git tree: upstream kernel config: https://syzkaller.appspot.com/x/.config?x=df91a3034fe3f122 dashboard link: https://syzkaller.appspot.com/bug?extid=9cf75dc581fb4307d6dd syz repro: https://syzkaller.appspot.com/x/repro.syz?x=1374a174680000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=12b12928680000 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