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=15d6414b980000 start commit: 4d6d4c7f541d Merge tag 'linux-kselftest-fixes-6.4-rc3' of .. git tree: upstream kernel config: https://syzkaller.appspot.com/x/.config?x=94af80bb8ddd23c4 dashboard link: https://syzkaller.appspot.com/bug?extid=f1521383cec5f7baaa94 syz repro: https://syzkaller.appspot.com/x/repro.syz?x=13385bd6280000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=11c11186280000 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