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=14c5b3f0180000 start commit: a4aebe936554 posix-timers: Get rid of [COMPAT_]SYS_NI() uses git tree: upstream kernel config: https://syzkaller.appspot.com/x/.config?x=671af399e2dac0e3 dashboard link: https://syzkaller.appspot.com/bug?extid=5184326923f180b9d11a syz repro: https://syzkaller.appspot.com/x/repro.syz?x=10a4c8cee80000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=17a59e11e80000 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