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=13d8b4f8180000 start commit: 4bbdb725a36b Merge tag 'iommu-updates-v6.7' of git://git.k.. git tree: upstream kernel config: https://syzkaller.appspot.com/x/.config?x=beb32a598fd79db9 dashboard link: https://syzkaller.appspot.com/bug?extid=7d78ccda251bc1bdbaed syz repro: https://syzkaller.appspot.com/x/repro.syz?x=1284ed04e80000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=1590870f680000 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