syzbot suspects this issue was fixed by commit: commit c88033efe9a391e72ba6b5df4b01d6e628f4e734 Author: Peter Xu <peterx@xxxxxxxxxx> Date: Mon Apr 22 13:33:11 2024 +0000 mm/userfaultfd: reset ptes when close() for wr-protected ones bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=12f2396b980000 start commit: e67572cd2204 Linux 6.9-rc6 git tree: upstream kernel config: https://syzkaller.appspot.com/x/.config?x=3310e643b6ef5d69 dashboard link: https://syzkaller.appspot.com/bug?extid=5ea2845f44caa77f5543 syz repro: https://syzkaller.appspot.com/x/repro.syz?x=10874a40980000 If the result looks correct, please mark the issue as fixed by replying with: #syz fix: mm/userfaultfd: reset ptes when close() for wr-protected ones For information about bisection process see: https://goo.gl/tpsmEJ#bisection