syzbot suspects this issue was fixed by commit:
commit 0766ec82e5fb26fc5dc6d592bc61865608bdc651
Author: Stephen Brennan [off-list ref]
Date: Wed Sep 1 17:51:41 2021 +0000
namei: Fix use after free in kern_path_locked
bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=14b29973300000
start commit: 7c60610d4767 Linux 5.14-rc6
git tree: upstream
kernel config: https://syzkaller.appspot.com/x/.config?x=f61012d0b1cd846f
dashboard link: https://syzkaller.appspot.com/bug?extid=a06c3db558cbb33d7ff9
syz repro: https://syzkaller.appspot.com/x/repro.syz?x=147f96ee300000
C reproducer: https://syzkaller.appspot.com/x/repro.c?x=112b3629300000
If the result looks correct, please mark the issue as fixed by replying with:
#syz fix: namei: Fix use after free in kern_path_locked
For information about bisection process see: https://goo.gl/tpsmEJ#bisection