syzbot has bisected this issue to:
commit 91eac1c69c202d9dad8bf717ae5b92db70bfe5cf
Author: Jens Axboe <axboe@xxxxxxxxx>
Date: Wed Mar 16 22:59:10 2022 +0000
io_uring: cache poll/double-poll state with a request flag
bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=1280c825700000
start commit: b47d5a4f6b8d Merge tag 'audit-pr-20220321' of git://git.ke..
git tree: upstream
final oops: https://syzkaller.appspot.com/x/report.txt?x=1180c825700000
console output: https://syzkaller.appspot.com/x/log.txt?x=1680c825700000
kernel config: https://syzkaller.appspot.com/x/.config?x=63af44f0631a5c3a
dashboard link: https://syzkaller.appspot.com/bug?extid=950cee6d91e62329be2c
syz repro: https://syzkaller.appspot.com/x/repro.syz?x=14506ddb700000
C reproducer: https://syzkaller.appspot.com/x/repro.c?x=139b2093700000
Reported-by: syzbot+950cee6d91e62329be2c@xxxxxxxxxxxxxxxxxxxxxxxxx
Fixes: 91eac1c69c20 ("io_uring: cache poll/double-poll state with a request flag")
For information about bisection process see: https://goo.gl/tpsmEJ#bisection
