syzbot has bisected this issue to: commit c9be622494c012d56c71e00cb90be841820c3e34 Author: Pavel Begunkov <asml.silence@xxxxxxxxx> Date: Mon Mar 21 22:02:20 2022 +0000 io_uring: remove extra ifs around io_commit_cqring bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=15a04739700000 start commit: b61581ae229d Add linux-next specific files for 20220323 git tree: linux-next final oops: https://syzkaller.appspot.com/x/report.txt?x=17a04739700000 console output: https://syzkaller.appspot.com/x/log.txt?x=13a04739700000 kernel config: https://syzkaller.appspot.com/x/.config?x=def28433baf109ed dashboard link: https://syzkaller.appspot.com/bug?extid=f252f28df734e8521387 syz repro: https://syzkaller.appspot.com/x/repro.syz?x=117d3a43700000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=15538925700000 Reported-by: syzbot+f252f28df734e8521387@xxxxxxxxxxxxxxxxxxxxxxxxx Fixes: c9be622494c0 ("io_uring: remove extra ifs around io_commit_cqring") For information about bisection process see: https://goo.gl/tpsmEJ#bisection