syzbot suspects this issue was fixed by commit: commit 0a9a25ca78437b39e691bcc3dc8240455b803d8d Author: Ming Lei <ming.lei@xxxxxxxxxx> Date: Fri Mar 18 13:01:43 2022 +0000 block: let blkcg_gq grab request queue's refcnt bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=1004f05a080000 start commit: d6765985a42a Revert "be2net: disable bh with spin_lock in .. git tree: net kernel config: https://syzkaller.appspot.com/x/.config?x=7ca96a2d153c74b0 dashboard link: https://syzkaller.appspot.com/bug?extid=3ba0493d523d007b3819 syz repro: https://syzkaller.appspot.com/x/repro.syz?x=14c9edc8300000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=172463c8300000 If the result looks correct, please mark the issue as fixed by replying with: #syz fix: block: let blkcg_gq grab request queue's refcnt For information about bisection process see: https://goo.gl/tpsmEJ#bisection