syzbot suspects this issue was fixed by commit: commit 396d7f23adf9e8c436dd81a69488b5b6a865acf8 Author: Vlad Buslov <vladbu@xxxxxxxxxx> Date: Tue Feb 16 16:22:00 2021 +0000 net: sched: fix police ext initialization bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=13dc3caed00000 start commit: 14e8e0f6 tcp: shrink inet_connection_sock icsk_mtup enable.. git tree: net-next kernel config: https://syzkaller.appspot.com/x/.config?x=ac6e76902c1abb76 dashboard link: https://syzkaller.appspot.com/bug?extid=a2ec7a7fb2331091aecf syz repro: https://syzkaller.appspot.com/x/repro.syz?x=114d33d8d00000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=12610ac4d00000 If the result looks correct, please mark the issue as fixed by replying with: #syz fix: net: sched: fix police ext initialization For information about bisection process see: https://goo.gl/tpsmEJ#bisection