BUG: looking up invalid subclass: 8 turning off the locking correctness validator. CPU: 1 PID: 9073 Comm: syz-executor056 Not tainted 4.14.258-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:17 [inline] dump_stack+0x1b2/0x281 lib/dump_stack.c:58 look_up_lock_class kernel/locking/lockdep.c:673 [inline] register_lock_class+0x660/0x1180 kernel/locking/lockdep.c:756 __lockdep_init_map+0x263/0x560 kernel/locking/lockdep.c:3277 vlan_dev_set_lockdep_class net/8021q/vlan_dev.c:509 [inline] vlan_dev_init+0x745/0xc00 net/8021q/vlan_dev.c:604 register_netdevice+0x291/0xe40 net/core/dev.c:7598 register_vlan_dev+0x287/0x6d0 net/8021q/vlan.c:168 vlan_newlink+0x3b9/0x510 net/8021q/vlan_netlink.c:165 rtnl_newlink+0xfab/0x1860 net/core/rtnetlink.c:2728 rtnetlink_rcv_msg+0x3be/0xb10 net/core/rtnetlink.c:4320 netlink_rcv_skb+0x125/0x390 net/netlink/af_netlink.c:2441 netlink_unicast_kernel net/netlink/af_netlink.c:1294 [inline] netlink_unicast+0x437/0x610 net/netlink/af_netlink.c:1320 netlink_sendmsg+0x638/0xb90 net/netlink/af_netlink.c:1886 sock_sendmsg_nosec net/socket.c:646 [inline] sock_sendmsg+0xb5/0x100 net/socket.c:656 ___sys_sendmsg+0x6c8/0x800 net/socket.c:2062 __sys_sendmsg+0xa3/0x120 net/socket.c:2096 SYSC_sendmsg net/socket.c:2107 [inline] SyS_sendmsg+0x27/0x40 net/socket.c:2103 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292 entry_SYSCALL_64_after_hwframe+0x46/0xbb RIP: 0033:0x7f16cab808d9 RSP: 002b:00007f16cab2e318 EFLAGS: 00000246 ORIG_RAX: 000000000000002e RAX: ffffffffffffffda RBX: 00007f16cac094e8 RCX: 00007f16cab808d9 RDX: 0000000000000000 RSI: 0000000020000140 RDI: 0000000000000004 RBP: 00007f16cac094e0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00007f16cabd64a4 R13: 00007ffee1f989cf R14: 00007f16cab2e400 R15: 0000000000022000 Dead loop on virtual device bridge_slave_1, fix it urgently! Dead loop on virtual device bridge_slave_0, fix it urgently! Dead loop on virtual device bridge_slave_1, fix it urgently! Dead loop on virtual device bond_slave_1, fix it urgently! Dead loop on virtual device bridge_slave_0, fix it urgently! Dead loop on virtual device bond_slave_0, fix it urgently! Dead loop on virtual device veth0_vlan, fix it urgently! Dead loop on virtual device veth0_vlan, fix it urgently! Dead loop on virtual device veth1_vlan, fix it urgently! Dead loop on virtual device veth1_vlan, fix it urgently! net_ratelimit: 2305 callbacks suppressed Dead loop on virtual device macvlan1, fix it urgently! Dead loop on virtual device vlan129, fix it urgently! Dead loop on virtual device veth1_to_bridge, fix it urgently! Dead loop on virtual device vlan151, fix it urgently! Dead loop on virtual device vlan195, fix it urgently! Dead loop on virtual device vlan1, fix it urgently! Dead loop on virtual device vlan213, fix it urgently! Dead loop on virtual device vlan175, fix it urgently! Dead loop on virtual device vlan181, fix it urgently! Dead loop on virtual device geneve1, fix it urgently!