BUG: looking up invalid subclass: 8
turning off the locking correctness validator.
CPU: 1 PID: 8521 Comm: syz-executor713 Not tainted 4.19.113-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
 __dump_stack lib/dump_stack.c:77 [inline]
 dump_stack+0x188/0x20d lib/dump_stack.c:118
 look_up_lock_class kernel/locking/lockdep.c:662 [inline]
 register_lock_class+0x77f/0x16f0 kernel/locking/lockdep.c:748
 __lockdep_init_map+0x2a7/0x5a0 kernel/locking/lockdep.c:3210
 vlan_dev_set_lockdep_class net/8021q/vlan_dev.c:511 [inline]
 vlan_dev_init+0x7c5/0xc80 net/8021q/vlan_dev.c:606
 register_netdevice+0x2d2/0xf50 net/core/dev.c:8637
 register_vlan_dev+0x2f7/0x7b0 net/8021q/vlan.c:172
 vlan_newlink+0x477/0x6d0 net/8021q/vlan_netlink.c:189
 rtnl_newlink+0xf03/0x1440 net/core/rtnetlink.c:3141
 rtnetlink_rcv_msg+0x453/0xaf0 net/core/rtnetlink.c:4777
 netlink_rcv_skb+0x160/0x410 net/netlink/af_netlink.c:2455
 netlink_unicast_kernel net/netlink/af_netlink.c:1318 [inline]
 netlink_unicast+0x4d7/0x6a0 net/netlink/af_netlink.c:1344
 netlink_sendmsg+0x80b/0xcd0 net/netlink/af_netlink.c:1909
 sock_sendmsg_nosec net/socket.c:622 [inline]
 sock_sendmsg+0xcf/0x120 net/socket.c:632
 ___sys_sendmsg+0x803/0x920 net/socket.c:2115
 __sys_sendmsg+0xec/0x1b0 net/socket.c:2153
 do_syscall_64+0xf9/0x620 arch/x86/entry/common.c:293
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x4495d9
Code: e8 ec 0e 03 00 48 83 c4 18 c3 0f 1f 80 00 00 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 0f 83 ab 08 fc ff c3 66 2e 0f 1f 84 00 00 00 00
RSP: 002b:00007f470b56edb8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 00000000006dec48 RCX: 00000000004495d9
RDX: 0000000000000000 RSI: 0000000020000140 RDI: 0000000000000004
RBP: 00000000006dec40 R08: 0000000000000018 R09: 0000000000000000
R10: 0000000000000001 R11: 0000000000000246 R12: 00000000006dec4c
R13: 00007ffe39dc1a6f R14: 00007f470b56f9c0 R15: 00000000006dec4c
NOHZ: local_softirq_pending 08