unregister_netdevice: waiting for vlan1 to become free. Usage count = 2
leaked reference.
 __netdev_tracker_alloc include/linux/netdevice.h:4051 [inline]
 netdev_tracker_alloc+0x68/0xb0 include/linux/netdevice.h:4063
 fib_create_info+0x1990/0x1e58 net/ipv4/fib_semantics.c:1552
 fib_table_insert+0xac/0x13a8 net/ipv4/fib_trie.c:1217
 fib_magic+0x26c/0x344 net/ipv4/fib_frontend.c:1118
 fib_add_ifaddr+0x118/0x4f8 net/ipv4/fib_frontend.c:1140
 fib_inetaddr_event+0x12c/0x1f8 net/ipv4/fib_frontend.c:1454
 notifier_call_chain kernel/notifier.c:87 [inline]
 blocking_notifier_call_chain+0xf0/0x198 kernel/notifier.c:382
 __inet_insert_ifa+0x85c/0xa10 net/ipv4/devinet.c:568
 inet_rtm_newaddr+0x8a0/0x15b0 net/ipv4/devinet.c:970
 rtnetlink_rcv_msg+0x698/0xcdc net/core/rtnetlink.c:6150
 netlink_rcv_skb+0x218/0x3e8 net/netlink/af_netlink.c:2511
 rtnetlink_rcv+0x28/0x38 net/core/rtnetlink.c:6168
 netlink_unicast_kernel net/netlink/af_netlink.c:1318 [inline]
 netlink_unicast+0x60c/0x814 net/netlink/af_netlink.c:1344
 netlink_sendmsg+0x6f4/0x9c0 net/netlink/af_netlink.c:1872
 sock_sendmsg_nosec net/socket.c:718 [inline]
 __sock_sendmsg net/socket.c:730 [inline]
 __sys_sendto+0x324/0x440 net/socket.c:2152
 __do_sys_sendto net/socket.c:2164 [inline]
 __se_sys_sendto net/socket.c:2160 [inline]
 __arm64_sys_sendto+0xd8/0xf8 net/socket.c:2160