unregister_netdevice: waiting for vcan0 to become free. Usage count = 3
ref_tracker: netdev@ffff8881bfb58700 has 1/2 users at
     j1939_ecu_create_locked+0x1cd/0x400
     j1939_local_ecu_get+0xeb/0x220
     j1939_sk_bind+0x70a/0xc60
     __sys_bind+0x2e3/0x410
     __x64_sys_bind+0x7a/0x90
     do_syscall_64+0x166/0x520
     entry_SYSCALL_64_after_hwframe+0x77/0x7f

ref_tracker: netdev@ffff8881bfb58700 has 1/2 users at
     j1939_netdev_start+0x387/0xb20
     j1939_sk_bind+0x946/0xc60
     __sys_bind+0x2e3/0x410
     __x64_sys_bind+0x7a/0x90
     do_syscall_64+0x166/0x520
     entry_SYSCALL_64_after_hwframe+0x77/0x7f

unregister_netdevice: waiting for lo to become free. Usage count = 5
ref_tracker: netdev@ffff888113dfa700 has 2/4 users at
     dst_init+0xbe/0x470
     dst_alloc+0x12a/0x170
     ip6_pol_route+0xb9d/0x14d0
     fib6_rule_lookup+0x21a/0x6e0
     ip6_route_output_flags+0x364/0x5d0
     ip6_dst_lookup_tail+0x1a1/0x1610
     ip6_dst_lookup_flow+0x89/0x150
     send6+0x4ea/0x920
     wg_socket_send_skb_to_peer+0x111/0x1d0
     wg_packet_handshake_send_worker+0x204/0x370
     process_scheduled_works+0xc3d/0x1630
     worker_thread+0xa47/0xfb0
     kthread+0x38b/0x480
     ret_from_fork+0x514/0xb70
     ret_from_fork_asm+0x1a/0x30

ref_tracker: netdev@ffff888113dfa700 has 1/4 users at
     netdev_get_by_index+0x79/0xb0
     fib6_nh_init+0x285/0x1e40
     ip6_route_info_create_nh+0x16a/0xad0
     addrconf_f6i_alloc+0x3b7/0x630
     ipv6_add_addr+0x59c/0x1110
     add_addr+0x8b/0x2d0
     addrconf_notify+0xb1e/0x1050
     notifier_call_chain+0x1a5/0x3d0
     __dev_notify_flags+0x31e/0x510
     netif_change_flags+0xde/0x1b0
     do_setlink+0xdd6/0x47a0
     rtnl_newlink+0x15b0/0x1c30
     rtnetlink_rcv_msg+0x802/0xc00
     netlink_rcv_skb+0x226/0x4a0
     netlink_unicast+0x7bd/0x940
     netlink_sendmsg+0x813/0xb40

ref_tracker: netdev@ffff888113dfa700 has 1/4 users at
     ipv6_add_dev+0x548/0x1400
     addrconf_notify+0x771/0x1050
     notifier_call_chain+0x1a5/0x3d0
     register_netdevice+0x18a4/0x1eb0
     register_netdev+0x40/0x60
     loopback_net_init+0x75/0x150
     ops_init+0x35d/0x5d0
     setup_net+0x118/0x350
     copy_net_ns+0x53b/0x780
     create_new_namespaces+0x3f0/0x6b0
     unshare_nsproxy_namespaces+0x149/0x190
     ksys_unshare+0x5a7/0x950
     __x64_sys_unshare+0x38/0x50
     do_syscall_64+0x166/0x520
     entry_SYSCALL_64_after_hwframe+0x77/0x7f

