unregister_netdevice: waiting for dummy0 to become free. Usage count = 4
leaked reference.
 __netdev_tracker_alloc include/linux/netdevice.h:4049 [inline]
 netdev_tracker_alloc include/linux/netdevice.h:4061 [inline]
 fib6_nh_init+0x604/0x1a08 net/ipv6/route.c:3667
 ip6_route_info_create+0x7d0/0xf9c net/ipv6/route.c:3848
 addrconf_f6i_alloc+0x1a8/0x36c net/ipv6/route.c:4623
 ipv6_add_addr+0x3d4/0xd74 net/ipv6/addrconf.c:1121
 addrconf_add_linklocal+0x23c/0x60c net/ipv6/addrconf.c:3257
 addrconf_addr_gen+0x3ec/0x500 net/ipv6/addrconf.c:3388
 addrconf_init_auto_addrs+0x5a8/0x91c net/ipv6/addrconf.c:-1
 addrconf_notify+0x8cc/0xc98 net/ipv6/addrconf.c:3685
 notifier_call_chain kernel/notifier.c:87 [inline]
 raw_notifier_call_chain+0xd8/0x168 kernel/notifier.c:455
 call_netdevice_notifiers_info net/core/dev.c:2014 [inline]
 call_netdevice_notifiers_extack net/core/dev.c:2052 [inline]
 call_netdevice_notifiers net/core/dev.c:2066 [inline]
 __dev_notify_flags+0x260/0x490 net/core/dev.c:8715
 dev_change_flags+0xd0/0x15c net/core/dev.c:8753
 do_setlink+0x9d0/0x2158 net/core/rtnetlink.c:2837
 __rtnl_newlink net/core/rtnetlink.c:3614 [inline]
 rtnl_newlink+0x142c/0x1af0 net/core/rtnetlink.c:3661
 rtnetlink_rcv_msg+0x694/0xcc4 net/core/rtnetlink.c:6158
 netlink_rcv_skb+0x220/0x3ec net/netlink/af_netlink.c:2516
 rtnetlink_rcv+0x28/0x38 net/core/rtnetlink.c:6176
leaked reference.
 __netdev_tracker_alloc include/linux/netdevice.h:4049 [inline]
 netdev_tracker_alloc include/linux/netdevice.h:4061 [inline]
 fib6_nh_init+0x604/0x1a08 net/ipv6/route.c:3667
 ip6_route_info_create+0x7d0/0xf9c net/ipv6/route.c:3848
 addrconf_f6i_alloc+0x1a8/0x36c net/ipv6/route.c:4623
 fixup_permanent_addr net/ipv6/addrconf.c:3528 [inline]
 addrconf_permanent_addr+0x208/0x870 net/ipv6/addrconf.c:3567
 addrconf_notify+0x7b8/0xc98 net/ipv6/addrconf.c:3639
 notifier_call_chain kernel/notifier.c:87 [inline]
 raw_notifier_call_chain+0xd8/0x168 kernel/notifier.c:455
 call_netdevice_notifiers_info net/core/dev.c:2014 [inline]
 call_netdevice_notifiers_extack net/core/dev.c:2052 [inline]
 call_netdevice_notifiers net/core/dev.c:2066 [inline]
 __dev_notify_flags+0x260/0x490 net/core/dev.c:8715
 dev_change_flags+0xd0/0x15c net/core/dev.c:8753
 do_setlink+0x9d0/0x2158 net/core/rtnetlink.c:2837
 __rtnl_newlink net/core/rtnetlink.c:3614 [inline]
 rtnl_newlink+0x142c/0x1af0 net/core/rtnetlink.c:3661
 rtnetlink_rcv_msg+0x694/0xcc4 net/core/rtnetlink.c:6158
 netlink_rcv_skb+0x220/0x3ec net/netlink/af_netlink.c:2516
 rtnetlink_rcv+0x28/0x38 net/core/rtnetlink.c:6176
 netlink_unicast_kernel net/netlink/af_netlink.c:1318 [inline]
 netlink_unicast+0x5fc/0x80c net/netlink/af_netlink.c:1344
 netlink_sendmsg+0x6f0/0x9d8 net/netlink/af_netlink.c:1877
 sock_sendmsg_nosec net/socket.c:718 [inline]
 __sock_sendmsg net/socket.c:730 [inline]
 __sys_sendto+0x324/0x440 net/socket.c:2153
leaked reference.
 __netdev_tracker_alloc include/linux/netdevice.h:4049 [inline]
 netdev_tracker_alloc+0x68/0xb4 include/linux/netdevice.h:4061
 fib_create_info+0x127c/0x1e98 net/ipv4/fib_semantics.c:1552
 fib_table_insert+0xb0/0x13fc net/ipv4/fib_trie.c:1217
 fib_magic+0x26c/0x344 net/ipv4/fib_frontend.c:1118
 fib_add_ifaddr+0x114/0x500 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+0xf4/0x19c kernel/notifier.c:382
 __inet_insert_ifa+0x88c/0xa34 net/ipv4/devinet.c:568
 inet_rtm_newaddr+0x8b4/0x15bc net/ipv4/devinet.c:970
 rtnetlink_rcv_msg+0x694/0xcc4 net/core/rtnetlink.c:6158
 netlink_rcv_skb+0x220/0x3ec net/netlink/af_netlink.c:2516
 rtnetlink_rcv+0x28/0x38 net/core/rtnetlink.c:6176
 netlink_unicast_kernel net/netlink/af_netlink.c:1318 [inline]
 netlink_unicast+0x5fc/0x80c net/netlink/af_netlink.c:1344
 netlink_sendmsg+0x6f0/0x9d8 net/netlink/af_netlink.c:1877
 sock_sendmsg_nosec net/socket.c:718 [inline]
 __sock_sendmsg net/socket.c:730 [inline]
 __sys_sendto+0x324/0x440 net/socket.c:2153
 __do_sys_sendto net/socket.c:2165 [inline]
 __se_sys_sendto net/socket.c:2161 [inline]
 __arm64_sys_sendto+0xe4/0x104 net/socket.c:2161