RBP: 0000000000000002 R08: 00007ffc91c02f16 R09: 00007ffc91c031c0
R10: 0000000000000002 R11: 0000000000000246 R12: 00007ffc91c03198
R13: 00007ffc91c031e0 R14: 0000000000000009 R15: 431bde82d7b634db
 </TASK>
unregister_netdevice: waiting for syz_tun to become free. Usage count = 2
leaked reference.
 __netdev_tracker_alloc include/linux/netdevice.h:4008 [inline]
 netdev_tracker_alloc include/linux/netdevice.h:4020 [inline]
 fib6_nh_init+0x812/0x21e0 net/ipv6/route.c:3621
 ip6_route_info_create+0x9c4/0x12c0 net/ipv6/route.c:3799
 ip6_route_add+0x22/0x120 net/ipv6/route.c:3843
 addrconf_add_mroute net/ipv6/addrconf.c:2488 [inline]
 addrconf_add_dev+0x350/0x500 net/ipv6/addrconf.c:2506
 addrconf_dev_config net/ipv6/addrconf.c:3381 [inline]
 addrconf_init_auto_addrs+0x88e/0xe60 net/ipv6/addrconf.c:3468
 addrconf_notify+0xade/0xf60 net/ipv6/addrconf.c:3641
 notifier_call_chain kernel/notifier.c:87 [inline]
 raw_notifier_call_chain+0xd0/0x170 kernel/notifier.c:455
 __dev_notify_flags+0x304/0x610
 dev_change_flags+0xe7/0x190 net/core/dev.c:8626
 do_setlink+0xf5d/0x3e60 net/core/rtnetlink.c:2794
 __rtnl_newlink net/core/rtnetlink.c:3559 [inline]
 rtnl_newlink+0x16f7/0x1fa0 net/core/rtnetlink.c:3606
 rtnetlink_rcv_msg+0x776/0xf00 net/core/rtnetlink.c:6103
 netlink_rcv_skb+0x1cd/0x410 net/netlink/af_netlink.c:2525
 netlink_unicast_kernel net/netlink/af_netlink.c:1328 [inline]
 netlink_unicast+0x7bf/0x990 net/netlink/af_netlink.c:1354
 netlink_sendmsg+0xa26/0xd60 net/netlink/af_netlink.c:1903
 sock_sendmsg_nosec net/socket.c:716 [inline]
 sock_sendmsg net/socket.c:736 [inline]
 __sys_sendto+0x471/0x5f0 net/socket.c:2117