unregister_netdevice: waiting for syzkaller0 to become free. Usage count = 2
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:1583
 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_insert_ifa net/ipv4/devinet.c:575 [inline]
 inet_set_ifa net/ipv4/devinet.c:593 [inline]
 devinet_ioctl+0x10a8/0x18e8 net/ipv4/devinet.c:1199
 inet_ioctl+0x328/0x518 net/ipv4/af_inet.c:1008
 sock_do_ioctl+0x100/0x258 net/socket.c:1202
 sock_ioctl+0x234/0x828 net/socket.c:1321
 vfs_ioctl fs/ioctl.c:51 [inline]
 __do_sys_ioctl fs/ioctl.c:870 [inline]
 __se_sys_ioctl fs/ioctl.c:856 [inline]
 __arm64_sys_ioctl+0x14c/0x1c8 fs/ioctl.c:856
 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline]
 invoke_syscall+0x98/0x290 arch/arm64/kernel/syscall.c:52
 el0_svc_common+0x13c/0x258 arch/arm64/kernel/syscall.c:140
 do_el0_svc+0x5c/0x134 arch/arm64/kernel/syscall.c:204