r0 = socket$inet(0x2, 0x2, 0x0)
ioctl$sock_inet_SIOCSARP(r0, 0x8955, &(0x7f0000001780)={{0x2, 0x0, @loopback}, {}, 0xa62e322f118f4506, {0x2, 0x0, @empty}, 'syz_tun\x00'})