static bool match_endpoint(struct usb_endpoint_descriptor *epd,
		struct usb_endpoint_descriptor **bulk_in,
		struct usb_endpoint_descriptor **bulk_out,
		struct usb_endpoint_descriptor **int_in,
		struct usb_endpoint_descriptor **int_out)
{
	switch (usb_endpoint_type(epd)) {
	case USB_ENDPOINT_XFER_BULK:
		if (usb_endpoint_dir_in(epd)) {
			if (bulk_in && !*bulk_in) {
				*bulk_in = epd;
				break;
			}
		} else {
			if (bulk_out && !*bulk_out) {
				*bulk_out = epd;
				break;
			}
		}

		return false;
	case USB_ENDPOINT_XFER_INT:
		if (usb_endpoint_dir_in(epd)) {
			if (int_in && !*int_in) {
				*int_in = epd;
				break;
			}
		} else {
			if (int_out && !*int_out) {
				*int_out = epd;
				break;
			}
		}

		return false;
	default:
		return false;
	}

	return (!bulk_in || *bulk_in) && (!bulk_out || *bulk_out) &&
			(!int_in || *int_in) && (!int_out || *int_out);
}

The product does not properly control the allocation and maintenance of a limited resource, thereby enabling an actor to influence the amount of resources consumed, eventually leading to the exhaustion of available resources.