static int __init xen_blkif_init(void)
{
	int rc = 0;

	if (!xen_domain())
		return -ENODEV;

	rc = xen_blkif_interface_init();
	if (rc)
		goto failed_init;

	rc = xen_blkif_xenbus_init();
	if (rc)
		goto failed_init;

 failed_init:
	return rc;
}

The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly.