static void cmdproc_thread_cleanup(void *arg)
{
	struct tcmu_device *dev = arg;
	struct tcmur_handler *rhandler = tcmu_get_runner_handler(dev);

	rhandler->close(dev);
}

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.