static int cm_issue_drep(struct cm_port *port,
			 struct ib_mad_recv_wc *mad_recv_wc)
{
	struct ib_mad_send_buf *msg = NULL;
	struct cm_dreq_msg *dreq_msg;
	struct cm_drep_msg *drep_msg;
	int ret;

	ret = cm_alloc_response_msg(port, mad_recv_wc, &msg);
	if (ret)
		return ret;

	dreq_msg = (struct cm_dreq_msg *) mad_recv_wc->recv_buf.mad;
	drep_msg = (struct cm_drep_msg *) msg->mad;

	cm_format_mad_hdr(&drep_msg->hdr, CM_DREP_ATTR_ID, dreq_msg->hdr.tid);
	drep_msg->remote_comm_id = dreq_msg->local_comm_id;
	drep_msg->local_comm_id = dreq_msg->remote_comm_id;

	ret = ib_post_send_mad(msg, NULL);
	if (ret)
		cm_free_msg(msg);

	return ret;
}

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.