static int cma_send_sidr_rep(struct rdma_id_private *id_priv,
			     enum ib_cm_sidr_status status, u32 qkey,
			     const void *private_data, int private_data_len)
{
	struct ib_cm_sidr_rep_param rep;
	int ret;

	memset(&rep, 0, sizeof rep);
	rep.status = status;
	if (status == IB_SIDR_SUCCESS) {
		ret = cma_set_qkey(id_priv, qkey);
		if (ret)
			return ret;
		rep.qp_num = id_priv->qp_num;
		rep.qkey = id_priv->qkey;
	}
	rep.private_data = private_data;
	rep.private_data_len = private_data_len;

	return ib_send_cm_sidr_rep(id_priv->cm_id.ib, &rep);
}

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.