static int cma_resolve_iboe_route(struct rdma_id_private *id_priv)
{
	struct rdma_route *route = &id_priv->id.route;
	struct rdma_addr *addr = &route->addr;
	struct cma_work *work;
	int ret;
	struct net_device *ndev = NULL;


	work = kzalloc(sizeof *work, GFP_KERNEL);
	if (!work)
		return -ENOMEM;

	work->id = id_priv;
	INIT_WORK(&work->work, cma_work_handler);

	route->path_rec = kzalloc(sizeof *route->path_rec, GFP_KERNEL);
	if (!route->path_rec) {
		ret = -ENOMEM;
		goto err1;
	}

	route->num_paths = 1;

	if (addr->dev_addr.bound_dev_if)
		ndev = dev_get_by_index(&init_net, addr->dev_addr.bound_dev_if);
	if (!ndev) {
		ret = -ENODEV;
		goto err2;
	}

	route->path_rec->vlan_id = rdma_vlan_dev_vlan_id(ndev);
	memcpy(route->path_rec->dmac, addr->dev_addr.dst_dev_addr, ETH_ALEN);
	memcpy(route->path_rec->smac, ndev->dev_addr, ndev->addr_len);

	rdma_ip2gid((struct sockaddr *)&id_priv->id.route.addr.src_addr,
		    &route->path_rec->sgid);
	rdma_ip2gid((struct sockaddr *)&id_priv->id.route.addr.dst_addr,
		    &route->path_rec->dgid);

	route->path_rec->hop_limit = 1;
	route->path_rec->reversible = 1;
	route->path_rec->pkey = cpu_to_be16(0xffff);
	route->path_rec->mtu_selector = IB_SA_EQ;
	route->path_rec->sl = iboe_tos_to_sl(ndev, id_priv->tos);
	route->path_rec->mtu = iboe_get_mtu(ndev->mtu);
	route->path_rec->rate_selector = IB_SA_EQ;
	route->path_rec->rate = iboe_get_rate(ndev);
	dev_put(ndev);
	route->path_rec->packet_life_time_selector = IB_SA_EQ;
	route->path_rec->packet_life_time = CMA_IBOE_PACKET_LIFETIME;
	if (!route->path_rec->mtu) {
		ret = -EINVAL;
		goto err2;
	}

	work->old_state = RDMA_CM_ROUTE_QUERY;
	work->new_state = RDMA_CM_ROUTE_RESOLVED;
	work->event.event = RDMA_CM_EVENT_ROUTE_RESOLVED;
	work->event.status = 0;

	queue_work(cma_wq, &work->work);

	return 0;

err2:
	kfree(route->path_rec);
	route->path_rec = NULL;
err1:
	kfree(work);
	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.