RDMA/mana_ib: Fix integer overflow during queue creation

Check queue size during CQ creation for users to prevent
overflow of u32.

Fixes: bec127e ("RDMA/mana_ib: create kernel-level CQs")
Signed-off-by: Konstantin Taranov <kotaranov@microsoft.com>
Link: https://patch.msgid.link/1742312744-14370-1-git-send-email-kotaranov@linux.microsoft.com
Reviewed-by: Long Li <longli@microsoft.com>
Signed-off-by: Leon Romanovsky <leon@kernel.org>

Author: Konstantin Taranov

drivers/infiniband/hw/mana/cq.c

@@ -39,7 +39,8 @@ int mana_ib_create_cq(struct ib_cq *ibcq, const struct ib_cq_init_attr *attr,
 
 		is_rnic_cq = !!(ucmd.flags & MANA_IB_CREATE_RNIC_CQ);
 
-		if (!is_rnic_cq && attr->cqe > mdev->adapter_caps.max_qp_wr) {
+		if ((!is_rnic_cq && attr->cqe > mdev->adapter_caps.max_qp_wr) ||
+		    attr->cqe > U32_MAX / COMP_ENTRY_SIZE) {
 			ibdev_dbg(ibdev, "CQE %d exceeding limit\n", attr->cqe);
 			return -EINVAL;
 		}