diff --git a/drivers/infiniband/hw/mlx5/cq.c b/drivers/infiniband/hw/mlx5/cq.c
index 92ddae101ecc..44fec25ace65 100644
--- a/drivers/infiniband/hw/mlx5/cq.c
+++ b/drivers/infiniband/hw/mlx5/cq.c
@@ -763,7 +763,8 @@ struct ib_cq *mlx5_ib_create_cq(struct ib_device *ibdev,
 	if (attr->flags)
 		return ERR_PTR(-EINVAL);
 
-	if (entries < 0)
+	if (entries < 0 ||
+	    (entries > (1 << MLX5_CAP_GEN(dev->mdev, log_max_cq_sz))))
 		return ERR_PTR(-EINVAL);
 
 	entries = roundup_pow_of_two(entries + 1);