diff --git a/drivers/infiniband/core/umem.c b/drivers/infiniband/core/umem.c
index 38acb3c..04f3c0d 100644
--- a/drivers/infiniband/core/umem.c
+++ b/drivers/infiniband/core/umem.c
@@ -175,7 +175,7 @@
 
 	cur_base = addr & PAGE_MASK;
 
-	if (npages == 0) {
+	if (npages == 0 || npages > UINT_MAX) {
 		ret = -EINVAL;
 		goto out;
 	}