diff --git a/include/rdma/ib_verbs.h b/include/rdma/ib_verbs.h
index 14c62e9b60e3df5d6dd970eb2105188738f58580..c1c1a61d81f6eff77e84549bf92eb6d09b0c6639 100644
--- a/include/rdma/ib_verbs.h
+++ b/include/rdma/ib_verbs.h
@@ -3870,6 +3870,9 @@ static inline int ib_check_mr_access(int flags)
 	    !(flags & IB_ACCESS_LOCAL_WRITE))
 		return -EINVAL;
 
+	if (flags & ~IB_ACCESS_SUPPORTED)
+		return -EINVAL;
+
 	return 0;
 }