diff --git a/mm/mempolicy.c b/mm/mempolicy.c
index 172abff..bb54b88c 100644
--- a/mm/mempolicy.c
+++ b/mm/mempolicy.c
@@ -955,6 +955,11 @@
 		goto out;
 	}
 
+	if (!nodes_subset(new, node_online_map)) {
+		err = -EINVAL;
+		goto out;
+	}
+
 	err = security_task_movememory(task);
 	if (err)
 		goto out;