diff --git a/mm/slub.c b/mm/slub.c
index 0a216aa..4996fc7 100644
--- a/mm/slub.c
+++ b/mm/slub.c
@@ -3345,6 +3345,9 @@
 {
 	struct kmem_cache *s;
 
+	if (WARN_ON(!name))
+		return NULL;
+
 	down_write(&slub_lock);
 	s = find_mergeable(size, align, flags, name, ctor);
 	if (s) {