diff --git a/mm/slab.c b/mm/slab.c
index db0db44798c265..328233a724afb6 100644
--- a/mm/slab.c
+++ b/mm/slab.c
@@ -2118,9 +2118,15 @@ __kmem_cache_alias(const char *name, size_t size, size_t align,
 	struct kmem_cache *cachep;
 
 	cachep = find_mergeable(size, align, flags, name, ctor);
-	if (cachep)
+	if (cachep) {
 		cachep->refcount++;
 
+		/*
+		 * Adjust the object sizes so that we clear
+		 * the complete object on kzalloc.
+		 */
+		cachep->object_size = max_t(int, cachep->object_size, size);
+	}
 	return cachep;
 }