diff --git a/mm/slub.c b/mm/slub.c
index a77f354f8325..fede2121ec1f 100644
--- a/mm/slub.c
+++ b/mm/slub.c
@@ -756,6 +756,50 @@ static inline bool slab_update_freelist(struct kmem_cache *s, struct slab *slab,
 	return false;
 }
 
+/*
+ * kmalloc caches has fixed sizes (mostly power of 2), and kmalloc() API
+ * family will round up the real request size to these fixed ones, so
+ * there could be an extra area than what is requested. Save the original
+ * request size in the meta data area, for better debug and sanity check.
+ */
+static inline void set_orig_size(struct kmem_cache *s,
+				void *object, unsigned int orig_size)
+{
+	void *p = kasan_reset_tag(object);
+	unsigned int kasan_meta_size;
+
+	if (!slub_debug_orig_size(s))
+		return;
+
+	/*
+	 * KASAN can save its free meta data inside of the object at offset 0.
+	 * If this meta data size is larger than 'orig_size', it will overlap
+	 * the data redzone in [orig_size+1, object_size]. Thus, we adjust
+	 * 'orig_size' to be as at least as big as KASAN's meta data.
+	 */
+	kasan_meta_size = kasan_metadata_size(s, true);
+	if (kasan_meta_size > orig_size)
+		orig_size = kasan_meta_size;
+
+	p += get_info_end(s);
+	p += sizeof(struct track) * 2;
+
+	*(unsigned int *)p = orig_size;
+}
+
+static inline unsigned int get_orig_size(struct kmem_cache *s, void *object)
+{
+	void *p = kasan_reset_tag(object);
+
+	if (!slub_debug_orig_size(s))
+		return s->object_size;
+
+	p += get_info_end(s);
+	p += sizeof(struct track) * 2;
+
+	return *(unsigned int *)p;
+}
+
 #ifdef CONFIG_SLUB_DEBUG
 static unsigned long object_map[BITS_TO_LONGS(MAX_OBJS_PER_PAGE)];
 static DEFINE_SPINLOCK(object_map_lock);
@@ -985,50 +1029,6 @@ static void print_slab_info(const struct slab *slab)
 	       &slab->__page_flags);
 }
 
-/*
- * kmalloc caches has fixed sizes (mostly power of 2), and kmalloc() API
- * family will round up the real request size to these fixed ones, so
- * there could be an extra area than what is requested. Save the original
- * request size in the meta data area, for better debug and sanity check.
- */
-static inline void set_orig_size(struct kmem_cache *s,
-				void *object, unsigned int orig_size)
-{
-	void *p = kasan_reset_tag(object);
-	unsigned int kasan_meta_size;
-
-	if (!slub_debug_orig_size(s))
-		return;
-
-	/*
-	 * KASAN can save its free meta data inside of the object at offset 0.
-	 * If this meta data size is larger than 'orig_size', it will overlap
-	 * the data redzone in [orig_size+1, object_size]. Thus, we adjust
-	 * 'orig_size' to be as at least as big as KASAN's meta data.
-	 */
-	kasan_meta_size = kasan_metadata_size(s, true);
-	if (kasan_meta_size > orig_size)
-		orig_size = kasan_meta_size;
-
-	p += get_info_end(s);
-	p += sizeof(struct track) * 2;
-
-	*(unsigned int *)p = orig_size;
-}
-
-static inline unsigned int get_orig_size(struct kmem_cache *s, void *object)
-{
-	void *p = kasan_reset_tag(object);
-
-	if (!slub_debug_orig_size(s))
-		return s->object_size;
-
-	p += get_info_end(s);
-	p += sizeof(struct track) * 2;
-
-	return *(unsigned int *)p;
-}
-
 void skip_orig_size_check(struct kmem_cache *s, const void *object)
 {
 	set_orig_size(s, (void *)object, s->object_size);
@@ -1894,7 +1894,6 @@ static inline void inc_slabs_node(struct kmem_cache *s, int node,
 							int objects) {}
 static inline void dec_slabs_node(struct kmem_cache *s, int node,
 							int objects) {}
-
 #ifndef CONFIG_SLUB_TINY
 static bool freelist_corrupted(struct kmem_cache *s, struct slab *slab,
 			       void **freelist, void *nextfree)
@@ -2243,14 +2242,21 @@ bool slab_free_hook(struct kmem_cache *s, void *x, bool init)
 	 */
 	if (unlikely(init)) {
 		int rsize;
-		unsigned int inuse;
+		unsigned int inuse, orig_size;
 
 		inuse = get_info_end(s);
+		orig_size = get_orig_size(s, x);
 		if (!kasan_has_integrated_init())
-			memset(kasan_reset_tag(x), 0, s->object_size);
+			memset(kasan_reset_tag(x), 0, orig_size);
 		rsize = (s->flags & SLAB_RED_ZONE) ? s->red_left_pad : 0;
 		memset((char *)kasan_reset_tag(x) + inuse, 0,
 		       s->size - inuse - rsize);
+		/*
+		 * Restore orig_size, otherwize kmalloc redzone overwritten
+		 * would be reported
+		 */
+		set_orig_size(s, x, orig_size);
+
 	}
 	/* KASAN might put x into memory quarantine, delaying its reuse. */
 	return !kasan_slab_free(s, x, init);