diff --git a/mm/slab_common.c b/mm/slab_common.c
index a84d9360c..05135ebb6 100755
--- a/mm/slab_common.c
+++ b/mm/slab_common.c
@@ -1101,13 +1101,6 @@ static __always_inline void *__do_krealloc(const void *p, size_t new_size,
 
 	/* If the object still fits, repoison it precisely. */
 	if (ks >= new_size) {
-		/* Zero out spare memory. */
-		if (want_init_on_alloc(flags)) {
-			kasan_disable_current();
-			memset((void *)p + new_size, 0, ks - new_size);
-			kasan_enable_current();
-		}
-
 		p = kasan_krealloc((void *)p, new_size, flags);
 		return (void *)p;
 	}