diff options
Diffstat (limited to 'mm/kasan')
| -rw-r--r-- | mm/kasan/kasan.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/mm/kasan/kasan.c b/mm/kasan/kasan.c index 578843fab5dc..3fb497d4fbf8 100644 --- a/mm/kasan/kasan.c +++ b/mm/kasan/kasan.c @@ -495,6 +495,12 @@ static bool __kasan_slab_free(struct kmem_cache *cache, void *object, s8 shadow_byte; unsigned long rounded_up_size; + if (unlikely(nearest_obj(cache, virt_to_head_page(object), object) != + object)) { + kasan_report_invalid_free(object, ip); + return true; + } + /* RCU slabs could be legally used after free within the RCU period */ if (unlikely(cache->flags & SLAB_TYPESAFE_BY_RCU)) return false; |