diff options
Diffstat (limited to 'mm/kasan/generic.c')
| -rw-r--r-- | mm/kasan/generic.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/mm/kasan/generic.c b/mm/kasan/generic.c index 5b4c97baa656..4d837ab83f08 100644 --- a/mm/kasan/generic.c +++ b/mm/kasan/generic.c @@ -130,9 +130,10 @@ static __always_inline bool memory_is_poisoned_n(const void *addr, size_t size) if (unlikely(ret)) { const void *last_byte = addr + size - 1; s8 *last_shadow = (s8 *)kasan_mem_to_shadow(last_byte); + s8 last_accessible_byte = (unsigned long)last_byte & KASAN_GRANULE_MASK; if (unlikely(ret != (unsigned long)last_shadow || - (((long)last_byte & KASAN_GRANULE_MASK) >= *last_shadow))) + last_accessible_byte >= *last_shadow)) return true; } return false; |