diff options
| -rw-r--r-- | mm/slub.c | 13 |
1 files changed, 3 insertions, 10 deletions
diff --git a/mm/slub.c b/mm/slub.c index beac34a5e4fd..1832ae1ea536 100644 --- a/mm/slub.c +++ b/mm/slub.c @@ -405,9 +405,8 @@ static int check_bytes(u8 *start, unsigned int value, unsigned int bytes) return 1; } - -static int check_valid_pointer(struct kmem_cache *s, struct page *page, - void *object) +static inline int check_valid_pointer(struct kmem_cache *s, + struct page *page, const void *object) { void *base; @@ -1796,13 +1795,7 @@ int kmem_ptr_validate(struct kmem_cache *s, const void *object) /* No slab or wrong slab */ return 0; - addr = page_address(page); - if (object < addr || object >= addr + s->objects * s->size) - /* Out of bounds */ - return 0; - - if ((object - addr) % s->size) - /* Improperly aligned */ + if (!check_valid_pointer(s, page, object)) return 0; /* |