diff options
Diffstat (limited to 'mm/kasan/kasan.h')
| -rw-r--r-- | mm/kasan/kasan.h | 15 |
1 files changed, 14 insertions, 1 deletions
diff --git a/mm/kasan/kasan.h b/mm/kasan/kasan.h index 014f19e76247..3a083274628e 100644 --- a/mm/kasan/kasan.h +++ b/mm/kasan/kasan.h @@ -25,6 +25,7 @@ #endif #define KASAN_GLOBAL_REDZONE 0xFA /* redzone for global variable */ +#define KASAN_VMALLOC_INVALID 0xF9 /* unallocated space in vmapped page */ /* * Stack redzone shadow values @@ -95,9 +96,19 @@ struct kasan_track { depot_stack_handle_t stack; }; +#ifdef CONFIG_KASAN_SW_TAGS_IDENTIFY +#define KASAN_NR_FREE_STACKS 5 +#else +#define KASAN_NR_FREE_STACKS 1 +#endif + struct kasan_alloc_meta { struct kasan_track alloc_track; - struct kasan_track free_track; + struct kasan_track free_track[KASAN_NR_FREE_STACKS]; +#ifdef CONFIG_KASAN_SW_TAGS_IDENTIFY + u8 free_pointer_tag[KASAN_NR_FREE_STACKS]; + u8 free_track_idx; +#endif }; struct qlist_node { @@ -146,6 +157,8 @@ void kasan_report(unsigned long addr, size_t size, bool is_write, unsigned long ip); void kasan_report_invalid_free(void *object, unsigned long ip); +struct page *kasan_addr_to_page(const void *addr); + #if defined(CONFIG_KASAN_GENERIC) && \ (defined(CONFIG_SLAB) || defined(CONFIG_SLUB)) void quarantine_put(struct kasan_free_meta *info, struct kmem_cache *cache); |
