diff options
| author | Alexander Potapenko <glider@google.com> | 2016-07-29 00:49:07 +0200 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2016-07-29 01:07:41 +0200 |
| commit | 80a9201a5965f4715d5c09790862e0df84ce0614 (patch) | |
| tree | e05d44a7f9ef0d81328dc4bd70f23656fc279bc9 /mm/kasan/report.c | |
| parent | mm, kasan: account for object redzone in SLUB's nearest_obj() (diff) | |
| download | linux-80a9201a5965f4715d5c09790862e0df84ce0614.tar.xz linux-80a9201a5965f4715d5c09790862e0df84ce0614.zip | |
mm, kasan: switch SLUB to stackdepot, enable memory quarantine for SLUB
For KASAN builds:
- switch SLUB allocator to using stackdepot instead of storing the
allocation/deallocation stacks in the objects;
- change the freelist hook so that parts of the freelist can be put
into the quarantine.
[aryabinin@virtuozzo.com: fixes]
Link: http://lkml.kernel.org/r/1468601423-28676-1-git-send-email-aryabinin@virtuozzo.com
Link: http://lkml.kernel.org/r/1468347165-41906-3-git-send-email-glider@google.com
Signed-off-by: Alexander Potapenko <glider@google.com>
Cc: Andrey Konovalov <adech.fo@gmail.com>
Cc: Christoph Lameter <cl@linux.com>
Cc: Dmitry Vyukov <dvyukov@google.com>
Cc: Steven Rostedt (Red Hat) <rostedt@goodmis.org>
Cc: Joonsoo Kim <iamjoonsoo.kim@lge.com>
Cc: Kostya Serebryany <kcc@google.com>
Cc: Andrey Ryabinin <aryabinin@virtuozzo.com>
Cc: Kuthonuzo Luruo <kuthonuzo.luruo@hpe.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'mm/kasan/report.c')
| -rw-r--r-- | mm/kasan/report.c | 8 |
1 files changed, 3 insertions, 5 deletions
diff --git a/mm/kasan/report.c b/mm/kasan/report.c index b3c122ddd454..861b9776841a 100644 --- a/mm/kasan/report.c +++ b/mm/kasan/report.c @@ -116,7 +116,6 @@ static inline bool init_task_stack_addr(const void *addr) sizeof(init_thread_union.stack)); } -#ifdef CONFIG_SLAB static void print_track(struct kasan_track *track) { pr_err("PID = %u\n", track->pid); @@ -130,8 +129,8 @@ static void print_track(struct kasan_track *track) } } -static void object_err(struct kmem_cache *cache, struct page *page, - void *object, char *unused_reason) +static void kasan_object_err(struct kmem_cache *cache, struct page *page, + void *object, char *unused_reason) { struct kasan_alloc_meta *alloc_info = get_alloc_info(cache, object); struct kasan_free_meta *free_info; @@ -162,7 +161,6 @@ static void object_err(struct kmem_cache *cache, struct page *page, break; } } -#endif static void print_address_description(struct kasan_access_info *info) { @@ -177,7 +175,7 @@ static void print_address_description(struct kasan_access_info *info) struct kmem_cache *cache = page->slab_cache; object = nearest_obj(cache, page, (void *)info->access_addr); - object_err(cache, page, object, + kasan_object_err(cache, page, object, "kasan: bad access detected"); return; } |