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| author | Dmitry Vyukov <dvyukov@google.com> | 2018-02-07 02:36:27 +0300 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2018-02-07 05:32:43 +0300 |
| commit | ee3ce779b58c31acacdfab0ad6c86d428ba2c2e3 (patch) | |
| tree | e27239a0a81672dfea5f70c893fb92f3615ca47e /mm/kasan/kasan.h | |
| parent | 47adccce3e8a31d315f47183ab1185862b2fc5d4 (diff) | |
| download | linux-ee3ce779b58c31acacdfab0ad6c86d428ba2c2e3.tar.xz | |
kasan: don't use __builtin_return_address(1)
__builtin_return_address(1) is unreliable without frame pointers.
With defconfig on kmalloc_pagealloc_invalid_free test I am getting:
BUG: KASAN: double-free or invalid-free in (null)
Pass caller PC from callers explicitly.
Link: http://lkml.kernel.org/r/9b01bc2d237a4df74ff8472a3bf6b7635908de01.1514378558.git.dvyukov@google.com
Signed-off-by: Dmitry Vyukov <dvyukov@google.com>
Cc: Andrey Ryabinin <aryabinin@virtuozzo.com>a
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'mm/kasan/kasan.h')
| -rw-r--r-- | mm/kasan/kasan.h | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/mm/kasan/kasan.h b/mm/kasan/kasan.h index bf353a18c908..c12dcfde2ebd 100644 --- a/mm/kasan/kasan.h +++ b/mm/kasan/kasan.h @@ -107,7 +107,7 @@ static inline const void *kasan_shadow_to_mem(const void *shadow_addr) void kasan_report(unsigned long addr, size_t size, bool is_write, unsigned long ip); -void kasan_report_invalid_free(void *object, void *ip); +void kasan_report_invalid_free(void *object, unsigned long ip); #if defined(CONFIG_SLAB) || defined(CONFIG_SLUB) void quarantine_put(struct kasan_free_meta *info, struct kmem_cache *cache); |