diff options
Diffstat (limited to 'lib/asan/asan_poisoning.h')
| -rw-r--r-- | lib/asan/asan_poisoning.h | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/lib/asan/asan_poisoning.h b/lib/asan/asan_poisoning.h index bb886dd7..fbac2119 100644 --- a/lib/asan/asan_poisoning.h +++ b/lib/asan/asan_poisoning.h @@ -43,6 +43,7 @@ ALWAYS_INLINE void FastPoisonShadow(uptr aligned_beg, uptr aligned_size, ALWAYS_INLINE void FastPoisonShadowPartialRightRedzone( uptr aligned_addr, uptr size, uptr redzone_size, u8 value) { DCHECK(flags()->poison_heap); + bool poison_partial = flags()->poison_partial; u8 *shadow = (u8*)MEM_TO_SHADOW(aligned_addr); for (uptr i = 0; i < redzone_size; i += SHADOW_GRANULARITY, shadow++) { if (i + SHADOW_GRANULARITY <= size) { @@ -51,7 +52,7 @@ ALWAYS_INLINE void FastPoisonShadowPartialRightRedzone( *shadow = (SHADOW_GRANULARITY == 128) ? 0xff : value; // unaddressable } else { // first size-i bytes are addressable - *shadow = static_cast<u8>(size - i); + *shadow = poison_partial ? static_cast<u8>(size - i) : 0; } } } |