On 09/08/2015 03:12 PM, Xishi Qiu wrote: > The shadow which correspond 16 bytes memory may span 2 or 3 bytes. If the > memory is aligned on 8, then the shadow takes only 2 bytes. So we check > "shadow_first_bytes" is enough, and need not to call > "memory_is_poisoned_1(addr + 15);". > But the code "if (likely(!last_byte))" is wrong judgement. > > e.g. addr=0, so last_byte = 15 & KASAN_SHADOW_MASK = 7, then the code will > continue to call "memory_is_poisoned_1(addr + 15);" > > Signed-off-by: Xishi Qiu <qiuxi...@huawei.com>
Acked-by: Andrey Ryabinin <aryabi...@virtuozzo.com> -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
