KASAN_TAG_INVALID
kasan_poison((void *)redzone_start, redzone_size, KASAN_TAG_INVALID,
#define KASAN_PAGE_FREE KASAN_TAG_INVALID
#define KASAN_PAGE_REDZONE KASAN_TAG_INVALID
#define KASAN_SLAB_REDZONE KASAN_TAG_INVALID
#define KASAN_SLAB_FREE KASAN_TAG_INVALID
#define KASAN_VMALLOC_INVALID KASAN_TAG_INVALID /* only used for SW_TAGS */
if (memory_tag != KASAN_TAG_INVALID)
if (*shadow != KASAN_TAG_INVALID)