set_tag
kasan_unpoison(set_tag(page_address(page), tag),
object = set_tag(object, assign_tag(cache, object, true));
tagged_object = set_tag(object, tag);
addr = set_tag(vms[area]->addr, tag);
start = set_tag(start, tag);
ptr = set_tag(ptr, KASAN_TAG_KERNEL);
ptr = set_tag(ptr, tag);
start = set_tag(start, kasan_random_tag());