KMSAN_STATE_UNINIT
kmsan_mark(p, allocsize, KMSAN_STATE_UNINIT);
kmsan_mark(v, size, KMSAN_STATE_UNINIT);
kmsan_shadow_fill(addr, KMSAN_STATE_UNINIT, size);
kmsan_mark(p, pp->pr_size, KMSAN_STATE_UNINIT);
kmsan_mark((void *)kva, size, KMSAN_STATE_UNINIT);