static gfn_t get_mmio_spte_gfn(u64 spte)
{
	u64 mask = generation_mmio_spte_mask(MMIO_MAX_GEN) | shadow_mmio_mask;
	return (spte & ~mask) >> PAGE_SHIFT;
}

The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly.