If you blindly trust hardware then on potential attack vector is malicious hardware. This used to be known as the Evil Maid attack. If a bad actor get's access

If you blindly trust hardware then on potential attack vector is malicious hardware. This used to be known as the Evil Maid attack. If a bad actor get's access to your hardware the thinking goes then all bets are off. And what happens when a significant portion of your hardware is built in a country known to be a bad actor? Well maybe the kernel should start treating the hardware as potential attack vectors now.