Re: [PATCH 00/12] One more attempt at useful kernel lockdown

H. Peter Anvin
2013-09-10T18:30:16Z

On 09/10/2013 11:26 AM, Matthew Garrett wrote:
> On Tue, 2013-09-10 at 14:23 -0300, Henrique de Moraes Holschuh wrote:
>> On Tue, 10 Sep 2013, Matthew Garrett wrote:
>>> That's why modern systems require signed firmware updates.
>>
>> Linux doesn't. Is someone working on adding signature support to the
>> runtime firmware loader?
>
> It'd be simple to do so, but so far the model appears to be that devices
> that expect signed firmware enforce that themselves.
>

Most devices do absolutely no verification on the firmware, and simply
trust the driver.

So signing firmware is probably critical.

-hpa