Re: [PATCH RFC 0/4] Add firmware signature file check

From: Ming Lei
Date: Tue Nov 06 2012 - 06:03:48 EST


On Tue, Nov 6, 2012 at 6:53 PM, Takashi Iwai <tiwai@xxxxxxx> wrote:
> At Tue, 6 Nov 2012 18:40:57 +0800,
>> It is true if all firmwares are signed on safe boot. If firmware is allowed
>> to be loaded from network or other non-fs place in secure distribution,
>> your patch will break this loading.
>
> Do we already have such a secure mechanism? How is the security
> assured?

I don't know, and my comments are just on your patch and the condition.
I understand secure guys should know if the condition may be true or false, :-)

>> The clue can be found from debug message.
>
> Debug messages are turned off on normal machines, unfortunately.

Kernel guys will put one eye on bug report, also enabling udev log
can help the problem too.


Thanks,
--
Ming Lei
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