Messages in this thread | | | Subject | Re: Firmware signing -- Re: [PATCH 00/27] security, efi: Add kernel lockdown | From | Mimi Zohar <> | Date | Tue, 14 Nov 2017 07:21:38 -0500 |
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On Mon, 2017-11-13 at 14:09 -0800, Linus Torvalds wrote: > On Mon, Nov 13, 2017 at 1:44 PM, David Howells <dhowells@redhat.com> wrote: > > > > Whilst that may be true, we either have to check signatures on every bit of > > firmware that the appropriate driver doesn't say is meant to be signed or not > > bother. > > I vote for "not bother". > > Seriously, if you have firmware in /lib/firmware, and you don't trust > it, what the hell are you doing?
I might "trust" the files in /lib/firmware, but I also want to make sure that they haven't changed. File signatures provide file provenance and integrity guarantees.
Mimi
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