Thread (43 messages) 43 messages, 8 authors, 2019-04-25

Re: [PATCH 03/27] Enforce module signatures if the kernel is locked down

From: James Morris <jmorris@namei.org>
Date: 2019-03-09 04:45:43
Also in: lkml

On Fri, 8 Mar 2019, Matthew Garrett wrote:
On Fri, Mar 8, 2019 at 3:00 PM James Morris [off-list ref] wrote:
quoted
On Wed, 6 Mar 2019, Matthew Garrett wrote:
quoted
From: David Howells <dhowells@redhat.com>

If the kernel is locked down, require that all modules have valid
signatures that we can verify.
Perhaps note that this won't cover the case where folk are using DM-Verity
with a signed root hash for verifying kernel modules.
Mm. I can't see a terribly good way of doing this generically -
loadpin gives no indication to the module loading code that it comes
from a trusted source. Would making the lockdown/module signature
enforcement a separate config option be reasonable?
I was just suggest documenting this.

-- 
James Morris
[off-list ref]
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