linux-kernel - Re: [PATCH RFC 00/12] Enroll kernel keys thru MOK

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Date:   Wed, 7 Jul 2021 17:28:41 +0100
From:   Christoph Hellwig <hch@...radead.org>
To:     Eric Snowberg <eric.snowberg@...cle.com>
Cc:     Christoph Hellwig <hch@...radead.org>, keyrings@...r.kernel.org,
        linux-integrity <linux-integrity@...r.kernel.org>,
        Mimi Zohar <zohar@...ux.ibm.com>,
        David Howells <dhowells@...hat.com>,
        David Woodhouse <dwmw2@...radead.org>,
        herbert@...dor.apana.org.au, davem@...emloft.net,
        jarkko@...nel.org, jmorris@...ei.org, serge@...lyn.com,
        keescook@...omium.org, gregkh@...uxfoundation.org,
        torvalds@...ux-foundation.org, scott.branden@...adcom.com,
        weiyongjun1@...wei.com, nayna@...ux.ibm.com, ebiggers@...gle.com,
        ardb@...nel.org, nramas@...ux.microsoft.com, lszubowi@...hat.com,
        linux-kernel@...r.kernel.org, linux-crypto@...r.kernel.org,
        linux-security-module@...r.kernel.org,
        James.Bottomley@...senpartnership.com, pjones@...hat.com,
        glin@...e.com, "konrad.wilk@...cle.com" <konrad.wilk@...cle.com>
Subject: Re: [PATCH RFC 00/12] Enroll kernel keys thru MOK

On Wed, Jul 07, 2021 at 10:23:04AM -0600, Eric Snowberg wrote:
> 
> > On Jul 7, 2021, at 12:46 AM, Christoph Hellwig <hch@...radead.org> wrote:
> > 
> > On Tue, Jul 06, 2021 at 10:43:51PM -0400, Eric Snowberg wrote:
> >> This is a follow up to the "Add additional MOK vars" [1] series I 
> >> previously sent.  This series incorporates the feedback given 
> >> both publicly on the mailing list and privately from Mimi. This 
> >> series just focuses on getting end-user keys into the kernel trust 
> >> boundary.
> > 
> > WTF is MOK?
> 
> MOK stands for Machine Owner Key.   The MOK facility can be used to 
> import keys that you use to sign your own development kernel build, 
> so that it is able to boot with UEFI Secure Boot enabled. Many Linux 
> distributions have implemented UEFI Secure Boot using these keys 
> as well as the ones Secure Boot provides.  It allows the end-user 
> a choice, instead of locking them into only being able to use keys 
> their hardware manufacture provided, or forcing them to enroll keys 
> through their BIOS.

Please spell this out in your cover letters and commit logs.