linux-kernel - Re: [PATCH v7 12/17] KEYS: integrity: change link restriction to trust the machine keyring

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Date:   Thu, 18 Nov 2021 19:23:26 -0500
From:   Mimi Zohar <zohar@...ux.ibm.com>
To:     Eric Snowberg <eric.snowberg@...cle.com>, keyrings@...r.kernel.org,
        linux-integrity@...r.kernel.org, dhowells@...hat.com,
        dwmw2@...radead.org, herbert@...dor.apana.org.au,
        davem@...emloft.net, jarkko@...nel.org, jmorris@...ei.org,
        serge@...lyn.com
Cc:     keescook@...omium.org, torvalds@...ux-foundation.org,
        weiyongjun1@...wei.com, nayna@...ux.ibm.com, ebiggers@...gle.com,
        ardb@...nel.org, nramas@...ux.microsoft.com, lszubowi@...hat.com,
        jason@...c4.com, linux-kernel@...r.kernel.org,
        linux-crypto@...r.kernel.org, linux-efi@...r.kernel.org,
        linux-security-module@...r.kernel.org,
        James.Bottomley@...senPartnership.com, pjones@...hat.com,
        konrad.wilk@...cle.com
Subject: Re: [PATCH v7 12/17] KEYS: integrity: change link restriction to
 trust the machine keyring

On Mon, 2021-11-15 at 19:15 -0500, Eric Snowberg wrote:
> With the introduction of the machine keyring, the end-user may choose to
> trust Machine Owner Keys (MOK) within the kernel. If they have chosen to
> trust them, the .machine keyring will contain these keys.  If not, the
> machine keyring will always be empty.  Update the restriction check to
> allow the secondary trusted keyring and ima keyring to also trust
> machine keys.
> 
> Signed-off-by: Eric Snowberg <eric.snowberg@...cle.com>

Reviewed-by:  Mimi Zohar <zohar@...ux.ibm.com>