linux-kernel - Re: [PATCH v2 0/5] Enable root to update the blacklist keyring

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Date:   Tue, 5 Jan 2021 11:12:57 +0100
From:   Mickaël Salaün <mic@...ikod.net>
To:     David Howells <dhowells@...hat.com>,
        David Woodhouse <dwmw2@...radead.org>,
        Jarkko Sakkinen <jarkko@...nel.org>
Cc:     "David S . Miller" <davem@...emloft.net>,
        Herbert Xu <herbert@...dor.apana.org.au>,
        James Morris <jmorris@...ei.org>,
        Mickaël Salaün <mic@...ux.microsoft.com>,
        Mimi Zohar <zohar@...ux.ibm.com>,
        "Serge E . Hallyn" <serge@...lyn.com>, keyrings@...r.kernel.org,
        linux-crypto@...r.kernel.org, linux-integrity@...r.kernel.org,
        linux-kernel@...r.kernel.org, linux-security-module@...r.kernel.org
Subject: Re: [PATCH v2 0/5] Enable root to update the blacklist keyring

Jarkko, David, what is the status of this patch series? Do you need help
to test it?

On 11/12/2020 20:03, Mickaël Salaün wrote:
> Hi,
> 
> This second patch series includes some minor fixes and remove the 4 fix
> patches picked by David Howells.  This patch series can then be applied
> on top of
> https://git.kernel.org/pub/scm/linux/kernel/git/dhowells/linux-fs.git/log/?h=keys-fixes
> 
> The goal of these patches is to add a new configuration option to enable
> the root user to load signed keys in the blacklist keyring.  This
> keyring is useful to "untrust" certificates or files.  Enabling to
> safely update this keyring without recompiling the kernel makes it more
> usable.
> 
> Previous patch series:
> https://lore.kernel.org/lkml/20201120180426.922572-1-mic@digikod.net/
> 
> Regards,
> 
> Mickaël Salaün (5):
>   certs: Make blacklist_vet_description() more strict
>   certs: Factor out the blacklist hash creation
>   certs: Check that builtin blacklist hashes are valid
>   certs: Allow root user to append signed hashes to the blacklist
>     keyring
>   tools/certs: Add print-cert-tbs-hash.sh
> 
>  MAINTAINERS                                   |   2 +
>  certs/.gitignore                              |   1 +
>  certs/Kconfig                                 |  10 +
>  certs/Makefile                                |  15 +-
>  certs/blacklist.c                             | 202 ++++++++++++++----
>  crypto/asymmetric_keys/x509_public_key.c      |   3 +-
>  include/keys/system_keyring.h                 |  14 +-
>  scripts/check-blacklist-hashes.awk            |  37 ++++
>  .../platform_certs/keyring_handler.c          |  26 +--
>  tools/certs/print-cert-tbs-hash.sh            |  91 ++++++++
>  10 files changed, 326 insertions(+), 75 deletions(-)
>  create mode 100755 scripts/check-blacklist-hashes.awk
>  create mode 100755 tools/certs/print-cert-tbs-hash.sh
> 
> 
> base-commit: 1b91ea77dfeb2c5924ab940f2e43177c78a37d8f
>