Re: [PATCH v1 0/9] Enable root to update the blacklist keyring

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On Fri, Nov 20, 2020 at 07:04:17PM +0100, Mickaël Salaün wrote:
> Hi,
> 
> This patch series mainly 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.

I apologize for latency. This cycle has been difficult because of
final cuts with the huge SGX patch set.

I did skim through this and did not see anything striking (but it
was a quick look).

What would be easiest way to smoke test the changes?

> Regards,
> 
> Mickaël Salaün (9):
>   certs: Fix blacklisted hexadecimal hash string check
>   certs: Make blacklist_vet_description() more strict
>   certs: Factor out the blacklist hash creation
>   certs: Check that builtin blacklist hashes are valid
>   PKCS#7: Fix missing include
>   certs: Fix blacklist flag type confusion
>   certs: Allow root user to append signed hashes to the blacklist
>     keyring
>   certs: Replace K{U,G}IDT_INIT() with GLOBAL_ROOT_{U,G}ID
>   tools/certs: Add print-cert-tbs-hash.sh
> 
>  MAINTAINERS                                   |   2 +
>  certs/.gitignore                              |   1 +
>  certs/Kconfig                                 |  10 +
>  certs/Makefile                                |  15 +-
>  certs/blacklist.c                             | 210 +++++++++++++-----
>  certs/system_keyring.c                        |   5 +-
>  crypto/asymmetric_keys/x509_public_key.c      |   3 +-
>  include/keys/system_keyring.h                 |  14 +-
>  include/linux/verification.h                  |   2 +
>  scripts/check-blacklist-hashes.awk            |  37 +++
>  .../platform_certs/keyring_handler.c          |  26 +--
>  tools/certs/print-cert-tbs-hash.sh            |  91 ++++++++
>  12 files changed, 335 insertions(+), 81 deletions(-)
>  create mode 100755 scripts/check-blacklist-hashes.awk
>  create mode 100755 tools/certs/print-cert-tbs-hash.sh
> 
> 
> base-commit: 09162bc32c880a791c6c0668ce0745cf7958f576
> -- 
> 2.29.2
> 
> 

/Jarkko



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