[PATCH v2 0/4] keys: Add EFI_CERT_X509_GUID support for dbx/mokx entries

From: David Howells
Date: Fri Feb 26 2021 - 04:54:28 EST



Here's my take on v5 of Eric Snowberg's patches[1]:

This series of patches adds support for EFI_CERT_X509_GUID entries [2]. It has
been expanded to not only include dbx entries but also entries in the mokx.
Additionally Eric included his patches to preload these certificate [3].

The patches can be found on the following branch:

https://git.kernel.org/pub/scm/linux/kernel/git/dhowells/linux-fs.git/log/?h=keys-cve-2020-26541-branch

Changes:

ver #2:
- Rolled in a fix to the second patch to include certs/common.h in
certs/common.c[6].

ver #1:
- I've modified the first patch in the series to fix a configuration
problem[4][5], to move the added functions to a more logical place
within thefile and to add kerneldoc comments.

Link: https://lore.kernel.org/r/20210122181054.32635-1-eric.snowberg@xxxxxxxxxx [1]
Link: https://patchwork.kernel.org/project/linux-security-module/patch/20200916004927.64276-1-eric.snowberg@xxxxxxxxxx/ [2]
Link: https://lore.kernel.org/patchwork/cover/1315485/ [3]
Link: https://lore.kernel.org/r/bc2c24e3-ed68-2521-0bf4-a1f6be4a895d@xxxxxxxxxxxxx/ [4]
Link: https://lore.kernel.org/r/20210225125638.1841436-1-arnd@xxxxxxxxxx/ [5]
Link: https://lore.kernel.org/r/EDA280F9-F72D-4181-93C7-CDBE95976FF7@xxxxxxxxxx/ [6]
Link: https://lore.kernel.org/r/161428671215.677100.6372209948022011988.stgit@xxxxxxxxxxxxxxxxxxxxxx/

David
---
Eric Snowberg (4):
certs: Add EFI_CERT_X509_GUID support for dbx entries
certs: Move load_system_certificate_list to a common function
certs: Add ability to preload revocation certs
integrity: Load mokx variables into the blacklist keyring


certs/Kconfig | 8 +++
certs/Makefile | 20 ++++++-
certs/blacklist.c | 17 ++++++
certs/common.c | 57 +++++++++++++++++++
certs/common.h | 9 +++
certs/revocation_certificates.S | 21 +++++++
certs/system_keyring.c | 49 +---------------
scripts/Makefile | 1 +
security/integrity/platform_certs/load_uefi.c | 20 ++++++-
9 files changed, 151 insertions(+), 51 deletions(-)
create mode 100644 certs/common.c
create mode 100644 certs/common.h
create mode 100644 certs/revocation_certificates.S