[0/3] Kconfig: Refactor memory initialization hardening

Message

Kees Cook April 10, 2019, 4:16 p.m. UTC

This is a proposed alternative for the memory initialization series,
which refactoring the existing gcc plugins into a separate Kconfig
file and collects all the related options together with some more
language to describe their differences. The last patch adds the
Clang auto init option, as done by Alexander Potapenko.

Since there isn't really a good way to "select" with dependencies,
I've left out CONFIG_INIT_ALL_MEMORY for the moment...

-Kees

Kees Cook (3):
  Kconfig: Create "kernel hardening" config area
  kbuild: Move stackleak config to Kconfig.hardening
  kbuild: Implement Clang's stack initialization

 Makefile                    |   5 ++
 scripts/gcc-plugins/Kconfig | 121 +-------------------------
 security/Kconfig            |   2 +
 security/Kconfig.hardening  | 165 ++++++++++++++++++++++++++++++++++++
 4 files changed, 175 insertions(+), 118 deletions(-)
 create mode 100644 security/Kconfig.hardening

Comments

Masahiro Yamada April 11, 2019, 7:59 a.m. UTC | #1

On Thu, Apr 11, 2019 at 1:16 AM Kees Cook <[e-mail]> wrote:
>
> This is a proposed alternative for the memory initialization series,
> which refactoring the existing gcc plugins into a separate Kconfig
> file and collects all the related options together with some more
> language to describe their differences. The last patch adds the
> Clang auto init option, as done by Alexander Potapenko.
>
> Since there isn't really a good way to "select" with dependencies,
> I've left out CONFIG_INIT_ALL_MEMORY for the moment...
>
> -Kees
>
> Kees Cook (3):
>   Kconfig: Create "kernel hardening" config area

I want to see "kconfig:" prefix in the subject line
only for changed in scripts/kconfig/.


>   kbuild: Move stackleak config to Kconfig.hardening

This is not a change in the build system.

>   kbuild: Implement Clang's stack initialization


I think "gcc-plugin:", "security:' or something is better for the
patch subjects, and this patch series is out of
my maintenance area.





>  Makefile                    |   5 ++
>  scripts/gcc-plugins/Kconfig | 121 +-------------------------
>  security/Kconfig            |   2 +
>  security/Kconfig.hardening  | 165 ++++++++++++++++++++++++++++++++++++
>  4 files changed, 175 insertions(+), 118 deletions(-)
>  create mode 100644 security/Kconfig.hardening
>
> --
> 2.17.1
>


--
Best Regards
Masahiro Yamada