Re: mm: testcases for RODATA: renamed Kconfig option

From: Kees Cook
Date: Wed Feb 08 2017 - 14:34:41 EST


On Wed, Feb 8, 2017 at 1:34 AM, Valentin Rothberg
<valentinrothberg@xxxxxxxxx> wrote:
> Hi Jinbum,
>
> your commit bf9058f08772 ("mm: add arch-independent testcases for
> RODATA") has shown up in today's linux next and ran into an issue with
> another commit.
>
> The added testcases depend on DEBUG_RODATA_TEST, which further depends
> on DEBUG_RODATA. DEBUG_RODATA, however, has been renamed to
> STRICT_KERNEL_RWX by commit 0f5bf6d0afe4 ("arch: Rename
> CONFIG_DEBUG_RODATA and CONFIG_DEBUG_MODULE_RONX").
>
> Long story short. DEBUG_RODATA_TEST is currently dead, since
> DEBUG_RODATA doesn't exist anymore. If you want to, I can send a
> trivial patch that renames the dependency and renames
> DEBUG_RODATA_TEST to STRICT_KERNEL_RWX_TEST to keep consistency.
>
> I detected the issue with scripts/checkkconfigsymbols.py.

Since DEBUG_RODATA_TEST only tests RO-ness, let's leave it named
as-is, but fix the config dependency.

-Kees

--
Kees Cook
Pixel Security