Re: [PATCH v2 2/2] selftests/lkdtm: Add UBSAN config

From: Kees Cook
Date: Fri Jan 21 2022 - 16:17:37 EST


On Fri, Jan 21, 2022 at 07:51:53PM +0500, Muhammad Usama Anjum wrote:
> UBSAN_BOUNDS and UBSAN_TRAP depend on UBSAN config option.
> merge_config.sh script generates following warnings if parent config
> doesn't have UBSAN config already enabled and UBSAN_BOUNDS/UBSAN_TRAP
> config options don't get added to the parent config.
>
> Value requested for CONFIG_UBSAN_BOUNDS not in final .config
> Requested value: CONFIG_UBSAN_BOUNDS=y
> Actual value:
>
> Value requested for CONFIG_UBSAN_TRAP not in final .config
> Requested value: CONFIG_UBSAN_TRAP=y
> Actual value:
>
> Fix this by including UBSAN config.
>
> Fixes: c75be56e35b2 ("lkdtm/bugs: Add ARRAY_BOUNDS to selftests")
> Signed-off-by: Muhammad Usama Anjum <usama.anjum@xxxxxxxxxxxxx>

Acked-by: Kees Cook <keescook@xxxxxxxxxxxx>

--
Kees Cook