Re: [PATCH] kasan: Add CONFIG_KASAN_WHITELIST_ONLY mode

[Alexander Potapenko]

(CC Masahiro Yamada)

On Thu, Sep 28, 2023 at 6:16 AM Joey Jiao <quic_jiangenj@xxxxxxxxxxx> wrote:
>
> Fow low memory device, full enabled kasan just not work.
> Set KASAN_SANITIZE to n when CONFIG_KASAN_WHITELIST_ONLY=y.
> So we can enable kasan for single file or module.

I don't have technical objections here, but it bothers me a bit that
we are adding support for KASAN_SANITIZE:=y, although nobody will be
adding KASAN_SANITIZE:=y to upstream Makefiles - only development
kernels when debugging on low-end devices.

Masahiro, is this something worth having in upstream Kconfig code?

> Signed-off-by: Joey Jiao <quic_jiangenj@xxxxxxxxxxx>
Reviewed-by: Alexander Potapenko <glider@xxxxxxxxxx>