Re: [PATCH v16 02/26] x86/cet/shstk: Add Kconfig option for user-mode control-flow protection

[Borislav Petkov]

On Wed, Dec 09, 2020 at 02:22:56PM -0800, Yu-cheng Yu wrote:
> Shadow Stack provides protection against function return address
> corruption.  It is active when the processor supports it, the kernel has
> CONFIG_X86_CET_USER, and the application is built for the feature.
		     ^
		   enabled.

> This is only implemented for the 64-bit kernel.  When it is enabled, legacy
> non-Shadow Stack applications continue to work, but without protection.
> 
> Signed-off-by: Yu-cheng Yu <yu-cheng.yu@xxxxxxxxx>
> ---
>  arch/x86/Kconfig           | 22 ++++++++++++++++++++++
>  arch/x86/Kconfig.assembler |  5 +++++
>  2 files changed, 27 insertions(+)

Rest looks good, thanks.

-- 
Regards/Gruss,
    Boris.

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