Re: [kernel-hardening] [PATCH v2 27/30] x86: Implement thread_struct whitelist for hardened usercopy

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On Mon, 2017-08-28 at 14:35 -0700, Kees Cook wrote:
> This whitelists the FPU register state portion of the thread_struct
> for
> copying to userspace, instead of the default entire struct.
> 
> Cc: Thomas Gleixner <tglx@xxxxxxxxxxxxx>
> Cc: Ingo Molnar <mingo@xxxxxxxxxx>
> Cc: "H. Peter Anvin" <hpa@xxxxxxxxx>
> Cc: x86@xxxxxxxxxx
> Cc: Borislav Petkov <bp@xxxxxxx>
> Cc: Andy Lutomirski <luto@xxxxxxxxxx>
> Cc: Mathias Krause <minipli@xxxxxxxxxxxxxx>
> Signed-off-by: Kees Cook <keescook@xxxxxxxxxxxx>
> ---
>  arch/x86/Kconfig                 | 1 +
>  arch/x86/include/asm/processor.h | 8 ++++++++
>  2 files changed, 9 insertions(+)
> 
Acked-by: Rik van Riel <riel@xxxxxxxxxx>

-- 
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