linux-kernel - Re: [kernel-hardening] [PATCH] arm: Always use REFCOUNT

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Message-ID: <CAGXu5j+YsB1FWvZHEjnixU8RMpk-DLDYLXXmxfQjsU_gy64ZDQ@mail.gmail.com>
Date:   Thu, 4 Jan 2018 10:32:46 -0800
From:   Kees Cook <keescook@...omium.org>
To:     Jinbum Park <jinb.park7@...il.com>
Cc:     linux-arm-kernel@...ts.infradead.org,
        LKML <linux-kernel@...r.kernel.org>,
        kernel-hardening@...ts.openwall.com,
        Ard Biesheuvel <ard.biesheuvel@...aro.org>,
        Dave Martin <Dave.Martin@....com>,
        Will Deacon <will.deacon@....com>
Subject: Re: [kernel-hardening] [PATCH] arm: Always use REFCOUNT_FULL

On Thu, Jan 4, 2018 at 4:28 AM, Jinbum Park <jinb.park7@...il.com> wrote:
> arm prefers to use REFCOUNT_FULL by default.
> This enables it for arm.
>
> Signed-off-by: Jinbum Park <jinb.park7@...il.com>

Acked-by: Kees Cook <keescook@...omium.org>

-Kees

> ---
>  arch/arm/Kconfig | 1 +
>  1 file changed, 1 insertion(+)
>
> diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
> index 3d349b4..ec80270 100644
> --- a/arch/arm/Kconfig
> +++ b/arch/arm/Kconfig
> @@ -100,6 +100,7 @@ config ARM
>         select OLD_SIGACTION
>         select OLD_SIGSUSPEND3
>         select PERF_USE_VMALLOC
> +       select REFCOUNT_FULL
>         select RTC_LIB
>         select SYS_SUPPORTS_APM_EMULATION
>         # Above selects are sorted alphabetically; please add new ones
> --
> 1.9.1
>



-- 
Kees Cook
Pixel Security