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Message-ID: <CACPK8XfOLfpq6Em7nPe7ef-5D2U-feN4A5u_+K=RrBGX2x=5ew@mail.gmail.com>
Date: Thu, 31 Oct 2019 00:05:49 +0000
From: Joel Stanley <joel@....id.au>
To: Russell Currey <ruscur@...sell.cc>
Cc: linuxppc-dev@...ts.ozlabs.org, Christophe LEROY <christophe.leroy@....fr>,
Michael Ellerman <mpe@...erman.id.au>, ajd@...ux.ibm.com, Daniel Axtens <dja@...ens.net>,
Nicholas Piggin <npiggin@...il.com>, kernel-hardening@...ts.openwall.com
Subject: Re: [PATCH v5 5/5] powerpc/configs: Enable STRICT_MODULE_RWX in skiroot_defconfig
On Wed, 30 Oct 2019 at 07:31, Russell Currey <ruscur@...sell.cc> wrote:
>
> skiroot_defconfig is the only powerpc defconfig with STRICT_KERNEL_RWX
> enabled, and if you want memory protection for kernel text you'd want it
> for modules too, so enable STRICT_MODULE_RWX there.
>
> Signed-off-by: Russell Currey <ruscur@...sell.cc>
Acked-by: Joel Stanley <joel@....id.au>
> ---
> arch/powerpc/configs/skiroot_defconfig | 1 +
> 1 file changed, 1 insertion(+)
>
> diff --git a/arch/powerpc/configs/skiroot_defconfig b/arch/powerpc/configs/skiroot_defconfig
> index 1253482a67c0..719d899081b3 100644
> --- a/arch/powerpc/configs/skiroot_defconfig
> +++ b/arch/powerpc/configs/skiroot_defconfig
> @@ -31,6 +31,7 @@ CONFIG_PERF_EVENTS=y
> CONFIG_SLAB_FREELIST_HARDENED=y
> CONFIG_JUMP_LABEL=y
> CONFIG_STRICT_KERNEL_RWX=y
> +CONFIG_STRICT_MODULE_RWX=y
> CONFIG_MODULES=y
> CONFIG_MODULE_UNLOAD=y
> CONFIG_MODULE_SIG=y
> --
> 2.23.0
>
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