From: Will Deacon <will@kernel.org>
To: youngjun <her0gyugyu@gmail.com>, rossmeikleham@gmail.com
Cc: Catalin Marinas <catalin.marinas@arm.com>,
linux-arm-kernel@lists.infradead.org,
linux-kernel@vger.kernel.org
Subject: Re: [PATCH] arm64: update RANDOMIZE_MODULE_REGION_FULL config description
Date: Mon, 23 Nov 2020 11:12:14 +0000 [thread overview]
Message-ID: <20201123111213.GB9957@willie-the-truck> (raw)
In-Reply-To: <20201122070855.10506-1-her0gyugyu@gmail.com>
On Sat, Nov 21, 2020 at 11:08:55PM -0800, youngjun wrote:
> module randomization is reduced. (range to 2 GB)
> RANDOMIZE_MODULE_REGION_FULL config description is not updated.
> update RANDOMIZE_MODULE_REGION_FULL config description.
>
> Signed-off-by: youngjun <her0gyugyu@gmail.com>
> ---
> arch/arm64/Kconfig | 4 ++--
> 1 file changed, 2 insertions(+), 2 deletions(-)
This looks like the same patch as the one I reviewed here:
https://lore.kernel.org/r/20201109112705.GC14356@willie-the-truck
but the commit message isn't a lot better. Please could you (or Ross)
post a version with a fixed commit message?
Thanks,
Will
> diff --git a/arch/arm64/Kconfig b/arch/arm64/Kconfig
> index 1515f6f153a0..0da551828a59 100644
> --- a/arch/arm64/Kconfig
> +++ b/arch/arm64/Kconfig
> @@ -1804,11 +1804,11 @@ config RANDOMIZE_BASE
> If unsure, say N.
>
> config RANDOMIZE_MODULE_REGION_FULL
> - bool "Randomize the module region over a 4 GB range"
> + bool "Randomize the module region over a 2 GB range"
> depends on RANDOMIZE_BASE
> default y
> help
> - Randomizes the location of the module region inside a 4 GB window
> + Randomizes the location of the module region inside a 2 GB window
> covering the core kernel. This way, it is less likely for modules
> to leak information about the location of core kernel data structures
> but it does imply that function calls between modules and the core
> --
> 2.17.1
>
prev parent reply other threads:[~2020-11-23 11:12 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-11-22 7:08 [PATCH] arm64: update RANDOMIZE_MODULE_REGION_FULL config description youngjun
2020-11-23 11:12 ` Will Deacon [this message]
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