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Date: Wed, 23 May 2018 14:26:51 -0700
From: Randy Dunlap <rdunlap@...radead.org>
To: Thomas Garnier <thgarnie@...gle.com>,
Herbert Xu <herbert@...dor.apana.org.au>,
"David S . Miller" <davem@...emloft.net>,
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Cc: x86@...nel.org, linux-crypto@...r.kernel.org,
linux-kernel@...r.kernel.org, linux-pm@...r.kernel.org,
virtualization@...ts.linux-foundation.org, xen-devel@...ts.xenproject.org,
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kernel-hardening@...ts.openwall.com
Subject: Re: [PATCH v3 23/27] x86/modules: Adapt module loading for PIE
support
Hi,
(for several patches in this series:)
The commit message is confusing. See below.
On 05/23/2018 12:54 PM, Thomas Garnier wrote:
> Adapt module loading to support PIE relocations. Generate dynamic GOT if
> a symbol requires it but no entry exist in the kernel GOT.
exists
>
> Position Independent Executable (PIE) support will allow to extended the
will allow us to extend the
> KASLR randomization range below the -2G memory limit.
Does that say "below th negative 2G memory limit"?
I don't get it.
>
> Signed-off-by: Thomas Garnier <thgarnie@...gle.com>
> ---
> arch/x86/Makefile | 4 +
> arch/x86/include/asm/module.h | 11 ++
> arch/x86/include/asm/sections.h | 4 +
> arch/x86/kernel/module.c | 181 +++++++++++++++++++++++++++++++-
> arch/x86/kernel/module.lds | 3 +
> 5 files changed, 198 insertions(+), 5 deletions(-)
> create mode 100644 arch/x86/kernel/module.lds
Thanks,
--
~Randy
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