linux-kernel - Re: [RFC PATCH 07/11] x86/tools: Adding relative relocs for randomized functions

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Message-ID: <202002060435.CF7BFB723@keescook>
Date:   Thu, 6 Feb 2020 04:37:39 -0800
From:   Kees Cook <keescook@...omium.org>
To:     Kristen Carlson Accardi <kristen@...ux.intel.com>
Cc:     tglx@...utronix.de, mingo@...hat.com, bp@...en8.de, hpa@...or.com,
        arjan@...ux.intel.com, rick.p.edgecombe@...el.com, x86@...nel.org,
        linux-kernel@...r.kernel.org, kernel-hardening@...ts.openwall.com
Subject: Re: [RFC PATCH 07/11] x86/tools: Adding relative relocs for
 randomized functions

On Wed, Feb 05, 2020 at 02:39:46PM -0800, Kristen Carlson Accardi wrote:
> If we are randomizing function sections, we are going to need
> to recalculate relative offsets for relocs that are either in
> the randomized sections, or refer to the randomized sections.
> Add code to detect whether a reloc satisifies these cases, and if
> so, add them to the appropriate reloc list.
> 
> Signed-off-by: Kristen Carlson Accardi <kristen@...ux.intel.com>

Looks good to me. :)

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

-Kees

-- 
Kees Cook