linux-kernel - Re: [RFC][PATCH 0/2] Better hardening names

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Message-ID: <CAGXu5j+KA_+OxBo_fFO+YoZDyNYTCttRh06868o5-DAz53D30Q@mail.gmail.com>
Date:   Thu, 19 Jan 2017 14:08:12 -0800
From:   Kees Cook <keescook@...omium.org>
To:     Laura Abbott <labbott@...hat.com>
Cc:     Jason Wessel <jason.wessel@...driver.com>,
        Jonathan Corbet <corbet@....net>,
        Russell King <linux@...linux.org.uk>,
        Catalin Marinas <catalin.marinas@....com>,
        Will Deacon <will.deacon@....com>,
        "James E.J. Bottomley" <jejb@...isc-linux.org>,
        Helge Deller <deller@....de>,
        Martin Schwidefsky <schwidefsky@...ibm.com>,
        Heiko Carstens <heiko.carstens@...ibm.com>,
        Thomas Gleixner <tglx@...utronix.de>,
        Ingo Molnar <mingo@...hat.com>,
        "H. Peter Anvin" <hpa@...or.com>,
        "x86@...nel.org" <x86@...nel.org>, Rob Herring <robh@...nel.org>,
        "Rafael J. Wysocki" <rjw@...ysocki.net>,
        Len Brown <len.brown@...el.com>, Pavel Machek <pavel@....cz>,
        Mark Rutland <mark.rutland@....com>,
        Jessica Yu <jeyu@...hat.com>,
        "linux-doc@...r.kernel.org" <linux-doc@...r.kernel.org>,
        LKML <linux-kernel@...r.kernel.org>,
        "linux-arm-kernel@...ts.infradead.org" 
        <linux-arm-kernel@...ts.infradead.org>,
        linux-parisc <linux-parisc@...r.kernel.org>,
        "linux-s390@...r.kernel.org" <linux-s390@...r.kernel.org>,
        Linux PM list <linux-pm@...r.kernel.org>,
        "kernel-hardening@...ts.openwall.com" 
        <kernel-hardening@...ts.openwall.com>
Subject: Re: [RFC][PATCH 0/2] Better hardening names

On Wed, Jan 18, 2017 at 5:29 PM, Laura Abbott <labbott@...hat.com> wrote:
> Hi,
>
> It's come up previously that CONFIG_DEBUG_SET_MODULE_RONX and
> CONFIG_DEBUG_RODATA are not accurate names, mostly they should not have the
> word 'debug' in them. This series attempts to change the names to something
> a bit more descriptive and indicative of what they are actually used for these
> days.
>
> I marked this RFC for
> - Bike shedding purposes.
> - A discussion of what defaults should be. The way I did the refactoring, both
>   options are default y. I'd appreciate comments if there is a better approach.
> - Approach to split this up into more sub patches to make review/merging easier?
>   Or maybe it's fine.
>
> Quickly tested on arm/arm64/x86.
>
> Thanks,
> Laura
>
> Laura Abbott (2):
>   security: Change name of CONFIG_DEBUG_RODATA
>   security: Change name of CONFIG_DEBUG_SET_MODULE_RONX

Some day I'll quit reading my email backwards. :) I see you've got
MODULE_RONX renamed too here, please ignore my comment about needing
it "too". :)

-Kees

-- 
Kees Cook
Nexus Security