linux-kernel - Re: [PATCH 03/11] arm: Kconfig: enable KASan

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Date:   Sun, 22 Oct 2017 12:27:57 +0000
From:   "Liuwenliang (Lamb)" <liuwenliang@...wei.com>
To:     Russell King - ARM Linux <linux@...linux.org.uk>,
        Florian Fainelli <f.fainelli@...il.com>
CC:     "aryabinin@...tuozzo.com" <aryabinin@...tuozzo.com>,
        "afzal.mohd.ma@...il.com" <afzal.mohd.ma@...il.com>,
        "labbott@...hat.com" <labbott@...hat.com>,
        "kirill.shutemov@...ux.intel.com" <kirill.shutemov@...ux.intel.com>,
        "mhocko@...e.com" <mhocko@...e.com>,
        "cdall@...aro.org" <cdall@...aro.org>,
        "marc.zyngier@....com" <marc.zyngier@....com>,
        "catalin.marinas@....com" <catalin.marinas@....com>,
        "akpm@...ux-foundation.org" <akpm@...ux-foundation.org>,
        "mawilcox@...rosoft.com" <mawilcox@...rosoft.com>,
        "tglx@...utronix.de" <tglx@...utronix.de>,
        "thgarnie@...gle.com" <thgarnie@...gle.com>,
        "keescook@...omium.org" <keescook@...omium.org>,
        "arnd@...db.de" <arnd@...db.de>,
        "vladimir.murzin@....com" <vladimir.murzin@....com>,
        "tixy@...aro.org" <tixy@...aro.org>,
        "ard.biesheuvel@...aro.org" <ard.biesheuvel@...aro.org>,
        "robin.murphy@....com" <robin.murphy@....com>,
        "mingo@...nel.org" <mingo@...nel.org>,
        "grygorii.strashko@...aro.org" <grygorii.strashko@...aro.org>,
        "opendmb@...il.com" <opendmb@...il.com>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "kasan-dev@...glegroups.com" <kasan-dev@...glegroups.com>,
        Zengweilin <zengweilin@...wei.com>,
        "linux-mm@...ck.org" <linux-mm@...ck.org>,
        Dailei <dylix.dailei@...wei.com>,
        "glider@...gle.com" <glider@...gle.com>,
        "dvyukov@...gle.com" <dvyukov@...gle.com>,
        Jiazhenghua <jiazhenghua@...wei.com>,
        "linux-arm-kernel@...ts.infradead.org" 
        <linux-arm-kernel@...ts.infradead.org>,
        Heshaoliang <heshaoliang@...wei.com>
Subject: Re: [PATCH 03/11] arm: Kconfig: enable KASan

On 10/22/2017 01:22 AM, Russell King - ARM Linux wrote:
>On Wed, Oct 11, 2017 at 12:15:44PM -0700, Florian Fainelli wrote:
>> On 10/11/2017 01:22 AM, Abbott Liu wrote:
>> > From: Andrey Ryabinin <a.ryabinin@...sung.com>
>> > 
>> > This patch enable kernel address sanitizer for arm.
>> > 
>> > Cc: Andrey Ryabinin <a.ryabinin@...sung.com>
>> > Signed-off-by: Abbott Liu <liuwenliang@...wei.com>
>> 
>> This needs to be the last patch in the series, otherwise you allow
>> people between patch 3 and 11 to have varying degrees of experience with
>> this patch series depending on their system type (LPAE or not, etc.)
>
>As the series stands, if patches 1-3 are applied, and KASAN is enabled,
>there are various constants that end up being undefined, and the kernel
>build will fail.  That is, of course, not acceptable.
>
>KASAN must not be available until support for it is functionally
>complete.

Thanks for Florian Fainelli and Russell King's review.
I'm going to change it in the new version.