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Message-ID: <511C3F2C.9040403@schaufler-ca.com>
Date: Wed, 13 Feb 2013 17:34:36 -0800
From: Casey Schaufler <casey@schaufler-ca.com>
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To: Matthew Garrett <matthew.garrett@nebula.com>
CC: "H. Peter Anvin" <hpa@zytor.com>, Borislav Petkov <bp@alien8.de>,
        Kees Cook <keescook@chromium.org>, LKML <linux-kernel@vger.kernel.org>,
        Thomas Gleixner <tglx@linutronix.de>, Ingo Molnar <mingo@redhat.com>,
        "x86@kernel.org" <x86@kernel.org>,
        "linux-efi@vger.kernel.org" <linux-efi@vger.kernel.org>,
        linux-security-module <linux-security-module@vger.kernel.org>,
        Casey Schaufler <casey@schaufler-ca.com>
Subject: Re: [PATCH] x86: Lock down MSR writing in secure boot
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On 2/13/2013 5:04 PM, Matthew Garrett wrote:
> On Wed, 2013-02-13 at 16:44 -0800, Casey Schaufler wrote:
>
>> If you want that sort of granularity throw yourself on the SELinux
>> bandwagon. Fine grained capabilities are insane and unmanageable
>> and will only lead to tears. Security is despised because of the
>> notion that making systems impossible to use is a good thing.
> SELinux is completely unusable for this specific case.
>
Well, you'll get no argument from me there.