Message-ID: <522E2487.90109@zytor.com>
Date: Mon, 09 Sep 2013 12:41:59 -0700
From: "H. Peter Anvin" <hpa@zytor.com>
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To: Valdis.Kletnieks@vt.edu
CC: David Lang <david@lang.hm>, Matthew Garrett <matthew.garrett@nebula.com>,
        linux-kernel@vger.kernel.org, keescook@chromium.org,
        gregkh@linuxfoundation.org, linux-efi@vger.kernel.org,
        jmorris@namei.org, linux-security-module@vger.kernel.org
Subject: Re: [PATCH 00/12] One more attempt at useful kernel lockdown
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On 09/09/2013 12:01 PM, Valdis.Kletnieks@vt.edu wrote:
> On Mon, 09 Sep 2013 11:25:38 -0700, David Lang said:
> 
>> Given that we know that people want signed binaries without
>> blocking kexec, you should have '1' just enforce module signing
>> and '2' (or higher) implement a full lockdown including kexec.
> 
>> Or, eliminate the -1  permanently insecure option and make this a
>> bitmask, if someone wants to enable every possible lockdown, have
>> them set it to "all 1's", define the bits only as you need them.
> 
> This strikes me as much more workable than one big sledgehammer.
> 

I.e. capabilities ;)

	-hpa

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