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Date: Mon, 09 Sep 2013 12:56:15 -0700
From: "H. Peter Anvin" <hpa@...or.com>
To: Josh Boyer <jwboyer@...il.com>
CC: Valdis Kletnieks <Valdis.Kletnieks@...edu>,
David Lang <david@...g.hm>,
Matthew Garrett <matthew.garrett@...ula.com>,
"Linux-Kernel@...r. Kernel. Org" <linux-kernel@...r.kernel.org>,
Kees Cook <keescook@...omium.org>,
Greg KH <gregkh@...uxfoundation.org>,
"linux-efi@...r.kernel.org" <linux-efi@...r.kernel.org>,
James Morris <jmorris@...ei.org>,
linux-security-module <linux-security-module@...r.kernel.org>
Subject: Re: [PATCH 00/12] One more attempt at useful kernel lockdown
>>
>> I.e. capabilities ;)
>
> Circles. All I see here are circles.
>
> Having lived an entire release with a capabilities based mechanism for
> this in Fedora, please no.
>
> And if you are talking about non-POSIX capabilities as you mentioned
> earlier, that seems to be no different than having securelevel being a
> bitmask of, well, levels. I don't have much opinion on securelevel
> being a big hammer or a bitmask of finer grained things, but I do
> think it's a more manageable way forward. Calling the implementation
> "capabilities" seems to just be unnecessarily confusing.
>
This is the term "capability" in the general sense, not the POSIX
implementation thereof.
-hpa
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