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Date: Fri, 24 Apr 2015 15:13:31 -0500 (CDT)
From: Christoph Lameter <cl@linux.com>
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To: Andy Lutomirski <luto@amacapital.net>
cc: Serge Hallyn <serge.hallyn@ubuntu.com>,
        Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com>,
        Andrew Lutomirski <luto@kernel.org>, "Ted Ts'o" <tytso@mit.edu>,
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        Linux API <linux-api@vger.kernel.org>,
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        Michael Kerrisk <mtk.manpages@gmail.com>,
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        Aaron Jones <aaronmdjones@gmail.com>,
        Serge Hallyn <serge.hallyn@canonical.com>,
        LKML <linux-kernel@vger.kernel.org>, Markku Savela <msa@moth.iki.fi>,
        Kees Cook <keescook@chromium.org>, Jonathan Corbet <corbet@lwn.net>
Subject: Re: [RFC] capabilities: Ambient capabilities
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On Fri, 24 Apr 2015, Andy Lutomirski wrote:

> That's sort of what my patch does -- you need CAP_SETPCAP to switch
> the securebit.
>
> But Christoph's patch required it to add caps to the ambient set, right?

Yes but you seem to be just adding one additional step without too much of
a benefit because you still need CAP_SETPCAP.