linux-kernel - Re: [RFC 01/18] capabilities: track actually used capabilities

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Message-ID: <CALCETrWM7JupEWeyT5OUDozGG1-XMVpAX+Ah5QwiX+G0VyveDA@mail.gmail.com>
Date:	Mon, 13 Jun 2016 13:32:21 -0700
From:	Andy Lutomirski <luto@...capital.net>
To:	Topi Miettinen <toiwoton@...il.com>
Cc:	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	Alexander Viro <viro@...iv.linux.org.uk>,
	Ingo Molnar <mingo@...hat.com>,
	Peter Zijlstra <peterz@...radead.org>,
	Serge Hallyn <serge.hallyn@...onical.com>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Kees Cook <keescook@...omium.org>,
	Christoph Lameter <cl@...ux.com>,
	"Serge E. Hallyn" <serge.hallyn@...ntu.com>,
	Andy Shevchenko <andriy.shevchenko@...ux.intel.com>,
	"Richard W.M. Jones" <rjones@...hat.com>,
	Iago López Galeiras <iago@...ocode.com>,
	Chris Metcalf <cmetcalf@...hip.com>,
	Andy Lutomirski <luto@...nel.org>, Jann Horn <jann@...jh.net>,
	"open list:FILESYSTEMS (VFS and infrastructure)" 
	<linux-fsdevel@...r.kernel.org>,
	"open list:CAPABILITIES" <linux-security-module@...r.kernel.org>
Subject: Re: [RFC 01/18] capabilities: track actually used capabilities

On Mon, Jun 13, 2016 at 12:44 PM, Topi Miettinen <toiwoton@...il.com> wrote:
> Track what capabilities are actually used and present the current
> situation in /proc/self/status.

What for?

What is the intended behavior on fork()?  Whatever the intended
behavior is, there should IMO be a selftest for it.

--Andy