linux-kernel - Re: [PATCH 2/2] user namespaces: require cap_set{ug}id for CLONE

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Message-ID: <alpine.LRH.1.10.0812080947050.23851@tundra.namei.org>
Date:	Mon, 8 Dec 2008 09:47:21 +1100 (EST)
From:	James Morris <jmorris@...ei.org>
To:	"Eric W. Biederman" <ebiederm@...ssion.com>
cc:	"Serge E. Hallyn" <serue@...ibm.com>,
	lkml <linux-kernel@...r.kernel.org>,
	David Howells <dhowells@...hat.com>,
	Michael Kerrisk <mtk.manpages@...il.com>,
	Dhaval Giani <dhaval@...ux.vnet.ibm.com>
Subject: Re: [PATCH 2/2] user namespaces: require cap_set{ug}id for
 CLONE_NEWUSER

On Fri, 5 Dec 2008, Eric W. Biederman wrote:

> "Serge E. Hallyn" <serue@...ibm.com> writes:
> 
> > While ideally CLONE_NEWUSER will eventually require no
> > privilege, the required permission checks are currently
> > not there.  As a result, CLONE_NEWUSER has the same effect
> > as a setuid(0)+setgroups(1,"0").  While we already require
> > CAP_SYS_ADMIN, requiring CAP_SETUID and CAP_SETGID seems
> > appropriate.
> 
> Acked-by: "Eric W. Biederman" <ebiederm@...ssion.com>
> 
> The patch looks good, and we are likely to need more caps to
> actually use it.

Applied to 
git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/security-testing-2.6#next


-- 
James Morris
<jmorris@...ei.org>
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