linux-kernel - Re: [PATCH 7/8] user ns: handle file sigio

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Message-Id: <20070125001253.75f899d6.akpm@osdl.org>
Date:	Thu, 25 Jan 2007 00:12:53 -0800
From:	Andrew Morton <akpm@...l.org>
To:	"Serge E. Hallyn" <serue@...ibm.com>
Cc:	"Eric W. Biederman" <ebiederm@...ssion.com>,
	lkml <linux-kernel@...r.kernel.org>, containers@...ts.osdl.org
Subject: Re: [PATCH 7/8] user ns: handle file sigio

On Wed, 24 Jan 2007 12:58:45 -0600
"Serge E. Hallyn" <serue@...ibm.com> wrote:

> > If we need to I can see doing something special if the process setting
> > fown has CAP_KILL
> 
> Obviously CAP_KILL is insufficient :)  I assume you mean a new
> CAP_XNS_CAP_KILL?
> 
> > and bypassing the security checks that way, but
> > hard coding rules like that when it doesn't appear we have any
> > experience to indicate we need the extra functionality looks
> > premature.
> 
> Ok, in this case actually I suspect you're right and we can just ditch
> the exception.  But in general the security discussion is one we should
> still have.

People like security.

Where do we now stand with this patch, and with "[PATCH 4/8] user ns: hook permission"?
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