linux-kernel - Re: security: introduce file caps

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Message-Id: <20061123002207.5e18bade.akpm@osdl.org>
Date:	Thu, 23 Nov 2006 00:22:07 -0800
From:	Andrew Morton <akpm@...l.org>
To:	"Serge E. Hallyn" <serue@...ibm.com>, linux-kernel@...r.kernel.org,
	linux-security-module@...r.kernel.org,
	Stephen Smalley <sds@...ho.nsa.gov>,
	James Morris <jmorris@...ei.org>,
	Chris Wright <chrisw@...s-sol.org>,
	KaiGai Kohei <kaigai@...gai.gr.jp>,
	Chris Friedhoff <chris@...edhoff.org>,
	Alexey Dobriyan <adobriyan@...il.com>
Subject: Re: security: introduce file caps

On Thu, 23 Nov 2006 00:14:58 -0800
Andrew Morton <akpm@...l.org> wrote:

> On Mon, 13 Nov 2006 21:06:55 -0600
> "Serge E. Hallyn" <serue@...ibm.com> wrote:
> 
> > Implement file posix capabilities.  This allows programs to be given
> > a subset of root's powers regardless of who runs them, without
> > having to use setuid and giving the binary all of root's powers.
> 
> With this patch applied, my X server fails to exit when I do the normal
> logout thing from the KDE menus.

After a manual kill of the X server I see on the VT:

xinit: Operation not permitted (errno 1): Can't kill X server

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