From: Giuliano Gagliardi <gogi-k@gogi.tv>
To: linux-kernel@vger.kernel.org
Subject: Re: One process with multiple user ids.
Date: Tue, 2 Oct 2007 13:34:34 +0200 [thread overview]
Message-ID: <200710021334.34950.gogi-k@gogi.tv> (raw)
In-Reply-To: <Pine.LNX.4.64.0710021322110.7130@fbirervta.pbzchgretzou.qr>
On Tuesday 02 October 2007, Jan Engelhardt wrote:
> On Oct 2 2007 12:56, Giuliano Gagliardi wrote:
> >I have a server that has to switch to different user ids, but because it
> > does other complex things, I would rather not have it run as root. I only
> > need the server to be able to switch to certain pre-defined user ids.
>
> All you need is CAP_SETUID. Also see man setresuid,
> where you could, I think, use saved_uid=0 if you do not
> like to use real_uid=0 effective_uid=non-0.
But CAP_SETUID would let me change to any uid, would it not? I would like my
process to have no possibility to change to any uid, except some predefined
set, so that in case of a security hole only those uids could be compromised.
next prev parent reply other threads:[~2007-10-02 11:34 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-10-02 10:56 Giuliano Gagliardi
2007-10-02 11:23 ` Jan Engelhardt
[not found] ` <200710021333.05826.gogi-k@gogi.tv>
2007-10-02 11:34 ` Jan Engelhardt
2007-10-02 11:39 ` Giuliano Gagliardi
2007-10-02 11:52 ` Jan Engelhardt
2007-10-02 11:34 ` Giuliano Gagliardi [this message]
2007-10-02 13:23 ` Mark Lord
2007-10-08 10:15 ` Helge Hafting
2007-10-02 17:11 ` Chris Snook
2007-10-02 22:23 ` David Newall
2007-10-02 22:38 ` Bill Davidsen
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