From mboxrd@z Thu Jan  1 00:00:00 1970
From: Valdis.Kletnieks@vt.edu
Subject: Re: RFC: disablenetwork facility. (v4)
Date: Mon, 28 Dec 2009 16:28:01 -0500
Message-ID: <14362.1262035681@localhost>
References: <20091227190802.GH11737@elf.ucw.cz> <20091228060759.GB13266@heat> <20091228101006.GA19984@elf.ucw.cz> <8817.1262011044@localhost>
            <20091228205511.GD1637@ucw.cz>
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Cc: Michael Stone <michael@laptop.org>, linux-kernel@vger.kernel.org,
	netdev@vger.kernel.org, linux-security-module@vger.kernel.org,
	Andi Kleen <andi@firstfloor.org>, David Lang <david@lang.hm>,
	Oliver Hartkopp <socketcan@hartkopp.net>,
	Alan Cox <alan@lxorguk.ukuu.org.uk>,
	Herbert Xu <herbert@gondor.apana.org.au>,
	Bryan Donlan <bdonlan@gmail.com>,
	Evgeniy Polyakov <zbr@ioremap.net>,
	"C. Scott Ananian" <cscott@cscott.net>,
	James Morris <jmorris@namei.org>,
	"Eric W. Biederman" <ebiederm@xmission.com>,
	Bernie Innocenti <bernie@codewiz.org>,
	Mark Seaborn <mrs@mythic-beasts.com>,
	Randy Dunlap <randy.dunlap@oracle.com>,
	Am?rico Wang <xiyou.wangcong@gmail.com>,
	Tetsuo Handa <penguin-kernel@i-love.sakura.ne.jp>,
	Samir Bellabes <sam@synack.fr>,
	Casey Schaufler <casey@schaufler-ca.com>,
	"Serge E. Hallyn" <serue@us.ibm.com>
To: Pavel Machek <pavel@ucw.cz>
Return-path: <linux-security-module-owner@vger.kernel.org>
In-Reply-To: Your message of "Mon, 28 Dec 2009 21:55:11 +0100."
             <20091228205511.GD1637@ucw.cz>
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On Mon, 28 Dec 2009 21:55:11 +0100, Pavel Machek said:

> it is really only required for binaries setuid to someone else, but
> that would be too ugly. (Plus, as someone said, ping is great for
> leaking data out.)

Hmm... How is it "too ugly"?  It's just a 'euid != uid' comparison? Or
am I missing some contortion required?

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