linux-kernel - Re: [PATCH] don't allow CAP_NET_ADMIN to load non-netdev kernel modules

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Message-Id: <20110225.111606.115927805.davem@davemloft.net>
Date:	Fri, 25 Feb 2011 11:16:06 -0800 (PST)
From:	David Miller <davem@...emloft.net>
To:	bhutchings@...arflare.com
Cc:	segoon@...nwall.com, netdev@...r.kernel.org,
	linux-kernel@...r.kernel.org, kuznet@....inr.ac.ru,
	pekkas@...core.fi, jmorris@...ei.org, yoshfuji@...ux-ipv6.org,
	kaber@...sh.net, eric.dumazet@...il.com, therbert@...gle.com,
	xiaosuo@...il.com, jesse@...ira.com, kees.cook@...onical.com,
	eugene@...hat.com, dan.j.rosenberg@...il.com,
	akpm@...ux-foundation.org
Subject: Re: [PATCH] don't allow CAP_NET_ADMIN to load non-netdev kernel
 modules

From: Ben Hutchings <bhutchings@...arflare.com>
Date: Fri, 25 Feb 2011 19:07:59 +0000

> You realise that module loading doesn't actually run in the context of
> request_module(), right?

Why is that a barrier?  We could simply pass a capability mask into
request_module if necessary.

It's an implementation detail, and not a deterrant to my suggested
scheme.
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