linux-kernel - Re: [RFC,PATCH 1/2] seccomp_filters: system call filtering using BPF

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Message-ID: <1326388674.7642.103.camel@gandalf.stny.rr.com>
Date:	Thu, 12 Jan 2012 12:17:54 -0500
From:	Steven Rostedt <rostedt@...dmis.org>
To:	Linus Torvalds <torvalds@...ux-foundation.org>
Cc:	Andrew Lutomirski <luto@....edu>, Will Drewry <wad@...omium.org>,
	linux-kernel@...r.kernel.org, keescook@...omium.org,
	john.johansen@...onical.com, serge.hallyn@...onical.com,
	coreyb@...ux.vnet.ibm.com, pmoore@...hat.com, eparis@...hat.com,
	djm@...drot.org, segoon@...nwall.com, jmorris@...ei.org,
	scarybeasts@...il.com, avi@...hat.com, penberg@...helsinki.fi,
	viro@...iv.linux.org.uk, mingo@...e.hu, akpm@...ux-foundation.org,
	khilman@...com, borislav.petkov@....com, amwang@...hat.com,
	oleg@...hat.com, ak@...ux.intel.com, eric.dumazet@...il.com,
	gregkh@...e.de, dhowells@...hat.com, daniel.lezcano@...e.fr,
	linux-fsdevel@...r.kernel.org,
	linux-security-module@...r.kernel.org, olofj@...omium.org,
	mhalcrow@...gle.com, dlaor@...hat.com
Subject: Re: [RFC,PATCH 1/2] seccomp_filters: system call filtering using BPF

On Thu, 2012-01-12 at 09:09 -0800, Linus Torvalds wrote:

> The whole "fail security escalations" thing goes way beyond just
> filtering, I think we could seriously try to make it a generic
> feature.

After I wrote this comment I thought the same thing. It would be nice to
have a way to just set a flag to a process that will prevent it from
doing any escalating of privileges.

I totally agree, this would solve a whole host of issues with regard to
security issues in things that shouldn't be a problem but currently are.

-- Steve




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