linux-kernel - Re: [PATCH v2] kernel: Conditionally support non-root users, groups and capabilities

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Message-ID: <54CD6643.2060504@nod.at>
Date:	Sun, 01 Feb 2015 00:33:23 +0100
From:	Richard Weinberger <richard@....at>
To:	paulmck@...ux.vnet.ibm.com,
	Richard Weinberger <richard.weinberger@...il.com>
CC:	Josh Triplett <josh@...htriplett.org>,
	Casey Schaufler <casey@...aufler-ca.com>,
	Iulia Manda <iulia.manda21@...il.com>,
	One Thousand Gnomes <gnomes@...rguk.ukuu.org.uk>,
	Serge Hallyn <serge.hallyn@...onical.com>,
	LKML <linux-kernel@...r.kernel.org>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Peter Zijlstra <peterz@...radead.org>,
	Michal Hocko <mhocko@...e.cz>,
	LSM <linux-security-module@...r.kernel.org>
Subject: Re: [PATCH v2] kernel: Conditionally support non-root users, groups
 and capabilities

Am 01.02.2015 um 00:30 schrieb Paul E. McKenney:
> On Fri, Jan 30, 2015 at 10:56:14PM +0100, Richard Weinberger wrote:
>> On Fri, Jan 30, 2015 at 10:40 PM, Josh Triplett <josh@...htriplett.org> wrote:
>>> *Today*, Linux is a challenging choice for a tiny embedded system.
>>> We're trying to fix that.
>>
>> Can you please more specific about the embedded systems exactly you're
>> talking about?
>>
>> I find this patch rather controversial as it removes a lot of security.
>> Embedded systems *are* a target for all kind of attacks.
>> Misguided embedded engineers will abuse this feature and produce even more
>> weak targets.
> 
> Without this patch, those same engineers would simply run everything as
> root.  "Make a foolproof system, and they will invent a better fool".  ;-)

Luckily many services will run as non-root by default and some even refuse to
run as root. :-)

Thanks,
//richard
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