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

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Message-ID: <20120112171145.31e84b44@pyramind.ukuu.org.uk>
Date:	Thu, 12 Jan 2012 17:11:45 +0000
From:	Alan Cox <alan@...rguk.ukuu.org.uk>
To:	Will Drewry <wad@...omium.org>
Cc:	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,
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	daniel.lezcano@...e.fr, linux-fsdevel@...r.kernel.org,
	linux-security-module@...r.kernel.org, olofj@...omium.org,
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Subject: Re: [RFC,PATCH 1/2] seccomp_filters: system call filtering using
 BPF

> more about).  Since setuid is privilege escalation, then perhaps it
> makes sense to allow it as an escape hatch.
> 
> Would it be sane to just disallow setuid exec exclusively?

I think that is a policy question. I can imagine cases where either
behaviour is the "right" one so it may need to be a parameter ?

Alan
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