linux-kernel - Re: [PATCH v3] fs: introduce pipe-only dump mode suid

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Message-ID: <alpine.LRH.2.02.1206231729320.16738@tundra.namei.org>
Date:	Sat, 23 Jun 2012 17:30:48 +1000 (EST)
From:	James Morris <jmorris@...ei.org>
To:	Kees Cook <keescook@...omium.org>
cc:	Andrew Morton <akpm@...ux-foundation.org>,
	linux-kernel@...r.kernel.org, Alan Cox <alan@...ux.intel.com>,
	"Eric W. Biederman" <ebiederm@...ssion.com>,
	Alexander Viro <viro@...iv.linux.org.uk>,
	Rob Landley <rob@...dley.net>, Ingo Molnar <mingo@...hat.com>,
	Peter Zijlstra <peterz@...radead.org>,
	Doug Ledford <dledford@...hat.com>,
	Marcel Holtmann <marcel@...tmann.org>,
	Serge Hallyn <serge.hallyn@...onical.com>,
	Joe Korty <joe.korty@...r.com>,
	David Howells <dhowells@...hat.com>,
	James Morris <james.l.morris@...cle.com>,
	linux-doc@...r.kernel.org, linux-fsdevel@...r.kernel.org
Subject: Re: [PATCH v3] fs: introduce pipe-only dump mode suid_dumpable=3

On Fri, 22 Jun 2012, Kees Cook wrote:

> Okay, sounds good. Should mode 3 added with mode 2 removed, or just
> drop the dangerous behavior from mode 2? I will be loud in either
> situation (e.g. with mode 3, setting mode 2 shouts, or when attempt to
> write to disk in mode 2, shout).

I'd prefer to drop the dangerous behavior.



-- 
James Morris
<jmorris@...ei.org>
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