linux-kernel - Re: [Security] [PATCH] proc: avoid information leaks to non-privileged processes

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Message-ID: <m1vdogbows.fsf@fess.ebiederm.org>
Date:	Mon, 04 May 2009 13:20:51 -0700
From:	ebiederm@...ssion.com (Eric W. Biederman)
To:	Arjan van de Ven <arjan@...radead.org>
Cc:	Linus Torvalds <torvalds@...ux-foundation.org>,
	Jake Edge <jake@....net>, security@...nel.org,
	linux-kernel@...r.kernel.org, James Morris <jmorris@...ei.org>,
	linux-security-module@...r.kernel.org,
	Eric Paris <eparis@...hat.com>,
	Alan Cox <alan@...rguk.ukuu.org.uk>,
	Roland McGrath <roland@...hat.com>, mingo@...hat.com,
	Andrew Morton <akpm@...ux-foundation.org>,
	Greg KH <greg@...ah.com>
Subject: Re: [Security] [PATCH] proc: avoid information leaks to non-privileged processes

Arjan van de Ven <arjan@...radead.org> writes:

> On Mon, 4 May 2009 12:00:12 -0700 (PDT)
> Linus Torvalds <torvalds@...ux-foundation.org> wrote:
>
>> 
>> 
>> On Mon, 4 May 2009, Jake Edge wrote:
>> >
>> > This is essentially v2 of "[PATCH] proc: avoid leaking eip, esp, or
>> > wchan to non-privileged processes", adding some of Eric Biederman's
>> > suggestions as well as the start_stack change (only give out that
>> > address if the process is ptrace()-able).  This has been tested
>> > with ps and top without any ill effects being seen.
>> 
>> Looks sane to me. Anybody objects?
>> 
>
> Acked-by: Arjan van de Ven <arjan@...ux.intel.com>

Looks sane here.

Acked-by: "Eric W. Biederman" <ebiederm@...ssion.com>

Eric
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