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

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Message-ID: <alpine.LFD.2.01.0905041159480.4983@localhost.localdomain>
Date:	Mon, 4 May 2009 12:00:12 -0700 (PDT)
From:	Linus Torvalds <torvalds@...ux-foundation.org>
To:	Jake Edge <jake@....net>
cc:	security@...nel.org, linux-kernel@...r.kernel.org,
	James Morris <jmorris@...ei.org>,
	linux-security-module@...r.kernel.org,
	Arjan van de Ven <arjan@...radead.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>,
	"Eric W. Biederman" <ebiederm@...ssion.com>
Subject: Re: [Security] [PATCH] proc: avoid information leaks to non-privileged
 processes



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?

		Linus
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