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Date: Tue, 7 Sep 2010 12:57:14 -0700
From: Andrew Morton <>
To: Jon Oberheide <>,,,,
        Sebastian Krahmer
Subject: Re: [Security] Re:  /proc infoleaks

On Tue, 7 Sep 2010 12:46:56 -0700
Andrew Morton <> wrote:

> We're not going to change the kernel defaults, end of story - that
> would break far too much stuff.

That being said, it *might* be acceptable to obfuscate the kernel-side
addresses.  Still print them, but they're all zeroes.  I doubt if many
tools at all are actually using those.  Perhaps a runtime knob which
obfuscates those addresses for unprivileged users, something like that.

That also being said, I'm not seeing any kernel-side addresses in
slabinfo or zoneinfo anyway and I believe some distros already hide
kallsyms.  More specificity is needed.

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