linux-kernel - Re: [kernel-hardening] [PATCH v4] scripts: add leaking

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Message-ID: <20171108224832.GD27823@eros>
Date:   Thu, 9 Nov 2017 09:48:32 +1100
From:   "Tobin C. Harding" <me@...in.cc>
To:     Michael Ellerman <mpe@...erman.id.au>
Cc:     kernel-hardening@...ts.openwall.com,
        "Jason A. Donenfeld" <Jason@...c4.com>,
        Theodore Ts'o <tytso@....edu>,
        Linus Torvalds <torvalds@...ux-foundation.org>,
        Kees Cook <keescook@...omium.org>,
        Paolo Bonzini <pbonzini@...hat.com>,
        Tycho Andersen <tycho@...ker.com>,
        "Roberts, William C" <william.c.roberts@...el.com>,
        Tejun Heo <tj@...nel.org>,
        Jordan Glover <Golden_Miller83@...tonmail.ch>,
        Greg KH <gregkh@...uxfoundation.org>,
        Petr Mladek <pmladek@...e.com>, Joe Perches <joe@...ches.com>,
        Ian Campbell <ijc@...lion.org.uk>,
        Sergey Senozhatsky <sergey.senozhatsky@...il.com>,
        Catalin Marinas <catalin.marinas@....com>,
        Will Deacon <wilal.deacon@....com>,
        Steven Rostedt <rostedt@...dmis.org>,
        Chris Fries <cfries@...gle.com>,
        Dave Weinstein <olorin@...gle.com>,
        Daniel Micay <danielmicay@...il.com>,
        Djalal Harouni <tixxdz@...il.com>,
        linux-kernel@...r.kernel.org,
        Network Development <netdev@...r.kernel.org>,
        David Miller <davem@...emloft.net>
Subject: Re: [kernel-hardening] [PATCH v4] scripts: add leaking_addresses.pl

On Wed, Nov 08, 2017 at 11:10:56PM +1100, Michael Ellerman wrote:
> "Tobin C. Harding" <me@...in.cc> writes:
[snip]

Hi Michael,

I'm working an adding support for ppc64 to leaking_addresses.pl, I've
added the kernel address regular expression that you suggested. I'd like
to add the false positive for vsyscall addresses. Excuse my ignorance
but does PowerPC use a constant address range for vsyscall like x86_64
does? The ppc64 machine I have access to does not output anything for

	$ cat /proc/PID/tasks/PID/smaps		or
	$ cat /proc/PID/tasks/PID/maps

thanks,
Tobin.