linux-kernel - Re: Nokia N900: insecure W+X mapping at 0xd0050000

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Message-ID: <20180308180516.GB16940@amd>
Date:   Thu, 8 Mar 2018 19:05:16 +0100
From:   Pavel Machek <pavel@....cz>
To:     Tony Lindgren <tony@...mide.com>
Cc:     pali.rohar@...il.com, sre@...nel.org,
        kernel list <linux-kernel@...r.kernel.org>,
        linux-arm-kernel <linux-arm-kernel@...ts.infradead.org>,
        linux-omap@...r.kernel.org, khilman@...nel.org,
        aaro.koskinen@....fi, ivo.g.dimitrov.75@...il.com,
        patrikbachan@...il.com, serge@...lyn.com, abcloriens@...il.com,
        clayton@...ftyguy.net, martijn@...xit.nl,
        sakari.ailus@...ux.intel.com,
        Filip Matijević <filip.matijevic.pz@...il.com>,
        Dave Gerlach <d-gerlach@...com>
Subject: Re: Nokia N900: insecure W+X mapping at 0xd0050000

Hi!

> > * Pavel Machek <pavel@....cz> [180308 06:29]:
> > > Insecure W+X mappings, who cares about those? I have 7 pages...
> > 
> > Is this with CONFIG_DEBUG_WX=y?
> > 
> > My guess is that it's for mapping the PM assembly to SRAM. This
> > is already fixed for am335x that is using drivers/misc/sram*.c.
> > I think omap2 - omap4 still need fixing if this is the culprit.
> 
> Adding Dave to Cc, here's a quick fix for this one.

I did a quick testing and warning is gone. Thanks!

Tested-by: Pavel Machek <pavel@....cz>

								Pavel

-- 
(english) http://www.livejournal.com/~pavelmachek
(cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html

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