From: Pavel Machek <pavel@ucw.cz>
To: Tony Lindgren <tony@atomide.com>
Cc: pali.rohar@gmail.com, sre@kernel.org,
"kernel list" <linux-kernel@vger.kernel.org>,
linux-arm-kernel <linux-arm-kernel@lists.infradead.org>,
linux-omap@vger.kernel.org, khilman@kernel.org,
aaro.koskinen@iki.fi, ivo.g.dimitrov.75@gmail.com,
patrikbachan@gmail.com, serge@hallyn.com, abcloriens@gmail.com,
clayton@craftyguy.net, martijn@brixit.nl,
sakari.ailus@linux.intel.com,
"Filip Matijević" <filip.matijevic.pz@gmail.com>,
"Dave Gerlach" <d-gerlach@ti.com>
Subject: Re: Nokia N900: insecure W+X mapping at 0xd0050000
Date: Thu, 8 Mar 2018 19:05:16 +0100 [thread overview]
Message-ID: <20180308180516.GB16940@amd> (raw)
In-Reply-To: <20180308164652.GL5799@atomide.com>
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Hi!
> > * Pavel Machek <pavel@ucw.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@ucw.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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From: pavel@ucw.cz (Pavel Machek)
To: linux-arm-kernel@lists.infradead.org
Subject: Nokia N900: insecure W+X mapping at 0xd0050000
Date: Thu, 8 Mar 2018 19:05:16 +0100 [thread overview]
Message-ID: <20180308180516.GB16940@amd> (raw)
In-Reply-To: <20180308164652.GL5799@atomide.com>
Hi!
> > * Pavel Machek <pavel@ucw.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@ucw.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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next prev parent reply other threads:[~2018-03-08 18:05 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-03-08 14:28 Nokia N900: insecure W+X mapping at 0xd0050000 Pavel Machek
2018-03-08 14:28 ` Pavel Machek
2018-03-08 16:24 ` Tony Lindgren
2018-03-08 16:24 ` Tony Lindgren
2018-03-08 16:46 ` Tony Lindgren
2018-03-08 16:46 ` Tony Lindgren
2018-03-08 18:05 ` Pavel Machek [this message]
2018-03-08 18:05 ` Pavel Machek
2018-03-21 15:24 ` Tony Lindgren
2018-03-21 15:24 ` Tony Lindgren
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