From: One Thousand Gnomes <gnomes@lxorguk.ukuu.org.uk>
To: Daniel Vetter <daniel@ffwll.ch>
Cc: Heinrich Schuchardt <xypron.glpk@gmx.de>,
Patrik Jakobsson <patrik.r.jakobsson@gmail.com>,
linux-kernel@vger.kernel.org, dri-devel@lists.freedesktop.org
Subject: Re: [PATCH] drm/gma500: dont expose bytes from kernel stack
Date: Mon, 22 Aug 2016 10:16:32 +0100 [thread overview]
Message-ID: <20160822101632.5c8f9ccb@lxorguk.ukuu.org.uk> (raw)
In-Reply-To: <20160822072917.GD6232@phenom.ffwll.local>
On Mon, 22 Aug 2016 09:29:17 +0200
Daniel Vetter <daniel@ffwll.ch> wrote:
> On Sun, Aug 21, 2016 at 08:39:38PM +0200, Heinrich Schuchardt wrote:
> > Components m1, m2, p2, dot, vco of variable clock should be
> > initialized to avoid bytes from the kernel stack to be
> > exposed.
> >
> > Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
>
> Might be a silly question, but where exactly would we expose these bytes?
> This isn't directly called by an ioctl, I have no idea how those bytes
> might get to userspace ...
mrst_print_pll displays clock.p2 - which is indeed never cleared 8)
Alan
next prev parent reply other threads:[~2016-08-22 9:16 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-08-21 18:39 [PATCH] drm/gma500: dont expose bytes from kernel stack Heinrich Schuchardt
2016-08-21 18:46 ` Joe Perches
2016-08-21 19:35 ` Heinrich Schuchardt
2016-08-21 19:38 ` Joe Perches
2016-08-22 7:29 ` Daniel Vetter
2016-08-22 9:16 ` One Thousand Gnomes [this message]
2016-08-22 8:32 ` Jani Nikula
2016-08-22 13:45 ` kbuild test robot
2016-08-22 17:18 ` kbuild test robot
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