linux-kernel - Re: [PATCH 1/8] staging: dream: fix information leak to userland

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Message-ID: <20101028205831.GD19421@elf.ucw.cz>
Date:	Thu, 28 Oct 2010 22:58:31 +0200
From:	Pavel Machek <pavel@....cz>
To:	Greg KH <greg@...ah.com>
Cc:	Vasiliy Kulikov <segooon@...il.com>,
	Iliyan Malchev <ibm@...roid.com>,
	Brian Swetland <swetland@...gle.com>,
	San Mehat <san@...roid.com>, kernel-janitors@...r.kernel.org,
	Tejun Heo <tj@...nel.org>, devel@...verdev.osuosl.org,
	Greg Kroah-Hartman <gregkh@...e.de>,
	linux-kernel@...r.kernel.org, Arnd Bergmann <arnd@...db.de>
Subject: Re: [PATCH 1/8] staging: dream: fix information leak to userland

Hi!

> > Structure msm_audio_stats is copied to userland with some fields unitialized.
> > It leads to leaking of contents of kernel stack memory.
> > Also struct msm_audio_config has field "unused" of type array of 3 elements,
> > not 4.  Instead of this, initialize field "type".
> > 
> > Signed-off-by: Vasiliy Kulikov <segooon@...il.com>
> > ---
> >  drivers/staging/dream/qdsp5/audio_aac.c |    3 ++-
> 
> {sigh}
> 
> I'd really like to just drop this whole driver as I feel it's _way_
> behind whatever anyone is really using "in the wild".
> 
> Actually, I doubt that anyone even uses this thing, do they?

Not sure, you should definitely talk to codeaurora folks.

> Any objection to me just dropping the drivers/staging/dream/ tree?
> People should be working on the chipset-specific driver tree here
> instead, right?

codeaurora people should know...

> Pavel, it looks like you're not doing any dream work anymore, any
> problems with me dropping it?

Too busy to do any real work on Dream, sorry :-(.
								Pavel
-- 
(english) http://www.livejournal.com/~pavelmachek
(cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html
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