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

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Message-ID: <20101028210802.GA23773@kroah.com>
Date:	Thu, 28 Oct 2010 14:08:02 -0700
From:	Greg KH <greg@...ah.com>
To:	Pavel Machek <pavel@....cz>
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

On Thu, Oct 28, 2010 at 10:58:31PM +0200, Pavel Machek wrote:
> 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...

Which specific ones?  No one seems to be contributing to the
drivers/staging/dream/ anymore, and there are a number of out-of-tree
dream trees floating around now.

> > 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 :-(.

Ok, I think I'll just drop it unless someone screams.

thanks,

greg k-h
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