linux-kernel - Re: [PATCH][V2] UBI: block: fix dereference on uninitialized dev

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Message-ID: <1410172009.10764.135.camel@sauron.fi.intel.com>
Date:	Mon, 08 Sep 2014 13:26:49 +0300
From:	Artem Bityutskiy <dedekind1@...il.com>
To:	Ezequiel Garcia <ezequiel.garcia@...e-electrons.com>
Cc:	Colin King <colin.king@...onical.com>,
	David Woodhouse <dwmw2@...radead.org>,
	Brian Norris <computersforpeace@...il.com>,
	linux-mtd@...ts.infradead.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH][V2] UBI: block: fix dereference on uninitialized dev

On Thu, 2014-08-21 at 16:12 -0300, Ezequiel Garcia wrote:
> On 20 Aug 10:19 AM, Colin King wrote:
> > From: Colin Ian King <colin.king@...onical.com>
> > 
> > commit 4df38926f337 ("UBI: block: Avoid disk size integer overflow")
> > introduced a dereference on dev (which is not initialized at that
> > point) when printing a warning message.  Re-order disk_capacity check
> > after the dev is found.
> > 
> > Found by cppcheck:
> >  [drivers/mtd/ubi/block.c:509]: (error) Uninitialized variable: dev
> > 
> > Signed-off-by: Colin Ian King <colin.king@...onical.com>
> 
> Acked-by: Ezequiel Garcia <ezequiel.garcia@...e-electrons.com>

Do we want to have this patch in @stable?

-- 
Best Regards,
Artem Bityutskiy

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