linux-kernel - Re: [PATCH 2/3] iio: mxs-lradc: fix invalid channel number detection

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Date:	Tue, 14 Jan 2014 00:43:14 +0100
From:	Alexandre Belloni <alexandre.belloni@...e-electrons.com>
To:	Marek Vasut <marex@...x.de>
CC:	Jonathan Cameron <jic23@...nel.org>, linux-iio@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH 2/3] iio: mxs-lradc: fix invalid channel number detection

On 13/01/2014 21:25, Marek Vasut wrote:
> On Monday, January 13, 2014 at 05:02:02 PM, Alexandre Belloni wrote:
>> 16 would be accepted as a channel number but it is invalid. It doesn't
>> really have any effect as mxs_lradc_read_raw is called from a "controlled"
>> environment so it it only gets values going from 0 to 15.
>>
>> Signed-off-by: Alexandre Belloni <alexandre.belloni@...e-electrons.com>
> 
> Why don't you remove the check entirely then ?
> 

I'm not quite sure the inkernel API is sanitizing the input correctly
but maybe I didn't check enough. Maybe Jonathan can comment ?

-- 
Alexandre Belloni, Free Electrons
Embedded Linux, Kernel and Android engineering
http://free-electrons.com
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/