linux-kernel - Re: [PATCH] thermal: Fix for setting the thermal zone mode to enable/disable

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Message-ID: <CACLa4pts46gZmx=cGWF9UuHh-VpeoG9e2MmJR=xTn7sFxiFyjw@mail.gmail.com>
Date:	Wed, 21 Mar 2012 10:47:52 -0400
From:	Eric Paris <eparis@...isplace.org>
To:	Jean Delvare <khali@...ux-fr.org>
Cc:	Amit Daniel Kachhap <amit.kachhap@...aro.org>,
	linux-pm@...ts.linux-foundation.org, linux-kernel@...r.kernel.org,
	linux-acpi@...r.kernel.org, lenb@...nel.org,
	linaro-dev@...ts.linaro.org, patches@...aro.org
Subject: Re: [PATCH] thermal: Fix for setting the thermal zone mode to enable/disable

On Wed, Mar 21, 2012 at 10:13 AM, Jean Delvare <khali@...ux-fr.org> wrote:
> On Wed, 21 Mar 2012 16:40:01 +0530, Amit Daniel Kachhap wrote:
>> Basically without this patch changing the mode of thermal zone
>> is not possible as wrong string size is passed to strncmp.
>
> Actually it is possible,
> $ echo -n disabled > mode
> works fine. But it fails without the -n, your patch would fix that.
>
> Acked-by: Jean Delvare <khali@...ux-fr.org>
>
> Note that a quick grep suggests that drivers/misc/ad525x_dpot.c,
> security/selinux/hooks.c and arch/m68k/sun3/prom/console.c suffer from
> the same issue, if you want to fix them too.

I do see that we use sizeof() for strings in the selinux code, but I
don't see a place that it is a bug.  If you see a bug let me know and
I'd be happy to fix it!

-Eric
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