Re: [PATCH v2] sysctl: control functionality of /proc/pid/mem

From: Kees Cook
Date: Mon Jan 23 2012 - 13:12:21 EST


On Mon, Jan 23, 2012 at 6:41 AM, Eric W. Biederman
<ebiederm@xxxxxxxxxxxx> wrote:
>> +#ifdef CONFIG_PROC_FS
>    ^^^^^^^^^^^^^^^^^^^^^^
>
> That ifdef is entertaining.  CONFIG_SYSCTL depends on CONFIG_PROC_FS
> so which interesting case did you imagine this ifdef would be false?
> Did you test to ensure the code is not compiled in that interesting case?

I noticed that when I added it, and decided to err on the side of more
configs if some day /proc/sys got moved out of /proc. Anyway, I can
easily remove it. v3 coming up...

-Kees

--
Kees Cook
ChromeOS Security
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