linux-kernel - Re: [REPOST][RFC][PATCH] sysctl: Remove the sysctl system call

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Message-ID: <201910031404.C30A0F16@keescook>
Date:   Thu, 3 Oct 2019 14:05:24 -0700
From:   Kees Cook <keescook@...omium.org>
To:     "Eric W. Biederman" <ebiederm@...ssion.com>
Cc:     Florian Weimer <fw@...eb.enyo.de>, linux-kernel@...r.kernel.org,
        linux-arch@...r.kernel.org, linux-api@...r.kernel.org,
        Jann Horn <jannh@...gle.com>, Arnd Bergmann <arnd@...db.de>,
        Helge Deller <deller@....de>
Subject: Re: [REPOST][RFC][PATCH] sysctl: Remove the sysctl system call

On Thu, Oct 03, 2019 at 03:44:32PM -0500, Eric W. Biederman wrote:
> 
> This system call has been deprecated almost since it was introduced, and none
> of the common distributions enable it.  The only indication that I can find that
> anyone might care is that a few of the defconfigs in the kernel enable it.  However
> that is a small fractions of the defconfigs so I suspect it just a lack of care
> rather than a reflection of software using the the sysctl system call.
> 
> As there appear to be no users of the sysctl system call, remove the
> code so that the proc filesystem can be simplified.

nitpick: line lengths near 80 characters

> Signed-off-by: "Eric W. Biederman" <ebiederm@...ssion.com>

But, yes, I would love to see this gone. :)

Reviewed-by: Kees Cook <keescook@...omium.org>

-- 
Kees Cook