linux-kernel - Re: [PATCH v2 3/9] sysctl: add unsigned int range support

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Message-ID: <CAGXu5jLtAjc+5UqEeFr6MxO72F+KN6MUtJmN_Xi5CESZoH6FRg@mail.gmail.com>
Date:   Mon, 13 Feb 2017 12:21:12 -0800
From:   Kees Cook <keescook@...omium.org>
To:     "Luis R. Rodriguez" <mcgrof@...nel.org>
Cc:     Al Viro <viro@...iv.linux.org.uk>,
        Andrew Morton <akpm@...ux-foundation.org>,
        "Eric W. Biederman" <ebiederm@...ssion.com>,
        Arnaldo Carvalho de Melo <acme@...hat.com>,
        Ingo Molnar <mingo@...nel.org>, Mel Gorman <mgorman@...e.de>,
        Subash Abhinov Kasiviswanathan <subashab@...eaurora.org>,
        Jessica Yu <jeyu@...hat.com>,
        Rusty Russell <rusty@...tcorp.com.au>,
        Steven Whitehouse <swhiteho@...hat.com>,
        deepa.kernel@...il.com, Matt Fleming <matt@...eblueprint.co.uk>,
        Alexey Dobriyan <adobriyan@...il.com>,
        Borislav Petkov <bp@...e.de>,
        Dmitry Torokhov <dmitry.torokhov@...il.com>, shuah@...nel.org,
        Linus Torvalds <torvalds@...ux-foundation.org>,
        Guenter Roeck <linux@...ck-us.net>,
        linux-kselftest@...r.kernel.org,
        LKML <linux-kernel@...r.kernel.org>,
        Heinrich Schuchardt <xypron.glpk@....de>,
        "David S. Miller" <davem@...emloft.net>,
        Ingo Molnar <mingo@...hat.com>
Subject: Re: [PATCH v2 3/9] sysctl: add unsigned int range support

On Fri, Feb 10, 2017 at 4:36 PM, Luis R. Rodriguez <mcgrof@...nel.org> wrote:
> To keep parity with regular int interfaces provide the an unsigned
> int proc_douintvec_minmax() which allows you to specify a range of
> allowed valid numbers.
>
> Adding proc_douintvec_minmax_sysadmin() is easy but we can wait for
> an actual user for that.
>
> Cc: Subash Abhinov Kasiviswanathan <subashab@...eaurora.org>
> Cc: Heinrich Schuchardt <xypron.glpk@....de>
> Cc: Kees Cook <keescook@...omium.org>
> Cc: "David S. Miller" <davem@...emloft.net>
> Cc: Ingo Molnar <mingo@...hat.com>
> Cc: Andrew Morton <akpm@...ux-foundation.org>
> Cc: Linus Torvalds <torvalds@...ux-foundation.org>
> Signed-off-by: Luis R. Rodriguez <mcgrof@...nel.org>

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

This looks sensible. :)

-Kees

-- 
Kees Cook
Pixel Security