linux-kernel - Re: [PATCH v2 2/2] rusage: allow 64-bit times ru_utime/ru

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Message-ID: <20180624071258.GB29407@gmail.com>
Date:   Sun, 24 Jun 2018 09:12:58 +0200
From:   Ingo Molnar <mingo@...nel.org>
To:     "Eric W. Biederman" <ebiederm@...ssion.com>
Cc:     Arnd Bergmann <arnd@...db.de>,
        y2038 Mailman List <y2038@...ts.linaro.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        the arch/x86 maintainers <x86@...nel.org>,
        Linux API <linux-api@...r.kernel.org>,
        linux-arch <linux-arch@...r.kernel.org>,
        Paul Eggert <eggert@...ucla.edu>,
        Richard Henderson <rth@...ddle.net>,
        Ivan Kokshaysky <ink@...assic.park.msu.ru>,
        Matt Turner <mattst88@...il.com>,
        Al Viro <viro@...iv.linux.org.uk>,
        Dominik Brodowski <linux@...inikbrodowski.net>,
        Thomas Gleixner <tglx@...utronix.de>,
        Andrew Morton <akpm@...ux-foundation.org>,
        linux-alpha@...r.kernel.org,
        Deepa Dinamani <deepa.kernel@...il.com>
Subject: Re: [PATCH v2 2/2] rusage: allow 64-bit times ru_utime/ru_stime


* Eric W. Biederman <ebiederm@...ssion.com> wrote:

> The trouble with attributes is that means you can't filter your system
> call arguments with seccomp. [...]

There's nothing keeping seccomp from securely fetching those arguments and 
extending filtering to them as well ...

Allowing that would make sense for a lot of other system calls as well.

Thanks,

	Ingo