linux-kernel - Re: [PATCH v5 4/6] seccomp: move no_new

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Message-ID: <CALCETrVUfQasAX_JsRZ-HVbMjtxVJT2svwHk9vUOFdoB8H0kjw@mail.gmail.com>
Date:	Thu, 22 May 2014 16:08:45 -0700
From:	Andy Lutomirski <luto@...capital.net>
To:	Kees Cook <keescook@...omium.org>
Cc:	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	Oleg Nesterov <oleg@...hat.com>,
	Alexander Viro <viro@...iv.linux.org.uk>,
	Peter Zijlstra <peterz@...radead.org>,
	James Morris <james.l.morris@...cle.com>,
	Eric Paris <eparis@...hat.com>,
	Juri Lelli <juri.lelli@...il.com>,
	John Stultz <john.stultz@...aro.org>,
	"David S. Miller" <davem@...emloft.net>,
	Daniel Borkmann <dborkman@...hat.com>,
	Alex Thorlton <athorlton@....com>,
	Rik van Riel <riel@...hat.com>,
	Daeseok Youn <daeseok.youn@...il.com>,
	David Rientjes <rientjes@...gle.com>,
	"Eric W. Biederman" <ebiederm@...ssion.com>,
	Dario Faggioli <raistlin@...ux.it>,
	Rashika Kheria <rashika.kheria@...il.com>,
	liguang <lig.fnst@...fujitsu.com>,
	Geert Uytterhoeven <geert@...ux-m68k.org>,
	"linux-doc@...r.kernel.org" <linux-doc@...r.kernel.org>,
	LSM List <linux-security-module@...r.kernel.org>
Subject: Re: [PATCH v5 4/6] seccomp: move no_new_privs into seccomp

On Thu, May 22, 2014 at 4:05 PM, Kees Cook <keescook@...omium.org> wrote:
> Since seccomp transitions between threads requires updates to the
> no_new_privs flag to be atomic, changes must be atomic. This moves the nnp
> flag into the seccomp field as a separate unsigned long for atomic access.
>
> Signed-off-by: Kees Cook <keescook@...omium.org>

Acked-by: Andy Lutomirski <luto@...capital.net>
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