From mboxrd@z Thu Jan  1 00:00:00 1970
Return-Path: <linux-kernel-owner@vger.kernel.org>
Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand
        id S932527AbdCFT7V (ORCPT <rfc822;w@1wt.eu>);
        Mon, 6 Mar 2017 14:59:21 -0500
Received: from mail-yw0-f196.google.com ([209.85.161.196]:35135 "EHLO
        mail-yw0-f196.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org
        with ESMTP id S1754047AbdCFT7N (ORCPT
        <rfc822;linux-kernel@vger.kernel.org>);
        Mon, 6 Mar 2017 14:59:13 -0500
Date: Mon, 6 Mar 2017 14:55:58 -0500
From: Tejun Heo <tj@kernel.org>
To: Elena Reshetova <elena.reshetova@intel.com>
Cc: linux-kernel@vger.kernel.org, cgroups@vger.kernel.org,
        linux-audit@redhat.com, linux-fsdevel@vger.kernel.org,
        peterz@infradead.org, gregkh@linuxfoundation.org,
        viro@zeniv.linux.org.uk, mingo@redhat.com, hannes@cmpxchg.org,
        lizefan@huawei.com, acme@kernel.org,
        alexander.shishkin@linux.intel.com, paul@paul-moore.com,
        eparis@redhat.com, akpm@linux-foundation.org, arnd@arndb.de,
        luto@kernel.org, Hans Liljestrand <ishkamiel@gmail.com>,
        Kees Cook <keescook@chromium.org>, David Windsor <dwindsor@gmail.com>
Subject: Re: [PATCH 11/19] kernel: convert cgroup_namespace.count from
 atomic_t to refcount_t
Message-ID: <20170306195558.GE19696@htj.duckdns.org>
References: <1487585948-6401-1-git-send-email-elena.reshetova@intel.com>
 <1487585948-6401-12-git-send-email-elena.reshetova@intel.com>
MIME-Version: 1.0
Content-Type: text/plain; charset=us-ascii
Content-Disposition: inline
In-Reply-To: <1487585948-6401-12-git-send-email-elena.reshetova@intel.com>
User-Agent: Mutt/1.7.1 (2016-10-04)
Sender: linux-kernel-owner@vger.kernel.org
List-ID: <linux-kernel.vger.kernel.org>
X-Mailing-List: linux-kernel@vger.kernel.org

On Mon, Feb 20, 2017 at 12:19:00PM +0200, Elena Reshetova wrote:
> refcount_t type and corresponding API should be
> used instead of atomic_t when the variable is used as
> a reference counter. This allows to avoid accidental
> refcounter overflows that might lead to use-after-free
> situations.
> 
> Signed-off-by: Elena Reshetova <elena.reshetova@intel.com>
> Signed-off-by: Hans Liljestrand <ishkamiel@gmail.com>
> Signed-off-by: Kees Cook <keescook@chromium.org>
> Signed-off-by: David Windsor <dwindsor@gmail.com>

Applied to cgroup/for-4.12.

Thanks.

-- 
tejun