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From: ebiederm@xmission.com (Eric W. Biederman)
To: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Adam Zabrocki <pi3@pi3.com.pl>,  Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,  Kernel Hardening <kernel-hardening@lists.openwall.com>,  Jann Horn <jannh@google.com>,  Oleg Nesterov <oleg@redhat.com>,  Andy Lutomirski <luto@amacapital.net>,  Bernd Edlinger <bernd.edlinger@hotmail.de>,  Kees Cook <keescook@chromium.org>,  Andrew Morton <akpm@linux-foundation.org>,  stable <stable@vger.kernel.org>
References: <20200324215049.GA3710@pi3.com.pl> <202003291528.730A329@keescook>
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Date: Wed, 01 Apr 2020 16:03:20 -0500
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	(Linus Torvalds's message of "Wed, 1 Apr 2020 13:55:11 -0700")
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Linus Torvalds <torvalds@linux-foundation.org> writes:

> On Wed, Apr 1, 2020 at 1:50 PM Eric W. Biederman <ebiederm@xmission.com> wrote:
>>
>> I have updated the update of exec_id on exec to use WRITE_ONCE
>> and the read of exec_id in do_notify_parent to use READ_ONCE
>> to make it clear that there is no locking between these two
>> locations.
>
> Ack, makes sense to me.
>
> Just put it in your branch, this doesn't look urgent, considering that
> it's something that has been around forever.

Done

Eric