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Date: Wed, 01 Apr 2020 16:03:20 -0500
From: (Eric W. Biederman)
To: Linus Torvalds <>
Cc: Adam Zabrocki <>,  Linux Kernel Mailing List <>,  Kernel Hardening <>,  Jann Horn <>,  Oleg Nesterov <>,  Andy Lutomirski <>,  Bernd Edlinger <>,  Kees Cook <>,  Andrew Morton <>,  stable <>
Subject: Re: [PATCH] signal: Extend exec_id to 64bits

Linus Torvalds <> writes:

> On Wed, Apr 1, 2020 at 1:50 PM Eric W. Biederman <> 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.



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