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Date: Wed, 1 Apr 2020 13:55:11 -0700
From: Linus Torvalds <>
To: "Eric W. Biederman" <>
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

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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