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Date: Fri, 18 May 2018 09:00:07 -0700
From: Guenter Roeck <linux@roeck-us.net>
To: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: stable <stable@vger.kernel.org>
Subject: Re: Please apply dd83c161fbcc ("kernel/exit.c: avoid undefined
 behaviour when calling wait4()") to v4.9.y and older
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 <20180518145207.GB3569@kroah.com>
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On Fri, May 18, 2018 at 04:52:07PM +0200, Greg Kroah-Hartman wrote:
> On Fri, May 18, 2018 at 06:47:46AM -0700, Guenter Roeck wrote:
> > Hi Greg,
> > 
> > please apply commit dd83c161fbc ("kernel/exit.c: avoid undefined behaviour when calling wait4()")
> > to v4.9.y and older to fix CVE-2018-10087.
> 
> Odd no one asked for that one to be backported before :(
> 

Not entirely surprising. The patch is from July 2017, it wasn't marked
for stable, and the CVE has been created only recently (04/13/2018).
CVE severity and the reference to the upstream commit were added
yesterday, which caused our CVE tracker to barf at me.

Guenter