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Date:   Wed, 1 Apr 2020 11:29:08 +0200
From:   Greg KH <gregkh@linuxfoundation.org>
To:     "Schmid, Carsten" <Carsten_Schmid@mentor.com>
Cc:     "sashal@kernel.org" <sashal@kernel.org>,
        "stable@vger.kernel.org" <stable@vger.kernel.org>
Subject: Re: [PATCH Backport to stable/linux-4.14.y] make
 'user_access_begin()' do 'access_ok()'
Message-ID: <20200401092908.GA2055942@kroah.com>
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 <1585733082992.99012@mentor.com>
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On Wed, Apr 01, 2020 at 09:24:43AM +0000, Schmid, Carsten wrote:
> >From eb5a13ddc30824c20f1e2b662d2c821ad3808526 Mon Sep 17 00:00:00 2001
> From: Linus Torvalds <torvalds@linux-foundation.org>
> Date: Fri, 4 Jan 2019 12:56:09 -0800
> Subject: [PATCH] make 'user_access_begin()' do 'access_ok()'
> 
> [ Upstream commit 594cc251fdd0d231d342d88b2fdff4bc42fb0690 ]
> 
> Fixes CVE-2018-20669
> Backported from v5.0-rc1
> Patch 1/1

What about 4.19?

thanks,

greg k-h