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Date:   Fri, 22 May 2020 13:55:56 -0700
From:   Dave Hansen <>
To:     Don Porter <>,
        Jarkko Sakkinen <>,
        Thomas Gleixner <>
Cc:     Andi Kleen <>, Sasha Levin <>,,,,,,,
Subject: Re: [PATCH v12 00/18] Enable FSGSBASE instructions

On 5/22/20 1:14 PM, Don Porter wrote:
> I wanted to clarify that we never intended the Graphene kernel module
> you mention for production use, as well as to comment in support of this
> patch.

Could you also clarify: Did you know that the FSGSBASE kernel module
introduced a root vulnerability?  Where did it come from in the first place?

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