linux-kernel - Re: CVE-2024-35802: x86/sev: Fix position dependent variable references in startup code

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Message-ID: <5ea91ae6-091d-4378-950b-833561eef48c@suse.com>
Date: Thu, 23 May 2024 15:01:56 +0300
From: Nikolay Borisov <nik.borisov@...e.com>
To: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Cc: cve@...nel.org, linux-kernel@...r.kernel.org
Subject: Re: CVE-2024-35802: x86/sev: Fix position dependent variable
 references in startup code



On 23.05.24 г. 14:21 ч., Greg Kroah-Hartman wrote:
> Isn't crashing SEV guests a problem with "availability"?  That term
> comes from the CVE definition of what we need to mark as a CVE, which is
> why this one was picked.

But availability has never been one of the tenets of CoCo, in fact in 
sev-snp/tdx the VMM is explicitly considered outside of the TCB so 
availability cannot be guaranteed.