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Message-ID: <2024043015-pauper-aching-a3d4@gregkh>
Date: Tue, 30 Apr 2024 10:11:34 +0200
From: Greg KH <gregkh@...uxfoundation.org>
To: Juergen Gross <jgross@...e.com>
Cc: cve@...nel.org, linux-cve-announce@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	"xen-devel@...ts.xenproject.org" <xen-devel@...ts.xenproject.org>,
	"Xen.org security team" <security@....org>
Subject: Re: CVE-2024-26908: x86/xen: Add some null pointer checking to smp.c

On Mon, Apr 29, 2024 at 01:53:44PM +0200, Juergen Gross wrote:
> Hi,
> 
> I'd like to dispute CVE-2024-26908: the issue fixed by upstream commit
> 3693bb4465e6e32a204a5b86d3ec7e6b9f7e67c2 can in no way be triggered by
> an unprivileged user or by a remote attack of the system, as it requires
> hotplug of (virtual) cpus to the running system. This can be done only by
> either a host admin or by an admin of the guest which might suffer the
> out-of-memory situation.
> 
> Please revoke this CVE.

Sorry for the delay, thanks for looking into this and letting us know.
It's now rejected.

greg k-h

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