From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 7A33140BEE; Tue, 30 Apr 2024 08:11:37 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1714464697; cv=none; b=fom4Qw7CNv0iKZM6dcrR/BbvFTzAO5omMCRWzV8DJCCxn/rQ0h1odBlFGRvTmX/sJS7fY5gCmnoGaFqv+bQjAmRw6VFy26CMw6PG5arX5OZGwUrIzlMC92lWuuaMESK39EH5YZ1q7fBczo3yBu3FLnWtW7UQBugOG+pMwEntCnU= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1714464697; c=relaxed/simple; bh=Okuepw31SRehXeoqshjfC4InPzrJlMsj8crjxsmEs+k=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=aA9tQE8BE/emAYOrNLovFLUJ8HDdEKzMx5V7MtSm+rqqN/KzxftEbbTdGytUpqsWj0orZCLrb1eSL04U9UtOZ88bgKaGJxzJtqyBx4Tk9W4X+XA8FoYhcYjr8wM0HuvQ24XOXkCnk9dWnnH8y4DrSYg6kFuTj/gQOt6UgRy9C14= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=Ny2YddjI; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b="Ny2YddjI" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 86651C2BBFC; Tue, 30 Apr 2024 08:11:36 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1714464697; bh=Okuepw31SRehXeoqshjfC4InPzrJlMsj8crjxsmEs+k=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=Ny2YddjIXd62EgONouXUw4MIpgq1mcR4Ny2Gcwe6ACTc+CdV0UXIy/YQCIIYl47Vc UkQZoe0UGviKS6I/fiNMlR9e+zWbI6Va9a+ig1QuIAQgsZzcpNQGGCsroAtZYZ7Spv zoWTvbkxlPFJxh4l9BIbK80yv3YxIwAHjrS4aFH8= Date: Tue, 30 Apr 2024 10:11:34 +0200 From: Greg KH To: Juergen Gross Cc: cve@kernel.org, linux-cve-announce@vger.kernel.org, linux-kernel@vger.kernel.org, "xen-devel@lists.xenproject.org" , "Xen.org security team" Subject: Re: CVE-2024-26908: x86/xen: Add some null pointer checking to smp.c Message-ID: <2024043015-pauper-aching-a3d4@gregkh> References: <2024041747-CVE-2024-26908-4690@gregkh> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: 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