From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 4CDDEC77B7C for ; Wed, 31 May 2023 07:47:45 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S234743AbjEaHrn (ORCPT ); Wed, 31 May 2023 03:47:43 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:52050 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S234676AbjEaHri (ORCPT ); Wed, 31 May 2023 03:47:38 -0400 Received: from eu-smtp-delivery-151.mimecast.com (eu-smtp-delivery-151.mimecast.com [185.58.86.151]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 9096FC5 for ; Wed, 31 May 2023 00:47:36 -0700 (PDT) Received: from AcuMS.aculab.com (156.67.243.121 [156.67.243.121]) by relay.mimecast.com with ESMTP with both STARTTLS and AUTH (version=TLSv1.2, cipher=TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384) id uk-mta-237-yPrT6zgJNVmBX2UU9Li6GA-1; Wed, 31 May 2023 08:47:33 +0100 X-MC-Unique: yPrT6zgJNVmBX2UU9Li6GA-1 Received: from AcuMS.Aculab.com (10.202.163.6) by AcuMS.aculab.com (10.202.163.6) with Microsoft SMTP Server (TLS) id 15.0.1497.48; Wed, 31 May 2023 08:47:30 +0100 Received: from AcuMS.Aculab.com ([::1]) by AcuMS.aculab.com ([::1]) with mapi id 15.00.1497.048; Wed, 31 May 2023 08:47:30 +0100 From: David Laight To: 'Stefan Berger' , Jarkko Sakkinen , "linux-integrity@vger.kernel.org" CC: Jason Gunthorpe , Alejandro Cabrera , Jarkko Sakkinen , "stable@vger.kernel.org" , Stefan Berger , "linux-kernel@vger.kernel.org" Subject: RE: [PATCH RFC v2] tpm: tpm_vtpm_proxy: do not reference kernel memory as user memory Thread-Topic: [PATCH RFC v2] tpm: tpm_vtpm_proxy: do not reference kernel memory as user memory Thread-Index: AQHZkx6c4+KBdklbTEOBEhyozKww7690AQlg Date: Wed, 31 May 2023 07:47:30 +0000 Message-ID: <26ee6ae4411645b99c351917b38d9b83@AcuMS.aculab.com> References: <20230530020133.235765-1-jarkko@kernel.org> In-Reply-To: Accept-Language: en-GB, en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: x-ms-exchange-transport-fromentityheader: Hosted x-originating-ip: [10.202.205.107] MIME-Version: 1.0 X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: aculab.com Content-Language: en-US Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: base64 Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org RnJvbTogU3RlZmFuIEJlcmdlcg0KPiBTZW50OiAzMCBNYXkgMjAyMyAxODo0Ng0KPiANCj4gT24g NS8yOS8yMyAyMjowMSwgSmFya2tvIFNha2tpbmVuIHdyb3RlOg0KPiA+IEZyb206IEphcmtrbyBT YWtraW5lbiA8amFya2tvLnNha2tpbmVuQHR1bmkuZmk+DQo+ID4NCj4gDQo+ID4gLQlyYyA9IGNv cHlfdG9fdXNlcihidWYsIHByb3h5X2Rldi0+YnVmZmVyLCBsZW4pOw0KPiA+ICsJaWYgKGJ1ZikN Cj4gPiArCQlyYyA9IGNvcHlfdG9fdXNlcihidWYsIHByb3h5X2Rldi0+YnVmZmVyLCBsZW4pOw0K PiA+ICsNCj4gDQo+IExvb2tpbmcgdGhyb3VnaCBvdGhlciBkcml2ZXJzIGl0IHNlZW1zIGJ1ZiBp cyBhbHdheXMgZXhwZWN0ZWQgdG8gYmUgYSB2YWxpZCBub24tTlVMTCBwb2ludGVyIG9uDQo+IGZp bGVfb3BlcmF0aW9ucy5yZWFkKCkuDQoNCklmIHRoZSB1c2VyIHBhc3NlcyBOVUxMIHRoZSBjb3B5 X3RvL2Zyb21fdXNlcigpIGZhaWxzIGFuZA0KLUVGQVVMVCBpcyByZXR1cm5lZC4NCg0KQWRkaW5n IHRoZSBOVUxMIGNoZWNrIG1ha2VzIHRoZSByZXF1ZXN0IHNpbGVudGx5IHN1Y2NlZWQuDQpJIGRv dWJ0IHRoYXQgaXMgYW55d2hlcmUgbmVhciByaWdodCB3aGVuIHlvdSBpZ25vcmUgY29weV9mcm9t X3VzZXIoKS4NCg0KSSdtIG5vdCBzdXJlIHdoYXQgdGhlIHJhdGlvbmFsL3N1YmplY3QgaXMgYWJv dXQgZWl0aGVyLg0KY29weV90by9mcm9tX3VzZXIoKSBjYWxscyBhY2Nlc3Nfb2soKSBhbmQgd2ls bCBmYWlsIG9uDQphIGtlcm5lbCBhZGRyZXNzLg0KDQoJRGF2aWQNCg0KLQ0KUmVnaXN0ZXJlZCBB ZGRyZXNzIExha2VzaWRlLCBCcmFtbGV5IFJvYWQsIE1vdW50IEZhcm0sIE1pbHRvbiBLZXluZXMs IE1LMSAxUFQsIFVLDQpSZWdpc3RyYXRpb24gTm86IDEzOTczODYgKFdhbGVzKQ0K