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 X-Spam-Level: X-Spam-Status: No, score=-3.8 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_HELO_NONE, SPF_PASS autolearn=no autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id C43B9C433E0 for ; Sun, 7 Jun 2020 05:40:31 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 9868020723 for ; Sun, 7 Jun 2020 05:40:31 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=habanalabs.onmicrosoft.com header.i=@habanalabs.onmicrosoft.com header.b="L1q8bK4P" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726329AbgFGFka (ORCPT ); Sun, 7 Jun 2020 01:40:30 -0400 Received: from mail-eopbgr70120.outbound.protection.outlook.com ([40.107.7.120]:28551 "EHLO EUR04-HE1-obe.outbound.protection.outlook.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1726238AbgFGFka (ORCPT ); Sun, 7 Jun 2020 01:40:30 -0400 ARC-Seal: i=1; a=rsa-sha256; s=arcselector9901; d=microsoft.com; cv=none; b=Gs4VU4V4Oge+OQlZD5ucBgIvixvzIm6ykyDfvcvenx7YhRS8kod/qHBjT+NYMmQI0fBxAo8tTCN15IbyaD3L3QhX2yKHx5/jgyLIQckFRRCKD5xmgn/V913pMaW/cov34v7264066yHrvU1s2kw28cerkeIBqcjusDuC5O11tyOBlZBAOxfZi8m1aLt3tBntYbMKZ0G2Ivoo274VH8/UJR+NFqNo5UBC7jbzfpAJf/QQDSNN6N6+R4g0m1DCphTQEMwkUhlIzg0EXWQlCBKVJnsBmKxPeSCWHSXtx0vk4Vx2jRSTnRmtb9GP+HVZMcg6T5lsC4Bb2i/ogp0e5dsopw== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=microsoft.com; s=arcselector9901; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-SenderADCheck; bh=Yhq5e4onxDjmABxJWEP8D8wWXLcHHNK75z3U6q8anWQ=; b=JMZr3mKpBfkJVaCfWx9139JEoMQ4HtKej8aOPDdji5CzP2hS+CLJph8phxt126eI++Fwr11b3qte3HuaAW/6vdg6YqebmNCawy76Ae6I1AFXfVpUrSJfYcIc5OI3Qfx+NywCAylwnJfU5hpp8pCAxTdrAxxXTI89zQCthSD+UGDV877EYAQobJhu+/+wDYHL+Kkzar18nRdH8FXRCFK05KgDsh6oocj3o6AI2ABYGasW/UjNYOYqtaYgz8+nw74isMwAc+o5NWj+6sM84xx9QHBb2SAtUpdP9fDSWpI7dONMHwtrIVjgpUtlXkW9VcGo6MImxYKyAMoUhHLGfcXZZg== ARC-Authentication-Results: i=1; mx.microsoft.com 1; spf=pass smtp.mailfrom=habana.ai; dmarc=pass action=none header.from=habana.ai; dkim=pass header.d=habana.ai; arc=none DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=habanalabs.onmicrosoft.com; s=selector2-habanalabs-onmicrosoft-com; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-SenderADCheck; bh=Yhq5e4onxDjmABxJWEP8D8wWXLcHHNK75z3U6q8anWQ=; b=L1q8bK4PGe/72LUPmS4ccBo6s0K77ShM4Dnw6cKhC2bEDPCJXDv8vswxBJUwRy2ekUpOunQLzXLBVFK0HX0AgvS3AKTPoaBF0gi/Mbk7R+xt5snZx69vK+o1l8uao+Pw+nNs3RIe7CF3hTPoFbSbLdkjVB8sy+/OGwjF5mBGDHc= Received: from DB8PR02MB5468.eurprd02.prod.outlook.com (2603:10a6:10:ef::22) by DB8PR02MB5897.eurprd02.prod.outlook.com (2603:10a6:10:119::8) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.3066.18; Sun, 7 Jun 2020 05:40:25 +0000 Received: from DB8PR02MB5468.eurprd02.prod.outlook.com ([fe80::207a:b49c:79e1:d713]) by DB8PR02MB5468.eurprd02.prod.outlook.com ([fe80::207a:b49c:79e1:d713%6]) with mapi id 15.20.3066.023; Sun, 7 Jun 2020 05:40:24 +0000 From: Tomer Tayar To: Oded Gabbay , "linux-kernel@vger.kernel.org" , SW_Drivers CC: "gregkh@linuxfoundation.org" Subject: RE: [PATCH 1/2] habanalabs: block scalar load_and_exe on external queue Thread-Topic: [PATCH 1/2] habanalabs: block scalar load_and_exe on external queue Thread-Index: AQHWO3cRyT3wksYDhE6zR82ey5VLcqjMpOWw Date: Sun, 7 Jun 2020 05:40:24 +0000 Message-ID: References: <20200605212842.18424-1-oded.gabbay@gmail.com> In-Reply-To: <20200605212842.18424-1-oded.gabbay@gmail.com> Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: authentication-results: gmail.com; dkim=none (message not signed) header.d=none;gmail.com; dmarc=none action=none header.from=habana.ai; x-originating-ip: [217.132.152.78] x-ms-publictraffictype: Email x-ms-office365-filtering-correlation-id: b88c3611-c1b5-429c-3d68-08d80aa546f5 x-ms-traffictypediagnostic: DB8PR02MB5897: x-ms-exchange-transport-forked: True x-microsoft-antispam-prvs: x-ms-oob-tlc-oobclassifiers: OLM:3276; x-forefront-prvs: 04270EF89C x-ms-exchange-senderadcheck: 1 x-microsoft-antispam: BCL:0; x-microsoft-antispam-message-info: bxH6aP8VHpx2dMWTAjb8cOBhhw4hpQqWSa56KT+GCU6FtS18859F0GfCn5V55bAhs5zJmgxlV4vhpTEEYiqk7jKiwZSyDVBei13W8LTpttGbVuq8XJw3CsPUTlus+u4Oy475iUC0DrtOn2BkY8NVeyWvKHrRHeS5l29SMaEWpMhbDl2GMejC7I5LD5NSv1WgKWiolv+q2pzDIRagRk1cQR/uez8uwugPbr+Dl7QPzluCmFcwEgNUYhsMJPb3Rx56G99fUgUWhNk0iKiK78vtrn9ZNgBAPSY4rB9LJQZoAlEs9z22Y8p7KqWaNaYSTKQG6gTU1W1ySK45ZrCLIP6vPg== x-forefront-antispam-report: CIP:255.255.255.255;CTRY:;LANG:en;SCL:1;SRV:;IPV:NLI;SFV:NSPM;H:DB8PR02MB5468.eurprd02.prod.outlook.com;PTR:;CAT:NONE;SFTY:;SFS:(136003)(376002)(346002)(366004)(396003)(39840400004)(478600001)(4326008)(8676002)(8936002)(7696005)(33656002)(86362001)(4744005)(83380400001)(53546011)(66946007)(66556008)(64756008)(6636002)(6506007)(186003)(26005)(5660300002)(2906002)(316002)(71200400001)(110136005)(52536014)(9686003)(55016002)(66476007)(66446008)(76116006);DIR:OUT;SFP:1102; x-ms-exchange-antispam-messagedata: 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 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 X-OriginatorOrg: habana.ai X-MS-Exchange-CrossTenant-Network-Message-Id: b88c3611-c1b5-429c-3d68-08d80aa546f5 X-MS-Exchange-CrossTenant-originalarrivaltime: 07 Jun 2020 05:40:24.8194 (UTC) X-MS-Exchange-CrossTenant-fromentityheader: Hosted X-MS-Exchange-CrossTenant-id: 0d4d4539-213c-4ed8-a251-dc9766ba127a X-MS-Exchange-CrossTenant-mailboxtype: HOSTED X-MS-Exchange-CrossTenant-userprincipalname: PSolZL/ET3yjVTShcDQMx58N4tvA9Jr5MubpOGVdsC0R8a8JBy+InsxtpSaHjskJZmaGd1dxQxqOdrOGOgb0Sg== X-MS-Exchange-Transport-CrossTenantHeadersStamped: DB8PR02MB5897 Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Sat, Jun 6, 2020 at 0:29, Oded Gabbay wrote: > In Gaudi, the user can't execute scalar load_and_exe on external queue > because it can be a security hole. The driver doesn't parse the commands > being loaded and it can be msg_prot, which the user isn't allowed to use. >=20 > Signed-off-by: Oded Gabbay Reviewed-by: Tomer Tayar