Received: by 2002:a05:6a10:9848:0:0:0:0 with SMTP id x8csp792156pxf; Thu, 25 Mar 2021 14:13:55 -0700 (PDT) X-Google-Smtp-Source: ABdhPJxszohi8KbpCdAnOCGyMKWlZ7I91M2tLGNCmL0NI0A67RRAHzjEV7HHDroxQSexbKTlh/mv X-Received: by 2002:a17:906:2c44:: with SMTP id f4mr11218338ejh.508.1616706835629; Thu, 25 Mar 2021 14:13:55 -0700 (PDT) ARC-Seal: i=2; a=rsa-sha256; t=1616706835; cv=pass; d=google.com; s=arc-20160816; b=Dz4orJdPBItYbI7pdND/WDl36LARM3mjGJXAlYyFi1NxYvYE5LjvXB4DFH/1U/bJf8 EcfhT3it7CYykFqkoWub83FDi2KocfPyD9BpL22o45fmb41XxFH1XD8cmE26asUFNFa8 Dlgh30A7yOOlJ20j6wKgIp+skj0FQwbkikPiUDSsWNpBwST+c6/PTXY6xHHjKMn9Xz5q i3PP1c1n9uyWK2dpISgA2V2Xvn95nf7LoMbuRJCEOGnF+C4i5XDQ7El7tuVJW86gmYSV 8FHWRcW5e9HrtWhJl1n8+IhYpACzFUV61gDb9eR8nueS4aZrvlmGGLY9fdlZdvpc2a0b tsZw== ARC-Message-Signature: i=2; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:mime-version:content-transfer-encoding :content-id:content-language:accept-language:in-reply-to:references :message-id:date:thread-index:thread-topic:subject:cc:to:from :dkim-signature:ironport-sdr:ironport-sdr; bh=XiYYYU8g6V+VZI4WdTGYlUyi1v7CBD8SGAANQRE4huM=; b=U0OWJ49yNg9SG+JS39lbbciZVmsepG6eneswuHWLi3whUg2oyynPxTgwGgBXcV9mZ4 x+QZ+bXPK/VcbNdo1wlgcaEIFuXJST5C+mn+oxkDxUppgQD7EIFVadb798iZCZZzPe9M lP5EULAtvTHK3XbZF5zrgB9HKsI6339eY7oqWd8kQxRH3jJjKkNKIu9AWPUzc9niox76 LRXakQa47hABa7axSW5+es9xQTOZ6dw8XoNVchJbaIEqC5AoFKjah+7yW7OEjnW0z/M5 9KO8YHEOHj4WJ0UPxe9V5mUKVzzgL2Gt5BuOo128zLvpNds440ROsL0qo/98sYCvfxwJ pJrA== ARC-Authentication-Results: i=2; mx.google.com; dkim=pass header.i=@intel.onmicrosoft.com header.s=selector2-intel-onmicrosoft-com header.b=qgDe6+zH; arc=pass (i=1 spf=pass spfdomain=intel.com dkim=pass dkdomain=intel.com dmarc=pass fromdomain=intel.com); spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=fail (p=NONE sp=NONE dis=NONE) header.from=intel.com Return-Path: Received: from vger.kernel.org (vger.kernel.org. [23.128.96.18]) by mx.google.com with ESMTP id bq17si5398640ejb.679.2021.03.25.14.13.32; Thu, 25 Mar 2021 14:13:55 -0700 (PDT) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) client-ip=23.128.96.18; Authentication-Results: mx.google.com; dkim=pass header.i=@intel.onmicrosoft.com header.s=selector2-intel-onmicrosoft-com header.b=qgDe6+zH; arc=pass (i=1 spf=pass spfdomain=intel.com dkim=pass dkdomain=intel.com dmarc=pass fromdomain=intel.com); spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=fail (p=NONE sp=NONE dis=NONE) header.from=intel.com Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230419AbhCYVMJ (ORCPT + 99 others); Thu, 25 Mar 2021 17:12:09 -0400 Received: from mga14.intel.com ([192.55.52.115]:30014 "EHLO mga14.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230373AbhCYVMD (ORCPT ); Thu, 25 Mar 2021 17:12:03 -0400 IronPort-SDR: XUBclb3GYoqfr2FKRajjjjx+r8NWaf5PubfQEyBsincICXq0ji4eWRIERu/Eq3WCpaJWojkjqN 1jLVAeEao0tQ== X-IronPort-AV: E=McAfee;i="6000,8403,9934"; a="190447345" X-IronPort-AV: E=Sophos;i="5.81,278,1610438400"; d="scan'208";a="190447345" Received: from orsmga006.jf.intel.com ([10.7.209.51]) by fmsmga103.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 25 Mar 2021 14:12:02 -0700 IronPort-SDR: n2wWp4/O+1jEgH19W3O4YqfNYoelBsA7LMS8rkSgfiS1xDFb6yoyVlLBDEBzPymwSYVxoq5eZF iB6y+wpokAuA== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.81,278,1610438400"; d="scan'208";a="377003370" Received: from fmsmsx602.amr.corp.intel.com ([10.18.126.82]) by orsmga006.jf.intel.com with ESMTP; 25 Mar 2021 14:12:02 -0700 Received: from fmsmsx608.amr.corp.intel.com (10.18.126.88) by fmsmsx602.amr.corp.intel.com (10.18.126.82) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2106.2; Thu, 25 Mar 2021 14:12:02 -0700 Received: from fmsmsx611.amr.corp.intel.com (10.18.126.91) by fmsmsx608.amr.corp.intel.com (10.18.126.88) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2106.2; Thu, 25 Mar 2021 14:12:01 -0700 Received: from fmsedg601.ED.cps.intel.com (10.1.192.135) by fmsmsx611.amr.corp.intel.com (10.18.126.91) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2106.2 via Frontend Transport; Thu, 25 Mar 2021 14:12:01 -0700 Received: from NAM11-DM6-obe.outbound.protection.outlook.com (104.47.57.177) by edgegateway.intel.com (192.55.55.70) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.1.2106.2; Thu, 25 Mar 2021 14:12:01 -0700 ARC-Seal: i=1; a=rsa-sha256; s=arcselector9901; d=microsoft.com; cv=none; b=iaNZlbxUkyirA5q6sY+FDu9wkhIzDzjxWmoBBxJ9J1/AnbrO52f0F2PD3BUJelAGZGvk3jYuonkN3DIa3J13jPT1lZwiEK0A9doNpbzvGfvFjt2qlR6EJsN/owijv9fhBl0pj9GoXjTJ4z2ujcw/CsurzwWPidj642u3Mask7xCRkhy59B4It9w0TYZ1wFDbWaF/mbc895hnn6G92+KLAEqxykDWZAxPPGKuOHFXp382Vi5x3EH7CPHsa3F4OpOFQ3hk3OwoxEwacp7sEaj3KNOc6IC+Wly/JsXN2DPgod4ALLYq0KH0Mw7+UTjBQ3FmqLSab6dWwCiPn9Bu+W7VgQ== 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=XiYYYU8g6V+VZI4WdTGYlUyi1v7CBD8SGAANQRE4huM=; b=S83zyW5DJITrCIzHwDmxde3tdnd+m5wT/+81zpHdavJv0qcybAMLwi0D07wa0o96oZY9Vxj3VAgWpKB7P38ypN3Mfz0abjFr1emlFxiRMqhhVml6d8OGjHPn0TfUmAsT5CTmbWQkP3pzhOhVuD0mHf3tZM6gJCIuUyGNIj4G7+RV5gxYNcr7xo0QxaVHnkpAcdnjQHEFnyvwjAaKIjwHnA0SkFrk/OTdDpIJNsKUnjejMOTHCqNiBcWvMuch61ddZ9I3by0zzlHMvHiQTj3VHRwDkFD/zafbPSguGVBufwX4D5aop4BM76vWDnFN7vJJxoyWxDVYCx957rMm3JhtUQ== ARC-Authentication-Results: i=1; mx.microsoft.com 1; spf=pass smtp.mailfrom=intel.com; dmarc=pass action=none header.from=intel.com; dkim=pass header.d=intel.com; arc=none DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=intel.onmicrosoft.com; s=selector2-intel-onmicrosoft-com; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-SenderADCheck; bh=XiYYYU8g6V+VZI4WdTGYlUyi1v7CBD8SGAANQRE4huM=; b=qgDe6+zHXGqencsSPz1Kj827UURzMjEWe+HNlVWnXy5hLErOXhS4lbgcZ5RGXbyKXOQRQh4CFoFJKh3U1qmNlBJVY5dT/jTQV2mMAI+V81EX2dlxIZwOmxGIDiT2KfvVcQjBQA1IOj/DaPgO4Xh1AfKI0+fJP0hCu/rlHxrbNGY= Received: from PH0PR11MB4855.namprd11.prod.outlook.com (2603:10b6:510:41::12) by PH0PR11MB5128.namprd11.prod.outlook.com (2603:10b6:510:39::17) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.3977.24; Thu, 25 Mar 2021 21:11:56 +0000 Received: from PH0PR11MB4855.namprd11.prod.outlook.com ([fe80::8878:2a72:7987:673]) by PH0PR11MB4855.namprd11.prod.outlook.com ([fe80::8878:2a72:7987:673%5]) with mapi id 15.20.3977.029; Thu, 25 Mar 2021 21:11:56 +0000 From: "Bae, Chang Seok" To: Borislav Petkov CC: Andy Lutomirski , "Cooper, Andrew" , Boris Ostrovsky , "Gross, Jurgen" , Stefano Stabellini , Thomas Gleixner , Ingo Molnar , X86 ML , "Brown, Len" , "Hansen, Dave" , "H. J. Lu" , Dave Martin , Jann Horn , Michael Ellerman , Carlos O'Donell , "Luck, Tony" , "Shankar, Ravi V" , libc-alpha , linux-arch , Linux API , LKML Subject: Re: [PATCH v7 5/6] x86/signal: Detect and prevent an alternate signal stack overflow Thread-Topic: [PATCH v7 5/6] x86/signal: Detect and prevent an alternate signal stack overflow Thread-Index: AQHXGjGh/SWJiX8oekyfIlNJ9KylvKqVEKUAgAALkICAACZgAA== Date: Thu, 25 Mar 2021 21:11:56 +0000 Message-ID: References: <20210316065215.23768-1-chang.seok.bae@intel.com> <20210316065215.23768-6-chang.seok.bae@intel.com> <20210325185435.GB32296@zn.tnic> In-Reply-To: <20210325185435.GB32296@zn.tnic> Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: x-mailer: Apple Mail (2.3608.120.23.2.4) authentication-results: suse.de; dkim=none (message not signed) header.d=none;suse.de; dmarc=none action=none header.from=intel.com; x-originating-ip: [73.189.248.82] x-ms-publictraffictype: Email x-ms-office365-filtering-correlation-id: 25cabbad-d72c-4c17-c492-08d8efd29f59 x-ms-traffictypediagnostic: PH0PR11MB5128: x-ld-processed: 46c98d88-e344-4ed4-8496-4ed7712e255d,ExtAddr x-ms-exchange-transport-forked: True x-microsoft-antispam-prvs: x-ms-oob-tlc-oobclassifiers: OLM:7691; x-ms-exchange-senderadcheck: 1 x-microsoft-antispam: BCL:0; x-microsoft-antispam-message-info: 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 x-forefront-antispam-report: CIP:255.255.255.255;CTRY:;LANG:en;SCL:1;SRV:;IPV:NLI;SFV:NSPM;H:PH0PR11MB4855.namprd11.prod.outlook.com;PTR:;CAT:NONE;SFS:(396003)(376002)(366004)(346002)(136003)(39860400002)(316002)(6916009)(478600001)(186003)(54906003)(4326008)(6512007)(71200400001)(83380400001)(86362001)(26005)(7416002)(2616005)(966005)(66556008)(2906002)(36756003)(53546011)(76116006)(6506007)(8936002)(5660300002)(66946007)(8676002)(64756008)(66446008)(66476007)(33656002)(38100700001)(6486002)(45980500001);DIR:OUT;SFP:1102; x-ms-exchange-antispam-messagedata: =?utf-8?B?ajEvL014NWpaTFhIQ28vSVc0ZkZBUFFDWWFPUS9kaVdra2kyZjFEQ0tpbWRJ?= =?utf-8?B?bFVuOWtPVG5XcU5Pa1pyU0cwcXN4eld4ZWNMNGdPcFd5bE5sNnZDNmxkR2Iy?= =?utf-8?B?djB4cXR4WGJXWk1uR0xmN2JRcW56UjVpa1F2eElpYmdQVGEzdm5IKytCN3VU?= =?utf-8?B?TG9iOHVFWXNSWExtUWlwQncrMCt5N0trNkRHWUU0OGorMkkwNUZDblBySzR0?= =?utf-8?B?V3dFNmdoL1c0T080Vmo5ZXpoalVwZGZ2YXhtSjJWditLaFFCUTZOQ0xqZUEr?= =?utf-8?B?NG9sVFRWc0l5bEs3dDVkbmxjQldsNWhCNWZid3RFUkhuS1c0V1l4N0Z0Q1Jt?= =?utf-8?B?SWQxWHRoUFJFKzRRUWRwajlHa0NxU0VtcDllZkhOMFEycmdGa3kxRGFLM1hZ?= =?utf-8?B?a1FCejlSNmpOUDYxVE1VL28rNTNxdjRxN3VpTE9HL25ZcjZWN1F5dEY3a3d1?= =?utf-8?B?SGwxNy9keVhweXBxUDMzSk10TmJsbi9OUkc1RG0xbTdaZGtiNGVxdnp0b2Rh?= =?utf-8?B?Q2orU1NyVkwybHVOTngrNUhpd1RxWDU2UTYrOGFFbEM4bTd2TndscUZEbW0z?= =?utf-8?B?cTAwVnc3SkJQUmF1MFpLSUtDbnhvMGp5WEVwcUtsT3VoSCtsWlRTc0dMMDFs?= =?utf-8?B?Q0dzZWMvOW52WE5FeVZJaFdERGV5YkpEcThNNUFUUHgrMHp4NmNFQTkyenNR?= =?utf-8?B?aDc1S0svMWViWm1OTWpqUDBEQXc3US8rOW9PVDViZE1hdllVN0tRdDlMRUtW?= =?utf-8?B?aXVqZlBRYXVETVdObnIwTlVSQU83d1Z0MFVhUEJPMXFBNjRmai81Sy9oRmpH?= =?utf-8?B?R1FnMWN4YUc3ZHYySEVhNExhbXhVUHh5bUp2bWJha0xxUTc3T1FvYWQyZERl?= =?utf-8?B?eTN0UFovQ1lTcktOeEpnMTJCald2dkswamNsQVJ0NnUzMHRQYWNobDZvUFo1?= =?utf-8?B?MTE5MTc3VVZ5RzdxRC8xcWlXc0hSb1JxVGhNa1NoWUp4ZzY4elVDc3hJQkQ4?= =?utf-8?B?NXpIMW10QkVFaGR0OTNFNStMeFhBNFEvdGhqNHlCVUhCZzdnOXBXZVhXQjdq?= =?utf-8?B?VzhoQ0ZrUE9pSStVVm9qeGlCMy9HVEhXQy9QQlUvWG5IU1BLOEk0RmxJZHhu?= =?utf-8?B?eTFPQ1ZVT1RBTkVuVkVsUWtaTTQ0c1Vhd0xPQ3NIZFZQelFhMXY1dWJhUjAz?= =?utf-8?B?SURpT08vcEVEM2cwRTlINTFUcEkydzMvbGNIOURUTWVwZ0M2aGJnUElHcHVL?= =?utf-8?B?WFIxSUdYQTBURVpaNFZqT0dTeHBTNFA3b3dNdm5lelNNME1RZ2tZVDhsdHNw?= =?utf-8?B?ZXFuMWVoRWdUVE5kU2cwTThLYU5NcFJFL0I2V3ROazhOVis2UVYwOTRaMU5y?= =?utf-8?B?S3pzOVBid1lXTUt3UERGWkRDZFRRTXlNY2xibndVUEZlKzhJd0V4T0ZndVJa?= =?utf-8?B?TWtMZXVCZEpaUVBRTWFOaTArbDBub2RQdjFyZzd6N2pnRHowNVdVMHVTN0p4?= =?utf-8?B?VkIvQkJ1OWpuc2EybmNSSVBYb3NIK3lDQktFeERMSU1XcDZYdWZ5TWN2WUpC?= =?utf-8?B?Q0V5c28yeVdNTFpkSUhHNmkyQVg4bURUVDhiMEV5eEs2UXpzc0h6MGQ0Nk00?= =?utf-8?B?RW1ZQ2ZocUZZdVdJdFQ4UVNENHVBOXFNS29CRFYyWEFZQldqRXNwakxWTTIw?= =?utf-8?B?dGtSekg3dDU4dlNpbkhNc0JKVExYSStoV2xxb2JVd1Z0RWorVG50MnBGZmx4?= =?utf-8?Q?EYJvdGVQIii9Ved1Ym+sIR0dmLmYFKByhctR1NO?= Content-Type: text/plain; charset="utf-8" Content-ID: <6BB207A767C334488B41E1EE2F5DA75D@namprd11.prod.outlook.com> Content-Transfer-Encoding: base64 MIME-Version: 1.0 X-MS-Exchange-CrossTenant-AuthAs: Internal X-MS-Exchange-CrossTenant-AuthSource: PH0PR11MB4855.namprd11.prod.outlook.com X-MS-Exchange-CrossTenant-Network-Message-Id: 25cabbad-d72c-4c17-c492-08d8efd29f59 X-MS-Exchange-CrossTenant-originalarrivaltime: 25 Mar 2021 21:11:56.7072 (UTC) X-MS-Exchange-CrossTenant-fromentityheader: Hosted X-MS-Exchange-CrossTenant-id: 46c98d88-e344-4ed4-8496-4ed7712e255d X-MS-Exchange-CrossTenant-mailboxtype: HOSTED X-MS-Exchange-CrossTenant-userprincipalname: outVzh+58iBywQKvprT0o1FuwbH0u3QAsiJydwv+trJzLxiFIcxlNMdylvDbekHOxSWY9HcmoB5gvpOioQsW8Ynp994oKYWi4J6G9iI5CZQ= X-MS-Exchange-Transport-CrossTenantHeadersStamped: PH0PR11MB5128 X-OriginatorOrg: intel.com Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org T24gTWFyIDI1LCAyMDIxLCBhdCAxMTo1NCwgQm9yaXNsYXYgUGV0a292IDxicEBzdXNlLmRlPiB3 cm90ZToNCj4gT24gVGh1LCBNYXIgMjUsIDIwMjEgYXQgMTE6MTM6MTJBTSAtMDcwMCwgQW5keSBM dXRvbWlyc2tpIHdyb3RlOg0KPj4gZGlmZiAtLWdpdCBhL2FyY2gveDg2L2tlcm5lbC9zaWduYWwu YyBiL2FyY2gveDg2L2tlcm5lbC9zaWduYWwuYw0KPj4gaW5kZXggZWE3OTRhMDgzYzQ0Li41Mzc4 MTMyNGEyZDMgMTAwNjQ0DQo+PiAtLS0gYS9hcmNoL3g4Ni9rZXJuZWwvc2lnbmFsLmMNCj4+ICsr KyBiL2FyY2gveDg2L2tlcm5lbC9zaWduYWwuYw0KPj4gQEAgLTIzNyw3ICsyMzcsOCBAQCBnZXRf c2lnZnJhbWUoc3RydWN0IGtfc2lnYWN0aW9uICprYSwgc3RydWN0IHB0X3JlZ3MgKnJlZ3MsIHNp emVfdCBmcmFtZV9zaXplLA0KPj4gCXVuc2lnbmVkIGxvbmcgbWF0aF9zaXplID0gMDsNCj4+IAl1 bnNpZ25lZCBsb25nIHNwID0gcmVncy0+c3A7DQo+PiAJdW5zaWduZWQgbG9uZyBidWZfZnggPSAw Ow0KPj4gLQlpbnQgb25zaWdzdGFjayA9IG9uX3NpZ19zdGFjayhzcCk7DQo+PiArCWJvb2wgYWxy ZWFkeV9vbnNpZ3N0YWNrID0gb25fc2lnX3N0YWNrKHNwKTsNCj4+ICsJYm9vbCBlbnRlcmluZ19h bHRzdGFjayA9IGZhbHNlOw0KPj4gCWludCByZXQ7DQo+PiANCj4+IAkvKiByZWR6b25lICovDQo+ PiBAQCAtMjQ2LDE1ICsyNDcsMjUgQEAgZ2V0X3NpZ2ZyYW1lKHN0cnVjdCBrX3NpZ2FjdGlvbiAq a2EsIHN0cnVjdCBwdF9yZWdzICpyZWdzLCBzaXplX3QgZnJhbWVfc2l6ZSwNCj4+IA0KPj4gCS8q IFRoaXMgaXMgdGhlIFgvT3BlbiBzYW5jdGlvbmVkIHNpZ25hbCBzdGFjayBzd2l0Y2hpbmcuICAq Lw0KPj4gCWlmIChrYS0+c2Euc2FfZmxhZ3MgJiBTQV9PTlNUQUNLKSB7DQo+PiAtCQlpZiAoc2Fz X3NzX2ZsYWdzKHNwKSA9PSAwKQ0KPj4gKwkJLyoNCj4+ICsJCSAqIFRoaXMgY2hlY2tzIGFscmVh ZHlfb25zaWdzdGFjayB2aWEgc2FzX3NzX2ZsYWdzKCkuDQo+PiArCQkgKiBTZW5zaWJsZSBwcm9n cmFtcyB1c2UgU1NfQVVUT0RJU0FSTSwgd2hpY2ggZGlzYWJsZXMNCj4+ICsJCSAqIHRoYXQgY2hl Y2ssIGFuZCBwcm9ncmFtcyB0aGF0IGRvbid0IHVzZQ0KPj4gKwkJICogU1NfQVVUT0RJU0FSTSBn ZXQgY29tcGF0aWJsZSBidXQgcG90ZW50aWFsbHkNCj4+ICsJCSAqIGJpemFycmUgYmVoYXZpb3Iu DQo+PiArCQkgKi8NCj4+ICsJCWlmIChzYXNfc3NfZmxhZ3Moc3ApID09IDApIHsNCj4+IAkJCXNw ID0gY3VycmVudC0+c2FzX3NzX3NwICsgY3VycmVudC0+c2FzX3NzX3NpemU7DQo+PiArCQkJZW50 ZXJpbmdfYWx0c3RhY2sgPSB0cnVlOw0KPj4gKwkJfQ0KPj4gCX0gZWxzZSBpZiAoSVNfRU5BQkxF RChDT05GSUdfWDg2XzMyKSAmJg0KPj4gLQkJICAgIW9uc2lnc3RhY2sgJiYNCj4+ICsJCSAgICFh bHJlYWR5X29uc2lnc3RhY2sgJiYNCj4+IAkJICAgcmVncy0+c3MgIT0gX19VU0VSX0RTICYmDQo+ PiAJCSAgICEoa2EtPnNhLnNhX2ZsYWdzICYgU0FfUkVTVE9SRVIpICYmDQo+PiAJCSAgIGthLT5z YS5zYV9yZXN0b3Jlcikgew0KPj4gCQkvKiBUaGlzIGlzIHRoZSBsZWdhY3kgc2lnbmFsIHN0YWNr IHN3aXRjaGluZy4gKi8NCj4+IAkJc3AgPSAodW5zaWduZWQgbG9uZykga2EtPnNhLnNhX3Jlc3Rv cmVyOw0KPj4gKwkJZW50ZXJpbmdfYWx0c3RhY2sgPSB0cnVlOw0KPj4gCX0NCj4gDQo+IFdoYXQg YSBtZXNzIHRoaXMgd2hvbGUgc2lnbmFsIGhhbmRsaW5nIGlzLiBJIG5lZWQgYSBjb3Vyc2UgaW4g c2lnbmFsDQo+IGhhbmRsaW5nIHRvIHVuZGVyc3RhbmQgd2hhdCdzIGdvaW5nIG9uIGhlcmUuLi4N Cj4gDQo+PiANCj4+IAlzcCA9IGZwdV9fYWxsb2NfbWF0aGZyYW1lKHNwLCBJU19FTkFCTEVEKENP TkZJR19YODZfMzIpLA0KPj4gQEAgLTI2Nyw4ICsyNzgsMTYgQEAgZ2V0X3NpZ2ZyYW1lKHN0cnVj dCBrX3NpZ2FjdGlvbiAqa2EsIHN0cnVjdCBwdF9yZWdzICpyZWdzLCBzaXplX3QgZnJhbWVfc2l6 ZSwNCj4+IAkgKiBJZiB3ZSBhcmUgb24gdGhlIGFsdGVybmF0ZSBzaWduYWwgc3RhY2sgYW5kIHdv dWxkIG92ZXJmbG93IGl0LCBkb24ndC4NCj4+IAkgKiBSZXR1cm4gYW4gYWx3YXlzLWJvZ3VzIGFk ZHJlc3MgaW5zdGVhZCBzbyB3ZSB3aWxsIGRpZSB3aXRoIFNJR1NFR1YuDQo+PiAJICovDQo+PiAt CWlmIChvbnNpZ3N0YWNrICYmICFsaWtlbHkob25fc2lnX3N0YWNrKHNwKSkpDQo+PiArCWlmICh1 bmxpa2VseShlbnRlcmluZ19hbHRzdGFjayAmJg0KPj4gKwkJICAgICAoc3AgPD0gY3VycmVudC0+ c2FzX3NzX3NwIHx8DQo+PiArCQkgICAgICBzcCAtIGN1cnJlbnQtPnNhc19zc19zcCA+IGN1cnJl bnQtPnNhc19zc19zaXplKSkpIHsNCj4gDQo+IFlvdSBjb3VsZCd2ZSBzaW1wbHkgZG9uZQ0KPiAN Cj4gCWlmICh1bmxpa2VseShlbnRlcmluZ19hbHRzdGFjayAmJiAhb25fc2lnX3N0YWNrKHNwKSkp DQo+IA0KPiBoZXJlLg0KDQpCdXQgaWYgc2lnYWx0c3RhY2soKeKAmWVkIHdpdGggdGhlIFNTX0FV VE9ESVNBUk0gZmxhZywgYm90aCBvbl9zaWdfc3RhY2soKSBhbmQNCnNhc19zc19mbGFncygpIHJl dHVybiAwIFsxXS4gVGhlbiwgc2VnZmF1bHQgYWx3YXlzIGhlcmUuIHY1IGhhZCB0aGUgZXhhY3QN Cmlzc3VlIGJlZm9yZSBbMl0uDQoNClsxXSBodHRwczovL2dpdC5rZXJuZWwub3JnL3B1Yi9zY20v bGludXgva2VybmVsL2dpdC90b3J2YWxkcy9saW51eC5naXQvdHJlZS9pbmNsdWRlL2xpbnV4L3Nj aGVkL3NpZ25hbC5oI241NzYNClsyXSBodHRwczovL2xvcmUua2VybmVsLm9yZy9sa21sL0NBTENF VHJYdUZySFVVLUw9SE1vZlRnRURaazltdVBuVnRLPUVqc1RIcVEwMVhoYlJZZ0BtYWlsLmdtYWls LmNvbS8NCg0KVGhhbmtzLA0KQ2hhbmcNCg0K