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 4BF35C6FD1D for ; Tue, 21 Mar 2023 11:24:10 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230417AbjCULYI (ORCPT ); Tue, 21 Mar 2023 07:24:08 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:46390 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230377AbjCULYB (ORCPT ); Tue, 21 Mar 2023 07:24:01 -0400 Received: from mailgw01.mediatek.com (unknown [60.244.123.138]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 2E474CDE2; Tue, 21 Mar 2023 04:23:43 -0700 (PDT) X-UUID: d21d162cc7da11eda9a90f0bb45854f4-20230321 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=mediatek.com; s=dk; h=MIME-Version:Content-Transfer-Encoding:Content-ID:Content-Type:In-Reply-To:References:Message-ID:Date:Subject:CC:To:From; bh=Fww/5nJ3s/Mn6LOrzLIo1wn+JCkU+Ud2l29Sidq+as0=; b=VRRIX2tmRRdZPYrN2YUpo1awG7wgaNCFSwSiNdQLR4VZKl9rF/Cvk829Ux+IoF7HNRGoPfbyd0/vVkoh+KugaqHfh10NgZVRL+i2JJ1INbWGjULsiVxzvCgqGLlmoRgb+ZM1bP4IJMUFMz9/6hAW0fGfX91k4fqbHSoOh28Tj/Y=; X-CID-P-RULE: Release_Ham X-CID-O-INFO: VERSION:1.1.22,REQID:3ba3199f-67e5-4f99-913d-53ab03964893,IP:0,U RL:0,TC:0,Content:0,EDM:0,RT:0,SF:0,FILE:0,BULK:0,RULE:Release_Ham,ACTION: release,TS:0 X-CID-META: VersionHash:120426c,CLOUDID:0dc6e8b3-beed-4dfc-bd9c-e1b22fa6ccc4,B ulkID:nil,BulkQuantity:0,Recheck:0,SF:102,TC:nil,Content:0,EDM:-3,IP:nil,U RL:11|1,File:nil,Bulk:nil,QS:nil,BEC:nil,COL:0,OSI:0,OSA:0,AV:0 X-CID-BVR: 0,NGT X-CID-BAS: 0,NGT,0,_ X-UUID: d21d162cc7da11eda9a90f0bb45854f4-20230321 Received: from mtkmbs13n2.mediatek.inc [(172.21.101.108)] by mailgw01.mediatek.com (envelope-from ) (Generic MTA with TLSv1.2 ECDHE-RSA-AES256-GCM-SHA384 256/256) with ESMTP id 1010644218; Tue, 21 Mar 2023 19:23:36 +0800 Received: from mtkmbs10n2.mediatek.inc (172.21.101.183) by mtkmbs13n2.mediatek.inc (172.21.101.108) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.1118.25; Tue, 21 Mar 2023 19:23:34 +0800 Received: from APC01-TYZ-obe.outbound.protection.outlook.com (172.21.101.239) by mtkmbs10n2.mediatek.inc (172.21.101.183) with Microsoft SMTP Server id 15.2.1118.25 via Frontend Transport; Tue, 21 Mar 2023 19:23:34 +0800 ARC-Seal: i=1; a=rsa-sha256; s=arcselector9901; d=microsoft.com; cv=none; b=oWCeCPHKqf73hS1/i+UmwIKyuQ4Pcfnoc9VOUcKdtFX8LmrdUOBgxX14+GerAmc9h9NnQ41pcRZYjUXjiSaKHonE/FrRc+y2UF5SZhienlqi/NhZOhkjKoPn6ixUS4xLvRDAZZWb5COzwzbZ5dgAFZW40bt4+kJM/oa/ooGQ0VrwuwkTV1bvcFgGPjVpxMGc8/zcoTfUc9psK/w8iUmFq8ZEePfJqVYrkwajjPvGQ05fpyvhp8r5HkvxKQ57/tfPq89tuvWFad7r7kdvY7xgBoVS3m5Cu/NNmJBnUM1sJyiupBIyZ+c//CjXToGvWDRMA30FM9AN6f2MUbw7qdOvmg== 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-AntiSpam-MessageData-ChunkCount:X-MS-Exchange-AntiSpam-MessageData-0:X-MS-Exchange-AntiSpam-MessageData-1; bh=Fww/5nJ3s/Mn6LOrzLIo1wn+JCkU+Ud2l29Sidq+as0=; b=UjPNAtOTMfvxfnDPSuI3oITqMkERdk34fHfYDNeOoYhCOKHnJF/pCSDTF27ZJ9eJnokSl5KNCGOlu7x7It+Am1w6zd5/dd978MsMj2K9s08p98byzOzNZ3IzkHky7qSoGIMqEtwCf95phK8bm5BdzTFXuJ7TcMiHRfejdQ0OHo+6+K/S3AtcR+bvPOL2j7J6vLfeOAuMBPlX1ZIIQMYw6ZPk732whCQYw96Xwi9hPj9n86bAPW80eIw4EWZTIbi8jzzGDz4ZhCs7grr8mqCnna3uG9ihhUXHVHyTmJMigSB9r0E1xlMPltNLWdC58FU8yJIiNBJ0orB+ypA1kQ5ITA== ARC-Authentication-Results: i=1; mx.microsoft.com 1; spf=pass smtp.mailfrom=mediatek.com; dmarc=pass action=none header.from=mediatek.com; dkim=pass header.d=mediatek.com; arc=none DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=mediateko365.onmicrosoft.com; s=selector2-mediateko365-onmicrosoft-com; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-SenderADCheck; bh=Fww/5nJ3s/Mn6LOrzLIo1wn+JCkU+Ud2l29Sidq+as0=; b=h54eH2CEdCQmUXHTp/mVb9zWxnrbmLBrp7UrBgCLJFwBaVUGYJwHQy/mHLCOd9NdsQRWXUG/Yplh88bJCQ8a0W7LVGYLK7UOLH3xrCfeS29K9y2Yx/3NvPLj0lnLtCqkplxO2T+YTMmv3A7EdV9hHEPG63wfjqx/qm3BpUp3gVI= Received: from TYZPR03MB7183.apcprd03.prod.outlook.com (2603:1096:400:33a::11) by TYUPR03MB7088.apcprd03.prod.outlook.com (2603:1096:400:355::7) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.6178.37; Tue, 21 Mar 2023 11:23:32 +0000 Received: from TYZPR03MB7183.apcprd03.prod.outlook.com ([fe80::a334:8b07:f1a9:99d3]) by TYZPR03MB7183.apcprd03.prod.outlook.com ([fe80::a334:8b07:f1a9:99d3%5]) with mapi id 15.20.6178.037; Tue, 21 Mar 2023 11:23:32 +0000 From: =?utf-8?B?VHplLW5hbiBXdSAo5ZCz5r6k5Y2XKQ==?= To: =?utf-8?B?Q2hlbmctSnVpIFdhbmcgKOeOi+ato+edvyk=?= , "rostedt@goodmis.org" CC: "zanussi@kernel.org" , "linux-kernel@vger.kernel.org" , "linux-trace-kernel@vger.kernel.org" , "linux-mediatek@lists.infradead.org" , wsd_upstream , =?utf-8?B?Qm9idWxlIENoYW5nICjlvLXlvJjnvqkp?= , "stable@vger.kernel.org" , "linux-arm-kernel@lists.infradead.org" , "mhiramat@kernel.org" , "matthias.bgg@gmail.com" , "angelogioacchino.delregno@collabora.com" Subject: Re: [PATCH] tracing: Fix use-after-free and double-free on last_cmd Thread-Topic: [PATCH] tracing: Fix use-after-free and double-free on last_cmd Thread-Index: AQHZWJGzSG3WGoP58UCw7mn23f1plK8A37WAgAQ+SAA= Date: Tue, 21 Mar 2023 11:23:32 +0000 Message-ID: References: <20230317053044.13828-1-cheng-jui.wang@mediatek.com> <20230318143533.1890d9bc@rorschach.local.home> In-Reply-To: <20230318143533.1890d9bc@rorschach.local.home> Accept-Language: zh-TW, en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: authentication-results: dkim=none (message not signed) header.d=none;dmarc=none action=none header.from=mediatek.com; x-ms-publictraffictype: Email x-ms-traffictypediagnostic: TYZPR03MB7183:EE_|TYUPR03MB7088:EE_ x-ms-office365-filtering-correlation-id: 7b41798f-10b7-4ce3-0e76-08db29feb3fb x-ld-processed: a7687ede-7a6b-4ef6-bace-642f677fbe31,ExtAddr x-ms-exchange-senderadcheck: 1 x-ms-exchange-antispam-relay: 0 x-microsoft-antispam: BCL:0; x-microsoft-antispam-message-info: An/X4m5MF6AGzbiItbUsHkvBA3yUaYKLVGH+qhOdpDsGwC0WeGgGPPVgML7PW8JS3zsgPlZttD011Uk7B6BbLmCY2c/mErhIYzf9ErptGkh9vw1axaAzYEkw8D3dfOwrOuD3w2PccWP9AfxBubnslxJbIhtnVS0MUGM3xNDdg1LeKnX97KPFjCl/yEBYo4L+aGuWSX4/Oh8E+zs7dzlM7bg8LMCoW0Qajs2rY8KLY36FHWrMaRzzRrjs/JUtGM06bahuW5+QYsvdrLFJrgawb2vNgUy7mVpJowWAhSQf4UkfwUP/DxEIAHDqL6JVu1ljedi6NqZCtEDb/jA9hzOcar/6CPbzWD/Nv/aThDyMq8s2DSbljS7nJRt3nk6o4trf/wZRnpJoVKRKQBkxeRueJlCU+jS68NbyvQQ3SNaocWC58JWOOn7mbF6IDuMNH31fXFNNt/R2vyl6yRdZiakcCFF4u9ErgmsaWM2Df7JQxOeUUBAcpd/Ks0yDTkz+xSvVZOJoQr0uFUQkEJet5yu+/wwO1uqE63igkbjaN8G2A3Qscb02FjY4d1gwm9+v+DbHa6MzxBP5fznsh4YkNBMnvPOrzb4xEIq5ESirc06bV+snTa5YWbUcd330NlFnPTyZ82gBNa+7BOgL29JI3jK5rpF7H00HV8QzwKjMndWm2bhghbDEr5RPURiypVfFOIn0 x-forefront-antispam-report: CIP:255.255.255.255;CTRY:;LANG:en;SCL:1;SRV:;IPV:NLI;SFV:NSPM;H:TYZPR03MB7183.apcprd03.prod.outlook.com;PTR:;CAT:NONE;SFS:(13230025)(4636009)(396003)(376002)(136003)(366004)(346002)(39860400002)(451199018)(54906003)(110136005)(5660300002)(316002)(86362001)(6486002)(2616005)(83380400001)(38100700002)(38070700005)(122000001)(71200400001)(85182001)(966005)(478600001)(6506007)(6512007)(36756003)(186003)(26005)(2906002)(4326008)(8936002)(7416002)(41300700001)(8676002)(91956017)(66556008)(66476007)(66446008)(66946007)(76116006)(64756008);DIR:OUT;SFP:1102; x-ms-exchange-antispam-messagedata-chunkcount: 1 x-ms-exchange-antispam-messagedata-0: =?utf-8?B?WWJzWU43d2pUcGhGQVJSMTFkaDZnUlJObUJoc2VuTnA4ZU4vTmdacTJ4NWhQ?= =?utf-8?B?WkpuTzNYRFJpTTZhRldTOUFuZUZpMjhob1VrZnBlVkZSN2QxQkdIOC9ieTRT?= =?utf-8?B?SGxTQ1grYmRwcWJ6RFJkODNsWmpWL0JKMTM2YkxyWUY5SStJa2MzcGFaZ21k?= =?utf-8?B?bUMvUXlld2lmaHVGaU5kSnhMb3BoSnBsNEh4OTVkLzFQdFRPNGh6QkJjSXBr?= =?utf-8?B?b205MHBqc0RwSUxaSW8yTGhzMWdLUWNmNG1YYi92MmRsN29CcmJ1bXRhcmM1?= =?utf-8?B?UHJHZzVqSGdta1pyaW1HNkdTektoS0hQV055NXhsKzU5SGRudzFrQlpZbXV3?= =?utf-8?B?VDQxcGw3a2NzdFRNZEdTNUJ4cjgxa2x1Q0pXYUVEOFhQZVR5SWVBU25rT3hV?= =?utf-8?B?dGxEUHg5eWpqOVlpaU1mbXgvV2srL1FjRHNZL3NrazRJelJiQS9kZ3dyODJR?= =?utf-8?B?R2Z0T2tiLzlWZTVPdzIvVVRMR28xVFRtbnRqSjNvcU9SN1hIMWEvd0tKaE90?= =?utf-8?B?R2dkZURqUjdDOWdIOTVvMEl1eHQvOW43cG4xdkVIbFZOdE5US3NYTEltL2th?= =?utf-8?B?eVpNSHc2NlR2YzRLeXNiQkw1cm55QnBQN3JGcFdnUStiMi9NRm5Ic3FMZkxK?= =?utf-8?B?OUMwK0VWUytUTEovOFhDK2ljUUQySTNYR3ZqbVhnQzV6Q0pVcmRTQTN6ZWxP?= =?utf-8?B?RUkxU3Mvd0JjVm9BSDVzQTc1WS96ZWRqNWFvMWZBTkJpNkhpWDU3SHI5N0FK?= =?utf-8?B?V05ENzhRTElBTUhSZGNVR2w5SXhOOTFyTmR1KzJsYUdvWUw1UGVPYkU4ZlRE?= =?utf-8?B?OWhGWHM2NENmUWVabHJmN1JkdlluSW5kM1ZZbmpvY3dOZ3hSalM1cTNJc1lw?= =?utf-8?B?blViNXlVR25GTkRBdnJjZGw5T2dhajZyNXhBdGVkV29HWEltVDNMT21icG55?= =?utf-8?B?dzRMSjBqZ2tFSjMrN0ZDc3NlQXYxY29WdkNoc3h2Mjg2K043YkRUVDY5MHZC?= =?utf-8?B?N1FLZVY5Tk9FcW12RkxmbGNPaEJ2NzFPWE5ISmdtV2JYeG4yNGFJUDJQNXNv?= =?utf-8?B?NndFSlBrbFA3SGJJZFEyMEVXVm9XaVAxTXlDTmJ5YlA1K1dLODNpNFd6NW9F?= =?utf-8?B?K0VvSFhsY1Fpc1d4eGJvOG1UREFEdlUwZGhzUFBMWTRtWXkrRDQ2Rjd3QXpr?= =?utf-8?B?MG80WkRZQzJ3YTNoYUk5UFU1TVg3bFBYYVNhVnNBTzVTZGlxK29YdlBuR0J3?= =?utf-8?B?SndLaWhjZFlPQ0VZUXh5YnlOZUMyeFlEeno1bmxuOTFZNloxUk9zWXkxdENY?= =?utf-8?B?Y3FwTnJRR3dvNHBGS292bUVMWHYySFRtQW1EYms2RVRTaXZVOFZKWnh2T2sr?= =?utf-8?B?RWxUbFZyc3BFNGhoSTFYaVdzeTlBeDFpUzJoQkR6T0tLWTg1TWJOUXd4UlpV?= =?utf-8?B?UUI3YndGbktmNFg1RHk5dG1HcmlkN3ZSQzJKZlBWV1RlWTFqTVNYOUhCbkxu?= =?utf-8?B?T1d1ekRsY0lwS2pPY2FtZ0NtNzlubXBMK3h2OHM1aEo1ejArd0srRW8vbnh5?= =?utf-8?B?TTdNWDNxQ1dobTRVdXI2dkZDd2JRNlRBaWNqdHZlZy9TbnJuTS8vOVdYT0tI?= =?utf-8?B?M0lTTTlHUllGMzI3cWdQSkdXMmc2UG0xaCszYVhMV2NSZGQzUGdtdWhPeDY0?= =?utf-8?B?N2sxT3lwRURoWlpRYjhNcHByNDZUc3JDamYvdFI0aG9laUhLOUQwKzdzRWFs?= =?utf-8?B?R1pMUGxlWjUycmZWeC9qMlhrblVDSEtCc3NWclBSMWg4ZEE3MmFWZksxM2Zt?= =?utf-8?B?OWprOXFJK3JlbnFMOTkxNS8zdWxxMzF1dERmbThIbzFuNkN3YnRIM1EvU011?= =?utf-8?B?Z0FjSlNjTDA4dzBXSWhXV1pmR2NPUklRcC9mMGEzaUdwNXl6QmdkRUNwM2VH?= =?utf-8?B?NHB5QUs1SGkyQWZLdm9kSC9CeDlhT21sM1RndGZxL1FsbVEwdFh1MHNHL1k1?= =?utf-8?B?RzhGczFydDBQTzVkdWcwWEI1Q3FrallOZ0E1MzhXZVpvUnpQTjQ5Nm9CYmFX?= =?utf-8?B?czVmVnEvK3hkMVErMk5lc0E1ZlMvSE51VjJzYmgwcDFYTTN0MlNYcGZjOGZT?= =?utf-8?B?UUp5SjNFbzVnSWUweHZaczFBMmlka2Zab3d5ak0xY0VScXNoYUhodEpZTjFF?= =?utf-8?B?SFE9PQ==?= Content-Type: text/plain; charset="utf-8" Content-ID: Content-Transfer-Encoding: base64 MIME-Version: 1.0 X-MS-Exchange-CrossTenant-AuthAs: Internal X-MS-Exchange-CrossTenant-AuthSource: TYZPR03MB7183.apcprd03.prod.outlook.com X-MS-Exchange-CrossTenant-Network-Message-Id: 7b41798f-10b7-4ce3-0e76-08db29feb3fb X-MS-Exchange-CrossTenant-originalarrivaltime: 21 Mar 2023 11:23:32.0902 (UTC) X-MS-Exchange-CrossTenant-fromentityheader: Hosted X-MS-Exchange-CrossTenant-id: a7687ede-7a6b-4ef6-bace-642f677fbe31 X-MS-Exchange-CrossTenant-mailboxtype: HOSTED X-MS-Exchange-CrossTenant-userprincipalname: oeXbrZQfUxY5dMY2AuZz9332UJRRfFwGmrRdLdJCPN8x1VAwSAm6CfdDOoqvc0vIhFqQidKMQ0TqzTaNClDdNg== X-MS-Exchange-Transport-CrossTenantHeadersStamped: TYUPR03MB7088 Precedence: bulk List-ID: X-Mailing-List: stable@vger.kernel.org T24gU2F0LCAyMDIzLTAzLTE4IGF0IDE0OjM1IC0wNDAwLCBTdGV2ZW4gUm9zdGVkdCB3cm90ZToN Cj4gT24gRnJpLCAxNyBNYXIgMjAyMyAxMzozMDo0NCArMDgwMA0KPiBDaGVuZy1KdWkgV2FuZyA8 Y2hlbmctanVpLndhbmdAbWVkaWF0ZWsuY29tPiB3cm90ZToNCj4gDQo+ID4gRnJvbTogIlR6ZS1u YW4gV3UiIDxUemUtbmFuLld1QG1lZGlhdGVrLmNvbT4NCj4gDQo+IEhpIQ0KPiANCj4gVGhhbmtz IGZvciB0aGUgcmVwb3J0IGFuZCB0aGUgcGF0Y2guIFNvbWUgbml0cyBiZWxvdy4NCj4gDQo+IEFs c28gY2hhbmdlIHRoZSBzdWJqZWN0IHRvOg0KPiANCj4gCXRyYWNpbmcvc3ludGhldGljOiBGaXgg cmFjZXMgb24gZnJlZWluZyBsYXN0X2NtZA0KPiANCj4gPiAtLS0NCj4gPiAga2VybmVsL3RyYWNl L3RyYWNlX2V2ZW50c19zeW50aC5jIHwgMjMgKysrKysrKysrKysrKysrKysrKy0tLS0NCj4gPiAg MSBmaWxlIGNoYW5nZWQsIDE5IGluc2VydGlvbnMoKyksIDQgZGVsZXRpb25zKC0pDQo+ID4gDQo+ ID4gZGlmZiAtLWdpdCBhL2tlcm5lbC90cmFjZS90cmFjZV9ldmVudHNfc3ludGguYw0KPiA+IGIv a2VybmVsL3RyYWNlL3RyYWNlX2V2ZW50c19zeW50aC5jDQo+ID4gaW5kZXggNDZkMGFiYjMyZDBm Li5jZTQzOGVjY2FiMmUgMTAwNjQ0DQo+ID4gLS0tIGEva2VybmVsL3RyYWNlL3RyYWNlX2V2ZW50 c19zeW50aC5jDQo+ID4gKysrIGIva2VybmVsL3RyYWNlL3RyYWNlX2V2ZW50c19zeW50aC5jDQo+ ID4gQEAgLTQyLDE2ICs0MiwyNSBAQCBlbnVtIHsgRVJST1JTIH07DQo+ID4gICN1bmRlZiBDDQo+ ID4gICNkZWZpbmUgQyhhLCBiKQkJYg0KPiA+ICANCj4gPiArc3RhdGljIERFRklORV9NVVRFWChs YXN0Y21kX211dGV4KTsNCj4gPiArDQo+ID4gIHN0YXRpYyBjb25zdCBjaGFyICplcnJfdGV4dFtd ID0geyBFUlJPUlMgfTsNCj4gPiAgDQo+ID4gIHN0YXRpYyBjaGFyICpsYXN0X2NtZDsNCj4gDQo+ IFBsZWFzZSBrZWVwIHRoZSBtdXRleCBhbmQgdGhlIHZhcmlhYmxlIGl0IHByb3RlY3RzIG5leHQg dG8gZWFjaA0KPiBvdGhlcjoNCj4gDQo+IHN0YXRpYyBERUZJTkVfTVVURVgobGFzdGNtZF9tdXRl eCk7DQo+IHN0YXRpYyBjaGFyICpsYXN0X2NtZDsNCj4gDQo+ID4gIA0KPiA+ICBzdGF0aWMgaW50 IGVycnBvcyhjb25zdCBjaGFyICpzdHIpDQo+ID4gIHsNCj4gPiAtCWlmICghc3RyIHx8ICFsYXN0 X2NtZCkNCj4gPiAtCQlyZXR1cm4gMDsNCj4gPiArCWludCByZXQgPSAwOw0KPiA+ICsNCj4gPiAr CW11dGV4X2xvY2soJmxhc3RjbWRfbXV0ZXgpOw0KPiA+ICsJaWYgKCFzdHIgfHwgIWxhc3RfY21k KSB7DQo+IA0KPiBDaGFuZ2UgdGhpcyB0byBqdXN0Og0KPiANCj4gCWlmICghc3RyIHx8ICFsYXN0 X2NtZCkNCj4gCQlnb3RvIG91dDsNCj4gDQo+ID4gKwkJbXV0ZXhfdW5sb2NrKCZsYXN0Y21kX211 dGV4KTsNCj4gPiArCQlyZXR1cm4gcmV0Ow0KPiA+ICsJfQ0KPiA+ICANCj4gPiAtCXJldHVybiBl cnJfcG9zKGxhc3RfY21kLCBzdHIpOw0KPiA+ICsJcmV0ID0gZXJyX3BvcyhsYXN0X2NtZCwgc3Ry KTsNCj4gDQo+IEFkZDoNCj4gDQo+ICBvdXQ6DQo+IA0KPiA+ICsJbXV0ZXhfdW5sb2NrKCZsYXN0 Y21kX211dGV4KTsNCj4gPiArCXJldHVybiByZXQ7DQo+ID4gIH0NCj4gPiAgDQo+ID4gIHN0YXRp YyB2b2lkIGxhc3RfY21kX3NldChjb25zdCBjaGFyICpzdHIpDQo+ID4gQEAgLTU5LDE4ICs2OCwy NCBAQCBzdGF0aWMgdm9pZCBsYXN0X2NtZF9zZXQoY29uc3QgY2hhciAqc3RyKQ0KPiA+ICAJaWYg KCFzdHIpDQo+ID4gIAkJcmV0dXJuOw0KPiA+ICANCj4gPiArCW11dGV4X2xvY2soJmxhc3RjbWRf bXV0ZXgpOw0KPiA+ICAJa2ZyZWUobGFzdF9jbWQpOw0KPiA+ICANCj4gDQo+IEluIHRoaXMgY2Fz ZSwgeW91IGNhbiByZW1vdmUgdGhlIHNwYWNlOg0KPiANCj4gCW11dGV4X2xvY2soJmxhc3RjbWRf bXV0ZXgpOw0KPiAJa2ZyZWUobGFzdF9jbWQpOw0KPiAJbGFzdF9jbWQgPSBrc3RyZHVwKHN0ciwg R0ZQX0tFUk5FTCk7DQo+IAltdXRleF91bmxvY2soJmxhc3RjbWRfbXV0ZXgpOw0KPiANCj4gPiAg CWxhc3RfY21kID0ga3N0cmR1cChzdHIsIEdGUF9LRVJORUwpOw0KPiA+ICsJbXV0ZXhfdW5sb2Nr KCZsYXN0Y21kX211dGV4KTsNCj4gPiAgfQ0KPiA+ICANCj4gPiAgc3RhdGljIHZvaWQgc3ludGhf ZXJyKHU4IGVycl90eXBlLCB1MTYgZXJyX3BvcykNCj4gPiAgew0KPiA+IC0JaWYgKCFsYXN0X2Nt ZCkNCj4gPiArCW11dGV4X2xvY2soJmxhc3RjbWRfbXV0ZXgpOw0KPiA+ICsJaWYgKCFsYXN0X2Nt ZCkgew0KPiANCj4gVGhpcyBzaG91bGQgYmU6DQo+IA0KPiAJaWYgKCFsYXN0X2NtZCkNCj4gCQln b3RvIG91dDsNCj4gDQo+ID4gKwkJbXV0ZXhfdW5sb2NrKCZsYXN0Y21kX211dGV4KTsNCj4gPiAg CQlyZXR1cm47DQo+ID4gKwl9DQo+ID4gIA0KPiA+ICAJdHJhY2luZ19sb2dfZXJyKE5VTEwsICJz eW50aGV0aWNfZXZlbnRzIiwgbGFzdF9jbWQsIGVycl90ZXh0LA0KPiA+ICAJCQllcnJfdHlwZSwg ZXJyX3Bvcyk7DQo+IA0KPiAgb3V0Og0KPiANCj4gPiArCW11dGV4X3VubG9jaygmbGFzdGNtZF9t dXRleCk7DQo+ID4gIH0NCj4gPiAgDQo+ID4gIHN0YXRpYyBpbnQgY3JlYXRlX3N5bnRoX2V2ZW50 KGNvbnN0IGNoYXIgKnJhd19jb21tYW5kKTsNCj4gDQo+IFRoYW5rcywNCj4gDQo+IC0tIFN0ZXZl DQoNCkhpIFN0ZXZlLA0KDQpUaGFua3MgZm9yIHRoZSBjb21tZW50cywNCnRoZSBuZXcgcGF0Y2gg d2l0aCBjbGVhbmVyIGNvZGUgaXMgbm93IHJlYWR5Lg0KDQpTaW5jZSB0aGUgdG9waWMgaGFzIGJl ZW4gY2hhbmdlZCwgSSBjcmVhdGVkIGEgbmV3IHRocmVhZCBmb3IgdGhlIG5ldw0KcGF0Y2g6DQoN Cmh0dHBzOi8vbG9yZS5rZXJuZWwub3JnL2xrbWwvMjAyMzAzMjExMTA0NDQuMTU4Ny0xLVR6ZS1u YW4uV3VAbWVkaWF0ZWsuY29tLw0KDQotLSBUemUtbmFuDQoNCg0K