From mboxrd@z Thu Jan 1 00:00:00 1970 Authentication-Results: smtp.subspace.kernel.org; arc=pass header.oldest-pass=0 smtp.remote-ip=40.107.201.31 ARC-Seal: i=2; d=subspace.kernel.org; s=arc20261015; a=rsa-sha256; cv=pass; t=1794637850; b=bAeZIFfQFHGlpPpliHgJ8nOdsGwlGyk0A46SM4QZnuYTEoYNBZ+EbqDFbJAM0bM5gTuy Vn05TCeYPE8wc3Grd5OgFasyhXjiOfyI1SSUbd8m6QUwfEJIRgdUyM5fNbn3MU3xDXsn8 1QFCAqBpTeaPkItZ+5aTkaEqy8MUSRCGW3XyrEGYi9iX4TN1wKjl212Lf/gvjE9vrCG4v Nio7Cu9D4eDxyfc1xTUAcIXvyPqIH+eQronGo4IzLdLFWaGqHXsQ+GxfXZgmPG9LeCSRa kbtn7pAFBBGi51O2aaPyyMVghMnAJf+NqdRollWjtRkoJLbyk2BeWpjKClAKotfcEjQ== ARC-Message-Signature: i=2; d=subspace.kernel.org; s=arc20261015; a=rsa-sha256; c=relaxed/relaxed; t=1794637850; h=DMARC-Filter:DKIM-Signature:Received:Received: Content-Transfer-Encoding:Content-Type:Date:Message-Id:Cc:Subject: From:To:References:In-Reply-To:X-ClientProxiedBy:MIME-Version: X-MS-PublicTrafficType:X-MS-TrafficTypeDiagnostic: X-MS-Office365-Filtering-Correlation-Id:X-MS-Exchange-SenderADCheck: X-MS-Exchange-AntiSpam-Relay:X-Microsoft-Antispam: X-Microsoft-Antispam-Message-Info:X-Forefront-Antispam-Report: X-MS-Exchange-AntiSpam-MessageData-ChunkCount: X-MS-Exchange-AntiSpam-MessageData-0: X-MS-Exchange-AntiSpam-MessageData-1:X-OriginatorOrg: X-MS-Exchange-CrossTenant-Network-Message-Id: X-MS-Exchange-CrossTenant-AuthSource:X-MS-Exchange-CrossTenant-AuthAs: X-MS-Exchange-CrossTenant-OriginalArrivalTime: X-MS-Exchange-CrossTenant-FromEntityHeader: X-MS-Exchange-CrossTenant-Id:X-MS-Exchange-CrossTenant-MailboxType: X-MS-Exchange-CrossTenant-UserPrincipalName: X-MS-Exchange-Transport-CrossTenantHeadersStamped; bh=XbImGnokoq6o7JoIiZ+apR3fDoO5DT9pbiENdElzWQ4=; b=nMBLlict9Od1Rr80uDLLWcY7GexzKfhf6xUvF8lfZPNTKMZbw2xTNRYXG5/0z6ePODjR 5mIZh4ySg5JVKnfGdyn58809+Rb/V3eu0k787cQeNt43E5Sm8ZMe1WzNh241y6yMG/Np9 hjyNJFsZzgmlN/AVxbhmx2qWRVOqi2muh9ZjYAMpQKFB+fijbOFFh/ecw0RnYZbSJu78y 9TTg67lgU3kKRWLfZhUB0D/KQXVNgeU1oyVvXHbR9vk8FYC2FRsrte6FdzBDnmJUHWYMC kNZeGOFx5kTz4uPrVOVyAan6AhFTpU0s0Y8y25uEz9F3guCMDzEz3zx988oqT+XSDag== ARC-Authentication-Results: i=2; smtp.subspace.kernel.org; dmarc=pass header.from=nvidia.com; spf=fail smtp.mailfrom=nvidia.com; dkim=pass header.d=Nvidia.com header.i=@Nvidia.com header.a=rsa-sha256 header.s=selector2 header.b=kdU2Zd9v; arc=pass header.oldest-pass=0 smtp.remote-ip=40.107.201.31 Received: from CH4PR04CU002.outbound.protection.outlook.com (mail-northcentralusazon11013031.outbound.protection.outlook.com [40.107.201.31]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange ECDHE (secp384r1) server-signature ECDSA (prime256v1) server-digest SHA256) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id BAE61606A327; Sat, 14 Nov 2026 06:30:49 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.4.2 smtp.subspace.kernel.org BAE61606A327 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=nvidia.com Authentication-Results: smtp.subspace.kernel.org; spf=fail smtp.mailfrom=nvidia.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key, unprotected) header.d=Nvidia.com header.i=@Nvidia.com header.a=rsa-sha256 header.s=selector2 header.b=kdU2Zd9v ARC-Seal: i=1; a=rsa-sha256; s=arcselector10001; d=microsoft.com; cv=none; b=t1vnz47wCA9ohGwXS+M96Q6NytOboKmGgGsem2jxvzzRHQAR0UqN1qu83r1VOGMZb1uw9WUQFdt4j8sdk6auhcn4cNOTVNks/GcDmYvGBAxmEozYTcHUMJ29BEb49DRBfYUpMaohzEbPjPYiJsfaPoL5eu+AGQoGTjzDKHaFZvwlbSdlCCDTrnZWP2wwNBoVtERo0ZSRsmnqP+a3pH52434ZUqmPfL9IrmZEYD3UQovfcYZ4Nkmzdb/k0YKeyEAQtDO8vwb19417ICWZJ5CBlc+7CuAIQGzUXF04Li2HxpEsRD4xF7ES772G0Nnl9e3SWqybUEMqvencXGRlNlL19Q== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=microsoft.com; s=arcselector10001; 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=XbImGnokoq6o7JoIiZ+apR3fDoO5DT9pbiENdElzWQ4=; b=h4ukX3vFxDaf0KBVeU8oGgHXTq3ESc4yGvh3P1+T4d+CBytLbnovU3Y8Rfdwm55tJyfRgt42FL+XcTJlhUbhth4Hnl9tpJOJeLA6qS6QJQE6L75trjK04QkP/LsBfEk7vlIxOY6CJCeTr4hyhhvigbaYpmjF3cD+R02+QSocZrLzogydwRboivRuE9ncIH0Ng56Df2IO4x48tXb8Se40+qJKoyFfeezKv7P7mYJ5HAVC8ZGJu+He9dMiKlgGMBVV8Ve0vbAfbQZffyPPrggSyPNu9udciE0GXQLZW+f0UdMPpn8uhFQEJu9KltZ56CxPL2xkv5gIMc7vJ4Ann7LDHg== ARC-Authentication-Results: i=1; mx.microsoft.com 1; spf=pass smtp.mailfrom=nvidia.com; dmarc=pass action=none header.from=nvidia.com; dkim=pass header.d=nvidia.com; arc=none DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=Nvidia.com; s=selector2; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-SenderADCheck; bh=XbImGnokoq6o7JoIiZ+apR3fDoO5DT9pbiENdElzWQ4=; b=kdU2Zd9vOk9Oj5nn1sjo94VbK12nXw3rIF+D2gLCVnRnBkBOXWG2MEf7/xBGhSckLuUOtwlxSgNJwyGW7rJqKTFrfd+gbO16CQoVfjzmLD1/Hwgc/6vkAKjqYJItumZPcydqghBvpPhrukOpRH2KOmTj9A7lsPcUIfnEdxCYpEiKU/2RugHBCL0GG8ZtZNQaq8vXZzDwq7Y6GkjCcxgEHT7o5nERGI8kJpvBdTJR9+tB+I29dOl1Tq2RNUdtc5jNohD8EyRrHwIFsR2tRXKVpfiR4Hphiuhr3UGFgi+yI3JzoVlfakZspQZs4w9VRkV/PEW2s9Nb8QTjQWWbfFwOGw== Authentication-Results: mx.microsoft.com 1; dkim=none (message not signed) header.d=none;dmarc=none action=none header.from=nvidia.com; Received: from MW4PR12MB6873.namprd12.prod.outlook.com (2603:10b6:303:20c::17) by PH7PR12MB6585.namprd12.prod.outlook.com (2603:10b6:510:213::22) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.21.592.13; Sat, 14 Nov 2026 06:30:46 +0000 Received: from MW4PR12MB6873.namprd12.prod.outlook.com ([fe80::a338:bd2c:3a38:ece1]) by MW4PR12MB6873.namprd12.prod.outlook.com ([fe80::a338:bd2c:3a38:ece1%5]) with mapi id 15.21.0592.010; Sat, 14 Nov 2026 06:30:45 +0000 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset=UTF-8 Date: Sat, 14 Nov 2026 15:30:42 +0900 Message-Id: Cc: , , , , , , , , , , , , , , "spidermana" Subject: Re: [PATCH] rust: kernel: fix lifetime of copy_from_iter_raw From: "Alexandre Courbot" To: "Marwan Mohamed Zein" References: <20261114024515.1000882-1-marawanzein222@gmail.com> In-Reply-To: <20261114024515.1000882-1-marawanzein222@gmail.com> X-ClientProxiedBy: TY6P286CA0007.JPNP286.PROD.OUTLOOK.COM (2603:1096:405:3b8::6) To MW4PR12MB6873.namprd12.prod.outlook.com (2603:10b6:303:20c::17) X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Post: List-Help: List-Subscribe: List-Unsubscribe: List-Owner: Precedence: list MIME-Version: 1.0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: MW4PR12MB6873:EE_|PH7PR12MB6585:EE_ X-MS-Office365-Filtering-Correlation-Id: 201ece68-5da0-484a-f2f7-08df4218d07f X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0;ARA:13230040|376014|23010399003|10070799003|7416014|1800799024|366016|261009223027099003|261026140227099003|261028144727099003|261022105027099003|56012099006|11063799006|10067099003|18002099003|22082099003; X-Microsoft-Antispam-Message-Info: ZZGAGIQTjSzDd5yv0crV7N8Umz1fzsnt/B/rUPiBvYJzlg38InEbPwetrnItO/JElLHa6JWbGyaLGODbnFvr6k83DW7aiMgFyeJqVZqCUDADO7lNq+6N0ul/nfN/qa8WHxCLrVOx7HkXgHhmD0AYBiGjxRB6fyGXFHTjRUipvfNx8dHVBumzUvzqIKHNXpIU13ANT+B7RSfOHRb9bspq5ve6cy+7L3jR3vEysl04o34E4HT98mWtH9ySLlaqRMX70PQ9Fi9jVhSv4gsxLsGBjFBlMKUtRXAib8ZRRrm7XaruZjrCH4VEb8GBCxkT4wOnJbR6fvnhGHy5Duo4vaEBJmC2ECFqAqhX7z8X/7/vqzmqCsEc4heVzJsfv92csY93IE24xQmKjZ0U2/FipSN/Hq6k1muI9n0fm8bK60UgozaJP10s4QOg7N4jqr+Byv/NEECfT89XyjD+g57vPMIrGxA/E9KNjq6uAujkkjZKUB7jrq9l0Sp0CjNW0aVh954a+MmI/jnlTN+CJkfSHFTxLLCzVGsZORQIdLkt7Ccp4xacdcQ04xOpOBRN0Zm0TY0JjW2GnJm0todA9Wb2CEdsQ7w4XvfRcV80ieV8QIuy5A+bWvtS1HAja6MNNYDP/XS7UztcNzksc63PReLjlFQnFTOFL/nkXnkT1VX21zulKDE= X-Forefront-Antispam-Report: CIP:255.255.255.255;CTRY:;LANG:en;SCL:1;SRV:;IPV:NLI;SFV:NSPM;H:MW4PR12MB6873.namprd12.prod.outlook.com;PTR:;CAT:NONE;SFS:(13230040)(376014)(23010399003)(10070799003)(7416014)(1800799024)(366016)(261009223027099003)(261026140227099003)(261028144727099003)(261022105027099003)(56012099006)(11063799006)(10067099003)(18002099003)(22082099003);DIR:OUT;SFP:1101; X-MS-Exchange-AntiSpam-MessageData-ChunkCount: 2 X-MS-Exchange-AntiSpam-MessageData-0: =?utf-8?B?N0xiQnB5NHZTMzJxbXVWZUExY0dTY0NBdkpsMDZoSzNiVC9vV09mUHpva0ov?= =?utf-8?B?djA2ejZRZjNldnRHUlUwcUtPcnVtVU04THNhN3VVT2JTdEQyL0tDUW5ISm5h?= =?utf-8?B?WHB3QVRVMHQwVTVQUGZGRFVQTkFJUmdISk1XYW1aZk5MdWtyWWllNWsvd3Ix?= =?utf-8?B?dTE5blhILzZ6RHVJWVVUcjltemlBOFJnZXVXOHEzOEhWckVGell3c1FjSkZ5?= =?utf-8?B?NHIwVHR6a1drV1dEMUxEYlBReHpuTjQzWmdwMHBEeGVXWHgzUGkvVy9CUHB3?= =?utf-8?B?Q3gva2J2OEFrbytCRUpYbWhSMUUxbHNBdzdkUDdGakdTTzRWRkp4RG03akN2?= =?utf-8?B?d1lnMjVSTEZqaER2b2Vzek5XNjVJOEUyWEVHcEQ4bnZIWWpFQ1BGY1A3OWR5?= =?utf-8?B?bnFpNWlFRDdscmoxNnJHYUtqTFlUN0dTc1dXS3JVSFhFcG9wU0tTdlNna3FH?= =?utf-8?B?a29Fb2l3LzR3clFwcDA5K2o3aGVhZ1dkdW9ydFdmNGZxc2pFU3BSeGo5R29T?= =?utf-8?B?elVvYkV4YTRIS1BUYjFGdVBNNGpDUjJUN1FnS0puUzZFR0hJQUFEN2UrM0xY?= =?utf-8?B?RXpyeE9Gc2svbHBxQkRTVDU4bHRqTmw0aW5aQWdtU21XcnZjVnpRSFhNTXM5?= =?utf-8?B?b3FRdzJWZmtUZVVpOU9RWldGT3RGTUQxVEJyc0xWek93Tk1vV1BvVUdqRUoy?= =?utf-8?B?ODNyYXFIN1VmOUs4UEZWWml6elpQOHV3cjgyZTZUbVNiSytxeUhncVdpQmVu?= =?utf-8?B?V1MzenRteTFxSGJBMnA1ZC9BTEpsamNRaEhBU1F5UGFMdGZ1VEZzSTlDR3dV?= =?utf-8?B?OS9OMGJXbEVWVU1uMDV4RjdrQkU1Yng1VHczajNPU09CWkJIbVJRQURGYTRS?= =?utf-8?B?UXk0aGhhOGVjYjl3aTNiSmorNTUzWWx5VmN5dTh0amE0QjZWZkdBQ1Y0L3ZM?= =?utf-8?B?c2pVbFpOdFUweERlVWdaeDVJUWVMRFNsSjNTdlo2TVhvUk9ZMDhZcnpKSTVH?= =?utf-8?B?M2FRcS93MTlnZTJtSnFnTlhBdkRpRk0zdWhlY2pXb0pieG5iNmZyczBzYVhP?= =?utf-8?B?Z0VaSGxIT0NoOTV4cndHK09qMmJtUTI3cTh6SzBWS1U5SGNBbTluQkNyQjly?= =?utf-8?B?Mm1DZzF5L2d0TGorREsrYUJsdW5wMG02RUtUR0xYWFFZSVdoM0kyUGNEVGJh?= =?utf-8?B?dDA5cmxPWVZXbjJGTjUrT2xCaXJUeXZoQVJ0aVltN0NldzR1RWNYcjBIaGhi?= =?utf-8?B?RG1uTjVjMVNacGlRcTVmS2t1VVJXc2p0Q3JHQjNpQkxMYnFSZ0oyRFhQeW5K?= =?utf-8?B?UmplUmRiZ3d3S3BhSk9USlg4V09GSUo4M1g0TEhnK0hJaDFIdnFJM0E5RXZD?= =?utf-8?B?TFByL2t1Q2tBckdQNTRDaXIwSGkzRUF1Z2RhdU5VVTEwbm9kaTNMQW5pOFFz?= =?utf-8?B?d1ZmWE4rR2s4N0s0dktuRUdwZDdGL0ZXaDV4TE5md1NnZlUvdk1FWCtFQ3RH?= =?utf-8?B?a0t0eU5qcjFSbnlrbDdnRnlVZko3NDE4ekUyZDB4V0NGWDNxQy9Gc2tPdTBM?= =?utf-8?B?d1BLdTdCOFpIN2xWK0I3bENjdVJhTEh1SjZFOEZONjRUb0tVd3Y5VE1OMjJ3?= =?utf-8?B?eTdseG5iWmk0T0hLUnpkc3J5R3hLK2hoZllDQ1k1dG92NEYvdWtWK25UOFph?= =?utf-8?B?U0t5QWcrVC9EU2h1ZGlQd0hQWnNRdFNwNWtpSTU0TzlibzAxdnluZzY5ak80?= =?utf-8?B?aXJ3cVVMa2xaWml5WmNVM0NXYzNrNFQvTHRQYWU2Nlg0RCsrdlhlWlYzSWI3?= =?utf-8?B?TStmS1ZFR0N5cDBCQXFJKytZVDVpZlV6V1BtNEloRlN6L3hvRTBzdzMxS0VB?= =?utf-8?B?K2pVRzJ2R1pXRXpCYnYrK1Z5UWJYQ0x6UVhZbHFaV1RTelUxS245YU9BK1M5?= =?utf-8?B?YXdUWTVLeHNpRlIzb3FaVnB2N3cxTXEzdWViUTljMjd2RXFRdmZWR0lvTzl1?= =?utf-8?B?UCt2MGhYaFlUYXFMTTBCbXpHWTJPZEk5M29NY1hVdW1BWG5xb2lyQXU5VWRp?= =?utf-8?B?a1ZyL0NkNnk5elR3ekQ0SUVXVlkzTW5xSktjcjFvRUszWHJ0S05lZWFlNGdB?= =?utf-8?B?cTQyclpKVEtYbzkxUGR6b1JMbXVwdmtmR2d1aUpsc3lyczR3UGJicFFGb3dW?= =?utf-8?B?M0dsUVNieGxCNHo0bzA2eTlkWHRTUDRibmczY2NzMUNWbURqMDk3dCtrQkFi?= =?utf-8?B?UHUvNlAvMWpFaWdnQ1o0ZEM2c2ZyOVJjZ1ZZaCtiV0x3RVdnc08xcm1tRllw?= =?utf-8?B?alB2RmxxU0dSb1QyOWYxTGQrWVZDUHdsL3ZzejBINVFHWFdkR1FyZWYrUjVj?= =?utf-8?Q?BMMn8+Gj3/pf13Wp1vuSUjudHpqQ+NxS/XXyXK28hrxpo?= X-MS-Exchange-AntiSpam-MessageData-1: 1B0LTEnubuUeaA== X-OriginatorOrg: Nvidia.com X-MS-Exchange-CrossTenant-Network-Message-Id: 201ece68-5da0-484a-f2f7-08df4218d07f X-MS-Exchange-CrossTenant-AuthSource: MW4PR12MB6873.namprd12.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Internal X-MS-Exchange-CrossTenant-OriginalArrivalTime: 14 Nov 2026 06:30:45.7135 (UTC) X-MS-Exchange-CrossTenant-FromEntityHeader: Hosted X-MS-Exchange-CrossTenant-Id: 43083d15-7273-40c1-b7db-39efd9ccc17a X-MS-Exchange-CrossTenant-MailboxType: HOSTED X-MS-Exchange-CrossTenant-UserPrincipalName: TBwk/0Sv6sMVPRiykxMsEiYy7TYHpy+zvh9J7g9tGXRVV7CWKtVaJ7zCJhM++yhiEX54KhMGH6YrARtvqk/2BQ== X-MS-Exchange-Transport-CrossTenantHeadersStamped: PH7PR12MB6585 On Sat Nov 14, 2026 at 11:45 AM JST, Marwan Mohamed Zein wrote: > From: martell0x1 Please sign with a full name. > > The returned slice is derived from `out`, but lifetime elision > ties it to `self` because this is a method. Explicitly bind the > return lifetime to `out` so the returned slice cannot outlive > its backing buffer. > > Reported-by: spidermana > Closes: https://github.com/Rust-for-Linux/linux/issues/1265 > Signed-off-by: martell0x1 On these tags as well.