From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from MRWPR03CU001.outbound.protection.outlook.com (mail-francesouthazon11021113.outbound.protection.outlook.com [40.107.130.113]) by lore.virtuozzo.com (Postfix) with ESMTPS id 2B2A68045D for ; Mon, 2 Nov 2026 10:40:56 +0000 (UTC) ARC-Seal: i=1; a=rsa-sha256; s=arcselector10001; d=microsoft.com; cv=none; b=C0l+IZsftuTezkwHxGbe2OFdXjxDoNXfJCtWfsUG8cp3Lw+2Iws6rDS9q3gfPuSR9UZO8tQJJ8ItbEqPAcSB9DTGE0jpqMcnNtCErtlM63ue/MvntaxG1ryeKkHXs8RpvsyRA6ayKhJ6RN42PFPP4HPzR00eanayW1J16w86dX49fjQvdURUXKj3hFky9h+PTDDJwbESvxpgmwo9b8bGiooIdpn32mQ5s+5G00aSraSy/8Qu/kTcjyoM1Um8CyuiKeITxRr951zNcaS9+/71wM8z+wwIF+v7JMASLb92UdskNdmau+f6lsrojGwcKCker9Qnym7+TigN54PiAx+JYQ== 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=WbbOFzcONbtGlVZIr4ziuFiN+zbHK1TDwiOOU0arlpY=; b=A1OKwV7/ouglfG4JAfHUxPYWRTF3bgipQPT21fuEJw53JUx12P8kReGq1vWjTrPgvPSAIOAVjBM1l8Qr+swLt7xLaCKUvt2u6VAZJPWUA0Gq1B3Fuy+0b0y1xqYv1azyCHgtInbINE4RI/LRQvPui2Cl/vgj3hA7R433wUC+EBl9+eDIaMJuUxo/fiG0zXbPbgfHblg1Rt27Cvx6A6RpkAwYbzadsMaH2xqN7fQV4wz3BgpiFoqQEH67IA3X906xS+F9jcJhe3hQh2b5cUhkVVQyfDP5EL1+JnRA19F2S5XAqneV29INc6SnL+fO08uYH17/6tWYCq9iXECkvBVc1Q== ARC-Authentication-Results: i=1; mx.microsoft.com 1; spf=pass (sender ip is 69.169.224.5) smtp.rcpttodomain=virtuozzo.com smtp.mailfrom=eu-central-1.amazonses.com; dmarc=pass (p=quarantine sp=quarantine pct=100) action=none header.from=sashiko.virtuozzo.com; dkim=pass (signature was verified) header.d=sashiko.virtuozzo.com; dkim=pass (signature was verified) header.d=amazonses.com; arc=none (0) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=virtuozzo.onmicrosoft.com; s=selector2-virtuozzo-onmicrosoft-com; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-SenderADCheck; bh=WbbOFzcONbtGlVZIr4ziuFiN+zbHK1TDwiOOU0arlpY=; b=Q2CBiiUMZnZP3PZtROFpL5r7tqsQN3hzTytC/D7aQpXsMT25YU+KkS0ICQl/8fgoOzrzf8WY63Uqhb+WUtkTvL84kT8kLdoWT1nVKJA3aoRfTuVEohE3Be4b4MxpdfFtoZJ8TITHR27oQdT7X6Tw3A6MvZRIRscuOzkk7+DpYfI= Received: from AM0PR02CA0148.eurprd02.prod.outlook.com (2603:10a6:20b:28d::15) by DBBPR08MB6122.eurprd08.prod.outlook.com (2603:10a6:10:20d::22) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.21.569.12; Mon, 2 Nov 2026 10:40:51 +0000 Received: from AM1PEPF000C1ADB.eurprd02.prod.outlook.com (2603:10a6:20b:28d:cafe::80) by AM0PR02CA0148.outlook.office365.com (2603:10a6:20b:28d::15) with Microsoft SMTP Server (version=TLS1_3, cipher=TLS_AES_256_GCM_SHA384) id 15.21.569.12 via Frontend Transport; Mon, 2 Nov 2026 10:40:51 +0000 Authentication-Results: mx.microsoft.com 1; spf=pass (sender IP is 69.169.224.5) smtp.mailfrom=eu-central-1.amazonses.com; dkim=pass (signature was verified) header.d=sashiko.virtuozzo.com;dkim=pass (signature was verified) header.d=amazonses.com;dmarc=pass action=none header.from=sashiko.virtuozzo.com; Received-SPF: Pass (protection.outlook.com: domain of eu-central-1.amazonses.com designates 69.169.224.5 as permitted sender) receiver=protection.outlook.com; client-ip=69.169.224.5; helo=b224-5.smtp-out.eu-central-1.amazonses.com; pr=C Received: from b224-5.smtp-out.eu-central-1.amazonses.com (69.169.224.5) by AM1PEPF000C1ADB.mail.protection.outlook.com (10.167.242.106) with Microsoft SMTP Server (version=TLS1_3, cipher=TLS_AES_256_GCM_SHA384) id 15.21.592.5 via Frontend Transport; Mon, 2 Nov 2026 10:40:51 +0000 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/simple; s=23yjbh4k34hwzfubhuiim7m4inbd3ick; d=sashiko.virtuozzo.com; t=1793616051; h=Message-ID:From:Subject:To:In-Reply-To:References:Content-Type:Content-Transfer-Encoding:Date; bh=ihMedsMY/txCzLqMdYMnuI2az+XnORBH0ZbQOj3yv30=; b=ngeDrsaMMuUcJkJ0wMUq8dcrZelwnqUt1y9TZLhabCnCSXVKcQS0cZv4hD5V/qoj iZI9YaNXbaeu8vgCkfQUxzAkSo2/QN6rxYZ+jhQwDkjGdY5IjssqexvAzGwInTMq/k9 rvEzaGeeOKOBW9BuqKKdfDwLmT2AK7ioXeh1pkeXH2YoPlUqvTrLCocJDz8TmiYOEYJ pdHGv5U/GKFxYWOEAGcHpWx65KJcnxWHRewQNH56Ue00JzebbfGyzVaLqueZMO7JcR6 Q6AefAMH5d8tlh52QVD0ZYJjIbbYISiHyIUTDYm/WYc2+opb7c5CGuss9MYYhOZuMFc uV6uNQulgA== DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/simple; s=qftdzk2dqsatjnlrq4r5brjbihpfcrsh; d=amazonses.com; t=1793616051; h=Message-ID:From:Subject:To:In-Reply-To:References:Content-Type:Content-Transfer-Encoding:Date:Feedback-ID; bh=ihMedsMY/txCzLqMdYMnuI2az+XnORBH0ZbQOj3yv30=; b=I9YPHUZIrXF2WGE1uV5oSmGzq5hWQg6UdKlTuJ9ayjOYmRhfalnQYCdWvM0Qwa55 ZRn6MUU/Iy7KWHAMzzj+zKumUrb6/wRolMmY1sctuZLwGMLmvRk0w8zxPALj8GufjpL /r6cwgvdCfjvPXZEkeMZ4i0OVPvggGBhl9yUR50g= Message-ID: <010701a19bd8fcb2-01cd2acb-5cac-448a-9ced-36172264a96d-000000@eu-central-1.amazonses.com> From: no-reply@sashiko.virtuozzo.com Subject: Re: [PATCH QEMU HCI-8.1 v6 03/34] vfio/region: create BAR dma-bufs with O_CLOEXEC To: svt-core@virtuozzo.com, Andrey Drobyshev In-Reply-To: <20261102-vfio_v1-v6-3-9bc7cabc850d@virtuozzo.com> References: <20261102-vfio_v1-v6-0-9bc7cabc850d@virtuozzo.com> <20261102-vfio_v1-v6-3-9bc7cabc850d@virtuozzo.com> Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable Date: Mon, 2 Nov 2026 10:40:51 +0000 Feedback-ID: ::1.eu-central-1.2wRQJBpg9g1fGRYexx3dUuYGS25Bux+2TEOx72/m6U4=:AmazonSES X-SES-Outgoing: 2026.11.02-69.169.224.5 X-EOPAttributedMessage: 0 X-EOPTenantAttributedMessage: 0bc7f26d-0264-416e-a6fc-8352af79c58f:0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: AM1PEPF000C1ADB:EE_|DBBPR08MB6122:EE_ MIME-Version: 1.0 X-MS-Office365-Filtering-Correlation-Id: c7153a55-d539-430f-343e-08df38cdc411 X-LD-Processed: 0bc7f26d-0264-416e-a6fc-8352af79c58f,ExtAddr X-MS-Exchange-AtpMessageProperties: SA List-Id: svt-core@virtuozzo.com X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0;ARA:13230040|704160211799003|48200799018|376014|61400799027|9140799003|32142699015|4143699003|5063699009|56012099006|261009223027099003|261028144727099003|261022105027099003|261026140227099003|10067099003|18002099003|55112099003|22082099003|16102099003|5113699003|4113699003|13003099007; X-Microsoft-Antispam-Message-Info: =?utf-8?B?Nkx3THUrVzY0MnNjMytvYUJlL29nODVjYmZCbHhSdUhDYlpmaHBnS04zVEdX?= =?utf-8?B?a0k2NDYyRHpQQ1dPNXY5Y2RUQnplYVNCaFUwSGNJK2NHcTJVWC9LWWM3YWNj?= =?utf-8?B?MmkwYmo4NTdRRVkwYnNIWEVmazFEZ2cwaWlwd2dyV0g1VE5TbmNiSmRJWkpD?= =?utf-8?B?Uzd4enhIaFQ2aENUaXRjcFMrR1RxSUh2UHdONlp4azR6a01Zc3BWMmNoYy9G?= =?utf-8?B?a0pPeDByOC81V2tOTXhoL0hTdmRSU3dTWUxMN3VoSlZuSUk2anBrTEhVQXJH?= =?utf-8?B?K1Z1Y0hOT3VaWFA3emd4RkcrbWJsa25FWHFHcW1VZEkvdU9BZ0NRbDdpaWJQ?= =?utf-8?B?aGV6M1RoWGJhcVlRYTFKaVoyR2tNbFhCRTBOSjBHSnZRM3pFYmc0ZDFvaXR3?= =?utf-8?B?MHFhSGRNTTcyeWNNY1I0dmF5SXVkQ21oRFlndTgvZkQrNFpvdkJpTFFPSDVo?= =?utf-8?B?Nk9EcUh5bVdvdjFtU21Jc0ZjVjZWcUNpUWVkVHJzVGcwSTlmQXhZZENCY3c0?= =?utf-8?B?WnN5MWVNWVNFWnZKYUViaFVzdWgvcDFpYWxMMGd0cDR1clJRaTFpWEZQaFVI?= =?utf-8?B?WENyQUxseVFhMFE1VSthSDJGWkJxdWhKZmZYZHYrUmg5a2diajZHcitlbEs0?= =?utf-8?B?NHYvaTJ4d0swZXJERDRTVWt5NkszT3YwY3dtaG1TNWdLMXg2STRBNFhSTHY2?= =?utf-8?B?bWpQRkNmSC9uMVVsbHpLTlhteDJlMUlQV1FzZmZCMnFYSlVPUGpPcmFHWGF3?= =?utf-8?B?VmhXZ2RtTFdqRlBJbU55ZXdVbG5MZldPR1FqbUN6a1ZHekZmVVNDY2wxQXdz?= =?utf-8?B?cUlVQ1pvZFhYb215Ymp5aUEyZ3lBaUxwMFdldXJiK3JLODRMOU5qUnBHSk1j?= =?utf-8?B?T2ZkUDZqZFBEZnh6eGpaN2pyYm5YYTFSQ3ROeVg1Sk5YRlQxUFh6b1p3am1E?= =?utf-8?B?NE04L3lvUnJYZjc1YTM0N2xqQUVxZjE1a3crSmhaNzhwbzA2NEY3U0gxVTlI?= =?utf-8?B?WXNBOHdhSUs1TEtzeGREQWw1TUx2cXY1dURzeTBENUtaM3AwTVVJWFplQmZ3?= =?utf-8?B?N2diWWNQaXNZZWIrS2l6KzZ6OGxiWlVRUWtKbU95WlpTQktaeDRUWnZBSVdN?= =?utf-8?B?NjFaRWRFUkJFaHA2Ky8vWVlwMk1RZ3gxV2ZtKzRCL3I4cEo1SUpSY0hKVlI0?= =?utf-8?B?OFNxOEFBQlNYZElSVGJpSk80S3k2TWw4bnZEaEJEd1k5VTZobzZnaVJ1ZEtF?= =?utf-8?B?WTJDSEltaW1YYmdjU05PTXl2eTdkaUV2MXJRckZwYkhjblVGbTZYaG1MQ3JP?= =?utf-8?Q?yvnUrZ0JdMsn3GCDtfmnn/dDSB11gb1vE0?= X-Forefront-Antispam-Report: CIP:69.169.224.5;CTRY:US;LANG:en;SCL:1;SRV:;IPV:NLI;SFV:NSPM;H:b224-5.smtp-out.eu-central-1.amazonses.com;PTR:b224-5.smtp-out.eu-central-1.amazonses.com;CAT:NONE;SFS:(13230040)(704160211799003)(48200799018)(376014)(61400799027)(9140799003)(32142699015)(4143699003)(5063699009)(56012099006)(261009223027099003)(261028144727099003)(261022105027099003)(261026140227099003)(10067099003)(18002099003)(55112099003)(22082099003)(16102099003)(5113699003)(4113699003)(13003099007);DIR:OUT;SFP:1102; X-MS-Exchange-AntiSpam-MessageData-ChunkCount: 1 X-MS-Exchange-AntiSpam-MessageData-0: vPe9eoEcrm/WuWsy9zjtmib0tc6mKLVXPbFrK91BxJqQQkixl3GQNq7to7go4zYNX8mlQd4qYA2/y3lSnaa8aWmEg8E4wdzp3FI6tLXY+pP4RM6EIO5p7VZ5qni5gcF1/qYFVxfBe4/dd6bbxy2F2IQsO8l38YyRE7TA7T/qPSEVhDlXNfR+2wuU0oqZ/Rym0mTZYdVq73yoTKeM/eo4YdPqX81YxnlUKafOOAIJaPY/kpcVDY1rkAZEW+pSOdSrH4+TCMxMjwZuDoB+bsKk5VyezdDQzwS4kGzKS5eGAdeE4+WBwm3INkXNiE7q7dEdiiq9aU+EKPqik84BKANotwC8LxyAstFLv6jrBycjD0OtLP43R1w+q710IRPSzit0zXRSEF3HVwH2SRk5lUR2qa6V9qsFbkkvRnTZaGwtFzdHM26DmM/zlfzZR4fiAXVG X-ExternalRecipientOutboundConnectors: 0bc7f26d-0264-416e-a6fc-8352af79c58f X-Auto-Response-Suppress: DR, OOF, AutoReply X-OriginatorOrg: virtuozzo.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 02 Nov 2026 10:40:51.8205 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: c7153a55-d539-430f-343e-08df38cdc411 X-MS-Exchange-CrossTenant-Id: 0bc7f26d-0264-416e-a6fc-8352af79c58f X-MS-Exchange-CrossTenant-AuthSource: AM1PEPF000C1ADB.eurprd02.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: Internet X-MS-Exchange-Transport-CrossTenantHeadersStamped: DBBPR08MB6122 > The dma-buf fds are created without O_CLOEXEC, so they leak into any > exec'ed program. With cpr-exec, every update leaks one fd per mmapped > BAR, as new QEMU creates its own. >=20 > Fixes: 96163e0dbcb4 ("hw/vfio/region: Create dmabuf for PCI BAR per regio= n") > Signed-off-by: Andrey Drobyshev Sashiko has reviewed this patch and found no issues. It looks great! --=20 Sashiko AI review =C2=B7 https://sashiko.vzint.dev/#/patchset/20261102-vfio= _v1-v6-0-9bc7cabc850d@virtuozzo.com?part=3D3