From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mgamail.intel.com (mgamail.intel.com [192.198.163.8]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 767224B1E7C; Fri, 9 May 2025 09:34:32 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=fail smtp.client-ip=192.198.163.8 ARC-Seal:i=2; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1746783274; cv=fail; b=MsV+dKZ2EEcE57gcRvctH6TmVMw+1pjOXpiI+VDFRdd6a3heRQMQMsqtV2yXA0mJ9IxIBfKI6ECCkzKoNGVu/+YxDA1KlDOV7V+65sJdRDoD9zF8f2BaE+hfxQUxZ149qnN6knXiXmcM2mSLozopBTGw2RgJ8L7IynFD8QDGpIc= ARC-Message-Signature:i=2; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1746783274; c=relaxed/simple; bh=0o8CV+IvsEiN8kGiTxyeRqdB6DhRw0RiPGWeBAD3Hvs=; h=Date:From:To:CC:Subject:Message-ID:Content-Type: Content-Disposition:In-Reply-To:MIME-Version; b=J/HL07b9u+HDbQKQSI0oE0r/AE2vPv6WbEmAGwVQCT8N3QAUsh7vZbcNblPryCKR/ridj+dp0XZk58zYviSSLVUP8qBZWeHLhDOZFt6RFlPQ41jq4e5D3yfUYrCGBx99DlsY6M115ZDnr4J6FJ+7ChbGZmzvNepjdGreBnsaQF8= ARC-Authentication-Results:i=2; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=intel.com; spf=pass smtp.mailfrom=intel.com; dkim=pass (2048-bit key) header.d=intel.com header.i=@intel.com header.b=i/nyMrmT; arc=fail smtp.client-ip=192.198.163.8 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=intel.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=intel.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=intel.com header.i=@intel.com header.b="i/nyMrmT" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1746783272; x=1778319272; h=date:from:to:cc:subject:message-id:in-reply-to: mime-version; bh=0o8CV+IvsEiN8kGiTxyeRqdB6DhRw0RiPGWeBAD3Hvs=; b=i/nyMrmTXJLCL+B3aBljb5ZvJyMzGmF8fQZSjmqIl6PpPKT4+aCmECLw PKjb1N9essPeWkFF60HMsBDaIH9WEbKRgBYjfwQzFJOQenIWuXmE8i16h ZnxhkmnAcSVyZss546KIr8GFqmJWphPr3ICtDVtj5t+RVK67Sq4fkdba0 usvX9XwMNAnl5Cy5ulnullT2m3kQs1OEXdR5z1mmhmnGQvxIDJA9M5BC4 HGGLC4kzCI5O7bIWiTuTJ9puGN7TLhwU5HBtfvj976jmMkwPG4AgEBSzn R3q4bWrCnFHrPOjpOcA4UIO8GI4IATF5WN2paQdDy3YUIxl5oOwFK25hp Q==; X-CSE-ConnectionGUID: VAhWZI89STGzlWaFewj6yg== X-CSE-MsgGUID: eWRboRLUSY+S6Xl/KAO5qQ== X-IronPort-AV: E=McAfee;i="6700,10204,11427"; a="66137625" X-IronPort-AV: E=Sophos;i="6.15,274,1739865600"; d="scan'208";a="66137625" Received: from orviesa002.jf.intel.com ([10.64.159.142]) by fmvoesa102.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 09 May 2025 02:34:31 -0700 X-CSE-ConnectionGUID: D46UGLE+TtS3YZ+pBDeK1Q== X-CSE-MsgGUID: l05xFqAFQsCkUMiiZ17gOQ== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.15,274,1739865600"; d="scan'208";a="167499543" Received: from orsmsx902.amr.corp.intel.com ([10.22.229.24]) by orviesa002.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 09 May 2025 02:34:31 -0700 Received: from ORSMSX901.amr.corp.intel.com (10.22.229.23) by ORSMSX902.amr.corp.intel.com (10.22.229.24) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.1544.14; Fri, 9 May 2025 02:34:30 -0700 Received: from ORSEDG601.ED.cps.intel.com (10.7.248.6) by ORSMSX901.amr.corp.intel.com (10.22.229.23) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.1544.14 via Frontend Transport; Fri, 9 May 2025 02:34:30 -0700 Received: from NAM04-MW2-obe.outbound.protection.outlook.com (104.47.73.170) by edgegateway.intel.com (134.134.137.102) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.1.2507.44; Fri, 9 May 2025 02:34:30 -0700 ARC-Seal: i=1; a=rsa-sha256; s=arcselector10001; d=microsoft.com; cv=none; b=JaRR45r6zDxd5qBzMep87QrsEZq7uOpv9RHtKsI/dDP0S9TkUwfvxnhkqKGL11AjpmX5ekoVz0gjO0ddjrXTc6WfgZ21NjnqFSAho+uLoGx969U+gMthFYSVNXLGujlmx27ha/PUKeyPHpuNWxfsOkf/KmTwAo/122LHwTR/tRX6PqUBSTLswXSaPwdMkyxhQIUNa/ls856NAyjXvSAa1uqMgOYMkyDU8wiFoZPX1KQO/ewz2VgOwDwvZtJtFSJm/tIaLrjHeXXsBLQyffQMpBwtbo0Jx9nNLDiPxBELZ5Q0b/OEi/q1dBTYl+MUaw/PjSLprMbwMCXjCkw0YY1tsw== 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=2tTurUHspoI76NSKWddFDKhABqGbX3pH349gVo0gHJ4=; b=cngTTonflaivj7lPsWwcu0w4lKwPf2l+TMOXDOzfacg+dkpWmSNahUTjFOyR7bvpjgIeIkyXdq1vgBsf7pl/212eeeFrDLTyDI7iyI6XOMRQgtCC3wy29URZfDpSe2Iru9Ult5LZwT9z0AWJ0LdWO6B7iSq4qdyHSxnX+gmrFx9hu6wxgrb64taCTO+L2unlZcNUQ2zLBFqs9iQXfp6xXs5f+TuvtSKCR+MkNBl41ytKo9fclw+A8eROcghybnzxsMq1BVnsebNnCdNhgG6rXU5k4RZMcbPzXurYHcwRdTSPP7VcMqMbO179IkkG8v22MBKIuaq4rtISSqiJzDCayQ== 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 Authentication-Results: dkim=none (message not signed) header.d=none;dmarc=none action=none header.from=intel.com; Received: from LV3PR11MB8603.namprd11.prod.outlook.com (2603:10b6:408:1b6::9) by CO1PR11MB4914.namprd11.prod.outlook.com (2603:10b6:303:90::24) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.8722.20; Fri, 9 May 2025 09:34:22 +0000 Received: from LV3PR11MB8603.namprd11.prod.outlook.com ([fe80::4622:29cf:32b:7e5c]) by LV3PR11MB8603.namprd11.prod.outlook.com ([fe80::4622:29cf:32b:7e5c%4]) with mapi id 15.20.8722.021; Fri, 9 May 2025 09:34:22 +0000 Date: Fri, 9 May 2025 17:34:09 +0800 From: kernel test robot To: Herbert Xu CC: , , , David Howells , Jarkko Sakkinen , Lukas Wunner , Ignat Korchagin , "David S. Miller" , Peter Huewe , Jason Gunthorpe , Paul Moore , "James Morris" , "Serge E. Hallyn" , "James Bottomley" , Mimi Zohar , , , , , Subject: Re: [v2 PATCH] KEYS: Invert FINAL_PUT bit Message-ID: <202505091721.245cbe78-lkp@intel.com> Content-Type: text/plain; charset="us-ascii" Content-Disposition: inline In-Reply-To: X-ClientProxiedBy: KU2P306CA0083.MYSP306.PROD.OUTLOOK.COM (2603:1096:d10:3a::10) To LV3PR11MB8603.namprd11.prod.outlook.com (2603:10b6:408:1b6::9) Precedence: bulk X-Mailing-List: linux-security-module@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: LV3PR11MB8603:EE_|CO1PR11MB4914:EE_ X-MS-Office365-Filtering-Correlation-Id: 4353390f-0ad0-4eec-859f-08dd8edcae18 X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0;ARA:13230040|366016|1800799024|7416014|376014; X-Microsoft-Antispam-Message-Info: =?us-ascii?Q?lD+9mkDYVGsdiGRe+jitGY55v47+LJgKU8qncVZs2BH1Aui3hePPQAm0jsox?= =?us-ascii?Q?WX1X9VoATgj2O0YowhbjpCVxYUCrhCwiMDR3IXF8FNjniHDJiKy+YGH+DXwR?= =?us-ascii?Q?xzmUwjGZAs5INxPVYoD/38dM+HfYhUnPIKkNW1Lyec+ZgLqKld8JZjbczzRh?= =?us-ascii?Q?8cEaYSv0d77RFrowt2g6CTQpfTk4Fzk83kq2eij+Su1DYi6nRn2S0c722gGH?= =?us-ascii?Q?BZVo81KjaaMzuM3tt1I2/cgHJr7L00hpjUqHb0FPoF6dc6mfKpVnZiV9+RBS?= =?us-ascii?Q?p/kemRJjWXgZjmy0SImf2Kk0BJng4uY40wk2rpfv4WFLTbnWI6hi9/iDYRxN?= =?us-ascii?Q?Nur55lKQK8dUHYNZRUpEYwHgRhDPTWdaAbGknkwwzLVgSNRJigRy29qyYywd?= =?us-ascii?Q?zsbpT/ktRpo/R4VQFTJJjjgkDuW4xYGno3k9hpUuwliYBV88Hk3Df3oEtGsT?= =?us-ascii?Q?bGsRafbQje6y3wa1NKzwWwfcijgWAMXNs0GdZsqy0dt8B7fTid3h87yFSsop?= =?us-ascii?Q?0t5gJtKyjkfEBpjGhyZfJj32pBjN5sUI6oCX7SXd784QxsidZ+0PL7dJLrs1?= =?us-ascii?Q?27UxOuWfZow74qJq0EJJNhwg1fhBreHzmF8uvr63aFNo9MNPtbC0X17T09i8?= =?us-ascii?Q?1vjjltoY5qvLjUQwJZw1WZdjeMLDU0QCVln4y3Sk/FyKrslISGPgVRKpw7Tg?= =?us-ascii?Q?OALqQqEv1jt0EfguBgQ7De3bAR8cTo5uI76K31eG0Aq5FQyObTKrrQcvqexi?= =?us-ascii?Q?dN8XaSM4VxGldidzDIK2DZE1GxrJdCdmEVfbyn4SaQ2Z7XKhyrQNJNz5v3Fz?= =?us-ascii?Q?lOifeJEmrXvIeGC19vRAcjmDsal+EQMT+g83u1Xg3ZBUnIdo8N0zckElgCbr?= =?us-ascii?Q?/FVEXwWR4lbxyEWJRlULDycQmmfBr3zVT4ToaRSwiTu1kHENesexpSO7RsqV?= =?us-ascii?Q?t7aQ0bl2CGnHu38AiTDasswFSQibbQSaWOVBGs4cxeAeELwG0CJJBDycU/6R?= =?us-ascii?Q?g1kL1+2toaj4eV6DY8OgG+q4uPDFiy0jd6FkxDF9DsAR+9eLaWu2qCenQb97?= =?us-ascii?Q?BXxh2Dcx7+R9n2wCyUPNsHsltfSleUh5dI+Jk7fhElZKnlYMsHDiAdm868uK?= =?us-ascii?Q?lh0aGgIrQ5w/ZH2D+LUwOosJoYRAVitvyKlp75gV52NlW0ZqHfUkoyjW8VHU?= =?us-ascii?Q?TjNt+jwXrR49DqJOMlxZRUnOxg3E00xYcba1SWU6LnmtnOnA/Nw5r52Bn/7g?= =?us-ascii?Q?QbytOOWinh7E4jpwS/FXEjKwmCRLzxFGG8dhmdX4jNRz2FYdVkekbPdJox/A?= =?us-ascii?Q?wCH77r/cAtJTspirjEO2NGlRjPYJW3z/RJ7YgbURM95w6Zlt/Oun1f0acLMo?= =?us-ascii?Q?hYLKhDHh1ArfNNDxyddqXTMDts5e?= X-Forefront-Antispam-Report: CIP:255.255.255.255;CTRY:;LANG:en;SCL:1;SRV:;IPV:NLI;SFV:NSPM;H:LV3PR11MB8603.namprd11.prod.outlook.com;PTR:;CAT:NONE;SFS:(13230040)(366016)(1800799024)(7416014)(376014);DIR:OUT;SFP:1101; X-MS-Exchange-AntiSpam-MessageData-ChunkCount: 1 X-MS-Exchange-AntiSpam-MessageData-0: =?us-ascii?Q?RK195qBP3BWbBWgiWOHw/JookeTklOO138tAoKUt9H6+Pm2gIbmdTXwG6+Nk?= =?us-ascii?Q?xEvlwZebukb/oxq5m/ETFQjx/Y1gNCuiNW0y/rhwiZ92w5d87DSyOKbP+iyf?= =?us-ascii?Q?7sN21OxzT0MEYRW4tx70rU+R8K+SbzqXhii/QFQ1XZqKMRCQJ1q5bl19z+eX?= =?us-ascii?Q?nJ1zUb0pvjMdupa2MBmh/uTIl0GbtN59P+yBKaz8YTRQmEUbTSGfgNauo3ar?= =?us-ascii?Q?49EJ6IE7HcHu/lh2COMQN+gTPp9Ch/XI18Um0A4a0Wtn7RSJ8JFNLMZvVfW9?= =?us-ascii?Q?hdEE3B2SQq4bwyIVtu4PYTUSgUAmlfvEqCcf6dRdig8kd07w8ZSekB1TpPL1?= =?us-ascii?Q?giE/rKXtKp8ZcujEv0xc1ruRVKPt8o6otZQ6iPFOx7kBf0CpfI4P+v51aeWD?= =?us-ascii?Q?qM5hzeqLN3MyM1W5mWQjLmdc/UYgtDnB6ELPsaAb5BGJLCMQH5Am2JiKKVY/?= =?us-ascii?Q?l1cphDX/onNQmhbxetGnyy974p4ddR3IZfPzIIJB7rUV0f2UVIZNewaIwIKR?= =?us-ascii?Q?brzUFNRvYQsNCN45Cj6+DDquR1Gf2GFgo0YV4UTDD3NwjIDHdar6d9qaIRHk?= =?us-ascii?Q?4P3VnE/YxT5qSu5GPE5tSzKeIQLCR7I3Jl6RpcIayjFZiZXAETukRulClgSw?= =?us-ascii?Q?2futsXTfHmcxbuwTAtP7n+bL1tLxDSHe5waybBwbQIEESdeWYvFyIv2NyMkw?= =?us-ascii?Q?xk1uJyIZnjanW46xeWzDlRmuaGaenWC/NAVr3eHudnNEXTx9p2saXndH9Lzd?= =?us-ascii?Q?BSIElMgqlJqcQgG3O2GA+jlxqLc9sr66FStG30QZRAs4sjrXHoP1vnH1ZUtP?= =?us-ascii?Q?t8iDudDXPMyTAru7LNIQm0rLFJHmsVsTGWgGXJCs2buwmeTKcSjamuV0yp9M?= =?us-ascii?Q?nJ/M7SK0oesI+U6wb6Av0yDwz814gFsiHM+YSMNWkxBJLtC4N68XzE8gmzuV?= =?us-ascii?Q?RvSqe1BPmslCg8zkgzlUXpYVwkfpyKNTrirXsS0KFloKzX7W8n9U55Yk2HaT?= =?us-ascii?Q?R/Y3OsUVu7icfTP+Ub7W14Uf5TL3YaoQqO4nL/5BbypJYkx4nyCI0UT1+eD9?= =?us-ascii?Q?Fq/zq8lxSeVCTD/CRndl+dLgo4nXd1gkoNqZ95NKvy1fpcbVfByDAJfG+vDA?= =?us-ascii?Q?TIzsFOETIugBSrq9giL5fPE1a2XEAXuLnDz6enISyrNR6VbsWy9rVBo1NDEO?= =?us-ascii?Q?HT5O/hCVyACa9SbFdTt3PZBosUHZIbQKl7/R7BL0/R9j4fu+H5tTwhNt74gR?= =?us-ascii?Q?V9k9KW+10l5uMnnsnQQ4rhKvtsERm3s2qmC3D/iHTZZzGzKkCyW4sL2FPGAE?= =?us-ascii?Q?WdB5aWlfyDHQrrFjPYW1MZJogGVMApSeIDRDQyF8XcEcBV/utheaAncTTdD9?= =?us-ascii?Q?wH/4s2jbSMaL5o3jNwNPJgdmvYs+bErnQ8Ew2PUeBGtRphF3czf+fxvn3jJ0?= =?us-ascii?Q?smQFmFMTVAjenSWbFsJANyTjedfZqqY6zc7KZvi0pHv3pfxDh/d1P5BHWqQt?= =?us-ascii?Q?bTvK3VmbPliN0O92yZsxyqTUJCWrnzlrqKqJ35xbdvIBeMwEesinmVYe8kCN?= =?us-ascii?Q?DNhSwSOoCjaVu9p/EOiUBKNG0aFkrmgW+JJzcren6NVYGHCYNOJjYirHahnx?= =?us-ascii?Q?6w=3D=3D?= X-MS-Exchange-CrossTenant-Network-Message-Id: 4353390f-0ad0-4eec-859f-08dd8edcae18 X-MS-Exchange-CrossTenant-AuthSource: LV3PR11MB8603.namprd11.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Internal X-MS-Exchange-CrossTenant-OriginalArrivalTime: 09 May 2025 09:34:22.4762 (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: ZSgdPzf1vqVjYQH5fBMEvF39e5EpXY5WMCaKHgvbww8HVS25x4bOi/loSDfCJaTM7UIuPxMsIwPcbEkdRbqmAw== X-MS-Exchange-Transport-CrossTenantHeadersStamped: CO1PR11MB4914 X-OriginatorOrg: intel.com Hello, our bot applied this patch directly upon v6.15-rc5. could you let us know if this is a correct appliment? * a78cdfa4388ab9 (linux-review/Herbert-Xu/KEYS-Invert-FINAL_PUT-bit/20250505-122533) KEYS: Invert FINAL_PUT bit * 92a09c47464d04 (tag: v6.15-rc5, below reports is based on this appliement. kernel test robot noticed "refcount_t:underflow;use-after-free" on: commit: a78cdfa4388ab9b210c804b92453f14bbe199cbf ("[v2 PATCH] KEYS: Invert FINAL_PUT bit") url: https://github.com/intel-lab-lkp/linux/commits/Herbert-Xu/KEYS-Invert-FINAL_PUT-bit/20250505-122533 base: https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git 92a09c47464d040866cf2b4cd052bc60555185fb patch link: https://lore.kernel.org/all/aBccz2nJs5Asg6cN@gondor.apana.org.au/ patch subject: [v2 PATCH] KEYS: Invert FINAL_PUT bit in testcase: trinity version: trinity-i386-abe9de86-1_20230429 with following parameters: runtime: 300s group: group-04 nr_groups: 5 config: i386-randconfig-014-20250509 compiler: gcc-12 test machine: qemu-system-x86_64 -enable-kvm -cpu SandyBridge -smp 2 -m 16G (please refer to attached dmesg/kmsg for entire log/backtrace) there are other (random) issues as below. +-------------------------------------------------------------------------+-----------+------------+ | | v6.15-rc5 | a78cdfa438 | +-------------------------------------------------------------------------+-----------+------------+ | boot_successes | 80 | 0 | | boot_failures | 0 | 48 | | refcount_t:underflow;use-after-free | 0 | 48 | | WARNING:at_lib/refcount.c:#refcount_warn_saturate | 0 | 47 | | EIP:refcount_warn_saturate | 0 | 48 | | addition_on#;use-after-free | 0 | 46 | | saturated;leaking_memory | 0 | 44 | | BUG:kernel_NULL_pointer_dereference,address | 0 | 31 | | Oops | 0 | 41 | | EIP:keyctl_read_key | 0 | 27 | | Kernel_panic-not_syncing:Fatal_exception | 0 | 36 | | BUG:unable_to_handle_page_fault_for_address | 0 | 10 | | EIP:key_put | 0 | 1 | | Kernel_panic-not_syncing:Fatal_exception_in_interrupt | 0 | 5 | | EIP:kmem_cache_alloc_noprof | 0 | 2 | | BUG:Bad_rss-counter_state_mm:#type:MM_SWAPENTS_val | 0 | 1 | | EIP:keyctl_describe_key | 0 | 1 | | EIP:keyring_gc_check_iterator | 0 | 1 | | EIP:dst_destroy | 0 | 3 | | EIP:_raw_spin_unlock_irqrestore | 0 | 1 | | EIP:put_pid | 0 | 4 | | EIP:rb_erase | 0 | 1 | | EIP:kernel_init_pages | 0 | 1 | | EIP:lookup_user_key | 0 | 1 | | EIP:strlen | 0 | 1 | | INFO:task_blocked_for_more_than#seconds | 0 | 1 | | BUG:kernel_hang_in_test_stage | 0 | 1 | +-------------------------------------------------------------------------+-----------+------------+ If you fix the issue in a separate patch/commit (i.e. not just a new version of the same patch/commit), kindly add following tags | Reported-by: kernel test robot | Closes: https://lore.kernel.org/oe-lkp/202505091721.245cbe78-lkp@intel.com [ 8.510562][ T60] ------------[ cut here ]------------ [ 8.511283][ T60] refcount_t: underflow; use-after-free. [ 8.511950][ T60] WARNING: CPU: 0 PID: 60 at lib/refcount.c:28 refcount_warn_saturate (kbuild/obj/consumer/i386-randconfig-014-20250509/lib/refcount.c:28 (discriminator 3)) [ 8.512948][ T60] Modules linked in: [ 8.513488][ T60] CPU: 0 UID: 0 PID: 60 Comm: kworker/0:2 Not tainted 6.15.0-rc5-00001-ga78cdfa4388a #1 PREEMPT 231a29fdcec5e4259d3c91818150ae4baf2b3615 [ 8.514973][ T60] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.16.2-debian-1.16.2-1 04/01/2014 [ 8.516145][ T60] Workqueue: events key_garbage_collector [ 8.516849][ T60] EIP: refcount_warn_saturate (kbuild/obj/consumer/i386-randconfig-014-20250509/lib/refcount.c:28 (discriminator 3)) [ 8.517490][ T60] Code: fa c2 82 01 68 28 15 60 82 e8 e3 88 72 ff 0f 0b 58 c9 c3 8d b6 00 00 00 00 c6 05 2e fa c2 82 01 68 d0 14 60 82 e8 c7 88 72 ff <0f> 0b 59 c9 c3 66 90 89 c2 8b 00 3d 00 00 00 c0 74 12 83 f8 01 74 All code ======== 0: fa cli 1: c2 82 01 ret $0x182 4: 68 28 15 60 82 push $0xffffffff82601528 9: e8 e3 88 72 ff call 0xffffffffff7288f1 e: 0f 0b ud2 10: 58 pop %rax 11: c9 leave 12: c3 ret 13: 8d b6 00 00 00 00 lea 0x0(%rsi),%esi 19: c6 05 2e fa c2 82 01 movb $0x1,-0x7d3d05d2(%rip) # 0xffffffff82c2fa4e 20: 68 d0 14 60 82 push $0xffffffff826014d0 25: e8 c7 88 72 ff call 0xffffffffff7288f1 2a:* 0f 0b ud2 <-- trapping instruction 2c: 59 pop %rcx 2d: c9 leave 2e: c3 ret 2f: 66 90 xchg %ax,%ax 31: 89 c2 mov %eax,%edx 33: 8b 00 mov (%rax),%eax 35: 3d 00 00 00 c0 cmp $0xc0000000,%eax 3a: 74 12 je 0x4e 3c: 83 f8 01 cmp $0x1,%eax 3f: 74 .byte 0x74 Code starting with the faulting instruction =========================================== 0: 0f 0b ud2 2: 59 pop %rcx 3: c9 leave 4: c3 ret 5: 66 90 xchg %ax,%ax 7: 89 c2 mov %eax,%edx 9: 8b 00 mov (%rax),%eax b: 3d 00 00 00 c0 cmp $0xc0000000,%eax 10: 74 12 je 0x24 12: 83 f8 01 cmp $0x1,%eax 15: 74 .byte 0x74 [ 8.519470][ T60] EAX: 00000026 EBX: 85c8c9c0 ECX: 0000025c EDX: 00000000 [ 8.520241][ T60] ESI: 85d4ede0 EDI: 821a0f00 EBP: 8405fe6c ESP: 8405fe68 [ 8.521168][ T60] DS: 007b ES: 007b FS: 00d8 GS: 0000 SS: 0068 EFLAGS: 00010286 [ 8.522055][ T60] CR0: 80050033 CR2: 77ecb6a1 CR3: 040b8000 CR4: 000406f0 [ 8.522824][ T60] DR0: 00000000 DR1: 00000000 DR2: 00000000 DR3: 00000000 [ 8.523614][ T60] DR6: fffe0ff0 DR7: 00000400 [ 8.524161][ T60] Call Trace: [ 8.524619][ T60] key_put (kbuild/obj/consumer/i386-randconfig-014-20250509/include/linux/refcount.h:400 kbuild/obj/consumer/i386-randconfig-014-20250509/include/linux/refcount.h:432 kbuild/obj/consumer/i386-randconfig-014-20250509/include/linux/refcount.h:450 kbuild/obj/consumer/i386-randconfig-014-20250509/security/keys/key.c:652) [ 8.525119][ T60] keyring_free_object (kbuild/obj/consumer/i386-randconfig-014-20250509/security/keys/keyring.c:390) [ 8.525736][ T60] assoc_array_destroy_subtree+0x7b/0x17c [ 8.526446][ T60] assoc_array_destroy (kbuild/obj/consumer/i386-randconfig-014-20250509/lib/assoc_array.c:445) [ 8.527048][ T60] keyring_destroy (kbuild/obj/consumer/i386-randconfig-014-20250509/security/keys/keyring.c:432) [ 8.527617][ T60] key_gc_unused_keys+0xfb/0x134 [ 8.528301][ T60] key_garbage_collector (kbuild/obj/consumer/i386-randconfig-014-20250509/security/keys/gc.c:305) [ 8.528967][ T60] process_one_work (kbuild/obj/consumer/i386-randconfig-014-20250509/kernel/workqueue.c:3243) [ 8.529586][ T60] worker_thread (kbuild/obj/consumer/i386-randconfig-014-20250509/kernel/workqueue.c:3313 kbuild/obj/consumer/i386-randconfig-014-20250509/kernel/workqueue.c:3400) [ 8.530157][ T60] kthread (kbuild/obj/consumer/i386-randconfig-014-20250509/kernel/kthread.c:464) [ 8.530681][ T60] ? rescuer_thread (kbuild/obj/consumer/i386-randconfig-014-20250509/kernel/workqueue.c:3346) [ 8.531244][ T60] ? kthread_fetch_affinity+0x34/0x34 [ 8.531930][ T60] ret_from_fork (kbuild/obj/consumer/i386-randconfig-014-20250509/arch/x86/kernel/process.c:159) [ 8.532498][ T60] ? kthread_fetch_affinity+0x34/0x34 [ 8.533164][ T60] ret_from_fork_asm (kbuild/obj/consumer/i386-randconfig-014-20250509/arch/x86/entry/entry_32.S:737) [ 8.533766][ T60] entry_INT80_32 (kbuild/obj/consumer/i386-randconfig-014-20250509/arch/x86/entry/entry_32.S:945) [ 8.534333][ T60] irq event stamp: 3905 [ 8.534868][ T60] hardirqs last enabled at (3917): __up_console_sem (kbuild/obj/consumer/i386-randconfig-014-20250509/arch/x86/include/asm/irqflags.h:42 (discriminator 1) kbuild/obj/consumer/i386-randconfig-014-20250509/arch/x86/include/asm/irqflags.h:119 (discriminator 1) kbuild/obj/consumer/i386-randconfig-014-20250509/arch/x86/include/asm/irqflags.h:159 (discriminator 1) kbuild/obj/consumer/i386-randconfig-014-20250509/kernel/printk/printk.c:344 (discriminator 1)) [ 8.535880][ T60] hardirqs last disabled at (3928): __up_console_sem (kbuild/obj/consumer/i386-randconfig-014-20250509/kernel/printk/printk.c:342 (discriminator 1)) [ 8.535891][ T60] softirqs last enabled at (3856): handle_softirqs (kbuild/obj/consumer/i386-randconfig-014-20250509/kernel/softirq.c:426 kbuild/obj/consumer/i386-randconfig-014-20250509/kernel/softirq.c:607) [ 8.535896][ T60] softirqs last disabled at (3851): __do_softirq (kbuild/obj/consumer/i386-randconfig-014-20250509/kernel/softirq.c:614) [ 8.535904][ T60] ---[ end trace 0000000000000000 ]--- The kernel config and materials to reproduce are available at: https://download.01.org/0day-ci/archive/20250509/202505091721.245cbe78-lkp@intel.com -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki