From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mx0b-00069f02.pphosted.com (mx0b-00069f02.pphosted.com [205.220.177.32]) (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 484541991BD; Wed, 2 Oct 2024 23:53:16 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=fail smtp.client-ip=205.220.177.32 ARC-Seal:i=2; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1727913198; cv=fail; b=EVr6KYySIIUd0VNJxZNN4YF8Wpw7Q+kIUUw0GKeD/9oCQ3fgqxgFMMsdNLiJIxYtRhd+WYxDFWIrGu63TNkpZJOpW1Wa4BBjrvplIBd6gKcqLOLDclTAPc9abhRYO3HSS/qoc9XqbTCuisEGHmy2H2Tmd0ryqsb4CGjM2PCvku0= ARC-Message-Signature:i=2; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1727913198; c=relaxed/simple; bh=CfvD+aMTqZnDxnmr8RS8e8SOnDZcmfDFeHmjYliiNTA=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: Content-Type:MIME-Version; b=HlDAf0xTAR7/FoFp5AbH0r9RZsQ2u1v+rwZnXkc1mGe/T9Qc/9pCEoOp68Y00AcbYSWojHfmMyuJsKiyc4/C7sUZDGUKX2cSy8LOyBO8KZbYa+3K3++egfOuQpP30C5pq7dkI/3pYbYulLHwCawDkuiog5eMd8MN3xR+yX50Hi4= ARC-Authentication-Results:i=2; smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=oracle.com; spf=pass smtp.mailfrom=oracle.com; dkim=pass (2048-bit key) header.d=oracle.com header.i=@oracle.com header.b=YXJ5R6fz; dkim=pass (1024-bit key) header.d=oracle.onmicrosoft.com header.i=@oracle.onmicrosoft.com header.b=TiGQZsT+; arc=fail smtp.client-ip=205.220.177.32 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=oracle.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=oracle.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=oracle.com header.i=@oracle.com header.b="YXJ5R6fz"; dkim=pass (1024-bit key) header.d=oracle.onmicrosoft.com header.i=@oracle.onmicrosoft.com header.b="TiGQZsT+" Received: from pps.filterd (m0246632.ppops.net [127.0.0.1]) by mx0b-00069f02.pphosted.com (8.18.1.2/8.18.1.2) with ESMTP id 492MfaSD027749; Wed, 2 Oct 2024 23:53:08 GMT DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=oracle.com; h= from:to:cc:subject:date:message-id:in-reply-to:references :content-transfer-encoding:content-type:mime-version; s= corp-2023-11-20; bh=3K5LOgwm4TNCgRqXXYTFNxJXmqOneN/pDF5TZoOIawk=; b= YXJ5R6fz2RFc6or/IuECJs7qdb9q0nhgmThC74Eh/P9eqa+l9BaW/dYkXzXnLEyy mn3PMizWhg+q9YHuSvp7/8czvNI/e1kllKalFsOe8+NjWXBfCkLe07ZW8W/d3sci 8AT8eNoiMzwkVB6RIULAEZLJZtKvqKxA4iT5rJYKPbJrLQkgbvwzzDoGSl4Q3qiV BbGf2tJiO9xUVNxOhnhWZE/xAKg3T5KGBrY5YCvEKTyssRNpQVYXSrV+X/Sis2Ky ceWhKl+O1WcmkVxB/pSuzHn8U0rofZcag1EkFrY64P/+I92vcOXdgi/BpguuH1jl J/WqdaCqyfKDnf4ykV6yRA== Received: from phxpaimrmta01.imrmtpd1.prodappphxaev1.oraclevcn.com (phxpaimrmta01.appoci.oracle.com [138.1.114.2]) by mx0b-00069f02.pphosted.com (PPS) with ESMTPS id 41x9dt2xg1-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Wed, 02 Oct 2024 23:53:08 +0000 (GMT) Received: from pps.filterd (phxpaimrmta01.imrmtpd1.prodappphxaev1.oraclevcn.com [127.0.0.1]) by phxpaimrmta01.imrmtpd1.prodappphxaev1.oraclevcn.com (8.18.1.2/8.18.1.2) with ESMTP id 492MMtEb017377; Wed, 2 Oct 2024 23:53:06 GMT Received: from nam11-co1-obe.outbound.protection.outlook.com (mail-co1nam11lp2171.outbound.protection.outlook.com [104.47.56.171]) by phxpaimrmta01.imrmtpd1.prodappphxaev1.oraclevcn.com (PPS) with ESMTPS id 41x889g638-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Wed, 02 Oct 2024 23:53:06 +0000 ARC-Seal: i=1; a=rsa-sha256; s=arcselector10001; d=microsoft.com; cv=none; b=VK1vQZN1IwZGf/Dgi6wXRErPRF8ZN5OKB8KT/VkcDmojTNjpIgaTSbiGsWFkOisJYDnJC03x+EAkV1ZDlK+Rm+6ioYGOYlBzQMcBppu6b+zP0hxm5KTFzUGgBwacnyHI97zP7yQ+QGIWhOeClZzWKn07q1wwjdv5QJMw7zLWgHPuAmoJfA2RJpDfXZBB3NkKs3dt2cam3yAIkNq5M4RPKOZvvzifbDrD+dtGXe2Qk9WyynjpUazSj/hSaSfZy9IvrpE+Eg7yrkWXb/c8ltxJ3d38qJEgfZbCWRSFdYiCqTWHVGIxa4aUl7I6VDTOmstAZ6fW151KUvZy9AoF8SQUhg== 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=3K5LOgwm4TNCgRqXXYTFNxJXmqOneN/pDF5TZoOIawk=; b=mJ/6Wzya3gN9Ga3qtNWjEW8UNNfF00/s/fEh1ahUqF4QTPad51Lq5MH8tMhYQ+VGCLig7cj++ptwBJdoi5Y1J11cHr3Bgv6mXI/lXOJ9qv8XT2lNMh1TKfRrgivE+R7m7BG4TvB4UR31Hxjgab2KyxLFbJarUiYeERKaZmTGpw0GEFYf3efxUExsxuUHe3U9U/etiX3fgLHb/APcc8PysIOQ8j/zTnKYL/KH286i2blRTXJcYsarkWYEVM36IoQayIAbYJqqVkilQoUeJh+fFNdnszTbKzHPCHmxtqNMPCUwggSmurZf87PMO2TnBBHaZCBcIwuGYnZSAKatONcF+Q== ARC-Authentication-Results: i=1; mx.microsoft.com 1; spf=pass smtp.mailfrom=oracle.com; dmarc=pass action=none header.from=oracle.com; dkim=pass header.d=oracle.com; arc=none DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=oracle.onmicrosoft.com; s=selector2-oracle-onmicrosoft-com; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-SenderADCheck; bh=3K5LOgwm4TNCgRqXXYTFNxJXmqOneN/pDF5TZoOIawk=; b=TiGQZsT+tDzY8DHPQKROVFPZzIUjktFCpgFqkzlA6wEZpfBz50t5nyyn86XIVnzna2RxjFemQpe88qC5hDLawSJ8Ad97c6h7+fjpkyX29oGLg0gTqq6bDaAzoclhWXg1vCu9H1JPscnWto5HUIkOHt3lEifWRGmoT7mrTBj6wi8= Received: from PH8PR10MB6597.namprd10.prod.outlook.com (2603:10b6:510:226::20) by SA2PR10MB4458.namprd10.prod.outlook.com (2603:10b6:806:f8::24) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.8026.16; Wed, 2 Oct 2024 23:53:04 +0000 Received: from PH8PR10MB6597.namprd10.prod.outlook.com ([fe80::6874:4af6:bf0a:6ca]) by PH8PR10MB6597.namprd10.prod.outlook.com ([fe80::6874:4af6:bf0a:6ca%3]) with mapi id 15.20.8026.016; Wed, 2 Oct 2024 23:53:04 +0000 From: Stephen Brennan To: Arnaldo Carvalho de Melo Cc: bpf@vger.kernel.org, dwarves@vger.kernel.org, linux-debuggers@vger.kernel.org, Stephen Brennan , Alan Maguire Subject: [PATCH dwarves v3 3/5] btf_encoder: explicitly check addr/size for u32 overflow Date: Wed, 2 Oct 2024 16:52:45 -0700 Message-ID: <20241002235253.487251-4-stephen.s.brennan@oracle.com> X-Mailer: git-send-email 2.43.5 In-Reply-To: <20241002235253.487251-1-stephen.s.brennan@oracle.com> References: <20241002235253.487251-1-stephen.s.brennan@oracle.com> Content-Transfer-Encoding: 8bit Content-Type: text/plain X-ClientProxiedBy: BN8PR16CA0016.namprd16.prod.outlook.com (2603:10b6:408:4c::29) To PH8PR10MB6597.namprd10.prod.outlook.com (2603:10b6:510:226::20) Precedence: bulk X-Mailing-List: linux-debuggers@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: PH8PR10MB6597:EE_|SA2PR10MB4458:EE_ X-MS-Office365-Filtering-Correlation-Id: 76bbe1aa-cc96-4be3-f124-08dce33d5b70 X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0;ARA:13230040|1800799024|10070799003|376014|366016; X-Microsoft-Antispam-Message-Info: =?us-ascii?Q?Bc0RfEM/XIDWEPzH0kxR3nYsysgFfju3sNBESRA1RgZR69Cu/+oChEMxacBe?= =?us-ascii?Q?Q5Eq55eS52KQTH0s68njpAxS+6geARMDRRoFTFzmwGkWYyzxPt2rli/ehJbH?= =?us-ascii?Q?WVDUuLOyE6jvD4hRJpkbuMtgk+oud/OFOiJb1lAXPLmFVRpizUKjQ5SfTtuu?= =?us-ascii?Q?8qqCbLgQZIMylHesxPzhHttspv53yHQb+ZGJ055OIvpagSAyQIvwjBodUMdw?= =?us-ascii?Q?f7hWlR+tUM++D0FGq08suFzQ1hCKUpsoJ+HQf7fQOniv3FbaynxhcwpKK+Mw?= =?us-ascii?Q?X9DC6jakNKEem208e5ftWMO84PP8kmVEqIjxqqjCenFqRah4vENOrtVfHAOg?= =?us-ascii?Q?3c7nKiWVpSa2D2H7PvVMyweDmXGgQc5HWu5tuC35XKXbe8H9M/D1hwygnwJ+?= =?us-ascii?Q?TwYJV/v/u4MLIYAuFZJScq8rwevpltqhEMv8FB1jWf57qVi8hkcxUpAQvrKi?= =?us-ascii?Q?/0+R7ZSr/Th9BZQJkwIjSHZihBalh5QxRbppIJvYCsLUzeVOhiC/H1pOzcEF?= =?us-ascii?Q?bTfummyFoIy/E6Dq/7nDdjb0r8uYe5ZiE2Xbhirb4wfwRbQwpC3WlTnAGt9w?= =?us-ascii?Q?yAg5G/cfbHwisZOJWJ+CC/HbrS+i2oGNY02MDPULZDE0X+nwXrgMLP0Lwifm?= =?us-ascii?Q?goj02Zqck8c50xGjq3h79sCLtrj6sEI5Czg7DGPm1CJ6KfgnJNT8T0smATUN?= =?us-ascii?Q?8hFFCqGckyeLCkgq+AUL4VxQF9aAtC/CsoQzNtp7MKytumGIbv7cU8JD4Ufh?= =?us-ascii?Q?A7gAoap1OpDuvf/o/jg3qYJ9jZETR38N2TdZB/MmzBa9AeJWHmYndBPBhdi+?= =?us-ascii?Q?jJUMK/6rKcaGYQKaTEn9xAO/9pLLEJzBeX3aatu7+QfHWQyoVWLGhQ80G1SZ?= =?us-ascii?Q?8dawiQgPs6TezRPMFf9E9NpyyC7Qi13obrHQIvh7URBrL3DEUpPJGWzQxRd8?= =?us-ascii?Q?Qji186O26jfKvDAyYilA9P3S84JXWq+bs5Ol0Cn/QsxzH/8baOJe0o1nNYJM?= =?us-ascii?Q?gmbfam2mAaTZjjqVQ87tzFd2P2LxgLkBYWXq5gVt4insAufnhLRG6tb8azF7?= =?us-ascii?Q?OE4zV0TIFazqvGwq3DtJSxJ5LTlidchYHq7HiNbLe2mEr34C3nXXES4Oj3Zk?= =?us-ascii?Q?kMLsV9ncsrODbgN1B1+/LjAJA7L+fTPY/E+bUIvl0jS/dIvl2SS7A0i8BJuQ?= =?us-ascii?Q?tocymf+4lsI+cx8gb/PCuNas1kIei7ScPSo9T8Hp1bZ6qIbe/R6a7GbB4iec?= =?us-ascii?Q?8/AdpK2TQrjl9LjQRi1HjIetMELNpOdn59GTs1icRg=3D=3D?= X-Forefront-Antispam-Report: CIP:255.255.255.255;CTRY:;LANG:en;SCL:1;SRV:;IPV:NLI;SFV:NSPM;H:PH8PR10MB6597.namprd10.prod.outlook.com;PTR:;CAT:NONE;SFS:(13230040)(1800799024)(10070799003)(376014)(366016);DIR:OUT;SFP:1101; X-MS-Exchange-AntiSpam-MessageData-ChunkCount: 1 X-MS-Exchange-AntiSpam-MessageData-0: =?us-ascii?Q?BEiVGpsau8f3wBe2mZ+IjivMIJvJZdvvr2Lr1WVHtOOB5m6UpLK8fGVUAylw?= =?us-ascii?Q?JYJUpLJGSZ+ApVrtK1kSDL5Krh+wjpx+Vpn07mcrEgYwlig0XxsXAMWrZT9L?= =?us-ascii?Q?S9ZkHopCg9oUHReLsev7yRhfDYj4xXJkOm/qzuEmSU/a2HII6vNqM1SeXuKW?= =?us-ascii?Q?52uImSFcJ73izNW/+pxwpuBsaw/6qvYbqVkTmMpMox+GExk3QQ2lxFlgoZ+4?= =?us-ascii?Q?QMzCBzH+Rl5jvR2AAdQbiIiugPHpruXXcgRPvYQsCM7MagCtu5qX+chJUKJz?= =?us-ascii?Q?pg0yQgJSJrXrVn8Gk+17mU1bOr4qhiG/Nn6S8j9nGQju4VcqgNNHq8Fp8RVO?= =?us-ascii?Q?XIv2tAq/1qJwGLy2IcTDQlzDUSRZ1zqC2cl3ungMTU1v6ANW6RfJg1Pt/Fa4?= =?us-ascii?Q?FhYqjZJcnbLWmtCrlxOEPG+44xigy5SQv6cHd14Qg1yynZwxgi5fuupJGi4y?= =?us-ascii?Q?iuvwWN246NkqJXwYgftLdYuBnT1rPgKI+pqQ73KFs1wGhp+G3HaNgSB1cL/j?= =?us-ascii?Q?Yh2m1IVSP3DJfXVkT7NcOI1gTrxVj3ZRgsyRWTaAe+AP8rGd/dRaGB61eEA+?= =?us-ascii?Q?I26tGFezMiXGQRDNwLDEGLBwzyMKmqakQhM2OoMmGY3w/vNliJtZ+f3+s1Gm?= =?us-ascii?Q?N6PPickEjhPrENNiuu9F+pGNmS71wcH93vLH4uzWOAzLZkzwLdDoOqrOKxGA?= =?us-ascii?Q?cIRo0w8qNnGTr7QptTHrMps/v0A3NDkLLOyB6GSa5APwt6UkVOl573Z02Wf2?= =?us-ascii?Q?+GL6SWCedP92fY98dOWX+vi5vAtR/Ar0BkRK5iaPfNWh5VrHSAXyj16am5nM?= =?us-ascii?Q?LM7WIBgY/WFWsqa+Duev0Qaow2G9E7W93d/ebDv2Gt8UYhY9dZzhjaA9NZOA?= =?us-ascii?Q?xJI3t7bd2YTFiOqm05UIlk0/qcQHwKQ+MDmZLQoAgNgviEnrgLmtfxHJRvxj?= =?us-ascii?Q?iKya111wIv8ZQLINOMAM/uJm0DsC1ZaMKnIxzBoV+yfXtzB46KhuwhoZrNmA?= =?us-ascii?Q?5Bw8sERmMnNO9p0r9ne5KoLPJ+3ephASzkur2wBGnzLJQ2knwVZ+NCUE4vQN?= =?us-ascii?Q?JwMYoi5RE1VmI+dMgD0SnVWqoIAOCDNrx66dAmWfsh7fCPcnEXyJjtJXzBIw?= =?us-ascii?Q?jc8bT1bYasHgaA3xr0/R9d+XFn8nkyPzUK7+tObqt6yABSltkojzy1Qjxja6?= =?us-ascii?Q?dqM0cQ/5fz/qjHto6sQ1jp8Z+eTkfdt400w6EiIBou8i+L3bc0Lo4FZppPgC?= =?us-ascii?Q?AwK53O7xTN6OX0B5OSAuQ9ah13sak1uROpLCUMNG46dyNnu1pJYXy8QfKyKp?= =?us-ascii?Q?TY3sGA49Q1FizY2c+kmlNz6t04DrXcGkrwDxVY5krPvHEFzyxmbPvmqovLNr?= =?us-ascii?Q?tab7U13Joh+Ie57OvQ66j/KtVaZ+ozR2QuCe6TH9gCgkz65MlZT1ivAYetO2?= =?us-ascii?Q?0HtpWiZHHwWrVQFu/AXYJEJFUhcrtB+3D7a3UDTTocdosYQIont7nXTIfyjL?= =?us-ascii?Q?9+9V575QqEAW0kxY3ZW2EDuO2/3+GS69WYRYVvRd5bCgCCkKXfKcrJLqjLCP?= =?us-ascii?Q?lsA1ghRPrybQCIX+RVHx7jbsgXf3Lr46sJxB8LdZqXq5NIzTDeoTLb4eqMoh?= =?us-ascii?Q?2avNH1xm33HvqyCT0DkRvY4=3D?= X-MS-Exchange-AntiSpam-ExternalHop-MessageData-ChunkCount: 1 X-MS-Exchange-AntiSpam-ExternalHop-MessageData-0: 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 X-OriginatorOrg: oracle.com X-MS-Exchange-CrossTenant-Network-Message-Id: 76bbe1aa-cc96-4be3-f124-08dce33d5b70 X-MS-Exchange-CrossTenant-AuthSource: PH8PR10MB6597.namprd10.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Internal X-MS-Exchange-CrossTenant-OriginalArrivalTime: 02 Oct 2024 23:53:04.7882 (UTC) X-MS-Exchange-CrossTenant-FromEntityHeader: Hosted X-MS-Exchange-CrossTenant-Id: 4e2c6054-71cb-48f1-bd6c-3a9705aca71b X-MS-Exchange-CrossTenant-MailboxType: HOSTED X-MS-Exchange-CrossTenant-UserPrincipalName: HLqWpYriTE3byQi965XdqvSFktkQmTYo/7MAQL5uPePfGz6SDp5njSFOZDy5OByWb+3950NFXI8K0SySLEWAan3qBIAoL7Ot85lKHFz/o00= X-MS-Exchange-Transport-CrossTenantHeadersStamped: SA2PR10MB4458 X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1051,Hydra:6.0.680,FMLib:17.12.62.30 definitions=2024-10-02_21,2024-09-30_01,2024-09-30_01 X-Proofpoint-Spam-Details: rule=notspam policy=default score=0 phishscore=0 spamscore=0 suspectscore=0 bulkscore=0 malwarescore=0 mlxscore=0 mlxlogscore=999 adultscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2408220000 definitions=main-2410020169 X-Proofpoint-GUID: -nzxc_7L1cF7bOvmJQWTs0cqMuxSIzV5 X-Proofpoint-ORIG-GUID: -nzxc_7L1cF7bOvmJQWTs0cqMuxSIzV5 The addr is a uint64_t, and depending on the size of a data section, there's no guarantee that it fits into a uint32_t, even after subtracting out the section start address. Similarly, the variable size is a size_t which could exceed a uint32_t. Check both for overflow, and if found, skip the variable with an error message. Use explicit casts when we cast to uint32_t so it's plain to see that this is happening. Signed-off-by: Stephen Brennan --- btf_encoder.c | 13 ++++++++++--- 1 file changed, 10 insertions(+), 3 deletions(-) diff --git a/btf_encoder.c b/btf_encoder.c index 31a418a..1872e00 100644 --- a/btf_encoder.c +++ b/btf_encoder.c @@ -2250,9 +2250,16 @@ static int btf_encoder__encode_cu_variables(struct btf_encoder *encoder) tag = cu__type(cu, var->ip.tag.type); size = tag__size(tag, cu); - if (size == 0) { + if (size == 0 || size > UINT32_MAX) { if (encoder->verbose) - fprintf(stderr, "Ignoring zero-sized per-CPU variable '%s'...\n", name); + fprintf(stderr, "Ignoring %s-sized per-CPU variable '%s'...\n", + size == 0 ? "zero" : "over", name); + continue; + } + if (addr > UINT32_MAX) { + if (encoder->verbose) + fprintf(stderr, "Ignoring variable '%s' - its offset %zu doesn't fit in a u32\n", + name, addr); continue; } @@ -2285,7 +2292,7 @@ static int btf_encoder__encode_cu_variables(struct btf_encoder *encoder) * add a BTF_VAR_SECINFO in encoder->percpu_secinfo, which will be added into * encoder->types later when we add BTF_VAR_DATASEC. */ - id = btf_encoder__add_var_secinfo(encoder, id, addr, size); + id = btf_encoder__add_var_secinfo(encoder, id, (uint32_t)addr, (uint32_t)size); if (id < 0) { fprintf(stderr, "error: failed to encode section info for variable '%s' at addr 0x%" PRIx64 "\n", name, addr); -- 2.43.5