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Tsirkin" , Lin Ma , "Jason Wang" , Xuan Zhuo , "Parav Pandit" CC: , , Subject: [PATCH 1/4] vdpa: Add features attr to vdpa_nl_policy for nlattr length check Date: Thu, 27 Jul 2023 20:57:48 +0300 Message-ID: <20230727175757.73988-3-dtatulea@nvidia.com> X-Mailer: git-send-email 2.41.0 In-Reply-To: <20230727175757.73988-1-dtatulea@nvidia.com> References: <20230727175757.73988-1-dtatulea@nvidia.com> MIME-Version: 1.0 X-NV-OnPremToCloud: ExternallySecured X-EOPAttributedMessage: 0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: DM6NAM11FT047:EE_|MW4PR12MB6706:EE_ X-MS-Office365-Filtering-Correlation-Id: c16c23f6-8353-4d50-363f-08db8ecb1456 X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0; X-Microsoft-Antispam-Message-Info: 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 X-Forefront-Antispam-Report: CIP:216.228.118.232;CTRY:US;LANG:en;SCL:1;SRV:;IPV:NLI;SFV:NSPM;H:mail.nvidia.com;PTR:dc7edge1.nvidia.com;CAT:NONE;SFS:(13230028)(4636009)(346002)(376002)(39860400002)(136003)(396003)(82310400008)(451199021)(46966006)(40470700004)(36840700001)(86362001)(41300700001)(2906002)(316002)(5660300002)(8936002)(8676002)(36756003)(40480700001)(40460700003)(1076003)(26005)(478600001)(7636003)(82740400003)(356005)(6666004)(47076005)(83380400001)(36860700001)(186003)(336012)(426003)(2616005)(4326008)(6636002)(70206006)(54906003)(110136005)(70586007);DIR:OUT;SFP:1101; X-OriginatorOrg: Nvidia.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 27 Jul 2023 17:58:27.2350 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: c16c23f6-8353-4d50-363f-08db8ecb1456 X-MS-Exchange-CrossTenant-Id: 43083d15-7273-40c1-b7db-39efd9ccc17a X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp: TenantId=43083d15-7273-40c1-b7db-39efd9ccc17a;Ip=[216.228.118.232];Helo=[mail.nvidia.com] X-MS-Exchange-CrossTenant-AuthSource: DM6NAM11FT047.eop-nam11.prod.protection.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: MW4PR12MB6706 X-Spam-Status: No, score=-1.1 required=5.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,FORGED_SPF_HELO, RCVD_IN_DNSWL_BLOCKED,RCVD_IN_MSPIKE_H2,SPF_HELO_PASS,SPF_NONE, T_SCC_BODY_TEXT_LINE autolearn=no autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org X-getmail-retrieved-from-mailbox: INBOX X-GMAIL-THRID: 1772603164315833309 X-GMAIL-MSGID: 1772603164315833309 From: Lin Ma The vdpa_nl_policy structure is used to validate the nlattr when parsing the incoming nlmsg. It will ensure the attribute being described produces a valid nlattr pointer in info->attrs before entering into each handler in vdpa_nl_ops. That is to say, the missing part in vdpa_nl_policy may lead to illegal nlattr after parsing, which could lead to OOB read just like CVE-2023-3773. This patch adds the missing nla_policy for vdpa features attr to avoid such bugs. Fixes: 90fea5a800c3 ("vdpa: device feature provisioning") Signed-off-by: Lin Ma Cc: stable@vger.kernel.org --- drivers/vdpa/vdpa.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/vdpa/vdpa.c b/drivers/vdpa/vdpa.c index 965e32529eb8..3ad355a2208a 100644 --- a/drivers/vdpa/vdpa.c +++ b/drivers/vdpa/vdpa.c @@ -1249,6 +1249,7 @@ static const struct nla_policy vdpa_nl_policy[VDPA_ATTR_MAX + 1] = { [VDPA_ATTR_DEV_NET_CFG_MACADDR] = NLA_POLICY_ETH_ADDR, /* virtio spec 1.1 section 5.1.4.1 for valid MTU range */ [VDPA_ATTR_DEV_NET_CFG_MTU] = NLA_POLICY_MIN(NLA_U16, 68), + [VDPA_ATTR_DEV_FEATURES] = { .type = NLA_U64 }, }; static const struct genl_ops vdpa_nl_ops[] = { From patchwork Thu Jul 27 17:57:50 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Dragos Tatulea X-Patchwork-Id: 127128 Return-Path: Delivered-To: ouuuleilei@gmail.com Received: by 2002:a59:a985:0:b0:3e4:2afc:c1 with SMTP id t5csp1323788vqo; Thu, 27 Jul 2023 12:38:33 -0700 (PDT) X-Google-Smtp-Source: APBJJlEf7Ui7rRSoJ5fM23/BDH4eE+0V/eshqb8A8FOrx5KdxJhqbJ26Iy1rcSYd18aQcwZymLU6 X-Received: by 2002:a17:906:5dc1:b0:991:dc98:69ff with SMTP id p1-20020a1709065dc100b00991dc9869ffmr92615ejv.67.1690486713249; Thu, 27 Jul 2023 12:38:33 -0700 (PDT) ARC-Seal: i=2; a=rsa-sha256; t=1690486713; cv=pass; d=google.com; s=arc-20160816; b=nMucrpZtMw2bmUYaBXqlQc4aDsYUhFkeLF/+02trV2tuWkEd1bz7cLMquABZsF9u2g C+5fGGfO6dwr1hWDi3eobb55Ko7FdqV/rYkFdmvc8I1uQ11BRoUyOPntJ/NNUDWvB7jh 39R3lJTlxAR5Qd/s2LrLlwho1wN/k0cNLpanZDiUw5XXpvG5YlqcWK0mpm5mblXEvhru Q3aRDxvv1xlSexEsSZkDkbA5LhcICffk7XujBQup1lGjwQS220BhLcgKqpZDAPQdaprQ y5KtcGwIScqr6BvYQ0cEql3/3CQVwumQjMIM6gdYTJ0Oz6+In1azNhYY7PsGvT8llWXb ezxw== ARC-Message-Signature: i=2; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:content-transfer-encoding:mime-version :references:in-reply-to:message-id:date:subject:cc:to:from :dkim-signature; bh=a8UMif7Br05o4sgfEuqtA2qO+wkMcJ6NxdPG1E1yAJo=; fh=FFWu5ZHn1TIHTcapRVZJR3gUVU1ouQq0me23sgbeDPw=; b=YkHPnTh1Plsn63glUCb6NraXjacJvKsBiucxsP22lTNCPjj7KBO0wlUfVZjGe3t/NL WLjlql0i+8VBxg2+GQu1RTdZpidcjBINFMulAHmOn/2OXS1YONfN1/NHnewIdHx2XbTp d5Ni//0BPr4tKJt1CDU7WWUZXJfdw1N4S1ZMBK4FwC+VefiXsAkyHm+x3EZpmA2yR9m3 9N6bKRFLzuA5t1YN5ov4/7vasa3CIRvnk3TM9OyCknIVDEIAbGGG2PPfZ8XJumJn/p/u YDhuGY1TZzgtFenQ5oQs819yx+mrjY8dpqv7b5jO87h7g+vwRV+yy13MyxqJgbie41BE GkJw== ARC-Authentication-Results: i=2; mx.google.com; dkim=pass header.i=@Nvidia.com header.s=selector2 header.b=K4XML+kP; arc=pass (i=1 spf=pass spfdomain=nvidia.com dmarc=pass fromdomain=nvidia.com); spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=REJECT sp=REJECT dis=NONE) header.from=nvidia.com Received: from out1.vger.email (out1.vger.email. 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Tsirkin" , Lin Ma , "Jason Wang" , Xuan Zhuo , "Parav Pandit" CC: , , Subject: [PATCH 2/4] vdpa: Add queue index attr to vdpa_nl_policy for nlattr length check Date: Thu, 27 Jul 2023 20:57:50 +0300 Message-ID: <20230727175757.73988-5-dtatulea@nvidia.com> X-Mailer: git-send-email 2.41.0 In-Reply-To: <20230727175757.73988-1-dtatulea@nvidia.com> References: <20230727175757.73988-1-dtatulea@nvidia.com> MIME-Version: 1.0 X-NV-OnPremToCloud: ExternallySecured X-EOPAttributedMessage: 0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: DM6NAM11FT042:EE_|SJ1PR12MB6027:EE_ X-MS-Office365-Filtering-Correlation-Id: d9616b4d-734c-4920-5bfb-08db8ecb17d4 X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0; X-Microsoft-Antispam-Message-Info: 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 X-Forefront-Antispam-Report: CIP:216.228.118.233;CTRY:US;LANG:en;SCL:1;SRV:;IPV:NLI;SFV:NSPM;H:mail.nvidia.com;PTR:dc7edge2.nvidia.com;CAT:NONE;SFS:(13230028)(4636009)(39860400002)(346002)(376002)(396003)(136003)(451199021)(82310400008)(46966006)(36840700001)(40470700004)(47076005)(478600001)(110136005)(54906003)(86362001)(70586007)(6636002)(4326008)(1076003)(316002)(70206006)(356005)(7636003)(40480700001)(186003)(6666004)(8676002)(336012)(26005)(82740400003)(40460700003)(8936002)(2906002)(426003)(41300700001)(5660300002)(2616005)(36756003)(83380400001)(36860700001);DIR:OUT;SFP:1101; X-OriginatorOrg: Nvidia.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 27 Jul 2023 17:58:33.0949 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: d9616b4d-734c-4920-5bfb-08db8ecb17d4 X-MS-Exchange-CrossTenant-Id: 43083d15-7273-40c1-b7db-39efd9ccc17a X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp: TenantId=43083d15-7273-40c1-b7db-39efd9ccc17a;Ip=[216.228.118.233];Helo=[mail.nvidia.com] X-MS-Exchange-CrossTenant-AuthSource: DM6NAM11FT042.eop-nam11.prod.protection.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: SJ1PR12MB6027 X-Spam-Status: No, score=-1.1 required=5.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,FORGED_SPF_HELO, RCVD_IN_DNSWL_BLOCKED,RCVD_IN_MSPIKE_H2,SPF_HELO_PASS,SPF_NONE, T_SCC_BODY_TEXT_LINE autolearn=no autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org X-getmail-retrieved-from-mailbox: INBOX X-GMAIL-THRID: 1772603795608879393 X-GMAIL-MSGID: 1772603795608879393 From: Lin Ma The vdpa_nl_policy structure is used to validate the nlattr when parsing the incoming nlmsg. It will ensure the attribute being described produces a valid nlattr pointer in info->attrs before entering into each handler in vdpa_nl_ops. That is to say, the missing part in vdpa_nl_policy may lead to illegal nlattr after parsing, which could lead to OOB read just like CVE-2023-3773. This patch adds the missing nla_policy for vdpa queue index attr to avoid such bugs. Fixes: 13b00b135665 ("vdpa: Add support for querying vendor statistics") Signed-off-by: Lin Ma Cc: stable@vger.kernelorg --- drivers/vdpa/vdpa.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/vdpa/vdpa.c b/drivers/vdpa/vdpa.c index 3ad355a2208a..75f1df2b9d2a 100644 --- a/drivers/vdpa/vdpa.c +++ b/drivers/vdpa/vdpa.c @@ -1249,6 +1249,7 @@ static const struct nla_policy vdpa_nl_policy[VDPA_ATTR_MAX + 1] = { [VDPA_ATTR_DEV_NET_CFG_MACADDR] = NLA_POLICY_ETH_ADDR, /* virtio spec 1.1 section 5.1.4.1 for valid MTU range */ [VDPA_ATTR_DEV_NET_CFG_MTU] = NLA_POLICY_MIN(NLA_U16, 68), + [VDPA_ATTR_DEV_QUEUE_INDEX] = { .type = NLA_U32 }, [VDPA_ATTR_DEV_FEATURES] = { .type = NLA_U64 }, }; From patchwork Thu Jul 27 17:57:52 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Dragos Tatulea X-Patchwork-Id: 127104 Return-Path: Delivered-To: ouuuleilei@gmail.com Received: by 2002:a59:a985:0:b0:3e4:2afc:c1 with SMTP id t5csp1283002vqo; Thu, 27 Jul 2023 11:20:53 -0700 (PDT) X-Google-Smtp-Source: APBJJlE40bE1jPzeP5QFy1sz6JdMFdW2VmrAw15KD5W3GxzuyGvaihCvIxDE43e96rtB6+JiuBGh X-Received: by 2002:a05:6a20:7d8e:b0:133:be9d:a8d3 with SMTP id v14-20020a056a207d8e00b00133be9da8d3mr5890912pzj.14.1690482053441; Thu, 27 Jul 2023 11:20:53 -0700 (PDT) ARC-Seal: i=2; a=rsa-sha256; t=1690482053; cv=pass; d=google.com; s=arc-20160816; b=Lo6L7Q3qD2u8zMUKxlGBsbDBu/tuT8SgAQkHwcs6AAetYZASMHQTf6Y4pLX1Sn8K2O imQpnIm7Ec2sG8TRn3iv1Y/rXgR6tBNeHuYhYhe5ibr3Y3UkfNIqj4Us9AG+DiDyh2C6 du9Npx2v/SwSHRevq7A4eBw8yNjLGgCMMej5wBjFIs/xhzGbr+IQUct9MRbG8jAeAqqY WC8D8c2FcqyLlxIuwuneTbQpb3vaRznaCpuJnSyGgHCfXE6M17AhjkUTnbGUbYO8+KS8 GPBFER8VStBO8mTvxXOJ8rMSwG3QBW+AGKqIcVCM3dDEKU4Qn6+EdDx9xAAkVzsCx+0V slDg== ARC-Message-Signature: i=2; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:content-transfer-encoding:mime-version :references:in-reply-to:message-id:date:subject:cc:to:from :dkim-signature; bh=X/3tFs4v94Tz6IrklufFaCOyoSSG3RlgQP34HXOjVRQ=; fh=GNYyE6jT8FQgwSYDu/HgoA/cymnDBTOIMco9nqCIcCs=; b=JD6kABjOu4KBagxy7UIYVdyRWXDG4hNGwC+rpMhYMJT2LNk4qiG7pIl4YJkHdtb5d4 XENYwI2lQPzj3Xcepk6om8dGyS0K/5eezt1kfO+V8xcrYTzHkOj0sJBVidb/6dVL4sai TUUm5M9vibA/sopdEl94rvArWHHxeVOjXfkFy8bTVQ94yyJLxiVy5K/7RbQGOD+q2/Vp TaArccQhgLNxJTx0DtyTknmMf4+WENnopZa4jOALCM+YuGCAHJtldF3zPc9W+maIsWZC fLnd4Or0x+ROul7dKkTpL4H7Gh1ITomItBmIeQ+q7YLNL1DV8J7Rks6k99XayoHioRzA 6/6A== ARC-Authentication-Results: i=2; mx.google.com; dkim=pass header.i=@Nvidia.com header.s=selector2 header.b=Yfv940Up; arc=pass (i=1 spf=pass spfdomain=nvidia.com dmarc=pass fromdomain=nvidia.com); spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=REJECT sp=REJECT dis=NONE) header.from=nvidia.com Received: from out1.vger.email (out1.vger.email. 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Tsirkin" , Lin Ma , "Jason Wang" , Xuan Zhuo , "Parav Pandit" CC: , , Subject: [PATCH 3/4] vdpa: Add max vqp attr to vdpa_nl_policy for nlattr length check Date: Thu, 27 Jul 2023 20:57:52 +0300 Message-ID: <20230727175757.73988-7-dtatulea@nvidia.com> X-Mailer: git-send-email 2.41.0 In-Reply-To: <20230727175757.73988-1-dtatulea@nvidia.com> References: <20230727175757.73988-1-dtatulea@nvidia.com> MIME-Version: 1.0 X-NV-OnPremToCloud: ExternallySecured X-EOPAttributedMessage: 0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: DM6NAM11FT101:EE_|LV3PR12MB9260:EE_ X-MS-Office365-Filtering-Correlation-Id: eed779e9-cd5a-4f53-5ffe-08db8ecb1dab X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0; X-Microsoft-Antispam-Message-Info: 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 X-Forefront-Antispam-Report: CIP:216.228.118.233;CTRY:US;LANG:en;SCL:1;SRV:;IPV:NLI;SFV:NSPM;H:mail.nvidia.com;PTR:dc7edge2.nvidia.com;CAT:NONE;SFS:(13230028)(4636009)(396003)(39860400002)(346002)(136003)(376002)(82310400008)(451199021)(46966006)(36840700001)(40470700004)(86362001)(7636003)(356005)(36756003)(40460700003)(40480700001)(2906002)(110136005)(478600001)(54906003)(82740400003)(36860700001)(336012)(26005)(1076003)(186003)(426003)(2616005)(47076005)(41300700001)(6636002)(6666004)(316002)(8676002)(83380400001)(4326008)(70206006)(70586007)(5660300002)(8936002);DIR:OUT;SFP:1101; X-OriginatorOrg: Nvidia.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 27 Jul 2023 17:58:42.8926 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: eed779e9-cd5a-4f53-5ffe-08db8ecb1dab X-MS-Exchange-CrossTenant-Id: 43083d15-7273-40c1-b7db-39efd9ccc17a X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp: TenantId=43083d15-7273-40c1-b7db-39efd9ccc17a;Ip=[216.228.118.233];Helo=[mail.nvidia.com] X-MS-Exchange-CrossTenant-AuthSource: DM6NAM11FT101.eop-nam11.prod.protection.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: LV3PR12MB9260 X-Spam-Status: No, score=-1.1 required=5.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,FORGED_SPF_HELO, RCVD_IN_DNSWL_BLOCKED,RCVD_IN_MSPIKE_H2,SPF_HELO_PASS,SPF_NONE, T_SCC_BODY_TEXT_LINE autolearn=no autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org X-getmail-retrieved-from-mailbox: INBOX X-GMAIL-THRID: 1772598909717081359 X-GMAIL-MSGID: 1772598909717081359 From: Lin Ma The vdpa_nl_policy structure is used to validate the nlattr when parsing the incoming nlmsg. It will ensure the attribute being described produces a valid nlattr pointer in info->attrs before entering into each handler in vdpa_nl_ops. That is to say, the missing part in vdpa_nl_policy may lead to illegal nlattr after parsing, which could lead to OOB read just like CVE-2023-3773. This patch adds the missing nla_policy for vdpa max vqp attr to avoid such bugs. Fixes: ad69dd0bf26b ("vdpa: Introduce query of device config layout") Signed-off-by: Lin Ma Cc: stable@vger.kernel.org --- drivers/vdpa/vdpa.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/vdpa/vdpa.c b/drivers/vdpa/vdpa.c index 75f1df2b9d2a..f2f654fd84e5 100644 --- a/drivers/vdpa/vdpa.c +++ b/drivers/vdpa/vdpa.c @@ -1247,6 +1247,7 @@ static const struct nla_policy vdpa_nl_policy[VDPA_ATTR_MAX + 1] = { [VDPA_ATTR_MGMTDEV_DEV_NAME] = { .type = NLA_STRING }, [VDPA_ATTR_DEV_NAME] = { .type = NLA_STRING }, [VDPA_ATTR_DEV_NET_CFG_MACADDR] = NLA_POLICY_ETH_ADDR, + [VDPA_ATTR_DEV_NET_CFG_MAX_VQP] = { .type = NLA_U16 }, /* virtio spec 1.1 section 5.1.4.1 for valid MTU range */ [VDPA_ATTR_DEV_NET_CFG_MTU] = NLA_POLICY_MIN(NLA_U16, 68), [VDPA_ATTR_DEV_QUEUE_INDEX] = { .type = NLA_U32 }, From patchwork Thu Jul 27 17:57:54 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Dragos Tatulea X-Patchwork-Id: 127106 Return-Path: Delivered-To: ouuuleilei@gmail.com Received: by 2002:a59:a985:0:b0:3e4:2afc:c1 with SMTP id t5csp1288701vqo; Thu, 27 Jul 2023 11:31:49 -0700 (PDT) X-Google-Smtp-Source: APBJJlEyssZrbx08E0pPPZFL3kkkEVnK8nwPCsXGKXUZlhEDi3WGp7k5vn8gUNDFn0ak+WKSqpXz X-Received: by 2002:a17:903:24d:b0:1b8:abe7:5a80 with SMTP id j13-20020a170903024d00b001b8abe75a80mr147540plh.40.1690482709016; Thu, 27 Jul 2023 11:31:49 -0700 (PDT) ARC-Seal: i=2; a=rsa-sha256; t=1690482709; cv=pass; d=google.com; s=arc-20160816; b=GWYwp4rNJTZg4YVgOuywDxYoNq/vm5DVzBh0NXdyR0TVkPabVCbRSiNtmRIb6fRKux tgpBybzjUomX3PfnOHQGcOrTZyHnDyqvzxPRWwpwwG1WA51qeFHiLoOVSm6ZCicDecTB GlQEcKYNQniAzpVOWdJNeq+l2++CVmNPT9OhFykPdslPXh5MqvCAT/0JCG81MGx4ZuyD EGHHNvdX456fMFrYtyhJZtJXK5d8ztNl7EZj3oda9bDOD+05SFWpT15toGhts7t9cAXO YF2Cn79Cpdf2g5l1Aw+85KFqg259kgXbNZbfk7eyTmXPj5vBTVcQ6Q3WsM2b2+VWEg+h q3tg== ARC-Message-Signature: i=2; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:content-transfer-encoding:mime-version :references:in-reply-to:message-id:date:subject:cc:to:from :dkim-signature; bh=lWZ4yQYXvfaU6H77EQjQMAfKQF5C9n/gZM5EhbTLcqc=; fh=6a0ZHMPkxgQuzZ7sT7bRHl0PcZv+C+Z+yh44usy6GHE=; b=FD1ZSic0JosgOdBCNG9wpT4GeTXdcVcZXP4iJlx1duhIZmCdxS7v4k0dgGZIMMm3vG y22zCywTYj5ShoSezfFk70b0L4cqVNo5ihsIY0gROBPKkoHcepFW573Zbn+lQaLNGJWG +NYymbQZXlIxXjmcdel7aUFSTNDtWVPY9BOYhUsr+Q3n4vbCmMPqa9NCERj2ygs1Wyec AFsVLTmWSi7nDxqV8IRTX70lSKTVutLhAYc3vyqBMHdXKAhGPk9xEdw7gjv+CxJZ/c60 b4M4IVkUxI004bwZe/qSG0IrizfzaZmDw+AlXyPoFTLDY4AEGUrjsYWX38z1f+HHiKPL ODwQ== ARC-Authentication-Results: i=2; mx.google.com; dkim=pass header.i=@Nvidia.com header.s=selector2 header.b=D2mACUu9; arc=pass (i=1 spf=pass spfdomain=nvidia.com dmarc=pass fromdomain=nvidia.com); spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=REJECT sp=REJECT dis=NONE) header.from=nvidia.com Received: from out1.vger.email (out1.vger.email. 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Tsirkin" , Lin Ma , "Jason Wang" , Xuan Zhuo , "Parav Pandit" CC: , , Dragos Tatulea , Subject: [PATCH 4/4] vdpa: Enable strict validation for netlinks ops Date: Thu, 27 Jul 2023 20:57:54 +0300 Message-ID: <20230727175757.73988-9-dtatulea@nvidia.com> X-Mailer: git-send-email 2.41.0 In-Reply-To: <20230727175757.73988-1-dtatulea@nvidia.com> References: <20230727175757.73988-1-dtatulea@nvidia.com> MIME-Version: 1.0 X-NV-OnPremToCloud: ExternallySecured X-EOPAttributedMessage: 0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: DM6NAM11FT069:EE_|DM6PR12MB4315:EE_ X-MS-Office365-Filtering-Correlation-Id: 8538c0bd-97b6-4a3e-103e-08db8ecb269c X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0; X-Microsoft-Antispam-Message-Info: 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 X-Forefront-Antispam-Report: CIP:216.228.118.233;CTRY:US;LANG:en;SCL:1;SRV:;IPV:NLI;SFV:NSPM;H:mail.nvidia.com;PTR:dc7edge2.nvidia.com;CAT:NONE;SFS:(13230028)(4636009)(346002)(376002)(39860400002)(136003)(396003)(82310400008)(451199021)(36840700001)(46966006)(40470700004)(54906003)(110136005)(6666004)(2906002)(7636003)(40460700003)(478600001)(82740400003)(316002)(8936002)(5660300002)(8676002)(41300700001)(36756003)(356005)(40480700001)(4326008)(70206006)(6636002)(70586007)(336012)(1076003)(186003)(86362001)(26005)(36860700001)(2616005)(47076005)(426003)(83380400001);DIR:OUT;SFP:1101; X-OriginatorOrg: Nvidia.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 27 Jul 2023 17:58:57.8449 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: 8538c0bd-97b6-4a3e-103e-08db8ecb269c X-MS-Exchange-CrossTenant-Id: 43083d15-7273-40c1-b7db-39efd9ccc17a X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp: TenantId=43083d15-7273-40c1-b7db-39efd9ccc17a;Ip=[216.228.118.233];Helo=[mail.nvidia.com] X-MS-Exchange-CrossTenant-AuthSource: DM6NAM11FT069.eop-nam11.prod.protection.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: DM6PR12MB4315 X-Spam-Status: No, score=-1.1 required=5.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,FORGED_SPF_HELO, RCVD_IN_DNSWL_BLOCKED,RCVD_IN_MSPIKE_H2,SPF_HELO_PASS,SPF_NONE, T_SCC_BODY_TEXT_LINE autolearn=no autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org X-getmail-retrieved-from-mailbox: INBOX X-GMAIL-THRID: 1772599597573454049 X-GMAIL-MSGID: 1772599597573454049 The previous patches added the missing nla policies that were required for validation to work. Now strict validation on netlink ops can be enabled. This patch does it. Signed-off-by: Dragos Tatulea Cc: stable@vger.kernel.org --- drivers/vdpa/vdpa.c | 6 ------ 1 file changed, 6 deletions(-) diff --git a/drivers/vdpa/vdpa.c b/drivers/vdpa/vdpa.c index f2f654fd84e5..a7612e0783b3 100644 --- a/drivers/vdpa/vdpa.c +++ b/drivers/vdpa/vdpa.c @@ -1257,37 +1257,31 @@ static const struct nla_policy vdpa_nl_policy[VDPA_ATTR_MAX + 1] = { static const struct genl_ops vdpa_nl_ops[] = { { .cmd = VDPA_CMD_MGMTDEV_GET, - .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, .doit = vdpa_nl_cmd_mgmtdev_get_doit, .dumpit = vdpa_nl_cmd_mgmtdev_get_dumpit, }, { .cmd = VDPA_CMD_DEV_NEW, - .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, .doit = vdpa_nl_cmd_dev_add_set_doit, .flags = GENL_ADMIN_PERM, }, { .cmd = VDPA_CMD_DEV_DEL, - .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, .doit = vdpa_nl_cmd_dev_del_set_doit, .flags = GENL_ADMIN_PERM, }, { .cmd = VDPA_CMD_DEV_GET, - .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, .doit = vdpa_nl_cmd_dev_get_doit, .dumpit = vdpa_nl_cmd_dev_get_dumpit, }, { .cmd = VDPA_CMD_DEV_CONFIG_GET, - .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, .doit = vdpa_nl_cmd_dev_config_get_doit, .dumpit = vdpa_nl_cmd_dev_config_get_dumpit, }, { .cmd = VDPA_CMD_DEV_VSTATS_GET, - .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, .doit = vdpa_nl_cmd_dev_stats_get_doit, .flags = GENL_ADMIN_PERM, },