{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2021-47265",
        "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "state": "PUBLISHED",
        "assignerShortName": "Linux",
        "dateReserved": "2024-05-21T13:27:52.126Z",
        "datePublished": "2024-05-21T14:19:56.597Z",
        "dateUpdated": "2026-05-11T13:51:09.798Z"
    },
    "containers": {
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            "providerMetadata": {
                "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
                "shortName": "Linux",
                "dateUpdated": "2026-05-11T13:51:09.798Z"
            },
            "descriptions": [
                {
                    "lang": "en",
                    "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nRDMA: Verify port when creating flow rule\n\nValidate port value provided by the user and with that remove no longer\nneeded validation by the driver.  The missing check in the mlx5_ib driver\ncould cause to the below oops.\n\nCall trace:\n  _create_flow_rule+0x2d4/0xf28 [mlx5_ib]\n  mlx5_ib_create_flow+0x2d0/0x5b0 [mlx5_ib]\n  ib_uverbs_ex_create_flow+0x4cc/0x624 [ib_uverbs]\n  ib_uverbs_handler_UVERBS_METHOD_INVOKE_WRITE+0xd4/0x150 [ib_uverbs]\n  ib_uverbs_cmd_verbs.isra.7+0xb28/0xc50 [ib_uverbs]\n  ib_uverbs_ioctl+0x158/0x1d0 [ib_uverbs]\n  do_vfs_ioctl+0xd0/0xaf0\n  ksys_ioctl+0x84/0xb4\n  __arm64_sys_ioctl+0x28/0xc4\n  el0_svc_common.constprop.3+0xa4/0x254\n  el0_svc_handler+0x84/0xa0\n  el0_svc+0x10/0x26c\n Code: b9401260 f9615681 51000400 8b001c20 (f9403c1a)"
                }
            ],
            "affected": [
                {
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "unaffected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "drivers/infiniband/core/uverbs_cmd.c",
                        "drivers/infiniband/hw/mlx4/main.c",
                        "drivers/infiniband/hw/mlx5/fs.c"
                    ],
                    "versions": [
                        {
                            "version": "436f2ad05a0b65b1467ddf51bc68171c381bf844",
                            "lessThan": "8dc1b0e0ca204596c50bcd159ee069ae0f998176",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "436f2ad05a0b65b1467ddf51bc68171c381bf844",
                            "lessThan": "2adcb4c5a52a2623cd2b43efa7041e74d19f3a5e",
                            "status": "affected",
                            "versionType": "git"
                        }
                    ]
                },
                {
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "affected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "drivers/infiniband/core/uverbs_cmd.c",
                        "drivers/infiniband/hw/mlx4/main.c",
                        "drivers/infiniband/hw/mlx5/fs.c"
                    ],
                    "versions": [
                        {
                            "version": "3.12",
                            "status": "affected"
                        },
                        {
                            "version": "0",
                            "lessThan": "3.12",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "5.12.11",
                            "lessThanOrEqual": "5.12.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "5.13",
                            "lessThanOrEqual": "*",
                            "status": "unaffected",
                            "versionType": "original_commit_for_fix"
                        }
                    ]
                }
            ],
            "cpeApplicability": [
                {
                    "nodes": [
                        {
                            "operator": "OR",
                            "negate": false,
                            "cpeMatch": [
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "3.12",
                                    "versionEndExcluding": "5.12.11"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "3.12",
                                    "versionEndExcluding": "5.13"
                                }
                            ]
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                }
            ],
            "references": [
                {
                    "url": "https://git.kernel.org/stable/c/8dc1b0e0ca204596c50bcd159ee069ae0f998176"
                },
                {
                    "url": "https://git.kernel.org/stable/c/2adcb4c5a52a2623cd2b43efa7041e74d19f3a5e"
                }
            ],
            "title": "RDMA: Verify port when creating flow rule",
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                    "dateUpdated": "2024-08-04T05:32:08.160Z"
                },
                "title": "CVE Program Container",
                "references": [
                    {
                        "url": "https://git.kernel.org/stable/c/8dc1b0e0ca204596c50bcd159ee069ae0f998176",
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                "metrics": [
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                        "other": {
                            "type": "ssvc",
                            "content": {
                                "id": "CVE-2021-47265",
                                "role": "CISA Coordinator",
                                "options": [
                                    {
                                        "Exploitation": "none"
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                                "version": "2.0.3",
                                "timestamp": "2024-09-10T15:39:48.135912Z"
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