{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2021-47301",
        "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "state": "PUBLISHED",
        "assignerShortName": "Linux",
        "dateReserved": "2024-05-21T13:27:52.132Z",
        "datePublished": "2024-05-21T14:35:22.705Z",
        "dateUpdated": "2026-05-11T13:51:50.540Z"
    },
    "containers": {
        "cna": {
            "providerMetadata": {
                "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
                "shortName": "Linux",
                "dateUpdated": "2026-05-11T13:51:50.540Z"
            },
            "descriptions": [
                {
                    "lang": "en",
                    "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nigb: Fix use-after-free error during reset\n\nCleans the next descriptor to watch (next_to_watch) when cleaning the\nTX ring.\n\nFailure to do so can cause invalid memory accesses. If igb_poll() runs\nwhile the controller is reset this can lead to the driver try to free\na skb that was already freed.\n\n(The crash is harder to reproduce with the igb driver, but the same\npotential problem exists as the code is identical to igc)"
                }
            ],
            "affected": [
                {
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "unaffected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "drivers/net/ethernet/intel/igb/igb_main.c"
                    ],
                    "versions": [
                        {
                            "version": "7cc6fd4c60f267e17b0baef1580d7a6258c0a6f0",
                            "lessThan": "d7367f781e5a9ca5df9082b15b272b55e76931f8",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "7cc6fd4c60f267e17b0baef1580d7a6258c0a6f0",
                            "lessThan": "d3ccb18ed5ac3283c7b31ecc685b499e580d5492",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "7cc6fd4c60f267e17b0baef1580d7a6258c0a6f0",
                            "lessThan": "88e0720133d42d34851c8721cf5f289a50a8710f",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "7cc6fd4c60f267e17b0baef1580d7a6258c0a6f0",
                            "lessThan": "f153664d8e70c11d0371341613651e1130e20240",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "7cc6fd4c60f267e17b0baef1580d7a6258c0a6f0",
                            "lessThan": "8e24c12f2ff6d32fd9f057382f08e748ec97194c",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "7cc6fd4c60f267e17b0baef1580d7a6258c0a6f0",
                            "lessThan": "7b292608db23ccbbfbfa50cdb155d01725d7a52e",
                            "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/net/ethernet/intel/igb/igb_main.c"
                    ],
                    "versions": [
                        {
                            "version": "4.12",
                            "status": "affected"
                        },
                        {
                            "version": "0",
                            "lessThan": "4.12",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "4.14.241",
                            "lessThanOrEqual": "4.14.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "4.19.199",
                            "lessThanOrEqual": "4.19.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "5.4.136",
                            "lessThanOrEqual": "5.4.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "5.10.54",
                            "lessThanOrEqual": "5.10.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "5.13.6",
                            "lessThanOrEqual": "5.13.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "5.14",
                            "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": "4.12",
                                    "versionEndExcluding": "4.14.241"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "4.12",
                                    "versionEndExcluding": "4.19.199"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "4.12",
                                    "versionEndExcluding": "5.4.136"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "4.12",
                                    "versionEndExcluding": "5.10.54"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "4.12",
                                    "versionEndExcluding": "5.13.6"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "4.12",
                                    "versionEndExcluding": "5.14"
                                }
                            ]
                        }
                    ]
                }
            ],
            "references": [
                {
                    "url": "https://git.kernel.org/stable/c/d7367f781e5a9ca5df9082b15b272b55e76931f8"
                },
                {
                    "url": "https://git.kernel.org/stable/c/d3ccb18ed5ac3283c7b31ecc685b499e580d5492"
                },
                {
                    "url": "https://git.kernel.org/stable/c/88e0720133d42d34851c8721cf5f289a50a8710f"
                },
                {
                    "url": "https://git.kernel.org/stable/c/f153664d8e70c11d0371341613651e1130e20240"
                },
                {
                    "url": "https://git.kernel.org/stable/c/8e24c12f2ff6d32fd9f057382f08e748ec97194c"
                },
                {
                    "url": "https://git.kernel.org/stable/c/7b292608db23ccbbfbfa50cdb155d01725d7a52e"
                }
            ],
            "title": "igb: Fix use-after-free error during reset",
            "x_generator": {
                "engine": "bippy-1.2.0"
            }
        },
        "adp": [
            {
                "providerMetadata": {
                    "orgId": "af854a3a-2127-422b-91ae-364da2661108",
                    "shortName": "CVE",
                    "dateUpdated": "2024-08-04T05:32:08.341Z"
                },
                "title": "CVE Program Container",
                "references": [
                    {
                        "url": "https://git.kernel.org/stable/c/d7367f781e5a9ca5df9082b15b272b55e76931f8",
                        "tags": [
                            "x_transferred"
                        ]
                    },
                    {
                        "url": "https://git.kernel.org/stable/c/d3ccb18ed5ac3283c7b31ecc685b499e580d5492",
                        "tags": [
                            "x_transferred"
                        ]
                    },
                    {
                        "url": "https://git.kernel.org/stable/c/88e0720133d42d34851c8721cf5f289a50a8710f",
                        "tags": [
                            "x_transferred"
                        ]
                    },
                    {
                        "url": "https://git.kernel.org/stable/c/f153664d8e70c11d0371341613651e1130e20240",
                        "tags": [
                            "x_transferred"
                        ]
                    },
                    {
                        "url": "https://git.kernel.org/stable/c/8e24c12f2ff6d32fd9f057382f08e748ec97194c",
                        "tags": [
                            "x_transferred"
                        ]
                    },
                    {
                        "url": "https://git.kernel.org/stable/c/7b292608db23ccbbfbfa50cdb155d01725d7a52e",
                        "tags": [
                            "x_transferred"
                        ]
                    }
                ]
            },
            {
                "metrics": [
                    {
                        "other": {
                            "type": "ssvc",
                            "content": {
                                "id": "CVE-2021-47301",
                                "role": "CISA Coordinator",
                                "options": [
                                    {
                                        "Exploitation": "none"
                                    },
                                    {
                                        "Automatable": "no"
                                    },
                                    {
                                        "Technical Impact": "partial"
                                    }
                                ],
                                "version": "2.0.3",
                                "timestamp": "2024-09-10T15:39:19.137854Z"
                            }
                        }
                    }
                ],
                "title": "CISA ADP Vulnrichment",
                "providerMetadata": {
                    "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
                    "shortName": "CISA-ADP",
                    "dateUpdated": "2024-09-11T17:33:55.043Z"
                }
            }
        ]
    }
}