{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2026-98791",
        "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "state": "PUBLISHED",
        "assignerShortName": "Linux",
        "dateReserved": "2026-09-25T10:25:14.370Z",
        "datePublished": "2026-10-18T15:48:30.080Z",
        "dateUpdated": "2026-10-19T09:25:44.148Z"
    },
    "containers": {
        "cna": {
            "providerMetadata": {
                "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
                "shortName": "Linux",
                "dateUpdated": "2026-10-19T09:25:44.148Z"
            },
            "descriptions": [
                {
                    "lang": "en",
                    "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet/mlx5e: Fix AF_XDP TX timestamp teardown NULL dereference\n\nDuring XSK TX queue teardown, outstanding descriptors are completed\nwithout a CQE. If one requested a TX timestamp, the completion path\npasses that NULL CQE to mlx5e_xsk_fill_timestamp(), which dereferences\nit.\n\nReturn zero when no CQE is available, indicating that teardown did not\nproduce a TX timestamp."
                }
            ],
            "affected": [
                {
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "unaffected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "drivers/net/ethernet/mellanox/mlx5/core/en/xdp.c"
                    ],
                    "versions": [
                        {
                            "version": "ec706a860eba99bf934d59f74b5db90af44e882e",
                            "lessThan": "fce70b6bf9f3261e887419a4e7caa25b80fa9d55",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "ec706a860eba99bf934d59f74b5db90af44e882e",
                            "lessThan": "f81d40e2eb69552334f510114f3e6edd0d43178b",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "ec706a860eba99bf934d59f74b5db90af44e882e",
                            "lessThan": "63df0ef4c6e3105589e6bb2e758ce611b0ada86c",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "ec706a860eba99bf934d59f74b5db90af44e882e",
                            "lessThan": "7b97273cbebe9dd4fddc457f0c4f2a124d0e3996",
                            "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/mellanox/mlx5/core/en/xdp.c"
                    ],
                    "versions": [
                        {
                            "version": "6.8",
                            "status": "affected"
                        },
                        {
                            "version": "0",
                            "lessThan": "6.8",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.12.113",
                            "lessThanOrEqual": "6.12.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.18.56",
                            "lessThanOrEqual": "6.18.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "7.2.10",
                            "lessThanOrEqual": "7.2.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "7.3",
                            "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": "6.8",
                                    "versionEndExcluding": "6.12.113"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "6.8",
                                    "versionEndExcluding": "6.18.56"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "6.8",
                                    "versionEndExcluding": "7.2.10"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "6.8",
                                    "versionEndExcluding": "7.3"
                                }
                            ]
                        }
                    ]
                }
            ],
            "references": [
                {
                    "url": "https://git.kernel.org/stable/c/fce70b6bf9f3261e887419a4e7caa25b80fa9d55"
                },
                {
                    "url": "https://git.kernel.org/stable/c/f81d40e2eb69552334f510114f3e6edd0d43178b"
                },
                {
                    "url": "https://git.kernel.org/stable/c/63df0ef4c6e3105589e6bb2e758ce611b0ada86c"
                },
                {
                    "url": "https://git.kernel.org/stable/c/7b97273cbebe9dd4fddc457f0c4f2a124d0e3996"
                }
            ],
            "title": "net/mlx5e: Fix AF_XDP TX timestamp teardown NULL dereference",
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                "engine": "bippy-1.2.0"
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        }
    }
}