{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2026-74585",
        "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "state": "PUBLISHED",
        "assignerShortName": "Linux",
        "dateReserved": "2026-08-15T05:44:03.918Z",
        "datePublished": "2026-08-22T15:31:38.339Z",
        "dateUpdated": "2026-08-22T15:31:38.339Z"
    },
    "containers": {
        "cna": {
            "providerMetadata": {
                "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
                "shortName": "Linux",
                "dateUpdated": "2026-08-22T15:31:38.339Z"
            },
            "descriptions": [
                {
                    "lang": "en",
                    "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nthunderbolt: Bound the DROM dual link port number before indexing sw->ports\n\ntb_drom_parse_entry_port() validates the device-supplied header->index\nagainst sw->config.max_port_number before indexing sw->ports[], but the\nsibling field entry->dual_link_port_nr -- a 6-bit value also read from\nthe DROM -- indexes the same array with no such check. A malicious or\nmalformed Thunderbolt device can set dual_link_port_nr beyond the\nallocated sw->ports[] (max_port_number + 1 entries), producing an\nout-of-bounds tb_port pointer that is stored and later dereferenced.\n\nReject a port entry whose dual_link_port_nr exceeds max_port_number,\nthe same bound already applied to header->index."
                }
            ],
            "affected": [
                {
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "unaffected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "drivers/thunderbolt/eeprom.c"
                    ],
                    "versions": [
                        {
                            "version": "cd22e73bdf5eff7e68a0f8bdfbce123ad43651f6",
                            "lessThan": "6c892ed9f4129ae40ef0f92e1bb31aa0b0ddc72c",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "cd22e73bdf5eff7e68a0f8bdfbce123ad43651f6",
                            "lessThan": "3d3c212b70633332ab71672aa2bc6af257d2ec83",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "cd22e73bdf5eff7e68a0f8bdfbce123ad43651f6",
                            "lessThan": "b98e1e28bd95b0fa33164eec1e763d26c7058b39",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "cd22e73bdf5eff7e68a0f8bdfbce123ad43651f6",
                            "lessThan": "50f0c8dd8c3390f851cfb97ca13116f9ee6469d1",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "cd22e73bdf5eff7e68a0f8bdfbce123ad43651f6",
                            "lessThan": "f28066057134aa9294caa597b670daf505ad9dce",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "cd22e73bdf5eff7e68a0f8bdfbce123ad43651f6",
                            "lessThan": "40d2ffb74094cf36edbe05855566a4c58b6ce808",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "cd22e73bdf5eff7e68a0f8bdfbce123ad43651f6",
                            "lessThan": "f32c3a9a77cfb50934a60b05d5407649af062535",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "cd22e73bdf5eff7e68a0f8bdfbce123ad43651f6",
                            "lessThan": "d6764992f17b23d91ff93ce905ab53c2aa7191f0",
                            "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/thunderbolt/eeprom.c"
                    ],
                    "versions": [
                        {
                            "version": "3.17",
                            "status": "affected"
                        },
                        {
                            "version": "0",
                            "lessThan": "3.17",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "5.10.265",
                            "lessThanOrEqual": "5.10.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "5.15.216",
                            "lessThanOrEqual": "5.15.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.1.183",
                            "lessThanOrEqual": "6.1.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.6.152",
                            "lessThanOrEqual": "6.6.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.12.104",
                            "lessThanOrEqual": "6.12.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.18.45",
                            "lessThanOrEqual": "6.18.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "7.1.9",
                            "lessThanOrEqual": "7.1.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "7.2",
                            "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": "3.17",
                                    "versionEndExcluding": "5.10.265"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "3.17",
                                    "versionEndExcluding": "5.15.216"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "3.17",
                                    "versionEndExcluding": "6.1.183"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "3.17",
                                    "versionEndExcluding": "6.6.152"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "3.17",
                                    "versionEndExcluding": "6.12.104"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "3.17",
                                    "versionEndExcluding": "6.18.45"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "3.17",
                                    "versionEndExcluding": "7.1.9"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "3.17",
                                    "versionEndExcluding": "7.2"
                                }
                            ]
                        }
                    ]
                }
            ],
            "references": [
                {
                    "url": "https://git.kernel.org/stable/c/6c892ed9f4129ae40ef0f92e1bb31aa0b0ddc72c"
                },
                {
                    "url": "https://git.kernel.org/stable/c/3d3c212b70633332ab71672aa2bc6af257d2ec83"
                },
                {
                    "url": "https://git.kernel.org/stable/c/b98e1e28bd95b0fa33164eec1e763d26c7058b39"
                },
                {
                    "url": "https://git.kernel.org/stable/c/50f0c8dd8c3390f851cfb97ca13116f9ee6469d1"
                },
                {
                    "url": "https://git.kernel.org/stable/c/f28066057134aa9294caa597b670daf505ad9dce"
                },
                {
                    "url": "https://git.kernel.org/stable/c/40d2ffb74094cf36edbe05855566a4c58b6ce808"
                },
                {
                    "url": "https://git.kernel.org/stable/c/f32c3a9a77cfb50934a60b05d5407649af062535"
                },
                {
                    "url": "https://git.kernel.org/stable/c/d6764992f17b23d91ff93ce905ab53c2aa7191f0"
                }
            ],
            "title": "thunderbolt: Bound the DROM dual link port number before indexing sw->ports",
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}