{"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", 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"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": 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"https://git.kernel.org/stable/c/d6764992f17b23d91ff93ce905ab53c2aa7191f0"}], "title": "thunderbolt: Bound the DROM dual link port number before indexing sw->ports", "x_generator": {"engine": "bippy-1.2.0"}}}}

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{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "Linux", "programFiles": ["drivers/thunderbolt/eeprom.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"lessThan": "6c892ed9f4129ae40ef0f92e1bb31aa0b0ddc72c", "status": "affected", "version": "cd22e73bdf5eff7e68a0f8bdfbce123ad43651f6", "versionType": "git"}, {"lessThan": "3d3c212b70633332ab71672aa2bc6af257d2ec83", "status": "affected", "version": "cd22e73bdf5eff7e68a0f8bdfbce123ad43651f6", "versionType": "git"}, {"lessThan": "b98e1e28bd95b0fa33164eec1e763d26c7058b39", "status": "affected", "version": "cd22e73bdf5eff7e68a0f8bdfbce123ad43651f6", "versionType": "git"}, {"lessThan": "50f0c8dd8c3390f851cfb97ca13116f9ee6469d1", "status": "affected", "version": "cd22e73bdf5eff7e68a0f8bdfbce123ad43651f6", "versionType": "git"}, {"lessThan": "f28066057134aa9294caa597b670daf505ad9dce", "status": "affected", "version": "cd22e73bdf5eff7e68a0f8bdfbce123ad43651f6", "versionType": "git"}, {"lessThan": "40d2ffb74094cf36edbe05855566a4c58b6ce808", "status": "affected", "version": "cd22e73bdf5eff7e68a0f8bdfbce123ad43651f6", "versionType": "git"}, {"lessThan": "f32c3a9a77cfb50934a60b05d5407649af062535", "status": "affected", "version": "cd22e73bdf5eff7e68a0f8bdfbce123ad43651f6", "versionType": "git"}, {"lessThan": "d6764992f17b23d91ff93ce905ab53c2aa7191f0", "status": "affected", "version": "cd22e73bdf5eff7e68a0f8bdfbce123ad43651f6", "versionType": "git"}]}, {"defaultStatus": "affected", "product": "Linux", "programFiles": ["drivers/thunderbolt/eeprom.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"status": "affected", "version": "3.17"}, {"lessThan": "3.17", "status": "unaffected", "version": "0", "versionType": "semver"}, {"lessThanOrEqual": "5.10.*", "status": "unaffected", "version": "5.10.265", "versionType": "semver"}, {"lessThanOrEqual": "5.15.*", "status": "unaffected", "version": "5.15.216", "versionType": "semver"}, {"lessThanOrEqual": "6.1.*", "status": "unaffected", "version": "6.1.183", "versionType": "semver"}, {"lessThanOrEqual": "6.6.*", "status": "unaffected", "version": "6.6.152", "versionType": "semver"}, {"lessThanOrEqual": "6.12.*", "status": "unaffected", "version": "6.12.104", "versionType": "semver"}, {"lessThanOrEqual": "6.18.*", "status": "unaffected", "version": "6.18.45", "versionType": "semver"}, {"lessThanOrEqual": "7.1.*", "status": "unaffected", "version": "7.1.9", "versionType": "semver"}, {"lessThanOrEqual": "*", "status": "unaffected", "version": "7.2", "versionType": "original_commit_for_fix"}]}], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}], "cveTags": [], "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."}], "id": "CVE-2026-74585", "lastModified": "2026-08-22T16:16:30.560", "metrics": {}, "published": "2026-08-22T16:16:30.560", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/3d3c212b70633332ab71672aa2bc6af257d2ec83"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/40d2ffb74094cf36edbe05855566a4c58b6ce808"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/50f0c8dd8c3390f851cfb97ca13116f9ee6469d1"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/6c892ed9f4129ae40ef0f92e1bb31aa0b0ddc72c"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/b98e1e28bd95b0fa33164eec1e763d26c7058b39"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/d6764992f17b23d91ff93ce905ab53c2aa7191f0"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/f28066057134aa9294caa597b670daf505ad9dce"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/f32c3a9a77cfb50934a60b05d5407649af062535"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Received"}

{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[cd22e73bdf5eff7e68a0f8bdfbce123ad43651f6,6c892ed9f4129ae40ef0f92e1bb31aa0b0ddc72c)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[cd22e73bdf5eff7e68a0f8bdfbce123ad43651f6,3d3c212b70633332ab71672aa2bc6af257d2ec83)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[cd22e73bdf5eff7e68a0f8bdfbce123ad43651f6,b98e1e28bd95b0fa33164eec1e763d26c7058b39)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[cd22e73bdf5eff7e68a0f8bdfbce123ad43651f6,50f0c8dd8c3390f851cfb97ca13116f9ee6469d1)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[cd22e73bdf5eff7e68a0f8bdfbce123ad43651f6,f28066057134aa9294caa597b670daf505ad9dce)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[cd22e73bdf5eff7e68a0f8bdfbce123ad43651f6,40d2ffb74094cf36edbe05855566a4c58b6ce808)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[cd22e73bdf5eff7e68a0f8bdfbce123ad43651f6,f32c3a9a77cfb50934a60b05d5407649af062535)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[cd22e73bdf5eff7e68a0f8bdfbce123ad43651f6,d6764992f17b23d91ff93ce905ab53c2aa7191f0)"}}], "enrichment": {"confidence": 99.0, "confidence_source": "inferred", "scores": [{"score": 99.0, "source": "inferred"}, {"score": 100.0, "source": "matching"}]}, "original": {"product": "Linux", "source": "cna", "vendor": "Linux"}, "product": "linux_kernel", "vendor": "linux"}, {"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "3.17"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[0,3.17)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[5.10.265,5.11.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[5.15.216,5.16.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.1.183,6.2.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.6.152,6.7.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.12.104,6.13.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.18.45,6.19.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[7.1.9,7.2.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[7.2,*]"}}], "enrichment": {"confidence": 99.0, "confidence_source": "inferred", "scores": [{"score": 99.0, "source": "inferred"}, {"score": 100.0, "source": "matching"}]}, "original": {"product": "Linux", "source": "cna", "vendor": "Linux"}, "product": "linux_kernel", "vendor": "linux"}], "created": "2026-08-22T16:30:05.475894+00:00", "updated": "2026-08-22T22:30:16.750635+00:00", "vendors": ["linux", "linux$PRODUCT$linux_kernel"], "weaknesses": ["CWE-788", "CWE-20"]}