{"api_version":"1","generated_at":"2026-09-14T08:03:53+00:00","cve":"CVE-2026-80990","urls":{"html":"https://cve.report/CVE-2026-80990","api":"https://cve.report/api/cve/CVE-2026-80990.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2026-80990","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-80990"},"summary":{"title":"net: thunderbolt: Release the Rx HopID that was handed out on mismatch","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nnet: thunderbolt: Release the Rx HopID that was handed out on mismatch\n\ntb_xdomain_alloc_in_hopid() passes the wanted HopID to ida_alloc_range()\nas the lower bound, so a taken id is not an error there: the allocator\nreturns the next free one above it. tbnet_connected_work() asks for the\npeer's transmit path, treats any other id as a failure and returns\nwithout releasing what it got, so that allocation stays live for the rest\nof the XDomain connection with nothing left holding a reference to it.\n\nRelease the id when it is not the one we asked for, the same way the\nerror unwind at the end of the function releases the expected one.","state":"PUBLISHED","assigner":"Linux","published_at":"2026-09-11 20:19:05","updated_at":"2026-09-11 20:19:05"},"problem_types":[],"metrics":[],"references":[{"url":"https://git.kernel.org/stable/c/61ff3c353e5d2ff4eb9d0b6d8d9e47805b136eea","name":"https://git.kernel.org/stable/c/61ff3c353e5d2ff4eb9d0b6d8d9e47805b136eea","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/1c361f6cf39be7cc0ce37c0b67bd1cdf74b0a0c1","name":"https://git.kernel.org/stable/c/1c361f6cf39be7cc0ce37c0b67bd1cdf74b0a0c1","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/9eac1817bfc5fa76e3a2d1b8fd824cc6ef5a9ab0","name":"https://git.kernel.org/stable/c/9eac1817bfc5fa76e3a2d1b8fd824cc6ef5a9ab0","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/2f1463554d0561a2fead81e3888604e5c1125e29","name":"https://git.kernel.org/stable/c/2f1463554d0561a2fead81e3888604e5c1125e29","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-80990","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-80990","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 180b0689425c6fb2b35e69a3316ee38371a782df 9eac1817bfc5fa76e3a2d1b8fd824cc6ef5a9ab0 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 180b0689425c6fb2b35e69a3316ee38371a782df 61ff3c353e5d2ff4eb9d0b6d8d9e47805b136eea git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 180b0689425c6fb2b35e69a3316ee38371a782df 1c361f6cf39be7cc0ce37c0b67bd1cdf74b0a0c1 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 180b0689425c6fb2b35e69a3316ee38371a782df 2f1463554d0561a2fead81e3888604e5c1125e29 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 5.13","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 5.13 semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.12.109 6.12.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.18.50 6.18.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 7.2.4 7.2.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 7.3-rc1 * original_commit_for_fix","platforms":[]}],"timeline":[],"solutions":[],"workarounds":[],"exploits":[],"credits":[],"nvd_cpes":[],"vendor_comments":[],"enrichments":{"kev":null,"epss":{"cve_year":"2026","cve_id":"80990","cve":"CVE-2026-80990","epss":"0.002000000","percentile":"0.099350000","score_date":"2026-09-13","updated_at":"2026-09-14 00:18:03"},"legacy_qids":[]},"source_records":{"cve_program":{"containers":{"cna":{"affected":[{"defaultStatus":"unaffected","product":"Linux","programFiles":["drivers/net/thunderbolt/main.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"9eac1817bfc5fa76e3a2d1b8fd824cc6ef5a9ab0","status":"affected","version":"180b0689425c6fb2b35e69a3316ee38371a782df","versionType":"git"},{"lessThan":"61ff3c353e5d2ff4eb9d0b6d8d9e47805b136eea","status":"affected","version":"180b0689425c6fb2b35e69a3316ee38371a782df","versionType":"git"},{"lessThan":"1c361f6cf39be7cc0ce37c0b67bd1cdf74b0a0c1","status":"affected","version":"180b0689425c6fb2b35e69a3316ee38371a782df","versionType":"git"},{"lessThan":"2f1463554d0561a2fead81e3888604e5c1125e29","status":"affected","version":"180b0689425c6fb2b35e69a3316ee38371a782df","versionType":"git"}]},{"defaultStatus":"affected","product":"Linux","programFiles":["drivers/net/thunderbolt/main.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"5.13"},{"lessThan":"5.13","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"6.12.*","status":"unaffected","version":"6.12.109","versionType":"semver"},{"lessThanOrEqual":"6.18.*","status":"unaffected","version":"6.18.50","versionType":"semver"},{"lessThanOrEqual":"7.2.*","status":"unaffected","version":"7.2.4","versionType":"semver"},{"lessThanOrEqual":"*","status":"unaffected","version":"7.3-rc1","versionType":"original_commit_for_fix"}]}],"cpeApplicability":[{"nodes":[{"cpeMatch":[{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.12.109","versionStartIncluding":"5.13","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.18.50","versionStartIncluding":"5.13","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.2.4","versionStartIncluding":"5.13","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.3-rc1","versionStartIncluding":"5.13","vulnerable":true}],"negate":false,"operator":"OR"}]}],"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nnet: thunderbolt: Release the Rx HopID that was handed out on mismatch\n\ntb_xdomain_alloc_in_hopid() passes the wanted HopID to ida_alloc_range()\nas the lower bound, so a taken id is not an error there: the allocator\nreturns the next free one above it. tbnet_connected_work() asks for the\npeer's transmit path, treats any other id as a failure and returns\nwithout releasing what it got, so that allocation stays live for the rest\nof the XDomain connection with nothing left holding a reference to it.\n\nRelease the id when it is not the one we asked for, the same way the\nerror unwind at the end of the function releases the expected one."}],"providerMetadata":{"dateUpdated":"2026-09-11T19:42:47.534Z","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux"},"references":[{"url":"https://git.kernel.org/stable/c/9eac1817bfc5fa76e3a2d1b8fd824cc6ef5a9ab0"},{"url":"https://git.kernel.org/stable/c/61ff3c353e5d2ff4eb9d0b6d8d9e47805b136eea"},{"url":"https://git.kernel.org/stable/c/1c361f6cf39be7cc0ce37c0b67bd1cdf74b0a0c1"},{"url":"https://git.kernel.org/stable/c/2f1463554d0561a2fead81e3888604e5c1125e29"}],"title":"net: thunderbolt: Release the Rx HopID that was handed out on mismatch","x_generator":{"engine":"bippy-1.2.0"}}},"cveMetadata":{"assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","assignerShortName":"Linux","cveId":"CVE-2026-80990","datePublished":"2026-09-11T19:42:47.534Z","dateReserved":"2026-08-26T14:34:25.811Z","dateUpdated":"2026-09-11T19:42:47.534Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.2"},"nvd":{"publishedDate":"2026-09-11 20:19:05","lastModifiedDate":"2026-09-11 20:19:05","problem_types":[],"metrics":[],"configurations":[]},"legacy_mitre":{"record":{"CveYear":"2026","CveId":"80990","Ordinal":"1","Title":"net: thunderbolt: Release the Rx HopID that was handed out on mi","CVE":"CVE-2026-80990","Year":"2026"},"notes":[{"CveYear":"2026","CveId":"80990","Ordinal":"1","NoteData":"In the Linux kernel, the following vulnerability has been resolved:\n\nnet: thunderbolt: Release the Rx HopID that was handed out on mismatch\n\ntb_xdomain_alloc_in_hopid() passes the wanted HopID to ida_alloc_range()\nas the lower bound, so a taken id is not an error there: the allocator\nreturns the next free one above it. tbnet_connected_work() asks for the\npeer's transmit path, treats any other id as a failure and returns\nwithout releasing what it got, so that allocation stays live for the rest\nof the XDomain connection with nothing left holding a reference to it.\n\nRelease the id when it is not the one we asked for, the same way the\nerror unwind at the end of the function releases the expected one.","Type":"Description","Title":"net: thunderbolt: Release the Rx HopID that was handed out on mi"}]}}}