{"api_version":"1","generated_at":"2026-09-12T12:18:18+00:00","cve":"CVE-2026-89737","urls":{"html":"https://cve.report/CVE-2026-89737","api":"https://cve.report/api/cve/CVE-2026-89737.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2026-89737","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-89737"},"summary":{"title":"usb: typec: thunderbolt: Disable work before freeing tbt on remove","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nusb: typec: thunderbolt: Disable work before freeing tbt on remove\n\ntbt_altmode_remove() drops the plug and cable references without\ndraining tbt->work. The work function dereferences those references,\nand can also requeue itself in its error path. The VDM callbacks can\nqueue the same work item.\n\nDisable and drain tbt->work before dropping the references. This waits\nfor an existing invocation and prevents subsequent schedule_work()\ncalls from queueing it during teardown.\n\nThis issue was found by an in-house static analysis tool and confirmed\nby manual code review.","state":"PUBLISHED","assigner":"Linux","published_at":"2026-09-11 20:20:04","updated_at":"2026-09-11 20:20:04"},"problem_types":[],"metrics":[],"references":[{"url":"https://git.kernel.org/stable/c/92090f6ff2acc81e9dd99881dcfb4f8c1bdaabd3","name":"https://git.kernel.org/stable/c/92090f6ff2acc81e9dd99881dcfb4f8c1bdaabd3","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/ebb840d982a612261cfc8a7687735a140c6c7024","name":"https://git.kernel.org/stable/c/ebb840d982a612261cfc8a7687735a140c6c7024","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/0a25484fe22f621e151367a59a82330a22ac80bc","name":"https://git.kernel.org/stable/c/0a25484fe22f621e151367a59a82330a22ac80bc","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-89737","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-89737","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 100e257386595b3f1865ca8a991e2ba74f9701ff ebb840d982a612261cfc8a7687735a140c6c7024 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 100e257386595b3f1865ca8a991e2ba74f9701ff 0a25484fe22f621e151367a59a82330a22ac80bc git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 100e257386595b3f1865ca8a991e2ba74f9701ff 92090f6ff2acc81e9dd99881dcfb4f8c1bdaabd3 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 6.14","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.14 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":null,"legacy_qids":[]},"source_records":{"cve_program":{"containers":{"cna":{"affected":[{"defaultStatus":"unaffected","product":"Linux","programFiles":["drivers/usb/typec/altmodes/thunderbolt.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"ebb840d982a612261cfc8a7687735a140c6c7024","status":"affected","version":"100e257386595b3f1865ca8a991e2ba74f9701ff","versionType":"git"},{"lessThan":"0a25484fe22f621e151367a59a82330a22ac80bc","status":"affected","version":"100e257386595b3f1865ca8a991e2ba74f9701ff","versionType":"git"},{"lessThan":"92090f6ff2acc81e9dd99881dcfb4f8c1bdaabd3","status":"affected","version":"100e257386595b3f1865ca8a991e2ba74f9701ff","versionType":"git"}]},{"defaultStatus":"affected","product":"Linux","programFiles":["drivers/usb/typec/altmodes/thunderbolt.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"6.14"},{"lessThan":"6.14","status":"unaffected","version":"0","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":"6.18.50","versionStartIncluding":"6.14","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.2.4","versionStartIncluding":"6.14","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.3-rc1","versionStartIncluding":"6.14","vulnerable":true}],"negate":false,"operator":"OR"}]}],"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nusb: typec: thunderbolt: Disable work before freeing tbt on remove\n\ntbt_altmode_remove() drops the plug and cable references without\ndraining tbt->work. The work function dereferences those references,\nand can also requeue itself in its error path. The VDM callbacks can\nqueue the same work item.\n\nDisable and drain tbt->work before dropping the references. This waits\nfor an existing invocation and prevents subsequent schedule_work()\ncalls from queueing it during teardown.\n\nThis issue was found by an in-house static analysis tool and confirmed\nby manual code review."}],"providerMetadata":{"dateUpdated":"2026-09-11T19:46:45.250Z","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux"},"references":[{"url":"https://git.kernel.org/stable/c/ebb840d982a612261cfc8a7687735a140c6c7024"},{"url":"https://git.kernel.org/stable/c/0a25484fe22f621e151367a59a82330a22ac80bc"},{"url":"https://git.kernel.org/stable/c/92090f6ff2acc81e9dd99881dcfb4f8c1bdaabd3"}],"title":"usb: typec: thunderbolt: Disable work before freeing tbt on remove","x_generator":{"engine":"bippy-1.2.0"}}},"cveMetadata":{"assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","assignerShortName":"Linux","cveId":"CVE-2026-89737","datePublished":"2026-09-11T19:46:45.250Z","dateReserved":"2026-09-11T19:38:34.761Z","dateUpdated":"2026-09-11T19:46:45.250Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.2"},"nvd":{"publishedDate":"2026-09-11 20:20:04","lastModifiedDate":"2026-09-11 20:20:04","problem_types":[],"metrics":[],"configurations":[]},"legacy_mitre":{"record":{"CveYear":"2026","CveId":"89737","Ordinal":"1","Title":"usb: typec: thunderbolt: Disable work before freeing tbt on remo","CVE":"CVE-2026-89737","Year":"2026"},"notes":[{"CveYear":"2026","CveId":"89737","Ordinal":"1","NoteData":"In the Linux kernel, the following vulnerability has been resolved:\n\nusb: typec: thunderbolt: Disable work before freeing tbt on remove\n\ntbt_altmode_remove() drops the plug and cable references without\ndraining tbt->work. The work function dereferences those references,\nand can also requeue itself in its error path. The VDM callbacks can\nqueue the same work item.\n\nDisable and drain tbt->work before dropping the references. This waits\nfor an existing invocation and prevents subsequent schedule_work()\ncalls from queueing it during teardown.\n\nThis issue was found by an in-house static analysis tool and confirmed\nby manual code review.","Type":"Description","Title":"usb: typec: thunderbolt: Disable work before freeing tbt on remo"}]}}}