{ "dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": { "cveId": "CVE-2026-89737", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2026-09-11T19:38:34.761Z", "datePublished": "2026-09-11T19:46:45.250Z", "dateUpdated": "2026-10-19T08:51:51.314Z" }, "containers": { "cna": { "providerMetadata": { "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-10-19T08:51:51.314Z" }, "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." } ], "affected": [ { "product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": [ "drivers/usb/typec/altmodes/thunderbolt.c" ], "versions": [ { "version": "100e257386595b3f1865ca8a991e2ba74f9701ff", "lessThan": "ebb840d982a612261cfc8a7687735a140c6c7024", "status": "affected", "versionType": "git" }, { "version": "100e257386595b3f1865ca8a991e2ba74f9701ff", "lessThan": "0a25484fe22f621e151367a59a82330a22ac80bc", "status": "affected", "versionType": "git" }, { "version": "100e257386595b3f1865ca8a991e2ba74f9701ff", "lessThan": "92090f6ff2acc81e9dd99881dcfb4f8c1bdaabd3", "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/usb/typec/altmodes/thunderbolt.c" ], "versions": [ { "version": "6.14", "status": "affected" }, { "version": "0", "lessThan": "6.14", "status": "unaffected", "versionType": "semver" }, { "version": "6.18.50", "lessThanOrEqual": "6.18.*", "status": "unaffected", "versionType": "semver" }, { "version": "7.2.4", "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": "6.14", "versionEndExcluding": "6.18.50" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.14", "versionEndExcluding": "7.2.4" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.14", "versionEndExcluding": "7.3" } ] } ] } ], "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" } } } }