CVE-2026-89737
- Source
- https://cve.org/CVERecord?id=CVE-2026-89737
- Import Source
- https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-89737.json
- JSON Data
- https://api.osv.dev/v1/vulns/CVE-2026-89737
- Downstream
- Published
- 2026-09-11T19:46:45Z
- Modified
- 2026-09-12T11:47:15Z
- Summary
- usb: typec: thunderbolt: Disable work before freeing tbt on remove
- Details
-
In the Linux kernel, the following vulnerability has been resolved:
usb: typec: thunderbolt: Disable work before freeing tbt on remove
tbt_altmode_remove() drops the plug and cable references without draining tbt->work. The work function dereferences those references, and can also requeue itself in its error path. The VDM callbacks can queue the same work item.
Disable and drain tbt->work before dropping the references. This waits for an existing invocation and prevents subsequent schedule_work() calls from queueing it during teardown.
This issue was found by an in-house static analysis tool and confirmed by manual code review.
- Database specific
{ "cna_assigner": "Linux", "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/89xxx/CVE-2026-89737.json" }- References
-
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- https://git.kernel.org/stable/c/0a25484fe22f621e151367a59a82330a22ac80bc
- https://git.kernel.org/stable/c/92090f6ff2acc81e9dd99881dcfb4f8c1bdaabd3
- https://git.kernel.org/stable/c/ebb840d982a612261cfc8a7687735a140c6c7024
- https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/89xxx/CVE-2026-89737.json
- https://nvd.nist.gov/vuln/detail/CVE-2026-89737