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CVE Record

CVE-2026-89737: usb: typec: thunderbolt: Disable work before freeing tbt on remove

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.

UnknownCVSS not scoredNot KEV-listedUpdated
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Vulnerability profileCVE Program record
Severity
Unknown
CVSS
Not scored
Known Exploited
No
Published
Official CVE source material

CNA and ADP enrichment extracted from CVE v5

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3Timeline events
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4Source links

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Source materials

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
LinuxLinux100e257386595b3f1865ca8a991e2ba74f9701ff, 100e257386595b3f1865ca8a991e2ba74f9701ff, 100e257386595b3f1865ca8a991e2ba74f9701ffunaffected
LinuxLinux6.14, 0, 6.18.50, 7.2.4, 7.3affected
Weakness

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