CVE-2026-100079

medium

In the Linux kernel, the following vulnerability has been resolved: usb: typec: ucsi: unregister debugfs entries on teardown ucsi_register() creates per-inst…

Vendor / product: Linux — linux kernel

In the Linux kernel, the following vulnerability has been resolved: usb: typec: ucsi: unregister debugfs entries on teardown ucsi_register() creates per-instance debugfs entries, but ucsi_unregister() keeps them around until ucsi_destroy(). Drivers like ucsi_glink that unregister/register the same UCSI instance across remoteproc restart then try to create an already existing debugfs directory and log: debugfs: 'pmic_glink.ucsi.0' already exists in 'ucsi' Unregister debugfs entries as part of ucsi_unregister(), and clear ucsi->debugfs after freeing it so repeated unregister paths remain safe.

CVSS

5.5

5.5 (CVSS v3.1)

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Severity source: NVD CVSS v3.1 (nvd@nist.gov)

Timeline (UTC)

Published: 2026-09-25 14:17

Modified: 2026-10-19 09:17

NVD status: Analyzed

Last synced 2 days ago

Verified against the source API 2026-10-27 06:55 UTC

Exploitation

Not listed in CISA KEV (as of last catalog sync)

Absence from KEV does not mean a CVE is not exploited. Exploitation status: unknown (no authoritative evidence in our sources).

Affected products

linux / linux_kernel ≥6.6 <6.6.157, ≥6.7 <6.12.110, ≥6.13 <6.18.52, ≥6.19 <7.2.6

Weakness classification (CWE)

CWE-772

Source: NVD / CISA. “NVD-CWE-Other” and “NVD-CWE-noinfo” mean NVD could not assign a specific weakness.

Mitigation & advisories

Patch / mitigation: https://git.kernel.org/stable/c/1f44d001620fd3caa30619a9bc73e9d15555408b

Patch / mitigation: https://git.kernel.org/stable/c/62efee351566321ad72a4abaf6eb7d972590585d

Patch / mitigation: https://git.kernel.org/stable/c/7177c215e69658adbd2f2fc5b72e14be9208d2ba

Patch / mitigation: https://git.kernel.org/stable/c/eed73a65ab609b79d53de88cccc34b36dfe753c4

Patch / mitigation: https://git.kernel.org/stable/c/fb7393519908befdc094be4ea913f582adbf2f7c

References

https://git.kernel.org/stable/c/1f44d001620fd3caa30619a9bc73e9d15555408b 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/62efee351566321ad72a4abaf6eb7d972590585d 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/7177c215e69658adbd2f2fc5b72e14be9208d2ba 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/eed73a65ab609b79d53de88cccc34b36dfe753c4 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/fb7393519908befdc094be4ea913f582adbf2f7c 416baaa9-dc9f-4396-8d5f-8c081fb06d67

Data sources

NVD CVE API 2.0 — fetched 2026-10-27 06:55 UTC · record ↗

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CVE-2026-100079

Affected products

Weakness classification (CWE)

Mitigation & advisories

References

Data sources

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