CVE-2026-100079
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().
Does this matter?
Lower severity and a low EPSS score (0.11%). Track it; it rarely justifies an emergency change on its own.
Description
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 3.1
- 5.5 MEDIUMCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- EPSS
- 0.11% probability · 1th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-772
- Affected
- linux/linux kernel
- Source
- 416baaa9-dc9f-4396-8d5f-8c081fb06d67
EPSS moved from 0.2% on 26 September 2026 to 0.1% on 26 October 2026.
References
- https://git.kernel.org/stable/c/1f44d001620fd3caa30619a9bc73e9d15555408bPatch
- https://git.kernel.org/stable/c/62efee351566321ad72a4abaf6eb7d972590585dPatch
- https://git.kernel.org/stable/c/7177c215e69658adbd2f2fc5b72e14be9208d2baPatch
- https://git.kernel.org/stable/c/eed73a65ab609b79d53de88cccc34b36dfe753c4Patch
- https://git.kernel.org/stable/c/fb7393519908befdc094be4ea913f582adbf2f7cPatch
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.