usb: typec: ucsi: unregister debugfs entries on teardown
Summary
| CVE | CVE-2026-100079 |
|---|---|
| State | PUBLISHED |
| Assigner | Linux |
| Source Priority | CVE Program / NVD first with legacy fallback |
| Published | 2026-09-25 14:17:15 UTC |
| Updated | 2026-10-19 09:17:06 UTC |
| 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. |
Risk And Classification
Primary CVSS: v3.1 5.5 MEDIUM from [email protected]
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
EPSS: 0.001560000 probability, percentile 0.040960000 (date 2026-09-27)
Problem Types: CWE-772
CVSS v3.1 Breakdown
Attack Vector
LocalAttack Complexity
LowPrivileges Required
LowUser Interaction
NoneScope
UnchangedConfidentiality
NoneIntegrity
NoneAvailability
HighCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
NVD Known Affected Configurations (CPE 2.3)
| Type | Vendor | Product | Version | Update | Edition | Language |
|---|---|---|---|---|---|---|
| Operating System | Linux | Linux Kernel | All | All | All | All |
Vendor Declared Affected Products
| Source | Vendor | Product | Version | Platforms |
|---|---|---|---|---|
| CNA | Linux | Linux | affected df0383ffad64dc09954a60873c1e202b47f08d90 fb7393519908befdc094be4ea913f582adbf2f7c git | Not specified |
| CNA | Linux | Linux | affected df0383ffad64dc09954a60873c1e202b47f08d90 7177c215e69658adbd2f2fc5b72e14be9208d2ba git | Not specified |
| CNA | Linux | Linux | affected df0383ffad64dc09954a60873c1e202b47f08d90 1f44d001620fd3caa30619a9bc73e9d15555408b git | Not specified |
| CNA | Linux | Linux | affected df0383ffad64dc09954a60873c1e202b47f08d90 62efee351566321ad72a4abaf6eb7d972590585d git | Not specified |
| CNA | Linux | Linux | affected df0383ffad64dc09954a60873c1e202b47f08d90 eed73a65ab609b79d53de88cccc34b36dfe753c4 git | Not specified |
| CNA | Linux | Linux | affected 6.6 | Not specified |
| CNA | Linux | Linux | unaffected 6.6 semver | Not specified |
| CNA | Linux | Linux | unaffected 6.6.157 6.6.* semver | Not specified |
| CNA | Linux | Linux | unaffected 6.12.110 6.12.* semver | Not specified |
| CNA | Linux | Linux | unaffected 6.18.52 6.18.* semver | Not specified |
| CNA | Linux | Linux | unaffected 7.2.6 7.2.* semver | Not specified |
| CNA | Linux | Linux | unaffected 7.3 * original_commit_for_fix | Not specified |
References
| Reference | Source | Link | Tags |
|---|---|---|---|
| git.kernel.org/stable/c/eed73a65ab609b79d53de88cccc34b36dfe753c4 | 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | git.kernel.org | Patch |
| git.kernel.org/stable/c/62efee351566321ad72a4abaf6eb7d972590585d | 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | git.kernel.org | Patch |
| git.kernel.org/stable/c/7177c215e69658adbd2f2fc5b72e14be9208d2ba | 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | git.kernel.org | Patch |
| git.kernel.org/stable/c/1f44d001620fd3caa30619a9bc73e9d15555408b | 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | git.kernel.org | Patch |
| git.kernel.org/stable/c/fb7393519908befdc094be4ea913f582adbf2f7c | 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | git.kernel.org | Patch |
| CVE Program record | CVE.ORG | www.cve.org | canonical |
| NVD vulnerability detail | NVD | nvd.nist.gov | canonical, analysis |
No vendor comments have been submitted for this CVE.
There are currently no legacy QID mappings associated with this CVE.