usb: typec: ucsi: unregister debugfs entries on teardown
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.
CVE-2026-100079
Primary source · Revision 1
Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.
Security context
Source reference: cve:CVE-2026-100079
Linux
Source reference: /containers/cna/affected/0/product
- Affected versions
- Not stated in this record
- Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
Linux
Source reference: /containers/cna/affected/1/product
- Affected versions
- Not stated in this record
- Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
Structured affected-version data
Original package identities and version rules from this source.
[
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"product": "Linux",
"versions": [
{
"status": "affected",
"version": "df0383ffad64dc09954a60873c1e202b47f08d90",
"lessThan": "fb7393519908befdc094be4ea913f582adbf2f7c",
"versionType": "git"
},
{
"status": "affected",
"version": "df0383ffad64dc09954a60873c1e202b47f08d90",
"lessThan": "7177c215e69658adbd2f2fc5b72e14be9208d2ba",
"versionType": "git"
},
{
"status": "affected",
"version": "df0383ffad64dc09954a60873c1e202b47f08d90",
"lessThan": "1f44d001620fd3caa30619a9bc73e9d15555408b",
"versionType": "git"
},
{
"status": "affected",
"version": "df0383ffad64dc09954a60873c1e202b47f08d90",
"lessThan": "62efee351566321ad72a4abaf6eb7d972590585d",
"versionType": "git"
},
{
"status": "affected",
"version": "df0383ffad64dc09954a60873c1e202b47f08d90",
"lessThan": "eed73a65ab609b79d53de88cccc34b36dfe753c4",
"versionType": "git"
}
],
"programFiles": [
"drivers/usb/typec/ucsi/debugfs.c",
"drivers/usb/typec/ucsi/ucsi.c"
],
"defaultStatus": "unaffected"
},
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"product": "Linux",
"versions": [
{
"status": "affected",
"version": "6.6"
},
{
"status": "unaffected",
"version": "0",
"lessThan": "6.6",
"versionType": "semver"
},
{
"status": "unaffected",
"version": "6.6.157",
"versionType": "semver",
"lessThanOrEqual": "6.6.*"
},
{
"status": "unaffected",
"version": "6.12.110",
"versionType": "semver",
"lessThanOrEqual": "6.12.*"
},
{
"status": "unaffected",
"version": "6.18.52",
"versionType": "semver",
"lessThanOrEqual": "6.18.*"
},
{
"status": "unaffected",
"version": "7.2.6",
"versionType": "semver",
"lessThanOrEqual": "7.2.*"
},
{
"status": "unaffected",
"version": "7.3",
"versionType": "original_commit_for_fix",
"lessThanOrEqual": "*"
}
],
"programFiles": [
"drivers/usb/typec/ucsi/debugfs.c",
"drivers/usb/typec/ucsi/ucsi.c"
],
"defaultStatus": "affected"
}
]- Related CVEs
- CVE-2026-100079
Source reference:
/cveMetadata/cveId
Publisher severity
No explicit severity was provided.
- Event
- #34775 · Revision 1
- Added to Heist Feed
- Publisher date