usb: typec: ucsi: glink: fix use-after-free of ucsi on remove
In the Linux kernel, the following vulnerability has been resolved: usb: typec: ucsi: glink: fix use-after-free of ucsi on remove The pmic_glink client is released by the devres cleanup, which runs after pmic_glink_ucsi_remove() has returned, so its notification callbacks can queue work until then. Work that runs after ucsi_unregister() has been called touches freed state: it dereferences the connector array that ucsi_unregister() freed, or registers and unregisters the instance a second time. Disable both work items with disable_work_sync() before unregistering, and unregister only if the instance is still registered. This issue was found by an in-house static analysis tool.
CVE-2026-98758
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-2026-98758
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": "62b5412b1f4afab27d8df90ddcabb8e1e11a00ad",
"lessThan": "432b58cd959e594909a581b4974396cdbc9d4ca1",
"versionType": "git"
},
{
"status": "affected",
"version": "62b5412b1f4afab27d8df90ddcabb8e1e11a00ad",
"lessThan": "41934f92e7a54d4080ac0b17aacc83224946785c",
"versionType": "git"
},
{
"status": "affected",
"version": "62b5412b1f4afab27d8df90ddcabb8e1e11a00ad",
"lessThan": "ee8577de01c6b6c7dd1d76b52242c54d37a989f4",
"versionType": "git"
},
{
"status": "affected",
"version": "62b5412b1f4afab27d8df90ddcabb8e1e11a00ad",
"lessThan": "63b269ec537dc0fd26d0bd64872c26860d108c9d",
"versionType": "git"
}
],
"programFiles": [
"drivers/usb/typec/ucsi/ucsi_glink.c"
],
"defaultStatus": "unaffected"
},
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"product": "Linux",
"versions": [
{
"status": "affected",
"version": "6.4"
},
{
"status": "unaffected",
"version": "0",
"lessThan": "6.4",
"versionType": "semver"
},
{
"status": "unaffected",
"version": "6.12.113",
"versionType": "semver",
"lessThanOrEqual": "6.12.*"
},
{
"status": "unaffected",
"version": "6.18.56",
"versionType": "semver",
"lessThanOrEqual": "6.18.*"
},
{
"status": "unaffected",
"version": "7.2.10",
"versionType": "semver",
"lessThanOrEqual": "7.2.*"
},
{
"status": "unaffected",
"version": "7.3",
"versionType": "original_commit_for_fix",
"lessThanOrEqual": "*"
}
],
"programFiles": [
"drivers/usb/typec/ucsi/ucsi_glink.c"
],
"defaultStatus": "affected"
}
]- Related CVEs
- CVE-2026-98758
Source reference:
/cveMetadata/cveId
Publisher severity
No explicit severity was provided.
- Event
- #38711 · Revision 1
- Added to Heist Feed
- Publisher date