platform/x86: think-lmi: Free system certificate signatures
In the Linux kernel, the following vulnerability has been resolved: platform/x86: think-lmi: Free system certificate signatures Multi-certificate support also allows the system authentication object to store ->signature and ->save_signature, which leak when the driver is removed. Free the signatures to avoid leaking memory.
CVE-2026-81018
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-2026-81018
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": "5dcb5ef125907d09806509a9db8c6705041e0026",
"lessThan": "9c28adde051fe76a7754856d0a414ab89adcaa4d",
"versionType": "git"
},
{
"status": "affected",
"version": "5dcb5ef125907d09806509a9db8c6705041e0026",
"lessThan": "abbcc0354108cf47a6055b951182bf73520d0363",
"versionType": "git"
},
{
"status": "affected",
"version": "5dcb5ef125907d09806509a9db8c6705041e0026",
"lessThan": "abca989604f60fe29d7170431f819e28ec7d868a",
"versionType": "git"
}
],
"programFiles": [
"drivers/platform/x86/lenovo/think-lmi.c"
],
"defaultStatus": "unaffected"
},
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"product": "Linux",
"versions": [
{
"status": "affected",
"version": "6.13"
},
{
"status": "unaffected",
"version": "0",
"lessThan": "6.13",
"versionType": "semver"
},
{
"status": "unaffected",
"version": "6.18.50",
"versionType": "semver",
"lessThanOrEqual": "6.18.*"
},
{
"status": "unaffected",
"version": "7.2.4",
"versionType": "semver",
"lessThanOrEqual": "7.2.*"
},
{
"status": "unaffected",
"version": "7.3",
"versionType": "original_commit_for_fix",
"lessThanOrEqual": "*"
}
],
"programFiles": [
"drivers/platform/x86/lenovo/think-lmi.c"
],
"defaultStatus": "affected"
}
]- Related CVEs
- CVE-2026-81018
Source reference:
/cveMetadata/cveId
Publisher severity
No explicit severity was provided.
- Event
- #34972 · Revision 1
- Added to Heist Feed
- Publisher date