cpuidle: dt_idle_genpd: kfree() the original name allocation
In the Linux kernel, the following vulnerability has been resolved: cpuidle: dt_idle_genpd: kfree() the original name allocation dt_idle_pd_alloc() kasprintf()s the full node path, then points pd->name at kbasename() of that string. dt_idle_pd_free() kfree()s pd->name, which is no longer the start of the allocation. Copy the basename instead.
CVE-2026-89992
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-2026-89992
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": "9d976d6721dfb525b81ce981e1363c70c0975aab",
"lessThan": "1312ae33b91430ec99e69cd3d47f0e50a4ebf54b",
"versionType": "git"
},
{
"status": "affected",
"version": "9d976d6721dfb525b81ce981e1363c70c0975aab",
"lessThan": "a38caa9ed0d5c61c17d88393b14b292199289c1f",
"versionType": "git"
},
{
"status": "affected",
"version": "9d976d6721dfb525b81ce981e1363c70c0975aab",
"lessThan": "09d002c8fb0261d35ce9d8a705de5db034ee90b8",
"versionType": "git"
},
{
"status": "affected",
"version": "9d976d6721dfb525b81ce981e1363c70c0975aab",
"lessThan": "b519dfce1998c323e54a56f911cf708d9ba0e076",
"versionType": "git"
},
{
"status": "affected",
"version": "9d976d6721dfb525b81ce981e1363c70c0975aab",
"lessThan": "3394c7ba23336bdb7ece29127130fd01731d42d8",
"versionType": "git"
},
{
"status": "affected",
"version": "9d976d6721dfb525b81ce981e1363c70c0975aab",
"lessThan": "2b0ac85512b7f67479127b2713254490662eb13d",
"versionType": "git"
}
],
"programFiles": [
"drivers/cpuidle/dt_idle_genpd.c"
],
"defaultStatus": "unaffected"
},
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"product": "Linux",
"versions": [
{
"status": "affected",
"version": "5.18"
},
{
"status": "unaffected",
"version": "0",
"lessThan": "5.18",
"versionType": "semver"
},
{
"status": "unaffected",
"version": "6.1.188",
"versionType": "semver",
"lessThanOrEqual": "6.1.*"
},
{
"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": "6.18.51",
"versionType": "semver",
"lessThanOrEqual": "6.18.*"
},
{
"status": "unaffected",
"version": "7.2.5",
"versionType": "semver",
"lessThanOrEqual": "7.2.*"
},
{
"status": "unaffected",
"version": "7.3",
"versionType": "original_commit_for_fix",
"lessThanOrEqual": "*"
}
],
"programFiles": [
"drivers/cpuidle/dt_idle_genpd.c"
],
"defaultStatus": "affected"
}
]- Related CVEs
- CVE-2026-89992
Source reference:
/cveMetadata/cveId
Publisher severity
high
Source reference: /containers/cna/metrics
- Event
- #36429 · Revision 1
- Added to Heist Feed
- Publisher date