s390/pkey: Check length in pkey_pckmo handler implementation
In the Linux kernel, the following vulnerability has been resolved: s390/pkey: Check length in pkey_pckmo handler implementation Explicitly check the length of the target buffer in the pkey_pckmo implementation of the key_to_protkey() handler function. The handler function fails, if the generated output data exceeds the length of the provided target buffer.
CVE-2026-64558
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-2026-64558
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": "8fcc231ce3bea12b78bb94b280cdc03cff342435",
"lessThan": "02028a24e26d85262ab9c8fc4344e1f3503007fc",
"versionType": "git"
},
{
"status": "affected",
"version": "8fcc231ce3bea12b78bb94b280cdc03cff342435",
"lessThan": "433e5e70cdc1edf382d28d08a885b22e2b98b7da",
"versionType": "git"
},
{
"status": "affected",
"version": "8fcc231ce3bea12b78bb94b280cdc03cff342435",
"lessThan": "614aa0491c7a190556c2345dddee0b6f5ed90989",
"versionType": "git"
},
{
"status": "affected",
"version": "8fcc231ce3bea12b78bb94b280cdc03cff342435",
"lessThan": "1ac287e2af9a9112fe271427ef45eceb26bce8b4",
"versionType": "git"
}
],
"programFiles": [
"drivers/s390/crypto/pkey_pckmo.c"
],
"defaultStatus": "unaffected"
},
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"product": "Linux",
"versions": [
{
"status": "affected",
"version": "6.12"
},
{
"status": "unaffected",
"version": "0",
"lessThan": "6.12",
"versionType": "semver"
},
{
"status": "unaffected",
"version": "6.12.97",
"versionType": "semver",
"lessThanOrEqual": "6.12.*"
},
{
"status": "unaffected",
"version": "6.18.40",
"versionType": "semver",
"lessThanOrEqual": "6.18.*"
},
{
"status": "unaffected",
"version": "7.1.5",
"versionType": "semver",
"lessThanOrEqual": "7.1.*"
},
{
"status": "unaffected",
"version": "7.2",
"versionType": "original_commit_for_fix",
"lessThanOrEqual": "*"
}
],
"programFiles": [
"drivers/s390/crypto/pkey_pckmo.c"
],
"defaultStatus": "affected"
}
]- Related CVEs
- CVE-2026-64558
Source reference:
/cveMetadata/cveId
Publisher severity
high
Source reference: /containers/cna/metrics
- Event
- #41084 · Revision 1
- Added to Heist Feed
- Publisher date