s390/zcrypt: Fix memory leak with CCA cards used as accelerator
In the Linux kernel, the following vulnerability has been resolved: s390/zcrypt: Fix memory leak with CCA cards used as accelerator Tests showed that there is a memory leak if CCA cards are used as accelerator for clear key RSA requests (ME and CRT). With the last rework for the memory allocation the AP messages are allocated by ap_init_apmsg() but for some reason on two places (ME and CRT) the older allocation was still in place. So the first allocation simple was never freed.
CVE-2026-31746
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-2026-31746
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": "919b3885c293057061af32dfeb0e20bba4f7a378",
"lessThan": "1650268579e1113b30402dbcca4dba6589a0fccf",
"versionType": "git"
},
{
"status": "affected",
"version": "57db62a130ce69e6f3a870cf1119d8f860391f97",
"lessThan": "586222c37d4027dbf60a604fbe820184fee7c1c9",
"versionType": "git"
},
{
"status": "affected",
"version": "57db62a130ce69e6f3a870cf1119d8f860391f97",
"lessThan": "ace37bfec3822033e59fff390f2ff99fc96ebe4f",
"versionType": "git"
},
{
"status": "affected",
"version": "57db62a130ce69e6f3a870cf1119d8f860391f97",
"lessThan": "c8d46f17c2fc7d25c18e60c008928aecab26184d",
"versionType": "git"
}
],
"programFiles": [
"drivers/s390/crypto/zcrypt_msgtype6.c"
],
"defaultStatus": "unaffected"
},
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"product": "Linux",
"versions": [
{
"status": "affected",
"version": "6.16"
},
{
"status": "unaffected",
"version": "0",
"lessThan": "6.16",
"versionType": "semver"
},
{
"status": "unaffected",
"version": "6.18.22",
"versionType": "semver",
"lessThanOrEqual": "6.18.*"
},
{
"status": "unaffected",
"version": "6.19.12",
"versionType": "semver",
"lessThanOrEqual": "6.19.*"
},
{
"status": "unaffected",
"version": "7.0",
"versionType": "original_commit_for_fix",
"lessThanOrEqual": "*"
}
],
"programFiles": [
"drivers/s390/crypto/zcrypt_msgtype6.c"
],
"defaultStatus": "affected"
}
]- Related CVEs
- CVE-2026-31746
Source reference:
/cveMetadata/cveId
Publisher severity
No explicit severity was provided.
- Event
- #46244 · Revision 1
- Added to Heist Feed
- Publisher date