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vuln-cve/data/2026/31xxx/CVE-2026-31746.json
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{
"dataType": "CVE_RECORD",
"dataVersion": "5.2",
"cveMetadata": {
"cveId": "CVE-2026-31746",
"assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"state": "PUBLISHED",
"assignerShortName": "Linux",
"dateReserved": "2026-03-09T15:48:24.138Z",
"datePublished": "2026-05-01T14:14:40.196Z",
"dateUpdated": "2026-10-21T12:39:47.494Z"
},
"containers": {
"cna": {
"providerMetadata": {
"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"shortName": "Linux",
"dateUpdated": "2026-10-21T12:39:47.494Z"
},
"descriptions": [
{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\ns390/zcrypt: Fix memory leak with CCA cards used as accelerator\n\nTests showed that there is a memory leak if CCA cards are used as\naccelerator for clear key RSA requests (ME and CRT). With the last\nrework for the memory allocation the AP messages are allocated by\nap_init_apmsg() but for some reason on two places (ME and CRT) the\nolder allocation was still in place. So the first allocation simple\nwas never freed."
}
],
"affected": [
{
"product": "Linux",
"vendor": "Linux",
"defaultStatus": "unaffected",
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"programFiles": [
"drivers/s390/crypto/zcrypt_msgtype6.c"
],
"versions": [
{
"version": "919b3885c293057061af32dfeb0e20bba4f7a378",
"lessThan": "1650268579e1113b30402dbcca4dba6589a0fccf",
"status": "affected",
"versionType": "git"
},
{
"version": "57db62a130ce69e6f3a870cf1119d8f860391f97",
"lessThan": "586222c37d4027dbf60a604fbe820184fee7c1c9",
"status": "affected",
"versionType": "git"
},
{
"version": "57db62a130ce69e6f3a870cf1119d8f860391f97",
"lessThan": "ace37bfec3822033e59fff390f2ff99fc96ebe4f",
"status": "affected",
"versionType": "git"
},
{
"version": "57db62a130ce69e6f3a870cf1119d8f860391f97",
"lessThan": "c8d46f17c2fc7d25c18e60c008928aecab26184d",
"status": "affected",
"versionType": "git"
}
]
},
{
"product": "Linux",
"vendor": "Linux",
"defaultStatus": "affected",
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"programFiles": [
"drivers/s390/crypto/zcrypt_msgtype6.c"
],
"versions": [
{
"version": "6.16",
"status": "affected"
},
{
"version": "0",
"lessThan": "6.16",
"status": "unaffected",
"versionType": "semver"
},
{
"version": "6.18.22",
"lessThanOrEqual": "6.18.*",
"status": "unaffected",
"versionType": "semver"
},
{
"version": "6.19.12",
"lessThanOrEqual": "6.19.*",
"status": "unaffected",
"versionType": "semver"
},
{
"version": "7.0",
"lessThanOrEqual": "*",
"status": "unaffected",
"versionType": "original_commit_for_fix"
}
]
}
],
"cpeApplicability": [
{
"nodes": [
{
"operator": "OR",
"negate": false,
"cpeMatch": [
{
"vulnerable": true,
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionStartIncluding": "6.16",
"versionEndExcluding": "6.18.22"
},
{
"vulnerable": true,
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionStartIncluding": "6.16",
"versionEndExcluding": "6.19.12"
},
{
"vulnerable": true,
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionStartIncluding": "6.16",
"versionEndExcluding": "7.0"
}
]
}
]
}
],
"references": [
{
"url": "https://git.kernel.org/stable/c/1650268579e1113b30402dbcca4dba6589a0fccf"
},
{
"url": "https://git.kernel.org/stable/c/586222c37d4027dbf60a604fbe820184fee7c1c9"
},
{
"url": "https://git.kernel.org/stable/c/ace37bfec3822033e59fff390f2ff99fc96ebe4f"
},
{
"url": "https://git.kernel.org/stable/c/c8d46f17c2fc7d25c18e60c008928aecab26184d"
}
],
"title": "s390/zcrypt: Fix memory leak with CCA cards used as accelerator",
"x_generator": {
"engine": "bippy-1.2.0"
}
}
}
}