{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/s390/crypto/zcrypt_msgtype6.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "1650268579e1113b30402dbcca4dba6589a0fccf",
              "status": "affected",
              "version": "919b3885c293057061af32dfeb0e20bba4f7a378",
              "versionType": "git"
            },
            {
              "lessThan": "586222c37d4027dbf60a604fbe820184fee7c1c9",
              "status": "affected",
              "version": "57db62a130ce69e6f3a870cf1119d8f860391f97",
              "versionType": "git"
            },
            {
              "lessThan": "ace37bfec3822033e59fff390f2ff99fc96ebe4f",
              "status": "affected",
              "version": "57db62a130ce69e6f3a870cf1119d8f860391f97",
              "versionType": "git"
            },
            {
              "lessThan": "c8d46f17c2fc7d25c18e60c008928aecab26184d",
              "status": "affected",
              "version": "57db62a130ce69e6f3a870cf1119d8f860391f97",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/s390/crypto/zcrypt_msgtype6.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "6.16"
            },
            {
              "lessThan": "6.16",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.18.*",
              "status": "unaffected",
              "version": "6.18.22",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.19.*",
              "status": "unaffected",
              "version": "6.19.12",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "7.0",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.18.22",
                  "versionStartIncluding": "6.16",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.19.12",
                  "versionStartIncluding": "6.16",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "7.0",
                  "versionStartIncluding": "6.16",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "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."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-10-21T12:39:47.494Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "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"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2026-31746",
    "datePublished": "2026-05-01T14:14:40.196Z",
    "dateReserved": "2026-03-09T15:48:24.138Z",
    "dateUpdated": "2026-10-21T12:39:47.494Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}