{
  "schemaVersion": 1,
  "attribution": [
    {
      "source": "CISA Known Exploited Vulnerabilities",
      "url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog",
      "licence": "US government work"
    },
    {
      "source": "GitHub Advisory Database",
      "url": "https://github.com/advisories",
      "licence": "CC BY 4.0"
    },
    {
      "source": "Have I Been Pwned",
      "url": "https://haveibeenpwned.com/",
      "licence": "CC BY 4.0"
    },
    {
      "source": "CVE Program (CVE records)",
      "url": "https://www.cve.org/Legal/TermsOfUse",
      "licence": "CVE Terms of Use",
      "notice": "Copyright © 1999-2026, The MITRE Corporation. CVE is a trademark and the CVE logo is a registered trademark of The MITRE Corporation.",
      "terms": "CVE Usage: MITRE hereby grants you a perpetual, worldwide, non-exclusive, no-charge, royalty-free, irrevocable copyright license to reproduce, prepare derivative works of, publicly display, publicly perform, sublicense, and distribute Common Vulnerabilities and Exposures (CVE™). Any copy you make for such purposes is authorized provided that you reproduce MITRE's copyright designation and this license in any such copy."
    },
    {
      "source": "FIRST EPSS",
      "url": "https://www.first.org/epss/",
      "licence": "free to use; FIRST requests attribution"
    }
  ],
  "record": {
    "id": "CVE-2026-89924",
    "sourceURL": "https://www.cve.org/CVERecord?id=CVE-2026-89924",
    "idYear": 2026,
    "status": "PUBLISHED",
    "publishedAt": "2026-09-16T10:32:17.442Z",
    "updatedAt": "2026-10-19T08:54:59.186Z",
    "importedAt": "2026-10-24T01:58:35.090Z",
    "snapshot": {
      "id": "cve_2026-10-24_midnight_baseline",
      "at": "2026-10-24T00:00:00.000Z",
      "source": "https://github.com/CVEProject/cvelistV5/releases/tag/cve_2026-10-24_0100Z"
    },
    "facts": {
      "title": "KVM: s390: Fix old_data leak in guest debug error path",
      "summary": "In the Linux kernel, the following vulnerability has been resolved:\n\nKVM: s390: Fix old_data leak in guest debug error path\n\n__import_wp_info() allocates a per-watchpoint old_data buffer to back up\nthe original guest memory contents. If a later watchpoint of the same\nKVM_SET_GUEST_DEBUG request fails to import, kvm_s390_import_bp_data()\njumps to the error label, which frees the wp_info array but not the\nold_data buffers of the entries that were imported successfully. Up to\nMAX_BP_COUNT - 1 buffers of up to MAX_WP_SIZE bytes are leaked per failed\nrequest, and the request can be repeated.\n\nCreate error handling for cleaning up all created old_data memory\nareas.",
      "affected": [
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "unaffected",
          "versions": [
            {
              "version": "27291e2165b6de70c476b7b675308113edd69a60",
              "status": "affected",
              "versionType": "git",
              "lessThan": "124c81ee610e1fbdd93d4399f88d9e28ba97a941"
            },
            {
              "version": "27291e2165b6de70c476b7b675308113edd69a60",
              "status": "affected",
              "versionType": "git",
              "lessThan": "e5ae7816e5ad145618f7fd568a0e8a94dd9f81f4"
            },
            {
              "version": "27291e2165b6de70c476b7b675308113edd69a60",
              "status": "affected",
              "versionType": "git",
              "lessThan": "c85d402553987777cc4742751437ea5dcbf98a7b"
            },
            {
              "version": "27291e2165b6de70c476b7b675308113edd69a60",
              "status": "affected",
              "versionType": "git",
              "lessThan": "5fbf319137735252eefa507193c9a619af5b7457"
            },
            {
              "version": "27291e2165b6de70c476b7b675308113edd69a60",
              "status": "affected",
              "versionType": "git",
              "lessThan": "4048d0a252163084794be3e37995b872c5178913"
            },
            {
              "version": "27291e2165b6de70c476b7b675308113edd69a60",
              "status": "affected",
              "versionType": "git",
              "lessThan": "f55e4d415d95342d5753e528e05a1e8623992c3f"
            },
            {
              "version": "27291e2165b6de70c476b7b675308113edd69a60",
              "status": "affected",
              "versionType": "git",
              "lessThan": "46cb8a273e2f853f89a78b59dbdff8787b6e1c86"
            },
            {
              "version": "27291e2165b6de70c476b7b675308113edd69a60",
              "status": "affected",
              "versionType": "git",
              "lessThan": "aa9c8e8baf1e765fa65b93212522c636f25d846f"
            }
          ]
        },
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "affected",
          "versions": [
            {
              "version": "3.16",
              "status": "affected"
            },
            {
              "version": "0",
              "status": "unaffected",
              "versionType": "semver",
              "lessThan": "3.16"
            },
            {
              "version": "5.10.270",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "5.10.*"
            },
            {
              "version": "5.15.221",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "5.15.*"
            },
            {
              "version": "6.1.188",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.1.*"
            },
            {
              "version": "6.6.157",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.6.*"
            },
            {
              "version": "6.12.110",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.12.*"
            },
            {
              "version": "6.18.51",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.18.*"
            },
            {
              "version": "7.2.5",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "7.2.*"
            },
            {
              "version": "7.3",
              "status": "unaffected",
              "versionType": "original_commit_for_fix",
              "lessThanOrEqual": "*"
            }
          ]
        }
      ]
    }
  }
}