{
  "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-2025-40253",
    "sourceURL": "https://www.cve.org/CVERecord?id=CVE-2025-40253",
    "idYear": 2025,
    "status": "PUBLISHED",
    "publishedAt": "2025-12-04T16:08:15.340Z",
    "updatedAt": "2026-10-15T22:02:41.932Z",
    "importedAt": "2026-10-24T01:57:34.152Z",
    "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": "s390/ctcm: Fix double-kfree",
      "summary": "In the Linux kernel, the following vulnerability has been resolved:\n\ns390/ctcm: Fix double-kfree\n\nThe function 'mpc_rcvd_sweep_req(mpcginfo)' is called conditionally\nfrom function 'ctcmpc_unpack_skb'. It frees passed mpcginfo.\nAfter that a call to function 'kfree' in function 'ctcmpc_unpack_skb'\nfrees it again.\n\nRemove 'kfree' call in function 'mpc_rcvd_sweep_req(mpcginfo)'.\n\nBug detected by the clang static analyzer.",
      "affected": [
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "unaffected",
          "versions": [
            {
              "version": "467ddbbe7e749d558f13e640f50f546149c930b3",
              "status": "affected",
              "versionType": "git",
              "lessThan": "06f1dd1de0d33dbfbd2e1fc9fc57d8895f730de2"
            },
            {
              "version": "4d3c6d741816539b57fa1110c3f765a8c176d7b4",
              "status": "affected",
              "versionType": "git",
              "lessThan": "6bf8ccaabce8cebb6cb1f255c93d0acdfe95c17a"
            },
            {
              "version": "2bd57101c3ecf3f8c0da1d26c2b6ad511adc6d50",
              "status": "affected",
              "versionType": "git",
              "lessThan": "7616e2eee679746d526c7f5befd4eedb995935b5"
            },
            {
              "version": "0c0b20587b9f25a2ad14db7f80ebe49bdf29920a",
              "status": "affected",
              "versionType": "git",
              "lessThan": "43096dab8cc60fc39133205fd149a54d3acebea8"
            },
            {
              "version": "0c0b20587b9f25a2ad14db7f80ebe49bdf29920a",
              "status": "affected",
              "versionType": "git",
              "lessThan": "3b177b2ded563df16f6d5920671ffcfe5915d472"
            },
            {
              "version": "0c0b20587b9f25a2ad14db7f80ebe49bdf29920a",
              "status": "affected",
              "versionType": "git",
              "lessThan": "b9dbfb1b5699f9f1e4991f96741bdf9047147589"
            },
            {
              "version": "0c0b20587b9f25a2ad14db7f80ebe49bdf29920a",
              "status": "affected",
              "versionType": "git",
              "lessThan": "7ff76f8dc6b550f8d16487bf3cebc278be720b5c"
            },
            {
              "version": "0c0b20587b9f25a2ad14db7f80ebe49bdf29920a",
              "status": "affected",
              "versionType": "git",
              "lessThan": "da02a1824884d6c84c5e5b5ac373b0c9e3288ec2"
            },
            {
              "version": "36933de59f67029e5739a98393891f9b94f27e0f",
              "status": "affected",
              "versionType": "git"
            },
            {
              "version": "d886b4292a1c5b4facdb2dfdc31f0fecc71df898",
              "status": "affected",
              "versionType": "git"
            },
            {
              "version": "4c9ba0fed125deba8416b995b0c274b0804c0c24",
              "status": "affected",
              "versionType": "git"
            },
            {
              "version": "ea0053af5dab4d63a9c44563973fb2f3bfd9eb2b",
              "status": "affected",
              "versionType": "git"
            },
            {
              "version": "5.4.195",
              "status": "affected",
              "versionType": "semver",
              "lessThan": "5.4.302"
            },
            {
              "version": "5.10.117",
              "status": "affected",
              "versionType": "semver",
              "lessThan": "5.10.247"
            },
            {
              "version": "5.15.41",
              "status": "affected",
              "versionType": "semver",
              "lessThan": "5.15.197"
            },
            {
              "version": "4.9.315",
              "status": "affected",
              "versionType": "semver",
              "lessThan": "4.10"
            },
            {
              "version": "4.14.280",
              "status": "affected",
              "versionType": "semver",
              "lessThan": "4.15"
            },
            {
              "version": "4.19.244",
              "status": "affected",
              "versionType": "semver",
              "lessThan": "4.20"
            },
            {
              "version": "5.17.9",
              "status": "affected",
              "versionType": "semver",
              "lessThan": "5.18"
            }
          ]
        },
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "affected",
          "versions": [
            {
              "version": "5.18",
              "status": "affected"
            },
            {
              "version": "0",
              "status": "unaffected",
              "versionType": "semver",
              "lessThan": "5.18"
            },
            {
              "version": "5.4.302",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "5.4.*"
            },
            {
              "version": "5.10.247",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "5.10.*"
            },
            {
              "version": "5.15.197",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "5.15.*"
            },
            {
              "version": "6.1.159",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.1.*"
            },
            {
              "version": "6.6.118",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.6.*"
            },
            {
              "version": "6.12.60",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.12.*"
            },
            {
              "version": "6.17.10",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.17.*"
            },
            {
              "version": "6.18",
              "status": "unaffected",
              "versionType": "original_commit_for_fix",
              "lessThanOrEqual": "*"
            }
          ]
        }
      ]
    }
  }
}