{
  "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-2026-89588",
    "sourceURL": "https://www.cve.org/CVERecord?id=CVE-2026-89588",
    "idYear": 2026,
    "status": "PUBLISHED",
    "publishedAt": "2026-09-11T19:44:52.842Z",
    "updatedAt": "2026-10-19T08:49:20.945Z",
    "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": "ACPI: APEI: GHES: fix ARM section length accounting after header",
      "summary": "In the Linux kernel, the following vulnerability has been resolved:\n\nACPI: APEI: GHES: fix ARM section length accounting after header\n\nIn ghes_handle_arm_hw_error(), after skipping the cper_sec_proc_arm\nheader with (err + 1), the remaining length was reduced by sizeof(err)\n(pointer size) instead of sizeof(*err) (structure size).\n\nThat overestimates the bytes left for cper_arm_err_info records and can\nlet the parser read past the CPER section when err_info_num is large\nenough relative to error_data_length.\n\nUse sizeof(*err) so the length accounting matches the pointer advance\nand the earlier sizeof(*err) size check.",
      "affected": [
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "unaffected",
          "versions": [
            {
              "version": "242c652849d979d0133c315a42d9acea0ff88390",
              "status": "affected",
              "versionType": "git",
              "lessThan": "5ff385e9403e87ae33f65b8c38698d3b1e92cfde"
            },
            {
              "version": "136093ba4161e0080088abff48273f6830a47766",
              "status": "affected",
              "versionType": "git",
              "lessThan": "452eb28e03015abec6d4bf6488ee567706ade4e1"
            },
            {
              "version": "87880af2d24e62a84ed19943dbdd524f097172f2",
              "status": "affected",
              "versionType": "git",
              "lessThan": "b48b613073c3d652cb1823c15d16f7067cf4cee4"
            },
            {
              "version": "87880af2d24e62a84ed19943dbdd524f097172f2",
              "status": "affected",
              "versionType": "git",
              "lessThan": "903308ea40adf0577d82eab69882faf8836326ce"
            },
            {
              "version": "db103b8bd3a4aca69b1b5fe8831a6ed75ac4b3bd",
              "status": "affected",
              "versionType": "git"
            },
            {
              "version": "6.12.75",
              "status": "affected",
              "versionType": "semver",
              "lessThan": "6.12.109"
            },
            {
              "version": "6.18.16",
              "status": "affected",
              "versionType": "semver",
              "lessThan": "6.18.50"
            },
            {
              "version": "6.19.6",
              "status": "affected",
              "versionType": "semver",
              "lessThan": "6.20"
            }
          ]
        },
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "affected",
          "versions": [
            {
              "version": "7.0",
              "status": "affected"
            },
            {
              "version": "0",
              "status": "unaffected",
              "versionType": "semver",
              "lessThan": "7.0"
            },
            {
              "version": "6.12.109",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.12.*"
            },
            {
              "version": "6.18.50",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.18.*"
            },
            {
              "version": "7.2.4",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "7.2.*"
            },
            {
              "version": "7.3",
              "status": "unaffected",
              "versionType": "original_commit_for_fix",
              "lessThanOrEqual": "*"
            }
          ]
        }
      ]
    }
  }
}