{
  "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-2026-80584",
    "sourceURL": "https://www.cve.org/CVERecord?id=CVE-2026-80584",
    "idYear": 2026,
    "status": "PUBLISHED",
    "publishedAt": "2026-08-26T14:37:40.302Z",
    "updatedAt": "2026-10-16T19:26:28.329Z",
    "importedAt": "2026-10-24T01:58:30.346Z",
    "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/qeth: validate user buffer length in SNMP and ARP query ioctls",
      "summary": "In the Linux kernel, the following vulnerability has been resolved:\n\ns390/qeth: validate user buffer length in SNMP and ARP query ioctls\n\nqeth_snmp_command() and qeth_l3_arp_query() allocate a buffer sized by\na user-supplied length (udata_len) without checking a lower bound, then\nset udata_offset to a fixed non-zero value and pass both to a reply\ncallback. The callback bounds-checks the copy with\n\n        if ((udata_len - udata_offset) < len)\n\nBoth fields are u32, so a udata_len smaller than udata_offset makes the\nsubtraction wrap and the check pass, and the following memcpy() writes\npast the allocation. A udata_len of 0 also yields ZERO_SIZE_PTR from\nkzalloc(), which the existing NULL check does not catch.\n\nReject buffers smaller than udata_offset before allocating, so the\ncallback subtraction can no longer underflow.",
      "affected": [
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "unaffected",
          "versions": [
            {
              "version": "4a71df50047f0db65ea09b1be155852e81a45eba",
              "status": "affected",
              "versionType": "git",
              "lessThan": "9d00eeb2d27f4cc817c5e408760226d43f811ec6"
            },
            {
              "version": "4a71df50047f0db65ea09b1be155852e81a45eba",
              "status": "affected",
              "versionType": "git",
              "lessThan": "46443eaddebd84c51940857b11787229be169dec"
            },
            {
              "version": "4a71df50047f0db65ea09b1be155852e81a45eba",
              "status": "affected",
              "versionType": "git",
              "lessThan": "91935843f9396a9e45253e2c0d4337ca1371754b"
            },
            {
              "version": "4a71df50047f0db65ea09b1be155852e81a45eba",
              "status": "affected",
              "versionType": "git",
              "lessThan": "cc423f4105fe145b33e1d7cad34245a798358f73"
            },
            {
              "version": "4a71df50047f0db65ea09b1be155852e81a45eba",
              "status": "affected",
              "versionType": "git",
              "lessThan": "3083818e67bcd656965797fbac9a3d6c1d44f78a"
            },
            {
              "version": "4a71df50047f0db65ea09b1be155852e81a45eba",
              "status": "affected",
              "versionType": "git",
              "lessThan": "a3083647747942ea32faf14560d6397ff3068046"
            },
            {
              "version": "4a71df50047f0db65ea09b1be155852e81a45eba",
              "status": "affected",
              "versionType": "git",
              "lessThan": "75fb3151513d7d9f77a8f9545418279b119c06b8"
            },
            {
              "version": "4a71df50047f0db65ea09b1be155852e81a45eba",
              "status": "affected",
              "versionType": "git",
              "lessThan": "d141f087b1af656f055d7c5793a3e87817ba0bbe"
            }
          ]
        },
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "affected",
          "versions": [
            {
              "version": "2.6.26",
              "status": "affected"
            },
            {
              "version": "0",
              "status": "unaffected",
              "versionType": "semver",
              "lessThan": "2.6.26"
            },
            {
              "version": "5.10.266",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "5.10.*"
            },
            {
              "version": "5.15.217",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "5.15.*"
            },
            {
              "version": "6.1.184",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.1.*"
            },
            {
              "version": "6.6.153",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.6.*"
            },
            {
              "version": "6.12.105",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.12.*"
            },
            {
              "version": "6.18.46",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.18.*"
            },
            {
              "version": "7.1.10",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "7.1.*"
            },
            {
              "version": "7.2",
              "status": "unaffected",
              "versionType": "original_commit_for_fix",
              "lessThanOrEqual": "*"
            }
          ]
        }
      ]
    }
  }
}