{
  "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-2026-98631",
    "sourceURL": "https://www.cve.org/CVERecord?id=CVE-2026-98631",
    "idYear": 2026,
    "status": "PUBLISHED",
    "publishedAt": "2026-10-18T15:19:53.529Z",
    "updatedAt": "2026-10-19T09:22:59.147Z",
    "importedAt": "2026-10-24T01:58:41.756Z",
    "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": "xsk: Use a 32-bit compare in xsk_map_gen_lookup",
      "summary": "In the Linux kernel, the following vulnerability has been resolved:\n\nxsk: Use a 32-bit compare in xsk_map_gen_lookup\n\nxsk_map_gen_lookup() loads a u32 key and compares it with max_entries\nusing BPF_JMP_IMM. BPF immediates are sign-extended to 64 bits, so a\nmax_entries value of 0x80000000 or higher becomes a threshold larger\nthan every zero-extended 32-bit key. An out-of-range index then skips\nthe bounds check and the generated lookup reads past xsk_map[].\n\nCompare with BPF_JMP32_IMM so the check stays in 32-bit unsigned range.",
      "affected": [
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "unaffected",
          "versions": [
            {
              "version": "e65650f291ee72fc578d6346080fc4699204ef2c",
              "status": "affected",
              "versionType": "git",
              "lessThan": "c6d5c582d55a8f229d75e98d62eaa065b0deb18d"
            },
            {
              "version": "e65650f291ee72fc578d6346080fc4699204ef2c",
              "status": "affected",
              "versionType": "git",
              "lessThan": "227ec890559e922e235eb543646e3bf0bd8269b0"
            },
            {
              "version": "e65650f291ee72fc578d6346080fc4699204ef2c",
              "status": "affected",
              "versionType": "git",
              "lessThan": "11d9be35c1f4233798e99be98bc474f83a254c6c"
            },
            {
              "version": "e65650f291ee72fc578d6346080fc4699204ef2c",
              "status": "affected",
              "versionType": "git",
              "lessThan": "123f90f394ca404ab8796a7c8072ff7fa5b65a9c"
            },
            {
              "version": "e65650f291ee72fc578d6346080fc4699204ef2c",
              "status": "affected",
              "versionType": "git",
              "lessThan": "36461e58f88a1b723f86693f437ac12e60ff4363"
            },
            {
              "version": "e65650f291ee72fc578d6346080fc4699204ef2c",
              "status": "affected",
              "versionType": "git",
              "lessThan": "b5c0cff0c5331582ab01c4c423731453a8381acc"
            },
            {
              "version": "e65650f291ee72fc578d6346080fc4699204ef2c",
              "status": "affected",
              "versionType": "git",
              "lessThan": "3c1e0a4bc156b8d5c5772dbc76b9ea74dce5ca24"
            },
            {
              "version": "e65650f291ee72fc578d6346080fc4699204ef2c",
              "status": "affected",
              "versionType": "git",
              "lessThan": "70504de0bb627848667207bec7ccfd647deb8814"
            }
          ]
        },
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "affected",
          "versions": [
            {
              "version": "5.5",
              "status": "affected"
            },
            {
              "version": "0",
              "status": "unaffected",
              "versionType": "semver",
              "lessThan": "5.5"
            },
            {
              "version": "5.10.271",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "5.10.*"
            },
            {
              "version": "5.15.222",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "5.15.*"
            },
            {
              "version": "6.1.189",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.1.*"
            },
            {
              "version": "6.6.158",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.6.*"
            },
            {
              "version": "6.12.112",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.12.*"
            },
            {
              "version": "6.18.55",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.18.*"
            },
            {
              "version": "7.2.9",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "7.2.*"
            },
            {
              "version": "7.3",
              "status": "unaffected",
              "versionType": "original_commit_for_fix",
              "lessThanOrEqual": "*"
            }
          ]
        }
      ]
    }
  }
}