{
  "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-2026-31483",
    "sourceURL": "https://www.cve.org/CVERecord?id=CVE-2026-31483",
    "idYear": 2026,
    "status": "PUBLISHED",
    "publishedAt": "2026-04-22T13:54:09.561Z",
    "updatedAt": "2026-05-11T22:09:36.271Z",
    "importedAt": "2026-10-24T01:58:02.025Z",
    "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/syscalls: Add spectre boundary for syscall dispatch table",
      "summary": "In the Linux kernel, the following vulnerability has been resolved:\n\ns390/syscalls: Add spectre boundary for syscall dispatch table\n\nThe s390 syscall number is directly controlled by userspace, but does\nnot have an array_index_nospec() boundary to prevent access past the\nsyscall function pointer tables.",
      "affected": [
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "unaffected",
          "versions": [
            {
              "version": "56e62a73702836017564eaacd5212e4d0fa1c01d",
              "status": "affected",
              "versionType": "git",
              "lessThan": "3c3b97064764899c39a0abbd35a6caa031e70333"
            },
            {
              "version": "56e62a73702836017564eaacd5212e4d0fa1c01d",
              "status": "affected",
              "versionType": "git",
              "lessThan": "1cb9c7bc9025c637564fabc7fcc3c9343949e310"
            },
            {
              "version": "56e62a73702836017564eaacd5212e4d0fa1c01d",
              "status": "affected",
              "versionType": "git",
              "lessThan": "7a5260fbc6e79a1595328ec5c6aa3f937504a1f0"
            },
            {
              "version": "56e62a73702836017564eaacd5212e4d0fa1c01d",
              "status": "affected",
              "versionType": "git",
              "lessThan": "f8c444b918d639e1f9a621ee20fe481c1d10dfc4"
            },
            {
              "version": "56e62a73702836017564eaacd5212e4d0fa1c01d",
              "status": "affected",
              "versionType": "git",
              "lessThan": "87776f02449e3bded95b2ccbd6b012e9ae64e6f3"
            },
            {
              "version": "56e62a73702836017564eaacd5212e4d0fa1c01d",
              "status": "affected",
              "versionType": "git",
              "lessThan": "4d05dd18d867d58c6952a3bc260d244899da7256"
            },
            {
              "version": "56e62a73702836017564eaacd5212e4d0fa1c01d",
              "status": "affected",
              "versionType": "git",
              "lessThan": "48b8814e25d073dd84daf990a879a820bad2bcbd"
            }
          ]
        },
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "affected",
          "versions": [
            {
              "version": "5.12",
              "status": "affected"
            },
            {
              "version": "0",
              "status": "unaffected",
              "versionType": "semver",
              "lessThan": "5.12"
            },
            {
              "version": "5.15.203",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "5.15.*"
            },
            {
              "version": "6.1.168",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.1.*"
            },
            {
              "version": "6.6.131",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.6.*"
            },
            {
              "version": "6.12.80",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.12.*"
            },
            {
              "version": "6.18.21",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.18.*"
            },
            {
              "version": "6.19.11",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.19.*"
            },
            {
              "version": "7.0",
              "status": "unaffected",
              "versionType": "original_commit_for_fix",
              "lessThanOrEqual": "*"
            }
          ]
        }
      ]
    }
  }
}