{
  "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-2026-31482",
    "sourceURL": "https://www.cve.org/CVERecord?id=CVE-2026-31482",
    "idYear": 2026,
    "status": "PUBLISHED",
    "publishedAt": "2026-04-22T13:54:08.888Z",
    "updatedAt": "2026-05-11T22:09:35.182Z",
    "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/entry: Scrub r12 register on kernel entry",
      "summary": "In the Linux kernel, the following vulnerability has been resolved:\n\ns390/entry: Scrub r12 register on kernel entry\n\nBefore commit f33f2d4c7c80 (\"s390/bp: remove TIF_ISOLATE_BP\"),\nall entry handlers loaded r12 with the current task pointer\n(lg %r12,__LC_CURRENT) for use by the BPENTER/BPEXIT macros. That\ncommit removed TIF_ISOLATE_BP, dropping both the branch prediction\nmacros and the r12 load, but did not add r12 to the register clearing\nsequence.\n\nAdd the missing xgr %r12,%r12 to make the register scrub consistent\nacross all entry points.",
      "affected": [
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "unaffected",
          "versions": [
            {
              "version": "f33f2d4c7c80c641f6ca3dfe5e7dfe1f91543780",
              "status": "affected",
              "versionType": "git",
              "lessThan": "a58d298a83a3a9b7ca99ded9d60a1e77231159ef"
            },
            {
              "version": "f33f2d4c7c80c641f6ca3dfe5e7dfe1f91543780",
              "status": "affected",
              "versionType": "git",
              "lessThan": "95c899cd791803a5bf7b73e5994fbbe1cc1a9c36"
            },
            {
              "version": "f33f2d4c7c80c641f6ca3dfe5e7dfe1f91543780",
              "status": "affected",
              "versionType": "git",
              "lessThan": "7f4e3233faa8470dd0627bc49b2809f2bfebd909"
            },
            {
              "version": "f33f2d4c7c80c641f6ca3dfe5e7dfe1f91543780",
              "status": "affected",
              "versionType": "git",
              "lessThan": "99a8b420f3f0e162eb9c9c9253929d4d23f9bd30"
            },
            {
              "version": "f33f2d4c7c80c641f6ca3dfe5e7dfe1f91543780",
              "status": "affected",
              "versionType": "git",
              "lessThan": "0738d395aab8fae3b5a3ad3fc640630c91693c27"
            }
          ]
        },
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "affected",
          "versions": [
            {
              "version": "6.4",
              "status": "affected"
            },
            {
              "version": "0",
              "status": "unaffected",
              "versionType": "semver",
              "lessThan": "6.4"
            },
            {
              "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": "*"
            }
          ]
        }
      ]
    }
  }
}