{
  "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-2026-31628",
    "sourceURL": "https://www.cve.org/CVERecord?id=CVE-2026-31628",
    "idYear": 2026,
    "status": "PUBLISHED",
    "publishedAt": "2026-04-24T14:42:49.181Z",
    "updatedAt": "2026-10-15T01:17:19.544Z",
    "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": "x86/CPU: Fix FPDSS on Zen1",
      "summary": "In the Linux kernel, the following vulnerability has been resolved:\n\nx86/CPU: Fix FPDSS on Zen1\n\nZen1's hardware divider can leave, under certain circumstances, partial\nresults from previous operations.  Those results can be leaked by\nanother, attacker thread.\n\nFix that with a chicken bit.",
      "affected": [
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "unaffected",
          "versions": [
            {
              "version": "f7f3dc00f61261cdc9ccd8b886f21bc4dffd6fd9",
              "status": "affected",
              "versionType": "git",
              "lessThan": "ed7a3a246309ccc807238f1b4f159ee6d37ff9c4"
            },
            {
              "version": "f7f3dc00f61261cdc9ccd8b886f21bc4dffd6fd9",
              "status": "affected",
              "versionType": "git",
              "lessThan": "0548529af20e68c6552817834b766646dd3bd7a7"
            },
            {
              "version": "f7f3dc00f61261cdc9ccd8b886f21bc4dffd6fd9",
              "status": "affected",
              "versionType": "git",
              "lessThan": "1272cfedf4cd1019ddf583917a99b62f2d3645bb"
            },
            {
              "version": "f7f3dc00f61261cdc9ccd8b886f21bc4dffd6fd9",
              "status": "affected",
              "versionType": "git",
              "lessThan": "91f02726b2203b71545713ecb7fb006e60a2d66f"
            },
            {
              "version": "f7f3dc00f61261cdc9ccd8b886f21bc4dffd6fd9",
              "status": "affected",
              "versionType": "git",
              "lessThan": "b731aca06387b195058a9f6449a03b62efa1bd10"
            },
            {
              "version": "f7f3dc00f61261cdc9ccd8b886f21bc4dffd6fd9",
              "status": "affected",
              "versionType": "git",
              "lessThan": "ad17f07e95e6e8505e2153e5b391f0d27eacce25"
            },
            {
              "version": "f7f3dc00f61261cdc9ccd8b886f21bc4dffd6fd9",
              "status": "affected",
              "versionType": "git",
              "lessThan": "e6af5286efe5a56128b34032572c9ce9ebeccda3"
            },
            {
              "version": "f7f3dc00f61261cdc9ccd8b886f21bc4dffd6fd9",
              "status": "affected",
              "versionType": "git",
              "lessThan": "546785c719418c6166834a47e372a88f5f7ae893"
            },
            {
              "version": "f7f3dc00f61261cdc9ccd8b886f21bc4dffd6fd9",
              "status": "affected",
              "versionType": "git",
              "lessThan": "e55d98e7756135f32150b9b8f75d580d0d4b2dd3"
            },
            {
              "version": "5abd1583e06b3963e5c9d915760367de86808b78",
              "status": "affected",
              "versionType": "git"
            },
            {
              "version": "4ba461d426490b6ed7e8298c4d3b7a13aa5d2686",
              "status": "affected",
              "versionType": "git"
            },
            {
              "version": "5a63725cd18fcee2af6ec46ccb856b64ad3077b4",
              "status": "affected",
              "versionType": "git"
            },
            {
              "version": "3.16.58",
              "status": "affected",
              "versionType": "semver",
              "lessThan": "3.17"
            },
            {
              "version": "4.4.144",
              "status": "affected",
              "versionType": "semver",
              "lessThan": "4.5"
            },
            {
              "version": "4.9.102",
              "status": "affected",
              "versionType": "semver",
              "lessThan": "4.10"
            }
          ]
        },
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "affected",
          "versions": [
            {
              "version": "4.14",
              "status": "affected"
            },
            {
              "version": "0",
              "status": "unaffected",
              "versionType": "semver",
              "lessThan": "4.14"
            },
            {
              "version": "5.10.253",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "5.10.*"
            },
            {
              "version": "5.15.203",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "5.15.*"
            },
            {
              "version": "6.1.169",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.1.*"
            },
            {
              "version": "6.6.135",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.6.*"
            },
            {
              "version": "6.12.82",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.12.*"
            },
            {
              "version": "6.18.23",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.18.*"
            },
            {
              "version": "6.19.13",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.19.*"
            },
            {
              "version": "7.0.1",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "7.0.*"
            },
            {
              "version": "7.1",
              "status": "unaffected",
              "versionType": "original_commit_for_fix",
              "lessThanOrEqual": "*"
            }
          ]
        }
      ]
    }
  }
}