{
  "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-2024-44948",
    "sourceURL": "https://www.cve.org/CVERecord?id=CVE-2024-44948",
    "idYear": 2024,
    "status": "PUBLISHED",
    "publishedAt": "2024-09-04T18:35:48.980Z",
    "updatedAt": "2026-10-15T00:49:24.280Z",
    "importedAt": "2026-10-24T01:57:16.009Z",
    "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/mtrr: Check if fixed MTRRs exist before saving them",
      "summary": "In the Linux kernel, the following vulnerability has been resolved:\n\nx86/mtrr: Check if fixed MTRRs exist before saving them\n\nMTRRs have an obsolete fixed variant for fine grained caching control\nof the 640K-1MB region that uses separate MSRs. This fixed variant has\na separate capability bit in the MTRR capability MSR.\n\nSo far all x86 CPUs which support MTRR have this separate bit set, so it\nwent unnoticed that mtrr_save_state() does not check the capability bit\nbefore accessing the fixed MTRR MSRs.\n\nThough on a CPU that does not support the fixed MTRR capability this\nresults in a #GP.  The #GP itself is harmless because the RDMSR fault is\nhandled gracefully, but results in a WARN_ON().\n\nAdd the missing capability check to prevent this.",
      "affected": [
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "unaffected",
          "versions": [
            {
              "version": "2b1f6278d77c1f2f669346fc2bb48012b5e9495a",
              "status": "affected",
              "versionType": "git",
              "lessThan": "34f36e6ee5bd7eff8b2adcd9fcaef369f752d82e"
            },
            {
              "version": "2b1f6278d77c1f2f669346fc2bb48012b5e9495a",
              "status": "affected",
              "versionType": "git",
              "lessThan": "06c1de44d378ec5439db17bf476507d68589bfe9"
            },
            {
              "version": "2b1f6278d77c1f2f669346fc2bb48012b5e9495a",
              "status": "affected",
              "versionType": "git",
              "lessThan": "450b6b22acdaac67a18eaf5ed498421ffcf10051"
            },
            {
              "version": "2b1f6278d77c1f2f669346fc2bb48012b5e9495a",
              "status": "affected",
              "versionType": "git",
              "lessThan": "ca7d00c5656d1791e28369919e3e10febe9c3b16"
            },
            {
              "version": "2b1f6278d77c1f2f669346fc2bb48012b5e9495a",
              "status": "affected",
              "versionType": "git",
              "lessThan": "8aa79dfb216b865e96ff890bc4ea71650f9bc8d7"
            },
            {
              "version": "2b1f6278d77c1f2f669346fc2bb48012b5e9495a",
              "status": "affected",
              "versionType": "git",
              "lessThan": "8a90d3fc7c24608548d3a750671f9dac21d1a462"
            },
            {
              "version": "2b1f6278d77c1f2f669346fc2bb48012b5e9495a",
              "status": "affected",
              "versionType": "git",
              "lessThan": "388f1c954019f253a8383f7eb733f38d541e10b6"
            },
            {
              "version": "2b1f6278d77c1f2f669346fc2bb48012b5e9495a",
              "status": "affected",
              "versionType": "git",
              "lessThan": "919f18f961c03d6694aa726c514184f2311a4614"
            }
          ]
        },
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "affected",
          "versions": [
            {
              "version": "2.6.22",
              "status": "affected"
            },
            {
              "version": "0",
              "status": "unaffected",
              "versionType": "semver",
              "lessThan": "2.6.22"
            },
            {
              "version": "4.19.320",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "4.19.*"
            },
            {
              "version": "5.4.282",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "5.4.*"
            },
            {
              "version": "5.10.224",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "5.10.*"
            },
            {
              "version": "5.15.165",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "5.15.*"
            },
            {
              "version": "6.1.105",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.1.*"
            },
            {
              "version": "6.6.46",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.6.*"
            },
            {
              "version": "6.10.5",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.10.*"
            },
            {
              "version": "6.11",
              "status": "unaffected",
              "versionType": "original_commit_for_fix",
              "lessThanOrEqual": "*"
            }
          ]
        }
      ]
    }
  }
}