{
  "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-2026-89929",
    "sourceURL": "https://www.cve.org/CVERecord?id=CVE-2026-89929",
    "idYear": 2026,
    "status": "PUBLISHED",
    "publishedAt": "2026-09-16T10:32:20.855Z",
    "updatedAt": "2026-10-21T12:49:11.793Z",
    "importedAt": "2026-10-24T01:58:35.090Z",
    "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": "KVM: nVM: Ensure INVVPID is emulated on the correct physical CPU",
      "summary": "In the Linux kernel, the following vulnerability has been resolved:\n\nKVM: nVM: Ensure INVVPID is emulated on the correct physical CPU\n\nWhen emulating INVVPID, KVM executes INVVPID on the physical CPU using\nvpid02 (instead of the L1 assigned VPID), after doing some validations\non the operands. However, it is possible that the physical CPU KVM\nexecutes INVVPID on is different from the CPU L2 is running on.\n\nFor example, in the following scenario:\n- L2 runs on CPU #1 and exits to L1 (vmx->nested.vmcs02.cpu=1)\n- L1 migrates to CPU #2 and executes INVVPID\n- KVM executes INVVPID on CPU #2\n- L1 migrates back to CPU #1 and runs L2 (vmx->nested.vmcs02.cpu=1)\n\nThe TLB entries on CPU #1 are never invalidated, because INVVPID was\nexecuted on CPU #2, and vmcs02 never ran on a different pCPU (i.e.\nvmx_vcpu_load_vmcs() will *not* request KVM_REQ_TLB_FLUSH).\n\nEnsure that INVVPID is being executed on the same pCPU that L2 last ran\non, and if not, fallback to clearing last_vpid=0 to trigger a full VPID\nflush on the next nested VM-Enter (as KVM will detect L1 using a\ndifferent VPID for L2). If L2 ends up running on a different pCPU, KVM\nwill flush the TLB anyway through vmx_vcpu_load_vmcs().",
      "affected": [
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "unaffected",
          "versions": [
            {
              "version": "5c614b3583e7b6dab0c86356fa36c2bcbb8322a0",
              "status": "affected",
              "versionType": "git",
              "lessThan": "1759a565a25c814ced9281a708749c71fa69d6fe"
            },
            {
              "version": "5c614b3583e7b6dab0c86356fa36c2bcbb8322a0",
              "status": "affected",
              "versionType": "git",
              "lessThan": "d03e721801ac54b9fdf05668aa0c069f07913b68"
            },
            {
              "version": "5c614b3583e7b6dab0c86356fa36c2bcbb8322a0",
              "status": "affected",
              "versionType": "git",
              "lessThan": "27bdeb5fd19046ffba9ff234e92fe553eb2efb30"
            },
            {
              "version": "5c614b3583e7b6dab0c86356fa36c2bcbb8322a0",
              "status": "affected",
              "versionType": "git",
              "lessThan": "9941850e8adf164d005dbd3774c4b79e91a3cb8e"
            },
            {
              "version": "5c614b3583e7b6dab0c86356fa36c2bcbb8322a0",
              "status": "affected",
              "versionType": "git",
              "lessThan": "6d00e67326d831e6e610933a3800712f4ffe6ec1"
            }
          ]
        },
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "affected",
          "versions": [
            {
              "version": "4.4",
              "status": "affected"
            },
            {
              "version": "0",
              "status": "unaffected",
              "versionType": "semver",
              "lessThan": "4.4"
            },
            {
              "version": "6.6.160",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.6.*"
            },
            {
              "version": "6.12.110",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.12.*"
            },
            {
              "version": "6.18.51",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.18.*"
            },
            {
              "version": "7.2.5",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "7.2.*"
            },
            {
              "version": "7.3",
              "status": "unaffected",
              "versionType": "original_commit_for_fix",
              "lessThanOrEqual": "*"
            }
          ]
        }
      ]
    }
  }
}