{
  "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-2026-98433",
    "sourceURL": "https://www.cve.org/CVERecord?id=CVE-2026-98433",
    "idYear": 2026,
    "status": "PUBLISHED",
    "publishedAt": "2026-10-18T14:38:18.296Z",
    "updatedAt": "2026-10-19T09:19:29.371Z",
    "importedAt": "2026-10-24T01:58:41.756Z",
    "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: PPC: Book3S HV: fix secure device page leak on uv_page_in() failure",
      "summary": "In the Linux kernel, the following vulnerability has been resolved:\n\nKVM: PPC: Book3S HV: fix secure device page leak on uv_page_in() failure\n\nIn kvmppc_svm_page_in(), if uv_page_in() fails after\nkvmppc_uvmem_get_page() has succeeded, the secure device page is never\nreleased.  kvmppc_uvmem_get_page() sets a bit in kvmppc_uvmem_bitmap,\nallocates a kvmppc_uvmem_page_pvt struct, marks the GFN as\nKVMPPC_GFN_UVMEM_PFN, and calls zone_device_page_init() which sets\nrefcount=1 and locks the page.  The subsequent goto out_finalize skips\nthe *mig.dst assignment, so migrate_vma_finalize() is a no-op for the\npage, and none of those resources are ever reclaimed.\n\nEach occurrence permanently consumes one entry from the firmware-bounded\nsecure memory pool (kvmppc_uvmem_bitmap), leaks pvt, and leaves the GFN\nmarked as secure — making it unusable for the lifetime of the VM.\n\nThe twin __kvmppc_svm_page_out() already handles the analogous uv_page_out()\nfailure correctly with unlock_page(dpage); __free_page(dpage).  Apply\nthe same pattern here: unlock_page() followed by put_page(), which\nchains through free_zone_device_folio() into kvmppc_uvmem_folio_free()\nto clear the bitmap bit, free pvt, and reset the GFN state.\n\nReachable whenever uv_page_in() returns an error (e.g. UV pool\nexhaustion) on any POWER9/10 + Ultravisor/PEF system.",
      "affected": [
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "unaffected",
          "versions": [
            {
              "version": "ca9f4942670c37407bb109090eaf776ce2ccc54c",
              "status": "affected",
              "versionType": "git",
              "lessThan": "ed2f2ff63cb7e71204096e765c6d02c3b6974b95"
            },
            {
              "version": "ca9f4942670c37407bb109090eaf776ce2ccc54c",
              "status": "affected",
              "versionType": "git",
              "lessThan": "8f3b7746874b39fc20e0363c9076c7787d4765ba"
            },
            {
              "version": "ca9f4942670c37407bb109090eaf776ce2ccc54c",
              "status": "affected",
              "versionType": "git",
              "lessThan": "a933d7024359e2e566b07903d1294b84f90482ae"
            },
            {
              "version": "ca9f4942670c37407bb109090eaf776ce2ccc54c",
              "status": "affected",
              "versionType": "git",
              "lessThan": "c41088b2765af1e97e7bb05f906ae1823eca0388"
            },
            {
              "version": "ca9f4942670c37407bb109090eaf776ce2ccc54c",
              "status": "affected",
              "versionType": "git",
              "lessThan": "f3d4b2fc30c97cf8e6f8b880d2de9c17ecac7f5b"
            },
            {
              "version": "ca9f4942670c37407bb109090eaf776ce2ccc54c",
              "status": "affected",
              "versionType": "git",
              "lessThan": "dfb84274932737e338ff5eb27f34b4c8ecb01b50"
            },
            {
              "version": "ca9f4942670c37407bb109090eaf776ce2ccc54c",
              "status": "affected",
              "versionType": "git",
              "lessThan": "fcbff8008b0e08cd53b611bd0ff7e01f5b962f80"
            },
            {
              "version": "ca9f4942670c37407bb109090eaf776ce2ccc54c",
              "status": "affected",
              "versionType": "git",
              "lessThan": "0a416ee20bcccddf91ca5b63696a23b9d11d73aa"
            }
          ]
        },
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "affected",
          "versions": [
            {
              "version": "5.5",
              "status": "affected"
            },
            {
              "version": "0",
              "status": "unaffected",
              "versionType": "semver",
              "lessThan": "5.5"
            },
            {
              "version": "5.10.271",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "5.10.*"
            },
            {
              "version": "5.15.222",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "5.15.*"
            },
            {
              "version": "6.1.189",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.1.*"
            },
            {
              "version": "6.6.158",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.6.*"
            },
            {
              "version": "6.12.112",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.12.*"
            },
            {
              "version": "6.18.54",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.18.*"
            },
            {
              "version": "7.2.8",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "7.2.*"
            },
            {
              "version": "7.3",
              "status": "unaffected",
              "versionType": "original_commit_for_fix",
              "lessThanOrEqual": "*"
            }
          ]
        }
      ]
    }
  }
}