tpm: Cap the number of PCR banks

{
  "id": "18e851974c28607fb5469a9b41cd8d501ebeecbebf28411ad743590c3329530c",
  "url": "https://osv.dev/vulnerability/CVE-2025-71077",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "tpm: Cap the number of PCR banks",
    "summary": "In the Linux kernel, the following vulnerability has been resolved: tpm: Cap the number of PCR banks tpm2_get_pcr_allocation() does not cap any upper limit for the number of banks. Cap the limit to eight banks so that out of bounds values coming from external I/O cause on only limited harm.",
    "evidence": "osv:CVE-2025-71077",
    "products": [
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    "severity": "unknown",
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      "modified": "2026-10-28T02:30:37.969633754Z",
      "provider": "osv",
      "references": [
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        "https://git.kernel.org/stable/c/858344bc9210bea9ab2bdc7e9e331ba84c164e50",
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        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/71xxx/CVE-2025-71077.json",
        "https://nvd.nist.gov/vuln/detail/CVE-2025-71077",
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    "security_relevant": true,
    "severity_evidence": null
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  "source_id": "core-osv",
  "document_id": 505416,
  "published_at": "2026-01-13T15:31:29.435+00:00"
}