CVE-2026-98221 (GCVE-0-2026-98221)
Vulnerability from cvelistv5
Published
2026-10-06 08:44
Modified
2026-10-19 09:15
Severity ?
Summary
In the Linux kernel, the following vulnerability has been resolved: KEYS: trusted: Fix tpm2_load_cmd() boundary check tpm2_load_cmd() does boundary checks against the ASN.1 size i.e., payload->blob_len. Address this by passing the decoded blob size to tpm2_load_cmd(), and use it for the boundary checks.
References
Impacted products
Vendor Product Version
Linux Linux Version: f2219745250f388edacabe6cca73654131c67d0a
Version: f2219745250f388edacabe6cca73654131c67d0a
Version: f2219745250f388edacabe6cca73654131c67d0a
Version: f2219745250f388edacabe6cca73654131c67d0a
Version: f2219745250f388edacabe6cca73654131c67d0a
Version: f2219745250f388edacabe6cca73654131c67d0a
Version: f2219745250f388edacabe6cca73654131c67d0a
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{
  "containers": {
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          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "security/keys/trusted-keys/trusted_tpm2.c"
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          ]
        },
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          "programFiles": [
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          "vendor": "Linux",
          "versions": [
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              "status": "affected",
              "version": "5.13"
            },
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              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
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              "status": "unaffected",
              "version": "5.15.222",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.1.*",
              "status": "unaffected",
              "version": "6.1.189",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.6.*",
              "status": "unaffected",
              "version": "6.6.158",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.12.*",
              "status": "unaffected",
              "version": "6.12.112",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.18.*",
              "status": "unaffected",
              "version": "6.18.54",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.2.*",
              "status": "unaffected",
              "version": "7.2.8",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "7.3",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
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                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.15.222",
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                  "vulnerable": true
                },
                {
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              "negate": false,
              "operator": "OR"
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      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nKEYS: trusted: Fix tpm2_load_cmd() boundary check\n\ntpm2_load_cmd() does boundary checks against the ASN.1 size i.e.,\npayload-\u003eblob_len. Address this by passing the decoded blob size to\ntpm2_load_cmd(), and use it for the boundary checks."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-10-19T09:15:53.271Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/cc86227fea28aed86c1fb52a884560b4440da198"
        },
        {
          "url": "https://git.kernel.org/stable/c/b020b447338872440142fe8a57350a483da86b7a"
        },
        {
          "url": "https://git.kernel.org/stable/c/3fd487c69ad3161e358c33c170bab0cf02a071b7"
        },
        {
          "url": "https://git.kernel.org/stable/c/5afa57ea91481c6c49f194b0f5a5c4d96a4d7348"
        },
        {
          "url": "https://git.kernel.org/stable/c/9ddbc5f4bb498aff8096a5231574858a4bffee4f"
        },
        {
          "url": "https://git.kernel.org/stable/c/134825dfc971fbf2b1d0f58f0b3bce8332ad0afb"
        },
        {
          "url": "https://git.kernel.org/stable/c/114f00d738f15dd8c7318369edcdc53dd6d08763"
        }
      ],
      "title": "KEYS: trusted: Fix tpm2_load_cmd() boundary check",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2026-98221",
    "datePublished": "2026-10-06T08:44:56.728Z",
    "dateReserved": "2026-09-25T10:25:14.327Z",
    "dateUpdated": "2026-10-19T09:15:53.271Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}


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