{
  "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-2022-49286",
    "sourceURL": "https://www.cve.org/CVERecord?id=CVE-2022-49286",
    "idYear": 2022,
    "status": "PUBLISHED",
    "publishedAt": "2025-02-26T01:56:25.566Z",
    "updatedAt": "2026-08-12T23:58:17.827Z",
    "importedAt": "2026-10-24T01:56:49.724Z",
    "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": "tpm: use try_get_ops() in tpm-space.c",
      "summary": "In the Linux kernel, the following vulnerability has been resolved:\n\ntpm: use try_get_ops() in tpm-space.c\n\nAs part of the series conversion to remove nested TPM operations:\n\nhttps://lore.kernel.org/all/20190205224723.19671-1-jarkko.sakkinen@linux.intel.com/\n\nexposure of the chip->tpm_mutex was removed from much of the upper\nlevel code.  In this conversion, tpm2_del_space() was missed.  This\ndidn't matter much because it's usually called closely after a\nconverted operation, so there's only a very tiny race window where the\nchip can be removed before the space flushing is done which causes a\nNULL deref on the mutex.  However, there are reports of this window\nbeing hit in practice, so fix this by converting tpm2_del_space() to\nuse tpm_try_get_ops(), which performs all the teardown checks before\nacquring the mutex.",
      "affected": [
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "unaffected",
          "versions": [
            {
              "version": "4d57856a21ed2abe33412e0526cc84bdcf67ea08",
              "status": "affected",
              "versionType": "git",
              "lessThan": "5b1d2561a03e534064b51c50c774657833d3d2cf"
            },
            {
              "version": "4d57856a21ed2abe33412e0526cc84bdcf67ea08",
              "status": "affected",
              "versionType": "git",
              "lessThan": "95193d12f10a8a088843b25e0f5fe1d83ec6b079"
            },
            {
              "version": "4d57856a21ed2abe33412e0526cc84bdcf67ea08",
              "status": "affected",
              "versionType": "git",
              "lessThan": "476ddd23f818fb94cf86fb5617f3bb9a7c92113d"
            },
            {
              "version": "4d57856a21ed2abe33412e0526cc84bdcf67ea08",
              "status": "affected",
              "versionType": "git",
              "lessThan": "eda1662cce964c8a65bb86321f8d9cfa6e9ceaab"
            },
            {
              "version": "4d57856a21ed2abe33412e0526cc84bdcf67ea08",
              "status": "affected",
              "versionType": "git",
              "lessThan": "ba84f9a48366dcc3cdef978599433efe101dd5bd"
            },
            {
              "version": "4d57856a21ed2abe33412e0526cc84bdcf67ea08",
              "status": "affected",
              "versionType": "git",
              "lessThan": "fb5abce6b2bb5cb3d628aaa63fa821da8c4600f9"
            }
          ]
        },
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "affected",
          "versions": [
            {
              "version": "4.12",
              "status": "affected"
            },
            {
              "version": "0",
              "status": "unaffected",
              "versionType": "semver",
              "lessThan": "4.12"
            },
            {
              "version": "5.4.188",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "5.4.*"
            },
            {
              "version": "5.10.109",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "5.10.*"
            },
            {
              "version": "5.15.32",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "5.15.*"
            },
            {
              "version": "5.16.18",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "5.16.*"
            },
            {
              "version": "5.17.1",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "5.17.*"
            },
            {
              "version": "5.18",
              "status": "unaffected",
              "versionType": "original_commit_for_fix",
              "lessThanOrEqual": "*"
            }
          ]
        }
      ]
    }
  }
}