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FKIE_CVE-2022-50562

Vulnerability from fkie_nvd - Published: 2025-10-22 14:15 - Updated: 2026-06-17 05:23
Severity
Summary
In the Linux kernel, the following vulnerability has been resolved: tpm: acpi: Call acpi_put_table() to fix memory leak The start and length of the event log area are obtained from TPM2 or TCPA table, so we call acpi_get_table() to get the ACPI information, but the acpi_get_table() should be coupled with acpi_put_table() to release the ACPI memory, add the acpi_put_table() properly to fix the memory leak. While we are at it, remove the redundant empty line at the end of the tpm_read_log_acpi().
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/638cd298dfebce46919cbd6cf1884701215f506d
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/694a3d66f493afd77c704c6de91d9be4d6e004e4
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/8740a12ca2e2959531ad253bac99ada338b33d80
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/8ddc48068ac85740d3d5f9f3b0b323e733a35b33
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/bf31e3f8077af539feaf4e9bbf82e8eb51e7e5a8
Impacted products
Vendor Product Version
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/char/tpm/eventlog/acpi.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "8ddc48068ac85740d3d5f9f3b0b323e733a35b33",
              "status": "affected",
              "version": "0bfb23746052168620c5b52f49d8a47c3bb022fa",
              "versionType": "git"
            },
            {
              "lessThan": "638cd298dfebce46919cbd6cf1884701215f506d",
              "status": "affected",
              "version": "0bfb23746052168620c5b52f49d8a47c3bb022fa",
              "versionType": "git"
            },
            {
              "lessThan": "694a3d66f493afd77c704c6de91d9be4d6e004e4",
              "status": "affected",
              "version": "0bfb23746052168620c5b52f49d8a47c3bb022fa",
              "versionType": "git"
            },
            {
              "lessThan": "bf31e3f8077af539feaf4e9bbf82e8eb51e7e5a8",
              "status": "affected",
              "version": "0bfb23746052168620c5b52f49d8a47c3bb022fa",
              "versionType": "git"
            },
            {
              "lessThan": "8740a12ca2e2959531ad253bac99ada338b33d80",
              "status": "affected",
              "version": "0bfb23746052168620c5b52f49d8a47c3bb022fa",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/char/tpm/eventlog/acpi.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "4.18"
            },
            {
              "lessThan": "4.18",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.10.*",
              "status": "unaffected",
              "version": "5.10.163",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.15.*",
              "status": "unaffected",
              "version": "5.15.87",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.0.*",
              "status": "unaffected",
              "version": "6.0.17",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.1.*",
              "status": "unaffected",
              "version": "6.1.3",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.2",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ntpm: acpi: Call acpi_put_table() to fix memory leak\n\nThe start and length of the event log area are obtained from\nTPM2 or TCPA table, so we call acpi_get_table() to get the\nACPI information, but the acpi_get_table() should be coupled with\nacpi_put_table() to release the ACPI memory, add the acpi_put_table()\nproperly to fix the memory leak.\n\nWhile we are at it, remove the redundant empty line at the\nend of the tpm_read_log_acpi()."
    }
  ],
  "id": "CVE-2022-50562",
  "lastModified": "2026-06-17T05:23:47.810",
  "metrics": {},
  "published": "2025-10-22T14:15:40.953",
  "references": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/638cd298dfebce46919cbd6cf1884701215f506d"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/694a3d66f493afd77c704c6de91d9be4d6e004e4"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/8740a12ca2e2959531ad253bac99ada338b33d80"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/8ddc48068ac85740d3d5f9f3b0b323e733a35b33"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/bf31e3f8077af539feaf4e9bbf82e8eb51e7e5a8"
    }
  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Deferred"
}



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