Vulnerability-Lookup

GHSA-J3G5-WX45-HJ5X

Vulnerability from github – Published: 2025-10-22 15:31 – Updated: 2025-10-22 15:31

Details

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().

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{
  "affected": [],
  "aliases": [
    "CVE-2022-50562"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-10-22T14:15:40Z",
    "severity": null
  },
  "details": "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": "GHSA-j3g5-wx45-hj5x",
  "modified": "2025-10-22T15:31:09Z",
  "published": "2025-10-22T15:31:09Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2022-50562"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/638cd298dfebce46919cbd6cf1884701215f506d"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/694a3d66f493afd77c704c6de91d9be4d6e004e4"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/8740a12ca2e2959531ad253bac99ada338b33d80"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/8ddc48068ac85740d3d5f9f3b0b323e733a35b33"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/bf31e3f8077af539feaf4e9bbf82e8eb51e7e5a8"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}

CVE-2022-50562 (GCVE-0-2022-50562)

Vulnerability from cvelistv5 – Published: 2025-10-22 13:23 – Updated: 2026-05-11 19:21

Title

tpm: acpi: Call acpi_put_table() to fix memory leak

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().

Severity

No CVSS data available.

Assigner

Linux mitre root

References

5 references

URL	Tags
https://git.kernel.org/stable/c/8ddc48068ac85740d…
https://git.kernel.org/stable/c/638cd298dfebce469…
https://git.kernel.org/stable/c/694a3d66f493afd77…
https://git.kernel.org/stable/c/bf31e3f8077af539f…
https://git.kernel.org/stable/c/8740a12ca2e295953…

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: 0bfb23746052168620c5b52f49d8a47c3bb022fa , < 8ddc48068ac85740d3d5f9f3b0b323e733a35b33 (git) Affected: 0bfb23746052168620c5b52f49d8a47c3bb022fa , < 638cd298dfebce46919cbd6cf1884701215f506d (git) Affected: 0bfb23746052168620c5b52f49d8a47c3bb022fa , < 694a3d66f493afd77c704c6de91d9be4d6e004e4 (git) Affected: 0bfb23746052168620c5b52f49d8a47c3bb022fa , < bf31e3f8077af539feaf4e9bbf82e8eb51e7e5a8 (git) Affected: 0bfb23746052168620c5b52f49d8a47c3bb022fa , < 8740a12ca2e2959531ad253bac99ada338b33d80 (git)
Linux	Linux	Affected: 4.18 Unaffected: 0 , < 4.18 (semver) Unaffected: 5.10.163 , ≤ 5.10.* (semver) Unaffected: 5.15.87 , ≤ 5.15.* (semver) Unaffected: 6.0.17 , ≤ 6.0.* (semver) Unaffected: 6.1.3 , ≤ 6.1.* (semver) Unaffected: 6.2 , ≤ * (original_commit_for_fix)

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{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/char/tpm/eventlog/acpi.c"
          ],
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            },
            {
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              "versionType": "git"
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            }
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        },
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          "defaultStatus": "affected",
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          ],
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          "versions": [
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              "status": "unaffected",
              "version": "0",
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            {
              "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"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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        }
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      "providerMetadata": {
        "dateUpdated": "2026-05-11T19:21:49.466Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
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        },
        {
          "url": "https://git.kernel.org/stable/c/8740a12ca2e2959531ad253bac99ada338b33d80"
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    "assignerShortName": "Linux",
    "cveId": "CVE-2022-50562",
    "datePublished": "2025-10-22T13:23:21.421Z",
    "dateReserved": "2025-10-22T13:20:23.759Z",
    "dateUpdated": "2026-05-11T19:21:49.466Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.

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