CVE-2022-50521 (GCVE-0-2022-50521)

Vulnerability from cvelistv5 – Published: 2025-10-07 15:19 – Updated: 2026-05-11 19:21
VLAI
Title
platform/x86: mxm-wmi: fix memleak in mxm_wmi_call_mx[ds|mx]()
Summary
In the Linux kernel, the following vulnerability has been resolved: platform/x86: mxm-wmi: fix memleak in mxm_wmi_call_mx[ds|mx]() The ACPI buffer memory (out.pointer) returned by wmi_evaluate_method() is not freed after the call, so it leads to memory leak. The method results in ACPI buffer is not used, so just pass NULL to wmi_evaluate_method() which fixes the memory leak.
Severity
5.5 (Medium)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Assigner
References
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: 99b38b4acc0d7dbbab443273577cff60080fcfad , < 50ac517d6f5348b276f1f663799cf85dce521518 (git)
Affected: 99b38b4acc0d7dbbab443273577cff60080fcfad , < 5b0f81b0808235967868e01336c976e840217108 (git)
Affected: 99b38b4acc0d7dbbab443273577cff60080fcfad , < 14bb4bde3b7b2584734b13747b345caeeb41bea3 (git)
Affected: 99b38b4acc0d7dbbab443273577cff60080fcfad , < 17cd8c46cbec4e6ad593fb9159928b8e7608c11a (git)
Affected: 99b38b4acc0d7dbbab443273577cff60080fcfad , < 3cf81501356c9e898ad94b2369ffc805f83f7d7b (git)
Affected: 99b38b4acc0d7dbbab443273577cff60080fcfad , < 379e7794c5e7485193d25d73614fbbd1e1387f6f (git)
Affected: 99b38b4acc0d7dbbab443273577cff60080fcfad , < 87426ce3bd57ad414b6e2436434ef8128986a9a5 (git)
Affected: 99b38b4acc0d7dbbab443273577cff60080fcfad , < 727cc0147f5066e359aca65cc6cc5e6d64cc15d8 (git)
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Linux Linux Affected: 3.0
Unaffected: 0 , < 3.0 (semver)
Unaffected: 4.14.303 , ≤ 4.14.* (semver)
Unaffected: 4.19.270 , ≤ 4.19.* (semver)
Unaffected: 5.4.229 , ≤ 5.4.* (semver)
Unaffected: 5.10.163 , ≤ 5.10.* (semver)
Unaffected: 5.15.86 , ≤ 5.15.* (semver)
Unaffected: 6.0.16 , ≤ 6.0.* (semver)
Unaffected: 6.1.2 , ≤ 6.1.* (semver)
Unaffected: 6.2 , ≤ * (original_commit_for_fix)
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      "cve": "CVE-2022-50521",
      "id": "CVE-2022-50521",
      "initial_release_date": "2022-01-01T00:00:00+00:00",
      "product_status:known_affected": "184",
      "product_status:known_not_affected": "90",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "kernel: platform/x86: mxm-wmi: fix memleak in mxm_wmi_call_mx[ds|mx]()",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2022/cve-2022-50521.json",
      "version": "3"
    },
    "suse_vex": {
      "aggregate_severity": "moderate",
      "current_release_date": "2026-08-29T02:20:25Z",
      "cve": "CVE-2022-50521",
      "id": "CVE-2022-50521",
      "initial_release_date": "2025-10-08T23:39:22Z",
      "product_status:known_affected": "354",
      "product_status:known_not_affected": "395",
      "product_status:recommended": "196",
      "source": "SUSE CSAF VEX",
      "status": "interim",
      "title": "SUSE CVE CVE-2022-50521",
      "url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2022-50521.json",
      "version": "31"
    }
  }
}



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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

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.



Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.