UnratedFix available
platform/x86: mxm-wmi: fix memleak in mxm_wmi_call_mx[ds|mx]()
Type: advisorySources: OSV
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.
- Products
- Kernel
- Affected versions
- Not specified
- Fixed versions
- 4.14.303, 4.19.270, 5.10.163, 5.15.86, 5.4.229, 6.0.16, 6.1.2
- CVEs
- CVE-2022-50521
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 3 Nov 2026, 17:36 UTC · Revision 1
Source evidence
platform/x86: mxm-wmi: fix memleak in mxm_wmi_call_mx[ds|mx]()
core-osv · Original sourcePublished 7 Oct 2025, 15:19 UTC
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.
osv:CVE-2022-50521
Kernel
Fixed versions: 4.14.303, 4.19.270, 5.4.229, 5.10.163, 5.15.86, 6.0.16, 6.1.2
Complete source record
{
"id": "4676f9a08634b811fbb202b59075b7889e4efebabcdba0cac44222678bc42585",
"url": "https://osv.dev/vulnerability/CVE-2022-50521",
"method": "structured",
"payload": {
"kind": "advisory",
"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.",
"evidence": "osv:CVE-2022-50521",
"products": [
{
"name": {
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"severity": "unknown",
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"aliases": [
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"package": {
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"ecosystem": "Linux"
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"database_specific": {
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],
"modified": "2026-10-28T02:30:30.919815191Z",
"provider": "osv",
"references": [
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"https://git.kernel.org/stable/c/17cd8c46cbec4e6ad593fb9159928b8e7608c11a",
"https://git.kernel.org/stable/c/379e7794c5e7485193d25d73614fbbd1e1387f6f",
"https://git.kernel.org/stable/c/3cf81501356c9e898ad94b2369ffc805f83f7d7b",
"https://git.kernel.org/stable/c/50ac517d6f5348b276f1f663799cf85dce521518",
"https://git.kernel.org/stable/c/5b0f81b0808235967868e01336c976e840217108",
"https://git.kernel.org/stable/c/727cc0147f5066e359aca65cc6cc5e6d64cc15d8",
"https://git.kernel.org/stable/c/87426ce3bd57ad414b6e2436434ef8128986a9a5",
"https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/50xxx/CVE-2022-50521.json",
"https://nvd.nist.gov/vuln/detail/CVE-2022-50521",
"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
],
"provider_metadata": {
"cna_assigner": "Linux",
"osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/50xxx/CVE-2022-50521.json"
}
},
"related_cves": [
{
"value": "CVE-2022-50521",
"evidence": "/id"
}
],
"security_relevant": true,
"severity_evidence": null
},
"source_id": "core-osv",
"document_id": 497885,
"published_at": "2025-10-07T15:19:15.213+00:00"
}