CVE-2022-50521
Unknown Unknown - Not Provided
BaseFortify

Publication date: 2025-10-07

Last updated on: 2026-03-17

Assigner: kernel.org

Description
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.
CVSS Scores
EPSS Scores
Probability:
Percentile:
Meta Information
Published
2025-10-07
Last Modified
2026-03-17
Generated
2026-06-16
AI Q&A
2025-10-07
EPSS Evaluated
2026-06-14
NVD
CVE-2022-50521
Affected Vendors & Products
Showing 1 associated CPE
Vendor Product Version / Range
linux linux_kernel From 4.15 (inc) to 4.19.270 (inc)
Helpful Resources
Exploitability
CWE
CWE Icon
KEV
KEV Icon
CWE ID Description
CWE-401 The product does not sufficiently track and release allocated memory after it has been used, making the memory unavailable for reallocation and reuse.
Attack-Flow Graph
AI Quick Actions
Instant insights powered by AI
Executive Summary

This vulnerability is a memory leak in the Linux kernel's platform/x86 mxm-wmi component. Specifically, the ACPI buffer memory returned by the wmi_evaluate_method() function is not freed after the call, causing a memory leak. The fix involves passing NULL to wmi_evaluate_method() to avoid using and leaking the ACPI buffer memory.

Impact Analysis

The memory leak caused by this vulnerability can lead to increased memory usage over time, potentially degrading system performance or causing instability if the leaked memory accumulates significantly.

Chat Assistant
Ask questions about this CVE
Hi! I’m here to help you understand CVE-2022-50521. Ask me anything about the vulnerability, its impact, or mitigation strategies.
0/70
EPSS Chart