CVE-2022-50521

MEDIUM EPSS 4.0%
Published Oct 7, 20258mo ago · Modified Jun 17, 20261w ago
5.5 CVSS 3.1
Medium
Find Similar
Published Oct 7, 2025 8mo ago
Last Modified Jun 17, 2026 1w ago

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 Details

Base Score
5.5
Exploitability
1.8
Impact
3.6
Vector string
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Attack Vector Local
Attack Complexity Low
Privileges Required Low
User Interaction None
Scope Unchanged
Confidentiality None
Integrity None
Availability High

Threat Intelligence

EPSS Exploit Probability
4.0% percentile
Exploit & Patch Status
No Known Exploit
Patch Available

Weaknesses 1

CWE-401

Affected Products 7

VendorProductVersionRange
linuxlinux_kernel*≥3.0  –  <4.14.303
linuxlinux_kernel*≥4.15  –  <4.19.270
linuxlinux_kernel*≥4.20  –  <5.4.229
linuxlinux_kernel*≥5.5  –  <5.10.163
linuxlinux_kernel*≥5.11  –  <5.15.86
linuxlinux_kernel*≥5.16  –  <6.0.16
linuxlinux_kernel*≥6.1  –  <6.1.2

References 8

  • git.kernel.org https://git.kernel.org/stable/c/14bb4bde3b7b2584734b13747b345caeeb41bea3
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/17cd8c46cbec4e6ad593fb9159928b8e7608c11a
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/379e7794c5e7485193d25d73614fbbd1e1387f6f
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/3cf81501356c9e898ad94b2369ffc805f83f7d7b
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/50ac517d6f5348b276f1f663799cf85dce521518
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/5b0f81b0808235967868e01336c976e840217108
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/727cc0147f5066e359aca65cc6cc5e6d64cc15d8
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/87426ce3bd57ad414b6e2436434ef8128986a9a5
    Patch

Remediation

  • git.kernel.org https://git.kernel.org/stable/c/14bb4bde3b7b2584734b13747b345caeeb41bea3
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/17cd8c46cbec4e6ad593fb9159928b8e7608c11a
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/379e7794c5e7485193d25d73614fbbd1e1387f6f
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/3cf81501356c9e898ad94b2369ffc805f83f7d7b
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/50ac517d6f5348b276f1f663799cf85dce521518
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/5b0f81b0808235967868e01336c976e840217108
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/727cc0147f5066e359aca65cc6cc5e6d64cc15d8
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/87426ce3bd57ad414b6e2436434ef8128986a9a5
    Patch