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Vulnerability · Published Oct 7, 2025 · Assigned by Linux

CVE-2022-50521platform/x86: mxm-wmi: fix memleak in mxm_wmi_call_mx[ds|mx]()

Medium 5.5

In plain English

A medium-severity security flaw in Linux from Linux. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 5% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS NVD)5.5Medium
Exploit odds (30 days)0.2%top 94.8% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known

Official 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.

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
Debian:12linux6.1.4-1DEBIAN-CVE-2022-50521
Debian:13linux6.1.4-1DEBIAN-CVE-2022-50521
Debian:14linux6.1.4-1DEBIAN-CVE-2022-50521
Ubuntu:22.04:LTSlinux5.15.0-69.76UBUNTU-CVE-2022-50521
Ubuntu:22.04:LTSlinux-allwinner-5.19no fix listedUBUNTU-CVE-2022-50521
Ubuntu:22.04:LTSlinux-aws5.15.0-1033.37UBUNTU-CVE-2022-50521
Ubuntu:22.04:LTSlinux-aws-5.19no fix listedUBUNTU-CVE-2022-50521
Ubuntu:22.04:LTSlinux-aws-6.2no fix listedUBUNTU-CVE-2022-50521
Ubuntu:22.04:LTSlinux-aws-6.5no fix listedUBUNTU-CVE-2022-50521
Ubuntu:22.04:LTSlinux-azure5.15.0-1035.42UBUNTU-CVE-2022-50521
Ubuntu:22.04:LTSlinux-azure-5.19no fix listedUBUNTU-CVE-2022-50521
Ubuntu:24.04:LTSlinux-azure-6.11no fix listedUBUNTU-CVE-2022-50521
Ubuntu:22.04:LTSlinux-azure-6.2no fix listedUBUNTU-CVE-2022-50521
Ubuntu:22.04:LTSlinux-azure-6.5no fix listedUBUNTU-CVE-2022-50521
Ubuntu:22.04:LTSlinux-azure-fde5.15.0-1035.42.1UBUNTU-CVE-2022-50521
Ubuntu:22.04:LTSlinux-azure-fde-5.19no fix listedUBUNTU-CVE-2022-50521
Ubuntu:22.04:LTSlinux-azure-fde-6.2no fix listedUBUNTU-CVE-2022-50521
Ubuntu:22.04:LTSlinux-gcp5.15.0-1031.38UBUNTU-CVE-2022-50521
Ubuntu:22.04:LTSlinux-gcp-5.19no fix listedUBUNTU-CVE-2022-50521
Ubuntu:24.04:LTSlinux-gcp-6.11no fix listedUBUNTU-CVE-2022-50521
Ubuntu:22.04:LTSlinux-gcp-6.2no fix listedUBUNTU-CVE-2022-50521
Ubuntu:22.04:LTSlinux-gcp-6.5no fix listedUBUNTU-CVE-2022-50521
Ubuntu:22.04:LTSlinux-gke5.15.0-1030.35UBUNTU-CVE-2022-50521
Ubuntu:22.04:LTSlinux-gkeop5.15.0-1017.22UBUNTU-CVE-2022-50521
Ubuntu:22.04:LTSlinux-hwe-5.19no fix listedUBUNTU-CVE-2022-50521
Ubuntu:24.04:LTSlinux-hwe-6.11no fix listedUBUNTU-CVE-2022-50521
Ubuntu:22.04:LTSlinux-hwe-6.2no fix listedUBUNTU-CVE-2022-50521
Ubuntu:22.04:LTSlinux-hwe-6.5no fix listedUBUNTU-CVE-2022-50521
Ubuntu:22.04:LTSlinux-ibm5.15.0-1027.30UBUNTU-CVE-2022-50521
Ubuntu:24.04:LTSlinux-intelno fix listedUBUNTU-CVE-2022-50521
Ubuntu:22.04:LTSlinux-intel-iot-realtimeno fix listedUBUNTU-CVE-2022-50521
Ubuntu:22.04:LTSlinux-intel-iotg5.15.0-1027.32UBUNTU-CVE-2022-50521
Ubuntu:22.04:LTSlinux-kvm5.15.0-1030.35UBUNTU-CVE-2022-50521
Ubuntu:22.04:LTSlinux-lowlatency5.15.0-69.76UBUNTU-CVE-2022-50521
Ubuntu:22.04:LTSlinux-lowlatency-hwe-5.19no fix listedUBUNTU-CVE-2022-50521
Ubuntu:24.04:LTSlinux-lowlatency-hwe-6.11no fix listedUBUNTU-CVE-2022-50521
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.2no fix listedUBUNTU-CVE-2022-50521
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.5no fix listedUBUNTU-CVE-2022-50521
Ubuntu:22.04:LTSlinux-nvidia5.15.0-1023.23UBUNTU-CVE-2022-50521
Ubuntu:22.04:LTSlinux-nvidia-6.2no fix listedUBUNTU-CVE-2022-50521
Ubuntu:22.04:LTSlinux-nvidia-6.5no fix listedUBUNTU-CVE-2022-50521
Ubuntu:22.04:LTSlinux-oem-5.17no fix listedUBUNTU-CVE-2022-50521
Ubuntu:22.04:LTSlinux-oem-6.0no fix listedUBUNTU-CVE-2022-50521
Ubuntu:22.04:LTSlinux-oem-6.1no fix listedUBUNTU-CVE-2022-50521
Ubuntu:24.04:LTSlinux-oem-6.11no fix listedUBUNTU-CVE-2022-50521
Ubuntu:22.04:LTSlinux-oem-6.5no fix listedUBUNTU-CVE-2022-50521
Ubuntu:24.04:LTSlinux-oem-6.8no fix listedUBUNTU-CVE-2022-50521
Ubuntu:22.04:LTSlinux-oracle5.15.0-1032.38UBUNTU-CVE-2022-50521
Ubuntu:22.04:LTSlinux-oracle-6.5no fix listedUBUNTU-CVE-2022-50521
Ubuntu:22.04:LTSlinux-raspi5.15.0-1026.28UBUNTU-CVE-2022-50521
Ubuntu:24.04:LTSlinux-raspi-realtimeno fix listedUBUNTU-CVE-2022-50521
Ubuntu:22.04:LTSlinux-realtimeno fix listedUBUNTU-CVE-2022-50521
Ubuntu:24.04:LTSlinux-realtimeno fix listedUBUNTU-CVE-2022-50521
Ubuntu:22.04:LTSlinux-riscvno fix listedUBUNTU-CVE-2022-50521
Ubuntu:24.04:LTSlinux-riscvno fix listedUBUNTU-CVE-2022-50521
Ubuntu:22.04:LTSlinux-riscv-5.19no fix listedUBUNTU-CVE-2022-50521
Ubuntu:22.04:LTSlinux-riscv-6.5no fix listedUBUNTU-CVE-2022-50521
Ubuntu:22.04:LTSlinux-starfive-5.19no fix listedUBUNTU-CVE-2022-50521
Ubuntu:22.04:LTSlinux-starfive-6.2no fix listedUBUNTU-CVE-2022-50521
Ubuntu:22.04:LTSlinux-starfive-6.5no fix listedUBUNTU-CVE-2022-50521

Affected products (as reported)

VendorProductVersions
Linux Linux 99b38b4acc0d7dbbab443273577cff60080fcfad – before 50ac517d6f5348b276f1f663799cf85dce52151899b38b4acc0d7dbbab443273577cff60080fcfad – before 5b0f81b0808235967868e01336c976e84021710899b38b4acc0d7dbbab443273577cff60080fcfad – before 14bb4bde3b7b2584734b13747b345caeeb41bea399b38b4acc0d7dbbab443273577cff60080fcfad – before 17cd8c46cbec4e6ad593fb9159928b8e7608c11a99b38b4acc0d7dbbab443273577cff60080fcfad – before 3cf81501356c9e898ad94b2369ffc805f83f7d7b99b38b4acc0d7dbbab443273577cff60080fcfad – before 379e7794c5e7485193d25d73614fbbd1e1387f6f99b38b4acc0d7dbbab443273577cff60080fcfad – before 87426ce3bd57ad414b6e2436434ef8128986a9a599b38b4acc0d7dbbab443273577cff60080fcfad – before 727cc0147f5066e359aca65cc6cc5e6d64cc15d8
Linux Linux 3.0

References