CVE-2022-50521
MEDIUM severity · CVSS 5.5 · CWE-401
5.5CVSS MEDIUM
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.
Impact & exploitability
Attack vectorLocal
Attack complexityLow
Privileges requiredLow
User interactionNone
Confidentiality impactNone
Integrity impactNone
Availability impactHigh
Exploit probability (EPSS)0%
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Affected products we track (1)
Recommendation
Apply the vendor fix in your normal patch cycle. Open any affected product above for its exact safe version.
Official patch: https://git.kernel.org/stable/c/14bb4bde3b7b2584734b13747b345caeeb41bea3 ↗
Additional information
- NVD record
- https://git.kernel.org/stable/c/14bb4bde3b7b2584734b13747b345caeeb41bea3Patch
- https://git.kernel.org/stable/c/17cd8c46cbec4e6ad593fb9159928b8e7608c11aPatch
- https://git.kernel.org/stable/c/379e7794c5e7485193d25d73614fbbd1e1387f6fPatch
- https://git.kernel.org/stable/c/3cf81501356c9e898ad94b2369ffc805f83f7d7bPatch
- https://git.kernel.org/stable/c/50ac517d6f5348b276f1f663799cf85dce521518Patch
- https://git.kernel.org/stable/c/5b0f81b0808235967868e01336c976e840217108Patch
- https://git.kernel.org/stable/c/727cc0147f5066e359aca65cc6cc5e6d64cc15d8Patch
- https://git.kernel.org/stable/c/87426ce3bd57ad414b6e2436434ef8128986a9a5Patch