CVE-2022-49231: rtw88: fix memory overrun and memory leak during hw_scan

Severity: medium (CVSS 5.5 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.2% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2025-02-26 · updated 2026-08-04
Weakness: CWE-401

Description

In the Linux kernel, the following vulnerability has been resolved: rtw88: fix memory overrun and memory leak during hw_scan Previously we allocated less memory than actual required, overwrite to the buffer causes the mm module to complaint and raise access violation faults. Along with potential memory leaks when returned early. Fix these by passing the correct size and proper deinit flow.

Affected products

Linux kernel: from 5.17 before 5.17.2 — fixed in 5.17.2

How to fix

Upgrade to a fixed version: Linux kernel 5.17.2. Check the vendor advisory for mitigations.

References

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