CVE-2022-50852
Unknown Unknown - Not Provided

Use-After-Free Vulnerability in Linux mt7921 WiFi Driver

Publication date: 2025-12-30

Last updated on: 2025-12-30

Assigner: kernel.org

Description
In the Linux kernel, the following vulnerability has been resolved: wifi: mt76: mt7921: fix use after free in mt7921_acpi_read() Don't dereference "sar_root" after it has been freed.

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Meta Information

Published
2025-12-30
Last Modified
2025-12-30
Generated
2026-07-06
AI Q&A
2025-12-30
EPSS Evaluated
2026-07-05
NVD
CVE-2022-50852
EUVD
EUVD-2022-55846

Affected Vendors & Products

Showing 1 associated CPE
Vendor Product Version / Range
linux linux_kernel *

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Exploitability

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CWE ID Description
CWE-UNKNOWN

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Executive Summary

This vulnerability is a use-after-free issue in the Linux kernel's mt7921 WiFi driver. Specifically, the code dereferences the pointer "sar_root" after it has already been freed, which can lead to undefined behavior or system crashes.

Impact Analysis

The use-after-free vulnerability can cause system instability, crashes, or potentially allow an attacker to execute arbitrary code or escalate privileges by exploiting the improper handling of memory in the WiFi driver.

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