Vulnerability in brcmfmac: pcie

Kernel Updated 02 Oct 2025

Summary

24/04/2022

Disclosed on

N/A

Severity

No i

Fix available

Unrated

Severity

Not published

CVSS Score

GSD-2022-1002122: brcmfmac: pcie: Release firmwares in the brcmf_pcie_setup error path. Affects Kernel versions >= 82f93cf46d6007ffa003b2d4a2834563b6b84d21, < f3820ddaf4f3ac80c7401ccc6a42e663c9317f31. No fix is published. How to fix ↓

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Background

The brcmfmac package is a kernel module for Broadcom FullMAC wireless devices. It provides support for PCIe-based wireless adapters. These adapters are commonly used in various devices such as laptops, desktops, and IoT devices. The brcmfmac module handles the initialization and management of these wireless adapters in the Linux kernel.

Vulnerability Detail

The vulnerability in brcmfmac: pcie is related to the improper release of firmwares in the brcmf_pcie_setup error path. When an error occurs during the setup process of the PCIe-based wireless adapter, the firmware is not properly released, leading to a resource leak. This vulnerability can potentially be exploited by an attacker to cause a denial-of-service condition or to escalate privileges on a vulnerable system.

How To Fix

No fixed version is published for this vulnerability.

To fix this vulnerability, it is recommended to update the Linux Kernel to version v5.10.110 or later. The fix for this vulnerability was implemented in commit f3820ddaf4f3ac80c7401ccc6a42e663c9317f31. Updating the kernel will ensure that the brcmfmac module properly releases firmwares in the error path, mitigating the vulnerability.

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Workaround

There is no specific workaround mentioned for this vulnerability.

Conclusion

The vulnerability in brcmfmac: pcie can be mitigated by updating the Linux Kernel to version v5.10.110 or later. This update ensures that the brcmfmac module properly releases firmwares in the error path, reducing the risk of exploitation. For further support or information on vulnerability remediation, please contact DevNack.com.

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