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-2022-1001284: brcmfmac: pcie: Release firmwares in the brcmf_pcie_setup error path. Affects Kernel versions >= 82f93cf46d6007ffa003b2d4a2834563b6b84d21, < 0347bdfdb1529994ac3a4cb425087c477a74eb2c. No fix is published. How to fix ↓

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Background

The brcmfmac package is a wireless driver for Broadcom FullMAC WLAN devices. It provides support for PCIe-based devices. This vulnerability affects the brcmfmac PCIe setup process, specifically in the error path of brcmf_pcie_setup. The vulnerability was introduced in Linux Kernel version v5.4 and fixed in v5.17.2. It is important to address this vulnerability to prevent potential security risks.

Vulnerability Detail

The vulnerability in brcmfmac: pcie occurs in the error path of brcmf_pcie_setup. When an error is encountered during the setup process, the firmware is not properly released, leading to a resource leak. The impact and attack plausibility of this vulnerability have not been proven yet. However, if exploited, it could potentially result in denial of service or other security-related issues.

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 v5.17.2 or later. This update includes the necessary commit (0347bdfdb1529994ac3a4cb425087c477a74eb2c) to address the issue. Updating the Kernel will ensure that the firmware is correctly released in the brcmf_pcie_setup error path.

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Workaround

There is no specific workaround mentioned for this vulnerability.

Conclusion

The vulnerability in brcmfmac: pcie can be addressed by updating the Linux Kernel to version v5.17.2 or later. This update includes the necessary fix to release the firmware correctly in the brcmf_pcie_setup error path. If you require further support or assistance in vulnerability remediation, you can reach out to DevNack.com.

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