BaseFortify

Publication date: 2025-12-24

Last updated on: 2025-12-29

Assigner: kernel.org

Description

In the Linux kernel, the following vulnerability has been resolved: wifi: rsi: Do not configure WoWlan in shutdown hook if not enabled In case WoWlan was never configured during the operation of the system, the hw->wiphy->wowlan_config will be NULL. rsi_config_wowlan() checks whether wowlan_config is non-NULL and if it is not, then WARNs about it. The warning is valid, as during normal operation the rsi_config_wowlan() should only ever be called with non-NULL wowlan_config. In shutdown this rsi_config_wowlan() should only ever be called if WoWlan was configured before by the user. Add checks for non-NULL wowlan_config into the shutdown hook. While at it, check whether the wiphy is also non-NULL before accessing wowlan_config . Drop the single-use wowlan_config variable, just inline it into function call.

CVSS Scores

EPSS Scores

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Meta Information

Published

2025-12-24

Last Modified

2025-12-29

Generated

2026-07-06

AI Q&A

2025-12-24

EPSS Evaluated

2026-07-05

NVD

CVE-2023-54025

EUVD

EUVD-2025-205122

Affected Vendors & Products

Currently, no data is known.

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-UNKNOWN

Attack-Flow Graph

Executive Summary

This vulnerability involves the Linux kernel's wifi driver for RSI devices. Specifically, it concerns the handling of Wake-on-WLAN (WoWlan) configuration during system shutdown. If WoWlan was never enabled during system operation, the wowlan_config pointer is NULL. However, the function rsi_config_wowlan() was being called during shutdown without checking if wowlan_config was non-NULL, causing warnings and potential improper behavior. The fix adds checks to ensure rsi_config_wowlan() is only called if WoWlan was previously configured, preventing access to NULL pointers during shutdown.

Impact Analysis

If unpatched, this vulnerability could cause warnings or errors during system shutdown related to accessing a NULL wowlan_config pointer. While the description does not specify direct security impacts such as privilege escalation or denial of service, improper handling of NULL pointers can lead to system instability or crashes during shutdown.

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