CVE-2023-54025 wifi: rsi: Do not configure WoWlan in shutdown hook if not enabled
A null pointer dereference in the Linux kernel RSI WiFi driver during shutdown can cause a system crash if Wake-on-WLAN was not previously configured.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2023-54025?
CVE-2023-54025 is a vulnerability in Linux, published on 24 Dec 2025. It can only be exploited from the same machine or local network, with no action from the victim.
Official 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.
Which versions are affected by CVE-2023-54025?
How do I fix CVE-2023-54025?
Apply the vendor's patch.
Is CVE-2023-54025 being exploited?
There is no known exploitation of CVE-2023-54025 in the wild and no public exploit code.
Sources
Also known as BELL-CVE-2023-54025, DEBIAN-CVE-2023-54025, GHSA-jhx4-vm77-c4v2, UBUNTU-CVE-2023-54025.