CVE-2025-38294 wifi: ath12k: fix NULL access in assign channel context handler
A NULL pointer dereference in the ath12k WiFi driver can cause a kernel crash when assigning a channel context fails.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2025-38294?
CVE-2025-38294 is a medium-severity vulnerability in Linux kernel, published on 10 Jul 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: ath12k: fix NULL access in assign channel context handler
Currently, when ath12k_mac_assign_vif_to_vdev() fails, the radio handle (ar) gets accessed from the link VIF handle (arvif) for debug logging, This is incorrect. In the fail scenario, radio handle is NULL. Fix the NULL access, avoid radio handle access by moving to the hardware debug logging helper function (ath12k_hw_warn).
Tested-on: QCN9274 hw2.0 PCI WLAN.WBE.1.3.1-00173-QCAHKSWPL_SILICONZ-1 Tested-on: WCN7850 hw2.0 PCI WLAN.HMT.1.0.c5-00481-QCAHMTSWPL_V1.0_V2.0_SILICONZ-3
Weakness: CWE-476
Which versions are affected by CVE-2025-38294?
It affects 1 product.
Products include Linux kernel.
How do I fix CVE-2025-38294?
Apply the vendor's patch.
Is CVE-2025-38294 being exploited?
There is no known exploitation of CVE-2025-38294 in the wild and no public exploit code.
Other vulnerabilities in Linux kernel
Sources
Also known as BELL-CVE-2025-38294, GHSA-qj8q-w772-32v5, UBUNTU-CVE-2025-38294.