CVE-2026-46271: wifi: ath12k: do WoW offloads only on primary link
In the Linux kernel, the following vulnerability has been resolved:
wifi: ath12k: do WoW offloads only on primary link
In case of multi-link connection, WCN7850 firmware crashes due to WoW offloads enabled on both primary and secondary links.
Change to do it only on primary link to fix it.
Tested-on: WCN7850 hw2.0 PCI WLAN.HMT.1.1.c5-00284-QCAHMTSWPLV1.0V2.0SILICONZ-1
Affected Software
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Configuration
For multi-link connections, configure ath12k to perform WoW offloads only on the primary link (do WoW offloads only on primary link) to avoid the WCN7850 firmware crash due to WoW.
Linux kernel (ath12k Wi-Fi driver) WoW offloads behavior (primary vs secondary links) = enabled on primary link only; disabled on secondary links
Event History
Frequently Asked Questions
What is the severity of CVE-2026-46271?
CVE-2026-46271 has a risk rating of 27.
How do I fix CVE-2026-46271?
To fix CVE-2026-46271, ensure that WoW (Wake on Wireless) offloads are only enabled on the primary link in multi-link connections.
What systems are affected by CVE-2026-46271?
CVE-2026-46271 affects systems using the Qualcomm ath12k driver in the Linux kernel.
What is the impact of CVE-2026-46271?
CVE-2026-46271 can cause firmware crashes due to improper WoW offload handling on multiple links.
When was CVE-2026-46271 published?
CVE-2026-46271 was published on June 3, 2026.