CVE-2025-68729: wifi: ath12k: Fix MSDU buffer types handling in RX error path
In the Linux kernel, the following vulnerability has been resolved:
wifi: ath12k: Fix MSDU buffer types handling in RX error path
Currently, packets received on the REO exception ring from unassociated peers are of MSDU buffer type, while the driver expects link descriptor type packets. These packets are not parsed further due to a return check on packet type in ath12khaldescreoparseerr(), but the associated skb is not freed. This may lead to kernel crashes and buffer leaks.
Hence to fix, update the RX error handler to explicitly drop MSDU buffer type packets received on the REO exception ring. This prevents further processing of invalid packets and ensures stability in the RX error handling path.
Tested-on: QCN9274 hw2.0 PCI WLAN.WBE.1.4.1-00199-QCAHKSWPLSILICONZ-1
Affected Software
Event History
Frequently Asked Questions
What is the severity of CVE-2025-68729?
CVE-2025-68729 has not been assigned a severity rating yet, as it is a specific fix in the Linux kernel.
How do I fix CVE-2025-68729?
To address CVE-2025-68729, upgrade to the latest version of the Linux kernel that includes the fix for the MSDU buffer types handling.
What components are affected by CVE-2025-68729?
CVE-2025-68729 affects the ath12k driver in the Linux kernel.
What does CVE-2025-68729 address?
CVE-2025-68729 addresses a handling issue of MSDU buffer types in the RX error path when receiving packets from unassociated peers.
When was CVE-2025-68729 resolved?
CVE-2025-68729 was resolved in recent updates to the Linux kernel.