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 ath12k_hal_desc_reo_parse_err(), 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-QCAHKSWPL_SILICONZ-1
Covered by Rapid7
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Ubuntu | — | Upgrade linux-image-aws-64kUpgrade linux-image-6.17.0-1009-aws-64kUpgrade linux-image-realtime-hwe-24.04Upgrade linux-image-aws-6.17Upgrade linux-image-azure-6.17Upgrade linux-image-oem-24.04bUpgrade linux-image-gcp-64kUpgrade linux-image-6.17.0-1010-azureUpgrade linux-image-oracle-64k-6.17Upgrade linux-image-aws-64k-6.17Upgrade linux-image-generic-64kUpgrade linux-image-virtualUpgrade linux-image-gcp-64k-6.17Upgrade linux-image-generic-64k-6.17Upgrade linux-image-oem-24.04Upgrade linux-image-virtual-6.17Upgrade linux-image-realtimeUpgrade linux-image-genericUpgrade linux-image-6.17.0-1009-oracleUpgrade linux-image-6.17.0-1009-oracle-64kUpgrade linux-image-oem-24.04dUpgrade linux-image-oracle-64kUpgrade linux-image-gcpUpgrade linux-image-generic-6.17Upgrade linux-image-6.17.0-19-genericUpgrade linux-image-raspiUpgrade linux-image-oem-6.17Upgrade linux-image-6.17.0-1009-awsUpgrade linux-image-realtime-6.17Upgrade linux-image-6.17.0-19-generic-64kUpgrade linux-image-virtual-hwe-24.04Upgrade linux-image-6.17.0-1008-realtimeUpgrade linux-image-generic-64k-hwe-24.04Upgrade linux-image-6.17.0-1017-oemUpgrade linux-image-oracle-6.17Upgrade linux-image-oem-24.04cUpgrade linux-image-gcp-6.17Upgrade linux-image-azureUpgrade linux-image-generic-hwe-24.04Upgrade linux-image-oem-24.04aUpgrade linux-image-6.17.0-1009-gcpUpgrade linux-image-raspi-6.17Upgrade linux-image-6.17.0-1010-raspiUpgrade linux-image-6.17.0-1009-gcp-64kUpgrade linux-image-awsUpgrade linux-image-oracle | Mar 17, 2026 | Dec 24, 2025 |
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