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In the Linux kernel, the following vulnerability has been resolved:
wifi: ath12k: Skip Rx TID cleanup for self peer
During peer create, dp setup for the peer is done where Rx TID is updated for all the TIDs. Peer object for self peer will not go through dp setup.
When core halts, dp cleanup is done for all the peers. While cleanup, rx_tid::ab is accessed which causes below stack trace for self peer.
WARNING: CPU: 6 PID: 12297 at drivers/net/wireless/ath/ath12k/dp_rx.c:851 Call Trace: __warn+0x7b/0x1a0 ath12k_dp_rx_frags_cleanup+0xd2/0xe0 [ath12k] report_bug+0x10b/0x200 handle_bug+0x3f/0x70 exc_invalid_op+0x13/0x60 asm_exc_invalid_op+0x16/0x20 ath12k_dp_rx_frags_cleanup+0xd2/0xe0 [ath12k] ath12k_dp_rx_frags_cleanup+0xca/0xe0 [ath12k] ath12k_dp_rx_peer_tid_cleanup+0x39/0xa0 [ath12k] ath12k_mac_peer_cleanup_all+0x61/0x100 [ath12k] ath12k_core_halt+0x3b/0x100 [ath12k] ath12k_core_reset+0x494/0x4c0 [ath12k]
sta object in peer will be updated when remote peer is created. Hence use peer::sta to detect the self peer and skip the cleanup.
Tested-on: QCN9274 hw2.0 PCI WLAN.WBE.1.0.1-00029-QCAHKSWPL_SILICONZ-1 Tested-on: WCN7850 hw2.0 PCI WLAN.HMT.1.0.c5-00481-QCAHMTSWPL_V1.0_V2.0_SILICONZ-3
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Debian | — | Upgrade linux | Jul 27, 2026 | Jul 27, 2026 |
| Ubuntu | — | Upgrade linux-image-oem-22.04Upgrade linux-image-ibm-classicUpgrade linux-image-6.8.0-1028-raspiUpgrade linux-image-lowlatency-64kUpgrade linux-image-6.11.0-1009-azureUpgrade linux-image-nvidia-lowlatency-64kUpgrade linux-image-generic-lpaeUpgrade linux-image-6.11.0-1009-azure-fdeUpgrade linux-image-6.8.0-2023-raspi-realtimeUpgrade linux-image-oracle-64kUpgrade linux-image-raspi-realtimeUpgrade linux-image-virtualUpgrade linux-image-lowlatency-hwe-22.04Upgrade linux-image-oem-24.04aUpgrade linux-image-oracle-lts-24.04Upgrade linux-image-oem-22.04bUpgrade linux-image-ibmUpgrade linux-image-6.8.0-1024-oracle-64kUpgrade linux-image-6.8.0-1028-gcpUpgrade linux-image-gcpUpgrade linux-image-oem-22.04aUpgrade linux-image-oem-24.04bUpgrade linux-image-gcp-64k-lts-24.04Upgrade linux-image-nvidiaUpgrade linux-image-generic-64kUpgrade linux-image-lowlatency-64k-hwe-22.04Upgrade linux-image-6.11.0-1009-gcpUpgrade linux-image-ibm-lts-24.04Upgrade linux-image-oracleUpgrade linux-image-6.11.0-1005-realtimeUpgrade linux-image-nvidia-64k-6.8Upgrade linux-image-6.11.0-1011-oracleUpgrade linux-image-6.8.0-58-lowlatencyUpgrade linux-image-azure-nvidiaUpgrade linux-image-gkeopUpgrade linux-image-6.11.0-1011-oracle-64kUpgrade linux-image-virtual-hwe-24.04Upgrade linux-image-genericUpgrade linux-image-6.8.0-58-lowlatency-64kUpgrade linux-image-generic-64k-hwe-24.04Upgrade linux-image-lowlatencyUpgrade linux-image-azure-fde-lts-24.04Upgrade linux-image-gkeop-6.8Upgrade linux-image-azure-fdeUpgrade linux-image-azure-lts-24.04Upgrade linux-image-6.8.0-1027-awsUpgrade linux-image-6.8.1-1020-realtimeUpgrade linux-image-nvidia-64k-hwe-22.04Upgrade linux-image-nvidia-hwe-22.04Upgrade linux-image-nvidia-6.8Upgrade linux-image-azureUpgrade linux-image-generic-64k-hwe-22.04Upgrade linux-image-6.8.0-1014-azure-nvidiaUpgrade linux-image-generic-hwe-24.04Upgrade linux-image-6.8.0-1024-ibmUpgrade linux-image-6.8.0-1026-oemUpgrade linux-image-nvidia-lowlatencyUpgrade linux-image-6.8.0-1024-oracleUpgrade linux-image-6.11.0-18-generic-64kUpgrade linux-image-gcp-64kUpgrade linux-image-6.11.0-1015-oemUpgrade linux-image-aws-lts-24.04Upgrade linux-image-gkeUpgrade linux-image-gcp-lts-24.04Upgrade linux-image-realtimeUpgrade linux-image-6.8.0-1026-nvidia-lowlatencyUpgrade linux-image-6.8.0-1027-azure-fdeUpgrade linux-image-oem-22.04cUpgrade linux-image-6.11.0-18-genericUpgrade linux-image-6.8.0-1026-nvidia-64kUpgrade linux-image-virtual-hwe-22.04Upgrade linux-image-6.8.0-1023-gkeUpgrade linux-image-6.8.0-1027-azureUpgrade linux-image-6.8.0-58-genericUpgrade linux-image-awsUpgrade linux-image-oem-22.04dUpgrade linux-image-raspiUpgrade linux-image-6.8.0-1026-nvidiaUpgrade linux-image-oracle-64k-lts-24.04Upgrade linux-image-realtime-hwe-24.04Upgrade linux-image-6.8.0-1026-nvidia-lowlatency-64kUpgrade linux-image-nvidia-64kUpgrade linux-image-6.8.0-1028-gcp-64kUpgrade linux-image-generic-hwe-22.04Upgrade linux-image-6.8.0-58-generic-64kUpgrade linux-image-oem-24.04Upgrade linux-image-kvmUpgrade linux-image-6.11.0-1010-lowlatencyUpgrade linux-image-6.11.0-1010-lowlatency-64kUpgrade linux-image-6.11.0-1009-awsUpgrade linux-image-6.8.0-1010-gkeopUpgrade linux-image-6.11.0-1008-raspi | Feb 20, 2025 | Dec 27, 2024 |
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