In the Linux kernel, the following vulnerability has been resolved:
wifi: ath12k: Fix peer lookup in ath12k_dp_mon_rx_deliver_msdu()
In ath12k_dp_mon_rx_deliver_msdu(), peer lookup fails because rxcb->peer_id is not updated with a valid value. This is expected in monitor mode, where RX frames bypass the regular RX descriptor path that typically sets rxcb->peer_id. As a result, the peer is NULL, and link_id and link_valid fields in the RX status are not populated. This leads to a WARN_ON in mac80211 when it receives data frame from an associated station with invalid link_id.
Fix this potential issue by using ppduinfo->peer_id, which holds the correct peer id for the received frame. This ensures that the peer is correctly found and the associated link metadata is updated accordingly.
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-raspiUpgrade linux-image-6.17.0-1007-oracle-64kUpgrade linux-image-aws-64kUpgrade linux-image-oracle-64kUpgrade linux-image-6.17.0-1007-aws-64kUpgrade linux-image-virtualUpgrade linux-image-azure-6.17Upgrade linux-image-gcp-64kUpgrade linux-image-6.17.0-1008-azureUpgrade linux-image-raspi-6.17Upgrade linux-image-azureUpgrade linux-image-realtime-6.17Upgrade linux-image-aws-6.17Upgrade linux-image-genericUpgrade linux-image-6.17.0-1006-realtimeUpgrade linux-image-generic-64kUpgrade linux-image-gcpUpgrade linux-image-generic-6.17Upgrade linux-image-virtual-6.17Upgrade linux-image-aws-64k-6.17Upgrade linux-image-realtimeUpgrade linux-image-6.17.0-1007-gcp-64kUpgrade linux-image-6.17.0-14-generic-64kUpgrade linux-image-oem-6.17Upgrade linux-image-oracle-64k-6.17Upgrade linux-image-6.17.0-1011-oemUpgrade linux-image-6.17.0-1008-raspiUpgrade linux-image-oracle-6.17Upgrade linux-image-6.17.0-1007-oracleUpgrade linux-image-awsUpgrade linux-image-oracleUpgrade linux-image-gcp-6.17Upgrade linux-image-gcp-64k-6.17Upgrade linux-image-generic-64k-6.17Upgrade linux-image-6.17.0-1007-gcpUpgrade linux-image-6.17.0-14-genericUpgrade linux-image-6.17.0-1007-aws | Feb 13, 2026 | Feb 12, 2026 |
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