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
Metrics
Affected Vendors & Products
References
History
Fri, 14 Nov 2025 00:15:00 +0000
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cvssV3_1
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Wed, 12 Nov 2025 23:00:00 +0000
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Linux
Linux linux Kernel |
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Linux linux Kernel |
Wed, 12 Nov 2025 10:30:00 +0000
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| Description | 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 | |
| Title | wifi: ath12k: Fix peer lookup in ath12k_dp_mon_rx_deliver_msdu() | |
| References |
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Status: PUBLISHED
Assigner: Linux
Published: 2025-11-12T10:23:21.879Z
Updated: 2025-11-12T10:23:21.879Z
Reserved: 2025-04-16T07:20:57.170Z
Link: CVE-2025-40131
No data.
Status : Awaiting Analysis
Published: 2025-11-12T11:15:42.753
Modified: 2025-11-12T16:19:12.850
Link: CVE-2025-40131