UNKNOWN NVD
CVE-2026-90375
In the Linux kernel, the following vulnerability has been resolved: wifi: mt76: fix non-AQL packet accounting for MLO stations __mt76_tx_queue_skb() overrides
In the Linux kernel, the following vulnerability has been resolved:
wifi: mt76: fix non-AQL packet accounting for MLO stations
__mt76_tx_queue_skb() overrides the wcid passed by the driver with
sta->drv_priv, so the wcid might incorrectly be changed after TX,
causing wcid->non_aql_packets to be counted on the wrong wcid. For
example, on the AP side, if a station's setup link is the 5G link and
the station uses 2G to transmit a frame, the value of non_aql_packets
is increased on the 5G wcid but decreased on the 2G wcid. Once the
inflated counter exceeds MT_MAX_NON_AQL_PKT, the TX scheduler
permanently refuses to service the station.
Drop the reassignment and account on the wcid used for transmission.
This also records the actual wcid in the queue entry.
References
- https://git.kernel.org/stable/c/186c957ac3325aefb982567ffdd3654b283688a7
- https://git.kernel.org/stable/c/8ae659743ba936b22ecb4620815887728e2820d6
- https://git.kernel.org/stable/c/f85f6933cc170155f1c7c2dffdd014965787c71b
- https://git.kernel.org/stable/c/fc7fae55255ccbde009232e84b102d2782a69ecf
This unknown severity vulnerability was published on 2026-09-17 via NVD.
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