Description
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.
Affected products
Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.
Linux Linux
Default version status: unaffected
e1378e5228aaa1bf6bb253a379c7de1722a94e00 to < f94842ee088744a9e4b3b3ce4c91e897c4e72abaaffectede1378e5228aaa1bf6bb253a379c7de1722a94e00 to < 2c321f86846ead00552bc65f73f5b5f1f81d4023affectede1378e5228aaa1bf6bb253a379c7de1722a94e00 to < f85f6933cc170155f1c7c2dffdd014965787c71baffectede1378e5228aaa1bf6bb253a379c7de1722a94e00 to < fc7fae55255ccbde009232e84b102d2782a69ecfaffectede1378e5228aaa1bf6bb253a379c7de1722a94e00 to < 186c957ac3325aefb982567ffdd3654b283688a7affectede1378e5228aaa1bf6bb253a379c7de1722a94e00 to < 8ae659743ba936b22ecb4620815887728e2820d6affected
Linux Linux
Default version status: affected
5.10affected0 to < 5.10unaffected6.1.191 to ≤ 6.1.*unaffected6.6.160 to ≤ 6.6.*unaffected6.12.110 to ≤ 6.12.*unaffected6.18.52 to ≤ 6.18.*unaffected7.2.6 to ≤ 7.2.*unaffected7.3 to ≤ *unaffected
References
- https://git.kernel.org/stable/c/f94842ee088744a9e4b3b3ce4c91e897c4e72aba ↗
- https://git.kernel.org/stable/c/2c321f86846ead00552bc65f73f5b5f1f81d4023 ↗
- https://git.kernel.org/stable/c/f85f6933cc170155f1c7c2dffdd014965787c71b ↗
- https://git.kernel.org/stable/c/fc7fae55255ccbde009232e84b102d2782a69ecf ↗
- https://git.kernel.org/stable/c/186c957ac3325aefb982567ffdd3654b283688a7 ↗
- https://git.kernel.org/stable/c/8ae659743ba936b22ecb4620815887728e2820d6 ↗