CVE-2026-90375

CVE-2026-90375

published September 17, 2026

CVSS
—
EPSS
0%
Percentile
5.8
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS
Not scored
CVSS v4.0
Not supplied
EPSS
0.00168 · 5.8th percentile
Published
2026-09-17T21:17Z
References (5)
EPSS history
Timeline
  • 19 SEP 03:55Z
    EPSS moved — → 0%
    epss
  • 17 SEP 16:09Z
    wifi: mt76: fix non-AQL packet accounting for MLO stations
    cvelistv5