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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 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.

What this means for your business

    What to do

    1. 1Ask your IT team or provider whether any of your systems use the affected product.
    2. 2If you do, follow the vendor's guidance. No patch reference has been published yet.

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    Scoring

    CVSS
    Not yet scored
    Assigned by
    416baaa9-dc9f-4396-8d5f-8c081fb06d67

    Dates

    Published
    2026-09-17
    Last modified
    2026-09-17
    Sources
    NVD

    References