CVE-2026-90375 Affecting linux-6.12 package, versions <6.12.111-1~deb12u1
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-DEBIAN12-LINUX612-20507261
- published5 Oct 2026
- disclosed17 Sept 2026
Introduced: 17 Sep 2026
NewCVE-2026-90375 (opens in a new tab)How to fix?
Upgrade Debian:12 linux-6.12 to version 6.12.111-1~deb12u1 or higher.
NVD Description
Note: Versions mentioned in the description apply only to the upstream linux-6.12 package and not the linux-6.12 package as distributed by Debian.
See How to fix? for Debian:12 relevant fixed versions and status.
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://security-tracker.debian.org/tracker/CVE-2026-90375
- 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