---
cve: "CVE-2026-90381"
severity: "HIGH"
cvss: 8.8
epss: "0.2%"
vendor: "Linux"
kev: false
exploited: false
published: "2026-09-17 17:17:37"
tags: [cve, security, high]
source: tsecurity.de CVE-Dossier
exported: "2026-09-23T07:19:13+02:00"
---

# CVE-2026-90381

> 8.8 HIGH

## Beschreibung

In the Linux kernel, the following vulnerability has been resolved:

wifi: mt76: fix handling channel context with different bands in mt76_switch_vif_chanctx()

When performing channel switches on different radios within a short
timeframe, channel contexts with different bands can be carried for
each struct ieee80211_vif_chanctx_switch.

Rework mt76_switch_vif_chanctx() to properly handle this scenario.

## CVSS-Vektor

```
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
```

| Metrik | Wert | Bewertung |
|---|---|---|
| AV Angriffsvektor | Benachbart | warn |
| AC Komplexität | Gering | bad |
| PR Privilegien | Keine | bad |
| UI Interaktion | Keine | bad |
| S Scope | Unverändert | good |
| C Vertraulichkeit | Hoch | bad |
| I Integrität | Hoch | bad |
| A Verfügbarkeit | Hoch | bad |

## Patch verfügbar (OSV)

- Kernel ≥ 7.2.6

## Referenzen

- <https://git.kernel.org/stable/c/063169a2755abdcbe7698d98360336abb6bef414>
- <https://git.kernel.org/stable/c/70869cc429fffc77de51e7777c0ecb651e8fca07>

---
_Exportiert aus dem [tsecurity.de CVE-Dossier](https://tsecurity.de/cve?cve=CVE-2026-90381) · Datenquellen: EUVD (ENISA), NVD, OSV, CISA KEV, FIRST EPSS, Exploit-DB, BSI BITS_