---
id: CVE-2026-90381
title: >-
  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

  timefram…
summary: >-
  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

  timefram…
severity: high
cvss: 8.8
cvssVector: 'CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H'
vendor: Linux
product: Linux
affected:
  - >-
    Linux >= 82334623af0cd2154633cdb007719a321048fafc <
    063169a2755abdcbe7698d98360336abb6bef414
  - >-
    Linux >= 82334623af0cd2154633cdb007719a321048fafc <
    70869cc429fffc77de51e7777c0ecb651e8fca07
  - Linux 6.14
published: '2026-09-17'
updated: '2026-10-15'
sourceUpdated: '2026-10-15T11:18:02.247'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-90381'
references:
  - url: 'https://git.kernel.org/stable/c/063169a2755abdcbe7698d98360336abb6bef414'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/70869cc429fffc77de51e7777c0ecb651e8fca07'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/7a1b971b799eae8a957acb90d8100576df889644'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: >-
      https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-90381.json
  - url: 'https://access.redhat.com/security/cve/CVE-2026-90381'
  - url: 'https://bugzilla.redhat.com/show_bug.cgi?id=2536645'
  - url: 'https://www.cve.org/CVERecord?id=CVE-2026-90381'
  - url: 'https://nvd.nist.gov/vuln/detail/CVE-2026-90381'
  - url: >-
      https://git.kernel.org/pub/scm/linux/security/vulns.git/plain/cve/published/2026/CVE-2026-90381.mbox
tags:
  - nvd
  - cve.org
  - csaf
  - vex
  - red-hat
  - score-dispute
epss: 0.00375
epssPercentile: 0.31296
ingestedAt: '2026-09-17T16:21:47.806Z'
cwe:
  - CWE-821
scores:
  nvd: 8.8
  vendor: 5.5
---

## Overview

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.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.

## Vendor advisories

- **Red Hat VEX** · Low · affected: Red Hat Enterprise Linux 10, Red Hat Enterprise Linux 9, Red Hat OpenShift Container Platform 4 · no fix planned: Red Hat Enterprise Linux 10, Red Hat Enterprise Linux 9, Red Hat OpenShift Container Platform 4 · updated 2026-10-20 · [vex](https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-90381.json)