CVE-2026-90381

High

Description

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.

SeverityHigh
CVSS8.8
Exploit probability—
ProductLinux
PublishedSep 17, 2026
First seenSep 17, 2026

How to fix

Update
  • Linux Linux7a1b971b799eae8a957acb90d8100576df889644, 063169a2755abdcbe7698d98360336abb6bef414, 70869cc429fffc77de51e7777c0ecb651e8fca07 or later

Affected products

ProductAffected versionsFixed in
Linux Linux82334623af0cd2154633cdb007719a321048fafc ≤ v < 7a1b971b799eae8a957acb90d8100576df889644, 82334623af0cd2154633cdb007719a321048fafc ≤ v < 063169a2755abdcbe7698d98360336abb6bef414, 82334623af0cd2154633cdb007719a321048fafc ≤ v < 70869cc429fffc77de51e7777c0ecb651e8fca07, 6.147a1b971b799eae8a957acb90d8100576df889644, 063169a2755abdcbe7698d98360336abb6bef414, 70869cc429fffc77de51e7777c0ecb651e8fca07

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CVE-2026-90381 · Linux · Dark Radar