CVE-2026-90381

High

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.

Package Linux Kernel
Published 2026-09-17
Last modified 2026-09-18
CVSS version 3.1
Patch available
Yes

CVSS 3.1 score

8.8

out of 10
High
Attack Vector
Adjacent
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High
Vector string
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected versions

Linux kernel versions 6.14 and later are affected. Fixed in 7.2.6, 7.3-rc1 and their respective stable series.

Affected from
≥ 6.14
Fixed in
✓ 7.2.6 7.2.x ✓ 7.3-rc1

References

2 total

Frequently asked questions

  • What is CVE-2026-90381?

    CVE-2026-90381 is a High severity Linux kernel vulnerability with a CVSS score of 8.8 out of 10 . It affects Linux kernel versions from 6.14 onward and has been patched in 7.2.6 and 7.3-rc1. CVE-2026-90381 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

  • What is the CVSS score for CVE-2026-90381?

    CVE-2026-90381 has a CVSS score of 8.8 out of 10, rated High severity (CVSS 3.1). The vector string is CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H .

  • Is there a patch available for CVE-2026-90381?

    Yes. CVE-2026-90381 has been patched. Fixed versions include 7.2.6 and 7.3-rc1. If you are running Linux kernel 6.14 or later up to the fix versions, apply the relevant patch for your kernel branch.

  • Is CVE-2026-90381 actively exploited?

    No. CVE-2026-90381 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.

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