---
id: CVE-2025-71227
title: 'wifi: mac80211: don''t WARN for connections on invalid channels'
summary: |-
  In the Linux kernel, the following vulnerability has been resolved:

  wifi: mac80211: don't WARN for connections on invalid channels

  It's not clear (to me) how exactly syzbot managed to hit this,
  but it seems conceivable that e.g. regula…
severity: none
vendor: Linux
product: Linux
affected:
  - >-
    Linux >= f2d9d270c15ae0139b54a7e7466d738327e97e03 <
    c02b1d244a5d799696ca74d3fba6539c8d76195f
  - >-
    Linux >= f2d9d270c15ae0139b54a7e7466d738327e97e03 <
    579cf5939f8f4c4f88c75862d0c573fb13567b74
  - >-
    Linux >= f2d9d270c15ae0139b54a7e7466d738327e97e03 <
    10d3ff7e5812c8d70300f6fa8f524009a06aa7e1
  - >-
    Linux >= f2d9d270c15ae0139b54a7e7466d738327e97e03 <
    99067b58a408a384d2a45c105eb3dce980a862ce
  - Linux 3.8
published: '2026-02-18'
updated: '2026-10-21'
sourceUpdated: '2026-10-21T12:38:37.677Z'
source: CVEORG
sourceUrl: 'https://www.cve.org/CVERecord?id=CVE-2025-71227'
references:
  - url: 'https://git.kernel.org/stable/c/c02b1d244a5d799696ca74d3fba6539c8d76195f'
  - url: 'https://git.kernel.org/stable/c/579cf5939f8f4c4f88c75862d0c573fb13567b74'
  - url: 'https://git.kernel.org/stable/c/10d3ff7e5812c8d70300f6fa8f524009a06aa7e1'
  - url: 'https://git.kernel.org/stable/c/99067b58a408a384d2a45c105eb3dce980a862ce'
tags:
  - cve.org
epss: 0.00177
epssPercentile: 0.07133
ingestedAt: '2026-10-21T12:48:53.673Z'
---

## Overview

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

wifi: mac80211: don't WARN for connections on invalid channels

It's not clear (to me) how exactly syzbot managed to hit this,
but it seems conceivable that e.g. regulatory changed and has
disabled a channel between scanning (channel is checked to be
usable by cfg80211_get_ies_channel_number) and connecting on
the channel later.

With one scenario that isn't covered elsewhere described above,
the warning isn't good, replace it with a (more informative)
error message.

## Affected

- `Linux >= f2d9d270c15ae0139b54a7e7466d738327e97e03 < c02b1d244a5d799696ca74d3fba6539c8d76195f`
- `Linux >= f2d9d270c15ae0139b54a7e7466d738327e97e03 < 579cf5939f8f4c4f88c75862d0c573fb13567b74`
- `Linux >= f2d9d270c15ae0139b54a7e7466d738327e97e03 < 10d3ff7e5812c8d70300f6fa8f524009a06aa7e1`
- `Linux >= f2d9d270c15ae0139b54a7e7466d738327e97e03 < 99067b58a408a384d2a45c105eb3dce980a862ce`
- `Linux 3.8`

## Remediation

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