---
id: CVE-2026-98346
title: |-
  In the Linux kernel, the following vulnerability has been resolved:

  wifi: cfg80211: don't get the radio mask for netdev-less wdevs

  cfg80211_calculate_bi_data() calls rdev_get_radio_mask() with
  wdev->netdev, which can be NULL and then c…
summary: |-
  In the Linux kernel, the following vulnerability has been resolved:

  wifi: cfg80211: don't get the radio mask for netdev-less wdevs

  cfg80211_calculate_bi_data() calls rdev_get_radio_mask() with
  wdev->netdev, which can be NULL and then c…
severity: none
vendor: Linux
product: Linux
affected:
  - >-
    Linux >= abb4cfe3661aa05426916b21164f88ca5a405a3a <
    5b313159c970e945ee125ca87fad0d96ed913e55
  - >-
    Linux >= abb4cfe3661aa05426916b21164f88ca5a405a3a <
    693d777846d525b8b218bad97a1befa5d9bd4334
  - >-
    Linux >= abb4cfe3661aa05426916b21164f88ca5a405a3a <
    7166da84a7fe3553f9065782fd80299a37b150e5
  - >-
    Linux >= abb4cfe3661aa05426916b21164f88ca5a405a3a <
    a7783e585360ee05dfe21d3173dbbe985c94f29e
  - Linux 6.11
published: '2026-10-06'
updated: '2026-10-06'
sourceUpdated: '2026-10-06T09:18:27.633'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-98346'
references:
  - url: 'https://git.kernel.org/stable/c/5b313159c970e945ee125ca87fad0d96ed913e55'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/693d777846d525b8b218bad97a1befa5d9bd4334'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/7166da84a7fe3553f9065782fd80299a37b150e5'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/a7783e585360ee05dfe21d3173dbbe985c94f29e'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
tags:
  - nvd
  - cve.org
ingestedAt: '2026-10-06T08:50:17.397Z'
---

## Overview

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

wifi: cfg80211: don't get the radio mask for netdev-less wdevs

cfg80211_calculate_bi_data() calls rdev_get_radio_mask() with
wdev->netdev, which can be NULL and then crashes in mac80211.

To avoid that, invert the order of checks since wdev->netdev
is always valid for beaconing interfaces.

## Remediation

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