---
id: CVE-2026-98331
title: |-
  In the Linux kernel, the following vulnerability has been resolved:

  wifi: mac80211: unlist vifs when their netdev is unregistered

  mac80211 only removes vifs from the local->interfaces list when
  an interface is removed via ieee80211_if_…
summary: |-
  In the Linux kernel, the following vulnerability has been resolved:

  wifi: mac80211: unlist vifs when their netdev is unregistered

  mac80211 only removes vifs from the local->interfaces list when
  an interface is removed via ieee80211_if_…
severity: none
vendor: Linux
product: Linux
affected:
  - >-
    Linux >= 463d018323851a608eef52a9427b0585005c647f <
    a22c02863439993095acd0c3db97fa53cd515f4f
  - >-
    Linux >= 463d018323851a608eef52a9427b0585005c647f <
    20a56e96a6f7b4dfbd13f8732fd2673409fc7ba0
  - >-
    Linux >= 463d018323851a608eef52a9427b0585005c647f <
    b735ad1a9aca6080192c1316cf2706e5e1318762
  - >-
    Linux >= 463d018323851a608eef52a9427b0585005c647f <
    d45bf731ec7085d2cc2c5d179d3b3b6c743d4fb1
  - >-
    Linux >= 463d018323851a608eef52a9427b0585005c647f <
    821bab0456dfca12acef6df702c8f2477d313227
  - >-
    Linux >= 463d018323851a608eef52a9427b0585005c647f <
    eee2efd82867b623982ac51925b5a1812a74c50d
  - Linux 2.6.32
published: '2026-10-06'
updated: '2026-10-06'
sourceUpdated: '2026-10-06T09:18:25.517'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-98331'
references:
  - url: 'https://git.kernel.org/stable/c/20a56e96a6f7b4dfbd13f8732fd2673409fc7ba0'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/821bab0456dfca12acef6df702c8f2477d313227'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/a22c02863439993095acd0c3db97fa53cd515f4f'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/b735ad1a9aca6080192c1316cf2706e5e1318762'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/d45bf731ec7085d2cc2c5d179d3b3b6c743d4fb1'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/eee2efd82867b623982ac51925b5a1812a74c50d'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
tags:
  - nvd
  - cve.org
ingestedAt: '2026-10-06T08:50:17.405Z'
---

## Overview

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

wifi: mac80211: unlist vifs when their netdev is unregistered

mac80211 only removes vifs from the local->interfaces list when
an interface is removed via ieee80211_if_remove(), before it
unregisters the netdev. However, it's possible for a netdev to
be unregistered without going through that: When the netns that
holds the wiphy is destroyed, the wiphy is supposed to move to
the init_ns, but that can run into allocation failures.

Then, mac80211 has an interface listed that doesn't exist, and
will eventually hit

  BUG: failure at net/wireless/core.h:141/wiphy_to_rdev()!
  ...
  _cfg80211_unregister_wdev+0x24/0x36a [cfg80211]
  cfg80211_unregister_wdev+0x15/0x1d [cfg80211]
  ieee80211_remove_interfaces+0x1ff/0x257 [mac80211]
  ieee80211_unregister_hw+0x73/0x1d1 [mac80211]
  mac80211_hwsim_del_radio+0x114/0x166 [mac80211_hwsim]

Remove the interface from the list in ->ndo_uninit if it's still
around to avoid this.

## Remediation

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