---
id: CVE-2026-98421
title: |-
  In the Linux kernel, the following vulnerability has been resolved:

  wifi: mac80211: require a peer station for TDLS setup confirm

  It's nonsense for the setup confirm to go to station that
  doesn't even exist, and it hits a warning when …
summary: |-
  In the Linux kernel, the following vulnerability has been resolved:

  wifi: mac80211: require a peer station for TDLS setup confirm

  It's nonsense for the setup confirm to go to station that
  doesn't even exist, and it hits a warning when …
severity: none
published: '2026-10-14'
updated: '2026-10-14'
sourceUpdated: '2026-10-14T14:17:53.573'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-98421'
references:
  - url: 'https://git.kernel.org/stable/c/038e1d126304fd25d507fd4e671232df57bd1799'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/1c0a5c96473b9e7a5f4c453ef6a13dc0f5589a4b'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/6bae6ef511a29ef12ab969adeea691067d4d5d74'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/742c762bee59c973684f70dfed7de4945d3141e2'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/d0afa5395c46d73ad2090aa50209886e84f179bd'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/fce36d242a18ddf64731d816a37564103172da11'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
tags:
  - nvd
ingestedAt: '2026-10-14T15:36:13.988Z'
---

## Overview

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

wifi: mac80211: require a peer station for TDLS setup confirm

It's nonsense for the setup confirm to go to station that
doesn't even exist, and it hits a warning when building
the frame:

  WARN_ON_ONCE(!sta || !ap_sta)

Only accept WLAN_TDLS_SETUP_CONFIRM when the station is
already there as a TDLS station. Need to copy the call
to ieee80211_tdls_prep_mgmt_packet() since the existing
WLAN_TDLS_DISCOVERY_REQUEST already falls through to it.

## Remediation

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