---
id: CVE-2026-74367
title: |-
  In the Linux kernel, the following vulnerability has been resolved:

  wifi: ath12k: fix inconsistent arvif state in vdev_create error paths

  ath12k_mac_vdev_create() has three error path issues that leave arvif
  in an inconsistent state:

  …
summary: |-
  In the Linux kernel, the following vulnerability has been resolved:

  wifi: ath12k: fix inconsistent arvif state in vdev_create error paths

  ath12k_mac_vdev_create() has three error path issues that leave arvif
  in an inconsistent state:

  …
severity: high
cvss: 7.8
cvssVector: 'CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H'
vendor: Linux
product: Linux
affected:
  - >-
    Linux >= 477cabfdb776b571fab425813c074f30c02a5cf6 <
    c09314b8b4c6290290a8a59c9e0e546231231186
  - >-
    Linux >= 477cabfdb776b571fab425813c074f30c02a5cf6 <
    e0140e094b196d92f2a4ce167ee73cbfab000290
  - >-
    Linux >= 477cabfdb776b571fab425813c074f30c02a5cf6 <
    c972636efc63f0f43d725b59805dd1ae5bc4b31e
  - Linux 6.13
published: '2026-08-15'
updated: '2026-10-15'
sourceUpdated: '2026-10-15T11:17:45.563'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-74367'
references:
  - url: 'https://git.kernel.org/stable/c/c09314b8b4c6290290a8a59c9e0e546231231186'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/c972636efc63f0f43d725b59805dd1ae5bc4b31e'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/e0140e094b196d92f2a4ce167ee73cbfab000290'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
tags:
  - nvd
  - cve.org
epss: 0.00165
epssPercentile: 0.05337
ingestedAt: '2026-10-15T11:00:41.677Z'
---

## Overview

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

wifi: ath12k: fix inconsistent arvif state in vdev_create error paths

ath12k_mac_vdev_create() has three error path issues that leave arvif
in an inconsistent state:

1. When ath12k_wmi_vdev_create() fails, the function returns directly
   without clearing arvif->ar, which was already set before the WMI
   call. Subsequent code checking arvif->ar to determine vdev readiness
   will see a non-NULL value despite no vdev existing in firmware.

2. When ath12k_wmi_send_peer_delete_cmd() fails in err_peer_del, the
   code jumped to err: skipping the DP peer cleanup and vdev rollback,
   leaving num_created_vdevs, vdev maps and arvif list membership live.

3. When ath12k_wait_for_peer_delete_done() fails, the code jumped to
   err_vdev_del: skipping the DP peer cleanup.

Fix by changing the ath12k_wmi_vdev_create() failure to goto err instead
of returning directly, routing both err_peer_del failure paths through
err_dp_peer_del: for proper DP peer and vdev rollback, and consolidating
the arvif state cleanup at err:.

Tested-on: WCN7850 hw2.0 PCI WLAN.HMT.1.1.c5-00302-QCAHMTSWPL_V1.0_V2.0_SILICONZ-1.115823.3

## Remediation

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