---
id: CVE-2026-74412
title: 'wifi: rtw88: fix wrong pci_get_drvdata type in AER handlers'
summary: |-
  In the Linux kernel, the following vulnerability has been resolved:

  wifi: rtw88: fix wrong pci_get_drvdata type in AER handlers

  rtw88 stores an ieee80211_hw pointer via pci_set_drvdata() at probe
  time, but io_error_detected() and io_re…
severity: high
cvss: 8.8
cvssVector: 'CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H'
cvssSource: cna
vendor: Linux
product: Linux
affected:
  - >-
    Linux >= cdb82c80b9349ed1d9ce6b49856128e04f4effc9 <
    1ef3d1338d94ec41f58fbfb6ba7742a27ea61d89
  - >-
    Linux >= cdb82c80b9349ed1d9ce6b49856128e04f4effc9 <
    d7920797f721f944861f3c48ffb2b73f84b631fe
  - >-
    Linux >= cdb82c80b9349ed1d9ce6b49856128e04f4effc9 <
    706183dbef4a79d120d4e928f693bea50df496f8
  - Linux 6.17
ssvc:
  exploitation: none
  automatable: 'no'
  technicalImpact: total
  timestamp: '2026-10-16T18:56:11.020937Z'
published: '2026-08-15'
updated: '2026-10-16'
sourceUpdated: '2026-10-16T19:05:44.326Z'
source: CVEORG
sourceUrl: 'https://www.cve.org/CVERecord?id=CVE-2026-74412'
references:
  - url: 'https://git.kernel.org/stable/c/1ef3d1338d94ec41f58fbfb6ba7742a27ea61d89'
  - url: 'https://git.kernel.org/stable/c/d7920797f721f944861f3c48ffb2b73f84b631fe'
  - url: 'https://git.kernel.org/stable/c/706183dbef4a79d120d4e928f693bea50df496f8'
tags:
  - cve.org
epss: 0.00375
epssPercentile: 0.29895
ingestedAt: '2026-10-16T19:46:24.366Z'
---

## Overview

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

wifi: rtw88: fix wrong pci_get_drvdata type in AER handlers

rtw88 stores an ieee80211_hw pointer via pci_set_drvdata() at probe
time, but io_error_detected() and io_resume() retrieve it as a
net_device pointer.  This causes netif_device_detach/attach to
operate on an ieee80211_hw struct, reading and writing at wrong
offsets.

Use ieee80211_stop_queues/wake_queues instead, consistent with
every other queue stop/start path in the driver.

## Affected

- `Linux >= cdb82c80b9349ed1d9ce6b49856128e04f4effc9 < 1ef3d1338d94ec41f58fbfb6ba7742a27ea61d89`
- `Linux >= cdb82c80b9349ed1d9ce6b49856128e04f4effc9 < d7920797f721f944861f3c48ffb2b73f84b631fe`
- `Linux >= cdb82c80b9349ed1d9ce6b49856128e04f4effc9 < 706183dbef4a79d120d4e928f693bea50df496f8`
- `Linux 6.17`

## Remediation

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