wifi: rtw89: fix wrong pci_get_drvdata type in AER handlers (CVE-2026-74413) | HOL Guard CVE

High · CVSS 8.8CVE-2026-74413

wifi: rtw89: fix wrong pci_get_drvdata type in AER handlers

Answer in brief

CVE-2026-74413 records a High severity (CVSS 8.8) vulnerability in wifi: rtw89: fix wrong pci_get_drvdata type in AER handlers. The current sources do not mark it as known exploited. The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.

Analysis pending evidence review

HOL Guard separates source facts from reviewed analysis. See the methodology.

Published Aug 15, 2026Updated Aug 17, 2026Source checked Sep 29, 2026First seen by HOL Aug 15, 2026Material review Aug 17, 2026

Upstream Advisory

Key facts

Risk: High · CVSS 8.8
Exploitation: Not marked as known exploited
Affected software: 2 mapped packages or products
Fix availability: Available

Why this deserves its current priority

CVSS is 8.8. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.

Analysis status

Analysis pending evidence review

Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.

Affected scope and exposure questions

The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.

Mapped affected packages and fixed versions
Package	Affected range	Fixed version
Linux/Linuxgeneric	>=16e3d93c6183649a3b210f82b83c1cb12aa5e8a3 <aefc30e4a829c1683f6ae999df7f9310c27eae6c \|\| >=16e3d93c6183649a3b210f82b83c1cb12aa5e8a3 <c1907b9a4fa9cb33d11a9af138374dd2e93f7a93 \|\| >=16e3d93c6183649a3b210f82b83c1cb12aa5e8a3 <7068c379cf9aa8afe4dce4d9d82390187aa9c4d0	aefc30e4a829c1683f6ae999df7f9310c27eae6c, c1907b9a4fa9cb33d11a9af138374dd2e93f7a93, 7068c379cf9aa8afe4dce4d9d82390187aa9c4d0
Linux/Linuxgeneric	6.17	Not reported

Recommended response

Check inventory. Check lockfiles and deployed manifests for Linux/Linux, Linux/Linux.
Review the reported fix. Update Linux/Linux to aefc30e4a829c1683f6ae999df7f9310c27eae6c if you use the affected versions. Test the change in a non-production environment first.

Evidence timeline and material changes

Published upstream
Aug 15, 2026
Evidence: source:cvelist:source_dates:source-dates:record
Source modified
Aug 17, 2026
Evidence: source:cvelist:source_dates:source-dates:record
First seen by HOL
Aug 15, 2026

Sources and claim methodology

Upstream source description

In the Linux kernel, the following vulnerability has been resolved: wifi: rtw89: fix wrong pci_get_drvdata type in AER handlers rtw89 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. The adjacent io_slot_reset() already does it correctly. Use ieee80211_stop_queues/wake_queues instead, consistent with every other queue stop/start path in the driver. Tested on RTL8852CE by calling the handlers from a test module before and after the fix.

Quoted source text, attributed separately from HOL analysis.