CVE-2026-74413
HighCVSS 8.8Exploitation Probability (EPSS)
Low risk16th percentile - higher than 16% of all known CVEs
Summary
In the Linux kernel, the wifi: rtw89 driver's AER handlers (io_error_detected and io_resume) retrieved the pointer stored by pci_set_drvdata() as a net_device, while it was actually an ieee80211_hw pointer. This caused operations on wrong offsets of the structure.
Risk Assessment
Incorrect operations on the ieee80211_hw structure could lead to system crashes or unpredictable driver behavior, especially during PCIe error handling.
Recommendation
Install the kernel patch that uses ieee80211_stop_queues/wake_queues instead of netif_device_detach/attach in the rtw89 driver's AER handlers.
Original NVD description (English source)
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.