What’s Vulnerable › Vulnerabilities

CVE-2026-74412: wifi: rtw88: fix wrong pci_get_drvdata type in AER handlers

• Severity: high (CVSS 8.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.4% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-08-15 · updated 2026-10-16

Description

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 products

• Linux kernel: 6.17 — fixed in 7.2

How to fix

Upgrade to a fixed version: Linux kernel 7.2. Check the vendor advisory for mitigations.

References

• https://git.kernel.org/stable/c/1ef3d1338d94ec41f58fbfb6ba7742a27ea61d89
• https://git.kernel.org/stable/c/706183dbef4a79d120d4e928f693bea50df496f8
• https://git.kernel.org/stable/c/d7920797f721f944861f3c48ffb2b73f84b631fe

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