CVE-2026-80947Medium· 4.7▾ SunlitA flaw was found in the Linux kernel's `rtl8xxxu` Wi-Fi driver. A race condition exists during the driver's stop process, specifically when handling receive (RX) Universal Serial Bus (USB) Request Blocks (URBs). This allows a worker to acc…
▾ Sunlit zone — Low / medium · no exploitation signal
impact 25.9 · likelihood 0 · exploitation 0
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Exploit-prediction probability, daily snapshots since Sep 12.
Disclosure to exploitation, from the record and what we observed since indexing it.
Disclosed via CSAF
0.2%
— → 7.1
none → high
— → 7.8
none → high
7.8 → 7.1
7.8 → 5.5
high → medium
5.5 → 7
medium → high
7 → 7.8
Last analysed / modified upstream
7.8 → 4.7
high → medium
A flaw was found in the Linux kernel's rtl8xxxu Wi-Fi driver. A race condition exists during the driver's stop process, specifically when handling receive (RX) Universal Serial Bus (USB) Request Blocks (URBs). This allows a worker to access memory that has already been freed, leading to a use-after-free vulnerability. This issue can result in system instability or a denial of service.
kernel: wifi: rtl8xxxu: fix use-after-free from rx_urb_wq on stop — rated Moderate by Red Hat. Released 2026-09-11, updated 2026-10-24.
Affected:
No fix planned:
Not affected:
Fix deferred
Workarounds / mitigations:
Field changes observed since this record was first indexed.
Connected by shared product, vendor, weakness, or advisory.
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