CVE-2026-31721
MediumSummary
W jądrze Linuxa rozwiązano podatność związaną z inicjalizacją listy i spinlocków w module f_hid. Problem występował podczas konfiguracji i powiązania gadżetu HID oraz używania uzyskanego deskryptora pliku w EPOLL_CTL_ADD po odłączeniu UDC.
Risk Assessment
Podatność ta może prowadzić do nieprzewidzianego zachowania systemu, co może wpłynąć na stabilność i bezpieczeństwo aplikacji korzystających z gadżetów HID.
Recommendation
Zaleca się aktualizację jądra Linux do najnowszej wersji, aby usunąć tę podatność oraz monitorowanie systemu pod kątem nieautoryzowanych operacji na gadżetach HID.
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Original NVD description (English source)
In the Linux kernel, the following vulnerability has been resolved: usb: gadget: f_hid: move list and spinlock inits from bind to alloc There was an issue when you did the following: - setup and bind an hid gadget - open /dev/hidg0 - use the resulting fd in EPOLL_CTL_ADD - unbind the UDC - bind th
Vulnerability data from NVD (NIST) · CISA KEV · EPSS

