CVE-2022-48619

Se descubrió un problema en drivers/input/input.c en el kernel de Linux anterior a la versión 5.17.10. Un atacante puede provocar una denegación de servicio (pánico) porque input_set_capability maneja mal la situación en la que un código de evento queda fuera de un mapa de bits.

A vulnerability was found in drivers/input/input.c in the Linux Kernel, where the input_set_capability() function mishandles scenarios where an event code is outside the bitmap. This issue can lead to a kernel panic when the event code exceeds the bitmap for the specified event type, which could allow an attacker to cause a kernel crash and potential disruption of services.

It was discovered that the device input subsystem in the Linux kernel did not properly handle the case when an event code falls outside of a bitmap. A local attacker could use this to cause a denial of service. 黄思聪 discovered that the NFC Controller Interface implementation in the Linux kernel did not properly handle certain memory allocation failure conditions, leading to a null pointer dereference vulnerability. A local attacker could use this to cause a denial of service.