CVE-2024-36898

In the Linux kernel, the following vulnerability has been resolved:

gpiolib: cdev: fix uninitialised kfifo

If a line is requested with debounce, and that results in debouncing

in software, and the line is subsequently reconfigured to enable edge

detection then the allocation of the kfifo to contain edge events is

overlooked. This results in events being written to and read from an

uninitialised kfifo. Read events are returned to userspace.

Initialise the kfifo in the case where the software debounce is

already active.