Linux Kernel UCSI Type-C NULL Pointer Dereference Vulnerability

A vulnerability in the Linux kernel's USB Type-C UCSI (USB Type-C Connector System Interface) implementation could lead to a NULL pointer dereference. This issue arises because resources are released before all associated threads have finished using them. The vulnerability has been addressed by modifying the resource management to ensure that resources are only released after the relevant workqueue has completed, preventing premature deallocation.

Impact

Exploitation of this vulnerability could lead to a NULL pointer dereference, causing a crash or undefined behavior in the kernel.