Linux Kernel UCSI Driver NULL Pointer Dereference Vulnerability

A vulnerability in the Linux kernel's UCSI (USB Type-C Connector System Interface) driver for DisplayPort has been addressed. The issue was a NULL pointer dereference, which could occur if the driver did not properly manage the timing of task execution. The patch ensures that the UCSI driver waits for all tasks in the 'ucsi_displayport_work' workqueue to complete before proceeding with the removal of a partner, preventing potential crashes or undefined behavior.

Impact

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