Linux Kernel Clock Parent Map NULL Pointer Dereference Vulnerability

A vulnerability in the Linux kernel's clock management for Qualcomm devices can lead to a NULL pointer dereference. This issue occurs in the dispcc-sm6350 component when a clk_rcg2 clock has a parent but lacks a defined parent_map. The missing parent_map can cause a NULL pointer dereference during operations that set the clock rate, potentially leading to a system crash.

Impact

Exploitation of this vulnerability causes a NULL pointer dereference, which can lead to a system crash.

Remediation

The vulnerability has been addressed by adding the missing parent_map property for the affected clock. Users should ensure they are using a version of the Linux kernel that includes this fix.