Linux Kernel VCHIq NULL Pointer Dereference Vulnerability

A vulnerability in the Linux kernel's VCHIq component can lead to a NULL pointer dereference. The issue arises in the 'vchiq_get_state()' function, which can return a NULL pointer. This vulnerability has been addressed by modifying the 'vchiq_dump_platform_instances' function to properly handle these NULL pointer cases and prevent the dereference.

Impact

Exploitation of this vulnerability can lead to a NULL pointer dereference, causing a kernel crash or potentially allowing for arbitrary code execution in kernel space.