CVE-2025-38113 ACPI: CPPC: Fix NULL pointer dereference when nosmp is used

In the Linux kernel, the following vulnerability has been resolved: ACPI: CPPC: Fix NULL pointer dereference when nosmp is used With nosmp in cmdline, other CPUs are not brought up, leaving their cpcdescptr NULL. CPU0's iteration via foreachpossiblecpu dereferences these NULL pointers, causing...