In the Linux kernel, the following vulnerability has been resolved: cpufreq: CPPC: Fix possible null-ptr-deref for cpufreq_cpu_get_raw() cpufreq_cpu_get_raw() may return NULL if the cpu is not in policy->cpus cpu mask and it will cause null pointer dereference.
https://git.kernel.org/stable/c/e9b39f1924b76abc18881e4ce899fb232dd23d12
https://git.kernel.org/stable/c/e07570a8f2cfc51260c6266cb8e1bd4777a610d6
https://git.kernel.org/stable/c/a78e7207564258db6e373e86294a85f9d646d35a
https://git.kernel.org/stable/c/a357b63fd21e4b2791008c2175ba7a8c235ebce1
https://git.kernel.org/stable/c/65fe2f7fdafe2698a343661800434b3f2e51041e