void load_ucode_intel_ap(void)
{
	struct mc_saved_data *mc_saved_data_p;
	struct ucode_cpu_info uci;
	unsigned long *mc_saved_in_initrd_p;
	unsigned long initrd_start_addr;
#ifdef CONFIG_X86_32
	unsigned long *initrd_start_p;

	mc_saved_in_initrd_p =
		(unsigned long *)__pa_nodebug(mc_saved_in_initrd);
	mc_saved_data_p = (struct mc_saved_data *)__pa_nodebug(&mc_saved_data);
	initrd_start_p = (unsigned long *)__pa_nodebug(&initrd_start);
	initrd_start_addr = (unsigned long)__pa_nodebug(*initrd_start_p);
#else
	mc_saved_data_p = &mc_saved_data;
	mc_saved_in_initrd_p = mc_saved_in_initrd;
	initrd_start_addr = initrd_start;
#endif

	/*
	 * If there is no valid ucode previously saved in memory, no need to
	 * update ucode on this AP.
	 */
	if (mc_saved_data_p->mc_saved_count == 0)
		return;

	collect_cpu_info_early(&uci);
	load_microcode(mc_saved_data_p, mc_saved_in_initrd_p,
		       initrd_start_addr, &uci);
	apply_microcode_early(&uci, true);
}

The product performs operations on a memory buffer, but it reads from or writes to a memory location outside the buffer's intended boundary. This may result in read or write operations on unexpected memory locations that could be linked to other variables, data structures, or internal program data.