early_console_setup (char *cmdline)
{
	int earlycons = 0;

#ifdef CONFIG_SERIAL_SGI_L1_CONSOLE
	{
		extern int sn_serial_console_early_setup(void);
		if (!sn_serial_console_early_setup())
			earlycons++;
	}
#endif
#ifdef CONFIG_EFI_PCDP
	if (!efi_setup_pcdp_console(cmdline))
		earlycons++;
#endif
	if (!simcons_register())
		earlycons++;

	return (earlycons) ? 0 : -1;
}

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.