int sr_tray_move(struct cdrom_device_info *cdi, int pos)
{
	Scsi_CD *cd = cdi->handle;
	struct packet_command cgc;

	memset(&cgc, 0, sizeof(struct packet_command));
	cgc.cmd[0] = GPCMD_START_STOP_UNIT;
	cgc.cmd[4] = (pos == 0) ? 0x03 /* close */ : 0x02 /* eject */ ;
	cgc.data_direction = DMA_NONE;
	cgc.timeout = IOCTL_TIMEOUT;
	return sr_do_ioctl(cd, &cgc);
}

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.