static int sr_play_trkind(struct cdrom_device_info *cdi,
		struct cdrom_ti *ti)

{
	struct scsi_cd *cd = cdi->handle;
	struct packet_command cgc;
	int result;

	memset(&cgc, 0, sizeof(struct packet_command));
	cgc.timeout = IOCTL_TIMEOUT;
	cgc.cmd[0] = GPCMD_PLAYAUDIO_TI;
	cgc.cmd[4] = ti->cdti_trk0;
	cgc.cmd[5] = ti->cdti_ind0;
	cgc.cmd[7] = ti->cdti_trk1;
	cgc.cmd[8] = ti->cdti_ind1;
	cgc.data_direction = DMA_NONE;

	result = sr_do_ioctl(cd, &cgc);
	if (result == -EDRIVE_CANT_DO_THIS)
		result = sr_fake_playtrkind(cdi, ti);

	return result;
}

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.