Corpus for ioctl$TCFLSH:

Coverage	Program
2080	syz_open_dev$tty1-ioctl$TIOCSTI-syz_open_procfs-pread64-ioctl$TCFLSH
1787	openat$ptmx-ioctl$TCFLSH
1241	syz_open_dev$tty1-ioctl$TCFLSH
150	syz_open_dev$tty1-ioctl$TCFLSH
147	syz_open_dev$tty1-ioctl$TCFLSH