Corpus for ioctl$FIONREAD:

Coverage	Program
515	syz_open_dev$tty1-ioctl$FIONREAD
504	syz_open_dev$tty20-ioctl$FIONREAD
374	syz_open_dev$tty20-ioctl$FIONREAD
225	perf_event_open-epoll_ctl$EPOLL_CTL_ADD-syz_open_dev$tty20-ioctl$FIONREAD
207	syz_open_dev$tty1-ioctl$FIONREAD
188	openat$procfs-ioctl$FIONREAD
169	syz_open_dev$tty20-ioctl$TIOCL_PASTESEL-ioctl$FIONREAD
167	openat$nvram-ioctl$FIONREAD
164	openat$nvram-ioctl$FIONREAD
120	mknod$loop-creat-ioctl$FIONREAD
118	openat$nvram-stat-setresuid-ioctl$FIONREAD
106	syz_open_dev$tty20-ioctl$TIOCVHANGUP-ioctl$FIONREAD