Corpus for openat$null:

Coverage	Program
1797	perf_event_open-capset-openat$sr-ioctl$DVD_READ_STRUCT-ioctl$TIOCGPGRP-timer_create-ioctl$NS_GET_PARENT-openat$null-socket$netlink-ioctl$AUTOFS_DEV_IOCTL_READY-ioctl$AUTOFS_DEV_IOCTL_READY
658	perf_event_open-capset-openat$sr-ioctl$DVD_READ_STRUCT-write$hidraw-ioctl$NS_GET_PARENT-openat$null-ioctl$AUTOFS_DEV_IOCTL_READY-ioctl$AUTOFS_DEV_IOCTL_READY