Corpus for getpgid:

Coverage	Program
2824	gettid-rt_sigqueueinfo-perf_event_open-socket$inet6_tcp-getpgid-rt_sigqueueinfo-fcntl$getownex-rt_sigqueueinfo-setsockopt$inet6_tcp_int-bind$inet6-connect$inet6-setsockopt$inet6_tcp_TCP_MD5SIG-setsockopt$sock_int-setsockopt$inet6_tcp_int-getpgid-syz_mount_image$vfat
2347	perf_event_open-socket$netlink-sendmsg$nl_generic-syz_io_uring_setup-io_uring_enter-socketpair$unix-close-read-io_uring_register$IORING_REGISTER_PERSONALITY-getpgid-signalfd-sendmsg$NFNL_MSG_ACCT_GET_CTRZERO-execveat-syz_open_procfs
612	seccomp$SECCOMP_SET_MODE_FILTER_LISTENER-getpgid-sched_getscheduler
113	getpid-perf_event_open-perf_event_open-getpgid-perf_event_open-fork-ptrace-perf_event_open-epoll_create-socket$nl_generic-epoll_ctl$EPOLL_CTL_ADD