Corpus for signalfd4:

Coverage	Program
1397	perf_event_open-prlimit64-signalfd4
237	ioperm-signalfd4
208	perf_event_open-perf_event_open-write-mq_open-close-openat-fallocate-pwritev2-syz_open_dev$tty20-signalfd4-signalfd4-ioctl$AUTOFS_DEV_IOCTL_OPENMOUNT-ioctl$EXT4_IOC_MOVE_EXT-ioctl$EXT4_IOC_CLEAR_ES_CACHE-ioctl$BTRFS_IOC_QGROUP_CREATE
147	mmap-signalfd4
104	ioctl$KDGKBLED-perf_event_open-perf_event_open-socket$netlink-sendmsg$netlink-syz_genetlink_get_family_id$ethtool-openat$hpet-openat-ioctl$FS_IOC_GETFSMAP-ioctl$sock_FIOGETOWN-syz_genetlink_get_family_id$ethtool-sendmsg$ETHTOOL_MSG_LINKMODES_GET-perf_event_open-signalfd4-openat
43	perf_event_open-perf_event_open-socket$inet6-bind$inet6-pread64-connect$inet6-openat-pread64-ioctl$LOOP_CTL_GET_FREE-ioctl$LOOP_CTL_REMOVE-openat$cdrom-ioctl$CDROM_SEND_PACKET-ioctl$AUTOFS_DEV_IOCTL_PROTOVER-signalfd4-ioctl$CDROM_SELECT_SPEED-syz_mount_image$ext4-pipe2$9p
30	openat-openat$hpet-socket$inet_udp-connect-socket$inet_udp-ioctl$sock_inet_SIOCSIFFLAGS-perf_event_open-close_range-signalfd4-setsockopt$inet_mreqn-perf_event_open-socket$nl_netfilter-sendmsg$IPCTNL_MSG_EXP_GET-ioctl$AUTOFS_DEV_IOCTL_FAIL-bind$packet-ioctl$sock_inet_SIOCSIFFLAGS
27	close_range-signalfd4-signalfd4