/usr/src/linux-oracle-headers-4.15.0-1008/samples/ is in linux-oracle-headers-4.15.0-1008 4.15.0-1008.10~16.04.1.
This file is owned by root:root, with mode 0o755.
..
/usr/src/linux-oracle-headers-4.15.0-1008/samples/Kconfig
/usr/src/linux-oracle-headers-4.15.0-1008/samples/Makefile
/usr/src/linux-oracle-headers-4.15.0-1008/samples/auxdisplay/
/usr/src/linux-oracle-headers-4.15.0-1008/samples/auxdisplay/Makefile
/usr/src/linux-oracle-headers-4.15.0-1008/samples/blackfin/
/usr/src/linux-oracle-headers-4.15.0-1008/samples/blackfin/Makefile
/usr/src/linux-oracle-headers-4.15.0-1008/samples/bpf/
/usr/src/linux-oracle-headers-4.15.0-1008/samples/bpf/Makefile
/usr/src/linux-oracle-headers-4.15.0-1008/samples/bpf/lwt_len_hist.sh
/usr/src/linux-oracle-headers-4.15.0-1008/samples/bpf/run_cookie_uid_helper_example.sh
/usr/src/linux-oracle-headers-4.15.0-1008/samples/bpf/tc_l2_redirect.sh
/usr/src/linux-oracle-headers-4.15.0-1008/samples/bpf/test_cgrp2_sock.sh
/usr/src/linux-oracle-headers-4.15.0-1008/samples/bpf/test_cgrp2_sock2.sh
/usr/src/linux-oracle-headers-4.15.0-1008/samples/bpf/test_cgrp2_tc.sh
/usr/src/linux-oracle-headers-4.15.0-1008/samples/bpf/test_cls_bpf.sh
/usr/src/linux-oracle-headers-4.15.0-1008/samples/bpf/test_ipip.sh
/usr/src/linux-oracle-headers-4.15.0-1008/samples/bpf/test_lwt_bpf.sh
/usr/src/linux-oracle-headers-4.15.0-1008/samples/bpf/test_tunnel_bpf.sh
/usr/src/linux-oracle-headers-4.15.0-1008/samples/configfs/
/usr/src/linux-oracle-headers-4.15.0-1008/samples/configfs/Makefile
/usr/src/linux-oracle-headers-4.15.0-1008/samples/connector/
/usr/src/linux-oracle-headers-4.15.0-1008/samples/connector/Makefile
/usr/src/linux-oracle-headers-4.15.0-1008/samples/hidraw/
/usr/src/linux-oracle-headers-4.15.0-1008/samples/hidraw/Makefile
/usr/src/linux-oracle-headers-4.15.0-1008/samples/hw_breakpoint/
/usr/src/linux-oracle-headers-4.15.0-1008/samples/hw_breakpoint/Makefile
/usr/src/linux-oracle-headers-4.15.0-1008/samples/kdb/
/usr/src/linux-oracle-headers-4.15.0-1008/samples/kdb/Makefile
/usr/src/linux-oracle-headers-4.15.0-1008/samples/kfifo/
/usr/src/linux-oracle-headers-4.15.0-1008/samples/kfifo/Makefile
/usr/src/linux-oracle-headers-4.15.0-1008/samples/kobject/
/usr/src/linux-oracle-headers-4.15.0-1008/samples/kobject/Makefile
/usr/src/linux-oracle-headers-4.15.0-1008/samples/kprobes/
/usr/src/linux-oracle-headers-4.15.0-1008/samples/kprobes/Makefile
/usr/src/linux-oracle-headers-4.15.0-1008/samples/livepatch/
/usr/src/linux-oracle-headers-4.15.0-1008/samples/livepatch/Makefile
/usr/src/linux-oracle-headers-4.15.0-1008/samples/mei/
/usr/src/linux-oracle-headers-4.15.0-1008/samples/mei/Makefile
/usr/src/linux-oracle-headers-4.15.0-1008/samples/mic/
/usr/src/linux-oracle-headers-4.15.0-1008/samples/mic/mpssd/
/usr/src/linux-oracle-headers-4.15.0-1008/samples/mic/mpssd/Makefile
/usr/src/linux-oracle-headers-4.15.0-1008/samples/pktgen/
/usr/src/linux-oracle-headers-4.15.0-1008/samples/pktgen/functions.sh
/usr/src/linux-oracle-headers-4.15.0-1008/samples/pktgen/parameters.sh
/usr/src/linux-oracle-headers-4.15.0-1008/samples/pktgen/pktgen_bench_xmit_mode_netif_receive.sh
/usr/src/linux-oracle-headers-4.15.0-1008/samples/pktgen/pktgen_bench_xmit_mode_queue_xmit.sh
/usr/src/linux-oracle-headers-4.15.0-1008/samples/pktgen/pktgen_sample01_simple.sh
/usr/src/linux-oracle-headers-4.15.0-1008/samples/pktgen/pktgen_sample02_multiqueue.sh
/usr/src/linux-oracle-headers-4.15.0-1008/samples/pktgen/pktgen_sample03_burst_single_flow.sh
/usr/src/linux-oracle-headers-4.15.0-1008/samples/pktgen/pktgen_sample04_many_flows.sh
/usr/src/linux-oracle-headers-4.15.0-1008/samples/pktgen/pktgen_sample05_flow_per_thread.sh
/usr/src/linux-oracle-headers-4.15.0-1008/samples/pktgen/pktgen_sample06_numa_awared_queue_irq_affinity.sh
/usr/src/linux-oracle-headers-4.15.0-1008/samples/rpmsg/
/usr/src/linux-oracle-headers-4.15.0-1008/samples/rpmsg/Makefile
/usr/src/linux-oracle-headers-4.15.0-1008/samples/seccomp/
/usr/src/linux-oracle-headers-4.15.0-1008/samples/seccomp/Makefile
/usr/src/linux-oracle-headers-4.15.0-1008/samples/sockmap/
/usr/src/linux-oracle-headers-4.15.0-1008/samples/sockmap/Makefile
/usr/src/linux-oracle-headers-4.15.0-1008/samples/statx/
/usr/src/linux-oracle-headers-4.15.0-1008/samples/statx/Makefile
/usr/src/linux-oracle-headers-4.15.0-1008/samples/timers/
/usr/src/linux-oracle-headers-4.15.0-1008/samples/timers/Makefile
/usr/src/linux-oracle-headers-4.15.0-1008/samples/trace_events/
/usr/src/linux-oracle-headers-4.15.0-1008/samples/trace_events/Makefile
/usr/src/linux-oracle-headers-4.15.0-1008/samples/trace_printk/
/usr/src/linux-oracle-headers-4.15.0-1008/samples/trace_printk/Makefile
/usr/src/linux-oracle-headers-4.15.0-1008/samples/uhid/
/usr/src/linux-oracle-headers-4.15.0-1008/samples/uhid/Makefile
/usr/src/linux-oracle-headers-4.15.0-1008/samples/v4l/
/usr/src/linux-oracle-headers-4.15.0-1008/samples/v4l/Makefile
/usr/src/linux-oracle-headers-4.15.0-1008/samples/vfio-mdev/
/usr/src/linux-oracle-headers-4.15.0-1008/samples/vfio-mdev/Makefile
/usr/src/linux-oracle-headers-4.15.0-1008/samples/watchdog/
/usr/src/linux-oracle-headers-4.15.0-1008/samples/watchdog/Makefile