/usr/src/dpdk-rte-kni-17.11.1/ethtool/igb/ is in dpdk-rte-kni-dkms 17.11.1-6.
This file is owned by root:root, with mode 0o755.
..
/usr/src/dpdk-rte-kni-17.11.1/ethtool/igb/e1000_82575.c
/usr/src/dpdk-rte-kni-17.11.1/ethtool/igb/e1000_82575.h
/usr/src/dpdk-rte-kni-17.11.1/ethtool/igb/e1000_api.c
/usr/src/dpdk-rte-kni-17.11.1/ethtool/igb/e1000_api.h
/usr/src/dpdk-rte-kni-17.11.1/ethtool/igb/e1000_defines.h
/usr/src/dpdk-rte-kni-17.11.1/ethtool/igb/e1000_hw.h
/usr/src/dpdk-rte-kni-17.11.1/ethtool/igb/e1000_i210.c
/usr/src/dpdk-rte-kni-17.11.1/ethtool/igb/e1000_i210.h
/usr/src/dpdk-rte-kni-17.11.1/ethtool/igb/e1000_mac.c
/usr/src/dpdk-rte-kni-17.11.1/ethtool/igb/e1000_mac.h
/usr/src/dpdk-rte-kni-17.11.1/ethtool/igb/e1000_manage.c
/usr/src/dpdk-rte-kni-17.11.1/ethtool/igb/e1000_manage.h
/usr/src/dpdk-rte-kni-17.11.1/ethtool/igb/e1000_mbx.c
/usr/src/dpdk-rte-kni-17.11.1/ethtool/igb/e1000_mbx.h
/usr/src/dpdk-rte-kni-17.11.1/ethtool/igb/e1000_nvm.c
/usr/src/dpdk-rte-kni-17.11.1/ethtool/igb/e1000_nvm.h
/usr/src/dpdk-rte-kni-17.11.1/ethtool/igb/e1000_osdep.h
/usr/src/dpdk-rte-kni-17.11.1/ethtool/igb/e1000_phy.c
/usr/src/dpdk-rte-kni-17.11.1/ethtool/igb/e1000_phy.h
/usr/src/dpdk-rte-kni-17.11.1/ethtool/igb/e1000_regs.h
/usr/src/dpdk-rte-kni-17.11.1/ethtool/igb/igb.h
/usr/src/dpdk-rte-kni-17.11.1/ethtool/igb/igb_ethtool.c
/usr/src/dpdk-rte-kni-17.11.1/ethtool/igb/igb_main.c
/usr/src/dpdk-rte-kni-17.11.1/ethtool/igb/igb_param.c
/usr/src/dpdk-rte-kni-17.11.1/ethtool/igb/igb_regtest.h
/usr/src/dpdk-rte-kni-17.11.1/ethtool/igb/igb_vmdq.c
/usr/src/dpdk-rte-kni-17.11.1/ethtool/igb/igb_vmdq.h
/usr/src/dpdk-rte-kni-17.11.1/ethtool/igb/kcompat.h