/usr/src/linux-headers-4.4.0-93-generic/Kconfig is in linux-headers-4.4.0-93-generic 4.4.0-93.116.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/src/linux-headers-4.4.0-93-generic/../linux-headers-4.4.0-93/Kconfig