/usr/src/linux-headers-4.10.0-42-generic/ is in linux-headers-4.10.0-42-generic 4.10.0-42.46~16.04.1.
This file is owned by root:root, with mode 0o755.
There are a lot of files here (10479 total).
We're only showing the immediate contents of /usr/src/linux-headers-4.10.0-42-generic
.