This file is indexed.

/etc/network/ is in bridge-utils 1.5-13+deb9u1.

This file is owned by root:root, with mode 0o755.

File Mime Type Owner Mode Size
..
/etc/network/if-post-down.d/ root:root 0o755
/etc/network/if-post-down.d/bridge root:root 0o777
/etc/network/if-pre-up.d/ root:root 0o755
/etc/network/if-pre-up.d/bridge root:root 0o777