/usr/share/pulseaudio/alsa-mixer/paths/ is in pulseaudio 1:8.0-0ubuntu3.
This file is owned by root:root, with mode 0o755.
..
/usr/share/pulseaudio/alsa-mixer/paths/analog-input-aux.conf
/usr/share/pulseaudio/alsa-mixer/paths/analog-input-dock-mic.conf
/usr/share/pulseaudio/alsa-mixer/paths/analog-input-fm.conf
/usr/share/pulseaudio/alsa-mixer/paths/analog-input-front-mic.conf
/usr/share/pulseaudio/alsa-mixer/paths/analog-input-headphone-mic.conf
/usr/share/pulseaudio/alsa-mixer/paths/analog-input-headset-mic.conf
/usr/share/pulseaudio/alsa-mixer/paths/analog-input-internal-mic-always.conf
/usr/share/pulseaudio/alsa-mixer/paths/analog-input-internal-mic.conf
/usr/share/pulseaudio/alsa-mixer/paths/analog-input-linein.conf
/usr/share/pulseaudio/alsa-mixer/paths/analog-input-mic-line.conf
/usr/share/pulseaudio/alsa-mixer/paths/analog-input-mic.conf
/usr/share/pulseaudio/alsa-mixer/paths/analog-input-mic.conf.common
/usr/share/pulseaudio/alsa-mixer/paths/analog-input-rear-mic.conf
/usr/share/pulseaudio/alsa-mixer/paths/analog-input-tvtuner.conf
/usr/share/pulseaudio/alsa-mixer/paths/analog-input-video.conf
/usr/share/pulseaudio/alsa-mixer/paths/analog-input.conf
/usr/share/pulseaudio/alsa-mixer/paths/analog-input.conf.common
/usr/share/pulseaudio/alsa-mixer/paths/analog-output-headphones-2.conf
/usr/share/pulseaudio/alsa-mixer/paths/analog-output-headphones.conf
/usr/share/pulseaudio/alsa-mixer/paths/analog-output-lineout.conf
/usr/share/pulseaudio/alsa-mixer/paths/analog-output-mono.conf
/usr/share/pulseaudio/alsa-mixer/paths/analog-output-speaker-always.conf
/usr/share/pulseaudio/alsa-mixer/paths/analog-output-speaker.conf
/usr/share/pulseaudio/alsa-mixer/paths/analog-output.conf
/usr/share/pulseaudio/alsa-mixer/paths/analog-output.conf.common
/usr/share/pulseaudio/alsa-mixer/paths/hdmi-output-0.conf
/usr/share/pulseaudio/alsa-mixer/paths/hdmi-output-1.conf
/usr/share/pulseaudio/alsa-mixer/paths/hdmi-output-2.conf
/usr/share/pulseaudio/alsa-mixer/paths/hdmi-output-3.conf
/usr/share/pulseaudio/alsa-mixer/paths/hdmi-output-4.conf
/usr/share/pulseaudio/alsa-mixer/paths/hdmi-output-5.conf
/usr/share/pulseaudio/alsa-mixer/paths/hdmi-output-6.conf
/usr/share/pulseaudio/alsa-mixer/paths/hdmi-output-7.conf
/usr/share/pulseaudio/alsa-mixer/paths/iec958-stereo-output.conf