/usr/share/texmf/fonts/map/dvips/ is in lmodern 2.004.5-3.
This file is owned by root:root, with mode 0o755.
..
/usr/share/texmf/fonts/map/dvips/lm/
/usr/share/texmf/fonts/map/dvips/lm/cork-lm.map
/usr/share/texmf/fonts/map/dvips/lm/lm-cs.map
/usr/share/texmf/fonts/map/dvips/lm/lm-ec.map
/usr/share/texmf/fonts/map/dvips/lm/lm-l7x.map
/usr/share/texmf/fonts/map/dvips/lm/lm-math.map
/usr/share/texmf/fonts/map/dvips/lm/lm-qx.map
/usr/share/texmf/fonts/map/dvips/lm/lm-rep-cmother.map
/usr/share/texmf/fonts/map/dvips/lm/lm-rep-cmtext-interpolated.map
/usr/share/texmf/fonts/map/dvips/lm/lm-rep-cmtext.map
/usr/share/texmf/fonts/map/dvips/lm/lm-rep-cstext.map
/usr/share/texmf/fonts/map/dvips/lm/lm-rep-pltext.map
/usr/share/texmf/fonts/map/dvips/lm/lm-rep-vntext.map
/usr/share/texmf/fonts/map/dvips/lm/lm-rm.map
/usr/share/texmf/fonts/map/dvips/lm/lm-t5.map
/usr/share/texmf/fonts/map/dvips/lm/lm-texnansi.map
/usr/share/texmf/fonts/map/dvips/lm/lm-ts1.map
/usr/share/texmf/fonts/map/dvips/lm/lm.map