/usr/share/perl5/ is in libxml-stream-perl 1.24-2+deb9u1.
This file is owned by root:root, with mode 0o755.
..
/usr/share/perl5/XML/Stream/IO/
/usr/share/perl5/XML/Stream/IO/Select/
/usr/share/perl5/XML/
/usr/share/perl5/XML/Stream/
/usr/share/perl5/XML/Stream/IO/Select/Win32.pm
/usr/share/perl5/XML/Stream/Namespace.pm
/usr/share/perl5/XML/Stream/Node.pm
/usr/share/perl5/XML/Stream/Parser/
/usr/share/perl5/XML/Stream/Parser/DTD.pm
/usr/share/perl5/XML/Stream/Parser.pm
/usr/share/perl5/XML/Stream/Tools.pm
/usr/share/perl5/XML/Stream/Tree.pm
/usr/share/perl5/XML/Stream/XPath/
/usr/share/perl5/XML/Stream/XPath/Op.pm
/usr/share/perl5/XML/Stream/XPath/Query.pm
/usr/share/perl5/XML/Stream/XPath/Value.pm
/usr/share/perl5/XML/Stream/XPath.pm
/usr/share/perl5/XML/Stream.pm