/usr/include/x86_64-linux-gnu/qt5/QtSvg/ is in libqt5svg5-dev 5.9.5-0ubuntu1.
This file is owned by root:root, with mode 0o755.
..
/usr/include/x86_64-linux-gnu/qt5/QtSvg/QGraphicsSvgItem
/usr/include/x86_64-linux-gnu/qt5/QtSvg/QSvgGenerator
/usr/include/x86_64-linux-gnu/qt5/QtSvg/QSvgRenderer
/usr/include/x86_64-linux-gnu/qt5/QtSvg/QSvgWidget
/usr/include/x86_64-linux-gnu/qt5/QtSvg/QtSvg
/usr/include/x86_64-linux-gnu/qt5/QtSvg/QtSvgDepends
/usr/include/x86_64-linux-gnu/qt5/QtSvg/QtSvgVersion
/usr/include/x86_64-linux-gnu/qt5/QtSvg/qgraphicssvgitem.h
/usr/include/x86_64-linux-gnu/qt5/QtSvg/qsvggenerator.h
/usr/include/x86_64-linux-gnu/qt5/QtSvg/qsvgrenderer.h
/usr/include/x86_64-linux-gnu/qt5/QtSvg/qsvgwidget.h
/usr/include/x86_64-linux-gnu/qt5/QtSvg/qtsvgglobal.h
/usr/include/x86_64-linux-gnu/qt5/QtSvg/qtsvgversion.h