/usr/include/Inventor/misc/ is in libcoin80-dev 3.1.4~abc9f50+dfsg1-1.
This file is owned by root:root, with mode 0o755.
..
/usr/include/Inventor/misc/CoinResources.h
/usr/include/Inventor/misc/SoAudioDevice.h
/usr/include/Inventor/misc/SoAuditorList.h
/usr/include/Inventor/misc/SoBase.h
/usr/include/Inventor/misc/SoBasic.h
/usr/include/Inventor/misc/SoByteStream.h
/usr/include/Inventor/misc/SoCallbackList.h
/usr/include/Inventor/misc/SoChildList.h
/usr/include/Inventor/misc/SoContextHandler.h
/usr/include/Inventor/misc/SoGLBigImage.h
/usr/include/Inventor/misc/SoGLCubeMapImage.h
/usr/include/Inventor/misc/SoGLDriverDatabase.h
/usr/include/Inventor/misc/SoGLImage.h
/usr/include/Inventor/misc/SoGeo.h
/usr/include/Inventor/misc/SoGlyph.h
/usr/include/Inventor/misc/SoJavaScriptEngine.h
/usr/include/Inventor/misc/SoLightPath.h
/usr/include/Inventor/misc/SoNormalGenerator.h
/usr/include/Inventor/misc/SoNotRec.h
/usr/include/Inventor/misc/SoNotification.h
/usr/include/Inventor/misc/SoProto.h
/usr/include/Inventor/misc/SoProtoInstance.h
/usr/include/Inventor/misc/SoScriptEngine.h
/usr/include/Inventor/misc/SoState.h
/usr/include/Inventor/misc/SoTempPath.h
/usr/include/Inventor/misc/SoTranReceiver.h
/usr/include/Inventor/misc/SoTranSender.h
/usr/include/Inventor/misc/SoTranscribe.h