What is the ruling on kissing the curtains of the Kaaba, the Black Stone, and the Mus'haf (Quran)?

Kissing any place on Earth is an innovation (bid'ah) except for the Black Stone, in emulation of the Prophet, peace and blessings be upon him. It is not permissible to kiss the curtains of the Kaaba, or the chambers, or the Yemeni Corner, or the Qur'an, nor is it permissible to wipe oneself with them if it is for the purpose of seeking blessings.