I can confirm this bug. It seems this is already fixed upstream; can you please cherry pick this https://github.com/SELinuxProject/selinux/commit/5a8d8c499b2ef80eaa7b5abe2ec68d7101e613bf patch?
- Bug#822679: Attempts to mount /proc as a regular user Yuri D'Elia
- Bug#822679: closed by Laurent Bigonville <bi...... Yuri D'Elia
- Bug#822679: [DSE-Dev] Bug#822679: closed by La... Laurent Bigonville
- Bug#822679: [DSE-Dev] Bug#822679: closed b... Yuri D'Elia
- Bug#822679: [DSE-Dev] Bug#822679: clos... Laurent Bigonville
- Bug#822679: Attempts to mount /proc as a regular u... cgzones
