In OSMMapPMRGeneric of pmr_os.c, there is a possible way to leverage a system call to system call...

In OSMMapPMRGeneric of pmr_os.c, there is a possible way to leverage a system call to system call to maliciously expand the VMA out of bounds due to a logic error in the code. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation.