Abstract
This document defines the inner workings of PaX's reference counter protection and aims to create a bigger community around the project.
It begins with an overview of the PaX Project and reference counter protection, goes into a higher-level explanation of how it is implemented, and then goes deep inside the implementation's code, enabling readers to more easily port the feature to new platforms.
Special focus is placed on the reasoning for the PowerPC implementation, developed by the author while learning the internals of this protection mechanism.
more here......https://forums.grsecurity.net/viewtopic.php?f=7&t=4173#p15110
This document defines the inner workings of PaX's reference counter protection and aims to create a bigger community around the project.
It begins with an overview of the PaX Project and reference counter protection, goes into a higher-level explanation of how it is implemented, and then goes deep inside the implementation's code, enabling readers to more easily port the feature to new platforms.
Special focus is placed on the reasoning for the PowerPC implementation, developed by the author while learning the internals of this protection mechanism.
more here......https://forums.grsecurity.net/viewtopic.php?f=7&t=4173#p15110