Exploring GrapheneOS secure allocator: Hardened Malloc
GrapheneOS is a mobile operating system based on Android and focusing on privacy and security. To enhance further the security of their product, GrapheneOS developers introduced a new libc allocator : hardened malloc. This allocator has a security-focused design in mind to protect processes against common memory corruption vulnerabilities. This article will explain in details its internal architecture and how security mitigation are implemented from a security researcher point of view. Looking