hardened_malloc
A security-focused memory allocator providing hardened malloc API with extensive heap corruption protections for modern 64-bit systems.
What is hardened_malloc?
hardened_malloc is a security-focused replacement for standard memory allocators like glibc's malloc, jemalloc, and others. It provides extensive hardening against heap corruption vulnerabilities such as use-after-free, double-free, and buffer overflows while maintaining reasonable performance. It is designed for modern 64-bit systems and integrates with Android's Bionic libc, musl, and glibc.
System developers, security engineers, and maintainers of Android/Linux-based operating systems who need a production-ready allocator with strong security guarantees against memory corruption exploits.
Developers choose hardened_malloc for its comprehensive security features that go beyond typical allocators, offering deterministic protections, out-of-line metadata, and fine-grained randomization. It is a strict upgrade over traditional allocators for threat models where security is prioritized over raw allocation speed.
Overview
Hardened allocator designed for modern systems. It has integration into Android's Bionic libc and can be used externally with musl and glibc as a dynamic library for use on other Linux-based platforms. It will gain more portability/integration over time.
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