hardened-malloc 16.0.2026060601

Global allocator using GrapheneOS allocator
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Global allocator using GrapheneOS allocator

  • Released under the same license as the GrapheneOS allocator.
  • The major version follows the GrapheneOS allocator version.
  • Use it, harden your memories, spread the love!

Configuration

  • Build requires a C23 supporting compiler!
  • We follow upstream configuration closely (except CONFIG_WERROR).
  • Feature light enables light mode, otherwise you're in default mode.
  • Feature seal enables CONFIG_SEAL_METADATA, noop if target env isn't GNU.
  • GlobalAlloc::dealloc uses hardened allocator extension free_sized to verify size.

Example

  • Add the following to your Cargo.toml.
  • Add features = ["light"] as necessary.
# Default allocator:
# GrapheneOS does not support 32-bit.
[target.'cfg(target_pointer_width = "64")'.dependencies]
hardened-malloc = { version = "16.0" }

With that in dependencies, you may change your default global allocator:

// Set global allocator to GrapheneOS allocator.
#[cfg(target_pointer_width = "64")]
#[global_allocator]
static GLOBAL: hardened_malloc::HardenedMalloc = hardened_malloc::HardenedMalloc;

Maintained by Ali Polatel. Up-to-date sources can be found at https://git.sr.ht/~alip/syd and bugs/patches can be submitted by email to ~alip/sydbox-devel@lists.sr.ht. Exherbo related bugs/issues can be submitted to https://gitlab.exherbo.org/groups/sydbox/-/issues. Discuss in #sydbox on Libera Chat.