cargo-fuzz

Fuzz Rust codebases with cargo-fuzz and libFuzzer to identify bugs.

Updated Mar 27, 2026
One-click install
npx skills add https://github.com/erenisiklar/Pusula --skill cargo-fuzz-erenisiklar
Or copy as Structured Prompt for Agent▼
Please help me install this Agent Skill.
Skill: cargo-fuzz
Source: https://github.com/erenisiklar/Pusula/tree/main/.claude/skills/cargo-fuzz
Command: npx skills add https://github.com/erenisiklar/Pusula --skill cargo-fuzz-erenisiklar

SYSTEM DOCUMENTATION & REQUIREMENTS

What problem does it solve?

Fuzzing Rust codebases helps detect bugs and security vulnerabilities early by automatically generating diverse inputs and exercising edge cases.

Core Features & Use Cases

  • Integrates cargo-fuzz with libFuzzer to streamline fuzz testing for Rust crates.
  • Supports harness creation, sanitizer integration, and coverage-driven fuzzing workflows.
  • Use Case: Maintain robust Rust libraries and binaries by continuously fuzzing with cargo-fuzz to uncover crashes and memory-safety issues.

Quick Start

Install cargo-fuzz and nightly Rust, then run cargo fuzz init to start fuzzing your crate.

Frequently Asked Questions about cargo-fuzz

High-intent search queries and answers about installing and using this skill.

FAQPage Schema
How do I fuzz Rust code to find memory safety issues?▼

Fuzz Rust code to find memory safety issues by integrating cargo-fuzz with the libFuzzer backend to automatically generate diverse inputs and exercise edge cases. This streamlines fuzz testing to uncover crashes and vulnerabilities early.

What do I need to setup fuzzing with cargo-fuzz?▼

To setup fuzzing with cargo-fuzz, you must install nightly Rust and the cargo-fuzz tool. Once installed, run `cargo fuzz init` in your crate directory to generate the automated harnesses required for your fuzzing campaigns.

Can I use sanitizers when fuzzing Rust crates?▼

Yes, you can use sanitizers when fuzzing Rust crates. The cargo-fuzz workflow supports sanitizer integration alongside coverage-driven fuzzing campaigns to help deterministically identify bugs and memory-safety issues in your codebase.

How does coverage-driven fuzzing work for Rust libraries?▼

Coverage-driven fuzzing for Rust libraries works by compiling your code with specific fuzzing flags via cargo-fuzz and libFuzzer. It automatically generates diverse inputs to exercise edge cases, tracking code coverage to efficiently uncover crashes.

Is nightly Rust required to run cargo fuzz campaigns?▼

Yes, nightly Rust is required to run cargo fuzz campaigns. The cargo-fuzz tool relies on the nightly compiler to enable deterministic fuzzing, compilation with fuzzing flags, and sanitizer integration for your Rust projects.