rust-fuzz / Cargo Fuzz
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cargo fuzz
A cargo subcommand for using libFuzzer! Easy to use! No need to recompile LLVM!
Installation
$ cargo install cargo-fuzz
Note: libFuzzer needs LLVM sanitizer support, so this only works on x86-64
Linux and x86-64 macOS for now. This also needs a nightly Rust toolchain since
it uses some unstable command-line flags. Finally, you'll also need a C++
compiler with C++11 support.
If you have an old version of cargo fuzz, you can upgrade with this command:
$ cargo install -f cargo-fuzz
Usage
cargo fuzz init
Initialize a cargo fuzz project for your crate!
cargo fuzz add <target>
Create a new fuzzing target!
cargo fuzz run <target>
Run a fuzzing target and find bugs!
cargo fuzz fmt <target> <input>
Print the std::fmt::Debug output for a test case. Useful when your fuzz target
takes an Arbitrary input!
cargo fuzz tmin <target> <input>
Found a failing input? Minify it to the smallest input that causes that failure for easier debugging!
cargo fuzz cmin <target>
Minify your corpus of input files!
cargo fuzz coverage <target>
Generate coverage information on the fuzzed program!
Documentation
Documentation can be found in the Rust Fuzz Book.
You can also always find the full command-line options that are available with
--help:
$ cargo fuzz --help
Trophy case
The trophy case has a list of bugs
found by cargo fuzz (and others). Did cargo fuzz and libFuzzer find a bug
for you? Add it to the trophy case!
License
cargo-fuzz is distributed under the terms of both the MIT license and the
Apache License (Version 2.0).
See LICENSE-APACHE and LICENSE-MIT for details.