Panic while decompressing

[frewsxcv]

extern crate brotli;

use std::io::Read;
use brotli::Decompressor;

fn main() {
    let mut input = vec![];
    let _ = Decompressor::new(&b"\x51\xac\x00\x48\x2f\x73\x14\x01\x14\x00\x00\x01\x00\x14\x14\xff\x00\x02\x00\x00\x00\x00\x00\x64\x14\x24\x14\x14\x14\x14\x14\x80\x00\x00\x14\xff\xff\x00\x00\x14\x14\x14\x14\x14\x14\x80\x00\x80".to_vec() as &[u8]).read_to_end(&mut input);
}

Crash discovered using afl.rs

[ende76]

I'm repeating myself, but I still can't believe how valuable afl is… I tried setting it up on my machine, but failed to get it to work, even after compiling rustc from source. I was a bit hesitant to abandon my multirust install, but maybe I need to go all the way from source. It does seem like afl would be worth it.

[frewsxcv]

If you install Vagrant, you can use the Vagrantfile that lives in the repo. It'll set up Rust, Cargo, and AFL to versions that are confirmed to work with afl.rs; this is how I am testing everything. I'm planning to write better documentation and a tutorial sometime this week for it to explain how to set it up and use it step by step. Let me know if you need any help!