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OSS-Fuzz - continuous fuzzing for open source software.
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jonathanmetzman 6e38a76220
[infra] Improve test speed (#5118) 
Make unittests take 20 seconds to run instead of 35.
Make integration tests take 50 seconds to run instead of 6 minutes.
Make CI take 6 minutes instead of 12 minutes.

1. Allow running tests in parallel. Locally this takes the time for running all tests (including integration tests) from 6 minutes to ~50 seconds. We don't do parallel by default since it doesn't really save any time unless running integration tests on my machine (probably due to overhead of starting ~70 processes). This also speeds up CI from about 12 minutes to 6 minutes  (since github actions has 2 cores per machine).
2. Fix how we run tests. I'm not exactly sure why, but the method we used for discovering tests, recursing through every directory and passing to unittest caused the build/infra tests to execute twice. Fixing this makes running unittests take ~20 seconds instead of ~35.

This change also uses pytest for running tests since it's easy to use it to run tests in parallel.
This change was made possible by #5113
 		2021-02-05 06:10:42 -08:00
.github/workflows [infra] Improve test speed (#5118) 2021-02-05 06:10:42 -08:00
docs Update bazel.md 2021-02-01 22:53:11 -08:00
infra [infra] Improve test speed (#5118) 2021-02-05 06:10:42 -08:00
projects [systemd]: add Luca Boccassi to cc (#5119) 2021-02-04 15:41:07 -08:00
.dockerignore Reland 55d9a81. (#4269) 2020-08-06 14:33:08 -07:00
.gitignore Improve CIFuzz tests (#4868) 2020-12-18 10:37:56 -08:00
.pylintrc Replace terms that are uninclusive. (#5045) 2021-01-25 08:41:34 -08:00
.style.yapf [infra] Add presubmit script (#3196) 2020-01-10 10:19:42 -08:00
CONTRIBUTING.md Delete unnecessary files and fix format in some MD pages (#4115) 2020-07-16 15:27:29 -07:00
LICENSE Create LICENSE 2016-10-03 12:24:25 -07:00
README.md Fix missed AFL++ changes in README.md 2021-01-26 15:29:02 -08:00
oss-fuzz.iml Add jekyll generator for docs. (#2660) 2019-08-06 13:29:19 -07:00

README.md

OSS-Fuzz: Continuous Fuzzing for Open Source Software

Fuzz testing is a well-known technique for uncovering programming errors in software. Many of these detectable errors, like buffer overflow, can have serious security implications. Google has found thousands of security vulnerabilities and stability bugs by deploying guided in-process fuzzing of Chrome components, and we now want to share that service with the open source community.

In cooperation with the Core Infrastructure Initiative and the OpenSSF, OSS-Fuzz aims to make common open source software more secure and stable by combining modern fuzzing techniques with scalable, distributed execution.

We support the libFuzzer, AFL++, and Honggfuzz fuzzing engines in combination with Sanitizers, as well as ClusterFuzz, a distributed fuzzer execution environment and reporting tool.

Currently, OSS-Fuzz supports C/C++, Rust, Go and Python code. Other languages supported by LLVM may work too. OSS-Fuzz supports fuzzing x86_64 and i386 builds.

Overview

OSS-Fuzz process diagram

Documentation

Read our detailed documentation to learn how to use OSS-Fuzz.

Trophies

As of January 2021, OSS-Fuzz has found over 25,000 bugs in 375 open source projects.

Blog posts