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syzkaller is an unsupervised coverage-guided kernel fuzzer
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Dmitry Vyukov 5957825305 pkg/cover: speed up report generation 
Implement several performance improvements:
1. Don't run addr2line for the whole binary.
Frequently only a small part of the vmlinux is covered,
running addr2line over whole binary ahead of time takes insane amount of time.
Instread run addr2line incrementally only for symbols that have any coverage.
2. Run addr2line in parallel.
3. Instead of running objdump -d on the whole object file to find
coverage points, look for call instructions in the .text section directly.
Currently this is implemented only for amd64.

Also this Go change cuts another 7 seconds:
f92c64045f
(faster interation over DWARF compile units, should speed up syz-check as well).

Update #2006
2020-09-28 09:41:25 +02:00
.github .github: reorder CODEOWNERS owner entries 2020-09-15 19:34:30 +02:00
dashboard sys/linux: descriptions for /dev/vmci 2020-09-25 14:12:45 +02:00
docs docs/coverage.md: update coverage document 2020-09-26 17:47:37 +02:00
executor executor: make exit code during fail() depend on fault injection 2020-09-22 10:12:23 +02:00
pkg pkg/cover: speed up report generation 2020-09-28 09:41:25 +02:00
prog prog: allow arbitrary long lines in serialized programs 2020-09-20 15:12:12 +02:00
sys sys/linux: descriptions for /dev/vmci 2020-09-25 14:12:45 +02:00
syz-ci syz-ci: disable CONFIG_DEBUG_INFO_BTF during patch testing 2020-09-26 12:58:18 +02:00
syz-fuzzer all: integrate with mac80211_hwsim 2020-09-22 10:12:23 +02:00
syz-hub prog: control program length 2020-03-13 13:16:53 +01:00
syz-manager syz-manager: expose function coverage 2020-09-28 09:41:25 +02:00
tools tools/syz-cover: add cmdprof profiling 2020-09-28 09:41:25 +02:00
vendor vendor/github.com/golangci/golangci-lint: update to v1.31 2020-09-15 19:34:30 +02:00
vm vm/vmimpl: update console code for the new unix package 2020-09-15 19:34:30 +02:00
.clang-format buildbot: add .travis.yml 2017-07-28 13:25:48 +02:00
.gitattributes all: mark auto-generated files 2020-07-29 12:55:55 +02:00
.gitignore .gitignore: add *.tmp 2020-07-29 12:55:05 +02:00
.golangci.yml tools/syz-linter: add custom linter 2020-07-04 15:05:30 +02:00
AUTHORS docs: clarify coverage point in different compliers 2020-09-15 09:39:09 +02:00
CODE_OF_CONDUCT.md Create CODE_OF_CONDUCT.md 2019-02-04 12:05:04 +01:00
codecov.yml codecov.yml: suppress coverage errors even more 2020-07-01 22:57:25 +02:00
CONTRIBUTORS docs/linux: add instructions for fuzzing on VMware hosted hypervisors 2020-09-23 17:13:28 +02:00
fuzzbuzz.yaml all: add missing copyright statements 2020-05-18 11:34:42 +02:00
go.mod vendor/github.com/golangci/golangci-lint: update to v1.31 2020-09-15 19:34:30 +02:00
go.sum vendor/github.com/golangci/golangci-lint: update to v1.31 2020-09-15 19:34:30 +02:00
LICENSE initial commit 2015-10-12 10:16:57 +02:00
Makefile Makefile: add new make target for syz-cover tool 2020-09-26 17:47:37 +02:00
README.md README.md: fix oss-fuzz badge link 2020-05-21 17:36:56 +02:00

README.md

syzkaller - kernel fuzzer

CI Status fuzzit OSS-Fuzz Go Report Card Coverage Status GoDoc License

syzkaller ([siːzˈkɔːlə]) is an unsupervised coverage-guided kernel fuzzer.
Supported OSes: Akaros, FreeBSD, Fuchsia, gVisor, Linux, NetBSD, OpenBSD, Windows.

Mailing list: syzkaller@googlegroups.com (join on web or by email).

Found bugs: Akaros, Darwin/XNU, FreeBSD, Linux, NetBSD, OpenBSD, Windows.

Documentation

Initially, syzkaller was developed with Linux kernel fuzzing in mind, but now it's being extended to support other OS kernels as well. Most of the documentation at this moment is related to the Linux kernel. For other OS kernels check: Akaros, Darwin/XNU, FreeBSD, Fuchsia, NetBSD, OpenBSD, Windows, gVisor.

Disclaimer

This is not an official Google product.