libfuzz based tests

.bazelrc

@@ -38,6 +38,41 @@ build:release --compilation_mode=opt
 # LLVM compiler for building C/C++ dependencies.
 build:llvm --crosstool_top=@llvm_toolchain//:toolchain
 build:llvm --define compiler=llvm
+build:llvm --copt -fno-sanitize=vptr,function
+build:llvm --linkopt -fno-sanitize=vptr,function
+
+build:asan --copt -fsanitize=address,undefined
+build:asan --copt -fno-omit-frame-pointer
+build:asan --linkopt -fsanitize=address,undefined
+build:asan --copt -fno-sanitize=vptr,function
+build:asan --linkopt -fno-sanitize=vptr,function
+build:asan --copt -DADDRESS_SANITIZER=1
+build:asan --copt -D__SANITIZE_ADDRESS__
+build:asan --linkopt -ldl
+
+build:llvm-asan --config=llvm
+build:llvm-asan --config=asan
+build:llvm-asan --linkopt -fuse-ld=ld.lld
+
+build:fuzz --define=gotags=libfuzzer
+build:fuzz --config=llvm-asan
+build:fuzz --copt=-fsanitize=fuzzer-no-link
+build:fuzz --linkopt=-fsanitize=fuzzer
+build:fuzz --copt=-fno-omit-frame-pointer
+build:fuzz --define=FUZZING_ENGINE=libfuzzer
+build:fuzz --copt=-DFUZZING_BUILD_MODE_UNSAFE_FOR_PRODUCTION
+build:fuzz --linkopt -Wl,--no-as-needed
+build:fuzz --define=gc_goopts=-d=libfuzzer
+build:fuzz --run_under=//tools:fuzz_wrapper
+build:fuzz --compilation_mode=opt
+
+test:fuzz --local_test_jobs="HOST_CPUS*.5"
+
+test:fuzzit --config=fuzz
+test:fuzzit --test_env=FUZZIT_API_KEY
+test:fuzzit --test_env=PRYSM_BUILD_IMAGE=gcr.io/prysmaticlabs/prysm-fuzzit:v0.11.0
+test:fuzzit --test_timeout=1200
+test:fuzzit --run_under=//tools:fuzzit_wrapper
 
 # Build binary with cgo symbolizer for debugging / profiling.
 build:cgo_symbolizer --config=llvm

.buildkite-bazelrc

@@ -49,3 +49,11 @@ test --define kafka_enabled=true
 
 build --bes_backend=grpcs://builds.prylabs.net:1985
 build --bes_results_url=https://builds.prylabs.net/invocation/
+
+# Disable flaky test detection for fuzzing.
+test:fuzz --flaky_test_attempts=1
+
+# Expose test environment variables in CI
+test:fuzzit --test_env=GITHUB_REF
+test:fuzzit --test_env=GITHUB_SHA
+test:fuzzit --test_env=DOCKER_HOST

BUILD.bazel

@@ -4,6 +4,7 @@ load("@com_github_atlassian_bazel_tools//goimports:def.bzl", "goimports")
 load("@io_kubernetes_build//defs:run_in_workspace.bzl", "workspace_binary")
 load("@io_bazel_rules_go//go:def.bzl", "nogo")
 load("@graknlabs_bazel_distribution//common:rules.bzl", "assemble_targz", "assemble_versioned")
+load("@bazel_skylib//rules:common_settings.bzl", "string_setting")
 
 prefix = "github.com/prysmaticlabs/prysm"
 
@@ -12,6 +13,7 @@ exports_files([
 ])
 
 # gazelle:prefix github.com/prysmaticlabs/prysm
+# gazelle:map_kind go_library go_library @prysm//tools/go:def.bzl
 gazelle(
     name = "gazelle",
     prefix = prefix,
@@ -120,3 +122,12 @@ toolchain(
     toolchain = "@rules_foreign_cc//tools/build_defs/native_tools:built_cmake",
     toolchain_type = "@rules_foreign_cc//tools/build_defs:cmake_toolchain",
 )
+
+string_setting(
+    name = "gotags",
+    build_setting_default = "",
+    values = [
+        "",
+        "libfuzzer",
+    ],
+)

README.md

@@ -1,6 +1,7 @@
 # Prysm: An Ethereum 2.0 Client Written in Go
 
 [![Build status](https://badge.buildkite.com/b555891daf3614bae4284dcf365b2340cefc0089839526f096.svg?branch=master)](https://buildkite.com/prysmatic-labs/prysm)
+[![fuzzit](https://app.fuzzit.dev/badge?org_id=prysmaticlabs-gh)](https://app.fuzzit.dev/orgs/prysmaticlabs-gh/dashboard)
 [![ETH2.0_Spec_Version 0.11.1](https://img.shields.io/badge/ETH2.0%20Spec%20Version-v0.11.1-blue.svg)](https://github.com/ethereum/eth2.0-specs/tree/v0.11.1)
 [![Discord](https://user-images.githubusercontent.com/7288322/34471967-1df7808a-efbb-11e7-9088-ed0b04151291.png)](https://discord.gg/KSA7rPr)
 [![Gitter](https://badges.gitter.im/Join%20Chat.svg)](https://gitter.im/prysmaticlabs/geth-sharding?utm_source=badge&utm_medium=badge&utm_campaign=pr-badge)

WORKSPACE

@@ -43,6 +43,8 @@ load("@prysm//tools/cross-toolchain:rbe_toolchains_config.bzl", "rbe_toolchains_
 
 rbe_toolchains_config()
 
+load("@bazel_tools//tools/build_defs/repo:http.bzl", "http_archive")
+
 http_archive(
     name = "bazel_skylib",
     sha256 = "97e70364e9249702246c0e9444bccdc4b847bed1eb03c5a3ece4f83dfe6abc44",
@@ -88,6 +90,13 @@ http_archive(
     ],
 )
 
+http_archive(
+    name = "fuzzit_linux",
+    build_file_content = "exports_files([\"fuzzit\"])",
+    sha256 = "9ca76ac1c22d9360936006efddf992977ebf8e4788ded8e5f9d511285c9ac774",
+    urls = ["https://github.com/fuzzitdev/fuzzit/releases/download/v2.4.76/fuzzit_Linux_x86_64.zip"],
+)
+
 git_repository(
     name = "graknlabs_bazel_distribution",
     commit = "962f3a7e56942430c0ec120c24f9e9f2a9c2ce1a",
@@ -129,6 +138,13 @@ container_pull(
     repository = "frolvlad/alpine-glibc",
 )
 
+container_pull(
+    name = "fuzzit_base",
+    digest = "sha256:24a39a4360b07b8f0121eb55674a2e757ab09f0baff5569332fefd227ee4338f",
+    registry = "gcr.io",
+    repository = "fuzzit-public/stretch-llvm8",
+)
+
 load("@prysm//third_party/herumi:herumi.bzl", "bls_dependencies")
 
 bls_dependencies()
@@ -139,7 +155,8 @@ go_rules_dependencies()
 
 go_register_toolchains(nogo = "@//:nogo")
 
-load("@bazel_gazelle//:deps.bzl", "gazelle_dependencies", "go_repository")
+load("@bazel_gazelle//:deps.bzl", "gazelle_dependencies")
+load("@prysm//tools/go:def.bzl", "go_repository")
 
 gazelle_dependencies()
 
@@ -266,9 +283,9 @@ all_content = """filegroup(name = "all", srcs = glob(["**"]), visibility = ["//v
 
 http_archive(
     name = "rules_foreign_cc",
-    sha256 = "450563dc2938f38566a59596bb30a3e905fbbcc35b3fff5a1791b122bc140465",
-    strip_prefix = "rules_foreign_cc-456425521973736ef346d93d3d6ba07d807047df",
-    url = "https://github.com/bazelbuild/rules_foreign_cc/archive/456425521973736ef346d93d3d6ba07d807047df.zip",
+    sha256 = "b85ce66a3410f7370d1a9a61dfe3a29c7532b7637caeb2877d8d0dfd41d77abb",
+    strip_prefix = "rules_foreign_cc-3515b20a2417c4dd51c8a4a8cac1f6ecf3c6d934",
+    url = "https://github.com/bazelbuild/rules_foreign_cc/archive/3515b20a2417c4dd51c8a4a8cac1f6ecf3c6d934.zip",
 )
 
 load("@rules_foreign_cc//:workspace_definitions.bzl", "rules_foreign_cc_dependencies")
@@ -285,6 +302,16 @@ http_archive(
     urls = ["https://github.com/edenhill/librdkafka/archive/v1.2.1.tar.gz"],
 )
 
+http_archive(
+    name = "sigp_beacon_fuzz_corpora",
+    build_file = "//third_party:beacon-fuzz/corpora.BUILD",
+    sha256 = "42993d0901a316afda45b4ba6d53c7c21f30c551dcec290a4ca131c24453d1ef",
+    strip_prefix = "beacon-fuzz-corpora-bac24ad78d45cc3664c0172241feac969c1ac29b",
+    urls = [
+        "https://github.com/sigp/beacon-fuzz-corpora/archive/bac24ad78d45cc3664c0172241feac969c1ac29b.tar.gz",
+    ],
+)
+
 # External dependencies
 
 go_repository(
@@ -1607,6 +1634,34 @@ go_repository(
     name = "com_github_ferranbt_fastssz",
     commit = "06015a5d84f9e4eefe2c21377ca678fa8f1a1b09",
     importpath = "github.com/ferranbt/fastssz",
+    nofuzz = True,
+)
+
+http_archive(
+    name = "sszgen",  # Hack because we don't want to build this binary with libfuzzer, but need it to build.
+    build_file_content = """
+load("@io_bazel_rules_go//go:def.bzl", "go_library", "go_binary")
+
+go_library(
+    name = "go_default_library",
+    srcs = [
+        "sszgen/main.go",
+        "sszgen/marshal.go",
+        "sszgen/size.go",
+        "sszgen/unmarshal.go",
+    ],
+    importpath = "github.com/ferranbt/fastssz/sszgen",
+    visibility = ["//visibility:private"],
+)
+
+go_binary(
+    name = "sszgen",
+    embed = [":go_default_library"],
+    visibility = ["//visibility:public"],
+)
+    """,
+    strip_prefix = "fastssz-06015a5d84f9e4eefe2c21377ca678fa8f1a1b09",
+    urls = ["https://github.com/ferranbt/fastssz/archive/06015a5d84f9e4eefe2c21377ca678fa8f1a1b09.tar.gz"],
 )
 
 go_repository(

beacon-chain/BUILD.bazel

@@ -1,4 +1,5 @@
-load("@io_bazel_rules_go//go:def.bzl", "go_binary", "go_library", "go_test")
+load("@prysm//tools/go:def.bzl", "go_library")
+load("@io_bazel_rules_go//go:def.bzl", "go_binary", "go_test")
 load("@io_bazel_rules_docker//go:image.bzl", "go_image")
 load("@io_bazel_rules_docker//container:container.bzl", "container_bundle")
 load("//tools:go_image.bzl", "go_image_alpine", "go_image_debug")

beacon-chain/archiver/BUILD.bazel

@@ -1,4 +1,5 @@
-load("@io_bazel_rules_go//go:def.bzl", "go_library", "go_test")
+load("@prysm//tools/go:def.bzl", "go_library")
+load("@io_bazel_rules_go//go:def.bzl", "go_test")
 
 go_library(
     name = "go_default_library",

beacon-chain/blockchain/BUILD.bazel

@@ -1,4 +1,5 @@
-load("@io_bazel_rules_go//go:def.bzl", "go_library", "go_test")
+load("@prysm//tools/go:def.bzl", "go_library")
+load("@io_bazel_rules_go//go:def.bzl", "go_test")
 
 go_library(
     name = "go_default_library",

beacon-chain/blockchain/testing/BUILD.bazel

@@ -1,11 +1,14 @@
-load("@io_bazel_rules_go//go:def.bzl", "go_library")
+load("@prysm//tools/go:def.bzl", "go_library")
 
 go_library(
     name = "go_default_library",
     testonly = True,
     srcs = ["mock.go"],
     importpath = "github.com/prysmaticlabs/prysm/beacon-chain/blockchain/testing",
-    visibility = ["//beacon-chain:__subpackages__"],
+    visibility = [
+        "//beacon-chain:__subpackages__",
+        "//fuzz:__pkg__",
+    ],
     deps = [
         "//beacon-chain/core/epoch/precompute:go_default_library",
         "//beacon-chain/core/feed/block:go_default_library",

beacon-chain/cache/BUILD.bazel

@@ -1,4 +1,5 @@
-load("@io_bazel_rules_go//go:def.bzl", "go_library", "go_test")
+load("@prysm//tools/go:def.bzl", "go_library")
+load("@io_bazel_rules_go//go:def.bzl", "go_test")
 
 go_library(
     name = "go_default_library",
@@ -17,6 +18,7 @@ go_library(
     importpath = "github.com/prysmaticlabs/prysm/beacon-chain/cache",
     visibility = [
         "//beacon-chain:__subpackages__",
+        "//fuzz:__pkg__",
         "//tools:__subpackages__",
     ],
     deps = [

beacon-chain/cache/depositcache/BUILD.bazel

@@ -1,4 +1,5 @@
-load("@io_bazel_rules_go//go:def.bzl", "go_library", "go_test")
+load("@prysm//tools/go:def.bzl", "go_library")
+load("@io_bazel_rules_go//go:def.bzl", "go_test")
 
 go_library(
     name = "go_default_library",

beacon-chain/core/blocks/BUILD.bazel

@@ -1,4 +1,5 @@
-load("@io_bazel_rules_go//go:def.bzl", "go_library", "go_test")
+load("@prysm//tools/go:def.bzl", "go_library")
+load("@io_bazel_rules_go//go:def.bzl", "go_test")
 
 go_library(
     name = "go_default_library",
@@ -9,6 +10,7 @@ go_library(
     importpath = "github.com/prysmaticlabs/prysm/beacon-chain/core/blocks",
     visibility = [
         "//beacon-chain:__subpackages__",
+        "//fuzz:__pkg__",
         "//shared/testutil:__pkg__",
     ],
     deps = [

beacon-chain/core/blocks/spectest/BUILD.bazel

@@ -1,4 +1,5 @@
-load("@io_bazel_rules_go//go:def.bzl", "go_library", "go_test")
+load("@prysm//tools/go:def.bzl", "go_library")
+load("@io_bazel_rules_go//go:def.bzl", "go_test")
 
 go_library(
     name = "go_default_library",

beacon-chain/core/blocks/spectest/block_header_test.go

@@ -11,7 +11,7 @@ import (
 	ethpb "github.com/prysmaticlabs/ethereumapis/eth/v1alpha1"
 	"github.com/prysmaticlabs/go-ssz"
 	"github.com/prysmaticlabs/prysm/beacon-chain/core/blocks"
-	beaconstate "github.com/prysmaticlabs/prysm/beacon-chain/state"
+	stateTrie "github.com/prysmaticlabs/prysm/beacon-chain/state"
 	pb "github.com/prysmaticlabs/prysm/proto/beacon/p2p/v1"
 	"github.com/prysmaticlabs/prysm/shared/params/spectest"
 	"github.com/prysmaticlabs/prysm/shared/testutil"
@@ -43,7 +43,7 @@ func runBlockHeaderTest(t *testing.T, config string) {
 			if err := ssz.Unmarshal(preBeaconStateFile, preBeaconStateBase); err != nil {
 				t.Fatalf("Failed to unmarshal: %v", err)
 			}
-			preBeaconState, err := beaconstate.InitializeFromProto(preBeaconStateBase)
+			preBeaconState, err := stateTrie.InitializeFromProto(preBeaconStateBase)
 			if err != nil {
 				t.Fatal(err)
 			}

beacon-chain/core/blocks/spectest/block_processing_test.go

@@ -16,7 +16,7 @@ import (
 	"github.com/prysmaticlabs/go-ssz"
 	"github.com/prysmaticlabs/prysm/beacon-chain/core/helpers"
 	"github.com/prysmaticlabs/prysm/beacon-chain/core/state"
-	beaconstate "github.com/prysmaticlabs/prysm/beacon-chain/state"
+	stateTrie "github.com/prysmaticlabs/prysm/beacon-chain/state"
 	pb "github.com/prysmaticlabs/prysm/proto/beacon/p2p/v1"
 	"github.com/prysmaticlabs/prysm/shared/params/spectest"
 	"github.com/prysmaticlabs/prysm/shared/testutil"
@@ -44,7 +44,7 @@ func runBlockProcessingTest(t *testing.T, config string) {
 			if err := ssz.Unmarshal(preBeaconStateFile, beaconStateBase); err != nil {
 				t.Fatalf("Failed to unmarshal: %v", err)
 			}
-			beaconState, err := beaconstate.InitializeFromProto(beaconStateBase)
+			beaconState, err := stateTrie.InitializeFromProto(beaconStateBase)
 			if err != nil {
 				t.Fatal(err)
 			}

beacon-chain/core/epoch/BUILD.bazel

@@ -1,4 +1,5 @@
-load("@io_bazel_rules_go//go:def.bzl", "go_library", "go_test")
+load("@prysm//tools/go:def.bzl", "go_library")
+load("@io_bazel_rules_go//go:def.bzl", "go_test")
 
 go_library(
     name = "go_default_library",

beacon-chain/core/epoch/precompute/BUILD.bazel

@@ -1,4 +1,5 @@
-load("@io_bazel_rules_go//go:def.bzl", "go_library", "go_test")
+load("@prysm//tools/go:def.bzl", "go_library")
+load("@io_bazel_rules_go//go:def.bzl", "go_test")
 
 go_library(
     name = "go_default_library",

beacon-chain/core/feed/BUILD.bazel

@@ -1,4 +1,4 @@
-load("@io_bazel_rules_go//go:def.bzl", "go_library")
+load("@prysm//tools/go:def.bzl", "go_library")
 
 go_library(
     name = "go_default_library",

beacon-chain/core/feed/block/BUILD.bazel

@@ -1,4 +1,4 @@
-load("@io_bazel_rules_go//go:def.bzl", "go_library")
+load("@prysm//tools/go:def.bzl", "go_library")
 
 go_library(
     name = "go_default_library",

beacon-chain/core/feed/operation/BUILD.bazel

@@ -1,4 +1,4 @@
-load("@io_bazel_rules_go//go:def.bzl", "go_library")
+load("@prysm//tools/go:def.bzl", "go_library")
 
 go_library(
     name = "go_default_library",

beacon-chain/core/feed/state/BUILD.bazel

@@ -1,4 +1,4 @@
-load("@io_bazel_rules_go//go:def.bzl", "go_library")
+load("@prysm//tools/go:def.bzl", "go_library")
 
 go_library(
     name = "go_default_library",

beacon-chain/core/helpers/BUILD.bazel

@@ -1,4 +1,5 @@
-load("@io_bazel_rules_go//go:def.bzl", "go_library", "go_test")
+load("@prysm//tools/go:def.bzl", "go_library")
+load("@io_bazel_rules_go//go:def.bzl", "go_test")
 
 go_library(
     name = "go_default_library",

beacon-chain/core/helpers/spectest/BUILD.bazel

@@ -1,4 +1,5 @@
-load("@io_bazel_rules_go//go:def.bzl", "go_library", "go_test")
+load("@prysm//tools/go:def.bzl", "go_library")
+load("@io_bazel_rules_go//go:def.bzl", "go_test")
 
 go_library(
     name = "go_default_library",

beacon-chain/core/state/BUILD.bazel

@@ -1,4 +1,5 @@
-load("@io_bazel_rules_go//go:def.bzl", "go_library", "go_test")
+load("@prysm//tools/go:def.bzl", "go_library")
+load("@io_bazel_rules_go//go:def.bzl", "go_test")
 
 # gazelle:exclude testdata
 
@@ -13,6 +14,7 @@ go_library(
     visibility = [
         "//beacon-chain:__subpackages__",
         "//endtoend:__pkg__",
+        "//fuzz:__pkg__",
         "//shared/interop:__pkg__",
         "//shared/testutil:__pkg__",
         "//tools/benchmark-files-gen:__pkg__",

beacon-chain/core/state/interop/BUILD.bazel

@@ -1,4 +1,4 @@
-load("@io_bazel_rules_go//go:def.bzl", "go_library")
+load("@prysm//tools/go:def.bzl", "go_library")
 
 go_library(
     name = "go_default_library",