fuzz #5
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| # Phase 26 — continuous fuzzing of the untrusted-input parsers. | |
| # | |
| # Runs each libFuzzer target for a fixed budget against its committed corpus. | |
| # A crash (ASan/UBSan abort, OOM, timeout) fails the job and the reproducer | |
| # is uploaded as an artifact. Scheduled weekly; also dispatchable on demand. | |
| name: fuzz | |
| on: | |
| schedule: | |
| # Mondays 04:30 UTC. | |
| - cron: "30 4 * * 1" | |
| workflow_dispatch: | |
| inputs: | |
| seconds: | |
| description: "Fuzz budget per target (seconds)" | |
| required: false | |
| default: "1800" | |
| permissions: | |
| contents: read | |
| jobs: | |
| fuzz: | |
| name: ${{ matrix.target }} | |
| runs-on: ubuntu-24.04 | |
| timeout-minutes: 45 | |
| strategy: | |
| fail-fast: false | |
| matrix: | |
| include: | |
| - target: fuzz_rle_parser | |
| corpus: rle | |
| - target: fuzz_life_parser | |
| corpus: life | |
| - target: fuzz_csv_reader | |
| corpus: csv | |
| - target: fuzz_checkpoint_loader | |
| corpus: checkpoint | |
| env: | |
| CC: clang | |
| CXX: clang++ | |
| FUZZ_SECONDS: ${{ github.event.inputs.seconds || '1800' }} | |
| steps: | |
| - name: Checkout | |
| uses: actions/checkout@v7 | |
| - name: Install system dependencies | |
| run: | | |
| sudo apt-get update | |
| sudo apt-get install -y \ | |
| cmake ninja-build pkg-config clang \ | |
| libgmp-dev libmpfr-dev libgsl-dev \ | |
| libx11-dev libpthread-stubs0-dev \ | |
| libtclap-dev libgtest-dev | |
| - name: Configure (Clang, fuzzers on) | |
| run: | | |
| cmake -S . -B build-fuzz -G Ninja \ | |
| -DCMAKE_BUILD_TYPE=Debug \ | |
| -DCMAKE_C_COMPILER=clang \ | |
| -DCMAKE_CXX_COMPILER=clang++ \ | |
| -DBUILD_TESTS=ON \ | |
| -DBUILD_EXAMPLES=OFF \ | |
| -DALEPH_BUILD_X11_VIEWER=OFF \ | |
| -DALEPH_BUILD_FUZZERS=ON | |
| - name: Build target | |
| run: cmake --build build-fuzz --target ${{ matrix.target }} | |
| - name: Fuzz | |
| run: | | |
| set -euo pipefail | |
| BIN=build-fuzz/Tests/fuzz/${{ matrix.target }} | |
| CORPUS=Tests/fuzz/corpus/${{ matrix.corpus }} | |
| mkdir -p artifacts | |
| echo "Fuzzing ${{ matrix.target }} for ${FUZZ_SECONDS}s" | |
| ASAN_OPTIONS=detect_leaks=0 \ | |
| UBSAN_OPTIONS=print_stacktrace=1 \ | |
| "$BIN" \ | |
| -max_total_time="${FUZZ_SECONDS}" \ | |
| -rss_limit_mb=4096 \ | |
| -timeout=25 \ | |
| -print_final_stats=1 \ | |
| -artifact_prefix=artifacts/ \ | |
| "$CORPUS" | |
| - name: Upload crash reproducers | |
| if: failure() | |
| uses: actions/upload-artifact@v7 | |
| with: | |
| name: fuzz-crash-${{ matrix.target }} | |
| if-no-files-found: ignore | |
| path: artifacts/ |