AFL++ Fuzz #46
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| name: "AFL++ Fuzz" | |
| on: | |
| push: | |
| branches: [main] | |
| paths: | |
| - "tests/fuzz/**" | |
| - "libs/**/src/**" | |
| - "cmake/Fuzzing.cmake" | |
| pull_request: | |
| branches: [main] | |
| paths: | |
| - "tests/fuzz/**" | |
| - "libs/**/src/**" | |
| - "cmake/Fuzzing.cmake" | |
| schedule: | |
| - cron: "0 3 * * *" # nightly long-run at 03:00 UTC | |
| workflow_dispatch: | |
| inputs: | |
| mode: | |
| description: "Fuzz mode: smoke (60s) or long (1h)" | |
| required: false | |
| default: "smoke" | |
| type: choice | |
| options: | |
| - smoke | |
| - long | |
| env: | |
| TARGET: secure_ops | |
| ARTIFACT_CORPUS: afl-seed-corpus | |
| ARTIFACT_FINDINGS: afl-findings | |
| jobs: | |
| afl-fuzz: | |
| runs-on: ubuntu-latest | |
| timeout-minutes: 90 | |
| steps: | |
| - name: Checkout | |
| uses: actions/checkout@v4 | |
| - name: Install dependencies | |
| run: | | |
| sudo apt-get update | |
| sudo apt-get install -y build-essential cmake ninja-build afl++ | |
| - name: Determine fuzz duration | |
| id: duration | |
| run: | | |
| if [ "${{ github.event_name }}" = "schedule" ]; then | |
| echo "seconds=3600" >> "$GITHUB_OUTPUT" | |
| echo "mode=long" >> "$GITHUB_OUTPUT" | |
| elif [ "${{ github.event_name }}" = "workflow_dispatch" ] && [ "${{ inputs.mode }}" = "long" ]; then | |
| echo "seconds=3600" >> "$GITHUB_OUTPUT" | |
| echo "mode=long" >> "$GITHUB_OUTPUT" | |
| else | |
| echo "seconds=60" >> "$GITHUB_OUTPUT" | |
| echo "mode=smoke" >> "$GITHUB_OUTPUT" | |
| fi | |
| - name: Download previous seed corpus (best-effort) | |
| if: steps.duration.outputs.mode == 'long' | |
| run: | | |
| if command -v python3 &>/dev/null && [ -f scripts/ci/afl_corpus_manager.py ]; then | |
| python3 scripts/ci/afl_corpus_manager.py \ | |
| --token "${{ secrets.GITHUB_TOKEN }}" \ | |
| --artifact-name "${{ env.ARTIFACT_CORPUS }}" \ | |
| --output "tests/fuzz/corpus/${{ env.TARGET }}" || true | |
| fi | |
| - name: Configure with AFL compilers | |
| env: | |
| CC: afl-clang-fast | |
| CXX: afl-clang-fast++ | |
| run: | | |
| cmake -S . -B build-afl \ | |
| -DENABLE_FUZZING=ON \ | |
| -DENABLE_AFL=ON \ | |
| -DCMAKE_BUILD_TYPE=Debug | |
| - name: Build fuzz target | |
| run: cmake --build build-afl --target fuzz_${{ env.TARGET }} -j | |
| - name: Ensure seed corpus exists | |
| run: | | |
| mkdir -p "tests/fuzz/corpus/${{ env.TARGET }}" | |
| if [ -z "$(ls -A tests/fuzz/corpus/${{ env.TARGET }})" ]; then | |
| echo "seed" > "tests/fuzz/corpus/${{ env.TARGET }}/seed_default" | |
| fi | |
| - name: Run AFL++ (${{ steps.duration.outputs.mode }}) | |
| run: | | |
| mkdir -p afl_out | |
| timeout ${{ steps.duration.outputs.seconds }}s \ | |
| afl-fuzz -i "tests/fuzz/corpus/${{ env.TARGET }}" \ | |
| -o afl_out \ | |
| -- ./build-afl/fuzz_${{ env.TARGET }} @@ || true | |
| - name: Collect findings | |
| if: always() | |
| run: | | |
| if [ -f scripts/ci/afl_collect_findings.py ]; then | |
| python3 scripts/ci/afl_collect_findings.py \ | |
| --input afl_out --output findings.zip || true | |
| fi | |
| - name: Upload findings | |
| if: always() | |
| uses: actions/upload-artifact@v4 | |
| with: | |
| name: "${{ env.ARTIFACT_FINDINGS }}-${{ github.run_id }}" | |
| path: | | |
| findings.zip | |
| afl_out/default/crashes/ | |
| if-no-files-found: ignore | |
| - name: Upload updated seed corpus | |
| if: steps.duration.outputs.mode == 'long' | |
| uses: actions/upload-artifact@v4 | |
| with: | |
| name: ${{ env.ARTIFACT_CORPUS }} | |
| path: "tests/fuzz/corpus/${{ env.TARGET }}" |