Skip to content

fuzz

fuzz #13

Workflow file for this run

# Runs fuzz targets with short execution time for CI smoke testing.
# This is not a replacement for dedicated fuzzing runs, but catches obvious regressions.
# Runs on a schedule (daily) rather than every PR to save CI resources.
name: fuzz
concurrency:
group: "${{ github.workflow }} @ ${{ github.event.pull_request.head.label || github.head_ref || github.ref }}"
cancel-in-progress: true
on:
schedule:
# Run daily at 3 AM UTC (offset from crypto repo's 2 AM)
- cron: "0 3 * * *"
workflow_dispatch: # Allow manual triggering
permissions:
contents: read
jobs:
fuzz-miden-core:
name: fuzz miden-core (${{ matrix.target }})
runs-on: ubuntu-latest
strategy:
fail-fast: false
matrix:
target:
- mast_forest_deserialize
- mast_forest_validate
- mast_node_info
- basic_block_data
- debug_info
- program_deserialize
- kernel_deserialize
- stack_io_deserialize
- advice_inputs_deserialize
- operation_deserialize
- execution_proof_deserialize
- precompile_request_deserialize
- library_deserialize
- package_deserialize
timeout-minutes: 15
steps:
- uses: actions/checkout@v4
- name: Cleanup large tools for build space
uses: ./.github/actions/cleanup-runner
- uses: dtolnay/rust-toolchain@nightly
- uses: Swatinem/rust-cache@v2
- name: Install cargo-fuzz
run: cargo install cargo-fuzz --locked
- name: Run fuzz target (smoke test)
run: |
# Build the fuzz target first
cargo +nightly fuzz build --fuzz-dir miden-core-fuzz ${{ matrix.target }}
# Run directly to avoid cargo-fuzz wrapper SIGPIPE issue
miden-core-fuzz/target/x86_64-unknown-linux-gnu/release/${{ matrix.target }} -max_total_time=60 -runs=10000