README.md

metadata

pretty_name: LayoutBench
license: cc-by-4.0
language:
  - zh
  - en
tags:
  - heap-layout-manipulation
  - benchmark
  - cybersecurity
  - program-analysis
size_categories:
  - n<1K
configs:
  - config_name: tasks
    default: true
    data_files:
      - split: benchmark
        path: data/tasks.jsonl
  - config_name: references
    data_files:
      - split: benchmark
        path: data/references.jsonl
  - config_name: sample_sources
    data_files:
      - split: source
        path: data/sample_sources.csv

LayoutBench

LayoutBench is a dataset of 156 heap layout manipulation tasks, constructed from 40 initial heap operation sequences originating from 28 open-source projects. It accompanies the study LayoutScope: Difficulty-Aware Evaluation of LLM Agents for Heap Layout Manipulation.

The dataset provides task descriptions, permitted compound primitives, invocation and parameter constraints, layout goals, verified reference sequences, sample source information, and frozen task attachments. The recorded platform is x86-64 Linux.

Version: 1.0.0. Dataset snapshot: 2026-10-31.

Task distribution

Allocator configuration	Address reuse	Strict adjacency	Total
ptmalloc 2.23	20	20	40
ptmalloc 2.35	20	20	40
jemalloc 5.3.1	18	18	36
musl mallocng 1.2.6	20	20	40
Total	78	78	156

Files

File	Contents
data/tasks.jsonl	156 task records
data/references.jsonl	156 verified reference sequences and recorded validation annotations
data/sample_sources.csv	40 sample sources, covering 28 upstream projects
attachments/A-ptmalloc-2.23.tar.gz	Frozen public attachments for 40 tasks
attachments/B-ptmalloc-2.35.tar.gz	Frozen public attachments for 40 tasks
attachments/C-jemalloc-5.3.1.tar.gz	Frozen public attachments for 36 tasks
attachments/D-mallocng-1.2.6.tar.gz	Frozen public attachments for 40 tasks
README.md	Dataset description, field definitions, and license scope
LICENSE	CC BY 4.0 license text
THIRD_PARTY_NOTICES.md	Third-party sources and notices
licenses/ExploitGym-DATA_LICENSE.md	Upstream task-data licensing notice
licenses/ExploitGym-Apache-2.0.txt	Upstream ExploitGym source-code license text

Data format

Text files use UTF-8. JSONL files contain one JSON object per line. CSV files have a header. Fields ending in _json contain JSON-encoded strings that can be decoded with a JSON parser. The Hugging Face configurations are tasks, references, and sample_sources; tasks is the default view.

Tasks and references use task_id as their join key. initial_layout_id links a task to a sample in sample_sources. The benchmark and source split names describe tasks and source samples.

Tasks: data/tasks.jsonl

Field	Meaning
task_id, task_name	Stable frozen task identifier and human-readable name
initial_layout_id	Source sample identifier
allocator_id, allocator	Allocator profile identifier and display name
relation	Address reuse or strict_adjacency
goal_id, goal_json	Frozen goal identifier and logical predicate
primitive_set_json	Primitive definitions, parameters, object-label rules, and constraints
runtime_json	Recorded allocator, architecture, word size, and runtime artifact identities
prompt, primitives_text	Original task description and human-readable primitive definitions
attachment_archive, attachment_directory	Compressed archive path and task directory inside it
target_sha256, target_source_sha256	Original ELF and C source digests
prompt_sha256, primitives_sha256	Original task document digests
task_contract, prompt_contract, primitives_contract, answer_contract	Recorded task and document format versions
target_interface, target_build_contract	Recorded target interface and build format versions

The decoded primitive set contains the primitive operations, parameter domains, object-label rules, per-primitive call limits where present, and total invocation constraints. Operations include allocations, deallocations, and cross-primitive frees. Goals retain their predicate version, checkpoint, constraints, and symbolic operand selectors. An operand's epoch identifies its selected allocation instance.

Reference sequences: data/references.jsonl

Field	Meaning
task_id, task_name, goal_id	Task and goal identities
reference_argv	Ordered primitive IDs and decimal argument tokens
reference_calls_json	Structured calls with primitive identifiers and named arguments
call_count	Number of primitive invocations
recorded_verification_runs, recorded_verification_hits	Original reference validation counts
recorded_materialization_status	Recorded task materialization validation result
minimization_json	Recorded reference-sequence minimization metadata

Reference sequences are published as dataset annotations. The validation fields preserve the recorded validation results associated with each reference sequence.

Sample sources: data/sample_sources.csv

Field	Meaning
initial_layout_id	Source sample identifier linked from the task table
project_name	Upstream project name
upstream_entry, upstream_task_alias	Upstream sample identifiers
binary_name	Source program binary name
vulnerability_type	Source vulnerability category

The source heap operation sequences were collected from ExploitGym heap-vulnerability samples at the selected ASan error boundary. Project names and sample identifiers identify the data's origin.

Task attachments

Each archive groups tasks by allocator. A task directory is tasks/<task_name>/public/ and contains prompt.md, primitives.txt, target.c, target, and manifest.json. These five files preserve the original frozen public attachments byte for byte. The task record provides the archive path and the directory to locate each task.

License

The dataset authors license their original contributions, including the dataset selection and arrangement, authored task descriptions, annotations, generated task specimens, source information, and documentation, under Creative Commons Attribution 4.0 International (CC BY 4.0). The full license text is in LICENSE; the canonical license URL is https://creativecommons.org/licenses/by/4.0/.

This grant covers only rights that the dataset authors are entitled to grant. Third-party materials retain their applicable upstream terms. It does not relicense upstream projects, allocator libraries, ExploitGym, or other referenced third-party software. See THIRD_PARTY_NOTICES.md and licenses/.

The task C and ELF files are frozen specimens included with the data. Their inclusion does not expand this license to separately maintained software or files outside this dataset repository.

When redistributing or adapting the licensed data, provide appropriate credit, retain a link to CC BY 4.0, and indicate modifications as required by that license. The associated study title is given above.