Datasets:

Benchanything
/

checkerbench

static_analyzer stringclasses 2 values	cve_id stringlengths 13 16	dataset stringclasses 5 values	environment_id stringlengths 16 67	group stringclasses 5 values	language stringclasses 5 values	project_id stringlengths 9 54	task_id stringlengths 9 30	task_path stringlengths 22 73	task_prompt stringlengths 4.92k 22.9k	patch stringlengths 318 241k	before_context stringlengths 220 2.06M	after_context stringlengths 113 2.08M	task_metadata_json stringlengths 765 8.94k	checker_template stringclasses 1 value
codeql	CVE-2022-4741	codeql_go_benchmark_top30_v1	codeql_go_benchmark_top30_v1/morefixes-02cb4e0a6c5aaabd6a78	CodeQL go	go	morefixes__sajari__docconv	morefixes-02cb4e0a6c5aaabd6a78	codeql_go_benchmark_top30_v1/tasks/morefixes-02cb4e0a6c5aaabd6a78	# Go CodeQL detector synthesis You are cc operating in `/work`. Starting only from the supplied patch, before/after Go context, CodeQL references, and validation tools, synthesize a semantic CodeQL detector for the vulnerability fixed by the patch. This is one fresh session. You may iterate inside this session, but no...	diff --git a/docx.go b/docx.go index 0b3c2e6..f9f276a 100644 --- a/docx.go +++ b/docx.go @@ -40,7 +40,7 @@ func ConvertDocx(r io.Reader) (string, map[string]string, error) { size = si.Size() ra = f } else { - b, err := ioutil.ReadAll(r) + b, err := ioutil.ReadAll(io.LimitReader(r, maxBytes)) if err != nil ...	# Patch-overlapping Go context before the fix ## `docx.go` (changed lines (43, 44)) ```go package docconv import ( "archive/zip" "bytes" "encoding/xml" "fmt" "io" "io/ioutil" "os" "time" ) type typeOverride struct { XMLName xml.Name `xml:"Override"` ContentType string `xml:"ContentType,attr"` PartN...	# Patch-overlapping Go context after the fix ## `docx.go` (changed lines (43,)) ```go package docconv import ( "archive/zip" "bytes" "encoding/xml" "fmt" "io" "io/ioutil" "os" "time" ) type typeOverride struct { XMLName xml.Name `xml:"Override"` ContentType string `xml:"ContentType,attr"` PartName ...	{ "schema_version": "synthesis-task-v1", "task": { "pair_id": "morefixes-02cb4e0a6c5aaabd6a78", "dataset_id": "morefixes", "dataset_item_id": "morefixes-02cb4e0a6c5aaabd6a78", "project_id": "morefixes__sajari__docconv", "language": "go", "backend": "codeql" }, "changed_go_files": [ "...	null
codeql	CVE-2025-47281	codeql_go_benchmark_top30_v1	codeql_go_benchmark_top30_v1/morefixes-08d699b1f7c72c366406	CodeQL go	go	morefixes__kyverno__kyverno	morefixes-08d699b1f7c72c366406	codeql_go_benchmark_top30_v1/tasks/morefixes-08d699b1f7c72c366406	# Go CodeQL detector synthesis You are cc operating in `/work`. Starting only from the supplied patch, before/after Go context, CodeQL references, and validation tools, synthesize a semantic CodeQL detector for the vulnerability fixed by the patch. This is one fresh session. You may iterate inside this session, but no...	diff --git a/pkg/engine/wildcards/wildcards.go b/pkg/engine/wildcards/wildcards.go index 730d82529..a21ad08f9 100644 --- a/pkg/engine/wildcards/wildcards.go +++ b/pkg/engine/wildcards/wildcards.go @@ -135,7 +135,16 @@ func getValueAsStringMap(key string, data interface{}) (string, map[string]strin } for k, v := r...	# Patch-overlapping Go context before the fix ## `pkg/engine/wildcards/wildcards.go` (changed lines (138, 139)) ```go package wildcards import ( "strings" "github.com/kyverno/kyverno/ext/wildcard" "github.com/kyverno/kyverno/pkg/engine/anchor" metav1 "k8s.io/apimachinery/pkg/apis/meta/v1" ) // ReplaceInSelecto...	# Patch-overlapping Go context after the fix ## `pkg/engine/wildcards/wildcards.go` (changed lines (138, 139, 140, 141, 142, 143, 144, 145, 146, 147)) ```go package wildcards import ( "strings" "github.com/kyverno/kyverno/ext/wildcard" "github.com/kyverno/kyverno/pkg/engine/anchor" metav1 "k8s.io/apimachinery/p...	{ "schema_version": "synthesis-task-v1", "task": { "pair_id": "morefixes-08d699b1f7c72c366406", "dataset_id": "morefixes", "dataset_item_id": "morefixes-08d699b1f7c72c366406", "project_id": "morefixes__kyverno__kyverno", "language": "go", "backend": "codeql" }, "changed_go_files": [ ...	null
codeql	CVE-2020-29243	codeql_go_benchmark_top30_v1	codeql_go_benchmark_top30_v1/morefixes-096cbfbd1d27f9ce86fb	CodeQL go	go	morefixes__dhowden__tag	morefixes-096cbfbd1d27f9ce86fb	codeql_go_benchmark_top30_v1/tasks/morefixes-096cbfbd1d27f9ce86fb	# Go CodeQL detector synthesis You are cc operating in `/work`. Starting only from the supplied patch, before/after Go context, CodeQL references, and validation tools, synthesize a semantic CodeQL detector for the vulnerability fixed by the patch. This is one fresh session. You may iterate inside this session, but no...	diff --git a/mp4.go b/mp4.go index bc0286b..6523397 100644 --- a/mp4.go +++ b/mp4.go @@ -149,8 +149,8 @@ func (m metadataMP4) readAtomData(r io.ReadSeeker, name string, size uint32, pro // "data" + size (4 bytes each) b = b[8:] - if len(b) < 3 { - return fmt.Errorf("invalid encoding: expected at least %d byt...	# Patch-overlapping Go context before the fix ## `mp4.go` (changed lines (152, 153, 154)) ```go // Copyright 2015, David Howden // Use of this source code is governed by a BSD-style // license that can be found in the LICENSE file. package tag import ( "bytes" "encoding/binary" "errors" "fmt" "io" "strconv" ...	# Patch-overlapping Go context after the fix ## `mp4.go` (changed lines (152, 153)) ```go // Copyright 2015, David Howden // Use of this source code is governed by a BSD-style // license that can be found in the LICENSE file. package tag import ( "bytes" "encoding/binary" "errors" "fmt" "io" "strconv" "strin...	{ "schema_version": "synthesis-task-v1", "task": { "pair_id": "morefixes-096cbfbd1d27f9ce86fb", "dataset_id": "morefixes", "dataset_item_id": "morefixes-096cbfbd1d27f9ce86fb", "project_id": "morefixes__dhowden__tag", "language": "go", "backend": "codeql" }, "changed_go_files": [ "mp4...	null
codeql	CVE-2023-34236	codeql_go_benchmark_top30_v1	codeql_go_benchmark_top30_v1/morefixes-0adb0a489b07a50d6b2f	CodeQL go	go	morefixes__weaveworks__tf-controller	morefixes-0adb0a489b07a50d6b2f	codeql_go_benchmark_top30_v1/tasks/morefixes-0adb0a489b07a50d6b2f	# Go CodeQL detector synthesis You are cc operating in `/work`. Starting only from the supplied patch, before/after Go context, CodeQL references, and validation tools, synthesize a semantic CodeQL detector for the vulnerability fixed by the patch. This is one fresh session. You may iterate inside this session, but no...	diff --git a/runner/server.go b/runner/server.go index 5a5db655..676ef756 100644 --- a/runner/server.go +++ b/runner/server.go @@ -170,6 +170,18 @@ func (r TerraformRunnerServer) ProcessCliConfig(ctx context.Context, req Proce return &ProcessCliConfigReply{FilePath: tfrcFilepath}, nil } +// initLogger sets up th...	# Patch-overlapping Go context before the fix ## `runner/server.go` (changed lines (173, 194, 195, 196, 197, 198, 199, 200, 201, 202)) ```go package runner import ( "bytes" "context" "errors" "fmt" "io/ioutil" "os" "os/exec" "path/filepath" "strings" securejoin "github.com/cyphar/filepath-securejoin" "gi...	# Patch-overlapping Go context after the fix ## `runner/server.go` (changed lines (173, 174, 175, 176, 177, 178, 179, 180, 181, 182, 183, 184, 206, 207)) ```go package runner import ( "bytes" "context" "errors" "fmt" "io/ioutil" "os" "os/exec" "path/filepath" "strings" securejoin "github.com/cyphar/filepa...	{ "schema_version": "synthesis-task-v1", "task": { "pair_id": "morefixes-0adb0a489b07a50d6b2f", "dataset_id": "morefixes", "dataset_item_id": "morefixes-0adb0a489b07a50d6b2f", "project_id": "morefixes__weaveworks__tf-controller", "language": "go", "backend": "codeql" }, "changed_go_files...	null
codeql	CVE-2022-41939	codeql_go_benchmark_top30_v1	codeql_go_benchmark_top30_v1/morefixes-110ab7950a2c0b2c6f28	CodeQL go	go	morefixes__knative__func	morefixes-110ab7950a2c0b2c6f28	codeql_go_benchmark_top30_v1/tasks/morefixes-110ab7950a2c0b2c6f28	"# Go CodeQL detector synthesis\n\nYou are cc operating in `/work`. Starting only from the supplied (...TRUNCATED)	"diff --git a/cmd/root.go b/cmd/root.go\nindex 8fefcb37..b062eba2 100644\n--- a/cmd/root.go\n+++ b/c(...TRUNCATED)	"# Patch-overlapping Go context before the fix\n\n## `cmd/root.go` (changed lines (12, 364, 365))\n\(...TRUNCATED)	"# Patch-overlapping Go context after the fix\n\n## `cmd/root.go` (changed lines (12, 365, 366, 367,(...TRUNCATED)	"{\n \"schema_version\": \"synthesis-task-v1\",\n \"task\": {\n \"pair_id\": \"morefixes-110ab7(...TRUNCATED)	null
codeql	CVE-2023-27582	codeql_go_benchmark_top30_v1	codeql_go_benchmark_top30_v1/morefixes-1218ce956f8120d59555	CodeQL go	go	morefixes__foxcpp__maddy	morefixes-1218ce956f8120d59555	codeql_go_benchmark_top30_v1/tasks/morefixes-1218ce956f8120d59555	"# Go CodeQL detector synthesis\n\nYou are cc operating in `/work`. Starting only from the supplied (...TRUNCATED)	"diff --git a/internal/auth/sasl.go b/internal/auth/sasl.go\nindex 06417ce..2103ab7 100644\n--- a/in(...TRUNCATED)	"# Patch-overlapping Go context before the fix\n\n## `internal/auth/sasl.go` (changed lines (84,))\n(...TRUNCATED)	"# Patch-overlapping Go context after the fix\n\n## `internal/auth/sasl.go` (changed lines (84, 85, (...TRUNCATED)	"{\n \"schema_version\": \"synthesis-task-v1\",\n \"task\": {\n \"pair_id\": \"morefixes-1218ce(...TRUNCATED)	null
codeql	CVE-2024-39315	codeql_go_benchmark_top30_v1	codeql_go_benchmark_top30_v1/morefixes-14446e68cdc53bc98807	CodeQL go	go	morefixes__pomerium__pomerium	morefixes-14446e68cdc53bc98807	codeql_go_benchmark_top30_v1/tasks/morefixes-14446e68cdc53bc98807	"# Go CodeQL detector synthesis\n\nYou are cc operating in `/work`. Starting only from the supplied (...TRUNCATED)	"diff --git a/internal/handlers/userinfo.go b/internal/handlers/userinfo.go\nindex c430d4f85..fa30e5(...TRUNCATED)	"# Patch-overlapping Go context before the fix\n\n## `internal/handlers/userinfo.go` (changed lines (...TRUNCATED)	"# Patch-overlapping Go context after the fix\n\n## `internal/handlers/userinfo.go` (changed lines ((...TRUNCATED)	"{\n \"schema_version\": \"synthesis-task-v1\",\n \"task\": {\n \"pair_id\": \"morefixes-14446e(...TRUNCATED)	null
codeql	CVE-2022-2582	codeql_go_benchmark_top30_v1	codeql_go_benchmark_top30_v1/morefixes-1d20aba9f4be2de73db5	CodeQL go	go	morefixes__aws__aws-sdk-go	morefixes-1d20aba9f4be2de73db5	codeql_go_benchmark_top30_v1/tasks/morefixes-1d20aba9f4be2de73db5	"# Go CodeQL detector synthesis\n\nYou are cc operating in `/work`. Starting only from the supplied (...TRUNCATED)	"diff --git a/internal/sync/singleflight/singleflight_test.go b/internal/sync/singleflight/singlefli(...TRUNCATED)	"# Patch-overlapping Go context before the fix\n\n## `internal/sync/singleflight/singleflight_test.g(...TRUNCATED)	"# Patch-overlapping Go context after the fix\n\n## `internal/sync/singleflight/singleflight_test.go(...TRUNCATED)	"{\n \"schema_version\": \"synthesis-task-v1\",\n \"task\": {\n \"pair_id\": \"morefixes-1d20ab(...TRUNCATED)	null
codeql	CVE-2025-66626	codeql_go_benchmark_top30_v1	codeql_go_benchmark_top30_v1/morefixes-2331a664751876781460	CodeQL go	go	morefixes__argoproj__argo-workflows	morefixes-2331a664751876781460	codeql_go_benchmark_top30_v1/tasks/morefixes-2331a664751876781460	"# Go CodeQL detector synthesis\n\nYou are cc operating in `/work`. Starting only from the supplied (...TRUNCATED)	"diff --git a/workflow/executor/executor.go b/workflow/executor/executor.go\nindex 9cfaf5380..98a4ba(...TRUNCATED)	"# Patch-overlapping Go context before the fix\n\n## `workflow/executor/executor.go` (changed lines (...TRUNCATED)	"# Patch-overlapping Go context after the fix\n\n## `workflow/executor/executor.go` (changed lines ((...TRUNCATED)	"{\n \"schema_version\": \"synthesis-task-v1\",\n \"task\": {\n \"pair_id\": \"morefixes-2331a6(...TRUNCATED)	null
codeql	CVE-2019-12496	codeql_go_benchmark_top30_v1	codeql_go_benchmark_top30_v1/morefixes-2cc25dee5f2a118bcb26	CodeQL go	go	morefixes__hybridgroup__gobot	morefixes-2cc25dee5f2a118bcb26	codeql_go_benchmark_top30_v1/tasks/morefixes-2cc25dee5f2a118bcb26	"# Go CodeQL detector synthesis\n\nYou are cc operating in `/work`. Starting only from the supplied (...TRUNCATED)	"diff --git a/platforms/mqtt/mqtt_adaptor.go b/platforms/mqtt/mqtt_adaptor.go\nindex 78bc508e..b3df2(...TRUNCATED)	"# Patch-overlapping Go context before the fix\n\n## `platforms/mqtt/mqtt_adaptor.go` (changed lines(...TRUNCATED)	"# Patch-overlapping Go context after the fix\n\n## `platforms/mqtt/mqtt_adaptor.go` (changed lines (...TRUNCATED)	"{\n \"schema_version\": \"synthesis-task-v1\",\n \"task\": {\n \"pair_id\": \"morefixes-2cc25d(...TRUNCATED)	null

End of preview. Expand in Data Studio

CheckerBench Dataset

300 static-analysis tasks with complete runtime assets: 159 CSA tasks and 141 CodeQL tasks.

Backend / language	Tasks
CSA (C/C++)	159
CodeQL Go	30
CodeQL Java	30
CodeQL JavaScript	30
CodeQL Python	51
Total	300

dataset/tasks.jsonl is the authoritative portable roster. tasks/ contains browsable task inputs. The assets/ directory provides complete task bundles, reference implementations, source snapshots, CodeQL databases, CSA build assets, refinement environments, and a frozen Docker image.

Load the task table

from datasets import load_dataset

tasks = load_dataset("Benchanything/checkerbench", split="test")
assert len(tasks) == 300

The single test split contains all 300 benchmark tasks; no training or validation split is provided. Each row includes the task ID, static analyzer (static_analyzer: csa or codeql), language, CVE and source-project identifiers, task prompt, patch, before/after context, and task configuration as JSON text. checker_template contains the CSA starter implementation and is null for CodeQL tasks. The original browsable inputs are also available under tasks/. task_path identifies the task inside its restored bundle, while environment_id identifies its runtime environment.

Download and restore

Requirements: Linux x86-64, Docker, Python 3.10+, and at least 100 GB of available disk space. Additional task workspaces require additional storage.

Download the complete distribution, including the datasets and frozen runtime image (approximately 13.3 GB of compressed assets):

pip install -U huggingface_hub
hf download Benchanything/checkerbench --repo-type dataset --local-dir checkerbench
cd checkerbench
python3 scripts/restore.py --assets assets --data runtime_data --load-image

For a private repository, authenticate with hf auth login using an account with access before downloading. Public downloads do not require authentication.

To download only dataset archives using a local copy of this repository's scripts:

python3 scripts/download.py --kind dataset --output assets

The downloader verifies every part against its SHA-256 checksum, and the restore script also verifies the complete compressed stream. Split archives are extracted or loaded directly without writing an extra combined copy. Verified downloads and completed restores can be reused.

Create a task workspace

The checkerbench-runtime:review-v1 image targets linux/amd64 and includes LLVM/Clang 18.1.8, CodeQL 2.26.4, language toolchains, and Python dependencies. Model-service credentials are supplied separately by the operator.

Start a container with stable paths:

mkdir -p work
docker run --rm -it --network none --entrypoint /bin/bash \
  -v "$PWD:/release:ro" -v "$PWD/runtime_data:/data:ro" \
  -v "$PWD/work:/work" checkerbench-runtime:review-v1

Prepare a CSA task:

python /release/scripts/prepare.py csa pair_134943 \
  --data-root /data --output /work/pair_134943
cd /work/pair_134943
# Write checker.cpp, then compile and scan.
bash compile.sh
CHECKER_NAME=YOUR_CHECKER_NAME bash scan/scan_before.sh
CHECKER_NAME=YOUR_CHECKER_NAME bash scan/scan_after.sh

Prepare a CodeQL task:

python /release/scripts/prepare.py codeql morefixes-32ed35a8bd8aba7b47ad \
  --language go --data-root /data --output /work/go-example
cd /work/go-example/tasks/morefixes-32ed35a8bd8aba7b47ad
# Edit query/vulnerability.ql, then compile and scan.
bash scripts/compile_query.sh
bash scripts/run_before.sh
bash scripts/run_after.sh

Only tasks in the fixed 300-task roster are accepted. Maintainers can add --reference to reproduce a bundled reference implementation. Keep the same container paths after preparing a workspace. CSA uses shared Git objects from the read-only dataset; CodeQL databases are copied into the task workspace.

Dataset contents

CSA: 159 tasks with source snapshots, captured build assets, reference implementations, and refinement environments. Shared runtime assets preserve restoration dependencies.
CodeQL: four task bundles containing 30 Go, 30 Java, 30 JavaScript, and 51 Python tasks, with their captured analysis databases.
scripts/prepare.py restores before/after scanning workspaces. The CSA bundle also includes scripts/rehydrate_benchmark_env.py for full refinement worktrees. Historical refinement assets contain absolute paths and symbolic links; see docs/environment.md for the restoration boundary.
References and evaluator assets are maintainer material. During evaluation, expose only a prepared single-task workspace and its required runtime assets to the evaluated agent.

Integrity and validation

release-manifest.json records archive and part sizes, SHA-256 checksums, and the image fingerprint. environment/versions.json records the toolchain versions; the exported image is the direct restoration entry point. reports/validation.json records the checks actually performed and their limits.

Third-party source and tools retain their own license files. This repository does not assign a new blanket license to all bundled third-party content.

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