[CHAOSPLT-984] Add fuzzer, v2 by edznux-dd · Pull Request #465 · DataDog/libddwaf

edznux-dd · 2025-10-03T15:39:53Z

This PR adds support for the internal fuzzing infrastructure.

This will run all the fuzzer, daily, from master based on the gitlab CI schedule.
It also allows user to manually start a fuzzing pipeline in gitlab (that will send it to our fuzzing infra) manually by clicking the start button.

This is a much simplified version of #436

I added a build.sh at the root of the fuzzer to simplify the fuzzing infra script.

codecov-commenter · 2025-10-03T15:54:26Z

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 84.91%. Comparing base (8d71a04) to head (3050e1a).
⚠️ Report is 21 commits behind head on master.

Additional details and impacted files

@@           Coverage Diff           @@
##           master     #465   +/-   ##
=======================================
  Coverage   84.91%   84.91%           
=======================================
  Files         190      190           
  Lines        9820     9820           
  Branches     4293     4293           
=======================================
  Hits         8339     8339           
  Misses        612      612           
  Partials      869      869

Flag	Coverage Δ
waf_test	`84.91% <ø> (ø)`

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pr-commenter · 2025-10-03T16:06:44Z

Benchmarks gcc

Benchmark execution time: 2025-10-07 09:55:58

Comparing candidate commit 3050e1a in PR branch edouard/add-internal-fuzzing-infra-attempt-n2 with baseline commit 8d71a04 in branch master.

Found 0 performance improvements and 0 performance regressions! Performance is the same for 1 metrics, 0 unstable metrics.

github-actions · 2025-10-03T16:08:11Z

Artifact Size Comparison 📦

Artifact	Previous Release	This PR	Difference
darwin-arm64::libddwaf.a	90005656	94899264	0.05%
darwin-arm64::libddwaf.a.stripped	4579560	4879672	0.06%
darwin-arm64::libddwaf.dylib	1963024	2032736	0.03%
darwin-universal::libddwaf.a	181419976	191426816	0.05%
darwin-universal::libddwaf.a.stripped	9765384	10399880	0.06%
darwin-universal::libddwaf.dylib	4142096	4293728	0.03%
darwin-x86_64::libddwaf.a	91414272	96527504	0.05%
darwin-x86_64::libddwaf.a.stripped	5185776	5520160	0.06%
darwin-x86_64::libddwaf.dylib	2150896	2238424	0.04%
linux-aarch64::libddwaf.a	73159494	75863458	0.03%
linux-aarch64::libddwaf.a.stripped	11852226	12283542	0.03%
linux-aarch64::libddwaf.so	2463216	2501000	0.01%
linux-armv7::libddwaf.a	64719098	67001894	0.03%
linux-armv7::libddwaf.a.stripped	10852762	11261726	0.03%
linux-armv7::libddwaf.so	2148652	2160120	0.00%
linux-i386::libddwaf.a	62842618	65103094	0.03%
linux-i386::libddwaf.a.stripped	9379954	9746334	0.03%
linux-i386::libddwaf.so	2392676	2424100	0.01%
linux-x86_64::libddwaf.a	73645934	76350490	0.03%
linux-x86_64::libddwaf.a.stripped	11671234	12077798	0.03%
linux-x86_64::libddwaf.so	2660048	2695488	0.01%
windows-arm64::ddwaf.dll	4788224	4916224	0.02%
windows-arm64::ddwaf.lib	11698	16410	0.40%
windows-arm64::ddwaf_static.lib	57913408	60315174	0.04%
windows-win32::ddwaf.dll	3368448	3473920	0.03%
windows-win32::ddwaf.lib	11922	16726	0.40%
windows-win32::ddwaf_static.lib	49534122	51856472	0.04%
windows-x64::ddwaf.dll	4101632	4193280	0.02%
windows-x64::ddwaf.lib	11698	16410	0.40%
windows-x64::ddwaf_static.lib	57409488	59783244	0.04%

Anilm3 · 2025-10-03T16:13:06Z

+  #   - if: '$CI_COMMIT_REF_NAME == "master" && $CI_PIPELINE_SOURCE == "push"'
+  #   - if: '$CI_PIPELINE_SOURCE == "web"'
+  #     when: manual
+  before_script: |


Feel free to open a PR on the benchmarking platform repo to update this image and avoid reinstalling every time.

sure, I'll find the minimal working step and then port that to the base image :)

pr-commenter · 2025-10-03T18:54:14Z

Benchmarks clang

Benchmark execution time: 2025-10-07 09:56:41

Comparing candidate commit 3050e1a in PR branch edouard/add-internal-fuzzing-infra-attempt-n2 with baseline commit 8d71a04 in branch master.

Found 0 performance improvements and 0 performance regressions! Performance is the same for 1 metrics, 0 unstable metrics.

pr-commenter · 2025-10-03T19:07:52Z

Benchmarks clang-pgo

Benchmark execution time: 2025-10-07 09:28:23

Comparing candidate commit c711f62 in PR branch edouard/add-internal-fuzzing-infra-attempt-n2 with baseline commit fd28083 in branch master.

Found 0 performance improvements and 0 performance regressions! Performance is the same for 1 metrics, 0 unstable metrics.

Anilm3

LGTM, thank you!

edznux-dd · 2025-10-07T09:28:01Z

/merge

dd-devflow-routing-codex · 2025-10-07T09:28:05Z

View all feedbacks in Devflow UI.

2025-10-07 09:28:05 UTC ℹ️ Start processing command /merge

2025-10-07 09:28:09 UTC ℹ️ MergeQueue: pull request added to the queue

The expected merge time in master is approximately 0s (p90).

2025-10-07 09:32:32 UTC ⚠️ MergeQueue: This merge request build was cancelled

edouard.schweisguth@datadoghq.com cancelled this merge request build

edznux-dd · 2025-10-07T09:32:23Z

/remove

dd-devflow-routing-codex · 2025-10-07T09:32:26Z

View all feedbacks in Devflow UI.

2025-10-07 09:32:25 UTC ℹ️ Start processing command /remove

2025-10-07 09:32:29 UTC ℹ️ Devflow: /remove

Anilm3 reviewed Oct 3, 2025

View reviewed changes

edznux-dd force-pushed the edouard/add-internal-fuzzing-infra-attempt-n2 branch 4 times, most recently from fac412a to 715cd89 Compare October 3, 2025 18:19

This add internal CI support

0510467

edznux-dd force-pushed the edouard/add-internal-fuzzing-infra-attempt-n2 branch from 715cd89 to 0510467 Compare October 3, 2025 18:31

edznux-dd marked this pull request as ready for review October 3, 2025 18:35

edznux-dd requested a review from a team as a code owner October 3, 2025 18:35

Anilm3 approved these changes Oct 6, 2025

View reviewed changes

Use new base image pre installed package

8fc1955

edznux-dd force-pushed the edouard/add-internal-fuzzing-infra-attempt-n2 branch 2 times, most recently from 3c5572a to 4da3115 Compare October 7, 2025 07:55

Update path

484444d

edznux-dd force-pushed the edouard/add-internal-fuzzing-infra-attempt-n2 branch from 4da3115 to 484444d Compare October 7, 2025 08:01

Add early exit if vault does not exists

c711f62

dd-devflow Bot added mergequeue-status: queued mergequeue-status: in_progress and removed mergequeue-status: queued labels Oct 7, 2025

dd-devflow Bot added mergequeue-status: removed and removed mergequeue-status: in_progress labels Oct 7, 2025

Merge branch 'master' into edouard/add-internal-fuzzing-infra-attempt-n2

3050e1a

edznux-dd enabled auto-merge (squash) October 7, 2025 09:34

edznux-dd merged commit a681369 into master Oct 7, 2025
55 of 56 checks passed

edznux-dd deleted the edouard/add-internal-fuzzing-infra-attempt-n2 branch October 7, 2025 10:03

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[CHAOSPLT-984] Add fuzzer, v2#465

[CHAOSPLT-984] Add fuzzer, v2#465
edznux-dd merged 5 commits into
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