google / google/oss-fuzz

infra/helper.py reproduce with centipede?

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Description

Does `infra/helper.py reproduce` work with `centipede`?

Seemingly it does not:

```
cd oss-fuzz
git checkout 101cfd72488b96389bb60bfb17025b8f95af6fe8~1
python infra/helper.py build_fuzzers --sanitizer address --engine centipede bitcoin-core
python infra/helper.py reproduce bitcoin-core wallet_notifications ./repr.bin
```

```
INFO:__main__:Running: docker run --rm --privileged --shm-size=2g --platform linux/amd64 -i -e HELPER=True -e ARCHITECTURE=x86_64 -v /root/oss-fuzz/build/out/bitcoin-core:/out -v /root/oss-fuzz/repr.bin:/testcase -t gcr.io/oss-fuzz-base/base-runner reproduce wallet_notifications -runs=100.
+ FUZZER=wallet_notifications
+ shift
+ '[' '!' -v TESTCASE ']'
+ TESTCASE=/testcase
+ '[' '!' -f /testcase ']'
+ export RUN_FUZZER_MODE=interactive
+ RUN_FUZZER_MODE=interactive
+ export FUZZING_ENGINE=libfuzzer
+ FUZZING_ENGINE=libfuzzer
+ export SKIP_SEED_CORPUS=1
+ SKIP_SEED_CORPUS=1
+ run_fuzzer wallet_notifications -runs=100 /testcase
/out/wallet_notifications -rss_limit_mb=2560 -timeout=25 -runs=100 /testcase < /dev/null
Centipede fuzz target runner; argv[0]: /out/wallet_notifications flags: (null)
error: can't open the input file
```

However, in https://oss-fuzz.com/testcase-detail/5189159019741184 it seems that oss-fuzz is able to reproduce with centipede?

Contributor guide

Open the contributing guide

Research direction

Start with infra/helper.py reproduce and the Docker command shown in the report, then trace how the centipede engine reaches the wallet_notifications runner. Reproduce the command with repr.bin and compare its input handling with the linked testcase behavior; done means centipede reproduction accepts the testcase or the limitation is clearly documented.

Written by the indexing model from the issue text.

Assessment

Tech stack
docker, python
Domain
infrastructure, testing
Issue type
Bug
Difficulty
4/5
Estimated time
3-5 days
Activity status
Stale
Clarity
Mostly clear
Newbie friendliness
35/100

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