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Match libfuzzer's timeout for reproduction in centipede #5291

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Match libfuzzer's timeout for reproduction in centipede #5291

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Match libfuzzer's timeout for reproduction in centipede
g-ortuno May 22, 2026
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g-ortuno May 22, 2026
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9 changes: 4 additions & 5 deletions src/clusterfuzz/_internal/bot/fuzzers/centipede/engine.py
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Original file line number Diff line number Diff line change
Expand Up @@ -433,11 +433,10 @@ def reproduce(self, target_path, input_path, arguments, max_time): # pylint: di
rss_limit = constants.RSS_LIMIT_MB_DEFAULT
if constants.RSS_LIMIT_MB_FLAGNAME in fuzzer_arguments:
rss_limit = fuzzer_arguments[constants.RSS_LIMIT_MB_FLAGNAME]

timeout = constants.TIMEOUT_PER_INPUT_REPR_DEFAULT
if constants.TIMEOUT_PER_INPUT_FLAGNAME in fuzzer_arguments:
timeout = fuzzer_arguments[constants.TIMEOUT_PER_INPUT_FLAGNAME]

# Override fuzzer-defined timeouts to match libfuzzer's behavior in
# https://github.com/google/clusterfuzz/blob/d15a65e7753c6c6579f4b395c40e6d45a7bde262/src/clusterfuzz/_internal/bot/fuzzers/libfuzzer.py#L1255
test_timeout = environment.get_value('TEST_TIMEOUT', constants.TIMEOUT_PER_INPUT_REPR_DEFAULT)
timeout = max(1, test_timeout - 5)
os.environ['CENTIPEDE_RUNNER_FLAGS'] = (
f':{constants.RSS_LIMIT_MB_FLAGNAME}={rss_limit}'
f':{constants.TIMEOUT_PER_INPUT_FLAGNAME}={timeout}:')
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