Merge #17051: tests: Add deserialization fuzzing harnesses

897849d8c225045f0dd3a2fe99b5d69bdf84b4e2 tests: Add deserialization fuzzing harnesses (practicalswift)
16f0a186dcee563bb1000e1ffc51da87e7623bc6 tests: Add corpora suppression (FUZZERS_MISSING_CORPORA) for fuzzers missing in https://github.com/bitcoin-core/qa-assets/tree/master/fuzz_seed_corpus (practicalswift)

Pull request description:

  Add deserialization fuzzing harnesses.

  **Testing this PR**

  Run:

  ```
  $ CC=clang CXX=clang++ ./configure --enable-fuzz --with-sanitizers=address,fuzzer,undefined
  $ make
  $ contrib/devtools/test_fuzzing_harnesses.sh 'addr_info|block_file_info|block_filter|block_header|ext_key|ext_pub_key|fee_rate|flat_file|key_origin|merkle_block|mutable_transaction|out_point|partial_merkle_tree|partially_signed_transaction|prefilled_transaction|psbt_input|psbt_output|pub_key|script_deserialize|sub_net|tx_in' 10
  ```

  `test_fuzzing_harnesses.sh` can be found in PR #17000.

ACKs for top commit:
  laanwj:
    thanks, ACK 897849d8c225045f0dd3a2fe99b5d69bdf84b4e2

Tree-SHA512: 5a270a3002cc23b725f7b35476a43777b2b00b4d089cc006372e2fcc7afa430afaa3c1430f778ae08fc53dd85a13e7bd2fab0449c319f676423226e189a417f6

1 files changed, 26 insertions, 1 deletions

diff --git a/test/fuzz/test_runner.py b/test/fuzz/test_runner.py
index fde99fe496..ffebb579e7 100755
--- a/test/fuzz/test_runner.py
+++ b/test/fuzz/test_runner.py
@@ -12,6 +12,27 @@ import sys
 import subprocess
 import logging
 
+# Fuzzers known to lack a seed corpus in https://github.com/bitcoin-core/qa-assets/tree/master/fuzz_seed_corpus
+FUZZERS_MISSING_CORPORA = [
+    "addr_info_deserialize",
+    "block_file_info_deserialize",
+    "block_filter_deserialize",
+    "block_header_and_short_txids_deserialize",
+    "fee_rate_deserialize",
+    "flat_file_pos_deserialize",
+    "key_origin_info_deserialize",
+    "merkle_block_deserialize",
+    "out_point_deserialize",
+    "partial_merkle_tree_deserialize",
+    "partially_signed_transaction_deserialize",
+    "prefilled_transaction_deserialize",
+    "psbt_input_deserialize",
+    "psbt_output_deserialize",
+    "pub_key_deserialize",
+    "script_deserialize",
+    "sub_net_deserialize",
+    "tx_in_deserialize",
+]
 
 def main():
     parser = argparse.ArgumentParser(formatter_class=argparse.ArgumentDefaultsHelpFormatter)
@@ -100,10 +121,14 @@ def main():
 
 def run_once(*, corpus, test_list, build_dir, export_coverage):
     for t in test_list:
+        corpus_path = os.path.join(corpus, t)
+        if t in FUZZERS_MISSING_CORPORA:
+            os.makedirs(corpus_path, exist_ok=True)
         args = [
             os.path.join(build_dir, 'src', 'test', 'fuzz', t),
             '-runs=1',
-            os.path.join(corpus, t),
+            '-detect_leaks=0',
+            corpus_path,
         ]
         logging.debug('Run {} with args {}'.format(t, args))
         result = subprocess.run(args, stderr=subprocess.PIPE, universal_newlines=True)