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45f5b2dac330906368352a1c585183f0d75d779d
bitcoin/src/test/fuzz
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Martin Zumsande 45f5b2dac3 fuzz: Add fuzzer for block index 
This fuzz target creates arbitrary tree-like structure of indices,
simulating the following events:
- Adding a header to the block tree db
- Receiving the full block (may be valid or not)
- Reorging to a new chain tip (possibly encountering invalid blocks on
  the way)
- pruning
The test skips all actual validation of header/ block / transaction data
by just simulating the outcome, and also doesn't interact with the data directory.

The main goal is to test the integrity of the block index tree in
all fuzzed constellations, by calling CheckBlockIndex()
at the end of each iteration.
2025-12-16 11:25:46 -05:00
..
util
Merge bitcoin/bitcoin#33629: Cluster mempool
2025-11-25 10:35:11 +00:00
addition_overflow.cpp
build, msvc: Build fuzz.exe binary
2024-04-18 10:27:25 +01:00
addrman.cpp
refactor: Sort includes of touched source files
2025-06-03 19:56:55 +02:00
asmap_direct.cpp
scripted-diff: Bump copyright headers after include changes
2025-06-03 15:13:57 +02:00
asmap.cpp
…
autofile.cpp
refactor: encapsulate vector/array keys into Obfuscation
2025-07-16 14:33:07 -07:00
banman.cpp
fuzz: cover BanMan::IsDiscouraged
2025-07-30 09:24:11 -03:00
base_encode_decode.cpp
fuzz: extract unsequenced operations with side-effects
2025-03-25 21:21:27 +01:00
bech32.cpp
lint: Check for missing trailing newline
2025-05-13 15:50:02 +02:00
bip324.cpp
scripted-diff: Bump copyright headers after std::span changes
2025-03-12 19:46:54 +01:00
bitdeque.cpp
fuzz: Avoid timeout in bitdeque
2023-12-06 15:44:38 +01:00
bitset.cpp
random: convert XoRoShiRo128PlusPlus into full RNG
2024-07-01 10:26:46 -04:00
block_header.cpp
refactor: Hand-replace some uint256S -> uint256
2024-08-05 14:51:47 +02:00
block_index_tree.cpp
fuzz: Add fuzzer for block index
2025-12-16 11:25:46 -05:00
block_index.cpp
Merge bitcoin/bitcoin#33724: refactor: Return uint64_t from GetSerializeSize
2025-11-12 09:48:10 -05:00
block.cpp
fuzz: Drop unused version from fuzz input format
2023-11-30 11:27:21 +01:00
blockfilter.cpp
fuzz: Add missing SeedRandomStateForTest(SeedRand::ZEROS)
2024-12-13 14:22:25 +01:00
bloom_filter.cpp
Use ParamsWrapper for witness serialization
2023-11-14 08:45:30 +10:00
buffered_file.cpp
refactor: encapsulate vector/array keys into Obfuscation
2025-07-16 14:33:07 -07:00
chain.cpp
validation: Don't use IsValid() to filter for invalid blocks
2025-06-12 14:40:59 -04:00
checkqueue.cpp
validation: make CCheckQueueControl's CCheckQueue non-optional
2025-05-19 22:06:48 +00:00
cluster_linearize.cpp
refactor: Separate out logic for building a tree-shaped dependency graph
2025-12-12 16:09:53 +01:00
CMakeLists.txt
fuzz: Add fuzzer for block index
2025-12-16 11:25:46 -05:00
coins_view.cpp
Merge bitcoin/bitcoin#33602: [IBD] coins: reduce lookups in dbcache layer propagation
2025-12-10 15:02:25 -08:00
coinscache_sim.cpp
validation: don't reallocate cache for short-lived CCoinsViewCache
2025-11-02 21:40:16 +01:00
connman.cpp
net: support overriding the proxy selection in ConnectNode()
2025-10-02 08:39:26 +02:00
crypto_aes256.cpp
…
crypto_aes256cbc.cpp
…
crypto_chacha20.cpp
scripted-diff: Bump copyright headers after std::span changes
2025-03-12 19:46:54 +01:00
crypto_chacha20poly1305.cpp
scripted-diff: Bump copyright headers after std::span changes
2025-03-12 19:46:54 +01:00
crypto_common.cpp
crypto: Add missing WriteBE16 function
2024-09-21 12:37:36 +02:00
crypto_diff_fuzz_chacha20.cpp
crypto: require key on ChaCha20 initialization
2023-08-17 15:31:27 -04:00
crypto_hkdf_hmac_sha256_l32.cpp
…
crypto_poly1305.cpp
fuzz: support std::byte in Consume{Fixed,Variable}LengthByteVector
2023-08-17 15:31:56 -04:00
crypto.cpp
fuzz: make FuzzedDataProvider usage deterministic
2023-12-09 19:31:06 +01:00
cuckoocache.cpp
fuzz: make FuzzedDataProvider usage deterministic
2023-12-09 19:31:06 +01:00
decode_tx.cpp
…
descriptor_parse.cpp
Merge bitcoin/bitcoin#22838: descriptors: Be able to specify change and receiving in a single descriptor string
2024-08-28 15:56:15 +01:00
deserialize.cpp
move-only: Move CBlockFileInfo to kernel namespace
2025-10-28 16:08:44 +01:00
difference_formatter.cpp
fuzz: add a target for DifferenceFormatter Class
2025-09-02 07:50:07 +03:00
eval_script.cpp
script/verify_flags: make script_verify_flags type safe
2025-08-14 10:17:32 +10:00
fee_rate.cpp
Refactor CFeeRate to use FeeFrac internally
2025-07-07 10:39:45 +02:00
feefrac.cpp
Refactor CFeeRate to use FeeFrac internally
2025-07-07 10:39:45 +02:00
feeratediagram.cpp
clang-tidy: Apply modernize-deprecated-headers
2025-06-03 15:13:54 +02:00
fees.cpp
fees: refactor: rename fees to block_policy_estimator
2025-10-27 10:41:02 +01:00
flatfile.cpp
Refactor: Remove unused FlatFilePos::SetNull
2023-03-21 13:54:11 +01:00
float.cpp
refactor: Avoid GCC false positive error
2025-01-20 17:43:58 +01:00
fuzz.cpp
fuzz: Drop unused workaround after Apple-Clang bump
2025-10-01 08:09:34 +02:00
fuzz.h
fuzz: Use std::span in FuzzBufferType
2024-06-12 15:21:31 +02:00
FuzzedDataProvider.h
refactor: modernize remaining outdated trait patterns
2025-02-21 10:43:41 +01:00
golomb_rice.cpp
fuzz: Add missing SeedRandomStateForTest(SeedRand::ZEROS)
2024-12-13 14:22:25 +01:00
headerssync.cpp
headerssync: Make HeadersSyncState more flexible and move constants
2025-09-12 22:28:41 +02:00
hex.cpp
refactor: Move transaction_identifier.h to primitives
2025-08-11 16:47:51 +01:00
http_request.cpp
refactor: Remove call to ShutdownRequested from HTTPRequest
2023-12-04 15:39:15 -04:00
i2p.cpp
fuzz: make it possible to mock (fuzz) CThreadInterrupt
2025-06-09 14:17:33 +02:00
integer.cpp
optimization: migrate SipHashUint256 to PresaltedSipHasher
2025-12-09 17:16:15 +01:00
key_io.cpp
test: Use ECC_Context helper in bench and fuzz tests
2024-05-09 15:56:04 +02:00
key.cpp
policy: uncap datacarrier by default
2025-05-30 10:12:38 -04:00
kitchen_sink.cpp
fees: refactor: rename fees to block_policy_estimator
2025-10-27 10:41:02 +01:00
load_external_block_file.cpp
fuzz: Add SetMockTime() to necessary targets
2025-01-06 15:43:04 +00:00
locale.cpp
refactor: Remove unused Parse(U)Int*
2025-05-19 17:16:13 +02:00
merkle.cpp
fuzz: exercise ComputeMerkleRoot without mutated parameter
2025-12-11 12:47:18 +01:00
merkleblock.cpp
refactor: Convert RPCs and merkleblock from uint256 to Txid
2025-08-11 15:53:34 +01:00
message.cpp
Merge bitcoin/bitcoin#29043: fuzz: make FuzzedDataProvider usage deterministic
2024-09-04 15:04:53 -04:00
mini_miner.cpp
scripted-diff: rename AddToMempool -> TryAddToMempool
2025-11-30 10:57:48 -05:00
miniscript.cpp
refactor: Use uint64_t over size_t for serialized-size values
2025-10-30 17:51:40 +01:00
minisketch.cpp
[fuzz] Improve fuzzing stability for minisketch harness
2023-12-14 20:10:21 +00:00
muhash.cpp
refactor: Revert "disable self-assign warning for tests"
2025-10-09 20:47:25 +02:00
multiplication_overflow.cpp
build, msvc: Build fuzz.exe binary
2024-04-18 10:27:25 +01:00
net_permissions.cpp
Merge bitcoin/bitcoin#27114: p2p: Allow whitelisting manual connections
2024-03-12 12:59:02 -04:00
net.cpp
fuzz: Add SetMockTime() to necessary targets
2025-01-06 15:43:04 +00:00
netaddress.cpp
net: remove unnecessary check from AlreadyConnectedToAddress()
2025-04-25 15:12:03 +02:00
netbase_dns_lookup.cpp
p2p: return CSubNet in LookupSubNet
2023-05-30 16:27:21 -03:00
node_eviction.cpp
scripted-diff: Bump copyright headers
2022-12-24 23:49:50 +00:00
overflow.cpp
fuzz: Add fuzz test for checked and saturating add and left shift
2025-01-15 15:44:03 +01:00
p2p_handshake.cpp
fuzz: Avoid non-determinism in process_message(s) target (PeerMan)
2025-07-18 14:02:55 +02:00
p2p_headers_presync.cpp
net: use generic network key for addrcache
2025-09-23 10:56:44 -04:00
p2p_transport_serialization.cpp
scripted-diff: Bump copyright headers after std::span changes
2025-03-12 19:46:54 +01:00
package_eval.cpp
Remove ancestor and descendant vsize limits from MemPoolLimits
2025-11-30 13:50:04 -05:00
parse_hd_keypath.cpp
Switch hardened derivation marker to h in descriptors
2023-04-04 18:33:08 +02:00
parse_iso8601.cpp
Remove wallet::ParseISO8601DateTime, use ParseISO8601DateTime instead
2024-12-02 15:09:31 +01:00
parse_numbers.cpp
refactor: Remove unused Parse(U)Int*
2025-05-19 17:16:13 +02:00
parse_script.cpp
…
parse_univalue.cpp
fuzz: Limit parse_univalue input length
2024-07-19 15:39:02 +02:00
partially_downloaded_block.cpp
scripted-diff: rename AddToMempool -> TryAddToMempool
2025-11-30 10:57:48 -05:00
pcp.cpp
net: Add interrupt to pcp retry loop
2025-09-08 11:18:51 +02:00
policy_estimator_io.cpp
fees: rename fees_args to block_policy_estimator_args
2025-10-27 10:44:18 +01:00
policy_estimator.cpp
Merge bitcoin/bitcoin#33629: Cluster mempool
2025-11-25 10:35:11 +00:00
poolresource.cpp
scripted-diff: Bump copyright headers after std::span changes
2025-03-12 19:46:54 +01:00
pow.cpp
Add FUZZING_BUILD_MODE_UNSAFE_FOR_PRODUCTION in PoW check
2024-09-02 15:43:33 +01:00
prevector.cpp
Merge bitcoin/bitcoin#29043: fuzz: make FuzzedDataProvider usage deterministic
2024-09-04 15:04:53 -04:00
primitives_transaction.cpp
Use ParamsWrapper for witness serialization
2023-11-14 08:45:30 +10:00
process_message.cpp
fuzz: Reset chainman state in process_message(s) targets
2025-07-18 14:03:21 +02:00
process_messages.cpp
fuzz: Reset chainman state in process_message(s) targets
2025-07-18 14:03:21 +02:00
protocol.cpp
scripted-diff: get rid of remaining "command" terminology in protocol.{h,cpp}
2024-10-26 23:44:15 +02:00
psbt.cpp
fuzz: Add missing SeedRandomStateForTest(SeedRand::ZEROS)
2024-12-13 14:22:25 +01:00
random.cpp
random: drop ad-hoc Shuffle in favor of std::shuffle
2024-07-06 09:06:36 -04:00
rbf.cpp
Merge bitcoin/bitcoin#33985: fuzz: gate mempool entry based on weight
2025-12-02 15:07:01 +00:00
rolling_bloom_filter.cpp
fuzz: Add missing SeedRandomStateForTest(SeedRand::ZEROS)
2024-12-13 14:22:25 +01:00
rpc.cpp
Merge bitcoin/bitcoin#33629: Cluster mempool
2025-11-25 10:35:11 +00:00
script_assets_test_minimizer.cpp
script/verify_flags: make script_verify_flags type safe
2025-08-14 10:17:32 +10:00
script_descriptor_cache.cpp
…
script_flags.cpp
test: additional test coverage for script_verify_flags
2025-09-11 11:24:09 +10:00
script_format.cpp
fuzz: make FuzzedDataProvider usage deterministic
2023-12-09 19:31:06 +01:00
script_interpreter.cpp
qa: simple differential fuzzing for sighash with/without caching
2025-08-06 09:33:30 -04:00
script_ops.cpp
…
script_parsing.cpp
scripted-diff: Bump copyright headers after std::span changes
2025-03-12 19:46:54 +01:00
script_sigcache.cpp
fuzz: Add missing SeedRandomStateForTest(SeedRand::ZEROS)
2024-12-13 14:22:25 +01:00
script_sign.cpp
Merge bitcoin/bitcoin#30561: refactor: move SignSignature helpers to test utils
2024-09-20 16:05:28 +01:00
script.cpp
refactor: remove dead code in CountWitnessSigOps
2025-11-04 22:51:25 +01:00
scriptnum_ops.cpp
…
secp256k1_ec_seckey_import_export_der.cpp
key: use static context for libsecp256k1 calls where applicable
2025-09-16 21:46:18 +02:00
secp256k1_ecdsa_signature_parse_der_lax.cpp
fuzz: Add missing SeedRandomStateForTest(SeedRand::ZEROS)
2024-12-13 14:22:25 +01:00
signature_checker.cpp
script/verify_flags: make script_verify_flags type safe
2025-08-14 10:17:32 +10:00
signet.cpp
Use ParamsWrapper for witness serialization
2023-11-14 08:45:30 +10:00
socks5.cpp
fuzz: Add SetMockTime() to necessary targets
2025-01-06 15:43:04 +00:00
span.cpp
scripted-diff: Bump copyright headers after std::span changes
2025-03-12 19:46:54 +01:00
string.cpp
fuzz: Add a test case for ParseByteUnits()
2025-12-05 15:23:54 +00:00
strprintf.cpp
refactor: Introduce struct to hold a runtime format string
2025-01-15 12:16:08 +01:00
system.cpp
multiprocess: Add -ipcbind option to bitcoin-node
2024-09-06 09:08:10 -04:00
timeoffsets.cpp
refactor: remove warnings globals
2024-06-13 11:20:49 +01:00
torcontrol.cpp
scripted-diff: Use new FUZZ_TARGET macro everywhere
2023-07-13 20:37:14 +02:00
transaction.cpp
fuzz: Add missing SeedRandomStateForTest(SeedRand::ZEROS)
2024-12-13 14:22:25 +01:00
tx_in.cpp
Remove unused version.h include
2023-11-30 11:28:19 +01:00
tx_out.cpp
Remove unused version.h include
2023-11-30 11:28:19 +01:00
tx_pool.cpp
fuzz: try to add more code coverage for mempool fuzzing
2025-11-18 10:48:23 -05:00
txdownloadman.cpp
fuzz: Reduce iterations in slow targets
2025-09-19 15:13:15 +01:00
txgraph.cpp
txgraph: drop move assignment operator
2025-11-25 07:36:50 -05:00
txorphan.cpp
doc: fix typos
2025-08-07 09:01:56 +01:00
txrequest.cpp
scripted-diff: Replace GenTxidVariant with GenTxid
2025-07-08 20:00:51 +01:00
util.cpp
scripted-diff: Use std::span over Span
2025-03-12 19:45:37 +01:00
util.h
scripted-diff: modernize outdated trait patterns - values
2025-02-21 10:43:01 +01:00
utxo_snapshot.cpp
refactor: Delete ChainstateManager::SnapshotBlockhash() method
2025-12-12 06:49:59 -04:00
utxo_total_supply.cpp
clang-tidy: Fix critical warnings
2025-09-07 17:28:31 +02:00
validation_load_mempool.cpp
fuzz: Add missing SeedRandomStateForTest(SeedRand::ZEROS)
2024-12-13 14:22:25 +01:00
vecdeque.cpp
refactor: Sort includes of touched source files
2025-06-03 19:56:55 +02:00
versionbits.cpp
tests: refactor versionbits fuzz test
2025-01-21 00:38:03 +10:00