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Merge bitcoin/bitcoin#21892: fuzz: Avoid excessively large min fee rate in tx_pool

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99993f066405863c66ccaec0a8427129f4515768 fuzz: Avoid excessively large min fee rate in tx_pool (MarcoFalke)

Pull request description:

  Any fee rate above 1 BTC / kvB is clearly nonsense, so no need to fuzz this.

  Hopefully fixes https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=34078

ACKs for top commit:
  practicalswift:
    cr ACK 99993f066405863c66ccaec0a8427129f4515768: patch looks correct despite no `fa` prefix in commit hash

Tree-SHA512: bd3651d354b13d889ad1708d2b385ad0479de036de74a237346eefad5dbfb1df76ec02b55ec00487ec598657ef6102f992302b14c4e47f913a9962f81f4157e6
This commit is contained in:
MarcoFalke 2021-05-11 20:35:17 +02:00 committed by pasta
parent 4dd36f603a
commit 813993d44a
No known key found for this signature in database
GPG Key ID: 52527BEDABE87984
3 changed files with 7 additions and 5 deletions
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2
src/test/fuzz/tx_pool.cpp
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@ -84,7 +84,7 @@ void Finish(FuzzedDataProvider& fuzzed_data_provider, MockedTxPool& tx_pool, con
{
BlockAssembler::Options options;
options.nBlockMaxSize = fuzzed_data_provider.ConsumeIntegralInRange(0U, MaxBlockSize(true));
options.blockMinFeeRate = CFeeRate{ConsumeMoney(fuzzed_data_provider)};
options.blockMinFeeRate = CFeeRate{ConsumeMoney(fuzzed_data_provider, /* max */ COIN)};
auto assembler = BlockAssembler{chainstate, node, *static_cast<CTxMemPool*>(&tx_pool), ::Params(), options};
auto block_template = assembler.CreateNewBlock(CScript{} << OP_TRUE);

5
src/test/fuzz/util.cpp
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@ -293,6 +293,11 @@ void FillNode(FuzzedDataProvider& fuzzed_data_provider, ConnmanTestMsg& connman,
/*relay_txs=*/fuzzed_data_provider.ConsumeBool());
}
CAmount ConsumeMoney(FuzzedDataProvider& fuzzed_data_provider, const std::optional<CAmount>& max) noexcept
{
return fuzzed_data_provider.ConsumeIntegralInRange<CAmount>(0, max.value_or(MAX_MONEY));
}
int64_t ConsumeTime(FuzzedDataProvider& fuzzed_data_provider, const std::optional<int64_t>& min, const std::optional<int64_t>& max) noexcept
{
// Avoid t=0 (1970-01-01T00:00:00Z) since SetMockTime(0) disables mocktime.

5
src/test/fuzz/util.h
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@ -179,10 +179,7 @@ template <typename WeakEnumType, size_t size>
return static_cast<opcodetype>(fuzzed_data_provider.ConsumeIntegralInRange<uint32_t>(0, MAX_OPCODE));
}
[[nodiscard]] inline CAmount ConsumeMoney(FuzzedDataProvider& fuzzed_data_provider) noexcept
{
return fuzzed_data_provider.ConsumeIntegralInRange<CAmount>(0, MAX_MONEY);
}
[[nodiscard]] CAmount ConsumeMoney(FuzzedDataProvider& fuzzed_data_provider, const std::optional<CAmount>& max = std::nullopt) noexcept;
[[nodiscard]] int64_t ConsumeTime(FuzzedDataProvider& fuzzed_data_provider, const std::optional<int64_t>& min = std::nullopt, const std::optional<int64_t>& max = std::nullopt) noexcept;