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fuzz: Avoid OOM in transaction fuzz target

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Also fix bug where the json object is reused between two calls.
This commit is contained in:
MarcoFalke 2023-06-20 18:22:43 +02:00
parent d1ae96755a
commit fa31c4daac
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1 changed files with 10 additions and 3 deletions
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13
src/test/fuzz/transaction.cpp
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@ -101,7 +101,14 @@ FUZZ_TARGET_INIT(transaction, initialize_transaction)
(void)AreInputsStandard(tx, coins_view_cache);
(void)IsWitnessStandard(tx, coins_view_cache);
UniValue u(UniValue::VOBJ);
TxToUniv(tx, /*block_hash=*/uint256::ZERO, /*entry=*/u);
TxToUniv(tx, /*block_hash=*/uint256::ONE, /*entry=*/u);
if (tx.GetTotalSize() < 250'000) { // Avoid high memory usage (with msan) due to json encoding
{
UniValue u{UniValue::VOBJ};
TxToUniv(tx, /*block_hash=*/uint256::ZERO, /*entry=*/u);
}
{
UniValue u{UniValue::VOBJ};
TxToUniv(tx, /*block_hash=*/uint256::ONE, /*entry=*/u);
}
}
}