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Check leaves size maximum in MerkleComputation

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Belt and suspenders for future code changes.

Currently this function is only called from TransactionMerklePath() which sets leaves to the block transactions, so the Assume always holds.
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Sjors Provoost 2024-12-17 10:11:54 +07:00
parent 4d57288246
commit f86678156a
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1 changed files with 2 additions and 0 deletions
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src/consensus/merkle.cpp
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@ -4,6 +4,7 @@
#include <consensus/merkle.h>
#include <hash.h>
#include <util/check.h>
/* WARNING! If you're reading this because you're learning about crypto
and/or designing a new system that will use merkle trees, keep in mind
@ -87,6 +88,7 @@ uint256 BlockWitnessMerkleRoot(const CBlock& block, bool* mutated)
static void MerkleComputation(const std::vector<uint256>& leaves, uint256* proot, bool* pmutated, uint32_t leaf_pos, std::vector<uint256>* path)
{
if (path) path->clear();
Assume(leaves.size() <= UINT32_MAX);
if (leaves.size() == 0) {
if (pmutated) *pmutated = false;
if (proot) *proot = uint256();