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p2p: Don't consider blocks mutated if they don't connect to known prev block

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This commit is contained in:
Greg Sanders
2024-02-29 16:38:58 -05:00
parent 22a5ccfb06
commit a1fbde0ef7
2 changed files with 23 additions and 2 deletions
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3
src/net_processing.cpp
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@@ -4721,7 +4721,8 @@ void PeerManagerImpl::ProcessMessage(CNode& pfrom, const std::string& msg_type,
const CBlockIndex* prev_block{WITH_LOCK(m_chainman.GetMutex(), return m_chainman.m_blockman.LookupBlockIndex(pblock->hashPrevBlock))};
if (IsBlockMutated(/*block=*/*pblock,
// Check for possible mutation if it connects to something we know so we can check for DEPLOYMENT_SEGWIT being active
if (prev_block && IsBlockMutated(/*block=*/*pblock,
/*check_witness_root=*/DeploymentActiveAfter(prev_block, m_chainman, Consensus::DEPLOYMENT_SEGWIT))) {
LogDebug(BCLog::NET, "Received mutated block from peer=%d\n", peer->m_id);
Misbehaving(*peer, 100, "mutated block");