diff --git a/src/net_processing.cpp b/src/net_processing.cpp index 34b4840eb12..3f344005bca 100644 --- a/src/net_processing.cpp +++ b/src/net_processing.cpp @@ -2565,14 +2565,22 @@ bool PeerManagerImpl::TryLowWorkHeadersSync(Peer& peer, CNode& pfrom, const CBlo // Now a HeadersSyncState object for tracking this synchronization is created, // process the headers using it as normal. - return IsContinuationOfLowWorkHeadersSync(peer, pfrom, headers); + if (!IsContinuationOfLowWorkHeadersSync(peer, pfrom, headers)) { + // Something went wrong, reset the headers sync. + peer.m_headers_sync.reset(nullptr); + LOCK(m_headers_presync_mutex); + m_headers_presync_stats.erase(peer.m_id); + } } else { LogPrint(BCLog::NET, "Ignoring low-work chain (height=%u) from peer=%d\n", chain_start_header->nHeight + headers.size(), pfrom.GetId()); - // Since this is a low-work headers chain, no further processing is required. - headers = {}; - return true; } + + // The peer has not yet given us a chain that meets our work threshold, + // so we want to prevent further processing of the headers in any case. + headers = {}; + return true; } + return false; }