Merge #11578: net: Add missing lock in ProcessHeadersMessage(...)
2530bf2
net: Add missing lock in ProcessHeadersMessage(...) (practicalswift) Pull request description: Add missing lock in `ProcessHeadersMessage(...)`. Reading the variable `mapBlockIndex` requires holding the mutex `cs_main`. The new "Disconnect outbound peers relaying invalid headers" code added in commit37886d5e2f
and merged as part of #11568 two days ago did not lock `cs_main` prior to accessing `mapBlockIndex`. Tree-SHA512: b799c234be8043d036183a00bc7867bbf3bd7ffe3baa94c88529da3b3cd0571c31ed11dadfaf29c5b8498341d6d0a3c928029a43b69f3267ef263682c91563a3
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1 changed files with 1 additions and 1 deletions
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@ -1262,8 +1262,8 @@ bool static ProcessHeadersMessage(CNode *pfrom, CConnman *connman, const std::ve
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if (!ProcessNewBlockHeaders(headers, state, chainparams, &pindexLast, &first_invalid_header)) {
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int nDoS;
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if (state.IsInvalid(nDoS)) {
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LOCK(cs_main);
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if (nDoS > 0) {
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LOCK(cs_main);
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Misbehaving(pfrom->GetId(), nDoS);
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}
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if (punish_duplicate_invalid && mapBlockIndex.find(first_invalid_header.GetHash()) != mapBlockIndex.end()) {
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