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validation: Hold cs_main when reading chainActive in RewindBlockIndex

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practicalswift 2019-05-12 21:48:40 +02:00
parent e79bbb73e0
commit 1609809fb2
1 changed files with 1 additions and 0 deletions
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src/validation.cpp
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@ -4316,6 +4316,7 @@ bool RewindBlockIndex(const CChainParams& params) {
return false; return false;
} }
LOCK(cs_main);
if (::ChainActive().Tip() != nullptr) { if (::ChainActive().Tip() != nullptr) {
// FlushStateToDisk can possibly read ::ChainActive(). Be conservative // FlushStateToDisk can possibly read ::ChainActive(). Be conservative
// and skip it here, we're about to -reindex-chainstate anyway, so // and skip it here, we're about to -reindex-chainstate anyway, so