2 files changed, 6 insertions, 2 deletions
diff --git a/src/validation.cpp b/src/validation.cpp
index 7c0654c2c6..bc69bc4230 100644
--- a/src/validation.cpp
+++ b/src/validation.cpp
@@ -2821,6 +2821,8 @@ static void LimitValidationInterfaceQueue() LOCKS_EXCLUDED(cs_main) {
 
 bool CChainState::ActivateBestChain(BlockValidationState& state, std::shared_ptr<const CBlock> pblock)
 {
+    AssertLockNotHeld(m_chainstate_mutex);
+
     // Note that while we're often called here from ProcessNewBlock, this is
     // far from a guarantee. Things in the P2P/RPC will often end up calling
     // us in the middle of ProcessNewBlock - do not assume pblock is set
@@ -2950,6 +2952,8 @@ bool CChainState::PreciousBlock(BlockValidationState& state, CBlockIndex* pindex
 
 bool CChainState::InvalidateBlock(BlockValidationState& state, CBlockIndex* pindex)
 {
+    AssertLockNotHeld(m_chainstate_mutex);
+
     // Genesis block can't be invalidated
     assert(pindex);
     if (pindex->nHeight == 0) return false;
diff --git a/src/validation.h b/src/validation.h
index ae3749bb47..d3c43c26e5 100644
--- a/src/validation.h
+++ b/src/validation.h
@@ -700,7 +700,7 @@ public:
      */
     bool ActivateBestChain(
         BlockValidationState& state,
-        std::shared_ptr<const CBlock> pblock = nullptr) LOCKS_EXCLUDED(cs_main);
+        std::shared_ptr<const CBlock> pblock = nullptr) LOCKS_EXCLUDED(m_chainstate_mutex, cs_main);
 
     bool AcceptBlock(const std::shared_ptr<const CBlock>& pblock, BlockValidationState& state, CBlockIndex** ppindex, bool fRequested, const FlatFilePos* dbp, bool* fNewBlock) EXCLUSIVE_LOCKS_REQUIRED(cs_main);
 
@@ -720,7 +720,7 @@ public:
      */
     bool PreciousBlock(BlockValidationState& state, CBlockIndex* pindex) LOCKS_EXCLUDED(cs_main);
     /** Mark a block as invalid. */
-    bool InvalidateBlock(BlockValidationState& state, CBlockIndex* pindex) LOCKS_EXCLUDED(cs_main);
+    bool InvalidateBlock(BlockValidationState& state, CBlockIndex* pindex) LOCKS_EXCLUDED(m_chainstate_mutex, cs_main);
     /** Remove invalidity status from a block and its descendants. */
     void ResetBlockFailureFlags(CBlockIndex* pindex) EXCLUSIVE_LOCKS_REQUIRED(cs_main);