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-rw-r--r--src/cryptonote_core/blockchain.cpp8
1 files changed, 8 insertions, 0 deletions
diff --git a/src/cryptonote_core/blockchain.cpp b/src/cryptonote_core/blockchain.cpp
index de3af8e02..5230864ec 100644
--- a/src/cryptonote_core/blockchain.cpp
+++ b/src/cryptonote_core/blockchain.cpp
@@ -1259,6 +1259,14 @@ bool Blockchain::handle_alternative_block(const block& b, const crypto::hash& id
return false;
}
+ // this is a cheap test
+ if (!m_hardfork->check_for_height(b, block_height))
+ {
+ LOG_PRINT_L1("Block with id: " << id << std::endl << "has old version for height " << block_height);
+ bvc.m_verifivation_failed = true;
+ return false;
+ }
+
//block is not related with head of main chain
//first of all - look in alternative chains container
auto it_prev = m_alternative_chains.find(b.prev_id);