AcceptBlock(), reject invalid PoS stake

furszy · furszy · commit 47759e113cb1 · 2019-01-29T16:45:00.000+01:00
diff --git a/src/main.cpp b/src/main.cpp
@@ -4655,6 +4655,11 @@ bool AcceptBlock(CBlock& block, CValidationState& state, CBlockIndex** ppindex,
         if(!stakeTxIn.IsZerocoinSpend()) {
             for (CTxIn in: stakeTxIn.vin) {
                 const CCoins* coin = coins.AccessCoins(in.prevout.hash);
+
+                if(!coin && !isBlockFromFork){
+                    // No coins on the main chain
+                    return error("%s: coin stake inputs not available on main chain", __func__);
+                }
                 if(coin && !coin->IsAvailable(in.prevout.n)){
                     // If this is not available get the height of the spent and validate it with the forked height
                     // Check if this occurred before the chain split
