1 files changed, 14 insertions, 7 deletions
diff --git a/src/wallet/wallet.cpp b/src/wallet/wallet.cpp
index 08e480225d..9e0befac43 100644
--- a/src/wallet/wallet.cpp
+++ b/src/wallet/wallet.cpp
@@ -1611,14 +1611,15 @@ bool CWallet::ImportScriptPubKeys(const std::string& label, const std::set<CScri
     return true;
 }
 
-int64_t CalculateMaximumSignedTxSize(const CTransaction &tx, const CWallet *wallet, bool use_max_sig)
+// Returns pair of vsize and weight
+std::pair<int64_t, int64_t> CalculateMaximumSignedTxSize(const CTransaction &tx, const CWallet *wallet, bool use_max_sig)
 {
     std::vector<CTxOut> txouts;
     for (const CTxIn& input : tx.vin) {
         const auto mi = wallet->mapWallet.find(input.prevout.hash);
         // Can not estimate size without knowing the input details
         if (mi == wallet->mapWallet.end()) {
-            return -1;
+            return std::make_pair(-1, -1);
         }
         assert(input.prevout.n < mi->second.tx->vout.size());
         txouts.emplace_back(mi->second.tx->vout[input.prevout.n]);
@@ -1627,13 +1628,16 @@ int64_t CalculateMaximumSignedTxSize(const CTransaction &tx, const CWallet *wall
 }
 
 // txouts needs to be in the order of tx.vin
-int64_t CalculateMaximumSignedTxSize(const CTransaction &tx, const CWallet *wallet, const std::vector<CTxOut>& txouts, bool use_max_sig)
+std::pair<int64_t, int64_t> CalculateMaximumSignedTxSize(const CTransaction &tx, const CWallet *wallet, const std::vector<CTxOut>& txouts, bool use_max_sig)
 {
     CMutableTransaction txNew(tx);
     if (!wallet->DummySignTx(txNew, txouts, use_max_sig)) {
-        return -1;
+        return std::make_pair(-1, -1);
     }
-    return GetVirtualTransactionSize(CTransaction(txNew));
+    CTransaction ctx(txNew);
+    int64_t vsize = GetVirtualTransactionSize(ctx);
+    int64_t weight = GetTransactionWeight(ctx);
+    return std::make_pair(vsize, weight);
 }
 
 int CalculateMaximumSignedInputSize(const CTxOut& txout, const CWallet* wallet, bool use_max_sig)
@@ -2779,6 +2783,7 @@ bool CWallet::CreateTransactionInternal(
     CMutableTransaction txNew;
     FeeCalculation feeCalc;
     CAmount nFeeNeeded;
+    std::pair<int64_t, int64_t> tx_sizes;
     int nBytes;
     {
         std::set<CInputCoin> setCoins;
@@ -2962,7 +2967,8 @@ bool CWallet::CreateTransactionInternal(
                     txNew.vin.push_back(CTxIn(coin.outpoint,CScript()));
                 }
 
-                nBytes = CalculateMaximumSignedTxSize(CTransaction(txNew), this, coin_control.fAllowWatchOnly);
+                tx_sizes = CalculateMaximumSignedTxSize(CTransaction(txNew), this, coin_control.fAllowWatchOnly);
+                nBytes = tx_sizes.first;
                 if (nBytes < 0) {
                     error = _("Signing transaction failed");
                     return false;
@@ -3072,7 +3078,8 @@ bool CWallet::CreateTransactionInternal(
         tx = MakeTransactionRef(std::move(txNew));
 
         // Limit size
-        if (GetTransactionWeight(*tx) > MAX_STANDARD_TX_WEIGHT)
+        if ((sign && GetTransactionWeight(*tx) > MAX_STANDARD_TX_WEIGHT) ||
+            (!sign && tx_sizes.second > MAX_STANDARD_TX_WEIGHT))
         {
             error = _("Transaction too large");
             return false;