From bc32ff6057ce423e6c208d9f5c8c6c27ec871cbf Mon Sep 17 00:00:00 2001
From: Pieter Wuille <pieter@wuille.net>
Date: Fri, 17 Feb 2023 16:29:49 -0500
Subject: [PATCH] BIP341 txdata cannot be precomputed without spent outputs

Github-Pull: #27122
Rebased-From: 95f12de92505522a32ba58acd5251c69e602d160
(cherry picked from commit 95f12de92505522a32ba58acd5251c69e602d160)
---
 src/script/interpreter.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/script/interpreter.cpp b/src/script/interpreter.cpp
index ce08a5544a0..09ce746f0ba 100644
--- a/src/script/interpreter.cpp
+++ b/src/script/interpreter.cpp
@@ -2585,7 +2585,7 @@ void PrecomputedTransactionData::Init(const T& txTo, std::vector<CTxOut>&& spent
         hashRangeproofs = GetRangeproofsHash(txTo);
         m_bip143_segwit_ready = true;
     }
-    if (uses_bip341_taproot) {
+    if (uses_bip341_taproot && m_spent_outputs_ready) {
         // line copied from GetTransactionWeight() in src/consensus/validation.h
         // (we cannot directly use that function for type reasons)
         m_tx_weight = ::GetSerializeSize(txTo, PROTOCOL_VERSION | SERIALIZE_TRANSACTION_NO_WITNESS) * (WITNESS_SCALE_FACTOR - 1) + ::GetSerializeSize(txTo, PROTOCOL_VERSION);