From 2b336dccc0c51edbaac802a94b5c0f7e3d2cf502 Mon Sep 17 00:00:00 2001
From: Duke Leto <duke@leto.net>
Date: Thu, 9 Jun 2022 06:41:09 -0400
Subject: [PATCH] Fix ending height bug and check that ending height is larger
 than starting height

---
 src/wallet/rpcwallet.cpp | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/src/wallet/rpcwallet.cpp b/src/wallet/rpcwallet.cpp
index 3a5498f19..8e6d8b128 100644
--- a/src/wallet/rpcwallet.cpp
+++ b/src/wallet/rpcwallet.cpp
@@ -3716,11 +3716,15 @@ UniValue z_anonsetblockdelta(const UniValue& params, bool fHelp, const CPubKey&
         std::string strHeight2 = params[1].get_str();
         int nHeight2 = -1;
         try {
-            nHeight = std::stoi(strHeight2);
+            nHeight2 = std::stoi(strHeight2);
         } catch (const std::exception &e) {
             throw JSONRPCError(RPC_INVALID_PARAMETER, "Invalid ending block height parameter");
         }
 
+        if (nHeight2 <= nHeight) {
+            throw JSONRPCError(RPC_INVALID_PARAMETER, "Ending block height must be larger than starting height");
+        }
+
         if (nHeight2 < 0 || nHeight2 > chainActive.Height()) {
             throw JSONRPCError(RPC_INVALID_PARAMETER, "Ending block height out of range");
         }