1 files changed, 6 insertions, 0 deletions
diff --git a/src/rpc/blockchain.cpp b/src/rpc/blockchain.cpp
index 57b5178d78..50bf764e53 100644
--- a/src/rpc/blockchain.cpp
+++ b/src/rpc/blockchain.cpp
@@ -2281,6 +2281,12 @@ static RPCHelpMan dumptxoutset()
 
     FILE* file{fsbridge::fopen(temppath, "wb")};
     CAutoFile afile{file, SER_DISK, CLIENT_VERSION};
+    if (afile.IsNull()) {
+        throw JSONRPCError(
+            RPC_INVALID_PARAMETER,
+            "Couldn't open file " + temppath.u8string() + " for writing.");
+    }
+
     NodeContext& node = EnsureAnyNodeContext(request.context);
     UniValue result = CreateUTXOSnapshot(
         node, node.chainman->ActiveChainstate(), afile, path, temppath);