From f7b3200e9f3dc9e2cbca966cb255c228453c792f Mon Sep 17 00:00:00 2001
From: Robin Freyler <robin.freyler@gmail.com>
Date: Fri, 1 Dec 2023 10:35:28 +0100
Subject: [PATCH] fix bug in wasmi executor

---
 crates/wasmi/src/engine/mod.rs | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/crates/wasmi/src/engine/mod.rs b/crates/wasmi/src/engine/mod.rs
index ec0adecacd..e870f0129d 100644
--- a/crates/wasmi/src/engine/mod.rs
+++ b/crates/wasmi/src/engine/mod.rs
@@ -647,7 +647,9 @@ impl<'engine> EngineExecutor<'engine> {
         Results: CallResults,
     {
         self.stack.reset();
-        self.stack.values.extend(params.call_params());
+        let call_params = params.call_params();
+        self.stack.values.reserve(call_params.len())?;
+        self.stack.values.extend(call_params);
         match ctx.as_context().store.inner.resolve_func(func) {
             FuncEntity::Wasm(wasm_func) => {
                 self.stack
@@ -689,7 +691,9 @@ impl<'engine> EngineExecutor<'engine> {
         self.stack
             .values
             .drop(host_func.ty(ctx.as_context()).params().len());
-        self.stack.values.extend(params.call_params());
+        let call_params = params.call_params();
+        self.stack.values.reserve(call_params.len())?;
+        self.stack.values.extend(call_params);
         assert!(
             self.stack.frames.peek().is_some(),
             "a frame must be on the call stack upon resumption"