From 8694e4599702359568047c243639ce4326ce6118 Mon Sep 17 00:00:00 2001
From: Jan Vorlicek <janvorli@microsoft.com>
Date: Fri, 3 Oct 2025 20:59:23 +0200
Subject: [PATCH] Protect throwable around interpreted funclet call

The InterpreterCodeManager::CallFunclet was not protecting the
exceptionClauseArgs.throwable across the call to the interpreter.
That lead to assert in some cases.

This change fixes it.
---
 src/coreclr/vm/eetwain.cpp | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/src/coreclr/vm/eetwain.cpp b/src/coreclr/vm/eetwain.cpp
index 5c8b653a3c3a8b..5f61acdfbc7b4d 100644
--- a/src/coreclr/vm/eetwain.cpp
+++ b/src/coreclr/vm/eetwain.cpp
@@ -2186,7 +2186,9 @@ DWORD_PTR InterpreterCodeManager::CallFunclet(OBJECTREF throwable, void* pHandle
     exceptionClauseArgs.isFilter = isFilter;
     exceptionClauseArgs.throwable = throwable;
 
+    GCPROTECT_BEGIN(exceptionClauseArgs.throwable);
     InterpExecMethod(&frames.interpreterFrame, &frames.interpMethodContextFrame, threadContext, &exceptionClauseArgs);
+    GCPROTECT_END();
 
     frames.interpreterFrame.Pop();