From 7d9a97ee20ea4e9776d0beecd932548dd1bffaf0 Mon Sep 17 00:00:00 2001
From: Copilot Sandbox <sandbox@localhost>
Date: Wed, 18 Feb 2026 14:16:31 +0000
Subject: [PATCH] Fix memory leak in ICorDebugEnum::Clone on CordbEnumerator

Add cloned enumerator to the process continue neuter list so it gets
properly neutered during cleanup. Without this, cloned enumerators
leak their internal m_items array and trigger a debug assertion
failure (_ASSERTE(IsNeutered())) in the destructor.

Fixes #121925

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
---
 src/coreclr/debug/di/rsenumerator.hpp | 1 +
 1 file changed, 1 insertion(+)

diff --git a/src/coreclr/debug/di/rsenumerator.hpp b/src/coreclr/debug/di/rsenumerator.hpp
index d9bc2d6181f589..a6b4d2e0838463 100644
--- a/src/coreclr/debug/di/rsenumerator.hpp
+++ b/src/coreclr/debug/di/rsenumerator.hpp
@@ -213,6 +213,7 @@ HRESULT CordbEnumerator<ElemType,
         CordbEnumerator<ElemType, ElemPublicType, EnumInterfaceType, IID_EnumInterfaceType, GetPublicType>* clone =
             new CordbEnumerator<ElemType, ElemPublicType, EnumInterfaceType, IID_EnumInterfaceType, GetPublicType>(
                 GetProcess(), m_items, m_countItems);
+        GetProcess()->GetContinueNeuterList()->Add(GetProcess(), clone);
         clone->QueryInterface(__uuidof(ICorDebugEnum), (void**)ppEnum);
     }
     EX_CATCH_HRESULT(hr)