From 084c3b4114b52aabf7e7c31664482296bdcbafc7 Mon Sep 17 00:00:00 2001
From: Mike McLaughlin <mikem@microsoft.com>
Date: Mon, 9 Dec 2024 16:19:55 -0800
Subject: [PATCH] Fix AV error in DAC on Linux/MacOS - issue #109877

---
 src/coreclr/debug/daccess/request.cpp | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/src/coreclr/debug/daccess/request.cpp b/src/coreclr/debug/daccess/request.cpp
index 34ce7f2aa8827d..9e0a56fb50c13f 100644
--- a/src/coreclr/debug/daccess/request.cpp
+++ b/src/coreclr/debug/daccess/request.cpp
@@ -1049,6 +1049,11 @@ HRESULT ClrDataAccess::GetMethodDescData(
             {
                 ILCodeVersion activeILCodeVersion = pCodeVersionManager->GetActiveILCodeVersion(pMD);
                 activeNativeCodeVersion = activeILCodeVersion.GetActiveNativeCodeVersion(pMD);
+                if (activeNativeCodeVersion.IsNull())
+                {
+                    // This is caught below and S_OK is returned
+                    DacError(E_ACCESSDENIED);
+                }
             }
             CopyNativeCodeVersionToReJitData(
                 activeNativeCodeVersion,