The thread triggering finalizer shutdown events should be in an alertable state. (#24133)

1 files changed, 5 insertions, 1 deletions

diff --git a/src/vm/finalizerthread.h b/src/vm/finalizerthread.h
index d5063b2166..3a62814d18 100644
--- a/src/vm/finalizerthread.h
+++ b/src/vm/finalizerthread.h
@@ -68,7 +68,11 @@ public:
 
         // Do not wait for FinalizerThread if the current one is FinalizerThread.
         if (GetThread() != GetFinalizerThread())
-            hEventFinalizerToShutDown->Wait(INFINITE,FALSE);
+        {
+            // This wait must be alertable to handle cases where the current
+            // thread's context is needed (i.e. RCW cleanup)
+            hEventFinalizerToShutDown->Wait(INFINITE, /*alertable*/ TRUE);
+        }
     }
 
     static void FinalizerThreadWait(DWORD timeout = INFINITE);