From ec5e8b5fac0ca3524c01b826a048b0b293b63a7d Mon Sep 17 00:00:00 2001
From: Egor Bogatov <egorbo@gmail.com>
Date: Sun, 31 Jul 2022 07:42:25 +0200
Subject: [PATCH] [GC] Handle objects from frozen segments in
 GCHeap::IsEphemeral (#73110)

---
 src/coreclr/gc/gc.cpp | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/src/coreclr/gc/gc.cpp b/src/coreclr/gc/gc.cpp
index 5c5970d3..e278bba 100644
--- a/src/coreclr/gc/gc.cpp
+++ b/src/coreclr/gc/gc.cpp
@@ -44690,6 +44690,13 @@ unsigned int GCHeap::GetGenerationWithRange (Object* object, uint8_t** ppStart,
 bool GCHeap::IsEphemeral (Object* object)
 {
     uint8_t* o = (uint8_t*)object;
+#if defined(FEATURE_BASICFREEZE) && defined(USE_REGIONS)
+    if (!is_in_heap_range (o))
+    {
+        // Objects in frozen segments are not ephemeral
+        return FALSE;
+    }
+#endif
     gc_heap* hp = gc_heap::heap_of (o);
     return !!hp->ephemeral_pointer_p (o);
 }
-- 
2.7.4