From be1d374bc54d43aae3b3c1feace22d38fe2156b6 Mon Sep 17 00:00:00 2001
From: Matthias Baesken <mbaesken@openjdk.org>
Date: Mon, 27 May 2024 14:32:30 +0000
Subject: [PATCH] 8332825: ubsan: guardedMemory.cpp:35:11: runtime error: null
 pointer passed as argument 2, which is declared to never be null

Reviewed-by: clanger, mdoerr
---
 src/hotspot/share/memory/guardedMemory.cpp | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/src/hotspot/share/memory/guardedMemory.cpp b/src/hotspot/share/memory/guardedMemory.cpp
index 91adb016c6578..7b676d725882a 100644
--- a/src/hotspot/share/memory/guardedMemory.cpp
+++ b/src/hotspot/share/memory/guardedMemory.cpp
@@ -32,7 +32,9 @@ void* GuardedMemory::wrap_copy(const void* ptr, const size_t len, const void* ta
   if (outerp != nullptr) {
     GuardedMemory guarded(outerp, len, tag);
     void* innerp = guarded.get_user_ptr();
-    memcpy(innerp, ptr, len);
+    if (ptr != nullptr) {
+      memcpy(innerp, ptr, len);
+    }
     return innerp;
   }
   return nullptr; // OOM