1 files changed, 5 insertions, 1 deletions
diff --git a/src/corelib/kernel/qvariant.cpp b/src/corelib/kernel/qvariant.cpp
index 227a60d..07c9e53 100644
--- a/src/corelib/kernel/qvariant.cpp
+++ b/src/corelib/kernel/qvariant.cpp
@@ -484,9 +484,13 @@ static bool compare(const QVariant::Private *a, const QVariant::Private *b)
      * QMetaType::VoidStar, QMetaType::QObjectStar and so forth, is that it wouldn't include
      * user defined pointer types. */
     const char *const typeName = QMetaType::typeName(a->type);
-    if (typeName[qstrlen(typeName) - 1] == '*')
+    uint typeNameLen = qstrlen(typeName);
+    if (typeNameLen > 0 && typeName[typeNameLen - 1] == '*')
         return *static_cast<void *const *>(a_ptr) == *static_cast<void *const *>(b_ptr);
 
+    if (a->is_null && b->is_null)
+        return true;
+
     return a_ptr == b_ptr;
 }