[QNN-EP] Fix use-after-free of logger object

onnxruntime/core/providers/qnn/builder/qnn_backend_manager.cc

@@ -468,9 +468,7 @@ void QnnLogging(const char* format,
   }
 }
 
-Status QnnBackendManager::InitializeQnnLog(const logging::Logger& logger) {
-  logger_ = &logger;
-
+Status QnnBackendManager::InitializeQnnLog() {
   // Set Qnn log level align with Ort log level
   auto ort_log_level = logger_->GetSeverity();
   QnnLog_Level_t qnn_log_level = MapOrtSeverityToQNNLogLevel(ort_log_level);
@@ -1564,6 +1562,8 @@ Status QnnBackendManager::SetupBackend(const logging::Logger& logger,
                                        std::unordered_map<std::string, std::unique_ptr<std::vector<std::string>>>& context_bin_map,
                                        bool enable_htp_extended_udma_mode) {
   std::lock_guard<std::recursive_mutex> lock(logger_recursive_mutex_);
+  if (logger_ != &logger)
+    logger_ = &logger;
   if (backend_setup_completed_) {
     LOGS(logger, VERBOSE) << "Backend setup already!";
 
@@ -1630,7 +1630,7 @@ Status QnnBackendManager::SetupBackend(const logging::Logger& logger,
   }
 
   if (status.IsOK()) {
-    status = InitializeQnnLog(logger);
+    status = InitializeQnnLog();
   }
   if (status.IsOK()) {
     LOGS(logger, VERBOSE) << "SetLogger succeed.";

onnxruntime/core/providers/qnn/builder/qnn_backend_manager.h

@@ -321,7 +321,7 @@ class QnnBackendManager : public std::enable_shared_from_this<QnnBackendManager>
 
   // Sets the ORT logger and creates a corresponding QNN logger with the same log level.
   // NOTE: caller must lock the `logger_recursive_mutex_` before calling this function.
-  Status InitializeQnnLog(const logging::Logger& logger);
+  Status InitializeQnnLog();
 
   // Terminate logging in the backend
   // NOTE: This function locks the internal `logger_recursive_mutex_`.