fix crash

Author: AllanZyne

source/loader/layers/sanitizer/asan_interceptor.cpp

@@ -186,6 +186,12 @@ SanitizerInterceptor::~SanitizerInterceptor() {
     DestroyShadowMemoryOnPVC();
     DestroyShadowMemoryOnDG2();
 
+    m_Quarantine = nullptr;
+    m_MemBufferMap.clear();
+    m_AllocationMap.clear();
+    m_KernelMap.clear();
+    m_ContextMap.clear();
+
     for (auto Adapter : m_Adapters) {
         getContext()->urDdiTable.Global.pfnAdapterRelease(Adapter);
     }

source/loader/layers/sanitizer/ur_sanddi.cpp

@@ -66,7 +66,7 @@ __urdlllocal ur_result_t UR_APICALL urAdapterGet(
     }
 
     ur_result_t result = pfnAdapterGet(NumEntries, phAdapters, pNumAdapters);
-    if (result == UR_RESULT_SUCCESS) {
+    if (result == UR_RESULT_SUCCESS && phAdapters) {
         const uint32_t NumAdapters = pNumAdapters ? *pNumAdapters : NumEntries;
         for (uint32_t i = 0; i < NumAdapters; ++i) {
             UR_CALL(getContext()->interceptor->holdAdapter(phAdapters[i]));

source/loader/ur_lib.cpp

@@ -57,7 +57,8 @@ void context_t::initLayers() const {
 }
 
 void context_t::tearDownLayers() const {
-    for (auto &[layer, destroy] : layers) {
+    for (auto it = layers.rbegin(); it != layers.rend(); ++it) {
+        auto [layer, destroy] = *it;
         layer->tearDown();
         destroy();
     }