############################################################################# # UBSan vptr blacklist. # Function and type based blacklisting use a mangled name, and it is especially # tricky to represent C++ types. For now, any possible changes by name manglings # are simply represented as wildcard expressions of regexp, and thus it might be # over-blacklisted. ############################################################################# # Identical layouts. # If base and derived classes have identifical memory layouts (i.e., the same # object size) and both have no virtual functions, we blacklist them as there # would be not much security implications. fun:*LifecycleNotifier*addObserver* fun:*LifecycleNotifier*removeObserver* fun:*toWebInputElement* type:*base*MessageLoopForIO* type:*BlockRefType* type:*SkAutoTUnref* type:*WDResult* type:*ExecutionContext* type:*WebInputElement* type:*WebFormControlElement* # Avoid identical layout cases for 86 different classes in InspectorTypeBuilder, # all of which are guarded using COMPILER_ASSERT on the object size. Two more # types are also blacklisted due to the template class (JSONArray <-> Array). src:*InspectorTypeBuilder.h* type:*TypeBuilder* type:*JSONArray* ############################################################################# # Base class's constructor accesses a derived class's member. fun:*DoublyLinkedListNode* type:*content*WebUIExtensionData* type:*v8*internal*CompilationInfo* # RenderFrameObserverTracker::RenderFrameObserverTracker() fun:*content*RenderFrameObserverTracker*RenderFrame* # RenderViewObserverTracker::RenderViewObserverTracker() fun:*content*RenderViewObserverTracker*RenderView* ############################################################################# # Base class's destructor accesses a derived class. fun:*DatabaseContext*contextDestroyed* ############################################################################# # static_cast into itself in the constructor. fun:*RefCountedGarbageCollected*makeKeepAlive* fun:*ThreadSafeRefCountedGarbageCollected*makeKeepAlive* ############################################################################# # Accessing data in destructurors where the class has virtual inheritances. type:*content*RenderWidgetHost* # Mangled name for content::RenderViewHostImpl::~RenderViewHostImpl() fun:*content*RenderViewHostImpl* ############################################################################# # Using raw pointer values. # # A raw pointer value (16) is used to infer the field offset by # GOOGLE_PROTOBUF_GENERATED_MESSAGE_FIELD_OFFSET. src:*/third_party/protobuf/src/google/protobuf/compiler/plugin.pb.cc src:*/third_party/protobuf/src/google/protobuf/compiler/cpp/cpp_message.cc src:*/third_party/protobuf/src/google/protobuf/descriptor.pb.cc ############################################################################# # Avoid link errors. # Ubsan vptr needs typeinfo on the target class, but it looks like typeinfo is # not avaiable if the class is not exported. For now, simply blacklisted to # avoid link errors; e.g., undefined reference to 'typeinfo for [CLASS_NAME]'. # obj/ppapi/libppapi_proxy.a(obj/ppapi/proxy/ppapi_proxy.proxy_channel.o):../../ppapi/proxy/proxy_channel.cc:__unnamed_53: error: undefined reference to 'typeinfo for IPC::TestSink' src:*/ppapi/proxy/proxy_channel.cc # obj/chrome/libbrowser.a(obj/chrome/browser/net/browser.predictor.o):../../chrome/browser/net/predictor.cc:__unnamed_577: error: undefined reference to 'typeinfo for ProxyAdvisor' src:*/chrome/browser/net/predictor.cc # obj/third_party/pdfium/libfpdfapi.a(obj/third_party/pdfium/core/src/fpdfapi/fpdf_render/fpdfapi.fpdf_render_text.o):../../third_party/pdfium/core/src/fpdfapi/fpdf_render/:__unnamed_360: error: undefined reference to 'typeinfo for CPDF_InlineImages' src:*/third_party/pdfium/core/src/fpdfapi/fpdf_render/fpdf_render_text.cpp # obj/third_party/libwebm/libwebm.a(obj/third_party/libwebm/source/libwebm.mkvmuxer.o)(.data.rel..L__unnamed_2+0x18): error: undefined reference to 'typeinfo for mkvparser::IMkvReader' src:*/third_party/libwebm/source/mkvmuxer.cpp