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vptr_blacklist.txt
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#############################################################################
# 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<T>).
src:*InspectorTypeBuilder.h*
type:*TypeBuilder*
type:*JSONArray*
#############################################################################
# Base class's constructor accesses a derived class's member.
fun:*DoublyLinkedListNode*
type:*content*WebUIExtensionData*
# RenderFrameObserverTracker<T>::RenderFrameObserverTracker()
fun:*content*RenderFrameObserverTracker*RenderFrame*
# RenderViewObserverTracker<T>::RenderViewObserverTracker()
fun:*content*RenderViewObserverTracker*RenderView*
#############################################################################
# Base class's destructor accesses a derived class.
fun:*DatabaseContext*contextDestroyed*
# FIXME: Cannot handle template function LifecycleObserver<>::setContext,
# so exclude source file for now.
src:*LifecycleObserver.h*
#############################################################################
# static_cast into itself in the constructor.
fun:*RefCountedGarbageCollected*makeKeepAlive*
fun:*ThreadSafeRefCountedGarbageCollected*makeKeepAlive*
#############################################################################
# Accessing data in destructors where the class has virtual inheritances.
type:*content*RenderWidgetHost*
# Match mangled name for X::~X().
fun:*content*RenderThreadImplD*
fun:*content*RenderViewHostImplD*
fun:*content*UtilityThreadImplD*
#############################################################################
# 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
#############################################################################
# UBSan seems to be emit false positives when virtual base classes are
# involved, see e.g. crbug.com/448102.
type:*v8*internal*OFStream*
#############################################################################
# UBsan is unable to handle static_cast<A*>(nullptr) and crashes on SIGSEGV.
#
# static_cast<StartPageService*> in StartPageServiceFactory::GetForProfile.
type:*StartPageService*
# Remove once function attribute level blacklisting is implemented.
# See crbug.com/476063.
fun:*forbidGCDuringConstruction*