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CVE-2026-3919

UAF in Extensions (Extensions Bindings)
High watch CVSS 8.8 chrome UAF 📄 Reporter bug report 🔧 Commit mapped

Overview

High
Severity
8.8
CVSS
No
Exploited ITW
Fixed
Fix Status
ImpactUse after free in Extensions
DescriptionUse after free in Extensions
ComponentExtensions
Sub-componentExtensions Bindings
Bug ClassUAF
Action tierwatch — corruption primitive but gated (uncommon) — not default-reachable
Computed by PatchGap's deterministic exploitability ruler from the fixing commit. patch-now = RCE-class & attacker-reachable in a default config, or exploited in the wild; watch = real security signal below that bar; noise = no security relevance.
Tracker444176961
Fix commit5ec924bc3b4a (chromium/src) +40/-9
CWECWE-416 (Use-after-free)
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
CISA KEVNot listed
CreditedHuinian Yang (@vmth6) of Amber Security Lab, OPPO Mobile Telecommunications Corp. Ltd.
Reported2025-09-10 · bounty $2000 (per vendor advisory)
Fix landed2025-12-22 (public git)
Disclosed2026-03-10
Patch gap78 days — fix public in source before the advisory

Background

`gin::PerContextData`
a per-v8::Context user-data container that extension bindings use to attach C++ state (such as ContextInvalidationData and BindingsSystemPerContextData) to a script context.
`ContextInvalidationData`
per-context state that records whether an extension bindings context is still valid; InvalidateContext marks it invalid when the context is being released.
Context validity check
the api_binding_util.cc helper (declared next to IsContextValidOrThrowError) that extension API bindings consult before doing work in a context, to avoid touching bindings state for a torn-down context.
`WillReleaseContext` / context teardown
the path (APIBindingsSystem::WillReleaseContext) that runs when a script context is being destroyed and calls binding::InvalidateContext.

Root Cause Analysis

Before the patch, ContextInvalidationData was created lazily, and the validity check treated a context as valid if gin::PerContextData existed and either no invalidation data existed or it had not been marked invalid (!invalidation_data || invalidation_data->is_context_valid()), i.e. absence of the marker failed open. Consequently binding::InvalidateContext had to call GetPerContextData<ContextInvalidationData> with kCreateIfMissing, allocating and attaching new per-context user data while the context was being torn down, and silently returned if that yielded nothing.

The fix creates ContextInvalidationData up front through the new binding::InitializeContext (called from the new APIBindingsSystem::DidCreateContext, which native_extension_bindings_system.cc now calls before installing BindingsSystemPerContextData), flips the validity check to fail closed (invalidation_data && invalidation_data->is_context_valid()), and makes InvalidateContext look up with kDontCreateIfMissing and CHECK(data). This tightens validity: any context whose invalidation marker is absent is now treated as invalid rather than valid. The diff does not identify the specific freed object or the call sequence behind the advisory’s use-after-free (the commit uses Bug: and describes the change as removing a “code smell”); the most plausible link is that a context could be judged valid while its per-context bindings state was missing or being destroyed, letting bindings code use freed per-context objects (inferred). The enclosing function name of the first api_binding_util.cc hunk and of the native_extension_bindings_system.cc hunk is not shown in the diff.

Key insight
Extension bindings inferred “context valid” from the absence of an invalidation record and created that record during teardown; the fix initializes it at context creation and treats a missing record as invalid, so validity fails closed.

Attack Path

  1. Context with extension bindings A renderer script context gets extension bindings set up by NativeExtensionBindingsSystem (e.g., an extension page, content script, or a web context exposed to some chrome.* bindings); which context types matter is (inferred).
  2. Begin context teardown The context is released (e.g., frame removal or navigation), reaching APIBindingsSystem::WillReleaseContext and binding::InvalidateContext, which pre-patch lazily created ContextInvalidationData during cleanup.
  3. Validity check fails open Bindings code consulting the validity helper while the invalidation marker is absent treated the context as valid and proceeded with API/request handling (inferred).
  4. Use of torn-down state That work dereferences per-context bindings objects that have already been released, producing the advisory’s use-after-free (inferred); the diff does not show the freed object.

Impact Assessment

The vendor advisory rates this a high severity use-after-free in Extensions; the affected code runs in the renderer process, and any resulting memory corruption or code execution in that sandboxed renderer is (inferred). The diff does not establish the preconditions: it changes generic extension-bindings context lifecycle code, so reaching it requires a context with extension bindings and some interaction with context teardown timing, but whether ordinary web content in a stock build suffices or an installed extension is required is not shown. After the fix, a missing marker now produces an “invalid context” result or a deliberate CHECK crash in InvalidateContext rather than continued use.

Changed Functions

FunctionChangeNotes
if
extensions/renderer/bindings/api_binding_util.cc
 modified

Files Changed

  • extensions/renderer/bindings/api_binding_test.cc
  • extensions/renderer/bindings/api_binding_util.cc
  • extensions/renderer/bindings/api_binding_util.h
  • extensions/renderer/bindings/api_bindings_system.cc
  • extensions/renderer/bindings/api_bindings_system.h
  • extensions/renderer/native_extension_bindings_system.cc

Audit Directions

  • Fail-open "absence means valid" checks
    Look across extensions/renderer/ and gin-based bindings for validity/liveness checks that default to valid when per-context state is missing, and convert them to fail closed.
  • Allocation during teardown
    Audit WillReleaseContext/ScriptContext invalidation paths for code that lazily creates PerContextData user data or other state while a context is being destroyed.
  • Callbacks into released contexts
    Review request handlers, event listeners, and pending API callbacks that can fire after WillReleaseContext begins, checking that they re-validate the context before touching per-context objects.

Patch

view commit
From 5ec924bc3b4a65cd06fbb8385d6b2563d60c8197 Mon Sep 17 00:00:00 2001
From: Devlin Cronin <rdevlin.cronin@chromium.org>
Date: Mon, 22 Dec 2025 15:19:35 -0800
Subject: [PATCH] [Extensions Bindings] Don't create invalidation data when invalidating

We track whether a given context is valid via an "invalidation data"
that's stored on the context via gin::PerContextData. Today, we lazily
create this data, and consider a context valid if it either has no
invalidation data or the invalidation data indicates the context is
still valid.

Unfortunately, because we consider "no invalidation data" (but still
gin::PerContextData) to be an indication of a valid state, we need to
*create* an invalidation data in InvalidateContext() if one hasn't
already been made. This is a bit weird, since we're adding a new
PerContextData to a context as it's being cleaned up.

Fix this code smell by always instantiating a ContextInvalidationData
entry for each new context. This way, we don't have to create a new
one during the context invalidation flow, and can treat absence of
invalidation data as a signal of an invalid context.

Bug: 444176961
Change-Id: I717e7dd74f3e0ef8b78a36a839174360a3b57a7f
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/7281900
Commit-Queue: Devlin Cronin <rdevlin.cronin@chromium.org>
Reviewed-by: Tim <tjudkins@chromium.org>
Cr-Commit-Position: refs/heads/main@{#1562006}
---

diff --git a/extensions/renderer/bindings/api_binding_test.cc b/extensions/renderer/bindings/api_binding_test.cc
index fdba8570..deb0062 100644
--- a/extensions/renderer/bindings/api_binding_test.cc
+++ b/extensions/renderer/bindings/api_binding_test.cc
@@ -7,6 +7,7 @@
 #include <algorithm>
 
 #include "base/task/single_thread_task_runner.h"
+#include "extensions/renderer/bindings/api_binding_util.h"
 #include "gin/array_buffer.h"
 #include "gin/public/context_holder.h"
 #include "gin/public/isolate_holder.h"
@@ -44,6 +45,8 @@
   context->Enter();
   main_context_holder_ = std::make_unique<gin::ContextHolder>(isolate());
   main_context_holder_->SetContext(context);
+
+  binding::InitializeContext(context);
 }
 
 void APIBindingTest::TearDown() {
@@ -102,6 +105,7 @@
       v8::Context::New(isolate(), GetV8ExtensionConfiguration());
   holder->SetContext(context);
   additional_context_holders_.push_back(std::move(holder));
+  binding::InitializeContext(context);
   return context;
 }
 
diff --git a/extensions/renderer/bindings/api_binding_util.cc b/extensions/renderer/bindings/api_binding_util.cc
index da66db9..7efcc47 100644
--- a/extensions/renderer/bindings/api_binding_util.cc
+++ b/extensions/renderer/bindings/api_binding_util.cc
@@ -88,13 +88,13 @@
   if (!per_context_data)
     return false;
 
-  auto* invalidation_data =
-      static_cast<ContextInvalidationData*>(per_context_data->GetUserData(
-          ContextInvalidationData::kPerContextDataKey));
-  // The context is valid if we've never created invalidation data for it, or if
-  // we have and it hasn't been marked as invalid.
+  auto* invalidation_data = GetPerContextData<ContextInvalidationData>(
+      context, CreatePerContextData::kDontCreateIfMissing);
+
+  // The context is valid as long as the invalidation data is present and not
+  // marked invalid.
   bool is_context_valid =
-      !invalidation_data || invalidation_data->is_context_valid();
+      invalidation_data && invalidation_data->is_context_valid();
 
   if (is_context_valid) {
     // As long as the context is valid, there should be an associated
@@ -116,11 +116,26 @@
   return false;
 }
 
+void InitializeContext(v8::Local<v8::Context> context) {
+  gin::PerContextData* per_context_data = gin::PerContextData::From(context);
+  CHECK(per_context_data);
+
+  // It would be nice to CHECK() that the invalidation data does *not* yet exist
+  // (since this means we're calling InitializeContext() twice), but a number of
+  // tests do this as part of their setup. It's also fairly harmless.
+  if (per_context_data->GetUserData(
+          ContextInvalidationData::kPerContextDataKey)) {
+    return;
+  }
+
+  per_context_data->SetUserData(ContextInvalidationData::kPerContextDataKey,
+                                std::make_unique<ContextInvalidationData>());
+}
+
 void InvalidateContext(v8::Local<v8::Context> context) {
   ContextInvalidationData* data = GetPerContextData<ContextInvalidationData>(
-      context, CreatePerContextData::kCreateIfMissing);
-  if (!data)
-    return;
+      context, CreatePerContextData::kDontCreateIfMissing);
+  CHECK(data);
 
   data->Invalidate();
 }
diff --git a/extensions/renderer/bindings/api_binding_util.h b/extensions/renderer/bindings/api_binding_util.h
index c3297c8..35bb1ad 100644
--- a/extensions/renderer/bindings/api_binding_util.h
+++ b/extensions/renderer/bindings/api_binding_util.h
@@ -30,6 +30,9 @@
 // Same as above, but throws an exception in the `context` if it is invalid.
 bool IsContextValidOrThrowError(v8::Local<v8::Context> context);
 
+// Initializes the given `context`.
+void InitializeContext(v8::Local<v8::Context> context);
+
 // Marks the given `context` as invalid.
 void InvalidateContext(v8::Local<v8::Context> context);
 
diff --git a/extensions/renderer/bindings/api_bindings_system.cc b/extensions/renderer/bindings/api_bindings_system.cc
index 91816387..e66fedd05 100644
--- a/extensions/renderer/bindings/api_bindings_system.cc
+++ b/extensions/renderer/bindings/api_bindings_system.cc
@@ -155,6 +155,10 @@
   custom_types_[type_name] = std::move(function);
 }
 
+void APIBindingsSystem::DidCreateContext(v8::Local<v8::Context> context) {
+  binding::InitializeContext(context);
+}
+
 void APIBindingsSystem::WillReleaseContext(v8::Local<v8::Context> context) {
   binding::InvalidateContext(context);
   request_handler_.InvalidateContext(context);
diff --git a/extensions/renderer/bindings/api_bindings_system.h b/extensions/renderer/bindings/api_bindings_system.h
index 0e568680..af41434 100644
--- a/extensions/renderer/bindings/api_bindings_system.h
+++ b/extensions/renderer/bindings/api_bindings_system.h
@@ -90,6 +90,9 @@
   void RegisterCustomType(const std::string& type_name,
                           CustomTypeHandler function);
 
+  // Handles any initialization of the context. This should be called before any
+  // APIs or other objects are created.
+  void DidCreateContext(v8::Local<v8::Context> context);
   // Handles any cleanup necessary before releasing the given `context`.
   void WillReleaseContext(v8::Local<v8::Context> context);
 
diff --git a/extensions/renderer/native_extension_bindings_system.cc b/extensions/renderer/native_extension_bindings_system.cc
index 314d4e5d..048bcd38 100644
--- a/extensions/renderer/native_extension_bindings_system.cc
+++ b/extensions/renderer/native_extension_bindings_system.cc
@@ -487,6 +487,8 @@
   DCHECK(per_context_data);
   DCHECK(!per_context_data->GetUserData(kBindingsSystemPerContextKey));
 
+  api_system_.DidCreateContext(v8_context);
+
   auto data = std::make_unique<BindingsSystemPerContextData>(
       weak_factory_.GetWeakPtr());
   per_context_data->SetUserData(kBindingsSystemPerContextKey, std::move(data));
Loading diff…

Regression Test / PoC

shipped with the fix
diff --git a/extensions/renderer/bindings/api_binding_test.cc b/extensions/renderer/bindings/api_binding_test.cc
index fdba8570..deb0062 100644
--- a/extensions/renderer/bindings/api_binding_test.cc
+++ b/extensions/renderer/bindings/api_binding_test.cc
@@ -7,6 +7,7 @@
 #include <algorithm>
 
 #include "base/task/single_thread_task_runner.h"
+#include "extensions/renderer/bindings/api_binding_util.h"
 #include "gin/array_buffer.h"
 #include "gin/public/context_holder.h"
 #include "gin/public/isolate_holder.h"
@@ -44,6 +45,8 @@
   context->Enter();
   main_context_holder_ = std::make_unique<gin::ContextHolder>(isolate());
   main_context_holder_->SetContext(context);
+
+  binding::InitializeContext(context);
 }
 
 void APIBindingTest::TearDown() {
@@ -102,6 +105,7 @@
       v8::Context::New(isolate(), GetV8ExtensionConfiguration());
   holder->SetContext(context);
   additional_context_holders_.push_back(std::move(holder));
+  binding::InitializeContext(context);
   return context;
 }
Loading diff…

Original Bug Report

reported by vm...@gmail.com

use-after-poison in ContextInvalidationListener

Steps to reproduce the problem

  1. load extension poc.zip. (**disable –no-sandbox **; If it does not crash, try several times.)

Problem Description

In the process of UnloadExtension when extensions::APIBindingsSystem::WillReleaseContext(v8::Local<v8::Context>) triggers context invalidation. During context invalidation, a ContextInvalidationListener attempts to access its base::OnceClosure callback after the callback has already been destroyed, resulting in a use-after-poison error when checking the callback’s validity in OnInvalidated(). This indicates a lifetime management issue where the callback object is destroyed before its associated ContextInvalidationListener, possibly due to incorrect destruction ordering or missing cleanup mechanisms during context release.

1 2

fix: Ensure ContextInvalidationListener unregisters itself or uses weak pointers to handle callback invalidation safely.

Summary

use-after-poison in ContextInvalidationListener

Custom Questions

Crash state:

=================================================================
==3775476==ERROR: AddressSanitizer: use-after-poison on address 0x7eac00559a58 at pc 0x615e5703021b bp 0x7ffe2d0cbbb0 sp 0x7ffe2d0cbba8
READ of size 8 at 0x7eac00559a58 thread T0 (chrome)
    #0 0x615e5703021a in operator bool base/memory/scoped_refptr.h:319:43
    #1 0x615e5703021a in is_null base/functional/callback_internal.h:140:34
    #2 0x615e5703021a in operator bool base/functional/callback_internal.h:141:44
    #3 0x615e5703021a in operator bool base/functional/callback.h:110:45
    #4 0x615e5703021a in OnInvalidated extensions/renderer/bindings/api_binding_util.cc:167:3
    #5 0x615e5703021a in extensions::binding::ContextInvalidationData::Invalidate() extensions/renderer/bindings/api_binding_util.cc:84:14
    #6 0x615e57036bb7 in extensions::APIBindingsSystem::WillReleaseContext(v8::Local<v8::Context>) extensions/renderer/bindings/api_bindings_system.cc:159:3
    #7 0x615e57138587 in extensions::NativeExtensionBindingsSystem::WillReleaseScriptContext(extensions::ScriptContext*) extensions/renderer/native_extension_bindings_system.cc:525:15
    #8 0x615e570c3ebf in Invoke<void (extensions::NativeExtensionBindingsSystem::*)(extensions::ScriptContext *), extensions::NativeExtensionBindingsSystem *, extensions::ScriptContext *> base/functional/bind_internal.h:730:12
    #9 0x615e570c3ebf in MakeItSo<void (extensions::NativeExtensionBindingsSystem::*const &)(extensions::ScriptContext *), const std::__Cr::tuple<base::internal::UnretainedWrapper<extensions::NativeExtensionBindingsSystem, base::unretained_traits::MayNotDangle, (partition_alloc::internal::RawPtrTraits)0> > &, extensions::ScriptContext *> base/functional/bind_internal.h:922:12
    #10 0x615e570c3ebf in RunImpl<void (extensions::NativeExtensionBindingsSystem::*const &)(extensions::ScriptContext *), const std::__Cr::tuple<base::internal::UnretainedWrapper<extensions::NativeExtensionBindingsSystem, base::unretained_traits::MayNotDangle, (partition_alloc::internal::RawPtrTraits)0> > &, 0UL> base/functional/bind_internal.h:1059:14
    #11 0x615e570c3ebf in base::internal::Invoker<base::internal::FunctorTraits<void (extensions::NativeExtensionBindingsSystem::* const&)(extensions::ScriptContext*), extensions::NativeExtensionBindingsSystem*>, base::internal::BindState<true, true, false, void (extensions::NativeExtensionBindingsSystem::*)(extensions::ScriptContext*), base::internal::UnretainedWrapper<extensions::NativeExtensionBindingsSystem, base::unretained_traits::MayNotDangle, (partition_alloc::internal::RawPtrTraits)0>>, void (extensions::ScriptContext*)>::Run(base::internal::BindStateBase*, extensions::ScriptContext*) base/functional/bind_internal.h:979:12
    #12 0x615e57175949 in base::RepeatingCallback<void (extensions::ScriptContext*)>::Run(extensions::ScriptContext*) const & base/functional/callback.h:343:12
    #13 0x615e5717520b in ExecuteCallbackWithContext extensions/renderer/script_context_set.cc:202:14
    #14 0x615e5717520b in extensions::ScriptContextSet::ForEach(extensions::mojom::HostID const&, content::RenderFrame*, base::RepeatingCallback<void (extensions::ScriptContext*)> const&) extensions/renderer/script_context_set.cc:175:11
    #15 0x615e570b59a6 in extensions::Dispatcher::UnloadExtension(std::__Cr::basic_string<char, std::__Cr::char_traits<char>, std::__Cr::allocator<char>> const&) extensions/renderer/dispatcher.cc:1185:24
    #16 0x615e4e2f1377 in extensions::mojom::RendererStubDispatch::Accept(extensions::mojom::Renderer*, mojo::Message*) gen/extensions/common/mojom/renderer.mojom.cc:2779:13
    #17 0x615e58c0e8a2 in mojo::InterfaceEndpointClient::HandleValidatedMessage(mojo::Message*) mojo/public/cpp/bindings/lib/interface_endpoint_client.cc:1059:54
    #18 0x615e58c38fbb in mojo::MessageDispatcher::Accept(mojo::Message*) mojo/public/cpp/bindings/lib/message_dispatcher.cc:43:19
    #19 0x615e58c15d88 in mojo::InterfaceEndpointClient::HandleIncomingMessage(mojo::Message*) mojo/public/cpp/bindings/lib/interface_endpoint_client.cc:731:20
    #20 0x615e5db96a4f in IPC::ChannelAssociatedGroupController::AcceptOnEndpointThread(mojo::Message, IPC::(anonymous namespace)::ScopedUrgentMessageNotification) ipc/ipc_mojo_bootstrap.cc:1202:24
    #21 0x615e5db9978c in Invoke<void (IPC::ChannelAssociatedGroupController::*)(mojo::Message, IPC::(anonymous namespace)::ScopedUrgentMessageNotification), scoped_refptr<IPC::ChannelAssociatedGroupController>, mojo::Message, IPC::(anonymous namespace)::ScopedUrgentMessageNotification> base/functional/bind_internal.h:730:12
    #22 0x615e5db9978c in MakeItSo<void (IPC::ChannelAssociatedGroupController::*)(mojo::Message, IPC::(anonymous namespace)::ScopedUrgentMessageNotification), std::__Cr::tuple<scoped_refptr<IPC::ChannelAssociatedGroupController>, mojo::Message, IPC::(anonymous namespace)::ScopedUrgentMessageNotification> > base/functional/bind_internal.h:922:12
    #23 0x615e5db9978c in RunImpl<void (IPC::ChannelAssociatedGroupController::*)(mojo::Message, IPC::(anonymous namespace)::ScopedUrgentMessageNotification), std::__Cr::tuple<scoped_refptr<IPC::ChannelAssociatedGroupController>, mojo::Message, IPC::(anonymous namespace)::ScopedUrgentMessageNotification>, 0UL, 1UL, 2UL> base/functional/bind_internal.h:1059:14
    #24 0x615e5db9978c in base::internal::Invoker<base::internal::FunctorTraits<void (IPC::ChannelAssociatedGroupController::*&&)(mojo::Message, IPC::(anonymous namespace)::ScopedUrgentMessageNotification), IPC::ChannelAssociatedGroupController*&&, mojo::Message&&, IPC::(anonymous namespace)::ScopedUrgentMessageNotification&&>, base::internal::BindState<true, true, false, void (IPC::ChannelAssociatedGroupController::*)(mojo::Message, IPC::(anonymous namespace)::ScopedUrgentMessageNotification), scoped_refptr<IPC::ChannelAssociatedGroupController>, mojo::Message, IPC::(anonymous namespace)::ScopedUrgentMessageNotification>, void ()>::RunOnce(base::internal::BindStateBase*) base/functional/bind_internal.h:972:12
    #25 0x615e3a86dbe9 in base::OnceCallback<void ()>::Run() && base/functional/callback.h:155:12
    #26 0x615e58f1a527 in base::TaskAnnotator::RunTaskImpl(base::PendingTask&) base/task/common/task_annotator.cc:207:34
    #27 0x615e58fd8838 in RunTask<(lambda at ../../base/task/sequence_manager/thread_controller_with_message_pump_impl.cc:474:11)> base/task/common/task_annotator.h:104:5
    #28 0x615e58fd8838 in base::sequence_manager::internal::ThreadControllerWithMessagePumpImpl::DoWorkImpl(base::LazyNow*) base/task/sequence_manager/thread_controller_with_message_pump_impl.cc:472:23
    #29 0x615e58fd6756 in base::sequence_manager::internal::ThreadControllerWithMessagePumpImpl::DoWork() base/task/sequence_manager/thread_controller_with_message_pump_impl.cc:346:40
    #30 0x615e58fd978a in non-virtual thunk to base::sequence_manager::internal::ThreadControllerWithMessagePumpImpl::DoWork() base/task/sequence_manager/thread_controller_with_message_pump_impl.cc
    #31 0x615e58d60e8b in base::MessagePumpDefault::Run(base::MessagePump::Delegate*) base/message_loop/message_pump_default.cc:42:55
    #32 0x615e58fdacad in base::sequence_manager::internal::ThreadControllerWithMessagePumpImpl::Run(bool, base::TimeDelta) base/task/sequence_manager/thread_controller_with_message_pump_impl.cc:647:12
    #33 0x615e58e61f2b in base::RunLoop::Run(base::Location const&) base/run_loop.cc:134:14
    #34 0x615e676787af in content::RendererMain(content::MainFunctionParams) content/renderer/renderer_main.cc:355:16
    #35 0x615e540becda in content::RunZygote(content::ContentMainDelegate*) content/app/content_main_runner_impl.cc:669:14
    #36 0x615e540c0e4d in content::RunOtherNamedProcessTypeMain(std::__Cr::basic_string<char, std::__Cr::char_traits<char>, std::__Cr::allocator<char>> const&, content::MainFunctionParams, content::ContentMainDelegate*) content/app/content_main_runner_impl.cc:772:12
    #37 0x615e540c468b in content::ContentMainRunnerImpl::Run() content/app/content_main_runner_impl.cc:1129:10
    #38 0x615e540bc3a4 in content::RunContentProcess(content::ContentMainParams, content::ContentMainRunner*) content/app/content_main.cc:346:36
    #39 0x615e540bc93c in content::ContentMain(content::ContentMainParams) content/app/content_main.cc:359:10
    #40 0x615e3a157258 in ChromeMain chrome/app/chrome_main.cc:228:12
    #41 0x704becc2a1c9 in __libc_start_call_main csu/../sysdeps/nptl/libc_start_call_main.h:58:16
    #42 0x704becc2a28a in __libc_start_main csu/../csu/libc-start.c:360:3
    #43 0x615e3a07a029 in _start (/home/xx/xx/src/chrome/chromium/src/out/asan/chrome+0x27d2d029) (BuildId: 2120e3b077da9166)

Address 0x7eac00559a58 is a wild pointer inside of access range of size 0x000000000008.
SUMMARY: AddressSanitizer: use-after-poison base/memory/scoped_refptr.h:319:43 in operator bool
Shadow bytes around the buggy address:
  0x7eac00559780: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
  0x7eac00559800: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
  0x7eac00559880: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
  0x7eac00559900: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
  0x7eac00559980: 00 00 00 00 00 00 00 00 00 00 00 00 00 f7 f7 f7
=>0x7eac00559a00: f7 f7 f7 f7 f7 f7 f7 f7 f7 f7 f7[f7]f7 f7 f7 f7
  0x7eac00559a80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
  0x7eac00559b00: 00 00 00 00 f7 f7 f7 f7 f7 f7 f7 f7 f7 f7 f7 f7
  0x7eac00559b80: f7 f7 f7 f7 f7 f7 f7 f7 f7 f7 f7 f7 f7 f7 f7 f7
  0x7eac00559c00: f7 f7 f7 f7 f7 f7 00 00 00 00 00 00 00 00 00 00
  0x7eac00559c80: 00 00 00 00 00 00 00 00 00 00 f7 f7 f7 f7 f7 f7
Shadow byte legend (one shadow byte represents 8 application bytes):
  Addressable:           00
  Partially addressable: 01 02 03 04 05 06 07 
  Heap left redzone:       fa
  Freed heap region:       fd
  Stack left redzone:      f1
  Stack mid redzone:       f2
  Stack right redzone:     f3
  Stack after return:      f5
  Stack use after scope:   f8
  Global redzone:          f9
  Global init order:       f6
  Poisoned by user:        f7
  Container overflow:      fc
  Array cookie:            ac
  Intra object redzone:    bb
  ASan internal:           fe
  Left alloca redzone:     ca
  Right alloca redzone:    cb

NOTE: the stack trace above identifies the code that *accessed* the poisoned memory.
To identify the code that *poisoned* the memory, try the experimental setting ASAN_OPTIONS=poison_history_size=<size>.

==3775476==ADDITIONAL INFO

==3775476==Note: Please include this section with the ASan report.
Task trace:
    #0 0x615e5db8084c in IPC::ChannelAssociatedGroupController::Accept(mojo::Message*) ipc/ipc_mojo_bootstrap.cc:1141:13

Additional Data

Category: Security
Chrome Channel: Not sure
Regression: N/A \

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