From 5c8cb1689a543955cd1a47d3c323f8710b8b0f15 Mon Sep 17 00:00:00 2001
From: ishell <ishell@chromium.org>
Date: Mon, 25 Jul 2016 05:30:45 -0700
Subject: [PATCH] [ic] Don't call LookupIterator::GetStoreTarget() when
 receiver is not a JSReceiver.

BUG=chromium:619166,chromium:625155

Review-Url: https://codereview.chromium.org/2175273002
Cr-Commit-Position: refs/heads/master@{#38018}
---
 src/lookup.h                         |  1 +
 src/objects.cc                       | 12 ++++++++----
 test/cctest/test-api-interceptors.cc | 19 +++++++++++++++++++
 3 files changed, 28 insertions(+), 4 deletions(-)

diff --git a/src/lookup.h b/src/lookup.h
index a1e39599cc..ffc7904b2a 100644
--- a/src/lookup.h
+++ b/src/lookup.h
@@ -176,6 +176,7 @@ class LookupIterator final BASE_EMBEDDED {
   Handle<Object> GetReceiver() const { return receiver_; }
 
   Handle<JSObject> GetStoreTarget() const {
+    DCHECK(receiver_->IsJSObject());
     if (receiver_->IsJSGlobalProxy()) {
       Map* map = JSGlobalProxy::cast(*receiver_)->map();
       if (map->has_hidden_prototype()) {
diff --git a/src/objects.cc b/src/objects.cc
index 45bdb1dc9f..386cd98498 100644
--- a/src/objects.cc
+++ b/src/objects.cc
@@ -4374,15 +4374,18 @@ Maybe<bool> Object::SetPropertyInternal(LookupIterator* it,
                                     value, it->GetReceiver(), language_mode);
 
       case LookupIterator::INTERCEPTOR: {
-        Handle<Map> store_target_map =
-            handle(it->GetStoreTarget()->map(), it->isolate());
+        Handle<Map> store_target_map;
+        if (it->GetReceiver()->IsJSObject()) {
+          store_target_map = handle(it->GetStoreTarget()->map(), it->isolate());
+        }
         if (it->HolderIsReceiverOrHiddenPrototype()) {
           Maybe<bool> result =
               JSObject::SetPropertyWithInterceptor(it, should_throw, value);
           if (result.IsNothing() || result.FromJust()) return result;
           // Interceptor modified the store target but failed to set the
           // property.
-          Utils::ApiCheck(*store_target_map == it->GetStoreTarget()->map(),
+          Utils::ApiCheck(store_target_map.is_null() ||
+                              *store_target_map == it->GetStoreTarget()->map(),
                           it->IsElement() ? "v8::IndexedPropertySetterCallback"
                                           : "v8::NamedPropertySetterCallback",
                           "Interceptor silently changed store target.");
@@ -4395,7 +4398,8 @@ Maybe<bool> Object::SetPropertyInternal(LookupIterator* it,
           }
           // Interceptor modified the store target but failed to set the
           // property.
-          Utils::ApiCheck(*store_target_map == it->GetStoreTarget()->map(),
+          Utils::ApiCheck(store_target_map.is_null() ||
+                              *store_target_map == it->GetStoreTarget()->map(),
                           it->IsElement() ? "v8::IndexedPropertySetterCallback"
                                           : "v8::NamedPropertySetterCallback",
                           "Interceptor silently changed store target.");
diff --git a/test/cctest/test-api-interceptors.cc b/test/cctest/test-api-interceptors.cc
index 1108c87859..3e2d8dc5be 100644
--- a/test/cctest/test-api-interceptors.cc
+++ b/test/cctest/test-api-interceptors.cc
@@ -3292,6 +3292,25 @@ THREADED_TEST(Regress149912) {
   CompileRun("Number.prototype.__proto__ = new Bug; var x = 0; x.foo();");
 }
 
+THREADED_TEST(Regress625155) {
+  LocalContext context;
+  v8::HandleScope scope(context->GetIsolate());
+  Local<FunctionTemplate> templ = FunctionTemplate::New(context->GetIsolate());
+  AddInterceptor(templ, EmptyInterceptorGetter, EmptyInterceptorSetter);
+  context->Global()
+      ->Set(context.local(), v8_str("Bug"),
+            templ->GetFunction(context.local()).ToLocalChecked())
+      .FromJust();
+  CompileRun(
+      "Number.prototype.__proto__ = new Bug;"
+      "var x;"
+      "x = 0xdead;"
+      "x.boom = 0;"
+      "x = 's';"
+      "x.boom = 0;"
+      "x = 1.5;"
+      "x.boom = 0;");
+}
 
 THREADED_TEST(Regress125988) {
   v8::HandleScope scope(CcTest::isolate());