qt6-webengine/CVE-2022-1096-qtwebengine-6.2.patch

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From: Allan Sandfeld Jensen <allan.jensen@qt.io>
Date: Tue, 29 Mar 2022 17:31:58 +0200
Subject: [Backport] CVE-2022-1096
[runtime] Fix handling of interceptors
--- a/src/3rdparty/chromium/v8/src/objects/objects.cc
+++ b/src/3rdparty/chromium/v8/src/objects/objects.cc
@@ -2513,6 +2513,12 @@ Maybe<bool> Object::SetPropertyInternal(LookupIterator* it,
Maybe<bool> result =
JSObject::SetPropertyWithInterceptor(it, should_throw, value);
if (result.IsNothing() || result.FromJust()) return result;
+ // Assuming that the callback have side effects, we use
+ // Object::SetSuperProperty() which works properly regardless on
+ // whether the property was present on the receiver or not when
+ // storing to the receiver.
+ // Proceed lookup from the next state.
+ it->Next();
} else {
Maybe<PropertyAttributes> maybe_attributes =
JSObject::GetPropertyAttributesWithInterceptor(it);
@@ -2533,10 +2539,8 @@ Maybe<bool> Object::SetPropertyInternal(LookupIterator* it,
// property to the receiver.
it->NotFound();
}
- return Object::SetSuperProperty(it, value, store_origin,
- should_throw);
}
- break;
+ return Object::SetSuperProperty(it, value, store_origin, should_throw);
}
case LookupIterator::ACCESSOR: {