LibJS: Add a missing exception check in Object.assign()

Author: https://github.com/linusg Commit: https://github.com/SerenityOS/serenity/commit/34c28b981af Pull-request: https://github.com/SerenityOS/serenity/pull/8463 Reviewed-by: https://github.com/IdanHo ✅
2021-07-05 17:20:50 +01:00 · 2021-07-05 17:20:50 +01:00 · 34c28b981a · 2024-07-18 10:22:13 +09:00
commit 34c28b981a
parent 2e94fa25d0
1 changed files with 2 additions and 0 deletions
--- a/Userland/Libraries/LibJS/Runtime/ObjectConstructor.cpp
+++ b/Userland/Libraries/LibJS/Runtime/ObjectConstructor.cpp
@ -458,6 +458,8 @@ JS_DEFINE_NATIVE_FUNCTION(ObjectConstructor::assign)

            // 1. Let desc be ? from.[[GetOwnProperty]](nextKey).
            auto desc = from->internal_get_own_property(property_name);
+            if (vm.exception())
+                return {};

            // 2. If desc is not undefined and desc.[[Enumerable]] is true, then
            if (!desc.has_value() || !*desc->enumerable)