Reading privileged memory with a side-channel
We have discovered that CPU data cache timing can be abused to efficiently leak information out of mis-speculated execution, leading to (at worst) arbitrary virtual memory read vulnerabilities across local security boundaries in various contexts. Variants of this issue are known to affect many modern processors, including certain processors by Intel, AMD and ARM. For a few Intel and AMD CPU models
V8 javascript engine for フロントエンドデベロッパー
V8 is Google's open source JavaScript engine that is used in Chrome and Node.js. It uses several optimization techniques like hidden classes, inline caching, and TurboFan to improve JavaScript performance. V8 first parses JavaScript into an AST, then compiles it into bytecode which is executed by the Ignition bytecode interpreter or optimized by TurboFan into machine code using techniques like hid
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