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by contrarian_
3077 days ago
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The toy example referenced in section 6.4 is actually closer to Spectre. It's missing the crucial distinction that the speculatively loaded address should belong to a page inaccessible from the current ring level. To see why that toy example is insufficient, consider that you could simply execute the load directly without putting an exception in front of it and you would be able to read the value. |
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