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How OS detects memory access violations

Fresh3 days ago
Mar 15, 20267929 views
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Problem

How does an operating system (preferably Linux) know that you've accessed a memory location that you're not allowed to? This question was inspired by those damn pointers! The way I see it is: everything in computers is about a compromise between speed, security, integrity, and such things. I'm well…

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Fix for: How OS detects memory access violations

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(The following answer assumes a “modern” desktop, server, or upper-end embedded platform (such as smartphones, and more and more smaller systems as well). For x86 systems, modern means 386 and up. The following answer also assumes a “modern” OS, suc…

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