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lostmsu 2 hours ago

This argument makes no sense. Data coming to your network adapter is also "stitched together and fed".

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solid_fuel an hour ago | parent [-]

> This argument makes no sense. Data coming to your network adapter is also "stitched together and fed".

Try reading it from start to end, it will make more sense if you think about it.

By the way, if your OS is taking untrusted data from the network, inserting it into an executable code page, and loading it into the CPU then you have some SERIOUS security issues.

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anuramat 24 minutes ago | parent [-]

but it's all just bytes?

	▲	solid_fuel 14 minutes ago \| parent [-]
		It's all bytes but untrusted user data is stored in memory pages which are not marked executable. The CPU physically will not run instructions which are in areas of memory which are not marked as executable. This is a foundational principal of computing security. > In computer security, executable-space protection marks memory regions as non-executable, such that an attempt to execute machine code in these regions will cause an exception. It relies on hardware features such as the NX bit (no-execute bit), or on software emulation when hardware support is unavailable. Software emulation often introduces a performance cost, or overhead (extra processing time or resources), while hardware-based NX bit implementations have no measurable performance impact. https://en.wikipedia.org/wiki/Executable-space_protection