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Comment by rep_lodsb

4 days ago

As long as it's a linear address space, adding/subtracting a large enough value to a pointer (array, stack) could still cross into another "segment".

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rep_lodsb

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convolvatron  4 days ago

but those wouldn't be mapped unless you have crossed a call gate that enabled them. the kernel call gate implementation changes the VM map (region visibility) accordingly

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