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The linked article has been slashdotted, but does anyone know if the security implications are as horrible as I think they are? (Crossing process-kernel boundar
by JoachimSchipper 16y ago
The linked article has been slashdotted, but does anyone know if the security implications are as horrible as I think they are? (Crossing process-kernel boundaries, crossing VM boundaries, ...)
- agl 16y agoI haven't been able to read the article either but, from teasing apart the /. comments, it appears that they are extensions to the normal debugging support and aren't an immediate cause for concern. (If it's just a way to trigger a breakpoint based on the contents of a write, then that's only a subset of the documented capability.)
- tptacek 16y agoAlmost certainly not; the features are modeled after the DRx hardware debug registers. You can't access them from userland, and the debug registers are already virtualized.
- mfukar 16y agoProbably not, although I couldn't tell for sure at this moment. It's certainly a lot cooler debugging feature in relation to Intel chips.