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A comment on Inception – Break and Enter Using Direct Memory Access.

Re:Inception – Break and Enter Using Direct Memory Access by pgeorgi on Monday February 23, 2015 @07:59AM (#9093999)
I was thinking that the Physical Upper Bound Register (ohci_11.pdf, 5.1.5) should protect against that (at least where implemented, since it's "optional").

But it seems that even linux set this registers to allow pretty much everything (writes to OHCI1394_PhyUpperBound in src/drivers/firmware/*.c)

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