3 ms·

The designers of the firmware anticipate this attack but punt it to the vendor, apparently: // // Platform implementor should choose a timeout value ap

The designers of the firmware anticipate this attack but punt it to the vendor, apparently: // // Platform implementor should choose a timeout value appropriately: [snip] // - The timeout value must be longer than longest possible IO operation in the system

wtallis 2mo ago
I wonder whether a Thunderbolt accessory can cause arbitrarily long IO operations. What's the upper bound before some other layer gives up and causes the instruction to fault?
- M95D 2mo ago
  No need. Thunderbolt is usually susceptible to DMA attacks.