On 04/05/2013 03:06 PM, Julien Tinnes wrote: > > Speaking of IDT, and to capture some off-thread discussion here, we > should remember that the "SGDT" and "SIDT" instructions aren't > privileged on x86, so user-land can leak these out without any way for > the kernel to intercept that. > > Adding their own random offsets to these two tables would be very > useful. This could be done in a later patchset of course. >
Yes, if the GDT or IDT position is at all correlated to the kernel position this is pointless. -hpa -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/