From: Andy Lutomirski > Sent: 08 December 2017 16:48 ... > I mean: if the user CS or SS is not accessed and the LDT is RO, then > we get #PF on the IRET instruction, I think. Dealing with that is > truly awful.
Any fault in-kernel on the IRET is horrid.
Doesn't really matter which one.
Same goes for the 'pop %ds' (etc) that tend to precede it.
David
