Given how few userspace programs actually use vmsplice, is it safe to say that the largest
user of this system call is the exploit? (Some quick google and koders searching implies
this; please tell me if my impression is wrong.)
I'm curious why nobody has been talking about purging this demonstrably scary call from the
kernel. Why not redesign it so this sort of mistake will be easier to find in the future?
Ultimately, I guess here's my question: is there any quantifiable reason to believe the
current fix isn't a premature botch the way the previous fixes were?