Ingo, always the one to come up with the contrived examples to save face.
First, tell me how long that config option has been in the kernel. Then, please tell me, for how long has that feature you mention actually worked? (This part might be difficult to figure out because no one at your company bothered to make sure it actually worked after they threw the code in the kernel). Also please tell me how many distro configurations actually use it. My videos should give you a hint.
PS: didn't a whole ton of stack infoleaks just get fixed? And isn't that cookie per-process (allowing me to perform repeated infoleaks in the same process as my exploit to determine the stack cookie)? I'm sure after finding a dozen of those in the past month, there aren't any more laying around to exploit. Oh, right.