god now reading this shit from lwn https://lwn.net/Articles/828705/
That said, nobody felt the need to defend the simple PRNG that underlies
prandom_u32()now; the door is clearly open to replacing it outright if a suitable alternative can be found. That alternative would have to be something that does not make guessing its internal state so easy, but it would also have to retain the performance characteristics of the current implementation. Torvalds has proclaimed that he will not accept a replacement that slows things down.
backdoorOS
Meanwhile, Ted Ts'o, the maintainer of the kernel's random-number generator,
words you want to hear about your kernel