Linux RNG flaws (fixed)

[bsr]

See:

https://bugs.chromium.org/p/project-zero/issues/detail?id=1559

It is my understanding that this has been fixed, with the exception of some boot hangs depending on hardware and distribution.  This is due to some userspace applications assuming they can get cryptographic randomness early in the startup process, but the patched kernel now causes them to block, in some cases hanging the system.