> When a new hardware RNG is registered by the kernel, it is used right away to add entropy to the system.

If I understand correctly, the new hwrng will be used immediately if there's no current active hwnrg or if the new hwrng quality is greater than the current active one and no userspace hwrng was set [0].

Also the "it is used right away" link is pointing to [1], but I'm wondering if it should not be pointing to [2] instead?

- [0] https://elixir.bootlin.com/linux/v6.11/source/drivers/char/h...

- [1] https://elixir.bootlin.com/linux/v6.11/source/drivers/char/h...

- [2] https://elixir.bootlin.com/linux/v6.11/source/drivers/char/h...

This seems to be a sensationalized statement. Apart from "trusting a black box" they didn't actually indicate an actual weakness, stating side-channel attacks as the obvious attack vector.