> @@ -1826,7 +1830,9 @@ _random_read(int nonblock, char __user *buf, size_t
> nbytes)
>
> nbytes = min_t(size_t, nbytes, SEC_XFER_SIZE);
> while (1) {
> - n = extract_entropy_user(&blocking_pool, buf, nbytes);
> + n = input_pool.initialized
> +
Reading from /dev/random may return data while the getrandom
syscall is still blocking.
Those bytes are not yet cryptographically secure.
The first byte from /dev/random can have as little
as 8 bits entropy estimation. Once a read blocks, it will
block until /proc/sys/kernel/random/read_wakeup_t
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