class PasswordHash gives file access error when creating Network

[automaton]

The error occurs in line 58:

if (is_readable('/dev/urandom') &&
		    ($fh = @fopen('/dev/urandom', 'rb'))) {
			$output = fread($fh, $count);
			fclose($fh);
		}

Could be a symbolic link issue.

[sivel]

See #12148

I'm thinking we can close this as a duplicate. But for the time being I am keeping it open.