I’d have to dig it, but I think it said that it added the PID and the uninitialized memory to add a bit more data to the entropy pool in a cheap way. I honestly don’t get how that additional data can be helpful. To me it’s the very opposite. The PID and the undefined memory are not as good quality as good randomness. So, even without Debian’s intervention, it was a bad idea. The undefined memory triggered valgrind, and after Debian’s patch, if it weren’t because of the PID, all keys would have been reduced to 0 randomness, which would have probably raised the alarm much sooner.
I have to admit that I never understood the need for bashrc and bash_profile. I hated that with a passion when I started to set up my bash configuration. I never saw the need to have so many files and so much complication to have a consistent shell whenever I logged in the console or spawned a konsole in KDE.
The paths shown on that diagram are 7 for bash, and 4 for zsh, so it’s surely an improvement. However, now that I have set it all on a git repository, I don’t see it as a big deal. I have a profile that sources bashrc, and then I do it all in bashrc. I’ve checked /etc/skel and it seems the distro does roughly the same (and I’ve never switched away from Debian or Debian-based in 20 years). I’m not sure if it’s such a big deal. But I’m still curious about trying zsh some day. :)
Thanks for the blog post. I’ll check it out.