This blog post is about how I found a bug in a custom implementation of a hash table that is part of a important Linux tool called kmod. The bug is subtle and unfortunately symptomatic for coding in C.

There's a TL;DR at the end if you're not interested …

I'm transitioning GPG keys from an old 2048-bit RSA key without an expiration date to a new 4096-bit RSA key with an expiration date set:

-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA256

I am transitioning GPG keys from an old 2048-bit RSA key to a new
4096-bit RSA key.  The old …

"There are basically a zillion (technical) blogs out there. Why does the world need another one?", one might ask. The answer is Not invented here sometimes yields to temptation to do something that has been done a zillion times before:

Not invented here (NIH) is the philosophy of social, corporate …