I wish Linux/etc had a mount option and/or superblock flag called “allow only sane file names”. And if you had that set, then attempting to create a file whose

I wish Linux/etc had a mount option and/or superblock flag called “allow only sane file names”. And if you had that set, then attempting to create a file whose name wasn’t valid UTF-8, or which contained C0 or C1 controls, would fail. The small minority of people who really need pre-Unicode encodings such as ISO 2022 could just not turn that option on. And the majority who don’t need anything like that could reap the benefits of eliminating a whole category of potential bugs and vulnerabilities.