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My DFIR Blog
Personal blog · dfir.rusecurityprogramming
My DFIR Blog is a personal blog at dfir.ru about security and programming. Since 2021, 3 different Hacker News readers have linked it 3 times, most often “CVE-2023-4273: a vulnerability in the Linux exFAT driver”. It is still writing: the last post was on 2026-09-09, and you can follow it by feed.
Too few sampled comments (1) to say how often HN recommends it.?
Why HN links it
HN readers link this blog's notes on case-insensitive file systems, such as the 2021 post on case-folding maps in NTFS, exFAT and ext4. One commenter cites it as a source for how these file systems handle case folding.
Summarised by Claude from a sample of 1 HN comments that link here. Each comment is marked recommending, critical or neutral (citing without judging); how this works.
Digital Forensics & Incident Response & Reverse Engineering & Vulnerability Research
Most-linked posts?
- CVE-2023-4273: a vulnerability in the Linux exFAT driver2 people · 2 mentions · first linked 2023-08-23
What Hacker News says?
> Makes me wonder how case insensitive file systems handle this... They generally don't. It is true that several case-insensitive file systems (including NTFS, exFAT and ext4 [1]) maintain some sort of configurable case-folding maps but they are mostly used to guard against the future Unicode update and do not vary across locales. [1] https://dfir.ru/2021/07/15/playing-with-case-insensitive-fil... (ext4 supports an…
Comment linking /2021/07/15/playing-with-case-insensitive-file-names/
on “TIL the assumption that string length does not change when upper-cased is false”Submitted CVE-2023-4273: a vulnerability in the Linux exFAT driver as a story · 2 points
HN discussionSubmitted CVE-2023-4273: a vulnerability in the Linux exFAT driver as a story · 1 points
HN discussion