this post was submitted on 04 Oct 2023
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Linux is a family of open source Unix-like operating systems based on the Linux kernel, an operating system kernel first released on September 17, 1991 by Linus Torvalds. Linux is typically packaged in a Linux distribution (or distro for short).
Distributions include the Linux kernel and supporting system software and libraries, many of which are provided by the GNU Project. Many Linux distributions use the word "Linux" in their name, but the Free Software Foundation uses the name GNU/Linux to emphasize the importance of GNU software, causing some controversy.
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An interesting fact about the affected versions: It was introduced in 2.34, so there was a comment on hackernews that Red Hat 8 isn't affected because it ships with an earlier version. However, from Red Hat's customer Portal:
So just checking version numbers for vulnerabilities isn't really enough. I had a similar discussion at work lately where a CVE fix was listed in a stable kernel's changelog even though going by the vulnerable versions listed in the CVE itself, that kernel wasn't affected.
So if RHEL is affected, it means Rocky and AlmaLinux is too.