[ta988]

My understanding here is that it only impacts Redhat (and maybe derivatives)?

[stncls]

Yes, only RHEL 9 (the current version of RHEL) and its upstreams/downstreams (CentOS Stream 9, Rocky Linux 9, Alma Linux 9,...).

Also affected: Fedora 37, 36 and possibly 35, which are all end-of-life (since December 2023 in the case of Fedora 37).

Not affected: Fedora 38 (also EOL), 39 (maintained) and 40 (current).