As this was a linux kernal subsystem "netfilter subsystem of the Linux kernel" then I would presume not, and any kernel with the impacted subsystem present and equally exposed would be equally at risk.
A bit like finding a flaw in a steering wheel used in a particular model of car when other car makes use that same steering wheel, yet were not tested in the findings.
> A bit like finding a flaw in a steering wheel used in a particular model of car when other car makes use that same steering wheel, yet were not tested in the findings.
A bit like finding a flaw in a steering wheel used in a particular model of car when other car makes use that same steering wheel, yet were not tested in the findings.
At least that is my interpretation of all this.