The kernel policy is that any distro that isn't using a rolling release kernel is unpatched and vulnerable, so "reasonably up-to-date" is going to lean heavily on what you consider "reasonable".
LPEs abound - unprivileged user ns was a whole gateway that was closed, io-uring was hot for a while, ebpf is another great target, and I'm sure more and more will be found every year as has been the case. Seccomp and unprivileged containers etc make a huge different to stomp out a lot of the attack surface, you can decide how comfortable you are with that though.
>The kernel policy is that any distro that isn't using a rolling release kernel is unpatched and vulnerable, so "reasonably up-to-date" is going to lean heavily on what you consider "reasonable".
I would expect major distributions to have embargoed CVE access specifically to prevent this issue.
Nope, that is not the case. For one thing, upstream doesn't issue CVEs and doesn't really care about CVEs or consider them valid. For another, they forbid or severely limit embargos.
LPEs abound - unprivileged user ns was a whole gateway that was closed, io-uring was hot for a while, ebpf is another great target, and I'm sure more and more will be found every year as has been the case. Seccomp and unprivileged containers etc make a huge different to stomp out a lot of the attack surface, you can decide how comfortable you are with that though.