Yep, and on top of that, you're using the Proxmox kernel here. So you simply have to use the versions supported by Proxmox. Unless you want to become a kernel maintainer and backport fixes to your own kernel yourself. But at that point, you won’t have any support from Proxmox, and you probably can’t be sure that you won’t end up causing yourself many more problems than could happen in the absolute worst-case scenario from a Proxmox kernel update.
So, in practice, if you want to use Proxmox and stay as secure as possible, you have no choice but to run a supported and patched version of Proxmox, which includes a patched version of the supported Proxmox kernels for that particular version of Proxmox.
So, in practice, if you want to use Proxmox and stay as secure as possible, you have no choice but to run a supported and patched version of Proxmox, which includes a patched version of the supported Proxmox kernels for that particular version of Proxmox.
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