Kernelcare - Unknown Kernel

[mcoyles]

It is not on the list of supported kernels, unless you are very slow in updating the lists
We get this every time there is a kernel update & kernelcare is 3 or 4 days or even 1 week late in adding it after Cpanel does an auto-update & forces you to reboot
Unknown Kernel (CentOS 2.6.32-696.20.1.el6.x86_64)

http://patches.kernelcare.com/

Shows most recent version as
kernel-2.6.32-696.18.7.el6(Last Updated: 2018-01-10 13:37:30)

[mcoyles]

Any ideas when kernelcare will update to
root [/]# /usr/bin/kcarectl --update
Unknown Kernel (CentOS 2.6.32-696.20.1.el6.x86_64)
root [/]# _

[mcoyles]

Excellent - thanks Alexandre...

[apb]

New kernels are usually added to the list of supported by KernelCare within a few days. This error will disappear since then, so no additional actions are required from customers side.

[mcoyles]

Also getting Unknown kernel for CentOS6.9 latest... on the free patch type (for symlink protection).

# kcarectl --set-patch-type free --update
Unknown Kernel (CentOS 2.6.32-696.18.7.el6.x86_64)

# kcarectl --check
Unknown kernel (CentOS 2.6.32-696.18.7.el6.x86_64), no patches available

# kcarectl --version
2.14-2

# uname -r
2.6.32-696.18.7.el6.x86_64

# kcare-uname -r
2.6.32-696.18.7.el6.x86_64.x86_64

(Following guidance at https://documentation.cpanel.net/dis...ion+Protection for rolling back from their now-discontinued hardened kernel and https://www.cloudlinux.com/kernelcar...lcare?start=20)

[iseletsk]

Why: Details are here: https://www.cloudlinux.com/cloudlinu...and-cloudlinux

We are the only vendor who is even trying to get the patch. Everyone else gave up even before they started due to how massive change is, and how hard it is to apply to the running kernel.

[iseletsk]

Now getting Unknown Kernel (CentOS 2.6.32-696.18.7.el6.x86_64)
/usr/bin/kcarectl --auto-update --gradual-rollout=auto

why is cloudlinux so slow on updating kernel care to fix these new bugs

[iseletsk]

I am also getting the following message

/usr/bin/kcarectl --update
Unknown Kernel (CloudLinux 3.10.0-714.10.2.lve1.5.3.el7.x86_64)

[iseletsk]

No, the new kernel will be supported in a few days. Overall, it is not worth it to update to a new kernel if you have KC. All critical security vulnerabilities are fixed in advance, so you do a reboot for nothing.

[jay6007]

Thanks for the info, Igor, but I am confused. The main issue for now is getting the "Extra" patch installed when the kernel is unrecognized. Are you saying it will be 2-4 weeks before we can expect a way to do so?

[iseletsk]

This kcare-uname -r issue is something we are aware of -- and will be fixing soon (2-4 weeks).

The issue with security advisor is that it doesnt know about extra/free patches and that it fixes symlink issue. cPanel team is aware of it, and is working on it as well. We got very early / approximate ETA of 2-3 months from now for the fix in security advisor.

[jay6007]

After the cPanel 66.0.29 update installed last night, I began seeing the Security Advisor warning that I had no symlink race condition protection, and began investigating because I had successfully installed the "Extra" patchset for version 66.0.26. Im getting the same error about the "Unknown kernel" as Derek. When I try to run the command:

kcarectl --patch-info

I get:

Unknown kernel (CentOS 2.6.32-696.13.2.el6.x86_64), no patches available

Im not sure, but I think the problem may be that Kernelcare is misidentifying the kernel. Take a look at what uname and kcare-uname output:

[root@host ~]# uname -r

2.6.32-696.13.2.el6.x86_64

[root@host ~]# kcare-uname -r

2.6.32-696.13.2.el6.x86_64.x86_64

Kcare-uname has an extra ".x86_64" tacked on the end of the kernel name. That cant be good.

Is there any fix for this yet?

[sqh]

I have just purchased kernel care via cpanel and it appears to have installed correctly. however I get this message when trying to install extra patches as shown in this post https://www.cloudlinux.com/imunify36...-now-available

root [/]# kcarectl --set-patch-type extra --update
Unknown Kernel (CentOS 2.6.32-696.13.2.el6.x86_64)
root [/]# _

Why am I paying for something that doesnt work.

[sqh]

Did you ever get a resolution on this? We are seeing the same thing today, for kernel CentOS 2.6.32-696.10.3.el6.x86_64

- Scott

[scott]

Noticing this now with CentOS kernel 2.6.32-642.el6, which is weird because the kernelcare kernel is using this version

# uname -r
2.6.32-642.el6.x86_64
# kcarectl --check
Unknown Kernel (CentOS 2.6.32-642.el6.x86_64)
# kcare-uname -r
2.6.32-642.el6.x86_64
Also getting an unknown kernel for the latest OpenVZ RHEL6 kernel - 042stab116.1.

# uname -r
2.6.32-042stab116.1
# kcarectl --check
Unknown Kernel (CentOS 2.6.32-042stab116.1)
# kcare-uname -r
2.6.32-042stab116.1