Best practice to upgrade kernel

[Valdis Kl=?utf-8?Q?=c4=93?=tnieks]

On Fri, 26 Apr 2019 11:17:24 -0700, Xiaolong Wang said:

> I have a newbie question. I’m using a 3.18.66 kernel branch from Qualcomm.
> Over the year I’ve applied some of patched here and there manually.

> But It seems Qualcomm does not patch lot of newly released vulnerabilities. I
> would love to upgrade to the latest 3.18.138 (not 4.x)

> What is the best practice here? 

Since you're being forced by Qualcomm to use 3.18, take it up with them.

What's this? You say you're not forced to do it?  Well, there's two things you
can do:

1) Continue feeling the pain of running an old kernel
2) Fix the reason you're on 3.18, and get on a 4.x or 5.x kernel.

Your choice.