Custom Linux Kernel Module Can't be Inserted in WSL 2

OS: Windows 11, WSL2(Ubuntu 22.04)

inside WSL2, command uname -r returns: 5.15.90.1-microsoft-standard-WSL2

Firstly, I dowloaded the correct version of Linux kernel from Github: WSL2-Linux-Kernel. Then I compiled and installed it, and created a soft link from /lib/modules to /usr/src with this command:

sudo ln -s /lib/modules/5.15.90.1-microsoft-standard-WSL2 /usr/src/5.15.90.1-microsoft-standard-WSL2

I wrote a custom kernel module with C: hello.c, with a Makefile like below:

obj-m := hello.oall:make -C /usr/src/`uname -r` M=$PWD modulesclean:make -C /usr/src/`uname -r` M=$PWD clean

inside the same path of hello.c, I use this command to build the hello.ko file:

make -C /usr/src/`uname -r`/build M=$PWD

And then the hello.ko file was successfully generated. But when I ran the command insmod hello.ko it threw an error like this:

insmod: ERROR: could not insert module hello.ko: Invalid module format

How to fix it?