Kernel panic at boot

On do-release-upgrade to Impish with the 5.13 kernel the boot messages stop scrolling at:

fb0: switching to amdgpudrmfb from EFI VGA

This happens on a Lenovo E15G2 with AMD Renoir graphics.

The system may be continuing to boot but the screen stops updating.

The 5.11 and 5.12 kernels both boot correctly.

Turns out this is a kernel panic described here:[email protected]/msg5949850.html

to do with the Elantech driver. In that thread Chris Chiu states "It should be caused by the kbuild flag -fcf-protection=none and this will not be applied for the UBUNTU release image."

I tried the kernel he compiled, presumably without that flag:

and it works.

Anyone know if/when this will be addressed for new kernels in Impish? I am not really thrilled about relearning how to compile a kernel myself.