linux/5.13.0-24.24 proposed fixed it for me on a ThinkPad L13 (non-Yoga)
I had to install the linux-modules-extra to get wifi to work as well.

I just changed from fedora to ubuntu three weeks ago (after an unwanted
ssd replacement) and can now finally use my ubuntu notebook as it is
supposed to be used (without an external mouse)

thanks

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https://bugs.launchpad.net/bugs/1945590

Title:
  Thinkpad E14 Gen2: Kernel panic with trackpad and trackpoint enabled

Status in linux package in Ubuntu:
  Confirmed
Status in linux source package in Impish:
  Fix Committed
Status in linux source package in Jammy:
  Confirmed

Bug description:
  [Impact]

  On some thinkpads we may get a kernel panic at boot, because the
  elantech driver (trakcpad) can trigger out-of-bounds access in the
  stack.

  [Test case]

  Simply boot the kernel on one of the affected systems (e.g., Thinkpad
  E14 Gen2).

  [Fix]

  Prevent the stack out of bound access by applying the following
  upstream commit (from linux-next):

  1d72d9f960cc ("Input: elantech - fix stack out of bound access in
  elantech_change_report_id()")

  [Regression potential]

  The fix is touching the elantech driver, so we could only see
  regressions with this specific trackpad/mouse driver.

  [Original bug report]

  I installed the Ubuntu 21.10 beta and as soon as I boot I get the
  kernel panic that I am attaching.

  I also installed Ubuntu 21.04 and upgraded, as soon as I boot with the
  5.13 kernel I get the same problem, disabling the trackpad and
  trackpoint in the bios the problem disappears.

  Everything works with the 5.11 kernel.
  I remain available for further details and sorry for my lack of experience.

  ProblemType: Bug
  DistroRelease: Ubuntu 21.10
  Package: linux-image-5.13.0-16-generic 5.13.0-16.16
  ProcVersionSignature: Ubuntu 5.13.0-16.16-generic 5.13.13
  Uname: Linux 5.13.0-16-generic x86_64
  NonfreeKernelModules: nvidia_modeset nvidia
  ApportVersion: 2.20.11-0ubuntu69
  Architecture: amd64
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC0:  pietro     1810 F.... pulseaudio
  CasperMD5CheckResult: pass
  CurrentDesktop: ubuntu:GNOME
  Date: Thu Sep 30 10:26:10 2021
  InstallationDate: Installed on 2021-09-29 (0 days ago)
  InstallationMedia: Ubuntu 21.04 "Hirsute Hippo" - Release amd64 (20210420)
  MachineType: LENOVO 20TA0033IX
  ProcEnviron:
   PATH=(custom, no user)
   XDG_RUNTIME_DIR=<set>
   LANG=it_IT.UTF-8
   SHELL=/bin/bash
  ProcFB: 0 i915drmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-5.13.0-16-generic 
root=UUID=b5ea9465-4cd9-408b-8e30-458acf90181b ro quiet splash vt.handoff=7
  RelatedPackageVersions:
   linux-restricted-modules-5.13.0-16-generic N/A
   linux-backports-modules-5.13.0-16-generic  N/A
   linux-firmware                             1.201
  SourcePackage: linux
  UpgradeStatus: Upgraded to impish on 2021-09-29 (0 days ago)
  dmi.bios.date: 09/02/2021
  dmi.bios.release: 1.43
  dmi.bios.vendor: LENOVO
  dmi.bios.version: R1EET43W(1.43 )
  dmi.board.asset.tag: Not Available
  dmi.board.name: 20TA0033IX
  dmi.board.vendor: LENOVO
  dmi.board.version: SDK0J40697 WIN
  dmi.chassis.asset.tag: No Asset Information
  dmi.chassis.type: 10
  dmi.chassis.vendor: LENOVO
  dmi.chassis.version: None
  dmi.ec.firmware.release: 1.43
  dmi.modalias: 
dmi:bvnLENOVO:bvrR1EET43W(1.43):bd09/02/2021:br1.43:efr1.43:svnLENOVO:pn20TA0033IX:pvrThinkPadE14Gen2:skuLENOVO_MT_20TA_BU_Think_FM_ThinkPadE14Gen2:rvnLENOVO:rn20TA0033IX:rvrSDK0J40697WIN:cvnLENOVO:ct10:cvrNone:
  dmi.product.family: ThinkPad E14 Gen 2
  dmi.product.name: 20TA0033IX
  dmi.product.sku: LENOVO_MT_20TA_BU_Think_FM_ThinkPad E14 Gen 2
  dmi.product.version: ThinkPad E14 Gen 2
  dmi.sys.vendor: LENOVO

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