buntu 6.5.0-21.21~22.04.1-generic 6.5.8

** Attachment added: "version.log"
   
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/2056303/+attachment/5753222/+files/version.log

** Description changed:

  On one Lenovo machine, using a hwe-22.04 kernel, I get several messages
  from UBSAN while booting. Previously, on the non-hwe kernel for Jammy,
  the screen went black shortly after logging in, and that doesn't seem to
  happen any more, so there is improvement, but it seems still something
  is going wrong.
  
  Attached are the dmesg (where the UBSAN errors are listed), and the
  output from lspci and the version.
+ 
+ In the dmesg there is this line,
+ 
+ [   19.151801] kfd kfd: amdgpu: STONEY  not supported in kfd
+ 
+ which somewhere was indicated that it would be improved in the hwe
+ kernel (that's why I tried it). Apparently the issue isn't fully fixex,
+ but the error seems to be handled better. (Source:
+ https://forums.linuxmint.com/viewtopic.php?t=410244 )

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https://bugs.launchpad.net/bugs/2056303

Title:
  several  UBSAN: array-index-out-of-bounds in
  .../hwmgr/processpptables.c

Status in linux package in Ubuntu:
  New

Bug description:
  On one Lenovo machine, using a hwe-22.04 kernel, I get several
  messages from UBSAN while booting. Previously, on the non-hwe kernel
  for Jammy, the screen went black shortly after logging in, and that
  doesn't seem to happen any more, so there is improvement, but it seems
  still something is going wrong.

  Attached are the dmesg (where the UBSAN errors are listed), and the
  output from lspci and the version.

  In the dmesg there is this line,

  [   19.151801] kfd kfd: amdgpu: STONEY  not supported in kfd

  which somewhere was indicated that it would be improved in the hwe
  kernel (that's why I tried it). Apparently the issue isn't fully
  fixex, but the error seems to be handled better. (Source:
  https://forums.linuxmint.com/viewtopic.php?t=410244 )

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