On Boot after ramdisk loads: ACPI BIOS error (bug) AE_AML_Buffer_Limit, ... is beyond end of object

Bug #2007601 reported by Tim Lofstrom
12
This bug affects 2 people
Affects Status Importance Assigned to Milestone
linux-signed-hwe-5.19 (Ubuntu)
Confirmed
Undecided
Unassigned

Bug Description

this tool shows linux-signed-hwe-5.19? But Grub shows 5.19.0-32-generic
After regular Software Update to kernel 5.19.0-32-generic
on boot
after the boot disk is decrypted, and the ramdisk loads:
the error message (see attached jpg) shows briefly before continuing to load to the log in screen. No noticeable problems, but I've not tried to suspend (which in the past works, most of the time) with this kernel loaded.

Per wiki.ubuntu.com/Kernel/Bugs
1, hardware: see screenshot of Settings/About
2. every boot to this kernel produces the error
3. Does NOT Exist in previous kernels 5.15.0-60-generic and earlier
4. Problem: not sure how to test the latest development Ubuntu kernel version as well as the latest upstream mainline kernel.
Towards a solution: This probably is the latest development kernel?
(I've looked at https://wiki.ubuntu.com/Kernel/MainlineBuilds?action=show&redirect=KernelMainlineBuilds, AND
I'm not familiar enough with the language to understand what I'd be doing, so unless I have specific directions on how to test the latest development and upstream mainline kernels, I'm not about to stab in the dark at it.
I only get the basic drift that this bug may be fixed in the upcoming kernels, and installing them may or may not work (for other reasons) on the LTS I have running now.

this command gives this result
$ cat /proc/version_signature
Ubuntu 5.19.0-32.33~22.04.1-generic 5.19.17

Not sure if this is a security risk or not, so to be safe I ticked that it is. Smells like it to me, anyway.

ProblemType: Bug
DistroRelease: Ubuntu 22.04
Package: linux-image-5.19.0-32-generic 5.19.0-32.33~22.04.1
ProcVersionSignature: Ubuntu 5.19.0-32.33~22.04.1-generic 5.19.17
Uname: Linux 5.19.0-32-generic x86_64
ApportVersion: 2.20.11-0ubuntu82.3
Architecture: amd64
CasperMD5CheckResult: pass
CurrentDesktop: ubuntu:GNOME
Date: Thu Feb 16 10:08:33 2023
InstallationDate: Installed on 2023-01-11 (36 days ago)
InstallationMedia: Ubuntu 22.04.1 LTS "Jammy Jellyfish" - Release amd64 (20220809.1)
SourcePackage: linux-signed-hwe-5.19
UpgradeStatus: No upgrade log present (probably fresh install)

Revision history for this message
Tim Lofstrom (s2-prwebs-com) wrote :
Revision history for this message
Marc Deslauriers (mdeslaur) wrote : Bug is not a security issue

Thanks for taking the time to report this bug and helping to make Ubuntu better. We appreciate the difficulties you are facing, but this appears to be a "regular" (non-security) bug. I have unmarked it as a security issue since this bug does not show evidence of allowing attackers to cross privilege boundaries nor directly cause loss of data/privacy. Please feel free to report any other bugs you may find.

information type: Private Security → Public
Revision history for this message
Launchpad Janitor (janitor) wrote :

Status changed to 'Confirmed' because the bug affects multiple users.

Changed in linux-signed-hwe-5.19 (Ubuntu):
status: New → Confirmed
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