This bug is missing log files that will aid in diagnosing the problem.
While running an Ubuntu kernel (not a mainline or third-party kernel)
please enter the following command in a terminal window:
apport-collect 1897963
and then change the status of the bug to 'Confirmed'.
If, due to the nature of the issue you have encountered, you are unable
to run this command, please add a comment stating that fact and change
the bug status to 'Confirmed'.
This change has been made by an automated script, maintained by the
Ubuntu Kernel Team.
** Changed in: linux (Ubuntu)
Status: New => Incomplete
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https://bugs.launchpad.net/bugs/1897963
Title:
Kernel null pointer dereference - Lenovo Thinkpad USB-C Dock Gen2
Status in linux package in Ubuntu:
Incomplete
Bug description:
Basically a null pointer dereference was happening while using a
lenovo usb-c dock. The issue has been addressed upstream with commit:
https://github.com/torvalds/linux/commit/386e15a650447f53de3d2d8819ce9393f31650a4
Apparently the dock kept sending altmode information repeatedly, and
the kernel did not expect this to happen, a check was added to make
sure it only observes the amount of altmodes limited by the standard.
ProblemType: Bug
DistroRelease: Ubuntu 18.04
Package: linux-image-5.4.0-48-generic 5.4.0-48.52~18.04.1
ProcVersionSignature: Ubuntu 5.4.0-48.52~18.04.1-generic 5.4.60
Uname: Linux 5.4.0-48-generic x86_64
ApportVersion: 2.20.9-0ubuntu7.17
Architecture: amd64
CurrentDesktop: ubuntu:GNOME
Date: Wed Sep 30 15:40:24 2020
InstallationDate: Installed on 2020-09-30 (0 days ago)
InstallationMedia: Ubuntu 18.04.5 LTS "Bionic Beaver" - Release amd64
(20200806.1)
SourcePackage: linux-signed-hwe-5.4
UpgradeStatus: No upgrade log present (probably fresh install)
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