Cherry Pick needed for Critical upstream patch for Kernel null pointer dereference - usb-c altmode
Affects | Status | Importance | Assigned to | Milestone | |
---|---|---|---|---|---|
linux (Ubuntu) |
Fix Released
|
Undecided
|
Unassigned | ||
Focal |
Fix Released
|
High
|
Unassigned |
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:/
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-
ProcVersionSign
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-
UpgradeStatus: No upgrade log present (probably fresh install)
CVE References
affects: | linux-signed-hwe-5.4 (Ubuntu) → linux (Ubuntu) |
tags: | added: patch |
summary: |
- Kernel null pointer dereference - Lenovo Thinkpad USB-C Dock Gen2 + Cherry Pick needed for Critical upstream patch for Kernel null pointer + dereference - usb-c altmode |
Changed in linux (Ubuntu Focal): | |
importance: | Undecided → High |
Changed in linux (Ubuntu Focal): | |
status: | New → Fix Committed |
I would like to request Ubuntu devs to please cherry pick the changes from the bug report into Ubuntu's 5.4 kernel as this is a critical issue.