As this got applied in 5.4 Focal, Bionic 5.4 will get this fix as well when it got released. Thanks
-- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1897963 Title: Cherry Pick needed for Critical upstream patch for Kernel null pointer dereference - usb-c altmode Status in linux package in Ubuntu: Confirmed Status in linux source package in Focal: Fix Committed 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) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1897963/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
