Public bug reported:

Feb 18 22:53:33 capella kernel: [   90.784263] usb 3-4: USB disconnect, device 
number 4
Feb 18 22:53:33 capella kernel: [   90.784276] usb 3-4.1: USB disconnect, 
device number 5
Feb 18 22:53:33 capella kernel: [   90.784708] usb 3-4.2: USB disconnect, 
device number 6
Feb 18 22:53:33 capella kernel: [   90.784715] usb 3-4.2.5: USB disconnect, 
device number 9
Feb 18 22:53:33 capella kernel: [   90.785811] usb 3-4.5: USB disconnect, 
device number 8
Feb 18 22:53:34 capella NetworkManager[1113]: <info>  [1645221214.2837] device 
(enx4865ee1529dc): state change: unavailable -> unmanaged (reason 'removed', 
sys-iface-state: 'removed')
Feb 18 22:53:34 capella kernel: [   91.416303] usb 2-3: USB disconnect, device 
number 2
Feb 18 22:53:34 capella kernel: [   91.416314] usb 2-3.2: USB disconnect, 
device number 3
Feb 18 22:53:34 capella kernel: [   91.416318] usb 2-3.2.4: USB disconnect, 
device number 5
Feb 18 22:53:34 capella kernel: [   91.477512] usb 2-3.4: USB disconnect, 
device number 4
Feb 18 22:53:34 capella kernel: [   91.477948] BUG: kernel NULL pointer 
dereference, address: 0000000000000030
Feb 18 22:53:34 capella kernel: [   91.477955] #PF: supervisor read access in 
kernel mode
Feb 18 22:53:34 capella kernel: [   91.477958] #PF: error_code(0x0000) - 
not-present page

ProblemType: Bug
DistroRelease: Ubuntu 20.04
Package: linux-image-5.14.0-1022-oem 5.14.0-1022.24
ProcVersionSignature: Ubuntu 5.14.0-1022.24-oem 5.14.21
Uname: Linux 5.14.0-1022-oem x86_64
ApportVersion: 2.20.11-0ubuntu27.21
Architecture: amd64
CasperMD5CheckResult: skip
CurrentDesktop: ubuntu:GNOME
Date: Fri Feb 18 23:00:53 2022
InstallationDate: Installed on 2021-11-12 (98 days ago)
InstallationMedia: Ubuntu 20.04.3 LTS "Focal Fossa" - Release amd64 (20210819)
SourcePackage: linux-signed-oem-5.14
UpgradeStatus: No upgrade log present (probably fresh install)

** Affects: linux-signed-oem-5.14 (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: amd64 apport-bug focal

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You received this bug notification because you are a member of Kernel
Packages, which is subscribed to linux-signed-oem-5.14 in Ubuntu.
https://bugs.launchpad.net/bugs/1961449

Title:
  Kernel panic after usb-c device unplugged

Status in linux-signed-oem-5.14 package in Ubuntu:
  New

Bug description:
  Feb 18 22:53:33 capella kernel: [   90.784263] usb 3-4: USB disconnect, 
device number 4
  Feb 18 22:53:33 capella kernel: [   90.784276] usb 3-4.1: USB disconnect, 
device number 5
  Feb 18 22:53:33 capella kernel: [   90.784708] usb 3-4.2: USB disconnect, 
device number 6
  Feb 18 22:53:33 capella kernel: [   90.784715] usb 3-4.2.5: USB disconnect, 
device number 9
  Feb 18 22:53:33 capella kernel: [   90.785811] usb 3-4.5: USB disconnect, 
device number 8
  Feb 18 22:53:34 capella NetworkManager[1113]: <info>  [1645221214.2837] 
device (enx4865ee1529dc): state change: unavailable -> unmanaged (reason 
'removed', sys-iface-state: 'removed')
  Feb 18 22:53:34 capella kernel: [   91.416303] usb 2-3: USB disconnect, 
device number 2
  Feb 18 22:53:34 capella kernel: [   91.416314] usb 2-3.2: USB disconnect, 
device number 3
  Feb 18 22:53:34 capella kernel: [   91.416318] usb 2-3.2.4: USB disconnect, 
device number 5
  Feb 18 22:53:34 capella kernel: [   91.477512] usb 2-3.4: USB disconnect, 
device number 4
  Feb 18 22:53:34 capella kernel: [   91.477948] BUG: kernel NULL pointer 
dereference, address: 0000000000000030
  Feb 18 22:53:34 capella kernel: [   91.477955] #PF: supervisor read access in 
kernel mode
  Feb 18 22:53:34 capella kernel: [   91.477958] #PF: error_code(0x0000) - 
not-present page

  ProblemType: Bug
  DistroRelease: Ubuntu 20.04
  Package: linux-image-5.14.0-1022-oem 5.14.0-1022.24
  ProcVersionSignature: Ubuntu 5.14.0-1022.24-oem 5.14.21
  Uname: Linux 5.14.0-1022-oem x86_64
  ApportVersion: 2.20.11-0ubuntu27.21
  Architecture: amd64
  CasperMD5CheckResult: skip
  CurrentDesktop: ubuntu:GNOME
  Date: Fri Feb 18 23:00:53 2022
  InstallationDate: Installed on 2021-11-12 (98 days ago)
  InstallationMedia: Ubuntu 20.04.3 LTS "Focal Fossa" - Release amd64 (20210819)
  SourcePackage: linux-signed-oem-5.14
  UpgradeStatus: No upgrade log present (probably fresh install)

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