Public bug reported:
On insertion of a Huawei E173 mobile internet USB stick the artful
kernel now oopses:
BUG: unable to handle kernel NULL pointer dereference at 00000000000003d0
[ 633.710837] IP: pkt_setup_dev+0x2af/0x650 [pktcdvd]
Issue seems to be related to the setup of the cdrom-like device hosted
on the stick together with the UMTS modem.
May possibly be due to some race as the usb stick configuration keeps
changing until the device is properly switched to operate as a modem.
Some of the times, UMTS modem remains detected notwithstanding the
issue.
After the issue, the system has problems in shutting down, though.
ProblemType: Bug
DistroRelease: Ubuntu 17.10
Package: linux-image-generic 4.13.0.43.46
ProcVersionSignature: Ubuntu 4.13.0-43.48-generic 4.13.16
Uname: Linux 4.13.0-43-generic x86_64
ApportVersion: 2.20.7-0ubuntu3.8
Architecture: amd64
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC0: callegar 2654 F.... pulseaudio
/dev/snd/controlC1: callegar 2654 F.... pulseaudio
CurrentDesktop: KDE
Date: Tue May 29 08:27:52 2018
EcryptfsInUse: Yes
HibernationDevice: RESUME=UUID=c7dd5aac-abad-4cd0-9cac-552d49960853
InstallationDate: Installed on 2013-12-12 (1628 days ago)
InstallationMedia: Kubuntu 13.10 "Saucy Salamander" - Release amd64 (20131016.1)
MachineType: Notebook W740SU
ProcFB: 0 inteldrmfb
ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-4.13.0-43-generic
root=/dev/mapper/zagar_ssd--vg-root ro quiet splash
resume=/dev/zagar_ssd-vg/swap_1 acpi_backlight=vendor vt.handoff=7
RelatedPackageVersions:
linux-restricted-modules-4.13.0-43-generic N/A
linux-backports-modules-4.13.0-43-generic N/A
linux-firmware 1.169.3
SourcePackage: linux
UpgradeStatus: Upgraded to artful on 2017-10-26 (214 days ago)
dmi.bios.date: 10/02/2013
dmi.bios.vendor: American Megatrends Inc.
dmi.bios.version: 4.6.5
dmi.board.asset.tag: Tag 12345
dmi.board.name: W740SU
dmi.board.vendor: Notebook
dmi.board.version: Not Applicable
dmi.chassis.asset.tag: No Asset Tag
dmi.chassis.type: 9
dmi.chassis.vendor: Notebook
dmi.chassis.version: N/A
dmi.modalias:
dmi:bvnAmericanMegatrendsInc.:bvr4.6.5:bd10/02/2013:svnNotebook:pnW740SU:pvrNotApplicable:rvnNotebook:rnW740SU:rvrNotApplicable:cvnNotebook:ct9:cvrN/A:
dmi.product.family: Not Applicable
dmi.product.name: W740SU
dmi.product.version: Not Applicable
dmi.sys.vendor: Notebook
** Affects: linux (Ubuntu)
Importance: Undecided
Status: New
** Tags: amd64 apport-bug artful
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https://bugs.launchpad.net/bugs/1773906
Title:
Upgraded artful kernel oopses with null pointer dereference on
pkt_setup_dev on insertion of mobile usb stick
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