Public bug reported:
Crash during boot. User experiences it as a hang, requiring forced power
off to restart.
did not occur on 6.17.0-22; started after upgrade to 7.0.0-22.
ProblemType: Bug
DistroRelease: Ubuntu 26.04
Package: linux-image-7.0.0-22-generic 7.0.0-22.22
ProcVersionSignature: Ubuntu 7.0.0-22.22-generic 7.0.0
Uname: Linux 7.0.0-22-generic x86_64
NonfreeKernelModules: socwatch2_16 sep5 pax nvidia_modeset nvidia
ApportVersion: 2.34.0-0ubuntu2
Architecture: amd64
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC0: devinem 3849 F.... wireplumber
/dev/snd/controlC1: devinem 3849 F.... wireplumber
/dev/snd/seq: devinem 3833 F.... pipewire
CasperMD5CheckResult: pass
CurrentDesktop: ubuntu:GNOME
Date: Mon Jun 15 16:39:52 2026
InstallationDate: Installed on 2025-11-30 (198 days ago)
InstallationMedia: Ubuntu 24.04.3 LTS "Noble Numbat" - Release amd64
(20250805.1)
MachineType: LENOVO 20HJS01F00
ProcFB: 0 i915drmfb
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-7.0.0-22-generic
root=UUID=362a7841-13a7-47fb-a888-2d4c270ecc18 ro quiet splash loglevel=8 debug
crashkernel=2G-4G:320M,4G-32G:512M,32G-64G:1024M,64G-128G:2048M,128G-:4096M
SourcePackage: linux
UpgradeStatus: Upgraded to resolute on 2026-06-04 (12 days ago)
dmi.bios.date: 07/30/2024
dmi.bios.release: 1.65
dmi.bios.vendor: LENOVO
dmi.bios.version: N1UET91W (1.65 )
dmi.board.asset.tag: Not Available
dmi.board.name: 20HJS01F00
dmi.board.vendor: LENOVO
dmi.board.version: Not Defined
dmi.chassis.asset.tag: 5453438
dmi.chassis.type: 10
dmi.chassis.vendor: LENOVO
dmi.chassis.version: None
dmi.ec.firmware.release: 1.10
dmi.modalias:
dmi:bvnLENOVO:bvrN1UET91W(1.65):bd07/30/2024:br1.65:efr1.10:svnLENOVO:pn20HJS01F00:pvrThinkPadP51:rvnLENOVO:rn20HJS01F00:rvrNotDefined:cvnLENOVO:ct10:cvrNone:skuLENOVO_MT_20HJ_BU_Think_FM_ThinkPadP51:pfaThinkPadP51:
dmi.product.family: ThinkPad P51
dmi.product.name: 20HJS01F00
dmi.product.sku: LENOVO_MT_20HJ_BU_Think_FM_ThinkPad P51
dmi.product.version: ThinkPad P51
dmi.sys.vendor: LENOVO
** Affects: linux (Ubuntu)
Importance: Undecided
Status: New
** Tags: amd64 apport-bug resolute wayland-session
** Attachment added: "Output of "journalctl -b -1 -k""
https://bugs.launchpad.net/bugs/2156822/+attachment/5977616/+files/ppdev-oops-7.0.0-22.log
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https://bugs.launchpad.net/bugs/2156822
Title:
ppdev: NULL pointer deref in device_unbind_cleanup on probe failure —
hangs boot (7.0.0-22-generic)
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