[Bug 2144950] Re: i2c_i801 regression crashes udev in certain situations

** Tags added: kernel-daily-bug

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Title:
i2c_i801 regression crashes udev in certain situations

Status in linux package in Ubuntu:
New
Status in linux-hwe-6.8 package in Ubuntu:
New

Bug description:
Upstream commit f707d6b9e7c18f669adfdb443906d46cfbaaa0c1 added a race
condition in the i2c_i801 driver that predictably causes a panic (if
panic_on_oops=1) or crashes udev during boot in certain circumstances.

This is present beginning in Ubuntu kernel 6.8, it is present in all
kernels until upstream commit
cfc69c2e6c699c96949f7b0455195b0bfb7dc715. This has been ported into
the upstream stable kernel trees and I am requesting it be added to
the queue for 22.04 HWE, 24.04, and any supported non-LTS releases if
possible.

See also:
https://lore.kernel.org/linux-i2c/20260228014124.1884412-1-chaithco@redhat.com/

ProblemType: Bug
DistroRelease: Ubuntu 22.04
Package: linux-image-6.8.0-106-generic 6.8.0-106.106~22.04.1
ProcVersionSignature: Ubuntu 6.8.0-106.106~22.04.1-generic 6.8.12
Uname: Linux 6.8.0-106-generic x86_64
AlsaDevices:
 total 0
 crw-rw---- 1 root audio 116, 1 Mar 19 21:00 seq
 crw-rw---- 1 root audio 116, 33 Mar 19 21:00 timer
AplayDevices: Error: [Errno 2] No such file or directory: 'aplay'
ApportVersion: 2.20.11-0ubuntu82.10
Architecture: amd64
ArecordDevices: Error: [Errno 2] No such file or directory: 'arecord'
AudioDevicesInUse: Error: command ['fuser', '-v', '/dev/snd/seq', '/dev/snd/timer'] failed with exit code 1:
CRDA: N/A
CasperMD5CheckResult: pass
CloudArchitecture: x86_64
CloudID: none
CloudName: none
CloudPlatform: none
CloudSubPlatform: config
Date: Thu Mar 19 21:02:27 2026
InstallationDate: Installed on 2026-03-19 (0 days ago)
InstallationMedia: Ubuntu-Server 22.04.4 LTS "Jammy Jellyfish" - Release amd64 (20240216.1)
IwConfig: Error: [Errno 2] No such file or directory: 'iwconfig'
MachineType: XXXXXXXXX
PciMultimedia:

ProcEnviron:
 TERM=xterm-256color
 PATH=(custom, no user)
 LANG=en_US.UTF-8
 SHELL=/bin/bash
ProcFB: 0 astdrmfb
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-6.8.0-106-generic root=UUID=980dc1f4-469f-434f-ada9-ff07546d14de ro modprobe.blacklist=i2c_i801
RelatedPackageVersions:
 linux-restricted-modules-6.8.0-106-generic N/A
 linux-backports-modules-6.8.0-106-generic N/A
 linux-firmware 20220329.git681281e4-0ubuntu3.41
RfKill: Error: [Errno 2] No such file or directory: 'rfkill'
SourcePackage: linux-hwe-6.8
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 08/30/2022
dmi.bios.release: 5.11
dmi.bios.vendor: American Megatrends Inc.
dmi.bios.version: 1.20.10.XXXXX
dmi.board.asset.tag: Default string
dmi.board.name: To be filled by O.E.M.
dmi.board.vendor: XXXXXXXXXXX
dmi.board.version: To be filled by O.E.M.
dmi.chassis.asset.tag: XXXXXXXXXXXXXX
dmi.chassis.type: 23
dmi.chassis.vendor: Default string
dmi.chassis.version: Default string
dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvr1.20.10.SV90:bd08/30/2022:br5.11:XXXXXXX:XXXXXXX:pvrDefaultstring:XXXXXXXXXX:rnTobefilledbyO.E.M.:rvrTobefilledbyO.E.M.:cvnDefaultstring:ct23:cvrDefaultstring:sku:
dmi.product.family: Default string
dmi.product.name: XXXXXXXX
dmi.product.version: Default string
dmi.sys.vendor: XXXXXXXX

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