[Bug 2162066] [NEW] Kernel panic during shutdown: list_del corruption in list_lru_del_obj followed by stack corruption in list_lru_walk_node on 7.0.0-28-generic

Public bug reported: Expected result: Selecting Shut Down from the KDE Plasma application menu should cleanly terminate running processes and power off the computer. Actual result: After selecting Shut Down from the KDE Plasma application menu, the kernel reported repeated list_del corruption while cleaning up processes. The trace included list_lru_del_obj, d_lru_del, shrink_dcache_tree, proc_flush_pid, and release_task. The shutdown sequence then ended in a kernel panic displaying: stack-protector: Kernel stack is corrupted in: list_lru_walk_node+0x200/0x200 The computer did not power off and required a manual reboot/power cycle. ProblemType: Bug DistroRelease: Ubuntu 26.04 Package: linux-image-7.0.0-28-generic 7.0.0-28.28 ProcVersionSignature: Ubuntu 7.0.0-28.28-generic 7.0.12 Uname: Linux 7.0.0-28-generic x86_64 ApportVersion: 2.34.1-0ubuntu0.1 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC1: jay 2067 F.... wireplumber /dev/snd/controlC0: jay 2067 F.... wireplumber /dev/snd/seq: jay 2064 F.... pipewire CasperMD5CheckResult: unknown CurrentDesktop: KDE Date: Wed Jul 29 09:35:39 2026 InstallationDate: Installed on 2026-07-01 (28 days ago) InstallationMedia: Kubuntu 26.04 "Resolute Raccoon" - Release amd64 (20260423) MachineType: Micro-Star International Co., Ltd. MS-7C91 ProcFB: 0 amdgpudrmfb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-7.0.0-28-generic root=UUID=6a5f5940-762e-4f55-b481-067ca3db5b2c ro quiet splash nvme_core.default_ps_max_latency_us=0 PulseList: Error: command ['pacmd', 'list'] failed with exit code 1: No PulseAudio daemon running, or not running as session daemon. RfKill: SourcePackage: linux UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 10/19/2023 dmi.bios.release: 5.17 dmi.bios.vendor: American Megatrends International, LLC. dmi.bios.version: A.F0 dmi.board.asset.tag: To be filled by O.E.M. dmi.board.name: MAG B550 TOMAHAWK (MS-7C91) dmi.board.vendor: Micro-Star International Co., Ltd. dmi.board.version: 2.0 dmi.chassis.asset.tag: To be filled by O.E.M. dmi.chassis.type: 3 dmi.chassis.vendor: Micro-Star International Co., Ltd. dmi.chassis.version: 2.0 dmi.modalias: dmi:bvnAmericanMegatrendsInternational,LLC.:bvrA.F0:bd10/19/2023:br5.17:svnMicro-StarInternationalCo.,Ltd.:pnMS-7C91:pvr2.0:rvnMicro-StarInternationalCo.,Ltd.:rnMAGB550TOMAHAWK(MS-7C91):rvr2.0:cvnMicro-StarInternationalCo.,Ltd.:ct3:cvr2.0:skuTobefilledbyO.E.M.:pfaTobefilledbyO.E.M.: dmi.product.family: To be filled by O.E.M. dmi.product.name: MS-7C91 dmi.product.sku: To be filled by O.E.M. dmi.product.version: 2.0 dmi.sys.vendor: Micro-Star International Co., Ltd. ** Affects: linux (Ubuntu) Importance: Undecided Status: New ** Tags: amd64 apport-bug resolute wayland-session -- You received this bug notification because you are subscribed to linux in Ubuntu. Matching subscriptions: Bgg, Bmail, Nb https://bugs.launchpad.net/bugs/2162066 Title: Kernel panic during shutdown: list_del corruption in list_lru_del_obj followed by stack corruption in list_lru_walk_node on 7.0.0-28-generic Status in linux package in Ubuntu: New Bug description: Expected result: Selecting Shut Down from the KDE Plasma application menu should cleanly terminate running processes and power off the computer. Actual result: After selecting Shut Down from the KDE Plasma application menu, the kernel reported repeated list_del corruption while cleaning up processes. The trace included list_lru_del_obj, d_lru_del, shrink_dcache_tree, proc_flush_pid, and release_task. The shutdown sequence then ended in a kernel panic displaying: stack-protector: Kernel stack is corrupted in: list_lru_walk_node+0x200/0x200 The computer did not power off and required a manual reboot/power cycle. ProblemType: Bug DistroRelease: Ubuntu 26.04 Package: linux-image-7.0.0-28-generic 7.0.0-28.28 ProcVersionSignature: Ubuntu 7.0.0-28.28-generic 7.0.12 Uname: Linux 7.0.0-28-generic x86_64 ApportVersion: 2.34.1-0ubuntu0.1 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC1: jay 2067 F.... wireplumber /dev/snd/controlC0: jay 2067 F.... wireplumber /dev/snd/seq: jay 2064 F.... pipewire CasperMD5CheckResult: unknown CurrentDesktop: KDE Date: Wed Jul 29 09:35:39 2026 InstallationDate: Installed on 2026-07-01 (28 days ago) InstallationMedia: Kubuntu 26.04 "Resolute Raccoon" - Release amd64 (20260423) MachineType: Micro-Star International Co., Ltd. MS-7C91 ProcFB: 0 amdgpudrmfb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-7.0.0-28-generic root=UUID=6a5f5940-762e-4f55-b481-067ca3db5b2c ro quiet splash nvme_core.default_ps_max_latency_us=0 PulseList: Error: command ['pacmd', 'list'] failed with exit code 1: No PulseAudio daemon running, or not running as session daemon. RfKill: SourcePackage: linux UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 10/19/2023 dmi.bios.release: 5.17 dmi.bios.vendor: American Megatrends International, LLC. dmi.bios.version: A.F0 dmi.board.asset.tag: To be filled by O.E.M. dmi.board.name: MAG B550 TOMAHAWK (MS-7C91) dmi.board.vendor: Micro-Star International Co., Ltd. dmi.board.version: 2.0 dmi.chassis.asset.tag: To be filled by O.E.M. dmi.chassis.type: 3 dmi.chassis.vendor: Micro-Star International Co., Ltd. dmi.chassis.version: 2.0 dmi.modalias: dmi:bvnAmericanMegatrendsInternational,LLC.:bvrA.F0:bd10/19/2023:br5.17:svnMicro-StarInternationalCo.,Ltd.:pnMS-7C91:pvr2.0:rvnMicro-StarInternationalCo.,Ltd.:rnMAGB550TOMAHAWK(MS-7C91):rvr2.0:cvnMicro-StarInternationalCo.,Ltd.:ct3:cvr2.0:skuTobefilledbyO.E.M.:pfaTobefilledbyO.E.M.: dmi.product.family: To be filled by O.E.M. dmi.product.name: MS-7C91 dmi.product.sku: To be filled by O.E.M. dmi.product.version: 2.0 dmi.sys.vendor: Micro-Star International Co., Ltd. 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