Public bug reported:
System hard-locks during background process scanning in /proc.
Kernel version: 7.0.0-28-generic #28~24.04.1-Ubuntu
Hardware: ASRock Z790 Nova WiFi
Triggering process: wazuh-syscheckd (PID 4040) executing getdents64 on
/proc.
Stack trace:
BUG: unable to handle page fault for address: ffff8ea504a352eb
#PF: supervisor read access in kernel mode
Oops: 0000 [#1] SMP NOPTI
CPU: 8 Comm: wazuh-syscheckd
RIP: 0010:__task_pid_nr_ns+0x4e/0x100
Call Trace:
proc_task_readdir+0x272/0x3f0
iterate_dir+0xbe/0x250
__x64_sys_getdents64+0x78/0x110
do_syscall_64+0xd9/0x5b0
entry_SYSCALL_64_after_hwframe+0x76/0x7e
The issue causes a complete system hard lock requiring a physical reset.
ProblemType: Bug
DistroRelease: Ubuntu 24.04
Package: linux-image-7.0.0-28-generic 7.0.0-28.28~24.04.1
ProcVersionSignature: Ubuntu 7.0.0-28.28~24.04.1-generic 7.0.12
Uname: Linux 7.0.0-28-generic x86_64
ApportVersion: 2.28.2-0ubuntu0.1
Architecture: amd64
CRDA: N/A
CasperMD5CheckResult: unknown
CurrentDesktop: ubuntu:GNOME
Date: Thu Jul 23 09:46:43 2026
InstallationDate: Installed on 2025-09-21 (305 days ago)
InstallationMedia: Ubuntu 24.04.3 LTS "Noble Numbat" - Release amd64
(20250805.1)
MachineType: ASRock Z790 Nova WiFi
ProcEnviron:
LANG=pl_PL.UTF-8
PATH=(custom, no user)
SHELL=/bin/bash
TERM=xterm-256color
XDG_RUNTIME_DIR=<set>
ProcFB: 0 nvidia-drmdrmfb
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-7.0.0-28-generic
root=UUID=fcbf078f-08f3-4173-bb3e-08fe038985dc ro quiet splash vt.handoff=7
PulseList: Error: command ['pacmd', 'list'] failed with exit code 1: No
PulseAudio daemon running, or not running as session daemon.
RelatedPackageVersions:
linux-restricted-modules-7.0.0-28-generic N/A
linux-backports-modules-7.0.0-28-generic N/A
linux-firmware 20240318.git3b128b60-0ubuntu2.27
SourcePackage: linux-hwe-7.0
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 09/25/2025
dmi.bios.release: 5.27
dmi.bios.vendor: American Megatrends International, LLC.
dmi.bios.version: 10.01
dmi.board.name: Z790 Nova WiFi
dmi.board.vendor: ASRock
dmi.chassis.asset.tag: To Be Filled By O.E.M.
dmi.chassis.type: 3
dmi.chassis.vendor: To Be Filled By O.E.M.
dmi.chassis.version: To Be Filled By O.E.M.
dmi.modalias:
dmi:bvnAmericanMegatrendsInternational,LLC.:bvr10.01:bd09/25/2025:br5.27:svnASRock:pnZ790NovaWiFi:pvrToBeFilledByO.E.M.:rvnASRock:rnZ790NovaWiFi:rvr:cvnToBeFilledByO.E.M.:ct3:cvrToBeFilledByO.E.M.:skuToBeFilledByO.E.M.:pfaToBeFilledByO.E.M.:
dmi.product.family: To Be Filled By O.E.M.
dmi.product.name: Z790 Nova WiFi
dmi.product.sku: To Be Filled By O.E.M.
dmi.product.version: To Be Filled By O.E.M.
dmi.sys.vendor: ASRock
** Affects: linux-hwe-7.0 (Ubuntu)
Importance: Undecided
Status: New
** Tags: amd64 apport-bug noble
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https://bugs.launchpad.net/bugs/2161607
Title:
Kernel panic (page fault in __task_pid_nr_ns during proc_task_readdir)
on 7.0.0-28-generic
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