Package: src:linux
Version: 7.1.8-1~bpo13+1
Severity: important
X-Debbugs-Cc: [email protected]

Dear Maintainer,

*** Reporter, please consider answering these questions, where appropriate ***

   * What led up to the situation?
        The system was running Debian 13 with the backports kernel 
7.1.8-1~bpo13+1 on an amd64 ThinkPad system.
        The Wi-Fi interface (wlp3s0) is provided by the Intel iwlwifi driver 
(0000:03:00.0). The interface initially connects to the access point 
successfully.
        The problem occurs when the Wi-Fi interface is restarted or 
reconfigured. For example, restarting the interface/network connection causes a 
kernel panic. The
        issue appears to be related to the iwlwifi driver while it is stopping, 
restarting, or reconfiguring the Wi-Fi device.
        The system also has the out-of-tree thinkpad_ec and tp_smapi modules 
loaded, so the kernel is tainted with O and E.
        
   * What exactly did you do (or not do) that was effective (or
     ineffective)?
    The Wi-Fi device is:
                PCI device: 03:00.0
                Driver: iwlwifi
                Interface: wlp3s0
        The interface initially connects normally:
                wlp3s0: authenticate with d6:31:27:9e:f0:b7
                wlp3s0: authenticated
                wlp3s0: associated
        After subsequently restarting or reconfiguring the Wi-Fi interface, the 
kernel panics. 

   * What was the outcome of this action?
        The kernel panics during the Wi-Fi restart/reconfiguration operation, 
resulting in a system hang/crash and requiring a reboot.
        The normal Wi-Fi operation before the restart works correctly.
        The supplied kernel log shows repeated initialization messages from 
iwlwifi, including:
        iwlwifi 0000:03:00.0: Radio type=0x1-0x2-0x0
        However, the supplied boot/runtime log does not contain the kernel 
panic backtrace itself.

   * What outcome did you expect instead?
        Restarting or reconfiguring wlp3s0 should cause the Wi-Fi driver to 
stop and reinitialize the device without crashing the kernel. The interface 
should become 
        available again and reconnect to the configured wireless network.

-- Package-specific info:
** Version:
Linux version 7.1.8+deb13-amd64 ([email protected]) 
(x86_64-linux-gnu-gcc-14 (Debian 14.2.0-19) 14.2.0, GNU ld (GNU Binutils for 
Debian) 2.44) #1 SMP PREEMPT_DYNAMIC Debian 7.1.8-1~bpo13+1 (2026-08-16)

** Command line:
BOOT_IMAGE=/boot/vmlinuz-7.1.8+deb13-amd64 
root=UUID=1dc2ccac-2179-47ff-9cec-45bf4274e616 ro loglevel=3 
mem_sleep_default=deep

** Tainted: IOE (14336)
 * workaround for bug in platform firmware applied
 * externally-built ("out-of-tree") module was loaded
 * unsigned module was loaded

** Kernel log:
[    8.139695] audit: type=1400 audit(1789082857.868:8): apparmor="STATUS" 
operation="profile_load" profile="unconfined" name="buildah" pid=883 
comm="apparmor_parser"
[    8.150304] audit: type=1400 audit(1789082857.876:9): apparmor="STATUS" 
operation="profile_load" profile="unconfined" name="cam" pid=885 
comm="apparmor_parser"
[    8.150316] audit: type=1400 audit(1789082857.876:10): apparmor="STATUS" 
operation="profile_load" profile="unconfined" name="ch-checkns" pid=886 
comm="apparmor_parser"
[    8.150322] audit: type=1400 audit(1789082857.876:11): apparmor="STATUS" 
operation="profile_load" profile="unconfined" name="busybox" pid=884 
comm="apparmor_parser"
[    8.178074] i915 0000:00:02.0: [drm] Allocating fbdev: Stolen memory not 
preferred.
[    8.179825] fbcon: i915drmfb (fb0) is primary device
[    8.235019] Bluetooth: Core ver 2.22
[    8.235070] NET: Registered PF_BLUETOOTH protocol family
[    8.235072] Bluetooth: HCI device and connection manager initialized
[    8.235079] Bluetooth: HCI socket layer initialized
[    8.235082] Bluetooth: L2CAP socket layer initialized
[    8.235089] Bluetooth: SCO socket layer initialized
[    8.284765] uvcvideo 2-1.6:1.0: Found UVC 1.00 device Integrated Camera 
(5986:02d5)
[    8.342865] usbcore: registered new interface driver uvcvideo
[    8.400106] usbcore: registered new interface driver btusb
[    9.119904] Console: switching to colour frame buffer device 170x48
[    9.139901] i915 0000:00:02.0: [drm] fb0: i915drmfb frame buffer device
[    9.155124] snd_hda_intel 0000:00:1b.0: bound 0000:00:02.0 (ops 
intel_audio_component_bind_ops [i915])
[    9.217515] snd_hda_codec_conexant hdaudioC0D0: CX20590: BIOS auto-probing.
[    9.218093] snd_hda_codec_conexant hdaudioC0D0: CX20590: picked fixup  for 
PCI SSID 17aa:21ce
[    9.218172] snd_hda_codec_conexant hdaudioC0D0: autoconfig for CX20590: 
line_outs=1 (0x1f/0x0/0x0/0x0/0x0) type:speaker
[    9.218180] snd_hda_codec_conexant hdaudioC0D0:    speaker_outs=0 
(0x0/0x0/0x0/0x0/0x0)
[    9.218185] snd_hda_codec_conexant hdaudioC0D0:    hp_outs=2 
(0x1c/0x19/0x0/0x0/0x0)
[    9.218190] snd_hda_codec_conexant hdaudioC0D0:    mono: mono_out=0x0
[    9.218193] snd_hda_codec_conexant hdaudioC0D0:    inputs:
[    9.218196] snd_hda_codec_conexant hdaudioC0D0:      Internal Mic=0x23
[    9.218200] snd_hda_codec_conexant hdaudioC0D0:      Dock Mic=0x1a
[    9.218203] snd_hda_codec_conexant hdaudioC0D0:      Mic=0x1b
[    9.298073] input: HDA Digital PCBeep as 
/devices/pci0000:00/0000:00:1b.0/sound/card0/input10
[    9.300212] input: HDA Intel PCH Dock Mic as 
/devices/pci0000:00/0000:00:1b.0/sound/card0/input11
[    9.302126] input: HDA Intel PCH Mic as 
/devices/pci0000:00/0000:00:1b.0/sound/card0/input12
[    9.302269] input: HDA Intel PCH Dock Headphone as 
/devices/pci0000:00/0000:00:1b.0/sound/card0/input13
[    9.302417] input: HDA Intel PCH Headphone as 
/devices/pci0000:00/0000:00:1b.0/sound/card0/input14
[    9.302549] input: HDA Intel PCH HDMI/DP,pcm=3 as 
/devices/pci0000:00/0000:00:1b.0/sound/card0/input15
[    9.306572] input: HDA Intel PCH HDMI/DP,pcm=7 as 
/devices/pci0000:00/0000:00:1b.0/sound/card0/input16
[    9.306775] input: HDA Intel PCH HDMI/DP,pcm=8 as 
/devices/pci0000:00/0000:00:1b.0/sound/card0/input17
[   10.036174] Bluetooth: BNEP (Ethernet Emulation) ver 1.3
[   10.036185] Bluetooth: BNEP filters: protocol multicast
[   10.036193] Bluetooth: BNEP socket layer initialized
[   10.045894] Bluetooth: MGMT ver 1.23
[   10.103242] Bluetooth: RFCOMM TTY layer initialized
[   10.103258] Bluetooth: RFCOMM socket layer initialized
[   10.103268] Bluetooth: RFCOMM ver 1.11
[   10.591937] iwlwifi 0000:03:00.0: Radio type=0x1-0x2-0x0
[   10.880737] iwlwifi 0000:03:00.0: Radio type=0x1-0x2-0x0
[   11.036906] iwlwifi 0000:03:00.0: Radio type=0x1-0x2-0x0
[   11.330461] iwlwifi 0000:03:00.0: Radio type=0x1-0x2-0x0
[   11.931666] thinkpad_ec: loading out-of-tree module taints kernel.
[   11.931681] thinkpad_ec: module verification failed: signature and/or 
required key missing - tainting kernel
[   11.937869] thinkpad_ec: thinkpad_ec 0.45 loaded.
[   11.953124] tp_smapi 0.45 loading...
[   11.953365] tp_smapi successfully loaded (smapi_port=0xb2).
[   14.596728] iwlwifi 0000:03:00.0: Radio type=0x1-0x2-0x0
[   14.887766] iwlwifi 0000:03:00.0: Radio type=0x1-0x2-0x0
[   15.029572] wlp3s0: authenticate with d6:31:27:9e:f0:b7 (local 
address=a0:88:b4:61:0a:f4)
[   15.029583] wlp3s0: send auth to d6:31:27:9e:f0:b7 (try 1/3)
[   15.031261] wlp3s0: authenticated
[   15.038069] wlp3s0: associate with d6:31:27:9e:f0:b7 (try 1/3)
[   15.040300] wlp3s0: RX AssocResp from d6:31:27:9e:f0:b7 (capab=0x1901 
status=0 aid=20)
[   15.043343] wlp3s0: associated
[   15.046311] wlp3s0: Limiting TX power to 30 (30 - 0) dBm as advertised by 
d6:31:27:9e:f0:b7
[   94.659222] systemd-journald[286]: Time jumped backwards, rotating.
[  311.712259] warning: `Socket Thread' uses wireless extensions which will 
stop working for Wi-Fi 7 hardware; use nl80211
[ 1617.643410] sd 0:0:0:0: [sda] Synchronizing SCSI cache
[ 1617.701568] sd 0:0:0:0: [sda] Stopping disk
[ 1622.290594] ata1: SATA link up 6.0 Gbps (SStatus 133 SControl 300)
[ 1622.302950] ata1.00: ACPI cmd f5/00:00:00:00:00:a0(SECURITY FREEZE LOCK) 
filtered out
[ 1622.347365] ata1.00: ACPI cmd f5/00:00:00:00:00:a0(SECURITY FREEZE LOCK) 
filtered out
[ 1622.369257] ata1.00: configured for UDMA/133
[ 1622.379562] sd 0:0:0:0: [sda] Starting disk
[ 1622.379689] sd 0:0:0:0: [sda] Starting disk
[ 1622.391215] sd 0:0:0:0: [sda] Starting disk
[ 1803.114831] sd 0:0:0:0: [sda] Synchronizing SCSI cache
[ 1803.170526] sd 0:0:0:0: [sda] Stopping disk
[ 1803.688343] sd 0:0:0:0: [sda] Starting disk
[ 1804.346043] sd 0:0:0:0: [sda] Starting disk
[ 1923.823870] sd 0:0:0:0: [sda] Synchronizing SCSI cache
[ 1923.830896] sd 0:0:0:0: [sda] Stopping disk
[ 1924.703617] ata1: SATA link up 6.0 Gbps (SStatus 133 SControl 300)
[ 1924.716121] ata1.00: ACPI cmd f5/00:00:00:00:00:a0(SECURITY FREEZE LOCK) 
filtered out
[ 1924.759885] ata1.00: ACPI cmd f5/00:00:00:00:00:a0(SECURITY FREEZE LOCK) 
filtered out
[ 1924.777611] ata1.00: configured for UDMA/133
[ 1924.787984] sd 0:0:0:0: [sda] Starting disk
[ 1924.788092] sd 0:0:0:0: [sda] Starting disk
[ 1924.791837] sd 0:0:0:0: [sda] Starting disk
[ 1985.764268] sd 0:0:0:0: [sda] Synchronizing SCSI cache
[ 1985.790733] sd 0:0:0:0: [sda] Stopping disk
[ 1991.401214] ata1: SATA link up 6.0 Gbps (SStatus 133 SControl 300)
[ 1991.413609] ata1.00: ACPI cmd f5/00:00:00:00:00:a0(SECURITY FREEZE LOCK) 
filtered out
[ 1991.458037] ata1.00: ACPI cmd f5/00:00:00:00:00:a0(SECURITY FREEZE LOCK) 
filtered out
[ 1991.475893] ata1.00: configured for UDMA/133
[ 1991.486291] sd 0:0:0:0: [sda] Starting disk
[ 1991.486508] sd 0:0:0:0: [sda] Starting disk
[ 1991.490337] sd 0:0:0:0: [sda] Starting disk
[ 2448.015599] sd 0:0:0:0: [sda] Synchronizing SCSI cache
[ 2448.079870] sd 0:0:0:0: [sda] Stopping disk
[ 2448.158114] sd 0:0:0:0: [sda] Starting disk
[ 2448.241917] sd 0:0:0:0: [sda] Starting disk
[ 3038.214950] clocksource: Watchdog remote CPU 2 read timed out
[ 3045.301201] usb 2-1.4: USB disconnect, device number 3

** Model information
sys_vendor: LENOVO
product_name: 4236MP9
product_version: ThinkPad T420
chassis_vendor: LENOVO
chassis_version: Not Available
bios_vendor: LENOVO
bios_version: 83ET82WW (1.52 )
board_vendor: LENOVO
board_name: 4236MP9
board_version: Not Available

** Configuration for modprobe:
blacklist arkfb
blacklist aty128fb
blacklist atyfb
blacklist cirrusfb
blacklist cyber2000fb
blacklist kyrofb
blacklist matroxfb_base
blacklist mb862xxfb
blacklist microcode
blacklist neofb
blacklist pm2fb
blacklist pm3fb
blacklist radeonfb
blacklist s3fb
blacklist savagefb
blacklist sisfb
blacklist tdfxfb
blacklist tridentfb
blacklist vt8623fb
options bonding max_bonds=0
options cx88_alsa index=-2
options dummy numdummies=0
options i915 i915_enable_rc6=7 i915_enable_fbc=1 lvds_downclock=1
options ifb numifbs=0
options snd_atiixp_modem index=-2
options snd_intel8x0m index=-2
options snd_pcsp index=-2
options snd_via82xx_modem index=-2
options thinkpad_acpi fan_control=1

** Loaded modules:
thinkpad_ec(OE)
tp_smapi(OE)
ac
aesni_intel
ahci
at24
autofs4
battery
binfmt_misc
bluetooth
bnep
btbcm
btintel
btmtk
btrtl
btusb
button
cdrom
cec
cfg80211
configfs
coretemp
cqhci
crc16
crc32c_cryptoapi
crc_itu_t
drm
drm_buddy
drm_client_lib
drm_display_helper
drm_kms_helper
e1000e
ecdh_generic
efi_pstore
efivarfs
ehci_hcd
ehci_pci
evdev
ext4
fat
firewire_core
firewire_ohci
firewire_sbp2
firmware_attributes_class
gf128mul
i2c_algo_bit
i2c_i801
i2c_smbus
i915
iTCO_wdt
intel_cstate
intel_pmc_bxt
intel_powerclamp
intel_rapl_common
intel_rapl_msr
intel_uncore
ip_tables
irqbypass
iwldvm
iwlwifi
jbd2
jc42
joydev
kvm
kvm_intel
libahci
libarc4
libata
lpc_ich
lz4_compress
lz4hc_compress
mac80211
mbcache
mc
mei
mei_hdcp
mei_me
mei_pxp
mei_wdt
mmc_core
nfnetlink
nls_ascii
nls_cp437
nvram
pcspkr
psmouse
rapl
rc_core
rfcomm
rfkill
scsi_common
scsi_mod
sd_mod
sdhci
sdhci_pci
sdhci_uhs2
serio_raw
sg
snd
snd_ctl_led
snd_hda_codec
snd_hda_codec_conexant
snd_hda_codec_generic
snd_hda_codec_hdmi
snd_hda_codec_intelhdmi
snd_hda_core
snd_hda_intel
snd_hrtimer
snd_hwdep
snd_intel_dspcfg
snd_intel_sdw_acpi
snd_pcm
snd_seq
snd_seq_device
snd_seq_dummy
snd_timer
soundcore
sparse_keymap
sr_mod
think_lmi
thinkpad_acpi
ttm
usb_common
usbcore
uvc
uvcvideo
vfat
video
videobuf2_common
videobuf2_memops
videobuf2_v4l2
videobuf2_vmalloc
videodev
watchdog
wmi
wmi_bmof
x86_pkg_temp_thermal
x_tables
zram
zstd

** Out of tree modules:
updates/dkms/thinkpad_ec.ko
updates/dkms/hdaps.ko
updates/dkms/acpi_call.ko
updates/dkms/tp_smapi.ko

** PCI devices:
0000:00:00.0 Host bridge [0600]: Intel Corporation 2nd Generation Core 
Processor Family DRAM Controller [8086:0104] (rev 09)
        Subsystem: Lenovo Device [17aa:21ce]
0000:00:02.0 VGA compatible controller [0300]: Intel Corporation 2nd Generation 
Core Processor Family Integrated Graphics Controller [8086:0126] (rev 09)
        Subsystem: Lenovo ThinkPad T420 [17aa:21ce]
        Kernel driver in use: i915
        Kernel modules: i915
0000:00:16.0 Communication controller [0780]: Intel Corporation 6 Series/C200 
Series Chipset Family MEI Controller #1 [8086:1c3a] (rev 04)
        Subsystem: Lenovo Device [17aa:21ce]
        Kernel driver in use: mei_me
        Kernel modules: mei_me
0000:00:16.3 Serial controller [0700]: Intel Corporation 6 Series/C200 Series 
Chipset Family KT Controller [8086:1c3d] (rev 04)
        Subsystem: Lenovo Device [17aa:21ce]
        Kernel driver in use: serial
        Kernel modules: 8250_pci
0000:00:19.0 Ethernet controller [0200]: Intel Corporation 82579LM Gigabit 
Network Connection (Lewisville) [8086:1502] (rev 04)
        Subsystem: Lenovo ThinkPad T520 [17aa:21ce]
        Kernel driver in use: e1000e
        Kernel modules: e1000e
0000:00:1a.0 USB controller [0c03]: Intel Corporation 6 Series/C200 Series 
Chipset Family USB Enhanced Host Controller #2 [8086:1c2d] (rev 04)
        Subsystem: Lenovo Device [17aa:21ce]
        Kernel driver in use: ehci-pci
        Kernel modules: ehci_pci
0000:00:1b.0 Audio device [0403]: Intel Corporation 6 Series/C200 Series 
Chipset Family High Definition Audio Controller [8086:1c20] (rev 04)
        Subsystem: Lenovo Device [17aa:21ce]
        Kernel driver in use: snd_hda_intel
        Kernel modules: snd_hda_intel
0000:00:1c.0 PCI bridge [0604]: Intel Corporation 6 Series/C200 Series Chipset 
Family PCI Express Root Port 1 [8086:1c10] (rev b4)
        Subsystem: Lenovo Device [17aa:21ce]
        Kernel driver in use: pcieport
        Kernel modules: shpchp
0000:00:1c.1 PCI bridge [0604]: Intel Corporation 6 Series/C200 Series Chipset 
Family PCI Express Root Port 2 [8086:1c12] (rev b4)
        Subsystem: Lenovo Device [17aa:21ce]
        Kernel driver in use: pcieport
        Kernel modules: shpchp
0000:00:1c.3 PCI bridge [0604]: Intel Corporation 6 Series/C200 Series Chipset 
Family PCI Express Root Port 4 [8086:1c16] (rev b4)
        Subsystem: Lenovo Device [17aa:21ce]
        Kernel driver in use: pcieport
        Kernel modules: shpchp
0000:00:1c.4 PCI bridge [0604]: Intel Corporation 6 Series/C200 Series Chipset 
Family PCI Express Root Port 5 [8086:1c18] (rev b4)
        Subsystem: Lenovo Device [17aa:21ce]
        Kernel driver in use: pcieport
        Kernel modules: shpchp
0000:00:1d.0 USB controller [0c03]: Intel Corporation 6 Series/C200 Series 
Chipset Family USB Enhanced Host Controller #1 [8086:1c26] (rev 04)
        Subsystem: Lenovo Device [17aa:21ce]
        Kernel driver in use: ehci-pci
        Kernel modules: ehci_pci
0000:00:1f.0 ISA bridge [0601]: Intel Corporation QM67 Express Chipset LPC 
Controller [8086:1c4f] (rev 04)
        Subsystem: Lenovo Device [17aa:21ce]
        Kernel driver in use: lpc_ich
        Kernel modules: lpc_ich
0000:00:1f.2 SATA controller [0106]: Intel Corporation 6 Series/C200 Series 
Chipset Family 6 port Mobile SATA AHCI Controller [8086:1c03] (rev 04)
        Subsystem: Lenovo Device [17aa:21ce]
        Kernel driver in use: ahci
        Kernel modules: ahci
0000:00:1f.3 SMBus [0c05]: Intel Corporation 6 Series/C200 Series Chipset 
Family SMBus Controller [8086:1c22] (rev 04)
        Subsystem: Lenovo Device [17aa:21ce]
        Kernel driver in use: i801_smbus
        Kernel modules: i2c_i801
0000:00:1c.1/03:00.0 Network controller [0280]: Intel Corporation Centrino 
Advanced-N 6205 [Taylor Peak] [8086:0085] (rev 34)
        Subsystem: Intel Corporation Centrino Advanced-N 6205 (802.11a/b/g/n) 
[8086:1311]
        Kernel driver in use: iwlwifi
        Kernel modules: iwlwifi
0000:00:1c.4/0d:00.0 System peripheral [0880]: Ricoh Co Ltd PCIe SDXC/MMC Host 
Controller [1180:e823] (rev 05)
        Subsystem: Lenovo Device [17aa:21ce]
        Kernel driver in use: sdhci-pci
        Kernel modules: sdhci_pci
0000:00:1c.4/0d:00.3 FireWire (IEEE 1394) [0c00]: Ricoh Co Ltd R5C832 PCIe IEEE 
1394 Controller [1180:e832] (rev 04)
        Subsystem: Lenovo Device [17aa:21ce]
        Kernel driver in use: firewire_ohci
        Kernel modules: firewire_ohci

** USB devices:
/:  Bus 001.Port 001: Dev 001, Class=root_hub, Driver=ehci-pci/3p, 480M
    ID 1d6b:0002 Linux Foundation 2.0 root hub
    |__ Port 001: Dev 002, If 0, Class=Hub, Driver=hub/8p, 480M
        ID 8087:0024 Intel Corp. Integrated Rate Matching Hub
        |__ Port 005: Dev 003, If 0, Class=Chip/SmartCard, Driver=[none], 12M
            ID 17ef:1003 Lenovo Integrated Smart Card Reader
/:  Bus 002.Port 001: Dev 001, Class=root_hub, Driver=ehci-pci/3p, 480M
    ID 1d6b:0002 Linux Foundation 2.0 root hub
    |__ Port 001: Dev 002, If 0, Class=Hub, Driver=hub/6p, 480M
        ID 8087:0024 Intel Corp. Integrated Rate Matching Hub
        |__ Port 006: Dev 004, If 0, Class=Video, Driver=uvcvideo, 480M
            ID 5986:02d5 Bison Electronics Inc. Integrated Camera
        |__ Port 006: Dev 004, If 1, Class=Video, Driver=uvcvideo, 480M
            ID 5986:02d5 Bison Electronics Inc. Integrated Camera


-- System Information:
Debian Release: 13.6
  APT prefers stable-updates
  APT policy: (500, 'stable-updates'), (500, 'stable-security'), (500, 'stable')
Architecture: amd64 (x86_64)
Foreign Architectures: i386

Kernel: Linux 7.1.8+deb13-amd64 (SMP w/4 CPU threads; PREEMPT)
Kernel taint flags: TAINT_FIRMWARE_WORKAROUND, TAINT_OOT_MODULE, 
TAINT_UNSIGNED_MODULE
Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8), 
LANGUAGE=en_US:en
Shell: /bin/sh linked to /usr/bin/dash
Init: systemd (via /run/systemd/system)
LSM: AppArmor: enabled

Versions of packages linux-image-7.1.8+deb13-amd64 depends on:
ii  initramfs-tools [linux-initramfs-tool]  0.148.4
ii  linux-base                              4.12.1
ii  linux-base-7.1.8+deb13-amd64            7.1.8-1~bpo13+1
ii  linux-binary-7.1.8+deb13-amd64          7.1.8-1~bpo13+1
ii  linux-modules-7.1.8+deb13-amd64         7.1.8-1~bpo13+1

Versions of packages linux-image-7.1.8+deb13-amd64 recommends:
ii  apparmor  4.1.0-1

Versions of packages linux-image-7.1.8+deb13-amd64 suggests:
pn  debian-kernel-handbook  <none>
ii  firmware-linux-free     20241210-2
ii  grub-efi-amd64          2.12-9+deb13u2
pn  linux-doc-7.1           <none>

Versions of packages linux-image-7.1.8+deb13-amd64 is related to:
pn  firmware-amd-graphics      <none>
pn  firmware-atheros           <none>
pn  firmware-bnx2              <none>
pn  firmware-bnx2x             <none>
ii  firmware-brcm80211         20260622-1~bpo13+1
pn  firmware-cavium            <none>
pn  firmware-cirrus            <none>
ii  firmware-intel-graphics    20260622-1~bpo13+1
ii  firmware-intel-misc        20260622-1~bpo13+1
pn  firmware-intel-sound       <none>
pn  firmware-ipw2x00           <none>
pn  firmware-ivtv              <none>
ii  firmware-iwlwifi           20260622-1~bpo13+1
pn  firmware-libertas          <none>
pn  firmware-marvell-prestera  <none>
ii  firmware-mediatek          20260622-1~bpo13+1
ii  firmware-misc-nonfree      20260622-1~bpo13+1
pn  firmware-myricom           <none>
pn  firmware-netronome         <none>
pn  firmware-netxen            <none>
ii  firmware-nvidia-graphics   20260622-1~bpo13+1
pn  firmware-qcom-soc          <none>
pn  firmware-qlogic            <none>
pn  firmware-realtek           <none>
pn  firmware-samsung           <none>
pn  firmware-siano             <none>
pn  firmware-ti-connectivity   <none>
pn  xen-hypervisor             <none>

-- no debconf information
[  817.795201] CPU: 0 UID: 0 PID: 162 Comm: kworker/0:2 Tainted: G          IOE 
      7.1.8+deb13-amd64 #1 PREEMPT(lazy)  Debian 7.1.8-1~bpo13+1 
[  817.795205] Tainted: [I]=FIRMWARE_WORKAROUND, [O]=OOT_MODULE, 
[E]=UNSIGNED_MODULE
[  817.795206] Hardware name: LENOVO 4236MP9/4236MP9, BIOS 83ET82WW (1.52 ) 
06/04/2018
[  817.795208] Workqueue: events_freezable ieee80211_restart_work [mac80211]
[  817.795274] Call Trace:
[  817.795277]  <TASK>
[  817.795279]  dump_stack_lvl+0x5d/0x80
[  817.795287]  iwl_trans_pcie_send_hcmd+0x441/0x470 [iwlwifi]
[  817.795322]  ? __pfx_autoremove_wake_function+0x10/0x10
[  817.795326]  iwl_trans_send_cmd+0x3e/0xa0 [iwlwifi]
[  817.795352]  iwl_dvm_send_cmd_pdu+0x5a/0xb0 [iwldvm]
[  817.795363]  iwlagn_commit_rxon+0x6a9/0xdc0 [iwldvm]
[  817.795373]  ? iwlagn_set_rxon_chain+0x121/0x270 [iwldvm]
[  817.795381]  ? iwlagn_set_rxon_chain+0x121/0x270 [iwldvm]
[  817.795389]  ? iwlagn_bss_info_changed+0x1b3/0x5a0 [iwldvm]
[  817.795396]  iwlagn_bss_info_changed+0x1b3/0x5a0 [iwldvm]
[  817.795404]  ieee80211_bss_info_change_notify+0xe2/0x2e0 [mac80211]
[  817.795450]  ieee80211_reconfig+0x1315/0x1e70 [mac80211]
[  817.795512]  ? synchronize_rcu_expedited+0x1e4/0x220
[  817.795516]  ? __pfx_autoremove_wake_function+0x10/0x10
[  817.795519]  ieee80211_restart_work+0xf1/0x140 [mac80211]
[  817.795562]  process_one_work+0x198/0x390
[  817.795567]  worker_thread+0x1af/0x320
[  817.795570]  ? __pfx_worker_thread+0x10/0x10
[  817.795572]  kthread+0xe3/0x120
[  817.795575]  ? __pfx_kthread+0x10/0x10
[  817.795577]  ret_from_fork+0x2ba/0x340
[  817.795580]  ? __pfx_kthread+0x10/0x10
[  817.795581]  ret_from_fork_asm+0x1a/0x30
[  817.795585]  </TASK>
[  817.795586] iwlwifi 0000:03:00.0: Error clearing ASSOC_MSK on BSS (-5)
[  817.799732] iwlwifi 0000:03:00.0: Command REPLY_LEDS_CMD failed: FW Error
[  817.799797] iwlwifi 0000:03:00.0: Command REPLY_LEDS_CMD failed: FW Error
[  817.847894] iwlwifi 0000:03:00.0: Command REPLY_RXON failed: FW Error
[  817.847901] iwlwifi 0000:03:00.0: Error clearing ASSOC_MSK on BSS (-5)
[  817.916218] BUG: kernel NULL pointer dereference, address: 0000000000000000
[  817.916228] #PF: supervisor instruction fetch in kernel mode
[  817.916231] #PF: error_code(0x0010) - not-present page
[  817.916233] PGD 0 P4D 0 
[  817.916237] Oops: Oops: 0010 [#1] SMP PTI
[  817.916242] CPU: 3 UID: 0 PID: 0 Comm: swapper/3 Tainted: G          IOE     
  7.1.8+deb13-amd64 #1 PREEMPT(lazy)  Debian 7.1.8-1~bpo13+1 
[  817.916247] Tainted: [I]=FIRMWARE_WORKAROUND, [O]=OOT_MODULE, 
[E]=UNSIGNED_MODULE
[  817.916248] Hardware name: LENOVO 4236MP9/4236MP9, BIOS 83ET82WW (1.52 ) 
06/04/2018
[  817.916250] RIP: 0010:0x0
[  817.916275] Code: Unable to access opcode bytes at 0xffffffffffffffd6.
[  817.916276] RSP: 0018:ffffd291c019cf30 EFLAGS: 00010097
[  817.916279] RAX: 0000000000000000 RBX: ffffd291c019cf68 RCX: ffff8f2104356268
[  817.916281] RDX: 0000000000000000 RSI: ffff8f2160e95720 RDI: ffff8f2125bc1080
[  817.916283] RBP: ffff8f2125bc1100 R08: ffff8f2124858dc0 R09: 0000000000000001
[  817.916285] R10: 0000000000000000 R11: ffff8f221639d180 R12: ffff8f2125bc1080
[  817.916287] R13: ffff8f2124857948 R14: ffff8f2125bc10c0 R15: ffff8f2104356268
[  817.916289] FS:  0000000000000000(0000) GS:ffff8f225e893000(0000) 
knlGS:0000000000000000
[  817.916291] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  817.916293] CR2: ffffffffffffffd6 CR3: 0000000105ebe002 CR4: 00000000000626f0
[  817.916295] Call Trace:
[  817.916298]  <IRQ>
[  817.916302]  signal_irq_work+0x28a/0x570 [i915]
[  817.916460]  irq_work_run_list+0x53/0x90
[  817.916465]  irq_work_run+0x18/0x50
[  817.916468]  __sysvec_irq_work+0x1d/0xd0
[  817.916471]  sysvec_irq_work+0x6c/0x90
[  817.916475]  </IRQ>
[  817.916477]  <TASK>
[  817.916478]  asm_sysvec_irq_work+0x1a/0x20
[  817.916482] RIP: 0010:cpuidle_enter_state+0xd3/0x6c0
[  817.916485] Code: 00 00 e8 70 f7 2b ff e8 eb ee ff ff 49 89 c5 0f 1f 44 00 
00 31 ff e8 cc 05 2a ff 45 84 ff 0f 85 ba 01 00 00 fb 0f 1f 44 00 00 <45> 85 f6 
0f 88 37 02 00 00 4d 63 e6 49 83 fc 0a 0f 83 01 05 00 00
[  817.916487] RSP: 0018:ffffd291c00f7e58 EFLAGS: 00000246
[  817.916490] RAX: ffff8f225e893000 RBX: ffff8f22163bad40 RCX: 0000000000000000
[  817.916492] RDX: 000000be6f9ad05b RSI: 00000000335dc204 RDI: 0000000000000000
[  817.916493] RBP: ffffffffb7051500 R08: 0000000000004e20 R09: 7fffffffffffffff
[  817.916495] R10: 0000000000002710 R11: 0000000000000006 R12: 0000000000000001
[  817.916497] R13: 000000be6f9ad05b R14: 0000000000000001 R15: 0000000000000000
[  817.916501]  ? cpuidle_enter_state+0xc4/0x6c0
[  817.916504]  cpuidle_enter+0x2d/0x40
[  817.916507]  do_idle+0x13e/0x2a0
[  817.916511]  cpu_startup_entry+0x29/0x30
[  817.916513]  start_secondary+0x128/0x170
[  817.916517]  common_startup_64+0x13e/0x141
[  817.916521]  </TASK>
[  817.916523] Modules linked in: snd_seq_dummy snd_hrtimer snd_seq 
snd_seq_device tp_smapi(OE) thinkpad_ec(OE) rfcomm bnep snd_hda_codec_intelhdmi 
snd_hda_codec_hdmi snd_hda_codec_conexant snd_hda_codec_generic uvcvideo btusb 
btmtk videobuf2_vmalloc btrtl uvc intel_rapl_msr btbcm videobuf2_memops 
intel_rapl_common videobuf2_v4l2 btintel x86_pkg_temp_thermal binfmt_misc 
intel_powerclamp videodev bluetooth kvm_intel nls_ascii nls_cp437 
videobuf2_common vfat mc ecdh_generic fat iwldvm kvm i915 mac80211 mei_pxp 
libarc4 mei_hdcp mei_wdt irqbypass aesni_intel snd_hda_intel gf128mul 
snd_hda_codec rapl iwlwifi intel_cstate snd_hda_core think_lmi snd_intel_dspcfg 
drm_buddy intel_uncore pcspkr firmware_attributes_class snd_ctl_led wmi_bmof 
snd_intel_sdw_acpi ttm at24 snd_hwdep cfg80211 drm_display_helper thinkpad_acpi 
nvram cec snd_pcm rc_core sparse_keymap drm_client_lib rfkill snd_timer 
drm_kms_helper ac mei_me snd i2c_algo_bit mei soundcore button joydev evdev sg 
drm jc42 coretemp firewire_sbp2 efi_pstore configfs nfnetlink
[  817.916590]  zstd zram lz4hc_compress lz4_compress efivarfs ip_tables 
x_tables autofs4 ext4 crc16 mbcache jbd2 crc32c_cryptoapi sr_mod sd_mod cdrom 
sdhci_pci ahci iTCO_wdt libahci sdhci_uhs2 intel_pmc_bxt i2c_i801 watchdog 
libata psmouse video i2c_smbus sdhci ehci_pci ehci_hcd cqhci scsi_mod 
firewire_ohci e1000e usbcore firewire_core serio_raw lpc_ich mmc_core 
scsi_common crc_itu_t battery usb_common wmi
[  817.916625] CR2: 0000000000000000
[  817.916629] ---[ end trace 0000000000000000 ]---
[  818.650979] psmouse serio1: TouchPad at isa0060/serio1/input0 lost 
synchronization, throwing 4 bytes away.
[  818.755696] RIP: 0010:0x0
[  818.755732] Code: Unable to access opcode bytes at 0xffffffffffffffd6.
[  818.755735] RSP: 0018:ffffd291c019cf30 EFLAGS: 00010097
[  818.755740] RAX: 0000000000000000 RBX: ffffd291c019cf68 RCX: ffff8f2104356268
[  818.755743] RDX: 0000000000000000 RSI: ffff8f2160e95720 RDI: ffff8f2125bc1080
[  818.755746] RBP: ffff8f2125bc1100 R08: ffff8f2124858dc0 R09: 0000000000000001
[  818.755749] R10: 0000000000000000 R11: ffff8f221639d180 R12: ffff8f2125bc1080
[  818.755752] R13: ffff8f2124857948 R14: ffff8f2125bc10c0 R15: ffff8f2104356268
[  818.755755] FS:  0000000000000000(0000) GS:ffff8f225e893000(0000) 
knlGS:0000000000000000
[  818.755758] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  818.755761] CR2: ffffffffffffffd6 CR3: 0000000127e2a003 CR4: 00000000000626f0
[  818.755765] Kernel panic - not syncing: Fatal exception in interrupt
[  818.755780] Kernel Offset: 0x33c00000 from 0xffffffff81000000 (relocation 
range: 0xffffffff80000000-0xffffffffbfffffff)

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