Bug#900821: Found working and failing 5.10 versions and got kernel crash, report from BSP Tilburg (https://deb.li/iiOID)

[Diederik de Haas <didi.debian@cknow.org>]

user debian-release@lists.debian.org
usertag 900821 + bsp-2022-11-nl-tilburg
found 900821 5.10.70-1
fixed 900821 5.10.84-1
thanks

We have/had a BSP in Tilburg today and I went to work on this bug.
With success :-)

I first created a new Bullseye VM with virt-manager using the 
debian-11.5.0-amd64-netinst.iso installation media and installed only
the Standard System Utilities and SSH Server.
Upon reboot I installed vim (ofc) and followed the excellent instructions
from OP and installed the packages:
"apt-get install samba apache2 cifs-utils"

Then I added the `[ftp]` block to /etc/samba/smb.conf and created the 
`/srv/ftp/100Mzero` file consisting of only zero's.
As I'd be rebooting often, I made mounting easy by adding to `/etc/fstab/`:
//localhost/ftp /var/www/html   cifs    username=debian,password=root,noauto,user       0       0

Then I created the following script:
```
debian@debian-bullseye:~$ cat bug900821 
#!/bin/sh
#/srv/ftp/100Mzero
SHA256_STORED="20492a4d0d84f8beb1767f6616229f85d44c2827b64bdbfb260ee12fa1109e0e"

echo "sha256sum should be:"
echo "   $SHA256_STORED"
echo ""

i=0
while [ $i -ne 100 ]
do
        i=$((i + 1))
        #printf "$i "
        printf ". "
        SHA256_CALC="$(wget http://localhost/100Mzero -O - 2>/dev/null | sha256sum | awk '{ print $1 }')"
        if [ "$SHA256_CALC" != "$SHA256_STORED" ] ; then
               printf "\nBug 900821 triggered! Calculated SHA256: %s\n" "$SHA256_CALC"
               exit 1
        fi
done
printf "\nTest completed\n"
```

I tried it out on the installed kernel, 5.10.149-2 aka 5.10.0-19-amd64, and 
found out it all worked as expected. Idem ditto for 5.10.140-1/5.10.0-18-amd64.
I then tried 5.10.28-1/5.10.0-6-amd64 and got a kernel crash \o/
I then went on to narrow down which version worked and which next lower version
did fail and it turned out 5.10.70-1 failed, while 5.10.84-1 succeeded.

What was both odd and interesting was what happened during a crash.
With 5.10.28-1 I got this:
debian@debian-bullseye:~$ ./bug900821 
sha256sum should be:
   20492a4d0d84f8beb1767f6616229f85d44c2827b64bdbfb260ee12fa1109e0e

. 
Message from syslogd@debian-bullseye at Nov 19 18:43:22 ...
 kernel:[   40.266711] usercopy: Kernel memory exposure attempt detected from SLUB object 'vm_area_struct' (offset 0, size 117)!

That killed my SSH session. I don't know if it was the case each time, but
at least twice I was able to directly log in to the VM ... and I was able 
to secure `dmesg` which shows the kernel crash :-)
I have attached both that dmesg output as the Konsole output from my 
BSP session wrt this bug.

I don't know if it's useful to do a (lengthy!) git-bisect session as I'm quite
sure the issue is fixed.
I've updated the metadata, but I haven't closed it (yet?).

Cheers,
  Diederik

[    0.000000] Linux version 5.10.0-9-amd64 (debian-kernel@lists.debian.org) (gcc-10 (Debian 10.2.1-6) 10.2.1 20210110, GNU ld (GNU Binutils for Debian) 2.35.2) #1 SMP Debian 5.10.70-1 (2021-09-30)
[    0.000000] Command line: BOOT_IMAGE=/boot/vmlinuz-5.10.0-9-amd64 root=UUID=a7893f33-27c0-4b56-8d49-b0e98db7f84a ro quiet
[    0.000000] x86/fpu: Supporting XSAVE feature 0x001: 'x87 floating point registers'
[    0.000000] x86/fpu: Supporting XSAVE feature 0x002: 'SSE registers'
[    0.000000] x86/fpu: Supporting XSAVE feature 0x004: 'AVX registers'
[    0.000000] x86/fpu: Supporting XSAVE feature 0x008: 'MPX bounds registers'
[    0.000000] x86/fpu: Supporting XSAVE feature 0x010: 'MPX CSR'
[    0.000000] x86/fpu: xstate_offset[2]:  576, xstate_sizes[2]:  256
[    0.000000] x86/fpu: xstate_offset[3]:  832, xstate_sizes[3]:   64
[    0.000000] x86/fpu: xstate_offset[4]:  896, xstate_sizes[4]:   64
[    0.000000] x86/fpu: Enabled xstate features 0x1f, context size is 960 bytes, using 'compacted' format.
[    0.000000] BIOS-provided physical RAM map:
[    0.000000] BIOS-e820: [mem 0x0000000000000000-0x000000000009fbff] usable
[    0.000000] BIOS-e820: [mem 0x000000000009fc00-0x000000000009ffff] reserved
[    0.000000] BIOS-e820: [mem 0x00000000000f0000-0x00000000000fffff] reserved
[    0.000000] BIOS-e820: [mem 0x0000000000100000-0x000000003ffdbfff] usable
[    0.000000] BIOS-e820: [mem 0x000000003ffdc000-0x000000003fffffff] reserved
[    0.000000] BIOS-e820: [mem 0x00000000b0000000-0x00000000bfffffff] reserved
[    0.000000] BIOS-e820: [mem 0x00000000fed1c000-0x00000000fed1ffff] reserved
[    0.000000] BIOS-e820: [mem 0x00000000feffc000-0x00000000feffffff] reserved
[    0.000000] BIOS-e820: [mem 0x00000000fffc0000-0x00000000ffffffff] reserved
[    0.000000] NX (Execute Disable) protection: active
[    0.000000] SMBIOS 2.8 present.
[    0.000000] DMI: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.0-debian-1.16.0-4 04/01/2014
[    0.000000] Hypervisor detected: KVM
[    0.000000] kvm-clock: Using msrs 4b564d01 and 4b564d00
[    0.000000] kvm-clock: cpu 0, msr 2c4b3001, primary cpu clock
[    0.000000] kvm-clock: using sched offset of 1463003892121 cycles
[    0.000005] clocksource: kvm-clock: mask: 0xffffffffffffffff max_cycles: 0x1cd42e4dffb, max_idle_ns: 881590591483 ns
[    0.000012] tsc: Detected 2903.998 MHz processor
[    0.000564] e820: update [mem 0x00000000-0x00000fff] usable ==> reserved
[    0.000566] e820: remove [mem 0x000a0000-0x000fffff] usable
[    0.000571] last_pfn = 0x3ffdc max_arch_pfn = 0x400000000
[    0.000603] MTRR default type: write-back
[    0.000604] MTRR fixed ranges enabled:
[    0.000605]   00000-9FFFF write-back
[    0.000605]   A0000-BFFFF uncachable
[    0.000606]   C0000-FFFFF write-protect
[    0.000606] MTRR variable ranges enabled:
[    0.000607]   0 base 00C0000000 mask 7FC0000000 uncachable
[    0.000608]   1 disabled
[    0.000608]   2 disabled
[    0.000609]   3 disabled
[    0.000609]   4 disabled
[    0.000610]   5 disabled
[    0.000610]   6 disabled
[    0.000610]   7 disabled
[    0.000622] x86/PAT: Configuration [0-7]: WB  WC  UC- UC  WB  WP  UC- WT  
[    0.007577] found SMP MP-table at [mem 0x000f5b70-0x000f5b7f]
[    0.007784] Using GB pages for direct mapping
[    0.007920] RAMDISK: [mem 0x34a33000-0x36510fff]
[    0.007931] ACPI: Early table checksum verification disabled
[    0.007946] ACPI: RSDP 0x00000000000F5970 000014 (v00 BOCHS )
[    0.007953] ACPI: RSDT 0x000000003FFE2A3F 000034 (v01 BOCHS  BXPC     00000001 BXPC 00000001)
[    0.007963] ACPI: FACP 0x000000003FFE2867 0000F4 (v03 BOCHS  BXPC     00000001 BXPC 00000001)
[    0.007967] ACPI: DSDT 0x000000003FFE0040 002827 (v01 BOCHS  BXPC     00000001 BXPC 00000001)
[    0.007970] ACPI: FACS 0x000000003FFE0000 000040
[    0.007973] ACPI: APIC 0x000000003FFE295B 000080 (v01 BOCHS  BXPC     00000001 BXPC 00000001)
[    0.007976] ACPI: MCFG 0x000000003FFE29DB 00003C (v01 BOCHS  BXPC     00000001 BXPC 00000001)
[    0.007978] ACPI: WAET 0x000000003FFE2A17 000028 (v01 BOCHS  BXPC     00000001 BXPC 00000001)
[    0.007981] ACPI: Reserving FACP table memory at [mem 0x3ffe2867-0x3ffe295a]
[    0.007981] ACPI: Reserving DSDT table memory at [mem 0x3ffe0040-0x3ffe2866]
[    0.007982] ACPI: Reserving FACS table memory at [mem 0x3ffe0000-0x3ffe003f]
[    0.007982] ACPI: Reserving APIC table memory at [mem 0x3ffe295b-0x3ffe29da]
[    0.007983] ACPI: Reserving MCFG table memory at [mem 0x3ffe29db-0x3ffe2a16]
[    0.007984] ACPI: Reserving WAET table memory at [mem 0x3ffe2a17-0x3ffe2a3e]
[    0.008010] ACPI: Local APIC address 0xfee00000
[    0.008272] No NUMA configuration found
[    0.008273] Faking a node at [mem 0x0000000000000000-0x000000003ffdbfff]
[    0.008287] NODE_DATA(0) allocated [mem 0x3ffb2000-0x3ffdbfff]
[    0.008542] Zone ranges:
[    0.008543]   DMA      [mem 0x0000000000001000-0x0000000000ffffff]
[    0.008544]   DMA32    [mem 0x0000000001000000-0x000000003ffdbfff]
[    0.008545]   Normal   empty
[    0.008545]   Device   empty
[    0.008546] Movable zone start for each node
[    0.008548] Early memory node ranges
[    0.008549]   node   0: [mem 0x0000000000001000-0x000000000009efff]
[    0.008550]   node   0: [mem 0x0000000000100000-0x000000003ffdbfff]
[    0.008552] Initmem setup node 0 [mem 0x0000000000001000-0x000000003ffdbfff]
[    0.008553] On node 0 totalpages: 262010
[    0.008556]   DMA zone: 64 pages used for memmap
[    0.008557]   DMA zone: 21 pages reserved
[    0.008558]   DMA zone: 3998 pages, LIFO batch:0
[    0.008559]   DMA32 zone: 4032 pages used for memmap
[    0.008560]   DMA32 zone: 258012 pages, LIFO batch:63
[    0.008563] On node 0, zone DMA: 1 pages in unavailable ranges
[    0.008589] On node 0, zone DMA: 97 pages in unavailable ranges
[    0.008936] On node 0, zone DMA32: 36 pages in unavailable ranges
[    0.010321] ACPI: PM-Timer IO Port: 0x608
[    0.010323] ACPI: Local APIC address 0xfee00000
[    0.010337] ACPI: LAPIC_NMI (acpi_id[0xff] dfl dfl lint[0x1])
[    0.010370] IOAPIC[0]: apic_id 0, version 17, address 0xfec00000, GSI 0-23
[    0.010372] ACPI: INT_SRC_OVR (bus 0 bus_irq 0 global_irq 2 dfl dfl)
[    0.010373] ACPI: INT_SRC_OVR (bus 0 bus_irq 5 global_irq 5 high level)
[    0.010374] ACPI: INT_SRC_OVR (bus 0 bus_irq 9 global_irq 9 high level)
[    0.010377] ACPI: INT_SRC_OVR (bus 0 bus_irq 10 global_irq 10 high level)
[    0.010378] ACPI: INT_SRC_OVR (bus 0 bus_irq 11 global_irq 11 high level)
[    0.010379] ACPI: IRQ0 used by override.
[    0.010379] ACPI: IRQ5 used by override.
[    0.010380] ACPI: IRQ9 used by override.
[    0.010380] ACPI: IRQ10 used by override.
[    0.010381] ACPI: IRQ11 used by override.
[    0.010384] Using ACPI (MADT) for SMP configuration information
[    0.010389] TSC deadline timer available
[    0.010395] smpboot: Allowing 2 CPUs, 0 hotplug CPUs
[    0.010409] kvm-guest: KVM setup pv remote TLB flush
[    0.010425] kvm-guest: setup PV sched yield
[    0.010442] PM: hibernation: Registered nosave memory: [mem 0x00000000-0x00000fff]
[    0.010442] PM: hibernation: Registered nosave memory: [mem 0x0009f000-0x0009ffff]
[    0.010443] PM: hibernation: Registered nosave memory: [mem 0x000a0000-0x000effff]
[    0.010443] PM: hibernation: Registered nosave memory: [mem 0x000f0000-0x000fffff]
[    0.010444] [mem 0x40000000-0xafffffff] available for PCI devices
[    0.010445] Booting paravirtualized kernel on KVM
[    0.010452] clocksource: refined-jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 7645519600211568 ns
[    0.013520] setup_percpu: NR_CPUS:8192 nr_cpumask_bits:2 nr_cpu_ids:2 nr_node_ids:1
[    0.013667] percpu: Embedded 54 pages/cpu s184152 r8192 d28840 u1048576
[    0.013672] pcpu-alloc: s184152 r8192 d28840 u1048576 alloc=1*2097152
[    0.013673] pcpu-alloc: [0] 0 1 
[    0.013701] kvm-guest: KVM setup async PF for cpu 0
[    0.013706] kvm-guest: stealtime: cpu 0, msr 3ec18500
[    0.013708] kvm-guest: PV spinlocks enabled
[    0.013712] PV qspinlock hash table entries: 256 (order: 0, 4096 bytes, linear)
[    0.013721] Built 1 zonelists, mobility grouping on.  Total pages: 257893
[    0.013721] Policy zone: DMA32
[    0.013722] Kernel command line: BOOT_IMAGE=/boot/vmlinuz-5.10.0-9-amd64 root=UUID=a7893f33-27c0-4b56-8d49-b0e98db7f84a ro quiet
[    0.013788] Dentry cache hash table entries: 131072 (order: 8, 1048576 bytes, linear)
[    0.013806] Inode-cache hash table entries: 65536 (order: 7, 524288 bytes, linear)
[    0.013862] mem auto-init: stack:off, heap alloc:on, heap free:off
[    0.015170] Memory: 261408K/1048040K available (12295K kernel code, 2544K rwdata, 7560K rodata, 2392K init, 3700K bss, 81056K reserved, 0K cma-reserved)
[    0.015185] random: get_random_u64 called from __kmem_cache_create+0x2a/0x540 with crng_init=0
[    0.015278] SLUB: HWalign=64, Order=0-3, MinObjects=0, CPUs=2, Nodes=1
[    0.015291] Kernel/User page tables isolation: enabled
[    0.015307] ftrace: allocating 36426 entries in 143 pages
[    0.026846] ftrace: allocated 143 pages with 5 groups
[    0.026933] rcu: Hierarchical RCU implementation.
[    0.026934] rcu: 	RCU restricting CPUs from NR_CPUS=8192 to nr_cpu_ids=2.
[    0.026934] 	Rude variant of Tasks RCU enabled.
[    0.026935] 	Tracing variant of Tasks RCU enabled.
[    0.026936] rcu: RCU calculated value of scheduler-enlistment delay is 25 jiffies.
[    0.026936] rcu: Adjusting geometry for rcu_fanout_leaf=16, nr_cpu_ids=2
[    0.029345] NR_IRQS: 524544, nr_irqs: 440, preallocated irqs: 16
[    0.029645] random: crng done (trusting CPU's manufacturer)
[    0.043445] Console: colour VGA+ 80x25
[    0.043453] printk: console [tty0] enabled
[    0.043467] ACPI: Core revision 20200925
[    0.043498] APIC: Switch to symmetric I/O mode setup
[    0.043756] x2apic enabled
[    0.044043] Switched APIC routing to physical x2apic.
[    0.044045] kvm-guest: setup PV IPIs
[    0.044940] clocksource: tsc-early: mask: 0xffffffffffffffff max_cycles: 0x29dc03c1beb, max_idle_ns: 440795205215 ns
[    0.044943] Calibrating delay loop (skipped) preset value.. 5807.99 BogoMIPS (lpj=11615992)
[    0.044945] pid_max: default: 32768 minimum: 301
[    0.044970] LSM: Security Framework initializing
[    0.044978] Yama: disabled by default; enable with sysctl kernel.yama.*
[    0.044997] AppArmor: AppArmor initialized
[    0.044998] TOMOYO Linux initialized
[    0.045009] Mount-cache hash table entries: 2048 (order: 2, 16384 bytes, linear)
[    0.045011] Mountpoint-cache hash table entries: 2048 (order: 2, 16384 bytes, linear)
[    0.045300] x86/cpu: User Mode Instruction Prevention (UMIP) activated
[    0.045453] Last level iTLB entries: 4KB 0, 2MB 0, 4MB 0
[    0.045453] Last level dTLB entries: 4KB 0, 2MB 0, 4MB 0, 1GB 0
[    0.045474] Spectre V1 : Mitigation: usercopy/swapgs barriers and __user pointer sanitization
[    0.045476] Spectre V2 : Mitigation: Full generic retpoline
[    0.045477] Spectre V2 : Spectre v2 / SpectreRSB mitigation: Filling RSB on context switch
[    0.045477] Spectre V2 : Enabling Restricted Speculation for firmware calls
[    0.045480] Spectre V2 : mitigation: Enabling conditional Indirect Branch Prediction Barrier
[    0.045480] Speculative Store Bypass: Mitigation: Speculative Store Bypass disabled via prctl and seccomp
[    0.045486] SRBDS: Unknown: Dependent on hypervisor status
[    0.045487] MDS: Mitigation: Clear CPU buffers
[    0.045740] Freeing SMP alternatives memory: 32K
[    0.047775] smpboot: CPU0: Intel(R) Core(TM) i7-7600U CPU @ 2.80GHz (family: 0x6, model: 0x8e, stepping: 0x9)
[    0.047924] Performance Events: Skylake events, full-width counters, Intel PMU driver.
[    0.047958] ... version:                2
[    0.047958] ... bit width:              48
[    0.047958] ... generic registers:      4
[    0.047959] ... value mask:             0000ffffffffffff
[    0.047959] ... max period:             00007fffffffffff
[    0.047960] ... fixed-purpose events:   3
[    0.047960] ... event mask:             000000070000000f
[    0.048056] rcu: Hierarchical SRCU implementation.
[    0.048364] smp: Bringing up secondary CPUs ...
[    0.048430] x86: Booting SMP configuration:
[    0.048431] .... node  #0, CPUs:      #1
[    0.019454] kvm-clock: cpu 1, msr 2c4b3041, secondary cpu clock
[    0.019454] smpboot: CPU 1 Converting physical 0 to logical die 1
[    0.048971] kvm-guest: KVM setup async PF for cpu 1
[    0.048975] kvm-guest: stealtime: cpu 1, msr 3ed18500
[    0.049014] smp: Brought up 1 node, 2 CPUs
[    0.049015] smpboot: Max logical packages: 2
[    0.049016] smpboot: Total of 2 processors activated (11615.99 BogoMIPS)
[    0.050801] node 0 deferred pages initialised in 0ms
[    0.050834] devtmpfs: initialized
[    0.050834] x86/mm: Memory block size: 128MB
[    0.050834] clocksource: jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 7645041785100000 ns
[    0.050834] futex hash table entries: 512 (order: 3, 32768 bytes, linear)
[    0.050834] pinctrl core: initialized pinctrl subsystem
[    0.050834] NET: Registered protocol family 16
[    0.050834] audit: initializing netlink subsys (disabled)
[    0.050834] thermal_sys: Registered thermal governor 'fair_share'
[    0.050834] thermal_sys: Registered thermal governor 'bang_bang'
[    0.050834] thermal_sys: Registered thermal governor 'step_wise'
[    0.050834] thermal_sys: Registered thermal governor 'user_space'
[    0.050834] thermal_sys: Registered thermal governor 'power_allocator'
[    0.050834] cpuidle: using governor ladder
[    0.050834] cpuidle: using governor menu
[    0.050834] ACPI: bus type PCI registered
[    0.050834] acpiphp: ACPI Hot Plug PCI Controller Driver version: 0.5
[    0.050834] PCI: MMCONFIG for domain 0000 [bus 00-ff] at [mem 0xb0000000-0xbfffffff] (base 0xb0000000)
[    0.050834] PCI: MMCONFIG at [mem 0xb0000000-0xbfffffff] reserved in E820
[    0.050834] PCI: Using configuration type 1 for base access
[    0.052954] audit: type=2000 audit(1668880724.831:1): state=initialized audit_enabled=0 res=1
[    0.053106] Kprobes globally optimized
[    0.053110] HugeTLB registered 1.00 GiB page size, pre-allocated 0 pages
[    0.053110] HugeTLB registered 2.00 MiB page size, pre-allocated 0 pages
[    0.145741] ACPI: Added _OSI(Module Device)
[    0.145741] ACPI: Added _OSI(Processor Device)
[    0.145741] ACPI: Added _OSI(3.0 _SCP Extensions)
[    0.145741] ACPI: Added _OSI(Processor Aggregator Device)
[    0.145741] ACPI: Added _OSI(Linux-Dell-Video)
[    0.145741] ACPI: Added _OSI(Linux-Lenovo-NV-HDMI-Audio)
[    0.145741] ACPI: Added _OSI(Linux-HPI-Hybrid-Graphics)
[    0.145869] ACPI: 1 ACPI AML tables successfully acquired and loaded
[    0.146436] ACPI: Interpreter enabled
[    0.146444] ACPI: (supports S0 S5)
[    0.146445] ACPI: Using IOAPIC for interrupt routing
[    0.146462] PCI: Using host bridge windows from ACPI; if necessary, use "pci=nocrs" and report a bug
[    0.146547] ACPI: Enabled 2 GPEs in block 00 to 3F
[    0.150423] ACPI: PCI Root Bridge [PCI0] (domain 0000 [bus 00-ff])
[    0.150430] acpi PNP0A08:00: _OSC: OS supports [ExtendedConfig ASPM ClockPM Segments MSI HPX-Type3]
[    0.150483] acpi PNP0A08:00: _OSC: platform does not support [PCIeHotplug LTR]
[    0.150522] acpi PNP0A08:00: _OSC: OS now controls [SHPCHotplug PME AER PCIeCapability]
[    0.150789] PCI host bridge to bus 0000:00
[    0.150791] pci_bus 0000:00: root bus resource [io  0x0000-0x0cf7 window]
[    0.150792] pci_bus 0000:00: root bus resource [io  0x0d00-0xffff window]
[    0.150792] pci_bus 0000:00: root bus resource [mem 0x000a0000-0x000bffff window]
[    0.150793] pci_bus 0000:00: root bus resource [mem 0x40000000-0xafffffff window]
[    0.150794] pci_bus 0000:00: root bus resource [mem 0xc0000000-0xfebfffff window]
[    0.150795] pci_bus 0000:00: root bus resource [mem 0x100000000-0x8ffffffff window]
[    0.150796] pci_bus 0000:00: root bus resource [bus 00-ff]
[    0.150846] pci 0000:00:00.0: [8086:29c0] type 00 class 0x060000
[    0.151403] pci 0000:00:01.0: [1af4:1050] type 00 class 0x030000
[    0.154389] pci 0000:00:01.0: reg 0x10: [mem 0xfa800000-0xfaffffff pref]
[    0.159837] pci 0000:00:01.0: reg 0x18: [mem 0xfcc00000-0xfcc03fff 64bit pref]
[    0.162374] pci 0000:00:01.0: reg 0x20: [mem 0xfea14000-0xfea14fff]
[    0.167673] pci 0000:00:01.0: reg 0x30: [mem 0xfea00000-0xfea0ffff pref]
[    0.168537] pci 0000:00:02.0: [1b36:000c] type 01 class 0x060400
[    0.169937] pci 0000:00:02.0: reg 0x10: [mem 0xfea15000-0xfea15fff]
[    0.176274] pci 0000:00:02.1: [1b36:000c] type 01 class 0x060400
[    0.177342] pci 0000:00:02.1: reg 0x10: [mem 0xfea16000-0xfea16fff]
[    0.180156] pci 0000:00:02.2: [1b36:000c] type 01 class 0x060400
[    0.181370] pci 0000:00:02.2: reg 0x10: [mem 0xfea17000-0xfea17fff]
[    0.187263] pci 0000:00:02.3: [1b36:000c] type 01 class 0x060400
[    0.188950] pci 0000:00:02.3: reg 0x10: [mem 0xfea18000-0xfea18fff]
[    0.192206] pci 0000:00:02.4: [1b36:000c] type 01 class 0x060400
[    0.193407] pci 0000:00:02.4: reg 0x10: [mem 0xfea19000-0xfea19fff]
[    0.196373] pci 0000:00:02.5: [1b36:000c] type 01 class 0x060400
[    0.200105] pci 0000:00:02.5: reg 0x10: [mem 0xfea1a000-0xfea1afff]
[    0.202638] pci 0000:00:02.6: [1b36:000c] type 01 class 0x060400
[    0.203980] pci 0000:00:02.6: reg 0x10: [mem 0xfea1b000-0xfea1bfff]
[    0.206582] pci 0000:00:02.7: [1b36:000c] type 01 class 0x060400
[    0.208648] pci 0000:00:02.7: reg 0x10: [mem 0xfea1c000-0xfea1cfff]
[    0.213919] pci 0000:00:03.0: [1b36:000c] type 01 class 0x060400
[    0.215264] pci 0000:00:03.0: reg 0x10: [mem 0xfea1d000-0xfea1dfff]
[    0.217952] pci 0000:00:03.1: [1b36:000c] type 01 class 0x060400
[    0.219451] pci 0000:00:03.1: reg 0x10: [mem 0xfea1e000-0xfea1efff]
[    0.224635] pci 0000:00:03.2: [1b36:000c] type 01 class 0x060400
[    0.226026] pci 0000:00:03.2: reg 0x10: [mem 0xfea1f000-0xfea1ffff]
[    0.228839] pci 0000:00:03.3: [1b36:000c] type 01 class 0x060400
[    0.230007] pci 0000:00:03.3: reg 0x10: [mem 0xfea20000-0xfea20fff]
[    0.232810] pci 0000:00:03.4: [1b36:000c] type 01 class 0x060400
[    0.235418] pci 0000:00:03.4: reg 0x10: [mem 0xfea21000-0xfea21fff]
[    0.239330] pci 0000:00:03.5: [1b36:000c] type 01 class 0x060400
[    0.240803] pci 0000:00:03.5: reg 0x10: [mem 0xfea22000-0xfea22fff]
[    0.243511] pci 0000:00:1b.0: [8086:293e] type 00 class 0x040300
[    0.244128] pci 0000:00:1b.0: reg 0x10: [mem 0xfea10000-0xfea13fff]
[    0.249758] pci 0000:00:1f.0: [8086:2918] type 00 class 0x060100
[    0.250202] pci 0000:00:1f.0: quirk: [io  0x0600-0x067f] claimed by ICH6 ACPI/GPIO/TCO
[    0.250421] pci 0000:00:1f.2: [8086:2922] type 00 class 0x010601
[    0.254077] pci 0000:00:1f.2: reg 0x20: [io  0xc040-0xc05f]
[    0.254826] pci 0000:00:1f.2: reg 0x24: [mem 0xfea23000-0xfea23fff]
[    0.256010] pci 0000:00:1f.3: [8086:2930] type 00 class 0x0c0500
[    0.258234] pci 0000:00:1f.3: reg 0x20: [io  0x0700-0x073f]
[    0.262031] acpiphp: Slot [0] registered
[    0.262188] pci 0000:01:00.0: [1af4:1041] type 00 class 0x020000
[    0.263848] pci 0000:01:00.0: reg 0x14: [mem 0xfe840000-0xfe840fff]
[    0.266210] pci 0000:01:00.0: reg 0x20: [mem 0xfca00000-0xfca03fff 64bit pref]
[    0.266982] pci 0000:01:00.0: reg 0x30: [mem 0xfe800000-0xfe83ffff pref]
[    0.267992] pci 0000:00:02.0: PCI bridge to [bus 01]
[    0.268022] pci 0000:00:02.0:   bridge window [mem 0xfe800000-0xfe9fffff]
[    0.268051] pci 0000:00:02.0:   bridge window [mem 0xfca00000-0xfcbfffff 64bit pref]
[    0.268677] acpiphp: Slot [0-2] registered
[    0.268782] pci 0000:02:00.0: [1b36:000d] type 00 class 0x0c0330
[    0.269270] pci 0000:02:00.0: reg 0x10: [mem 0xfe600000-0xfe603fff 64bit]
[    0.273982] pci 0000:00:02.1: PCI bridge to [bus 02]
[    0.274014] pci 0000:00:02.1:   bridge window [mem 0xfe600000-0xfe7fffff]
[    0.274043] pci 0000:00:02.1:   bridge window [mem 0xfc800000-0xfc9fffff 64bit pref]
[    0.274719] acpiphp: Slot [0-3] registered
[    0.274868] pci 0000:03:00.0: [1af4:1043] type 00 class 0x078000
[    0.276780] pci 0000:03:00.0: reg 0x14: [mem 0xfe400000-0xfe400fff]
[    0.279018] pci 0000:03:00.0: reg 0x20: [mem 0xfc600000-0xfc603fff 64bit pref]
[    0.280849] pci 0000:00:02.2: PCI bridge to [bus 03]
[    0.280878] pci 0000:00:02.2:   bridge window [mem 0xfe400000-0xfe5fffff]
[    0.280907] pci 0000:00:02.2:   bridge window [mem 0xfc600000-0xfc7fffff 64bit pref]
[    0.281372] acpiphp: Slot [0-4] registered
[    0.281519] pci 0000:04:00.0: [1af4:1042] type 00 class 0x010000
[    0.284652] pci 0000:04:00.0: reg 0x14: [mem 0xfe200000-0xfe200fff]
[    0.286993] pci 0000:04:00.0: reg 0x20: [mem 0xfc400000-0xfc403fff 64bit pref]
[    0.288802] pci 0000:00:02.3: PCI bridge to [bus 04]
[    0.288831] pci 0000:00:02.3:   bridge window [mem 0xfe200000-0xfe3fffff]
[    0.288859] pci 0000:00:02.3:   bridge window [mem 0xfc400000-0xfc5fffff 64bit pref]
[    0.289354] acpiphp: Slot [0-5] registered
[    0.289493] pci 0000:05:00.0: [1af4:1045] type 00 class 0x00ff00
[    0.291753] pci 0000:05:00.0: reg 0x20: [mem 0xfc200000-0xfc203fff 64bit pref]
[    0.293090] pci 0000:00:02.4: PCI bridge to [bus 05]
[    0.293119] pci 0000:00:02.4:   bridge window [mem 0xfe000000-0xfe1fffff]
[    0.293147] pci 0000:00:02.4:   bridge window [mem 0xfc200000-0xfc3fffff 64bit pref]
[    0.293772] acpiphp: Slot [0-6] registered
[    0.293911] pci 0000:06:00.0: [1af4:1044] type 00 class 0x00ff00
[    0.298113] pci 0000:06:00.0: reg 0x20: [mem 0xfc000000-0xfc003fff 64bit pref]
[    0.299480] pci 0000:00:02.5: PCI bridge to [bus 06]
[    0.299510] pci 0000:00:02.5:   bridge window [mem 0xfde00000-0xfdffffff]
[    0.299538] pci 0000:00:02.5:   bridge window [mem 0xfc000000-0xfc1fffff 64bit pref]
[    0.300213] acpiphp: Slot [0-7] registered
[    0.300231] pci 0000:00:02.6: PCI bridge to [bus 07]
[    0.300260] pci 0000:00:02.6:   bridge window [mem 0xfdc00000-0xfddfffff]
[    0.300287] pci 0000:00:02.6:   bridge window [mem 0xfbe00000-0xfbffffff 64bit pref]
[    0.300909] acpiphp: Slot [0-8] registered
[    0.300926] pci 0000:00:02.7: PCI bridge to [bus 08]
[    0.300953] pci 0000:00:02.7:   bridge window [mem 0xfda00000-0xfdbfffff]
[    0.300981] pci 0000:00:02.7:   bridge window [mem 0xfbc00000-0xfbdfffff 64bit pref]
[    0.301590] acpiphp: Slot [0-9] registered
[    0.301607] pci 0000:00:03.0: PCI bridge to [bus 09]
[    0.301635] pci 0000:00:03.0:   bridge window [mem 0xfd800000-0xfd9fffff]
[    0.301663] pci 0000:00:03.0:   bridge window [mem 0xfba00000-0xfbbfffff 64bit pref]
[    0.302496] acpiphp: Slot [0-10] registered
[    0.302513] pci 0000:00:03.1: PCI bridge to [bus 0a]
[    0.302542] pci 0000:00:03.1:   bridge window [mem 0xfd600000-0xfd7fffff]
[    0.302570] pci 0000:00:03.1:   bridge window [mem 0xfb800000-0xfb9fffff 64bit pref]
[    0.303213] acpiphp: Slot [0-11] registered
[    0.303230] pci 0000:00:03.2: PCI bridge to [bus 0b]
[    0.303259] pci 0000:00:03.2:   bridge window [mem 0xfd400000-0xfd5fffff]
[    0.303287] pci 0000:00:03.2:   bridge window [mem 0xfb600000-0xfb7fffff 64bit pref]
[    0.303892] acpiphp: Slot [0-12] registered
[    0.303909] pci 0000:00:03.3: PCI bridge to [bus 0c]
[    0.303938] pci 0000:00:03.3:   bridge window [mem 0xfd200000-0xfd3fffff]
[    0.303965] pci 0000:00:03.3:   bridge window [mem 0xfb400000-0xfb5fffff 64bit pref]
[    0.304565] acpiphp: Slot [0-13] registered
[    0.304581] pci 0000:00:03.4: PCI bridge to [bus 0d]
[    0.304610] pci 0000:00:03.4:   bridge window [mem 0xfd000000-0xfd1fffff]
[    0.304637] pci 0000:00:03.4:   bridge window [mem 0xfb200000-0xfb3fffff 64bit pref]
[    0.305108] acpiphp: Slot [0-14] registered
[    0.305125] pci 0000:00:03.5: PCI bridge to [bus 0e]
[    0.305154] pci 0000:00:03.5:   bridge window [mem 0xfce00000-0xfcffffff]
[    0.305182] pci 0000:00:03.5:   bridge window [mem 0xfb000000-0xfb1fffff 64bit pref]
[    0.314883] ACPI: PCI Interrupt Link [LNKA] (IRQs 5 *10 11)
[    0.314951] ACPI: PCI Interrupt Link [LNKB] (IRQs 5 *10 11)
[    0.315012] ACPI: PCI Interrupt Link [LNKC] (IRQs 5 10 *11)
[    0.315071] ACPI: PCI Interrupt Link [LNKD] (IRQs 5 10 *11)
[    0.315130] ACPI: PCI Interrupt Link [LNKE] (IRQs 5 *10 11)
[    0.315189] ACPI: PCI Interrupt Link [LNKF] (IRQs 5 *10 11)
[    0.315248] ACPI: PCI Interrupt Link [LNKG] (IRQs 5 10 *11)
[    0.315306] ACPI: PCI Interrupt Link [LNKH] (IRQs 5 10 *11)
[    0.315358] ACPI: PCI Interrupt Link [GSIA] (IRQs *16)
[    0.315364] ACPI: PCI Interrupt Link [GSIB] (IRQs *17)
[    0.315371] ACPI: PCI Interrupt Link [GSIC] (IRQs *18)
[    0.315377] ACPI: PCI Interrupt Link [GSID] (IRQs *19)
[    0.315396] ACPI: PCI Interrupt Link [GSIE] (IRQs *20)
[    0.315401] ACPI: PCI Interrupt Link [GSIF] (IRQs *21)
[    0.315420] ACPI: PCI Interrupt Link [GSIG] (IRQs *22)
[    0.315426] ACPI: PCI Interrupt Link [GSIH] (IRQs *23)
[    0.315642] iommu: Default domain type: Translated 
[    0.315712] pci 0000:00:01.0: vgaarb: setting as boot VGA device
[    0.315714] pci 0000:00:01.0: vgaarb: VGA device added: decodes=io+mem,owns=io+mem,locks=none
[    0.315718] pci 0000:00:01.0: vgaarb: bridge control possible
[    0.315718] vgaarb: loaded
[    0.315802] EDAC MC: Ver: 3.0.0
[    0.316298] NetLabel: Initializing
[    0.316298] NetLabel:  domain hash size = 128
[    0.316298] NetLabel:  protocols = UNLABELED CIPSOv4 CALIPSO
[    0.316298] NetLabel:  unlabeled traffic allowed by default
[    0.316298] PCI: Using ACPI for IRQ routing
[    0.376173] PCI: pci_cache_line_size set to 64 bytes
[    0.376579] e820: reserve RAM buffer [mem 0x0009fc00-0x0009ffff]
[    0.376583] e820: reserve RAM buffer [mem 0x3ffdc000-0x3fffffff]
[    0.376677] clocksource: Switched to clocksource kvm-clock
[    0.381462] VFS: Disk quotas dquot_6.6.0
[    0.381485] VFS: Dquot-cache hash table entries: 512 (order 0, 4096 bytes)
[    0.381655] AppArmor: AppArmor Filesystem Enabled
[    0.381690] pnp: PnP ACPI init
[    0.381801] pnp 00:00: Plug and Play ACPI device, IDs PNP0501 (active)
[    0.381819] pnp 00:01: Plug and Play ACPI device, IDs PNP0303 (active)
[    0.381845] pnp 00:02: Plug and Play ACPI device, IDs PNP0f13 (active)
[    0.381864] pnp 00:03: Plug and Play ACPI device, IDs PNP0b00 (active)
[    0.381986] system 00:04: [mem 0xb0000000-0xbfffffff window] has been reserved
[    0.381992] system 00:04: Plug and Play ACPI device, IDs PNP0c01 (active)
[    0.382282] pnp: PnP ACPI: found 5 devices
[    0.387970] clocksource: acpi_pm: mask: 0xffffff max_cycles: 0xffffff, max_idle_ns: 2085701024 ns
[    0.388022] NET: Registered protocol family 2
[    0.388056] IP idents hash table entries: 16384 (order: 5, 131072 bytes, linear)
[    0.388287] tcp_listen_portaddr_hash hash table entries: 512 (order: 1, 8192 bytes, linear)
[    0.388292] TCP established hash table entries: 8192 (order: 4, 65536 bytes, linear)
[    0.388303] TCP bind hash table entries: 8192 (order: 5, 131072 bytes, linear)
[    0.388313] TCP: Hash tables configured (established 8192 bind 8192)
[    0.388337] UDP hash table entries: 512 (order: 2, 16384 bytes, linear)
[    0.388340] UDP-Lite hash table entries: 512 (order: 2, 16384 bytes, linear)
[    0.388529] NET: Registered protocol family 1
[    0.388536] NET: Registered protocol family 44
[    0.388552] pci 0000:00:02.0: bridge window [io  0x1000-0x0fff] to [bus 01] add_size 1000
[    0.388553] pci 0000:00:02.1: bridge window [io  0x1000-0x0fff] to [bus 02] add_size 1000
[    0.388554] pci 0000:00:02.2: bridge window [io  0x1000-0x0fff] to [bus 03] add_size 1000
[    0.388555] pci 0000:00:02.3: bridge window [io  0x1000-0x0fff] to [bus 04] add_size 1000
[    0.388556] pci 0000:00:02.4: bridge window [io  0x1000-0x0fff] to [bus 05] add_size 1000
[    0.388557] pci 0000:00:02.5: bridge window [io  0x1000-0x0fff] to [bus 06] add_size 1000
[    0.388558] pci 0000:00:02.6: bridge window [io  0x1000-0x0fff] to [bus 07] add_size 1000
[    0.388559] pci 0000:00:02.7: bridge window [io  0x1000-0x0fff] to [bus 08] add_size 1000
[    0.388560] pci 0000:00:03.0: bridge window [io  0x1000-0x0fff] to [bus 09] add_size 1000
[    0.388561] pci 0000:00:03.1: bridge window [io  0x1000-0x0fff] to [bus 0a] add_size 1000
[    0.388562] pci 0000:00:03.2: bridge window [io  0x1000-0x0fff] to [bus 0b] add_size 1000
[    0.388563] pci 0000:00:03.3: bridge window [io  0x1000-0x0fff] to [bus 0c] add_size 1000
[    0.388564] pci 0000:00:03.4: bridge window [io  0x1000-0x0fff] to [bus 0d] add_size 1000
[    0.388565] pci 0000:00:03.5: bridge window [io  0x1000-0x0fff] to [bus 0e] add_size 1000
[    0.388574] pci 0000:00:02.0: BAR 13: assigned [io  0x1000-0x1fff]
[    0.388576] pci 0000:00:02.1: BAR 13: assigned [io  0x2000-0x2fff]
[    0.388577] pci 0000:00:02.2: BAR 13: assigned [io  0x3000-0x3fff]
[    0.388578] pci 0000:00:02.3: BAR 13: assigned [io  0x4000-0x4fff]
[    0.388579] pci 0000:00:02.4: BAR 13: assigned [io  0x5000-0x5fff]
[    0.388580] pci 0000:00:02.5: BAR 13: assigned [io  0x6000-0x6fff]
[    0.388581] pci 0000:00:02.6: BAR 13: assigned [io  0x7000-0x7fff]
[    0.388582] pci 0000:00:02.7: BAR 13: assigned [io  0x8000-0x8fff]
[    0.388583] pci 0000:00:03.0: BAR 13: assigned [io  0x9000-0x9fff]
[    0.388584] pci 0000:00:03.1: BAR 13: assigned [io  0xa000-0xafff]
[    0.388585] pci 0000:00:03.2: BAR 13: assigned [io  0xb000-0xbfff]
[    0.388586] pci 0000:00:03.3: BAR 13: assigned [io  0xd000-0xdfff]
[    0.388587] pci 0000:00:03.4: BAR 13: assigned [io  0xe000-0xefff]
[    0.388588] pci 0000:00:03.5: BAR 13: assigned [io  0xf000-0xffff]
[    0.388591] pci 0000:00:02.0: PCI bridge to [bus 01]
[    0.388612] pci 0000:00:02.0:   bridge window [io  0x1000-0x1fff]
[    0.390213] pci 0000:00:02.0:   bridge window [mem 0xfe800000-0xfe9fffff]
[    0.391155] pci 0000:00:02.0:   bridge window [mem 0xfca00000-0xfcbfffff 64bit pref]
[    0.393084] pci 0000:00:02.1: PCI bridge to [bus 02]
[    0.393097] pci 0000:00:02.1:   bridge window [io  0x2000-0x2fff]
[    0.394572] pci 0000:00:02.1:   bridge window [mem 0xfe600000-0xfe7fffff]
[    0.395517] pci 0000:00:02.1:   bridge window [mem 0xfc800000-0xfc9fffff 64bit pref]
[    0.397462] pci 0000:00:02.2: PCI bridge to [bus 03]
[    0.397476] pci 0000:00:02.2:   bridge window [io  0x3000-0x3fff]
[    0.398920] pci 0000:00:02.2:   bridge window [mem 0xfe400000-0xfe5fffff]
[    0.399868] pci 0000:00:02.2:   bridge window [mem 0xfc600000-0xfc7fffff 64bit pref]
[    0.401824] pci 0000:00:02.3: PCI bridge to [bus 04]
[    0.401837] pci 0000:00:02.3:   bridge window [io  0x4000-0x4fff]
[    0.403409] pci 0000:00:02.3:   bridge window [mem 0xfe200000-0xfe3fffff]
[    0.404395] pci 0000:00:02.3:   bridge window [mem 0xfc400000-0xfc5fffff 64bit pref]
[    0.406413] pci 0000:00:02.4: PCI bridge to [bus 05]
[    0.406425] pci 0000:00:02.4:   bridge window [io  0x5000-0x5fff]
[    0.407897] pci 0000:00:02.4:   bridge window [mem 0xfe000000-0xfe1fffff]
[    0.408854] pci 0000:00:02.4:   bridge window [mem 0xfc200000-0xfc3fffff 64bit pref]
[    0.410882] pci 0000:00:02.5: PCI bridge to [bus 06]
[    0.410894] pci 0000:00:02.5:   bridge window [io  0x6000-0x6fff]
[    0.412389] pci 0000:00:02.5:   bridge window [mem 0xfde00000-0xfdffffff]
[    0.413410] pci 0000:00:02.5:   bridge window [mem 0xfc000000-0xfc1fffff 64bit pref]
[    0.416844] pci 0000:00:02.6: PCI bridge to [bus 07]
[    0.416856] pci 0000:00:02.6:   bridge window [io  0x7000-0x7fff]
[    0.417860] pci 0000:00:02.6:   bridge window [mem 0xfdc00000-0xfddfffff]
[    0.418578] pci 0000:00:02.6:   bridge window [mem 0xfbe00000-0xfbffffff 64bit pref]
[    0.420387] pci 0000:00:02.7: PCI bridge to [bus 08]
[    0.420402] pci 0000:00:02.7:   bridge window [io  0x8000-0x8fff]
[    0.421600] pci 0000:00:02.7:   bridge window [mem 0xfda00000-0xfdbfffff]
[    0.422318] pci 0000:00:02.7:   bridge window [mem 0xfbc00000-0xfbdfffff 64bit pref]
[    0.423438] pci 0000:00:03.0: PCI bridge to [bus 09]
[    0.423450] pci 0000:00:03.0:   bridge window [io  0x9000-0x9fff]
[    0.424252] pci 0000:00:03.0:   bridge window [mem 0xfd800000-0xfd9fffff]
[    0.424782] pci 0000:00:03.0:   bridge window [mem 0xfba00000-0xfbbfffff 64bit pref]
[    0.425980] pci 0000:00:03.1: PCI bridge to [bus 0a]
[    0.425992] pci 0000:00:03.1:   bridge window [io  0xa000-0xafff]
[    0.426781] pci 0000:00:03.1:   bridge window [mem 0xfd600000-0xfd7fffff]
[    0.427471] pci 0000:00:03.1:   bridge window [mem 0xfb800000-0xfb9fffff 64bit pref]
[    0.429187] pci 0000:00:03.2: PCI bridge to [bus 0b]
[    0.431253] pci 0000:00:03.2:   bridge window [io  0xb000-0xbfff]
[    0.432177] pci 0000:00:03.2:   bridge window [mem 0xfd400000-0xfd5fffff]
[    0.432713] pci 0000:00:03.2:   bridge window [mem 0xfb600000-0xfb7fffff 64bit pref]
[    0.435138] pci 0000:00:03.3: PCI bridge to [bus 0c]
[    0.435150] pci 0000:00:03.3:   bridge window [io  0xd000-0xdfff]
[    0.435843] pci 0000:00:03.3:   bridge window [mem 0xfd200000-0xfd3fffff]
[    0.436382] pci 0000:00:03.3:   bridge window [mem 0xfb400000-0xfb5fffff 64bit pref]
[    0.437400] pci 0000:00:03.4: PCI bridge to [bus 0d]
[    0.437411] pci 0000:00:03.4:   bridge window [io  0xe000-0xefff]
[    0.438108] pci 0000:00:03.4:   bridge window [mem 0xfd000000-0xfd1fffff]
[    0.438549] pci 0000:00:03.4:   bridge window [mem 0xfb200000-0xfb3fffff 64bit pref]
[    0.439435] pci 0000:00:03.5: PCI bridge to [bus 0e]
[    0.439446] pci 0000:00:03.5:   bridge window [io  0xf000-0xffff]
[    0.440109] pci 0000:00:03.5:   bridge window [mem 0xfce00000-0xfcffffff]
[    0.440605] pci 0000:00:03.5:   bridge window [mem 0xfb000000-0xfb1fffff 64bit pref]
[    0.441650] pci_bus 0000:00: resource 4 [io  0x0000-0x0cf7 window]
[    0.441651] pci_bus 0000:00: resource 5 [io  0x0d00-0xffff window]
[    0.441652] pci_bus 0000:00: resource 6 [mem 0x000a0000-0x000bffff window]
[    0.441653] pci_bus 0000:00: resource 7 [mem 0x40000000-0xafffffff window]
[    0.441654] pci_bus 0000:00: resource 8 [mem 0xc0000000-0xfebfffff window]
[    0.441655] pci_bus 0000:00: resource 9 [mem 0x100000000-0x8ffffffff window]
[    0.441655] pci_bus 0000:01: resource 0 [io  0x1000-0x1fff]
[    0.441656] pci_bus 0000:01: resource 1 [mem 0xfe800000-0xfe9fffff]
[    0.441657] pci_bus 0000:01: resource 2 [mem 0xfca00000-0xfcbfffff 64bit pref]
[    0.441658] pci_bus 0000:02: resource 0 [io  0x2000-0x2fff]
[    0.441659] pci_bus 0000:02: resource 1 [mem 0xfe600000-0xfe7fffff]
[    0.441659] pci_bus 0000:02: resource 2 [mem 0xfc800000-0xfc9fffff 64bit pref]
[    0.441660] pci_bus 0000:03: resource 0 [io  0x3000-0x3fff]
[    0.441661] pci_bus 0000:03: resource 1 [mem 0xfe400000-0xfe5fffff]
[    0.441662] pci_bus 0000:03: resource 2 [mem 0xfc600000-0xfc7fffff 64bit pref]
[    0.441663] pci_bus 0000:04: resource 0 [io  0x4000-0x4fff]
[    0.441663] pci_bus 0000:04: resource 1 [mem 0xfe200000-0xfe3fffff]
[    0.441664] pci_bus 0000:04: resource 2 [mem 0xfc400000-0xfc5fffff 64bit pref]
[    0.441665] pci_bus 0000:05: resource 0 [io  0x5000-0x5fff]
[    0.441666] pci_bus 0000:05: resource 1 [mem 0xfe000000-0xfe1fffff]
[    0.441667] pci_bus 0000:05: resource 2 [mem 0xfc200000-0xfc3fffff 64bit pref]
[    0.441667] pci_bus 0000:06: resource 0 [io  0x6000-0x6fff]
[    0.441668] pci_bus 0000:06: resource 1 [mem 0xfde00000-0xfdffffff]
[    0.441669] pci_bus 0000:06: resource 2 [mem 0xfc000000-0xfc1fffff 64bit pref]
[    0.441670] pci_bus 0000:07: resource 0 [io  0x7000-0x7fff]
[    0.441671] pci_bus 0000:07: resource 1 [mem 0xfdc00000-0xfddfffff]
[    0.441671] pci_bus 0000:07: resource 2 [mem 0xfbe00000-0xfbffffff 64bit pref]
[    0.441672] pci_bus 0000:08: resource 0 [io  0x8000-0x8fff]
[    0.441673] pci_bus 0000:08: resource 1 [mem 0xfda00000-0xfdbfffff]
[    0.441674] pci_bus 0000:08: resource 2 [mem 0xfbc00000-0xfbdfffff 64bit pref]
[    0.441675] pci_bus 0000:09: resource 0 [io  0x9000-0x9fff]
[    0.441675] pci_bus 0000:09: resource 1 [mem 0xfd800000-0xfd9fffff]
[    0.441676] pci_bus 0000:09: resource 2 [mem 0xfba00000-0xfbbfffff 64bit pref]
[    0.441677] pci_bus 0000:0a: resource 0 [io  0xa000-0xafff]
[    0.441678] pci_bus 0000:0a: resource 1 [mem 0xfd600000-0xfd7fffff]
[    0.441678] pci_bus 0000:0a: resource 2 [mem 0xfb800000-0xfb9fffff 64bit pref]
[    0.441679] pci_bus 0000:0b: resource 0 [io  0xb000-0xbfff]
[    0.441680] pci_bus 0000:0b: resource 1 [mem 0xfd400000-0xfd5fffff]
[    0.441681] pci_bus 0000:0b: resource 2 [mem 0xfb600000-0xfb7fffff 64bit pref]
[    0.441681] pci_bus 0000:0c: resource 0 [io  0xd000-0xdfff]
[    0.441682] pci_bus 0000:0c: resource 1 [mem 0xfd200000-0xfd3fffff]
[    0.441683] pci_bus 0000:0c: resource 2 [mem 0xfb400000-0xfb5fffff 64bit pref]
[    0.441684] pci_bus 0000:0d: resource 0 [io  0xe000-0xefff]
[    0.441685] pci_bus 0000:0d: resource 1 [mem 0xfd000000-0xfd1fffff]
[    0.441685] pci_bus 0000:0d: resource 2 [mem 0xfb200000-0xfb3fffff 64bit pref]
[    0.441686] pci_bus 0000:0e: resource 0 [io  0xf000-0xffff]
[    0.441687] pci_bus 0000:0e: resource 1 [mem 0xfce00000-0xfcffffff]
[    0.441688] pci_bus 0000:0e: resource 2 [mem 0xfb000000-0xfb1fffff 64bit pref]
[    0.441819] pci 0000:00:01.0: Video device with shadowed ROM at [mem 0x000c0000-0x000dffff]
[    0.442268] PCI Interrupt Link [GSIG] enabled at IRQ 22
[    0.444227] PCI: CLS 0 bytes, default 64
[    0.444294] Trying to unpack rootfs image as initramfs...
[    0.769748] Freeing initrd memory: 27512K
[    0.769866] clocksource: tsc: mask: 0xffffffffffffffff max_cycles: 0x29dc03c1beb, max_idle_ns: 440795205215 ns
[    0.770189] Initialise system trusted keyrings
[    0.770205] Key type blacklist registered
[    0.770280] workingset: timestamp_bits=36 max_order=18 bucket_order=0
[    0.770994] zbud: loaded
[    0.771160] integrity: Platform Keyring initialized
[    0.771162] Key type asymmetric registered
[    0.771167] Asymmetric key parser 'x509' registered
[    0.771174] Block layer SCSI generic (bsg) driver version 0.4 loaded (major 251)
[    0.771233] io scheduler mq-deadline registered
[    0.773461] pcieport 0000:00:02.0: PME: Signaling with IRQ 24
[    0.773679] pcieport 0000:00:02.0: AER: enabled with IRQ 24
[    0.774787] pcieport 0000:00:02.1: PME: Signaling with IRQ 25
[    0.774985] pcieport 0000:00:02.1: AER: enabled with IRQ 25
[    0.777317] pcieport 0000:00:02.2: PME: Signaling with IRQ 26
[    0.777583] pcieport 0000:00:02.2: AER: enabled with IRQ 26
[    0.779892] pcieport 0000:00:02.3: PME: Signaling with IRQ 27
[    0.780108] pcieport 0000:00:02.3: AER: enabled with IRQ 27
[    0.782987] pcieport 0000:00:02.4: PME: Signaling with IRQ 28
[    0.783205] pcieport 0000:00:02.4: AER: enabled with IRQ 28
[    0.784821] pcieport 0000:00:02.5: PME: Signaling with IRQ 29
[    0.785055] pcieport 0000:00:02.5: AER: enabled with IRQ 29
[    0.786671] pcieport 0000:00:02.6: PME: Signaling with IRQ 30
[    0.786870] pcieport 0000:00:02.6: AER: enabled with IRQ 30
[    0.789044] pcieport 0000:00:02.7: PME: Signaling with IRQ 31
[    0.789247] pcieport 0000:00:02.7: AER: enabled with IRQ 31
[    0.789744] PCI Interrupt Link [GSIH] enabled at IRQ 23
[    0.791553] pcieport 0000:00:03.0: PME: Signaling with IRQ 32
[    0.791759] pcieport 0000:00:03.0: AER: enabled with IRQ 32
[    0.794659] pcieport 0000:00:03.1: PME: Signaling with IRQ 33
[    0.794845] pcieport 0000:00:03.1: AER: enabled with IRQ 33
[    0.796296] pcieport 0000:00:03.2: PME: Signaling with IRQ 34
[    0.796481] pcieport 0000:00:03.2: AER: enabled with IRQ 34
[    0.798112] pcieport 0000:00:03.3: PME: Signaling with IRQ 35
[    0.798303] pcieport 0000:00:03.3: AER: enabled with IRQ 35
[    0.799855] pcieport 0000:00:03.4: PME: Signaling with IRQ 36
[    0.800066] pcieport 0000:00:03.4: AER: enabled with IRQ 36
[    0.801807] pcieport 0000:00:03.5: PME: Signaling with IRQ 37
[    0.801995] pcieport 0000:00:03.5: AER: enabled with IRQ 37
[    0.802323] shpchp: Standard Hot Plug PCI Controller Driver version: 0.4
[    0.802343] intel_idle: Please enable MWAIT in BIOS SETUP
[    0.802590] Serial: 8250/16550 driver, 4 ports, IRQ sharing enabled
[    0.802952] 00:00: ttyS0 at I/O 0x3f8 (irq = 4, base_baud = 115200) is a 16550A
[    0.803433] Linux agpgart interface v0.103
[    0.803550] AMD-Vi: AMD IOMMUv2 driver by Joerg Roedel <jroedel@suse.de>
[    0.803551] AMD-Vi: AMD IOMMUv2 functionality not available on this system
[    0.803735] i8042: PNP: PS/2 Controller [PNP0303:KBD,PNP0f13:MOU] at 0x60,0x64 irq 1,12
[    0.805443] serio: i8042 KBD port at 0x60,0x64 irq 1
[    0.805449] serio: i8042 AUX port at 0x60,0x64 irq 12
[    0.805567] mousedev: PS/2 mouse device common for all mice
[    0.805715] rtc_cmos 00:03: RTC can wake from S4
[    0.806324] input: AT Translated Set 2 keyboard as /devices/platform/i8042/serio0/input/input0
[    0.806636] rtc_cmos 00:03: registered as rtc0
[    0.806738] rtc_cmos 00:03: setting system clock to 2022-11-19T17:58:46 UTC (1668880726)
[    0.806752] rtc_cmos 00:03: alarms up to one day, y3k, 242 bytes nvram
[    0.806757] intel_pstate: CPU model not supported
[    0.806831] ledtrig-cpu: registered to indicate activity on CPUs
[    0.807013] NET: Registered protocol family 10
[    0.812710] Segment Routing with IPv6
[    0.812731] mip6: Mobile IPv6
[    0.812735] NET: Registered protocol family 17
[    0.812771] mpls_gso: MPLS GSO support
[    0.812891] IPI shorthand broadcast: enabled
[    0.812899] sched_clock: Marking stable (797383366, 15454123)->(850465048, -37627559)
[    0.812974] registered taskstats version 1
[    0.812975] Loading compiled-in X.509 certificates
[    0.833338] Loaded X.509 cert 'Debian Secure Boot CA: 6ccece7e4c6c0d1f6149f3dd27dfcc5cbb419ea1'
[    0.833349] Loaded X.509 cert 'Debian Secure Boot Signer 2021 - linux: 4b6ef5abca669825178e052c84667ccbc0531f8c'
[    0.833367] zswap: loaded using pool lzo/zbud
[    0.833475] Key type ._fscrypt registered
[    0.833475] Key type .fscrypt registered
[    0.833476] Key type fscrypt-provisioning registered
[    0.833514] AppArmor: AppArmor sha1 policy hashing enabled
[    0.835202] Freeing unused kernel image (initmem) memory: 2392K
[    0.849072] Write protecting the kernel read-only data: 22528k
[    0.850035] Freeing unused kernel image (text/rodata gap) memory: 2040K
[    0.850174] Freeing unused kernel image (rodata/data gap) memory: 632K
[    0.892259] x86/mm: Checked W+X mappings: passed, no W+X pages found.
[    0.892260] x86/mm: Checking user space page tables
[    0.929806] x86/mm: Checked W+X mappings: passed, no W+X pages found.
[    0.929815] Run /init as init process
[    0.929816]   with arguments:
[    0.929817]     /init
[    0.929818]   with environment:
[    0.929818]     HOME=/
[    0.929818]     TERM=linux
[    0.929819]     BOOT_IMAGE=/boot/vmlinuz-5.10.0-9-amd64
[    0.983113] PCI Interrupt Link [GSIF] enabled at IRQ 21
[    0.999794] lpc_ich 0000:00:1f.0: I/O space for GPIO uninitialized
[    1.004353] ACPI: bus type USB registered
[    1.004376] usbcore: registered new interface driver usbfs
[    1.004389] usbcore: registered new interface driver hub
[    1.004396] usbcore: registered new device driver usb
[    1.013065] PCI Interrupt Link [GSIA] enabled at IRQ 16
[    1.013280] i801_smbus 0000:00:1f.3: SMBus using PCI interrupt
[    1.013373] i2c i2c-0: 1/1 memory slots populated (from DMI)
[    1.013374] i2c i2c-0: Memory type 0x07 not supported yet, not instantiating SPD
[    1.020115] xhci_hcd 0000:02:00.0: xHCI Host Controller
[    1.020128] xhci_hcd 0000:02:00.0: new USB bus registered, assigned bus number 1
[    1.020474] xhci_hcd 0000:02:00.0: hcc params 0x00087001 hci version 0x100 quirks 0x0000000000000010
[    1.021377] xhci_hcd 0000:02:00.0: xHCI Host Controller
[    1.021382] xhci_hcd 0000:02:00.0: new USB bus registered, assigned bus number 2
[    1.021385] xhci_hcd 0000:02:00.0: Host supports USB 3.0 SuperSpeed
[    1.021435] usb usb1: New USB device found, idVendor=1d6b, idProduct=0002, bcdDevice= 5.10
[    1.021436] usb usb1: New USB device strings: Mfr=3, Product=2, SerialNumber=1
[    1.021437] usb usb1: Product: xHCI Host Controller
[    1.021438] usb usb1: Manufacturer: Linux 5.10.0-9-amd64 xhci-hcd
[    1.021438] usb usb1: SerialNumber: 0000:02:00.0
[    1.021506] hub 1-0:1.0: USB hub found
[    1.021582] hub 1-0:1.0: 15 ports detected
[    1.022089] usb usb2: We don't know the algorithms for LPM for this host, disabling LPM.
[    1.022100] usb usb2: New USB device found, idVendor=1d6b, idProduct=0003, bcdDevice= 5.10
[    1.022101] usb usb2: New USB device strings: Mfr=3, Product=2, SerialNumber=1
[    1.022102] usb usb2: Product: xHCI Host Controller
[    1.022102] usb usb2: Manufacturer: Linux 5.10.0-9-amd64 xhci-hcd
[    1.022103] usb usb2: SerialNumber: 0000:02:00.0
[    1.022149] hub 2-0:1.0: USB hub found
[    1.022220] hub 2-0:1.0: 15 ports detected
[    1.023477] SCSI subsystem initialized
[    1.032931] libata version 3.00 loaded.
[    1.035681] ahci 0000:00:1f.2: version 3.0
[    1.036675] ahci 0000:00:1f.2: AHCI 0001.0000 32 slots 6 ports 1.5 Gbps 0x3f impl SATA mode
[    1.036676] ahci 0000:00:1f.2: flags: 64bit ncq only 
[    1.037816] scsi host0: ahci
[    1.037954] scsi host1: ahci
[    1.038018] scsi host2: ahci
[    1.038077] scsi host3: ahci
[    1.038140] scsi host4: ahci
[    1.038205] scsi host5: ahci
[    1.038246] ata1: SATA max UDMA/133 abar m4096@0xfea23000 port 0xfea23100 irq 41
[    1.038254] ata2: SATA max UDMA/133 abar m4096@0xfea23000 port 0xfea23180 irq 41
[    1.038260] ata3: SATA max UDMA/133 abar m4096@0xfea23000 port 0xfea23200 irq 41
[    1.038266] ata4: SATA max UDMA/133 abar m4096@0xfea23000 port 0xfea23280 irq 41
[    1.038271] ata5: SATA max UDMA/133 abar m4096@0xfea23000 port 0xfea23300 irq 41
[    1.038276] ata6: SATA max UDMA/133 abar m4096@0xfea23000 port 0xfea23380 irq 41
[    1.044368] virtio_blk virtio3: [vda] 41943040 512-byte logical blocks (21.5 GB/20.0 GiB)
[    1.044373] vda: detected capacity change from 0 to 21474836480
[    1.044876]  vda: vda1 vda2 < vda5 >
[    1.053232] virtio_net virtio1 enp1s0: renamed from eth0
[    1.281304] usb 1-1: new high-speed USB device number 2 using xhci_hcd
[    1.353534] ata6: SATA link down (SStatus 0 SControl 300)
[    1.354719] ata5: SATA link down (SStatus 0 SControl 300)
[    1.355826] ata1: SATA link up 1.5 Gbps (SStatus 113 SControl 300)
[    1.356485] ata1.00: ATAPI: QEMU DVD-ROM, 2.5+, max UDMA/100
[    1.356498] ata1.00: applying bridge limits
[    1.357815] ata4: SATA link down (SStatus 0 SControl 300)
[    1.358546] ata1.00: configured for UDMA/100
[    1.360592] ata3: SATA link down (SStatus 0 SControl 300)
[    1.362840] scsi 0:0:0:0: CD-ROM            QEMU     QEMU DVD-ROM     2.5+ PQ: 0 ANSI: 5
[    1.362879] ata2: SATA link down (SStatus 0 SControl 300)
[    1.417586] sr 0:0:0:0: [sr0] scsi3-mmc drive: 4x/4x cd/rw xa/form2 tray
[    1.417589] cdrom: Uniform CD-ROM driver Revision: 3.20
[    1.430036] usb 1-1: New USB device found, idVendor=0627, idProduct=0001, bcdDevice= 0.00
[    1.430040] usb 1-1: New USB device strings: Mfr=1, Product=3, SerialNumber=10
[    1.430043] usb 1-1: Product: QEMU USB Tablet
[    1.430044] usb 1-1: Manufacturer: QEMU
[    1.430046] usb 1-1: SerialNumber: 28754-0000:00:02.1:00.0-1
[    1.438576] hid: raw HID events driver (C) Jiri Kosina
[    1.442959] usbcore: registered new interface driver usbhid
[    1.442960] usbhid: USB HID core driver
[    1.444851] input: QEMU QEMU USB Tablet as /devices/pci0000:00/0000:00:02.1/0000:02:00.0/usb1/1-1/1-1:1.0/0003:0627:0001.0001/input/input3
[    1.445462] hid-generic 0003:0627:0001.0001: input,hidraw0: USB HID v0.01 Mouse [QEMU QEMU USB Tablet] on usb-0000:02:00.0-1/input0
[    1.473581] sr 0:0:0:0: Attached scsi CD-ROM sr0
[    1.794611] PM: Image not found (code -22)
[    1.887980] input: ImExPS/2 Generic Explorer Mouse as /devices/platform/i8042/serio1/input/input2
[    1.935730] EXT4-fs (vda1): mounted filesystem with ordered data mode. Opts: (null)
[    1.960866] Not activating Mandatory Access Control as /sbin/tomoyo-init does not exist.
[    1.984116] systemd[1]: Inserted module 'autofs4'
[    1.994353] systemd[1]: systemd 247.3-7+deb11u1 running in system mode. (+PAM +AUDIT +SELINUX +IMA +APPARMOR +SMACK +SYSVINIT +UTMP +LIBCRYPTSETUP +GCRYPT +GNUTLS +ACL +XZ +LZ4 +ZSTD +SECCOMP +BLKID +ELFUTILS +KMOD +IDN2 -IDN +PCRE2 default-hierarchy=unified)
[    1.994417] systemd[1]: Detected virtualization kvm.
[    1.994424] systemd[1]: Detected architecture x86-64.
[    1.994603] systemd[1]: Set hostname to <debian-bullseye>.
[    2.099097] systemd[1]: Queued start job for default target Graphical Interface.
[    2.100066] systemd[1]: Created slice system-getty.slice.
[    2.100306] systemd[1]: Created slice system-modprobe.slice.
[    2.100497] systemd[1]: Created slice User and Session Slice.
[    2.100557] systemd[1]: Started Dispatch Password Requests to Console Directory Watch.
[    2.100601] systemd[1]: Started Forward Password Requests to Wall Directory Watch.
[    2.100746] systemd[1]: Set up automount Arbitrary Executable File Formats File System Automount Point.
[    2.100781] systemd[1]: Reached target Local Encrypted Volumes.
[    2.100823] systemd[1]: Reached target Paths.
[    2.100845] systemd[1]: Reached target Remote File Systems.
[    2.100860] systemd[1]: Reached target Slices.
[    2.100998] systemd[1]: Listening on Syslog Socket.
[    2.101084] systemd[1]: Listening on fsck to fsckd communication Socket.
[    2.101152] systemd[1]: Listening on initctl Compatibility Named Pipe.
[    2.101272] systemd[1]: Listening on Journal Audit Socket.
[    2.101336] systemd[1]: Listening on Journal Socket (/dev/log).
[    2.101410] systemd[1]: Listening on Journal Socket.
[    2.101607] systemd[1]: Listening on udev Control Socket.
[    2.101682] systemd[1]: Listening on udev Kernel Socket.
[    2.102243] systemd[1]: Mounting Huge Pages File System...
[    2.102909] systemd[1]: Mounting POSIX Message Queue File System...
[    2.103639] systemd[1]: Mounting Kernel Debug File System...
[    2.104489] systemd[1]: Mounting Kernel Trace File System...
[    2.105425] systemd[1]: Starting Set the console keyboard layout...
[    2.106214] systemd[1]: Starting Create list of static device nodes for the current kernel...
[    2.106909] systemd[1]: Starting Load Kernel Module configfs...
[    2.107524] systemd[1]: Starting Load Kernel Module drm...
[    2.108197] systemd[1]: Starting Load Kernel Module fuse...
[    2.109078] systemd[1]: Condition check resulted in Set Up Additional Binary Formats being skipped.
[    2.109165] systemd[1]: Condition check resulted in File System Check on Root Device being skipped.
[    2.110478] systemd[1]: Starting Journal Service...
[    2.113728] systemd[1]: Starting Load Kernel Modules...
[    2.114972] systemd[1]: Starting Remount Root and Kernel File Systems...
[    2.115920] systemd[1]: Starting Coldplug All udev Devices...
[    2.117398] systemd[1]: Mounted Huge Pages File System.
[    2.117472] systemd[1]: Mounted POSIX Message Queue File System.
[    2.117526] systemd[1]: Mounted Kernel Debug File System.
[    2.117578] systemd[1]: Mounted Kernel Trace File System.
[    2.118054] systemd[1]: Finished Create list of static device nodes for the current kernel.
[    2.123849] systemd[1]: modprobe@configfs.service: Succeeded.
[    2.125326] systemd[1]: Finished Load Kernel Module configfs.
[    2.129206] systemd[1]: Mounting Kernel Configuration File System...
[    2.139212] systemd[1]: Finished Load Kernel Modules.
[    2.140242] systemd[1]: Starting Apply Kernel Variables...
[    2.144604] fuse: init (API version 7.32)
[    2.147122] systemd[1]: Mounted Kernel Configuration File System.
[    2.152623] systemd[1]: modprobe@fuse.service: Succeeded.
[    2.152778] systemd[1]: Finished Load Kernel Module fuse.
[    2.153163] systemd[1]: Finished Apply Kernel Variables.
[    2.157084] systemd[1]: Mounting FUSE Control File System...
[    2.161611] EXT4-fs (vda1): re-mounted. Opts: errors=remount-ro
[    2.162987] systemd[1]: Finished Remount Root and Kernel File Systems.
[    2.163358] systemd[1]: Condition check resulted in Rebuild Hardware Database being skipped.
[    2.163385] systemd[1]: Condition check resulted in Platform Persistent Storage Archival being skipped.
[    2.163940] systemd[1]: Starting Load/Save Random Seed...
[    2.164517] systemd[1]: Starting Create System Users...
[    2.165386] systemd[1]: modprobe@drm.service: Succeeded.
[    2.165547] systemd[1]: Finished Load Kernel Module drm.
[    2.170776] systemd[1]: Mounted FUSE Control File System.
[    2.191425] systemd[1]: Finished Create System Users.
[    2.192083] systemd[1]: Starting Create Static Device Nodes in /dev...
[    2.192999] systemd[1]: Finished Load/Save Random Seed.
[    2.193112] systemd[1]: Condition check resulted in First Boot Complete being skipped.
[    2.208420] systemd[1]: Started Journal Service.
[    2.225205] systemd-journald[213]: Received client request to flush runtime journal.
[    2.331957] input: Power Button as /devices/LNXSYSTM:00/LNXPWRBN:00/input/input4
[    2.345169] ACPI: Power Button [PWRF]
[    2.359851] audit: type=1400 audit(1668880728.048:2): apparmor="STATUS" operation="profile_load" profile="unconfined" name="lsb_release" pid=261 comm="apparmor_parser"
[    2.360064] audit: type=1400 audit(1668880728.048:3): apparmor="STATUS" operation="profile_load" profile="unconfined" name="nvidia_modprobe" pid=262 comm="apparmor_parser"
[    2.360066] audit: type=1400 audit(1668880728.048:4): apparmor="STATUS" operation="profile_load" profile="unconfined" name="nvidia_modprobe//kmod" pid=262 comm="apparmor_parser"
[    2.408429] audit: type=1400 audit(1668880728.096:5): apparmor="STATUS" operation="profile_load" profile="unconfined" name="/usr/bin/man" pid=263 comm="apparmor_parser"
[    2.408433] audit: type=1400 audit(1668880728.096:6): apparmor="STATUS" operation="profile_load" profile="unconfined" name="man_filter" pid=263 comm="apparmor_parser"
[    2.408438] audit: type=1400 audit(1668880728.096:7): apparmor="STATUS" operation="profile_load" profile="unconfined" name="man_groff" pid=263 comm="apparmor_parser"
[    2.421395] Adding 998396k swap on /dev/vda5.  Priority:-2 extents:1 across:998396k FS
[    2.436914] [drm] pci: virtio-vga detected at 0000:00:01.0
[    2.436924] virtio-pci 0000:00:01.0: vgaarb: deactivate vga console
[    2.436978] sr 0:0:0:0: Attached scsi generic sg0 type 5
[    2.442083] input: PC Speaker as /devices/platform/pcspkr/input/input5
[    2.443346] iTCO_vendor_support: vendor-support=0
[    2.445709] iTCO_wdt: Intel TCO WatchDog Timer Driver v1.11
[    2.445802] iTCO_wdt: Found a ICH9 TCO device (Version=2, TCOBASE=0x0660)
[    2.445915] iTCO_wdt: initialized. heartbeat=30 sec (nowayout=0)
[    2.526127] RAPL PMU: API unit is 2^-32 Joules, 0 fixed counters, 10737418240 ms ovfl timer
[    2.531991] Console: switching to colour dummy device 80x25
[    2.532050] [drm] features: -virgl +edid
[    2.532676] [drm] number of scanouts: 1
[    2.532682] [drm] number of cap sets: 0
[    2.534346] cryptd: max_cpu_qlen set to 1000
[    2.543435] AVX2 version of gcm_enc/dec engaged.
[    2.543436] AES CTR mode by8 optimization enabled
[    2.544779] [drm] Initialized virtio_gpu 0.1.0 0 for virtio0 on minor 0
[    2.558907] Console: switching to colour frame buffer device 160x50
[    2.563481] virtio_gpu virtio0: [drm] fb0: virtio_gpudrmfb frame buffer device
[    2.669247] snd_hda_codec_generic hdaudioC0D0: autoconfig for Generic: line_outs=1 (0x3/0x0/0x0/0x0/0x0) type:line
[    2.669250] snd_hda_codec_generic hdaudioC0D0:    speaker_outs=0 (0x0/0x0/0x0/0x0/0x0)
[    2.669251] snd_hda_codec_generic hdaudioC0D0:    hp_outs=0 (0x0/0x0/0x0/0x0/0x0)
[    2.669252] snd_hda_codec_generic hdaudioC0D0:    mono: mono_out=0x0
[    2.669253] snd_hda_codec_generic hdaudioC0D0:    inputs:
[    2.669254] snd_hda_codec_generic hdaudioC0D0:      Line=0x5
[    2.810745] intel_pmc_core intel_pmc_core.0:  initialized
[   20.253968] FS-Cache: Loaded
[   20.255194] Key type dns_resolver registered
[   20.295715] FS-Cache: Netfs 'cifs' registered for caching
[   20.298357] Key type cifs.spnego registered
[   20.298365] Key type cifs.idmap registered
[   20.298598] CIFS: Attempting to mount //localhost/ftp
[   20.298629] CIFS: No dialect specified on mount. Default has changed to a more secure dialect, SMB2.1 or later (e.g. SMB3.1.1), from CIFS (SMB1). To use the less secure SMB1 dialect to access old servers which do not support SMB3.1.1 (or even SMB3 or SMB2.1) specify vers=1.0 on mount.
[   31.245676] usercopy: Kernel memory exposure attempt detected from SLUB object 'task_struct' (offset 34, size 200)!
[   31.245721] ------------[ cut here ]------------
[   31.245722] kernel BUG at mm/usercopy.c:99!
[   31.245743] invalid opcode: 0000 [#1] SMP PTI
[   31.245754] CPU: 0 PID: 610 Comm: wget Not tainted 5.10.0-9-amd64 #1 Debian 5.10.70-1
[   31.245769] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.0-debian-1.16.0-4 04/01/2014
[   31.245793] RIP: 0010:usercopy_abort+0x74/0x76
[   31.245804] Code: 6f 0e 92 51 48 0f 45 d6 49 c7 c3 d4 74 0f 92 4c 89 d1 57 48 c7 c6 c9 1b 0e 92 48 c7 c7 a0 75 0f 92 49 0f 45 f3 e8 a1 7a ff ff <0f> 0b 4c 89 e1 49 89 d8 44 89 ea 31 f6 48 29 c1 48 c7 c7 16 75 0f
[   31.245840] RSP: 0018:ffffa8e901117bd0 EFLAGS: 00010246
[   31.245852] RAX: 0000000000000067 RBX: 00000000000000c8 RCX: 0000000000000000
[   31.245867] RDX: 0000000000000000 RSI: ffff8ad67ec18a00 RDI: ffff8ad67ec18a00
[   31.245881] RBP: ffff8ad643d600ea R08: 0000000000000000 R09: ffffa8e9011179f8
[   31.245895] R10: ffffa8e9011179f0 R11: ffffffff926cb428 R12: ffff8ad643d60022
[   31.245910] R13: 0000000000000001 R14: 0000000000000000 R15: ffff8ad643cf9ac0
[   31.245925] FS:  00007f515f38d980(0000) GS:ffff8ad67ec00000(0000) knlGS:0000000000000000
[   31.245941] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   31.245953] CR2: 0000565061437320 CR3: 00000000026c6005 CR4: 0000000000370ef0
[   31.245970] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   31.245984] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   31.245999] Call Trace:
[   31.246013]  __check_heap_object+0xe0/0x110
[   31.246024]  __check_object_size+0x136/0x150
[   31.246036]  simple_copy_to_iter+0x26/0x40
[   31.246046]  __skb_datagram_iter+0x195/0x2e0
[   31.246056]  ? zerocopy_sg_from_iter+0x50/0x50
[   31.246067]  skb_copy_datagram_iter+0x36/0x80
[   31.246079]  tcp_recvmsg+0x6a2/0xae0
[   31.246089]  ? _cond_resched+0x16/0x40
[   31.246099]  ? aa_sk_perm+0x3e/0x1b0
[   31.246110]  inet6_recvmsg+0x5e/0x120
[   31.246119]  ? sock_recvmsg+0x1d/0x70
[   31.246128]  sock_read_iter+0x92/0xf0
[   31.246138]  new_sync_read+0x18a/0x1a0
[   31.246147]  vfs_read+0xf4/0x180
[   31.246161]  ksys_read+0xa7/0xe0
[   31.246171]  ? exit_to_user_mode_prepare+0x32/0x120
[   31.246182]  do_syscall_64+0x33/0x80
[   31.246191]  entry_SYSCALL_64_after_hwframe+0x44/0xa9
[   31.246203] RIP: 0033:0x7f515f84a78e
[   31.246224] Code: c0 e9 b6 fe ff ff 50 48 8d 3d ee 04 0b 00 e8 a9 fd 01 00 66 0f 1f 84 00 00 00 00 00 64 8b 04 25 18 00 00 00 85 c0 75 14 0f 05 <48> 3d 00 f0 ff ff 77 5a c3 66 0f 1f 84 00 00 00 00 00 48 83 ec 28
[   31.246261] RSP: 002b:00007ffec1ff3048 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
[   31.246277] RAX: ffffffffffffffda RBX: 0000000000002000 RCX: 00007f515f84a78e
[   31.246291] RDX: 0000000000002000 RSI: 000055856f37db60 RDI: 0000000000000003
[   31.246306] RBP: 0000000000000003 R08: 00007ffec1ff2f70 R09: 0000000000000006
[   31.246321] R10: 0000000000000000 R11: 0000000000000246 R12: 000055856f37db60
[   31.246336] R13: 0000000000002000 R14: 000055856f37d1d0 R15: 0000000000000000
[   31.246824] Modules linked in: md4 sha512_ssse3 sha512_generic cmac nls_utf8 cifs libarc4 dns_resolver fscache libdes intel_rapl_msr intel_rapl_common intel_pmc_core_pltdrv intel_pmc_core kvm_intel kvm irqbypass ghash_clmulni_intel snd_hda_codec_generic ledtrig_audio snd_hda_intel snd_intel_dspcfg soundwire_intel soundwire_generic_allocation snd_soc_core snd_compress soundwire_cadence aesni_intel snd_hda_codec libaes crypto_simd cryptd glue_helper rapl snd_hda_core snd_hwdep soundwire_bus snd_pcm iTCO_wdt intel_pmc_bxt iTCO_vendor_support pcspkr serio_raw snd_timer virtio_gpu sg virtio_dma_buf watchdog snd soundcore virtio_balloon drm_kms_helper evdev virtio_console joydev cec qemu_fw_cfg button drm fuse configfs virtio_rng rng_core ip_tables x_tables autofs4 ext4 crc16 mbcache jbd2 crc32c_generic hid_generic usbhid hid sr_mod cdrom virtio_blk virtio_net net_failover failover ahci libahci libata crct10dif_pclmul crct10dif_common crc32_pclmul xhci_pci crc32c_intel xhci_hcd i2c_i801 psmouse
[   31.246872]  i2c_smbus scsi_mod usbcore lpc_ich usb_common virtio_pci virtio_ring virtio
[   31.251572] ---[ end trace 7274ffc686bce986 ]---
[   31.252168] RIP: 0010:usercopy_abort+0x74/0x76
[   31.252766] Code: 6f 0e 92 51 48 0f 45 d6 49 c7 c3 d4 74 0f 92 4c 89 d1 57 48 c7 c6 c9 1b 0e 92 48 c7 c7 a0 75 0f 92 49 0f 45 f3 e8 a1 7a ff ff <0f> 0b 4c 89 e1 49 89 d8 44 89 ea 31 f6 48 29 c1 48 c7 c7 16 75 0f
[   31.254174] RSP: 0018:ffffa8e901117bd0 EFLAGS: 00010246
[   31.254905] RAX: 0000000000000067 RBX: 00000000000000c8 RCX: 0000000000000000
[   31.255663] RDX: 0000000000000000 RSI: ffff8ad67ec18a00 RDI: ffff8ad67ec18a00
[   31.256338] RBP: ffff8ad643d600ea R08: 0000000000000000 R09: ffffa8e9011179f8
[   31.256985] R10: ffffa8e9011179f0 R11: ffffffff926cb428 R12: ffff8ad643d60022
[   31.257649] R13: 0000000000000001 R14: 0000000000000000 R15: ffff8ad643cf9ac0
[   31.258273] FS:  00007f515f38d980(0000) GS:ffff8ad67ec00000(0000) knlGS:0000000000000000
[   31.258912] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   31.259618] CR2: 0000565061437320 CR3: 00000000026c6005 CR4: 0000000000370ef0
[   31.260471] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   31.261317] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400

diederik@prancing-pony:~$ ssh-add
Enter passphrase for /home/diederik/.ssh/id_rsa: 
Identity added: /home/diederik/.ssh/id_rsa (/home/diederik/.ssh/id_rsa)
Enter passphrase for /home/diederik/.ssh/id_ed25519: 
Identity added: /home/diederik/.ssh/id_ed25519 (didi.debian@cknow.org)
diederik@prancing-pony:~$ grep bullseye .ssh/config 
Host vm-bullseye
diederik@prancing-pony:~$ ssh vm-bullseye
Linux debian-bullseye 5.10.0-19-amd64 #1 SMP Debian 5.10.149-2 (2022-10-21) x86_64

The programs included with the Debian GNU/Linux system are free software;
the exact distribution terms for each program are described in the
individual files in /usr/share/doc/*/copyright.

Debian GNU/Linux comes with ABSOLUTELY NO WARRANTY, to the extent
permitted by applicable law.
Last login: Sat Nov 19 17:56:28 2022
Cannot open display "default display"
debian@debian-bullseye:~$ ls -lh /var/www/html/
total 12K
-rw-r--r-- 1 root root 11K Nov 19 14:40 index.html
debian@debian-bullseye:~$ mount /var/www/html/
Password for debian@//localhost/ftp: 
debian@debian-bullseye:~$ ls -lh /var/www/html/
total 100M
-rwxr-xr-x 1 debian debian 100M Nov 19 14:48 100Mzero
debian@debian-bullseye:~$ vim .ssh/authorized_keys 
debian@debian-bullseye:~$ ls -lh
total 251M
-rw-r--r-- 1 debian debian 100M Nov 19 17:40 100Mzero
-rw-r--r-- 1 debian debian 100M Nov 19 17:39 100Mzero2
-rwxr-xr-x 1 debian debian  525 Nov 19 17:36 bug900821
-rw-r--r-- 1 debian debian  51M Nov 19 17:33 linux-image-5.10.0-6-amd64_5.10.28-1_amd64.deb
debian@debian-bullseye:~$ uname -a
Linux debian-bullseye 5.10.0-19-amd64 #1 SMP Debian 5.10.149-2 (2022-10-21) x86_64 GNU/Linux
debian@debian-bullseye:~$ ./bug900821 
sha256sum should be:
   20492a4d0d84f8beb1767f6616229f85d44c2827b64bdbfb260ee12fa1109e0e

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 
Test completed
debian@debian-bullseye:~$ su -l
Password: 
su: Authentication failure
debian@debian-bullseye:~$ su -l
Password: 
Cannot open display "default display"
root@debian-bullseye:~# vim /etc/profile
root@debian-bullseye:~# vim /etc/fstab 
root@debian-bullseye:~# reboot
Connection to 192.168.122.2 closed by remote host.
Connection to 192.168.122.2 closed.
diederik@prancing-pony:~$ ssh vm-bullseye
Linux debian-bullseye 5.10.0-18-amd64 #1 SMP Debian 5.10.140-1 (2022-09-02) x86_64

The programs included with the Debian GNU/Linux system are free software;
the exact distribution terms for each program are described in the
individual files in /usr/share/doc/*/copyright.

Debian GNU/Linux comes with ABSOLUTELY NO WARRANTY, to the extent
permitted by applicable law.
Last login: Sat Nov 19 18:34:56 2022 from 192.168.122.1
debian@debian-bullseye:~$ su -l
Password: 
root@debian-bullseye:~# vim /etc/fstab 
root@debian-bullseye:~# vim /etc/fstab 
root@debian-bullseye:~# 
logout
debian@debian-bullseye:~$ mount /var/
backups/ cache/   lib/     local/   lock/    log/     mail/    opt/     run/     spool/   tmp/     www/     
debian@debian-bullseye:~$ mount /var/www/html/
debian@debian-bullseye:~$ ls -lh /var/www/html/
total 100M
-rwxr-xr-x 1 debian debian 100M Nov 19 14:48 100Mzero
debian@debian-bullseye:~$ uname -a
Linux debian-bullseye 5.10.0-18-amd64 #1 SMP Debian 5.10.140-1 (2022-09-02) x86_64 GNU/Linux
debian@debian-bullseye:~$ ./bug900821 
sha256sum should be:
   20492a4d0d84f8beb1767f6616229f85d44c2827b64bdbfb260ee12fa1109e0e

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 
Test completed
debian@debian-bullseye:~$ su -l
Password: 
root@debian-bullseye:~# reboot
Connection to 192.168.122.2 closed by remote host.
Connection to 192.168.122.2 closed.
diederik@prancing-pony:~$ ssh vm-bullseye
Linux debian-bullseye 5.10.0-6-amd64 #1 SMP Debian 5.10.28-1 (2021-04-09) x86_64

The programs included with the Debian GNU/Linux system are free software;
the exact distribution terms for each program are described in the
individual files in /usr/share/doc/*/copyright.

Debian GNU/Linux comes with ABSOLUTELY NO WARRANTY, to the extent
permitted by applicable law.
Last login: Sat Nov 19 18:40:05 2022 from 192.168.122.1
debian@debian-bullseye:~$ uname -a
Linux debian-bullseye 5.10.0-6-amd64 #1 SMP Debian 5.10.28-1 (2021-04-09) x86_64 GNU/Linux
debian@debian-bullseye:~$ mount /var/www/html/
debian@debian-bullseye:~$ ls -lh /var/www/html/
total 100M
-rwxr-xr-x 1 debian debian 100M Nov 19 14:48 100Mzero
debian@debian-bullseye:~$ ./bug900821 
sha256sum should be:
   20492a4d0d84f8beb1767f6616229f85d44c2827b64bdbfb260ee12fa1109e0e

. 
Message from syslogd@debian-bullseye at Nov 19 18:43:22 ...
 kernel:[   40.266711] usercopy: Kernel memory exposure attempt detected from SLUB object 'vm_area_struct' (offset 0, size 117)!

^CConnection to 192.168.122.2 closed by remote host.
Connection to 192.168.122.2 closed.
diederik@prancing-pony:~$ ssh vm-bullseye
Linux debian-bullseye 5.10.0-6-amd64 #1 SMP Debian 5.10.28-1 (2021-04-09) x86_64

The programs included with the Debian GNU/Linux system are free software;
the exact distribution terms for each program are described in the
individual files in /usr/share/doc/*/copyright.

Debian GNU/Linux comes with ABSOLUTELY NO WARRANTY, to the extent
permitted by applicable law.
Last login: Sat Nov 19 18:43:06 2022 from 192.168.122.1
debian@debian-bullseye:~$ mount /var/www/html/
debian@debian-bullseye:~$ ./bug900821 
sha256sum should be:
   20492a4d0d84f8beb1767f6616229f85d44c2827b64bdbfb260ee12fa1109e0e

. 
Bug 900821 triggered! Calculated SHA256: 22df5972e4850c1894b84c19031c774fd1a76b4b61f8304724f8dc6062313f15
debian@debian-bullseye:~$ ls -lh /var/www/html/
total 100M
-rwxr-xr-x 1 debian debian 100M Nov 19 14:48 100Mzero
debian@debian-bullseye:~$ ls -lh
total 354M
-rw-r--r-- 1 debian debian 100M Nov 19 17:40 100Mzero
-rw-r--r-- 1 debian debian 100M Nov 19 17:39 100Mzero2
-rwxr-xr-x 1 debian debian  525 Nov 19 17:36 bug900821
-rw-r--r-- 1 debian debian  51M Nov 19 18:54 linux-image-5.10.0-6-amd64_5.10.28-1_amd64.deb
-rw-r--r-- 1 debian debian  52M Nov 19 18:54 linux-image-5.10.0-7-amd64_5.10.40-1_amd64.deb
-rw-r--r-- 1 debian debian  52M Nov 19 18:54 linux-image-5.10.0-9-amd64_5.10.70-1_amd64.deb
debian@debian-bullseye:~$ sha256sum /var/www/html/100Mzero 
20492a4d0d84f8beb1767f6616229f85d44c2827b64bdbfb260ee12fa1109e0e  /var/www/html/100Mzero
debian@debian-bullseye:~$ su -l
Password: 
root@debian-bullseye:~# ls -lh
total 0
root@debian-bullseye:~# dpkg -i /home/debian/linux-image-5.10.0-7-amd64_5.10.40-1_amd64.deb 
Selecting previously unselected package linux-image-5.10.0-7-amd64.
(Reading database ... 42469 files and directories currently installed.)
Preparing to unpack .../linux-image-5.10.0-7-amd64_5.10.40-1_amd64.deb ...
Unpacking linux-image-5.10.0-7-amd64 (5.10.40-1) ...
Setting up linux-image-5.10.0-7-amd64 (5.10.40-1) ...
I: /vmlinuz.old is now a symlink to boot/vmlinuz-5.10.0-6-amd64
I: /initrd.img.old is now a symlink to boot/initrd.img-5.10.0-6-amd64
I: /vmlinuz is now a symlink to boot/vmlinuz-5.10.0-7-amd64
I: /initrd.img is now a symlink to boot/initrd.img-5.10.0-7-amd64
/etc/kernel/postinst.d/initramfs-tools:
update-initramfs: Generating /boot/initrd.img-5.10.0-7-amd64
/etc/kernel/postinst.d/zz-update-grub:
Generating grub configuration file ...
Found linux image: /boot/vmlinuz-5.10.0-19-amd64
Found initrd image: /boot/initrd.img-5.10.0-19-amd64
Found linux image: /boot/vmlinuz-5.10.0-18-amd64
Found initrd image: /boot/initrd.img-5.10.0-18-amd64
Found linux image: /boot/vmlinuz-5.10.0-7-amd64
Found initrd image: /boot/initrd.img-5.10.0-7-amd64
Found linux image: /boot/vmlinuz-5.10.0-6-amd64
Found initrd image: /boot/initrd.img-5.10.0-6-amd64
Warning: os-prober will be executed to detect other bootable partitions.
Its output will be used to detect bootable binaries on them and create new boot entries.
done
root@debian-bullseye:~# dpkg -i /home/debian/linux-image-5.10.0-9-amd64_5.10.70-1_amd64.deb 
Selecting previously unselected package linux-image-5.10.0-9-amd64.
(Reading database ... 47240 files and directories currently installed.)
Preparing to unpack .../linux-image-5.10.0-9-amd64_5.10.70-1_amd64.deb ...
Unpacking linux-image-5.10.0-9-amd64 (5.10.70-1) ...
Setting up linux-image-5.10.0-9-amd64 (5.10.70-1) ...
I: /vmlinuz.old is now a symlink to boot/vmlinuz-5.10.0-7-amd64
I: /initrd.img.old is now a symlink to boot/initrd.img-5.10.0-7-amd64
I: /vmlinuz is now a symlink to boot/vmlinuz-5.10.0-9-amd64
I: /initrd.img is now a symlink to boot/initrd.img-5.10.0-9-amd64
/etc/kernel/postinst.d/initramfs-tools:
update-initramfs: Generating /boot/initrd.img-5.10.0-9-amd64
/etc/kernel/postinst.d/zz-update-grub:
Generating grub configuration file ...
Found linux image: /boot/vmlinuz-5.10.0-19-amd64
Found initrd image: /boot/initrd.img-5.10.0-19-amd64
Found linux image: /boot/vmlinuz-5.10.0-18-amd64
Found initrd image: /boot/initrd.img-5.10.0-18-amd64
Found linux image: /boot/vmlinuz-5.10.0-9-amd64
Found initrd image: /boot/initrd.img-5.10.0-9-amd64
Found linux image: /boot/vmlinuz-5.10.0-7-amd64
Found initrd image: /boot/initrd.img-5.10.0-7-amd64
Found linux image: /boot/vmlinuz-5.10.0-6-amd64
Found initrd image: /boot/initrd.img-5.10.0-6-amd64
Warning: os-prober will be executed to detect other bootable partitions.
Its output will be used to detect bootable binaries on them and create new boot entries.
done
root@debian-bullseye:~# uname -a
Linux debian-bullseye 5.10.0-6-amd64 #1 SMP Debian 5.10.28-1 (2021-04-09) x86_64 GNU/Linux
root@debian-bullseye:~# reboot
Connection to 192.168.122.2 closed by remote host.
Connection to 192.168.122.2 closed.
diederik@prancing-pony:~$ ssh vm-bullseye
Linux debian-bullseye 5.10.0-7-amd64 #1 SMP Debian 5.10.40-1 (2021-05-28) x86_64

The programs included with the Debian GNU/Linux system are free software;
the exact distribution terms for each program are described in the
individual files in /usr/share/doc/*/copyright.

Debian GNU/Linux comes with ABSOLUTELY NO WARRANTY, to the extent
permitted by applicable law.
Last login: Sat Nov 19 18:51:08 2022 from 192.168.122.1
debian@debian-bullseye:~$ mount /var/www/html/
debian@debian-bullseye:~$ sha256sum /var/www/html/100Mzero 
20492a4d0d84f8beb1767f6616229f85d44c2827b64bdbfb260ee12fa1109e0e  /var/www/html/100Mzero
debian@debian-bullseye:~$ ./bug900821 
sha256sum should be:
   20492a4d0d84f8beb1767f6616229f85d44c2827b64bdbfb260ee12fa1109e0e

. 
Bug 900821 triggered! Calculated SHA256: e0aaf21ee59026afa1c124145f8acb33a36a7533412f6ce3b284b837bbc527cf
debian@debian-bullseye:~$ su -l
Password: 
root@debian-bullseye:~# reboot
Connection to 192.168.122.2 closed by remote host.
Connection to 192.168.122.2 closed.
diederik@prancing-pony:~$ ssh vm-bullseye
Linux debian-bullseye 5.10.0-9-amd64 #1 SMP Debian 5.10.70-1 (2021-09-30) x86_64

The programs included with the Debian GNU/Linux system are free software;
the exact distribution terms for each program are described in the
individual files in /usr/share/doc/*/copyright.

Debian GNU/Linux comes with ABSOLUTELY NO WARRANTY, to the extent
permitted by applicable law.
Last login: Sat Nov 19 18:57:33 2022 from 192.168.122.1
debian@debian-bullseye:~$ mount /var/www/html/
debian@debian-bullseye:~$ sha256sum /var/www/html/100Mzero 
20492a4d0d84f8beb1767f6616229f85d44c2827b64bdbfb260ee12fa1109e0e  /var/www/html/100Mzero
debian@debian-bullseye:~$ ./bug900821 
sha256sum should be:
   20492a4d0d84f8beb1767f6616229f85d44c2827b64bdbfb260ee12fa1109e0e

. 
Message from syslogd@debian-bullseye at Nov 19 18:59:16 ...
 kernel:[   31.245676] usercopy: Kernel memory exposure attempt detected from SLUB object 'task_struct' (offset 34, size 200)!


^C
su -l
root

Connection to 192.168.122.2 closed by remote host.
Connection to 192.168.122.2 closed.
diederik@prancing-pony:~$ ssh vm-bullseye
Linux debian-bullseye 5.10.0-9-amd64 #1 SMP Debian 5.10.70-1 (2021-09-30) x86_64

The programs included with the Debian GNU/Linux system are free software;
the exact distribution terms for each program are described in the
individual files in /usr/share/doc/*/copyright.

Debian GNU/Linux comes with ABSOLUTELY NO WARRANTY, to the extent
permitted by applicable law.
Last login: Sat Nov 19 18:59:02 2022 from 192.168.122.1
debian@debian-bullseye:~$ ls -lh
total 354M
-rw-r--r-- 1 debian debian 100M Nov 19 17:40 100Mzero
-rw-r--r-- 1 debian debian 100M Nov 19 17:39 100Mzero2
-rwxr-xr-x 1 debian debian  525 Nov 19 17:36 bug900821
-rw-r--r-- 1 debian debian  51M Nov 19 18:54 linux-image-5.10.0-6-amd64_5.10.28-1_amd64.deb
-rw-r--r-- 1 debian debian  52M Nov 19 18:54 linux-image-5.10.0-7-amd64_5.10.40-1_amd64.deb
-rw-r--r-- 1 debian debian  52M Nov 19 18:54 linux-image-5.10.0-9-amd64_5.10.70-1_amd64.deb
debian@debian-bullseye:~$ rm 100Mzero2 
debian@debian-bullseye:~$ su -l
Password: 
root@debian-bullseye:~# ls -lh
total 64K
-rw-r--r-- 1 root root 61K Nov 19 19:05 dmesg-crash-5.10.70-1.txt
root@debian-bullseye:~# cp dmesg-crash-5.10.70-1.txt /home/debian/
root@debian-bullseye:~# 
logout
debian@debian-bullseye:~$ mount /var/www/html/
debian@debian-bullseye:~$ sha256sum /var/www/html/100Mzero 
20492a4d0d84f8beb1767f6616229f85d44c2827b64bdbfb260ee12fa1109e0e  /var/www/html/100Mzero
debian@debian-bullseye:~$ ./bug900821 
sha256sum should be:
   20492a4d0d84f8beb1767f6616229f85d44c2827b64bdbfb260ee12fa1109e0e

. 
Bug 900821 triggered! Calculated SHA256: 1c9d0d017327e399af3765a993a2013d6380c3a47abfd48d39479580a21d2975
debian@debian-bullseye:~$ su -l
Password: 
root@debian-bullseye:~# ls -lh /home/debian/linux-image-5.10.0-*
-rw-r--r-- 1 debian debian 52M Nov 19 19:12 /home/debian/linux-image-5.10.0-13-amd64_5.10.106-1_amd64.deb
-rw-r--r-- 1 debian debian 51M Nov 19 18:54 /home/debian/linux-image-5.10.0-6-amd64_5.10.28-1_amd64.deb
-rw-r--r-- 1 debian debian 52M Nov 19 18:54 /home/debian/linux-image-5.10.0-7-amd64_5.10.40-1_amd64.deb
-rw-r--r-- 1 debian debian 52M Nov 19 18:54 /home/debian/linux-image-5.10.0-9-amd64_5.10.70-1_amd64.deb
root@debian-bullseye:~# dpkg -i /home/debian/linux-image-5.10.0-13-amd64_5.10.106-1_amd64.deb 
Selecting previously unselected package linux-image-5.10.0-13-amd64.
(Reading database ... 52009 files and directories currently installed.)
Preparing to unpack .../linux-image-5.10.0-13-amd64_5.10.106-1_amd64.deb ...
Unpacking linux-image-5.10.0-13-amd64 (5.10.106-1) ...
Setting up linux-image-5.10.0-13-amd64 (5.10.106-1) ...
I: /vmlinuz.old is now a symlink to boot/vmlinuz-5.10.0-9-amd64
I: /initrd.img.old is now a symlink to boot/initrd.img-5.10.0-9-amd64
I: /vmlinuz is now a symlink to boot/vmlinuz-5.10.0-13-amd64
I: /initrd.img is now a symlink to boot/initrd.img-5.10.0-13-amd64
/etc/kernel/postinst.d/initramfs-tools:
update-initramfs: Generating /boot/initrd.img-5.10.0-13-amd64
/etc/kernel/postinst.d/zz-update-grub:
Generating grub configuration file ...
Found linux image: /boot/vmlinuz-5.10.0-19-amd64
Found initrd image: /boot/initrd.img-5.10.0-19-amd64
Found linux image: /boot/vmlinuz-5.10.0-18-amd64
Found initrd image: /boot/initrd.img-5.10.0-18-amd64
Found linux image: /boot/vmlinuz-5.10.0-13-amd64
Found initrd image: /boot/initrd.img-5.10.0-13-amd64
Found linux image: /boot/vmlinuz-5.10.0-9-amd64
Found initrd image: /boot/initrd.img-5.10.0-9-amd64
Found linux image: /boot/vmlinuz-5.10.0-7-amd64
Found initrd image: /boot/initrd.img-5.10.0-7-amd64
Found linux image: /boot/vmlinuz-5.10.0-6-amd64
Found initrd image: /boot/initrd.img-5.10.0-6-amd64
Warning: os-prober will be executed to detect other bootable partitions.
Its output will be used to detect bootable binaries on them and create new boot entries.
done
root@debian-bullseye:~# reboot
Connection to 192.168.122.2 closed by remote host.
Connection to 192.168.122.2 closed.
diederik@prancing-pony:~$ ssh vm-bullseye
Linux debian-bullseye 5.10.0-13-amd64 #1 SMP Debian 5.10.106-1 (2022-03-17) x86_64

The programs included with the Debian GNU/Linux system are free software;
the exact distribution terms for each program are described in the
individual files in /usr/share/doc/*/copyright.

Debian GNU/Linux comes with ABSOLUTELY NO WARRANTY, to the extent
permitted by applicable law.
Last login: Sat Nov 19 19:11:33 2022 from 192.168.122.1
debian@debian-bullseye:~$ mount /var/www/html/
debian@debian-bullseye:~$ sha256sum /var/www/html/100Mzero 
20492a4d0d84f8beb1767f6616229f85d44c2827b64bdbfb260ee12fa1109e0e  /var/www/html/100Mzero
debian@debian-bullseye:~$ ./bug900821 
sha256sum should be:
   20492a4d0d84f8beb1767f6616229f85d44c2827b64bdbfb260ee12fa1109e0e

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 
Test completed
debian@debian-bullseye:~$ su -l
Password: 
root@debian-bullseye:~# dpkg -i /home/debian/linux-image-5.10.0-11-amd64_5.10.92-2_amd64.deb 
Selecting previously unselected package linux-image-5.10.0-11-amd64.
(Reading database ... 56780 files and directories currently installed.)
Preparing to unpack .../linux-image-5.10.0-11-amd64_5.10.92-2_amd64.deb ...
Unpacking linux-image-5.10.0-11-amd64 (5.10.92-2) ...
Setting up linux-image-5.10.0-11-amd64 (5.10.92-2) ...
I: /vmlinuz.old is now a symlink to boot/vmlinuz-5.10.0-13-amd64
I: /initrd.img.old is now a symlink to boot/initrd.img-5.10.0-13-amd64
I: /vmlinuz is now a symlink to boot/vmlinuz-5.10.0-11-amd64
I: /initrd.img is now a symlink to boot/initrd.img-5.10.0-11-amd64
/etc/kernel/postinst.d/initramfs-tools:
update-initramfs: Generating /boot/initrd.img-5.10.0-11-amd64
/etc/kernel/postinst.d/zz-update-grub:
Generating grub configuration file ...
Found linux image: /boot/vmlinuz-5.10.0-19-amd64
Found initrd image: /boot/initrd.img-5.10.0-19-amd64
Found linux image: /boot/vmlinuz-5.10.0-18-amd64
Found initrd image: /boot/initrd.img-5.10.0-18-amd64
Found linux image: /boot/vmlinuz-5.10.0-13-amd64
Found initrd image: /boot/initrd.img-5.10.0-13-amd64
Found linux image: /boot/vmlinuz-5.10.0-11-amd64
Found initrd image: /boot/initrd.img-5.10.0-11-amd64
Found linux image: /boot/vmlinuz-5.10.0-9-amd64
Found initrd image: /boot/initrd.img-5.10.0-9-amd64
Found linux image: /boot/vmlinuz-5.10.0-7-amd64
Found initrd image: /boot/initrd.img-5.10.0-7-amd64
Found linux image: /boot/vmlinuz-5.10.0-6-amd64
Found initrd image: /boot/initrd.img-5.10.0-6-amd64
Warning: os-prober will be executed to detect other bootable partitions.
Its output will be used to detect bootable binaries on them and create new boot entries.
done
root@debian-bullseye:~# reboot
Connection to 192.168.122.2 closed by remote host.
Connection to 192.168.122.2 closed.
diederik@prancing-pony:~$ ssh vm-bullseye
Linux debian-bullseye 5.10.0-11-amd64 #1 SMP Debian 5.10.92-2 (2022-02-28) x86_64

The programs included with the Debian GNU/Linux system are free software;
the exact distribution terms for each program are described in the
individual files in /usr/share/doc/*/copyright.

Debian GNU/Linux comes with ABSOLUTELY NO WARRANTY, to the extent
permitted by applicable law.
Last login: Sat Nov 19 19:18:31 2022 from 192.168.122.1
debian@debian-bullseye:~$ mount /var/www/html/
debian@debian-bullseye:~$ sha256sum /var/www/html/100Mzero 
20492a4d0d84f8beb1767f6616229f85d44c2827b64bdbfb260ee12fa1109e0e  /var/www/html/100Mzero
debian@debian-bullseye:~$ ./bug900821 
sha256sum should be:
   20492a4d0d84f8beb1767f6616229f85d44c2827b64bdbfb260ee12fa1109e0e

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 
Test completed
debian@debian-bullseye:~$ ./bug900821 
sha256sum should be:
   20492a4d0d84f8beb1767f6616229f85d44c2827b64bdbfb260ee12fa1109e0e

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 
Test completed
debian@debian-bullseye:~$ su -l
Password: 
root@debian-bullseye:~# dpkg -i /home/debian/linux-image-5.10.0-10-amd64_5.10.84-1_amd64.deb 
Selecting previously unselected package linux-image-5.10.0-10-amd64.
(Reading database ... 61551 files and directories currently installed.)
Preparing to unpack .../linux-image-5.10.0-10-amd64_5.10.84-1_amd64.deb ...
Unpacking linux-image-5.10.0-10-amd64 (5.10.84-1) ...
Setting up linux-image-5.10.0-10-amd64 (5.10.84-1) ...
I: /vmlinuz.old is now a symlink to boot/vmlinuz-5.10.0-11-amd64
I: /initrd.img.old is now a symlink to boot/initrd.img-5.10.0-11-amd64
I: /vmlinuz is now a symlink to boot/vmlinuz-5.10.0-10-amd64
I: /initrd.img is now a symlink to boot/initrd.img-5.10.0-10-amd64
/etc/kernel/postinst.d/initramfs-tools:
update-initramfs: Generating /boot/initrd.img-5.10.0-10-amd64
/etc/kernel/postinst.d/zz-update-grub:
Generating grub configuration file ...
Found linux image: /boot/vmlinuz-5.10.0-19-amd64
Found initrd image: /boot/initrd.img-5.10.0-19-amd64
Found linux image: /boot/vmlinuz-5.10.0-18-amd64
Found initrd image: /boot/initrd.img-5.10.0-18-amd64
Found linux image: /boot/vmlinuz-5.10.0-13-amd64
Found initrd image: /boot/initrd.img-5.10.0-13-amd64
Found linux image: /boot/vmlinuz-5.10.0-11-amd64
Found initrd image: /boot/initrd.img-5.10.0-11-amd64
Found linux image: /boot/vmlinuz-5.10.0-10-amd64
Found initrd image: /boot/initrd.img-5.10.0-10-amd64
Found linux image: /boot/vmlinuz-5.10.0-9-amd64
Found initrd image: /boot/initrd.img-5.10.0-9-amd64
Found linux image: /boot/vmlinuz-5.10.0-7-amd64
Found initrd image: /boot/initrd.img-5.10.0-7-amd64
Found linux image: /boot/vmlinuz-5.10.0-6-amd64
Found initrd image: /boot/initrd.img-5.10.0-6-amd64
Warning: os-prober will be executed to detect other bootable partitions.
Its output will be used to detect bootable binaries on them and create new boot entries.
done
root@debian-bullseye:~# reboot
Connection to 192.168.122.2 closed by remote host.
Connection to 192.168.122.2 closed.
diederik@prancing-pony:~$ ssh vm-bullseye
Linux debian-bullseye 5.10.0-10-amd64 #1 SMP Debian 5.10.84-1 (2021-12-08) x86_64

The programs included with the Debian GNU/Linux system are free software;
the exact distribution terms for each program are described in the
individual files in /usr/share/doc/*/copyright.

Debian GNU/Linux comes with ABSOLUTELY NO WARRANTY, to the extent
permitted by applicable law.
Last login: Sat Nov 19 19:24:26 2022 from 192.168.122.1
debian@debian-bullseye:~$ mount /var/www/html/
debian@debian-bullseye:~$ sha256sum /var/www/html/100Mzero 
20492a4d0d84f8beb1767f6616229f85d44c2827b64bdbfb260ee12fa1109e0e  /var/www/html/100Mzero
debian@debian-bullseye:~$ ./bug900821 
sha256sum should be:
   20492a4d0d84f8beb1767f6616229f85d44c2827b64bdbfb260ee12fa1109e0e

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 
Test completed
debian@debian-bullseye:~$ ./bug900821 
sha256sum should be:
   20492a4d0d84f8beb1767f6616229f85d44c2827b64bdbfb260ee12fa1109e0e

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 
Test completed
debian@debian-bullseye:~$ su -l
Password: 
root@debian-bullseye:~# reboot
Connection to 192.168.122.2 closed by remote host.
Connection to 192.168.122.2 closed.
diederik@prancing-pony:~$ ssh vm-bullseye
Linux debian-bullseye 5.10.0-9-amd64 #1 SMP Debian 5.10.70-1 (2021-09-30) x86_64

The programs included with the Debian GNU/Linux system are free software;
the exact distribution terms for each program are described in the
individual files in /usr/share/doc/*/copyright.

Debian GNU/Linux comes with ABSOLUTELY NO WARRANTY, to the extent
permitted by applicable law.
Last login: Sat Nov 19 20:25:54 2022 from 192.168.122.1
debian@debian-bullseye:~$ mount /var/www/html/
debian@debian-bullseye:~$ sha256sum /var/www/html/100Mzero 
20492a4d0d84f8beb1767f6616229f85d44c2827b64bdbfb260ee12fa1109e0e  /var/www/html/100Mzero
debian@debian-bullseye:~$ ./bug900821 
sha256sum should be:
   20492a4d0d84f8beb1767f6616229f85d44c2827b64bdbfb260ee12fa1109e0e

. 
Message from syslogd@debian-bullseye at Nov 19 20:29:59 ...
 kernel:[   31.639322] usercopy: Kernel memory exposure attempt detected from SLUB object 'vm_area_struct' (offset 9, size 108)!


Connection to 192.168.122.2 closed by remote host.
Connection to 192.168.122.2 closed.
diederik@prancing-pony:~$ ssh vm-bullseye
Linux debian-bullseye 5.10.0-19-amd64 #1 SMP Debian 5.10.149-2 (2022-10-21) x86_64

The programs included with the Debian GNU/Linux system are free software;
the exact distribution terms for each program are described in the
individual files in /usr/share/doc/*/copyright.

Debian GNU/Linux comes with ABSOLUTELY NO WARRANTY, to the extent
permitted by applicable law.
Last login: Sat Nov 19 20:29:43 2022 from 192.168.122.1
debian@debian-bullseye:~$ grep ftp /etc/fstab 
//localhost/ftp /var/www/html   cifs    username=debian,password=root,noauto,user       0       0
debian@debian-bullseye:~$ cat bug900821 
#!/bin/sh
#/srv/ftp/100Mzero
SHA256_STORED="20492a4d0d84f8beb1767f6616229f85d44c2827b64bdbfb260ee12fa1109e0e"

echo "sha256sum should be:"
echo "   $SHA256_STORED"
echo ""

i=0
while [ $i -ne 100 ]
do
        i=$((i + 1))
        #printf "$i "
        printf ". "
        SHA256_CALC="$(wget http://localhost/100Mzero -O - 2>/dev/null | sha256sum | awk '{ print $1 }')"
        if [ "$SHA256_CALC" != "$SHA256_STORED" ] ; then
               printf "\nBug 900821 triggered! Calculated SHA256: %s\n" "$SHA256_CALC"
               exit 1
        fi
done
printf "\nTest completed\n"
debian@debian-bullseye:~$

Attachment: signature.asc
Description: This is a digitally signed message part.