failed to run ["ssh" "-p" "22" "-F" "/dev/null" "-o" "UserKnownHostsFile=/dev/null" "-o" "IdentitiesOnly=yes" "-o" "BatchMode=yes" "-o" "StrictHostKeyChecking=no" "-o" "ConnectTimeout=10" "root@10.128.1.175" "pwd"]: exit status 255 ssh: connect to host 10.128.1.175 port 22: Connection timed out Pseudo-terminal will not be allocated because stdin is not a terminal. Warning: Permanently added '[us-central1-ssh-serialport.googleapis.com]:9600' (ECDSA) to the list of known hosts. SeaBIOS (version 1.8.2-google) Total RAM Size = 0x0000000200000000 = 8192 MiB CPUs found: 2 Max CPUs supported: 2 SeaBIOS (version 1.8.2-google) Machine UUID 086f95b8-7ada-47d5-ae28-d84de4582e6d found virtio-scsi at 0:3 virtio-scsi vendor='Google' product='PersistentDisk' rev='1' type=0 removable=0 virtio-scsi blksize=512 sectors=4194304 = 2048 MiB drive 0x000f25d0: PCHS=0/0/0 translation=lba LCHS=520/128/63 s=4194304 Sending Seabios boot VM event. Booting from Hard Disk 0... [ 0.000000][ T0] Linux version syzkaller (syzkaller@syzkaller) (Debian clang version 22.1.8 (++20260613092233+e80beda6e255-1~exp1~20260613092250.77), Debian LLD 22.1.8) #0 SMP PREEMPT_DYNAMIC now [ 0.000000][ T0] Command line: BOOT_IMAGE=/boot/bzImage root=/dev/sda1 console=ttyS0 [ 0.000000][ T0] KERNEL supported cpus: [ 0.000000][ T0] Intel GenuineIntel [ 0.000000][ T0] AMD AuthenticAMD [ 0.000000][ T0] x86/CPU: Model not found in latest microcode list [ 0.000000][ T0] Bserialport: Connected to syzkaller.us-central1-c.ci-upstream-linux-next-kasan-gce-root-test-1 port 1 (session ID: 251c93cf707542804142854c7ba1658f154cb931cbf761230039f3a4742e4976, active connections: 1). IOS-provided physical RAM map: [ 0.000000][ T0] BIOS-e820: [mem 0x0000000000000000-0x000000000009fbff] System RAM [ 0.000000][ T0] BIOS-e820: [mem 0x000000000009fc00-0x000000000009ffff] device reserved [ 0.000000][ T0] BIOS-e820: [gap 0x00000000000a0000-0x00000000000effff] [ 0.000000][ T0] BIOS-e820: [mem 0x00000000000f0000-0x00000000000fffff] device reserved [ 0.000000][ T0] BIOS-e820: [mem 0x0000000000100000-0x00000000bfffcfff] System RAM [ 0.000000][ T0] BIOS-e820: [mem 0x00000000bfffd000-0x00000000bfffffff] device reserved [ 0.000000][ T0] BIOS-e820: [gap 0x00000000c0000000-0x00000000fffbbfff] [ 0.000000][ T0] BIOS-e820: [mem 0x00000000fffbc000-0x00000000ffffffff] device reserved [ 0.000000][ T0] BIOS-e820: [mem 0x0000000100000000-0x000000023fffffff] System RAM [ 0.000000][ T0] printk: legacy bootconsole [earlyser0] enabled [ 0.000000][ T0] ERROR: earlyprintk= earlyser already used [ 0.000000][ T0] ERROR: earlyprintk= earlyser already used [ 0.000000][ T0] Hash pointers mode set to never. [ 0.000000][ T0] Malformed early option 'vsyscall' [ 0.000000][ T0] nopcid: PCID feature disabled [ 0.000000][ T0] NX (Execute Disable) protection: active [ 0.000000][ T0] APIC: Static calls initialized [ 0.000000][ T0] DMI: SMBIOS 2.4 present. [ 0.000000][ T0] DMI: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026 [ 0.000000][ T0] DMI: Memory slots populated: 1/1 [ 0.000000][ T0] Hypervisor detected: KVM [ 0.000000][ T0] last_pfn = 0xbfffd max_arch_pfn = 0x400000000 [ 0.000000][ T0] kvm-clock: Using msrs 4b564d01 and 4b564d00 [ 0.000007][ T0] kvm-clock: using sched offset of 9154479968 cycles [ 0.003173][ T0] clocksource: kvm-clock: mask: 0xffffffffffffffff max_cycles: 0x1cd42e4dffb, max_idle_ns: 881590591483 ns [ 0.011473][ T0] tsc: Detected 2199.998 MHz processor [ 0.017702][ T0] last_pfn = 0x240000 max_arch_pfn = 0x400000000 [ 0.020931][ T0] MTRR map: 4 entries (3 fixed + 1 variable; max 19), built from 8 variable MTRRs [ 0.024632][ T0] x86/PAT: Configuration [0-7]: WB WC UC- UC WB WP UC- WT [ 0.027927][ T0] last_pfn = 0xbfffd max_arch_pfn = 0x400000000 [ 0.035035][ T0] found SMP MP-table at [mem 0x000f2890-0x000f289f] [ 0.037916][ T0] Using GB pages for direct mapping [ 0.044621][ T0] ACPI: Early table checksum verification disabled [ 0.048053][ T0] ACPI: RSDP 0x00000000000F2610 000014 (v00 Google) [ 0.050862][ T0] ACPI: RSDT 0x00000000BFFFFFB0 000038 (v01 Google GOOGRSDT 00000001 GOOG 00000001) [ 0.057718][ T0] ACPI: FACP 0x00000000BFFFF3B0 000114 (v06 Google GOOGFACP 00000001 GOOG 00000001) [ 0.061262][ T0] ACPI: DSDT 0x00000000BFFFD5C0 001DED (v02 Google GOOGDSDT 00000001 GOOG 00000001) [ 0.065698][ T0] ACPI: FACS 0x00000000BFFFD580 000040 [ 0.068679][ T0] ACPI: FACS 0x00000000BFFFD580 000040 [ 0.072103][ T0] ACPI: SRAT 0x00000000BFFFFEA0 0000C8 (v03 Google GOOGSRAT 00000001 GOOG 00000001) [ 0.076469][ T0] ACPI: APIC 0x00000000BFFFFDF0 000076 (v05 Google GOOGAPIC 00000001 GOOG 00000001) [ 0.080636][ T0] ACPI: SSDT 0x00000000BFFFF4D0 000914 (v02 Google GOOGSSDT 00000001 GOOG 00000001) [ 0.086825][ T0] ACPI: WAET 0x00000000BFFFFE70 000028 (v01 Google GOOGWAET 00000001 GOOG 00000001) [ 0.094872][ T0] ACPI: Reserving FACP table memory at [mem 0xbffff3b0-0xbffff4c3] [ 0.101098][ T0] ACPI: Reserving DSDT table memory at [mem 0xbfffd5c0-0xbffff3ac] [ 0.105745][ T0] ACPI: Reserving FACS table memory at [mem 0xbfffd580-0xbfffd5bf] [ 0.110003][ T0] ACPI: Reserving FACS table memory at [mem 0xbfffd580-0xbfffd5bf] [ 0.113596][ T0] ACPI: Reserving SRAT table memory at [mem 0xbffffea0-0xbfffff67] [ 0.116972][ T0] ACPI: Reserving APIC table memory at [mem 0xbffffdf0-0xbffffe65] [ 0.122624][ T0] ACPI: Reserving SSDT table memory at [mem 0xbffff4d0-0xbffffde3] [ 0.127073][ T0] ACPI: Reserving WAET table memory at [mem 0xbffffe70-0xbffffe97] [ 0.131723][ T0] ACPI: SRAT: Node 0 PXM 0 [mem 0x00000000-0x0009ffff] [ 0.134496][ T0] ACPI: SRAT: Node 0 PXM 0 [mem 0x00100000-0xbfffffff] [ 0.137828][ T0] ACPI: SRAT: Node 0 PXM 0 [mem 0x100000000-0x23fffffff] [ 0.140499][ T0] NUMA: Node 0 [mem 0x00001000-0x0009ffff] + [mem 0x00100000-0xbfffffff] -> [mem 0x00001000-0xbfffffff] [ 0.144876][ T0] NUMA: Node 0 [mem 0x00001000-0xbfffffff] + [mem 0x100000000-0x23fffffff] -> [mem 0x00001000-0x23fffffff] [ 0.150169][ T0] Faking node 0 at [mem 0x0000000000001000-0x0000000140000fff] (5120MB) [ 0.153734][ T0] Faking node 1 at [mem 0x0000000140001000-0x000000023fffffff] (4095MB) [ 0.157208][ T0] NODE_DATA(0) allocated [mem 0x13fffb100-0x140000fff] [ 0.162486][ T0] NODE_DATA(1) allocated [mem 0x23fff7100-0x23fffcfff] [ 0.679185][ T0] KernelAddressSanitizer initialized (generic) [ 0.682495][ T0] ACPI: PM-Timer IO Port: 0xb008 [ 0.685868][ T0] ACPI: LAPIC_NMI (acpi_id[0xff] dfl dfl lint[0x1]) [ 0.690042][ T0] IOAPIC[0]: apic_id 0, version 17, address 0xfec00000, GSI 0-23 [ 0.693011][ T0] ACPI: INT_SRC_OVR (bus 0 bus_irq 5 global_irq 5 high level) [ 0.698963][ T0] ACPI: INT_SRC_OVR (bus 0 bus_irq 9 global_irq 9 high level) [ 0.703134][ T0] ACPI: INT_SRC_OVR (bus 0 bus_irq 10 global_irq 10 high level) [ 0.707438][ T0] ACPI: INT_SRC_OVR (bus 0 bus_irq 11 global_irq 11 high level) [ 0.712651][ T0] ACPI: Using ACPI (MADT) for SMP configuration information [ 0.716472][ T0] CPU topo: Max. logical packages: 1 [ 0.723092][ T0] CPU topo: Max. logical nodes: 1 [ 0.729580][ T0] CPU topo: Num. nodes per package: 1 [ 0.735168][ T0] CPU topo: Max. logical dies: 1 [ 0.739391][ T0] CPU topo: Max. dies per package: 1 [ 0.743496][ T0] CPU topo: Max. threads per core: 2 [ 0.746636][ T0] CPU topo: Num. cores per package: 1 [ 0.749830][ T0] CPU topo: Num. threads per package: 2 [ 0.754202][ T0] CPU topo: Allowing 2 present CPUs plus 0 hotplug CPUs [ 0.760270][ T0] PM: hibernation: Registered nosave memory: [mem 0x00000000-0x00000fff] [ 0.765730][ T0] PM: hibernation: Registered nosave memory: [mem 0x0009f000-0x000fffff] [ 0.770861][ T0] PM: hibernation: Registered nosave memory: [mem 0xbfffd000-0xffffffff] [ 0.776281][ T0] [gap 0xc0000000-0xfffbbfff] available for PCI devices [ 0.780325][ T0] Booting paravirtualized kernel on KVM [ 0.783695][ T0] clocksource: refined-jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604462750000 ns [ 0.894783][ T0] Zone ranges: [ 0.896598][ T0] DMA [mem 0x0000000000001000-0x0000000000ffffff] [ 0.899322][ T0] DMA32 [mem 0x0000000001000000-0x00000000ffffffff] [ 0.902130][ T0] Normal [mem 0x0000000100000000-0x000000023fffffff] [ 0.905456][ T0] Device empty [ 0.906798][ T0] Movable zone start for each node [ 0.908311][ T0] Early memory node ranges [ 0.910047][ T0] node 0: [mem 0x0000000000001000-0x000000000009efff] [ 0.913403][ T0] node 0: [mem 0x0000000000100000-0x00000000bfffcfff] [ 0.916886][ T0] node 0: [mem 0x0000000100000000-0x0000000140000fff] [ 0.920690][ T0] node 1: [mem 0x0000000140001000-0x000000023fffffff] [ 0.925842][ T0] Initmem setup node 0 [mem 0x0000000000001000-0x0000000140000fff] [ 0.930692][ T0] Initmem setup node 1 [mem 0x0000000140001000-0x000000023fffffff] [ 1.004933][ T0] On node 0, zone DMA: 1 pages in unavailable ranges [ 1.008412][ T0] On node 0, zone DMA: 97 pages in unavailable ranges [ 1.071743][ T0] On node 0, zone Normal: 3 pages in unavailable ranges [ 1.134923][ T0] setup_percpu: NR_CPUS:8 nr_cpumask_bits:2 nr_cpu_ids:2 nr_node_ids:2 [ 1.138839][ T0] percpu: Embedded 71 pages/cpu s253768 r8192 d28856 u1048576 [ 1.143911][ T0] kvm-guest: PV spinlocks enabled [ 1.145998][ T0] PV qspinlock hash table entries: 256 (order: 0, 4096 bytes, linear) [ 1.150092][ T0] Kernel command line: earlyprintk=serial net.ifnames=0 sysctl.kernel.hung_task_all_cpu_backtrace=1 ima_policy=tcb nf-conntrack-ftp.ports=20000 nf-conntrack-tftp.ports=20000 nf-conntrack-sip.ports=20000 nf-conntrack-irc.ports=20000 nf-conntrack-sane.ports=20000 binder.debug_mask=0 rcupdate.rcu_expedited=1 rcupdate.rcu_cpu_stall_cputime=1 no_hash_pointers page_owner=on sysctl.vm.nr_hugepages=4 sysctl.vm.nr_overcommit_hugepages=4 secretmem.enable=1 sysctl.max_rcu_stall_to_panic=1 msr.allow_writes=off coredump_filter=0xffff root=/dev/sda console=ttyS0 vsyscall=native numa=fake=2 kvm-intel.nested=1 spec_store_bypass_disable=prctl nopcid vivid.n_devs=64 vivid.multiplanar=1,2,1,2,1,2,1,2,1,2,1,2,1,2,1,2,1,2,1,2,1,2,1,2,1,2,1,2,1,2,1,2,1,2,1,2,1,2,1,2,1,2,1,2,1,2,1,2,1,2,1,2,1,2,1,2,1,2,1,2,1,2,1,2 netrom.nr_ndevs=32 rose.rose_ndevs=32 smp.csd_lock_timeout=100000 watchdog_thresh=55 workqueue.watchdog_thresh=140 sysctl.net.core.netdev_unregister_timeout_secs=140 dummy_hcd.num=32 max_loop=32 nbds_max=32 \ [ 1.199623][ T0] Kernel command line: comedi.comedi_num_legacy_minors=4 panic_on_warn=1 BOOT_IMAGE=/boot/bzImage root=/dev/sda1 console=ttyS0 [ 1.211887][ T0] Unknown kernel command line parameters "nbds_max=32", will be passed to user space. [ 1.216404][ T0] random: crng init done [ 1.218035][ T0] printk: log buffer data + meta data: 262144 + 917504 = 1179648 bytes [ 1.221172][ T0] software IO TLB: area num 2. [ 1.251670][ T0] Fallback order for Node 0: 0 1 [ 1.251692][ T0] Fallback order for Node 1: 1 0 [ 1.251706][ T0] Built 2 zonelists, mobility grouping on. Total pages: 2097051 [ 1.258214][ T0] Policy zone: Normal [ 1.262149][ T0] mem auto-init: stack:all(zero), heap alloc:on, heap free:off [ 1.265218][ T0] stackdepot: allocating hash table via alloc_large_system_hash [ 1.268295][ T0] stackdepot hash table entries: 1048576 (order: 12, 16777216 bytes, linear) [ 1.275974][ T0] stackdepot: allocating space for 8192 stack pools via memblock [ 1.981382][ T0] ********************************************************** [ 1.984197][ T0] ** NOTICE NOTICE NOTICE NOTICE NOTICE NOTICE NOTICE ** [ 1.986910][ T0] ** ** [ 1.990152][ T0] ** This system shows unhashed kernel memory addresses ** [ 1.992852][ T0] ** via the console, logs, and other interfaces. This ** [ 1.995162][ T0] ** might reduce the security of your system. ** [ 1.997425][ T0] ** ** [ 2.004221][ T0] ** If you see this message and you are not debugging ** [ 2.008919][ T0] ** the kernel, report this immediately to your system ** [ 2.016014][ T0] ** administrator! ** [ 2.019026][ T0] ** ** [ 2.022075][ T0] ** Use hash_pointers=always to force this mode off ** [ 2.025170][ T0] ** ** [ 2.028268][ T0] ** NOTICE NOTICE NOTICE NOTICE NOTICE NOTICE NOTICE ** [ 2.032592][ T0] ********************************************************** [ 2.038916][ T0] SLUB: HWalign=64, Order=0-3, MinObjects=0, CPUs=2, Nodes=2 [ 2.185946][ T0] allocated 167772160 bytes of page_ext [ 2.189221][ T0] Node 0, zone DMA: page owner found early allocated 0 pages [ 2.206463][ T0] Node 0, zone DMA32: page owner found early allocated 21190 pages [ 2.214838][ T0] Node 0, zone Normal: page owner found early allocated 61 pages [ 2.229235][ T0] Node 1, zone Normal: page owner found early allocated 19847 pages [ 2.233268][ T0] Kernel/User page tables isolation: enabled [ 2.236952][ T0] Dynamic Preempt: full [ 2.240419][ T0] Running RCU self tests [ 2.241920][ T0] Running RCU synchronous self tests [ 2.245181][ T0] rcu: Preemptible hierarchical RCU implementation. [ 2.247338][ T0] rcu: RCU lockdep checking is enabled. [ 2.249294][ T0] rcu: RCU restricting CPUs from NR_CPUS=8 to nr_cpu_ids=2. [ 2.252118][ T0] rcu: RCU callback double-/use-after-free debug is enabled. [ 2.254901][ T0] rcu: RCU debug extended QS entry/exit. [ 2.256807][ T0] All grace periods are expedited (rcu_expedited). [ 2.259142][ T0] Trampoline variant of Tasks RCU enabled. [ 2.261128][ T0] Tracing variant of Tasks RCU enabled. [ 2.262951][ T0] rcu: RCU calculated value of scheduler-enlistment delay is 10 jiffies. [ 2.265661][ T0] rcu: Adjusting geometry for rcu_fanout_leaf=16, nr_cpu_ids=2 [ 2.268546][ T0] Running RCU synchronous self tests [ 2.270408][ T0] RCU Tasks: Setting shift to 1 and lim to 1 rcu_task_cb_adjust=1 rcu_task_cpu_ids=2. [ 2.463200][ T0] NR_IRQS: 4352, nr_irqs: 440, preallocated irqs: 16 [ 2.466280][ T0] rcu: srcu_init: Setting srcu_struct sizes based on contention. [ 2.468708][ T0] clocksource: jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604462750000 ns [ 2.473180][ T0] kfence: initialized - using 2097152 bytes for 255 objects at 0xffff88823be00000-0xffff88823c000000 [ 2.479366][ T0] Console: colour VGA+ 80x25 [ 2.481783][ T0] printk: console [ttyS0] enabled [ 2.481783][ T0] printk: console [ttyS0] enabled [ 2.485352][ T0] printk: legacy bootconsole [earlyser0] disabled [ 2.485352][ T0] printk: legacy bootconsole [earlyser0] disabled [ 2.495938][ T0] Lock dependency validator: Copyright (c) 2006 Red Hat, Inc., Ingo Molnar [ 2.500920][ T0] ... MAX_LOCKDEP_SUBCLASSES: 8 [ 2.503464][ T0] ... MAX_LOCK_DEPTH: 48 [ 2.505440][ T0] ... MAX_LOCKDEP_KEYS: 8192 [ 2.507362][ T0] ... CLASSHASH_SIZE: 4096 [ 2.509602][ T0] ... MAX_LOCKDEP_ENTRIES: 1048576 [ 2.511929][ T0] ... MAX_LOCKDEP_CHAINS: 1048576 [ 2.514675][ T0] ... CHAINHASH_SIZE: 524288 [ 2.517138][ T0] memory used by lock dependency info: 106625 kB [ 2.520197][ T0] memory used for stack traces: 8320 kB [ 2.522573][ T0] per task-struct memory footprint: 1920 bytes [ 2.525226][ T0] mempolicy: Enabling automatic NUMA balancing. Configure with numa_balancing= or the kernel.numa_balancing sysctl [ 2.530403][ T0] ACPI: Core revision 20260408 [ 2.534156][ T0] APIC: Switch to symmetric I/O mode setup [ 2.537013][ T0] x2apic enabled [ 2.552457][ T0] APIC: Switched APIC routing to: physical x2apic [ 2.565803][ T0] ..TIMER: vector=0x30 apic1=0 pin1=0 apic2=-1 pin2=-1 [ 2.569619][ T0] clocksource: tsc-early: mask: 0xffffffffffffffff max_cycles: 0x1fb63109b96, max_idle_ns: 440795265316 ns [ 2.574769][ T0] Calibrating delay loop (skipped) preset value.. 4399.99 BogoMIPS (lpj=21999980) [ 2.579694][ T0] Last level iTLB entries: 4KB 64, 2MB 8, 4MB 8 [ 2.582645][ T0] Last level dTLB entries: 4KB 64, 2MB 32, 4MB 32, 1GB 4 [ 2.584859][ T0] mitigations: Enabled attack vectors: user_kernel, user_user, guest_host, guest_guest, SMT mitigations: auto [ 2.589952][ T0] Speculative Store Bypass: Mitigation: Speculative Store Bypass disabled via prctl [ 2.594772][ T0] Spectre V2 : Mitigation: IBRS [ 2.596782][ T0] RETBleed: Mitigation: IBRS [ 2.598774][ T0] ITS: Mitigation: Aligned branch/return thunks [ 2.601439][ T0] Spectre V2 : User space: Mitigation: STIBP via prctl [ 2.604054][ T0] MDS: Mitigation: Clear CPU buffers [ 2.604766][ T0] TAA: Mitigation: Clear CPU buffers [ 2.606837][ T0] MMIO Stale Data: Vulnerable: Clear CPU buffers attempted, no microcode [ 2.610535][ T0] Spectre V1 : Mitigation: usercopy/swapgs barriers and __user pointer sanitization [ 2.614773][ T0] Spectre V2 : Spectre v2 / SpectreRSB: Filling RSB on context switch and VMEXIT [ 2.618517][ T0] Spectre V2 : Enabling IBPB for BPF [ 2.620987][ T0] Spectre V2 : mitigation: Enabling conditional Indirect Branch Prediction Barrier [ 2.624821][ T0] active return thunk: its_return_thunk [ 2.627514][ T0] Spectre V2 : Spectre BHI mitigation: SW BHB clearing on syscall and VM exit [ 2.631297][ T0] x86/fpu: Supporting XSAVE feature 0x001: 'x87 floating point registers' [ 2.634767][ T0] x86/fpu: Supporting XSAVE feature 0x002: 'SSE registers' [ 2.637633][ T0] x86/fpu: Supporting XSAVE feature 0x004: 'AVX registers' [ 2.640256][ T0] x86/fpu: xstate_offset[2]: 576, xstate_sizes[2]: 256 [ 2.644772][ T0] x86/fpu: Enabled xstate features 0x7, context size is 832 bytes, using 'standard' format. [ 3.096792][ T0] pid_max: default: 32768 minimum: 301 [ 3.101140][ T0] landlock: Up and running. [ 3.102816][ T0] Yama: becoming mindful. [ 3.105202][ T0] TOMOYO Linux initialized [ 3.108268][ T0] AppArmor: AppArmor initialized [ 3.113243][ T0] LSM support for eBPF active [ 3.115463][ T0] debugfs: Unable to create file 'net_refcnt@ffffffff9aca1380', debugfs is not initialized yet [ 3.119575][ T0] debugfs: Unable to create file 'net_notrefcnt@ffffffff9aca13f8', debugfs is not initialized yet [ 3.132203][ T0] Dentry cache hash table entries: 1048576 (order: 11, 8388608 bytes, vmalloc hugepage) [ 3.139246][ T0] Inode-cache hash table entries: 524288 (order: 10, 4194304 bytes, vmalloc hugepage) [ 3.145426][ T0] Mount-cache hash table entries: 16384 (order: 5, 131072 bytes, vmalloc) [ 3.149703][ T0] Mountpoint-cache hash table entries: 16384 (order: 5, 131072 bytes, vmalloc) [ 3.157194][ T0] VFS: Finished mounting rootfs on nullfs [ 3.166430][ T0] Running RCU synchronous self tests [ 3.168579][ T0] Running RCU synchronous self tests [ 3.292595][ T1] smpboot: CPU0: Intel(R) Xeon(R) CPU @ 2.20GHz (family: 0x6, model: 0x4f, stepping: 0x0) [ 3.294746][ T1] Performance Events: unsupported CPU family 6 model 79 no PMU driver, software events only. [ 3.294933][ T1] signal: max sigframe size: 1776 [ 3.299063][ T1] rcu: Hierarchical SRCU implementation. [ 3.304811][ T1] rcu: Max phase no-delay instances is 1000. [ 3.309865][ T1] Timer migration: 1 hierarchy levels; 8 children per group; 0 crossnode level [ 3.414572][ T1] NMI watchdog: Perf NMI watchdog permanently disabled [ 3.416078][ T1] smp: Bringing up secondary CPUs ... [ 3.427856][ T1] smpboot: x86: Booting SMP configuration: [ 3.427892][ T1] .... node #0, CPUs: #1 [ 3.435816][ T1] MDS CPU bug present and SMT on, data leak possible. See https://www.kernel.org/doc/html/latest/admin-guide/hw-vuln/mds.html for more details. [ 3.441473][ T1] TAA CPU bug present and SMT on, data leak possible. See https://www.kernel.org/doc/html/latest/admin-guide/hw-vuln/tsx_async_abort.html for more details. [ 3.444888][ T1] MMIO Stale Data CPU bug present and SMT on, data leak possible. See https://www.kernel.org/doc/html/latest/admin-guide/hw-vuln/processor_mmio_stale_data.html for more details. [ 3.455086][ T1] smp: Brought up 2 nodes, 2 CPUs [ 3.455137][ T1] smpboot: Total of 2 processors activated (8799.99 BogoMIPS) [ 3.469135][ T1] Memory: 6456212K/8388204K available (178081K kernel code, 30382K rwdata, 42056K rodata, 27096K init, 120568K bss, 1741972K reserved, 0K cma-reserved) [ 3.477783][ T1] devtmpfs: initialized [ 3.479054][ T1] x86/mm: Memory block size: 128MB [ 3.560443][ T1] Running RCU synchronous self tests [ 3.560472][ T1] Running RCU synchronous self tests [ 3.566873][ T1] Running RCU Tasks wait API self tests [ 3.567357][ T1] Running RCU Tasks Trace wait API self tests [ 3.568157][ T1] posixtimers hash table entries: 1024 (order: 5, 73728 bytes, vmalloc) [ 3.568157][ T1] futex hash table entries: 256 (32768 bytes on 2 NUMA nodes, total 64 KiB, linear). [ 3.577059][ T1] xor: automatically using best checksumming function avx [ 3.585847][ T1] PM: RTC time: 22:03:28, date: 2026-08-03 [ 3.597024][ T1] NET: Registered PF_NETLINK/PF_ROUTE protocol family [ 3.610583][ T1] audit: initializing netlink subsys (disabled) [ 3.617293][ T10] Callback from call_rcu_tasks_trace() invoked. [ 3.625484][ T31] audit: type=2000 audit(1785794608.410:1): state=initialized audit_enabled=0 res=1 [ 3.625944][ T1] thermal_sys: Registered thermal governor 'step_wise' [ 3.630529][ T1] cpuidle: using governor menu [ 3.630529][ T1] NET: Registered PF_QIPCRTR protocol family [ 3.645005][ T1] dca service started, version 1.12.1 [ 3.646088][ T1] PCI: Using configuration type 1 for base access [ 3.665103][ T1] HugeTLB: registered 1.00 GiB page size, pre-allocated 0 pages [ 3.665156][ T1] HugeTLB: 16380 KiB vmemmap can be freed for a 1.00 GiB page [ 3.665176][ T1] HugeTLB: registered 2.00 MiB page size, pre-allocated 0 pages [ 3.665190][ T1] HugeTLB: 28 KiB vmemmap can be freed for a 2.00 MiB page [ 3.740196][ T1] raid6: using avx2x2 recovery algorithm [ 3.755163][ T1] ACPI: Added _OSI(Module Device) [ 3.755224][ T1] ACPI: Added _OSI(Processor Device) [ 3.755239][ T1] ACPI: Added _OSI(Processor Aggregator Device) [ 4.022147][ T1] ACPI: 2 ACPI AML tables successfully acquired and loaded [ 4.074478][ T1] ACPI: \_SB_: platform _OSC: OS support mask [000e7eee] [ 4.128801][ T1] ACPI: Interpreter enabled [ 4.131074][ T1] ACPI: PM: (supports S0 S3 S4 S5) [ 4.131261][ T1] ACPI: Using IOAPIC for interrupt routing [ 4.133220][ T1] PCI: Using host bridge windows from ACPI; if necessary, use "pci=nocrs" and report a bug [ 4.133289][ T1] PCI: Ignoring E820 reservations for host bridge windows [ 4.154248][ T1] ACPI: Enabled 16 GPEs in block 00 to 0F [ 4.615170][ T1] ACPI: PCI Root Bridge [PCI0] (domain 0000 [bus 00-ff]) [ 4.615362][ T1] acpi PNP0A03:00: _OSC: OS supports [ASPM ClockPM Segments MSI HPX-Type3] [ 4.615362][ T1] acpi PNP0A03:00: _OSC: not requesting OS control; OS requires [ExtendedConfig ASPM ClockPM MSI] [ 4.615362][ T1] acpi PNP0A03:00: _OSC: platform retains control of PCIe features (AE_ERROR) [ 4.616367][ T1] acpi PNP0A03:00: fail to add MMCONFIG information, can't access extended configuration space under this bridge [ 4.687325][ T1] PCI host bridge to bus 0000:00 [ 4.688862][ T1] pci_bus 0000:00: root bus resource [io 0x0000-0x0cf7 window] [ 4.689032][ T1] pci_bus 0000:00: root bus resource [io 0x0d00-0x0fff window] [ 4.689152][ T1] pci_bus 0000:00: root bus resource [io 0xc000-0xffff window] [ 4.689277][ T1] pci_bus 0000:00: root bus resource [io 0xa000-0xbfff window] [ 4.689421][ T1] pci_bus 0000:00: root bus resource [mem 0x000a0000-0x000bffff window] [ 4.689552][ T1] pci_bus 0000:00: root bus resource [mem 0xc0000000-0xfebfefff window] [ 4.689726][ T1] pci_bus 0000:00: root bus resource [bus 00-ff] [ 4.691058][ T1] pci 0000:00:00.0: [8086:1237] type 00 class 0x060000 conventional PCI endpoint [ 4.704650][ T1] pci 0000:00:01.0: [8086:7110] type 00 class 0x060100 conventional PCI endpoint [ 4.728672][ T1] pci 0000:00:01.3: [8086:7113] type 00 class 0x068000 conventional PCI endpoint [ 4.736431][ T1] pci 0000:00:01.3: quirk: [io 0xb000-0xb03f] claimed by PIIX4 ACPI [ 4.748380][ T1] pci 0000:00:03.0: [1af4:1004] type 00 class 0x000000 conventional PCI endpoint [ 4.754453][ T1] pci 0000:00:03.0: BAR 0 [io 0xc000-0xc03f] [ 4.754562][ T1] pci 0000:00:03.0: BAR 1 [mem 0xfe800000-0xfe80007f] [ 4.769310][ T1] pci 0000:00:04.0: [1af4:1000] type 00 class 0x020000 conventional PCI endpoint [ 4.774957][ T1] pci 0000:00:04.0: BAR 0 [io 0xc040-0xc07f] [ 4.775113][ T1] pci 0000:00:04.0: BAR 1 [mem 0xfe801000-0xfe80107f] [ 4.791831][ T1] pci 0000:00:05.0: [1ae0:a002] type 00 class 0x030000 conventional PCI endpoint [ 4.799276][ T1] pci 0000:00:05.0: BAR 0 [mem 0xfe000000-0xfe7fffff] [ 4.799276][ T1] pci 0000:00:05.0: Video device with shadowed ROM at [mem 0x000c0000-0x000dffff] [ 4.813693][ T1] pci 0000:00:06.0: [1af4:1002] type 00 class 0x00ff00 conventional PCI endpoint [ 4.819007][ T1] pci 0000:00:06.0: BAR 0 [io 0xc080-0xc09f] [ 4.832126][ T1] pci 0000:00:07.0: [1af4:1005] type 00 class 0x00ff00 conventional PCI endpoint [ 4.838048][ T1] pci 0000:00:07.0: BAR 0 [io 0xc0a0-0xc0bf] [ 4.838048][ T1] pci 0000:00:07.0: BAR 1 [mem 0xfe802000-0xfe80203f] [ 4.905917][ T1] ACPI: PCI: Interrupt link LNKA configured for IRQ 10 [ 4.918689][ T1] ACPI: PCI: Interrupt link LNKB configured for IRQ 10 [ 4.930460][ T1] ACPI: PCI: Interrupt link LNKC configured for IRQ 11 [ 4.941904][ T1] ACPI: PCI: Interrupt link LNKD configured for IRQ 11 [ 4.952203][ T1] ACPI: PCI: Interrupt link LNKS configured for IRQ 9 [ 5.004916][ T1] iommu: Default domain type: Translated [ 5.004967][ T1] iommu: DMA domain TLB invalidation policy: lazy mode [ 5.022390][ T1] SCSI subsystem initialized [ 5.038889][ T1] ACPI: bus type USB registered [ 5.039171][ T1] usbcore: registered new interface driver usbfs [ 5.042182][ T1] usbcore: registered new interface driver hub [ 5.042245][ T1] usbcore: registered new device driver usb [ 5.052589][ T1] mc: Linux media interface: v0.10 [ 5.054819][ T1] videodev: Linux video capture interface: v2.00 [ 5.058806][ T1] pps_core: LinuxPPS API ver. 1 registered [ 5.063671][ T1] pps_core: Software ver. 5.3.6 - Copyright 2005-2007 Rodolfo Giometti [ 5.063671][ T1] PTP clock support registered [ 5.067689][ T1] EDAC MC: Ver: 3.0.0 [ 5.085132][ T1] Advanced Linux Sound Architecture Driver Initialized. [ 5.101053][ T1] Bluetooth: Core ver 2.22 [ 5.104768][ T1] NET: Registered PF_BLUETOOTH protocol family [ 5.104768][ T1] Bluetooth: HCI device and connection manager initialized [ 5.104768][ T1] Bluetooth: HCI socket layer initialized [ 5.104768][ T1] Bluetooth: L2CAP socket layer initialized [ 5.104768][ T1] Bluetooth: SCO socket layer initialized [ 5.105295][ T1] NET: Registered PF_ATMPVC protocol family [ 5.107633][ T1] NetLabel: Initializing [ 5.107681][ T1] NetLabel: domain hash size = 128 [ 5.107716][ T1] NetLabel: protocols = UNLABELED CIPSOv4 CALIPSO [ 5.109926][ T1] NetLabel: unlabeled traffic allowed by default [ 5.136936][ T1] nfc: nfc_init: NFC Core ver 0.1 [ 5.140095][ T1] NET: Registered PF_NFC protocol family [ 5.145101][ T1] mctp: management component transport protocol core [ 5.148389][ T1] NET: Registered PF_MCTP protocol family [ 5.151815][ T1] PCI: Using ACPI for IRQ routing [ 5.154843][ T1] e820: register RAM buffer resource [mem 0x0009fc00-0x0009ffff] [ 5.158794][ T1] e820: register RAM buffer resource [mem 0xbfffd000-0xbfffffff] [ 5.164426][ T1] pci 0000:00:05.0: vgaarb: setting as boot VGA device [ 5.164454][ T1] pci 0000:00:05.0: vgaarb: bridge control possible [ 5.164470][ T1] pci 0000:00:05.0: vgaarb: VGA device added: decodes=io+mem,owns=io+mem,locks=none [ 5.175214][ T1] vgaarb: loaded [ 5.189105][ T1] clocksource: Switched to clocksource kvm-clock [ 5.199956][ T1] VFS: Disk quotas dquot_6.6.0 [ 5.202998][ T1] VFS: Dquot-cache hash table entries: 512 (4096 bytes) [ 5.217523][ T1] netfs: FS-Cache loaded [ 5.222879][ T1] CacheFiles: Loaded [ 5.226887][ T1] TOMOYO: 2.6.0 [ 5.228723][ T1] Mandatory Access Control activated. [ 5.239505][ T1] AppArmor: AppArmor Filesystem Enabled [ 5.243327][ T1] pnp: PnP ACPI init [ 5.307129][ T1] pnp: PnP ACPI: found 6 devices [ 5.414678][ T1] clocksource: acpi_pm: mask: 0xffffff max_cycles: 0xffffff, max_idle_ns: 2085701024 ns [ 5.421607][ T1] NET: Registered PF_INET protocol family [ 5.426763][ T1] IP idents hash table entries: 131072 (order: 8, 1048576 bytes, vmalloc) [ 5.444677][ T1] tcp_listen_portaddr_hash hash table entries: 4096 (order: 7, 294912 bytes, vmalloc) [ 5.447705][ T1] Table-perturb hash table entries: 65536 (order: 6, 262144 bytes, vmalloc) [ 5.453004][ T1] TCP established hash table entries: 65536 (order: 7, 524288 bytes, vmalloc) [ 5.477434][ T1] TCP bind hash table entries: 65536 (order: 12, 9437184 bytes, vmalloc hugepage) [ 5.487165][ T1] TCP: Hash tables configured (established 65536 bind 65536) [ 5.493490][ T1] MPTCP token hash table entries: 8192 (order: 8, 720896 bytes, vmalloc) [ 5.498607][ T1] UDP hash table entries: 4096 (order: 8, 1048576 bytes, vmalloc) [ 5.503673][ T1] NET: Registered PF_UNIX/PF_LOCAL protocol family [ 5.514653][ T1] RPC: Registered named UNIX socket transport module. [ 5.514713][ T1] RPC: Registered udp transport module. [ 5.514729][ T1] RPC: Registered tcp transport module. [ 5.514739][ T1] RPC: Registered tcp-with-tls transport module. [ 5.514750][ T1] RPC: Registered tcp NFSv4.1 backchannel transport module. [ 5.533765][ T1] NET: Registered PF_XDP protocol family [ 5.534688][ T1] pci_bus 0000:00: resource 4 [io 0x0000-0x0cf7 window] [ 5.534827][ T1] pci_bus 0000:00: resource 5 [io 0x0d00-0x0fff window] [ 5.534897][ T1] pci_bus 0000:00: resource 6 [io 0xc000-0xffff window] [ 5.534966][ T1] pci_bus 0000:00: resource 7 [io 0xa000-0xbfff window] [ 5.535033][ T1] pci_bus 0000:00: resource 8 [mem 0x000a0000-0x000bffff window] [ 5.535100][ T1] pci_bus 0000:00: resource 9 [mem 0xc0000000-0xfebfefff window] [ 5.541361][ T1] pci 0000:00:00.0: Limiting direct PCI/PCI transfers [ 5.542665][ T1] PCI: CLS 0 bytes, default 64 [ 5.558003][ T1] PCI-DMA: Using software bounce buffering for IO (SWIOTLB) [ 5.558083][ T1] software IO TLB: mapped [mem 0x00000000b4600000-0x00000000b8600000] (64MB) [ 5.564555][ T1] ACPI: bus type thunderbolt registered [ 5.592711][ T60] kworker/u8:3 (60) used greatest stack depth: 27696 bytes left [ 5.598884][ T61] kworker/u8:3 (61) used greatest stack depth: 26176 bytes left [ 5.602064][ T1] RAPL PMU: API unit is 2^-32 Joules, 0 fixed counters, 10737418240 ms ovfl timer [ 5.652939][ T1] kvm_amd: CPU 1 isn't AMD or Hygon [ 5.653008][ T1] clocksource: tsc: mask: 0xffffffffffffffff max_cycles: 0x1fb63109b96, max_idle_ns: 440795265316 ns [ 5.666265][ T1] clocksource: Switched to clocksource tsc [ 5.724541][ T1] Initialise system trusted keyrings [ 5.734770][ T1] workingset: timestamp_bits=40 (anon: 35) max_order=21 bucket_order=0 (anon: 0) [ 5.759841][ T1] DLM installed [ 5.770589][ T1] squashfs: version 4.0 (2009/01/31) Phillip Lougher [ 5.799420][ T1] NFS: Registering the id_resolver key type [ 5.800279][ T1] Key type id_resolver registered [ 5.800322][ T1] Key type id_legacy registered [ 5.801311][ T1] nfs4filelayout_init: NFSv4 File Layout Driver Registering... [ 5.801922][ T1] nfs4flexfilelayout_init: NFSv4 Flexfile Layout Driver Registering... [ 5.817096][ T1] smbdirect: subsystem loading... [ 5.829825][ T1] smbdirect: subsystem loaded [ 5.849617][ T1] Key type cifs.spnego registered [ 5.850712][ T1] Key type cifs.idmap registered [ 5.861554][ T1] ntfs3: Enabled Linux POSIX ACLs support [ 5.861597][ T1] ntfs3: Read-only LZX/Xpress compression included [ 5.863179][ T1] jffs2: version 2.2. (NAND) (SUMMARY) © 2001-2006 Red Hat, Inc. [ 5.873276][ T1] romfs: ROMFS MTD (C) 2007 Red Hat, Inc. [ 5.874107][ T1] QNX4 filesystem 0.2.3 registered. [ 5.874532][ T1] qnx6: QNX6 filesystem 1.0.0 registered. [ 5.881069][ T1] fuse: init (API version 7.45) [ 5.890085][ T1] orangefs_debugfs_init: called with debug mask: :none: :0: [ 5.895062][ T1] orangefs_init: module version upstream loaded [ 5.898892][ T1] JFS: nTxBlock = 8192, nTxLock = 65536 [ 5.918947][ T1] SGI XFS with ACLs, security attributes, realtime, scrub, repair, quota, no debug enabled [ 5.933740][ T1] 9p: Installing v9fs 9p2000 file system support [ 5.937461][ T1] NILFS version 2 loaded [ 5.937508][ T1] befs: version: 0.9.3 [ 5.941765][ T1] ocfs2: Registered cluster interface o2cb [ 5.945002][ T1] ocfs2: Registered cluster interface user [ 5.950711][ T1] OCFS2 User DLM kernel interface loaded [ 5.988567][ T1] gfs2: GFS2 installed [ 6.014947][ T1] ceph: loaded (mds proto 32) [ 6.031134][ T1] NET: Registered PF_ALG protocol family [ 6.033050][ T1] async_tx: api initialized (async) [ 6.033298][ T1] Key type asymmetric registered [ 6.033512][ T1] Asymmetric key parser 'x509' registered [ 6.033564][ T1] Asymmetric key parser 'pkcs8' registered [ 6.033611][ T1] Key type pkcs7_test registered [ 6.037395][ T1] Block layer SCSI generic (bsg) driver version 0.4 loaded (major 239) [ 6.060478][ T1] io scheduler mq-deadline registered [ 6.060502][ T1] io scheduler kyber registered [ 6.061161][ T1] io scheduler bfq registered [ 6.080922][ T1] raid6: skipped pq benchmark and selected avx2x4 [ 6.116492][ T1] input: Power Button as /devices/platform/LNXPWRBN:00/input/input0 [ 6.122833][ T1] ACPI: button: Power Button [PWRF] [ 6.129842][ T1] input: Sleep Button as /devices/platform/LNXSLPBN:00/input/input1 [ 6.135712][ T1] ACPI: button: Sleep Button [SLPF] [ 6.175603][ T1] ioatdma: Intel(R) QuickData Technology Driver 5.00 [ 6.221457][ T10] ACPI: \_SB_.LNKC: Enabled at IRQ 11 [ 6.221939][ T10] virtio-pci 0000:00:03.0: virtio_pci: leaving for legacy driver [ 6.269110][ T10] ACPI: \_SB_.LNKD: Enabled at IRQ 10 [ 6.269433][ T10] virtio-pci 0000:00:04.0: virtio_pci: leaving for legacy driver [ 6.319525][ T10] ACPI: \_SB_.LNKB: Enabled at IRQ 10 [ 6.319836][ T10] virtio-pci 0000:00:06.0: virtio_pci: leaving for legacy driver [ 6.360927][ T190] virtio-pci 0000:00:07.0: virtio_pci: leaving for legacy driver [ 7.299580][ T1] N_HDLC line discipline registered with maxframe=4096 [ 7.311086][ T1] Serial: 8250/16550 driver, 4 ports, IRQ sharing enabled [ 7.331547][ T1] 00:02: ttyS0 I/O:0x3f8 (irq = 4, base_baud = 115200) is a 16550A [ 7.365801][ T1] 00:03: ttyS1 I/O:0x2f8 (irq = 3, base_baud = 115200) is a 16550A [ 7.390507][ T1] 00:04: ttyS2 I/O:0x3e8 (irq = 6, base_baud = 115200) is a 16550A [ 7.421016][ T1] 00:05: ttyS3 I/O:0x2e8 (irq = 7, base_baud = 115200) is a 16550A [ 7.465829][ T1] Non-volatile memory driver v1.3 [ 7.503984][ T1] usbcore: registered new interface driver xillyusb [ 7.521289][ T1] ACPI: bus type drm_connector registered [ 7.540011][ T1] [drm] Initialized vgem 1.0.0 for vgem on minor 0 [ 7.554375][ T1] ------------[ cut here ]------------ [ 7.554446][ T1] [PLANE:35:plane-0] pixel format with alpha exposed but blend mode not setup [ 7.554468][ T1] WARNING: drivers/gpu/drm/drm_mode_config.c:873 at drm_mode_config_validate+0x1c6a/0x1e60, CPU#0: swapper/0/1 [ 7.581423][ T1] Modules linked in: [ 7.586963][ T1] CPU: 0 UID: 0 PID: 1 Comm: swapper/0 Not tainted syzkaller #0 PREEMPT(full) [ 7.596437][ T1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026 [ 7.606815][ T1] RIP: 0010:drm_mode_config_validate+0x1cab/0x1e60 [ 7.613394][ T1] Code: 0f 85 ae 00 00 00 4d 8d 77 10 8b 6d 00 4c 89 f0 48 c1 e8 03 80 3c 18 00 74 08 4c 89 f7 e8 0d 78 a6 fc 49 8b 16 4c 89 ef 89 ee <67> 48 0f b9 3a eb 05 e8 f9 c1 37 fc 49 bd 00 00 00 00 00 fc ff df [ 7.633557][ T1] RSP: 0000:ffffc90000067810 EFLAGS: 00010246 [ 7.639737][ T1] RAX: 1ffff11004c28408 RBX: dffffc0000000000 RCX: ffff88801daf5dc0 [ 7.647879][ T1] RDX: ffff888021feaba0 RSI: 0000000000000023 RDI: ffffffff90648620 [ 7.656004][ T1] RBP: 0000000000000023 R08: ffff888023a38813 R09: 1ffff11004747102 [ 7.664270][ T1] R10: dffffc0000000000 R11: ffffed1004747103 R12: dffffc0000000000 [ 7.672351][ T1] R13: ffffffff90648620 R14: ffff888026142040 R15: ffff888026142030 [ 7.680570][ T1] FS: 0000000000000000(0000) GS:ffff888124f11000(0000) knlGS:0000000000000000 [ 7.689874][ T1] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 7.696708][ T1] CR2: ffff88823ffff000 CR3: 000000000e948000 CR4: 00000000003526f0 [ 7.704814][ T1] Call Trace: [ 7.708192][ T1] [ 7.711344][ T1] ? debugfs_create_file_full+0x3f/0x60 [ 7.717182][ T1] drm_dev_register+0x7c/0xd80 [ 7.722210][ T1] vkms_create+0x40d/0x4f0 [ 7.727277][ T1] ? __pfx_vkms_init+0x10/0x10 [ 7.732853][ T1] vkms_init+0x57/0x80 [ 7.737261][ T1] do_one_initcall+0x250/0x870 [ 7.742647][ T1] ? __pfx_vkms_init+0x10/0x10 [ 7.747805][ T1] ? __pfx_do_one_initcall+0x10/0x10 [ 7.753240][ T1] ? ktime_get+0x1f5/0x220 [ 7.757767][ T1] ? clockevents_program_event+0x491/0x630 [ 7.763630][ T1] ? __pfx___schedule+0x10/0x10 [ 7.768627][ T1] ? irqentry_exit+0x218/0x8f0 [ 7.773447][ T1] ? lockdep_hardirqs_on+0x7a/0x110 [ 7.778839][ T1] ? irqentry_exit+0x218/0x8f0 [ 7.783688][ T1] ? trace_irq_disable+0x3b/0x140 [ 7.788813][ T1] ? parameq+0x9d/0x170 [ 7.793712][ T1] ? parameq+0x14d/0x170 [ 7.798606][ T1] ? parse_args+0x9c3/0xad0 [ 7.804511][ T1] ? trace_irq_disable+0x3b/0x140 [ 7.810425][ T1] ? rcu_is_watching+0x15/0xb0 [ 7.815704][ T1] do_initcall_level+0x10a/0x1a0 [ 7.821556][ T1] ? kernel_init+0x22/0x1d0 [ 7.826161][ T1] do_initcalls+0x59/0xa0 [ 7.830729][ T1] kernel_init_freeable+0x29d/0x3e0 [ 7.836254][ T1] ? __pfx_kernel_init+0x10/0x10 [ 7.841242][ T1] kernel_init+0x22/0x1d0 [ 7.845794][ T1] ? __pfx_kernel_init+0x10/0x10 [ 7.852018][ T1] ret_from_fork+0x514/0xb70 [ 7.857034][ T1] ? __pfx_ret_from_fork+0x10/0x10 [ 7.862438][ T1] ? __switch_to+0xc89/0x1420 [ 7.868023][ T1] ? __pfx_kernel_init+0x10/0x10 [ 7.873579][ T1] ret_from_fork_asm+0x1a/0x30 [ 7.879338][ T1] [ 7.883455][ T1] Kernel panic - not syncing: kernel: panic_on_warn set ... [ 7.889274][ T1] CPU: 0 UID: 0 PID: 1 Comm: swapper/0 Not tainted syzkaller #0 PREEMPT(full) [ 7.889274][ T1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026 [ 7.889274][ T1] Call Trace: [ 7.889274][ T1] [ 7.889274][ T1] vpanic+0x56c/0xa60 [ 7.889274][ T1] ? __pfx__printk+0x10/0x10 [ 7.889274][ T1] ? __pfx_vpanic+0x10/0x10 [ 7.889274][ T1] ? is_bpf_text_address+0x292/0x2b0 [ 7.936443][ T1] ? is_bpf_text_address+0x26/0x2b0 [ 7.936443][ T1] panic+0xc5/0xd0 [ 7.936443][ T1] ? __pfx_panic+0x10/0x10 [ 7.936443][ T1] ? ret_from_fork_asm+0x1a/0x30 [ 7.936443][ T1] __warn+0x315/0x4c0 [ 7.936443][ T1] ? drm_mode_config_validate+0x1c6a/0x1e60 [ 7.936443][ T1] ? drm_mode_config_validate+0x1c6a/0x1e60 [ 7.936443][ T1] __report_bug+0x276/0x570 [ 7.936443][ T1] ? look_up_lock_class+0x57/0x110 [ 7.936443][ T1] ? drm_mode_config_validate+0x1c6a/0x1e60 [ 7.936443][ T1] ? __pfx___report_bug+0x10/0x10 [ 7.936443][ T1] ? __pfx_inode_set_ctime_to_ts+0x10/0x10 [ 7.936443][ T1] ? lockdep_hardirqs_on+0x7a/0x110 [ 7.936443][ T1] ? seqcount_lockdep_reader_access+0xea/0x100 [ 7.936443][ T1] ? ktime_get_coarse_real_ts64_mg+0x1c5/0x1e0 [ 7.936443][ T1] report_bug_entry+0x19a/0x290 [ 7.936443][ T1] ? drm_mode_config_validate+0x1cab/0x1e60 [ 7.936443][ T1] ? drm_mode_config_validate+0x1cb0/0x1e60 [ 7.936443][ T1] handle_bug+0xce/0x200 [ 7.936443][ T1] exc_invalid_op+0x1a/0x50 [ 7.936443][ T1] asm_exc_invalid_op+0x1a/0x20 [ 7.936443][ T1] RIP: 0010:drm_mode_config_validate+0x1cab/0x1e60 [ 7.936443][ T1] Code: 0f 85 ae 00 00 00 4d 8d 77 10 8b 6d 00 4c 89 f0 48 c1 e8 03 80 3c 18 00 74 08 4c 89 f7 e8 0d 78 a6 fc 49 8b 16 4c 89 ef 89 ee <67> 48 0f b9 3a eb 05 e8 f9 c1 37 fc 49 bd 00 00 00 00 00 fc ff df [ 7.936443][ T1] RSP: 0000:ffffc90000067810 EFLAGS: 00010246 [ 7.936443][ T1] RAX: 1ffff11004c28408 RBX: dffffc0000000000 RCX: ffff88801daf5dc0 [ 7.936443][ T1] RDX: ffff888021feaba0 RSI: 0000000000000023 RDI: ffffffff90648620 [ 7.936443][ T1] RBP: 0000000000000023 R08: ffff888023a38813 R09: 1ffff11004747102 [ 7.936443][ T1] R10: dffffc0000000000 R11: ffffed1004747103 R12: dffffc0000000000 [ 7.936443][ T1] R13: ffffffff90648620 R14: ffff888026142040 R15: ffff888026142030 [ 7.936443][ T1] ? debugfs_create_file_full+0x3f/0x60 [ 7.936443][ T1] drm_dev_register+0x7c/0xd80 [ 7.936443][ T1] vkms_create+0x40d/0x4f0 [ 7.936443][ T1] ? __pfx_vkms_init+0x10/0x10 [ 7.936443][ T1] vkms_init+0x57/0x80 [ 7.936443][ T1] do_one_initcall+0x250/0x870 [ 7.936443][ T1] ? __pfx_vkms_init+0x10/0x10 [ 7.936443][ T1] ? __pfx_do_one_initcall+0x10/0x10 [ 7.936443][ T1] ? ktime_get+0x1f5/0x220 [ 7.936443][ T1] ? clockevents_program_event+0x491/0x630 [ 7.936443][ T1] ? __pfx___schedule+0x10/0x10 [ 7.936443][ T1] ? irqentry_exit+0x218/0x8f0 [ 7.936443][ T1] ? lockdep_hardirqs_on+0x7a/0x110 [ 7.936443][ T1] ? irqentry_exit+0x218/0x8f0 [ 7.936443][ T1] ? trace_irq_disable+0x3b/0x140 [ 7.936443][ T1] ? parameq+0x9d/0x170 [ 7.936443][ T1] ? parameq+0x14d/0x170 [ 7.936443][ T1] ? parse_args+0x9c3/0xad0 [ 7.936443][ T1] ? trace_irq_disable+0x3b/0x140 [ 7.936443][ T1] ? rcu_is_watching+0x15/0xb0 [ 7.936443][ T1] do_initcall_level+0x10a/0x1a0 [ 7.936443][ T1] ? kernel_init+0x22/0x1d0 [ 7.936443][ T1] do_initcalls+0x59/0xa0 [ 7.936443][ T1] kernel_init_freeable+0x29d/0x3e0 [ 7.936443][ T1] ? __pfx_kernel_init+0x10/0x10 [ 7.936443][ T1] kernel_init+0x22/0x1d0 [ 7.936443][ T1] ? __pfx_kernel_init+0x10/0x10 [ 7.936443][ T1] ret_from_fork+0x514/0xb70 [ 7.936443][ T1] ? __pfx_ret_from_fork+0x10/0x10 [ 7.936443][ T1] ? __switch_to+0xc89/0x1420 [ 7.936443][ T1] ? __pfx_kernel_init+0x10/0x10 [ 7.936443][ T1] ret_from_fork_asm+0x1a/0x30 [ 7.936443][ T1] [ 7.936443][ T1] Shutting down cpus with NMI [ 7.936443][ T1] Kernel Offset: disabled [ 7.936443][ T1] Rebooting in 86400 seconds..