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@10.128.0.170" "pwd"]: exit status 255 ssh: connect to host 10.128.0.170 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] BIOS-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 06/25/2026 [ 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 [ 0.000017][ T0] kvm-clock: using sched offset of 13996155654 cycles [ 0.005314][ T0] clocksource: kvm-clock: mask: 0xffffffffffffffff max_cycles: 0x1cd42e4dffb, max_idle_ns: 881590591483 ns [ 0.040911][ T0] tsc: Detected 2199.998 MHz processor [ 0.052323][ T0] last_pfn = 0x240000 max_arch_pfn = 0x400000000 [ 0.061765][ T0] MTRR map: 4 entries (3 fixed + 1 variable; max 19), built from 8 variable MTRRs [ 0.080876][ T0] x86/PAT: Configuration [0-7]: WB WC UC- UC WB WP UC- WT [ 0.089377][ T0] last_pfn = 0xbfffd max_arch_pfn = 0x400000000 [ 0.103368][ T0] found SMP MP-table at [mem 0x000f2890-0x000f289f] [ 0.116030][ T0] Using GB pages for direct mapping [ 0.126496][ T0] ACPI: Early table checksum verification disabled [ 0.141613][ T0] ACPI: RSDP 0x00000000000F2610 000014 (v00 Google) [ 0.153857][ T0] ACPI: RSDT 0x00000000BFFFFFB0 000038 (v01 Google GOOGRSDT 00000001 GOOG 00000001) [ 0.171632][ T0] ACPI: FACP 0x00000000BFFFF3B0 000114 (v06 Google GOOGFACP 00000001 GOOG 00000001) [ 0.179947][ T0] ACPI: DSDT 0x00000000BFFFD5C0 001DED (v02 Google GOOGDSDT 00000001 GOOG 00000001) [ 0.189408][ T0] ACPI: FACS 0x00000000BFFFD580 000040 [ 0.195741][ T0] ACPI: FACS 0x00000000BFFFD580 000040 [ 0.206323][ T0] ACPI: SRAT 0x00000000BFFFFEA0 0000C8 (v03 Google GOOGSRAT 00000001 GOOG 00000001) [ 0.219768][ T0] ACPI: APIC 0x00000000BFFFFDF0 000076 (v05 Google GOOGAPIC 00000001 GOOG 00000001) [ 0.232162][ T0] ACPI: SSDT 0x00000000BFFFF4D0 000914 (v02 Google GOOGSSDT 00000001 GOOG 00000001) [ 0.245987][ T0] ACPI: WAET 0x00000000BFFFFE70 000028 (v01 Google GOOGWAET 00000001 GOOG 00000001) [ 0.255478][ T0] ACPI: Reserving FACP table memory at [mem 0xbffff3b0-0xbffff4c3] [ 0.266729][ T0] ACPI: Reserving DSDT table memory at [mem 0xbfffd5c0-0xbffff3ac] [ 0.274666][ T0] ACPI: Reserving FACS table memory at [mem 0xbfffd580-0xbfffd5bf] [ 0.280158][ T0] ACPI: Reserving FACS table memory at [mem 0xbfffd580-0xbfffd5bf] [ 0.289004][ T0] ACPI: Reserving SRAT table memory at [mem 0xbffffea0-0xbfffff67] [ 0.295971][ T0] ACPI: Reserving APIC table memory at [mem 0xbffffdf0-0xbffffe65] [ 0.303779][ T0] ACPI: Reserving SSDT table memory at [mem 0xbffff4d0-0xbffffde3] [ 0.310507][ T0] ACPI: Reserving WAET table memory at [mem 0xbffffe70-0xbffffe97] [ 0.315496][ T0] ACPI: SRAT: Node 0 PXM 0 [mem 0x00000000-0x0009ffff] [ 0.320239][ T0] ACPI: SRAT: Node 0 PXM 0 [mem 0x00100000-0xbfffffff] [ 0.324394][ T0] ACPI: SRAT: Node 0 PXM 0 [mem 0x100000000-0x23fffffff] [ 0.329440][ T0] NUMA: Node 0 [mem 0x00001000-0x0009ffff] + [mem 0x00100000-0xbfffffff] -> [mem 0x00001000-0xbfffffff] [ 0.341456][ T0] NUMA: Node 0 [mem 0x00001000-0xbfffffff] + [mem 0x100000000-0x23fffffff] -> [mem 0x00001000-0x23fffffff] [ 0.352289][ T0] Faking node 0 at [mem 0x0000000000001000-0x0000000140000fff] (5120MB) [ 0.361971][ T0] Faking node 1 at [mem 0x0000000140001000-0x000000023fffffff] (4095MB) [ 0.375186][ T0] NODE_DATA(0) allocated [mem 0x13fffb140-0x140000fff] [ 0.382510][ T0] NODE_DATA(1) allocated [mem 0x23fff7140-0x23fffcfff] [ 0.758318][ T0] KernelAddressSanitizer initialized (generic) [ 0.767108][ T0] ACPI: PM-Timer IO Port: 0xb008 [ 0.772111][ T0] ACPI: LAPIC_NMI (acpi_id[0xff] dfl dfl lint[0x1]) [ 0.778514][ T0] IOAPIC[0]: apic_id 0, version 17, address 0xfec00000, GSI 0-23 [ 0.785186][ T0] ACPI: INT_SRC_OVR (bus 0 bus_irq 5 global_irq 5 high level) [ 0.792586][ T0] ACPI: INT_SRC_OVR (bus 0 bus_irq 9 global_irq 9 high level) [ 0.799672][ T0] ACPI: INT_SRC_OVR (bus 0 bus_irq 10 global_irq 10 high level) [ 0.803562][ T0] ACPI: INT_SRC_OVR (bus 0 bus_irq 11 global_irq 11 high level) [ 0.807379][ T0] ACPI: Using ACPI (MADT) for SMP configuration information [ 0.812173][ T0] CPU topo: Max. logical packages: 1 [ 0.816822][ T0] CPU topo: Max. logical nodes: 1 [ 0.820583][ T0] CPU topo: Num. nodes per package: 1 [ 0.825765][ T0] CPU topo: Max. logical dies: 1 [ 0.832271][ T0] CPU topo: Max. dies per package: 1 [ 0.838929][ T0] CPU topo: Max. threads per core: 2 [ 0.846414][ T0] CPU topo: Num. cores per package: 1 [ 0.854981][ T0] CPU topo: Num. threads per package: 2 [ 0.867378][ T0] CPU topo: Allowing 2 present CPUs plus 0 hotplug CPUs [ 0.876574][ T0] PM: hibernation: Registered nosave memory: [mem 0x00000000-0x00000fff] [ 0.890546][ T0] PM: hibernation: Registered nosave memory: [mem 0x0009f000-0x000fffff] [ 0.902078][ T0] PM: hibernation: Registered nosave memory: [mem 0xbfffd000-0xffffffff] [ 0.911450][ T0] [gap 0xc0000000-0xfffbbfff] available for PCI devices [ 0.920083][ T0] Booting paravirtualized kernel on KVM [ 0.925991][ T0] clocksource: refined-jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604462750000 ns [ 1.043249][ T0] Zone ranges: [ 1.046312][ T0] DMA [mem 0x0000000000001000-0x0000000000ffffff] [ 1.050024][ T0] DMA32 [mem 0x0000000001000000-0x00000000ffffffff] [ 1.055222][ T0] Normal [mem 0x0000000100000000-0x000000023fffffff] [ 1.060957][ T0] Device empty [ 1.063845][ T0] Movable zone start for each node [ 1.067205][ T0] Early memory node ranges [ 1.069334][ T0] node 0: [mem 0x0000000000001000-0x000000000009efff] [ 1.076730][ T0] node 0: [mem 0x0000000000100000-0x00000000bfffcfff] [ 1.082858][ T0] node 0: [mem 0x0000000100000000-0x0000000140000fff] [ 1.090301][ T0] node 1: [mem 0x0000000140001000-0x000000023fffffff] [ 1.094433][ T0] Initmem setup node 0 [mem 0x0000000000001000-0x0000000140000fff] [ 1.100852][ T0] Initmem setup node 1 [mem 0x0000000140001000-0x000000023fffffff] [ 1.146081][ T0] On node 0, zone DMA: 1 pages in unavailable ranges [ 1.151076][ T0] On node 0, zone DMA: 97 pages in unavailable ranges [ 1.225431][ T0] On node 0, zone Normal: 3 pages in unavailable ranges [ 1.296609][ T0] setup_percpu: NR_CPUS:8 nr_cpumask_bits:2 nr_cpu_ids:2 nr_node_ids:2 [ 1.301712][ T0] percpu: Embedded 71 pages/cpu s251912 r8192 d30712 u1048576 [ 1.305315][ T0] kvm-guest: PV spinlocks enabled [ 1.308093][ T0] PV qspinlock hash table entries: 256 (order: 0, 4096 bytes, linear) [ 1.313017][ 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 \ [ 1.396439][ T0] Kernel command line: comedi.comedi_num_legacy_minors=4 panic_on_warn=1 BOOT_IMAGE=/boot/bzImage root=/dev/sda1 console=ttyS0 [ 1.419199][ T0] Unknown kernel command line parameters "nbds_max=32", will be passed to user space. [ 1.430349][ T0] random: crng init done [ 1.433635][ T0] printk: log buffer data + meta data: 262144 + 917504 = 1179648 bytes [ 1.441385][ T0] software IO TLB: area num 2. [ 1.495681][ T0] Fallback order for Node 0: 0 1 [ 1.495702][ T0] Fallback order for Node 1: 1 0 [ 1.495716][ T0] Built 2 zonelists, mobility grouping on. Total pages: 2097051 [ 1.517371][ T0] Policy zone: Normal [ 1.523688][ T0] mem auto-init: stack:all(zero), heap alloc:on, heap free:off [ 1.537115][ T0] stackdepot: allocating hash table via alloc_large_system_hash [ 1.550374][ T0] stackdepot hash table entries: 1048576 (order: 12, 16777216 bytes, linear) [ 1.562983][ T0] stackdepot: allocating space for 8192 stack pools via memblock [ 2.401000][ T0] ********************************************************** [ 2.406572][ T0] ** NOTICE NOTICE NOTICE NOTICE NOTICE NOTICE NOTICE ** [ 2.410002][ T0] ** ** [ 2.414611][ T0] ** This system shows unhashed kernel memory addresses ** [ 2.419570][ T0] ** via the console, logs, and other interfaces. This ** [ 2.425712][ T0] ** might reduce the security of your system. ** [ 2.434573][ T0] ** ** [ 2.444245][ T0] ** If you see this message and you are not debugging ** [ 2.453498][ T0] ** the kernel, report this immediately to your system ** [ 2.463620][ T0] ** administrator! ** [ 2.472762][ T0] ** ** [ 2.482618][ T0] ** Use hash_pointers=always to force this mode off ** [ 2.491085][ T0] ** ** [ 2.500698][ T0] ** NOTICE NOTICE NOTICE NOTICE NOTICE NOTICE NOTICE ** [ 2.510535][ T0] ********************************************************** [ 2.524170][ T0] SLUB: HWalign=64, Order=0-3, MinObjects=0, CPUs=2, Nodes=2 [ 2.658278][ T0] allocated 167772160 bytes of page_ext [ 2.666616][ T0] Node 0, zone DMA: page owner found early allocated 0 pages [ 2.690740][ T0] Node 0, zone DMA32: page owner found early allocated 21186 pages [ 2.704980][ T0] Node 0, zone Normal: page owner found early allocated 65 pages [ 2.725596][ T0] Node 1, zone Normal: page owner found early allocated 19847 pages [ 2.737470][ T0] Kernel/User page tables isolation: enabled [ 2.749022][ T0] Dynamic Preempt: full [ 2.756797][ T0] Running RCU self tests [ 2.763613][ T0] Running RCU synchronous self tests [ 2.770127][ T0] rcu: Preemptible hierarchical RCU implementation. [ 2.778647][ T0] rcu: RCU lockdep checking is enabled. [ 2.786753][ T0] rcu: RCU restricting CPUs from NR_CPUS=8 to nr_cpu_ids=2. [ 2.796196][ T0] rcu: RCU callback double-/use-after-free debug is enabled. [ 2.806551][ T0] rcu: RCU debug extended QS entry/exit. [ 2.813467][ T0] All grace periods are expedited (rcu_expedited). [ 2.831360][ T0] Trampoline variant of Tasks RCU enabled. [ 2.840922][ T0] Tracing variant of Tasks RCU enabled. [ 2.853220][ T0] rcu: RCU calculated value of scheduler-enlistment delay is 10 jiffies. [ 2.872559][ T0] rcu: Adjusting geometry for rcu_fanout_leaf=16, nr_cpu_ids=2 [ 2.888942][ T0] Running RCU synchronous self tests [ 2.900876][ T0] RCU Tasks: Setting shift to 1 and lim to 1 rcu_task_cb_adjust=1 rcu_task_cpu_ids=2. [ 3.081121][ T0] NR_IRQS: 4352, nr_irqs: 440, preallocated irqs: 16 [ 3.091273][ T0] rcu: srcu_init: Setting srcu_struct sizes based on contention. [ 3.102381][ T0] clocksource: jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604462750000 ns [ 3.117000][ T0] kfence: initialized - using 2097152 bytes for 255 objects at 0xffff88823be00000-0xffff88823c000000 [ 3.136021][ T0] Console: colour VGA+ 80x25 [ 3.141615][ T0] printk: legacy console [ttyS0] enabled [ 3.141615][ T0] printk: legacy console [ttyS0] enabled [ 3.154962][ T0] printk: legacy bootconsole [earlyser0] disabled [ 3.154962][ T0] printk: legacy bootconsole [earlyser0] disabled [ 3.170901][ T0] Lock dependency validator: Copyright (c) 2006 Red Hat, Inc., Ingo Molnar [ 3.181244][ T0] ... MAX_LOCKDEP_SUBCLASSES: 8 [ 3.187535][ T0] ... MAX_LOCK_DEPTH: 48 [ 3.194156][ T0] ... MAX_LOCKDEP_KEYS: 8192 [ 3.200947][ T0] ... CLASSHASH_SIZE: 4096 [ 3.207606][ T0] ... MAX_LOCKDEP_ENTRIES: 1048576 [ 3.214198][ T0] ... MAX_LOCKDEP_CHAINS: 1048576 [ 3.221569][ T0] ... CHAINHASH_SIZE: 524288 [ 3.228109][ T0] memory used by lock dependency info: 106625 kB [ 3.235785][ T0] memory used for stack traces: 8320 kB [ 3.242441][ T0] per task-struct memory footprint: 1920 bytes [ 3.249576][ T0] mempolicy: Enabling automatic NUMA balancing. Configure with numa_balancing= or the kernel.numa_balancing sysctl [ 3.264454][ T0] ACPI: Core revision 20260408 [ 3.273185][ T0] APIC: Switch to symmetric I/O mode setup [ 3.282295][ T0] x2apic enabled [ 3.308367][ T0] APIC: Switched APIC routing to: physical x2apic [ 3.334581][ T0] ..TIMER: vector=0x30 apic1=0 pin1=0 apic2=-1 pin2=-1 [ 3.344127][ T0] clocksource: tsc-early: mask: 0xffffffffffffffff max_cycles: 0x1fb63109b96, max_idle_ns: 440795265316 ns [ 3.363398][ T0] Calibrating delay loop (skipped) preset value.. 4399.99 BogoMIPS (lpj=21999980) [ 3.374071][ T0] Last level iTLB entries: 4KB 64, 2MB 8, 4MB 8 [ 3.383400][ T0] Last level dTLB entries: 4KB 64, 2MB 32, 4MB 32, 1GB 4 [ 3.393485][ T0] mitigations: Enabled attack vectors: user_kernel, user_user, guest_host, guest_guest, SMT mitigations: auto [ 3.403404][ T0] Speculative Store Bypass: Mitigation: Speculative Store Bypass disabled via prctl [ 3.413406][ T0] Spectre V2 : Mitigation: IBRS [ 3.423403][ T0] RETBleed: Mitigation: IBRS [ 3.433401][ T0] ITS: Mitigation: Aligned branch/return thunks [ 3.443402][ T0] Spectre V2 : User space: Mitigation: STIBP via prctl [ 3.453413][ T0] MDS: Mitigation: Clear CPU buffers [ 3.463408][ T0] TAA: Mitigation: Clear CPU buffers [ 3.473403][ T0] MMIO Stale Data: Vulnerable: Clear CPU buffers attempted, no microcode [ 3.483402][ T0] Spectre V1 : Mitigation: usercopy/swapgs barriers and __user pointer sanitization [ 3.493412][ serialport: Connected to syzkaller.us-central1-c.ci-upstream-linux-next-kasan-gce-root-test-1 port 1 (session ID: 85428cc95dfc13b134156fb2e4f3044359d74545b81ac79ab7d65b66c62054ce, active connections: 1). T0] Spectre V2 : Spectre v2 / SpectreRSB: Filling RSB on context switch and VMEXIT [ 3.503434][ T0] Spectre V2 : Enabling IBPB for BPF [ 3.513425][ T0] Spectre V2 : mitigation: Enabling conditional Indirect Branch Prediction Barrier [ 3.523448][ T0] active return thunk: its_return_thunk [ 3.533404][ T0] Spectre V2 : Spectre BHI mitigation: SW BHB clearing on syscall and VM exit [ 3.543477][ T0] x86/fpu: Supporting XSAVE feature 0x001: 'x87 floating point registers' [ 3.553409][ T0] x86/fpu: Supporting XSAVE feature 0x002: 'SSE registers' [ 3.563405][ T0] x86/fpu: Supporting XSAVE feature 0x004: 'AVX registers' [ 3.573406][ T0] x86/fpu: xstate_offset[2]: 576, xstate_sizes[2]: 256 [ 3.583403][ T0] x86/fpu: Enabled xstate features 0x7, context size is 832 bytes, using 'standard' format. [ 4.035966][ T0] pid_max: default: 32768 minimum: 301 [ 4.045006][ T0] landlock: Up and running. [ 4.050453][ T0] Yama: becoming mindful. [ 4.053829][ T0] TOMOYO Linux initialized [ 4.064652][ T0] AppArmor: AppArmor initialized [ 4.073403][ T0] LSM support for eBPF active [ 4.086881][ T0] Dentry cache hash table entries: 1048576 (order: 11, 8388608 bytes, vmalloc hugepage) [ 4.096557][ T0] Inode-cache hash table entries: 524288 (order: 10, 4194304 bytes, vmalloc hugepage) [ 4.103974][ T0] Mount-cache hash table entries: 16384 (order: 5, 131072 bytes, vmalloc) [ 4.113638][ T0] Mountpoint-cache hash table entries: 16384 (order: 5, 131072 bytes, vmalloc) [ 4.125791][ T0] VFS: Finished mounting rootfs on nullfs [ 4.139159][ T0] Running RCU synchronous self tests [ 4.143406][ T0] Running RCU synchronous self tests [ 4.277256][ T1] smpboot: CPU0: Intel(R) Xeon(R) CPU @ 2.20GHz (family: 0x6, model: 0x4f, stepping: 0x0) [ 4.288530][ T1] Performance Events: unsupported CPU family 6 model 79 no PMU driver, software events only. [ 4.293541][ T1] signal: max sigframe size: 1776 [ 4.304410][ T1] rcu: Hierarchical SRCU implementation. [ 4.313416][ T1] rcu: Max phase no-delay instances is 1000. [ 4.324880][ T1] Timer migration: 1 hierarchy levels; 8 children per group; 0 crossnode level [ 4.427988][ T1] NMI watchdog: Perf NMI watchdog permanently disabled [ 4.453465][ T1] smp: Bringing up secondary CPUs ... [ 4.465631][ T1] smpboot: x86: Booting SMP configuration: [ 4.473475][ T1] .... node #0, CPUs: #1 [ 4.494414][ 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. [ 4.513663][ 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. [ 4.523925][ 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. [ 4.533602][ T1] smp: Brought up 2 nodes, 2 CPUs [ 4.543453][ T1] smpboot: Total of 2 processors activated (8799.99 BogoMIPS) [ 4.564861][ T1] Memory: 6456624K/8388204K available (177693K kernel code, 30339K rwdata, 41976K rodata, 27036K init, 120568K bss, 1741816K reserved, 0K cma-reserved) [ 4.583988][ T1] devtmpfs: initialized [ 4.594144][ T1] x86/mm: Memory block size: 128MB [ 4.691137][ T1] Running RCU synchronous self tests [ 4.693435][ T1] Running RCU synchronous self tests [ 4.703809][ T1] Running RCU Tasks wait API self tests [ 4.713674][ T1] Running RCU Tasks Trace wait API self tests [ 4.733934][ T1] posixtimers hash table entries: 1024 (order: 5, 73728 bytes, vmalloc) [ 4.743587][ T1] futex hash table entries: 256 (32768 bytes on 2 NUMA nodes, total 64 KiB, linear). [ 4.765200][ T1] xor: automatically using best checksumming function avx [ 4.779362][ T1] PM: RTC time: 12:14:49, date: 2026-07-21 [ 4.800161][ T1] NET: Registered PF_NETLINK/PF_ROUTE protocol family [ 4.813612][ T10] Callback from call_rcu_tasks_trace() invoked. [ 4.833823][ T1] audit: initializing netlink subsys (disabled) [ 4.843819][ T30] audit: type=2000 audit(1784636089.556:1): state=initialized audit_enabled=0 res=1 [ 4.865737][ T1] thermal_sys: Registered thermal governor 'step_wise' [ 4.866078][ T1] cpuidle: using governor menu [ 4.884293][ T1] NET: Registered PF_QIPCRTR protocol family [ 4.900884][ T1] dca service started, version 1.12.1 [ 4.904108][ T1] PCI: Using configuration type 1 for base access [ 4.933691][ T28] Callback from call_rcu_tasks() invoked. [ 4.953807][ T1] HugeTLB: registered 1.00 GiB page size, pre-allocated 0 pages [ 4.963491][ T1] HugeTLB: 16380 KiB vmemmap can be freed for a 1.00 GiB page [ 4.973426][ T1] HugeTLB: registered 2.00 MiB page size, pre-allocated 0 pages [ 4.983431][ T1] HugeTLB: 28 KiB vmemmap can be freed for a 2.00 MiB page [ 5.059683][ T1] raid6: using avx2x2 recovery algorithm [ 5.067886][ T1] ACPI: Added _OSI(Module Device) [ 5.073417][ T1] ACPI: Added _OSI(Processor Device) [ 5.083446][ T1] ACPI: Added _OSI(Processor Aggregator Device) [ 5.408659][ T1] ACPI: 2 ACPI AML tables successfully acquired and loaded [ 5.499405][ T1] ACPI: \_SB_: platform _OSC: OS support mask [000e7eee] [ 5.566067][ T1] ACPI: Interpreter enabled [ 5.573266][ T1] ACPI: PM: (supports S0 S3 S4 S5) [ 5.573488][ T1] ACPI: Using IOAPIC for interrupt routing [ 5.584244][ T1] PCI: Using host bridge windows from ACPI; if necessary, use "pci=nocrs" and report a bug [ 5.593414][ T1] PCI: Ignoring E820 reservations for host bridge windows [ 5.631043][ T1] ACPI: Enabled 16 GPEs in block 00 to 0F [ 6.167198][ T1] ACPI: PCI Root Bridge [PCI0] (domain 0000 [bus 00-ff]) [ 6.173578][ T1] acpi PNP0A03:00: _OSC: OS supports [ASPM ClockPM Segments MSI HPX-Type3] [ 6.183440][ T1] acpi PNP0A03:00: _OSC: not requesting OS control; OS requires [ExtendedConfig ASPM ClockPM MSI] [ 6.193880][ T1] acpi PNP0A03:00: _OSC: platform retains control of PCIe features (AE_ERROR) [ 6.204614][ T1] acpi PNP0A03:00: fail to add MMCONFIG information, can't access extended configuration space under this bridge [ 6.286554][ T1] PCI host bridge to bus 0000:00 [ 6.293676][ T1] pci_bus 0000:00: root bus resource [io 0x0000-0x0cf7 window] [ 6.303493][ T1] pci_bus 0000:00: root bus resource [io 0x0d00-0x0fff window] [ 6.313412][ T1] pci_bus 0000:00: root bus resource [io 0xc000-0xffff window] [ 6.323064][ T1] pci_bus 0000:00: root bus resource [io 0xa000-0xbfff window] [ 6.323477][ T1] pci_bus 0000:00: root bus resource [mem 0x000a0000-0x000bffff window] [ 6.334059][ T1] pci_bus 0000:00: root bus resource [mem 0xc0000000-0xfebfefff window] [ 6.343476][ T1] pci_bus 0000:00: root bus resource [bus 00-ff] [ 6.354009][ T1] pci 0000:00:00.0: [8086:1237] type 00 class 0x060000 conventional PCI endpoint [ 6.368349][ T1] pci 0000:00:01.0: [8086:7110] type 00 class 0x060100 conventional PCI endpoint [ 6.387993][ T1] pci 0000:00:01.3: [8086:7113] type 00 class 0x068000 conventional PCI endpoint [ 6.404114][ T1] pci 0000:00:01.3: quirk: [io 0xb000-0xb03f] claimed by PIIX4 ACPI [ 6.427000][ T1] pci 0000:00:03.0: [1af4:1004] type 00 class 0x000000 conventional PCI endpoint [ 6.443927][ T1] pci 0000:00:03.0: BAR 0 [io 0xc000-0xc03f] [ 6.453450][ T1] pci 0000:00:03.0: BAR 1 [mem 0xfe800000-0xfe80007f] [ 6.475481][ T1] pci 0000:00:04.0: [1af4:1000] type 00 class 0x020000 conventional PCI endpoint [ 6.493588][ T1] pci 0000:00:04.0: BAR 0 [io 0xc040-0xc07f] [ 6.501020][ T1] pci 0000:00:04.0: BAR 1 [mem 0xfe801000-0xfe80107f] [ 6.519066][ T1] pci 0000:00:05.0: [1ae0:a002] type 00 class 0x030000 conventional PCI endpoint [ 6.543650][ T1] pci 0000:00:05.0: BAR 0 [mem 0xfe000000-0xfe7fffff] [ 6.554365][ T1] pci 0000:00:05.0: Video device with shadowed ROM at [mem 0x000c0000-0x000dffff] [ 6.576990][ T1] pci 0000:00:06.0: [1af4:1002] type 00 class 0x00ff00 conventional PCI endpoint [ 6.599606][ T1] pci 0000:00:06.0: BAR 0 [io 0xc080-0xc09f] [ 6.617623][ T1] pci 0000:00:07.0: [1af4:1005] type 00 class 0x00ff00 conventional PCI endpoint [ 6.638837][ T1] pci 0000:00:07.0: BAR 0 [io 0xc0a0-0xc0bf] [ 6.643851][ T1] pci 0000:00:07.0: BAR 1 [mem 0xfe802000-0xfe80203f] [ 6.743421][ T1] ACPI: PCI: Interrupt link LNKA configured for IRQ 10 [ 6.777569][ T1] ACPI: PCI: Interrupt link LNKB configured for IRQ 10 [ 6.805252][ T1] ACPI: PCI: Interrupt link LNKC configured for IRQ 11 [ 6.829551][ T1] ACPI: PCI: Interrupt link LNKD configured for IRQ 11 [ 6.845546][ T1] ACPI: PCI: Interrupt link LNKS configured for IRQ 9 [ 6.893499][ T1] iommu: Default domain type: Translated [ 6.901106][ T1] iommu: DMA domain TLB invalidation policy: lazy mode [ 6.919561][ T1] SCSI subsystem initialized [ 6.935678][ T1] ACPI: bus type USB registered [ 6.941409][ T1] usbcore: registered new interface driver usbfs [ 6.944206][ T1] usbcore: registered new interface driver hub [ 6.953972][ T1] usbcore: registered new device driver usb [ 6.967901][ T1] mc: Linux media interface: v0.10 [ 6.973985][ T1] videodev: Linux video capture interface: v2.00 [ 6.985023][ T1] pps_core: LinuxPPS API ver. 1 registered [ 6.993429][ T1] pps_core: Software ver. 5.3.6 - Copyright 2005-2007 Rodolfo Giometti [ 7.003681][ T1] PTP clock support registered [ 7.018939][ T1] EDAC MC: Ver: 3.0.0 [ 7.032595][ T1] Advanced Linux Sound Architecture Driver Initialized. [ 7.052802][ T1] Bluetooth: Core ver 2.22 [ 7.053821][ T1] NET: Registered PF_BLUETOOTH protocol family [ 7.063450][ T1] Bluetooth: HCI device and connection manager initialized [ 7.073550][ T1] Bluetooth: HCI socket layer initialized [ 7.083444][ T1] Bluetooth: L2CAP socket layer initialized [ 7.090674][ T1] Bluetooth: SCO socket layer initialized [ 7.093574][ T1] NET: Registered PF_ATMPVC protocol family [ 7.103999][ T1] NetLabel: Initializing [ 7.108874][ T1] NetLabel: domain hash size = 128 [ 7.113411][ T1] NetLabel: protocols = UNLABELED CIPSOv4 CALIPSO [ 7.124726][ T1] NetLabel: unlabeled traffic allowed by default [ 7.144060][ T1] nfc: nfc_init: NFC Core ver 0.1 [ 7.152359][ T1] NET: Registered PF_NFC protocol family [ 7.153616][ T1] mctp: management component transport protocol core [ 7.163402][ T1] NET: Registered PF_MCTP protocol family [ 7.173947][ T1] PCI: Using ACPI for IRQ routing [ 7.181678][ T1] e820: register RAM buffer resource [mem 0x0009fc00-0x0009ffff] [ 7.183544][ T1] e820: register RAM buffer resource [mem 0xbfffd000-0xbfffffff] [ 7.195189][ T1] pci 0000:00:05.0: vgaarb: setting as boot VGA device [ 7.203245][ T1] pci 0000:00:05.0: vgaarb: bridge control possible [ 7.203380][ T1] pci 0000:00:05.0: vgaarb: VGA device added: decodes=io+mem,owns=io+mem,locks=none [ 7.203444][ T1] vgaarb: loaded [ 7.224306][ T1] clocksource: Switched to clocksource kvm-clock [ 7.247297][ T1] VFS: Disk quotas dquot_6.6.0 [ 7.253013][ T1] VFS: Dquot-cache hash table entries: 512 (4096 bytes) [ 7.276012][ T1] netfs: FS-Cache loaded [ 7.284739][ T1] CacheFiles: Loaded [ 7.291405][ T1] TOMOYO: 2.6.0 [ 7.296025][ T1] Mandatory Access Control activated. [ 7.312061][ T1] AppArmor: AppArmor Filesystem Enabled [ 7.321587][ T1] pnp: PnP ACPI init [ 7.396656][ T1] pnp: PnP ACPI: found 6 devices [ 7.506564][ T1] clocksource: acpi_pm: mask: 0xffffff max_cycles: 0xffffff, max_idle_ns: 2085701024 ns [ 7.523466][ T1] NET: Registered PF_INET protocol family [ 7.533147][ T1] IP idents hash table entries: 131072 (order: 8, 1048576 bytes, vmalloc) [ 7.555446][ T1] tcp_listen_portaddr_hash hash table entries: 4096 (order: 7, 294912 bytes, vmalloc) [ 7.569889][ T1] Table-perturb hash table entries: 65536 (order: 6, 262144 bytes, vmalloc) [ 7.581222][ T1] TCP established hash table entries: 65536 (order: 7, 524288 bytes, vmalloc) [ 7.603441][ T1] TCP bind hash table entries: 65536 (order: 12, 9437184 bytes, vmalloc hugepage) [ 7.626220][ T1] TCP: Hash tables configured (established 65536 bind 65536) [ 7.640092][ T1] MPTCP token hash table entries: 8192 (order: 8, 720896 bytes, vmalloc) [ 7.653218][ T1] UDP hash table entries: 4096 (order: 8, 1048576 bytes, vmalloc) [ 7.664898][ T1] NET: Registered PF_UNIX/PF_LOCAL protocol family [ 7.679037][ T1] RPC: Registered named UNIX socket transport module. [ 7.686453][ T1] RPC: Registered udp transport module. [ 7.694399][ T1] RPC: Registered tcp transport module. [ 7.701090][ T1] RPC: Registered tcp-with-tls transport module. [ 7.708384][ T1] RPC: Registered tcp NFSv4.1 backchannel transport module. [ 7.726083][ T1] NET: Registered PF_XDP protocol family [ 7.734103][ T1] pci_bus 0000:00: resource 4 [io 0x0000-0x0cf7 window] [ 7.742365][ T1] pci_bus 0000:00: resource 5 [io 0x0d00-0x0fff window] [ 7.750555][ T1] pci_bus 0000:00: resource 6 [io 0xc000-0xffff window] [ 7.758931][ T1] pci_bus 0000:00: resource 7 [io 0xa000-0xbfff window] [ 7.767510][ T1] pci_bus 0000:00: resource 8 [mem 0x000a0000-0x000bffff window] [ 7.778460][ T1] pci_bus 0000:00: resource 9 [mem 0xc0000000-0xfebfefff window] [ 7.789503][ T1] pci 0000:00:00.0: Limiting direct PCI/PCI transfers [ 7.799242][ T1] PCI: CLS 0 bytes, default 64 [ 7.805619][ T1] PCI-DMA: Using software bounce buffering for IO (SWIOTLB) [ 7.813813][ T1] software IO TLB: mapped [mem 0x00000000b4600000-0x00000000b8600000] (64MB) [ 7.825584][ T1] ACPI: bus type thunderbolt registered [ 7.849207][ T1] RAPL PMU: API unit is 2^-32 Joules, 0 fixed counters, 10737418240 ms ovfl timer [ 7.849510][ T58] kworker/u8:3 (58) used greatest stack depth: 27504 bytes left [ 7.905164][ T1] kvm_amd: CPU 0 isn't AMD or Hygon [ 7.911248][ T1] clocksource: tsc: mask: 0xffffffffffffffff max_cycles: 0x1fb63109b96, max_idle_ns: 440795265316 ns [ 7.923750][ T1] clocksource: Switched to clocksource tsc [ 7.969668][ T78] kworker/u8:3 (78) used greatest stack depth: 27240 bytes left [ 7.980189][ T1] Initialise system trusted keyrings [ 7.988741][ T1] workingset: timestamp_bits=40 (anon: 35) max_order=21 bucket_order=0 (anon: 0) [ 8.020483][ T1] DLM installed [ 8.032487][ T1] squashfs: version 4.0 (2009/01/31) Phillip Lougher [ 8.049365][ T1] NFS: Registering the id_resolver key type [ 8.057462][ T1] Key type id_resolver registered [ 8.065253][ T1] Key type id_legacy registered [ 8.071509][ T1] nfs4filelayout_init: NFSv4 File Layout Driver Registering... [ 8.079680][ T1] nfs4flexfilelayout_init: NFSv4 Flexfile Layout Driver Registering... [ 8.096559][ T1] smbdirect: subsystem loading... [ 8.113459][ T1] smbdirect: subsystem loaded [ 8.138184][ T1] Key type cifs.spnego registered [ 8.144460][ T1] Key type cifs.idmap registered [ 8.156822][ T1] ntfs3: Enabled Linux POSIX ACLs support [ 8.163519][ T1] ntfs3: Read-only LZX/Xpress compression included [ 8.174409][ T1] jffs2: version 2.2. (NAND) (SUMMARY) © 2001-2006 Red Hat, Inc. [ 8.187793][ T1] romfs: ROMFS MTD (C) 2007 Red Hat, Inc. [ 8.194562][ T1] QNX4 filesystem 0.2.3 registered. [ 8.200359][ T1] qnx6: QNX6 filesystem 1.0.0 registered. [ 8.208520][ T1] fuse: init (API version 7.45) [ 8.219327][ T1] orangefs_debugfs_init: called with debug mask: :none: :0: [ 8.230420][ T1] orangefs_init: module version upstream loaded [ 8.239520][ T1] JFS: nTxBlock = 8192, nTxLock = 65536 [ 8.265582][ T1] SGI XFS with ACLs, security attributes, realtime, scrub, repair, quota, no debug enabled [ 8.291132][ T1] 9p: Installing v9fs 9p2000 file system support [ 8.301434][ T1] NILFS version 2 loaded [ 8.305899][ T1] befs: version: 0.9.3 [ 8.312801][ T1] ocfs2: Registered cluster interface o2cb [ 8.320413][ T1] ocfs2: Registered cluster interface user [ 8.328528][ T1] OCFS2 User DLM kernel interface loaded [ 8.365713][ T1] gfs2: GFS2 installed [ 8.393064][ T1] ceph: loaded (mds proto 32) [ 8.411377][ T1] NET: Registered PF_ALG protocol family [ 8.418524][ T1] async_tx: api initialized (async) [ 8.425157][ T1] Key type asymmetric registered [ 8.430829][ T1] Asymmetric key parser 'x509' registered [ 8.437056][ T1] Asymmetric key parser 'pkcs8' registered [ 8.443688][ T1] Key type pkcs7_test registered [ 8.450655][ T1] Block layer SCSI generic (bsg) driver version 0.4 loaded (major 239) [ 8.462512][ T1] io scheduler mq-deadline registered [ 8.468314][ T1] io scheduler kyber registered [ 8.474907][ T1] io scheduler bfq registered [ 8.481787][ T1] raid6: skipped pq benchmark and selected avx2x4 [ 8.526489][ T1] input: Power Button as /devices/platform/LNXPWRBN:00/input/input0 [ 8.537195][ T1] ACPI: button: Power Button [PWRF] [ 8.545507][ T159] kworker/u8:3 (159) used greatest stack depth: 26312 bytes left [ 8.558388][ T1] input: Sleep Button as /devices/platform/LNXSLPBN:00/input/input1 [ 8.572590][ T1] ACPI: button: Sleep Button [SLPF] [ 8.610974][ T1] ioatdma: Intel(R) QuickData Technology Driver 5.00 [ 8.666386][ T10] ACPI: \_SB_.LNKC: Enabled at IRQ 11 [ 8.673035][ T10] virtio-pci 0000:00:03.0: virtio_pci: leaving for legacy driver [ 8.720511][ T10] ACPI: \_SB_.LNKD: Enabled at IRQ 10 [ 8.727417][ T10] virtio-pci 0000:00:04.0: virtio_pci: leaving for legacy driver [ 8.778037][ T10] ACPI: \_SB_.LNKB: Enabled at IRQ 10 [ 8.786191][ T10] virtio-pci 0000:00:06.0: virtio_pci: leaving for legacy driver [ 8.828956][ T10] virtio-pci 0000:00:07.0: virtio_pci: leaving for legacy driver [ 9.768472][ T1] N_HDLC line discipline registered with maxframe=4096 [ 9.779199][ T1] Serial: 8250/16550 driver, 4 ports, IRQ sharing enabled [ 9.800557][ T1] 00:02: ttyS0 I/O:0x3f8 (irq = 4, base_baud = 115200) is a 16550A [ 9.841501][ T1] 00:03: ttyS1 I/O:0x2f8 (irq = 3, base_baud = 115200) is a 16550A [ 9.877085][ T1] 00:04: ttyS2 I/O:0x3e8 (irq = 6, base_baud = 115200) is a 16550A [ 9.913946][ T1] 00:05: ttyS3 I/O:0x2e8 (irq = 7, base_baud = 115200) is a 16550A [ 9.970470][ T1] Non-volatile memory driver v1.3 [ 10.020057][ T1] usbcore: registered new interface driver xillyusb [ 10.035579][ T1] ACPI: bus type drm_connector registered [ 10.061955][ T1] [drm] Initialized vgem 1.0.0 for vgem on minor 0 [ 10.078353][ T1] ------------[ cut here ]------------ [ 10.084815][ T1] [PLANE:35:plane-0] pixel format with alpha exposed but blend mode not setup [ 10.084861][ T1] WARNING: drivers/gpu/drm/drm_mode_config.c:873 at drm_mode_config_validate+0x1c6a/0x1e60, CPU#0: swapper/0/1 [ 10.109566][ T1] Modules linked in: [ 10.114094][ T1] CPU: 0 UID: 0 PID: 1 Comm: swapper/0 Not tainted syzkaller #0 PREEMPT(full) [ 10.124372][ T1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/25/2026 [ 10.136023][ T1] RIP: 0010:drm_mode_config_validate+0x1cab/0x1e60 [ 10.143898][ 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 dd f3 a8 fc 49 8b 16 4c 89 ef 89 ee <67> 48 0f b9 3a eb 05 e8 19 dd 3a fc 49 bd 00 00 00 00 00 fc ff df [ 10.169769][ T1] RSP: 0000:ffffc90000067810 EFLAGS: 00010246 [ 10.177105][ T1] RAX: 1ffff11004dca808 RBX: dffffc0000000000 RCX: ffff88801daaddc0 [ 10.186145][ T1] RDX: ffff888026bdaba0 RSI: 0000000000000023 RDI: ffffffff9063cb10 [ 10.197104][ T1] RBP: 0000000000000023 R08: ffff888023a4adf3 R09: 1ffff110047495be [ 10.209519][ T1] R10: dffffc0000000000 R11: ffffed10047495bf R12: dffffc0000000000 [ 10.219558][ T1] R13: ffffffff9063cb10 R14: ffff888026e54040 R15: ffff888026e54030 [ 10.228988][ T1] FS: 0000000000000000(0000) GS:ffff888124f34000(0000) knlGS:0000000000000000 [ 10.239063][ T1] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 10.246172][ T1] CR2: ffff88823ffff000 CR3: 000000000e946000 CR4: 00000000003526f0 [ 10.255894][ T1] Call Trace: [ 10.259509][ T1] [ 10.262814][ T1] ? debugfs_create_file_full+0x3f/0x60 [ 10.269176][ T1] drm_dev_register+0x7c/0xd80 [ 10.274746][ T1] vkms_create+0x40d/0x4f0 [ 10.279459][ T1] ? __pfx_vkms_init+0x10/0x10 [ 10.284694][ T1] vkms_init+0x57/0x80 [ 10.289109][ T1] do_one_initcall+0x250/0x870 [ 10.295146][ T1] ? __pfx_vkms_init+0x10/0x10 [ 10.300247][ T1] ? __pfx_do_one_initcall+0x10/0x10 [ 10.306158][ T1] ? lapic_next_event+0x11/0x20 [ 10.311279][ T1] ? clockevents_program_event+0x491/0x630 [ 10.317661][ T1] ? __pfx_clockevents_program_event+0x10/0x10 [ 10.324465][ T1] ? __pfx___schedule+0x10/0x10 [ 10.329922][ T1] ? irqentry_exit+0x218/0x8f0 [ 10.335087][ T1] ? irqentry_exit+0x218/0x8f0 [ 10.340712][ T1] ? lockdep_hardirqs_on+0x7a/0x110 [ 10.346551][ T1] ? irqentry_exit+0x218/0x8f0 [ 10.352083][ T1] ? trace_irq_disable+0x3b/0x140 [ 10.358630][ T1] ? next_arg+0x4a0/0x5e0 [ 10.363365][ T1] ? parameq+0x14d/0x170 [ 10.368204][ T1] ? parse_args+0x9c3/0xad0 [ 10.373117][ T1] ? rcu_is_watching+0x15/0xb0 [ 10.378322][ T1] do_initcall_level+0x10a/0x1a0 [ 10.383575][ T1] ? kernel_init+0x22/0x1d0 [ 10.388436][ T1] do_initcalls+0x59/0xa0 [ 10.394390][ T1] kernel_init_freeable+0x29d/0x3e0 [ 10.401208][ T1] ? __pfx_kernel_init+0x10/0x10 [ 10.406834][ T1] kernel_init+0x22/0x1d0 [ 10.412378][ T1] ? __pfx_kernel_init+0x10/0x10 [ 10.417888][ T1] ret_from_fork+0x514/0xb70 [ 10.423509][ T1] ? __pfx_ret_from_fork+0x10/0x10 [ 10.429034][ T1] ? __switch_to+0xc89/0x1420 [ 10.434752][ T1] ? __pfx_kernel_init+0x10/0x10 [ 10.441430][ T1] ret_from_fork_asm+0x1a/0x30 [ 10.446729][ T1] [ 10.451246][ T1] Kernel panic - not syncing: kernel: panic_on_warn set ... [ 10.458926][ T1] CPU: 0 UID: 0 PID: 1 Comm: swapper/0 Not tainted syzkaller #0 PREEMPT(full) [ 10.461207][ T1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/25/2026 [ 10.461207][ T1] Call Trace: [ 10.461207][ T1] [ 10.461207][ T1] vpanic+0x56c/0xa60 [ 10.461207][ T1] ? __pfx__printk+0x10/0x10 [ 10.461207][ T1] ? __pfx_vpanic+0x10/0x10 [ 10.461207][ T1] ? is_bpf_text_address+0x292/0x2b0 [ 10.461207][ T1] ? is_bpf_text_address+0x26/0x2b0 [ 10.511389][ T1] panic+0xc5/0xd0 [ 10.511389][ T1] ? __pfx_panic+0x10/0x10 [ 10.511389][ T1] ? ret_from_fork_asm+0x1a/0x30 [ 10.511389][ T1] __warn+0x315/0x4c0 [ 10.511389][ T1] ? drm_mode_config_validate+0x1c6a/0x1e60 [ 10.511389][ T1] ? drm_mode_config_validate+0x1c6a/0x1e60 [ 10.511389][ T1] __report_bug+0x276/0x570 [ 10.511389][ T1] ? look_up_lock_class+0x57/0x110 [ 10.511389][ T1] ? drm_mode_config_validate+0x1c6a/0x1e60 [ 10.561388][ T1] ? __pfx___report_bug+0x10/0x10 [ 10.561388][ T1] ? __pfx_inode_set_ctime_to_ts+0x10/0x10 [ 10.561388][ T1] ? lockdep_hardirqs_on+0x7a/0x110 [ 10.561388][ T1] ? seqcount_lockdep_reader_access+0xea/0x100 [ 10.561388][ T1] ? ktime_get_coarse_real_ts64_mg+0x1c5/0x1e0 [ 10.561388][ T1] report_bug_entry+0x19a/0x290 [ 10.561388][ T1] ? drm_mode_config_validate+0x1cab/0x1e60 [ 10.561388][ T1] ? drm_mode_config_validate+0x1cb0/0x1e60 [ 10.561388][ T1] handle_bug+0xce/0x200 [ 10.561388][ T1] exc_invalid_op+0x1a/0x50 [ 10.561388][ T1] asm_exc_invalid_op+0x1a/0x20 [ 10.561388][ T1] RIP: 0010:drm_mode_config_validate+0x1cab/0x1e60 [ 10.561388][ 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 dd f3 a8 fc 49 8b 16 4c 89 ef 89 ee <67> 48 0f b9 3a eb 05 e8 19 dd 3a fc 49 bd 00 00 00 00 00 fc ff df [ 10.661418][ T1] RSP: 0000:ffffc90000067810 EFLAGS: 00010246 [ 10.661418][ T1] RAX: 1ffff11004dca808 RBX: dffffc0000000000 RCX: ffff88801daaddc0 [ 10.661418][ T1] RDX: ffff888026bdaba0 RSI: 0000000000000023 RDI: ffffffff9063cb10 [ 10.661418][ T1] RBP: 0000000000000023 R08: ffff888023a4adf3 R09: 1ffff110047495be [ 10.661418][ T1] R10: dffffc0000000000 R11: ffffed10047495bf R12: dffffc0000000000 [ 10.661418][ T1] R13: ffffffff9063cb10 R14: ffff888026e54040 R15: ffff888026e54030 [ 10.661418][ T1] ? debugfs_create_file_full+0x3f/0x60 [ 10.661418][ T1] drm_dev_register+0x7c/0xd80 [ 10.661418][ T1] vkms_create+0x40d/0x4f0 [ 10.661418][ T1] ? __pfx_vkms_init+0x10/0x10 [ 10.661418][ T1] vkms_init+0x57/0x80 [ 10.661418][ T1] do_one_initcall+0x250/0x870 [ 10.661418][ T1] ? __pfx_vkms_init+0x10/0x10 [ 10.661418][ T1] ? __pfx_do_one_initcall+0x10/0x10 [ 10.761363][ T1] ? lapic_next_event+0x11/0x20 [ 10.761363][ T1] ? clockevents_program_event+0x491/0x630 [ 10.761363][ T1] ? __pfx_clockevents_program_event+0x10/0x10 [ 10.761363][ T1] ? __pfx___schedule+0x10/0x10 [ 10.761363][ T1] ? irqentry_exit+0x218/0x8f0 [ 10.761363][ T1] ? irqentry_exit+0x218/0x8f0 [ 10.761363][ T1] ? lockdep_hardirqs_on+0x7a/0x110 [ 10.761363][ T1] ? irqentry_exit+0x218/0x8f0 [ 10.761363][ T1] ? trace_irq_disable+0x3b/0x140 [ 10.761363][ T1] ? next_arg+0x4a0/0x5e0 [ 10.761363][ T1] ? parameq+0x14d/0x170 [ 10.761363][ T1] ? parse_args+0x9c3/0xad0 [ 10.761363][ T1] ? rcu_is_watching+0x15/0xb0 [ 10.761363][ T1] do_initcall_level+0x10a/0x1a0 [ 10.761363][ T1] ? kernel_init+0x22/0x1d0 [ 10.761363][ T1] do_initcalls+0x59/0xa0 [ 10.761363][ T1] kernel_init_freeable+0x29d/0x3e0 [ 10.861464][ T1] ? __pfx_kernel_init+0x10/0x10 [ 10.861464][ T1] kernel_init+0x22/0x1d0 [ 10.861464][ T1] ? __pfx_kernel_init+0x10/0x10 [ 10.861464][ T1] ret_from_fork+0x514/0xb70 [ 10.861464][ T1] ? __pfx_ret_from_fork+0x10/0x10 [ 10.861464][ T1] ? __switch_to+0xc89/0x1420 [ 10.861464][ T1] ? __pfx_kernel_init+0x10/0x10 [ 10.861464][ T1] ret_from_fork_asm+0x1a/0x30 [ 10.861464][ T1] [ 10.861464][ T1] Kernel Offset: disabled [ 10.861464][ T1] Rebooting in 86400 seconds..