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@10.128.1.162" "pwd"]: exit status 255 ssh: connect to host 10.128.1.162 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 [ 0.000009][ T0] kvm-clock: using sched offset of 8540147466 cycles [ 0.000932][ T0] clocksource: kvm-clock: mask: 0xffffffffffffffff max_cycles: 0x1cd42e4dffb, max_idle_ns: 881590591483 ns [ 0.005348][ T0] tsc: Detected 2200.200 MHz processor [ 0.010485][ T0] last_pfn = 0x240000 max_arch_pfn = 0x400000000 [ 0.012090][ T0] MTRR map: 4 entries (3 fixed + 1 variable; max 19), built from 8 variable MTRRs [ 0.014013][ T0] x86/PAT: Configuration [0-7]: WB WC UC- UC WB WP UC- WT [ 0.015658][ T0] last_pfn = 0xbfffd max_arch_pfn = 0x400000000 [ 0.021421][ T0] found SMP MP-table at [mem 0x000f2890-0x000f289f] [ 0.023192][ T0] Using GB pages for direct mapping [ 0.027412][ T0] ACPI: Early table checksum verification disabled [ 0.029123][ T0] ACPI: RSDP 0x00000000000F2610 000014 (v00 Google) [ 0.031121][ T0] ACPI: RSDT 0x00000000BFFFFFB0 000038 (v01 Google GOOGRSDT 00000001 GOOG 00000001) [ 0.033004][ T0] ACPI: FACP 0x00000000BFFFF3B0 000114 (v06 Google GOOGFACP 00000001 GOOG 00000001) [ 0.035230][ T0] ACPI: DSDT 0x00000000BFFFD5C0 001DED (v02 Google GOOGDSDT 00000001 GOOG 00000001) [ 0.038593][ T0] ACPI: FACS 0x00000000BFFFD580 000040 [ 0.040615][ T0] ACPI: FACS 0x00000000BFFFD580 000040 [ 0.041574][ T0] ACPI: SRAT 0x00000000BFFFFEA0 0000C8 (v03 Google GOOGSRAT 00000001 GOOG 00000001) [ 0.043846][ T0] ACPI: APIC 0x00000000BFFFFDF0 000076 (v05 Google GOOGAPIC 00000001 GOOG 00000001) [ 0.045802][ T0] ACPI: SSDT 0x00000000BFFFF4D0 000914 (v02 Google GOOGSSDT 00000001 GOOG 00000001) [ 0.048437][ T0] ACPI: WAET 0x00000000BFFFFE70 000028 (v01 Google GOOGWAET 00000001 GOOG 00000001) [ 0.050052][ T0] ACPI: Reserving FACP table memory at [mem 0xbffff3b0-0xbffff4c3] [ 0.052465][ T0] ACPI: Reserving DSDT table memory at [mem 0xbfffd5c0-0xbffff3ac] [ 0.054980][ T0] ACPI: Reserving FACS table memory at [mem 0xbfffd580-0xbfffd5bf] [ 0.056449][ T0] ACPI: Reserving FACS table memory at [mem 0xbfffd580-0xbfffd5bf] [ 0.058486][ T0] ACPI: Reserving SRAT table memory at [mem 0xbffffea0-0xbfffff67] [ 0.060301][ T0] ACPI: Reserving APIC table memory at [mem 0xbffffdf0-0xbffffe65] [ 0.061903][ T0] ACPI: Reserving SSDT table memory at [mem 0xbffff4d0-0xbffffde3] [ 0.065686][ T0] ACPI: Reserving WAET table memory at [mem 0xbffffe70-0xbffffe97] [ 0.069108][ T0] ACPI: SRAT: Node 0 PXM 0 [mem 0x00000000-0x0009ffff] [ 0.070686][ T0] ACPI: SRAT: Node 0 PXM 0 [mem 0x00100000-0xbfffffff] [ 0.072627][ T0] ACPI: SRAT: Node 0 PXM 0 [mem 0x100000000-0x23fffffff] [ 0.074643][ T0] NUMA: Node 0 [mem 0x00001000-0x0009ffff] + [mem 0x00100000-0xbfffffff] -> [mem 0x00001000-0xbfffffff] [ 0.077212][ T0] NUMA: Node 0 [mem 0x00001000-0xbfffffff] + [mem 0x100000000-0x23fffffff] -> [mem 0x00001000-0x23fffffff] [ 0.080288][ T0] Faking node 0 at [mem 0x0000000000001000-0x0000000140000fff] (5120MB) [ 0.082586][ T0] Faking node 1 at [mem 0x0000000140001000-0x000000023fffffff] (4095MB) [ 0.084290][ T0] NODE_DATA(0) allocated [mem 0x13fffb140-0x140000fff] [ 0.086448][ T0] NODE_DATA(1) allocated [mem 0x23fff7140-0x23fffcfff] [ 0.380921][ T0] KernelAddressSanitizer initialized (generic) [ 0.382852][ T0] ACPI: PM-Timer IO Port: 0xb008 [ 0.384285][ T0] ACPI: LAPIC_NMI (acpi_id[0xff] dfl dfl lint[0x1]) [ 0.385841][ T0] IOAPIC[0]: apic_id 0, version 17, address 0xfec00000, GSI 0-23 [ 0.388139][ T0] ACPI: INT_SRC_OVR (bus 0 bus_irq 5 global_irq 5 high level) [ 0.390711][ T0] ACPI: INT_SRC_OVR (bus 0 bus_irq 9 global_irq 9 high level) [ 0.392656][ T0] ACPI: INT_SRC_OVR (bus 0 bus_irq 10 global_irq 10 high level) [ 0.394305][ T0] ACPI: INT_SRC_OVR (bus 0 bus_irq 11 global_irq 11 high level) [ 0.396553][ T0] ACPI: Using ACPI (MADT) for SMP configuration information [ 0.398397][ T0] CPU topo: Max. logical packages: 1 [ 0.399970][ T0] CPU topo: Max. logical nodes: 1 [ 0.401330][ T0] CPU topo: Num. nodes per package: 1 [ 0.402450][ T0] CPU topo: Max. logical dies: 1 [ 0.403895][ T0] CPU topo: Max. dies per package: 1 [ 0.405089][ T0] CPU topo: Max. threads per core: 2 [ 0.406521][ T0] CPU topo: Num. cores per package: 1 [ 0.408041][ T0] CPU topo: Num. threads per package: 2 [ 0.409219][ T0] CPU topo: Allowing 2 present CPUs plus 0 hotplug CPUs [ 0.411019][ T0] PM: hibernation: Registered nosave memory: [mem 0x00000000-0x00000fff] [ 0.412874][ T0] PM: hibernation: Registered nosave memory: [mem 0x0009f000-0x000fffff] [ 0.414413][ T0] PM: hibernation: Registered nosave memory: [mem 0xbfffd000-0xffffffff] [ 0.416359][ T0] [gap 0xc0000000-0xfffbbfff] available for PCI devices [ 0.417654][ T0] Booting paravirtualized kernel on KVM [ 0.418449][ T0] clocksource: refined-jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604462750000 ns [ 0.519653][ T0] Zone ranges: [ 0.520584][ T0] DMA [mem 0x0000000000001000-0x0000000000ffffff] [ 0.523123][ T0] DMA32 [mem 0x0000000001000000-0x00000000ffffffff] [ 0.524409][ T0] Normal [mem 0x0000000100000000-0x000000023fffffff] [ 0.526626][ T0] Device empty [ 0.527300][ T0] Movable zone start for each node [ 0.527966][ T0] Early memory node ranges [ 0.528668][ T0] node 0: [mem 0x0000000000001000-0x000000000009efff] [ 0.530468][ T0] node 0: [mem 0x0000000000100000-0x00000000bfffcfff] [ 0.532004][ T0] node 0: [mem 0x0000000100000000-0x0000000140000fff] [ 0.533044][ T0] node 1: [mem 0x0000000140001000-0x000000023fffffff] [ 0.533966][ T0] Initmem setup node 0 [mem 0x0000000000001000-0x0000000140000fff] [ 0.535352][ T0] Initmem setup node 1 [mem 0x0000000140001000-0x000000023fffffff] [ 0.574188][ T0] On node 0, zone DMA: 1 pages in unavailable ranges [ 0.575600][ T0] On node 0, zone DMA: 97 pages in unavailable ranges [ 0.645515][ T0] On node 0, zone Normal: 3 pages in unavailable ranges [ 0.716574][ T0] setup_percpu: NR_CPUS:8 nr_cpumask_bits:2 nr_cpu_ids:2 nr_node_ids:2 [ 0.718736][ T0] percpu: Embedded 71 pages/cpu s251400 r8192 d31224 u1048576 [ 0.720118][ T0] kvm-guest: PV spinlocks enabled [ 0.721071][ T0] PV qspinlock hash table entries: 256 (order: 0, 4096 bytes, linear) [ 0.722191][ 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 \ [ 0.737190][ T0] Kernel command line: comedi.comedi_num_legacy_minors=4 panic_on_warn=1 BOOT_IMAGE=/boot/bzImage root=/dev/sda1 console=ttyS0 [ 0.743754][ T0] Unknown kernel command line parameters "nbds_max=32", will be passed to user space. [ 0.745610][ T0] random: crng init done [ 0.746293][ T0] printk: log buffer data + meta data: 262144 + 917504 = 1179648 bytes [ 0.747726][ T0] software IO TLB: area num 2. [ 0.774700][ T0] Fallback order for Node 0: 0 1 [ 0.774721][ T0] Fallback order for Node 1: 1 0 [ 0.774734][ T0] Built 2 zonelists, mobility grouping on. Total pages: 2097051 [ 0.777339][ T0] Policy zone: Normal [ 0.778545][ T0] mem auto-init: stack:all(zero), heap alloc:on, heap free:off [ 0.779764][ T0] stackdepot: allocating hash table via alloc_large_system_hash [ 0.780827][ serialport: Connected to syzkaller.us-central1-c.ci-upstream-linux-next-kasan-gce-root-test-1 port 1 (session ID: 8cb8c52d6d7ee2f0cee901319c0d483160c79630eaef0737fd543d16627c2ce6, active connections: 1). T0] stackdepot hash table entries: 1048576 (order: 12, 16777216 bytes, linear) [ 0.786312][ T0] stackdepot: allocating space for 8192 stack pools via memblock [ 1.471451][ T0] ********************************************************** [ 1.472680][ T0] ** NOTICE NOTICE NOTICE NOTICE NOTICE NOTICE NOTICE ** [ 1.473785][ T0] ** ** [ 1.474945][ T0] ** This system shows unhashed kernel memory addresses ** [ 1.476055][ T0] ** via the console, logs, and other interfaces. This ** [ 1.477030][ T0] ** might reduce the security of your system. ** [ 1.478040][ T0] ** ** [ 1.479463][ T0] ** If you see this message and you are not debugging ** [ 1.480638][ T0] ** the kernel, report this immediately to your system ** [ 1.481842][ T0] ** administrator! ** [ 1.483000][ T0] ** ** [ 1.484645][ T0] ** Use hash_pointers=always to force this mode off ** [ 1.485762][ T0] ** ** [ 1.486848][ T0] ** NOTICE NOTICE NOTICE NOTICE NOTICE NOTICE NOTICE ** [ 1.487829][ T0] ********************************************************** [ 1.491483][ T0] SLUB: HWalign=64, Order=0-3, MinObjects=0, CPUs=2, Nodes=2 [ 1.601143][ T0] allocated 167772160 bytes of page_ext [ 1.602071][ T0] Node 0, zone DMA: page owner found early allocated 0 pages [ 1.616965][ T0] Node 0, zone DMA32: page owner found early allocated 21185 pages [ 1.623033][ T0] Node 0, zone Normal: page owner found early allocated 66 pages [ 1.635134][ T0] Node 1, zone Normal: page owner found early allocated 19847 pages [ 1.637100][ T0] Kernel/User page tables isolation: enabled [ 1.639833][ T0] Dynamic Preempt: full [ 1.642012][ T0] Running RCU self tests [ 1.642633][ T0] Running RCU synchronous self tests [ 1.643351][ T0] rcu: Preemptible hierarchical RCU implementation. [ 1.644636][ T0] rcu: RCU lockdep checking is enabled. [ 1.645584][ T0] rcu: RCU restricting CPUs from NR_CPUS=8 to nr_cpu_ids=2. [ 1.646716][ T0] rcu: RCU callback double-/use-after-free debug is enabled. [ 1.647855][ T0] rcu: RCU debug extended QS entry/exit. [ 1.648682][ T0] All grace periods are expedited (rcu_expedited). [ 1.649864][ T0] Trampoline variant of Tasks RCU enabled. [ 1.650742][ T0] Tracing variant of Tasks RCU enabled. [ 1.651853][ T0] rcu: RCU calculated value of scheduler-enlistment delay is 10 jiffies. [ 1.653037][ T0] rcu: Adjusting geometry for rcu_fanout_leaf=16, nr_cpu_ids=2 [ 1.654666][ T0] Running RCU synchronous self tests [ 1.655669][ T0] RCU Tasks: Setting shift to 1 and lim to 1 rcu_task_cb_adjust=1 rcu_task_cpu_ids=2. [ 1.814514][ T0] NR_IRQS: 4352, nr_irqs: 440, preallocated irqs: 16 [ 1.816642][ T0] rcu: srcu_init: Setting srcu_struct sizes based on contention. [ 1.817819][ T0] clocksource: jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604462750000 ns [ 1.819922][ T0] kfence: initialized - using 2097152 bytes for 255 objects at 0xffff88823be00000-0xffff88823c000000 [ 1.823011][ T0] Console: colour VGA+ 80x25 [ 1.823754][ T0] printk: legacy console [ttyS0] enabled [ 1.823754][ T0] printk: legacy console [ttyS0] enabled [ 1.825776][ T0] printk: legacy bootconsole [earlyser0] disabled [ 1.825776][ T0] printk: legacy bootconsole [earlyser0] disabled [ 1.828118][ T0] Lock dependency validator: Copyright (c) 2006 Red Hat, Inc., Ingo Molnar [ 1.829457][ T0] ... MAX_LOCKDEP_SUBCLASSES: 8 [ 1.830338][ T0] ... MAX_LOCK_DEPTH: 48 [ 1.831432][ T0] ... MAX_LOCKDEP_KEYS: 8192 [ 1.832488][ T0] ... CLASSHASH_SIZE: 4096 [ 1.833252][ T0] ... MAX_LOCKDEP_ENTRIES: 1048576 [ 1.834031][ T0] ... MAX_LOCKDEP_CHAINS: 1048576 [ 1.834827][ T0] ... CHAINHASH_SIZE: 524288 [ 1.835719][ T0] memory used by lock dependency info: 106625 kB [ 1.836748][ T0] memory used for stack traces: 8320 kB [ 1.837595][ T0] per task-struct memory footprint: 1920 bytes [ 1.838806][ T0] mempolicy: Enabling automatic NUMA balancing. Configure with numa_balancing= or the kernel.numa_balancing sysctl [ 1.840828][ T0] ACPI: Core revision 20260408 [ 1.843013][ T0] APIC: Switch to symmetric I/O mode setup [ 1.844448][ T0] x2apic enabled [ 1.848709][ T0] APIC: Switched APIC routing to: physical x2apic [ 1.856327][ T0] ..TIMER: vector=0x30 apic1=0 pin1=0 apic2=-1 pin2=-1 [ 1.858163][ T0] clocksource: tsc-early: mask: 0xffffffffffffffff max_cycles: 0x1fb6efd229d, max_idle_ns: 440795265322 ns [ 1.860055][ T0] Calibrating delay loop (skipped) preset value.. 4400.40 BogoMIPS (lpj=22002000) [ 1.862448][ T0] Last level iTLB entries: 4KB 64, 2MB 8, 4MB 8 [ 1.870118][ T0] Last level dTLB entries: 4KB 64, 2MB 32, 4MB 32, 1GB 4 [ 1.871606][ T0] mitigations: Enabled attack vectors: user_kernel, user_user, guest_host, guest_guest, SMT mitigations: auto [ 1.873370][ T0] Speculative Store Bypass: Mitigation: Speculative Store Bypass disabled via prctl [ 1.875123][ T0] Spectre V2 : Mitigation: IBRS [ 1.875907][ T0] RETBleed: Mitigation: IBRS [ 1.876654][ T0] ITS: Mitigation: Aligned branch/return thunks [ 1.877756][ T0] Spectre V2 : User space: Mitigation: STIBP via prctl [ 1.878915][ T0] MDS: Mitigation: Clear CPU buffers [ 1.880057][ T0] TAA: Mitigation: Clear CPU buffers [ 1.880884][ T0] MMIO Stale Data: Vulnerable: Clear CPU buffers attempted, no microcode [ 1.882096][ T0] Spectre V1 : Mitigation: usercopy/swapgs barriers and __user pointer sanitization [ 1.883373][ T0] Spectre V2 : Spectre v2 / SpectreRSB: Filling RSB on context switch and VMEXIT [ 1.884694][ T0] Spectre V2 : Enabling IBPB for BPF [ 1.885580][ T0] Spectre V2 : mitigation: Enabling conditional Indirect Branch Prediction Barrier [ 1.887063][ T0] active return thunk: its_return_thunk [ 1.887914][ T0] Spectre V2 : Spectre BHI mitigation: SW BHB clearing on syscall and VM exit [ 1.889308][ T0] x86/fpu: Supporting XSAVE feature 0x001: 'x87 floating point registers' [ 1.890053][ T0] x86/fpu: Supporting XSAVE feature 0x002: 'SSE registers' [ 1.891352][ T0] x86/fpu: Supporting XSAVE feature 0x004: 'AVX registers' [ 1.892869][ T0] x86/fpu: xstate_offset[2]: 576, xstate_sizes[2]: 256 [ 1.893899][ T0] x86/fpu: Enabled xstate features 0x7, context size is 832 bytes, using 'standard' format. [ 2.171040][ T0] pid_max: default: 32768 minimum: 301 [ 2.173232][ T0] landlock: Up and running. [ 2.173869][ T0] Yama: becoming mindful. [ 2.174836][ T0] TOMOYO Linux initialized [ 2.176372][ T0] AppArmor: AppArmor initialized [ 2.179170][ T0] LSM support for eBPF active [ 2.185539][ T0] Dentry cache hash table entries: 1048576 (order: 11, 8388608 bytes, vmalloc hugepage) [ 2.189665][ T0] Inode-cache hash table entries: 524288 (order: 10, 4194304 bytes, vmalloc hugepage) [ 2.190389][ T0] Mount-cache hash table entries: 16384 (order: 5, 131072 bytes, vmalloc) [ 2.191810][ T0] Mountpoint-cache hash table entries: 16384 (order: 5, 131072 bytes, vmalloc) [ 2.194933][ T0] VFS: Finished mounting rootfs on nullfs [ 2.201037][ T0] Running RCU synchronous self tests [ 2.202226][ T0] Running RCU synchronous self tests [ 2.324187][ T1] smpboot: CPU0: Intel(R) Xeon(R) CPU @ 2.20GHz (family: 0x6, model: 0x4f, stepping: 0x0) [ 2.330043][ T1] Performance Events: unsupported CPU family 6 model 79 no PMU driver, software events only. [ 2.330043][ T1] signal: max sigframe size: 1776 [ 2.330043][ T1] rcu: Hierarchical SRCU implementation. [ 2.330056][ T1] rcu: Max phase no-delay instances is 1000. [ 2.332233][ T1] Timer migration: 1 hierarchy levels; 8 children per group; 0 crossnode level [ 2.382197][ T1] NMI watchdog: Perf NMI watchdog permanently disabled [ 2.384297][ T1] smp: Bringing up secondary CPUs ... [ 2.387309][ T1] smpboot: x86: Booting SMP configuration: [ 2.388992][ T1] .... node #0, CPUs: #1 [ 2.390819][ 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. [ 2.393379][ 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. [ 2.396323][ 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. [ 2.400163][ T1] smp: Brought up 2 nodes, 2 CPUs [ 2.401283][ T1] smpboot: Total of 2 processors activated (8800.80 BogoMIPS) [ 2.403960][ T1] Memory: 6456632K/8388204K available (177669K kernel code, 30336K rwdata, 41964K rodata, 27032K init, 120568K bss, 1741800K reserved, 0K cma-reserved) [ 2.410820][ T1] devtmpfs: initialized [ 2.412722][ T1] x86/mm: Memory block size: 128MB [ 2.465014][ T1] Running RCU synchronous self tests [ 2.465986][ T1] Running RCU synchronous self tests [ 2.467017][ T1] Running RCU Tasks wait API self tests [ 2.580175][ T1] Running RCU Tasks Trace wait API self tests [ 2.581749][ T1] posixtimers hash table entries: 1024 (order: 5, 73728 bytes, vmalloc) [ 2.582689][ T1] futex hash table entries: 256 (32768 bytes on 2 NUMA nodes, total 64 KiB, linear). [ 2.586581][ T1] xor: automatically using best checksumming function avx [ 2.593747][ T1] PM: RTC time: 00:08:25, date: 2026-07-18 [ 2.603183][ T1] NET: Registered PF_NETLINK/PF_ROUTE protocol family [ 2.612156][ T1] audit: initializing netlink subsys (disabled) [ 2.613781][ T30] audit: type=2000 audit(1784333305.720:1): state=initialized audit_enabled=0 res=1 [ 2.614748][ T1] thermal_sys: Registered thermal governor 'step_wise' [ 2.620056][ T1] cpuidle: using governor menu [ 2.621204][ T1] NET: Registered PF_QIPCRTR protocol family [ 2.628838][ T1] dca service started, version 1.12.1 [ 2.630117][ T10] Callback from call_rcu_tasks_trace() invoked. [ 2.630432][ T1] PCI: Using configuration type 1 for base access [ 2.650731][ T1] HugeTLB: registered 1.00 GiB page size, pre-allocated 0 pages [ 2.651689][ T1] HugeTLB: 16380 KiB vmemmap can be freed for a 1.00 GiB page [ 2.653129][ T1] HugeTLB: registered 2.00 MiB page size, pre-allocated 0 pages [ 2.654689][ T1] HugeTLB: 28 KiB vmemmap can be freed for a 2.00 MiB page [ 2.695317][ T1] raid6: using avx2x2 recovery algorithm [ 2.701348][ T1] ACPI: Added _OSI(Module Device) [ 2.702324][ T1] ACPI: Added _OSI(Processor Device) [ 2.703140][ T1] ACPI: Added _OSI(Processor Aggregator Device) [ 2.946938][ T1] ACPI: 2 ACPI AML tables successfully acquired and loaded [ 2.993684][ T1] ACPI: \_SB_: platform _OSC: OS support mask [000e7eee] [ 3.045782][ T1] ACPI: Interpreter enabled [ 3.047414][ T1] ACPI: PM: (supports S0 S3 S4 S5) [ 3.048525][ T1] ACPI: Using IOAPIC for interrupt routing [ 3.050169][ T1] PCI: Using host bridge windows from ACPI; if necessary, use "pci=nocrs" and report a bug [ 3.052189][ T1] PCI: Ignoring E820 reservations for host bridge windows [ 3.065656][ T1] ACPI: Enabled 16 GPEs in block 00 to 0F [ 3.465582][ T1] ACPI: PCI Root Bridge [PCI0] (domain 0000 [bus 00-ff]) [ 3.466930][ T1] acpi PNP0A03:00: _OSC: OS supports [ASPM ClockPM Segments MSI HPX-Type3] [ 3.468451][ T1] acpi PNP0A03:00: _OSC: not requesting OS control; OS requires [ExtendedConfig ASPM ClockPM MSI] [ 3.471013][ T1] acpi PNP0A03:00: _OSC: platform retains control of PCIe features (AE_ERROR) [ 3.473179][ T1] acpi PNP0A03:00: fail to add MMCONFIG information, can't access extended configuration space under this bridge [ 3.529103][ T1] PCI host bridge to bus 0000:00 [ 3.530643][ T1] pci_bus 0000:00: root bus resource [io 0x0000-0x0cf7 window] [ 3.531837][ T1] pci_bus 0000:00: root bus resource [io 0x0d00-0x0fff window] [ 3.533239][ T1] pci_bus 0000:00: root bus resource [io 0xc000-0xffff window] [ 3.534735][ T1] pci_bus 0000:00: root bus resource [io 0xa000-0xbfff window] [ 3.536125][ T1] pci_bus 0000:00: root bus resource [mem 0x000a0000-0x000bffff window] [ 3.537401][ T1] pci_bus 0000:00: root bus resource [mem 0xc0000000-0xfebfefff window] [ 3.539269][ T1] pci_bus 0000:00: root bus resource [bus 00-ff] [ 3.540477][ T1] pci 0000:00:00.0: [8086:1237] type 00 class 0x060000 conventional PCI endpoint [ 3.545775][ T1] pci 0000:00:01.0: [8086:7110] type 00 class 0x060100 conventional PCI endpoint [ 3.555843][ T1] pci 0000:00:01.3: [8086:7113] type 00 class 0x068000 conventional PCI endpoint [ 3.560466][ T1] pci 0000:00:01.3: quirk: [io 0xb000-0xb03f] claimed by PIIX4 ACPI [ 3.568771][ T1] pci 0000:00:03.0: [1af4:1004] type 00 class 0x000000 conventional PCI endpoint [ 3.573809][ T1] pci 0000:00:03.0: BAR 0 [io 0xc000-0xc03f] [ 3.574954][ T1] pci 0000:00:03.0: BAR 1 [mem 0xfe800000-0xfe80007f] [ 3.585939][ T1] pci 0000:00:04.0: [1af4:1000] type 00 class 0x020000 conventional PCI endpoint [ 3.591605][ T1] pci 0000:00:04.0: BAR 0 [io 0xc040-0xc07f] [ 3.592779][ T1] pci 0000:00:04.0: BAR 1 [mem 0xfe801000-0xfe80107f] [ 3.601651][ T1] pci 0000:00:05.0: [1ae0:a002] type 00 class 0x030000 conventional PCI endpoint [ 3.610287][ T1] pci 0000:00:05.0: BAR 0 [mem 0xfe000000-0xfe7fffff] [ 3.612368][ T1] pci 0000:00:05.0: Video device with shadowed ROM at [mem 0x000c0000-0x000dffff] [ 3.622126][ T1] pci 0000:00:06.0: [1af4:1002] type 00 class 0x00ff00 conventional PCI endpoint [ 3.628329][ T1] pci 0000:00:06.0: BAR 0 [io 0xc080-0xc09f] [ 3.636921][ T1] pci 0000:00:07.0: [1af4:1005] type 00 class 0x00ff00 conventional PCI endpoint [ 3.641809][ T1] pci 0000:00:07.0: BAR 0 [io 0xc0a0-0xc0bf] [ 3.643031][ T1] pci 0000:00:07.0: BAR 1 [mem 0xfe802000-0xfe80203f] [ 3.700435][ T1] ACPI: PCI: Interrupt link LNKA configured for IRQ 10 [ 3.710646][ T1] ACPI: PCI: Interrupt link LNKB configured for IRQ 10 [ 3.720183][ T1] ACPI: PCI: Interrupt link LNKC configured for IRQ 11 [ 3.730316][ T1] ACPI: PCI: Interrupt link LNKD configured for IRQ 11 [ 3.736253][ T1] ACPI: PCI: Interrupt link LNKS configured for IRQ 9 [ 3.780167][ T1] iommu: Default domain type: Translated [ 3.781208][ T1] iommu: DMA domain TLB invalidation policy: lazy mode [ 3.791222][ T1] SCSI subsystem initialized [ 3.802034][ T1] ACPI: bus type USB registered [ 3.804532][ T1] usbcore: registered new interface driver usbfs [ 3.806183][ T1] usbcore: registered new interface driver hub [ 3.807767][ T1] usbcore: registered new device driver usb [ 3.813086][ T1] mc: Linux media interface: v0.10 [ 3.814342][ T1] videodev: Linux video capture interface: v2.00 [ 3.816805][ T1] pps_core: LinuxPPS API ver. 1 registered [ 3.818190][ T1] pps_core: Software ver. 5.3.6 - Copyright 2005-2007 Rodolfo Giometti [ 3.820318][ T1] PTP clock support registered [ 3.830426][ T1] EDAC MC: Ver: 3.0.0 [ 3.842737][ T1] Advanced Linux Sound Architecture Driver Initialized. [ 3.854022][ T1] Bluetooth: Core ver 2.22 [ 3.855196][ T1] NET: Registered PF_BLUETOOTH protocol family [ 3.856132][ T1] Bluetooth: HCI device and connection manager initialized [ 3.857399][ T1] Bluetooth: HCI socket layer initialized [ 3.858526][ T1] Bluetooth: L2CAP socket layer initialized [ 3.859995][ T1] Bluetooth: SCO socket layer initialized [ 3.860239][ T1] NET: Registered PF_ATMPVC protocol family [ 3.861784][ T1] NetLabel: Initializing [ 3.862512][ T1] NetLabel: domain hash size = 128 [ 3.863630][ T1] NetLabel: protocols = UNLABELED CIPSOv4 CALIPSO [ 3.865673][ T1] NetLabel: unlabeled traffic allowed by default [ 3.871456][ T1] nfc: nfc_init: NFC Core ver 0.1 [ 3.872996][ T1] NET: Registered PF_NFC protocol family [ 3.874523][ T1] mctp: management component transport protocol core [ 3.875998][ T1] NET: Registered PF_MCTP protocol family [ 3.877660][ T1] PCI: Using ACPI for IRQ routing [ 3.878919][ T1] e820: register RAM buffer resource [mem 0x0009fc00-0x0009ffff] [ 3.880130][ T1] e820: register RAM buffer resource [mem 0xbfffd000-0xbfffffff] [ 3.882952][ T1] pci 0000:00:05.0: vgaarb: setting as boot VGA device [ 3.884508][ T1] pci 0000:00:05.0: vgaarb: bridge control possible [ 3.885811][ T1] pci 0000:00:05.0: vgaarb: VGA device added: decodes=io+mem,owns=io+mem,locks=none [ 3.888108][ T1] vgaarb: loaded [ 3.898382][ T1] clocksource: Switched to clocksource kvm-clock [ 3.910347][ T1] VFS: Disk quotas dquot_6.6.0 [ 3.911860][ T1] VFS: Dquot-cache hash table entries: 512 (4096 bytes) [ 3.923156][ T1] netfs: FS-Cache loaded [ 3.926739][ T1] CacheFiles: Loaded [ 3.928770][ T1] TOMOYO: 2.6.0 [ 3.929776][ T1] Mandatory Access Control activated. [ 3.937646][ T1] AppArmor: AppArmor Filesystem Enabled [ 3.939512][ T1] pnp: PnP ACPI init [ 3.997083][ T1] pnp: PnP ACPI: found 6 devices [ 4.088387][ T1] clocksource: acpi_pm: mask: 0xffffff max_cycles: 0xffffff, max_idle_ns: 2085701024 ns [ 4.092456][ T1] NET: Registered PF_INET protocol family [ 4.096137][ T1] IP idents hash table entries: 131072 (order: 8, 1048576 bytes, vmalloc) [ 4.109539][ T1] tcp_listen_portaddr_hash hash table entries: 4096 (order: 7, 294912 bytes, vmalloc) [ 4.112146][ T1] Table-perturb hash table entries: 65536 (order: 6, 262144 bytes, vmalloc) [ 4.114924][ T1] TCP established hash table entries: 65536 (order: 7, 524288 bytes, vmalloc) [ 4.127356][ T1] TCP bind hash table entries: 65536 (order: 12, 9437184 bytes, vmalloc hugepage) [ 4.134815][ T1] TCP: Hash tables configured (established 65536 bind 65536) [ 4.138836][ T1] MPTCP token hash table entries: 8192 (order: 8, 720896 bytes, vmalloc) [ 4.143082][ T1] UDP hash table entries: 4096 (order: 8, 1048576 bytes, vmalloc) [ 4.147118][ T1] NET: Registered PF_UNIX/PF_LOCAL protocol family [ 4.163639][ T1] RPC: Registered named UNIX socket transport module. [ 4.165248][ T1] RPC: Registered udp transport module. [ 4.166604][ T1] RPC: Registered tcp transport module. [ 4.167801][ T1] RPC: Registered tcp-with-tls transport module. [ 4.169295][ T1] RPC: Registered tcp NFSv4.1 backchannel transport module. [ 4.176157][ T1] NET: Registered PF_XDP protocol family [ 4.177808][ T1] pci_bus 0000:00: resource 4 [io 0x0000-0x0cf7 window] [ 4.179801][ T1] pci_bus 0000:00: resource 5 [io 0x0d00-0x0fff window] [ 4.181948][ T1] pci_bus 0000:00: resource 6 [io 0xc000-0xffff window] [ 4.184003][ T1] pci_bus 0000:00: resource 7 [io 0xa000-0xbfff window] [ 4.186128][ T1] pci_bus 0000:00: resource 8 [mem 0x000a0000-0x000bffff window] [ 4.187814][ T1] pci_bus 0000:00: resource 9 [mem 0xc0000000-0xfebfefff window] [ 4.191622][ T1] pci 0000:00:00.0: Limiting direct PCI/PCI transfers [ 4.193967][ T1] PCI: CLS 0 bytes, default 64 [ 4.202735][ T1] PCI-DMA: Using software bounce buffering for IO (SWIOTLB) [ 4.204211][ T1] software IO TLB: mapped [mem 0x00000000b4600000-0x00000000b8600000] (64MB) [ 4.207568][ T1] ACPI: bus type thunderbolt registered [ 4.211322][ T58] kworker/u8:2 (58) used greatest stack depth: 27296 bytes left [ 4.220197][ T1] RAPL PMU: API unit is 2^-32 Joules, 0 fixed counters, 10737418240 ms ovfl timer [ 4.250165][ T1] kvm_amd: CPU 0 isn't AMD or Hygon [ 4.251852][ T1] clocksource: tsc: mask: 0xffffffffffffffff max_cycles: 0x1fb6efd229d, max_idle_ns: 440795265322 ns [ 4.255665][ T1] clocksource: Switched to clocksource tsc [ 4.278000][ T72] kworker/u8:3 (72) used greatest stack depth: 27240 bytes left [ 4.294726][ T80] kworker/u8:2 (80) used greatest stack depth: 26824 bytes left [ 4.298983][ T1] Initialise system trusted keyrings [ 4.304241][ T1] workingset: timestamp_bits=40 (anon: 35) max_order=21 bucket_order=0 (anon: 0) [ 4.317335][ T1] DLM installed [ 4.326263][ T1] squashfs: version 4.0 (2009/01/31) Phillip Lougher [ 4.338677][ T1] NFS: Registering the id_resolver key type [ 4.340381][ T1] Key type id_resolver registered [ 4.341623][ T1] Key type id_legacy registered [ 4.344196][ T1] nfs4filelayout_init: NFSv4 File Layout Driver Registering... [ 4.346035][ T1] nfs4flexfilelayout_init: NFSv4 Flexfile Layout Driver Registering... [ 4.350950][ T1] smbdirect: subsystem loading... [ 4.359478][ T1] smbdirect: subsystem loaded [ 4.378241][ T1] Key type cifs.spnego registered [ 4.379531][ T1] Key type cifs.idmap registered [ 4.384954][ T1] ntfs3: Enabled Linux POSIX ACLs support [ 4.386416][ T1] ntfs3: Read-only LZX/Xpress compression included [ 4.388560][ T1] jffs2: version 2.2. (NAND) (SUMMARY) © 2001-2006 Red Hat, Inc. [ 4.392740][ T1] romfs: ROMFS MTD (C) 2007 Red Hat, Inc. [ 4.393890][ T1] QNX4 filesystem 0.2.3 registered. [ 4.395177][ T1] qnx6: QNX6 filesystem 1.0.0 registered. [ 4.398385][ T1] fuse: init (API version 7.45) [ 4.403004][ T1] orangefs_debugfs_init: called with debug mask: :none: :0: [ 4.406165][ T1] orangefs_init: module version upstream loaded [ 4.408806][ T1] JFS: nTxBlock = 8192, nTxLock = 65536 [ 4.422902][ T1] SGI XFS with ACLs, security attributes, realtime, scrub, repair, quota, no debug enabled [ 4.434161][ T1] 9p: Installing v9fs 9p2000 file system support [ 4.436552][ T1] NILFS version 2 loaded [ 4.437390][ T1] befs: version: 0.9.3 [ 4.439700][ T1] ocfs2: Registered cluster interface o2cb [ 4.441594][ T1] ocfs2: Registered cluster interface user [ 4.453916][ T1] OCFS2 User DLM kernel interface loaded [ 4.482213][ T1] gfs2: GFS2 installed [ 4.502353][ T1] ceph: loaded (mds proto 32) [ 4.513245][ T1] NET: Registered PF_ALG protocol family [ 4.515877][ T1] async_tx: api initialized (async) [ 4.517007][ T1] Key type asymmetric registered [ 4.518528][ T1] Asymmetric key parser 'x509' registered [ 4.520006][ T1] Asymmetric key parser 'pkcs8' registered [ 4.521494][ T1] Key type pkcs7_test registered [ 4.523594][ T1] Block layer SCSI generic (bsg) driver version 0.4 loaded (major 239) [ 4.527627][ T1] io scheduler mq-deadline registered [ 4.529038][ T1] io scheduler kyber registered [ 4.531334][ T1] io scheduler bfq registered [ 4.534222][ T1] raid6: skipped pq benchmark and selected avx2x4 [ 4.553307][ T1] input: Power Button as /devices/platform/LNXPWRBN:00/input/input0 [ 4.559267][ T1] ACPI: button: Power Button [PWRF] [ 4.563987][ T1] input: Sleep Button as /devices/platform/LNXSLPBN:00/input/input1 [ 4.568471][ T1] ACPI: button: Sleep Button [SLPF] [ 4.593776][ T1] ioatdma: Intel(R) QuickData Technology Driver 5.00 [ 4.624921][ T10] ACPI: \_SB_.LNKC: Enabled at IRQ 11 [ 4.626353][ T10] virtio-pci 0000:00:03.0: virtio_pci: leaving for legacy driver [ 4.660486][ T10] ACPI: \_SB_.LNKD: Enabled at IRQ 10 [ 4.661909][ T10] virtio-pci 0000:00:04.0: virtio_pci: leaving for legacy driver [ 4.694431][ T10] ACPI: \_SB_.LNKB: Enabled at IRQ 10 [ 4.695390][ T10] virtio-pci 0000:00:06.0: virtio_pci: leaving for legacy driver [ 4.719007][ T10] virtio-pci 0000:00:07.0: virtio_pci: leaving for legacy driver [ 4.941193][ T368] kworker/u8:2 (368) used greatest stack depth: 26704 bytes left [ 4.990628][ T402] kworker/u8:6 (402) used greatest stack depth: 26640 bytes left [ 5.434508][ T1] N_HDLC line discipline registered with maxframe=4096 [ 5.437575][ T1] Serial: 8250/16550 driver, 4 ports, IRQ sharing enabled [ 5.448987][ T1] 00:02: ttyS0 I/O:0x3f8 (irq = 4, base_baud = 115200) is a 16550A [ 5.473918][ T1] 00:03: ttyS1 I/O:0x2f8 (irq = 3, base_baud = 115200) is a 16550A [ 5.495703][ T1] 00:04: ttyS2 I/O:0x3e8 (irq = 6, base_baud = 115200) is a 16550A [ 5.515261][ T1] 00:05: ttyS3 I/O:0x2e8 (irq = 7, base_baud = 115200) is a 16550A [ 5.556243][ T1] Non-volatile memory driver v1.3 [ 5.583843][ T1] usbcore: registered new interface driver xillyusb [ 5.592117][ T1] ACPI: bus type drm_connector registered [ 5.607780][ T1] [drm] Initialized vgem 1.0.0 for vgem on minor 0 [ 5.618633][ T1] ------------[ cut here ]------------ [ 5.619917][ T1] [PLANE:35:plane-0] pixel format with alpha exposed but blend mode not setup [ 5.619943][ T1] WARNING: drivers/gpu/drm/drm_mode_config.c:873 at drm_mode_config_validate+0x1c6a/0x1e60, CPU#0: swapper/0/1 [ 5.624586][ T1] Modules linked in: [ 5.625924][ T1] CPU: 0 UID: 0 PID: 1 Comm: swapper/0 Not tainted syzkaller #0 PREEMPT(full) [ 5.629182][ T1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/25/2026 [ 5.631665][ T1] RIP: 0010:drm_mode_config_validate+0x1cab/0x1e60 [ 5.633879][ 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 4d 08 a9 fc 49 8b 16 4c 89 ef 89 ee <67> 48 0f b9 3a eb 05 e8 39 fe 3a fc 49 bd 00 00 00 00 00 fc ff df [ 5.638029][ T1] RSP: 0000:ffffc90000067810 EFLAGS: 00010246 [ 5.639535][ T1] RAX: 1ffff11004c3f408 RBX: dffffc0000000000 RCX: ffff88801daaddc0 [ 5.641276][ T1] RDX: ffff888025fd9e00 RSI: 0000000000000023 RDI: ffffffff9063bf50 [ 5.643564][ T1] RBP: 0000000000000023 R08: ffff888023a52233 R09: 1ffff1100474a446 [ 5.645189][ T1] R10: dffffc0000000000 R11: ffffed100474a447 R12: dffffc0000000000 [ 5.647228][ T1] R13: ffffffff9063bf50 R14: ffff8880261fa040 R15: ffff8880261fa030 [ 5.649873][ T1] FS: 0000000000000000(0000) GS:ffff888124f37000(0000) knlGS:0000000000000000 [ 5.653019][ T1] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 5.654269][ T1] CR2: ffff88823ffff000 CR3: 000000000e946000 CR4: 00000000003526f0 [ 5.656633][ T1] Call Trace: [ 5.657528][ T1] [ 5.658631][ T1] ? debugfs_create_file_full+0x3f/0x60 [ 5.659818][ T1] drm_dev_register+0x7c/0xd80 [ 5.660899][ T1] vkms_create+0x40d/0x4f0 [ 5.662498][ T1] ? __pfx_vkms_init+0x10/0x10 [ 5.664219][ T1] vkms_init+0x57/0x80 [ 5.665333][ T1] do_one_initcall+0x250/0x870 [ 5.667256][ T1] ? __pfx_vkms_init+0x10/0x10 [ 5.668051][ T1] ? __pfx_do_one_initcall+0x10/0x10 [ 5.669301][ T1] ? __pfx___schedule+0x10/0x10 [ 5.670432][ T1] ? _raw_spin_unlock_irqrestore+0x30/0x80 [ 5.672161][ T1] ? irqentry_exit+0x218/0x8f0 [ 5.673915][ T1] ? lockdep_hardirqs_on+0x7a/0x110 [ 5.675274][ T1] ? irqentry_exit+0x218/0x8f0 [ 5.676674][ T1] ? trace_irq_disable+0x3b/0x140 [ 5.677925][ T1] ? strlen+0x2e/0x70 [ 5.679280][ T1] ? next_arg+0x4a0/0x5e0 [ 5.680597][ T1] ? parameq+0x14d/0x170 [ 5.681665][ T1] ? parse_args+0x9c3/0xad0 [ 5.682890][ T1] ? rcu_is_watching+0x15/0xb0 [ 5.684359][ T1] do_initcall_level+0x10a/0x1a0 [ 5.685847][ T1] ? kernel_init+0x22/0x1d0 [ 5.687048][ T1] do_initcalls+0x59/0xa0 [ 5.688177][ T1] kernel_init_freeable+0x29d/0x3e0 [ 5.689819][ T1] ? __pfx_kernel_init+0x10/0x10 [ 5.690933][ T1] kernel_init+0x22/0x1d0 [ 5.691810][ T1] ? __pfx_kernel_init+0x10/0x10 [ 5.693064][ T1] ret_from_fork+0x514/0xb70 [ 5.694200][ T1] ? __pfx_ret_from_fork+0x10/0x10 [ 5.695403][ T1] ? __switch_to+0xc89/0x1420 [ 5.696159][ T1] ? __pfx_kernel_init+0x10/0x10 [ 5.697814][ T1] ret_from_fork_asm+0x1a/0x30 [ 5.698893][ T1] [ 5.699551][ T1] Kernel panic - not syncing: kernel: panic_on_warn set ... [ 5.701433][ T1] CPU: 0 UID: 0 PID: 1 Comm: swapper/0 Not tainted syzkaller #0 PREEMPT(full) [ 5.703013][ T1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/25/2026 [ 5.703013][ T1] Call Trace: [ 5.703013][ T1] [ 5.703013][ T1] vpanic+0x56c/0xa60 [ 5.703013][ T1] ? __pfx__printk+0x10/0x10 [ 5.703013][ T1] ? __pfx_vpanic+0x10/0x10 [ 5.703013][ T1] ? is_bpf_text_address+0x292/0x2b0 [ 5.703013][ T1] ? is_bpf_text_address+0x26/0x2b0 [ 5.703013][ T1] panic+0xc5/0xd0 [ 5.703013][ T1] ? __pfx_panic+0x10/0x10 [ 5.703013][ T1] ? ret_from_fork_asm+0x1a/0x30 [ 5.703013][ T1] __warn+0x315/0x4c0 [ 5.703013][ T1] ? drm_mode_config_validate+0x1c6a/0x1e60 [ 5.703013][ T1] ? drm_mode_config_validate+0x1c6a/0x1e60 [ 5.703013][ T1] __report_bug+0x276/0x570 [ 5.703013][ T1] ? look_up_lock_class+0x57/0x110 [ 5.703013][ T1] ? drm_mode_config_validate+0x1c6a/0x1e60 [ 5.703013][ T1] ? __pfx___report_bug+0x10/0x10 [ 5.703013][ T1] ? __pfx_inode_set_ctime_to_ts+0x10/0x10 [ 5.703013][ T1] ? lockdep_hardirqs_on+0x7a/0x110 [ 5.703013][ T1] ? seqcount_lockdep_reader_access+0xea/0x100 [ 5.703013][ T1] ? ktime_get_coarse_real_ts64_mg+0x1c5/0x1e0 [ 5.703013][ T1] report_bug_entry+0x19a/0x290 [ 5.703013][ T1] ? drm_mode_config_validate+0x1cab/0x1e60 [ 5.703013][ T1] ? drm_mode_config_validate+0x1cb0/0x1e60 [ 5.703013][ T1] handle_bug+0xce/0x200 [ 5.703013][ T1] exc_invalid_op+0x1a/0x50 [ 5.703013][ T1] asm_exc_invalid_op+0x1a/0x20 [ 5.703013][ T1] RIP: 0010:drm_mode_config_validate+0x1cab/0x1e60 [ 5.703013][ 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 4d 08 a9 fc 49 8b 16 4c 89 ef 89 ee <67> 48 0f b9 3a eb 05 e8 39 fe 3a fc 49 bd 00 00 00 00 00 fc ff df [ 5.703013][ T1] RSP: 0000:ffffc90000067810 EFLAGS: 00010246 [ 5.703013][ T1] RAX: 1ffff11004c3f408 RBX: dffffc0000000000 RCX: ffff88801daaddc0 [ 5.703013][ T1] RDX: ffff888025fd9e00 RSI: 0000000000000023 RDI: ffffffff9063bf50 [ 5.703013][ T1] RBP: 0000000000000023 R08: ffff888023a52233 R09: 1ffff1100474a446 [ 5.703013][ T1] R10: dffffc0000000000 R11: ffffed100474a447 R12: dffffc0000000000 [ 5.703013][ T1] R13: ffffffff9063bf50 R14: ffff8880261fa040 R15: ffff8880261fa030 [ 5.703013][ T1] ? debugfs_create_file_full+0x3f/0x60 [ 5.703013][ T1] drm_dev_register+0x7c/0xd80 [ 5.703013][ T1] vkms_create+0x40d/0x4f0 [ 5.703013][ T1] ? __pfx_vkms_init+0x10/0x10 [ 5.703013][ T1] vkms_init+0x57/0x80 [ 5.703013][ T1] do_one_initcall+0x250/0x870 [ 5.703013][ T1] ? __pfx_vkms_init+0x10/0x10 [ 5.703013][ T1] ? __pfx_do_one_initcall+0x10/0x10 [ 5.703013][ T1] ? __pfx___schedule+0x10/0x10 [ 5.703013][ T1] ? _raw_spin_unlock_irqrestore+0x30/0x80 [ 5.703013][ T1] ? irqentry_exit+0x218/0x8f0 [ 5.703013][ T1] ? lockdep_hardirqs_on+0x7a/0x110 [ 5.703013][ T1] ? irqentry_exit+0x218/0x8f0 [ 5.703013][ T1] ? trace_irq_disable+0x3b/0x140 [ 5.703013][ T1] ? strlen+0x2e/0x70 [ 5.703013][ T1] ? next_arg+0x4a0/0x5e0 [ 5.703013][ T1] ? parameq+0x14d/0x170 [ 5.703013][ T1] ? parse_args+0x9c3/0xad0 [ 5.703013][ T1] ? rcu_is_watching+0x15/0xb0 [ 5.703013][ T1] do_initcall_level+0x10a/0x1a0 [ 5.703013][ T1] ? kernel_init+0x22/0x1d0 [ 5.703013][ T1] do_initcalls+0x59/0xa0 [ 5.703013][ T1] kernel_init_freeable+0x29d/0x3e0 [ 5.703013][ T1] ? __pfx_kernel_init+0x10/0x10 [ 5.703013][ T1] kernel_init+0x22/0x1d0 [ 5.703013][ T1] ? __pfx_kernel_init+0x10/0x10 [ 5.703013][ T1] ret_from_fork+0x514/0xb70 [ 5.703013][ T1] ? __pfx_ret_from_fork+0x10/0x10 [ 5.703013][ T1] ? __switch_to+0xc89/0x1420 [ 5.703013][ T1] ? __pfx_kernel_init+0x10/0x10 [ 5.703013][ T1] ret_from_fork_asm+0x1a/0x30 [ 5.703013][ T1] [ 5.703013][ T1] Kernel Offset: disabled [ 5.703013][ T1] Rebooting in 86400 seconds..