can't ssh into the instance 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@10.128.1.167" "pwd"]: exit status 255 ssh: connect to host 10.128.1.167 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 c2da991b-c6b7-798b-b13c-b876d9f484fa 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 0x000f26c0: 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 21.1.8 (++20251221033036+2078da43e25a-1~exp1~20251221153213.50), Debian LLD 21.1.8) #0 SMP PREEMPT_RT 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 03/18/2026 [ 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 [ 0.000004][ T0] kvm-clock: using sched offset of 9899801692 cycles [ 0.000012][ T0] clocksource: kvm-clock: mask: 0xffffffffffffffff max_cycles: 0x1cd42e4dffb, max_idle_ns: 881590591483 ns [ 0.000033][ T0] tsc: Detected 2200.226 MHz processor [ 0.003956][ T0] last_pfn = 0x240000 max_arch_pfn = 0x400000000 [ 0.004008][ T0] MTRR map: 4 entries (3 fixed + 1 variable; max 19), built from 8 variable MTRRs [ 0.004020][ T0] x86/PAT: Configuration [0-7]: WB WC UC- UC WB WP UC- WT [ 0.004083][ T0] last_pfn = 0xbfffd max_arch_pfn = 0x400000000 [ 0.008562][ T0] found SMP MP-table at [mem 0x000f2980-0x000f298f] [ 0.008587][ T0] Using GB pages for direct mapping [ 0.012407][ T0] ACPI: Early table checksum verification disabled [ 0.012438][ T0] ACPI: RSDP 0x00000000000F2700 000014 (v00 Google) [ 0.012455][ T0] ACPI: RSDT 0x00000000BFFFFFB0 000038 (v01 Google GOOGRSDT 00000001 GOOG 00000001) [ 0.012477][ T0] ACPI: FACP 0x00000000BFFFF370 0000F4 (v02 Google GOOGFACP 00000001 GOOG 00000001) [ 0.012501][ T0] ACPI: DSDT 0x00000000BFFFD900 001A64 (v01 Google GOOGDSDT 00000001 GOOG 00000001) [ 0.012519][ T0] ACPI: FACS 0x00000000BFFFD8C0 000040 [ 0.012532][ T0] ACPI: FACS 0x00000000BFFFD8C0 000040 [ 0.012546][ T0] ACPI: SRAT 0x00000000BFFFFEA0 0000C8 (v03 Google GOOGSRAT 00000001 GOOG 00000001) [ 0.012564][ T0] ACPI: APIC 0x00000000BFFFFDF0 000076 (v05 Google GOOGAPIC 00000001 GOOG 00000001) [ 0.012582][ T0] ACPI: SSDT 0x00000000BFFFF470 000980 (v01 Google GOOGSSDT 00000001 GOOG 00000001) [ 0.012600][ T0] ACPI: WAET 0x00000000BFFFFE70 000028 (v01 Google GOOGWAET 00000001 GOOG 00000001) [ 0.012616][ T0] ACPI: Reserving FACP table memory at [mem 0xbffff370-0xbffff463] [ 0.012624][ T0] ACPI: Reserving DSDT table memory at [mem 0xbfffd900-0xbffff363] [ 0.012631][ T0] ACPI: Reserving FACS table memory at [mem 0xbfffd8c0-0xbfffd8ff] [ 0.012638][ T0] ACPI: Reserving FACS table memory at [mem 0xbfffd8c0-0xbfffd8ff] [ 0.012645][ T0] ACPI: Reserving SRAT table memory at [mem 0xbffffea0-0xbfffff67] [ 0.012652][ T0] ACPI: Reserving APIC table memory at [mem 0xbffffdf0-0xbffffe65] [ 0.012659][ T0] ACPI: Reserving SSDT table memory at [mem 0xbffff470-0xbffffdef] [ 0.012666][ T0] ACPI: Reserving WAET table memory at [mem 0xbffffe70-0xbffffe97] [ 0.012797][ T0] ACPI: SRAT: Node 0 PXM 0 [mem 0x00000000-0x0009ffff] [ 0.012807][ T0] ACPI: SRAT: Node 0 PXM 0 [mem 0x00100000-0xbfffffff] [ 0.012816][ T0] ACPI: SRAT: Node 0 PXM 0 [mem 0x100000000-0x23fffffff] [ 0.012827][ T0] NUMA: Node 0 [mem 0x00001000-0x0009ffff] + [mem 0x00100000-0xbfffffff] -> [mem 0x00001000-0xbfffffff] [ 0.012840][ T0] NUMA: Node 0 [mem 0x00001000-0xbfffffff] + [mem 0x100000000-0x23fffffff] -> [mem 0x00001000-0x23fffffff] [ 0.012863][ T0] Faking node 0 at [mem 0x0000000000001000-0x0000000140000fff] (5120MB) [ 0.012875][ T0] Faking node 1 at [mem 0x0000000140001000-0x000000023fffffff] (4095MB) [ 0.012958][ T0] NODE_DATA(0) allocated [mem 0x13fffb740-0x140000fff] [ 0.013838][ T0] NODE_DATA(1) allocated [mem 0x23fff7740-0x23fffcfff] [ 0.325449][ T0] KernelAddressSanitizer initialized (generic) [ 0.325957][ T0] ACPI: PM-Timer IO Port: 0xb008 [ 0.325990][ T0] ACPI: LAPIC_NMI (acpi_id[0xff] dfl dfl lint[0x1]) [ 0.326093][ T0] IOAPIC[0]: apic_id 0, version 17, address 0xfec00000, GSI 0-23 [ 0.326108][ T0] ACPI: INT_SRC_OVR (bus 0 bus_irq 5 global_irq 5 high level) [ 0.326117][ T0] ACPI: INT_SRC_OVR (bus 0 bus_irq 9 global_irq 9 high level) [ 0.326126][ T0] ACPI: INT_SRC_OVR (bus 0 bus_irq 10 global_irq 10 high level) [ 0.326134][ T0] ACPI: INT_SRC_OVR (bus 0 bus_irq 11 global_irq 11 high level) [ 0.326163][ T0] ACPI: Using ACPI (MADT) for SMP configuration information [ 0.326175][ T0] CPU topo: Max. logical packages: 1 [ 0.326180][ T0] CPU topo: Max. logical nodes: 1 [ 0.326184][ T0] CPU topo: Num. nodes per package: 1 [ 0.326193][ T0] CPU topo: Max. logical dies: 1 [ 0.326197][ T0] CPU topo: Max. dies per package: 1 [ 0.326210][ T0] CPU topo: Max. threads per core: 2 [ 0.326215][ T0] CPU topo: Num. cores per package: 1 [ 0.326219][ T0] CPU topo: Num. threads per package: 2 [ 0.326223][ T0] CPU topo: Allowing 2 present CPUs plus 0 hotplug CPUs [ 0.326388][ T0] PM: hibernation: Registered nosave memory: [mem 0x00000000-0x00000fff] [ 0.326398][ T0] PM: hibernation: Registered nosave memory: [mem 0x0009f000-0x000fffff] [ 0.326407][ T0] PM: hibernation: Registered nosave memory: [mem 0xbfffd000-0xffffffff] [ 0.326430][ T0] [gap 0xc0000000-0xfffbbfff] available for PCI devices [ 0.326437][ T0] Booting paravirtualized kernel on KVM [ 0.326448][ T0] clocksource: refined-jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604462750000 ns [ 0.457650][ T0] Zone ranges: [ 0.457658][ T0] DMA [mem 0x0000000000001000-0x0000000000ffffff] [ 0.457671][ T0] DMA32 [mem 0x0000000001000000-0x00000000ffffffff] [ 0.457680][ T0] Normal [mem 0x0000000100000000-0x000000023fffffff] [ 0.457688][ T0] Device empty [ 0.457693][ T0] Movable zone start for each node [ 0.457697][ T0] Early memory node ranges [ 0.457700][ T0] node 0: [mem 0x0000000000001000-0x000000000009efff] [ 0.457708][ T0] node 0: [mem 0x0000000000100000-0x00000000bfffcfff] [ 0.457716][ T0] node 0: [mem 0x0000000100000000-0x0000000140000fff] [ 0.457723][ T0] node 1: [mem 0x0000000140001000-0x000000023fffffff] [ 0.457732][ T0] Initmem setup node 0 [mem 0x0000000000001000-0x0000000140000fff] [ 0.457748][ T0] Initmem setup node 1 [mem 0x0000000140001000-0x000000023fffffff] [ 0.457795][ T0] On node 0, zone DMA: 1 pages in unavailable ranges [ 0.458071][ T0] On node 0, zone DMA: 97 pages in unavailable ranges [ 0.529922][ T0] On node 0, zone Normal: 3 pages in unavailable ranges [ 0.601937][ T0] setup_percpu: NR_CPUS:8 nr_cpumask_bits:2 nr_cpu_ids:2 nr_node_ids:2 [ 0.602669][ T0] percpu: Embedded 71 pages/cpu s253640 r8192 d28984 u1048576 [ 0.602841][ T0] kvm-guest: PV spinlocks enabled [ 0.602852][ T0] PV qspinlock hash table entries: 256 (order: 0, 4096 bytes, linear) [ 0.602872][ 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 watchdogserialport: Connected to syzkaller.us-central1-c.ci2-upstream-fs-test-job-0 port 1 (session ID: 9a875879066b85e3780af50ae89439e60a4d1c374ed1f84d969c0a25366bfdd8, active connections: 1). _thresh=55 workqueue.watchdog_thresh=140 sysctl.net.core.netdev_unregister_timeout_secs=140 dummy_hcd.num=32 max_loop=32 nbds_max=32 \ [ 0.602903][ T0] Kernel command line: comedi.comedi_num_legacy_minors=4 panic_on_warn=1 BOOT_IMAGE=/boot/bzImage root=/dev/sda1 console=ttyS0 [ 0.607488][ T0] Unknown kernel command line parameters "nbds_max=32", will be passed to user space. [ 0.607550][ T0] random: crng init done [ 0.607554][ T0] printk: log buffer data + meta data: 262144 + 917504 = 1179648 bytes [ 0.607755][ T0] software IO TLB: area num 2. [ 0.636236][ T0] Fallback order for Node 0: 0 1 [ 0.636257][ T0] Fallback order for Node 1: 1 0 [ 0.636271][ T0] Built 2 zonelists, mobility grouping on. Total pages: 2097051 [ 0.636279][ T0] Policy zone: Normal [ 0.636969][ T0] mem auto-init: stack:all(zero), heap alloc:on, heap free:off [ 0.636979][ T0] stackdepot: allocating hash table via alloc_large_system_hash [ 0.636990][ T0] stackdepot hash table entries: 1048576 (order: 12, 16777216 bytes, linear) [ 0.641741][ T0] stackdepot: allocating space for 8192 stack pools via memblock [ 1.243232][ T0] ********************************************************** [ 1.243243][ T0] ** NOTICE NOTICE NOTICE NOTICE NOTICE NOTICE NOTICE ** [ 1.243247][ T0] ** ** [ 1.243251][ T0] ** This system shows unhashed kernel memory addresses ** [ 1.243255][ T0] ** via the console, logs, and other interfaces. This ** [ 1.243259][ T0] ** might reduce the security of your system. ** [ 1.243263][ T0] ** ** [ 1.243267][ T0] ** If you see this message and you are not debugging ** [ 1.243271][ T0] ** the kernel, report this immediately to your system ** [ 1.243275][ T0] ** administrator! ** [ 1.243279][ T0] ** ** [ 1.243283][ T0] ** Use hash_pointers=always to force this mode off ** [ 1.243287][ T0] ** ** [ 1.243291][ T0] ** NOTICE NOTICE NOTICE NOTICE NOTICE NOTICE NOTICE ** [ 1.243295][ T0] ********************************************************** [ 1.246738][ T0] SLUB: HWalign=64, Order=0-3, MinObjects=0, CPUs=2, Nodes=2 [ 1.379184][ T0] allocated 167772160 bytes of page_ext [ 1.379223][ T0] Node 0, zone DMA: page owner found early allocated 0 pages [ 1.393751][ T0] Node 0, zone DMA32: page owner found early allocated 21211 pages [ 1.398767][ T0] Node 0, zone Normal: page owner found early allocated 40 pages [ 1.410290][ T0] Node 1, zone Normal: page owner found early allocated 19848 pages [ 1.410771][ T0] Kernel/User page tables isolation: enabled [ 1.413046][ T0] Dynamic Preempt: full [ 1.414474][ T0] Running RCU self tests [ 1.414479][ T0] Running RCU synchronous self tests [ 1.414484][ T0] rcu: Preemptible hierarchical RCU implementation. [ 1.414488][ T0] rcu: RCU lockdep checking is enabled. [ 1.414492][ T0] rcu: RCU restricting CPUs from NR_CPUS=8 to nr_cpu_ids=2. [ 1.414500][ T0] rcu: RCU callback double-/use-after-free debug is enabled. [ 1.414506][ T0] rcu: RCU_SOFTIRQ processing moved to rcuc kthreads. [ 1.414509][ T0] rcu: RCU debug extended QS entry/exit. [ 1.414513][ T0] No expedited grace period (rcu_normal_after_boot). [ 1.414517][ T0] Trampoline variant of Tasks RCU enabled. [ 1.414522][ T0] Tracing variant of Tasks RCU enabled. [ 1.414526][ T0] rcu: RCU calculated value of scheduler-enlistment delay is 10 jiffies. [ 1.414532][ T0] rcu: Adjusting geometry for rcu_fanout_leaf=16, nr_cpu_ids=2 [ 1.414725][ T0] Running RCU synchronous self tests [ 1.414759][ T0] RCU Tasks: Setting shift to 1 and lim to 1 rcu_task_cb_adjust=1 rcu_task_cpu_ids=2. [ 1.587561][ T0] NR_IRQS: 4352, nr_irqs: 440, preallocated irqs: 16 [ 1.588677][ T0] rcu: srcu_init: Setting srcu_struct sizes based on contention. [ 1.589477][ T0] kfence: initialized - using 2097152 bytes for 255 objects at 0xffff88823be00000-0xffff88823c000000 [ 1.591059][ T0] Console: colour VGA+ 80x25 [ 1.772962][ T0] printk: legacy console [ttyS0] enabled [ 1.772972][ T0] printk: legacy bootconsole [earlyser0] disabled [ 1.773049][ T0] Lock dependency validator: Copyright (c) 2006 Red Hat, Inc., Ingo Molnar [ 1.773054][ T0] ... MAX_LOCKDEP_SUBCLASSES: 8 [ 1.773059][ T0] ... MAX_LOCK_DEPTH: 48 [ 1.773063][ T0] ... MAX_LOCKDEP_KEYS: 8192 [ 1.773068][ T0] ... CLASSHASH_SIZE: 4096 [ 1.773072][ T0] ... MAX_LOCKDEP_ENTRIES: 1048576 [ 1.773076][ T0] ... MAX_LOCKDEP_CHAINS: 1048576 [ 1.773081][ T0] ... CHAINHASH_SIZE: 524288 [ 1.773085][ T0] memory used by lock dependency info: 106625 kB [ 1.773090][ T0] memory used for stack traces: 8320 kB [ 1.773094][ T0] per task-struct memory footprint: 1920 bytes [ 1.773425][ T0] ACPI: Core revision 20251212 [ 1.774840][ T0] APIC: Switch to symmetric I/O mode setup [ 1.775355][ T0] x2apic enabled [ 1.779800][ T0] APIC: Switched APIC routing to: physical x2apic [ 1.785966][ T0] ..TIMER: vector=0x30 apic1=0 pin1=0 apic2=-1 pin2=-1 [ 1.786371][ T0] clocksource: tsc-early: mask: 0xffffffffffffffff max_cycles: 0x1fb7086095e, max_idle_ns: 440795277026 ns [ 1.786429][ T0] Calibrating delay loop (skipped) preset value.. 4400.45 BogoMIPS (lpj=22002260) [ 1.787180][ T0] Last level iTLB entries: 4KB 64, 2MB 8, 4MB 8 [ 1.787186][ T0] Last level dTLB entries: 4KB 64, 2MB 32, 4MB 32, 1GB 4 [ 1.787222][ T0] mitigations: Enabled attack vectors: user_kernel, user_user, guest_host, guest_guest, SMT mitigations: auto [ 1.787241][ T0] Speculative Store Bypass: Mitigation: Speculative Store Bypass disabled via prctl [ 1.787247][ T0] Spectre V2 : Mitigation: IBRS [ 1.787251][ T0] RETBleed: Mitigation: IBRS [ 1.787255][ T0] ITS: Mitigation: Aligned branch/return thunks [ 1.787259][ T0] Spectre V2 : User space: Mitigation: STIBP via prctl [ 1.787263][ T0] MDS: Mitigation: Clear CPU buffers [ 1.787267][ T0] TAA: Mitigation: Clear CPU buffers [ 1.787271][ T0] MMIO Stale Data: Vulnerable: Clear CPU buffers attempted, no microcode [ 1.787276][ T0] Spectre V1 : Mitigation: usercopy/swapgs barriers and __user pointer sanitization [ 1.787284][ T0] Spectre V2 : Spectre v2 / SpectreRSB: Filling RSB on context switch and VMEXIT [ 1.787300][ T0] Spectre V2 : mitigation: Enabling conditional Indirect Branch Prediction Barrier [ 1.787339][ T0] active return thunk: its_return_thunk [ 1.787352][ T0] Spectre V2 : Spectre BHI mitigation: SW BHB clearing on syscall and VM exit [ 1.787406][ T0] x86/fpu: Supporting XSAVE feature 0x001: 'x87 floating point registers' [ 1.787412][ T0] x86/fpu: Supporting XSAVE feature 0x002: 'SSE registers' [ 1.787417][ T0] x86/fpu: Supporting XSAVE feature 0x004: 'AVX registers' [ 1.787423][ T0] x86/fpu: xstate_offset[2]: 576, xstate_sizes[2]: 256 [ 1.787431][ T0] x86/fpu: Enabled xstate features 0x7, context size is 832 bytes, using 'standard' format. [ 2.063513][ T0] Freeing SMP alternatives memory: 128K [ 2.063531][ T0] pid_max: default: 32768 minimum: 301 [ 2.065080][ T0] landlock: Up and running. [ 2.065085][ T0] Yama: becoming mindful. [ 2.065469][ T0] TOMOYO Linux initialized [ 2.066665][ T0] Smack: Initializing. [ 2.066669][ T0] Smack: Netfilter enabled. [ 2.066672][ T0] Smack: IPv6 Netfilter enabled. [ 2.069038][ T0] LSM support for eBPF active [ 2.075712][ T0] Dentry cache hash table entries: 1048576 (order: 11, 8388608 bytes, vmalloc hugepage) [ 2.078777][ T0] Inode-cache hash table entries: 524288 (order: 10, 4194304 bytes, vmalloc hugepage) [ 2.079162][ T0] Mount-cache hash table entries: 16384 (order: 5, 131072 bytes, vmalloc) [ 2.079319][ T0] Mountpoint-cache hash table entries: 16384 (order: 5, 131072 bytes, vmalloc) [ 2.081699][ T0] VFS: Finished mounting rootfs on nullfs [ 2.086185][ T0] Running RCU synchronous self tests [ 2.086194][ T0] Running RCU synchronous self tests [ 2.207453][ T1] smpboot: CPU0: Intel(R) Xeon(R) CPU @ 2.20GHz (family: 0x6, model: 0x4f, stepping: 0x0) [ 2.211906][ T1] Performance Events: unsupported CPU family 6 model 79 no PMU driver, software events only. [ 2.212031][ T1] signal: max sigframe size: 1776 [ 2.216483][ T1] rcu: Hierarchical SRCU implementation. [ 2.216489][ T1] rcu: Max phase no-delay instances is 1000. [ 2.236511][ T1] Timer migration: 1 hierarchy levels; 8 children per group; 0 crossnode level [ 2.344025][ T1] NMI watchdog: Perf NMI watchdog permanently disabled [ 2.345064][ T1] smp: Bringing up secondary CPUs ... [ 2.350830][ T1] smpboot: x86: Booting SMP configuration: [ 2.350837][ T1] .... node #0, CPUs: #1 [ 2.351239][ 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. [ 2.351239][ 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. [ 2.351239][ 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. [ 2.351239][ T1] smp: Brought up 2 nodes, 2 CPUs [ 2.351239][ T1] smpboot: Total of 2 processors activated (8800.90 BogoMIPS) [ 2.351239][ T1] Memory: 6476088K/8388204K available (166298K kernel code, 29473K rwdata, 39328K rodata, 25344K init, 121264K bss, 1724168K reserved, 0K cma-reserved) [ 2.361689][ T1] devtmpfs: initialized [ 2.367179][ T1] x86/mm: Memory block size: 128MB [ 2.439081][ T1] Running RCU synchronous self tests [ 2.439138][ T1] Running RCU synchronous self tests [ 2.439282][ T1] Running RCU Tasks wait API self tests [ 2.439282][ T1] Running RCU Tasks Trace wait API self tests [ 2.439923][ T1] clocksource: jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604462750000 ns [ 2.439923][ T1] posixtimers hash table entries: 1024 (order: 6, 139264 bytes, vmalloc) [ 2.439923][ T1] futex hash table entries: 256 (49152 bytes on 2 NUMA nodes, total 96 KiB, linear). [ 2.450879][ T1] PM: RTC time: 02:28:38, date: 2026-04-15 [ 2.461863][ T1] NET: Registered PF_NETLINK/PF_ROUTE protocol family [ 2.477131][ T1] audit: initializing netlink subsys (disabled) [ 2.477362][ T37] audit: type=2000 audit(1776220118.310:1): state=initialized audit_enabled=0 res=1 [ 2.480501][ T1] thermal_sys: Registered thermal governor 'step_wise' [ 2.480501][ T1] cpuidle: using governor menu [ 2.480501][ T1] NET: Registered PF_QIPCRTR protocol family [ 2.494038][ T10] Callback from call_rcu_tasks_trace() invoked. [ 2.490240][ T1] dca service started, version 1.12.1 [ 2.490240][ T1] PCI: Using configuration type 1 for base access [ 2.526659][ T1] HugeTLB: registered 1.00 GiB page size, pre-allocated 0 pages [ 2.526675][ T1] HugeTLB: 16380 KiB vmemmap can be freed for a 1.00 GiB page [ 2.526690][ T1] HugeTLB: registered 2.00 MiB page size, pre-allocated 0 pages [ 2.526700][ T1] HugeTLB: 28 KiB vmemmap can be freed for a 2.00 MiB page [ 2.544724][ T1] raid6: skipped pq benchmark and selected avx2x4 [ 2.544740][ T1] raid6: using avx2x2 recovery algorithm [ 2.552102][ T1] ACPI: Added _OSI(Module Device) [ 2.552116][ T1] ACPI: Added _OSI(Processor Device) [ 2.552126][ T1] ACPI: Added _OSI(Processor Aggregator Device) [ 2.791648][ T1] ACPI: 2 ACPI AML tables successfully acquired and loaded [ 2.835173][ T1] ACPI: \_SB_: platform _OSC: OS support mask [000e7eee] [ 2.865189][ T1] ACPI: Interpreter enabled [ 2.866184][ T1] ACPI: PM: (supports S0 S3 S4 S5) [ 2.866263][ T1] ACPI: Using IOAPIC for interrupt routing [ 2.870689][ T1] PCI: Using host bridge windows from ACPI; if necessary, use "pci=nocrs" and report a bug [ 2.870703][ T1] PCI: Ignoring E820 reservations for host bridge windows [ 2.881832][ T1] ACPI: Enabled 16 GPEs in block 00 to 0F [ 3.224501][ T1] ACPI: PCI Root Bridge [PCI0] (domain 0000 [bus 00-ff]) [ 3.224628][ T1] acpi PNP0A03:00: _OSC: OS supports [ASPM ClockPM Segments MSI HPX-Type3] [ 3.224649][ T1] acpi PNP0A03:00: _OSC: not requesting OS control; OS requires [ExtendedConfig ASPM ClockPM MSI] [ 3.225056][ T1] acpi PNP0A03:00: _OSC: platform retains control of PCIe features (AE_ERROR) [ 3.225827][ T1] acpi PNP0A03:00: fail to add MMCONFIG information, can't access extended configuration space under this bridge [ 3.266834][ T1] PCI host bridge to bus 0000:00 [ 3.266852][ T1] pci_bus 0000:00: Unknown NUMA node; performance will be reduced [ 3.267346][ T1] pci_bus 0000:00: root bus resource [io 0x0000-0x0cf7 window] [ 3.267386][ T1] pci_bus 0000:00: root bus resource [io 0x0d00-0xffff window] [ 3.267426][ T1] pci_bus 0000:00: root bus resource [mem 0x000a0000-0x000bffff window] [ 3.267464][ T1] pci_bus 0000:00: root bus resource [mem 0xc0000000-0xfebfefff window] [ 3.267508][ T1] pci_bus 0000:00: root bus resource [bus 00-ff] [ 3.268178][ T1] pci 0000:00:00.0: [8086:1237] type 00 class 0x060000 conventional PCI endpoint [ 3.276043][ T1] pci 0000:00:01.0: [8086:7110] type 00 class 0x060100 conventional PCI endpoint [ 3.307968][ T1] pci 0000:00:01.3: [8086:7113] type 00 class 0x068000 conventional PCI endpoint [ 3.313910][ T1] pci 0000:00:01.3: quirk: [io 0xb000-0xb03f] claimed by PIIX4 ACPI [ 3.326981][ T1] pci 0000:00:03.0: [1af4:1004] type 00 class 0x000000 conventional PCI endpoint [ 3.338284][ T1] pci 0000:00:03.0: BAR 0 [io 0xc000-0xc03f] [ 3.338322][ T1] pci 0000:00:03.0: BAR 1 [mem 0xfe800000-0xfe80007f] [ 3.351289][ T1] pci 0000:00:04.0: [1af4:1000] type 00 class 0x020000 conventional PCI endpoint [ 3.364473][ T1] pci 0000:00:04.0: BAR 0 [io 0xc040-0xc07f] [ 3.364514][ T1] pci 0000:00:04.0: BAR 1 [mem 0xfe801000-0xfe80107f] [ 3.377356][ T1] pci 0000:00:05.0: [1ae0:a002] type 00 class 0x030000 conventional PCI endpoint [ 3.388666][ T1] pci 0000:00:05.0: BAR 0 [mem 0xfe000000-0xfe7fffff] [ 3.389424][ T1] pci 0000:00:05.0: Video device with shadowed ROM at [mem 0x000c0000-0x000dffff] [ 3.403511][ T1] pci 0000:00:06.0: [1af4:1002] type 00 class 0x00ff00 conventional PCI endpoint [ 3.415615][ T1] pci 0000:00:06.0: BAR 0 [io 0xc080-0xc09f] [ 3.425750][ T1] pci 0000:00:07.0: [1af4:1005] type 00 class 0x00ff00 conventional PCI endpoint [ 3.438239][ T1] pci 0000:00:07.0: BAR 0 [io 0xc0a0-0xc0bf] [ 3.438281][ T1] pci 0000:00:07.0: BAR 1 [mem 0xfe802000-0xfe80203f] [ 3.504641][ T1] ACPI: PCI: Interrupt link LNKA configured for IRQ 10 [ 3.515702][ T1] ACPI: PCI: Interrupt link LNKB configured for IRQ 10 [ 3.527632][ T1] ACPI: PCI: Interrupt link LNKC configured for IRQ 11 [ 3.538935][ T1] ACPI: PCI: Interrupt link LNKD configured for IRQ 11 [ 3.543493][ T1] ACPI: PCI: Interrupt link LNKS configured for IRQ 9 [ 3.596620][ T1] iommu: Default domain type: Translated [ 3.596620][ T1] iommu: DMA domain TLB invalidation policy: lazy mode [ 3.606488][ T1] SCSI subsystem initialized [ 3.612402][ T1] ACPI: bus type USB registered [ 3.617291][ T1] usbcore: registered new interface driver usbfs [ 3.617291][ T1] usbcore: registered new interface driver hub [ 3.617291][ T1] usbcore: registered new device driver usb [ 3.623849][ T1] mc: Linux media interface: v0.10 [ 3.624339][ T1] videodev: Linux video capture interface: v2.00 [ 3.626296][ T1] pps_core: LinuxPPS API ver. 1 registered [ 3.626308][ T1] pps_core: Software ver. 5.3.6 - Copyright 2005-2007 Rodolfo Giometti [ 3.632577][ T1] PTP clock support registered [ 3.646892][ T1] EDAC MC: Ver: 3.0.0 [ 3.661730][ T1] Advanced Linux Sound Architecture Driver Initialized. [ 3.687877][ T1] Bluetooth: Core ver 2.22 [ 3.688210][ T1] NET: Registered PF_BLUETOOTH protocol family [ 3.688219][ T1] Bluetooth: HCI device and connection manager initialized [ 3.688345][ T1] Bluetooth: HCI socket layer initialized [ 3.688383][ T1] Bluetooth: L2CAP socket layer initialized [ 3.688562][ T1] Bluetooth: SCO socket layer initialized [ 3.688725][ T1] NET: Registered PF_ATMPVC protocol family [ 3.688736][ T1] NET: Registered PF_ATMSVC protocol family [ 3.689478][ T1] NetLabel: Initializing [ 3.689486][ T1] NetLabel: domain hash size = 128 [ 3.689494][ T1] NetLabel: protocols = UNLABELED CIPSOv4 CALIPSO [ 3.690311][ T1] NetLabel: unlabeled traffic allowed by default [ 3.695504][ T1] nfc: nfc_init: NFC Core ver 0.1 [ 3.696108][ T1] NET: Registered PF_NFC protocol family [ 3.696399][ T1] mctp: management component transport protocol core [ 3.715498][ T1] NET: Registered PF_MCTP protocol family [ 3.716018][ T1] PCI: Using ACPI for IRQ routing [ 3.716340][ T1] e820: register RAM buffer resource [mem 0x0009fc00-0x0009ffff] [ 3.721110][ T1] e820: register RAM buffer resource [mem 0xbfffd000-0xbfffffff] [ 3.722885][ T1] pci 0000:00:05.0: vgaarb: setting as boot VGA device [ 3.722902][ T1] pci 0000:00:05.0: vgaarb: bridge control possible [ 3.722915][ T1] pci 0000:00:05.0: vgaarb: VGA device added: decodes=io+mem,owns=io+mem,locks=none [ 3.722953][ T1] vgaarb: loaded [ 3.746399][ T1] clocksource: Switched to clocksource kvm-clock [ 3.749806][ T1] VFS: Disk quotas dquot_6.6.0 [ 3.750116][ T1] VFS: Dquot-cache hash table entries: 512 (order 0, 4096 bytes) [ 3.761498][ T1] netfs: FS-Cache loaded [ 3.765052][ T1] CacheFiles: Loaded [ 3.765982][ T1] TOMOYO: 2.6.0 [ 3.765987][ T1] Mandatory Access Control activated. [ 3.772437][ T1] pnp: PnP ACPI init [ 3.821390][ T1] pnp: PnP ACPI: found 6 devices [ 6.862901][ T35] Callback from call_rcu_tasks() invoked. [ 6.874947][ T1] clocksource: acpi_pm: mask: 0xffffff max_cycles: 0xffffff, max_idle_ns: 2085701024 ns [ 6.877466][ T1] NET: Registered PF_INET protocol family [ 6.884461][ T1] IP idents hash table entries: 131072 (order: 8, 1048576 bytes, vmalloc) [ 6.907699][ T1] tcp_listen_portaddr_hash hash table entries: 4096 (order: 8, 557056 bytes, vmalloc) [ 6.908797][ T1] Table-perturb hash table entries: 65536 (order: 6, 262144 bytes, vmalloc) [ 6.909848][ T1] TCP established hash table entries: 65536 (order: 7, 524288 bytes, vmalloc) [ 6.958905][ T1] TCP bind hash table entries: 65536 (order: 13, 17825792 bytes, vmalloc hugepage) [ 6.967182][ T1] TCP: Hash tables configured (established 65536 bind 65536) [ 6.986686][ T1] MPTCP token hash table entries: 8192 (order: 9, 1245184 bytes, vmalloc) [ 6.989581][ T1] UDP hash table entries: 4096 (order: 9, 1835008 bytes, vmalloc) [ 6.993028][ T1] UDP-Lite hash table entries: 4096 (order: 9, 1835008 bytes, vmalloc) [ 6.996363][ T1] NET: Registered PF_UNIX/PF_LOCAL protocol family syzkaller build log: go env (err=) AR='ar' CC='gcc' CGO_CFLAGS='-O2 -g' CGO_CPPFLAGS='' CGO_CXXFLAGS='-O2 -g' CGO_ENABLED='1' CGO_FFLAGS='-O2 -g' CGO_LDFLAGS='-O2 -g' CXX='g++' GCCGO='gccgo' GO111MODULE='auto' GOAMD64='v1' GOARCH='amd64' GOAUTH='netrc' GOBIN='' GOCACHE='/syzkaller/.cache/go-build' GOCACHEPROG='' GODEBUG='' GOENV='/syzkaller/.config/go/env' GOEXE='' GOEXPERIMENT='' GOFIPS140='off' GOFLAGS='' GOGCCFLAGS='-fPIC -m64 -pthread -Wl,--no-gc-sections -fmessage-length=0 -ffile-prefix-map=/tmp/go-build366925912=/tmp/go-build -gno-record-gcc-switches' GOHOSTARCH='amd64' GOHOSTOS='linux' GOINSECURE='' GOMOD='/syzkaller/jobs/linux/gopath/src/github.com/google/syzkaller/go.mod' GOMODCACHE='/syzkaller/jobs/linux/gopath/pkg/mod' GONOPROXY='' GONOSUMDB='' GOOS='linux' GOPATH='/syzkaller/jobs/linux/gopath' GOPRIVATE='' GOPROXY='https://proxy.golang.org,direct' GOROOT='/usr/local/go' GOSUMDB='sum.golang.org' GOTELEMETRY='local' GOTELEMETRYDIR='/syzkaller/.config/go/telemetry' GOTMPDIR='' GOTOOLCHAIN='auto' GOTOOLDIR='/usr/local/go/pkg/tool/linux_amd64' GOVCS='' GOVERSION='go1.26.0' GOWORK='' PKG_CONFIG='pkg-config' git status (err=) HEAD detached at 5b92003d577 nothing to commit, working tree clean tput: No value for $TERM and no -T specified tput: No value for $TERM and no -T specified Makefile:31: run command via tools/syz-env for best compatibility, see: Makefile:32: https://github.com/google/syzkaller/blob/master/docs/contributing.md#using-syz-env go list -f '{{.Stale}}' -ldflags="-s -w -X github.com/google/syzkaller/prog.GitRevision=5b92003d577daa0766edda7ed533d75e1ac545ff -X github.com/google/syzkaller/prog.gitRevisionDate=20260320-154836" ./sys/syz-sysgen | grep -q false || go install -ldflags="-s -w -X github.com/google/syzkaller/prog.GitRevision=5b92003d577daa0766edda7ed533d75e1ac545ff -X github.com/google/syzkaller/prog.gitRevisionDate=20260320-154836" ./sys/syz-sysgen make .descriptions tput: No value for $TERM and no -T specified tput: No value for $TERM and no -T specified Makefile:31: run command via tools/syz-env for best compatibility, see: Makefile:32: https://github.com/google/syzkaller/blob/master/docs/contributing.md#using-syz-env bin/syz-sysgen touch .descriptions GOOS=linux GOARCH=amd64 go build -ldflags="-s -w -X github.com/google/syzkaller/prog.GitRevision=5b92003d577daa0766edda7ed533d75e1ac545ff -X github.com/google/syzkaller/prog.gitRevisionDate=20260320-154836" -o ./bin/linux_amd64/syz-execprog github.com/google/syzkaller/tools/syz-execprog mkdir -p ./bin/linux_amd64 g++ -o ./bin/linux_amd64/syz-executor executor/executor.cc \ -m64 -O2 -pthread -Wall -Werror -Wparentheses -Wunused-const-variable -Wframe-larger-than=16384 -Wno-stringop-overflow -Wno-array-bounds -Wno-format-overflow -Wno-unused-but-set-variable -Wno-unused-command-line-argument -static-pie -std=c++17 -I. -Iexecutor/_include -DGOOS_linux=1 -DGOARCH_amd64=1 \ -DHOSTGOOS_linux=1 -DGIT_REVISION=\"5b92003d577daa0766edda7ed533d75e1ac545ff\" /usr/bin/ld: /tmp/ccdO1oWx.o: in function `Connection::Connect(char const*, char const*)': executor.cc:(.text._ZN10Connection7ConnectEPKcS1_[_ZN10Connection7ConnectEPKcS1_]+0x386): warning: Using 'gethostbyname' in statically linked applications requires at runtime the shared libraries from the glibc version used for linking ./tools/check-syzos.sh 2>/dev/null