failed to run ["ssh" "-p" "13975" "-F" "/dev/null" "-o" "UserKnownHostsFile=/dev/null" "-o" "IdentitiesOnly=yes" "-o" "BatchMode=yes" "-o" "StrictHostKeyChecking=no" "-o" "ConnectTimeout=10" "root@localhost" "pwd"]: exit status 255
Connection timed out during banner exchange
Connection to 127.0.0.1 port 13975 timed out
[ 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_DYNAMIC now
[ 0.000000][ T0] Command line: root=/dev/sda console=ttyS0 root=/dev/sda1
[ 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 0x0000000000100000-0x000000007ffdefff] System RAM
[ 0.000000][ T0] BIOS-e820: [mem 0x000000007ffdf000-0x000000007fffffff] device reserved
[ 0.000000][ T0] BIOS-e820: [gap 0x0000000080000000-0x00000000afffffff]
[ 0.000000][ T0] BIOS-e820: [mem 0x00000000b0000000-0x00000000bfffffff] device reserved
[ 0.000000][ T0] BIOS-e820: [gap 0x00000000c0000000-0x00000000fed1bfff]
[ 0.000000][ T0] BIOS-e820: [mem 0x00000000fed1c000-0x00000000fed1ffff] device reserved
[ 0.000000][ T0] BIOS-e820: [gap 0x00000000fed20000-0x00000000feffbfff]
[ 0.000000][ T0] BIOS-e820: [mem 0x00000000feffc000-0x00000000feffffff] device reserved
[ 0.000000][ T0] BIOS-e820: [gap 0x00000000ff000000-0x00000000fffbffff]
[ 0.000000][ T0] BIOS-e820: [mem 0x00000000fffc0000-0x00000000ffffffff] 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] NX (Execute Disable) protection: active
[ 0.000000][ T0] APIC: Static calls initialized
[ 0.000000][ T0] SMBIOS 2.8 present.
[ 0.000000][ T0] DMI: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
[ 0.000000][ T0] DMI: Memory slots populated: 1/1
[ 0.000000][ T0] Hypervisor detected: KVM
[ 0.000000][ T0] last_pfn = 0x7ffdf max_arch_pfn = 0x400000000
[ 0.000000][ T0] kvm-clock: Using msrs 4b564d01 and 4b564d00
[ 0.000009][ T0] kvm-clock: using sched offset of 2409031987 cycles
[ 0.003924][ T0] clocksource: kvm-clock: mask: 0xffffffffffffffff max_cycles: 0x1cd42e4dffb, max_idle_ns: 881590591483 ns
[ 0.016887][ T0] tsc: Detected 2800.264 MHz processor
[ 0.027992][ T0] last_pfn = 0x240000 max_arch_pfn = 0x400000000
[ 0.033134][ T0] MTRR map: 4 entries (3 fixed + 1 variable; max 19), built from 8 variable MTRRs
[ 0.039596][ T0] x86/PAT: Configuration [0-7]: WB WC UC- UC WB WP UC- WT
[ 0.045509][ T0] last_pfn = 0x7ffdf max_arch_pfn = 0x400000000
[ 0.058580][ T0] found SMP MP-table at [mem 0x000f5b80-0x000f5b8f]
[ 0.068224][ T0] ACPI: Early table checksum verification disabled
[ 0.072899][ T0] ACPI: RSDP 0x00000000000F5960 000014 (v00 BOCHS )
[ 0.077671][ T0] ACPI: RSDT 0x000000007FFE234D 000038 (v01 BOCHS BXPC 00000001 BXPC 00000001)
[ 0.084311][ T0] ACPI: FACP 0x000000007FFE213D 0000F4 (v03 BOCHS BXPC 00000001 BXPC 00000001)
[ 0.090923][ T0] ACPI: DSDT 0x000000007FFE0040 0020FD (v01 BOCHS BXPC 00000001 BXPC 00000001)
[ 0.097576][ T0] ACPI: FACS 0x000000007FFE0000 000040
[ 0.101589][ T0] ACPI: APIC 0x000000007FFE2231 000080 (v01 BOCHS BXPC 00000001 BXPC 00000001)
[ 0.108213][ T0] ACPI: HPET 0x000000007FFE22B1 000038 (v01 BOCHS BXPC 00000001 BXPC 00000001)
[ 0.114572][ T0] ACPI: MCFG 0x000000007FFE22E9 00003C (v01 BOCHS BXPC 00000001 BXPC 00000001)
[ 0.121424][ T0] ACPI: WAET 0x000000007FFE2325 000028 (v01 BOCHS BXPC 00000001 BXPC 00000001)
[ 0.127724][ T0] ACPI: Reserving FACP table memory at [mem 0x7ffe213d-0x7ffe2230]
[ 0.133563][ T0] ACPI: Reserving DSDT table memory at [mem 0x7ffe0040-0x7ffe213c]
[ 0.139271][ T0] ACPI: Reserving FACS table memory at [mem 0x7ffe0000-0x7ffe003f]
[ 0.144594][ T0] ACPI: Reserving APIC table memory at [mem 0x7ffe2231-0x7ffe22b0]
[ 0.149858][ T0] ACPI: Reserving HPET table memory at [mem 0x7ffe22b1-0x7ffe22e8]
[ 0.155347][ T0] ACPI: Reserving MCFG table memory at [mem 0x7ffe22e9-0x7ffe2324]
[ 0.160783][ T0] ACPI: Reserving WAET table memory at [mem 0x7ffe2325-0x7ffe234c]
[ 0.167984][ T0] No NUMA configuration found
[ 0.171385][ T0] Faking a node at [mem 0x0000000000000000-0x000000023fffffff]
[ 0.176126][ T0] Faking node 0 at [mem 0x0000000000001000-0x0000000160000fff] (5632MB)
[ 0.182006][ T0] Faking node 1 at [mem 0x0000000160001000-0x000000023fffffff] (3583MB)
[ 0.187466][ T0] NODE_DATA(0) allocated [mem 0x15fffb100-0x160000fff]
[ 0.193689][ T0] NODE_DATA(1) allocated [mem 0x23fff7100-0x23fffcfff]
[ 0.479009][ T0] KernelAddressSanitizer initialized (generic)
[ 0.485716][ T0] ACPI: PM-Timer IO Port: 0x608
[ 0.488703][ T0] ACPI: LAPIC_NMI (acpi_id[0xff] dfl dfl lint[0x1])
[ 0.493459][ T0] IOAPIC[0]: apic_id 0, version 17, address 0xfec00000, GSI 0-23
[ 0.498139][ T0] ACPI: INT_SRC_OVR (bus 0 bus_irq 0 global_irq 2 dfl dfl)
[ 0.502580][ T0] ACPI: INT_SRC_OVR (bus 0 bus_irq 5 global_irq 5 high level)
[ 0.507549][ T0] ACPI: INT_SRC_OVR (bus 0 bus_irq 9 global_irq 9 high level)
[ 0.513113][ T0] ACPI: INT_SRC_OVR (bus 0 bus_irq 10 global_irq 10 high level)
[ 0.519274][ T0] ACPI: INT_SRC_OVR (bus 0 bus_irq 11 global_irq 11 high level)
[ 0.525169][ T0] ACPI: Using ACPI (MADT) for SMP configuration information
[ 0.530590][ T0] ACPI: HPET id: 0x8086a201 base: 0xfed00000
[ 0.535034][ T0] CPU topo: Max. logical packages: 2
[ 0.539117][ T0] CPU topo: Max. logical nodes: 1
[ 0.543053][ T0] CPU topo: Num. nodes per package: 1
[ 0.546140][ T0] CPU topo: Max. logical dies: 2
[ 0.550007][ T0] CPU topo: Max. dies per package: 1
[ 0.553824][ T0] CPU topo: Max. threads per core: 1
[ 0.557158][ T0] CPU topo: Num. cores per package: 1
[ 0.561249][ T0] CPU topo: Num. threads per package: 1
[ 0.565392][ T0] CPU topo: Allowing 2 present CPUs plus 0 hotplug CPUs
[ 0.570643][ T0] kvm-guest: APIC: eoi() replaced with kvm_guest_apic_eoi_write()
[ 0.576450][ T0] PM: hibernation: Registered nosave memory: [mem 0x00000000-0x00000fff]
[ 0.582530][ T0] PM: hibernation: Registered nosave memory: [mem 0x0009f000-0x000fffff]
[ 0.587682][ T0] PM: hibernation: Registered nosave memory: [mem 0x7ffdf000-0xffffffff]
[ 0.594401][ T0] [gap 0xc0000000-0xfed1bfff] available for PCI devices
[ 0.599626][ T0] Booting paravirtualized kernel on KVM
[ 0.603620][ T0] clocksource: refined-jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604462750000 ns
[ 0.752267][ T0] Zone ranges:
[ 0.754631][ T0] DMA [mem 0x0000000000001000-0x0000000000ffffff]
[ 0.759791][ T0] DMA32 [mem 0x0000000001000000-0x00000000ffffffff]
[ 0.764852][ T0] Normal [mem 0x0000000100000000-0x000000023fffffff]
[ 0.769875][ T0] Device empty
[ 0.772471][ T0] Movable zone start for each node
[ 0.776038][ T0] Early memory node ranges
[ 0.779146][ T0] node 0: [mem 0x0000000000001000-0x000000000009efff]
[ 0.784239][ T0] node 0: [mem 0x0000000000100000-0x000000007ffdefff]
[ 0.789538][ T0] node 0: [mem 0x0000000100000000-0x0000000160000fff]
[ 0.794719][ T0] node 1: [mem 0x0000000160001000-0x000000023fffffff]
[ 0.799770][ T0] Initmem setup node 0 [mem 0x0000000000001000-0x0000000160000fff]
[ 0.805443][ T0] Initmem setup node 1 [mem 0x0000000160001000-0x000000023fffffff]
[ 0.811175][ T0] On node 0, zone DMA: 1 pages in unavailable ranges
[ 0.816316][ T0] On node 0, zone DMA: 97 pages in unavailable ranges
[ 0.905999][ T0] On node 0, zone Normal: 33 pages in unavailable ranges
[ 0.996989][ T0] setup_percpu: NR_CPUS:8 nr_cpumask_bits:2 nr_cpu_ids:2 nr_node_ids:2
[ 1.004797][ T0] percpu: Embedded 71 pages/cpu s250120 r8192 d32504 u2097152
[ 1.010452][ T0] kvm-guest: PV spinlocks disabled, no host support
[ 1.015163][ 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 \
[ 1.080357][ T0] Kernel command line: comedi.comedi_num_legacy_minors=4 panic_on_warn=1 root=/dev/sda console=ttyS0 root=/dev/sda1
[ 1.095617][ T0] Unknown kernel command line parameters "nbds_max=32", will be passed to user space.
[ 1.102701][ T0] printk: log buffer data + meta data: 262144 + 917504 = 1179648 bytes
[ 1.109047][ T0] software IO TLB: area num 2.
[ 1.149962][ T0] Fallback order for Node 0: 0 1
[ 1.149988][ T0] Fallback order for Node 1: 1 0
[ 1.150005][ T0] Built 2 zonelists, mobility grouping on. Total pages: 1834877
[ 1.160424][ T0] Policy zone: Normal
[ 1.163620][ T0] mem auto-init: stack:all(zero), heap alloc:on, heap free:off
[ 1.168147][ T0] stackdepot: allocating hash table via alloc_large_system_hash
[ 1.172617][ T0] stackdepot hash table entries: 1048576 (order: 12, 16777216 bytes, linear)
[ 1.184675][ T0] stackdepot: allocating space for 8192 stack pools via memblock
[ 1.889080][ T0] ------------[ cut here ]------------
[ 1.892236][ T0] preempt_dynamic_mode == preempt_dynamic_undefined
[ 1.892248][ T0] WARNING: kernel/sched/core.c:7743 at preempt_model_full+0x1e/0x30, CPU#0: swapper/0
[ 1.901520][ T0] Modules linked in:
[ 1.903735][ T0] CPU: 0 UID: 0 PID: 0 Comm: swapper Not tainted syzkaller #0 PREEMPT(undef)
[ 1.908774][ T0] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
[ 1.914592][ T0] RIP: 0010:preempt_model_full+0x1e/0x30
[ 1.917823][ T0] Code: 90 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa 83 3d 35 d9 cb 0c ff 74 10 83 3d 2c d9 cb 0c 02 0f 94 c0 2e e9 93 fa 19 0a 90 <0f> 0b 90 eb ea 66 66 66 66 2e 0f 1f 84 00 00 00 00 00 90 90 90 90
[ 1.929177][ T0] RSP: 0000:ffffffff8e407a78 EFLAGS: 00010046
[ 1.932671][ T0] RAX: 1ffffffff1c359d9 RBX: 0000000000000001 RCX: 0000000000000000
[ 1.937231][ T0] RDX: 0000000000000000 RSI: 0000000000000001 RDI: ffffea0004000000
[ 1.941845][ T0] RBP: 0000000000040100 R08: ffffffff8221aafb R09: 0000000000000000
[ 1.946450][ T0] R10: ffffed1020000000 R11: ffffed1024206961 R12: 0000000000000001
[ 1.951099][ T0] R13: 0000000000000001 R14: ffff888100000000 R15: dffffc0000000000
[ 1.955797][ T0] FS: 0000000000000000(0000) GS:ffff88818de62000(0000) knlGS:0000000000000000
[ 1.961120][ T0] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 1.965018][ T0] CR2: ffff88823ffff000 CR3: 000000000e54c000 CR4: 00000000000000b0
[ 1.969692][ T0] Call Trace:
[ 1.971677][ T0]
[ 1.973303][ T0] kernel_init_pages+0x6d/0xe0
[ 1.976050][ T0] post_alloc_hook+0xae/0x1e0
[ 1.978776][ T0] get_page_from_freelist+0x24ba/0x2540
[ 1.981969][ T0] ? register_lock_class+0x31/0x2e0
[ 1.984951][ T0] ? __lock_acquire+0x6b5/0x2cf0
[ 1.987823][ T0] __alloc_frozen_pages_noprof+0x18d/0x380
[ 1.991135][ T0] ? __pfx___alloc_frozen_pages_noprof+0x10/0x10
[ 1.994774][ T0] ? __pfx_policy_nodemask+0x10/0x10
[ 1.997801][ T0] alloc_pages_mpol+0x235/0x490
[ 2.000650][ T0] alloc_pages_noprof+0xac/0x2a0
[ 2.003459][ T0] __pud_alloc+0x3a/0x460
[ 2.006022][ T0] ? register_page_bootmem_info_section+0x174/0x190
[ 2.009923][ T0] preallocate_vmalloc_pages+0x386/0x3d0
[ 2.013191][ T0] mm_core_init+0x79/0xb0
[ 2.015715][ T0] start_kernel+0x15a/0x3d0
[ 2.018306][ T0] x86_64_start_reservations+0x24/0x30
[ 2.021454][ T0] x86_64_start_kernel+0x143/0x1c0
[ 2.024512][ T0] common_startup_64+0x13e/0x147
[ 2.027466][ T0]
[ 2.029163][ T0] Kernel panic - not syncing: kernel: panic_on_warn set ...
[ 2.033337][ T0] CPU: 0 UID: 0 PID: 0 Comm: swapper Not tainted syzkaller #0 PREEMPT(undef)
[ 2.038398][ T0] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
[ 2.044282][ T0] Call Trace:
[ 2.046175][ T0]
[ 2.047828][ T0] vpanic+0x56c/0xa60
[ 2.050077][ T0] ? __pfx__printk+0x10/0x10
[ 2.052726][ T0] ? __pfx_vpanic+0x10/0x10
[ 2.055304][ T0] ? is_bpf_text_address+0x292/0x2b0
[ 2.058345][ T0] ? is_bpf_text_address+0x26/0x2b0
[ 2.061342][ T0] panic+0xc5/0xd0
[ 2.063521][ T0] ? __pfx_panic+0x10/0x10
[ 2.066084][ T0] ? common_startup_64+0x13e/0x147
[ 2.069020][ T0] __warn+0x315/0x4f0
[ 2.071324][ T0] ? preempt_model_full+0x1e/0x30
[ 2.074231][ T0] ? preempt_model_full+0x1e/0x30
[ 2.077111][ T0] __report_bug+0x29a/0x540
[ 2.079654][ T0] ? bad_range+0x8b/0x2c0
[ 2.082107][ T0] ? preempt_model_full+0x1e/0x30
[ 2.084980][ T0] ? __pfx___report_bug+0x10/0x10
[ 2.087847][ T0] ? lockdep_unlock+0x5d/0xd0
[ 2.090499][ T0] ? __lock_acquire+0x146e/0x2cf0
[ 2.093367][ T0] ? __native_queued_spin_unlock+0xd/0x50
[ 2.096651][ T0] ? preempt_model_full+0x1e/0x30
[ 2.099502][ T0] report_bug+0x16a/0x220
[ 2.101992][ T0] ? preempt_model_full+0x1e/0x30
[ 2.104846][ T0] ? preempt_model_full+0x20/0x30
[ 2.107686][ T0] handle_bug+0x9c/0x200
[ 2.110023][ T0] exc_invalid_op+0x1a/0x50
[ 2.112598][ T0] asm_exc_invalid_op+0x1a/0x20
[ 2.115373][ T0] RIP: 0010:preempt_model_full+0x1e/0x30
[ 2.118534][ T0] Code: 90 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa 83 3d 35 d9 cb 0c ff 74 10 83 3d 2c d9 cb 0c 02 0f 94 c0 2e e9 93 fa 19 0a 90 <0f> 0b 90 eb ea 66 66 66 66 2e 0f 1f 84 00 00 00 00 00 90 90 90 90
[ 2.129979][ T0] RSP: 0000:ffffffff8e407a78 EFLAGS: 00010046
[ 2.133587][ T0] RAX: 1ffffffff1c359d9 RBX: 0000000000000001 RCX: 0000000000000000
[ 2.138448][ T0] RDX: 0000000000000000 RSI: 0000000000000001 RDI: ffffea0004000000
[ 2.143149][ T0] RBP: 0000000000040100 R08: ffffffff8221aafb R09: 0000000000000000
[ 2.147754][ T0] R10: ffffed1020000000 R11: ffffed1024206961 R12: 0000000000000001
[ 2.152300][ T0] R13: 0000000000000001 R14: ffff888100000000 R15: dffffc0000000000
[ 2.156926][ T0] ? bad_range+0x8b/0x2c0
[ 2.159409][ T0] kernel_init_pages+0x6d/0xe0
[ 2.162175][ T0] post_alloc_hook+0xae/0x1e0
[ 2.164855][ T0] get_page_from_freelist+0x24ba/0x2540
[ 2.168043][ T0] ? register_lock_class+0x31/0x2e0
[ 2.170971][ T0] ? __lock_acquire+0x6b5/0x2cf0
[ 2.173819][ T0] __alloc_frozen_pages_noprof+0x18d/0x380
[ 2.177122][ T0] ? __pfx___alloc_frozen_pages_noprof+0x10/0x10
[ 2.180904][ T0] ? __pfx_policy_nodemask+0x10/0x10
[ 2.184036][ T0] alloc_pages_mpol+0x235/0x490
[ 2.186996][ T0] alloc_pages_noprof+0xac/0x2a0
[ 2.190060][ T0] __pud_alloc+0x3a/0x460
[ 2.192714][ T0] ? register_page_bootmem_info_section+0x174/0x190
[ 2.196567][ T0] preallocate_vmalloc_pages+0x386/0x3d0
[ 2.199800][ T0] mm_core_init+0x79/0xb0
[ 2.202272][ T0] start_kernel+0x15a/0x3d0
[ 2.204902][ T0] x86_64_start_reservations+0x24/0x30
[ 2.208088][ T0] x86_64_start_kernel+0x143/0x1c0
[ 2.211086][ T0] common_startup_64+0x13e/0x147
[ 2.213915][ T0]
[ 2.215936][ T0] Rebooting in 86400 seconds..