WARNING in kfence_protect
ACPI: PM-Timer IO Port: 0xb008
ACPI: LAPIC_NMI (acpi_id[0xff] dfl dfl lint[0x1])
IOAPIC[0]: apic_id 0, version 17, address 0xfec00000, GSI 0-23
ACPI: INT_SRC_OVR (bus 0 bus_irq 5 global_irq 5 high level)
ACPI: INT_SRC_OVR (bus 0 bus_irq 9 global_irq 9 high level)
ACPI: INT_SRC_OVR (bus 0 bus_irq 10 global_irq 10 high level)
ACPI: INT_SRC_OVR (bus 0 bus_irq 11 global_irq 11 high level)
ACPI: Using ACPI (MADT) for SMP configuration information
smpboot: Allowing 2 CPUs, 0 hotplug CPUs
PM: hibernation: Registered nosave memory: [mem 0x00000000-0x00000fff]
PM: hibernation: Registered nosave memory: [mem 0x0009f000-0x0009ffff]
PM: hibernation: Registered nosave memory: [mem 0x000a0000-0x000effff]
PM: hibernation: Registered nosave memory: [mem 0x000f0000-0x000fffff]
PM: hibernation: Registered nosave memory: [mem 0xbfffd000-0xbfffffff]
PM: hibernation: Registered nosave memory: [mem 0xc0000000-0xfffbbfff]
PM: hibernation: Registered nosave memory: [mem 0xfffbc000-0xffffffff]
[mem 0xc0000000-0xfffbbfff] available for PCI devices
Booting paravirtualized kernel on KVM
clocksource: refined-jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604462750000 ns
setup_percpu: NR_CPUS:8 nr_cpumask_bits:2 nr_cpu_ids:2 nr_node_ids:2
percpu: Embedded 70 pages/cpu s248968 r8192 d29560 u1048576
kvm-guest: PV spinlocks enabled
PV qspinlock hash table entries: 256 (order: 0, 4096 bytes, linear)
Fallback order for Node 0: 0 1
Fallback order for Node 1: 1 0
Built 2 zonelists, mobility grouping on. Total pages: 2064125
Policy zone: Normal
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 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=16 vivid.multiplanar=1,2,1,2,1,2,1,2,1,2,1,2,1,2,1,2 netrom.nr_ndevs=16 rose.rose_ndevs=16 smp.csd_lock_timeout=100000 watchdog_thresh=55 workqueue.watchdog_thresh=140 sysctl.net.core.netdev_unregister_timeout_secs=140 dummy_hcd.num=8 panic_on_warn=1 BOOT_IMAGE=/boot/bzImage root=/dev/sda1 console=ttyS0
Unknown kernel command line parameters "spec_store_bypass_disable=prctl BOOT_IMAGE=/boot/bzImage", will be passed to user space.
random: crng init done
mem auto-init: stack:off, heap alloc:on, heap free:off
stackdepot hash table entries: 1048576 (order: 11, 8388608 bytes, linear)
software IO TLB: area num 2.
Memory: 6816860K/8388204K available (151552K kernel code, 36308K rwdata, 31528K rodata, 2900K init, 33472K bss, 1571088K reserved, 0K cma-reserved)
SLUB: HWalign=64, Order=0-3, MinObjects=0, CPUs=2, Nodes=2
Dynamic Preempt: full
Running RCU self tests
rcu: Preemptible hierarchical RCU implementation.
rcu: RCU lockdep checking is enabled.
rcu: RCU restricting CPUs from NR_CPUS=8 to nr_cpu_ids=2.
rcu: RCU callback double-/use-after-free debug is enabled.
rcu: RCU debug extended QS entry/exit.
All grace periods are expedited (rcu_expedited).
Trampoline variant of Tasks RCU enabled.
Tracing variant of Tasks RCU enabled.
rcu: RCU calculated value of scheduler-enlistment delay is 10 jiffies.
rcu: Adjusting geometry for rcu_fanout_leaf=16, nr_cpu_ids=2
NR_IRQS: 4352, nr_irqs: 440, preallocated irqs: 16
rcu: srcu_init: Setting srcu_struct sizes based on contention.
------------[ cut here ]------------
WARNING: CPU: 0 PID: 0 at arch/x86/include/asm/kfence.h:46 kfence_protect_page arch/x86/include/asm/kfence.h:46 [inline]
WARNING: CPU: 0 PID: 0 at arch/x86/include/asm/kfence.h:46 kfence_protect+0x9e/0x190 mm/kfence/core.c:234
Modules linked in:
CPU: 0 PID: 0 Comm: swapper/0 Not tainted 6.1.0-rc5-next-20221118-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022
RIP: 0010:kfence_protect_page arch/x86/include/asm/kfence.h:46 [inline]
RIP: 0010:kfence_protect+0x9e/0x190 mm/kfence/core.c:234
Code: 48 85 c0 74 20 48 89 c3 e8 8f 3f b2 ff 44 8b 74 24 20 bf 01 00 00 00 44 89 f6 e8 2d 3c b2 ff 41 83 fe 01 74 55 e8 72 3f b2 ff <0f> 0b 0f 0b c6 05 00 d0 a6 0c 00 45 31 ed c6 05 f5 cf a6 0c 01 e8
RSP: 0000:ffffffff8c407da8 EFLAGS: 00010093
RAX: 0000000000000000 RBX: ffff888012001040 RCX: 0000000000000000
RDX: ffffffff8c4bc980 RSI: ffffffff81ce6aee RDI: 0000000000000005
RBP: ffff88823bc00000 R08: 0000000000000005 R09: 0000000000000001
R10: 0000000000000003 R11: 0000000000000000 R12: 1ffffffff1880fb5
R13: dffffc0000000000 R14: 0000000000000003 R15: ffff88823bc00000
FS: 0000000000000000(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: ffff88823ffff000 CR3: 000000000c48e000 CR4: 00000000000406b0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
kfence_init_pool+0x387/0x620 mm/kfence/core.c:582
kfence_init_pool_early mm/kfence/core.c:615 [inline]
kfence_init+0x56/0x2db mm/kfence/core.c:852
start_kernel+0x26e/0x470 init/main.c:1059
secondary_startup_64_no_verify+0xce/0xdb
failed to run ["ssh" "-p" "22" "-F" "/dev/null" "-o" "UserKnownHostsFile=/dev/null" "-o" "BatchMode=yes" "-o" "IdentitiesOnly=yes" "-o" "StrictHostKeyChecking=no" "-o" "ConnectTimeout=10" "root@10.128.0.119" "pwd"]: exit status 255
ssh: connect to host 10.128.0.119 port 22: Connection timed out
Pseudo-terminal will not be allocated because stdin is not a terminal.
Warning: Permanently added '[ssh-serialport.googleapis.com]:9600,[216.239.38.127]:9600' (RSA) to the list of known hosts.
serialport: Connected to syzkaller.us-central1-c.ci-upstream-linux-next-kasan-gce-root-test-job-test-job-2 port 1 (session ID: d71f1a8407948726fdd524bc21c7ddfa06167a97ba00f82dffa1f8564a95b08d, active connections: 1).
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 5fafaa8f-8474-0792-0122-c42702b244e2
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 0x000f2450: 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 6.1.0-rc5-next-20221118-syzkaller (syzkaller@syzkaller) (gcc (Debian 10.2.1-6) 10.2.1 20210110, GNU ld (GNU Binutils for Debian) 2.35.2) #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/fpu: Supporting XSAVE feature 0x001: 'x87 floating point registers'
[ 0.000000][ T0] x86/fpu: Supporting XSAVE feature 0x002: 'SSE registers'
[ 0.000000][ T0] x86/fpu: Supporting XSAVE feature 0x004: 'AVX registers'
[ 0.000000][ T0] x86/fpu: xstate_offset[2]: 576, xstate_sizes[2]: 256
[ 0.000000][ T0] x86/fpu: Enabled xstate features 0x7, context size is 832 bytes, using 'standard' format.
[ 0.000000][ T0] signal: max sigframe size: 1776
[ 0.000000][ T0] BIOS-provided physical RAM map:
[ 0.000000][ T0] BIOS-e820: [mem 0x0000000000000000-0x000000000009fbff] usable
[ 0.000000][ T0] BIOS-e820: [mem 0x000000000009fc00-0x000000000009ffff] reserved
[ 0.000000][ T0] BIOS-e820: [mem 0x00000000000f0000-0x00000000000fffff] reserved
[ 0.000000][ T0] BIOS-e820: [mem 0x0000000000100000-0x00000000bfffcfff] usable
[ 0.000000][ T0] BIOS-e820: [mem 0x00000000bfffd000-0x00000000bfffffff] reserved
[ 0.000000][ T0] BIOS-e820: [mem 0x00000000fffbc000-0x00000000ffffffff] reserved
[ 0.000000][ T0] BIOS-e820: [mem 0x0000000100000000-0x000000023fffffff] usable
[ 0.000000][ T0] printk: bootconsole [earlyser0] enabled
[ 0.000000][ T0] ERROR: earlyprintk= earlyser already used
[ 0.000000][ T0] ERROR: earlyprintk= earlyser already used
[ 0.000000][ T0] **********************************************************
[ 0.000000][ T0] ** NOTICE NOTICE NOTICE NOTICE NOTICE NOTICE NOTICE **
[ 0.000000][ T0] ** **
[ 0.000000][ T0] ** This system shows unhashed kernel memory addresses **
[ 0.000000][ T0] ** via the console, logs, and other interfaces. This **
[ 0.000000][ T0] ** might reduce the security of your system. **
[ 0.000000][ T0] ** **
[ 0.000000][ T0] ** If you see this message and you are not debugging **
[ 0.000000][ T0] ** the kernel, report this immediately to your system **
[ 0.000000][ T0] ** administrator! **
[ 0.000000][ T0] ** **
[ 0.000000][ T0] ** NOTICE NOTICE NOTICE NOTICE NOTICE NOTICE NOTICE **
[ 0.000000][ T0] **********************************************************
[ 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] SMBIOS 2.4 present.
[ 0.000000][ T0] DMI: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022
[ 0.000000][ T0] Hypervisor detected: KVM
[ 0.000000][ T0] kvm-clock: Using msrs 4b564d01 and 4b564d00
[ 0.000007][ T0] kvm-clock: using sched offset of 3895505356 cycles
[ 0.001160][ T0] clocksource: kvm-clock: mask: 0xffffffffffffffff max_cycles: 0x1cd42e4dffb, max_idle_ns: 881590591483 ns
[ 0.003570][ T0] tsc: Detected 2199.998 MHz processor
[ 0.008113][ T0] last_pfn = 0x240000 max_arch_pfn = 0x400000000
[ 0.009371][ T0] x86/PAT: Configuration [0-7]: WB WC UC- UC WB WP UC- WT
[ 0.010449][ T0] last_pfn = 0xbfffd max_arch_pfn = 0x400000000
[ 0.015385][ T0] found SMP MP-table at [mem 0x000f2710-0x000f271f]
[ 0.016503][ T0] Using GB pages for direct mapping
[ 0.018695][ T0] ACPI: Early table checksum verification disabled
[ 0.019586][ T0] ACPI: RSDP 0x00000000000F2490 000014 (v00 Google)
[ 0.020500][ T0] ACPI: RSDT 0x00000000BFFFFFA0 000038 (v01 Google GOOGRSDT 00000001 GOOG 00000001)
[ 0.021822][ T0] ACPI: FACP 0x00000000BFFFF330 0000F4 (v02 Google GOOGFACP 00000001 GOOG 00000001)
[ 0.023094][ T0] ACPI: DSDT 0x00000000BFFFD8C0 001A64 (v01 Google GOOGDSDT 00000001 GOOG 00000001)
[ 0.024471][ T0] ACPI: FACS 0x00000000BFFFD880 000040
[ 0.025309][ T0] ACPI: FACS 0x00000000BFFFD880 000040
[ 0.026211][ T0] ACPI: SRAT 0x00000000BFFFFE60 0000C8 (v03 Google GOOGSRAT 00000001 GOOG 00000001)
[ 0.027518][ T0] ACPI: APIC 0x00000000BFFFFDB0 000076 (v05 Google GOOGAPIC 00000001 GOOG 00000001)
[ 0.029154][ T0] ACPI: SSDT 0x00000000BFFFF430 000980 (v01 Google GOOGSSDT 00000001 GOOG 00000001)
[ 0.030647][ T0] ACPI: WAET 0x00000000BFFFFE30 000028 (v01 Google GOOGWAET 00000001 GOOG 00000001)
[ 0.031929][ T0] ACPI: Reserving FACP table memory at [mem 0xbffff330-0xbffff423]
[ 0.033352][ T0] ACPI: Reserving DSDT table memory at [mem 0xbfffd8c0-0xbffff323]
[ 0.034529][ T0] ACPI: Reserving FACS table memory at [mem 0xbfffd880-0xbfffd8bf]
[ 0.035695][ T0] ACPI: Reserving FACS table memory at [mem 0xbfffd880-0xbfffd8bf]
[ 0.037105][ T0] ACPI: Reserving SRAT table memory at [mem 0xbffffe60-0xbfffff27]
[ 0.038412][ T0] ACPI: Reserving APIC table memory at [mem 0xbffffdb0-0xbffffe25]
[ 0.039627][ T0] ACPI: Reserving SSDT table memory at [mem 0xbffff430-0xbffffdaf]
[ 0.040971][ T0] ACPI: Reserving WAET table memory at [mem 0xbffffe30-0xbffffe57]
[ 0.043032][ T0] SRAT: PXM 0 -> APIC 0x00 -> Node 0
[ 0.044017][ T0] SRAT: PXM 0 -> APIC 0x01 -> Node 0
[ 0.044800][ T0] ACPI: SRAT: Node 0 PXM 0 [mem 0x00000000-0x0009ffff]
[ 0.045923][ T0] ACPI: SRAT: Node 0 PXM 0 [mem 0x00100000-0xbfffffff]
[ 0.046961][ T0] ACPI: SRAT: Node 0 PXM 0 [mem 0x100000000-0x23fffffff]
[ 0.047980][ T0] NUMA: Node 0 [mem 0x00000000-0x0009ffff] + [mem 0x00100000-0xbfffffff] -> [mem 0x00000000-0xbfffffff]
[ 0.049843][ T0] NUMA: Node 0 [mem 0x00000000-0xbfffffff] + [mem 0x100000000-0x23fffffff] -> [mem 0x00000000-0x23fffffff]
[ 0.052094][ T0] Faking node 0 at [mem 0x0000000000000000-0x000000013fffffff] (5120MB)
[ 0.053322][ T0] Faking node 1 at [mem 0x0000000140000000-0x000000023fffffff] (4096MB)
[ 0.054994][ T0] NODE_DATA(0) allocated [mem 0x13fffa000-0x13fffffff]
[ 0.056738][ T0] NODE_DATA(1) allocated [mem 0x23fff7000-0x23fffcfff]
[ 0.084729][ T0] Zone ranges:
[ 0.085277][ T0] DMA [mem 0x0000000000001000-0x0000000000ffffff]
[ 0.086319][ T0] DMA32 [mem 0x0000000001000000-0x00000000ffffffff]
[ 0.087349][ T0] Normal [mem 0x0000000100000000-0x000000023fffffff]
[ 0.088299][ T0] Device empty
[ 0.088942][ T0] Movable zone start for each node
[ 0.089800][ T0] Early memory node ranges
[ 0.090420][ T0] node 0: [mem 0x0000000000001000-0x000000000009efff]
[ 0.091446][ T0] node 0: [mem 0x0000000000100000-0x00000000bfffcfff]
[ 0.092412][ T0] node 0: [mem 0x0000000100000000-0x000000013fffffff]
[ 0.093465][ T0] node 1: [mem 0x0000000140000000-0x000000023fffffff]
[ 0.094506][ T0] Initmem setup node 0 [mem 0x0000000000001000-0x000000013fffffff]
[ 0.095646][ T0] Initmem setup node 1 [mem 0x0000000140000000-0x000000023fffffff]
[ 0.096786][ T0] On node 0, zone DMA: 1 pages in unavailable ranges
[ 0.096931][ T0] On node 0, zone DMA: 97 pages in unavailable ranges
[ 0.131330][ T0] On node 0, zone Normal: 3 pages in unavailable ranges
[ 0.386621][ T0] kasan: KernelAddressSanitizer initialized
[ 0.390200][ T0] ACPI: PM-Timer IO Port: 0xb008
[ 0.391596][ T0] ACPI: LAPIC_NMI (acpi_id[0xff] dfl dfl lint[0x1])
[ 0.393310][ T0] IOAPIC[0]: apic_id 0, version 17, address 0xfec00000, GSI 0-23
[ 0.395046][ T0] ACPI: INT_SRC_OVR (bus 0 bus_irq 5 global_irq 5 high level)
[ 0.396644][ T0] ACPI: INT_SRC_OVR (bus 0 bus_irq 9 global_irq 9 high level)
[ 0.398153][ T0] ACPI: INT_SRC_OVR (bus 0 bus_irq 10 global_irq 10 high level)
[ 0.399698][ T0] ACPI: INT_SRC_OVR (bus 0 bus_irq 11 global_irq 11 high level)
[ 0.400996][ T0] ACPI: Using ACPI (MADT) for SMP configuration information
[ 0.402995][ T0] smpboot: Allowing 2 CPUs, 0 hotplug CPUs
[ 0.404294][ T0] PM: hibernation: Registered nosave memory: [mem 0x00000000-0x00000fff]
[ 0.405936][ T0] PM: hibernation: Registered nosave memory: [mem 0x0009f000-0x0009ffff]
[ 0.407613][ T0] PM: hibernation: Registered nosave memory: [mem 0x000a0000-0x000effff]
[ 0.409547][ T0] PM: hibernation: Registered nosave memory: [mem 0x000f0000-0x000fffff]
[ 0.410839][ T0] PM: hibernation: Registered nosave memory: [mem 0xbfffd000-0xbfffffff]
[ 0.412260][ T0] PM: hibernation: Registered nosave memory: [mem 0xc0000000-0xfffbbfff]
[ 0.413758][ T0] PM: hibernation: Registered nosave memory: [mem 0xfffbc000-0xffffffff]
[ 0.415497][ T0] [mem 0xc0000000-0xfffbbfff] available for PCI devices
[ 0.416764][ T0] Booting paravirtualized kernel on KVM
[ 0.417583][ T0] clocksource: refined-jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604462750000 ns
[ 0.478795][ T0] setup_percpu: NR_CPUS:8 nr_cpumask_bits:2 nr_cpu_ids:2 nr_node_ids:2
[ 0.480902][ T0] percpu: Embedded 70 pages/cpu s248968 r8192 d29560 u1048576
[ 0.482684][ T0] kvm-guest: PV spinlocks enabled
[ 0.483893][ T0] PV qspinlock hash table entries: 256 (order: 0, 4096 bytes, linear)
[ 0.485733][ T0] Fallback order for Node 0: 0 1
[ 0.486873][ T0] Fallback order for Node 1: 1 0
[ 0.487740][ T0] Built 2 zonelists, mobility grouping on. Total pages: 2064125
[ 0.489393][ T0] Policy zone: Normal
[ 0.490532][ 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 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=16 vivid.multiplanar=1,2,1,2,1,2,1,2,1,2,1,2,1,2,1,2 netrom.nr_ndevs=16 rose.rose_ndevs=16 smp.csd_lock_timeout=100000 watchdog_thresh=55 workqueue.watchdog_thresh=140 sysctl.net.core.netdev_unregister_timeout_secs=140 dummy_hcd.num=8 panic_on_warn=1 BOOT_IMAGE=/boot/bzImage root=/dev/sda1 console=ttyS0
[ 0.513597][ T0] Unknown kernel command line parameters "spec_store_bypass_disable=prctl BOOT_IMAGE=/boot/bzImage", will be passed to user space.
[ 0.515871][ T0] random: crng init done
[ 0.517927][ T0] mem auto-init: stack:off, heap alloc:on, heap free:off
[ 0.521108][ T0] stackdepot hash table entries: 1048576 (order: 11, 8388608 bytes, linear)
[ 0.522579][ T0] software IO TLB: area num 2.
[ 1.198340][ T0] Memory: 6816860K/8388204K available (151552K kernel code, 36308K rwdata, 31528K rodata, 2900K init, 33472K bss, 1571088K reserved, 0K cma-reserved)
[ 1.201392][ T0] SLUB: HWalign=64, Order=0-3, MinObjects=0, CPUs=2, Nodes=2
[ 1.204765][ T0] Dynamic Preempt: full
[ 1.206326][ T0] Running RCU self tests
[ 1.206933][ T0] rcu: Preemptible hierarchical RCU implementation.
[ 1.208047][ T0] rcu: RCU lockdep checking is enabled.
[ 1.209531][ T0] rcu: RCU restricting CPUs from NR_CPUS=8 to nr_cpu_ids=2.
[ 1.210664][ T0] rcu: RCU callback double-/use-after-free debug is enabled.
[ 1.211833][ T0] rcu: RCU debug extended QS entry/exit.
[ 1.212761][ T0] All grace periods are expedited (rcu_expedited).
[ 1.213926][ T0] Trampoline variant of Tasks RCU enabled.
[ 1.215009][ T0] Tracing variant of Tasks RCU enabled.
[ 1.216138][ T0] rcu: RCU calculated value of scheduler-enlistment delay is 10 jiffies.
[ 1.217927][ T0] rcu: Adjusting geometry for rcu_fanout_leaf=16, nr_cpu_ids=2
[ 1.254583][ T0] NR_IRQS: 4352, nr_irqs: 440, preallocated irqs: 16
[ 1.256189][ T0] rcu: srcu_init: Setting srcu_struct sizes based on contention.
[ 1.259043][ T0] ------------[ cut here ]------------
[ 1.259992][ T0] WARNING: CPU: 0 PID: 0 at arch/x86/include/asm/kfence.h:46 kfence_protect+0x9e/0x190
[ 1.261677][ T0] Modules linked in:
[ 1.262273][ T0] CPU: 0 PID: 0 Comm: swapper/0 Not tainted 6.1.0-rc5-next-20221118-syzkaller #0
[ 1.263716][ T0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022
[ 1.265541][ T0] RIP: 0010:kfence_protect+0x9e/0x190
[ 1.266325][ T0] Code: 48 85 c0 74 20 48 89 c3 e8 8f 3f b2 ff 44 8b 74 24 20 bf 01 00 00 00 44 89 f6 e8 2d 3c b2 ff 41 83 fe 01 74 55 e8 72 3f b2 ff <0f> 0b 0f 0b c6 05 00 d0 a6 0c 00 45 31 ed c6 05 f5 cf a6 0c 01 e8
[ 1.269590][ T0] RSP: 0000:ffffffff8c407da8 EFLAGS: 00010093
[ 1.270882][ T0] RAX: 0000000000000000 RBX: ffff888012001040 RCX: 0000000000000000
[ 1.272448][ T0] RDX: ffffffff8c4bc980 RSI: ffffffff81ce6aee RDI: 0000000000000005
[ 1.274043][ T0] RBP: ffff88823bc00000 R08: 0000000000000005 R09: 0000000000000001
[ 1.275817][ T0] R10: 0000000000000003 R11: 0000000000000000 R12: 1ffffffff1880fb5
[ 1.277154][ T0] R13: dffffc0000000000 R14: 0000000000000003 R15: ffff88823bc00000
[ 1.278285][ T0] FS: 0000000000000000(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000
[ 1.279949][ T0] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 1.281340][ T0] CR2: ffff88823ffff000 CR3: 000000000c48e000 CR4: 00000000000406b0
[ 1.282551][ T0] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 1.283898][ T0] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[ 1.285468][ T0] Call Trace:
[ 1.285978][ T0]
[ 1.286404][ T0] ? next_object+0x70/0x70
[ 1.287350][ T0] ? set_memory_np_noalias+0xb0/0xb0
[ 1.288146][ T0] ? crng_reseed+0x154/0x260
[ 1.288839][ T0] ? lookup_address_in_pgd+0x2e2/0x330
[ 1.289624][ T0] kfence_init_pool+0x387/0x620
[ 1.290450][ T0] ? kfence_unprotect+0x190/0x190
[ 1.291230][ T0] ? random_init+0x169/0x19d
[ 1.291970][ T0] ? random_init_early+0x208/0x208
[ 1.293179][ T0] kfence_init+0x56/0x2db
[ 1.294000][ T0] start_kernel+0x26e/0x470
[ 1.294870][ T0] secondary_startup_64_no_verify+0xce/0xdb
[ 1.295771][ T0]
[ 1.296182][ T0] Kernel panic - not syncing: panic_on_warn set ...
[ 1.297156][ T0] CPU: 0 PID: 0 Comm: swapper/0 Not tainted 6.1.0-rc5-next-20221118-syzkaller #0
[ 1.298502][ T0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022
[ 1.300425][ T0] Call Trace:
[ 1.301080][ T0]
[ 1.301621][ T0] dump_stack_lvl+0xd1/0x138
[ 1.302511][ T0] panic+0x2cc/0x626
[ 1.303139][ T0] ? panic_print_sys_info.part.0+0x110/0x110
[ 1.304121][ T0] ? __warn.cold+0x24b/0x350
[ 1.304834][ T0] ? kfence_protect+0x9e/0x190
[ 1.305897][ T0] __warn.cold+0x25c/0x350
[ 1.306877][ T0] ? kfence_protect+0x9e/0x190
[ 1.307673][ T0] report_bug+0x1c0/0x210
[ 1.308391][ T0] handle_bug+0x3c/0x70
[ 1.309049][ T0] exc_invalid_op+0x18/0x50
[ 1.309887][ T0] asm_exc_invalid_op+0x1a/0x20
[ 1.310600][ T0] RIP: 0010:kfence_protect+0x9e/0x190
[ 1.311518][ T0] Code: 48 85 c0 74 20 48 89 c3 e8 8f 3f b2 ff 44 8b 74 24 20 bf 01 00 00 00 44 89 f6 e8 2d 3c b2 ff 41 83 fe 01 74 55 e8 72 3f b2 ff <0f> 0b 0f 0b c6 05 00 d0 a6 0c 00 45 31 ed c6 05 f5 cf a6 0c 01 e8
[ 1.314830][ T0] RSP: 0000:ffffffff8c407da8 EFLAGS: 00010093
[ 1.315832][ T0] RAX: 0000000000000000 RBX: ffff888012001040 RCX: 0000000000000000
[ 1.317135][ T0] RDX: ffffffff8c4bc980 RSI: ffffffff81ce6aee RDI: 0000000000000005
[ 1.318631][ T0] RBP: ffff88823bc00000 R08: 0000000000000005 R09: 0000000000000001
[ 1.319892][ T0] R10: 0000000000000003 R11: 0000000000000000 R12: 1ffffffff1880fb5
[ 1.321515][ T0] R13: dffffc0000000000 R14: 0000000000000003 R15: ffff88823bc00000
[ 1.322794][ T0] ? kfence_protect+0x9e/0x190
[ 1.323708][ T0] ? kfence_protect+0x9e/0x190
[ 1.324526][ T0] ? next_object+0x70/0x70
[ 1.325166][ T0] ? set_memory_np_noalias+0xb0/0xb0
[ 1.325959][ T0] ? crng_reseed+0x154/0x260
[ 1.326731][ T0] ? lookup_address_in_pgd+0x2e2/0x330
[ 1.328007][ T0] kfence_init_pool+0x387/0x620
[ 1.329106][ T0] ? kfence_unprotect+0x190/0x190
[ 1.329947][ T0] ? random_init+0x169/0x19d
[ 1.330654][ T0] ? random_init_early+0x208/0x208
[ 1.331447][ T0] kfence_init+0x56/0x2db
[ 1.332062][ T0] start_kernel+0x26e/0x470
[ 1.332974][ T0] secondary_startup_64_no_verify+0xce/0xdb
[ 1.334116][ T0]
[ 1.334613][ T0] Rebooting in 86400 seconds..
syzkaller build log:
go env (err=)
GO111MODULE="auto"
GOARCH="amd64"
GOBIN=""
GOCACHE="/syzkaller/.cache/go-build"
GOENV="/syzkaller/.config/go/env"
GOEXE=""
GOEXPERIMENT=""
GOFLAGS=""
GOHOSTARCH="amd64"
GOHOSTOS="linux"
GOINSECURE=""
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"
GOTMPDIR=""
GOTOOLDIR="/usr/local/go/pkg/tool/linux_amd64"
GOVCS=""
GOVERSION="go1.17"
GCCGO="gccgo"
AR="ar"
CC="gcc"
CXX="g++"
CGO_ENABLED="1"
GOMOD=""
CGO_CFLAGS="-g -O2"
CGO_CPPFLAGS=""
CGO_CXXFLAGS="-g -O2"
CGO_FFLAGS="-g -O2"
CGO_LDFLAGS="-g -O2"
PKG_CONFIG="pkg-config"
GOGCCFLAGS="-fPIC -m64 -pthread -fmessage-length=0 -fdebug-prefix-map=/tmp/go-build2157977023=/tmp/go-build -gno-record-gcc-switches"
git status (err=)
HEAD detached at c85e1c5be
nothing to commit, working tree clean
export BUILDOS=linux
export NATIVEBUILDOS=linux
export HOSTOS=linux
export HOSTARCH=amd64
export TARGETOS=linux
export TARGETARCH=amd64
export TARGETVMARCH=amd64
export CC=gcc
export ADDCFLAGS=-O2 -pthread -Wall -Werror -Wparentheses -Wunused-const-variable -Wframe-larger-than=8192 -m64 -static
export NCORES=62
export EXE=
export NATIVEBUILDOS=linux
GOOS=linux GOARCH=amd64 go install ./syz-fuzzer
make fuzzer execprog stress executor
make[1]: Entering directory '/syzkaller/jobs/linux/gopath/src/github.com/google/syzkaller'
export BUILDOS=linux
export NATIVEBUILDOS=linux
export HOSTOS=linux
export HOSTARCH=amd64
export TARGETOS=linux
export TARGETARCH=amd64
export TARGETVMARCH=amd64
export CC=gcc
export ADDCFLAGS=-O2 -pthread -Wall -Werror -Wparentheses -Wunused-const-variable -Wframe-larger-than=8192 -m64 -static
export NCORES=62
export EXE=
export NATIVEBUILDOS=linux
make[1]: warning: -j62 forced in makefile: resetting jobserver mode.
GOOS=linux GOARCH=amd64 go build "-ldflags=-s -w -X github.com/google/syzkaller/sys.GitRevision=c85e1c5be98819e885698b690ac15a8d05ae38a6 -X 'github.com/google/syzkaller/sys.gitRevisionDate=Sun May 26 13:55:37 2019 +0200'" "-tags=syz_target syz_os_linux syz_arch_amd64 " -o ./bin/linux_amd64/syz-fuzzer github.com/google/syzkaller/syz-fuzzer
GOOS=linux GOARCH=amd64 go build "-ldflags=-s -w -X github.com/google/syzkaller/sys.GitRevision=c85e1c5be98819e885698b690ac15a8d05ae38a6 -X 'github.com/google/syzkaller/sys.gitRevisionDate=Sun May 26 13:55:37 2019 +0200'" "-tags=syz_target syz_os_linux syz_arch_amd64 " -o ./bin/linux_amd64/syz-execprog github.com/google/syzkaller/tools/syz-execprog
GOOS=linux GOARCH=amd64 go build "-ldflags=-s -w -X github.com/google/syzkaller/sys.GitRevision=c85e1c5be98819e885698b690ac15a8d05ae38a6 -X 'github.com/google/syzkaller/sys.gitRevisionDate=Sun May 26 13:55:37 2019 +0200'" "-tags=syz_target syz_os_linux syz_arch_amd64 " -o ./bin/linux_amd64/syz-stress github.com/google/syzkaller/tools/syz-stress
mkdir -p ./bin/linux_amd64
gcc -o ./bin/linux_amd64/syz-executor executor/executor.cc \
-O2 -pthread -Wall -Werror -Wparentheses -Wunused-const-variable -Wframe-larger-than=8192 -m64 -static -fpermissive -w -DGOOS_linux=1 -DGOARCH_amd64=1 \
-DHOSTGOOS_linux=1 -DGIT_REVISION=\"c85e1c5be98819e885698b690ac15a8d05ae38a6\"
make[1]: Leaving directory '/syzkaller/jobs/linux/gopath/src/github.com/google/syzkaller'