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-android-44-kasan-gce-386-test-0 port 1 (session ID: fe1116b509cc2cf44802cf6f21308512198f598b5a16544a24d10d58b55dd9d8, active connections: 1). [ 0.000000] Disabling lock debugging due to kernel taint [ 0.000000] Kernel panic - not syncing: panic_on_warn set ... [ 0.000000] [ 0.000000] CPU: 0 PID: 0 Comm: swapper Tainted: G B 4.4.108-g55b3b8c #7 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 8095be64919d0ce4 ffffffff84207c40 ffffffff81d02e5d [ 0.000000] ffffffff83fb34b5 ffffffff84207d18 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d08 ffffffff81417caa 0000000041b58ab3 [ 0.000000] Call Trace: [ 0.000000] [] dump_stack+0xc1/0x124 [ 0.000000] [] panic+0x1aa/0x388 [ 0.000000] [] ? percpu_up_read.constprop.45+0xe1/0xe1 [ 0.000000] [] kasan_end_report+0x50/0x50 [ 0.000000] [] kasan_report+0x15c/0x370 [ 0.000000] [] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] free_all_bootmem+0xf2/0x24d [ 0.000000] [] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [] ? dmar_table_detect+0x60/0x60 [ 0.000000] [] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [] mem_init+0x13/0x74 [ 0.000000] [] start_kernel+0x31d/0x6e9 [ 0.000000] [] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [] x86_64_start_kernel+0x140/0x163 [ 0.000000] Rebooting in 86400 seconds.. [ 0.000000] ACPI MEMORY or I/O RESET_REG. SeaBIOS (version 1.8.2-20171012_061934-google) Total RAM Size = 0x00000001e0000000 = 7680 MiB CPUs found: 2 Max CPUs supported: 2 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 0x000f3050: PCHS=0/0/0 translation=lba LCHS=520/128/63 s=4194304 Booting from Hard Disk 0... early console in decompress_kernel input_data: 0x00000000039be26e input_len: 0x0000000001424e03 output: 0x0000000001000000 output_len: 0x0000000003dcea40 run_size: 0x0000000005504000 Decompressing Linux... Parsing ELF... done. Booting the kernel. [ 0.000000] Initializing cgroup subsys cpuset [ 0.000000] Initializing cgroup subsys cpu [ 0.000000] Initializing cgroup subsys cpuacct [ 0.000000] Initializing cgroup subsys schedtune [ 0.000000] Linux version 4.4.108-g55b3b8c (syzkaller@ci) (gcc version 7.1.1 20170620 (GCC) ) #7 SMP PREEMPT Fri Dec 29 21:50:38 UTC 2017 [ 0.000000] Command line: BOOT_IMAGE=/vmlinuz root=/dev/sda1 console=ttyS0 earlyprintk=serial vsyscall=native rodata=n ftrace_dump_on_oops=orig_cpu oops=panic panic_on_warn=1 nmi_watchdog=panic panic=86400 workqueue.watchdog_thresh=120 [ 0.000000] KERNEL supported cpus: [ 0.000000] Intel GenuineIntel [ 0.000000] AMD AuthenticAMD [ 0.000000] Centaur CentaurHauls [ 0.000000] x86/fpu: xstate_offset[2]: 576, xstate_sizes[2]: 256 [ 0.000000] x86/fpu: Supporting XSAVE feature 0x01: 'x87 floating point registers' [ 0.000000] x86/fpu: Supporting XSAVE feature 0x02: 'SSE registers' [ 0.000000] x86/fpu: Supporting XSAVE feature 0x04: 'AVX registers' [ 0.000000] x86/fpu: Enabled xstate features 0x7, context size is 832 bytes, using 'standard' format. [ 0.000000] x86/fpu: Using 'eager' FPU context switches. [ 0.000000] e820: BIOS-provided physical RAM map: [ 0.000000] BIOS-e820: [mem 0x0000000000000000-0x000000000009fbff] usable [ 0.000000] BIOS-e820: [mem 0x000000000009fc00-0x000000000009ffff] reserved [ 0.000000] BIOS-e820: [mem 0x00000000000f0000-0x00000000000fffff] reserved [ 0.000000] BIOS-e820: [mem 0x0000000000100000-0x00000000bfffcfff] usable [ 0.000000] BIOS-e820: [mem 0x00000000bfffd000-0x00000000bfffffff] reserved [ 0.000000] BIOS-e820: [mem 0x00000000fffbc000-0x00000000ffffffff] reserved [ 0.000000] BIOS-e820: [mem 0x0000000100000000-0x000000021fffffff] usable [ 0.000000] bootconsole [earlyser0] enabled [ 0.000000] NX (Execute Disable) protection: active [ 0.000000] SMBIOS 2.4 present. [ 0.000000] Hypervisor detected: KVM [ 0.000000] e820: last_pfn = 0x220000 max_arch_pfn = 0x400000000 [ 0.000000] x86/PAT: Configuration [0-7]: WB WC UC- UC WB WC UC- WT [ 0.000000] e820: last_pfn = 0xbfffd max_arch_pfn = 0x400000000 [ 0.000000] found SMP MP-table at [mem 0x000f32c0-0x000f32cf] mapped at [ffff8800000f32c0] [ 0.000000] Scanning 1 areas for low memory corruption [ 0.000000] Using GB pages for direct mapping [ 0.000000] ACPI: Early table checksum verification disabled [ 0.000000] ACPI: RSDP 0x00000000000F3090 000014 (v00 Google) [ 0.000000] ACPI: RSDT 0x00000000BFFFDC70 000034 (v01 Google GOOGRSDT 00000001 GOOG 00000001) [ 0.000000] ACPI: FACP 0x00000000BFFFFF00 0000F4 (v02 Google GOOGFACP 00000001 GOOG 00000001) [ 0.000000] ACPI: DSDT 0x00000000BFFFDCB0 0017B2 (v01 Google GOOGDSDT 00000001 GOOG 00000001) [ 0.000000] ACPI: FACS 0x00000000BFFFFEC0 000040 [ 0.000000] ACPI: FACS 0x00000000BFFFFEC0 000040 [ 0.000000] ACPI: SSDT 0x00000000BFFFF590 000930 (v01 Google GOOGSSDT 00000001 GOOG 00000001) [ 0.000000] ACPI: APIC 0x00000000BFFFF4A0 000076 (v01 Google GOOGAPIC 00000001 GOOG 00000001) [ 0.000000] ACPI: WAET 0x00000000BFFFF470 000028 (v01 Google GOOGWAET 00000001 GOOG 00000001) [ 0.000000] kvm-clock: Using msrs 4b564d01 and 4b564d00 [ 0.000000] kvm-clock: cpu 0, msr 2:1fffd001, primary cpu clock [ 0.000000] kvm-clock: using sched offset of 1219531658 cycles [ 0.000000] clocksource: kvm-clock: mask: 0xffffffffffffffff max_cycles: 0x1cd42e4dffb, max_idle_ns: 881590591483 ns [ 0.000000] Zone ranges: [ 0.000000] DMA [mem 0x0000000000001000-0x0000000000ffffff] [ 0.000000] DMA32 [mem 0x0000000001000000-0x00000000ffffffff] [ 0.000000] Normal [mem 0x0000000100000000-0x000000021fffffff] [ 0.000000] Movable zone start for each node [ 0.000000] Early memory node ranges [ 0.000000] node 0: [mem 0x0000000000001000-0x000000000009efff] [ 0.000000] node 0: [mem 0x0000000000100000-0x00000000bfffcfff] [ 0.000000] node 0: [mem 0x0000000100000000-0x000000021fffffff] [ 0.000000] Initmem setup node 0 [mem 0x0000000000001000-0x000000021fffffff] [ 0.000000] kasan: KernelAddressSanitizer initialized [ 0.000000] ACPI: PM-Timer IO Port: 0xb008 [ 0.000000] ACPI: LAPIC_NMI (acpi_id[0xff] dfl dfl lint[0x1]) [ 0.000000] IOAPIC[0]: apic_id 0, version 17, address 0xfec00000, GSI 0-23 [ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 5 global_irq 5 high level) [ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 9 global_irq 9 high level) [ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 10 global_irq 10 high level) [ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 11 global_irq 11 high level) [ 0.000000] Using ACPI (MADT) for SMP configuration information [ 0.000000] smpboot: Allowing 2 CPUs, 0 hotplug CPUs [ 0.000000] PM: Registered nosave memory: [mem 0x00000000-0x00000fff] [ 0.000000] PM: Registered nosave memory: [mem 0x0009f000-0x0009ffff] [ 0.000000] PM: Registered nosave memory: [mem 0x000a0000-0x000effff] [ 0.000000] PM: Registered nosave memory: [mem 0x000f0000-0x000fffff] [ 0.000000] PM: Registered nosave memory: [mem 0xbfffd000-0xbfffffff] [ 0.000000] PM: Registered nosave memory: [mem 0xc0000000-0xfffbbfff] [ 0.000000] PM: Registered nosave memory: [mem 0xfffbc000-0xffffffff] [ 0.000000] e820: [mem 0xc0000000-0xfffbbfff] available for PCI devices [ 0.000000] Booting paravirtualized kernel on KVM [ 0.000000] clocksource: refined-jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604462750000 ns [ 0.000000] setup_percpu: NR_CPUS:64 nr_cpumask_bits:64 nr_cpu_ids:2 nr_node_ids:1 [ 0.000000] PERCPU: Embedded 42 pages/cpu @ffff8801db200000 s132680 r8192 d31160 u1048576 [ 0.000000] Built 1 zonelists in Zone order, mobility grouping on. Total pages: 1935238 [ 0.000000] Kernel command line: BOOT_IMAGE=/vmlinuz root=/dev/sda1 console=ttyS0 earlyprintk=serial vsyscall=native rodata=n ftrace_dump_on_oops=orig_cpu oops=panic panic_on_warn=1 nmi_watchdog=panic panic=86400 workqueue.watchdog_thresh=120 [ 0.000000] PID hash table entries: 4096 (order: 3, 32768 bytes) [ 0.000000] Dentry cache hash table entries: 1048576 (order: 11, 8388608 bytes) [ 0.000000] Inode-cache hash table entries: 524288 (order: 10, 4194304 bytes) [ 0.000000] ================================================================== [ 0.000000] BUG: KASAN: stack-out-of-bounds in reserve_bootmem_region+0xdf/0x130 [ 0.000000] Write of size 8 at addr ffffea0000047ce0 by task swapper/0 [ 0.000000] [ 0.000000] CPU: 0 PID: 0 Comm: swapper Not tainted 4.4.108-g55b3b8c #7 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 6b4ab7bb7c52063b ffffffff84207ce8 ffffffff81d02e5d [ 0.000000] ffffea0000047ce0 ffffea0000047ce0 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d20 ffffffff814fb329 ffffea0000047ce0 [ 0.000000] Call Trace: [ 0.000000] [] dump_stack+0xc1/0x124 [ 0.000000] [] print_address_description+0x189/0x260 [ 0.000000] [] kasan_report+0x285/0x370 [ 0.000000] [] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] free_all_bootmem+0xf2/0x24d [ 0.000000] [] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [] ? dmar_table_detect+0x60/0x60 [ 0.000000] [] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [] mem_init+0x13/0x74 [ 0.000000] [] start_kernel+0x31d/0x6e9 [ 0.000000] [] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [] x86_64_start_kernel+0x140/0x163 [ 0.000000] [ 0.000000] [ 0.000000] Memory state around the buggy address: [ 0.000000] ffffea0000047b80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ffffea0000047c00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] >ffffea0000047c80: 00 00 00 00 00 00 f1 f1 f1 f1 00 00 f2 f2 00 00 [ 0.000000] ^ [ 0.000000] ffffea0000047d00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ffffea0000047d80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ================================================================== [ 0.000000] Disabling lock debugging due to kernel taint [ 0.000000] Kernel panic - not syncing: panic_on_warn set ... [ 0.000000] [ 0.000000] CPU: 0 PID: 0 Comm: swapper Tainted: G B 4.4.108-g55b3b8c #7 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 6b4ab7bb7c52063b ffffffff84207c40 ffffffff81d02e5d [ 0.000000] ffffffff83fb34b5 ffffffff84207d18 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d08 ffffffff81417caa 0000000041b58ab3 [ 0.000000] Call Trace: [ 0.000000] [] dump_stack+0xc1/0x124 [ 0.000000] [] panic+0x1aa/0x388 [ 0.000000] [] ? percpu_up_read.constprop.45+0xe1/0xe1 [ 0.000000] [] kasan_end_report+0x50/0x50 [ 0.000000] [] kasan_report+0x15c/0x370 [ 0.000000] [] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] free_all_bootmem+0xf2/0x24d [ 0.000000] [] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [] ? dmar_table_detect+0x60/0x60 [ 0.000000] [] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [] mem_init+0x13/0x74 [ 0.000000] [] start_kernel+0x31d/0x6e9 [ 0.000000] [] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [] x86_64_start_kernel+0x140/0x163 [ 0.000000] Rebooting in 86400 seconds.. [ 0.000000] ACPI MEMORY or I/O RESET_REG. SeaBIOS (version 1.8.2-20171012_061934-google) Total RAM Size = 0x00000001e0000000 = 7680 MiB CPUs found: 2 Max CPUs supported: 2 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 0x000f3050: PCHS=0/0/0 translation=lba LCHS=520/128/63 s=4194304 Booting from Hard Disk 0... early console in decompress_kernel input_data: 0x00000000039be26e input_len: 0x0000000001424e03 output: 0x0000000001000000 output_len: 0x0000000003dcea40 run_size: 0x0000000005504000 Decompressing Linux... Parsing ELF... done. Booting the kernel. [ 0.000000] Initializing cgroup subsys cpuset [ 0.000000] Initializing cgroup subsys cpu [ 0.000000] Initializing cgroup subsys cpuacct [ 0.000000] Initializing cgroup subsys schedtune [ 0.000000] Linux version 4.4.108-g55b3b8c (syzkaller@ci) (gcc version 7.1.1 20170620 (GCC) ) #7 SMP PREEMPT Fri Dec 29 21:50:38 UTC 2017 [ 0.000000] Command line: BOOT_IMAGE=/vmlinuz root=/dev/sda1 console=ttyS0 earlyprintk=serial vsyscall=native rodata=n ftrace_dump_on_oops=orig_cpu oops=panic panic_on_warn=1 nmi_watchdog=panic panic=86400 workqueue.watchdog_thresh=120 [ 0.000000] KERNEL supported cpus: [ 0.000000] Intel GenuineIntel [ 0.000000] AMD AuthenticAMD [ 0.000000] Centaur CentaurHauls [ 0.000000] x86/fpu: xstate_offset[2]: 576, xstate_sizes[2]: 256 [ 0.000000] x86/fpu: Supporting XSAVE feature 0x01: 'x87 floating point registers' [ 0.000000] x86/fpu: Supporting XSAVE feature 0x02: 'SSE registers' [ 0.000000] x86/fpu: Supporting XSAVE feature 0x04: 'AVX registers' [ 0.000000] x86/fpu: Enabled xstate features 0x7, context size is 832 bytes, using 'standard' format. [ 0.000000] x86/fpu: Using 'eager' FPU context switches. [ 0.000000] e820: BIOS-provided physical RAM map: [ 0.000000] BIOS-e820: [mem 0x0000000000000000-0x000000000009fbff] usable [ 0.000000] BIOS-e820: [mem 0x000000000009fc00-0x000000000009ffff] reserved [ 0.000000] BIOS-e820: [mem 0x00000000000f0000-0x00000000000fffff] reserved [ 0.000000] BIOS-e820: [mem 0x0000000000100000-0x00000000bfffcfff] usable [ 0.000000] BIOS-e820: [mem 0x00000000bfffd000-0x00000000bfffffff] reserved [ 0.000000] BIOS-e820: [mem 0x00000000fffbc000-0x00000000ffffffff] reserved [ 0.000000] BIOS-e820: [mem 0x0000000100000000-0x000000021fffffff] usable [ 0.000000] bootconsole [earlyser0] enabled [ 0.000000] NX (Execute Disable) protection: active [ 0.000000] SMBIOS 2.4 present. [ 0.000000] Hypervisor detected: KVM [ 0.000000] e820: last_pfn = 0x220000 max_arch_pfn = 0x400000000 [ 0.000000] x86/PAT: Configuration [0-7]: WB WC UC- UC WB WC UC- WT [ 0.000000] e820: last_pfn = 0xbfffd max_arch_pfn = 0x400000000 [ 0.000000] found SMP MP-table at [mem 0x000f32c0-0x000f32cf] mapped at [ffff8800000f32c0] [ 0.000000] Scanning 1 areas for low memory corruption [ 0.000000] Using GB pages for direct mapping [ 0.000000] ACPI: Early table checksum verification disabled [ 0.000000] ACPI: RSDP 0x00000000000F3090 000014 (v00 Google) [ 0.000000] ACPI: RSDT 0x00000000BFFFDC70 000034 (v01 Google GOOGRSDT 00000001 GOOG 00000001) [ 0.000000] ACPI: FACP 0x00000000BFFFFF00 0000F4 (v02 Google GOOGFACP 00000001 GOOG 00000001) [ 0.000000] ACPI: DSDT 0x00000000BFFFDCB0 0017B2 (v01 Google GOOGDSDT 00000001 GOOG 00000001) [ 0.000000] ACPI: FACS 0x00000000BFFFFEC0 000040 [ 0.000000] ACPI: FACS 0x00000000BFFFFEC0 000040 [ 0.000000] ACPI: SSDT 0x00000000BFFFF590 000930 (v01 Google GOOGSSDT 00000001 GOOG 00000001) [ 0.000000] ACPI: APIC 0x00000000BFFFF4A0 000076 (v01 Google GOOGAPIC 00000001 GOOG 00000001) [ 0.000000] ACPI: WAET 0x00000000BFFFF470 000028 (v01 Google GOOGWAET 00000001 GOOG 00000001) [ 0.000000] kvm-clock: Using msrs 4b564d01 and 4b564d00 [ 0.000000] kvm-clock: cpu 0, msr 2:1fffd001, primary cpu clock [ 0.000000] kvm-clock: using sched offset of 1208223019 cycles [ 0.000000] clocksource: kvm-clock: mask: 0xffffffffffffffff max_cycles: 0x1cd42e4dffb, max_idle_ns: 881590591483 ns [ 0.000000] Zone ranges: [ 0.000000] DMA [mem 0x0000000000001000-0x0000000000ffffff] [ 0.000000] DMA32 [mem 0x0000000001000000-0x00000000ffffffff] [ 0.000000] Normal [mem 0x0000000100000000-0x000000021fffffff] [ 0.000000] Movable zone start for each node [ 0.000000] Early memory node ranges [ 0.000000] node 0: [mem 0x0000000000001000-0x000000000009efff] [ 0.000000] node 0: [mem 0x0000000000100000-0x00000000bfffcfff] [ 0.000000] node 0: [mem 0x0000000100000000-0x000000021fffffff] [ 0.000000] Initmem setup node 0 [mem 0x0000000000001000-0x000000021fffffff] [ 0.000000] kasan: KernelAddressSanitizer initialized [ 0.000000] ACPI: PM-Timer IO Port: 0xb008 [ 0.000000] ACPI: LAPIC_NMI (acpi_id[0xff] dfl dfl lint[0x1]) [ 0.000000] IOAPIC[0]: apic_id 0, version 17, address 0xfec00000, GSI 0-23 [ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 5 global_irq 5 high level) [ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 9 global_irq 9 high level) [ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 10 global_irq 10 high level) [ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 11 global_irq 11 high level) [ 0.000000] Using ACPI (MADT) for SMP configuration information [ 0.000000] smpboot: Allowing 2 CPUs, 0 hotplug CPUs [ 0.000000] PM: Registered nosave memory: [mem 0x00000000-0x00000fff] [ 0.000000] PM: Registered nosave memory: [mem 0x0009f000-0x0009ffff] [ 0.000000] PM: Registered nosave memory: [mem 0x000a0000-0x000effff] [ 0.000000] PM: Registered nosave memory: [mem 0x000f0000-0x000fffff] [ 0.000000] PM: Registered nosave memory: [mem 0xbfffd000-0xbfffffff] [ 0.000000] PM: Registered nosave memory: [mem 0xc0000000-0xfffbbfff] [ 0.000000] PM: Registered nosave memory: [mem 0xfffbc000-0xffffffff] [ 0.000000] e820: [mem 0xc0000000-0xfffbbfff] available for PCI devices [ 0.000000] Booting paravirtualized kernel on KVM [ 0.000000] clocksource: refined-jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604462750000 ns [ 0.000000] setup_percpu: NR_CPUS:64 nr_cpumask_bits:64 nr_cpu_ids:2 nr_node_ids:1 [ 0.000000] PERCPU: Embedded 42 pages/cpu @ffff8801db200000 s132680 r8192 d31160 u1048576 [ 0.000000] Built 1 zonelists in Zone order, mobility grouping on. Total pages: 1935238 [ 0.000000] Kernel command line: BOOT_IMAGE=/vmlinuz root=/dev/sda1 console=ttyS0 earlyprintk=serial vsyscall=native rodata=n ftrace_dump_on_oops=orig_cpu oops=panic panic_on_warn=1 nmi_watchdog=panic panic=86400 workqueue.watchdog_thresh=120 [ 0.000000] PID hash table entries: 4096 (order: 3, 32768 bytes) [ 0.000000] Dentry cache hash table entries: 1048576 (order: 11, 8388608 bytes) [ 0.000000] Inode-cache hash table entries: 524288 (order: 10, 4194304 bytes) [ 0.000000] ================================================================== [ 0.000000] BUG: KASAN: stack-out-of-bounds in reserve_bootmem_region+0xdf/0x130 [ 0.000000] Write of size 8 at addr ffffea0000047ce0 by task swapper/0 [ 0.000000] [ 0.000000] CPU: 0 PID: 0 Comm: swapper Not tainted 4.4.108-g55b3b8c #7 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 69cae1197ad22f99 ffffffff84207ce8 ffffffff81d02e5d [ 0.000000] ffffea0000047ce0 ffffea0000047ce0 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d20 ffffffff814fb329 ffffea0000047ce0 [ 0.000000] Call Trace: [ 0.000000] [] dump_stack+0xc1/0x124 [ 0.000000] [] print_address_description+0x189/0x260 [ 0.000000] [] kasan_report+0x285/0x370 [ 0.000000] [] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] free_all_bootmem+0xf2/0x24d [ 0.000000] [] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [] ? dmar_table_detect+0x60/0x60 [ 0.000000] [] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [] mem_init+0x13/0x74 [ 0.000000] [] start_kernel+0x31d/0x6e9 [ 0.000000] [] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [] x86_64_start_kernel+0x140/0x163 [ 0.000000] [ 0.000000] [ 0.000000] Memory state around the buggy address: [ 0.000000] ffffea0000047b80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ffffea0000047c00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] >ffffea0000047c80: 00 00 00 00 00 00 f1 f1 f1 f1 00 00 f2 f2 00 00 [ 0.000000] ^ [ 0.000000] ffffea0000047d00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ffffea0000047d80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ================================================================== [ 0.000000] Disabling lock debugging due to kernel taint [ 0.000000] Kernel panic - not syncing: panic_on_warn set ... [ 0.000000] [ 0.000000] CPU: 0 PID: 0 Comm: swapper Tainted: G B 4.4.108-g55b3b8c #7 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 69cae1197ad22f99 ffffffff84207c40 ffffffff81d02e5d [ 0.000000] ffffffff83fb34b5 ffffffff84207d18 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d08 ffffffff81417caa 0000000041b58ab3 [ 0.000000] Call Trace: [ 0.000000] [] dump_stack+0xc1/0x124 [ 0.000000] [] panic+0x1aa/0x388 [ 0.000000] [] ? percpu_up_read.constprop.45+0xe1/0xe1 [ 0.000000] [] kasan_end_report+0x50/0x50 [ 0.000000] [] kasan_report+0x15c/0x370 [ 0.000000] [] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] free_all_bootmem+0xf2/0x24d [ 0.000000] [] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [] ? dmar_table_detect+0x60/0x60 [ 0.000000] [] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [] mem_init+0x13/0x74 [ 0.000000] [] start_kernel+0x31d/0x6e9 [ 0.000000] [] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [] x86_64_start_kernel+0x140/0x163 [ 0.000000] Rebooting in 86400 seconds.. [ 0.000000] ACPI MEMORY or I/O RESET_REG. SeaBIOS (version 1.8.2-20171012_061934-google) Total RAM Size = 0x00000001e0000000 = 7680 MiB CPUs found: 2 Max CPUs supported: 2 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 0x000f3050: PCHS=0/0/0 translation=lba LCHS=520/128/63 s=4194304 Booting from Hard Disk 0... early console in decompress_kernel input_data: 0x00000000039be26e input_len: 0x0000000001424e03 output: 0x0000000001000000 output_len: 0x0000000003dcea40 run_size: 0x0000000005504000 Decompressing Linux... Parsing ELF... done. Booting the kernel. [ 0.000000] Initializing cgroup subsys cpuset [ 0.000000] Initializing cgroup subsys cpu [ 0.000000] Initializing cgroup subsys cpuacct [ 0.000000] Initializing cgroup subsys schedtune [ 0.000000] Linux version 4.4.108-g55b3b8c (syzkaller@ci) (gcc version 7.1.1 20170620 (GCC) ) #7 SMP PREEMPT Fri Dec 29 21:50:38 UTC 2017 [ 0.000000] Command line: BOOT_IMAGE=/vmlinuz root=/dev/sda1 console=ttyS0 earlyprintk=serial vsyscall=native rodata=n ftrace_dump_on_oops=orig_cpu oops=panic panic_on_warn=1 nmi_watchdog=panic panic=86400 workqueue.watchdog_thresh=120 [ 0.000000] KERNEL supported cpus: [ 0.000000] Intel GenuineIntel [ 0.000000] AMD AuthenticAMD [ 0.000000] Centaur CentaurHauls [ 0.000000] x86/fpu: xstate_offset[2]: 576, xstate_sizes[2]: 256 [ 0.000000] x86/fpu: Supporting XSAVE feature 0x01: 'x87 floating point registers' [ 0.000000] x86/fpu: Supporting XSAVE feature 0x02: 'SSE registers' [ 0.000000] x86/fpu: Supporting XSAVE feature 0x04: 'AVX registers' [ 0.000000] x86/fpu: Enabled xstate features 0x7, context size is 832 bytes, using 'standard' format. [ 0.000000] x86/fpu: Using 'eager' FPU context switches. [ 0.000000] e820: BIOS-provided physical RAM map: [ 0.000000] BIOS-e820: [mem 0x0000000000000000-0x000000000009fbff] usable [ 0.000000] BIOS-e820: [mem 0x000000000009fc00-0x000000000009ffff] reserved [ 0.000000] BIOS-e820: [mem 0x00000000000f0000-0x00000000000fffff] reserved [ 0.000000] BIOS-e820: [mem 0x0000000000100000-0x00000000bfffcfff] usable [ 0.000000] BIOS-e820: [mem 0x00000000bfffd000-0x00000000bfffffff] reserved [ 0.000000] BIOS-e820: [mem 0x00000000fffbc000-0x00000000ffffffff] reserved [ 0.000000] BIOS-e820: [mem 0x0000000100000000-0x000000021fffffff] usable [ 0.000000] bootconsole [earlyser0] enabled [ 0.000000] NX (Execute Disable) protection: active [ 0.000000] SMBIOS 2.4 present. [ 0.000000] Hypervisor detected: KVM [ 0.000000] e820: last_pfn = 0x220000 max_arch_pfn = 0x400000000 [ 0.000000] x86/PAT: Configuration [0-7]: WB WC UC- UC WB WC UC- WT [ 0.000000] e820: last_pfn = 0xbfffd max_arch_pfn = 0x400000000 [ 0.000000] found SMP MP-table at [mem 0x000f32c0-0x000f32cf] mapped at [ffff8800000f32c0] [ 0.000000] Scanning 1 areas for low memory corruption [ 0.000000] Using GB pages for direct mapping [ 0.000000] ACPI: Early table checksum verification disabled [ 0.000000] ACPI: RSDP 0x00000000000F3090 000014 (v00 Google) [ 0.000000] ACPI: RSDT 0x00000000BFFFDC70 000034 (v01 Google GOOGRSDT 00000001 GOOG 00000001) [ 0.000000] ACPI: FACP 0x00000000BFFFFF00 0000F4 (v02 Google GOOGFACP 00000001 GOOG 00000001) [ 0.000000] ACPI: DSDT 0x00000000BFFFDCB0 0017B2 (v01 Google GOOGDSDT 00000001 GOOG 00000001) [ 0.000000] ACPI: FACS 0x00000000BFFFFEC0 000040 [ 0.000000] ACPI: FACS 0x00000000BFFFFEC0 000040 [ 0.000000] ACPI: SSDT 0x00000000BFFFF590 000930 (v01 Google GOOGSSDT 00000001 GOOG 00000001) [ 0.000000] ACPI: APIC 0x00000000BFFFF4A0 000076 (v01 Google GOOGAPIC 00000001 GOOG 00000001) [ 0.000000] ACPI: WAET 0x00000000BFFFF470 000028 (v01 Google GOOGWAET 00000001 GOOG 00000001) [ 0.000000] kvm-clock: Using msrs 4b564d01 and 4b564d00 [ 0.000000] kvm-clock: cpu 0, msr 2:1fffd001, primary cpu clock [ 0.000000] kvm-clock: using sched offset of 1239494609 cycles [ 0.000000] clocksource: kvm-clock: mask: 0xffffffffffffffff max_cycles: 0x1cd42e4dffb, max_idle_ns: 881590591483 ns [ 0.000000] Zone ranges: [ 0.000000] DMA [mem 0x0000000000001000-0x0000000000ffffff] [ 0.000000] DMA32 [mem 0x0000000001000000-0x00000000ffffffff] [ 0.000000] Normal [mem 0x0000000100000000-0x000000021fffffff] [ 0.000000] Movable zone start for each node [ 0.000000] Early memory node ranges [ 0.000000] node 0: [mem 0x0000000000001000-0x000000000009efff] [ 0.000000] node 0: [mem 0x0000000000100000-0x00000000bfffcfff] [ 0.000000] node 0: [mem 0x0000000100000000-0x000000021fffffff] [ 0.000000] Initmem setup node 0 [mem 0x0000000000001000-0x000000021fffffff] [ 0.000000] kasan: KernelAddressSanitizer initialized [ 0.000000] ACPI: PM-Timer IO Port: 0xb008 [ 0.000000] ACPI: LAPIC_NMI (acpi_id[0xff] dfl dfl lint[0x1]) [ 0.000000] IOAPIC[0]: apic_id 0, version 17, address 0xfec00000, GSI 0-23 [ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 5 global_irq 5 high level) [ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 9 global_irq 9 high level) [ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 10 global_irq 10 high level) [ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 11 global_irq 11 high level) [ 0.000000] Using ACPI (MADT) for SMP configuration information [ 0.000000] smpboot: Allowing 2 CPUs, 0 hotplug CPUs [ 0.000000] PM: Registered nosave memory: [mem 0x00000000-0x00000fff] [ 0.000000] PM: Registered nosave memory: [mem 0x0009f000-0x0009ffff] [ 0.000000] PM: Registered nosave memory: [mem 0x000a0000-0x000effff] [ 0.000000] PM: Registered nosave memory: [mem 0x000f0000-0x000fffff] [ 0.000000] PM: Registered nosave memory: [mem 0xbfffd000-0xbfffffff] [ 0.000000] PM: Registered nosave memory: [mem 0xc0000000-0xfffbbfff] [ 0.000000] PM: Registered nosave memory: [mem 0xfffbc000-0xffffffff] [ 0.000000] e820: [mem 0xc0000000-0xfffbbfff] available for PCI devices [ 0.000000] Booting paravirtualized kernel on KVM [ 0.000000] clocksource: refined-jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604462750000 ns [ 0.000000] setup_percpu: NR_CPUS:64 nr_cpumask_bits:64 nr_cpu_ids:2 nr_node_ids:1 [ 0.000000] PERCPU: Embedded 42 pages/cpu @ffff8801db200000 s132680 r8192 d31160 u1048576 [ 0.000000] Built 1 zonelists in Zone order, mobility grouping on. Total pages: 1935238 [ 0.000000] Kernel command line: BOOT_IMAGE=/vmlinuz root=/dev/sda1 console=ttyS0 earlyprintk=serial vsyscall=native rodata=n ftrace_dump_on_oops=orig_cpu oops=panic panic_on_warn=1 nmi_watchdog=panic panic=86400 workqueue.watchdog_thresh=120 [ 0.000000] PID hash table entries: 4096 (order: 3, 32768 bytes) [ 0.000000] Dentry cache hash table entries: 1048576 (order: 11, 8388608 bytes) [ 0.000000] Inode-cache hash table entries: 524288 (order: 10, 4194304 bytes) [ 0.000000] ================================================================== [ 0.000000] BUG: KASAN: stack-out-of-bounds in reserve_bootmem_region+0xdf/0x130 [ 0.000000] Write of size 8 at addr ffffea0000047ce0 by task swapper/0 [ 0.000000] [ 0.000000] CPU: 0 PID: 0 Comm: swapper Not tainted 4.4.108-g55b3b8c #7 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 6e0647b37f0d9633 ffffffff84207ce8 ffffffff81d02e5d [ 0.000000] ffffea0000047ce0 ffffea0000047ce0 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d20 ffffffff814fb329 ffffea0000047ce0 [ 0.000000] Call Trace: [ 0.000000] [] dump_stack+0xc1/0x124 [ 0.000000] [] print_address_description+0x189/0x260 [ 0.000000] [] kasan_report+0x285/0x370 [ 0.000000] [] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] free_all_bootmem+0xf2/0x24d [ 0.000000] [] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [] ? dmar_table_detect+0x60/0x60 [ 0.000000] [] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [] mem_init+0x13/0x74 [ 0.000000] [] start_kernel+0x31d/0x6e9 [ 0.000000] [] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [] x86_64_start_kernel+0x140/0x163 [ 0.000000] [ 0.000000] [ 0.000000] Memory state around the buggy address: [ 0.000000] ffffea0000047b80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ffffea0000047c00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] >ffffea0000047c80: 00 00 00 00 00 00 f1 f1 f1 f1 00 00 f2 f2 00 00 [ 0.000000] ^ [ 0.000000] ffffea0000047d00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ffffea0000047d80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ================================================================== [ 0.000000] Disabling lock debugging due to kernel taint [ 0.000000] Kernel panic - not syncing: panic_on_warn set ... [ 0.000000] [ 0.000000] CPU: 0 PID: 0 Comm: swapper Tainted: G B 4.4.108-g55b3b8c #7 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 6e0647b37f0d9633 ffffffff84207c40 ffffffff81d02e5d [ 0.000000] ffffffff83fb34b5 ffffffff84207d18 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d08 ffffffff81417caa 0000000041b58ab3 [ 0.000000] Call Trace: [ 0.000000] [] dump_stack+0xc1/0x124 [ 0.000000] [] panic+0x1aa/0x388 [ 0.000000] [] ? percpu_up_read.constprop.45+0xe1/0xe1 [ 0.000000] [] kasan_end_report+0x50/0x50 [ 0.000000] [] kasan_report+0x15c/0x370 [ 0.000000] [] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] free_all_bootmem+0xf2/0x24d [ 0.000000] [] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [] ? dmar_table_detect+0x60/0x60 [ 0.000000] [] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [] mem_init+0x13/0x74 [ 0.000000] [] start_kernel+0x31d/0x6e9 [ 0.000000] [] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [] x86_64_start_kernel+0x140/0x163 [ 0.000000] Rebooting in 86400 seconds.. [ 0.000000] ACPI MEMORY or I/O RESET_REG. SeaBIOS (version 1.8.2-20171012_061934-google) Total RAM Size = 0x00000001e0000000 = 7680 MiB CPUs found: 2 Max CPUs supported: 2 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 0x000f3050: PCHS=0/0/0 translation=lba LCHS=520/128/63 s=4194304 Booting from Hard Disk 0... early console in decompress_kernel input_data: 0x00000000039be26e input_len: 0x0000000001424e03 output: 0x0000000001000000 output_len: 0x0000000003dcea40 run_size: 0x0000000005504000 Decompressing Linux... Parsing ELF... done. Booting the kernel. [ 0.000000] Initializing cgroup subsys cpuset [ 0.000000] Initializing cgroup subsys cpu [ 0.000000] Initializing cgroup subsys cpuacct [ 0.000000] Initializing cgroup subsys schedtune [ 0.000000] Linux version 4.4.108-g55b3b8c (syzkaller@ci) (gcc version 7.1.1 20170620 (GCC) ) #7 SMP PREEMPT Fri Dec 29 21:50:38 UTC 2017 [ 0.000000] Command line: BOOT_IMAGE=/vmlinuz root=/dev/sda1 console=ttyS0 earlyprintk=serial vsyscall=native rodata=n ftrace_dump_on_oops=orig_cpu oops=panic panic_on_warn=1 nmi_watchdog=panic panic=86400 workqueue.watchdog_thresh=120 [ 0.000000] KERNEL supported cpus: [ 0.000000] Intel GenuineIntel [ 0.000000] AMD AuthenticAMD [ 0.000000] Centaur CentaurHauls [ 0.000000] x86/fpu: xstate_offset[2]: 576, xstate_sizes[2]: 256 [ 0.000000] x86/fpu: Supporting XSAVE feature 0x01: 'x87 floating point registers' [ 0.000000] x86/fpu: Supporting XSAVE feature 0x02: 'SSE registers' [ 0.000000] x86/fpu: Supporting XSAVE feature 0x04: 'AVX registers' [ 0.000000] x86/fpu: Enabled xstate features 0x7, context size is 832 bytes, using 'standard' format. [ 0.000000] x86/fpu: Using 'eager' FPU context switches. [ 0.000000] e820: BIOS-provided physical RAM map: [ 0.000000] BIOS-e820: [mem 0x0000000000000000-0x000000000009fbff] usable [ 0.000000] BIOS-e820: [mem 0x000000000009fc00-0x000000000009ffff] reserved [ 0.000000] BIOS-e820: [mem 0x00000000000f0000-0x00000000000fffff] reserved [ 0.000000] BIOS-e820: [mem 0x0000000000100000-0x00000000bfffcfff] usable [ 0.000000] BIOS-e820: [mem 0x00000000bfffd000-0x00000000bfffffff] reserved [ 0.000000] BIOS-e820: [mem 0x00000000fffbc000-0x00000000ffffffff] reserved [ 0.000000] BIOS-e820: [mem 0x0000000100000000-0x000000021fffffff] usable [ 0.000000] bootconsole [earlyser0] enabled [ 0.000000] NX (Execute Disable) protection: active [ 0.000000] SMBIOS 2.4 present. [ 0.000000] Hypervisor detected: KVM [ 0.000000] e820: last_pfn = 0x220000 max_arch_pfn = 0x400000000 [ 0.000000] x86/PAT: Configuration [0-7]: WB WC UC- UC WB WC UC- WT [ 0.000000] e820: last_pfn = 0xbfffd max_arch_pfn = 0x400000000 [ 0.000000] found SMP MP-table at [mem 0x000f32c0-0x000f32cf] mapped at [ffff8800000f32c0] [ 0.000000] Scanning 1 areas for low memory corruption [ 0.000000] Using GB pages for direct mapping [ 0.000000] ACPI: Early table checksum verification disabled [ 0.000000] ACPI: RSDP 0x00000000000F3090 000014 (v00 Google) [ 0.000000] ACPI: RSDT 0x00000000BFFFDC70 000034 (v01 Google GOOGRSDT 00000001 GOOG 00000001) [ 0.000000] ACPI: FACP 0x00000000BFFFFF00 0000F4 (v02 Google GOOGFACP 00000001 GOOG 00000001) [ 0.000000] ACPI: DSDT 0x00000000BFFFDCB0 0017B2 (v01 Google GOOGDSDT 00000001 GOOG 00000001) [ 0.000000] ACPI: FACS 0x00000000BFFFFEC0 000040 [ 0.000000] ACPI: FACS 0x00000000BFFFFEC0 000040 [ 0.000000] ACPI: SSDT 0x00000000BFFFF590 000930 (v01 Google GOOGSSDT 00000001 GOOG 00000001) [ 0.000000] ACPI: APIC 0x00000000BFFFF4A0 000076 (v01 Google GOOGAPIC 00000001 GOOG 00000001) [ 0.000000] ACPI: WAET 0x00000000BFFFF470 000028 (v01 Google GOOGWAET 00000001 GOOG 00000001) [ 0.000000] kvm-clock: Using msrs 4b564d01 and 4b564d00 [ 0.000000] kvm-clock: cpu 0, msr 2:1fffd001, primary cpu clock [ 0.000000] kvm-clock: using sched offset of 1188569034 cycles [ 0.000000] clocksource: kvm-clock: mask: 0xffffffffffffffff max_cycles: 0x1cd42e4dffb, max_idle_ns: 881590591483 ns [ 0.000000] Zone ranges: [ 0.000000] DMA [mem 0x0000000000001000-0x0000000000ffffff] [ 0.000000] DMA32 [mem 0x0000000001000000-0x00000000ffffffff] [ 0.000000] Normal [mem 0x0000000100000000-0x000000021fffffff] [ 0.000000] Movable zone start for each node [ 0.000000] Early memory node ranges [ 0.000000] node 0: [mem 0x0000000000001000-0x000000000009efff] [ 0.000000] node 0: [mem 0x0000000000100000-0x00000000bfffcfff] [ 0.000000] node 0: [mem 0x0000000100000000-0x000000021fffffff] [ 0.000000] Initmem setup node 0 [mem 0x0000000000001000-0x000000021fffffff] [ 0.000000] kasan: KernelAddressSanitizer initialized [ 0.000000] ACPI: PM-Timer IO Port: 0xb008 [ 0.000000] ACPI: LAPIC_NMI (acpi_id[0xff] dfl dfl lint[0x1]) [ 0.000000] IOAPIC[0]: apic_id 0, version 17, address 0xfec00000, GSI 0-23 [ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 5 global_irq 5 high level) [ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 9 global_irq 9 high level) [ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 10 global_irq 10 high level) [ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 11 global_irq 11 high level) [ 0.000000] Using ACPI (MADT) for SMP configuration information [ 0.000000] smpboot: Allowing 2 CPUs, 0 hotplug CPUs [ 0.000000] PM: Registered nosave memory: [mem 0x00000000-0x00000fff] [ 0.000000] PM: Registered nosave memory: [mem 0x0009f000-0x0009ffff] [ 0.000000] PM: Registered nosave memory: [mem 0x000a0000-0x000effff] [ 0.000000] PM: Registered nosave memory: [mem 0x000f0000-0x000fffff] [ 0.000000] PM: Registered nosave memory: [mem 0xbfffd000-0xbfffffff] [ 0.000000] PM: Registered nosave memory: [mem 0xc0000000-0xfffbbfff] [ 0.000000] PM: Registered nosave memory: [mem 0xfffbc000-0xffffffff] [ 0.000000] e820: [mem 0xc0000000-0xfffbbfff] available for PCI devices [ 0.000000] Booting paravirtualized kernel on KVM [ 0.000000] clocksource: refined-jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604462750000 ns [ 0.000000] setup_percpu: NR_CPUS:64 nr_cpumask_bits:64 nr_cpu_ids:2 nr_node_ids:1 [ 0.000000] PERCPU: Embedded 42 pages/cpu @ffff8801db200000 s132680 r8192 d31160 u1048576 [ 0.000000] Built 1 zonelists in Zone order, mobility grouping on. Total pages: 1935238 [ 0.000000] Kernel command line: BOOT_IMAGE=/vmlinuz root=/dev/sda1 console=ttyS0 earlyprintk=serial vsyscall=native rodata=n ftrace_dump_on_oops=orig_cpu oops=panic panic_on_warn=1 nmi_watchdog=panic panic=86400 workqueue.watchdog_thresh=120 [ 0.000000] PID hash table entries: 4096 (order: 3, 32768 bytes) [ 0.000000] Dentry cache hash table entries: 1048576 (order: 11, 8388608 bytes) [ 0.000000] Inode-cache hash table entries: 524288 (order: 10, 4194304 bytes) [ 0.000000] ================================================================== [ 0.000000] BUG: KASAN: stack-out-of-bounds in reserve_bootmem_region+0xdf/0x130 [ 0.000000] Write of size 8 at addr ffffea0000047ce0 by task swapper/0 [ 0.000000] [ 0.000000] CPU: 0 PID: 0 Comm: swapper Not tainted 4.4.108-g55b3b8c #7 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 672e8dcd7835dc4d ffffffff84207ce8 ffffffff81d02e5d [ 0.000000] ffffea0000047ce0 ffffea0000047ce0 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d20 ffffffff814fb329 ffffea0000047ce0 [ 0.000000] Call Trace: [ 0.000000] [] dump_stack+0xc1/0x124 [ 0.000000] [] print_address_description+0x189/0x260 [ 0.000000] [] kasan_report+0x285/0x370 [ 0.000000] [] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] free_all_bootmem+0xf2/0x24d [ 0.000000] [] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [] ? dmar_table_detect+0x60/0x60 [ 0.000000] [] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [] mem_init+0x13/0x74 [ 0.000000] [] start_kernel+0x31d/0x6e9 [ 0.000000] [] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [] x86_64_start_kernel+0x140/0x163 [ 0.000000] [ 0.000000] [ 0.000000] Memory state around the buggy address: [ 0.000000] ffffea0000047b80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ffffea0000047c00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] >ffffea0000047c80: 00 00 00 00 00 00 f1 f1 f1 f1 00 00 f2 f2 00 00 [ 0.000000] ^ [ 0.000000] ffffea0000047d00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ffffea0000047d80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ================================================================== [ 0.000000] Disabling lock debugging due to kernel taint [ 0.000000] Kernel panic - not syncing: panic_on_warn set ... [ 0.000000] [ 0.000000] CPU: 0 PID: 0 Comm: swapper Tainted: G B 4.4.108-g55b3b8c #7 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 672e8dcd7835dc4d ffffffff84207c40 ffffffff81d02e5d [ 0.000000] ffffffff83fb34b5 ffffffff84207d18 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d08 ffffffff81417caa 0000000041b58ab3 [ 0.000000] Call Trace: [ 0.000000] [] dump_stack+0xc1/0x124 [ 0.000000] [] panic+0x1aa/0x388 [ 0.000000] [] ? percpu_up_read.constprop.45+0xe1/0xe1 [ 0.000000] [] kasan_end_report+0x50/0x50 [ 0.000000] [] kasan_report+0x15c/0x370 [ 0.000000] [] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] free_all_bootmem+0xf2/0x24d [ 0.000000] [] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [] ? dmar_table_detect+0x60/0x60 [ 0.000000] [] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [] mem_init+0x13/0x74 [ 0.000000] [] start_kernel+0x31d/0x6e9 [ 0.000000] [] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [] x86_64_start_kernel+0x140/0x163 [ 0.000000] Rebooting in 86400 seconds.. [ 0.000000] ACPI MEMORY or I/O RESET_REG. SeaBIOS (version 1.8.2-20171012_061934-google) Total RAM Size = 0x00000001e0000000 = 7680 MiB CPUs found: 2 Max CPUs supported: 2 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 0x000f3050: PCHS=0/0/0 translation=lba LCHS=520/128/63 s=4194304 Booting from Hard Disk 0... early console in decompress_kernel input_data: 0x00000000039be26e input_len: 0x0000000001424e03 output: 0x0000000001000000 output_len: 0x0000000003dcea40 run_size: 0x0000000005504000 Decompressing Linux... Parsing ELF... done. Booting the kernel. [ 0.000000] Initializing cgroup subsys cpuset [ 0.000000] Initializing cgroup subsys cpu [ 0.000000] Initializing cgroup subsys cpuacct [ 0.000000] Initializing cgroup subsys schedtune [ 0.000000] Linux version 4.4.108-g55b3b8c (syzkaller@ci) (gcc version 7.1.1 20170620 (GCC) ) #7 SMP PREEMPT Fri Dec 29 21:50:38 UTC 2017 [ 0.000000] Command line: BOOT_IMAGE=/vmlinuz root=/dev/sda1 console=ttyS0 earlyprintk=serial vsyscall=native rodata=n ftrace_dump_on_oops=orig_cpu oops=panic panic_on_warn=1 nmi_watchdog=panic panic=86400 workqueue.watchdog_thresh=120 [ 0.000000] KERNEL supported cpus: [ 0.000000] Intel GenuineIntel [ 0.000000] AMD AuthenticAMD [ 0.000000] Centaur CentaurHauls [ 0.000000] x86/fpu: xstate_offset[2]: 576, xstate_sizes[2]: 256 [ 0.000000] x86/fpu: Supporting XSAVE feature 0x01: 'x87 floating point registers' [ 0.000000] x86/fpu: Supporting XSAVE feature 0x02: 'SSE registers' [ 0.000000] x86/fpu: Supporting XSAVE feature 0x04: 'AVX registers' [ 0.000000] x86/fpu: Enabled xstate features 0x7, context size is 832 bytes, using 'standard' format. [ 0.000000] x86/fpu: Using 'eager' FPU context switches. [ 0.000000] e820: BIOS-provided physical RAM map: [ 0.000000] BIOS-e820: [mem 0x0000000000000000-0x000000000009fbff] usable [ 0.000000] BIOS-e820: [mem 0x000000000009fc00-0x000000000009ffff] reserved [ 0.000000] BIOS-e820: [mem 0x00000000000f0000-0x00000000000fffff] reserved [ 0.000000] BIOS-e820: [mem 0x0000000000100000-0x00000000bfffcfff] usable [ 0.000000] BIOS-e820: [mem 0x00000000bfffd000-0x00000000bfffffff] reserved [ 0.000000] BIOS-e820: [mem 0x00000000fffbc000-0x00000000ffffffff] reserved [ 0.000000] BIOS-e820: [mem 0x0000000100000000-0x000000021fffffff] usable [ 0.000000] bootconsole [earlyser0] enabled [ 0.000000] NX (Execute Disable) protection: active [ 0.000000] SMBIOS 2.4 present. [ 0.000000] Hypervisor detected: KVM [ 0.000000] e820: last_pfn = 0x220000 max_arch_pfn = 0x400000000 [ 0.000000] x86/PAT: Configuration [0-7]: WB WC UC- UC WB WC UC- WT [ 0.000000] e820: last_pfn = 0xbfffd max_arch_pfn = 0x400000000 [ 0.000000] found SMP MP-table at [mem 0x000f32c0-0x000f32cf] mapped at [ffff8800000f32c0] [ 0.000000] Scanning 1 areas for low memory corruption [ 0.000000] Using GB pages for direct mapping [ 0.000000] ACPI: Early table checksum verification disabled [ 0.000000] ACPI: RSDP 0x00000000000F3090 000014 (v00 Google) [ 0.000000] ACPI: RSDT 0x00000000BFFFDC70 000034 (v01 Google GOOGRSDT 00000001 GOOG 00000001) [ 0.000000] ACPI: FACP 0x00000000BFFFFF00 0000F4 (v02 Google GOOGFACP 00000001 GOOG 00000001) [ 0.000000] ACPI: DSDT 0x00000000BFFFDCB0 0017B2 (v01 Google GOOGDSDT 00000001 GOOG 00000001) [ 0.000000] ACPI: FACS 0x00000000BFFFFEC0 000040 [ 0.000000] ACPI: FACS 0x00000000BFFFFEC0 000040 [ 0.000000] ACPI: SSDT 0x00000000BFFFF590 000930 (v01 Google GOOGSSDT 00000001 GOOG 00000001) [ 0.000000] ACPI: APIC 0x00000000BFFFF4A0 000076 (v01 Google GOOGAPIC 00000001 GOOG 00000001) [ 0.000000] ACPI: WAET 0x00000000BFFFF470 000028 (v01 Google GOOGWAET 00000001 GOOG 00000001) [ 0.000000] kvm-clock: Using msrs 4b564d01 and 4b564d00 [ 0.000000] kvm-clock: cpu 0, msr 2:1fffd001, primary cpu clock [ 0.000000] kvm-clock: using sched offset of 1258225336 cycles [ 0.000000] clocksource: kvm-clock: mask: 0xffffffffffffffff max_cycles: 0x1cd42e4dffb, max_idle_ns: 881590591483 ns [ 0.000000] Zone ranges: [ 0.000000] DMA [mem 0x0000000000001000-0x0000000000ffffff] [ 0.000000] DMA32 [mem 0x0000000001000000-0x00000000ffffffff] [ 0.000000] Normal [mem 0x0000000100000000-0x000000021fffffff] [ 0.000000] Movable zone start for each node [ 0.000000] Early memory node ranges [ 0.000000] node 0: [mem 0x0000000000001000-0x000000000009efff] [ 0.000000] node 0: [mem 0x0000000000100000-0x00000000bfffcfff] [ 0.000000] node 0: [mem 0x0000000100000000-0x000000021fffffff] [ 0.000000] Initmem setup node 0 [mem 0x0000000000001000-0x000000021fffffff] [ 0.000000] kasan: KernelAddressSanitizer initialized [ 0.000000] ACPI: PM-Timer IO Port: 0xb008 [ 0.000000] ACPI: LAPIC_NMI (acpi_id[0xff] dfl dfl lint[0x1]) [ 0.000000] IOAPIC[0]: apic_id 0, version 17, address 0xfec00000, GSI 0-23 [ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 5 global_irq 5 high level) [ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 9 global_irq 9 high level) [ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 10 global_irq 10 high level) [ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 11 global_irq 11 high level) [ 0.000000] Using ACPI (MADT) for SMP configuration information [ 0.000000] smpboot: Allowing 2 CPUs, 0 hotplug CPUs [ 0.000000] PM: Registered nosave memory: [mem 0x00000000-0x00000fff] [ 0.000000] PM: Registered nosave memory: [mem 0x0009f000-0x0009ffff] [ 0.000000] PM: Registered nosave memory: [mem 0x000a0000-0x000effff] [ 0.000000] PM: Registered nosave memory: [mem 0x000f0000-0x000fffff] [ 0.000000] PM: Registered nosave memory: [mem 0xbfffd000-0xbfffffff] [ 0.000000] PM: Registered nosave memory: [mem 0xc0000000-0xfffbbfff] [ 0.000000] PM: Registered nosave memory: [mem 0xfffbc000-0xffffffff] [ 0.000000] e820: [mem 0xc0000000-0xfffbbfff] available for PCI devices [ 0.000000] Booting paravirtualized kernel on KVM [ 0.000000] clocksource: refined-jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604462750000 ns [ 0.000000] setup_percpu: NR_CPUS:64 nr_cpumask_bits:64 nr_cpu_ids:2 nr_node_ids:1 [ 0.000000] PERCPU: Embedded 42 pages/cpu @ffff8801db200000 s132680 r8192 d31160 u1048576 [ 0.000000] Built 1 zonelists in Zone order, mobility grouping on. Total pages: 1935238 [ 0.000000] Kernel command line: BOOT_IMAGE=/vmlinuz root=/dev/sda1 console=ttyS0 earlyprintk=serial vsyscall=native rodata=n ftrace_dump_on_oops=orig_cpu oops=panic panic_on_warn=1 nmi_watchdog=panic panic=86400 workqueue.watchdog_thresh=120 [ 0.000000] PID hash table entries: 4096 (order: 3, 32768 bytes) [ 0.000000] Dentry cache hash table entries: 1048576 (order: 11, 8388608 bytes) [ 0.000000] Inode-cache hash table entries: 524288 (order: 10, 4194304 bytes) [ 0.000000] ================================================================== [ 0.000000] BUG: KASAN: stack-out-of-bounds in reserve_bootmem_region+0xdf/0x130 [ 0.000000] Write of size 8 at addr ffffea0000047ce0 by task swapper/0 [ 0.000000] [ 0.000000] CPU: 0 PID: 0 Comm: swapper Not tainted 4.4.108-g55b3b8c #7 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 705cd3ff8164227f ffffffff84207ce8 ffffffff81d02e5d [ 0.000000] ffffea0000047ce0 ffffea0000047ce0 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d20 ffffffff814fb329 ffffea0000047ce0 [ 0.000000] Call Trace: [ 0.000000] [] dump_stack+0xc1/0x124 [ 0.000000] [] print_address_description+0x189/0x260 [ 0.000000] [] kasan_report+0x285/0x370 [ 0.000000] [] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] free_all_bootmem+0xf2/0x24d [ 0.000000] [] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [] ? dmar_table_detect+0x60/0x60 [ 0.000000] [] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [] mem_init+0x13/0x74 [ 0.000000] [] start_kernel+0x31d/0x6e9 [ 0.000000] [] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [] x86_64_start_kernel+0x140/0x163 [ 0.000000] [ 0.000000] [ 0.000000] Memory state around the buggy address: [ 0.000000] ffffea0000047b80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ffffea0000047c00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] >ffffea0000047c80: 00 00 00 00 00 00 f1 f1 f1 f1 00 00 f2 f2 00 00 [ 0.000000] ^ [ 0.000000] ffffea0000047d00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ffffea0000047d80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ================================================================== [ 0.000000] Disabling lock debugging due to kernel taint [ 0.000000] Kernel panic - not syncing: panic_on_warn set ... [ 0.000000] [ 0.000000] CPU: 0 PID: 0 Comm: swapper Tainted: G B 4.4.108-g55b3b8c #7 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 705cd3ff8164227f ffffffff84207c40 ffffffff81d02e5d [ 0.000000] ffffffff83fb34b5 ffffffff84207d18 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d08 ffffffff81417caa 0000000041b58ab3 [ 0.000000] Call Trace: [ 0.000000] [] dump_stack+0xc1/0x124 [ 0.000000] [] panic+0x1aa/0x388 [ 0.000000] [] ? percpu_up_read.constprop.45+0xe1/0xe1 [ 0.000000] [] kasan_end_report+0x50/0x50 [ 0.000000] [] kasan_report+0x15c/0x370 [ 0.000000] [] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] free_all_bootmem+0xf2/0x24d [ 0.000000] [] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [] ? dmar_table_detect+0x60/0x60 [ 0.000000] [] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [] mem_init+0x13/0x74 [ 0.000000] [] start_kernel+0x31d/0x6e9 [ 0.000000] [] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [] x86_64_start_kernel+0x140/0x163 [ 0.000000] Rebooting in 86400 seconds.. [ 0.000000] ACPI MEMORY or I/O RESET_REG. SeaBIOS (version 1.8.2-20171012_061934-google) Total RAM Size = 0x00000001e0000000 = 7680 MiB CPUs found: 2 Max CPUs supported: 2 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 0x000f3050: PCHS=0/0/0 translation=lba LCHS=520/128/63 s=4194304 Booting from Hard Disk 0... early console in decompress_kernel input_data: 0x00000000039be26e input_len: 0x0000000001424e03 output: 0x0000000001000000 output_len: 0x0000000003dcea40 run_size: 0x0000000005504000 Decompressing Linux... Parsing ELF... done. Booting the kernel. [ 0.000000] Initializing cgroup subsys cpuset [ 0.000000] Initializing cgroup subsys cpu [ 0.000000] Initializing cgroup subsys cpuacct [ 0.000000] Initializing cgroup subsys schedtune [ 0.000000] Linux version 4.4.108-g55b3b8c (syzkaller@ci) (gcc version 7.1.1 20170620 (GCC) ) #7 SMP PREEMPT Fri Dec 29 21:50:38 UTC 2017 [ 0.000000] Command line: BOOT_IMAGE=/vmlinuz root=/dev/sda1 console=ttyS0 earlyprintk=serial vsyscall=native rodata=n ftrace_dump_on_oops=orig_cpu oops=panic panic_on_warn=1 nmi_watchdog=panic panic=86400 workqueue.watchdog_thresh=120 [ 0.000000] KERNEL supported cpus: [ 0.000000] Intel GenuineIntel [ 0.000000] AMD AuthenticAMD [ 0.000000] Centaur CentaurHauls [ 0.000000] x86/fpu: xstate_offset[2]: 576, xstate_sizes[2]: 256 [ 0.000000] x86/fpu: Supporting XSAVE feature 0x01: 'x87 floating point registers' [ 0.000000] x86/fpu: Supporting XSAVE feature 0x02: 'SSE registers' [ 0.000000] x86/fpu: Supporting XSAVE feature 0x04: 'AVX registers' [ 0.000000] x86/fpu: Enabled xstate features 0x7, context size is 832 bytes, using 'standard' format. [ 0.000000] x86/fpu: Using 'eager' FPU context switches. [ 0.000000] e820: BIOS-provided physical RAM map: [ 0.000000] BIOS-e820: [mem 0x0000000000000000-0x000000000009fbff] usable [ 0.000000] BIOS-e820: [mem 0x000000000009fc00-0x000000000009ffff] reserved [ 0.000000] BIOS-e820: [mem 0x00000000000f0000-0x00000000000fffff] reserved [ 0.000000] BIOS-e820: [mem 0x0000000000100000-0x00000000bfffcfff] usable [ 0.000000] BIOS-e820: [mem 0x00000000bfffd000-0x00000000bfffffff] reserved [ 0.000000] BIOS-e820: [mem 0x00000000fffbc000-0x00000000ffffffff] reserved [ 0.000000] BIOS-e820: [mem 0x0000000100000000-0x000000021fffffff] usable [ 0.000000] bootconsole [earlyser0] enabled [ 0.000000] NX (Execute Disable) protection: active [ 0.000000] SMBIOS 2.4 present. [ 0.000000] Hypervisor detected: KVM [ 0.000000] e820: last_pfn = 0x220000 max_arch_pfn = 0x400000000 [ 0.000000] x86/PAT: Configuration [0-7]: WB WC UC- UC WB WC UC- WT [ 0.000000] e820: last_pfn = 0xbfffd max_arch_pfn = 0x400000000 [ 0.000000] found SMP MP-table at [mem 0x000f32c0-0x000f32cf] mapped at [ffff8800000f32c0] [ 0.000000] Scanning 1 areas for low memory corruption [ 0.000000] Using GB pages for direct mapping [ 0.000000] ACPI: Early table checksum verification disabled [ 0.000000] ACPI: RSDP 0x00000000000F3090 000014 (v00 Google) [ 0.000000] ACPI: RSDT 0x00000000BFFFDC70 000034 (v01 Google GOOGRSDT 00000001 GOOG 00000001) [ 0.000000] ACPI: FACP 0x00000000BFFFFF00 0000F4 (v02 Google GOOGFACP 00000001 GOOG 00000001) [ 0.000000] ACPI: DSDT 0x00000000BFFFDCB0 0017B2 (v01 Google GOOGDSDT 00000001 GOOG 00000001) [ 0.000000] ACPI: FACS 0x00000000BFFFFEC0 000040 [ 0.000000] ACPI: FACS 0x00000000BFFFFEC0 000040 [ 0.000000] ACPI: SSDT 0x00000000BFFFF590 000930 (v01 Google GOOGSSDT 00000001 GOOG 00000001) [ 0.000000] ACPI: APIC 0x00000000BFFFF4A0 000076 (v01 Google GOOGAPIC 00000001 GOOG 00000001) [ 0.000000] ACPI: WAET 0x00000000BFFFF470 000028 (v01 Google GOOGWAET 00000001 GOOG 00000001) [ 0.000000] kvm-clock: Using msrs 4b564d01 and 4b564d00 [ 0.000000] kvm-clock: cpu 0, msr 2:1fffd001, primary cpu clock [ 0.000000] kvm-clock: using sched offset of 1188151281 cycles [ 0.000000] clocksource: kvm-clock: mask: 0xffffffffffffffff max_cycles: 0x1cd42e4dffb, max_idle_ns: 881590591483 ns [ 0.000000] Zone ranges: [ 0.000000] DMA [mem 0x0000000000001000-0x0000000000ffffff] [ 0.000000] DMA32 [mem 0x0000000001000000-0x00000000ffffffff] [ 0.000000] Normal [mem 0x0000000100000000-0x000000021fffffff] [ 0.000000] Movable zone start for each node [ 0.000000] Early memory node ranges [ 0.000000] node 0: [mem 0x0000000000001000-0x000000000009efff] [ 0.000000] node 0: [mem 0x0000000000100000-0x00000000bfffcfff] [ 0.000000] node 0: [mem 0x0000000100000000-0x000000021fffffff] [ 0.000000] Initmem setup node 0 [mem 0x0000000000001000-0x000000021fffffff] [ 0.000000] kasan: KernelAddressSanitizer initialized [ 0.000000] ACPI: PM-Timer IO Port: 0xb008 [ 0.000000] ACPI: LAPIC_NMI (acpi_id[0xff] dfl dfl lint[0x1]) [ 0.000000] IOAPIC[0]: apic_id 0, version 17, address 0xfec00000, GSI 0-23 [ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 5 global_irq 5 high level) [ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 9 global_irq 9 high level) [ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 10 global_irq 10 high level) [ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 11 global_irq 11 high level) [ 0.000000] Using ACPI (MADT) for SMP configuration information [ 0.000000] smpboot: Allowing 2 CPUs, 0 hotplug CPUs [ 0.000000] PM: Registered nosave memory: [mem 0x00000000-0x00000fff] [ 0.000000] PM: Registered nosave memory: [mem 0x0009f000-0x0009ffff] [ 0.000000] PM: Registered nosave memory: [mem 0x000a0000-0x000effff] [ 0.000000] PM: Registered nosave memory: [mem 0x000f0000-0x000fffff] [ 0.000000] PM: Registered nosave memory: [mem 0xbfffd000-0xbfffffff] [ 0.000000] PM: Registered nosave memory: [mem 0xc0000000-0xfffbbfff] [ 0.000000] PM: Registered nosave memory: [mem 0xfffbc000-0xffffffff] [ 0.000000] e820: [mem 0xc0000000-0xfffbbfff] available for PCI devices [ 0.000000] Booting paravirtualized kernel on KVM [ 0.000000] clocksource: refined-jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604462750000 ns [ 0.000000] setup_percpu: NR_CPUS:64 nr_cpumask_bits:64 nr_cpu_ids:2 nr_node_ids:1 [ 0.000000] PERCPU: Embedded 42 pages/cpu @ffff8801db200000 s132680 r8192 d31160 u1048576 [ 0.000000] Built 1 zonelists in Zone order, mobility grouping on. Total pages: 1935238 [ 0.000000] Kernel command line: BOOT_IMAGE=/vmlinuz root=/dev/sda1 console=ttyS0 earlyprintk=serial vsyscall=native rodata=n ftrace_dump_on_oops=orig_cpu oops=panic panic_on_warn=1 nmi_watchdog=panic panic=86400 workqueue.watchdog_thresh=120 [ 0.000000] PID hash table entries: 4096 (order: 3, 32768 bytes) [ 0.000000] Dentry cache hash table entries: 1048576 (order: 11, 8388608 bytes) [ 0.000000] Inode-cache hash table entries: 524288 (order: 10, 4194304 bytes) [ 0.000000] ================================================================== [ 0.000000] BUG: KASAN: stack-out-of-bounds in reserve_bootmem_region+0xdf/0x130 [ 0.000000] Write of size 8 at addr ffffea0000047ce0 by task swapper/0 [ 0.000000] [ 0.000000] CPU: 0 PID: 0 Comm: swapper Not tainted 4.4.108-g55b3b8c #7 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 6726e35a782e31da ffffffff84207ce8 ffffffff81d02e5d [ 0.000000] ffffea0000047ce0 ffffea0000047ce0 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d20 ffffffff814fb329 ffffea0000047ce0 [ 0.000000] Call Trace: [ 0.000000] [] dump_stack+0xc1/0x124 [ 0.000000] [] print_address_description+0x189/0x260 [ 0.000000] [] kasan_report+0x285/0x370 [ 0.000000] [] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] free_all_bootmem+0xf2/0x24d [ 0.000000] [] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [] ? dmar_table_detect+0x60/0x60 [ 0.000000] [] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [] mem_init+0x13/0x74 [ 0.000000] [] start_kernel+0x31d/0x6e9 [ 0.000000] [] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [] x86_64_start_kernel+0x140/0x163 [ 0.000000] [ 0.000000] [ 0.000000] Memory state around the buggy address: [ 0.000000] ffffea0000047b80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ffffea0000047c00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] >ffffea0000047c80: 00 00 00 00 00 00 f1 f1 f1 f1 00 00 f2 f2 00 00 [ 0.000000] ^ [ 0.000000] ffffea0000047d00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ffffea0000047d80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ================================================================== [ 0.000000] Disabling lock debugging due to kernel taint [ 0.000000] Kernel panic - not syncing: panic_on_warn set ... [ 0.000000] [ 0.000000] CPU: 0 PID: 0 Comm: swapper Tainted: G B 4.4.108-g55b3b8c #7 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 6726e35a782e31da ffffffff84207c40 ffffffff81d02e5d [ 0.000000] ffffffff83fb34b5 ffffffff84207d18 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d08 ffffffff81417caa 0000000041b58ab3 [ 0.000000] Call Trace: [ 0.000000] [] dump_stack+0xc1/0x124 [ 0.000000] [] panic+0x1aa/0x388 [ 0.000000] [] ? percpu_up_read.constprop.45+0xe1/0xe1 [ 0.000000] [] kasan_end_report+0x50/0x50 [ 0.000000] [] kasan_report+0x15c/0x370 [ 0.000000] [] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] free_all_bootmem+0xf2/0x24d [ 0.000000] [] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [] ? dmar_table_detect+0x60/0x60 [ 0.000000] [] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [] mem_init+0x13/0x74 [ 0.000000] [] start_kernel+0x31d/0x6e9 [ 0.000000] [] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [] x86_64_start_kernel+0x140/0x163 [ 0.000000] Rebooting in 86400 seconds.. [ 0.000000] ACPI MEMORY or I/O RESET_REG. SeaBIOS (version 1.8.2-20171012_061934-google) Total RAM Size = 0x00000001e0000000 = 7680 MiB CPUs found: 2 Max CPUs supported: 2 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 0x000f3050: PCHS=0/0/0 translation=lba LCHS=520/128/63 s=4194304 Booting from Hard Disk 0... early console in decompress_kernel input_data: 0x00000000039be26e input_len: 0x0000000001424e03 output: 0x0000000001000000 output_len: 0x0000000003dcea40 run_size: 0x0000000005504000 Decompressing Linux... Parsing ELF... done. Booting the kernel. [ 0.000000] Initializing cgroup subsys cpuset [ 0.000000] Initializing cgroup subsys cpu [ 0.000000] Initializing cgroup subsys cpuacct [ 0.000000] Initializing cgroup subsys schedtune [ 0.000000] Linux version 4.4.108-g55b3b8c (syzkaller@ci) (gcc version 7.1.1 20170620 (GCC) ) #7 SMP PREEMPT Fri Dec 29 21:50:38 UTC 2017 [ 0.000000] Command line: BOOT_IMAGE=/vmlinuz root=/dev/sda1 console=ttyS0 earlyprintk=serial vsyscall=native rodata=n ftrace_dump_on_oops=orig_cpu oops=panic panic_on_warn=1 nmi_watchdog=panic panic=86400 workqueue.watchdog_thresh=120 [ 0.000000] KERNEL supported cpus: [ 0.000000] Intel GenuineIntel [ 0.000000] AMD AuthenticAMD [ 0.000000] Centaur CentaurHauls [ 0.000000] x86/fpu: xstate_offset[2]: 576, xstate_sizes[2]: 256 [ 0.000000] x86/fpu: Supporting XSAVE feature 0x01: 'x87 floating point registers' [ 0.000000] x86/fpu: Supporting XSAVE feature 0x02: 'SSE registers' [ 0.000000] x86/fpu: Supporting XSAVE feature 0x04: 'AVX registers' [ 0.000000] x86/fpu: Enabled xstate features 0x7, context size is 832 bytes, using 'standard' format. [ 0.000000] x86/fpu: Using 'eager' FPU context switches. [ 0.000000] e820: BIOS-provided physical RAM map: [ 0.000000] BIOS-e820: [mem 0x0000000000000000-0x000000000009fbff] usable [ 0.000000] BIOS-e820: [mem 0x000000000009fc00-0x000000000009ffff] reserved [ 0.000000] BIOS-e820: [mem 0x00000000000f0000-0x00000000000fffff] reserved [ 0.000000] BIOS-e820: [mem 0x0000000000100000-0x00000000bfffcfff] usable [ 0.000000] BIOS-e820: [mem 0x00000000bfffd000-0x00000000bfffffff] reserved [ 0.000000] BIOS-e820: [mem 0x00000000fffbc000-0x00000000ffffffff] reserved [ 0.000000] BIOS-e820: [mem 0x0000000100000000-0x000000021fffffff] usable [ 0.000000] bootconsole [earlyser0] enabled [ 0.000000] NX (Execute Disable) protection: active [ 0.000000] SMBIOS 2.4 present. [ 0.000000] Hypervisor detected: KVM [ 0.000000] e820: last_pfn = 0x220000 max_arch_pfn = 0x400000000 [ 0.000000] x86/PAT: Configuration [0-7]: WB WC UC- UC WB WC UC- WT [ 0.000000] e820: last_pfn = 0xbfffd max_arch_pfn = 0x400000000 [ 0.000000] found SMP MP-table at [mem 0x000f32c0-0x000f32cf] mapped at [ffff8800000f32c0] [ 0.000000] Scanning 1 areas for low memory corruption [ 0.000000] Using GB pages for direct mapping [ 0.000000] ACPI: Early table checksum verification disabled [ 0.000000] ACPI: RSDP 0x00000000000F3090 000014 (v00 Google) [ 0.000000] ACPI: RSDT 0x00000000BFFFDC70 000034 (v01 Google GOOGRSDT 00000001 GOOG 00000001) [ 0.000000] ACPI: FACP 0x00000000BFFFFF00 0000F4 (v02 Google GOOGFACP 00000001 GOOG 00000001) [ 0.000000] ACPI: DSDT 0x00000000BFFFDCB0 0017B2 (v01 Google GOOGDSDT 00000001 GOOG 00000001) [ 0.000000] ACPI: FACS 0x00000000BFFFFEC0 000040 [ 0.000000] ACPI: FACS 0x00000000BFFFFEC0 000040 [ 0.000000] ACPI: SSDT 0x00000000BFFFF590 000930 (v01 Google GOOGSSDT 00000001 GOOG 00000001) [ 0.000000] ACPI: APIC 0x00000000BFFFF4A0 000076 (v01 Google GOOGAPIC 00000001 GOOG 00000001) [ 0.000000] ACPI: WAET 0x00000000BFFFF470 000028 (v01 Google GOOGWAET 00000001 GOOG 00000001) [ 0.000000] kvm-clock: Using msrs 4b564d01 and 4b564d00 [ 0.000000] kvm-clock: cpu 0, msr 2:1fffd001, primary cpu clock [ 0.000000] kvm-clock: using sched offset of 1241971313 cycles [ 0.000000] clocksource: kvm-clock: mask: 0xffffffffffffffff max_cycles: 0x1cd42e4dffb, max_idle_ns: 881590591483 ns [ 0.000000] Zone ranges: [ 0.000000] DMA [mem 0x0000000000001000-0x0000000000ffffff] [ 0.000000] DMA32 [mem 0x0000000001000000-0x00000000ffffffff] [ 0.000000] Normal [mem 0x0000000100000000-0x000000021fffffff] [ 0.000000] Movable zone start for each node [ 0.000000] Early memory node ranges [ 0.000000] node 0: [mem 0x0000000000001000-0x000000000009efff] [ 0.000000] node 0: [mem 0x0000000000100000-0x00000000bfffcfff] [ 0.000000] node 0: [mem 0x0000000100000000-0x000000021fffffff] [ 0.000000] Initmem setup node 0 [mem 0x0000000000001000-0x000000021fffffff] [ 0.000000] kasan: KernelAddressSanitizer initialized [ 0.000000] ACPI: PM-Timer IO Port: 0xb008 [ 0.000000] ACPI: LAPIC_NMI (acpi_id[0xff] dfl dfl lint[0x1]) [ 0.000000] IOAPIC[0]: apic_id 0, version 17, address 0xfec00000, GSI 0-23 [ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 5 global_irq 5 high level) [ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 9 global_irq 9 high level) [ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 10 global_irq 10 high level) [ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 11 global_irq 11 high level) [ 0.000000] Using ACPI (MADT) for SMP configuration information [ 0.000000] smpboot: Allowing 2 CPUs, 0 hotplug CPUs [ 0.000000] PM: Registered nosave memory: [mem 0x00000000-0x00000fff] [ 0.000000] PM: Registered nosave memory: [mem 0x0009f000-0x0009ffff] [ 0.000000] PM: Registered nosave memory: [mem 0x000a0000-0x000effff] [ 0.000000] PM: Registered nosave memory: [mem 0x000f0000-0x000fffff] [ 0.000000] PM: Registered nosave memory: [mem 0xbfffd000-0xbfffffff] [ 0.000000] PM: Registered nosave memory: [mem 0xc0000000-0xfffbbfff] [ 0.000000] PM: Registered nosave memory: [mem 0xfffbc000-0xffffffff] [ 0.000000] e820: [mem 0xc0000000-0xfffbbfff] available for PCI devices [ 0.000000] Booting paravirtualized kernel on KVM [ 0.000000] clocksource: refined-jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604462750000 ns [ 0.000000] setup_percpu: NR_CPUS:64 nr_cpumask_bits:64 nr_cpu_ids:2 nr_node_ids:1 [ 0.000000] PERCPU: Embedded 42 pages/cpu @ffff8801db200000 s132680 r8192 d31160 u1048576 [ 0.000000] Built 1 zonelists in Zone order, mobility grouping on. Total pages: 1935238 [ 0.000000] Kernel command line: BOOT_IMAGE=/vmlinuz root=/dev/sda1 console=ttyS0 earlyprintk=serial vsyscall=native rodata=n ftrace_dump_on_oops=orig_cpu oops=panic panic_on_warn=1 nmi_watchdog=panic panic=86400 workqueue.watchdog_thresh=120 [ 0.000000] PID hash table entries: 4096 (order: 3, 32768 bytes) [ 0.000000] Dentry cache hash table entries: 1048576 (order: 11, 8388608 bytes) [ 0.000000] Inode-cache hash table entries: 524288 (order: 10, 4194304 bytes) [ 0.000000] ================================================================== [ 0.000000] BUG: KASAN: stack-out-of-bounds in reserve_bootmem_region+0xdf/0x130 [ 0.000000] Write of size 8 at addr ffffea0000047ce0 by task swapper/0 [ 0.000000] [ 0.000000] CPU: 0 PID: 0 Comm: swapper Not tainted 4.4.108-g55b3b8c #7 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 6e7b6b8e7f82ba0e ffffffff84207ce8 ffffffff81d02e5d [ 0.000000] ffffea0000047ce0 ffffea0000047ce0 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d20 ffffffff814fb329 ffffea0000047ce0 [ 0.000000] Call Trace: [ 0.000000] [] dump_stack+0xc1/0x124 [ 0.000000] [] print_address_description+0x189/0x260 [ 0.000000] [] kasan_report+0x285/0x370 [ 0.000000] [] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] free_all_bootmem+0xf2/0x24d [ 0.000000] [] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [] ? dmar_table_detect+0x60/0x60 [ 0.000000] [] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [] mem_init+0x13/0x74 [ 0.000000] [] start_kernel+0x31d/0x6e9 [ 0.000000] [] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [] x86_64_start_kernel+0x140/0x163 [ 0.000000] [ 0.000000] [ 0.000000] Memory state around the buggy address: [ 0.000000] ffffea0000047b80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ffffea0000047c00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] >ffffea0000047c80: 00 00 00 00 00 00 f1 f1 f1 f1 00 00 f2 f2 00 00 [ 0.000000] ^ [ 0.000000] ffffea0000047d00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ffffea0000047d80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ================================================================== [ 0.000000] Disabling lock debugging due to kernel taint [ 0.000000] Kernel panic - not syncing: panic_on_warn set ... [ 0.000000] [ 0.000000] CPU: 0 PID: 0 Comm: swapper Tainted: G B 4.4.108-g55b3b8c #7 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 6e7b6b8e7f82ba0e ffffffff84207c40 ffffffff81d02e5d [ 0.000000] ffffffff83fb34b5 ffffffff84207d18 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d08 ffffffff81417caa 0000000041b58ab3 [ 0.000000] Call Trace: [ 0.000000] [] dump_stack+0xc1/0x124 [ 0.000000] [] panic+0x1aa/0x388 [ 0.000000] [] ? percpu_up_read.constprop.45+0xe1/0xe1 [ 0.000000] [] kasan_end_report+0x50/0x50 [ 0.000000] [] kasan_report+0x15c/0x370 [ 0.000000] [] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] free_all_bootmem+0xf2/0x24d [ 0.000000] [] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [] ? dmar_table_detect+0x60/0x60 [ 0.000000] [] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [] mem_init+0x13/0x74 [ 0.000000] [] start_kernel+0x31d/0x6e9 [ 0.000000] [] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [] x86_64_start_kernel+0x140/0x163 [ 0.000000] Rebooting in 86400 seconds.. [ 0.000000] ACPI MEMORY or I/O RESET_REG. SeaBIOS (version 1.8.2-20171012_061934-google) Total RAM Size = 0x00000001e0000000 = 7680 MiB CPUs found: 2 Max CPUs supported: 2 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 0x000f3050: PCHS=0/0/0 translation=lba LCHS=520/128/63 s=4194304 Booting from Hard Disk 0... early console in decompress_kernel input_data: 0x00000000039be26e input_len: 0x0000000001424e03 output: 0x0000000001000000 output_len: 0x0000000003dcea40 run_size: 0x0000000005504000 Decompressing Linux... Parsing ELF... done. Booting the kernel. [ 0.000000] Initializing cgroup subsys cpuset [ 0.000000] Initializing cgroup subsys cpu [ 0.000000] Initializing cgroup subsys cpuacct [ 0.000000] Initializing cgroup subsys schedtune [ 0.000000] Linux version 4.4.108-g55b3b8c (syzkaller@ci) (gcc version 7.1.1 20170620 (GCC) ) #7 SMP PREEMPT Fri Dec 29 21:50:38 UTC 2017 [ 0.000000] Command line: BOOT_IMAGE=/vmlinuz root=/dev/sda1 console=ttyS0 earlyprintk=serial vsyscall=native rodata=n ftrace_dump_on_oops=orig_cpu oops=panic panic_on_warn=1 nmi_watchdog=panic panic=86400 workqueue.watchdog_thresh=120 [ 0.000000] KERNEL supported cpus: [ 0.000000] Intel GenuineIntel [ 0.000000] AMD AuthenticAMD [ 0.000000] Centaur CentaurHauls [ 0.000000] x86/fpu: xstate_offset[2]: 576, xstate_sizes[2]: 256 [ 0.000000] x86/fpu: Supporting XSAVE feature 0x01: 'x87 floating point registers' [ 0.000000] x86/fpu: Supporting XSAVE feature 0x02: 'SSE registers' [ 0.000000] x86/fpu: Supporting XSAVE feature 0x04: 'AVX registers' [ 0.000000] x86/fpu: Enabled xstate features 0x7, context size is 832 bytes, using 'standard' format. [ 0.000000] x86/fpu: Using 'eager' FPU context switches. [ 0.000000] e820: BIOS-provided physical RAM map: [ 0.000000] BIOS-e820: [mem 0x0000000000000000-0x000000000009fbff] usable [ 0.000000] BIOS-e820: [mem 0x000000000009fc00-0x000000000009ffff] reserved [ 0.000000] BIOS-e820: [mem 0x00000000000f0000-0x00000000000fffff] reserved [ 0.000000] BIOS-e820: [mem 0x0000000000100000-0x00000000bfffcfff] usable [ 0.000000] BIOS-e820: [mem 0x00000000bfffd000-0x00000000bfffffff] reserved [ 0.000000] BIOS-e820: [mem 0x00000000fffbc000-0x00000000ffffffff] reserved [ 0.000000] BIOS-e820: [mem 0x0000000100000000-0x000000021fffffff] usable [ 0.000000] bootconsole [earlyser0] enabled [ 0.000000] NX (Execute Disable) protection: active [ 0.000000] SMBIOS 2.4 present. [ 0.000000] Hypervisor detected: KVM [ 0.000000] e820: last_pfn = 0x220000 max_arch_pfn = 0x400000000 [ 0.000000] x86/PAT: Configuration [0-7]: WB WC UC- UC WB WC UC- WT [ 0.000000] e820: last_pfn = 0xbfffd max_arch_pfn = 0x400000000 [ 0.000000] found SMP MP-table at [mem 0x000f32c0-0x000f32cf] mapped at [ffff8800000f32c0] [ 0.000000] Scanning 1 areas for low memory corruption [ 0.000000] Using GB pages for direct mapping [ 0.000000] ACPI: Early table checksum verification disabled [ 0.000000] ACPI: RSDP 0x00000000000F3090 000014 (v00 Google) [ 0.000000] ACPI: RSDT 0x00000000BFFFDC70 000034 (v01 Google GOOGRSDT 00000001 GOOG 00000001) [ 0.000000] ACPI: FACP 0x00000000BFFFFF00 0000F4 (v02 Google GOOGFACP 00000001 GOOG 00000001) [ 0.000000] ACPI: DSDT 0x00000000BFFFDCB0 0017B2 (v01 Google GOOGDSDT 00000001 GOOG 00000001) [ 0.000000] ACPI: FACS 0x00000000BFFFFEC0 000040 [ 0.000000] ACPI: FACS 0x00000000BFFFFEC0 000040 [ 0.000000] ACPI: SSDT 0x00000000BFFFF590 000930 (v01 Google GOOGSSDT 00000001 GOOG 00000001) [ 0.000000] ACPI: APIC 0x00000000BFFFF4A0 000076 (v01 Google GOOGAPIC 00000001 GOOG 00000001) [ 0.000000] ACPI: WAET 0x00000000BFFFF470 000028 (v01 Google GOOGWAET 00000001 GOOG 00000001) [ 0.000000] kvm-clock: Using msrs 4b564d01 and 4b564d00 [ 0.000000] kvm-clock: cpu 0, msr 2:1fffd001, primary cpu clock [ 0.000000] kvm-clock: using sched offset of 1178849549 cycles [ 0.000000] clocksource: kvm-clock: mask: 0xffffffffffffffff max_cycles: 0x1cd42e4dffb, max_idle_ns: 881590591483 ns [ 0.000000] Zone ranges: [ 0.000000] DMA [mem 0x0000000000001000-0x0000000000ffffff] [ 0.000000] DMA32 [mem 0x0000000001000000-0x00000000ffffffff] [ 0.000000] Normal [mem 0x0000000100000000-0x000000021fffffff] [ 0.000000] Movable zone start for each node [ 0.000000] Early memory node ranges [ 0.000000] node 0: [mem 0x0000000000001000-0x000000000009efff] [ 0.000000] node 0: [mem 0x0000000000100000-0x00000000bfffcfff] [ 0.000000] node 0: [mem 0x0000000100000000-0x000000021fffffff] [ 0.000000] Initmem setup node 0 [mem 0x0000000000001000-0x000000021fffffff] [ 0.000000] kasan: KernelAddressSanitizer initialized [ 0.000000] ACPI: PM-Timer IO Port: 0xb008 [ 0.000000] ACPI: LAPIC_NMI (acpi_id[0xff] dfl dfl lint[0x1]) [ 0.000000] IOAPIC[0]: apic_id 0, version 17, address 0xfec00000, GSI 0-23 [ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 5 global_irq 5 high level) [ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 9 global_irq 9 high level) [ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 10 global_irq 10 high level) [ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 11 global_irq 11 high level) [ 0.000000] Using ACPI (MADT) for SMP configuration information [ 0.000000] smpboot: Allowing 2 CPUs, 0 hotplug CPUs [ 0.000000] PM: Registered nosave memory: [mem 0x00000000-0x00000fff] [ 0.000000] PM: Registered nosave memory: [mem 0x0009f000-0x0009ffff] [ 0.000000] PM: Registered nosave memory: [mem 0x000a0000-0x000effff] [ 0.000000] PM: Registered nosave memory: [mem 0x000f0000-0x000fffff] [ 0.000000] PM: Registered nosave memory: [mem 0xbfffd000-0xbfffffff] [ 0.000000] PM: Registered nosave memory: [mem 0xc0000000-0xfffbbfff] [ 0.000000] PM: Registered nosave memory: [mem 0xfffbc000-0xffffffff] [ 0.000000] e820: [mem 0xc0000000-0xfffbbfff] available for PCI devices [ 0.000000] Booting paravirtualized kernel on KVM [ 0.000000] clocksource: refined-jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604462750000 ns [ 0.000000] setup_percpu: NR_CPUS:64 nr_cpumask_bits:64 nr_cpu_ids:2 nr_node_ids:1 [ 0.000000] PERCPU: Embedded 42 pages/cpu @ffff8801db200000 s132680 r8192 d31160 u1048576 [ 0.000000] Built 1 zonelists in Zone order, mobility grouping on. Total pages: 1935238 [ 0.000000] Kernel command line: BOOT_IMAGE=/vmlinuz root=/dev/sda1 console=ttyS0 earlyprintk=serial vsyscall=native rodata=n ftrace_dump_on_oops=orig_cpu oops=panic panic_on_warn=1 nmi_watchdog=panic panic=86400 workqueue.watchdog_thresh=120 [ 0.000000] PID hash table entries: 4096 (order: 3, 32768 bytes) [ 0.000000] Dentry cache hash table entries: 1048576 (order: 11, 8388608 bytes) [ 0.000000] Inode-cache hash table entries: 524288 (order: 10, 4194304 bytes) [ 0.000000] ================================================================== [ 0.000000] BUG: KASAN: stack-out-of-bounds in reserve_bootmem_region+0xdf/0x130 [ 0.000000] Write of size 8 at addr ffffea0000047ce0 by task swapper/0 [ 0.000000] [ 0.000000] CPU: 0 PID: 0 Comm: swapper Not tainted 4.4.108-g55b3b8c #7 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 65d55d0b76dcab8b ffffffff84207ce8 ffffffff81d02e5d [ 0.000000] ffffea0000047ce0 ffffea0000047ce0 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d20 ffffffff814fb329 ffffea0000047ce0 [ 0.000000] Call Trace: [ 0.000000] [] dump_stack+0xc1/0x124 [ 0.000000] [] print_address_description+0x189/0x260 [ 0.000000] [] kasan_report+0x285/0x370 [ 0.000000] [] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] free_all_bootmem+0xf2/0x24d [ 0.000000] [] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [] ? dmar_table_detect+0x60/0x60 [ 0.000000] [] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [] mem_init+0x13/0x74 [ 0.000000] [] start_kernel+0x31d/0x6e9 [ 0.000000] [] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [] x86_64_start_kernel+0x140/0x163 [ 0.000000] [ 0.000000] [ 0.000000] Memory state around the buggy address: [ 0.000000] ffffea0000047b80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ffffea0000047c00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] >ffffea0000047c80: 00 00 00 00 00 00 f1 f1 f1 f1 00 00 f2 f2 00 00 [ 0.000000] ^ [ 0.000000] ffffea0000047d00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ffffea0000047d80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ================================================================== [ 0.000000] Disabling lock debugging due to kernel taint [ 0.000000] Kernel panic - not syncing: panic_on_warn set ... [ 0.000000] [ 0.000000] CPU: 0 PID: 0 Comm: swapper Tainted: G B 4.4.108-g55b3b8c #7 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 65d55d0b76dcab8b ffffffff84207c40 ffffffff81d02e5d [ 0.000000] ffffffff83fb34b5 ffffffff84207d18 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d08 ffffffff81417caa 0000000041b58ab3 [ 0.000000] Call Trace: [ 0.000000] [] dump_stack+0xc1/0x124 [ 0.000000] [] panic+0x1aa/0x388 [ 0.000000] [] ? percpu_up_read.constprop.45+0xe1/0xe1 [ 0.000000] [] kasan_end_report+0x50/0x50 [ 0.000000] [] kasan_report+0x15c/0x370 [ 0.000000] [] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] free_all_bootmem+0xf2/0x24d [ 0.000000] [] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [] ? dmar_table_detect+0x60/0x60 [ 0.000000] [] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [] mem_init+0x13/0x74 [ 0.000000] [] start_kernel+0x31d/0x6e9 [ 0.000000] [] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [] x86_64_start_kernel+0x140/0x163 [ 0.000000] Rebooting in 86400 seconds.. [ 0.000000] ACPI MEMORY or I/O RESET_REG. SeaBIOS (version 1.8.2-20171012_061934-google) Total RAM Size = 0x00000001e0000000 = 7680 MiB CPUs found: 2 Max CPUs supported: 2 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 0x000f3050: PCHS=0/0/0 translation=lba LCHS=520/128/63 s=4194304 Booting from Hard Disk 0... early console in decompress_kernel input_data: 0x00000000039be26e input_len: 0x0000000001424e03 output: 0x0000000001000000 output_len: 0x0000000003dcea40 run_size: 0x0000000005504000 Decompressing Linux... Parsing ELF... done. Booting the kernel. [ 0.000000] Initializing cgroup subsys cpuset [ 0.000000] Initializing cgroup subsys cpu [ 0.000000] Initializing cgroup subsys cpuacct [ 0.000000] Initializing cgroup subsys schedtune [ 0.000000] Linux version 4.4.108-g55b3b8c (syzkaller@ci) (gcc version 7.1.1 20170620 (GCC) ) #7 SMP PREEMPT Fri Dec 29 21:50:38 UTC 2017 [ 0.000000] Command line: BOOT_IMAGE=/vmlinuz root=/dev/sda1 console=ttyS0 earlyprintk=serial vsyscall=native rodata=n ftrace_dump_on_oops=orig_cpu oops=panic panic_on_warn=1 nmi_watchdog=panic panic=86400 workqueue.watchdog_thresh=120 [ 0.000000] KERNEL supported cpus: [ 0.000000] Intel GenuineIntel [ 0.000000] AMD AuthenticAMD [ 0.000000] Centaur CentaurHauls [ 0.000000] x86/fpu: xstate_offset[2]: 576, xstate_sizes[2]: 256 [ 0.000000] x86/fpu: Supporting XSAVE feature 0x01: 'x87 floating point registers' [ 0.000000] x86/fpu: Supporting XSAVE feature 0x02: 'SSE registers' [ 0.000000] x86/fpu: Supporting XSAVE feature 0x04: 'AVX registers' [ 0.000000] x86/fpu: Enabled xstate features 0x7, context size is 832 bytes, using 'standard' format. [ 0.000000] x86/fpu: Using 'eager' FPU context switches. [ 0.000000] e820: BIOS-provided physical RAM map: [ 0.000000] BIOS-e820: [mem 0x0000000000000000-0x000000000009fbff] usable [ 0.000000] BIOS-e820: [mem 0x000000000009fc00-0x000000000009ffff] reserved [ 0.000000] BIOS-e820: [mem 0x00000000000f0000-0x00000000000fffff] reserved [ 0.000000] BIOS-e820: [mem 0x0000000000100000-0x00000000bfffcfff] usable [ 0.000000] BIOS-e820: [mem 0x00000000bfffd000-0x00000000bfffffff] reserved [ 0.000000] BIOS-e820: [mem 0x00000000fffbc000-0x00000000ffffffff] reserved [ 0.000000] BIOS-e820: [mem 0x0000000100000000-0x000000021fffffff] usable [ 0.000000] bootconsole [earlyser0] enabled [ 0.000000] NX (Execute Disable) protection: active [ 0.000000] SMBIOS 2.4 present. [ 0.000000] Hypervisor detected: KVM [ 0.000000] e820: last_pfn = 0x220000 max_arch_pfn = 0x400000000 [ 0.000000] x86/PAT: Configuration [0-7]: WB WC UC- UC WB WC UC- WT [ 0.000000] e820: last_pfn = 0xbfffd max_arch_pfn = 0x400000000 [ 0.000000] found SMP MP-table at [mem 0x000f32c0-0x000f32cf] mapped at [ffff8800000f32c0] [ 0.000000] Scanning 1 areas for low memory corruption [ 0.000000] Using GB pages for direct mapping [ 0.000000] ACPI: Early table checksum verification disabled [ 0.000000] ACPI: RSDP 0x00000000000F3090 000014 (v00 Google) [ 0.000000] ACPI: RSDT 0x00000000BFFFDC70 000034 (v01 Google GOOGRSDT 00000001 GOOG 00000001) [ 0.000000] ACPI: FACP 0x00000000BFFFFF00 0000F4 (v02 Google GOOGFACP 00000001 GOOG 00000001) [ 0.000000] ACPI: DSDT 0x00000000BFFFDCB0 0017B2 (v01 Google GOOGDSDT 00000001 GOOG 00000001) [ 0.000000] ACPI: FACS 0x00000000BFFFFEC0 000040 [ 0.000000] ACPI: FACS 0x00000000BFFFFEC0 000040 [ 0.000000] ACPI: SSDT 0x00000000BFFFF590 000930 (v01 Google GOOGSSDT 00000001 GOOG 00000001) [ 0.000000] ACPI: APIC 0x00000000BFFFF4A0 000076 (v01 Google GOOGAPIC 00000001 GOOG 00000001) [ 0.000000] ACPI: WAET 0x00000000BFFFF470 000028 (v01 Google GOOGWAET 00000001 GOOG 00000001) [ 0.000000] kvm-clock: Using msrs 4b564d01 and 4b564d00 [ 0.000000] kvm-clock: cpu 0, msr 2:1fffd001, primary cpu clock [ 0.000000] kvm-clock: using sched offset of 1150909988 cycles [ 0.000000] clocksource: kvm-clock: mask: 0xffffffffffffffff max_cycles: 0x1cd42e4dffb, max_idle_ns: 881590591483 ns [ 0.000000] Zone ranges: [ 0.000000] DMA [mem 0x0000000000001000-0x0000000000ffffff] [ 0.000000] DMA32 [mem 0x0000000001000000-0x00000000ffffffff] [ 0.000000] Normal [mem 0x0000000100000000-0x000000021fffffff] [ 0.000000] Movable zone start for each node [ 0.000000] Early memory node ranges [ 0.000000] node 0: [mem 0x0000000000001000-0x000000000009efff] [ 0.000000] node 0: [mem 0x0000000000100000-0x00000000bfffcfff] [ 0.000000] node 0: [mem 0x0000000100000000-0x000000021fffffff] [ 0.000000] Initmem setup node 0 [mem 0x0000000000001000-0x000000021fffffff] [ 0.000000] kasan: KernelAddressSanitizer initialized [ 0.000000] ACPI: PM-Timer IO Port: 0xb008 [ 0.000000] ACPI: LAPIC_NMI (acpi_id[0xff] dfl dfl lint[0x1]) [ 0.000000] IOAPIC[0]: apic_id 0, version 17, address 0xfec00000, GSI 0-23 [ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 5 global_irq 5 high level) [ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 9 global_irq 9 high level) [ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 10 global_irq 10 high level) [ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 11 global_irq 11 high level) [ 0.000000] Using ACPI (MADT) for SMP configuration information [ 0.000000] smpboot: Allowing 2 CPUs, 0 hotplug CPUs [ 0.000000] PM: Registered nosave memory: [mem 0x00000000-0x00000fff] [ 0.000000] PM: Registered nosave memory: [mem 0x0009f000-0x0009ffff] [ 0.000000] PM: Registered nosave memory: [mem 0x000a0000-0x000effff] [ 0.000000] PM: Registered nosave memory: [mem 0x000f0000-0x000fffff] [ 0.000000] PM: Registered nosave memory: [mem 0xbfffd000-0xbfffffff] [ 0.000000] PM: Registered nosave memory: [mem 0xc0000000-0xfffbbfff] [ 0.000000] PM: Registered nosave memory: [mem 0xfffbc000-0xffffffff] [ 0.000000] e820: [mem 0xc0000000-0xfffbbfff] available for PCI devices [ 0.000000] Booting paravirtualized kernel on KVM [ 0.000000] clocksource: refined-jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604462750000 ns [ 0.000000] setup_percpu: NR_CPUS:64 nr_cpumask_bits:64 nr_cpu_ids:2 nr_node_ids:1 [ 0.000000] PERCPU: Embedded 42 pages/cpu @ffff8801db200000 s132680 r8192 d31160 u1048576 [ 0.000000] Built 1 zonelists in Zone order, mobility grouping on. Total pages: 1935238 [ 0.000000] Kernel command line: BOOT_IMAGE=/vmlinuz root=/dev/sda1 console=ttyS0 earlyprintk=serial vsyscall=native rodata=n ftrace_dump_on_oops=orig_cpu oops=panic panic_on_warn=1 nmi_watchdog=panic panic=86400 workqueue.watchdog_thresh=120 [ 0.000000] PID hash table entries: 4096 (order: 3, 32768 bytes) [ 0.000000] Dentry cache hash table entries: 1048576 (order: 11, 8388608 bytes) [ 0.000000] Inode-cache hash table entries: 524288 (order: 10, 4194304 bytes) [ 0.000000] ================================================================== [ 0.000000] BUG: KASAN: stack-out-of-bounds in reserve_bootmem_region+0xdf/0x130 [ 0.000000] Write of size 8 at addr ffffea0000047ce0 by task swapper/0 [ 0.000000] [ 0.000000] CPU: 0 PID: 0 Comm: swapper Not tainted 4.4.108-g55b3b8c #7 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 6201b68373090503 ffffffff84207ce8 ffffffff81d02e5d [ 0.000000] ffffea0000047ce0 ffffea0000047ce0 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d20 ffffffff814fb329 ffffea0000047ce0 [ 0.000000] Call Trace: [ 0.000000] [] dump_stack+0xc1/0x124 [ 0.000000] [] print_address_description+0x189/0x260 [ 0.000000] [] kasan_report+0x285/0x370 [ 0.000000] [] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] free_all_bootmem+0xf2/0x24d [ 0.000000] [] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [] ? dmar_table_detect+0x60/0x60 [ 0.000000] [] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [] mem_init+0x13/0x74 [ 0.000000] [] start_kernel+0x31d/0x6e9 [ 0.000000] [] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [] x86_64_start_kernel+0x140/0x163 [ 0.000000] [ 0.000000] [ 0.000000] Memory state around the buggy address: [ 0.000000] ffffea0000047b80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ffffea0000047c00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] >ffffea0000047c80: 00 00 00 00 00 00 f1 f1 f1 f1 00 00 f2 f2 00 00 [ 0.000000] ^ [ 0.000000] ffffea0000047d00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ffffea0000047d80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ================================================================== [ 0.000000] Disabling lock debugging due to kernel taint [ 0.000000] Kernel panic - not syncing: panic_on_warn set ... [ 0.000000] [ 0.000000] CPU: 0 PID: 0 Comm: swapper Tainted: G B 4.4.108-g55b3b8c #7 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 6201b68373090503 ffffffff84207c40 ffffffff81d02e5d [ 0.000000] ffffffff83fb34b5 ffffffff84207d18 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d08 ffffffff81417caa 0000000041b58ab3 [ 0.000000] Call Trace: [ 0.000000] [] dump_stack+0xc1/0x124 [ 0.000000] [] panic+0x1aa/0x388 [ 0.000000] [] ? percpu_up_read.constprop.45+0xe1/0xe1 [ 0.000000] [] kasan_end_report+0x50/0x50 [ 0.000000] [] kasan_report+0x15c/0x370 [ 0.000000] [] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] free_all_bootmem+0xf2/0x24d [ 0.000000] [] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [] ? dmar_table_detect+0x60/0x60 [ 0.000000] [] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [] mem_init+0x13/0x74 [ 0.000000] [] start_kernel+0x31d/0x6e9 [ 0.000000] [] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [] x86_64_start_kernel+0x140/0x163 [ 0.000000] Rebooting in 86400 seconds.. [ 0.000000] ACPI MEMORY or I/O RESET_REG. SeaBIOS (version 1.8.2-20171012_061934-google) Total RAM Size = 0x00000001e0000000 = 7680 MiB CPUs found: 2 Max CPUs supported: 2 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 0x000f3050: PCHS=0/0/0 translation=lba LCHS=520/128/63 s=4194304 Booting from Hard Disk 0... early console in decompress_kernel input_data: 0x00000000039be26e input_len: 0x0000000001424e03 output: 0x0000000001000000 output_len: 0x0000000003dcea40 run_size: 0x0000000005504000 Decompressing Linux... Parsing ELF... done. Booting the kernel. [ 0.000000] Initializing cgroup subsys cpuset [ 0.000000] Initializing cgroup subsys cpu [ 0.000000] Initializing cgroup subsys cpuacct [ 0.000000] Initializing cgroup subsys schedtune [ 0.000000] Linux version 4.4.108-g55b3b8c (syzkaller@ci) (gcc version 7.1.1 20170620 (GCC) ) #7 SMP PREEMPT Fri Dec 29 21:50:38 UTC 2017 [ 0.000000] Command line: BOOT_IMAGE=/vmlinuz root=/dev/sda1 console=ttyS0 earlyprintk=serial vsyscall=native rodata=n ftrace_dump_on_oops=orig_cpu oops=panic panic_on_warn=1 nmi_watchdog=panic panic=86400 workqueue.watchdog_thresh=120 [ 0.000000] KERNEL supported cpus: [ 0.000000] Intel GenuineIntel [ 0.000000] AMD AuthenticAMD [ 0.000000] Centaur CentaurHauls [ 0.000000] x86/fpu: xstate_offset[2]: 576, xstate_sizes[2]: 256 [ 0.000000] x86/fpu: Supporting XSAVE feature 0x01: 'x87 floating point registers' [ 0.000000] x86/fpu: Supporting XSAVE feature 0x02: 'SSE registers' [ 0.000000] x86/fpu: Supporting XSAVE feature 0x04: 'AVX registers' [ 0.000000] x86/fpu: Enabled xstate features 0x7, context size is 832 bytes, using 'standard' format. [ 0.000000] x86/fpu: Using 'eager' FPU context switches. [ 0.000000] e820: BIOS-provided physical RAM map: [ 0.000000] BIOS-e820: [mem 0x0000000000000000-0x000000000009fbff] usable [ 0.000000] BIOS-e820: [mem 0x000000000009fc00-0x000000000009ffff] reserved [ 0.000000] BIOS-e820: [mem 0x00000000000f0000-0x00000000000fffff] reserved [ 0.000000] BIOS-e820: [mem 0x0000000000100000-0x00000000bfffcfff] usable [ 0.000000] BIOS-e820: [mem 0x00000000bfffd000-0x00000000bfffffff] reserved [ 0.000000] BIOS-e820: [mem 0x00000000fffbc000-0x00000000ffffffff] reserved [ 0.000000] BIOS-e820: [mem 0x0000000100000000-0x000000021fffffff] usable [ 0.000000] bootconsole [earlyser0] enabled [ 0.000000] NX (Execute Disable) protection: active [ 0.000000] SMBIOS 2.4 present. [ 0.000000] Hypervisor detected: KVM [ 0.000000] e820: last_pfn = 0x220000 max_arch_pfn = 0x400000000 [ 0.000000] x86/PAT: Configuration [0-7]: WB WC UC- UC WB WC UC- WT [ 0.000000] e820: last_pfn = 0xbfffd max_arch_pfn = 0x400000000 [ 0.000000] found SMP MP-table at [mem 0x000f32c0-0x000f32cf] mapped at [ffff8800000f32c0] [ 0.000000] Scanning 1 areas for low memory corruption [ 0.000000] Using GB pages for direct mapping [ 0.000000] ACPI: Early table checksum verification disabled [ 0.000000] ACPI: RSDP 0x00000000000F3090 000014 (v00 Google) [ 0.000000] ACPI: RSDT 0x00000000BFFFDC70 000034 (v01 Google GOOGRSDT 00000001 GOOG 00000001) [ 0.000000] ACPI: FACP 0x00000000BFFFFF00 0000F4 (v02 Google GOOGFACP 00000001 GOOG 00000001) [ 0.000000] ACPI: DSDT 0x00000000BFFFDCB0 0017B2 (v01 Google GOOGDSDT 00000001 GOOG 00000001) [ 0.000000] ACPI: FACS 0x00000000BFFFFEC0 000040 [ 0.000000] ACPI: FACS 0x00000000BFFFFEC0 000040 [ 0.000000] ACPI: SSDT 0x00000000BFFFF590 000930 (v01 Google GOOGSSDT 00000001 GOOG 00000001) [ 0.000000] ACPI: APIC 0x00000000BFFFF4A0 000076 (v01 Google GOOGAPIC 00000001 GOOG 00000001) [ 0.000000] ACPI: WAET 0x00000000BFFFF470 000028 (v01 Google GOOGWAET 00000001 GOOG 00000001) [ 0.000000] kvm-clock: Using msrs 4b564d01 and 4b564d00 [ 0.000000] kvm-clock: cpu 0, msr 2:1fffd001, primary cpu clock [ 0.000000] kvm-clock: using sched offset of 1183449922 cycles [ 0.000000] clocksource: kvm-clock: mask: 0xffffffffffffffff max_cycles: 0x1cd42e4dffb, max_idle_ns: 881590591483 ns [ 0.000000] Zone ranges: [ 0.000000] DMA [mem 0x0000000000001000-0x0000000000ffffff] [ 0.000000] DMA32 [mem 0x0000000001000000-0x00000000ffffffff] [ 0.000000] Normal [mem 0x0000000100000000-0x000000021fffffff] [ 0.000000] Movable zone start for each node [ 0.000000] Early memory node ranges [ 0.000000] node 0: [mem 0x0000000000001000-0x000000000009efff] [ 0.000000] node 0: [mem 0x0000000000100000-0x00000000bfffcfff] [ 0.000000] node 0: [mem 0x0000000100000000-0x000000021fffffff] [ 0.000000] Initmem setup node 0 [mem 0x0000000000001000-0x000000021fffffff] [ 0.000000] kasan: KernelAddressSanitizer initialized [ 0.000000] ACPI: PM-Timer IO Port: 0xb008 [ 0.000000] ACPI: LAPIC_NMI (acpi_id[0xff] dfl dfl lint[0x1]) [ 0.000000] IOAPIC[0]: apic_id 0, version 17, address 0xfec00000, GSI 0-23 [ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 5 global_irq 5 high level) [ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 9 global_irq 9 high level) [ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 10 global_irq 10 high level) [ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 11 global_irq 11 high level) [ 0.000000] Using ACPI (MADT) for SMP configuration information [ 0.000000] smpboot: Allowing 2 CPUs, 0 hotplug CPUs [ 0.000000] PM: Registered nosave memory: [mem 0x00000000-0x00000fff] [ 0.000000] PM: Registered nosave memory: [mem 0x0009f000-0x0009ffff] [ 0.000000] PM: Registered nosave memory: [mem 0x000a0000-0x000effff] [ 0.000000] PM: Registered nosave memory: [mem 0x000f0000-0x000fffff] [ 0.000000] PM: Registered nosave memory: [mem 0xbfffd000-0xbfffffff] [ 0.000000] PM: Registered nosave memory: [mem 0xc0000000-0xfffbbfff] [ 0.000000] PM: Registered nosave memory: [mem 0xfffbc000-0xffffffff] [ 0.000000] e820: [mem 0xc0000000-0xfffbbfff] available for PCI devices [ 0.000000] Booting paravirtualized kernel on KVM [ 0.000000] clocksource: refined-jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604462750000 ns [ 0.000000] setup_percpu: NR_CPUS:64 nr_cpumask_bits:64 nr_cpu_ids:2 nr_node_ids:1 [ 0.000000] PERCPU: Embedded 42 pages/cpu @ffff8801db200000 s132680 r8192 d31160 u1048576 [ 0.000000] Built 1 zonelists in Zone order, mobility grouping on. Total pages: 1935238 [ 0.000000] Kernel command line: BOOT_IMAGE=/vmlinuz root=/dev/sda1 console=ttyS0 earlyprintk=serial vsyscall=native rodata=n ftrace_dump_on_oops=orig_cpu oops=panic panic_on_warn=1 nmi_watchdog=panic panic=86400 workqueue.watchdog_thresh=120 [ 0.000000] PID hash table entries: 4096 (order: 3, 32768 bytes) [ 0.000000] Dentry cache hash table entries: 1048576 (order: 11, 8388608 bytes) [ 0.000000] Inode-cache hash table entries: 524288 (order: 10, 4194304 bytes) [ 0.000000] ================================================================== [ 0.000000] BUG: KASAN: stack-out-of-bounds in reserve_bootmem_region+0xdf/0x130 [ 0.000000] Write of size 8 at addr ffffea0000047ce0 by task swapper/0 [ 0.000000] [ 0.000000] CPU: 0 PID: 0 Comm: swapper Not tainted 4.4.108-g55b3b8c #7 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 667cf378778441f8 ffffffff84207ce8 ffffffff81d02e5d [ 0.000000] ffffea0000047ce0 ffffea0000047ce0 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d20 ffffffff814fb329 ffffea0000047ce0 [ 0.000000] Call Trace: [ 0.000000] [] dump_stack+0xc1/0x124 [ 0.000000] [] print_address_description+0x189/0x260 [ 0.000000] [] kasan_report+0x285/0x370 [ 0.000000] [] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] free_all_bootmem+0xf2/0x24d [ 0.000000] [] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [] ? dmar_table_detect+0x60/0x60 [ 0.000000] [] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [] mem_init+0x13/0x74 [ 0.000000] [] start_kernel+0x31d/0x6e9 [ 0.000000] [] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [] x86_64_start_kernel+0x140/0x163 [ 0.000000] [ 0.000000] [ 0.000000] Memory state around the buggy address: [ 0.000000] ffffea0000047b80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ffffea0000047c00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] >ffffea0000047c80: 00 00 00 00 00 00 f1 f1 f1 f1 00 00 f2 f2 00 00 [ 0.000000] ^ [ 0.000000] ffffea0000047d00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ffffea0000047d80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ================================================================== [ 0.000000] Disabling lock debugging due to kernel taint [ 0.000000] Kernel panic - not syncing: panic_on_warn set ... [ 0.000000] [ 0.000000] CPU: 0 PID: 0 Comm: swapper Tainted: G B 4.4.108-g55b3b8c #7 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 667cf378778441f8 ffffffff84207c40 ffffffff81d02e5d [ 0.000000] ffffffff83fb34b5 ffffffff84207d18 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d08 ffffffff81417caa 0000000041b58ab3 [ 0.000000] Call Trace: [ 0.000000] [] dump_stack+0xc1/0x124 [ 0.000000] [] panic+0x1aa/0x388 [ 0.000000] [] ? percpu_up_read.constprop.45+0xe1/0xe1 [ 0.000000] [] kasan_end_report+0x50/0x50 [ 0.000000] [] kasan_report+0x15c/0x370 [ 0.000000] [] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] free_all_bootmem+0xf2/0x24d [ 0.000000] [] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [] ? dmar_table_detect+0x60/0x60 [ 0.000000] [] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [] mem_init+0x13/0x74 [ 0.000000] [] start_kernel+0x31d/0x6e9 [ 0.000000] [] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [] x86_64_start_kernel+0x140/0x163 [ 0.000000] Rebooting in 86400 seconds.. [ 0.000000] ACPI MEMORY or I/O RESET_REG. SeaBIOS (version 1.8.2-20171012_061934-google) Total RAM Size = 0x00000001e0000000 = 7680 MiB CPUs found: 2 Max CPUs supported: 2 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 0x000f3050: PCHS=0/0/0 translation=lba LCHS=520/128/63 s=4194304 Booting from Hard Disk 0... early console in decompress_kernel input_data: 0x00000000039be26e input_len: 0x0000000001424e03 output: 0x0000000001000000 output_len: 0x0000000003dcea40 run_size: 0x0000000005504000 Decompressing Linux... Parsing ELF... done. Booting the kernel. [ 0.000000] Initializing cgroup subsys cpuset [ 0.000000] Initializing cgroup subsys cpu [ 0.000000] Initializing cgroup subsys cpuacct [ 0.000000] Initializing cgroup subsys schedtune [ 0.000000] Linux version 4.4.108-g55b3b8c (syzkaller@ci) (gcc version 7.1.1 20170620 (GCC) ) #7 SMP PREEMPT Fri Dec 29 21:50:38 UTC 2017 [ 0.000000] Command line: BOOT_IMAGE=/vmlinuz root=/dev/sda1 console=ttyS0 earlyprintk=serial vsyscall=native rodata=n ftrace_dump_on_oops=orig_cpu oops=panic panic_on_warn=1 nmi_watchdog=panic panic=86400 workqueue.watchdog_thresh=120 [ 0.000000] KERNEL supported cpus: [ 0.000000] Intel GenuineIntel [ 0.000000] AMD AuthenticAMD [ 0.000000] Centaur CentaurHauls [ 0.000000] x86/fpu: xstate_offset[2]: 576, xstate_sizes[2]: 256 [ 0.000000] x86/fpu: Supporting XSAVE feature 0x01: 'x87 floating point registers' [ 0.000000] x86/fpu: Supporting XSAVE feature 0x02: 'SSE registers' [ 0.000000] x86/fpu: Supporting XSAVE feature 0x04: 'AVX registers' [ 0.000000] x86/fpu: Enabled xstate features 0x7, context size is 832 bytes, using 'standard' format. [ 0.000000] x86/fpu: Using 'eager' FPU context switches. [ 0.000000] e820: BIOS-provided physical RAM map: [ 0.000000] BIOS-e820: [mem 0x0000000000000000-0x000000000009fbff] usable [ 0.000000] BIOS-e820: [mem 0x000000000009fc00-0x000000000009ffff] reserved [ 0.000000] BIOS-e820: [mem 0x00000000000f0000-0x00000000000fffff] reserved [ 0.000000] BIOS-e820: [mem 0x0000000000100000-0x00000000bfffcfff] usable [ 0.000000] BIOS-e820: [mem 0x00000000bfffd000-0x00000000bfffffff] reserved [ 0.000000] BIOS-e820: [mem 0x00000000fffbc000-0x00000000ffffffff] reserved [ 0.000000] BIOS-e820: [mem 0x0000000100000000-0x000000021fffffff] usable [ 0.000000] bootconsole [earlyser0] enabled [ 0.000000] NX (Execute Disable) protection: active [ 0.000000] SMBIOS 2.4 present. [ 0.000000] Hypervisor detected: KVM [ 0.000000] e820: last_pfn = 0x220000 max_arch_pfn = 0x400000000 [ 0.000000] x86/PAT: Configuration [0-7]: WB WC UC- UC WB WC UC- WT [ 0.000000] e820: last_pfn = 0xbfffd max_arch_pfn = 0x400000000 [ 0.000000] found SMP MP-table at [mem 0x000f32c0-0x000f32cf] mapped at [ffff8800000f32c0] [ 0.000000] Scanning 1 areas for low memory corruption [ 0.000000] Using GB pages for direct mapping [ 0.000000] ACPI: Early table checksum verification disabled [ 0.000000] ACPI: RSDP 0x00000000000F3090 000014 (v00 Google) [ 0.000000] ACPI: RSDT 0x00000000BFFFDC70 000034 (v01 Google GOOGRSDT 00000001 GOOG 00000001) [ 0.000000] ACPI: FACP 0x00000000BFFFFF00 0000F4 (v02 Google GOOGFACP 00000001 GOOG 00000001) [ 0.000000] ACPI: DSDT 0x00000000BFFFDCB0 0017B2 (v01 Google GOOGDSDT 00000001 GOOG 00000001) [ 0.000000] ACPI: FACS 0x00000000BFFFFEC0 000040 [ 0.000000] ACPI: FACS 0x00000000BFFFFEC0 000040 [ 0.000000] ACPI: SSDT 0x00000000BFFFF590 000930 (v01 Google GOOGSSDT 00000001 GOOG 00000001) [ 0.000000] ACPI: APIC 0x00000000BFFFF4A0 000076 (v01 Google GOOGAPIC 00000001 GOOG 00000001) [ 0.000000] ACPI: WAET 0x00000000BFFFF470 000028 (v01 Google GOOGWAET 00000001 GOOG 00000001) [ 0.000000] kvm-clock: Using msrs 4b564d01 and 4b564d00 [ 0.000000] kvm-clock: cpu 0, msr 2:1fffd001, primary cpu clock [ 0.000000] kvm-clock: using sched offset of 1316879223 cycles [ 0.000000] clocksource: kvm-clock: mask: 0xffffffffffffffff max_cycles: 0x1cd42e4dffb, max_idle_ns: 881590591483 ns [ 0.000000] Zone ranges: [ 0.000000] DMA [mem 0x0000000000001000-0x0000000000ffffff] [ 0.000000] DMA32 [mem 0x0000000001000000-0x00000000ffffffff] [ 0.000000] Normal [mem 0x0000000100000000-0x000000021fffffff] [ 0.000000] Movable zone start for each node [ 0.000000] Early memory node ranges [ 0.000000] node 0: [mem 0x0000000000001000-0x000000000009efff] [ 0.000000] node 0: [mem 0x0000000000100000-0x00000000bfffcfff] [ 0.000000] node 0: [mem 0x0000000100000000-0x000000021fffffff] [ 0.000000] Initmem setup node 0 [mem 0x0000000000001000-0x000000021fffffff] [ 0.000000] kasan: KernelAddressSanitizer initialized [ 0.000000] ACPI: PM-Timer IO Port: 0xb008 [ 0.000000] ACPI: LAPIC_NMI (acpi_id[0xff] dfl dfl lint[0x1]) [ 0.000000] IOAPIC[0]: apic_id 0, version 17, address 0xfec00000, GSI 0-23 [ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 5 global_irq 5 high level) [ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 9 global_irq 9 high level) [ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 10 global_irq 10 high level) [ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 11 global_irq 11 high level) [ 0.000000] Using ACPI (MADT) for SMP configuration information [ 0.000000] smpboot: Allowing 2 CPUs, 0 hotplug CPUs [ 0.000000] PM: Registered nosave memory: [mem 0x00000000-0x00000fff] [ 0.000000] PM: Registered nosave memory: [mem 0x0009f000-0x0009ffff] [ 0.000000] PM: Registered nosave memory: [mem 0x000a0000-0x000effff] [ 0.000000] PM: Registered nosave memory: [mem 0x000f0000-0x000fffff] [ 0.000000] PM: Registered nosave memory: [mem 0xbfffd000-0xbfffffff] [ 0.000000] PM: Registered nosave memory: [mem 0xc0000000-0xfffbbfff] [ 0.000000] PM: Registered nosave memory: [mem 0xfffbc000-0xffffffff] [ 0.000000] e820: [mem 0xc0000000-0xfffbbfff] available for PCI devices [ 0.000000] Booting paravirtualized kernel on KVM [ 0.000000] clocksource: refined-jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604462750000 ns [ 0.000000] setup_percpu: NR_CPUS:64 nr_cpumask_bits:64 nr_cpu_ids:2 nr_node_ids:1 [ 0.000000] PERCPU: Embedded 42 pages/cpu @ffff8801db200000 s132680 r8192 d31160 u1048576 [ 0.000000] Built 1 zonelists in Zone order, mobility grouping on. Total pages: 1935238 [ 0.000000] Kernel command line: BOOT_IMAGE=/vmlinuz root=/dev/sda1 console=ttyS0 earlyprintk=serial vsyscall=native rodata=n ftrace_dump_on_oops=orig_cpu oops=panic panic_on_warn=1 nmi_watchdog=panic panic=86400 workqueue.watchdog_thresh=120 [ 0.000000] PID hash table entries: 4096 (order: 3, 32768 bytes) [ 0.000000] Dentry cache hash table entries: 1048576 (order: 11, 8388608 bytes) [ 0.000000] Inode-cache hash table entries: 524288 (order: 10, 4194304 bytes) [ 0.000000] ================================================================== [ 0.000000] BUG: KASAN: stack-out-of-bounds in reserve_bootmem_region+0xdf/0x130 [ 0.000000] Write of size 8 at addr ffffea0000047ce0 by task swapper/0 [ 0.000000] [ 0.000000] CPU: 0 PID: 0 Comm: swapper Not tainted 4.4.108-g55b3b8c #7 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 7870faf889784978 ffffffff84207ce8 ffffffff81d02e5d [ 0.000000] ffffea0000047ce0 ffffea0000047ce0 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d20 ffffffff814fb329 ffffea0000047ce0 [ 0.000000] Call Trace: [ 0.000000] [] dump_stack+0xc1/0x124 [ 0.000000] [] print_address_description+0x189/0x260 [ 0.000000] [] kasan_report+0x285/0x370 [ 0.000000] [] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] free_all_bootmem+0xf2/0x24d [ 0.000000] [] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [] ? dmar_table_detect+0x60/0x60 [ 0.000000] [] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [] mem_init+0x13/0x74 [ 0.000000] [] start_kernel+0x31d/0x6e9 [ 0.000000] [] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [] x86_64_start_kernel+0x140/0x163 [ 0.000000] [ 0.000000] [ 0.000000] Memory state around the buggy address: [ 0.000000] ffffea0000047b80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ffffea0000047c00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] >ffffea0000047c80: 00 00 00 00 00 00 f1 f1 f1 f1 00 00 f2 f2 00 00 [ 0.000000] ^ [ 0.000000] ffffea0000047d00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ffffea0000047d80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ================================================================== [ 0.000000] Disabling lock debugging due to kernel taint [ 0.000000] Kernel panic - not syncing: panic_on_warn set ... [ 0.000000] [ 0.000000] CPU: 0 PID: 0 Comm: swapper Tainted: G B 4.4.108-g55b3b8c #7 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 7870faf889784978 ffffffff84207c40 ffffffff81d02e5d [ 0.000000] ffffffff83fb34b5 ffffffff84207d18 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d08 ffffffff81417caa 0000000041b58ab3 [ 0.000000] Call Trace: [ 0.000000] [] dump_stack+0xc1/0x124 [ 0.000000] [] panic+0x1aa/0x388 [ 0.000000] [] ? percpu_up_read.constprop.45+0xe1/0xe1 [ 0.000000] [] kasan_end_report+0x50/0x50 [ 0.000000] [] kasan_report+0x15c/0x370 [ 0.000000] [] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] free_all_bootmem+0xf2/0x24d [ 0.000000] [] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [] ? dmar_table_detect+0x60/0x60 [ 0.000000] [] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [] mem_init+0x13/0x74 [ 0.000000] [] start_kernel+0x31d/0x6e9 [ 0.000000] [] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [] x86_64_start_kernel+0x140/0x163 [ 0.000000] Rebooting in 86400 seconds.. [ 0.000000] ACPI MEMORY or I/O RESET_REG. SeaBIOS (version 1.8.2-20171012_061934-google) Total RAM Size = 0x00000001e0000000 = 7680 MiB CPUs found: 2 Max CPUs supported: 2 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 0x000f3050: PCHS=0/0/0 translation=lba LCHS=520/128/63 s=4194304 Booting from Hard Disk 0... early console in decompress_kernel input_data: 0x00000000039be26e input_len: 0x0000000001424e03 output: 0x0000000001000000 output_len: 0x0000000003dcea40 run_size: 0x0000000005504000 Decompressing Linux... Parsing ELF... done. Booting the kernel. [ 0.000000] Initializing cgroup subsys cpuset [ 0.000000] Initializing cgroup subsys cpu [ 0.000000] Initializing cgroup subsys cpuacct [ 0.000000] Initializing cgroup subsys schedtune [ 0.000000] Linux version 4.4.108-g55b3b8c (syzkaller@ci) (gcc version 7.1.1 20170620 (GCC) ) #7 SMP PREEMPT Fri Dec 29 21:50:38 UTC 2017 [ 0.000000] Command line: BOOT_IMAGE=/vmlinuz root=/dev/sda1 console=ttyS0 earlyprintk=serial vsyscall=native rodata=n ftrace_dump_on_oops=orig_cpu oops=panic panic_on_warn=1 nmi_watchdog=panic panic=86400 workqueue.watchdog_thresh=120 [ 0.000000] KERNEL supported cpus: [ 0.000000] Intel GenuineIntel [ 0.000000] AMD AuthenticAMD [ 0.000000] Centaur CentaurHauls [ 0.000000] x86/fpu: xstate_offset[2]: 576, xstate_sizes[2]: 256 [ 0.000000] x86/fpu: Supporting XSAVE feature 0x01: 'x87 floating point registers' [ 0.000000] x86/fpu: Supporting XSAVE feature 0x02: 'SSE registers' [ 0.000000] x86/fpu: Supporting XSAVE feature 0x04: 'AVX registers' [ 0.000000] x86/fpu: Enabled xstate features 0x7, context size is 832 bytes, using 'standard' format. [ 0.000000] x86/fpu: Using 'eager' FPU context switches. [ 0.000000] e820: BIOS-provided physical RAM map: [ 0.000000] BIOS-e820: [mem 0x0000000000000000-0x000000000009fbff] usable [ 0.000000] BIOS-e820: [mem 0x000000000009fc00-0x000000000009ffff] reserved [ 0.000000] BIOS-e820: [mem 0x00000000000f0000-0x00000000000fffff] reserved [ 0.000000] BIOS-e820: [mem 0x0000000000100000-0x00000000bfffcfff] usable [ 0.000000] BIOS-e820: [mem 0x00000000bfffd000-0x00000000bfffffff] reserved [ 0.000000] BIOS-e820: [mem 0x00000000fffbc000-0x00000000ffffffff] reserved [ 0.000000] BIOS-e820: [mem 0x0000000100000000-0x000000021fffffff] usable [ 0.000000] bootconsole [earlyser0] enabled [ 0.000000] NX (Execute Disable) protection: active [ 0.000000] SMBIOS 2.4 present. [ 0.000000] Hypervisor detected: KVM [ 0.000000] e820: last_pfn = 0x220000 max_arch_pfn = 0x400000000 [ 0.000000] x86/PAT: Configuration [0-7]: WB WC UC- UC WB WC UC- WT [ 0.000000] e820: last_pfn = 0xbfffd max_arch_pfn = 0x400000000 [ 0.000000] found SMP MP-table at [mem 0x000f32c0-0x000f32cf] mapped at [ffff8800000f32c0] [ 0.000000] Scanning 1 areas for low memory corruption [ 0.000000] Using GB pages for direct mapping [ 0.000000] ACPI: Early table checksum verification disabled [ 0.000000] ACPI: RSDP 0x00000000000F3090 000014 (v00 Google) [ 0.000000] ACPI: RSDT 0x00000000BFFFDC70 000034 (v01 Google GOOGRSDT 00000001 GOOG 00000001) [ 0.000000] ACPI: FACP 0x00000000BFFFFF00 0000F4 (v02 Google GOOGFACP 00000001 GOOG 00000001) [ 0.000000] ACPI: DSDT 0x00000000BFFFDCB0 0017B2 (v01 Google GOOGDSDT 00000001 GOOG 00000001) [ 0.000000] ACPI: FACS 0x00000000BFFFFEC0 000040 [ 0.000000] ACPI: FACS 0x00000000BFFFFEC0 000040 [ 0.000000] ACPI: SSDT 0x00000000BFFFF590 000930 (v01 Google GOOGSSDT 00000001 GOOG 00000001) [ 0.000000] ACPI: APIC 0x00000000BFFFF4A0 000076 (v01 Google GOOGAPIC 00000001 GOOG 00000001) [ 0.000000] ACPI: WAET 0x00000000BFFFF470 000028 (v01 Google GOOGWAET 00000001 GOOG 00000001) [ 0.000000] kvm-clock: Using msrs 4b564d01 and 4b564d00 [ 0.000000] kvm-clock: cpu 0, msr 2:1fffd001, primary cpu clock [ 0.000000] kvm-clock: using sched offset of 1283805773 cycles [ 0.000000] clocksource: kvm-clock: mask: 0xffffffffffffffff max_cycles: 0x1cd42e4dffb, max_idle_ns: 881590591483 ns [ 0.000000] Zone ranges: [ 0.000000] DMA [mem 0x0000000000001000-0x0000000000ffffff] [ 0.000000] DMA32 [mem 0x0000000001000000-0x00000000ffffffff] [ 0.000000] Normal [mem 0x0000000100000000-0x000000021fffffff] [ 0.000000] Movable zone start for each node [ 0.000000] Early memory node ranges [ 0.000000] node 0: [mem 0x0000000000001000-0x000000000009efff] [ 0.000000] node 0: [mem 0x0000000000100000-0x00000000bfffcfff] [ 0.000000] node 0: [mem 0x0000000100000000-0x000000021fffffff] [ 0.000000] Initmem setup node 0 [mem 0x0000000000001000-0x000000021fffffff] [ 0.000000] kasan: KernelAddressSanitizer initialized [ 0.000000] ACPI: PM-Timer IO Port: 0xb008 [ 0.000000] ACPI: LAPIC_NMI (acpi_id[0xff] dfl dfl lint[0x1]) [ 0.000000] IOAPIC[0]: apic_id 0, version 17, address 0xfec00000, GSI 0-23 [ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 5 global_irq 5 high level) [ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 9 global_irq 9 high level) [ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 10 global_irq 10 high level) [ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 11 global_irq 11 high level) [ 0.000000] Using ACPI (MADT) for SMP configuration information [ 0.000000] smpboot: Allowing 2 CPUs, 0 hotplug CPUs [ 0.000000] PM: Registered nosave memory: [mem 0x00000000-0x00000fff] [ 0.000000] PM: Registered nosave memory: [mem 0x0009f000-0x0009ffff] [ 0.000000] PM: Registered nosave memory: [mem 0x000a0000-0x000effff] [ 0.000000] PM: Registered nosave memory: [mem 0x000f0000-0x000fffff] [ 0.000000] PM: Registered nosave memory: [mem 0xbfffd000-0xbfffffff] [ 0.000000] PM: Registered nosave memory: [mem 0xc0000000-0xfffbbfff] [ 0.000000] PM: Registered nosave memory: [mem 0xfffbc000-0xffffffff] [ 0.000000] e820: [mem 0xc0000000-0xfffbbfff] available for PCI devices [ 0.000000] Booting paravirtualized kernel on KVM [ 0.000000] clocksource: refined-jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604462750000 ns [ 0.000000] setup_percpu: NR_CPUS:64 nr_cpumask_bits:64 nr_cpu_ids:2 nr_node_ids:1 [ 0.000000] PERCPU: Embedded 42 pages/cpu @ffff8801db200000 s132680 r8192 d31160 u1048576 [ 0.000000] Built 1 zonelists in Zone order, mobility grouping on. Total pages: 1935238 [ 0.000000] Kernel command line: BOOT_IMAGE=/vmlinuz root=/dev/sda1 console=ttyS0 earlyprintk=serial vsyscall=native rodata=n ftrace_dump_on_oops=orig_cpu oops=panic panic_on_warn=1 nmi_watchdog=panic panic=86400 workqueue.watchdog_thresh=120 [ 0.000000] PID hash table entries: 4096 (order: 3, 32768 bytes) [ 0.000000] Dentry cache hash table entries: 1048576 (order: 11, 8388608 bytes) [ 0.000000] Inode-cache hash table entries: 524288 (order: 10, 4194304 bytes) [ 0.000000] ================================================================== [ 0.000000] BUG: KASAN: stack-out-of-bounds in reserve_bootmem_region+0xdf/0x130 [ 0.000000] Write of size 8 at addr ffffea0000047ce0 by task swapper/0 [ 0.000000] [ 0.000000] CPU: 0 PID: 0 Comm: swapper Not tainted 4.4.108-g55b3b8c #7 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 743ed6bb8546253b ffffffff84207ce8 ffffffff81d02e5d [ 0.000000] ffffea0000047ce0 ffffea0000047ce0 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d20 ffffffff814fb329 ffffea0000047ce0 [ 0.000000] Call Trace: [ 0.000000] [] dump_stack+0xc1/0x124 [ 0.000000] [] print_address_description+0x189/0x260 [ 0.000000] [] kasan_report+0x285/0x370 [ 0.000000] [] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] free_all_bootmem+0xf2/0x24d [ 0.000000] [] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [] ? dmar_table_detect+0x60/0x60 [ 0.000000] [] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [] mem_init+0x13/0x74 [ 0.000000] [] start_kernel+0x31d/0x6e9 [ 0.000000] [] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [] x86_64_start_kernel+0x140/0x163 [ 0.000000] [ 0.000000] [ 0.000000] Memory state around the buggy address: [ 0.000000] ffffea0000047b80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ffffea0000047c00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] >ffffea0000047c80: 00 00 00 00 00 00 f1 f1 f1 f1 00 00 f2 f2 00 00 [ 0.000000] ^ [ 0.000000] ffffea0000047d00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ffffea0000047d80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ================================================================== [ 0.000000] Disabling lock debugging due to kernel taint [ 0.000000] Kernel panic - not syncing: panic_on_warn set ... [ 0.000000] [ 0.000000] CPU: 0 PID: 0 Comm: swapper Tainted: G B 4.4.108-g55b3b8c #7 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 743ed6bb8546253b ffffffff84207c40 ffffffff81d02e5d [ 0.000000] ffffffff83fb34b5 ffffffff84207d18 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d08 ffffffff81417caa 0000000041b58ab3 [ 0.000000] Call Trace: [ 0.000000] [] dump_stack+0xc1/0x124 [ 0.000000] [] panic+0x1aa/0x388 [ 0.000000] [] ? percpu_up_read.constprop.45+0xe1/0xe1 [ 0.000000] [] kasan_end_report+0x50/0x50 [ 0.000000] [] kasan_report+0x15c/0x370 [ 0.000000] [] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] free_all_bootmem+0xf2/0x24d [ 0.000000] [] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [] ? dmar_table_detect+0x60/0x60 [ 0.000000] [] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [] mem_init+0x13/0x74 [ 0.000000] [] start_kernel+0x31d/0x6e9 [ 0.000000] [] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [] x86_64_start_kernel+0x140/0x163 [ 0.000000] Rebooting in 86400 seconds.. [ 0.000000] ACPI MEMORY or I/O RESET_REG. [ SeaBIOS (version 1.8.2-20171012_061934-google) Total RAM Size = 0x00000001e0000000 = 7680 MiB CPUs found: 2 Max CPUs supported: 2 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 0x000f3050: PCHS=0/0/0 translation=lba LCHS=520/128/63 s=4194304 Booting from Hard Disk 0... early console in decompress_kernel input_data: 0x00000000039be26e input_len: 0x0000000001424e03 output: 0x0000000001000000 output_len: 0x0000000003dcea40 run_size: 0x0000000005504000 Decompressing Linux... Parsing ELF... done. Booting the kernel. [ 0.000000] Initializing cgroup subsys cpuset [ 0.000000] Initializing cgroup subsys cpu [ 0.000000] Initializing cgroup subsys cpuacct [ 0.000000] Initializing cgroup subsys schedtune [ 0.000000] Linux version 4.4.108-g55b3b8c (syzkaller@ci) (gcc version 7.1.1 20170620 (GCC) ) #7 SMP PREEMPT Fri Dec 29 21:50:38 UTC 2017 [ 0.000000] Command line: BOOT_IMAGE=/vmlinuz root=/dev/sda1 console=ttyS0 earlyprintk=serial vsyscall=native rodata=n ftrace_dump_on_oops=orig_cpu oops=panic panic_on_warn=1 nmi_watchdog=panic panic=86400 workqueue.watchdog_thresh=120 [ 0.000000] KERNEL supported cpus: [ 0.000000] Intel GenuineIntel [ 0.000000] AMD AuthenticAMD [ 0.000000] Centaur CentaurHauls [ 0.000000] x86/fpu: xstate_offset[2]: 576, xstate_sizes[2]: 256 [ 0.000000] x86/fpu: Supporting XSAVE feature 0x01: 'x87 floating point registers' [ 0.000000] x86/fpu: Supporting XSAVE feature 0x02: 'SSE registers' [ 0.000000] x86/fpu: Supporting XSAVE feature 0x04: 'AVX registers' [ 0.000000] x86/fpu: Enabled xstate features 0x7, context size is 832 bytes, using 'standard' format. [ 0.000000] x86/fpu: Using 'eager' FPU context switches. [ 0.000000] e820: BIOS-provided physical RAM map: [ 0.000000] BIOS-e820: [mem 0x0000000000000000-0x000000000009fbff] usable [ 0.000000] BIOS-e820: [mem 0x000000000009fc00-0x000000000009ffff] reserved [ 0.000000] BIOS-e820: [mem 0x00000000000f0000-0x00000000000fffff] reserved [ 0.000000] BIOS-e820: [mem 0x0000000000100000-0x00000000bfffcfff] usable [ 0.000000] BIOS-e820: [mem 0x00000000bfffd000-0x00000000bfffffff] reserved [ 0.000000] BIOS-e820: [mem 0x00000000fffbc000-0x00000000ffffffff] reserved [ 0.000000] BIOS-e820: [mem 0x0000000100000000-0x000000021fffffff] usable [ 0.000000] bootconsole [earlyser0] enabled [ 0.000000] NX (Execute Disable) protection: active [ 0.000000] SMBIOS 2.4 present. [ 0.000000] Hypervisor detected: KVM [ 0.000000] e820: last_pfn = 0x220000 max_arch_pfn = 0x400000000 [ 0.000000] x86/PAT: Configuration [0-7]: WB WC UC- UC WB WC UC- WT [ 0.000000] e820: last_pfn = 0xbfffd max_arch_pfn = 0x400000000 [ 0.000000] found SMP MP-table at [mem 0x000f32c0-0x000f32cf] mapped at [ffff8800000f32c0] [ 0.000000] Scanning 1 areas for low memory corruption [ 0.000000] Using GB pages for direct mapping [ 0.000000] ACPI: Early table checksum verification disabled [ 0.000000] ACPI: RSDP 0x00000000000F3090 000014 (v00 Google) [ 0.000000] ACPI: RSDT 0x00000000BFFFDC70 000034 (v01 Google GOOGRSDT 00000001 GOOG 00000001) [ 0.000000] ACPI: FACP 0x00000000BFFFFF00 0000F4 (v02 Google GOOGFACP 00000001 GOOG 00000001) [ 0.000000] ACPI: DSDT 0x00000000BFFFDCB0 0017B2 (v01 Google GOOGDSDT 00000001 GOOG 00000001) [ 0.000000] ACPI: FACS 0x00000000BFFFFEC0 000040 [ 0.000000] ACPI: FACS 0x00000000BFFFFEC0 000040 [ 0.000000] ACPI: SSDT 0x00000000BFFFF590 000930 (v01 Google GOOGSSDT 00000001 GOOG 00000001) [ 0.000000] ACPI: APIC 0x00000000BFFFF4A0 000076 (v01 Google GOOGAPIC 00000001 GOOG 00000001) [ 0.000000] ACPI: WAET 0x00000000BFFFF470 000028 (v01 Google GOOGWAET 00000001 GOOG 00000001) [ 0.000000] kvm-clock: Using msrs 4b564d01 and 4b564d00 [ 0.000000] kvm-clock: cpu 0, msr 2:1fffd001, primary cpu clock [ 0.000000] kvm-clock: using sched offset of 1334250562 cycles [ 0.000000] clocksource: kvm-clock: mask: 0xffffffffffffffff max_cycles: 0x1cd42e4dffb, max_idle_ns: 881590591483 ns [ 0.000000] Zone ranges: [ 0.000000] DMA [mem 0x0000000000001000-0x0000000000ffffff] [ 0.000000] DMA32 [mem 0x0000000001000000-0x00000000ffffffff] [ 0.000000] Normal [mem 0x0000000100000000-0x000000021fffffff] [ 0.000000] Movable zone start for each node [ 0.000000] Early memory node ranges [ 0.000000] node 0: [mem 0x0000000000001000-0x000000000009efff] [ 0.000000] node 0: [mem 0x0000000000100000-0x00000000bfffcfff] [ 0.000000] node 0: [mem 0x0000000100000000-0x000000021fffffff] [ 0.000000] Initmem setup node 0 [mem 0x0000000000001000-0x000000021fffffff] [ 0.000000] kasan: KernelAddressSanitizer initialized [ 0.000000] ACPI: PM-Timer IO Port: 0xb008 [ 0.000000] ACPI: LAPIC_NMI (acpi_id[0xff] dfl dfl lint[0x1]) [ 0.000000] IOAPIC[0]: apic_id 0, version 17, address 0xfec00000, GSI 0-23 [ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 5 global_irq 5 high level) [ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 9 global_irq 9 high level) [ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 10 global_irq 10 high level) [ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 11 global_irq 11 high level) [ 0.000000] Using ACPI (MADT) for SMP configuration information [ 0.000000] smpboot: Allowing 2 CPUs, 0 hotplug CPUs [ 0.000000] PM: Registered nosave memory: [mem 0x00000000-0x00000fff] [ 0.000000] PM: Registered nosave memory: [mem 0x0009f000-0x0009ffff] [ 0.000000] PM: Registered nosave memory: [mem 0x000a0000-0x000effff] [ 0.000000] PM: Registered nosave memory: [mem 0x000f0000-0x000fffff] [ 0.000000] PM: Registered nosave memory: [mem 0xbfffd000-0xbfffffff] [ 0.000000] PM: Registered nosave memory: [mem 0xc0000000-0xfffbbfff] [ 0.000000] PM: Registered nosave memory: [mem 0xfffbc000-0xffffffff] [ 0.000000] e820: [mem 0xc0000000-0xfffbbfff] available for PCI devices [ 0.000000] Booting paravirtualized kernel on KVM [ 0.000000] clocksource: refined-jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604462750000 ns [ 0.000000] setup_percpu: NR_CPUS:64 nr_cpumask_bits:64 nr_cpu_ids:2 nr_node_ids:1 [ 0.000000] PERCPU: Embedded 42 pages/cpu @ffff8801db200000 s132680 r8192 d31160 u1048576 [ 0.000000] Built 1 zonelists in Zone order, mobility grouping on. Total pages: 1935238 [ 0.000000] Kernel command line: BOOT_IMAGE=/vmlinuz root=/dev/sda1 console=ttyS0 earlyprintk=serial vsyscall=native rodata=n ftrace_dump_on_oops=orig_cpu oops=panic panic_on_warn=1 nmi_watchdog=panic panic=86400 workqueue.watchdog_thresh=120 [ 0.000000] PID hash table entries: 4096 (order: 3, 32768 bytes) [ 0.000000] Dentry cache hash table entries: 1048576 (order: 11, 8388608 bytes) [ 0.000000] Inode-cache hash table entries: 524288 (order: 10, 4194304 bytes) [ 0.000000] ================================================================== [ 0.000000] BUG: KASAN: stack-out-of-bounds in reserve_bootmem_region+0xdf/0x130 [ 0.000000] Write of size 8 at addr ffffea0000047ce0 by task swapper/0 [ 0.000000] [ 0.000000] CPU: 0 PID: 0 Comm: swapper Not tainted 4.4.108-g55b3b8c #7 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 7b254cf18c2c9b71 ffffffff84207ce8 ffffffff81d02e5d [ 0.000000] ffffea0000047ce0 ffffea0000047ce0 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d20 ffffffff814fb329 ffffea0000047ce0 [ 0.000000] Call Trace: [ 0.000000] [] dump_stack+0xc1/0x124 [ 0.000000] [] print_address_description+0x189/0x260 [ 0.000000] [] kasan_report+0x285/0x370 [ 0.000000] [] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] free_all_bootmem+0xf2/0x24d [ 0.000000] [] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [] ? dmar_table_detect+0x60/0x60 [ 0.000000] [] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [] mem_init+0x13/0x74 [ 0.000000] [] start_kernel+0x31d/0x6e9 [ 0.000000] [] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [] x86_64_start_kernel+0x140/0x163 [ 0.000000] [ 0.000000] [ 0.000000] Memory state around the buggy address: [ 0.000000] ffffea0000047b80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ffffea0000047c00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] >ffffea0000047c80: 00 00 00 00 00 00 f1 f1 f1 f1 00 00 f2 f2 00 00 [ 0.000000] ^ [ 0.000000] ffffea0000047d00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ffffea0000047d80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ================================================================== [ 0.000000] Disabling lock debugging due to kernel taint [ 0.000000] Kernel panic - not syncing: panic_on_warn set ... [ 0.000000] [ 0.000000] CPU: 0 PID: 0 Comm: swapper Tainted: G B 4.4.108-g55b3b8c #7 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 7b254cf18c2c9b71 ffffffff84207c40 ffffffff81d02e5d [ 0.000000] ffffffff83fb34b5 ffffffff84207d18 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d08 ffffffff81417caa 0000000041b58ab3 [ 0.000000] Call Trace: [ 0.000000] [] dump_stack+0xc1/0x124 [ 0.000000] [] panic+0x1aa/0x388 [ 0.000000] [] ? percpu_up_read.constprop.45+0xe1/0xe1 [ 0.000000] [] kasan_end_report+0x50/0x50 [ 0.000000] [] kasan_report+0x15c/0x370 [ 0.000000] [] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] free_all_bootmem+0xf2/0x24d [ 0.000000] [] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [] ? dmar_table_detect+0x60/0x60 [ 0.000000] [] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [] mem_init+0x13/0x74 [ 0.000000] [] start_kernel+0x31d/0x6e9 [ 0.000000] [] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [] x86_64_start_kernel+0x140/0x163 [ 0.000000] Rebooting in 86400 seconds.. [ 0.000000] ACPI MEMORY or I/O RESET_REG. SeaBIOS (version 1.8.2-20171012_061934-google) Total RAM Size = 0x00000001e0000000 = 7680 MiB CPUs found: 2 Max CPUs supported: 2 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 0x000f3050: PCHS=0/0/0 translation=lba LCHS=520/128/63 s=4194304 Booting from Hard Disk 0... early console in decompress_kernel input_data: 0x00000000039be26e input_len: 0x0000000001424e03 output: 0x0000000001000000 output_len: 0x0000000003dcea40 run_size: 0x0000000005504000 Decompressing Linux... Parsing ELF... done. Booting the kernel. [ 0.000000] Initializing cgroup subsys cpuset [ 0.000000] Initializing cgroup subsys cpu [ 0.000000] Initializing cgroup subsys cpuacct [ 0.000000] Initializing cgroup subsys schedtune [ 0.000000] Linux version 4.4.108-g55b3b8c (syzkaller@ci) (gcc version 7.1.1 20170620 (GCC) ) #7 SMP PREEMPT Fri Dec 29 21:50:38 UTC 2017 [ 0.000000] Command line: BOOT_IMAGE=/vmlinuz root=/dev/sda1 console=ttyS0 earlyprintk=serial vsyscall=native rodata=n ftrace_dump_on_oops=orig_cpu oops=panic panic_on_warn=1 nmi_watchdog=panic panic=86400 workqueue.watchdog_thresh=120 [ 0.000000] KERNEL supported cpus: [ 0.000000] Intel GenuineIntel [ 0.000000] AMD AuthenticAMD [ 0.000000] Centaur CentaurHauls [ 0.000000] x86/fpu: xstate_offset[2]: 576, xstate_sizes[2]: 256 [ 0.000000] x86/fpu: Supporting XSAVE feature 0x01: 'x87 floating point registers' [ 0.000000] x86/fpu: Supporting XSAVE feature 0x02: 'SSE registers' [ 0.000000] x86/fpu: Supporting XSAVE feature 0x04: 'AVX registers' [ 0.000000] x86/fpu: Enabled xstate features 0x7, context size is 832 bytes, using 'standard' format. [ 0.000000] x86/fpu: Using 'eager' FPU context switches. [ 0.000000] e820: BIOS-provided physical RAM map: [ 0.000000] BIOS-e820: [mem 0x0000000000000000-0x000000000009fbff] usable [ 0.000000] BIOS-e820: [mem 0x000000000009fc00-0x000000000009ffff] reserved [ 0.000000] BIOS-e820: [mem 0x00000000000f0000-0x00000000000fffff] reserved [ 0.000000] BIOS-e820: [mem 0x0000000000100000-0x00000000bfffcfff] usable [ 0.000000] BIOS-e820: [mem 0x00000000bfffd000-0x00000000bfffffff] reserved [ 0.000000] BIOS-e820: [mem 0x00000000fffbc000-0x00000000ffffffff] reserved [ 0.000000] BIOS-e820: [mem 0x0000000100000000-0x000000021fffffff] usable [ 0.000000] bootconsole [earlyser0] enabled [ 0.000000] NX (Execute Disable) protection: active [ 0.000000] SMBIOS 2.4 present. [ 0.000000] Hypervisor detected: KVM [ 0.000000] e820: last_pfn = 0x220000 max_arch_pfn = 0x400000000 [ 0.000000] x86/PAT: Configuration [0-7]: WB WC UC- UC WB WC UC- WT [ 0.000000] e820: last_pfn = 0xbfffd max_arch_pfn = 0x400000000 [ 0.000000] found SMP MP-table at [mem 0x000f32c0-0x000f32cf] mapped at [ffff8800000f32c0] [ 0.000000] Scanning 1 areas for low memory corruption [ 0.000000] Using GB pages for direct mapping [ 0.000000] ACPI: Early table checksum verification disabled [ 0.000000] ACPI: RSDP 0x00000000000F3090 000014 (v00 Google) [ 0.000000] ACPI: RSDT 0x00000000BFFFDC70 000034 (v01 Google GOOGRSDT 00000001 GOOG 00000001) [ 0.000000] ACPI: FACP 0x00000000BFFFFF00 0000F4 (v02 Google GOOGFACP 00000001 GOOG 00000001) [ 0.000000] ACPI: DSDT 0x00000000BFFFDCB0 0017B2 (v01 Google GOOGDSDT 00000001 GOOG 00000001) [ 0.000000] ACPI: FACS 0x00000000BFFFFEC0 000040 [ 0.000000] ACPI: FACS 0x00000000BFFFFEC0 000040 [ 0.000000] ACPI: SSDT 0x00000000BFFFF590 000930 (v01 Google GOOGSSDT 00000001 GOOG 00000001) [ 0.000000] ACPI: APIC 0x00000000BFFFF4A0 000076 (v01 Google GOOGAPIC 00000001 GOOG 00000001) [ 0.000000] ACPI: WAET 0x00000000BFFFF470 000028 (v01 Google GOOGWAET 00000001 GOOG 00000001) [ 0.000000] kvm-clock: Using msrs 4b564d01 and 4b564d00 [ 0.000000] kvm-clock: cpu 0, msr 2:1fffd001, primary cpu clock [ 0.000000] kvm-clock: using sched offset of 1399559883 cycles [ 0.000000] clocksource: kvm-clock: mask: 0xffffffffffffffff max_cycles: 0x1cd42e4dffb, max_idle_ns: 881590591483 ns [ 0.000000] Zone ranges: [ 0.000000] DMA [mem 0x0000000000001000-0x0000000000ffffff] [ 0.000000] DMA32 [mem 0x0000000001000000-0x00000000ffffffff] [ 0.000000] Normal [mem 0x0000000100000000-0x000000021fffffff] [ 0.000000] Movable zone start for each node [ 0.000000] Early memory node ranges [ 0.000000] node 0: [mem 0x0000000000001000-0x000000000009efff] [ 0.000000] node 0: [mem 0x0000000000100000-0x00000000bfffcfff] [ 0.000000] node 0: [mem 0x0000000100000000-0x000000021fffffff] [ 0.000000] Initmem setup node 0 [mem 0x0000000000001000-0x000000021fffffff] [ 0.000000] kasan: KernelAddressSanitizer initialized [ 0.000000] ACPI: PM-Timer IO Port: 0xb008 [ 0.000000] ACPI: LAPIC_NMI (acpi_id[0xff] dfl dfl lint[0x1]) [ 0.000000] IOAPIC[0]: apic_id 0, version 17, address 0xfec00000, GSI 0-23 [ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 5 global_irq 5 high level) [ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 9 global_irq 9 high level) [ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 10 global_irq 10 high level) [ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 11 global_irq 11 high level) [ 0.000000] Using ACPI (MADT) for SMP configuration information [ 0.000000] smpboot: Allowing 2 CPUs, 0 hotplug CPUs [ 0.000000] PM: Registered nosave memory: [mem 0x00000000-0x00000fff] [ 0.000000] PM: Registered nosave memory: [mem 0x0009f000-0x0009ffff] [ 0.000000] PM: Registered nosave memory: [mem 0x000a0000-0x000effff] [ 0.000000] PM: Registered nosave memory: [mem 0x000f0000-0x000fffff] [ 0.000000] PM: Registered nosave memory: [mem 0xbfffd000-0xbfffffff] [ 0.000000] PM: Registered nosave memory: [mem 0xc0000000-0xfffbbfff] [ 0.000000] PM: Registered nosave memory: [mem 0xfffbc000-0xffffffff] [ 0.000000] e820: [mem 0xc0000000-0xfffbbfff] available for PCI devices [ 0.000000] Booting paravirtualized kernel on KVM [ 0.000000] clocksource: refined-jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604462750000 ns [ 0.000000] setup_percpu: NR_CPUS:64 nr_cpumask_bits:64 nr_cpu_ids:2 nr_node_ids:1 [ 0.000000] PERCPU: Embedded 42 pages/cpu @ffff8801db200000 s132680 r8192 d31160 u1048576 [ 0.000000] Built 1 zonelists in Zone order, mobility grouping on. Total pages: 1935238 [ 0.000000] Kernel command line: BOOT_IMAGE=/vmlinuz root=/dev/sda1 console=ttyS0 earlyprintk=serial vsyscall=native rodata=n ftrace_dump_on_oops=orig_cpu oops=panic panic_on_warn=1 nmi_watchdog=panic panic=86400 workqueue.watchdog_thresh=120 [ 0.000000] PID hash table entries: 4096 (order: 3, 32768 bytes) [ 0.000000] Dentry cache hash table entries: 1048576 (order: 11, 8388608 bytes) [ 0.000000] Inode-cache hash table entries: 524288 (order: 10, 4194304 bytes) [ 0.000000] ================================================================== [ 0.000000] BUG: KASAN: stack-out-of-bounds in reserve_bootmem_region+0xdf/0x130 [ 0.000000] Write of size 8 at addr ffffea0000047ce0 by task swapper/0 [ 0.000000] [ 0.000000] CPU: 0 PID: 0 Comm: swapper Not tainted 4.4.108-g55b3b8c #7 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 84248008952bce88 ffffffff84207ce8 ffffffff81d02e5d [ 0.000000] ffffea0000047ce0 ffffea0000047ce0 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d20 ffffffff814fb329 ffffea0000047ce0 [ 0.000000] Call Trace: [ 0.000000] [] dump_stack+0xc1/0x124 [ 0.000000] [] print_address_description+0x189/0x260 [ 0.000000] [] kasan_report+0x285/0x370 [ 0.000000] [] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] free_all_bootmem+0xf2/0x24d [ 0.000000] [] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [] ? dmar_table_detect+0x60/0x60 [ 0.000000] [] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [] mem_init+0x13/0x74 [ 0.000000] [] start_kernel+0x31d/0x6e9 [ 0.000000] [] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [] x86_64_start_kernel+0x140/0x163 [ 0.000000] [ 0.000000] [ 0.000000] Memory state around the buggy address: [ 0.000000] ffffea0000047b80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ffffea0000047c00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] >ffffea0000047c80: 00 00 00 00 00 00 f1 f1 f1 f1 00 00 f2 f2 00 00 [ 0.000000] ^ [ 0.000000] ffffea0000047d00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ffffea0000047d80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ================================================================== [ 0.000000] Disabling lock debugging due to kernel taint [ 0.000000] Kernel panic - not syncing: panic_on_warn set ... [ 0.000000] [ 0.000000] CPU: 0 PID: 0 Comm: swapper Tainted: G B 4.4.108-g55b3b8c #7 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 84248008952bce88 ffffffff84207c40 ffffffff81d02e5d [ 0.000000] ffffffff83fb34b5 ffffffff84207d18 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d08 ffffffff81417caa 0000000041b58ab3 [ 0.000000] Call Trace: [ 0.000000] [] dump_stack+0xc1/0x124 [ 0.000000] [] panic+0x1aa/0x388 [ 0.000000] [] ? percpu_up_read.constprop.45+0xe1/0xe1 [ 0.000000] [] kasan_end_report+0x50/0x50 [ 0.000000] [] kasan_report+0x15c/0x370 [ 0.000000] [] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] free_all_bootmem+0xf2/0x24d [ 0.000000] [] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [] ? dmar_table_detect+0x60/0x60 [ 0.000000] [] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [] mem_init+0x13/0x74 [ 0.000000] [] start_kernel+0x31d/0x6e9 [ 0.000000] [] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [] x86_64_start_kernel+0x140/0x163 [ 0.000000] Rebooting in 86400 seconds.. [ 0.000000] ACPI MEMORY or I/O RESET_REG. SeaBIOS (version 1.8.2-20171012_061934-google) Total RAM Size = 0x00000001e0000000 = 7680 MiB CPUs found: 2 Max CPUs supported: 2 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 0x000f3050: PCHS=0/0/0 translation=lba LCHS=520/128/63 s=4194304 Booting from Hard Disk 0... early console in decompress_kernel input_data: 0x00000000039be26e input_len: 0x0000000001424e03 output: 0x0000000001000000 output_len: 0x0000000003dcea40 run_size: 0x0000000005504000 Decompressing Linux... Parsing ELF... done. Booting the kernel. [ 0.000000] Initializing cgroup subsys cpuset [ 0.000000] Initializing cgroup subsys cpu [ 0.000000] Initializing cgroup subsys cpuacct [ 0.000000] Initializing cgroup subsys schedtune [ 0.000000] Linux version 4.4.108-g55b3b8c (syzkaller@ci) (gcc version 7.1.1 20170620 (GCC) ) #7 SMP PREEMPT Fri Dec 29 21:50:38 UTC 2017 [ 0.000000] Command line: BOOT_IMAGE=/vmlinuz root=/dev/sda1 console=ttyS0 earlyprintk=serial vsyscall=native rodata=n ftrace_dump_on_oops=orig_cpu oops=panic panic_on_warn=1 nmi_watchdog=panic panic=86400 workqueue.watchdog_thresh=120 [ 0.000000] KERNEL supported cpus: [ 0.000000] Intel GenuineIntel [ 0.000000] AMD AuthenticAMD [ 0.000000] Centaur CentaurHauls [ 0.000000] x86/fpu: xstate_offset[2]: 576, xstate_sizes[2]: 256 [ 0.000000] x86/fpu: Supporting XSAVE feature 0x01: 'x87 floating point registers' [ 0.000000] x86/fpu: Supporting XSAVE feature 0x02: 'SSE registers' [ 0.000000] x86/fpu: Supporting XSAVE feature 0x04: 'AVX registers' [ 0.000000] x86/fpu: Enabled xstate features 0x7, context size is 832 bytes, using 'standard' format. [ 0.000000] x86/fpu: Using 'eager' FPU context switches. [ 0.000000] e820: BIOS-provided physical RAM map: [ 0.000000] BIOS-e820: [mem 0x0000000000000000-0x000000000009fbff] usable [ 0.000000] BIOS-e820: [mem 0x000000000009fc00-0x000000000009ffff] reserved [ 0.000000] BIOS-e820: [mem 0x00000000000f0000-0x00000000000fffff] reserved [ 0.000000] BIOS-e820: [mem 0x0000000000100000-0x00000000bfffcfff] usable [ 0.000000] BIOS-e820: [mem 0x00000000bfffd000-0x00000000bfffffff] reserved [ 0.000000] BIOS-e820: [mem 0x00000000fffbc000-0x00000000ffffffff] reserved [ 0.000000] BIOS-e820: [mem 0x0000000100000000-0x000000021fffffff] usable [ 0.000000] bootconsole [earlyser0] enabled [ 0.000000] NX (Execute Disable) protection: active [ 0.000000] SMBIOS 2.4 present. [ 0.000000] Hypervisor detected: KVM [ 0.000000] e820: last_pfn = 0x220000 max_arch_pfn = 0x400000000 [ 0.000000] x86/PAT: Configuration [0-7]: WB WC UC- UC WB WC UC- WT [ 0.000000] e820: last_pfn = 0xbfffd max_arch_pfn = 0x400000000 [ 0.000000] found SMP MP-table at [mem 0x000f32c0-0x000f32cf] mapped at [ffff8800000f32c0] [ 0.000000] Scanning 1 areas for low memory corruption [ 0.000000] Using GB pages for direct mapping [ 0.000000] ACPI: Early table checksum verification disabled [ 0.000000] ACPI: RSDP 0x00000000000F3090 000014 (v00 Google) [ 0.000000] ACPI: RSDT 0x00000000BFFFDC70 000034 (v01 Google GOOGRSDT 00000001 GOOG 00000001) [ 0.000000] ACPI: FACP 0x00000000BFFFFF00 0000F4 (v02 Google GOOGFACP 00000001 GOOG 00000001) [ 0.000000] ACPI: DSDT 0x00000000BFFFDCB0 0017B2 (v01 Google GOOGDSDT 00000001 GOOG 00000001) [ 0.000000] ACPI: FACS 0x00000000BFFFFEC0 000040 [ 0.000000] ACPI: FACS 0x00000000BFFFFEC0 000040 [ 0.000000] ACPI: SSDT 0x00000000BFFFF590 000930 (v01 Google GOOGSSDT 00000001 GOOG 00000001) [ 0.000000] ACPI: APIC 0x00000000BFFFF4A0 000076 (v01 Google GOOGAPIC 00000001 GOOG 00000001) [ 0.000000] ACPI: WAET 0x00000000BFFFF470 000028 (v01 Google GOOGWAET 00000001 GOOG 00000001) [ 0.000000] kvm-clock: Using msrs 4b564d01 and 4b564d00 [ 0.000000] kvm-clock: cpu 0, msr 2:1fffd001, primary cpu clock [ 0.000000] kvm-clock: using sched offset of 1313994002 cycles [ 0.000000] clocksource: kvm-clock: mask: 0xffffffffffffffff max_cycles: 0x1cd42e4dffb, max_idle_ns: 881590591483 ns [ 0.000000] Zone ranges: [ 0.000000] DMA [mem 0x0000000000001000-0x0000000000ffffff] [ 0.000000] DMA32 [mem 0x0000000001000000-0x00000000ffffffff] [ 0.000000] Normal [mem 0x0000000100000000-0x000000021fffffff] [ 0.000000] Movable zone start for each node [ 0.000000] Early memory node ranges [ 0.000000] node 0: [mem 0x0000000000001000-0x000000000009efff] [ 0.000000] node 0: [mem 0x0000000000100000-0x00000000bfffcfff] [ 0.000000] node 0: [mem 0x0000000100000000-0x000000021fffffff] [ 0.000000] Initmem setup node 0 [mem 0x0000000000001000-0x000000021fffffff] [ 0.000000] kasan: KernelAddressSanitizer initialized [ 0.000000] ACPI: PM-Timer IO Port: 0xb008 [ 0.000000] ACPI: LAPIC_NMI (acpi_id[0xff] dfl dfl lint[0x1]) [ 0.000000] IOAPIC[0]: apic_id 0, version 17, address 0xfec00000, GSI 0-23 [ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 5 global_irq 5 high level) [ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 9 global_irq 9 high level) [ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 10 global_irq 10 high level) [ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 11 global_irq 11 high level) [ 0.000000] Using ACPI (MADT) for SMP configuration information [ 0.000000] smpboot: Allowing 2 CPUs, 0 hotplug CPUs [ 0.000000] PM: Registered nosave memory: [mem 0x00000000-0x00000fff] [ 0.000000] PM: Registered nosave memory: [mem 0x0009f000-0x0009ffff] [ 0.000000] PM: Registered nosave memory: [mem 0x000a0000-0x000effff] [ 0.000000] PM: Registered nosave memory: [mem 0x000f0000-0x000fffff] [ 0.000000] PM: Registered nosave memory: [mem 0xbfffd000-0xbfffffff] [ 0.000000] PM: Registered nosave memory: [mem 0xc0000000-0xfffbbfff] [ 0.000000] PM: Registered nosave memory: [mem 0xfffbc000-0xffffffff] [ 0.000000] e820: [mem 0xc0000000-0xfffbbfff] available for PCI devices [ 0.000000] Booting paravirtualized kernel on KVM [ 0.000000] clocksource: refined-jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604462750000 ns [ 0.000000] setup_percpu: NR_CPUS:64 nr_cpumask_bits:64 nr_cpu_ids:2 nr_node_ids:1 [ 0.000000] PERCPU: Embedded 42 pages/cpu @ffff8801db200000 s132680 r8192 d31160 u1048576 [ 0.000000] Built 1 zonelists in Zone order, mobility grouping on. Total pages: 1935238 [ 0.000000] Kernel command line: BOOT_IMAGE=/vmlinuz root=/dev/sda1 console=ttyS0 earlyprintk=serial vsyscall=native rodata=n ftrace_dump_on_oops=orig_cpu oops=panic panic_on_warn=1 nmi_watchdog=panic panic=86400 workqueue.watchdog_thresh=120 [ 0.000000] PID hash table entries: 4096 (order: 3, 32768 bytes) [ 0.000000] Dentry cache hash table entries: 1048576 (order: 11, 8388608 bytes) [ 0.000000] Inode-cache hash table entries: 524288 (order: 10, 4194304 bytes) [ 0.000000] ================================================================== [ 0.000000] BUG: KASAN: stack-out-of-bounds in reserve_bootmem_region+0xdf/0x130 [ 0.000000] Write of size 8 at addr ffffea0000047ce0 by task swapper/0 [ 0.000000] [ 0.000000] CPU: 0 PID: 0 Comm: swapper Not tainted 4.4.108-g55b3b8c #7 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 785a04ef8961536f ffffffff84207ce8 ffffffff81d02e5d [ 0.000000] ffffea0000047ce0 ffffea0000047ce0 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d20 ffffffff814fb329 ffffea0000047ce0 [ 0.000000] Call Trace: [ 0.000000] [] dump_stack+0xc1/0x124 [ 0.000000] [] print_address_description+0x189/0x260 [ 0.000000] [] kasan_report+0x285/0x370 [ 0.000000] [] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] free_all_bootmem+0xf2/0x24d [ 0.000000] [] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [] ? dmar_table_detect+0x60/0x60 [ 0.000000] [] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [] mem_init+0x13/0x74 [ 0.000000] [] start_kernel+0x31d/0x6e9 [ 0.000000] [] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [] x86_64_start_kernel+0x140/0x163 [ 0.000000] [ 0.000000] [ 0.000000] Memory state around the buggy address: [ 0.000000] ffffea0000047b80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ffffea0000047c00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] >ffffea0000047c80: 00 00 00 00 00 00 f1 f1 f1 f1 00 00 f2 f2 00 00 [ 0.000000] ^ [ 0.000000] ffffea0000047d00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ffffea0000047d80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ================================================================== [ 0.000000] Disabling lock debugging due to kernel taint [ 0.000000] Kernel panic - not syncing: panic_on_warn set ... [ 0.000000] [ 0.000000] CPU: 0 PID: 0 Comm: swapper Tainted: G B 4.4.108-g55b3b8c #7 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 785a04ef8961536f ffffffff84207c40 ffffffff81d02e5d [ 0.000000] ffffffff83fb34b5 ffffffff84207d18 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d08 ffffffff81417caa 0000000041b58ab3 [ 0.000000] Call Trace: [ 0.000000] [] dump_stack+0xc1/0x124 [ 0.000000] [] panic+0x1aa/0x388 [ 0.000000] [] ? percpu_up_read.constprop.45+0xe1/0xe1 [ 0.000000] [] kasan_end_report+0x50/0x50 [ 0.000000] [] kasan_report+0x15c/0x370 [ 0.000000] [] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] free_all_bootmem+0xf2/0x24d [ 0.000000] [] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [] ? dmar_table_detect+0x60/0x60 [ 0.000000] [] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [] mem_init+0x13/0x74 [ 0.000000] [] start_kernel+0x31d/0x6e9 [ 0.000000] [] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [] x86_64_start_kernel+0x140/0x163 [ 0.000000] Rebooting in 86400 seconds.. [ 0.000000] ACPI MEMORY or I/O RESET_REG. SeaBIOS (version 1.8.2-20171012_061934-google) Total RAM Size = 0x00000001e0000000 = 7680 MiB CPUs found: 2 Max CPUs supported: 2 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 0x000f3050: PCHS=0/0/0 translation=lba LCHS=520/128/63 s=4194304 Booting from Hard Disk 0... early console in decompress_kernel input_data: 0x00000000039be26e input_len: 0x0000000001424e03 output: 0x0000000001000000 output_len: 0x0000000003dcea40 run_size: 0x0000000005504000 Decompressing Linux... Parsing ELF... done. Booting the kernel. [ 0.000000] Initializing cgroup subsys cpuset [ 0.000000] Initializing cgroup subsys cpu [ 0.000000] Initializing cgroup subsys cpuacct [ 0.000000] Initializing cgroup subsys schedtune [ 0.000000] Linux version 4.4.108-g55b3b8c (syzkaller@ci) (gcc version 7.1.1 20170620 (GCC) ) #7 SMP PREEMPT Fri Dec 29 21:50:38 UTC 2017 [ 0.000000] Command line: BOOT_IMAGE=/vmlinuz root=/dev/sda1 console=ttyS0 earlyprintk=serial vsyscall=native rodata=n ftrace_dump_on_oops=orig_cpu oops=panic panic_on_warn=1 nmi_watchdog=panic panic=86400 workqueue.watchdog_thresh=120 [ 0.000000] KERNEL supported cpus: [ 0.000000] Intel GenuineIntel [ 0.000000] AMD AuthenticAMD [ 0.000000] Centaur CentaurHauls [ 0.000000] x86/fpu: xstate_offset[2]: 576, xstate_sizes[2]: 256 [ 0.000000] x86/fpu: Supporting XSAVE feature 0x01: 'x87 floating point registers' [ 0.000000] x86/fpu: Supporting XSAVE feature 0x02: 'SSE registers' [ 0.000000] x86/fpu: Supporting XSAVE feature 0x04: 'AVX registers' [ 0.000000] x86/fpu: Enabled xstate features 0x7, context size is 832 bytes, using 'standard' format. [ 0.000000] x86/fpu: Using 'eager' FPU context switches. [ 0.000000] e820: BIOS-provided physical RAM map: [ 0.000000] BIOS-e820: [mem 0x0000000000000000-0x000000000009fbff] usable [ 0.000000] BIOS-e820: [mem 0x000000000009fc00-0x000000000009ffff] reserved [ 0.000000] BIOS-e820: [mem 0x00000000000f0000-0x00000000000fffff] reserved [ 0.000000] BIOS-e820: [mem 0x0000000000100000-0x00000000bfffcfff] usable [ 0.000000] BIOS-e820: [mem 0x00000000bfffd000-0x00000000bfffffff] reserved [ 0.000000] BIOS-e820: [mem 0x00000000fffbc000-0x00000000ffffffff] reserved [ 0.000000] BIOS-e820: [mem 0x0000000100000000-0x000000021fffffff] usable [ 0.000000] bootconsole [earlyser0] enabled [ 0.000000] NX (Execute Disable) protection: active [ 0.000000] SMBIOS 2.4 present. [ 0.000000] Hypervisor detected: KVM [ 0.000000] e820: last_pfn = 0x220000 max_arch_pfn = 0x400000000 [ 0.000000] x86/PAT: Configuration [0-7]: WB WC UC- UC WB WC UC- WT [ 0.000000] e820: last_pfn = 0xbfffd max_arch_pfn = 0x400000000 [ 0.000000] found SMP MP-table at [mem 0x000f32c0-0x000f32cf] mapped at [ffff8800000f32c0] [ 0.000000] Scanning 1 areas for low memory corruption [ 0.000000] Using GB pages for direct mapping [ 0.000000] ACPI: Early table checksum verification disabled [ 0.000000] ACPI: RSDP 0x00000000000F3090 000014 (v00 Google) [ 0.000000] ACPI: RSDT 0x00000000BFFFDC70 000034 (v01 Google GOOGRSDT 00000001 GOOG 00000001) [ 0.000000] ACPI: FACP 0x00000000BFFFFF00 0000F4 (v02 Google GOOGFACP 00000001 GOOG 00000001) [ 0.000000] ACPI: DSDT 0x00000000BFFFDCB0 0017B2 (v01 Google GOOGDSDT 00000001 GOOG 00000001) [ 0.000000] ACPI: FACS 0x00000000BFFFFEC0 000040 [ 0.000000] ACPI: FACS 0x00000000BFFFFEC0 000040 [ 0.000000] ACPI: SSDT 0x00000000BFFFF590 000930 (v01 Google GOOGSSDT 00000001 GOOG 00000001) [ 0.000000] ACPI: APIC 0x00000000BFFFF4A0 000076 (v01 Google GOOGAPIC 00000001 GOOG 00000001) [ 0.000000] ACPI: WAET 0x00000000BFFFF470 000028 (v01 Google GOOGWAET 00000001 GOOG 00000001) [ 0.000000] kvm-clock: Using msrs 4b564d01 and 4b564d00 [ 0.000000] kvm-clock: cpu 0, msr 2:1fffd001, primary cpu clock [ 0.000000] kvm-clock: using sched offset of 1367943551 cycles [ 0.000000] clocksource: kvm-clock: mask: 0xffffffffffffffff max_cycles: 0x1cd42e4dffb, max_idle_ns: 881590591483 ns [ 0.000000] Zone ranges: [ 0.000000] DMA [mem 0x0000000000001000-0x0000000000ffffff] [ 0.000000] DMA32 [mem 0x0000000001000000-0x00000000ffffffff] [ 0.000000] Normal [mem 0x0000000100000000-0x000000021fffffff] [ 0.000000] Movable zone start for each node [ 0.000000] Early memory node ranges [ 0.000000] node 0: [mem 0x0000000000001000-0x000000000009efff] [ 0.000000] node 0: [mem 0x0000000000100000-0x00000000bfffcfff] [ 0.000000] node 0: [mem 0x0000000100000000-0x000000021fffffff] [ 0.000000] Initmem setup node 0 [mem 0x0000000000001000-0x000000021fffffff] [ 0.000000] kasan: KernelAddressSanitizer initialized [ 0.000000] ACPI: PM-Timer IO Port: 0xb008 [ 0.000000] ACPI: LAPIC_NMI (acpi_id[0xff] dfl dfl lint[0x1]) [ 0.000000] IOAPIC[0]: apic_id 0, version 17, address 0xfec00000, GSI 0-23 [ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 5 global_irq 5 high level) [ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 9 global_irq 9 high level) [ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 10 global_irq 10 high level) [ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 11 global_irq 11 high level) [ 0.000000] Using ACPI (MADT) for SMP configuration information [ 0.000000] smpboot: Allowing 2 CPUs, 0 hotplug CPUs [ 0.000000] PM: Registered nosave memory: [mem 0x00000000-0x00000fff] [ 0.000000] PM: Registered nosave memory: [mem 0x0009f000-0x0009ffff] [ 0.000000] PM: Registered nosave memory: [mem 0x000a0000-0x000effff] [ 0.000000] PM: Registered nosave memory: [mem 0x000f0000-0x000fffff] [ 0.000000] PM: Registered nosave memory: [mem 0xbfffd000-0xbfffffff] [ 0.000000] PM: Registered nosave memory: [mem 0xc0000000-0xfffbbfff] [ 0.000000] PM: Registered nosave memory: [mem 0xfffbc000-0xffffffff] [ 0.000000] e820: [mem 0xc0000000-0xfffbbfff] available for PCI devices [ 0.000000] Booting paravirtualized kernel on KVM [ 0.000000] clocksource: refined-jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604462750000 ns [ 0.000000] setup_percpu: NR_CPUS:64 nr_cpumask_bits:64 nr_cpu_ids:2 nr_node_ids:1 [ 0.000000] PERCPU: Embedded 42 pages/cpu @ffff8801db200000 s132680 r8192 d31160 u1048576 [ 0.000000] Built 1 zonelists in Zone order, mobility grouping on. Total pages: 1935238 [ 0.000000] Kernel command line: BOOT_IMAGE=/vmlinuz root=/dev/sda1 console=ttyS0 earlyprintk=serial vsyscall=native rodata=n ftrace_dump_on_oops=orig_cpu oops=panic panic_on_warn=1 nmi_watchdog=panic panic=86400 workqueue.watchdog_thresh=120 [ 0.000000] PID hash table entries: 4096 (order: 3, 32768 bytes) [ 0.000000] Dentry cache hash table entries: 1048576 (order: 11, 8388608 bytes) [ 0.000000] Inode-cache hash table entries: 524288 (order: 10, 4194304 bytes) [ 0.000000] ================================================================== [ 0.000000] BUG: KASAN: stack-out-of-bounds in reserve_bootmem_region+0xdf/0x130 [ 0.000000] Write of size 8 at addr ffffea0000047ce0 by task swapper/0 [ 0.000000] [ 0.000000] CPU: 0 PID: 0 Comm: swapper Not tainted 4.4.108-g55b3b8c #7 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 7fba2da290c17c22 ffffffff84207ce8 ffffffff81d02e5d [ 0.000000] ffffea0000047ce0 ffffea0000047ce0 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d20 ffffffff814fb329 ffffea0000047ce0 [ 0.000000] Call Trace: [ 0.000000] [] dump_stack+0xc1/0x124 [ 0.000000] [] print_address_description+0x189/0x260 [ 0.000000] [] kasan_report+0x285/0x370 [ 0.000000] [] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] free_all_bootmem+0xf2/0x24d [ 0.000000] [] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [] ? dmar_table_detect+0x60/0x60 [ 0.000000] [] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [] mem_init+0x13/0x74 [ 0.000000] [] start_kernel+0x31d/0x6e9 [ 0.000000] [] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [] x86_64_start_kernel+0x140/0x163 [ 0.000000] [ 0.000000] [ 0.000000] Memory state around the buggy address: [ 0.000000] ffffea0000047b80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ffffea0000047c00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] >ffffea0000047c80: 00 00 00 00 00 00 f1 f1 f1 f1 00 00 f2 f2 00 00 [ 0.000000] ^ [ 0.000000] ffffea0000047d00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ffffea0000047d80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ================================================================== [ 0.000000] Disabling lock debugging due to kernel taint [ 0.000000] Kernel panic - not syncing: panic_on_warn set ... [ 0.000000] [ 0.000000] CPU: 0 PID: 0 Comm: swapper Tainted: G B 4.4.108-g55b3b8c #7 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 7fba2da290c17c22 ffffffff84207c40 ffffffff81d02e5d [ 0.000000] ffffffff83fb34b5 ffffffff84207d18 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d08 ffffffff81417caa 0000000041b58ab3 [ 0.000000] Call Trace: [ 0.000000] [] dump_stack+0xc1/0x124 [ 0.000000] [] panic+0x1aa/0x388 [ 0.000000] [] ? percpu_up_read.constprop.45+0xe1/0xe1 [ 0.000000] [] kasan_end_report+0x50/0x50 [ 0.000000] [] kasan_report+0x15c/0x370 [ 0.000000] [] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] free_all_bootmem+0xf2/0x24d [ 0.000000] [] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [] ? dmar_table_detect+0x60/0x60 [ 0.000000] [] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [] mem_init+0x13/0x74 [ 0.000000] [] start_kernel+0x31d/0x6e9 [ 0.000000] [] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [] x86_64_start_kernel+0x140/0x163 [ 0.000000] Rebooting in 86400 seconds.. [ 0.000000] ACPI MEMORY or I/O RESET_REG. SeaBIOS (version 1.8.2-20171012_061934-google) Total RAM Size = 0x00000001e0000000 = 7680 MiB CPUs found: 2 Max CPUs supported: 2 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 0x000f3050: PCHS=0/0/0 translation=lba LCHS=520/128/63 s=4194304 Booting from Hard Disk 0... early console in decompress_kernel input_data: 0x00000000039be26e input_len: 0x0000000001424e03 output: 0x0000000001000000 output_len: 0x0000000003dcea40 run_size: 0x0000000005504000 Decompressing Linux... Parsing ELF... done. Booting the kernel. [ 0.000000] Initializing cgroup subsys cpuset [ 0.000000] Initializing cgroup subsys cpu [ 0.000000] Initializing cgroup subsys cpuacct [ 0.000000] Initializing cgroup subsys schedtune [ 0.000000] Linux version 4.4.108-g55b3b8c (syzkaller@ci) (gcc version 7.1.1 20170620 (GCC) ) #7 SMP PREEMPT Fri Dec 29 21:50:38 UTC 2017 [ 0.000000] Command line: BOOT_IMAGE=/vmlinuz root=/dev/sda1 console=ttyS0 earlyprintk=serial vsyscall=native rodata=n ftrace_dump_on_oops=orig_cpu oops=panic panic_on_warn=1 nmi_watchdog=panic panic=86400 workqueue.watchdog_thresh=120 [ 0.000000] KERNEL supported cpus: [ 0.000000] Intel GenuineIntel [ 0.000000] AMD AuthenticAMD [ 0.000000] Centaur CentaurHauls [ 0.000000] x86/fpu: xstate_offset[2]: 576, xstate_sizes[2]: 256 [ 0.000000] x86/fpu: Supporting XSAVE feature 0x01: 'x87 floating point registers' [ 0.000000] x86/fpu: Supporting XSAVE feature 0x02: 'SSE registers' [ 0.000000] x86/fpu: Supporting XSAVE feature 0x04: 'AVX registers' [ 0.000000] x86/fpu: Enabled xstate features 0x7, context size is 832 bytes, using 'standard' format. [ 0.000000] x86/fpu: Using 'eager' FPU context switches. [ 0.000000] e820: BIOS-provided physical RAM map: [ 0.000000] BIOS-e820: [mem 0x0000000000000000-0x000000000009fbff] usable [ 0.000000] BIOS-e820: [mem 0x000000000009fc00-0x000000000009ffff] reserved [ 0.000000] BIOS-e820: [mem 0x00000000000f0000-0x00000000000fffff] reserved [ 0.000000] BIOS-e820: [mem 0x0000000000100000-0x00000000bfffcfff] usable [ 0.000000] BIOS-e820: [mem 0x00000000bfffd000-0x00000000bfffffff] reserved [ 0.000000] BIOS-e820: [mem 0x00000000fffbc000-0x00000000ffffffff] reserved [ 0.000000] BIOS-e820: [mem 0x0000000100000000-0x000000021fffffff] usable [ 0.000000] bootconsole [earlyser0] enabled [ 0.000000] NX (Execute Disable) protection: active [ 0.000000] SMBIOS 2.4 present. [ 0.000000] Hypervisor detected: KVM [ 0.000000] e820: last_pfn = 0x220000 max_arch_pfn = 0x400000000 [ 0.000000] x86/PAT: Configuration [0-7]: WB WC UC- UC WB WC UC- WT [ 0.000000] e820: last_pfn = 0xbfffd max_arch_pfn = 0x400000000 [ 0.000000] found SMP MP-table at [mem 0x000f32c0-0x000f32cf] mapped at [ffff8800000f32c0] [ 0.000000] Scanning 1 areas for low memory corruption [ 0.000000] Using GB pages for direct mapping [ 0.000000] ACPI: Early table checksum verification disabled [ 0.000000] ACPI: RSDP 0x00000000000F3090 000014 (v00 Google) [ 0.000000] ACPI: RSDT 0x00000000BFFFDC70 000034 (v01 Google GOOGRSDT 00000001 GOOG 00000001) [ 0.000000] ACPI: FACP 0x00000000BFFFFF00 0000F4 (v02 Google GOOGFACP 00000001 GOOG 00000001) [ 0.000000] ACPI: DSDT 0x00000000BFFFDCB0 0017B2 (v01 Google GOOGDSDT 00000001 GOOG 00000001) [ 0.000000] ACPI: FACS 0x00000000BFFFFEC0 000040 [ 0.000000] ACPI: FACS 0x00000000BFFFFEC0 000040 [ 0.000000] ACPI: SSDT 0x00000000BFFFF590 000930 (v01 Google GOOGSSDT 00000001 GOOG 00000001) [ 0.000000] ACPI: APIC 0x00000000BFFFF4A0 000076 (v01 Google GOOGAPIC 00000001 GOOG 00000001) [ 0.000000] ACPI: WAET 0x00000000BFFFF470 000028 (v01 Google GOOGWAET 00000001 GOOG 00000001) [ 0.000000] kvm-clock: Using msrs 4b564d01 and 4b564d00 [ 0.000000] kvm-clock: cpu 0, msr 2:1fffd001, primary cpu clock [ 0.000000] kvm-clock: using sched offset of 1378372325 cycles [ 0.000000] clocksource: kvm-clock: mask: 0xffffffffffffffff max_cycles: 0x1cd42e4dffb, max_idle_ns: 881590591483 ns [ 0.000000] Zone ranges: [ 0.000000] DMA [mem 0x0000000000001000-0x0000000000ffffff] [ 0.000000] DMA32 [mem 0x0000000001000000-0x00000000ffffffff] [ 0.000000] Normal [mem 0x0000000100000000-0x000000021fffffff] [ 0.000000] Movable zone start for each node [ 0.000000] Early memory node ranges [ 0.000000] node 0: [mem 0x0000000000001000-0x000000000009efff] [ 0.000000] node 0: [mem 0x0000000000100000-0x00000000bfffcfff] [ 0.000000] node 0: [mem 0x0000000100000000-0x000000021fffffff] [ 0.000000] Initmem setup node 0 [mem 0x0000000000001000-0x000000021fffffff] [ 0.000000] kasan: KernelAddressSanitizer initialized [ 0.000000] ACPI: PM-Timer IO Port: 0xb008 [ 0.000000] ACPI: LAPIC_NMI (acpi_id[0xff] dfl dfl lint[0x1]) [ 0.000000] IOAPIC[0]: apic_id 0, version 17, address 0xfec00000, GSI 0-23 [ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 5 global_irq 5 high level) [ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 9 global_irq 9 high level) [ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 10 global_irq 10 high level) [ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 11 global_irq 11 high level) [ 0.000000] Using ACPI (MADT) for SMP configuration information [ 0.000000] smpboot: Allowing 2 CPUs, 0 hotplug CPUs [ 0.000000] PM: Registered nosave memory: [mem 0x00000000-0x00000fff] [ 0.000000] PM: Registered nosave memory: [mem 0x0009f000-0x0009ffff] [ 0.000000] PM: Registered nosave memory: [mem 0x000a0000-0x000effff] [ 0.000000] PM: Registered nosave memory: [mem 0x000f0000-0x000fffff] [ 0.000000] PM: Registered nosave memory: [mem 0xbfffd000-0xbfffffff] [ 0.000000] PM: Registered nosave memory: [mem 0xc0000000-0xfffbbfff] [ 0.000000] PM: Registered nosave memory: [mem 0xfffbc000-0xffffffff] [ 0.000000] e820: [mem 0xc0000000-0xfffbbfff] available for PCI devices [ 0.000000] Booting paravirtualized kernel on KVM [ 0.000000] clocksource: refined-jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604462750000 ns [ 0.000000] setup_percpu: NR_CPUS:64 nr_cpumask_bits:64 nr_cpu_ids:2 nr_node_ids:1 [ 0.000000] PERCPU: Embedded 42 pages/cpu @ffff8801db200000 s132680 r8192 d31160 u1048576 [ 0.000000] Built 1 zonelists in Zone order, mobility grouping on. Total pages: 1935238 [ 0.000000] Kernel command line: BOOT_IMAGE=/vmlinuz root=/dev/sda1 console=ttyS0 earlyprintk=serial vsyscall=native rodata=n ftrace_dump_on_oops=orig_cpu oops=panic panic_on_warn=1 nmi_watchdog=panic panic=86400 workqueue.watchdog_thresh=120 [ 0.000000] PID hash table entries: 4096 (order: 3, 32768 bytes) [ 0.000000] Dentry cache hash table entries: 1048576 (order: 11, 8388608 bytes) [ 0.000000] Inode-cache hash table entries: 524288 (order: 10, 4194304 bytes) [ 0.000000] ================================================================== [ 0.000000] BUG: KASAN: stack-out-of-bounds in reserve_bootmem_region+0xdf/0x130 [ 0.000000] Write of size 8 at addr ffffea0000047ce0 by task swapper/0 [ 0.000000] [ 0.000000] CPU: 0 PID: 0 Comm: swapper Not tainted 4.4.108-g55b3b8c #7 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 810aed1792123b97 ffffffff84207ce8 ffffffff81d02e5d [ 0.000000] ffffea0000047ce0 ffffea0000047ce0 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d20 ffffffff814fb329 ffffea0000047ce0 [ 0.000000] Call Trace: [ 0.000000] [] dump_stack+0xc1/0x124 [ 0.000000] [] print_address_description+0x189/0x260 [ 0.000000] [] kasan_report+0x285/0x370 [ 0.000000] [] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] free_all_bootmem+0xf2/0x24d [ 0.000000] [] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [] ? dmar_table_detect+0x60/0x60 [ 0.000000] [] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [] mem_init+0x13/0x74 [ 0.000000] [] start_kernel+0x31d/0x6e9 [ 0.000000] [] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [] x86_64_start_kernel+0x140/0x163 [ 0.000000] [ 0.000000] [ 0.000000] Memory state around the buggy address: [ 0.000000] ffffea0000047b80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ffffea0000047c00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] >ffffea0000047c80: 00 00 00 00 00 00 f1 f1 f1 f1 00 00 f2 f2 00 00 [ 0.000000] ^ [ 0.000000] ffffea0000047d00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ffffea0000047d80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ================================================================== [ 0.000000] Disabling lock debugging due to kernel taint [ 0.000000] Kernel panic - not syncing: panic_on_warn set ... [ 0.000000] [ 0.000000] CPU: 0 PID: 0 Comm: swapper Tainted: G B 4.4.108-g55b3b8c #7 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 810aed1792123b97 ffffffff84207c40 ffffffff81d02e5d [ 0.000000] ffffffff83fb34b5 ffffffff84207d18 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d08 ffffffff81417caa 0000000041b58ab3 [ 0.000000] Call Trace: [ 0.000000] [] dump_stack+0xc1/0x124 [ 0.000000] [] panic+0x1aa/0x388 [ 0.000000] [] ? percpu_up_read.constprop.45+0xe1/0xe1 [ 0.000000] [] kasan_end_report+0x50/0x50 [ 0.000000] [] kasan_report+0x15c/0x370 [ 0.000000] [] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] free_all_bootmem+0xf2/0x24d [ 0.000000] [] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [] ? dmar_table_detect+0x60/0x60 [ 0.000000] [] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [] mem_init+0x13/0x74 [ 0.000000] [] start_kernel+0x31d/0x6e9 [ 0.000000] [] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [] x86_64_start_kernel+0x140/0x163 [ 0.000000] Rebooting in 86400 seconds.. [ 0.000000] ACPI MEMORY or I/O RESET_REG. SeaBIOS (version 1.8.2-20171012_061934-google) Total RAM Size = 0x00000001e0000000 = 7680 MiB CPUs found: 2 Max CPUs supported: 2 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 0x000f3050: PCHS=0/0/0 translation=lba LCHS=520/128/63 s=4194304 Booting from Hard Disk 0... early console in decompress_kernel input_data: 0x00000000039be26e input_len: 0x0000000001424e03 output: 0x0000000001000000 output_len: 0x0000000003dcea40 run_size: 0x0000000005504000 Decompressing Linux... Parsing ELF... done. Booting the kernel. [ 0.000000] Initializing cgroup subsys cpuset [ 0.000000] Initializing cgroup subsys cpu [ 0.000000] Initializing cgroup subsys cpuacct [ 0.000000] Initializing cgroup subsys schedtune [ 0.000000] Linux version 4.4.108-g55b3b8c (syzkaller@ci) (gcc version 7.1.1 20170620 (GCC) ) #7 SMP PREEMPT Fri Dec 29 21:50:38 UTC 2017 [ 0.000000] Command line: BOOT_IMAGE=/vmlinuz root=/dev/sda1 console=ttyS0 earlyprintk=serial vsyscall=native rodata=n ftrace_dump_on_oops=orig_cpu oops=panic panic_on_warn=1 nmi_watchdog=panic panic=86400 workqueue.watchdog_thresh=120 [ 0.000000] KERNEL supported cpus: [ 0.000000] Intel GenuineIntel [ 0.000000] AMD AuthenticAMD [ 0.000000] Centaur CentaurHauls [ 0.000000] x86/fpu: xstate_offset[2]: 576, xstate_sizes[2]: 256 [ 0.000000] x86/fpu: Supporting XSAVE feature 0x01: 'x87 floating point registers' [ 0.000000] x86/fpu: Supporting XSAVE feature 0x02: 'SSE registers' [ 0.000000] x86/fpu: Supporting XSAVE feature 0x04: 'AVX registers' [ 0.000000] x86/fpu: Enabled xstate features 0x7, context size is 832 bytes, using 'standard' format. [ 0.000000] x86/fpu: Using 'eager' FPU context switches. [ 0.000000] e820: BIOS-provided physical RAM map: [ 0.000000] BIOS-e820: [mem 0x0000000000000000-0x000000000009fbff] usable [ 0.000000] BIOS-e820: [mem 0x000000000009fc00-0x000000000009ffff] reserved [ 0.000000] BIOS-e820: [mem 0x00000000000f0000-0x00000000000fffff] reserved [ 0.000000] BIOS-e820: [mem 0x0000000000100000-0x00000000bfffcfff] usable [ 0.000000] BIOS-e820: [mem 0x00000000bfffd000-0x00000000bfffffff] reserved [ 0.000000] BIOS-e820: [mem 0x00000000fffbc000-0x00000000ffffffff] reserved [ 0.000000] BIOS-e820: [mem 0x0000000100000000-0x000000021fffffff] usable [ 0.000000] bootconsole [earlyser0] enabled [ 0.000000] NX (Execute Disable) protection: active [ 0.000000] SMBIOS 2.4 present. [ 0.000000] Hypervisor detected: KVM [ 0.000000] e820: last_pfn = 0x220000 max_arch_pfn = 0x400000000 [ 0.000000] x86/PAT: Configuration [0-7]: WB WC UC- UC WB WC UC- WT [ 0.000000] e820: last_pfn = 0xbfffd max_arch_pfn = 0x400000000 [ 0.000000] found SMP MP-table at [mem 0x000f32c0-0x000f32cf] mapped at [ffff8800000f32c0] [ 0.000000] Scanning 1 areas for low memory corruption [ 0.000000] Using GB pages for direct mapping [ 0.000000] ACPI: Early table checksum verification disabled [ 0.000000] ACPI: RSDP 0x00000000000F3090 000014 (v00 Google) [ 0.000000] ACPI: RSDT 0x00000000BFFFDC70 000034 (v01 Google GOOGRSDT 00000001 GOOG 00000001) [ 0.000000] ACPI: FACP 0x00000000BFFFFF00 0000F4 (v02 Google GOOGFACP 00000001 GOOG 00000001) [ 0.000000] ACPI: DSDT 0x00000000BFFFDCB0 0017B2 (v01 Google GOOGDSDT 00000001 GOOG 00000001) [ 0.000000] ACPI: FACS 0x00000000BFFFFEC0 000040 [ 0.000000] ACPI: FACS 0x00000000BFFFFEC0 000040 [ 0.000000] ACPI: SSDT 0x00000000BFFFF590 000930 (v01 Google GOOGSSDT 00000001 GOOG 00000001) [ 0.000000] ACPI: APIC 0x00000000BFFFF4A0 000076 (v01 Google GOOGAPIC 00000001 GOOG 00000001) [ 0.000000] ACPI: WAET 0x00000000BFFFF470 000028 (v01 Google GOOGWAET 00000001 GOOG 00000001) [ 0.000000] kvm-clock: Using msrs 4b564d01 and 4b564d00 [ 0.000000] kvm-clock: cpu 0, msr 2:1fffd001, primary cpu clock [ 0.000000] kvm-clock: using sched offset of 1263830022 cycles [ 0.000000] clocksource: kvm-clock: mask: 0xffffffffffffffff max_cycles: 0x1cd42e4dffb, max_idle_ns: 881590591483 ns [ 0.000000] Zone ranges: [ 0.000000] DMA [mem 0x0000000000001000-0x0000000000ffffff] [ 0.000000] DMA32 [mem 0x0000000001000000-0x00000000ffffffff] [ 0.000000] Normal [mem 0x0000000100000000-0x000000021fffffff] [ 0.000000] Movable zone start for each node [ 0.000000] Early memory node ranges [ 0.000000] node 0: [mem 0x0000000000001000-0x000000000009efff] [ 0.000000] node 0: [mem 0x0000000000100000-0x00000000bfffcfff] [ 0.000000] node 0: [mem 0x0000000100000000-0x000000021fffffff] [ 0.000000] Initmem setup node 0 [mem 0x0000000000001000-0x000000021fffffff] [ 0.000000] kasan: KernelAddressSanitizer initialized [ 0.000000] ACPI: PM-Timer IO Port: 0xb008 [ 0.000000] ACPI: LAPIC_NMI (acpi_id[0xff] dfl dfl lint[0x1]) [ 0.000000] IOAPIC[0]: apic_id 0, version 17, address 0xfec00000, GSI 0-23 [ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 5 global_irq 5 high level) [ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 9 global_irq 9 high level) [ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 10 global_irq 10 high level) [ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 11 global_irq 11 high level) [ 0.000000] Using ACPI (MADT) for SMP configuration information [ 0.000000] smpboot: Allowing 2 CPUs, 0 hotplug CPUs [ 0.000000] PM: Registered nosave memory: [mem 0x00000000-0x00000fff] [ 0.000000] PM: Registered nosave memory: [mem 0x0009f000-0x0009ffff] [ 0.000000] PM: Registered nosave memory: [mem 0x000a0000-0x000effff] [ 0.000000] PM: Registered nosave memory: [mem 0x000f0000-0x000fffff] [ 0.000000] PM: Registered nosave memory: [mem 0xbfffd000-0xbfffffff] [ 0.000000] PM: Registered nosave memory: [mem 0xc0000000-0xfffbbfff] [ 0.000000] PM: Registered nosave memory: [mem 0xfffbc000-0xffffffff] [ 0.000000] e820: [mem 0xc0000000-0xfffbbfff] available for PCI devices [ 0.000000] Booting paravirtualized kernel on KVM [ 0.000000] clocksource: refined-jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604462750000 ns [ 0.000000] setup_percpu: NR_CPUS:64 nr_cpumask_bits:64 nr_cpu_ids:2 nr_node_ids:1 [ 0.000000] PERCPU: Embedded 42 pages/cpu @ffff8801db200000 s132680 r8192 d31160 u1048576 [ 0.000000] Built 1 zonelists in Zone order, mobility grouping on. Total pages: 1935238 [ 0.000000] Kernel command line: BOOT_IMAGE=/vmlinuz root=/dev/sda1 console=ttyS0 earlyprintk=serial vsyscall=native rodata=n ftrace_dump_on_oops=orig_cpu oops=panic panic_on_warn=1 nmi_watchdog=panic panic=86400 workqueue.watchdog_thresh=120 [ 0.000000] PID hash table entries: 4096 (order: 3, 32768 bytes) [ 0.000000] Dentry cache hash table entries: 1048576 (order: 11, 8388608 bytes) [ 0.000000] Inode-cache hash table entries: 524288 (order: 10, 4194304 bytes) [ 0.000000] ================================================================== [ 0.000000] BUG: KASAN: stack-out-of-bounds in reserve_bootmem_region+0xdf/0x130 [ 0.000000] Write of size 8 at addr ffffea0000047ce0 by task swapper/0 [ 0.000000] [ 0.000000] CPU: 0 PID: 0 Comm: swapper Not tainted 4.4.108-g55b3b8c #7 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 716271ac8269c02c ffffffff84207ce8 ffffffff81d02e5d [ 0.000000] ffffea0000047ce0 ffffea0000047ce0 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d20 ffffffff814fb329 ffffea0000047ce0 [ 0.000000] Call Trace: [ 0.000000] [] dump_stack+0xc1/0x124 [ 0.000000] [] print_address_description+0x189/0x260 [ 0.000000] [] kasan_report+0x285/0x370 [ 0.000000] [] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] free_all_bootmem+0xf2/0x24d [ 0.000000] [] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [] ? dmar_table_detect+0x60/0x60 [ 0.000000] [] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [] mem_init+0x13/0x74 [ 0.000000] [] start_kernel+0x31d/0x6e9 [ 0.000000] [] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [] x86_64_start_kernel+0x140/0x163 [ 0.000000] [ 0.000000] [ 0.000000] Memory state around the buggy address: [ 0.000000] ffffea0000047b80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ffffea0000047c00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] >ffffea0000047c80: 00 00 00 00 00 00 f1 f1 f1 f1 00 00 f2 f2 00 00 [ 0.000000] ^ [ 0.000000] ffffea0000047d00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ffffea0000047d80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ================================================================== [ 0.000000] Disabling lock debugging due to kernel taint [ 0.000000] Kernel panic - not syncing: panic_on_warn set ... [ 0.000000] [ 0.000000] CPU: 0 PID: 0 Comm: swapper Tainted: G B 4.4.108-g55b3b8c #7 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 716271ac8269c02c ffffffff84207c40 ffffffff81d02e5d [ 0.000000] ffffffff83fb34b5 ffffffff84207d18 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d08 ffffffff81417caa 0000000041b58ab3 [ 0.000000] Call Trace: [ 0.000000] [] dump_stack+0xc1/0x124 [ 0.000000] [] panic+0x1aa/0x388 [ 0.000000] [] ? percpu_up_read.constprop.45+0xe1/0xe1 [ 0.000000] [] kasan_end_report+0x50/0x50 [ 0.000000] [] kasan_report+0x15c/0x370 [ 0.000000] [] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] free_all_bootmem+0xf2/0x24d [ 0.000000] [] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [] ? dmar_table_detect+0x60/0x60 [ 0.000000] [] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [] mem_init+0x13/0x74 [ 0.000000] [] start_kernel+0x31d/0x6e9 [ 0.000000] [] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [] x86_64_start_kernel+0x140/0x163 [ 0.000000] Rebooting in 86400 seconds.. [ 0.000000] ACPI MEMORY or I/O RESET_REG. SeaBIOS (version 1.8.2-20171012_061934-google) Total RAM Size = 0x00000001e0000000 = 7680 MiB CPUs found: 2 Max CPUs supported: 2 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 0x000f3050: PCHS=0/0/0 translation=lba LCHS=520/128/63 s=4194304 Booting from Hard Disk 0... early console in decompress_kernel input_data: 0x00000000039be26e input_len: 0x0000000001424e03 output: 0x0000000001000000 output_len: 0x0000000003dcea40 run_size: 0x0000000005504000 Decompressing Linux... Parsing ELF... done. Booting the kernel. [ 0.000000] Initializing cgroup subsys cpuset [ 0.000000] Initializing cgroup subsys cpu [ 0.000000] Initializing cgroup subsys cpuacct [ 0.000000] Initializing cgroup subsys schedtune [ 0.000000] Linux version 4.4.108-g55b3b8c (syzkaller@ci) (gcc version 7.1.1 20170620 (GCC) ) #7 SMP PREEMPT Fri Dec 29 21:50:38 UTC 2017 [ 0.000000] Command line: BOOT_IMAGE=/vmlinuz root=/dev/sda1 console=ttyS0 earlyprintk=serial vsyscall=native rodata=n ftrace_dump_on_oops=orig_cpu oops=panic panic_on_warn=1 nmi_watchdog=panic panic=86400 workqueue.watchdog_thresh=120 [ 0.000000] KERNEL supported cpus: [ 0.000000] Intel GenuineIntel [ 0.000000] AMD AuthenticAMD [ 0.000000] Centaur CentaurHauls [ 0.000000] x86/fpu: xstate_offset[2]: 576, xstate_sizes[2]: 256 [ 0.000000] x86/fpu: Supporting XSAVE feature 0x01: 'x87 floating point registers' [ 0.000000] x86/fpu: Supporting XSAVE feature 0x02: 'SSE registers' [ 0.000000] x86/fpu: Supporting XSAVE feature 0x04: 'AVX registers' [ 0.000000] x86/fpu: Enabled xstate features 0x7, context size is 832 bytes, using 'standard' format. [ 0.000000] x86/fpu: Using 'eager' FPU context switches. [ 0.000000] e820: BIOS-provided physical RAM map: [ 0.000000] BIOS-e820: [mem 0x0000000000000000-0x000000000009fbff] usable [ 0.000000] BIOS-e820: [mem 0x000000000009fc00-0x000000000009ffff] reserved [ 0.000000] BIOS-e820: [mem 0x00000000000f0000-0x00000000000fffff] reserved [ 0.000000] BIOS-e820: [mem 0x0000000000100000-0x00000000bfffcfff] usable [ 0.000000] BIOS-e820: [mem 0x00000000bfffd000-0x00000000bfffffff] reserved [ 0.000000] BIOS-e820: [mem 0x00000000fffbc000-0x00000000ffffffff] reserved [ 0.000000] BIOS-e820: [mem 0x0000000100000000-0x000000021fffffff] usable [ 0.000000] bootconsole [earlyser0] enabled [ 0.000000] NX (Execute Disable) protection: active [ 0.000000] SMBIOS 2.4 present. [ 0.000000] Hypervisor detected: KVM [ 0.000000] e820: last_pfn = 0x220000 max_arch_pfn = 0x400000000 [ 0.000000] x86/PAT: Configuration [0-7]: WB WC UC- UC WB WC UC- WT [ 0.000000] e820: last_pfn = 0xbfffd max_arch_pfn = 0x400000000 [ 0.000000] found SMP MP-table at [mem 0x000f32c0-0x000f32cf] mapped at [ffff8800000f32c0] [ 0.000000] Scanning 1 areas for low memory corruption [ 0.000000] Using GB pages for direct mapping [ 0.000000] ACPI: Early table checksum verification disabled [ 0.000000] ACPI: RSDP 0x00000000000F3090 000014 (v00 Google) [ 0.000000] ACPI: RSDT 0x00000000BFFFDC70 000034 (v01 Google GOOGRSDT 00000001 GOOG 00000001) [ 0.000000] ACPI: FACP 0x00000000BFFFFF00 0000F4 (v02 Google GOOGFACP 00000001 GOOG 00000001) [ 0.000000] ACPI: DSDT 0x00000000BFFFDCB0 0017B2 (v01 Google GOOGDSDT 00000001 GOOG 00000001) [ 0.000000] ACPI: FACS 0x00000000BFFFFEC0 000040 [ 0.000000] ACPI: FACS 0x00000000BFFFFEC0 000040 [ 0.000000] ACPI: SSDT 0x00000000BFFFF590 000930 (v01 Google GOOGSSDT 00000001 GOOG 00000001) [ 0.000000] ACPI: APIC 0x00000000BFFFF4A0 000076 (v01 Google GOOGAPIC 00000001 GOOG 00000001) [ 0.000000] ACPI: WAET 0x00000000BFFFF470 000028 (v01 Google GOOGWAET 00000001 GOOG 00000001) [ 0.000000] kvm-clock: Using msrs 4b564d01 and 4b564d00 [ 0.000000] kvm-clock: cpu 0, msr 2:1fffd001, primary cpu clock [ 0.000000] kvm-clock: using sched offset of 1378206075 cycles [ 0.000000] clocksource: kvm-clock: mask: 0xffffffffffffffff max_cycles: 0x1cd42e4dffb, max_idle_ns: 881590591483 ns [ 0.000000] Zone ranges: [ 0.000000] DMA [mem 0x0000000000001000-0x0000000000ffffff] [ 0.000000] DMA32 [mem 0x0000000001000000-0x00000000ffffffff] [ 0.000000] Normal [mem 0x0000000100000000-0x000000021fffffff] [ 0.000000] Movable zone start for each node [ 0.000000] Early memory node ranges [ 0.000000] node 0: [mem 0x0000000000001000-0x000000000009efff] [ 0.000000] node 0: [mem 0x0000000000100000-0x00000000bfffcfff] [ 0.000000] node 0: [mem 0x0000000100000000-0x000000021fffffff] [ 0.000000] Initmem setup node 0 [mem 0x0000000000001000-0x000000021fffffff] [ 0.000000] kasan: KernelAddressSanitizer initialized [ 0.000000] ACPI: PM-Timer IO Port: 0xb008 [ 0.000000] ACPI: LAPIC_NMI (acpi_id[0xff] dfl dfl lint[0x1]) [ 0.000000] IOAPIC[0]: apic_id 0, version 17, address 0xfec00000, GSI 0-23 [ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 5 global_irq 5 high level) [ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 9 global_irq 9 high level) [ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 10 global_irq 10 high level) [ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 11 global_irq 11 high level) [ 0.000000] Using ACPI (MADT) for SMP configuration information [ 0.000000] smpboot: Allowing 2 CPUs, 0 hotplug CPUs [ 0.000000] PM: Registered nosave memory: [mem 0x00000000-0x00000fff] [ 0.000000] PM: Registered nosave memory: [mem 0x0009f000-0x0009ffff] [ 0.000000] PM: Registered nosave memory: [mem 0x000a0000-0x000effff] [ 0.000000] PM: Registered nosave memory: [mem 0x000f0000-0x000fffff] [ 0.000000] PM: Registered nosave memory: [mem 0xbfffd000-0xbfffffff] [ 0.000000] PM: Registered nosave memory: [mem 0xc0000000-0xfffbbfff] [ 0.000000] PM: Registered nosave memory: [mem 0xfffbc000-0xffffffff] [ 0.000000] e820: [mem 0xc0000000-0xfffbbfff] available for PCI devices [ 0.000000] Booting paravirtualized kernel on KVM [ 0.000000] clocksource: refined-jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604462750000 ns [ 0.000000] setup_percpu: NR_CPUS:64 nr_cpumask_bits:64 nr_cpu_ids:2 nr_node_ids:1 [ 0.000000] PERCPU: Embedded 42 pages/cpu @ffff8801db200000 s132680 r8192 d31160 u1048576 [ 0.000000] Built 1 zonelists in Zone order, mobility grouping on. Total pages: 1935238 [ 0.000000] Kernel command line: BOOT_IMAGE=/vmlinuz root=/dev/sda1 console=ttyS0 earlyprintk=serial vsyscall=native rodata=n ftrace_dump_on_oops=orig_cpu oops=panic panic_on_warn=1 nmi_watchdog=panic panic=86400 workqueue.watchdog_thresh=120 [ 0.000000] PID hash table entries: 4096 (order: 3, 32768 bytes) [ 0.000000] Dentry cache hash table entries: 1048576 (order: 11, 8388608 bytes) [ 0.000000] Inode-cache hash table entries: 524288 (order: 10, 4194304 bytes) [ 0.000000] ================================================================== [ 0.000000] BUG: KASAN: stack-out-of-bounds in reserve_bootmem_region+0xdf/0x130 [ 0.000000] Write of size 8 at addr ffffea0000047ce0 by task swapper/0 [ 0.000000] [ 0.000000] CPU: 0 PID: 0 Comm: swapper Not tainted 4.4.108-g55b3b8c #7 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 812fd973923727f3 ffffffff84207ce8 ffffffff81d02e5d [ 0.000000] ffffea0000047ce0 ffffea0000047ce0 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d20 ffffffff814fb329 ffffea0000047ce0 [ 0.000000] Call Trace: [ 0.000000] [] dump_stack+0xc1/0x124 [ 0.000000] [] print_address_description+0x189/0x260 [ 0.000000] [] kasan_report+0x285/0x370 [ 0.000000] [] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] free_all_bootmem+0xf2/0x24d [ 0.000000] [] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [] ? dmar_table_detect+0x60/0x60 [ 0.000000] [] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [] mem_init+0x13/0x74 [ 0.000000] [] start_kernel+0x31d/0x6e9 [ 0.000000] [] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [] x86_64_start_kernel+0x140/0x163 [ 0.000000] [ 0.000000] [ 0.000000] Memory state around the buggy address: [ 0.000000] ffffea0000047b80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ffffea0000047c00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] >ffffea0000047c80: 00 00 00 00 00 00 f1 f1 f1 f1 00 00 f2 f2 00 00 [ 0.000000] ^ [ 0.000000] ffffea0000047d00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ffffea0000047d80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ================================================================== [ 0.000000] Disabling lock debugging due to kernel taint [ 0.000000] Kernel panic - not syncing: panic_on_warn set ... [ 0.000000] [ 0.000000] CPU: 0 PID: 0 Comm: swapper Tainted: G B 4.4.108-g55b3b8c #7 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 812fd973923727f3 ffffffff84207c40 ffffffff81d02e5d [ 0.000000] ffffffff83fb34b5 ffffffff84207d18 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d08 ffffffff81417caa 0000000041b58ab3 [ 0.000000] Call Trace: [ 0.000000] [] dump_stack+0xc1/0x124 [ 0.000000] [] panic+0x1aa/0x388 [ 0.000000] [] ? percpu_up_read.constprop.45+0xe1/0xe1 [ 0.000000] [] kasan_end_report+0x50/0x50 [ 0.000000] [] kasan_report+0x15c/0x370 [ 0.000000] [] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] free_all_bootmem+0xf2/0x24d [ 0.000000] [] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [] ? dmar_table_detect+0x60/0x60 [ 0.000000] [] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [] mem_init+0x13/0x74 [ 0.000000] [] start_kernel+0x31d/0x6e9 [ 0.000000] [] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [] x86_64_start_kernel+0x140/0x163 [ 0.000000] Rebooting in 86400 seconds.. [ 0.000000] ACPI MEMORY or I/O RESET_REG. SeaBIOS (version 1.8.2-20171012_061934-google) Total RAM Size = 0x00000001e0000000 = 7680 MiB CPUs found: 2 Max CPUs supported: 2 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 0x000f3050: PCHS=0/0/0 translation=lba LCHS=520/128/63 s=4194304 Booting from Hard Disk 0... early console in decompress_kernel input_data: 0x00000000039be26e input_len: 0x0000000001424e03 output: 0x0000000001000000 output_len: 0x0000000003dcea40 run_size: 0x0000000005504000 Decompressing Linux... Parsing ELF... done. Booting the kernel. [ 0.000000] Initializing cgroup subsys cpuset [ 0.000000] Initializing cgroup subsys cpu [ 0.000000] Initializing cgroup subsys cpuacct [ 0.000000] Initializing cgroup subsys schedtune [ 0.000000] Linux version 4.4.108-g55b3b8c (syzkaller@ci) (gcc version 7.1.1 20170620 (GCC) ) #7 SMP PREEMPT Fri Dec 29 21:50:38 UTC 2017 [ 0.000000] Command line: BOOT_IMAGE=/vmlinuz root=/dev/sda1 console=ttyS0 earlyprintk=serial vsyscall=native rodata=n ftrace_dump_on_oops=orig_cpu oops=panic panic_on_warn=1 nmi_watchdog=panic panic=86400 workqueue.watchdog_thresh=120 [ 0.000000] KERNEL supported cpus: [ 0.000000] Intel GenuineIntel [ 0.000000] AMD AuthenticAMD [ 0.000000] Centaur CentaurHauls [ 0.000000] x86/fpu: xstate_offset[2]: 576, xstate_sizes[2]: 256 [ 0.000000] x86/fpu: Supporting XSAVE feature 0x01: 'x87 floating point registers' [ 0.000000] x86/fpu: Supporting XSAVE feature 0x02: 'SSE registers' [ 0.000000] x86/fpu: Supporting XSAVE feature 0x04: 'AVX registers' [ 0.000000] x86/fpu: Enabled xstate features 0x7, context size is 832 bytes, using 'standard' format. [ 0.000000] x86/fpu: Using 'eager' FPU context switches. [ 0.000000] e820: BIOS-provided physical RAM map: [ 0.000000] BIOS-e820: [mem 0x0000000000000000-0x000000000009fbff] usable [ 0.000000] BIOS-e820: [mem 0x000000000009fc00-0x000000000009ffff] reserved [ 0.000000] BIOS-e820: [mem 0x00000000000f0000-0x00000000000fffff] reserved [ 0.000000] BIOS-e820: [mem 0x0000000000100000-0x00000000bfffcfff] usable [ 0.000000] BIOS-e820: [mem 0x00000000bfffd000-0x00000000bfffffff] reserved [ 0.000000] BIOS-e820: [mem 0x00000000fffbc000-0x00000000ffffffff] reserved [ 0.000000] BIOS-e820: [mem 0x0000000100000000-0x000000021fffffff] usable [ 0.000000] bootconsole [earlyser0] enabled [ 0.000000] NX (Execute Disable) protection: active [ 0.000000] SMBIOS 2.4 present. [ 0.000000] Hypervisor detected: KVM [ 0.000000] e820: last_pfn = 0x220000 max_arch_pfn = 0x400000000 [ 0.000000] x86/PAT: Configuration [0-7]: WB WC UC- UC WB WC UC- WT [ 0.000000] e820: last_pfn = 0xbfffd max_arch_pfn = 0x400000000 [ 0.000000] found SMP MP-table at [mem 0x000f32c0-0x000f32cf] mapped at [ffff8800000f32c0] [ 0.000000] Scanning 1 areas for low memory corruption [ 0.000000] Using GB pages for direct mapping [ 0.000000] ACPI: Early table checksum verification disabled [ 0.000000] ACPI: RSDP 0x00000000000F3090 000014 (v00 Google) [ 0.000000] ACPI: RSDT 0x00000000BFFFDC70 000034 (v01 Google GOOGRSDT 00000001 GOOG 00000001) [ 0.000000] ACPI: FACP 0x00000000BFFFFF00 0000F4 (v02 Google GOOGFACP 00000001 GOOG 00000001) [ 0.000000] ACPI: DSDT 0x00000000BFFFDCB0 0017B2 (v01 Google GOOGDSDT 00000001 GOOG 00000001) [ 0.000000] ACPI: FACS 0x00000000BFFFFEC0 000040 [ 0.000000] ACPI: FACS 0x00000000BFFFFEC0 000040 [ 0.000000] ACPI: SSDT 0x00000000BFFFF590 000930 (v01 Google GOOGSSDT 00000001 GOOG 00000001) [ 0.000000] ACPI: APIC 0x00000000BFFFF4A0 000076 (v01 Google GOOGAPIC 00000001 GOOG 00000001) [ 0.000000] ACPI: WAET 0x00000000BFFFF470 000028 (v01 Google GOOGWAET 00000001 GOOG 00000001) [ 0.000000] kvm-clock: Using msrs 4b564d01 and 4b564d00 [ 0.000000] kvm-clock: cpu 0, msr 2:1fffd001, primary cpu clock [ 0.000000] kvm-clock: using sched offset of 1193251437 cycles [ 0.000000] clocksource: kvm-clock: mask: 0xffffffffffffffff max_cycles: 0x1cd42e4dffb, max_idle_ns: 881590591483 ns [ 0.000000] Zone ranges: [ 0.000000] DMA [mem 0x0000000000001000-0x0000000000ffffff] [ 0.000000] DMA32 [mem 0x0000000001000000-0x00000000ffffffff] [ 0.000000] Normal [mem 0x0000000100000000-0x000000021fffffff] [ 0.000000] Movable zone start for each node [ 0.000000] Early memory node ranges [ 0.000000] node 0: [mem 0x0000000000001000-0x000000000009efff] [ 0.000000] node 0: [mem 0x0000000000100000-0x00000000bfffcfff] [ 0.000000] node 0: [mem 0x0000000100000000-0x000000021fffffff] [ 0.000000] Initmem setup node 0 [mem 0x0000000000001000-0x000000021fffffff] [ 0.000000] kasan: KernelAddressSanitizer initialized [ 0.000000] ACPI: PM-Timer IO Port: 0xb008 [ 0.000000] ACPI: LAPIC_NMI (acpi_id[0xff] dfl dfl lint[0x1]) [ 0.000000] IOAPIC[0]: apic_id 0, version 17, address 0xfec00000, GSI 0-23 [ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 5 global_irq 5 high level) [ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 9 global_irq 9 high level) [ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 10 global_irq 10 high level) [ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 11 global_irq 11 high level) [ 0.000000] Using ACPI (MADT) for SMP configuration information [ 0.000000] smpboot: Allowing 2 CPUs, 0 hotplug CPUs [ 0.000000] PM: Registered nosave memory: [mem 0x00000000-0x00000fff] [ 0.000000] PM: Registered nosave memory: [mem 0x0009f000-0x0009ffff] [ 0.000000] PM: Registered nosave memory: [mem 0x000a0000-0x000effff] [ 0.000000] PM: Registered nosave memory: [mem 0x000f0000-0x000fffff] [ 0.000000] PM: Registered nosave memory: [mem 0xbfffd000-0xbfffffff] [ 0.000000] PM: Registered nosave memory: [mem 0xc0000000-0xfffbbfff] [ 0.000000] PM: Registered nosave memory: [mem 0xfffbc000-0xffffffff] [ 0.000000] e820: [mem 0xc0000000-0xfffbbfff] available for PCI devices [ 0.000000] Booting paravirtualized kernel on KVM [ 0.000000] clocksource: refined-jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604462750000 ns [ 0.000000] setup_percpu: NR_CPUS:64 nr_cpumask_bits:64 nr_cpu_ids:2 nr_node_ids:1 [ 0.000000] PERCPU: Embedded 42 pages/cpu @ffff8801db200000 s132680 r8192 d31160 u1048576 [ 0.000000] Built 1 zonelists in Zone order, mobility grouping on. Total pages: 1935238 [ 0.000000] Kernel command line: BOOT_IMAGE=/vmlinuz root=/dev/sda1 console=ttyS0 earlyprintk=serial vsyscall=native rodata=n ftrace_dump_on_oops=orig_cpu oops=panic panic_on_warn=1 nmi_watchdog=panic panic=86400 workqueue.watchdog_thresh=120 [ 0.000000] PID hash table entries: 4096 (order: 3, 32768 bytes) [ 0.000000] Dentry cache hash table entries: 1048576 (order: 11, 8388608 bytes) [ 0.000000] Inode-cache hash table entries: 524288 (order: 10, 4194304 bytes) [ 0.000000] ================================================================== [ 0.000000] BUG: KASAN: stack-out-of-bounds in reserve_bootmem_region+0xdf/0x130 [ 0.000000] Write of size 8 at addr ffffea0000047ce0 by task swapper/0 [ 0.000000] [ 0.000000] CPU: 0 PID: 0 Comm: swapper Not tainted 4.4.108-g55b3b8c #7 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 67be979878c5e618 ffffffff84207ce8 ffffffff81d02e5d [ 0.000000] ffffea0000047ce0 ffffea0000047ce0 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d20 ffffffff814fb329 ffffea0000047ce0 [ 0.000000] Call Trace: [ 0.000000] [] dump_stack+0xc1/0x124 [ 0.000000] [] print_address_description+0x189/0x260 [ 0.000000] [] kasan_report+0x285/0x370 [ 0.000000] [] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] free_all_bootmem+0xf2/0x24d [ 0.000000] [] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [] ? dmar_table_detect+0x60/0x60 [ 0.000000] [] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [] mem_init+0x13/0x74 [ 0.000000] [] start_kernel+0x31d/0x6e9 [ 0.000000] [] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [] x86_64_start_kernel+0x140/0x163 [ 0.000000] [ 0.000000] [ 0.000000] Memory state around the buggy address: [ 0.000000] ffffea0000047b80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ffffea0000047c00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] >ffffea0000047c80: 00 00 00 00 00 00 f1 f1 f1 f1 00 00 f2 f2 00 00 [ 0.000000] ^ [ 0.000000] ffffea0000047d00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ffffea0000047d80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ================================================================== [ 0.000000] Disabling lock debugging due to kernel taint [ 0.000000] Kernel panic - not syncing: panic_on_warn set ... [ 0.000000] [ 0.000000] CPU: 0 PID: 0 Comm: swapper Tainted: G B 4.4.108-g55b3b8c #7 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 67be979878c5e618 ffffffff84207c40 ffffffff81d02e5d [ 0.000000] ffffffff83fb34b5 ffffffff84207d18 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d08 ffffffff81417caa 0000000041b58ab3 [ 0.000000] Call Trace: [ 0.000000] [] dump_stack+0xc1/0x124 [ 0.000000] [] panic+0x1aa/0x388 [ 0.000000] [] ? percpu_up_read.constprop.45+0xe1/0xe1 [ 0.000000] [] kasan_end_report+0x50/0x50 [ 0.000000] [] kasan_report+0x15c/0x370 [ 0.000000] [] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] free_all_bootmem+0xf2/0x24d [ 0.000000] [] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [] ? dmar_table_detect+0x60/0x60 [ 0.000000] [] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [] mem_init+0x13/0x74 [ 0.000000] [] start_kernel+0x31d/0x6e9 [ 0.000000] [] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [] x86_64_start_kernel+0x140/0x163 [ 0.000000] Rebooting in 86400 seconds.. [ 0.000000] ACPI MEMORY or I/O RESET_REG. SeaBIOS (version 1.8.2-20171012_061934-google) Total RAM Size = 0x00000001e0000000 = 7680 MiB CPUs found: 2 Max CPUs supported: 2 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 0x000f3050: PCHS=0/0/0 translation=lba LCHS=520/128/63 s=4194304 Booting from Hard Disk 0... early console in decompress_kernel input_data: 0x00000000039be26e input_len: 0x0000000001424e03 output: 0x0000000001000000 output_len: 0x0000000003dcea40 run_size: 0x0000000005504000 Decompressing Linux... Parsing ELF... done. Booting the kernel. [ 0.000000] Initializing cgroup subsys cpuset [ 0.000000] Initializing cgroup subsys cpu [ 0.000000] Initializing cgroup subsys cpuacct [ 0.000000] Initializing cgroup subsys schedtune [ 0.000000] Linux version 4.4.108-g55b3b8c (syzkaller@ci) (gcc version 7.1.1 20170620 (GCC) ) #7 SMP PREEMPT Fri Dec 29 21:50:38 UTC 2017 [ 0.000000] Command line: BOOT_IMAGE=/vmlinuz root=/dev/sda1 console=ttyS0 earlyprintk=serial vsyscall=native rodata=n ftrace_dump_on_oops=orig_cpu oops=panic panic_on_warn=1 nmi_watchdog=panic panic=86400 workqueue.watchdog_thresh=120 [ 0.000000] KERNEL supported cpus: [ 0.000000] Intel GenuineIntel [ 0.000000] AMD AuthenticAMD [ 0.000000] Centaur CentaurHauls [ 0.000000] x86/fpu: xstate_offset[2]: 576, xstate_sizes[2]: 256 [ 0.000000] x86/fpu: Supporting XSAVE feature 0x01: 'x87 floating point registers' [ 0.000000] x86/fpu: Supporting XSAVE feature 0x02: 'SSE registers' [ 0.000000] x86/fpu: Supporting XSAVE feature 0x04: 'AVX registers' [ 0.000000] x86/fpu: Enabled xstate features 0x7, context size is 832 bytes, using 'standard' format. [ 0.000000] x86/fpu: Using 'eager' FPU context switches. [ 0.000000] e820: BIOS-provided physical RAM map: [ 0.000000] BIOS-e820: [mem 0x0000000000000000-0x000000000009fbff] usable [ 0.000000] BIOS-e820: [mem 0x000000000009fc00-0x000000000009ffff] reserved [ 0.000000] BIOS-e820: [mem 0x00000000000f0000-0x00000000000fffff] reserved [ 0.000000] BIOS-e820: [mem 0x0000000000100000-0x00000000bfffcfff] usable [ 0.000000] BIOS-e820: [mem 0x00000000bfffd000-0x00000000bfffffff] reserved [ 0.000000] BIOS-e820: [mem 0x00000000fffbc000-0x00000000ffffffff] reserved [ 0.000000] BIOS-e820: [mem 0x0000000100000000-0x000000021fffffff] usable [ 0.000000] bootconsole [earlyser0] enabled [ 0.000000] NX (Execute Disable) protection: active [ 0.000000] SMBIOS 2.4 present. [ 0.000000] Hypervisor detected: KVM [ 0.000000] e820: last_pfn = 0x220000 max_arch_pfn = 0x400000000 [ 0.000000] x86/PAT: Configuration [0-7]: WB WC UC- UC WB WC UC- WT [ 0.000000] e820: last_pfn = 0xbfffd max_arch_pfn = 0x400000000 [ 0.000000] found SMP MP-table at [mem 0x000f32c0-0x000f32cf] mapped at [ffff8800000f32c0] [ 0.000000] Scanning 1 areas for low memory corruption [ 0.000000] Using GB pages for direct mapping [ 0.000000] ACPI: Early table checksum verification disabled [ 0.000000] ACPI: RSDP 0x00000000000F3090 000014 (v00 Google) [ 0.000000] ACPI: RSDT 0x00000000BFFFDC70 000034 (v01 Google GOOGRSDT 00000001 GOOG 00000001) [ 0.000000] ACPI: FACP 0x00000000BFFFFF00 0000F4 (v02 Google GOOGFACP 00000001 GOOG 00000001) [ 0.000000] ACPI: DSDT 0x00000000BFFFDCB0 0017B2 (v01 Google GOOGDSDT 00000001 GOOG 00000001) [ 0.000000] ACPI: FACS 0x00000000BFFFFEC0 000040 [ 0.000000] ACPI: FACS 0x00000000BFFFFEC0 000040 [ 0.000000] ACPI: SSDT 0x00000000BFFFF590 000930 (v01 Google GOOGSSDT 00000001 GOOG 00000001) [ 0.000000] ACPI: APIC 0x00000000BFFFF4A0 000076 (v01 Google GOOGAPIC 00000001 GOOG 00000001) [ 0.000000] ACPI: WAET 0x00000000BFFFF470 000028 (v01 Google GOOGWAET 00000001 GOOG 00000001) [ 0.000000] kvm-clock: Using msrs 4b564d01 and 4b564d00 [ 0.000000] kvm-clock: cpu 0, msr 2:1fffd001, primary cpu clock [ 0.000000] kvm-clock: using sched offset of 1166999542 cycles [ 0.000000] clocksource: kvm-clock: mask: 0xffffffffffffffff max_cycles: 0x1cd42e4dffb, max_idle_ns: 881590591483 ns [ 0.000000] Zone ranges: [ 0.000000] DMA [mem 0x0000000000001000-0x0000000000ffffff] [ 0.000000] DMA32 [mem 0x0000000001000000-0x00000000ffffffff] [ 0.000000] Normal [mem 0x0000000100000000-0x000000021fffffff] [ 0.000000] Movable zone start for each node [ 0.000000] Early memory node ranges [ 0.000000] node 0: [mem 0x0000000000001000-0x000000000009efff] [ 0.000000] node 0: [mem 0x0000000000100000-0x00000000bfffcfff] [ 0.000000] node 0: [mem 0x0000000100000000-0x000000021fffffff] [ 0.000000] Initmem setup node 0 [mem 0x0000000000001000-0x000000021fffffff] [ 0.000000] kasan: KernelAddressSanitizer initialized [ 0.000000] ACPI: PM-Timer IO Port: 0xb008 [ 0.000000] ACPI: LAPIC_NMI (acpi_id[0xff] dfl dfl lint[0x1]) [ 0.000000] IOAPIC[0]: apic_id 0, version 17, address 0xfec00000, GSI 0-23 [ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 5 global_irq 5 high level) [ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 9 global_irq 9 high level) [ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 10 global_irq 10 high level) [ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 11 global_irq 11 high level) [ 0.000000] Using ACPI (MADT) for SMP configuration information [ 0.000000] smpboot: Allowing 2 CPUs, 0 hotplug CPUs [ 0.000000] PM: Registered nosave memory: [mem 0x00000000-0x00000fff] [ 0.000000] PM: Registered nosave memory: [mem 0x0009f000-0x0009ffff] [ 0.000000] PM: Registered nosave memory: [mem 0x000a0000-0x000effff] [ 0.000000] PM: Registered nosave memory: [mem 0x000f0000-0x000fffff] [ 0.000000] PM: Registered nosave memory: [mem 0xbfffd000-0xbfffffff] [ 0.000000] PM: Registered nosave memory: [mem 0xc0000000-0xfffbbfff] [ 0.000000] PM: Registered nosave memory: [mem 0xfffbc000-0xffffffff] [ 0.000000] e820: [mem 0xc0000000-0xfffbbfff] available for PCI devices [ 0.000000] Booting paravirtualized kernel on KVM [ 0.000000] clocksource: refined-jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604462750000 ns [ 0.000000] setup_percpu: NR_CPUS:64 nr_cpumask_bits:64 nr_cpu_ids:2 nr_node_ids:1 [ 0.000000] PERCPU: Embedded 42 pages/cpu @ffff8801db200000 s132680 r8192 d31160 u1048576 [ 0.000000] Built 1 zonelists in Zone order, mobility grouping on. Total pages: 1935238 [ 0.000000] Kernel command line: BOOT_IMAGE=/vmlinuz root=/dev/sda1 console=ttyS0 earlyprintk=serial vsyscall=native rodata=n ftrace_dump_on_oops=orig_cpu oops=panic panic_on_warn=1 nmi_watchdog=panic panic=86400 workqueue.watchdog_thresh=120 [ 0.000000] PID hash table entries: 4096 (order: 3, 32768 bytes) [ 0.000000] Dentry cache hash table entries: 1048576 (order: 11, 8388608 bytes) [ 0.000000] Inode-cache hash table entries: 524288 (order: 10, 4194304 bytes) [ 0.000000] ================================================================== [ 0.000000] BUG: KASAN: stack-out-of-bounds in reserve_bootmem_region+0xdf/0x130 [ 0.000000] Write of size 8 at addr ffffea0000047ce0 by task swapper/0 [ 0.000000] [ 0.000000] CPU: 0 PID: 0 Comm: swapper Not tainted 4.4.108-g55b3b8c #7 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 643cc81275441692 ffffffff84207ce8 ffffffff81d02e5d [ 0.000000] ffffea0000047ce0 ffffea0000047ce0 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d20 ffffffff814fb329 ffffea0000047ce0 [ 0.000000] Call Trace: [ 0.000000] [] dump_stack+0xc1/0x124 [ 0.000000] [] print_address_description+0x189/0x260 [ 0.000000] [] kasan_report+0x285/0x370 [ 0.000000] [] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] free_all_bootmem+0xf2/0x24d [ 0.000000] [] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [] ? dmar_table_detect+0x60/0x60 [ 0.000000] [] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [] mem_init+0x13/0x74 [ 0.000000] [] start_kernel+0x31d/0x6e9 [ 0.000000] [] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [] x86_64_start_kernel+0x140/0x163 [ 0.000000] [ 0.000000] [ 0.000000] Memory state around the buggy address: [ 0.000000] ffffea0000047b80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ffffea0000047c00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] >ffffea0000047c80: 00 00 00 00 00 00 f1 f1 f1 f1 00 00 f2 f2 00 00 [ 0.000000] ^ [ 0.000000] ffffea0000047d00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ffffea0000047d80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ================================================================== [ 0.000000] Disabling lock debugging due to kernel taint [ 0.000000] Kernel panic - not syncing: panic_on_warn set ... [ 0.000000] [ 0.000000] CPU: 0 PID: 0 Comm: swapper Tainted: G B 4.4.108-g55b3b8c #7 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 643cc81275441692 ffffffff84207c40 ffffffff81d02e5d [ 0.000000] ffffffff83fb34b5 ffffffff84207d18 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d08 ffffffff81417caa 0000000041b58ab3 [ 0.000000] Call Trace: [ 0.000000] [] dump_stack+0xc1/0x124 [ 0.000000] [] panic+0x1aa/0x388 [ 0.000000] [] ? percpu_up_read.constprop.45+0xe1/0xe1 [ 0.000000] [] kasan_end_report+0x50/0x50 [ 0.000000] [] kasan_report+0x15c/0x370 [ 0.000000] [] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] free_all_bootmem+0xf2/0x24d [ 0.000000] [] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [] ? dmar_table_detect+0x60/0x60 [ 0.000000] [] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [] mem_init+0x13/0x74 [ 0.000000] [] start_kernel+0x31d/0x6e9 [ 0.000000] [] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [] x86_64_start_kernel+0x140/0x163 [ 0.000000] Rebooting in 86400 seconds.. [ 0.000000] ACPI MEMORY or I/O RESET_REG. SeaBIOS (version 1.8.2-20171012_061934-google) Total RAM Size = 0x00000001e0000000 = 7680 MiB CPUs found: 2 Max CPUs supported: 2 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 0x000f3050: PCHS=0/0/0 translation=lba LCHS=520/128/63 s=4194304 Booting from Hard Disk 0... early console in decompress_kernel input_data: 0x00000000039be26e input_len: 0x0000000001424e03 output: 0x0000000001000000 output_len: 0x0000000003dcea40 run_size: 0x0000000005504000 Decompressing Linux... Parsing ELF... done. Booting the kernel. [ 0.000000] Initializing cgroup subsys cpuset [ 0.000000] Initializing cgroup subsys cpu [ 0.000000] Initializing cgroup subsys cpuacct [ 0.000000] Initializing cgroup subsys schedtune [ 0.000000] Linux version 4.4.108-g55b3b8c (syzkaller@ci) (gcc version 7.1.1 20170620 (GCC) ) #7 SMP PREEMPT Fri Dec 29 21:50:38 UTC 2017 [ 0.000000] Command line: BOOT_IMAGE=/vmlinuz root=/dev/sda1 console=ttyS0 earlyprintk=serial vsyscall=native rodata=n ftrace_dump_on_oops=orig_cpu oops=panic panic_on_warn=1 nmi_watchdog=panic panic=86400 workqueue.watchdog_thresh=120 [ 0.000000] KERNEL supported cpus: [ 0.000000] Intel GenuineIntel [ 0.000000] AMD AuthenticAMD [ 0.000000] Centaur CentaurHauls [ 0.000000] x86/fpu: xstate_offset[2]: 576, xstate_sizes[2]: 256 [ 0.000000] x86/fpu: Supporting XSAVE feature 0x01: 'x87 floating point registers' [ 0.000000] x86/fpu: Supporting XSAVE feature 0x02: 'SSE registers' [ 0.000000] x86/fpu: Supporting XSAVE feature 0x04: 'AVX registers' [ 0.000000] x86/fpu: Enabled xstate features 0x7, context size is 832 bytes, using 'standard' format. [ 0.000000] x86/fpu: Using 'eager' FPU context switches. [ 0.000000] e820: BIOS-provided physical RAM map: [ 0.000000] BIOS-e820: [mem 0x0000000000000000-0x000000000009fbff] usable [ 0.000000] BIOS-e820: [mem 0x000000000009fc00-0x000000000009ffff] reserved [ 0.000000] BIOS-e820: [mem 0x00000000000f0000-0x00000000000fffff] reserved [ 0.000000] BIOS-e820: [mem 0x0000000000100000-0x00000000bfffcfff] usable [ 0.000000] BIOS-e820: [mem 0x00000000bfffd000-0x00000000bfffffff] reserved [ 0.000000] BIOS-e820: [mem 0x00000000fffbc000-0x00000000ffffffff] reserved [ 0.000000] BIOS-e820: [mem 0x0000000100000000-0x000000021fffffff] usable [ 0.000000] bootconsole [earlyser0] enabled [ 0.000000] NX (Execute Disable) protection: active [ 0.000000] SMBIOS 2.4 present. [ 0.000000] Hypervisor detected: KVM [ 0.000000] e820: last_pfn = 0x220000 max_arch_pfn = 0x400000000 [ 0.000000] x86/PAT: Configuration [0-7]: WB WC UC- UC WB WC UC- WT [ 0.000000] e820: last_pfn = 0xbfffd max_arch_pfn = 0x400000000 [ 0.000000] found SMP MP-table at [mem 0x000f32c0-0x000f32cf] mapped at [ffff8800000f32c0] [ 0.000000] Scanning 1 areas for low memory corruption [ 0.000000] Using GB pages for direct mapping [ 0.000000] ACPI: Early table checksum verification disabled [ 0.000000] ACPI: RSDP 0x00000000000F3090 000014 (v00 Google) [ 0.000000] ACPI: RSDT 0x00000000BFFFDC70 000034 (v01 Google GOOGRSDT 00000001 GOOG 00000001) [ 0.000000] ACPI: FACP 0x00000000BFFFFF00 0000F4 (v02 Google GOOGFACP 00000001 GOOG 00000001) [ 0.000000] ACPI: DSDT 0x00000000BFFFDCB0 0017B2 (v01 Google GOOGDSDT 00000001 GOOG 00000001) [ 0.000000] ACPI: FACS 0x00000000BFFFFEC0 000040 [ 0.000000] ACPI: FACS 0x00000000BFFFFEC0 000040 [ 0.000000] ACPI: SSDT 0x00000000BFFFF590 000930 (v01 Google GOOGSSDT 00000001 GOOG 00000001) [ 0.000000] ACPI: APIC 0x00000000BFFFF4A0 000076 (v01 Google GOOGAPIC 00000001 GOOG 00000001) [ 0.000000] ACPI: WAET 0x00000000BFFFF470 000028 (v01 Google GOOGWAET 00000001 GOOG 00000001) [ 0.000000] kvm-clock: Using msrs 4b564d01 and 4b564d00 [ 0.000000] kvm-clock: cpu 0, msr 2:1fffd001, primary cpu clock [ 0.000000] kvm-clock: using sched offset of 1189480764 cycles [ 0.000000] clocksource: kvm-clock: mask: 0xffffffffffffffff max_cycles: 0x1cd42e4dffb, max_idle_ns: 881590591483 ns [ 0.000000] Zone ranges: [ 0.000000] DMA [mem 0x0000000000001000-0x0000000000ffffff] [ 0.000000] DMA32 [mem 0x0000000001000000-0x00000000ffffffff] [ 0.000000] Normal [mem 0x0000000100000000-0x000000021fffffff] [ 0.000000] Movable zone start for each node [ 0.000000] Early memory node ranges [ 0.000000] node 0: [mem 0x0000000000001000-0x000000000009efff] [ 0.000000] node 0: [mem 0x0000000000100000-0x00000000bfffcfff] [ 0.000000] node 0: [mem 0x0000000100000000-0x000000021fffffff] [ 0.000000] Initmem setup node 0 [mem 0x0000000000001000-0x000000021fffffff] [ 0.000000] kasan: KernelAddressSanitizer initialized [ 0.000000] ACPI: PM-Timer IO Port: 0xb008 [ 0.000000] ACPI: LAPIC_NMI (acpi_id[0xff] dfl dfl lint[0x1]) [ 0.000000] IOAPIC[0]: apic_id 0, version 17, address 0xfec00000, GSI 0-23 [ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 5 global_irq 5 high level) [ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 9 global_irq 9 high level) [ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 10 global_irq 10 high level) [ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 11 global_irq 11 high level) [ 0.000000] Using ACPI (MADT) for SMP configuration information [ 0.000000] smpboot: Allowing 2 CPUs, 0 hotplug CPUs [ 0.000000] PM: Registered nosave memory: [mem 0x00000000-0x00000fff] [ 0.000000] PM: Registered nosave memory: [mem 0x0009f000-0x0009ffff] [ 0.000000] PM: Registered nosave memory: [mem 0x000a0000-0x000effff] [ 0.000000] PM: Registered nosave memory: [mem 0x000f0000-0x000fffff] [ 0.000000] PM: Registered nosave memory: [mem 0xbfffd000-0xbfffffff] [ 0.000000] PM: Registered nosave memory: [mem 0xc0000000-0xfffbbfff] [ 0.000000] PM: Registered nosave memory: [mem 0xfffbc000-0xffffffff] [ 0.000000] e820: [mem 0xc0000000-0xfffbbfff] available for PCI devices [ 0.000000] Booting paravirtualized kernel on KVM [ 0.000000] clocksource: refined-jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604462750000 ns [ 0.000000] setup_percpu: NR_CPUS:64 nr_cpumask_bits:64 nr_cpu_ids:2 nr_node_ids:1 [ 0.000000] PERCPU: Embedded 42 pages/cpu @ffff8801db200000 s132680 r8192 d31160 u1048576 [ 0.000000] Built 1 zonelists in Zone order, mobility grouping on. Total pages: 1935238 [ 0.000000] Kernel command line: BOOT_IMAGE=/vmlinuz root=/dev/sda1 console=ttyS0 earlyprintk=serial vsyscall=native rodata=n ftrace_dump_on_oops=orig_cpu oops=panic panic_on_warn=1 nmi_watchdog=panic panic=86400 workqueue.watchdog_thresh=120 [ 0.000000] PID hash table entries: 4096 (order: 3, 32768 bytes) [ 0.000000] Dentry cache hash table entries: 1048576 (order: 11, 8388608 bytes) [ 0.000000] Inode-cache hash table entries: 524288 (order: 10, 4194304 bytes) [ 0.000000] ================================================================== [ 0.000000] BUG: KASAN: stack-out-of-bounds in reserve_bootmem_region+0xdf/0x130 [ 0.000000] Write of size 8 at addr ffffea0000047ce0 by task swapper/0 [ 0.000000] [ 0.000000] CPU: 0 PID: 0 Comm: swapper Not tainted 4.4.108-g55b3b8c #7 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 6723ce8f782b1d0f ffffffff84207ce8 ffffffff81d02e5d [ 0.000000] ffffea0000047ce0 ffffea0000047ce0 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d20 ffffffff814fb329 ffffea0000047ce0 [ 0.000000] Call Trace: [ 0.000000] [] dump_stack+0xc1/0x124 [ 0.000000] [] print_address_description+0x189/0x260 [ 0.000000] [] kasan_report+0x285/0x370 [ 0.000000] [] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] free_all_bootmem+0xf2/0x24d [ 0.000000] [] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [] ? dmar_table_detect+0x60/0x60 [ 0.000000] [] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [] mem_init+0x13/0x74 [ 0.000000] [] start_kernel+0x31d/0x6e9 [ 0.000000] [] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [] x86_64_start_kernel+0x140/0x163 [ 0.000000] [ 0.000000] [ 0.000000] Memory state around the buggy address: [ 0.000000] ffffea0000047b80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ffffea0000047c00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] >ffffea0000047c80: 00 00 00 00 00 00 f1 f1 f1 f1 00 00 f2 f2 00 00 [ 0.000000] ^ [ 0.000000] ffffea0000047d00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ffffea0000047d80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ================================================================== [ 0.000000] Disabling lock debugging due to kernel taint [ 0.000000] Kernel panic - not syncing: panic_on_warn set ... [ 0.000000] [ 0.000000] CPU: 0 PID: 0 Comm: swapper Tainted: G B 4.4.108-g55b3b8c #7 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 6723ce8f782b1d0f ffffffff84207c40 ffffffff81d02e5d [ 0.000000] ffffffff83fb34b5 ffffffff84207d18 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d08 ffffffff81417caa 0000000041b58ab3 [ 0.000000] Call Trace: [ 0.000000] [] dump_stack+0xc1/0x124 [ 0.000000] [] panic+0x1aa/0x388 [ 0.000000] [] ? percpu_up_read.constprop.45+0xe1/0xe1 [ 0.000000] [] kasan_end_report+0x50/0x50 [ 0.000000] [] kasan_report+0x15c/0x370 [ 0.000000] [] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] free_all_bootmem+0xf2/0x24d [ 0.000000] [] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [] ? dmar_table_detect+0x60/0x60 [ 0.000000] [] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [] mem_init+0x13/0x74 [ 0.000000] [] start_kernel+0x31d/0x6e9 [ 0.000000] [] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [] x86_64_start_kernel+0x140/0x163 [ 0.000000] Rebooting in 86400 seconds.. [ 0.000000] ACPI MEMORY or I/O RESET_REG. SeaBIOS (version 1.8.2-20171012_061934-google) Total RAM Size = 0x00000001e0000000 = 7680 MiB CPUs found: 2 Max CPUs supported: 2 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 0x000f3050: PCHS=0/0/0 translation=lba LCHS=520/128/63 s=4194304 Booting from Hard Disk 0... early console in decompress_kernel input_data: 0x00000000039be26e input_len: 0x0000000001424e03 output: 0x0000000001000000 output_len: 0x0000000003dcea40 run_size: 0x0000000005504000 Decompressing Linux... Parsing ELF... done. Booting the kernel. [ 0.000000] Initializing cgroup subsys cpuset [ 0.000000] Initializing cgroup subsys cpu [ 0.000000] Initializing cgroup subsys cpuacct [ 0.000000] Initializing cgroup subsys schedtune [ 0.000000] Linux version 4.4.108-g55b3b8c (syzkaller@ci) (gcc version 7.1.1 20170620 (GCC) ) #7 SMP PREEMPT Fri Dec 29 21:50:38 UTC 2017 [ 0.000000] Command line: BOOT_IMAGE=/vmlinuz root=/dev/sda1 console=ttyS0 earlyprintk=serial vsyscall=native rodata=n ftrace_dump_on_oops=orig_cpu oops=panic panic_on_warn=1 nmi_watchdog=panic panic=86400 workqueue.watchdog_thresh=120 [ 0.000000] KERNEL supported cpus: [ 0.000000] Intel GenuineIntel [ 0.000000] AMD AuthenticAMD [ 0.000000] Centaur CentaurHauls [ 0.000000] x86/fpu: xstate_offset[2]: 576, xstate_sizes[2]: 256 [ 0.000000] x86/fpu: Supporting XSAVE feature 0x01: 'x87 floating point registers' [ 0.000000] x86/fpu: Supporting XSAVE feature 0x02: 'SSE registers' [ 0.000000] x86/fpu: Supporting XSAVE feature 0x04: 'AVX registers' [ 0.000000] x86/fpu: Enabled xstate features 0x7, context size is 832 bytes, using 'standard' format. [ 0.000000] x86/fpu: Using 'eager' FPU context switches. [ 0.000000] e820: BIOS-provided physical RAM map: [ 0.000000] BIOS-e820: [mem 0x0000000000000000-0x000000000009fbff] usable [ 0.000000] BIOS-e820: [mem 0x000000000009fc00-0x000000000009ffff] reserved [ 0.000000] BIOS-e820: [mem 0x00000000000f0000-0x00000000000fffff] reserved [ 0.000000] BIOS-e820: [mem 0x0000000000100000-0x00000000bfffcfff] usable [ 0.000000] BIOS-e820: [mem 0x00000000bfffd000-0x00000000bfffffff] reserved [ 0.000000] BIOS-e820: [mem 0x00000000fffbc000-0x00000000ffffffff] reserved [ 0.000000] BIOS-e820: [mem 0x0000000100000000-0x000000021fffffff] usable [ 0.000000] bootconsole [earlyser0] enabled [ 0.000000] NX (Execute Disable) protection: active [ 0.000000] SMBIOS 2.4 present. [ 0.000000] Hypervisor detected: KVM [ 0.000000] e820: last_pfn = 0x220000 max_arch_pfn = 0x400000000 [ 0.000000] x86/PAT: Configuration [0-7]: WB WC UC- UC WB WC UC- WT [ 0.000000] e820: last_pfn = 0xbfffd max_arch_pfn = 0x400000000 [ 0.000000] found SMP MP-table at [mem 0x000f32c0-0x000f32cf] mapped at [ffff8800000f32c0] [ 0.000000] Scanning 1 areas for low memory corruption [ 0.000000] Using GB pages for direct mapping [ 0.000000] ACPI: Early table checksum verification disabled [ 0.000000] ACPI: RSDP 0x00000000000F3090 000014 (v00 Google) [ 0.000000] ACPI: RSDT 0x00000000BFFFDC70 000034 (v01 Google GOOGRSDT 00000001 GOOG 00000001) [ 0.000000] ACPI: FACP 0x00000000BFFFFF00 0000F4 (v02 Google GOOGFACP 00000001 GOOG 00000001) [ 0.000000] ACPI: DSDT 0x00000000BFFFDCB0 0017B2 (v01 Google GOOGDSDT 00000001 GOOG 00000001) [ 0.000000] ACPI: FACS 0x00000000BFFFFEC0 000040 [ 0.000000] ACPI: FACS 0x00000000BFFFFEC0 000040 [ 0.000000] ACPI: SSDT 0x00000000BFFFF590 000930 (v01 Google GOOGSSDT 00000001 GOOG 00000001) [ 0.000000] ACPI: APIC 0x00000000BFFFF4A0 000076 (v01 Google GOOGAPIC 00000001 GOOG 00000001) [ 0.000000] ACPI: WAET 0x00000000BFFFF470 000028 (v01 Google GOOGWAET 00000001 GOOG 00000001) [ 0.000000] kvm-clock: Using msrs 4b564d01 and 4b564d00 [ 0.000000] kvm-clock: cpu 0, msr 2:1fffd001, primary cpu clock [ 0.000000] kvm-clock: using sched offset of 1484461303 cycles [ 0.000000] clocksource: kvm-clock: mask: 0xffffffffffffffff max_cycles: 0x1cd42e4dffb, max_idle_ns: 881590591483 ns [ 0.000000] Zone ranges: [ 0.000000] DMA [mem 0x0000000000001000-0x0000000000ffffff] [ 0.000000] DMA32 [mem 0x0000000001000000-0x00000000ffffffff] [ 0.000000] Normal [mem 0x0000000100000000-0x000000021fffffff] [ 0.000000] Movable zone start for each node [ 0.000000] Early memory node ranges [ 0.000000] node 0: [mem 0x0000000000001000-0x000000000009efff] [ 0.000000] node 0: [mem 0x0000000000100000-0x00000000bfffcfff] [ 0.000000] node 0: [mem 0x0000000100000000-0x000000021fffffff] [ 0.000000] Initmem setup node 0 [mem 0x0000000000001000-0x000000021fffffff] [ 0.000000] kasan: KernelAddressSanitizer initialized [ 0.000000] ACPI: PM-Timer IO Port: 0xb008 [ 0.000000] ACPI: LAPIC_NMI (acpi_id[0xff] dfl dfl lint[0x1]) [ 0.000000] IOAPIC[0]: apic_id 0, version 17, address 0xfec00000, GSI 0-23 [ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 5 global_irq 5 high level) [ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 9 global_irq 9 high level) [ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 10 global_irq 10 high level) [ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 11 global_irq 11 high level) [ 0.000000] Using ACPI (MADT) for SMP configuration information [ 0.000000] smpboot: Allowing 2 CPUs, 0 hotplug CPUs [ 0.000000] PM: Registered nosave memory: [mem 0x00000000-0x00000fff] [ 0.000000] PM: Registered nosave memory: [mem 0x0009f000-0x0009ffff] [ 0.000000] PM: Registered nosave memory: [mem 0x000a0000-0x000effff] [ 0.000000] PM: Registered nosave memory: [mem 0x000f0000-0x000fffff] [ 0.000000] PM: Registered nosave memory: [mem 0xbfffd000-0xbfffffff] [ 0.000000] PM: Registered nosave memory: [mem 0xc0000000-0xfffbbfff] [ 0.000000] PM: Registered nosave memory: [mem 0xfffbc000-0xffffffff] [ 0.000000] e820: [mem 0xc0000000-0xfffbbfff] available for PCI devices [ 0.000000] Booting paravirtualized kernel on KVM [ 0.000000] clocksource: refined-jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604462750000 ns [ 0.000000] setup_percpu: NR_CPUS:64 nr_cpumask_bits:64 nr_cpu_ids:2 nr_node_ids:1 [ 0.000000] PERCPU: Embedded 42 pages/cpu @ffff8801db200000 s132680 r8192 d31160 u1048576 [ 0.000000] Built 1 zonelists in Zone order, mobility grouping on. Total pages: 1935238 [ 0.000000] Kernel command line: BOOT_IMAGE=/vmlinuz root=/dev/sda1 console=ttyS0 earlyprintk=serial vsyscall=native rodata=n ftrace_dump_on_oops=orig_cpu oops=panic panic_on_warn=1 nmi_watchdog=panic panic=86400 workqueue.watchdog_thresh=120 [ 0.000000] PID hash table entries: 4096 (order: 3, 32768 bytes) [ 0.000000] Dentry cache hash table entries: 1048576 (order: 11, 8388608 bytes) [ 0.000000] Inode-cache hash table entries: 524288 (order: 10, 4194304 bytes) [ 0.000000] ================================================================== [ 0.000000] BUG: KASAN: stack-out-of-bounds in reserve_bootmem_region+0xdf/0x130 [ 0.000000] Write of size 8 at addr ffffea0000047ce0 by task swapper/0 [ 0.000000] [ 0.000000] CPU: 0 PID: 0 Comm: swapper Not tainted 4.4.108-g55b3b8c #7 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 8f8ef4dfa096435f ffffffff84207ce8 ffffffff81d02e5d [ 0.000000] ffffea0000047ce0 ffffea0000047ce0 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d20 ffffffff814fb329 ffffea0000047ce0 [ 0.000000] Call Trace: [ 0.000000] [] dump_stack+0xc1/0x124 [ 0.000000] [] print_address_description+0x189/0x260 [ 0.000000] [] kasan_report+0x285/0x370 [ 0.000000] [] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] free_all_bootmem+0xf2/0x24d [ 0.000000] [] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [] ? dmar_table_detect+0x60/0x60 [ 0.000000] [] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [] mem_init+0x13/0x74 [ 0.000000] [] start_kernel+0x31d/0x6e9 [ 0.000000] [] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [] x86_64_start_kernel+0x140/0x163 [ 0.000000] [ 0.000000] [ 0.000000] Memory state around the buggy address: [ 0.000000] ffffea0000047b80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ffffea0000047c00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] >ffffea0000047c80: 00 00 00 00 00 00 f1 f1 f1 f1 00 00 f2 f2 00 00 [ 0.000000] ^ [ 0.000000] ffffea0000047d00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ffffea0000047d80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ================================================================== [ 0.000000] Disabling lock debugging due to kernel taint [ 0.000000] Kernel panic - not syncing: panic_on_warn set ... [ 0.000000] [ 0.000000] CPU: 0 PID: 0 Comm: swapper Tainted: G B 4.4.108-g55b3b8c #7 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 8f8ef4dfa096435f ffffffff84207c40 ffffffff81d02e5d [ 0.000000] ffffffff83fb34b5 ffffffff84207d18 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d08 ffffffff81417caa 0000000041b58ab3 [ 0.000000] Call Trace: [ 0.000000] [] dump_stack+0xc1/0x124 [ 0.000000] [] panic+0x1aa/0x388 [ 0.000000] [] ? percpu_up_read.constprop.45+0xe1/0xe1 [ 0.000000] [] kasan_end_report+0x50/0x50 [ 0.000000] [] kasan_report+0x15c/0x370 [ 0.000000] [] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] free_all_bootmem+0xf2/0x24d [ 0.000000] [] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [] ? dmar_table_detect+0x60/0x60 [ 0.000000] [] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [] mem_init+0x13/0x74 [ 0.000000] [] start_kernel+0x31d/0x6e9 [ 0.000000] [] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [] x86_64_start_kernel+0x140/0x163 [ 0.000000] Rebooting in 86400 seconds.. [ 0.000000] ACPI MEMORY or I/O RESET_REG. SeaBIOS (version 1.8.2-20171012_061934-google) Total RAM Size = 0x00000001e0000000 = 7680 MiB CPUs found: 2 Max CPUs supported: 2 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 0x000f3050: PCHS=0/0/0 translation=lba LCHS=520/128/63 s=4194304 Booting from Hard Disk 0... early console in decompress_kernel input_data: 0x00000000039be26e input_len: 0x0000000001424e03 output: 0x0000000001000000 output_len: 0x0000000003dcea40 run_size: 0x0000000005504000 Decompressing Linux... Parsing ELF... done. Booting the kernel. [ 0.000000] Initializing cgroup subsys cpuset [ 0.000000] Initializing cgroup subsys cpu [ 0.000000] Initializing cgroup subsys cpuacct [ 0.000000] Initializing cgroup subsys schedtune [ 0.000000] Linux version 4.4.108-g55b3b8c (syzkaller@ci) (gcc version 7.1.1 20170620 (GCC) ) #7 SMP PREEMPT Fri Dec 29 21:50:38 UTC 2017 [ 0.000000] Command line: BOOT_IMAGE=/vmlinuz root=/dev/sda1 console=ttyS0 earlyprintk=serial vsyscall=native rodata=n ftrace_dump_on_oops=orig_cpu oops=panic panic_on_warn=1 nmi_watchdog=panic panic=86400 workqueue.watchdog_thresh=120 [ 0.000000] KERNEL supported cpus: [ 0.000000] Intel GenuineIntel [ 0.000000] AMD AuthenticAMD [ 0.000000] Centaur CentaurHauls [ 0.000000] x86/fpu: xstate_offset[2]: 576, xstate_sizes[2]: 256 [ 0.000000] x86/fpu: Supporting XSAVE feature 0x01: 'x87 floating point registers' [ 0.000000] x86/fpu: Supporting XSAVE feature 0x02: 'SSE registers' [ 0.000000] x86/fpu: Supporting XSAVE feature 0x04: 'AVX registers' [ 0.000000] x86/fpu: Enabled xstate features 0x7, context size is 832 bytes, using 'standard' format. [ 0.000000] x86/fpu: Using 'eager' FPU context switches. [ 0.000000] e820: BIOS-provided physical RAM map: [ 0.000000] BIOS-e820: [mem 0x0000000000000000-0x000000000009fbff] usable [ 0.000000] BIOS-e820: [mem 0x000000000009fc00-0x000000000009ffff] reserved [ 0.000000] BIOS-e820: [mem 0x00000000000f0000-0x00000000000fffff] reserved [ 0.000000] BIOS-e820: [mem 0x0000000000100000-0x00000000bfffcfff] usable [ 0.000000] BIOS-e820: [mem 0x00000000bfffd000-0x00000000bfffffff] reserved [ 0.000000] BIOS-e820: [mem 0x00000000fffbc000-0x00000000ffffffff] reserved [ 0.000000] BIOS-e820: [mem 0x0000000100000000-0x000000021fffffff] usable [ 0.000000] bootconsole [earlyser0] enabled [ 0.000000] NX (Execute Disable) protection: active [ 0.000000] SMBIOS 2.4 present. [ 0.000000] Hypervisor detected: KVM [ 0.000000] e820: last_pfn = 0x220000 max_arch_pfn = 0x400000000 [ 0.000000] x86/PAT: Configuration [0-7]: WB WC UC- UC WB WC UC- WT [ 0.000000] e820: last_pfn = 0xbfffd max_arch_pfn = 0x400000000 [ 0.000000] found SMP MP-table at [mem 0x000f32c0-0x000f32cf] mapped at [ffff8800000f32c0] [ 0.000000] Scanning 1 areas for low memory corruption [ 0.000000] Using GB pages for direct mapping [ 0.000000] ACPI: Early table checksum verification disabled [ 0.000000] ACPI: RSDP 0x00000000000F3090 000014 (v00 Google) [ 0.000000] ACPI: RSDT 0x00000000BFFFDC70 000034 (v01 Google GOOGRSDT 00000001 GOOG 00000001) [ 0.000000] ACPI: FACP 0x00000000BFFFFF00 0000F4 (v02 Google GOOGFACP 00000001 GOOG 00000001) [ 0.000000] ACPI: DSDT 0x00000000BFFFDCB0 0017B2 (v01 Google GOOGDSDT 00000001 GOOG 00000001) [ 0.000000] ACPI: FACS 0x00000000BFFFFEC0 000040 [ 0.000000] ACPI: FACS 0x00000000BFFFFEC0 000040 [ 0.000000] ACPI: SSDT 0x00000000BFFFF590 000930 (v01 Google GOOGSSDT 00000001 GOOG 00000001) [ 0.000000] ACPI: APIC 0x00000000BFFFF4A0 000076 (v01 Google GOOGAPIC 00000001 GOOG 00000001) [ 0.000000] ACPI: WAET 0x00000000BFFFF470 000028 (v01 Google GOOGWAET 00000001 GOOG 00000001) [ 0.000000] kvm-clock: Using msrs 4b564d01 and 4b564d00 [ 0.000000] kvm-clock: cpu 0, msr 2:1fffd001, primary cpu clock [ 0.000000] kvm-clock: using sched offset of 1254482182 cycles [ 0.000000] clocksource: kvm-clock: mask: 0xffffffffffffffff max_cycles: 0x1cd42e4dffb, max_idle_ns: 881590591483 ns [ 0.000000] Zone ranges: [ 0.000000] DMA [mem 0x0000000000001000-0x0000000000ffffff] [ 0.000000] DMA32 [mem 0x0000000001000000-0x00000000ffffffff] [ 0.000000] Normal [mem 0x0000000100000000-0x000000021fffffff] [ 0.000000] Movable zone start for each node [ 0.000000] Early memory node ranges [ 0.000000] node 0: [mem 0x0000000000001000-0x000000000009efff] [ 0.000000] node 0: [mem 0x0000000000100000-0x00000000bfffcfff] [ 0.000000] node 0: [mem 0x0000000100000000-0x000000021fffffff] [ 0.000000] Initmem setup node 0 [mem 0x0000000000001000-0x000000021fffffff] [ 0.000000] kasan: KernelAddressSanitizer initialized [ 0.000000] ACPI: PM-Timer IO Port: 0xb008 [ 0.000000] ACPI: LAPIC_NMI (acpi_id[0xff] dfl dfl lint[0x1]) [ 0.000000] IOAPIC[0]: apic_id 0, version 17, address 0xfec00000, GSI 0-23 [ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 5 global_irq 5 high level) [ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 9 global_irq 9 high level) [ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 10 global_irq 10 high level) [ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 11 global_irq 11 high level) [ 0.000000] Using ACPI (MADT) for SMP configuration information [ 0.000000] smpboot: Allowing 2 CPUs, 0 hotplug CPUs [ 0.000000] PM: Registered nosave memory: [mem 0x00000000-0x00000fff] [ 0.000000] PM: Registered nosave memory: [mem 0x0009f000-0x0009ffff] [ 0.000000] PM: Registered nosave memory: [mem 0x000a0000-0x000effff] [ 0.000000] PM: Registered nosave memory: [mem 0x000f0000-0x000fffff] [ 0.000000] PM: Registered nosave memory: [mem 0xbfffd000-0xbfffffff] [ 0.000000] PM: Registered nosave memory: [mem 0xc0000000-0xfffbbfff] [ 0.000000] PM: Registered nosave memory: [mem 0xfffbc000-0xffffffff] [ 0.000000] e820: [mem 0xc0000000-0xfffbbfff] available for PCI devices [ 0.000000] Booting paravirtualized kernel on KVM [ 0.000000] clocksource: refined-jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604462750000 ns [ 0.000000] setup_percpu: NR_CPUS:64 nr_cpumask_bits:64 nr_cpu_ids:2 nr_node_ids:1 [ 0.000000] PERCPU: Embedded 42 pages/cpu @ffff8801db200000 s132680 r8192 d31160 u1048576 [ 0.000000] Built 1 zonelists in Zone order, mobility grouping on. Total pages: 1935238 [ 0.000000] Kernel command line: BOOT_IMAGE=/vmlinuz root=/dev/sda1 console=ttyS0 earlyprintk=serial vsyscall=native rodata=n ftrace_dump_on_oops=orig_cpu oops=panic panic_on_warn=1 nmi_watchdog=panic panic=86400 workqueue.watchdog_thresh=120 [ 0.000000] PID hash table entries: 4096 (order: 3, 32768 bytes) [ 0.000000] Dentry cache hash table entries: 1048576 (order: 11, 8388608 bytes) [ 0.000000] Inode-cache hash table entries: 524288 (order: 10, 4194304 bytes) [ 0.000000] ================================================================== [ 0.000000] BUG: KASAN: stack-out-of-bounds in reserve_bootmem_region+0xdf/0x130 [ 0.000000] Write of size 8 at addr ffffea0000047ce0 by task swapper/0 [ 0.000000] [ 0.000000] CPU: 0 PID: 0 Comm: swapper Not tainted 4.4.108-g55b3b8c #7 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 702914a481306324 ffffffff84207ce8 ffffffff81d02e5d [ 0.000000] ffffea0000047ce0 ffffea0000047ce0 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d20 ffffffff814fb329 ffffea0000047ce0 [ 0.000000] Call Trace: [ 0.000000] [] dump_stack+0xc1/0x124 [ 0.000000] [] print_address_description+0x189/0x260 [ 0.000000] [] kasan_report+0x285/0x370 [ 0.000000] [] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] free_all_bootmem+0xf2/0x24d [ 0.000000] [] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [] ? dmar_table_detect+0x60/0x60 [ 0.000000] [] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [] mem_init+0x13/0x74 [ 0.000000] [] start_kernel+0x31d/0x6e9 [ 0.000000] [] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [] x86_64_start_kernel+0x140/0x163 [ 0.000000] [ 0.000000] [ 0.000000] Memory state around the buggy address: [ 0.000000] ffffea0000047b80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ffffea0000047c00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] >ffffea0000047c80: 00 00 00 00 00 00 f1 f1 f1 f1 00 00 f2 f2 00 00 [ 0.000000] ^ [ 0.000000] ffffea0000047d00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ffffea0000047d80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ================================================================== [ 0.000000] Disabling lock debugging due to kernel taint [ 0.000000] Kernel panic - not syncing: panic_on_warn set ... [ 0.000000] [ 0.000000] CPU: 0 PID: 0 Comm: swapper Tainted: G B 4.4.108-g55b3b8c #7 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 702914a481306324 ffffffff84207c40 ffffffff81d02e5d [ 0.000000] ffffffff83fb34b5 ffffffff84207d18 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d08 ffffffff81417caa 0000000041b58ab3 [ 0.000000] Call Trace: [ 0.000000] [] dump_stack+0xc1/0x124 [ 0.000000] [] panic+0x1aa/0x388 [ 0.000000] [] ? percpu_up_read.constprop.45+0xe1/0xe1 [ 0.000000] [] kasan_end_report+0x50/0x50 [ 0.000000] [] kasan_report+0x15c/0x370 [ 0.000000] [] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] free_all_bootmem+0xf2/0x24d [ 0.000000] [] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [] ? dmar_table_detect+0x60/0x60 [ 0.000000] [] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [] mem_init+0x13/0x74 [ 0.000000] [] start_kernel+0x31d/0x6e9 [ 0.000000] [] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [] x86_64_start_kernel+0x140/0x163 [ 0.000000] Rebooting in 86400 seconds.. [ 0.000000] ACPI MEMORY or I/O RESET_REG. SeaBIOS (version 1.8.2-20171012_061934-google) Total RAM Size = 0x00000001e0000000 = 7680 MiB CPUs found: 2 Max CPUs supported: 2 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 0x000f3050: PCHS=0/0/0 translation=lba LCHS=520/128/63 s=4194304 Booting from Hard Disk 0... early console in decompress_kernel input_data: 0x00000000039be26e input_len: 0x0000000001424e03 output: 0x0000000001000000 output_len: 0x0000000003dcea40 run_size: 0x0000000005504000 Decompressing Linux... Parsing ELF... done. Booting the kernel. [ 0.000000] Initializing cgroup subsys cpuset [ 0.000000] Initializing cgroup subsys cpu [ 0.000000] Initializing cgroup subsys cpuacct [ 0.000000] Initializing cgroup subsys schedtune [ 0.000000] Linux version 4.4.108-g55b3b8c (syzkaller@ci) (gcc version 7.1.1 20170620 (GCC) ) #7 SMP PREEMPT Fri Dec 29 21:50:38 UTC 2017 [ 0.000000] Command line: BOOT_IMAGE=/vmlinuz root=/dev/sda1 console=ttyS0 earlyprintk=serial vsyscall=native rodata=n ftrace_dump_on_oops=orig_cpu oops=panic panic_on_warn=1 nmi_watchdog=panic panic=86400 workqueue.watchdog_thresh=120 [ 0.000000] KERNEL supported cpus: [ 0.000000] Intel GenuineIntel [ 0.000000] AMD AuthenticAMD [ 0.000000] Centaur CentaurHauls [ 0.000000] x86/fpu: xstate_offset[2]: 576, xstate_sizes[2]: 256 [ 0.000000] x86/fpu: Supporting XSAVE feature 0x01: 'x87 floating point registers' [ 0.000000] x86/fpu: Supporting XSAVE feature 0x02: 'SSE registers' [ 0.000000] x86/fpu: Supporting XSAVE feature 0x04: 'AVX registers' [ 0.000000] x86/fpu: Enabled xstate features 0x7, context size is 832 bytes, using 'standard' format. [ 0.000000] x86/fpu: Using 'eager' FPU context switches. [ 0.000000] e820: BIOS-provided physical RAM map: [ 0.000000] BIOS-e820: [mem 0x0000000000000000-0x000000000009fbff] usable [ 0.000000] BIOS-e820: [mem 0x000000000009fc00-0x000000000009ffff] reserved [ 0.000000] BIOS-e820: [mem 0x00000000000f0000-0x00000000000fffff] reserved [ 0.000000] BIOS-e820: [mem 0x0000000000100000-0x00000000bfffcfff] usable [ 0.000000] BIOS-e820: [mem 0x00000000bfffd000-0x00000000bfffffff] reserved [ 0.000000] BIOS-e820: [mem 0x00000000fffbc000-0x00000000ffffffff] reserved [ 0.000000] BIOS-e820: [mem 0x0000000100000000-0x000000021fffffff] usable [ 0.000000] bootconsole [earlyser0] enabled [ 0.000000] NX (Execute Disable) protection: active [ 0.000000] SMBIOS 2.4 present. [ 0.000000] Hypervisor detected: KVM [ 0.000000] e820: last_pfn = 0x220000 max_arch_pfn = 0x400000000 [ 0.000000] x86/PAT: Configuration [0-7]: WB WC UC- UC WB WC UC- WT [ 0.000000] e820: last_pfn = 0xbfffd max_arch_pfn = 0x400000000 [ 0.000000] found SMP MP-table at [mem 0x000f32c0-0x000f32cf] mapped at [ffff8800000f32c0] [ 0.000000] Scanning 1 areas for low memory corruption [ 0.000000] Using GB pages for direct mapping [ 0.000000] ACPI: Early table checksum verification disabled [ 0.000000] ACPI: RSDP 0x00000000000F3090 000014 (v00 Google) [ 0.000000] ACPI: RSDT 0x00000000BFFFDC70 000034 (v01 Google GOOGRSDT 00000001 GOOG 00000001) [ 0.000000] ACPI: FACP 0x00000000BFFFFF00 0000F4 (v02 Google GOOGFACP 00000001 GOOG 00000001) [ 0.000000] ACPI: DSDT 0x00000000BFFFDCB0 0017B2 (v01 Google GOOGDSDT 00000001 GOOG 00000001) [ 0.000000] ACPI: FACS 0x00000000BFFFFEC0 000040 [ 0.000000] ACPI: FACS 0x00000000BFFFFEC0 000040 [ 0.000000] ACPI: SSDT 0x00000000BFFFF590 000930 (v01 Google GOOGSSDT 00000001 GOOG 00000001) [ 0.000000] ACPI: APIC 0x00000000BFFFF4A0 000076 (v01 Google GOOGAPIC 00000001 GOOG 00000001) [ 0.000000] ACPI: WAET 0x00000000BFFFF470 000028 (v01 Google GOOGWAET 00000001 GOOG 00000001) [ 0.000000] kvm-clock: Using msrs 4b564d01 and 4b564d00 [ 0.000000] kvm-clock: cpu 0, msr 2:1fffd001, primary cpu clock [ 0.000000] kvm-clock: using sched offset of 1194866209 cycles [ 0.000000] clocksource: kvm-clock: mask: 0xffffffffffffffff max_cycles: 0x1cd42e4dffb, max_idle_ns: 881590591483 ns [ 0.000000] Zone ranges: [ 0.000000] DMA [mem 0x0000000000001000-0x0000000000ffffff] [ 0.000000] DMA32 [mem 0x0000000001000000-0x00000000ffffffff] [ 0.000000] Normal [mem 0x0000000100000000-0x000000021fffffff] [ 0.000000] Movable zone start for each node [ 0.000000] Early memory node ranges [ 0.000000] node 0: [mem 0x0000000000001000-0x000000000009efff] [ 0.000000] node 0: [mem 0x0000000000100000-0x00000000bfffcfff] [ 0.000000] node 0: [mem 0x0000000100000000-0x000000021fffffff] [ 0.000000] Initmem setup node 0 [mem 0x0000000000001000-0x000000021fffffff] [ 0.000000] kasan: KernelAddressSanitizer initialized [ 0.000000] ACPI: PM-Timer IO Port: 0xb008 [ 0.000000] ACPI: LAPIC_NMI (acpi_id[0xff] dfl dfl lint[0x1]) [ 0.000000] IOAPIC[0]: apic_id 0, version 17, address 0xfec00000, GSI 0-23 [ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 5 global_irq 5 high level) [ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 9 global_irq 9 high level) [ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 10 global_irq 10 high level) [ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 11 global_irq 11 high level) [ 0.000000] Using ACPI (MADT) for SMP configuration information [ 0.000000] smpboot: Allowing 2 CPUs, 0 hotplug CPUs [ 0.000000] PM: Registered nosave memory: [mem 0x00000000-0x00000fff] [ 0.000000] PM: Registered nosave memory: [mem 0x0009f000-0x0009ffff] [ 0.000000] PM: Registered nosave memory: [mem 0x000a0000-0x000effff] [ 0.000000] PM: Registered nosave memory: [mem 0x000f0000-0x000fffff] [ 0.000000] PM: Registered nosave memory: [mem 0xbfffd000-0xbfffffff] [ 0.000000] PM: Registered nosave memory: [mem 0xc0000000-0xfffbbfff] [ 0.000000] PM: Registered nosave memory: [mem 0xfffbc000-0xffffffff] [ 0.000000] e820: [mem 0xc0000000-0xfffbbfff] available for PCI devices [ 0.000000] Booting paravirtualized kernel on KVM [ 0.000000] clocksource: refined-jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604462750000 ns [ 0.000000] setup_percpu: NR_CPUS:64 nr_cpumask_bits:64 nr_cpu_ids:2 nr_node_ids:1 [ 0.000000] PERCPU: Embedded 42 pages/cpu @ffff8801db200000 s132680 r8192 d31160 u1048576 [ 0.000000] Built 1 zonelists in Zone order, mobility grouping on. Total pages: 1935238 [ 0.000000] Kernel command line: BOOT_IMAGE=/vmlinuz root=/dev/sda1 console=ttyS0 earlyprintk=serial vsyscall=native rodata=n ftrace_dump_on_oops=orig_cpu oops=panic panic_on_warn=1 nmi_watchdog=panic panic=86400 workqueue.watchdog_thresh=120 [ 0.000000] PID hash table entries: 4096 (order: 3, 32768 bytes) [ 0.000000] Dentry cache hash table entries: 1048576 (order: 11, 8388608 bytes) [ 0.000000] Inode-cache hash table entries: 524288 (order: 10, 4194304 bytes) [ 0.000000] ================================================================== [ 0.000000] BUG: KASAN: stack-out-of-bounds in reserve_bootmem_region+0xdf/0x130 [ 0.000000] Write of size 8 at addr ffffea0000047ce0 by task swapper/0 [ 0.000000] [ 0.000000] CPU: 0 PID: 0 Comm: swapper Not tainted 4.4.108-g55b3b8c #7 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 67cab4db78d2035b ffffffff84207ce8 ffffffff81d02e5d [ 0.000000] ffffea0000047ce0 ffffea0000047ce0 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d20 ffffffff814fb329 ffffea0000047ce0 [ 0.000000] Call Trace: [ 0.000000] [] dump_stack+0xc1/0x124 [ 0.000000] [] print_address_description+0x189/0x260 [ 0.000000] [] kasan_report+0x285/0x370 [ 0.000000] [] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] free_all_bootmem+0xf2/0x24d [ 0.000000] [] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [] ? dmar_table_detect+0x60/0x60 [ 0.000000] [] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [] mem_init+0x13/0x74 [ 0.000000] [] start_kernel+0x31d/0x6e9 [ 0.000000] [] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [] x86_64_start_kernel+0x140/0x163 [ 0.000000] [ 0.000000] [ 0.000000] Memory state around the buggy address: [ 0.000000] ffffea0000047b80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ffffea0000047c00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] >ffffea0000047c80: 00 00 00 00 00 00 f1 f1 f1 f1 00 00 f2 f2 00 00 [ 0.000000] ^ [ 0.000000] ffffea0000047d00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ffffea0000047d80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ================================================================== [ 0.000000] Disabling lock debugging due to kernel taint [ 0.000000] Kernel panic - not syncing: panic_on_warn set ... [ 0.000000] [ 0.000000] CPU: 0 PID: 0 Comm: swapper Tainted: G B 4.4.108-g55b3b8c #7 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 67cab4db78d2035b ffffffff84207c40 ffffffff81d02e5d [ 0.000000] ffffffff83fb34b5 ffffffff84207d18 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d08 ffffffff81417caa 0000000041b58ab3 [ 0.000000] Call Trace: [ 0.000000] [] dump_stack+0xc1/0x124 [ 0.000000] [] panic+0x1aa/0x388 [ 0.000000] [] ? percpu_up_read.constprop.45+0xe1/0xe1 [ 0.000000] [] kasan_end_report+0x50/0x50 [ 0.000000] [] kasan_report+0x15c/0x370 [ 0.000000] [] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] free_all_bootmem+0xf2/0x24d [ 0.000000] [] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [] ? dmar_table_detect+0x60/0x60 [ 0.000000] [] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [] mem_init+0x13/0x74 [ 0.000000] [] start_kernel+0x31d/0x6e9 [ 0.000000] [] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [] x86_64_start_kernel+0x140/0x163 [ 0.000000] Rebooting in 86400 seconds.. [ 0.000000] ACPI MEMORY or I/O RESET_REG. SeaBIOS (version 1.8.2-20171012_061934-google) Total RAM Size = 0x00000001e0000000 = 7680 MiB CPUs found: 2 Max CPUs supported: 2 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 0x000f3050: PCHS=0/0/0 translation=lba LCHS=520/128/63 s=4194304 Booting from Hard Disk 0... early console in decompress_kernel input_data: 0x00000000039be26e input_len: 0x0000000001424e03 output: 0x0000000001000000 output_len: 0x0000000003dcea40 run_size: 0x0000000005504000 Decompressing Linux... Parsing ELF... done. Booting the kernel. [ 0.000000] Initializing cgroup subsys cpuset [ 0.000000] Initializing cgroup subsys cpu [ 0.000000] Initializing cgroup subsys cpuacct [ 0.000000] Initializing cgroup subsys schedtune [ 0.000000] Linux version 4.4.108-g55b3b8c (syzkaller@ci) (gcc version 7.1.1 20170620 (GCC) ) #7 SMP PREEMPT Fri Dec 29 21:50:38 UTC 2017 [ 0.000000] Command line: BOOT_IMAGE=/vmlinuz root=/dev/sda1 console=ttyS0 earlyprintk=serial vsyscall=native rodata=n ftrace_dump_on_oops=orig_cpu oops=panic panic_on_warn=1 nmi_watchdog=panic panic=86400 workqueue.watchdog_thresh=120 [ 0.000000] KERNEL supported cpus: [ 0.000000] Intel GenuineIntel [ 0.000000] AMD AuthenticAMD [ 0.000000] Centaur CentaurHauls [ 0.000000] x86/fpu: xstate_offset[2]: 576, xstate_sizes[2]: 256 [ 0.000000] x86/fpu: Supporting XSAVE feature 0x01: 'x87 floating point registers' [ 0.000000] x86/fpu: Supporting XSAVE feature 0x02: 'SSE registers' [ 0.000000] x86/fpu: Supporting XSAVE feature 0x04: 'AVX registers' [ 0.000000] x86/fpu: Enabled xstate features 0x7, context size is 832 bytes, using 'standard' format. [ 0.000000] x86/fpu: Using 'eager' FPU context switches. [ 0.000000] e820: BIOS-provided physical RAM map: [ 0.000000] BIOS-e820: [mem 0x0000000000000000-0x000000000009fbff] usable [ 0.000000] BIOS-e820: [mem 0x000000000009fc00-0x000000000009ffff] reserved [ 0.000000] BIOS-e820: [mem 0x00000000000f0000-0x00000000000fffff] reserved [ 0.000000] BIOS-e820: [mem 0x0000000000100000-0x00000000bfffcfff] usable [ 0.000000] BIOS-e820: [mem 0x00000000bfffd000-0x00000000bfffffff] reserved [ 0.000000] BIOS-e820: [mem 0x00000000fffbc000-0x00000000ffffffff] reserved [ 0.000000] BIOS-e820: [mem 0x0000000100000000-0x000000021fffffff] usable [ 0.000000] bootconsole [earlyser0] enabled [ 0.000000] NX (Execute Disable) protection: active [ 0.000000] SMBIOS 2.4 present. [ 0.000000] Hypervisor detected: KVM [ 0.000000] e820: last_pfn = 0x220000 max_arch_pfn = 0x400000000 [ 0.000000] x86/PAT: Configuration [0-7]: WB WC UC- UC WB WC UC- WT [ 0.000000] e820: last_pfn = 0xbfffd max_arch_pfn = 0x400000000 [ 0.000000] found SMP MP-table at [mem 0x000f32c0-0x000f32cf] mapped at [ffff8800000f32c0] [ 0.000000] Scanning 1 areas for low memory corruption [ 0.000000] Using GB pages for direct mapping [ 0.000000] ACPI: Early table checksum verification disabled [ 0.000000] ACPI: RSDP 0x00000000000F3090 000014 (v00 Google) [ 0.000000] ACPI: RSDT 0x00000000BFFFDC70 000034 (v01 Google GOOGRSDT 00000001 GOOG 00000001) [ 0.000000] ACPI: FACP 0x00000000BFFFFF00 0000F4 (v02 Google GOOGFACP 00000001 GOOG 00000001) [ 0.000000] ACPI: DSDT 0x00000000BFFFDCB0 0017B2 (v01 Google GOOGDSDT 00000001 GOOG 00000001) [ 0.000000] ACPI: FACS 0x00000000BFFFFEC0 000040 [ 0.000000] ACPI: FACS 0x00000000BFFFFEC0 000040 [ 0.000000] ACPI: SSDT 0x00000000BFFFF590 000930 (v01 Google GOOGSSDT 00000001 GOOG 00000001) [ 0.000000] ACPI: APIC 0x00000000BFFFF4A0 000076 (v01 Google GOOGAPIC 00000001 GOOG 00000001) [ 0.000000] ACPI: WAET 0x00000000BFFFF470 000028 (v01 Google GOOGWAET 00000001 GOOG 00000001) [ 0.000000] kvm-clock: Using msrs 4b564d01 and 4b564d00 [ 0.000000] kvm-clock: cpu 0, msr 2:1fffd001, primary cpu clock [ 0.000000] kvm-clock: using sched offset of 1268175543 cycles [ 0.000000] clocksource: kvm-clock: mask: 0xffffffffffffffff max_cycles: 0x1cd42e4dffb, max_idle_ns: 881590591483 ns [ 0.000000] Zone ranges: [ 0.000000] DMA [mem 0x0000000000001000-0x0000000000ffffff] [ 0.000000] DMA32 [mem 0x0000000001000000-0x00000000ffffffff] [ 0.000000] Normal [mem 0x0000000100000000-0x000000021fffffff] [ 0.000000] Movable zone start for each node [ 0.000000] Early memory node ranges [ 0.000000] node 0: [mem 0x0000000000001000-0x000000000009efff] [ 0.000000] node 0: [mem 0x0000000000100000-0x00000000bfffcfff] [ 0.000000] node 0: [mem 0x0000000100000000-0x000000021fffffff] [ 0.000000] Initmem setup node 0 [mem 0x0000000000001000-0x000000021fffffff] [ 0.000000] kasan: KernelAddressSanitizer initialized [ 0.000000] ACPI: PM-Timer IO Port: 0xb008 [ 0.000000] ACPI: LAPIC_NMI (acpi_id[0xff] dfl dfl lint[0x1]) [ 0.000000] IOAPIC[0]: apic_id 0, version 17, address 0xfec00000, GSI 0-23 [ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 5 global_irq 5 high level) [ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 9 global_irq 9 high level) [ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 10 global_irq 10 high level) [ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 11 global_irq 11 high level) [ 0.000000] Using ACPI (MADT) for SMP configuration information [ 0.000000] smpboot: Allowing 2 CPUs, 0 hotplug CPUs [ 0.000000] PM: Registered nosave memory: [mem 0x00000000-0x00000fff] [ 0.000000] PM: Registered nosave memory: [mem 0x0009f000-0x0009ffff] [ 0.000000] PM: Registered nosave memory: [mem 0x000a0000-0x000effff] [ 0.000000] PM: Registered nosave memory: [mem 0x000f0000-0x000fffff] [ 0.000000] PM: Registered nosave memory: [mem 0xbfffd000-0xbfffffff] [ 0.000000] PM: Registered nosave memory: [mem 0xc0000000-0xfffbbfff] [ 0.000000] PM: Registered nosave memory: [mem 0xfffbc000-0xffffffff] [ 0.000000] e820: [mem 0xc0000000-0xfffbbfff] available for PCI devices [ 0.000000] Booting paravirtualized kernel on KVM [ 0.000000] clocksource: refined-jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604462750000 ns [ 0.000000] setup_percpu: NR_CPUS:64 nr_cpumask_bits:64 nr_cpu_ids:2 nr_node_ids:1 [ 0.000000] PERCPU: Embedded 42 pages/cpu @ffff8801db200000 s132680 r8192 d31160 u1048576 [ 0.000000] Built 1 zonelists in Zone order, mobility grouping on. Total pages: 1935238 [ 0.000000] Kernel command line: BOOT_IMAGE=/vmlinuz root=/dev/sda1 console=ttyS0 earlyprintk=serial vsyscall=native rodata=n ftrace_dump_on_oops=orig_cpu oops=panic panic_on_warn=1 nmi_watchdog=panic panic=86400 workqueue.watchdog_thresh=120 [ 0.000000] PID hash table entries: 4096 (order: 3, 32768 bytes) [ 0.000000] Dentry cache hash table entries: 1048576 (order: 11, 8388608 bytes) [ 0.000000] Inode-cache hash table entries: 524288 (order: 10, 4194304 bytes) [ 0.000000] ================================================================== [ 0.000000] BUG: KASAN: stack-out-of-bounds in reserve_bootmem_region+0xdf/0x130 [ 0.000000] Write of size 8 at addr ffffea0000047ce0 by task swapper/0 [ 0.000000] [ 0.000000] CPU: 0 PID: 0 Comm: swapper Not tainted 4.4.108-g55b3b8c #7 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 71e2c11182ea0f91 ffffffff84207ce8 ffffffff81d02e5d [ 0.000000] ffffea0000047ce0 ffffea0000047ce0 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d20 ffffffff814fb329 ffffea0000047ce0 [ 0.000000] Call Trace: [ 0.000000] [] dump_stack+0xc1/0x124 [ 0.000000] [] print_address_description+0x189/0x260 [ 0.000000] [] kasan_report+0x285/0x370 [ 0.000000] [] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] free_all_bootmem+0xf2/0x24d [ 0.000000] [] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [] ? dmar_table_detect+0x60/0x60 [ 0.000000] [] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [] mem_init+0x13/0x74 [ 0.000000] [] start_kernel+0x31d/0x6e9 [ 0.000000] [] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [] x86_64_start_kernel+0x140/0x163 [ 0.000000] [ 0.000000] [ 0.000000] Memory state around the buggy address: [ 0.000000] ffffea0000047b80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ffffea0000047c00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] >ffffea0000047c80: 00 00 00 00 00 00 f1 f1 f1 f1 00 00 f2 f2 00 00 [ 0.000000] ^ [ 0.000000] ffffea0000047d00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ffffea0000047d80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ================================================================== [ 0.000000] Disabling lock debugging due to kernel taint [ 0.000000] Kernel panic - not syncing: panic_on_warn set ... [ 0.000000] [ 0.000000] CPU: 0 PID: 0 Comm: swapper Tainted: G B 4.4.108-g55b3b8c #7 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 71e2c11182ea0f91 ffffffff84207c40 ffffffff81d02e5d [ 0.000000] ffffffff83fb34b5 ffffffff84207d18 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d08 ffffffff81417caa 0000000041b58ab3 [ 0.000000] Call Trace: [ 0.000000] [] dump_stack+0xc1/0x124 [ 0.000000] [] panic+0x1aa/0x388 [ 0.000000] [] ? percpu_up_read.constprop.45+0xe1/0xe1 [ 0.000000] [] kasan_end_report+0x50/0x50 [ 0.000000] [] kasan_report+0x15c/0x370 [ 0.000000] [] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] free_all_bootmem+0xf2/0x24d [ 0.000000] [] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [] ? dmar_table_detect+0x60/0x60 [ 0.000000] [] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [] mem_init+0x13/0x74 [ 0.000000] [] start_kernel+0x31d/0x6e9 [ 0.000000] [] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [] x86_64_start_kernel+0x140/0x163 [ 0.000000] Rebooting in 86400 seconds.. [ 0.000000] ACPI MEMORY or I/O RESET_REG. SeaBIOS (version 1.8.2-20171012_061934-google) Total RAM Size = 0x00000001e0000000 = 7680 MiB CPUs found: 2 Max CPUs supported: 2 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 0x000f3050: PCHS=0/0/0 translation=lba LCHS=520/128/63 s=4194304 Booting from Hard Disk 0... early console in decompress_kernel input_data: 0x00000000039be26e input_len: 0x0000000001424e03 output: 0x0000000001000000 output_len: 0x0000000003dcea40 run_size: 0x0000000005504000 Decompressing Linux... Parsing ELF... done. Booting the kernel. [ 0.000000] Initializing cgroup subsys cpuset [ 0.000000] Initializing cgroup subsys cpu [ 0.000000] Initializing cgroup subsys cpuacct [ 0.000000] Initializing cgroup subsys schedtune [ 0.000000] Linux version 4.4.108-g55b3b8c (syzkaller@ci) (gcc version 7.1.1 20170620 (GCC) ) #7 SMP PREEMPT Fri Dec 29 21:50:38 UTC 2017 [ 0.000000] Command line: BOOT_IMAGE=/vmlinuz root=/dev/sda1 console=ttyS0 earlyprintk=serial vsyscall=native rodata=n ftrace_dump_on_oops=orig_cpu oops=panic panic_on_warn=1 nmi_watchdog=panic panic=86400 workqueue.watchdog_thresh=120 [ 0.000000] KERNEL supported cpus: [ 0.000000] Intel GenuineIntel [ 0.000000] AMD AuthenticAMD [ 0.000000] Centaur CentaurHauls [ 0.000000] x86/fpu: xstate_offset[2]: 576, xstate_sizes[2]: 256 [ 0.000000] x86/fpu: Supporting XSAVE feature 0x01: 'x87 floating point registers' [ 0.000000] x86/fpu: Supporting XSAVE feature 0x02: 'SSE registers' [ 0.000000] x86/fpu: Supporting XSAVE feature 0x04: 'AVX registers' [ 0.000000] x86/fpu: Enabled xstate features 0x7, context size is 832 bytes, using 'standard' format. [ 0.000000] x86/fpu: Using 'eager' FPU context switches. [ 0.000000] e820: BIOS-provided physical RAM map: [ 0.000000] BIOS-e820: [mem 0x0000000000000000-0x000000000009fbff] usable [ 0.000000] BIOS-e820: [mem 0x000000000009fc00-0x000000000009ffff] reserved [ 0.000000] BIOS-e820: [mem 0x00000000000f0000-0x00000000000fffff] reserved [ 0.000000] BIOS-e820: [mem 0x0000000000100000-0x00000000bfffcfff] usable [ 0.000000] BIOS-e820: [mem 0x00000000bfffd000-0x00000000bfffffff] reserved [ 0.000000] BIOS-e820: [mem 0x00000000fffbc000-0x00000000ffffffff] reserved [ 0.000000] BIOS-e820: [mem 0x0000000100000000-0x000000021fffffff] usable [ 0.000000] bootconsole [earlyser0] enabled [ 0.000000] NX (Execute Disable) protection: active [ 0.000000] SMBIOS 2.4 present. [ 0.000000] Hypervisor detected: KVM [ 0.000000] e820: last_pfn = 0x220000 max_arch_pfn = 0x400000000 [ 0.000000] x86/PAT: Configuration [0-7]: WB WC UC- UC WB WC UC- WT [ 0.000000] e820: last_pfn = 0xbfffd max_arch_pfn = 0x400000000 [ 0.000000] found SMP MP-table at [mem 0x000f32c0-0x000f32cf] mapped at [ffff8800000f32c0] [ 0.000000] Scanning 1 areas for low memory corruption [ 0.000000] Using GB pages for direct mapping [ 0.000000] ACPI: Early table checksum verification disabled [ 0.000000] ACPI: RSDP 0x00000000000F3090 000014 (v00 Google) [ 0.000000] ACPI: RSDT 0x00000000BFFFDC70 000034 (v01 Google GOOGRSDT 00000001 GOOG 00000001) [ 0.000000] ACPI: FACP 0x00000000BFFFFF00 0000F4 (v02 Google GOOGFACP 00000001 GOOG 00000001) [ 0.000000] ACPI: DSDT 0x00000000BFFFDCB0 0017B2 (v01 Google GOOGDSDT 00000001 GOOG 00000001) [ 0.000000] ACPI: FACS 0x00000000BFFFFEC0 000040 [ 0.000000] ACPI: FACS 0x00000000BFFFFEC0 000040 [ 0.000000] ACPI: SSDT 0x00000000BFFFF590 000930 (v01 Google GOOGSSDT 00000001 GOOG 00000001) [ 0.000000] ACPI: APIC 0x00000000BFFFF4A0 000076 (v01 Google GOOGAPIC 00000001 GOOG 00000001) [ 0.000000] ACPI: WAET 0x00000000BFFFF470 000028 (v01 Google GOOGWAET 00000001 GOOG 00000001) [ 0.000000] kvm-clock: Using msrs 4b564d01 and 4b564d00 [ 0.000000] kvm-clock: cpu 0, msr 2:1fffd001, primary cpu clock [ 0.000000] kvm-clock: using sched offset of 1165067984 cycles [ 0.000000] clocksource: kvm-clock: mask: 0xffffffffffffffff max_cycles: 0x1cd42e4dffb, max_idle_ns: 881590591483 ns [ 0.000000] Zone ranges: [ 0.000000] DMA [mem 0x0000000000001000-0x0000000000ffffff] [ 0.000000] DMA32 [mem 0x0000000001000000-0x00000000ffffffff] [ 0.000000] Normal [mem 0x0000000100000000-0x000000021fffffff] [ 0.000000] Movable zone start for each node [ 0.000000] Early memory node ranges [ 0.000000] node 0: [mem 0x0000000000001000-0x000000000009efff] [ 0.000000] node 0: [mem 0x0000000000100000-0x00000000bfffcfff] [ 0.000000] node 0: [mem 0x0000000100000000-0x000000021fffffff] [ 0.000000] Initmem setup node 0 [mem 0x0000000000001000-0x000000021fffffff] [ 0.000000] kasan: KernelAddressSanitizer initialized [ 0.000000] ACPI: PM-Timer IO Port: 0xb008 [ 0.000000] ACPI: LAPIC_NMI (acpi_id[0xff] dfl dfl lint[0x1]) [ 0.000000] IOAPIC[0]: apic_id 0, version 17, address 0xfec00000, GSI 0-23 [ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 5 global_irq 5 high level) [ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 9 global_irq 9 high level) [ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 10 global_irq 10 high level) [ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 11 global_irq 11 high level) [ 0.000000] Using ACPI (MADT) for SMP configuration information [ 0.000000] smpboot: Allowing 2 CPUs, 0 hotplug CPUs [ 0.000000] PM: Registered nosave memory: [mem 0x00000000-0x00000fff] [ 0.000000] PM: Registered nosave memory: [mem 0x0009f000-0x0009ffff] [ 0.000000] PM: Registered nosave memory: [mem 0x000a0000-0x000effff] [ 0.000000] PM: Registered nosave memory: [mem 0x000f0000-0x000fffff] [ 0.000000] PM: Registered nosave memory: [mem 0xbfffd000-0xbfffffff] [ 0.000000] PM: Registered nosave memory: [mem 0xc0000000-0xfffbbfff] [ 0.000000] PM: Registered nosave memory: [mem 0xfffbc000-0xffffffff] [ 0.000000] e820: [mem 0xc0000000-0xfffbbfff] available for PCI devices [ 0.000000] Booting paravirtualized kernel on KVM [ 0.000000] clocksource: refined-jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604462750000 ns [ 0.000000] setup_percpu: NR_CPUS:64 nr_cpumask_bits:64 nr_cpu_ids:2 nr_node_ids:1 [ 0.000000] PERCPU: Embedded 42 pages/cpu @ffff8801db200000 s132680 r8192 d31160 u1048576 [ 0.000000] Built 1 zonelists in Zone order, mobility grouping on. Total pages: 1935238 [ 0.000000] Kernel command line: BOOT_IMAGE=/vmlinuz root=/dev/sda1 console=ttyS0 earlyprintk=serial vsyscall=native rodata=n ftrace_dump_on_oops=orig_cpu oops=panic panic_on_warn=1 nmi_watchdog=panic panic=86400 workqueue.watchdog_thresh=120 [ 0.000000] PID hash table entries: 4096 (order: 3, 32768 bytes) [ 0.000000] Dentry cache hash table entries: 1048576 (order: 11, 8388608 bytes) [ 0.000000] Inode-cache hash table entries: 524288 (order: 10, 4194304 bytes) [ 0.000000] ================================================================== [ 0.000000] BUG: KASAN: stack-out-of-bounds in reserve_bootmem_region+0xdf/0x130 [ 0.000000] Write of size 8 at addr ffffea0000047ce0 by task swapper/0 [ 0.000000] [ 0.000000] CPU: 0 PID: 0 Comm: swapper Not tainted 4.4.108-g55b3b8c #7 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 63e89e4a74efecca ffffffff84207ce8 ffffffff81d02e5d [ 0.000000] ffffea0000047ce0 ffffea0000047ce0 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d20 ffffffff814fb329 ffffea0000047ce0 [ 0.000000] Call Trace: [ 0.000000] [] dump_stack+0xc1/0x124 [ 0.000000] [] print_address_description+0x189/0x260 [ 0.000000] [] kasan_report+0x285/0x370 [ 0.000000] [] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] free_all_bootmem+0xf2/0x24d [ 0.000000] [] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [] ? dmar_table_detect+0x60/0x60 [ 0.000000] [] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [] mem_init+0x13/0x74 [ 0.000000] [] start_kernel+0x31d/0x6e9 [ 0.000000] [] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [] x86_64_start_kernel+0x140/0x163 [ 0.000000] [ 0.000000] [ 0.000000] Memory state around the buggy address: [ 0.000000] ffffea0000047b80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ffffea0000047c00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] >ffffea0000047c80: 00 00 00 00 00 00 f1 f1 f1 f1 00 00 f2 f2 00 00 [ 0.000000] ^ [ 0.000000] ffffea0000047d00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ffffea0000047d80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ================================================================== [ 0.000000] Disabling lock debugging due to kernel taint [ 0.000000] Kernel panic - not syncing: panic_on_warn set ... [ 0.000000] [ 0.000000] CPU: 0 PID: 0 Comm: swapper Tainted: G B 4.4.108-g55b3b8c #7 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 63e89e4a74efecca ffffffff84207c40 ffffffff81d02e5d [ 0.000000] ffffffff83fb34b5 ffffffff84207d18 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d08 ffffffff81417caa 0000000041b58ab3 [ 0.000000] Call Trace: [ 0.000000] [] dump_stack+0xc1/0x124 [ 0.000000] [] panic+0x1aa/0x388 [ 0.000000] [] ? percpu_up_read.constprop.45+0xe1/0xe1 [ 0.000000] [] kasan_end_report+0x50/0x50 [ 0.000000] [] kasan_report+0x15c/0x370 [ 0.000000] [] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] free_all_bootmem+0xf2/0x24d [ 0.000000] [] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [] ? dmar_table_detect+0x60/0x60 [ 0.000000] [] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [] mem_init+0x13/0x74 [ 0.000000] [] start_kernel+0x31d/0x6e9 [ 0.000000] [] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [] x86_64_start_kernel+0x140/0x163 [ 0.000000] Rebooting in 86400 seconds.. [ 0.000000] ACPI MEMORY or I/O RESET_REG. SeaBIOS (version 1.8.2-20171012_061934-google) Total RAM Size = 0x00000001e0000000 = 7680 MiB CPUs found: 2 Max CPUs supported: 2 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 0x000f3050: PCHS=0/0/0 translation=lba LCHS=520/128/63 s=4194304 Booting from Hard Disk 0... early console in decompress_kernel input_data: 0x00000000039be26e input_len: 0x0000000001424e03 output: 0x0000000001000000 output_len: 0x0000000003dcea40 run_size: 0x0000000005504000 Decompressing Linux... Parsing ELF... done. Booting the kernel. [ 0.000000] Initializing cgroup subsys cpuset [ 0.000000] Initializing cgroup subsys cpu [ 0.000000] Initializing cgroup subsys cpuacct [ 0.000000] Initializing cgroup subsys schedtune [ 0.000000] Linux version 4.4.108-g55b3b8c (syzkaller@ci) (gcc version 7.1.1 20170620 (GCC) ) #7 SMP PREEMPT Fri Dec 29 21:50:38 UTC 2017 [ 0.000000] Command line: BOOT_IMAGE=/vmlinuz root=/dev/sda1 console=ttyS0 earlyprintk=serial vsyscall=native rodata=n ftrace_dump_on_oops=orig_cpu oops=panic panic_on_warn=1 nmi_watchdog=panic panic=86400 workqueue.watchdog_thresh=120 [ 0.000000] KERNEL supported cpus: [ 0.000000] Intel GenuineIntel [ 0.000000] AMD AuthenticAMD [ 0.000000] Centaur CentaurHauls [ 0.000000] x86/fpu: xstate_offset[2]: 576, xstate_sizes[2]: 256 [ 0.000000] x86/fpu: Supporting XSAVE feature 0x01: 'x87 floating point registers' [ 0.000000] x86/fpu: Supporting XSAVE feature 0x02: 'SSE registers' [ 0.000000] x86/fpu: Supporting XSAVE feature 0x04: 'AVX registers' [ 0.000000] x86/fpu: Enabled xstate features 0x7, context size is 832 bytes, using 'standard' format. [ 0.000000] x86/fpu: Using 'eager' FPU context switches. [ 0.000000] e820: BIOS-provided physical RAM map: [ 0.000000] BIOS-e820: [mem 0x0000000000000000-0x000000000009fbff] usable [ 0.000000] BIOS-e820: [mem 0x000000000009fc00-0x000000000009ffff] reserved [ 0.000000] BIOS-e820: [mem 0x00000000000f0000-0x00000000000fffff] reserved [ 0.000000] BIOS-e820: [mem 0x0000000000100000-0x00000000bfffcfff] usable [ 0.000000] BIOS-e820: [mem 0x00000000bfffd000-0x00000000bfffffff] reserved [ 0.000000] BIOS-e820: [mem 0x00000000fffbc000-0x00000000ffffffff] reserved [ 0.000000] BIOS-e820: [mem 0x0000000100000000-0x000000021fffffff] usable [ 0.000000] bootconsole [earlyser0] enabled [ 0.000000] NX (Execute Disable) protection: active [ 0.000000] SMBIOS 2.4 present. [ 0.000000] Hypervisor detected: KVM [ 0.000000] e820: last_pfn = 0x220000 max_arch_pfn = 0x400000000 [ 0.000000] x86/PAT: Configuration [0-7]: WB WC UC- UC WB WC UC- WT [ 0.000000] e820: last_pfn = 0xbfffd max_arch_pfn = 0x400000000 [ 0.000000] found SMP MP-table at [mem 0x000f32c0-0x000f32cf] mapped at [ffff8800000f32c0] [ 0.000000] Scanning 1 areas for low memory corruption [ 0.000000] Using GB pages for direct mapping [ 0.000000] ACPI: Early table checksum verification disabled [ 0.000000] ACPI: RSDP 0x00000000000F3090 000014 (v00 Google) [ 0.000000] ACPI: RSDT 0x00000000BFFFDC70 000034 (v01 Google GOOGRSDT 00000001 GOOG 00000001) [ 0.000000] ACPI: FACP 0x00000000BFFFFF00 0000F4 (v02 Google GOOGFACP 00000001 GOOG 00000001) [ 0.000000] ACPI: DSDT 0x00000000BFFFDCB0 0017B2 (v01 Google GOOGDSDT 00000001 GOOG 00000001) [ 0.000000] ACPI: FACS 0x00000000BFFFFEC0 000040 [ 0.000000] ACPI: FACS 0x00000000BFFFFEC0 000040 [ 0.000000] ACPI: SSDT 0x00000000BFFFF590 000930 (v01 Google GOOGSSDT 00000001 GOOG 00000001) [ 0.000000] ACPI: APIC 0x00000000BFFFF4A0 000076 (v01 Google GOOGAPIC 00000001 GOOG 00000001) [ 0.000000] ACPI: WAET 0x00000000BFFFF470 000028 (v01 Google GOOGWAET 00000001 GOOG 00000001) [ 0.000000] kvm-clock: Using msrs 4b564d01 and 4b564d00 [ 0.000000] kvm-clock: cpu 0, msr 2:1fffd001, primary cpu clock [ 0.000000] kvm-clock: using sched offset of 1227022667 cycles [ 0.000000] clocksource: kvm-clock: mask: 0xffffffffffffffff max_cycles: 0x1cd42e4dffb, max_idle_ns: 881590591483 ns [ 0.000000] Zone ranges: [ 0.000000] DMA [mem 0x0000000000001000-0x0000000000ffffff] [ 0.000000] DMA32 [mem 0x0000000001000000-0x00000000ffffffff] [ 0.000000] Normal [mem 0x0000000100000000-0x000000021fffffff] [ 0.000000] Movable zone start for each node [ 0.000000] Early memory node ranges [ 0.000000] node 0: [mem 0x0000000000001000-0x000000000009efff] [ 0.000000] node 0: [mem 0x0000000000100000-0x00000000bfffcfff] [ 0.000000] node 0: [mem 0x0000000100000000-0x000000021fffffff] [ 0.000000] Initmem setup node 0 [mem 0x0000000000001000-0x000000021fffffff] [ 0.000000] kasan: KernelAddressSanitizer initialized [ 0.000000] ACPI: PM-Timer IO Port: 0xb008 [ 0.000000] ACPI: LAPIC_NMI (acpi_id[0xff] dfl dfl lint[0x1]) [ 0.000000] IOAPIC[0]: apic_id 0, version 17, address 0xfec00000, GSI 0-23 [ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 5 global_irq 5 high level) [ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 9 global_irq 9 high level) [ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 10 global_irq 10 high level) [ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 11 global_irq 11 high level) [ 0.000000] Using ACPI (MADT) for SMP configuration information [ 0.000000] smpboot: Allowing 2 CPUs, 0 hotplug CPUs [ 0.000000] PM: Registered nosave memory: [mem 0x00000000-0x00000fff] [ 0.000000] PM: Registered nosave memory: [mem 0x0009f000-0x0009ffff] [ 0.000000] PM: Registered nosave memory: [mem 0x000a0000-0x000effff] [ 0.000000] PM: Registered nosave memory: [mem 0x000f0000-0x000fffff] [ 0.000000] PM: Registered nosave memory: [mem 0xbfffd000-0xbfffffff] [ 0.000000] PM: Registered nosave memory: [mem 0xc0000000-0xfffbbfff] [ 0.000000] PM: Registered nosave memory: [mem 0xfffbc000-0xffffffff] [ 0.000000] e820: [mem 0xc0000000-0xfffbbfff] available for PCI devices [ 0.000000] Booting paravirtualized kernel on KVM [ 0.000000] clocksource: refined-jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604462750000 ns [ 0.000000] setup_percpu: NR_CPUS:64 nr_cpumask_bits:64 nr_cpu_ids:2 nr_node_ids:1 [ 0.000000] PERCPU: Embedded 42 pages/cpu @ffff8801db200000 s132680 r8192 d31160 u1048576 [ 0.000000] Built 1 zonelists in Zone order, mobility grouping on. Total pages: 1935238 [ 0.000000] Kernel command line: BOOT_IMAGE=/vmlinuz root=/dev/sda1 console=ttyS0 earlyprintk=serial vsyscall=native rodata=n ftrace_dump_on_oops=orig_cpu oops=panic panic_on_warn=1 nmi_watchdog=panic panic=86400 workqueue.watchdog_thresh=120 [ 0.000000] PID hash table entries: 4096 (order: 3, 32768 bytes) [ 0.000000] Dentry cache hash table entries: 1048576 (order: 11, 8388608 bytes) [ 0.000000] Inode-cache hash table entries: 524288 (order: 10, 4194304 bytes) [ 0.000000] ================================================================== [ 0.000000] BUG: KASAN: stack-out-of-bounds in reserve_bootmem_region+0xdf/0x130 [ 0.000000] Write of size 8 at addr ffffea0000047ce0 by task swapper/0 [ 0.000000] [ 0.000000] CPU: 0 PID: 0 Comm: swapper Not tainted 4.4.108-g55b3b8c #7 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 6c6f44bd7d76933d ffffffff84207ce8 ffffffff81d02e5d [ 0.000000] ffffea0000047ce0 ffffea0000047ce0 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d20 ffffffff814fb329 ffffea0000047ce0 [ 0.000000] Call Trace: [ 0.000000] [] dump_stack+0xc1/0x124 [ 0.000000] [] print_address_description+0x189/0x260 [ 0.000000] [] kasan_report+0x285/0x370 [ 0.000000] [] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] free_all_bootmem+0xf2/0x24d [ 0.000000] [] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [] ? dmar_table_detect+0x60/0x60 [ 0.000000] [] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [] mem_init+0x13/0x74 [ 0.000000] [] start_kernel+0x31d/0x6e9 [ 0.000000] [] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [] x86_64_start_kernel+0x140/0x163 [ 0.000000] [ 0.000000] [ 0.000000] Memory state around the buggy address: [ 0.000000] ffffea0000047b80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ffffea0000047c00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] >ffffea0000047c80: 00 00 00 00 00 00 f1 f1 f1 f1 00 00 f2 f2 00 00 [ 0.000000] ^ [ 0.000000] ffffea0000047d00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ffffea0000047d80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ================================================================== [ 0.000000] Disabling lock debugging due to kernel taint [ 0.000000] Kernel panic - not syncing: panic_on_warn set ... [ 0.000000] [ 0.000000] CPU: 0 PID: 0 Comm: swapper Tainted: G B 4.4.108-g55b3b8c #7 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 6c6f44bd7d76933d ffffffff84207c40 ffffffff81d02e5d [ 0.000000] ffffffff83fb34b5 ffffffff84207d18 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d08 ffffffff81417caa 0000000041b58ab3 [ 0.000000] Call Trace: [ 0.000000] [] dump_stack+0xc1/0x124 [ 0.000000] [] panic+0x1aa/0x388 [ 0.000000] [] ? percpu_up_read.constprop.45+0xe1/0xe1 [ 0.000000] [] kasan_end_report+0x50/0x50 [ 0.000000] [] kasan_report+0x15c/0x370 [ 0.000000] [] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] free_all_bootmem+0xf2/0x24d [ 0.000000] [] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [] ? dmar_table_detect+0x60/0x60 [ 0.000000] [] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [] mem_init+0x13/0x74 [ 0.000000] [] start_kernel+0x31d/0x6e9 [ 0.000000] [] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [] x86_64_start_kernel+0x140/0x163 [ 0.000000] Rebooting in 86400 seconds.. [ 0.000000] ACPI MEMORY or I/O RESET_REG. SeaBIOS (version 1.8.2-20171012_061934-google) Total RAM Size = 0x00000001e0000000 = 7680 MiB CPUs found: 2 Max CPUs supported: 2 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 0x000f3050: PCHS=0/0/0 translation=lba LCHS=520/128/63 s=4194304 Booting from Hard Disk 0... early console in decompress_kernel input_data: 0x00000000039be26e input_len: 0x0000000001424e03 output: 0x0000000001000000 output_len: 0x0000000003dcea40 run_size: 0x0000000005504000 Decompressing Linux... Parsing ELF... done. Booting the kernel. [ 0.000000] Initializing cgroup subsys cpuset [ 0.000000] Initializing cgroup subsys cpu [ 0.000000] Initializing cgroup subsys cpuacct [ 0.000000] Initializing cgroup subsys schedtune [ 0.000000] Linux version 4.4.108-g55b3b8c (syzkaller@ci) (gcc version 7.1.1 20170620 (GCC) ) #7 SMP PREEMPT Fri Dec 29 21:50:38 UTC 2017 [ 0.000000] Command line: BOOT_IMAGE=/vmlinuz root=/dev/sda1 console=ttyS0 earlyprintk=serial vsyscall=native rodata=n ftrace_dump_on_oops=orig_cpu oops=panic panic_on_warn=1 nmi_watchdog=panic panic=86400 workqueue.watchdog_thresh=120 [ 0.000000] KERNEL supported cpus: [ 0.000000] Intel GenuineIntel [ 0.000000] AMD AuthenticAMD [ 0.000000] Centaur CentaurHauls [ 0.000000] x86/fpu: xstate_offset[2]: 576, xstate_sizes[2]: 256 [ 0.000000] x86/fpu: Supporting XSAVE feature 0x01: 'x87 floating point registers' [ 0.000000] x86/fpu: Supporting XSAVE feature 0x02: 'SSE registers' [ 0.000000] x86/fpu: Supporting XSAVE feature 0x04: 'AVX registers' [ 0.000000] x86/fpu: Enabled xstate features 0x7, context size is 832 bytes, using 'standard' format. [ 0.000000] x86/fpu: Using 'eager' FPU context switches. [ 0.000000] e820: BIOS-provided physical RAM map: [ 0.000000] BIOS-e820: [mem 0x0000000000000000-0x000000000009fbff] usable [ 0.000000] BIOS-e820: [mem 0x000000000009fc00-0x000000000009ffff] reserved [ 0.000000] BIOS-e820: [mem 0x00000000000f0000-0x00000000000fffff] reserved [ 0.000000] BIOS-e820: [mem 0x0000000000100000-0x00000000bfffcfff] usable [ 0.000000] BIOS-e820: [mem 0x00000000bfffd000-0x00000000bfffffff] reserved [ 0.000000] BIOS-e820: [mem 0x00000000fffbc000-0x00000000ffffffff] reserved [ 0.000000] BIOS-e820: [mem 0x0000000100000000-0x000000021fffffff] usable [ 0.000000] bootconsole [earlyser0] enabled [ 0.000000] NX (Execute Disable) protection: active [ 0.000000] SMBIOS 2.4 present. [ 0.000000] Hypervisor detected: KVM [ 0.000000] e820: last_pfn = 0x220000 max_arch_pfn = 0x400000000 [ 0.000000] x86/PAT: Configuration [0-7]: WB WC UC- UC WB WC UC- WT [ 0.000000] e820: last_pfn = 0xbfffd max_arch_pfn = 0x400000000 [ 0.000000] found SMP MP-table at [mem 0x000f32c0-0x000f32cf] mapped at [ffff8800000f32c0] [ 0.000000] Scanning 1 areas for low memory corruption [ 0.000000] Using GB pages for direct mapping [ 0.000000] ACPI: Early table checksum verification disabled [ 0.000000] ACPI: RSDP 0x00000000000F3090 000014 (v00 Google) [ 0.000000] ACPI: RSDT 0x00000000BFFFDC70 000034 (v01 Google GOOGRSDT 00000001 GOOG 00000001) [ 0.000000] ACPI: FACP 0x00000000BFFFFF00 0000F4 (v02 Google GOOGFACP 00000001 GOOG 00000001) [ 0.000000] ACPI: DSDT 0x00000000BFFFDCB0 0017B2 (v01 Google GOOGDSDT 00000001 GOOG 00000001) [ 0.000000] ACPI: FACS 0x00000000BFFFFEC0 000040 [ 0.000000] ACPI: FACS 0x00000000BFFFFEC0 000040 [ 0.000000] ACPI: SSDT 0x00000000BFFFF590 000930 (v01 Google GOOGSSDT 00000001 GOOG 00000001) [ 0.000000] ACPI: APIC 0x00000000BFFFF4A0 000076 (v01 Google GOOGAPIC 00000001 GOOG 00000001) [ 0.000000] ACPI: WAET 0x00000000BFFFF470 000028 (v01 Google GOOGWAET 00000001 GOOG 00000001) [ 0.000000] kvm-clock: Using msrs 4b564d01 and 4b564d00 [ 0.000000] kvm-clock: cpu 0, msr 2:1fffd001, primary cpu clock [ 0.000000] kvm-clock: using sched offset of 1274090949 cycles [ 0.000000] clocksource: kvm-clock: mask: 0xffffffffffffffff max_cycles: 0x1cd42e4dffb, max_idle_ns: 881590591483 ns [ 0.000000] Zone ranges: [ 0.000000] DMA [mem 0x0000000000001000-0x0000000000ffffff] [ 0.000000] DMA32 [mem 0x0000000001000000-0x00000000ffffffff] [ 0.000000] Normal [mem 0x0000000100000000-0x000000021fffffff] [ 0.000000] Movable zone start for each node [ 0.000000] Early memory node ranges [ 0.000000] node 0: [mem 0x0000000000001000-0x000000000009efff] [ 0.000000] node 0: [mem 0x0000000000100000-0x00000000bfffcfff] [ 0.000000] node 0: [mem 0x0000000100000000-0x000000021fffffff] [ 0.000000] Initmem setup node 0 [mem 0x0000000000001000-0x000000021fffffff] [ 0.000000] kasan: KernelAddressSanitizer initialized [ 0.000000] ACPI: PM-Timer IO Port: 0xb008 [ 0.000000] ACPI: LAPIC_NMI (acpi_id[0xff] dfl dfl lint[0x1]) [ 0.000000] IOAPIC[0]: apic_id 0, version 17, address 0xfec00000, GSI 0-23 [ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 5 global_irq 5 high level) [ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 9 global_irq 9 high level) [ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 10 global_irq 10 high level) [ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 11 global_irq 11 high level) [ 0.000000] Using ACPI (MADT) for SMP configuration information [ 0.000000] smpboot: Allowing 2 CPUs, 0 hotplug CPUs [ 0.000000] PM: Registered nosave memory: [mem 0x00000000-0x00000fff] [ 0.000000] PM: Registered nosave memory: [mem 0x0009f000-0x0009ffff] [ 0.000000] PM: Registered nosave memory: [mem 0x000a0000-0x000effff] [ 0.000000] PM: Registered nosave memory: [mem 0x000f0000-0x000fffff] [ 0.000000] PM: Registered nosave memory: [mem 0xbfffd000-0xbfffffff] [ 0.000000] PM: Registered nosave memory: [mem 0xc0000000-0xfffbbfff] [ 0.000000] PM: Registered nosave memory: [mem 0xfffbc000-0xffffffff] [ 0.000000] e820: [mem 0xc0000000-0xfffbbfff] available for PCI devices [ 0.000000] Booting paravirtualized kernel on KVM [ 0.000000] clocksource: refined-jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604462750000 ns [ 0.000000] setup_percpu: NR_CPUS:64 nr_cpumask_bits:64 nr_cpu_ids:2 nr_node_ids:1 [ 0.000000] PERCPU: Embedded 42 pages/cpu @ffff8801db200000 s132680 r8192 d31160 u1048576 [ 0.000000] Built 1 zonelists in Zone order, mobility grouping on. Total pages: 1935238 [ 0.000000] Kernel command line: BOOT_IMAGE=/vmlinuz root=/dev/sda1 console=ttyS0 earlyprintk=serial vsyscall=native rodata=n ftrace_dump_on_oops=orig_cpu oops=panic panic_on_warn=1 nmi_watchdog=panic panic=86400 workqueue.watchdog_thresh=120 [ 0.000000] PID hash table entries: 4096 (order: 3, 32768 bytes) [ 0.000000] Dentry cache hash table entries: 1048576 (order: 11, 8388608 bytes) [ 0.000000] Inode-cache hash table entries: 524288 (order: 10, 4194304 bytes) [ 0.000000] ================================================================== [ 0.000000] BUG: KASAN: stack-out-of-bounds in reserve_bootmem_region+0xdf/0x130 [ 0.000000] Write of size 8 at addr ffffea0000047ce0 by task swapper/0 [ 0.000000] [ 0.000000] CPU: 0 PID: 0 Comm: swapper Not tainted 4.4.108-g55b3b8c #7 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 72d0048a83d7530a ffffffff84207ce8 ffffffff81d02e5d [ 0.000000] ffffea0000047ce0 ffffea0000047ce0 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d20 ffffffff814fb329 ffffea0000047ce0 [ 0.000000] Call Trace: [ 0.000000] [] dump_stack+0xc1/0x124 [ 0.000000] [] print_address_description+0x189/0x260 [ 0.000000] [] kasan_report+0x285/0x370 [ 0.000000] [] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] free_all_bootmem+0xf2/0x24d [ 0.000000] [] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [] ? dmar_table_detect+0x60/0x60 [ 0.000000] [] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [] mem_init+0x13/0x74 [ 0.000000] [] start_kernel+0x31d/0x6e9 [ 0.000000] [] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [] x86_64_start_kernel+0x140/0x163 [ 0.000000] [ 0.000000] [ 0.000000] Memory state around the buggy address: [ 0.000000] ffffea0000047b80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ffffea0000047c00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] >ffffea0000047c80: 00 00 00 00 00 00 f1 f1 f1 f1 00 00 f2 f2 00 00 [ 0.000000] ^ [ 0.000000] ffffea0000047d00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ffffea0000047d80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ================================================================== [ 0.000000] Disabling lock debugging due to kernel taint [ 0.000000] Kernel panic - not syncing: panic_on_warn set ... [ 0.000000] [ 0.000000] CPU: 0 PID: 0 Comm: swapper Tainted: G B 4.4.108-g55b3b8c #7 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 72d0048a83d7530a ffffffff84207c40 ffffffff81d02e5d [ 0.000000] ffffffff83fb34b5 ffffffff84207d18 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d08 ffffffff81417caa 0000000041b58ab3 [ 0.000000] Call Trace: [ 0.000000] [] dump_stack+0xc1/0x124 [ 0.000000] [] panic+0x1aa/0x388 [ 0.000000] [] ? percpu_up_read.constprop.45+0xe1/0xe1 [ 0.000000] [] kasan_end_report+0x50/0x50 [ 0.000000] [] kasan_report+0x15c/0x370 [ 0.000000] [] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] free_all_bootmem+0xf2/0x24d [ 0.000000] [] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [] ? dmar_table_detect+0x60/0x60 [ 0.000000] [] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [] mem_init+0x13/0x74 [ 0.000000] [] start_kernel+0x31d/0x6e9 [ 0.000000] [] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [] x86_64_start_kernel+0x140/0x163 [ 0.000000] Rebooting in 86400 seconds.. [ 0.000000] ACPI MEMORY or I/O RESET_REG. SeaBIOS (version 1.8.2-20171012_061934-google) Total RAM Size = 0x00000001e0000000 = 7680 MiB CPUs found: 2 Max CPUs supported: 2 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 0x000f3050: PCHS=0/0/0 translation=lba LCHS=520/128/63 s=4194304 Booting from Hard Disk 0... early console in decompress_kernel input_data: 0x00000000039be26e input_len: 0x0000000001424e03 output: 0x0000000001000000 output_len: 0x0000000003dcea40 run_size: 0x0000000005504000 Decompressing Linux... Parsing ELF... done. Booting the kernel. [ 0.000000] Initializing cgroup subsys cpuset [ 0.000000] Initializing cgroup subsys cpu [ 0.000000] Initializing cgroup subsys cpuacct [ 0.000000] Initializing cgroup subsys schedtune [ 0.000000] Linux version 4.4.108-g55b3b8c (syzkaller@ci) (gcc version 7.1.1 20170620 (GCC) ) #7 SMP PREEMPT Fri Dec 29 21:50:38 UTC 2017 [ 0.000000] Command line: BOOT_IMAGE=/vmlinuz root=/dev/sda1 console=ttyS0 earlyprintk=serial vsyscall=native rodata=n ftrace_dump_on_oops=orig_cpu oops=panic panic_on_warn=1 nmi_watchdog=panic panic=86400 workqueue.watchdog_thresh=120 [ 0.000000] KERNEL supported cpus: [ 0.000000] Intel GenuineIntel [ 0.000000] AMD AuthenticAMD [ 0.000000] Centaur CentaurHauls [ 0.000000] x86/fpu: xstate_offset[2]: 576, xstate_sizes[2]: 256 [ 0.000000] x86/fpu: Supporting XSAVE feature 0x01: 'x87 floating point registers' [ 0.000000] x86/fpu: Supporting XSAVE feature 0x02: 'SSE registers' [ 0.000000] x86/fpu: Supporting XSAVE feature 0x04: 'AVX registers' [ 0.000000] x86/fpu: Enabled xstate features 0x7, context size is 832 bytes, using 'standard' format. [ 0.000000] x86/fpu: Using 'eager' FPU context switches. [ 0.000000] e820: BIOS-provided physical RAM map: [ 0.000000] BIOS-e820: [mem 0x0000000000000000-0x000000000009fbff] usable [ 0.000000] BIOS-e820: [mem 0x000000000009fc00-0x000000000009ffff] reserved [ 0.000000] BIOS-e820: [mem 0x00000000000f0000-0x00000000000fffff] reserved [ 0.000000] BIOS-e820: [mem 0x0000000000100000-0x00000000bfffcfff] usable [ 0.000000] BIOS-e820: [mem 0x00000000bfffd000-0x00000000bfffffff] reserved [ 0.000000] BIOS-e820: [mem 0x00000000fffbc000-0x00000000ffffffff] reserved [ 0.000000] BIOS-e820: [mem 0x0000000100000000-0x000000021fffffff] usable [ 0.000000] bootconsole [earlyser0] enabled [ 0.000000] NX (Execute Disable) protection: active [ 0.000000] SMBIOS 2.4 present. [ 0.000000] Hypervisor detected: KVM [ 0.000000] e820: last_pfn = 0x220000 max_arch_pfn = 0x400000000 [ 0.000000] x86/PAT: Configuration [0-7]: WB WC UC- UC WB WC UC- WT [ 0.000000] e820: last_pfn = 0xbfffd max_arch_pfn = 0x400000000 [ 0.000000] found SMP MP-table at [mem 0x000f32c0-0x000f32cf] mapped at [ffff8800000f32c0] [ 0.000000] Scanning 1 areas for low memory corruption [ 0.000000] Using GB pages for direct mapping [ 0.000000] ACPI: Early table checksum verification disabled [ 0.000000] ACPI: RSDP 0x00000000000F3090 000014 (v00 Google) [ 0.000000] ACPI: RSDT 0x00000000BFFFDC70 000034 (v01 Google GOOGRSDT 00000001 GOOG 00000001) [ 0.000000] ACPI: FACP 0x00000000BFFFFF00 0000F4 (v02 Google GOOGFACP 00000001 GOOG 00000001) [ 0.000000] ACPI: DSDT 0x00000000BFFFDCB0 0017B2 (v01 Google GOOGDSDT 00000001 GOOG 00000001) [ 0.000000] ACPI: FACS 0x00000000BFFFFEC0 000040 [ 0.000000] ACPI: FACS 0x00000000BFFFFEC0 000040 [ 0.000000] ACPI: SSDT 0x00000000BFFFF590 000930 (v01 Google GOOGSSDT 00000001 GOOG 00000001) [ 0.000000] ACPI: APIC 0x00000000BFFFF4A0 000076 (v01 Google GOOGAPIC 00000001 GOOG 00000001) [ 0.000000] ACPI: WAET 0x00000000BFFFF470 000028 (v01 Google GOOGWAET 00000001 GOOG 00000001) [ 0.000000] kvm-clock: Using msrs 4b564d01 and 4b564d00 [ 0.000000] kvm-clock: cpu 0, msr 2:1fffd001, primary cpu clock [ 0.000000] kvm-clock: using sched offset of 1246870452 cycles [ 0.000000] clocksource: kvm-clock: mask: 0xffffffffffffffff max_cycles: 0x1cd42e4dffb, max_idle_ns: 881590591483 ns [ 0.000000] Zone ranges: [ 0.000000] DMA [mem 0x0000000000001000-0x0000000000ffffff] [ 0.000000] DMA32 [mem 0x0000000001000000-0x00000000ffffffff] [ 0.000000] Normal [mem 0x0000000100000000-0x000000021fffffff] [ 0.000000] Movable zone start for each node [ 0.000000] Early memory node ranges [ 0.000000] node 0: [mem 0x0000000000001000-0x000000000009efff] [ 0.000000] node 0: [mem 0x0000000000100000-0x00000000bfffcfff] [ 0.000000] node 0: [mem 0x0000000100000000-0x000000021fffffff] [ 0.000000] Initmem setup node 0 [mem 0x0000000000001000-0x000000021fffffff] [ 0.000000] kasan: KernelAddressSanitizer initialized [ 0.000000] ACPI: PM-Timer IO Port: 0xb008 [ 0.000000] ACPI: LAPIC_NMI (acpi_id[0xff] dfl dfl lint[0x1]) [ 0.000000] IOAPIC[0]: apic_id 0, version 17, address 0xfec00000, GSI 0-23 [ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 5 global_irq 5 high level) [ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 9 global_irq 9 high level) [ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 10 global_irq 10 high level) [ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 11 global_irq 11 high level) [ 0.000000] Using ACPI (MADT) for SMP configuration information [ 0.000000] smpboot: Allowing 2 CPUs, 0 hotplug CPUs [ 0.000000] PM: Registered nosave memory: [mem 0x00000000-0x00000fff] [ 0.000000] PM: Registered nosave memory: [mem 0x0009f000-0x0009ffff] [ 0.000000] PM: Registered nosave memory: [mem 0x000a0000-0x000effff] [ 0.000000] PM: Registered nosave memory: [mem 0x000f0000-0x000fffff] [ 0.000000] PM: Registered nosave memory: [mem 0xbfffd000-0xbfffffff] [ 0.000000] PM: Registered nosave memory: [mem 0xc0000000-0xfffbbfff] [ 0.000000] PM: Registered nosave memory: [mem 0xfffbc000-0xffffffff] [ 0.000000] e820: [mem 0xc0000000-0xfffbbfff] available for PCI devices [ 0.000000] Booting paravirtualized kernel on KVM [ 0.000000] clocksource: refined-jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604462750000 ns [ 0.000000] setup_percpu: NR_CPUS:64 nr_cpumask_bits:64 nr_cpu_ids:2 nr_node_ids:1 [ 0.000000] PERCPU: Embedded 42 pages/cpu @ffff8801db200000 s132680 r8192 d31160 u1048576 [ 0.000000] Built 1 zonelists in Zone order, mobility grouping on. Total pages: 1935238 [ 0.000000] Kernel command line: BOOT_IMAGE=/vmlinuz root=/dev/sda1 console=ttyS0 earlyprintk=serial vsyscall=native rodata=n ftrace_dump_on_oops=orig_cpu oops=panic panic_on_warn=1 nmi_watchdog=panic panic=86400 workqueue.watchdog_thresh=120 [ 0.000000] PID hash table entries: 4096 (order: 3, 32768 bytes) [ 0.000000] Dentry cache hash table entries: 1048576 (order: 11, 8388608 bytes) [ 0.000000] Inode-cache hash table entries: 524288 (order: 10, 4194304 bytes) [ 0.000000] ================================================================== [ 0.000000] BUG: KASAN: stack-out-of-bounds in reserve_bootmem_region+0xdf/0x130 [ 0.000000] Write of size 8 at addr ffffea0000047ce0 by task swapper/0 [ 0.000000] [ 0.000000] CPU: 0 PID: 0 Comm: swapper Not tainted 4.4.108-g55b3b8c #7 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 6f26c2f4802e1174 ffffffff84207ce8 ffffffff81d02e5d [ 0.000000] ffffea0000047ce0 ffffea0000047ce0 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d20 ffffffff814fb329 ffffea0000047ce0 [ 0.000000] Call Trace: [ 0.000000] [] dump_stack+0xc1/0x124 [ 0.000000] [] print_address_description+0x189/0x260 [ 0.000000] [] kasan_report+0x285/0x370 [ 0.000000] [] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] free_all_bootmem+0xf2/0x24d [ 0.000000] [] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [] ? dmar_table_detect+0x60/0x60 [ 0.000000] [] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [] mem_init+0x13/0x74 [ 0.000000] [] start_kernel+0x31d/0x6e9 [ 0.000000] [] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [] x86_64_start_kernel+0x140/0x163 [ 0.000000] [ 0.000000] [ 0.000000] Memory state around the buggy address: [ 0.000000] ffffea0000047b80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ffffea0000047c00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] >ffffea0000047c80: 00 00 00 00 00 00 f1 f1 f1 f1 00 00 f2 f2 00 00 [ 0.000000] ^ [ 0.000000] ffffea0000047d00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ffffea0000047d80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ================================================================== [ 0.000000] Disabling lock debugging due to kernel taint [ 0.000000] Kernel panic - not syncing: panic_on_warn set ... [ 0.000000] [ 0.000000] CPU: 0 PID: 0 Comm: swapper Tainted: G B 4.4.108-g55b3b8c #7 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 6f26c2f4802e1174 ffffffff84207c40 ffffffff81d02e5d [ 0.000000] ffffffff83fb34b5 ffffffff84207d18 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d08 ffffffff81417caa 0000000041b58ab3 [ 0.000000] Call Trace: [ 0.000000] [] dump_stack+0xc1/0x124 [ 0.000000] [] panic+0x1aa/0x388 [ 0.000000] [] ? percpu_up_read.constprop.45+0xe1/0xe1 [ 0.000000] [] kasan_end_report+0x50/0x50 [ 0.000000] [] kasan_report+0x15c/0x370 [ 0.000000] [] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] free_all_bootmem+0xf2/0x24d [ 0.000000] [] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [] ? dmar_table_detect+0x60/0x60 [ 0.000000] [] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [] mem_init+0x13/0x74 [ 0.000000] [] start_kernel+0x31d/0x6e9 [ 0.000000] [] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [] x86_64_start_kernel+0x140/0x163 [ 0.000000] Rebooting in 86400 seconds.. [ 0.000000] ACPI MEMORY or I/O RESET_REG. SeaBIOS (version 1.8.2-20171012_061934-google) Total RAM Size = 0x00000001e0000000 = 7680 MiB CPUs found: 2 Max CPUs supported: 2 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 0x000f3050: PCHS=0/0/0 translation=lba LCHS=520/128/63 s=4194304 Booting from Hard Disk 0... early console in decompress_kernel input_data: 0x00000000039be26e input_len: 0x0000000001424e03 output: 0x0000000001000000 output_len: 0x0000000003dcea40 run_size: 0x0000000005504000 Decompressing Linux... Parsing ELF... done. Booting the kernel. [ 0.000000] Initializing cgroup subsys cpuset [ 0.000000] Initializing cgroup subsys cpu [ 0.000000] Initializing cgroup subsys cpuacct [ 0.000000] Initializing cgroup subsys schedtune [ 0.000000] Linux version 4.4.108-g55b3b8c (syzkaller@ci) (gcc version 7.1.1 20170620 (GCC) ) #7 SMP PREEMPT Fri Dec 29 21:50:38 UTC 2017 [ 0.000000] Command line: BOOT_IMAGE=/vmlinuz root=/dev/sda1 console=ttyS0 earlyprintk=serial vsyscall=native rodata=n ftrace_dump_on_oops=orig_cpu oops=panic panic_on_warn=1 nmi_watchdog=panic panic=86400 workqueue.watchdog_thresh=120 [ 0.000000] KERNEL supported cpus: [ 0.000000] Intel GenuineIntel [ 0.000000] AMD AuthenticAMD [ 0.000000] Centaur CentaurHauls [ 0.000000] x86/fpu: xstate_offset[2]: 576, xstate_sizes[2]: 256 [ 0.000000] x86/fpu: Supporting XSAVE feature 0x01: 'x87 floating point registers' [ 0.000000] x86/fpu: Supporting XSAVE feature 0x02: 'SSE registers' [ 0.000000] x86/fpu: Supporting XSAVE feature 0x04: 'AVX registers' [ 0.000000] x86/fpu: Enabled xstate features 0x7, context size is 832 bytes, using 'standard' format. [ 0.000000] x86/fpu: Using 'eager' FPU context switches. [ 0.000000] e820: BIOS-provided physical RAM map: [ 0.000000] BIOS-e820: [mem 0x0000000000000000-0x000000000009fbff] usable [ 0.000000] BIOS-e820: [mem 0x000000000009fc00-0x000000000009ffff] reserved [ 0.000000] BIOS-e820: [mem 0x00000000000f0000-0x00000000000fffff] reserved [ 0.000000] BIOS-e820: [mem 0x0000000000100000-0x00000000bfffcfff] usable [ 0.000000] BIOS-e820: [mem 0x00000000bfffd000-0x00000000bfffffff] reserved [ 0.000000] BIOS-e820: [mem 0x00000000fffbc000-0x00000000ffffffff] reserved [ 0.000000] BIOS-e820: [mem 0x0000000100000000-0x000000021fffffff] usable [ 0.000000] bootconsole [earlyser0] enabled [ 0.000000] NX (Execute Disable) protection: active [ 0.000000] SMBIOS 2.4 present. [ 0.000000] Hypervisor detected: KVM [ 0.000000] e820: last_pfn = 0x220000 max_arch_pfn = 0x400000000 [ 0.000000] x86/PAT: Configuration [0-7]: WB WC UC- UC WB WC UC- WT [ 0.000000] e820: last_pfn = 0xbfffd max_arch_pfn = 0x400000000 [ 0.000000] found SMP MP-table at [mem 0x000f32c0-0x000f32cf] mapped at [ffff8800000f32c0] [ 0.000000] Scanning 1 areas for low memory corruption [ 0.000000] Using GB pages for direct mapping [ 0.000000] ACPI: Early table checksum verification disabled [ 0.000000] ACPI: RSDP 0x00000000000F3090 000014 (v00 Google) [ 0.000000] ACPI: RSDT 0x00000000BFFFDC70 000034 (v01 Google GOOGRSDT 00000001 GOOG 00000001) [ 0.000000] ACPI: FACP 0x00000000BFFFFF00 0000F4 (v02 Google GOOGFACP 00000001 GOOG 00000001) [ 0.000000] ACPI: DSDT 0x00000000BFFFDCB0 0017B2 (v01 Google GOOGDSDT 00000001 GOOG 00000001) [ 0.000000] ACPI: FACS 0x00000000BFFFFEC0 000040 [ 0.000000] ACPI: FACS 0x00000000BFFFFEC0 000040 [ 0.000000] ACPI: SSDT 0x00000000BFFFF590 000930 (v01 Google GOOGSSDT 00000001 GOOG 00000001) [ 0.000000] ACPI: APIC 0x00000000BFFFF4A0 000076 (v01 Google GOOGAPIC 00000001 GOOG 00000001) [ 0.000000] ACPI: WAET 0x00000000BFFFF470 000028 (v01 Google GOOGWAET 00000001 GOOG 00000001) [ 0.000000] kvm-clock: Using msrs 4b564d01 and 4b564d00 [ 0.000000] kvm-clock: cpu 0, msr 2:1fffd001, primary cpu clock [ 0.000000] kvm-clock: using sched offset of 1320613648 cycles [ 0.000000] clocksource: kvm-clock: mask: 0xffffffffffffffff max_cycles: 0x1cd42e4dffb, max_idle_ns: 881590591483 ns [ 0.000000] Zone ranges: [ 0.000000] DMA [mem 0x0000000000001000-0x0000000000ffffff] [ 0.000000] DMA32 [mem 0x0000000001000000-0x00000000ffffffff] [ 0.000000] Normal [mem 0x0000000100000000-0x000000021fffffff] [ 0.000000] Movable zone start for each node [ 0.000000] Early memory node ranges [ 0.000000] node 0: [mem 0x0000000000001000-0x000000000009efff] [ 0.000000] node 0: [mem 0x0000000000100000-0x00000000bfffcfff] [ 0.000000] node 0: [mem 0x0000000100000000-0x000000021fffffff] [ 0.000000] Initmem setup node 0 [mem 0x0000000000001000-0x000000021fffffff] [ 0.000000] kasan: KernelAddressSanitizer initialized [ 0.000000] ACPI: PM-Timer IO Port: 0xb008 [ 0.000000] ACPI: LAPIC_NMI (acpi_id[0xff] dfl dfl lint[0x1]) [ 0.000000] IOAPIC[0]: apic_id 0, version 17, address 0xfec00000, GSI 0-23 [ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 5 global_irq 5 high level) [ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 9 global_irq 9 high level) [ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 10 global_irq 10 high level) [ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 11 global_irq 11 high level) [ 0.000000] Using ACPI (MADT) for SMP configuration information [ 0.000000] smpboot: Allowing 2 CPUs, 0 hotplug CPUs [ 0.000000] PM: Registered nosave memory: [mem 0x00000000-0x00000fff] [ 0.000000] PM: Registered nosave memory: [mem 0x0009f000-0x0009ffff] [ 0.000000] PM: Registered nosave memory: [mem 0x000a0000-0x000effff] [ 0.000000] PM: Registered nosave memory: [mem 0x000f0000-0x000fffff] [ 0.000000] PM: Registered nosave memory: [mem 0xbfffd000-0xbfffffff] [ 0.000000] PM: Registered nosave memory: [mem 0xc0000000-0xfffbbfff] [ 0.000000] PM: Registered nosave memory: [mem 0xfffbc000-0xffffffff] [ 0.000000] e820: [mem 0xc0000000-0xfffbbfff] available for PCI devices [ 0.000000] Booting paravirtualized kernel on KVM [ 0.000000] clocksource: refined-jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604462750000 ns [ 0.000000] setup_percpu: NR_CPUS:64 nr_cpumask_bits:64 nr_cpu_ids:2 nr_node_ids:1 [ 0.000000] PERCPU: Embedded 42 pages/cpu @ffff8801db200000 s132680 r8192 d31160 u1048576 [ 0.000000] Built 1 zonelists in Zone order, mobility grouping on. Total pages: 1935238 [ 0.000000] Kernel command line: BOOT_IMAGE=/vmlinuz root=/dev/sda1 console=ttyS0 earlyprintk=serial vsyscall=native rodata=n ftrace_dump_on_oops=orig_cpu oops=panic panic_on_warn=1 nmi_watchdog=panic panic=86400 workqueue.watchdog_thresh=120 [ 0.000000] PID hash table entries: 4096 (order: 3, 32768 bytes) [ 0.000000] Dentry cache hash table entries: 1048576 (order: 11, 8388608 bytes) [ 0.000000] Inode-cache hash table entries: 524288 (order: 10, 4194304 bytes) [ 0.000000] ================================================================== [ 0.000000] BUG: KASAN: stack-out-of-bounds in reserve_bootmem_region+0xdf/0x130 [ 0.000000] Write of size 8 at addr ffffea0000047ce0 by task swapper/0 [ 0.000000] [ 0.000000] CPU: 0 PID: 0 Comm: swapper Not tainted 4.4.108-g55b3b8c #7 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 794632968a4d8116 ffffffff84207ce8 ffffffff81d02e5d [ 0.000000] ffffea0000047ce0 ffffea0000047ce0 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d20 ffffffff814fb329 ffffea0000047ce0 [ 0.000000] Call Trace: [ 0.000000] [] dump_stack+0xc1/0x124 [ 0.000000] [] print_address_description+0x189/0x260 [ 0.000000] [] kasan_report+0x285/0x370 [ 0.000000] [] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] free_all_bootmem+0xf2/0x24d [ 0.000000] [] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [] ? dmar_table_detect+0x60/0x60 [ 0.000000] [] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [] mem_init+0x13/0x74 [ 0.000000] [] start_kernel+0x31d/0x6e9 [ 0.000000] [] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [] x86_64_start_kernel+0x140/0x163 [ 0.000000] [ 0.000000] [ 0.000000] Memory state around the buggy address: [ 0.000000] ffffea0000047b80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ffffea0000047c00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] >ffffea0000047c80: 00 00 00 00 00 00 f1 f1 f1 f1 00 00 f2 f2 00 00 [ 0.000000] ^ [ 0.000000] ffffea0000047d00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ffffea0000047d80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ================================================================== [ 0.000000] Disabling lock debugging due to kernel taint [ 0.000000] Kernel panic - not syncing: panic_on_warn set ... [ 0.000000] [ 0.000000] CPU: 0 PID: 0 Comm: swapper Tainted: G B 4.4.108-g55b3b8c #7 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 794632968a4d8116 ffffffff84207c40 ffffffff81d02e5d [ 0.000000] ffffffff83fb34b5 ffffffff84207d18 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d08 ffffffff81417caa 0000000041b58ab3 [ 0.000000] Call Trace: [ 0.000000] [] dump_stack+0xc1/0x124 [ 0.000000] [] panic+0x1aa/0x388 [ 0.000000] [] ? percpu_up_read.constprop.45+0xe1/0xe1 [ 0.000000] [] kasan_end_report+0x50/0x50 [ 0.000000] [] kasan_report+0x15c/0x370 [ 0.000000] [] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] free_all_bootmem+0xf2/0x24d [ 0.000000] [] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [] ? dmar_table_detect+0x60/0x60 [ 0.000000] [] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [] mem_init+0x13/0x74 [ 0.000000] [] start_kernel+0x31d/0x6e9 [ 0.000000] [] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [] x86_64_start_kernel+0x140/0x163 [ 0.000000] Rebooting in 86400 seconds.. [ 0.000000] ACPI MEMORY or I/O RESET_REG. SeaBIOS (version 1.8.2-20171012_061934-google) Total RAM Size = 0x00000001e0000000 = 7680 MiB CPUs found: 2 Max CPUs supported: 2 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 0x000f3050: PCHS=0/0/0 translation=lba LCHS=520/128/63 s=4194304 Booting from Hard Disk 0... early console in decompress_kernel input_data: 0x00000000039be26e input_len: 0x0000000001424e03 output: 0x0000000001000000 output_len: 0x0000000003dcea40 run_size: 0x0000000005504000 Decompressing Linux... Parsing ELF... done. Booting the kernel. [ 0.000000] Initializing cgroup subsys cpuset [ 0.000000] Initializing cgroup subsys cpu [ 0.000000] Initializing cgroup subsys cpuacct [ 0.000000] Initializing cgroup subsys schedtune [ 0.000000] Linux version 4.4.108-g55b3b8c (syzkaller@ci) (gcc version 7.1.1 20170620 (GCC) ) #7 SMP PREEMPT Fri Dec 29 21:50:38 UTC 2017 [ 0.000000] Command line: BOOT_IMAGE=/vmlinuz root=/dev/sda1 console=ttyS0 earlyprintk=serial vsyscall=native rodata=n ftrace_dump_on_oops=orig_cpu oops=panic panic_on_warn=1 nmi_watchdog=panic panic=86400 workqueue.watchdog_thresh=120 [ 0.000000] KERNEL supported cpus: [ 0.000000] Intel GenuineIntel [ 0.000000] AMD AuthenticAMD [ 0.000000] Centaur CentaurHauls [ 0.000000] x86/fpu: xstate_offset[2]: 576, xstate_sizes[2]: 256 [ 0.000000] x86/fpu: Supporting XSAVE feature 0x01: 'x87 floating point registers' [ 0.000000] x86/fpu: Supporting XSAVE feature 0x02: 'SSE registers' [ 0.000000] x86/fpu: Supporting XSAVE feature 0x04: 'AVX registers' [ 0.000000] x86/fpu: Enabled xstate features 0x7, context size is 832 bytes, using 'standard' format. [ 0.000000] x86/fpu: Using 'eager' FPU context switches. [ 0.000000] e820: BIOS-provided physical RAM map: [ 0.000000] BIOS-e820: [mem 0x0000000000000000-0x000000000009fbff] usable [ 0.000000] BIOS-e820: [mem 0x000000000009fc00-0x000000000009ffff] reserved [ 0.000000] BIOS-e820: [mem 0x00000000000f0000-0x00000000000fffff] reserved [ 0.000000] BIOS-e820: [mem 0x0000000000100000-0x00000000bfffcfff] usable [ 0.000000] BIOS-e820: [mem 0x00000000bfffd000-0x00000000bfffffff] reserved [ 0.000000] BIOS-e820: [mem 0x00000000fffbc000-0x00000000ffffffff] reserved [ 0.000000] BIOS-e820: [mem 0x0000000100000000-0x000000021fffffff] usable [ 0.000000] bootconsole [earlyser0] enabled [ 0.000000] NX (Execute Disable) protection: active [ 0.000000] SMBIOS 2.4 present. [ 0.000000] Hypervisor detected: KVM [ 0.000000] e820: last_pfn = 0x220000 max_arch_pfn = 0x400000000 [ 0.000000] x86/PAT: Configuration [0-7]: WB WC UC- UC WB WC UC- WT [ 0.000000] e820: last_pfn = 0xbfffd max_arch_pfn = 0x400000000 [ 0.000000] found SMP MP-table at [mem 0x000f32c0-0x000f32cf] mapped at [ffff8800000f32c0] [ 0.000000] Scanning 1 areas for low memory corruption [ 0.000000] Using GB pages for direct mapping [ 0.000000] ACPI: Early table checksum verification disabled [ 0.000000] ACPI: RSDP 0x00000000000F3090 000014 (v00 Google) [ 0.000000] ACPI: RSDT 0x00000000BFFFDC70 000034 (v01 Google GOOGRSDT 00000001 GOOG 00000001) [ 0.000000] ACPI: FACP 0x00000000BFFFFF00 0000F4 (v02 Google GOOGFACP 00000001 GOOG 00000001) [ 0.000000] ACPI: DSDT 0x00000000BFFFDCB0 0017B2 (v01 Google GOOGDSDT 00000001 GOOG 00000001) [ 0.000000] ACPI: FACS 0x00000000BFFFFEC0 000040 [ 0.000000] ACPI: FACS 0x00000000BFFFFEC0 000040 [ 0.000000] ACPI: SSDT 0x00000000BFFFF590 000930 (v01 Google GOOGSSDT 00000001 GOOG 00000001) [ 0.000000] ACPI: APIC 0x00000000BFFFF4A0 000076 (v01 Google GOOGAPIC 00000001 GOOG 00000001) [ 0.000000] ACPI: WAET 0x00000000BFFFF470 000028 (v01 Google GOOGWAET 00000001 GOOG 00000001) [ 0.000000] kvm-clock: Using msrs 4b564d01 and 4b564d00 [ 0.000000] kvm-clock: cpu 0, msr 2:1fffd001, primary cpu clock [ 0.000000] kvm-clock: using sched offset of 1337824155 cycles [ 0.000000] clocksource: kvm-clock: mask: 0xffffffffffffffff max_cycles: 0x1cd42e4dffb, max_idle_ns: 881590591483 ns [ 0.000000] Zone ranges: [ 0.000000] DMA [mem 0x0000000000001000-0x0000000000ffffff] [ 0.000000] DMA32 [mem 0x0000000001000000-0x00000000ffffffff] [ 0.000000] Normal [mem 0x0000000100000000-0x000000021fffffff] [ 0.000000] Movable zone start for each node [ 0.000000] Early memory node ranges [ 0.000000] node 0: [mem 0x0000000000001000-0x000000000009efff] [ 0.000000] node 0: [mem 0x0000000000100000-0x00000000bfffcfff] [ 0.000000] node 0: [mem 0x0000000100000000-0x000000021fffffff] [ 0.000000] Initmem setup node 0 [mem 0x0000000000001000-0x000000021fffffff] [ 0.000000] kasan: KernelAddressSanitizer initialized [ 0.000000] ACPI: PM-Timer IO Port: 0xb008 [ 0.000000] ACPI: LAPIC_NMI (acpi_id[0xff] dfl dfl lint[0x1]) [ 0.000000] IOAPIC[0]: apic_id 0, version 17, address 0xfec00000, GSI 0-23 [ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 5 global_irq 5 high level) [ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 9 global_irq 9 high level) [ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 10 global_irq 10 high level) [ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 11 global_irq 11 high level) [ 0.000000] Using ACPI (MADT) for SMP configuration information [ 0.000000] smpboot: Allowing 2 CPUs, 0 hotplug CPUs [ 0.000000] PM: Registered nosave memory: [mem 0x00000000-0x00000fff] [ 0.000000] PM: Registered nosave memory: [mem 0x0009f000-0x0009ffff] [ 0.000000] PM: Registered nosave memory: [mem 0x000a0000-0x000effff] [ 0.000000] PM: Registered nosave memory: [mem 0x000f0000-0x000fffff] [ 0.000000] PM: Registered nosave memory: [mem 0xbfffd000-0xbfffffff] [ 0.000000] PM: Registered nosave memory: [mem 0xc0000000-0xfffbbfff] [ 0.000000] PM: Registered nosave memory: [mem 0xfffbc000-0xffffffff] [ 0.000000] e820: [mem 0xc0000000-0xfffbbfff] available for PCI devices [ 0.000000] Booting paravirtualized kernel on KVM [ 0.000000] clocksource: refined-jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604462750000 ns [ 0.000000] setup_percpu: NR_CPUS:64 nr_cpumask_bits:64 nr_cpu_ids:2 nr_node_ids:1 [ 0.000000] PERCPU: Embedded 42 pages/cpu @ffff8801db200000 s132680 r8192 d31160 u1048576 [ 0.000000] Built 1 zonelists in Zone order, mobility grouping on. Total pages: 1935238 [ 0.000000] Kernel command line: BOOT_IMAGE=/vmlinuz root=/dev/sda1 console=ttyS0 earlyprintk=serial vsyscall=native rodata=n ftrace_dump_on_oops=orig_cpu oops=panic panic_on_warn=1 nmi_watchdog=panic panic=86400 workqueue.watchdog_thresh=120 [ 0.000000] PID hash table entries: 4096 (order: 3, 32768 bytes) [ 0.000000] Dentry cache hash table entries: 1048576 (order: 11, 8388608 bytes) [ 0.000000] Inode-cache hash table entries: 524288 (order: 10, 4194304 bytes) [ 0.000000] ================================================================== [ 0.000000] BUG: KASAN: stack-out-of-bounds in reserve_bootmem_region+0xdf/0x130 [ 0.000000] Write of size 8 at addr ffffea0000047ce0 by task swapper/0 [ 0.000000] [ 0.000000] CPU: 0 PID: 0 Comm: swapper Not tainted 4.4.108-g55b3b8c #7 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 7b97c64a8c9f14ca ffffffff84207ce8 ffffffff81d02e5d [ 0.000000] ffffea0000047ce0 ffffea0000047ce0 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d20 ffffffff814fb329 ffffea0000047ce0 [ 0.000000] Call Trace: [ 0.000000] [] dump_stack+0xc1/0x124 [ 0.000000] [] print_address_description+0x189/0x260 [ 0.000000] [] kasan_report+0x285/0x370 [ 0.000000] [] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] free_all_bootmem+0xf2/0x24d [ 0.000000] [] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [] ? dmar_table_detect+0x60/0x60 [ 0.000000] [] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [] mem_init+0x13/0x74 [ 0.000000] [] start_kernel+0x31d/0x6e9 [ 0.000000] [] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [] x86_64_start_kernel+0x140/0x163 [ 0.000000] [ 0.000000] [ 0.000000] Memory state around the buggy address: [ 0.000000] ffffea0000047b80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ffffea0000047c00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] >ffffea0000047c80: 00 00 00 00 00 00 f1 f1 f1 f1 00 00 f2 f2 00 00 [ 0.000000] ^ [ 0.000000] ffffea0000047d00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ffffea0000047d80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ================================================================== [ 0.000000] Disabling lock debugging due to kernel taint [ 0.000000] Kernel panic - not syncing: panic_on_warn set ... [ 0.000000] [ 0.000000] CPU: 0 PID: 0 Comm: swapper Tainted: G B 4.4.108-g55b3b8c #7 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 7b97c64a8c9f14ca ffffffff84207c40 ffffffff81d02e5d [ 0.000000] ffffffff83fb34b5 ffffffff84207d18 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d08 ffffffff81417caa 0000000041b58ab3 [ 0.000000] Call Trace: [ 0.000000] [] dump_stack+0xc1/0x124 [ 0.000000] [] panic+0x1aa/0x388 [ 0.000000] [] ? percpu_up_read.constprop.45+0xe1/0xe1 [ 0.000000] [] kasan_end_report+0x50/0x50 [ 0.000000] [] kasan_report+0x15c/0x370 [ 0.000000] [] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] free_all_bootmem+0xf2/0x24d [ 0.000000] [] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [] ? dmar_table_detect+0x60/0x60 [ 0.000000] [] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [] mem_init+0x13/0x74 [ 0.000000] [] start_kernel+0x31d/0x6e9 [ 0.000000] [] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [] x86_64_start_kernel+0x140/0x163 [ 0.000000] Rebooting in 86400 seconds.. [ 0.000000] ACPI MEMORY or I/O RESET_REG. SeaBIOS (version 1.8.2-20171012_061934-google) Total RAM Size = 0x00000001e0000000 = 7680 MiB CPUs found: 2 Max CPUs supported: 2 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 0x000f3050: PCHS=0/0/0 translation=lba LCHS=520/128/63 s=4194304 Booting from Hard Disk 0... early console in decompress_kernel input_data: 0x00000000039be26e input_len: 0x0000000001424e03 output: 0x0000000001000000 output_len: 0x0000000003dcea40 run_size: 0x0000000005504000 Decompressing Linux... Parsing ELF... done. Booting the kernel. [ 0.000000] Initializing cgroup subsys cpuset [ 0.000000] Initializing cgroup subsys cpu [ 0.000000] Initializing cgroup subsys cpuacct [ 0.000000] Initializing cgroup subsys schedtune [ 0.000000] Linux version 4.4.108-g55b3b8c (syzkaller@ci) (gcc version 7.1.1 20170620 (GCC) ) #7 SMP PREEMPT Fri Dec 29 21:50:38 UTC 2017 [ 0.000000] Command line: BOOT_IMAGE=/vmlinuz root=/dev/sda1 console=ttyS0 earlyprintk=serial vsyscall=native rodata=n ftrace_dump_on_oops=orig_cpu oops=panic panic_on_warn=1 nmi_watchdog=panic panic=86400 workqueue.watchdog_thresh=120 [ 0.000000] KERNEL supported cpus: [ 0.000000] Intel GenuineIntel [ 0.000000] AMD AuthenticAMD [ 0.000000] Centaur CentaurHauls [ 0.000000] x86/fpu: xstate_offset[2]: 576, xstate_sizes[2]: 256 [ 0.000000] x86/fpu: Supporting XSAVE feature 0x01: 'x87 floating point registers' [ 0.000000] x86/fpu: Supporting XSAVE feature 0x02: 'SSE registers' [ 0.000000] x86/fpu: Supporting XSAVE feature 0x04: 'AVX registers' [ 0.000000] x86/fpu: Enabled xstate features 0x7, context size is 832 bytes, using 'standard' format. [ 0.000000] x86/fpu: Using 'eager' FPU context switches. [ 0.000000] e820: BIOS-provided physical RAM map: [ 0.000000] BIOS-e820: [mem 0x0000000000000000-0x000000000009fbff] usable [ 0.000000] BIOS-e820: [mem 0x000000000009fc00-0x000000000009ffff] reserved [ 0.000000] BIOS-e820: [mem 0x00000000000f0000-0x00000000000fffff] reserved [ 0.000000] BIOS-e820: [mem 0x0000000000100000-0x00000000bfffcfff] usable [ 0.000000] BIOS-e820: [mem 0x00000000bfffd000-0x00000000bfffffff] reserved [ 0.000000] BIOS-e820: [mem 0x00000000fffbc000-0x00000000ffffffff] reserved [ 0.000000] BIOS-e820: [mem 0x0000000100000000-0x000000021fffffff] usable [ 0.000000] bootconsole [earlyser0] enabled [ 0.000000] NX (Execute Disable) protection: active [ 0.000000] SMBIOS 2.4 present. [ 0.000000] Hypervisor detected: KVM [ 0.000000] e820: last_pfn = 0x220000 max_arch_pfn = 0x400000000 [ 0.000000] x86/PAT: Configuration [0-7]: WB WC UC- UC WB WC UC- WT [ 0.000000] e820: last_pfn = 0xbfffd max_arch_pfn = 0x400000000 [ 0.000000] found SMP MP-table at [mem 0x000f32c0-0x000f32cf] mapped at [ffff8800000f32c0] [ 0.000000] Scanning 1 areas for low memory corruption [ 0.000000] Using GB pages for direct mapping [ 0.000000] ACPI: Early table checksum verification disabled [ 0.000000] ACPI: RSDP 0x00000000000F3090 000014 (v00 Google) [ 0.000000] ACPI: RSDT 0x00000000BFFFDC70 000034 (v01 Google GOOGRSDT 00000001 GOOG 00000001) [ 0.000000] ACPI: FACP 0x00000000BFFFFF00 0000F4 (v02 Google GOOGFACP 00000001 GOOG 00000001) [ 0.000000] ACPI: DSDT 0x00000000BFFFDCB0 0017B2 (v01 Google GOOGDSDT 00000001 GOOG 00000001) [ 0.000000] ACPI: FACS 0x00000000BFFFFEC0 000040 [ 0.000000] ACPI: FACS 0x00000000BFFFFEC0 000040 [ 0.000000] ACPI: SSDT 0x00000000BFFFF590 000930 (v01 Google GOOGSSDT 00000001 GOOG 00000001) [ 0.000000] ACPI: APIC 0x00000000BFFFF4A0 000076 (v01 Google GOOGAPIC 00000001 GOOG 00000001) [ 0.000000] ACPI: WAET 0x00000000BFFFF470 000028 (v01 Google GOOGWAET 00000001 GOOG 00000001) [ 0.000000] kvm-clock: Using msrs 4b564d01 and 4b564d00 [ 0.000000] kvm-clock: cpu 0, msr 2:1fffd001, primary cpu clock [ 0.000000] kvm-clock: using sched offset of 1323270281 cycles [ 0.000000] clocksource: kvm-clock: mask: 0xffffffffffffffff max_cycles: 0x1cd42e4dffb, max_idle_ns: 881590591483 ns [ 0.000000] Zone ranges: [ 0.000000] DMA [mem 0x0000000000001000-0x0000000000ffffff] [ 0.000000] DMA32 [mem 0x0000000001000000-0x00000000ffffffff] [ 0.000000] Normal [mem 0x0000000100000000-0x000000021fffffff] [ 0.000000] Movable zone start for each node [ 0.000000] Early memory node ranges [ 0.000000] node 0: [mem 0x0000000000001000-0x000000000009efff] [ 0.000000] node 0: [mem 0x0000000000100000-0x00000000bfffcfff] [ 0.000000] node 0: [mem 0x0000000100000000-0x000000021fffffff] [ 0.000000] Initmem setup node 0 [mem 0x0000000000001000-0x000000021fffffff] [ 0.000000] kasan: KernelAddressSanitizer initialized [ 0.000000] ACPI: PM-Timer IO Port: 0xb008 [ 0.000000] ACPI: LAPIC_NMI (acpi_id[0xff] dfl dfl lint[0x1]) [ 0.000000] IOAPIC[0]: apic_id 0, version 17, address 0xfec00000, GSI 0-23 [ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 5 global_irq 5 high level) [ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 9 global_irq 9 high level) [ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 10 global_irq 10 high level) [ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 11 global_irq 11 high level) [ 0.000000] Using ACPI (MADT) for SMP configuration information [ 0.000000] smpboot: Allowing 2 CPUs, 0 hotplug CPUs [ 0.000000] PM: Registered nosave memory: [mem 0x00000000-0x00000fff] [ 0.000000] PM: Registered nosave memory: [mem 0x0009f000-0x0009ffff] [ 0.000000] PM: Registered nosave memory: [mem 0x000a0000-0x000effff] [ 0.000000] PM: Registered nosave memory: [mem 0x000f0000-0x000fffff] [ 0.000000] PM: Registered nosave memory: [mem 0xbfffd000-0xbfffffff] [ 0.000000] PM: Registered nosave memory: [mem 0xc0000000-0xfffbbfff] [ 0.000000] PM: Registered nosave memory: [mem 0xfffbc000-0xffffffff] [ 0.000000] e820: [mem 0xc0000000-0xfffbbfff] available for PCI devices [ 0.000000] Booting paravirtualized kernel on KVM [ 0.000000] clocksource: refined-jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604462750000 ns [ 0.000000] setup_percpu: NR_CPUS:64 nr_cpumask_bits:64 nr_cpu_ids:2 nr_node_ids:1 [ 0.000000] PERCPU: Embedded 42 pages/cpu @ffff8801db200000 s132680 r8192 d31160 u1048576 [ 0.000000] Built 1 zonelists in Zone order, mobility grouping on. Total pages: 1935238 [ 0.000000] Kernel command line: BOOT_IMAGE=/vmlinuz root=/dev/sda1 console=ttyS0 earlyprintk=serial vsyscall=native rodata=n ftrace_dump_on_oops=orig_cpu oops=panic panic_on_warn=1 nmi_watchdog=panic panic=86400 workqueue.watchdog_thresh=120 [ 0.000000] PID hash table entries: 4096 (order: 3, 32768 bytes) [ 0.000000] Dentry cache hash table entries: 1048576 (order: 11, 8388608 bytes) [ 0.000000] Inode-cache hash table entries: 524288 (order: 10, 4194304 bytes) [ 0.000000] ================================================================== [ 0.000000] BUG: KASAN: stack-out-of-bounds in reserve_bootmem_region+0xdf/0x130 [ 0.000000] Write of size 8 at addr ffffea0000047ce0 by task swapper/0 [ 0.000000] [ 0.000000] CPU: 0 PID: 0 Comm: swapper Not tainted 4.4.108-g55b3b8c #7 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 7998e3b68aa03236 ffffffff84207ce8 ffffffff81d02e5d [ 0.000000] ffffea0000047ce0 ffffea0000047ce0 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d20 ffffffff814fb329 ffffea0000047ce0 [ 0.000000] Call Trace: [ 0.000000] [] dump_stack+0xc1/0x124 [ 0.000000] [] print_address_description+0x189/0x260 [ 0.000000] [] kasan_report+0x285/0x370 [ 0.000000] [] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] free_all_bootmem+0xf2/0x24d [ 0.000000] [] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [] ? dmar_table_detect+0x60/0x60 [ 0.000000] [] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [] mem_init+0x13/0x74 [ 0.000000] [] start_kernel+0x31d/0x6e9 [ 0.000000] [] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [] x86_64_start_kernel+0x140/0x163 [ 0.000000] [ 0.000000] [ 0.000000] Memory state around the buggy address: [ 0.000000] ffffea0000047b80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ffffea0000047c00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] >ffffea0000047c80: 00 00 00 00 00 00 f1 f1 f1 f1 00 00 f2 f2 00 00 [ 0.000000] ^ [ 0.000000] ffffea0000047d00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ffffea0000047d80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ================================================================== [ 0.000000] Disabling lock debugging due to kernel taint [ 0.000000] Kernel panic - not syncing: panic_on_warn set ... [ 0.000000] [ 0.000000] CPU: 0 PID: 0 Comm: swapper Tainted: G B 4.4.108-g55b3b8c #7 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 7998e3b68aa03236 ffffffff84207c40 ffffffff81d02e5d [ 0.000000] ffffffff83fb34b5 ffffffff84207d18 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d08 ffffffff81417caa 0000000041b58ab3 [ 0.000000] Call Trace: [ 0.000000] [] dump_stack+0xc1/0x124 [ 0.000000] [] panic+0x1aa/0x388 [ 0.000000] [] ? percpu_up_read.constprop.45+0xe1/0xe1 [ 0.000000] [] kasan_end_report+0x50/0x50 [ 0.000000] [] kasan_report+0x15c/0x370 [ 0.000000] [] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] free_all_bootmem+0xf2/0x24d [ 0.000000] [] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [] ? dmar_table_detect+0x60/0x60 [ 0.000000] [] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [] mem_init+0x13/0x74 [ 0.000000] [] start_kernel+0x31d/0x6e9 [ 0.000000] [] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [] x86_64_start_kernel+0x140/0x163 [ 0.000000] Rebooting in 86400 seconds.. [ 0.000000] ACPI MEMORY or I/O RESET_REG. SeaBIOS (version 1.8.2-20171012_061934-google) Total RAM Size = 0x00000001e0000000 = 7680 MiB CPUs found: 2 Max CPUs supported: 2 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 0x000f3050: PCHS=0/0/0 translation=lba LCHS=520/128/63 s=4194304 Booting from Hard Disk 0... early console in decompress_kernel input_data: 0x00000000039be26e input_len: 0x0000000001424e03 output: 0x0000000001000000 output_len: 0x0000000003dcea40 run_size: 0x0000000005504000 Decompressing Linux... Parsing ELF... done. Booting the kernel. [ 0.000000] Initializing cgroup subsys cpuset [ 0.000000] Initializing cgroup subsys cpu [ 0.000000] Initializing cgroup subsys cpuacct [ 0.000000] Initializing cgroup subsys schedtune [ 0.000000] Linux version 4.4.108-g55b3b8c (syzkaller@ci) (gcc version 7.1.1 20170620 (GCC) ) #7 SMP PREEMPT Fri Dec 29 21:50:38 UTC 2017 [ 0.000000] Command line: BOOT_IMAGE=/vmlinuz root=/dev/sda1 console=ttyS0 earlyprintk=serial vsyscall=native rodata=n ftrace_dump_on_oops=orig_cpu oops=panic panic_on_warn=1 nmi_watchdog=panic panic=86400 workqueue.watchdog_thresh=120 [ 0.000000] KERNEL supported cpus: [ 0.000000] Intel GenuineIntel [ 0.000000] AMD AuthenticAMD [ 0.000000] Centaur CentaurHauls [ 0.000000] x86/fpu: xstate_offset[2]: 576, xstate_sizes[2]: 256 [ 0.000000] x86/fpu: Supporting XSAVE feature 0x01: 'x87 floating point registers' [ 0.000000] x86/fpu: Supporting XSAVE feature 0x02: 'SSE registers' [ 0.000000] x86/fpu: Supporting XSAVE feature 0x04: 'AVX registers' [ 0.000000] x86/fpu: Enabled xstate features 0x7, context size is 832 bytes, using 'standard' format. [ 0.000000] x86/fpu: Using 'eager' FPU context switches. [ 0.000000] e820: BIOS-provided physical RAM map: [ 0.000000] BIOS-e820: [mem 0x0000000000000000-0x000000000009fbff] usable [ 0.000000] BIOS-e820: [mem 0x000000000009fc00-0x000000000009ffff] reserved [ 0.000000] BIOS-e820: [mem 0x00000000000f0000-0x00000000000fffff] reserved [ 0.000000] BIOS-e820: [mem 0x0000000000100000-0x00000000bfffcfff] usable [ 0.000000] BIOS-e820: [mem 0x00000000bfffd000-0x00000000bfffffff] reserved [ 0.000000] BIOS-e820: [mem 0x00000000fffbc000-0x00000000ffffffff] reserved [ 0.000000] BIOS-e820: [mem 0x0000000100000000-0x000000021fffffff] usable [ 0.000000] bootconsole [earlyser0] enabled [ 0.000000] NX (Execute Disable) protection: active [ 0.000000] SMBIOS 2.4 present. [ 0.000000] Hypervisor detected: KVM [ 0.000000] e820: last_pfn = 0x220000 max_arch_pfn = 0x400000000 [ 0.000000] x86/PAT: Configuration [0-7]: WB WC UC- UC WB WC UC- WT [ 0.000000] e820: last_pfn = 0xbfffd max_arch_pfn = 0x400000000 [ 0.000000] found SMP MP-table at [mem 0x000f32c0-0x000f32cf] mapped at [ffff8800000f32c0] [ 0.000000] Scanning 1 areas for low memory corruption [ 0.000000] Using GB pages for direct mapping [ 0.000000] ACPI: Early table checksum verification disabled [ 0.000000] ACPI: RSDP 0x00000000000F3090 000014 (v00 Google) [ 0.000000] ACPI: RSDT 0x00000000BFFFDC70 000034 (v01 Google GOOGRSDT 00000001 GOOG 00000001) [ 0.000000] ACPI: FACP 0x00000000BFFFFF00 0000F4 (v02 Google GOOGFACP 00000001 GOOG 00000001) [ 0.000000] ACPI: DSDT 0x00000000BFFFDCB0 0017B2 (v01 Google GOOGDSDT 00000001 GOOG 00000001) [ 0.000000] ACPI: FACS 0x00000000BFFFFEC0 000040 [ 0.000000] ACPI: FACS 0x00000000BFFFFEC0 000040 [ 0.000000] ACPI: SSDT 0x00000000BFFFF590 000930 (v01 Google GOOGSSDT 00000001 GOOG 00000001) [ 0.000000] ACPI: APIC 0x00000000BFFFF4A0 000076 (v01 Google GOOGAPIC 00000001 GOOG 00000001) [ 0.000000] ACPI: WAET 0x00000000BFFFF470 000028 (v01 Google GOOGWAET 00000001 GOOG 00000001) [ 0.000000] kvm-clock: Using msrs 4b564d01 and 4b564d00 [ 0.000000] kvm-clock: cpu 0, msr 2:1fffd001, primary cpu clock [ 0.000000] kvm-clock: using sched offset of 1217475866 cycles [ 0.000000] clocksource: kvm-clock: mask: 0xffffffffffffffff max_cycles: 0x1cd42e4dffb, max_idle_ns: 881590591483 ns [ 0.000000] Zone ranges: [ 0.000000] DMA [mem 0x0000000000001000-0x0000000000ffffff] [ 0.000000] DMA32 [mem 0x0000000001000000-0x00000000ffffffff] [ 0.000000] Normal [mem 0x0000000100000000-0x000000021fffffff] [ 0.000000] Movable zone start for each node [ 0.000000] Early memory node ranges [ 0.000000] node 0: [mem 0x0000000000001000-0x000000000009efff] [ 0.000000] node 0: [mem 0x0000000000100000-0x00000000bfffcfff] [ 0.000000] node 0: [mem 0x0000000100000000-0x000000021fffffff] [ 0.000000] Initmem setup node 0 [mem 0x0000000000001000-0x000000021fffffff] [ 0.000000] kasan: KernelAddressSanitizer initialized [ 0.000000] ACPI: PM-Timer IO Port: 0xb008 [ 0.000000] ACPI: LAPIC_NMI (acpi_id[0xff] dfl dfl lint[0x1]) [ 0.000000] IOAPIC[0]: apic_id 0, version 17, address 0xfec00000, GSI 0-23 [ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 5 global_irq 5 high level) [ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 9 global_irq 9 high level) [ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 10 global_irq 10 high level) [ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 11 global_irq 11 high level) [ 0.000000] Using ACPI (MADT) for SMP configuration information [ 0.000000] smpboot: Allowing 2 CPUs, 0 hotplug CPUs [ 0.000000] PM: Registered nosave memory: [mem 0x00000000-0x00000fff] [ 0.000000] PM: Registered nosave memory: [mem 0x0009f000-0x0009ffff] [ 0.000000] PM: Registered nosave memory: [mem 0x000a0000-0x000effff] [ 0.000000] PM: Registered nosave memory: [mem 0x000f0000-0x000fffff] [ 0.000000] PM: Registered nosave memory: [mem 0xbfffd000-0xbfffffff] [ 0.000000] PM: Registered nosave memory: [mem 0xc0000000-0xfffbbfff] [ 0.000000] PM: Registered nosave memory: [mem 0xfffbc000-0xffffffff] [ 0.000000] e820: [mem 0xc0000000-0xfffbbfff] available for PCI devices [ 0.000000] Booting paravirtualized kernel on KVM [ 0.000000] clocksource: refined-jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604462750000 ns [ 0.000000] setup_percpu: NR_CPUS:64 nr_cpumask_bits:64 nr_cpu_ids:2 nr_node_ids:1 [ 0.000000] PERCPU: Embedded 42 pages/cpu @ffff8801db200000 s132680 r8192 d31160 u1048576 [ 0.000000] Built 1 zonelists in Zone order, mobility grouping on. Total pages: 1935238 [ 0.000000] Kernel command line: BOOT_IMAGE=/vmlinuz root=/dev/sda1 console=ttyS0 earlyprintk=serial vsyscall=native rodata=n ftrace_dump_on_oops=orig_cpu oops=panic panic_on_warn=1 nmi_watchdog=panic panic=86400 workqueue.watchdog_thresh=120 [ 0.000000] PID hash table entries: 4096 (order: 3, 32768 bytes) [ 0.000000] Dentry cache hash table entries: 1048576 (order: 11, 8388608 bytes) [ 0.000000] Inode-cache hash table entries: 524288 (order: 10, 4194304 bytes) [ 0.000000] ================================================================== [ 0.000000] BUG: KASAN: stack-out-of-bounds in reserve_bootmem_region+0xdf/0x130 [ 0.000000] Write of size 8 at addr ffffea0000047ce0 by task swapper/0 [ 0.000000] [ 0.000000] CPU: 0 PID: 0 Comm: swapper Not tainted 4.4.108-g55b3b8c #7 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 6b2b150d7c32638d ffffffff84207ce8 ffffffff81d02e5d [ 0.000000] ffffea0000047ce0 ffffea0000047ce0 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d20 ffffffff814fb329 ffffea0000047ce0 [ 0.000000] Call Trace: [ 0.000000] [] dump_stack+0xc1/0x124 [ 0.000000] [] print_address_description+0x189/0x260 [ 0.000000] [] kasan_report+0x285/0x370 [ 0.000000] [] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] free_all_bootmem+0xf2/0x24d [ 0.000000] [] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [] ? dmar_table_detect+0x60/0x60 [ 0.000000] [] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [] mem_init+0x13/0x74 [ 0.000000] [] start_kernel+0x31d/0x6e9 [ 0.000000] [] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [] x86_64_start_kernel+0x140/0x163 [ 0.000000] [ 0.000000] [ 0.000000] Memory state around the buggy address: [ 0.000000] ffffea0000047b80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ffffea0000047c00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] >ffffea0000047c80: 00 00 00 00 00 00 f1 f1 f1 f1 00 00 f2 f2 00 00 [ 0.000000] ^ [ 0.000000] ffffea0000047d00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ffffea0000047d80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ================================================================== [ 0.000000] Disabling lock debugging due to kernel taint [ 0.000000] Kernel panic - not syncing: panic_on_warn set ... [ 0.000000] [ 0.000000] CPU: 0 PID: 0 Comm: swapper Tainted: G B 4.4.108-g55b3b8c #7 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 6b2b150d7c32638d ffffffff84207c40 ffffffff81d02e5d [ 0.000000] ffffffff83fb34b5 ffffffff84207d18 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d08 ffffffff81417caa 0000000041b58ab3 [ 0.000000] Call Trace: [ 0.000000] [] dump_stack+0xc1/0x124 [ 0.000000] [] panic+0x1aa/0x388 [ 0.000000] [] ? percpu_up_read.constprop.45+0xe1/0xe1 [ 0.000000] [] kasan_end_report+0x50/0x50 [ 0.000000] [] kasan_report+0x15c/0x370 [ 0.000000] [] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] free_all_bootmem+0xf2/0x24d [ 0.000000] [] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [] ? dmar_table_detect+0x60/0x60 [ 0.000000] [] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [] mem_init+0x13/0x74 [ 0.000000] [] start_kernel+0x31d/0x6e9 [ 0.000000] [] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [] x86_64_start_kernel+0x140/0x163 [ 0.000000] Rebooting in 86400 seconds.. [ 0.000000] ACPI MEMORY or I/O RESET_REG. SeaBIOS (version 1.8.2-20171012_061934-google) Total RAM Size = 0x00000001e0000000 = 7680 MiB CPUs found: 2 Max CPUs supported: 2 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 0x000f3050: PCHS=0/0/0 translation=lba LCHS=520/128/63 s=4194304 Booting from Hard Disk 0... early console in decompress_kernel input_data: 0x00000000039be26e input_len: 0x0000000001424e03 output: 0x0000000001000000 output_len: 0x0000000003dcea40 run_size: 0x0000000005504000 Decompressing Linux... Parsing ELF... done. Booting the kernel. [ 0.000000] Initializing cgroup subsys cpuset [ 0.000000] Initializing cgroup subsys cpu [ 0.000000] Initializing cgroup subsys cpuacct [ 0.000000] Initializing cgroup subsys schedtune [ 0.000000] Linux version 4.4.108-g55b3b8c (syzkaller@ci) (gcc version 7.1.1 20170620 (GCC) ) #7 SMP PREEMPT Fri Dec 29 21:50:38 UTC 2017 [ 0.000000] Command line: BOOT_IMAGE=/vmlinuz root=/dev/sda1 console=ttyS0 earlyprintk=serial vsyscall=native rodata=n ftrace_dump_on_oops=orig_cpu oops=panic panic_on_warn=1 nmi_watchdog=panic panic=86400 workqueue.watchdog_thresh=120 [ 0.000000] KERNEL supported cpus: [ 0.000000] Intel GenuineIntel [ 0.000000] AMD AuthenticAMD [ 0.000000] Centaur CentaurHauls [ 0.000000] x86/fpu: xstate_offset[2]: 576, xstate_sizes[2]: 256 [ 0.000000] x86/fpu: Supporting XSAVE feature 0x01: 'x87 floating point registers' [ 0.000000] x86/fpu: Supporting XSAVE feature 0x02: 'SSE registers' [ 0.000000] x86/fpu: Supporting XSAVE feature 0x04: 'AVX registers' [ 0.000000] x86/fpu: Enabled xstate features 0x7, context size is 832 bytes, using 'standard' format. [ 0.000000] x86/fpu: Using 'eager' FPU context switches. [ 0.000000] e820: BIOS-provided physical RAM map: [ 0.000000] BIOS-e820: [mem 0x0000000000000000-0x000000000009fbff] usable [ 0.000000] BIOS-e820: [mem 0x000000000009fc00-0x000000000009ffff] reserved [ 0.000000] BIOS-e820: [mem 0x00000000000f0000-0x00000000000fffff] reserved [ 0.000000] BIOS-e820: [mem 0x0000000000100000-0x00000000bfffcfff] usable [ 0.000000] BIOS-e820: [mem 0x00000000bfffd000-0x00000000bfffffff] reserved [ 0.000000] BIOS-e820: [mem 0x00000000fffbc000-0x00000000ffffffff] reserved [ 0.000000] BIOS-e820: [mem 0x0000000100000000-0x000000021fffffff] usable [ 0.000000] bootconsole [earlyser0] enabled [ 0.000000] NX (Execute Disable) protection: active [ 0.000000] SMBIOS 2.4 present. [ 0.000000] Hypervisor detected: KVM [ 0.000000] e820: last_pfn = 0x220000 max_arch_pfn = 0x400000000 [ 0.000000] x86/PAT: Configuration [0-7]: WB WC UC- UC WB WC UC- WT [ 0.000000] e820: last_pfn = 0xbfffd max_arch_pfn = 0x400000000 [ 0.000000] found SMP MP-table at [mem 0x000f32c0-0x000f32cf] mapped at [ffff8800000f32c0] [ 0.000000] Scanning 1 areas for low memory corruption [ 0.000000] Using GB pages for direct mapping [ 0.000000] ACPI: Early table checksum verification disabled [ 0.000000] ACPI: RSDP 0x00000000000F3090 000014 (v00 Google) [ 0.000000] ACPI: RSDT 0x00000000BFFFDC70 000034 (v01 Google GOOGRSDT 00000001 GOOG 00000001) [ 0.000000] ACPI: FACP 0x00000000BFFFFF00 0000F4 (v02 Google GOOGFACP 00000001 GOOG 00000001) [ 0.000000] ACPI: DSDT 0x00000000BFFFDCB0 0017B2 (v01 Google GOOGDSDT 00000001 GOOG 00000001) [ 0.000000] ACPI: FACS 0x00000000BFFFFEC0 000040 [ 0.000000] ACPI: FACS 0x00000000BFFFFEC0 000040 [ 0.000000] ACPI: SSDT 0x00000000BFFFF590 000930 (v01 Google GOOGSSDT 00000001 GOOG 00000001) [ 0.000000] ACPI: APIC 0x00000000BFFFF4A0 000076 (v01 Google GOOGAPIC 00000001 GOOG 00000001) [ 0.000000] ACPI: WAET 0x00000000BFFFF470 000028 (v01 Google GOOGWAET 00000001 GOOG 00000001) [ 0.000000] kvm-clock: Using msrs 4b564d01 and 4b564d00 [ 0.000000] kvm-clock: cpu 0, msr 2:1fffd001, primary cpu clock [ 0.000000] kvm-clock: using sched offset of 1212179780 cycles [ 0.000000] clocksource: kvm-clock: mask: 0xffffffffffffffff max_cycles: 0x1cd42e4dffb, max_idle_ns: 881590591483 ns [ 0.000000] Zone ranges: [ 0.000000] DMA [mem 0x0000000000001000-0x0000000000ffffff] [ 0.000000] DMA32 [mem 0x0000000001000000-0x00000000ffffffff] [ 0.000000] Normal [mem 0x0000000100000000-0x000000021fffffff] [ 0.000000] Movable zone start for each node [ 0.000000] Early memory node ranges [ 0.000000] node 0: [mem 0x0000000000001000-0x000000000009efff] [ 0.000000] node 0: [mem 0x0000000000100000-0x00000000bfffcfff] [ 0.000000] node 0: [mem 0x0000000100000000-0x000000021fffffff] [ 0.000000] Initmem setup node 0 [mem 0x0000000000001000-0x000000021fffffff] [ 0.000000] kasan: KernelAddressSanitizer initialized [ 0.000000] ACPI: PM-Timer IO Port: 0xb008 [ 0.000000] ACPI: LAPIC_NMI (acpi_id[0xff] dfl dfl lint[0x1]) [ 0.000000] IOAPIC[0]: apic_id 0, version 17, address 0xfec00000, GSI 0-23 [ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 5 global_irq 5 high level) [ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 9 global_irq 9 high level) [ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 10 global_irq 10 high level) [ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 11 global_irq 11 high level) [ 0.000000] Using ACPI (MADT) for SMP configuration information [ 0.000000] smpboot: Allowing 2 CPUs, 0 hotplug CPUs [ 0.000000] PM: Registered nosave memory: [mem 0x00000000-0x00000fff] [ 0.000000] PM: Registered nosave memory: [mem 0x0009f000-0x0009ffff] [ 0.000000] PM: Registered nosave memory: [mem 0x000a0000-0x000effff] [ 0.000000] PM: Registered nosave memory: [mem 0x000f0000-0x000fffff] [ 0.000000] PM: Registered nosave memory: [mem 0xbfffd000-0xbfffffff] [ 0.000000] PM: Registered nosave memory: [mem 0xc0000000-0xfffbbfff] [ 0.000000] PM: Registered nosave memory: [mem 0xfffbc000-0xffffffff] [ 0.000000] e820: [mem 0xc0000000-0xfffbbfff] available for PCI devices [ 0.000000] Booting paravirtualized kernel on KVM [ 0.000000] clocksource: refined-jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604462750000 ns [ 0.000000] setup_percpu: NR_CPUS:64 nr_cpumask_bits:64 nr_cpu_ids:2 nr_node_ids:1 [ 0.000000] PERCPU: Embedded 42 pages/cpu @ffff8801db200000 s132680 r8192 d31160 u1048576 [ 0.000000] Built 1 zonelists in Zone order, mobility grouping on. Total pages: 1935238 [ 0.000000] Kernel command line: BOOT_IMAGE=/vmlinuz root=/dev/sda1 console=ttyS0 earlyprintk=serial vsyscall=native rodata=n ftrace_dump_on_oops=orig_cpu oops=panic panic_on_warn=1 nmi_watchdog=panic panic=86400 workqueue.watchdog_thresh=120 [ 0.000000] PID hash table entries: 4096 (order: 3, 32768 bytes) [ 0.000000] Dentry cache hash table entries: 1048576 (order: 11, 8388608 bytes) [ 0.000000] Inode-cache hash table entries: 524288 (order: 10, 4194304 bytes) [ 0.000000] ================================================================== [ 0.000000] BUG: KASAN: stack-out-of-bounds in reserve_bootmem_region+0xdf/0x130 [ 0.000000] Write of size 8 at addr ffffea0000047ce0 by task swapper/0 [ 0.000000] [ 0.000000] CPU: 0 PID: 0 Comm: swapper Not tainted 4.4.108-g55b3b8c #7 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 6a7134be7b78833e ffffffff84207ce8 ffffffff81d02e5d [ 0.000000] ffffea0000047ce0 ffffea0000047ce0 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d20 ffffffff814fb329 ffffea0000047ce0 [ 0.000000] Call Trace: [ 0.000000] [] dump_stack+0xc1/0x124 [ 0.000000] [] print_address_description+0x189/0x260 [ 0.000000] [] kasan_report+0x285/0x370 [ 0.000000] [] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] free_all_bootmem+0xf2/0x24d [ 0.000000] [] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [] ? dmar_table_detect+0x60/0x60 [ 0.000000] [] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [] mem_init+0x13/0x74 [ 0.000000] [] start_kernel+0x31d/0x6e9 [ 0.000000] [] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [] x86_64_start_kernel+0x140/0x163 [ 0.000000] [ 0.000000] [ 0.000000] Memory state around the buggy address: [ 0.000000] ffffea0000047b80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ffffea0000047c00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] >ffffea0000047c80: 00 00 00 00 00 00 f1 f1 f1 f1 00 00 f2 f2 00 00 [ 0.000000] ^ [ 0.000000] ffffea0000047d00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ffffea0000047d80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ================================================================== [ 0.000000] Disabling lock debugging due to kernel taint [ 0.000000] Kernel panic - not syncing: panic_on_warn set ... [ 0.000000] [ 0.000000] CPU: 0 PID: 0 Comm: swapper Tainted: G B 4.4.108-g55b3b8c #7 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 6a7134be7b78833e ffffffff84207c40 ffffffff81d02e5d [ 0.000000] ffffffff83fb34b5 ffffffff84207d18 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d08 ffffffff81417caa 0000000041b58ab3 [ 0.000000] Call Trace: [ 0.000000] [] dump_stack+0xc1/0x124 [ 0.000000] [] panic+0x1aa/0x388 [ 0.000000] [] ? percpu_up_read.constprop.45+0xe1/0xe1 [ 0.000000] [] kasan_end_report+0x50/0x50 [ 0.000000] [] kasan_report+0x15c/0x370 [ 0.000000] [] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] free_all_bootmem+0xf2/0x24d [ 0.000000] [] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [] ? dmar_table_detect+0x60/0x60 [ 0.000000] [] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [] mem_init+0x13/0x74 [ 0.000000] [] start_kernel+0x31d/0x6e9 [ 0.000000] [] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [] x86_64_start_kernel+0x140/0x163 [ 0.000000] Rebooting in 86400 seconds.. [ 0.000000] ACPI MEMORY or I/O RESET_REG. SeaBIOS (version 1.8.2-20171012_061934-google) Total RAM Size = 0x00000001e0000000 = 7680 MiB CPUs found: 2 Max CPUs supported: 2 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 0x000f3050: PCHS=0/0/0 translation=lba LCHS=520/128/63 s=4194304 Booting from Hard Disk 0... early console in decompress_kernel input_data: 0x00000000039be26e input_len: 0x0000000001424e03 output: 0x0000000001000000 output_len: 0x0000000003dcea40 run_size: 0x0000000005504000 Decompressing Linux... Parsing ELF... done. Booting the kernel. [ 0.000000] Initializing cgroup subsys cpuset [ 0.000000] Initializing cgroup subsys cpu [ 0.000000] Initializing cgroup subsys cpuacct [ 0.000000] Initializing cgroup subsys schedtune [ 0.000000] Linux version 4.4.108-g55b3b8c (syzkaller@ci) (gcc version 7.1.1 20170620 (GCC) ) #7 SMP PREEMPT Fri Dec 29 21:50:38 UTC 2017 [ 0.000000] Command line: BOOT_IMAGE=/vmlinuz root=/dev/sda1 console=ttyS0 earlyprintk=serial vsyscall=native rodata=n ftrace_dump_on_oops=orig_cpu oops=panic panic_on_warn=1 nmi_watchdog=panic panic=86400 workqueue.watchdog_thresh=120 [ 0.000000] KERNEL supported cpus: [ 0.000000] Intel GenuineIntel [ 0.000000] AMD AuthenticAMD [ 0.000000] Centaur CentaurHauls [ 0.000000] x86/fpu: xstate_offset[2]: 576, xstate_sizes[2]: 256 [ 0.000000] x86/fpu: Supporting XSAVE feature 0x01: 'x87 floating point registers' [ 0.000000] x86/fpu: Supporting XSAVE feature 0x02: 'SSE registers' [ 0.000000] x86/fpu: Supporting XSAVE feature 0x04: 'AVX registers' [ 0.000000] x86/fpu: Enabled xstate features 0x7, context size is 832 bytes, using 'standard' format. [ 0.000000] x86/fpu: Using 'eager' FPU context switches. [ 0.000000] e820: BIOS-provided physical RAM map: [ 0.000000] BIOS-e820: [mem 0x0000000000000000-0x000000000009fbff] usable [ 0.000000] BIOS-e820: [mem 0x000000000009fc00-0x000000000009ffff] reserved [ 0.000000] BIOS-e820: [mem 0x00000000000f0000-0x00000000000fffff] reserved [ 0.000000] BIOS-e820: [mem 0x0000000000100000-0x00000000bfffcfff] usable [ 0.000000] BIOS-e820: [mem 0x00000000bfffd000-0x00000000bfffffff] reserved [ 0.000000] BIOS-e820: [mem 0x00000000fffbc000-0x00000000ffffffff] reserved [ 0.000000] BIOS-e820: [mem 0x0000000100000000-0x000000021fffffff] usable [ 0.000000] bootconsole [earlyser0] enabled [ 0.000000] NX (Execute Disable) protection: active [ 0.000000] SMBIOS 2.4 present. [ 0.000000] Hypervisor detected: KVM [ 0.000000] e820: last_pfn = 0x220000 max_arch_pfn = 0x400000000 [ 0.000000] x86/PAT: Configuration [0-7]: WB WC UC- UC WB WC UC- WT [ 0.000000] e820: last_pfn = 0xbfffd max_arch_pfn = 0x400000000 [ 0.000000] found SMP MP-table at [mem 0x000f32c0-0x000f32cf] mapped at [ffff8800000f32c0] [ 0.000000] Scanning 1 areas for low memory corruption [ 0.000000] Using GB pages for direct mapping [ 0.000000] ACPI: Early table checksum verification disabled [ 0.000000] ACPI: RSDP 0x00000000000F3090 000014 (v00 Google) [ 0.000000] ACPI: RSDT 0x00000000BFFFDC70 000034 (v01 Google GOOGRSDT 00000001 GOOG 00000001) [ 0.000000] ACPI: FACP 0x00000000BFFFFF00 0000F4 (v02 Google GOOGFACP 00000001 GOOG 00000001) [ 0.000000] ACPI: DSDT 0x00000000BFFFDCB0 0017B2 (v01 Google GOOGDSDT 00000001 GOOG 00000001) [ 0.000000] ACPI: FACS 0x00000000BFFFFEC0 000040 [ 0.000000] ACPI: FACS 0x00000000BFFFFEC0 000040 [ 0.000000] ACPI: SSDT 0x00000000BFFFF590 000930 (v01 Google GOOGSSDT 00000001 GOOG 00000001) [ 0.000000] ACPI: APIC 0x00000000BFFFF4A0 000076 (v01 Google GOOGAPIC 00000001 GOOG 00000001) [ 0.000000] ACPI: WAET 0x00000000BFFFF470 000028 (v01 Google GOOGWAET 00000001 GOOG 00000001) [ 0.000000] kvm-clock: Using msrs 4b564d01 and 4b564d00 [ 0.000000] kvm-clock: cpu 0, msr 2:1fffd001, primary cpu clock [ 0.000000] kvm-clock: using sched offset of 1168053418 cycles [ 0.000000] clocksource: kvm-clock: mask: 0xffffffffffffffff max_cycles: 0x1cd42e4dffb, max_idle_ns: 881590591483 ns [ 0.000000] Zone ranges: [ 0.000000] DMA [mem 0x0000000000001000-0x0000000000ffffff] [ 0.000000] DMA32 [mem 0x0000000001000000-0x00000000ffffffff] [ 0.000000] Normal [mem 0x0000000100000000-0x000000021fffffff] [ 0.000000] Movable zone start for each node [ 0.000000] Early memory node ranges [ 0.000000] node 0: [mem 0x0000000000001000-0x000000000009efff] [ 0.000000] node 0: [mem 0x0000000000100000-0x00000000bfffcfff] [ 0.000000] node 0: [mem 0x0000000100000000-0x000000021fffffff] [ 0.000000] Initmem setup node 0 [mem 0x0000000000001000-0x000000021fffffff] [ 0.000000] kasan: KernelAddressSanitizer initialized [ 0.000000] ACPI: PM-Timer IO Port: 0xb008 [ 0.000000] ACPI: LAPIC_NMI (acpi_id[0xff] dfl dfl lint[0x1]) [ 0.000000] IOAPIC[0]: apic_id 0, version 17, address 0xfec00000, GSI 0-23 [ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 5 global_irq 5 high level) [ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 9 global_irq 9 high level) [ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 10 global_irq 10 high level) [ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 11 global_irq 11 high level) [ 0.000000] Using ACPI (MADT) for SMP configuration information [ 0.000000] smpboot: Allowing 2 CPUs, 0 hotplug CPUs [ 0.000000] PM: Registered nosave memory: [mem 0x00000000-0x00000fff] [ 0.000000] PM: Registered nosave memory: [mem 0x0009f000-0x0009ffff] [ 0.000000] PM: Registered nosave memory: [mem 0x000a0000-0x000effff] [ 0.000000] PM: Registered nosave memory: [mem 0x000f0000-0x000fffff] [ 0.000000] PM: Registered nosave memory: [mem 0xbfffd000-0xbfffffff] [ 0.000000] PM: Registered nosave memory: [mem 0xc0000000-0xfffbbfff] [ 0.000000] PM: Registered nosave memory: [mem 0xfffbc000-0xffffffff] [ 0.000000] e820: [mem 0xc0000000-0xfffbbfff] available for PCI devices [ 0.000000] Booting paravirtualized kernel on KVM [ 0.000000] clocksource: refined-jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604462750000 ns [ 0.000000] setup_percpu: NR_CPUS:64 nr_cpumask_bits:64 nr_cpu_ids:2 nr_node_ids:1 [ 0.000000] PERCPU: Embedded 42 pages/cpu @ffff8801db200000 s132680 r8192 d31160 u1048576 [ 0.000000] Built 1 zonelists in Zone order, mobility grouping on. Total pages: 1935238 [ 0.000000] Kernel command line: BOOT_IMAGE=/vmlinuz root=/dev/sda1 console=ttyS0 earlyprintk=serial vsyscall=native rodata=n ftrace_dump_on_oops=orig_cpu oops=panic panic_on_warn=1 nmi_watchdog=panic panic=86400 workqueue.watchdog_thresh=120 [ 0.000000] PID hash table entries: 4096 (order: 3, 32768 bytes) [ 0.000000] Dentry cache hash table entries: 1048576 (order: 11, 8388608 bytes) [ 0.000000] Inode-cache hash table entries: 524288 (order: 10, 4194304 bytes) [ 0.000000] ================================================================== [ 0.000000] BUG: KASAN: stack-out-of-bounds in reserve_bootmem_region+0xdf/0x130 [ 0.000000] Write of size 8 at addr ffffea0000047ce0 by task swapper/0 [ 0.000000] [ 0.000000] CPU: 0 PID: 0 Comm: swapper Not tainted 4.4.108-g55b3b8c #7 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 64765c0a757daa8a ffffffff84207ce8 ffffffff81d02e5d [ 0.000000] ffffea0000047ce0 ffffea0000047ce0 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d20 ffffffff814fb329 ffffea0000047ce0 [ 0.000000] Call Trace: [ 0.000000] [] dump_stack+0xc1/0x124 [ 0.000000] [] print_address_description+0x189/0x260 [ 0.000000] [] kasan_report+0x285/0x370 [ 0.000000] [] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] free_all_bootmem+0xf2/0x24d [ 0.000000] [] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [] ? dmar_table_detect+0x60/0x60 [ 0.000000] [] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [] mem_init+0x13/0x74 [ 0.000000] [] start_kernel+0x31d/0x6e9 [ 0.000000] [] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [] x86_64_start_kernel+0x140/0x163 [ 0.000000] [ 0.000000] [ 0.000000] Memory state around the buggy address: [ 0.000000] ffffea0000047b80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ffffea0000047c00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] >ffffea0000047c80: 00 00 00 00 00 00 f1 f1 f1 f1 00 00 f2 f2 00 00 [ 0.000000] ^ [ 0.000000] ffffea0000047d00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ffffea0000047d80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ================================================================== [ 0.000000] Disabling lock debugging due to kernel taint [ 0.000000] Kernel panic - not syncing: panic_on_warn set ... [ 0.000000] [ 0.000000] CPU: 0 PID: 0 Comm: swapper Tainted: G B 4.4.108-g55b3b8c #7 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 64765c0a757daa8a ffffffff84207c40 ffffffff81d02e5d [ 0.000000] ffffffff83fb34b5 ffffffff84207d18 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d08 ffffffff81417caa 0000000041b58ab3 [ 0.000000] Call Trace: [ 0.000000] [] dump_stack+0xc1/0x124 [ 0.000000] [] panic+0x1aa/0x388 [ 0.000000] [] ? percpu_up_read.constprop.45+0xe1/0xe1 [ 0.000000] [] kasan_end_report+0x50/0x50 [ 0.000000] [] kasan_report+0x15c/0x370 [ 0.000000] [] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] free_all_bootmem+0xf2/0x24d [ 0.000000] [] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [] ? dmar_table_detect+0x60/0x60 [ 0.000000] [] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [] mem_init+0x13/0x74 [ 0.000000] [] start_kernel+0x31d/0x6e9 [ 0.000000] [] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [] x86_64_start_kernel+0x140/0x163 [ 0.000000] Rebooting in 86400 seconds.. [ 0.000000] ACPI MEMORY or I/O RESET_REG. SeaBIOS (version 1.8.2-20171012_061934-google) Total RAM Size = 0x00000001e0000000 = 7680 MiB CPUs found: 2 Max CPUs supported: 2 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 0x000f3050: PCHS=0/0/0 translation=lba LCHS=520/128/63 s=4194304 Booting from Hard Disk 0... early console in decompress_kernel input_data: 0x00000000039be26e input_len: 0x0000000001424e03 output: 0x0000000001000000 output_len: 0x0000000003dcea40 run_size: 0x0000000005504000 Decompressing Linux... Parsing ELF... done. Booting the kernel. [ 0.000000] Initializing cgroup subsys cpuset [ 0.000000] Initializing cgroup subsys cpu [ 0.000000] Initializing cgroup subsys cpuacct [ 0.000000] Initializing cgroup subsys schedtune [ 0.000000] Linux version 4.4.108-g55b3b8c (syzkaller@ci) (gcc version 7.1.1 20170620 (GCC) ) #7 SMP PREEMPT Fri Dec 29 21:50:38 UTC 2017 [ 0.000000] Command line: BOOT_IMAGE=/vmlinuz root=/dev/sda1 console=ttyS0 earlyprintk=serial vsyscall=native rodata=n ftrace_dump_on_oops=orig_cpu oops=panic panic_on_warn=1 nmi_watchdog=panic panic=86400 workqueue.watchdog_thresh=120 [ 0.000000] KERNEL supported cpus: [ 0.000000] Intel GenuineIntel [ 0.000000] AMD AuthenticAMD [ 0.000000] Centaur CentaurHauls [ 0.000000] x86/fpu: xstate_offset[2]: 576, xstate_sizes[2]: 256 [ 0.000000] x86/fpu: Supporting XSAVE feature 0x01: 'x87 floating point registers' [ 0.000000] x86/fpu: Supporting XSAVE feature 0x02: 'SSE registers' [ 0.000000] x86/fpu: Supporting XSAVE feature 0x04: 'AVX registers' [ 0.000000] x86/fpu: Enabled xstate features 0x7, context size is 832 bytes, using 'standard' format. [ 0.000000] x86/fpu: Using 'eager' FPU context switches. [ 0.000000] e820: BIOS-provided physical RAM map: [ 0.000000] BIOS-e820: [mem 0x0000000000000000-0x000000000009fbff] usable [ 0.000000] BIOS-e820: [mem 0x000000000009fc00-0x000000000009ffff] reserved [ 0.000000] BIOS-e820: [mem 0x00000000000f0000-0x00000000000fffff] reserved [ 0.000000] BIOS-e820: [mem 0x0000000000100000-0x00000000bfffcfff] usable [ 0.000000] BIOS-e820: [mem 0x00000000bfffd000-0x00000000bfffffff] reserved [ 0.000000] BIOS-e820: [mem 0x00000000fffbc000-0x00000000ffffffff] reserved [ 0.000000] BIOS-e820: [mem 0x0000000100000000-0x000000021fffffff] usable [ 0.000000] bootconsole [earlyser0] enabled [ 0.000000] NX (Execute Disable) protection: active [ 0.000000] SMBIOS 2.4 present. [ 0.000000] Hypervisor detected: KVM [ 0.000000] e820: last_pfn = 0x220000 max_arch_pfn = 0x400000000 [ 0.000000] x86/PAT: Configuration [0-7]: WB WC UC- UC WB WC UC- WT [ 0.000000] e820: last_pfn = 0xbfffd max_arch_pfn = 0x400000000 [ 0.000000] found SMP MP-table at [mem 0x000f32c0-0x000f32cf] mapped at [ffff8800000f32c0] [ 0.000000] Scanning 1 areas for low memory corruption [ 0.000000] Using GB pages for direct mapping [ 0.000000] ACPI: Early table checksum verification disabled [ 0.000000] ACPI: RSDP 0x00000000000F3090 000014 (v00 Google) [ 0.000000] ACPI: RSDT 0x00000000BFFFDC70 000034 (v01 Google GOOGRSDT 00000001 GOOG 00000001) [ 0.000000] ACPI: FACP 0x00000000BFFFFF00 0000F4 (v02 Google GOOGFACP 00000001 GOOG 00000001) [ 0.000000] ACPI: DSDT 0x00000000BFFFDCB0 0017B2 (v01 Google GOOGDSDT 00000001 GOOG 00000001) [ 0.000000] ACPI: FACS 0x00000000BFFFFEC0 000040 [ 0.000000] ACPI: FACS 0x00000000BFFFFEC0 000040 [ 0.000000] ACPI: SSDT 0x00000000BFFFF590 000930 (v01 Google GOOGSSDT 00000001 GOOG 00000001) [ 0.000000] ACPI: APIC 0x00000000BFFFF4A0 000076 (v01 Google GOOGAPIC 00000001 GOOG 00000001) [ 0.000000] ACPI: WAET 0x00000000BFFFF470 000028 (v01 Google GOOGWAET 00000001 GOOG 00000001) [ 0.000000] kvm-clock: Using msrs 4b564d01 and 4b564d00 [ 0.000000] kvm-clock: cpu 0, msr 2:1fffd001, primary cpu clock [ 0.000000] kvm-clock: using sched offset of 1185183523 cycles [ 0.000000] clocksource: kvm-clock: mask: 0xffffffffffffffff max_cycles: 0x1cd42e4dffb, max_idle_ns: 881590591483 ns [ 0.000000] Zone ranges: [ 0.000000] DMA [mem 0x0000000000001000-0x0000000000ffffff] [ 0.000000] DMA32 [mem 0x0000000001000000-0x00000000ffffffff] [ 0.000000] Normal [mem 0x0000000100000000-0x000000021fffffff] [ 0.000000] Movable zone start for each node [ 0.000000] Early memory node ranges [ 0.000000] node 0: [mem 0x0000000000001000-0x000000000009efff] [ 0.000000] node 0: [mem 0x0000000000100000-0x00000000bfffcfff] [ 0.000000] node 0: [mem 0x0000000100000000-0x000000021fffffff] [ 0.000000] Initmem setup node 0 [mem 0x0000000000001000-0x000000021fffffff] [ 0.000000] kasan: KernelAddressSanitizer initialized [ 0.000000] ACPI: PM-Timer IO Port: 0xb008 [ 0.000000] ACPI: LAPIC_NMI (acpi_id[0xff] dfl dfl lint[0x1]) [ 0.000000] IOAPIC[0]: apic_id 0, version 17, address 0xfec00000, GSI 0-23 [ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 5 global_irq 5 high level) [ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 9 global_irq 9 high level) [ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 10 global_irq 10 high level) [ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 11 global_irq 11 high level) [ 0.000000] Using ACPI (MADT) for SMP configuration information [ 0.000000] smpboot: Allowing 2 CPUs, 0 hotplug CPUs [ 0.000000] PM: Registered nosave memory: [mem 0x00000000-0x00000fff] [ 0.000000] PM: Registered nosave memory: [mem 0x0009f000-0x0009ffff] [ 0.000000] PM: Registered nosave memory: [mem 0x000a0000-0x000effff] [ 0.000000] PM: Registered nosave memory: [mem 0x000f0000-0x000fffff] [ 0.000000] PM: Registered nosave memory: [mem 0xbfffd000-0xbfffffff] [ 0.000000] PM: Registered nosave memory: [mem 0xc0000000-0xfffbbfff] [ 0.000000] PM: Registered nosave memory: [mem 0xfffbc000-0xffffffff] [ 0.000000] e820: [mem 0xc0000000-0xfffbbfff] available for PCI devices [ 0.000000] Booting paravirtualized kernel on KVM [ 0.000000] clocksource: refined-jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604462750000 ns [ 0.000000] setup_percpu: NR_CPUS:64 nr_cpumask_bits:64 nr_cpu_ids:2 nr_node_ids:1 [ 0.000000] PERCPU: Embedded 42 pages/cpu @ffff8801db200000 s132680 r8192 d31160 u1048576 [ 0.000000] Built 1 zonelists in Zone order, mobility grouping on. Total pages: 1935238 [ 0.000000] Kernel command line: BOOT_IMAGE=/vmlinuz root=/dev/sda1 console=ttyS0 earlyprintk=serial vsyscall=native rodata=n ftrace_dump_on_oops=orig_cpu oops=panic panic_on_warn=1 nmi_watchdog=panic panic=86400 workqueue.watchdog_thresh=120 [ 0.000000] PID hash table entries: 4096 (order: 3, 32768 bytes) [ 0.000000] Dentry cache hash table entries: 1048576 (order: 11, 8388608 bytes) [ 0.000000] Inode-cache hash table entries: 524288 (order: 10, 4194304 bytes) [ 0.000000] ================================================================== [ 0.000000] BUG: KASAN: stack-out-of-bounds in reserve_bootmem_region+0xdf/0x130 [ 0.000000] Write of size 8 at addr ffffea0000047ce0 by task swapper/0 [ 0.000000] [ 0.000000] CPU: 0 PID: 0 Comm: swapper Not tainted 4.4.108-g55b3b8c #7 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 66c352e577caa165 ffffffff84207ce8 ffffffff81d02e5d [ 0.000000] ffffea0000047ce0 ffffea0000047ce0 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d20 ffffffff814fb329 ffffea0000047ce0 [ 0.000000] Call Trace: [ 0.000000] [] dump_stack+0xc1/0x124 [ 0.000000] [] print_address_description+0x189/0x260 [ 0.000000] [] kasan_report+0x285/0x370 [ 0.000000] [] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] free_all_bootmem+0xf2/0x24d [ 0.000000] [] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [] ? dmar_table_detect+0x60/0x60 [ 0.000000] [] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [] mem_init+0x13/0x74 [ 0.000000] [] start_kernel+0x31d/0x6e9 [ 0.000000] [] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [] x86_64_start_kernel+0x140/0x163 [ 0.000000] [ 0.000000] [ 0.000000] Memory state around the buggy address: [ 0.000000] ffffea0000047b80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ffffea0000047c00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] >ffffea0000047c80: 00 00 00 00 00 00 f1 f1 f1 f1 00 00 f2 f2 00 00 [ 0.000000] ^ [ 0.000000] ffffea0000047d00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ffffea0000047d80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ================================================================== [ 0.000000] Disabling lock debugging due to kernel taint [ 0.000000] Kernel panic - not syncing: panic_on_warn set ... [ 0.000000] [ 0.000000] CPU: 0 PID: 0 Comm: swapper Tainted: G B 4.4.108-g55b3b8c #7 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 66c352e577caa165 ffffffff84207c40 ffffffff81d02e5d [ 0.000000] ffffffff83fb34b5 ffffffff84207d18 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d08 ffffffff81417caa 0000000041b58ab3 [ 0.000000] Call Trace: [ 0.000000] [] dump_stack+0xc1/0x124 [ 0.000000] [] panic+0x1aa/0x388 [ 0.000000] [] ? percpu_up_read.constprop.45+0xe1/0xe1 [ 0.000000] [] kasan_end_report+0x50/0x50 [ 0.000000] [] kasan_report+0x15c/0x370 [ 0.000000] [] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] free_all_bootmem+0xf2/0x24d [ 0.000000] [] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [] ? dmar_table_detect+0x60/0x60 [ 0.000000] [] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [] mem_init+0x13/0x74 [ 0.000000] [] start_kernel+0x31d/0x6e9 [ 0.000000] [] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [] x86_64_start_kernel+0x140/0x163 [ 0.000000] Rebooting in 86400 seconds.. [ 0.000000] ACPI MEMORY or I/O RESET_REG. SeaBIOS (version 1.8.2-20171012_061934-google) Total RAM Size = 0x00000001e0000000 = 7680 MiB CPUs found: 2 Max CPUs supported: 2 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 0x000f3050: PCHS=0/0/0 translation=lba LCHS=520/128/63 s=4194304 Booting from Hard Disk 0... early console in decompress_kernel input_data: 0x00000000039be26e input_len: 0x0000000001424e03 output: 0x0000000001000000 output_len: 0x0000000003dcea40 run_size: 0x0000000005504000 Decompressing Linux... Parsing ELF... done. Booting the kernel. [ 0.000000] Initializing cgroup subsys cpuset [ 0.000000] Initializing cgroup subsys cpu [ 0.000000] Initializing cgroup subsys cpuacct [ 0.000000] Initializing cgroup subsys schedtune [ 0.000000] Linux version 4.4.108-g55b3b8c (syzkaller@ci) (gcc version 7.1.1 20170620 (GCC) ) #7 SMP PREEMPT Fri Dec 29 21:50:38 UTC 2017 [ 0.000000] Command line: BOOT_IMAGE=/vmlinuz root=/dev/sda1 console=ttyS0 earlyprintk=serial vsyscall=native rodata=n ftrace_dump_on_oops=orig_cpu oops=panic panic_on_warn=1 nmi_watchdog=panic panic=86400 workqueue.watchdog_thresh=120 [ 0.000000] KERNEL supported cpus: [ 0.000000] Intel GenuineIntel [ 0.000000] AMD AuthenticAMD [ 0.000000] Centaur CentaurHauls [ 0.000000] x86/fpu: xstate_offset[2]: 576, xstate_sizes[2]: 256 [ 0.000000] x86/fpu: Supporting XSAVE feature 0x01: 'x87 floating point registers' [ 0.000000] x86/fpu: Supporting XSAVE feature 0x02: 'SSE registers' [ 0.000000] x86/fpu: Supporting XSAVE feature 0x04: 'AVX registers' [ 0.000000] x86/fpu: Enabled xstate features 0x7, context size is 832 bytes, using 'standard' format. [ 0.000000] x86/fpu: Using 'eager' FPU context switches. [ 0.000000] e820: BIOS-provided physical RAM map: [ 0.000000] BIOS-e820: [mem 0x0000000000000000-0x000000000009fbff] usable [ 0.000000] BIOS-e820: [mem 0x000000000009fc00-0x000000000009ffff] reserved [ 0.000000] BIOS-e820: [mem 0x00000000000f0000-0x00000000000fffff] reserved [ 0.000000] BIOS-e820: [mem 0x0000000000100000-0x00000000bfffcfff] usable [ 0.000000] BIOS-e820: [mem 0x00000000bfffd000-0x00000000bfffffff] reserved [ 0.000000] BIOS-e820: [mem 0x00000000fffbc000-0x00000000ffffffff] reserved [ 0.000000] BIOS-e820: [mem 0x0000000100000000-0x000000021fffffff] usable [ 0.000000] bootconsole [earlyser0] enabled [ 0.000000] NX (Execute Disable) protection: active [ 0.000000] SMBIOS 2.4 present. [ 0.000000] Hypervisor detected: KVM [ 0.000000] e820: last_pfn = 0x220000 max_arch_pfn = 0x400000000 [ 0.000000] x86/PAT: Configuration [0-7]: WB WC UC- UC WB WC UC- WT [ 0.000000] e820: last_pfn = 0xbfffd max_arch_pfn = 0x400000000 [ 0.000000] found SMP MP-table at [mem 0x000f32c0-0x000f32cf] mapped at [ffff8800000f32c0] [ 0.000000] Scanning 1 areas for low memory corruption [ 0.000000] Using GB pages for direct mapping [ 0.000000] ACPI: Early table checksum verification disabled [ 0.000000] ACPI: RSDP 0x00000000000F3090 000014 (v00 Google) [ 0.000000] ACPI: RSDT 0x00000000BFFFDC70 000034 (v01 Google GOOGRSDT 00000001 GOOG 00000001) [ 0.000000] ACPI: FACP 0x00000000BFFFFF00 0000F4 (v02 Google GOOGFACP 00000001 GOOG 00000001) [ 0.000000] ACPI: DSDT 0x00000000BFFFDCB0 0017B2 (v01 Google GOOGDSDT 00000001 GOOG 00000001) [ 0.000000] ACPI: FACS 0x00000000BFFFFEC0 000040 [ 0.000000] ACPI: FACS 0x00000000BFFFFEC0 000040 [ 0.000000] ACPI: SSDT 0x00000000BFFFF590 000930 (v01 Google GOOGSSDT 00000001 GOOG 00000001) [ 0.000000] ACPI: APIC 0x00000000BFFFF4A0 000076 (v01 Google GOOGAPIC 00000001 GOOG 00000001) [ 0.000000] ACPI: WAET 0x00000000BFFFF470 000028 (v01 Google GOOGWAET 00000001 GOOG 00000001) [ 0.000000] kvm-clock: Using msrs 4b564d01 and 4b564d00 [ 0.000000] kvm-clock: cpu 0, msr 2:1fffd001, primary cpu clock [ 0.000000] kvm-clock: using sched offset of 1281124338 cycles [ 0.000000] clocksource: kvm-clock: mask: 0xffffffffffffffff max_cycles: 0x1cd42e4dffb, max_idle_ns: 881590591483 ns [ 0.000000] Zone ranges: [ 0.000000] DMA [mem 0x0000000000001000-0x0000000000ffffff] [ 0.000000] DMA32 [mem 0x0000000001000000-0x00000000ffffffff] [ 0.000000] Normal [mem 0x0000000100000000-0x000000021fffffff] [ 0.000000] Movable zone start for each node [ 0.000000] Early memory node ranges [ 0.000000] node 0: [mem 0x0000000000001000-0x000000000009efff] [ 0.000000] node 0: [mem 0x0000000000100000-0x00000000bfffcfff] [ 0.000000] node 0: [mem 0x0000000100000000-0x000000021fffffff] [ 0.000000] Initmem setup node 0 [mem 0x0000000000001000-0x000000021fffffff] [ 0.000000] kasan: KernelAddressSanitizer initialized [ 0.000000] ACPI: PM-Timer IO Port: 0xb008 [ 0.000000] ACPI: LAPIC_NMI (acpi_id[0xff] dfl dfl lint[0x1]) [ 0.000000] IOAPIC[0]: apic_id 0, version 17, address 0xfec00000, GSI 0-23 [ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 5 global_irq 5 high level) [ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 9 global_irq 9 high level) [ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 10 global_irq 10 high level) [ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 11 global_irq 11 high level) [ 0.000000] Using ACPI (MADT) for SMP configuration information [ 0.000000] smpboot: Allowing 2 CPUs, 0 hotplug CPUs [ 0.000000] PM: Registered nosave memory: [mem 0x00000000-0x00000fff] [ 0.000000] PM: Registered nosave memory: [mem 0x0009f000-0x0009ffff] [ 0.000000] PM: Registered nosave memory: [mem 0x000a0000-0x000effff] [ 0.000000] PM: Registered nosave memory: [mem 0x000f0000-0x000fffff] [ 0.000000] PM: Registered nosave memory: [mem 0xbfffd000-0xbfffffff] [ 0.000000] PM: Registered nosave memory: [mem 0xc0000000-0xfffbbfff] [ 0.000000] PM: Registered nosave memory: [mem 0xfffbc000-0xffffffff] [ 0.000000] e820: [mem 0xc0000000-0xfffbbfff] available for PCI devices [ 0.000000] Booting paravirtualized kernel on KVM [ 0.000000] clocksource: refined-jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604462750000 ns [ 0.000000] setup_percpu: NR_CPUS:64 nr_cpumask_bits:64 nr_cpu_ids:2 nr_node_ids:1 [ 0.000000] PERCPU: Embedded 42 pages/cpu @ffff8801db200000 s132680 r8192 d31160 u1048576 [ 0.000000] Built 1 zonelists in Zone order, mobility grouping on. Total pages: 1935238 [ 0.000000] Kernel command line: BOOT_IMAGE=/vmlinuz root=/dev/sda1 console=ttyS0 earlyprintk=serial vsyscall=native rodata=n ftrace_dump_on_oops=orig_cpu oops=panic panic_on_warn=1 nmi_watchdog=panic panic=86400 workqueue.watchdog_thresh=120 [ 0.000000] PID hash table entries: 4096 (order: 3, 32768 bytes) [ 0.000000] Dentry cache hash table entries: 1048576 (order: 11, 8388608 bytes) [ 0.000000] Inode-cache hash table entries: 524288 (order: 10, 4194304 bytes) [ 0.000000] ================================================================== [ 0.000000] BUG: KASAN: stack-out-of-bounds in reserve_bootmem_region+0xdf/0x130 [ 0.000000] Write of size 8 at addr ffffea0000047ce0 by task swapper/0 [ 0.000000] [ 0.000000] CPU: 0 PID: 0 Comm: swapper Not tainted 4.4.108-g55b3b8c #7 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 73ea8a9884f1d918 ffffffff84207ce8 ffffffff81d02e5d [ 0.000000] ffffea0000047ce0 ffffea0000047ce0 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d20 ffffffff814fb329 ffffea0000047ce0 [ 0.000000] Call Trace: [ 0.000000] [] dump_stack+0xc1/0x124 [ 0.000000] [] print_address_description+0x189/0x260 [ 0.000000] [] kasan_report+0x285/0x370 [ 0.000000] [] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] free_all_bootmem+0xf2/0x24d [ 0.000000] [] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [] ? dmar_table_detect+0x60/0x60 [ 0.000000] [] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [] mem_init+0x13/0x74 [ 0.000000] [] start_kernel+0x31d/0x6e9 [ 0.000000] [] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [] x86_64_start_kernel+0x140/0x163 [ 0.000000] [ 0.000000] [ 0.000000] Memory state around the buggy address: [ 0.000000] ffffea0000047b80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ffffea0000047c00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] >ffffea0000047c80: 00 00 00 00 00 00 f1 f1 f1 f1 00 00 f2 f2 00 00 [ 0.000000] ^ [ 0.000000] ffffea0000047d00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ffffea0000047d80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ================================================================== [ 0.000000] Disabling lock debugging due to kernel taint [ 0.000000] Kernel panic - not syncing: panic_on_warn set ... [ 0.000000] [ 0.000000] CPU: 0 PID: 0 Comm: swapper Tainted: G B 4.4.108-g55b3b8c #7 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 73ea8a9884f1d918 ffffffff84207c40 ffffffff81d02e5d [ 0.000000] ffffffff83fb34b5 ffffffff84207d18 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d08 ffffffff81417caa 0000000041b58ab3 [ 0.000000] Call Trace: [ 0.000000] [] dump_stack+0xc1/0x124 [ 0.000000] [] panic+0x1aa/0x388 [ 0.000000] [] ? percpu_up_read.constprop.45+0xe1/0xe1 [ 0.000000] [] kasan_end_report+0x50/0x50 [ 0.000000] [] kasan_report+0x15c/0x370 [ 0.000000] [] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] free_all_bootmem+0xf2/0x24d [ 0.000000] [] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [] ? dmar_table_detect+0x60/0x60 [ 0.000000] [] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [] mem_init+0x13/0x74 [ 0.000000] [] start_kernel+0x31d/0x6e9 [ 0.000000] [] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [] x86_64_start_kernel+0x140/0x163 [ 0.000000] Rebooting in 86400 seconds.. [ 0.000000] ACPI MEMORY or I/O RESET_REG. SeaBIOS (version 1.8.2-20171012_061934-google) Total RAM Size = 0x00000001e0000000 = 7680 MiB CPUs found: 2 Max CPUs supported: 2 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 0x000f3050: PCHS=0/0/0 translation=lba LCHS=520/128/63 s=4194304 Booting from Hard Disk 0... early console in decompress_kernel input_data: 0x00000000039be26e input_len: 0x0000000001424e03 output: 0x0000000001000000 output_len: 0x0000000003dcea40 run_size: 0x0000000005504000 Decompressing Linux... Parsing ELF... done. Booting the kernel. [ 0.000000] Initializing cgroup subsys cpuset [ 0.000000] Initializing cgroup subsys cpu [ 0.000000] Initializing cgroup subsys cpuacct [ 0.000000] Initializing cgroup subsys schedtune [ 0.000000] Linux version 4.4.108-g55b3b8c (syzkaller@ci) (gcc version 7.1.1 20170620 (GCC) ) #7 SMP PREEMPT Fri Dec 29 21:50:38 UTC 2017 [ 0.000000] Command line: BOOT_IMAGE=/vmlinuz root=/dev/sda1 console=ttyS0 earlyprintk=serial vsyscall=native rodata=n ftrace_dump_on_oops=orig_cpu oops=panic panic_on_warn=1 nmi_watchdog=panic panic=86400 workqueue.watchdog_thresh=120 [ 0.000000] KERNEL supported cpus: [ 0.000000] Intel GenuineIntel [ 0.000000] AMD AuthenticAMD [ 0.000000] Centaur CentaurHauls [ 0.000000] x86/fpu: xstate_offset[2]: 576, xstate_sizes[2]: 256 [ 0.000000] x86/fpu: Supporting XSAVE feature 0x01: 'x87 floating point registers' [ 0.000000] x86/fpu: Supporting XSAVE feature 0x02: 'SSE registers' [ 0.000000] x86/fpu: Supporting XSAVE feature 0x04: 'AVX registers' [ 0.000000] x86/fpu: Enabled xstate features 0x7, context size is 832 bytes, using 'standard' format. [ 0.000000] x86/fpu: Using 'eager' FPU context switches. [ 0.000000] e820: BIOS-provided physical RAM map: [ 0.000000] BIOS-e820: [mem 0x0000000000000000-0x000000000009fbff] usable [ 0.000000] BIOS-e820: [mem 0x000000000009fc00-0x000000000009ffff] reserved [ 0.000000] BIOS-e820: [mem 0x00000000000f0000-0x00000000000fffff] reserved [ 0.000000] BIOS-e820: [mem 0x0000000000100000-0x00000000bfffcfff] usable [ 0.000000] BIOS-e820: [mem 0x00000000bfffd000-0x00000000bfffffff] reserved [ 0.000000] BIOS-e820: [mem 0x00000000fffbc000-0x00000000ffffffff] reserved [ 0.000000] BIOS-e820: [mem 0x0000000100000000-0x000000021fffffff] usable [ 0.000000] bootconsole [earlyser0] enabled [ 0.000000] NX (Execute Disable) protection: active [ 0.000000] SMBIOS 2.4 present. [ 0.000000] Hypervisor detected: KVM [ 0.000000] e820: last_pfn = 0x220000 max_arch_pfn = 0x400000000 [ 0.000000] x86/PAT: Configuration [0-7]: WB WC UC- UC WB WC UC- WT [ 0.000000] e820: last_pfn = 0xbfffd max_arch_pfn = 0x400000000 [ 0.000000] found SMP MP-table at [mem 0x000f32c0-0x000f32cf] mapped at [ffff8800000f32c0] [ 0.000000] Scanning 1 areas for low memory corruption [ 0.000000] Using GB pages for direct mapping [ 0.000000] ACPI: Early table checksum verification disabled [ 0.000000] ACPI: RSDP 0x00000000000F3090 000014 (v00 Google) [ 0.000000] ACPI: RSDT 0x00000000BFFFDC70 000034 (v01 Google GOOGRSDT 00000001 GOOG 00000001) [ 0.000000] ACPI: FACP 0x00000000BFFFFF00 0000F4 (v02 Google GOOGFACP 00000001 GOOG 00000001) [ 0.000000] ACPI: DSDT 0x00000000BFFFDCB0 0017B2 (v01 Google GOOGDSDT 00000001 GOOG 00000001) [ 0.000000] ACPI: FACS 0x00000000BFFFFEC0 000040 [ 0.000000] ACPI: FACS 0x00000000BFFFFEC0 000040 [ 0.000000] ACPI: SSDT 0x00000000BFFFF590 000930 (v01 Google GOOGSSDT 00000001 GOOG 00000001) [ 0.000000] ACPI: APIC 0x00000000BFFFF4A0 000076 (v01 Google GOOGAPIC 00000001 GOOG 00000001) [ 0.000000] ACPI: WAET 0x00000000BFFFF470 000028 (v01 Google GOOGWAET 00000001 GOOG 00000001) [ 0.000000] kvm-clock: Using msrs 4b564d01 and 4b564d00 [ 0.000000] kvm-clock: cpu 0, msr 2:1fffd001, primary cpu clock [ 0.000000] kvm-clock: using sched offset of 1215160586 cycles [ 0.000000] clocksource: kvm-clock: mask: 0xffffffffffffffff max_cycles: 0x1cd42e4dffb, max_idle_ns: 881590591483 ns [ 0.000000] Zone ranges: [ 0.000000] DMA [mem 0x0000000000001000-0x0000000000ffffff] [ 0.000000] DMA32 [mem 0x0000000001000000-0x00000000ffffffff] [ 0.000000] Normal [mem 0x0000000100000000-0x000000021fffffff] [ 0.000000] Movable zone start for each node [ 0.000000] Early memory node ranges [ 0.000000] node 0: [mem 0x0000000000001000-0x000000000009efff] [ 0.000000] node 0: [mem 0x0000000000100000-0x00000000bfffcfff] [ 0.000000] node 0: [mem 0x0000000100000000-0x000000021fffffff] [ 0.000000] Initmem setup node 0 [mem 0x0000000000001000-0x000000021fffffff] [ 0.000000] kasan: KernelAddressSanitizer initialized [ 0.000000] ACPI: PM-Timer IO Port: 0xb008 [ 0.000000] ACPI: LAPIC_NMI (acpi_id[0xff] dfl dfl lint[0x1]) [ 0.000000] IOAPIC[0]: apic_id 0, version 17, address 0xfec00000, GSI 0-23 [ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 5 global_irq 5 high level) [ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 9 global_irq 9 high level) [ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 10 global_irq 10 high level) [ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 11 global_irq 11 high level) [ 0.000000] Using ACPI (MADT) for SMP configuration information [ 0.000000] smpboot: Allowing 2 CPUs, 0 hotplug CPUs [ 0.000000] PM: Registered nosave memory: [mem 0x00000000-0x00000fff] [ 0.000000] PM: Registered nosave memory: [mem 0x0009f000-0x0009ffff] [ 0.000000] PM: Registered nosave memory: [mem 0x000a0000-0x000effff] [ 0.000000] PM: Registered nosave memory: [mem 0x000f0000-0x000fffff] [ 0.000000] PM: Registered nosave memory: [mem 0xbfffd000-0xbfffffff] [ 0.000000] PM: Registered nosave memory: [mem 0xc0000000-0xfffbbfff] [ 0.000000] PM: Registered nosave memory: [mem 0xfffbc000-0xffffffff] [ 0.000000] e820: [mem 0xc0000000-0xfffbbfff] available for PCI devices [ 0.000000] Booting paravirtualized kernel on KVM [ 0.000000] clocksource: refined-jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604462750000 ns [ 0.000000] setup_percpu: NR_CPUS:64 nr_cpumask_bits:64 nr_cpu_ids:2 nr_node_ids:1 [ 0.000000] PERCPU: Embedded 42 pages/cpu @ffff8801db200000 s132680 r8192 d31160 u1048576 [ 0.000000] Built 1 zonelists in Zone order, mobility grouping on. Total pages: 1935238 [ 0.000000] Kernel command line: BOOT_IMAGE=/vmlinuz root=/dev/sda1 console=ttyS0 earlyprintk=serial vsyscall=native rodata=n ftrace_dump_on_oops=orig_cpu oops=panic panic_on_warn=1 nmi_watchdog=panic panic=86400 workqueue.watchdog_thresh=120 [ 0.000000] PID hash table entries: 4096 (order: 3, 32768 bytes) [ 0.000000] Dentry cache hash table entries: 1048576 (order: 11, 8388608 bytes) [ 0.000000] Inode-cache hash table entries: 524288 (order: 10, 4194304 bytes) [ 0.000000] ================================================================== [ 0.000000] BUG: KASAN: stack-out-of-bounds in reserve_bootmem_region+0xdf/0x130 [ 0.000000] Write of size 8 at addr ffffea0000047ce0 by task swapper/0 [ 0.000000] [ 0.000000] CPU: 0 PID: 0 Comm: swapper Not tainted 4.4.108-g55b3b8c #7 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 6ae938b57bf08735 ffffffff84207ce8 ffffffff81d02e5d [ 0.000000] ffffea0000047ce0 ffffea0000047ce0 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d20 ffffffff814fb329 ffffea0000047ce0 [ 0.000000] Call Trace: [ 0.000000] [] dump_stack+0xc1/0x124 [ 0.000000] [] print_address_description+0x189/0x260 [ 0.000000] [] kasan_report+0x285/0x370 [ 0.000000] [] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] free_all_bootmem+0xf2/0x24d [ 0.000000] [] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [] ? dmar_table_detect+0x60/0x60 [ 0.000000] [] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [] mem_init+0x13/0x74 [ 0.000000] [] start_kernel+0x31d/0x6e9 [ 0.000000] [] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [] x86_64_start_kernel+0x140/0x163 [ 0.000000] [ 0.000000] [ 0.000000] Memory state around the buggy address: [ 0.000000] ffffea0000047b80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ffffea0000047c00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] >ffffea0000047c80: 00 00 00 00 00 00 f1 f1 f1 f1 00 00 f2 f2 00 00 [ 0.000000] ^ [ 0.000000] ffffea0000047d00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ffffea0000047d80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ================================================================== [ 0.000000] Disabling lock debugging due to kernel taint [ 0.000000] Kernel panic - not syncing: panic_on_warn set ... [ 0.000000] [ 0.000000] CPU: 0 PID: 0 Comm: swapper Tainted: G B 4.4.108-g55b3b8c #7 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 6ae938b57bf08735 ffffffff84207c40 ffffffff81d02e5d [ 0.000000] ffffffff83fb34b5 ffffffff84207d18 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d08 ffffffff81417caa 0000000041b58ab3 [ 0.000000] Call Trace: [ 0.000000] [] dump_stack+0xc1/0x124 [ 0.000000] [] panic+0x1aa/0x388 [ 0.000000] [] ? percpu_up_read.constprop.45+0xe1/0xe1 [ 0.000000] [] kasan_end_report+0x50/0x50 [ 0.000000] [] kasan_report+0x15c/0x370 [ 0.000000] [] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] free_all_bootmem+0xf2/0x24d [ 0.000000] [] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [] ? dmar_table_detect+0x60/0x60 [ 0.000000] [] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [] mem_init+0x13/0x74 [ 0.000000] [] start_kernel+0x31d/0x6e9 [ 0.000000] [] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [] x86_64_start_kernel+0x140/0x163 [ 0.000000] Rebooting in 86400 seconds.. [ 0.000000] ACPI MEMORY or I/O RESET_REG. SeaBIOS (version 1.8.2-20171012_061934-google) Total RAM Size = 0x00000001e0000000 = 7680 MiB CPUs found: 2 Max CPUs supported: 2 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 0x000f3050: PCHS=0/0/0 translation=lba LCHS=520/128/63 s=4194304 Booting from Hard Disk 0... early console in decompress_kernel input_data: 0x00000000039be26e input_len: 0x0000000001424e03 output: 0x0000000001000000 output_len: 0x0000000003dcea40 run_size: 0x0000000005504000 Decompressing Linux... Parsing ELF... done. Booting the kernel. [ 0.000000] Initializing cgroup subsys cpuset [ 0.000000] Initializing cgroup subsys cpu [ 0.000000] Initializing cgroup subsys cpuacct [ 0.000000] Initializing cgroup subsys schedtune [ 0.000000] Linux version 4.4.108-g55b3b8c (syzkaller@ci) (gcc version 7.1.1 20170620 (GCC) ) #7 SMP PREEMPT Fri Dec 29 21:50:38 UTC 2017 [ 0.000000] Command line: BOOT_IMAGE=/vmlinuz root=/dev/sda1 console=ttyS0 earlyprintk=serial vsyscall=native rodata=n ftrace_dump_on_oops=orig_cpu oops=panic panic_on_warn=1 nmi_watchdog=panic panic=86400 workqueue.watchdog_thresh=120 [ 0.000000] KERNEL supported cpus: [ 0.000000] Intel GenuineIntel [ 0.000000] AMD AuthenticAMD [ 0.000000] Centaur CentaurHauls [ 0.000000] x86/fpu: xstate_offset[2]: 576, xstate_sizes[2]: 256 [ 0.000000] x86/fpu: Supporting XSAVE feature 0x01: 'x87 floating point registers' [ 0.000000] x86/fpu: Supporting XSAVE feature 0x02: 'SSE registers' [ 0.000000] x86/fpu: Supporting XSAVE feature 0x04: 'AVX registers' [ 0.000000] x86/fpu: Enabled xstate features 0x7, context size is 832 bytes, using 'standard' format. [ 0.000000] x86/fpu: Using 'eager' FPU context switches. [ 0.000000] e820: BIOS-provided physical RAM map: [ 0.000000] BIOS-e820: [mem 0x0000000000000000-0x000000000009fbff] usable [ 0.000000] BIOS-e820: [mem 0x000000000009fc00-0x000000000009ffff] reserved [ 0.000000] BIOS-e820: [mem 0x00000000000f0000-0x00000000000fffff] reserved [ 0.000000] BIOS-e820: [mem 0x0000000000100000-0x00000000bfffcfff] usable [ 0.000000] BIOS-e820: [mem 0x00000000bfffd000-0x00000000bfffffff] reserved [ 0.000000] BIOS-e820: [mem 0x00000000fffbc000-0x00000000ffffffff] reserved [ 0.000000] BIOS-e820: [mem 0x0000000100000000-0x000000021fffffff] usable [ 0.000000] bootconsole [earlyser0] enabled [ 0.000000] NX (Execute Disable) protection: active [ 0.000000] SMBIOS 2.4 present. [ 0.000000] Hypervisor detected: KVM [ 0.000000] e820: last_pfn = 0x220000 max_arch_pfn = 0x400000000 [ 0.000000] x86/PAT: Configuration [0-7]: WB WC UC- UC WB WC UC- WT [ 0.000000] e820: last_pfn = 0xbfffd max_arch_pfn = 0x400000000 [ 0.000000] found SMP MP-table at [mem 0x000f32c0-0x000f32cf] mapped at [ffff8800000f32c0] [ 0.000000] Scanning 1 areas for low memory corruption [ 0.000000] Using GB pages for direct mapping [ 0.000000] ACPI: Early table checksum verification disabled [ 0.000000] ACPI: RSDP 0x00000000000F3090 000014 (v00 Google) [ 0.000000] ACPI: RSDT 0x00000000BFFFDC70 000034 (v01 Google GOOGRSDT 00000001 GOOG 00000001) [ 0.000000] ACPI: FACP 0x00000000BFFFFF00 0000F4 (v02 Google GOOGFACP 00000001 GOOG 00000001) [ 0.000000] ACPI: DSDT 0x00000000BFFFDCB0 0017B2 (v01 Google GOOGDSDT 00000001 GOOG 00000001) [ 0.000000] ACPI: FACS 0x00000000BFFFFEC0 000040 [ 0.000000] ACPI: FACS 0x00000000BFFFFEC0 000040 [ 0.000000] ACPI: SSDT 0x00000000BFFFF590 000930 (v01 Google GOOGSSDT 00000001 GOOG 00000001) [ 0.000000] ACPI: APIC 0x00000000BFFFF4A0 000076 (v01 Google GOOGAPIC 00000001 GOOG 00000001) [ 0.000000] ACPI: WAET 0x00000000BFFFF470 000028 (v01 Google GOOGWAET 00000001 GOOG 00000001) [ 0.000000] kvm-clock: Using msrs 4b564d01 and 4b564d00 [ 0.000000] kvm-clock: cpu 0, msr 2:1fffd001, primary cpu clock [ 0.000000] kvm-clock: using sched offset of 1211919781 cycles [ 0.000000] clocksource: kvm-clock: mask: 0xffffffffffffffff max_cycles: 0x1cd42e4dffb, max_idle_ns: 881590591483 ns [ 0.000000] Zone ranges: [ 0.000000] DMA [mem 0x0000000000001000-0x0000000000ffffff] [ 0.000000] DMA32 [mem 0x0000000001000000-0x00000000ffffffff] [ 0.000000] Normal [mem 0x0000000100000000-0x000000021fffffff] [ 0.000000] Movable zone start for each node [ 0.000000] Early memory node ranges [ 0.000000] node 0: [mem 0x0000000000001000-0x000000000009efff] [ 0.000000] node 0: [mem 0x0000000000100000-0x00000000bfffcfff] [ 0.000000] node 0: [mem 0x0000000100000000-0x000000021fffffff] [ 0.000000] Initmem setup node 0 [mem 0x0000000000001000-0x000000021fffffff] [ 0.000000] kasan: KernelAddressSanitizer initialized [ 0.000000] ACPI: PM-Timer IO Port: 0xb008 [ 0.000000] ACPI: LAPIC_NMI (acpi_id[0xff] dfl dfl lint[0x1]) [ 0.000000] IOAPIC[0]: apic_id 0, version 17, address 0xfec00000, GSI 0-23 [ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 5 global_irq 5 high level) [ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 9 global_irq 9 high level) [ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 10 global_irq 10 high level) [ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 11 global_irq 11 high level) [ 0.000000] Using ACPI (MADT) for SMP configuration information [ 0.000000] smpboot: Allowing 2 CPUs, 0 hotplug CPUs [ 0.000000] PM: Registered nosave memory: [mem 0x00000000-0x00000fff] [ 0.000000] PM: Registered nosave memory: [mem 0x0009f000-0x0009ffff] [ 0.000000] PM: Registered nosave memory: [mem 0x000a0000-0x000effff] [ 0.000000] PM: Registered nosave memory: [mem 0x000f0000-0x000fffff] [ 0.000000] PM: Registered nosave memory: [mem 0xbfffd000-0xbfffffff] [ 0.000000] PM: Registered nosave memory: [mem 0xc0000000-0xfffbbfff] [ 0.000000] PM: Registered nosave memory: [mem 0xfffbc000-0xffffffff] [ 0.000000] e820: [mem 0xc0000000-0xfffbbfff] available for PCI devices [ 0.000000] Booting paravirtualized kernel on KVM [ 0.000000] clocksource: refined-jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604462750000 ns [ 0.000000] setup_percpu: NR_CPUS:64 nr_cpumask_bits:64 nr_cpu_ids:2 nr_node_ids:1 [ 0.000000] PERCPU: Embedded 42 pages/cpu @ffff8801db200000 s132680 r8192 d31160 u1048576 [ 0.000000] Built 1 zonelists in Zone order, mobility grouping on. Total pages: 1935238 [ 0.000000] Kernel command line: BOOT_IMAGE=/vmlinuz root=/dev/sda1 console=ttyS0 earlyprintk=serial vsyscall=native rodata=n ftrace_dump_on_oops=orig_cpu oops=panic panic_on_warn=1 nmi_watchdog=panic panic=86400 workqueue.watchdog_thresh=120 [ 0.000000] PID hash table entries: 4096 (order: 3, 32768 bytes) [ 0.000000] Dentry cache hash table entries: 1048576 (order: 11, 8388608 bytes) [ 0.000000] Inode-cache hash table entries: 524288 (order: 10, 4194304 bytes) [ 0.000000] ================================================================== [ 0.000000] BUG: KASAN: stack-out-of-bounds in reserve_bootmem_region+0xdf/0x130 [ 0.000000] Write of size 8 at addr ffffea0000047ce0 by task swapper/0 [ 0.000000] [ 0.000000] CPU: 0 PID: 0 Comm: swapper Not tainted 4.4.108-g55b3b8c #7 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 6a68483c7b6f96bc ffffffff84207ce8 ffffffff81d02e5d [ 0.000000] ffffea0000047ce0 ffffea0000047ce0 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d20 ffffffff814fb329 ffffea0000047ce0 [ 0.000000] Call Trace: [ 0.000000] [] dump_stack+0xc1/0x124 [ 0.000000] [] print_address_description+0x189/0x260 [ 0.000000] [] kasan_report+0x285/0x370 [ 0.000000] [] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] free_all_bootmem+0xf2/0x24d [ 0.000000] [] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [] ? dmar_table_detect+0x60/0x60 [ 0.000000] [] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [] mem_init+0x13/0x74 [ 0.000000] [] start_kernel+0x31d/0x6e9 [ 0.000000] [] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [] x86_64_start_kernel+0x140/0x163 [ 0.000000] [ 0.000000] [ 0.000000] Memory state around the buggy address: [ 0.000000] ffffea0000047b80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ffffea0000047c00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] >ffffea0000047c80: 00 00 00 00 00 00 f1 f1 f1 f1 00 00 f2 f2 00 00 [ 0.000000] ^ [ 0.000000] ffffea0000047d00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ffffea0000047d80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ================================================================== [ 0.000000] Disabling lock debugging due to kernel taint [ 0.000000] Kernel panic - not syncing: panic_on_warn set ... [ 0.000000] [ 0.000000] CPU: 0 PID: 0 Comm: swapper Tainted: G B 4.4.108-g55b3b8c #7 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 6a68483c7b6f96bc ffffffff84207c40 ffffffff81d02e5d [ 0.000000] ffffffff83fb34b5 ffffffff84207d18 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d08 ffffffff81417caa 0000000041b58ab3 [ 0.000000] Call Trace: [ 0.000000] [] dump_stack+0xc1/0x124 [ 0.000000] [] panic+0x1aa/0x388 [ 0.000000] [] ? percpu_up_read.constprop.45+0xe1/0xe1 [ 0.000000] [] kasan_end_report+0x50/0x50 [ 0.000000] [] kasan_report+0x15c/0x370 [ 0.000000] [] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] free_all_bootmem+0xf2/0x24d [ 0.000000] [] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [] ? dmar_table_detect+0x60/0x60 [ 0.000000] [] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [] mem_init+0x13/0x74 [ 0.000000] [] start_kernel+0x31d/0x6e9 [ 0.000000] [] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [] x86_64_start_kernel+0x140/0x163 [ 0.000000] Rebooting in 86400 seconds.. [ 0.000000] ACPI MEMORY or I/O RESET_REG. SeaBIOS (version 1.8.2-20171012_061934-google) Total RAM Size = 0x00000001e0000000 = 7680 MiB CPUs found: 2 Max CPUs supported: 2 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 0x000f3050: PCHS=0/0/0 translation=lba LCHS=520/128/63 s=4194304 Booting from Hard Disk 0... early console in decompress_kernel input_data: 0x00000000039be26e input_len: 0x0000000001424e03 output: 0x0000000001000000 output_len: 0x0000000003dcea40 run_size: 0x0000000005504000 Decompressing Linux... Parsing ELF... done. Booting the kernel. [ 0.000000] Initializing cgroup subsys cpuset [ 0.000000] Initializing cgroup subsys cpu [ 0.000000] Initializing cgroup subsys cpuacct [ 0.000000] Initializing cgroup subsys schedtune [ 0.000000] Linux version 4.4.108-g55b3b8c (syzkaller@ci) (gcc version 7.1.1 20170620 (GCC) ) #7 SMP PREEMPT Fri Dec 29 21:50:38 UTC 2017 [ 0.000000] Command line: BOOT_IMAGE=/vmlinuz root=/dev/sda1 console=ttyS0 earlyprintk=serial vsyscall=native rodata=n ftrace_dump_on_oops=orig_cpu oops=panic panic_on_warn=1 nmi_watchdog=panic panic=86400 workqueue.watchdog_thresh=120 [ 0.000000] KERNEL supported cpus: [ 0.000000] Intel GenuineIntel [ 0.000000] AMD AuthenticAMD [ 0.000000] Centaur CentaurHauls [ 0.000000] x86/fpu: xstate_offset[2]: 576, xstate_sizes[2]: 256 [ 0.000000] x86/fpu: Supporting XSAVE feature 0x01: 'x87 floating point registers' [ 0.000000] x86/fpu: Supporting XSAVE feature 0x02: 'SSE registers' [ 0.000000] x86/fpu: Supporting XSAVE feature 0x04: 'AVX registers' [ 0.000000] x86/fpu: Enabled xstate features 0x7, context size is 832 bytes, using 'standard' format. [ 0.000000] x86/fpu: Using 'eager' FPU context switches. [ 0.000000] e820: BIOS-provided physical RAM map: [ 0.000000] BIOS-e820: [mem 0x0000000000000000-0x000000000009fbff] usable [ 0.000000] BIOS-e820: [mem 0x000000000009fc00-0x000000000009ffff] reserved [ 0.000000] BIOS-e820: [mem 0x00000000000f0000-0x00000000000fffff] reserved [ 0.000000] BIOS-e820: [mem 0x0000000000100000-0x00000000bfffcfff] usable [ 0.000000] BIOS-e820: [mem 0x00000000bfffd000-0x00000000bfffffff] reserved [ 0.000000] BIOS-e820: [mem 0x00000000fffbc000-0x00000000ffffffff] reserved [ 0.000000] BIOS-e820: [mem 0x0000000100000000-0x000000021fffffff] usable [ 0.000000] bootconsole [earlyser0] enabled [ 0.000000] NX (Execute Disable) protection: active [ 0.000000] SMBIOS 2.4 present. [ 0.000000] Hypervisor detected: KVM [ 0.000000] e820: last_pfn = 0x220000 max_arch_pfn = 0x400000000 [ 0.000000] x86/PAT: Configuration [0-7]: WB WC UC- UC WB WC UC- WT [ 0.000000] e820: last_pfn = 0xbfffd max_arch_pfn = 0x400000000 [ 0.000000] found SMP MP-table at [mem 0x000f32c0-0x000f32cf] mapped at [ffff8800000f32c0] [ 0.000000] Scanning 1 areas for low memory corruption [ 0.000000] Using GB pages for direct mapping [ 0.000000] ACPI: Early table checksum verification disabled [ 0.000000] ACPI: RSDP 0x00000000000F3090 000014 (v00 Google) [ 0.000000] ACPI: RSDT 0x00000000BFFFDC70 000034 (v01 Google GOOGRSDT 00000001 GOOG 00000001) [ 0.000000] ACPI: FACP 0x00000000BFFFFF00 0000F4 (v02 Google GOOGFACP 00000001 GOOG 00000001) [ 0.000000] ACPI: DSDT 0x00000000BFFFDCB0 0017B2 (v01 Google GOOGDSDT 00000001 GOOG 00000001) [ 0.000000] ACPI: FACS 0x00000000BFFFFEC0 000040 [ 0.000000] ACPI: FACS 0x00000000BFFFFEC0 000040 [ 0.000000] ACPI: SSDT 0x00000000BFFFF590 000930 (v01 Google GOOGSSDT 00000001 GOOG 00000001) [ 0.000000] ACPI: APIC 0x00000000BFFFF4A0 000076 (v01 Google GOOGAPIC 00000001 GOOG 00000001) [ 0.000000] ACPI: WAET 0x00000000BFFFF470 000028 (v01 Google GOOGWAET 00000001 GOOG 00000001) [ 0.000000] kvm-clock: Using msrs 4b564d01 and 4b564d00 [ 0.000000] kvm-clock: cpu 0, msr 2:1fffd001, primary cpu clock [ 0.000000] kvm-clock: using sched offset of 1378218996 cycles [ 0.000000] clocksource: kvm-clock: mask: 0xffffffffffffffff max_cycles: 0x1cd42e4dffb, max_idle_ns: 881590591483 ns [ 0.000000] Zone ranges: [ 0.000000] DMA [mem 0x0000000000001000-0x0000000000ffffff] [ 0.000000] DMA32 [mem 0x0000000001000000-0x00000000ffffffff] [ 0.000000] Normal [mem 0x0000000100000000-0x000000021fffffff] [ 0.000000] Movable zone start for each node [ 0.000000] Early memory node ranges [ 0.000000] node 0: [mem 0x0000000000001000-0x000000000009efff] [ 0.000000] node 0: [mem 0x0000000000100000-0x00000000bfffcfff] [ 0.000000] node 0: [mem 0x0000000100000000-0x000000021fffffff] [ 0.000000] Initmem setup node 0 [mem 0x0000000000001000-0x000000021fffffff] [ 0.000000] kasan: KernelAddressSanitizer initialized [ 0.000000] ACPI: PM-Timer IO Port: 0xb008 [ 0.000000] ACPI: LAPIC_NMI (acpi_id[0xff] dfl dfl lint[0x1]) [ 0.000000] IOAPIC[0]: apic_id 0, version 17, address 0xfec00000, GSI 0-23 [ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 5 global_irq 5 high level) [ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 9 global_irq 9 high level) [ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 10 global_irq 10 high level) [ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 11 global_irq 11 high level) [ 0.000000] Using ACPI (MADT) for SMP configuration information [ 0.000000] smpboot: Allowing 2 CPUs, 0 hotplug CPUs [ 0.000000] PM: Registered nosave memory: [mem 0x00000000-0x00000fff] [ 0.000000] PM: Registered nosave memory: [mem 0x0009f000-0x0009ffff] [ 0.000000] PM: Registered nosave memory: [mem 0x000a0000-0x000effff] [ 0.000000] PM: Registered nosave memory: [mem 0x000f0000-0x000fffff] [ 0.000000] PM: Registered nosave memory: [mem 0xbfffd000-0xbfffffff] [ 0.000000] PM: Registered nosave memory: [mem 0xc0000000-0xfffbbfff] [ 0.000000] PM: Registered nosave memory: [mem 0xfffbc000-0xffffffff] [ 0.000000] e820: [mem 0xc0000000-0xfffbbfff] available for PCI devices [ 0.000000] Booting paravirtualized kernel on KVM [ 0.000000] clocksource: refined-jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604462750000 ns [ 0.000000] setup_percpu: NR_CPUS:64 nr_cpumask_bits:64 nr_cpu_ids:2 nr_node_ids:1 [ 0.000000] PERCPU: Embedded 42 pages/cpu @ffff8801db200000 s132680 r8192 d31160 u1048576 [ 0.000000] Built 1 zonelists in Zone order, mobility grouping on. Total pages: 1935238 [ 0.000000] Kernel command line: BOOT_IMAGE=/vmlinuz root=/dev/sda1 console=ttyS0 earlyprintk=serial vsyscall=native rodata=n ftrace_dump_on_oops=orig_cpu oops=panic panic_on_warn=1 nmi_watchdog=panic panic=86400 workqueue.watchdog_thresh=120 [ 0.000000] PID hash table entries: 4096 (order: 3, 32768 bytes) [ 0.000000] Dentry cache hash table entries: 1048576 (order: 11, 8388608 bytes) [ 0.000000] Inode-cache hash table entries: 524288 (order: 10, 4194304 bytes) [ 0.000000] ================================================================== [ 0.000000] BUG: KASAN: stack-out-of-bounds in reserve_bootmem_region+0xdf/0x130 [ 0.000000] Write of size 8 at addr ffffea0000047ce0 by task swapper/0 [ 0.000000] [ 0.000000] CPU: 0 PID: 0 Comm: swapper Not tainted 4.4.108-g55b3b8c #7 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 814ac40f9252128f ffffffff84207ce8 ffffffff81d02e5d [ 0.000000] ffffea0000047ce0 ffffea0000047ce0 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d20 ffffffff814fb329 ffffea0000047ce0 [ 0.000000] Call Trace: [ 0.000000] [] dump_stack+0xc1/0x124 [ 0.000000] [] print_address_description+0x189/0x260 [ 0.000000] [] kasan_report+0x285/0x370 [ 0.000000] [] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] free_all_bootmem+0xf2/0x24d [ 0.000000] [] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [] ? dmar_table_detect+0x60/0x60 [ 0.000000] [] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [] mem_init+0x13/0x74 [ 0.000000] [] start_kernel+0x31d/0x6e9 [ 0.000000] [] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [] x86_64_start_kernel+0x140/0x163 [ 0.000000] [ 0.000000] [ 0.000000] Memory state around the buggy address: [ 0.000000] ffffea0000047b80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ffffea0000047c00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] >ffffea0000047c80: 00 00 00 00 00 00 f1 f1 f1 f1 00 00 f2 f2 00 00 [ 0.000000] ^ [ 0.000000] ffffea0000047d00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ffffea0000047d80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ================================================================== [ 0.000000] Disabling lock debugging due to kernel taint [ 0.000000] Kernel panic - not syncing: panic_on_warn set ... [ 0.000000] [ 0.000000] CPU: 0 PID: 0 Comm: swapper Tainted: G B 4.4.108-g55b3b8c #7 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 814ac40f9252128f ffffffff84207c40 ffffffff81d02e5d [ 0.000000] ffffffff83fb34b5 ffffffff84207d18 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d08 ffffffff81417caa 0000000041b58ab3 [ 0.000000] Call Trace: [ 0.000000] [] dump_stack+0xc1/0x124 [ 0.000000] [] panic+0x1aa/0x388 [ 0.000000] [] ? percpu_up_read.constprop.45+0xe1/0xe1 [ 0.000000] [] kasan_end_report+0x50/0x50 [ 0.000000] [] kasan_report+0x15c/0x370 [ 0.000000] [] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] free_all_bootmem+0xf2/0x24d [ 0.000000] [] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [] ? dmar_table_detect+0x60/0x60 [ 0.000000] [] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [] mem_init+0x13/0x74 [ 0.000000] [] start_kernel+0x31d/0x6e9 [ 0.000000] [] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [] x86_64_start_kernel+0x140/0x163 [ 0.000000] Rebooting in 86400 seconds.. [ 0.000000] ACPI MEMORY or I/O RESET_REG. SeaBIOS (version 1.8.2-20171012_061934-google) Total RAM Size = 0x00000001e0000000 = 7680 MiB CPUs found: 2 Max CPUs supported: 2 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 0x000f3050: PCHS=0/0/0 translation=lba LCHS=520/128/63 s=4194304 Booting from Hard Disk 0... early console in decompress_kernel input_data: 0x00000000039be26e input_len: 0x0000000001424e03 output: 0x0000000001000000 output_len: 0x0000000003dcea40 run_size: 0x0000000005504000 Decompressing Linux... Parsing ELF... done. Booting the kernel. [ 0.000000] Initializing cgroup subsys cpuset [ 0.000000] Initializing cgroup subsys cpu [ 0.000000] Initializing cgroup subsys cpuacct [ 0.000000] Initializing cgroup subsys schedtune [ 0.000000] Linux version 4.4.108-g55b3b8c (syzkaller@ci) (gcc version 7.1.1 20170620 (GCC) ) #7 SMP PREEMPT Fri Dec 29 21:50:38 UTC 2017 [ 0.000000] Command line: BOOT_IMAGE=/vmlinuz root=/dev/sda1 console=ttyS0 earlyprintk=serial vsyscall=native rodata=n ftrace_dump_on_oops=orig_cpu oops=panic panic_on_warn=1 nmi_watchdog=panic panic=86400 workqueue.watchdog_thresh=120 [ 0.000000] KERNEL supported cpus: [ 0.000000] Intel GenuineIntel [ 0.000000] AMD AuthenticAMD [ 0.000000] Centaur CentaurHauls [ 0.000000] x86/fpu: xstate_offset[2]: 576, xstate_sizes[2]: 256 [ 0.000000] x86/fpu: Supporting XSAVE feature 0x01: 'x87 floating point registers' [ 0.000000] x86/fpu: Supporting XSAVE feature 0x02: 'SSE registers' [ 0.000000] x86/fpu: Supporting XSAVE feature 0x04: 'AVX registers' [ 0.000000] x86/fpu: Enabled xstate features 0x7, context size is 832 bytes, using 'standard' format. [ 0.000000] x86/fpu: Using 'eager' FPU context switches. [ 0.000000] e820: BIOS-provided physical RAM map: [ 0.000000] BIOS-e820: [mem 0x0000000000000000-0x000000000009fbff] usable [ 0.000000] BIOS-e820: [mem 0x000000000009fc00-0x000000000009ffff] reserved [ 0.000000] BIOS-e820: [mem 0x00000000000f0000-0x00000000000fffff] reserved [ 0.000000] BIOS-e820: [mem 0x0000000000100000-0x00000000bfffcfff] usable [ 0.000000] BIOS-e820: [mem 0x00000000bfffd000-0x00000000bfffffff] reserved [ 0.000000] BIOS-e820: [mem 0x00000000fffbc000-0x00000000ffffffff] reserved [ 0.000000] BIOS-e820: [mem 0x0000000100000000-0x000000021fffffff] usable [ 0.000000] bootconsole [earlyser0] enabled [ 0.000000] NX (Execute Disable) protection: active [ 0.000000] SMBIOS 2.4 present. [ 0.000000] Hypervisor detected: KVM [ 0.000000] e820: last_pfn = 0x220000 max_arch_pfn = 0x400000000 [ 0.000000] x86/PAT: Configuration [0-7]: WB WC UC- UC WB WC UC- WT [ 0.000000] e820: last_pfn = 0xbfffd max_arch_pfn = 0x400000000 [ 0.000000] found SMP MP-table at [mem 0x000f32c0-0x000f32cf] mapped at [ffff8800000f32c0] [ 0.000000] Scanning 1 areas for low memory corruption [ 0.000000] Using GB pages for direct mapping [ 0.000000] ACPI: Early table checksum verification disabled [ 0.000000] ACPI: RSDP 0x00000000000F3090 000014 (v00 Google) [ 0.000000] ACPI: RSDT 0x00000000BFFFDC70 000034 (v01 Google GOOGRSDT 00000001 GOOG 00000001) [ 0.000000] ACPI: FACP 0x00000000BFFFFF00 0000F4 (v02 Google GOOGFACP 00000001 GOOG 00000001) [ 0.000000] ACPI: DSDT 0x00000000BFFFDCB0 0017B2 (v01 Google GOOGDSDT 00000001 GOOG 00000001) [ 0.000000] ACPI: FACS 0x00000000BFFFFEC0 000040 [ 0.000000] ACPI: FACS 0x00000000BFFFFEC0 000040 [ 0.000000] ACPI: SSDT 0x00000000BFFFF590 000930 (v01 Google GOOGSSDT 00000001 GOOG 00000001) [ 0.000000] ACPI: APIC 0x00000000BFFFF4A0 000076 (v01 Google GOOGAPIC 00000001 GOOG 00000001) [ 0.000000] ACPI: WAET 0x00000000BFFFF470 000028 (v01 Google GOOGWAET 00000001 GOOG 00000001) [ 0.000000] kvm-clock: Using msrs 4b564d01 and 4b564d00 [ 0.000000] kvm-clock: cpu 0, msr 2:1fffd001, primary cpu clock [ 0.000000] kvm-clock: using sched offset of 1150933883 cycles [ 0.000000] clocksource: kvm-clock: mask: 0xffffffffffffffff max_cycles: 0x1cd42e4dffb, max_idle_ns: 881590591483 ns [ 0.000000] Zone ranges: [ 0.000000] DMA [mem 0x0000000000001000-0x0000000000ffffff] [ 0.000000] DMA32 [mem 0x0000000001000000-0x00000000ffffffff] [ 0.000000] Normal [mem 0x0000000100000000-0x000000021fffffff] [ 0.000000] Movable zone start for each node [ 0.000000] Early memory node ranges [ 0.000000] node 0: [mem 0x0000000000001000-0x000000000009efff] [ 0.000000] node 0: [mem 0x0000000000100000-0x00000000bfffcfff] [ 0.000000] node 0: [mem 0x0000000100000000-0x000000021fffffff] [ 0.000000] Initmem setup node 0 [mem 0x0000000000001000-0x000000021fffffff] [ 0.000000] kasan: KernelAddressSanitizer initialized [ 0.000000] ACPI: PM-Timer IO Port: 0xb008 [ 0.000000] ACPI: LAPIC_NMI (acpi_id[0xff] dfl dfl lint[0x1]) [ 0.000000] IOAPIC[0]: apic_id 0, version 17, address 0xfec00000, GSI 0-23 [ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 5 global_irq 5 high level) [ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 9 global_irq 9 high level) [ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 10 global_irq 10 high level) [ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 11 global_irq 11 high level) [ 0.000000] Using ACPI (MADT) for SMP configuration information [ 0.000000] smpboot: Allowing 2 CPUs, 0 hotplug CPUs [ 0.000000] PM: Registered nosave memory: [mem 0x00000000-0x00000fff] [ 0.000000] PM: Registered nosave memory: [mem 0x0009f000-0x0009ffff] [ 0.000000] PM: Registered nosave memory: [mem 0x000a0000-0x000effff] [ 0.000000] PM: Registered nosave memory: [mem 0x000f0000-0x000fffff] [ 0.000000] PM: Registered nosave memory: [mem 0xbfffd000-0xbfffffff] [ 0.000000] PM: Registered nosave memory: [mem 0xc0000000-0xfffbbfff] [ 0.000000] PM: Registered nosave memory: [mem 0xfffbc000-0xffffffff] [ 0.000000] e820: [mem 0xc0000000-0xfffbbfff] available for PCI devices [ 0.000000] Booting paravirtualized kernel on KVM [ 0.000000] clocksource: refined-jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604462750000 ns [ 0.000000] setup_percpu: NR_CPUS:64 nr_cpumask_bits:64 nr_cpu_ids:2 nr_node_ids:1 [ 0.000000] PERCPU: Embedded 42 pages/cpu @ffff8801db200000 s132680 r8192 d31160 u1048576 [ 0.000000] Built 1 zonelists in Zone order, mobility grouping on. Total pages: 1935238 [ 0.000000] Kernel command line: BOOT_IMAGE=/vmlinuz root=/dev/sda1 console=ttyS0 earlyprintk=serial vsyscall=native rodata=n ftrace_dump_on_oops=orig_cpu oops=panic panic_on_warn=1 nmi_watchdog=panic panic=86400 workqueue.watchdog_thresh=120 [ 0.000000] PID hash table entries: 4096 (order: 3, 32768 bytes) [ 0.000000] Dentry cache hash table entries: 1048576 (order: 11, 8388608 bytes) [ 0.000000] Inode-cache hash table entries: 524288 (order: 10, 4194304 bytes) [ 0.000000] ================================================================== [ 0.000000] BUG: KASAN: stack-out-of-bounds in reserve_bootmem_region+0xdf/0x130 [ 0.000000] Write of size 8 at addr ffffea0000047ce0 by task swapper/0 [ 0.000000] [ 0.000000] CPU: 0 PID: 0 Comm: swapper Not tainted 4.4.108-g55b3b8c #7 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 61d23c7f72d98aff ffffffff84207ce8 ffffffff81d02e5d [ 0.000000] ffffea0000047ce0 ffffea0000047ce0 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d20 ffffffff814fb329 ffffea0000047ce0 [ 0.000000] Call Trace: [ 0.000000] [] dump_stack+0xc1/0x124 [ 0.000000] [] print_address_description+0x189/0x260 [ 0.000000] [] kasan_report+0x285/0x370 [ 0.000000] [] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] free_all_bootmem+0xf2/0x24d [ 0.000000] [] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [] ? dmar_table_detect+0x60/0x60 [ 0.000000] [] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [] mem_init+0x13/0x74 [ 0.000000] [] start_kernel+0x31d/0x6e9 [ 0.000000] [] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [] x86_64_start_kernel+0x140/0x163 [ 0.000000] [ 0.000000] [ 0.000000] Memory state around the buggy address: [ 0.000000] ffffea0000047b80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ffffea0000047c00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] >ffffea0000047c80: 00 00 00 00 00 00 f1 f1 f1 f1 00 00 f2 f2 00 00 [ 0.000000] ^ [ 0.000000] ffffea0000047d00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ffffea0000047d80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ================================================================== [ 0.000000] Disabling lock debugging due to kernel taint [ 0.000000] Kernel panic - not syncing: panic_on_warn set ... [ 0.000000] [ 0.000000] CPU: 0 PID: 0 Comm: swapper Tainted: G B 4.4.108-g55b3b8c #7 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 61d23c7f72d98aff ffffffff84207c40 ffffffff81d02e5d [ 0.000000] ffffffff83fb34b5 ffffffff84207d18 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d08 ffffffff81417caa 0000000041b58ab3 [ 0.000000] Call Trace: [ 0.000000] [] dump_stack+0xc1/0x124 [ 0.000000] [] panic+0x1aa/0x388 [ 0.000000] [] ? percpu_up_read.constprop.45+0xe1/0xe1 [ 0.000000] [] kasan_end_report+0x50/0x50 [ 0.000000] [] kasan_report+0x15c/0x370 [ 0.000000] [] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] free_all_bootmem+0xf2/0x24d [ 0.000000] [] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [] ? dmar_table_detect+0x60/0x60 [ 0.000000] [] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [] mem_init+0x13/0x74 [ 0.000000] [] start_kernel+0x31d/0x6e9 [ 0.000000] [] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [] x86_64_start_kernel+0x140/0x163 [ 0.000000] Rebooting in 86400 seconds.. [ 0.000000] ACPI MEMORY or I/O RESET_REG. SeaBIOS (version 1.8.2-20171012_061934-google) Total RAM Size = 0x00000001e0000000 = 7680 MiB CPUs found: 2 Max CPUs supported: 2 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 0x000f3050: PCHS=0/0/0 translation=lba LCHS=520/128/63 s=4194304 Booting from Hard Disk 0... early console in decompress_kernel input_data: 0x00000000039be26e input_len: 0x0000000001424e03 output: 0x0000000001000000 output_len: 0x0000000003dcea40 run_size: 0x0000000005504000 Decompressing Linux... Parsing ELF... done. Booting the kernel. [ 0.000000] Initializing cgroup subsys cpuset [ 0.000000] Initializing cgroup subsys cpu [ 0.000000] Initializing cgroup subsys cpuacct [ 0.000000] Initializing cgroup subsys schedtune [ 0.000000] Linux version 4.4.108-g55b3b8c (syzkaller@ci) (gcc version 7.1.1 20170620 (GCC) ) #7 SMP PREEMPT Fri Dec 29 21:50:38 UTC 2017 [ 0.000000] Command line: BOOT_IMAGE=/vmlinuz root=/dev/sda1 console=ttyS0 earlyprintk=serial vsyscall=native rodata=n ftrace_dump_on_oops=orig_cpu oops=panic panic_on_warn=1 nmi_watchdog=panic panic=86400 workqueue.watchdog_thresh=120 [ 0.000000] KERNEL supported cpus: [ 0.000000] Intel GenuineIntel [ 0.000000] AMD AuthenticAMD [ 0.000000] Centaur CentaurHauls [ 0.000000] x86/fpu: xstate_offset[2]: 576, xstate_sizes[2]: 256 [ 0.000000] x86/fpu: Supporting XSAVE feature 0x01: 'x87 floating point registers' [ 0.000000] x86/fpu: Supporting XSAVE feature 0x02: 'SSE registers' [ 0.000000] x86/fpu: Supporting XSAVE feature 0x04: 'AVX registers' [ 0.000000] x86/fpu: Enabled xstate features 0x7, context size is 832 bytes, using 'standard' format. [ 0.000000] x86/fpu: Using 'eager' FPU context switches. [ 0.000000] e820: BIOS-provided physical RAM map: [ 0.000000] BIOS-e820: [mem 0x0000000000000000-0x000000000009fbff] usable [ 0.000000] BIOS-e820: [mem 0x000000000009fc00-0x000000000009ffff] reserved [ 0.000000] BIOS-e820: [mem 0x00000000000f0000-0x00000000000fffff] reserved [ 0.000000] BIOS-e820: [mem 0x0000000000100000-0x00000000bfffcfff] usable [ 0.000000] BIOS-e820: [mem 0x00000000bfffd000-0x00000000bfffffff] reserved [ 0.000000] BIOS-e820: [mem 0x00000000fffbc000-0x00000000ffffffff] reserved [ 0.000000] BIOS-e820: [mem 0x0000000100000000-0x000000021fffffff] usable [ 0.000000] bootconsole [earlyser0] enabled [ 0.000000] NX (Execute Disable) protection: active [ 0.000000] SMBIOS 2.4 present. [ 0.000000] Hypervisor detected: KVM [ 0.000000] e820: last_pfn = 0x220000 max_arch_pfn = 0x400000000 [ 0.000000] x86/PAT: Configuration [0-7]: WB WC UC- UC WB WC UC- WT [ 0.000000] e820: last_pfn = 0xbfffd max_arch_pfn = 0x400000000 [ 0.000000] found SMP MP-table at [mem 0x000f32c0-0x000f32cf] mapped at [ffff8800000f32c0] [ 0.000000] Scanning 1 areas for low memory corruption [ 0.000000] Using GB pages for direct mapping [ 0.000000] ACPI: Early table checksum verification disabled [ 0.000000] ACPI: RSDP 0x00000000000F3090 000014 (v00 Google) [ 0.000000] ACPI: RSDT 0x00000000BFFFDC70 000034 (v01 Google GOOGRSDT 00000001 GOOG 00000001) [ 0.000000] ACPI: FACP 0x00000000BFFFFF00 0000F4 (v02 Google GOOGFACP 00000001 GOOG 00000001) [ 0.000000] ACPI: DSDT 0x00000000BFFFDCB0 0017B2 (v01 Google GOOGDSDT 00000001 GOOG 00000001) [ 0.000000] ACPI: FACS 0x00000000BFFFFEC0 000040 [ 0.000000] ACPI: FACS 0x00000000BFFFFEC0 000040 [ 0.000000] ACPI: SSDT 0x00000000BFFFF590 000930 (v01 Google GOOGSSDT 00000001 GOOG 00000001) [ 0.000000] ACPI: APIC 0x00000000BFFFF4A0 000076 (v01 Google GOOGAPIC 00000001 GOOG 00000001) [ 0.000000] ACPI: WAET 0x00000000BFFFF470 000028 (v01 Google GOOGWAET 00000001 GOOG 00000001) [ 0.000000] kvm-clock: Using msrs 4b564d01 and 4b564d00 [ 0.000000] kvm-clock: cpu 0, msr 2:1fffd001, primary cpu clock [ 0.000000] kvm-clock: using sched offset of 1247369719 cycles [ 0.000000] clocksource: kvm-clock: mask: 0xffffffffffffffff max_cycles: 0x1cd42e4dffb, max_idle_ns: 881590591483 ns [ 0.000000] Zone ranges: [ 0.000000] DMA [mem 0x0000000000001000-0x0000000000ffffff] [ 0.000000] DMA32 [mem 0x0000000001000000-0x00000000ffffffff] [ 0.000000] Normal [mem 0x0000000100000000-0x000000021fffffff] [ 0.000000] Movable zone start for each node [ 0.000000] Early memory node ranges [ 0.000000] node 0: [mem 0x0000000000001000-0x000000000009efff] [ 0.000000] node 0: [mem 0x0000000000100000-0x00000000bfffcfff] [ 0.000000] node 0: [mem 0x0000000100000000-0x000000021fffffff] [ 0.000000] Initmem setup node 0 [mem 0x0000000000001000-0x000000021fffffff] [ 0.000000] kasan: KernelAddressSanitizer initialized [ 0.000000] ACPI: PM-Timer IO Port: 0xb008 [ 0.000000] ACPI: LAPIC_NMI (acpi_id[0xff] dfl dfl lint[0x1]) [ 0.000000] IOAPIC[0]: apic_id 0, version 17, address 0xfec00000, GSI 0-23 [ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 5 global_irq 5 high level) [ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 9 global_irq 9 high level) [ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 10 global_irq 10 high level) [ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 11 global_irq 11 high level) [ 0.000000] Using ACPI (MADT) for SMP configuration information [ 0.000000] smpboot: Allowing 2 CPUs, 0 hotplug CPUs [ 0.000000] PM: Registered nosave memory: [mem 0x00000000-0x00000fff] [ 0.000000] PM: Registered nosave memory: [mem 0x0009f000-0x0009ffff] [ 0.000000] PM: Registered nosave memory: [mem 0x000a0000-0x000effff] [ 0.000000] PM: Registered nosave memory: [mem 0x000f0000-0x000fffff] [ 0.000000] PM: Registered nosave memory: [mem 0xbfffd000-0xbfffffff] [ 0.000000] PM: Registered nosave memory: [mem 0xc0000000-0xfffbbfff] [ 0.000000] PM: Registered nosave memory: [mem 0xfffbc000-0xffffffff] [ 0.000000] e820: [mem 0xc0000000-0xfffbbfff] available for PCI devices [ 0.000000] Booting paravirtualized kernel on KVM [ 0.000000] clocksource: refined-jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604462750000 ns [ 0.000000] setup_percpu: NR_CPUS:64 nr_cpumask_bits:64 nr_cpu_ids:2 nr_node_ids:1 [ 0.000000] PERCPU: Embedded 42 pages/cpu @ffff8801db200000 s132680 r8192 d31160 u1048576 [ 0.000000] Built 1 zonelists in Zone order, mobility grouping on. Total pages: 1935238 [ 0.000000] Kernel command line: BOOT_IMAGE=/vmlinuz root=/dev/sda1 console=ttyS0 earlyprintk=serial vsyscall=native rodata=n ftrace_dump_on_oops=orig_cpu oops=panic panic_on_warn=1 nmi_watchdog=panic panic=86400 workqueue.watchdog_thresh=120 [ 0.000000] PID hash table entries: 4096 (order: 3, 32768 bytes) [ 0.000000] Dentry cache hash table entries: 1048576 (order: 11, 8388608 bytes) [ 0.000000] Inode-cache hash table entries: 524288 (order: 10, 4194304 bytes) [ 0.000000] ================================================================== [ 0.000000] BUG: KASAN: stack-out-of-bounds in reserve_bootmem_region+0xdf/0x130 [ 0.000000] Write of size 8 at addr ffffea0000047ce0 by task swapper/0 [ 0.000000] [ 0.000000] CPU: 0 PID: 0 Comm: swapper Not tainted 4.4.108-g55b3b8c #7 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 6f4221d480497054 ffffffff84207ce8 ffffffff81d02e5d [ 0.000000] ffffea0000047ce0 ffffea0000047ce0 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d20 ffffffff814fb329 ffffea0000047ce0 [ 0.000000] Call Trace: [ 0.000000] [] dump_stack+0xc1/0x124 [ 0.000000] [] print_address_description+0x189/0x260 [ 0.000000] [] kasan_report+0x285/0x370 [ 0.000000] [] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] free_all_bootmem+0xf2/0x24d [ 0.000000] [] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [] ? dmar_table_detect+0x60/0x60 [ 0.000000] [] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [] mem_init+0x13/0x74 [ 0.000000] [] start_kernel+0x31d/0x6e9 [ 0.000000] [] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [] x86_64_start_kernel+0x140/0x163 [ 0.000000] [ 0.000000] [ 0.000000] Memory state around the buggy address: [ 0.000000] ffffea0000047b80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ffffea0000047c00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] >ffffea0000047c80: 00 00 00 00 00 00 f1 f1 f1 f1 00 00 f2 f2 00 00 [ 0.000000] ^ [ 0.000000] ffffea0000047d00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ffffea0000047d80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ================================================================== [ 0.000000] Disabling lock debugging due to kernel taint [ 0.000000] Kernel panic - not syncing: panic_on_warn set ... [ 0.000000] [ 0.000000] CPU: 0 PID: 0 Comm: swapper Tainted: G B 4.4.108-g55b3b8c #7 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 6f4221d480497054 ffffffff84207c40 ffffffff81d02e5d [ 0.000000] ffffffff83fb34b5 ffffffff84207d18 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d08 ffffffff81417caa 0000000041b58ab3 [ 0.000000] Call Trace: [ 0.000000] [] dump_stack+0xc1/0x124 [ 0.000000] [] panic+0x1aa/0x388 [ 0.000000] [] ? percpu_up_read.constprop.45+0xe1/0xe1 [ 0.000000] [] kasan_end_report+0x50/0x50 [ 0.000000] [] kasan_report+0x15c/0x370 [ 0.000000] [] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] free_all_bootmem+0xf2/0x24d [ 0.000000] [] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [] ? dmar_table_detect+0x60/0x60 [ 0.000000] [] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [] mem_init+0x13/0x74 [ 0.000000] [] start_kernel+0x31d/0x6e9 [ 0.000000] [] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [] x86_64_start_kernel+0x140/0x163 [ 0.000000] Rebooting in 86400 seconds.. [ 0.000000] ACPI MEMORY or I/O RESET_REG. SeaBIOS (version 1.8.2-20171012_061934-google) Total RAM Size = 0x00000001e0000000 = 7680 MiB CPUs found: 2 Max CPUs supported: 2 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 0x000f3050: PCHS=0/0/0 translation=lba LCHS=520/128/63 s=4194304 Booting from Hard Disk 0... early console in decompress_kernel input_data: 0x00000000039be26e input_len: 0x0000000001424e03 output: 0x0000000001000000 output_len: 0x0000000003dcea40 run_size: 0x0000000005504000 Decompressing Linux... Parsing ELF... done. Booting the kernel. [ 0.000000] Initializing cgroup subsys cpuset [ 0.000000] Initializing cgroup subsys cpu [ 0.000000] Initializing cgroup subsys cpuacct [ 0.000000] Initializing cgroup subsys schedtune [ 0.000000] Linux version 4.4.108-g55b3b8c (syzkaller@ci) (gcc version 7.1.1 20170620 (GCC) ) #7 SMP PREEMPT Fri Dec 29 21:50:38 UTC 2017 [ 0.000000] Command line: BOOT_IMAGE=/vmlinuz root=/dev/sda1 console=ttyS0 earlyprintk=serial vsyscall=native rodata=n ftrace_dump_on_oops=orig_cpu oops=panic panic_on_warn=1 nmi_watchdog=panic panic=86400 workqueue.watchdog_thresh=120 [ 0.000000] KERNEL supported cpus: [ 0.000000] Intel GenuineIntel [ 0.000000] AMD AuthenticAMD [ 0.000000] Centaur CentaurHauls [ 0.000000] x86/fpu: xstate_offset[2]: 576, xstate_sizes[2]: 256 [ 0.000000] x86/fpu: Supporting XSAVE feature 0x01: 'x87 floating point registers' [ 0.000000] x86/fpu: Supporting XSAVE feature 0x02: 'SSE registers' [ 0.000000] x86/fpu: Supporting XSAVE feature 0x04: 'AVX registers' [ 0.000000] x86/fpu: Enabled xstate features 0x7, context size is 832 bytes, using 'standard' format. [ 0.000000] x86/fpu: Using 'eager' FPU context switches. [ 0.000000] e820: BIOS-provided physical RAM map: [ 0.000000] BIOS-e820: [mem 0x0000000000000000-0x000000000009fbff] usable [ 0.000000] BIOS-e820: [mem 0x000000000009fc00-0x000000000009ffff] reserved [ 0.000000] BIOS-e820: [mem 0x00000000000f0000-0x00000000000fffff] reserved [ 0.000000] BIOS-e820: [mem 0x0000000000100000-0x00000000bfffcfff] usable [ 0.000000] BIOS-e820: [mem 0x00000000bfffd000-0x00000000bfffffff] reserved [ 0.000000] BIOS-e820: [mem 0x00000000fffbc000-0x00000000ffffffff] reserved [ 0.000000] BIOS-e820: [mem 0x0000000100000000-0x000000021fffffff] usable [ 0.000000] bootconsole [earlyser0] enabled [ 0.000000] NX (Execute Disable) protection: active [ 0.000000] SMBIOS 2.4 present. [ 0.000000] Hypervisor detected: KVM [ 0.000000] e820: last_pfn = 0x220000 max_arch_pfn = 0x400000000 [ 0.000000] x86/PAT: Configuration [0-7]: WB WC UC- UC WB WC UC- WT [ 0.000000] e820: last_pfn = 0xbfffd max_arch_pfn = 0x400000000 [ 0.000000] found SMP MP-table at [mem 0x000f32c0-0x000f32cf] mapped at [ffff8800000f32c0] [ 0.000000] Scanning 1 areas for low memory corruption [ 0.000000] Using GB pages for direct mapping [ 0.000000] ACPI: Early table checksum verification disabled [ 0.000000] ACPI: RSDP 0x00000000000F3090 000014 (v00 Google) [ 0.000000] ACPI: RSDT 0x00000000BFFFDC70 000034 (v01 Google GOOGRSDT 00000001 GOOG 00000001) [ 0.000000] ACPI: FACP 0x00000000BFFFFF00 0000F4 (v02 Google GOOGFACP 00000001 GOOG 00000001) [ 0.000000] ACPI: DSDT 0x00000000BFFFDCB0 0017B2 (v01 Google GOOGDSDT 00000001 GOOG 00000001) [ 0.000000] ACPI: FACS 0x00000000BFFFFEC0 000040 [ 0.000000] ACPI: FACS 0x00000000BFFFFEC0 000040 [ 0.000000] ACPI: SSDT 0x00000000BFFFF590 000930 (v01 Google GOOGSSDT 00000001 GOOG 00000001) [ 0.000000] ACPI: APIC 0x00000000BFFFF4A0 000076 (v01 Google GOOGAPIC 00000001 GOOG 00000001) [ 0.000000] ACPI: WAET 0x00000000BFFFF470 000028 (v01 Google GOOGWAET 00000001 GOOG 00000001) [ 0.000000] kvm-clock: Using msrs 4b564d01 and 4b564d00 [ 0.000000] kvm-clock: cpu 0, msr 2:1fffd001, primary cpu clock [ 0.000000] kvm-clock: using sched offset of 1254732822 cycles [ 0.000000] clocksource: kvm-clock: mask: 0xffffffffffffffff max_cycles: 0x1cd42e4dffb, max_idle_ns: 881590591483 ns [ 0.000000] Zone ranges: [ 0.000000] DMA [mem 0x0000000000001000-0x0000000000ffffff] [ 0.000000] DMA32 [mem 0x0000000001000000-0x00000000ffffffff] [ 0.000000] Normal [mem 0x0000000100000000-0x000000021fffffff] [ 0.000000] Movable zone start for each node [ 0.000000] Early memory node ranges [ 0.000000] node 0: [mem 0x0000000000001000-0x000000000009efff] [ 0.000000] node 0: [mem 0x0000000000100000-0x00000000bfffcfff] [ 0.000000] node 0: [mem 0x0000000100000000-0x000000021fffffff] [ 0.000000] Initmem setup node 0 [mem 0x0000000000001000-0x000000021fffffff] [ 0.000000] kasan: KernelAddressSanitizer initialized [ 0.000000] ACPI: PM-Timer IO Port: 0xb008 [ 0.000000] ACPI: LAPIC_NMI (acpi_id[0xff] dfl dfl lint[0x1]) [ 0.000000] IOAPIC[0]: apic_id 0, version 17, address 0xfec00000, GSI 0-23 [ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 5 global_irq 5 high level) [ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 9 global_irq 9 high level) [ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 10 global_irq 10 high level) [ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 11 global_irq 11 high level) [ 0.000000] Using ACPI (MADT) for SMP configuration information [ 0.000000] smpboot: Allowing 2 CPUs, 0 hotplug CPUs [ 0.000000] PM: Registered nosave memory: [mem 0x00000000-0x00000fff] [ 0.000000] PM: Registered nosave memory: [mem 0x0009f000-0x0009ffff] [ 0.000000] PM: Registered nosave memory: [mem 0x000a0000-0x000effff] [ 0.000000] PM: Registered nosave memory: [mem 0x000f0000-0x000fffff] [ 0.000000] PM: Registered nosave memory: [mem 0xbfffd000-0xbfffffff] [ 0.000000] PM: Registered nosave memory: [mem 0xc0000000-0xfffbbfff] [ 0.000000] PM: Registered nosave memory: [mem 0xfffbc000-0xffffffff] [ 0.000000] e820: [mem 0xc0000000-0xfffbbfff] available for PCI devices [ 0.000000] Booting paravirtualized kernel on KVM [ 0.000000] clocksource: refined-jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604462750000 ns [ 0.000000] setup_percpu: NR_CPUS:64 nr_cpumask_bits:64 nr_cpu_ids:2 nr_node_ids:1 [ 0.000000] PERCPU: Embedded 42 pages/cpu @ffff8801db200000 s132680 r8192 d31160 u1048576 [ 0.000000] Built 1 zonelists in Zone order, mobility grouping on. Total pages: 1935238 [ 0.000000] Kernel command line: BOOT_IMAGE=/vmlinuz root=/dev/sda1 console=ttyS0 earlyprintk=serial vsyscall=native rodata=n ftrace_dump_on_oops=orig_cpu oops=panic panic_on_warn=1 nmi_watchdog=panic panic=86400 workqueue.watchdog_thresh=120 [ 0.000000] PID hash table entries: 4096 (order: 3, 32768 bytes) [ 0.000000] Dentry cache hash table entries: 1048576 (order: 11, 8388608 bytes) [ 0.000000] Inode-cache hash table entries: 524288 (order: 10, 4194304 bytes) [ 0.000000] ================================================================== [ 0.000000] BUG: KASAN: stack-out-of-bounds in reserve_bootmem_region+0xdf/0x130 [ 0.000000] Write of size 8 at addr ffffea0000047ce0 by task swapper/0 [ 0.000000] [ 0.000000] CPU: 0 PID: 0 Comm: swapper Not tainted 4.4.108-g55b3b8c #7 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 703950d681409f56 ffffffff84207ce8 ffffffff81d02e5d [ 0.000000] ffffea0000047ce0 ffffea0000047ce0 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d20 ffffffff814fb329 ffffea0000047ce0 [ 0.000000] Call Trace: [ 0.000000] [] dump_stack+0xc1/0x124 [ 0.000000] [] print_address_description+0x189/0x260 [ 0.000000] [] kasan_report+0x285/0x370 [ 0.000000] [] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] free_all_bootmem+0xf2/0x24d [ 0.000000] [] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [] ? dmar_table_detect+0x60/0x60 [ 0.000000] [] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [] mem_init+0x13/0x74 [ 0.000000] [] start_kernel+0x31d/0x6e9 [ 0.000000] [] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [] x86_64_start_kernel+0x140/0x163 [ 0.000000] [ 0.000000] [ 0.000000] Memory state around the buggy address: [ 0.000000] ffffea0000047b80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ffffea0000047c00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] >ffffea0000047c80: 00 00 00 00 00 00 f1 f1 f1 f1 00 00 f2 f2 00 00 [ 0.000000] ^ [ 0.000000] ffffea0000047d00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ffffea0000047d80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ================================================================== [ 0.000000] Disabling lock debugging due to kernel taint [ 0.000000] Kernel panic - not syncing: panic_on_warn set ... [ 0.000000] [ 0.000000] CPU: 0 PID: 0 Comm: swapper Tainted: G B 4.4.108-g55b3b8c #7 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 703950d681409f56 ffffffff84207c40 ffffffff81d02e5d [ 0.000000] ffffffff83fb34b5 ffffffff84207d18 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d08 ffffffff81417caa 0000000041b58ab3 [ 0.000000] Call Trace: [ 0.000000] [] dump_stack+0xc1/0x124 [ 0.000000] [] panic+0x1aa/0x388 [ 0.000000] [] ? percpu_up_read.constprop.45+0xe1/0xe1 [ 0.000000] [] kasan_end_report+0x50/0x50 [ 0.000000] [] kasan_report+0x15c/0x370 [ 0.000000] [] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] free_all_bootmem+0xf2/0x24d [ 0.000000] [] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [] ? dmar_table_detect+0x60/0x60 [ 0.000000] [] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [] mem_init+0x13/0x74 [ 0.000000] [] start_kernel+0x31d/0x6e9 [ 0.000000] [] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [] x86_64_start_kernel+0x140/0x163 [ 0.000000] Rebooting in 86400 seconds.. [ 0.000000] ACPI MEMORY or I/O RESET_REG. SeaBIOS (version 1.8.2-20171012_061934-google) Total RAM Size = 0x00000001e0000000 = 7680 MiB CPUs found: 2 Max CPUs supported: 2 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 0x000f3050: PCHS=0/0/0 translation=lba LCHS=520/128/63 s=4194304 Booting from Hard Disk 0... early console in decompress_kernel input_data: 0x00000000039be26e input_len: 0x0000000001424e03 output: 0x0000000001000000 output_len: 0x0000000003dcea40 run_size: 0x0000000005504000 Decompressing Linux... Parsing ELF... done. Booting the kernel. [ 0.000000] Initializing cgroup subsys cpuset [ 0.000000] Initializing cgroup subsys cpu [ 0.000000] Initializing cgroup subsys cpuacct [ 0.000000] Initializing cgroup subsys schedtune [ 0.000000] Linux version 4.4.108-g55b3b8c (syzkaller@ci) (gcc version 7.1.1 20170620 (GCC) ) #7 SMP PREEMPT Fri Dec 29 21:50:38 UTC 2017 [ 0.000000] Command line: BOOT_IMAGE=/vmlinuz root=/dev/sda1 console=ttyS0 earlyprintk=serial vsyscall=native rodata=n ftrace_dump_on_oops=orig_cpu oops=panic panic_on_warn=1 nmi_watchdog=panic panic=86400 workqueue.watchdog_thresh=120 [ 0.000000] KERNEL supported cpus: [ 0.000000] Intel GenuineIntel [ 0.000000] AMD AuthenticAMD [ 0.000000] Centaur CentaurHauls [ 0.000000] x86/fpu: xstate_offset[2]: 576, xstate_sizes[2]: 256 [ 0.000000] x86/fpu: Supporting XSAVE feature 0x01: 'x87 floating point registers' [ 0.000000] x86/fpu: Supporting XSAVE feature 0x02: 'SSE registers' [ 0.000000] x86/fpu: Supporting XSAVE feature 0x04: 'AVX registers' [ 0.000000] x86/fpu: Enabled xstate features 0x7, context size is 832 bytes, using 'standard' format. [ 0.000000] x86/fpu: Using 'eager' FPU context switches. [ 0.000000] e820: BIOS-provided physical RAM map: [ 0.000000] BIOS-e820: [mem 0x0000000000000000-0x000000000009fbff] usable [ 0.000000] BIOS-e820: [mem 0x000000000009fc00-0x000000000009ffff] reserved [ 0.000000] BIOS-e820: [mem 0x00000000000f0000-0x00000000000fffff] reserved [ 0.000000] BIOS-e820: [mem 0x0000000000100000-0x00000000bfffcfff] usable [ 0.000000] BIOS-e820: [mem 0x00000000bfffd000-0x00000000bfffffff] reserved [ 0.000000] BIOS-e820: [mem 0x00000000fffbc000-0x00000000ffffffff] reserved [ 0.000000] BIOS-e820: [mem 0x0000000100000000-0x000000021fffffff] usable [ 0.000000] bootconsole [earlyser0] enabled [ 0.000000] NX (Execute Disable) protection: active [ 0.000000] SMBIOS 2.4 present. [ 0.000000] Hypervisor detected: KVM [ 0.000000] e820: last_pfn = 0x220000 max_arch_pfn = 0x400000000 [ 0.000000] x86/PAT: Configuration [0-7]: WB WC UC- UC WB WC UC- WT [ 0.000000] e820: last_pfn = 0xbfffd max_arch_pfn = 0x400000000 [ 0.000000] found SMP MP-table at [mem 0x000f32c0-0x000f32cf] mapped at [ffff8800000f32c0] [ 0.000000] Scanning 1 areas for low memory corruption [ 0.000000] Using GB pages for direct mapping [ 0.000000] ACPI: Early table checksum verification disabled [ 0.000000] ACPI: RSDP 0x00000000000F3090 000014 (v00 Google) [ 0.000000] ACPI: RSDT 0x00000000BFFFDC70 000034 (v01 Google GOOGRSDT 00000001 GOOG 00000001) [ 0.000000] ACPI: FACP 0x00000000BFFFFF00 0000F4 (v02 Google GOOGFACP 00000001 GOOG 00000001) [ 0.000000] ACPI: DSDT 0x00000000BFFFDCB0 0017B2 (v01 Google GOOGDSDT 00000001 GOOG 00000001) [ 0.000000] ACPI: FACS 0x00000000BFFFFEC0 000040 [ 0.000000] ACPI: FACS 0x00000000BFFFFEC0 000040 [ 0.000000] ACPI: SSDT 0x00000000BFFFF590 000930 (v01 Google GOOGSSDT 00000001 GOOG 00000001) [ 0.000000] ACPI: APIC 0x00000000BFFFF4A0 000076 (v01 Google GOOGAPIC 00000001 GOOG 00000001) [ 0.000000] ACPI: WAET 0x00000000BFFFF470 000028 (v01 Google GOOGWAET 00000001 GOOG 00000001) [ 0.000000] kvm-clock: Using msrs 4b564d01 and 4b564d00 [ 0.000000] kvm-clock: cpu 0, msr 2:1fffd001, primary cpu clock [ 0.000000] kvm-clock: using sched offset of 1258640573 cycles [ 0.000000] clocksource: kvm-clock: mask: 0xffffffffffffffff max_cycles: 0x1cd42e4dffb, max_idle_ns: 881590591483 ns [ 0.000000] Zone ranges: [ 0.000000] DMA [mem 0x0000000000001000-0x0000000000ffffff] [ 0.000000] DMA32 [mem 0x0000000001000000-0x00000000ffffffff] [ 0.000000] Normal [mem 0x0000000100000000-0x000000021fffffff] [ 0.000000] Movable zone start for each node [ 0.000000] Early memory node ranges [ 0.000000] node 0: [mem 0x0000000000001000-0x000000000009efff] [ 0.000000] node 0: [mem 0x0000000000100000-0x00000000bfffcfff] [ 0.000000] node 0: [mem 0x0000000100000000-0x000000021fffffff] [ 0.000000] Initmem setup node 0 [mem 0x0000000000001000-0x000000021fffffff] [ 0.000000] kasan: KernelAddressSanitizer initialized [ 0.000000] ACPI: PM-Timer IO Port: 0xb008 [ 0.000000] ACPI: LAPIC_NMI (acpi_id[0xff] dfl dfl lint[0x1]) [ 0.000000] IOAPIC[0]: apic_id 0, version 17, address 0xfec00000, GSI 0-23 [ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 5 global_irq 5 high level) [ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 9 global_irq 9 high level) [ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 10 global_irq 10 high level) [ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 11 global_irq 11 high level) [ 0.000000] Using ACPI (MADT) for SMP configuration information [ 0.000000] smpboot: Allowing 2 CPUs, 0 hotplug CPUs [ 0.000000] PM: Registered nosave memory: [mem 0x00000000-0x00000fff] [ 0.000000] PM: Registered nosave memory: [mem 0x0009f000-0x0009ffff] [ 0.000000] PM: Registered nosave memory: [mem 0x000a0000-0x000effff] [ 0.000000] PM: Registered nosave memory: [mem 0x000f0000-0x000fffff] [ 0.000000] PM: Registered nosave memory: [mem 0xbfffd000-0xbfffffff] [ 0.000000] PM: Registered nosave memory: [mem 0xc0000000-0xfffbbfff] [ 0.000000] PM: Registered nosave memory: [mem 0xfffbc000-0xffffffff] [ 0.000000] e820: [mem 0xc0000000-0xfffbbfff] available for PCI devices [ 0.000000] Booting paravirtualized kernel on KVM [ 0.000000] clocksource: refined-jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604462750000 ns [ 0.000000] setup_percpu: NR_CPUS:64 nr_cpumask_bits:64 nr_cpu_ids:2 nr_node_ids:1 [ 0.000000] PERCPU: Embedded 42 pages/cpu @ffff8801db200000 s132680 r8192 d31160 u1048576 [ 0.000000] Built 1 zonelists in Zone order, mobility grouping on. Total pages: 1935238 [ 0.000000] Kernel command line: BOOT_IMAGE=/vmlinuz root=/dev/sda1 console=ttyS0 earlyprintk=serial vsyscall=native rodata=n ftrace_dump_on_oops=orig_cpu oops=panic panic_on_warn=1 nmi_watchdog=panic panic=86400 workqueue.watchdog_thresh=120 [ 0.000000] PID hash table entries: 4096 (order: 3, 32768 bytes) [ 0.000000] Dentry cache hash table entries: 1048576 (order: 11, 8388608 bytes) [ 0.000000] Inode-cache hash table entries: 524288 (order: 10, 4194304 bytes) [ 0.000000] ================================================================== [ 0.000000] BUG: KASAN: stack-out-of-bounds in reserve_bootmem_region+0xdf/0x130 [ 0.000000] Write of size 8 at addr ffffea0000047ce0 by task swapper/0 [ 0.000000] [ 0.000000] CPU: 0 PID: 0 Comm: swapper Not tainted 4.4.108-g55b3b8c #7 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 70be295181c577d1 ffffffff84207ce8 ffffffff81d02e5d [ 0.000000] ffffea0000047ce0 ffffea0000047ce0 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d20 ffffffff814fb329 ffffea0000047ce0 [ 0.000000] Call Trace: [ 0.000000] [] dump_stack+0xc1/0x124 [ 0.000000] [] print_address_description+0x189/0x260 [ 0.000000] [] kasan_report+0x285/0x370 [ 0.000000] [] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] free_all_bootmem+0xf2/0x24d [ 0.000000] [] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [] ? dmar_table_detect+0x60/0x60 [ 0.000000] [] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [] mem_init+0x13/0x74 [ 0.000000] [] start_kernel+0x31d/0x6e9 [ 0.000000] [] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [] x86_64_start_kernel+0x140/0x163 [ 0.000000] [ 0.000000] [ 0.000000] Memory state around the buggy address: [ 0.000000] ffffea0000047b80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ffffea0000047c00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] >ffffea0000047c80: 00 00 00 00 00 00 f1 f1 f1 f1 00 00 f2 f2 00 00 [ 0.000000] ^ [ 0.000000] ffffea0000047d00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ffffea0000047d80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ================================================================== [ 0.000000] Disabling lock debugging due to kernel taint [ 0.000000] Kernel panic - not syncing: panic_on_warn set ... [ 0.000000] [ 0.000000] CPU: 0 PID: 0 Comm: swapper Tainted: G B 4.4.108-g55b3b8c #7 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 70be295181c577d1 ffffffff84207c40 ffffffff81d02e5d [ 0.000000] ffffffff83fb34b5 ffffffff84207d18 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d08 ffffffff81417caa 0000000041b58ab3 [ 0.000000] Call Trace: [ 0.000000] [] dump_stack+0xc1/0x124 [ 0.000000] [] panic+0x1aa/0x388 [ 0.000000] [] ? percpu_up_read.constprop.45+0xe1/0xe1 [ 0.000000] [] kasan_end_report+0x50/0x50 [ 0.000000] [] kasan_report+0x15c/0x370 [ 0.000000] [] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] free_all_bootmem+0xf2/0x24d [ 0.000000] [] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [] ? dmar_table_detect+0x60/0x60 [ 0.000000] [] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [] mem_init+0x13/0x74 [ 0.000000] [] start_kernel+0x31d/0x6e9 [ 0.000000] [] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [] x86_64_start_kernel+0x140/0x163 [ 0.000000] Rebooting in 86400 seconds.. [ 0.000000] ACPI MEMORY or I/O RESET_REG. SeaBIOS (version 1.8.2-20171012_061934-google) Total RAM Size = 0x00000001e0000000 = 7680 MiB CPUs found: 2 Max CPUs supported: 2 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 0x000f3050: PCHS=0/0/0 translation=lba LCHS=520/128/63 s=4194304 Booting from Hard Disk 0... early console in decompress_kernel input_data: 0x00000000039be26e input_len: 0x0000000001424e03 output: 0x0000000001000000 output_len: 0x0000000003dcea40 run_size: 0x0000000005504000 Decompressing Linux... Parsing ELF... done. Booting the kernel. [ 0.000000] Initializing cgroup subsys cpuset [ 0.000000] Initializing cgroup subsys cpu [ 0.000000] Initializing cgroup subsys cpuacct [ 0.000000] Initializing cgroup subsys schedtune [ 0.000000] Linux version 4.4.108-g55b3b8c (syzkaller@ci) (gcc version 7.1.1 20170620 (GCC) ) #7 SMP PREEMPT Fri Dec 29 21:50:38 UTC 2017 [ 0.000000] Command line: BOOT_IMAGE=/vmlinuz root=/dev/sda1 console=ttyS0 earlyprintk=serial vsyscall=native rodata=n ftrace_dump_on_oops=orig_cpu oops=panic panic_on_warn=1 nmi_watchdog=panic panic=86400 workqueue.watchdog_thresh=120 [ 0.000000] KERNEL supported cpus: [ 0.000000] Intel GenuineIntel [ 0.000000] AMD AuthenticAMD [ 0.000000] Centaur CentaurHauls [ 0.000000] x86/fpu: xstate_offset[2]: 576, xstate_sizes[2]: 256 [ 0.000000] x86/fpu: Supporting XSAVE feature 0x01: 'x87 floating point registers' [ 0.000000] x86/fpu: Supporting XSAVE feature 0x02: 'SSE registers' [ 0.000000] x86/fpu: Supporting XSAVE feature 0x04: 'AVX registers' [ 0.000000] x86/fpu: Enabled xstate features 0x7, context size is 832 bytes, using 'standard' format. [ 0.000000] x86/fpu: Using 'eager' FPU context switches. [ 0.000000] e820: BIOS-provided physical RAM map: [ 0.000000] BIOS-e820: [mem 0x0000000000000000-0x000000000009fbff] usable [ 0.000000] BIOS-e820: [mem 0x000000000009fc00-0x000000000009ffff] reserved [ 0.000000] BIOS-e820: [mem 0x00000000000f0000-0x00000000000fffff] reserved [ 0.000000] BIOS-e820: [mem 0x0000000000100000-0x00000000bfffcfff] usable [ 0.000000] BIOS-e820: [mem 0x00000000bfffd000-0x00000000bfffffff] reserved [ 0.000000] BIOS-e820: [mem 0x00000000fffbc000-0x00000000ffffffff] reserved [ 0.000000] BIOS-e820: [mem 0x0000000100000000-0x000000021fffffff] usable [ 0.000000] bootconsole [earlyser0] enabled [ 0.000000] NX (Execute Disable) protection: active [ 0.000000] SMBIOS 2.4 present. [ 0.000000] Hypervisor detected: KVM [ 0.000000] e820: last_pfn = 0x220000 max_arch_pfn = 0x400000000 [ 0.000000] x86/PAT: Configuration [0-7]: WB WC UC- UC WB WC UC- WT [ 0.000000] e820: last_pfn = 0xbfffd max_arch_pfn = 0x400000000 [ 0.000000] found SMP MP-table at [mem 0x000f32c0-0x000f32cf] mapped at [ffff8800000f32c0] [ 0.000000] Scanning 1 areas for low memory corruption [ 0.000000] Using GB pages for direct mapping [ 0.000000] ACPI: Early table checksum verification disabled [ 0.000000] ACPI: RSDP 0x00000000000F3090 000014 (v00 Google) [ 0.000000] ACPI: RSDT 0x00000000BFFFDC70 000034 (v01 Google GOOGRSDT 00000001 GOOG 00000001) [ 0.000000] ACPI: FACP 0x00000000BFFFFF00 0000F4 (v02 Google GOOGFACP 00000001 GOOG 00000001) [ 0.000000] ACPI: DSDT 0x00000000BFFFDCB0 0017B2 (v01 Google GOOGDSDT 00000001 GOOG 00000001) [ 0.000000] ACPI: FACS 0x00000000BFFFFEC0 000040 [ 0.000000] ACPI: FACS 0x00000000BFFFFEC0 000040 [ 0.000000] ACPI: SSDT 0x00000000BFFFF590 000930 (v01 Google GOOGSSDT 00000001 GOOG 00000001) [ 0.000000] ACPI: APIC 0x00000000BFFFF4A0 000076 (v01 Google GOOGAPIC 00000001 GOOG 00000001) [ 0.000000] ACPI: WAET 0x00000000BFFFF470 000028 (v01 Google GOOGWAET 00000001 GOOG 00000001) [ 0.000000] kvm-clock: Using msrs 4b564d01 and 4b564d00 [ 0.000000] kvm-clock: cpu 0, msr 2:1fffd001, primary cpu clock [ 0.000000] kvm-clock: using sched offset of 1174774507 cycles [ 0.000000] clocksource: kvm-clock: mask: 0xffffffffffffffff max_cycles: 0x1cd42e4dffb, max_idle_ns: 881590591483 ns [ 0.000000] Zone ranges: [ 0.000000] DMA [mem 0x0000000000001000-0x0000000000ffffff] [ 0.000000] DMA32 [mem 0x0000000001000000-0x00000000ffffffff] [ 0.000000] Normal [mem 0x0000000100000000-0x000000021fffffff] [ 0.000000] Movable zone start for each node [ 0.000000] Early memory node ranges [ 0.000000] node 0: [mem 0x0000000000001000-0x000000000009efff] [ 0.000000] node 0: [mem 0x0000000000100000-0x00000000bfffcfff] [ 0.000000] node 0: [mem 0x0000000100000000-0x000000021fffffff] [ 0.000000] Initmem setup node 0 [mem 0x0000000000001000-0x000000021fffffff] [ 0.000000] kasan: KernelAddressSanitizer initialized [ 0.000000] ACPI: PM-Timer IO Port: 0xb008 [ 0.000000] ACPI: LAPIC_NMI (acpi_id[0xff] dfl dfl lint[0x1]) [ 0.000000] IOAPIC[0]: apic_id 0, version 17, address 0xfec00000, GSI 0-23 [ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 5 global_irq 5 high level) [ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 9 global_irq 9 high level) [ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 10 global_irq 10 high level) [ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 11 global_irq 11 high level) [ 0.000000] Using ACPI (MADT) for SMP configuration information [ 0.000000] smpboot: Allowing 2 CPUs, 0 hotplug CPUs [ 0.000000] PM: Registered nosave memory: [mem 0x00000000-0x00000fff] [ 0.000000] PM: Registered nosave memory: [mem 0x0009f000-0x0009ffff] [ 0.000000] PM: Registered nosave memory: [mem 0x000a0000-0x000effff] [ 0.000000] PM: Registered nosave memory: [mem 0x000f0000-0x000fffff] [ 0.000000] PM: Registered nosave memory: [mem 0xbfffd000-0xbfffffff] [ 0.000000] PM: Registered nosave memory: [mem 0xc0000000-0xfffbbfff] [ 0.000000] PM: Registered nosave memory: [mem 0xfffbc000-0xffffffff] [ 0.000000] e820: [mem 0xc0000000-0xfffbbfff] available for PCI devices [ 0.000000] Booting paravirtualized kernel on KVM [ 0.000000] clocksource: refined-jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604462750000 ns [ 0.000000] setup_percpu: NR_CPUS:64 nr_cpumask_bits:64 nr_cpu_ids:2 nr_node_ids:1 [ 0.000000] PERCPU: Embedded 42 pages/cpu @ffff8801db200000 s132680 r8192 d31160 u1048576 [ 0.000000] Built 1 zonelists in Zone order, mobility grouping on. Total pages: 1935238 [ 0.000000] Kernel command line: BOOT_IMAGE=/vmlinuz root=/dev/sda1 console=ttyS0 earlyprintk=serial vsyscall=native rodata=n ftrace_dump_on_oops=orig_cpu oops=panic panic_on_warn=1 nmi_watchdog=panic panic=86400 workqueue.watchdog_thresh=120 [ 0.000000] PID hash table entries: 4096 (order: 3, 32768 bytes) [ 0.000000] Dentry cache hash table entries: 1048576 (order: 11, 8388608 bytes) [ 0.000000] Inode-cache hash table entries: 524288 (order: 10, 4194304 bytes) [ 0.000000] ================================================================== [ 0.000000] BUG: KASAN: stack-out-of-bounds in reserve_bootmem_region+0xdf/0x130 [ 0.000000] Write of size 8 at addr ffffea0000047ce0 by task swapper/0 [ 0.000000] [ 0.000000] CPU: 0 PID: 0 Comm: swapper Not tainted 4.4.108-g55b3b8c #7 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 65569671765de4f1 ffffffff84207ce8 ffffffff81d02e5d [ 0.000000] ffffea0000047ce0 ffffea0000047ce0 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d20 ffffffff814fb329 ffffea0000047ce0 [ 0.000000] Call Trace: [ 0.000000] [] dump_stack+0xc1/0x124 [ 0.000000] [] print_address_description+0x189/0x260 [ 0.000000] [] kasan_report+0x285/0x370 [ 0.000000] [] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] free_all_bootmem+0xf2/0x24d [ 0.000000] [] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [] ? dmar_table_detect+0x60/0x60 [ 0.000000] [] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [] mem_init+0x13/0x74 [ 0.000000] [] start_kernel+0x31d/0x6e9 [ 0.000000] [] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [] x86_64_start_kernel+0x140/0x163 [ 0.000000] [ 0.000000] [ 0.000000] Memory state around the buggy address: [ 0.000000] ffffea0000047b80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ffffea0000047c00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] >ffffea0000047c80: 00 00 00 00 00 00 f1 f1 f1 f1 00 00 f2 f2 00 00 [ 0.000000] ^ [ 0.000000] ffffea0000047d00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ffffea0000047d80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ================================================================== [ 0.000000] Disabling lock debugging due to kernel taint [ 0.000000] Kernel panic - not syncing: panic_on_warn set ... [ 0.000000] [ 0.000000] CPU: 0 PID: 0 Comm: swapper Tainted: G B 4.4.108-g55b3b8c #7 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 65569671765de4f1 ffffffff84207c40 ffffffff81d02e5d [ 0.000000] ffffffff83fb34b5 ffffffff84207d18 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d08 ffffffff81417caa 0000000041b58ab3 [ 0.000000] Call Trace: [ 0.000000] [] dump_stack+0xc1/0x124 [ 0.000000] [] panic+0x1aa/0x388 [ 0.000000] [] ? percpu_up_read.constprop.45+0xe1/0xe1 [ 0.000000] [] kasan_end_report+0x50/0x50 [ 0.000000] [] kasan_report+0x15c/0x370 [ 0.000000] [] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] free_all_bootmem+0xf2/0x24d [ 0.000000] [] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [] ? dmar_table_detect+0x60/0x60 [ 0.000000] [] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [] mem_init+0x13/0x74 [ 0.000000] [] start_kernel+0x31d/0x6e9 [ 0.000000] [] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [] x86_64_start_kernel+0x140/0x163 [ 0.000000] Rebooting in 86400 seconds.. [ 0.000000] ACPI MEMORY or I/O RESET_REG. SeaBIOS (version 1.8.2-20171012_061934-google) Total RAM Size = 0x00000001e0000000 = 7680 MiB CPUs found: 2 Max CPUs supported: 2 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 0x000f3050: PCHS=0/0/0 translation=lba LCHS=520/128/63 s=4194304 Booting from Hard Disk 0... early console in decompress_kernel input_data: 0x00000000039be26e input_len: 0x0000000001424e03 output: 0x0000000001000000 output_len: 0x0000000003dcea40 run_size: 0x0000000005504000 Decompressing Linux... Parsing ELF... done. Booting the kernel. [ 0.000000] Initializing cgroup subsys cpuset [ 0.000000] Initializing cgroup subsys cpu [ 0.000000] Initializing cgroup subsys cpuacct [ 0.000000] Initializing cgroup subsys schedtune [ 0.000000] Linux version 4.4.108-g55b3b8c (syzkaller@ci) (gcc version 7.1.1 20170620 (GCC) ) #7 SMP PREEMPT Fri Dec 29 21:50:38 UTC 2017 [ 0.000000] Command line: BOOT_IMAGE=/vmlinuz root=/dev/sda1 console=ttyS0 earlyprintk=serial vsyscall=native rodata=n ftrace_dump_on_oops=orig_cpu oops=panic panic_on_warn=1 nmi_watchdog=panic panic=86400 workqueue.watchdog_thresh=120 [ 0.000000] KERNEL supported cpus: [ 0.000000] Intel GenuineIntel [ 0.000000] AMD AuthenticAMD [ 0.000000] Centaur CentaurHauls [ 0.000000] x86/fpu: xstate_offset[2]: 576, xstate_sizes[2]: 256 [ 0.000000] x86/fpu: Supporting XSAVE feature 0x01: 'x87 floating point registers' [ 0.000000] x86/fpu: Supporting XSAVE feature 0x02: 'SSE registers' [ 0.000000] x86/fpu: Supporting XSAVE feature 0x04: 'AVX registers' [ 0.000000] x86/fpu: Enabled xstate features 0x7, context size is 832 bytes, using 'standard' format. [ 0.000000] x86/fpu: Using 'eager' FPU context switches. [ 0.000000] e820: BIOS-provided physical RAM map: [ 0.000000] BIOS-e820: [mem 0x0000000000000000-0x000000000009fbff] usable [ 0.000000] BIOS-e820: [mem 0x000000000009fc00-0x000000000009ffff] reserved [ 0.000000] BIOS-e820: [mem 0x00000000000f0000-0x00000000000fffff] reserved [ 0.000000] BIOS-e820: [mem 0x0000000000100000-0x00000000bfffcfff] usable [ 0.000000] BIOS-e820: [mem 0x00000000bfffd000-0x00000000bfffffff] reserved [ 0.000000] BIOS-e820: [mem 0x00000000fffbc000-0x00000000ffffffff] reserved [ 0.000000] BIOS-e820: [mem 0x0000000100000000-0x000000021fffffff] usable [ 0.000000] bootconsole [earlyser0] enabled [ 0.000000] NX (Execute Disable) protection: active [ 0.000000] SMBIOS 2.4 present. [ 0.000000] Hypervisor detected: KVM [ 0.000000] e820: last_pfn = 0x220000 max_arch_pfn = 0x400000000 [ 0.000000] x86/PAT: Configuration [0-7]: WB WC UC- UC WB WC UC- WT [ 0.000000] e820: last_pfn = 0xbfffd max_arch_pfn = 0x400000000 [ 0.000000] found SMP MP-table at [mem 0x000f32c0-0x000f32cf] mapped at [ffff8800000f32c0] [ 0.000000] Scanning 1 areas for low memory corruption [ 0.000000] Using GB pages for direct mapping [ 0.000000] ACPI: Early table checksum verification disabled [ 0.000000] ACPI: RSDP 0x00000000000F3090 000014 (v00 Google) [ 0.000000] ACPI: RSDT 0x00000000BFFFDC70 000034 (v01 Google GOOGRSDT 00000001 GOOG 00000001) [ 0.000000] ACPI: FACP 0x00000000BFFFFF00 0000F4 (v02 Google GOOGFACP 00000001 GOOG 00000001) [ 0.000000] ACPI: DSDT 0x00000000BFFFDCB0 0017B2 (v01 Google GOOGDSDT 00000001 GOOG 00000001) [ 0.000000] ACPI: FACS 0x00000000BFFFFEC0 000040 [ 0.000000] ACPI: FACS 0x00000000BFFFFEC0 000040 [ 0.000000] ACPI: SSDT 0x00000000BFFFF590 000930 (v01 Google GOOGSSDT 00000001 GOOG 00000001) [ 0.000000] ACPI: APIC 0x00000000BFFFF4A0 000076 (v01 Google GOOGAPIC 00000001 GOOG 00000001) [ 0.000000] ACPI: WAET 0x00000000BFFFF470 000028 (v01 Google GOOGWAET 00000001 GOOG 00000001) [ 0.000000] kvm-clock: Using msrs 4b564d01 and 4b564d00 [ 0.000000] kvm-clock: cpu 0, msr 2:1fffd001, primary cpu clock [ 0.000000] kvm-clock: using sched offset of 1300968641 cycles [ 0.000000] clocksource: kvm-clock: mask: 0xffffffffffffffff max_cycles: 0x1cd42e4dffb, max_idle_ns: 881590591483 ns [ 0.000000] Zone ranges: [ 0.000000] DMA [mem 0x0000000000001000-0x0000000000ffffff] [ 0.000000] DMA32 [mem 0x0000000001000000-0x00000000ffffffff] [ 0.000000] Normal [mem 0x0000000100000000-0x000000021fffffff] [ 0.000000] Movable zone start for each node [ 0.000000] Early memory node ranges [ 0.000000] node 0: [mem 0x0000000000001000-0x000000000009efff] [ 0.000000] node 0: [mem 0x0000000000100000-0x00000000bfffcfff] [ 0.000000] node 0: [mem 0x0000000100000000-0x000000021fffffff] [ 0.000000] Initmem setup node 0 [mem 0x0000000000001000-0x000000021fffffff] [ 0.000000] kasan: KernelAddressSanitizer initialized [ 0.000000] ACPI: PM-Timer IO Port: 0xb008 [ 0.000000] ACPI: LAPIC_NMI (acpi_id[0xff] dfl dfl lint[0x1]) [ 0.000000] IOAPIC[0]: apic_id 0, version 17, address 0xfec00000, GSI 0-23 [ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 5 global_irq 5 high level) [ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 9 global_irq 9 high level) [ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 10 global_irq 10 high level) [ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 11 global_irq 11 high level) [ 0.000000] Using ACPI (MADT) for SMP configuration information [ 0.000000] smpboot: Allowing 2 CPUs, 0 hotplug CPUs [ 0.000000] PM: Registered nosave memory: [mem 0x00000000-0x00000fff] [ 0.000000] PM: Registered nosave memory: [mem 0x0009f000-0x0009ffff] [ 0.000000] PM: Registered nosave memory: [mem 0x000a0000-0x000effff] [ 0.000000] PM: Registered nosave memory: [mem 0x000f0000-0x000fffff] [ 0.000000] PM: Registered nosave memory: [mem 0xbfffd000-0xbfffffff] [ 0.000000] PM: Registered nosave memory: [mem 0xc0000000-0xfffbbfff] [ 0.000000] PM: Registered nosave memory: [mem 0xfffbc000-0xffffffff] [ 0.000000] e820: [mem 0xc0000000-0xfffbbfff] available for PCI devices [ 0.000000] Booting paravirtualized kernel on KVM [ 0.000000] clocksource: refined-jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604462750000 ns [ 0.000000] setup_percpu: NR_CPUS:64 nr_cpumask_bits:64 nr_cpu_ids:2 nr_node_ids:1 [ 0.000000] PERCPU: Embedded 42 pages/cpu @ffff8801db200000 s132680 r8192 d31160 u1048576 [ 0.000000] Built 1 zonelists in Zone order, mobility grouping on. Total pages: 1935238 [ 0.000000] Kernel command line: BOOT_IMAGE=/vmlinuz root=/dev/sda1 console=ttyS0 earlyprintk=serial vsyscall=native rodata=n ftrace_dump_on_oops=orig_cpu oops=panic panic_on_warn=1 nmi_watchdog=panic panic=86400 workqueue.watchdog_thresh=120 [ 0.000000] PID hash table entries: 4096 (order: 3, 32768 bytes) [ 0.000000] Dentry cache hash table entries: 1048576 (order: 11, 8388608 bytes) [ 0.000000] Inode-cache hash table entries: 524288 (order: 10, 4194304 bytes) [ 0.000000] ================================================================== [ 0.000000] BUG: KASAN: stack-out-of-bounds in reserve_bootmem_region+0xdf/0x130 [ 0.000000] Write of size 8 at addr ffffea0000047ce0 by task swapper/0 [ 0.000000] [ 0.000000] CPU: 0 PID: 0 Comm: swapper Not tainted 4.4.108-g55b3b8c #7 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 768fa2f58796f175 ffffffff84207ce8 ffffffff81d02e5d [ 0.000000] ffffea0000047ce0 ffffea0000047ce0 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d20 ffffffff814fb329 ffffea0000047ce0 [ 0.000000] Call Trace: [ 0.000000] [] dump_stack+0xc1/0x124 [ 0.000000] [] print_address_description+0x189/0x260 [ 0.000000] [] kasan_report+0x285/0x370 [ 0.000000] [] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] free_all_bootmem+0xf2/0x24d [ 0.000000] [] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [] ? dmar_table_detect+0x60/0x60 [ 0.000000] [] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [] mem_init+0x13/0x74 [ 0.000000] [] start_kernel+0x31d/0x6e9 [ 0.000000] [] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [] x86_64_start_kernel+0x140/0x163 [ 0.000000] [ 0.000000] [ 0.000000] Memory state around the buggy address: [ 0.000000] ffffea0000047b80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ffffea0000047c00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] >ffffea0000047c80: 00 00 00 00 00 00 f1 f1 f1 f1 00 00 f2 f2 00 00 [ 0.000000] ^ [ 0.000000] ffffea0000047d00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ffffea0000047d80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ================================================================== [ 0.000000] Disabling lock debugging due to kernel taint [ 0.000000] Kernel panic - not syncing: panic_on_warn set ... [ 0.000000] [ 0.000000] CPU: 0 PID: 0 Comm: swapper Tainted: G B 4.4.108-g55b3b8c #7 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 768fa2f58796f175 ffffffff84207c40 ffffffff81d02e5d [ 0.000000] ffffffff83fb34b5 ffffffff84207d18 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d08 ffffffff81417caa 0000000041b58ab3 [ 0.000000] Call Trace: [ 0.000000] [] dump_stack+0xc1/0x124 [ 0.000000] [] panic+0x1aa/0x388 [ 0.000000] [] ? percpu_up_read.constprop.45+0xe1/0xe1 [ 0.000000] [] kasan_end_report+0x50/0x50 [ 0.000000] [] kasan_report+0x15c/0x370 [ 0.000000] [] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] free_all_bootmem+0xf2/0x24d [ 0.000000] [] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [] ? dmar_table_detect+0x60/0x60 [ 0.000000] [] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [] mem_init+0x13/0x74 [ 0.000000] [] start_kernel+0x31d/0x6e9 [ 0.000000] [] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [] x86_64_start_kernel+0x140/0x163 [ 0.000000] Rebooting in 86400 seconds.. [ 0.000000] ACPI MEMORY or I/O RESET_REG. SeaBIOS (version 1.8.2-20171012_061934-google) Total RAM Size = 0x00000001e0000000 = 7680 MiB CPUs found: 2 Max CPUs supported: 2 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 0x000f3050: PCHS=0/0/0 translation=lba LCHS=520/128/63 s=4194304 Booting from Hard Disk 0... early console in decompress_kernel input_data: 0x00000000039be26e input_len: 0x0000000001424e03 output: 0x0000000001000000 output_len: 0x0000000003dcea40 run_size: 0x0000000005504000 Decompressing Linux... Parsing ELF... done. Booting the kernel. [ 0.000000] Initializing cgroup subsys cpuset [ 0.000000] Initializing cgroup subsys cpu [ 0.000000] Initializing cgroup subsys cpuacct [ 0.000000] Initializing cgroup subsys schedtune [ 0.000000] Linux version 4.4.108-g55b3b8c (syzkaller@ci) (gcc version 7.1.1 20170620 (GCC) ) #7 SMP PREEMPT Fri Dec 29 21:50:38 UTC 2017 [ 0.000000] Command line: BOOT_IMAGE=/vmlinuz root=/dev/sda1 console=ttyS0 earlyprintk=serial vsyscall=native rodata=n ftrace_dump_on_oops=orig_cpu oops=panic panic_on_warn=1 nmi_watchdog=panic panic=86400 workqueue.watchdog_thresh=120 [ 0.000000] KERNEL supported cpus: [ 0.000000] Intel GenuineIntel [ 0.000000] AMD AuthenticAMD [ 0.000000] Centaur CentaurHauls [ 0.000000] x86/fpu: xstate_offset[2]: 576, xstate_sizes[2]: 256 [ 0.000000] x86/fpu: Supporting XSAVE feature 0x01: 'x87 floating point registers' [ 0.000000] x86/fpu: Supporting XSAVE feature 0x02: 'SSE registers' [ 0.000000] x86/fpu: Supporting XSAVE feature 0x04: 'AVX registers' [ 0.000000] x86/fpu: Enabled xstate features 0x7, context size is 832 bytes, using 'standard' format. [ 0.000000] x86/fpu: Using 'eager' FPU context switches. [ 0.000000] e820: BIOS-provided physical RAM map: [ 0.000000] BIOS-e820: [mem 0x0000000000000000-0x000000000009fbff] usable [ 0.000000] BIOS-e820: [mem 0x000000000009fc00-0x000000000009ffff] reserved [ 0.000000] BIOS-e820: [mem 0x00000000000f0000-0x00000000000fffff] reserved [ 0.000000] BIOS-e820: [mem 0x0000000000100000-0x00000000bfffcfff] usable [ 0.000000] BIOS-e820: [mem 0x00000000bfffd000-0x00000000bfffffff] reserved [ 0.000000] BIOS-e820: [mem 0x00000000fffbc000-0x00000000ffffffff] reserved [ 0.000000] BIOS-e820: [mem 0x0000000100000000-0x000000021fffffff] usable [ 0.000000] bootconsole [earlyser0] enabled [ 0.000000] NX (Execute Disable) protection: active [ 0.000000] SMBIOS 2.4 present. [ 0.000000] Hypervisor detected: KVM [ 0.000000] e820: last_pfn = 0x220000 max_arch_pfn = 0x400000000 [ 0.000000] x86/PAT: Configuration [0-7]: WB WC UC- UC WB WC UC- WT [ 0.000000] e820: last_pfn = 0xbfffd max_arch_pfn = 0x400000000 [ 0.000000] found SMP MP-table at [mem 0x000f32c0-0x000f32cf] mapped at [ffff8800000f32c0] [ 0.000000] Scanning 1 areas for low memory corruption [ 0.000000] Using GB pages for direct mapping [ 0.000000] ACPI: Early table checksum verification disabled [ 0.000000] ACPI: RSDP 0x00000000000F3090 000014 (v00 Google) [ 0.000000] ACPI: RSDT 0x00000000BFFFDC70 000034 (v01 Google GOOGRSDT 00000001 GOOG 00000001) [ 0.000000] ACPI: FACP 0x00000000BFFFFF00 0000F4 (v02 Google GOOGFACP 00000001 GOOG 00000001) [ 0.000000] ACPI: DSDT 0x00000000BFFFDCB0 0017B2 (v01 Google GOOGDSDT 00000001 GOOG 00000001) [ 0.000000] ACPI: FACS 0x00000000BFFFFEC0 000040 [ 0.000000] ACPI: FACS 0x00000000BFFFFEC0 000040 [ 0.000000] ACPI: SSDT 0x00000000BFFFF590 000930 (v01 Google GOOGSSDT 00000001 GOOG 00000001) [ 0.000000] ACPI: APIC 0x00000000BFFFF4A0 000076 (v01 Google GOOGAPIC 00000001 GOOG 00000001) [ 0.000000] ACPI: WAET 0x00000000BFFFF470 000028 (v01 Google GOOGWAET 00000001 GOOG 00000001) [ 0.000000] kvm-clock: Using msrs 4b564d01 and 4b564d00 [ 0.000000] kvm-clock: cpu 0, msr 2:1fffd001, primary cpu clock [ 0.000000] kvm-clock: using sched offset of 1235669651 cycles [ 0.000000] clocksource: kvm-clock: mask: 0xffffffffffffffff max_cycles: 0x1cd42e4dffb, max_idle_ns: 881590591483 ns [ 0.000000] Zone ranges: [ 0.000000] DMA [mem 0x0000000000001000-0x0000000000ffffff] [ 0.000000] DMA32 [mem 0x0000000001000000-0x00000000ffffffff] [ 0.000000] Normal [mem 0x0000000100000000-0x000000021fffffff] [ 0.000000] Movable zone start for each node [ 0.000000] Early memory node ranges [ 0.000000] node 0: [mem 0x0000000000001000-0x000000000009efff] [ 0.000000] node 0: [mem 0x0000000000100000-0x00000000bfffcfff] [ 0.000000] node 0: [mem 0x0000000100000000-0x000000021fffffff] [ 0.000000] Initmem setup node 0 [mem 0x0000000000001000-0x000000021fffffff] [ 0.000000] kasan: KernelAddressSanitizer initialized [ 0.000000] ACPI: PM-Timer IO Port: 0xb008 [ 0.000000] ACPI: LAPIC_NMI (acpi_id[0xff] dfl dfl lint[0x1]) [ 0.000000] IOAPIC[0]: apic_id 0, version 17, address 0xfec00000, GSI 0-23 [ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 5 global_irq 5 high level) [ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 9 global_irq 9 high level) [ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 10 global_irq 10 high level) [ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 11 global_irq 11 high level) [ 0.000000] Using ACPI (MADT) for SMP configuration information [ 0.000000] smpboot: Allowing 2 CPUs, 0 hotplug CPUs [ 0.000000] PM: Registered nosave memory: [mem 0x00000000-0x00000fff] [ 0.000000] PM: Registered nosave memory: [mem 0x0009f000-0x0009ffff] [ 0.000000] PM: Registered nosave memory: [mem 0x000a0000-0x000effff] [ 0.000000] PM: Registered nosave memory: [mem 0x000f0000-0x000fffff] [ 0.000000] PM: Registered nosave memory: [mem 0xbfffd000-0xbfffffff] [ 0.000000] PM: Registered nosave memory: [mem 0xc0000000-0xfffbbfff] [ 0.000000] PM: Registered nosave memory: [mem 0xfffbc000-0xffffffff] [ 0.000000] e820: [mem 0xc0000000-0xfffbbfff] available for PCI devices [ 0.000000] Booting paravirtualized kernel on KVM [ 0.000000] clocksource: refined-jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604462750000 ns [ 0.000000] setup_percpu: NR_CPUS:64 nr_cpumask_bits:64 nr_cpu_ids:2 nr_node_ids:1 [ 0.000000] PERCPU: Embedded 42 pages/cpu @ffff8801db200000 s132680 r8192 d31160 u1048576 [ 0.000000] Built 1 zonelists in Zone order, mobility grouping on. Total pages: 1935238 [ 0.000000] Kernel command line: BOOT_IMAGE=/vmlinuz root=/dev/sda1 console=ttyS0 earlyprintk=serial vsyscall=native rodata=n ftrace_dump_on_oops=orig_cpu oops=panic panic_on_warn=1 nmi_watchdog=panic panic=86400 workqueue.watchdog_thresh=120 [ 0.000000] PID hash table entries: 4096 (order: 3, 32768 bytes) [ 0.000000] Dentry cache hash table entries: 1048576 (order: 11, 8388608 bytes) [ 0.000000] Inode-cache hash table entries: 524288 (order: 10, 4194304 bytes) [ 0.000000] ================================================================== [ 0.000000] BUG: KASAN: stack-out-of-bounds in reserve_bootmem_region+0xdf/0x130 [ 0.000000] Write of size 8 at addr ffffea0000047ce0 by task swapper/0 [ 0.000000] [ 0.000000] CPU: 0 PID: 0 Comm: swapper Not tainted 4.4.108-g55b3b8c #7 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 6dad42907eb49110 ffffffff84207ce8 ffffffff81d02e5d [ 0.000000] ffffea0000047ce0 ffffea0000047ce0 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d20 ffffffff814fb329 ffffea0000047ce0 [ 0.000000] Call Trace: [ 0.000000] [] dump_stack+0xc1/0x124 [ 0.000000] [] print_address_description+0x189/0x260 [ 0.000000] [] kasan_report+0x285/0x370 [ 0.000000] [] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] free_all_bootmem+0xf2/0x24d [ 0.000000] [] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [] ? dmar_table_detect+0x60/0x60 [ 0.000000] [] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [] mem_init+0x13/0x74 [ 0.000000] [] start_kernel+0x31d/0x6e9 [ 0.000000] [] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [] x86_64_start_kernel+0x140/0x163 [ 0.000000] [ 0.000000] [ 0.000000] Memory state around the buggy address: [ 0.000000] ffffea0000047b80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ffffea0000047c00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] >ffffea0000047c80: 00 00 00 00 00 00 f1 f1 f1 f1 00 00 f2 f2 00 00 [ 0.000000] ^ [ 0.000000] ffffea0000047d00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ffffea0000047d80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ================================================================== [ 0.000000] Disabling lock debugging due to kernel taint [ 0.000000] Kernel panic - not syncing: panic_on_warn set ... [ 0.000000] [ 0.000000] CPU: 0 PID: 0 Comm: swapper Tainted: G B 4.4.108-g55b3b8c #7 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 6dad42907eb49110 ffffffff84207c40 ffffffff81d02e5d [ 0.000000] ffffffff83fb34b5 ffffffff84207d18 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d08 ffffffff81417caa 0000000041b58ab3 [ 0.000000] Call Trace: [ 0.000000] [] dump_stack+0xc1/0x124 [ 0.000000] [] panic+0x1aa/0x388 [ 0.000000] [] ? percpu_up_read.constprop.45+0xe1/0xe1 [ 0.000000] [] kasan_end_report+0x50/0x50 [ 0.000000] [] kasan_report+0x15c/0x370 [ 0.000000] [] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] free_all_bootmem+0xf2/0x24d [ 0.000000] [] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [] ? dmar_table_detect+0x60/0x60 [ 0.000000] [] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [] mem_init+0x13/0x74 [ 0.000000] [] start_kernel+0x31d/0x6e9 [ 0.000000] [] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [] x86_64_start_kernel+0x140/0x163 [ 0.000000] Rebooting in 86400 seconds.. [ 0.000000] ACPI MEMORY or I/O RESET_REG. SeaBIOS (version 1.8.2-20171012_061934-google) Total RAM Size = 0x00000001e0000000 = 7680 MiB CPUs found: 2 Max CPUs supported: 2 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 0x000f3050: PCHS=0/0/0 translation=lba LCHS=520/128/63 s=4194304 Booting from Hard Disk 0... early console in decompress_kernel input_data: 0x00000000039be26e input_len: 0x0000000001424e03 output: 0x0000000001000000 output_len: 0x0000000003dcea40 run_size: 0x0000000005504000 Decompressing Linux... Parsing ELF... done. Booting the kernel. [ 0.000000] Initializing cgroup subsys cpuset [ 0.000000] Initializing cgroup subsys cpu [ 0.000000] Initializing cgroup subsys cpuacct [ 0.000000] Initializing cgroup subsys schedtune [ 0.000000] Linux version 4.4.108-g55b3b8c (syzkaller@ci) (gcc version 7.1.1 20170620 (GCC) ) #7 SMP PREEMPT Fri Dec 29 21:50:38 UTC 2017 [ 0.000000] Command line: BOOT_IMAGE=/vmlinuz root=/dev/sda1 console=ttyS0 earlyprintk=serial vsyscall=native rodata=n ftrace_dump_on_oops=orig_cpu oops=panic panic_on_warn=1 nmi_watchdog=panic panic=86400 workqueue.watchdog_thresh=120 [ 0.000000] KERNEL supported cpus: [ 0.000000] Intel GenuineIntel [ 0.000000] AMD AuthenticAMD [ 0.000000] Centaur CentaurHauls [ 0.000000] x86/fpu: xstate_offset[2]: 576, xstate_sizes[2]: 256 [ 0.000000] x86/fpu: Supporting XSAVE feature 0x01: 'x87 floating point registers' [ 0.000000] x86/fpu: Supporting XSAVE feature 0x02: 'SSE registers' [ 0.000000] x86/fpu: Supporting XSAVE feature 0x04: 'AVX registers' [ 0.000000] x86/fpu: Enabled xstate features 0x7, context size is 832 bytes, using 'standard' format. [ 0.000000] x86/fpu: Using 'eager' FPU context switches. [ 0.000000] e820: BIOS-provided physical RAM map: [ 0.000000] BIOS-e820: [mem 0x0000000000000000-0x000000000009fbff] usable [ 0.000000] BIOS-e820: [mem 0x000000000009fc00-0x000000000009ffff] reserved [ 0.000000] BIOS-e820: [mem 0x00000000000f0000-0x00000000000fffff] reserved [ 0.000000] BIOS-e820: [mem 0x0000000000100000-0x00000000bfffcfff] usable [ 0.000000] BIOS-e820: [mem 0x00000000bfffd000-0x00000000bfffffff] reserved [ 0.000000] BIOS-e820: [mem 0x00000000fffbc000-0x00000000ffffffff] reserved [ 0.000000] BIOS-e820: [mem 0x0000000100000000-0x000000021fffffff] usable [ 0.000000] bootconsole [earlyser0] enabled [ 0.000000] NX (Execute Disable) protection: active [ 0.000000] SMBIOS 2.4 present. [ 0.000000] Hypervisor detected: KVM [ 0.000000] e820: last_pfn = 0x220000 max_arch_pfn = 0x400000000 [ 0.000000] x86/PAT: Configuration [0-7]: WB WC UC- UC WB WC UC- WT [ 0.000000] e820: last_pfn = 0xbfffd max_arch_pfn = 0x400000000 [ 0.000000] found SMP MP-table at [mem 0x000f32c0-0x000f32cf] mapped at [ffff8800000f32c0] [ 0.000000] Scanning 1 areas for low memory corruption [ 0.000000] Using GB pages for direct mapping [ 0.000000] ACPI: Early table checksum verification disabled [ 0.000000] ACPI: RSDP 0x00000000000F3090 000014 (v00 Google) [ 0.000000] ACPI: RSDT 0x00000000BFFFDC70 000034 (v01 Google GOOGRSDT 00000001 GOOG 00000001) [ 0.000000] ACPI: FACP 0x00000000BFFFFF00 0000F4 (v02 Google GOOGFACP 00000001 GOOG 00000001) [ 0.000000] ACPI: DSDT 0x00000000BFFFDCB0 0017B2 (v01 Google GOOGDSDT 00000001 GOOG 00000001) [ 0.000000] ACPI: FACS 0x00000000BFFFFEC0 000040 [ 0.000000] ACPI: FACS 0x00000000BFFFFEC0 000040 [ 0.000000] ACPI: SSDT 0x00000000BFFFF590 000930 (v01 Google GOOGSSDT 00000001 GOOG 00000001) [ 0.000000] ACPI: APIC 0x00000000BFFFF4A0 000076 (v01 Google GOOGAPIC 00000001 GOOG 00000001) [ 0.000000] ACPI: WAET 0x00000000BFFFF470 000028 (v01 Google GOOGWAET 00000001 GOOG 00000001) [ 0.000000] kvm-clock: Using msrs 4b564d01 and 4b564d00 [ 0.000000] kvm-clock: cpu 0, msr 2:1fffd001, primary cpu clock [ 0.000000] kvm-clock: using sched offset of 1473555728 cycles [ 0.000000] clocksource: kvm-clock: mask: 0xffffffffffffffff max_cycles: 0x1cd42e4dffb, max_idle_ns: 881590591483 ns [ 0.000000] Zone ranges: [ 0.000000] DMA [mem 0x0000000000001000-0x0000000000ffffff] [ 0.000000] DMA32 [mem 0x0000000001000000-0x00000000ffffffff] [ 0.000000] Normal [mem 0x0000000100000000-0x000000021fffffff] [ 0.000000] Movable zone start for each node [ 0.000000] Early memory node ranges [ 0.000000] node 0: [mem 0x0000000000001000-0x000000000009efff] [ 0.000000] node 0: [mem 0x0000000000100000-0x00000000bfffcfff] [ 0.000000] node 0: [mem 0x0000000100000000-0x000000021fffffff] [ 0.000000] Initmem setup node 0 [mem 0x0000000000001000-0x000000021fffffff] [ 0.000000] kasan: KernelAddressSanitizer initialized [ 0.000000] ACPI: PM-Timer IO Port: 0xb008 [ 0.000000] ACPI: LAPIC_NMI (acpi_id[0xff] dfl dfl lint[0x1]) [ 0.000000] IOAPIC[0]: apic_id 0, version 17, address 0xfec00000, GSI 0-23 [ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 5 global_irq 5 high level) [ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 9 global_irq 9 high level) [ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 10 global_irq 10 high level) [ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 11 global_irq 11 high level) [ 0.000000] Using ACPI (MADT) for SMP configuration information [ 0.000000] smpboot: Allowing 2 CPUs, 0 hotplug CPUs [ 0.000000] PM: Registered nosave memory: [mem 0x00000000-0x00000fff] [ 0.000000] PM: Registered nosave memory: [mem 0x0009f000-0x0009ffff] [ 0.000000] PM: Registered nosave memory: [mem 0x000a0000-0x000effff] [ 0.000000] PM: Registered nosave memory: [mem 0x000f0000-0x000fffff] [ 0.000000] PM: Registered nosave memory: [mem 0xbfffd000-0xbfffffff] [ 0.000000] PM: Registered nosave memory: [mem 0xc0000000-0xfffbbfff] [ 0.000000] PM: Registered nosave memory: [mem 0xfffbc000-0xffffffff] [ 0.000000] e820: [mem 0xc0000000-0xfffbbfff] available for PCI devices [ 0.000000] Booting paravirtualized kernel on KVM [ 0.000000] clocksource: refined-jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604462750000 ns [ 0.000000] setup_percpu: NR_CPUS:64 nr_cpumask_bits:64 nr_cpu_ids:2 nr_node_ids:1 [ 0.000000] PERCPU: Embedded 42 pages/cpu @ffff8801db200000 s132680 r8192 d31160 u1048576 [ 0.000000] Built 1 zonelists in Zone order, mobility grouping on. Total pages: 1935238 [ 0.000000] Kernel command line: BOOT_IMAGE=/vmlinuz root=/dev/sda1 console=ttyS0 earlyprintk=serial vsyscall=native rodata=n ftrace_dump_on_oops=orig_cpu oops=panic panic_on_warn=1 nmi_watchdog=panic panic=86400 workqueue.watchdog_thresh=120 [ 0.000000] PID hash table entries: 4096 (order: 3, 32768 bytes) [ 0.000000] Dentry cache hash table entries: 1048576 (order: 11, 8388608 bytes) [ 0.000000] Inode-cache hash table entries: 524288 (order: 10, 4194304 bytes) [ 0.000000] ================================================================== [ 0.000000] BUG: KASAN: stack-out-of-bounds in reserve_bootmem_region+0xdf/0x130 [ 0.000000] Write of size 8 at addr ffffea0000047ce0 by task swapper/0 [ 0.000000] [ 0.000000] CPU: 0 PID: 0 Comm: swapper Not tainted 4.4.108-g55b3b8c #7 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 8e54d6529f5c24d2 ffffffff84207ce8 ffffffff81d02e5d [ 0.000000] ffffea0000047ce0 ffffea0000047ce0 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d20 ffffffff814fb329 ffffea0000047ce0 [ 0.000000] Call Trace: [ 0.000000] [] dump_stack+0xc1/0x124 [ 0.000000] [] print_address_description+0x189/0x260 [ 0.000000] [] kasan_report+0x285/0x370 [ 0.000000] [] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] free_all_bootmem+0xf2/0x24d [ 0.000000] [] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [] ? dmar_table_detect+0x60/0x60 [ 0.000000] [] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [] mem_init+0x13/0x74 [ 0.000000] [] start_kernel+0x31d/0x6e9 [ 0.000000] [] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [] x86_64_start_kernel+0x140/0x163 [ 0.000000] [ 0.000000] [ 0.000000] Memory state around the buggy address: [ 0.000000] ffffea0000047b80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ffffea0000047c00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] >ffffea0000047c80: 00 00 00 00 00 00 f1 f1 f1 f1 00 00 f2 f2 00 00 [ 0.000000] ^ [ 0.000000] ffffea0000047d00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ffffea0000047d80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ================================================================== [ 0.000000] Disabling lock debugging due to kernel taint [ 0.000000] Kernel panic - not syncing: panic_on_warn set ... [ 0.000000] [ 0.000000] CPU: 0 PID: 0 Comm: swapper Tainted: G B 4.4.108-g55b3b8c #7 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 8e54d6529f5c24d2 ffffffff84207c40 ffffffff81d02e5d [ 0.000000] ffffffff83fb34b5 ffffffff84207d18 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d08 ffffffff81417caa 0000000041b58ab3 [ 0.000000] Call Trace: [ 0.000000] [] dump_stack+0xc1/0x124 [ 0.000000] [] panic+0x1aa/0x388 [ 0.000000] [] ? percpu_up_read.constprop.45+0xe1/0xe1 [ 0.000000] [] kasan_end_report+0x50/0x50 [ 0.000000] [] kasan_report+0x15c/0x370 [ 0.000000] [] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] free_all_bootmem+0xf2/0x24d [ 0.000000] [] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [] ? dmar_table_detect+0x60/0x60 [ 0.000000] [] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [] mem_init+0x13/0x74 [ 0.000000] [] start_kernel+0x31d/0x6e9 [ 0.000000] [] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [] x86_64_start_kernel+0x140/0x163 [ 0.000000] Rebooting in 86400 seconds.. [ 0.000000] ACPI MEMORY or I/O RESET_REG. SeaBIOS (version 1.8.2-20171012_061934-google) Total RAM Size = 0x00000001e0000000 = 7680 MiB CPUs found: 2 Max CPUs supported: 2 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 0x000f3050: PCHS=0/0/0 translation=lba LCHS=520/128/63 s=4194304 Booting from Hard Disk 0... early console in decompress_kernel input_data: 0x00000000039be26e input_len: 0x0000000001424e03 output: 0x0000000001000000 output_len: 0x0000000003dcea40 run_size: 0x0000000005504000 Decompressing Linux... Parsing ELF... done. Booting the kernel. [ 0.000000] Initializing cgroup subsys cpuset [ 0.000000] Initializing cgroup subsys cpu [ 0.000000] Initializing cgroup subsys cpuacct [ 0.000000] Initializing cgroup subsys schedtune [ 0.000000] Linux version 4.4.108-g55b3b8c (syzkaller@ci) (gcc version 7.1.1 20170620 (GCC) ) #7 SMP PREEMPT Fri Dec 29 21:50:38 UTC 2017 [ 0.000000] Command line: BOOT_IMAGE=/vmlinuz root=/dev/sda1 console=ttyS0 earlyprintk=serial vsyscall=native rodata=n ftrace_dump_on_oops=orig_cpu oops=panic panic_on_warn=1 nmi_watchdog=panic panic=86400 workqueue.watchdog_thresh=120 [ 0.000000] KERNEL supported cpus: [ 0.000000] Intel GenuineIntel [ 0.000000] AMD AuthenticAMD [ 0.000000] Centaur CentaurHauls [ 0.000000] x86/fpu: xstate_offset[2]: 576, xstate_sizes[2]: 256 [ 0.000000] x86/fpu: Supporting XSAVE feature 0x01: 'x87 floating point registers' [ 0.000000] x86/fpu: Supporting XSAVE feature 0x02: 'SSE registers' [ 0.000000] x86/fpu: Supporting XSAVE feature 0x04: 'AVX registers' [ 0.000000] x86/fpu: Enabled xstate features 0x7, context size is 832 bytes, using 'standard' format. [ 0.000000] x86/fpu: Using 'eager' FPU context switches. [ 0.000000] e820: BIOS-provided physical RAM map: [ 0.000000] BIOS-e820: [mem 0x0000000000000000-0x000000000009fbff] usable [ 0.000000] BIOS-e820: [mem 0x000000000009fc00-0x000000000009ffff] reserved [ 0.000000] BIOS-e820: [mem 0x00000000000f0000-0x00000000000fffff] reserved [ 0.000000] BIOS-e820: [mem 0x0000000000100000-0x00000000bfffcfff] usable [ 0.000000] BIOS-e820: [mem 0x00000000bfffd000-0x00000000bfffffff] reserved [ 0.000000] BIOS-e820: [mem 0x00000000fffbc000-0x00000000ffffffff] reserved [ 0.000000] BIOS-e820: [mem 0x0000000100000000-0x000000021fffffff] usable [ 0.000000] bootconsole [earlyser0] enabled [ 0.000000] NX (Execute Disable) protection: active [ 0.000000] SMBIOS 2.4 present. [ 0.000000] Hypervisor detected: KVM [ 0.000000] e820: last_pfn = 0x220000 max_arch_pfn = 0x400000000 [ 0.000000] x86/PAT: Configuration [0-7]: WB WC UC- UC WB WC UC- WT [ 0.000000] e820: last_pfn = 0xbfffd max_arch_pfn = 0x400000000 [ 0.000000] found SMP MP-table at [mem 0x000f32c0-0x000f32cf] mapped at [ffff8800000f32c0] [ 0.000000] Scanning 1 areas for low memory corruption [ 0.000000] Using GB pages for direct mapping [ 0.000000] ACPI: Early table checksum verification disabled [ 0.000000] ACPI: RSDP 0x00000000000F3090 000014 (v00 Google) [ 0.000000] ACPI: RSDT 0x00000000BFFFDC70 000034 (v01 Google GOOGRSDT 00000001 GOOG 00000001) [ 0.000000] ACPI: FACP 0x00000000BFFFFF00 0000F4 (v02 Google GOOGFACP 00000001 GOOG 00000001) [ 0.000000] ACPI: DSDT 0x00000000BFFFDCB0 0017B2 (v01 Google GOOGDSDT 00000001 GOOG 00000001) [ 0.000000] ACPI: FACS 0x00000000BFFFFEC0 000040 [ 0.000000] ACPI: FACS 0x00000000BFFFFEC0 000040 [ 0.000000] ACPI: SSDT 0x00000000BFFFF590 000930 (v01 Google GOOGSSDT 00000001 GOOG 00000001) [ 0.000000] ACPI: APIC 0x00000000BFFFF4A0 000076 (v01 Google GOOGAPIC 00000001 GOOG 00000001) [ 0.000000] ACPI: WAET 0x00000000BFFFF470 000028 (v01 Google GOOGWAET 00000001 GOOG 00000001) [ 0.000000] kvm-clock: Using msrs 4b564d01 and 4b564d00 [ 0.000000] kvm-clock: cpu 0, msr 2:1fffd001, primary cpu clock [ 0.000000] kvm-clock: using sched offset of 1418938886 cycles [ 0.000000] clocksource: kvm-clock: mask: 0xffffffffffffffff max_cycles: 0x1cd42e4dffb, max_idle_ns: 881590591483 ns [ 0.000000] Zone ranges: [ 0.000000] DMA [mem 0x0000000000001000-0x0000000000ffffff] [ 0.000000] DMA32 [mem 0x0000000001000000-0x00000000ffffffff] [ 0.000000] Normal [mem 0x0000000100000000-0x000000021fffffff] [ 0.000000] Movable zone start for each node [ 0.000000] Early memory node ranges [ 0.000000] node 0: [mem 0x0000000000001000-0x000000000009efff] [ 0.000000] node 0: [mem 0x0000000000100000-0x00000000bfffcfff] [ 0.000000] node 0: [mem 0x0000000100000000-0x000000021fffffff] [ 0.000000] Initmem setup node 0 [mem 0x0000000000001000-0x000000021fffffff] [ 0.000000] kasan: KernelAddressSanitizer initialized [ 0.000000] ACPI: PM-Timer IO Port: 0xb008 [ 0.000000] ACPI: LAPIC_NMI (acpi_id[0xff] dfl dfl lint[0x1]) [ 0.000000] IOAPIC[0]: apic_id 0, version 17, address 0xfec00000, GSI 0-23 [ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 5 global_irq 5 high level) [ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 9 global_irq 9 high level) [ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 10 global_irq 10 high level) [ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 11 global_irq 11 high level) [ 0.000000] Using ACPI (MADT) for SMP configuration information [ 0.000000] smpboot: Allowing 2 CPUs, 0 hotplug CPUs [ 0.000000] PM: Registered nosave memory: [mem 0x00000000-0x00000fff] [ 0.000000] PM: Registered nosave memory: [mem 0x0009f000-0x0009ffff] [ 0.000000] PM: Registered nosave memory: [mem 0x000a0000-0x000effff] [ 0.000000] PM: Registered nosave memory: [mem 0x000f0000-0x000fffff] [ 0.000000] PM: Registered nosave memory: [mem 0xbfffd000-0xbfffffff] [ 0.000000] PM: Registered nosave memory: [mem 0xc0000000-0xfffbbfff] [ 0.000000] PM: Registered nosave memory: [mem 0xfffbc000-0xffffffff] [ 0.000000] e820: [mem 0xc0000000-0xfffbbfff] available for PCI devices [ 0.000000] Booting paravirtualized kernel on KVM [ 0.000000] clocksource: refined-jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604462750000 ns [ 0.000000] setup_percpu: NR_CPUS:64 nr_cpumask_bits:64 nr_cpu_ids:2 nr_node_ids:1 [ 0.000000] PERCPU: Embedded 42 pages/cpu @ffff8801db200000 s132680 r8192 d31160 u1048576 [ 0.000000] Built 1 zonelists in Zone order, mobility grouping on. Total pages: 1935238 [ 0.000000] Kernel command line: BOOT_IMAGE=/vmlinuz root=/dev/sda1 console=ttyS0 earlyprintk=serial vsyscall=native rodata=n ftrace_dump_on_oops=orig_cpu oops=panic panic_on_warn=1 nmi_watchdog=panic panic=86400 workqueue.watchdog_thresh=120 [ 0.000000] PID hash table entries: 4096 (order: 3, 32768 bytes) [ 0.000000] Dentry cache hash table entries: 1048576 (order: 11, 8388608 bytes) [ 0.000000] Inode-cache hash table entries: 524288 (order: 10, 4194304 bytes) [ 0.000000] ================================================================== [ 0.000000] BUG: KASAN: stack-out-of-bounds in reserve_bootmem_region+0xdf/0x130 [ 0.000000] Write of size 8 at addr ffffea0000047ce0 by task swapper/0 [ 0.000000] [ 0.000000] CPU: 0 PID: 0 Comm: swapper Not tainted 4.4.108-g55b3b8c #7 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 86d7be4897df0cc8 ffffffff84207ce8 ffffffff81d02e5d [ 0.000000] ffffea0000047ce0 ffffea0000047ce0 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d20 ffffffff814fb329 ffffea0000047ce0 [ 0.000000] Call Trace: [ 0.000000] [] dump_stack+0xc1/0x124 [ 0.000000] [] print_address_description+0x189/0x260 [ 0.000000] [] kasan_report+0x285/0x370 [ 0.000000] [] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] free_all_bootmem+0xf2/0x24d [ 0.000000] [] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [] ? dmar_table_detect+0x60/0x60 [ 0.000000] [] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [] mem_init+0x13/0x74 [ 0.000000] [] start_kernel+0x31d/0x6e9 [ 0.000000] [] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [] x86_64_start_kernel+0x140/0x163 [ 0.000000] [ 0.000000] [ 0.000000] Memory state around the buggy address: [ 0.000000] ffffea0000047b80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ffffea0000047c00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] >ffffea0000047c80: 00 00 00 00 00 00 f1 f1 f1 f1 00 00 f2 f2 00 00 [ 0.000000] ^ [ 0.000000] ffffea0000047d00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ffffea0000047d80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ================================================================== [ 0.000000] Disabling lock debugging due to kernel taint [ 0.000000] Kernel panic - not syncing: panic_on_warn set ... [ 0.000000] [ 0.000000] CPU: 0 PID: 0 Comm: swapper Tainted: G B 4.4.108-g55b3b8c #7 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 86d7be4897df0cc8 ffffffff84207c40 ffffffff81d02e5d [ 0.000000] ffffffff83fb34b5 ffffffff84207d18 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d08 ffffffff81417caa 0000000041b58ab3 [ 0.000000] Call Trace: [ 0.000000] [] dump_stack+0xc1/0x124 [ 0.000000] [] panic+0x1aa/0x388 [ 0.000000] [] ? percpu_up_read.constprop.45+0xe1/0xe1 [ 0.000000] [] kasan_end_report+0x50/0x50 [ 0.000000] [] kasan_report+0x15c/0x370 [ 0.000000] [] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] free_all_bootmem+0xf2/0x24d [ 0.000000] [] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [] ? dmar_table_detect+0x60/0x60 [ 0.000000] [] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [] mem_init+0x13/0x74 [ 0.000000] [] start_kernel+0x31d/0x6e9 [ 0.000000] [] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [] x86_64_start_kernel+0x140/0x163 [ 0.000000] Rebooting in 86400 seconds.. [ 0.000000] ACPI MEMORY or I/O RESET_REG. SeaBIOS (version 1.8.2-20171012_061934-google) Total RAM Size = 0x00000001e0000000 = 7680 MiB CPUs found: 2 Max CPUs supported: 2 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 0x000f3050: PCHS=0/0/0 translation=lba LCHS=520/128/63 s=4194304 Booting from Hard Disk 0... early console in decompress_kernel input_data: 0x00000000039be26e input_len: 0x0000000001424e03 output: 0x0000000001000000 output_len: 0x0000000003dcea40 run_size: 0x0000000005504000 Decompressing Linux... Parsing ELF... done. Booting the kernel. [ 0.000000] Initializing cgroup subsys cpuset [ 0.000000] Initializing cgroup subsys cpu [ 0.000000] Initializing cgroup subsys cpuacct [ 0.000000] Initializing cgroup subsys schedtune [ 0.000000] Linux version 4.4.108-g55b3b8c (syzkaller@ci) (gcc version 7.1.1 20170620 (GCC) ) #7 SMP PREEMPT Fri Dec 29 21:50:38 UTC 2017 [ 0.000000] Command line: BOOT_IMAGE=/vmlinuz root=/dev/sda1 console=ttyS0 earlyprintk=serial vsyscall=native rodata=n ftrace_dump_on_oops=orig_cpu oops=panic panic_on_warn=1 nmi_watchdog=panic panic=86400 workqueue.watchdog_thresh=120 [ 0.000000] KERNEL supported cpus: [ 0.000000] Intel GenuineIntel [ 0.000000] AMD AuthenticAMD [ 0.000000] Centaur CentaurHauls [ 0.000000] x86/fpu: xstate_offset[2]: 576, xstate_sizes[2]: 256 [ 0.000000] x86/fpu: Supporting XSAVE feature 0x01: 'x87 floating point registers' [ 0.000000] x86/fpu: Supporting XSAVE feature 0x02: 'SSE registers' [ 0.000000] x86/fpu: Supporting XSAVE feature 0x04: 'AVX registers' [ 0.000000] x86/fpu: Enabled xstate features 0x7, context size is 832 bytes, using 'standard' format. [ 0.000000] x86/fpu: Using 'eager' FPU context switches. [ 0.000000] e820: BIOS-provided physical RAM map: [ 0.000000] BIOS-e820: [mem 0x0000000000000000-0x000000000009fbff] usable [ 0.000000] BIOS-e820: [mem 0x000000000009fc00-0x000000000009ffff] reserved [ 0.000000] BIOS-e820: [mem 0x00000000000f0000-0x00000000000fffff] reserved [ 0.000000] BIOS-e820: [mem 0x0000000000100000-0x00000000bfffcfff] usable [ 0.000000] BIOS-e820: [mem 0x00000000bfffd000-0x00000000bfffffff] reserved [ 0.000000] BIOS-e820: [mem 0x00000000fffbc000-0x00000000ffffffff] reserved [ 0.000000] BIOS-e820: [mem 0x0000000100000000-0x000000021fffffff] usable [ 0.000000] bootconsole [earlyser0] enabled [ 0.000000] NX (Execute Disable) protection: active [ 0.000000] SMBIOS 2.4 present. [ 0.000000] Hypervisor detected: KVM [ 0.000000] e820: last_pfn = 0x220000 max_arch_pfn = 0x400000000 [ 0.000000] x86/PAT: Configuration [0-7]: WB WC UC- UC WB WC UC- WT [ 0.000000] e820: last_pfn = 0xbfffd max_arch_pfn = 0x400000000 [ 0.000000] found SMP MP-table at [mem 0x000f32c0-0x000f32cf] mapped at [ffff8800000f32c0] [ 0.000000] Scanning 1 areas for low memory corruption [ 0.000000] Using GB pages for direct mapping [ 0.000000] ACPI: Early table checksum verification disabled [ 0.000000] ACPI: RSDP 0x00000000000F3090 000014 (v00 Google) [ 0.000000] ACPI: RSDT 0x00000000BFFFDC70 000034 (v01 Google GOOGRSDT 00000001 GOOG 00000001) [ 0.000000] ACPI: FACP 0x00000000BFFFFF00 0000F4 (v02 Google GOOGFACP 00000001 GOOG 00000001) [ 0.000000] ACPI: DSDT 0x00000000BFFFDCB0 0017B2 (v01 Google GOOGDSDT 00000001 GOOG 00000001) [ 0.000000] ACPI: FACS 0x00000000BFFFFEC0 000040 [ 0.000000] ACPI: FACS 0x00000000BFFFFEC0 000040 [ 0.000000] ACPI: SSDT 0x00000000BFFFF590 000930 (v01 Google GOOGSSDT 00000001 GOOG 00000001) [ 0.000000] ACPI: APIC 0x00000000BFFFF4A0 000076 (v01 Google GOOGAPIC 00000001 GOOG 00000001) [ 0.000000] ACPI: WAET 0x00000000BFFFF470 000028 (v01 Google GOOGWAET 00000001 GOOG 00000001) [ 0.000000] kvm-clock: Using msrs 4b564d01 and 4b564d00 [ 0.000000] kvm-clock: cpu 0, msr 2:1fffd001, primary cpu clock [ 0.000000] kvm-clock: using sched offset of 1378558952 cycles [ 0.000000] clocksource: kvm-clock: mask: 0xffffffffffffffff max_cycles: 0x1cd42e4dffb, max_idle_ns: 881590591483 ns [ 0.000000] Zone ranges: [ 0.000000] DMA [mem 0x0000000000001000-0x0000000000ffffff] [ 0.000000] DMA32 [mem 0x0000000001000000-0x00000000ffffffff] [ 0.000000] Normal [mem 0x0000000100000000-0x000000021fffffff] [ 0.000000] Movable zone start for each node [ 0.000000] Early memory node ranges [ 0.000000] node 0: [mem 0x0000000000001000-0x000000000009efff] [ 0.000000] node 0: [mem 0x0000000000100000-0x00000000bfffcfff] [ 0.000000] node 0: [mem 0x0000000100000000-0x000000021fffffff] [ 0.000000] Initmem setup node 0 [mem 0x0000000000001000-0x000000021fffffff] [ 0.000000] kasan: KernelAddressSanitizer initialized [ 0.000000] ACPI: PM-Timer IO Port: 0xb008 [ 0.000000] ACPI: LAPIC_NMI (acpi_id[0xff] dfl dfl lint[0x1]) [ 0.000000] IOAPIC[0]: apic_id 0, version 17, address 0xfec00000, GSI 0-23 [ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 5 global_irq 5 high level) [ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 9 global_irq 9 high level) [ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 10 global_irq 10 high level) [ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 11 global_irq 11 high level) [ 0.000000] Using ACPI (MADT) for SMP configuration information [ 0.000000] smpboot: Allowing 2 CPUs, 0 hotplug CPUs [ 0.000000] PM: Registered nosave memory: [mem 0x00000000-0x00000fff] [ 0.000000] PM: Registered nosave memory: [mem 0x0009f000-0x0009ffff] [ 0.000000] PM: Registered nosave memory: [mem 0x000a0000-0x000effff] [ 0.000000] PM: Registered nosave memory: [mem 0x000f0000-0x000fffff] [ 0.000000] PM: Registered nosave memory: [mem 0xbfffd000-0xbfffffff] [ 0.000000] PM: Registered nosave memory: [mem 0xc0000000-0xfffbbfff] [ 0.000000] PM: Registered nosave memory: [mem 0xfffbc000-0xffffffff] [ 0.000000] e820: [mem 0xc0000000-0xfffbbfff] available for PCI devices [ 0.000000] Booting paravirtualized kernel on KVM [ 0.000000] clocksource: refined-jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604462750000 ns [ 0.000000] setup_percpu: NR_CPUS:64 nr_cpumask_bits:64 nr_cpu_ids:2 nr_node_ids:1 [ 0.000000] PERCPU: Embedded 42 pages/cpu @ffff8801db200000 s132680 r8192 d31160 u1048576 [ 0.000000] Built 1 zonelists in Zone order, mobility grouping on. Total pages: 1935238 [ 0.000000] Kernel command line: BOOT_IMAGE=/vmlinuz root=/dev/sda1 console=ttyS0 earlyprintk=serial vsyscall=native rodata=n ftrace_dump_on_oops=orig_cpu oops=panic panic_on_warn=1 nmi_watchdog=panic panic=86400 workqueue.watchdog_thresh=120 [ 0.000000] PID hash table entries: 4096 (order: 3, 32768 bytes) [ 0.000000] Dentry cache hash table entries: 1048576 (order: 11, 8388608 bytes) [ 0.000000] Inode-cache hash table entries: 524288 (order: 10, 4194304 bytes) [ 0.000000] ================================================================== [ 0.000000] BUG: KASAN: stack-out-of-bounds in reserve_bootmem_region+0xdf/0x130 [ 0.000000] Write of size 8 at addr ffffea0000047ce0 by task swapper/0 [ 0.000000] [ 0.000000] CPU: 0 PID: 0 Comm: swapper Not tainted 4.4.108-g55b3b8c #7 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 8152d7b7925a2637 ffffffff84207ce8 ffffffff81d02e5d [ 0.000000] ffffea0000047ce0 ffffea0000047ce0 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d20 ffffffff814fb329 ffffea0000047ce0 [ 0.000000] Call Trace: [ 0.000000] [] dump_stack+0xc1/0x124 [ 0.000000] [] print_address_description+0x189/0x260 [ 0.000000] [] kasan_report+0x285/0x370 [ 0.000000] [] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] free_all_bootmem+0xf2/0x24d [ 0.000000] [] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [] ? dmar_table_detect+0x60/0x60 [ 0.000000] [] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [] mem_init+0x13/0x74 [ 0.000000] [] start_kernel+0x31d/0x6e9 [ 0.000000] [] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [] x86_64_start_kernel+0x140/0x163 [ 0.000000] [ 0.000000] [ 0.000000] Memory state around the buggy address: [ 0.000000] ffffea0000047b80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ffffea0000047c00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] >ffffea0000047c80: 00 00 00 00 00 00 f1 f1 f1 f1 00 00 f2 f2 00 00 [ 0.000000] ^ [ 0.000000] ffffea0000047d00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ffffea0000047d80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ================================================================== [ 0.000000] Disabling lock debugging due to kernel taint [ 0.000000] Kernel panic - not syncing: panic_on_warn set ... [ 0.000000] [ 0.000000] CPU: 0 PID: 0 Comm: swapper Tainted: G B 4.4.108-g55b3b8c #7 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 8152d7b7925a2637 ffffffff84207c40 ffffffff81d02e5d [ 0.000000] ffffffff83fb34b5 ffffffff84207d18 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d08 ffffffff81417caa 0000000041b58ab3 [ 0.000000] Call Trace: [ 0.000000] [] dump_stack+0xc1/0x124 [ 0.000000] [] panic+0x1aa/0x388 [ 0.000000] [] ? percpu_up_read.constprop.45+0xe1/0xe1 [ 0.000000] [] kasan_end_report+0x50/0x50 [ 0.000000] [] kasan_report+0x15c/0x370 [ 0.000000] [] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] free_all_bootmem+0xf2/0x24d [ 0.000000] [] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [] ? dmar_table_detect+0x60/0x60 [ 0.000000] [] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [] mem_init+0x13/0x74 [ 0.000000] [] start_kernel+0x31d/0x6e9 [ 0.000000] [] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [] x86_64_start_kernel+0x140/0x163 [ 0.000000] Rebooting in 86400 seconds.. [ 0.000000] ACPI MEMORY or I/O RESET_REG. SeaBIOS (version 1.8.2-20171012_061934-google) Total RAM Size = 0x00000001e0000000 = 7680 MiB CPUs found: 2 Max CPUs supported: 2 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 0x000f3050: PCHS=0/0/0 translation=lba LCHS=520/128/63 s=4194304 Booting from Hard Disk 0... early console in decompress_kernel input_data: 0x00000000039be26e input_len: 0x0000000001424e03 output: 0x0000000001000000 output_len: 0x0000000003dcea40 run_size: 0x0000000005504000 Decompressing Linux... Parsing ELF... done. Booting the kernel. [ 0.000000] Initializing cgroup subsys cpuset [ 0.000000] Initializing cgroup subsys cpu [ 0.000000] Initializing cgroup subsys cpuacct [ 0.000000] Initializing cgroup subsys schedtune [ 0.000000] Linux version 4.4.108-g55b3b8c (syzkaller@ci) (gcc version 7.1.1 20170620 (GCC) ) #7 SMP PREEMPT Fri Dec 29 21:50:38 UTC 2017 [ 0.000000] Command line: BOOT_IMAGE=/vmlinuz root=/dev/sda1 console=ttyS0 earlyprintk=serial vsyscall=native rodata=n ftrace_dump_on_oops=orig_cpu oops=panic panic_on_warn=1 nmi_watchdog=panic panic=86400 workqueue.watchdog_thresh=120 [ 0.000000] KERNEL supported cpus: [ 0.000000] Intel GenuineIntel [ 0.000000] AMD AuthenticAMD [ 0.000000] Centaur CentaurHauls [ 0.000000] x86/fpu: xstate_offset[2]: 576, xstate_sizes[2]: 256 [ 0.000000] x86/fpu: Supporting XSAVE feature 0x01: 'x87 floating point registers' [ 0.000000] x86/fpu: Supporting XSAVE feature 0x02: 'SSE registers' [ 0.000000] x86/fpu: Supporting XSAVE feature 0x04: 'AVX registers' [ 0.000000] x86/fpu: Enabled xstate features 0x7, context size is 832 bytes, using 'standard' format. [ 0.000000] x86/fpu: Using 'eager' FPU context switches. [ 0.000000] e820: BIOS-provided physical RAM map: [ 0.000000] BIOS-e820: [mem 0x0000000000000000-0x000000000009fbff] usable [ 0.000000] BIOS-e820: [mem 0x000000000009fc00-0x000000000009ffff] reserved [ 0.000000] BIOS-e820: [mem 0x00000000000f0000-0x00000000000fffff] reserved [ 0.000000] BIOS-e820: [mem 0x0000000000100000-0x00000000bfffcfff] usable [ 0.000000] BIOS-e820: [mem 0x00000000bfffd000-0x00000000bfffffff] reserved [ 0.000000] BIOS-e820: [mem 0x00000000fffbc000-0x00000000ffffffff] reserved [ 0.000000] BIOS-e820: [mem 0x0000000100000000-0x000000021fffffff] usable [ 0.000000] bootconsole [earlyser0] enabled [ 0.000000] NX (Execute Disable) protection: active [ 0.000000] SMBIOS 2.4 present. [ 0.000000] Hypervisor detected: KVM [ 0.000000] e820: last_pfn = 0x220000 max_arch_pfn = 0x400000000 [ 0.000000] x86/PAT: Configuration [0-7]: WB WC UC- UC WB WC UC- WT [ 0.000000] e820: last_pfn = 0xbfffd max_arch_pfn = 0x400000000 [ 0.000000] found SMP MP-table at [mem 0x000f32c0-0x000f32cf] mapped at [ffff8800000f32c0] [ 0.000000] Scanning 1 areas for low memory corruption [ 0.000000] Using GB pages for direct mapping [ 0.000000] ACPI: Early table checksum verification disabled [ 0.000000] ACPI: RSDP 0x00000000000F3090 000014 (v00 Google) [ 0.000000] ACPI: RSDT 0x00000000BFFFDC70 000034 (v01 Google GOOGRSDT 00000001 GOOG 00000001) [ 0.000000] ACPI: FACP 0x00000000BFFFFF00 0000F4 (v02 Google GOOGFACP 00000001 GOOG 00000001) [ 0.000000] ACPI: DSDT 0x00000000BFFFDCB0 0017B2 (v01 Google GOOGDSDT 00000001 GOOG 00000001) [ 0.000000] ACPI: FACS 0x00000000BFFFFEC0 000040 [ 0.000000] ACPI: FACS 0x00000000BFFFFEC0 000040 [ 0.000000] ACPI: SSDT 0x00000000BFFFF590 000930 (v01 Google GOOGSSDT 00000001 GOOG 00000001) [ 0.000000] ACPI: APIC 0x00000000BFFFF4A0 000076 (v01 Google GOOGAPIC 00000001 GOOG 00000001) [ 0.000000] ACPI: WAET 0x00000000BFFFF470 000028 (v01 Google GOOGWAET 00000001 GOOG 00000001) [ 0.000000] kvm-clock: Using msrs 4b564d01 and 4b564d00 [ 0.000000] kvm-clock: cpu 0, msr 2:1fffd001, primary cpu clock [ 0.000000] kvm-clock: using sched offset of 1189545349 cycles [ 0.000000] clocksource: kvm-clock: mask: 0xffffffffffffffff max_cycles: 0x1cd42e4dffb, max_idle_ns: 881590591483 ns [ 0.000000] Zone ranges: [ 0.000000] DMA [mem 0x0000000000001000-0x0000000000ffffff] [ 0.000000] DMA32 [mem 0x0000000001000000-0x00000000ffffffff] [ 0.000000] Normal [mem 0x0000000100000000-0x000000021fffffff] [ 0.000000] Movable zone start for each node [ 0.000000] Early memory node ranges [ 0.000000] node 0: [mem 0x0000000000001000-0x000000000009efff] [ 0.000000] node 0: [mem 0x0000000000100000-0x00000000bfffcfff] [ 0.000000] node 0: [mem 0x0000000100000000-0x000000021fffffff] [ 0.000000] Initmem setup node 0 [mem 0x0000000000001000-0x000000021fffffff] [ 0.000000] kasan: KernelAddressSanitizer initialized [ 0.000000] ACPI: PM-Timer IO Port: 0xb008 [ 0.000000] ACPI: LAPIC_NMI (acpi_id[0xff] dfl dfl lint[0x1]) [ 0.000000] IOAPIC[0]: apic_id 0, version 17, address 0xfec00000, GSI 0-23 [ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 5 global_irq 5 high level) [ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 9 global_irq 9 high level) [ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 10 global_irq 10 high level) [ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 11 global_irq 11 high level) [ 0.000000] Using ACPI (MADT) for SMP configuration information [ 0.000000] smpboot: Allowing 2 CPUs, 0 hotplug CPUs [ 0.000000] PM: Registered nosave memory: [mem 0x00000000-0x00000fff] [ 0.000000] PM: Registered nosave memory: [mem 0x0009f000-0x0009ffff] [ 0.000000] PM: Registered nosave memory: [mem 0x000a0000-0x000effff] [ 0.000000] PM: Registered nosave memory: [mem 0x000f0000-0x000fffff] [ 0.000000] PM: Registered nosave memory: [mem 0xbfffd000-0xbfffffff] [ 0.000000] PM: Registered nosave memory: [mem 0xc0000000-0xfffbbfff] [ 0.000000] PM: Registered nosave memory: [mem 0xfffbc000-0xffffffff] [ 0.000000] e820: [mem 0xc0000000-0xfffbbfff] available for PCI devices [ 0.000000] Booting paravirtualized kernel on KVM [ 0.000000] clocksource: refined-jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604462750000 ns [ 0.000000] setup_percpu: NR_CPUS:64 nr_cpumask_bits:64 nr_cpu_ids:2 nr_node_ids:1 [ 0.000000] PERCPU: Embedded 42 pages/cpu @ffff8801db200000 s132680 r8192 d31160 u1048576 [ 0.000000] Built 1 zonelists in Zone order, mobility grouping on. Total pages: 1935238 [ 0.000000] Kernel command line: BOOT_IMAGE=/vmlinuz root=/dev/sda1 console=ttyS0 earlyprintk=serial vsyscall=native rodata=n ftrace_dump_on_oops=orig_cpu oops=panic panic_on_warn=1 nmi_watchdog=panic panic=86400 workqueue.watchdog_thresh=120 [ 0.000000] PID hash table entries: 4096 (order: 3, 32768 bytes) [ 0.000000] Dentry cache hash table entries: 1048576 (order: 11, 8388608 bytes) [ 0.000000] Inode-cache hash table entries: 524288 (order: 10, 4194304 bytes) [ 0.000000] ================================================================== [ 0.000000] BUG: KASAN: stack-out-of-bounds in reserve_bootmem_region+0xdf/0x130 [ 0.000000] Write of size 8 at addr ffffea0000047ce0 by task swapper/0 [ 0.000000] [ 0.000000] CPU: 0 PID: 0 Comm: swapper Not tainted 4.4.108-g55b3b8c #7 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 674d80ca7854cf4a ffffffff84207ce8 ffffffff81d02e5d [ 0.000000] ffffea0000047ce0 ffffea0000047ce0 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d20 ffffffff814fb329 ffffea0000047ce0 [ 0.000000] Call Trace: [ 0.000000] [] dump_stack+0xc1/0x124 [ 0.000000] [] print_address_description+0x189/0x260 [ 0.000000] [] kasan_report+0x285/0x370 [ 0.000000] [] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] free_all_bootmem+0xf2/0x24d [ 0.000000] [] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [] ? dmar_table_detect+0x60/0x60 [ 0.000000] [] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [] mem_init+0x13/0x74 [ 0.000000] [] start_kernel+0x31d/0x6e9 [ 0.000000] [] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [] x86_64_start_kernel+0x140/0x163 [ 0.000000] [ 0.000000] [ 0.000000] Memory state around the buggy address: [ 0.000000] ffffea0000047b80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ffffea0000047c00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] >ffffea0000047c80: 00 00 00 00 00 00 f1 f1 f1 f1 00 00 f2 f2 00 00 [ 0.000000] ^ [ 0.000000] ffffea0000047d00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ffffea0000047d80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ================================================================== [ 0.000000] Disabling lock debugging due to kernel taint [ 0.000000] Kernel panic - not syncing: panic_on_warn set ... [ 0.000000] [ 0.000000] CPU: 0 PID: 0 Comm: swapper Tainted: G B 4.4.108-g55b3b8c #7 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 674d80ca7854cf4a ffffffff84207c40 ffffffff81d02e5d [ 0.000000] ffffffff83fb34b5 ffffffff84207d18 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d08 ffffffff81417caa 0000000041b58ab3 [ 0.000000] Call Trace: [ 0.000000] [] dump_stack+0xc1/0x124 [ 0.000000] [] panic+0x1aa/0x388 [ 0.000000] [] ? percpu_up_read.constprop.45+0xe1/0xe1 [ 0.000000] [] kasan_end_report+0x50/0x50 [ 0.000000] [] kasan_report+0x15c/0x370 [ 0.000000] [] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] free_all_bootmem+0xf2/0x24d [ 0.000000] [] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [] ? dmar_table_detect+0x60/0x60 [ 0.000000] [] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [] mem_init+0x13/0x74 [ 0.000000] [] start_kernel+0x31d/0x6e9 [ 0.000000] [] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [] x86_64_start_kernel+0x140/0x163 [ 0.000000] Rebooting in 86400 seconds.. [ 0.000000] ACPI MEMORY or I/O RESET_REG. SeaBIOS (version 1.8.2-20171012_061934-google) Total RAM Size = 0x00000001e0000000 = 7680 MiB CPUs found: 2 Max CPUs supported: 2 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 0x000f3050: PCHS=0/0/0 translation=lba LCHS=520/128/63 s=4194304 Booting from Hard Disk 0... early console in decompress_kernel input_data: 0x00000000039be26e input_len: 0x0000000001424e03 output: 0x0000000001000000 output_len: 0x0000000003dcea40 run_size: 0x0000000005504000 Decompressing Linux... Parsing ELF... done. Booting the kernel. [ 0.000000] Initializing cgroup subsys cpuset [ 0.000000] Initializing cgroup subsys cpu [ 0.000000] Initializing cgroup subsys cpuacct [ 0.000000] Initializing cgroup subsys schedtune [ 0.000000] Linux version 4.4.108-g55b3b8c (syzkaller@ci) (gcc version 7.1.1 20170620 (GCC) ) #7 SMP PREEMPT Fri Dec 29 21:50:38 UTC 2017 [ 0.000000] Command line: BOOT_IMAGE=/vmlinuz root=/dev/sda1 console=ttyS0 earlyprintk=serial vsyscall=native rodata=n ftrace_dump_on_oops=orig_cpu oops=panic panic_on_warn=1 nmi_watchdog=panic panic=86400 workqueue.watchdog_thresh=120 [ 0.000000] KERNEL supported cpus: [ 0.000000] Intel GenuineIntel [ 0.000000] AMD AuthenticAMD [ 0.000000] Centaur CentaurHauls [ 0.000000] x86/fpu: xstate_offset[2]: 576, xstate_sizes[2]: 256 [ 0.000000] x86/fpu: Supporting XSAVE feature 0x01: 'x87 floating point registers' [ 0.000000] x86/fpu: Supporting XSAVE feature 0x02: 'SSE registers' [ 0.000000] x86/fpu: Supporting XSAVE feature 0x04: 'AVX registers' [ 0.000000] x86/fpu: Enabled xstate features 0x7, context size is 832 bytes, using 'standard' format. [ 0.000000] x86/fpu: Using 'eager' FPU context switches. [ 0.000000] e820: BIOS-provided physical RAM map: [ 0.000000] BIOS-e820: [mem 0x0000000000000000-0x000000000009fbff] usable [ 0.000000] BIOS-e820: [mem 0x000000000009fc00-0x000000000009ffff] reserved [ 0.000000] BIOS-e820: [mem 0x00000000000f0000-0x00000000000fffff] reserved [ 0.000000] BIOS-e820: [mem 0x0000000000100000-0x00000000bfffcfff] usable [ 0.000000] BIOS-e820: [mem 0x00000000bfffd000-0x00000000bfffffff] reserved [ 0.000000] BIOS-e820: [mem 0x00000000fffbc000-0x00000000ffffffff] reserved [ 0.000000] BIOS-e820: [mem 0x0000000100000000-0x000000021fffffff] usable [ 0.000000] bootconsole [earlyser0] enabled [ 0.000000] NX (Execute Disable) protection: active [ 0.000000] SMBIOS 2.4 present. [ 0.000000] Hypervisor detected: KVM [ 0.000000] e820: last_pfn = 0x220000 max_arch_pfn = 0x400000000 [ 0.000000] x86/PAT: Configuration [0-7]: WB WC UC- UC WB WC UC- WT [ 0.000000] e820: last_pfn = 0xbfffd max_arch_pfn = 0x400000000 [ 0.000000] found SMP MP-table at [mem 0x000f32c0-0x000f32cf] mapped at [ffff8800000f32c0] [ 0.000000] Scanning 1 areas for low memory corruption [ 0.000000] Using GB pages for direct mapping [ 0.000000] ACPI: Early table checksum verification disabled [ 0.000000] ACPI: RSDP 0x00000000000F3090 000014 (v00 Google) [ 0.000000] ACPI: RSDT 0x00000000BFFFDC70 000034 (v01 Google GOOGRSDT 00000001 GOOG 00000001) [ 0.000000] ACPI: FACP 0x00000000BFFFFF00 0000F4 (v02 Google GOOGFACP 00000001 GOOG 00000001) [ 0.000000] ACPI: DSDT 0x00000000BFFFDCB0 0017B2 (v01 Google GOOGDSDT 00000001 GOOG 00000001) [ 0.000000] ACPI: FACS 0x00000000BFFFFEC0 000040 [ 0.000000] ACPI: FACS 0x00000000BFFFFEC0 000040 [ 0.000000] ACPI: SSDT 0x00000000BFFFF590 000930 (v01 Google GOOGSSDT 00000001 GOOG 00000001) [ 0.000000] ACPI: APIC 0x00000000BFFFF4A0 000076 (v01 Google GOOGAPIC 00000001 GOOG 00000001) [ 0.000000] ACPI: WAET 0x00000000BFFFF470 000028 (v01 Google GOOGWAET 00000001 GOOG 00000001) [ 0.000000] kvm-clock: Using msrs 4b564d01 and 4b564d00 [ 0.000000] kvm-clock: cpu 0, msr 2:1fffd001, primary cpu clock [ 0.000000] kvm-clock: using sched offset of 1328096708 cycles [ 0.000000] clocksource: kvm-clock: mask: 0xffffffffffffffff max_cycles: 0x1cd42e4dffb, max_idle_ns: 881590591483 ns [ 0.000000] Zone ranges: [ 0.000000] DMA [mem 0x0000000000001000-0x0000000000ffffff] [ 0.000000] DMA32 [mem 0x0000000001000000-0x00000000ffffffff] [ 0.000000] Normal [mem 0x0000000100000000-0x000000021fffffff] [ 0.000000] Movable zone start for each node [ 0.000000] Early memory node ranges [ 0.000000] node 0: [mem 0x0000000000001000-0x000000000009efff] [ 0.000000] node 0: [mem 0x0000000000100000-0x00000000bfffcfff] [ 0.000000] node 0: [mem 0x0000000100000000-0x000000021fffffff] [ 0.000000] Initmem setup node 0 [mem 0x0000000000001000-0x000000021fffffff] [ 0.000000] kasan: KernelAddressSanitizer initialized [ 0.000000] ACPI: PM-Timer IO Port: 0xb008 [ 0.000000] ACPI: LAPIC_NMI (acpi_id[0xff] dfl dfl lint[0x1]) [ 0.000000] IOAPIC[0]: apic_id 0, version 17, address 0xfec00000, GSI 0-23 [ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 5 global_irq 5 high level) [ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 9 global_irq 9 high level) [ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 10 global_irq 10 high level) [ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 11 global_irq 11 high level) [ 0.000000] Using ACPI (MADT) for SMP configuration information [ 0.000000] smpboot: Allowing 2 CPUs, 0 hotplug CPUs [ 0.000000] PM: Registered nosave memory: [mem 0x00000000-0x00000fff] [ 0.000000] PM: Registered nosave memory: [mem 0x0009f000-0x0009ffff] [ 0.000000] PM: Registered nosave memory: [mem 0x000a0000-0x000effff] [ 0.000000] PM: Registered nosave memory: [mem 0x000f0000-0x000fffff] [ 0.000000] PM: Registered nosave memory: [mem 0xbfffd000-0xbfffffff] [ 0.000000] PM: Registered nosave memory: [mem 0xc0000000-0xfffbbfff] [ 0.000000] PM: Registered nosave memory: [mem 0xfffbc000-0xffffffff] [ 0.000000] e820: [mem 0xc0000000-0xfffbbfff] available for PCI devices [ 0.000000] Booting paravirtualized kernel on KVM [ 0.000000] clocksource: refined-jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604462750000 ns [ 0.000000] setup_percpu: NR_CPUS:64 nr_cpumask_bits:64 nr_cpu_ids:2 nr_node_ids:1 [ 0.000000] PERCPU: Embedded 42 pages/cpu @ffff8801db200000 s132680 r8192 d31160 u1048576 [ 0.000000] Built 1 zonelists in Zone order, mobility grouping on. Total pages: 1935238 [ 0.000000] Kernel command line: BOOT_IMAGE=/vmlinuz root=/dev/sda1 console=ttyS0 earlyprintk=serial vsyscall=native rodata=n ftrace_dump_on_oops=orig_cpu oops=panic panic_on_warn=1 nmi_watchdog=panic panic=86400 workqueue.watchdog_thresh=120 [ 0.000000] PID hash table entries: 4096 (order: 3, 32768 bytes) [ 0.000000] Dentry cache hash table entries: 1048576 (order: 11, 8388608 bytes) [ 0.000000] Inode-cache hash table entries: 524288 (order: 10, 4194304 bytes) [ 0.000000] ================================================================== [ 0.000000] BUG: KASAN: stack-out-of-bounds in reserve_bootmem_region+0xdf/0x130 [ 0.000000] Write of size 8 at addr ffffea0000047ce0 by task swapper/0 [ 0.000000] [ 0.000000] CPU: 0 PID: 0 Comm: swapper Not tainted 4.4.108-g55b3b8c #7 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 7a6cc8ed8b74176d ffffffff84207ce8 ffffffff81d02e5d [ 0.000000] ffffea0000047ce0 ffffea0000047ce0 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d20 ffffffff814fb329 ffffea0000047ce0 [ 0.000000] Call Trace: [ 0.000000] [] dump_stack+0xc1/0x124 [ 0.000000] [] print_address_description+0x189/0x260 [ 0.000000] [] kasan_report+0x285/0x370 [ 0.000000] [] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] free_all_bootmem+0xf2/0x24d [ 0.000000] [] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [] ? dmar_table_detect+0x60/0x60 [ 0.000000] [] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [] mem_init+0x13/0x74 [ 0.000000] [] start_kernel+0x31d/0x6e9 [ 0.000000] [] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [] x86_64_start_kernel+0x140/0x163 [ 0.000000] [ 0.000000] [ 0.000000] Memory state around the buggy address: [ 0.000000] ffffea0000047b80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ffffea0000047c00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] >ffffea0000047c80: 00 00 00 00 00 00 f1 f1 f1 f1 00 00 f2 f2 00 00 [ 0.000000] ^ [ 0.000000] ffffea0000047d00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ffffea0000047d80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ================================================================== [ 0.000000] Disabling lock debugging due to kernel taint [ 0.000000] Kernel panic - not syncing: panic_on_warn set ... [ 0.000000] [ 0.000000] CPU: 0 PID: 0 Comm: swapper Tainted: G B 4.4.108-g55b3b8c #7 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 7a6cc8ed8b74176d ffffffff84207c40 ffffffff81d02e5d [ 0.000000] ffffffff83fb34b5 ffffffff84207d18 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d08 ffffffff81417caa 0000000041b58ab3 [ 0.000000] Call Trace: [ 0.000000] [] dump_stack+0xc1/0x124 [ 0.000000] [] panic+0x1aa/0x388 [ 0.000000] [] ? percpu_up_read.constprop.45+0xe1/0xe1 [ 0.000000] [] kasan_end_report+0x50/0x50 [ 0.000000] [] kasan_report+0x15c/0x370 [ 0.000000] [] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] free_all_bootmem+0xf2/0x24d [ 0.000000] [] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [] ? dmar_table_detect+0x60/0x60 [ 0.000000] [] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [] mem_init+0x13/0x74 [ 0.000000] [] start_kernel+0x31d/0x6e9 [ 0.000000] [] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [] x86_64_start_kernel+0x140/0x163 [ 0.000000] Rebooting in 86400 seconds.. [ 0.000000] ACPI MEMORY or I/O RESET_REG. SeaBIOS (version 1.8.2-20171012_061934-google) Total RAM Size = 0x00000001e0000000 = 7680 MiB CPUs found: 2 Max CPUs supported: 2 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 0x000f3050: PCHS=0/0/0 translation=lba LCHS=520/128/63 s=4194304 Booting from Hard Disk 0... early console in decompress_kernel input_data: 0x00000000039be26e input_len: 0x0000000001424e03 output: 0x0000000001000000 output_len: 0x0000000003dcea40 run_size: 0x0000000005504000 Decompressing Linux... Parsing ELF... done. Booting the kernel. [ 0.000000] Initializing cgroup subsys cpuset [ 0.000000] Initializing cgroup subsys cpu [ 0.000000] Initializing cgroup subsys cpuacct [ 0.000000] Initializing cgroup subsys schedtune [ 0.000000] Linux version 4.4.108-g55b3b8c (syzkaller@ci) (gcc version 7.1.1 20170620 (GCC) ) #7 SMP PREEMPT Fri Dec 29 21:50:38 UTC 2017 [ 0.000000] Command line: BOOT_IMAGE=/vmlinuz root=/dev/sda1 console=ttyS0 earlyprintk=serial vsyscall=native rodata=n ftrace_dump_on_oops=orig_cpu oops=panic panic_on_warn=1 nmi_watchdog=panic panic=86400 workqueue.watchdog_thresh=120 [ 0.000000] KERNEL supported cpus: [ 0.000000] Intel GenuineIntel [ 0.000000] AMD AuthenticAMD [ 0.000000] Centaur CentaurHauls [ 0.000000] x86/fpu: xstate_offset[2]: 576, xstate_sizes[2]: 256 [ 0.000000] x86/fpu: Supporting XSAVE feature 0x01: 'x87 floating point registers' [ 0.000000] x86/fpu: Supporting XSAVE feature 0x02: 'SSE registers' [ 0.000000] x86/fpu: Supporting XSAVE feature 0x04: 'AVX registers' [ 0.000000] x86/fpu: Enabled xstate features 0x7, context size is 832 bytes, using 'standard' format. [ 0.000000] x86/fpu: Using 'eager' FPU context switches. [ 0.000000] e820: BIOS-provided physical RAM map: [ 0.000000] BIOS-e820: [mem 0x0000000000000000-0x000000000009fbff] usable [ 0.000000] BIOS-e820: [mem 0x000000000009fc00-0x000000000009ffff] reserved [ 0.000000] BIOS-e820: [mem 0x00000000000f0000-0x00000000000fffff] reserved [ 0.000000] BIOS-e820: [mem 0x0000000000100000-0x00000000bfffcfff] usable [ 0.000000] BIOS-e820: [mem 0x00000000bfffd000-0x00000000bfffffff] reserved [ 0.000000] BIOS-e820: [mem 0x00000000fffbc000-0x00000000ffffffff] reserved [ 0.000000] BIOS-e820: [mem 0x0000000100000000-0x000000021fffffff] usable [ 0.000000] bootconsole [earlyser0] enabled [ 0.000000] NX (Execute Disable) protection: active [ 0.000000] SMBIOS 2.4 present. [ 0.000000] Hypervisor detected: KVM [ 0.000000] e820: last_pfn = 0x220000 max_arch_pfn = 0x400000000 [ 0.000000] x86/PAT: Configuration [0-7]: WB WC UC- UC WB WC UC- WT [ 0.000000] e820: last_pfn = 0xbfffd max_arch_pfn = 0x400000000 [ 0.000000] found SMP MP-table at [mem 0x000f32c0-0x000f32cf] mapped at [ffff8800000f32c0] [ 0.000000] Scanning 1 areas for low memory corruption [ 0.000000] Using GB pages for direct mapping [ 0.000000] ACPI: Early table checksum verification disabled [ 0.000000] ACPI: RSDP 0x00000000000F3090 000014 (v00 Google) [ 0.000000] ACPI: RSDT 0x00000000BFFFDC70 000034 (v01 Google GOOGRSDT 00000001 GOOG 00000001) [ 0.000000] ACPI: FACP 0x00000000BFFFFF00 0000F4 (v02 Google GOOGFACP 00000001 GOOG 00000001) [ 0.000000] ACPI: DSDT 0x00000000BFFFDCB0 0017B2 (v01 Google GOOGDSDT 00000001 GOOG 00000001) [ 0.000000] ACPI: FACS 0x00000000BFFFFEC0 000040 [ 0.000000] ACPI: FACS 0x00000000BFFFFEC0 000040 [ 0.000000] ACPI: SSDT 0x00000000BFFFF590 000930 (v01 Google GOOGSSDT 00000001 GOOG 00000001) [ 0.000000] ACPI: APIC 0x00000000BFFFF4A0 000076 (v01 Google GOOGAPIC 00000001 GOOG 00000001) [ 0.000000] ACPI: WAET 0x00000000BFFFF470 000028 (v01 Google GOOGWAET 00000001 GOOG 00000001) [ 0.000000] kvm-clock: Using msrs 4b564d01 and 4b564d00 [ 0.000000] kvm-clock: cpu 0, msr 2:1fffd001, primary cpu clock [ 0.000000] kvm-clock: using sched offset of 1188123114 cycles [ 0.000000] clocksource: kvm-clock: mask: 0xffffffffffffffff max_cycles: 0x1cd42e4dffb, max_idle_ns: 881590591483 ns [ 0.000000] Zone ranges: [ 0.000000] DMA [mem 0x0000000000001000-0x0000000000ffffff] [ 0.000000] DMA32 [mem 0x0000000001000000-0x00000000ffffffff] [ 0.000000] Normal [mem 0x0000000100000000-0x000000021fffffff] [ 0.000000] Movable zone start for each node [ 0.000000] Early memory node ranges [ 0.000000] node 0: [mem 0x0000000000001000-0x000000000009efff] [ 0.000000] node 0: [mem 0x0000000000100000-0x00000000bfffcfff] [ 0.000000] node 0: [mem 0x0000000100000000-0x000000021fffffff] [ 0.000000] Initmem setup node 0 [mem 0x0000000000001000-0x000000021fffffff] [ 0.000000] kasan: KernelAddressSanitizer initialized [ 0.000000] ACPI: PM-Timer IO Port: 0xb008 [ 0.000000] ACPI: LAPIC_NMI (acpi_id[0xff] dfl dfl lint[0x1]) [ 0.000000] IOAPIC[0]: apic_id 0, version 17, address 0xfec00000, GSI 0-23 [ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 5 global_irq 5 high level) [ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 9 global_irq 9 high level) [ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 10 global_irq 10 high level) [ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 11 global_irq 11 high level) [ 0.000000] Using ACPI (MADT) for SMP configuration information [ 0.000000] smpboot: Allowing 2 CPUs, 0 hotplug CPUs [ 0.000000] PM: Registered nosave memory: [mem 0x00000000-0x00000fff] [ 0.000000] PM: Registered nosave memory: [mem 0x0009f000-0x0009ffff] [ 0.000000] PM: Registered nosave memory: [mem 0x000a0000-0x000effff] [ 0.000000] PM: Registered nosave memory: [mem 0x000f0000-0x000fffff] [ 0.000000] PM: Registered nosave memory: [mem 0xbfffd000-0xbfffffff] [ 0.000000] PM: Registered nosave memory: [mem 0xc0000000-0xfffbbfff] [ 0.000000] PM: Registered nosave memory: [mem 0xfffbc000-0xffffffff] [ 0.000000] e820: [mem 0xc0000000-0xfffbbfff] available for PCI devices [ 0.000000] Booting paravirtualized kernel on KVM [ 0.000000] clocksource: refined-jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604462750000 ns [ 0.000000] setup_percpu: NR_CPUS:64 nr_cpumask_bits:64 nr_cpu_ids:2 nr_node_ids:1 [ 0.000000] PERCPU: Embedded 42 pages/cpu @ffff8801db200000 s132680 r8192 d31160 u1048576 [ 0.000000] Built 1 zonelists in Zone order, mobility grouping on. Total pages: 1935238 [ 0.000000] Kernel command line: BOOT_IMAGE=/vmlinuz root=/dev/sda1 console=ttyS0 earlyprintk=serial vsyscall=native rodata=n ftrace_dump_on_oops=orig_cpu oops=panic panic_on_warn=1 nmi_watchdog=panic panic=86400 workqueue.watchdog_thresh=120 [ 0.000000] PID hash table entries: 4096 (order: 3, 32768 bytes) [ 0.000000] Dentry cache hash table entries: 1048576 (order: 11, 8388608 bytes) [ 0.000000] Inode-cache hash table entries: 524288 (order: 10, 4194304 bytes) [ 0.000000] ================================================================== [ 0.000000] BUG: KASAN: stack-out-of-bounds in reserve_bootmem_region+0xdf/0x130 [ 0.000000] Write of size 8 at addr ffffea0000047ce0 by task swapper/0 [ 0.000000] [ 0.000000] CPU: 0 PID: 0 Comm: swapper Not tainted 4.4.108-g55b3b8c #7 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 672f26e978367569 ffffffff84207ce8 ffffffff81d02e5d [ 0.000000] ffffea0000047ce0 ffffea0000047ce0 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d20 ffffffff814fb329 ffffea0000047ce0 [ 0.000000] Call Trace: [ 0.000000] [] dump_stack+0xc1/0x124 [ 0.000000] [] print_address_description+0x189/0x260 [ 0.000000] [] kasan_report+0x285/0x370 [ 0.000000] [] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] free_all_bootmem+0xf2/0x24d [ 0.000000] [] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [] ? dmar_table_detect+0x60/0x60 [ 0.000000] [] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [] mem_init+0x13/0x74 [ 0.000000] [] start_kernel+0x31d/0x6e9 [ 0.000000] [] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [] x86_64_start_kernel+0x140/0x163 [ 0.000000] [ 0.000000] [ 0.000000] Memory state around the buggy address: [ 0.000000] ffffea0000047b80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ffffea0000047c00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] >ffffea0000047c80: 00 00 00 00 00 00 f1 f1 f1 f1 00 00 f2 f2 00 00 [ 0.000000] ^ [ 0.000000] ffffea0000047d00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ffffea0000047d80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ================================================================== [ 0.000000] Disabling lock debugging due to kernel taint [ 0.000000] Kernel panic - not syncing: panic_on_warn set ... [ 0.000000] [ 0.000000] CPU: 0 PID: 0 Comm: swapper Tainted: G B 4.4.108-g55b3b8c #7 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 672f26e978367569 ffffffff84207c40 ffffffff81d02e5d [ 0.000000] ffffffff83fb34b5 ffffffff84207d18 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d08 ffffffff81417caa 0000000041b58ab3 [ 0.000000] Call Trace: [ 0.000000] [] dump_stack+0xc1/0x124 [ 0.000000] [] panic+0x1aa/0x388 [ 0.000000] [] ? percpu_up_read.constprop.45+0xe1/0xe1 [ 0.000000] [] kasan_end_report+0x50/0x50 [ 0.000000] [] kasan_report+0x15c/0x370 [ 0.000000] [] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] free_all_bootmem+0xf2/0x24d [ 0.000000] [] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [] ? dmar_table_detect+0x60/0x60 [ 0.000000] [] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [] mem_init+0x13/0x74 [ 0.000000] [] start_kernel+0x31d/0x6e9 [ 0.000000] [] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [] x86_64_start_kernel+0x140/0x163 [ 0.000000] Rebooting in 86400 seconds.. [ 0.000000] ACPI MEMORY or I/O RESET_REG. SeaBIOS (version 1.8.2-20171012_061934-google) Total RAM Size = 0x00000001e0000000 = 7680 MiB CPUs found: 2 Max CPUs supported: 2 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 0x000f3050: PCHS=0/0/0 translation=lba LCHS=520/128/63 s=4194304 Booting from Hard Disk 0... early console in decompress_kernel input_data: 0x00000000039be26e input_len: 0x0000000001424e03 output: 0x0000000001000000 output_len: 0x0000000003dcea40 run_size: 0x0000000005504000 Decompressing Linux... Parsing ELF... done. Booting the kernel. [ 0.000000] Initializing cgroup subsys cpuset [ 0.000000] Initializing cgroup subsys cpu [ 0.000000] Initializing cgroup subsys cpuacct [ 0.000000] Initializing cgroup subsys schedtune [ 0.000000] Linux version 4.4.108-g55b3b8c (syzkaller@ci) (gcc version 7.1.1 20170620 (GCC) ) #7 SMP PREEMPT Fri Dec 29 21:50:38 UTC 2017 [ 0.000000] Command line: BOOT_IMAGE=/vmlinuz root=/dev/sda1 console=ttyS0 earlyprintk=serial vsyscall=native rodata=n ftrace_dump_on_oops=orig_cpu oops=panic panic_on_warn=1 nmi_watchdog=panic panic=86400 workqueue.watchdog_thresh=120 [ 0.000000] KERNEL supported cpus: [ 0.000000] Intel GenuineIntel [ 0.000000] AMD AuthenticAMD [ 0.000000] Centaur CentaurHauls [ 0.000000] x86/fpu: xstate_offset[2]: 576, xstate_sizes[2]: 256 [ 0.000000] x86/fpu: Supporting XSAVE feature 0x01: 'x87 floating point registers' [ 0.000000] x86/fpu: Supporting XSAVE feature 0x02: 'SSE registers' [ 0.000000] x86/fpu: Supporting XSAVE feature 0x04: 'AVX registers' [ 0.000000] x86/fpu: Enabled xstate features 0x7, context size is 832 bytes, using 'standard' format. [ 0.000000] x86/fpu: Using 'eager' FPU context switches. [ 0.000000] e820: BIOS-provided physical RAM map: [ 0.000000] BIOS-e820: [mem 0x0000000000000000-0x000000000009fbff] usable [ 0.000000] BIOS-e820: [mem 0x000000000009fc00-0x000000000009ffff] reserved [ 0.000000] BIOS-e820: [mem 0x00000000000f0000-0x00000000000fffff] reserved [ 0.000000] BIOS-e820: [mem 0x0000000000100000-0x00000000bfffcfff] usable [ 0.000000] BIOS-e820: [mem 0x00000000bfffd000-0x00000000bfffffff] reserved [ 0.000000] BIOS-e820: [mem 0x00000000fffbc000-0x00000000ffffffff] reserved [ 0.000000] BIOS-e820: [mem 0x0000000100000000-0x000000021fffffff] usable [ 0.000000] bootconsole [earlyser0] enabled [ 0.000000] NX (Execute Disable) protection: active [ 0.000000] SMBIOS 2.4 present. [ 0.000000] Hypervisor detected: KVM [ 0.000000] e820: last_pfn = 0x220000 max_arch_pfn = 0x400000000 [ 0.000000] x86/PAT: Configuration [0-7]: WB WC UC- UC WB WC UC- WT [ 0.000000] e820: last_pfn = 0xbfffd max_arch_pfn = 0x400000000 [ 0.000000] found SMP MP-table at [mem 0x000f32c0-0x000f32cf] mapped at [ffff8800000f32c0] [ 0.000000] Scanning 1 areas for low memory corruption [ 0.000000] Using GB pages for direct mapping [ 0.000000] ACPI: Early table checksum verification disabled [ 0.000000] ACPI: RSDP 0x00000000000F3090 000014 (v00 Google) [ 0.000000] ACPI: RSDT 0x00000000BFFFDC70 000034 (v01 Google GOOGRSDT 00000001 GOOG 00000001) [ 0.000000] ACPI: FACP 0x00000000BFFFFF00 0000F4 (v02 Google GOOGFACP 00000001 GOOG 00000001) [ 0.000000] ACPI: DSDT 0x00000000BFFFDCB0 0017B2 (v01 Google GOOGDSDT 00000001 GOOG 00000001) [ 0.000000] ACPI: FACS 0x00000000BFFFFEC0 000040 [ 0.000000] ACPI: FACS 0x00000000BFFFFEC0 000040 [ 0.000000] ACPI: SSDT 0x00000000BFFFF590 000930 (v01 Google GOOGSSDT 00000001 GOOG 00000001) [ 0.000000] ACPI: APIC 0x00000000BFFFF4A0 000076 (v01 Google GOOGAPIC 00000001 GOOG 00000001) [ 0.000000] ACPI: WAET 0x00000000BFFFF470 000028 (v01 Google GOOGWAET 00000001 GOOG 00000001) [ 0.000000] kvm-clock: Using msrs 4b564d01 and 4b564d00 [ 0.000000] kvm-clock: cpu 0, msr 2:1fffd001, primary cpu clock [ 0.000000] kvm-clock: using sched offset of 1257553891 cycles [ 0.000000] clocksource: kvm-clock: mask: 0xffffffffffffffff max_cycles: 0x1cd42e4dffb, max_idle_ns: 881590591483 ns [ 0.000000] Zone ranges: [ 0.000000] DMA [mem 0x0000000000001000-0x0000000000ffffff] [ 0.000000] DMA32 [mem 0x0000000001000000-0x00000000ffffffff] [ 0.000000] Normal [mem 0x0000000100000000-0x000000021fffffff] [ 0.000000] Movable zone start for each node [ 0.000000] Early memory node ranges [ 0.000000] node 0: [mem 0x0000000000001000-0x000000000009efff] [ 0.000000] node 0: [mem 0x0000000000100000-0x00000000bfffcfff] [ 0.000000] node 0: [mem 0x0000000100000000-0x000000021fffffff] [ 0.000000] Initmem setup node 0 [mem 0x0000000000001000-0x000000021fffffff] [ 0.000000] kasan: KernelAddressSanitizer initialized [ 0.000000] ACPI: PM-Timer IO Port: 0xb008 [ 0.000000] ACPI: LAPIC_NMI (acpi_id[0xff] dfl dfl lint[0x1]) [ 0.000000] IOAPIC[0]: apic_id 0, version 17, address 0xfec00000, GSI 0-23 [ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 5 global_irq 5 high level) [ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 9 global_irq 9 high level) [ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 10 global_irq 10 high level) [ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 11 global_irq 11 high level) [ 0.000000] Using ACPI (MADT) for SMP configuration information [ 0.000000] smpboot: Allowing 2 CPUs, 0 hotplug CPUs [ 0.000000] PM: Registered nosave memory: [mem 0x00000000-0x00000fff] [ 0.000000] PM: Registered nosave memory: [mem 0x0009f000-0x0009ffff] [ 0.000000] PM: Registered nosave memory: [mem 0x000a0000-0x000effff] [ 0.000000] PM: Registered nosave memory: [mem 0x000f0000-0x000fffff] [ 0.000000] PM: Registered nosave memory: [mem 0xbfffd000-0xbfffffff] [ 0.000000] PM: Registered nosave memory: [mem 0xc0000000-0xfffbbfff] [ 0.000000] PM: Registered nosave memory: [mem 0xfffbc000-0xffffffff] [ 0.000000] e820: [mem 0xc0000000-0xfffbbfff] available for PCI devices [ 0.000000] Booting paravirtualized kernel on KVM [ 0.000000] clocksource: refined-jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604462750000 ns [ 0.000000] setup_percpu: NR_CPUS:64 nr_cpumask_bits:64 nr_cpu_ids:2 nr_node_ids:1 [ 0.000000] PERCPU: Embedded 42 pages/cpu @ffff8801db200000 s132680 r8192 d31160 u1048576 [ 0.000000] Built 1 zonelists in Zone order, mobility grouping on. Total pages: 1935238 [ 0.000000] Kernel command line: BOOT_IMAGE=/vmlinuz root=/dev/sda1 console=ttyS0 earlyprintk=serial vsyscall=native rodata=n ftrace_dump_on_oops=orig_cpu oops=panic panic_on_warn=1 nmi_watchdog=panic panic=86400 workqueue.watchdog_thresh=120 [ 0.000000] PID hash table entries: 4096 (order: 3, 32768 bytes) [ 0.000000] Dentry cache hash table entries: 1048576 (order: 11, 8388608 bytes) [ 0.000000] Inode-cache hash table entries: 524288 (order: 10, 4194304 bytes) [ 0.000000] ================================================================== [ 0.000000] BUG: KASAN: stack-out-of-bounds in reserve_bootmem_region+0xdf/0x130 [ 0.000000] Write of size 8 at addr ffffea0000047ce0 by task swapper/0 [ 0.000000] [ 0.000000] CPU: 0 PID: 0 Comm: swapper Not tainted 4.4.108-g55b3b8c #7 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 70ab472881b295a8 ffffffff84207ce8 ffffffff81d02e5d [ 0.000000] ffffea0000047ce0 ffffea0000047ce0 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d20 ffffffff814fb329 ffffea0000047ce0 [ 0.000000] Call Trace: [ 0.000000] [] dump_stack+0xc1/0x124 [ 0.000000] [] print_address_description+0x189/0x260 [ 0.000000] [] kasan_report+0x285/0x370 [ 0.000000] [] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] free_all_bootmem+0xf2/0x24d [ 0.000000] [] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [] ? dmar_table_detect+0x60/0x60 [ 0.000000] [] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [] mem_init+0x13/0x74 [ 0.000000] [] start_kernel+0x31d/0x6e9 [ 0.000000] [] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [] x86_64_start_kernel+0x140/0x163 [ 0.000000] [ 0.000000] [ 0.000000] Memory state around the buggy address: [ 0.000000] ffffea0000047b80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ffffea0000047c00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] >ffffea0000047c80: 00 00 00 00 00 00 f1 f1 f1 f1 00 00 f2 f2 00 00 [ 0.000000] ^ [ 0.000000] ffffea0000047d00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ffffea0000047d80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ================================================================== [ 0.000000] Disabling lock debugging due to kernel taint [ 0.000000] Kernel panic - not syncing: panic_on_warn set ... [ 0.000000] [ 0.000000] CPU: 0 PID: 0 Comm: swapper Tainted: G B 4.4.108-g55b3b8c #7 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 70ab472881b295a8 ffffffff84207c40 ffffffff81d02e5d [ 0.000000] ffffffff83fb34b5 ffffffff84207d18 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d08 ffffffff81417caa 0000000041b58ab3 [ 0.000000] Call Trace: [ 0.000000] [] dump_stack+0xc1/0x124 [ 0.000000] [] panic+0x1aa/0x388 [ 0.000000] [] ? percpu_up_read.constprop.45+0xe1/0xe1 [ 0.000000] [] kasan_end_report+0x50/0x50 [ 0.000000] [] kasan_report+0x15c/0x370 [ 0.000000] [] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] free_all_bootmem+0xf2/0x24d [ 0.000000] [] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [] ? dmar_table_detect+0x60/0x60 [ 0.000000] [] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [] mem_init+0x13/0x74 [ 0.000000] [] start_kernel+0x31d/0x6e9 [ 0.000000] [] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [] x86_64_start_kernel+0x140/0x163 [ 0.000000] Rebooting in 86400 seconds.. [ 0.000000] ACPI MEMORY or I/O RESET_REG. SeaBIOS (version 1.8.2-20171012_061934-google) Total RAM Size = 0x00000001e0000000 = 7680 MiB CPUs found: 2 Max CPUs supported: 2 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 0x000f3050: PCHS=0/0/0 translation=lba LCHS=520/128/63 s=4194304 Booting from Hard Disk 0... early console in decompress_kernel input_data: 0x00000000039be26e input_len: 0x0000000001424e03 output: 0x0000000001000000 output_len: 0x0000000003dcea40 run_size: 0x0000000005504000 Decompressing Linux... Parsing ELF... done. Booting the kernel. [ 0.000000] Initializing cgroup subsys cpuset [ 0.000000] Initializing cgroup subsys cpu [ 0.000000] Initializing cgroup subsys cpuacct [ 0.000000] Initializing cgroup subsys schedtune [ 0.000000] Linux version 4.4.108-g55b3b8c (syzkaller@ci) (gcc version 7.1.1 20170620 (GCC) ) #7 SMP PREEMPT Fri Dec 29 21:50:38 UTC 2017 [ 0.000000] Command line: BOOT_IMAGE=/vmlinuz root=/dev/sda1 console=ttyS0 earlyprintk=serial vsyscall=native rodata=n ftrace_dump_on_oops=orig_cpu oops=panic panic_on_warn=1 nmi_watchdog=panic panic=86400 workqueue.watchdog_thresh=120 [ 0.000000] KERNEL supported cpus: [ 0.000000] Intel GenuineIntel [ 0.000000] AMD AuthenticAMD [ 0.000000] Centaur CentaurHauls [ 0.000000] x86/fpu: xstate_offset[2]: 576, xstate_sizes[2]: 256 [ 0.000000] x86/fpu: Supporting XSAVE feature 0x01: 'x87 floating point registers' [ 0.000000] x86/fpu: Supporting XSAVE feature 0x02: 'SSE registers' [ 0.000000] x86/fpu: Supporting XSAVE feature 0x04: 'AVX registers' [ 0.000000] x86/fpu: Enabled xstate features 0x7, context size is 832 bytes, using 'standard' format. [ 0.000000] x86/fpu: Using 'eager' FPU context switches. [ 0.000000] e820: BIOS-provided physical RAM map: [ 0.000000] BIOS-e820: [mem 0x0000000000000000-0x000000000009fbff] usable [ 0.000000] BIOS-e820: [mem 0x000000000009fc00-0x000000000009ffff] reserved [ 0.000000] BIOS-e820: [mem 0x00000000000f0000-0x00000000000fffff] reserved [ 0.000000] BIOS-e820: [mem 0x0000000000100000-0x00000000bfffcfff] usable [ 0.000000] BIOS-e820: [mem 0x00000000bfffd000-0x00000000bfffffff] reserved [ 0.000000] BIOS-e820: [mem 0x00000000fffbc000-0x00000000ffffffff] reserved [ 0.000000] BIOS-e820: [mem 0x0000000100000000-0x000000021fffffff] usable [ 0.000000] bootconsole [earlyser0] enabled [ 0.000000] NX (Execute Disable) protection: active [ 0.000000] SMBIOS 2.4 present. [ 0.000000] Hypervisor detected: KVM [ 0.000000] e820: last_pfn = 0x220000 max_arch_pfn = 0x400000000 [ 0.000000] x86/PAT: Configuration [0-7]: WB WC UC- UC WB WC UC- WT [ 0.000000] e820: last_pfn = 0xbfffd max_arch_pfn = 0x400000000 [ 0.000000] found SMP MP-table at [mem 0x000f32c0-0x000f32cf] mapped at [ffff8800000f32c0] [ 0.000000] Scanning 1 areas for low memory corruption [ 0.000000] Using GB pages for direct mapping [ 0.000000] ACPI: Early table checksum verification disabled [ 0.000000] ACPI: RSDP 0x00000000000F3090 000014 (v00 Google) [ 0.000000] ACPI: RSDT 0x00000000BFFFDC70 000034 (v01 Google GOOGRSDT 00000001 GOOG 00000001) [ 0.000000] ACPI: FACP 0x00000000BFFFFF00 0000F4 (v02 Google GOOGFACP 00000001 GOOG 00000001) [ 0.000000] ACPI: DSDT 0x00000000BFFFDCB0 0017B2 (v01 Google GOOGDSDT 00000001 GOOG 00000001) [ 0.000000] ACPI: FACS 0x00000000BFFFFEC0 000040 [ 0.000000] ACPI: FACS 0x00000000BFFFFEC0 000040 [ 0.000000] ACPI: SSDT 0x00000000BFFFF590 000930 (v01 Google GOOGSSDT 00000001 GOOG 00000001) [ 0.000000] ACPI: APIC 0x00000000BFFFF4A0 000076 (v01 Google GOOGAPIC 00000001 GOOG 00000001) [ 0.000000] ACPI: WAET 0x00000000BFFFF470 000028 (v01 Google GOOGWAET 00000001 GOOG 00000001) [ 0.000000] kvm-clock: Using msrs 4b564d01 and 4b564d00 [ 0.000000] kvm-clock: cpu 0, msr 2:1fffd001, primary cpu clock [ 0.000000] kvm-clock: using sched offset of 1325447172 cycles [ 0.000000] clocksource: kvm-clock: mask: 0xffffffffffffffff max_cycles: 0x1cd42e4dffb, max_idle_ns: 881590591483 ns [ 0.000000] Zone ranges: [ 0.000000] DMA [mem 0x0000000000001000-0x0000000000ffffff] [ 0.000000] DMA32 [mem 0x0000000001000000-0x00000000ffffffff] [ 0.000000] Normal [mem 0x0000000100000000-0x000000021fffffff] [ 0.000000] Movable zone start for each node [ 0.000000] Early memory node ranges [ 0.000000] node 0: [mem 0x0000000000001000-0x000000000009efff] [ 0.000000] node 0: [mem 0x0000000000100000-0x00000000bfffcfff] [ 0.000000] node 0: [mem 0x0000000100000000-0x000000021fffffff] [ 0.000000] Initmem setup node 0 [mem 0x0000000000001000-0x000000021fffffff] [ 0.000000] kasan: KernelAddressSanitizer initialized [ 0.000000] ACPI: PM-Timer IO Port: 0xb008 [ 0.000000] ACPI: LAPIC_NMI (acpi_id[0xff] dfl dfl lint[0x1]) [ 0.000000] IOAPIC[0]: apic_id 0, version 17, address 0xfec00000, GSI 0-23 [ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 5 global_irq 5 high level) [ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 9 global_irq 9 high level) [ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 10 global_irq 10 high level) [ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 11 global_irq 11 high level) [ 0.000000] Using ACPI (MADT) for SMP configuration information [ 0.000000] smpboot: Allowing 2 CPUs, 0 hotplug CPUs [ 0.000000] PM: Registered nosave memory: [mem 0x00000000-0x00000fff] [ 0.000000] PM: Registered nosave memory: [mem 0x0009f000-0x0009ffff] [ 0.000000] PM: Registered nosave memory: [mem 0x000a0000-0x000effff] [ 0.000000] PM: Registered nosave memory: [mem 0x000f0000-0x000fffff] [ 0.000000] PM: Registered nosave memory: [mem 0xbfffd000-0xbfffffff] [ 0.000000] PM: Registered nosave memory: [mem 0xc0000000-0xfffbbfff] [ 0.000000] PM: Registered nosave memory: [mem 0xfffbc000-0xffffffff] [ 0.000000] e820: [mem 0xc0000000-0xfffbbfff] available for PCI devices [ 0.000000] Booting paravirtualized kernel on KVM [ 0.000000] clocksource: refined-jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604462750000 ns [ 0.000000] setup_percpu: NR_CPUS:64 nr_cpumask_bits:64 nr_cpu_ids:2 nr_node_ids:1 [ 0.000000] PERCPU: Embedded 42 pages/cpu @ffff8801db200000 s132680 r8192 d31160 u1048576 [ 0.000000] Built 1 zonelists in Zone order, mobility grouping on. Total pages: 1935238 [ 0.000000] Kernel command line: BOOT_IMAGE=/vmlinuz root=/dev/sda1 console=ttyS0 earlyprintk=serial vsyscall=native rodata=n ftrace_dump_on_oops=orig_cpu oops=panic panic_on_warn=1 nmi_watchdog=panic panic=86400 workqueue.watchdog_thresh=120 [ 0.000000] PID hash table entries: 4096 (order: 3, 32768 bytes) [ 0.000000] Dentry cache hash table entries: 1048576 (order: 11, 8388608 bytes) [ 0.000000] Inode-cache hash table entries: 524288 (order: 10, 4194304 bytes) [ 0.000000] ================================================================== [ 0.000000] BUG: KASAN: stack-out-of-bounds in reserve_bootmem_region+0xdf/0x130 [ 0.000000] Write of size 8 at addr ffffea0000047ce0 by task swapper/0 [ 0.000000] [ 0.000000] CPU: 0 PID: 0 Comm: swapper Not tainted 4.4.108-g55b3b8c #7 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 79edd8e98af52769 ffffffff84207ce8 ffffffff81d02e5d [ 0.000000] ffffea0000047ce0 ffffea0000047ce0 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d20 ffffffff814fb329 ffffea0000047ce0 [ 0.000000] Call Trace: [ 0.000000] [] dump_stack+0xc1/0x124 [ 0.000000] [] print_address_description+0x189/0x260 [ 0.000000] [] kasan_report+0x285/0x370 [ 0.000000] [] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] free_all_bootmem+0xf2/0x24d [ 0.000000] [] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [] ? dmar_table_detect+0x60/0x60 [ 0.000000] [] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [] mem_init+0x13/0x74 [ 0.000000] [] start_kernel+0x31d/0x6e9 [ 0.000000] [] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [] x86_64_start_kernel+0x140/0x163 [ 0.000000] [ 0.000000] [ 0.000000] Memory state around the buggy address: [ 0.000000] ffffea0000047b80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ffffea0000047c00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] >ffffea0000047c80: 00 00 00 00 00 00 f1 f1 f1 f1 00 00 f2 f2 00 00 [ 0.000000] ^ [ 0.000000] ffffea0000047d00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ffffea0000047d80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ================================================================== [ 0.000000] Disabling lock debugging due to kernel taint [ 0.000000] Kernel panic - not syncing: panic_on_warn set ... [ 0.000000] [ 0.000000] CPU: 0 PID: 0 Comm: swapper Tainted: G B 4.4.108-g55b3b8c #7 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 79edd8e98af52769 ffffffff84207c40 ffffffff81d02e5d [ 0.000000] ffffffff83fb34b5 ffffffff84207d18 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d08 ffffffff81417caa 0000000041b58ab3 [ 0.000000] Call Trace: [ 0.000000] [] dump_stack+0xc1/0x124 [ 0.000000] [] panic+0x1aa/0x388 [ 0.000000] [] ? percpu_up_read.constprop.45+0xe1/0xe1 [ 0.000000] [] kasan_end_report+0x50/0x50 [ 0.000000] [] kasan_report+0x15c/0x370 [ 0.000000] [] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] free_all_bootmem+0xf2/0x24d [ 0.000000] [] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [] ? dmar_table_detect+0x60/0x60 [ 0.000000] [] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [] mem_init+0x13/0x74 [ 0.000000] [] start_kernel+0x31d/0x6e9 [ 0.000000] [] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [] x86_64_start_kernel+0x140/0x163 [ 0.000000] Rebooting in 86400 seconds.. [ 0.000000] ACPI MEMORY or I/O RESET_REG. SeaBIOS (version 1.8.2-20171012_061934-google) Total RAM Size = 0x00000001e0000000 = 7680 MiB CPUs found: 2 Max CPUs supported: 2 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 0x000f3050: PCHS=0/0/0 translation=lba LCHS=520/128/63 s=4194304 Booting from Hard Disk 0... early console in decompress_kernel input_data: 0x00000000039be26e input_len: 0x0000000001424e03 output: 0x0000000001000000 output_len: 0x0000000003dcea40 run_size: 0x0000000005504000 Decompressing Linux... Parsing ELF... done. Booting the kernel. [ 0.000000] Initializing cgroup subsys cpuset [ 0.000000] Initializing cgroup subsys cpu [ 0.000000] Initializing cgroup subsys cpuacct [ 0.000000] Initializing cgroup subsys schedtune [ 0.000000] Linux version 4.4.108-g55b3b8c (syzkaller@ci) (gcc version 7.1.1 20170620 (GCC) ) #7 SMP PREEMPT Fri Dec 29 21:50:38 UTC 2017 [ 0.000000] Command line: BOOT_IMAGE=/vmlinuz root=/dev/sda1 console=ttyS0 earlyprintk=serial vsyscall=native rodata=n ftrace_dump_on_oops=orig_cpu oops=panic panic_on_warn=1 nmi_watchdog=panic panic=86400 workqueue.watchdog_thresh=120 [ 0.000000] KERNEL supported cpus: [ 0.000000] Intel GenuineIntel [ 0.000000] AMD AuthenticAMD [ 0.000000] Centaur CentaurHauls [ 0.000000] x86/fpu: xstate_offset[2]: 576, xstate_sizes[2]: 256 [ 0.000000] x86/fpu: Supporting XSAVE feature 0x01: 'x87 floating point registers' [ 0.000000] x86/fpu: Supporting XSAVE feature 0x02: 'SSE registers' [ 0.000000] x86/fpu: Supporting XSAVE feature 0x04: 'AVX registers' [ 0.000000] x86/fpu: Enabled xstate features 0x7, context size is 832 bytes, using 'standard' format. [ 0.000000] x86/fpu: Using 'eager' FPU context switches. [ 0.000000] e820: BIOS-provided physical RAM map: [ 0.000000] BIOS-e820: [mem 0x0000000000000000-0x000000000009fbff] usable [ 0.000000] BIOS-e820: [mem 0x000000000009fc00-0x000000000009ffff] reserved [ 0.000000] BIOS-e820: [mem 0x00000000000f0000-0x00000000000fffff] reserved [ 0.000000] BIOS-e820: [mem 0x0000000000100000-0x00000000bfffcfff] usable [ 0.000000] BIOS-e820: [mem 0x00000000bfffd000-0x00000000bfffffff] reserved [ 0.000000] BIOS-e820: [mem 0x00000000fffbc000-0x00000000ffffffff] reserved [ 0.000000] BIOS-e820: [mem 0x0000000100000000-0x000000021fffffff] usable [ 0.000000] bootconsole [earlyser0] enabled [ 0.000000] NX (Execute Disable) protection: active [ 0.000000] SMBIOS 2.4 present. [ 0.000000] Hypervisor detected: KVM [ 0.000000] e820: last_pfn = 0x220000 max_arch_pfn = 0x400000000 [ 0.000000] x86/PAT: Configuration [0-7]: WB WC UC- UC WB WC UC- WT [ 0.000000] e820: last_pfn = 0xbfffd max_arch_pfn = 0x400000000 [ 0.000000] found SMP MP-table at [mem 0x000f32c0-0x000f32cf] mapped at [ffff8800000f32c0] [ 0.000000] Scanning 1 areas for low memory corruption [ 0.000000] Using GB pages for direct mapping [ 0.000000] ACPI: Early table checksum verification disabled [ 0.000000] ACPI: RSDP 0x00000000000F3090 000014 (v00 Google) [ 0.000000] ACPI: RSDT 0x00000000BFFFDC70 000034 (v01 Google GOOGRSDT 00000001 GOOG 00000001) [ 0.000000] ACPI: FACP 0x00000000BFFFFF00 0000F4 (v02 Google GOOGFACP 00000001 GOOG 00000001) [ 0.000000] ACPI: DSDT 0x00000000BFFFDCB0 0017B2 (v01 Google GOOGDSDT 00000001 GOOG 00000001) [ 0.000000] ACPI: FACS 0x00000000BFFFFEC0 000040 [ 0.000000] ACPI: FACS 0x00000000BFFFFEC0 000040 [ 0.000000] ACPI: SSDT 0x00000000BFFFF590 000930 (v01 Google GOOGSSDT 00000001 GOOG 00000001) [ 0.000000] ACPI: APIC 0x00000000BFFFF4A0 000076 (v01 Google GOOGAPIC 00000001 GOOG 00000001) [ 0.000000] ACPI: WAET 0x00000000BFFFF470 000028 (v01 Google GOOGWAET 00000001 GOOG 00000001) [ 0.000000] kvm-clock: Using msrs 4b564d01 and 4b564d00 [ 0.000000] kvm-clock: cpu 0, msr 2:1fffd001, primary cpu clock [ 0.000000] kvm-clock: using sched offset of 1205621832 cycles [ 0.000000] clocksource: kvm-clock: mask: 0xffffffffffffffff max_cycles: 0x1cd42e4dffb, max_idle_ns: 881590591483 ns [ 0.000000] Zone ranges: [ 0.000000] DMA [mem 0x0000000000001000-0x0000000000ffffff] [ 0.000000] DMA32 [mem 0x0000000001000000-0x00000000ffffffff] [ 0.000000] Normal [mem 0x0000000100000000-0x000000021fffffff] [ 0.000000] Movable zone start for each node [ 0.000000] Early memory node ranges [ 0.000000] node 0: [mem 0x0000000000001000-0x000000000009efff] [ 0.000000] node 0: [mem 0x0000000000100000-0x00000000bfffcfff] [ 0.000000] node 0: [mem 0x0000000100000000-0x000000021fffffff] [ 0.000000] Initmem setup node 0 [mem 0x0000000000001000-0x000000021fffffff] [ 0.000000] kasan: KernelAddressSanitizer initialized [ 0.000000] ACPI: PM-Timer IO Port: 0xb008 [ 0.000000] ACPI: LAPIC_NMI (acpi_id[0xff] dfl dfl lint[0x1]) [ 0.000000] IOAPIC[0]: apic_id 0, version 17, address 0xfec00000, GSI 0-23 [ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 5 global_irq 5 high level) [ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 9 global_irq 9 high level) [ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 10 global_irq 10 high level) [ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 11 global_irq 11 high level) [ 0.000000] Using ACPI (MADT) for SMP configuration information [ 0.000000] smpboot: Allowing 2 CPUs, 0 hotplug CPUs [ 0.000000] PM: Registered nosave memory: [mem 0x00000000-0x00000fff] [ 0.000000] PM: Registered nosave memory: [mem 0x0009f000-0x0009ffff] [ 0.000000] PM: Registered nosave memory: [mem 0x000a0000-0x000effff] [ 0.000000] PM: Registered nosave memory: [mem 0x000f0000-0x000fffff] [ 0.000000] PM: Registered nosave memory: [mem 0xbfffd000-0xbfffffff] [ 0.000000] PM: Registered nosave memory: [mem 0xc0000000-0xfffbbfff] [ 0.000000] PM: Registered nosave memory: [mem 0xfffbc000-0xffffffff] [ 0.000000] e820: [mem 0xc0000000-0xfffbbfff] available for PCI devices [ 0.000000] Booting paravirtualized kernel on KVM [ 0.000000] clocksource: refined-jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604462750000 ns [ 0.000000] setup_percpu: NR_CPUS:64 nr_cpumask_bits:64 nr_cpu_ids:2 nr_node_ids:1 [ 0.000000] PERCPU: Embedded 42 pages/cpu @ffff8801db200000 s132680 r8192 d31160 u1048576 [ 0.000000] Built 1 zonelists in Zone order, mobility grouping on. Total pages: 1935238 [ 0.000000] Kernel command line: BOOT_IMAGE=/vmlinuz root=/dev/sda1 console=ttyS0 earlyprintk=serial vsyscall=native rodata=n ftrace_dump_on_oops=orig_cpu oops=panic panic_on_warn=1 nmi_watchdog=panic panic=86400 workqueue.watchdog_thresh=120 [ 0.000000] PID hash table entries: 4096 (order: 3, 32768 bytes) [ 0.000000] Dentry cache hash table entries: 1048576 (order: 11, 8388608 bytes) [ 0.000000] Inode-cache hash table entries: 524288 (order: 10, 4194304 bytes) [ 0.000000] ================================================================== [ 0.000000] BUG: KASAN: stack-out-of-bounds in reserve_bootmem_region+0xdf/0x130 [ 0.000000] Write of size 8 at addr ffffea0000047ce0 by task swapper/0 [ 0.000000] [ 0.000000] CPU: 0 PID: 0 Comm: swapper Not tainted 4.4.108-g55b3b8c #7 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 69a283ea7aa9d26a ffffffff84207ce8 ffffffff81d02e5d [ 0.000000] ffffea0000047ce0 ffffea0000047ce0 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d20 ffffffff814fb329 ffffea0000047ce0 [ 0.000000] Call Trace: [ 0.000000] [] dump_stack+0xc1/0x124 [ 0.000000] [] print_address_description+0x189/0x260 [ 0.000000] [] kasan_report+0x285/0x370 [ 0.000000] [] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] free_all_bootmem+0xf2/0x24d [ 0.000000] [] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [] ? dmar_table_detect+0x60/0x60 [ 0.000000] [] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [] mem_init+0x13/0x74 [ 0.000000] [] start_kernel+0x31d/0x6e9 [ 0.000000] [] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [] x86_64_start_kernel+0x140/0x163 [ 0.000000] [ 0.000000] [ 0.000000] Memory state around the buggy address: [ 0.000000] ffffea0000047b80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ffffea0000047c00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] >ffffea0000047c80: 00 00 00 00 00 00 f1 f1 f1 f1 00 00 f2 f2 00 00 [ 0.000000] ^ [ 0.000000] ffffea0000047d00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ffffea0000047d80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ================================================================== [ 0.000000] Disabling lock debugging due to kernel taint [ 0.000000] Kernel panic - not syncing: panic_on_warn set ... [ 0.000000] [ 0.000000] CPU: 0 PID: 0 Comm: swapper Tainted: G B 4.4.108-g55b3b8c #7 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 69a283ea7aa9d26a ffffffff84207c40 ffffffff81d02e5d [ 0.000000] ffffffff83fb34b5 ffffffff84207d18 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d08 ffffffff81417caa 0000000041b58ab3 [ 0.000000] Call Trace: [ 0.000000] [] dump_stack+0xc1/0x124 [ 0.000000] [] panic+0x1aa/0x388 [ 0.000000] [] ? percpu_up_read.constprop.45+0xe1/0xe1 [ 0.000000] [] kasan_end_report+0x50/0x50 [ 0.000000] [] kasan_report+0x15c/0x370 [ 0.000000] [] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] free_all_bootmem+0xf2/0x24d [ 0.000000] [] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [] ? dmar_table_detect+0x60/0x60 [ 0.000000] [] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [] mem_init+0x13/0x74 [ 0.000000] [] start_kernel+0x31d/0x6e9 [ 0.000000] [] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [] x86_64_start_kernel+0x140/0x163 [ 0.000000] Rebooting in 86400 seconds.. [ 0.000000] ACPI MEMORY or I/O RESET_REG. SeaBIOS (version 1.8.2-20171012_061934-google) Total RAM Size = 0x00000001e0000000 = 7680 MiB CPUs found: 2 Max CPUs supported: 2 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 0x000f3050: PCHS=0/0/0 translation=lba LCHS=520/128/63 s=4194304 Booting from Hard Disk 0... early console in decompress_kernel input_data: 0x00000000039be26e input_len: 0x0000000001424e03 output: 0x0000000001000000 output_len: 0x0000000003dcea40 run_size: 0x0000000005504000 Decompressing Linux... Parsing ELF... done. Booting the kernel. [ 0.000000] Initializing cgroup subsys cpuset [ 0.000000] Initializing cgroup subsys cpu [ 0.000000] Initializing cgroup subsys cpuacct [ 0.000000] Initializing cgroup subsys schedtune [ 0.000000] Linux version 4.4.108-g55b3b8c (syzkaller@ci) (gcc version 7.1.1 20170620 (GCC) ) #7 SMP PREEMPT Fri Dec 29 21:50:38 UTC 2017 [ 0.000000] Command line: BOOT_IMAGE=/vmlinuz root=/dev/sda1 console=ttyS0 earlyprintk=serial vsyscall=native rodata=n ftrace_dump_on_oops=orig_cpu oops=panic panic_on_warn=1 nmi_watchdog=panic panic=86400 workqueue.watchdog_thresh=120 [ 0.000000] KERNEL supported cpus: [ 0.000000] Intel GenuineIntel [ 0.000000] AMD AuthenticAMD [ 0.000000] Centaur CentaurHauls [ 0.000000] x86/fpu: xstate_offset[2]: 576, xstate_sizes[2]: 256 [ 0.000000] x86/fpu: Supporting XSAVE feature 0x01: 'x87 floating point registers' [ 0.000000] x86/fpu: Supporting XSAVE feature 0x02: 'SSE registers' [ 0.000000] x86/fpu: Supporting XSAVE feature 0x04: 'AVX registers' [ 0.000000] x86/fpu: Enabled xstate features 0x7, context size is 832 bytes, using 'standard' format. [ 0.000000] x86/fpu: Using 'eager' FPU context switches. [ 0.000000] e820: BIOS-provided physical RAM map: [ 0.000000] BIOS-e820: [mem 0x0000000000000000-0x000000000009fbff] usable [ 0.000000] BIOS-e820: [mem 0x000000000009fc00-0x000000000009ffff] reserved [ 0.000000] BIOS-e820: [mem 0x00000000000f0000-0x00000000000fffff] reserved [ 0.000000] BIOS-e820: [mem 0x0000000000100000-0x00000000bfffcfff] usable [ 0.000000] BIOS-e820: [mem 0x00000000bfffd000-0x00000000bfffffff] reserved [ 0.000000] BIOS-e820: [mem 0x00000000fffbc000-0x00000000ffffffff] reserved [ 0.000000] BIOS-e820: [mem 0x0000000100000000-0x000000021fffffff] usable [ 0.000000] bootconsole [earlyser0] enabled [ 0.000000] NX (Execute Disable) protection: active [ 0.000000] SMBIOS 2.4 present. [ 0.000000] Hypervisor detected: KVM [ 0.000000] e820: last_pfn = 0x220000 max_arch_pfn = 0x400000000 [ 0.000000] x86/PAT: Configuration [0-7]: WB WC UC- UC WB WC UC- WT [ 0.000000] e820: last_pfn = 0xbfffd max_arch_pfn = 0x400000000 [ 0.000000] found SMP MP-table at [mem 0x000f32c0-0x000f32cf] mapped at [ffff8800000f32c0] [ 0.000000] Scanning 1 areas for low memory corruption [ 0.000000] Using GB pages for direct mapping [ 0.000000] ACPI: Early table checksum verification disabled [ 0.000000] ACPI: RSDP 0x00000000000F3090 000014 (v00 Google) [ 0.000000] ACPI: RSDT 0x00000000BFFFDC70 000034 (v01 Google GOOGRSDT 00000001 GOOG 00000001) [ 0.000000] ACPI: FACP 0x00000000BFFFFF00 0000F4 (v02 Google GOOGFACP 00000001 GOOG 00000001) [ 0.000000] ACPI: DSDT 0x00000000BFFFDCB0 0017B2 (v01 Google GOOGDSDT 00000001 GOOG 00000001) [ 0.000000] ACPI: FACS 0x00000000BFFFFEC0 000040 [ 0.000000] ACPI: FACS 0x00000000BFFFFEC0 000040 [ 0.000000] ACPI: SSDT 0x00000000BFFFF590 000930 (v01 Google GOOGSSDT 00000001 GOOG 00000001) [ 0.000000] ACPI: APIC 0x00000000BFFFF4A0 000076 (v01 Google GOOGAPIC 00000001 GOOG 00000001) [ 0.000000] ACPI: WAET 0x00000000BFFFF470 000028 (v01 Google GOOGWAET 00000001 GOOG 00000001) [ 0.000000] kvm-clock: Using msrs 4b564d01 and 4b564d00 [ 0.000000] kvm-clock: cpu 0, msr 2:1fffd001, primary cpu clock [ 0.000000] kvm-clock: using sched offset of 1242777350 cycles [ 0.000000] clocksource: kvm-clock: mask: 0xffffffffffffffff max_cycles: 0x1cd42e4dffb, max_idle_ns: 881590591483 ns [ 0.000000] Zone ranges: [ 0.000000] DMA [mem 0x0000000000001000-0x0000000000ffffff] [ 0.000000] DMA32 [mem 0x0000000001000000-0x00000000ffffffff] [ 0.000000] Normal [mem 0x0000000100000000-0x000000021fffffff] [ 0.000000] Movable zone start for each node [ 0.000000] Early memory node ranges [ 0.000000] node 0: [mem 0x0000000000001000-0x000000000009efff] [ 0.000000] node 0: [mem 0x0000000000100000-0x00000000bfffcfff] [ 0.000000] node 0: [mem 0x0000000100000000-0x000000021fffffff] [ 0.000000] Initmem setup node 0 [mem 0x0000000000001000-0x000000021fffffff] [ 0.000000] kasan: KernelAddressSanitizer initialized [ 0.000000] ACPI: PM-Timer IO Port: 0xb008 [ 0.000000] ACPI: LAPIC_NMI (acpi_id[0xff] dfl dfl lint[0x1]) [ 0.000000] IOAPIC[0]: apic_id 0, version 17, address 0xfec00000, GSI 0-23 [ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 5 global_irq 5 high level) [ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 9 global_irq 9 high level) [ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 10 global_irq 10 high level) [ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 11 global_irq 11 high level) [ 0.000000] Using ACPI (MADT) for SMP configuration information [ 0.000000] smpboot: Allowing 2 CPUs, 0 hotplug CPUs [ 0.000000] PM: Registered nosave memory: [mem 0x00000000-0x00000fff] [ 0.000000] PM: Registered nosave memory: [mem 0x0009f000-0x0009ffff] [ 0.000000] PM: Registered nosave memory: [mem 0x000a0000-0x000effff] [ 0.000000] PM: Registered nosave memory: [mem 0x000f0000-0x000fffff] [ 0.000000] PM: Registered nosave memory: [mem 0xbfffd000-0xbfffffff] [ 0.000000] PM: Registered nosave memory: [mem 0xc0000000-0xfffbbfff] [ 0.000000] PM: Registered nosave memory: [mem 0xfffbc000-0xffffffff] [ 0.000000] e820: [mem 0xc0000000-0xfffbbfff] available for PCI devices [ 0.000000] Booting paravirtualized kernel on KVM [ 0.000000] clocksource: refined-jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604462750000 ns [ 0.000000] setup_percpu: NR_CPUS:64 nr_cpumask_bits:64 nr_cpu_ids:2 nr_node_ids:1 [ 0.000000] PERCPU: Embedded 42 pages/cpu @ffff8801db200000 s132680 r8192 d31160 u1048576 [ 0.000000] Built 1 zonelists in Zone order, mobility grouping on. Total pages: 1935238 [ 0.000000] Kernel command line: BOOT_IMAGE=/vmlinuz root=/dev/sda1 console=ttyS0 earlyprintk=serial vsyscall=native rodata=n ftrace_dump_on_oops=orig_cpu oops=panic panic_on_warn=1 nmi_watchdog=panic panic=86400 workqueue.watchdog_thresh=120 [ 0.000000] PID hash table entries: 4096 (order: 3, 32768 bytes) [ 0.000000] Dentry cache hash table entries: 1048576 (order: 11, 8388608 bytes) [ 0.000000] Inode-cache hash table entries: 524288 (order: 10, 4194304 bytes) [ 0.000000] ================================================================== [ 0.000000] BUG: KASAN: stack-out-of-bounds in reserve_bootmem_region+0xdf/0x130 [ 0.000000] Write of size 8 at addr ffffea0000047ce0 by task swapper/0 [ 0.000000] [ 0.000000] CPU: 0 PID: 0 Comm: swapper Not tainted 4.4.108-g55b3b8c #7 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 6e8f89077f96d787 ffffffff84207ce8 ffffffff81d02e5d [ 0.000000] ffffea0000047ce0 ffffea0000047ce0 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d20 ffffffff814fb329 ffffea0000047ce0 [ 0.000000] Call Trace: [ 0.000000] [] dump_stack+0xc1/0x124 [ 0.000000] [] print_address_description+0x189/0x260 [ 0.000000] [] kasan_report+0x285/0x370 [ 0.000000] [] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] free_all_bootmem+0xf2/0x24d [ 0.000000] [] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [] ? dmar_table_detect+0x60/0x60 [ 0.000000] [] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [] mem_init+0x13/0x74 [ 0.000000] [] start_kernel+0x31d/0x6e9 [ 0.000000] [] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [] x86_64_start_kernel+0x140/0x163 [ 0.000000] [ 0.000000] [ 0.000000] Memory state around the buggy address: [ 0.000000] ffffea0000047b80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ffffea0000047c00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] >ffffea0000047c80: 00 00 00 00 00 00 f1 f1 f1 f1 00 00 f2 f2 00 00 [ 0.000000] ^ [ 0.000000] ffffea0000047d00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ffffea0000047d80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ================================================================== [ 0.000000] Disabling lock debugging due to kernel taint [ 0.000000] Kernel panic - not syncing: panic_on_warn set ... [ 0.000000] [ 0.000000] CPU: 0 PID: 0 Comm: swapper Tainted: G B 4.4.108-g55b3b8c #7 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 6e8f89077f96d787 ffffffff84207c40 ffffffff81d02e5d [ 0.000000] ffffffff83fb34b5 ffffffff84207d18 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d08 ffffffff81417caa 0000000041b58ab3 [ 0.000000] Call Trace: [ 0.000000] [] dump_stack+0xc1/0x124 [ 0.000000] [] panic+0x1aa/0x388 [ 0.000000] [] ? percpu_up_read.constprop.45+0xe1/0xe1 [ 0.000000] [] kasan_end_report+0x50/0x50 [ 0.000000] [] kasan_report+0x15c/0x370 [ 0.000000] [] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] free_all_bootmem+0xf2/0x24d [ 0.000000] [] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [] ? dmar_table_detect+0x60/0x60 [ 0.000000] [] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [] mem_init+0x13/0x74 [ 0.000000] [] start_kernel+0x31d/0x6e9 [ 0.000000] [] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [] x86_64_start_kernel+0x140/0x163 [ 0.000000] Rebooting in 86400 seconds.. [ 0.000000] ACPI MEMORY or I/O RESET_REG. SeaBIOS (version 1.8.2-20171012_061934-google) Total RAM Size = 0x00000001e0000000 = 7680 MiB CPUs found: 2 Max CPUs supported: 2 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 0x000f3050: PCHS=0/0/0 translation=lba LCHS=520/128/63 s=4194304 Booting from Hard Disk 0... early console in decompress_kernel input_data: 0x00000000039be26e input_len: 0x0000000001424e03 output: 0x0000000001000000 output_len: 0x0000000003dcea40 run_size: 0x0000000005504000 Decompressing Linux... Parsing ELF... done. Booting the kernel. [ 0.000000] Initializing cgroup subsys cpuset [ 0.000000] Initializing cgroup subsys cpu [ 0.000000] Initializing cgroup subsys cpuacct [ 0.000000] Initializing cgroup subsys schedtune [ 0.000000] Linux version 4.4.108-g55b3b8c (syzkaller@ci) (gcc version 7.1.1 20170620 (GCC) ) #7 SMP PREEMPT Fri Dec 29 21:50:38 UTC 2017 [ 0.000000] Command line: BOOT_IMAGE=/vmlinuz root=/dev/sda1 console=ttyS0 earlyprintk=serial vsyscall=native rodata=n ftrace_dump_on_oops=orig_cpu oops=panic panic_on_warn=1 nmi_watchdog=panic panic=86400 workqueue.watchdog_thresh=120 [ 0.000000] KERNEL supported cpus: [ 0.000000] Intel GenuineIntel [ 0.000000] AMD AuthenticAMD [ 0.000000] Centaur CentaurHauls [ 0.000000] x86/fpu: xstate_offset[2]: 576, xstate_sizes[2]: 256 [ 0.000000] x86/fpu: Supporting XSAVE feature 0x01: 'x87 floating point registers' [ 0.000000] x86/fpu: Supporting XSAVE feature 0x02: 'SSE registers' [ 0.000000] x86/fpu: Supporting XSAVE feature 0x04: 'AVX registers' [ 0.000000] x86/fpu: Enabled xstate features 0x7, context size is 832 bytes, using 'standard' format. [ 0.000000] x86/fpu: Using 'eager' FPU context switches. [ 0.000000] e820: BIOS-provided physical RAM map: [ 0.000000] BIOS-e820: [mem 0x0000000000000000-0x000000000009fbff] usable [ 0.000000] BIOS-e820: [mem 0x000000000009fc00-0x000000000009ffff] reserved [ 0.000000] BIOS-e820: [mem 0x00000000000f0000-0x00000000000fffff] reserved [ 0.000000] BIOS-e820: [mem 0x0000000000100000-0x00000000bfffcfff] usable [ 0.000000] BIOS-e820: [mem 0x00000000bfffd000-0x00000000bfffffff] reserved [ 0.000000] BIOS-e820: [mem 0x00000000fffbc000-0x00000000ffffffff] reserved [ 0.000000] BIOS-e820: [mem 0x0000000100000000-0x000000021fffffff] usable [ 0.000000] bootconsole [earlyser0] enabled [ 0.000000] NX (Execute Disable) protection: active [ 0.000000] SMBIOS 2.4 present. [ 0.000000] Hypervisor detected: KVM [ 0.000000] e820: last_pfn = 0x220000 max_arch_pfn = 0x400000000 [ 0.000000] x86/PAT: Configuration [0-7]: WB WC UC- UC WB WC UC- WT [ 0.000000] e820: last_pfn = 0xbfffd max_arch_pfn = 0x400000000 [ 0.000000] found SMP MP-table at [mem 0x000f32c0-0x000f32cf] mapped at [ffff8800000f32c0] [ 0.000000] Scanning 1 areas for low memory corruption [ 0.000000] Using GB pages for direct mapping [ 0.000000] ACPI: Early table checksum verification disabled [ 0.000000] ACPI: RSDP 0x00000000000F3090 000014 (v00 Google) [ 0.000000] ACPI: RSDT 0x00000000BFFFDC70 000034 (v01 Google GOOGRSDT 00000001 GOOG 00000001) [ 0.000000] ACPI: FACP 0x00000000BFFFFF00 0000F4 (v02 Google GOOGFACP 00000001 GOOG 00000001) [ 0.000000] ACPI: DSDT 0x00000000BFFFDCB0 0017B2 (v01 Google GOOGDSDT 00000001 GOOG 00000001) [ 0.000000] ACPI: FACS 0x00000000BFFFFEC0 000040 [ 0.000000] ACPI: FACS 0x00000000BFFFFEC0 000040 [ 0.000000] ACPI: SSDT 0x00000000BFFFF590 000930 (v01 Google GOOGSSDT 00000001 GOOG 00000001) [ 0.000000] ACPI: APIC 0x00000000BFFFF4A0 000076 (v01 Google GOOGAPIC 00000001 GOOG 00000001) [ 0.000000] ACPI: WAET 0x00000000BFFFF470 000028 (v01 Google GOOGWAET 00000001 GOOG 00000001) [ 0.000000] kvm-clock: Using msrs 4b564d01 and 4b564d00 [ 0.000000] kvm-clock: cpu 0, msr 2:1fffd001, primary cpu clock [ 0.000000] kvm-clock: using sched offset of 1265848116 cycles [ 0.000000] clocksource: kvm-clock: mask: 0xffffffffffffffff max_cycles: 0x1cd42e4dffb, max_idle_ns: 881590591483 ns [ 0.000000] Zone ranges: [ 0.000000] DMA [mem 0x0000000000001000-0x0000000000ffffff] [ 0.000000] DMA32 [mem 0x0000000001000000-0x00000000ffffffff] [ 0.000000] Normal [mem 0x0000000100000000-0x000000021fffffff] [ 0.000000] Movable zone start for each node [ 0.000000] Early memory node ranges [ 0.000000] node 0: [mem 0x0000000000001000-0x000000000009efff] [ 0.000000] node 0: [mem 0x0000000000100000-0x00000000bfffcfff] [ 0.000000] node 0: [mem 0x0000000100000000-0x000000021fffffff] [ 0.000000] Initmem setup node 0 [mem 0x0000000000001000-0x000000021fffffff] [ 0.000000] kasan: KernelAddressSanitizer initialized [ 0.000000] ACPI: PM-Timer IO Port: 0xb008 [ 0.000000] ACPI: LAPIC_NMI (acpi_id[0xff] dfl dfl lint[0x1]) [ 0.000000] IOAPIC[0]: apic_id 0, version 17, address 0xfec00000, GSI 0-23 [ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 5 global_irq 5 high level) [ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 9 global_irq 9 high level) [ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 10 global_irq 10 high level) [ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 11 global_irq 11 high level) [ 0.000000] Using ACPI (MADT) for SMP configuration information [ 0.000000] smpboot: Allowing 2 CPUs, 0 hotplug CPUs [ 0.000000] PM: Registered nosave memory: [mem 0x00000000-0x00000fff] [ 0.000000] PM: Registered nosave memory: [mem 0x0009f000-0x0009ffff] [ 0.000000] PM: Registered nosave memory: [mem 0x000a0000-0x000effff] [ 0.000000] PM: Registered nosave memory: [mem 0x000f0000-0x000fffff] [ 0.000000] PM: Registered nosave memory: [mem 0xbfffd000-0xbfffffff] [ 0.000000] PM: Registered nosave memory: [mem 0xc0000000-0xfffbbfff] [ 0.000000] PM: Registered nosave memory: [mem 0xfffbc000-0xffffffff] [ 0.000000] e820: [mem 0xc0000000-0xfffbbfff] available for PCI devices [ 0.000000] Booting paravirtualized kernel on KVM [ 0.000000] clocksource: refined-jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604462750000 ns [ 0.000000] setup_percpu: NR_CPUS:64 nr_cpumask_bits:64 nr_cpu_ids:2 nr_node_ids:1 [ 0.000000] PERCPU: Embedded 42 pages/cpu @ffff8801db200000 s132680 r8192 d31160 u1048576 [ 0.000000] Built 1 zonelists in Zone order, mobility grouping on. Total pages: 1935238 [ 0.000000] Kernel command line: BOOT_IMAGE=/vmlinuz root=/dev/sda1 console=ttyS0 earlyprintk=serial vsyscall=native rodata=n ftrace_dump_on_oops=orig_cpu oops=panic panic_on_warn=1 nmi_watchdog=panic panic=86400 workqueue.watchdog_thresh=120 [ 0.000000] PID hash table entries: 4096 (order: 3, 32768 bytes) [ 0.000000] Dentry cache hash table entries: 1048576 (order: 11, 8388608 bytes) [ 0.000000] Inode-cache hash table entries: 524288 (order: 10, 4194304 bytes) [ 0.000000] ================================================================== [ 0.000000] BUG: KASAN: stack-out-of-bounds in reserve_bootmem_region+0xdf/0x130 [ 0.000000] Write of size 8 at addr ffffea0000047ce0 by task swapper/0 [ 0.000000] [ 0.000000] CPU: 0 PID: 0 Comm: swapper Not tainted 4.4.108-g55b3b8c #7 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 71c73b4a82ce89ca ffffffff84207ce8 ffffffff81d02e5d [ 0.000000] ffffea0000047ce0 ffffea0000047ce0 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d20 ffffffff814fb329 ffffea0000047ce0 [ 0.000000] Call Trace: [ 0.000000] [] dump_stack+0xc1/0x124 [ 0.000000] [] print_address_description+0x189/0x260 [ 0.000000] [] kasan_report+0x285/0x370 [ 0.000000] [] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] free_all_bootmem+0xf2/0x24d [ 0.000000] [] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [] ? dmar_table_detect+0x60/0x60 [ 0.000000] [] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [] mem_init+0x13/0x74 [ 0.000000] [] start_kernel+0x31d/0x6e9 [ 0.000000] [] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [] x86_64_start_kernel+0x140/0x163 [ 0.000000] [ 0.000000] [ 0.000000] Memory state around the buggy address: [ 0.000000] ffffea0000047b80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ffffea0000047c00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] >ffffea0000047c80: 00 00 00 00 00 00 f1 f1 f1 f1 00 00 f2 f2 00 00 [ 0.000000] ^ [ 0.000000] ffffea0000047d00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ffffea0000047d80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ================================================================== [ 0.000000] Disabling lock debugging due to kernel taint [ 0.000000] Kernel panic - not syncing: panic_on_warn set ... [ 0.000000] [ 0.000000] CPU: 0 PID: 0 Comm: swapper Tainted: G B 4.4.108-g55b3b8c #7 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 71c73b4a82ce89ca ffffffff84207c40 ffffffff81d02e5d [ 0.000000] ffffffff83fb34b5 ffffffff84207d18 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d08 ffffffff81417caa 0000000041b58ab3 [ 0.000000] Call Trace: [ 0.000000] [] dump_stack+0xc1/0x124 [ 0.000000] [] panic+0x1aa/0x388 [ 0.000000] [] ? percpu_up_read.constprop.45+0xe1/0xe1 [ 0.000000] [] kasan_end_report+0x50/0x50 [ 0.000000] [] kasan_report+0x15c/0x370 [ 0.000000] [] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] free_all_bootmem+0xf2/0x24d [ 0.000000] [] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [] ? dmar_table_detect+0x60/0x60 [ 0.000000] [] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [] mem_init+0x13/0x74 [ 0.000000] [] start_kernel+0x31d/0x6e9 [ 0.000000] [] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [] x86_64_start_kernel+0x140/0x163 [ 0.000000] Rebooting in 86400 seconds.. [ 0.000000] ACPI MEMORY or I/O RESET_REG. SeaBIOS (version 1.8.2-20171012_061934-google) Total RAM Size = 0x00000001e0000000 = 7680 MiB CPUs found: 2 Max CPUs supported: 2 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 0x000f3050: PCHS=0/0/0 translation=lba LCHS=520/128/63 s=4194304 Booting from Hard Disk 0... early console in decompress_kernel input_data: 0x00000000039be26e input_len: 0x0000000001424e03 output: 0x0000000001000000 output_len: 0x0000000003dcea40 run_size: 0x0000000005504000 Decompressing Linux... Parsing ELF... done. Booting the kernel. [ 0.000000] Initializing cgroup subsys cpuset [ 0.000000] Initializing cgroup subsys cpu [ 0.000000] Initializing cgroup subsys cpuacct [ 0.000000] Initializing cgroup subsys schedtune [ 0.000000] Linux version 4.4.108-g55b3b8c (syzkaller@ci) (gcc version 7.1.1 20170620 (GCC) ) #7 SMP PREEMPT Fri Dec 29 21:50:38 UTC 2017 [ 0.000000] Command line: BOOT_IMAGE=/vmlinuz root=/dev/sda1 console=ttyS0 earlyprintk=serial vsyscall=native rodata=n ftrace_dump_on_oops=orig_cpu oops=panic panic_on_warn=1 nmi_watchdog=panic panic=86400 workqueue.watchdog_thresh=120 [ 0.000000] KERNEL supported cpus: [ 0.000000] Intel GenuineIntel [ 0.000000] AMD AuthenticAMD [ 0.000000] Centaur CentaurHauls [ 0.000000] x86/fpu: xstate_offset[2]: 576, xstate_sizes[2]: 256 [ 0.000000] x86/fpu: Supporting XSAVE feature 0x01: 'x87 floating point registers' [ 0.000000] x86/fpu: Supporting XSAVE feature 0x02: 'SSE registers' [ 0.000000] x86/fpu: Supporting XSAVE feature 0x04: 'AVX registers' [ 0.000000] x86/fpu: Enabled xstate features 0x7, context size is 832 bytes, using 'standard' format. [ 0.000000] x86/fpu: Using 'eager' FPU context switches. [ 0.000000] e820: BIOS-provided physical RAM map: [ 0.000000] BIOS-e820: [mem 0x0000000000000000-0x000000000009fbff] usable [ 0.000000] BIOS-e820: [mem 0x000000000009fc00-0x000000000009ffff] reserved [ 0.000000] BIOS-e820: [mem 0x00000000000f0000-0x00000000000fffff] reserved [ 0.000000] BIOS-e820: [mem 0x0000000000100000-0x00000000bfffcfff] usable [ 0.000000] BIOS-e820: [mem 0x00000000bfffd000-0x00000000bfffffff] reserved [ 0.000000] BIOS-e820: [mem 0x00000000fffbc000-0x00000000ffffffff] reserved [ 0.000000] BIOS-e820: [mem 0x0000000100000000-0x000000021fffffff] usable [ 0.000000] bootconsole [earlyser0] enabled [ 0.000000] NX (Execute Disable) protection: active [ 0.000000] SMBIOS 2.4 present. [ 0.000000] Hypervisor detected: KVM [ 0.000000] e820: last_pfn = 0x220000 max_arch_pfn = 0x400000000 [ 0.000000] x86/PAT: Configuration [0-7]: WB WC UC- UC WB WC UC- WT [ 0.000000] e820: last_pfn = 0xbfffd max_arch_pfn = 0x400000000 [ 0.000000] found SMP MP-table at [mem 0x000f32c0-0x000f32cf] mapped at [ffff8800000f32c0] [ 0.000000] Scanning 1 areas for low memory corruption [ 0.000000] Using GB pages for direct mapping [ 0.000000] ACPI: Early table checksum verification disabled [ 0.000000] ACPI: RSDP 0x00000000000F3090 000014 (v00 Google) [ 0.000000] ACPI: RSDT 0x00000000BFFFDC70 000034 (v01 Google GOOGRSDT 00000001 GOOG 00000001) [ 0.000000] ACPI: FACP 0x00000000BFFFFF00 0000F4 (v02 Google GOOGFACP 00000001 GOOG 00000001) [ 0.000000] ACPI: DSDT 0x00000000BFFFDCB0 0017B2 (v01 Google GOOGDSDT 00000001 GOOG 00000001) [ 0.000000] ACPI: FACS 0x00000000BFFFFEC0 000040 [ 0.000000] ACPI: FACS 0x00000000BFFFFEC0 000040 [ 0.000000] ACPI: SSDT 0x00000000BFFFF590 000930 (v01 Google GOOGSSDT 00000001 GOOG 00000001) [ 0.000000] ACPI: APIC 0x00000000BFFFF4A0 000076 (v01 Google GOOGAPIC 00000001 GOOG 00000001) [ 0.000000] ACPI: WAET 0x00000000BFFFF470 000028 (v01 Google GOOGWAET 00000001 GOOG 00000001) [ 0.000000] kvm-clock: Using msrs 4b564d01 and 4b564d00 [ 0.000000] kvm-clock: cpu 0, msr 2:1fffd001, primary cpu clock [ 0.000000] kvm-clock: using sched offset of 1352692910 cycles [ 0.000000] clocksource: kvm-clock: mask: 0xffffffffffffffff max_cycles: 0x1cd42e4dffb, max_idle_ns: 881590591483 ns [ 0.000000] Zone ranges: [ 0.000000] DMA [mem 0x0000000000001000-0x0000000000ffffff] [ 0.000000] DMA32 [mem 0x0000000001000000-0x00000000ffffffff] [ 0.000000] Normal [mem 0x0000000100000000-0x000000021fffffff] [ 0.000000] Movable zone start for each node [ 0.000000] Early memory node ranges [ 0.000000] node 0: [mem 0x0000000000001000-0x000000000009efff] [ 0.000000] node 0: [mem 0x0000000000100000-0x00000000bfffcfff] [ 0.000000] node 0: [mem 0x0000000100000000-0x000000021fffffff] [ 0.000000] Initmem setup node 0 [mem 0x0000000000001000-0x000000021fffffff] [ 0.000000] kasan: KernelAddressSanitizer initialized [ 0.000000] ACPI: PM-Timer IO Port: 0xb008 [ 0.000000] ACPI: LAPIC_NMI (acpi_id[0xff] dfl dfl lint[0x1]) [ 0.000000] IOAPIC[0]: apic_id 0, version 17, address 0xfec00000, GSI 0-23 [ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 5 global_irq 5 high level) [ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 9 global_irq 9 high level) [ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 10 global_irq 10 high level) [ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 11 global_irq 11 high level) [ 0.000000] Using ACPI (MADT) for SMP configuration information [ 0.000000] smpboot: Allowing 2 CPUs, 0 hotplug CPUs [ 0.000000] PM: Registered nosave memory: [mem 0x00000000-0x00000fff] [ 0.000000] PM: Registered nosave memory: [mem 0x0009f000-0x0009ffff] [ 0.000000] PM: Registered nosave memory: [mem 0x000a0000-0x000effff] [ 0.000000] PM: Registered nosave memory: [mem 0x000f0000-0x000fffff] [ 0.000000] PM: Registered nosave memory: [mem 0xbfffd000-0xbfffffff] [ 0.000000] PM: Registered nosave memory: [mem 0xc0000000-0xfffbbfff] [ 0.000000] PM: Registered nosave memory: [mem 0xfffbc000-0xffffffff] [ 0.000000] e820: [mem 0xc0000000-0xfffbbfff] available for PCI devices [ 0.000000] Booting paravirtualized kernel on KVM [ 0.000000] clocksource: refined-jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604462750000 ns [ 0.000000] setup_percpu: NR_CPUS:64 nr_cpumask_bits:64 nr_cpu_ids:2 nr_node_ids:1 [ 0.000000] PERCPU: Embedded 42 pages/cpu @ffff8801db200000 s132680 r8192 d31160 u1048576 [ 0.000000] Built 1 zonelists in Zone order, mobility grouping on. Total pages: 1935238 [ 0.000000] Kernel command line: BOOT_IMAGE=/vmlinuz root=/dev/sda1 console=ttyS0 earlyprintk=serial vsyscall=native rodata=n ftrace_dump_on_oops=orig_cpu oops=panic panic_on_warn=1 nmi_watchdog=panic panic=86400 workqueue.watchdog_thresh=120 [ 0.000000] PID hash table entries: 4096 (order: 3, 32768 bytes) [ 0.000000] Dentry cache hash table entries: 1048576 (order: 11, 8388608 bytes) [ 0.000000] Inode-cache hash table entries: 524288 (order: 10, 4194304 bytes) [ 0.000000] ================================================================== [ 0.000000] BUG: KASAN: stack-out-of-bounds in reserve_bootmem_region+0xdf/0x130 [ 0.000000] Write of size 8 at addr ffffea0000047ce0 by task swapper/0 [ 0.000000] [ 0.000000] CPU: 0 PID: 0 Comm: swapper Not tainted 4.4.108-g55b3b8c #7 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 7d918eb68e98dd36 ffffffff84207ce8 ffffffff81d02e5d [ 0.000000] ffffea0000047ce0 ffffea0000047ce0 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d20 ffffffff814fb329 ffffea0000047ce0 [ 0.000000] Call Trace: [ 0.000000] [] dump_stack+0xc1/0x124 [ 0.000000] [] print_address_description+0x189/0x260 [ 0.000000] [] kasan_report+0x285/0x370 [ 0.000000] [] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] free_all_bootmem+0xf2/0x24d [ 0.000000] [] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [] ? dmar_table_detect+0x60/0x60 [ 0.000000] [] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [] mem_init+0x13/0x74 [ 0.000000] [] start_kernel+0x31d/0x6e9 [ 0.000000] [] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [] x86_64_start_kernel+0x140/0x163 [ 0.000000] [ 0.000000] [ 0.000000] Memory state around the buggy address: [ 0.000000] ffffea0000047b80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ffffea0000047c00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] >ffffea0000047c80: 00 00 00 00 00 00 f1 f1 f1 f1 00 00 f2 f2 00 00 [ 0.000000] ^ [ 0.000000] ffffea0000047d00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ffffea0000047d80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ================================================================== [ 0.000000] Disabling lock debugging due to kernel taint [ 0.000000] Kernel panic - not syncing: panic_on_warn set ... [ 0.000000] [ 0.000000] CPU: 0 PID: 0 Comm: swapper Tainted: G B 4.4.108-g55b3b8c #7 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 7d918eb68e98dd36 ffffffff84207c40 ffffffff81d02e5d [ 0.000000] ffffffff83fb34b5 ffffffff84207d18 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d08 ffffffff81417caa 0000000041b58ab3 [ 0.000000] Call Trace: [ 0.000000] [] dump_stack+0xc1/0x124 [ 0.000000] [] panic+0x1aa/0x388 [ 0.000000] [] ? percpu_up_read.constprop.45+0xe1/0xe1 [ 0.000000] [] kasan_end_report+0x50/0x50 [ 0.000000] [] kasan_report+0x15c/0x370 [ 0.000000] [] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] free_all_bootmem+0xf2/0x24d [ 0.000000] [] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [] ? dmar_table_detect+0x60/0x60 [ 0.000000] [] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [] mem_init+0x13/0x74 [ 0.000000] [] start_kernel+0x31d/0x6e9 [ 0.000000] [] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [] x86_64_start_kernel+0x140/0x163 [ 0.000000] Rebooting in 86400 seconds.. [ 0.000000] ACPI MEMORY or I/O RESET_REG. SeaBIOS (version 1.8.2-20171012_061934-google) Total RAM Size = 0x00000001e0000000 = 7680 MiB CPUs found: 2 Max CPUs supported: 2 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 0x000f3050: PCHS=0/0/0 translation=lba LCHS=520/128/63 s=4194304 Booting from Hard Disk 0... early console in decompress_kernel input_data: 0x00000000039be26e input_len: 0x0000000001424e03 output: 0x0000000001000000 output_len: 0x0000000003dcea40 run_size: 0x0000000005504000 Decompressing Linux... Parsing ELF... done. Booting the kernel. [ 0.000000] Initializing cgroup subsys cpuset [ 0.000000] Initializing cgroup subsys cpu [ 0.000000] Initializing cgroup subsys cpuacct [ 0.000000] Initializing cgroup subsys schedtune [ 0.000000] Linux version 4.4.108-g55b3b8c (syzkaller@ci) (gcc version 7.1.1 20170620 (GCC) ) #7 SMP PREEMPT Fri Dec 29 21:50:38 UTC 2017 [ 0.000000] Command line: BOOT_IMAGE=/vmlinuz root=/dev/sda1 console=ttyS0 earlyprintk=serial vsyscall=native rodata=n ftrace_dump_on_oops=orig_cpu oops=panic panic_on_warn=1 nmi_watchdog=panic panic=86400 workqueue.watchdog_thresh=120 [ 0.000000] KERNEL supported cpus: [ 0.000000] Intel GenuineIntel [ 0.000000] AMD AuthenticAMD [ 0.000000] Centaur CentaurHauls [ 0.000000] x86/fpu: xstate_offset[2]: 576, xstate_sizes[2]: 256 [ 0.000000] x86/fpu: Supporting XSAVE feature 0x01: 'x87 floating point registers' [ 0.000000] x86/fpu: Supporting XSAVE feature 0x02: 'SSE registers' [ 0.000000] x86/fpu: Supporting XSAVE feature 0x04: 'AVX registers' [ 0.000000] x86/fpu: Enabled xstate features 0x7, context size is 832 bytes, using 'standard' format. [ 0.000000] x86/fpu: Using 'eager' FPU context switches. [ 0.000000] e820: BIOS-provided physical RAM map: [ 0.000000] BIOS-e820: [mem 0x0000000000000000-0x000000000009fbff] usable [ 0.000000] BIOS-e820: [mem 0x000000000009fc00-0x000000000009ffff] reserved [ 0.000000] BIOS-e820: [mem 0x00000000000f0000-0x00000000000fffff] reserved [ 0.000000] BIOS-e820: [mem 0x0000000000100000-0x00000000bfffcfff] usable [ 0.000000] BIOS-e820: [mem 0x00000000bfffd000-0x00000000bfffffff] reserved [ 0.000000] BIOS-e820: [mem 0x00000000fffbc000-0x00000000ffffffff] reserved [ 0.000000] BIOS-e820: [mem 0x0000000100000000-0x000000021fffffff] usable [ 0.000000] bootconsole [earlyser0] enabled [ 0.000000] NX (Execute Disable) protection: active [ 0.000000] SMBIOS 2.4 present. [ 0.000000] Hypervisor detected: KVM [ 0.000000] e820: last_pfn = 0x220000 max_arch_pfn = 0x400000000 [ 0.000000] x86/PAT: Configuration [0-7]: WB WC UC- UC WB WC UC- WT [ 0.000000] e820: last_pfn = 0xbfffd max_arch_pfn = 0x400000000 [ 0.000000] found SMP MP-table at [mem 0x000f32c0-0x000f32cf] mapped at [ffff8800000f32c0] [ 0.000000] Scanning 1 areas for low memory corruption [ 0.000000] Using GB pages for direct mapping [ 0.000000] ACPI: Early table checksum verification disabled [ 0.000000] ACPI: RSDP 0x00000000000F3090 000014 (v00 Google) [ 0.000000] ACPI: RSDT 0x00000000BFFFDC70 000034 (v01 Google GOOGRSDT 00000001 GOOG 00000001) [ 0.000000] ACPI: FACP 0x00000000BFFFFF00 0000F4 (v02 Google GOOGFACP 00000001 GOOG 00000001) [ 0.000000] ACPI: DSDT 0x00000000BFFFDCB0 0017B2 (v01 Google GOOGDSDT 00000001 GOOG 00000001) [ 0.000000] ACPI: FACS 0x00000000BFFFFEC0 000040 [ 0.000000] ACPI: FACS 0x00000000BFFFFEC0 000040 [ 0.000000] ACPI: SSDT 0x00000000BFFFF590 000930 (v01 Google GOOGSSDT 00000001 GOOG 00000001) [ 0.000000] ACPI: APIC 0x00000000BFFFF4A0 000076 (v01 Google GOOGAPIC 00000001 GOOG 00000001) [ 0.000000] ACPI: WAET 0x00000000BFFFF470 000028 (v01 Google GOOGWAET 00000001 GOOG 00000001) [ 0.000000] kvm-clock: Using msrs 4b564d01 and 4b564d00 [ 0.000000] kvm-clock: cpu 0, msr 2:1fffd001, primary cpu clock [ 0.000000] kvm-clock: using sched offset of 1340703335 cycles [ 0.000000] clocksource: kvm-clock: mask: 0xffffffffffffffff max_cycles: 0x1cd42e4dffb, max_idle_ns: 881590591483 ns [ 0.000000] Zone ranges: [ 0.000000] DMA [mem 0x0000000000001000-0x0000000000ffffff] [ 0.000000] DMA32 [mem 0x0000000001000000-0x00000000ffffffff] [ 0.000000] Normal [mem 0x0000000100000000-0x000000021fffffff] [ 0.000000] Movable zone start for each node [ 0.000000] Early memory node ranges [ 0.000000] node 0: [mem 0x0000000000001000-0x000000000009efff] [ 0.000000] node 0: [mem 0x0000000000100000-0x00000000bfffcfff] [ 0.000000] node 0: [mem 0x0000000100000000-0x000000021fffffff] [ 0.000000] Initmem setup node 0 [mem 0x0000000000001000-0x000000021fffffff] [ 0.000000] kasan: KernelAddressSanitizer initialized [ 0.000000] ACPI: PM-Timer IO Port: 0xb008 [ 0.000000] ACPI: LAPIC_NMI (acpi_id[0xff] dfl dfl lint[0x1]) [ 0.000000] IOAPIC[0]: apic_id 0, version 17, address 0xfec00000, GSI 0-23 [ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 5 global_irq 5 high level) [ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 9 global_irq 9 high level) [ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 10 global_irq 10 high level) [ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 11 global_irq 11 high level) [ 0.000000] Using ACPI (MADT) for SMP configuration information [ 0.000000] smpboot: Allowing 2 CPUs, 0 hotplug CPUs [ 0.000000] PM: Registered nosave memory: [mem 0x00000000-0x00000fff] [ 0.000000] PM: Registered nosave memory: [mem 0x0009f000-0x0009ffff] [ 0.000000] PM: Registered nosave memory: [mem 0x000a0000-0x000effff] [ 0.000000] PM: Registered nosave memory: [mem 0x000f0000-0x000fffff] [ 0.000000] PM: Registered nosave memory: [mem 0xbfffd000-0xbfffffff] [ 0.000000] PM: Registered nosave memory: [mem 0xc0000000-0xfffbbfff] [ 0.000000] PM: Registered nosave memory: [mem 0xfffbc000-0xffffffff] [ 0.000000] e820: [mem 0xc0000000-0xfffbbfff] available for PCI devices [ 0.000000] Booting paravirtualized kernel on KVM [ 0.000000] clocksource: refined-jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604462750000 ns [ 0.000000] setup_percpu: NR_CPUS:64 nr_cpumask_bits:64 nr_cpu_ids:2 nr_node_ids:1 [ 0.000000] PERCPU: Embedded 42 pages/cpu @ffff8801db200000 s132680 r8192 d31160 u1048576 [ 0.000000] Built 1 zonelists in Zone order, mobility grouping on. Total pages: 1935238 [ 0.000000] Kernel command line: BOOT_IMAGE=/vmlinuz root=/dev/sda1 console=ttyS0 earlyprintk=serial vsyscall=native rodata=n ftrace_dump_on_oops=orig_cpu oops=panic panic_on_warn=1 nmi_watchdog=panic panic=86400 workqueue.watchdog_thresh=120 [ 0.000000] PID hash table entries: 4096 (order: 3, 32768 bytes) [ 0.000000] Dentry cache hash table entries: 1048576 (order: 11, 8388608 bytes) [ 0.000000] Inode-cache hash table entries: 524288 (order: 10, 4194304 bytes) [ 0.000000] ================================================================== [ 0.000000] BUG: KASAN: stack-out-of-bounds in reserve_bootmem_region+0xdf/0x130 [ 0.000000] Write of size 8 at addr ffffea0000047ce0 by task swapper/0 [ 0.000000] [ 0.000000] CPU: 0 PID: 0 Comm: swapper Not tainted 4.4.108-g55b3b8c #7 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 7bf3ab5c8cfaf9dc ffffffff84207ce8 ffffffff81d02e5d [ 0.000000] ffffea0000047ce0 ffffea0000047ce0 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d20 ffffffff814fb329 ffffea0000047ce0 [ 0.000000] Call Trace: [ 0.000000] [] dump_stack+0xc1/0x124 [ 0.000000] [] print_address_description+0x189/0x260 [ 0.000000] [] kasan_report+0x285/0x370 [ 0.000000] [] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] free_all_bootmem+0xf2/0x24d [ 0.000000] [] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [] ? dmar_table_detect+0x60/0x60 [ 0.000000] [] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [] mem_init+0x13/0x74 [ 0.000000] [] start_kernel+0x31d/0x6e9 [ 0.000000] [] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [] x86_64_start_kernel+0x140/0x163 [ 0.000000] [ 0.000000] [ 0.000000] Memory state around the buggy address: [ 0.000000] ffffea0000047b80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ffffea0000047c00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] >ffffea0000047c80: 00 00 00 00 00 00 f1 f1 f1 f1 00 00 f2 f2 00 00 [ 0.000000] ^ [ 0.000000] ffffea0000047d00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ffffea0000047d80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ================================================================== [ 0.000000] Disabling lock debugging due to kernel taint [ 0.000000] Kernel panic - not syncing: panic_on_warn set ... [ 0.000000] [ 0.000000] CPU: 0 PID: 0 Comm: swapper Tainted: G B 4.4.108-g55b3b8c #7 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 7bf3ab5c8cfaf9dc ffffffff84207c40 ffffffff81d02e5d [ 0.000000] ffffffff83fb34b5 ffffffff84207d18 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d08 ffffffff81417caa 0000000041b58ab3 [ 0.000000] Call Trace: [ 0.000000] [] dump_stack+0xc1/0x124 [ 0.000000] [] panic+0x1aa/0x388 [ 0.000000] [] ? percpu_up_read.constprop.45+0xe1/0xe1 [ 0.000000] [] kasan_end_report+0x50/0x50 [ 0.000000] [] kasan_report+0x15c/0x370 [ 0.000000] [] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] free_all_bootmem+0xf2/0x24d [ 0.000000] [] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [] ? dmar_table_detect+0x60/0x60 [ 0.000000] [] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [] mem_init+0x13/0x74 [ 0.000000] [] start_kernel+0x31d/0x6e9 [ 0.000000] [] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [] x86_64_start_kernel+0x140/0x163 [ 0.000000] Rebooting in 86400 seconds.. [ 0.000000] ACPI MEMORY or I/O RESET_REG. SeaBIOS (version 1.8.2-20171012_061934-google) Total RAM Size = 0x00000001e0000000 = 7680 MiB CPUs found: 2 Max CPUs supported: 2 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 0x000f3050: PCHS=0/0/0 translation=lba LCHS=520/128/63 s=4194304 Booting from Hard Disk 0... early console in decompress_kernel input_data: 0x00000000039be26e input_len: 0x0000000001424e03 output: 0x0000000001000000 output_len: 0x0000000003dcea40 run_size: 0x0000000005504000 Decompressing Linux... Parsing ELF... done. Booting the kernel. [ 0.000000] Initializing cgroup subsys cpuset [ 0.000000] Initializing cgroup subsys cpu [ 0.000000] Initializing cgroup subsys cpuacct [ 0.000000] Initializing cgroup subsys schedtune [ 0.000000] Linux version 4.4.108-g55b3b8c (syzkaller@ci) (gcc version 7.1.1 20170620 (GCC) ) #7 SMP PREEMPT Fri Dec 29 21:50:38 UTC 2017 [ 0.000000] Command line: BOOT_IMAGE=/vmlinuz root=/dev/sda1 console=ttyS0 earlyprintk=serial vsyscall=native rodata=n ftrace_dump_on_oops=orig_cpu oops=panic panic_on_warn=1 nmi_watchdog=panic panic=86400 workqueue.watchdog_thresh=120 [ 0.000000] KERNEL supported cpus: [ 0.000000] Intel GenuineIntel [ 0.000000] AMD AuthenticAMD [ 0.000000] Centaur CentaurHauls [ 0.000000] x86/fpu: xstate_offset[2]: 576, xstate_sizes[2]: 256 [ 0.000000] x86/fpu: Supporting XSAVE feature 0x01: 'x87 floating point registers' [ 0.000000] x86/fpu: Supporting XSAVE feature 0x02: 'SSE registers' [ 0.000000] x86/fpu: Supporting XSAVE feature 0x04: 'AVX registers' [ 0.000000] x86/fpu: Enabled xstate features 0x7, context size is 832 bytes, using 'standard' format. [ 0.000000] x86/fpu: Using 'eager' FPU context switches. [ 0.000000] e820: BIOS-provided physical RAM map: [ 0.000000] BIOS-e820: [mem 0x0000000000000000-0x000000000009fbff] usable [ 0.000000] BIOS-e820: [mem 0x000000000009fc00-0x000000000009ffff] reserved [ 0.000000] BIOS-e820: [mem 0x00000000000f0000-0x00000000000fffff] reserved [ 0.000000] BIOS-e820: [mem 0x0000000000100000-0x00000000bfffcfff] usable [ 0.000000] BIOS-e820: [mem 0x00000000bfffd000-0x00000000bfffffff] reserved [ 0.000000] BIOS-e820: [mem 0x00000000fffbc000-0x00000000ffffffff] reserved [ 0.000000] BIOS-e820: [mem 0x0000000100000000-0x000000021fffffff] usable [ 0.000000] bootconsole [earlyser0] enabled [ 0.000000] NX (Execute Disable) protection: active [ 0.000000] SMBIOS 2.4 present. [ 0.000000] Hypervisor detected: KVM [ 0.000000] e820: last_pfn = 0x220000 max_arch_pfn = 0x400000000 [ 0.000000] x86/PAT: Configuration [0-7]: WB WC UC- UC WB WC UC- WT [ 0.000000] e820: last_pfn = 0xbfffd max_arch_pfn = 0x400000000 [ 0.000000] found SMP MP-table at [mem 0x000f32c0-0x000f32cf] mapped at [ffff8800000f32c0] [ 0.000000] Scanning 1 areas for low memory corruption [ 0.000000] Using GB pages for direct mapping [ 0.000000] ACPI: Early table checksum verification disabled [ 0.000000] ACPI: RSDP 0x00000000000F3090 000014 (v00 Google) [ 0.000000] ACPI: RSDT 0x00000000BFFFDC70 000034 (v01 Google GOOGRSDT 00000001 GOOG 00000001) [ 0.000000] ACPI: FACP 0x00000000BFFFFF00 0000F4 (v02 Google GOOGFACP 00000001 GOOG 00000001) [ 0.000000] ACPI: DSDT 0x00000000BFFFDCB0 0017B2 (v01 Google GOOGDSDT 00000001 GOOG 00000001) [ 0.000000] ACPI: FACS 0x00000000BFFFFEC0 000040 [ 0.000000] ACPI: FACS 0x00000000BFFFFEC0 000040 [ 0.000000] ACPI: SSDT 0x00000000BFFFF590 000930 (v01 Google GOOGSSDT 00000001 GOOG 00000001) [ 0.000000] ACPI: APIC 0x00000000BFFFF4A0 000076 (v01 Google GOOGAPIC 00000001 GOOG 00000001) [ 0.000000] ACPI: WAET 0x00000000BFFFF470 000028 (v01 Google GOOGWAET 00000001 GOOG 00000001) [ 0.000000] kvm-clock: Using msrs 4b564d01 and 4b564d00 [ 0.000000] kvm-clock: cpu 0, msr 2:1fffd001, primary cpu clock [ 0.000000] kvm-clock: using sched offset of 1517705226 cycles [ 0.000000] clocksource: kvm-clock: mask: 0xffffffffffffffff max_cycles: 0x1cd42e4dffb, max_idle_ns: 881590591483 ns [ 0.000000] Zone ranges: [ 0.000000] DMA [mem 0x0000000000001000-0x0000000000ffffff] [ 0.000000] DMA32 [mem 0x0000000001000000-0x00000000ffffffff] [ 0.000000] Normal [mem 0x0000000100000000-0x000000021fffffff] [ 0.000000] Movable zone start for each node [ 0.000000] Early memory node ranges [ 0.000000] node 0: [mem 0x0000000000001000-0x000000000009efff] [ 0.000000] node 0: [mem 0x0000000000100000-0x00000000bfffcfff] [ 0.000000] node 0: [mem 0x0000000100000000-0x000000021fffffff] [ 0.000000] Initmem setup node 0 [mem 0x0000000000001000-0x000000021fffffff] [ 0.000000] kasan: KernelAddressSanitizer initialized [ 0.000000] ACPI: PM-Timer IO Port: 0xb008 [ 0.000000] ACPI: LAPIC_NMI (acpi_id[0xff] dfl dfl lint[0x1]) [ 0.000000] IOAPIC[0]: apic_id 0, version 17, address 0xfec00000, GSI 0-23 [ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 5 global_irq 5 high level) [ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 9 global_irq 9 high level) [ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 10 global_irq 10 high level) [ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 11 global_irq 11 high level) [ 0.000000] Using ACPI (MADT) for SMP configuration information [ 0.000000] smpboot: Allowing 2 CPUs, 0 hotplug CPUs [ 0.000000] PM: Registered nosave memory: [mem 0x00000000-0x00000fff] [ 0.000000] PM: Registered nosave memory: [mem 0x0009f000-0x0009ffff] [ 0.000000] PM: Registered nosave memory: [mem 0x000a0000-0x000effff] [ 0.000000] PM: Registered nosave memory: [mem 0x000f0000-0x000fffff] [ 0.000000] PM: Registered nosave memory: [mem 0xbfffd000-0xbfffffff] [ 0.000000] PM: Registered nosave memory: [mem 0xc0000000-0xfffbbfff] [ 0.000000] PM: Registered nosave memory: [mem 0xfffbc000-0xffffffff] [ 0.000000] e820: [mem 0xc0000000-0xfffbbfff] available for PCI devices [ 0.000000] Booting paravirtualized kernel on KVM [ 0.000000] clocksource: refined-jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604462750000 ns [ 0.000000] setup_percpu: NR_CPUS:64 nr_cpumask_bits:64 nr_cpu_ids:2 nr_node_ids:1 [ 0.000000] PERCPU: Embedded 42 pages/cpu @ffff8801db200000 s132680 r8192 d31160 u1048576 [ 0.000000] Built 1 zonelists in Zone order, mobility grouping on. Total pages: 1935238 [ 0.000000] Kernel command line: BOOT_IMAGE=/vmlinuz root=/dev/sda1 console=ttyS0 earlyprintk=serial vsyscall=native rodata=n ftrace_dump_on_oops=orig_cpu oops=panic panic_on_warn=1 nmi_watchdog=panic panic=86400 workqueue.watchdog_thresh=120 [ 0.000000] PID hash table entries: 4096 (order: 3, 32768 bytes) [ 0.000000] Dentry cache hash table entries: 1048576 (order: 11, 8388608 bytes) [ 0.000000] Inode-cache hash table entries: 524288 (order: 10, 4194304 bytes) [ 0.000000] ================================================================== [ 0.000000] BUG: KASAN: stack-out-of-bounds in reserve_bootmem_region+0xdf/0x130 [ 0.000000] Write of size 8 at addr ffffea0000047ce0 by task swapper/0 [ 0.000000] [ 0.000000] CPU: 0 PID: 0 Comm: swapper Not tainted 4.4.108-g55b3b8c #7 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 94426462a549b2e2 ffffffff84207ce8 ffffffff81d02e5d [ 0.000000] ffffea0000047ce0 ffffea0000047ce0 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d20 ffffffff814fb329 ffffea0000047ce0 [ 0.000000] Call Trace: [ 0.000000] [] dump_stack+0xc1/0x124 [ 0.000000] [] print_address_description+0x189/0x260 [ 0.000000] [] kasan_report+0x285/0x370 [ 0.000000] [] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] free_all_bootmem+0xf2/0x24d [ 0.000000] [] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [] ? dmar_table_detect+0x60/0x60 [ 0.000000] [] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [] mem_init+0x13/0x74 [ 0.000000] [] start_kernel+0x31d/0x6e9 [ 0.000000] [] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [] x86_64_start_kernel+0x140/0x163 [ 0.000000] [ 0.000000] [ 0.000000] Memory state around the buggy address: [ 0.000000] ffffea0000047b80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ffffea0000047c00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] >ffffea0000047c80: 00 00 00 00 00 00 f1 f1 f1 f1 00 00 f2 f2 00 00 [ 0.000000] ^ [ 0.000000] ffffea0000047d00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ffffea0000047d80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ================================================================== [ 0.000000] Disabling lock debugging due to kernel taint [ 0.000000] Kernel panic - not syncing: panic_on_warn set ... [ 0.000000] [ 0.000000] CPU: 0 PID: 0 Comm: swapper Tainted: G B 4.4.108-g55b3b8c #7 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 94426462a549b2e2 ffffffff84207c40 ffffffff81d02e5d [ 0.000000] ffffffff83fb34b5 ffffffff84207d18 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d08 ffffffff81417caa 0000000041b58ab3 [ 0.000000] Call Trace: [ 0.000000] [] dump_stack+0xc1/0x124 [ 0.000000] [] panic+0x1aa/0x388 [ 0.000000] [] ? percpu_up_read.constprop.45+0xe1/0xe1 [ 0.000000] [] kasan_end_report+0x50/0x50 [ 0.000000] [] kasan_report+0x15c/0x370 [ 0.000000] [] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] free_all_bootmem+0xf2/0x24d [ 0.000000] [] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [] ? dmar_table_detect+0x60/0x60 [ 0.000000] [] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [] mem_init+0x13/0x74 [ 0.000000] [] start_kernel+0x31d/0x6e9 [ 0.000000] [] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [] x86_64_start_kernel+0x140/0x163 [ 0.000000] Rebooting in 86400 seconds.. [ 0.000000] ACPI MEMORY or I/O RESET_REG. SeaBIOS (version 1.8.2-20171012_061934-google) Total RAM Size = 0x00000001e0000000 = 7680 MiB CPUs found: 2 Max CPUs supported: 2 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 0x000f3050: PCHS=0/0/0 translation=lba LCHS=520/128/63 s=4194304 Booting from Hard Disk 0... early console in decompress_kernel input_data: 0x00000000039be26e input_len: 0x0000000001424e03 output: 0x0000000001000000 output_len: 0x0000000003dcea40 run_size: 0x0000000005504000 Decompressing Linux... Parsing ELF... done. Booting the kernel. [ 0.000000] Initializing cgroup subsys cpuset [ 0.000000] Initializing cgroup subsys cpu [ 0.000000] Initializing cgroup subsys cpuacct [ 0.000000] Initializing cgroup subsys schedtune [ 0.000000] Linux version 4.4.108-g55b3b8c (syzkaller@ci) (gcc version 7.1.1 20170620 (GCC) ) #7 SMP PREEMPT Fri Dec 29 21:50:38 UTC 2017 [ 0.000000] Command line: BOOT_IMAGE=/vmlinuz root=/dev/sda1 console=ttyS0 earlyprintk=serial vsyscall=native rodata=n ftrace_dump_on_oops=orig_cpu oops=panic panic_on_warn=1 nmi_watchdog=panic panic=86400 workqueue.watchdog_thresh=120 [ 0.000000] KERNEL supported cpus: [ 0.000000] Intel GenuineIntel [ 0.000000] AMD AuthenticAMD [ 0.000000] Centaur CentaurHauls [ 0.000000] x86/fpu: xstate_offset[2]: 576, xstate_sizes[2]: 256 [ 0.000000] x86/fpu: Supporting XSAVE feature 0x01: 'x87 floating point registers' [ 0.000000] x86/fpu: Supporting XSAVE feature 0x02: 'SSE registers' [ 0.000000] x86/fpu: Supporting XSAVE feature 0x04: 'AVX registers' [ 0.000000] x86/fpu: Enabled xstate features 0x7, context size is 832 bytes, using 'standard' format. [ 0.000000] x86/fpu: Using 'eager' FPU context switches. [ 0.000000] e820: BIOS-provided physical RAM map: [ 0.000000] BIOS-e820: [mem 0x0000000000000000-0x000000000009fbff] usable [ 0.000000] BIOS-e820: [mem 0x000000000009fc00-0x000000000009ffff] reserved [ 0.000000] BIOS-e820: [mem 0x00000000000f0000-0x00000000000fffff] reserved [ 0.000000] BIOS-e820: [mem 0x0000000000100000-0x00000000bfffcfff] usable [ 0.000000] BIOS-e820: [mem 0x00000000bfffd000-0x00000000bfffffff] reserved [ 0.000000] BIOS-e820: [mem 0x00000000fffbc000-0x00000000ffffffff] reserved [ 0.000000] BIOS-e820: [mem 0x0000000100000000-0x000000021fffffff] usable [ 0.000000] bootconsole [earlyser0] enabled [ 0.000000] NX (Execute Disable) protection: active [ 0.000000] SMBIOS 2.4 present. [ 0.000000] Hypervisor detected: KVM [ 0.000000] e820: last_pfn = 0x220000 max_arch_pfn = 0x400000000 [ 0.000000] x86/PAT: Configuration [0-7]: WB WC UC- UC WB WC UC- WT [ 0.000000] e820: last_pfn = 0xbfffd max_arch_pfn = 0x400000000 [ 0.000000] found SMP MP-table at [mem 0x000f32c0-0x000f32cf] mapped at [ffff8800000f32c0] [ 0.000000] Scanning 1 areas for low memory corruption [ 0.000000] Using GB pages for direct mapping [ 0.000000] ACPI: Early table checksum verification disabled [ 0.000000] ACPI: RSDP 0x00000000000F3090 000014 (v00 Google) [ 0.000000] ACPI: RSDT 0x00000000BFFFDC70 000034 (v01 Google GOOGRSDT 00000001 GOOG 00000001) [ 0.000000] ACPI: FACP 0x00000000BFFFFF00 0000F4 (v02 Google GOOGFACP 00000001 GOOG 00000001) [ 0.000000] ACPI: DSDT 0x00000000BFFFDCB0 0017B2 (v01 Google GOOGDSDT 00000001 GOOG 00000001) [ 0.000000] ACPI: FACS 0x00000000BFFFFEC0 000040 [ 0.000000] ACPI: FACS 0x00000000BFFFFEC0 000040 [ 0.000000] ACPI: SSDT 0x00000000BFFFF590 000930 (v01 Google GOOGSSDT 00000001 GOOG 00000001) [ 0.000000] ACPI: APIC 0x00000000BFFFF4A0 000076 (v01 Google GOOGAPIC 00000001 GOOG 00000001) [ 0.000000] ACPI: WAET 0x00000000BFFFF470 000028 (v01 Google GOOGWAET 00000001 GOOG 00000001) [ 0.000000] kvm-clock: Using msrs 4b564d01 and 4b564d00 [ 0.000000] kvm-clock: cpu 0, msr 2:1fffd001, primary cpu clock [ 0.000000] kvm-clock: using sched offset of 1299649241 cycles [ 0.000000] clocksource: kvm-clock: mask: 0xffffffffffffffff max_cycles: 0x1cd42e4dffb, max_idle_ns: 881590591483 ns [ 0.000000] Zone ranges: [ 0.000000] DMA [mem 0x0000000000001000-0x0000000000ffffff] [ 0.000000] DMA32 [mem 0x0000000001000000-0x00000000ffffffff] [ 0.000000] Normal [mem 0x0000000100000000-0x000000021fffffff] [ 0.000000] Movable zone start for each node [ 0.000000] Early memory node ranges [ 0.000000] node 0: [mem 0x0000000000001000-0x000000000009efff] [ 0.000000] node 0: [mem 0x0000000000100000-0x00000000bfffcfff] [ 0.000000] node 0: [mem 0x0000000100000000-0x000000021fffffff] [ 0.000000] Initmem setup node 0 [mem 0x0000000000001000-0x000000021fffffff] [ 0.000000] kasan: KernelAddressSanitizer initialized [ 0.000000] ACPI: PM-Timer IO Port: 0xb008 [ 0.000000] ACPI: LAPIC_NMI (acpi_id[0xff] dfl dfl lint[0x1]) [ 0.000000] IOAPIC[0]: apic_id 0, version 17, address 0xfec00000, GSI 0-23 [ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 5 global_irq 5 high level) [ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 9 global_irq 9 high level) [ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 10 global_irq 10 high level) [ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 11 global_irq 11 high level) [ 0.000000] Using ACPI (MADT) for SMP configuration information [ 0.000000] smpboot: Allowing 2 CPUs, 0 hotplug CPUs [ 0.000000] PM: Registered nosave memory: [mem 0x00000000-0x00000fff] [ 0.000000] PM: Registered nosave memory: [mem 0x0009f000-0x0009ffff] [ 0.000000] PM: Registered nosave memory: [mem 0x000a0000-0x000effff] [ 0.000000] PM: Registered nosave memory: [mem 0x000f0000-0x000fffff] [ 0.000000] PM: Registered nosave memory: [mem 0xbfffd000-0xbfffffff] [ 0.000000] PM: Registered nosave memory: [mem 0xc0000000-0xfffbbfff] [ 0.000000] PM: Registered nosave memory: [mem 0xfffbc000-0xffffffff] [ 0.000000] e820: [mem 0xc0000000-0xfffbbfff] available for PCI devices [ 0.000000] Booting paravirtualized kernel on KVM [ 0.000000] clocksource: refined-jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604462750000 ns [ 0.000000] setup_percpu: NR_CPUS:64 nr_cpumask_bits:64 nr_cpu_ids:2 nr_node_ids:1 [ 0.000000] PERCPU: Embedded 42 pages/cpu @ffff8801db200000 s132680 r8192 d31160 u1048576 [ 0.000000] Built 1 zonelists in Zone order, mobility grouping on. Total pages: 1935238 [ 0.000000] Kernel command line: BOOT_IMAGE=/vmlinuz root=/dev/sda1 console=ttyS0 earlyprintk=serial vsyscall=native rodata=n ftrace_dump_on_oops=orig_cpu oops=panic panic_on_warn=1 nmi_watchdog=panic panic=86400 workqueue.watchdog_thresh=120 [ 0.000000] PID hash table entries: 4096 (order: 3, 32768 bytes) [ 0.000000] Dentry cache hash table entries: 1048576 (order: 11, 8388608 bytes) [ 0.000000] Inode-cache hash table entries: 524288 (order: 10, 4194304 bytes) [ 0.000000] ================================================================== [ 0.000000] BUG: KASAN: stack-out-of-bounds in reserve_bootmem_region+0xdf/0x130 [ 0.000000] Write of size 8 at addr ffffea0000047ce0 by task swapper/0 [ 0.000000] [ 0.000000] CPU: 0 PID: 0 Comm: swapper Not tainted 4.4.108-g55b3b8c #7 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 76620bcb87695a4b ffffffff84207ce8 ffffffff81d02e5d [ 0.000000] ffffea0000047ce0 ffffea0000047ce0 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d20 ffffffff814fb329 ffffea0000047ce0 [ 0.000000] Call Trace: [ 0.000000] [] dump_stack+0xc1/0x124 [ 0.000000] [] print_address_description+0x189/0x260 [ 0.000000] [] kasan_report+0x285/0x370 [ 0.000000] [] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] free_all_bootmem+0xf2/0x24d [ 0.000000] [] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [] ? dmar_table_detect+0x60/0x60 [ 0.000000] [] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [] mem_init+0x13/0x74 [ 0.000000] [] start_kernel+0x31d/0x6e9 [ 0.000000] [] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [] x86_64_start_kernel+0x140/0x163 [ 0.000000] [ 0.000000] [ 0.000000] Memory state around the buggy address: [ 0.000000] ffffea0000047b80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ffffea0000047c00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] >ffffea0000047c80: 00 00 00 00 00 00 f1 f1 f1 f1 00 00 f2 f2 00 00 [ 0.000000] ^ [ 0.000000] ffffea0000047d00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ffffea0000047d80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ================================================================== [ 0.000000] Disabling lock debugging due to kernel taint [ 0.000000] Kernel panic - not syncing: panic_on_warn set ... [ 0.000000] [ 0.000000] CPU: 0 PID: 0 Comm: swapper Tainted: G B 4.4.108-g55b3b8c #7 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 76620bcb87695a4b ffffffff84207c40 ffffffff81d02e5d [ 0.000000] ffffffff83fb34b5 ffffffff84207d18 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d08 ffffffff81417caa 0000000041b58ab3 [ 0.000000] Call Trace: [ 0.000000] [] dump_stack+0xc1/0x124 [ 0.000000] [] panic+0x1aa/0x388 [ 0.000000] [] ? percpu_up_read.constprop.45+0xe1/0xe1 [ 0.000000] [] kasan_end_report+0x50/0x50 [ 0.000000] [] kasan_report+0x15c/0x370 [ 0.000000] [] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] free_all_bootmem+0xf2/0x24d [ 0.000000] [] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [] ? dmar_table_detect+0x60/0x60 [ 0.000000] [] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [] mem_init+0x13/0x74 [ 0.000000] [] start_kernel+0x31d/0x6e9 [ 0.000000] [] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [] x86_64_start_kernel+0x140/0x163 [ 0.000000] Rebooting in 86400 seconds.. [ 0.000000] ACPI MEMORY or I/O RESET_REG. SeaBIOS (version 1.8.2-20171012_061934-google) Total RAM Size = 0x00000001e0000000 = 7680 MiB CPUs found: 2 Max CPUs supported: 2 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 0x000f3050: PCHS=0/0/0 translation=lba LCHS=520/128/63 s=4194304 Booting from Hard Disk 0... early console in decompress_kernel input_data: 0x00000000039be26e input_len: 0x0000000001424e03 output: 0x0000000001000000 output_len: 0x0000000003dcea40 run_size: 0x0000000005504000 Decompressing Linux... Parsing ELF... done. Booting the kernel. [ 0.000000] Initializing cgroup subsys cpuset [ 0.000000] Initializing cgroup subsys cpu [ 0.000000] Initializing cgroup subsys cpuacct [ 0.000000] Initializing cgroup subsys schedtune [ 0.000000] Linux version 4.4.108-g55b3b8c (syzkaller@ci) (gcc version 7.1.1 20170620 (GCC) ) #7 SMP PREEMPT Fri Dec 29 21:50:38 UTC 2017 [ 0.000000] Command line: BOOT_IMAGE=/vmlinuz root=/dev/sda1 console=ttyS0 earlyprintk=serial vsyscall=native rodata=n ftrace_dump_on_oops=orig_cpu oops=panic panic_on_warn=1 nmi_watchdog=panic panic=86400 workqueue.watchdog_thresh=120 [ 0.000000] KERNEL supported cpus: [ 0.000000] Intel GenuineIntel [ 0.000000] AMD AuthenticAMD [ 0.000000] Centaur CentaurHauls [ 0.000000] x86/fpu: xstate_offset[2]: 576, xstate_sizes[2]: 256 [ 0.000000] x86/fpu: Supporting XSAVE feature 0x01: 'x87 floating point registers' [ 0.000000] x86/fpu: Supporting XSAVE feature 0x02: 'SSE registers' [ 0.000000] x86/fpu: Supporting XSAVE feature 0x04: 'AVX registers' [ 0.000000] x86/fpu: Enabled xstate features 0x7, context size is 832 bytes, using 'standard' format. [ 0.000000] x86/fpu: Using 'eager' FPU context switches. [ 0.000000] e820: BIOS-provided physical RAM map: [ 0.000000] BIOS-e820: [mem 0x0000000000000000-0x000000000009fbff] usable [ 0.000000] BIOS-e820: [mem 0x000000000009fc00-0x000000000009ffff] reserved [ 0.000000] BIOS-e820: [mem 0x00000000000f0000-0x00000000000fffff] reserved [ 0.000000] BIOS-e820: [mem 0x0000000000100000-0x00000000bfffcfff] usable [ 0.000000] BIOS-e820: [mem 0x00000000bfffd000-0x00000000bfffffff] reserved [ 0.000000] BIOS-e820: [mem 0x00000000fffbc000-0x00000000ffffffff] reserved [ 0.000000] BIOS-e820: [mem 0x0000000100000000-0x000000021fffffff] usable [ 0.000000] bootconsole [earlyser0] enabled [ 0.000000] NX (Execute Disable) protection: active [ 0.000000] SMBIOS 2.4 present. [ 0.000000] Hypervisor detected: KVM [ 0.000000] e820: last_pfn = 0x220000 max_arch_pfn = 0x400000000 [ 0.000000] x86/PAT: Configuration [0-7]: WB WC UC- UC WB WC UC- WT [ 0.000000] e820: last_pfn = 0xbfffd max_arch_pfn = 0x400000000 [ 0.000000] found SMP MP-table at [mem 0x000f32c0-0x000f32cf] mapped at [ffff8800000f32c0] [ 0.000000] Scanning 1 areas for low memory corruption [ 0.000000] Using GB pages for direct mapping [ 0.000000] ACPI: Early table checksum verification disabled [ 0.000000] ACPI: RSDP 0x00000000000F3090 000014 (v00 Google) [ 0.000000] ACPI: RSDT 0x00000000BFFFDC70 000034 (v01 Google GOOGRSDT 00000001 GOOG 00000001) [ 0.000000] ACPI: FACP 0x00000000BFFFFF00 0000F4 (v02 Google GOOGFACP 00000001 GOOG 00000001) [ 0.000000] ACPI: DSDT 0x00000000BFFFDCB0 0017B2 (v01 Google GOOGDSDT 00000001 GOOG 00000001) [ 0.000000] ACPI: FACS 0x00000000BFFFFEC0 000040 [ 0.000000] ACPI: FACS 0x00000000BFFFFEC0 000040 [ 0.000000] ACPI: SSDT 0x00000000BFFFF590 000930 (v01 Google GOOGSSDT 00000001 GOOG 00000001) [ 0.000000] ACPI: APIC 0x00000000BFFFF4A0 000076 (v01 Google GOOGAPIC 00000001 GOOG 00000001) [ 0.000000] ACPI: WAET 0x00000000BFFFF470 000028 (v01 Google GOOGWAET 00000001 GOOG 00000001) [ 0.000000] kvm-clock: Using msrs 4b564d01 and 4b564d00 [ 0.000000] kvm-clock: cpu 0, msr 2:1fffd001, primary cpu clock [ 0.000000] kvm-clock: using sched offset of 1286548381 cycles [ 0.000000] clocksource: kvm-clock: mask: 0xffffffffffffffff max_cycles: 0x1cd42e4dffb, max_idle_ns: 881590591483 ns [ 0.000000] Zone ranges: [ 0.000000] DMA [mem 0x0000000000001000-0x0000000000ffffff] [ 0.000000] DMA32 [mem 0x0000000001000000-0x00000000ffffffff] [ 0.000000] Normal [mem 0x0000000100000000-0x000000021fffffff] [ 0.000000] Movable zone start for each node [ 0.000000] Early memory node ranges [ 0.000000] node 0: [mem 0x0000000000001000-0x000000000009efff] [ 0.000000] node 0: [mem 0x0000000000100000-0x00000000bfffcfff] [ 0.000000] node 0: [mem 0x0000000100000000-0x000000021fffffff] [ 0.000000] Initmem setup node 0 [mem 0x0000000000001000-0x000000021fffffff] [ 0.000000] kasan: KernelAddressSanitizer initialized [ 0.000000] ACPI: PM-Timer IO Port: 0xb008 [ 0.000000] ACPI: LAPIC_NMI (acpi_id[0xff] dfl dfl lint[0x1]) [ 0.000000] IOAPIC[0]: apic_id 0, version 17, address 0xfec00000, GSI 0-23 [ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 5 global_irq 5 high level) [ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 9 global_irq 9 high level) [ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 10 global_irq 10 high level) [ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 11 global_irq 11 high level) [ 0.000000] Using ACPI (MADT) for SMP configuration information [ 0.000000] smpboot: Allowing 2 CPUs, 0 hotplug CPUs [ 0.000000] PM: Registered nosave memory: [mem 0x00000000-0x00000fff] [ 0.000000] PM: Registered nosave memory: [mem 0x0009f000-0x0009ffff] [ 0.000000] PM: Registered nosave memory: [mem 0x000a0000-0x000effff] [ 0.000000] PM: Registered nosave memory: [mem 0x000f0000-0x000fffff] [ 0.000000] PM: Registered nosave memory: [mem 0xbfffd000-0xbfffffff] [ 0.000000] PM: Registered nosave memory: [mem 0xc0000000-0xfffbbfff] [ 0.000000] PM: Registered nosave memory: [mem 0xfffbc000-0xffffffff] [ 0.000000] e820: [mem 0xc0000000-0xfffbbfff] available for PCI devices [ 0.000000] Booting paravirtualized kernel on KVM [ 0.000000] clocksource: refined-jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604462750000 ns [ 0.000000] setup_percpu: NR_CPUS:64 nr_cpumask_bits:64 nr_cpu_ids:2 nr_node_ids:1 [ 0.000000] PERCPU: Embedded 42 pages/cpu @ffff8801db200000 s132680 r8192 d31160 u1048576 [ 0.000000] Built 1 zonelists in Zone order, mobility grouping on. Total pages: 1935238 [ 0.000000] Kernel command line: BOOT_IMAGE=/vmlinuz root=/dev/sda1 console=ttyS0 earlyprintk=serial vsyscall=native rodata=n ftrace_dump_on_oops=orig_cpu oops=panic panic_on_warn=1 nmi_watchdog=panic panic=86400 workqueue.watchdog_thresh=120 [ 0.000000] PID hash table entries: 4096 (order: 3, 32768 bytes) [ 0.000000] Dentry cache hash table entries: 1048576 (order: 11, 8388608 bytes) [ 0.000000] Inode-cache hash table entries: 524288 (order: 10, 4194304 bytes) [ 0.000000] ================================================================== [ 0.000000] BUG: KASAN: stack-out-of-bounds in reserve_bootmem_region+0xdf/0x130 [ 0.000000] Write of size 8 at addr ffffea0000047ce0 by task swapper/0 [ 0.000000] [ 0.000000] CPU: 0 PID: 0 Comm: swapper Not tainted 4.4.108-g55b3b8c #7 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 7485d9a5858d2825 ffffffff84207ce8 ffffffff81d02e5d [ 0.000000] ffffea0000047ce0 ffffea0000047ce0 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d20 ffffffff814fb329 ffffea0000047ce0 [ 0.000000] Call Trace: [ 0.000000] [] dump_stack+0xc1/0x124 [ 0.000000] [] print_address_description+0x189/0x260 [ 0.000000] [] kasan_report+0x285/0x370 [ 0.000000] [] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] free_all_bootmem+0xf2/0x24d [ 0.000000] [] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [] ? dmar_table_detect+0x60/0x60 [ 0.000000] [] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [] mem_init+0x13/0x74 [ 0.000000] [] start_kernel+0x31d/0x6e9 [ 0.000000] [] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [] x86_64_start_kernel+0x140/0x163 [ 0.000000] [ 0.000000] [ 0.000000] Memory state around the buggy address: [ 0.000000] ffffea0000047b80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ffffea0000047c00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] >ffffea0000047c80: 00 00 00 00 00 00 f1 f1 f1 f1 00 00 f2 f2 00 00 [ 0.000000] ^ [ 0.000000] ffffea0000047d00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ffffea0000047d80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ================================================================== [ 0.000000] Disabling lock debugging due to kernel taint [ 0.000000] Kernel panic - not syncing: panic_on_warn set ... [ 0.000000] [ 0.000000] CPU: 0 PID: 0 Comm: swapper Tainted: G B 4.4.108-g55b3b8c #7 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 7485d9a5858d2825 ffffffff84207c40 ffffffff81d02e5d [ 0.000000] ffffffff83fb34b5 ffffffff84207d18 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d08 ffffffff81417caa 0000000041b58ab3 [ 0.000000] Call Trace: [ 0.000000] [] dump_stack+0xc1/0x124 [ 0.000000] [] panic+0x1aa/0x388 [ 0.000000] [] ? percpu_up_read.constprop.45+0xe1/0xe1 [ 0.000000] [] kasan_end_report+0x50/0x50 [ 0.000000] [] kasan_report+0x15c/0x370 [ 0.000000] [] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] free_all_bootmem+0xf2/0x24d [ 0.000000] [] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [] ? dmar_table_detect+0x60/0x60 [ 0.000000] [] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [] mem_init+0x13/0x74 [ 0.000000] [] start_kernel+0x31d/0x6e9 [ 0.000000] [] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [] x86_64_start_kernel+0x140/0x163 [ 0.000000] Rebooting in 86400 seconds.. [ 0.000000] ACPI MEMORY or I/O RESET_REG. SeaBIOS (version 1.8.2-20171012_061934-google) Total RAM Size = 0x00000001e0000000 = 7680 MiB CPUs found: 2 Max CPUs supported: 2 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 0x000f3050: PCHS=0/0/0 translation=lba LCHS=520/128/63 s=4194304 Booting from Hard Disk 0... early console in decompress_kernel input_data: 0x00000000039be26e input_len: 0x0000000001424e03 output: 0x0000000001000000 output_len: 0x0000000003dcea40 run_size: 0x0000000005504000 Decompressing Linux... Parsing ELF... done. Booting the kernel. [ 0.000000] Initializing cgroup subsys cpuset [ 0.000000] Initializing cgroup subsys cpu [ 0.000000] Initializing cgroup subsys cpuacct [ 0.000000] Initializing cgroup subsys schedtune [ 0.000000] Linux version 4.4.108-g55b3b8c (syzkaller@ci) (gcc version 7.1.1 20170620 (GCC) ) #7 SMP PREEMPT Fri Dec 29 21:50:38 UTC 2017 [ 0.000000] Command line: BOOT_IMAGE=/vmlinuz root=/dev/sda1 console=ttyS0 earlyprintk=serial vsyscall=native rodata=n ftrace_dump_on_oops=orig_cpu oops=panic panic_on_warn=1 nmi_watchdog=panic panic=86400 workqueue.watchdog_thresh=120 [ 0.000000] KERNEL supported cpus: [ 0.000000] Intel GenuineIntel [ 0.000000] AMD AuthenticAMD [ 0.000000] Centaur CentaurHauls [ 0.000000] x86/fpu: xstate_offset[2]: 576, xstate_sizes[2]: 256 [ 0.000000] x86/fpu: Supporting XSAVE feature 0x01: 'x87 floating point registers' [ 0.000000] x86/fpu: Supporting XSAVE feature 0x02: 'SSE registers' [ 0.000000] x86/fpu: Supporting XSAVE feature 0x04: 'AVX registers' [ 0.000000] x86/fpu: Enabled xstate features 0x7, context size is 832 bytes, using 'standard' format. [ 0.000000] x86/fpu: Using 'eager' FPU context switches. [ 0.000000] e820: BIOS-provided physical RAM map: [ 0.000000] BIOS-e820: [mem 0x0000000000000000-0x000000000009fbff] usable [ 0.000000] BIOS-e820: [mem 0x000000000009fc00-0x000000000009ffff] reserved [ 0.000000] BIOS-e820: [mem 0x00000000000f0000-0x00000000000fffff] reserved [ 0.000000] BIOS-e820: [mem 0x0000000000100000-0x00000000bfffcfff] usable [ 0.000000] BIOS-e820: [mem 0x00000000bfffd000-0x00000000bfffffff] reserved [ 0.000000] BIOS-e820: [mem 0x00000000fffbc000-0x00000000ffffffff] reserved [ 0.000000] BIOS-e820: [mem 0x0000000100000000-0x000000021fffffff] usable [ 0.000000] bootconsole [earlyser0] enabled [ 0.000000] NX (Execute Disable) protection: active [ 0.000000] SMBIOS 2.4 present. [ 0.000000] Hypervisor detected: KVM [ 0.000000] e820: last_pfn = 0x220000 max_arch_pfn = 0x400000000 [ 0.000000] x86/PAT: Configuration [0-7]: WB WC UC- UC WB WC UC- WT [ 0.000000] e820: last_pfn = 0xbfffd max_arch_pfn = 0x400000000 [ 0.000000] found SMP MP-table at [mem 0x000f32c0-0x000f32cf] mapped at [ffff8800000f32c0] [ 0.000000] Scanning 1 areas for low memory corruption [ 0.000000] Using GB pages for direct mapping [ 0.000000] ACPI: Early table checksum verification disabled [ 0.000000] ACPI: RSDP 0x00000000000F3090 000014 (v00 Google) [ 0.000000] ACPI: RSDT 0x00000000BFFFDC70 000034 (v01 Google GOOGRSDT 00000001 GOOG 00000001) [ 0.000000] ACPI: FACP 0x00000000BFFFFF00 0000F4 (v02 Google GOOGFACP 00000001 GOOG 00000001) [ 0.000000] ACPI: DSDT 0x00000000BFFFDCB0 0017B2 (v01 Google GOOGDSDT 00000001 GOOG 00000001) [ 0.000000] ACPI: FACS 0x00000000BFFFFEC0 000040 [ 0.000000] ACPI: FACS 0x00000000BFFFFEC0 000040 [ 0.000000] ACPI: SSDT 0x00000000BFFFF590 000930 (v01 Google GOOGSSDT 00000001 GOOG 00000001) [ 0.000000] ACPI: APIC 0x00000000BFFFF4A0 000076 (v01 Google GOOGAPIC 00000001 GOOG 00000001) [ 0.000000] ACPI: WAET 0x00000000BFFFF470 000028 (v01 Google GOOGWAET 00000001 GOOG 00000001) [ 0.000000] kvm-clock: Using msrs 4b564d01 and 4b564d00 [ 0.000000] kvm-clock: cpu 0, msr 2:1fffd001, primary cpu clock [ 0.000000] kvm-clock: using sched offset of 1264378039 cycles [ 0.000000] clocksource: kvm-clock: mask: 0xffffffffffffffff max_cycles: 0x1cd42e4dffb, max_idle_ns: 881590591483 ns [ 0.000000] Zone ranges: [ 0.000000] DMA [mem 0x0000000000001000-0x0000000000ffffff] [ 0.000000] DMA32 [mem 0x0000000001000000-0x00000000ffffffff] [ 0.000000] Normal [mem 0x0000000100000000-0x000000021fffffff] [ 0.000000] Movable zone start for each node [ 0.000000] Early memory node ranges [ 0.000000] node 0: [mem 0x0000000000001000-0x000000000009efff] [ 0.000000] node 0: [mem 0x0000000000100000-0x00000000bfffcfff] [ 0.000000] node 0: [mem 0x0000000100000000-0x000000021fffffff] [ 0.000000] Initmem setup node 0 [mem 0x0000000000001000-0x000000021fffffff] [ 0.000000] kasan: KernelAddressSanitizer initialized [ 0.000000] ACPI: PM-Timer IO Port: 0xb008 [ 0.000000] ACPI: LAPIC_NMI (acpi_id[0xff] dfl dfl lint[0x1]) [ 0.000000] IOAPIC[0]: apic_id 0, version 17, address 0xfec00000, GSI 0-23 [ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 5 global_irq 5 high level) [ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 9 global_irq 9 high level) [ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 10 global_irq 10 high level) [ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 11 global_irq 11 high level) [ 0.000000] Using ACPI (MADT) for SMP configuration information [ 0.000000] smpboot: Allowing 2 CPUs, 0 hotplug CPUs [ 0.000000] PM: Registered nosave memory: [mem 0x00000000-0x00000fff] [ 0.000000] PM: Registered nosave memory: [mem 0x0009f000-0x0009ffff] [ 0.000000] PM: Registered nosave memory: [mem 0x000a0000-0x000effff] [ 0.000000] PM: Registered nosave memory: [mem 0x000f0000-0x000fffff] [ 0.000000] PM: Registered nosave memory: [mem 0xbfffd000-0xbfffffff] [ 0.000000] PM: Registered nosave memory: [mem 0xc0000000-0xfffbbfff] [ 0.000000] PM: Registered nosave memory: [mem 0xfffbc000-0xffffffff] [ 0.000000] e820: [mem 0xc0000000-0xfffbbfff] available for PCI devices [ 0.000000] Booting paravirtualized kernel on KVM [ 0.000000] clocksource: refined-jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604462750000 ns [ 0.000000] setup_percpu: NR_CPUS:64 nr_cpumask_bits:64 nr_cpu_ids:2 nr_node_ids:1 [ 0.000000] PERCPU: Embedded 42 pages/cpu @ffff8801db200000 s132680 r8192 d31160 u1048576 [ 0.000000] Built 1 zonelists in Zone order, mobility grouping on. Total pages: 1935238 [ 0.000000] Kernel command line: BOOT_IMAGE=/vmlinuz root=/dev/sda1 console=ttyS0 earlyprintk=serial vsyscall=native rodata=n ftrace_dump_on_oops=orig_cpu oops=panic panic_on_warn=1 nmi_watchdog=panic panic=86400 workqueue.watchdog_thresh=120 [ 0.000000] PID hash table entries: 4096 (order: 3, 32768 bytes) [ 0.000000] Dentry cache hash table entries: 1048576 (order: 11, 8388608 bytes) [ 0.000000] Inode-cache hash table entries: 524288 (order: 10, 4194304 bytes) [ 0.000000] ================================================================== [ 0.000000] BUG: KASAN: stack-out-of-bounds in reserve_bootmem_region+0xdf/0x130 [ 0.000000] Write of size 8 at addr ffffea0000047ce0 by task swapper/0 [ 0.000000] [ 0.000000] CPU: 0 PID: 0 Comm: swapper Not tainted 4.4.108-g55b3b8c #7 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 71856682828cb502 ffffffff84207ce8 ffffffff81d02e5d [ 0.000000] ffffea0000047ce0 ffffea0000047ce0 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d20 ffffffff814fb329 ffffea0000047ce0 [ 0.000000] Call Trace: [ 0.000000] [] dump_stack+0xc1/0x124 [ 0.000000] [] print_address_description+0x189/0x260 [ 0.000000] [] kasan_report+0x285/0x370 [ 0.000000] [] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] free_all_bootmem+0xf2/0x24d [ 0.000000] [] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [] ? dmar_table_detect+0x60/0x60 [ 0.000000] [] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [] mem_init+0x13/0x74 [ 0.000000] [] start_kernel+0x31d/0x6e9 [ 0.000000] [] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [] x86_64_start_kernel+0x140/0x163 [ 0.000000] [ 0.000000] [ 0.000000] Memory state around the buggy address: [ 0.000000] ffffea0000047b80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ffffea0000047c00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] >ffffea0000047c80: 00 00 00 00 00 00 f1 f1 f1 f1 00 00 f2 f2 00 00 [ 0.000000] ^ [ 0.000000] ffffea0000047d00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ffffea0000047d80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ================================================================== [ 0.000000] Disabling lock debugging due to kernel taint [ 0.000000] Kernel panic - not syncing: panic_on_warn set ... [ 0.000000] [ 0.000000] CPU: 0 PID: 0 Comm: swapper Tainted: G B 4.4.108-g55b3b8c #7 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 71856682828cb502 ffffffff84207c40 ffffffff81d02e5d [ 0.000000] ffffffff83fb34b5 ffffffff84207d18 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d08 ffffffff81417caa 0000000041b58ab3 [ 0.000000] Call Trace: [ 0.000000] [] dump_stack+0xc1/0x124 [ 0.000000] [] panic+0x1aa/0x388 [ 0.000000] [] ? percpu_up_read.constprop.45+0xe1/0xe1 [ 0.000000] [] kasan_end_report+0x50/0x50 [ 0.000000] [] kasan_report+0x15c/0x370 [ 0.000000] [] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] free_all_bootmem+0xf2/0x24d [ 0.000000] [] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [] ? dmar_table_detect+0x60/0x60 [ 0.000000] [] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [] mem_init+0x13/0x74 [ 0.000000] [] start_kernel+0x31d/0x6e9 [ 0.000000] [] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [] x86_64_start_kernel+0x140/0x163 [ 0.000000] Rebooting in 86400 seconds.. [ 0.000000] ACPI MEMORY or I/O RESET_REG. SeaBIOS (version 1.8.2-20171012_061934-google) Total RAM Size = 0x00000001e0000000 = 7680 MiB CPUs found: 2 Max CPUs supported: 2 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 0x000f3050: PCHS=0/0/0 translation=lba LCHS=520/128/63 s=4194304 Booting from Hard Disk 0... early console in decompress_kernel input_data: 0x00000000039be26e input_len: 0x0000000001424e03 output: 0x0000000001000000 output_len: 0x0000000003dcea40 run_size: 0x0000000005504000 Decompressing Linux... Parsing ELF... done. Booting the kernel. [ 0.000000] Initializing cgroup subsys cpuset [ 0.000000] Initializing cgroup subsys cpu [ 0.000000] Initializing cgroup subsys cpuacct [ 0.000000] Initializing cgroup subsys schedtune [ 0.000000] Linux version 4.4.108-g55b3b8c (syzkaller@ci) (gcc version 7.1.1 20170620 (GCC) ) #7 SMP PREEMPT Fri Dec 29 21:50:38 UTC 2017 [ 0.000000] Command line: BOOT_IMAGE=/vmlinuz root=/dev/sda1 console=ttyS0 earlyprintk=serial vsyscall=native rodata=n ftrace_dump_on_oops=orig_cpu oops=panic panic_on_warn=1 nmi_watchdog=panic panic=86400 workqueue.watchdog_thresh=120 [ 0.000000] KERNEL supported cpus: [ 0.000000] Intel GenuineIntel [ 0.000000] AMD AuthenticAMD [ 0.000000] Centaur CentaurHauls [ 0.000000] x86/fpu: xstate_offset[2]: 576, xstate_sizes[2]: 256 [ 0.000000] x86/fpu: Supporting XSAVE feature 0x01: 'x87 floating point registers' [ 0.000000] x86/fpu: Supporting XSAVE feature 0x02: 'SSE registers' [ 0.000000] x86/fpu: Supporting XSAVE feature 0x04: 'AVX registers' [ 0.000000] x86/fpu: Enabled xstate features 0x7, context size is 832 bytes, using 'standard' format. [ 0.000000] x86/fpu: Using 'eager' FPU context switches. [ 0.000000] e820: BIOS-provided physical RAM map: [ 0.000000] BIOS-e820: [mem 0x0000000000000000-0x000000000009fbff] usable [ 0.000000] BIOS-e820: [mem 0x000000000009fc00-0x000000000009ffff] reserved [ 0.000000] BIOS-e820: [mem 0x00000000000f0000-0x00000000000fffff] reserved [ 0.000000] BIOS-e820: [mem 0x0000000000100000-0x00000000bfffcfff] usable [ 0.000000] BIOS-e820: [mem 0x00000000bfffd000-0x00000000bfffffff] reserved [ 0.000000] BIOS-e820: [mem 0x00000000fffbc000-0x00000000ffffffff] reserved [ 0.000000] BIOS-e820: [mem 0x0000000100000000-0x000000021fffffff] usable [ 0.000000] bootconsole [earlyser0] enabled [ 0.000000] NX (Execute Disable) protection: active [ 0.000000] SMBIOS 2.4 present. [ 0.000000] Hypervisor detected: KVM [ 0.000000] e820: last_pfn = 0x220000 max_arch_pfn = 0x400000000 [ 0.000000] x86/PAT: Configuration [0-7]: WB WC UC- UC WB WC UC- WT [ 0.000000] e820: last_pfn = 0xbfffd max_arch_pfn = 0x400000000 [ 0.000000] found SMP MP-table at [mem 0x000f32c0-0x000f32cf] mapped at [ffff8800000f32c0] [ 0.000000] Scanning 1 areas for low memory corruption [ 0.000000] Using GB pages for direct mapping [ 0.000000] ACPI: Early table checksum verification disabled [ 0.000000] ACPI: RSDP 0x00000000000F3090 000014 (v00 Google) [ 0.000000] ACPI: RSDT 0x00000000BFFFDC70 000034 (v01 Google GOOGRSDT 00000001 GOOG 00000001) [ 0.000000] ACPI: FACP 0x00000000BFFFFF00 0000F4 (v02 Google GOOGFACP 00000001 GOOG 00000001) [ 0.000000] ACPI: DSDT 0x00000000BFFFDCB0 0017B2 (v01 Google GOOGDSDT 00000001 GOOG 00000001) [ 0.000000] ACPI: FACS 0x00000000BFFFFEC0 000040 [ 0.000000] ACPI: FACS 0x00000000BFFFFEC0 000040 [ 0.000000] ACPI: SSDT 0x00000000BFFFF590 000930 (v01 Google GOOGSSDT 00000001 GOOG 00000001) [ 0.000000] ACPI: APIC 0x00000000BFFFF4A0 000076 (v01 Google GOOGAPIC 00000001 GOOG 00000001) [ 0.000000] ACPI: WAET 0x00000000BFFFF470 000028 (v01 Google GOOGWAET 00000001 GOOG 00000001) [ 0.000000] kvm-clock: Using msrs 4b564d01 and 4b564d00 [ 0.000000] kvm-clock: cpu 0, msr 2:1fffd001, primary cpu clock [ 0.000000] kvm-clock: using sched offset of 1257686502 cycles [ 0.000000] clocksource: kvm-clock: mask: 0xffffffffffffffff max_cycles: 0x1cd42e4dffb, max_idle_ns: 881590591483 ns [ 0.000000] Zone ranges: [ 0.000000] DMA [mem 0x0000000000001000-0x0000000000ffffff] [ 0.000000] DMA32 [mem 0x0000000001000000-0x00000000ffffffff] [ 0.000000] Normal [mem 0x0000000100000000-0x000000021fffffff] [ 0.000000] Movable zone start for each node [ 0.000000] Early memory node ranges [ 0.000000] node 0: [mem 0x0000000000001000-0x000000000009efff] [ 0.000000] node 0: [mem 0x0000000000100000-0x00000000bfffcfff] [ 0.000000] node 0: [mem 0x0000000100000000-0x000000021fffffff] [ 0.000000] Initmem setup node 0 [mem 0x0000000000001000-0x000000021fffffff] [ 0.000000] kasan: KernelAddressSanitizer initialized [ 0.000000] ACPI: PM-Timer IO Port: 0xb008 [ 0.000000] ACPI: LAPIC_NMI (acpi_id[0xff] dfl dfl lint[0x1]) [ 0.000000] IOAPIC[0]: apic_id 0, version 17, address 0xfec00000, GSI 0-23 [ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 5 global_irq 5 high level) [ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 9 global_irq 9 high level) [ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 10 global_irq 10 high level) [ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 11 global_irq 11 high level) [ 0.000000] Using ACPI (MADT) for SMP configuration information [ 0.000000] smpboot: Allowing 2 CPUs, 0 hotplug CPUs [ 0.000000] PM: Registered nosave memory: [mem 0x00000000-0x00000fff] [ 0.000000] PM: Registered nosave memory: [mem 0x0009f000-0x0009ffff] [ 0.000000] PM: Registered nosave memory: [mem 0x000a0000-0x000effff] [ 0.000000] PM: Registered nosave memory: [mem 0x000f0000-0x000fffff] [ 0.000000] PM: Registered nosave memory: [mem 0xbfffd000-0xbfffffff] [ 0.000000] PM: Registered nosave memory: [mem 0xc0000000-0xfffbbfff] [ 0.000000] PM: Registered nosave memory: [mem 0xfffbc000-0xffffffff] [ 0.000000] e820: [mem 0xc0000000-0xfffbbfff] available for PCI devices [ 0.000000] Booting paravirtualized kernel on KVM [ 0.000000] clocksource: refined-jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604462750000 ns [ 0.000000] setup_percpu: NR_CPUS:64 nr_cpumask_bits:64 nr_cpu_ids:2 nr_node_ids:1 [ 0.000000] PERCPU: Embedded 42 pages/cpu @ffff8801db200000 s132680 r8192 d31160 u1048576 [ 0.000000] Built 1 zonelists in Zone order, mobility grouping on. Total pages: 1935238 [ 0.000000] Kernel command line: BOOT_IMAGE=/vmlinuz root=/dev/sda1 console=ttyS0 earlyprintk=serial vsyscall=native rodata=n ftrace_dump_on_oops=orig_cpu oops=panic panic_on_warn=1 nmi_watchdog=panic panic=86400 workqueue.watchdog_thresh=120 [ 0.000000] PID hash table entries: 4096 (order: 3, 32768 bytes) [ 0.000000] Dentry cache hash table entries: 1048576 (order: 11, 8388608 bytes) [ 0.000000] Inode-cache hash table entries: 524288 (order: 10, 4194304 bytes) [ 0.000000] ================================================================== [ 0.000000] BUG: KASAN: stack-out-of-bounds in reserve_bootmem_region+0xdf/0x130 [ 0.000000] Write of size 8 at addr ffffea0000047ce0 by task swapper/0 [ 0.000000] [ 0.000000] CPU: 0 PID: 0 Comm: swapper Not tainted 4.4.108-g55b3b8c #7 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 70a2354981a983c9 ffffffff84207ce8 ffffffff81d02e5d [ 0.000000] ffffea0000047ce0 ffffea0000047ce0 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d20 ffffffff814fb329 ffffea0000047ce0 [ 0.000000] Call Trace: [ 0.000000] [] dump_stack+0xc1/0x124 [ 0.000000] [] print_address_description+0x189/0x260 [ 0.000000] [] kasan_report+0x285/0x370 [ 0.000000] [] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] free_all_bootmem+0xf2/0x24d [ 0.000000] [] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [] ? dmar_table_detect+0x60/0x60 [ 0.000000] [] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [] mem_init+0x13/0x74 [ 0.000000] [] start_kernel+0x31d/0x6e9 [ 0.000000] [] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [] x86_64_start_kernel+0x140/0x163 [ 0.000000] [ 0.000000] [ 0.000000] Memory state around the buggy address: [ 0.000000] ffffea0000047b80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ffffea0000047c00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] >ffffea0000047c80: 00 00 00 00 00 00 f1 f1 f1 f1 00 00 f2 f2 00 00 [ 0.000000] ^ [ 0.000000] ffffea0000047d00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ffffea0000047d80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ================================================================== [ 0.000000] Disabling lock debugging due to kernel taint [ 0.000000] Kernel panic - not syncing: panic_on_warn set ... [ 0.000000] [ 0.000000] CPU: 0 PID: 0 Comm: swapper Tainted: G B 4.4.108-g55b3b8c #7 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 70a2354981a983c9 ffffffff84207c40 ffffffff81d02e5d [ 0.000000] ffffffff83fb34b5 ffffffff84207d18 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d08 ffffffff81417caa 0000000041b58ab3 [ 0.000000] Call Trace: [ 0.000000] [] dump_stack+0xc1/0x124 [ 0.000000] [] panic+0x1aa/0x388 [ 0.000000] [] ? percpu_up_read.constprop.45+0xe1/0xe1 [ 0.000000] [] kasan_end_report+0x50/0x50 [ 0.000000] [] kasan_report+0x15c/0x370 [ 0.000000] [] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] free_all_bootmem+0xf2/0x24d [ 0.000000] [] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [] ? dmar_table_detect+0x60/0x60 [ 0.000000] [] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [] mem_init+0x13/0x74 [ 0.000000] [] start_kernel+0x31d/0x6e9 [ 0.000000] [] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [] x86_64_start_kernel+0x140/0x163 [ 0.000000] Rebooting in 86400 seconds.. [ 0.000000] ACPI MEMORY or I/O RESET_REG. SeaBIOS (version 1.8.2-20171012_061934-google) Total RAM Size = 0x00000001e0000000 = 7680 MiB CPUs found: 2 Max CPUs supported: 2 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 0x000f3050: PCHS=0/0/0 translation=lba LCHS=520/128/63 s=4194304 Booting from Hard Disk 0... early console in decompress_kernel input_data: 0x00000000039be26e input_len: 0x0000000001424e03 output: 0x0000000001000000 output_len: 0x0000000003dcea40 run_size: 0x0000000005504000 Decompressing Linux... Parsing ELF... done. Booting the kernel. [ 0.000000] Initializing cgroup subsys cpuset [ 0.000000] Initializing cgroup subsys cpu [ 0.000000] Initializing cgroup subsys cpuacct [ 0.000000] Initializing cgroup subsys schedtune [ 0.000000] Linux version 4.4.108-g55b3b8c (syzkaller@ci) (gcc version 7.1.1 20170620 (GCC) ) #7 SMP PREEMPT Fri Dec 29 21:50:38 UTC 2017 [ 0.000000] Command line: BOOT_IMAGE=/vmlinuz root=/dev/sda1 console=ttyS0 earlyprintk=serial vsyscall=native rodata=n ftrace_dump_on_oops=orig_cpu oops=panic panic_on_warn=1 nmi_watchdog=panic panic=86400 workqueue.watchdog_thresh=120 [ 0.000000] KERNEL supported cpus: [ 0.000000] Intel GenuineIntel [ 0.000000] AMD AuthenticAMD [ 0.000000] Centaur CentaurHauls [ 0.000000] x86/fpu: xstate_offset[2]: 576, xstate_sizes[2]: 256 [ 0.000000] x86/fpu: Supporting XSAVE feature 0x01: 'x87 floating point registers' [ 0.000000] x86/fpu: Supporting XSAVE feature 0x02: 'SSE registers' [ 0.000000] x86/fpu: Supporting XSAVE feature 0x04: 'AVX registers' [ 0.000000] x86/fpu: Enabled xstate features 0x7, context size is 832 bytes, using 'standard' format. [ 0.000000] x86/fpu: Using 'eager' FPU context switches. [ 0.000000] e820: BIOS-provided physical RAM map: [ 0.000000] BIOS-e820: [mem 0x0000000000000000-0x000000000009fbff] usable [ 0.000000] BIOS-e820: [mem 0x000000000009fc00-0x000000000009ffff] reserved [ 0.000000] BIOS-e820: [mem 0x00000000000f0000-0x00000000000fffff] reserved [ 0.000000] BIOS-e820: [mem 0x0000000000100000-0x00000000bfffcfff] usable [ 0.000000] BIOS-e820: [mem 0x00000000bfffd000-0x00000000bfffffff] reserved [ 0.000000] BIOS-e820: [mem 0x00000000fffbc000-0x00000000ffffffff] reserved [ 0.000000] BIOS-e820: [mem 0x0000000100000000-0x000000021fffffff] usable [ 0.000000] bootconsole [earlyser0] enabled [ 0.000000] NX (Execute Disable) protection: active [ 0.000000] SMBIOS 2.4 present. [ 0.000000] Hypervisor detected: KVM [ 0.000000] e820: last_pfn = 0x220000 max_arch_pfn = 0x400000000 [ 0.000000] x86/PAT: Configuration [0-7]: WB WC UC- UC WB WC UC- WT [ 0.000000] e820: last_pfn = 0xbfffd max_arch_pfn = 0x400000000 [ 0.000000] found SMP MP-table at [mem 0x000f32c0-0x000f32cf] mapped at [ffff8800000f32c0] [ 0.000000] Scanning 1 areas for low memory corruption [ 0.000000] Using GB pages for direct mapping [ 0.000000] ACPI: Early table checksum verification disabled [ 0.000000] ACPI: RSDP 0x00000000000F3090 000014 (v00 Google) [ 0.000000] ACPI: RSDT 0x00000000BFFFDC70 000034 (v01 Google GOOGRSDT 00000001 GOOG 00000001) [ 0.000000] ACPI: FACP 0x00000000BFFFFF00 0000F4 (v02 Google GOOGFACP 00000001 GOOG 00000001) [ 0.000000] ACPI: DSDT 0x00000000BFFFDCB0 0017B2 (v01 Google GOOGDSDT 00000001 GOOG 00000001) [ 0.000000] ACPI: FACS 0x00000000BFFFFEC0 000040 [ 0.000000] ACPI: FACS 0x00000000BFFFFEC0 000040 [ 0.000000] ACPI: SSDT 0x00000000BFFFF590 000930 (v01 Google GOOGSSDT 00000001 GOOG 00000001) [ 0.000000] ACPI: APIC 0x00000000BFFFF4A0 000076 (v01 Google GOOGAPIC 00000001 GOOG 00000001) [ 0.000000] ACPI: WAET 0x00000000BFFFF470 000028 (v01 Google GOOGWAET 00000001 GOOG 00000001) [ 0.000000] kvm-clock: Using msrs 4b564d01 and 4b564d00 [ 0.000000] kvm-clock: cpu 0, msr 2:1fffd001, primary cpu clock [ 0.000000] kvm-clock: using sched offset of 1449077795 cycles [ 0.000000] clocksource: kvm-clock: mask: 0xffffffffffffffff max_cycles: 0x1cd42e4dffb, max_idle_ns: 881590591483 ns [ 0.000000] Zone ranges: [ 0.000000] DMA [mem 0x0000000000001000-0x0000000000ffffff] [ 0.000000] DMA32 [mem 0x0000000001000000-0x00000000ffffffff] [ 0.000000] Normal [mem 0x0000000100000000-0x000000021fffffff] [ 0.000000] Movable zone start for each node [ 0.000000] Early memory node ranges [ 0.000000] node 0: [mem 0x0000000000001000-0x000000000009efff] [ 0.000000] node 0: [mem 0x0000000000100000-0x00000000bfffcfff] [ 0.000000] node 0: [mem 0x0000000100000000-0x000000021fffffff] [ 0.000000] Initmem setup node 0 [mem 0x0000000000001000-0x000000021fffffff] [ 0.000000] kasan: KernelAddressSanitizer initialized [ 0.000000] ACPI: PM-Timer IO Port: 0xb008 [ 0.000000] ACPI: LAPIC_NMI (acpi_id[0xff] dfl dfl lint[0x1]) [ 0.000000] IOAPIC[0]: apic_id 0, version 17, address 0xfec00000, GSI 0-23 [ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 5 global_irq 5 high level) [ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 9 global_irq 9 high level) [ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 10 global_irq 10 high level) [ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 11 global_irq 11 high level) [ 0.000000] Using ACPI (MADT) for SMP configuration information [ 0.000000] smpboot: Allowing 2 CPUs, 0 hotplug CPUs [ 0.000000] PM: Registered nosave memory: [mem 0x00000000-0x00000fff] [ 0.000000] PM: Registered nosave memory: [mem 0x0009f000-0x0009ffff] [ 0.000000] PM: Registered nosave memory: [mem 0x000a0000-0x000effff] [ 0.000000] PM: Registered nosave memory: [mem 0x000f0000-0x000fffff] [ 0.000000] PM: Registered nosave memory: [mem 0xbfffd000-0xbfffffff] [ 0.000000] PM: Registered nosave memory: [mem 0xc0000000-0xfffbbfff] [ 0.000000] PM: Registered nosave memory: [mem 0xfffbc000-0xffffffff] [ 0.000000] e820: [mem 0xc0000000-0xfffbbfff] available for PCI devices [ 0.000000] Booting paravirtualized kernel on KVM [ 0.000000] clocksource: refined-jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604462750000 ns [ 0.000000] setup_percpu: NR_CPUS:64 nr_cpumask_bits:64 nr_cpu_ids:2 nr_node_ids:1 [ 0.000000] PERCPU: Embedded 42 pages/cpu @ffff8801db200000 s132680 r8192 d31160 u1048576 [ 0.000000] Built 1 zonelists in Zone order, mobility grouping on. Total pages: 1935238 [ 0.000000] Kernel command line: BOOT_IMAGE=/vmlinuz root=/dev/sda1 console=ttyS0 earlyprintk=serial vsyscall=native rodata=n ftrace_dump_on_oops=orig_cpu oops=panic panic_on_warn=1 nmi_watchdog=panic panic=86400 workqueue.watchdog_thresh=120 [ 0.000000] PID hash table entries: 4096 (order: 3, 32768 bytes) [ 0.000000] Dentry cache hash table entries: 1048576 (order: 11, 8388608 bytes) [ 0.000000] Inode-cache hash table entries: 524288 (order: 10, 4194304 bytes) [ 0.000000] ================================================================== [ 0.000000] BUG: KASAN: stack-out-of-bounds in reserve_bootmem_region+0xdf/0x130 [ 0.000000] Write of size 8 at addr ffffea0000047ce0 by task swapper/0 [ 0.000000] [ 0.000000] CPU: 0 PID: 0 Comm: swapper Not tainted 4.4.108-g55b3b8c #7 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 8acc60c39bd3af43 ffffffff84207ce8 ffffffff81d02e5d [ 0.000000] ffffea0000047ce0 ffffea0000047ce0 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d20 ffffffff814fb329 ffffea0000047ce0 [ 0.000000] Call Trace: [ 0.000000] [] dump_stack+0xc1/0x124 [ 0.000000] [] print_address_description+0x189/0x260 [ 0.000000] [] kasan_report+0x285/0x370 [ 0.000000] [] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] free_all_bootmem+0xf2/0x24d [ 0.000000] [] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [] ? dmar_table_detect+0x60/0x60 [ 0.000000] [] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [] mem_init+0x13/0x74 [ 0.000000] [] start_kernel+0x31d/0x6e9 [ 0.000000] [] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [] x86_64_start_kernel+0x140/0x163 [ 0.000000] [ 0.000000] [ 0.000000] Memory state around the buggy address: [ 0.000000] ffffea0000047b80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ffffea0000047c00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] >ffffea0000047c80: 00 00 00 00 00 00 f1 f1 f1 f1 00 00 f2 f2 00 00 [ 0.000000] ^ [ 0.000000] ffffea0000047d00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ffffea0000047d80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ================================================================== [ 0.000000] Disabling lock debugging due to kernel taint [ 0.000000] Kernel panic - not syncing: panic_on_warn set ... [ 0.000000] [ 0.000000] CPU: 0 PID: 0 Comm: swapper Tainted: G B 4.4.108-g55b3b8c #7 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 8acc60c39bd3af43 ffffffff84207c40 ffffffff81d02e5d [ 0.000000] ffffffff83fb34b5 ffffffff84207d18 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d08 ffffffff81417caa 0000000041b58ab3 [ 0.000000] Call Trace: [ 0.000000] [] dump_stack+0xc1/0x124 [ 0.000000] [] panic+0x1aa/0x388 [ 0.000000] [] ? percpu_up_read.constprop.45+0xe1/0xe1 [ 0.000000] [] kasan_end_report+0x50/0x50 [ 0.000000] [] kasan_report+0x15c/0x370 [ 0.000000] [] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] free_all_bootmem+0xf2/0x24d [ 0.000000] [] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [] ? dmar_table_detect+0x60/0x60 [ 0.000000] [] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [] mem_init+0x13/0x74 [ 0.000000] [] start_kernel+0x31d/0x6e9 [ 0.000000] [] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [] x86_64_start_kernel+0x140/0x163 [ 0.000000] Rebooting in 86400 seconds.. [ 0.000000] ACPI MEMORY or I/O RESET_REG. SeaBIOS (version 1.8.2-20171012_061934-google) Total RAM Size = 0x00000001e0000000 = 7680 MiB CPUs found: 2 Max CPUs supported: 2 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 0x000f3050: PCHS=0/0/0 translation=lba LCHS=520/128/63 s=4194304 Booting from Hard Disk 0... early console in decompress_kernel input_data: 0x00000000039be26e input_len: 0x0000000001424e03 output: 0x0000000001000000 output_len: 0x0000000003dcea40 run_size: 0x0000000005504000 Decompressing Linux... Parsing ELF... done. Booting the kernel. [ 0.000000] Initializing cgroup subsys cpuset [ 0.000000] Initializing cgroup subsys cpu [ 0.000000] Initializing cgroup subsys cpuacct [ 0.000000] Initializing cgroup subsys schedtune [ 0.000000] Linux version 4.4.108-g55b3b8c (syzkaller@ci) (gcc version 7.1.1 20170620 (GCC) ) #7 SMP PREEMPT Fri Dec 29 21:50:38 UTC 2017 [ 0.000000] Command line: BOOT_IMAGE=/vmlinuz root=/dev/sda1 console=ttyS0 earlyprintk=serial vsyscall=native rodata=n ftrace_dump_on_oops=orig_cpu oops=panic panic_on_warn=1 nmi_watchdog=panic panic=86400 workqueue.watchdog_thresh=120 [ 0.000000] KERNEL supported cpus: [ 0.000000] Intel GenuineIntel [ 0.000000] AMD AuthenticAMD [ 0.000000] Centaur CentaurHauls [ 0.000000] x86/fpu: xstate_offset[2]: 576, xstate_sizes[2]: 256 [ 0.000000] x86/fpu: Supporting XSAVE feature 0x01: 'x87 floating point registers' [ 0.000000] x86/fpu: Supporting XSAVE feature 0x02: 'SSE registers' [ 0.000000] x86/fpu: Supporting XSAVE feature 0x04: 'AVX registers' [ 0.000000] x86/fpu: Enabled xstate features 0x7, context size is 832 bytes, using 'standard' format. [ 0.000000] x86/fpu: Using 'eager' FPU context switches. [ 0.000000] e820: BIOS-provided physical RAM map: [ 0.000000] BIOS-e820: [mem 0x0000000000000000-0x000000000009fbff] usable [ 0.000000] BIOS-e820: [mem 0x000000000009fc00-0x000000000009ffff] reserved [ 0.000000] BIOS-e820: [mem 0x00000000000f0000-0x00000000000fffff] reserved [ 0.000000] BIOS-e820: [mem 0x0000000000100000-0x00000000bfffcfff] usable [ 0.000000] BIOS-e820: [mem 0x00000000bfffd000-0x00000000bfffffff] reserved [ 0.000000] BIOS-e820: [mem 0x00000000fffbc000-0x00000000ffffffff] reserved [ 0.000000] BIOS-e820: [mem 0x0000000100000000-0x000000021fffffff] usable [ 0.000000] bootconsole [earlyser0] enabled [ 0.000000] NX (Execute Disable) protection: active [ 0.000000] SMBIOS 2.4 present. [ 0.000000] Hypervisor detected: KVM [ 0.000000] e820: last_pfn = 0x220000 max_arch_pfn = 0x400000000 [ 0.000000] x86/PAT: Configuration [0-7]: WB WC UC- UC WB WC UC- WT [ 0.000000] e820: last_pfn = 0xbfffd max_arch_pfn = 0x400000000 [ 0.000000] found SMP MP-table at [mem 0x000f32c0-0x000f32cf] mapped at [ffff8800000f32c0] [ 0.000000] Scanning 1 areas for low memory corruption [ 0.000000] Using GB pages for direct mapping [ 0.000000] ACPI: Early table checksum verification disabled [ 0.000000] ACPI: RSDP 0x00000000000F3090 000014 (v00 Google) [ 0.000000] ACPI: RSDT 0x00000000BFFFDC70 000034 (v01 Google GOOGRSDT 00000001 GOOG 00000001) [ 0.000000] ACPI: FACP 0x00000000BFFFFF00 0000F4 (v02 Google GOOGFACP 00000001 GOOG 00000001) [ 0.000000] ACPI: DSDT 0x00000000BFFFDCB0 0017B2 (v01 Google GOOGDSDT 00000001 GOOG 00000001) [ 0.000000] ACPI: FACS 0x00000000BFFFFEC0 000040 [ 0.000000] ACPI: FACS 0x00000000BFFFFEC0 000040 [ 0.000000] ACPI: SSDT 0x00000000BFFFF590 000930 (v01 Google GOOGSSDT 00000001 GOOG 00000001) [ 0.000000] ACPI: APIC 0x00000000BFFFF4A0 000076 (v01 Google GOOGAPIC 00000001 GOOG 00000001) [ 0.000000] ACPI: WAET 0x00000000BFFFF470 000028 (v01 Google GOOGWAET 00000001 GOOG 00000001) [ 0.000000] kvm-clock: Using msrs 4b564d01 and 4b564d00 [ 0.000000] kvm-clock: cpu 0, msr 2:1fffd001, primary cpu clock [ 0.000000] kvm-clock: using sched offset of 1274099126 cycles [ 0.000000] clocksource: kvm-clock: mask: 0xffffffffffffffff max_cycles: 0x1cd42e4dffb, max_idle_ns: 881590591483 ns [ 0.000000] Zone ranges: [ 0.000000] DMA [mem 0x0000000000001000-0x0000000000ffffff] [ 0.000000] DMA32 [mem 0x0000000001000000-0x00000000ffffffff] [ 0.000000] Normal [mem 0x0000000100000000-0x000000021fffffff] [ 0.000000] Movable zone start for each node [ 0.000000] Early memory node ranges [ 0.000000] node 0: [mem 0x0000000000001000-0x000000000009efff] [ 0.000000] node 0: [mem 0x0000000000100000-0x00000000bfffcfff] [ 0.000000] node 0: [mem 0x0000000100000000-0x000000021fffffff] [ 0.000000] Initmem setup node 0 [mem 0x0000000000001000-0x000000021fffffff] [ 0.000000] kasan: KernelAddressSanitizer initialized [ 0.000000] ACPI: PM-Timer IO Port: 0xb008 [ 0.000000] ACPI: LAPIC_NMI (acpi_id[0xff] dfl dfl lint[0x1]) [ 0.000000] IOAPIC[0]: apic_id 0, version 17, address 0xfec00000, GSI 0-23 [ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 5 global_irq 5 high level) [ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 9 global_irq 9 high level) [ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 10 global_irq 10 high level) [ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 11 global_irq 11 high level) [ 0.000000] Using ACPI (MADT) for SMP configuration information [ 0.000000] smpboot: Allowing 2 CPUs, 0 hotplug CPUs [ 0.000000] PM: Registered nosave memory: [mem 0x00000000-0x00000fff] [ 0.000000] PM: Registered nosave memory: [mem 0x0009f000-0x0009ffff] [ 0.000000] PM: Registered nosave memory: [mem 0x000a0000-0x000effff] [ 0.000000] PM: Registered nosave memory: [mem 0x000f0000-0x000fffff] [ 0.000000] PM: Registered nosave memory: [mem 0xbfffd000-0xbfffffff] [ 0.000000] PM: Registered nosave memory: [mem 0xc0000000-0xfffbbfff] [ 0.000000] PM: Registered nosave memory: [mem 0xfffbc000-0xffffffff] [ 0.000000] e820: [mem 0xc0000000-0xfffbbfff] available for PCI devices [ 0.000000] Booting paravirtualized kernel on KVM [ 0.000000] clocksource: refined-jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604462750000 ns [ 0.000000] setup_percpu: NR_CPUS:64 nr_cpumask_bits:64 nr_cpu_ids:2 nr_node_ids:1 [ 0.000000] PERCPU: Embedded 42 pages/cpu @ffff8801db200000 s132680 r8192 d31160 u1048576 [ 0.000000] Built 1 zonelists in Zone order, mobility grouping on. Total pages: 1935238 [ 0.000000] Kernel command line: BOOT_IMAGE=/vmlinuz root=/dev/sda1 console=ttyS0 earlyprintk=serial vsyscall=native rodata=n ftrace_dump_on_oops=orig_cpu oops=panic panic_on_warn=1 nmi_watchdog=panic panic=86400 workqueue.watchdog_thresh=120 [ 0.000000] PID hash table entries: 4096 (order: 3, 32768 bytes) [ 0.000000] Dentry cache hash table entries: 1048576 (order: 11, 8388608 bytes) [ 0.000000] Inode-cache hash table entries: 524288 (order: 10, 4194304 bytes) [ 0.000000] ================================================================== [ 0.000000] BUG: KASAN: stack-out-of-bounds in reserve_bootmem_region+0xdf/0x130 [ 0.000000] Write of size 8 at addr ffffea0000047ce0 by task swapper/0 [ 0.000000] [ 0.000000] CPU: 0 PID: 0 Comm: swapper Not tainted 4.4.108-g55b3b8c #7 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 72defaa483e64924 ffffffff84207ce8 ffffffff81d02e5d [ 0.000000] ffffea0000047ce0 ffffea0000047ce0 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d20 ffffffff814fb329 ffffea0000047ce0 [ 0.000000] Call Trace: [ 0.000000] [] dump_stack+0xc1/0x124 [ 0.000000] [] print_address_description+0x189/0x260 [ 0.000000] [] kasan_report+0x285/0x370 [ 0.000000] [] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] free_all_bootmem+0xf2/0x24d [ 0.000000] [] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [] ? dmar_table_detect+0x60/0x60 [ 0.000000] [] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [] mem_init+0x13/0x74 [ 0.000000] [] start_kernel+0x31d/0x6e9 [ 0.000000] [] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [] x86_64_start_kernel+0x140/0x163 [ 0.000000] [ 0.000000] [ 0.000000] Memory state around the buggy address: [ 0.000000] ffffea0000047b80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ffffea0000047c00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] >ffffea0000047c80: 00 00 00 00 00 00 f1 f1 f1 f1 00 00 f2 f2 00 00 [ 0.000000] ^ [ 0.000000] ffffea0000047d00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ffffea0000047d80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ================================================================== [ 0.000000] Disabling lock debugging due to kernel taint [ 0.000000] Kernel panic - not syncing: panic_on_warn set ... [ 0.000000] [ 0.000000] CPU: 0 PID: 0 Comm: swapper Tainted: G B 4.4.108-g55b3b8c #7 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 72defaa483e64924 ffffffff84207c40 ffffffff81d02e5d [ 0.000000] ffffffff83fb34b5 ffffffff84207d18 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d08 ffffffff81417caa 0000000041b58ab3 [ 0.000000] Call Trace: [ 0.000000] [] dump_stack+0xc1/0x124 [ 0.000000] [] panic+0x1aa/0x388 [ 0.000000] [] ? percpu_up_read.constprop.45+0xe1/0xe1 [ 0.000000] [] kasan_end_report+0x50/0x50 [ 0.000000] [] kasan_report+0x15c/0x370 [ 0.000000] [] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] free_all_bootmem+0xf2/0x24d [ 0.000000] [] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [] ? dmar_table_detect+0x60/0x60 [ 0.000000] [] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [] mem_init+0x13/0x74 [ 0.000000] [] start_kernel+0x31d/0x6e9 [ 0.000000] [] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [] x86_64_start_kernel+0x140/0x163 [ 0.000000] Rebooting in 86400 seconds.. [ 0.000000] ACPI MEMORY or I/O RESET_REG. SeaBIOS (version 1.8.2-20171012_061934-google) Total RAM Size = 0x00000001e0000000 = 7680 MiB CPUs found: 2 Max CPUs supported: 2 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 0x000f3050: PCHS=0/0/0 translation=lba LCHS=520/128/63 s=4194304 Booting from Hard Disk 0... early console in decompress_kernel input_data: 0x00000000039be26e input_len: 0x0000000001424e03 output: 0x0000000001000000 output_len: 0x0000000003dcea40 run_size: 0x0000000005504000 Decompressing Linux... Parsing ELF... done. Booting the kernel. [ 0.000000] Initializing cgroup subsys cpuset [ 0.000000] Initializing cgroup subsys cpu [ 0.000000] Initializing cgroup subsys cpuacct [ 0.000000] Initializing cgroup subsys schedtune [ 0.000000] Linux version 4.4.108-g55b3b8c (syzkaller@ci) (gcc version 7.1.1 20170620 (GCC) ) #7 SMP PREEMPT Fri Dec 29 21:50:38 UTC 2017 [ 0.000000] Command line: BOOT_IMAGE=/vmlinuz root=/dev/sda1 console=ttyS0 earlyprintk=serial vsyscall=native rodata=n ftrace_dump_on_oops=orig_cpu oops=panic panic_on_warn=1 nmi_watchdog=panic panic=86400 workqueue.watchdog_thresh=120 [ 0.000000] KERNEL supported cpus: [ 0.000000] Intel GenuineIntel [ 0.000000] AMD AuthenticAMD [ 0.000000] Centaur CentaurHauls [ 0.000000] x86/fpu: xstate_offset[2]: 576, xstate_sizes[2]: 256 [ 0.000000] x86/fpu: Supporting XSAVE feature 0x01: 'x87 floating point registers' [ 0.000000] x86/fpu: Supporting XSAVE feature 0x02: 'SSE registers' [ 0.000000] x86/fpu: Supporting XSAVE feature 0x04: 'AVX registers' [ 0.000000] x86/fpu: Enabled xstate features 0x7, context size is 832 bytes, using 'standard' format. [ 0.000000] x86/fpu: Using 'eager' FPU context switches. [ 0.000000] e820: BIOS-provided physical RAM map: [ 0.000000] BIOS-e820: [mem 0x0000000000000000-0x000000000009fbff] usable [ 0.000000] BIOS-e820: [mem 0x000000000009fc00-0x000000000009ffff] reserved [ 0.000000] BIOS-e820: [mem 0x00000000000f0000-0x00000000000fffff] reserved [ 0.000000] BIOS-e820: [mem 0x0000000000100000-0x00000000bfffcfff] usable [ 0.000000] BIOS-e820: [mem 0x00000000bfffd000-0x00000000bfffffff] reserved [ 0.000000] BIOS-e820: [mem 0x00000000fffbc000-0x00000000ffffffff] reserved [ 0.000000] BIOS-e820: [mem 0x0000000100000000-0x000000021fffffff] usable [ 0.000000] bootconsole [earlyser0] enabled [ 0.000000] NX (Execute Disable) protection: active [ 0.000000] SMBIOS 2.4 present. [ 0.000000] Hypervisor detected: KVM [ 0.000000] e820: last_pfn = 0x220000 max_arch_pfn = 0x400000000 [ 0.000000] x86/PAT: Configuration [0-7]: WB WC UC- UC WB WC UC- WT [ 0.000000] e820: last_pfn = 0xbfffd max_arch_pfn = 0x400000000 [ 0.000000] found SMP MP-table at [mem 0x000f32c0-0x000f32cf] mapped at [ffff8800000f32c0] [ 0.000000] Scanning 1 areas for low memory corruption [ 0.000000] Using GB pages for direct mapping [ 0.000000] ACPI: Early table checksum verification disabled [ 0.000000] ACPI: RSDP 0x00000000000F3090 000014 (v00 Google) [ 0.000000] ACPI: RSDT 0x00000000BFFFDC70 000034 (v01 Google GOOGRSDT 00000001 GOOG 00000001) [ 0.000000] ACPI: FACP 0x00000000BFFFFF00 0000F4 (v02 Google GOOGFACP 00000001 GOOG 00000001) [ 0.000000] ACPI: DSDT 0x00000000BFFFDCB0 0017B2 (v01 Google GOOGDSDT 00000001 GOOG 00000001) [ 0.000000] ACPI: FACS 0x00000000BFFFFEC0 000040 [ 0.000000] ACPI: FACS 0x00000000BFFFFEC0 000040 [ 0.000000] ACPI: SSDT 0x00000000BFFFF590 000930 (v01 Google GOOGSSDT 00000001 GOOG 00000001) [ 0.000000] ACPI: APIC 0x00000000BFFFF4A0 000076 (v01 Google GOOGAPIC 00000001 GOOG 00000001) [ 0.000000] ACPI: WAET 0x00000000BFFFF470 000028 (v01 Google GOOGWAET 00000001 GOOG 00000001) [ 0.000000] kvm-clock: Using msrs 4b564d01 and 4b564d00 [ 0.000000] kvm-clock: cpu 0, msr 2:1fffd001, primary cpu clock [ 0.000000] kvm-clock: using sched offset of 1395602333 cycles [ 0.000000] clocksource: kvm-clock: mask: 0xffffffffffffffff max_cycles: 0x1cd42e4dffb, max_idle_ns: 881590591483 ns [ 0.000000] Zone ranges: [ 0.000000] DMA [mem 0x0000000000001000-0x0000000000ffffff] [ 0.000000] DMA32 [mem 0x0000000001000000-0x00000000ffffffff] [ 0.000000] Normal [mem 0x0000000100000000-0x000000021fffffff] [ 0.000000] Movable zone start for each node [ 0.000000] Early memory node ranges [ 0.000000] node 0: [mem 0x0000000000001000-0x000000000009efff] [ 0.000000] node 0: [mem 0x0000000000100000-0x00000000bfffcfff] [ 0.000000] node 0: [mem 0x0000000100000000-0x000000021fffffff] [ 0.000000] Initmem setup node 0 [mem 0x0000000000001000-0x000000021fffffff] [ 0.000000] kasan: KernelAddressSanitizer initialized [ 0.000000] ACPI: PM-Timer IO Port: 0xb008 [ 0.000000] ACPI: LAPIC_NMI (acpi_id[0xff] dfl dfl lint[0x1]) [ 0.000000] IOAPIC[0]: apic_id 0, version 17, address 0xfec00000, GSI 0-23 [ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 5 global_irq 5 high level) [ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 9 global_irq 9 high level) [ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 10 global_irq 10 high level) [ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 11 global_irq 11 high level) [ 0.000000] Using ACPI (MADT) for SMP configuration information [ 0.000000] smpboot: Allowing 2 CPUs, 0 hotplug CPUs [ 0.000000] PM: Registered nosave memory: [mem 0x00000000-0x00000fff] [ 0.000000] PM: Registered nosave memory: [mem 0x0009f000-0x0009ffff] [ 0.000000] PM: Registered nosave memory: [mem 0x000a0000-0x000effff] [ 0.000000] PM: Registered nosave memory: [mem 0x000f0000-0x000fffff] [ 0.000000] PM: Registered nosave memory: [mem 0xbfffd000-0xbfffffff] [ 0.000000] PM: Registered nosave memory: [mem 0xc0000000-0xfffbbfff] [ 0.000000] PM: Registered nosave memory: [mem 0xfffbc000-0xffffffff] [ 0.000000] e820: [mem 0xc0000000-0xfffbbfff] available for PCI devices [ 0.000000] Booting paravirtualized kernel on KVM [ 0.000000] clocksource: refined-jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604462750000 ns [ 0.000000] setup_percpu: NR_CPUS:64 nr_cpumask_bits:64 nr_cpu_ids:2 nr_node_ids:1 [ 0.000000] PERCPU: Embedded 42 pages/cpu @ffff8801db200000 s132680 r8192 d31160 u1048576 [ 0.000000] Built 1 zonelists in Zone order, mobility grouping on. Total pages: 1935238 [ 0.000000] Kernel command line: BOOT_IMAGE=/vmlinuz root=/dev/sda1 console=ttyS0 earlyprintk=serial vsyscall=native rodata=n ftrace_dump_on_oops=orig_cpu oops=panic panic_on_warn=1 nmi_watchdog=panic panic=86400 workqueue.watchdog_thresh=120 [ 0.000000] PID hash table entries: 4096 (order: 3, 32768 bytes) [ 0.000000] Dentry cache hash table entries: 1048576 (order: 11, 8388608 bytes) [ 0.000000] Inode-cache hash table entries: 524288 (order: 10, 4194304 bytes) [ 0.000000] ================================================================== [ 0.000000] BUG: KASAN: stack-out-of-bounds in reserve_bootmem_region+0xdf/0x130 [ 0.000000] Write of size 8 at addr ffffea0000047ce0 by task swapper/0 [ 0.000000] [ 0.000000] CPU: 0 PID: 0 Comm: swapper Not tainted 4.4.108-g55b3b8c #7 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 839c477794a395f7 ffffffff84207ce8 ffffffff81d02e5d [ 0.000000] ffffea0000047ce0 ffffea0000047ce0 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d20 ffffffff814fb329 ffffea0000047ce0 [ 0.000000] Call Trace: [ 0.000000] [] dump_stack+0xc1/0x124 [ 0.000000] [] print_address_description+0x189/0x260 [ 0.000000] [] kasan_report+0x285/0x370 [ 0.000000] [] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] free_all_bootmem+0xf2/0x24d [ 0.000000] [] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [] ? dmar_table_detect+0x60/0x60 [ 0.000000] [] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [] mem_init+0x13/0x74 [ 0.000000] [] start_kernel+0x31d/0x6e9 [ 0.000000] [] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [] x86_64_start_kernel+0x140/0x163 [ 0.000000] [ 0.000000] [ 0.000000] Memory state around the buggy address: [ 0.000000] ffffea0000047b80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ffffea0000047c00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] >ffffea0000047c80: 00 00 00 00 00 00 f1 f1 f1 f1 00 00 f2 f2 00 00 [ 0.000000] ^ [ 0.000000] ffffea0000047d00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ffffea0000047d80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ================================================================== [ 0.000000] Disabling lock debugging due to kernel taint [ 0.000000] Kernel panic - not syncing: panic_on_warn set ... [ 0.000000] [ 0.000000] CPU: 0 PID: 0 Comm: swapper Tainted: G B 4.4.108-g55b3b8c #7 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 839c477794a395f7 ffffffff84207c40 ffffffff81d02e5d [ 0.000000] ffffffff83fb34b5 ffffffff84207d18 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d08 ffffffff81417caa 0000000041b58ab3 [ 0.000000] Call Trace: [ 0.000000] [] dump_stack+0xc1/0x124 [ 0.000000] [] panic+0x1aa/0x388 [ 0.000000] [] ? percpu_up_read.constprop.45+0xe1/0xe1 [ 0.000000] [] kasan_end_report+0x50/0x50 [ 0.000000] [] kasan_report+0x15c/0x370 [ 0.000000] [] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] free_all_bootmem+0xf2/0x24d [ 0.000000] [] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [] ? dmar_table_detect+0x60/0x60 [ 0.000000] [] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [] mem_init+0x13/0x74 [ 0.000000] [] start_kernel+0x31d/0x6e9 [ 0.000000] [] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [] x86_64_start_kernel+0x140/0x163 [ 0.000000] Rebooting in 86400 seconds.. [ 0.000000] ACPI MEMORY or I/O RESET_REG. SeaBIOS (version 1.8.2-20171012_061934-google) Total RAM Size = 0x00000001e0000000 = 7680 MiB CPUs found: 2 Max CPUs supported: 2 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 0x000f3050: PCHS=0/0/0 translation=lba LCHS=520/128/63 s=4194304 Booting from Hard Disk 0... early console in decompress_kernel input_data: 0x00000000039be26e input_len: 0x0000000001424e03 output: 0x0000000001000000 output_len: 0x0000000003dcea40 run_size: 0x0000000005504000 Decompressing Linux... Parsing ELF... done. Booting the kernel. [ 0.000000] Initializing cgroup subsys cpuset [ 0.000000] Initializing cgroup subsys cpu [ 0.000000] Initializing cgroup subsys cpuacct [ 0.000000] Initializing cgroup subsys schedtune [ 0.000000] Linux version 4.4.108-g55b3b8c (syzkaller@ci) (gcc version 7.1.1 20170620 (GCC) ) #7 SMP PREEMPT Fri Dec 29 21:50:38 UTC 2017 [ 0.000000] Command line: BOOT_IMAGE=/vmlinuz root=/dev/sda1 console=ttyS0 earlyprintk=serial vsyscall=native rodata=n ftrace_dump_on_oops=orig_cpu oops=panic panic_on_warn=1 nmi_watchdog=panic panic=86400 workqueue.watchdog_thresh=120 [ 0.000000] KERNEL supported cpus: [ 0.000000] Intel GenuineIntel [ 0.000000] AMD AuthenticAMD [ 0.000000] Centaur CentaurHauls [ 0.000000] x86/fpu: xstate_offset[2]: 576, xstate_sizes[2]: 256 [ 0.000000] x86/fpu: Supporting XSAVE feature 0x01: 'x87 floating point registers' [ 0.000000] x86/fpu: Supporting XSAVE feature 0x02: 'SSE registers' [ 0.000000] x86/fpu: Supporting XSAVE feature 0x04: 'AVX registers' [ 0.000000] x86/fpu: Enabled xstate features 0x7, context size is 832 bytes, using 'standard' format. [ 0.000000] x86/fpu: Using 'eager' FPU context switches. [ 0.000000] e820: BIOS-provided physical RAM map: [ 0.000000] BIOS-e820: [mem 0x0000000000000000-0x000000000009fbff] usable [ 0.000000] BIOS-e820: [mem 0x000000000009fc00-0x000000000009ffff] reserved [ 0.000000] BIOS-e820: [mem 0x00000000000f0000-0x00000000000fffff] reserved [ 0.000000] BIOS-e820: [mem 0x0000000000100000-0x00000000bfffcfff] usable [ 0.000000] BIOS-e820: [mem 0x00000000bfffd000-0x00000000bfffffff] reserved [ 0.000000] BIOS-e820: [mem 0x00000000fffbc000-0x00000000ffffffff] reserved [ 0.000000] BIOS-e820: [mem 0x0000000100000000-0x000000021fffffff] usable [ 0.000000] bootconsole [earlyser0] enabled [ 0.000000] NX (Execute Disable) protection: active [ 0.000000] SMBIOS 2.4 present. [ 0.000000] Hypervisor detected: KVM [ 0.000000] e820: last_pfn = 0x220000 max_arch_pfn = 0x400000000 [ 0.000000] x86/PAT: Configuration [0-7]: WB WC UC- UC WB WC UC- WT [ 0.000000] e820: last_pfn = 0xbfffd max_arch_pfn = 0x400000000 [ 0.000000] found SMP MP-table at [mem 0x000f32c0-0x000f32cf] mapped at [ffff8800000f32c0] [ 0.000000] Scanning 1 areas for low memory corruption [ 0.000000] Using GB pages for direct mapping [ 0.000000] ACPI: Early table checksum verification disabled [ 0.000000] ACPI: RSDP 0x00000000000F3090 000014 (v00 Google) [ 0.000000] ACPI: RSDT 0x00000000BFFFDC70 000034 (v01 Google GOOGRSDT 00000001 GOOG 00000001) [ 0.000000] ACPI: FACP 0x00000000BFFFFF00 0000F4 (v02 Google GOOGFACP 00000001 GOOG 00000001) [ 0.000000] ACPI: DSDT 0x00000000BFFFDCB0 0017B2 (v01 Google GOOGDSDT 00000001 GOOG 00000001) [ 0.000000] ACPI: FACS 0x00000000BFFFFEC0 000040 [ 0.000000] ACPI: FACS 0x00000000BFFFFEC0 000040 [ 0.000000] ACPI: SSDT 0x00000000BFFFF590 000930 (v01 Google GOOGSSDT 00000001 GOOG 00000001) [ 0.000000] ACPI: APIC 0x00000000BFFFF4A0 000076 (v01 Google GOOGAPIC 00000001 GOOG 00000001) [ 0.000000] ACPI: WAET 0x00000000BFFFF470 000028 (v01 Google GOOGWAET 00000001 GOOG 00000001) [ 0.000000] kvm-clock: Using msrs 4b564d01 and 4b564d00 [ 0.000000] kvm-clock: cpu 0, msr 2:1fffd001, primary cpu clock [ 0.000000] kvm-clock: using sched offset of 1297945728 cycles [ 0.000000] clocksource: kvm-clock: mask: 0xffffffffffffffff max_cycles: 0x1cd42e4dffb, max_idle_ns: 881590591483 ns [ 0.000000] Zone ranges: [ 0.000000] DMA [mem 0x0000000000001000-0x0000000000ffffff] [ 0.000000] DMA32 [mem 0x0000000001000000-0x00000000ffffffff] [ 0.000000] Normal [mem 0x0000000100000000-0x000000021fffffff] [ 0.000000] Movable zone start for each node [ 0.000000] Early memory node ranges [ 0.000000] node 0: [mem 0x0000000000001000-0x000000000009efff] [ 0.000000] node 0: [mem 0x0000000000100000-0x00000000bfffcfff] [ 0.000000] node 0: [mem 0x0000000100000000-0x000000021fffffff] [ 0.000000] Initmem setup node 0 [mem 0x0000000000001000-0x000000021fffffff] [ 0.000000] kasan: KernelAddressSanitizer initialized [ 0.000000] ACPI: PM-Timer IO Port: 0xb008 [ 0.000000] ACPI: LAPIC_NMI (acpi_id[0xff] dfl dfl lint[0x1]) [ 0.000000] IOAPIC[0]: apic_id 0, version 17, address 0xfec00000, GSI 0-23 [ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 5 global_irq 5 high level) [ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 9 global_irq 9 high level) [ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 10 global_irq 10 high level) [ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 11 global_irq 11 high level) [ 0.000000] Using ACPI (MADT) for SMP configuration information [ 0.000000] smpboot: Allowing 2 CPUs, 0 hotplug CPUs [ 0.000000] PM: Registered nosave memory: [mem 0x00000000-0x00000fff] [ 0.000000] PM: Registered nosave memory: [mem 0x0009f000-0x0009ffff] [ 0.000000] PM: Registered nosave memory: [mem 0x000a0000-0x000effff] [ 0.000000] PM: Registered nosave memory: [mem 0x000f0000-0x000fffff] [ 0.000000] PM: Registered nosave memory: [mem 0xbfffd000-0xbfffffff] [ 0.000000] PM: Registered nosave memory: [mem 0xc0000000-0xfffbbfff] [ 0.000000] PM: Registered nosave memory: [mem 0xfffbc000-0xffffffff] [ 0.000000] e820: [mem 0xc0000000-0xfffbbfff] available for PCI devices [ 0.000000] Booting paravirtualized kernel on KVM [ 0.000000] clocksource: refined-jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604462750000 ns [ 0.000000] setup_percpu: NR_CPUS:64 nr_cpumask_bits:64 nr_cpu_ids:2 nr_node_ids:1 [ 0.000000] PERCPU: Embedded 42 pages/cpu @ffff8801db200000 s132680 r8192 d31160 u1048576 [ 0.000000] Built 1 zonelists in Zone order, mobility grouping on. Total pages: 1935238 [ 0.000000] Kernel command line: BOOT_IMAGE=/vmlinuz root=/dev/sda1 console=ttyS0 earlyprintk=serial vsyscall=native rodata=n ftrace_dump_on_oops=orig_cpu oops=panic panic_on_warn=1 nmi_watchdog=panic panic=86400 workqueue.watchdog_thresh=120 [ 0.000000] PID hash table entries: 4096 (order: 3, 32768 bytes) [ 0.000000] Dentry cache hash table entries: 1048576 (order: 11, 8388608 bytes) [ 0.000000] Inode-cache hash table entries: 524288 (order: 10, 4194304 bytes) [ 0.000000] ================================================================== [ 0.000000] BUG: KASAN: stack-out-of-bounds in reserve_bootmem_region+0xdf/0x130 [ 0.000000] Write of size 8 at addr ffffea0000047ce0 by task swapper/0 [ 0.000000] [ 0.000000] CPU: 0 PID: 0 Comm: swapper Not tainted 4.4.108-g55b3b8c #7 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 76142e23871b7ca3 ffffffff84207ce8 ffffffff81d02e5d [ 0.000000] ffffea0000047ce0 ffffea0000047ce0 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d20 ffffffff814fb329 ffffea0000047ce0 [ 0.000000] Call Trace: [ 0.000000] [] dump_stack+0xc1/0x124 [ 0.000000] [] print_address_description+0x189/0x260 [ 0.000000] [] kasan_report+0x285/0x370 [ 0.000000] [] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] free_all_bootmem+0xf2/0x24d [ 0.000000] [] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [] ? dmar_table_detect+0x60/0x60 [ 0.000000] [] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [] mem_init+0x13/0x74 [ 0.000000] [] start_kernel+0x31d/0x6e9 [ 0.000000] [] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [] x86_64_start_kernel+0x140/0x163 [ 0.000000] [ 0.000000] [ 0.000000] Memory state around the buggy address: [ 0.000000] ffffea0000047b80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ffffea0000047c00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] >ffffea0000047c80: 00 00 00 00 00 00 f1 f1 f1 f1 00 00 f2 f2 00 00 [ 0.000000] ^ [ 0.000000] ffffea0000047d00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ffffea0000047d80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ================================================================== [ 0.000000] Disabling lock debugging due to kernel taint [ 0.000000] Kernel panic - not syncing: panic_on_warn set ... [ 0.000000] [ 0.000000] CPU: 0 PID: 0 Comm: swapper Tainted: G B 4.4.108-g55b3b8c #7 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 76142e23871b7ca3 ffffffff84207c40 ffffffff81d02e5d [ 0.000000] ffffffff83fb34b5 ffffffff84207d18 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d08 ffffffff81417caa 0000000041b58ab3 [ 0.000000] Call Trace: [ 0.000000] [] dump_stack+0xc1/0x124 [ 0.000000] [] panic+0x1aa/0x388 [ 0.000000] [] ? percpu_up_read.constprop.45+0xe1/0xe1 [ 0.000000] [] kasan_end_report+0x50/0x50 [ 0.000000] [] kasan_report+0x15c/0x370 [ 0.000000] [] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] free_all_bootmem+0xf2/0x24d [ 0.000000] [] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [] ? dmar_table_detect+0x60/0x60 [ 0.000000] [] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [] mem_init+0x13/0x74 [ 0.000000] [] start_kernel+0x31d/0x6e9 [ 0.000000] [] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [] x86_64_start_kernel+0x140/0x163 [ 0.000000] Rebooting in 86400 seconds.. [ 0.000000] ACPI MEMORY or I/O RESET_REG. SeaBIOS (version 1.8.2-20171012_061934-google) Total RAM Size = 0x00000001e0000000 = 7680 MiB CPUs found: 2 Max CPUs supported: 2 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 0x000f3050: PCHS=0/0/0 translation=lba LCHS=520/128/63 s=4194304 Booting from Hard Disk 0... early console in decompress_kernel input_data: 0x00000000039be26e input_len: 0x0000000001424e03 output: 0x0000000001000000 output_len: 0x0000000003dcea40 run_size: 0x0000000005504000 Decompressing Linux... Parsing ELF... done. Booting the kernel. [ 0.000000] Initializing cgroup subsys cpuset [ 0.000000] Initializing cgroup subsys cpu [ 0.000000] Initializing cgroup subsys cpuacct [ 0.000000] Initializing cgroup subsys schedtune [ 0.000000] Linux version 4.4.108-g55b3b8c (syzkaller@ci) (gcc version 7.1.1 20170620 (GCC) ) #7 SMP PREEMPT Fri Dec 29 21:50:38 UTC 2017 [ 0.000000] Command line: BOOT_IMAGE=/vmlinuz root=/dev/sda1 console=ttyS0 earlyprintk=serial vsyscall=native rodata=n ftrace_dump_on_oops=orig_cpu oops=panic panic_on_warn=1 nmi_watchdog=panic panic=86400 workqueue.watchdog_thresh=120 [ 0.000000] KERNEL supported cpus: [ 0.000000] Intel GenuineIntel [ 0.000000] AMD AuthenticAMD [ 0.000000] Centaur CentaurHauls [ 0.000000] x86/fpu: xstate_offset[2]: 576, xstate_sizes[2]: 256 [ 0.000000] x86/fpu: Supporting XSAVE feature 0x01: 'x87 floating point registers' [ 0.000000] x86/fpu: Supporting XSAVE feature 0x02: 'SSE registers' [ 0.000000] x86/fpu: Supporting XSAVE feature 0x04: 'AVX registers' [ 0.000000] x86/fpu: Enabled xstate features 0x7, context size is 832 bytes, using 'standard' format. [ 0.000000] x86/fpu: Using 'eager' FPU context switches. [ 0.000000] e820: BIOS-provided physical RAM map: [ 0.000000] BIOS-e820: [mem 0x0000000000000000-0x000000000009fbff] usable [ 0.000000] BIOS-e820: [mem 0x000000000009fc00-0x000000000009ffff] reserved [ 0.000000] BIOS-e820: [mem 0x00000000000f0000-0x00000000000fffff] reserved [ 0.000000] BIOS-e820: [mem 0x0000000000100000-0x00000000bfffcfff] usable [ 0.000000] BIOS-e820: [mem 0x00000000bfffd000-0x00000000bfffffff] reserved [ 0.000000] BIOS-e820: [mem 0x00000000fffbc000-0x00000000ffffffff] reserved [ 0.000000] BIOS-e820: [mem 0x0000000100000000-0x000000021fffffff] usable [ 0.000000] bootconsole [earlyser0] enabled [ 0.000000] NX (Execute Disable) protection: active [ 0.000000] SMBIOS 2.4 present. [ 0.000000] Hypervisor detected: KVM [ 0.000000] e820: last_pfn = 0x220000 max_arch_pfn = 0x400000000 [ 0.000000] x86/PAT: Configuration [0-7]: WB WC UC- UC WB WC UC- WT [ 0.000000] e820: last_pfn = 0xbfffd max_arch_pfn = 0x400000000 [ 0.000000] found SMP MP-table at [mem 0x000f32c0-0x000f32cf] mapped at [ffff8800000f32c0] [ 0.000000] Scanning 1 areas for low memory corruption [ 0.000000] Using GB pages for direct mapping [ 0.000000] ACPI: Early table checksum verification disabled [ 0.000000] ACPI: RSDP 0x00000000000F3090 000014 (v00 Google) [ 0.000000] ACPI: RSDT 0x00000000BFFFDC70 000034 (v01 Google GOOGRSDT 00000001 GOOG 00000001) [ 0.000000] ACPI: FACP 0x00000000BFFFFF00 0000F4 (v02 Google GOOGFACP 00000001 GOOG 00000001) [ 0.000000] ACPI: DSDT 0x00000000BFFFDCB0 0017B2 (v01 Google GOOGDSDT 00000001 GOOG 00000001) [ 0.000000] ACPI: FACS 0x00000000BFFFFEC0 000040 [ 0.000000] ACPI: FACS 0x00000000BFFFFEC0 000040 [ 0.000000] ACPI: SSDT 0x00000000BFFFF590 000930 (v01 Google GOOGSSDT 00000001 GOOG 00000001) [ 0.000000] ACPI: APIC 0x00000000BFFFF4A0 000076 (v01 Google GOOGAPIC 00000001 GOOG 00000001) [ 0.000000] ACPI: WAET 0x00000000BFFFF470 000028 (v01 Google GOOGWAET 00000001 GOOG 00000001) [ 0.000000] kvm-clock: Using msrs 4b564d01 and 4b564d00 [ 0.000000] kvm-clock: cpu 0, msr 2:1fffd001, primary cpu clock [ 0.000000] kvm-clock: using sched offset of 1301953914 cycles [ 0.000000] clocksource: kvm-clock: mask: 0xffffffffffffffff max_cycles: 0x1cd42e4dffb, max_idle_ns: 881590591483 ns [ 0.000000] Zone ranges: [ 0.000000] DMA [mem 0x0000000000001000-0x0000000000ffffff] [ 0.000000] DMA32 [mem 0x0000000001000000-0x00000000ffffffff] [ 0.000000] Normal [mem 0x0000000100000000-0x000000021fffffff] [ 0.000000] Movable zone start for each node [ 0.000000] Early memory node ranges [ 0.000000] node 0: [mem 0x0000000000001000-0x000000000009efff] [ 0.000000] node 0: [mem 0x0000000000100000-0x00000000bfffcfff] [ 0.000000] node 0: [mem 0x0000000100000000-0x000000021fffffff] [ 0.000000] Initmem setup node 0 [mem 0x0000000000001000-0x000000021fffffff] [ 0.000000] kasan: KernelAddressSanitizer initialized [ 0.000000] ACPI: PM-Timer IO Port: 0xb008 [ 0.000000] ACPI: LAPIC_NMI (acpi_id[0xff] dfl dfl lint[0x1]) [ 0.000000] IOAPIC[0]: apic_id 0, version 17, address 0xfec00000, GSI 0-23 [ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 5 global_irq 5 high level) [ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 9 global_irq 9 high level) [ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 10 global_irq 10 high level) [ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 11 global_irq 11 high level) [ 0.000000] Using ACPI (MADT) for SMP configuration information [ 0.000000] smpboot: Allowing 2 CPUs, 0 hotplug CPUs [ 0.000000] PM: Registered nosave memory: [mem 0x00000000-0x00000fff] [ 0.000000] PM: Registered nosave memory: [mem 0x0009f000-0x0009ffff] [ 0.000000] PM: Registered nosave memory: [mem 0x000a0000-0x000effff] [ 0.000000] PM: Registered nosave memory: [mem 0x000f0000-0x000fffff] [ 0.000000] PM: Registered nosave memory: [mem 0xbfffd000-0xbfffffff] [ 0.000000] PM: Registered nosave memory: [mem 0xc0000000-0xfffbbfff] [ 0.000000] PM: Registered nosave memory: [mem 0xfffbc000-0xffffffff] [ 0.000000] e820: [mem 0xc0000000-0xfffbbfff] available for PCI devices [ 0.000000] Booting paravirtualized kernel on KVM [ 0.000000] clocksource: refined-jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604462750000 ns [ 0.000000] setup_percpu: NR_CPUS:64 nr_cpumask_bits:64 nr_cpu_ids:2 nr_node_ids:1 [ 0.000000] PERCPU: Embedded 42 pages/cpu @ffff8801db200000 s132680 r8192 d31160 u1048576 [ 0.000000] Built 1 zonelists in Zone order, mobility grouping on. Total pages: 1935238 [ 0.000000] Kernel command line: BOOT_IMAGE=/vmlinuz root=/dev/sda1 console=ttyS0 earlyprintk=serial vsyscall=native rodata=n ftrace_dump_on_oops=orig_cpu oops=panic panic_on_warn=1 nmi_watchdog=panic panic=86400 workqueue.watchdog_thresh=120 [ 0.000000] PID hash table entries: 4096 (order: 3, 32768 bytes) [ 0.000000] Dentry cache hash table entries: 1048576 (order: 11, 8388608 bytes) [ 0.000000] Inode-cache hash table entries: 524288 (order: 10, 4194304 bytes) [ 0.000000] ================================================================== [ 0.000000] BUG: KASAN: stack-out-of-bounds in reserve_bootmem_region+0xdf/0x130 [ 0.000000] Write of size 8 at addr ffffea0000047ce0 by task swapper/0 [ 0.000000] [ 0.000000] CPU: 0 PID: 0 Comm: swapper Not tainted 4.4.108-g55b3b8c #7 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 76a42b4887ab79c8 ffffffff84207ce8 ffffffff81d02e5d [ 0.000000] ffffea0000047ce0 ffffea0000047ce0 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d20 ffffffff814fb329 ffffea0000047ce0 [ 0.000000] Call Trace: [ 0.000000] [] dump_stack+0xc1/0x124 [ 0.000000] [] print_address_description+0x189/0x260 [ 0.000000] [] kasan_report+0x285/0x370 [ 0.000000] [] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] free_all_bootmem+0xf2/0x24d [ 0.000000] [] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [] ? dmar_table_detect+0x60/0x60 [ 0.000000] [] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [] mem_init+0x13/0x74 [ 0.000000] [] start_kernel+0x31d/0x6e9 [ 0.000000] [] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [] x86_64_start_kernel+0x140/0x163 [ 0.000000] [ 0.000000] [ 0.000000] Memory state around the buggy address: [ 0.000000] ffffea0000047b80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ffffea0000047c00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] >ffffea0000047c80: 00 00 00 00 00 00 f1 f1 f1 f1 00 00 f2 f2 00 00 [ 0.000000] ^ [ 0.000000] ffffea0000047d00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ffffea0000047d80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ================================================================== [ 0.000000] Disabling lock debugging due to kernel taint [ 0.000000] Kernel panic - not syncing: panic_on_warn set ... [ 0.000000] [ 0.000000] CPU: 0 PID: 0 Comm: swapper Tainted: G B 4.4.108-g55b3b8c #7 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 76a42b4887ab79c8 ffffffff84207c40 ffffffff81d02e5d [ 0.000000] ffffffff83fb34b5 ffffffff84207d18 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d08 ffffffff81417caa 0000000041b58ab3 [ 0.000000] Call Trace: [ 0.000000] [] dump_stack+0xc1/0x124 [ 0.000000] [] panic+0x1aa/0x388 [ 0.000000] [] ? percpu_up_read.constprop.45+0xe1/0xe1 [ 0.000000] [] kasan_end_report+0x50/0x50 [ 0.000000] [] kasan_report+0x15c/0x370 [ 0.000000] [] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] free_all_bootmem+0xf2/0x24d [ 0.000000] [] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [] ? dmar_table_detect+0x60/0x60 [ 0.000000] [] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [] mem_init+0x13/0x74 [ 0.000000] [] start_kernel+0x31d/0x6e9 [ 0.000000] [] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [] x86_64_start_kernel+0x140/0x163 [ 0.000000] Rebooting in 86400 seconds.. [ 0.000000] ACPI MEMORY or I/O RESET_REG. SeaBIOS (version 1.8.2-20171012_061934-google) Total RAM Size = 0x00000001e0000000 = 7680 MiB CPUs found: 2 Max CPUs supported: 2 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 0x000f3050: PCHS=0/0/0 translation=lba LCHS=520/128/63 s=4194304 Booting from Hard Disk 0... early console in decompress_kernel input_data: 0x00000000039be26e input_len: 0x0000000001424e03 output: 0x0000000001000000 output_len: 0x0000000003dcea40 run_size: 0x0000000005504000 Decompressing Linux... Parsing ELF... done. Booting the kernel. [ 0.000000] Initializing cgroup subsys cpuset [ 0.000000] Initializing cgroup subsys cpu [ 0.000000] Initializing cgroup subsys cpuacct [ 0.000000] Initializing cgroup subsys schedtune [ 0.000000] Linux version 4.4.108-g55b3b8c (syzkaller@ci) (gcc version 7.1.1 20170620 (GCC) ) #7 SMP PREEMPT Fri Dec 29 21:50:38 UTC 2017 [ 0.000000] Command line: BOOT_IMAGE=/vmlinuz root=/dev/sda1 console=ttyS0 earlyprintk=serial vsyscall=native rodata=n ftrace_dump_on_oops=orig_cpu oops=panic panic_on_warn=1 nmi_watchdog=panic panic=86400 workqueue.watchdog_thresh=120 [ 0.000000] KERNEL supported cpus: [ 0.000000] Intel GenuineIntel [ 0.000000] AMD AuthenticAMD [ 0.000000] Centaur CentaurHauls [ 0.000000] x86/fpu: xstate_offset[2]: 576, xstate_sizes[2]: 256 [ 0.000000] x86/fpu: Supporting XSAVE feature 0x01: 'x87 floating point registers' [ 0.000000] x86/fpu: Supporting XSAVE feature 0x02: 'SSE registers' [ 0.000000] x86/fpu: Supporting XSAVE feature 0x04: 'AVX registers' [ 0.000000] x86/fpu: Enabled xstate features 0x7, context size is 832 bytes, using 'standard' format. [ 0.000000] x86/fpu: Using 'eager' FPU context switches. [ 0.000000] e820: BIOS-provided physical RAM map: [ 0.000000] BIOS-e820: [mem 0x0000000000000000-0x000000000009fbff] usable [ 0.000000] BIOS-e820: [mem 0x000000000009fc00-0x000000000009ffff] reserved [ 0.000000] BIOS-e820: [mem 0x00000000000f0000-0x00000000000fffff] reserved [ 0.000000] BIOS-e820: [mem 0x0000000000100000-0x00000000bfffcfff] usable [ 0.000000] BIOS-e820: [mem 0x00000000bfffd000-0x00000000bfffffff] reserved [ 0.000000] BIOS-e820: [mem 0x00000000fffbc000-0x00000000ffffffff] reserved [ 0.000000] BIOS-e820: [mem 0x0000000100000000-0x000000021fffffff] usable [ 0.000000] bootconsole [earlyser0] enabled [ 0.000000] NX (Execute Disable) protection: active [ 0.000000] SMBIOS 2.4 present. [ 0.000000] Hypervisor detected: KVM [ 0.000000] e820: last_pfn = 0x220000 max_arch_pfn = 0x400000000 [ 0.000000] x86/PAT: Configuration [0-7]: WB WC UC- UC WB WC UC- WT [ 0.000000] e820: last_pfn = 0xbfffd max_arch_pfn = 0x400000000 [ 0.000000] found SMP MP-table at [mem 0x000f32c0-0x000f32cf] mapped at [ffff8800000f32c0] [ 0.000000] Scanning 1 areas for low memory corruption [ 0.000000] Using GB pages for direct mapping [ 0.000000] ACPI: Early table checksum verification disabled [ 0.000000] ACPI: RSDP 0x00000000000F3090 000014 (v00 Google) [ 0.000000] ACPI: RSDT 0x00000000BFFFDC70 000034 (v01 Google GOOGRSDT 00000001 GOOG 00000001) [ 0.000000] ACPI: FACP 0x00000000BFFFFF00 0000F4 (v02 Google GOOGFACP 00000001 GOOG 00000001) [ 0.000000] ACPI: DSDT 0x00000000BFFFDCB0 0017B2 (v01 Google GOOGDSDT 00000001 GOOG 00000001) [ 0.000000] ACPI: FACS 0x00000000BFFFFEC0 000040 [ 0.000000] ACPI: FACS 0x00000000BFFFFEC0 000040 [ 0.000000] ACPI: SSDT 0x00000000BFFFF590 000930 (v01 Google GOOGSSDT 00000001 GOOG 00000001) [ 0.000000] ACPI: APIC 0x00000000BFFFF4A0 000076 (v01 Google GOOGAPIC 00000001 GOOG 00000001) [ 0.000000] ACPI: WAET 0x00000000BFFFF470 000028 (v01 Google GOOGWAET 00000001 GOOG 00000001) [ 0.000000] kvm-clock: Using msrs 4b564d01 and 4b564d00 [ 0.000000] kvm-clock: cpu 0, msr 2:1fffd001, primary cpu clock [ 0.000000] kvm-clock: using sched offset of 1287625116 cycles [ 0.000000] clocksource: kvm-clock: mask: 0xffffffffffffffff max_cycles: 0x1cd42e4dffb, max_idle_ns: 881590591483 ns [ 0.000000] Zone ranges: [ 0.000000] DMA [mem 0x0000000000001000-0x0000000000ffffff] [ 0.000000] DMA32 [mem 0x0000000001000000-0x00000000ffffffff] [ 0.000000] Normal [mem 0x0000000100000000-0x000000021fffffff] [ 0.000000] Movable zone start for each node [ 0.000000] Early memory node ranges [ 0.000000] node 0: [mem 0x0000000000001000-0x000000000009efff] [ 0.000000] node 0: [mem 0x0000000000100000-0x00000000bfffcfff] [ 0.000000] node 0: [mem 0x0000000100000000-0x000000021fffffff] [ 0.000000] Initmem setup node 0 [mem 0x0000000000001000-0x000000021fffffff] [ 0.000000] kasan: KernelAddressSanitizer initialized [ 0.000000] ACPI: PM-Timer IO Port: 0xb008 [ 0.000000] ACPI: LAPIC_NMI (acpi_id[0xff] dfl dfl lint[0x1]) [ 0.000000] IOAPIC[0]: apic_id 0, version 17, address 0xfec00000, GSI 0-23 [ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 5 global_irq 5 high level) [ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 9 global_irq 9 high level) [ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 10 global_irq 10 high level) [ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 11 global_irq 11 high level) [ 0.000000] Using ACPI (MADT) for SMP configuration information [ 0.000000] smpboot: Allowing 2 CPUs, 0 hotplug CPUs [ 0.000000] PM: Registered nosave memory: [mem 0x00000000-0x00000fff] [ 0.000000] PM: Registered nosave memory: [mem 0x0009f000-0x0009ffff] [ 0.000000] PM: Registered nosave memory: [mem 0x000a0000-0x000effff] [ 0.000000] PM: Registered nosave memory: [mem 0x000f0000-0x000fffff] [ 0.000000] PM: Registered nosave memory: [mem 0xbfffd000-0xbfffffff] [ 0.000000] PM: Registered nosave memory: [mem 0xc0000000-0xfffbbfff] [ 0.000000] PM: Registered nosave memory: [mem 0xfffbc000-0xffffffff] [ 0.000000] e820: [mem 0xc0000000-0xfffbbfff] available for PCI devices [ 0.000000] Booting paravirtualized kernel on KVM [ 0.000000] clocksource: refined-jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604462750000 ns [ 0.000000] setup_percpu: NR_CPUS:64 nr_cpumask_bits:64 nr_cpu_ids:2 nr_node_ids:1 [ 0.000000] PERCPU: Embedded 42 pages/cpu @ffff8801db200000 s132680 r8192 d31160 u1048576 [ 0.000000] Built 1 zonelists in Zone order, mobility grouping on. Total pages: 1935238 [ 0.000000] Kernel command line: BOOT_IMAGE=/vmlinuz root=/dev/sda1 console=ttyS0 earlyprintk=serial vsyscall=native rodata=n ftrace_dump_on_oops=orig_cpu oops=panic panic_on_warn=1 nmi_watchdog=panic panic=86400 workqueue.watchdog_thresh=120 [ 0.000000] PID hash table entries: 4096 (order: 3, 32768 bytes) [ 0.000000] Dentry cache hash table entries: 1048576 (order: 11, 8388608 bytes) [ 0.000000] Inode-cache hash table entries: 524288 (order: 10, 4194304 bytes) [ 0.000000] ================================================================== [ 0.000000] BUG: KASAN: stack-out-of-bounds in reserve_bootmem_region+0xdf/0x130 [ 0.000000] Write of size 8 at addr ffffea0000047ce0 by task swapper/0 [ 0.000000] [ 0.000000] CPU: 0 PID: 0 Comm: swapper Not tainted 4.4.108-g55b3b8c #7 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 74e2f39e85ea421e ffffffff84207ce8 ffffffff81d02e5d [ 0.000000] ffffea0000047ce0 ffffea0000047ce0 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d20 ffffffff814fb329 ffffea0000047ce0 [ 0.000000] Call Trace: [ 0.000000] [] dump_stack+0xc1/0x124 [ 0.000000] [] print_address_description+0x189/0x260 [ 0.000000] [] kasan_report+0x285/0x370 [ 0.000000] [] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] free_all_bootmem+0xf2/0x24d [ 0.000000] [] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [] ? dmar_table_detect+0x60/0x60 [ 0.000000] [] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [] mem_init+0x13/0x74 [ 0.000000] [] start_kernel+0x31d/0x6e9 [ 0.000000] [] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [] x86_64_start_kernel+0x140/0x163 [ 0.000000] [ 0.000000] [ 0.000000] Memory state around the buggy address: [ 0.000000] ffffea0000047b80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ffffea0000047c00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] >ffffea0000047c80: 00 00 00 00 00 00 f1 f1 f1 f1 00 00 f2 f2 00 00 [ 0.000000] ^ [ 0.000000] ffffea0000047d00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ffffea0000047d80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ================================================================== [ 0.000000] Disabling lock debugging due to kernel taint [ 0.000000] Kernel panic - not syncing: panic_on_warn set ... [ 0.000000] [ 0.000000] CPU: 0 PID: 0 Comm: swapper Tainted: G B 4.4.108-g55b3b8c #7 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 74e2f39e85ea421e ffffffff84207c40 ffffffff81d02e5d [ 0.000000] ffffffff83fb34b5 ffffffff84207d18 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d08 ffffffff81417caa 0000000041b58ab3 [ 0.000000] Call Trace: [ 0.000000] [] dump_stack+0xc1/0x124 [ 0.000000] [] panic+0x1aa/0x388 [ 0.000000] [] ? percpu_up_read.constprop.45+0xe1/0xe1 [ 0.000000] [] kasan_end_report+0x50/0x50 [ 0.000000] [] kasan_report+0x15c/0x370 [ 0.000000] [] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] free_all_bootmem+0xf2/0x24d [ 0.000000] [] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [] ? dmar_table_detect+0x60/0x60 [ 0.000000] [] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [] mem_init+0x13/0x74 [ 0.000000] [] start_kernel+0x31d/0x6e9 [ 0.000000] [] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [] x86_64_start_kernel+0x140/0x163 [ 0.000000] Rebooting in 86400 seconds.. [ 0.000000] ACPI MEMORY or I/O RESET_REG. SeaBIOS (version 1.8.2-20171012_061934-google) Total RAM Size = 0x00000001e0000000 = 7680 MiB CPUs found: 2 Max CPUs supported: 2 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 0x000f3050: PCHS=0/0/0 translation=lba LCHS=520/128/63 s=4194304 Booting from Hard Disk 0... early console in decompress_kernel input_data: 0x00000000039be26e input_len: 0x0000000001424e03 output: 0x0000000001000000 output_len: 0x0000000003dcea40 run_size: 0x0000000005504000 Decompressing Linux... Parsing ELF... done. Booting the kernel. [ 0.000000] Initializing cgroup subsys cpuset [ 0.000000] Initializing cgroup subsys cpu [ 0.000000] Initializing cgroup subsys cpuacct [ 0.000000] Initializing cgroup subsys schedtune [ 0.000000] Linux version 4.4.108-g55b3b8c (syzkaller@ci) (gcc version 7.1.1 20170620 (GCC) ) #7 SMP PREEMPT Fri Dec 29 21:50:38 UTC 2017 [ 0.000000] Command line: BOOT_IMAGE=/vmlinuz root=/dev/sda1 console=ttyS0 earlyprintk=serial vsyscall=native rodata=n ftrace_dump_on_oops=orig_cpu oops=panic panic_on_warn=1 nmi_watchdog=panic panic=86400 workqueue.watchdog_thresh=120 [ 0.000000] KERNEL supported cpus: [ 0.000000] Intel GenuineIntel [ 0.000000] AMD AuthenticAMD [ 0.000000] Centaur CentaurHauls [ 0.000000] x86/fpu: xstate_offset[2]: 576, xstate_sizes[2]: 256 [ 0.000000] x86/fpu: Supporting XSAVE feature 0x01: 'x87 floating point registers' [ 0.000000] x86/fpu: Supporting XSAVE feature 0x02: 'SSE registers' [ 0.000000] x86/fpu: Supporting XSAVE feature 0x04: 'AVX registers' [ 0.000000] x86/fpu: Enabled xstate features 0x7, context size is 832 bytes, using 'standard' format. [ 0.000000] x86/fpu: Using 'eager' FPU context switches. [ 0.000000] e820: BIOS-provided physical RAM map: [ 0.000000] BIOS-e820: [mem 0x0000000000000000-0x000000000009fbff] usable [ 0.000000] BIOS-e820: [mem 0x000000000009fc00-0x000000000009ffff] reserved [ 0.000000] BIOS-e820: [mem 0x00000000000f0000-0x00000000000fffff] reserved [ 0.000000] BIOS-e820: [mem 0x0000000000100000-0x00000000bfffcfff] usable [ 0.000000] BIOS-e820: [mem 0x00000000bfffd000-0x00000000bfffffff] reserved [ 0.000000] BIOS-e820: [mem 0x00000000fffbc000-0x00000000ffffffff] reserved [ 0.000000] BIOS-e820: [mem 0x0000000100000000-0x000000021fffffff] usable [ 0.000000] bootconsole [earlyser0] enabled [ 0.000000] NX (Execute Disable) protection: active [ 0.000000] SMBIOS 2.4 present. [ 0.000000] Hypervisor detected: KVM [ 0.000000] e820: last_pfn = 0x220000 max_arch_pfn = 0x400000000 [ 0.000000] x86/PAT: Configuration [0-7]: WB WC UC- UC WB WC UC- WT [ 0.000000] e820: last_pfn = 0xbfffd max_arch_pfn = 0x400000000 [ 0.000000] found SMP MP-table at [mem 0x000f32c0-0x000f32cf] mapped at [ffff8800000f32c0] [ 0.000000] Scanning 1 areas for low memory corruption [ 0.000000] Using GB pages for direct mapping [ 0.000000] ACPI: Early table checksum verification disabled [ 0.000000] ACPI: RSDP 0x00000000000F3090 000014 (v00 Google) [ 0.000000] ACPI: RSDT 0x00000000BFFFDC70 000034 (v01 Google GOOGRSDT 00000001 GOOG 00000001) [ 0.000000] ACPI: FACP 0x00000000BFFFFF00 0000F4 (v02 Google GOOGFACP 00000001 GOOG 00000001) [ 0.000000] ACPI: DSDT 0x00000000BFFFDCB0 0017B2 (v01 Google GOOGDSDT 00000001 GOOG 00000001) [ 0.000000] ACPI: FACS 0x00000000BFFFFEC0 000040 [ 0.000000] ACPI: FACS 0x00000000BFFFFEC0 000040 [ 0.000000] ACPI: SSDT 0x00000000BFFFF590 000930 (v01 Google GOOGSSDT 00000001 GOOG 00000001) [ 0.000000] ACPI: APIC 0x00000000BFFFF4A0 000076 (v01 Google GOOGAPIC 00000001 GOOG 00000001) [ 0.000000] ACPI: WAET 0x00000000BFFFF470 000028 (v01 Google GOOGWAET 00000001 GOOG 00000001) [ 0.000000] kvm-clock: Using msrs 4b564d01 and 4b564d00 [ 0.000000] kvm-clock: cpu 0, msr 2:1fffd001, primary cpu clock [ 0.000000] kvm-clock: using sched offset of 1336512216 cycles [ 0.000000] clocksource: kvm-clock: mask: 0xffffffffffffffff max_cycles: 0x1cd42e4dffb, max_idle_ns: 881590591483 ns [ 0.000000] Zone ranges: [ 0.000000] DMA [mem 0x0000000000001000-0x0000000000ffffff] [ 0.000000] DMA32 [mem 0x0000000001000000-0x00000000ffffffff] [ 0.000000] Normal [mem 0x0000000100000000-0x000000021fffffff] [ 0.000000] Movable zone start for each node [ 0.000000] Early memory node ranges [ 0.000000] node 0: [mem 0x0000000000001000-0x000000000009efff] [ 0.000000] node 0: [mem 0x0000000000100000-0x00000000bfffcfff] [ 0.000000] node 0: [mem 0x0000000100000000-0x000000021fffffff] [ 0.000000] Initmem setup node 0 [mem 0x0000000000001000-0x000000021fffffff] [ 0.000000] kasan: KernelAddressSanitizer initialized [ 0.000000] ACPI: PM-Timer IO Port: 0xb008 [ 0.000000] ACPI: LAPIC_NMI (acpi_id[0xff] dfl dfl lint[0x1]) [ 0.000000] IOAPIC[0]: apic_id 0, version 17, address 0xfec00000, GSI 0-23 [ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 5 global_irq 5 high level) [ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 9 global_irq 9 high level) [ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 10 global_irq 10 high level) [ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 11 global_irq 11 high level) [ 0.000000] Using ACPI (MADT) for SMP configuration information [ 0.000000] smpboot: Allowing 2 CPUs, 0 hotplug CPUs [ 0.000000] PM: Registered nosave memory: [mem 0x00000000-0x00000fff] [ 0.000000] PM: Registered nosave memory: [mem 0x0009f000-0x0009ffff] [ 0.000000] PM: Registered nosave memory: [mem 0x000a0000-0x000effff] [ 0.000000] PM: Registered nosave memory: [mem 0x000f0000-0x000fffff] [ 0.000000] PM: Registered nosave memory: [mem 0xbfffd000-0xbfffffff] [ 0.000000] PM: Registered nosave memory: [mem 0xc0000000-0xfffbbfff] [ 0.000000] PM: Registered nosave memory: [mem 0xfffbc000-0xffffffff] [ 0.000000] e820: [mem 0xc0000000-0xfffbbfff] available for PCI devices [ 0.000000] Booting paravirtualized kernel on KVM [ 0.000000] clocksource: refined-jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604462750000 ns [ 0.000000] setup_percpu: NR_CPUS:64 nr_cpumask_bits:64 nr_cpu_ids:2 nr_node_ids:1 [ 0.000000] PERCPU: Embedded 42 pages/cpu @ffff8801db200000 s132680 r8192 d31160 u1048576 [ 0.000000] Built 1 zonelists in Zone order, mobility grouping on. Total pages: 1935238 [ 0.000000] Kernel command line: BOOT_IMAGE=/vmlinuz root=/dev/sda1 console=ttyS0 earlyprintk=serial vsyscall=native rodata=n ftrace_dump_on_oops=orig_cpu oops=panic panic_on_warn=1 nmi_watchdog=panic panic=86400 workqueue.watchdog_thresh=120 [ 0.000000] PID hash table entries: 4096 (order: 3, 32768 bytes) [ 0.000000] Dentry cache hash table entries: 1048576 (order: 11, 8388608 bytes) [ 0.000000] Inode-cache hash table entries: 524288 (order: 10, 4194304 bytes) [ 0.000000] ================================================================== [ 0.000000] BUG: KASAN: stack-out-of-bounds in reserve_bootmem_region+0xdf/0x130 [ 0.000000] Write of size 8 at addr ffffea0000047ce0 by task swapper/0 [ 0.000000] [ 0.000000] CPU: 0 PID: 0 Comm: swapper Not tainted 4.4.108-g55b3b8c #7 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 7b7561b08c7cb030 ffffffff84207ce8 ffffffff81d02e5d [ 0.000000] ffffea0000047ce0 ffffea0000047ce0 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d20 ffffffff814fb329 ffffea0000047ce0 [ 0.000000] Call Trace: [ 0.000000] [] dump_stack+0xc1/0x124 [ 0.000000] [] print_address_description+0x189/0x260 [ 0.000000] [] kasan_report+0x285/0x370 [ 0.000000] [] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] free_all_bootmem+0xf2/0x24d [ 0.000000] [] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [] ? dmar_table_detect+0x60/0x60 [ 0.000000] [] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [] mem_init+0x13/0x74 [ 0.000000] [] start_kernel+0x31d/0x6e9 [ 0.000000] [] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [] x86_64_start_kernel+0x140/0x163 [ 0.000000] [ 0.000000] [ 0.000000] Memory state around the buggy address: [ 0.000000] ffffea0000047b80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ffffea0000047c00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] >ffffea0000047c80: 00 00 00 00 00 00 f1 f1 f1 f1 00 00 f2 f2 00 00 [ 0.000000] ^ [ 0.000000] ffffea0000047d00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ffffea0000047d80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ================================================================== [ 0.000000] Disabling lock debugging due to kernel taint [ 0.000000] Kernel panic - not syncing: panic_on_warn set ... [ 0.000000] [ 0.000000] CPU: 0 PID: 0 Comm: swapper Tainted: G B 4.4.108-g55b3b8c #7 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 7b7561b08c7cb030 ffffffff84207c40 ffffffff81d02e5d [ 0.000000] ffffffff83fb34b5 ffffffff84207d18 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d08 ffffffff81417caa 0000000041b58ab3 [ 0.000000] Call Trace: [ 0.000000] [] dump_stack+0xc1/0x124 [ 0.000000] [] panic+0x1aa/0x388 [ 0.000000] [] ? percpu_up_read.constprop.45+0xe1/0xe1 [ 0.000000] [] kasan_end_report+0x50/0x50 [ 0.000000] [] kasan_report+0x15c/0x370 [ 0.000000] [] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] free_all_bootmem+0xf2/0x24d [ 0.000000] [] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [] ? dmar_table_detect+0x60/0x60 [ 0.000000] [] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [] mem_init+0x13/0x74 [ 0.000000] [] start_kernel+0x31d/0x6e9 [ 0.000000] [] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [] x86_64_start_kernel+0x140/0x163 [ 0.000000] Rebooting in 86400 seconds.. [ 0.000000] ACPI MEMORY or I/O RESET_REG. SeaBIOS (version 1.8.2-20171012_061934-google) Total RAM Size = 0x00000001e0000000 = 7680 MiB CPUs found: 2 Max CPUs supported: 2 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 0x000f3050: PCHS=0/0/0 translation=lba LCHS=520/128/63 s=4194304 Booting from Hard Disk 0... early console in decompress_kernel input_data: 0x00000000039be26e input_len: 0x0000000001424e03 output: 0x0000000001000000 output_len: 0x0000000003dcea40 run_size: 0x0000000005504000 Decompressing Linux... Parsing ELF... done. Booting the kernel. [ 0.000000] Initializing cgroup subsys cpuset [ 0.000000] Initializing cgroup subsys cpu [ 0.000000] Initializing cgroup subsys cpuacct [ 0.000000] Initializing cgroup subsys schedtune [ 0.000000] Linux version 4.4.108-g55b3b8c (syzkaller@ci) (gcc version 7.1.1 20170620 (GCC) ) #7 SMP PREEMPT Fri Dec 29 21:50:38 UTC 2017 [ 0.000000] Command line: BOOT_IMAGE=/vmlinuz root=/dev/sda1 console=ttyS0 earlyprintk=serial vsyscall=native rodata=n ftrace_dump_on_oops=orig_cpu oops=panic panic_on_warn=1 nmi_watchdog=panic panic=86400 workqueue.watchdog_thresh=120 [ 0.000000] KERNEL supported cpus: [ 0.000000] Intel GenuineIntel [ 0.000000] AMD AuthenticAMD [ 0.000000] Centaur CentaurHauls [ 0.000000] x86/fpu: xstate_offset[2]: 576, xstate_sizes[2]: 256 [ 0.000000] x86/fpu: Supporting XSAVE feature 0x01: 'x87 floating point registers' [ 0.000000] x86/fpu: Supporting XSAVE feature 0x02: 'SSE registers' [ 0.000000] x86/fpu: Supporting XSAVE feature 0x04: 'AVX registers' [ 0.000000] x86/fpu: Enabled xstate features 0x7, context size is 832 bytes, using 'standard' format. [ 0.000000] x86/fpu: Using 'eager' FPU context switches. [ 0.000000] e820: BIOS-provided physical RAM map: [ 0.000000] BIOS-e820: [mem 0x0000000000000000-0x000000000009fbff] usable [ 0.000000] BIOS-e820: [mem 0x000000000009fc00-0x000000000009ffff] reserved [ 0.000000] BIOS-e820: [mem 0x00000000000f0000-0x00000000000fffff] reserved [ 0.000000] BIOS-e820: [mem 0x0000000000100000-0x00000000bfffcfff] usable [ 0.000000] BIOS-e820: [mem 0x00000000bfffd000-0x00000000bfffffff] reserved [ 0.000000] BIOS-e820: [mem 0x00000000fffbc000-0x00000000ffffffff] reserved [ 0.000000] BIOS-e820: [mem 0x0000000100000000-0x000000021fffffff] usable [ 0.000000] bootconsole [earlyser0] enabled [ 0.000000] NX (Execute Disable) protection: active [ 0.000000] SMBIOS 2.4 present. [ 0.000000] Hypervisor detected: KVM [ 0.000000] e820: last_pfn = 0x220000 max_arch_pfn = 0x400000000 [ 0.000000] x86/PAT: Configuration [0-7]: WB WC UC- UC WB WC UC- WT [ 0.000000] e820: last_pfn = 0xbfffd max_arch_pfn = 0x400000000 [ 0.000000] found SMP MP-table at [mem 0x000f32c0-0x000f32cf] mapped at [ffff8800000f32c0] [ 0.000000] Scanning 1 areas for low memory corruption [ 0.000000] Using GB pages for direct mapping [ 0.000000] ACPI: Early table checksum verification disabled [ 0.000000] ACPI: RSDP 0x00000000000F3090 000014 (v00 Google) [ 0.000000] ACPI: RSDT 0x00000000BFFFDC70 000034 (v01 Google GOOGRSDT 00000001 GOOG 00000001) [ 0.000000] ACPI: FACP 0x00000000BFFFFF00 0000F4 (v02 Google GOOGFACP 00000001 GOOG 00000001) [ 0.000000] ACPI: DSDT 0x00000000BFFFDCB0 0017B2 (v01 Google GOOGDSDT 00000001 GOOG 00000001) [ 0.000000] ACPI: FACS 0x00000000BFFFFEC0 000040 [ 0.000000] ACPI: FACS 0x00000000BFFFFEC0 000040 [ 0.000000] ACPI: SSDT 0x00000000BFFFF590 000930 (v01 Google GOOGSSDT 00000001 GOOG 00000001) [ 0.000000] ACPI: APIC 0x00000000BFFFF4A0 000076 (v01 Google GOOGAPIC 00000001 GOOG 00000001) [ 0.000000] ACPI: WAET 0x00000000BFFFF470 000028 (v01 Google GOOGWAET 00000001 GOOG 00000001) [ 0.000000] kvm-clock: Using msrs 4b564d01 and 4b564d00 [ 0.000000] kvm-clock: cpu 0, msr 2:1fffd001, primary cpu clock [ 0.000000] kvm-clock: using sched offset of 1162850152 cycles [ 0.000000] clocksource: kvm-clock: mask: 0xffffffffffffffff max_cycles: 0x1cd42e4dffb, max_idle_ns: 881590591483 ns [ 0.000000] Zone ranges: [ 0.000000] DMA [mem 0x0000000000001000-0x0000000000ffffff] [ 0.000000] DMA32 [mem 0x0000000001000000-0x00000000ffffffff] [ 0.000000] Normal [mem 0x0000000100000000-0x000000021fffffff] [ 0.000000] Movable zone start for each node [ 0.000000] Early memory node ranges [ 0.000000] node 0: [mem 0x0000000000001000-0x000000000009efff] [ 0.000000] node 0: [mem 0x0000000000100000-0x00000000bfffcfff] [ 0.000000] node 0: [mem 0x0000000100000000-0x000000021fffffff] [ 0.000000] Initmem setup node 0 [mem 0x0000000000001000-0x000000021fffffff] [ 0.000000] kasan: KernelAddressSanitizer initialized [ 0.000000] ACPI: PM-Timer IO Port: 0xb008 [ 0.000000] ACPI: LAPIC_NMI (acpi_id[0xff] dfl dfl lint[0x1]) [ 0.000000] IOAPIC[0]: apic_id 0, version 17, address 0xfec00000, GSI 0-23 [ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 5 global_irq 5 high level) [ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 9 global_irq 9 high level) [ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 10 global_irq 10 high level) [ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 11 global_irq 11 high level) [ 0.000000] Using ACPI (MADT) for SMP configuration information [ 0.000000] smpboot: Allowing 2 CPUs, 0 hotplug CPUs [ 0.000000] PM: Registered nosave memory: [mem 0x00000000-0x00000fff] [ 0.000000] PM: Registered nosave memory: [mem 0x0009f000-0x0009ffff] [ 0.000000] PM: Registered nosave memory: [mem 0x000a0000-0x000effff] [ 0.000000] PM: Registered nosave memory: [mem 0x000f0000-0x000fffff] [ 0.000000] PM: Registered nosave memory: [mem 0xbfffd000-0xbfffffff] [ 0.000000] PM: Registered nosave memory: [mem 0xc0000000-0xfffbbfff] [ 0.000000] PM: Registered nosave memory: [mem 0xfffbc000-0xffffffff] [ 0.000000] e820: [mem 0xc0000000-0xfffbbfff] available for PCI devices [ 0.000000] Booting paravirtualized kernel on KVM [ 0.000000] clocksource: refined-jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604462750000 ns [ 0.000000] setup_percpu: NR_CPUS:64 nr_cpumask_bits:64 nr_cpu_ids:2 nr_node_ids:1 [ 0.000000] PERCPU: Embedded 42 pages/cpu @ffff8801db200000 s132680 r8192 d31160 u1048576 [ 0.000000] Built 1 zonelists in Zone order, mobility grouping on. Total pages: 1935238 [ 0.000000] Kernel command line: BOOT_IMAGE=/vmlinuz root=/dev/sda1 console=ttyS0 earlyprintk=serial vsyscall=native rodata=n ftrace_dump_on_oops=orig_cpu oops=panic panic_on_warn=1 nmi_watchdog=panic panic=86400 workqueue.watchdog_thresh=120 [ 0.000000] PID hash table entries: 4096 (order: 3, 32768 bytes) [ 0.000000] Dentry cache hash table entries: 1048576 (order: 11, 8388608 bytes) [ 0.000000] Inode-cache hash table entries: 524288 (order: 10, 4194304 bytes) [ 0.000000] ================================================================== [ 0.000000] BUG: KASAN: stack-out-of-bounds in reserve_bootmem_region+0xdf/0x130 [ 0.000000] Write of size 8 at addr ffffea0000047ce0 by task swapper/0 [ 0.000000] [ 0.000000] CPU: 0 PID: 0 Comm: swapper Not tainted 4.4.108-g55b3b8c #7 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 63b7c73374bf15b3 ffffffff84207ce8 ffffffff81d02e5d [ 0.000000] ffffea0000047ce0 ffffea0000047ce0 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d20 ffffffff814fb329 ffffea0000047ce0 [ 0.000000] Call Trace: [ 0.000000] [] dump_stack+0xc1/0x124 [ 0.000000] [] print_address_description+0x189/0x260 [ 0.000000] [] kasan_report+0x285/0x370 [ 0.000000] [] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] free_all_bootmem+0xf2/0x24d [ 0.000000] [] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [] ? dmar_table_detect+0x60/0x60 [ 0.000000] [] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [] mem_init+0x13/0x74 [ 0.000000] [] start_kernel+0x31d/0x6e9 [ 0.000000] [] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [] x86_64_start_kernel+0x140/0x163 [ 0.000000] [ 0.000000] [ 0.000000] Memory state around the buggy address: [ 0.000000] ffffea0000047b80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ffffea0000047c00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] >ffffea0000047c80: 00 00 00 00 00 00 f1 f1 f1 f1 00 00 f2 f2 00 00 [ 0.000000] ^ [ 0.000000] ffffea0000047d00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ffffea0000047d80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ================================================================== [ 0.000000] Disabling lock debugging due to kernel taint [ 0.000000] Kernel panic - not syncing: panic_on_warn set ... [ 0.000000] [ 0.000000] CPU: 0 PID: 0 Comm: swapper Tainted: G B 4.4.108-g55b3b8c #7 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 63b7c73374bf15b3 ffffffff84207c40 ffffffff81d02e5d [ 0.000000] ffffffff83fb34b5 ffffffff84207d18 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d08 ffffffff81417caa 0000000041b58ab3 [ 0.000000] Call Trace: [ 0.000000] [] dump_stack+0xc1/0x124 [ 0.000000] [] panic+0x1aa/0x388 [ 0.000000] [] ? percpu_up_read.constprop.45+0xe1/0xe1 [ 0.000000] [] kasan_end_report+0x50/0x50 [ 0.000000] [] kasan_report+0x15c/0x370 [ 0.000000] [] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] free_all_bootmem+0xf2/0x24d [ 0.000000] [] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [] ? dmar_table_detect+0x60/0x60 [ 0.000000] [] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [] mem_init+0x13/0x74 [ 0.000000] [] start_kernel+0x31d/0x6e9 [ 0.000000] [] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [] x86_64_start_kernel+0x140/0x163 [ 0.000000] Rebooting in 86400 seconds.. [ 0.000000] ACPI MEMORY or I/O RESET_REG. SeaBIOS (version 1.8.2-20171012_061934-google) Total RAM Size = 0x00000001e0000000 = 7680 MiB CPUs found: 2 Max CPUs supported: 2 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 0x000f3050: PCHS=0/0/0 translation=lba LCHS=520/128/63 s=4194304 Booting from Hard Disk 0... early console in decompress_kernel input_data: 0x00000000039be26e input_len: 0x0000000001424e03 output: 0x0000000001000000 output_len: 0x0000000003dcea40 run_size: 0x0000000005504000 Decompressing Linux... Parsing ELF... done. Booting the kernel. [ 0.000000] Initializing cgroup subsys cpuset [ 0.000000] Initializing cgroup subsys cpu [ 0.000000] Initializing cgroup subsys cpuacct [ 0.000000] Initializing cgroup subsys schedtune [ 0.000000] Linux version 4.4.108-g55b3b8c (syzkaller@ci) (gcc version 7.1.1 20170620 (GCC) ) #7 SMP PREEMPT Fri Dec 29 21:50:38 UTC 2017 [ 0.000000] Command line: BOOT_IMAGE=/vmlinuz root=/dev/sda1 console=ttyS0 earlyprintk=serial vsyscall=native rodata=n ftrace_dump_on_oops=orig_cpu oops=panic panic_on_warn=1 nmi_watchdog=panic panic=86400 workqueue.watchdog_thresh=120 [ 0.000000] KERNEL supported cpus: [ 0.000000] Intel GenuineIntel [ 0.000000] AMD AuthenticAMD [ 0.000000] Centaur CentaurHauls [ 0.000000] x86/fpu: xstate_offset[2]: 576, xstate_sizes[2]: 256 [ 0.000000] x86/fpu: Supporting XSAVE feature 0x01: 'x87 floating point registers' [ 0.000000] x86/fpu: Supporting XSAVE feature 0x02: 'SSE registers' [ 0.000000] x86/fpu: Supporting XSAVE feature 0x04: 'AVX registers' [ 0.000000] x86/fpu: Enabled xstate features 0x7, context size is 832 bytes, using 'standard' format. [ 0.000000] x86/fpu: Using 'eager' FPU context switches. [ 0.000000] e820: BIOS-provided physical RAM map: [ 0.000000] BIOS-e820: [mem 0x0000000000000000-0x000000000009fbff] usable [ 0.000000] BIOS-e820: [mem 0x000000000009fc00-0x000000000009ffff] reserved [ 0.000000] BIOS-e820: [mem 0x00000000000f0000-0x00000000000fffff] reserved [ 0.000000] BIOS-e820: [mem 0x0000000000100000-0x00000000bfffcfff] usable [ 0.000000] BIOS-e820: [mem 0x00000000bfffd000-0x00000000bfffffff] reserved [ 0.000000] BIOS-e820: [mem 0x00000000fffbc000-0x00000000ffffffff] reserved [ 0.000000] BIOS-e820: [mem 0x0000000100000000-0x000000021fffffff] usable [ 0.000000] bootconsole [earlyser0] enabled [ 0.000000] NX (Execute Disable) protection: active [ 0.000000] SMBIOS 2.4 present. [ 0.000000] Hypervisor detected: KVM [ 0.000000] e820: last_pfn = 0x220000 max_arch_pfn = 0x400000000 [ 0.000000] x86/PAT: Configuration [0-7]: WB WC UC- UC WB WC UC- WT [ 0.000000] e820: last_pfn = 0xbfffd max_arch_pfn = 0x400000000 [ 0.000000] found SMP MP-table at [mem 0x000f32c0-0x000f32cf] mapped at [ffff8800000f32c0] [ 0.000000] Scanning 1 areas for low memory corruption [ 0.000000] Using GB pages for direct mapping [ 0.000000] ACPI: Early table checksum verification disabled [ 0.000000] ACPI: RSDP 0x00000000000F3090 000014 (v00 Google) [ 0.000000] ACPI: RSDT 0x00000000BFFFDC70 000034 (v01 Google GOOGRSDT 00000001 GOOG 00000001) [ 0.000000] ACPI: FACP 0x00000000BFFFFF00 0000F4 (v02 Google GOOGFACP 00000001 GOOG 00000001) [ 0.000000] ACPI: DSDT 0x00000000BFFFDCB0 0017B2 (v01 Google GOOGDSDT 00000001 GOOG 00000001) [ 0.000000] ACPI: FACS 0x00000000BFFFFEC0 000040 [ 0.000000] ACPI: FACS 0x00000000BFFFFEC0 000040 [ 0.000000] ACPI: SSDT 0x00000000BFFFF590 000930 (v01 Google GOOGSSDT 00000001 GOOG 00000001) [ 0.000000] ACPI: APIC 0x00000000BFFFF4A0 000076 (v01 Google GOOGAPIC 00000001 GOOG 00000001) [ 0.000000] ACPI: WAET 0x00000000BFFFF470 000028 (v01 Google GOOGWAET 00000001 GOOG 00000001) [ 0.000000] kvm-clock: Using msrs 4b564d01 and 4b564d00 [ 0.000000] kvm-clock: cpu 0, msr 2:1fffd001, primary cpu clock [ 0.000000] kvm-clock: using sched offset of 1304594263 cycles [ 0.000000] clocksource: kvm-clock: mask: 0xffffffffffffffff max_cycles: 0x1cd42e4dffb, max_idle_ns: 881590591483 ns [ 0.000000] Zone ranges: [ 0.000000] DMA [mem 0x0000000000001000-0x0000000000ffffff] [ 0.000000] DMA32 [mem 0x0000000001000000-0x00000000ffffffff] [ 0.000000] Normal [mem 0x0000000100000000-0x000000021fffffff] [ 0.000000] Movable zone start for each node [ 0.000000] Early memory node ranges [ 0.000000] node 0: [mem 0x0000000000001000-0x000000000009efff] [ 0.000000] node 0: [mem 0x0000000000100000-0x00000000bfffcfff] [ 0.000000] node 0: [mem 0x0000000100000000-0x000000021fffffff] [ 0.000000] Initmem setup node 0 [mem 0x0000000000001000-0x000000021fffffff] [ 0.000000] kasan: KernelAddressSanitizer initialized [ 0.000000] ACPI: PM-Timer IO Port: 0xb008 [ 0.000000] ACPI: LAPIC_NMI (acpi_id[0xff] dfl dfl lint[0x1]) [ 0.000000] IOAPIC[0]: apic_id 0, version 17, address 0xfec00000, GSI 0-23 [ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 5 global_irq 5 high level) [ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 9 global_irq 9 high level) [ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 10 global_irq 10 high level) [ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 11 global_irq 11 high level) [ 0.000000] Using ACPI (MADT) for SMP configuration information [ 0.000000] smpboot: Allowing 2 CPUs, 0 hotplug CPUs [ 0.000000] PM: Registered nosave memory: [mem 0x00000000-0x00000fff] [ 0.000000] PM: Registered nosave memory: [mem 0x0009f000-0x0009ffff] [ 0.000000] PM: Registered nosave memory: [mem 0x000a0000-0x000effff] [ 0.000000] PM: Registered nosave memory: [mem 0x000f0000-0x000fffff] [ 0.000000] PM: Registered nosave memory: [mem 0xbfffd000-0xbfffffff] [ 0.000000] PM: Registered nosave memory: [mem 0xc0000000-0xfffbbfff] [ 0.000000] PM: Registered nosave memory: [mem 0xfffbc000-0xffffffff] [ 0.000000] e820: [mem 0xc0000000-0xfffbbfff] available for PCI devices [ 0.000000] Booting paravirtualized kernel on KVM [ 0.000000] clocksource: refined-jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604462750000 ns [ 0.000000] setup_percpu: NR_CPUS:64 nr_cpumask_bits:64 nr_cpu_ids:2 nr_node_ids:1 [ 0.000000] PERCPU: Embedded 42 pages/cpu @ffff8801db200000 s132680 r8192 d31160 u1048576 [ 0.000000] Built 1 zonelists in Zone order, mobility grouping on. Total pages: 1935238 [ 0.000000] Kernel command line: BOOT_IMAGE=/vmlinuz root=/dev/sda1 console=ttyS0 earlyprintk=serial vsyscall=native rodata=n ftrace_dump_on_oops=orig_cpu oops=panic panic_on_warn=1 nmi_watchdog=panic panic=86400 workqueue.watchdog_thresh=120 [ 0.000000] PID hash table entries: 4096 (order: 3, 32768 bytes) [ 0.000000] Dentry cache hash table entries: 1048576 (order: 11, 8388608 bytes) [ 0.000000] Inode-cache hash table entries: 524288 (order: 10, 4194304 bytes) [ 0.000000] ================================================================== [ 0.000000] BUG: KASAN: stack-out-of-bounds in reserve_bootmem_region+0xdf/0x130 [ 0.000000] Write of size 8 at addr ffffea0000047ce0 by task swapper/0 [ 0.000000] [ 0.000000] CPU: 0 PID: 0 Comm: swapper Not tainted 4.4.108-g55b3b8c #7 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 772c75e58833c465 ffffffff84207ce8 ffffffff81d02e5d [ 0.000000] ffffea0000047ce0 ffffea0000047ce0 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d20 ffffffff814fb329 ffffea0000047ce0 [ 0.000000] Call Trace: [ 0.000000] [] dump_stack+0xc1/0x124 [ 0.000000] [] print_address_description+0x189/0x260 [ 0.000000] [] kasan_report+0x285/0x370 [ 0.000000] [] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] free_all_bootmem+0xf2/0x24d [ 0.000000] [] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [] ? dmar_table_detect+0x60/0x60 [ 0.000000] [] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [] mem_init+0x13/0x74 [ 0.000000] [] start_kernel+0x31d/0x6e9 [ 0.000000] [] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [] x86_64_start_kernel+0x140/0x163 [ 0.000000] [ 0.000000] [ 0.000000] Memory state around the buggy address: [ 0.000000] ffffea0000047b80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ffffea0000047c00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] >ffffea0000047c80: 00 00 00 00 00 00 f1 f1 f1 f1 00 00 f2 f2 00 00 [ 0.000000] ^ [ 0.000000] ffffea0000047d00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ffffea0000047d80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ================================================================== [ 0.000000] Disabling lock debugging due to kernel taint [ 0.000000] Kernel panic - not syncing: panic_on_warn set ... [ 0.000000] [ 0.000000] CPU: 0 PID: 0 Comm: swapper Tainted: G B 4.4.108-g55b3b8c #7 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 772c75e58833c465 ffffffff84207c40 ffffffff81d02e5d [ 0.000000] ffffffff83fb34b5 ffffffff84207d18 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d08 ffffffff81417caa 0000000041b58ab3 [ 0.000000] Call Trace: [ 0.000000] [] dump_stack+0xc1/0x124 [ 0.000000] [] panic+0x1aa/0x388 [ 0.000000] [] ? percpu_up_read.constprop.45+0xe1/0xe1 [ 0.000000] [] kasan_end_report+0x50/0x50 [ 0.000000] [] kasan_report+0x15c/0x370 [ 0.000000] [] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] free_all_bootmem+0xf2/0x24d [ 0.000000] [] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [] ? dmar_table_detect+0x60/0x60 [ 0.000000] [] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [] mem_init+0x13/0x74 [ 0.000000] [] start_kernel+0x31d/0x6e9 [ 0.000000] [] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [] x86_64_start_kernel+0x140/0x163 [ 0.000000] Rebooting in 86400 seconds.. [ 0.000000] ACPI MEMORY or I/O RESET_REG. SeaBIOS (version 1.8.2-20171012_061934-google) Total RAM Size = 0x00000001e0000000 = 7680 MiB CPUs found: 2 Max CPUs supported: 2 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 0x000f3050: PCHS=0/0/0 translation=lba LCHS=520/128/63 s=4194304 Booting from Hard Disk 0... early console in decompress_kernel input_data: 0x00000000039be26e input_len: 0x0000000001424e03 output: 0x0000000001000000 output_len: 0x0000000003dcea40 run_size: 0x0000000005504000 Decompressing Linux... Parsing ELF... done. Booting the kernel. [ 0.000000] Initializing cgroup subsys cpuset [ 0.000000] Initializing cgroup subsys cpu [ 0.000000] Initializing cgroup subsys cpuacct [ 0.000000] Initializing cgroup subsys schedtune [ 0.000000] Linux version 4.4.108-g55b3b8c (syzkaller@ci) (gcc version 7.1.1 20170620 (GCC) ) #7 SMP PREEMPT Fri Dec 29 21:50:38 UTC 2017 [ 0.000000] Command line: BOOT_IMAGE=/vmlinuz root=/dev/sda1 console=ttyS0 earlyprintk=serial vsyscall=native rodata=n ftrace_dump_on_oops=orig_cpu oops=panic panic_on_warn=1 nmi_watchdog=panic panic=86400 workqueue.watchdog_thresh=120 [ 0.000000] KERNEL supported cpus: [ 0.000000] Intel GenuineIntel [ 0.000000] AMD AuthenticAMD [ 0.000000] Centaur CentaurHauls [ 0.000000] x86/fpu: xstate_offset[2]: 576, xstate_sizes[2]: 256 [ 0.000000] x86/fpu: Supporting XSAVE feature 0x01: 'x87 floating point registers' [ 0.000000] x86/fpu: Supporting XSAVE feature 0x02: 'SSE registers' [ 0.000000] x86/fpu: Supporting XSAVE feature 0x04: 'AVX registers' [ 0.000000] x86/fpu: Enabled xstate features 0x7, context size is 832 bytes, using 'standard' format. [ 0.000000] x86/fpu: Using 'eager' FPU context switches. [ 0.000000] e820: BIOS-provided physical RAM map: [ 0.000000] BIOS-e820: [mem 0x0000000000000000-0x000000000009fbff] usable [ 0.000000] BIOS-e820: [mem 0x000000000009fc00-0x000000000009ffff] reserved [ 0.000000] BIOS-e820: [mem 0x00000000000f0000-0x00000000000fffff] reserved [ 0.000000] BIOS-e820: [mem 0x0000000000100000-0x00000000bfffcfff] usable [ 0.000000] BIOS-e820: [mem 0x00000000bfffd000-0x00000000bfffffff] reserved [ 0.000000] BIOS-e820: [mem 0x00000000fffbc000-0x00000000ffffffff] reserved [ 0.000000] BIOS-e820: [mem 0x0000000100000000-0x000000021fffffff] usable [ 0.000000] bootconsole [earlyser0] enabled [ 0.000000] NX (Execute Disable) protection: active [ 0.000000] SMBIOS 2.4 present. [ 0.000000] Hypervisor detected: KVM [ 0.000000] e820: last_pfn = 0x220000 max_arch_pfn = 0x400000000 [ 0.000000] x86/PAT: Configuration [0-7]: WB WC UC- UC WB WC UC- WT [ 0.000000] e820: last_pfn = 0xbfffd max_arch_pfn = 0x400000000 [ 0.000000] found SMP MP-table at [mem 0x000f32c0-0x000f32cf] mapped at [ffff8800000f32c0] [ 0.000000] Scanning 1 areas for low memory corruption [ 0.000000] Using GB pages for direct mapping [ 0.000000] ACPI: Early table checksum verification disabled [ 0.000000] ACPI: RSDP 0x00000000000F3090 000014 (v00 Google) [ 0.000000] ACPI: RSDT 0x00000000BFFFDC70 000034 (v01 Google GOOGRSDT 00000001 GOOG 00000001) [ 0.000000] ACPI: FACP 0x00000000BFFFFF00 0000F4 (v02 Google GOOGFACP 00000001 GOOG 00000001) [ 0.000000] ACPI: DSDT 0x00000000BFFFDCB0 0017B2 (v01 Google GOOGDSDT 00000001 GOOG 00000001) [ 0.000000] ACPI: FACS 0x00000000BFFFFEC0 000040 [ 0.000000] ACPI: FACS 0x00000000BFFFFEC0 000040 [ 0.000000] ACPI: SSDT 0x00000000BFFFF590 000930 (v01 Google GOOGSSDT 00000001 GOOG 00000001) [ 0.000000] ACPI: APIC 0x00000000BFFFF4A0 000076 (v01 Google GOOGAPIC 00000001 GOOG 00000001) [ 0.000000] ACPI: WAET 0x00000000BFFFF470 000028 (v01 Google GOOGWAET 00000001 GOOG 00000001) [ 0.000000] kvm-clock: Using msrs 4b564d01 and 4b564d00 [ 0.000000] kvm-clock: cpu 0, msr 2:1fffd001, primary cpu clock [ 0.000000] kvm-clock: using sched offset of 1351558270 cycles [ 0.000000] clocksource: kvm-clock: mask: 0xffffffffffffffff max_cycles: 0x1cd42e4dffb, max_idle_ns: 881590591483 ns [ 0.000000] Zone ranges: [ 0.000000] DMA [mem 0x0000000000001000-0x0000000000ffffff] [ 0.000000] DMA32 [mem 0x0000000001000000-0x00000000ffffffff] [ 0.000000] Normal [mem 0x0000000100000000-0x000000021fffffff] [ 0.000000] Movable zone start for each node [ 0.000000] Early memory node ranges [ 0.000000] node 0: [mem 0x0000000000001000-0x000000000009efff] [ 0.000000] node 0: [mem 0x0000000000100000-0x00000000bfffcfff] [ 0.000000] node 0: [mem 0x0000000100000000-0x000000021fffffff] [ 0.000000] Initmem setup node 0 [mem 0x0000000000001000-0x000000021fffffff] [ 0.000000] kasan: KernelAddressSanitizer initialized [ 0.000000] ACPI: PM-Timer IO Port: 0xb008 [ 0.000000] ACPI: LAPIC_NMI (acpi_id[0xff] dfl dfl lint[0x1]) [ 0.000000] IOAPIC[0]: apic_id 0, version 17, address 0xfec00000, GSI 0-23 [ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 5 global_irq 5 high level) [ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 9 global_irq 9 high level) [ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 10 global_irq 10 high level) [ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 11 global_irq 11 high level) [ 0.000000] Using ACPI (MADT) for SMP configuration information [ 0.000000] smpboot: Allowing 2 CPUs, 0 hotplug CPUs [ 0.000000] PM: Registered nosave memory: [mem 0x00000000-0x00000fff] [ 0.000000] PM: Registered nosave memory: [mem 0x0009f000-0x0009ffff] [ 0.000000] PM: Registered nosave memory: [mem 0x000a0000-0x000effff] [ 0.000000] PM: Registered nosave memory: [mem 0x000f0000-0x000fffff] [ 0.000000] PM: Registered nosave memory: [mem 0xbfffd000-0xbfffffff] [ 0.000000] PM: Registered nosave memory: [mem 0xc0000000-0xfffbbfff] [ 0.000000] PM: Registered nosave memory: [mem 0xfffbc000-0xffffffff] [ 0.000000] e820: [mem 0xc0000000-0xfffbbfff] available for PCI devices [ 0.000000] Booting paravirtualized kernel on KVM [ 0.000000] clocksource: refined-jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604462750000 ns [ 0.000000] setup_percpu: NR_CPUS:64 nr_cpumask_bits:64 nr_cpu_ids:2 nr_node_ids:1 [ 0.000000] PERCPU: Embedded 42 pages/cpu @ffff8801db200000 s132680 r8192 d31160 u1048576 [ 0.000000] Built 1 zonelists in Zone order, mobility grouping on. Total pages: 1935238 [ 0.000000] Kernel command line: BOOT_IMAGE=/vmlinuz root=/dev/sda1 console=ttyS0 earlyprintk=serial vsyscall=native rodata=n ftrace_dump_on_oops=orig_cpu oops=panic panic_on_warn=1 nmi_watchdog=panic panic=86400 workqueue.watchdog_thresh=120 [ 0.000000] PID hash table entries: 4096 (order: 3, 32768 bytes) [ 0.000000] Dentry cache hash table entries: 1048576 (order: 11, 8388608 bytes) [ 0.000000] Inode-cache hash table entries: 524288 (order: 10, 4194304 bytes) [ 0.000000] ================================================================== [ 0.000000] BUG: KASAN: stack-out-of-bounds in reserve_bootmem_region+0xdf/0x130 [ 0.000000] Write of size 8 at addr ffffea0000047ce0 by task swapper/0 [ 0.000000] [ 0.000000] CPU: 0 PID: 0 Comm: swapper Not tainted 4.4.108-g55b3b8c #7 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 7d8c27b68e937636 ffffffff84207ce8 ffffffff81d02e5d [ 0.000000] ffffea0000047ce0 ffffea0000047ce0 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d20 ffffffff814fb329 ffffea0000047ce0 [ 0.000000] Call Trace: [ 0.000000] [] dump_stack+0xc1/0x124 [ 0.000000] [] print_address_description+0x189/0x260 [ 0.000000] [] kasan_report+0x285/0x370 [ 0.000000] [] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] free_all_bootmem+0xf2/0x24d [ 0.000000] [] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [] ? dmar_table_detect+0x60/0x60 [ 0.000000] [] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [] mem_init+0x13/0x74 [ 0.000000] [] start_kernel+0x31d/0x6e9 [ 0.000000] [] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [] x86_64_start_kernel+0x140/0x163 [ 0.000000] [ 0.000000] [ 0.000000] Memory state around the buggy address: [ 0.000000] ffffea0000047b80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ffffea0000047c00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] >ffffea0000047c80: 00 00 00 00 00 00 f1 f1 f1 f1 00 00 f2 f2 00 00 [ 0.000000] ^ [ 0.000000] ffffea0000047d00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ffffea0000047d80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ================================================================== [ 0.000000] Disabling lock debugging due to kernel taint [ 0.000000] Kernel panic - not syncing: panic_on_warn set ... [ 0.000000] [ 0.000000] CPU: 0 PID: 0 Comm: swapper Tainted: G B 4.4.108-g55b3b8c #7 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 7d8c27b68e937636 ffffffff84207c40 ffffffff81d02e5d [ 0.000000] ffffffff83fb34b5 ffffffff84207d18 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d08 ffffffff81417caa 0000000041b58ab3 [ 0.000000] Call Trace: [ 0.000000] [] dump_stack+0xc1/0x124 [ 0.000000] [] panic+0x1aa/0x388 [ 0.000000] [] ? percpu_up_read.constprop.45+0xe1/0xe1 [ 0.000000] [] kasan_end_report+0x50/0x50 [ 0.000000] [] kasan_report+0x15c/0x370 [ 0.000000] [] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] free_all_bootmem+0xf2/0x24d [ 0.000000] [] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [] ? dmar_table_detect+0x60/0x60 [ 0.000000] [] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [] mem_init+0x13/0x74 [ 0.000000] [] start_kernel+0x31d/0x6e9 [ 0.000000] [] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [] x86_64_start_kernel+0x140/0x163 [ 0.000000] Rebooting in 86400 seconds.. [ 0.000000] ACPI MEMORY or I/O RESET_REG. SeaBIOS (version 1.8.2-20171012_061934-google) Total RAM Size = 0x00000001e0000000 = 7680 MiB CPUs found: 2 Max CPUs supported: 2 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 0x000f3050: PCHS=0/0/0 translation=lba LCHS=520/128/63 s=4194304 Booting from Hard Disk 0... early console in decompress_kernel input_data: 0x00000000039be26e input_len: 0x0000000001424e03 output: 0x0000000001000000 output_len: 0x0000000003dcea40 run_size: 0x0000000005504000 Decompressing Linux... Parsing ELF... done. Booting the kernel. [ 0.000000] Initializing cgroup subsys cpuset [ 0.000000] Initializing cgroup subsys cpu [ 0.000000] Initializing cgroup subsys cpuacct [ 0.000000] Initializing cgroup subsys schedtune [ 0.000000] Linux version 4.4.108-g55b3b8c (syzkaller@ci) (gcc version 7.1.1 20170620 (GCC) ) #7 SMP PREEMPT Fri Dec 29 21:50:38 UTC 2017 [ 0.000000] Command line: BOOT_IMAGE=/vmlinuz root=/dev/sda1 console=ttyS0 earlyprintk=serial vsyscall=native rodata=n ftrace_dump_on_oops=orig_cpu oops=panic panic_on_warn=1 nmi_watchdog=panic panic=86400 workqueue.watchdog_thresh=120 [ 0.000000] KERNEL supported cpus: [ 0.000000] Intel GenuineIntel [ 0.000000] AMD AuthenticAMD [ 0.000000] Centaur CentaurHauls [ 0.000000] x86/fpu: xstate_offset[2]: 576, xstate_sizes[2]: 256 [ 0.000000] x86/fpu: Supporting XSAVE feature 0x01: 'x87 floating point registers' [ 0.000000] x86/fpu: Supporting XSAVE feature 0x02: 'SSE registers' [ 0.000000] x86/fpu: Supporting XSAVE feature 0x04: 'AVX registers' [ 0.000000] x86/fpu: Enabled xstate features 0x7, context size is 832 bytes, using 'standard' format. [ 0.000000] x86/fpu: Using 'eager' FPU context switches. [ 0.000000] e820: BIOS-provided physical RAM map: [ 0.000000] BIOS-e820: [mem 0x0000000000000000-0x000000000009fbff] usable [ 0.000000] BIOS-e820: [mem 0x000000000009fc00-0x000000000009ffff] reserved [ 0.000000] BIOS-e820: [mem 0x00000000000f0000-0x00000000000fffff] reserved [ 0.000000] BIOS-e820: [mem 0x0000000000100000-0x00000000bfffcfff] usable [ 0.000000] BIOS-e820: [mem 0x00000000bfffd000-0x00000000bfffffff] reserved [ 0.000000] BIOS-e820: [mem 0x00000000fffbc000-0x00000000ffffffff] reserved [ 0.000000] BIOS-e820: [mem 0x0000000100000000-0x000000021fffffff] usable [ 0.000000] bootconsole [earlyser0] enabled [ 0.000000] NX (Execute Disable) protection: active [ 0.000000] SMBIOS 2.4 present. [ 0.000000] Hypervisor detected: KVM [ 0.000000] e820: last_pfn = 0x220000 max_arch_pfn = 0x400000000 [ 0.000000] x86/PAT: Configuration [0-7]: WB WC UC- UC WB WC UC- WT [ 0.000000] e820: last_pfn = 0xbfffd max_arch_pfn = 0x400000000 [ 0.000000] found SMP MP-table at [mem 0x000f32c0-0x000f32cf] mapped at [ffff8800000f32c0] [ 0.000000] Scanning 1 areas for low memory corruption [ 0.000000] Using GB pages for direct mapping [ 0.000000] ACPI: Early table checksum verification disabled [ 0.000000] ACPI: RSDP 0x00000000000F3090 000014 (v00 Google) [ 0.000000] ACPI: RSDT 0x00000000BFFFDC70 000034 (v01 Google GOOGRSDT 00000001 GOOG 00000001) [ 0.000000] ACPI: FACP 0x00000000BFFFFF00 0000F4 (v02 Google GOOGFACP 00000001 GOOG 00000001) [ 0.000000] ACPI: DSDT 0x00000000BFFFDCB0 0017B2 (v01 Google GOOGDSDT 00000001 GOOG 00000001) [ 0.000000] ACPI: FACS 0x00000000BFFFFEC0 000040 [ 0.000000] ACPI: FACS 0x00000000BFFFFEC0 000040 [ 0.000000] ACPI: SSDT 0x00000000BFFFF590 000930 (v01 Google GOOGSSDT 00000001 GOOG 00000001) [ 0.000000] ACPI: APIC 0x00000000BFFFF4A0 000076 (v01 Google GOOGAPIC 00000001 GOOG 00000001) [ 0.000000] ACPI: WAET 0x00000000BFFFF470 000028 (v01 Google GOOGWAET 00000001 GOOG 00000001) [ 0.000000] kvm-clock: Using msrs 4b564d01 and 4b564d00 [ 0.000000] kvm-clock: cpu 0, msr 2:1fffd001, primary cpu clock [ 0.000000] kvm-clock: using sched offset of 1339324561 cycles [ 0.000000] clocksource: kvm-clock: mask: 0xffffffffffffffff max_cycles: 0x1cd42e4dffb, max_idle_ns: 881590591483 ns [ 0.000000] Zone ranges: [ 0.000000] DMA [mem 0x0000000000001000-0x0000000000ffffff] [ 0.000000] DMA32 [mem 0x0000000001000000-0x00000000ffffffff] [ 0.000000] Normal [mem 0x0000000100000000-0x000000021fffffff] [ 0.000000] Movable zone start for each node [ 0.000000] Early memory node ranges [ 0.000000] node 0: [mem 0x0000000000001000-0x000000000009efff] [ 0.000000] node 0: [mem 0x0000000000100000-0x00000000bfffcfff] [ 0.000000] node 0: [mem 0x0000000100000000-0x000000021fffffff] [ 0.000000] Initmem setup node 0 [mem 0x0000000000001000-0x000000021fffffff] [ 0.000000] kasan: KernelAddressSanitizer initialized [ 0.000000] ACPI: PM-Timer IO Port: 0xb008 [ 0.000000] ACPI: LAPIC_NMI (acpi_id[0xff] dfl dfl lint[0x1]) [ 0.000000] IOAPIC[0]: apic_id 0, version 17, address 0xfec00000, GSI 0-23 [ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 5 global_irq 5 high level) [ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 9 global_irq 9 high level) [ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 10 global_irq 10 high level) [ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 11 global_irq 11 high level) [ 0.000000] Using ACPI (MADT) for SMP configuration information [ 0.000000] smpboot: Allowing 2 CPUs, 0 hotplug CPUs [ 0.000000] PM: Registered nosave memory: [mem 0x00000000-0x00000fff] [ 0.000000] PM: Registered nosave memory: [mem 0x0009f000-0x0009ffff] [ 0.000000] PM: Registered nosave memory: [mem 0x000a0000-0x000effff] [ 0.000000] PM: Registered nosave memory: [mem 0x000f0000-0x000fffff] [ 0.000000] PM: Registered nosave memory: [mem 0xbfffd000-0xbfffffff] [ 0.000000] PM: Registered nosave memory: [mem 0xc0000000-0xfffbbfff] [ 0.000000] PM: Registered nosave memory: [mem 0xfffbc000-0xffffffff] [ 0.000000] e820: [mem 0xc0000000-0xfffbbfff] available for PCI devices [ 0.000000] Booting paravirtualized kernel on KVM [ 0.000000] clocksource: refined-jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604462750000 ns [ 0.000000] setup_percpu: NR_CPUS:64 nr_cpumask_bits:64 nr_cpu_ids:2 nr_node_ids:1 [ 0.000000] PERCPU: Embedded 42 pages/cpu @ffff8801db200000 s132680 r8192 d31160 u1048576 [ 0.000000] Built 1 zonelists in Zone order, mobility grouping on. Total pages: 1935238 [ 0.000000] Kernel command line: BOOT_IMAGE=/vmlinuz root=/dev/sda1 console=ttyS0 earlyprintk=serial vsyscall=native rodata=n ftrace_dump_on_oops=orig_cpu oops=panic panic_on_warn=1 nmi_watchdog=panic panic=86400 workqueue.watchdog_thresh=120 [ 0.000000] PID hash table entries: 4096 (order: 3, 32768 bytes) [ 0.000000] Dentry cache hash table entries: 1048576 (order: 11, 8388608 bytes) [ 0.000000] Inode-cache hash table entries: 524288 (order: 10, 4194304 bytes) [ 0.000000] ================================================================== [ 0.000000] BUG: KASAN: stack-out-of-bounds in reserve_bootmem_region+0xdf/0x130 [ 0.000000] Write of size 8 at addr ffffea0000047ce0 by task swapper/0 [ 0.000000] [ 0.000000] CPU: 0 PID: 0 Comm: swapper Not tainted 4.4.108-g55b3b8c #7 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 7bf530508cfc7ed0 ffffffff84207ce8 ffffffff81d02e5d [ 0.000000] ffffea0000047ce0 ffffea0000047ce0 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d20 ffffffff814fb329 ffffea0000047ce0 [ 0.000000] Call Trace: [ 0.000000] [] dump_stack+0xc1/0x124 [ 0.000000] [] print_address_description+0x189/0x260 [ 0.000000] [] kasan_report+0x285/0x370 [ 0.000000] [] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] free_all_bootmem+0xf2/0x24d [ 0.000000] [] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [] ? dmar_table_detect+0x60/0x60 [ 0.000000] [] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [] mem_init+0x13/0x74 [ 0.000000] [] start_kernel+0x31d/0x6e9 [ 0.000000] [] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [] x86_64_start_kernel+0x140/0x163 [ 0.000000] [ 0.000000] [ 0.000000] Memory state around the buggy address: [ 0.000000] ffffea0000047b80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ffffea0000047c00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] >ffffea0000047c80: 00 00 00 00 00 00 f1 f1 f1 f1 00 00 f2 f2 00 00 [ 0.000000] ^ [ 0.000000] ffffea0000047d00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ffffea0000047d80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ================================================================== [ 0.000000] Disabling lock debugging due to kernel taint [ 0.000000] Kernel panic - not syncing: panic_on_warn set ... [ 0.000000] [ 0.000000] CPU: 0 PID: 0 Comm: swapper Tainted: G B 4.4.108-g55b3b8c #7 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 7bf530508cfc7ed0 ffffffff84207c40 ffffffff81d02e5d [ 0.000000] ffffffff83fb34b5 ffffffff84207d18 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d08 ffffffff81417caa 0000000041b58ab3 [ 0.000000] Call Trace: [ 0.000000] [] dump_stack+0xc1/0x124 [ 0.000000] [] panic+0x1aa/0x388 [ 0.000000] [] ? percpu_up_read.constprop.45+0xe1/0xe1 [ 0.000000] [] kasan_end_report+0x50/0x50 [ 0.000000] [] kasan_report+0x15c/0x370 [ 0.000000] [] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] free_all_bootmem+0xf2/0x24d [ 0.000000] [] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [] ? dmar_table_detect+0x60/0x60 [ 0.000000] [] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [] mem_init+0x13/0x74 [ 0.000000] [] start_kernel+0x31d/0x6e9 [ 0.000000] [] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [] x86_64_start_kernel+0x140/0x163 [ 0.000000] Rebooting in 86400 seconds.. [ 0.000000] ACPI MEMORY or I/O RESET_REG. SeaBIOS (version 1.8.2-20171012_061934-google) Total RAM Size = 0x00000001e0000000 = 7680 MiB CPUs found: 2 Max CPUs supported: 2 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 0x000f3050: PCHS=0/0/0 translation=lba LCHS=520/128/63 s=4194304 Booting from Hard Disk 0... early console in decompress_kernel input_data: 0x00000000039be26e input_len: 0x0000000001424e03 output: 0x0000000001000000 output_len: 0x0000000003dcea40 run_size: 0x0000000005504000 Decompressing Linux... Parsing ELF... done. Booting the kernel. [ 0.000000] Initializing cgroup subsys cpuset [ 0.000000] Initializing cgroup subsys cpu [ 0.000000] Initializing cgroup subsys cpuacct [ 0.000000] Initializing cgroup subsys schedtune [ 0.000000] Linux version 4.4.108-g55b3b8c (syzkaller@ci) (gcc version 7.1.1 20170620 (GCC) ) #7 SMP PREEMPT Fri Dec 29 21:50:38 UTC 2017 [ 0.000000] Command line: BOOT_IMAGE=/vmlinuz root=/dev/sda1 console=ttyS0 earlyprintk=serial vsyscall=native rodata=n ftrace_dump_on_oops=orig_cpu oops=panic panic_on_warn=1 nmi_watchdog=panic panic=86400 workqueue.watchdog_thresh=120 [ 0.000000] KERNEL supported cpus: [ 0.000000] Intel GenuineIntel [ 0.000000] AMD AuthenticAMD [ 0.000000] Centaur CentaurHauls [ 0.000000] x86/fpu: xstate_offset[2]: 576, xstate_sizes[2]: 256 [ 0.000000] x86/fpu: Supporting XSAVE feature 0x01: 'x87 floating point registers' [ 0.000000] x86/fpu: Supporting XSAVE feature 0x02: 'SSE registers' [ 0.000000] x86/fpu: Supporting XSAVE feature 0x04: 'AVX registers' [ 0.000000] x86/fpu: Enabled xstate features 0x7, context size is 832 bytes, using 'standard' format. [ 0.000000] x86/fpu: Using 'eager' FPU context switches. [ 0.000000] e820: BIOS-provided physical RAM map: [ 0.000000] BIOS-e820: [mem 0x0000000000000000-0x000000000009fbff] usable [ 0.000000] BIOS-e820: [mem 0x000000000009fc00-0x000000000009ffff] reserved [ 0.000000] BIOS-e820: [mem 0x00000000000f0000-0x00000000000fffff] reserved [ 0.000000] BIOS-e820: [mem 0x0000000000100000-0x00000000bfffcfff] usable [ 0.000000] BIOS-e820: [mem 0x00000000bfffd000-0x00000000bfffffff] reserved [ 0.000000] BIOS-e820: [mem 0x00000000fffbc000-0x00000000ffffffff] reserved [ 0.000000] BIOS-e820: [mem 0x0000000100000000-0x000000021fffffff] usable [ 0.000000] bootconsole [earlyser0] enabled [ 0.000000] NX (Execute Disable) protection: active [ 0.000000] SMBIOS 2.4 present. [ 0.000000] Hypervisor detected: KVM [ 0.000000] e820: last_pfn = 0x220000 max_arch_pfn = 0x400000000 [ 0.000000] x86/PAT: Configuration [0-7]: WB WC UC- UC WB WC UC- WT [ 0.000000] e820: last_pfn = 0xbfffd max_arch_pfn = 0x400000000 [ 0.000000] found SMP MP-table at [mem 0x000f32c0-0x000f32cf] mapped at [ffff8800000f32c0] [ 0.000000] Scanning 1 areas for low memory corruption [ 0.000000] Using GB pages for direct mapping [ 0.000000] ACPI: Early table checksum verification disabled [ 0.000000] ACPI: RSDP 0x00000000000F3090 000014 (v00 Google) [ 0.000000] ACPI: RSDT 0x00000000BFFFDC70 000034 (v01 Google GOOGRSDT 00000001 GOOG 00000001) [ 0.000000] ACPI: FACP 0x00000000BFFFFF00 0000F4 (v02 Google GOOGFACP 00000001 GOOG 00000001) [ 0.000000] ACPI: DSDT 0x00000000BFFFDCB0 0017B2 (v01 Google GOOGDSDT 00000001 GOOG 00000001) [ 0.000000] ACPI: FACS 0x00000000BFFFFEC0 000040 [ 0.000000] ACPI: FACS 0x00000000BFFFFEC0 000040 [ 0.000000] ACPI: SSDT 0x00000000BFFFF590 000930 (v01 Google GOOGSSDT 00000001 GOOG 00000001) [ 0.000000] ACPI: APIC 0x00000000BFFFF4A0 000076 (v01 Google GOOGAPIC 00000001 GOOG 00000001) [ 0.000000] ACPI: WAET 0x00000000BFFFF470 000028 (v01 Google GOOGWAET 00000001 GOOG 00000001) [ 0.000000] kvm-clock: Using msrs 4b564d01 and 4b564d00 [ 0.000000] kvm-clock: cpu 0, msr 2:1fffd001, primary cpu clock [ 0.000000] kvm-clock: using sched offset of 1301311922 cycles [ 0.000000] clocksource: kvm-clock: mask: 0xffffffffffffffff max_cycles: 0x1cd42e4dffb, max_idle_ns: 881590591483 ns [ 0.000000] Zone ranges: [ 0.000000] DMA [mem 0x0000000000001000-0x0000000000ffffff] [ 0.000000] DMA32 [mem 0x0000000001000000-0x00000000ffffffff] [ 0.000000] Normal [mem 0x0000000100000000-0x000000021fffffff] [ 0.000000] Movable zone start for each node [ 0.000000] Early memory node ranges [ 0.000000] node 0: [mem 0x0000000000001000-0x000000000009efff] [ 0.000000] node 0: [mem 0x0000000000100000-0x00000000bfffcfff] [ 0.000000] node 0: [mem 0x0000000100000000-0x000000021fffffff] [ 0.000000] Initmem setup node 0 [mem 0x0000000000001000-0x000000021fffffff] [ 0.000000] kasan: KernelAddressSanitizer initialized [ 0.000000] ACPI: PM-Timer IO Port: 0xb008 [ 0.000000] ACPI: LAPIC_NMI (acpi_id[0xff] dfl dfl lint[0x1]) [ 0.000000] IOAPIC[0]: apic_id 0, version 17, address 0xfec00000, GSI 0-23 [ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 5 global_irq 5 high level) [ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 9 global_irq 9 high level) [ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 10 global_irq 10 high level) [ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 11 global_irq 11 high level) [ 0.000000] Using ACPI (MADT) for SMP configuration information [ 0.000000] smpboot: Allowing 2 CPUs, 0 hotplug CPUs [ 0.000000] PM: Registered nosave memory: [mem 0x00000000-0x00000fff] [ 0.000000] PM: Registered nosave memory: [mem 0x0009f000-0x0009ffff] [ 0.000000] PM: Registered nosave memory: [mem 0x000a0000-0x000effff] [ 0.000000] PM: Registered nosave memory: [mem 0x000f0000-0x000fffff] [ 0.000000] PM: Registered nosave memory: [mem 0xbfffd000-0xbfffffff] [ 0.000000] PM: Registered nosave memory: [mem 0xc0000000-0xfffbbfff] [ 0.000000] PM: Registered nosave memory: [mem 0xfffbc000-0xffffffff] [ 0.000000] e820: [mem 0xc0000000-0xfffbbfff] available for PCI devices [ 0.000000] Booting paravirtualized kernel on KVM [ 0.000000] clocksource: refined-jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604462750000 ns [ 0.000000] setup_percpu: NR_CPUS:64 nr_cpumask_bits:64 nr_cpu_ids:2 nr_node_ids:1 [ 0.000000] PERCPU: Embedded 42 pages/cpu @ffff8801db200000 s132680 r8192 d31160 u1048576 [ 0.000000] Built 1 zonelists in Zone order, mobility grouping on. Total pages: 1935238 [ 0.000000] Kernel command line: BOOT_IMAGE=/vmlinuz root=/dev/sda1 console=ttyS0 earlyprintk=serial vsyscall=native rodata=n ftrace_dump_on_oops=orig_cpu oops=panic panic_on_warn=1 nmi_watchdog=panic panic=86400 workqueue.watchdog_thresh=120 [ 0.000000] PID hash table entries: 4096 (order: 3, 32768 bytes) [ 0.000000] Dentry cache hash table entries: 1048576 (order: 11, 8388608 bytes) [ 0.000000] Inode-cache hash table entries: 524288 (order: 10, 4194304 bytes) [ 0.000000] ================================================================== [ 0.000000] BUG: KASAN: stack-out-of-bounds in reserve_bootmem_region+0xdf/0x130 [ 0.000000] Write of size 8 at addr ffffea0000047ce0 by task swapper/0 [ 0.000000] [ 0.000000] CPU: 0 PID: 0 Comm: swapper Not tainted 4.4.108-g55b3b8c #7 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 76a5759087acc410 ffffffff84207ce8 ffffffff81d02e5d [ 0.000000] ffffea0000047ce0 ffffea0000047ce0 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d20 ffffffff814fb329 ffffea0000047ce0 [ 0.000000] Call Trace: [ 0.000000] [] dump_stack+0xc1/0x124 [ 0.000000] [] print_address_description+0x189/0x260 [ 0.000000] [] kasan_report+0x285/0x370 [ 0.000000] [] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] free_all_bootmem+0xf2/0x24d [ 0.000000] [] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [] ? dmar_table_detect+0x60/0x60 [ 0.000000] [] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [] mem_init+0x13/0x74 [ 0.000000] [] start_kernel+0x31d/0x6e9 [ 0.000000] [] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [] x86_64_start_kernel+0x140/0x163 [ 0.000000] [ 0.000000] [ 0.000000] Memory state around the buggy address: [ 0.000000] ffffea0000047b80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ffffea0000047c00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] >ffffea0000047c80: 00 00 00 00 00 00 f1 f1 f1 f1 00 00 f2 f2 00 00 [ 0.000000] ^ [ 0.000000] ffffea0000047d00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ffffea0000047d80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ================================================================== [ 0.000000] Disabling lock debugging due to kernel taint [ 0.000000] Kernel panic - not syncing: panic_on_warn set ... [ 0.000000] [ 0.000000] CPU: 0 PID: 0 Comm: swapper Tainted: G B 4.4.108-g55b3b8c #7 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 76a5759087acc410 ffffffff84207c40 ffffffff81d02e5d [ 0.000000] ffffffff83fb34b5 ffffffff84207d18 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d08 ffffffff81417caa 0000000041b58ab3 [ 0.000000] Call Trace: [ 0.000000] [] dump_stack+0xc1/0x124 [ 0.000000] [] panic+0x1aa/0x388 [ 0.000000] [] ? percpu_up_read.constprop.45+0xe1/0xe1 [ 0.000000] [] kasan_end_report+0x50/0x50 [ 0.000000] [] kasan_report+0x15c/0x370 [ 0.000000] [] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] free_all_bootmem+0xf2/0x24d [ 0.000000] [] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [] ? dmar_table_detect+0x60/0x60 [ 0.000000] [] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [] mem_init+0x13/0x74 [ 0.000000] [] start_kernel+0x31d/0x6e9 [ 0.000000] [] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [] x86_64_start_kernel+0x140/0x163 [ 0.000000] Rebooting in 86400 seconds.. [ 0.000000] ACPI MEMORY or I/O RESET_REG. SeaBIOS (version 1.8.2-20171012_061934-google) Total RAM Size = 0x00000001e0000000 = 7680 MiB CPUs found: 2 Max CPUs supported: 2 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 0x000f3050: PCHS=0/0/0 translation=lba LCHS=520/128/63 s=4194304 Booting from Hard Disk 0... early console in decompress_kernel input_data: 0x00000000039be26e input_len: 0x0000000001424e03 output: 0x0000000001000000 output_len: 0x0000000003dcea40 run_size: 0x0000000005504000 Decompressing Linux... Parsing ELF... done. Booting the kernel. [ 0.000000] Initializing cgroup subsys cpuset [ 0.000000] Initializing cgroup subsys cpu [ 0.000000] Initializing cgroup subsys cpuacct [ 0.000000] Initializing cgroup subsys schedtune [ 0.000000] Linux version 4.4.108-g55b3b8c (syzkaller@ci) (gcc version 7.1.1 20170620 (GCC) ) #7 SMP PREEMPT Fri Dec 29 21:50:38 UTC 2017 [ 0.000000] Command line: BOOT_IMAGE=/vmlinuz root=/dev/sda1 console=ttyS0 earlyprintk=serial vsyscall=native rodata=n ftrace_dump_on_oops=orig_cpu oops=panic panic_on_warn=1 nmi_watchdog=panic panic=86400 workqueue.watchdog_thresh=120 [ 0.000000] KERNEL supported cpus: [ 0.000000] Intel GenuineIntel [ 0.000000] AMD AuthenticAMD [ 0.000000] Centaur CentaurHauls [ 0.000000] x86/fpu: xstate_offset[2]: 576, xstate_sizes[2]: 256 [ 0.000000] x86/fpu: Supporting XSAVE feature 0x01: 'x87 floating point registers' [ 0.000000] x86/fpu: Supporting XSAVE feature 0x02: 'SSE registers' [ 0.000000] x86/fpu: Supporting XSAVE feature 0x04: 'AVX registers' [ 0.000000] x86/fpu: Enabled xstate features 0x7, context size is 832 bytes, using 'standard' format. [ 0.000000] x86/fpu: Using 'eager' FPU context switches. [ 0.000000] e820: BIOS-provided physical RAM map: [ 0.000000] BIOS-e820: [mem 0x0000000000000000-0x000000000009fbff] usable [ 0.000000] BIOS-e820: [mem 0x000000000009fc00-0x000000000009ffff] reserved [ 0.000000] BIOS-e820: [mem 0x00000000000f0000-0x00000000000fffff] reserved [ 0.000000] BIOS-e820: [mem 0x0000000000100000-0x00000000bfffcfff] usable [ 0.000000] BIOS-e820: [mem 0x00000000bfffd000-0x00000000bfffffff] reserved [ 0.000000] BIOS-e820: [mem 0x00000000fffbc000-0x00000000ffffffff] reserved [ 0.000000] BIOS-e820: [mem 0x0000000100000000-0x000000021fffffff] usable [ 0.000000] bootconsole [earlyser0] enabled [ 0.000000] NX (Execute Disable) protection: active [ 0.000000] SMBIOS 2.4 present. [ 0.000000] Hypervisor detected: KVM [ 0.000000] e820: last_pfn = 0x220000 max_arch_pfn = 0x400000000 [ 0.000000] x86/PAT: Configuration [0-7]: WB WC UC- UC WB WC UC- WT [ 0.000000] e820: last_pfn = 0xbfffd max_arch_pfn = 0x400000000 [ 0.000000] found SMP MP-table at [mem 0x000f32c0-0x000f32cf] mapped at [ffff8800000f32c0] [ 0.000000] Scanning 1 areas for low memory corruption [ 0.000000] Using GB pages for direct mapping [ 0.000000] ACPI: Early table checksum verification disabled [ 0.000000] ACPI: RSDP 0x00000000000F3090 000014 (v00 Google) [ 0.000000] ACPI: RSDT 0x00000000BFFFDC70 000034 (v01 Google GOOGRSDT 00000001 GOOG 00000001) [ 0.000000] ACPI: FACP 0x00000000BFFFFF00 0000F4 (v02 Google GOOGFACP 00000001 GOOG 00000001) [ 0.000000] ACPI: DSDT 0x00000000BFFFDCB0 0017B2 (v01 Google GOOGDSDT 00000001 GOOG 00000001) [ 0.000000] ACPI: FACS 0x00000000BFFFFEC0 000040 [ 0.000000] ACPI: FACS 0x00000000BFFFFEC0 000040 [ 0.000000] ACPI: SSDT 0x00000000BFFFF590 000930 (v01 Google GOOGSSDT 00000001 GOOG 00000001) [ 0.000000] ACPI: APIC 0x00000000BFFFF4A0 000076 (v01 Google GOOGAPIC 00000001 GOOG 00000001) [ 0.000000] ACPI: WAET 0x00000000BFFFF470 000028 (v01 Google GOOGWAET 00000001 GOOG 00000001) [ 0.000000] kvm-clock: Using msrs 4b564d01 and 4b564d00 [ 0.000000] kvm-clock: cpu 0, msr 2:1fffd001, primary cpu clock [ 0.000000] kvm-clock: using sched offset of 1323059524 cycles [ 0.000000] clocksource: kvm-clock: mask: 0xffffffffffffffff max_cycles: 0x1cd42e4dffb, max_idle_ns: 881590591483 ns [ 0.000000] Zone ranges: [ 0.000000] DMA [mem 0x0000000000001000-0x0000000000ffffff] [ 0.000000] DMA32 [mem 0x0000000001000000-0x00000000ffffffff] [ 0.000000] Normal [mem 0x0000000100000000-0x000000021fffffff] [ 0.000000] Movable zone start for each node [ 0.000000] Early memory node ranges [ 0.000000] node 0: [mem 0x0000000000001000-0x000000000009efff] [ 0.000000] node 0: [mem 0x0000000000100000-0x00000000bfffcfff] [ 0.000000] node 0: [mem 0x0000000100000000-0x000000021fffffff] [ 0.000000] Initmem setup node 0 [mem 0x0000000000001000-0x000000021fffffff] [ 0.000000] kasan: KernelAddressSanitizer initialized [ 0.000000] ACPI: PM-Timer IO Port: 0xb008 [ 0.000000] ACPI: LAPIC_NMI (acpi_id[0xff] dfl dfl lint[0x1]) [ 0.000000] IOAPIC[0]: apic_id 0, version 17, address 0xfec00000, GSI 0-23 [ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 5 global_irq 5 high level) [ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 9 global_irq 9 high level) [ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 10 global_irq 10 high level) [ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 11 global_irq 11 high level) [ 0.000000] Using ACPI (MADT) for SMP configuration information [ 0.000000] smpboot: Allowing 2 CPUs, 0 hotplug CPUs [ 0.000000] PM: Registered nosave memory: [mem 0x00000000-0x00000fff] [ 0.000000] PM: Registered nosave memory: [mem 0x0009f000-0x0009ffff] [ 0.000000] PM: Registered nosave memory: [mem 0x000a0000-0x000effff] [ 0.000000] PM: Registered nosave memory: [mem 0x000f0000-0x000fffff] [ 0.000000] PM: Registered nosave memory: [mem 0xbfffd000-0xbfffffff] [ 0.000000] PM: Registered nosave memory: [mem 0xc0000000-0xfffbbfff] [ 0.000000] PM: Registered nosave memory: [mem 0xfffbc000-0xffffffff] [ 0.000000] e820: [mem 0xc0000000-0xfffbbfff] available for PCI devices [ 0.000000] Booting paravirtualized kernel on KVM [ 0.000000] clocksource: refined-jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604462750000 ns [ 0.000000] setup_percpu: NR_CPUS:64 nr_cpumask_bits:64 nr_cpu_ids:2 nr_node_ids:1 [ 0.000000] PERCPU: Embedded 42 pages/cpu @ffff8801db200000 s132680 r8192 d31160 u1048576 [ 0.000000] Built 1 zonelists in Zone order, mobility grouping on. Total pages: 1935238 [ 0.000000] Kernel command line: BOOT_IMAGE=/vmlinuz root=/dev/sda1 console=ttyS0 earlyprintk=serial vsyscall=native rodata=n ftrace_dump_on_oops=orig_cpu oops=panic panic_on_warn=1 nmi_watchdog=panic panic=86400 workqueue.watchdog_thresh=120 [ 0.000000] PID hash table entries: 4096 (order: 3, 32768 bytes) [ 0.000000] Dentry cache hash table entries: 1048576 (order: 11, 8388608 bytes) [ 0.000000] Inode-cache hash table entries: 524288 (order: 10, 4194304 bytes) [ 0.000000] ================================================================== [ 0.000000] BUG: KASAN: stack-out-of-bounds in reserve_bootmem_region+0xdf/0x130 [ 0.000000] Write of size 8 at addr ffffea0000047ce0 by task swapper/0 [ 0.000000] [ 0.000000] CPU: 0 PID: 0 Comm: swapper Not tainted 4.4.108-g55b3b8c #7 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 79a95a768ab0a8f6 ffffffff84207ce8 ffffffff81d02e5d [ 0.000000] ffffea0000047ce0 ffffea0000047ce0 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d20 ffffffff814fb329 ffffea0000047ce0 [ 0.000000] Call Trace: [ 0.000000] [] dump_stack+0xc1/0x124 [ 0.000000] [] print_address_description+0x189/0x260 [ 0.000000] [] kasan_report+0x285/0x370 [ 0.000000] [] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] free_all_bootmem+0xf2/0x24d [ 0.000000] [] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [] ? dmar_table_detect+0x60/0x60 [ 0.000000] [] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [] mem_init+0x13/0x74 [ 0.000000] [] start_kernel+0x31d/0x6e9 [ 0.000000] [] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [] x86_64_start_kernel+0x140/0x163 [ 0.000000] [ 0.000000] [ 0.000000] Memory state around the buggy address: [ 0.000000] ffffea0000047b80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ffffea0000047c00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] >ffffea0000047c80: 00 00 00 00 00 00 f1 f1 f1 f1 00 00 f2 f2 00 00 [ 0.000000] ^ [ 0.000000] ffffea0000047d00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ffffea0000047d80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ================================================================== [ 0.000000] Disabling lock debugging due to kernel taint [ 0.000000] Kernel panic - not syncing: panic_on_warn set ... [ 0.000000] [ 0.000000] CPU: 0 PID: 0 Comm: swapper Tainted: G B 4.4.108-g55b3b8c #7 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 79a95a768ab0a8f6 ffffffff84207c40 ffffffff81d02e5d [ 0.000000] ffffffff83fb34b5 ffffffff84207d18 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d08 ffffffff81417caa 0000000041b58ab3 [ 0.000000] Call Trace: [ 0.000000] [] dump_stack+0xc1/0x124 [ 0.000000] [] panic+0x1aa/0x388 [ 0.000000] [] ? percpu_up_read.constprop.45+0xe1/0xe1 [ 0.000000] [] kasan_end_report+0x50/0x50 [ 0.000000] [] kasan_report+0x15c/0x370 [ 0.000000] [] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] free_all_bootmem+0xf2/0x24d [ 0.000000] [] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [] ? dmar_table_detect+0x60/0x60 [ 0.000000] [] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [] mem_init+0x13/0x74 [ 0.000000] [] start_kernel+0x31d/0x6e9 [ 0.000000] [] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [] x86_64_start_kernel+0x140/0x163 [ 0.000000] Rebooting in 86400 seconds.. [ 0.000000] ACPI MEMORY or I/O RESET_REG. SeaBIOS (version 1.8.2-20171012_061934-google) Total RAM Size = 0x00000001e0000000 = 7680 MiB CPUs found: 2 Max CPUs supported: 2 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 0x000f3050: PCHS=0/0/0 translation=lba LCHS=520/128/63 s=4194304 Booting from Hard Disk 0... early console in decompress_kernel input_data: 0x00000000039be26e input_len: 0x0000000001424e03 output: 0x0000000001000000 output_len: 0x0000000003dcea40 run_size: 0x0000000005504000 Decompressing Linux... Parsing ELF... done. Booting the kernel. [ 0.000000] Initializing cgroup subsys cpuset [ 0.000000] Initializing cgroup subsys cpu [ 0.000000] Initializing cgroup subsys cpuacct [ 0.000000] Initializing cgroup subsys schedtune [ 0.000000] Linux version 4.4.108-g55b3b8c (syzkaller@ci) (gcc version 7.1.1 20170620 (GCC) ) #7 SMP PREEMPT Fri Dec 29 21:50:38 UTC 2017 [ 0.000000] Command line: BOOT_IMAGE=/vmlinuz root=/dev/sda1 console=ttyS0 earlyprintk=serial vsyscall=native rodata=n ftrace_dump_on_oops=orig_cpu oops=panic panic_on_warn=1 nmi_watchdog=panic panic=86400 workqueue.watchdog_thresh=120 [ 0.000000] KERNEL supported cpus: [ 0.000000] Intel GenuineIntel [ 0.000000] AMD AuthenticAMD [ 0.000000] Centaur CentaurHauls [ 0.000000] x86/fpu: xstate_offset[2]: 576, xstate_sizes[2]: 256 [ 0.000000] x86/fpu: Supporting XSAVE feature 0x01: 'x87 floating point registers' [ 0.000000] x86/fpu: Supporting XSAVE feature 0x02: 'SSE registers' [ 0.000000] x86/fpu: Supporting XSAVE feature 0x04: 'AVX registers' [ 0.000000] x86/fpu: Enabled xstate features 0x7, context size is 832 bytes, using 'standard' format. [ 0.000000] x86/fpu: Using 'eager' FPU context switches. [ 0.000000] e820: BIOS-provided physical RAM map: [ 0.000000] BIOS-e820: [mem 0x0000000000000000-0x000000000009fbff] usable [ 0.000000] BIOS-e820: [mem 0x000000000009fc00-0x000000000009ffff] reserved [ 0.000000] BIOS-e820: [mem 0x00000000000f0000-0x00000000000fffff] reserved [ 0.000000] BIOS-e820: [mem 0x0000000000100000-0x00000000bfffcfff] usable [ 0.000000] BIOS-e820: [mem 0x00000000bfffd000-0x00000000bfffffff] reserved [ 0.000000] BIOS-e820: [mem 0x00000000fffbc000-0x00000000ffffffff] reserved [ 0.000000] BIOS-e820: [mem 0x0000000100000000-0x000000021fffffff] usable [ 0.000000] bootconsole [earlyser0] enabled [ 0.000000] NX (Execute Disable) protection: active [ 0.000000] SMBIOS 2.4 present. [ 0.000000] Hypervisor detected: KVM [ 0.000000] e820: last_pfn = 0x220000 max_arch_pfn = 0x400000000 [ 0.000000] x86/PAT: Configuration [0-7]: WB WC UC- UC WB WC UC- WT [ 0.000000] e820: last_pfn = 0xbfffd max_arch_pfn = 0x400000000 [ 0.000000] found SMP MP-table at [mem 0x000f32c0-0x000f32cf] mapped at [ffff8800000f32c0] [ 0.000000] Scanning 1 areas for low memory corruption [ 0.000000] Using GB pages for direct mapping [ 0.000000] ACPI: Early table checksum verification disabled [ 0.000000] ACPI: RSDP 0x00000000000F3090 000014 (v00 Google) [ 0.000000] ACPI: RSDT 0x00000000BFFFDC70 000034 (v01 Google GOOGRSDT 00000001 GOOG 00000001) [ 0.000000] ACPI: FACP 0x00000000BFFFFF00 0000F4 (v02 Google GOOGFACP 00000001 GOOG 00000001) [ 0.000000] ACPI: DSDT 0x00000000BFFFDCB0 0017B2 (v01 Google GOOGDSDT 00000001 GOOG 00000001) [ 0.000000] ACPI: FACS 0x00000000BFFFFEC0 000040 [ 0.000000] ACPI: FACS 0x00000000BFFFFEC0 000040 [ 0.000000] ACPI: SSDT 0x00000000BFFFF590 000930 (v01 Google GOOGSSDT 00000001 GOOG 00000001) [ 0.000000] ACPI: APIC 0x00000000BFFFF4A0 000076 (v01 Google GOOGAPIC 00000001 GOOG 00000001) [ 0.000000] ACPI: WAET 0x00000000BFFFF470 000028 (v01 Google GOOGWAET 00000001 GOOG 00000001) [ 0.000000] kvm-clock: Using msrs 4b564d01 and 4b564d00 [ 0.000000] kvm-clock: cpu 0, msr 2:1fffd001, primary cpu clock [ 0.000000] kvm-clock: using sched offset of 1275134034 cycles [ 0.000000] clocksource: kvm-clock: mask: 0xffffffffffffffff max_cycles: 0x1cd42e4dffb, max_idle_ns: 881590591483 ns [ 0.000000] Zone ranges: [ 0.000000] DMA [mem 0x0000000000001000-0x0000000000ffffff] [ 0.000000] DMA32 [mem 0x0000000001000000-0x00000000ffffffff] [ 0.000000] Normal [mem 0x0000000100000000-0x000000021fffffff] [ 0.000000] Movable zone start for each node [ 0.000000] Early memory node ranges [ 0.000000] node 0: [mem 0x0000000000001000-0x000000000009efff] [ 0.000000] node 0: [mem 0x0000000000100000-0x00000000bfffcfff] [ 0.000000] node 0: [mem 0x0000000100000000-0x000000021fffffff] [ 0.000000] Initmem setup node 0 [mem 0x0000000000001000-0x000000021fffffff] [ 0.000000] kasan: KernelAddressSanitizer initialized [ 0.000000] ACPI: PM-Timer IO Port: 0xb008 [ 0.000000] ACPI: LAPIC_NMI (acpi_id[0xff] dfl dfl lint[0x1]) [ 0.000000] IOAPIC[0]: apic_id 0, version 17, address 0xfec00000, GSI 0-23 [ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 5 global_irq 5 high level) [ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 9 global_irq 9 high level) [ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 10 global_irq 10 high level) [ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 11 global_irq 11 high level) [ 0.000000] Using ACPI (MADT) for SMP configuration information [ 0.000000] smpboot: Allowing 2 CPUs, 0 hotplug CPUs [ 0.000000] PM: Registered nosave memory: [mem 0x00000000-0x00000fff] [ 0.000000] PM: Registered nosave memory: [mem 0x0009f000-0x0009ffff] [ 0.000000] PM: Registered nosave memory: [mem 0x000a0000-0x000effff] [ 0.000000] PM: Registered nosave memory: [mem 0x000f0000-0x000fffff] [ 0.000000] PM: Registered nosave memory: [mem 0xbfffd000-0xbfffffff] [ 0.000000] PM: Registered nosave memory: [mem 0xc0000000-0xfffbbfff] [ 0.000000] PM: Registered nosave memory: [mem 0xfffbc000-0xffffffff] [ 0.000000] e820: [mem 0xc0000000-0xfffbbfff] available for PCI devices [ 0.000000] Booting paravirtualized kernel on KVM [ 0.000000] clocksource: refined-jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604462750000 ns [ 0.000000] setup_percpu: NR_CPUS:64 nr_cpumask_bits:64 nr_cpu_ids:2 nr_node_ids:1 [ 0.000000] PERCPU: Embedded 42 pages/cpu @ffff8801db200000 s132680 r8192 d31160 u1048576 [ 0.000000] Built 1 zonelists in Zone order, mobility grouping on. Total pages: 1935238 [ 0.000000] Kernel command line: BOOT_IMAGE=/vmlinuz root=/dev/sda1 console=ttyS0 earlyprintk=serial vsyscall=native rodata=n ftrace_dump_on_oops=orig_cpu oops=panic panic_on_warn=1 nmi_watchdog=panic panic=86400 workqueue.watchdog_thresh=120 [ 0.000000] PID hash table entries: 4096 (order: 3, 32768 bytes) [ 0.000000] Dentry cache hash table entries: 1048576 (order: 11, 8388608 bytes) [ 0.000000] Inode-cache hash table entries: 524288 (order: 10, 4194304 bytes) [ 0.000000] ================================================================== [ 0.000000] BUG: KASAN: stack-out-of-bounds in reserve_bootmem_region+0xdf/0x130 [ 0.000000] Write of size 8 at addr ffffea0000047ce0 by task swapper/0 [ 0.000000] [ 0.000000] CPU: 0 PID: 0 Comm: swapper Not tainted 4.4.108-g55b3b8c #7 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 73177733841ec5b3 ffffffff84207ce8 ffffffff81d02e5d [ 0.000000] ffffea0000047ce0 ffffea0000047ce0 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d20 ffffffff814fb329 ffffea0000047ce0 [ 0.000000] Call Trace: [ 0.000000] [] dump_stack+0xc1/0x124 [ 0.000000] [] print_address_description+0x189/0x260 [ 0.000000] [] kasan_report+0x285/0x370 [ 0.000000] [] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] free_all_bootmem+0xf2/0x24d [ 0.000000] [] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [] ? dmar_table_detect+0x60/0x60 [ 0.000000] [] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [] mem_init+0x13/0x74 [ 0.000000] [] start_kernel+0x31d/0x6e9 [ 0.000000] [] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [] x86_64_start_kernel+0x140/0x163 [ 0.000000] [ 0.000000] [ 0.000000] Memory state around the buggy address: [ 0.000000] ffffea0000047b80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ffffea0000047c00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] >ffffea0000047c80: 00 00 00 00 00 00 f1 f1 f1 f1 00 00 f2 f2 00 00 [ 0.000000] ^ [ 0.000000] ffffea0000047d00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ffffea0000047d80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ================================================================== [ 0.000000] Disabling lock debugging due to kernel taint [ 0.000000] Kernel panic - not syncing: panic_on_warn set ... [ 0.000000] [ 0.000000] CPU: 0 PID: 0 Comm: swapper Tainted: G B 4.4.108-g55b3b8c #7 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 73177733841ec5b3 ffffffff84207c40 ffffffff81d02e5d [ 0.000000] ffffffff83fb34b5 ffffffff84207d18 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d08 ffffffff81417caa 0000000041b58ab3 [ 0.000000] Call Trace: [ 0.000000] [] dump_stack+0xc1/0x124 [ 0.000000] [] panic+0x1aa/0x388 [ 0.000000] [] ? percpu_up_read.constprop.45+0xe1/0xe1 [ 0.000000] [] kasan_end_report+0x50/0x50 [ 0.000000] [] kasan_report+0x15c/0x370 [ 0.000000] [] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] free_all_bootmem+0xf2/0x24d [ 0.000000] [] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [] ? dmar_table_detect+0x60/0x60 [ 0.000000] [] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [] mem_init+0x13/0x74 [ 0.000000] [] start_kernel+0x31d/0x6e9 [ 0.000000] [] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [] x86_64_start_kernel+0x140/0x163 [ 0.000000] Rebooting in 86400 seconds.. [ 0.000000] ACPI MEMORY or I/O RESET_REG. SeaBIOS (version 1.8.2-20171012_061934-google) Total RAM Size = 0x00000001e0000000 = 7680 MiB CPUs found: 2 Max CPUs supported: 2 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 0x000f3050: PCHS=0/0/0 translation=lba LCHS=520/128/63 s=4194304 Booting from Hard Disk 0... early console in decompress_kernel input_data: 0x00000000039be26e input_len: 0x0000000001424e03 output: 0x0000000001000000 output_len: 0x0000000003dcea40 run_size: 0x0000000005504000 Decompressing Linux...