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: f6994c63d8e27787924f70049e1edaf1dde02a155b3ccd0d2fff932f2e80bb6b, active connections: 1). [ 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 #8 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 5e2d8c996f34db19 ffffffff84207c40 ffffffff81d02e5d [ 0.000000] ffffffff83fb34b5 ffffffff84207d18 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d08 ffffffff81417caa 0000000041b58ab3 [ 0.000000] Call Trace: [ 0.000000] [<ffffffff81d02e5d>] dump_stack+0xc1/0x124 [ 0.000000] [<ffffffff81417caa>] panic+0x1aa/0x388 [ 0.000000] [<ffffffff81417b00>] ? percpu_up_read.constprop.45+0xe1/0xe1 [ 0.000000] [<ffffffff814fb180>] kasan_end_report+0x50/0x50 [ 0.000000] [<ffffffff814fb5fc>] kasan_report+0x15c/0x370 [ 0.000000] [<ffffffff848f9f6b>] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [<ffffffff814fb927>] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [<ffffffff848f9f6b>] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [<ffffffff8486cdb9>] free_all_bootmem+0xf2/0x24d [ 0.000000] [<ffffffff8486ccc7>] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [<ffffffff848a16c7>] ? dmar_table_detect+0x60/0x60 [ 0.000000] [<ffffffff83762050>] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [<ffffffff8484fa52>] mem_init+0x13/0x74 [ 0.000000] [<ffffffff8481b475>] start_kernel+0x31d/0x6e9 [ 0.000000] [<ffffffff8481b158>] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [<ffffffff8481a120>] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [<ffffffff8481a120>] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [<ffffffff8481a312>] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [<ffffffff8481a454>] 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) ) #8 SMP PREEMPT Sun Dec 31 11:52:08 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 1139994646 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 #8 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 6041bc4371490ac3 ffffffff84207ce8 ffffffff81d02e5d [ 0.000000] ffffea0000047ce0 ffffea0000047ce0 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d20 ffffffff814fb329 ffffea0000047ce0 [ 0.000000] Call Trace: [ 0.000000] [<ffffffff81d02e5d>] dump_stack+0xc1/0x124 [ 0.000000] [<ffffffff814fb329>] print_address_description+0x189/0x260 [ 0.000000] [<ffffffff814fb725>] kasan_report+0x285/0x370 [ 0.000000] [<ffffffff848f9f6b>] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [<ffffffff814fb927>] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [<ffffffff848f9f6b>] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [<ffffffff8486cdb9>] free_all_bootmem+0xf2/0x24d [ 0.000000] [<ffffffff8486ccc7>] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [<ffffffff848a16c7>] ? dmar_table_detect+0x60/0x60 [ 0.000000] [<ffffffff83762050>] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [<ffffffff8484fa52>] mem_init+0x13/0x74 [ 0.000000] [<ffffffff8481b475>] start_kernel+0x31d/0x6e9 [ 0.000000] [<ffffffff8481b158>] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [<ffffffff8481a120>] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [<ffffffff8481a120>] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [<ffffffff8481a312>] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [<ffffffff8481a454>] 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 #8 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 6041bc4371490ac3 ffffffff84207c40 ffffffff81d02e5d [ 0.000000] ffffffff83fb34b5 ffffffff84207d18 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d08 ffffffff81417caa 0000000041b58ab3 [ 0.000000] Call Trace: [ 0.000000] [<ffffffff81d02e5d>] dump_stack+0xc1/0x124 [ 0.000000] [<ffffffff81417caa>] panic+0x1aa/0x388 [ 0.000000] [<ffffffff81417b00>] ? percpu_up_read.constprop.45+0xe1/0xe1 [ 0.000000] [<ffffffff814fb180>] kasan_end_report+0x50/0x50 [ 0.000000] [<ffffffff814fb5fc>] kasan_report+0x15c/0x370 [ 0.000000] [<ffffffff848f9f6b>] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [<ffffffff814fb927>] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [<ffffffff848f9f6b>] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [<ffffffff8486cdb9>] free_all_bootmem+0xf2/0x24d [ 0.000000] [<ffffffff8486ccc7>] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [<ffffffff848a16c7>] ? dmar_table_detect+0x60/0x60 [ 0.000000] [<ffffffff83762050>] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [<ffffffff8484fa52>] mem_init+0x13/0x74 [ 0.000000] [<ffffffff8481b475>] start_kernel+0x31d/0x6e9 [ 0.000000] [<ffffffff8481b158>] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [<ffffffff8481a120>] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [<ffffffff8481a120>] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [<ffffffff8481a312>] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [<ffffffff8481a454>] 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) ) #8 SMP PREEMPT Sun Dec 31 11:52:08 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 1128392063 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 #8 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 5ed8ed516fe03bd1 ffffffff84207ce8 ffffffff81d02e5d [ 0.000000] ffffea0000047ce0 ffffea0000047ce0 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d20 ffffffff814fb329 ffffea0000047ce0 [ 0.000000] Call Trace: [ 0.000000] [<ffffffff81d02e5d>] dump_stack+0xc1/0x124 [ 0.000000] [<ffffffff814fb329>] print_address_description+0x189/0x260 [ 0.000000] [<ffffffff814fb725>] kasan_report+0x285/0x370 [ 0.000000] [<ffffffff848f9f6b>] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [<ffffffff814fb927>] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [<ffffffff848f9f6b>] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [<ffffffff8486cdb9>] free_all_bootmem+0xf2/0x24d [ 0.000000] [<ffffffff8486ccc7>] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [<ffffffff848a16c7>] ? dmar_table_detect+0x60/0x60 [ 0.000000] [<ffffffff83762050>] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [<ffffffff8484fa52>] mem_init+0x13/0x74 [ 0.000000] [<ffffffff8481b475>] start_kernel+0x31d/0x6e9 [ 0.000000] [<ffffffff8481b158>] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [<ffffffff8481a120>] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [<ffffffff8481a120>] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [<ffffffff8481a312>] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [<ffffffff8481a454>] 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 #8 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 5ed8ed516fe03bd1 ffffffff84207c40 ffffffff81d02e5d [ 0.000000] ffffffff83fb34b5 ffffffff84207d18 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d08 ffffffff81417caa 0000000041b58ab3 [ 0.000000] Call Trace: [ 0.000000] [<ffffffff81d02e5d>] dump_stack+0xc1/0x124 [ 0.000000] [<ffffffff81417caa>] panic+0x1aa/0x388 [ 0.000000] [<ffffffff81417b00>] ? percpu_up_read.constprop.45+0xe1/0xe1 [ 0.000000] [<ffffffff814fb180>] kasan_end_report+0x50/0x50 [ 0.000000] [<ffffffff814fb5fc>] kasan_report+0x15c/0x370 [ 0.000000] [<ffffffff848f9f6b>] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [<ffffffff814fb927>] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [<ffffffff848f9f6b>] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [<ffffffff8486cdb9>] free_all_bootmem+0xf2/0x24d [ 0.000000] [<ffffffff8486ccc7>] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [<ffffffff848a16c7>] ? dmar_table_detect+0x60/0x60 [ 0.000000] [<ffffffff83762050>] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [<ffffffff8484fa52>] mem_init+0x13/0x74 [ 0.000000] [<ffffffff8481b475>] start_kernel+0x31d/0x6e9 [ 0.000000] [<ffffffff8481b158>] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [<ffffffff8481a120>] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [<ffffffff8481a120>] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [<ffffffff8481a312>] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [<ffffffff8481a454>] 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) ) #8 SMP PREEMPT Sun Dec 31 11:52:08 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 1170044859 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 #8 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 648af27a759240fa ffffffff84207ce8 ffffffff81d02e5d [ 0.000000] ffffea0000047ce0 ffffea0000047ce0 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d20 ffffffff814fb329 ffffea0000047ce0 [ 0.000000] Call Trace: [ 0.000000] [<ffffffff81d02e5d>] dump_stack+0xc1/0x124 [ 0.000000] [<ffffffff814fb329>] print_address_description+0x189/0x260 [ 0.000000] [<ffffffff814fb725>] kasan_report+0x285/0x370 [ 0.000000] [<ffffffff848f9f6b>] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [<ffffffff814fb927>] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [<ffffffff848f9f6b>] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [<ffffffff8486cdb9>] free_all_bootmem+0xf2/0x24d [ 0.000000] [<ffffffff8486ccc7>] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [<ffffffff848a16c7>] ? dmar_table_detect+0x60/0x60 [ 0.000000] [<ffffffff83762050>] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [<ffffffff8484fa52>] mem_init+0x13/0x74 [ 0.000000] [<ffffffff8481b475>] start_kernel+0x31d/0x6e9 [ 0.000000] [<ffffffff8481b158>] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [<ffffffff8481a120>] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [<ffffffff8481a120>] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [<ffffffff8481a312>] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [<ffffffff8481a454>] 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 #8 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 648af27a759240fa ffffffff84207c40 ffffffff81d02e5d [ 0.000000] ffffffff83fb34b5 ffffffff84207d18 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d08 ffffffff81417caa 0000000041b58ab3 [ 0.000000] Call Trace: [ 0.000000] [<ffffffff81d02e5d>] dump_stack+0xc1/0x124 [ 0.000000] [<ffffffff81417caa>] panic+0x1aa/0x388 [ 0.000000] [<ffffffff81417b00>] ? percpu_up_read.constprop.45+0xe1/0xe1 [ 0.000000] [<ffffffff814fb180>] kasan_end_report+0x50/0x50 [ 0.000000] [<ffffffff814fb5fc>] kasan_report+0x15c/0x370 [ 0.000000] [<ffffffff848f9f6b>] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [<ffffffff814fb927>] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [<ffffffff848f9f6b>] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [<ffffffff8486cdb9>] free_all_bootmem+0xf2/0x24d [ 0.000000] [<ffffffff8486ccc7>] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [<ffffffff848a16c7>] ? dmar_table_detect+0x60/0x60 [ 0.000000] [<ffffffff83762050>] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [<ffffffff8484fa52>] mem_init+0x13/0x74 [ 0.000000] [<ffffffff8481b475>] start_kernel+0x31d/0x6e9 [ 0.000000] [<ffffffff8481b158>] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [<ffffffff8481a120>] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [<ffffffff8481a120>] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [<ffffffff8481a312>] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [<ffffffff8481a454>] 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) ) #8 SMP PREEMPT Sun Dec 31 11:52:08 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 1198684941 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 #8 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 6883c1bb798b103b ffffffff84207ce8 ffffffff81d02e5d [ 0.000000] ffffea0000047ce0 ffffea0000047ce0 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d20 ffffffff814fb329 ffffea0000047ce0 [ 0.000000] Call Trace: [ 0.000000] [<ffffffff81d02e5d>] dump_stack+0xc1/0x124 [ 0.000000] [<ffffffff814fb329>] print_address_description+0x189/0x260 [ 0.000000] [<ffffffff814fb725>] kasan_report+0x285/0x370 [ 0.000000] [<ffffffff848f9f6b>] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [<ffffffff814fb927>] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [<ffffffff848f9f6b>] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [<ffffffff8486cdb9>] free_all_bootmem+0xf2/0x24d [ 0.000000] [<ffffffff8486ccc7>] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [<ffffffff848a16c7>] ? dmar_table_detect+0x60/0x60 [ 0.000000] [<ffffffff83762050>] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [<ffffffff8484fa52>] mem_init+0x13/0x74 [ 0.000000] [<ffffffff8481b475>] start_kernel+0x31d/0x6e9 [ 0.000000] [<ffffffff8481b158>] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [<ffffffff8481a120>] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [<ffffffff8481a120>] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [<ffffffff8481a312>] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [<ffffffff8481a454>] 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 #8 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 6883c1bb798b103b ffffffff84207c40 ffffffff81d02e5d [ 0.000000] ffffffff83fb34b5 ffffffff84207d18 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d08 ffffffff81417caa 0000000041b58ab3 [ 0.000000] Call Trace: [ 0.000000] [<ffffffff81d02e5d>] dump_stack+0xc1/0x124 [ 0.000000] [<ffffffff81417caa>] panic+0x1aa/0x388 [ 0.000000] [<ffffffff81417b00>] ? percpu_up_read.constprop.45+0xe1/0xe1 [ 0.000000] [<ffffffff814fb180>] kasan_end_report+0x50/0x50 [ 0.000000] [<ffffffff814fb5fc>] kasan_report+0x15c/0x370 [ 0.000000] [<ffffffff848f9f6b>] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [<ffffffff814fb927>] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [<ffffffff848f9f6b>] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [<ffffffff8486cdb9>] free_all_bootmem+0xf2/0x24d [ 0.000000] [<ffffffff8486ccc7>] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [<ffffffff848a16c7>] ? dmar_table_detect+0x60/0x60 [ 0.000000] [<ffffffff83762050>] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [<ffffffff8484fa52>] mem_init+0x13/0x74 [ 0.000000] [<ffffffff8481b475>] start_kernel+0x31d/0x6e9 [ 0.000000] [<ffffffff8481b158>] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [<ffffffff8481a120>] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [<ffffffff8481a120>] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [<ffffffff8481a312>] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [<ffffffff8481a454>] 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) ) #8 SMP PREEMPT Sun Dec 31 11:52:08 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 1221001462 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 #8 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 6b8052cd7c87a14d ffffffff84207ce8 ffffffff81d02e5d [ 0.000000] ffffea0000047ce0 ffffea0000047ce0 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d20 ffffffff814fb329 ffffea0000047ce0 [ 0.000000] Call Trace: [ 0.000000] [<ffffffff81d02e5d>] dump_stack+0xc1/0x124 [ 0.000000] [<ffffffff814fb329>] print_address_description+0x189/0x260 [ 0.000000] [<ffffffff814fb725>] kasan_report+0x285/0x370 [ 0.000000] [<ffffffff848f9f6b>] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [<ffffffff814fb927>] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [<ffffffff848f9f6b>] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [<ffffffff8486cdb9>] free_all_bootmem+0xf2/0x24d [ 0.000000] [<ffffffff8486ccc7>] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [<ffffffff848a16c7>] ? dmar_table_detect+0x60/0x60 [ 0.000000] [<ffffffff83762050>] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [<ffffffff8484fa52>] mem_init+0x13/0x74 [ 0.000000] [<ffffffff8481b475>] start_kernel+0x31d/0x6e9 [ 0.000000] [<ffffffff8481b158>] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [<ffffffff8481a120>] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [<ffffffff8481a120>] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [<ffffffff8481a312>] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [<ffffffff8481a454>] 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 #8 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 6b8052cd7c87a14d ffffffff84207c40 ffffffff81d02e5d [ 0.000000] ffffffff83fb34b5 ffffffff84207d18 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d08 ffffffff81417caa 0000000041b58ab3 [ 0.000000] Call Trace: [ 0.000000] [<ffffffff81d02e5d>] dump_stack+0xc1/0x124 [ 0.000000] [<ffffffff81417caa>] panic+0x1aa/0x388 [ 0.000000] [<ffffffff81417b00>] ? percpu_up_read.constprop.45+0xe1/0xe1 [ 0.000000] [<ffffffff814fb180>] kasan_end_report+0x50/0x50 [ 0.000000] [<ffffffff814fb5fc>] kasan_report+0x15c/0x370 [ 0.000000] [<ffffffff848f9f6b>] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [<ffffffff814fb927>] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [<ffffffff848f9f6b>] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [<ffffffff8486cdb9>] free_all_bootmem+0xf2/0x24d [ 0.000000] [<ffffffff8486ccc7>] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [<ffffffff848a16c7>] ? dmar_table_detect+0x60/0x60 [ 0.000000] [<ffffffff83762050>] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [<ffffffff8484fa52>] mem_init+0x13/0x74 [ 0.000000] [<ffffffff8481b475>] start_kernel+0x31d/0x6e9 [ 0.000000] [<ffffffff8481b158>] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [<ffffffff8481a120>] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [<ffffffff8481a120>] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [<ffffffff8481a312>] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [<ffffffff8481a454>] 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) ) #8 SMP PREEMPT Sun Dec 31 11:52:08 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 1193601261 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 #8 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 67eb12ef78f2616f ffffffff84207ce8 ffffffff81d02e5d [ 0.000000] ffffea0000047ce0 ffffea0000047ce0 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d20 ffffffff814fb329 ffffea0000047ce0 [ 0.000000] Call Trace: [ 0.000000] [<ffffffff81d02e5d>] dump_stack+0xc1/0x124 [ 0.000000] [<ffffffff814fb329>] print_address_description+0x189/0x260 [ 0.000000] [<ffffffff814fb725>] kasan_report+0x285/0x370 [ 0.000000] [<ffffffff848f9f6b>] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [<ffffffff814fb927>] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [<ffffffff848f9f6b>] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [<ffffffff8486cdb9>] free_all_bootmem+0xf2/0x24d [ 0.000000] [<ffffffff8486ccc7>] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [<ffffffff848a16c7>] ? dmar_table_detect+0x60/0x60 [ 0.000000] [<ffffffff83762050>] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [<ffffffff8484fa52>] mem_init+0x13/0x74 [ 0.000000] [<ffffffff8481b475>] start_kernel+0x31d/0x6e9 [ 0.000000] [<ffffffff8481b158>] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [<ffffffff8481a120>] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [<ffffffff8481a120>] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [<ffffffff8481a312>] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [<ffffffff8481a454>] 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 #8 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 67eb12ef78f2616f ffffffff84207c40 ffffffff81d02e5d [ 0.000000] ffffffff83fb34b5 ffffffff84207d18 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d08 ffffffff81417caa 0000000041b58ab3 [ 0.000000] Call Trace: [ 0.000000] [<ffffffff81d02e5d>] dump_stack+0xc1/0x124 [ 0.000000] [<ffffffff81417caa>] panic+0x1aa/0x388 [ 0.000000] [<ffffffff81417b00>] ? percpu_up_read.constprop.45+0xe1/0xe1 [ 0.000000] [<ffffffff814fb180>] kasan_end_report+0x50/0x50 [ 0.000000] [<ffffffff814fb5fc>] kasan_report+0x15c/0x370 [ 0.000000] [<ffffffff848f9f6b>] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [<ffffffff814fb927>] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [<ffffffff848f9f6b>] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [<ffffffff8486cdb9>] free_all_bootmem+0xf2/0x24d [ 0.000000] [<ffffffff8486ccc7>] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [<ffffffff848a16c7>] ? dmar_table_detect+0x60/0x60 [ 0.000000] [<ffffffff83762050>] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [<ffffffff8484fa52>] mem_init+0x13/0x74 [ 0.000000] [<ffffffff8481b475>] start_kernel+0x31d/0x6e9 [ 0.000000] [<ffffffff8481b158>] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [<ffffffff8481a120>] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [<ffffffff8481a120>] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [<ffffffff8481a312>] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [<ffffffff8481a454>] 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) ) #8 SMP PREEMPT Sun Dec 31 11:52:08 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 1126184490 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 #8 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 5e9b7a3d6fa2c8bd ffffffff84207ce8 ffffffff81d02e5d [ 0.000000] ffffea0000047ce0 ffffea0000047ce0 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d20 ffffffff814fb329 ffffea0000047ce0 [ 0.000000] Call Trace: [ 0.000000] [<ffffffff81d02e5d>] dump_stack+0xc1/0x124 [ 0.000000] [<ffffffff814fb329>] print_address_description+0x189/0x260 [ 0.000000] [<ffffffff814fb725>] kasan_report+0x285/0x370 [ 0.000000] [<ffffffff848f9f6b>] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [<ffffffff814fb927>] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [<ffffffff848f9f6b>] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [<ffffffff8486cdb9>] free_all_bootmem+0xf2/0x24d [ 0.000000] [<ffffffff8486ccc7>] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [<ffffffff848a16c7>] ? dmar_table_detect+0x60/0x60 [ 0.000000] [<ffffffff83762050>] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [<ffffffff8484fa52>] mem_init+0x13/0x74 [ 0.000000] [<ffffffff8481b475>] start_kernel+0x31d/0x6e9 [ 0.000000] [<ffffffff8481b158>] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [<ffffffff8481a120>] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [<ffffffff8481a120>] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [<ffffffff8481a312>] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [<ffffffff8481a454>] 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 #8 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 5e9b7a3d6fa2c8bd ffffffff84207c40 ffffffff81d02e5d [ 0.000000] ffffffff83fb34b5 ffffffff84207d18 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d08 ffffffff81417caa 0000000041b58ab3 [ 0.000000] Call Trace: [ 0.000000] [<ffffffff81d02e5d>] dump_stack+0xc1/0x124 [ 0.000000] [<ffffffff81417caa>] panic+0x1aa/0x388 [ 0.000000] [<ffffffff81417b00>] ? percpu_up_read.constprop.45+0xe1/0xe1 [ 0.000000] [<ffffffff814fb180>] kasan_end_report+0x50/0x50 [ 0.000000] [<ffffffff814fb5fc>] kasan_report+0x15c/0x370 [ 0.000000] [<ffffffff848f9f6b>] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [<ffffffff814fb927>] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [<ffffffff848f9f6b>] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [<ffffffff8486cdb9>] free_all_bootmem+0xf2/0x24d [ 0.000000] [<ffffffff8486ccc7>] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [<ffffffff848a16c7>] ? dmar_table_detect+0x60/0x60 [ 0.000000] [<ffffffff83762050>] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [<ffffffff8484fa52>] mem_init+0x13/0x74 [ 0.000000] [<ffffffff8481b475>] start_kernel+0x31d/0x6e9 [ 0.000000] [<ffffffff8481b158>] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [<ffffffff8481a120>] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [<ffffffff8481a120>] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [<ffffffff8481a312>] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [<ffffffff8481a454>] 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) ) #8 SMP PREEMPT Sun Dec 31 11:52:08 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 1139322971 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 #8 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 6061ff7971694df9 ffffffff84207ce8 ffffffff81d02e5d [ 0.000000] ffffea0000047ce0 ffffea0000047ce0 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d20 ffffffff814fb329 ffffea0000047ce0 [ 0.000000] Call Trace: [ 0.000000] [<ffffffff81d02e5d>] dump_stack+0xc1/0x124 [ 0.000000] [<ffffffff814fb329>] print_address_description+0x189/0x260 [ 0.000000] [<ffffffff814fb725>] kasan_report+0x285/0x370 [ 0.000000] [<ffffffff848f9f6b>] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [<ffffffff814fb927>] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [<ffffffff848f9f6b>] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [<ffffffff8486cdb9>] free_all_bootmem+0xf2/0x24d [ 0.000000] [<ffffffff8486ccc7>] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [<ffffffff848a16c7>] ? dmar_table_detect+0x60/0x60 [ 0.000000] [<ffffffff83762050>] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [<ffffffff8484fa52>] mem_init+0x13/0x74 [ 0.000000] [<ffffffff8481b475>] start_kernel+0x31d/0x6e9 [ 0.000000] [<ffffffff8481b158>] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [<ffffffff8481a120>] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [<ffffffff8481a120>] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [<ffffffff8481a312>] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [<ffffffff8481a454>] 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 #8 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 6061ff7971694df9 ffffffff84207c40 ffffffff81d02e5d [ 0.000000] ffffffff83fb34b5 ffffffff84207d18 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d08 ffffffff81417caa 0000000041b58ab3 [ 0.000000] Call Trace: [ 0.000000] [<ffffffff81d02e5d>] dump_stack+0xc1/0x124 [ 0.000000] [<ffffffff81417caa>] panic+0x1aa/0x388 [ 0.000000] [<ffffffff81417b00>] ? percpu_up_read.constprop.45+0xe1/0xe1 [ 0.000000] [<ffffffff814fb180>] kasan_end_report+0x50/0x50 [ 0.000000] [<ffffffff814fb5fc>] kasan_report+0x15c/0x370 [ 0.000000] [<ffffffff848f9f6b>] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [<ffffffff814fb927>] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [<ffffffff848f9f6b>] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [<ffffffff8486cdb9>] free_all_bootmem+0xf2/0x24d [ 0.000000] [<ffffffff8486ccc7>] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [<ffffffff848a16c7>] ? dmar_table_detect+0x60/0x60 [ 0.000000] [<ffffffff83762050>] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [<ffffffff8484fa52>] mem_init+0x13/0x74 [ 0.000000] [<ffffffff8481b475>] start_kernel+0x31d/0x6e9 [ 0.000000] [<ffffffff8481b158>] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [<ffffffff8481a120>] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [<ffffffff8481a120>] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [<ffffffff8481a312>] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [<ffffffff8481a454>] 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) ) #8 SMP PREEMPT Sun Dec 31 11:52:08 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 1129754912 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 #8 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 5f26b34a702e01ca ffffffff84207ce8 ffffffff81d02e5d [ 0.000000] ffffea0000047ce0 ffffea0000047ce0 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d20 ffffffff814fb329 ffffea0000047ce0 [ 0.000000] Call Trace: [ 0.000000] [<ffffffff81d02e5d>] dump_stack+0xc1/0x124 [ 0.000000] [<ffffffff814fb329>] print_address_description+0x189/0x260 [ 0.000000] [<ffffffff814fb725>] kasan_report+0x285/0x370 [ 0.000000] [<ffffffff848f9f6b>] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [<ffffffff814fb927>] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [<ffffffff848f9f6b>] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [<ffffffff8486cdb9>] free_all_bootmem+0xf2/0x24d [ 0.000000] [<ffffffff8486ccc7>] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [<ffffffff848a16c7>] ? dmar_table_detect+0x60/0x60 [ 0.000000] [<ffffffff83762050>] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [<ffffffff8484fa52>] mem_init+0x13/0x74 [ 0.000000] [<ffffffff8481b475>] start_kernel+0x31d/0x6e9 [ 0.000000] [<ffffffff8481b158>] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [<ffffffff8481a120>] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [<ffffffff8481a120>] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [<ffffffff8481a312>] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [<ffffffff8481a454>] 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 #8 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 5f26b34a702e01ca ffffffff84207c40 ffffffff81d02e5d [ 0.000000] ffffffff83fb34b5 ffffffff84207d18 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d08 ffffffff81417caa 0000000041b58ab3 [ 0.000000] Call Trace: [ 0.000000] [<ffffffff81d02e5d>] dump_stack+0xc1/0x124 [ 0.000000] [<ffffffff81417caa>] panic+0x1aa/0x388 [ 0.000000] [<ffffffff81417b00>] ? percpu_up_read.constprop.45+0xe1/0xe1 [ 0.000000] [<ffffffff814fb180>] kasan_end_report+0x50/0x50 [ 0.000000] [<ffffffff814fb5fc>] kasan_report+0x15c/0x370 [ 0.000000] [<ffffffff848f9f6b>] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [<ffffffff814fb927>] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [<ffffffff848f9f6b>] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [<ffffffff8486cdb9>] free_all_bootmem+0xf2/0x24d [ 0.000000] [<ffffffff8486ccc7>] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [<ffffffff848a16c7>] ? dmar_table_detect+0x60/0x60 [ 0.000000] [<ffffffff83762050>] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [<ffffffff8484fa52>] mem_init+0x13/0x74 [ 0.000000] [<ffffffff8481b475>] start_kernel+0x31d/0x6e9 [ 0.000000] [<ffffffff8481b158>] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [<ffffffff8481a120>] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [<ffffffff8481a120>] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [<ffffffff8481a312>] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [<ffffffff8481a454>] 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) ) #8 SMP PREEMPT Sun Dec 31 11:52:08 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 1137190290 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 #8 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 60146205711bb085 ffffffff84207ce8 ffffffff81d02e5d [ 0.000000] ffffea0000047ce0 ffffea0000047ce0 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d20 ffffffff814fb329 ffffea0000047ce0 [ 0.000000] Call Trace: [ 0.000000] [<ffffffff81d02e5d>] dump_stack+0xc1/0x124 [ 0.000000] [<ffffffff814fb329>] print_address_description+0x189/0x260 [ 0.000000] [<ffffffff814fb725>] kasan_report+0x285/0x370 [ 0.000000] [<ffffffff848f9f6b>] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [<ffffffff814fb927>] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [<ffffffff848f9f6b>] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [<ffffffff8486cdb9>] free_all_bootmem+0xf2/0x24d [ 0.000000] [<ffffffff8486ccc7>] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [<ffffffff848a16c7>] ? dmar_table_detect+0x60/0x60 [ 0.000000] [<ffffffff83762050>] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [<ffffffff8484fa52>] mem_init+0x13/0x74 [ 0.000000] [<ffffffff8481b475>] start_kernel+0x31d/0x6e9 [ 0.000000] [<ffffffff8481b158>] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [<ffffffff8481a120>] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [<ffffffff8481a120>] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [<ffffffff8481a312>] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [<ffffffff8481a454>] 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 #8 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 60146205711bb085 ffffffff84207c40 ffffffff81d02e5d [ 0.000000] ffffffff83fb34b5 ffffffff84207d18 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d08 ffffffff81417caa 0000000041b58ab3 [ 0.000000] Call Trace: [ 0.000000] [<ffffffff81d02e5d>] dump_stack+0xc1/0x124 [ 0.000000] [<ffffffff81417caa>] panic+0x1aa/0x388 [ 0.000000] [<ffffffff81417b00>] ? percpu_up_read.constprop.45+0xe1/0xe1 [ 0.000000] [<ffffffff814fb180>] kasan_end_report+0x50/0x50 [ 0.000000] [<ffffffff814fb5fc>] kasan_report+0x15c/0x370 [ 0.000000] [<ffffffff848f9f6b>] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [<ffffffff814fb927>] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [<ffffffff848f9f6b>] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [<ffffffff8486cdb9>] free_all_bootmem+0xf2/0x24d [ 0.000000] [<ffffffff8486ccc7>] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [<ffffffff848a16c7>] ? dmar_table_detect+0x60/0x60 [ 0.000000] [<ffffffff83762050>] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [<ffffffff8484fa52>] mem_init+0x13/0x74 [ 0.000000] [<ffffffff8481b475>] start_kernel+0x31d/0x6e9 [ 0.000000] [<ffffffff8481b158>] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [<ffffffff8481a120>] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [<ffffffff8481a120>] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [<ffffffff8481a312>] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [<ffffffff8481a454>] 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) ) #8 SMP PREEMPT Sun Dec 31 11:52:08 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 1128723731 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 #8 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 5ee9a2816ff0f101 ffffffff84207ce8 ffffffff81d02e5d [ 0.000000] ffffea0000047ce0 ffffea0000047ce0 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d20 ffffffff814fb329 ffffea0000047ce0 [ 0.000000] Call Trace: [ 0.000000] [<ffffffff81d02e5d>] dump_stack+0xc1/0x124 [ 0.000000] [<ffffffff814fb329>] print_address_description+0x189/0x260 [ 0.000000] [<ffffffff814fb725>] kasan_report+0x285/0x370 [ 0.000000] [<ffffffff848f9f6b>] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [<ffffffff814fb927>] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [<ffffffff848f9f6b>] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [<ffffffff8486cdb9>] free_all_bootmem+0xf2/0x24d [ 0.000000] [<ffffffff8486ccc7>] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [<ffffffff848a16c7>] ? dmar_table_detect+0x60/0x60 [ 0.000000] [<ffffffff83762050>] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [<ffffffff8484fa52>] mem_init+0x13/0x74 [ 0.000000] [<ffffffff8481b475>] start_kernel+0x31d/0x6e9 [ 0.000000] [<ffffffff8481b158>] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [<ffffffff8481a120>] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [<ffffffff8481a120>] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [<ffffffff8481a312>] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [<ffffffff8481a454>] 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 #8 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 5ee9a2816ff0f101 ffffffff84207c40 ffffffff81d02e5d [ 0.000000] ffffffff83fb34b5 ffffffff84207d18 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d08 ffffffff81417caa 0000000041b58ab3 [ 0.000000] Call Trace: [ 0.000000] [<ffffffff81d02e5d>] dump_stack+0xc1/0x124 [ 0.000000] [<ffffffff81417caa>] panic+0x1aa/0x388 [ 0.000000] [<ffffffff81417b00>] ? percpu_up_read.constprop.45+0xe1/0xe1 [ 0.000000] [<ffffffff814fb180>] kasan_end_report+0x50/0x50 [ 0.000000] [<ffffffff814fb5fc>] kasan_report+0x15c/0x370 [ 0.000000] [<ffffffff848f9f6b>] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [<ffffffff814fb927>] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [<ffffffff848f9f6b>] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [<ffffffff8486cdb9>] free_all_bootmem+0xf2/0x24d [ 0.000000] [<ffffffff8486ccc7>] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [<ffffffff848a16c7>] ? dmar_table_detect+0x60/0x60 [ 0.000000] [<ffffffff83762050>] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [<ffffffff8484fa52>] mem_init+0x13/0x74 [ 0.000000] [<ffffffff8481b475>] start_kernel+0x31d/0x6e9 [ 0.000000] [<ffffffff8481b158>] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [<ffffffff8481a120>] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [<ffffffff8481a120>] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [<ffffffff8481a312>] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [<ffffffff8481a454>] x86_64_start_kernel+0x140/0x163 [ 0.000000] Rebooting in 86400 seconds.. [ 0.000000] ACPI MEMORY or I/O RESET_REG. [ 0.000000] ACPI 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) ) #8 SMP PREEMPT Sun Dec 31 11:52:08 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 1258261212 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 #8 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 708f20fa81966f7a ffffffff84207ce8 ffffffff81d02e5d [ 0.000000] ffffea0000047ce0 ffffea0000047ce0 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d20 ffffffff814fb329 ffffea0000047ce0 [ 0.000000] Call Trace: [ 0.000000] [<ffffffff81d02e5d>] dump_stack+0xc1/0x124 [ 0.000000] [<ffffffff814fb329>] print_address_description+0x189/0x260 [ 0.000000] [<ffffffff814fb725>] kasan_report+0x285/0x370 [ 0.000000] [<ffffffff848f9f6b>] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [<ffffffff814fb927>] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [<ffffffff848f9f6b>] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [<ffffffff8486cdb9>] free_all_bootmem+0xf2/0x24d [ 0.000000] [<ffffffff8486ccc7>] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [<ffffffff848a16c7>] ? dmar_table_detect+0x60/0x60 [ 0.000000] [<ffffffff83762050>] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [<ffffffff8484fa52>] mem_init+0x13/0x74 [ 0.000000] [<ffffffff8481b475>] start_kernel+0x31d/0x6e9 [ 0.000000] [<ffffffff8481b158>] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [<ffffffff8481a120>] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [<ffffffff8481a120>] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [<ffffffff8481a312>] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [<ffffffff8481a454>] 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 #8 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 708f20fa81966f7a ffffffff84207c40 ffffffff81d02e5d [ 0.000000] ffffffff83fb34b5 ffffffff84207d18 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d08 ffffffff81417caa 0000000041b58ab3 [ 0.000000] Call Trace: [ 0.000000] [<ffffffff81d02e5d>] dump_stack+0xc1/0x124 [ 0.000000] [<ffffffff81417caa>] panic+0x1aa/0x388 [ 0.000000] [<ffffffff81417b00>] ? percpu_up_read.constprop.45+0xe1/0xe1 [ 0.000000] [<ffffffff814fb180>] kasan_end_report+0x50/0x50 [ 0.000000] [<ffffffff814fb5fc>] kasan_report+0x15c/0x370 [ 0.000000] [<ffffffff848f9f6b>] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [<ffffffff814fb927>] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [<ffffffff848f9f6b>] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [<ffffffff8486cdb9>] free_all_bootmem+0xf2/0x24d [ 0.000000] [<ffffffff8486ccc7>] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [<ffffffff848a16c7>] ? dmar_table_detect+0x60/0x60 [ 0.000000] [<ffffffff83762050>] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [<ffffffff8484fa52>] mem_init+0x13/0x74 [ 0.000000] [<ffffffff8481b475>] start_kernel+0x31d/0x6e9 [ 0.000000] [<ffffffff8481b158>] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [<ffffffff8481a120>] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [<ffffffff8481a120>] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [<ffffffff8481a312>] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [<ffffffff8481a454>] 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) ) #8 SMP PREEMPT Sun Dec 31 11:52:08 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 1196322783 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 #8 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 68238f7a792addfa ffffffff84207ce8 ffffffff81d02e5d [ 0.000000] ffffea0000047ce0 ffffea0000047ce0 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d20 ffffffff814fb329 ffffea0000047ce0 [ 0.000000] Call Trace: [ 0.000000] [<ffffffff81d02e5d>] dump_stack+0xc1/0x124 [ 0.000000] [<ffffffff814fb329>] print_address_description+0x189/0x260 [ 0.000000] [<ffffffff814fb725>] kasan_report+0x285/0x370 [ 0.000000] [<ffffffff848f9f6b>] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [<ffffffff814fb927>] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [<ffffffff848f9f6b>] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [<ffffffff8486cdb9>] free_all_bootmem+0xf2/0x24d [ 0.000000] [<ffffffff8486ccc7>] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [<ffffffff848a16c7>] ? dmar_table_detect+0x60/0x60 [ 0.000000] [<ffffffff83762050>] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [<ffffffff8484fa52>] mem_init+0x13/0x74 [ 0.000000] [<ffffffff8481b475>] start_kernel+0x31d/0x6e9 [ 0.000000] [<ffffffff8481b158>] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [<ffffffff8481a120>] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [<ffffffff8481a120>] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [<ffffffff8481a312>] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [<ffffffff8481a454>] 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 #8 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 68238f7a792addfa ffffffff84207c40 ffffffff81d02e5d [ 0.000000] ffffffff83fb34b5 ffffffff84207d18 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d08 ffffffff81417caa 0000000041b58ab3 [ 0.000000] Call Trace: [ 0.000000] [<ffffffff81d02e5d>] dump_stack+0xc1/0x124 [ 0.000000] [<ffffffff81417caa>] panic+0x1aa/0x388 [ 0.000000] [<ffffffff81417b00>] ? percpu_up_read.constprop.45+0xe1/0xe1 [ 0.000000] [<ffffffff814fb180>] kasan_end_report+0x50/0x50 [ 0.000000] [<ffffffff814fb5fc>] kasan_report+0x15c/0x370 [ 0.000000] [<ffffffff848f9f6b>] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [<ffffffff814fb927>] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [<ffffffff848f9f6b>] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [<ffffffff8486cdb9>] free_all_bootmem+0xf2/0x24d [ 0.000000] [<ffffffff8486ccc7>] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [<ffffffff848a16c7>] ? dmar_table_detect+0x60/0x60 [ 0.000000] [<ffffffff83762050>] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [<ffffffff8484fa52>] mem_init+0x13/0x74 [ 0.000000] [<ffffffff8481b475>] start_kernel+0x31d/0x6e9 [ 0.000000] [<ffffffff8481b158>] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [<ffffffff8481a120>] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [<ffffffff8481a120>] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [<ffffffff8481a312>] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [<ffffffff8481a454>] 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) ) #8 SMP PREEMPT Sun Dec 31 11:52:08 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 1243544568 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 #8 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 6e88902c7f8fdeac ffffffff84207ce8 ffffffff81d02e5d [ 0.000000] ffffea0000047ce0 ffffea0000047ce0 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d20 ffffffff814fb329 ffffea0000047ce0 [ 0.000000] Call Trace: [ 0.000000] [<ffffffff81d02e5d>] dump_stack+0xc1/0x124 [ 0.000000] [<ffffffff814fb329>] print_address_description+0x189/0x260 [ 0.000000] [<ffffffff814fb725>] kasan_report+0x285/0x370 [ 0.000000] [<ffffffff848f9f6b>] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [<ffffffff814fb927>] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [<ffffffff848f9f6b>] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [<ffffffff8486cdb9>] free_all_bootmem+0xf2/0x24d [ 0.000000] [<ffffffff8486ccc7>] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [<ffffffff848a16c7>] ? dmar_table_detect+0x60/0x60 [ 0.000000] [<ffffffff83762050>] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [<ffffffff8484fa52>] mem_init+0x13/0x74 [ 0.000000] [<ffffffff8481b475>] start_kernel+0x31d/0x6e9 [ 0.000000] [<ffffffff8481b158>] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [<ffffffff8481a120>] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [<ffffffff8481a120>] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [<ffffffff8481a312>] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [<ffffffff8481a454>] 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 #8 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 6e88902c7f8fdeac ffffffff84207c40 ffffffff81d02e5d [ 0.000000] ffffffff83fb34b5 ffffffff84207d18 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d08 ffffffff81417caa 0000000041b58ab3 [ 0.000000] Call Trace: [ 0.000000] [<ffffffff81d02e5d>] dump_stack+0xc1/0x124 [ 0.000000] [<ffffffff81417caa>] panic+0x1aa/0x388 [ 0.000000] [<ffffffff81417b00>] ? percpu_up_read.constprop.45+0xe1/0xe1 [ 0.000000] [<ffffffff814fb180>] kasan_end_report+0x50/0x50 [ 0.000000] [<ffffffff814fb5fc>] kasan_report+0x15c/0x370 [ 0.000000] [<ffffffff848f9f6b>] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [<ffffffff814fb927>] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [<ffffffff848f9f6b>] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [<ffffffff8486cdb9>] free_all_bootmem+0xf2/0x24d [ 0.000000] [<ffffffff8486ccc7>] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [<ffffffff848a16c7>] ? dmar_table_detect+0x60/0x60 [ 0.000000] [<ffffffff83762050>] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [<ffffffff8484fa52>] mem_init+0x13/0x74 [ 0.000000] [<ffffffff8481b475>] start_kernel+0x31d/0x6e9 [ 0.000000] [<ffffffff8481b158>] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [<ffffffff8481a120>] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [<ffffffff8481a120>] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [<ffffffff8481a312>] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [<ffffffff8481a454>] 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) ) #8 SMP PREEMPT Sun Dec 31 11:52:08 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 1172921060 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 #8 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 64f5f1e675fd4066 ffffffff84207ce8 ffffffff81d02e5d [ 0.000000] ffffea0000047ce0 ffffea0000047ce0 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d20 ffffffff814fb329 ffffea0000047ce0 [ 0.000000] Call Trace: [ 0.000000] [<ffffffff81d02e5d>] dump_stack+0xc1/0x124 [ 0.000000] [<ffffffff814fb329>] print_address_description+0x189/0x260 [ 0.000000] [<ffffffff814fb725>] kasan_report+0x285/0x370 [ 0.000000] [<ffffffff848f9f6b>] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [<ffffffff814fb927>] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [<ffffffff848f9f6b>] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [<ffffffff8486cdb9>] free_all_bootmem+0xf2/0x24d [ 0.000000] [<ffffffff8486ccc7>] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [<ffffffff848a16c7>] ? dmar_table_detect+0x60/0x60 [ 0.000000] [<ffffffff83762050>] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [<ffffffff8484fa52>] mem_init+0x13/0x74 [ 0.000000] [<ffffffff8481b475>] start_kernel+0x31d/0x6e9 [ 0.000000] [<ffffffff8481b158>] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [<ffffffff8481a120>] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [<ffffffff8481a120>] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [<ffffffff8481a312>] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [<ffffffff8481a454>] 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 #8 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 64f5f1e675fd4066 ffffffff84207c40 ffffffff81d02e5d [ 0.000000] ffffffff83fb34b5 ffffffff84207d18 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d08 ffffffff81417caa 0000000041b58ab3 [ 0.000000] Call Trace: [ 0.000000] [<ffffffff81d02e5d>] dump_stack+0xc1/0x124 [ 0.000000] [<ffffffff81417caa>] panic+0x1aa/0x388 [ 0.000000] [<ffffffff81417b00>] ? percpu_up_read.constprop.45+0xe1/0xe1 [ 0.000000] [<ffffffff814fb180>] kasan_end_report+0x50/0x50 [ 0.000000] [<ffffffff814fb5fc>] kasan_report+0x15c/0x370 [ 0.000000] [<ffffffff848f9f6b>] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [<ffffffff814fb927>] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [<ffffffff848f9f6b>] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [<ffffffff8486cdb9>] free_all_bootmem+0xf2/0x24d [ 0.000000] [<ffffffff8486ccc7>] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [<ffffffff848a16c7>] ? dmar_table_detect+0x60/0x60 [ 0.000000] [<ffffffff83762050>] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [<ffffffff8484fa52>] mem_init+0x13/0x74 [ 0.000000] [<ffffffff8481b475>] start_kernel+0x31d/0x6e9 [ 0.000000] [<ffffffff8481b158>] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [<ffffffff8481a120>] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [<ffffffff8481a120>] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [<ffffffff8481a312>] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [<ffffffff8481a454>] 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) ) #8 SMP PREEMPT Sun Dec 31 11:52:08 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 1176855316 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 #8 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 65645008766b9e88 ffffffff84207ce8 ffffffff81d02e5d [ 0.000000] ffffea0000047ce0 ffffea0000047ce0 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d20 ffffffff814fb329 ffffea0000047ce0 [ 0.000000] Call Trace: [ 0.000000] [<ffffffff81d02e5d>] dump_stack+0xc1/0x124 [ 0.000000] [<ffffffff814fb329>] print_address_description+0x189/0x260 [ 0.000000] [<ffffffff814fb725>] kasan_report+0x285/0x370 [ 0.000000] [<ffffffff848f9f6b>] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [<ffffffff814fb927>] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [<ffffffff848f9f6b>] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [<ffffffff8486cdb9>] free_all_bootmem+0xf2/0x24d [ 0.000000] [<ffffffff8486ccc7>] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [<ffffffff848a16c7>] ? dmar_table_detect+0x60/0x60 [ 0.000000] [<ffffffff83762050>] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [<ffffffff8484fa52>] mem_init+0x13/0x74 [ 0.000000] [<ffffffff8481b475>] start_kernel+0x31d/0x6e9 [ 0.000000] [<ffffffff8481b158>] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [<ffffffff8481a120>] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [<ffffffff8481a120>] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [<ffffffff8481a312>] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [<ffffffff8481a454>] 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 #8 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 65645008766b9e88 ffffffff84207c40 ffffffff81d02e5d [ 0.000000] ffffffff83fb34b5 ffffffff84207d18 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d08 ffffffff81417caa 0000000041b58ab3 [ 0.000000] Call Trace: [ 0.000000] [<ffffffff81d02e5d>] dump_stack+0xc1/0x124 [ 0.000000] [<ffffffff81417caa>] panic+0x1aa/0x388 [ 0.000000] [<ffffffff81417b00>] ? percpu_up_read.constprop.45+0xe1/0xe1 [ 0.000000] [<ffffffff814fb180>] kasan_end_report+0x50/0x50 [ 0.000000] [<ffffffff814fb5fc>] kasan_report+0x15c/0x370 [ 0.000000] [<ffffffff848f9f6b>] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [<ffffffff814fb927>] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [<ffffffff848f9f6b>] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [<ffffffff8486cdb9>] free_all_bootmem+0xf2/0x24d [ 0.000000] [<ffffffff8486ccc7>] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [<ffffffff848a16c7>] ? dmar_table_detect+0x60/0x60 [ 0.000000] [<ffffffff83762050>] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [<ffffffff8484fa52>] mem_init+0x13/0x74 [ 0.000000] [<ffffffff8481b475>] start_kernel+0x31d/0x6e9 [ 0.000000] [<ffffffff8481b158>] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [<ffffffff8481a120>] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [<ffffffff8481a120>] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [<ffffffff8481a312>] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [<ffffffff8481a454>] 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) ) #8 SMP PREEMPT Sun Dec 31 11:52:08 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 1293137927 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 #8 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 7566822e866dd0ae ffffffff84207ce8 ffffffff81d02e5d [ 0.000000] ffffea0000047ce0 ffffea0000047ce0 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d20 ffffffff814fb329 ffffea0000047ce0 [ 0.000000] Call Trace: [ 0.000000] [<ffffffff81d02e5d>] dump_stack+0xc1/0x124 [ 0.000000] [<ffffffff814fb329>] print_address_description+0x189/0x260 [ 0.000000] [<ffffffff814fb725>] kasan_report+0x285/0x370 [ 0.000000] [<ffffffff848f9f6b>] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [<ffffffff814fb927>] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [<ffffffff848f9f6b>] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [<ffffffff8486cdb9>] free_all_bootmem+0xf2/0x24d [ 0.000000] [<ffffffff8486ccc7>] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [<ffffffff848a16c7>] ? dmar_table_detect+0x60/0x60 [ 0.000000] [<ffffffff83762050>] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [<ffffffff8484fa52>] mem_init+0x13/0x74 [ 0.000000] [<ffffffff8481b475>] start_kernel+0x31d/0x6e9 [ 0.000000] [<ffffffff8481b158>] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [<ffffffff8481a120>] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [<ffffffff8481a120>] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [<ffffffff8481a312>] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [<ffffffff8481a454>] 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 #8 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 7566822e866dd0ae ffffffff84207c40 ffffffff81d02e5d [ 0.000000] ffffffff83fb34b5 ffffffff84207d18 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d08 ffffffff81417caa 0000000041b58ab3 [ 0.000000] Call Trace: [ 0.000000] [<ffffffff81d02e5d>] dump_stack+0xc1/0x124 [ 0.000000] [<ffffffff81417caa>] panic+0x1aa/0x388 [ 0.000000] [<ffffffff81417b00>] ? percpu_up_read.constprop.45+0xe1/0xe1 [ 0.000000] [<ffffffff814fb180>] kasan_end_report+0x50/0x50 [ 0.000000] [<ffffffff814fb5fc>] kasan_report+0x15c/0x370 [ 0.000000] [<ffffffff848f9f6b>] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [<ffffffff814fb927>] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [<ffffffff848f9f6b>] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [<ffffffff8486cdb9>] free_all_bootmem+0xf2/0x24d [ 0.000000] [<ffffffff8486ccc7>] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [<ffffffff848a16c7>] ? dmar_table_detect+0x60/0x60 [ 0.000000] [<ffffffff83762050>] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [<ffffffff8484fa52>] mem_init+0x13/0x74 [ 0.000000] [<ffffffff8481b475>] start_kernel+0x31d/0x6e9 [ 0.000000] [<ffffffff8481b158>] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [<ffffffff8481a120>] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [<ffffffff8481a120>] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [<ffffffff8481a312>] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [<ffffffff8481a454>] x86_64_start_kernel+0x140/0x163 [ 0.000000] Rebooting in 86400 seconds.. [ 0.000000] ACPI MEMORY or I/O RESET_REG. [ 0.000SeaBIOS (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) ) #8 SMP PREEMPT Sun Dec 31 11:52:08 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 1141657899 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 #8 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 60b396b471bae534 ffffffff84207ce8 ffffffff81d02e5d [ 0.000000] ffffea0000047ce0 ffffea0000047ce0 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d20 ffffffff814fb329 ffffea0000047ce0 [ 0.000000] Call Trace: [ 0.000000] [<ffffffff81d02e5d>] dump_stack+0xc1/0x124 [ 0.000000] [<ffffffff814fb329>] print_address_description+0x189/0x260 [ 0.000000] [<ffffffff814fb725>] kasan_report+0x285/0x370 [ 0.000000] [<ffffffff848f9f6b>] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [<ffffffff814fb927>] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [<ffffffff848f9f6b>] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [<ffffffff8486cdb9>] free_all_bootmem+0xf2/0x24d [ 0.000000] [<ffffffff8486ccc7>] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [<ffffffff848a16c7>] ? dmar_table_detect+0x60/0x60 [ 0.000000] [<ffffffff83762050>] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [<ffffffff8484fa52>] mem_init+0x13/0x74 [ 0.000000] [<ffffffff8481b475>] start_kernel+0x31d/0x6e9 [ 0.000000] [<ffffffff8481b158>] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [<ffffffff8481a120>] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [<ffffffff8481a120>] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [<ffffffff8481a312>] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [<ffffffff8481a454>] 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 #8 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 60b396b471bae534 ffffffff84207c40 ffffffff81d02e5d [ 0.000000] ffffffff83fb34b5 ffffffff84207d18 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d08 ffffffff81417caa 0000000041b58ab3 [ 0.000000] Call Trace: [ 0.000000] [<ffffffff81d02e5d>] dump_stack+0xc1/0x124 [ 0.000000] [<ffffffff81417caa>] panic+0x1aa/0x388 [ 0.000000] [<ffffffff81417b00>] ? percpu_up_read.constprop.45+0xe1/0xe1 [ 0.000000] [<ffffffff814fb180>] kasan_end_report+0x50/0x50 [ 0.000000] [<ffffffff814fb5fc>] kasan_report+0x15c/0x370 [ 0.000000] [<ffffffff848f9f6b>] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [<ffffffff814fb927>] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [<ffffffff848f9f6b>] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [<ffffffff8486cdb9>] free_all_bootmem+0xf2/0x24d [ 0.000000] [<ffffffff8486ccc7>] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [<ffffffff848a16c7>] ? dmar_table_detect+0x60/0x60 [ 0.000000] [<ffffffff83762050>] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [<ffffffff8484fa52>] mem_init+0x13/0x74 [ 0.000000] [<ffffffff8481b475>] start_kernel+0x31d/0x6e9 [ 0.000000] [<ffffffff8481b158>] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [<ffffffff8481a120>] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [<ffffffff8481a120>] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [<ffffffff8481a312>] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [<ffffffff8481a454>] 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) ) #8 SMP PREEMPT Sun Dec 31 11:52:08 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 1136487293 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 #8 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 5fe643b770ed9237 ffffffff84207ce8 ffffffff81d02e5d [ 0.000000] ffffea0000047ce0 ffffea0000047ce0 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d20 ffffffff814fb329 ffffea0000047ce0 [ 0.000000] Call Trace: [ 0.000000] [<ffffffff81d02e5d>] dump_stack+0xc1/0x124 [ 0.000000] [<ffffffff814fb329>] print_address_description+0x189/0x260 [ 0.000000] [<ffffffff814fb725>] kasan_report+0x285/0x370 [ 0.000000] [<ffffffff848f9f6b>] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [<ffffffff814fb927>] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [<ffffffff848f9f6b>] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [<ffffffff8486cdb9>] free_all_bootmem+0xf2/0x24d [ 0.000000] [<ffffffff8486ccc7>] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [<ffffffff848a16c7>] ? dmar_table_detect+0x60/0x60 [ 0.000000] [<ffffffff83762050>] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [<ffffffff8484fa52>] mem_init+0x13/0x74 [ 0.000000] [<ffffffff8481b475>] start_kernel+0x31d/0x6e9 [ 0.000000] [<ffffffff8481b158>] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [<ffffffff8481a120>] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [<ffffffff8481a120>] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [<ffffffff8481a312>] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [<ffffffff8481a454>] 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 #8 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 5fe643b770ed9237 ffffffff84207c40 ffffffff81d02e5d [ 0.000000] ffffffff83fb34b5 ffffffff84207d18 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d08 ffffffff81417caa 0000000041b58ab3 [ 0.000000] Call Trace: [ 0.000000] [<ffffffff81d02e5d>] dump_stack+0xc1/0x124 [ 0.000000] [<ffffffff81417caa>] panic+0x1aa/0x388 [ 0.000000] [<ffffffff81417b00>] ? percpu_up_read.constprop.45+0xe1/0xe1 [ 0.000000] [<ffffffff814fb180>] kasan_end_report+0x50/0x50 [ 0.000000] [<ffffffff814fb5fc>] kasan_report+0x15c/0x370 [ 0.000000] [<ffffffff848f9f6b>] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [<ffffffff814fb927>] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [<ffffffff848f9f6b>] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [<ffffffff8486cdb9>] free_all_bootmem+0xf2/0x24d [ 0.000000] [<ffffffff8486ccc7>] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [<ffffffff848a16c7>] ? dmar_table_detect+0x60/0x60 [ 0.000000] [<ffffffff83762050>] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [<ffffffff8484fa52>] mem_init+0x13/0x74 [ 0.000000] [<ffffffff8481b475>] start_kernel+0x31d/0x6e9 [ 0.000000] [<ffffffff8481b158>] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [<ffffffff8481a120>] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [<ffffffff8481a120>] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [<ffffffff8481a312>] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [<ffffffff8481a454>] 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) ) #8 SMP PREEMPT Sun Dec 31 11:52:08 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 1117262243 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 #8 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 5d3de2276e4530a7 ffffffff84207ce8 ffffffff81d02e5d [ 0.000000] ffffea0000047ce0 ffffea0000047ce0 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d20 ffffffff814fb329 ffffea0000047ce0 [ 0.000000] Call Trace: [ 0.000000] [<ffffffff81d02e5d>] dump_stack+0xc1/0x124 [ 0.000000] [<ffffffff814fb329>] print_address_description+0x189/0x260 [ 0.000000] [<ffffffff814fb725>] kasan_report+0x285/0x370 [ 0.000000] [<ffffffff848f9f6b>] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [<ffffffff814fb927>] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [<ffffffff848f9f6b>] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [<ffffffff8486cdb9>] free_all_bootmem+0xf2/0x24d [ 0.000000] [<ffffffff8486ccc7>] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [<ffffffff848a16c7>] ? dmar_table_detect+0x60/0x60 [ 0.000000] [<ffffffff83762050>] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [<ffffffff8484fa52>] mem_init+0x13/0x74 [ 0.000000] [<ffffffff8481b475>] start_kernel+0x31d/0x6e9 [ 0.000000] [<ffffffff8481b158>] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [<ffffffff8481a120>] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [<ffffffff8481a120>] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [<ffffffff8481a312>] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [<ffffffff8481a454>] 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 #8 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 5d3de2276e4530a7 ffffffff84207c40 ffffffff81d02e5d [ 0.000000] ffffffff83fb34b5 ffffffff84207d18 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d08 ffffffff81417caa 0000000041b58ab3 [ 0.000000] Call Trace: [ 0.000000] [<ffffffff81d02e5d>] dump_stack+0xc1/0x124 [ 0.000000] [<ffffffff81417caa>] panic+0x1aa/0x388 [ 0.000000] [<ffffffff81417b00>] ? percpu_up_read.constprop.45+0xe1/0xe1 [ 0.000000] [<ffffffff814fb180>] kasan_end_report+0x50/0x50 [ 0.000000] [<ffffffff814fb5fc>] kasan_report+0x15c/0x370 [ 0.000000] [<ffffffff848f9f6b>] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [<ffffffff814fb927>] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [<ffffffff848f9f6b>] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [<ffffffff8486cdb9>] free_all_bootmem+0xf2/0x24d [ 0.000000] [<ffffffff8486ccc7>] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [<ffffffff848a16c7>] ? dmar_table_detect+0x60/0x60 [ 0.000000] [<ffffffff83762050>] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [<ffffffff8484fa52>] mem_init+0x13/0x74 [ 0.000000] [<ffffffff8481b475>] start_kernel+0x31d/0x6e9 [ 0.000000] [<ffffffff8481b158>] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [<ffffffff8481a120>] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [<ffffffff8481a120>] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [<ffffffff8481a312>] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [<ffffffff8481a454>] 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) ) #8 SMP PREEMPT Sun Dec 31 11:52:08 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 1312171241 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 #8 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 77dbd2a588e32125 ffffffff84207ce8 ffffffff81d02e5d [ 0.000000] ffffea0000047ce0 ffffea0000047ce0 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d20 ffffffff814fb329 ffffea0000047ce0 [ 0.000000] Call Trace: [ 0.000000] [<ffffffff81d02e5d>] dump_stack+0xc1/0x124 [ 0.000000] [<ffffffff814fb329>] print_address_description+0x189/0x260 [ 0.000000] [<ffffffff814fb725>] kasan_report+0x285/0x370 [ 0.000000] [<ffffffff848f9f6b>] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [<ffffffff814fb927>] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [<ffffffff848f9f6b>] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [<ffffffff8486cdb9>] free_all_bootmem+0xf2/0x24d [ 0.000000] [<ffffffff8486ccc7>] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [<ffffffff848a16c7>] ? dmar_table_detect+0x60/0x60 [ 0.000000] [<ffffffff83762050>] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [<ffffffff8484fa52>] mem_init+0x13/0x74 [ 0.000000] [<ffffffff8481b475>] start_kernel+0x31d/0x6e9 [ 0.000000] [<ffffffff8481b158>] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [<ffffffff8481a120>] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [<ffffffff8481a120>] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [<ffffffff8481a312>] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [<ffffffff8481a454>] 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 #8 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 77dbd2a588e32125 ffffffff84207c40 ffffffff81d02e5d [ 0.000000] ffffffff83fb34b5 ffffffff84207d18 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d08 ffffffff81417caa 0000000041b58ab3 [ 0.000000] Call Trace: [ 0.000000] [<ffffffff81d02e5d>] dump_stack+0xc1/0x124 [ 0.000000] [<ffffffff81417caa>] panic+0x1aa/0x388 [ 0.000000] [<ffffffff81417b00>] ? percpu_up_read.constprop.45+0xe1/0xe1 [ 0.000000] [<ffffffff814fb180>] kasan_end_report+0x50/0x50 [ 0.000000] [<ffffffff814fb5fc>] kasan_report+0x15c/0x370 [ 0.000000] [<ffffffff848f9f6b>] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [<ffffffff814fb927>] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [<ffffffff848f9f6b>] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [<ffffffff8486cdb9>] free_all_bootmem+0xf2/0x24d [ 0.000000] [<ffffffff8486ccc7>] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [<ffffffff848a16c7>] ? dmar_table_detect+0x60/0x60 [ 0.000000] [<ffffffff83762050>] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [<ffffffff8484fa52>] mem_init+0x13/0x74 [ 0.000000] [<ffffffff8481b475>] start_kernel+0x31d/0x6e9 [ 0.000000] [<ffffffff8481b158>] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [<ffffffff8481a120>] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [<ffffffff8481a120>] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [<ffffffff8481a312>] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [<ffffffff8481a454>] 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) ) #8 SMP PREEMPT Sun Dec 31 11:52:08 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 1135226124 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 #8 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 5ed6c8916fde1711 ffffffff84207ce8 ffffffff81d02e5d [ 0.000000] ffffea0000047ce0 ffffea0000047ce0 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d20 ffffffff814fb329 ffffea0000047ce0 [ 0.000000] Call Trace: [ 0.000000] [<ffffffff81d02e5d>] dump_stack+0xc1/0x124 [ 0.000000] [<ffffffff814fb329>] print_address_description+0x189/0x260 [ 0.000000] [<ffffffff814fb725>] kasan_report+0x285/0x370 [ 0.000000] [<ffffffff848f9f6b>] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [<ffffffff814fb927>] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [<ffffffff848f9f6b>] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [<ffffffff8486cdb9>] free_all_bootmem+0xf2/0x24d [ 0.000000] [<ffffffff8486ccc7>] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [<ffffffff848a16c7>] ? dmar_table_detect+0x60/0x60 [ 0.000000] [<ffffffff83762050>] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [<ffffffff8484fa52>] mem_init+0x13/0x74 [ 0.000000] [<ffffffff8481b475>] start_kernel+0x31d/0x6e9 [ 0.000000] [<ffffffff8481b158>] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [<ffffffff8481a120>] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [<ffffffff8481a120>] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [<ffffffff8481a312>] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [<ffffffff8481a454>] 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 #8 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 5ed6c8916fde1711 ffffffff84207c40 ffffffff81d02e5d [ 0.000000] ffffffff83fb34b5 ffffffff84207d18 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d08 ffffffff81417caa 0000000041b58ab3 [ 0.000000] Call Trace: [ 0.000000] [<ffffffff81d02e5d>] dump_stack+0xc1/0x124 [ 0.000000] [<ffffffff81417caa>] panic+0x1aa/0x388 [ 0.000000] [<ffffffff81417b00>] ? percpu_up_read.constprop.45+0xe1/0xe1 [ 0.000000] [<ffffffff814fb180>] kasan_end_report+0x50/0x50 [ 0.000000] [<ffffffff814fb5fc>] kasan_report+0x15c/0x370 [ 0.000000] [<ffffffff848f9f6b>] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [<ffffffff814fb927>] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [<ffffffff848f9f6b>] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [<ffffffff8486cdb9>] free_all_bootmem+0xf2/0x24d [ 0.000000] [<ffffffff8486ccc7>] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [<ffffffff848a16c7>] ? dmar_table_detect+0x60/0x60 [ 0.000000] [<ffffffff83762050>] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [<ffffffff8484fa52>] mem_init+0x13/0x74 [ 0.000000] [<ffffffff8481b475>] start_kernel+0x31d/0x6e9 [ 0.000000] [<ffffffff8481b158>] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [<ffffffff8481a120>] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [<ffffffff8481a120>] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [<ffffffff8481a312>] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [<ffffffff8481a454>] 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) ) #8 SMP PREEMPT Sun Dec 31 11:52:08 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 1152186723 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 #8 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 621cdb60732429e0 ffffffff84207ce8 ffffffff81d02e5d [ 0.000000] ffffea0000047ce0 ffffea0000047ce0 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d20 ffffffff814fb329 ffffea0000047ce0 [ 0.000000] Call Trace: [ 0.000000] [<ffffffff81d02e5d>] dump_stack+0xc1/0x124 [ 0.000000] [<ffffffff814fb329>] print_address_description+0x189/0x260 [ 0.000000] [<ffffffff814fb725>] kasan_report+0x285/0x370 [ 0.000000] [<ffffffff848f9f6b>] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [<ffffffff814fb927>] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [<ffffffff848f9f6b>] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [<ffffffff8486cdb9>] free_all_bootmem+0xf2/0x24d [ 0.000000] [<ffffffff8486ccc7>] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [<ffffffff848a16c7>] ? dmar_table_detect+0x60/0x60 [ 0.000000] [<ffffffff83762050>] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [<ffffffff8484fa52>] mem_init+0x13/0x74 [ 0.000000] [<ffffffff8481b475>] start_kernel+0x31d/0x6e9 [ 0.000000] [<ffffffff8481b158>] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [<ffffffff8481a120>] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [<ffffffff8481a120>] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [<ffffffff8481a312>] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [<ffffffff8481a454>] 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 #8 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 621cdb60732429e0 ffffffff84207c40 ffffffff81d02e5d [ 0.000000] ffffffff83fb34b5 ffffffff84207d18 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d08 ffffffff81417caa 0000000041b58ab3 [ 0.000000] Call Trace: [ 0.000000] [<ffffffff81d02e5d>] dump_stack+0xc1/0x124 [ 0.000000] [<ffffffff81417caa>] panic+0x1aa/0x388 [ 0.000000] [<ffffffff81417b00>] ? percpu_up_read.constprop.45+0xe1/0xe1 [ 0.000000] [<ffffffff814fb180>] kasan_end_report+0x50/0x50 [ 0.000000] [<ffffffff814fb5fc>] kasan_report+0x15c/0x370 [ 0.000000] [<ffffffff848f9f6b>] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [<ffffffff814fb927>] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [<ffffffff848f9f6b>] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [<ffffffff8486cdb9>] free_all_bootmem+0xf2/0x24d [ 0.000000] [<ffffffff8486ccc7>] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [<ffffffff848a16c7>] ? dmar_table_detect+0x60/0x60 [ 0.000000] [<ffffffff83762050>] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [<ffffffff8484fa52>] mem_init+0x13/0x74 [ 0.000000] [<ffffffff8481b475>] start_kernel+0x31d/0x6e9 [ 0.000000] [<ffffffff8481b158>] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [<ffffffff8481a120>] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [<ffffffff8481a120>] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [<ffffffff8481a312>] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [<ffffffff8481a454>] 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) ) #8 SMP PREEMPT Sun Dec 31 11:52:08 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 1153454780 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 #8 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 625d4a9473649914 ffffffff84207ce8 ffffffff81d02e5d [ 0.000000] ffffea0000047ce0 ffffea0000047ce0 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d20 ffffffff814fb329 ffffea0000047ce0 [ 0.000000] Call Trace: [ 0.000000] [<ffffffff81d02e5d>] dump_stack+0xc1/0x124 [ 0.000000] [<ffffffff814fb329>] print_address_description+0x189/0x260 [ 0.000000] [<ffffffff814fb725>] kasan_report+0x285/0x370 [ 0.000000] [<ffffffff848f9f6b>] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [<ffffffff814fb927>] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [<ffffffff848f9f6b>] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [<ffffffff8486cdb9>] free_all_bootmem+0xf2/0x24d [ 0.000000] [<ffffffff8486ccc7>] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [<ffffffff848a16c7>] ? dmar_table_detect+0x60/0x60 [ 0.000000] [<ffffffff83762050>] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [<ffffffff8484fa52>] mem_init+0x13/0x74 [ 0.000000] [<ffffffff8481b475>] start_kernel+0x31d/0x6e9 [ 0.000000] [<ffffffff8481b158>] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [<ffffffff8481a120>] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [<ffffffff8481a120>] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [<ffffffff8481a312>] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [<ffffffff8481a454>] 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 #8 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 625d4a9473649914 ffffffff84207c40 ffffffff81d02e5d [ 0.000000] ffffffff83fb34b5 ffffffff84207d18 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d08 ffffffff81417caa 0000000041b58ab3 [ 0.000000] Call Trace: [ 0.000000] [<ffffffff81d02e5d>] dump_stack+0xc1/0x124 [ 0.000000] [<ffffffff81417caa>] panic+0x1aa/0x388 [ 0.000000] [<ffffffff81417b00>] ? percpu_up_read.constprop.45+0xe1/0xe1 [ 0.000000] [<ffffffff814fb180>] kasan_end_report+0x50/0x50 [ 0.000000] [<ffffffff814fb5fc>] kasan_report+0x15c/0x370 [ 0.000000] [<ffffffff848f9f6b>] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [<ffffffff814fb927>] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [<ffffffff848f9f6b>] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [<ffffffff8486cdb9>] free_all_bootmem+0xf2/0x24d [ 0.000000] [<ffffffff8486ccc7>] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [<ffffffff848a16c7>] ? dmar_table_detect+0x60/0x60 [ 0.000000] [<ffffffff83762050>] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [<ffffffff8484fa52>] mem_init+0x13/0x74 [ 0.000000] [<ffffffff8481b475>] start_kernel+0x31d/0x6e9 [ 0.000000] [<ffffffff8481b158>] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [<ffffffff8481a120>] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [<ffffffff8481a120>] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [<ffffffff8481a312>] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [<ffffffff8481a454>] 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) ) #8 SMP PREEMPT Sun Dec 31 11:52:08 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 1140637557 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 #8 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 6062238d7169720d ffffffff84207ce8 ffffffff81d02e5d [ 0.000000] ffffea0000047ce0 ffffea0000047ce0 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d20 ffffffff814fb329 ffffea0000047ce0 [ 0.000000] Call Trace: [ 0.000000] [<ffffffff81d02e5d>] dump_stack+0xc1/0x124 [ 0.000000] [<ffffffff814fb329>] print_address_description+0x189/0x260 [ 0.000000] [<ffffffff814fb725>] kasan_report+0x285/0x370 [ 0.000000] [<ffffffff848f9f6b>] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [<ffffffff814fb927>] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [<ffffffff848f9f6b>] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [<ffffffff8486cdb9>] free_all_bootmem+0xf2/0x24d [ 0.000000] [<ffffffff8486ccc7>] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [<ffffffff848a16c7>] ? dmar_table_detect+0x60/0x60 [ 0.000000] [<ffffffff83762050>] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [<ffffffff8484fa52>] mem_init+0x13/0x74 [ 0.000000] [<ffffffff8481b475>] start_kernel+0x31d/0x6e9 [ 0.000000] [<ffffffff8481b158>] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [<ffffffff8481a120>] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [<ffffffff8481a120>] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [<ffffffff8481a312>] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [<ffffffff8481a454>] 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 #8 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 6062238d7169720d ffffffff84207c40 ffffffff81d02e5d [ 0.000000] ffffffff83fb34b5 ffffffff84207d18 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d08 ffffffff81417caa 0000000041b58ab3 [ 0.000000] Call Trace: [ 0.000000] [<ffffffff81d02e5d>] dump_stack+0xc1/0x124 [ 0.000000] [<ffffffff81417caa>] panic+0x1aa/0x388 [ 0.000000] [<ffffffff81417b00>] ? percpu_up_read.constprop.45+0xe1/0xe1 [ 0.000000] [<ffffffff814fb180>] kasan_end_report+0x50/0x50 [ 0.000000] [<ffffffff814fb5fc>] kasan_report+0x15c/0x370 [ 0.000000] [<ffffffff848f9f6b>] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [<ffffffff814fb927>] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [<ffffffff848f9f6b>] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [<ffffffff8486cdb9>] free_all_bootmem+0xf2/0x24d [ 0.000000] [<ffffffff8486ccc7>] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [<ffffffff848a16c7>] ? dmar_table_detect+0x60/0x60 [ 0.000000] [<ffffffff83762050>] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [<ffffffff8484fa52>] mem_init+0x13/0x74 [ 0.000000] [<ffffffff8481b475>] start_kernel+0x31d/0x6e9 [ 0.000000] [<ffffffff8481b158>] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [<ffffffff8481a120>] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [<ffffffff8481a120>] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [<ffffffff8481a312>] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [<ffffffff8481a454>] 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) ) #8 SMP PREEMPT Sun Dec 31 11:52:08 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 1160501679 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 #8 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 631f5cad7426ab2d ffffffff84207ce8 ffffffff81d02e5d [ 0.000000] ffffea0000047ce0 ffffea0000047ce0 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d20 ffffffff814fb329 ffffea0000047ce0 [ 0.000000] Call Trace: [ 0.000000] [<ffffffff81d02e5d>] dump_stack+0xc1/0x124 [ 0.000000] [<ffffffff814fb329>] print_address_description+0x189/0x260 [ 0.000000] [<ffffffff814fb725>] kasan_report+0x285/0x370 [ 0.000000] [<ffffffff848f9f6b>] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [<ffffffff814fb927>] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [<ffffffff848f9f6b>] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [<ffffffff8486cdb9>] free_all_bootmem+0xf2/0x24d [ 0.000000] [<ffffffff8486ccc7>] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [<ffffffff848a16c7>] ? dmar_table_detect+0x60/0x60 [ 0.000000] [<ffffffff83762050>] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [<ffffffff8484fa52>] mem_init+0x13/0x74 [ 0.000000] [<ffffffff8481b475>] start_kernel+0x31d/0x6e9 [ 0.000000] [<ffffffff8481b158>] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [<ffffffff8481a120>] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [<ffffffff8481a120>] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [<ffffffff8481a312>] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [<ffffffff8481a454>] 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 #8 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 631f5cad7426ab2d ffffffff84207c40 ffffffff81d02e5d [ 0.000000] ffffffff83fb34b5 ffffffff84207d18 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d08 ffffffff81417caa 0000000041b58ab3 [ 0.000000] Call Trace: [ 0.000000] [<ffffffff81d02e5d>] dump_stack+0xc1/0x124 [ 0.000000] [<ffffffff81417caa>] panic+0x1aa/0x388 [ 0.000000] [<ffffffff81417b00>] ? percpu_up_read.constprop.45+0xe1/0xe1 [ 0.000000] [<ffffffff814fb180>] kasan_end_report+0x50/0x50 [ 0.000000] [<ffffffff814fb5fc>] kasan_report+0x15c/0x370 [ 0.000000] [<ffffffff848f9f6b>] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [<ffffffff814fb927>] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [<ffffffff848f9f6b>] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [<ffffffff8486cdb9>] free_all_bootmem+0xf2/0x24d [ 0.000000] [<ffffffff8486ccc7>] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [<ffffffff848a16c7>] ? dmar_table_detect+0x60/0x60 [ 0.000000] [<ffffffff83762050>] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [<ffffffff8484fa52>] mem_init+0x13/0x74 [ 0.000000] [<ffffffff8481b475>] start_kernel+0x31d/0x6e9 [ 0.000000] [<ffffffff8481b158>] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [<ffffffff8481a120>] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [<ffffffff8481a120>] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [<ffffffff8481a312>] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [<ffffffff8481a454>] 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) ) #8 SMP PREEMPT Sun Dec 31 11:52:08 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 1325422404 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 #8 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 79ef95b48af6e434 ffffffff84207ce8 ffffffff81d02e5d [ 0.000000] ffffea0000047ce0 ffffea0000047ce0 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d20 ffffffff814fb329 ffffea0000047ce0 [ 0.000000] Call Trace: [ 0.000000] [<ffffffff81d02e5d>] dump_stack+0xc1/0x124 [ 0.000000] [<ffffffff814fb329>] print_address_description+0x189/0x260 [ 0.000000] [<ffffffff814fb725>] kasan_report+0x285/0x370 [ 0.000000] [<ffffffff848f9f6b>] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [<ffffffff814fb927>] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [<ffffffff848f9f6b>] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [<ffffffff8486cdb9>] free_all_bootmem+0xf2/0x24d [ 0.000000] [<ffffffff8486ccc7>] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [<ffffffff848a16c7>] ? dmar_table_detect+0x60/0x60 [ 0.000000] [<ffffffff83762050>] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [<ffffffff8484fa52>] mem_init+0x13/0x74 [ 0.000000] [<ffffffff8481b475>] start_kernel+0x31d/0x6e9 [ 0.000000] [<ffffffff8481b158>] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [<ffffffff8481a120>] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [<ffffffff8481a120>] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [<ffffffff8481a312>] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [<ffffffff8481a454>] 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 #8 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 79ef95b48af6e434 ffffffff84207c40 ffffffff81d02e5d [ 0.000000] ffffffff83fb34b5 ffffffff84207d18 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d08 ffffffff81417caa 0000000041b58ab3 [ 0.000000] Call Trace: [ 0.000000] [<ffffffff81d02e5d>] dump_stack+0xc1/0x124 [ 0.000000] [<ffffffff81417caa>] panic+0x1aa/0x388 [ 0.000000] [<ffffffff81417b00>] ? percpu_up_read.constprop.45+0xe1/0xe1 [ 0.000000] [<ffffffff814fb180>] kasan_end_report+0x50/0x50 [ 0.000000] [<ffffffff814fb5fc>] kasan_report+0x15c/0x370 [ 0.000000] [<ffffffff848f9f6b>] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [<ffffffff814fb927>] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [<ffffffff848f9f6b>] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [<ffffffff8486cdb9>] free_all_bootmem+0xf2/0x24d [ 0.000000] [<ffffffff8486ccc7>] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [<ffffffff848a16c7>] ? dmar_table_detect+0x60/0x60 [ 0.000000] [<ffffffff83762050>] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [<ffffffff8484fa52>] mem_init+0x13/0x74 [ 0.000000] [<ffffffff8481b475>] start_kernel+0x31d/0x6e9 [ 0.000000] [<ffffffff8481b158>] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [<ffffffff8481a120>] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [<ffffffff8481a120>] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [<ffffffff8481a312>] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [<ffffffff8481a454>] 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) ) #8 SMP PREEMPT Sun Dec 31 11:52:08 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 1268957808 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 #8 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 7233802d833acead ffffffff84207ce8 ffffffff81d02e5d [ 0.000000] ffffea0000047ce0 ffffea0000047ce0 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d20 ffffffff814fb329 ffffea0000047ce0 [ 0.000000] Call Trace: [ 0.000000] [<ffffffff81d02e5d>] dump_stack+0xc1/0x124 [ 0.000000] [<ffffffff814fb329>] print_address_description+0x189/0x260 [ 0.000000] [<ffffffff814fb725>] kasan_report+0x285/0x370 [ 0.000000] [<ffffffff848f9f6b>] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [<ffffffff814fb927>] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [<ffffffff848f9f6b>] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [<ffffffff8486cdb9>] free_all_bootmem+0xf2/0x24d [ 0.000000] [<ffffffff8486ccc7>] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [<ffffffff848a16c7>] ? dmar_table_detect+0x60/0x60 [ 0.000000] [<ffffffff83762050>] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [<ffffffff8484fa52>] mem_init+0x13/0x74 [ 0.000000] [<ffffffff8481b475>] start_kernel+0x31d/0x6e9 [ 0.000000] [<ffffffff8481b158>] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [<ffffffff8481a120>] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [<ffffffff8481a120>] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [<ffffffff8481a312>] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [<ffffffff8481a454>] 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 #8 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 7233802d833acead ffffffff84207c40 ffffffff81d02e5d [ 0.000000] ffffffff83fb34b5 ffffffff84207d18 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d08 ffffffff81417caa 0000000041b58ab3 [ 0.000000] Call Trace: [ 0.000000] [<ffffffff81d02e5d>] dump_stack+0xc1/0x124 [ 0.000000] [<ffffffff81417caa>] panic+0x1aa/0x388 [ 0.000000] [<ffffffff81417b00>] ? percpu_up_read.constprop.45+0xe1/0xe1 [ 0.000000] [<ffffffff814fb180>] kasan_end_report+0x50/0x50 [ 0.000000] [<ffffffff814fb5fc>] kasan_report+0x15c/0x370 [ 0.000000] [<ffffffff848f9f6b>] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [<ffffffff814fb927>] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [<ffffffff848f9f6b>] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [<ffffffff8486cdb9>] free_all_bootmem+0xf2/0x24d [ 0.000000] [<ffffffff8486ccc7>] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [<ffffffff848a16c7>] ? dmar_table_detect+0x60/0x60 [ 0.000000] [<ffffffff83762050>] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [<ffffffff8484fa52>] mem_init+0x13/0x74 [ 0.000000] [<ffffffff8481b475>] start_kernel+0x31d/0x6e9 [ 0.000000] [<ffffffff8481b158>] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [<ffffffff8481a120>] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [<ffffffff8481a120>] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [<ffffffff8481a312>] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [<ffffffff8481a454>] 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) ) #8 SMP PREEMPT Sun Dec 31 11:52:08 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 1167107102 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 #8 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 64000634750754b4 ffffffff84207ce8 ffffffff81d02e5d [ 0.000000] ffffea0000047ce0 ffffea0000047ce0 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d20 ffffffff814fb329 ffffea0000047ce0 [ 0.000000] Call Trace: [ 0.000000] [<ffffffff81d02e5d>] dump_stack+0xc1/0x124 [ 0.000000] [<ffffffff814fb329>] print_address_description+0x189/0x260 [ 0.000000] [<ffffffff814fb725>] kasan_report+0x285/0x370 [ 0.000000] [<ffffffff848f9f6b>] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [<ffffffff814fb927>] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [<ffffffff848f9f6b>] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [<ffffffff8486cdb9>] free_all_bootmem+0xf2/0x24d [ 0.000000] [<ffffffff8486ccc7>] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [<ffffffff848a16c7>] ? dmar_table_detect+0x60/0x60 [ 0.000000] [<ffffffff83762050>] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [<ffffffff8484fa52>] mem_init+0x13/0x74 [ 0.000000] [<ffffffff8481b475>] start_kernel+0x31d/0x6e9 [ 0.000000] [<ffffffff8481b158>] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [<ffffffff8481a120>] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [<ffffffff8481a120>] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [<ffffffff8481a312>] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [<ffffffff8481a454>] 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 #8 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 64000634750754b4 ffffffff84207c40 ffffffff81d02e5d [ 0.000000] ffffffff83fb34b5 ffffffff84207d18 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d08 ffffffff81417caa 0000000041b58ab3 [ 0.000000] Call Trace: [ 0.000000] [<ffffffff81d02e5d>] dump_stack+0xc1/0x124 [ 0.000000] [<ffffffff81417caa>] panic+0x1aa/0x388 [ 0.000000] [<ffffffff81417b00>] ? percpu_up_read.constprop.45+0xe1/0xe1 [ 0.000000] [<ffffffff814fb180>] kasan_end_report+0x50/0x50 [ 0.000000] [<ffffffff814fb5fc>] kasan_report+0x15c/0x370 [ 0.000000] [<ffffffff848f9f6b>] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [<ffffffff814fb927>] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [<ffffffff848f9f6b>] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [<ffffffff8486cdb9>] free_all_bootmem+0xf2/0x24d [ 0.000000] [<ffffffff8486ccc7>] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [<ffffffff848a16c7>] ? dmar_table_detect+0x60/0x60 [ 0.000000] [<ffffffff83762050>] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [<ffffffff8484fa52>] mem_init+0x13/0x74 [ 0.000000] [<ffffffff8481b475>] start_kernel+0x31d/0x6e9 [ 0.000000] [<ffffffff8481b158>] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [<ffffffff8481a120>] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [<ffffffff8481a120>] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [<ffffffff8481a312>] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [<ffffffff8481a454>] 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) ) #8 SMP PREEMPT Sun Dec 31 11:52:08 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 1180235122 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 #8 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 6612028477195104 ffffffff84207ce8 ffffffff81d02e5d [ 0.000000] ffffea0000047ce0 ffffea0000047ce0 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d20 ffffffff814fb329 ffffea0000047ce0 [ 0.000000] Call Trace: [ 0.000000] [<ffffffff81d02e5d>] dump_stack+0xc1/0x124 [ 0.000000] [<ffffffff814fb329>] print_address_description+0x189/0x260 [ 0.000000] [<ffffffff814fb725>] kasan_report+0x285/0x370 [ 0.000000] [<ffffffff848f9f6b>] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [<ffffffff814fb927>] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [<ffffffff848f9f6b>] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [<ffffffff8486cdb9>] free_all_bootmem+0xf2/0x24d [ 0.000000] [<ffffffff8486ccc7>] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [<ffffffff848a16c7>] ? dmar_table_detect+0x60/0x60 [ 0.000000] [<ffffffff83762050>] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [<ffffffff8484fa52>] mem_init+0x13/0x74 [ 0.000000] [<ffffffff8481b475>] start_kernel+0x31d/0x6e9 [ 0.000000] [<ffffffff8481b158>] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [<ffffffff8481a120>] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [<ffffffff8481a120>] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [<ffffffff8481a312>] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [<ffffffff8481a454>] 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 #8 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 6612028477195104 ffffffff84207c40 ffffffff81d02e5d [ 0.000000] ffffffff83fb34b5 ffffffff84207d18 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d08 ffffffff81417caa 0000000041b58ab3 [ 0.000000] Call Trace: [ 0.000000] [<ffffffff81d02e5d>] dump_stack+0xc1/0x124 [ 0.000000] [<ffffffff81417caa>] panic+0x1aa/0x388 [ 0.000000] [<ffffffff81417b00>] ? percpu_up_read.constprop.45+0xe1/0xe1 [ 0.000000] [<ffffffff814fb180>] kasan_end_report+0x50/0x50 [ 0.000000] [<ffffffff814fb5fc>] kasan_report+0x15c/0x370 [ 0.000000] [<ffffffff848f9f6b>] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [<ffffffff814fb927>] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [<ffffffff848f9f6b>] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [<ffffffff8486cdb9>] free_all_bootmem+0xf2/0x24d [ 0.000000] [<ffffffff8486ccc7>] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [<ffffffff848a16c7>] ? dmar_table_detect+0x60/0x60 [ 0.000000] [<ffffffff83762050>] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [<ffffffff8484fa52>] mem_init+0x13/0x74 [ 0.000000] [<ffffffff8481b475>] start_kernel+0x31d/0x6e9 [ 0.000000] [<ffffffff8481b158>] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [<ffffffff8481a120>] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [<ffffffff8481a120>] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [<ffffffff8481a312>] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [<ffffffff8481a454>] x86_64_start_kernel+0x140/0x163 [ 0.000000] Rebooting in 86400 seconds.. [ 0.000000] ACPI MEMORY or I/O RESET_REG. [ 0.000000] ACPI MEMORY or I/O 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) ) #8 SMP PREEMPT Sun Dec 31 11:52:08 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 1214432928 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 #8 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 6aa605ef7bad546f ffffffff84207ce8 ffffffff81d02e5d [ 0.000000] ffffea0000047ce0 ffffea0000047ce0 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d20 ffffffff814fb329 ffffea0000047ce0 [ 0.000000] Call Trace: [ 0.000000] [<ffffffff81d02e5d>] dump_stack+0xc1/0x124 [ 0.000000] [<ffffffff814fb329>] print_address_description+0x189/0x260 [ 0.000000] [<ffffffff814fb725>] kasan_report+0x285/0x370 [ 0.000000] [<ffffffff848f9f6b>] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [<ffffffff814fb927>] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [<ffffffff848f9f6b>] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [<ffffffff8486cdb9>] free_all_bootmem+0xf2/0x24d [ 0.000000] [<ffffffff8486ccc7>] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [<ffffffff848a16c7>] ? dmar_table_detect+0x60/0x60 [ 0.000000] [<ffffffff83762050>] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [<ffffffff8484fa52>] mem_init+0x13/0x74 [ 0.000000] [<ffffffff8481b475>] start_kernel+0x31d/0x6e9 [ 0.000000] [<ffffffff8481b158>] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [<ffffffff8481a120>] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [<ffffffff8481a120>] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [<ffffffff8481a312>] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [<ffffffff8481a454>] 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 #8 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 6aa605ef7bad546f ffffffff84207c40 ffffffff81d02e5d [ 0.000000] ffffffff83fb34b5 ffffffff84207d18 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d08 ffffffff81417caa 0000000041b58ab3 [ 0.000000] Call Trace: [ 0.000000] [<ffffffff81d02e5d>] dump_stack+0xc1/0x124 [ 0.000000] [<ffffffff81417caa>] panic+0x1aa/0x388 [ 0.000000] [<ffffffff81417b00>] ? percpu_up_read.constprop.45+0xe1/0xe1 [ 0.000000] [<ffffffff814fb180>] kasan_end_report+0x50/0x50 [ 0.000000] [<ffffffff814fb5fc>] kasan_report+0x15c/0x370 [ 0.000000] [<ffffffff848f9f6b>] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [<ffffffff814fb927>] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [<ffffffff848f9f6b>] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [<ffffffff8486cdb9>] free_all_bootmem+0xf2/0x24d [ 0.000000] [<ffffffff8486ccc7>] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [<ffffffff848a16c7>] ? dmar_table_detect+0x60/0x60 [ 0.000000] [<ffffffff83762050>] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [<ffffffff8484fa52>] mem_init+0x13/0x74 [ 0.000000] [<ffffffff8481b475>] start_kernel+0x31d/0x6e9 [ 0.000000] [<ffffffff8481b158>] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [<ffffffff8481a120>] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [<ffffffff8481a120>] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [<ffffffff8481a312>] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [<ffffffff8481a454>] 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) ) #8 SMP PREEMPT Sun Dec 31 11:52:08 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 1274830592 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 #8 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 72e9e5d283f13452 ffffffff84207ce8 ffffffff81d02e5d [ 0.000000] ffffea0000047ce0 ffffea0000047ce0 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d20 ffffffff814fb329 ffffea0000047ce0 [ 0.000000] Call Trace: [ 0.000000] [<ffffffff81d02e5d>] dump_stack+0xc1/0x124 [ 0.000000] [<ffffffff814fb329>] print_address_description+0x189/0x260 [ 0.000000] [<ffffffff814fb725>] kasan_report+0x285/0x370 [ 0.000000] [<ffffffff848f9f6b>] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [<ffffffff814fb927>] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [<ffffffff848f9f6b>] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [<ffffffff8486cdb9>] free_all_bootmem+0xf2/0x24d [ 0.000000] [<ffffffff8486ccc7>] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [<ffffffff848a16c7>] ? dmar_table_detect+0x60/0x60 [ 0.000000] [<ffffffff83762050>] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [<ffffffff8484fa52>] mem_init+0x13/0x74 [ 0.000000] [<ffffffff8481b475>] start_kernel+0x31d/0x6e9 [ 0.000000] [<ffffffff8481b158>] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [<ffffffff8481a120>] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [<ffffffff8481a120>] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [<ffffffff8481a312>] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [<ffffffff8481a454>] 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 #8 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 72e9e5d283f13452 ffffffff84207c40 ffffffff81d02e5d [ 0.000000] ffffffff83fb34b5 ffffffff84207d18 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d08 ffffffff81417caa 0000000041b58ab3 [ 0.000000] Call Trace: [ 0.000000] [<ffffffff81d02e5d>] dump_stack+0xc1/0x124 [ 0.000000] [<ffffffff81417caa>] panic+0x1aa/0x388 [ 0.000000] [<ffffffff81417b00>] ? percpu_up_read.constprop.45+0xe1/0xe1 [ 0.000000] [<ffffffff814fb180>] kasan_end_report+0x50/0x50 [ 0.000000] [<ffffffff814fb5fc>] kasan_report+0x15c/0x370 [ 0.000000] [<ffffffff848f9f6b>] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [<ffffffff814fb927>] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [<ffffffff848f9f6b>] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [<ffffffff8486cdb9>] free_all_bootmem+0xf2/0x24d [ 0.000000] [<ffffffff8486ccc7>] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [<ffffffff848a16c7>] ? dmar_table_detect+0x60/0x60 [ 0.000000] [<ffffffff83762050>] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [<ffffffff8484fa52>] mem_init+0x13/0x74 [ 0.000000] [<ffffffff8481b475>] start_kernel+0x31d/0x6e9 [ 0.000000] [<ffffffff8481b158>] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [<ffffffff8481a120>] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [<ffffffff8481a120>] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [<ffffffff8481a312>] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [<ffffffff8481a454>] 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) ) #8 SMP PREEMPT Sun Dec 31 11:52:08 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 1195082168 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 #8 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 6818d91b7920279b ffffffff84207ce8 ffffffff81d02e5d [ 0.000000] ffffea0000047ce0 ffffea0000047ce0 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d20 ffffffff814fb329 ffffea0000047ce0 [ 0.000000] Call Trace: [ 0.000000] [<ffffffff81d02e5d>] dump_stack+0xc1/0x124 [ 0.000000] [<ffffffff814fb329>] print_address_description+0x189/0x260 [ 0.000000] [<ffffffff814fb725>] kasan_report+0x285/0x370 [ 0.000000] [<ffffffff848f9f6b>] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [<ffffffff814fb927>] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [<ffffffff848f9f6b>] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [<ffffffff8486cdb9>] free_all_bootmem+0xf2/0x24d [ 0.000000] [<ffffffff8486ccc7>] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [<ffffffff848a16c7>] ? dmar_table_detect+0x60/0x60 [ 0.000000] [<ffffffff83762050>] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [<ffffffff8484fa52>] mem_init+0x13/0x74 [ 0.000000] [<ffffffff8481b475>] start_kernel+0x31d/0x6e9 [ 0.000000] [<ffffffff8481b158>] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [<ffffffff8481a120>] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [<ffffffff8481a120>] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [<ffffffff8481a312>] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [<ffffffff8481a454>] 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 #8 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 6818d91b7920279b ffffffff84207c40 ffffffff81d02e5d [ 0.000000] ffffffff83fb34b5 ffffffff84207d18 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d08 ffffffff81417caa 0000000041b58ab3 [ 0.000000] Call Trace: [ 0.000000] [<ffffffff81d02e5d>] dump_stack+0xc1/0x124 [ 0.000000] [<ffffffff81417caa>] panic+0x1aa/0x388 [ 0.000000] [<ffffffff81417b00>] ? percpu_up_read.constprop.45+0xe1/0xe1 [ 0.000000] [<ffffffff814fb180>] kasan_end_report+0x50/0x50 [ 0.000000] [<ffffffff814fb5fc>] kasan_report+0x15c/0x370 [ 0.000000] [<ffffffff848f9f6b>] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [<ffffffff814fb927>] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [<ffffffff848f9f6b>] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [<ffffffff8486cdb9>] free_all_bootmem+0xf2/0x24d [ 0.000000] [<ffffffff8486ccc7>] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [<ffffffff848a16c7>] ? dmar_table_detect+0x60/0x60 [ 0.000000] [<ffffffff83762050>] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [<ffffffff8484fa52>] mem_init+0x13/0x74 [ 0.000000] [<ffffffff8481b475>] start_kernel+0x31d/0x6e9 [ 0.000000] [<ffffffff8481b158>] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [<ffffffff8481a120>] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [<ffffffff8481a120>] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [<ffffffff8481a312>] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [<ffffffff8481a454>] 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) ) #8 SMP PREEMPT Sun Dec 31 11:52:08 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 1215651048 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 #8 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 6a6e5a2b7b75a8ab ffffffff84207ce8 ffffffff81d02e5d [ 0.000000] ffffea0000047ce0 ffffea0000047ce0 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d20 ffffffff814fb329 ffffea0000047ce0 [ 0.000000] Call Trace: [ 0.000000] [<ffffffff81d02e5d>] dump_stack+0xc1/0x124 [ 0.000000] [<ffffffff814fb329>] print_address_description+0x189/0x260 [ 0.000000] [<ffffffff814fb725>] kasan_report+0x285/0x370 [ 0.000000] [<ffffffff848f9f6b>] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [<ffffffff814fb927>] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [<ffffffff848f9f6b>] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [<ffffffff8486cdb9>] free_all_bootmem+0xf2/0x24d [ 0.000000] [<ffffffff8486ccc7>] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [<ffffffff848a16c7>] ? dmar_table_detect+0x60/0x60 [ 0.000000] [<ffffffff83762050>] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [<ffffffff8484fa52>] mem_init+0x13/0x74 [ 0.000000] [<ffffffff8481b475>] start_kernel+0x31d/0x6e9 [ 0.000000] [<ffffffff8481b158>] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [<ffffffff8481a120>] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [<ffffffff8481a120>] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [<ffffffff8481a312>] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [<ffffffff8481a454>] 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 #8 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 6a6e5a2b7b75a8ab ffffffff84207c40 ffffffff81d02e5d [ 0.000000] ffffffff83fb34b5 ffffffff84207d18 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d08 ffffffff81417caa 0000000041b58ab3 [ 0.000000] Call Trace: [ 0.000000] [<ffffffff81d02e5d>] dump_stack+0xc1/0x124 [ 0.000000] [<ffffffff81417caa>] panic+0x1aa/0x388 [ 0.000000] [<ffffffff81417b00>] ? percpu_up_read.constprop.45+0xe1/0xe1 [ 0.000000] [<ffffffff814fb180>] kasan_end_report+0x50/0x50 [ 0.000000] [<ffffffff814fb5fc>] kasan_report+0x15c/0x370 [ 0.000000] [<ffffffff848f9f6b>] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [<ffffffff814fb927>] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [<ffffffff848f9f6b>] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [<ffffffff8486cdb9>] free_all_bootmem+0xf2/0x24d [ 0.000000] [<ffffffff8486ccc7>] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [<ffffffff848a16c7>] ? dmar_table_detect+0x60/0x60 [ 0.000000] [<ffffffff83762050>] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [<ffffffff8484fa52>] mem_init+0x13/0x74 [ 0.000000] [<ffffffff8481b475>] start_kernel+0x31d/0x6e9 [ 0.000000] [<ffffffff8481b158>] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [<ffffffff8481a120>] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [<ffffffff8481a120>] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [<ffffffff8481a312>] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [<ffffffff8481a454>] 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) ) #8 SMP PREEMPT Sun Dec 31 11:52:08 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 1123553578 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 #8 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 5e17a0226f1eeea2 ffffffff84207ce8 ffffffff81d02e5d [ 0.000000] ffffea0000047ce0 ffffea0000047ce0 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d20 ffffffff814fb329 ffffea0000047ce0 [ 0.000000] Call Trace: [ 0.000000] [<ffffffff81d02e5d>] dump_stack+0xc1/0x124 [ 0.000000] [<ffffffff814fb329>] print_address_description+0x189/0x260 [ 0.000000] [<ffffffff814fb725>] kasan_report+0x285/0x370 [ 0.000000] [<ffffffff848f9f6b>] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [<ffffffff814fb927>] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [<ffffffff848f9f6b>] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [<ffffffff8486cdb9>] free_all_bootmem+0xf2/0x24d [ 0.000000] [<ffffffff8486ccc7>] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [<ffffffff848a16c7>] ? dmar_table_detect+0x60/0x60 [ 0.000000] [<ffffffff83762050>] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [<ffffffff8484fa52>] mem_init+0x13/0x74 [ 0.000000] [<ffffffff8481b475>] start_kernel+0x31d/0x6e9 [ 0.000000] [<ffffffff8481b158>] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [<ffffffff8481a120>] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [<ffffffff8481a120>] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [<ffffffff8481a312>] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [<ffffffff8481a454>] 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 #8 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 5e17a0226f1eeea2 ffffffff84207c40 ffffffff81d02e5d [ 0.000000] ffffffff83fb34b5 ffffffff84207d18 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d08 ffffffff81417caa 0000000041b58ab3 [ 0.000000] Call Trace: [ 0.000000] [<ffffffff81d02e5d>] dump_stack+0xc1/0x124 [ 0.000000] [<ffffffff81417caa>] panic+0x1aa/0x388 [ 0.000000] [<ffffffff81417b00>] ? percpu_up_read.constprop.45+0xe1/0xe1 [ 0.000000] [<ffffffff814fb180>] kasan_end_report+0x50/0x50 [ 0.000000] [<ffffffff814fb5fc>] kasan_report+0x15c/0x370 [ 0.000000] [<ffffffff848f9f6b>] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [<ffffffff814fb927>] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [<ffffffff848f9f6b>] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [<ffffffff8486cdb9>] free_all_bootmem+0xf2/0x24d [ 0.000000] [<ffffffff8486ccc7>] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [<ffffffff848a16c7>] ? dmar_table_detect+0x60/0x60 [ 0.000000] [<ffffffff83762050>] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [<ffffffff8484fa52>] mem_init+0x13/0x74 [ 0.000000] [<ffffffff8481b475>] start_kernel+0x31d/0x6e9 [ 0.000000] [<ffffffff8481b158>] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [<ffffffff8481a120>] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [<ffffffff8481a120>] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [<ffffffff8481a312>] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [<ffffffff8481a454>] 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) ) #8 SMP PREEMPT Sun Dec 31 11:52:08 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 1163705114 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 #8 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 639de04a74a52eca ffffffff84207ce8 ffffffff81d02e5d [ 0.000000] ffffea0000047ce0 ffffea0000047ce0 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d20 ffffffff814fb329 ffffea0000047ce0 [ 0.000000] Call Trace: [ 0.000000] [<ffffffff81d02e5d>] dump_stack+0xc1/0x124 [ 0.000000] [<ffffffff814fb329>] print_address_description+0x189/0x260 [ 0.000000] [<ffffffff814fb725>] kasan_report+0x285/0x370 [ 0.000000] [<ffffffff848f9f6b>] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [<ffffffff814fb927>] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [<ffffffff848f9f6b>] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [<ffffffff8486cdb9>] free_all_bootmem+0xf2/0x24d [ 0.000000] [<ffffffff8486ccc7>] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [<ffffffff848a16c7>] ? dmar_table_detect+0x60/0x60 [ 0.000000] [<ffffffff83762050>] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [<ffffffff8484fa52>] mem_init+0x13/0x74 [ 0.000000] [<ffffffff8481b475>] start_kernel+0x31d/0x6e9 [ 0.000000] [<ffffffff8481b158>] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [<ffffffff8481a120>] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [<ffffffff8481a120>] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [<ffffffff8481a312>] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [<ffffffff8481a454>] 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 #8 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 639de04a74a52eca ffffffff84207c40 ffffffff81d02e5d [ 0.000000] ffffffff83fb34b5 ffffffff84207d18 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d08 ffffffff81417caa 0000000041b58ab3 [ 0.000000] Call Trace: [ 0.000000] [<ffffffff81d02e5d>] dump_stack+0xc1/0x124 [ 0.000000] [<ffffffff81417caa>] panic+0x1aa/0x388 [ 0.000000] [<ffffffff81417b00>] ? percpu_up_read.constprop.45+0xe1/0xe1 [ 0.000000] [<ffffffff814fb180>] kasan_end_report+0x50/0x50 [ 0.000000] [<ffffffff814fb5fc>] kasan_report+0x15c/0x370 [ 0.000000] [<ffffffff848f9f6b>] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [<ffffffff814fb927>] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [<ffffffff848f9f6b>] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [<ffffffff8486cdb9>] free_all_bootmem+0xf2/0x24d [ 0.000000] [<ffffffff8486ccc7>] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [<ffffffff848a16c7>] ? dmar_table_detect+0x60/0x60 [ 0.000000] [<ffffffff83762050>] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [<ffffffff8484fa52>] mem_init+0x13/0x74 [ 0.000000] [<ffffffff8481b475>] start_kernel+0x31d/0x6e9 [ 0.000000] [<ffffffff8481b158>] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [<ffffffff8481a120>] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [<ffffffff8481a120>] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [<ffffffff8481a312>] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [<ffffffff8481a454>] 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) ) #8 SMP PREEMPT Sun Dec 31 11:52:08 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 1125037815 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 #8 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 5e7e89546f85d7d4 ffffffff84207ce8 ffffffff81d02e5d [ 0.000000] ffffea0000047ce0 ffffea0000047ce0 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d20 ffffffff814fb329 ffffea0000047ce0 [ 0.000000] Call Trace: [ 0.000000] [<ffffffff81d02e5d>] dump_stack+0xc1/0x124 [ 0.000000] [<ffffffff814fb329>] print_address_description+0x189/0x260 [ 0.000000] [<ffffffff814fb725>] kasan_report+0x285/0x370 [ 0.000000] [<ffffffff848f9f6b>] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [<ffffffff814fb927>] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [<ffffffff848f9f6b>] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [<ffffffff8486cdb9>] free_all_bootmem+0xf2/0x24d [ 0.000000] [<ffffffff8486ccc7>] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [<ffffffff848a16c7>] ? dmar_table_detect+0x60/0x60 [ 0.000000] [<ffffffff83762050>] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [<ffffffff8484fa52>] mem_init+0x13/0x74 [ 0.000000] [<ffffffff8481b475>] start_kernel+0x31d/0x6e9 [ 0.000000] [<ffffffff8481b158>] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [<ffffffff8481a120>] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [<ffffffff8481a120>] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [<ffffffff8481a312>] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [<ffffffff8481a454>] 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 #8 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 5e7e89546f85d7d4 ffffffff84207c40 ffffffff81d02e5d [ 0.000000] ffffffff83fb34b5 ffffffff84207d18 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d08 ffffffff81417caa 0000000041b58ab3 [ 0.000000] Call Trace: [ 0.000000] [<ffffffff81d02e5d>] dump_stack+0xc1/0x124 [ 0.000000] [<ffffffff81417caa>] panic+0x1aa/0x388 [ 0.000000] [<ffffffff81417b00>] ? percpu_up_read.constprop.45+0xe1/0xe1 [ 0.000000] [<ffffffff814fb180>] kasan_end_report+0x50/0x50 [ 0.000000] [<ffffffff814fb5fc>] kasan_report+0x15c/0x370 [ 0.000000] [<ffffffff848f9f6b>] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [<ffffffff814fb927>] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [<ffffffff848f9f6b>] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [<ffffffff8486cdb9>] free_all_bootmem+0xf2/0x24d [ 0.000000] [<ffffffff8486ccc7>] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [<ffffffff848a16c7>] ? dmar_table_detect+0x60/0x60 [ 0.000000] [<ffffffff83762050>] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [<ffffffff8484fa52>] mem_init+0x13/0x74 [ 0.000000] [<ffffffff8481b475>] start_kernel+0x31d/0x6e9 [ 0.000000] [<ffffffff8481b158>] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [<ffffffff8481a120>] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [<ffffffff8481a120>] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [<ffffffff8481a312>] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [<ffffffff8481a454>] 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) ) #8 SMP PREEMPT Sun Dec 31 11:52:08 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 1152948577 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 #8 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 6249d51173512391 ffffffff84207ce8 ffffffff81d02e5d [ 0.000000] ffffea0000047ce0 ffffea0000047ce0 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d20 ffffffff814fb329 ffffea0000047ce0 [ 0.000000] Call Trace: [ 0.000000] [<ffffffff81d02e5d>] dump_stack+0xc1/0x124 [ 0.000000] [<ffffffff814fb329>] print_address_description+0x189/0x260 [ 0.000000] [<ffffffff814fb725>] kasan_report+0x285/0x370 [ 0.000000] [<ffffffff848f9f6b>] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [<ffffffff814fb927>] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [<ffffffff848f9f6b>] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [<ffffffff8486cdb9>] free_all_bootmem+0xf2/0x24d [ 0.000000] [<ffffffff8486ccc7>] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [<ffffffff848a16c7>] ? dmar_table_detect+0x60/0x60 [ 0.000000] [<ffffffff83762050>] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [<ffffffff8484fa52>] mem_init+0x13/0x74 [ 0.000000] [<ffffffff8481b475>] start_kernel+0x31d/0x6e9 [ 0.000000] [<ffffffff8481b158>] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [<ffffffff8481a120>] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [<ffffffff8481a120>] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [<ffffffff8481a312>] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [<ffffffff8481a454>] 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 #8 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 6249d51173512391 ffffffff84207c40 ffffffff81d02e5d [ 0.000000] ffffffff83fb34b5 ffffffff84207d18 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d08 ffffffff81417caa 0000000041b58ab3 [ 0.000000] Call Trace: [ 0.000000] [<ffffffff81d02e5d>] dump_stack+0xc1/0x124 [ 0.000000] [<ffffffff81417caa>] panic+0x1aa/0x388 [ 0.000000] [<ffffffff81417b00>] ? percpu_up_read.constprop.45+0xe1/0xe1 [ 0.000000] [<ffffffff814fb180>] kasan_end_report+0x50/0x50 [ 0.000000] [<ffffffff814fb5fc>] kasan_report+0x15c/0x370 [ 0.000000] [<ffffffff848f9f6b>] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [<ffffffff814fb927>] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [<ffffffff848f9f6b>] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [<ffffffff8486cdb9>] free_all_bootmem+0xf2/0x24d [ 0.000000] [<ffffffff8486ccc7>] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [<ffffffff848a16c7>] ? dmar_table_detect+0x60/0x60 [ 0.000000] [<ffffffff83762050>] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [<ffffffff8484fa52>] mem_init+0x13/0x74 [ 0.000000] [<ffffffff8481b475>] start_kernel+0x31d/0x6e9 [ 0.000000] [<ffffffff8481b158>] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [<ffffffff8481a120>] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [<ffffffff8481a120>] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [<ffffffff8481a312>] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [<ffffffff8481a454>] 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) ) #8 SMP PREEMPT Sun Dec 31 11:52:08 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 1174211846 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 #8 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 653a57f07641a670 ffffffff84207ce8 ffffffff81d02e5d [ 0.000000] ffffea0000047ce0 ffffea0000047ce0 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d20 ffffffff814fb329 ffffea0000047ce0 [ 0.000000] Call Trace: [ 0.000000] [<ffffffff81d02e5d>] dump_stack+0xc1/0x124 [ 0.000000] [<ffffffff814fb329>] print_address_description+0x189/0x260 [ 0.000000] [<ffffffff814fb725>] kasan_report+0x285/0x370 [ 0.000000] [<ffffffff848f9f6b>] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [<ffffffff814fb927>] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [<ffffffff848f9f6b>] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [<ffffffff8486cdb9>] free_all_bootmem+0xf2/0x24d [ 0.000000] [<ffffffff8486ccc7>] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [<ffffffff848a16c7>] ? dmar_table_detect+0x60/0x60 [ 0.000000] [<ffffffff83762050>] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [<ffffffff8484fa52>] mem_init+0x13/0x74 [ 0.000000] [<ffffffff8481b475>] start_kernel+0x31d/0x6e9 [ 0.000000] [<ffffffff8481b158>] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [<ffffffff8481a120>] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [<ffffffff8481a120>] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [<ffffffff8481a312>] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [<ffffffff8481a454>] 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 #8 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 653a57f07641a670 ffffffff84207c40 ffffffff81d02e5d [ 0.000000] ffffffff83fb34b5 ffffffff84207d18 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d08 ffffffff81417caa 0000000041b58ab3 [ 0.000000] Call Trace: [ 0.000000] [<ffffffff81d02e5d>] dump_stack+0xc1/0x124 [ 0.000000] [<ffffffff81417caa>] panic+0x1aa/0x388 [ 0.000000] [<ffffffff81417b00>] ? percpu_up_read.constprop.45+0xe1/0xe1 [ 0.000000] [<ffffffff814fb180>] kasan_end_report+0x50/0x50 [ 0.000000] [<ffffffff814fb5fc>] kasan_report+0x15c/0x370 [ 0.000000] [<ffffffff848f9f6b>] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [<ffffffff814fb927>] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [<ffffffff848f9f6b>] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [<ffffffff8486cdb9>] free_all_bootmem+0xf2/0x24d [ 0.000000] [<ffffffff8486ccc7>] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [<ffffffff848a16c7>] ? dmar_table_detect+0x60/0x60 [ 0.000000] [<ffffffff83762050>] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [<ffffffff8484fa52>] mem_init+0x13/0x74 [ 0.000000] [<ffffffff8481b475>] start_kernel+0x31d/0x6e9 [ 0.000000] [<ffffffff8481b158>] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [<ffffffff8481a120>] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [<ffffffff8481a120>] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [<ffffffff8481a312>] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [<ffffffff8481a454>] 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) ) #8 SMP PREEMPT Sun Dec 31 11:52:08 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 1212698394 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 #8 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 6a7ecb197b861999 ffffffff84207ce8 ffffffff81d02e5d [ 0.000000] ffffea0000047ce0 ffffea0000047ce0 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d20 ffffffff814fb329 ffffea0000047ce0 [ 0.000000] Call Trace: [ 0.000000] [<ffffffff81d02e5d>] dump_stack+0xc1/0x124 [ 0.000000] [<ffffffff814fb329>] print_address_description+0x189/0x260 [ 0.000000] [<ffffffff814fb725>] kasan_report+0x285/0x370 [ 0.000000] [<ffffffff848f9f6b>] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [<ffffffff814fb927>] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [<ffffffff848f9f6b>] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [<ffffffff8486cdb9>] free_all_bootmem+0xf2/0x24d [ 0.000000] [<ffffffff8486ccc7>] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [<ffffffff848a16c7>] ? dmar_table_detect+0x60/0x60 [ 0.000000] [<ffffffff83762050>] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [<ffffffff8484fa52>] mem_init+0x13/0x74 [ 0.000000] [<ffffffff8481b475>] start_kernel+0x31d/0x6e9 [ 0.000000] [<ffffffff8481b158>] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [<ffffffff8481a120>] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [<ffffffff8481a120>] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [<ffffffff8481a312>] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [<ffffffff8481a454>] 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 #8 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 6a7ecb197b861999 ffffffff84207c40 ffffffff81d02e5d [ 0.000000] ffffffff83fb34b5 ffffffff84207d18 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d08 ffffffff81417caa 0000000041b58ab3 [ 0.000000] Call Trace: [ 0.000000] [<ffffffff81d02e5d>] dump_stack+0xc1/0x124 [ 0.000000] [<ffffffff81417caa>] panic+0x1aa/0x388 [ 0.000000] [<ffffffff81417b00>] ? percpu_up_read.constprop.45+0xe1/0xe1 [ 0.000000] [<ffffffff814fb180>] kasan_end_report+0x50/0x50 [ 0.000000] [<ffffffff814fb5fc>] kasan_report+0x15c/0x370 [ 0.000000] [<ffffffff848f9f6b>] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [<ffffffff814fb927>] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [<ffffffff848f9f6b>] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [<ffffffff8486cdb9>] free_all_bootmem+0xf2/0x24d [ 0.000000] [<ffffffff8486ccc7>] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [<ffffffff848a16c7>] ? dmar_table_detect+0x60/0x60 [ 0.000000] [<ffffffff83762050>] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [<ffffffff8484fa52>] mem_init+0x13/0x74 [ 0.000000] [<ffffffff8481b475>] start_kernel+0x31d/0x6e9 [ 0.000000] [<ffffffff8481b158>] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [<ffffffff8481a120>] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [<ffffffff8481a120>] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [<ffffffff8481a312>] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [<ffffffff8481a454>] 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) ) #8 SMP PREEMPT Sun Dec 31 11:52:08 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 1134864943 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 #8 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 5fc36b8970caba09 ffffffff84207ce8 ffffffff81d02e5d [ 0.000000] ffffea0000047ce0 ffffea0000047ce0 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d20 ffffffff814fb329 ffffea0000047ce0 [ 0.000000] Call Trace: [ 0.000000] [<ffffffff81d02e5d>] dump_stack+0xc1/0x124 [ 0.000000] [<ffffffff814fb329>] print_address_description+0x189/0x260 [ 0.000000] [<ffffffff814fb725>] kasan_report+0x285/0x370 [ 0.000000] [<ffffffff848f9f6b>] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [<ffffffff814fb927>] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [<ffffffff848f9f6b>] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [<ffffffff8486cdb9>] free_all_bootmem+0xf2/0x24d [ 0.000000] [<ffffffff8486ccc7>] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [<ffffffff848a16c7>] ? dmar_table_detect+0x60/0x60 [ 0.000000] [<ffffffff83762050>] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [<ffffffff8484fa52>] mem_init+0x13/0x74 [ 0.000000] [<ffffffff8481b475>] start_kernel+0x31d/0x6e9 [ 0.000000] [<ffffffff8481b158>] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [<ffffffff8481a120>] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [<ffffffff8481a120>] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [<ffffffff8481a312>] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [<ffffffff8481a454>] 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 #8 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 5fc36b8970caba09 ffffffff84207c40 ffffffff81d02e5d [ 0.000000] ffffffff83fb34b5 ffffffff84207d18 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d08 ffffffff81417caa 0000000041b58ab3 [ 0.000000] Call Trace: [ 0.000000] [<ffffffff81d02e5d>] dump_stack+0xc1/0x124 [ 0.000000] [<ffffffff81417caa>] panic+0x1aa/0x388 [ 0.000000] [<ffffffff81417b00>] ? percpu_up_read.constprop.45+0xe1/0xe1 [ 0.000000] [<ffffffff814fb180>] kasan_end_report+0x50/0x50 [ 0.000000] [<ffffffff814fb5fc>] kasan_report+0x15c/0x370 [ 0.000000] [<ffffffff848f9f6b>] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [<ffffffff814fb927>] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [<ffffffff848f9f6b>] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [<ffffffff8486cdb9>] free_all_bootmem+0xf2/0x24d [ 0.000000] [<ffffffff8486ccc7>] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [<ffffffff848a16c7>] ? dmar_table_detect+0x60/0x60 [ 0.000000] [<ffffffff83762050>] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [<ffffffff8484fa52>] mem_init+0x13/0x74 [ 0.000000] [<ffffffff8481b475>] start_kernel+0x31d/0x6e9 [ 0.000000] [<ffffffff8481b158>] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [<ffffffff8481a120>] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [<ffffffff8481a120>] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [<ffffffff8481a312>] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [<ffffffff8481a454>] 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) ) #8 SMP PREEMPT Sun Dec 31 11:52:08 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 1132422946 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 #8 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 5f756843707cb6c3 ffffffff84207ce8 ffffffff81d02e5d [ 0.000000] ffffea0000047ce0 ffffea0000047ce0 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d20 ffffffff814fb329 ffffea0000047ce0 [ 0.000000] Call Trace: [ 0.000000] [<ffffffff81d02e5d>] dump_stack+0xc1/0x124 [ 0.000000] [<ffffffff814fb329>] print_address_description+0x189/0x260 [ 0.000000] [<ffffffff814fb725>] kasan_report+0x285/0x370 [ 0.000000] [<ffffffff848f9f6b>] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [<ffffffff814fb927>] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [<ffffffff848f9f6b>] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [<ffffffff8486cdb9>] free_all_bootmem+0xf2/0x24d [ 0.000000] [<ffffffff8486ccc7>] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [<ffffffff848a16c7>] ? dmar_table_detect+0x60/0x60 [ 0.000000] [<ffffffff83762050>] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [<ffffffff8484fa52>] mem_init+0x13/0x74 [ 0.000000] [<ffffffff8481b475>] start_kernel+0x31d/0x6e9 [ 0.000000] [<ffffffff8481b158>] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [<ffffffff8481a120>] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [<ffffffff8481a120>] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [<ffffffff8481a312>] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [<ffffffff8481a454>] 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 #8 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 5f756843707cb6c3 ffffffff84207c40 ffffffff81d02e5d [ 0.000000] ffffffff83fb34b5 ffffffff84207d18 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d08 ffffffff81417caa 0000000041b58ab3 [ 0.000000] Call Trace: [ 0.000000] [<ffffffff81d02e5d>] dump_stack+0xc1/0x124 [ 0.000000] [<ffffffff81417caa>] panic+0x1aa/0x388 [ 0.000000] [<ffffffff81417b00>] ? percpu_up_read.constprop.45+0xe1/0xe1 [ 0.000000] [<ffffffff814fb180>] kasan_end_report+0x50/0x50 [ 0.000000] [<ffffffff814fb5fc>] kasan_report+0x15c/0x370 [ 0.000000] [<ffffffff848f9f6b>] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [<ffffffff814fb927>] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [<ffffffff848f9f6b>] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [<ffffffff8486cdb9>] free_all_bootmem+0xf2/0x24d [ 0.000000] [<ffffffff8486ccc7>] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [<ffffffff848a16c7>] ? dmar_table_detect+0x60/0x60 [ 0.000000] [<ffffffff83762050>] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [<ffffffff8484fa52>] mem_init+0x13/0x74 [ 0.000000] [<ffffffff8481b475>] start_kernel+0x31d/0x6e9 [ 0.000000] [<ffffffff8481b158>] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [<ffffffff8481a120>] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [<ffffffff8481a120>] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [<ffffffff8481a312>] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [<ffffffff8481a454>] 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) ) #8 SMP PREEMPT Sun Dec 31 11:52:08 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 1148186350 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 #8 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 61a21b0872a96988 ffffffff84207ce8 ffffffff81d02e5d [ 0.000000] ffffea0000047ce0 ffffea0000047ce0 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d20 ffffffff814fb329 ffffea0000047ce0 [ 0.000000] Call Trace: [ 0.000000] [<ffffffff81d02e5d>] dump_stack+0xc1/0x124 [ 0.000000] [<ffffffff814fb329>] print_address_description+0x189/0x260 [ 0.000000] [<ffffffff814fb725>] kasan_report+0x285/0x370 [ 0.000000] [<ffffffff848f9f6b>] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [<ffffffff814fb927>] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [<ffffffff848f9f6b>] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [<ffffffff8486cdb9>] free_all_bootmem+0xf2/0x24d [ 0.000000] [<ffffffff8486ccc7>] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [<ffffffff848a16c7>] ? dmar_table_detect+0x60/0x60 [ 0.000000] [<ffffffff83762050>] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [<ffffffff8484fa52>] mem_init+0x13/0x74 [ 0.000000] [<ffffffff8481b475>] start_kernel+0x31d/0x6e9 [ 0.000000] [<ffffffff8481b158>] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [<ffffffff8481a120>] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [<ffffffff8481a120>] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [<ffffffff8481a312>] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [<ffffffff8481a454>] 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 #8 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 61a21b0872a96988 ffffffff84207c40 ffffffff81d02e5d [ 0.000000] ffffffff83fb34b5 ffffffff84207d18 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d08 ffffffff81417caa 0000000041b58ab3 [ 0.000000] Call Trace: [ 0.000000] [<ffffffff81d02e5d>] dump_stack+0xc1/0x124 [ 0.000000] [<ffffffff81417caa>] panic+0x1aa/0x388 [ 0.000000] [<ffffffff81417b00>] ? percpu_up_read.constprop.45+0xe1/0xe1 [ 0.000000] [<ffffffff814fb180>] kasan_end_report+0x50/0x50 [ 0.000000] [<ffffffff814fb5fc>] kasan_report+0x15c/0x370 [ 0.000000] [<ffffffff848f9f6b>] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [<ffffffff814fb927>] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [<ffffffff848f9f6b>] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [<ffffffff8486cdb9>] free_all_bootmem+0xf2/0x24d [ 0.000000] [<ffffffff8486ccc7>] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [<ffffffff848a16c7>] ? dmar_table_detect+0x60/0x60 [ 0.000000] [<ffffffff83762050>] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [<ffffffff8484fa52>] mem_init+0x13/0x74 [ 0.000000] [<ffffffff8481b475>] start_kernel+0x31d/0x6e9 [ 0.000000] [<ffffffff8481b158>] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [<ffffffff8481a120>] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [<ffffffff8481a120>] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [<ffffffff8481a312>] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [<ffffffff8481a454>] 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) ) #8 SMP PREEMPT Sun Dec 31 11:52:08 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 1153109464 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 #8 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 5fd66cea70ddbb6a ffffffff84207ce8 ffffffff81d02e5d [ 0.000000] ffffea0000047ce0 ffffea0000047ce0 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d20 ffffffff814fb329 ffffea0000047ce0 [ 0.000000] Call Trace: [ 0.000000] [<ffffffff81d02e5d>] dump_stack+0xc1/0x124 [ 0.000000] [<ffffffff814fb329>] print_address_description+0x189/0x260 [ 0.000000] [<ffffffff814fb725>] kasan_report+0x285/0x370 [ 0.000000] [<ffffffff848f9f6b>] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [<ffffffff814fb927>] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [<ffffffff848f9f6b>] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [<ffffffff8486cdb9>] free_all_bootmem+0xf2/0x24d [ 0.000000] [<ffffffff8486ccc7>] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [<ffffffff848a16c7>] ? dmar_table_detect+0x60/0x60 [ 0.000000] [<ffffffff83762050>] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [<ffffffff8484fa52>] mem_init+0x13/0x74 [ 0.000000] [<ffffffff8481b475>] start_kernel+0x31d/0x6e9 [ 0.000000] [<ffffffff8481b158>] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [<ffffffff8481a120>] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [<ffffffff8481a120>] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [<ffffffff8481a312>] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [<ffffffff8481a454>] 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 #8 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 5fd66cea70ddbb6a ffffffff84207c40 ffffffff81d02e5d [ 0.000000] ffffffff83fb34b5 ffffffff84207d18 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d08 ffffffff81417caa 0000000041b58ab3 [ 0.000000] Call Trace: [ 0.000000] [<ffffffff81d02e5d>] dump_stack+0xc1/0x124 [ 0.000000] [<ffffffff81417caa>] panic+0x1aa/0x388 [ 0.000000] [<ffffffff81417b00>] ? percpu_up_read.constprop.45+0xe1/0xe1 [ 0.000000] [<ffffffff814fb180>] kasan_end_report+0x50/0x50 [ 0.000000] [<ffffffff814fb5fc>] kasan_report+0x15c/0x370 [ 0.000000] [<ffffffff848f9f6b>] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [<ffffffff814fb927>] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [<ffffffff848f9f6b>] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [<ffffffff8486cdb9>] free_all_bootmem+0xf2/0x24d [ 0.000000] [<ffffffff8486ccc7>] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [<ffffffff848a16c7>] ? dmar_table_detect+0x60/0x60 [ 0.000000] [<ffffffff83762050>] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [<ffffffff8484fa52>] mem_init+0x13/0x74 [ 0.000000] [<ffffffff8481b475>] start_kernel+0x31d/0x6e9 [ 0.000000] [<ffffffff8481b158>] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [<ffffffff8481a120>] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [<ffffffff8481a120>] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [<ffffffff8481a312>] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [<ffffffff8481a454>] 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) ) #8 SMP PREEMPT Sun Dec 31 11:52:08 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 1136725715 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 #8 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 6000283f710776bf ffffffff84207ce8 ffffffff81d02e5d [ 0.000000] ffffea0000047ce0 ffffea0000047ce0 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d20 ffffffff814fb329 ffffea0000047ce0 [ 0.000000] Call Trace: [ 0.000000] [<ffffffff81d02e5d>] dump_stack+0xc1/0x124 [ 0.000000] [<ffffffff814fb329>] print_address_description+0x189/0x260 [ 0.000000] [<ffffffff814fb725>] kasan_report+0x285/0x370 [ 0.000000] [<ffffffff848f9f6b>] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [<ffffffff814fb927>] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [<ffffffff848f9f6b>] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [<ffffffff8486cdb9>] free_all_bootmem+0xf2/0x24d [ 0.000000] [<ffffffff8486ccc7>] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [<ffffffff848a16c7>] ? dmar_table_detect+0x60/0x60 [ 0.000000] [<ffffffff83762050>] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [<ffffffff8484fa52>] mem_init+0x13/0x74 [ 0.000000] [<ffffffff8481b475>] start_kernel+0x31d/0x6e9 [ 0.000000] [<ffffffff8481b158>] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [<ffffffff8481a120>] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [<ffffffff8481a120>] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [<ffffffff8481a312>] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [<ffffffff8481a454>] 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 #8 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 6000283f710776bf ffffffff84207c40 ffffffff81d02e5d [ 0.000000] ffffffff83fb34b5 ffffffff84207d18 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d08 ffffffff81417caa 0000000041b58ab3 [ 0.000000] Call Trace: [ 0.000000] [<ffffffff81d02e5d>] dump_stack+0xc1/0x124 [ 0.000000] [<ffffffff81417caa>] panic+0x1aa/0x388 [ 0.000000] [<ffffffff81417b00>] ? percpu_up_read.constprop.45+0xe1/0xe1 [ 0.000000] [<ffffffff814fb180>] kasan_end_report+0x50/0x50 [ 0.000000] [<ffffffff814fb5fc>] kasan_report+0x15c/0x370 [ 0.000000] [<ffffffff848f9f6b>] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [<ffffffff814fb927>] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [<ffffffff848f9f6b>] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [<ffffffff8486cdb9>] free_all_bootmem+0xf2/0x24d [ 0.000000] [<ffffffff8486ccc7>] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [<ffffffff848a16c7>] ? dmar_table_detect+0x60/0x60 [ 0.000000] [<ffffffff83762050>] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [<ffffffff8484fa52>] mem_init+0x13/0x74 [ 0.000000] [<ffffffff8481b475>] start_kernel+0x31d/0x6e9 [ 0.000000] [<ffffffff8481b158>] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [<ffffffff8481a120>] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [<ffffffff8481a120>] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [<ffffffff8481a312>] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [<ffffffff8481a454>] 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) ) #8 SMP PREEMPT Sun Dec 31 11:52:08 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 1198510268 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 #8 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 6862cedf796a1d5f ffffffff84207ce8 ffffffff81d02e5d [ 0.000000] ffffea0000047ce0 ffffea0000047ce0 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d20 ffffffff814fb329 ffffea0000047ce0 [ 0.000000] Call Trace: [ 0.000000] [<ffffffff81d02e5d>] dump_stack+0xc1/0x124 [ 0.000000] [<ffffffff814fb329>] print_address_description+0x189/0x260 [ 0.000000] [<ffffffff814fb725>] kasan_report+0x285/0x370 [ 0.000000] [<ffffffff848f9f6b>] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [<ffffffff814fb927>] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [<ffffffff848f9f6b>] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [<ffffffff8486cdb9>] free_all_bootmem+0xf2/0x24d [ 0.000000] [<ffffffff8486ccc7>] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [<ffffffff848a16c7>] ? dmar_table_detect+0x60/0x60 [ 0.000000] [<ffffffff83762050>] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [<ffffffff8484fa52>] mem_init+0x13/0x74 [ 0.000000] [<ffffffff8481b475>] start_kernel+0x31d/0x6e9 [ 0.000000] [<ffffffff8481b158>] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [<ffffffff8481a120>] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [<ffffffff8481a120>] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [<ffffffff8481a312>] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [<ffffffff8481a454>] 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 #8 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 6862cedf796a1d5f ffffffff84207c40 ffffffff81d02e5d [ 0.000000] ffffffff83fb34b5 ffffffff84207d18 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d08 ffffffff81417caa 0000000041b58ab3 [ 0.000000] Call Trace: [ 0.000000] [<ffffffff81d02e5d>] dump_stack+0xc1/0x124 [ 0.000000] [<ffffffff81417caa>] panic+0x1aa/0x388 [ 0.000000] [<ffffffff81417b00>] ? percpu_up_read.constprop.45+0xe1/0xe1 [ 0.000000] [<ffffffff814fb180>] kasan_end_report+0x50/0x50 [ 0.000000] [<ffffffff814fb5fc>] kasan_report+0x15c/0x370 [ 0.000000] [<ffffffff848f9f6b>] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [<ffffffff814fb927>] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [<ffffffff848f9f6b>] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [<ffffffff8486cdb9>] free_all_bootmem+0xf2/0x24d [ 0.000000] [<ffffffff8486ccc7>] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [<ffffffff848a16c7>] ? dmar_table_detect+0x60/0x60 [ 0.000000] [<ffffffff83762050>] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [<ffffffff8484fa52>] mem_init+0x13/0x74 [ 0.000000] [<ffffffff8481b475>] start_kernel+0x31d/0x6e9 [ 0.000000] [<ffffffff8481b158>] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [<ffffffff8481a120>] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [<ffffffff8481a120>] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [<ffffffff8481a312>] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [<ffffffff8481a454>] 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) ) #8 SMP PREEMPT Sun Dec 31 11:52:08 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 1161396181 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 #8 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 636d1c9774746b17 ffffffff84207ce8 ffffffff81d02e5d [ 0.000000] ffffea0000047ce0 ffffea0000047ce0 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d20 ffffffff814fb329 ffffea0000047ce0 [ 0.000000] Call Trace: [ 0.000000] [<ffffffff81d02e5d>] dump_stack+0xc1/0x124 [ 0.000000] [<ffffffff814fb329>] print_address_description+0x189/0x260 [ 0.000000] [<ffffffff814fb725>] kasan_report+0x285/0x370 [ 0.000000] [<ffffffff848f9f6b>] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [<ffffffff814fb927>] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [<ffffffff848f9f6b>] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [<ffffffff8486cdb9>] free_all_bootmem+0xf2/0x24d [ 0.000000] [<ffffffff8486ccc7>] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [<ffffffff848a16c7>] ? dmar_table_detect+0x60/0x60 [ 0.000000] [<ffffffff83762050>] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [<ffffffff8484fa52>] mem_init+0x13/0x74 [ 0.000000] [<ffffffff8481b475>] start_kernel+0x31d/0x6e9 [ 0.000000] [<ffffffff8481b158>] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [<ffffffff8481a120>] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [<ffffffff8481a120>] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [<ffffffff8481a312>] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [<ffffffff8481a454>] 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 #8 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 636d1c9774746b17 ffffffff84207c40 ffffffff81d02e5d [ 0.000000] ffffffff83fb34b5 ffffffff84207d18 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d08 ffffffff81417caa 0000000041b58ab3 [ 0.000000] Call Trace: [ 0.000000] [<ffffffff81d02e5d>] dump_stack+0xc1/0x124 [ 0.000000] [<ffffffff81417caa>] panic+0x1aa/0x388 [ 0.000000] [<ffffffff81417b00>] ? percpu_up_read.constprop.45+0xe1/0xe1 [ 0.000000] [<ffffffff814fb180>] kasan_end_report+0x50/0x50 [ 0.000000] [<ffffffff814fb5fc>] kasan_report+0x15c/0x370 [ 0.000000] [<ffffffff848f9f6b>] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [<ffffffff814fb927>] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [<ffffffff848f9f6b>] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [<ffffffff8486cdb9>] free_all_bootmem+0xf2/0x24d [ 0.000000] [<ffffffff8486ccc7>] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [<ffffffff848a16c7>] ? dmar_table_detect+0x60/0x60 [ 0.000000] [<ffffffff83762050>] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [<ffffffff8484fa52>] mem_init+0x13/0x74 [ 0.000000] [<ffffffff8481b475>] start_kernel+0x31d/0x6e9 [ 0.000000] [<ffffffff8481b158>] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [<ffffffff8481a120>] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [<ffffffff8481a120>] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [<ffffffff8481a312>] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [<ffffffff8481a454>] 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) ) #8 SMP PREEMPT Sun Dec 31 11:52:08 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 1113889738 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 #8 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 5ced12a86df46128 ffffffff84207ce8 ffffffff81d02e5d [ 0.000000] ffffea0000047ce0 ffffea0000047ce0 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d20 ffffffff814fb329 ffffea0000047ce0 [ 0.000000] Call Trace: [ 0.000000] [<ffffffff81d02e5d>] dump_stack+0xc1/0x124 [ 0.000000] [<ffffffff814fb329>] print_address_description+0x189/0x260 [ 0.000000] [<ffffffff814fb725>] kasan_report+0x285/0x370 [ 0.000000] [<ffffffff848f9f6b>] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [<ffffffff814fb927>] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [<ffffffff848f9f6b>] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [<ffffffff8486cdb9>] free_all_bootmem+0xf2/0x24d [ 0.000000] [<ffffffff8486ccc7>] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [<ffffffff848a16c7>] ? dmar_table_detect+0x60/0x60 [ 0.000000] [<ffffffff83762050>] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [<ffffffff8484fa52>] mem_init+0x13/0x74 [ 0.000000] [<ffffffff8481b475>] start_kernel+0x31d/0x6e9 [ 0.000000] [<ffffffff8481b158>] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [<ffffffff8481a120>] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [<ffffffff8481a120>] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [<ffffffff8481a312>] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [<ffffffff8481a454>] 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 #8 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 5ced12a86df46128 ffffffff84207c40 ffffffff81d02e5d [ 0.000000] ffffffff83fb34b5 ffffffff84207d18 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d08 ffffffff81417caa 0000000041b58ab3 [ 0.000000] Call Trace: [ 0.000000] [<ffffffff81d02e5d>] dump_stack+0xc1/0x124 [ 0.000000] [<ffffffff81417caa>] panic+0x1aa/0x388 [ 0.000000] [<ffffffff81417b00>] ? percpu_up_read.constprop.45+0xe1/0xe1 [ 0.000000] [<ffffffff814fb180>] kasan_end_report+0x50/0x50 [ 0.000000] [<ffffffff814fb5fc>] kasan_report+0x15c/0x370 [ 0.000000] [<ffffffff848f9f6b>] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [<ffffffff814fb927>] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [<ffffffff848f9f6b>] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [<ffffffff8486cdb9>] free_all_bootmem+0xf2/0x24d [ 0.000000] [<ffffffff8486ccc7>] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [<ffffffff848a16c7>] ? dmar_table_detect+0x60/0x60 [ 0.000000] [<ffffffff83762050>] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [<ffffffff8484fa52>] mem_init+0x13/0x74 [ 0.000000] [<ffffffff8481b475>] start_kernel+0x31d/0x6e9 [ 0.000000] [<ffffffff8481b158>] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [<ffffffff8481a120>] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [<ffffffff8481a120>] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [<ffffffff8481a312>] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [<ffffffff8481a454>] 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) ) #8 SMP PREEMPT Sun Dec 31 11:52:08 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 1115705001 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 #8 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 5d31bcfd6e390b7d ffffffff84207ce8 ffffffff81d02e5d [ 0.000000] ffffea0000047ce0 ffffea0000047ce0 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d20 ffffffff814fb329 ffffea0000047ce0 [ 0.000000] Call Trace: [ 0.000000] [<ffffffff81d02e5d>] dump_stack+0xc1/0x124 [ 0.000000] [<ffffffff814fb329>] print_address_description+0x189/0x260 [ 0.000000] [<ffffffff814fb725>] kasan_report+0x285/0x370 [ 0.000000] [<ffffffff848f9f6b>] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [<ffffffff814fb927>] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [<ffffffff848f9f6b>] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [<ffffffff8486cdb9>] free_all_bootmem+0xf2/0x24d [ 0.000000] [<ffffffff8486ccc7>] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [<ffffffff848a16c7>] ? dmar_table_detect+0x60/0x60 [ 0.000000] [<ffffffff83762050>] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [<ffffffff8484fa52>] mem_init+0x13/0x74 [ 0.000000] [<ffffffff8481b475>] start_kernel+0x31d/0x6e9 [ 0.000000] [<ffffffff8481b158>] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [<ffffffff8481a120>] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [<ffffffff8481a120>] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [<ffffffff8481a312>] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [<ffffffff8481a454>] 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 #8 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 5d31bcfd6e390b7d ffffffff84207c40 ffffffff81d02e5d [ 0.000000] ffffffff83fb34b5 ffffffff84207d18 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d08 ffffffff81417caa 0000000041b58ab3 [ 0.000000] Call Trace: [ 0.000000] [<ffffffff81d02e5d>] dump_stack+0xc1/0x124 [ 0.000000] [<ffffffff81417caa>] panic+0x1aa/0x388 [ 0.000000] [<ffffffff81417b00>] ? percpu_up_read.constprop.45+0xe1/0xe1 [ 0.000000] [<ffffffff814fb180>] kasan_end_report+0x50/0x50 [ 0.000000] [<ffffffff814fb5fc>] kasan_report+0x15c/0x370 [ 0.000000] [<ffffffff848f9f6b>] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [<ffffffff814fb927>] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [<ffffffff848f9f6b>] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [<ffffffff8486cdb9>] free_all_bootmem+0xf2/0x24d [ 0.000000] [<ffffffff8486ccc7>] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [<ffffffff848a16c7>] ? dmar_table_detect+0x60/0x60 [ 0.000000] [<ffffffff83762050>] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [<ffffffff8484fa52>] mem_init+0x13/0x74 [ 0.000000] [<ffffffff8481b475>] start_kernel+0x31d/0x6e9 [ 0.000000] [<ffffffff8481b158>] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [<ffffffff8481a120>] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [<ffffffff8481a120>] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [<ffffffff8481a312>] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [<ffffffff8481a454>] 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) ) #8 SMP PREEMPT Sun Dec 31 11:52:08 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 1116758624 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 #8 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 5d463ea26e4d8d22 ffffffff84207ce8 ffffffff81d02e5d [ 0.000000] ffffea0000047ce0 ffffea0000047ce0 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d20 ffffffff814fb329 ffffea0000047ce0 [ 0.000000] Call Trace: [ 0.000000] [<ffffffff81d02e5d>] dump_stack+0xc1/0x124 [ 0.000000] [<ffffffff814fb329>] print_address_description+0x189/0x260 [ 0.000000] [<ffffffff814fb725>] kasan_report+0x285/0x370 [ 0.000000] [<ffffffff848f9f6b>] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [<ffffffff814fb927>] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [<ffffffff848f9f6b>] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [<ffffffff8486cdb9>] free_all_bootmem+0xf2/0x24d [ 0.000000] [<ffffffff8486ccc7>] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [<ffffffff848a16c7>] ? dmar_table_detect+0x60/0x60 [ 0.000000] [<ffffffff83762050>] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [<ffffffff8484fa52>] mem_init+0x13/0x74 [ 0.000000] [<ffffffff8481b475>] start_kernel+0x31d/0x6e9 [ 0.000000] [<ffffffff8481b158>] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [<ffffffff8481a120>] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [<ffffffff8481a120>] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [<ffffffff8481a312>] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [<ffffffff8481a454>] 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 #8 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 5d463ea26e4d8d22 ffffffff84207c40 ffffffff81d02e5d [ 0.000000] ffffffff83fb34b5 ffffffff84207d18 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d08 ffffffff81417caa 0000000041b58ab3 [ 0.000000] Call Trace: [ 0.000000] [<ffffffff81d02e5d>] dump_stack+0xc1/0x124 [ 0.000000] [<ffffffff81417caa>] panic+0x1aa/0x388 [ 0.000000] [<ffffffff81417b00>] ? percpu_up_read.constprop.45+0xe1/0xe1 [ 0.000000] [<ffffffff814fb180>] kasan_end_report+0x50/0x50 [ 0.000000] [<ffffffff814fb5fc>] kasan_report+0x15c/0x370 [ 0.000000] [<ffffffff848f9f6b>] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [<ffffffff814fb927>] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [<ffffffff848f9f6b>] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [<ffffffff8486cdb9>] free_all_bootmem+0xf2/0x24d [ 0.000000] [<ffffffff8486ccc7>] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [<ffffffff848a16c7>] ? dmar_table_detect+0x60/0x60 [ 0.000000] [<ffffffff83762050>] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [<ffffffff8484fa52>] mem_init+0x13/0x74 [ 0.000000] [<ffffffff8481b475>] start_kernel+0x31d/0x6e9 [ 0.000000] [<ffffffff8481b158>] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [<ffffffff8481a120>] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [<ffffffff8481a120>] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [<ffffffff8481a312>] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [<ffffffff8481a454>] 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) ) #8 SMP PREEMPT Sun Dec 31 11:52:08 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 1116818810 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 #8 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 5d4580ee6e4ccf6e ffffffff84207ce8 ffffffff81d02e5d [ 0.000000] ffffea0000047ce0 ffffea0000047ce0 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d20 ffffffff814fb329 ffffea0000047ce0 [ 0.000000] Call Trace: [ 0.000000] [<ffffffff81d02e5d>] dump_stack+0xc1/0x124 [ 0.000000] [<ffffffff814fb329>] print_address_description+0x189/0x260 [ 0.000000] [<ffffffff814fb725>] kasan_report+0x285/0x370 [ 0.000000] [<ffffffff848f9f6b>] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [<ffffffff814fb927>] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [<ffffffff848f9f6b>] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [<ffffffff8486cdb9>] free_all_bootmem+0xf2/0x24d [ 0.000000] [<ffffffff8486ccc7>] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [<ffffffff848a16c7>] ? dmar_table_detect+0x60/0x60 [ 0.000000] [<ffffffff83762050>] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [<ffffffff8484fa52>] mem_init+0x13/0x74 [ 0.000000] [<ffffffff8481b475>] start_kernel+0x31d/0x6e9 [ 0.000000] [<ffffffff8481b158>] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [<ffffffff8481a120>] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [<ffffffff8481a120>] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [<ffffffff8481a312>] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [<ffffffff8481a454>] 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 #8 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 5d4580ee6e4ccf6e ffffffff84207c40 ffffffff81d02e5d [ 0.000000] ffffffff83fb34b5 ffffffff84207d18 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d08 ffffffff81417caa 0000000041b58ab3 [ 0.000000] Call Trace: [ 0.000000] [<ffffffff81d02e5d>] dump_stack+0xc1/0x124 [ 0.000000] [<ffffffff81417caa>] panic+0x1aa/0x388 [ 0.000000] [<ffffffff81417b00>] ? percpu_up_read.constprop.45+0xe1/0xe1 [ 0.000000] [<ffffffff814fb180>] kasan_end_report+0x50/0x50 [ 0.000000] [<ffffffff814fb5fc>] kasan_report+0x15c/0x370 [ 0.000000] [<ffffffff848f9f6b>] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [<ffffffff814fb927>] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [<ffffffff848f9f6b>] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [<ffffffff8486cdb9>] free_all_bootmem+0xf2/0x24d [ 0.000000] [<ffffffff8486ccc7>] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [<ffffffff848a16c7>] ? dmar_table_detect+0x60/0x60 [ 0.000000] [<ffffffff83762050>] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [<ffffffff8484fa52>] mem_init+0x13/0x74 [ 0.000000] [<ffffffff8481b475>] start_kernel+0x31d/0x6e9 [ 0.000000] [<ffffffff8481b158>] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [<ffffffff8481a120>] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [<ffffffff8481a120>] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [<ffffffff8481a312>] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [<ffffffff8481a454>] 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) ) #8 SMP PREEMPT Sun Dec 31 11:52:08 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 1124415612 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 #8 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 5de8f4af6ef0432f ffffffff84207ce8 ffffffff81d02e5d [ 0.000000] ffffea0000047ce0 ffffea0000047ce0 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d20 ffffffff814fb329 ffffea0000047ce0 [ 0.000000] Call Trace: [ 0.000000] [<ffffffff81d02e5d>] dump_stack+0xc1/0x124 [ 0.000000] [<ffffffff814fb329>] print_address_description+0x189/0x260 [ 0.000000] [<ffffffff814fb725>] kasan_report+0x285/0x370 [ 0.000000] [<ffffffff848f9f6b>] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [<ffffffff814fb927>] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [<ffffffff848f9f6b>] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [<ffffffff8486cdb9>] free_all_bootmem+0xf2/0x24d [ 0.000000] [<ffffffff8486ccc7>] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [<ffffffff848a16c7>] ? dmar_table_detect+0x60/0x60 [ 0.000000] [<ffffffff83762050>] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [<ffffffff8484fa52>] mem_init+0x13/0x74 [ 0.000000] [<ffffffff8481b475>] start_kernel+0x31d/0x6e9 [ 0.000000] [<ffffffff8481b158>] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [<ffffffff8481a120>] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [<ffffffff8481a120>] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [<ffffffff8481a312>] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [<ffffffff8481a454>] 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 #8 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 5de8f4af6ef0432f ffffffff84207c40 ffffffff81d02e5d [ 0.000000] ffffffff83fb34b5 ffffffff84207d18 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d08 ffffffff81417caa 0000000041b58ab3 [ 0.000000] Call Trace: [ 0.000000] [<ffffffff81d02e5d>] dump_stack+0xc1/0x124 [ 0.000000] [<ffffffff81417caa>] panic+0x1aa/0x388 [ 0.000000] [<ffffffff81417b00>] ? percpu_up_read.constprop.45+0xe1/0xe1 [ 0.000000] [<ffffffff814fb180>] kasan_end_report+0x50/0x50 [ 0.000000] [<ffffffff814fb5fc>] kasan_report+0x15c/0x370 [ 0.000000] [<ffffffff848f9f6b>] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [<ffffffff814fb927>] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [<ffffffff848f9f6b>] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [<ffffffff8486cdb9>] free_all_bootmem+0xf2/0x24d [ 0.000000] [<ffffffff8486ccc7>] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [<ffffffff848a16c7>] ? dmar_table_detect+0x60/0x60 [ 0.000000] [<ffffffff83762050>] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [<ffffffff8484fa52>] mem_init+0x13/0x74 [ 0.000000] [<ffffffff8481b475>] start_kernel+0x31d/0x6e9 [ 0.000000] [<ffffffff8481b158>] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [<ffffffff8481a120>] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [<ffffffff8481a120>] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [<ffffffff8481a312>] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [<ffffffff8481a454>] 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) ) #8 SMP PREEMPT Sun Dec 31 11:52:08 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 1238112043 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 #8 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 6e0a62157f11b095 ffffffff84207ce8 ffffffff81d02e5d [ 0.000000] ffffea0000047ce0 ffffea0000047ce0 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d20 ffffffff814fb329 ffffea0000047ce0 [ 0.000000] Call Trace: [ 0.000000] [<ffffffff81d02e5d>] dump_stack+0xc1/0x124 [ 0.000000] [<ffffffff814fb329>] print_address_description+0x189/0x260 [ 0.000000] [<ffffffff814fb725>] kasan_report+0x285/0x370 [ 0.000000] [<ffffffff848f9f6b>] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [<ffffffff814fb927>] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [<ffffffff848f9f6b>] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [<ffffffff8486cdb9>] free_all_bootmem+0xf2/0x24d [ 0.000000] [<ffffffff8486ccc7>] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [<ffffffff848a16c7>] ? dmar_table_detect+0x60/0x60 [ 0.000000] [<ffffffff83762050>] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [<ffffffff8484fa52>] mem_init+0x13/0x74 [ 0.000000] [<ffffffff8481b475>] start_kernel+0x31d/0x6e9 [ 0.000000] [<ffffffff8481b158>] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [<ffffffff8481a120>] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [<ffffffff8481a120>] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [<ffffffff8481a312>] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [<ffffffff8481a454>] 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 #8 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 6e0a62157f11b095 ffffffff84207c40 ffffffff81d02e5d [ 0.000000] ffffffff83fb34b5 ffffffff84207d18 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d08 ffffffff81417caa 0000000041b58ab3 [ 0.000000] Call Trace: [ 0.000000] [<ffffffff81d02e5d>] dump_stack+0xc1/0x124 [ 0.000000] [<ffffffff81417caa>] panic+0x1aa/0x388 [ 0.000000] [<ffffffff81417b00>] ? percpu_up_read.constprop.45+0xe1/0xe1 [ 0.000000] [<ffffffff814fb180>] kasan_end_report+0x50/0x50 [ 0.000000] [<ffffffff814fb5fc>] kasan_report+0x15c/0x370 [ 0.000000] [<ffffffff848f9f6b>] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [<ffffffff814fb927>] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [<ffffffff848f9f6b>] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [<ffffffff8486cdb9>] free_all_bootmem+0xf2/0x24d [ 0.000000] [<ffffffff8486ccc7>] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [<ffffffff848a16c7>] ? dmar_table_detect+0x60/0x60 [ 0.000000] [<ffffffff83762050>] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [<ffffffff8484fa52>] mem_init+0x13/0x74 [ 0.000000] [<ffffffff8481b475>] start_kernel+0x31d/0x6e9 [ 0.000000] [<ffffffff8481b158>] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [<ffffffff8481a120>] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [<ffffffff8481a120>] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [<ffffffff8481a312>] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [<ffffffff8481a454>] 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) ) #8 SMP PREEMPT Sun Dec 31 11:52:08 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 1219595277 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 #8 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 6b3f09577c4657d7 ffffffff84207ce8 ffffffff81d02e5d [ 0.000000] ffffea0000047ce0 ffffea0000047ce0 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d20 ffffffff814fb329 ffffea0000047ce0 [ 0.000000] Call Trace: [ 0.000000] [<ffffffff81d02e5d>] dump_stack+0xc1/0x124 [ 0.000000] [<ffffffff814fb329>] print_address_description+0x189/0x260 [ 0.000000] [<ffffffff814fb725>] kasan_report+0x285/0x370 [ 0.000000] [<ffffffff848f9f6b>] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [<ffffffff814fb927>] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [<ffffffff848f9f6b>] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [<ffffffff8486cdb9>] free_all_bootmem+0xf2/0x24d [ 0.000000] [<ffffffff8486ccc7>] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [<ffffffff848a16c7>] ? dmar_table_detect+0x60/0x60 [ 0.000000] [<ffffffff83762050>] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [<ffffffff8484fa52>] mem_init+0x13/0x74 [ 0.000000] [<ffffffff8481b475>] start_kernel+0x31d/0x6e9 [ 0.000000] [<ffffffff8481b158>] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [<ffffffff8481a120>] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [<ffffffff8481a120>] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [<ffffffff8481a312>] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [<ffffffff8481a454>] 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 #8 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 6b3f09577c4657d7 ffffffff84207c40 ffffffff81d02e5d [ 0.000000] ffffffff83fb34b5 ffffffff84207d18 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d08 ffffffff81417caa 0000000041b58ab3 [ 0.000000] Call Trace: [ 0.000000] [<ffffffff81d02e5d>] dump_stack+0xc1/0x124 [ 0.000000] [<ffffffff81417caa>] panic+0x1aa/0x388 [ 0.000000] [<ffffffff81417b00>] ? percpu_up_read.constprop.45+0xe1/0xe1 [ 0.000000] [<ffffffff814fb180>] kasan_end_report+0x50/0x50 [ 0.000000] [<ffffffff814fb5fc>] kasan_report+0x15c/0x370 [ 0.000000] [<ffffffff848f9f6b>] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [<ffffffff814fb927>] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [<ffffffff848f9f6b>] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [<ffffffff8486cdb9>] free_all_bootmem+0xf2/0x24d [ 0.000000] [<ffffffff8486ccc7>] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [<ffffffff848a16c7>] ? dmar_table_detect+0x60/0x60 [ 0.000000] [<ffffffff83762050>] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [<ffffffff8484fa52>] mem_init+0x13/0x74 [ 0.000000] [<ffffffff8481b475>] start_kernel+0x31d/0x6e9 [ 0.000000] [<ffffffff8481b158>] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [<ffffffff8481a120>] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [<ffffffff8481a120>] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [<ffffffff8481a312>] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [<ffffffff8481a454>] 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) ) #8 SMP PREEMPT Sun Dec 31 11:52:08 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 1142425743 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 #8 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 60f930c672007f46 ffffffff84207ce8 ffffffff81d02e5d [ 0.000000] ffffea0000047ce0 ffffea0000047ce0 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d20 ffffffff814fb329 ffffea0000047ce0 [ 0.000000] Call Trace: [ 0.000000] [<ffffffff81d02e5d>] dump_stack+0xc1/0x124 [ 0.000000] [<ffffffff814fb329>] print_address_description+0x189/0x260 [ 0.000000] [<ffffffff814fb725>] kasan_report+0x285/0x370 [ 0.000000] [<ffffffff848f9f6b>] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [<ffffffff814fb927>] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [<ffffffff848f9f6b>] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [<ffffffff8486cdb9>] free_all_bootmem+0xf2/0x24d [ 0.000000] [<ffffffff8486ccc7>] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [<ffffffff848a16c7>] ? dmar_table_detect+0x60/0x60 [ 0.000000] [<ffffffff83762050>] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [<ffffffff8484fa52>] mem_init+0x13/0x74 [ 0.000000] [<ffffffff8481b475>] start_kernel+0x31d/0x6e9 [ 0.000000] [<ffffffff8481b158>] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [<ffffffff8481a120>] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [<ffffffff8481a120>] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [<ffffffff8481a312>] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [<ffffffff8481a454>] 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 #8 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 60f930c672007f46 ffffffff84207c40 ffffffff81d02e5d [ 0.000000] ffffffff83fb34b5 ffffffff84207d18 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d08 ffffffff81417caa 0000000041b58ab3 [ 0.000000] Call Trace: [ 0.000000] [<ffffffff81d02e5d>] dump_stack+0xc1/0x124 [ 0.000000] [<ffffffff81417caa>] panic+0x1aa/0x388 [ 0.000000] [<ffffffff81417b00>] ? percpu_up_read.constprop.45+0xe1/0xe1 [ 0.000000] [<ffffffff814fb180>] kasan_end_report+0x50/0x50 [ 0.000000] [<ffffffff814fb5fc>] kasan_report+0x15c/0x370 [ 0.000000] [<ffffffff848f9f6b>] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [<ffffffff814fb927>] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [<ffffffff848f9f6b>] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [<ffffffff8486cdb9>] free_all_bootmem+0xf2/0x24d [ 0.000000] [<ffffffff8486ccc7>] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [<ffffffff848a16c7>] ? dmar_table_detect+0x60/0x60 [ 0.000000] [<ffffffff83762050>] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [<ffffffff8484fa52>] mem_init+0x13/0x74 [ 0.000000] [<ffffffff8481b475>] start_kernel+0x31d/0x6e9 [ 0.000000] [<ffffffff8481b158>] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [<ffffffff8481a120>] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [<ffffffff8481a120>] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [<ffffffff8481a312>] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [<ffffffff8481a454>] 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) ) #8 SMP PREEMPT Sun Dec 31 11:52:08 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 1211270935 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 #8 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 6a6f0e487b765cc8 ffffffff84207ce8 ffffffff81d02e5d [ 0.000000] ffffea0000047ce0 ffffea0000047ce0 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d20 ffffffff814fb329 ffffea0000047ce0 [ 0.000000] Call Trace: [ 0.000000] [<ffffffff81d02e5d>] dump_stack+0xc1/0x124 [ 0.000000] [<ffffffff814fb329>] print_address_description+0x189/0x260 [ 0.000000] [<ffffffff814fb725>] kasan_report+0x285/0x370 [ 0.000000] [<ffffffff848f9f6b>] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [<ffffffff814fb927>] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [<ffffffff848f9f6b>] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [<ffffffff8486cdb9>] free_all_bootmem+0xf2/0x24d [ 0.000000] [<ffffffff8486ccc7>] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [<ffffffff848a16c7>] ? dmar_table_detect+0x60/0x60 [ 0.000000] [<ffffffff83762050>] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [<ffffffff8484fa52>] mem_init+0x13/0x74 [ 0.000000] [<ffffffff8481b475>] start_kernel+0x31d/0x6e9 [ 0.000000] [<ffffffff8481b158>] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [<ffffffff8481a120>] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [<ffffffff8481a120>] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [<ffffffff8481a312>] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [<ffffffff8481a454>] 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 #8 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 6a6f0e487b765cc8 ffffffff84207c40 ffffffff81d02e5d [ 0.000000] ffffffff83fb34b5 ffffffff84207d18 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d08 ffffffff81417caa 0000000041b58ab3 [ 0.000000] Call Trace: [ 0.000000] [<ffffffff81d02e5d>] dump_stack+0xc1/0x124 [ 0.000000] [<ffffffff81417caa>] panic+0x1aa/0x388 [ 0.000000] [<ffffffff81417b00>] ? percpu_up_read.constprop.45+0xe1/0xe1 [ 0.000000] [<ffffffff814fb180>] kasan_end_report+0x50/0x50 [ 0.000000] [<ffffffff814fb5fc>] kasan_report+0x15c/0x370 [ 0.000000] [<ffffffff848f9f6b>] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [<ffffffff814fb927>] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [<ffffffff848f9f6b>] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [<ffffffff8486cdb9>] free_all_bootmem+0xf2/0x24d [ 0.000000] [<ffffffff8486ccc7>] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [<ffffffff848a16c7>] ? dmar_table_detect+0x60/0x60 [ 0.000000] [<ffffffff83762050>] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [<ffffffff8484fa52>] mem_init+0x13/0x74 [ 0.000000] [<ffffffff8481b475>] start_kernel+0x31d/0x6e9 [ 0.000000] [<ffffffff8481b158>] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [<ffffffff8481a120>] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [<ffffffff8481a120>] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [<ffffffff8481a312>] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [<ffffffff8481a454>] 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) ) #8 SMP PREEMPT Sun Dec 31 11:52:08 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 1163755866 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 #8 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 63d2f9e974da4869 ffffffff84207ce8 ffffffff81d02e5d [ 0.000000] ffffea0000047ce0 ffffea0000047ce0 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d20 ffffffff814fb329 ffffea0000047ce0 [ 0.000000] Call Trace: [ 0.000000] [<ffffffff81d02e5d>] dump_stack+0xc1/0x124 [ 0.000000] [<ffffffff814fb329>] print_address_description+0x189/0x260 [ 0.000000] [<ffffffff814fb725>] kasan_report+0x285/0x370 [ 0.000000] [<ffffffff848f9f6b>] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [<ffffffff814fb927>] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [<ffffffff848f9f6b>] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [<ffffffff8486cdb9>] free_all_bootmem+0xf2/0x24d [ 0.000000] [<ffffffff8486ccc7>] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [<ffffffff848a16c7>] ? dmar_table_detect+0x60/0x60 [ 0.000000] [<ffffffff83762050>] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [<ffffffff8484fa52>] mem_init+0x13/0x74 [ 0.000000] [<ffffffff8481b475>] start_kernel+0x31d/0x6e9 [ 0.000000] [<ffffffff8481b158>] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [<ffffffff8481a120>] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [<ffffffff8481a120>] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [<ffffffff8481a312>] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [<ffffffff8481a454>] 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 #8 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 63d2f9e974da4869 ffffffff84207c40 ffffffff81d02e5d [ 0.000000] ffffffff83fb34b5 ffffffff84207d18 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d08 ffffffff81417caa 0000000041b58ab3 [ 0.000000] Call Trace: [ 0.000000] [<ffffffff81d02e5d>] dump_stack+0xc1/0x124 [ 0.000000] [<ffffffff81417caa>] panic+0x1aa/0x388 [ 0.000000] [<ffffffff81417b00>] ? percpu_up_read.constprop.45+0xe1/0xe1 [ 0.000000] [<ffffffff814fb180>] kasan_end_report+0x50/0x50 [ 0.000000] [<ffffffff814fb5fc>] kasan_report+0x15c/0x370 [ 0.000000] [<ffffffff848f9f6b>] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [<ffffffff814fb927>] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [<ffffffff848f9f6b>] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [<ffffffff8486cdb9>] free_all_bootmem+0xf2/0x24d [ 0.000000] [<ffffffff8486ccc7>] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [<ffffffff848a16c7>] ? dmar_table_detect+0x60/0x60 [ 0.000000] [<ffffffff83762050>] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [<ffffffff8484fa52>] mem_init+0x13/0x74 [ 0.000000] [<ffffffff8481b475>] start_kernel+0x31d/0x6e9 [ 0.000000] [<ffffffff8481b158>] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [<ffffffff8481a120>] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [<ffffffff8481a120>] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [<ffffffff8481a312>] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [<ffffffff8481a454>] 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) ) #8 SMP PREEMPT Sun Dec 31 11:52:08 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 1226750868 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 #8 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 6c75efa87d7d3e28 ffffffff84207ce8 ffffffff81d02e5d [ 0.000000] ffffea0000047ce0 ffffea0000047ce0 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d20 ffffffff814fb329 ffffea0000047ce0 [ 0.000000] Call Trace: [ 0.000000] [<ffffffff81d02e5d>] dump_stack+0xc1/0x124 [ 0.000000] [<ffffffff814fb329>] print_address_description+0x189/0x260 [ 0.000000] [<ffffffff814fb725>] kasan_report+0x285/0x370 [ 0.000000] [<ffffffff848f9f6b>] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [<ffffffff814fb927>] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [<ffffffff848f9f6b>] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [<ffffffff8486cdb9>] free_all_bootmem+0xf2/0x24d [ 0.000000] [<ffffffff8486ccc7>] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [<ffffffff848a16c7>] ? dmar_table_detect+0x60/0x60 [ 0.000000] [<ffffffff83762050>] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [<ffffffff8484fa52>] mem_init+0x13/0x74 [ 0.000000] [<ffffffff8481b475>] start_kernel+0x31d/0x6e9 [ 0.000000] [<ffffffff8481b158>] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [<ffffffff8481a120>] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [<ffffffff8481a120>] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [<ffffffff8481a312>] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [<ffffffff8481a454>] 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 #8 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 6c75efa87d7d3e28 ffffffff84207c40 ffffffff81d02e5d [ 0.000000] ffffffff83fb34b5 ffffffff84207d18 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d08 ffffffff81417caa 0000000041b58ab3 [ 0.000000] Call Trace: [ 0.000000] [<ffffffff81d02e5d>] dump_stack+0xc1/0x124 [ 0.000000] [<ffffffff81417caa>] panic+0x1aa/0x388 [ 0.000000] [<ffffffff81417b00>] ? percpu_up_read.constprop.45+0xe1/0xe1 [ 0.000000] [<ffffffff814fb180>] kasan_end_report+0x50/0x50 [ 0.000000] [<ffffffff814fb5fc>] kasan_report+0x15c/0x370 [ 0.000000] [<ffffffff848f9f6b>] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [<ffffffff814fb927>] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [<ffffffff848f9f6b>] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [<ffffffff8486cdb9>] free_all_bootmem+0xf2/0x24d [ 0.000000] [<ffffffff8486ccc7>] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [<ffffffff848a16c7>] ? dmar_table_detect+0x60/0x60 [ 0.000000] [<ffffffff83762050>] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [<ffffffff8484fa52>] mem_init+0x13/0x74 [ 0.000000] [<ffffffff8481b475>] start_kernel+0x31d/0x6e9 [ 0.000000] [<ffffffff8481b158>] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [<ffffffff8481a120>] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [<ffffffff8481a120>] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [<ffffffff8481a312>] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [<ffffffff8481a454>] 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) ) #8 SMP PREEMPT Sun Dec 31 11:52:08 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 1235238656 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 #8 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 6da3a1667eaaefe6 ffffffff84207ce8 ffffffff81d02e5d [ 0.000000] ffffea0000047ce0 ffffea0000047ce0 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d20 ffffffff814fb329 ffffea0000047ce0 [ 0.000000] Call Trace: [ 0.000000] [<ffffffff81d02e5d>] dump_stack+0xc1/0x124 [ 0.000000] [<ffffffff814fb329>] print_address_description+0x189/0x260 [ 0.000000] [<ffffffff814fb725>] kasan_report+0x285/0x370 [ 0.000000] [<ffffffff848f9f6b>] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [<ffffffff814fb927>] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [<ffffffff848f9f6b>] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [<ffffffff8486cdb9>] free_all_bootmem+0xf2/0x24d [ 0.000000] [<ffffffff8486ccc7>] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [<ffffffff848a16c7>] ? dmar_table_detect+0x60/0x60 [ 0.000000] [<ffffffff83762050>] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [<ffffffff8484fa52>] mem_init+0x13/0x74 [ 0.000000] [<ffffffff8481b475>] start_kernel+0x31d/0x6e9 [ 0.000000] [<ffffffff8481b158>] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [<ffffffff8481a120>] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [<ffffffff8481a120>] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [<ffffffff8481a312>] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [<ffffffff8481a454>] 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 #8 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 6da3a1667eaaefe6 ffffffff84207c40 ffffffff81d02e5d [ 0.000000] ffffffff83fb34b5 ffffffff84207d18 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d08 ffffffff81417caa 0000000041b58ab3 [ 0.000000] Call Trace: [ 0.000000] [<ffffffff81d02e5d>] dump_stack+0xc1/0x124 [ 0.000000] [<ffffffff81417caa>] panic+0x1aa/0x388 [ 0.000000] [<ffffffff81417b00>] ? percpu_up_read.constprop.45+0xe1/0xe1 [ 0.000000] [<ffffffff814fb180>] kasan_end_report+0x50/0x50 [ 0.000000] [<ffffffff814fb5fc>] kasan_report+0x15c/0x370 [ 0.000000] [<ffffffff848f9f6b>] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [<ffffffff814fb927>] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [<ffffffff848f9f6b>] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [<ffffffff8486cdb9>] free_all_bootmem+0xf2/0x24d [ 0.000000] [<ffffffff8486ccc7>] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [<ffffffff848a16c7>] ? dmar_table_detect+0x60/0x60 [ 0.000000] [<ffffffff83762050>] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [<ffffffff8484fa52>] mem_init+0x13/0x74 [ 0.000000] [<ffffffff8481b475>] start_kernel+0x31d/0x6e9 [ 0.000000] [<ffffffff8481b158>] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [<ffffffff8481a120>] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [<ffffffff8481a120>] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [<ffffffff8481a312>] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [<ffffffff8481a454>] 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) ) #8 SMP PREEMPT Sun Dec 31 11:52:08 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 1210633114 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 #8 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 6a4a7f847b51ce04 ffffffff84207ce8 ffffffff81d02e5d [ 0.000000] ffffea0000047ce0 ffffea0000047ce0 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d20 ffffffff814fb329 ffffea0000047ce0 [ 0.000000] Call Trace: [ 0.000000] [<ffffffff81d02e5d>] dump_stack+0xc1/0x124 [ 0.000000] [<ffffffff814fb329>] print_address_description+0x189/0x260 [ 0.000000] [<ffffffff814fb725>] kasan_report+0x285/0x370 [ 0.000000] [<ffffffff848f9f6b>] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [<ffffffff814fb927>] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [<ffffffff848f9f6b>] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [<ffffffff8486cdb9>] free_all_bootmem+0xf2/0x24d [ 0.000000] [<ffffffff8486ccc7>] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [<ffffffff848a16c7>] ? dmar_table_detect+0x60/0x60 [ 0.000000] [<ffffffff83762050>] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [<ffffffff8484fa52>] mem_init+0x13/0x74 [ 0.000000] [<ffffffff8481b475>] start_kernel+0x31d/0x6e9 [ 0.000000] [<ffffffff8481b158>] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [<ffffffff8481a120>] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [<ffffffff8481a120>] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [<ffffffff8481a312>] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [<ffffffff8481a454>] 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 #8 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 6a4a7f847b51ce04 ffffffff84207c40 ffffffff81d02e5d [ 0.000000] ffffffff83fb34b5 ffffffff84207d18 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d08 ffffffff81417caa 0000000041b58ab3 [ 0.000000] Call Trace: [ 0.000000] [<ffffffff81d02e5d>] dump_stack+0xc1/0x124 [ 0.000000] [<ffffffff81417caa>] panic+0x1aa/0x388 [ 0.000000] [<ffffffff81417b00>] ? percpu_up_read.constprop.45+0xe1/0xe1 [ 0.000000] [<ffffffff814fb180>] kasan_end_report+0x50/0x50 [ 0.000000] [<ffffffff814fb5fc>] kasan_report+0x15c/0x370 [ 0.000000] [<ffffffff848f9f6b>] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [<ffffffff814fb927>] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [<ffffffff848f9f6b>] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [<ffffffff8486cdb9>] free_all_bootmem+0xf2/0x24d [ 0.000000] [<ffffffff8486ccc7>] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [<ffffffff848a16c7>] ? dmar_table_detect+0x60/0x60 [ 0.000000] [<ffffffff83762050>] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [<ffffffff8484fa52>] mem_init+0x13/0x74 [ 0.000000] [<ffffffff8481b475>] start_kernel+0x31d/0x6e9 [ 0.000000] [<ffffffff8481b158>] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [<ffffffff8481a120>] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [<ffffffff8481a120>] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [<ffffffff8481a312>] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [<ffffffff8481a454>] 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) ) #8 SMP PREEMPT Sun Dec 31 11:52:08 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 1172114574 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 #8 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 64fe789a7605c71a ffffffff84207ce8 ffffffff81d02e5d [ 0.000000] ffffea0000047ce0 ffffea0000047ce0 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d20 ffffffff814fb329 ffffea0000047ce0 [ 0.000000] Call Trace: [ 0.000000] [<ffffffff81d02e5d>] dump_stack+0xc1/0x124 [ 0.000000] [<ffffffff814fb329>] print_address_description+0x189/0x260 [ 0.000000] [<ffffffff814fb725>] kasan_report+0x285/0x370 [ 0.000000] [<ffffffff848f9f6b>] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [<ffffffff814fb927>] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [<ffffffff848f9f6b>] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [<ffffffff8486cdb9>] free_all_bootmem+0xf2/0x24d [ 0.000000] [<ffffffff8486ccc7>] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [<ffffffff848a16c7>] ? dmar_table_detect+0x60/0x60 [ 0.000000] [<ffffffff83762050>] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [<ffffffff8484fa52>] mem_init+0x13/0x74 [ 0.000000] [<ffffffff8481b475>] start_kernel+0x31d/0x6e9 [ 0.000000] [<ffffffff8481b158>] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [<ffffffff8481a120>] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [<ffffffff8481a120>] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [<ffffffff8481a312>] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [<ffffffff8481a454>] 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 #8 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 64fe789a7605c71a ffffffff84207c40 ffffffff81d02e5d [ 0.000000] ffffffff83fb34b5 ffffffff84207d18 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d08 ffffffff81417caa 0000000041b58ab3 [ 0.000000] Call Trace: [ 0.000000] [<ffffffff81d02e5d>] dump_stack+0xc1/0x124 [ 0.000000] [<ffffffff81417caa>] panic+0x1aa/0x388 [ 0.000000] [<ffffffff81417b00>] ? percpu_up_read.constprop.45+0xe1/0xe1 [ 0.000000] [<ffffffff814fb180>] kasan_end_report+0x50/0x50 [ 0.000000] [<ffffffff814fb5fc>] kasan_report+0x15c/0x370 [ 0.000000] [<ffffffff848f9f6b>] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [<ffffffff814fb927>] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [<ffffffff848f9f6b>] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [<ffffffff8486cdb9>] free_all_bootmem+0xf2/0x24d [ 0.000000] [<ffffffff8486ccc7>] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [<ffffffff848a16c7>] ? dmar_table_detect+0x60/0x60 [ 0.000000] [<ffffffff83762050>] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [<ffffffff8484fa52>] mem_init+0x13/0x74 [ 0.000000] [<ffffffff8481b475>] start_kernel+0x31d/0x6e9 [ 0.000000] [<ffffffff8481b158>] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [<ffffffff8481a120>] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [<ffffffff8481a120>] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [<ffffffff8481a312>] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [<ffffffff8481a454>] 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) ) #8 SMP PREEMPT Sun Dec 31 11:52:08 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 1194380252 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 #8 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 680f67b07916b630 ffffffff84207ce8 ffffffff81d02e5d [ 0.000000] ffffea0000047ce0 ffffea0000047ce0 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d20 ffffffff814fb329 ffffea0000047ce0 [ 0.000000] Call Trace: [ 0.000000] [<ffffffff81d02e5d>] dump_stack+0xc1/0x124 [ 0.000000] [<ffffffff814fb329>] print_address_description+0x189/0x260 [ 0.000000] [<ffffffff814fb725>] kasan_report+0x285/0x370 [ 0.000000] [<ffffffff848f9f6b>] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [<ffffffff814fb927>] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [<ffffffff848f9f6b>] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [<ffffffff8486cdb9>] free_all_bootmem+0xf2/0x24d [ 0.000000] [<ffffffff8486ccc7>] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [<ffffffff848a16c7>] ? dmar_table_detect+0x60/0x60 [ 0.000000] [<ffffffff83762050>] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [<ffffffff8484fa52>] mem_init+0x13/0x74 [ 0.000000] [<ffffffff8481b475>] start_kernel+0x31d/0x6e9 [ 0.000000] [<ffffffff8481b158>] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [<ffffffff8481a120>] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [<ffffffff8481a120>] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [<ffffffff8481a312>] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [<ffffffff8481a454>] 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 #8 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 680f67b07916b630 ffffffff84207c40 ffffffff81d02e5d [ 0.000000] ffffffff83fb34b5 ffffffff84207d18 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d08 ffffffff81417caa 0000000041b58ab3 [ 0.000000] Call Trace: [ 0.000000] [<ffffffff81d02e5d>] dump_stack+0xc1/0x124 [ 0.000000] [<ffffffff81417caa>] panic+0x1aa/0x388 [ 0.000000] [<ffffffff81417b00>] ? percpu_up_read.constprop.45+0xe1/0xe1 [ 0.000000] [<ffffffff814fb180>] kasan_end_report+0x50/0x50 [ 0.000000] [<ffffffff814fb5fc>] kasan_report+0x15c/0x370 [ 0.000000] [<ffffffff848f9f6b>] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [<ffffffff814fb927>] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [<ffffffff848f9f6b>] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [<ffffffff8486cdb9>] free_all_bootmem+0xf2/0x24d [ 0.000000] [<ffffffff8486ccc7>] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [<ffffffff848a16c7>] ? dmar_table_detect+0x60/0x60 [ 0.000000] [<ffffffff83762050>] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [<ffffffff8484fa52>] mem_init+0x13/0x74 [ 0.000000] [<ffffffff8481b475>] start_kernel+0x31d/0x6e9 [ 0.000000] [<ffffffff8481b158>] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [<ffffffff8481a120>] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [<ffffffff8481a120>] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [<ffffffff8481a312>] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [<ffffffff8481a454>] 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) ) #8 SMP PREEMPT Sun Dec 31 11:52:08 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 1227000320 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 #8 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 6c8283eb7d89d26b ffffffff84207ce8 ffffffff81d02e5d [ 0.000000] ffffea0000047ce0 ffffea0000047ce0 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d20 ffffffff814fb329 ffffea0000047ce0 [ 0.000000] Call Trace: [ 0.000000] [<ffffffff81d02e5d>] dump_stack+0xc1/0x124 [ 0.000000] [<ffffffff814fb329>] print_address_description+0x189/0x260 [ 0.000000] [<ffffffff814fb725>] kasan_report+0x285/0x370 [ 0.000000] [<ffffffff848f9f6b>] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [<ffffffff814fb927>] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [<ffffffff848f9f6b>] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [<ffffffff8486cdb9>] free_all_bootmem+0xf2/0x24d [ 0.000000] [<ffffffff8486ccc7>] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [<ffffffff848a16c7>] ? dmar_table_detect+0x60/0x60 [ 0.000000] [<ffffffff83762050>] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [<ffffffff8484fa52>] mem_init+0x13/0x74 [ 0.000000] [<ffffffff8481b475>] start_kernel+0x31d/0x6e9 [ 0.000000] [<ffffffff8481b158>] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [<ffffffff8481a120>] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [<ffffffff8481a120>] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [<ffffffff8481a312>] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [<ffffffff8481a454>] 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 #8 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 6c8283eb7d89d26b ffffffff84207c40 ffffffff81d02e5d [ 0.000000] ffffffff83fb34b5 ffffffff84207d18 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d08 ffffffff81417caa 0000000041b58ab3 [ 0.000000] Call Trace: [ 0.000000] [<ffffffff81d02e5d>] dump_stack+0xc1/0x124 [ 0.000000] [<ffffffff81417caa>] panic+0x1aa/0x388 [ 0.000000] [<ffffffff81417b00>] ? percpu_up_read.constprop.45+0xe1/0xe1 [ 0.000000] [<ffffffff814fb180>] kasan_end_report+0x50/0x50 [ 0.000000] [<ffffffff814fb5fc>] kasan_report+0x15c/0x370 [ 0.000000] [<ffffffff848f9f6b>] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [<ffffffff814fb927>] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [<ffffffff848f9f6b>] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [<ffffffff8486cdb9>] free_all_bootmem+0xf2/0x24d [ 0.000000] [<ffffffff8486ccc7>] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [<ffffffff848a16c7>] ? dmar_table_detect+0x60/0x60 [ 0.000000] [<ffffffff83762050>] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [<ffffffff8484fa52>] mem_init+0x13/0x74 [ 0.000000] [<ffffffff8481b475>] start_kernel+0x31d/0x6e9 [ 0.000000] [<ffffffff8481b158>] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [<ffffffff8481a120>] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [<ffffffff8481a120>] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [<ffffffff8481a312>] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [<ffffffff8481a454>] 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) ) #8 SMP PREEMPT Sun Dec 31 11:52:08 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 1159726210 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 #8 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 633d00cd74444f4d ffffffff84207ce8 ffffffff81d02e5d [ 0.000000] ffffea0000047ce0 ffffea0000047ce0 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d20 ffffffff814fb329 ffffea0000047ce0 [ 0.000000] Call Trace: [ 0.000000] [<ffffffff81d02e5d>] dump_stack+0xc1/0x124 [ 0.000000] [<ffffffff814fb329>] print_address_description+0x189/0x260 [ 0.000000] [<ffffffff814fb725>] kasan_report+0x285/0x370 [ 0.000000] [<ffffffff848f9f6b>] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [<ffffffff814fb927>] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [<ffffffff848f9f6b>] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [<ffffffff8486cdb9>] free_all_bootmem+0xf2/0x24d [ 0.000000] [<ffffffff8486ccc7>] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [<ffffffff848a16c7>] ? dmar_table_detect+0x60/0x60 [ 0.000000] [<ffffffff83762050>] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [<ffffffff8484fa52>] mem_init+0x13/0x74 [ 0.000000] [<ffffffff8481b475>] start_kernel+0x31d/0x6e9 [ 0.000000] [<ffffffff8481b158>] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [<ffffffff8481a120>] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [<ffffffff8481a120>] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [<ffffffff8481a312>] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [<ffffffff8481a454>] 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 #8 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 633d00cd74444f4d ffffffff84207c40 ffffffff81d02e5d [ 0.000000] ffffffff83fb34b5 ffffffff84207d18 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d08 ffffffff81417caa 0000000041b58ab3 [ 0.000000] Call Trace: [ 0.000000] [<ffffffff81d02e5d>] dump_stack+0xc1/0x124 [ 0.000000] [<ffffffff81417caa>] panic+0x1aa/0x388 [ 0.000000] [<ffffffff81417b00>] ? percpu_up_read.constprop.45+0xe1/0xe1 [ 0.000000] [<ffffffff814fb180>] kasan_end_report+0x50/0x50 [ 0.000000] [<ffffffff814fb5fc>] kasan_report+0x15c/0x370 [ 0.000000] [<ffffffff848f9f6b>] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [<ffffffff814fb927>] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [<ffffffff848f9f6b>] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [<ffffffff8486cdb9>] free_all_bootmem+0xf2/0x24d [ 0.000000] [<ffffffff8486ccc7>] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [<ffffffff848a16c7>] ? dmar_table_detect+0x60/0x60 [ 0.000000] [<ffffffff83762050>] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [<ffffffff8484fa52>] mem_init+0x13/0x74 [ 0.000000] [<ffffffff8481b475>] start_kernel+0x31d/0x6e9 [ 0.000000] [<ffffffff8481b158>] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [<ffffffff8481a120>] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [<ffffffff8481a120>] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [<ffffffff8481a312>] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [<ffffffff8481a454>] 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) ) #8 SMP PREEMPT Sun Dec 31 11:52:08 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 1116183116 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 #8 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 5d3fe0d56e472f55 ffffffff84207ce8 ffffffff81d02e5d [ 0.000000] ffffea0000047ce0 ffffea0000047ce0 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d20 ffffffff814fb329 ffffea0000047ce0 [ 0.000000] Call Trace: [ 0.000000] [<ffffffff81d02e5d>] dump_stack+0xc1/0x124 [ 0.000000] [<ffffffff814fb329>] print_address_description+0x189/0x260 [ 0.000000] [<ffffffff814fb725>] kasan_report+0x285/0x370 [ 0.000000] [<ffffffff848f9f6b>] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [<ffffffff814fb927>] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [<ffffffff848f9f6b>] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [<ffffffff8486cdb9>] free_all_bootmem+0xf2/0x24d [ 0.000000] [<ffffffff8486ccc7>] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [<ffffffff848a16c7>] ? dmar_table_detect+0x60/0x60 [ 0.000000] [<ffffffff83762050>] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [<ffffffff8484fa52>] mem_init+0x13/0x74 [ 0.000000] [<ffffffff8481b475>] start_kernel+0x31d/0x6e9 [ 0.000000] [<ffffffff8481b158>] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [<ffffffff8481a120>] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [<ffffffff8481a120>] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [<ffffffff8481a312>] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [<ffffffff8481a454>] 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 #8 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 5d3fe0d56e472f55 ffffffff84207c40 ffffffff81d02e5d [ 0.000000] ffffffff83fb34b5 ffffffff84207d18 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d08 ffffffff81417caa 0000000041b58ab3 [ 0.000000] Call Trace: [ 0.000000] [<ffffffff81d02e5d>] dump_stack+0xc1/0x124 [ 0.000000] [<ffffffff81417caa>] panic+0x1aa/0x388 [ 0.000000] [<ffffffff81417b00>] ? percpu_up_read.constprop.45+0xe1/0xe1 [ 0.000000] [<ffffffff814fb180>] kasan_end_report+0x50/0x50 [ 0.000000] [<ffffffff814fb5fc>] kasan_report+0x15c/0x370 [ 0.000000] [<ffffffff848f9f6b>] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [<ffffffff814fb927>] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [<ffffffff848f9f6b>] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [<ffffffff8486cdb9>] free_all_bootmem+0xf2/0x24d [ 0.000000] [<ffffffff8486ccc7>] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [<ffffffff848a16c7>] ? dmar_table_detect+0x60/0x60 [ 0.000000] [<ffffffff83762050>] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [<ffffffff8484fa52>] mem_init+0x13/0x74 [ 0.000000] [<ffffffff8481b475>] start_kernel+0x31d/0x6e9 [ 0.000000] [<ffffffff8481b158>] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [<ffffffff8481a120>] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [<ffffffff8481a120>] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [<ffffffff8481a312>] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [<ffffffff8481a454>] 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) ) #8 SMP PREEMPT Sun Dec 31 11:52:08 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 1145104447 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 #8 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 6150af927257fe12 ffffffff84207ce8 ffffffff81d02e5d [ 0.000000] ffffea0000047ce0 ffffea0000047ce0 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d20 ffffffff814fb329 ffffea0000047ce0 [ 0.000000] Call Trace: [ 0.000000] [<ffffffff81d02e5d>] dump_stack+0xc1/0x124 [ 0.000000] [<ffffffff814fb329>] print_address_description+0x189/0x260 [ 0.000000] [<ffffffff814fb725>] kasan_report+0x285/0x370 [ 0.000000] [<ffffffff848f9f6b>] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [<ffffffff814fb927>] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [<ffffffff848f9f6b>] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [<ffffffff8486cdb9>] free_all_bootmem+0xf2/0x24d [ 0.000000] [<ffffffff8486ccc7>] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [<ffffffff848a16c7>] ? dmar_table_detect+0x60/0x60 [ 0.000000] [<ffffffff83762050>] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [<ffffffff8484fa52>] mem_init+0x13/0x74 [ 0.000000] [<ffffffff8481b475>] start_kernel+0x31d/0x6e9 [ 0.000000] [<ffffffff8481b158>] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [<ffffffff8481a120>] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [<ffffffff8481a120>] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [<ffffffff8481a312>] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [<ffffffff8481a454>] 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 #8 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 6150af927257fe12 ffffffff84207c40 ffffffff81d02e5d [ 0.000000] ffffffff83fb34b5 ffffffff84207d18 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d08 ffffffff81417caa 0000000041b58ab3 [ 0.000000] Call Trace: [ 0.000000] [<ffffffff81d02e5d>] dump_stack+0xc1/0x124 [ 0.000000] [<ffffffff81417caa>] panic+0x1aa/0x388 [ 0.000000] [<ffffffff81417b00>] ? percpu_up_read.constprop.45+0xe1/0xe1 [ 0.000000] [<ffffffff814fb180>] kasan_end_report+0x50/0x50 [ 0.000000] [<ffffffff814fb5fc>] kasan_report+0x15c/0x370 [ 0.000000] [<ffffffff848f9f6b>] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [<ffffffff814fb927>] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [<ffffffff848f9f6b>] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [<ffffffff8486cdb9>] free_all_bootmem+0xf2/0x24d [ 0.000000] [<ffffffff8486ccc7>] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [<ffffffff848a16c7>] ? dmar_table_detect+0x60/0x60 [ 0.000000] [<ffffffff83762050>] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [<ffffffff8484fa52>] mem_init+0x13/0x74 [ 0.000000] [<ffffffff8481b475>] start_kernel+0x31d/0x6e9 [ 0.000000] [<ffffffff8481b158>] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [<ffffffff8481a120>] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [<ffffffff8481a120>] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [<ffffffff8481a312>] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [<ffffffff8481a454>] 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) ) #8 SMP PREEMPT Sun Dec 31 11:52:08 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 1146008391 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 #8 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 617e3b6f728589ef ffffffff84207ce8 ffffffff81d02e5d [ 0.000000] ffffea0000047ce0 ffffea0000047ce0 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d20 ffffffff814fb329 ffffea0000047ce0 [ 0.000000] Call Trace: [ 0.000000] [<ffffffff81d02e5d>] dump_stack+0xc1/0x124 [ 0.000000] [<ffffffff814fb329>] print_address_description+0x189/0x260 [ 0.000000] [<ffffffff814fb725>] kasan_report+0x285/0x370 [ 0.000000] [<ffffffff848f9f6b>] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [<ffffffff814fb927>] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [<ffffffff848f9f6b>] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [<ffffffff8486cdb9>] free_all_bootmem+0xf2/0x24d [ 0.000000] [<ffffffff8486ccc7>] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [<ffffffff848a16c7>] ? dmar_table_detect+0x60/0x60 [ 0.000000] [<ffffffff83762050>] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [<ffffffff8484fa52>] mem_init+0x13/0x74 [ 0.000000] [<ffffffff8481b475>] start_kernel+0x31d/0x6e9 [ 0.000000] [<ffffffff8481b158>] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [<ffffffff8481a120>] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [<ffffffff8481a120>] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [<ffffffff8481a312>] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [<ffffffff8481a454>] 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 #8 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 617e3b6f728589ef ffffffff84207c40 ffffffff81d02e5d [ 0.000000] ffffffff83fb34b5 ffffffff84207d18 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d08 ffffffff81417caa 0000000041b58ab3 [ 0.000000] Call Trace: [ 0.000000] [<ffffffff81d02e5d>] dump_stack+0xc1/0x124 [ 0.000000] [<ffffffff81417caa>] panic+0x1aa/0x388 [ 0.000000] [<ffffffff81417b00>] ? percpu_up_read.constprop.45+0xe1/0xe1 [ 0.000000] [<ffffffff814fb180>] kasan_end_report+0x50/0x50 [ 0.000000] [<ffffffff814fb5fc>] kasan_report+0x15c/0x370 [ 0.000000] [<ffffffff848f9f6b>] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [<ffffffff814fb927>] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [<ffffffff848f9f6b>] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [<ffffffff8486cdb9>] free_all_bootmem+0xf2/0x24d [ 0.000000] [<ffffffff8486ccc7>] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [<ffffffff848a16c7>] ? dmar_table_detect+0x60/0x60 [ 0.000000] [<ffffffff83762050>] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [<ffffffff8484fa52>] mem_init+0x13/0x74 [ 0.000000] [<ffffffff8481b475>] start_kernel+0x31d/0x6e9 [ 0.000000] [<ffffffff8481b158>] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [<ffffffff8481a120>] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [<ffffffff8481a120>] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [<ffffffff8481a312>] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [<ffffffff8481a454>] 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) ) #8 SMP PREEMPT Sun Dec 31 11:52:08 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 1191735336 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 #8 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 67a6604778adaec7 ffffffff84207ce8 ffffffff81d02e5d [ 0.000000] ffffea0000047ce0 ffffea0000047ce0 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d20 ffffffff814fb329 ffffea0000047ce0 [ 0.000000] Call Trace: [ 0.000000] [<ffffffff81d02e5d>] dump_stack+0xc1/0x124 [ 0.000000] [<ffffffff814fb329>] print_address_description+0x189/0x260 [ 0.000000] [<ffffffff814fb725>] kasan_report+0x285/0x370 [ 0.000000] [<ffffffff848f9f6b>] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [<ffffffff814fb927>] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [<ffffffff848f9f6b>] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [<ffffffff8486cdb9>] free_all_bootmem+0xf2/0x24d [ 0.000000] [<ffffffff8486ccc7>] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [<ffffffff848a16c7>] ? dmar_table_detect+0x60/0x60 [ 0.000000] [<ffffffff83762050>] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [<ffffffff8484fa52>] mem_init+0x13/0x74 [ 0.000000] [<ffffffff8481b475>] start_kernel+0x31d/0x6e9 [ 0.000000] [<ffffffff8481b158>] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [<ffffffff8481a120>] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [<ffffffff8481a120>] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [<ffffffff8481a312>] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [<ffffffff8481a454>] 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 #8 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 67a6604778adaec7 ffffffff84207c40 ffffffff81d02e5d [ 0.000000] ffffffff83fb34b5 ffffffff84207d18 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d08 ffffffff81417caa 0000000041b58ab3 [ 0.000000] Call Trace: [ 0.000000] [<ffffffff81d02e5d>] dump_stack+0xc1/0x124 [ 0.000000] [<ffffffff81417caa>] panic+0x1aa/0x388 [ 0.000000] [<ffffffff81417b00>] ? percpu_up_read.constprop.45+0xe1/0xe1 [ 0.000000] [<ffffffff814fb180>] kasan_end_report+0x50/0x50 [ 0.000000] [<ffffffff814fb5fc>] kasan_report+0x15c/0x370 [ 0.000000] [<ffffffff848f9f6b>] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [<ffffffff814fb927>] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [<ffffffff848f9f6b>] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [<ffffffff8486cdb9>] free_all_bootmem+0xf2/0x24d [ 0.000000] [<ffffffff8486ccc7>] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [<ffffffff848a16c7>] ? dmar_table_detect+0x60/0x60 [ 0.000000] [<ffffffff83762050>] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [<ffffffff8484fa52>] mem_init+0x13/0x74 [ 0.000000] [<ffffffff8481b475>] start_kernel+0x31d/0x6e9 [ 0.000000] [<ffffffff8481b158>] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [<ffffffff8481a120>] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [<ffffffff8481a120>] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [<ffffffff8481a312>] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [<ffffffff8481a454>] 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) ) #8 SMP PREEMPT Sun Dec 31 11:52:08 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 1238827545 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 #8 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 6e1b9e177f22ec97 ffffffff84207ce8 ffffffff81d02e5d [ 0.000000] ffffea0000047ce0 ffffea0000047ce0 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d20 ffffffff814fb329 ffffea0000047ce0 [ 0.000000] Call Trace: [ 0.000000] [<ffffffff81d02e5d>] dump_stack+0xc1/0x124 [ 0.000000] [<ffffffff814fb329>] print_address_description+0x189/0x260 [ 0.000000] [<ffffffff814fb725>] kasan_report+0x285/0x370 [ 0.000000] [<ffffffff848f9f6b>] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [<ffffffff814fb927>] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [<ffffffff848f9f6b>] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [<ffffffff8486cdb9>] free_all_bootmem+0xf2/0x24d [ 0.000000] [<ffffffff8486ccc7>] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [<ffffffff848a16c7>] ? dmar_table_detect+0x60/0x60 [ 0.000000] [<ffffffff83762050>] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [<ffffffff8484fa52>] mem_init+0x13/0x74 [ 0.000000] [<ffffffff8481b475>] start_kernel+0x31d/0x6e9 [ 0.000000] [<ffffffff8481b158>] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [<ffffffff8481a120>] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [<ffffffff8481a120>] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [<ffffffff8481a312>] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [<ffffffff8481a454>] 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 #8 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 6e1b9e177f22ec97 ffffffff84207c40 ffffffff81d02e5d [ 0.000000] ffffffff83fb34b5 ffffffff84207d18 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d08 ffffffff81417caa 0000000041b58ab3 [ 0.000000] Call Trace: [ 0.000000] [<ffffffff81d02e5d>] dump_stack+0xc1/0x124 [ 0.000000] [<ffffffff81417caa>] panic+0x1aa/0x388 [ 0.000000] [<ffffffff81417b00>] ? percpu_up_read.constprop.45+0xe1/0xe1 [ 0.000000] [<ffffffff814fb180>] kasan_end_report+0x50/0x50 [ 0.000000] [<ffffffff814fb5fc>] kasan_report+0x15c/0x370 [ 0.000000] [<ffffffff848f9f6b>] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [<ffffffff814fb927>] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [<ffffffff848f9f6b>] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [<ffffffff8486cdb9>] free_all_bootmem+0xf2/0x24d [ 0.000000] [<ffffffff8486ccc7>] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [<ffffffff848a16c7>] ? dmar_table_detect+0x60/0x60 [ 0.000000] [<ffffffff83762050>] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [<ffffffff8484fa52>] mem_init+0x13/0x74 [ 0.000000] [<ffffffff8481b475>] start_kernel+0x31d/0x6e9 [ 0.000000] [<ffffffff8481b158>] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [<ffffffff8481a120>] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [<ffffffff8481a120>] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [<ffffffff8481a312>] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [<ffffffff8481a454>] 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) ) #8 SMP PREEMPT Sun Dec 31 11:52:08 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 1312491856 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 #8 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 782139ad8928882d ffffffff84207ce8 ffffffff81d02e5d [ 0.000000] ffffea0000047ce0 ffffea0000047ce0 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d20 ffffffff814fb329 ffffea0000047ce0 [ 0.000000] Call Trace: [ 0.000000] [<ffffffff81d02e5d>] dump_stack+0xc1/0x124 [ 0.000000] [<ffffffff814fb329>] print_address_description+0x189/0x260 [ 0.000000] [<ffffffff814fb725>] kasan_report+0x285/0x370 [ 0.000000] [<ffffffff848f9f6b>] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [<ffffffff814fb927>] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [<ffffffff848f9f6b>] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [<ffffffff8486cdb9>] free_all_bootmem+0xf2/0x24d [ 0.000000] [<ffffffff8486ccc7>] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [<ffffffff848a16c7>] ? dmar_table_detect+0x60/0x60 [ 0.000000] [<ffffffff83762050>] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [<ffffffff8484fa52>] mem_init+0x13/0x74 [ 0.000000] [<ffffffff8481b475>] start_kernel+0x31d/0x6e9 [ 0.000000] [<ffffffff8481b158>] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [<ffffffff8481a120>] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [<ffffffff8481a120>] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [<ffffffff8481a312>] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [<ffffffff8481a454>] 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 #8 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 782139ad8928882d ffffffff84207c40 ffffffff81d02e5d [ 0.000000] ffffffff83fb34b5 ffffffff84207d18 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d08 ffffffff81417caa 0000000041b58ab3 [ 0.000000] Call Trace: [ 0.000000] [<ffffffff81d02e5d>] dump_stack+0xc1/0x124 [ 0.000000] [<ffffffff81417caa>] panic+0x1aa/0x388 [ 0.000000] [<ffffffff81417b00>] ? percpu_up_read.constprop.45+0xe1/0xe1 [ 0.000000] [<ffffffff814fb180>] kasan_end_report+0x50/0x50 [ 0.000000] [<ffffffff814fb5fc>] kasan_report+0x15c/0x370 [ 0.000000] [<ffffffff848f9f6b>] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [<ffffffff814fb927>] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [<ffffffff848f9f6b>] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [<ffffffff8486cdb9>] free_all_bootmem+0xf2/0x24d [ 0.000000] [<ffffffff8486ccc7>] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [<ffffffff848a16c7>] ? dmar_table_detect+0x60/0x60 [ 0.000000] [<ffffffff83762050>] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [<ffffffff8484fa52>] mem_init+0x13/0x74 [ 0.000000] [<ffffffff8481b475>] start_kernel+0x31d/0x6e9 [ 0.000000] [<ffffffff8481b158>] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [<ffffffff8481a120>] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [<ffffffff8481a120>] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [<ffffffff8481a312>] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [<ffffffff8481a454>] 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) ) #8 SMP PREEMPT Sun Dec 31 11:52:08 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 1175544980 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 #8 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 6578f3a776804227 ffffffff84207ce8 ffffffff81d02e5d [ 0.000000] ffffea0000047ce0 ffffea0000047ce0 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d20 ffffffff814fb329 ffffea0000047ce0 [ 0.000000] Call Trace: [ 0.000000] [<ffffffff81d02e5d>] dump_stack+0xc1/0x124 [ 0.000000] [<ffffffff814fb329>] print_address_description+0x189/0x260 [ 0.000000] [<ffffffff814fb725>] kasan_report+0x285/0x370 [ 0.000000] [<ffffffff848f9f6b>] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [<ffffffff814fb927>] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [<ffffffff848f9f6b>] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [<ffffffff8486cdb9>] free_all_bootmem+0xf2/0x24d [ 0.000000] [<ffffffff8486ccc7>] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [<ffffffff848a16c7>] ? dmar_table_detect+0x60/0x60 [ 0.000000] [<ffffffff83762050>] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [<ffffffff8484fa52>] mem_init+0x13/0x74 [ 0.000000] [<ffffffff8481b475>] start_kernel+0x31d/0x6e9 [ 0.000000] [<ffffffff8481b158>] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [<ffffffff8481a120>] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [<ffffffff8481a120>] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [<ffffffff8481a312>] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [<ffffffff8481a454>] 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 #8 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 6578f3a776804227 ffffffff84207c40 ffffffff81d02e5d [ 0.000000] ffffffff83fb34b5 ffffffff84207d18 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d08 ffffffff81417caa 0000000041b58ab3 [ 0.000000] Call Trace: [ 0.000000] [<ffffffff81d02e5d>] dump_stack+0xc1/0x124 [ 0.000000] [<ffffffff81417caa>] panic+0x1aa/0x388 [ 0.000000] [<ffffffff81417b00>] ? percpu_up_read.constprop.45+0xe1/0xe1 [ 0.000000] [<ffffffff814fb180>] kasan_end_report+0x50/0x50 [ 0.000000] [<ffffffff814fb5fc>] kasan_report+0x15c/0x370 [ 0.000000] [<ffffffff848f9f6b>] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [<ffffffff814fb927>] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [<ffffffff848f9f6b>] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [<ffffffff8486cdb9>] free_all_bootmem+0xf2/0x24d [ 0.000000] [<ffffffff8486ccc7>] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [<ffffffff848a16c7>] ? dmar_table_detect+0x60/0x60 [ 0.000000] [<ffffffff83762050>] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [<ffffffff8484fa52>] mem_init+0x13/0x74 [ 0.000000] [<ffffffff8481b475>] start_kernel+0x31d/0x6e9 [ 0.000000] [<ffffffff8481b158>] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [<ffffffff8481a120>] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [<ffffffff8481a120>] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [<ffffffff8481a312>] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [<ffffffff8481a454>] 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) ) #8 SMP PREEMPT Sun Dec 31 11:52:08 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 1204286174 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 #8 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 69614d5d7a689bdd ffffffff84207ce8 ffffffff81d02e5d [ 0.000000] ffffea0000047ce0 ffffea0000047ce0 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d20 ffffffff814fb329 ffffea0000047ce0 [ 0.000000] Call Trace: [ 0.000000] [<ffffffff81d02e5d>] dump_stack+0xc1/0x124 [ 0.000000] [<ffffffff814fb329>] print_address_description+0x189/0x260 [ 0.000000] [<ffffffff814fb725>] kasan_report+0x285/0x370 [ 0.000000] [<ffffffff848f9f6b>] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [<ffffffff814fb927>] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [<ffffffff848f9f6b>] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [<ffffffff8486cdb9>] free_all_bootmem+0xf2/0x24d [ 0.000000] [<ffffffff8486ccc7>] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [<ffffffff848a16c7>] ? dmar_table_detect+0x60/0x60 [ 0.000000] [<ffffffff83762050>] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [<ffffffff8484fa52>] mem_init+0x13/0x74 [ 0.000000] [<ffffffff8481b475>] start_kernel+0x31d/0x6e9 [ 0.000000] [<ffffffff8481b158>] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [<ffffffff8481a120>] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [<ffffffff8481a120>] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [<ffffffff8481a312>] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [<ffffffff8481a454>] 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 #8 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 69614d5d7a689bdd ffffffff84207c40 ffffffff81d02e5d [ 0.000000] ffffffff83fb34b5 ffffffff84207d18 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d08 ffffffff81417caa 0000000041b58ab3 [ 0.000000] Call Trace: [ 0.000000] [<ffffffff81d02e5d>] dump_stack+0xc1/0x124 [ 0.000000] [<ffffffff81417caa>] panic+0x1aa/0x388 [ 0.000000] [<ffffffff81417b00>] ? percpu_up_read.constprop.45+0xe1/0xe1 [ 0.000000] [<ffffffff814fb180>] kasan_end_report+0x50/0x50 [ 0.000000] [<ffffffff814fb5fc>] kasan_report+0x15c/0x370 [ 0.000000] [<ffffffff848f9f6b>] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [<ffffffff814fb927>] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [<ffffffff848f9f6b>] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [<ffffffff8486cdb9>] free_all_bootmem+0xf2/0x24d [ 0.000000] [<ffffffff8486ccc7>] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [<ffffffff848a16c7>] ? dmar_table_detect+0x60/0x60 [ 0.000000] [<ffffffff83762050>] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [<ffffffff8484fa52>] mem_init+0x13/0x74 [ 0.000000] [<ffffffff8481b475>] start_kernel+0x31d/0x6e9 [ 0.000000] [<ffffffff8481b158>] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [<ffffffff8481a120>] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [<ffffffff8481a120>] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [<ffffffff8481a312>] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [<ffffffff8481a454>] 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) ) #8 SMP PREEMPT Sun Dec 31 11:52:08 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 1138471906 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 #8 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 605a9e127161ec92 ffffffff84207ce8 ffffffff81d02e5d [ 0.000000] ffffea0000047ce0 ffffea0000047ce0 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d20 ffffffff814fb329 ffffea0000047ce0 [ 0.000000] Call Trace: [ 0.000000] [<ffffffff81d02e5d>] dump_stack+0xc1/0x124 [ 0.000000] [<ffffffff814fb329>] print_address_description+0x189/0x260 [ 0.000000] [<ffffffff814fb725>] kasan_report+0x285/0x370 [ 0.000000] [<ffffffff848f9f6b>] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [<ffffffff814fb927>] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [<ffffffff848f9f6b>] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [<ffffffff8486cdb9>] free_all_bootmem+0xf2/0x24d [ 0.000000] [<ffffffff8486ccc7>] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [<ffffffff848a16c7>] ? dmar_table_detect+0x60/0x60 [ 0.000000] [<ffffffff83762050>] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [<ffffffff8484fa52>] mem_init+0x13/0x74 [ 0.000000] [<ffffffff8481b475>] start_kernel+0x31d/0x6e9 [ 0.000000] [<ffffffff8481b158>] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [<ffffffff8481a120>] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [<ffffffff8481a120>] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [<ffffffff8481a312>] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [<ffffffff8481a454>] 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 #8 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 605a9e127161ec92 ffffffff84207c40 ffffffff81d02e5d [ 0.000000] ffffffff83fb34b5 ffffffff84207d18 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d08 ffffffff81417caa 0000000041b58ab3 [ 0.000000] Call Trace: [ 0.000000] [<ffffffff81d02e5d>] dump_stack+0xc1/0x124 [ 0.000000] [<ffffffff81417caa>] panic+0x1aa/0x388 [ 0.000000] [<ffffffff81417b00>] ? percpu_up_read.constprop.45+0xe1/0xe1 [ 0.000000] [<ffffffff814fb180>] kasan_end_report+0x50/0x50 [ 0.000000] [<ffffffff814fb5fc>] kasan_report+0x15c/0x370 [ 0.000000] [<ffffffff848f9f6b>] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [<ffffffff814fb927>] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [<ffffffff848f9f6b>] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [<ffffffff8486cdb9>] free_all_bootmem+0xf2/0x24d [ 0.000000] [<ffffffff8486ccc7>] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [<ffffffff848a16c7>] ? dmar_table_detect+0x60/0x60 [ 0.000000] [<ffffffff83762050>] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [<ffffffff8484fa52>] mem_init+0x13/0x74 [ 0.000000] [<ffffffff8481b475>] start_kernel+0x31d/0x6e9 [ 0.000000] [<ffffffff8481b158>] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [<ffffffff8481a120>] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [<ffffffff8481a120>] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [<ffffffff8481a312>] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [<ffffffff8481a454>] 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) ) #8 SMP PREEMPT Sun Dec 31 11:52:08 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 1242851790 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 #8 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 6eac49067fb39786 ffffffff84207ce8 ffffffff81d02e5d [ 0.000000] ffffea0000047ce0 ffffea0000047ce0 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d20 ffffffff814fb329 ffffea0000047ce0 [ 0.000000] Call Trace: [ 0.000000] [<ffffffff81d02e5d>] dump_stack+0xc1/0x124 [ 0.000000] [<ffffffff814fb329>] print_address_description+0x189/0x260 [ 0.000000] [<ffffffff814fb725>] kasan_report+0x285/0x370 [ 0.000000] [<ffffffff848f9f6b>] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [<ffffffff814fb927>] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [<ffffffff848f9f6b>] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [<ffffffff8486cdb9>] free_all_bootmem+0xf2/0x24d [ 0.000000] [<ffffffff8486ccc7>] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [<ffffffff848a16c7>] ? dmar_table_detect+0x60/0x60 [ 0.000000] [<ffffffff83762050>] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [<ffffffff8484fa52>] mem_init+0x13/0x74 [ 0.000000] [<ffffffff8481b475>] start_kernel+0x31d/0x6e9 [ 0.000000] [<ffffffff8481b158>] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [<ffffffff8481a120>] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [<ffffffff8481a120>] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [<ffffffff8481a312>] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [<ffffffff8481a454>] 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 #8 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 6eac49067fb39786 ffffffff84207c40 ffffffff81d02e5d [ 0.000000] ffffffff83fb34b5 ffffffff84207d18 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d08 ffffffff81417caa 0000000041b58ab3 [ 0.000000] Call Trace: [ 0.000000] [<ffffffff81d02e5d>] dump_stack+0xc1/0x124 [ 0.000000] [<ffffffff81417caa>] panic+0x1aa/0x388 [ 0.000000] [<ffffffff81417b00>] ? percpu_up_read.constprop.45+0xe1/0xe1 [ 0.000000] [<ffffffff814fb180>] kasan_end_report+0x50/0x50 [ 0.000000] [<ffffffff814fb5fc>] kasan_report+0x15c/0x370 [ 0.000000] [<ffffffff848f9f6b>] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [<ffffffff814fb927>] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [<ffffffff848f9f6b>] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [<ffffffff8486cdb9>] free_all_bootmem+0xf2/0x24d [ 0.000000] [<ffffffff8486ccc7>] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [<ffffffff848a16c7>] ? dmar_table_detect+0x60/0x60 [ 0.000000] [<ffffffff83762050>] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [<ffffffff8484fa52>] mem_init+0x13/0x74 [ 0.000000] [<ffffffff8481b475>] start_kernel+0x31d/0x6e9 [ 0.000000] [<ffffffff8481b158>] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [<ffffffff8481a120>] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [<ffffffff8481a120>] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [<ffffffff8481a312>] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [<ffffffff8481a454>] 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) ) #8 SMP PREEMPT Sun Dec 31 11:52:08 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 1242505834 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 #8 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 6ea82e457faf7cc5 ffffffff84207ce8 ffffffff81d02e5d [ 0.000000] ffffea0000047ce0 ffffea0000047ce0 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d20 ffffffff814fb329 ffffea0000047ce0 [ 0.000000] Call Trace: [ 0.000000] [<ffffffff81d02e5d>] dump_stack+0xc1/0x124 [ 0.000000] [<ffffffff814fb329>] print_address_description+0x189/0x260 [ 0.000000] [<ffffffff814fb725>] kasan_report+0x285/0x370 [ 0.000000] [<ffffffff848f9f6b>] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [<ffffffff814fb927>] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [<ffffffff848f9f6b>] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [<ffffffff8486cdb9>] free_all_bootmem+0xf2/0x24d [ 0.000000] [<ffffffff8486ccc7>] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [<ffffffff848a16c7>] ? dmar_table_detect+0x60/0x60 [ 0.000000] [<ffffffff83762050>] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [<ffffffff8484fa52>] mem_init+0x13/0x74 [ 0.000000] [<ffffffff8481b475>] start_kernel+0x31d/0x6e9 [ 0.000000] [<ffffffff8481b158>] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [<ffffffff8481a120>] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [<ffffffff8481a120>] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [<ffffffff8481a312>] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [<ffffffff8481a454>] 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 #8 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 6ea82e457faf7cc5 ffffffff84207c40 ffffffff81d02e5d [ 0.000000] ffffffff83fb34b5 ffffffff84207d18 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d08 ffffffff81417caa 0000000041b58ab3 [ 0.000000] Call Trace: [ 0.000000] [<ffffffff81d02e5d>] dump_stack+0xc1/0x124 [ 0.000000] [<ffffffff81417caa>] panic+0x1aa/0x388 [ 0.000000] [<ffffffff81417b00>] ? percpu_up_read.constprop.45+0xe1/0xe1 [ 0.000000] [<ffffffff814fb180>] kasan_end_report+0x50/0x50 [ 0.000000] [<ffffffff814fb5fc>] kasan_report+0x15c/0x370 [ 0.000000] [<ffffffff848f9f6b>] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [<ffffffff814fb927>] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [<ffffffff848f9f6b>] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [<ffffffff8486cdb9>] free_all_bootmem+0xf2/0x24d [ 0.000000] [<ffffffff8486ccc7>] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [<ffffffff848a16c7>] ? dmar_table_detect+0x60/0x60 [ 0.000000] [<ffffffff83762050>] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [<ffffffff8484fa52>] mem_init+0x13/0x74 [ 0.000000] [<ffffffff8481b475>] start_kernel+0x31d/0x6e9 [ 0.000000] [<ffffffff8481b158>] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [<ffffffff8481a120>] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [<ffffffff8481a120>] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [<ffffffff8481a312>] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [<ffffffff8481a454>] 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) ) #8 SMP PREEMPT Sun Dec 31 11:52:08 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 1173647996 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 #8 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 65254fd4762c9e54 ffffffff84207ce8 ffffffff81d02e5d [ 0.000000] ffffea0000047ce0 ffffea0000047ce0 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d20 ffffffff814fb329 ffffea0000047ce0 [ 0.000000] Call Trace: [ 0.000000] [<ffffffff81d02e5d>] dump_stack+0xc1/0x124 [ 0.000000] [<ffffffff814fb329>] print_address_description+0x189/0x260 [ 0.000000] [<ffffffff814fb725>] kasan_report+0x285/0x370 [ 0.000000] [<ffffffff848f9f6b>] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [<ffffffff814fb927>] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [<ffffffff848f9f6b>] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [<ffffffff8486cdb9>] free_all_bootmem+0xf2/0x24d [ 0.000000] [<ffffffff8486ccc7>] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [<ffffffff848a16c7>] ? dmar_table_detect+0x60/0x60 [ 0.000000] [<ffffffff83762050>] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [<ffffffff8484fa52>] mem_init+0x13/0x74 [ 0.000000] [<ffffffff8481b475>] start_kernel+0x31d/0x6e9 [ 0.000000] [<ffffffff8481b158>] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [<ffffffff8481a120>] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [<ffffffff8481a120>] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [<ffffffff8481a312>] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [<ffffffff8481a454>] 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 #8 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 65254fd4762c9e54 ffffffff84207c40 ffffffff81d02e5d [ 0.000000] ffffffff83fb34b5 ffffffff84207d18 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d08 ffffffff81417caa 0000000041b58ab3 [ 0.000000] Call Trace: [ 0.000000] [<ffffffff81d02e5d>] dump_stack+0xc1/0x124 [ 0.000000] [<ffffffff81417caa>] panic+0x1aa/0x388 [ 0.000000] [<ffffffff81417b00>] ? percpu_up_read.constprop.45+0xe1/0xe1 [ 0.000000] [<ffffffff814fb180>] kasan_end_report+0x50/0x50 [ 0.000000] [<ffffffff814fb5fc>] kasan_report+0x15c/0x370 [ 0.000000] [<ffffffff848f9f6b>] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [<ffffffff814fb927>] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [<ffffffff848f9f6b>] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [<ffffffff8486cdb9>] free_all_bootmem+0xf2/0x24d [ 0.000000] [<ffffffff8486ccc7>] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [<ffffffff848a16c7>] ? dmar_table_detect+0x60/0x60 [ 0.000000] [<ffffffff83762050>] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [<ffffffff8484fa52>] mem_init+0x13/0x74 [ 0.000000] [<ffffffff8481b475>] start_kernel+0x31d/0x6e9 [ 0.000000] [<ffffffff8481b158>] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [<ffffffff8481a120>] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [<ffffffff8481a120>] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [<ffffffff8481a312>] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [<ffffffff8481a454>] 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) ) #8 SMP PREEMPT Sun Dec 31 11:52:08 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 1121721812 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 #8 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 5e2731c36f2e8043 ffffffff84207ce8 ffffffff81d02e5d [ 0.000000] ffffea0000047ce0 ffffea0000047ce0 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d20 ffffffff814fb329 ffffea0000047ce0 [ 0.000000] Call Trace: [ 0.000000] [<ffffffff81d02e5d>] dump_stack+0xc1/0x124 [ 0.000000] [<ffffffff814fb329>] print_address_description+0x189/0x260 [ 0.000000] [<ffffffff814fb725>] kasan_report+0x285/0x370 [ 0.000000] [<ffffffff848f9f6b>] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [<ffffffff814fb927>] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [<ffffffff848f9f6b>] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [<ffffffff8486cdb9>] free_all_bootmem+0xf2/0x24d [ 0.000000] [<ffffffff8486ccc7>] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [<ffffffff848a16c7>] ? dmar_table_detect+0x60/0x60 [ 0.000000] [<ffffffff83762050>] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [<ffffffff8484fa52>] mem_init+0x13/0x74 [ 0.000000] [<ffffffff8481b475>] start_kernel+0x31d/0x6e9 [ 0.000000] [<ffffffff8481b158>] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [<ffffffff8481a120>] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [<ffffffff8481a120>] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [<ffffffff8481a312>] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [<ffffffff8481a454>] 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 #8 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 5e2731c36f2e8043 ffffffff84207c40 ffffffff81d02e5d [ 0.000000] ffffffff83fb34b5 ffffffff84207d18 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d08 ffffffff81417caa 0000000041b58ab3 [ 0.000000] Call Trace: [ 0.000000] [<ffffffff81d02e5d>] dump_stack+0xc1/0x124 [ 0.000000] [<ffffffff81417caa>] panic+0x1aa/0x388 [ 0.000000] [<ffffffff81417b00>] ? percpu_up_read.constprop.45+0xe1/0xe1 [ 0.000000] [<ffffffff814fb180>] kasan_end_report+0x50/0x50 [ 0.000000] [<ffffffff814fb5fc>] kasan_report+0x15c/0x370 [ 0.000000] [<ffffffff848f9f6b>] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [<ffffffff814fb927>] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [<ffffffff848f9f6b>] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [<ffffffff8486cdb9>] free_all_bootmem+0xf2/0x24d [ 0.000000] [<ffffffff8486ccc7>] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [<ffffffff848a16c7>] ? dmar_table_detect+0x60/0x60 [ 0.000000] [<ffffffff83762050>] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [<ffffffff8484fa52>] mem_init+0x13/0x74 [ 0.000000] [<ffffffff8481b475>] start_kernel+0x31d/0x6e9 [ 0.000000] [<ffffffff8481b158>] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [<ffffffff8481a120>] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [<ffffffff8481a120>] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [<ffffffff8481a312>] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [<ffffffff8481a454>] 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) ) #8 SMP PREEMPT Sun Dec 31 11:52:08 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 1136375752 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 #8 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 5feed18e70f6200e ffffffff84207ce8 ffffffff81d02e5d [ 0.000000] ffffea0000047ce0 ffffea0000047ce0 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d20 ffffffff814fb329 ffffea0000047ce0 [ 0.000000] Call Trace: [ 0.000000] [<ffffffff81d02e5d>] dump_stack+0xc1/0x124 [ 0.000000] [<ffffffff814fb329>] print_address_description+0x189/0x260 [ 0.000000] [<ffffffff814fb725>] kasan_report+0x285/0x370 [ 0.000000] [<ffffffff848f9f6b>] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [<ffffffff814fb927>] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [<ffffffff848f9f6b>] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [<ffffffff8486cdb9>] free_all_bootmem+0xf2/0x24d [ 0.000000] [<ffffffff8486ccc7>] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [<ffffffff848a16c7>] ? dmar_table_detect+0x60/0x60 [ 0.000000] [<ffffffff83762050>] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [<ffffffff8484fa52>] mem_init+0x13/0x74 [ 0.000000] [<ffffffff8481b475>] start_kernel+0x31d/0x6e9 [ 0.000000] [<ffffffff8481b158>] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [<ffffffff8481a120>] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [<ffffffff8481a120>] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [<ffffffff8481a312>] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [<ffffffff8481a454>] 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 #8 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 5feed18e70f6200e ffffffff84207c40 ffffffff81d02e5d [ 0.000000] ffffffff83fb34b5 ffffffff84207d18 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d08 ffffffff81417caa 0000000041b58ab3 [ 0.000000] Call Trace: [ 0.000000] [<ffffffff81d02e5d>] dump_stack+0xc1/0x124 [ 0.000000] [<ffffffff81417caa>] panic+0x1aa/0x388 [ 0.000000] [<ffffffff81417b00>] ? percpu_up_read.constprop.45+0xe1/0xe1 [ 0.000000] [<ffffffff814fb180>] kasan_end_report+0x50/0x50 [ 0.000000] [<ffffffff814fb5fc>] kasan_report+0x15c/0x370 [ 0.000000] [<ffffffff848f9f6b>] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [<ffffffff814fb927>] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [<ffffffff848f9f6b>] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [<ffffffff8486cdb9>] free_all_bootmem+0xf2/0x24d [ 0.000000] [<ffffffff8486ccc7>] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [<ffffffff848a16c7>] ? dmar_table_detect+0x60/0x60 [ 0.000000] [<ffffffff83762050>] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [<ffffffff8484fa52>] mem_init+0x13/0x74 [ 0.000000] [<ffffffff8481b475>] start_kernel+0x31d/0x6e9 [ 0.000000] [<ffffffff8481b158>] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [<ffffffff8481a120>] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [<ffffffff8481a120>] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [<ffffffff8481a312>] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [<ffffffff8481a454>] 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) ) #8 SMP PREEMPT Sun Dec 31 11:52:08 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 1119394600 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 #8 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 5dc534366ecc82b6 ffffffff84207ce8 ffffffff81d02e5d [ 0.000000] ffffea0000047ce0 ffffea0000047ce0 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d20 ffffffff814fb329 ffffea0000047ce0 [ 0.000000] Call Trace: [ 0.000000] [<ffffffff81d02e5d>] dump_stack+0xc1/0x124 [ 0.000000] [<ffffffff814fb329>] print_address_description+0x189/0x260 [ 0.000000] [<ffffffff814fb725>] kasan_report+0x285/0x370 [ 0.000000] [<ffffffff848f9f6b>] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [<ffffffff814fb927>] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [<ffffffff848f9f6b>] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [<ffffffff8486cdb9>] free_all_bootmem+0xf2/0x24d [ 0.000000] [<ffffffff8486ccc7>] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [<ffffffff848a16c7>] ? dmar_table_detect+0x60/0x60 [ 0.000000] [<ffffffff83762050>] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [<ffffffff8484fa52>] mem_init+0x13/0x74 [ 0.000000] [<ffffffff8481b475>] start_kernel+0x31d/0x6e9 [ 0.000000] [<ffffffff8481b158>] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [<ffffffff8481a120>] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [<ffffffff8481a120>] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [<ffffffff8481a312>] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [<ffffffff8481a454>] 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 #8 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 5dc534366ecc82b6 ffffffff84207c40 ffffffff81d02e5d [ 0.000000] ffffffff83fb34b5 ffffffff84207d18 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d08 ffffffff81417caa 0000000041b58ab3 [ 0.000000] Call Trace: [ 0.000000] [<ffffffff81d02e5d>] dump_stack+0xc1/0x124 [ 0.000000] [<ffffffff81417caa>] panic+0x1aa/0x388 [ 0.000000] [<ffffffff81417b00>] ? percpu_up_read.constprop.45+0xe1/0xe1 [ 0.000000] [<ffffffff814fb180>] kasan_end_report+0x50/0x50 [ 0.000000] [<ffffffff814fb5fc>] kasan_report+0x15c/0x370 [ 0.000000] [<ffffffff848f9f6b>] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [<ffffffff814fb927>] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [<ffffffff848f9f6b>] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [<ffffffff8486cdb9>] free_all_bootmem+0xf2/0x24d [ 0.000000] [<ffffffff8486ccc7>] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [<ffffffff848a16c7>] ? dmar_table_detect+0x60/0x60 [ 0.000000] [<ffffffff83762050>] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [<ffffffff8484fa52>] mem_init+0x13/0x74 [ 0.000000] [<ffffffff8481b475>] start_kernel+0x31d/0x6e9 [ 0.000000] [<ffffffff8481b158>] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [<ffffffff8481a120>] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [<ffffffff8481a120>] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [<ffffffff8481a312>] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [<ffffffff8481a454>] 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) ) #8 SMP PREEMPT Sun Dec 31 11:52:08 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 1183142349 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 #8 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 6636f20e773e408e ffffffff84207ce8 ffffffff81d02e5d [ 0.000000] ffffea0000047ce0 ffffea0000047ce0 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d20 ffffffff814fb329 ffffea0000047ce0 [ 0.000000] Call Trace: [ 0.000000] [<ffffffff81d02e5d>] dump_stack+0xc1/0x124 [ 0.000000] [<ffffffff814fb329>] print_address_description+0x189/0x260 [ 0.000000] [<ffffffff814fb725>] kasan_report+0x285/0x370 [ 0.000000] [<ffffffff848f9f6b>] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [<ffffffff814fb927>] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [<ffffffff848f9f6b>] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [<ffffffff8486cdb9>] free_all_bootmem+0xf2/0x24d [ 0.000000] [<ffffffff8486ccc7>] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [<ffffffff848a16c7>] ? dmar_table_detect+0x60/0x60 [ 0.000000] [<ffffffff83762050>] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [<ffffffff8484fa52>] mem_init+0x13/0x74 [ 0.000000] [<ffffffff8481b475>] start_kernel+0x31d/0x6e9 [ 0.000000] [<ffffffff8481b158>] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [<ffffffff8481a120>] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [<ffffffff8481a120>] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [<ffffffff8481a312>] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [<ffffffff8481a454>] 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 #8 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 6636f20e773e408e ffffffff84207c40 ffffffff81d02e5d [ 0.000000] ffffffff83fb34b5 ffffffff84207d18 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d08 ffffffff81417caa 0000000041b58ab3 [ 0.000000] Call Trace: [ 0.000000] [<ffffffff81d02e5d>] dump_stack+0xc1/0x124 [ 0.000000] [<ffffffff81417caa>] panic+0x1aa/0x388 [ 0.000000] [<ffffffff81417b00>] ? percpu_up_read.constprop.45+0xe1/0xe1 [ 0.000000] [<ffffffff814fb180>] kasan_end_report+0x50/0x50 [ 0.000000] [<ffffffff814fb5fc>] kasan_report+0x15c/0x370 [ 0.000000] [<ffffffff848f9f6b>] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [<ffffffff814fb927>] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [<ffffffff848f9f6b>] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [<ffffffff8486cdb9>] free_all_bootmem+0xf2/0x24d [ 0.000000] [<ffffffff8486ccc7>] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [<ffffffff848a16c7>] ? dmar_table_detect+0x60/0x60 [ 0.000000] [<ffffffff83762050>] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [<ffffffff8484fa52>] mem_init+0x13/0x74 [ 0.000000] [<ffffffff8481b475>] start_kernel+0x31d/0x6e9 [ 0.000000] [<ffffffff8481b158>] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [<ffffffff8481a120>] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [<ffffffff8481a120>] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [<ffffffff8481a312>] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [<ffffffff8481a454>] 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) ) #8 SMP PREEMPT Sun Dec 31 11:52:08 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 1183929812 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 #8 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 667b08e677825766 ffffffff84207ce8 ffffffff81d02e5d [ 0.000000] ffffea0000047ce0 ffffea0000047ce0 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d20 ffffffff814fb329 ffffea0000047ce0 [ 0.000000] Call Trace: [ 0.000000] [<ffffffff81d02e5d>] dump_stack+0xc1/0x124 [ 0.000000] [<ffffffff814fb329>] print_address_description+0x189/0x260 [ 0.000000] [<ffffffff814fb725>] kasan_report+0x285/0x370 [ 0.000000] [<ffffffff848f9f6b>] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [<ffffffff814fb927>] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [<ffffffff848f9f6b>] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [<ffffffff8486cdb9>] free_all_bootmem+0xf2/0x24d [ 0.000000] [<ffffffff8486ccc7>] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [<ffffffff848a16c7>] ? dmar_table_detect+0x60/0x60 [ 0.000000] [<ffffffff83762050>] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [<ffffffff8484fa52>] mem_init+0x13/0x74 [ 0.000000] [<ffffffff8481b475>] start_kernel+0x31d/0x6e9 [ 0.000000] [<ffffffff8481b158>] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [<ffffffff8481a120>] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [<ffffffff8481a120>] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [<ffffffff8481a312>] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [<ffffffff8481a454>] 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 #8 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 667b08e677825766 ffffffff84207c40 ffffffff81d02e5d [ 0.000000] ffffffff83fb34b5 ffffffff84207d18 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d08 ffffffff81417caa 0000000041b58ab3 [ 0.000000] Call Trace: [ 0.000000] [<ffffffff81d02e5d>] dump_stack+0xc1/0x124 [ 0.000000] [<ffffffff81417caa>] panic+0x1aa/0x388 [ 0.000000] [<ffffffff81417b00>] ? percpu_up_read.constprop.45+0xe1/0xe1 [ 0.000000] [<ffffffff814fb180>] kasan_end_report+0x50/0x50 [ 0.000000] [<ffffffff814fb5fc>] kasan_report+0x15c/0x370 [ 0.000000] [<ffffffff848f9f6b>] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [<ffffffff814fb927>] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [<ffffffff848f9f6b>] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [<ffffffff8486cdb9>] free_all_bootmem+0xf2/0x24d [ 0.000000] [<ffffffff8486ccc7>] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [<ffffffff848a16c7>] ? dmar_table_detect+0x60/0x60 [ 0.000000] [<ffffffff83762050>] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [<ffffffff8484fa52>] mem_init+0x13/0x74 [ 0.000000] [<ffffffff8481b475>] start_kernel+0x31d/0x6e9 [ 0.000000] [<ffffffff8481b158>] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [<ffffffff8481a120>] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [<ffffffff8481a120>] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [<ffffffff8481a312>] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [<ffffffff8481a454>] 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...