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: 594c35c5e14678b91da3559e865ae4de36b6447b5cf81d453704869f343a0d1a, active connections: 1). [ 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 4.4.109-g8cbe01c #10 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 7ffefc9291064b12 ffffffff84207ce8 ffffffff81d0289d [ 0.000000] ffffea0000047ce0 ffffea0000047ce0 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d20 ffffffff814fad79 ffffea0000047ce0 [ 0.000000] Call Trace: [ 0.000000] [] dump_stack+0xc1/0x124 [ 0.000000] [] print_address_description+0x189/0x260 [ 0.000000] [] kasan_report+0x285/0x370 [ 0.000000] [] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] free_all_bootmem+0xf2/0x24d [ 0.000000] [] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [] ? dmar_table_detect+0x60/0x60 [ 0.000000] [] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [] mem_init+0x13/0x74 [ 0.000000] [] start_kernel+0x31d/0x6e9 [ 0.000000] [] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [] x86_64_start_kernel+0x140/0x163 [ 0.000000] [ 0.000000] [ 0.000000] Memory state around the buggy address: [ 0.000000] ffffea0000047b80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ffffea0000047c00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] >ffffea0000047c80: 00 00 00 00 00 00 f1 f1 f1 f1 00 00 f2 f2 00 00 [ 0.000000] ^ [ 0.000000] ffffea0000047d00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ffffea0000047d80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ================================================================== [ 0.000000] Disabling lock debugging due to kernel taint [ 0.000000] Kernel panic - not syncing: panic_on_warn set ... [ 0.000000] [ 0.000000] CPU: 0 PID: 0 Comm: swapper Tainted: G B 4.4.109-g8cbe01c #10 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 7ffefc9291064b12 ffffffff84207c40 ffffffff81d0289d [ 0.000000] ffffffff83fb3615 ffffffff84207d18 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d08 ffffffff814176ca 0000000041b58ab3 [ 0.000000] Call Trace: [ 0.000000] [] dump_stack+0xc1/0x124 [ 0.000000] [] panic+0x1aa/0x388 [ 0.000000] [] ? percpu_up_read.constprop.45+0xe1/0xe1 [ 0.000000] [] kasan_end_report+0x50/0x50 [ 0.000000] [] kasan_report+0x15c/0x370 [ 0.000000] [] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] free_all_bootmem+0xf2/0x24d [ 0.000000] [] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [] ? dmar_table_detect+0x60/0x60 [ 0.000000] [] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [] mem_init+0x13/0x74 [ 0.000000] [] start_kernel+0x31d/0x6e9 [ 0.000000] [] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [] x86_64_start_kernel+0x140/0x163 [ 0.000000] Rebooting in 86400 seconds.. [ 0.000000] ACPI MEMORY or I/O RESET_REG. SeaBIOS (version 1.8.2-20171012_061934-google) Total RAM Size = 0x00000001e0000000 = 7680 MiB CPUs found: 2 Max CPUs supported: 2 found virtio-scsi at 0:3 virtio-scsi vendor='Google' product='PersistentDisk' rev='1' type=0 removable=0 virtio-scsi blksize=512 sectors=4194304 = 2048 MiB drive 0x000f3050: PCHS=0/0/0 translation=lba LCHS=520/128/63 s=4194304 Booting from Hard Disk 0... early console in decompress_kernel input_data: 0x00000000039be26e input_len: 0x0000000001424c0d 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 4.4.109-g8cbe01c (syzkaller@ci) (gcc version 7.1.1 20170620 (GCC) ) #10 SMP PREEMPT Tue Jan 2 20:37:39 UTC 2018 [ 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 1298781290 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 4.4.109-g8cbe01c #10 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 763fb0f68746ff76 ffffffff84207ce8 ffffffff81d0289d [ 0.000000] ffffea0000047ce0 ffffea0000047ce0 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d20 ffffffff814fad79 ffffea0000047ce0 [ 0.000000] Call Trace: [ 0.000000] [] dump_stack+0xc1/0x124 [ 0.000000] [] print_address_description+0x189/0x260 [ 0.000000] [] kasan_report+0x285/0x370 [ 0.000000] [] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] free_all_bootmem+0xf2/0x24d [ 0.000000] [] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [] ? dmar_table_detect+0x60/0x60 [ 0.000000] [] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [] mem_init+0x13/0x74 [ 0.000000] [] start_kernel+0x31d/0x6e9 [ 0.000000] [] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [] x86_64_start_kernel+0x140/0x163 [ 0.000000] [ 0.000000] [ 0.000000] Memory state around the buggy address: [ 0.000000] ffffea0000047b80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ffffea0000047c00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] >ffffea0000047c80: 00 00 00 00 00 00 f1 f1 f1 f1 00 00 f2 f2 00 00 [ 0.000000] ^ [ 0.000000] ffffea0000047d00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ffffea0000047d80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ================================================================== [ 0.000000] Disabling lock debugging due to kernel taint [ 0.000000] Kernel panic - not syncing: panic_on_warn set ... [ 0.000000] [ 0.000000] CPU: 0 PID: 0 Comm: swapper Tainted: G B 4.4.109-g8cbe01c #10 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 763fb0f68746ff76 ffffffff84207c40 ffffffff81d0289d [ 0.000000] ffffffff83fb3615 ffffffff84207d18 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d08 ffffffff814176ca 0000000041b58ab3 [ 0.000000] Call Trace: [ 0.000000] [] dump_stack+0xc1/0x124 [ 0.000000] [] panic+0x1aa/0x388 [ 0.000000] [] ? percpu_up_read.constprop.45+0xe1/0xe1 [ 0.000000] [] kasan_end_report+0x50/0x50 [ 0.000000] [] kasan_report+0x15c/0x370 [ 0.000000] [] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] free_all_bootmem+0xf2/0x24d [ 0.000000] [] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [] ? dmar_table_detect+0x60/0x60 [ 0.000000] [] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [] mem_init+0x13/0x74 [ 0.000000] [] start_kernel+0x31d/0x6e9 [ 0.000000] [] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [] x86_64_start_kernel+0x140/0x163 [ 0.000000] Rebooting in 86400 seconds.. [ 0.000000] ACPI MEMORY or I/O RESET_REG. [ 0.000000] ACPI MEMORY or I/O RSeaBIOS (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: 0x0000000001424c0d 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 4.4.109-g8cbe01c (syzkaller@ci) (gcc version 7.1.1 20170620 (GCC) ) #10 SMP PREEMPT Tue Jan 2 20:37:39 UTC 2018 [ 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 1243214625 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 4.4.109-g8cbe01c #10 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 6e96e1857f9e3005 ffffffff84207ce8 ffffffff81d0289d [ 0.000000] ffffea0000047ce0 ffffea0000047ce0 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d20 ffffffff814fad79 ffffea0000047ce0 [ 0.000000] Call Trace: [ 0.000000] [] dump_stack+0xc1/0x124 [ 0.000000] [] print_address_description+0x189/0x260 [ 0.000000] [] kasan_report+0x285/0x370 [ 0.000000] [] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] free_all_bootmem+0xf2/0x24d [ 0.000000] [] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [] ? dmar_table_detect+0x60/0x60 [ 0.000000] [] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [] mem_init+0x13/0x74 [ 0.000000] [] start_kernel+0x31d/0x6e9 [ 0.000000] [] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [] x86_64_start_kernel+0x140/0x163 [ 0.000000] [ 0.000000] [ 0.000000] Memory state around the buggy address: [ 0.000000] ffffea0000047b80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ffffea0000047c00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] >ffffea0000047c80: 00 00 00 00 00 00 f1 f1 f1 f1 00 00 f2 f2 00 00 [ 0.000000] ^ [ 0.000000] ffffea0000047d00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ffffea0000047d80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ================================================================== [ 0.000000] Disabling lock debugging due to kernel taint [ 0.000000] Kernel panic - not syncing: panic_on_warn set ... [ 0.000000] [ 0.000000] CPU: 0 PID: 0 Comm: swapper Tainted: G B 4.4.109-g8cbe01c #10 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 6e96e1857f9e3005 ffffffff84207c40 ffffffff81d0289d [ 0.000000] ffffffff83fb3615 ffffffff84207d18 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d08 ffffffff814176ca 0000000041b58ab3 [ 0.000000] Call Trace: [ 0.000000] [] dump_stack+0xc1/0x124 [ 0.000000] [] panic+0x1aa/0x388 [ 0.000000] [] ? percpu_up_read.constprop.45+0xe1/0xe1 [ 0.000000] [] kasan_end_report+0x50/0x50 [ 0.000000] [] kasan_report+0x15c/0x370 [ 0.000000] [] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] free_all_bootmem+0xf2/0x24d [ 0.000000] [] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [] ? dmar_table_detect+0x60/0x60 [ 0.000000] [] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [] mem_init+0x13/0x74 [ 0.000000] [] start_kernel+0x31d/0x6e9 [ 0.000000] [] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [] x86_64_start_kernel+0x140/0x163 [ 0.000000] Rebooting in 86400 seconds.. [ 0.000000] ACPI MEMORY or I/O RESET_REG. SeaBIOS (version 1.8.2-20171012_061934-google) Total RAM Size = 0x00000001e0000000 = 7680 MiB CPUs found: 2 Max CPUs supported: 2 found virtio-scsi at 0:3 virtio-scsi vendor='Google' product='PersistentDisk' rev='1' type=0 removable=0 virtio-scsi blksize=512 sectors=4194304 = 2048 MiB drive 0x000f3050: PCHS=0/0/0 translation=lba LCHS=520/128/63 s=4194304 Booting from Hard Disk 0... early console in decompress_kernel input_data: 0x00000000039be26e input_len: 0x0000000001424c0d 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 4.4.109-g8cbe01c (syzkaller@ci) (gcc version 7.1.1 20170620 (GCC) ) #10 SMP PREEMPT Tue Jan 2 20:37:39 UTC 2018 [ 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 1271907336 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 4.4.109-g8cbe01c #10 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 726ec18483761004 ffffffff84207ce8 ffffffff81d0289d [ 0.000000] ffffea0000047ce0 ffffea0000047ce0 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d20 ffffffff814fad79 ffffea0000047ce0 [ 0.000000] Call Trace: [ 0.000000] [] dump_stack+0xc1/0x124 [ 0.000000] [] print_address_description+0x189/0x260 [ 0.000000] [] kasan_report+0x285/0x370 [ 0.000000] [] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] free_all_bootmem+0xf2/0x24d [ 0.000000] [] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [] ? dmar_table_detect+0x60/0x60 [ 0.000000] [] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [] mem_init+0x13/0x74 [ 0.000000] [] start_kernel+0x31d/0x6e9 [ 0.000000] [] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [] x86_64_start_kernel+0x140/0x163 [ 0.000000] [ 0.000000] [ 0.000000] Memory state around the buggy address: [ 0.000000] ffffea0000047b80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ffffea0000047c00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] >ffffea0000047c80: 00 00 00 00 00 00 f1 f1 f1 f1 00 00 f2 f2 00 00 [ 0.000000] ^ [ 0.000000] ffffea0000047d00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ffffea0000047d80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ================================================================== [ 0.000000] Disabling lock debugging due to kernel taint [ 0.000000] Kernel panic - not syncing: panic_on_warn set ... [ 0.000000] [ 0.000000] CPU: 0 PID: 0 Comm: swapper Tainted: G B 4.4.109-g8cbe01c #10 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 726ec18483761004 ffffffff84207c40 ffffffff81d0289d [ 0.000000] ffffffff83fb3615 ffffffff84207d18 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d08 ffffffff814176ca 0000000041b58ab3 [ 0.000000] Call Trace: [ 0.000000] [] dump_stack+0xc1/0x124 [ 0.000000] [] panic+0x1aa/0x388 [ 0.000000] [] ? percpu_up_read.constprop.45+0xe1/0xe1 [ 0.000000] [] kasan_end_report+0x50/0x50 [ 0.000000] [] kasan_report+0x15c/0x370 [ 0.000000] [] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] free_all_bootmem+0xf2/0x24d [ 0.000000] [] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [] ? dmar_table_detect+0x60/0x60 [ 0.000000] [] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [] mem_init+0x13/0x74 [ 0.000000] [] start_kernel+0x31d/0x6e9 [ 0.000000] [] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [] x86_64_start_kernel+0x140/0x163 [ 0.000000] Rebooting in 86400 seconds.. [ 0.000000] ACPI MEMORY or I/O RESET_REG. SeaBIOS (version 1.8.2-20171012_061934-google) Total RAM Size = 0x00000001e0000000 = 7680 MiB CPUs found: 2 Max CPUs supported: 2 found virtio-scsi at 0:3 virtio-scsi vendor='Google' product='PersistentDisk' rev='1' type=0 removable=0 virtio-scsi blksize=512 sectors=4194304 = 2048 MiB drive 0x000f3050: PCHS=0/0/0 translation=lba LCHS=520/128/63 s=4194304 Booting from Hard Disk 0... early console in decompress_kernel input_data: 0x00000000039be26e input_len: 0x0000000001424c0d 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 4.4.109-g8cbe01c (syzkaller@ci) (gcc version 7.1.1 20170620 (GCC) ) #10 SMP PREEMPT Tue Jan 2 20:37:39 UTC 2018 [ 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 1264086454 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 4.4.109-g8cbe01c #10 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 715fab7b8266f9fb ffffffff84207ce8 ffffffff81d0289d [ 0.000000] ffffea0000047ce0 ffffea0000047ce0 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d20 ffffffff814fad79 ffffea0000047ce0 [ 0.000000] Call Trace: [ 0.000000] [] dump_stack+0xc1/0x124 [ 0.000000] [] print_address_description+0x189/0x260 [ 0.000000] [] kasan_report+0x285/0x370 [ 0.000000] [] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] free_all_bootmem+0xf2/0x24d [ 0.000000] [] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [] ? dmar_table_detect+0x60/0x60 [ 0.000000] [] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [] mem_init+0x13/0x74 [ 0.000000] [] start_kernel+0x31d/0x6e9 [ 0.000000] [] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [] x86_64_start_kernel+0x140/0x163 [ 0.000000] [ 0.000000] [ 0.000000] Memory state around the buggy address: [ 0.000000] ffffea0000047b80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ffffea0000047c00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] >ffffea0000047c80: 00 00 00 00 00 00 f1 f1 f1 f1 00 00 f2 f2 00 00 [ 0.000000] ^ [ 0.000000] ffffea0000047d00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ffffea0000047d80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ================================================================== [ 0.000000] Disabling lock debugging due to kernel taint [ 0.000000] Kernel panic - not syncing: panic_on_warn set ... [ 0.000000] [ 0.000000] CPU: 0 PID: 0 Comm: swapper Tainted: G B 4.4.109-g8cbe01c #10 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 715fab7b8266f9fb ffffffff84207c40 ffffffff81d0289d [ 0.000000] ffffffff83fb3615 ffffffff84207d18 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d08 ffffffff814176ca 0000000041b58ab3 [ 0.000000] Call Trace: [ 0.000000] [] dump_stack+0xc1/0x124 [ 0.000000] [] panic+0x1aa/0x388 [ 0.000000] [] ? percpu_up_read.constprop.45+0xe1/0xe1 [ 0.000000] [] kasan_end_report+0x50/0x50 [ 0.000000] [] kasan_report+0x15c/0x370 [ 0.000000] [] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] free_all_bootmem+0xf2/0x24d [ 0.000000] [] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [] ? dmar_table_detect+0x60/0x60 [ 0.000000] [] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [] mem_init+0x13/0x74 [ 0.000000] [] start_kernel+0x31d/0x6e9 [ 0.000000] [] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [] x86_64_start_kernel+0x140/0x163 [ 0.000000] Rebooting in 86400 seconds.. [ 0.000000] ACPI MEMORY or I/O RESET_REG. SeaBIOS (version 1.8.2-20171012_061934-google) Total RAM Size = 0x00000001e0000000 = 7680 MiB CPUs found: 2 Max CPUs supported: 2 found virtio-scsi at 0:3 virtio-scsi vendor='Google' product='PersistentDisk' rev='1' type=0 removable=0 virtio-scsi blksize=512 sectors=4194304 = 2048 MiB drive 0x000f3050: PCHS=0/0/0 translation=lba LCHS=520/128/63 s=4194304 Booting from Hard Disk 0... early console in decompress_kernel input_data: 0x00000000039be26e input_len: 0x0000000001424c0d 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 4.4.109-g8cbe01c (syzkaller@ci) (gcc version 7.1.1 20170620 (GCC) ) #10 SMP PREEMPT Tue Jan 2 20:37:39 UTC 2018 [ 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 1238247910 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 4.4.109-g8cbe01c #10 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 6de3ca257eeb18a5 ffffffff84207ce8 ffffffff81d0289d [ 0.000000] ffffea0000047ce0 ffffea0000047ce0 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d20 ffffffff814fad79 ffffea0000047ce0 [ 0.000000] Call Trace: [ 0.000000] [] dump_stack+0xc1/0x124 [ 0.000000] [] print_address_description+0x189/0x260 [ 0.000000] [] kasan_report+0x285/0x370 [ 0.000000] [] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] free_all_bootmem+0xf2/0x24d [ 0.000000] [] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [] ? dmar_table_detect+0x60/0x60 [ 0.000000] [] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [] mem_init+0x13/0x74 [ 0.000000] [] start_kernel+0x31d/0x6e9 [ 0.000000] [] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [] x86_64_start_kernel+0x140/0x163 [ 0.000000] [ 0.000000] [ 0.000000] Memory state around the buggy address: [ 0.000000] ffffea0000047b80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ffffea0000047c00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] >ffffea0000047c80: 00 00 00 00 00 00 f1 f1 f1 f1 00 00 f2 f2 00 00 [ 0.000000] ^ [ 0.000000] ffffea0000047d00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ffffea0000047d80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ================================================================== [ 0.000000] Disabling lock debugging due to kernel taint [ 0.000000] Kernel panic - not syncing: panic_on_warn set ... [ 0.000000] [ 0.000000] CPU: 0 PID: 0 Comm: swapper Tainted: G B 4.4.109-g8cbe01c #10 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 6de3ca257eeb18a5 ffffffff84207c40 ffffffff81d0289d [ 0.000000] ffffffff83fb3615 ffffffff84207d18 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d08 ffffffff814176ca 0000000041b58ab3 [ 0.000000] Call Trace: [ 0.000000] [] dump_stack+0xc1/0x124 [ 0.000000] [] panic+0x1aa/0x388 [ 0.000000] [] ? percpu_up_read.constprop.45+0xe1/0xe1 [ 0.000000] [] kasan_end_report+0x50/0x50 [ 0.000000] [] kasan_report+0x15c/0x370 [ 0.000000] [] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] free_all_bootmem+0xf2/0x24d [ 0.000000] [] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [] ? dmar_table_detect+0x60/0x60 [ 0.000000] [] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [] mem_init+0x13/0x74 [ 0.000000] [] start_kernel+0x31d/0x6e9 [ 0.000000] [] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [] x86_64_start_kernel+0x140/0x163 [ 0.000000] Rebooting in 86400 seconds.. [ 0.000000] ACPI MEMORY or I/O RESET_REG. SeaBIOS (version 1.8.2-20171012_061934-google) Total RAM Size = 0x00000001e0000000 = 7680 MiB CPUs found: 2 Max CPUs supported: 2 found virtio-scsi at 0:3 virtio-scsi vendor='Google' product='PersistentDisk' rev='1' type=0 removable=0 virtio-scsi blksize=512 sectors=4194304 = 2048 MiB drive 0x000f3050: PCHS=0/0/0 translation=lba LCHS=520/128/63 s=4194304 Booting from Hard Disk 0... early console in decompress_kernel input_data: 0x00000000039be26e input_len: 0x0000000001424c0d 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 4.4.109-g8cbe01c (syzkaller@ci) (gcc version 7.1.1 20170620 (GCC) ) #10 SMP PREEMPT Tue Jan 2 20:37:39 UTC 2018 [ 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 1209122556 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 4.4.109-g8cbe01c #10 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 69e99ca27af0eb22 ffffffff84207ce8 ffffffff81d0289d [ 0.000000] ffffea0000047ce0 ffffea0000047ce0 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d20 ffffffff814fad79 ffffea0000047ce0 [ 0.000000] Call Trace: [ 0.000000] [] dump_stack+0xc1/0x124 [ 0.000000] [] print_address_description+0x189/0x260 [ 0.000000] [] kasan_report+0x285/0x370 [ 0.000000] [] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] free_all_bootmem+0xf2/0x24d [ 0.000000] [] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [] ? dmar_table_detect+0x60/0x60 [ 0.000000] [] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [] mem_init+0x13/0x74 [ 0.000000] [] start_kernel+0x31d/0x6e9 [ 0.000000] [] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [] x86_64_start_kernel+0x140/0x163 [ 0.000000] [ 0.000000] [ 0.000000] Memory state around the buggy address: [ 0.000000] ffffea0000047b80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ffffea0000047c00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] >ffffea0000047c80: 00 00 00 00 00 00 f1 f1 f1 f1 00 00 f2 f2 00 00 [ 0.000000] ^ [ 0.000000] ffffea0000047d00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ffffea0000047d80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ================================================================== [ 0.000000] Disabling lock debugging due to kernel taint [ 0.000000] Kernel panic - not syncing: panic_on_warn set ... [ 0.000000] [ 0.000000] CPU: 0 PID: 0 Comm: swapper Tainted: G B 4.4.109-g8cbe01c #10 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 69e99ca27af0eb22 ffffffff84207c40 ffffffff81d0289d [ 0.000000] ffffffff83fb3615 ffffffff84207d18 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d08 ffffffff814176ca 0000000041b58ab3 [ 0.000000] Call Trace: [ 0.000000] [] dump_stack+0xc1/0x124 [ 0.000000] [] panic+0x1aa/0x388 [ 0.000000] [] ? percpu_up_read.constprop.45+0xe1/0xe1 [ 0.000000] [] kasan_end_report+0x50/0x50 [ 0.000000] [] kasan_report+0x15c/0x370 [ 0.000000] [] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] free_all_bootmem+0xf2/0x24d [ 0.000000] [] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [] ? dmar_table_detect+0x60/0x60 [ 0.000000] [] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [] mem_init+0x13/0x74 [ 0.000000] [] start_kernel+0x31d/0x6e9 [ 0.000000] [] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [] x86_64_start_kernel+0x140/0x163 [ 0.000000] Rebooting in 86400 seconds.. [ 0.000000] ACPI MEMORY or I/O RESET_REG. SeaBIOS (version 1.8.2-20171012_061934-google) Total RAM Size = 0x00000001e0000000 = 7680 MiB CPUs found: 2 Max CPUs supported: 2 found virtio-scsi at 0:3 virtio-scsi vendor='Google' product='PersistentDisk' rev='1' type=0 removable=0 virtio-scsi blksize=512 sectors=4194304 = 2048 MiB drive 0x000f3050: PCHS=0/0/0 translation=lba LCHS=520/128/63 s=4194304 Booting from Hard Disk 0... early console in decompress_kernel input_data: 0x00000000039be26e input_len: 0x0000000001424c0d 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 4.4.109-g8cbe01c (syzkaller@ci) (gcc version 7.1.1 20170620 (GCC) ) #10 SMP PREEMPT Tue Jan 2 20:37:39 UTC 2018 [ 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 1233848503 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 4.4.109-g8cbe01c #10 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 6d3fea3a7e4738ba ffffffff84207ce8 ffffffff81d0289d [ 0.000000] ffffea0000047ce0 ffffea0000047ce0 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d20 ffffffff814fad79 ffffea0000047ce0 [ 0.000000] Call Trace: [ 0.000000] [] dump_stack+0xc1/0x124 [ 0.000000] [] print_address_description+0x189/0x260 [ 0.000000] [] kasan_report+0x285/0x370 [ 0.000000] [] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] free_all_bootmem+0xf2/0x24d [ 0.000000] [] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [] ? dmar_table_detect+0x60/0x60 [ 0.000000] [] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [] mem_init+0x13/0x74 [ 0.000000] [] start_kernel+0x31d/0x6e9 [ 0.000000] [] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [] x86_64_start_kernel+0x140/0x163 [ 0.000000] [ 0.000000] [ 0.000000] Memory state around the buggy address: [ 0.000000] ffffea0000047b80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ffffea0000047c00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] >ffffea0000047c80: 00 00 00 00 00 00 f1 f1 f1 f1 00 00 f2 f2 00 00 [ 0.000000] ^ [ 0.000000] ffffea0000047d00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ffffea0000047d80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ================================================================== [ 0.000000] Disabling lock debugging due to kernel taint [ 0.000000] Kernel panic - not syncing: panic_on_warn set ... [ 0.000000] [ 0.000000] CPU: 0 PID: 0 Comm: swapper Tainted: G B 4.4.109-g8cbe01c #10 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 6d3fea3a7e4738ba ffffffff84207c40 ffffffff81d0289d [ 0.000000] ffffffff83fb3615 ffffffff84207d18 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d08 ffffffff814176ca 0000000041b58ab3 [ 0.000000] Call Trace: [ 0.000000] [] dump_stack+0xc1/0x124 [ 0.000000] [] panic+0x1aa/0x388 [ 0.000000] [] ? percpu_up_read.constprop.45+0xe1/0xe1 [ 0.000000] [] kasan_end_report+0x50/0x50 [ 0.000000] [] kasan_report+0x15c/0x370 [ 0.000000] [] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] free_all_bootmem+0xf2/0x24d [ 0.000000] [] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [] ? dmar_table_detect+0x60/0x60 [ 0.000000] [] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [] mem_init+0x13/0x74 [ 0.000000] [] start_kernel+0x31d/0x6e9 [ 0.000000] [] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [] x86_64_start_kernel+0x140/0x163 [ 0.000000] Rebooting in 86400 seconds.. [ 0.000000] ACPI MEMORY or I/O RESET_REG. SeaBIOS (version 1.8.2-20171012_061934-google) Total RAM Size = 0x00000001e0000000 = 7680 MiB CPUs found: 2 Max CPUs supported: 2 found virtio-scsi at 0:3 virtio-scsi vendor='Google' product='PersistentDisk' rev='1' type=0 removable=0 virtio-scsi blksize=512 sectors=4194304 = 2048 MiB drive 0x000f3050: PCHS=0/0/0 translation=lba LCHS=520/128/63 s=4194304 Booting from Hard Disk 0... early console in decompress_kernel input_data: 0x00000000039be26e input_len: 0x0000000001424c0d 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 4.4.109-g8cbe01c (syzkaller@ci) (gcc version 7.1.1 20170620 (GCC) ) #10 SMP PREEMPT Tue Jan 2 20:37:39 UTC 2018 [ 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 1243259855 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 4.4.109-g8cbe01c #10 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 6e671a917f6e6911 ffffffff84207ce8 ffffffff81d0289d [ 0.000000] ffffea0000047ce0 ffffea0000047ce0 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d20 ffffffff814fad79 ffffea0000047ce0 [ 0.000000] Call Trace: [ 0.000000] [] dump_stack+0xc1/0x124 [ 0.000000] [] print_address_description+0x189/0x260 [ 0.000000] [] kasan_report+0x285/0x370 [ 0.000000] [] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] free_all_bootmem+0xf2/0x24d [ 0.000000] [] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [] ? dmar_table_detect+0x60/0x60 [ 0.000000] [] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [] mem_init+0x13/0x74 [ 0.000000] [] start_kernel+0x31d/0x6e9 [ 0.000000] [] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [] x86_64_start_kernel+0x140/0x163 [ 0.000000] [ 0.000000] [ 0.000000] Memory state around the buggy address: [ 0.000000] ffffea0000047b80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ffffea0000047c00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] >ffffea0000047c80: 00 00 00 00 00 00 f1 f1 f1 f1 00 00 f2 f2 00 00 [ 0.000000] ^ [ 0.000000] ffffea0000047d00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ffffea0000047d80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ================================================================== [ 0.000000] Disabling lock debugging due to kernel taint [ 0.000000] Kernel panic - not syncing: panic_on_warn set ... [ 0.000000] [ 0.000000] CPU: 0 PID: 0 Comm: swapper Tainted: G B 4.4.109-g8cbe01c #10 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 6e671a917f6e6911 ffffffff84207c40 ffffffff81d0289d [ 0.000000] ffffffff83fb3615 ffffffff84207d18 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d08 ffffffff814176ca 0000000041b58ab3 [ 0.000000] Call Trace: [ 0.000000] [] dump_stack+0xc1/0x124 [ 0.000000] [] panic+0x1aa/0x388 [ 0.000000] [] ? percpu_up_read.constprop.45+0xe1/0xe1 [ 0.000000] [] kasan_end_report+0x50/0x50 [ 0.000000] [] kasan_report+0x15c/0x370 [ 0.000000] [] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] free_all_bootmem+0xf2/0x24d [ 0.000000] [] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [] ? dmar_table_detect+0x60/0x60 [ 0.000000] [] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [] mem_init+0x13/0x74 [ 0.000000] [] start_kernel+0x31d/0x6e9 [ 0.000000] [] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [] x86_64_start_kernel+0x140/0x163 [ 0.000000] Rebooting in 86400 seconds.. [ 0.000000] ACPI MEMORY or I/O RESET_REG. SeaBIOS (version 1.8.2-20171012_061934-google) Total RAM Size = 0x00000001e0000000 = 7680 MiB CPUs found: 2 Max CPUs supported: 2 found virtio-scsi at 0:3 virtio-scsi vendor='Google' product='PersistentDisk' rev='1' type=0 removable=0 virtio-scsi blksize=512 sectors=4194304 = 2048 MiB drive 0x000f3050: PCHS=0/0/0 translation=lba LCHS=520/128/63 s=4194304 Booting from Hard Disk 0... early console in decompress_kernel input_data: 0x00000000039be26e input_len: 0x0000000001424c0d 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 4.4.109-g8cbe01c (syzkaller@ci) (gcc version 7.1.1 20170620 (GCC) ) #10 SMP PREEMPT Tue Jan 2 20:37:39 UTC 2018 [ 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 1262266030 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 4.4.109-g8cbe01c #10 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 7112dec7821a2d47 ffffffff84207ce8 ffffffff81d0289d [ 0.000000] ffffea0000047ce0 ffffea0000047ce0 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d20 ffffffff814fad79 ffffea0000047ce0 [ 0.000000] Call Trace: [ 0.000000] [] dump_stack+0xc1/0x124 [ 0.000000] [] print_address_description+0x189/0x260 [ 0.000000] [] kasan_report+0x285/0x370 [ 0.000000] [] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] free_all_bootmem+0xf2/0x24d [ 0.000000] [] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [] ? dmar_table_detect+0x60/0x60 [ 0.000000] [] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [] mem_init+0x13/0x74 [ 0.000000] [] start_kernel+0x31d/0x6e9 [ 0.000000] [] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [] x86_64_start_kernel+0x140/0x163 [ 0.000000] [ 0.000000] [ 0.000000] Memory state around the buggy address: [ 0.000000] ffffea0000047b80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ffffea0000047c00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] >ffffea0000047c80: 00 00 00 00 00 00 f1 f1 f1 f1 00 00 f2 f2 00 00 [ 0.000000] ^ [ 0.000000] ffffea0000047d00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ffffea0000047d80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ================================================================== [ 0.000000] Disabling lock debugging due to kernel taint [ 0.000000] Kernel panic - not syncing: panic_on_warn set ... [ 0.000000] [ 0.000000] CPU: 0 PID: 0 Comm: swapper Tainted: G B 4.4.109-g8cbe01c #10 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 7112dec7821a2d47 ffffffff84207c40 ffffffff81d0289d [ 0.000000] ffffffff83fb3615 ffffffff84207d18 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d08 ffffffff814176ca 0000000041b58ab3 [ 0.000000] Call Trace: [ 0.000000] [] dump_stack+0xc1/0x124 [ 0.000000] [] panic+0x1aa/0x388 [ 0.000000] [] ? percpu_up_read.constprop.45+0xe1/0xe1 [ 0.000000] [] kasan_end_report+0x50/0x50 [ 0.000000] [] kasan_report+0x15c/0x370 [ 0.000000] [] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] free_all_bootmem+0xf2/0x24d [ 0.000000] [] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [] ? dmar_table_detect+0x60/0x60 [ 0.000000] [] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [] mem_init+0x13/0x74 [ 0.000000] [] start_kernel+0x31d/0x6e9 [ 0.000000] [] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [] x86_64_start_kernel+0x140/0x163 [ 0.000000] Rebooting in 86400 seconds.. [ 0.000000] ACPI MEMORY or I/O RESET_REG. SeaBIOS (version 1.8.2-20171012_061934-google) Total RAM Size = 0x00000001e0000000 = 7680 MiB CPUs found: 2 Max CPUs supported: 2 found virtio-scsi at 0:3 virtio-scsi vendor='Google' product='PersistentDisk' rev='1' type=0 removable=0 virtio-scsi blksize=512 sectors=4194304 = 2048 MiB drive 0x000f3050: PCHS=0/0/0 translation=lba LCHS=520/128/63 s=4194304 Booting from Hard Disk 0... early console in decompress_kernel input_data: 0x00000000039be26e input_len: 0x0000000001424c0d 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 4.4.109-g8cbe01c (syzkaller@ci) (gcc version 7.1.1 20170620 (GCC) ) #10 SMP PREEMPT Tue Jan 2 20:37:39 UTC 2018 [ 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 1439160925 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 4.4.109-g8cbe01c #10 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 88eff64699f744c6 ffffffff84207ce8 ffffffff81d0289d [ 0.000000] ffffea0000047ce0 ffffea0000047ce0 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d20 ffffffff814fad79 ffffea0000047ce0 [ 0.000000] Call Trace: [ 0.000000] [] dump_stack+0xc1/0x124 [ 0.000000] [] print_address_description+0x189/0x260 [ 0.000000] [] kasan_report+0x285/0x370 [ 0.000000] [] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] free_all_bootmem+0xf2/0x24d [ 0.000000] [] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [] ? dmar_table_detect+0x60/0x60 [ 0.000000] [] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [] mem_init+0x13/0x74 [ 0.000000] [] start_kernel+0x31d/0x6e9 [ 0.000000] [] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [] x86_64_start_kernel+0x140/0x163 [ 0.000000] [ 0.000000] [ 0.000000] Memory state around the buggy address: [ 0.000000] ffffea0000047b80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ffffea0000047c00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] >ffffea0000047c80: 00 00 00 00 00 00 f1 f1 f1 f1 00 00 f2 f2 00 00 [ 0.000000] ^ [ 0.000000] ffffea0000047d00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ffffea0000047d80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ================================================================== [ 0.000000] Disabling lock debugging due to kernel taint [ 0.000000] Kernel panic - not syncing: panic_on_warn set ... [ 0.000000] [ 0.000000] CPU: 0 PID: 0 Comm: swapper Tainted: G B 4.4.109-g8cbe01c #10 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 88eff64699f744c6 ffffffff84207c40 ffffffff81d0289d [ 0.000000] ffffffff83fb3615 ffffffff84207d18 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d08 ffffffff814176ca 0000000041b58ab3 [ 0.000000] Call Trace: [ 0.000000] [] dump_stack+0xc1/0x124 [ 0.000000] [] panic+0x1aa/0x388 [ 0.000000] [] ? percpu_up_read.constprop.45+0xe1/0xe1 [ 0.000000] [] kasan_end_report+0x50/0x50 [ 0.000000] [] kasan_report+0x15c/0x370 [ 0.000000] [] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] free_all_bootmem+0xf2/0x24d [ 0.000000] [] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [] ? dmar_table_detect+0x60/0x60 [ 0.000000] [] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [] mem_init+0x13/0x74 [ 0.000000] [] start_kernel+0x31d/0x6e9 [ 0.000000] [] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [] x86_64_start_kernel+0x140/0x163 [ 0.000000] Rebooting in 86400 seconds.. [ 0.000000] ACPI MEMORY or I/O RESET_REG. SeaBIOS (version 1.8.2-20171012_061934-google) Total RAM Size = 0x00000001e0000000 = 7680 MiB CPUs found: 2 Max CPUs supported: 2 found virtio-scsi at 0:3 virtio-scsi vendor='Google' product='PersistentDisk' rev='1' type=0 removable=0 virtio-scsi blksize=512 sectors=4194304 = 2048 MiB drive 0x000f3050: PCHS=0/0/0 translation=lba LCHS=520/128/63 s=4194304 Booting from Hard Disk 0... early console in decompress_kernel input_data: 0x00000000039be26e input_len: 0x0000000001424c0d 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 4.4.109-g8cbe01c (syzkaller@ci) (gcc version 7.1.1 20170620 (GCC) ) #10 SMP PREEMPT Tue Jan 2 20:37:39 UTC 2018 [ 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 1410855674 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 4.4.109-g8cbe01c #10 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 85170f05961e5d85 ffffffff84207ce8 ffffffff81d0289d [ 0.000000] ffffea0000047ce0 ffffea0000047ce0 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d20 ffffffff814fad79 ffffea0000047ce0 [ 0.000000] Call Trace: [ 0.000000] [] dump_stack+0xc1/0x124 [ 0.000000] [] print_address_description+0x189/0x260 [ 0.000000] [] kasan_report+0x285/0x370 [ 0.000000] [] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] free_all_bootmem+0xf2/0x24d [ 0.000000] [] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [] ? dmar_table_detect+0x60/0x60 [ 0.000000] [] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [] mem_init+0x13/0x74 [ 0.000000] [] start_kernel+0x31d/0x6e9 [ 0.000000] [] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [] x86_64_start_kernel+0x140/0x163 [ 0.000000] [ 0.000000] [ 0.000000] Memory state around the buggy address: [ 0.000000] ffffea0000047b80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ffffea0000047c00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] >ffffea0000047c80: 00 00 00 00 00 00 f1 f1 f1 f1 00 00 f2 f2 00 00 [ 0.000000] ^ [ 0.000000] ffffea0000047d00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ffffea0000047d80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ================================================================== [ 0.000000] Disabling lock debugging due to kernel taint [ 0.000000] Kernel panic - not syncing: panic_on_warn set ... [ 0.000000] [ 0.000000] CPU: 0 PID: 0 Comm: swapper Tainted: G B 4.4.109-g8cbe01c #10 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 85170f05961e5d85 ffffffff84207c40 ffffffff81d0289d [ 0.000000] ffffffff83fb3615 ffffffff84207d18 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d08 ffffffff814176ca 0000000041b58ab3 [ 0.000000] Call Trace: [ 0.000000] [] dump_stack+0xc1/0x124 [ 0.000000] [] panic+0x1aa/0x388 [ 0.000000] [] ? percpu_up_read.constprop.45+0xe1/0xe1 [ 0.000000] [] kasan_end_report+0x50/0x50 [ 0.000000] [] kasan_report+0x15c/0x370 [ 0.000000] [] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] free_all_bootmem+0xf2/0x24d [ 0.000000] [] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [] ? dmar_table_detect+0x60/0x60 [ 0.000000] [] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [] mem_init+0x13/0x74 [ 0.000000] [] start_kernel+0x31d/0x6e9 [ 0.000000] [] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [] x86_64_start_kernel+0x140/0x163 [ 0.000000] Rebooting in 86400 seconds.. [ 0.000000] ACPI MEMORY or I/O RESET_REG. SeaBIOS (version 1.8.2-20171012_061934-google) Total RAM Size = 0x00000001e0000000 = 7680 MiB CPUs found: 2 Max CPUs supported: 2 found virtio-scsi at 0:3 virtio-scsi vendor='Google' product='PersistentDisk' rev='1' type=0 removable=0 virtio-scsi blksize=512 sectors=4194304 = 2048 MiB drive 0x000f3050: PCHS=0/0/0 translation=lba LCHS=520/128/63 s=4194304 Booting from Hard Disk 0... early console in decompress_kernel input_data: 0x00000000039be26e input_len: 0x0000000001424c0d 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 4.4.109-g8cbe01c (syzkaller@ci) (gcc version 7.1.1 20170620 (GCC) ) #10 SMP PREEMPT Tue Jan 2 20:37:39 UTC 2018 [ 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 1246467164 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 4.4.109-g8cbe01c #10 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 6eead3c67ff22246 ffffffff84207ce8 ffffffff81d0289d [ 0.000000] ffffea0000047ce0 ffffea0000047ce0 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d20 ffffffff814fad79 ffffea0000047ce0 [ 0.000000] Call Trace: [ 0.000000] [] dump_stack+0xc1/0x124 [ 0.000000] [] print_address_description+0x189/0x260 [ 0.000000] [] kasan_report+0x285/0x370 [ 0.000000] [] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] free_all_bootmem+0xf2/0x24d [ 0.000000] [] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [] ? dmar_table_detect+0x60/0x60 [ 0.000000] [] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [] mem_init+0x13/0x74 [ 0.000000] [] start_kernel+0x31d/0x6e9 [ 0.000000] [] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [] x86_64_start_kernel+0x140/0x163 [ 0.000000] [ 0.000000] [ 0.000000] Memory state around the buggy address: [ 0.000000] ffffea0000047b80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ffffea0000047c00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] >ffffea0000047c80: 00 00 00 00 00 00 f1 f1 f1 f1 00 00 f2 f2 00 00 [ 0.000000] ^ [ 0.000000] ffffea0000047d00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ffffea0000047d80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ================================================================== [ 0.000000] Disabling lock debugging due to kernel taint [ 0.000000] Kernel panic - not syncing: panic_on_warn set ... [ 0.000000] [ 0.000000] CPU: 0 PID: 0 Comm: swapper Tainted: G B 4.4.109-g8cbe01c #10 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 6eead3c67ff22246 ffffffff84207c40 ffffffff81d0289d [ 0.000000] ffffffff83fb3615 ffffffff84207d18 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d08 ffffffff814176ca 0000000041b58ab3 [ 0.000000] Call Trace: [ 0.000000] [] dump_stack+0xc1/0x124 [ 0.000000] [] panic+0x1aa/0x388 [ 0.000000] [] ? percpu_up_read.constprop.45+0xe1/0xe1 [ 0.000000] [] kasan_end_report+0x50/0x50 [ 0.000000] [] kasan_report+0x15c/0x370 [ 0.000000] [] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] free_all_bootmem+0xf2/0x24d [ 0.000000] [] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [] ? dmar_table_detect+0x60/0x60 [ 0.000000] [] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [] mem_init+0x13/0x74 [ 0.000000] [] start_kernel+0x31d/0x6e9 [ 0.000000] [] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [] x86_64_start_kernel+0x140/0x163 [ 0.000000] Rebooting in 86400 seconds.. [ 0.000000] ACPI MEMORY or I/O RESET_REG. SeaBIOS (version 1.8.2-20171012_061934-google) Total RAM Size = 0x00000001e0000000 = 7680 MiB CPUs found: 2 Max CPUs supported: 2 found virtio-scsi at 0:3 virtio-scsi vendor='Google' product='PersistentDisk' rev='1' type=0 removable=0 virtio-scsi blksize=512 sectors=4194304 = 2048 MiB drive 0x000f3050: PCHS=0/0/0 translation=lba LCHS=520/128/63 s=4194304 Booting from Hard Disk 0... early console in decompress_kernel input_data: 0x00000000039be26e input_len: 0x0000000001424c0d 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 4.4.109-g8cbe01c (syzkaller@ci) (gcc version 7.1.1 20170620 (GCC) ) #10 SMP PREEMPT Tue Jan 2 20:37:39 UTC 2018 [ 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 1318011653 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 4.4.109-g8cbe01c #10 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 75f9dd6d87012bed ffffffff84207ce8 ffffffff81d0289d [ 0.000000] ffffea0000047ce0 ffffea0000047ce0 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d20 ffffffff814fad79 ffffea0000047ce0 [ 0.000000] Call Trace: [ 0.000000] [] dump_stack+0xc1/0x124 [ 0.000000] [] print_address_description+0x189/0x260 [ 0.000000] [] kasan_report+0x285/0x370 [ 0.000000] [] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] free_all_bootmem+0xf2/0x24d [ 0.000000] [] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [] ? dmar_table_detect+0x60/0x60 [ 0.000000] [] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [] mem_init+0x13/0x74 [ 0.000000] [] start_kernel+0x31d/0x6e9 [ 0.000000] [] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [] x86_64_start_kernel+0x140/0x163 [ 0.000000] [ 0.000000] [ 0.000000] Memory state around the buggy address: [ 0.000000] ffffea0000047b80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ffffea0000047c00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] >ffffea0000047c80: 00 00 00 00 00 00 f1 f1 f1 f1 00 00 f2 f2 00 00 [ 0.000000] ^ [ 0.000000] ffffea0000047d00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ffffea0000047d80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ================================================================== [ 0.000000] Disabling lock debugging due to kernel taint [ 0.000000] Kernel panic - not syncing: panic_on_warn set ... [ 0.000000] [ 0.000000] CPU: 0 PID: 0 Comm: swapper Tainted: G B 4.4.109-g8cbe01c #10 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 75f9dd6d87012bed ffffffff84207c40 ffffffff81d0289d [ 0.000000] ffffffff83fb3615 ffffffff84207d18 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d08 ffffffff814176ca 0000000041b58ab3 [ 0.000000] Call Trace: [ 0.000000] [] dump_stack+0xc1/0x124 [ 0.000000] [] panic+0x1aa/0x388 [ 0.000000] [] ? percpu_up_read.constprop.45+0xe1/0xe1 [ 0.000000] [] kasan_end_report+0x50/0x50 [ 0.000000] [] kasan_report+0x15c/0x370 [ 0.000000] [] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] free_all_bootmem+0xf2/0x24d [ 0.000000] [] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [] ? dmar_table_detect+0x60/0x60 [ 0.000000] [] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [] mem_init+0x13/0x74 [ 0.000000] [] start_kernel+0x31d/0x6e9 [ 0.000000] [] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [] x86_64_start_kernel+0x140/0x163 [ 0.000000] Rebooting in 86400 seconds.. [ 0.000000] ACPI MEMORY or I/O RESET_REG. SeaBIOS (version 1.8.2-20171012_061934-google) Total RAM Size = 0x00000001e0000000 = 7680 MiB CPUs found: 2 Max CPUs supported: 2 found virtio-scsi at 0:3 virtio-scsi vendor='Google' product='PersistentDisk' rev='1' type=0 removable=0 virtio-scsi blksize=512 sectors=4194304 = 2048 MiB drive 0x000f3050: PCHS=0/0/0 translation=lba LCHS=520/128/63 s=4194304 Booting from Hard Disk 0... early console in decompress_kernel input_data: 0x00000000039be26e input_len: 0x0000000001424c0d 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 4.4.109-g8cbe01c (syzkaller@ci) (gcc version 7.1.1 20170620 (GCC) ) #10 SMP PREEMPT Tue Jan 2 20:37:39 UTC 2018 [ 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 1329867192 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 4.4.109-g8cbe01c #10 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 79f575568afcc3d6 ffffffff84207ce8 ffffffff81d0289d [ 0.000000] ffffea0000047ce0 ffffea0000047ce0 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d20 ffffffff814fad79 ffffea0000047ce0 [ 0.000000] Call Trace: [ 0.000000] [] dump_stack+0xc1/0x124 [ 0.000000] [] print_address_description+0x189/0x260 [ 0.000000] [] kasan_report+0x285/0x370 [ 0.000000] [] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] free_all_bootmem+0xf2/0x24d [ 0.000000] [] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [] ? dmar_table_detect+0x60/0x60 [ 0.000000] [] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [] mem_init+0x13/0x74 [ 0.000000] [] start_kernel+0x31d/0x6e9 [ 0.000000] [] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [] x86_64_start_kernel+0x140/0x163 [ 0.000000] [ 0.000000] [ 0.000000] Memory state around the buggy address: [ 0.000000] ffffea0000047b80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ffffea0000047c00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] >ffffea0000047c80: 00 00 00 00 00 00 f1 f1 f1 f1 00 00 f2 f2 00 00 [ 0.000000] ^ [ 0.000000] ffffea0000047d00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ffffea0000047d80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ================================================================== [ 0.000000] Disabling lock debugging due to kernel taint [ 0.000000] Kernel panic - not syncing: panic_on_warn set ... [ 0.000000] [ 0.000000] CPU: 0 PID: 0 Comm: swapper Tainted: G B 4.4.109-g8cbe01c #10 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 79f575568afcc3d6 ffffffff84207c40 ffffffff81d0289d [ 0.000000] ffffffff83fb3615 ffffffff84207d18 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d08 ffffffff814176ca 0000000041b58ab3 [ 0.000000] Call Trace: [ 0.000000] [] dump_stack+0xc1/0x124 [ 0.000000] [] panic+0x1aa/0x388 [ 0.000000] [] ? percpu_up_read.constprop.45+0xe1/0xe1 [ 0.000000] [] kasan_end_report+0x50/0x50 [ 0.000000] [] kasan_report+0x15c/0x370 [ 0.000000] [] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] free_all_bootmem+0xf2/0x24d [ 0.000000] [] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [] ? dmar_table_detect+0x60/0x60 [ 0.000000] [] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [] mem_init+0x13/0x74 [ 0.000000] [] start_kernel+0x31d/0x6e9 [ 0.000000] [] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [] x86_64_start_kernel+0x140/0x163 [ 0.000000] Rebooting in 86400 seconds.. [ 0.000000] ACPI MEMORY or I/O RESET_REG. SeaBIOS (version 1.8.2-20171012_061934-google) Total RAM Size = 0x00000001e0000000 = 7680 MiB CPUs found: 2 Max CPUs supported: 2 found virtio-scsi at 0:3 virtio-scsi vendor='Google' product='PersistentDisk' rev='1' type=0 removable=0 virtio-scsi blksize=512 sectors=4194304 = 2048 MiB drive 0x000f3050: PCHS=0/0/0 translation=lba LCHS=520/128/63 s=4194304 Booting from Hard Disk 0... early console in decompress_kernel input_data: 0x00000000039be26e input_len: 0x0000000001424c0d 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 4.4.109-g8cbe01c (syzkaller@ci) (gcc version 7.1.1 20170620 (GCC) ) #10 SMP PREEMPT Tue Jan 2 20:37:39 UTC 2018 [ 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 1265670945 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 4.4.109-g8cbe01c #10 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 71d5fb8d82dd4a0d ffffffff84207ce8 ffffffff81d0289d [ 0.000000] ffffea0000047ce0 ffffea0000047ce0 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d20 ffffffff814fad79 ffffea0000047ce0 [ 0.000000] Call Trace: [ 0.000000] [] dump_stack+0xc1/0x124 [ 0.000000] [] print_address_description+0x189/0x260 [ 0.000000] [] kasan_report+0x285/0x370 [ 0.000000] [] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] free_all_bootmem+0xf2/0x24d [ 0.000000] [] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [] ? dmar_table_detect+0x60/0x60 [ 0.000000] [] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [] mem_init+0x13/0x74 [ 0.000000] [] start_kernel+0x31d/0x6e9 [ 0.000000] [] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [] x86_64_start_kernel+0x140/0x163 [ 0.000000] [ 0.000000] [ 0.000000] Memory state around the buggy address: [ 0.000000] ffffea0000047b80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ffffea0000047c00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] >ffffea0000047c80: 00 00 00 00 00 00 f1 f1 f1 f1 00 00 f2 f2 00 00 [ 0.000000] ^ [ 0.000000] ffffea0000047d00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ffffea0000047d80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ================================================================== [ 0.000000] Disabling lock debugging due to kernel taint [ 0.000000] Kernel panic - not syncing: panic_on_warn set ... [ 0.000000] [ 0.000000] CPU: 0 PID: 0 Comm: swapper Tainted: G B 4.4.109-g8cbe01c #10 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 71d5fb8d82dd4a0d ffffffff84207c40 ffffffff81d0289d [ 0.000000] ffffffff83fb3615 ffffffff84207d18 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d08 ffffffff814176ca 0000000041b58ab3 [ 0.000000] Call Trace: [ 0.000000] [] dump_stack+0xc1/0x124 [ 0.000000] [] panic+0x1aa/0x388 [ 0.000000] [] ? percpu_up_read.constprop.45+0xe1/0xe1 [ 0.000000] [] kasan_end_report+0x50/0x50 [ 0.000000] [] kasan_report+0x15c/0x370 [ 0.000000] [] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] free_all_bootmem+0xf2/0x24d [ 0.000000] [] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [] ? dmar_table_detect+0x60/0x60 [ 0.000000] [] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [] mem_init+0x13/0x74 [ 0.000000] [] start_kernel+0x31d/0x6e9 [ 0.000000] [] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [] x86_64_start_kernel+0x140/0x163 [ 0.000000] Rebooting in 86400 seconds.. [ 0.000000] ACPI MEMORY or I/O RESET_REG. SeaBIOS (version 1.8.2-20171012_061934-google) Total RAM Size = 0x00000001e0000000 = 7680 MiB CPUs found: 2 Max CPUs supported: 2 found virtio-scsi at 0:3 virtio-scsi vendor='Google' product='PersistentDisk' rev='1' type=0 removable=0 virtio-scsi blksize=512 sectors=4194304 = 2048 MiB drive 0x000f3050: PCHS=0/0/0 translation=lba LCHS=520/128/63 s=4194304 Booting from Hard Disk 0... early console in decompress_kernel input_data: 0x00000000039be26e input_len: 0x0000000001424c0d 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 4.4.109-g8cbe01c (syzkaller@ci) (gcc version 7.1.1 20170620 (GCC) ) #10 SMP PREEMPT Tue Jan 2 20:37:39 UTC 2018 [ 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 1274023848 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 4.4.109-g8cbe01c #10 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 72c909c083d05840 ffffffff84207ce8 ffffffff81d0289d [ 0.000000] ffffea0000047ce0 ffffea0000047ce0 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d20 ffffffff814fad79 ffffea0000047ce0 [ 0.000000] Call Trace: [ 0.000000] [] dump_stack+0xc1/0x124 [ 0.000000] [] print_address_description+0x189/0x260 [ 0.000000] [] kasan_report+0x285/0x370 [ 0.000000] [] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] free_all_bootmem+0xf2/0x24d [ 0.000000] [] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [] ? dmar_table_detect+0x60/0x60 [ 0.000000] [] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [] mem_init+0x13/0x74 [ 0.000000] [] start_kernel+0x31d/0x6e9 [ 0.000000] [] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [] x86_64_start_kernel+0x140/0x163 [ 0.000000] [ 0.000000] [ 0.000000] Memory state around the buggy address: [ 0.000000] ffffea0000047b80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ffffea0000047c00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] >ffffea0000047c80: 00 00 00 00 00 00 f1 f1 f1 f1 00 00 f2 f2 00 00 [ 0.000000] ^ [ 0.000000] ffffea0000047d00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ffffea0000047d80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ================================================================== [ 0.000000] Disabling lock debugging due to kernel taint [ 0.000000] Kernel panic - not syncing: panic_on_warn set ... [ 0.000000] [ 0.000000] CPU: 0 PID: 0 Comm: swapper Tainted: G B 4.4.109-g8cbe01c #10 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 72c909c083d05840 ffffffff84207c40 ffffffff81d0289d [ 0.000000] ffffffff83fb3615 ffffffff84207d18 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d08 ffffffff814176ca 0000000041b58ab3 [ 0.000000] Call Trace: [ 0.000000] [] dump_stack+0xc1/0x124 [ 0.000000] [] panic+0x1aa/0x388 [ 0.000000] [] ? percpu_up_read.constprop.45+0xe1/0xe1 [ 0.000000] [] kasan_end_report+0x50/0x50 [ 0.000000] [] kasan_report+0x15c/0x370 [ 0.000000] [] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] free_all_bootmem+0xf2/0x24d [ 0.000000] [] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [] ? dmar_table_detect+0x60/0x60 [ 0.000000] [] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [] mem_init+0x13/0x74 [ 0.000000] [] start_kernel+0x31d/0x6e9 [ 0.000000] [] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [] x86_64_start_kernel+0x140/0x163 [ 0.000000] Rebooting in 86400 seconds.. [ 0.000000] ACPI MEMORY or I/O RESET_REG. SeaBIOS (version 1.8.2-20171012_061934-google) Total RAM Size = 0x00000001e0000000 = 7680 MiB CPUs found: 2 Max CPUs supported: 2 found virtio-scsi at 0:3 virtio-scsi vendor='Google' product='PersistentDisk' rev='1' type=0 removable=0 virtio-scsi blksize=512 sectors=4194304 = 2048 MiB drive 0x000f3050: PCHS=0/0/0 translation=lba LCHS=520/128/63 s=4194304 Booting from Hard Disk 0... early console in decompress_kernel input_data: 0x00000000039be26e input_len: 0x0000000001424c0d 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 4.4.109-g8cbe01c (syzkaller@ci) (gcc version 7.1.1 20170620 (GCC) ) #10 SMP PREEMPT Tue Jan 2 20:37:39 UTC 2018 [ 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 1240727610 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 4.4.109-g8cbe01c #10 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 6d6029337e6777b3 ffffffff84207ce8 ffffffff81d0289d [ 0.000000] ffffea0000047ce0 ffffea0000047ce0 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d20 ffffffff814fad79 ffffea0000047ce0 [ 0.000000] Call Trace: [ 0.000000] [] dump_stack+0xc1/0x124 [ 0.000000] [] print_address_description+0x189/0x260 [ 0.000000] [] kasan_report+0x285/0x370 [ 0.000000] [] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] free_all_bootmem+0xf2/0x24d [ 0.000000] [] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [] ? dmar_table_detect+0x60/0x60 [ 0.000000] [] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [] mem_init+0x13/0x74 [ 0.000000] [] start_kernel+0x31d/0x6e9 [ 0.000000] [] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [] x86_64_start_kernel+0x140/0x163 [ 0.000000] [ 0.000000] [ 0.000000] Memory state around the buggy address: [ 0.000000] ffffea0000047b80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ffffea0000047c00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] >ffffea0000047c80: 00 00 00 00 00 00 f1 f1 f1 f1 00 00 f2 f2 00 00 [ 0.000000] ^ [ 0.000000] ffffea0000047d00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ffffea0000047d80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ================================================================== [ 0.000000] Disabling lock debugging due to kernel taint [ 0.000000] Kernel panic - not syncing: panic_on_warn set ... [ 0.000000] [ 0.000000] CPU: 0 PID: 0 Comm: swapper Tainted: G B 4.4.109-g8cbe01c #10 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 6d6029337e6777b3 ffffffff84207c40 ffffffff81d0289d [ 0.000000] ffffffff83fb3615 ffffffff84207d18 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d08 ffffffff814176ca 0000000041b58ab3 [ 0.000000] Call Trace: [ 0.000000] [] dump_stack+0xc1/0x124 [ 0.000000] [] panic+0x1aa/0x388 [ 0.000000] [] ? percpu_up_read.constprop.45+0xe1/0xe1 [ 0.000000] [] kasan_end_report+0x50/0x50 [ 0.000000] [] kasan_report+0x15c/0x370 [ 0.000000] [] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] free_all_bootmem+0xf2/0x24d [ 0.000000] [] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [] ? dmar_table_detect+0x60/0x60 [ 0.000000] [] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [] mem_init+0x13/0x74 [ 0.000000] [] start_kernel+0x31d/0x6e9 [ 0.000000] [] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [] x86_64_start_kernel+0x140/0x163 [ 0.000000] Rebooting in 86400 seconds.. [ 0.000000] ACPI MEMORY or I/O RESET_REG. SeaBIOS (version 1.8.2-20171012_061934-google) Total RAM Size = 0x00000001e0000000 = 7680 MiB CPUs found: 2 Max CPUs supported: 2 found virtio-scsi at 0:3 virtio-scsi vendor='Google' product='PersistentDisk' rev='1' type=0 removable=0 virtio-scsi blksize=512 sectors=4194304 = 2048 MiB drive 0x000f3050: PCHS=0/0/0 translation=lba LCHS=520/128/63 s=4194304 Booting from Hard Disk 0... early console in decompress_kernel input_data: 0x00000000039be26e input_len: 0x0000000001424c0d 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 4.4.109-g8cbe01c (syzkaller@ci) (gcc version 7.1.1 20170620 (GCC) ) #10 SMP PREEMPT Tue Jan 2 20:37:39 UTC 2018 [ 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 1216930373 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 4.4.109-g8cbe01c #10 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 6ab2811f7bb9cf9f ffffffff84207ce8 ffffffff81d0289d [ 0.000000] ffffea0000047ce0 ffffea0000047ce0 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d20 ffffffff814fad79 ffffea0000047ce0 [ 0.000000] Call Trace: [ 0.000000] [] dump_stack+0xc1/0x124 [ 0.000000] [] print_address_description+0x189/0x260 [ 0.000000] [] kasan_report+0x285/0x370 [ 0.000000] [] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] free_all_bootmem+0xf2/0x24d [ 0.000000] [] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [] ? dmar_table_detect+0x60/0x60 [ 0.000000] [] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [] mem_init+0x13/0x74 [ 0.000000] [] start_kernel+0x31d/0x6e9 [ 0.000000] [] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [] x86_64_start_kernel+0x140/0x163 [ 0.000000] [ 0.000000] [ 0.000000] Memory state around the buggy address: [ 0.000000] ffffea0000047b80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ffffea0000047c00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] >ffffea0000047c80: 00 00 00 00 00 00 f1 f1 f1 f1 00 00 f2 f2 00 00 [ 0.000000] ^ [ 0.000000] ffffea0000047d00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ffffea0000047d80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ================================================================== [ 0.000000] Disabling lock debugging due to kernel taint [ 0.000000] Kernel panic - not syncing: panic_on_warn set ... [ 0.000000] [ 0.000000] CPU: 0 PID: 0 Comm: swapper Tainted: G B 4.4.109-g8cbe01c #10 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 6ab2811f7bb9cf9f ffffffff84207c40 ffffffff81d0289d [ 0.000000] ffffffff83fb3615 ffffffff84207d18 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d08 ffffffff814176ca 0000000041b58ab3 [ 0.000000] Call Trace: [ 0.000000] [] dump_stack+0xc1/0x124 [ 0.000000] [] panic+0x1aa/0x388 [ 0.000000] [] ? percpu_up_read.constprop.45+0xe1/0xe1 [ 0.000000] [] kasan_end_report+0x50/0x50 [ 0.000000] [] kasan_report+0x15c/0x370 [ 0.000000] [] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] free_all_bootmem+0xf2/0x24d [ 0.000000] [] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [] ? dmar_table_detect+0x60/0x60 [ 0.000000] [] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [] mem_init+0x13/0x74 [ 0.000000] [] start_kernel+0x31d/0x6e9 [ 0.000000] [] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [] x86_64_start_kernel+0x140/0x163 [ 0.000000] Rebooting in 86400 seconds.. [ 0.000000] ACPI MEMORY or I/O RESET_REG. SeaBIOS (version 1.8.2-20171012_061934-google) Total RAM Size = 0x00000001e0000000 = 7680 MiB CPUs found: 2 Max CPUs supported: 2 found virtio-scsi at 0:3 virtio-scsi vendor='Google' product='PersistentDisk' rev='1' type=0 removable=0 virtio-scsi blksize=512 sectors=4194304 = 2048 MiB drive 0x000f3050: PCHS=0/0/0 translation=lba LCHS=520/128/63 s=4194304 Booting from Hard Disk 0... early console in decompress_kernel input_data: 0x00000000039be26e input_len: 0x0000000001424c0d 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 4.4.109-g8cbe01c (syzkaller@ci) (gcc version 7.1.1 20170620 (GCC) ) #10 SMP PREEMPT Tue Jan 2 20:37:39 UTC 2018 [ 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 1286076099 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 4.4.109-g8cbe01c #10 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 745a13ab8561622b ffffffff84207ce8 ffffffff81d0289d [ 0.000000] ffffea0000047ce0 ffffea0000047ce0 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d20 ffffffff814fad79 ffffea0000047ce0 [ 0.000000] Call Trace: [ 0.000000] [] dump_stack+0xc1/0x124 [ 0.000000] [] print_address_description+0x189/0x260 [ 0.000000] [] kasan_report+0x285/0x370 [ 0.000000] [] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] free_all_bootmem+0xf2/0x24d [ 0.000000] [] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [] ? dmar_table_detect+0x60/0x60 [ 0.000000] [] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [] mem_init+0x13/0x74 [ 0.000000] [] start_kernel+0x31d/0x6e9 [ 0.000000] [] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [] x86_64_start_kernel+0x140/0x163 [ 0.000000] [ 0.000000] [ 0.000000] Memory state around the buggy address: [ 0.000000] ffffea0000047b80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ffffea0000047c00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] >ffffea0000047c80: 00 00 00 00 00 00 f1 f1 f1 f1 00 00 f2 f2 00 00 [ 0.000000] ^ [ 0.000000] ffffea0000047d00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ffffea0000047d80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ================================================================== [ 0.000000] Disabling lock debugging due to kernel taint [ 0.000000] Kernel panic - not syncing: panic_on_warn set ... [ 0.000000] [ 0.000000] CPU: 0 PID: 0 Comm: swapper Tainted: G B 4.4.109-g8cbe01c #10 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 745a13ab8561622b ffffffff84207c40 ffffffff81d0289d [ 0.000000] ffffffff83fb3615 ffffffff84207d18 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d08 ffffffff814176ca 0000000041b58ab3 [ 0.000000] Call Trace: [ 0.000000] [] dump_stack+0xc1/0x124 [ 0.000000] [] panic+0x1aa/0x388 [ 0.000000] [] ? percpu_up_read.constprop.45+0xe1/0xe1 [ 0.000000] [] kasan_end_report+0x50/0x50 [ 0.000000] [] kasan_report+0x15c/0x370 [ 0.000000] [] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] free_all_bootmem+0xf2/0x24d [ 0.000000] [] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [] ? dmar_table_detect+0x60/0x60 [ 0.000000] [] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [] mem_init+0x13/0x74 [ 0.000000] [] start_kernel+0x31d/0x6e9 [ 0.000000] [] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [] x86_64_start_kernel+0x140/0x163 [ 0.000000] Rebooting in 86400 seconds.. [ 0.000000] ACPI MEMORY or I/O RESET_REG. SeaBIOS (version 1.8.2-20171012_061934-google) Total RAM Size = 0x00000001e0000000 = 7680 MiB CPUs found: 2 Max CPUs supported: 2 found virtio-scsi at 0:3 virtio-scsi vendor='Google' product='PersistentDisk' rev='1' type=0 removable=0 virtio-scsi blksize=512 sectors=4194304 = 2048 MiB drive 0x000f3050: PCHS=0/0/0 translation=lba LCHS=520/128/63 s=4194304 Booting from Hard Disk 0... early console in decompress_kernel input_data: 0x00000000039be26e input_len: 0x0000000001424c0d 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 4.4.109-g8cbe01c (syzkaller@ci) (gcc version 7.1.1 20170620 (GCC) ) #10 SMP PREEMPT Tue Jan 2 20:37:39 UTC 2018 [ 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 1240077441 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 4.4.109-g8cbe01c #10 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 6e24b6947f2c0514 ffffffff84207ce8 ffffffff81d0289d [ 0.000000] ffffea0000047ce0 ffffea0000047ce0 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d20 ffffffff814fad79 ffffea0000047ce0 [ 0.000000] Call Trace: [ 0.000000] [] dump_stack+0xc1/0x124 [ 0.000000] [] print_address_description+0x189/0x260 [ 0.000000] [] kasan_report+0x285/0x370 [ 0.000000] [] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] free_all_bootmem+0xf2/0x24d [ 0.000000] [] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [] ? dmar_table_detect+0x60/0x60 [ 0.000000] [] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [] mem_init+0x13/0x74 [ 0.000000] [] start_kernel+0x31d/0x6e9 [ 0.000000] [] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [] x86_64_start_kernel+0x140/0x163 [ 0.000000] [ 0.000000] [ 0.000000] Memory state around the buggy address: [ 0.000000] ffffea0000047b80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ffffea0000047c00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] >ffffea0000047c80: 00 00 00 00 00 00 f1 f1 f1 f1 00 00 f2 f2 00 00 [ 0.000000] ^ [ 0.000000] ffffea0000047d00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ffffea0000047d80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ================================================================== [ 0.000000] Disabling lock debugging due to kernel taint [ 0.000000] Kernel panic - not syncing: panic_on_warn set ... [ 0.000000] [ 0.000000] CPU: 0 PID: 0 Comm: swapper Tainted: G B 4.4.109-g8cbe01c #10 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 6e24b6947f2c0514 ffffffff84207c40 ffffffff81d0289d [ 0.000000] ffffffff83fb3615 ffffffff84207d18 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d08 ffffffff814176ca 0000000041b58ab3 [ 0.000000] Call Trace: [ 0.000000] [] dump_stack+0xc1/0x124 [ 0.000000] [] panic+0x1aa/0x388 [ 0.000000] [] ? percpu_up_read.constprop.45+0xe1/0xe1 [ 0.000000] [] kasan_end_report+0x50/0x50 [ 0.000000] [] kasan_report+0x15c/0x370 [ 0.000000] [] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] free_all_bootmem+0xf2/0x24d [ 0.000000] [] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [] ? dmar_table_detect+0x60/0x60 [ 0.000000] [] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [] mem_init+0x13/0x74 [ 0.000000] [] start_kernel+0x31d/0x6e9 [ 0.000000] [] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [] x86_64_start_kernel+0x140/0x163 [ 0.000000] Rebooting in 86400 seconds.. [ 0.000000] ACPI MEMORY or I/O RESET_REG. SeaBIOS (version 1.8.2-20171012_061934-google) Total RAM Size = 0x00000001e0000000 = 7680 MiB CPUs found: 2 Max CPUs supported: 2 found virtio-scsi at 0:3 virtio-scsi vendor='Google' product='PersistentDisk' rev='1' type=0 removable=0 virtio-scsi blksize=512 sectors=4194304 = 2048 MiB drive 0x000f3050: PCHS=0/0/0 translation=lba LCHS=520/128/63 s=4194304 Booting from Hard Disk 0... early console in decompress_kernel input_data: 0x00000000039be26e input_len: 0x0000000001424c0d 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 4.4.109-g8cbe01c (syzkaller@ci) (gcc version 7.1.1 20170620 (GCC) ) #10 SMP PREEMPT Tue Jan 2 20:37:39 UTC 2018 [ 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 1212923730 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 4.4.109-g8cbe01c #10 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 6a70da077b782887 ffffffff84207ce8 ffffffff81d0289d [ 0.000000] ffffea0000047ce0 ffffea0000047ce0 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d20 ffffffff814fad79 ffffea0000047ce0 [ 0.000000] Call Trace: [ 0.000000] [] dump_stack+0xc1/0x124 [ 0.000000] [] print_address_description+0x189/0x260 [ 0.000000] [] kasan_report+0x285/0x370 [ 0.000000] [] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] free_all_bootmem+0xf2/0x24d [ 0.000000] [] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [] ? dmar_table_detect+0x60/0x60 [ 0.000000] [] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [] mem_init+0x13/0x74 [ 0.000000] [] start_kernel+0x31d/0x6e9 [ 0.000000] [] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [] x86_64_start_kernel+0x140/0x163 [ 0.000000] [ 0.000000] [ 0.000000] Memory state around the buggy address: [ 0.000000] ffffea0000047b80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ffffea0000047c00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] >ffffea0000047c80: 00 00 00 00 00 00 f1 f1 f1 f1 00 00 f2 f2 00 00 [ 0.000000] ^ [ 0.000000] ffffea0000047d00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ffffea0000047d80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ================================================================== [ 0.000000] Disabling lock debugging due to kernel taint [ 0.000000] Kernel panic - not syncing: panic_on_warn set ... [ 0.000000] [ 0.000000] CPU: 0 PID: 0 Comm: swapper Tainted: G B 4.4.109-g8cbe01c #10 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 6a70da077b782887 ffffffff84207c40 ffffffff81d0289d [ 0.000000] ffffffff83fb3615 ffffffff84207d18 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d08 ffffffff814176ca 0000000041b58ab3 [ 0.000000] Call Trace: [ 0.000000] [] dump_stack+0xc1/0x124 [ 0.000000] [] panic+0x1aa/0x388 [ 0.000000] [] ? percpu_up_read.constprop.45+0xe1/0xe1 [ 0.000000] [] kasan_end_report+0x50/0x50 [ 0.000000] [] kasan_report+0x15c/0x370 [ 0.000000] [] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] free_all_bootmem+0xf2/0x24d [ 0.000000] [] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [] ? dmar_table_detect+0x60/0x60 [ 0.000000] [] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [] mem_init+0x13/0x74 [ 0.000000] [] start_kernel+0x31d/0x6e9 [ 0.000000] [] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [] x86_64_start_kernel+0x140/0x163 [ 0.000000] Rebooting in 86400 seconds.. [ 0.000000] ACPI MEMORY or I/O RESET_REG. SeaBIOS (version 1.8.2-20171012_061934-google) Total RAM Size = 0x00000001e0000000 = 7680 MiB CPUs found: 2 Max CPUs supported: 2 found virtio-scsi at 0:3 virtio-scsi vendor='Google' product='PersistentDisk' rev='1' type=0 removable=0 virtio-scsi blksize=512 sectors=4194304 = 2048 MiB drive 0x000f3050: PCHS=0/0/0 translation=lba LCHS=520/128/63 s=4194304 Booting from Hard Disk 0... early console in decompress_kernel input_data: 0x00000000039be26e input_len: 0x0000000001424c0d 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 4.4.109-g8cbe01c (syzkaller@ci) (gcc version 7.1.1 20170620 (GCC) ) #10 SMP PREEMPT Tue Jan 2 20:37:39 UTC 2018 [ 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 1370478486 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 4.4.109-g8cbe01c #10 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 800b104d91125ecd ffffffff84207ce8 ffffffff81d0289d [ 0.000000] ffffea0000047ce0 ffffea0000047ce0 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d20 ffffffff814fad79 ffffea0000047ce0 [ 0.000000] Call Trace: [ 0.000000] [] dump_stack+0xc1/0x124 [ 0.000000] [] print_address_description+0x189/0x260 [ 0.000000] [] kasan_report+0x285/0x370 [ 0.000000] [] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] free_all_bootmem+0xf2/0x24d [ 0.000000] [] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [] ? dmar_table_detect+0x60/0x60 [ 0.000000] [] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [] mem_init+0x13/0x74 [ 0.000000] [] start_kernel+0x31d/0x6e9 [ 0.000000] [] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [] x86_64_start_kernel+0x140/0x163 [ 0.000000] [ 0.000000] [ 0.000000] Memory state around the buggy address: [ 0.000000] ffffea0000047b80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ffffea0000047c00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] >ffffea0000047c80: 00 00 00 00 00 00 f1 f1 f1 f1 00 00 f2 f2 00 00 [ 0.000000] ^ [ 0.000000] ffffea0000047d00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ffffea0000047d80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ================================================================== [ 0.000000] Disabling lock debugging due to kernel taint [ 0.000000] Kernel panic - not syncing: panic_on_warn set ... [ 0.000000] [ 0.000000] CPU: 0 PID: 0 Comm: swapper Tainted: G B 4.4.109-g8cbe01c #10 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 800b104d91125ecd ffffffff84207c40 ffffffff81d0289d [ 0.000000] ffffffff83fb3615 ffffffff84207d18 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d08 ffffffff814176ca 0000000041b58ab3 [ 0.000000] Call Trace: [ 0.000000] [] dump_stack+0xc1/0x124 [ 0.000000] [] panic+0x1aa/0x388 [ 0.000000] [] ? percpu_up_read.constprop.45+0xe1/0xe1 [ 0.000000] [] kasan_end_report+0x50/0x50 [ 0.000000] [] kasan_report+0x15c/0x370 [ 0.000000] [] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] free_all_bootmem+0xf2/0x24d [ 0.000000] [] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [] ? dmar_table_detect+0x60/0x60 [ 0.000000] [] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [] mem_init+0x13/0x74 [ 0.000000] [] start_kernel+0x31d/0x6e9 [ 0.000000] [] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [] x86_64_start_kernel+0x140/0x163 [ 0.000000] Rebooting in 86400 seconds.. [ 0.000000] ACPI MEMORY or I/O RESET_REG. SeaBIOS (version 1.8.2-20171012_061934-google) Total RAM Size = 0x00000001e0000000 = 7680 MiB CPUs found: 2 Max CPUs supported: 2 found virtio-scsi at 0:3 virtio-scsi vendor='Google' product='PersistentDisk' rev='1' type=0 removable=0 virtio-scsi blksize=512 sectors=4194304 = 2048 MiB drive 0x000f3050: PCHS=0/0/0 translation=lba LCHS=520/128/63 s=4194304 Booting from Hard Disk 0... early console in decompress_kernel input_data: 0x00000000039be26e input_len: 0x0000000001424c0d 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 4.4.109-g8cbe01c (syzkaller@ci) (gcc version 7.1.1 20170620 (GCC) ) #10 SMP PREEMPT Tue Jan 2 20:37:39 UTC 2018 [ 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 1239212245 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 4.4.109-g8cbe01c #10 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 6e037ba27f0aca22 ffffffff84207ce8 ffffffff81d0289d [ 0.000000] ffffea0000047ce0 ffffea0000047ce0 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d20 ffffffff814fad79 ffffea0000047ce0 [ 0.000000] Call Trace: [ 0.000000] [] dump_stack+0xc1/0x124 [ 0.000000] [] print_address_description+0x189/0x260 [ 0.000000] [] kasan_report+0x285/0x370 [ 0.000000] [] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] free_all_bootmem+0xf2/0x24d [ 0.000000] [] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [] ? dmar_table_detect+0x60/0x60 [ 0.000000] [] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [] mem_init+0x13/0x74 [ 0.000000] [] start_kernel+0x31d/0x6e9 [ 0.000000] [] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [] x86_64_start_kernel+0x140/0x163 [ 0.000000] [ 0.000000] [ 0.000000] Memory state around the buggy address: [ 0.000000] ffffea0000047b80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ffffea0000047c00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] >ffffea0000047c80: 00 00 00 00 00 00 f1 f1 f1 f1 00 00 f2 f2 00 00 [ 0.000000] ^ [ 0.000000] ffffea0000047d00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ffffea0000047d80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ================================================================== [ 0.000000] Disabling lock debugging due to kernel taint [ 0.000000] Kernel panic - not syncing: panic_on_warn set ... [ 0.000000] [ 0.000000] CPU: 0 PID: 0 Comm: swapper Tainted: G B 4.4.109-g8cbe01c #10 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 6e037ba27f0aca22 ffffffff84207c40 ffffffff81d0289d [ 0.000000] ffffffff83fb3615 ffffffff84207d18 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d08 ffffffff814176ca 0000000041b58ab3 [ 0.000000] Call Trace: [ 0.000000] [] dump_stack+0xc1/0x124 [ 0.000000] [] panic+0x1aa/0x388 [ 0.000000] [] ? percpu_up_read.constprop.45+0xe1/0xe1 [ 0.000000] [] kasan_end_report+0x50/0x50 [ 0.000000] [] kasan_report+0x15c/0x370 [ 0.000000] [] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] free_all_bootmem+0xf2/0x24d [ 0.000000] [] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [] ? dmar_table_detect+0x60/0x60 [ 0.000000] [] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [] mem_init+0x13/0x74 [ 0.000000] [] start_kernel+0x31d/0x6e9 [ 0.000000] [] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [] x86_64_start_kernel+0x140/0x163 [ 0.000000] Rebooting in 86400 seconds.. [ 0.000000] ACPI MEMORY or I/O RESET_REG. SeaBIOS (version 1.8.2-20171012_061934-google) Total RAM Size = 0x00000001e0000000 = 7680 MiB CPUs found: 2 Max CPUs supported: 2 found virtio-scsi at 0:3 virtio-scsi vendor='Google' product='PersistentDisk' rev='1' type=0 removable=0 virtio-scsi blksize=512 sectors=4194304 = 2048 MiB drive 0x000f3050: PCHS=0/0/0 translation=lba LCHS=520/128/63 s=4194304 Booting from Hard Disk 0... early console in decompress_kernel input_data: 0x00000000039be26e input_len: 0x0000000001424c0d 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 4.4.109-g8cbe01c (syzkaller@ci) (gcc version 7.1.1 20170620 (GCC) ) #10 SMP PREEMPT Tue Jan 2 20:37:39 UTC 2018 [ 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 1438663429 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 4.4.109-g8cbe01c #10 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 897a0b549a8159d4 ffffffff84207ce8 ffffffff81d0289d [ 0.000000] ffffea0000047ce0 ffffea0000047ce0 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d20 ffffffff814fad79 ffffea0000047ce0 [ 0.000000] Call Trace: [ 0.000000] [] dump_stack+0xc1/0x124 [ 0.000000] [] print_address_description+0x189/0x260 [ 0.000000] [] kasan_report+0x285/0x370 [ 0.000000] [] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] free_all_bootmem+0xf2/0x24d [ 0.000000] [] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [] ? dmar_table_detect+0x60/0x60 [ 0.000000] [] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [] mem_init+0x13/0x74 [ 0.000000] [] start_kernel+0x31d/0x6e9 [ 0.000000] [] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [] x86_64_start_kernel+0x140/0x163 [ 0.000000] [ 0.000000] [ 0.000000] Memory state around the buggy address: [ 0.000000] ffffea0000047b80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ffffea0000047c00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] >ffffea0000047c80: 00 00 00 00 00 00 f1 f1 f1 f1 00 00 f2 f2 00 00 [ 0.000000] ^ [ 0.000000] ffffea0000047d00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ffffea0000047d80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ================================================================== [ 0.000000] Disabling lock debugging due to kernel taint [ 0.000000] Kernel panic - not syncing: panic_on_warn set ... [ 0.000000] [ 0.000000] CPU: 0 PID: 0 Comm: swapper Tainted: G B 4.4.109-g8cbe01c #10 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 897a0b549a8159d4 ffffffff84207c40 ffffffff81d0289d [ 0.000000] ffffffff83fb3615 ffffffff84207d18 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d08 ffffffff814176ca 0000000041b58ab3 [ 0.000000] Call Trace: [ 0.000000] [] dump_stack+0xc1/0x124 [ 0.000000] [] panic+0x1aa/0x388 [ 0.000000] [] ? percpu_up_read.constprop.45+0xe1/0xe1 [ 0.000000] [] kasan_end_report+0x50/0x50 [ 0.000000] [] kasan_report+0x15c/0x370 [ 0.000000] [] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] free_all_bootmem+0xf2/0x24d [ 0.000000] [] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [] ? dmar_table_detect+0x60/0x60 [ 0.000000] [] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [] mem_init+0x13/0x74 [ 0.000000] [] start_kernel+0x31d/0x6e9 [ 0.000000] [] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [] x86_64_start_kernel+0x140/0x163 [ 0.000000] Rebooting in 86400 seconds.. [ 0.000000] ACPI MEMORY or I/O RESET_REG. SeaBIOS (version 1.8.2-20171012_061934-google) Total RAM Size = 0x00000001e0000000 = 7680 MiB CPUs found: 2 Max CPUs supported: 2 found virtio-scsi at 0:3 virtio-scsi vendor='Google' product='PersistentDisk' rev='1' type=0 removable=0 virtio-scsi blksize=512 sectors=4194304 = 2048 MiB drive 0x000f3050: PCHS=0/0/0 translation=lba LCHS=520/128/63 s=4194304 Booting from Hard Disk 0... early console in decompress_kernel input_data: 0x00000000039be26e input_len: 0x0000000001424c0d 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 4.4.109-g8cbe01c (syzkaller@ci) (gcc version 7.1.1 20170620 (GCC) ) #10 SMP PREEMPT Tue Jan 2 20:37:39 UTC 2018 [ 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 1298997852 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 4.4.109-g8cbe01c #10 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 764ec6bc8756153c ffffffff84207ce8 ffffffff81d0289d [ 0.000000] ffffea0000047ce0 ffffea0000047ce0 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d20 ffffffff814fad79 ffffea0000047ce0 [ 0.000000] Call Trace: [ 0.000000] [] dump_stack+0xc1/0x124 [ 0.000000] [] print_address_description+0x189/0x260 [ 0.000000] [] kasan_report+0x285/0x370 [ 0.000000] [] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] free_all_bootmem+0xf2/0x24d [ 0.000000] [] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [] ? dmar_table_detect+0x60/0x60 [ 0.000000] [] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [] mem_init+0x13/0x74 [ 0.000000] [] start_kernel+0x31d/0x6e9 [ 0.000000] [] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [] x86_64_start_kernel+0x140/0x163 [ 0.000000] [ 0.000000] [ 0.000000] Memory state around the buggy address: [ 0.000000] ffffea0000047b80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ffffea0000047c00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] >ffffea0000047c80: 00 00 00 00 00 00 f1 f1 f1 f1 00 00 f2 f2 00 00 [ 0.000000] ^ [ 0.000000] ffffea0000047d00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ffffea0000047d80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ================================================================== [ 0.000000] Disabling lock debugging due to kernel taint [ 0.000000] Kernel panic - not syncing: panic_on_warn set ... [ 0.000000] [ 0.000000] CPU: 0 PID: 0 Comm: swapper Tainted: G B 4.4.109-g8cbe01c #10 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 764ec6bc8756153c ffffffff84207c40 ffffffff81d0289d [ 0.000000] ffffffff83fb3615 ffffffff84207d18 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d08 ffffffff814176ca 0000000041b58ab3 [ 0.000000] Call Trace: [ 0.000000] [] dump_stack+0xc1/0x124 [ 0.000000] [] panic+0x1aa/0x388 [ 0.000000] [] ? percpu_up_read.constprop.45+0xe1/0xe1 [ 0.000000] [] kasan_end_report+0x50/0x50 [ 0.000000] [] kasan_report+0x15c/0x370 [ 0.000000] [] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] free_all_bootmem+0xf2/0x24d [ 0.000000] [] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [] ? dmar_table_detect+0x60/0x60 [ 0.000000] [] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [] mem_init+0x13/0x74 [ 0.000000] [] start_kernel+0x31d/0x6e9 [ 0.000000] [] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [] x86_64_start_kernel+0x140/0x163 [ 0.000000] Rebooting in 86400 seconds.. [ 0.000000] ACPI MEMORY or I/O RESET_REG. SeaBIOS (version 1.8.2-20171012_061934-google) Total RAM Size = 0x00000001e0000000 = 7680 MiB CPUs found: 2 Max CPUs supported: 2 found virtio-scsi at 0:3 virtio-scsi vendor='Google' product='PersistentDisk' rev='1' type=0 removable=0 virtio-scsi blksize=512 sectors=4194304 = 2048 MiB drive 0x000f3050: PCHS=0/0/0 translation=lba LCHS=520/128/63 s=4194304 Booting from Hard Disk 0... early console in decompress_kernel input_data: 0x00000000039be26e input_len: 0x0000000001424c0d 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 4.4.109-g8cbe01c (syzkaller@ci) (gcc version 7.1.1 20170620 (GCC) ) #10 SMP PREEMPT Tue Jan 2 20:37:39 UTC 2018 [ 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 1375364522 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 4.4.109-g8cbe01c #10 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 80b8541e91bfa29e ffffffff84207ce8 ffffffff81d0289d [ 0.000000] ffffea0000047ce0 ffffea0000047ce0 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d20 ffffffff814fad79 ffffea0000047ce0 [ 0.000000] Call Trace: [ 0.000000] [] dump_stack+0xc1/0x124 [ 0.000000] [] print_address_description+0x189/0x260 [ 0.000000] [] kasan_report+0x285/0x370 [ 0.000000] [] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] free_all_bootmem+0xf2/0x24d [ 0.000000] [] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [] ? dmar_table_detect+0x60/0x60 [ 0.000000] [] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [] mem_init+0x13/0x74 [ 0.000000] [] start_kernel+0x31d/0x6e9 [ 0.000000] [] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [] x86_64_start_kernel+0x140/0x163 [ 0.000000] [ 0.000000] [ 0.000000] Memory state around the buggy address: [ 0.000000] ffffea0000047b80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ffffea0000047c00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] >ffffea0000047c80: 00 00 00 00 00 00 f1 f1 f1 f1 00 00 f2 f2 00 00 [ 0.000000] ^ [ 0.000000] ffffea0000047d00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ffffea0000047d80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ================================================================== [ 0.000000] Disabling lock debugging due to kernel taint [ 0.000000] Kernel panic - not syncing: panic_on_warn set ... [ 0.000000] [ 0.000000] CPU: 0 PID: 0 Comm: swapper Tainted: G B 4.4.109-g8cbe01c #10 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 80b8541e91bfa29e ffffffff84207c40 ffffffff81d0289d [ 0.000000] ffffffff83fb3615 ffffffff84207d18 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d08 ffffffff814176ca 0000000041b58ab3 [ 0.000000] Call Trace: [ 0.000000] [] dump_stack+0xc1/0x124 [ 0.000000] [] panic+0x1aa/0x388 [ 0.000000] [] ? percpu_up_read.constprop.45+0xe1/0xe1 [ 0.000000] [] kasan_end_report+0x50/0x50 [ 0.000000] [] kasan_report+0x15c/0x370 [ 0.000000] [] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] free_all_bootmem+0xf2/0x24d [ 0.000000] [] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [] ? dmar_table_detect+0x60/0x60 [ 0.000000] [] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [] mem_init+0x13/0x74 [ 0.000000] [] start_kernel+0x31d/0x6e9 [ 0.000000] [] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [] x86_64_start_kernel+0x140/0x163 [ 0.000000] Rebooting in 86400 seconds.. [ 0.000000] ACPI MEMORY or I/O RESET_REG. SeaBIOS (version 1.8.2-20171012_061934-google) Total RAM Size = 0x00000001e0000000 = 7680 MiB CPUs found: 2 Max CPUs supported: 2 found virtio-scsi at 0:3 virtio-scsi vendor='Google' product='PersistentDisk' rev='1' type=0 removable=0 virtio-scsi blksize=512 sectors=4194304 = 2048 MiB drive 0x000f3050: PCHS=0/0/0 translation=lba LCHS=520/128/63 s=4194304 Booting from Hard Disk 0... early console in decompress_kernel input_data: 0x00000000039be26e input_len: 0x0000000001424c0d 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 4.4.109-g8cbe01c (syzkaller@ci) (gcc version 7.1.1 20170620 (GCC) ) #10 SMP PREEMPT Tue Jan 2 20:37:39 UTC 2018 [ 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 1301027338 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 4.4.109-g8cbe01c #10 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 768d36d687948556 ffffffff84207ce8 ffffffff81d0289d [ 0.000000] ffffea0000047ce0 ffffea0000047ce0 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d20 ffffffff814fad79 ffffea0000047ce0 [ 0.000000] Call Trace: [ 0.000000] [] dump_stack+0xc1/0x124 [ 0.000000] [] print_address_description+0x189/0x260 [ 0.000000] [] kasan_report+0x285/0x370 [ 0.000000] [] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] free_all_bootmem+0xf2/0x24d [ 0.000000] [] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [] ? dmar_table_detect+0x60/0x60 [ 0.000000] [] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [] mem_init+0x13/0x74 [ 0.000000] [] start_kernel+0x31d/0x6e9 [ 0.000000] [] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [] x86_64_start_kernel+0x140/0x163 [ 0.000000] [ 0.000000] [ 0.000000] Memory state around the buggy address: [ 0.000000] ffffea0000047b80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ffffea0000047c00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] >ffffea0000047c80: 00 00 00 00 00 00 f1 f1 f1 f1 00 00 f2 f2 00 00 [ 0.000000] ^ [ 0.000000] ffffea0000047d00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ffffea0000047d80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ================================================================== [ 0.000000] Disabling lock debugging due to kernel taint [ 0.000000] Kernel panic - not syncing: panic_on_warn set ... [ 0.000000] [ 0.000000] CPU: 0 PID: 0 Comm: swapper Tainted: G B 4.4.109-g8cbe01c #10 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 768d36d687948556 ffffffff84207c40 ffffffff81d0289d [ 0.000000] ffffffff83fb3615 ffffffff84207d18 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d08 ffffffff814176ca 0000000041b58ab3 [ 0.000000] Call Trace: [ 0.000000] [] dump_stack+0xc1/0x124 [ 0.000000] [] panic+0x1aa/0x388 [ 0.000000] [] ? percpu_up_read.constprop.45+0xe1/0xe1 [ 0.000000] [] kasan_end_report+0x50/0x50 [ 0.000000] [] kasan_report+0x15c/0x370 [ 0.000000] [] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] free_all_bootmem+0xf2/0x24d [ 0.000000] [] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [] ? dmar_table_detect+0x60/0x60 [ 0.000000] [] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [] mem_init+0x13/0x74 [ 0.000000] [] start_kernel+0x31d/0x6e9 [ 0.000000] [] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [] x86_64_start_kernel+0x140/0x163 [ 0.000000] Rebooting in 86400 seconds.. [ 0.000000] ACPI MEMORY or I/O RESET_REG. SeaBIOS (version 1.8.2-20171012_061934-google) Total RAM Size = 0x00000001e0000000 = 7680 MiB CPUs found: 2 Max CPUs supported: 2 found virtio-scsi at 0:3 virtio-scsi vendor='Google' product='PersistentDisk' rev='1' type=0 removable=0 virtio-scsi blksize=512 sectors=4194304 = 2048 MiB drive 0x000f3050: PCHS=0/0/0 translation=lba LCHS=520/128/63 s=4194304 Booting from Hard Disk 0... early console in decompress_kernel input_data: 0x00000000039be26e input_len: 0x0000000001424c0d 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 4.4.109-g8cbe01c (syzkaller@ci) (gcc version 7.1.1 20170620 (GCC) ) #10 SMP PREEMPT Tue Jan 2 20:37:39 UTC 2018 [ 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 1243343977 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 4.4.109-g8cbe01c #10 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 6e552ece7f5c7d4e ffffffff84207ce8 ffffffff81d0289d [ 0.000000] ffffea0000047ce0 ffffea0000047ce0 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d20 ffffffff814fad79 ffffea0000047ce0 [ 0.000000] Call Trace: [ 0.000000] [] dump_stack+0xc1/0x124 [ 0.000000] [] print_address_description+0x189/0x260 [ 0.000000] [] kasan_report+0x285/0x370 [ 0.000000] [] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] free_all_bootmem+0xf2/0x24d [ 0.000000] [] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [] ? dmar_table_detect+0x60/0x60 [ 0.000000] [] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [] mem_init+0x13/0x74 [ 0.000000] [] start_kernel+0x31d/0x6e9 [ 0.000000] [] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [] x86_64_start_kernel+0x140/0x163 [ 0.000000] [ 0.000000] [ 0.000000] Memory state around the buggy address: [ 0.000000] ffffea0000047b80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ffffea0000047c00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] >ffffea0000047c80: 00 00 00 00 00 00 f1 f1 f1 f1 00 00 f2 f2 00 00 [ 0.000000] ^ [ 0.000000] ffffea0000047d00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ffffea0000047d80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ================================================================== [ 0.000000] Disabling lock debugging due to kernel taint [ 0.000000] Kernel panic - not syncing: panic_on_warn set ... [ 0.000000] [ 0.000000] CPU: 0 PID: 0 Comm: swapper Tainted: G B 4.4.109-g8cbe01c #10 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 6e552ece7f5c7d4e ffffffff84207c40 ffffffff81d0289d [ 0.000000] ffffffff83fb3615 ffffffff84207d18 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d08 ffffffff814176ca 0000000041b58ab3 [ 0.000000] Call Trace: [ 0.000000] [] dump_stack+0xc1/0x124 [ 0.000000] [] panic+0x1aa/0x388 [ 0.000000] [] ? percpu_up_read.constprop.45+0xe1/0xe1 [ 0.000000] [] kasan_end_report+0x50/0x50 [ 0.000000] [] kasan_report+0x15c/0x370 [ 0.000000] [] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] free_all_bootmem+0xf2/0x24d [ 0.000000] [] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [] ? dmar_table_detect+0x60/0x60 [ 0.000000] [] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [] mem_init+0x13/0x74 [ 0.000000] [] start_kernel+0x31d/0x6e9 [ 0.000000] [] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [] x86_64_start_kernel+0x140/0x163 [ 0.000000] Rebooting in 86400 seconds.. [ 0.000000] ACPI MEMORY or I/O RESET_REG. SeaBIOS (version 1.8.2-20171012_061934-google) Total RAM Size = 0x00000001e0000000 = 7680 MiB CPUs found: 2 Max CPUs supported: 2 found virtio-scsi at 0:3 virtio-scsi vendor='Google' product='PersistentDisk' rev='1' type=0 removable=0 virtio-scsi blksize=512 sectors=4194304 = 2048 MiB drive 0x000f3050: PCHS=0/0/0 translation=lba LCHS=520/128/63 s=4194304 Booting from Hard Disk 0... early console in decompress_kernel input_data: 0x00000000039be26e input_len: 0x0000000001424c0d 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 4.4.109-g8cbe01c (syzkaller@ci) (gcc version 7.1.1 20170620 (GCC) ) #10 SMP PREEMPT Tue Jan 2 20:37:39 UTC 2018 [ 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 1163215229 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 4.4.109-g8cbe01c #10 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 6339f2e574414165 ffffffff84207ce8 ffffffff81d0289d [ 0.000000] ffffea0000047ce0 ffffea0000047ce0 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d20 ffffffff814fad79 ffffea0000047ce0 [ 0.000000] Call Trace: [ 0.000000] [] dump_stack+0xc1/0x124 [ 0.000000] [] print_address_description+0x189/0x260 [ 0.000000] [] kasan_report+0x285/0x370 [ 0.000000] [] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] free_all_bootmem+0xf2/0x24d [ 0.000000] [] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [] ? dmar_table_detect+0x60/0x60 [ 0.000000] [] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [] mem_init+0x13/0x74 [ 0.000000] [] start_kernel+0x31d/0x6e9 [ 0.000000] [] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [] x86_64_start_kernel+0x140/0x163 [ 0.000000] [ 0.000000] [ 0.000000] Memory state around the buggy address: [ 0.000000] ffffea0000047b80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ffffea0000047c00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] >ffffea0000047c80: 00 00 00 00 00 00 f1 f1 f1 f1 00 00 f2 f2 00 00 [ 0.000000] ^ [ 0.000000] ffffea0000047d00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ffffea0000047d80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ================================================================== [ 0.000000] Disabling lock debugging due to kernel taint [ 0.000000] Kernel panic - not syncing: panic_on_warn set ... [ 0.000000] [ 0.000000] CPU: 0 PID: 0 Comm: swapper Tainted: G B 4.4.109-g8cbe01c #10 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 6339f2e574414165 ffffffff84207c40 ffffffff81d0289d [ 0.000000] ffffffff83fb3615 ffffffff84207d18 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d08 ffffffff814176ca 0000000041b58ab3 [ 0.000000] Call Trace: [ 0.000000] [] dump_stack+0xc1/0x124 [ 0.000000] [] panic+0x1aa/0x388 [ 0.000000] [] ? percpu_up_read.constprop.45+0xe1/0xe1 [ 0.000000] [] kasan_end_report+0x50/0x50 [ 0.000000] [] kasan_report+0x15c/0x370 [ 0.000000] [] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] free_all_bootmem+0xf2/0x24d [ 0.000000] [] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [] ? dmar_table_detect+0x60/0x60 [ 0.000000] [] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [] mem_init+0x13/0x74 [ 0.000000] [] start_kernel+0x31d/0x6e9 [ 0.000000] [] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [] x86_64_start_kernel+0x140/0x163 [ 0.000000] Rebooting in 86400 seconds.. [ 0.000000] ACPI MEMORY or I/O RESET_REG. [ 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: 0x0000000001424c0d 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 4.4.109-g8cbe01c (syzkaller@ci) (gcc version 7.1.1 20170620 (GCC) ) #10 SMP PREEMPT Tue Jan 2 20:37:39 UTC 2018 [ 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 1252688660 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 4.4.109-g8cbe01c #10 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 6fda3d3080e18bb0 ffffffff84207ce8 ffffffff81d0289d [ 0.000000] ffffea0000047ce0 ffffea0000047ce0 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d20 ffffffff814fad79 ffffea0000047ce0 [ 0.000000] Call Trace: [ 0.000000] [] dump_stack+0xc1/0x124 [ 0.000000] [] print_address_description+0x189/0x260 [ 0.000000] [] kasan_report+0x285/0x370 [ 0.000000] [] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] free_all_bootmem+0xf2/0x24d [ 0.000000] [] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [] ? dmar_table_detect+0x60/0x60 [ 0.000000] [] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [] mem_init+0x13/0x74 [ 0.000000] [] start_kernel+0x31d/0x6e9 [ 0.000000] [] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [] x86_64_start_kernel+0x140/0x163 [ 0.000000] [ 0.000000] [ 0.000000] Memory state around the buggy address: [ 0.000000] ffffea0000047b80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ffffea0000047c00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] >ffffea0000047c80: 00 00 00 00 00 00 f1 f1 f1 f1 00 00 f2 f2 00 00 [ 0.000000] ^ [ 0.000000] ffffea0000047d00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ffffea0000047d80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ================================================================== [ 0.000000] Disabling lock debugging due to kernel taint [ 0.000000] Kernel panic - not syncing: panic_on_warn set ... [ 0.000000] [ 0.000000] CPU: 0 PID: 0 Comm: swapper Tainted: G B 4.4.109-g8cbe01c #10 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 6fda3d3080e18bb0 ffffffff84207c40 ffffffff81d0289d [ 0.000000] ffffffff83fb3615 ffffffff84207d18 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d08 ffffffff814176ca 0000000041b58ab3 [ 0.000000] Call Trace: [ 0.000000] [] dump_stack+0xc1/0x124 [ 0.000000] [] panic+0x1aa/0x388 [ 0.000000] [] ? percpu_up_read.constprop.45+0xe1/0xe1 [ 0.000000] [] kasan_end_report+0x50/0x50 [ 0.000000] [] kasan_report+0x15c/0x370 [ 0.000000] [] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] free_all_bootmem+0xf2/0x24d [ 0.000000] [] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [] ? dmar_table_detect+0x60/0x60 [ 0.000000] [] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [] mem_init+0x13/0x74 [ 0.000000] [] start_kernel+0x31d/0x6e9 [ 0.000000] [] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [] x86_64_start_kernel+0x140/0x163 [ 0.000000] Rebooting in 86400 seconds.. [ 0.000000] ACPI MEMORY or I/O RESET_REG. SeaBIOS (version 1.8.2-20171012_061934-google) Total RAM Size = 0x00000001e0000000 = 7680 MiB CPUs found: 2 Max CPUs supported: 2 found virtio-scsi at 0:3 virtio-scsi vendor='Google' product='PersistentDisk' rev='1' type=0 removable=0 virtio-scsi blksize=512 sectors=4194304 = 2048 MiB drive 0x000f3050: PCHS=0/0/0 translation=lba LCHS=520/128/63 s=4194304 Booting from Hard Disk 0... early console in decompress_kernel input_data: 0x00000000039be26e input_len: 0x0000000001424c0d 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 4.4.109-g8cbe01c (syzkaller@ci) (gcc version 7.1.1 20170620 (GCC) ) #10 SMP PREEMPT Tue Jan 2 20:37:39 UTC 2018 [ 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 1257917912 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 4.4.109-g8cbe01c #10 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 7078e358818031d8 ffffffff84207ce8 ffffffff81d0289d [ 0.000000] ffffea0000047ce0 ffffea0000047ce0 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d20 ffffffff814fad79 ffffea0000047ce0 [ 0.000000] Call Trace: [ 0.000000] [] dump_stack+0xc1/0x124 [ 0.000000] [] print_address_description+0x189/0x260 [ 0.000000] [] kasan_report+0x285/0x370 [ 0.000000] [] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] free_all_bootmem+0xf2/0x24d [ 0.000000] [] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [] ? dmar_table_detect+0x60/0x60 [ 0.000000] [] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [] mem_init+0x13/0x74 [ 0.000000] [] start_kernel+0x31d/0x6e9 [ 0.000000] [] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [] x86_64_start_kernel+0x140/0x163 [ 0.000000] [ 0.000000] [ 0.000000] Memory state around the buggy address: [ 0.000000] ffffea0000047b80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ffffea0000047c00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] >ffffea0000047c80: 00 00 00 00 00 00 f1 f1 f1 f1 00 00 f2 f2 00 00 [ 0.000000] ^ [ 0.000000] ffffea0000047d00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ffffea0000047d80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ================================================================== [ 0.000000] Disabling lock debugging due to kernel taint [ 0.000000] Kernel panic - not syncing: panic_on_warn set ... [ 0.000000] [ 0.000000] CPU: 0 PID: 0 Comm: swapper Tainted: G B 4.4.109-g8cbe01c #10 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 7078e358818031d8 ffffffff84207c40 ffffffff81d0289d [ 0.000000] ffffffff83fb3615 ffffffff84207d18 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d08 ffffffff814176ca 0000000041b58ab3 [ 0.000000] Call Trace: [ 0.000000] [] dump_stack+0xc1/0x124 [ 0.000000] [] panic+0x1aa/0x388 [ 0.000000] [] ? percpu_up_read.constprop.45+0xe1/0xe1 [ 0.000000] [] kasan_end_report+0x50/0x50 [ 0.000000] [] kasan_report+0x15c/0x370 [ 0.000000] [] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] free_all_bootmem+0xf2/0x24d [ 0.000000] [] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [] ? dmar_table_detect+0x60/0x60 [ 0.000000] [] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [] mem_init+0x13/0x74 [ 0.000000] [] start_kernel+0x31d/0x6e9 [ 0.000000] [] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [] x86_64_start_kernel+0x140/0x163 [ 0.000000] Rebooting in 86400 seconds.. [ 0.000000] ACPI MEMORY or I/O RESET_REG. SeaBIOS (version 1.8.2-20171012_061934-google) Total RAM Size = 0x00000001e0000000 = 7680 MiB CPUs found: 2 Max CPUs supported: 2 found virtio-scsi at 0:3 virtio-scsi vendor='Google' product='PersistentDisk' rev='1' type=0 removable=0 virtio-scsi blksize=512 sectors=4194304 = 2048 MiB drive 0x000f3050: PCHS=0/0/0 translation=lba LCHS=520/128/63 s=4194304 Booting from Hard Disk 0... early console in decompress_kernel input_data: 0x00000000039be26e input_len: 0x0000000001424c0d 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 4.4.109-g8cbe01c (syzkaller@ci) (gcc version 7.1.1 20170620 (GCC) ) #10 SMP PREEMPT Tue Jan 2 20:37:39 UTC 2018 [ 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 1246281062 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 4.4.109-g8cbe01c #10 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 6f100dde80175c5e ffffffff84207ce8 ffffffff81d0289d [ 0.000000] ffffea0000047ce0 ffffea0000047ce0 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d20 ffffffff814fad79 ffffea0000047ce0 [ 0.000000] Call Trace: [ 0.000000] [] dump_stack+0xc1/0x124 [ 0.000000] [] print_address_description+0x189/0x260 [ 0.000000] [] kasan_report+0x285/0x370 [ 0.000000] [] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] free_all_bootmem+0xf2/0x24d [ 0.000000] [] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [] ? dmar_table_detect+0x60/0x60 [ 0.000000] [] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [] mem_init+0x13/0x74 [ 0.000000] [] start_kernel+0x31d/0x6e9 [ 0.000000] [] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [] x86_64_start_kernel+0x140/0x163 [ 0.000000] [ 0.000000] [ 0.000000] Memory state around the buggy address: [ 0.000000] ffffea0000047b80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ffffea0000047c00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] >ffffea0000047c80: 00 00 00 00 00 00 f1 f1 f1 f1 00 00 f2 f2 00 00 [ 0.000000] ^ [ 0.000000] ffffea0000047d00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ffffea0000047d80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ================================================================== [ 0.000000] Disabling lock debugging due to kernel taint [ 0.000000] Kernel panic - not syncing: panic_on_warn set ... [ 0.000000] [ 0.000000] CPU: 0 PID: 0 Comm: swapper Tainted: G B 4.4.109-g8cbe01c #10 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 6f100dde80175c5e ffffffff84207c40 ffffffff81d0289d [ 0.000000] ffffffff83fb3615 ffffffff84207d18 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d08 ffffffff814176ca 0000000041b58ab3 [ 0.000000] Call Trace: [ 0.000000] [] dump_stack+0xc1/0x124 [ 0.000000] [] panic+0x1aa/0x388 [ 0.000000] [] ? percpu_up_read.constprop.45+0xe1/0xe1 [ 0.000000] [] kasan_end_report+0x50/0x50 [ 0.000000] [] kasan_report+0x15c/0x370 [ 0.000000] [] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] free_all_bootmem+0xf2/0x24d [ 0.000000] [] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [] ? dmar_table_detect+0x60/0x60 [ 0.000000] [] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [] mem_init+0x13/0x74 [ 0.000000] [] start_kernel+0x31d/0x6e9 [ 0.000000] [] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [] x86_64_start_kernel+0x140/0x163 [ 0.000000] Rebooting in 86400 seconds.. [ 0.000000] ACPI MEMORY or I/O RESET_REG. SeaBIOS (version 1.8.2-20171012_061934-google) Total RAM Size = 0x00000001e0000000 = 7680 MiB CPUs found: 2 Max CPUs supported: 2 found virtio-scsi at 0:3 virtio-scsi vendor='Google' product='PersistentDisk' rev='1' type=0 removable=0 virtio-scsi blksize=512 sectors=4194304 = 2048 MiB drive 0x000f3050: PCHS=0/0/0 translation=lba LCHS=520/128/63 s=4194304 Booting from Hard Disk 0... early console in decompress_kernel input_data: 0x00000000039be26e input_len: 0x0000000001424c0d 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 4.4.109-g8cbe01c (syzkaller@ci) (gcc version 7.1.1 20170620 (GCC) ) #10 SMP PREEMPT Tue Jan 2 20:37:39 UTC 2018 [ 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 1261777854 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 4.4.109-g8cbe01c #10 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 7108a506820ff386 ffffffff84207ce8 ffffffff81d0289d [ 0.000000] ffffea0000047ce0 ffffea0000047ce0 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d20 ffffffff814fad79 ffffea0000047ce0 [ 0.000000] Call Trace: [ 0.000000] [] dump_stack+0xc1/0x124 [ 0.000000] [] print_address_description+0x189/0x260 [ 0.000000] [] kasan_report+0x285/0x370 [ 0.000000] [] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] free_all_bootmem+0xf2/0x24d [ 0.000000] [] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [] ? dmar_table_detect+0x60/0x60 [ 0.000000] [] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [] mem_init+0x13/0x74 [ 0.000000] [] start_kernel+0x31d/0x6e9 [ 0.000000] [] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [] x86_64_start_kernel+0x140/0x163 [ 0.000000] [ 0.000000] [ 0.000000] Memory state around the buggy address: [ 0.000000] ffffea0000047b80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ffffea0000047c00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] >ffffea0000047c80: 00 00 00 00 00 00 f1 f1 f1 f1 00 00 f2 f2 00 00 [ 0.000000] ^ [ 0.000000] ffffea0000047d00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ffffea0000047d80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ================================================================== [ 0.000000] Disabling lock debugging due to kernel taint [ 0.000000] Kernel panic - not syncing: panic_on_warn set ... [ 0.000000] [ 0.000000] CPU: 0 PID: 0 Comm: swapper Tainted: G B 4.4.109-g8cbe01c #10 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 7108a506820ff386 ffffffff84207c40 ffffffff81d0289d [ 0.000000] ffffffff83fb3615 ffffffff84207d18 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d08 ffffffff814176ca 0000000041b58ab3 [ 0.000000] Call Trace: [ 0.000000] [] dump_stack+0xc1/0x124 [ 0.000000] [] panic+0x1aa/0x388 [ 0.000000] [] ? percpu_up_read.constprop.45+0xe1/0xe1 [ 0.000000] [] kasan_end_report+0x50/0x50 [ 0.000000] [] kasan_report+0x15c/0x370 [ 0.000000] [] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] free_all_bootmem+0xf2/0x24d [ 0.000000] [] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [] ? dmar_table_detect+0x60/0x60 [ 0.000000] [] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [] mem_init+0x13/0x74 [ 0.000000] [] start_kernel+0x31d/0x6e9 [ 0.000000] [] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [] x86_64_start_kernel+0x140/0x163 [ 0.000000] Rebooting in 86400 seconds.. [ 0.000000] ACPI MEMORY or I/O RESET_REG. SeaBIOS (version 1.8.2-20171012_061934-google) Total RAM Size = 0x00000001e0000000 = 7680 MiB CPUs found: 2 Max CPUs supported: 2 found virtio-scsi at 0:3 virtio-scsi vendor='Google' product='PersistentDisk' rev='1' type=0 removable=0 virtio-scsi blksize=512 sectors=4194304 = 2048 MiB drive 0x000f3050: PCHS=0/0/0 translation=lba LCHS=520/128/63 s=4194304 Booting from Hard Disk 0... early console in decompress_kernel input_data: 0x00000000039be26e input_len: 0x0000000001424c0d 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 4.4.109-g8cbe01c (syzkaller@ci) (gcc version 7.1.1 20170620 (GCC) ) #10 SMP PREEMPT Tue Jan 2 20:37:39 UTC 2018 [ 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 1259177850 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 4.4.109-g8cbe01c #10 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 70cc0dc081d35c40 ffffffff84207ce8 ffffffff81d0289d [ 0.000000] ffffea0000047ce0 ffffea0000047ce0 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d20 ffffffff814fad79 ffffea0000047ce0 [ 0.000000] Call Trace: [ 0.000000] [] dump_stack+0xc1/0x124 [ 0.000000] [] print_address_description+0x189/0x260 [ 0.000000] [] kasan_report+0x285/0x370 [ 0.000000] [] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] free_all_bootmem+0xf2/0x24d [ 0.000000] [] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [] ? dmar_table_detect+0x60/0x60 [ 0.000000] [] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [] mem_init+0x13/0x74 [ 0.000000] [] start_kernel+0x31d/0x6e9 [ 0.000000] [] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [] x86_64_start_kernel+0x140/0x163 [ 0.000000] [ 0.000000] [ 0.000000] Memory state around the buggy address: [ 0.000000] ffffea0000047b80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ffffea0000047c00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] >ffffea0000047c80: 00 00 00 00 00 00 f1 f1 f1 f1 00 00 f2 f2 00 00 [ 0.000000] ^ [ 0.000000] ffffea0000047d00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ffffea0000047d80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ================================================================== [ 0.000000] Disabling lock debugging due to kernel taint [ 0.000000] Kernel panic - not syncing: panic_on_warn set ... [ 0.000000] [ 0.000000] CPU: 0 PID: 0 Comm: swapper Tainted: G B 4.4.109-g8cbe01c #10 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 70cc0dc081d35c40 ffffffff84207c40 ffffffff81d0289d [ 0.000000] ffffffff83fb3615 ffffffff84207d18 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d08 ffffffff814176ca 0000000041b58ab3 [ 0.000000] Call Trace: [ 0.000000] [] dump_stack+0xc1/0x124 [ 0.000000] [] panic+0x1aa/0x388 [ 0.000000] [] ? percpu_up_read.constprop.45+0xe1/0xe1 [ 0.000000] [] kasan_end_report+0x50/0x50 [ 0.000000] [] kasan_report+0x15c/0x370 [ 0.000000] [] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] free_all_bootmem+0xf2/0x24d [ 0.000000] [] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [] ? dmar_table_detect+0x60/0x60 [ 0.000000] [] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [] mem_init+0x13/0x74 [ 0.000000] [] start_kernel+0x31d/0x6e9 [ 0.000000] [] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [] x86_64_start_kernel+0x140/0x163 [ 0.000000] Rebooting in 86400 seconds.. [ 0.000000] ACPI MEMORY or I/O RESET_REG. SeaBIOS (version 1.8.2-20171012_061934-google) Total RAM Size = 0x00000001e0000000 = 7680 MiB CPUs found: 2 Max CPUs supported: 2 found virtio-scsi at 0:3 virtio-scsi vendor='Google' product='PersistentDisk' rev='1' type=0 removable=0 virtio-scsi blksize=512 sectors=4194304 = 2048 MiB drive 0x000f3050: PCHS=0/0/0 translation=lba LCHS=520/128/63 s=4194304 Booting from Hard Disk 0... early console in decompress_kernel input_data: 0x00000000039be26e input_len: 0x0000000001424c0d 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 4.4.109-g8cbe01c (syzkaller@ci) (gcc version 7.1.1 20170620 (GCC) ) #10 SMP PREEMPT Tue Jan 2 20:37:39 UTC 2018 [ 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 1269353918 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 4.4.109-g8cbe01c #10 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 7221571b8328a59b ffffffff84207ce8 ffffffff81d0289d [ 0.000000] ffffea0000047ce0 ffffea0000047ce0 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d20 ffffffff814fad79 ffffea0000047ce0 [ 0.000000] Call Trace: [ 0.000000] [] dump_stack+0xc1/0x124 [ 0.000000] [] print_address_description+0x189/0x260 [ 0.000000] [] kasan_report+0x285/0x370 [ 0.000000] [] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] free_all_bootmem+0xf2/0x24d [ 0.000000] [] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [] ? dmar_table_detect+0x60/0x60 [ 0.000000] [] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [] mem_init+0x13/0x74 [ 0.000000] [] start_kernel+0x31d/0x6e9 [ 0.000000] [] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [] x86_64_start_kernel+0x140/0x163 [ 0.000000] [ 0.000000] [ 0.000000] Memory state around the buggy address: [ 0.000000] ffffea0000047b80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ffffea0000047c00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] >ffffea0000047c80: 00 00 00 00 00 00 f1 f1 f1 f1 00 00 f2 f2 00 00 [ 0.000000] ^ [ 0.000000] ffffea0000047d00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ffffea0000047d80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ================================================================== [ 0.000000] Disabling lock debugging due to kernel taint [ 0.000000] Kernel panic - not syncing: panic_on_warn set ... [ 0.000000] [ 0.000000] CPU: 0 PID: 0 Comm: swapper Tainted: G B 4.4.109-g8cbe01c #10 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 7221571b8328a59b ffffffff84207c40 ffffffff81d0289d [ 0.000000] ffffffff83fb3615 ffffffff84207d18 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d08 ffffffff814176ca 0000000041b58ab3 [ 0.000000] Call Trace: [ 0.000000] [] dump_stack+0xc1/0x124 [ 0.000000] [] panic+0x1aa/0x388 [ 0.000000] [] ? percpu_up_read.constprop.45+0xe1/0xe1 [ 0.000000] [] kasan_end_report+0x50/0x50 [ 0.000000] [] kasan_report+0x15c/0x370 [ 0.000000] [] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] free_all_bootmem+0xf2/0x24d [ 0.000000] [] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [] ? dmar_table_detect+0x60/0x60 [ 0.000000] [] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [] mem_init+0x13/0x74 [ 0.000000] [] start_kernel+0x31d/0x6e9 [ 0.000000] [] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [] x86_64_start_kernel+0x140/0x163 [ 0.000000] Rebooting in 86400 seconds.. [ 0.000000] ACPI MEMORY or I/O RESET_REG. SeaBIOS (version 1.8.2-20171012_061934-google) Total RAM Size = 0x00000001e0000000 = 7680 MiB CPUs found: 2 Max CPUs supported: 2 found virtio-scsi at 0:3 virtio-scsi vendor='Google' product='PersistentDisk' rev='1' type=0 removable=0 virtio-scsi blksize=512 sectors=4194304 = 2048 MiB drive 0x000f3050: PCHS=0/0/0 translation=lba LCHS=520/128/63 s=4194304 Booting from Hard Disk 0... early console in decompress_kernel input_data: 0x00000000039be26e input_len: 0x0000000001424c0d 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 4.4.109-g8cbe01c (syzkaller@ci) (gcc version 7.1.1 20170620 (GCC) ) #10 SMP PREEMPT Tue Jan 2 20:37:39 UTC 2018 [ 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 1245364707 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 4.4.109-g8cbe01c #10 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 6eee42467ff590c6 ffffffff84207ce8 ffffffff81d0289d [ 0.000000] ffffea0000047ce0 ffffea0000047ce0 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d20 ffffffff814fad79 ffffea0000047ce0 [ 0.000000] Call Trace: [ 0.000000] [] dump_stack+0xc1/0x124 [ 0.000000] [] print_address_description+0x189/0x260 [ 0.000000] [] kasan_report+0x285/0x370 [ 0.000000] [] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] free_all_bootmem+0xf2/0x24d [ 0.000000] [] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [] ? dmar_table_detect+0x60/0x60 [ 0.000000] [] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [] mem_init+0x13/0x74 [ 0.000000] [] start_kernel+0x31d/0x6e9 [ 0.000000] [] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [] x86_64_start_kernel+0x140/0x163 [ 0.000000] [ 0.000000] [ 0.000000] Memory state around the buggy address: [ 0.000000] ffffea0000047b80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ffffea0000047c00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] >ffffea0000047c80: 00 00 00 00 00 00 f1 f1 f1 f1 00 00 f2 f2 00 00 [ 0.000000] ^ [ 0.000000] ffffea0000047d00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ffffea0000047d80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ================================================================== [ 0.000000] Disabling lock debugging due to kernel taint [ 0.000000] Kernel panic - not syncing: panic_on_warn set ... [ 0.000000] [ 0.000000] CPU: 0 PID: 0 Comm: swapper Tainted: G B 4.4.109-g8cbe01c #10 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 6eee42467ff590c6 ffffffff84207c40 ffffffff81d0289d [ 0.000000] ffffffff83fb3615 ffffffff84207d18 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d08 ffffffff814176ca 0000000041b58ab3 [ 0.000000] Call Trace: [ 0.000000] [] dump_stack+0xc1/0x124 [ 0.000000] [] panic+0x1aa/0x388 [ 0.000000] [] ? percpu_up_read.constprop.45+0xe1/0xe1 [ 0.000000] [] kasan_end_report+0x50/0x50 [ 0.000000] [] kasan_report+0x15c/0x370 [ 0.000000] [] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] free_all_bootmem+0xf2/0x24d [ 0.000000] [] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [] ? dmar_table_detect+0x60/0x60 [ 0.000000] [] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [] mem_init+0x13/0x74 [ 0.000000] [] start_kernel+0x31d/0x6e9 [ 0.000000] [] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [] x86_64_start_kernel+0x140/0x163 [ 0.000000] Rebooting in 86400 seconds.. [ 0.000000] ACPI MEMORY or I/O RESET_REG. SeaBIOS (version 1.8.2-20171012_061934-google) Total RAM Size = 0x00000001e0000000 = 7680 MiB CPUs found: 2 Max CPUs supported: 2 found virtio-scsi at 0:3 virtio-scsi vendor='Google' product='PersistentDisk' rev='1' type=0 removable=0 virtio-scsi blksize=512 sectors=4194304 = 2048 MiB drive 0x000f3050: PCHS=0/0/0 translation=lba LCHS=520/128/63 s=4194304 Booting from Hard Disk 0... early console in decompress_kernel input_data: 0x00000000039be26e input_len: 0x0000000001424c0d 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 4.4.109-g8cbe01c (syzkaller@ci) (gcc version 7.1.1 20170620 (GCC) ) #10 SMP PREEMPT Tue Jan 2 20:37:39 UTC 2018 [ 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 1241693896 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 4.4.109-g8cbe01c #10 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 6e1d85d07f24d450 ffffffff84207ce8 ffffffff81d0289d [ 0.000000] ffffea0000047ce0 ffffea0000047ce0 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d20 ffffffff814fad79 ffffea0000047ce0 [ 0.000000] Call Trace: [ 0.000000] [] dump_stack+0xc1/0x124 [ 0.000000] [] print_address_description+0x189/0x260 [ 0.000000] [] kasan_report+0x285/0x370 [ 0.000000] [] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] free_all_bootmem+0xf2/0x24d [ 0.000000] [] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [] ? dmar_table_detect+0x60/0x60 [ 0.000000] [] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [] mem_init+0x13/0x74 [ 0.000000] [] start_kernel+0x31d/0x6e9 [ 0.000000] [] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [] x86_64_start_kernel+0x140/0x163 [ 0.000000] [ 0.000000] [ 0.000000] Memory state around the buggy address: [ 0.000000] ffffea0000047b80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ffffea0000047c00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] >ffffea0000047c80: 00 00 00 00 00 00 f1 f1 f1 f1 00 00 f2 f2 00 00 [ 0.000000] ^ [ 0.000000] ffffea0000047d00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ffffea0000047d80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ================================================================== [ 0.000000] Disabling lock debugging due to kernel taint [ 0.000000] Kernel panic - not syncing: panic_on_warn set ... [ 0.000000] [ 0.000000] CPU: 0 PID: 0 Comm: swapper Tainted: G B 4.4.109-g8cbe01c #10 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 6e1d85d07f24d450 ffffffff84207c40 ffffffff81d0289d [ 0.000000] ffffffff83fb3615 ffffffff84207d18 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d08 ffffffff814176ca 0000000041b58ab3 [ 0.000000] Call Trace: [ 0.000000] [] dump_stack+0xc1/0x124 [ 0.000000] [] panic+0x1aa/0x388 [ 0.000000] [] ? percpu_up_read.constprop.45+0xe1/0xe1 [ 0.000000] [] kasan_end_report+0x50/0x50 [ 0.000000] [] kasan_report+0x15c/0x370 [ 0.000000] [] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] free_all_bootmem+0xf2/0x24d [ 0.000000] [] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [] ? dmar_table_detect+0x60/0x60 [ 0.000000] [] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [] mem_init+0x13/0x74 [ 0.000000] [] start_kernel+0x31d/0x6e9 [ 0.000000] [] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [] x86_64_start_kernel+0x140/0x163 [ 0.000000] Rebooting in 86400 seconds.. [ 0.000000] ACPI MEMORY or I/O RESET_REG. SeaBIOS (version 1.8.2-20171012_061934-google) Total RAM Size = 0x00000001e0000000 = 7680 MiB CPUs found: 2 Max CPUs supported: 2 found virtio-scsi at 0:3 virtio-scsi vendor='Google' product='PersistentDisk' rev='1' type=0 removable=0 virtio-scsi blksize=512 sectors=4194304 = 2048 MiB drive 0x000f3050: PCHS=0/0/0 translation=lba LCHS=520/128/63 s=4194304 Booting from Hard Disk 0... early console in decompress_kernel input_data: 0x00000000039be26e input_len: 0x0000000001424c0d 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 4.4.109-g8cbe01c (syzkaller@ci) (gcc version 7.1.1 20170620 (GCC) ) #10 SMP PREEMPT Tue Jan 2 20:37:39 UTC 2018 [ 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 1331353058 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 4.4.109-g8cbe01c #10 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 7a863eef8b8d8d6f ffffffff84207ce8 ffffffff81d0289d [ 0.000000] ffffea0000047ce0 ffffea0000047ce0 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d20 ffffffff814fad79 ffffea0000047ce0 [ 0.000000] Call Trace: [ 0.000000] [] dump_stack+0xc1/0x124 [ 0.000000] [] print_address_description+0x189/0x260 [ 0.000000] [] kasan_report+0x285/0x370 [ 0.000000] [] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] free_all_bootmem+0xf2/0x24d [ 0.000000] [] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [] ? dmar_table_detect+0x60/0x60 [ 0.000000] [] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [] mem_init+0x13/0x74 [ 0.000000] [] start_kernel+0x31d/0x6e9 [ 0.000000] [] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [] x86_64_start_kernel+0x140/0x163 [ 0.000000] [ 0.000000] [ 0.000000] Memory state around the buggy address: [ 0.000000] ffffea0000047b80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ffffea0000047c00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] >ffffea0000047c80: 00 00 00 00 00 00 f1 f1 f1 f1 00 00 f2 f2 00 00 [ 0.000000] ^ [ 0.000000] ffffea0000047d00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ffffea0000047d80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ================================================================== [ 0.000000] Disabling lock debugging due to kernel taint [ 0.000000] Kernel panic - not syncing: panic_on_warn set ... [ 0.000000] [ 0.000000] CPU: 0 PID: 0 Comm: swapper Tainted: G B 4.4.109-g8cbe01c #10 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 7a863eef8b8d8d6f ffffffff84207c40 ffffffff81d0289d [ 0.000000] ffffffff83fb3615 ffffffff84207d18 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d08 ffffffff814176ca 0000000041b58ab3 [ 0.000000] Call Trace: [ 0.000000] [] dump_stack+0xc1/0x124 [ 0.000000] [] panic+0x1aa/0x388 [ 0.000000] [] ? percpu_up_read.constprop.45+0xe1/0xe1 [ 0.000000] [] kasan_end_report+0x50/0x50 [ 0.000000] [] kasan_report+0x15c/0x370 [ 0.000000] [] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] free_all_bootmem+0xf2/0x24d [ 0.000000] [] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [] ? dmar_table_detect+0x60/0x60 [ 0.000000] [] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [] mem_init+0x13/0x74 [ 0.000000] [] start_kernel+0x31d/0x6e9 [ 0.000000] [] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [] x86_64_start_kernel+0x140/0x163 [ 0.000000] Rebooting in 86400 seconds.. [ 0.000000] ACPI MEMORY or I/O RESET_REG. SeaBIOS (version 1.8.2-20171012_061934-google) Total RAM Size = 0x00000001e0000000 = 7680 MiB CPUs found: 2 Max CPUs supported: 2 found virtio-scsi at 0:3 virtio-scsi vendor='Google' product='PersistentDisk' rev='1' type=0 removable=0 virtio-scsi blksize=512 sectors=4194304 = 2048 MiB drive 0x000f3050: PCHS=0/0/0 translation=lba LCHS=520/128/63 s=4194304 Booting from Hard Disk 0... early console in decompress_kernel input_data: 0x00000000039be26e input_len: 0x0000000001424c0d 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 4.4.109-g8cbe01c (syzkaller@ci) (gcc version 7.1.1 20170620 (GCC) ) #10 SMP PREEMPT Tue Jan 2 20:37:39 UTC 2018 [ 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 1255583785 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 4.4.109-g8cbe01c #10 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 7064dcb0816c2b30 ffffffff84207ce8 ffffffff81d0289d [ 0.000000] ffffea0000047ce0 ffffea0000047ce0 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d20 ffffffff814fad79 ffffea0000047ce0 [ 0.000000] Call Trace: [ 0.000000] [] dump_stack+0xc1/0x124 [ 0.000000] [] print_address_description+0x189/0x260 [ 0.000000] [] kasan_report+0x285/0x370 [ 0.000000] [] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] free_all_bootmem+0xf2/0x24d [ 0.000000] [] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [] ? dmar_table_detect+0x60/0x60 [ 0.000000] [] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [] mem_init+0x13/0x74 [ 0.000000] [] start_kernel+0x31d/0x6e9 [ 0.000000] [] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [] x86_64_start_kernel+0x140/0x163 [ 0.000000] [ 0.000000] [ 0.000000] Memory state around the buggy address: [ 0.000000] ffffea0000047b80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ffffea0000047c00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] >ffffea0000047c80: 00 00 00 00 00 00 f1 f1 f1 f1 00 00 f2 f2 00 00 [ 0.000000] ^ [ 0.000000] ffffea0000047d00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ffffea0000047d80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ================================================================== [ 0.000000] Disabling lock debugging due to kernel taint [ 0.000000] Kernel panic - not syncing: panic_on_warn set ... [ 0.000000] [ 0.000000] CPU: 0 PID: 0 Comm: swapper Tainted: G B 4.4.109-g8cbe01c #10 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 7064dcb0816c2b30 ffffffff84207c40 ffffffff81d0289d [ 0.000000] ffffffff83fb3615 ffffffff84207d18 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d08 ffffffff814176ca 0000000041b58ab3 [ 0.000000] Call Trace: [ 0.000000] [] dump_stack+0xc1/0x124 [ 0.000000] [] panic+0x1aa/0x388 [ 0.000000] [] ? percpu_up_read.constprop.45+0xe1/0xe1 [ 0.000000] [] kasan_end_report+0x50/0x50 [ 0.000000] [] kasan_report+0x15c/0x370 [ 0.000000] [] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] free_all_bootmem+0xf2/0x24d [ 0.000000] [] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [] ? dmar_table_detect+0x60/0x60 [ 0.000000] [] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [] mem_init+0x13/0x74 [ 0.000000] [] start_kernel+0x31d/0x6e9 [ 0.000000] [] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [] x86_64_start_kernel+0x140/0x163 [ 0.000000] Rebooting in 86400 seconds.. [ 0.000000] ACPI MEMORY or I/O RESET_REG. SeaBIOS (version 1.8.2-20171012_061934-google) Total RAM Size = 0x00000001e0000000 = 7680 MiB CPUs found: 2 Max CPUs supported: 2 found virtio-scsi at 0:3 virtio-scsi vendor='Google' product='PersistentDisk' rev='1' type=0 removable=0 virtio-scsi blksize=512 sectors=4194304 = 2048 MiB drive 0x000f3050: PCHS=0/0/0 translation=lba LCHS=520/128/63 s=4194304 Booting from Hard Disk 0... early console in decompress_kernel input_data: 0x00000000039be26e input_len: 0x0000000001424c0d 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 4.4.109-g8cbe01c (syzkaller@ci) (gcc version 7.1.1 20170620 (GCC) ) #10 SMP PREEMPT Tue Jan 2 20:37:39 UTC 2018 [ 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 1285646235 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 4.4.109-g8cbe01c #10 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 7462a36b8569f1eb ffffffff84207ce8 ffffffff81d0289d [ 0.000000] ffffea0000047ce0 ffffea0000047ce0 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d20 ffffffff814fad79 ffffea0000047ce0 [ 0.000000] Call Trace: [ 0.000000] [] dump_stack+0xc1/0x124 [ 0.000000] [] print_address_description+0x189/0x260 [ 0.000000] [] kasan_report+0x285/0x370 [ 0.000000] [] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] free_all_bootmem+0xf2/0x24d [ 0.000000] [] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [] ? dmar_table_detect+0x60/0x60 [ 0.000000] [] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [] mem_init+0x13/0x74 [ 0.000000] [] start_kernel+0x31d/0x6e9 [ 0.000000] [] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [] x86_64_start_kernel+0x140/0x163 [ 0.000000] [ 0.000000] [ 0.000000] Memory state around the buggy address: [ 0.000000] ffffea0000047b80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ffffea0000047c00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] >ffffea0000047c80: 00 00 00 00 00 00 f1 f1 f1 f1 00 00 f2 f2 00 00 [ 0.000000] ^ [ 0.000000] ffffea0000047d00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ffffea0000047d80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ================================================================== [ 0.000000] Disabling lock debugging due to kernel taint [ 0.000000] Kernel panic - not syncing: panic_on_warn set ... [ 0.000000] [ 0.000000] CPU: 0 PID: 0 Comm: swapper Tainted: G B 4.4.109-g8cbe01c #10 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 7462a36b8569f1eb ffffffff84207c40 ffffffff81d0289d [ 0.000000] ffffffff83fb3615 ffffffff84207d18 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d08 ffffffff814176ca 0000000041b58ab3 [ 0.000000] Call Trace: [ 0.000000] [] dump_stack+0xc1/0x124 [ 0.000000] [] panic+0x1aa/0x388 [ 0.000000] [] ? percpu_up_read.constprop.45+0xe1/0xe1 [ 0.000000] [] kasan_end_report+0x50/0x50 [ 0.000000] [] kasan_report+0x15c/0x370 [ 0.000000] [] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] free_all_bootmem+0xf2/0x24d [ 0.000000] [] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [] ? dmar_table_detect+0x60/0x60 [ 0.000000] [] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [] mem_init+0x13/0x74 [ 0.000000] [] start_kernel+0x31d/0x6e9 [ 0.000000] [] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [] x86_64_start_kernel+0x140/0x163 [ 0.000000] Rebooting in 86400 seconds.. [ 0.000000] ACPI MEMORY or I/O RESET_REG. SeaBIOS (version 1.8.2-20171012_061934-google) Total RAM Size = 0x00000001e0000000 = 7680 MiB CPUs found: 2 Max CPUs supported: 2 found virtio-scsi at 0:3 virtio-scsi vendor='Google' product='PersistentDisk' rev='1' type=0 removable=0 virtio-scsi blksize=512 sectors=4194304 = 2048 MiB drive 0x000f3050: PCHS=0/0/0 translation=lba LCHS=520/128/63 s=4194304 Booting from Hard Disk 0... early console in decompress_kernel input_data: 0x00000000039be26e input_len: 0x0000000001424c0d 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 4.4.109-g8cbe01c (syzkaller@ci) (gcc version 7.1.1 20170620 (GCC) ) #10 SMP PREEMPT Tue Jan 2 20:37:39 UTC 2018 [ 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 1268606007 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 4.4.109-g8cbe01c #10 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 72337f31833acdb1 ffffffff84207ce8 ffffffff81d0289d [ 0.000000] ffffea0000047ce0 ffffea0000047ce0 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d20 ffffffff814fad79 ffffea0000047ce0 [ 0.000000] Call Trace: [ 0.000000] [] dump_stack+0xc1/0x124 [ 0.000000] [] print_address_description+0x189/0x260 [ 0.000000] [] kasan_report+0x285/0x370 [ 0.000000] [] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] free_all_bootmem+0xf2/0x24d [ 0.000000] [] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [] ? dmar_table_detect+0x60/0x60 [ 0.000000] [] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [] mem_init+0x13/0x74 [ 0.000000] [] start_kernel+0x31d/0x6e9 [ 0.000000] [] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [] x86_64_start_kernel+0x140/0x163 [ 0.000000] [ 0.000000] [ 0.000000] Memory state around the buggy address: [ 0.000000] ffffea0000047b80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ffffea0000047c00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] >ffffea0000047c80: 00 00 00 00 00 00 f1 f1 f1 f1 00 00 f2 f2 00 00 [ 0.000000] ^ [ 0.000000] ffffea0000047d00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ffffea0000047d80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ================================================================== [ 0.000000] Disabling lock debugging due to kernel taint [ 0.000000] Kernel panic - not syncing: panic_on_warn set ... [ 0.000000] [ 0.000000] CPU: 0 PID: 0 Comm: swapper Tainted: G B 4.4.109-g8cbe01c #10 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 72337f31833acdb1 ffffffff84207c40 ffffffff81d0289d [ 0.000000] ffffffff83fb3615 ffffffff84207d18 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d08 ffffffff814176ca 0000000041b58ab3 [ 0.000000] Call Trace: [ 0.000000] [] dump_stack+0xc1/0x124 [ 0.000000] [] panic+0x1aa/0x388 [ 0.000000] [] ? percpu_up_read.constprop.45+0xe1/0xe1 [ 0.000000] [] kasan_end_report+0x50/0x50 [ 0.000000] [] kasan_report+0x15c/0x370 [ 0.000000] [] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] free_all_bootmem+0xf2/0x24d [ 0.000000] [] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [] ? dmar_table_detect+0x60/0x60 [ 0.000000] [] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [] mem_init+0x13/0x74 [ 0.000000] [] start_kernel+0x31d/0x6e9 [ 0.000000] [] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [] x86_64_start_kernel+0x140/0x163 [ 0.000000] Rebooting in 86400 seconds.. [ 0.000000] ACPI MEMORY or I/O RESET_REG. SeaBIOS (version 1.8.2-20171012_061934-google) Total RAM Size = 0x00000001e0000000 = 7680 MiB CPUs found: 2 Max CPUs supported: 2 found virtio-scsi at 0:3 virtio-scsi vendor='Google' product='PersistentDisk' rev='1' type=0 removable=0 virtio-scsi blksize=512 sectors=4194304 = 2048 MiB drive 0x000f3050: PCHS=0/0/0 translation=lba LCHS=520/128/63 s=4194304 Booting from Hard Disk 0... early console in decompress_kernel input_data: 0x00000000039be26e input_len: 0x0000000001424c0d 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 4.4.109-g8cbe01c (syzkaller@ci) (gcc version 7.1.1 20170620 (GCC) ) #10 SMP PREEMPT Tue Jan 2 20:37:39 UTC 2018 [ 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 1330195800 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 4.4.109-g8cbe01c #10 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 7a4b6d128b52bb92 ffffffff84207ce8 ffffffff81d0289d [ 0.000000] ffffea0000047ce0 ffffea0000047ce0 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d20 ffffffff814fad79 ffffea0000047ce0 [ 0.000000] Call Trace: [ 0.000000] [] dump_stack+0xc1/0x124 [ 0.000000] [] print_address_description+0x189/0x260 [ 0.000000] [] kasan_report+0x285/0x370 [ 0.000000] [] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] free_all_bootmem+0xf2/0x24d [ 0.000000] [] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [] ? dmar_table_detect+0x60/0x60 [ 0.000000] [] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [] mem_init+0x13/0x74 [ 0.000000] [] start_kernel+0x31d/0x6e9 [ 0.000000] [] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [] x86_64_start_kernel+0x140/0x163 [ 0.000000] [ 0.000000] [ 0.000000] Memory state around the buggy address: [ 0.000000] ffffea0000047b80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ffffea0000047c00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] >ffffea0000047c80: 00 00 00 00 00 00 f1 f1 f1 f1 00 00 f2 f2 00 00 [ 0.000000] ^ [ 0.000000] ffffea0000047d00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ffffea0000047d80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ================================================================== [ 0.000000] Disabling lock debugging due to kernel taint [ 0.000000] Kernel panic - not syncing: panic_on_warn set ... [ 0.000000] [ 0.000000] CPU: 0 PID: 0 Comm: swapper Tainted: G B 4.4.109-g8cbe01c #10 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 7a4b6d128b52bb92 ffffffff84207c40 ffffffff81d0289d [ 0.000000] ffffffff83fb3615 ffffffff84207d18 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d08 ffffffff814176ca 0000000041b58ab3 [ 0.000000] Call Trace: [ 0.000000] [] dump_stack+0xc1/0x124 [ 0.000000] [] panic+0x1aa/0x388 [ 0.000000] [] ? percpu_up_read.constprop.45+0xe1/0xe1 [ 0.000000] [] kasan_end_report+0x50/0x50 [ 0.000000] [] kasan_report+0x15c/0x370 [ 0.000000] [] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] free_all_bootmem+0xf2/0x24d [ 0.000000] [] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [] ? dmar_table_detect+0x60/0x60 [ 0.000000] [] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [] mem_init+0x13/0x74 [ 0.000000] [] start_kernel+0x31d/0x6e9 [ 0.000000] [] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [] x86_64_start_kernel+0x140/0x163 [ 0.000000] Rebooting in 86400 seconds.. [ 0.000000] ACPI MEMORY or I/O RESET_REG. [ 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: 0x0000000001424c0d 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 4.4.109-g8cbe01c (syzkaller@ci) (gcc version 7.1.1 20170620 (GCC) ) #10 SMP PREEMPT Tue Jan 2 20:37:39 UTC 2018 [ 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 1206379939 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 4.4.109-g8cbe01c #10 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 6998ac1a7a9ffa9a ffffffff84207ce8 ffffffff81d0289d [ 0.000000] ffffea0000047ce0 ffffea0000047ce0 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d20 ffffffff814fad79 ffffea0000047ce0 [ 0.000000] Call Trace: [ 0.000000] [] dump_stack+0xc1/0x124 [ 0.000000] [] print_address_description+0x189/0x260 [ 0.000000] [] kasan_report+0x285/0x370 [ 0.000000] [] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] free_all_bootmem+0xf2/0x24d [ 0.000000] [] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [] ? dmar_table_detect+0x60/0x60 [ 0.000000] [] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [] mem_init+0x13/0x74 [ 0.000000] [] start_kernel+0x31d/0x6e9 [ 0.000000] [] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [] x86_64_start_kernel+0x140/0x163 [ 0.000000] [ 0.000000] [ 0.000000] Memory state around the buggy address: [ 0.000000] ffffea0000047b80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ffffea0000047c00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] >ffffea0000047c80: 00 00 00 00 00 00 f1 f1 f1 f1 00 00 f2 f2 00 00 [ 0.000000] ^ [ 0.000000] ffffea0000047d00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ffffea0000047d80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ================================================================== [ 0.000000] Disabling lock debugging due to kernel taint [ 0.000000] Kernel panic - not syncing: panic_on_warn set ... [ 0.000000] [ 0.000000] CPU: 0 PID: 0 Comm: swapper Tainted: G B 4.4.109-g8cbe01c #10 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 6998ac1a7a9ffa9a ffffffff84207c40 ffffffff81d0289d [ 0.000000] ffffffff83fb3615 ffffffff84207d18 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d08 ffffffff814176ca 0000000041b58ab3 [ 0.000000] Call Trace: [ 0.000000] [] dump_stack+0xc1/0x124 [ 0.000000] [] panic+0x1aa/0x388 [ 0.000000] [] ? percpu_up_read.constprop.45+0xe1/0xe1 [ 0.000000] [] kasan_end_report+0x50/0x50 [ 0.000000] [] kasan_report+0x15c/0x370 [ 0.000000] [] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] free_all_bootmem+0xf2/0x24d [ 0.000000] [] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [] ? dmar_table_detect+0x60/0x60 [ 0.000000] [] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [] mem_init+0x13/0x74 [ 0.000000] [] start_kernel+0x31d/0x6e9 [ 0.000000] [] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [] x86_64_start_kernel+0x140/0x163 [ 0.000000] Rebooting in 86400 seconds.. [ 0.000000] ACPI MEMORY or I/O RESET_REG. SeaBIOS (version 1.8.2-20171012_061934-google) Total RAM Size = 0x00000001e0000000 = 7680 MiB CPUs found: 2 Max CPUs supported: 2 found virtio-scsi at 0:3 virtio-scsi vendor='Google' product='PersistentDisk' rev='1' type=0 removable=0 virtio-scsi blksize=512 sectors=4194304 = 2048 MiB drive 0x000f3050: PCHS=0/0/0 translation=lba LCHS=520/128/63 s=4194304 Booting from Hard Disk 0... early console in decompress_kernel input_data: 0x00000000039be26e input_len: 0x0000000001424c0d 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 4.4.109-g8cbe01c (syzkaller@ci) (gcc version 7.1.1 20170620 (GCC) ) #10 SMP PREEMPT Tue Jan 2 20:37:39 UTC 2018 [ 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 1233007274 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 4.4.109-g8cbe01c #10 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 6d1e0e537e255cd3 ffffffff84207ce8 ffffffff81d0289d [ 0.000000] ffffea0000047ce0 ffffea0000047ce0 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d20 ffffffff814fad79 ffffea0000047ce0 [ 0.000000] Call Trace: [ 0.000000] [] dump_stack+0xc1/0x124 [ 0.000000] [] print_address_description+0x189/0x260 [ 0.000000] [] kasan_report+0x285/0x370 [ 0.000000] [] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] free_all_bootmem+0xf2/0x24d [ 0.000000] [] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [] ? dmar_table_detect+0x60/0x60 [ 0.000000] [] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [] mem_init+0x13/0x74 [ 0.000000] [] start_kernel+0x31d/0x6e9 [ 0.000000] [] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [] x86_64_start_kernel+0x140/0x163 [ 0.000000] [ 0.000000] [ 0.000000] Memory state around the buggy address: [ 0.000000] ffffea0000047b80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ffffea0000047c00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] >ffffea0000047c80: 00 00 00 00 00 00 f1 f1 f1 f1 00 00 f2 f2 00 00 [ 0.000000] ^ [ 0.000000] ffffea0000047d00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ffffea0000047d80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ================================================================== [ 0.000000] Disabling lock debugging due to kernel taint [ 0.000000] Kernel panic - not syncing: panic_on_warn set ... [ 0.000000] [ 0.000000] CPU: 0 PID: 0 Comm: swapper Tainted: G B 4.4.109-g8cbe01c #10 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 6d1e0e537e255cd3 ffffffff84207c40 ffffffff81d0289d [ 0.000000] ffffffff83fb3615 ffffffff84207d18 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d08 ffffffff814176ca 0000000041b58ab3 [ 0.000000] Call Trace: [ 0.000000] [] dump_stack+0xc1/0x124 [ 0.000000] [] panic+0x1aa/0x388 [ 0.000000] [] ? percpu_up_read.constprop.45+0xe1/0xe1 [ 0.000000] [] kasan_end_report+0x50/0x50 [ 0.000000] [] kasan_report+0x15c/0x370 [ 0.000000] [] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] free_all_bootmem+0xf2/0x24d [ 0.000000] [] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [] ? dmar_table_detect+0x60/0x60 [ 0.000000] [] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [] mem_init+0x13/0x74 [ 0.000000] [] start_kernel+0x31d/0x6e9 [ 0.000000] [] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [] x86_64_start_kernel+0x140/0x163 [ 0.000000] Rebooting in 86400 seconds.. [ 0.000000] ACPI MEMORY or I/O RESET_REG. SeaBIOS (version 1.8.2-20171012_061934-google) Total RAM Size = 0x00000001e0000000 = 7680 MiB CPUs found: 2 Max CPUs supported: 2 found virtio-scsi at 0:3 virtio-scsi vendor='Google' product='PersistentDisk' rev='1' type=0 removable=0 virtio-scsi blksize=512 sectors=4194304 = 2048 MiB drive 0x000f3050: PCHS=0/0/0 translation=lba LCHS=520/128/63 s=4194304 Booting from Hard Disk 0... early console in decompress_kernel input_data: 0x00000000039be26e input_len: 0x0000000001424c0d 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 4.4.109-g8cbe01c (syzkaller@ci) (gcc version 7.1.1 20170620 (GCC) ) #10 SMP PREEMPT Tue Jan 2 20:37:39 UTC 2018 [ 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 1192285531 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 4.4.109-g8cbe01c #10 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 67c0566278c7a4e2 ffffffff84207ce8 ffffffff81d0289d [ 0.000000] ffffea0000047ce0 ffffea0000047ce0 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d20 ffffffff814fad79 ffffea0000047ce0 [ 0.000000] Call Trace: [ 0.000000] [] dump_stack+0xc1/0x124 [ 0.000000] [] print_address_description+0x189/0x260 [ 0.000000] [] kasan_report+0x285/0x370 [ 0.000000] [] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] free_all_bootmem+0xf2/0x24d [ 0.000000] [] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [] ? dmar_table_detect+0x60/0x60 [ 0.000000] [] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [] mem_init+0x13/0x74 [ 0.000000] [] start_kernel+0x31d/0x6e9 [ 0.000000] [] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [] x86_64_start_kernel+0x140/0x163 [ 0.000000] [ 0.000000] [ 0.000000] Memory state around the buggy address: [ 0.000000] ffffea0000047b80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ffffea0000047c00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] >ffffea0000047c80: 00 00 00 00 00 00 f1 f1 f1 f1 00 00 f2 f2 00 00 [ 0.000000] ^ [ 0.000000] ffffea0000047d00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ffffea0000047d80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ================================================================== [ 0.000000] Disabling lock debugging due to kernel taint [ 0.000000] Kernel panic - not syncing: panic_on_warn set ... [ 0.000000] [ 0.000000] CPU: 0 PID: 0 Comm: swapper Tainted: G B 4.4.109-g8cbe01c #10 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 67c0566278c7a4e2 ffffffff84207c40 ffffffff81d0289d [ 0.000000] ffffffff83fb3615 ffffffff84207d18 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d08 ffffffff814176ca 0000000041b58ab3 [ 0.000000] Call Trace: [ 0.000000] [] dump_stack+0xc1/0x124 [ 0.000000] [] panic+0x1aa/0x388 [ 0.000000] [] ? percpu_up_read.constprop.45+0xe1/0xe1 [ 0.000000] [] kasan_end_report+0x50/0x50 [ 0.000000] [] kasan_report+0x15c/0x370 [ 0.000000] [] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] free_all_bootmem+0xf2/0x24d [ 0.000000] [] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [] ? dmar_table_detect+0x60/0x60 [ 0.000000] [] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [] mem_init+0x13/0x74 [ 0.000000] [] start_kernel+0x31d/0x6e9 [ 0.000000] [] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [] x86_64_start_kernel+0x140/0x163 [ 0.000000] Rebooting in 86400 seconds.. [ 0.000000] ACPI MEMORY or I/O RESET_REG. SeaBIOS (version 1.8.2-20171012_061934-google) Total RAM Size = 0x00000001e0000000 = 7680 MiB CPUs found: 2 Max CPUs supported: 2 found virtio-scsi at 0:3 virtio-scsi vendor='Google' product='PersistentDisk' rev='1' type=0 removable=0 virtio-scsi blksize=512 sectors=4194304 = 2048 MiB drive 0x000f3050: PCHS=0/0/0 translation=lba LCHS=520/128/63 s=4194304 Booting from Hard Disk 0... early console in decompress_kernel input_data: 0x00000000039be26e input_len: 0x0000000001424c0d 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 4.4.109-g8cbe01c (syzkaller@ci) (gcc version 7.1.1 20170620 (GCC) ) #10 SMP PREEMPT Tue Jan 2 20:37:39 UTC 2018 [ 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 1244113479 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 4.4.109-g8cbe01c #10 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 6eabe20b7fb3308b ffffffff84207ce8 ffffffff81d0289d [ 0.000000] ffffea0000047ce0 ffffea0000047ce0 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d20 ffffffff814fad79 ffffea0000047ce0 [ 0.000000] Call Trace: [ 0.000000] [] dump_stack+0xc1/0x124 [ 0.000000] [] print_address_description+0x189/0x260 [ 0.000000] [] kasan_report+0x285/0x370 [ 0.000000] [] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] free_all_bootmem+0xf2/0x24d [ 0.000000] [] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [] ? dmar_table_detect+0x60/0x60 [ 0.000000] [] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [] mem_init+0x13/0x74 [ 0.000000] [] start_kernel+0x31d/0x6e9 [ 0.000000] [] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [] x86_64_start_kernel+0x140/0x163 [ 0.000000] [ 0.000000] [ 0.000000] Memory state around the buggy address: [ 0.000000] ffffea0000047b80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ffffea0000047c00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] >ffffea0000047c80: 00 00 00 00 00 00 f1 f1 f1 f1 00 00 f2 f2 00 00 [ 0.000000] ^ [ 0.000000] ffffea0000047d00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ffffea0000047d80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ================================================================== [ 0.000000] Disabling lock debugging due to kernel taint [ 0.000000] Kernel panic - not syncing: panic_on_warn set ... [ 0.000000] [ 0.000000] CPU: 0 PID: 0 Comm: swapper Tainted: G B 4.4.109-g8cbe01c #10 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 6eabe20b7fb3308b ffffffff84207c40 ffffffff81d0289d [ 0.000000] ffffffff83fb3615 ffffffff84207d18 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d08 ffffffff814176ca 0000000041b58ab3 [ 0.000000] Call Trace: [ 0.000000] [] dump_stack+0xc1/0x124 [ 0.000000] [] panic+0x1aa/0x388 [ 0.000000] [] ? percpu_up_read.constprop.45+0xe1/0xe1 [ 0.000000] [] kasan_end_report+0x50/0x50 [ 0.000000] [] kasan_report+0x15c/0x370 [ 0.000000] [] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] free_all_bootmem+0xf2/0x24d [ 0.000000] [] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [] ? dmar_table_detect+0x60/0x60 [ 0.000000] [] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [] mem_init+0x13/0x74 [ 0.000000] [] start_kernel+0x31d/0x6e9 [ 0.000000] [] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [] x86_64_start_kernel+0x140/0x163 [ 0.000000] Rebooting in 86400 seconds.. [ 0.000000] ACPI MEMORY or I/O RESET_REG. SeaBIOS (version 1.8.2-20171012_061934-google) Total RAM Size = 0x00000001e0000000 = 7680 MiB CPUs found: 2 Max CPUs supported: 2 found virtio-scsi at 0:3 virtio-scsi vendor='Google' product='PersistentDisk' rev='1' type=0 removable=0 virtio-scsi blksize=512 sectors=4194304 = 2048 MiB drive 0x000f3050: PCHS=0/0/0 translation=lba LCHS=520/128/63 s=4194304 Booting from Hard Disk 0... early console in decompress_kernel input_data: 0x00000000039be26e input_len: 0x0000000001424c0d 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 4.4.109-g8cbe01c (syzkaller@ci) (gcc version 7.1.1 20170620 (GCC) ) #10 SMP PREEMPT Tue Jan 2 20:37:39 UTC 2018 [ 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 1158080118 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 4.4.109-g8cbe01c #10 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 62c1be4273c90cc2 ffffffff84207ce8 ffffffff81d0289d [ 0.000000] ffffea0000047ce0 ffffea0000047ce0 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d20 ffffffff814fad79 ffffea0000047ce0 [ 0.000000] Call Trace: [ 0.000000] [] dump_stack+0xc1/0x124 [ 0.000000] [] print_address_description+0x189/0x260 [ 0.000000] [] kasan_report+0x285/0x370 [ 0.000000] [] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] free_all_bootmem+0xf2/0x24d [ 0.000000] [] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [] ? dmar_table_detect+0x60/0x60 [ 0.000000] [] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [] mem_init+0x13/0x74 [ 0.000000] [] start_kernel+0x31d/0x6e9 [ 0.000000] [] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [] x86_64_start_kernel+0x140/0x163 [ 0.000000] [ 0.000000] [ 0.000000] Memory state around the buggy address: [ 0.000000] ffffea0000047b80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ffffea0000047c00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] >ffffea0000047c80: 00 00 00 00 00 00 f1 f1 f1 f1 00 00 f2 f2 00 00 [ 0.000000] ^ [ 0.000000] ffffea0000047d00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ffffea0000047d80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ================================================================== [ 0.000000] Disabling lock debugging due to kernel taint [ 0.000000] Kernel panic - not syncing: panic_on_warn set ... [ 0.000000] [ 0.000000] CPU: 0 PID: 0 Comm: swapper Tainted: G B 4.4.109-g8cbe01c #10 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 62c1be4273c90cc2 ffffffff84207c40 ffffffff81d0289d [ 0.000000] ffffffff83fb3615 ffffffff84207d18 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d08 ffffffff814176ca 0000000041b58ab3 [ 0.000000] Call Trace: [ 0.000000] [] dump_stack+0xc1/0x124 [ 0.000000] [] panic+0x1aa/0x388 [ 0.000000] [] ? percpu_up_read.constprop.45+0xe1/0xe1 [ 0.000000] [] kasan_end_report+0x50/0x50 [ 0.000000] [] kasan_report+0x15c/0x370 [ 0.000000] [] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] free_all_bootmem+0xf2/0x24d [ 0.000000] [] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [] ? dmar_table_detect+0x60/0x60 [ 0.000000] [] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [] mem_init+0x13/0x74 [ 0.000000] [] start_kernel+0x31d/0x6e9 [ 0.000000] [] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [] x86_64_start_kernel+0x140/0x163 [ 0.000000] Rebooting in 86400 seconds.. [ 0.000000] ACPI MEMORY or I/O RESET_REG. SeaBIOS (version 1.8.2-20171012_061934-google) Total RAM Size = 0x00000001e0000000 = 7680 MiB CPUs found: 2 Max CPUs supported: 2 found virtio-scsi at 0:3 virtio-scsi vendor='Google' product='PersistentDisk' rev='1' type=0 removable=0 virtio-scsi blksize=512 sectors=4194304 = 2048 MiB drive 0x000f3050: PCHS=0/0/0 translation=lba LCHS=520/128/63 s=4194304 Booting from Hard Disk 0... early console in decompress_kernel input_data: 0x00000000039be26e input_len: 0x0000000001424c0d 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 4.4.109-g8cbe01c (syzkaller@ci) (gcc version 7.1.1 20170620 (GCC) ) #10 SMP PREEMPT Tue Jan 2 20:37:39 UTC 2018 [ 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 1150383752 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 4.4.109-g8cbe01c #10 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 61e4c00772ec0e87 ffffffff84207ce8 ffffffff81d0289d [ 0.000000] ffffea0000047ce0 ffffea0000047ce0 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d20 ffffffff814fad79 ffffea0000047ce0 [ 0.000000] Call Trace: [ 0.000000] [] dump_stack+0xc1/0x124 [ 0.000000] [] print_address_description+0x189/0x260 [ 0.000000] [] kasan_report+0x285/0x370 [ 0.000000] [] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] free_all_bootmem+0xf2/0x24d [ 0.000000] [] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [] ? dmar_table_detect+0x60/0x60 [ 0.000000] [] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [] mem_init+0x13/0x74 [ 0.000000] [] start_kernel+0x31d/0x6e9 [ 0.000000] [] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [] x86_64_start_kernel+0x140/0x163 [ 0.000000] [ 0.000000] [ 0.000000] Memory state around the buggy address: [ 0.000000] ffffea0000047b80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ffffea0000047c00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] >ffffea0000047c80: 00 00 00 00 00 00 f1 f1 f1 f1 00 00 f2 f2 00 00 [ 0.000000] ^ [ 0.000000] ffffea0000047d00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ffffea0000047d80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ================================================================== [ 0.000000] Disabling lock debugging due to kernel taint [ 0.000000] Kernel panic - not syncing: panic_on_warn set ... [ 0.000000] [ 0.000000] CPU: 0 PID: 0 Comm: swapper Tainted: G B 4.4.109-g8cbe01c #10 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 61e4c00772ec0e87 ffffffff84207c40 ffffffff81d0289d [ 0.000000] ffffffff83fb3615 ffffffff84207d18 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d08 ffffffff814176ca 0000000041b58ab3 [ 0.000000] Call Trace: [ 0.000000] [] dump_stack+0xc1/0x124 [ 0.000000] [] panic+0x1aa/0x388 [ 0.000000] [] ? percpu_up_read.constprop.45+0xe1/0xe1 [ 0.000000] [] kasan_end_report+0x50/0x50 [ 0.000000] [] kasan_report+0x15c/0x370 [ 0.000000] [] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] free_all_bootmem+0xf2/0x24d [ 0.000000] [] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [] ? dmar_table_detect+0x60/0x60 [ 0.000000] [] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [] mem_init+0x13/0x74 [ 0.000000] [] start_kernel+0x31d/0x6e9 [ 0.000000] [] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [] x86_64_start_kernel+0x140/0x163 [ 0.000000] Rebooting in 86400 seconds.. [ 0.000000] ACPI MEMORY or I/O RESET_REG. SeaBIOS (version 1.8.2-20171012_061934-google) Total RAM Size = 0x00000001e0000000 = 7680 MiB CPUs found: 2 Max CPUs supported: 2 found virtio-scsi at 0:3 virtio-scsi vendor='Google' product='PersistentDisk' rev='1' type=0 removable=0 virtio-scsi blksize=512 sectors=4194304 = 2048 MiB drive 0x000f3050: PCHS=0/0/0 translation=lba LCHS=520/128/63 s=4194304 Booting from Hard Disk 0... early console in decompress_kernel input_data: 0x00000000039be26e input_len: 0x0000000001424c0d 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 4.4.109-g8cbe01c (syzkaller@ci) (gcc version 7.1.1 20170620 (GCC) ) #10 SMP PREEMPT Tue Jan 2 20:37:39 UTC 2018 [ 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 1326912833 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 4.4.109-g8cbe01c #10 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 7a17a2308b1ef0b0 ffffffff84207ce8 ffffffff81d0289d [ 0.000000] ffffea0000047ce0 ffffea0000047ce0 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d20 ffffffff814fad79 ffffea0000047ce0 [ 0.000000] Call Trace: [ 0.000000] [] dump_stack+0xc1/0x124 [ 0.000000] [] print_address_description+0x189/0x260 [ 0.000000] [] kasan_report+0x285/0x370 [ 0.000000] [] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] free_all_bootmem+0xf2/0x24d [ 0.000000] [] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [] ? dmar_table_detect+0x60/0x60 [ 0.000000] [] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [] mem_init+0x13/0x74 [ 0.000000] [] start_kernel+0x31d/0x6e9 [ 0.000000] [] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [] x86_64_start_kernel+0x140/0x163 [ 0.000000] [ 0.000000] [ 0.000000] Memory state around the buggy address: [ 0.000000] ffffea0000047b80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ffffea0000047c00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] >ffffea0000047c80: 00 00 00 00 00 00 f1 f1 f1 f1 00 00 f2 f2 00 00 [ 0.000000] ^ [ 0.000000] ffffea0000047d00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ffffea0000047d80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ================================================================== [ 0.000000] Disabling lock debugging due to kernel taint [ 0.000000] Kernel panic - not syncing: panic_on_warn set ... [ 0.000000] [ 0.000000] CPU: 0 PID: 0 Comm: swapper Tainted: G B 4.4.109-g8cbe01c #10 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 7a17a2308b1ef0b0 ffffffff84207c40 ffffffff81d0289d [ 0.000000] ffffffff83fb3615 ffffffff84207d18 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d08 ffffffff814176ca 0000000041b58ab3 [ 0.000000] Call Trace: [ 0.000000] [] dump_stack+0xc1/0x124 [ 0.000000] [] panic+0x1aa/0x388 [ 0.000000] [] ? percpu_up_read.constprop.45+0xe1/0xe1 [ 0.000000] [] kasan_end_report+0x50/0x50 [ 0.000000] [] kasan_report+0x15c/0x370 [ 0.000000] [] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] free_all_bootmem+0xf2/0x24d [ 0.000000] [] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [] ? dmar_table_detect+0x60/0x60 [ 0.000000] [] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [] mem_init+0x13/0x74 [ 0.000000] [] start_kernel+0x31d/0x6e9 [ 0.000000] [] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [] x86_64_start_kernel+0x140/0x163 [ 0.000000] Rebooting in 86400 seconds.. [ 0.000000] ACPI MEMORY or I/O RESET_REG. SeaBIOS (version 1.8.2-20171012_061934-google) Total RAM Size = 0x00000001e0000000 = 7680 MiB CPUs found: 2 Max CPUs supported: 2 found virtio-scsi at 0:3 virtio-scsi vendor='Google' product='PersistentDisk' rev='1' type=0 removable=0 virtio-scsi blksize=512 sectors=4194304 = 2048 MiB drive 0x000f3050: PCHS=0/0/0 translation=lba LCHS=520/128/63 s=4194304 Booting from Hard Disk 0... early console in decompress_kernel input_data: 0x00000000039be26e input_len: 0x0000000001424c0d 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 4.4.109-g8cbe01c (syzkaller@ci) (gcc version 7.1.1 20170620 (GCC) ) #10 SMP PREEMPT Tue Jan 2 20:37:39 UTC 2018 [ 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 1341325387 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 4.4.109-g8cbe01c #10 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 7c1b453b8d2293bb ffffffff84207ce8 ffffffff81d0289d [ 0.000000] ffffea0000047ce0 ffffea0000047ce0 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d20 ffffffff814fad79 ffffea0000047ce0 [ 0.000000] Call Trace: [ 0.000000] [] dump_stack+0xc1/0x124 [ 0.000000] [] print_address_description+0x189/0x260 [ 0.000000] [] kasan_report+0x285/0x370 [ 0.000000] [] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] free_all_bootmem+0xf2/0x24d [ 0.000000] [] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [] ? dmar_table_detect+0x60/0x60 [ 0.000000] [] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [] mem_init+0x13/0x74 [ 0.000000] [] start_kernel+0x31d/0x6e9 [ 0.000000] [] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [] x86_64_start_kernel+0x140/0x163 [ 0.000000] [ 0.000000] [ 0.000000] Memory state around the buggy address: [ 0.000000] ffffea0000047b80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ffffea0000047c00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] >ffffea0000047c80: 00 00 00 00 00 00 f1 f1 f1 f1 00 00 f2 f2 00 00 [ 0.000000] ^ [ 0.000000] ffffea0000047d00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ffffea0000047d80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ================================================================== [ 0.000000] Disabling lock debugging due to kernel taint [ 0.000000] Kernel panic - not syncing: panic_on_warn set ... [ 0.000000] [ 0.000000] CPU: 0 PID: 0 Comm: swapper Tainted: G B 4.4.109-g8cbe01c #10 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 7c1b453b8d2293bb ffffffff84207c40 ffffffff81d0289d [ 0.000000] ffffffff83fb3615 ffffffff84207d18 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d08 ffffffff814176ca 0000000041b58ab3 [ 0.000000] Call Trace: [ 0.000000] [] dump_stack+0xc1/0x124 [ 0.000000] [] panic+0x1aa/0x388 [ 0.000000] [] ? percpu_up_read.constprop.45+0xe1/0xe1 [ 0.000000] [] kasan_end_report+0x50/0x50 [ 0.000000] [] kasan_report+0x15c/0x370 [ 0.000000] [] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] free_all_bootmem+0xf2/0x24d [ 0.000000] [] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [] ? dmar_table_detect+0x60/0x60 [ 0.000000] [] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [] mem_init+0x13/0x74 [ 0.000000] [] start_kernel+0x31d/0x6e9 [ 0.000000] [] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [] x86_64_start_kernel+0x140/0x163 [ 0.000000] Rebooting in 86400 seconds.. [ 0.000000] ACPI MEMORY or I/O RESET_REG. SeaBIOS (version 1.8.2-20171012_061934-google) Total RAM Size = 0x00000001e0000000 = 7680 MiB CPUs found: 2 Max CPUs supported: 2 found virtio-scsi at 0:3 virtio-scsi vendor='Google' product='PersistentDisk' rev='1' type=0 removable=0 virtio-scsi blksize=512 sectors=4194304 = 2048 MiB drive 0x000f3050: PCHS=0/0/0 translation=lba LCHS=520/128/63 s=4194304 Booting from Hard Disk 0... early console in decompress_kernel input_data: 0x00000000039be26e input_len: 0x0000000001424c0d 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 4.4.109-g8cbe01c (syzkaller@ci) (gcc version 7.1.1 20170620 (GCC) ) #10 SMP PREEMPT Tue Jan 2 20:37:39 UTC 2018 [ 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 1214274489 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 4.4.109-g8cbe01c #10 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 6a9885c67b9fd446 ffffffff84207ce8 ffffffff81d0289d [ 0.000000] ffffea0000047ce0 ffffea0000047ce0 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d20 ffffffff814fad79 ffffea0000047ce0 [ 0.000000] Call Trace: [ 0.000000] [] dump_stack+0xc1/0x124 [ 0.000000] [] print_address_description+0x189/0x260 [ 0.000000] [] kasan_report+0x285/0x370 [ 0.000000] [] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] free_all_bootmem+0xf2/0x24d [ 0.000000] [] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [] ? dmar_table_detect+0x60/0x60 [ 0.000000] [] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [] mem_init+0x13/0x74 [ 0.000000] [] start_kernel+0x31d/0x6e9 [ 0.000000] [] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [] x86_64_start_kernel+0x140/0x163 [ 0.000000] [ 0.000000] [ 0.000000] Memory state around the buggy address: [ 0.000000] ffffea0000047b80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ffffea0000047c00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] >ffffea0000047c80: 00 00 00 00 00 00 f1 f1 f1 f1 00 00 f2 f2 00 00 [ 0.000000] ^ [ 0.000000] ffffea0000047d00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ffffea0000047d80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ================================================================== [ 0.000000] Disabling lock debugging due to kernel taint [ 0.000000] Kernel panic - not syncing: panic_on_warn set ... [ 0.000000] [ 0.000000] CPU: 0 PID: 0 Comm: swapper Tainted: G B 4.4.109-g8cbe01c #10 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 6a9885c67b9fd446 ffffffff84207c40 ffffffff81d0289d [ 0.000000] ffffffff83fb3615 ffffffff84207d18 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d08 ffffffff814176ca 0000000041b58ab3 [ 0.000000] Call Trace: [ 0.000000] [] dump_stack+0xc1/0x124 [ 0.000000] [] panic+0x1aa/0x388 [ 0.000000] [] ? percpu_up_read.constprop.45+0xe1/0xe1 [ 0.000000] [] kasan_end_report+0x50/0x50 [ 0.000000] [] kasan_report+0x15c/0x370 [ 0.000000] [] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] free_all_bootmem+0xf2/0x24d [ 0.000000] [] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [] ? dmar_table_detect+0x60/0x60 [ 0.000000] [] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [] mem_init+0x13/0x74 [ 0.000000] [] start_kernel+0x31d/0x6e9 [ 0.000000] [] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [] x86_64_start_kernel+0x140/0x163 [ 0.000000] Rebooting in 86400 seconds.. [ 0.000000] ACPI MEMORY or I/O RESET_REG. SeaBIOS (version 1.8.2-20171012_061934-google) Total RAM Size = 0x00000001e0000000 = 7680 MiB CPUs found: 2 Max CPUs supported: 2 found virtio-scsi at 0:3 virtio-scsi vendor='Google' product='PersistentDisk' rev='1' type=0 removable=0 virtio-scsi blksize=512 sectors=4194304 = 2048 MiB drive 0x000f3050: PCHS=0/0/0 translation=lba LCHS=520/128/63 s=4194304 Booting from Hard Disk 0... early console in decompress_kernel input_data: 0x00000000039be26e input_len: 0x0000000001424c0d 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 4.4.109-g8cbe01c (syzkaller@ci) (gcc version 7.1.1 20170620 (GCC) ) #10 SMP PREEMPT Tue Jan 2 20:37:39 UTC 2018 [ 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 1287071461 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 4.4.109-g8cbe01c #10 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 7481073a858855ba ffffffff84207ce8 ffffffff81d0289d [ 0.000000] ffffea0000047ce0 ffffea0000047ce0 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d20 ffffffff814fad79 ffffea0000047ce0 [ 0.000000] Call Trace: [ 0.000000] [] dump_stack+0xc1/0x124 [ 0.000000] [] print_address_description+0x189/0x260 [ 0.000000] [] kasan_report+0x285/0x370 [ 0.000000] [] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] free_all_bootmem+0xf2/0x24d [ 0.000000] [] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [] ? dmar_table_detect+0x60/0x60 [ 0.000000] [] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [] mem_init+0x13/0x74 [ 0.000000] [] start_kernel+0x31d/0x6e9 [ 0.000000] [] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [] x86_64_start_kernel+0x140/0x163 [ 0.000000] [ 0.000000] [ 0.000000] Memory state around the buggy address: [ 0.000000] ffffea0000047b80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ffffea0000047c00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] >ffffea0000047c80: 00 00 00 00 00 00 f1 f1 f1 f1 00 00 f2 f2 00 00 [ 0.000000] ^ [ 0.000000] ffffea0000047d00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ffffea0000047d80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ================================================================== [ 0.000000] Disabling lock debugging due to kernel taint [ 0.000000] Kernel panic - not syncing: panic_on_warn set ... [ 0.000000] [ 0.000000] CPU: 0 PID: 0 Comm: swapper Tainted: G B 4.4.109-g8cbe01c #10 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 7481073a858855ba ffffffff84207c40 ffffffff81d0289d [ 0.000000] ffffffff83fb3615 ffffffff84207d18 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d08 ffffffff814176ca 0000000041b58ab3 [ 0.000000] Call Trace: [ 0.000000] [] dump_stack+0xc1/0x124 [ 0.000000] [] panic+0x1aa/0x388 [ 0.000000] [] ? percpu_up_read.constprop.45+0xe1/0xe1 [ 0.000000] [] kasan_end_report+0x50/0x50 [ 0.000000] [] kasan_report+0x15c/0x370 [ 0.000000] [] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] free_all_bootmem+0xf2/0x24d [ 0.000000] [] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [] ? dmar_table_detect+0x60/0x60 [ 0.000000] [] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [] mem_init+0x13/0x74 [ 0.000000] [] start_kernel+0x31d/0x6e9 [ 0.000000] [] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [] x86_64_start_kernel+0x140/0x163 [ 0.000000] Rebooting in 86400 seconds.. [ 0.000000] ACPI MEMORY or I/O RESET_REG. SeaBIOS (version 1.8.2-20171012_061934-google) Total RAM Size = 0x00000001e0000000 = 7680 MiB CPUs found: 2 Max CPUs supported: 2 found virtio-scsi at 0:3 virtio-scsi vendor='Google' product='PersistentDisk' rev='1' type=0 removable=0 virtio-scsi blksize=512 sectors=4194304 = 2048 MiB drive 0x000f3050: PCHS=0/0/0 translation=lba LCHS=520/128/63 s=4194304 Booting from Hard Disk 0... early console in decompress_kernel input_data: 0x00000000039be26e input_len: 0x0000000001424c0d 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 4.4.109-g8cbe01c (syzkaller@ci) (gcc version 7.1.1 20170620 (GCC) ) #10 SMP PREEMPT Tue Jan 2 20:37:39 UTC 2018 [ 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 1337627598 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 4.4.109-g8cbe01c #10 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 7b5def908c653e10 ffffffff84207ce8 ffffffff81d0289d [ 0.000000] ffffea0000047ce0 ffffea0000047ce0 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d20 ffffffff814fad79 ffffea0000047ce0 [ 0.000000] Call Trace: [ 0.000000] [] dump_stack+0xc1/0x124 [ 0.000000] [] print_address_description+0x189/0x260 [ 0.000000] [] kasan_report+0x285/0x370 [ 0.000000] [] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] free_all_bootmem+0xf2/0x24d [ 0.000000] [] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [] ? dmar_table_detect+0x60/0x60 [ 0.000000] [] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [] mem_init+0x13/0x74 [ 0.000000] [] start_kernel+0x31d/0x6e9 [ 0.000000] [] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [] x86_64_start_kernel+0x140/0x163 [ 0.000000] [ 0.000000] [ 0.000000] Memory state around the buggy address: [ 0.000000] ffffea0000047b80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ffffea0000047c00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] >ffffea0000047c80: 00 00 00 00 00 00 f1 f1 f1 f1 00 00 f2 f2 00 00 [ 0.000000] ^ [ 0.000000] ffffea0000047d00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ffffea0000047d80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ================================================================== [ 0.000000] Disabling lock debugging due to kernel taint [ 0.000000] Kernel panic - not syncing: panic_on_warn set ... [ 0.000000] [ 0.000000] CPU: 0 PID: 0 Comm: swapper Tainted: G B 4.4.109-g8cbe01c #10 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 7b5def908c653e10 ffffffff84207c40 ffffffff81d0289d [ 0.000000] ffffffff83fb3615 ffffffff84207d18 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d08 ffffffff814176ca 0000000041b58ab3 [ 0.000000] Call Trace: [ 0.000000] [] dump_stack+0xc1/0x124 [ 0.000000] [] panic+0x1aa/0x388 [ 0.000000] [] ? percpu_up_read.constprop.45+0xe1/0xe1 [ 0.000000] [] kasan_end_report+0x50/0x50 [ 0.000000] [] kasan_report+0x15c/0x370 [ 0.000000] [] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] free_all_bootmem+0xf2/0x24d [ 0.000000] [] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [] ? dmar_table_detect+0x60/0x60 [ 0.000000] [] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [] mem_init+0x13/0x74 [ 0.000000] [] start_kernel+0x31d/0x6e9 [ 0.000000] [] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [] x86_64_start_kernel+0x140/0x163 [ 0.000000] Rebooting in 86400 seconds.. [ 0.000000] ACPI MEMORY or I/O RESET_REG. SeaBIOS (version 1.8.2-20171012_061934-google) Total RAM Size = 0x00000001e0000000 = 7680 MiB CPUs found: 2 Max CPUs supported: 2 found virtio-scsi at 0:3 virtio-scsi vendor='Google' product='PersistentDisk' rev='1' type=0 removable=0 virtio-scsi blksize=512 sectors=4194304 = 2048 MiB drive 0x000f3050: PCHS=0/0/0 translation=lba LCHS=520/128/63 s=4194304 Booting from Hard Disk 0... early console in decompress_kernel input_data: 0x00000000039be26e input_len: 0x0000000001424c0d 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 4.4.109-g8cbe01c (syzkaller@ci) (gcc version 7.1.1 20170620 (GCC) ) #10 SMP PREEMPT Tue Jan 2 20:37:39 UTC 2018 [ 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 1341111283 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 4.4.109-g8cbe01c #10 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 7bd2120e8cd9608e ffffffff84207ce8 ffffffff81d0289d [ 0.000000] ffffea0000047ce0 ffffea0000047ce0 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d20 ffffffff814fad79 ffffea0000047ce0 [ 0.000000] Call Trace: [ 0.000000] [] dump_stack+0xc1/0x124 [ 0.000000] [] print_address_description+0x189/0x260 [ 0.000000] [] kasan_report+0x285/0x370 [ 0.000000] [] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] free_all_bootmem+0xf2/0x24d [ 0.000000] [] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [] ? dmar_table_detect+0x60/0x60 [ 0.000000] [] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [] mem_init+0x13/0x74 [ 0.000000] [] start_kernel+0x31d/0x6e9 [ 0.000000] [] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [] x86_64_start_kernel+0x140/0x163 [ 0.000000] [ 0.000000] [ 0.000000] Memory state around the buggy address: [ 0.000000] ffffea0000047b80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ffffea0000047c00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] >ffffea0000047c80: 00 00 00 00 00 00 f1 f1 f1 f1 00 00 f2 f2 00 00 [ 0.000000] ^ [ 0.000000] ffffea0000047d00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ffffea0000047d80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ================================================================== [ 0.000000] Disabling lock debugging due to kernel taint [ 0.000000] Kernel panic - not syncing: panic_on_warn set ... [ 0.000000] [ 0.000000] CPU: 0 PID: 0 Comm: swapper Tainted: G B 4.4.109-g8cbe01c #10 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 7bd2120e8cd9608e ffffffff84207c40 ffffffff81d0289d [ 0.000000] ffffffff83fb3615 ffffffff84207d18 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d08 ffffffff814176ca 0000000041b58ab3 [ 0.000000] Call Trace: [ 0.000000] [] dump_stack+0xc1/0x124 [ 0.000000] [] panic+0x1aa/0x388 [ 0.000000] [] ? percpu_up_read.constprop.45+0xe1/0xe1 [ 0.000000] [] kasan_end_report+0x50/0x50 [ 0.000000] [] kasan_report+0x15c/0x370 [ 0.000000] [] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] free_all_bootmem+0xf2/0x24d [ 0.000000] [] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [] ? dmar_table_detect+0x60/0x60 [ 0.000000] [] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [] mem_init+0x13/0x74 [ 0.000000] [] start_kernel+0x31d/0x6e9 [ 0.000000] [] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [] x86_64_start_kernel+0x140/0x163 [ 0.000000] Rebooting in 86400 seconds.. [ 0.000000] ACPI MEMORY or I/O RESET_REG. SeaBIOS (version 1.8.2-20171012_061934-google) Total RAM Size = 0x00000001e0000000 = 7680 MiB CPUs found: 2 Max CPUs supported: 2 found virtio-scsi at 0:3 virtio-scsi vendor='Google' product='PersistentDisk' rev='1' type=0 removable=0 virtio-scsi blksize=512 sectors=4194304 = 2048 MiB drive 0x000f3050: PCHS=0/0/0 translation=lba LCHS=520/128/63 s=4194304 Booting from Hard Disk 0... early console in decompress_kernel input_data: 0x00000000039be26e input_len: 0x0000000001424c0d 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 4.4.109-g8cbe01c (syzkaller@ci) (gcc version 7.1.1 20170620 (GCC) ) #10 SMP PREEMPT Tue Jan 2 20:37:39 UTC 2018 [ 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 1286689058 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 4.4.109-g8cbe01c #10 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 742ad433853222b3 ffffffff84207ce8 ffffffff81d0289d [ 0.000000] ffffea0000047ce0 ffffea0000047ce0 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d20 ffffffff814fad79 ffffea0000047ce0 [ 0.000000] Call Trace: [ 0.000000] [] dump_stack+0xc1/0x124 [ 0.000000] [] print_address_description+0x189/0x260 [ 0.000000] [] kasan_report+0x285/0x370 [ 0.000000] [] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] free_all_bootmem+0xf2/0x24d [ 0.000000] [] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [] ? dmar_table_detect+0x60/0x60 [ 0.000000] [] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [] mem_init+0x13/0x74 [ 0.000000] [] start_kernel+0x31d/0x6e9 [ 0.000000] [] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [] x86_64_start_kernel+0x140/0x163 [ 0.000000] [ 0.000000] [ 0.000000] Memory state around the buggy address: [ 0.000000] ffffea0000047b80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ffffea0000047c00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] >ffffea0000047c80: 00 00 00 00 00 00 f1 f1 f1 f1 00 00 f2 f2 00 00 [ 0.000000] ^ [ 0.000000] ffffea0000047d00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ffffea0000047d80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ================================================================== [ 0.000000] Disabling lock debugging due to kernel taint [ 0.000000] Kernel panic - not syncing: panic_on_warn set ... [ 0.000000] [ 0.000000] CPU: 0 PID: 0 Comm: swapper Tainted: G B 4.4.109-g8cbe01c #10 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 742ad433853222b3 ffffffff84207c40 ffffffff81d0289d [ 0.000000] ffffffff83fb3615 ffffffff84207d18 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d08 ffffffff814176ca 0000000041b58ab3 [ 0.000000] Call Trace: [ 0.000000] [] dump_stack+0xc1/0x124 [ 0.000000] [] panic+0x1aa/0x388 [ 0.000000] [] ? percpu_up_read.constprop.45+0xe1/0xe1 [ 0.000000] [] kasan_end_report+0x50/0x50 [ 0.000000] [] kasan_report+0x15c/0x370 [ 0.000000] [] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] free_all_bootmem+0xf2/0x24d [ 0.000000] [] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [] ? dmar_table_detect+0x60/0x60 [ 0.000000] [] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [] mem_init+0x13/0x74 [ 0.000000] [] start_kernel+0x31d/0x6e9 [ 0.000000] [] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [] x86_64_start_kernel+0x140/0x163 [ 0.000000] Rebooting in 86400 seconds.. [ 0.000000] ACPI MEMORY or I/O RESET_REG. SeaBIOS (version 1.8.2-20171012_061934-google) Total RAM Size = 0x00000001e0000000 = 7680 MiB CPUs found: 2 Max CPUs supported: 2 found virtio-scsi at 0:3 virtio-scsi vendor='Google' product='PersistentDisk' rev='1' type=0 removable=0 virtio-scsi blksize=512 sectors=4194304 = 2048 MiB drive 0x000f3050: PCHS=0/0/0 translation=lba LCHS=520/128/63 s=4194304 Booting from Hard Disk 0... early console in decompress_kernel input_data: 0x00000000039be26e input_len: 0x0000000001424c0d 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 4.4.109-g8cbe01c (syzkaller@ci) (gcc version 7.1.1 20170620 (GCC) ) #10 SMP PREEMPT Tue Jan 2 20:37:39 UTC 2018 [ 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 1328939770 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 4.4.109-g8cbe01c #10 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 7a64a6548b6bf4d4 ffffffff84207ce8 ffffffff81d0289d [ 0.000000] ffffea0000047ce0 ffffea0000047ce0 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d20 ffffffff814fad79 ffffea0000047ce0 [ 0.000000] Call Trace: [ 0.000000] [] dump_stack+0xc1/0x124 [ 0.000000] [] print_address_description+0x189/0x260 [ 0.000000] [] kasan_report+0x285/0x370 [ 0.000000] [] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] free_all_bootmem+0xf2/0x24d [ 0.000000] [] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [] ? dmar_table_detect+0x60/0x60 [ 0.000000] [] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [] mem_init+0x13/0x74 [ 0.000000] [] start_kernel+0x31d/0x6e9 [ 0.000000] [] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [] x86_64_start_kernel+0x140/0x163 [ 0.000000] [ 0.000000] [ 0.000000] Memory state around the buggy address: [ 0.000000] ffffea0000047b80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ffffea0000047c00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] >ffffea0000047c80: 00 00 00 00 00 00 f1 f1 f1 f1 00 00 f2 f2 00 00 [ 0.000000] ^ [ 0.000000] ffffea0000047d00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ffffea0000047d80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ================================================================== [ 0.000000] Disabling lock debugging due to kernel taint [ 0.000000] Kernel panic - not syncing: panic_on_warn set ... [ 0.000000] [ 0.000000] CPU: 0 PID: 0 Comm: swapper Tainted: G B 4.4.109-g8cbe01c #10 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 7a64a6548b6bf4d4 ffffffff84207c40 ffffffff81d0289d [ 0.000000] ffffffff83fb3615 ffffffff84207d18 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d08 ffffffff814176ca 0000000041b58ab3 [ 0.000000] Call Trace: [ 0.000000] [] dump_stack+0xc1/0x124 [ 0.000000] [] panic+0x1aa/0x388 [ 0.000000] [] ? percpu_up_read.constprop.45+0xe1/0xe1 [ 0.000000] [] kasan_end_report+0x50/0x50 [ 0.000000] [] kasan_report+0x15c/0x370 [ 0.000000] [] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] free_all_bootmem+0xf2/0x24d [ 0.000000] [] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [] ? dmar_table_detect+0x60/0x60 [ 0.000000] [] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [] mem_init+0x13/0x74 [ 0.000000] [] start_kernel+0x31d/0x6e9 [ 0.000000] [] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [] x86_64_start_kernel+0x140/0x163 [ 0.000000] Rebooting in 86400 seconds.. [ 0.000000] ACPI MEMORY or I/O RESET_REG. SeaBIOS (version 1.8.2-20171012_061934-google) Total RAM Size = 0x00000001e0000000 = 7680 MiB CPUs found: 2 Max CPUs supported: 2 found virtio-scsi at 0:3 virtio-scsi vendor='Google' product='PersistentDisk' rev='1' type=0 removable=0 virtio-scsi blksize=512 sectors=4194304 = 2048 MiB drive 0x000f3050: PCHS=0/0/0 translation=lba LCHS=520/128/63 s=4194304 Booting from Hard Disk 0... early console in decompress_kernel input_data: 0x00000000039be26e input_len: 0x0000000001424c0d 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 4.4.109-g8cbe01c (syzkaller@ci) (gcc version 7.1.1 20170620 (GCC) ) #10 SMP PREEMPT Tue Jan 2 20:37:39 UTC 2018 [ 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 1253172230 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 4.4.109-g8cbe01c #10 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 6fd6d7a280de2622 ffffffff84207ce8 ffffffff81d0289d [ 0.000000] ffffea0000047ce0 ffffea0000047ce0 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d20 ffffffff814fad79 ffffea0000047ce0 [ 0.000000] Call Trace: [ 0.000000] [] dump_stack+0xc1/0x124 [ 0.000000] [] print_address_description+0x189/0x260 [ 0.000000] [] kasan_report+0x285/0x370 [ 0.000000] [] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] free_all_bootmem+0xf2/0x24d [ 0.000000] [] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [] ? dmar_table_detect+0x60/0x60 [ 0.000000] [] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [] mem_init+0x13/0x74 [ 0.000000] [] start_kernel+0x31d/0x6e9 [ 0.000000] [] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [] x86_64_start_kernel+0x140/0x163 [ 0.000000] [ 0.000000] [ 0.000000] Memory state around the buggy address: [ 0.000000] ffffea0000047b80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ffffea0000047c00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] >ffffea0000047c80: 00 00 00 00 00 00 f1 f1 f1 f1 00 00 f2 f2 00 00 [ 0.000000] ^ [ 0.000000] ffffea0000047d00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ffffea0000047d80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ================================================================== [ 0.000000] Disabling lock debugging due to kernel taint [ 0.000000] Kernel panic - not syncing: panic_on_warn set ... [ 0.000000] [ 0.000000] CPU: 0 PID: 0 Comm: swapper Tainted: G B 4.4.109-g8cbe01c #10 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 6fd6d7a280de2622 ffffffff84207c40 ffffffff81d0289d [ 0.000000] ffffffff83fb3615 ffffffff84207d18 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d08 ffffffff814176ca 0000000041b58ab3 [ 0.000000] Call Trace: [ 0.000000] [] dump_stack+0xc1/0x124 [ 0.000000] [] panic+0x1aa/0x388 [ 0.000000] [] ? percpu_up_read.constprop.45+0xe1/0xe1 [ 0.000000] [] kasan_end_report+0x50/0x50 [ 0.000000] [] kasan_report+0x15c/0x370 [ 0.000000] [] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] free_all_bootmem+0xf2/0x24d [ 0.000000] [] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [] ? dmar_table_detect+0x60/0x60 [ 0.000000] [] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [] mem_init+0x13/0x74 [ 0.000000] [] start_kernel+0x31d/0x6e9 [ 0.000000] [] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [] x86_64_start_kernel+0x140/0x163 [ 0.000000] Rebooting in 86400 seconds.. [ 0.000000] ACPI MEMORY or I/O RESET_REG. [SeaBIOS (version 1.8.2-20171012_061934-google) Total RAM Size = 0x00000001e0000000 = 7680 MiB CPUs found: 2 Max CPUs supported: 2 found virtio-scsi at 0:3 virtio-scsi vendor='Google' product='PersistentDisk' rev='1' type=0 removable=0 virtio-scsi blksize=512 sectors=4194304 = 2048 MiB drive 0x000f3050: PCHS=0/0/0 translation=lba LCHS=520/128/63 s=4194304 Booting from Hard Disk 0... early console in decompress_kernel input_data: 0x00000000039be26e input_len: 0x0000000001424c0d 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 4.4.109-g8cbe01c (syzkaller@ci) (gcc version 7.1.1 20170620 (GCC) ) #10 SMP PREEMPT Tue Jan 2 20:37:39 UTC 2018 [ 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 1237151018 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 4.4.109-g8cbe01c #10 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 6db55c747ebcaaf4 ffffffff84207ce8 ffffffff81d0289d [ 0.000000] ffffea0000047ce0 ffffea0000047ce0 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d20 ffffffff814fad79 ffffea0000047ce0 [ 0.000000] Call Trace: [ 0.000000] [] dump_stack+0xc1/0x124 [ 0.000000] [] print_address_description+0x189/0x260 [ 0.000000] [] kasan_report+0x285/0x370 [ 0.000000] [] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] free_all_bootmem+0xf2/0x24d [ 0.000000] [] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [] ? dmar_table_detect+0x60/0x60 [ 0.000000] [] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [] mem_init+0x13/0x74 [ 0.000000] [] start_kernel+0x31d/0x6e9 [ 0.000000] [] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [] x86_64_start_kernel+0x140/0x163 [ 0.000000] [ 0.000000] [ 0.000000] Memory state around the buggy address: [ 0.000000] ffffea0000047b80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ffffea0000047c00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] >ffffea0000047c80: 00 00 00 00 00 00 f1 f1 f1 f1 00 00 f2 f2 00 00 [ 0.000000] ^ [ 0.000000] ffffea0000047d00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ffffea0000047d80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ================================================================== [ 0.000000] Disabling lock debugging due to kernel taint [ 0.000000] Kernel panic - not syncing: panic_on_warn set ... [ 0.000000] [ 0.000000] CPU: 0 PID: 0 Comm: swapper Tainted: G B 4.4.109-g8cbe01c #10 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 6db55c747ebcaaf4 ffffffff84207c40 ffffffff81d0289d [ 0.000000] ffffffff83fb3615 ffffffff84207d18 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d08 ffffffff814176ca 0000000041b58ab3 [ 0.000000] Call Trace: [ 0.000000] [] dump_stack+0xc1/0x124 [ 0.000000] [] panic+0x1aa/0x388 [ 0.000000] [] ? percpu_up_read.constprop.45+0xe1/0xe1 [ 0.000000] [] kasan_end_report+0x50/0x50 [ 0.000000] [] kasan_report+0x15c/0x370 [ 0.000000] [] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] free_all_bootmem+0xf2/0x24d [ 0.000000] [] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [] ? dmar_table_detect+0x60/0x60 [ 0.000000] [] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [] mem_init+0x13/0x74 [ 0.000000] [] start_kernel+0x31d/0x6e9 [ 0.000000] [] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [] x86_64_start_kernel+0x140/0x163 [ 0.000000] Rebooting in 86400 seconds.. [ 0.000000] ACPI MEMORY or I/O RESET_REG. SeaBIOS (version 1.8.2-20171012_061934-google) Total RAM Size = 0x00000001e0000000 = 7680 MiB CPUs found: 2 Max CPUs supported: 2 found virtio-scsi at 0:3 virtio-scsi vendor='Google' product='PersistentDisk' rev='1' type=0 removable=0 virtio-scsi blksize=512 sectors=4194304 = 2048 MiB drive 0x000f3050: PCHS=0/0/0 translation=lba LCHS=520/128/63 s=4194304 Booting from Hard Disk 0... early console in decompress_kernel input_data: 0x00000000039be26e input_len: 0x0000000001424c0d 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 4.4.109-g8cbe01c (syzkaller@ci) (gcc version 7.1.1 20170620 (GCC) ) #10 SMP PREEMPT Tue Jan 2 20:37:39 UTC 2018 [ 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 1286831012 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 4.4.109-g8cbe01c #10 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 745f62a68566b126 ffffffff84207ce8 ffffffff81d0289d [ 0.000000] ffffea0000047ce0 ffffea0000047ce0 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d20 ffffffff814fad79 ffffea0000047ce0 [ 0.000000] Call Trace: [ 0.000000] [] dump_stack+0xc1/0x124 [ 0.000000] [] print_address_description+0x189/0x260 [ 0.000000] [] kasan_report+0x285/0x370 [ 0.000000] [] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] free_all_bootmem+0xf2/0x24d [ 0.000000] [] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [] ? dmar_table_detect+0x60/0x60 [ 0.000000] [] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [] mem_init+0x13/0x74 [ 0.000000] [] start_kernel+0x31d/0x6e9 [ 0.000000] [] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [] x86_64_start_kernel+0x140/0x163 [ 0.000000] [ 0.000000] [ 0.000000] Memory state around the buggy address: [ 0.000000] ffffea0000047b80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ffffea0000047c00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] >ffffea0000047c80: 00 00 00 00 00 00 f1 f1 f1 f1 00 00 f2 f2 00 00 [ 0.000000] ^ [ 0.000000] ffffea0000047d00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ffffea0000047d80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ================================================================== [ 0.000000] Disabling lock debugging due to kernel taint [ 0.000000] Kernel panic - not syncing: panic_on_warn set ... [ 0.000000] [ 0.000000] CPU: 0 PID: 0 Comm: swapper Tainted: G B 4.4.109-g8cbe01c #10 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 745f62a68566b126 ffffffff84207c40 ffffffff81d0289d [ 0.000000] ffffffff83fb3615 ffffffff84207d18 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d08 ffffffff814176ca 0000000041b58ab3 [ 0.000000] Call Trace: [ 0.000000] [] dump_stack+0xc1/0x124 [ 0.000000] [] panic+0x1aa/0x388 [ 0.000000] [] ? percpu_up_read.constprop.45+0xe1/0xe1 [ 0.000000] [] kasan_end_report+0x50/0x50 [ 0.000000] [] kasan_report+0x15c/0x370 [ 0.000000] [] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] free_all_bootmem+0xf2/0x24d [ 0.000000] [] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [] ? dmar_table_detect+0x60/0x60 [ 0.000000] [] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [] mem_init+0x13/0x74 [ 0.000000] [] start_kernel+0x31d/0x6e9 [ 0.000000] [] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [] x86_64_start_kernel+0x140/0x163 [ 0.000000] Rebooting in 86400 seconds.. [ 0.000000] ACPI MEMORY or I/O RESET_REG. SeaBIOS (version 1.8.2-20171012_061934-google) Total RAM Size = 0x00000001e0000000 = 7680 MiB CPUs found: 2 Max CPUs supported: 2 found virtio-scsi at 0:3 virtio-scsi vendor='Google' product='PersistentDisk' rev='1' type=0 removable=0 virtio-scsi blksize=512 sectors=4194304 = 2048 MiB drive 0x000f3050: PCHS=0/0/0 translation=lba LCHS=520/128/63 s=4194304 Booting from Hard Disk 0... early console in decompress_kernel input_data: 0x00000000039be26e input_len: 0x0000000001424c0d 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 4.4.109-g8cbe01c (syzkaller@ci) (gcc version 7.1.1 20170620 (GCC) ) #10 SMP PREEMPT Tue Jan 2 20:37:39 UTC 2018 [ 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 1377528727 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 4.4.109-g8cbe01c #10 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 80987d6d919fcbed ffffffff84207ce8 ffffffff81d0289d [ 0.000000] ffffea0000047ce0 ffffea0000047ce0 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d20 ffffffff814fad79 ffffea0000047ce0 [ 0.000000] Call Trace: [ 0.000000] [] dump_stack+0xc1/0x124 [ 0.000000] [] print_address_description+0x189/0x260 [ 0.000000] [] kasan_report+0x285/0x370 [ 0.000000] [] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] free_all_bootmem+0xf2/0x24d [ 0.000000] [] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [] ? dmar_table_detect+0x60/0x60 [ 0.000000] [] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [] mem_init+0x13/0x74 [ 0.000000] [] start_kernel+0x31d/0x6e9 [ 0.000000] [] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [] x86_64_start_kernel+0x140/0x163 [ 0.000000] [ 0.000000] [ 0.000000] Memory state around the buggy address: [ 0.000000] ffffea0000047b80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ffffea0000047c00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] >ffffea0000047c80: 00 00 00 00 00 00 f1 f1 f1 f1 00 00 f2 f2 00 00 [ 0.000000] ^ [ 0.000000] ffffea0000047d00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ffffea0000047d80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ================================================================== [ 0.000000] Disabling lock debugging due to kernel taint [ 0.000000] Kernel panic - not syncing: panic_on_warn set ... [ 0.000000] [ 0.000000] CPU: 0 PID: 0 Comm: swapper Tainted: G B 4.4.109-g8cbe01c #10 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 80987d6d919fcbed ffffffff84207c40 ffffffff81d0289d [ 0.000000] ffffffff83fb3615 ffffffff84207d18 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d08 ffffffff814176ca 0000000041b58ab3 [ 0.000000] Call Trace: [ 0.000000] [] dump_stack+0xc1/0x124 [ 0.000000] [] panic+0x1aa/0x388 [ 0.000000] [] ? percpu_up_read.constprop.45+0xe1/0xe1 [ 0.000000] [] kasan_end_report+0x50/0x50 [ 0.000000] [] kasan_report+0x15c/0x370 [ 0.000000] [] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] free_all_bootmem+0xf2/0x24d [ 0.000000] [] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [] ? dmar_table_detect+0x60/0x60 [ 0.000000] [] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [] mem_init+0x13/0x74 [ 0.000000] [] start_kernel+0x31d/0x6e9 [ 0.000000] [] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [] x86_64_start_kernel+0x140/0x163 [ 0.000000] Rebooting in 86400 seconds.. [ 0.000000] ACPI MEMORY or I/O RESET_REG. SeaBIOS (version 1.8.2-20171012_061934-google) Total RAM Size = 0x00000001e0000000 = 7680 MiB CPUs found: 2 Max CPUs supported: 2 found virtio-scsi at 0:3 virtio-scsi vendor='Google' product='PersistentDisk' rev='1' type=0 removable=0 virtio-scsi blksize=512 sectors=4194304 = 2048 MiB drive 0x000f3050: PCHS=0/0/0 translation=lba LCHS=520/128/63 s=4194304 Booting from Hard Disk 0... early console in decompress_kernel input_data: 0x00000000039be26e input_len: 0x0000000001424c0d 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 4.4.109-g8cbe01c (syzkaller@ci) (gcc version 7.1.1 20170620 (GCC) ) #10 SMP PREEMPT Tue Jan 2 20:37:39 UTC 2018 [ 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 1208553520 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 4.4.109-g8cbe01c #10 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 699a53587aa1a1d8 ffffffff84207ce8 ffffffff81d0289d [ 0.000000] ffffea0000047ce0 ffffea0000047ce0 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d20 ffffffff814fad79 ffffea0000047ce0 [ 0.000000] Call Trace: [ 0.000000] [] dump_stack+0xc1/0x124 [ 0.000000] [] print_address_description+0x189/0x260 [ 0.000000] [] kasan_report+0x285/0x370 [ 0.000000] [] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] free_all_bootmem+0xf2/0x24d [ 0.000000] [] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [] ? dmar_table_detect+0x60/0x60 [ 0.000000] [] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [] mem_init+0x13/0x74 [ 0.000000] [] start_kernel+0x31d/0x6e9 [ 0.000000] [] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [] x86_64_start_kernel+0x140/0x163 [ 0.000000] [ 0.000000] [ 0.000000] Memory state around the buggy address: [ 0.000000] ffffea0000047b80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ffffea0000047c00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] >ffffea0000047c80: 00 00 00 00 00 00 f1 f1 f1 f1 00 00 f2 f2 00 00 [ 0.000000] ^ [ 0.000000] ffffea0000047d00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ffffea0000047d80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ================================================================== [ 0.000000] Disabling lock debugging due to kernel taint [ 0.000000] Kernel panic - not syncing: panic_on_warn set ... [ 0.000000] [ 0.000000] CPU: 0 PID: 0 Comm: swapper Tainted: G B 4.4.109-g8cbe01c #10 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 699a53587aa1a1d8 ffffffff84207c40 ffffffff81d0289d [ 0.000000] ffffffff83fb3615 ffffffff84207d18 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d08 ffffffff814176ca 0000000041b58ab3 [ 0.000000] Call Trace: [ 0.000000] [] dump_stack+0xc1/0x124 [ 0.000000] [] panic+0x1aa/0x388 [ 0.000000] [] ? percpu_up_read.constprop.45+0xe1/0xe1 [ 0.000000] [] kasan_end_report+0x50/0x50 [ 0.000000] [] kasan_report+0x15c/0x370 [ 0.000000] [] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] free_all_bootmem+0xf2/0x24d [ 0.000000] [] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [] ? dmar_table_detect+0x60/0x60 [ 0.000000] [] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [] mem_init+0x13/0x74 [ 0.000000] [] start_kernel+0x31d/0x6e9 [ 0.000000] [] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [] x86_64_start_kernel+0x140/0x163 [ 0.000000] Rebooting in 86400 seconds.. [ 0.000000] ACPI MEMORY or I/O RESET_REG. SeaBIOS (version 1.8.2-20171012_061934-google) Total RAM Size = 0x00000001e0000000 = 7680 MiB CPUs found: 2 Max CPUs supported: 2 found virtio-scsi at 0:3 virtio-scsi vendor='Google' product='PersistentDisk' rev='1' type=0 removable=0 virtio-scsi blksize=512 sectors=4194304 = 2048 MiB drive 0x000f3050: PCHS=0/0/0 translation=lba LCHS=520/128/63 s=4194304 Booting from Hard Disk 0... early console in decompress_kernel input_data: 0x00000000039be26e input_len: 0x0000000001424c0d 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 4.4.109-g8cbe01c (syzkaller@ci) (gcc version 7.1.1 20170620 (GCC) ) #10 SMP PREEMPT Tue Jan 2 20:37:39 UTC 2018 [ 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 1331711282 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 4.4.109-g8cbe01c #10 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 7ab3bafa8bbb097a ffffffff84207ce8 ffffffff81d0289d [ 0.000000] ffffea0000047ce0 ffffea0000047ce0 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d20 ffffffff814fad79 ffffea0000047ce0 [ 0.000000] Call Trace: [ 0.000000] [] dump_stack+0xc1/0x124 [ 0.000000] [] print_address_description+0x189/0x260 [ 0.000000] [] kasan_report+0x285/0x370 [ 0.000000] [] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] free_all_bootmem+0xf2/0x24d [ 0.000000] [] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [] ? dmar_table_detect+0x60/0x60 [ 0.000000] [] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [] mem_init+0x13/0x74 [ 0.000000] [] start_kernel+0x31d/0x6e9 [ 0.000000] [] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [] x86_64_start_kernel+0x140/0x163 [ 0.000000] [ 0.000000] [ 0.000000] Memory state around the buggy address: [ 0.000000] ffffea0000047b80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ffffea0000047c00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] >ffffea0000047c80: 00 00 00 00 00 00 f1 f1 f1 f1 00 00 f2 f2 00 00 [ 0.000000] ^ [ 0.000000] ffffea0000047d00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ffffea0000047d80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ================================================================== [ 0.000000] Disabling lock debugging due to kernel taint [ 0.000000] Kernel panic - not syncing: panic_on_warn set ... [ 0.000000] [ 0.000000] CPU: 0 PID: 0 Comm: swapper Tainted: G B 4.4.109-g8cbe01c #10 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 7ab3bafa8bbb097a ffffffff84207c40 ffffffff81d0289d [ 0.000000] ffffffff83fb3615 ffffffff84207d18 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d08 ffffffff814176ca 0000000041b58ab3 [ 0.000000] Call Trace: [ 0.000000] [] dump_stack+0xc1/0x124 [ 0.000000] [] panic+0x1aa/0x388 [ 0.000000] [] ? percpu_up_read.constprop.45+0xe1/0xe1 [ 0.000000] [] kasan_end_report+0x50/0x50 [ 0.000000] [] kasan_report+0x15c/0x370 [ 0.000000] [] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] free_all_bootmem+0xf2/0x24d [ 0.000000] [] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [] ? dmar_table_detect+0x60/0x60 [ 0.000000] [] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [] mem_init+0x13/0x74 [ 0.000000] [] start_kernel+0x31d/0x6e9 [ 0.000000] [] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [] x86_64_start_kernel+0x140/0x163 [ 0.000000] Rebooting in 86400 seconds.. [ 0.000000] ACPI MEMORY or I/O RESET_REG. SeaBIOS (version 1.8.2-20171012_061934-google) Total RAM Size = 0x00000001e0000000 = 7680 MiB CPUs found: 2 Max CPUs supported: 2 found virtio-scsi at 0:3 virtio-scsi vendor='Google' product='PersistentDisk' rev='1' type=0 removable=0 virtio-scsi blksize=512 sectors=4194304 = 2048 MiB drive 0x000f3050: PCHS=0/0/0 translation=lba LCHS=520/128/63 s=4194304 Booting from Hard Disk 0... early console in decompress_kernel input_data: 0x00000000039be26e input_len: 0x0000000001424c0d 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 4.4.109-g8cbe01c (syzkaller@ci) (gcc version 7.1.1 20170620 (GCC) ) #10 SMP PREEMPT Tue Jan 2 20:37:39 UTC 2018 [ 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 1330295147 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 4.4.109-g8cbe01c #10 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 7a68d47c8b7022fc ffffffff84207ce8 ffffffff81d0289d [ 0.000000] ffffea0000047ce0 ffffea0000047ce0 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d20 ffffffff814fad79 ffffea0000047ce0 [ 0.000000] Call Trace: [ 0.000000] [] dump_stack+0xc1/0x124 [ 0.000000] [] print_address_description+0x189/0x260 [ 0.000000] [] kasan_report+0x285/0x370 [ 0.000000] [] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] free_all_bootmem+0xf2/0x24d [ 0.000000] [] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [] ? dmar_table_detect+0x60/0x60 [ 0.000000] [] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [] mem_init+0x13/0x74 [ 0.000000] [] start_kernel+0x31d/0x6e9 [ 0.000000] [] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [] x86_64_start_kernel+0x140/0x163 [ 0.000000] [ 0.000000] [ 0.000000] Memory state around the buggy address: [ 0.000000] ffffea0000047b80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ffffea0000047c00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] >ffffea0000047c80: 00 00 00 00 00 00 f1 f1 f1 f1 00 00 f2 f2 00 00 [ 0.000000] ^ [ 0.000000] ffffea0000047d00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ffffea0000047d80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ================================================================== [ 0.000000] Disabling lock debugging due to kernel taint [ 0.000000] Kernel panic - not syncing: panic_on_warn set ... [ 0.000000] [ 0.000000] CPU: 0 PID: 0 Comm: swapper Tainted: G B 4.4.109-g8cbe01c #10 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 7a68d47c8b7022fc ffffffff84207c40 ffffffff81d0289d [ 0.000000] ffffffff83fb3615 ffffffff84207d18 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d08 ffffffff814176ca 0000000041b58ab3 [ 0.000000] Call Trace: [ 0.000000] [] dump_stack+0xc1/0x124 [ 0.000000] [] panic+0x1aa/0x388 [ 0.000000] [] ? percpu_up_read.constprop.45+0xe1/0xe1 [ 0.000000] [] kasan_end_report+0x50/0x50 [ 0.000000] [] kasan_report+0x15c/0x370 [ 0.000000] [] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] free_all_bootmem+0xf2/0x24d [ 0.000000] [] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [] ? dmar_table_detect+0x60/0x60 [ 0.000000] [] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [] mem_init+0x13/0x74 [ 0.000000] [] start_kernel+0x31d/0x6e9 [ 0.000000] [] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [] x86_64_start_kernel+0x140/0x163 [ 0.000000] Rebooting in 86400 seconds.. [ 0.000000] ACPI MEMORY or I/O RESET_REG. SeaBIOS (version 1.8.2-20171012_061934-google) Total RAM Size = 0x00000001e0000000 = 7680 MiB CPUs found: 2 Max CPUs supported: 2 found virtio-scsi at 0:3 virtio-scsi vendor='Google' product='PersistentDisk' rev='1' type=0 removable=0 virtio-scsi blksize=512 sectors=4194304 = 2048 MiB drive 0x000f3050: PCHS=0/0/0 translation=lba LCHS=520/128/63 s=4194304 Booting from Hard Disk 0... early console in decompress_kernel input_data: 0x00000000039be26e input_len: 0x0000000001424c0d 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 4.4.109-g8cbe01c (syzkaller@ci) (gcc version 7.1.1 20170620 (GCC) ) #10 SMP PREEMPT Tue Jan 2 20:37:39 UTC 2018 [ 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 1181942855 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 4.4.109-g8cbe01c #10 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 66135d9d771aac1d ffffffff84207ce8 ffffffff81d0289d [ 0.000000] ffffea0000047ce0 ffffea0000047ce0 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d20 ffffffff814fad79 ffffea0000047ce0 [ 0.000000] Call Trace: [ 0.000000] [] dump_stack+0xc1/0x124 [ 0.000000] [] print_address_description+0x189/0x260 [ 0.000000] [] kasan_report+0x285/0x370 [ 0.000000] [] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] free_all_bootmem+0xf2/0x24d [ 0.000000] [] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [] ? dmar_table_detect+0x60/0x60 [ 0.000000] [] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [] mem_init+0x13/0x74 [ 0.000000] [] start_kernel+0x31d/0x6e9 [ 0.000000] [] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [] x86_64_start_kernel+0x140/0x163 [ 0.000000] [ 0.000000] [ 0.000000] Memory state around the buggy address: [ 0.000000] ffffea0000047b80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ffffea0000047c00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] >ffffea0000047c80: 00 00 00 00 00 00 f1 f1 f1 f1 00 00 f2 f2 00 00 [ 0.000000] ^ [ 0.000000] ffffea0000047d00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ffffea0000047d80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ================================================================== [ 0.000000] Disabling lock debugging due to kernel taint [ 0.000000] Kernel panic - not syncing: panic_on_warn set ... [ 0.000000] [ 0.000000] CPU: 0 PID: 0 Comm: swapper Tainted: G B 4.4.109-g8cbe01c #10 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 66135d9d771aac1d ffffffff84207c40 ffffffff81d0289d [ 0.000000] ffffffff83fb3615 ffffffff84207d18 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d08 ffffffff814176ca 0000000041b58ab3 [ 0.000000] Call Trace: [ 0.000000] [] dump_stack+0xc1/0x124 [ 0.000000] [] panic+0x1aa/0x388 [ 0.000000] [] ? percpu_up_read.constprop.45+0xe1/0xe1 [ 0.000000] [] kasan_end_report+0x50/0x50 [ 0.000000] [] kasan_report+0x15c/0x370 [ 0.000000] [] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] free_all_bootmem+0xf2/0x24d [ 0.000000] [] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [] ? dmar_table_detect+0x60/0x60 [ 0.000000] [] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [] mem_init+0x13/0x74 [ 0.000000] [] start_kernel+0x31d/0x6e9 [ 0.000000] [] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [] x86_64_start_kernel+0x140/0x163 [ 0.000000] Rebooting in 86400 seconds.. [ 0.000000] ACPI MEMORY or I/O RESET_REG. SeaBIOS (version 1.8.2-20171012_061934-google) Total RAM Size = 0x00000001e0000000 = 7680 MiB CPUs found: 2 Max CPUs supported: 2 found virtio-scsi at 0:3 virtio-scsi vendor='Google' product='PersistentDisk' rev='1' type=0 removable=0 virtio-scsi blksize=512 sectors=4194304 = 2048 MiB drive 0x000f3050: PCHS=0/0/0 translation=lba LCHS=520/128/63 s=4194304 Booting from Hard Disk 0... early console in decompress_kernel input_data: 0x00000000039be26e input_len: 0x0000000001424c0d 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 4.4.109-g8cbe01c (syzkaller@ci) (gcc version 7.1.1 20170620 (GCC) ) #10 SMP PREEMPT Tue Jan 2 20:37:39 UTC 2018 [ 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 1201707624 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 4.4.109-g8cbe01c #10 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 6898c2b879a01138 ffffffff84207ce8 ffffffff81d0289d [ 0.000000] ffffea0000047ce0 ffffea0000047ce0 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d20 ffffffff814fad79 ffffea0000047ce0 [ 0.000000] Call Trace: [ 0.000000] [] dump_stack+0xc1/0x124 [ 0.000000] [] print_address_description+0x189/0x260 [ 0.000000] [] kasan_report+0x285/0x370 [ 0.000000] [] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] free_all_bootmem+0xf2/0x24d [ 0.000000] [] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [] ? dmar_table_detect+0x60/0x60 [ 0.000000] [] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [] mem_init+0x13/0x74 [ 0.000000] [] start_kernel+0x31d/0x6e9 [ 0.000000] [] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [] x86_64_start_kernel+0x140/0x163 [ 0.000000] [ 0.000000] [ 0.000000] Memory state around the buggy address: [ 0.000000] ffffea0000047b80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ffffea0000047c00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] >ffffea0000047c80: 00 00 00 00 00 00 f1 f1 f1 f1 00 00 f2 f2 00 00 [ 0.000000] ^ [ 0.000000] ffffea0000047d00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ffffea0000047d80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ================================================================== [ 0.000000] Disabling lock debugging due to kernel taint [ 0.000000] Kernel panic - not syncing: panic_on_warn set ... [ 0.000000] [ 0.000000] CPU: 0 PID: 0 Comm: swapper Tainted: G B 4.4.109-g8cbe01c #10 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 6898c2b879a01138 ffffffff84207c40 ffffffff81d0289d [ 0.000000] ffffffff83fb3615 ffffffff84207d18 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d08 ffffffff814176ca 0000000041b58ab3 [ 0.000000] Call Trace: [ 0.000000] [] dump_stack+0xc1/0x124 [ 0.000000] [] panic+0x1aa/0x388 [ 0.000000] [] ? percpu_up_read.constprop.45+0xe1/0xe1 [ 0.000000] [] kasan_end_report+0x50/0x50 [ 0.000000] [] kasan_report+0x15c/0x370 [ 0.000000] [] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] free_all_bootmem+0xf2/0x24d [ 0.000000] [] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [] ? dmar_table_detect+0x60/0x60 [ 0.000000] [] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [] mem_init+0x13/0x74 [ 0.000000] [] start_kernel+0x31d/0x6e9 [ 0.000000] [] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [] x86_64_start_kernel+0x140/0x163 [ 0.000000] Rebooting in 86400 seconds.. [ 0.000000] ACPI MEMORY or I/O RESET_REG. SeaBIOS (version 1.8.2-20171012_061934-google) Total RAM Size = 0x00000001e0000000 = 7680 MiB CPUs found: 2 Max CPUs supported: 2 found virtio-scsi at 0:3 virtio-scsi vendor='Google' product='PersistentDisk' rev='1' type=0 removable=0 virtio-scsi blksize=512 sectors=4194304 = 2048 MiB drive 0x000f3050: PCHS=0/0/0 translation=lba LCHS=520/128/63 s=4194304 Booting from Hard Disk 0... early console in decompress_kernel input_data: 0x00000000039be26e input_len: 0x0000000001424c0d 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 4.4.109-g8cbe01c (syzkaller@ci) (gcc version 7.1.1 20170620 (GCC) ) #10 SMP PREEMPT Tue Jan 2 20:37:39 UTC 2018 [ 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 1288876488 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 4.4.109-g8cbe01c #10 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 74bfec6785c73ae7 ffffffff84207ce8 ffffffff81d0289d [ 0.000000] ffffea0000047ce0 ffffea0000047ce0 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d20 ffffffff814fad79 ffffea0000047ce0 [ 0.000000] Call Trace: [ 0.000000] [] dump_stack+0xc1/0x124 [ 0.000000] [] print_address_description+0x189/0x260 [ 0.000000] [] kasan_report+0x285/0x370 [ 0.000000] [] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] free_all_bootmem+0xf2/0x24d [ 0.000000] [] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [] ? dmar_table_detect+0x60/0x60 [ 0.000000] [] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [] mem_init+0x13/0x74 [ 0.000000] [] start_kernel+0x31d/0x6e9 [ 0.000000] [] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [] x86_64_start_kernel+0x140/0x163 [ 0.000000] [ 0.000000] [ 0.000000] Memory state around the buggy address: [ 0.000000] ffffea0000047b80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ffffea0000047c00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] >ffffea0000047c80: 00 00 00 00 00 00 f1 f1 f1 f1 00 00 f2 f2 00 00 [ 0.000000] ^ [ 0.000000] ffffea0000047d00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ffffea0000047d80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ================================================================== [ 0.000000] Disabling lock debugging due to kernel taint [ 0.000000] Kernel panic - not syncing: panic_on_warn set ... [ 0.000000] [ 0.000000] CPU: 0 PID: 0 Comm: swapper Tainted: G B 4.4.109-g8cbe01c #10 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 74bfec6785c73ae7 ffffffff84207c40 ffffffff81d0289d [ 0.000000] ffffffff83fb3615 ffffffff84207d18 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d08 ffffffff814176ca 0000000041b58ab3 [ 0.000000] Call Trace: [ 0.000000] [] dump_stack+0xc1/0x124 [ 0.000000] [] panic+0x1aa/0x388 [ 0.000000] [] ? percpu_up_read.constprop.45+0xe1/0xe1 [ 0.000000] [] kasan_end_report+0x50/0x50 [ 0.000000] [] kasan_report+0x15c/0x370 [ 0.000000] [] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] free_all_bootmem+0xf2/0x24d [ 0.000000] [] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [] ? dmar_table_detect+0x60/0x60 [ 0.000000] [] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [] mem_init+0x13/0x74 [ 0.000000] [] start_kernel+0x31d/0x6e9 [ 0.000000] [] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [] x86_64_start_kernel+0x140/0x163 [ 0.000000] Rebooting in 86400 seconds.. [ 0.000000] ACPI MEMORY or I/O RESET_REG. SeaBIOS (version 1.8.2-20171012_061934-google) Total RAM Size = 0x00000001e0000000 = 7680 MiB CPUs found: 2 Max CPUs supported: 2 found virtio-scsi at 0:3 virtio-scsi vendor='Google' product='PersistentDisk' rev='1' type=0 removable=0 virtio-scsi blksize=512 sectors=4194304 = 2048 MiB drive 0x000f3050: PCHS=0/0/0 translation=lba LCHS=520/128/63 s=4194304 Booting from Hard Disk 0... early console in decompress_kernel input_data: 0x00000000039be26e input_len: 0x0000000001424c0d 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 4.4.109-g8cbe01c (syzkaller@ci) (gcc version 7.1.1 20170620 (GCC) ) #10 SMP PREEMPT Tue Jan 2 20:37:39 UTC 2018 [ 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 1326897199 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 4.4.109-g8cbe01c #10 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 79fe2a058b057885 ffffffff84207ce8 ffffffff81d0289d [ 0.000000] ffffea0000047ce0 ffffea0000047ce0 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d20 ffffffff814fad79 ffffea0000047ce0 [ 0.000000] Call Trace: [ 0.000000] [] dump_stack+0xc1/0x124 [ 0.000000] [] print_address_description+0x189/0x260 [ 0.000000] [] kasan_report+0x285/0x370 [ 0.000000] [] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] free_all_bootmem+0xf2/0x24d [ 0.000000] [] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [] ? dmar_table_detect+0x60/0x60 [ 0.000000] [] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [] mem_init+0x13/0x74 [ 0.000000] [] start_kernel+0x31d/0x6e9 [ 0.000000] [] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [] x86_64_start_kernel+0x140/0x163 [ 0.000000] [ 0.000000] [ 0.000000] Memory state around the buggy address: [ 0.000000] ffffea0000047b80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ffffea0000047c00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] >ffffea0000047c80: 00 00 00 00 00 00 f1 f1 f1 f1 00 00 f2 f2 00 00 [ 0.000000] ^ [ 0.000000] ffffea0000047d00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ffffea0000047d80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ================================================================== [ 0.000000] Disabling lock debugging due to kernel taint [ 0.000000] Kernel panic - not syncing: panic_on_warn set ... [ 0.000000] [ 0.000000] CPU: 0 PID: 0 Comm: swapper Tainted: G B 4.4.109-g8cbe01c #10 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 79fe2a058b057885 ffffffff84207c40 ffffffff81d0289d [ 0.000000] ffffffff83fb3615 ffffffff84207d18 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d08 ffffffff814176ca 0000000041b58ab3 [ 0.000000] Call Trace: [ 0.000000] [] dump_stack+0xc1/0x124 [ 0.000000] [] panic+0x1aa/0x388 [ 0.000000] [] ? percpu_up_read.constprop.45+0xe1/0xe1 [ 0.000000] [] kasan_end_report+0x50/0x50 [ 0.000000] [] kasan_report+0x15c/0x370 [ 0.000000] [] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] free_all_bootmem+0xf2/0x24d [ 0.000000] [] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [] ? dmar_table_detect+0x60/0x60 [ 0.000000] [] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [] mem_init+0x13/0x74 [ 0.000000] [] start_kernel+0x31d/0x6e9 [ 0.000000] [] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [] x86_64_start_kernel+0x140/0x163 [ 0.000000] Rebooting in 86400 seconds.. [ 0.000000] ACPI MEMORY or I/O RESET_REG. SeaBIOS (version 1.8.2-20171012_061934-google) Total RAM Size = 0x00000001e0000000 = 7680 MiB CPUs found: 2 Max CPUs supported: 2 found virtio-scsi at 0:3 virtio-scsi vendor='Google' product='PersistentDisk' rev='1' type=0 removable=0 virtio-scsi blksize=512 sectors=4194304 = 2048 MiB drive 0x000f3050: PCHS=0/0/0 translation=lba LCHS=520/128/63 s=4194304 Booting from Hard Disk 0... early console in decompress_kernel input_data: 0x00000000039be26e input_len: 0x0000000001424c0d 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 4.4.109-g8cbe01c (syzkaller@ci) (gcc version 7.1.1 20170620 (GCC) ) #10 SMP PREEMPT Tue Jan 2 20:37:39 UTC 2018 [ 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 1190404365 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 4.4.109-g8cbe01c #10 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 6753156a785a63ea ffffffff84207ce8 ffffffff81d0289d [ 0.000000] ffffea0000047ce0 ffffea0000047ce0 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d20 ffffffff814fad79 ffffea0000047ce0 [ 0.000000] Call Trace: [ 0.000000] [] dump_stack+0xc1/0x124 [ 0.000000] [] print_address_description+0x189/0x260 [ 0.000000] [] kasan_report+0x285/0x370 [ 0.000000] [] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] free_all_bootmem+0xf2/0x24d [ 0.000000] [] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [] ? dmar_table_detect+0x60/0x60 [ 0.000000] [] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [] mem_init+0x13/0x74 [ 0.000000] [] start_kernel+0x31d/0x6e9 [ 0.000000] [] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [] x86_64_start_kernel+0x140/0x163 [ 0.000000] [ 0.000000] [ 0.000000] Memory state around the buggy address: [ 0.000000] ffffea0000047b80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ffffea0000047c00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] >ffffea0000047c80: 00 00 00 00 00 00 f1 f1 f1 f1 00 00 f2 f2 00 00 [ 0.000000] ^ [ 0.000000] ffffea0000047d00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ffffea0000047d80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ================================================================== [ 0.000000] Disabling lock debugging due to kernel taint [ 0.000000] Kernel panic - not syncing: panic_on_warn set ... [ 0.000000] [ 0.000000] CPU: 0 PID: 0 Comm: swapper Tainted: G B 4.4.109-g8cbe01c #10 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 6753156a785a63ea ffffffff84207c40 ffffffff81d0289d [ 0.000000] ffffffff83fb3615 ffffffff84207d18 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d08 ffffffff814176ca 0000000041b58ab3 [ 0.000000] Call Trace: [ 0.000000] [] dump_stack+0xc1/0x124 [ 0.000000] [] panic+0x1aa/0x388 [ 0.000000] [] ? percpu_up_read.constprop.45+0xe1/0xe1 [ 0.000000] [] kasan_end_report+0x50/0x50 [ 0.000000] [] kasan_report+0x15c/0x370 [ 0.000000] [] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] free_all_bootmem+0xf2/0x24d [ 0.000000] [] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [] ? dmar_table_detect+0x60/0x60 [ 0.000000] [] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [] mem_init+0x13/0x74 [ 0.000000] [] start_kernel+0x31d/0x6e9 [ 0.000000] [] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [] x86_64_start_kernel+0x140/0x163 [ 0.000000] Rebooting in 86400 seconds.. [ 0.000000] ACPI MEMORY or I/O RESET_REG. SeaBIOS (version 1.8.2-20171012_061934-google) Total RAM Size = 0x00000001e0000000 = 7680 MiB CPUs found: 2 Max CPUs supported: 2 found virtio-scsi at 0:3 virtio-scsi vendor='Google' product='PersistentDisk' rev='1' type=0 removable=0 virtio-scsi blksize=512 sectors=4194304 = 2048 MiB drive 0x000f3050: PCHS=0/0/0 translation=lba LCHS=520/128/63 s=4194304 Booting from Hard Disk 0... early console in decompress_kernel input_data: 0x00000000039be26e input_len: 0x0000000001424c0d 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 4.4.109-g8cbe01c (syzkaller@ci) (gcc version 7.1.1 20170620 (GCC) ) #10 SMP PREEMPT Tue Jan 2 20:37:39 UTC 2018 [ 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 1375188681 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 4.4.109-g8cbe01c #10 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 8094c477919c12f7 ffffffff84207ce8 ffffffff81d0289d [ 0.000000] ffffea0000047ce0 ffffea0000047ce0 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d20 ffffffff814fad79 ffffea0000047ce0 [ 0.000000] Call Trace: [ 0.000000] [] dump_stack+0xc1/0x124 [ 0.000000] [] print_address_description+0x189/0x260 [ 0.000000] [] kasan_report+0x285/0x370 [ 0.000000] [] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] free_all_bootmem+0xf2/0x24d [ 0.000000] [] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [] ? dmar_table_detect+0x60/0x60 [ 0.000000] [] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [] mem_init+0x13/0x74 [ 0.000000] [] start_kernel+0x31d/0x6e9 [ 0.000000] [] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [] x86_64_start_kernel+0x140/0x163 [ 0.000000] [ 0.000000] [ 0.000000] Memory state around the buggy address: [ 0.000000] ffffea0000047b80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ffffea0000047c00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] >ffffea0000047c80: 00 00 00 00 00 00 f1 f1 f1 f1 00 00 f2 f2 00 00 [ 0.000000] ^ [ 0.000000] ffffea0000047d00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ffffea0000047d80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ================================================================== [ 0.000000] Disabling lock debugging due to kernel taint [ 0.000000] Kernel panic - not syncing: panic_on_warn set ... [ 0.000000] [ 0.000000] CPU: 0 PID: 0 Comm: swapper Tainted: G B 4.4.109-g8cbe01c #10 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 8094c477919c12f7 ffffffff84207c40 ffffffff81d0289d [ 0.000000] ffffffff83fb3615 ffffffff84207d18 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d08 ffffffff814176ca 0000000041b58ab3 [ 0.000000] Call Trace: [ 0.000000] [] dump_stack+0xc1/0x124 [ 0.000000] [] panic+0x1aa/0x388 [ 0.000000] [] ? percpu_up_read.constprop.45+0xe1/0xe1 [ 0.000000] [] kasan_end_report+0x50/0x50 [ 0.000000] [] kasan_report+0x15c/0x370 [ 0.000000] [] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] free_all_bootmem+0xf2/0x24d [ 0.000000] [] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [] ? dmar_table_detect+0x60/0x60 [ 0.000000] [] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [] mem_init+0x13/0x74 [ 0.000000] [] start_kernel+0x31d/0x6e9 [ 0.000000] [] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [] x86_64_start_kernel+0x140/0x163 [ 0.000000] Rebooting in 86400 seconds.. [ 0.000000] ACPI MEMORY or I/O RESET_REG. SeaBIOS (version 1.8.2-20171012_061934-google) Total RAM Size = 0x00000001e0000000 = 7680 MiB CPUs found: 2 Max CPUs supported: 2 found virtio-scsi at 0:3 virtio-scsi vendor='Google' product='PersistentDisk' rev='1' type=0 removable=0 virtio-scsi blksize=512 sectors=4194304 = 2048 MiB drive 0x000f3050: PCHS=0/0/0 translation=lba LCHS=520/128/63 s=4194304 Booting from Hard Disk 0... early console in decompress_kernel input_data: 0x00000000039be26e input_len: 0x0000000001424c0d 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 4.4.109-g8cbe01c (syzkaller@ci) (gcc version 7.1.1 20170620 (GCC) ) #10 SMP PREEMPT Tue Jan 2 20:37:39 UTC 2018 [ 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 1236815516 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 4.4.109-g8cbe01c #10 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 6d9557637e9ca5e3 ffffffff84207ce8 ffffffff81d0289d [ 0.000000] ffffea0000047ce0 ffffea0000047ce0 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d20 ffffffff814fad79 ffffea0000047ce0 [ 0.000000] Call Trace: [ 0.000000] [] dump_stack+0xc1/0x124 [ 0.000000] [] print_address_description+0x189/0x260 [ 0.000000] [] kasan_report+0x285/0x370 [ 0.000000] [] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] free_all_bootmem+0xf2/0x24d [ 0.000000] [] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [] ? dmar_table_detect+0x60/0x60 [ 0.000000] [] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [] mem_init+0x13/0x74 [ 0.000000] [] start_kernel+0x31d/0x6e9 [ 0.000000] [] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [] x86_64_start_kernel+0x140/0x163 [ 0.000000] [ 0.000000] [ 0.000000] Memory state around the buggy address: [ 0.000000] ffffea0000047b80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ffffea0000047c00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] >ffffea0000047c80: 00 00 00 00 00 00 f1 f1 f1 f1 00 00 f2 f2 00 00 [ 0.000000] ^ [ 0.000000] ffffea0000047d00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ffffea0000047d80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ================================================================== [ 0.000000] Disabling lock debugging due to kernel taint [ 0.000000] Kernel panic - not syncing: panic_on_warn set ... [ 0.000000] [ 0.000000] CPU: 0 PID: 0 Comm: swapper Tainted: G B 4.4.109-g8cbe01c #10 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 6d9557637e9ca5e3 ffffffff84207c40 ffffffff81d0289d [ 0.000000] ffffffff83fb3615 ffffffff84207d18 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d08 ffffffff814176ca 0000000041b58ab3 [ 0.000000] Call Trace: [ 0.000000] [] dump_stack+0xc1/0x124 [ 0.000000] [] panic+0x1aa/0x388 [ 0.000000] [] ? percpu_up_read.constprop.45+0xe1/0xe1 [ 0.000000] [] kasan_end_report+0x50/0x50 [ 0.000000] [] kasan_report+0x15c/0x370 [ 0.000000] [] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] free_all_bootmem+0xf2/0x24d [ 0.000000] [] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [] ? dmar_table_detect+0x60/0x60 [ 0.000000] [] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [] mem_init+0x13/0x74 [ 0.000000] [] start_kernel+0x31d/0x6e9 [ 0.000000] [] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [] x86_64_start_kernel+0x140/0x163 [ 0.000000] Rebooting in 86400 seconds.. [ 0.000000] ACPI MEMORY or I/O RESET_REG. SeaBIOS (version 1.8.2-20171012_061934-google) Total RAM Size = 0x00000001e0000000 = 7680 MiB CPUs found: 2 Max CPUs supported: 2 found virtio-scsi at 0:3 virtio-scsi vendor='Google' product='PersistentDisk' rev='1' type=0 removable=0 virtio-scsi blksize=512 sectors=4194304 = 2048 MiB drive 0x000f3050: PCHS=0/0/0 translation=lba LCHS=520/128/63 s=4194304 Booting from Hard Disk 0... early console in decompress_kernel input_data: 0x00000000039be26e input_len: 0x0000000001424c0d 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 4.4.109-g8cbe01c (syzkaller@ci) (gcc version 7.1.1 20170620 (GCC) ) #10 SMP PREEMPT Tue Jan 2 20:37:39 UTC 2018 [ 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 1216878688 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 4.4.109-g8cbe01c #10 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 6ae8c0977bf00f17 ffffffff84207ce8 ffffffff81d0289d [ 0.000000] ffffea0000047ce0 ffffea0000047ce0 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d20 ffffffff814fad79 ffffea0000047ce0 [ 0.000000] Call Trace: [ 0.000000] [] dump_stack+0xc1/0x124 [ 0.000000] [] print_address_description+0x189/0x260 [ 0.000000] [] kasan_report+0x285/0x370 [ 0.000000] [] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] free_all_bootmem+0xf2/0x24d [ 0.000000] [] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [] ? dmar_table_detect+0x60/0x60 [ 0.000000] [] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [] mem_init+0x13/0x74 [ 0.000000] [] start_kernel+0x31d/0x6e9 [ 0.000000] [] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [] x86_64_start_kernel+0x140/0x163 [ 0.000000] [ 0.000000] [ 0.000000] Memory state around the buggy address: [ 0.000000] ffffea0000047b80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ffffea0000047c00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] >ffffea0000047c80: 00 00 00 00 00 00 f1 f1 f1 f1 00 00 f2 f2 00 00 [ 0.000000] ^ [ 0.000000] ffffea0000047d00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ffffea0000047d80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ================================================================== [ 0.000000] Disabling lock debugging due to kernel taint [ 0.000000] Kernel panic - not syncing: panic_on_warn set ... [ 0.000000] [ 0.000000] CPU: 0 PID: 0 Comm: swapper Tainted: G B 4.4.109-g8cbe01c #10 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 6ae8c0977bf00f17 ffffffff84207c40 ffffffff81d0289d [ 0.000000] ffffffff83fb3615 ffffffff84207d18 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d08 ffffffff814176ca 0000000041b58ab3 [ 0.000000] Call Trace: [ 0.000000] [] dump_stack+0xc1/0x124 [ 0.000000] [] panic+0x1aa/0x388 [ 0.000000] [] ? percpu_up_read.constprop.45+0xe1/0xe1 [ 0.000000] [] kasan_end_report+0x50/0x50 [ 0.000000] [] kasan_report+0x15c/0x370 [ 0.000000] [] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] free_all_bootmem+0xf2/0x24d [ 0.000000] [] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [] ? dmar_table_detect+0x60/0x60 [ 0.000000] [] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [] mem_init+0x13/0x74 [ 0.000000] [] start_kernel+0x31d/0x6e9 [ 0.000000] [] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [] x86_64_start_kernel+0x140/0x163 [ 0.000000] Rebooting in 86400 seconds.. [ 0.000000] ACPI MEMORY or I/O RESET_REG. SeaBIOS (version 1.8.2-20171012_061934-google) Total RAM Size = 0x00000001e0000000 = 7680 MiB CPUs found: 2 Max CPUs supported: 2 found virtio-scsi at 0:3 virtio-scsi vendor='Google' product='PersistentDisk' rev='1' type=0 removable=0 virtio-scsi blksize=512 sectors=4194304 = 2048 MiB drive 0x000f3050: PCHS=0/0/0 translation=lba LCHS=520/128/63 s=4194304 Booting from Hard Disk 0... early console in decompress_kernel input_data: 0x00000000039be26e input_len: 0x0000000001424c0d 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 4.4.109-g8cbe01c (syzkaller@ci) (gcc version 7.1.1 20170620 (GCC) ) #10 SMP PREEMPT Tue Jan 2 20:37:39 UTC 2018 [ 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 1159222234 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 4.4.109-g8cbe01c #10 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 63182de4741f7c64 ffffffff84207ce8 ffffffff81d0289d [ 0.000000] ffffea0000047ce0 ffffea0000047ce0 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d20 ffffffff814fad79 ffffea0000047ce0 [ 0.000000] Call Trace: [ 0.000000] [] dump_stack+0xc1/0x124 [ 0.000000] [] print_address_description+0x189/0x260 [ 0.000000] [] kasan_report+0x285/0x370 [ 0.000000] [] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] free_all_bootmem+0xf2/0x24d [ 0.000000] [] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [] ? dmar_table_detect+0x60/0x60 [ 0.000000] [] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [] mem_init+0x13/0x74 [ 0.000000] [] start_kernel+0x31d/0x6e9 [ 0.000000] [] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [] x86_64_start_kernel+0x140/0x163 [ 0.000000] [ 0.000000] [ 0.000000] Memory state around the buggy address: [ 0.000000] ffffea0000047b80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ffffea0000047c00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] >ffffea0000047c80: 00 00 00 00 00 00 f1 f1 f1 f1 00 00 f2 f2 00 00 [ 0.000000] ^ [ 0.000000] ffffea0000047d00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ffffea0000047d80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ================================================================== [ 0.000000] Disabling lock debugging due to kernel taint [ 0.000000] Kernel panic - not syncing: panic_on_warn set ... [ 0.000000] [ 0.000000] CPU: 0 PID: 0 Comm: swapper Tainted: G B 4.4.109-g8cbe01c #10 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 63182de4741f7c64 ffffffff84207c40 ffffffff81d0289d [ 0.000000] ffffffff83fb3615 ffffffff84207d18 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d08 ffffffff814176ca 0000000041b58ab3 [ 0.000000] Call Trace: [ 0.000000] [] dump_stack+0xc1/0x124 [ 0.000000] [] panic+0x1aa/0x388 [ 0.000000] [] ? percpu_up_read.constprop.45+0xe1/0xe1 [ 0.000000] [] kasan_end_report+0x50/0x50 [ 0.000000] [] kasan_report+0x15c/0x370 [ 0.000000] [] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] free_all_bootmem+0xf2/0x24d [ 0.000000] [] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [] ? dmar_table_detect+0x60/0x60 [ 0.000000] [] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [] mem_init+0x13/0x74 [ 0.000000] [] start_kernel+0x31d/0x6e9 [ 0.000000] [] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [] x86_64_start_kernel+0x140/0x163 [ 0.000000] Rebooting in 86400 seconds.. [ 0.000000] ACPI MEMORY or I/O RESET_REG. SeaBIOS (version 1.8.2-20171012_061934-google) Total RAM Size = 0x00000001e0000000 = 7680 MiB CPUs found: 2 Max CPUs supported: 2 found virtio-scsi at 0:3 virtio-scsi vendor='Google' product='PersistentDisk' rev='1' type=0 removable=0 virtio-scsi blksize=512 sectors=4194304 = 2048 MiB drive 0x000f3050: PCHS=0/0/0 translation=lba LCHS=520/128/63 s=4194304 Booting from Hard Disk 0... early console in decompress_kernel input_data: 0x00000000039be26e input_len: 0x0000000001424c0d 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 4.4.109-g8cbe01c (syzkaller@ci) (gcc version 7.1.1 20170620 (GCC) ) #10 SMP PREEMPT Tue Jan 2 20:37:39 UTC 2018 [ 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 1193367770 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 4.4.109-g8cbe01c #10 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 67c0d93d78c827bd ffffffff84207ce8 ffffffff81d0289d [ 0.000000] ffffea0000047ce0 ffffea0000047ce0 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d20 ffffffff814fad79 ffffea0000047ce0 [ 0.000000] Call Trace: [ 0.000000] [] dump_stack+0xc1/0x124 [ 0.000000] [] print_address_description+0x189/0x260 [ 0.000000] [] kasan_report+0x285/0x370 [ 0.000000] [] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] free_all_bootmem+0xf2/0x24d [ 0.000000] [] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [] ? dmar_table_detect+0x60/0x60 [ 0.000000] [] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [] mem_init+0x13/0x74 [ 0.000000] [] start_kernel+0x31d/0x6e9 [ 0.000000] [] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [] x86_64_start_kernel+0x140/0x163 [ 0.000000] [ 0.000000] [ 0.000000] Memory state around the buggy address: [ 0.000000] ffffea0000047b80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ffffea0000047c00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] >ffffea0000047c80: 00 00 00 00 00 00 f1 f1 f1 f1 00 00 f2 f2 00 00 [ 0.000000] ^ [ 0.000000] ffffea0000047d00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ffffea0000047d80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ================================================================== [ 0.000000] Disabling lock debugging due to kernel taint [ 0.000000] Kernel panic - not syncing: panic_on_warn set ... [ 0.000000] [ 0.000000] CPU: 0 PID: 0 Comm: swapper Tainted: G B 4.4.109-g8cbe01c #10 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 67c0d93d78c827bd ffffffff84207c40 ffffffff81d0289d [ 0.000000] ffffffff83fb3615 ffffffff84207d18 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d08 ffffffff814176ca 0000000041b58ab3 [ 0.000000] Call Trace: [ 0.000000] [] dump_stack+0xc1/0x124 [ 0.000000] [] panic+0x1aa/0x388 [ 0.000000] [] ? percpu_up_read.constprop.45+0xe1/0xe1 [ 0.000000] [] kasan_end_report+0x50/0x50 [ 0.000000] [] kasan_report+0x15c/0x370 [ 0.000000] [] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] free_all_bootmem+0xf2/0x24d [ 0.000000] [] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [] ? dmar_table_detect+0x60/0x60 [ 0.000000] [] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [] mem_init+0x13/0x74 [ 0.000000] [] start_kernel+0x31d/0x6e9 [ 0.000000] [] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [] x86_64_start_kernel+0x140/0x163 [ 0.000000] Rebooting in 86400 seconds.. [ 0.000000] ACPI MEMORY or I/O RESET_REG. [ 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: 0x0000000001424c0d 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 4.4.109-g8cbe01c (syzkaller@ci) (gcc version 7.1.1 20170620 (GCC) ) #10 SMP PREEMPT Tue Jan 2 20:37:39 UTC 2018 [ 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 1193142457 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 4.4.109-g8cbe01c #10 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 6783b2f9788b0179 ffffffff84207ce8 ffffffff81d0289d [ 0.000000] ffffea0000047ce0 ffffea0000047ce0 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d20 ffffffff814fad79 ffffea0000047ce0 [ 0.000000] Call Trace: [ 0.000000] [] dump_stack+0xc1/0x124 [ 0.000000] [] print_address_description+0x189/0x260 [ 0.000000] [] kasan_report+0x285/0x370 [ 0.000000] [] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] free_all_bootmem+0xf2/0x24d [ 0.000000] [] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [] ? dmar_table_detect+0x60/0x60 [ 0.000000] [] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [] mem_init+0x13/0x74 [ 0.000000] [] start_kernel+0x31d/0x6e9 [ 0.000000] [] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [] x86_64_start_kernel+0x140/0x163 [ 0.000000] [ 0.000000] [ 0.000000] Memory state around the buggy address: [ 0.000000] ffffea0000047b80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ffffea0000047c00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] >ffffea0000047c80: 00 00 00 00 00 00 f1 f1 f1 f1 00 00 f2 f2 00 00 [ 0.000000] ^ [ 0.000000] ffffea0000047d00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ffffea0000047d80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ================================================================== [ 0.000000] Disabling lock debugging due to kernel taint [ 0.000000] Kernel panic - not syncing: panic_on_warn set ... [ 0.000000] [ 0.000000] CPU: 0 PID: 0 Comm: swapper Tainted: G B 4.4.109-g8cbe01c #10 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 6783b2f9788b0179 ffffffff84207c40 ffffffff81d0289d [ 0.000000] ffffffff83fb3615 ffffffff84207d18 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d08 ffffffff814176ca 0000000041b58ab3 [ 0.000000] Call Trace: [ 0.000000] [] dump_stack+0xc1/0x124 [ 0.000000] [] panic+0x1aa/0x388 [ 0.000000] [] ? percpu_up_read.constprop.45+0xe1/0xe1 [ 0.000000] [] kasan_end_report+0x50/0x50 [ 0.000000] [] kasan_report+0x15c/0x370 [ 0.000000] [] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] free_all_bootmem+0xf2/0x24d [ 0.000000] [] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [] ? dmar_table_detect+0x60/0x60 [ 0.000000] [] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [] mem_init+0x13/0x74 [ 0.000000] [] start_kernel+0x31d/0x6e9 [ 0.000000] [] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [] x86_64_start_kernel+0x140/0x163 [ 0.000000] Rebooting in 86400 seconds.. [ 0.000000] ACPI MEMORY or I/O RESET_REG. SeaBIOS (version 1.8.2-20171012_061934-google) Total RAM Size = 0x00000001e0000000 = 7680 MiB CPUs found: 2 Max CPUs supported: 2 found virtio-scsi at 0:3 virtio-scsi vendor='Google' product='PersistentDisk' rev='1' type=0 removable=0 virtio-scsi blksize=512 sectors=4194304 = 2048 MiB drive 0x000f3050: PCHS=0/0/0 translation=lba LCHS=520/128/63 s=4194304 Booting from Hard Disk 0... early console in decompress_kernel input_data: 0x00000000039be26e input_len: 0x0000000001424c0d 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 4.4.109-g8cbe01c (syzkaller@ci) (gcc version 7.1.1 20170620 (GCC) ) #10 SMP PREEMPT Tue Jan 2 20:37:39 UTC 2018 [ 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 1216113956 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 4.4.109-g8cbe01c #10 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 6ab0c6f27bb81572 ffffffff84207ce8 ffffffff81d0289d [ 0.000000] ffffea0000047ce0 ffffea0000047ce0 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d20 ffffffff814fad79 ffffea0000047ce0 [ 0.000000] Call Trace: [ 0.000000] [] dump_stack+0xc1/0x124 [ 0.000000] [] print_address_description+0x189/0x260 [ 0.000000] [] kasan_report+0x285/0x370 [ 0.000000] [] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] free_all_bootmem+0xf2/0x24d [ 0.000000] [] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [] ? dmar_table_detect+0x60/0x60 [ 0.000000] [] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [] mem_init+0x13/0x74 [ 0.000000] [] start_kernel+0x31d/0x6e9 [ 0.000000] [] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [] x86_64_start_kernel+0x140/0x163 [ 0.000000] [ 0.000000] [ 0.000000] Memory state around the buggy address: [ 0.000000] ffffea0000047b80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ffffea0000047c00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] >ffffea0000047c80: 00 00 00 00 00 00 f1 f1 f1 f1 00 00 f2 f2 00 00 [ 0.000000] ^ [ 0.000000] ffffea0000047d00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ffffea0000047d80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ================================================================== [ 0.000000] Disabling lock debugging due to kernel taint [ 0.000000] Kernel panic - not syncing: panic_on_warn set ... [ 0.000000] [ 0.000000] CPU: 0 PID: 0 Comm: swapper Tainted: G B 4.4.109-g8cbe01c #10 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 6ab0c6f27bb81572 ffffffff84207c40 ffffffff81d0289d [ 0.000000] ffffffff83fb3615 ffffffff84207d18 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d08 ffffffff814176ca 0000000041b58ab3 [ 0.000000] Call Trace: [ 0.000000] [] dump_stack+0xc1/0x124 [ 0.000000] [] panic+0x1aa/0x388 [ 0.000000] [] ? percpu_up_read.constprop.45+0xe1/0xe1 [ 0.000000] [] kasan_end_report+0x50/0x50 [ 0.000000] [] kasan_report+0x15c/0x370 [ 0.000000] [] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] free_all_bootmem+0xf2/0x24d [ 0.000000] [] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [] ? dmar_table_detect+0x60/0x60 [ 0.000000] [] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [] mem_init+0x13/0x74 [ 0.000000] [] start_kernel+0x31d/0x6e9 [ 0.000000] [] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [] x86_64_start_kernel+0x140/0x163 [ 0.000000] Rebooting in 86400 seconds.. [ 0.000000] ACPI MEMORY or I/O RESET_REG. SeaBIOS (version 1.8.2-20171012_061934-google) Total RAM Size = 0x00000001e0000000 = 7680 MiB CPUs found: 2 Max CPUs supported: 2 found virtio-scsi at 0:3 virtio-scsi vendor='Google' product='PersistentDisk' rev='1' type=0 removable=0 virtio-scsi blksize=512 sectors=4194304 = 2048 MiB drive 0x000f3050: PCHS=0/0/0 translation=lba LCHS=520/128/63 s=4194304 Booting from Hard Disk 0... early console in decompress_kernel input_data: 0x00000000039be26e input_len: 0x0000000001424c0d 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 4.4.109-g8cbe01c (syzkaller@ci) (gcc version 7.1.1 20170620 (GCC) ) #10 SMP PREEMPT Tue Jan 2 20:37:39 UTC 2018 [ 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 1278107438 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 4.4.109-g8cbe01c #10 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 72f7a7a283fef622 ffffffff84207ce8 ffffffff81d0289d [ 0.000000] ffffea0000047ce0 ffffea0000047ce0 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d20 ffffffff814fad79 ffffea0000047ce0 [ 0.000000] Call Trace: [ 0.000000] [] dump_stack+0xc1/0x124 [ 0.000000] [] print_address_description+0x189/0x260 [ 0.000000] [] kasan_report+0x285/0x370 [ 0.000000] [] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] free_all_bootmem+0xf2/0x24d [ 0.000000] [] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [] ? dmar_table_detect+0x60/0x60 [ 0.000000] [] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [] mem_init+0x13/0x74 [ 0.000000] [] start_kernel+0x31d/0x6e9 [ 0.000000] [] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [] x86_64_start_kernel+0x140/0x163 [ 0.000000] [ 0.000000] [ 0.000000] Memory state around the buggy address: [ 0.000000] ffffea0000047b80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ffffea0000047c00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] >ffffea0000047c80: 00 00 00 00 00 00 f1 f1 f1 f1 00 00 f2 f2 00 00 [ 0.000000] ^ [ 0.000000] ffffea0000047d00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ffffea0000047d80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ================================================================== [ 0.000000] Disabling lock debugging due to kernel taint [ 0.000000] Kernel panic - not syncing: panic_on_warn set ... [ 0.000000] [ 0.000000] CPU: 0 PID: 0 Comm: swapper Tainted: G B 4.4.109-g8cbe01c #10 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 72f7a7a283fef622 ffffffff84207c40 ffffffff81d0289d [ 0.000000] ffffffff83fb3615 ffffffff84207d18 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d08 ffffffff814176ca 0000000041b58ab3 [ 0.000000] Call Trace: [ 0.000000] [] dump_stack+0xc1/0x124 [ 0.000000] [] panic+0x1aa/0x388 [ 0.000000] [] ? percpu_up_read.constprop.45+0xe1/0xe1 [ 0.000000] [] kasan_end_report+0x50/0x50 [ 0.000000] [] kasan_report+0x15c/0x370 [ 0.000000] [] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] free_all_bootmem+0xf2/0x24d [ 0.000000] [] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [] ? dmar_table_detect+0x60/0x60 [ 0.000000] [] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [] mem_init+0x13/0x74 [ 0.000000] [] start_kernel+0x31d/0x6e9 [ 0.000000] [] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [] x86_64_start_kernel+0x140/0x163 [ 0.000000] Rebooting in 86400 seconds.. [ 0.000000] ACPI MEMORY or I/O RESET_REG. SeaBIOS (version 1.8.2-20171012_061934-google) Total RAM Size = 0x00000001e0000000 = 7680 MiB CPUs found: 2 Max CPUs supported: 2 found virtio-scsi at 0:3 virtio-scsi vendor='Google' product='PersistentDisk' rev='1' type=0 removable=0 virtio-scsi blksize=512 sectors=4194304 = 2048 MiB drive 0x000f3050: PCHS=0/0/0 translation=lba LCHS=520/128/63 s=4194304 Booting from Hard Disk 0... early console in decompress_kernel input_data: 0x00000000039be26e input_len: 0x0000000001424c0d 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 4.4.109-g8cbe01c (syzkaller@ci) (gcc version 7.1.1 20170620 (GCC) ) #10 SMP PREEMPT Tue Jan 2 20:37:39 UTC 2018 [ 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 1378868633 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 4.4.109-g8cbe01c #10 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 81094d6f92109bef ffffffff84207ce8 ffffffff81d0289d [ 0.000000] ffffea0000047ce0 ffffea0000047ce0 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d20 ffffffff814fad79 ffffea0000047ce0 [ 0.000000] Call Trace: [ 0.000000] [] dump_stack+0xc1/0x124 [ 0.000000] [] print_address_description+0x189/0x260 [ 0.000000] [] kasan_report+0x285/0x370 [ 0.000000] [] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] free_all_bootmem+0xf2/0x24d [ 0.000000] [] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [] ? dmar_table_detect+0x60/0x60 [ 0.000000] [] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [] mem_init+0x13/0x74 [ 0.000000] [] start_kernel+0x31d/0x6e9 [ 0.000000] [] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [] x86_64_start_kernel+0x140/0x163 [ 0.000000] [ 0.000000] [ 0.000000] Memory state around the buggy address: [ 0.000000] ffffea0000047b80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ffffea0000047c00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] >ffffea0000047c80: 00 00 00 00 00 00 f1 f1 f1 f1 00 00 f2 f2 00 00 [ 0.000000] ^ [ 0.000000] ffffea0000047d00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ffffea0000047d80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ================================================================== [ 0.000000] Disabling lock debugging due to kernel taint [ 0.000000] Kernel panic - not syncing: panic_on_warn set ... [ 0.000000] [ 0.000000] CPU: 0 PID: 0 Comm: swapper Tainted: G B 4.4.109-g8cbe01c #10 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 81094d6f92109bef ffffffff84207c40 ffffffff81d0289d [ 0.000000] ffffffff83fb3615 ffffffff84207d18 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d08 ffffffff814176ca 0000000041b58ab3 [ 0.000000] Call Trace: [ 0.000000] [] dump_stack+0xc1/0x124 [ 0.000000] [] panic+0x1aa/0x388 [ 0.000000] [] ? percpu_up_read.constprop.45+0xe1/0xe1 [ 0.000000] [] kasan_end_report+0x50/0x50 [ 0.000000] [] kasan_report+0x15c/0x370 [ 0.000000] [] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] free_all_bootmem+0xf2/0x24d [ 0.000000] [] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [] ? dmar_table_detect+0x60/0x60 [ 0.000000] [] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [] mem_init+0x13/0x74 [ 0.000000] [] start_kernel+0x31d/0x6e9 [ 0.000000] [] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [] x86_64_start_kernel+0x140/0x163 [ 0.000000] Rebooting in 86400 seconds.. [ 0.000000] ACPI MEMORY or I/O RESET_REG. SeaBIOS (version 1.8.2-20171012_061934-google) Total RAM Size = 0x00000001e0000000 = 7680 MiB CPUs found: 2 Max CPUs supported: 2 found virtio-scsi at 0:3 virtio-scsi vendor='Google' product='PersistentDisk' rev='1' type=0 removable=0 virtio-scsi blksize=512 sectors=4194304 = 2048 MiB drive 0x000f3050: PCHS=0/0/0 translation=lba LCHS=520/128/63 s=4194304 Booting from Hard Disk 0... early console in decompress_kernel input_data: 0x00000000039be26e input_len: 0x0000000001424c0d 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 4.4.109-g8cbe01c (syzkaller@ci) (gcc version 7.1.1 20170620 (GCC) ) #10 SMP PREEMPT Tue Jan 2 20:37:39 UTC 2018 [ 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 1232055251 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 4.4.109-g8cbe01c #10 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 6d2140dc7e288f5c ffffffff84207ce8 ffffffff81d0289d [ 0.000000] ffffea0000047ce0 ffffea0000047ce0 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d20 ffffffff814fad79 ffffea0000047ce0 [ 0.000000] Call Trace: [ 0.000000] [] dump_stack+0xc1/0x124 [ 0.000000] [] print_address_description+0x189/0x260 [ 0.000000] [] kasan_report+0x285/0x370 [ 0.000000] [] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] free_all_bootmem+0xf2/0x24d [ 0.000000] [] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [] ? dmar_table_detect+0x60/0x60 [ 0.000000] [] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [] mem_init+0x13/0x74 [ 0.000000] [] start_kernel+0x31d/0x6e9 [ 0.000000] [] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [] x86_64_start_kernel+0x140/0x163 [ 0.000000] [ 0.000000] [ 0.000000] Memory state around the buggy address: [ 0.000000] ffffea0000047b80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ffffea0000047c00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] >ffffea0000047c80: 00 00 00 00 00 00 f1 f1 f1 f1 00 00 f2 f2 00 00 [ 0.000000] ^ [ 0.000000] ffffea0000047d00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ffffea0000047d80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ================================================================== [ 0.000000] Disabling lock debugging due to kernel taint [ 0.000000] Kernel panic - not syncing: panic_on_warn set ... [ 0.000000] [ 0.000000] CPU: 0 PID: 0 Comm: swapper Tainted: G B 4.4.109-g8cbe01c #10 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 6d2140dc7e288f5c ffffffff84207c40 ffffffff81d0289d [ 0.000000] ffffffff83fb3615 ffffffff84207d18 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d08 ffffffff814176ca 0000000041b58ab3 [ 0.000000] Call Trace: [ 0.000000] [] dump_stack+0xc1/0x124 [ 0.000000] [] panic+0x1aa/0x388 [ 0.000000] [] ? percpu_up_read.constprop.45+0xe1/0xe1 [ 0.000000] [] kasan_end_report+0x50/0x50 [ 0.000000] [] kasan_report+0x15c/0x370 [ 0.000000] [] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] free_all_bootmem+0xf2/0x24d [ 0.000000] [] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [] ? dmar_table_detect+0x60/0x60 [ 0.000000] [] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [] mem_init+0x13/0x74 [ 0.000000] [] start_kernel+0x31d/0x6e9 [ 0.000000] [] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [] x86_64_start_kernel+0x140/0x163 [ 0.000000] Rebooting in 86400 seconds.. [ 0.000000] ACPI MEMORY or I/O RESET_REG. SeaBIOS (version 1.8.2-20171012_061934-google) Total RAM Size = 0x00000001e0000000 = 7680 MiB CPUs found: 2 Max CPUs supported: 2 found virtio-scsi at 0:3 virtio-scsi vendor='Google' product='PersistentDisk' rev='1' type=0 removable=0 virtio-scsi blksize=512 sectors=4194304 = 2048 MiB drive 0x000f3050: PCHS=0/0/0 translation=lba LCHS=520/128/63 s=4194304 Booting from Hard Disk 0... early console in decompress_kernel input_data: 0x00000000039be26e input_len: 0x0000000001424c0d 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 4.4.109-g8cbe01c (syzkaller@ci) (gcc version 7.1.1 20170620 (GCC) ) #10 SMP PREEMPT Tue Jan 2 20:37:39 UTC 2018 [ 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 1289660859 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 4.4.109-g8cbe01c #10 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 74c6c88e85ce170e ffffffff84207ce8 ffffffff81d0289d [ 0.000000] ffffea0000047ce0 ffffea0000047ce0 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d20 ffffffff814fad79 ffffea0000047ce0 [ 0.000000] Call Trace: [ 0.000000] [] dump_stack+0xc1/0x124 [ 0.000000] [] print_address_description+0x189/0x260 [ 0.000000] [] kasan_report+0x285/0x370 [ 0.000000] [] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] free_all_bootmem+0xf2/0x24d [ 0.000000] [] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [] ? dmar_table_detect+0x60/0x60 [ 0.000000] [] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [] mem_init+0x13/0x74 [ 0.000000] [] start_kernel+0x31d/0x6e9 [ 0.000000] [] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [] x86_64_start_kernel+0x140/0x163 [ 0.000000] [ 0.000000] [ 0.000000] Memory state around the buggy address: [ 0.000000] ffffea0000047b80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ffffea0000047c00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] >ffffea0000047c80: 00 00 00 00 00 00 f1 f1 f1 f1 00 00 f2 f2 00 00 [ 0.000000] ^ [ 0.000000] ffffea0000047d00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ffffea0000047d80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ================================================================== [ 0.000000] Disabling lock debugging due to kernel taint [ 0.000000] Kernel panic - not syncing: panic_on_warn set ... [ 0.000000] [ 0.000000] CPU: 0 PID: 0 Comm: swapper Tainted: G B 4.4.109-g8cbe01c #10 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 74c6c88e85ce170e ffffffff84207c40 ffffffff81d0289d [ 0.000000] ffffffff83fb3615 ffffffff84207d18 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d08 ffffffff814176ca 0000000041b58ab3 [ 0.000000] Call Trace: [ 0.000000] [] dump_stack+0xc1/0x124 [ 0.000000] [] panic+0x1aa/0x388 [ 0.000000] [] ? percpu_up_read.constprop.45+0xe1/0xe1 [ 0.000000] [] kasan_end_report+0x50/0x50 [ 0.000000] [] kasan_report+0x15c/0x370 [ 0.000000] [] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] free_all_bootmem+0xf2/0x24d [ 0.000000] [] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [] ? dmar_table_detect+0x60/0x60 [ 0.000000] [] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [] mem_init+0x13/0x74 [ 0.000000] [] start_kernel+0x31d/0x6e9 [ 0.000000] [] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [] x86_64_start_kernel+0x140/0x163 [ 0.000000] Rebooting in 86400 seconds.. [ 0.000000] ACPI MEMORY or I/O RESET_REG. SeaBIOS (version 1.8.2-20171012_061934-google) Total RAM Size = 0x00000001e0000000 = 7680 MiB CPUs found: 2 Max CPUs supported: 2 found virtio-scsi at 0:3 virtio-scsi vendor='Google' product='PersistentDisk' rev='1' type=0 removable=0 virtio-scsi blksize=512 sectors=4194304 = 2048 MiB drive 0x000f3050: PCHS=0/0/0 translation=lba LCHS=520/128/63 s=4194304 Booting from Hard Disk 0... early console in decompress_kernel input_data: 0x00000000039be26e input_len: 0x0000000001424c0d 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 4.4.109-g8cbe01c (syzkaller@ci) (gcc version 7.1.1 20170620 (GCC) ) #10 SMP PREEMPT Tue Jan 2 20:37:39 UTC 2018 [ 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 1284245943 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 4.4.109-g8cbe01c #10 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 74255ddd852cac5d ffffffff84207ce8 ffffffff81d0289d [ 0.000000] ffffea0000047ce0 ffffea0000047ce0 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d20 ffffffff814fad79 ffffea0000047ce0 [ 0.000000] Call Trace: [ 0.000000] [] dump_stack+0xc1/0x124 [ 0.000000] [] print_address_description+0x189/0x260 [ 0.000000] [] kasan_report+0x285/0x370 [ 0.000000] [] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] free_all_bootmem+0xf2/0x24d [ 0.000000] [] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [] ? dmar_table_detect+0x60/0x60 [ 0.000000] [] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [] mem_init+0x13/0x74 [ 0.000000] [] start_kernel+0x31d/0x6e9 [ 0.000000] [] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [] x86_64_start_kernel+0x140/0x163 [ 0.000000] [ 0.000000] [ 0.000000] Memory state around the buggy address: [ 0.000000] ffffea0000047b80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ffffea0000047c00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] >ffffea0000047c80: 00 00 00 00 00 00 f1 f1 f1 f1 00 00 f2 f2 00 00 [ 0.000000] ^ [ 0.000000] ffffea0000047d00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ffffea0000047d80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 0.000000] ================================================================== [ 0.000000] Disabling lock debugging due to kernel taint [ 0.000000] Kernel panic - not syncing: panic_on_warn set ... [ 0.000000] [ 0.000000] CPU: 0 PID: 0 Comm: swapper Tainted: G B 4.4.109-g8cbe01c #10 [ 0.000000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] 0000000000000000 74255ddd852cac5d ffffffff84207c40 ffffffff81d0289d [ 0.000000] ffffffff83fb3615 ffffffff84207d18 0000000000000001 ffffea0000047ce0 [ 0.000000] ffffea0000047ce0 ffffffff84207d08 ffffffff814176ca 0000000041b58ab3 [ 0.000000] Call Trace: [ 0.000000] [] dump_stack+0xc1/0x124 [ 0.000000] [] panic+0x1aa/0x388 [ 0.000000] [] ? percpu_up_read.constprop.45+0xe1/0xe1 [ 0.000000] [] kasan_end_report+0x50/0x50 [ 0.000000] [] kasan_report+0x15c/0x370 [ 0.000000] [] ? reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] __asan_report_store8_noabort+0x17/0x20 [ 0.000000] [] reserve_bootmem_region+0xdf/0x130 [ 0.000000] [] free_all_bootmem+0xf2/0x24d [ 0.000000] [] ? reset_all_zones_managed_pages+0xb1/0xb1 [ 0.000000] [] ? dmar_table_detect+0x60/0x60 [ 0.000000] [] ? acpi_os_unmap_memory+0x30/0x30 [ 0.000000] [] mem_init+0x13/0x74 [ 0.000000] [] start_kernel+0x31d/0x6e9 [ 0.000000] [] ? thread_stack_cache_init+0xb/0xb [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] ? early_idt_handler_array+0x120/0x120 [ 0.000000] [] x86_64_start_reservations+0x2a/0x2c [ 0.000000] [] x86_64_start_kernel+0x140/0x163 [ 0.000000] Rebooting in 86400 seconds..