Pseudo-terminal will not be allocated because stdin is not a terminal. Warning: Permanently added '[ssh-serialport.googleapis.com]:9600,[216.239.38.127]:9600' (RSA) to the list of known hosts. serialport: Connected to syzkaller.us-central1-c.ci-upstream-linux-next-kasan-gce-root-test-0 port 1 (session ID: 4158bb2b078190be50ec61797d4d5785d1ef69e246c3940f7e50dd51bb5d2f40, active connections: 1). SeaBIOS (version 1.8.2-20181112_143635-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 0x000f2a70: PCHS=0/0/0 translation=lba LCHS=520/128/63 s=4194304 Booting from Hard Disk 0... early console in extract_kernel input_data: 0x0000000008b962e9 input_len: 0x000000000346cb59 output: 0x0000000001000000 output_len: 0x0000000009b1fa48 kernel_total_size: 0x000000000b026000 trampoline_32bit: 0x000000000009d000 Decompressing Linux... Parsing ELF... done. Booting the kernel. [ 0.000000] Linux version 4.20.0-rc7-next-20181219 (syzkaller@ci) (gcc version 8.0.1 20180413 (experimental) (GCC)) #176 SMP PREEMPT Wed Dec 19 08:10:43 UTC 2018 [ 0.000000] Command line: BOOT_IMAGE=/vmlinuz root=/dev/sda1 console=ttyS0 earlyprintk=serial vsyscall=native rodata=n oops=panic panic_on_warn=1 nmi_watchdog=panic panic=86400 security=apparmor ima_policy=tcb workqueue.watchdog_thresh=140 kvm-intel.nested=1 nf-conntrack-ftp.ports=20000 nf-conntrack-tftp.ports=20000 nf-conntrack-sip.ports=20000 nf-conntrack-irc.ports=20000 nf-conntrack-sane.ports=20000 vivid.n_devs=16 vivid.multiplanar=1,2,1,2,1,2,1,2,1,2,1,2,1,2,1,2 spec_store_bypass_disable=prctl nopcid [ 0.000000] KERNEL supported cpus: [ 0.000000] Intel GenuineIntel [ 0.000000] AMD AuthenticAMD [ 0.000000] Centaur CentaurHauls [ 0.000000] x86/fpu: Supporting XSAVE feature 0x001: 'x87 floating point registers' [ 0.000000] x86/fpu: Supporting XSAVE feature 0x002: 'SSE registers' [ 0.000000] x86/fpu: Supporting XSAVE feature 0x004: 'AVX registers' [ 0.000000] x86/fpu: xstate_offset[2]: 576, xstate_sizes[2]: 256 [ 0.000000] x86/fpu: Enabled xstate features 0x7, context size is 832 bytes, using 'standard' format. [ 0.000000] 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] printk: bootconsole [earlyser0] enabled [ 0.000000] Malformed early option 'vsyscall' [ 0.000000] nopcid: PCID feature disabled [ 0.000000] NX (Execute Disable) protection: active [ 0.000000] SMBIOS 2.4 present. [ 0.000000] DMI: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000] Hypervisor detected: KVM [ 0.000000] kvm-clock: Using msrs 4b564d01 and 4b564d00 [ 0.000003] kvm-clock: cpu 0, msr a74a001, primary cpu clock [ 0.000003] kvm-clock: using sched offset of 3682743550 cycles [ 0.000782] clocksource: kvm-clock: mask: 0xffffffffffffffff max_cycles: 0x1cd42e4dffb, max_idle_ns: 881590591483 ns [ 0.003029] tsc: Detected 2300.000 MHz processor [ 0.006544] last_pfn = 0x220000 max_arch_pfn = 0x400000000 [ 0.007435] x86/PAT: Configuration [0-7]: WB WC UC- UC WB WP UC- WT [ 0.008373] last_pfn = 0xbfffd max_arch_pfn = 0x400000000 [ 0.012983] found SMP MP-table at [mem 0x000f2ce0-0x000f2cef] mapped at [(____ptrval____)] [ 0.014211] check: Scanning 1 areas for low memory corruption [ 0.015038] Using GB pages for direct mapping [ 0.017524] ACPI: Early table checksum verification disabled [ 0.018473] ACPI: RSDP 0x00000000000F2AB0 000014 (v00 Google) [ 0.019379] ACPI: RSDT 0x00000000BFFFDBA0 000038 (v01 Google GOOGRSDT 00000001 GOOG 00000001) [ 0.020564] ACPI: FACP 0x00000000BFFFFF00 0000F4 (v02 Google GOOGFACP 00000001 GOOG 00000001) [ 0.021732] ACPI: DSDT 0x00000000BFFFDBE0 0017B2 (v01 Google GOOGDSDT 00000001 GOOG 00000001) [ 0.023057] ACPI: FACS 0x00000000BFFFFEC0 000040 [ 0.023711] ACPI: FACS 0x00000000BFFFFEC0 000040 [ 0.024332] ACPI: SSDT 0x00000000BFFFF590 000930 (v01 Google GOOGSSDT 00000001 GOOG 00000001) [ 0.025474] ACPI: APIC 0x00000000BFFFF4A0 000076 (v01 Google GOOGAPIC 00000001 GOOG 00000001) [ 0.026705] ACPI: WAET 0x00000000BFFFF470 000028 (v01 Google GOOGWAET 00000001 GOOG 00000001) [ 0.028040] ACPI: SRAT 0x00000000BFFFF3A0 0000C8 (v01 Google GOOGSRAT 00000001 GOOG 00000001) [ 0.029489] SRAT: PXM 0 -> APIC 0x00 -> Node 0 [ 0.030137] SRAT: PXM 0 -> APIC 0x01 -> Node 0 [ 0.030748] ACPI: SRAT: Node 0 PXM 0 [mem 0x00000000-0x0009ffff] [ 0.031539] ACPI: SRAT: Node 0 PXM 0 [mem 0x00100000-0xbfffffff] [ 0.032330] ACPI: SRAT: Node 0 PXM 0 [mem 0x100000000-0x21fffffff] [ 0.033147] NUMA: Node 0 [mem 0x00000000-0x0009ffff] + [mem 0x00100000-0xbfffffff] -> [mem 0x00000000-0xbfffffff] [ 0.034540] NUMA: Node 0 [mem 0x00000000-0xbfffffff] + [mem 0x100000000-0x21fffffff] -> [mem 0x00000000-0x21fffffff] [ 0.036099] NODE_DATA(0) allocated [mem 0x21fffa000-0x21fffdfff] [ 0.084499] Zone ranges: [ 0.084898] DMA [mem 0x0000000000001000-0x0000000000ffffff] [ 0.085727] DMA32 [mem 0x0000000001000000-0x00000000ffffffff] [ 0.086558] Normal [mem 0x0000000100000000-0x000000021fffffff] [ 0.087368] Movable zone start for each node [ 0.087929] Early memory node ranges [ 0.088427] node 0: [mem 0x0000000000001000-0x000000000009efff] [ 0.089318] node 0: [mem 0x0000000000100000-0x00000000bfffcfff] [ 0.090139] node 0: [mem 0x0000000100000000-0x000000021fffffff] [ 0.091049] Zeroed struct page in unavailable ranges: 101 pages [ 0.091056] Initmem setup node 0 [mem 0x0000000000001000-0x000000021fffffff] [ 0.580346] kasan: KernelAddressSanitizer initialized [ 0.581508] ACPI: PM-Timer IO Port: 0xb008 [ 0.582076] ACPI: LAPIC_NMI (acpi_id[0xff] dfl dfl lint[0x1]) [ 0.583034] IOAPIC[0]: apic_id 0, version 17, address 0xfec00000, GSI 0-23 [ 0.584043] ACPI: INT_SRC_OVR (bus 0 bus_irq 5 global_irq 5 high level) [ 0.585009] ACPI: INT_SRC_OVR (bus 0 bus_irq 9 global_irq 9 high level) [ 0.585921] ACPI: INT_SRC_OVR (bus 0 bus_irq 10 global_irq 10 high level) [ 0.586844] ACPI: INT_SRC_OVR (bus 0 bus_irq 11 global_irq 11 high level) [ 0.587831] Using ACPI (MADT) for SMP configuration information [ 0.588744] smpboot: Allowing 2 CPUs, 0 hotplug CPUs [ 0.589498] PM: Registered nosave memory: [mem 0x00000000-0x00000fff] [ 0.590440] PM: Registered nosave memory: [mem 0x0009f000-0x0009ffff] [ 0.591398] PM: Registered nosave memory: [mem 0x000a0000-0x000effff] [ 0.592307] PM: Registered nosave memory: [mem 0x000f0000-0x000fffff] [ 0.593180] PM: Registered nosave memory: [mem 0xbfffd000-0xbfffffff] [ 0.594137] PM: Registered nosave memory: [mem 0xc0000000-0xfffbbfff] [ 0.594984] PM: Registered nosave memory: [mem 0xfffbc000-0xffffffff] [ 0.595891] [mem 0xc0000000-0xfffbbfff] available for PCI devices [ 0.596733] Booting paravirtualized kernel on KVM [ 0.597465] clocksource: refined-jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604462750000 ns [ 0.598916] random: get_random_bytes called from start_kernel+0x153/0x9e0 with crng_init=0 [ 0.600055] setup_percpu: NR_CPUS:64 nr_cpumask_bits:64 nr_cpu_ids:2 nr_node_ids:1 [ 0.601985] percpu: Embedded 56 pages/cpu @(____ptrval____) s189448 r8192 d31736 u1048576 [ 0.603254] Built 1 zonelists, mobility grouping on. Total pages: 1935238 [ 0.604179] Policy zone: Normal [ 0.604644] Kernel command line: BOOT_IMAGE=/vmlinuz root=/dev/sda1 console=ttyS0 earlyprintk=serial vsyscall=native rodata=n oops=panic panic_on_warn=1 nmi_watchdog=panic panic=86400 security=apparmor ima_policy=tcb workqueue.watchdog_thresh=140 kvm-intel.nested=1 nf-conntrack-ftp.ports=20000 nf-conntrack-tftp.ports=20000 nf-conntrack-sip.ports=20000 nf-conntrack-irc.ports=20000 nf-conntrack-sane.ports=20000 vivid.n_devs=16 vivid.multiplanar=1,2,1,2,1,2,1,2,1,2,1,2,1,2,1,2 spec_store_bypass_disable=prctl nopcid [ 1.363996] Memory: 6487012K/7863916K available (116761K kernel code, 13896K rwdata, 17616K rodata, 3124K init, 25476K bss, 1376904K reserved, 0K cma-reserved) [ 1.371089] Running RCU self tests [ 1.371591] rcu: Preemptible hierarchical RCU implementation. [ 1.372389] rcu: RCU lockdep checking is enabled. [ 1.373059] rcu: RCU restricting CPUs from NR_CPUS=64 to nr_cpu_ids=2. [ 1.373938] rcu: RCU callback double-/use-after-free debug enabled. [ 1.374939] Tasks RCU enabled. [ 1.375382] rcu: RCU calculated value of scheduler-enlistment delay is 10 jiffies. [ 1.376405] rcu: Adjusting geometry for rcu_fanout_leaf=16, nr_cpu_ids=2 [ 1.384231] NR_IRQS: 4352, nr_irqs: 440, preallocated irqs: 16 [ 1.387090] Console: colour VGA+ 80x25 [ 1.387689] printk: console [ttyS0] enabled [ 1.387689] printk: console [ttyS0] enabled [ 1.388829] printk: bootconsole [earlyser0] disabled [ 1.388829] printk: bootconsole [earlyser0] disabled [ 1.390379] Lock dependency validator: Copyright (c) 2006 Red Hat, Inc., Ingo Molnar [ 1.391517] ... MAX_LOCKDEP_SUBCLASSES: 8 [ 1.392095] ... MAX_LOCK_DEPTH: 48 [ 1.392704] ... MAX_LOCKDEP_KEYS: 8191 [ 1.393313] ... CLASSHASH_SIZE: 4096 [ 1.393920] ... MAX_LOCKDEP_ENTRIES: 32768 [ 1.394596] ... MAX_LOCKDEP_CHAINS: 65536 [ 1.395220] ... CHAINHASH_SIZE: 32768 [ 1.395899] memory used by lock dependency info: 7263 kB [ 1.396679] per task-struct memory footprint: 1920 bytes [ 1.397920] ACPI: Core revision 20181213 [ 1.399280] APIC: Switch to symmetric I/O mode setup [ 1.400601] x2apic enabled [ 1.402058] Switched APIC routing to physical x2apic. [ 1.406019] ..TIMER: vector=0x30 apic1=0 pin1=0 apic2=-1 pin2=-1 [ 1.407020] clocksource: tsc-early: mask: 0xffffffffffffffff max_cycles: 0x212735223b2, max_idle_ns: 440795277976 ns [ 1.408727] Calibrating delay loop (skipped) preset value.. 4600.00 BogoMIPS (lpj=23000000) [ 1.418718] pid_max: default: 32768 minimum: 301 [ 1.419842] LSM: Security Framework initializing [ 1.420518] Yama: becoming mindful. [ 1.421295] AppArmor: AppArmor initialized [ 1.426847] Dentry cache hash table entries: 1048576 (order: 11, 8388608 bytes) [ 1.431369] Inode-cache hash table entries: 524288 (order: 10, 4194304 bytes) [ 1.433168] Mount-cache hash table entries: 16384 (order: 5, 131072 bytes) [ 1.434194] Mountpoint-cache hash table entries: 16384 (order: 5, 131072 bytes) [ 1.435656] Kernel panic - not syncing: Can't create rootfs [ 1.436460] CPU: 0 PID: 0 Comm: swapper/0 Not tainted 4.20.0-rc7-next-20181219 #176 [ 1.437583] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 1.438694] Call Trace: [ 1.438694] dump_stack+0x244/0x39d [ 1.438694] ? dump_stack_print_info.cold.1+0x20/0x20 [ 1.438694] panic+0x2ad/0x632 [ 1.438694] ? add_taint.cold.5+0x16/0x16 [ 1.438694] ? put_fs_context+0x47a/0x5a0 [ 1.438694] ? vfs_get_tree+0x3ca/0x600 [ 1.438694] ? mnt_init+0x212/0x403 [ 1.438694] ? mnt_init+0x204/0x403 [ 1.438694] mnt_init+0x223/0x403 [ 1.438694] ? set_mphash_entries+0xc2/0xc2 [ 1.438694] vfs_caches_init+0x113/0x123 [ 1.438694] start_kernel+0x964/0x9e0 [ 1.438694] ? mem_encrypt_init+0xb/0xb [ 1.438694] ? early_idt_handler_common+0x3b/0x60 [ 1.438694] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 1.438694] ? x86_family+0x3e/0x50 [ 1.438694] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 1.438694] x86_64_start_reservations+0x29/0x2b [ 1.438694] x86_64_start_kernel+0x76/0x79 [ 1.438694] secondary_startup_64+0xa4/0xb0 [ 1.438694] Rebooting in 86400 seconds..