ooting the kernel. [ 0.000000] Linux version 4.17.0+ (syzkaller@ci) (gcc version 8.0.1 20180413 (experimental) (GCC)) #91 SMP Fri Jun 8 19:35:24 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 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 nopcid [ 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 0x0000000000100000-0x00000000bfff2fff] usable [ 0.000000] BIOS-e820: [mem 0x00000000bfff3000-0x00000000bfffffff] reserved [ 0.000000] BIOS-e820: [mem 0x00000000fffbc000-0x00000000ffffffff] reserved [ 0.000000] BIOS-e820: [mem 0x0000000100000000-0x000000021fffffff] usable [ 0.000000] bootconsole [earlyser0] enabled [ 0.000000] 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] last_pfn = 0x220000 max_arch_pfn = 0x400000000 [ 0.000000] x86/PAT: Configuration [0-7]: WB WC UC- UC WB WP UC- WT [ 0.000000] last_pfn = 0xbfff3 max_arch_pfn = 0x400000000 [ 0.000000] found SMP MP-table at [mem 0x000f22b0-0x000f22bf] mapped at [(____ptrval____)] [ 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 0x00000000000F2270 000014 (v00 Google) [ 0.000000] ACPI: RSDT 0x00000000BFFF3430 000038 (v01 Google GOOGRSDT 00000001 GOOG 00000001) [ 0.000000] ACPI: FACP 0x00000000BFFFCF60 0000F4 (v02 Google GOOGFACP 00000001 GOOG 00000001) [ 0.000000] ACPI: DSDT 0x00000000BFFF3470 0017B2 (v01 Google GOOGDSDT 00000001 GOOG 00000001) [ 0.000000] ACPI: FACS 0x00000000BFFFCF00 000040 [ 0.000000] ACPI: FACS 0x00000000BFFFCF00 000040 [ 0.000000] ACPI: SSDT 0x00000000BFFF65F0 00690D (v01 Google GOOGSSDT 00000001 GOOG 00000001) [ 0.000000] ACPI: APIC 0x00000000BFFF5D10 000076 (v01 Google GOOGAPIC 00000001 GOOG 00000001) [ 0.000000] ACPI: WAET 0x00000000BFFF5CE0 000028 (v01 Google GOOGWAET 00000001 GOOG 00000001) [ 0.000000] ACPI: SRAT 0x00000000BFFF4C30 0000C8 (v01 Google GOOGSRAT 00000001 GOOG 00000001) [ 0.000000] SRAT: PXM 0 -> APIC 0x00 -> Node 0 [ 0.000000] SRAT: PXM 0 -> APIC 0x01 -> Node 0 [ 0.000000] ACPI: SRAT: Node 0 PXM 0 [mem 0x00000000-0x0009ffff] [ 0.000000] ACPI: SRAT: Node 0 PXM 0 [mem 0x00100000-0xbfffffff] [ 0.000000] ACPI: SRAT: Node 0 PXM 0 [mem 0x100000000-0x21fffffff] [ 0.000000] NUMA: Node 0 [mem 0x00000000-0x0009ffff] + [mem 0x00100000-0xbfffffff] -> [mem 0x00000000-0xbfffffff] [ 0.000000] NUMA: Node 0 [mem 0x00000000-0xbfffffff] + [mem 0x100000000-0x21fffffff] -> [mem 0x00000000-0x21fffffff] [ 0.000000] NODE_DATA(0) allocated [mem 0x21fffa000-0x21fffdfff] [ 0.000000] kvm-clock: cpu 0, msr 2:1fff8001, primary cpu clock [ 0.000000] kvm-clock: Using msrs 4b564d01 and 4b564d00 [ 0.000000] kvm-clock: using sched offset of 5336531468 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 0x0000000000100000-0x00000000bfff2fff] [ 0.000000] node 0: [mem 0x0000000100000000-0x000000021fffffff] [ 0.000000] Initmem setup node 0 [mem 0x0000000000001000-0x000000021fffffff] [ 0.000000] Reserved but unavailable: 98 pages [ 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 0xbfff3000-0xbfffffff] [ 0.000000] PM: Registered nosave memory: [mem 0xc0000000-0xfffbbfff] [ 0.000000] PM: Registered nosave memory: [mem 0xfffbc000-0xffffffff] [ 0.000000] [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: 1910969940391419 ns [ 0.000000] random: get_random_bytes called from start_kernel+0x10a/0x92d with crng_init=0 [ 0.000000] setup_percpu: NR_CPUS:64 nr_cpumask_bits:64 nr_cpu_ids:2 nr_node_ids:1 [ 0.000000] percpu: Embedded 56 pages/cpu @(____ptrval____) s188488 r8192 d32696 u1048576 [ 0.000000] Built 1 zonelists, mobility grouping on. Total pages: 1935228 [ 0.000000] Policy zone: Normal [ 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 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 nopcid [ 0.000000] Memory: 6499856K/7863876K available (110620K kernel code, 12277K rwdata, 16036K rodata, 3952K init, 23144K bss, 1364020K reserved, 0K cma-reserved) [ 0.001000] Running RCU self tests [ 0.001000] Hierarchical RCU implementation. [ 0.001000] RCU lockdep checking is enabled. [ 0.001000] RCU restricting CPUs from NR_CPUS=64 to nr_cpu_ids=2. [ 0.001000] RCU callback double-/use-after-free debug enabled. [ 0.001000] RCU: Adjusting geometry for rcu_fanout_leaf=16, nr_cpu_ids=2 [ 0.001000] NR_IRQS: 4352, nr_irqs: 440, preallocated irqs: 16 [ 0.001000] Console: colour VGA+ 80x25 [ 0.001000] console [ttyS0] enabled [ 0.001000] console [ttyS0] enabled [ 0.001000] bootconsole [earlyser0] disabled [ 0.001000] bootconsole [earlyser0] disabled [ 0.001000] Lock dependency validator: Copyright (c) 2006 Red Hat, Inc., Ingo Molnar [ 0.001000] ... MAX_LOCKDEP_SUBCLASSES: 8 [ 0.001000] ... MAX_LOCK_DEPTH: 48 [ 0.001000] ... MAX_LOCKDEP_KEYS: 8191 [ 0.001000] ... CLASSHASH_SIZE: 4096 [ 0.001000] ... MAX_LOCKDEP_ENTRIES: 32768 [ 0.001000] ... MAX_LOCKDEP_CHAINS: 65536 [ 0.001000] ... CHAINHASH_SIZE: 32768 [ 0.001000] memory used by lock dependency info: 7391 kB [ 0.001000] per task-struct memory footprint: 1920 bytes [ 0.001000] ACPI: Core revision 20180508 [ 0.001000] APIC: Switch to symmetric I/O mode setup [ 0.001308] x2apic enabled [ 0.002018] Switched APIC routing to physical x2apic. [ 0.006000] ..TIMER: vector=0x30 apic1=0 pin1=0 apic2=-1 pin2=-1 [ 0.006000] tsc: Detected 2300.000 MHz processor [ 0.006041] clocksource: tsc-early: mask: 0xffffffffffffffff max_cycles: 0x212735223b2, max_idle_ns: 440795277976 ns [ 0.007031] Calibrating delay loop (skipped) preset value.. 4600.00 BogoMIPS (lpj=2300000) [ 0.008009] pid_max: default: 32768 minimum: 301 [ 0.010139] Security Framework initialized [ 0.010741] Yama: becoming mindful. [ 0.011052] SELinux: Initializing. [ 0.012168] AppArmor: AppArmor disabled by boot time parameter [ 0.017515] Dentry cache hash table entries: 1048576 (order: 11, 8388608 bytes) [ 0.020486] Inode-cache hash table entries: 524288 (order: 10, 4194304 bytes) [ 0.021159] Mount-cache hash table entries: 16384 (order: 5, 131072 bytes) [ 0.023022] Mountpoint-cache hash table entries: 16384 (order: 5, 131072 bytes) [ 0.026593] CPU: Physical Processor ID: 0 [ 0.027068] mce: CPU supports 32 MCE banks [ 0.028155] Last level iTLB entries: 4KB 1024, 2MB 1024, 4MB 1024 [ 0.029010] Last level dTLB entries: 4KB 1024, 2MB 1024, 4MB 1024, 1GB 4 [ 0.030024] Spectre V2 : Mitigation: Full generic retpoline [ 0.031008] Speculative Store Bypass: Vulnerable [ 0.032768] Freeing SMP alternatives memory: 64K [ 0.036000] smpboot: CPU0: Intel(R) Xeon(R) CPU @ 2.30GHz (family: 0x6, model: 0x3f, stepping: 0x0) [ 0.037314] Performance Events: unsupported p6 CPU model 63 no PMU driver, software events only. [ 0.038239] Hierarchical SRCU implementation. [ 0.040081] NMI watchdog: Perf event create on CPU 0 failed with -2 [ 0.041009] NMI watchdog: Perf NMI watchdog permanently disabled [ 0.042346] smp: Bringing up secondary CPUs ... [ 0.044680] x86: Booting SMP configuration: [ 0.045012] .... node #0, CPUs: #1 [ 0.001000] kvm-clock: cpu 1, msr 2:1fff8041, secondary cpu clock [ 0.047519] smp: Brought up 1 node, 2 CPUs [ 0.048066] smpboot: Max logical packages: 1 [ 0.049020] smpboot: Total of 2 processors activated (9200.00 BogoMIPS) [ 0.053242] devtmpfs: initialized [ 0.064493] kworker/u4:0 (24) used greatest stack depth: 24120 bytes left [ 0.066121] clocksource: jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 1911260446275000 ns [ 0.067077] futex hash table entries: 512 (order: 4, 65536 bytes) [ 0.068733] xor: automatically using best checksumming function avx [ 0.069126] kworker/u4:1 (28) used greatest stack depth: 23848 bytes left [ 0.069504] RTC time: 19:40:10, date: 06/08/18 [ 0.079640] NET: Registered protocol family 16 [ 0.082973] audit: initializing netlink subsys (disabled) [ 0.084163] audit: type=2000 audit(1528486810.664:1): state=initialized audit_enabled=0 res=1 [ 0.086369] cpuidle: using governor menu [ 0.088118] kworker/u4:1 (32) used greatest stack depth: 23752 bytes left [ 0.089219] ACPI: bus type PCI registered [ 0.090806] PCI: Using configuration type 1 for base access [ 0.226000] kworker/u4:0 (667) used greatest stack depth: 22816 bytes left [ 0.257927] kworker/u4:1 (820) used greatest stack depth: 21752 bytes left [ 0.272161] HugeTLB registered 2.00 MiB page size, pre-allocated 0 pages [ 0.275030] cryptd: max_cpu_qlen set to 1000 [ 0.293024] raid6: sse2x1 gen() 1992 MB/s [ 0.310022] raid6: sse2x1 xor() 1044 MB/s [ 0.327022] raid6: sse2x2 gen() 1738 MB/s [ 0.344020] raid6: sse2x2 xor() 1892 MB/s [ 0.361017] raid6: sse2x4 gen() 6035 MB/s [ 0.378015] raid6: sse2x4 xor() 3316 MB/s [ 0.395020] raid6: avx2x1 gen() 4328 MB/s [ 0.412015] raid6: avx2x1 xor() 2091 MB/s [ 0.429011] raid6: avx2x2 gen() 7628 MB/s [ 0.446014] raid6: avx2x2 xor() 3878 MB/s [ 0.463023] raid6: avx2x4 gen() 11636 MB/s [ 0.480016] raid6: avx2x4 xor() 6037 MB/s [ 0.480687] raid6: using algorithm avx2x4 gen() 11636 MB/s [ 0.481030] raid6: .... xor() 6037 MB/s, rmw enabled [ 0.482010] raid6: using avx2x2 recovery algorithm [ 0.483627] ACPI: Added _OSI(Module Device) [ 0.484029] ACPI: Added _OSI(Processor Device) [ 0.485013] ACPI: Added _OSI(3.0 _SCP Extensions) [ 0.485664] ACPI: Added _OSI(Processor Aggregator Device) [ 0.486026] ACPI: Added _OSI(Linux-Dell-Video) [ 0.681563] ACPI: 2 ACPI AML tables successfully acquired and loaded [ 1.171329] ACPI: Interpreter enabled [ 1.172208] ACPI: (supports S0 S3 S4 S5) [ 1.172881] ACPI: Using IOAPIC for interrupt routing [ 1.173214] PCI: Using host bridge windows from ACPI; if necessary, use "pci=nocrs" and report a bug [ 1.175910] ACPI: Enabled 16 GPEs in block 00 to 0F [ 1.707187] ACPI: PCI Root Bridge [PCI0] (domain 0000 [bus 00-ff]) [ 1.708049] acpi PNP0A03:00: _OSC: OS supports [ASPM ClockPM Segments MSI] [ 1.709154] acpi PNP0A03:00: _OSC failed (AE_NOT_FOUND); disabling ASPM [ 1.710173] acpi PNP0A03:00: fail to add MMCONFIG information, can't access extended PCI configuration space under this bridge. [ 1.714704] PCI host bridge to bus 0000:00 [ 1.715028] pci_bus 0000:00: root bus resource [io 0x0000-0x0cf7 window] [ 1.716022] pci_bus 0000:00: root bus resource [io 0x0d00-0xffff window] [ 1.717021] pci_bus 0000:00: root bus resource [mem 0x000a0000-0x000bffff window] [ 1.718019] pci_bus 0000:00: root bus resource [mem 0xc0000000-0xfebfffff window] [ 1.719022] pci_bus 0000:00: root bus resource [bus 00-ff] [ 1.750158] pci 0000:00:01.3: quirk: [io 0xb000-0xb03f] claimed by PIIX4 ACPI [ 1.809145] ACPI: PCI Interrupt Link [LNKA] (IRQs 5 *10 11) [ 1.812731] ACPI: PCI Interrupt Link [LNKB] (IRQs 5 *10 11) [ 1.815783] ACPI: PCI Interrupt Link [LNKC] (IRQs 5 10 *11) [ 1.818963] ACPI: PCI Interrupt Link [LNKD] (IRQs 5 10 *11) [ 1.821357] ACPI: PCI Interrupt Link [LNKS] (IRQs *9) [ 2.184305] vgaarb: loaded [ 2.186427] SCSI subsystem initialized [ 2.188474] ACPI: bus type USB registered [ 2.190432] usbcore: registered new interface driver usbfs [ 2.191210] usbcore: registered new interface driver hub [ 2.192330] usbcore: registered new device driver usb [ 2.194486] pps_core: LinuxPPS API ver. 1 registered [ 2.195017] pps_core: Software ver. 5.3.6 - Copyright 2005-2007 Rodolfo Giometti [ 2.196085] PTP clock support registered [ 2.197597] EDAC MC: Ver: 3.0.0 [ 2.202601] Advanced Linux Sound Architecture Driver Initialized. [ 2.203341] PCI: Using ACPI for IRQ routing [ 2.207312] Bluetooth: Core ver 2.22 [ 2.208075] NET: Registered protocol family 31 [ 2.208954] Bluetooth: HCI device and connection manager initialized [ 2.209039] Bluetooth: HCI socket layer initialized [ 2.210020] Bluetooth: L2CAP socket layer initialized [ 2.211132] Bluetooth: SCO socket layer initialized [ 2.212063] NET: Registered protocol family 8 [ 2.213010] NET: Registered protocol family 20 [ 2.213851] NetLabel: Initializing [ 2.214011] NetLabel: domain hash size = 128 [ 2.215007] NetLabel: protocols = UNLABELED CIPSOv4 CALIPSO [ 2.216240] NetLabel: unlabeled traffic allowed by default [ 2.218275] nfc: nfc_init: NFC Core ver 0.1 [ 2.219333] NET: Registered protocol family 39 [ 2.221456] clocksource: Switched to clocksource kvm-clock [ 2.713338] VFS: Disk quotas dquot_6.6.0 [ 2.714144] VFS: Dquot-cache hash table entries: 512 (order 0, 4096 bytes) [ 2.715679] FS-Cache: Loaded [ 2.717129] CacheFiles: Loaded [ 2.717948] pnp: PnP ACPI init [ 2.729135] pnp: PnP ACPI: found 7 devices [ 2.773972] clocksource: acpi_pm: mask: 0xffffff max_cycles: 0xffffff, max_idle_ns: 2085701024 ns [ 2.776338] NET: Registered protocol family 2 [ 2.778862] tcp_listen_portaddr_hash hash table entries: 4096 (order: 6, 294912 bytes) [ 2.780699] TCP established hash table entries: 65536 (order: 7, 524288 bytes) [ 2.784076] TCP bind hash table entries: 65536 (order: 10, 4194304 bytes) [ 2.791700] TCP: Hash tables configured (established 65536 bind 65536) [ 2.793223] UDP hash table entries: 4096 (order: 7, 655360 bytes) [ 2.795872] UDP-Lite hash table entries: 4096 (order: 7, 655360 bytes) [ 2.798305] NET: Registered protocol family 1 [ 2.800554] RPC: Registered named UNIX socket transport module. [ 2.801654] RPC: Registered udp transport module. [ 2.802420] RPC: Registered tcp transport module. [ 2.803246] RPC: Registered tcp NFSv4.1 backchannel transport module. [ 2.805377] NET: Registered protocol family 44 [ 2.806299] pci 0000:00:00.0: Limiting direct PCI/PCI transfers [ 2.808051] PCI-DMA: Using software bounce buffering for IO (SWIOTLB) [ 2.809127] software IO TLB [mem 0xbbff3000-0xbfff3000] (64MB) mapped at [(____ptrval____)-(____ptrval____)] [ 2.811773] RAPL PMU: API unit is 2^-32 Joules, 3 fixed counters, 10737418240 ms ovfl timer [ 2.813076] RAPL PMU: hw unit of domain pp0-core 2^-0 Joules [ 2.813877] RAPL PMU: hw unit of domain package 2^-0 Joules [ 2.814834] RAPL PMU: hw unit of domain dram 2^-16 Joules [ 2.817828] kvm: already loaded the other module [ 2.818929] Machine check injector initialized [ 2.824098] Scanning for low memory corruption every 60 seconds [ 2.861335] Initialise system trusted keyrings [ 2.862907] workingset: timestamp_bits=40 max_order=21 bucket_order=0 [ 2.868267] DLM installed [ 2.870761] NFS: Registering the id_resolver key type [ 2.871670] Key type id_resolver registered [ 2.872332] Key type id_legacy registered [ 2.872922] nfs4filelayout_init: NFSv4 File Layout Driver Registering... [ 2.873974] Installing knfsd (copyright (C) 1996 okir@monad.swb.de). [ 2.876095] ntfs: driver 2.1.32 [Flags: R/W]. [ 2.877376] fuse init (API version 7.27) [ 2.880007] JFS: nTxBlock = 8192, nTxLock = 65536 [ 2.888810] SGI XFS with ACLs, security attributes, realtime, no debug enabled [ 2.891923] 9p: Installing v9fs 9p2000 file system support [ 2.892857] FS-Cache: Netfs '9p' registered for caching [ 2.896804] gfs2: GFS2 installed [ 2.898210] FS-Cache: Netfs 'ceph' registered for caching [ 2.899046] ceph: loaded (mds proto 32) [ 2.930635] NET: Registered protocol family 38 [ 2.932350] async_tx: api initialized (async) [ 2.933219] Key type asymmetric registered [ 2.933845] Asymmetric key parser 'x509' registered [ 2.934696] Key type pkcs7_test registered [ 2.935644] Block layer SCSI generic (bsg) driver version 0.4 loaded (major 250) [ 2.937426] io scheduler noop registered [ 2.938055] io scheduler deadline registered [ 2.938810] io scheduler cfq registered (default) [ 2.939579] io scheduler mq-deadline registered [ 2.940228] io scheduler kyber registered [ 2.940902] io scheduler bfq registered [ 2.945487] input: Power Button as /devices/LNXSYSTM:00/LNXPWRBN:00/input/input0 [ 2.947425] ACPI: Power Button [PWRF] [ 2.948722] input: Sleep Button as /devices/LNXSYSTM:00/LNXSLPBN:00/input/input1 [ 2.950312] ACPI: Sleep Button [SLPF] [ 2.966112] PCI Interrupt Link [LNKC] enabled at IRQ 11 [ 2.967059] virtio-pci 0000:00:03.0: virtio_pci: leaving for legacy driver [ 2.979356] PCI Interrupt Link [LNKD] enabled at IRQ 10 [ 2.980298] virtio-pci 0000:00:04.0: virtio_pci: leaving for legacy driver [ 2.987388] Serial: 8250/16550 driver, 4 ports, IRQ sharing enabled [ 3.010582] 00:03: ttyS0 at I/O 0x3f8 (irq = 4, base_baud = 115200) is a 16550A [ 3.036153] 00:04: ttyS1 at I/O 0x2f8 (irq = 3, base_baud = 115200) is a 16550A [ 3.061061] 00:05: ttyS2 at I/O 0x3e8 (irq = 6, base_baud = 115200) is a 16550A [ 3.085345] 00:06: ttyS3 at I/O 0x2e8 (irq = 7, base_baud = 115200) is a 16550A [ 3.091717] Non-volatile memory driver v1.3 [ 3.093398] Linux agpgart interface v0.103 [ 3.096212] [drm] radeon kernel modesetting enabled. [ 3.098079] [drm] amdgpu kernel modesetting enabled. [ 3.138400] brd: module loaded [ 3.159139] loop: module loaded [ 3.203811] null: module loaded [ 3.207395] nfcsim 0.2 initialized [ 3.208706] Loading iSCSI transport class v2.0-870. [ 3.227089] scsi host0: Virtio SCSI HBA [ 3.282189] scsi 0:0:1:0: Direct-Access Google PersistentDisk 1 PQ: 0 ANSI: 6 [ 3.627459] random: fast init done [ 3.872351] tsc: Refined TSC clocksource calibration: 2299.793 MHz [ 3.873949] clocksource: tsc: mask: 0xffffffffffffffff max_cycles: 0x212671cc3ca, max_idle_ns: 440795297541 ns [ 4.063418] sd 0:0:1:0: [sda] 4194304 512-byte logical blocks: (2.15 GB/2.00 GiB) [ 4.065223] sd 0:0:1:0: [sda] 4096-byte physical blocks [ 4.065549] sd 0:0:1:0: Attached scsi generic sg0 type 0 [ 4.066650] sd 0:0:1:0: [sda] Write Protect is off [ 4.069160] sd 0:0:1:0: [sda] Write cache: enabled, read cache: enabled, doesn't support DPO or FUA [ 4.070097] Ethernet Channel Bonding Driver: v3.7.1 (April 27, 2011) [ 4.089884] eql: Equalizer2002: Simon Janes (simon@ncm.com) and David S. Miller (davem@redhat.com) [ 4.096655] MACsec IEEE 802.1AE [ 4.098242] tun: Universal TUN/TAP device driver, 1.6 [ 4.126627] vcan: Virtual CAN interface driver [ 4.127759] vxcan: Virtual CAN Tunnel driver [ 4.128604] slcan: serial line CAN interface driver [ 4.129670] slcan: 10 dynamic interface channels. [ 4.130793] CAN device driver interface [ 4.131776] enic: Cisco VIC Ethernet NIC Driver, ver 2.3.0.53 [ 4.132910] e100: Intel(R) PRO/100 Network Driver, 3.5.24-k2-NAPI [ 4.134130] e100: Copyright(c) 1999-2006 Intel Corporation [ 4.135695] e1000: Intel(R) PRO/1000 Network Driver - version 7.3.21-k8-NAPI [ 4.137049] e1000: Copyright (c) 1999-2006 Intel Corporation. [ 4.138484] e1000e: Intel(R) PRO/1000 Network Driver - 3.2.6-k [ 4.139704] e1000e: Copyright(c) 1999 - 2015 Intel Corporation. [ 4.141080] sky2: driver version 1.30 [ 4.143938] PPP generic driver version 2.4.2 [ 4.145817] PPP BSD Compression module registered [ 4.147191] PPP Deflate Compression module registered [ 4.148043] PPP MPPE Compression module registered [ 4.148817] NET: Registered protocol family 24 [ 4.149720] PPTP driver version 0.8.5 [ 4.150709] sda: sda1 [ 4.151461] mac80211_hwsim: initializing netlink [ 4.157722] sd 0:0:1:0: [sda] Attached SCSI disk [ 4.168191] usbcore: registered new interface driver asix [ 4.169667] usbcore: registered new interface driver ax88179_178a [ 4.171206] usbcore: registered new interface driver cdc_ether [ 4.172385] usbcore: registered new interface driver net1080 [ 4.173498] usbcore: registered new interface driver cdc_subset [ 4.174882] usbcore: registered new interface driver zaurus [ 4.175957] usbcore: registered new interface driver cdc_ncm [ 4.183788] aoe: AoE v85 initialised. [ 4.185738] ehci_hcd: USB 2.0 'Enhanced' Host Controller (EHCI) Driver [ 4.187223] ehci-pci: EHCI PCI platform driver [ 4.188463] ohci_hcd: USB 1.1 'Open' Host Controller (OHCI) Driver [ 4.189657] ohci-pci: OHCI PCI platform driver [ 4.190967] uhci_hcd: USB Universal Host Controller Interface driver [ 4.192736] usbcore: registered new interface driver usblp [ 4.194242] usbcore: registered new interface driver usb-storage [ 4.196062] i8042: PNP: PS/2 Controller [PNP0303:KBD,PNP0f13:MOU] at 0x60,0x64 irq 1,12 [ 4.198602] i8042: Warning: Keylock active [ 4.200981] serio: i8042 KBD port at 0x60,0x64 irq 1 [ 4.202543] serio: i8042 AUX port at 0x60,0x64 irq 12 [ 4.205871] mousedev: PS/2 mouse device common for all mice [ 4.210439] rtc_cmos 00:00: RTC can wake from S4 [ 4.213078] rtc_cmos 00:00: registered as rtc0 [ 4.214120] rtc_cmos 00:00: nvmem registration failed [ 4.215130] rtc_cmos 00:00: alarms up to one day, 114 bytes nvram [ 4.217524] i2c /dev entries driver [ 4.220425] piix4_smbus 0000:00:01.3: SMBus base address uninitialized - upgrade BIOS or use force_addr=0xaddr [ 4.222458] i2c-parport-light: adapter type unspecified [ 4.223654] usbcore: registered new interface driver RobotFuzz Open Source InterFace, OSIF [ 4.225642] usbcore: registered new interface driver i2c-tiny-usb [ 4.229497] device-mapper: ioctl: 4.39.0-ioctl (2018-04-03) initialised: dm-devel@redhat.com [ 4.232179] device-mapper: raid: Loading target version 1.13.2 [ 4.233505] usbcore: registered new interface driver btusb [ 4.236045] usnic_verbs: Cisco VIC (USNIC) Verbs Driver v1.0.3 (December 19, 2013) [ 4.237714] usnic_verbs:usnic_uiom_init:585: [ 4.237720] IOMMU required but not present or enabled. USNIC QPs will not function w/o enabling IOMMU [ 4.240591] usnic_verbs:usnic_ib_init:649: [ 4.240596] Unable to initalize umem with err -1 [ 4.243345] iscsi: registered transport (iser) [ 4.244236] OPA Virtual Network Driver - v1.0 [ 4.253059] hidraw: raw HID events driver (C) Jiri Kosina [ 4.258310] usbcore: registered new interface driver usbhid [ 4.259794] usbhid: USB HID core driver [ 4.263927] NET: Registered protocol family 40 [ 4.266309] ashmem: initialized [ 4.277439] ================================================================== [ 4.278234] BUG: KASAN: use-after-free in call_usermodehelper_exec_work+0x2d3/0x310 [ 4.278234] Write of size 4 at addr ffff8801ce015770 by task kworker/u4:3/91 [ 4.278234] [ 4.278234] CPU: 0 PID: 91 Comm: kworker/u4:3 Not tainted 4.17.0+ #91 [ 4.278234] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 4.278234] Workqueue: events_unbound call_usermodehelper_exec_work [ 4.278234] Call Trace: [ 4.278234] dump_stack+0x1b9/0x294 [ 4.278234] ? dump_stack_print_info.cold.2+0x52/0x52 [ 4.278234] ? printk+0x9e/0xba [ 4.278234] ? kmsg_dump_rewind_nolock+0xe4/0xe4 [ 4.278234] ? kasan_check_write+0x14/0x20 [ 4.278234] print_address_description+0x6c/0x20b [ 4.278234] ? call_usermodehelper_exec_work+0x2d3/0x310 [ 4.278234] kasan_report.cold.7+0x242/0x2fe [ 4.278234] __asan_report_store4_noabort+0x17/0x20 [ 4.278234] call_usermodehelper_exec_work+0x2d3/0x310 [ 4.278234] ? call_usermodehelper_exec_async+0x9e0/0x9e0 [ 4.278234] process_one_work+0xc64/0x1b70 [ 4.278234] ? finish_task_switch+0x28b/0x840 [ 4.278234] ? pwq_dec_nr_in_flight+0x490/0x490 [ 4.278234] ? __schedule+0x809/0x1e30 [ 4.278234] ? lock_downgrade+0x8e0/0x8e0 [ 4.278234] ? graph_lock+0x170/0x170 [ 4.278234] ? find_held_lock+0x36/0x1c0 [ 4.278234] ? find_held_lock+0x36/0x1c0 [ 4.278234] ? lock_acquire+0x1dc/0x520 [ 4.278234] ? worker_thread+0x3d4/0x13a0 [ 4.278234] ? lock_downgrade+0x8e0/0x8e0 [ 4.278234] ? lock_release+0xa10/0xa10 [ 4.278234] ? kasan_check_read+0x11/0x20 [ 4.278234] ? do_raw_spin_trylock+0x1b0/0x1b0 [ 4.278234] worker_thread+0x181/0x13a0 [ 4.278234] ? process_one_work+0x1b70/0x1b70 [ 4.278234] ? graph_lock+0x170/0x170 [ 4.278234] ? find_held_lock+0x36/0x1c0 [ 4.322553] ? schedule+0xef/0x430 [ 4.322948] NET: Registered protocol family 26 [ 4.322553] ? __schedule+0x1e30/0x1e30 [ 4.322553] ? do_raw_spin_unlock+0x9e/0x2e0 [ 4.322553] ? do_raw_spin_trylock+0x1b0/0x1b0 [ 4.324155] Mirror/redirect action on [ 4.322553] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 4.325709] Simple TC action Loaded [ 4.322553] ? __kthread_parkme+0x111/0x1d0 [ 4.322553] ? parse_args.cold.15+0x1b3/0x1b3 [ 4.322553] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 4.322553] ? trace_hardirqs_on+0xd/0x10 [ 4.329164] netem: version 1.3 [ 4.322553] kthread+0x345/0x410 [ 4.330227] u32 classifier [ 4.322553] ? process_one_work+0x1b70/0x1b70 [ 4.331747] Actions configured [ 4.322553] ? kthread_bind+0x40/0x40 [ 4.322553] ret_from_fork+0x3a/0x50 [ 4.322553] [ 4.335180] nf_conntrack_irc: failed to register helpers [ 4.322553] Allocated by task 1: [ 4.336209] nf_conntrack_sane: failed to register helpers [ 4.322553] save_stack+0x43/0xd0 [ 4.342145] kasan_kmalloc+0xc4/0xe0 [ 4.343105] kmem_cache_alloc_trace+0x152/0x780 [ 4.344308] call_usermodehelper_setup+0xe8/0x400 [ 4.345535] kobject_uevent_env+0xb21/0x1110 [ 4.346004] kobject_uevent+0x1f/0x30 [ 4.346004] device_add+0x95d/0x16f0 [ 4.346004] device_create_groups_vargs+0x1ff/0x270 [ 4.349322] device_create_with_groups+0xd8/0x100 [ 4.349322] misc_register+0x475/0x7c0 [ 4.349322] binder_init+0x412/0x6e5 [ 4.349322] do_one_initcall+0x127/0x913 [ 4.349322] kernel_init_freeable+0x49b/0x58e [ 4.349322] kernel_init+0x11/0x1b3 [ 4.349322] ret_from_fork+0x3a/0x50 [ 4.349322] [ 4.357066] Freed by task 2105: [ 4.357066] save_stack+0x43/0xd0 [ 4.357066] __kasan_slab_free+0x11a/0x170 [ 4.357066] kasan_slab_free+0xe/0x10 [ 4.357066] kfree+0xd9/0x260 [ 4.357066] umh_complete+0x7b/0x90 [ 4.362052] call_usermodehelper_exec_async+0x6e8/0x9e0 [ 4.362052] ret_from_fork+0x3a/0x50 [ 4.364047] [ 4.364047] The buggy address belongs to the object at ffff8801ce015700 [ 4.364047] which belongs to the cache kmalloc-192 of size 192 [ 4.366048] The buggy address is located 112 bytes inside of [ 4.366048] 192-byte region [ffff8801ce015700, ffff8801ce0157c0) [ 4.370036] The buggy address belongs to the page: [ 4.370036] page:ffffea0007380540 count:1 mapcount:0 mapping:ffff8801da800040 index:0x0 [ 4.372035] flags: 0x2fffc0000000100(slab) [ 4.373065] raw: 02fffc0000000100 ffffea000739efc8 ffffea0007385688 ffff8801da800040 [ 4.374043] raw: 0000000000000000 ffff8801ce015000 0000000100000010 0000000000000000 [ 4.374043] page dumped because: kasan: bad access detected [ 4.377061] [ 4.377061] Memory state around the buggy address: [ 4.378037] ffff8801ce015600: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 4.380034] ffff8801ce015680: fb fb fb fb fb fb fb fb fc fc fc fc fc fc fc fc [ 4.381064] >ffff8801ce015700: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 4.382035] ^ [ 4.384035] ffff8801ce015780: fb fb fb fb fb fb fb fb fc fc fc fc fc fc fc fc [ 4.385063] ffff8801ce015800: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 4.386035] ================================================================== [ 4.388035] Disabling lock debugging due to kernel taint [ 4.389625] Kernel panic - not syncing: panic_on_warn set ... [ 4.389625] [ 4.390538] CPU: 0 PID: 91 Comm: kworker/u4:3 Tainted: G B 4.17.0+ #91 [ 4.392028] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 4.394027] Workqueue: events_unbound call_usermodehelper_exec_work [ 4.394027] Call Trace: [ 4.394027] dump_stack+0x1b9/0x294 [ 4.396028] ? dump_stack_print_info.cold.2+0x52/0x52 [ 4.397044] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 4.398028] ? call_usermodehelper_exec_work+0x290/0x310 [ 4.398028] panic+0x22f/0x4de [ 4.398028] ? add_taint.cold.5+0x16/0x16 [ 4.400026] ? do_raw_spin_unlock+0x9e/0x2e0 [ 4.401044] ? do_raw_spin_unlock+0x9e/0x2e0 [ 4.402027] ? call_usermodehelper_exec_work+0x2d3/0x310 [ 4.402027] kasan_end_report+0x47/0x4f [ 4.404027] kasan_report.cold.7+0x76/0x2fe [ 4.405046] __asan_report_store4_noabort+0x17/0x20 [ 4.406027] call_usermodehelper_exec_work+0x2d3/0x310 [ 4.406027] ? call_usermodehelper_exec_async+0x9e0/0x9e0 [ 4.408025] process_one_work+0xc64/0x1b70 [ 4.409043] ? finish_task_switch+0x28b/0x840 [ 4.409043] ? pwq_dec_nr_in_flight+0x490/0x490 [ 4.410028] ? __schedule+0x809/0x1e30 [ 4.410028] ? lock_downgrade+0x8e0/0x8e0 [ 4.410028] ? graph_lock+0x170/0x170 [ 4.412025] ? find_held_lock+0x36/0x1c0 [ 4.412025] ? find_held_lock+0x36/0x1c0 [ 4.413040] ? lock_acquire+0x1dc/0x520 [ 4.414027] ? worker_thread+0x3d4/0x13a0 [ 4.414027] ? lock_downgrade+0x8e0/0x8e0 [ 4.414027] ? lock_release+0xa10/0xa10 [ 4.416033] ? kasan_check_read+0x11/0x20 [ 4.416944] input: AT Translated Set 2 keyboard as /devices/platform/i8042/serio0/input/input2 [ 4.416033] ? do_raw_spin_trylock+0x1b0/0x1b0 [ 4.416033] worker_thread+0x181/0x13a0 [ 4.416033] ? process_one_work+0x1b70/0x1b70 [ 4.421515] ? graph_lock+0x170/0x170 [ 4.423159] ? find_held_lock+0x36/0x1c0 [ 4.423159] ? schedule+0xef/0x430 [ 4.424036] ? __schedule+0x1e30/0x1e30 [ 4.425048] ? do_raw_spin_unlock+0x9e/0x2e0 [ 4.426030] ? do_raw_spin_trylock+0x1b0/0x1b0 [ 4.426030] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 4.426030] ? __kthread_parkme+0x111/0x1d0 [ 4.428027] ? parse_args.cold.15+0x1b3/0x1b3 [ 4.429044] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 4.430030] ? trace_hardirqs_on+0xd/0x10 [ 4.430030] kthread+0x345/0x410 [ 4.430030] ? process_one_work+0x1b70/0x1b70 [ 4.432026] ? kthread_bind+0x40/0x40 [ 4.433041] ret_from_fork+0x3a/0x50 [ 4.433041] Dumping ftrace buffer: [ 4.433041] (ftrace buffer empty) [ 4.433041] Kernel Offset: disabled [ 4.433041] Rebooting in 86400 seconds..