[ 0.000000][ T0] Linux version 5.5.0-rc7-next-20200121-syzkaller (syzkaller@syzkaller) (gcc version 9.0.0 20181231 (experimental) (GCC)) #0 SMP PREEMPT now [ 0.000000][ T0] 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 lsm=lockdown,yama,safesetid,integrity,tomoyo,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 netrom.nr_ndevs=16 rose.rose_ndevs=16 spec_store_bypass_disable=prctl numa=fake=2 nopcid dummy_hcd.num=8 binder.debug_mask=0 [ 0.000000][ T0] KERNEL supported cpus: [ 0.000000][ T0] Intel GenuineIntel [ 0.000000][ T0] AMD AuthenticAMD [ 0.000000][ T0] Centaur CentaurHauls [ 0.000000][ T0] x86/fpu: Supporting XSAVE feature 0x001: 'x87 floating point registers' [ 0.000000][ T0] x86/fpu: Supporting XSAVE feature 0x002: 'SSE registers' [ 0.000000][ T0] x86/fpu: Supporting XSAVE feature 0x004: 'AVX registers' [ 0.000000][ T0] x86/fpu: xstate_offset[2]: 576, xstate_sizes[2]: 256 [ 0.000000][ T0] x86/fpu: Enabled xstate features 0x7, context size is 832 bytes, using 'standard' format. [ 0.000000][ T0] BIOS-provided physical RAM map: [ 0.000000][ T0] BIOS-e820: [mem 0x0000000000000000-0x000000000009fbff] usable [ 0.000000][ T0] BIOS-e820: [mem 0x000000000009fc00-0x000000000009ffff] reserved [ 0.000000][ T0] BIOS-e820: [mem 0x00000000000f0000-0x00000000000fffff] reserved [ 0.000000][ T0] BIOS-e820: [mem 0x0000000000100000-0x00000000bfffcfff] usable [ 0.000000][ T0] BIOS-e820: [mem 0x00000000bfffd000-0x00000000bfffffff] reserved [ 0.000000][ T0] BIOS-e820: [mem 0x00000000fffbc000-0x00000000ffffffff] reserved [ 0.000000][ T0] BIOS-e820: [mem 0x0000000100000000-0x000000021fffffff] usable [ 0.000000][ T0] printk: bootconsole [earlyser0] enabled [ 0.000000][ T0] Malformed early option 'vsyscall' [ 0.000000][ T0] nopcid: PCID feature disabled [ 0.000000][ T0] NX (Execute Disable) protection: active [ 0.000000][ T0] SMBIOS 2.4 present. [ 0.000000][ T0] DMI: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000][ T0] Hypervisor detected: KVM [ 0.000000][ T0] kvm-clock: Using msrs 4b564d01 and 4b564d00 [ 0.000006][ T0] kvm-clock: cpu 0, msr ae1d001, primary cpu clock [ 0.000007][ T0] kvm-clock: using sched offset of 4420785479 cycles [ 0.001696][ T0] clocksource: kvm-clock: mask: 0xffffffffffffffff max_cycles: 0x1cd42e4dffb, max_idle_ns: 881590591483 ns [ 0.006965][ T0] tsc: Detected 2300.000 MHz processor [ 0.010466][ T0] last_pfn = 0x220000 max_arch_pfn = 0x400000000 [ 0.012350][ T0] x86/PAT: Configuration [0-7]: WB WC UC- UC WB WP UC- WT [ 0.015838][ T0] last_pfn = 0xbfffd max_arch_pfn = 0x400000000 [ 0.023576][ T0] found SMP MP-table at [mem 0x000f2470-0x000f247f] [ 0.025593][ T0] check: Scanning 1 areas for low memory corruption [ 0.027428][ T0] Using GB pages for direct mapping [ 0.031168][ T0] ACPI: Early table checksum verification disabled [ 0.033284][ T0] ACPI: RSDP 0x00000000000F21F0 000014 (v00 Google) [ 0.035426][ T0] ACPI: RSDT 0x00000000BFFFFFC0 000038 (v01 Google GOOGRSDT 00000001 GOOG 00000001) [ 0.039070][ T0] ACPI: FACP 0x00000000BFFFF380 0000F4 (v02 Google GOOGFACP 00000001 GOOG 00000001) [ 0.042043][ T0] ACPI: DSDT 0x00000000BFFFDAC0 0018BA (v01 Google GOOGDSDT 00000001 GOOG 00000001) [ 0.044176][ T0] ACPI: FACS 0x00000000BFFFDA80 000040 [ 0.045492][ T0] ACPI: FACS 0x00000000BFFFDA80 000040 [ 0.046860][ T0] ACPI: SRAT 0x00000000BFFFFEB0 0000C8 (v01 Google GOOGSRAT 00000001 GOOG 00000001) [ 0.049078][ T0] ACPI: APIC 0x00000000BFFFFE00 000076 (v01 Google GOOGAPIC 00000001 GOOG 00000001) [ 0.052022][ T0] ACPI: SSDT 0x00000000BFFFF480 000980 (v01 Google GOOGSSDT 00000001 GOOG 00000001) [ 0.054275][ T0] ACPI: WAET 0x00000000BFFFFE80 000028 (v01 Google GOOGWAET 00000001 GOOG 00000001) [ 0.056950][ T0] SRAT: PXM 0 -> APIC 0x00 -> Node 0 [ 0.058745][ T0] SRAT: PXM 0 -> APIC 0x01 -> Node 0 [ 0.060202][ T0] ACPI: SRAT: Node 0 PXM 0 [mem 0x00000000-0x0009ffff] [ 0.062936][ T0] ACPI: SRAT: Node 0 PXM 0 [mem 0x00100000-0xbfffffff] [ 0.065231][ T0] ACPI: SRAT: Node 0 PXM 0 [mem 0x100000000-0x21fffffff] [ 0.067497][ T0] NUMA: Node 0 [mem 0x00000000-0x0009ffff] + [mem 0x00100000-0xbfffffff] -> [mem 0x00000000-0xbfffffff] [ 0.070661][ T0] NUMA: Node 0 [mem 0x00000000-0xbfffffff] + [mem 0x100000000-0x21fffffff] -> [mem 0x00000000-0x21fffffff] [ 0.074277][ T0] Faking node 0 at [mem 0x0000000000000000-0x000000012fffffff] (4864MB) [ 0.075955][ T0] Faking node 1 at [mem 0x0000000130000000-0x000000021fffffff] (3840MB) [ 0.078205][ T0] NODE_DATA(0) allocated [mem 0x12fffb000-0x12fffffff] [ 0.081381][ T0] NODE_DATA(1) allocated [mem 0x21fff8000-0x21fffcfff] [ 0.136329][ T0] Zone ranges: [ 0.137412][ T0] DMA [mem 0x0000000000001000-0x0000000000ffffff] [ 0.139201][ T0] DMA32 [mem 0x0000000001000000-0x00000000ffffffff] [ 0.141374][ T0] Normal [mem 0x0000000100000000-0x000000021fffffff] [ 0.143172][ T0] Device empty [ 0.144366][ T0] Movable zone start for each node [ 0.146091][ T0] Early memory node ranges [ 0.147407][ T0] node 0: [mem 0x0000000000001000-0x000000000009efff] [ 0.149521][ T0] node 0: [mem 0x0000000000100000-0x00000000bfffcfff] [ 0.152061][ T0] node 0: [mem 0x0000000100000000-0x000000012fffffff] [ 0.154663][ T0] node 1: [mem 0x0000000130000000-0x000000021fffffff] [ 0.156972][ T0] Zeroed struct page in unavailable ranges: 101 pages [ 0.156980][ T0] Initmem setup node 0 [mem 0x0000000000001000-0x000000012fffffff] [ 0.218440][ T0] Initmem setup node 1 [mem 0x0000000130000000-0x000000021fffffff] [ 0.914420][ T0] kasan: KernelAddressSanitizer initialized [ 0.916782][ T0] ACPI: PM-Timer IO Port: 0xb008 [ 0.918685][ T0] ACPI: LAPIC_NMI (acpi_id[0xff] dfl dfl lint[0x1]) [ 0.920512][ T0] IOAPIC[0]: apic_id 0, version 17, address 0xfec00000, GSI 0-23 [ 0.922900][ T0] ACPI: INT_SRC_OVR (bus 0 bus_irq 5 global_irq 5 high level) [ 0.925147][ T0] ACPI: INT_SRC_OVR (bus 0 bus_irq 9 global_irq 9 high level) [ 0.926946][ T0] ACPI: INT_SRC_OVR (bus 0 bus_irq 10 global_irq 10 high level) [ 0.929156][ T0] ACPI: INT_SRC_OVR (bus 0 bus_irq 11 global_irq 11 high level) [ 0.930483][ T0] Using ACPI (MADT) for SMP configuration information [ 0.932795][ T0] smpboot: Allowing 2 CPUs, 0 hotplug CPUs [ 0.934949][ T0] PM: hibernation: Registered nosave memory: [mem 0x00000000-0x00000fff] [ 0.937064][ T0] PM: hibernation: Registered nosave memory: [mem 0x0009f000-0x0009ffff] [ 0.939297][ T0] PM: hibernation: Registered nosave memory: [mem 0x000a0000-0x000effff] [ 0.942427][ T0] PM: hibernation: Registered nosave memory: [mem 0x000f0000-0x000fffff] [ 0.944322][ T0] PM: hibernation: Registered nosave memory: [mem 0xbfffd000-0xbfffffff] [ 0.946407][ T0] PM: hibernation: Registered nosave memory: [mem 0xc0000000-0xfffbbfff] [ 0.948542][ T0] PM: hibernation: Registered nosave memory: [mem 0xfffbc000-0xffffffff] [ 0.950118][ T0] [mem 0xc0000000-0xfffbbfff] available for PCI devices [ 0.952013][ T0] Booting paravirtualized kernel on KVM [ 0.953629][ T0] clocksource: refined-jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604462750000 ns [ 0.956530][ T0] setup_percpu: NR_CPUS:64 nr_cpumask_bits:64 nr_cpu_ids:2 nr_node_ids:2 [ 0.959440][ T0] percpu: Embedded 66 pages/cpu s232520 r8192 d29624 u1048576 [ 0.961016][ T0] PV qspinlock hash table entries: 256 (order: 0, 4096 bytes, linear) [ 0.963600][ T0] Built 2 zonelists, mobility grouping on. Total pages: 1935238 [ 0.965501][ T0] Policy zone: Normal [ 0.966702][ T0] 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 lsm=lockdown,yama,safesetid,integrity,tomoyo,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 netrom.nr_ndevs=16 rose.rose_ndevs=16 spec_store_bypass_disable=prctl numa=fake=2 nopcid dummy_hcd.num=8 binder.debug_mask=0 [ 0.983630][ T0] mem auto-init: stack:off, heap alloc:on, heap free:off [ 1.928947][ T0] Memory: 6479668K/7863916K available (116745K kernel code, 16928K rwdata, 21196K rodata, 2880K init, 24644K bss, 1384248K reserved, 0K cma-reserved) [ 1.938987][ T0] Running RCU self tests [ 1.940035][ T0] rcu: Preemptible hierarchical RCU implementation. [ 1.941902][ T0] rcu: RCU lockdep checking is enabled. [ 1.943190][ T0] rcu: RCU restricting CPUs from NR_CPUS=64 to nr_cpu_ids=2. [ 1.945614][ T0] rcu: RCU callback double-/use-after-free debug enabled. [ 1.947824][ T0] Tasks RCU enabled. [ 1.949003][ T0] rcu: RCU calculated value of scheduler-enlistment delay is 10 jiffies. [ 1.951074][ T0] rcu: Adjusting geometry for rcu_fanout_leaf=16, nr_cpu_ids=2 [ 1.961063][ T0] NR_IRQS: 4352, nr_irqs: 440, preallocated irqs: 16 [ 1.963318][ T0] random: get_random_bytes called from start_kernel+0x974/0xd63 with crng_init=0 [ 1.967304][ T0] Console: colour VGA+ 80x25 [ 1.969988][ T0] printk: console [ttyS0] enabled [ 1.969988][ T0] printk: console [ttyS0] enabled [ 1.972162][ T0] printk: bootconsole [earlyser0] disabled [ 1.972162][ T0] printk: bootconsole [earlyser0] disabled [ 1.975458][ T0] Lock dependency validator: Copyright (c) 2006 Red Hat, Inc., Ingo Molnar [ 1.978428][ T0] ... MAX_LOCKDEP_SUBCLASSES: 8 [ 1.980237][ T0] ... MAX_LOCK_DEPTH: 48 [ 1.981346][ T0] ... MAX_LOCKDEP_KEYS: 8192 [ 1.983202][ T0] ... CLASSHASH_SIZE: 4096 [ 1.984943][ T0] ... MAX_LOCKDEP_ENTRIES: 32768 [ 1.986543][ T0] ... MAX_LOCKDEP_CHAINS: 65536 [ 1.987957][ T0] ... CHAINHASH_SIZE: 32768 [ 1.989619][ T0] memory used by lock dependency info: 6237 kB [ 1.991522][ T0] memory used for stack traces: 4224 kB [ 1.993485][ T0] per task-struct memory footprint: 1920 bytes [ 1.995961][ T0] mempolicy: Enabling automatic NUMA balancing. Configure with numa_balancing= or the kernel.numa_balancing sysctl [ 1.999357][ T0] ACPI: Core revision 20200110 [ 2.002083][ T0] APIC: Switch to symmetric I/O mode setup [ 2.004437][ T0] x2apic enabled [ 2.007269][ T0] Switched APIC routing to physical x2apic. [ 2.013595][ T0] ..TIMER: vector=0x30 apic1=0 pin1=0 apic2=-1 pin2=-1 [ 2.015636][ T0] clocksource: tsc-early: mask: 0xffffffffffffffff max_cycles: 0x212735223b2, max_idle_ns: 440795277976 ns [ 2.018997][ T0] Calibrating delay loop (skipped) preset value.. 4600.00 BogoMIPS (lpj=23000000) [ 2.021517][ T0] pid_max: default: 32768 minimum: 301 [ 2.030235][ T0] LSM: Security Framework initializing [ 2.031668][ T0] LSM: security= is ignored because it is superseded by lsm= [ 2.033667][ T0] Yama: becoming mindful. [ 2.035216][ T0] TOMOYO Linux initialized [ 2.036875][ T0] AppArmor: AppArmor initialized [ 2.048264][ T0] Dentry cache hash table entries: 1048576 (order: 11, 8388608 bytes, vmalloc) [ 2.056527][ T0] Inode-cache hash table entries: 524288 (order: 10, 4194304 bytes, vmalloc) [ 2.059346][ T0] Mount-cache hash table entries: 16384 (order: 5, 131072 bytes, vmalloc) [ 2.061950][ T0] Mountpoint-cache hash table entries: 16384 (order: 5, 131072 bytes, vmalloc) [ 2.064957][ T0] *** VALIDATE tmpfs *** [ 2.068041][ T0] *** VALIDATE proc *** [ 2.069905][ T0] *** VALIDATE cgroup1 *** [ 2.071027][ T0] *** VALIDATE cgroup2 *** [ 2.072521][ T0] Last level iTLB entries: 4KB 1024, 2MB 1024, 4MB 1024 [ 2.074456][ T0] Last level dTLB entries: 4KB 1024, 2MB 1024, 4MB 1024, 1GB 4 [ 2.077074][ T0] Spectre V1 : Mitigation: usercopy/swapgs barriers and __user pointer sanitization [ 2.079043][ T0] Spectre V2 : Spectre mitigation: kernel not compiled with retpoline; no mitigation available! [ 2.079080][ T0] Speculative Store Bypass: Mitigation: Speculative Store Bypass disabled via prctl [ 2.083118][ T0] MDS: Mitigation: Clear CPU buffers [ 2.084968][ T0] Freeing SMP alternatives memory: 96K [ 2.210149][ T1] smpboot: CPU0: Intel(R) Xeon(R) CPU @ 2.30GHz (family: 0x6, model: 0x3f, stepping: 0x0) [ 2.269087][ T1] Performance Events: unsupported p6 CPU model 63 no PMU driver, software events only. [ 2.289033][ T1] rcu: Hierarchical SRCU implementation. [ 2.329031][ T1] smp: Bringing up secondary CPUs ... [ 2.412280][ T1] x86: Booting SMP configuration: [ 2.413611][ T1] .... node #0, CPUs: #1 [ 0.055821][ T0] kvm-clock: cpu 1, msr ae1d041, secondary cpu clock [ 2.419419][ T1] MDS CPU bug present and SMT on, data leak possible. See https://www.kernel.org/doc/html/latest/admin-guide/hw-vuln/mds.html for more details. [ 2.423895][ T1] smp: Brought up 2 nodes, 2 CPUs [ 2.425700][ T1] smpboot: Max logical packages: 1 [ 2.426980][ T1] smpboot: Total of 2 processors activated (9200.00 BogoMIPS) [ 2.429433][ T1] NMI watchdog: Perf NMI watchdog permanently disabled [ 2.440421][ T1] devtmpfs: initialized [ 2.441264][ T1] x86/mm: Memory block size: 128MB [ 2.472145][ T1] clocksource: jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604462750000 ns [ 2.472677][ T1] futex hash table entries: 512 (order: 4, 65536 bytes, vmalloc) [ 2.480240][ T1] xor: automatically using best checksumming function avx [ 2.483347][ T1] PM: RTC time: 14:20:52, date: 2020-01-21 [ 2.485256][ T1] thermal_sys: Registered thermal governor 'step_wise' [ 2.485262][ T1] thermal_sys: Registered thermal governor 'user_space' [ 2.490919][ T26] kworker/u4:0 (26) used greatest stack depth: 26768 bytes left [ 2.496085][ T1] NET: Registered protocol family 16 [ 2.501441][ T1] audit: initializing netlink subsys (disabled) [ 2.502805][ T27] audit: type=2000 audit(1579616452.044:1): state=initialized audit_enabled=0 res=1 [ 2.502805][ T1] cpuidle: using governor menu [ 2.512342][ T1] ACPI: bus type PCI registered [ 2.516022][ T1] dca service started, version 1.12.1 [ 2.518407][ T1] PCI: Using configuration type 1 for base access [ 3.020652][ T1] WARNING: workqueue cpumask: online intersect > possible intersect [ 3.031677][ T1] HugeTLB registered 1.00 GiB page size, pre-allocated 0 pages [ 3.033796][ T1] HugeTLB registered 2.00 MiB page size, pre-allocated 0 pages [ 3.101229][ T1] cryptd: max_cpu_qlen set to 1000 [ 3.339111][ T1] raid6: avx2x4 gen() 7424 MB/s [ 3.509029][ T1] raid6: avx2x4 xor() 4423 MB/s [ 3.679029][ T1] raid6: avx2x2 gen() 6242 MB/s [ 3.849026][ T1] raid6: avx2x2 xor() 3043 MB/s [ 4.019028][ T1] raid6: avx2x1 gen() 3942 MB/s [ 4.189039][ T1] raid6: avx2x1 xor() 1685 MB/s [ 4.349018][ T1] raid6: sse2x4 gen() 4724 MB/s [ 4.519029][ T1] raid6: sse2x4 xor() 2578 MB/s [ 4.689031][ T1] raid6: sse2x2 gen() 3425 MB/s [ 4.859021][ T1] raid6: sse2x2 xor() 1617 MB/s [ 5.029044][ T1] raid6: sse2x1 gen() 1985 MB/s [ 5.209003][ T1] raid6: sse2x1 xor() 835 MB/s [ 5.210670][ T1] raid6: using algorithm avx2x4 gen() 7424 MB/s [ 5.212032][ T1] raid6: .... xor() 4423 MB/s, rmw enabled [ 5.213452][ T1] raid6: using avx2x2 recovery algorithm [ 5.215810][ T1] ACPI: Added _OSI(Module Device) [ 5.217526][ T1] ACPI: Added _OSI(Processor Device) [ 5.218471][ T1] ACPI: Added _OSI(3.0 _SCP Extensions) [ 5.219023][ T1] ACPI: Added _OSI(Processor Aggregator Device) [ 5.220915][ T1] ACPI: Added _OSI(Linux-Dell-Video) [ 5.222833][ T1] ACPI: Added _OSI(Linux-Lenovo-NV-HDMI-Audio) [ 5.224536][ T1] ACPI: Added _OSI(Linux-HPI-Hybrid-Graphics) [ 5.272594][ T1] ACPI: 2 ACPI AML tables successfully acquired and loaded [ 5.348990][ T1] ACPI: Interpreter enabled [ 5.348990][ T1] ACPI: (supports S0 S3 S4 S5) [ 5.348990][ T1] ACPI: Using IOAPIC for interrupt routing [ 5.349072][ T1] PCI: Using host bridge windows from ACPI; if necessary, use "pci=nocrs" and report a bug [ 5.359869][ T1] ACPI: Enabled 16 GPEs in block 00 to 0F [ 5.451161][ T1] ACPI: PCI Root Bridge [PCI0] (domain 0000 [bus 00-ff]) [ 5.452821][ T1] acpi PNP0A03:00: _OSC: OS supports [ASPM ClockPM Segments MSI HPX-Type3] [ 5.454546][ T1] acpi PNP0A03:00: fail to add MMCONFIG information, can't access extended PCI configuration space under this bridge. [ 5.459083][ T1] PCI host bridge to bus 0000:00 [ 5.459083][ T1] pci_bus 0000:00: Unknown NUMA node; performance will be reduced [ 5.459083][ T1] pci_bus 0000:00: root bus resource [io 0x0000-0x0cf7 window] [ 5.459083][ T1] pci_bus 0000:00: root bus resource [io 0x0d00-0xffff window] [ 5.469041][ T1] pci_bus 0000:00: root bus resource [mem 0x000a0000-0x000bffff window] [ 5.470524][ T1] pci_bus 0000:00: root bus resource [mem 0xc0000000-0xfebfffff window] [ 5.473352][ T1] pci_bus 0000:00: root bus resource [bus 00-ff] [ 5.475960][ T1] pci 0000:00:00.0: [8086:1237] type 00 class 0x060000 [ 5.486520][ T1] pci 0000:00:01.0: [8086:7110] type 00 class 0x060100 [ 5.528007][ T1] pci 0000:00:01.3: [8086:7113] type 00 class 0x068000 [ 5.560198][ T1] pci 0000:00:01.3: quirk: [io 0xb000-0xb03f] claimed by PIIX4 ACPI [ 5.566378][ T1] pci 0000:00:03.0: [1af4:1004] type 00 class 0x000000 [ 5.568984][ T1] pci 0000:00:03.0: reg 0x10: [io 0xc000-0xc03f] [ 5.586637][ T1] pci 0000:00:03.0: reg 0x14: [mem 0xfebfd000-0xfebfd07f] [ 5.612051][ T1] pci 0000:00:04.0: [1af4:1000] type 00 class 0x020000 [ 5.629063][ T1] pci 0000:00:04.0: reg 0x10: [io 0xc040-0xc07f] [ 5.637351][ T1] pci 0000:00:04.0: reg 0x14: [mem 0xfebfe000-0xfebfe07f] [ 5.663850][ T1] pci 0000:00:05.0: [1af4:1005] type 00 class 0x00ff00 [ 5.676381][ T1] pci 0000:00:05.0: reg 0x10: [io 0xc080-0xc09f] [ 5.684572][ T1] pci 0000:00:05.0: reg 0x14: [mem 0xfebff000-0xfebff03f] [ 5.721269][ T1] ACPI: PCI Interrupt Link [LNKA] (IRQs 5 *10 11) [ 5.726444][ T1] ACPI: PCI Interrupt Link [LNKB] (IRQs 5 *10 11) [ 5.730571][ T1] ACPI: PCI Interrupt Link [LNKC] (IRQs 5 10 *11) [ 5.736037][ T1] ACPI: PCI Interrupt Link [LNKD] (IRQs 5 10 *11) [ 5.742083][ T1] ACPI: PCI Interrupt Link [LNKS] (IRQs *9) [ 5.759065][ T1] iommu: Default domain type: Translated [ 5.762005][ T1] vgaarb: loaded [ 5.765499][ T1] SCSI subsystem initialized [ 5.770693][ T1] ACPI: bus type USB registered [ 5.772910][ T1] usbcore: registered new interface driver usbfs [ 5.779051][ T1] usbcore: registered new interface driver hub [ 5.781137][ T1] usbcore: registered new device driver usb [ 5.783392][ T1] mc: Linux media interface: v0.10 [ 5.785272][ T1] videodev: Linux video capture interface: v2.00 [ 5.789490][ T1] pps_core: LinuxPPS API ver. 1 registered [ 5.791574][ T1] pps_core: Software ver. 5.3.6 - Copyright 2005-2007 Rodolfo Giometti [ 5.793947][ T1] PTP clock support registered [ 5.799477][ T1] EDAC MC: Ver: 3.0.0 [ 5.801854][ T1] Advanced Linux Sound Architecture Driver Initialized. [ 5.803272][ T1] PCI: Using ACPI for IRQ routing [ 5.813276][ T1] Bluetooth: Core ver 2.22 [ 5.814653][ T1] NET: Registered protocol family 31 [ 5.815664][ T1] Bluetooth: HCI device and connection manager initialized [ 5.817331][ T1] Bluetooth: HCI socket layer initialized [ 5.818784][ T1] Bluetooth: L2CAP socket layer initialized [ 5.819081][ T1] Bluetooth: SCO socket layer initialized [ 5.820735][ T1] NET: Registered protocol family 8 [ 5.821828][ T1] NET: Registered protocol family 20 [ 5.823023][ T1] NetLabel: Initializing [ 5.823947][ T1] NetLabel: domain hash size = 128 [ 5.824745][ T1] NetLabel: protocols = UNLABELED CIPSOv4 CALIPSO [ 5.826722][ T1] NetLabel: unlabeled traffic allowed by default [ 5.830428][ T1] nfc: nfc_init: NFC Core ver 0.1 [ 5.831858][ T1] NET: Registered protocol family 39 [ 5.833227][ T1] clocksource: Switched to clocksource kvm-clock [ 8.690643][ T1] *** VALIDATE bpf *** [ 8.695309][ T1] VFS: Disk quotas dquot_6.6.0 [ 8.699454][ T1] VFS: Dquot-cache hash table entries: 512 (order 0, 4096 bytes) [ 8.701695][ T1] FS-Cache: Loaded [ 8.702717][ T1] *** VALIDATE ramfs *** [ 8.703880][ T1] *** VALIDATE hugetlbfs *** [ 8.707209][ T1] CacheFiles: Loaded [ 8.708486][ T1] TOMOYO: 2.6.0 [ 8.710158][ T1] Mandatory Access Control activated. [ 8.713085][ T1] AppArmor: AppArmor Filesystem Enabled [ 8.715019][ T1] pnp: PnP ACPI init [ 8.727952][ T1] pnp: PnP ACPI: found 7 devices [ 8.808802][ T1] clocksource: acpi_pm: mask: 0xffffff max_cycles: 0xffffff, max_idle_ns: 2085701024 ns [ 8.811041][ T1] pci_bus 0000:00: resource 4 [io 0x0000-0x0cf7 window] [ 8.812210][ T1] pci_bus 0000:00: resource 5 [io 0x0d00-0xffff window] [ 8.813470][ T1] pci_bus 0000:00: resource 6 [mem 0x000a0000-0x000bffff window] [ 8.816731][ T1] pci_bus 0000:00: resource 7 [mem 0xc0000000-0xfebfffff window] [ 8.819652][ T1] NET: Registered protocol family 2 [ 8.823895][ T1] tcp_listen_portaddr_hash hash table entries: 4096 (order: 6, 294912 bytes, vmalloc) [ 8.826474][ T1] TCP established hash table entries: 65536 (order: 7, 524288 bytes, vmalloc) [ 8.835733][ T1] TCP bind hash table entries: 65536 (order: 10, 4194304 bytes, vmalloc) [ 8.841081][ T1] TCP: Hash tables configured (established 65536 bind 65536) [ 8.844734][ T1] UDP hash table entries: 4096 (order: 7, 655360 bytes, vmalloc) [ 8.848558][ T1] UDP-Lite hash table entries: 4096 (order: 7, 655360 bytes, vmalloc) [ 8.852799][ T1] NET: Registered protocol family 1 [ 8.855669][ T1] RPC: Registered named UNIX socket transport module. [ 8.857978][ T1] RPC: Registered udp transport module. [ 8.859532][ T1] RPC: Registered tcp transport module. [ 8.860530][ T1] RPC: Registered tcp NFSv4.1 backchannel transport module. [ 8.863228][ T1] NET: Registered protocol family 44 [ 8.864293][ T1] pci 0000:00:00.0: Limiting direct PCI/PCI transfers [ 8.865966][ T1] PCI: CLS 0 bytes, default 64 [ 8.870663][ T1] PCI-DMA: Using software bounce buffering for IO (SWIOTLB) [ 8.873866][ T1] software IO TLB: mapped [mem 0xaa800000-0xae800000] (64MB) [ 8.878669][ T1] RAPL PMU: API unit is 2^-32 Joules, 0 fixed counters, 10737418240 ms ovfl timer [ 8.883264][ T1] kvm: already loaded the other module [ 8.884583][ T1] clocksource: tsc: mask: 0xffffffffffffffff max_cycles: 0x212735223b2, max_idle_ns: 440795277976 ns [ 8.886886][ T1] clocksource: Switched to clocksource tsc [ 8.888240][ T1] mce: Machine check injector initialized [ 8.895124][ T1] check: Scanning for low memory corruption every 60 seconds [ 9.016047][ T1] Initialise system trusted keyrings [ 9.018687][ T1] workingset: timestamp_bits=40 max_order=21 bucket_order=0 [ 9.022248][ T1] zbud: loaded [ 9.027156][ T1] DLM installed [ 9.031713][ T1] squashfs: version 4.0 (2009/01/31) Phillip Lougher [ 9.036456][ T1] FS-Cache: Netfs 'nfs' registered for caching [ 9.039571][ T1] *** VALIDATE nfs *** [ 9.040682][ T1] *** VALIDATE nfs *** [ 9.042997][ T1] NFS: Registering the id_resolver key type [ 9.044762][ T1] Key type id_resolver registered [ 9.045841][ T1] Key type id_legacy registered [ 9.046948][ T1] nfs4filelayout_init: NFSv4 File Layout Driver Registering... [ 9.048332][ T1] Installing knfsd (copyright (C) 1996 okir@monad.swb.de). [ 9.055110][ T1] FS-Cache: Netfs 'cifs' registered for caching [ 9.058011][ T1] Key type cifs.spnego registered [ 9.060385][ T1] Key type cifs.idmap registered [ 9.061435][ T1] ntfs: driver 2.1.32 [Flags: R/W]. [ 9.064103][ T1] fuse: init (API version 7.31) [ 9.065381][ T1] *** VALIDATE fuse *** [ 9.066441][ T1] *** VALIDATE fuse *** [ 9.070224][ T1] JFS: nTxBlock = 8192, nTxLock = 65536 [ 9.086227][ T1] SGI XFS with ACLs, security attributes, realtime, quota, no debug enabled [ 9.091705][ T1] *** VALIDATE xfs *** [ 9.092700][ T1] 9p: Installing v9fs 9p2000 file system support [ 9.094116][ T1] FS-Cache: Netfs '9p' registered for caching [ 9.095914][ T1] ocfs2: Registered cluster interface o2cb [ 9.097485][ T1] ocfs2: Registered cluster interface user [ 9.099842][ T1] OCFS2 User DLM kernel interface loaded [ 9.109679][ T1] *** VALIDATE gfs2 *** [ 9.111886][ T1] gfs2: GFS2 installed [ 9.115232][ T1] FS-Cache: Netfs 'ceph' registered for caching [ 9.117349][ T1] ceph: loaded (mds proto 32) [ 9.125702][ T1] NET: Registered protocol family 38 [ 9.127715][ T1] async_tx: api initialized (async) [ 9.128520][ T1] Key type asymmetric registered [ 9.129544][ T1] Asymmetric key parser 'x509' registered [ 9.131123][ T1] Asymmetric key parser 'pkcs8' registered [ 9.132398][ T1] Key type pkcs7_test registered [ 9.133912][ T1] Asymmetric key parser 'tpm_parser' registered [ 9.134981][ T1] Block layer SCSI generic (bsg) driver version 0.4 loaded (major 243) [ 9.138850][ T1] io scheduler mq-deadline registered [ 9.140263][ T1] io scheduler kyber registered [ 9.141385][ T1] io scheduler bfq registered [ 9.148789][ T1] hgafb: HGA card not detected. [ 9.149731][ T1] hgafb: probe of hgafb.0 failed with error -22 [ 9.151473][ T1] usbcore: registered new interface driver udlfb [ 9.154671][ T1] uvesafb: failed to execute /sbin/v86d [ 9.155541][ T1] uvesafb: make sure that the v86d helper is installed and executable [ 9.157748][ T1] uvesafb: Getting VBE info block failed (eax=0x4f00, err=-2) [ 9.159603][ T1] uvesafb: vbe_init() failed with -22 [ 9.160564][ T1] uvesafb: probe of uvesafb.0 failed with error -22 [ 9.162583][ T1] vga16fb: mapped to 0x00000000516db615 [ 9.230950][ T1] Console: switching to colour frame buffer device 80x30 [ 9.562396][ T1] fb0: VGA16 VGA frame buffer device [ 9.565536][ T1] input: Power Button as /devices/LNXSYSTM:00/LNXPWRBN:00/input/input0 [ 9.579814][ T1] ACPI: Power Button [PWRF] [ 9.581851][ T1] input: Sleep Button as /devices/LNXSYSTM:00/LNXSLPBN:00/input/input1 [ 9.583864][ T1] ACPI: Sleep Button [SLPF] [ 9.590795][ T1] ioatdma: Intel(R) QuickData Technology Driver 5.00 [ 9.604055][ T1] PCI Interrupt Link [LNKC] enabled at IRQ 11 [ 9.605599][ T1] virtio-pci 0000:00:03.0: virtio_pci: leaving for legacy driver [ 9.621320][ T1] PCI Interrupt Link [LNKD] enabled at IRQ 10 [ 9.623913][ T1] virtio-pci 0000:00:04.0: virtio_pci: leaving for legacy driver [ 9.641875][ T1] PCI Interrupt Link [LNKA] enabled at IRQ 10 [ 9.643051][ T1] virtio-pci 0000:00:05.0: virtio_pci: leaving for legacy driver [ 9.942870][ T1] HDLC line discipline maxframe=4096 [ 9.944977][ T1] N_HDLC line discipline registered. [ 9.946595][ T1] Serial: 8250/16550 driver, 4 ports, IRQ sharing enabled [ 9.948464][ T1] 00:03: ttyS0 at I/O 0x3f8 (irq = 4, base_baud = 115200) is a 16550A [ 9.955031][ T1] 00:04: ttyS1 at I/O 0x2f8 (irq = 3, base_baud = 115200) is a 16550A [ 9.962803][ T1] 00:05: ttyS2 at I/O 0x3e8 (irq = 6, base_baud = 115200) is a 16550A [ 9.968015][ T1] 00:06: ttyS3 at I/O 0x2e8 (irq = 7, base_baud = 115200) is a 16550A [ 9.974686][ T1] Cyclades driver 2.6 [ 9.978205][ T1] Initializing Nozomi driver 2.1d [ 9.980953][ T1] RocketPort device driver module, version 2.09, 12-June-2003 [ 9.983960][ T1] No rocketport ports found; unloading driver [ 9.987440][ T1] Non-volatile memory driver v1.3 [ 9.989611][ T1] Linux agpgart interface v0.103 [ 9.998795][ T1] [drm] Initialized vgem 1.0.0 20120112 for vgem on minor 0 [ 10.001216][ T1] [drm] Supports vblank timestamp caching Rev 2 (21.10.2013). [ 10.002456][ T1] [drm] Driver supports precise vblank timestamp query. [ 10.005957][ T1] [drm] Initialized vkms 1.0.0 20180514 for vkms on minor 1 [ 10.007420][ T1] usbcore: registered new interface driver udl [ 10.056296][ T1] brd: module loaded [ 10.090927][ T1] loop: module loaded [ 10.256861][ T1] zram: Added device: zram0 [ 10.284069][ T1] null_blk: module loaded [ 10.292805][ T1] nfcsim 0.2 initialized [ 10.298255][ T1] Loading iSCSI transport class v2.0-870. [ 10.347352][ T1] scsi host0: Virtio SCSI HBA [ 10.389461][ T1] st: Version 20160209, fixed bufsize 32768, s/g segs 256 [ 10.394689][ T250] scsi 0:0:1:0: Direct-Access Google PersistentDisk 1 PQ: 0 ANSI: 6 [ 10.430978][ T1] slram: not enough parameters. [ 10.443147][ T1] ftl_cs: FTL header not found. [ 10.565259][ T1] Ethernet Channel Bonding Driver: v3.7.1 (April 27, 2011) [ 10.590427][ T1] wireguard: WireGuard 1.0.0 loaded. See www.wireguard.com for information. [ 10.594002][ T1] wireguard: Copyright (C) 2015-2019 Jason A. Donenfeld . All Rights Reserved. [ 10.598585][ T1] eql: Equalizer2002: Simon Janes (simon@ncm.com) and David S. Miller (davem@redhat.com) [ 10.610830][ T1] MACsec IEEE 802.1AE [ 10.613310][ T1] tun: Universal TUN/TAP device driver, 1.6 [ 10.668115][ T1] vcan: Virtual CAN interface driver [ 10.670121][ T1] vxcan: Virtual CAN Tunnel driver [ 10.671804][ T1] slcan: serial line CAN interface driver [ 10.673243][ T1] slcan: 10 dynamic interface channels. [ 10.674687][ T1] CAN device driver interface [ 10.676134][ T1] enic: Cisco VIC Ethernet NIC Driver, ver 2.3.0.53 [ 10.678327][ T1] e100: Intel(R) PRO/100 Network Driver, 3.5.24-k2-NAPI [ 10.682362][ T1] e100: Copyright(c) 1999-2006 Intel Corporation [ 10.684758][ T1] e1000: Intel(R) PRO/1000 Network Driver - version 7.3.21-k8-NAPI [ 10.686276][ T1] e1000: Copyright (c) 1999-2006 Intel Corporation. [ 10.688086][ T1] e1000e: Intel(R) PRO/1000 Network Driver - 3.2.6-k [ 10.690118][ T1] e1000e: Copyright(c) 1999 - 2015 Intel Corporation. [ 10.704425][ T1] mkiss: AX.25 Multikiss, Hans Albas PE1AYX [ 10.706505][ T1] AX.25: 6pack driver, Revision: 0.3.0 [ 10.708468][ T1] AX.25: bpqether driver version 004 [ 10.713331][ T1] PPP generic driver version 2.4.2 [ 10.715740][ T1] PPP BSD Compression module registered [ 10.717372][ T1] PPP Deflate Compression module registered [ 10.719403][ T1] PPP MPPE Compression module registered [ 10.722798][ T1] NET: Registered protocol family 24 [ 10.724673][ T1] PPTP driver version 0.8.5 [ 10.726902][ T1] SLIP: version 0.8.4-NET3.019-NEWTTY (dynamic channels, max=256) (6 bit encapsulation enabled). [ 10.731119][ T1] CSLIP: code copyright 1989 Regents of the University of California. [ 10.734122][ T1] SLIP linefill/keepalive option. [ 10.736188][ T1] hdlc: HDLC support module revision 1.22 [ 10.738133][ T1] x25_asy: X.25 async: version 0.00 ALPHA (dynamic channels, max=256) [ 10.738379][ C1] random: fast init done [ 10.740027][ T1] DLCI driver v0.35, 4 Jan 1997, mike.mclagan@linux.org. [ 10.742796][ T1] LAPB Ethernet driver version 0.02 [ 10.744814][ T1] usbcore: registered new interface driver rndis_wlan [ 10.747197][ T1] mac80211_hwsim: initializing netlink [ 10.753385][ T38] sd 0:0:1:0: [sda] 4194304 512-byte logical blocks: (2.15 GB/2.00 GiB) [ 10.755936][ T38] sd 0:0:1:0: [sda] 4096-byte physical blocks [ 10.759146][ T38] sd 0:0:1:0: [sda] Write Protect is off [ 10.760339][ T250] sd 0:0:1:0: Attached scsi generic sg0 type 0 [ 10.763337][ T38] sd 0:0:1:0: [sda] Write cache: enabled, read cache: enabled, doesn't support DPO or FUA [ 10.796890][ T1] fakelb driver is marked as deprecated, please use mac802154_hwsim! [ 10.807530][ T1] ieee802154fakelb ieee802154fakelb: added 2 fake ieee802154 hardware devices [ 10.822333][ T38] sda: sda1 [ 10.832316][ T38] sd 0:0:1:0: [sda] Attached SCSI disk [ 10.845411][ T1] mac802154_hwsim mac802154_hwsim: Added 2 mac802154 hwsim hardware radios [ 10.847703][ T1] VMware vmxnet3 virtual NIC driver - version 1.4.17.0-k-NAPI [ 10.850992][ T1] pegasus: v0.9.3 (2013/04/25), Pegasus/Pegasus II USB Ethernet driver [ 10.853033][ T1] usbcore: registered new interface driver pegasus [ 10.854583][ T1] usbcore: registered new interface driver rtl8150 [ 10.855996][ T1] usbcore: registered new interface driver r8152 [ 10.857492][ T1] usbcore: registered new interface driver asix [ 10.859253][ T1] usbcore: registered new interface driver ax88179_178a [ 10.860848][ T1] usbcore: registered new interface driver cdc_ether [ 10.863470][ T1] usbcore: registered new interface driver dm9601 [ 10.865822][ T1] usbcore: registered new interface driver smsc75xx [ 10.867654][ T1] usbcore: registered new interface driver smsc95xx [ 10.869923][ T1] usbcore: registered new interface driver net1080 [ 10.872198][ T1] usbcore: registered new interface driver rndis_host [ 10.873753][ T1] usbcore: registered new interface driver cdc_subset [ 10.876575][ T1] usbcore: registered new interface driver zaurus [ 10.878753][ T1] usbcore: registered new interface driver MOSCHIP usb-ethernet driver [ 10.880800][ T1] usbcore: registered new interface driver cdc_ncm [ 10.882571][ T1] usbcore: registered new interface driver cdc_mbim [ 10.908500][ T1] VFIO - User Level meta-driver version: 0.3 [ 10.916073][ T1] aoe: AoE v85 initialised. [ 10.921448][ T1] ehci_hcd: USB 2.0 'Enhanced' Host Controller (EHCI) Driver [ 10.923104][ T1] ehci-pci: EHCI PCI platform driver [ 10.924615][ T1] ohci_hcd: USB 1.1 'Open' Host Controller (OHCI) Driver [ 10.926037][ T1] ohci-pci: OHCI PCI platform driver [ 10.927206][ T1] uhci_hcd: USB Universal Host Controller Interface driver [ 10.930340][ T1] usbcore: registered new interface driver cdc_acm [ 10.932733][ T1] cdc_acm: USB Abstract Control Model driver for USB modems and ISDN adapters [ 10.935746][ T1] usbcore: registered new interface driver usblp [ 10.937126][ T1] usbcore: registered new interface driver cdc_wdm [ 10.941678][ T1] usbcore: registered new interface driver uas [ 10.943838][ T1] usbcore: registered new interface driver usb-storage [ 10.945460][ T1] usbcore: registered new interface driver ums-realtek [ 10.949750][ T1] usbcore: registered new interface driver usbserial_generic [ 10.952669][ T1] usbserial: USB Serial support registered for generic [ 10.954208][ T1] usbcore: registered new interface driver ch341 [ 10.955733][ T1] usbserial: USB Serial support registered for ch341-uart [ 10.957592][ T1] usbcore: registered new interface driver cp210x [ 10.960495][ T1] usbserial: USB Serial support registered for cp210x [ 10.962526][ T1] usbcore: registered new interface driver ftdi_sio [ 10.964236][ T1] usbserial: USB Serial support registered for FTDI USB Serial Device [ 10.966251][ T1] usbcore: registered new interface driver keyspan [ 10.967803][ T1] usbserial: USB Serial support registered for Keyspan - (without firmware) [ 10.970252][ T1] usbserial: USB Serial support registered for Keyspan 1 port adapter [ 10.971945][ T1] usbserial: USB Serial support registered for Keyspan 2 port adapter [ 10.974219][ T1] usbserial: USB Serial support registered for Keyspan 4 port adapter [ 10.976273][ T1] usbcore: registered new interface driver option [ 10.977836][ T1] usbserial: USB Serial support registered for GSM modem (1-port) [ 10.979676][ T1] usbcore: registered new interface driver oti6858 [ 10.981441][ T1] usbserial: USB Serial support registered for oti6858 [ 10.983010][ T1] usbcore: registered new interface driver pl2303 [ 10.984449][ T1] usbserial: USB Serial support registered for pl2303 [ 10.986047][ T1] usbcore: registered new interface driver qcserial [ 10.987419][ T1] usbserial: USB Serial support registered for Qualcomm USB modem [ 10.989395][ T1] usbcore: registered new interface driver sierra [ 10.990782][ T1] usbserial: USB Serial support registered for Sierra USB modem [ 10.992865][ T1] usbcore: registered new interface driver usb_serial_simple [ 10.994282][ T1] usbserial: USB Serial support registered for carelink [ 10.996041][ T1] usbserial: USB Serial support registered for zio [ 10.997577][ T1] usbserial: USB Serial support registered for funsoft [ 11.000458][ T1] usbserial: USB Serial support registered for flashloader [ 11.002306][ T1] usbserial: USB Serial support registered for google [ 11.003694][ T1] usbserial: USB Serial support registered for libtransistor [ 11.005735][ T1] usbserial: USB Serial support registered for vivopay [ 11.007601][ T1] usbserial: USB Serial support registered for moto_modem [ 11.009192][ T1] usbserial: USB Serial support registered for motorola_tetra [ 11.011785][ T1] usbserial: USB Serial support registered for novatel_gps [ 11.013252][ T1] usbserial: USB Serial support registered for hp4x [ 11.015101][ T1] usbserial: USB Serial support registered for suunto [ 11.016744][ T1] usbserial: USB Serial support registered for siemens_mpi [ 11.021622][ T1] dummy_hcd dummy_hcd.0: USB Host+Gadget Emulator, driver 02 May 2005 [ 11.024372][ T1] dummy_hcd dummy_hcd.0: Dummy host controller [ 11.027134][ T1] dummy_hcd dummy_hcd.0: new USB bus registered, assigned bus number 1 [ 11.030513][ T1] usb usb1: New USB device found, idVendor=1d6b, idProduct=0002, bcdDevice= 5.05 [ 11.032522][ T1] usb usb1: New USB device strings: Mfr=3, Product=2, SerialNumber=1 [ 11.033852][ T1] usb usb1: Product: Dummy host controller [ 11.034672][ T1] usb usb1: Manufacturer: Linux 5.5.0-rc7-next-20200121-syzkaller dummy_hcd [ 11.036460][ T1] usb usb1: SerialNumber: dummy_hcd.0 [ 11.041710][ T1] hub 1-0:1.0: USB hub found [ 11.042927][ T1] hub 1-0:1.0: 1 port detected [ 11.046448][ T1] ================================================================== [ 11.048233][ T1] BUG: KASAN: slab-out-of-bounds in post_usb_notification+0xe5/0x170 [ 11.049016][ T1] Read of size 21 at addr ffff88821851f840 by task swapper/0/1 [ 11.049016][ T1] [ 11.049016][ T1] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 5.5.0-rc7-next-20200121-syzkaller #0 [ 11.049016][ T1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 11.049016][ T1] Call Trace: [ 11.049016][ T1] dump_stack+0x197/0x210 [ 11.049016][ T1] ? post_usb_notification+0xe5/0x170 [ 11.049016][ T1] print_address_description.constprop.0.cold+0xd4/0x30b [ 11.049016][ T1] ? post_usb_notification+0xe5/0x170 [ 11.049016][ T1] ? post_usb_notification+0xe5/0x170 [ 11.049016][ T1] __kasan_report.cold+0x1b/0x32 [ 11.049016][ T1] ? post_usb_notification+0xe5/0x170 [ 11.049016][ T1] kasan_report+0x12/0x20 [ 11.049016][ T1] check_memory_region+0x134/0x1a0 [ 11.049016][ T1] memcpy+0x24/0x50 [ 11.049016][ T1] post_usb_notification+0xe5/0x170 [ 11.049016][ T1] ? get_urb32+0x3d0/0x3d0 [ 11.049016][ T1] ? lock_acquire+0x190/0x410 [ 11.049016][ T1] ? blocking_notifier_call_chain+0x7d/0xb0 [ 11.049016][ T1] usbdev_notify+0x2c0/0x4a0 [ 11.049016][ T1] ? __kasan_check_write+0x14/0x20 [ 11.049016][ T1] ? down_read+0x109/0x440 [ 11.049016][ T1] ? usb_set_configuration+0xe85/0x16b0 [ 11.049016][ T1] notifier_call_chain+0xc2/0x230 [ 11.049016][ T1] blocking_notifier_call_chain+0x94/0xb0 [ 11.049016][ T1] usb_notify_add_device+0x22/0x30 [ 11.049016][ T1] generic_probe+0x8c/0xde [ 11.049016][ T1] usb_probe_device+0xa0/0xf0 [ 11.049016][ T1] ? usb_suspend+0x660/0x660 [ 11.049016][ T1] really_probe+0x291/0x700 [ 11.049016][ T1] driver_probe_device+0x110/0x220 [ 11.049016][ T1] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 11.049016][ T1] __device_attach_driver+0x1c9/0x230 [ 11.049016][ T1] bus_for_each_drv+0x172/0x1f0 [ 11.049016][ T1] ? driver_allows_async_probing+0x180/0x180 [ 11.049016][ T1] ? bus_rescan_devices+0x30/0x30 [ 11.049016][ T1] ? _raw_spin_unlock_irqrestore+0x9f/0xe0 [ 11.049016][ T1] __device_attach+0x237/0x390 [ 11.049016][ T1] ? device_bind_driver+0xd0/0xd0 [ 11.049016][ T1] ? __kasan_check_write+0x14/0x20 [ 11.049016][ T1] device_initial_probe+0x1b/0x20 [ 11.049016][ T1] bus_probe_device+0x1f1/0x2a0 [ 11.049016][ T1] device_add+0x14fe/0x1d00 [ 11.049016][ T1] ? usb_match_device+0xdb/0x560 [ 11.049016][ T1] ? uevent_show+0x370/0x370 [ 11.049016][ T1] usb_new_device.cold+0x74c/0x1063 [ 11.049016][ T1] ? kfree+0x226/0x2c0 [ 11.049016][ T1] ? hub_disconnect+0x450/0x450 [ 11.049016][ T1] ? usb_get_device_descriptor+0xba/0xf0 [ 11.049016][ T1] usb_add_hcd.cold+0x10f8/0x1496 [ 11.049016][ T1] dummy_hcd_probe+0x1ae/0x32c [ 11.049016][ T1] ? platform_drv_remove+0xa0/0xa0 [ 11.049016][ T1] ? dummy_enable.cold+0x4b/0x4b [ 11.049016][ T1] platform_drv_probe+0x8d/0x140 [ 11.049016][ T1] ? platform_drv_remove+0xa0/0xa0 [ 11.049016][ T1] really_probe+0x291/0x700 [ 11.049016][ T1] driver_probe_device+0x110/0x220 [ 11.049016][ T1] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 11.049016][ T1] __device_attach_driver+0x1c9/0x230 [ 11.049016][ T1] bus_for_each_drv+0x172/0x1f0 [ 11.049016][ T1] ? driver_allows_async_probing+0x180/0x180 [ 11.049016][ T1] ? bus_rescan_devices+0x30/0x30 [ 11.049016][ T1] ? _raw_spin_unlock_irqrestore+0x9f/0xe0 [ 11.049016][ T1] __device_attach+0x237/0x390 [ 11.049016][ T1] ? device_bind_driver+0xd0/0xd0 [ 11.049016][ T1] ? __kasan_check_write+0x14/0x20 [ 11.049016][ T1] device_initial_probe+0x1b/0x20 [ 11.049016][ T1] bus_probe_device+0x1f1/0x2a0 [ 11.049016][ T1] device_add+0x14fe/0x1d00 [ 11.049016][ T1] ? dev_set_name+0xbb/0xf0 [ 11.049016][ T1] ? uevent_show+0x370/0x370 [ 11.049016][ T1] platform_device_add+0x365/0x6e0 [ 11.049016][ T1] ? kfree+0x28b/0x2c0 [ 11.049016][ T1] init+0x534/0xab8 [ 11.049016][ T1] ? usb_udc_init+0x9c/0x9c [ 11.049016][ T1] ? lock_downgrade+0x920/0x920 [ 11.049016][ T1] ? lock_downgrade+0x920/0x920 [ 11.049016][ T1] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 11.049016][ T1] ? debug_smp_processor_id+0x33/0x18a [ 11.049016][ T1] ? rcu_lockdep_current_cpu_online+0xe3/0x130 [ 11.049016][ T1] ? usb_udc_init+0x9c/0x9c [ 11.049016][ T1] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 11.049016][ T1] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 11.049016][ T1] ? configfs_register_subsystem+0x208/0x390 [ 11.049016][ T1] ? usb_udc_init+0x9c/0x9c [ 11.049016][ T1] do_one_initcall+0x120/0x820 [ 11.049016][ T1] ? boot_config_checksum+0xa0/0xa0 [ 11.049016][ T1] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 11.049016][ T1] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 11.049016][ T1] ? __kmalloc+0x608/0x770 [ 11.049016][ T1] ? __kasan_check_read+0x11/0x20 [ 11.049016][ T1] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 11.049016][ T1] kernel_init_freeable+0x522/0x5d0 [ 11.049016][ T1] ? rest_init+0x371/0x371 [ 11.049016][ T1] kernel_init+0x12/0x1bf [ 11.049016][ T1] ret_from_fork+0x24/0x30 [ 11.049016][ T1] [ 11.049016][ T1] Allocated by task 1: [ 11.049016][ T1] save_stack+0x23/0x90 [ 11.049016][ T1] __kasan_kmalloc.constprop.0+0xcf/0xe0 [ 11.049016][ T1] kasan_kmalloc+0x9/0x10 [ 11.049016][ T1] __kmalloc_track_caller+0x15f/0x760 [ 11.049016][ T1] kvasprintf+0xc8/0x170 [ 11.049016][ T1] kvasprintf_const+0x65/0x190 [ 11.049016][ T1] kobject_set_name_vargs+0x5b/0x150 [ 11.049016][ T1] dev_set_name+0xbb/0xf0 [ 11.049016][ T1] usb_alloc_dev+0xcc4/0xf86 [ 11.049016][ T1] usb_add_hcd.cold+0x3c1/0x1496 [ 11.049016][ T1] dummy_hcd_probe+0x1ae/0x32c [ 11.049016][ T1] platform_drv_probe+0x8d/0x140 [ 11.049016][ T1] really_probe+0x291/0x700 [ 11.049016][ T1] driver_probe_device+0x110/0x220 [ 11.049016][ T1] __device_attach_driver+0x1c9/0x230 [ 11.049016][ T1] bus_for_each_drv+0x172/0x1f0 [ 11.049016][ T1] __device_attach+0x237/0x390 [ 11.049016][ T1] device_initial_probe+0x1b/0x20 [ 11.049016][ T1] bus_probe_device+0x1f1/0x2a0 [ 11.049016][ T1] device_add+0x14fe/0x1d00 [ 11.049016][ T1] platform_device_add+0x365/0x6e0 [ 11.049016][ T1] init+0x534/0xab8 [ 11.049016][ T1] do_one_initcall+0x120/0x820 [ 11.049016][ T1] kernel_init_freeable+0x522/0x5d0 [ 11.049016][ T1] kernel_init+0x12/0x1bf [ 11.049016][ T1] ret_from_fork+0x24/0x30 [ 11.049016][ T1] [ 11.049016][ T1] Freed by task 0: [ 11.049016][ T1] (stack is not available) [ 11.049016][ T1] [ 11.049016][ T1] The buggy address belongs to the object at ffff88821851f840 [ 11.049016][ T1] which belongs to the cache kmalloc-32 of size 32 [ 11.049016][ T1] The buggy address is located 0 bytes inside of [ 11.049016][ T1] 32-byte region [ffff88821851f840, ffff88821851f860) [ 11.049016][ T1] The buggy address belongs to the page: [ 11.049016][ T1] page:ffffea00086147c0 refcount:1 mapcount:0 mapping:ffff8880aa4001c0 index:0xffff88821851ffc1 [ 11.049016][ T1] flags: 0x57ffe0000000200(slab) [ 11.049016][ T1] raw: 057ffe0000000200 ffff88821bc00238 ffff88821bc00238 ffff8880aa4001c0 [ 11.049016][ T1] raw: ffff88821851ffc1 ffff88821851f000 000000010000003c 0000000000000000 [ 11.049016][ T1] page dumped because: kasan: bad access detected [ 11.049016][ T1] [ 11.049016][ T1] Memory state around the buggy address: [ 11.049016][ T1] ffff88821851f700: fb fb fb fb fc fc fc fc 00 04 fc fc fc fc fc fc [ 11.049016][ T1] ffff88821851f780: 00 fc fc fc fc fc fc fc 00 fc fc fc fc fc fc fc [ 11.049016][ T1] >ffff88821851f800: 06 fc fc fc fc fc fc fc 05 fc fc fc fc fc fc fc [ 11.049016][ T1] ^ [ 11.049016][ T1] ffff88821851f880: fb fb fb fb fc fc fc fc 00 fc fc fc fc fc fc fc [ 11.049016][ T1] ffff88821851f900: fb fb fb fb fc fc fc fc fb fb fb fb fc fc fc fc [ 11.049016][ T1] ================================================================== [ 11.049016][ T1] Disabling lock debugging due to kernel taint [ 11.839814][ T1] Kernel panic - not syncing: panic_on_warn set ... [ 11.846478][ T1] CPU: 0 PID: 1 Comm: swapper/0 Tainted: G B 5.5.0-rc7-next-20200121-syzkaller #0 [ 11.849506][ T1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 11.849506][ T1] Call Trace: [ 11.849506][ T1] dump_stack+0x197/0x210 [ 11.849506][ T1] panic+0x2e3/0x75c [ 11.849506][ T1] ? add_taint.cold+0x16/0x16 [ 11.849506][ T1] ? post_usb_notification+0xe5/0x170 [ 11.849506][ T1] ? preempt_schedule+0x4b/0x60 [ 11.849506][ T1] ? ___preempt_schedule+0x16/0x18 [ 11.849506][ T1] ? trace_hardirqs_on+0x5e/0x240 [ 11.849506][ T1] ? post_usb_notification+0xe5/0x170 [ 11.849506][ T1] end_report+0x47/0x4f [ 11.849506][ T1] ? post_usb_notification+0xe5/0x170 [ 11.849506][ T1] __kasan_report.cold+0xe/0x32 [ 11.849506][ T1] ? post_usb_notification+0xe5/0x170 [ 11.849506][ T1] kasan_report+0x12/0x20 [ 11.849506][ T1] check_memory_region+0x134/0x1a0 [ 11.849506][ T1] memcpy+0x24/0x50 [ 11.849506][ T1] post_usb_notification+0xe5/0x170 [ 11.849506][ T1] ? get_urb32+0x3d0/0x3d0 [ 11.849506][ T1] ? lock_acquire+0x190/0x410 [ 11.849506][ T1] ? blocking_notifier_call_chain+0x7d/0xb0 [ 11.849506][ T1] usbdev_notify+0x2c0/0x4a0 [ 11.849506][ T1] ? __kasan_check_write+0x14/0x20 [ 11.849506][ T1] ? down_read+0x109/0x440 [ 11.849506][ T1] ? usb_set_configuration+0xe85/0x16b0 [ 11.849506][ T1] notifier_call_chain+0xc2/0x230 [ 11.849506][ T1] blocking_notifier_call_chain+0x94/0xb0 [ 11.849506][ T1] usb_notify_add_device+0x22/0x30 [ 11.849506][ T1] generic_probe+0x8c/0xde [ 11.849506][ T1] usb_probe_device+0xa0/0xf0 [ 11.849506][ T1] ? usb_suspend+0x660/0x660 [ 11.849506][ T1] really_probe+0x291/0x700 [ 11.849506][ T1] driver_probe_device+0x110/0x220 [ 11.849506][ T1] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 11.849506][ T1] __device_attach_driver+0x1c9/0x230 [ 11.849506][ T1] bus_for_each_drv+0x172/0x1f0 [ 11.849506][ T1] ? driver_allows_async_probing+0x180/0x180 [ 11.849506][ T1] ? bus_rescan_devices+0x30/0x30 [ 11.849506][ T1] ? _raw_spin_unlock_irqrestore+0x9f/0xe0 [ 11.849506][ T1] __device_attach+0x237/0x390 [ 11.849506][ T1] ? device_bind_driver+0xd0/0xd0 [ 11.849506][ T1] ? __kasan_check_write+0x14/0x20 [ 11.849506][ T1] device_initial_probe+0x1b/0x20 [ 11.849506][ T1] bus_probe_device+0x1f1/0x2a0 [ 11.849506][ T1] device_add+0x14fe/0x1d00 [ 11.849506][ T1] ? usb_match_device+0xdb/0x560 [ 11.849506][ T1] ? uevent_show+0x370/0x370 [ 11.849506][ T1] usb_new_device.cold+0x74c/0x1063 [ 11.849506][ T1] ? kfree+0x226/0x2c0 [ 11.849506][ T1] ? hub_disconnect+0x450/0x450 [ 11.849506][ T1] ? usb_get_device_descriptor+0xba/0xf0 [ 11.849506][ T1] usb_add_hcd.cold+0x10f8/0x1496 [ 11.849506][ T1] dummy_hcd_probe+0x1ae/0x32c [ 11.849506][ T1] ? platform_drv_remove+0xa0/0xa0 [ 11.849506][ T1] ? dummy_enable.cold+0x4b/0x4b [ 11.849506][ T1] platform_drv_probe+0x8d/0x140 [ 11.849506][ T1] ? platform_drv_remove+0xa0/0xa0 [ 11.849506][ T1] really_probe+0x291/0x700 [ 11.849506][ T1] driver_probe_device+0x110/0x220 [ 11.849506][ T1] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 11.849506][ T1] __device_attach_driver+0x1c9/0x230 [ 11.849506][ T1] bus_for_each_drv+0x172/0x1f0 [ 11.849506][ T1] ? driver_allows_async_probing+0x180/0x180 [ 11.849506][ T1] ? bus_rescan_devices+0x30/0x30 [ 11.849506][ T1] ? _raw_spin_unlock_irqrestore+0x9f/0xe0 [ 11.849506][ T1] __device_attach+0x237/0x390 [ 11.849506][ T1] ? device_bind_driver+0xd0/0xd0 [ 11.849506][ T1] ? __kasan_check_write+0x14/0x20 [ 11.849506][ T1] device_initial_probe+0x1b/0x20 [ 11.849506][ T1] bus_probe_device+0x1f1/0x2a0 [ 11.849506][ T1] device_add+0x14fe/0x1d00 [ 11.849506][ T1] ? dev_set_name+0xbb/0xf0 [ 11.849506][ T1] ? uevent_show+0x370/0x370 [ 11.849506][ T1] platform_device_add+0x365/0x6e0 [ 11.849506][ T1] ? kfree+0x28b/0x2c0 [ 11.849506][ T1] init+0x534/0xab8 [ 11.849506][ T1] ? usb_udc_init+0x9c/0x9c [ 11.849506][ T1] ? lock_downgrade+0x920/0x920 [ 11.849506][ T1] ? lock_downgrade+0x920/0x920 [ 11.849506][ T1] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 11.849506][ T1] ? debug_smp_processor_id+0x33/0x18a [ 11.849506][ T1] ? rcu_lockdep_current_cpu_online+0xe3/0x130 [ 11.849506][ T1] ? usb_udc_init+0x9c/0x9c [ 11.849506][ T1] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 11.849506][ T1] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 11.849506][ T1] ? configfs_register_subsystem+0x208/0x390 [ 11.849506][ T1] ? usb_udc_init+0x9c/0x9c [ 11.849506][ T1] do_one_initcall+0x120/0x820 [ 11.849506][ T1] ? boot_config_checksum+0xa0/0xa0 [ 11.849506][ T1] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 11.849506][ T1] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 11.849506][ T1] ? __kmalloc+0x608/0x770 [ 11.849506][ T1] ? __kasan_check_read+0x11/0x20 [ 11.849506][ T1] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 11.849506][ T1] kernel_init_freeable+0x522/0x5d0 [ 11.849506][ T1] ? rest_init+0x371/0x371 [ 11.849506][ T1] kernel_init+0x12/0x1bf [ 11.849506][ T1] ret_from_fork+0x24/0x30 [ 11.849506][ T1] Kernel Offset: disabled [ 11.849506][ T1] Rebooting in 86400 seconds..