[ 0.000000][ T0] Linux version 5.5.0-rc6-next-20200117-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 [ 0.000004][ T0] kvm-clock: cpu 0, msr ae09001, primary cpu clock [ 0.000004][ T0] kvm-clock: using sched offset of 3956648455 cycles [ 0.000886][ T0] clocksource: kvm-clock: mask: 0xffffffffffffffff max_cycles: 0x1cd42e4dffb, max_idle_ns: 881590591483 ns [ 0.004044][ T0] tsc: Detected 2300.000 MHz processor [ 0.007504][ T0] last_pfn = 0x220000 max_arch_pfn = 0x400000000 [ 0.008749][ T0] x86/PAT: Configuration [0-7]: WB WC UC- UC WB WP UC- WT [ 0.010671][ T0] last_pfn = 0xbfffd max_arch_pfn = 0x400000000 [ 0.017652][ T0] found SMP MP-table at [mem 0x000f2470-0x000f247f] [ 0.018700][ T0] check: Scanning 1 areas for low memory corruption [ 0.019761][ T0] Using GB pages for direct mapping [ 0.022805][ T0] ACPI: Early table checksum verification disabled [ 0.024036][ T0] ACPI: RSDP 0x00000000000F21F0 000014 (v00 Google) [ 0.025312][ T0] ACPI: RSDT 0x00000000BFFFFFC0 000038 (v01 Google GOOGRSDT 00000001 GOOG 00000001) [ 0.027478][ T0] ACPI: FACP 0x00000000BFFFF380 0000F4 (v02 Google GOOGFACP 00000001 GOOG 00000001) [ 0.029036][ T0] ACPI: DSDT 0x00000000BFFFDAC0 0018BA (v01 Google GOOGDSDT 00000001 GOOG 00000001) [ 0.030306][ T0] ACPI: FACS 0x00000000BFFFDA80 000040 [ 0.031245][ T0] ACPI: FACS 0x00000000BFFFDA80 000040 [ 0.032130][ T0] ACPI: SRAT 0x00000000BFFFFEB0 0000C8 (v01 Google GOOGSRAT 00000001 GOOG 00000001) [ 0.034000][ T0] ACPI: APIC 0x00000000BFFFFE00 000076 (v01 Google GOOGAPIC 00000001 GOOG 00000001) [ 0.035397][ T0] ACPI: SSDT 0x00000000BFFFF480 000980 (v01 Google GOOGSSDT 00000001 GOOG 00000001) [ 0.036812][ T0] ACPI: WAET 0x00000000BFFFFE80 000028 (v01 Google GOOGWAET 00000001 GOOG 00000001) [ 0.038910][ T0] SRAT: PXM 0 -> APIC 0x00 -> Node 0 [ 0.039852][ T0] SRAT: PXM 0 -> APIC 0x01 -> Node 0 [ 0.040694][ T0] ACPI: SRAT: Node 0 PXM 0 [mem 0x00000000-0x0009ffff] [ 0.041635][ T0] ACPI: SRAT: Node 0 PXM 0 [mem 0x00100000-0xbfffffff] [ 0.042829][ T0] ACPI: SRAT: Node 0 PXM 0 [mem 0x100000000-0x21fffffff] [ 0.044018][ T0] NUMA: Node 0 [mem 0x00000000-0x0009ffff] + [mem 0x00100000-0xbfffffff] -> [mem 0x00000000-0xbfffffff] [ 0.046086][ T0] NUMA: Node 0 [mem 0x00000000-0xbfffffff] + [mem 0x100000000-0x21fffffff] -> [mem 0x00000000-0x21fffffff] [ 0.048297][ T0] Faking node 0 at [mem 0x0000000000000000-0x000000012fffffff] (4864MB) [ 0.049735][ T0] Faking node 1 at [mem 0x0000000130000000-0x000000021fffffff] (3840MB) [ 0.051764][ T0] NODE_DATA(0) allocated [mem 0x12fffb000-0x12fffffff] [ 0.053867][ T0] NODE_DATA(1) allocated [mem 0x21fff8000-0x21fffcfff] [ 0.106380][ T0] Zone ranges: [ 0.107176][ T0] DMA [mem 0x0000000000001000-0x0000000000ffffff] [ 0.108229][ T0] DMA32 [mem 0x0000000001000000-0x00000000ffffffff] [ 0.109735][ T0] Normal [mem 0x0000000100000000-0x000000021fffffff] [ 0.111208][ T0] Device empty [ 0.112243][ T0] Movable zone start for each node [ 0.113214][ T0] Early memory node ranges [ 0.114067][ T0] node 0: [mem 0x0000000000001000-0x000000000009efff] [ 0.115239][ T0] node 0: [mem 0x0000000000100000-0x00000000bfffcfff] [ 0.116338][ T0] node 0: [mem 0x0000000100000000-0x000000012fffffff] [ 0.117442][ T0] node 1: [mem 0x0000000130000000-0x000000021fffffff] [ 0.118406][ T0] Zeroed struct page in unavailable ranges: 101 pages [ 0.118413][ T0] Initmem setup node 0 [mem 0x0000000000001000-0x000000012fffffff] [ 0.174973][ T0] Initmem setup node 1 [mem 0x0000000130000000-0x000000021fffffff] [ 0.647105][ T0] kasan: KernelAddressSanitizer initialized [ 0.648638][ T0] ACPI: PM-Timer IO Port: 0xb008 [ 0.649426][ T0] ACPI: LAPIC_NMI (acpi_id[0xff] dfl dfl lint[0x1]) [ 0.651079][ T0] IOAPIC[0]: apic_id 0, version 17, address 0xfec00000, GSI 0-23 [ 0.652573][ T0] ACPI: INT_SRC_OVR (bus 0 bus_irq 5 global_irq 5 high level) [ 0.653658][ T0] ACPI: INT_SRC_OVR (bus 0 bus_irq 9 global_irq 9 high level) [ 0.654757][ T0] ACPI: INT_SRC_OVR (bus 0 bus_irq 10 global_irq 10 high level) [ 0.655916][ T0] ACPI: INT_SRC_OVR (bus 0 bus_irq 11 global_irq 11 high level) [ 0.657284][ T0] Using ACPI (MADT) for SMP configuration information [ 0.658232][ T0] smpboot: Allowing 2 CPUs, 0 hotplug CPUs [ 0.659219][ T0] PM: hibernation: Registered nosave memory: [mem 0x00000000-0x00000fff] [ 0.660590][ T0] PM: hibernation: Registered nosave memory: [mem 0x0009f000-0x0009ffff] [ 0.661741][ T0] PM: hibernation: Registered nosave memory: [mem 0x000a0000-0x000effff] [ 0.662878][ T0] PM: hibernation: Registered nosave memory: [mem 0x000f0000-0x000fffff] [ 0.664029][ T0] PM: hibernation: Registered nosave memory: [mem 0xbfffd000-0xbfffffff] [ 0.665214][ T0] PM: hibernation: Registered nosave memory: [mem 0xc0000000-0xfffbbfff] [ 0.666423][ T0] PM: hibernation: Registered nosave memory: [mem 0xfffbc000-0xffffffff] [ 0.667657][ T0] [mem 0xc0000000-0xfffbbfff] available for PCI devices [ 0.668746][ T0] Booting paravirtualized kernel on KVM [ 0.669542][ T0] clocksource: refined-jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604462750000 ns [ 0.671225][ T0] setup_percpu: NR_CPUS:64 nr_cpumask_bits:64 nr_cpu_ids:2 nr_node_ids:2 [ 0.673587][ T0] percpu: Embedded 66 pages/cpu s232520 r8192 d29624 u1048576 [ 0.675856][ T0] PV qspinlock hash table entries: 256 (order: 0, 4096 bytes, linear) [ 0.677029][ T0] Built 2 zonelists, mobility grouping on. Total pages: 1935238 [ 0.678096][ T0] Policy zone: Normal [ 0.678663][ 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 [ 0.689945][ T0] mem auto-init: stack:off, heap alloc:on, heap free:off [ 1.523295][ T0] Memory: 6479668K/7863916K available (116745K kernel code, 16850K rwdata, 21156K rodata, 2880K init, 24724K bss, 1384248K reserved, 0K cma-reserved) [ 1.531094][ T0] Running RCU self tests [ 1.531975][ T0] rcu: Preemptible hierarchical RCU implementation. [ 1.533196][ T0] rcu: RCU lockdep checking is enabled. [ 1.534061][ T0] rcu: RCU restricting CPUs from NR_CPUS=64 to nr_cpu_ids=2. [ 1.535436][ T0] rcu: RCU callback double-/use-after-free debug enabled. [ 1.536939][ T0] Tasks RCU enabled. [ 1.537769][ T0] rcu: RCU calculated value of scheduler-enlistment delay is 10 jiffies. [ 1.538903][ T0] rcu: Adjusting geometry for rcu_fanout_leaf=16, nr_cpu_ids=2 [ 1.547644][ T0] NR_IRQS: 4352, nr_irqs: 440, preallocated irqs: 16 [ 1.549715][ T0] random: get_random_bytes called from start_kernel+0x974/0xd63 with crng_init=0 [ 1.553672][ T0] Console: colour VGA+ 80x25 [ 1.557299][ T0] printk: console [ttyS0] enabled [ 1.557299][ T0] printk: console [ttyS0] enabled [ 1.558972][ T0] printk: bootconsole [earlyser0] disabled [ 1.558972][ T0] printk: bootconsole [earlyser0] disabled [ 1.561132][ T0] Lock dependency validator: Copyright (c) 2006 Red Hat, Inc., Ingo Molnar [ 1.562551][ T0] ... MAX_LOCKDEP_SUBCLASSES: 8 [ 1.563273][ T0] ... MAX_LOCK_DEPTH: 48 [ 1.564014][ T0] ... MAX_LOCKDEP_KEYS: 8192 [ 1.564758][ T0] ... CLASSHASH_SIZE: 4096 [ 1.565805][ T0] ... MAX_LOCKDEP_ENTRIES: 32768 [ 1.566677][ T0] ... MAX_LOCKDEP_CHAINS: 65536 [ 1.567494][ T0] ... CHAINHASH_SIZE: 32768 [ 1.569524][ T0] memory used by lock dependency info: 6237 kB [ 1.570691][ T0] memory used for stack traces: 4224 kB [ 1.571724][ T0] per task-struct memory footprint: 1920 bytes [ 1.574125][ T0] mempolicy: Enabling automatic NUMA balancing. Configure with numa_balancing= or the kernel.numa_balancing sysctl [ 1.576574][ T0] ACPI: Core revision 20200110 [ 1.578432][ T0] APIC: Switch to symmetric I/O mode setup [ 1.580127][ T0] x2apic enabled [ 1.582229][ T0] Switched APIC routing to physical x2apic. [ 1.587870][ T0] ..TIMER: vector=0x30 apic1=0 pin1=0 apic2=-1 pin2=-1 [ 1.589317][ T0] clocksource: tsc-early: mask: 0xffffffffffffffff max_cycles: 0x212735223b2, max_idle_ns: 440795277976 ns [ 1.591109][ T0] Calibrating delay loop (skipped) preset value.. 4600.00 BogoMIPS (lpj=23000000) [ 1.592592][ T0] pid_max: default: 32768 minimum: 301 [ 1.594611][ T0] LSM: Security Framework initializing [ 1.596152][ T0] LSM: security= is ignored because it is superseded by lsm= [ 1.597559][ T0] Yama: becoming mindful. [ 1.601341][ T0] TOMOYO Linux initialized [ 1.602353][ T0] AppArmor: AppArmor initialized [ 1.610513][ T0] Dentry cache hash table entries: 1048576 (order: 11, 8388608 bytes, vmalloc) [ 1.615009][ T0] Inode-cache hash table entries: 524288 (order: 10, 4194304 bytes, vmalloc) [ 1.616954][ T0] Mount-cache hash table entries: 16384 (order: 5, 131072 bytes, vmalloc) [ 1.618378][ T0] Mountpoint-cache hash table entries: 16384 (order: 5, 131072 bytes, vmalloc) [ 1.621477][ T0] *** VALIDATE tmpfs *** [ 1.623715][ T0] *** VALIDATE proc *** [ 1.625270][ T0] *** VALIDATE cgroup1 *** [ 1.627043][ T0] *** VALIDATE cgroup2 *** [ 1.629244][ T0] Last level iTLB entries: 4KB 1024, 2MB 1024, 4MB 1024 [ 1.631131][ T0] Last level dTLB entries: 4KB 1024, 2MB 1024, 4MB 1024, 1GB 4 [ 1.632342][ T0] Spectre V1 : Mitigation: usercopy/swapgs barriers and __user pointer sanitization [ 1.633810][ T0] Spectre V2 : Spectre mitigation: kernel not compiled with retpoline; no mitigation available! [ 1.633845][ T0] Speculative Store Bypass: Mitigation: Speculative Store Bypass disabled via prctl [ 1.637324][ T0] MDS: Mitigation: Clear CPU buffers [ 1.639029][ T0] Freeing SMP alternatives memory: 96K [ 1.763966][ T1] smpboot: CPU0: Intel(R) Xeon(R) CPU @ 2.30GHz (family: 0x6, model: 0x3f, stepping: 0x0) [ 1.821200][ T1] Performance Events: unsupported p6 CPU model 63 no PMU driver, software events only. [ 1.841146][ T1] rcu: Hierarchical SRCU implementation. [ 1.881135][ T1] smp: Bringing up secondary CPUs ... [ 1.964296][ T1] x86: Booting SMP configuration: [ 1.965210][ T1] .... node #0, CPUs: #1 [ 0.041537][ T0] kvm-clock: cpu 1, msr ae09041, secondary cpu clock [ 1.969539][ 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. [ 1.971284][ T1] smp: Brought up 2 nodes, 2 CPUs [ 1.971997][ T1] smpboot: Max logical packages: 1 [ 1.972795][ T1] smpboot: Total of 2 processors activated (9200.00 BogoMIPS) [ 1.974154][ T1] NMI watchdog: Perf NMI watchdog permanently disabled [ 1.982239][ T1] devtmpfs: initialized [ 1.983053][ T1] x86/mm: Memory block size: 128MB [ 2.006639][ T1] clocksource: jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604462750000 ns [ 2.011215][ T1] futex hash table entries: 512 (order: 4, 65536 bytes, vmalloc) [ 2.013399][ T1] xor: automatically using best checksumming function avx [ 2.015198][ T1] PM: RTC time: 09:14:39, date: 2020-01-17 [ 2.016034][ T1] thermal_sys: Registered thermal governor 'step_wise' [ 2.016038][ T1] thermal_sys: Registered thermal governor 'user_space' [ 2.012692][ T26] kworker/u4:0 (26) used greatest stack depth: 27536 bytes left [ 2.024687][ T1] NET: Registered protocol family 16 [ 2.030150][ T1] audit: initializing netlink subsys (disabled) [ 2.031232][ T27] audit: type=2000 audit(1579252479.154:1): state=initialized audit_enabled=0 res=1 [ 2.034026][ T1] cpuidle: using governor menu [ 2.036256][ T1] ACPI: bus type PCI registered [ 2.043272][ T1] dca service started, version 1.12.1 [ 2.045147][ T1] PCI: Using configuration type 1 for base access [ 2.099352][ T89] kworker/u4:0 (89) used greatest stack depth: 27440 bytes left [ 2.444355][ T775] kworker/u4:2 (775) used greatest stack depth: 27128 bytes left [ 2.516255][ T1] WARNING: workqueue cpumask: online intersect > possible intersect [ 2.516255][ T1] HugeTLB registered 1.00 GiB page size, pre-allocated 0 pages [ 2.516255][ T1] HugeTLB registered 2.00 MiB page size, pre-allocated 0 pages [ 2.571745][ T1] cryptd: max_cpu_qlen set to 1000 [ 2.801151][ T1] raid6: avx2x4 gen() 9349 MB/s [ 2.962725][ T1] raid6: avx2x4 xor() 5137 MB/s [ 3.132743][ T1] raid6: avx2x2 gen() 6652 MB/s [ 3.311148][ T1] raid6: avx2x2 xor() 3214 MB/s [ 3.481124][ T1] raid6: avx2x1 gen() 4394 MB/s [ 3.651122][ T1] raid6: avx2x1 xor() 1685 MB/s [ 3.821132][ T1] raid6: sse2x4 gen() 5331 MB/s [ 3.982729][ T1] raid6: sse2x4 xor() 2761 MB/s [ 4.152722][ T1] raid6: sse2x2 gen() 3616 MB/s [ 4.322712][ T1] raid6: sse2x2 xor() 1574 MB/s [ 4.492722][ T1] raid6: sse2x1 gen() 2074 MB/s [ 4.662728][ T1] raid6: sse2x1 xor() 846 MB/s [ 4.663965][ T1] raid6: using algorithm avx2x4 gen() 9349 MB/s [ 4.665295][ T1] raid6: .... xor() 5137 MB/s, rmw enabled [ 4.666142][ T1] raid6: using avx2x2 recovery algorithm [ 4.671756][ T1] ACPI: Added _OSI(Module Device) [ 4.671756][ T1] ACPI: Added _OSI(Processor Device) [ 4.671756][ T1] ACPI: Added _OSI(3.0 _SCP Extensions) [ 4.671756][ T1] ACPI: Added _OSI(Processor Aggregator Device) [ 4.671756][ T1] ACPI: Added _OSI(Linux-Dell-Video) [ 4.672051][ T1] ACPI: Added _OSI(Linux-Lenovo-NV-HDMI-Audio) [ 4.673258][ T1] ACPI: Added _OSI(Linux-HPI-Hybrid-Graphics) [ 4.716812][ T1] ACPI: 2 ACPI AML tables successfully acquired and loaded [ 4.787228][ T1] ACPI: Interpreter enabled [ 4.788286][ T1] ACPI: (supports S0 S3 S4 S5) [ 4.788995][ T1] ACPI: Using IOAPIC for interrupt routing [ 4.789939][ T1] PCI: Using host bridge windows from ACPI; if necessary, use "pci=nocrs" and report a bug [ 4.789939][ T1] ACPI: Enabled 16 GPEs in block 00 to 0F [ 4.874043][ T1] ACPI: PCI Root Bridge [PCI0] (domain 0000 [bus 00-ff]) [ 4.874043][ T1] acpi PNP0A03:00: _OSC: OS supports [ASPM ClockPM Segments MSI HPX-Type3] [ 4.874043][ T1] acpi PNP0A03:00: fail to add MMCONFIG information, can't access extended PCI configuration space under this bridge. [ 4.881279][ T1] PCI host bridge to bus 0000:00 [ 4.881279][ T1] pci_bus 0000:00: Unknown NUMA node; performance will be reduced [ 4.882673][ T1] pci_bus 0000:00: root bus resource [io 0x0000-0x0cf7 window] [ 4.884409][ T1] pci_bus 0000:00: root bus resource [io 0x0d00-0xffff window] [ 4.885945][ T1] pci_bus 0000:00: root bus resource [mem 0x000a0000-0x000bffff window] [ 4.887842][ T1] pci_bus 0000:00: root bus resource [mem 0xc0000000-0xfebfffff window] [ 4.889745][ T1] pci_bus 0000:00: root bus resource [bus 00-ff] [ 4.891382][ T1] pci 0000:00:00.0: [8086:1237] type 00 class 0x060000 [ 4.902621][ T1] pci 0000:00:01.0: [8086:7110] type 00 class 0x060100 [ 4.923285][ T1] pci 0000:00:01.3: [8086:7113] type 00 class 0x068000 [ 4.941291][ T1] pci 0000:00:01.3: quirk: [io 0xb000-0xb03f] claimed by PIIX4 ACPI [ 4.951652][ T1] pci 0000:00:03.0: [1af4:1004] type 00 class 0x000000 [ 4.957780][ T1] pci 0000:00:03.0: reg 0x10: [io 0xc000-0xc03f] [ 4.964060][ T1] pci 0000:00:03.0: reg 0x14: [mem 0xfebfd000-0xfebfd07f] [ 4.991322][ T1] pci 0000:00:04.0: [1af4:1000] type 00 class 0x020000 [ 4.992006][ T1] pci 0000:00:04.0: reg 0x10: [io 0xc040-0xc07f] [ 4.997685][ T1] pci 0000:00:04.0: reg 0x14: [mem 0xfebfe000-0xfebfe07f] [ 5.021608][ T1] pci 0000:00:05.0: [1af4:1005] type 00 class 0x00ff00 [ 5.024234][ T1] pci 0000:00:05.0: reg 0x10: [io 0xc080-0xc09f] [ 5.032294][ T1] pci 0000:00:05.0: reg 0x14: [mem 0xfebff000-0xfebff03f] [ 5.063697][ T1] ACPI: PCI Interrupt Link [LNKA] (IRQs 5 *10 11) [ 5.067105][ T1] ACPI: PCI Interrupt Link [LNKB] (IRQs 5 *10 11) [ 5.070841][ T1] ACPI: PCI Interrupt Link [LNKC] (IRQs 5 10 *11) [ 5.073848][ T1] ACPI: PCI Interrupt Link [LNKD] (IRQs 5 10 *11) [ 5.076691][ T1] ACPI: PCI Interrupt Link [LNKS] (IRQs *9) [ 5.101167][ T1] iommu: Default domain type: Translated [ 5.111581][ T1] vgaarb: loaded [ 5.116143][ T1] SCSI subsystem initialized [ 5.122503][ T1] ACPI: bus type USB registered [ 5.123866][ T1] usbcore: registered new interface driver usbfs [ 5.125297][ T1] usbcore: registered new interface driver hub [ 5.126529][ T1] usbcore: registered new device driver usb [ 5.129791][ T1] mc: Linux media interface: v0.10 [ 5.131650][ T1] videodev: Linux video capture interface: v2.00 [ 5.134121][ T1] pps_core: LinuxPPS API ver. 1 registered [ 5.135351][ T1] pps_core: Software ver. 5.3.6 - Copyright 2005-2007 Rodolfo Giometti [ 5.137101][ T1] PTP clock support registered [ 5.138474][ T1] EDAC MC: Ver: 3.0.0 [ 5.151132][ T1] Advanced Linux Sound Architecture Driver Initialized. [ 5.152256][ T1] PCI: Using ACPI for IRQ routing [ 5.152256][ T1] Bluetooth: Core ver 2.22 [ 5.152256][ T1] NET: Registered protocol family 31 [ 5.152256][ T1] Bluetooth: HCI device and connection manager initialized [ 5.153641][ T1] Bluetooth: HCI socket layer initialized [ 5.154631][ T1] Bluetooth: L2CAP socket layer initialized [ 5.155681][ T1] Bluetooth: SCO socket layer initialized [ 5.156679][ T1] NET: Registered protocol family 8 [ 5.157564][ T1] NET: Registered protocol family 20 [ 5.162000][ T1] NetLabel: Initializing [ 5.162000][ T1] NetLabel: domain hash size = 128 [ 5.162000][ T1] NetLabel: protocols = UNLABELED CIPSOv4 CALIPSO [ 5.162688][ T1] NetLabel: unlabeled traffic allowed by default [ 5.171693][ T1] nfc: nfc_init: NFC Core ver 0.1 [ 5.172330][ T1] NET: Registered protocol family 39 [ 5.173524][ T1] clocksource: Switched to clocksource kvm-clock [ 7.771813][ T1] *** VALIDATE bpf *** [ 7.774303][ T1] VFS: Disk quotas dquot_6.6.0 [ 7.775374][ T1] VFS: Dquot-cache hash table entries: 512 (order 0, 4096 bytes) [ 7.777998][ T1] FS-Cache: Loaded [ 7.778619][ T1] *** VALIDATE ramfs *** [ 7.779342][ T1] *** VALIDATE hugetlbfs *** [ 7.781339][ T1] CacheFiles: Loaded [ 7.782473][ T1] TOMOYO: 2.6.0 [ 7.783248][ T1] Mandatory Access Control activated. [ 7.785921][ T1] AppArmor: AppArmor Filesystem Enabled [ 7.787569][ T1] pnp: PnP ACPI init [ 7.799989][ T1] pnp: PnP ACPI: found 7 devices [ 7.857933][ T1] clocksource: acpi_pm: mask: 0xffffff max_cycles: 0xffffff, max_idle_ns: 2085701024 ns [ 7.859740][ T1] pci_bus 0000:00: resource 4 [io 0x0000-0x0cf7 window] [ 7.863313][ T1] pci_bus 0000:00: resource 5 [io 0x0d00-0xffff window] [ 7.864752][ T1] pci_bus 0000:00: resource 6 [mem 0x000a0000-0x000bffff window] [ 7.866205][ T1] pci_bus 0000:00: resource 7 [mem 0xc0000000-0xfebfffff window] [ 7.868672][ T1] NET: Registered protocol family 2 [ 7.872022][ T1] tcp_listen_portaddr_hash hash table entries: 4096 (order: 6, 294912 bytes, vmalloc) [ 7.874912][ T1] TCP established hash table entries: 65536 (order: 7, 524288 bytes, vmalloc) [ 7.881877][ T1] TCP bind hash table entries: 65536 (order: 10, 4194304 bytes, vmalloc) [ 7.886683][ T1] TCP: Hash tables configured (established 65536 bind 65536) [ 7.888932][ T1] UDP hash table entries: 4096 (order: 7, 655360 bytes, vmalloc) [ 7.892301][ T1] UDP-Lite hash table entries: 4096 (order: 7, 655360 bytes, vmalloc) [ 7.894811][ T1] NET: Registered protocol family 1 [ 7.898253][ T1] RPC: Registered named UNIX socket transport module. [ 7.899564][ T1] RPC: Registered udp transport module. [ 7.900563][ T1] RPC: Registered tcp transport module. [ 7.901704][ T1] RPC: Registered tcp NFSv4.1 backchannel transport module. [ 7.904333][ T1] NET: Registered protocol family 44 [ 7.905411][ T1] pci 0000:00:00.0: Limiting direct PCI/PCI transfers [ 7.906943][ T1] PCI: CLS 0 bytes, default 64 [ 7.910666][ T1] PCI-DMA: Using software bounce buffering for IO (SWIOTLB) [ 7.912465][ T1] software IO TLB: mapped [mem 0xaa800000-0xae800000] (64MB) [ 7.916765][ T1] RAPL PMU: API unit is 2^-32 Joules, 0 fixed counters, 10737418240 ms ovfl timer [ 7.921000][ T1] kvm: already loaded the other module [ 7.922453][ T1] clocksource: tsc: mask: 0xffffffffffffffff max_cycles: 0x212735223b2, max_idle_ns: 440795277976 ns [ 7.924279][ T1] clocksource: Switched to clocksource tsc [ 7.925308][ T1] mce: Machine check injector initialized [ 7.930845][ T1] check: Scanning for low memory corruption every 60 seconds [ 8.036718][ T1] Initialise system trusted keyrings [ 8.039724][ T1] workingset: timestamp_bits=40 max_order=21 bucket_order=0 [ 8.041909][ T1] zbud: loaded [ 8.046511][ T1] DLM installed [ 8.050473][ T1] squashfs: version 4.0 (2009/01/31) Phillip Lougher [ 8.055249][ T1] FS-Cache: Netfs 'nfs' registered for caching [ 8.057286][ T1] *** VALIDATE nfs *** [ 8.058947][ T1] *** VALIDATE nfs *** [ 8.059838][ T1] NFS: Registering the id_resolver key type [ 8.063397][ T1] Key type id_resolver registered [ 8.064631][ T1] Key type id_legacy registered [ 8.065561][ T1] nfs4filelayout_init: NFSv4 File Layout Driver Registering... [ 8.066819][ T1] Installing knfsd (copyright (C) 1996 okir@monad.swb.de). [ 8.073525][ T1] FS-Cache: Netfs 'cifs' registered for caching [ 8.077053][ T1] Key type cifs.spnego registered [ 8.077942][ T1] Key type cifs.idmap registered [ 8.078671][ T1] ntfs: driver 2.1.32 [Flags: R/W]. [ 8.080314][ T1] fuse: init (API version 7.31) [ 8.081851][ T1] *** VALIDATE fuse *** [ 8.082467][ T1] *** VALIDATE fuse *** [ 8.085562][ T1] JFS: nTxBlock = 8192, nTxLock = 65536 [ 8.096246][ T1] SGI XFS with ACLs, security attributes, realtime, quota, no debug enabled [ 8.102466][ T1] *** VALIDATE xfs *** [ 8.103820][ T1] 9p: Installing v9fs 9p2000 file system support [ 8.104955][ T1] FS-Cache: Netfs '9p' registered for caching [ 8.106577][ T1] ocfs2: Registered cluster interface o2cb [ 8.108131][ T1] ocfs2: Registered cluster interface user [ 8.110343][ T1] OCFS2 User DLM kernel interface loaded [ 8.118230][ T1] *** VALIDATE gfs2 *** [ 8.120121][ T1] gfs2: GFS2 installed [ 8.124057][ T1] FS-Cache: Netfs 'ceph' registered for caching [ 8.126198][ T1] ceph: loaded (mds proto 32) [ 8.135444][ T1] NET: Registered protocol family 38 [ 8.137372][ T1] async_tx: api initialized (async) [ 8.138614][ T1] Key type asymmetric registered [ 8.139669][ T1] Asymmetric key parser 'x509' registered [ 8.140836][ T1] Asymmetric key parser 'pkcs8' registered [ 8.142039][ T1] Key type pkcs7_test registered [ 8.142813][ T1] Asymmetric key parser 'tpm_parser' registered [ 8.144081][ T1] Block layer SCSI generic (bsg) driver version 0.4 loaded (major 243) [ 8.146108][ T1] io scheduler mq-deadline registered [ 8.147113][ T1] io scheduler kyber registered [ 8.148585][ T1] io scheduler bfq registered [ 8.154542][ T1] hgafb: HGA card not detected. [ 8.155683][ T1] hgafb: probe of hgafb.0 failed with error -22 [ 8.157027][ T1] usbcore: registered new interface driver udlfb [ 8.159650][ T1] uvesafb: failed to execute /sbin/v86d [ 8.160648][ T1] uvesafb: make sure that the v86d helper is installed and executable [ 8.162748][ T1] uvesafb: Getting VBE info block failed (eax=0x4f00, err=-2) [ 8.164199][ T1] uvesafb: vbe_init() failed with -22 [ 8.165126][ T1] uvesafb: probe of uvesafb.0 failed with error -22 [ 8.167652][ T1] vga16fb: mapped to 0x000000005efb36b8 [ 8.235523][ T1] Console: switching to colour frame buffer device 80x30 [ 8.561746][ T1] fb0: VGA16 VGA frame buffer device [ 8.564563][ T1] input: Power Button as /devices/LNXSYSTM:00/LNXPWRBN:00/input/input0 [ 8.581868][ T1] ACPI: Power Button [PWRF] [ 8.583736][ T1] input: Sleep Button as /devices/LNXSYSTM:00/LNXSLPBN:00/input/input1 [ 8.585643][ T1] ACPI: Sleep Button [SLPF] [ 8.592449][ T1] ioatdma: Intel(R) QuickData Technology Driver 5.00 [ 8.605787][ T1] PCI Interrupt Link [LNKC] enabled at IRQ 11 [ 8.606927][ T1] virtio-pci 0000:00:03.0: virtio_pci: leaving for legacy driver [ 8.620414][ T1] PCI Interrupt Link [LNKD] enabled at IRQ 10 [ 8.622415][ T1] virtio-pci 0000:00:04.0: virtio_pci: leaving for legacy driver [ 8.637670][ T1] PCI Interrupt Link [LNKA] enabled at IRQ 10 [ 8.639161][ T1] virtio-pci 0000:00:05.0: virtio_pci: leaving for legacy driver [ 8.664590][ T2002] kworker/u4:2 (2002) used greatest stack depth: 26832 bytes left [ 8.902002][ T1] HDLC line discipline maxframe=4096 [ 8.903886][ T1] N_HDLC line discipline registered. [ 8.905413][ T1] Serial: 8250/16550 driver, 4 ports, IRQ sharing enabled [ 8.908172][ T1] 00:03: ttyS0 at I/O 0x3f8 (irq = 4, base_baud = 115200) is a 16550A [ 8.916574][ T1] 00:04: ttyS1 at I/O 0x2f8 (irq = 3, base_baud = 115200) is a 16550A [ 8.922897][ T1] 00:05: ttyS2 at I/O 0x3e8 (irq = 6, base_baud = 115200) is a 16550A [ 8.927524][ T1] 00:06: ttyS3 at I/O 0x2e8 (irq = 7, base_baud = 115200) is a 16550A [ 8.934061][ T1] Cyclades driver 2.6 [ 8.935808][ T1] Initializing Nozomi driver 2.1d [ 8.938517][ T1] RocketPort device driver module, version 2.09, 12-June-2003 [ 8.940700][ T1] No rocketport ports found; unloading driver [ 8.944312][ T1] Non-volatile memory driver v1.3 [ 8.946345][ T1] Linux agpgart interface v0.103 [ 8.956033][ T1] [drm] Initialized vgem 1.0.0 20120112 for vgem on minor 0 [ 8.958100][ T1] [drm] Supports vblank timestamp caching Rev 2 (21.10.2013). [ 8.959596][ T1] [drm] Driver supports precise vblank timestamp query. [ 8.963993][ T1] [drm] Initialized vkms 1.0.0 20180514 for vkms on minor 1 [ 8.965331][ T1] usbcore: registered new interface driver udl [ 9.011731][ T1] brd: module loaded [ 9.044223][ T1] loop: module loaded [ 9.247502][ T1] zram: Added device: zram0 [ 9.275195][ T1] null_blk: module loaded [ 9.282079][ T1] nfcsim 0.2 initialized [ 9.287148][ T1] Loading iSCSI transport class v2.0-870. [ 9.319639][ T1] scsi host0: Virtio SCSI HBA [ 9.359746][ T1] st: Version 20160209, fixed bufsize 32768, s/g segs 256 [ 9.362883][ T28] scsi 0:0:1:0: Direct-Access Google PersistentDisk 1 PQ: 0 ANSI: 6 [ 9.430727][ T1] slram: not enough parameters. [ 9.436893][ T1] ftl_cs: FTL header not found. [ 9.457982][ T1] Ethernet Channel Bonding Driver: v3.7.1 (April 27, 2011) [ 9.474397][ T1] wireguard: WireGuard 1.0.0 loaded. See www.wireguard.com for information. [ 9.476976][ T1] wireguard: Copyright (C) 2015-2019 Jason A. Donenfeld . All Rights Reserved. [ 9.480549][ T1] eql: Equalizer2002: Simon Janes (simon@ncm.com) and David S. Miller (davem@redhat.com) [ 9.492915][ T1] MACsec IEEE 802.1AE [ 9.494917][ T1] tun: Universal TUN/TAP device driver, 1.6 [ 9.540978][ T1] vcan: Virtual CAN interface driver [ 9.543154][ T1] vxcan: Virtual CAN Tunnel driver [ 9.544554][ T1] slcan: serial line CAN interface driver [ 9.546245][ T1] slcan: 10 dynamic interface channels. [ 9.548096][ T1] CAN device driver interface [ 9.549447][ T1] enic: Cisco VIC Ethernet NIC Driver, ver 2.3.0.53 [ 9.552434][ T1] e100: Intel(R) PRO/100 Network Driver, 3.5.24-k2-NAPI [ 9.554181][ T1] e100: Copyright(c) 1999-2006 Intel Corporation [ 9.555879][ T1] e1000: Intel(R) PRO/1000 Network Driver - version 7.3.21-k8-NAPI [ 9.557927][ T1] e1000: Copyright (c) 1999-2006 Intel Corporation. [ 9.562816][ T1] e1000e: Intel(R) PRO/1000 Network Driver - 3.2.6-k [ 9.565007][ T1] e1000e: Copyright(c) 1999 - 2015 Intel Corporation. [ 9.568649][ T1] mkiss: AX.25 Multikiss, Hans Albas PE1AYX [ 9.570805][ T1] AX.25: 6pack driver, Revision: 0.3.0 [ 9.572411][ T1] AX.25: bpqether driver version 004 [ 9.573791][ T1] PPP generic driver version 2.4.2 [ 9.575942][ T1] PPP BSD Compression module registered [ 9.577189][ T1] PPP Deflate Compression module registered [ 9.579101][ T1] PPP MPPE Compression module registered [ 9.580937][ T1] NET: Registered protocol family 24 [ 9.582943][ T1] PPTP driver version 0.8.5 [ 9.586035][ T1] SLIP: version 0.8.4-NET3.019-NEWTTY (dynamic channels, max=256) (6 bit encapsulation enabled). [ 9.588304][ T1] CSLIP: code copyright 1989 Regents of the University of California. [ 9.590856][ T1] SLIP linefill/keepalive option. [ 9.592488][ T1] hdlc: HDLC support module revision 1.22 [ 9.594247][ T1] x25_asy: X.25 async: version 0.00 ALPHA (dynamic channels, max=256) [ 9.596119][ T1] DLCI driver v0.35, 4 Jan 1997, mike.mclagan@linux.org. [ 9.597643][ T1] LAPB Ethernet driver version 0.02 [ 9.599159][ T1] usbcore: registered new interface driver rndis_wlan [ 9.601596][ T1] mac80211_hwsim: initializing netlink [ 9.624513][ T1] fakelb driver is marked as deprecated, please use mac802154_hwsim! [ 9.637382][ T1] ieee802154fakelb ieee802154fakelb: added 2 fake ieee802154 hardware devices [ 9.667311][ T1] mac802154_hwsim mac802154_hwsim: Added 2 mac802154 hwsim hardware radios [ 9.669532][ T1] VMware vmxnet3 virtual NIC driver - version 1.4.17.0-k-NAPI [ 9.672950][ T1] pegasus: v0.9.3 (2013/04/25), Pegasus/Pegasus II USB Ethernet driver [ 9.675735][ T1] usbcore: registered new interface driver pegasus [ 9.677555][ T1] usbcore: registered new interface driver rtl8150 [ 9.679481][ T1] usbcore: registered new interface driver r8152 [ 9.682345][ T1] usbcore: registered new interface driver asix [ 9.684387][ T1] usbcore: registered new interface driver ax88179_178a [ 9.686295][ T1] usbcore: registered new interface driver cdc_ether [ 9.687861][ T1] usbcore: registered new interface driver dm9601 [ 9.690035][ T1] usbcore: registered new interface driver smsc75xx [ 9.692092][ T1] usbcore: registered new interface driver smsc95xx [ 9.701531][ T1] usbcore: registered new interface driver net1080 [ 9.704337][ T1] usbcore: registered new interface driver rndis_host [ 9.706421][ T1] usbcore: registered new interface driver cdc_subset [ 9.708444][ T1] usbcore: registered new interface driver zaurus [ 9.710203][ T1] usbcore: registered new interface driver MOSCHIP usb-ethernet driver [ 9.712558][ T1] usbcore: registered new interface driver cdc_ncm [ 9.714404][ T1] usbcore: registered new interface driver cdc_mbim [ 9.740859][ T1] VFIO - User Level meta-driver version: 0.3 [ 9.760884][ C1] random: fast init done [ 9.765258][ T1] aoe: AoE v85 initialised. [ 9.770917][ T28] sd 0:0:1:0: Attached scsi generic sg0 type 0 [ 9.775410][ T1] ehci_hcd: USB 2.0 'Enhanced' Host Controller (EHCI) Driver [ 9.775830][ T582] sd 0:0:1:0: [sda] 4194304 512-byte logical blocks: (2.15 GB/2.00 GiB) [ 9.777053][ T1] ehci-pci: EHCI PCI platform driver [ 9.777831][ T1] ohci_hcd: USB 1.1 'Open' Host Controller (OHCI) Driver [ 9.778949][ T582] sd 0:0:1:0: [sda] 4096-byte physical blocks [ 9.779853][ T1] ohci-pci: OHCI PCI platform driver [ 9.783966][ T582] sd 0:0:1:0: [sda] Write Protect is off [ 9.786253][ T582] sd 0:0:1:0: [sda] Write cache: enabled, read cache: enabled, doesn't support DPO or FUA [ 9.786937][ T1] uhci_hcd: USB Universal Host Controller Interface driver [ 9.790466][ T1] usbcore: registered new interface driver cdc_acm [ 9.792686][ T1] cdc_acm: USB Abstract Control Model driver for USB modems and ISDN adapters [ 9.794484][ T1] usbcore: registered new interface driver usblp [ 9.797055][ T1] usbcore: registered new interface driver cdc_wdm [ 9.798856][ T1] usbcore: registered new interface driver uas [ 9.800262][ T1] usbcore: registered new interface driver usb-storage [ 9.801762][ T1] usbcore: registered new interface driver ums-realtek [ 9.803489][ T1] usbcore: registered new interface driver usbserial_generic [ 9.805498][ T1] usbserial: USB Serial support registered for generic [ 9.806835][ T1] usbcore: registered new interface driver ch341 [ 9.808042][ T1] usbserial: USB Serial support registered for ch341-uart [ 9.809449][ T1] usbcore: registered new interface driver cp210x [ 9.810730][ T1] usbserial: USB Serial support registered for cp210x [ 9.813461][ T1] usbcore: registered new interface driver ftdi_sio [ 9.814974][ T1] usbserial: USB Serial support registered for FTDI USB Serial Device [ 9.816508][ T1] usbcore: registered new interface driver keyspan [ 9.817713][ T1] usbserial: USB Serial support registered for Keyspan - (without firmware) [ 9.819394][ T1] usbserial: USB Serial support registered for Keyspan 1 port adapter [ 9.821878][ T1] usbserial: USB Serial support registered for Keyspan 2 port adapter [ 9.823613][ T1] usbserial: USB Serial support registered for Keyspan 4 port adapter [ 9.825858][ T1] usbcore: registered new interface driver option [ 9.827398][ T1] usbserial: USB Serial support registered for GSM modem (1-port) [ 9.829165][ T1] usbcore: registered new interface driver oti6858 [ 9.830527][ T1] usbserial: USB Serial support registered for oti6858 [ 9.833839][ T1] usbcore: registered new interface driver pl2303 [ 9.835936][ T1] usbserial: USB Serial support registered for pl2303 [ 9.837904][ T1] usbcore: registered new interface driver qcserial [ 9.839372][ T1] usbserial: USB Serial support registered for Qualcomm USB modem [ 9.842896][ T1] usbcore: registered new interface driver sierra [ 9.844474][ T1] usbserial: USB Serial support registered for Sierra USB modem [ 9.846153][ T1] usbcore: registered new interface driver usb_serial_simple [ 9.847582][ T1] usbserial: USB Serial support registered for carelink [ 9.849480][ T1] usbserial: USB Serial support registered for zio [ 9.850835][ T1] usbserial: USB Serial support registered for funsoft [ 9.853161][ T1] usbserial: USB Serial support registered for flashloader [ 9.854730][ T1] usbserial: USB Serial support registered for google [ 9.857234][ T1] usbserial: USB Serial support registered for libtransistor [ 9.859324][ T1] usbserial: USB Serial support registered for vivopay [ 9.860555][ T1] usbserial: USB Serial support registered for moto_modem [ 9.862167][ T1] usbserial: USB Serial support registered for motorola_tetra [ 9.863573][ T1] usbserial: USB Serial support registered for novatel_gps [ 9.865541][ T1] usbserial: USB Serial support registered for hp4x [ 9.866918][ T1] usbserial: USB Serial support registered for suunto [ 9.868223][ T1] usbserial: USB Serial support registered for siemens_mpi [ 9.872823][ T1] dummy_hcd dummy_hcd.0: USB Host+Gadget Emulator, driver 02 May 2005 [ 9.875403][ T1] dummy_hcd dummy_hcd.0: Dummy host controller [ 9.877569][ T1] dummy_hcd dummy_hcd.0: new USB bus registered, assigned bus number 1 [ 9.880180][ T1] usb usb1: New USB device found, idVendor=1d6b, idProduct=0002, bcdDevice= 5.05 [ 9.881873][ T1] usb usb1: New USB device strings: Mfr=3, Product=2, SerialNumber=1 [ 9.883387][ T1] usb usb1: Product: Dummy host controller [ 9.884481][ T1] usb usb1: Manufacturer: Linux 5.5.0-rc6-next-20200117-syzkaller dummy_hcd [ 9.885941][ T1] usb usb1: SerialNumber: dummy_hcd.0 [ 9.889555][ T1] hub 1-0:1.0: USB hub found [ 9.890641][ T1] hub 1-0:1.0: 1 port detected [ 9.893684][ T1] ================================================================== [ 9.894921][ T1] BUG: KASAN: slab-out-of-bounds in post_usb_notification+0xe5/0x170 [ 9.896117][ T1] Read of size 21 at addr ffff888218663cc0 by task swapper/0/1 [ 9.897397][ T1] [ 9.897873][ T1] CPU: 1 PID: 1 Comm: swapper/0 Not tainted 5.5.0-rc6-next-20200117-syzkaller #0 [ 9.899259][ T1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 9.900987][ T1] Call Trace: [ 9.901597][ T1] dump_stack+0x197/0x210 [ 9.901597][ T1] ? post_usb_notification+0xe5/0x170 [ 9.901597][ T1] print_address_description.constprop.0.cold+0xd4/0x30b [ 9.901597][ T1] ? post_usb_notification+0xe5/0x170 [ 9.901597][ T1] ? post_usb_notification+0xe5/0x170 [ 9.901597][ T1] __kasan_report.cold+0x1b/0x32 [ 9.901597][ T1] ? post_usb_notification+0xe5/0x170 [ 9.901597][ T1] kasan_report+0x12/0x20 [ 9.901597][ T1] check_memory_region+0x134/0x1a0 [ 9.901597][ T1] memcpy+0x24/0x50 [ 9.901597][ T1] post_usb_notification+0xe5/0x170 [ 9.901597][ T1] ? get_urb32+0x3d0/0x3d0 [ 9.901597][ T1] ? lock_acquire+0x190/0x410 [ 9.901597][ T1] ? blocking_notifier_call_chain+0x7d/0xb0 [ 9.901597][ T1] usbdev_notify+0x2c0/0x4a0 [ 9.901597][ T1] ? __kasan_check_write+0x14/0x20 [ 9.901597][ T1] ? down_read+0x109/0x440 [ 9.901597][ T1] ? usb_set_configuration+0xe85/0x16b0 [ 9.901597][ T1] notifier_call_chain+0xc2/0x230 [ 9.901597][ T1] blocking_notifier_call_chain+0x94/0xb0 [ 9.901597][ T1] usb_notify_add_device+0x22/0x30 [ 9.901597][ T1] generic_probe+0x8c/0xde [ 9.901597][ T1] usb_probe_device+0xa0/0xf0 [ 9.901597][ T1] ? usb_suspend+0x660/0x660 [ 9.901597][ T1] really_probe+0x291/0x700 [ 9.901597][ T1] driver_probe_device+0x110/0x220 [ 9.901597][ T1] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 9.901597][ T1] __device_attach_driver+0x1c9/0x230 [ 9.901597][ T1] bus_for_each_drv+0x172/0x1f0 [ 9.901597][ T1] ? driver_allows_async_probing+0x180/0x180 [ 9.901597][ T1] ? bus_rescan_devices+0x30/0x30 [ 9.901597][ T1] ? _raw_spin_unlock_irqrestore+0x9f/0xe0 [ 9.901597][ T1] __device_attach+0x237/0x390 [ 9.901597][ T1] ? device_bind_driver+0xd0/0xd0 [ 9.901597][ T1] ? __kasan_check_write+0x14/0x20 [ 9.901597][ T1] device_initial_probe+0x1b/0x20 [ 9.901597][ T1] bus_probe_device+0x1f1/0x2a0 [ 9.901597][ T1] device_add+0x14fe/0x1d00 [ 9.901597][ T1] ? usb_match_device+0xdb/0x560 [ 9.901597][ T1] ? uevent_show+0x370/0x370 [ 9.901597][ T1] usb_new_device.cold+0x74c/0x1063 [ 9.901597][ T1] ? kfree+0x226/0x2c0 [ 9.901597][ T1] ? hub_disconnect+0x450/0x450 [ 9.901597][ T1] ? usb_get_device_descriptor+0xba/0xf0 [ 9.901597][ T1] usb_add_hcd.cold+0x10f8/0x1496 [ 9.901597][ T1] dummy_hcd_probe+0x1ae/0x32c [ 9.901597][ T1] ? platform_drv_remove+0xa0/0xa0 [ 9.901597][ T1] ? dummy_enable.cold+0x4b/0x4b [ 9.901597][ T1] platform_drv_probe+0x8d/0x140 [ 9.901597][ T1] ? platform_drv_remove+0xa0/0xa0 [ 9.901597][ T1] really_probe+0x291/0x700 [ 9.901597][ T1] driver_probe_device+0x110/0x220 [ 9.901597][ T1] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 9.901597][ T1] __device_attach_driver+0x1c9/0x230 [ 9.901597][ T1] bus_for_each_drv+0x172/0x1f0 [ 9.901597][ T1] ? driver_allows_async_probing+0x180/0x180 [ 9.901597][ T1] ? bus_rescan_devices+0x30/0x30 [ 9.901597][ T1] ? _raw_spin_unlock_irqrestore+0x9f/0xe0 [ 9.901597][ T1] __device_attach+0x237/0x390 [ 9.901597][ T1] ? device_bind_driver+0xd0/0xd0 [ 9.901597][ T1] ? __kasan_check_write+0x14/0x20 [ 9.901597][ T1] device_initial_probe+0x1b/0x20 [ 9.901597][ T1] bus_probe_device+0x1f1/0x2a0 [ 9.901597][ T1] device_add+0x14fe/0x1d00 [ 9.901597][ T1] ? dev_set_name+0xbb/0xf0 [ 9.901597][ T1] ? uevent_show+0x370/0x370 [ 9.901597][ T1] platform_device_add+0x365/0x6e0 [ 9.901597][ T1] ? kfree+0x28b/0x2c0 [ 9.901597][ T1] init+0x534/0xab8 [ 9.901597][ T1] ? usb_udc_init+0x9c/0x9c [ 9.901597][ T1] ? lock_downgrade+0x920/0x920 [ 9.901597][ T1] ? lock_downgrade+0x920/0x920 [ 9.901597][ T1] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 9.901597][ T1] ? debug_smp_processor_id+0x33/0x18a [ 9.901597][ T1] ? rcu_lockdep_current_cpu_online+0xe3/0x130 [ 9.901597][ T1] ? usb_udc_init+0x9c/0x9c [ 9.901597][ T1] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 9.901597][ T1] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 9.901597][ T1] ? configfs_register_subsystem+0x208/0x390 [ 9.901597][ T1] ? usb_udc_init+0x9c/0x9c [ 9.901597][ T1] do_one_initcall+0x120/0x820 [ 9.901597][ T1] ? boot_config_checksum+0xa0/0xa0 [ 9.901597][ T1] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 9.901597][ T1] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 9.901597][ T1] ? __kmalloc+0x608/0x770 [ 9.901597][ T1] ? __kasan_check_read+0x11/0x20 [ 9.901597][ T1] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 9.901597][ T1] kernel_init_freeable+0x522/0x5d0 [ 9.901597][ T1] ? rest_init+0x371/0x371 [ 9.901597][ T1] kernel_init+0x12/0x1bf [ 9.901597][ T1] ret_from_fork+0x24/0x30 [ 9.901597][ T1] [ 9.901597][ T1] Allocated by task 1: [ 9.901597][ T1] save_stack+0x23/0x90 [ 9.901597][ T1] __kasan_kmalloc.constprop.0+0xcf/0xe0 [ 9.901597][ T1] kasan_kmalloc+0x9/0x10 [ 9.901597][ T1] __kmalloc_track_caller+0x15f/0x760 [ 9.901597][ T1] kvasprintf+0xc8/0x170 [ 9.901597][ T1] kvasprintf_const+0x65/0x190 [ 9.901597][ T1] kobject_set_name_vargs+0x5b/0x150 [ 9.901597][ T1] dev_set_name+0xbb/0xf0 [ 9.901597][ T1] usb_alloc_dev+0xcc4/0xf86 [ 9.901597][ T1] usb_add_hcd.cold+0x3c1/0x1496 [ 9.901597][ T1] dummy_hcd_probe+0x1ae/0x32c [ 9.901597][ T1] platform_drv_probe+0x8d/0x140 [ 9.901597][ T1] really_probe+0x291/0x700 [ 9.901597][ T1] driver_probe_device+0x110/0x220 [ 9.901597][ T1] __device_attach_driver+0x1c9/0x230 [ 9.901597][ T1] bus_for_each_drv+0x172/0x1f0 [ 9.901597][ T1] __device_attach+0x237/0x390 [ 9.901597][ T1] device_initial_probe+0x1b/0x20 [ 9.901597][ T1] bus_probe_device+0x1f1/0x2a0 [ 9.901597][ T1] device_add+0x14fe/0x1d00 [ 9.901597][ T1] platform_device_add+0x365/0x6e0 [ 9.901597][ T1] init+0x534/0xab8 [ 9.901597][ T1] do_one_initcall+0x120/0x820 [ 9.901597][ T1] kernel_init_freeable+0x522/0x5d0 [ 9.901597][ T1] kernel_init+0x12/0x1bf [ 9.901597][ T1] ret_from_fork+0x24/0x30 [ 9.901597][ T1] [ 9.901597][ T1] Freed by task 0: [ 9.901597][ T1] (stack is not available) [ 9.901597][ T1] [ 9.901597][ T1] The buggy address belongs to the object at ffff888218663cc0 [ 9.901597][ T1] which belongs to the cache kmalloc-32 of size 32 [ 9.901597][ T1] The buggy address is located 0 bytes inside of [ 9.901597][ T1] 32-byte region [ffff888218663cc0, ffff888218663ce0) [ 9.901597][ T1] The buggy address belongs to the page: [ 9.901597][ T1] page:ffffea00086198c0 refcount:1 mapcount:0 mapping:ffff8880aa4001c0 index:0xffff888218663fc1 [ 9.901597][ T1] flags: 0x57ffe0000000200(slab) [ 9.901597][ T1] raw: 057ffe0000000200 ffffea0008617148 ffff88821bc00248 ffff8880aa4001c0 [ 9.901597][ T1] raw: ffff888218663fc1 ffff888218663000 000000010000003f 0000000000000000 [ 9.901597][ T1] page dumped because: kasan: bad access detected [ 9.901597][ T1] [ 9.901597][ T1] Memory state around the buggy address: [ 9.901597][ T1] ffff888218663b80: 00 04 fc fc fc fc fc fc fb fb fb fb fc fc fc fc [ 9.901597][ T1] ffff888218663c00: 00 04 fc fc fc fc fc fc 00 fc fc fc fc fc fc fc [ 9.901597][ T1] >ffff888218663c80: 06 fc fc fc fc fc fc fc 05 fc fc fc fc fc fc fc [ 9.901597][ T1] ^ [ 9.901597][ T1] ffff888218663d00: fb fb fb fb fc fc fc fc fb fb fb fb fc fc fc fc [ 9.901597][ T1] ffff888218663d80: 00 00 00 01 fc fc fc fc fb fb fb fb fc fc fc fc [ 9.901597][ T1] ================================================================== [ 9.901597][ T1] Disabling lock debugging due to kernel taint [ 10.053727][ T1] Kernel panic - not syncing: panic_on_warn set ... [ 10.054786][ T1] CPU: 1 PID: 1 Comm: swapper/0 Tainted: G B 5.5.0-rc6-next-20200117-syzkaller #0 [ 10.056267][ T1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 10.058001][ T1] Call Trace: [ 10.058810][ T1] dump_stack+0x197/0x210 [ 10.059452][ T1] panic+0x2e3/0x75c [ 10.060212][ T1] ? add_taint.cold+0x16/0x16 [ 10.060954][ T1] ? post_usb_notification+0xe5/0x170 [ 10.062030][ T1] ? preempt_schedule+0x4b/0x60 [ 10.062794][ T1] ? ___preempt_schedule+0x16/0x18 [ 10.063626][ T1] ? trace_hardirqs_on+0x5e/0x240 [ 10.063626][ T1] ? post_usb_notification+0xe5/0x170 [ 10.063626][ T1] end_report+0x47/0x4f [ 10.063626][ T1] ? post_usb_notification+0xe5/0x170 [ 10.063626][ T1] __kasan_report.cold+0xe/0x32 [ 10.063626][ T1] ? post_usb_notification+0xe5/0x170 [ 10.063626][ T1] kasan_report+0x12/0x20 [ 10.063626][ T1] check_memory_region+0x134/0x1a0 [ 10.063626][ T1] memcpy+0x24/0x50 [ 10.063626][ T1] post_usb_notification+0xe5/0x170 [ 10.063626][ T1] ? get_urb32+0x3d0/0x3d0 [ 10.063626][ T1] ? lock_acquire+0x190/0x410 [ 10.063626][ T1] ? blocking_notifier_call_chain+0x7d/0xb0 [ 10.063626][ T1] usbdev_notify+0x2c0/0x4a0 [ 10.063626][ T1] ? __kasan_check_write+0x14/0x20 [ 10.063626][ T1] ? down_read+0x109/0x440 [ 10.078149][ T1] ? usb_set_configuration+0xe85/0x16b0 [ 10.078149][ T1] notifier_call_chain+0xc2/0x230 [ 10.078149][ T1] blocking_notifier_call_chain+0x94/0xb0 [ 10.078149][ T1] usb_notify_add_device+0x22/0x30 [ 10.078149][ T1] generic_probe+0x8c/0xde [ 10.078149][ T1] usb_probe_device+0xa0/0xf0 [ 10.078149][ T1] ? usb_suspend+0x660/0x660 [ 10.078149][ T1] really_probe+0x291/0x700 [ 10.078149][ T1] driver_probe_device+0x110/0x220 [ 10.078149][ T1] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 10.078149][ T1] __device_attach_driver+0x1c9/0x230 [ 10.078149][ T1] bus_for_each_drv+0x172/0x1f0 [ 10.078149][ T1] ? driver_allows_async_probing+0x180/0x180 [ 10.078149][ T1] ? bus_rescan_devices+0x30/0x30 [ 10.078149][ T1] ? _raw_spin_unlock_irqrestore+0x9f/0xe0 [ 10.078149][ T1] __device_attach+0x237/0x390 [ 10.078149][ T1] ? device_bind_driver+0xd0/0xd0 [ 10.078149][ T1] ? __kasan_check_write+0x14/0x20 [ 10.078149][ T1] device_initial_probe+0x1b/0x20 [ 10.078149][ T1] bus_probe_device+0x1f1/0x2a0 [ 10.078149][ T1] device_add+0x14fe/0x1d00 [ 10.078149][ T1] ? usb_match_device+0xdb/0x560 [ 10.078149][ T1] ? uevent_show+0x370/0x370 [ 10.078149][ T1] usb_new_device.cold+0x74c/0x1063 [ 10.078149][ T1] ? kfree+0x226/0x2c0 [ 10.078149][ T1] ? hub_disconnect+0x450/0x450 [ 10.078149][ T1] ? usb_get_device_descriptor+0xba/0xf0 [ 10.078149][ T1] usb_add_hcd.cold+0x10f8/0x1496 [ 10.078149][ T1] dummy_hcd_probe+0x1ae/0x32c [ 10.078149][ T1] ? platform_drv_remove+0xa0/0xa0 [ 10.078149][ T1] ? dummy_enable.cold+0x4b/0x4b [ 10.078149][ T1] platform_drv_probe+0x8d/0x140 [ 10.078149][ T1] ? platform_drv_remove+0xa0/0xa0 [ 10.078149][ T1] really_probe+0x291/0x700 [ 10.078149][ T1] driver_probe_device+0x110/0x220 [ 10.078149][ T1] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 10.078149][ T1] __device_attach_driver+0x1c9/0x230 [ 10.078149][ T1] bus_for_each_drv+0x172/0x1f0 [ 10.078149][ T1] ? driver_allows_async_probing+0x180/0x180 [ 10.078149][ T1] ? bus_rescan_devices+0x30/0x30 [ 10.078149][ T1] ? _raw_spin_unlock_irqrestore+0x9f/0xe0 [ 10.078149][ T1] __device_attach+0x237/0x390 [ 10.078149][ T1] ? device_bind_driver+0xd0/0xd0 [ 10.078149][ T1] ? __kasan_check_write+0x14/0x20 [ 10.078149][ T1] device_initial_probe+0x1b/0x20 [ 10.078149][ T1] bus_probe_device+0x1f1/0x2a0 [ 10.078149][ T1] device_add+0x14fe/0x1d00 [ 10.078149][ T1] ? dev_set_name+0xbb/0xf0 [ 10.078149][ T1] ? uevent_show+0x370/0x370 [ 10.078149][ T1] platform_device_add+0x365/0x6e0 [ 10.078149][ T1] ? kfree+0x28b/0x2c0 [ 10.078149][ T1] init+0x534/0xab8 [ 10.078149][ T1] ? usb_udc_init+0x9c/0x9c [ 10.078149][ T1] ? lock_downgrade+0x920/0x920 [ 10.078149][ T1] ? lock_downgrade+0x920/0x920 [ 10.078149][ T1] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 10.078149][ T1] ? debug_smp_processor_id+0x33/0x18a [ 10.078149][ T1] ? rcu_lockdep_current_cpu_online+0xe3/0x130 [ 10.078149][ T1] ? usb_udc_init+0x9c/0x9c [ 10.078149][ T1] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 10.078149][ T1] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 10.078149][ T1] ? configfs_register_subsystem+0x208/0x390 [ 10.078149][ T1] ? usb_udc_init+0x9c/0x9c [ 10.078149][ T1] do_one_initcall+0x120/0x820 [ 10.078149][ T1] ? boot_config_checksum+0xa0/0xa0 [ 10.078149][ T1] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 10.078149][ T1] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 10.078149][ T1] ? __kmalloc+0x608/0x770 [ 10.078149][ T1] ? __kasan_check_read+0x11/0x20 [ 10.078149][ T1] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 10.078149][ T1] kernel_init_freeable+0x522/0x5d0 [ 10.078149][ T1] ? rest_init+0x371/0x371 [ 10.078149][ T1] kernel_init+0x12/0x1bf [ 10.078149][ T1] ret_from_fork+0x24/0x30 [ 10.078149][ T1] Kernel Offset: disabled [ 10.078149][ T1] Rebooting in 86400 seconds..