[ 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 11164653915 cycles [ 0.002372][ T0] clocksource: kvm-clock: mask: 0xffffffffffffffff max_cycles: 0x1cd42e4dffb, max_idle_ns: 881590591483 ns [ 0.007499][ T0] tsc: Detected 2300.000 MHz processor [ 0.011488][ T0] last_pfn = 0x220000 max_arch_pfn = 0x400000000 [ 0.013209][ T0] x86/PAT: Configuration [0-7]: WB WC UC- UC WB WP UC- WT [ 0.014923][ T0] last_pfn = 0xbfffd max_arch_pfn = 0x400000000 [ 0.022516][ T0] found SMP MP-table at [mem 0x000f2470-0x000f247f] [ 0.025403][ T0] check: Scanning 1 areas for low memory corruption [ 0.026836][ T0] Using GB pages for direct mapping [ 0.030292][ T0] ACPI: Early table checksum verification disabled [ 0.031824][ T0] ACPI: RSDP 0x00000000000F21F0 000014 (v00 Google) [ 0.033825][ T0] ACPI: RSDT 0x00000000BFFFFFC0 000038 (v01 Google GOOGRSDT 00000001 GOOG 00000001) [ 0.036288][ T0] ACPI: FACP 0x00000000BFFFF380 0000F4 (v02 Google GOOGFACP 00000001 GOOG 00000001) [ 0.038669][ T0] ACPI: DSDT 0x00000000BFFFDAC0 0018BA (v01 Google GOOGDSDT 00000001 GOOG 00000001) [ 0.040046][ T0] ACPI: FACS 0x00000000BFFFDA80 000040 [ 0.040844][ T0] ACPI: FACS 0x00000000BFFFDA80 000040 [ 0.041610][ T0] ACPI: SRAT 0x00000000BFFFFEB0 0000C8 (v01 Google GOOGSRAT 00000001 GOOG 00000001) [ 0.043196][ T0] ACPI: APIC 0x00000000BFFFFE00 000076 (v01 Google GOOGAPIC 00000001 GOOG 00000001) [ 0.044744][ T0] ACPI: SSDT 0x00000000BFFFF480 000980 (v01 Google GOOGSSDT 00000001 GOOG 00000001) [ 0.046876][ T0] ACPI: WAET 0x00000000BFFFFE80 000028 (v01 Google GOOGWAET 00000001 GOOG 00000001) [ 0.048698][ T0] SRAT: PXM 0 -> APIC 0x00 -> Node 0 [ 0.049833][ T0] SRAT: PXM 0 -> APIC 0x01 -> Node 0 [ 0.050749][ T0] ACPI: SRAT: Node 0 PXM 0 [mem 0x00000000-0x0009ffff] [ 0.051696][ T0] ACPI: SRAT: Node 0 PXM 0 [mem 0x00100000-0xbfffffff] [ 0.052780][ T0] ACPI: SRAT: Node 0 PXM 0 [mem 0x100000000-0x21fffffff] [ 0.053798][ T0] NUMA: Node 0 [mem 0x00000000-0x0009ffff] + [mem 0x00100000-0xbfffffff] -> [mem 0x00000000-0xbfffffff] [ 0.055812][ T0] NUMA: Node 0 [mem 0x00000000-0xbfffffff] + [mem 0x100000000-0x21fffffff] -> [mem 0x00000000-0x21fffffff] [ 0.057726][ T0] Faking node 0 at [mem 0x0000000000000000-0x000000012fffffff] (4864MB) [ 0.059460][ T0] Faking node 1 at [mem 0x0000000130000000-0x000000021fffffff] (3840MB) [ 0.061361][ T0] NODE_DATA(0) allocated [mem 0x12fffb000-0x12fffffff] [ 0.063326][ T0] NODE_DATA(1) allocated [mem 0x21fff8000-0x21fffcfff] [ 0.118049][ T0] Zone ranges: [ 0.118611][ T0] DMA [mem 0x0000000000001000-0x0000000000ffffff] [ 0.119761][ T0] DMA32 [mem 0x0000000001000000-0x00000000ffffffff] [ 0.121075][ T0] Normal [mem 0x0000000100000000-0x000000021fffffff] [ 0.121978][ T0] Device empty [ 0.122488][ T0] Movable zone start for each node [ 0.123267][ T0] Early memory node ranges [ 0.123843][ T0] node 0: [mem 0x0000000000001000-0x000000000009efff] [ 0.124823][ T0] node 0: [mem 0x0000000000100000-0x00000000bfffcfff] [ 0.125838][ T0] node 0: [mem 0x0000000100000000-0x000000012fffffff] [ 0.127164][ T0] node 1: [mem 0x0000000130000000-0x000000021fffffff] [ 0.128840][ T0] Zeroed struct page in unavailable ranges: 101 pages [ 0.128847][ T0] Initmem setup node 0 [mem 0x0000000000001000-0x000000012fffffff] [ 0.188353][ T0] Initmem setup node 1 [mem 0x0000000130000000-0x000000021fffffff] [ 0.667099][ T0] kasan: KernelAddressSanitizer initialized [ 0.668772][ T0] ACPI: PM-Timer IO Port: 0xb008 [ 0.669541][ T0] ACPI: LAPIC_NMI (acpi_id[0xff] dfl dfl lint[0x1]) [ 0.670796][ T0] IOAPIC[0]: apic_id 0, version 17, address 0xfec00000, GSI 0-23 [ 0.681593][ T0] ACPI: INT_SRC_OVR (bus 0 bus_irq 5 global_irq 5 high level) [ 0.682803][ T0] ACPI: INT_SRC_OVR (bus 0 bus_irq 9 global_irq 9 high level) [ 0.684132][ T0] ACPI: INT_SRC_OVR (bus 0 bus_irq 10 global_irq 10 high level) [ 0.685308][ T0] ACPI: INT_SRC_OVR (bus 0 bus_irq 11 global_irq 11 high level) [ 0.686430][ T0] Using ACPI (MADT) for SMP configuration information [ 0.687367][ T0] smpboot: Allowing 2 CPUs, 0 hotplug CPUs [ 0.688497][ T0] PM: hibernation: Registered nosave memory: [mem 0x00000000-0x00000fff] [ 0.690283][ T0] PM: hibernation: Registered nosave memory: [mem 0x0009f000-0x0009ffff] [ 0.691680][ T0] PM: hibernation: Registered nosave memory: [mem 0x000a0000-0x000effff] [ 0.692842][ T0] PM: hibernation: Registered nosave memory: [mem 0x000f0000-0x000fffff] [ 0.694004][ T0] PM: hibernation: Registered nosave memory: [mem 0xbfffd000-0xbfffffff] [ 0.695176][ T0] PM: hibernation: Registered nosave memory: [mem 0xc0000000-0xfffbbfff] [ 0.696413][ T0] PM: hibernation: Registered nosave memory: [mem 0xfffbc000-0xffffffff] [ 0.697567][ T0] [mem 0xc0000000-0xfffbbfff] available for PCI devices [ 0.698596][ T0] Booting paravirtualized kernel on KVM [ 0.699414][ T0] clocksource: refined-jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604462750000 ns [ 0.701292][ T0] setup_percpu: NR_CPUS:64 nr_cpumask_bits:64 nr_cpu_ids:2 nr_node_ids:2 [ 0.703590][ T0] percpu: Embedded 66 pages/cpu s232520 r8192 d29624 u1048576 [ 0.704850][ T0] PV qspinlock hash table entries: 256 (order: 0, 4096 bytes, linear) [ 0.706777][ T0] Built 2 zonelists, mobility grouping on. Total pages: 1935238 [ 0.708012][ T0] Policy zone: Normal [ 0.708545][ 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 [ 0.720848][ T0] mem auto-init: stack:off, heap alloc:on, heap free:off [ 1.590598][ T0] Memory: 6479668K/7863916K available (116745K kernel code, 16928K rwdata, 21196K rodata, 2880K init, 24644K bss, 1384248K reserved, 0K cma-reserved) [ 1.599454][ T0] Running RCU self tests [ 1.600192][ T0] rcu: Preemptible hierarchical RCU implementation. [ 1.601403][ T0] rcu: RCU lockdep checking is enabled. [ 1.602268][ T0] rcu: RCU restricting CPUs from NR_CPUS=64 to nr_cpu_ids=2. [ 1.603461][ T0] rcu: RCU callback double-/use-after-free debug enabled. [ 1.604769][ T0] Tasks RCU enabled. [ 1.605309][ T0] rcu: RCU calculated value of scheduler-enlistment delay is 10 jiffies. [ 1.606813][ T0] rcu: Adjusting geometry for rcu_fanout_leaf=16, nr_cpu_ids=2 [ 1.615708][ T0] NR_IRQS: 4352, nr_irqs: 440, preallocated irqs: 16 [ 1.617335][ T0] random: get_random_bytes called from start_kernel+0x974/0xd63 with crng_init=0 [ 1.621382][ T0] Console: colour VGA+ 80x25 [ 1.623960][ T0] printk: console [ttyS0] enabled [ 1.623960][ T0] printk: console [ttyS0] enabled [ 1.625913][ T0] printk: bootconsole [earlyser0] disabled [ 1.625913][ T0] printk: bootconsole [earlyser0] disabled [ 1.627752][ T0] Lock dependency validator: Copyright (c) 2006 Red Hat, Inc., Ingo Molnar [ 1.629088][ T0] ... MAX_LOCKDEP_SUBCLASSES: 8 [ 1.629853][ T0] ... MAX_LOCK_DEPTH: 48 [ 1.630649][ T0] ... MAX_LOCKDEP_KEYS: 8192 [ 1.631530][ T0] ... CLASSHASH_SIZE: 4096 [ 1.632261][ T0] ... MAX_LOCKDEP_ENTRIES: 32768 [ 1.633049][ T0] ... MAX_LOCKDEP_CHAINS: 65536 [ 1.633808][ T0] ... CHAINHASH_SIZE: 32768 [ 1.634574][ T0] memory used by lock dependency info: 6237 kB [ 1.635421][ T0] memory used for stack traces: 4224 kB [ 1.636201][ T0] per task-struct memory footprint: 1920 bytes [ 1.638210][ T0] mempolicy: Enabling automatic NUMA balancing. Configure with numa_balancing= or the kernel.numa_balancing sysctl [ 1.640929][ T0] ACPI: Core revision 20200110 [ 1.642582][ T0] APIC: Switch to symmetric I/O mode setup [ 1.644039][ T0] x2apic enabled [ 1.646038][ T0] Switched APIC routing to physical x2apic. [ 1.651348][ T0] ..TIMER: vector=0x30 apic1=0 pin1=0 apic2=-1 pin2=-1 [ 1.652640][ T0] clocksource: tsc-early: mask: 0xffffffffffffffff max_cycles: 0x212735223b2, max_idle_ns: 440795277976 ns [ 1.654557][ T0] Calibrating delay loop (skipped) preset value.. 4600.00 BogoMIPS (lpj=23000000) [ 1.655934][ T0] pid_max: default: 32768 minimum: 301 [ 1.658314][ T0] LSM: Security Framework initializing [ 1.659789][ T0] LSM: security= is ignored because it is superseded by lsm= [ 1.661302][ T0] Yama: becoming mindful. [ 1.662143][ T0] TOMOYO Linux initialized [ 1.664925][ T0] AppArmor: AppArmor initialized [ 1.673040][ T0] Dentry cache hash table entries: 1048576 (order: 11, 8388608 bytes, vmalloc) [ 1.678272][ T0] Inode-cache hash table entries: 524288 (order: 10, 4194304 bytes, vmalloc) [ 1.679892][ T0] Mount-cache hash table entries: 16384 (order: 5, 131072 bytes, vmalloc) [ 1.681394][ T0] Mountpoint-cache hash table entries: 16384 (order: 5, 131072 bytes, vmalloc) [ 1.683084][ T0] *** VALIDATE tmpfs *** [ 1.686336][ T0] *** VALIDATE proc *** [ 1.687913][ T0] *** VALIDATE cgroup1 *** [ 1.688652][ T0] *** VALIDATE cgroup2 *** [ 1.690011][ T0] Last level iTLB entries: 4KB 1024, 2MB 1024, 4MB 1024 [ 1.691109][ T0] Last level dTLB entries: 4KB 1024, 2MB 1024, 4MB 1024, 1GB 4 [ 1.692316][ T0] Spectre V1 : Mitigation: usercopy/swapgs barriers and __user pointer sanitization [ 1.693796][ T0] Spectre V2 : Spectre mitigation: kernel not compiled with retpoline; no mitigation available! [ 1.693831][ T0] Speculative Store Bypass: Mitigation: Speculative Store Bypass disabled via prctl [ 1.696025][ T0] MDS: Mitigation: Clear CPU buffers [ 1.697590][ T0] Freeing SMP alternatives memory: 96K [ 1.822744][ T1] smpboot: CPU0: Intel(R) Xeon(R) CPU @ 2.30GHz (family: 0x6, model: 0x3f, stepping: 0x0) [ 1.874641][ T1] Performance Events: unsupported p6 CPU model 63 no PMU driver, software events only. [ 1.894593][ T1] rcu: Hierarchical SRCU implementation. [ 1.934589][ T1] smp: Bringing up secondary CPUs ... [ 2.017657][ T1] x86: Booting SMP configuration: [ 2.018679][ T1] .... node #0, CPUs: #1 [ 0.047371][ T0] kvm-clock: cpu 1, msr ae1d041, secondary cpu clock [ 2.022941][ 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. [ 2.024690][ T1] smp: Brought up 2 nodes, 2 CPUs [ 2.025551][ T1] smpboot: Max logical packages: 1 [ 2.026374][ T1] smpboot: Total of 2 processors activated (9200.00 BogoMIPS) [ 2.027954][ T1] NMI watchdog: Perf NMI watchdog permanently disabled [ 2.035693][ T1] devtmpfs: initialized [ 2.035867][ T1] x86/mm: Memory block size: 128MB [ 2.064589][ T1] clocksource: jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604462750000 ns [ 2.067072][ T1] futex hash table entries: 512 (order: 4, 65536 bytes, vmalloc) [ 2.069429][ T1] xor: automatically using best checksumming function avx [ 2.071349][ T1] PM: RTC time: 14:20:09, date: 2020-01-21 [ 2.072568][ T1] thermal_sys: Registered thermal governor 'step_wise' [ 2.072573][ T1] thermal_sys: Registered thermal governor 'user_space' [ 2.068546][ T25] kworker/u4:0 (25) used greatest stack depth: 27536 bytes left [ 2.078825][ T1] NET: Registered protocol family 16 [ 2.083181][ T1] audit: initializing netlink subsys (disabled) [ 2.084694][ T27] audit: type=2000 audit(1579616409.428:1): state=initialized audit_enabled=0 res=1 [ 2.087418][ T1] cpuidle: using governor menu [ 2.092574][ T1] ACPI: bus type PCI registered [ 2.096519][ T1] dca service started, version 1.12.1 [ 2.098994][ T1] PCI: Using configuration type 1 for base access [ 2.153070][ T79] kworker/u4:1 (79) used greatest stack depth: 27440 bytes left [ 2.170810][ T163] kworker/u4:1 (163) used greatest stack depth: 27128 bytes left [ 2.572765][ T1] WARNING: workqueue cpumask: online intersect > possible intersect [ 2.577512][ T1] HugeTLB registered 1.00 GiB page size, pre-allocated 0 pages [ 2.577512][ T1] HugeTLB registered 2.00 MiB page size, pre-allocated 0 pages [ 2.634741][ T1] cryptd: max_cpu_qlen set to 1000 [ 2.874629][ T1] raid6: avx2x4 gen() 8401 MB/s [ 3.044573][ T1] raid6: avx2x4 xor() 4973 MB/s [ 3.214573][ T1] raid6: avx2x2 gen() 6757 MB/s [ 3.384575][ T1] raid6: avx2x2 xor() 3024 MB/s [ 3.554577][ T1] raid6: avx2x1 gen() 4168 MB/s [ 3.724573][ T1] raid6: avx2x1 xor() 1702 MB/s [ 3.894578][ T1] raid6: sse2x4 gen() 5033 MB/s [ 4.056254][ T1] raid6: sse2x4 xor() 2720 MB/s [ 4.226273][ T1] raid6: sse2x2 gen() 3593 MB/s [ 4.396233][ T1] raid6: sse2x2 xor() 1615 MB/s [ 4.566236][ T1] raid6: sse2x1 gen() 2102 MB/s [ 4.736234][ T1] raid6: sse2x1 xor() 845 MB/s [ 4.741459][ T1] raid6: using algorithm avx2x4 gen() 8401 MB/s [ 4.754581][ T1] raid6: .... xor() 4973 MB/s, rmw enabled [ 4.760392][ T1] raid6: using avx2x2 recovery algorithm [ 4.765696][ T1] ACPI: Added _OSI(Module Device) [ 4.770745][ T1] ACPI: Added _OSI(Processor Device) [ 4.774837][ T1] ACPI: Added _OSI(3.0 _SCP Extensions) [ 4.784574][ T1] ACPI: Added _OSI(Processor Aggregator Device) [ 4.790816][ T1] ACPI: Added _OSI(Linux-Dell-Video) [ 4.794589][ T1] ACPI: Added _OSI(Linux-Lenovo-NV-HDMI-Audio) [ 4.800733][ T1] ACPI: Added _OSI(Linux-HPI-Hybrid-Graphics) [ 4.844436][ T1] ACPI: 2 ACPI AML tables successfully acquired and loaded [ 4.933001][ T1] ACPI: Interpreter enabled [ 4.934858][ T1] ACPI: (supports S0 S3 S4 S5) [ 4.939631][ T1] ACPI: Using IOAPIC for interrupt routing [ 4.954822][ T1] PCI: Using host bridge windows from ACPI; if necessary, use "pci=nocrs" and report a bug [ 4.966684][ T1] ACPI: Enabled 16 GPEs in block 00 to 0F [ 5.050272][ T1] ACPI: PCI Root Bridge [PCI0] (domain 0000 [bus 00-ff]) [ 5.064627][ T1] acpi PNP0A03:00: _OSC: OS supports [ASPM ClockPM Segments MSI HPX-Type3] [ 5.073194][ T1] acpi PNP0A03:00: fail to add MMCONFIG information, can't access extended PCI configuration space under this bridge. [ 5.089233][ T1] PCI host bridge to bus 0000:00 [ 5.094586][ T1] pci_bus 0000:00: Unknown NUMA node; performance will be reduced [ 5.104589][ T1] pci_bus 0000:00: root bus resource [io 0x0000-0x0cf7 window] [ 5.112331][ T1] pci_bus 0000:00: root bus resource [io 0x0d00-0xffff window] [ 5.114598][ T1] pci_bus 0000:00: root bus resource [mem 0x000a0000-0x000bffff window] [ 5.124593][ T1] pci_bus 0000:00: root bus resource [mem 0xc0000000-0xfebfffff window] [ 5.134596][ T1] pci_bus 0000:00: root bus resource [bus 00-ff] [ 5.140962][ T1] pci 0000:00:00.0: [8086:1237] type 00 class 0x060000 [ 5.154571][ T1] pci 0000:00:01.0: [8086:7110] type 00 class 0x060100 [ 5.189565][ T1] pci 0000:00:01.3: [8086:7113] type 00 class 0x068000 [ 5.208878][ T1] pci 0000:00:01.3: quirk: [io 0xb000-0xb03f] claimed by PIIX4 ACPI [ 5.227785][ T1] pci 0000:00:03.0: [1af4:1004] type 00 class 0x000000 [ 5.241384][ T1] pci 0000:00:03.0: reg 0x10: [io 0xc000-0xc03f] [ 5.246797][ T1] pci 0000:00:03.0: reg 0x14: [mem 0xfebfd000-0xfebfd07f] [ 5.274763][ T1] pci 0000:00:04.0: [1af4:1000] type 00 class 0x020000 [ 5.290424][ T1] pci 0000:00:04.0: reg 0x10: [io 0xc040-0xc07f] [ 5.309571][ T1] pci 0000:00:04.0: reg 0x14: [mem 0xfebfe000-0xfebfe07f] [ 5.335054][ T1] pci 0000:00:05.0: [1af4:1005] type 00 class 0x00ff00 [ 5.352138][ T1] pci 0000:00:05.0: reg 0x10: [io 0xc080-0xc09f] [ 5.355938][ T1] pci 0000:00:05.0: reg 0x14: [mem 0xfebff000-0xfebff03f] [ 5.395603][ T1] ACPI: PCI Interrupt Link [LNKA] (IRQs 5 *10 11) [ 5.405123][ T1] ACPI: PCI Interrupt Link [LNKB] (IRQs 5 *10 11) [ 5.414418][ T1] ACPI: PCI Interrupt Link [LNKC] (IRQs 5 10 *11) [ 5.427804][ T1] ACPI: PCI Interrupt Link [LNKD] (IRQs 5 10 *11) [ 5.436834][ T1] ACPI: PCI Interrupt Link [LNKS] (IRQs *9) [ 5.455621][ T1] iommu: Default domain type: Translated [ 5.460691][ T1] vgaarb: loaded [ 5.469045][ T1] SCSI subsystem initialized [ 5.477130][ T1] ACPI: bus type USB registered [ 5.482688][ T1] usbcore: registered new interface driver usbfs [ 5.485115][ T1] usbcore: registered new interface driver hub [ 5.494794][ T1] usbcore: registered new device driver usb [ 5.501884][ T1] mc: Linux media interface: v0.10 [ 5.504774][ T1] videodev: Linux video capture interface: v2.00 [ 5.515427][ T1] pps_core: LinuxPPS API ver. 1 registered [ 5.521247][ T1] pps_core: Software ver. 5.3.6 - Copyright 2005-2007 Rodolfo Giometti [ 5.524697][ T1] PTP clock support registered [ 5.535509][ T1] EDAC MC: Ver: 3.0.0 [ 5.545400][ T1] Advanced Linux Sound Architecture Driver Initialized. [ 5.552807][ T1] PCI: Using ACPI for IRQ routing [ 5.557828][ T1] Bluetooth: Core ver 2.22 [ 5.564822][ T1] NET: Registered protocol family 31 [ 5.570149][ T1] Bluetooth: HCI device and connection manager initialized [ 5.574654][ T1] Bluetooth: HCI socket layer initialized [ 5.580378][ T1] Bluetooth: L2CAP socket layer initialized [ 5.584684][ T1] Bluetooth: SCO socket layer initialized [ 5.594630][ T1] NET: Registered protocol family 8 [ 5.599819][ T1] NET: Registered protocol family 20 [ 5.604855][ T1] NetLabel: Initializing [ 5.609104][ T1] NetLabel: domain hash size = 128 [ 5.614566][ T1] NetLabel: protocols = UNLABELED CIPSOv4 CALIPSO [ 5.621721][ T1] NetLabel: unlabeled traffic allowed by default [ 5.625921][ T1] nfc: nfc_init: NFC Core ver 0.1 [ 5.634923][ T1] NET: Registered protocol family 39 [ 5.645850][ T1] clocksource: Switched to clocksource kvm-clock [ 8.432057][ T1] *** VALIDATE bpf *** [ 8.438693][ T1] VFS: Disk quotas dquot_6.6.0 [ 8.443706][ T1] VFS: Dquot-cache hash table entries: 512 (order 0, 4096 bytes) [ 8.452302][ T1] FS-Cache: Loaded [ 8.456135][ T1] *** VALIDATE ramfs *** [ 8.460506][ T1] *** VALIDATE hugetlbfs *** [ 8.466182][ T1] CacheFiles: Loaded [ 8.470475][ T1] TOMOYO: 2.6.0 [ 8.473929][ T1] Mandatory Access Control activated. [ 8.480989][ T1] AppArmor: AppArmor Filesystem Enabled [ 8.487077][ T1] pnp: PnP ACPI init [ 8.502096][ T1] pnp: PnP ACPI: found 7 devices [ 8.511810][ T1540] kworker/u4:6 (1540) used greatest stack depth: 26280 bytes left [ 8.571843][ T1] clocksource: acpi_pm: mask: 0xffffff max_cycles: 0xffffff, max_idle_ns: 2085701024 ns [ 8.581703][ T1] pci_bus 0000:00: resource 4 [io 0x0000-0x0cf7 window] [ 8.592213][ T1] pci_bus 0000:00: resource 5 [io 0x0d00-0xffff window] [ 8.599298][ T1] pci_bus 0000:00: resource 6 [mem 0x000a0000-0x000bffff window] [ 8.607083][ T1] pci_bus 0000:00: resource 7 [mem 0xc0000000-0xfebfffff window] [ 8.616123][ T1] NET: Registered protocol family 2 [ 8.623824][ T1] tcp_listen_portaddr_hash hash table entries: 4096 (order: 6, 294912 bytes, vmalloc) [ 8.634232][ T1] TCP established hash table entries: 65536 (order: 7, 524288 bytes, vmalloc) [ 8.648208][ T1] TCP bind hash table entries: 65536 (order: 10, 4194304 bytes, vmalloc) [ 8.660669][ T1] TCP: Hash tables configured (established 65536 bind 65536) [ 8.669636][ T1] UDP hash table entries: 4096 (order: 7, 655360 bytes, vmalloc) [ 8.679286][ T1] UDP-Lite hash table entries: 4096 (order: 7, 655360 bytes, vmalloc) [ 8.688811][ T1] NET: Registered protocol family 1 [ 8.695983][ T1] RPC: Registered named UNIX socket transport module. [ 8.702771][ T1] RPC: Registered udp transport module. [ 8.708413][ T1] RPC: Registered tcp transport module. [ 8.713959][ T1] RPC: Registered tcp NFSv4.1 backchannel transport module. [ 8.723496][ T1] NET: Registered protocol family 44 [ 8.728872][ T1] pci 0000:00:00.0: Limiting direct PCI/PCI transfers [ 8.735888][ T1] PCI: CLS 0 bytes, default 64 [ 8.743734][ T1] PCI-DMA: Using software bounce buffering for IO (SWIOTLB) [ 8.751252][ T1] software IO TLB: mapped [mem 0xaa800000-0xae800000] (64MB) [ 8.761896][ T1] RAPL PMU: API unit is 2^-32 Joules, 0 fixed counters, 10737418240 ms ovfl timer [ 8.773573][ T1] kvm: already loaded the other module [ 8.779234][ T1] clocksource: tsc: mask: 0xffffffffffffffff max_cycles: 0x212735223b2, max_idle_ns: 440795277976 ns [ 8.790250][ T1] clocksource: Switched to clocksource tsc [ 8.796356][ T1] mce: Machine check injector initialized [ 8.806258][ T1] check: Scanning for low memory corruption every 60 seconds [ 8.921696][ T1] Initialise system trusted keyrings [ 8.931409][ T1] workingset: timestamp_bits=40 max_order=21 bucket_order=0 [ 8.940793][ T1] zbud: loaded [ 8.948520][ T1] DLM installed [ 8.954157][ T1] squashfs: version 4.0 (2009/01/31) Phillip Lougher [ 8.963339][ T1] FS-Cache: Netfs 'nfs' registered for caching [ 8.970710][ T1] *** VALIDATE nfs *** [ 8.975119][ T1] *** VALIDATE nfs *** [ 8.979310][ T1] NFS: Registering the id_resolver key type [ 8.985320][ T1] Key type id_resolver registered [ 8.990352][ T1] Key type id_legacy registered [ 8.995320][ T1] nfs4filelayout_init: NFSv4 File Layout Driver Registering... [ 9.002976][ T1] Installing knfsd (copyright (C) 1996 okir@monad.swb.de). [ 9.014647][ T1] FS-Cache: Netfs 'cifs' registered for caching [ 9.022125][ T1] Key type cifs.spnego registered [ 9.027423][ T1] Key type cifs.idmap registered [ 9.032351][ T1] ntfs: driver 2.1.32 [Flags: R/W]. [ 9.039470][ T1] fuse: init (API version 7.31) [ 9.044453][ T1] *** VALIDATE fuse *** [ 9.048742][ T1] *** VALIDATE fuse *** [ 9.055958][ T1] JFS: nTxBlock = 8192, nTxLock = 65536 [ 9.071793][ T1] SGI XFS with ACLs, security attributes, realtime, quota, no debug enabled [ 9.084077][ T1] *** VALIDATE xfs *** [ 9.088428][ T1] 9p: Installing v9fs 9p2000 file system support [ 9.095133][ T1] FS-Cache: Netfs '9p' registered for caching [ 9.101857][ T1] ocfs2: Registered cluster interface o2cb [ 9.108156][ T1] ocfs2: Registered cluster interface user [ 9.114401][ T1] OCFS2 User DLM kernel interface loaded [ 9.128061][ T1] *** VALIDATE gfs2 *** [ 9.133138][ T1] gfs2: GFS2 installed [ 9.140003][ T1] FS-Cache: Netfs 'ceph' registered for caching [ 9.146402][ T1] ceph: loaded (mds proto 32) [ 9.158057][ T1] NET: Registered protocol family 38 [ 9.164806][ T1] async_tx: api initialized (async) [ 9.170037][ T1] Key type asymmetric registered [ 9.175087][ T1] Asymmetric key parser 'x509' registered [ 9.180881][ T1] Asymmetric key parser 'pkcs8' registered [ 9.186814][ T1] Key type pkcs7_test registered [ 9.191737][ T1] Asymmetric key parser 'tpm_parser' registered [ 9.198174][ T1] Block layer SCSI generic (bsg) driver version 0.4 loaded (major 243) [ 9.206929][ T1] io scheduler mq-deadline registered [ 9.212304][ T1] io scheduler kyber registered [ 9.217518][ T1] io scheduler bfq registered [ 9.226363][ T1] hgafb: HGA card not detected. [ 9.231304][ T1] hgafb: probe of hgafb.0 failed with error -22 [ 9.240274][ T1] usbcore: registered new interface driver udlfb [ 9.248000][ T1] uvesafb: failed to execute /sbin/v86d [ 9.253558][ T1] uvesafb: make sure that the v86d helper is installed and executable [ 9.262009][ T1] uvesafb: Getting VBE info block failed (eax=0x4f00, err=-2) [ 9.269578][ T1] uvesafb: vbe_init() failed with -22 [ 9.275037][ T1] uvesafb: probe of uvesafb.0 failed with error -22 [ 9.283048][ T1] vga16fb: mapped to 0x00000000fed3747d [ 9.355906][ T1] Console: switching to colour frame buffer device 80x30 [ 9.684384][ T1] fb0: VGA16 VGA frame buffer device [ 9.691530][ T1] input: Power Button as /devices/LNXSYSTM:00/LNXPWRBN:00/input/input0 [ 9.715549][ T1] ACPI: Power Button [PWRF] [ 9.720930][ T1] input: Sleep Button as /devices/LNXSYSTM:00/LNXSLPBN:00/input/input1 [ 9.729823][ T1] ACPI: Sleep Button [SLPF] [ 9.749745][ T1] ioatdma: Intel(R) QuickData Technology Driver 5.00 [ 9.767025][ T1] PCI Interrupt Link [LNKC] enabled at IRQ 11 [ 9.773397][ T1] virtio-pci 0000:00:03.0: virtio_pci: leaving for legacy driver [ 9.793818][ T1] PCI Interrupt Link [LNKD] enabled at IRQ 10 [ 9.800068][ T1] virtio-pci 0000:00:04.0: virtio_pci: leaving for legacy driver [ 9.822563][ T1] PCI Interrupt Link [LNKA] enabled at IRQ 10 [ 9.829011][ T1] virtio-pci 0000:00:05.0: virtio_pci: leaving for legacy driver [ 10.102310][ T1] HDLC line discipline maxframe=4096 [ 10.108639][ T1] N_HDLC line discipline registered. [ 10.114005][ T1] Serial: 8250/16550 driver, 4 ports, IRQ sharing enabled [ 10.122098][ T1] 00:03: ttyS0 at I/O 0x3f8 (irq = 4, base_baud = 115200) is a 16550A [ 10.134657][ T1] 00:04: ttyS1 at I/O 0x2f8 (irq = 3, base_baud = 115200) is a 16550A [ 10.147872][ T1] 00:05: ttyS2 at I/O 0x3e8 (irq = 6, base_baud = 115200) is a 16550A [ 10.159541][ T1] 00:06: ttyS3 at I/O 0x2e8 (irq = 7, base_baud = 115200) is a 16550A [ 10.172521][ T1] Cyclades driver 2.6 [ 10.177123][ T1] Initializing Nozomi driver 2.1d [ 10.182933][ T1] RocketPort device driver module, version 2.09, 12-June-2003 [ 10.190814][ T1] No rocketport ports found; unloading driver [ 10.200052][ T1] Non-volatile memory driver v1.3 [ 10.205710][ T1] Linux agpgart interface v0.103 [ 10.218846][ T1] [drm] Initialized vgem 1.0.0 20120112 for vgem on minor 0 [ 10.226851][ T1] [drm] Supports vblank timestamp caching Rev 2 (21.10.2013). [ 10.234312][ T1] [drm] Driver supports precise vblank timestamp query. [ 10.244231][ T1] [drm] Initialized vkms 1.0.0 20180514 for vkms on minor 1 [ 10.251805][ T1] usbcore: registered new interface driver udl [ 10.300217][ T1] brd: module loaded [ 10.334045][ T1] loop: module loaded [ 10.510566][ T1] zram: Added device: zram0 [ 10.541377][ T1] null_blk: module loaded [ 10.552771][ T1] nfcsim 0.2 initialized [ 10.559664][ T1] Loading iSCSI transport class v2.0-870. [ 10.596366][ T1] scsi host0: Virtio SCSI HBA [ 10.638650][ T1] st: Version 20160209, fixed bufsize 32768, s/g segs 256 [ 10.642332][ T28] scsi 0:0:1:0: Direct-Access Google PersistentDisk 1 PQ: 0 ANSI: 6 [ 10.712900][ T1] slram: not enough parameters. [ 10.731688][ T1] ftl_cs: FTL header not found. [ 10.745111][ T1] Ethernet Channel Bonding Driver: v3.7.1 (April 27, 2011) [ 10.794780][ T1] wireguard: WireGuard 1.0.0 loaded. See www.wireguard.com for information. [ 10.804180][ T1] wireguard: Copyright (C) 2015-2019 Jason A. Donenfeld . All Rights Reserved. [ 10.815209][ T1] eql: Equalizer2002: Simon Janes (simon@ncm.com) and David S. Miller (davem@redhat.com) [ 10.831476][ T1] MACsec IEEE 802.1AE [ 10.836667][ T1] tun: Universal TUN/TAP device driver, 1.6 [ 10.879314][ T1] vcan: Virtual CAN interface driver [ 10.884825][ T1] vxcan: Virtual CAN Tunnel driver [ 10.890243][ T1] slcan: serial line CAN interface driver [ 10.897124][ T1] slcan: 10 dynamic interface channels. [ 10.902917][ T1] CAN device driver interface [ 10.908063][ T1] enic: Cisco VIC Ethernet NIC Driver, ver 2.3.0.53 [ 10.915525][ T1] e100: Intel(R) PRO/100 Network Driver, 3.5.24-k2-NAPI [ 10.922843][ T1] e100: Copyright(c) 1999-2006 Intel Corporation [ 10.929834][ T1] e1000: Intel(R) PRO/1000 Network Driver - version 7.3.21-k8-NAPI [ 10.938188][ T1] e1000: Copyright (c) 1999-2006 Intel Corporation. [ 10.945484][ T1] e1000e: Intel(R) PRO/1000 Network Driver - 3.2.6-k [ 10.952444][ T1] e1000e: Copyright(c) 1999 - 2015 Intel Corporation. [ 10.969066][ C1] random: fast init done [ 10.971546][ T1] mkiss: AX.25 Multikiss, Hans Albas PE1AYX [ 10.981413][ T1] AX.25: 6pack driver, Revision: 0.3.0 [ 10.987596][ T1] AX.25: bpqether driver version 004 [ 10.989604][ T94] sd 0:0:1:0: [sda] 4194304 512-byte logical blocks: (2.15 GB/2.00 GiB) [ 10.992891][ T1] PPP generic driver version 2.4.2 [ 10.993629][ T1] PPP BSD Compression module registered [ 11.005193][ T28] sd 0:0:1:0: Attached scsi generic sg0 type 0 [ 11.007853][ T1] PPP Deflate Compression module registered [ 11.016671][ T94] sd 0:0:1:0: [sda] 4096-byte physical blocks [ 11.019819][ T1] PPP MPPE Compression module registered [ 11.025717][ T94] sd 0:0:1:0: [sda] Write Protect is off [ 11.036276][ T1] NET: Registered protocol family 24 [ 11.044300][ T1] PPTP driver version 0.8.5 [ 11.050495][ T94] sd 0:0:1:0: [sda] Write cache: enabled, read cache: enabled, doesn't support DPO or FUA [ 11.055532][ T1] SLIP: version 0.8.4-NET3.019-NEWTTY (dynamic channels, max=256) (6 bit encapsulation enabled). [ 11.079778][ T1] CSLIP: code copyright 1989 Regents of the University of California. [ 11.089671][ T1] SLIP linefill/keepalive option. [ 11.095756][ T1] hdlc: HDLC support module revision 1.22 [ 11.103229][ T1] x25_asy: X.25 async: version 0.00 ALPHA (dynamic channels, max=256) [ 11.111595][ T1] DLCI driver v0.35, 4 Jan 1997, mike.mclagan@linux.org. [ 11.118649][ T1] LAPB Ethernet driver version 0.02 [ 11.124086][ T1] usbcore: registered new interface driver rndis_wlan [ 11.131304][ T1] mac80211_hwsim: initializing netlink [ 11.153565][ T1] fakelb driver is marked as deprecated, please use mac802154_hwsim! [ 11.192977][ T1] ieee802154fakelb ieee802154fakelb: added 2 fake ieee802154 hardware devices [ 11.227086][ T1] mac802154_hwsim mac802154_hwsim: Added 2 mac802154 hwsim hardware radios [ 11.236033][ T1] VMware vmxnet3 virtual NIC driver - version 1.4.17.0-k-NAPI [ 11.243942][ T1] pegasus: v0.9.3 (2013/04/25), Pegasus/Pegasus II USB Ethernet driver [ 11.253091][ T1] usbcore: registered new interface driver pegasus [ 11.259942][ T1] usbcore: registered new interface driver rtl8150 [ 11.267119][ T1] usbcore: registered new interface driver r8152 [ 11.273782][ T1] usbcore: registered new interface driver asix [ 11.280358][ T1] usbcore: registered new interface driver ax88179_178a [ 11.287818][ T1] usbcore: registered new interface driver cdc_ether [ 11.294891][ T1] usbcore: registered new interface driver dm9601 [ 11.301791][ T1] usbcore: registered new interface driver smsc75xx [ 11.308811][ T1] usbcore: registered new interface driver smsc95xx [ 11.315738][ T1] usbcore: registered new interface driver net1080 [ 11.322511][ T1] usbcore: registered new interface driver rndis_host [ 11.329596][ T1] usbcore: registered new interface driver cdc_subset [ 11.337108][ T1] usbcore: registered new interface driver zaurus [ 11.343836][ T1] usbcore: registered new interface driver MOSCHIP usb-ethernet driver [ 11.352562][ T1] usbcore: registered new interface driver cdc_ncm [ 11.359404][ T1] usbcore: registered new interface driver cdc_mbim [ 11.380928][ T1] VFIO - User Level meta-driver version: 0.3 [ 11.391726][ T1] aoe: AoE v85 initialised. [ 11.400303][ T1] ehci_hcd: USB 2.0 'Enhanced' Host Controller (EHCI) Driver [ 11.408074][ T1] ehci-pci: EHCI PCI platform driver [ 11.413746][ T1] ohci_hcd: USB 1.1 'Open' Host Controller (OHCI) Driver [ 11.420947][ T1] ohci-pci: OHCI PCI platform driver [ 11.426903][ T1] uhci_hcd: USB Universal Host Controller Interface driver [ 11.435167][ T1] usbcore: registered new interface driver cdc_acm [ 11.441836][ T1] cdc_acm: USB Abstract Control Model driver for USB modems and ISDN adapters [ 11.450946][ T1] usbcore: registered new interface driver usblp [ 11.457497][ T1] usbcore: registered new interface driver cdc_wdm [ 11.464168][ T1] usbcore: registered new interface driver uas [ 11.470611][ T1] usbcore: registered new interface driver usb-storage [ 11.478012][ T1] usbcore: registered new interface driver ums-realtek [ 11.485342][ T1] usbcore: registered new interface driver usbserial_generic [ 11.493079][ T1] usbserial: USB Serial support registered for generic [ 11.500179][ T1] usbcore: registered new interface driver ch341 [ 11.506641][ T1] usbserial: USB Serial support registered for ch341-uart [ 11.514960][ T1] usbcore: registered new interface driver cp210x [ 11.521646][ T1] usbserial: USB Serial support registered for cp210x [ 11.528606][ T1] usbcore: registered new interface driver ftdi_sio [ 11.535416][ T1] usbserial: USB Serial support registered for FTDI USB Serial Device [ 11.543737][ T1] usbcore: registered new interface driver keyspan [ 11.550383][ T1] usbserial: USB Serial support registered for Keyspan - (without firmware) [ 11.559214][ T1] usbserial: USB Serial support registered for Keyspan 1 port adapter [ 11.567505][ T1] usbserial: USB Serial support registered for Keyspan 2 port adapter [ 11.575841][ T1] usbserial: USB Serial support registered for Keyspan 4 port adapter [ 11.584364][ T1] usbcore: registered new interface driver option [ 11.591036][ T1] usbserial: USB Serial support registered for GSM modem (1-port) [ 11.599194][ T1] usbcore: registered new interface driver oti6858 [ 11.606046][ T1] usbserial: USB Serial support registered for oti6858 [ 11.613087][ T1] usbcore: registered new interface driver pl2303 [ 11.619819][ T1] usbserial: USB Serial support registered for pl2303 [ 11.626806][ T1] usbcore: registered new interface driver qcserial [ 11.633570][ T1] usbserial: USB Serial support registered for Qualcomm USB modem [ 11.641631][ T1] usbcore: registered new interface driver sierra [ 11.648239][ T1] usbserial: USB Serial support registered for Sierra USB modem [ 11.656200][ T1] usbcore: registered new interface driver usb_serial_simple [ 11.663745][ T1] usbserial: USB Serial support registered for carelink [ 11.670854][ T1] usbserial: USB Serial support registered for zio [ 11.677507][ T1] usbserial: USB Serial support registered for funsoft [ 11.684814][ T1] usbserial: USB Serial support registered for flashloader [ 11.692146][ T1] usbserial: USB Serial support registered for google [ 11.699175][ T1] usbserial: USB Serial support registered for libtransistor [ 11.706725][ T1] usbserial: USB Serial support registered for vivopay [ 11.713738][ T1] usbserial: USB Serial support registered for moto_modem [ 11.721039][ T1] usbserial: USB Serial support registered for motorola_tetra [ 11.728778][ T1] usbserial: USB Serial support registered for novatel_gps [ 11.736365][ T1] usbserial: USB Serial support registered for hp4x [ 11.743105][ T1] usbserial: USB Serial support registered for suunto [ 11.750069][ T1] usbserial: USB Serial support registered for siemens_mpi [ 11.759465][ T1] dummy_hcd dummy_hcd.0: USB Host+Gadget Emulator, driver 02 May 2005 [ 11.767730][ T1] dummy_hcd dummy_hcd.0: Dummy host controller [ 11.775042][ T1] dummy_hcd dummy_hcd.0: new USB bus registered, assigned bus number 1 [ 11.784269][ T1] usb usb1: New USB device found, idVendor=1d6b, idProduct=0002, bcdDevice= 5.05 [ 11.793478][ T1] usb usb1: New USB device strings: Mfr=3, Product=2, SerialNumber=1 [ 11.801791][ T1] usb usb1: Product: Dummy host controller [ 11.807639][ T1] usb usb1: Manufacturer: Linux 5.5.0-rc7-next-20200121-syzkaller dummy_hcd [ 11.816434][ T1] usb usb1: SerialNumber: dummy_hcd.0 [ 11.824287][ T1] hub 1-0:1.0: USB hub found [ 11.829755][ T1] hub 1-0:1.0: 1 port detected [ 11.837489][ T1] ================================================================== [ 11.844606][ T1] BUG: KASAN: slab-out-of-bounds in post_usb_notification+0xe5/0x170 [ 11.844606][ T1] Read of size 21 at addr ffff8880a7e2bc80 by task swapper/0/1 [ 11.844606][ T1] [ 11.844606][ T1] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 5.5.0-rc7-next-20200121-syzkaller #0 [ 11.844606][ T1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 11.844606][ T1] Call Trace: [ 11.844606][ T1] dump_stack+0x197/0x210 [ 11.844606][ T1] ? post_usb_notification+0xe5/0x170 [ 11.844606][ T1] print_address_description.constprop.0.cold+0xd4/0x30b [ 11.844606][ T1] ? post_usb_notification+0xe5/0x170 [ 11.844606][ T1] ? post_usb_notification+0xe5/0x170 [ 11.844606][ T1] __kasan_report.cold+0x1b/0x32 [ 11.844606][ T1] ? post_usb_notification+0xe5/0x170 [ 11.844606][ T1] kasan_report+0x12/0x20 [ 11.844606][ T1] check_memory_region+0x134/0x1a0 [ 11.844606][ T1] memcpy+0x24/0x50 [ 11.844606][ T1] post_usb_notification+0xe5/0x170 [ 11.844606][ T1] ? get_urb32+0x3d0/0x3d0 [ 11.844606][ T1] ? lock_acquire+0x190/0x410 [ 11.844606][ T1] ? blocking_notifier_call_chain+0x7d/0xb0 [ 11.844606][ T1] usbdev_notify+0x2c0/0x4a0 [ 11.844606][ T1] ? __kasan_check_write+0x14/0x20 [ 11.844606][ T1] ? down_read+0x109/0x440 [ 11.844606][ T1] ? usb_set_configuration+0xe85/0x16b0 [ 11.844606][ T1] notifier_call_chain+0xc2/0x230 [ 11.844606][ T1] blocking_notifier_call_chain+0x94/0xb0 [ 11.844606][ T1] usb_notify_add_device+0x22/0x30 [ 11.844606][ T1] generic_probe+0x8c/0xde [ 11.844606][ T1] usb_probe_device+0xa0/0xf0 [ 11.844606][ T1] ? usb_suspend+0x660/0x660 [ 11.844606][ T1] really_probe+0x291/0x700 [ 11.844606][ T1] driver_probe_device+0x110/0x220 [ 11.844606][ T1] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 11.844606][ T1] __device_attach_driver+0x1c9/0x230 [ 11.844606][ T1] bus_for_each_drv+0x172/0x1f0 [ 11.844606][ T1] ? driver_allows_async_probing+0x180/0x180 [ 11.844606][ T1] ? bus_rescan_devices+0x30/0x30 [ 11.844606][ T1] ? _raw_spin_unlock_irqrestore+0x9f/0xe0 [ 11.844606][ T1] __device_attach+0x237/0x390 [ 11.844606][ T1] ? device_bind_driver+0xd0/0xd0 [ 11.844606][ T1] ? __kasan_check_write+0x14/0x20 [ 11.844606][ T1] device_initial_probe+0x1b/0x20 [ 11.844606][ T1] bus_probe_device+0x1f1/0x2a0 [ 11.844606][ T1] device_add+0x14fe/0x1d00 [ 11.844606][ T1] ? usb_match_device+0xdb/0x560 [ 11.844606][ T1] ? uevent_show+0x370/0x370 [ 11.844606][ T1] usb_new_device.cold+0x74c/0x1063 [ 11.844606][ T1] ? kfree+0x226/0x2c0 [ 11.844606][ T1] ? hub_disconnect+0x450/0x450 [ 11.844606][ T1] ? usb_get_device_descriptor+0xba/0xf0 [ 11.844606][ T1] usb_add_hcd.cold+0x10f8/0x1496 [ 11.844606][ T1] dummy_hcd_probe+0x1ae/0x32c [ 11.844606][ T1] ? platform_drv_remove+0xa0/0xa0 [ 11.844606][ T1] ? dummy_enable.cold+0x4b/0x4b [ 11.844606][ T1] platform_drv_probe+0x8d/0x140 [ 11.844606][ T1] ? platform_drv_remove+0xa0/0xa0 [ 11.844606][ T1] really_probe+0x291/0x700 [ 11.844606][ T1] driver_probe_device+0x110/0x220 [ 11.844606][ T1] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 11.844606][ T1] __device_attach_driver+0x1c9/0x230 [ 11.844606][ T1] bus_for_each_drv+0x172/0x1f0 [ 11.844606][ T1] ? driver_allows_async_probing+0x180/0x180 [ 11.844606][ T1] ? bus_rescan_devices+0x30/0x30 [ 11.844606][ T1] ? _raw_spin_unlock_irqrestore+0x9f/0xe0 [ 11.844606][ T1] __device_attach+0x237/0x390 [ 11.844606][ T1] ? device_bind_driver+0xd0/0xd0 [ 11.844606][ T1] ? __kasan_check_write+0x14/0x20 [ 11.844606][ T1] device_initial_probe+0x1b/0x20 [ 11.844606][ T1] bus_probe_device+0x1f1/0x2a0 [ 11.844606][ T1] device_add+0x14fe/0x1d00 [ 11.844606][ T1] ? dev_set_name+0xbb/0xf0 [ 11.844606][ T1] ? uevent_show+0x370/0x370 [ 11.844606][ T1] platform_device_add+0x365/0x6e0 [ 11.844606][ T1] ? kfree+0x28b/0x2c0 [ 11.844606][ T1] init+0x534/0xab8 [ 11.844606][ T1] ? usb_udc_init+0x9c/0x9c [ 11.844606][ T1] ? lock_downgrade+0x920/0x920 [ 11.844606][ T1] ? lock_downgrade+0x920/0x920 [ 11.844606][ T1] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 11.844606][ T1] ? debug_smp_processor_id+0x33/0x18a [ 11.844606][ T1] ? rcu_lockdep_current_cpu_online+0xe3/0x130 [ 11.844606][ T1] ? usb_udc_init+0x9c/0x9c [ 11.844606][ T1] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 11.844606][ T1] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 11.844606][ T1] ? configfs_register_subsystem+0x208/0x390 [ 11.844606][ T1] ? usb_udc_init+0x9c/0x9c [ 11.844606][ T1] do_one_initcall+0x120/0x820 [ 11.844606][ T1] ? boot_config_checksum+0xa0/0xa0 [ 11.844606][ T1] ? swapgs_restore_regs_and_return_to_usermode+0x3b/0x40 [ 11.844606][ T1] ? kernel_init_freeable+0x4c9/0x5d0 [ 11.844606][ T1] kernel_init_freeable+0x522/0x5d0 [ 11.844606][ T1] ? rest_init+0x371/0x371 [ 11.844606][ T1] kernel_init+0x12/0x1bf [ 11.844606][ T1] ret_from_fork+0x24/0x30 [ 11.844606][ T1] [ 11.844606][ T1] Allocated by task 1: [ 11.844606][ T1] save_stack+0x23/0x90 [ 11.844606][ T1] __kasan_kmalloc.constprop.0+0xcf/0xe0 [ 11.844606][ T1] kasan_kmalloc+0x9/0x10 [ 11.844606][ T1] __kmalloc_track_caller+0x15f/0x760 [ 11.844606][ T1] kvasprintf+0xc8/0x170 [ 11.844606][ T1] kvasprintf_const+0x65/0x190 [ 11.844606][ T1] kobject_set_name_vargs+0x5b/0x150 [ 11.844606][ T1] dev_set_name+0xbb/0xf0 [ 11.844606][ T1] usb_alloc_dev+0xcc4/0xf86 [ 11.844606][ T1] usb_add_hcd.cold+0x3c1/0x1496 [ 11.844606][ T1] dummy_hcd_probe+0x1ae/0x32c [ 11.844606][ T1] platform_drv_probe+0x8d/0x140 [ 11.844606][ T1] really_probe+0x291/0x700 [ 11.844606][ T1] driver_probe_device+0x110/0x220 [ 11.844606][ T1] __device_attach_driver+0x1c9/0x230 [ 11.844606][ T1] bus_for_each_drv+0x172/0x1f0 [ 11.844606][ T1] __device_attach+0x237/0x390 [ 11.844606][ T1] device_initial_probe+0x1b/0x20 [ 11.844606][ T1] bus_probe_device+0x1f1/0x2a0 [ 11.844606][ T1] device_add+0x14fe/0x1d00 [ 11.844606][ T1] platform_device_add+0x365/0x6e0 [ 11.844606][ T1] init+0x534/0xab8 [ 11.844606][ T1] do_one_initcall+0x120/0x820 [ 11.844606][ T1] kernel_init_freeable+0x522/0x5d0 [ 11.844606][ T1] kernel_init+0x12/0x1bf [ 11.844606][ T1] ret_from_fork+0x24/0x30 [ 11.844606][ T1] [ 11.844606][ T1] Freed by task 0: [ 11.844606][ T1] (stack is not available) [ 11.844606][ T1] [ 11.844606][ T1] The buggy address belongs to the object at ffff8880a7e2bc80 [ 11.844606][ T1] which belongs to the cache kmalloc-32 of size 32 [ 11.844606][ T1] The buggy address is located 0 bytes inside of [ 11.844606][ T1] 32-byte region [ffff8880a7e2bc80, ffff8880a7e2bca0) [ 11.844606][ T1] The buggy address belongs to the page: [ 11.844606][ T1] page:ffffea00029f8ac0 refcount:1 mapcount:0 mapping:ffff8880aa4001c0 index:0xffff8880a7e2bfc1 [ 11.844606][ T1] flags: 0xfffe0000000200(slab) [ 11.844606][ T1] raw: 00fffe0000000200 ffffea0002a5ccc8 ffff8880aa401248 ffff8880aa4001c0 [ 11.844606][ T1] raw: ffff8880a7e2bfc1 ffff8880a7e2b000 000000010000003f 0000000000000000 [ 11.844606][ T1] page dumped because: kasan: bad access detected [ 11.844606][ T1] [ 11.844606][ T1] Memory state around the buggy address: [ 11.844606][ T1] ffff8880a7e2bb80: fb fb fb fb fc fc fc fc 00 00 00 01 fc fc fc fc [ 11.844606][ T1] ffff8880a7e2bc00: fb fb fb fb fc fc fc fc fb fb fb fb fc fc fc fc [ 11.844606][ T1] >ffff8880a7e2bc80: 05 fc fc fc fc fc fc fc 00 fc fc fc fc fc fc fc [ 11.844606][ T1] ^ [ 11.844606][ T1] ffff8880a7e2bd00: 00 04 fc fc fc fc fc fc fb fb fb fb fc fc fc fc [ 11.844606][ T1] ffff8880a7e2bd80: 00 04 fc fc fc fc fc fc fb fb fb fb fc fc fc fc [ 11.844606][ T1] ================================================================== [ 11.844606][ T1] Disabling lock debugging due to kernel taint [ 12.639053][ T1] Kernel panic - not syncing: panic_on_warn set ... [ 12.645757][ T1] CPU: 0 PID: 1 Comm: swapper/0 Tainted: G B 5.5.0-rc7-next-20200121-syzkaller #0 [ 12.654703][ T1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 12.660355][ T94] sda: sda1 [ 12.654703][ T1] Call Trace: [ 12.654703][ T1] dump_stack+0x197/0x210 [ 12.654703][ T1] panic+0x2e3/0x75c [ 12.654703][ T1] ? add_taint.cold+0x16/0x16 [ 12.654703][ T1] ? post_usb_notification+0xe5/0x170 [ 12.675233][ T94] sd 0:0:1:0: [sda] Attached SCSI disk [ 12.674428][ T1] ? preempt_schedule+0x4b/0x60 [ 12.704601][ T1] ? ___preempt_schedule+0x16/0x18 [ 12.704601][ T1] ? trace_hardirqs_on+0x5e/0x240 [ 12.714607][ T1] ? post_usb_notification+0xe5/0x170 [ 12.714607][ T1] end_report+0x47/0x4f [ 12.724597][ T1] ? post_usb_notification+0xe5/0x170 [ 12.724597][ T1] __kasan_report.cold+0xe/0x32 [ 12.734639][ T1] ? post_usb_notification+0xe5/0x170 [ 12.734639][ T1] kasan_report+0x12/0x20 [ 12.744595][ T1] check_memory_region+0x134/0x1a0 [ 12.744595][ T1] memcpy+0x24/0x50 [ 12.744595][ T1] post_usb_notification+0xe5/0x170 [ 12.754628][ T1] ? get_urb32+0x3d0/0x3d0 [ 12.754628][ T1] ? lock_acquire+0x190/0x410 [ 12.764598][ T1] ? blocking_notifier_call_chain+0x7d/0xb0 [ 12.774637][ T1] usbdev_notify+0x2c0/0x4a0 [ 12.774637][ T1] ? __kasan_check_write+0x14/0x20 [ 12.784593][ T1] ? down_read+0x109/0x440 [ 12.784593][ T1] ? usb_set_configuration+0xe85/0x16b0 [ 12.794698][ T1] notifier_call_chain+0xc2/0x230 [ 12.794698][ T1] blocking_notifier_call_chain+0x94/0xb0 [ 12.804613][ T1] usb_notify_add_device+0x22/0x30 [ 12.804613][ T1] generic_probe+0x8c/0xde [ 12.814652][ T1] usb_probe_device+0xa0/0xf0 [ 12.814652][ T1] ? usb_suspend+0x660/0x660 [ 12.814652][ T1] really_probe+0x291/0x700 [ 12.824642][ T1] driver_probe_device+0x110/0x220 [ 12.824642][ T1] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 12.834673][ T1] __device_attach_driver+0x1c9/0x230 [ 12.844598][ T1] bus_for_each_drv+0x172/0x1f0 [ 12.844598][ T1] ? driver_allows_async_probing+0x180/0x180 [ 12.854648][ T1] ? bus_rescan_devices+0x30/0x30 [ 12.854648][ T1] ? _raw_spin_unlock_irqrestore+0x9f/0xe0 [ 12.864650][ T1] __device_attach+0x237/0x390 [ 12.864650][ T1] ? device_bind_driver+0xd0/0xd0 [ 12.874637][ T1] ? __kasan_check_write+0x14/0x20 [ 12.874637][ T1] device_initial_probe+0x1b/0x20 [ 12.884644][ T1] bus_probe_device+0x1f1/0x2a0 [ 12.884644][ T1] device_add+0x14fe/0x1d00 [ 12.894663][ T1] ? usb_match_device+0xdb/0x560 [ 12.894663][ T1] ? uevent_show+0x370/0x370 [ 12.904602][ T1] usb_new_device.cold+0x74c/0x1063 [ 12.904602][ T1] ? kfree+0x226/0x2c0 [ 12.914643][ T1] ? hub_disconnect+0x450/0x450 [ 12.914643][ T1] ? usb_get_device_descriptor+0xba/0xf0 [ 12.924599][ T1] usb_add_hcd.cold+0x10f8/0x1496 [ 12.924599][ T1] dummy_hcd_probe+0x1ae/0x32c [ 12.934634][ T1] ? platform_drv_remove+0xa0/0xa0 [ 12.934634][ T1] ? dummy_enable.cold+0x4b/0x4b [ 12.944592][ T1] platform_drv_probe+0x8d/0x140 [ 12.944592][ T1] ? platform_drv_remove+0xa0/0xa0 [ 12.954684][ T1] really_probe+0x291/0x700 [ 12.954684][ T1] driver_probe_device+0x110/0x220 [ 12.964633][ T1] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 12.964633][ T1] __device_attach_driver+0x1c9/0x230 [ 12.974692][ T1] bus_for_each_drv+0x172/0x1f0 [ 12.974692][ T1] ? driver_allows_async_probing+0x180/0x180 [ 12.984646][ T1] ? bus_rescan_devices+0x30/0x30 [ 12.984646][ T1] ? _raw_spin_unlock_irqrestore+0x9f/0xe0 [ 12.994661][ T1] __device_attach+0x237/0x390 [ 13.004606][ T1] ? device_bind_driver+0xd0/0xd0 [ 13.004606][ T1] ? __kasan_check_write+0x14/0x20 [ 13.014694][ T1] device_initial_probe+0x1b/0x20 [ 13.014694][ T1] bus_probe_device+0x1f1/0x2a0 [ 13.024641][ T1] device_add+0x14fe/0x1d00 [ 13.024641][ T1] ? dev_set_name+0xbb/0xf0 [ 13.024641][ T1] ? uevent_show+0x370/0x370 [ 13.034654][ T1] platform_device_add+0x365/0x6e0 [ 13.034654][ T1] ? kfree+0x28b/0x2c0 [ 13.044639][ T1] init+0x534/0xab8 [ 13.044639][ T1] ? usb_udc_init+0x9c/0x9c [ 13.054658][ T1] ? lock_downgrade+0x920/0x920 [ 13.054658][ T1] ? lock_downgrade+0x920/0x920 [ 13.064630][ T1] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 13.064630][ T1] ? debug_smp_processor_id+0x33/0x18a [ 13.074728][ T1] ? rcu_lockdep_current_cpu_online+0xe3/0x130 [ 13.074728][ T1] ? usb_udc_init+0x9c/0x9c [ 13.084635][ T1] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 13.084635][ T1] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 13.094650][ T1] ? configfs_register_subsystem+0x208/0x390 [ 13.104594][ T1] ? usb_udc_init+0x9c/0x9c [ 13.104594][ T1] do_one_initcall+0x120/0x820 [ 13.114634][ T1] ? boot_config_checksum+0xa0/0xa0 [ 13.114634][ T1] ? swapgs_restore_regs_and_return_to_usermode+0x3b/0x40 [ 13.124599][ T1] ? kernel_init_freeable+0x4c9/0x5d0 [ 13.124599][ T1] kernel_init_freeable+0x522/0x5d0 [ 13.134631][ T1] ? rest_init+0x371/0x371 [ 13.134631][ T1] kernel_init+0x12/0x1bf [ 13.144592][ T1] ret_from_fork+0x24/0x30 [ 13.144592][ T1] Kernel Offset: disabled [ 13.144592][ T1] Rebooting in 86400 seconds..