[ 0.000000][ T0] Linux version 5.10.0-rc7-next-20201214-syzkaller (syzkaller@syzkaller) (gcc (GCC) 10.1.0-syz 20200507, GNU ld (GNU Binutils for Ubuntu) 2.26.1) #0 SMP PREEMPT now [ 0.000000][ T0] Command line: BOOT_IMAGE=/vmlinuz root=/dev/sda1 console=ttyS0 earlyprintk=serial vsyscall=native oops=panic panic_on_warn=1 nmi_watchdog=panic panic=86400 net.ifnames=0 sysctl.kernel.hung_task_all_cpu_backtrace=1 [ 0.000000][ T0] KERNEL supported cpus: [ 0.000000][ T0] Intel GenuineIntel [ 0.000000][ T0] AMD AuthenticAMD [ 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 0x0000000100000000-0x000000023fffffff] usable [ 0.000000][ T0] printk: bootconsole [earlyser0] enabled [ 0.000000][ T0] ERROR: earlyprintk= earlyser already used [ 0.000000][ T0] ERROR: earlyprintk= earlyser already used [ 0.000000][ T0] ERROR: earlyprintk= earlyser already used [ 0.000000][ T0] nopcid: PCID feature disabled [ 0.000000][ T0] Malformed early option 'vsyscall' [ 0.000000][ T0] Malformed early option 'vsyscall' [ 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 [ 0.000000][ T0] kvm-clock: cpu 0, msr ede4001, primary cpu clock [ 0.000000][ T0] kvm-clock: using sched offset of 3506957137 cycles [ 0.001722][ T0] clocksource: kvm-clock: mask: 0xffffffffffffffff max_cycles: 0x1cd42e4dffb, max_idle_ns: 881590591483 ns [ 0.007683][ T0] tsc: Detected 2300.000 MHz processor [ 0.013024][ T0] last_pfn = 0x240000 max_arch_pfn = 0x400000000 [ 0.017116][ T0] x86/PAT: Configuration [0-7]: WB WC UC- UC WB WP UC- WT [ 0.018990][ T0] last_pfn = 0xbfffd max_arch_pfn = 0x400000000 [ 0.026913][ T0] found SMP MP-table at [mem 0x000f25a0-0x000f25af] [ 0.028222][ T0] Using GB pages for direct mapping [ 0.030998][ T0] ACPI: Early table checksum verification disabled [ 0.032257][ T0] ACPI: RSDP 0x00000000000F2320 000014 (v00 Google) [ 0.033693][ T0] ACPI: RSDT 0x00000000BFFFFFA0 000038 (v01 Google GOOGRSDT 00000001 GOOG 00000001) [ 0.035703][ T0] ACPI: FACP 0x00000000BFFFF340 0000F4 (v02 Google GOOGFACP 00000001 GOOG 00000001) [ 0.037131][ T0] ACPI: DSDT 0x00000000BFFFDA80 0018BA (v01 Google GOOGDSDT 00000001 GOOG 00000001) [ 0.039003][ T0] ACPI: FACS 0x00000000BFFFDA40 000040 [ 0.039823][ T0] ACPI: FACS 0x00000000BFFFDA40 000040 [ 0.040896][ T0] ACPI: SRAT 0x00000000BFFFFE70 0000C8 (v03 Google GOOGSRAT 00000001 GOOG 00000001) [ 0.042535][ T0] ACPI: APIC 0x00000000BFFFFDC0 000076 (v05 Google GOOGAPIC 00000001 GOOG 00000001) [ 0.044270][ T0] ACPI: SSDT 0x00000000BFFFF440 000980 (v01 Google GOOGSSDT 00000001 GOOG 00000001) [ 0.046136][ T0] ACPI: WAET 0x00000000BFFFFE40 000028 (v01 Google GOOGWAET 00000001 GOOG 00000001) [ 0.049298][ T0] SRAT: PXM 0 -> APIC 0x00 -> Node 0 [ 0.050373][ T0] SRAT: PXM 0 -> APIC 0x01 -> Node 0 [ 0.051476][ T0] ACPI: SRAT: Node 0 PXM 0 [mem 0x00000000-0x0009ffff] [ 0.053299][ T0] ACPI: SRAT: Node 0 PXM 0 [mem 0x00100000-0xbfffffff] [ 0.054414][ T0] ACPI: SRAT: Node 0 PXM 0 [mem 0x100000000-0x23fffffff] [ 0.056811][ T0] NUMA: Node 0 [mem 0x00000000-0x0009ffff] + [mem 0x00100000-0xbfffffff] -> [mem 0x00000000-0xbfffffff] [ 0.058763][ T0] NUMA: Node 0 [mem 0x00000000-0xbfffffff] + [mem 0x100000000-0x23fffffff] -> [mem 0x00000000-0x23fffffff] [ 0.060760][ T0] Faking node 0 at [mem 0x0000000000000000-0x000000013fffffff] (5120MB) [ 0.062875][ T0] Faking node 1 at [mem 0x0000000140000000-0x000000023fffffff] (4096MB) [ 0.064689][ T0] NODE_DATA(0) allocated [mem 0x13fffb000-0x13fffffff] [ 0.066726][ T0] NODE_DATA(1) allocated [mem 0x23fff8000-0x23fffcfff] [ 0.126578][ T0] memblock: reserved range [0x0000000000000000-0x0000000000001000] is not in memory [ 0.129183][ T0] memblock: reserved range [0x000000000009f000-0x0000000000100000] is not in memory [ 0.130540][ T0] Zone ranges: [ 0.131061][ T0] DMA [mem 0x0000000000000000-0x0000000000ffffff] [ 0.132249][ T0] DMA32 [mem 0x0000000001000000-0x00000000ffffffff] [ 0.134268][ T0] Normal [mem 0x0000000100000000-0x000000023fffffff] [ 0.135278][ T0] Device empty [ 0.135906][ T0] Movable zone start for each node [ 0.136680][ T0] Early memory node ranges [ 0.137247][ T0] node 0: [mem 0x0000000000000000-0x00000000bfffcfff] [ 0.138274][ T0] node 0: [mem 0x0000000100000000-0x000000013fffffff] [ 0.139213][ T0] node 1: [mem 0x0000000140000000-0x000000023fffffff] [ 0.142031][ T0] Initmem setup node 0 [mem 0x0000000000000000-0x000000013fffffff] [ 0.166883][ T0] DMA32: Zeroed struct page in unavailable ranges: 3 [ 0.176838][ T0] Initmem setup node 1 [mem 0x0000000140000000-0x000000023fffffff] [ 0.678745][ T0] kasan: KernelAddressSanitizer initialized [ 0.681305][ T0] ACPI: PM-Timer IO Port: 0xb008 [ 0.682774][ T0] ACPI: LAPIC_NMI (acpi_id[0xff] dfl dfl lint[0x1]) [ 0.685243][ T0] IOAPIC[0]: apic_id 0, version 17, address 0xfec00000, GSI 0-23 [ 0.687707][ T0] ACPI: INT_SRC_OVR (bus 0 bus_irq 5 global_irq 5 high level) [ 0.690398][ T0] ACPI: INT_SRC_OVR (bus 0 bus_irq 9 global_irq 9 high level) [ 0.692071][ T0] ACPI: INT_SRC_OVR (bus 0 bus_irq 10 global_irq 10 high level) [ 0.694151][ T0] ACPI: INT_SRC_OVR (bus 0 bus_irq 11 global_irq 11 high level) [ 0.696460][ T0] Using ACPI (MADT) for SMP configuration information [ 0.698577][ T0] smpboot: Allowing 2 CPUs, 0 hotplug CPUs [ 0.700715][ T0] PM: hibernation: Registered nosave memory: [mem 0x00000000-0x00000fff] [ 0.702587][ T0] PM: hibernation: Registered nosave memory: [mem 0x0009f000-0x0009ffff] [ 0.705004][ T0] PM: hibernation: Registered nosave memory: [mem 0x000a0000-0x000effff] [ 0.707128][ T0] PM: hibernation: Registered nosave memory: [mem 0x000f0000-0x000fffff] [ 0.710236][ T0] PM: hibernation: Registered nosave memory: [mem 0xbfffd000-0xbfffffff] [ 0.713130][ T0] PM: hibernation: Registered nosave memory: [mem 0xc0000000-0xfffbbfff] [ 0.715923][ T0] PM: hibernation: Registered nosave memory: [mem 0xfffbc000-0xffffffff] [ 0.717249][ T0] [mem 0xc0000000-0xfffbbfff] available for PCI devices [ 0.718691][ T0] Booting paravirtualized kernel on KVM [ 0.720323][ T0] clocksource: refined-jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604462750000 ns [ 0.787238][ T0] setup_percpu: NR_CPUS:8 nr_cpumask_bits:8 nr_cpu_ids:2 nr_node_ids:2 [ 0.790955][ T0] percpu: Embedded 64 pages/cpu s222280 r8192 d31672 u1048576 [ 0.792746][ T0] kvm-guest: stealtime: cpu 0, msr b9c1fb80 [ 0.794274][ T0] kvm-guest: PV spinlocks enabled [ 0.795325][ T0] PV qspinlock hash table entries: 256 (order: 0, 4096 bytes, linear) [ 0.798201][ T0] Built 2 zonelists, mobility grouping on. Total pages: 2064360 [ 0.799962][ T0] Policy zone: Normal [ 0.800940][ T0] Kernel command line: earlyprintk=serial oops=panic panic_on_warn=1 nmi_watchdog=panic panic=86400 net.ifnames=0 sysctl.kernel.hung_task_all_cpu_backtrace=1 ima_policy=tcb watchdog_thresh=55 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 rcupdate.rcu_expedited=1 root=/dev/sda console=ttyS0 vsyscall=native BOOT_IMAGE=/vmlinuz root=/dev/sda1 console=ttyS0 earlyprintk=serial vsyscall=native oops=panic panic_on_warn=1 nmi_watchdog=panic panic=86400 net.ifnames=0 sysctl.kernel.hung_task_all_cpu_backtrace=1 [ 0.832264][ T0] mem auto-init: stack:off, heap alloc:on, heap free:off [ 1.760984][ T0] Memory: 6855880K/8388596K available (135200K kernel code, 36831K rwdata, 28860K rodata, 2656K init, 24856K bss, 1532460K reserved, 0K cma-reserved) [ 1.766501][ T0] SLUB: HWalign=64, Order=0-3, MinObjects=0, CPUs=2, Nodes=2 [ 1.772242][ T0] Running RCU self tests [ 1.773780][ T0] rcu: Preemptible hierarchical RCU implementation. [ 1.776562][ T0] rcu: RCU lockdep checking is enabled. [ 1.777706][ T0] rcu: RCU restricting CPUs from NR_CPUS=8 to nr_cpu_ids=2. [ 1.779634][ T0] rcu: RCU callback double-/use-after-free debug enabled. [ 1.781945][ T0] rcu: RCU debug extended QS entry/exit. [ 1.783556][ T0] All grace periods are expedited (rcu_expedited). [ 1.785112][ T0] Trampoline variant of Tasks RCU enabled. [ 1.786333][ T0] Tracing variant of Tasks RCU enabled. [ 1.787956][ T0] rcu: RCU calculated value of scheduler-enlistment delay is 10 jiffies. [ 1.790760][ T0] rcu: Adjusting geometry for rcu_fanout_leaf=16, nr_cpu_ids=2 [ 1.813528][ T0] NR_IRQS: 4352, nr_irqs: 440, preallocated irqs: 16 [ 1.816288][ T0] kfence: initialized - using 2097152 bytes for 255 objects at 0xffff88823bc00000-0xffff88823be00000 [ 1.819037][ T0] random: crng done (trusting CPU's manufacturer) [ 1.821621][ T0] Console: colour VGA+ 80x25 [ 1.823531][ T0] printk: console [ttyS0] enabled [ 1.823531][ T0] printk: console [ttyS0] enabled [ 1.827154][ T0] printk: bootconsole [earlyser0] disabled [ 1.827154][ T0] printk: bootconsole [earlyser0] disabled [ 1.830500][ T0] Lock dependency validator: Copyright (c) 2006 Red Hat, Inc., Ingo Molnar [ 1.832908][ T0] ... MAX_LOCKDEP_SUBCLASSES: 8 [ 1.834181][ T0] ... MAX_LOCK_DEPTH: 48 [ 1.835414][ T0] ... MAX_LOCKDEP_KEYS: 8192 [ 1.837302][ T0] ... CLASSHASH_SIZE: 4096 [ 1.838698][ T0] ... MAX_LOCKDEP_ENTRIES: 32768 [ 1.840745][ T0] ... MAX_LOCKDEP_CHAINS: 65536 [ 1.842050][ T0] ... CHAINHASH_SIZE: 32768 [ 1.843468][ T0] memory used by lock dependency info: 6365 kB [ 1.845463][ T0] memory used for stack traces: 4224 kB [ 1.846801][ T0] per task-struct memory footprint: 1920 bytes [ 1.848096][ T0] mempolicy: Enabling automatic NUMA balancing. Configure with numa_balancing= or the kernel.numa_balancing sysctl [ 1.851721][ T0] ACPI: Core revision 20201113 [ 1.853420][ T0] APIC: Switch to symmetric I/O mode setup [ 1.858589][ T0] ..TIMER: vector=0x30 apic1=0 pin1=0 apic2=-1 pin2=-1 [ 1.860908][ T0] clocksource: tsc-early: mask: 0xffffffffffffffff max_cycles: 0x212735223b2, max_idle_ns: 440795277976 ns [ 1.866804][ T0] Calibrating delay loop (skipped) preset value.. 4600.00 BogoMIPS (lpj=23000000) [ 1.869279][ T0] pid_max: default: 32768 minimum: 301 [ 1.871299][ T0] LSM: Security Framework initializing [ 1.873013][ T0] Yama: becoming mindful. [ 1.876985][ T0] TOMOYO Linux initialized [ 1.879056][ T0] AppArmor: AppArmor initialized [ 1.880449][ T0] LSM support for eBPF active [ 1.890717][ T0] Dentry cache hash table entries: 1048576 (order: 11, 8388608 bytes, vmalloc) [ 1.897459][ T0] Inode-cache hash table entries: 524288 (order: 10, 4194304 bytes, vmalloc) [ 1.901495][ T0] Mount-cache hash table entries: 16384 (order: 5, 131072 bytes, vmalloc) [ 1.904891][ T0] Mountpoint-cache hash table entries: 16384 (order: 5, 131072 bytes, vmalloc) [ 1.910795][ T0] Last level iTLB entries: 4KB 1024, 2MB 1024, 4MB 1024 [ 1.912822][ T0] Last level dTLB entries: 4KB 1024, 2MB 1024, 4MB 1024, 1GB 4 [ 1.915055][ T0] Spectre V1 : Mitigation: usercopy/swapgs barriers and __user pointer sanitization [ 1.916878][ T0] Spectre V2 : Spectre mitigation: kernel not compiled with retpoline; no mitigation available! [ 1.916933][ T0] Speculative Store Bypass: Mitigation: Speculative Store Bypass disabled via prctl [ 1.922609][ T0] MDS: Mitigation: Clear CPU buffers [ 1.926872][ T0] Freeing SMP alternatives memory: 104K [ 2.049318][ T1] smpboot: CPU0: Intel(R) Xeon(R) CPU @ 2.30GHz (family: 0x6, model: 0x3f, stepping: 0x0) [ 2.054779][ T1] Performance Events: unsupported p6 CPU model 63 no PMU driver, software events only. [ 2.056796][ T1] rcu: Hierarchical SRCU implementation. [ 2.061773][ T1] NMI watchdog: Perf NMI watchdog permanently disabled [ 2.066272][ T1] smp: Bringing up secondary CPUs ... [ 2.069409][ T1] x86: Booting SMP configuration: [ 2.072021][ T1] .... node #0, CPUs: #1 [ 0.040817][ T0] kvm-clock: cpu 1, msr ede4041, secondary cpu clock [ 2.076930][ T15] kvm-guest: stealtime: cpu 1, msr b9d1fb80 [ 2.076930][ 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. [ 2.080506][ T1] smp: Brought up 2 nodes, 2 CPUs [ 2.081818][ T1] smpboot: Max logical packages: 1 [ 2.083793][ T1] smpboot: Total of 2 processors activated (9200.00 BogoMIPS) [ 2.089019][ T1] devtmpfs: initialized [ 2.089638][ T1] x86/mm: Memory block size: 128MB [ 2.134282][ T1] clocksource: jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604462750000 ns [ 2.134490][ T24] kworker/u4:0 (24) used greatest stack depth: 27320 bytes left [ 2.136951][ T1] futex hash table entries: 512 (order: 4, 65536 bytes, vmalloc) [ 2.148015][ T1] PM: RTC time: 14:07:15, date: 2020-12-14 [ 2.152567][ T1] NET: Registered protocol family 16 [ 2.160898][ T1] audit: initializing netlink subsys (disabled) [ 2.162796][ T37] audit: type=2000 audit(1607954835.814:1): state=initialized audit_enabled=0 res=1 [ 2.166848][ T1] thermal_sys: Registered thermal governor 'step_wise' [ 2.166848][ T1] thermal_sys: Registered thermal governor 'user_space' [ 2.168577][ T1] cpuidle: using governor menu [ 2.182113][ T1] NET: Registered protocol family 42 [ 2.189803][ T1] ACPI: bus type PCI registered [ 2.193131][ T1] PCI: Using configuration type 1 for base access [ 3.224524][ T1] WARNING: workqueue cpumask: online intersect > possible intersect [ 3.229284][ T1] HugeTLB registered 1.00 GiB page size, pre-allocated 0 pages [ 3.229587][ T1] HugeTLB registered 2.00 MiB page size, pre-allocated 0 pages [ 3.257620][ T1] cryptd: max_cpu_qlen set to 1000 [ 3.297957][ T1] raid6: skip pq benchmark and using algorithm avx2x4 [ 3.300115][ T1] raid6: using avx2x2 recovery algorithm [ 3.303696][ T1] ACPI: Added _OSI(Module Device) [ 3.306863][ T1] ACPI: Added _OSI(Processor Device) [ 3.308070][ T1] ACPI: Added _OSI(3.0 _SCP Extensions) [ 3.309484][ T1] ACPI: Added _OSI(Processor Aggregator Device) [ 3.311106][ T1] ACPI: Added _OSI(Linux-Dell-Video) [ 3.313123][ T1] ACPI: Added _OSI(Linux-Lenovo-NV-HDMI-Audio) [ 3.317301][ T1] ACPI: Added _OSI(Linux-HPI-Hybrid-Graphics) [ 3.378419][ T1] ACPI: 2 ACPI AML tables successfully acquired and loaded [ 3.434632][ T1] ACPI: Interpreter enabled [ 3.437108][ T1] ACPI: (supports S0 S3 S4 S5) [ 3.438588][ T1] ACPI: Using IOAPIC for interrupt routing [ 3.440657][ T1] PCI: Using host bridge windows from ACPI; if necessary, use "pci=nocrs" and report a bug [ 3.447087][ T1] ACPI: Enabled 16 GPEs in block 00 to 0F [ 3.562108][ T1] ACPI: PCI Root Bridge [PCI0] (domain 0000 [bus 00-ff]) [ 3.564843][ T1] acpi PNP0A03:00: _OSC: OS supports [ASPM ClockPM Segments MSI HPX-Type3] [ 3.567413][ T1] acpi PNP0A03:00: fail to add MMCONFIG information, can't access extended PCI configuration space under this bridge. [ 3.578497][ T1] PCI host bridge to bus 0000:00 [ 3.580439][ T1] pci_bus 0000:00: Unknown NUMA node; performance will be reduced [ 3.582757][ T1] pci_bus 0000:00: root bus resource [io 0x0000-0x0cf7 window] [ 3.585284][ T1] pci_bus 0000:00: root bus resource [io 0x0d00-0xffff window] [ 3.587383][ T1] pci_bus 0000:00: root bus resource [mem 0x000a0000-0x000bffff window] [ 3.590118][ T1] pci_bus 0000:00: root bus resource [mem 0xc0000000-0xfebfefff window] [ 3.591677][ T1] pci_bus 0000:00: root bus resource [bus 00-ff] [ 3.593849][ T1] pci 0000:00:00.0: [8086:1237] type 00 class 0x060000 [ 3.601553][ T1] pci 0000:00:01.0: [8086:7110] type 00 class 0x060100 [ 3.629938][ T1] pci 0000:00:01.3: [8086:7113] type 00 class 0x068000 [ 3.650123][ T1] pci 0000:00:01.3: quirk: [io 0xb000-0xb03f] claimed by PIIX4 ACPI [ 3.657617][ T1] pci 0000:00:03.0: [1af4:1004] type 00 class 0x000000 [ 3.666665][ T1] pci 0000:00:03.0: reg 0x10: [io 0xc000-0xc03f] [ 3.672692][ T1] pci 0000:00:03.0: reg 0x14: [mem 0xfe800000-0xfe80007f] [ 3.695136][ T1] pci 0000:00:04.0: [1af4:1000] type 00 class 0x020000 [ 3.708260][ T1] pci 0000:00:04.0: reg 0x10: [io 0xc040-0xc07f] [ 3.715570][ T1] pci 0000:00:04.0: reg 0x14: [mem 0xfe801000-0xfe80107f] [ 3.741071][ T1] pci 0000:00:05.0: [1ae0:a002] type 00 class 0x030000 [ 3.760646][ T1] pci 0000:00:05.0: reg 0x10: [mem 0xfe000000-0xfe7fffff] [ 3.802745][ T1] pci 0000:00:06.0: [1af4:1002] type 00 class 0x00ff00 [ 3.816852][ T1] pci 0000:00:06.0: reg 0x10: [io 0xc080-0xc09f] [ 3.848458][ T1] pci 0000:00:07.0: [1af4:1005] type 00 class 0x00ff00 [ 3.862107][ T1] pci 0000:00:07.0: reg 0x10: [io 0xc0a0-0xc0bf] [ 3.871073][ T1] pci 0000:00:07.0: reg 0x14: [mem 0xfe802000-0xfe80203f] [ 3.898246][ T1] ACPI: PCI Interrupt Link [LNKA] (IRQs 5 *10 11) [ 3.904327][ T1] ACPI: PCI Interrupt Link [LNKB] (IRQs 5 *10 11) [ 3.910966][ T1] ACPI: PCI Interrupt Link [LNKC] (IRQs 5 10 *11) [ 3.918964][ T1] ACPI: PCI Interrupt Link [LNKD] (IRQs 5 10 *11) [ 3.926374][ T1] ACPI: PCI Interrupt Link [LNKS] (IRQs *9) [ 3.944735][ T1] iommu: Default domain type: Translated [ 3.950699][ T1] pci 0000:00:05.0: vgaarb: setting as boot VGA device [ 3.952657][ T1] pci 0000:00:05.0: vgaarb: VGA device added: decodes=io+mem,owns=io+mem,locks=none [ 3.955386][ T1] pci 0000:00:05.0: vgaarb: bridge control possible [ 3.956872][ T1] vgaarb: loaded [ 3.963332][ T1] SCSI subsystem initialized [ 3.973379][ T1] ACPI: bus type USB registered [ 3.975899][ T1] usbcore: registered new interface driver usbfs [ 3.977526][ T1] usbcore: registered new interface driver hub [ 3.978905][ T1] usbcore: registered new device driver usb [ 3.986934][ T1] mc: Linux media interface: v0.10 [ 3.988507][ T1] videodev: Linux video capture interface: v2.00 [ 3.991577][ T1] pps_core: LinuxPPS API ver. 1 registered [ 3.993605][ T1] pps_core: Software ver. 5.3.6 - Copyright 2005-2007 Rodolfo Giometti [ 3.996410][ T1] PTP clock support registered [ 3.999556][ T1] EDAC MC: Ver: 3.0.0 [ 4.005818][ T1] Advanced Linux Sound Architecture Driver Initialized. [ 4.018385][ T1] Bluetooth: Core ver 2.22 [ 4.020062][ T1] NET: Registered protocol family 31 [ 4.021772][ T1] Bluetooth: HCI device and connection manager initialized [ 4.025293][ T1] Bluetooth: HCI socket layer initialized [ 4.027261][ T1] Bluetooth: L2CAP socket layer initialized [ 4.029207][ T1] Bluetooth: SCO socket layer initialized [ 4.031147][ T1] NET: Registered protocol family 8 [ 4.032514][ T1] NET: Registered protocol family 20 [ 4.034533][ T1] NetLabel: Initializing [ 4.035439][ T1] NetLabel: domain hash size = 128 [ 4.036814][ T1] NetLabel: protocols = UNLABELED CIPSOv4 CALIPSO [ 4.039347][ T1] NetLabel: unlabeled traffic allowed by default [ 4.043152][ T1] nfc: nfc_init: NFC Core ver 0.1 [ 4.045451][ T1] NET: Registered protocol family 39 [ 4.046970][ T1] PCI: Using ACPI for IRQ routing [ 4.058528][ T1] clocksource: Switched to clocksource kvm-clock [ 7.450583][ T1] VFS: Disk quotas dquot_6.6.0 [ 7.452332][ T1] VFS: Dquot-cache hash table entries: 512 (order 0, 4096 bytes) [ 7.455242][ T1] FS-Cache: Loaded [ 7.458050][ T1] CacheFiles: Loaded [ 7.459384][ T1] TOMOYO: 2.6.0 [ 7.460027][ T1] Mandatory Access Control activated. [ 7.463447][ T1] AppArmor: AppArmor Filesystem Enabled [ 7.465609][ T1] pnp: PnP ACPI init [ 7.481470][ T1] pnp: PnP ACPI: found 7 devices [ 7.549407][ T1] clocksource: acpi_pm: mask: 0xffffff max_cycles: 0xffffff, max_idle_ns: 2085701024 ns [ 7.553336][ T1] NET: Registered protocol family 2 [ 7.558297][ T1] tcp_listen_portaddr_hash hash table entries: 4096 (order: 6, 327680 bytes, vmalloc) [ 7.562574][ T1] TCP established hash table entries: 65536 (order: 7, 524288 bytes, vmalloc) [ 7.573301][ T1] TCP bind hash table entries: 65536 (order: 10, 4718592 bytes, vmalloc) [ 7.579022][ T1] TCP: Hash tables configured (established 65536 bind 65536) [ 7.582436][ T1] MPTCP token hash table entries: 8192 (order: 7, 720896 bytes, vmalloc) [ 7.586712][ T1] UDP hash table entries: 4096 (order: 7, 655360 bytes, vmalloc) [ 7.590163][ T1] UDP-Lite hash table entries: 4096 (order: 7, 655360 bytes, vmalloc) [ 7.595157][ T1] NET: Registered protocol family 1 [ 7.598160][ T1] RPC: Registered named UNIX socket transport module. [ 7.600802][ T1] RPC: Registered udp transport module. [ 7.604357][ T1] RPC: Registered tcp transport module. [ 7.605398][ T1] RPC: Registered tcp NFSv4.1 backchannel transport module. [ 7.609538][ T1] NET: Registered protocol family 44 [ 7.610420][ T1] pci_bus 0000:00: resource 4 [io 0x0000-0x0cf7 window] [ 7.611665][ T1] pci_bus 0000:00: resource 5 [io 0x0d00-0xffff window] [ 7.613284][ T1] pci_bus 0000:00: resource 6 [mem 0x000a0000-0x000bffff window] [ 7.614507][ T1] pci_bus 0000:00: resource 7 [mem 0xc0000000-0xfebfefff window] [ 7.616724][ T1] pci 0000:00:00.0: Limiting direct PCI/PCI transfers [ 7.618348][ T1] pci 0000:00:05.0: Video device with shadowed ROM at [mem 0x000c0000-0x000dffff] [ 7.619814][ T1] PCI: CLS 0 bytes, default 64 [ 7.624385][ T1] PCI-DMA: Using software bounce buffering for IO (SWIOTLB) [ 7.625695][ T1] software IO TLB: mapped [mem 0x00000000b5c00000-0x00000000b9c00000] (64MB) [ 7.633431][ T1] RAPL PMU: API unit is 2^-32 Joules, 0 fixed counters, 10737418240 ms ovfl timer [ 7.638438][ T1] kvm: already loaded the other module [ 7.640557][ T1] clocksource: tsc: mask: 0xffffffffffffffff max_cycles: 0x212735223b2, max_idle_ns: 440795277976 ns [ 7.642860][ T1] clocksource: Switched to clocksource tsc [ 7.719853][ T1] Initialise system trusted keyrings [ 7.724500][ T1] workingset: timestamp_bits=40 max_order=21 bucket_order=0 [ 7.768979][ T1] zbud: loaded [ 7.778997][ T1] DLM installed [ 7.786604][ T1] squashfs: version 4.0 (2009/01/31) Phillip Lougher [ 7.796652][ T1] FS-Cache: Netfs 'nfs' registered for caching [ 7.801018][ T1] NFS: Registering the id_resolver key type [ 7.803146][ T1] Key type id_resolver registered [ 7.804727][ T1] Key type id_legacy registered [ 7.806215][ T1] nfs4filelayout_init: NFSv4 File Layout Driver Registering... [ 7.808383][ T1] Installing knfsd (copyright (C) 1996 okir@monad.swb.de). [ 7.815832][ T1] FS-Cache: Netfs 'cifs' registered for caching [ 7.819460][ T1] Key type cifs.spnego registered [ 7.820786][ T1] Key type cifs.idmap registered [ 7.821824][ T1] ================================================================== [ 7.823511][ T1] BUG: KASAN: global-out-of-bounds in fs_validate_description+0x1a5/0x1d0 [ 7.825864][ T1] Read of size 8 at addr ffffffff899b8160 by task swapper/0/1 [ 7.827347][ T1] [ 7.827702][ T1] CPU: 1 PID: 1 Comm: swapper/0 Not tainted 5.10.0-rc7-next-20201214-syzkaller #0 [ 7.829020][ T1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 7.829020][ T1] Call Trace: [ 7.829020][ T1] dump_stack+0x107/0x163 [ 7.829020][ T1] ? fs_validate_description+0x1a5/0x1d0 [ 7.829020][ T1] ? fs_validate_description+0x1a5/0x1d0 [ 7.829020][ T1] print_address_description.constprop.0.cold+0x5/0x2f8 [ 7.829020][ T1] ? fs_validate_description+0x1a5/0x1d0 [ 7.836991][ T1] ? fs_validate_description+0x1a5/0x1d0 [ 7.836991][ T1] kasan_report.cold+0x79/0xd5 [ 7.836991][ T1] ? downgrade_write+0x330/0x3a0 [ 7.836991][ T1] ? fs_validate_description+0x1a5/0x1d0 [ 7.836991][ T1] fs_validate_description+0x1a5/0x1d0 [ 7.836991][ T1] ? init_sysv_fs+0x87/0x87 [ 7.836991][ T1] register_filesystem+0x78/0x320 [ 7.836991][ T1] ? init_sysv_fs+0x87/0x87 [ 7.836991][ T1] init_cifs+0x7a4/0x8cf [ 7.836991][ T1] do_one_initcall+0x103/0x690 [ 7.836991][ T1] ? perf_trace_initcall_level+0x400/0x400 [ 7.836991][ T1] ? parameq+0xa0/0x170 [ 7.836991][ T1] kernel_init_freeable+0x600/0x684 [ 7.836991][ T1] ? rest_init+0x460/0x460 [ 7.836991][ T1] kernel_init+0xe/0x1e0 [ 7.836991][ T1] ? rest_init+0x460/0x460 [ 7.836991][ T1] ret_from_fork+0x1f/0x30 [ 7.836991][ T1] [ 7.836991][ T1] The buggy address belongs to the variable: [ 7.836991][ T1] smb3_fs_parameters+0xc80/0xf60 [ 7.836991][ T1] [ 7.836991][ T1] Memory state around the buggy address: [ 7.836991][ T1] ffffffff899b8000: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 7.836991][ T1] ffffffff899b8080: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 7.836991][ T1] >ffffffff899b8100: 00 00 00 00 00 00 00 00 00 00 00 00 f9 f9 f9 f9 [ 7.836991][ T1] ^ [ 7.836991][ T1] ffffffff899b8180: 05 f9 f9 f9 f9 f9 f9 f9 06 f9 f9 f9 f9 f9 f9 f9 [ 7.836991][ T1] ffffffff899b8200: 06 f9 f9 f9 f9 f9 f9 f9 00 01 f9 f9 f9 f9 f9 f9 [ 7.836991][ T1] ================================================================== [ 7.836991][ T1] Disabling lock debugging due to kernel taint [ 7.867472][ T1] Kernel panic - not syncing: panic_on_warn set ... [ 7.869552][ T1] CPU: 1 PID: 1 Comm: swapper/0 Tainted: G B 5.10.0-rc7-next-20201214-syzkaller #0 [ 7.872156][ T1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 7.874626][ T1] Call Trace: [ 7.875182][ T1] dump_stack+0x107/0x163 [ 7.876560][ T1] panic+0x343/0x77f [ 7.877172][ T1] ? __warn_printk+0xf3/0xf3 [ 7.877172][ T1] ? preempt_schedule_common+0x59/0xc0 [ 7.877172][ T1] ? fs_validate_description+0x1a5/0x1d0 [ 7.877172][ T1] ? preempt_schedule_thunk+0x16/0x18 [ 7.877172][ T1] ? trace_hardirqs_on+0x38/0x1c0 [ 7.877172][ T1] ? trace_hardirqs_on+0x51/0x1c0 [ 7.877172][ T1] ? fs_validate_description+0x1a5/0x1d0 [ 7.877172][ T1] ? fs_validate_description+0x1a5/0x1d0 [ 7.877172][ T1] end_report+0x58/0x5e [ 7.877172][ T1] kasan_report.cold+0x67/0xd5 [ 7.877172][ T1] ? downgrade_write+0x330/0x3a0 [ 7.877172][ T1] ? fs_validate_description+0x1a5/0x1d0 [ 7.877172][ T1] fs_validate_description+0x1a5/0x1d0 [ 7.877172][ T1] ? init_sysv_fs+0x87/0x87 [ 7.877172][ T1] register_filesystem+0x78/0x320 [ 7.877172][ T1] ? init_sysv_fs+0x87/0x87 [ 7.877172][ T1] init_cifs+0x7a4/0x8cf [ 7.877172][ T1] do_one_initcall+0x103/0x690 [ 7.877172][ T1] ? perf_trace_initcall_level+0x400/0x400 [ 7.877172][ T1] ? parameq+0xa0/0x170 [ 7.877172][ T1] kernel_init_freeable+0x600/0x684 [ 7.877172][ T1] ? rest_init+0x460/0x460 [ 7.877172][ T1] kernel_init+0xe/0x1e0 [ 7.877172][ T1] ? rest_init+0x460/0x460 [ 7.877172][ T1] ret_from_fork+0x1f/0x30 [ 7.877172][ T1] Kernel Offset: disabled [ 7.877172][ T1] Rebooting in 86400 seconds..