[ 0.000000][ T0] Linux version 5.10.0-rc7-next-20201211-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 eddf001, primary cpu clock [ 0.000000][ T0] kvm-clock: using sched offset of 3244728129 cycles [ 0.001182][ T0] clocksource: kvm-clock: mask: 0xffffffffffffffff max_cycles: 0x1cd42e4dffb, max_idle_ns: 881590591483 ns [ 0.005650][ T0] tsc: Detected 2300.000 MHz processor [ 0.012091][ T0] last_pfn = 0x240000 max_arch_pfn = 0x400000000 [ 0.013767][ T0] x86/PAT: Configuration [0-7]: WB WC UC- UC WB WP UC- WT [ 0.015698][ T0] last_pfn = 0xbfffd max_arch_pfn = 0x400000000 [ 0.023266][ T0] found SMP MP-table at [mem 0x000f25a0-0x000f25af] [ 0.024654][ T0] Using GB pages for direct mapping [ 0.027975][ T0] ACPI: Early table checksum verification disabled [ 0.029798][ T0] ACPI: RSDP 0x00000000000F2320 000014 (v00 Google) [ 0.031342][ T0] ACPI: RSDT 0x00000000BFFFFFA0 000038 (v01 Google GOOGRSDT 00000001 GOOG 00000001) [ 0.034435][ T0] ACPI: FACP 0x00000000BFFFF340 0000F4 (v02 Google GOOGFACP 00000001 GOOG 00000001) [ 0.038588][ T0] ACPI: DSDT 0x00000000BFFFDA80 0018BA (v01 Google GOOGDSDT 00000001 GOOG 00000001) [ 0.041385][ T0] ACPI: FACS 0x00000000BFFFDA40 000040 [ 0.042857][ T0] ACPI: FACS 0x00000000BFFFDA40 000040 [ 0.043949][ T0] ACPI: SRAT 0x00000000BFFFFE70 0000C8 (v03 Google GOOGSRAT 00000001 GOOG 00000001) [ 0.046950][ T0] ACPI: APIC 0x00000000BFFFFDC0 000076 (v05 Google GOOGAPIC 00000001 GOOG 00000001) [ 0.050097][ T0] ACPI: SSDT 0x00000000BFFFF440 000980 (v01 Google GOOGSSDT 00000001 GOOG 00000001) [ 0.052004][ T0] ACPI: WAET 0x00000000BFFFFE40 000028 (v01 Google GOOGWAET 00000001 GOOG 00000001) [ 0.055348][ T0] SRAT: PXM 0 -> APIC 0x00 -> Node 0 [ 0.056575][ T0] SRAT: PXM 0 -> APIC 0x01 -> Node 0 [ 0.057969][ T0] ACPI: SRAT: Node 0 PXM 0 [mem 0x00000000-0x0009ffff] [ 0.059637][ T0] ACPI: SRAT: Node 0 PXM 0 [mem 0x00100000-0xbfffffff] [ 0.060967][ T0] ACPI: SRAT: Node 0 PXM 0 [mem 0x100000000-0x23fffffff] [ 0.062965][ T0] NUMA: Node 0 [mem 0x00000000-0x0009ffff] + [mem 0x00100000-0xbfffffff] -> [mem 0x00000000-0xbfffffff] [ 0.065265][ T0] NUMA: Node 0 [mem 0x00000000-0xbfffffff] + [mem 0x100000000-0x23fffffff] -> [mem 0x00000000-0x23fffffff] [ 0.067807][ T0] Faking node 0 at [mem 0x0000000000000000-0x000000013fffffff] (5120MB) [ 0.069737][ T0] Faking node 1 at [mem 0x0000000140000000-0x000000023fffffff] (4096MB) [ 0.072666][ T0] NODE_DATA(0) allocated [mem 0x13fffb000-0x13fffffff] [ 0.074567][ T0] NODE_DATA(1) allocated [mem 0x23fff8000-0x23fffcfff] [ 0.131831][ T0] memblock: reserved range [0x0000000000000000-0x0000000000001000] is not in memory [ 0.134206][ T0] memblock: reserved range [0x000000000009f000-0x0000000000100000] is not in memory [ 0.137432][ T0] Zone ranges: [ 0.138090][ T0] DMA [mem 0x0000000000000000-0x0000000000ffffff] [ 0.139500][ T0] DMA32 [mem 0x0000000001000000-0x00000000ffffffff] [ 0.141593][ T0] Normal [mem 0x0000000100000000-0x000000023fffffff] [ 0.144514][ T0] Device empty [ 0.145684][ T0] Movable zone start for each node [ 0.146874][ T0] Early memory node ranges [ 0.148062][ T0] node 0: [mem 0x0000000000000000-0x00000000bfffcfff] [ 0.150085][ T0] node 0: [mem 0x0000000100000000-0x000000013fffffff] [ 0.152083][ T0] node 1: [mem 0x0000000140000000-0x000000023fffffff] [ 0.154143][ T0] Initmem setup node 0 [mem 0x0000000000000000-0x000000013fffffff] [ 0.180223][ T0] DMA32: Zeroed struct page in unavailable ranges: 3 [ 0.190430][ T0] Initmem setup node 1 [mem 0x0000000140000000-0x000000023fffffff] [ 0.681849][ T0] kasan: KernelAddressSanitizer initialized [ 0.684179][ T0] ACPI: PM-Timer IO Port: 0xb008 [ 0.685232][ T0] ACPI: LAPIC_NMI (acpi_id[0xff] dfl dfl lint[0x1]) [ 0.687804][ T0] IOAPIC[0]: apic_id 0, version 17, address 0xfec00000, GSI 0-23 [ 0.690936][ T0] ACPI: INT_SRC_OVR (bus 0 bus_irq 5 global_irq 5 high level) [ 0.692675][ T0] ACPI: INT_SRC_OVR (bus 0 bus_irq 9 global_irq 9 high level) [ 0.695218][ T0] ACPI: INT_SRC_OVR (bus 0 bus_irq 10 global_irq 10 high level) [ 0.696955][ T0] ACPI: INT_SRC_OVR (bus 0 bus_irq 11 global_irq 11 high level) [ 0.699055][ T0] Using ACPI (MADT) for SMP configuration information [ 0.700202][ T0] smpboot: Allowing 2 CPUs, 0 hotplug CPUs [ 0.701179][ T0] PM: hibernation: Registered nosave memory: [mem 0x00000000-0x00000fff] [ 0.703305][ T0] PM: hibernation: Registered nosave memory: [mem 0x0009f000-0x0009ffff] [ 0.705186][ T0] PM: hibernation: Registered nosave memory: [mem 0x000a0000-0x000effff] [ 0.707606][ T0] PM: hibernation: Registered nosave memory: [mem 0x000f0000-0x000fffff] [ 0.710619][ T0] PM: hibernation: Registered nosave memory: [mem 0xbfffd000-0xbfffffff] [ 0.713352][ T0] PM: hibernation: Registered nosave memory: [mem 0xc0000000-0xfffbbfff] [ 0.716199][ T0] PM: hibernation: Registered nosave memory: [mem 0xfffbc000-0xffffffff] [ 0.718835][ T0] [mem 0xc0000000-0xfffbbfff] available for PCI devices [ 0.721025][ T0] Booting paravirtualized kernel on KVM [ 0.722412][ T0] clocksource: refined-jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604462750000 ns [ 0.790327][ T0] setup_percpu: NR_CPUS:8 nr_cpumask_bits:8 nr_cpu_ids:2 nr_node_ids:2 [ 0.794047][ T0] percpu: Embedded 64 pages/cpu s223240 r8192 d30712 u1048576 [ 0.796673][ T0] kvm-guest: stealtime: cpu 0, msr b9c1fb80 [ 0.798313][ T0] kvm-guest: PV spinlocks enabled [ 0.799839][ T0] PV qspinlock hash table entries: 256 (order: 0, 4096 bytes, linear) [ 0.801883][ T0] Built 2 zonelists, mobility grouping on. Total pages: 2064360 [ 0.803390][ T0] Policy zone: Normal [ 0.804367][ 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 [ 0.831809][ T0] mem auto-init: stack:off, heap alloc:on, heap free:off [ 1.721349][ T0] Memory: 6855880K/8388596K available (135200K kernel code, 36816K rwdata, 28852K rodata, 2656K init, 24876K bss, 1532460K reserved, 0K cma-reserved) [ 1.726758][ T0] SLUB: HWalign=64, Order=0-3, MinObjects=0, CPUs=2, Nodes=2 [ 1.731966][ T0] Running RCU self tests [ 1.733070][ T0] rcu: Preemptible hierarchical RCU implementation. [ 1.734844][ T0] rcu: RCU lockdep checking is enabled. [ 1.736126][ T0] rcu: RCU restricting CPUs from NR_CPUS=8 to nr_cpu_ids=2. [ 1.737530][ T0] rcu: RCU callback double-/use-after-free debug enabled. [ 1.738735][ T0] rcu: RCU debug extended QS entry/exit. [ 1.739850][ T0] All grace periods are expedited (rcu_expedited). [ 1.741669][ T0] Trampoline variant of Tasks RCU enabled. [ 1.743309][ T0] Tracing variant of Tasks RCU enabled. [ 1.744730][ T0] rcu: RCU calculated value of scheduler-enlistment delay is 10 jiffies. [ 1.746937][ T0] rcu: Adjusting geometry for rcu_fanout_leaf=16, nr_cpu_ids=2 [ 1.769564][ T0] NR_IRQS: 4352, nr_irqs: 440, preallocated irqs: 16 [ 1.773177][ T0] kfence: initialized - using 2097152 bytes for 255 objects at 0xffff88823bc00000-0xffff88823be00000 [ 1.775965][ T0] random: crng done (trusting CPU's manufacturer) [ 1.778843][ T0] Console: colour VGA+ 80x25 [ 1.779955][ T0] printk: console [ttyS0] enabled [ 1.779955][ T0] printk: console [ttyS0] enabled [ 1.782652][ T0] printk: bootconsole [earlyser0] disabled [ 1.782652][ T0] printk: bootconsole [earlyser0] disabled [ 1.786270][ T0] Lock dependency validator: Copyright (c) 2006 Red Hat, Inc., Ingo Molnar [ 1.788079][ T0] ... MAX_LOCKDEP_SUBCLASSES: 8 [ 1.789245][ T0] ... MAX_LOCK_DEPTH: 48 [ 1.790296][ T0] ... MAX_LOCKDEP_KEYS: 8192 [ 1.791979][ T0] ... CLASSHASH_SIZE: 4096 [ 1.793434][ T0] ... MAX_LOCKDEP_ENTRIES: 32768 [ 1.794994][ T0] ... MAX_LOCKDEP_CHAINS: 65536 [ 1.796443][ T0] ... CHAINHASH_SIZE: 32768 [ 1.797969][ T0] memory used by lock dependency info: 6365 kB [ 1.799644][ T0] memory used for stack traces: 4224 kB [ 1.801335][ T0] per task-struct memory footprint: 1920 bytes [ 1.803027][ T0] mempolicy: Enabling automatic NUMA balancing. Configure with numa_balancing= or the kernel.numa_balancing sysctl [ 1.806006][ T0] ACPI: Core revision 20201113 [ 1.807915][ T0] APIC: Switch to symmetric I/O mode setup [ 1.814642][ T0] ..TIMER: vector=0x30 apic1=0 pin1=0 apic2=-1 pin2=-1 [ 1.816680][ T0] clocksource: tsc-early: mask: 0xffffffffffffffff max_cycles: 0x212735223b2, max_idle_ns: 440795277976 ns [ 1.819788][ T0] Calibrating delay loop (skipped) preset value.. 4600.00 BogoMIPS (lpj=23000000) [ 1.822565][ T0] pid_max: default: 32768 minimum: 301 [ 1.824273][ T0] LSM: Security Framework initializing [ 1.826022][ T0] Yama: becoming mindful. [ 1.827600][ T0] TOMOYO Linux initialized [ 1.830926][ T0] AppArmor: AppArmor initialized [ 1.832388][ T0] LSM support for eBPF active [ 1.842930][ T0] Dentry cache hash table entries: 1048576 (order: 11, 8388608 bytes, vmalloc) [ 1.849891][ T0] Inode-cache hash table entries: 524288 (order: 10, 4194304 bytes, vmalloc) [ 1.852194][ T0] Mount-cache hash table entries: 16384 (order: 5, 131072 bytes, vmalloc) [ 1.854364][ T0] Mountpoint-cache hash table entries: 16384 (order: 5, 131072 bytes, vmalloc) [ 1.859830][ T0] Last level iTLB entries: 4KB 1024, 2MB 1024, 4MB 1024 [ 1.861220][ T0] Last level dTLB entries: 4KB 1024, 2MB 1024, 4MB 1024, 1GB 4 [ 1.863730][ T0] Spectre V1 : Mitigation: usercopy/swapgs barriers and __user pointer sanitization [ 1.866153][ T0] Spectre V2 : Spectre mitigation: kernel not compiled with retpoline; no mitigation available! [ 1.866207][ T0] Speculative Store Bypass: Mitigation: Speculative Store Bypass disabled via prctl [ 1.869803][ T0] MDS: Mitigation: Clear CPU buffers [ 1.871554][ T0] Freeing SMP alternatives memory: 104K [ 1.994857][ T1] smpboot: CPU0: Intel(R) Xeon(R) CPU @ 2.30GHz (family: 0x6, model: 0x3f, stepping: 0x0) [ 1.999779][ T1] Performance Events: unsupported p6 CPU model 63 no PMU driver, software events only. [ 1.999779][ T1] rcu: Hierarchical SRCU implementation. [ 2.004186][ T1] NMI watchdog: Perf NMI watchdog permanently disabled [ 2.006881][ T1] smp: Bringing up secondary CPUs ... [ 2.009697][ T1] x86: Booting SMP configuration: [ 2.009902][ T1] .... node #0, CPUs: #1 [ 0.036925][ T0] kvm-clock: cpu 1, msr eddf041, secondary cpu clock [ 2.013955][ T15] kvm-guest: stealtime: cpu 1, msr b9d1fb80 [ 2.013955][ 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. [ 2.013955][ T1] smp: Brought up 2 nodes, 2 CPUs [ 2.019838][ T1] smpboot: Max logical packages: 1 [ 2.020611][ T1] smpboot: Total of 2 processors activated (9200.00 BogoMIPS) [ 2.023839][ T1] devtmpfs: initialized [ 2.023839][ T1] x86/mm: Memory block size: 128MB [ 2.066197][ T1] clocksource: jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604462750000 ns [ 2.067112][ T23] kworker/u4:0 (23) used greatest stack depth: 27824 bytes left [ 2.066197][ T1] futex hash table entries: 512 (order: 4, 65536 bytes, vmalloc) [ 2.073597][ T1] PM: RTC time: 06:49:04, date: 2020-12-12 [ 2.082698][ T1] NET: Registered protocol family 16 [ 2.090508][ T1] audit: initializing netlink subsys (disabled) [ 2.091755][ T35] audit: type=2000 audit(1607755744.431:1): state=initialized audit_enabled=0 res=1 [ 2.096222][ T46] kworker/u4:0 (46) used greatest stack depth: 27320 bytes left [ 2.103389][ T1] thermal_sys: Registered thermal governor 'step_wise' [ 2.103389][ T1] thermal_sys: Registered thermal governor 'user_space' [ 2.104508][ T1] cpuidle: using governor menu [ 2.104508][ T56] kworker/u4:0 (56) used greatest stack depth: 26304 bytes left [ 2.104508][ T1] NET: Registered protocol family 42 [ 2.110935][ T1] ACPI: bus type PCI registered [ 2.113232][ T1] PCI: Using configuration type 1 for base access [ 2.585528][ T806] kworker/u4:4 (806) used greatest stack depth: 25912 bytes left [ 3.134728][ T1] WARNING: workqueue cpumask: online intersect > possible intersect [ 3.136439][ T1] HugeTLB registered 1.00 GiB page size, pre-allocated 0 pages [ 3.140741][ T1] HugeTLB registered 2.00 MiB page size, pre-allocated 0 pages [ 3.169987][ T1] cryptd: max_cpu_qlen set to 1000 [ 3.201994][ T1] raid6: skip pq benchmark and using algorithm avx2x4 [ 3.201994][ T1] raid6: using avx2x2 recovery algorithm [ 3.209803][ T1] ACPI: Added _OSI(Module Device) [ 3.209803][ T1] ACPI: Added _OSI(Processor Device) [ 3.209803][ T1] ACPI: Added _OSI(3.0 _SCP Extensions) [ 3.209803][ T1] ACPI: Added _OSI(Processor Aggregator Device) [ 3.209833][ T1] ACPI: Added _OSI(Linux-Dell-Video) [ 3.211049][ T1] ACPI: Added _OSI(Linux-Lenovo-NV-HDMI-Audio) [ 3.212257][ T1] ACPI: Added _OSI(Linux-HPI-Hybrid-Graphics) [ 3.272221][ T1] ACPI: 2 ACPI AML tables successfully acquired and loaded [ 3.327954][ T1] ACPI: Interpreter enabled [ 3.329120][ T1] ACPI: (supports S0 S3 S4 S5) [ 3.329880][ T1] ACPI: Using IOAPIC for interrupt routing [ 3.331024][ T1] PCI: Using host bridge windows from ACPI; if necessary, use "pci=nocrs" and report a bug [ 3.335827][ T1] ACPI: Enabled 16 GPEs in block 00 to 0F [ 3.455132][ T1] ACPI: PCI Root Bridge [PCI0] (domain 0000 [bus 00-ff]) [ 3.456634][ T1] acpi PNP0A03:00: _OSC: OS supports [ASPM ClockPM Segments MSI HPX-Type3] [ 3.458824][ T1] acpi PNP0A03:00: fail to add MMCONFIG information, can't access extended PCI configuration space under this bridge. [ 3.465883][ T1] PCI host bridge to bus 0000:00 [ 3.466747][ T1] pci_bus 0000:00: Unknown NUMA node; performance will be reduced [ 3.467843][ T1] pci_bus 0000:00: root bus resource [io 0x0000-0x0cf7 window] [ 3.469803][ T1] pci_bus 0000:00: root bus resource [io 0x0d00-0xffff window] [ 3.470838][ T1] pci_bus 0000:00: root bus resource [mem 0x000a0000-0x000bffff window] [ 3.472170][ T1] pci_bus 0000:00: root bus resource [mem 0xc0000000-0xfebfefff window] [ 3.473315][ T1] pci_bus 0000:00: root bus resource [bus 00-ff] [ 3.474507][ T1] pci 0000:00:00.0: [8086:1237] type 00 class 0x060000 [ 3.482162][ T1] pci 0000:00:01.0: [8086:7110] type 00 class 0x060100 [ 3.504912][ T1] pci 0000:00:01.3: [8086:7113] type 00 class 0x068000 [ 3.533350][ T1] pci 0000:00:01.3: quirk: [io 0xb000-0xb03f] claimed by PIIX4 ACPI [ 3.538466][ T1] pci 0000:00:03.0: [1af4:1004] type 00 class 0x000000 [ 3.561628][ T1] pci 0000:00:03.0: reg 0x10: [io 0xc000-0xc03f] [ 3.567766][ T1] pci 0000:00:03.0: reg 0x14: [mem 0xfe800000-0xfe80007f] [ 3.585596][ T1] pci 0000:00:04.0: [1af4:1000] type 00 class 0x020000 [ 3.594300][ T1] pci 0000:00:04.0: reg 0x10: [io 0xc040-0xc07f] [ 3.599804][ T1] pci 0000:00:04.0: reg 0x14: [mem 0xfe801000-0xfe80107f] [ 3.620068][ T1] pci 0000:00:05.0: [1ae0:a002] type 00 class 0x030000 [ 3.639965][ T1] pci 0000:00:05.0: reg 0x10: [mem 0xfe000000-0xfe7fffff] [ 3.675218][ T1] pci 0000:00:06.0: [1af4:1002] type 00 class 0x00ff00 [ 3.686592][ T1] pci 0000:00:06.0: reg 0x10: [io 0xc080-0xc09f] [ 3.711966][ T1] pci 0000:00:07.0: [1af4:1005] type 00 class 0x00ff00 [ 3.719803][ T1] pci 0000:00:07.0: reg 0x10: [io 0xc0a0-0xc0bf] [ 3.725807][ T1] pci 0000:00:07.0: reg 0x14: [mem 0xfe802000-0xfe80203f] [ 3.758293][ T1] ACPI: PCI Interrupt Link [LNKA] (IRQs 5 *10 11) [ 3.763707][ T1] ACPI: PCI Interrupt Link [LNKB] (IRQs 5 *10 11) [ 3.768415][ T1] ACPI: PCI Interrupt Link [LNKC] (IRQs 5 10 *11) [ 3.773323][ T1] ACPI: PCI Interrupt Link [LNKD] (IRQs 5 10 *11) [ 3.776564][ T1] ACPI: PCI Interrupt Link [LNKS] (IRQs *9) [ 3.790817][ T1] iommu: Default domain type: Translated [ 3.790950][ T1] pci 0000:00:05.0: vgaarb: setting as boot VGA device [ 3.791280][ T1] pci 0000:00:05.0: vgaarb: VGA device added: decodes=io+mem,owns=io+mem,locks=none [ 3.792674][ T1] pci 0000:00:05.0: vgaarb: bridge control possible [ 3.792674][ T1] vgaarb: loaded [ 3.804041][ T1] SCSI subsystem initialized [ 3.811630][ T1] ACPI: bus type USB registered [ 3.813074][ T1] usbcore: registered new interface driver usbfs [ 3.814557][ T1] usbcore: registered new interface driver hub [ 3.815814][ T1] usbcore: registered new device driver usb [ 3.823656][ T1] mc: Linux media interface: v0.10 [ 3.825226][ T1] videodev: Linux video capture interface: v2.00 [ 3.828746][ T1] pps_core: LinuxPPS API ver. 1 registered [ 3.829841][ T1] pps_core: Software ver. 5.3.6 - Copyright 2005-2007 Rodolfo Giometti [ 3.831412][ T1] PTP clock support registered [ 3.833479][ T1] EDAC MC: Ver: 3.0.0 [ 3.838170][ T1] Advanced Linux Sound Architecture Driver Initialized. [ 3.846134][ T1] Bluetooth: Core ver 2.22 [ 3.847182][ T1] NET: Registered protocol family 31 [ 3.848208][ T1] Bluetooth: HCI device and connection manager initialized [ 3.849934][ T1] Bluetooth: HCI socket layer initialized [ 3.851245][ T1] Bluetooth: L2CAP socket layer initialized [ 3.852223][ T1] Bluetooth: SCO socket layer initialized [ 3.853389][ T1] NET: Registered protocol family 8 [ 3.854381][ T1] NET: Registered protocol family 20 [ 3.855524][ T1] NetLabel: Initializing [ 3.856312][ T1] NetLabel: domain hash size = 128 [ 3.857056][ T1] NetLabel: protocols = UNLABELED CIPSOv4 CALIPSO [ 3.858263][ T1] NetLabel: unlabeled traffic allowed by default [ 3.860845][ T1] nfc: nfc_init: NFC Core ver 0.1 [ 3.862187][ T1] NET: Registered protocol family 39 [ 3.863221][ T1] PCI: Using ACPI for IRQ routing [ 3.871815][ T1] clocksource: Switched to clocksource kvm-clock [ 7.368032][ T1] VFS: Disk quotas dquot_6.6.0 [ 7.369146][ T1] VFS: Dquot-cache hash table entries: 512 (order 0, 4096 bytes) [ 7.370973][ T1] FS-Cache: Loaded [ 7.372785][ T1] CacheFiles: Loaded [ 7.374043][ T1] TOMOYO: 2.6.0 [ 7.374627][ T1] Mandatory Access Control activated. [ 7.378009][ T1] AppArmor: AppArmor Filesystem Enabled [ 7.379718][ T1] pnp: PnP ACPI init [ 7.395291][ T1] pnp: PnP ACPI: found 7 devices [ 7.460977][ T1] clocksource: acpi_pm: mask: 0xffffff max_cycles: 0xffffff, max_idle_ns: 2085701024 ns [ 7.463556][ T1] NET: Registered protocol family 2 [ 7.467572][ T1] tcp_listen_portaddr_hash hash table entries: 4096 (order: 6, 327680 bytes, vmalloc) [ 7.470409][ T1] TCP established hash table entries: 65536 (order: 7, 524288 bytes, vmalloc) [ 7.477738][ T1] TCP bind hash table entries: 65536 (order: 10, 4718592 bytes, vmalloc) [ 7.483508][ T1] TCP: Hash tables configured (established 65536 bind 65536) [ 7.486085][ T1] MPTCP token hash table entries: 8192 (order: 7, 720896 bytes, vmalloc) [ 7.488620][ T1] UDP hash table entries: 4096 (order: 7, 655360 bytes, vmalloc) [ 7.492128][ T1] UDP-Lite hash table entries: 4096 (order: 7, 655360 bytes, vmalloc) [ 7.494600][ T1] NET: Registered protocol family 1 [ 7.498175][ T1] RPC: Registered named UNIX socket transport module. [ 7.499247][ T1] RPC: Registered udp transport module. [ 7.500483][ T1] RPC: Registered tcp transport module. [ 7.501401][ T1] RPC: Registered tcp NFSv4.1 backchannel transport module. [ 7.504800][ T1] NET: Registered protocol family 44 [ 7.505593][ T1] pci_bus 0000:00: resource 4 [io 0x0000-0x0cf7 window] [ 7.506758][ T1] pci_bus 0000:00: resource 5 [io 0x0d00-0xffff window] [ 7.507808][ T1] pci_bus 0000:00: resource 6 [mem 0x000a0000-0x000bffff window] [ 7.509158][ T1] pci_bus 0000:00: resource 7 [mem 0xc0000000-0xfebfefff window] [ 7.511340][ T1] pci 0000:00:00.0: Limiting direct PCI/PCI transfers [ 7.512977][ T1] pci 0000:00:05.0: Video device with shadowed ROM at [mem 0x000c0000-0x000dffff] [ 7.514531][ T1] PCI: CLS 0 bytes, default 64 [ 7.519111][ T1] PCI-DMA: Using software bounce buffering for IO (SWIOTLB) [ 7.520466][ T1] software IO TLB: mapped [mem 0x00000000b5c00000-0x00000000b9c00000] (64MB) [ 7.528296][ T1] RAPL PMU: API unit is 2^-32 Joules, 0 fixed counters, 10737418240 ms ovfl timer [ 7.532672][ T1] kvm: already loaded the other module [ 7.533617][ T1] clocksource: tsc: mask: 0xffffffffffffffff max_cycles: 0x212735223b2, max_idle_ns: 440795277976 ns [ 7.535307][ T1] clocksource: Switched to clocksource tsc [ 7.612489][ T1] Initialise system trusted keyrings [ 7.615220][ T1] workingset: timestamp_bits=40 max_order=21 bucket_order=0 [ 7.657770][ T1] zbud: loaded [ 7.667154][ T1] DLM installed [ 7.674574][ T1] squashfs: version 4.0 (2009/01/31) Phillip Lougher [ 7.684532][ T1] FS-Cache: Netfs 'nfs' registered for caching [ 7.689013][ T1] NFS: Registering the id_resolver key type [ 7.690202][ T1] Key type id_resolver registered [ 7.691123][ T1] Key type id_legacy registered [ 7.692374][ T1] nfs4filelayout_init: NFSv4 File Layout Driver Registering... [ 7.693671][ T1] Installing knfsd (copyright (C) 1996 okir@monad.swb.de). [ 7.701652][ T1] FS-Cache: Netfs 'cifs' registered for caching [ 7.704886][ T1] Key type cifs.spnego registered [ 7.706133][ T1] Key type cifs.idmap registered [ 7.707132][ T1] ================================================================== [ 7.708528][ T1] BUG: KASAN: global-out-of-bounds in fs_validate_description+0x1a5/0x1d0 [ 7.710687][ T1] Read of size 8 at addr ffffffff899b8320 by task swapper/0/1 [ 7.711873][ T1] [ 7.712306][ T1] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 5.10.0-rc7-next-20201211-syzkaller #0 [ 7.713856][ T1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 7.714462][ T1] Call Trace: [ 7.714462][ T1] dump_stack+0x107/0x163 [ 7.714462][ T1] ? fs_validate_description+0x1a5/0x1d0 [ 7.714462][ T1] ? fs_validate_description+0x1a5/0x1d0 [ 7.714462][ T1] print_address_description.constprop.0.cold+0x5/0x2f8 [ 7.714462][ T1] ? fs_validate_description+0x1a5/0x1d0 [ 7.714462][ T1] ? fs_validate_description+0x1a5/0x1d0 [ 7.714462][ T1] kasan_report.cold+0x79/0xd5 [ 7.714462][ T1] ? downgrade_write+0x330/0x3a0 [ 7.714462][ T1] ? fs_validate_description+0x1a5/0x1d0 [ 7.714462][ T1] fs_validate_description+0x1a5/0x1d0 [ 7.714462][ T1] ? init_sysv_fs+0x87/0x87 [ 7.714462][ T1] register_filesystem+0x78/0x320 [ 7.714462][ T1] ? init_sysv_fs+0x87/0x87 [ 7.714462][ T1] init_cifs+0x7a4/0x8cf [ 7.714462][ T1] do_one_initcall+0x103/0x690 [ 7.714462][ T1] ? perf_trace_initcall_level+0x400/0x400 [ 7.714462][ T1] ? parameq+0xa0/0x170 [ 7.714462][ T1] kernel_init_freeable+0x600/0x684 [ 7.714462][ T1] ? rest_init+0x460/0x460 [ 7.714462][ T1] kernel_init+0xe/0x1e0 [ 7.714462][ T1] ? rest_init+0x460/0x460 [ 7.714462][ T1] ret_from_fork+0x1f/0x30 [ 7.714462][ T1] [ 7.714462][ T1] The buggy address belongs to the variable: [ 7.714462][ T1] smb3_fs_parameters+0xc60/0xf40 [ 7.714462][ T1] [ 7.714462][ T1] Memory state around the buggy address: [ 7.714462][ T1] ffffffff899b8200: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 7.714462][ T1] ffffffff899b8280: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 7.714462][ T1] >ffffffff899b8300: 00 00 00 00 f9 f9 f9 f9 05 f9 f9 f9 f9 f9 f9 f9 [ 7.714462][ T1] ^ [ 7.714462][ T1] ffffffff899b8380: 06 f9 f9 f9 f9 f9 f9 f9 06 f9 f9 f9 f9 f9 f9 f9 [ 7.714462][ T1] ffffffff899b8400: 00 01 f9 f9 f9 f9 f9 f9 00 f9 f9 f9 f9 f9 f9 f9 [ 7.714462][ T1] ================================================================== [ 7.714462][ T1] Disabling lock debugging due to kernel taint [ 7.761472][ T1] Kernel panic - not syncing: panic_on_warn set ... [ 7.762903][ T1] CPU: 1 PID: 1 Comm: swapper/0 Tainted: G B 5.10.0-rc7-next-20201211-syzkaller #0 [ 7.764500][ T1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 7.767176][ T1] Call Trace: [ 7.768222][ T1] dump_stack+0x107/0x163 [ 7.769172][ T1] panic+0x343/0x77f [ 7.770202][ T1] ? __warn_printk+0xf3/0xf3 [ 7.771281][ T1] ? preempt_schedule_common+0x59/0xc0 [ 7.771426][ T1] ? fs_validate_description+0x1a5/0x1d0 [ 7.771426][ T1] ? preempt_schedule_thunk+0x16/0x18 [ 7.771426][ T1] ? trace_hardirqs_on+0x38/0x1c0 [ 7.771426][ T1] ? trace_hardirqs_on+0x51/0x1c0 [ 7.771426][ T1] ? fs_validate_description+0x1a5/0x1d0 [ 7.771426][ T1] ? fs_validate_description+0x1a5/0x1d0 [ 7.771426][ T1] end_report+0x58/0x5e [ 7.771426][ T1] kasan_report.cold+0x67/0xd5 [ 7.771426][ T1] ? downgrade_write+0x330/0x3a0 [ 7.771426][ T1] ? fs_validate_description+0x1a5/0x1d0 [ 7.771426][ T1] fs_validate_description+0x1a5/0x1d0 [ 7.771426][ T1] ? init_sysv_fs+0x87/0x87 [ 7.771426][ T1] register_filesystem+0x78/0x320 [ 7.789925][ T1] ? init_sysv_fs+0x87/0x87 [ 7.789925][ T1] init_cifs+0x7a4/0x8cf [ 7.789925][ T1] do_one_initcall+0x103/0x690 [ 7.789925][ T1] ? perf_trace_initcall_level+0x400/0x400 [ 7.789925][ T1] ? parameq+0xa0/0x170 [ 7.789925][ T1] kernel_init_freeable+0x600/0x684 [ 7.789925][ T1] ? rest_init+0x460/0x460 [ 7.789925][ T1] kernel_init+0xe/0x1e0 [ 7.789925][ T1] ? rest_init+0x460/0x460 [ 7.789925][ T1] ret_from_fork+0x1f/0x30 [ 7.789925][ T1] Kernel Offset: disabled [ 7.789925][ T1] Rebooting in 86400 seconds..