[ 0.000000][ T0] Linux version 5.8.0-syzkaller (syzkaller@syzkaller) (gcc (GCC) 10.1.0-syz 20200507, GNU ld (GNU Binutils for Debian) 2.28) #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 net.ifnames=0 sysctl.kernel.hung_task_all_cpu_backtrace=1 security=selinux lsm=lockdown,yama,safesetid,integrity,selinux,tomoyo,bpf 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 rcupdate.rcu_expedited=1 [ 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: Supporting XSAVE feature 0x020: 'AVX-512 opmask' [ 0.000000][ T0] x86/fpu: Supporting XSAVE feature 0x040: 'AVX-512 Hi256' [ 0.000000][ T0] x86/fpu: Supporting XSAVE feature 0x080: 'AVX-512 ZMM_Hi256' [ 0.000000][ T0] x86/fpu: xstate_offset[2]: 576, xstate_sizes[2]: 256 [ 0.000000][ T0] x86/fpu: xstate_offset[5]: 1088, xstate_sizes[5]: 64 [ 0.000000][ T0] x86/fpu: xstate_offset[6]: 1152, xstate_sizes[6]: 512 [ 0.000000][ T0] x86/fpu: xstate_offset[7]: 1664, xstate_sizes[7]: 1024 [ 0.000000][ T0] x86/fpu: Enabled xstate features 0xe7, context size is 2688 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 0x0000000000100000-0x000000007ffdcfff] usable [ 0.000000][ T0] BIOS-e820: [mem 0x000000007ffdd000-0x000000007fffffff] reserved [ 0.000000][ T0] BIOS-e820: [mem 0x00000000b0000000-0x00000000bfffffff] reserved [ 0.000000][ T0] BIOS-e820: [mem 0x00000000fed1c000-0x00000000fed1ffff] reserved [ 0.000000][ T0] BIOS-e820: [mem 0x00000000feffc000-0x00000000feffffff] reserved [ 0.000000][ T0] BIOS-e820: [mem 0x00000000fffc0000-0x00000000ffffffff] reserved [ 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 2.8 present. [ 0.000000][ T0] DMI: QEMU Standard PC (Q35 + ICH9, 2009), BIOS rel-1.12.0-59-gc9ba5276e321-prebuilt.qemu.org 04/01/2014 [ 0.000000][ T0] Hypervisor detected: KVM [ 0.000000][ T0] kvm-clock: Using msrs 4b564d01 and 4b564d00 [ 0.000015][ T0] kvm-clock: cpu 0, msr becf001, primary cpu clock [ 0.000015][ T0] kvm-clock: using sched offset of 7100120295 cycles [ 0.007712][ T0] clocksource: kvm-clock: mask: 0xffffffffffffffff max_cycles: 0x1cd42e4dffb, max_idle_ns: 881590591483 ns [ 0.030903][ T0] tsc: Detected 2000.164 MHz processor [ 0.046526][ T0] last_pfn = 0x7ffdd max_arch_pfn = 0x400000000 [ 0.055372][ T0] x86/PAT: Configuration [0-7]: WB WC UC- UC WB WP UC- WT [ 0.078439][ T0] found SMP MP-table at [mem 0x000f5a40-0x000f5a4f] [ 0.088746][ T0] check: Scanning 1 areas for low memory corruption [ 0.099901][ T0] ACPI: Early table checksum verification disabled [ 0.108154][ T0] ACPI: RSDP 0x00000000000F5870 000014 (v00 BOCHS ) [ 0.115463][ T0] ACPI: RSDT 0x000000007FFE1F9D 000040 (v01 BOCHS BXPCRSDT 00000001 BXPC 00000001) [ 0.126042][ T0] ACPI: FACP 0x000000007FFE1860 0000F4 (v03 BOCHS BXPCFACP 00000001 BXPC 00000001) [ 0.136388][ T0] ACPI: DSDT 0x000000007FFDF040 002820 (v01 BOCHS BXPCDSDT 00000001 BXPC 00000001) [ 0.146904][ T0] ACPI: FACS 0x000000007FFDF000 000040 [ 0.153076][ T0] ACPI: APIC 0x000000007FFE1954 0000B0 (v01 BOCHS BXPCAPIC 00000001 BXPC 00000001) [ 0.163483][ T0] ACPI: HPET 0x000000007FFE1A04 000038 (v01 BOCHS BXPCHPET 00000001 BXPC 00000001) [ 0.173540][ T0] ACPI: SRAT 0x000000007FFE1A3C 000178 (v01 BOCHS BXPCSRAT 00000001 BXPC 00000001) [ 0.184419][ T0] ACPI: MCFG 0x000000007FFE1BB4 00003C (v01 BOCHS BXPCMCFG 00000001 BXPC 00000001) [ 0.195302][ T0] ACPI: SSDT 0x000000007FFE1BF0 0002CD (v01 BOCHS NVDIMM 00000001 BXPC 00000001) [ 0.207479][ T0] ACPI: NFIT 0x000000007FFE1EBD 0000E0 (v01 BOCHS BXPCNFIT 00000001 BXPC 00000001) [ 0.219886][ T0] SRAT: PXM 0 -> APIC 0x00 -> Node 0 [ 0.225615][ T0] SRAT: PXM 0 -> APIC 0x01 -> Node 0 [ 0.230904][ T0] SRAT: PXM 0 -> APIC 0x02 -> Node 0 [ 0.236799][ T0] SRAT: PXM 0 -> APIC 0x03 -> Node 0 [ 0.242450][ T0] SRAT: PXM 1 -> APIC 0x04 -> Node 1 [ 0.247730][ T0] SRAT: PXM 1 -> APIC 0x05 -> Node 1 [ 0.253311][ T0] SRAT: PXM 1 -> APIC 0x06 -> Node 1 [ 0.258981][ T0] SRAT: PXM 1 -> APIC 0x07 -> Node 1 [ 0.264919][ T0] ACPI: SRAT: Node 0 PXM 0 [mem 0x00000000-0x0009ffff] [ 0.272127][ T0] ACPI: SRAT: Node 0 PXM 0 [mem 0x00100000-0x3fffffff] [ 0.279458][ T0] ACPI: SRAT: Node 1 PXM 1 [mem 0x40000000-0x7fffffff] [ 0.287103][ T0] ACPI: SRAT: Node 1 PXM 1 [mem 0x100000000-0x57fffffff] hotplug [ 0.295690][ T0] NUMA: Node 0 [mem 0x00000000-0x0009ffff] + [mem 0x00100000-0x3fffffff] -> [mem 0x00000000-0x3fffffff] [ 0.308356][ T0] Faking node 0 at [mem 0x0000000000000000-0x000000003fffffff] (1024MB) [ 0.317319][ T0] Faking node 1 at [mem 0x0000000040000000-0x000000007ffdcfff] (1023MB) [ 0.328267][ T0] NODE_DATA(0) allocated [mem 0x3fffb000-0x3fffffff] [ 0.341881][ T0] NODE_DATA(1) allocated [mem 0x7ffd7000-0x7ffdbfff] [ 0.458976][ T0] Zone ranges: [ 0.462695][ T0] DMA [mem 0x0000000000001000-0x0000000000ffffff] [ 0.470080][ T0] DMA32 [mem 0x0000000001000000-0x000000007ffdcfff] [ 0.477953][ T0] Normal empty [ 0.482095][ T0] Device empty [ 0.486055][ T0] Movable zone start for each node [ 0.491824][ T0] Early memory node ranges [ 0.496833][ T0] node 0: [mem 0x0000000000001000-0x000000000009efff] [ 0.504794][ T0] node 0: [mem 0x0000000000100000-0x000000003fffffff] [ 0.512725][ T0] node 1: [mem 0x0000000040000000-0x000000007ffdcfff] [ 0.520900][ T0] Zeroed struct page in unavailable ranges: 133 pages [ 0.520914][ T0] Initmem setup node 0 [mem 0x0000000000001000-0x000000003fffffff] [ 0.544822][ T0] Initmem setup node 1 [mem 0x0000000040000000-0x000000007ffdcfff] [ 2.123213][ T0] kasan: KernelAddressSanitizer initialized [ 2.156078][ T0] ACPI: PM-Timer IO Port: 0x608 [ 2.167581][ T0] ACPI: LAPIC_NMI (acpi_id[0xff] dfl dfl lint[0x1]) [ 2.186140][ T0] IOAPIC[0]: apic_id 0, version 17, address 0xfec00000, GSI 0-23 [ 2.205265][ T0] ACPI: INT_SRC_OVR (bus 0 bus_irq 0 global_irq 2 dfl dfl) [ 2.220724][ T0] ACPI: INT_SRC_OVR (bus 0 bus_irq 5 global_irq 5 high level) [ 2.237071][ T0] ACPI: INT_SRC_OVR (bus 0 bus_irq 9 global_irq 9 high level) [ 2.254501][ T0] ACPI: INT_SRC_OVR (bus 0 bus_irq 10 global_irq 10 high level) [ 2.272334][ T0] ACPI: INT_SRC_OVR (bus 0 bus_irq 11 global_irq 11 high level) [ 2.284796][ T0] Using ACPI (MADT) for SMP configuration information [ 2.293449][ T0] ACPI: HPET id: 0x8086a201 base: 0xfed00000 [ 2.301028][ T0] TSC deadline timer available [ 2.306612][ T0] smpboot: Allowing 8 CPUs, 4 hotplug CPUs [ 2.314291][ T0] kvm-guest: KVM setup pv remote TLB flush [ 2.321444][ T0] PM: hibernation: Registered nosave memory: [mem 0x00000000-0x00000fff] [ 2.330193][ T0] PM: hibernation: Registered nosave memory: [mem 0x0009f000-0x0009ffff] [ 2.339307][ T0] PM: hibernation: Registered nosave memory: [mem 0x000a0000-0x000effff] [ 2.348043][ T0] PM: hibernation: Registered nosave memory: [mem 0x000f0000-0x000fffff] [ 2.356996][ T0] [mem 0xc0000000-0xfed1bfff] available for PCI devices [ 2.364175][ T0] Booting paravirtualized kernel on KVM [ 2.370113][ T0] clocksource: refined-jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604462750000 ns [ 2.432668][ T0] setup_percpu: NR_CPUS:64 nr_cpumask_bits:64 nr_cpu_ids:8 nr_node_ids:2 [ 2.460720][ T0] percpu: Embedded 65 pages/cpu s226696 r8192 d31352 u1048576 [ 2.470138][ T0] kvm-guest: stealtime: cpu 0, msr 2ce20a40 [ 2.476640][ T0] kvm-guest: PV spinlocks enabled [ 2.482292][ T0] PV qspinlock hash table entries: 256 (order: 0, 4096 bytes, linear) [ 2.492039][ T0] Built 2 zonelists, mobility grouping on. Total pages: 515942 [ 2.499989][ T0] Policy zone: DMA32 [ 2.504493][ 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 net.ifnames=0 sysctl.kernel.hung_task_all_cpu_backtrace=1 security=selinux lsm=lockdown,yama,safesetid,integrity,selinux,tomoyo,bpf 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 rcupdate.rcu_expedited=1 [ 2.602436][ T0] mem auto-init: stack:off, heap alloc:on, heap free:off [ 3.067959][ T0] Memory: 1503356K/2096620K available (116743K kernel code, 17674K rwdata, 21636K rodata, 2792K init, 23936K bss, 593008K reserved, 0K cma-reserved) [ 3.107853][ T0] Running RCU self tests [ 3.112725][ T0] rcu: Preemptible hierarchical RCU implementation. [ 3.119359][ T0] rcu: RCU lockdep checking is enabled. [ 3.124956][ T0] rcu: RCU restricting CPUs from NR_CPUS=64 to nr_cpu_ids=8. [ 3.132977][ T0] rcu: RCU callback double-/use-after-free debug enabled. [ 3.141283][ T0] rcu: RCU debug extended QS entry/exit. [ 3.146684][ T0] All grace periods are expedited (rcu_expedited). [ 3.153229][ T0] Trampoline variant of Tasks RCU enabled. [ 3.159398][ T0] rcu: RCU calculated value of scheduler-enlistment delay is 10 jiffies. [ 3.168395][ T0] rcu: Adjusting geometry for rcu_fanout_leaf=16, nr_cpu_ids=8 [ 3.188210][ T0] NR_IRQS: 4352, nr_irqs: 488, preallocated irqs: 16 [ 3.211012][ T0] random: get_random_bytes called from start_kernel+0x23b/0x46a with crng_init=0 [ 3.307978][ T0] Console: colour VGA+ 80x25 [ 3.323864][ T0] printk: console [ttyS0] enabled [ 3.323864][ T0] printk: console [ttyS0] enabled [ 3.336160][ T0] printk: bootconsole [earlyser0] disabled [ 3.336160][ T0] printk: bootconsole [earlyser0] disabled [ 3.350017][ T0] Lock dependency validator: Copyright (c) 2006 Red Hat, Inc., Ingo Molnar [ 3.366181][ T0] ... MAX_LOCKDEP_SUBCLASSES: 8 [ 3.374808][ T0] ... MAX_LOCK_DEPTH: 48 [ 3.383246][ T0] ... MAX_LOCKDEP_KEYS: 8192 [ 3.389025][ T0] ... CLASSHASH_SIZE: 4096 [ 3.395022][ T0] ... MAX_LOCKDEP_ENTRIES: 32768 [ 3.400472][ T0] ... MAX_LOCKDEP_CHAINS: 65536 [ 3.405965][ T0] ... CHAINHASH_SIZE: 32768 [ 3.411265][ T0] memory used by lock dependency info: 6301 kB [ 3.417737][ T0] memory used for stack traces: 4224 kB [ 3.423663][ T0] per task-struct memory footprint: 1920 bytes [ 3.431378][ T0] mempolicy: Enabling automatic NUMA balancing. Configure with numa_balancing= or the kernel.numa_balancing sysctl [ 3.445212][ T0] ACPI: Core revision 20200717 [ 3.457974][ T0] clocksource: hpet: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604467 ns [ 3.477030][ T0] APIC: Switch to symmetric I/O mode setup [ 3.491127][ T0] x2apic enabled [ 3.497712][ T0] Switched APIC routing to physical x2apic. [ 3.504076][ T0] kvm-guest: setup PV IPIs [ 3.526109][ T0] ..TIMER: vector=0x30 apic1=0 pin1=2 apic2=-1 pin2=-1 [ 3.534418][ T0] clocksource: tsc-early: mask: 0xffffffffffffffff max_cycles: 0x1cd4c92266a, max_idle_ns: 440795223404 ns [ 3.547510][ T0] Calibrating delay loop (skipped) preset value.. 4000.32 BogoMIPS (lpj=20001640) [ 3.558193][ T0] pid_max: default: 32768 minimum: 301 [ 3.570089][ T0] LSM: Security Framework initializing [ 3.577043][ T0] LSM: security= is ignored because it is superseded by lsm= [ 3.587607][ T0] Yama: becoming mindful. [ 3.598475][ T0] SELinux: Initializing. [ 3.605487][ T0] TOMOYO Linux initialized [ 3.607751][ T0] LSM support for eBPF active [ 3.632639][ T0] Dentry cache hash table entries: 262144 (order: 9, 2097152 bytes, vmalloc) [ 3.647308][ T0] Inode-cache hash table entries: 131072 (order: 8, 1048576 bytes, vmalloc) [ 3.656663][ T0] Mount-cache hash table entries: 4096 (order: 3, 32768 bytes, vmalloc) [ 3.657139][ T0] Mountpoint-cache hash table entries: 4096 (order: 3, 32768 bytes, vmalloc) [ 3.702149][ T0] x86/cpu: User Mode Instruction Prevention (UMIP) activated [ 3.717025][ T0] Last level iTLB entries: 4KB 0, 2MB 0, 4MB 0 [ 3.724194][ T0] Last level dTLB entries: 4KB 0, 2MB 0, 4MB 0, 1GB 0 [ 3.727522][ T0] Spectre V1 : Mitigation: usercopy/swapgs barriers and __user pointer sanitization [ 3.737164][ T0] Spectre V2 : Spectre mitigation: kernel not compiled with retpoline; no mitigation available! [ 3.737242][ T0] Speculative Store Bypass: Mitigation: Speculative Store Bypass disabled via prctl [ 3.757937][ T0] TAA: Mitigation: Clear CPU buffers [ 3.766957][ T0] MDS: Mitigation: Clear CPU buffers [ 3.799572][ T0] Freeing SMP alternatives memory: 104K [ 3.901671][ T1] smpboot: CPU0: Intel(R) Xeon(R) CPU @ 2.00GHz (family: 0x6, model: 0x55, stepping: 0x3) [ 3.922046][ T1] Performance Events: unsupported p6 CPU model 85 no PMU driver, software events only. [ 3.930210][ T1] rcu: Hierarchical SRCU implementation. [ 3.941412][ T1] dyndbg: Ignore empty _ddebug table in a CONFIG_DYNAMIC_DEBUG_CORE build [ 3.951254][ T1] NMI watchdog: Perf NMI watchdog permanently disabled [ 3.970825][ T1] smp: Bringing up secondary CPUs ... [ 3.995621][ T1] x86: Booting SMP configuration: [ 3.997424][ T1] .... node #0, CPUs: #1 [ 0.298742][ T0] kvm-clock: cpu 1, msr becf041, secondary cpu clock [ 4.041031][ T15] kvm-guest: stealtime: cpu 1, msr 2cf20a40 [ 4.062122][ 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. [ 4.067941][ T1] TAA CPU bug present and SMT on, data leak possible. See https://www.kernel.org/doc/html/latest/admin-guide/hw-vuln/tsx_async_abort.html for more details. [ 4.089538][ T1] #2 [ 0.298742][ T0] kvm-clock: cpu 2, msr becf081, secondary cpu clock [ 4.113088][ T20] kvm-guest: stealtime: cpu 2, msr 2d020a40 [ 4.131013][ T1] #3 [ 0.298742][ T0] kvm-clock: cpu 3, msr becf0c1, secondary cpu clock [ 4.153588][ T25] kvm-guest: stealtime: cpu 3, msr 2d120a40 [ 4.157329][ T1] smp: Brought up 2 nodes, 4 CPUs [ 4.167062][ T1] smpboot: Max logical packages: 2 [ 4.173777][ T1] smpboot: Total of 4 processors activated (16001.31 BogoMIPS) [ 4.210449][ T1] devtmpfs: initialized [ 4.219547][ T1] x86/mm: Memory block size: 128MB [ 4.289091][ T1] clocksource: jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604462750000 ns [ 4.290530][ T33] kworker/u17:0 (33) used greatest stack depth: 27656 bytes left [ 4.298621][ T1] futex hash table entries: 2048 (order: 6, 262144 bytes, vmalloc) [ 4.323730][ T1] xor: automatically using best checksumming function avx [ 4.347485][ T1] PM: RTC time: 20:36:38, date: 2020-08-16 [ 4.375547][ T1] NET: Registered protocol family 16 [ 4.401697][ T1] audit: initializing netlink subsys (disabled) [ 4.418889][ T39] audit: type=2000 audit(1597610199.007:1): state=initialized audit_enabled=0 res=1 [ 4.427952][ T1] thermal_sys: Registered thermal governor 'step_wise' [ 4.427952][ T1] thermal_sys: Registered thermal governor 'user_space' [ 4.447182][ T1] cpuidle: using governor menu [ 4.477131][ T1] NET: Registered protocol family 42 [ 4.511621][ T1] ACPI: bus type PCI registered [ 4.528174][ T1] dca service started, version 1.12.1 [ 4.539372][ T1] PCI: MMCONFIG for domain 0000 [bus 00-ff] at [mem 0xb0000000-0xbfffffff] (base 0xb0000000) [ 4.547140][ T1] PCI: MMCONFIG at [mem 0xb0000000-0xbfffffff] reserved in E820 [ 4.779784][ T1] PCI: Using configuration type 1 for base access [ 4.843387][ T111] kworker/u17:1 (111) used greatest stack depth: 27472 bytes left [ 5.219206][ T1] HugeTLB registered 2.00 MiB page size, pre-allocated 0 pages [ 5.317920][ T1] cryptd: max_cpu_qlen set to 1000 [ 5.557227][ T1] raid6: avx512x4 gen() 15216 MB/s [ 5.737027][ T1] raid6: avx512x4 xor() 6963 MB/s [ 5.906948][ T1] raid6: avx512x2 gen() 14863 MB/s [ 6.072908][ T1] raid6: avx512x2 xor() 6966 MB/s [ 6.238992][ T1] raid6: avx512x1 gen() 8933 MB/s [ 6.410574][ T1] raid6: avx512x1 xor() 3814 MB/s [ 6.580979][ T1] raid6: avx2x4 gen() 11326 MB/s [ 6.752977][ T1] raid6: avx2x4 xor() 6051 MB/s [ 6.921452][ T1] raid6: avx2x2 gen() 8137 MB/s [ 7.091559][ T1] raid6: avx2x2 xor() 3276 MB/s [ 7.262207][ T1] raid6: avx2x1 gen() 5089 MB/s [ 7.432186][ T1] raid6: avx2x1 xor() 1897 MB/s [ 7.607112][ T1] raid6: sse2x4 gen() 5983 MB/s [ 7.772626][ T1] raid6: sse2x4 xor() 3131 MB/s [ 7.942476][ T1] raid6: sse2x2 gen() 3783 MB/s [ 8.111872][ T1] raid6: sse2x2 xor() 1785 MB/s [ 8.282281][ T1] raid6: sse2x1 gen() 2399 MB/s [ 8.453428][ T1] raid6: sse2x1 xor() 893 MB/s [ 8.456973][ T1] raid6: using algorithm avx512x4 gen() 15216 MB/s [ 8.463658][ T1] raid6: .... xor() 6963 MB/s, rmw enabled [ 8.467247][ T1] raid6: using avx512x2 recovery algorithm [ 8.491255][ T1] ACPI: Added _OSI(Module Device) [ 8.496984][ T1] ACPI: Added _OSI(Processor Device) [ 8.503010][ T1] ACPI: Added _OSI(3.0 _SCP Extensions) [ 8.506976][ T1] ACPI: Added _OSI(Processor Aggregator Device) [ 8.514250][ T1] ACPI: Added _OSI(Linux-Dell-Video) [ 8.516989][ T1] ACPI: Added _OSI(Linux-Lenovo-NV-HDMI-Audio) [ 8.523800][ T1] ACPI: Added _OSI(Linux-HPI-Hybrid-Graphics) [ 8.605074][ T1] ACPI: 2 ACPI AML tables successfully acquired and loaded [ 8.716886][ T1] ACPI: Interpreter enabled [ 8.724616][ T1] ACPI: (supports S0 S3 S4 S5) [ 8.727795][ T1] ACPI: Using IOAPIC for interrupt routing [ 8.736931][ T1] PCI: Using host bridge windows from ACPI; if necessary, use "pci=nocrs" and report a bug [ 8.741508][ T1] ACPI: Enabled 3 GPEs in block 00 to 3F [ 8.874809][ T1] ACPI: PCI Root Bridge [PCI0] (domain 0000 [bus 00-ff]) [ 8.888127][ T1] acpi PNP0A08:00: _OSC: OS supports [ExtendedConfig ASPM ClockPM Segments MSI HPX-Type3] [ 8.902690][ T1] acpi PNP0A08:00: _OSC: platform does not support [LTR] [ 8.910423][ T1] acpi PNP0A08:00: _OSC: OS now controls [PCIeHotplug PME AER PCIeCapability] [ 8.937097][ T1] PCI host bridge to bus 0000:00 [ 8.937097][ T1] pci_bus 0000:00: Unknown NUMA node; performance will be reduced [ 8.957035][ T1] pci_bus 0000:00: root bus resource [io 0x0000-0x0cf7 window] [ 8.966249][ T1] pci_bus 0000:00: root bus resource [io 0x0d00-0xffff window] [ 8.966979][ T1] pci_bus 0000:00: root bus resource [mem 0x000a0000-0x000bffff window] [ 8.986992][ T1] pci_bus 0000:00: root bus resource [mem 0x80000000-0xafffffff window] [ 8.997122][ T1] pci_bus 0000:00: root bus resource [mem 0xc0000000-0xfebfffff window] [ 9.006602][ T1] pci_bus 0000:00: root bus resource [mem 0x580000000-0xd7fffffff window] [ 9.017248][ T1] pci_bus 0000:00: root bus resource [bus 00-ff] [ 9.027572][ T1] pci 0000:00:00.0: [8086:29c0] type 00 class 0x060000 [ 9.050211][ T1] pci 0000:00:01.0: [1af4:1050] type 00 class 0x030000 [ 9.096807][ T1] pci 0000:00:01.0: reg 0x10: [mem 0xfe000000-0xfe7fffff pref] [ 9.141716][ T1] pci 0000:00:01.0: reg 0x18: [mem 0xfe800000-0xfe803fff 64bit pref] [ 9.166931][ T1] pci 0000:00:01.0: reg 0x20: [mem 0xfebf4000-0xfebf4fff] [ 9.206931][ T1] pci 0000:00:01.0: reg 0x30: [mem 0xfebe0000-0xfebeffff pref] [ 9.345195][ T1] pci 0000:00:02.0: [1af4:1000] type 00 class 0x020000 [ 9.366245][ T1] pci 0000:00:02.0: reg 0x10: [io 0xc680-0xc69f] [ 9.404520][ T1] pci 0000:00:02.0: reg 0x14: [mem 0xfebf5000-0xfebf5fff] [ 9.462535][ T1] pci 0000:00:02.0: reg 0x20: [mem 0xfe804000-0xfe807fff 64bit pref] [ 9.489156][ T1] pci 0000:00:02.0: reg 0x30: [mem 0xfeb40000-0xfeb7ffff pref] [ 9.568709][ T1] pci 0000:00:03.0: [8086:100e] type 00 class 0x020000 [ 9.615005][ T1] pci 0000:00:03.0: reg 0x10: [mem 0xfebc0000-0xfebdffff] [ 9.651594][ T1] pci 0000:00:03.0: reg 0x14: [io 0xc600-0xc63f] [ 9.696047][ T1] pci 0000:00:03.0: reg 0x30: [mem 0xfeb80000-0xfebbffff pref] [ 9.768019][ T1] pci 0000:00:04.0: [1274:5000] type 00 class 0x040100 [ 9.802622][ T1] pci 0000:00:04.0: reg 0x10: [io 0xc400-0xc4ff] [ 9.862022][ T1] pci 0000:00:05.0: [8086:2415] type 00 class 0x040100 [ 9.892033][ T1] pci 0000:00:05.0: reg 0x10: [io 0xc000-0xc3ff] [ 9.918494][ T1] pci 0000:00:05.0: reg 0x14: [io 0xc500-0xc5ff] [ 9.951360][ T1] pci 0000:00:06.0: [8086:2668] type 00 class 0x040300 [ 9.980930][ T1] pci 0000:00:06.0: reg 0x10: [mem 0xfebf0000-0xfebf3fff] [ 10.040389][ T1] pci 0000:00:07.0: [1af4:1009] type 00 class 0x000200 [ 10.063096][ T1] pci 0000:00:07.0: reg 0x10: [io 0xc6a0-0xc6bf] [ 10.079696][ T1] pci 0000:00:07.0: reg 0x14: [mem 0xfebf6000-0xfebf6fff] [ 10.095534][ T1] pci 0000:00:07.0: reg 0x20: [mem 0xfe808000-0xfe80bfff 64bit pref] [ 10.140199][ T1] pci 0000:00:1d.0: [8086:2934] type 00 class 0x0c0300 [ 10.163616][ T1] pci 0000:00:1d.0: reg 0x20: [io 0xc6c0-0xc6df] [ 10.182409][ T1] pci 0000:00:1d.1: [8086:2935] type 00 class 0x0c0300 [ 10.191885][ T1] pci 0000:00:1d.1: reg 0x20: [io 0xc6e0-0xc6ff] [ 10.204530][ T1] pci 0000:00:1d.2: [8086:2936] type 00 class 0x0c0300 [ 10.222903][ T1] pci 0000:00:1d.2: reg 0x20: [io 0xc700-0xc71f] [ 10.241729][ T1] pci 0000:00:1d.7: [8086:293a] type 00 class 0x0c0320 [ 10.248439][ T1] pci 0000:00:1d.7: reg 0x10: [mem 0xfebf7000-0xfebf7fff] [ 10.270051][ T1] pci 0000:00:1f.0: [8086:2918] type 00 class 0x060100 [ 10.283806][ T1] pci 0000:00:1f.0: quirk: [io 0x0600-0x067f] claimed by ICH6 ACPI/GPIO/TCO [ 10.303241][ T1] pci 0000:00:1f.2: [8086:2922] type 00 class 0x010601 [ 10.317553][ T1] pci 0000:00:1f.2: reg 0x20: [io 0xc720-0xc73f] [ 10.325304][ T1] pci 0000:00:1f.2: reg 0x24: [mem 0xfebf8000-0xfebf8fff] [ 10.343718][ T1] pci 0000:00:1f.3: [8086:2930] type 00 class 0x0c0500 [ 10.352057][ T1] pci 0000:00:1f.3: reg 0x20: [io 0x0700-0x073f] [ 10.407029][ T1] ACPI: PCI Interrupt Link [LNKA] (IRQs 5 *10 11) [ 10.420169][ T1] ACPI: PCI Interrupt Link [LNKB] (IRQs 5 *10 11) [ 10.428994][ T1] ACPI: PCI Interrupt Link [LNKC] (IRQs 5 10 *11) [ 10.439328][ T1] ACPI: PCI Interrupt Link [LNKD] (IRQs 5 10 *11) [ 10.448066][ T1] ACPI: PCI Interrupt Link [LNKE] (IRQs 5 *10 11) [ 10.458138][ T1] ACPI: PCI Interrupt Link [LNKF] (IRQs 5 *10 11) [ 10.466863][ T1] ACPI: PCI Interrupt Link [LNKG] (IRQs 5 10 *11) [ 10.478889][ T1] ACPI: PCI Interrupt Link [LNKH] (IRQs 5 10 *11) [ 10.486270][ T1] ACPI: PCI Interrupt Link [GSIA] (IRQs *16) [ 10.497257][ T1] ACPI: PCI Interrupt Link [GSIB] (IRQs *17) [ 10.505142][ T1] ACPI: PCI Interrupt Link [GSIC] (IRQs *18) [ 10.507325][ T1] ACPI: PCI Interrupt Link [GSID] (IRQs *19) [ 10.513936][ T1] ACPI: PCI Interrupt Link [GSIE] (IRQs *20) [ 10.527295][ T1] ACPI: PCI Interrupt Link [GSIF] (IRQs *21) [ 10.533253][ T1] ACPI: PCI Interrupt Link [GSIG] (IRQs *22) [ 10.537320][ T1] ACPI: PCI Interrupt Link [GSIH] (IRQs *23) [ 10.601598][ T1] iommu: Default domain type: Translated [ 10.618466][ T1] pci 0000:00:01.0: vgaarb: setting as boot VGA device [ 10.626435][ T1] pci 0000:00:01.0: vgaarb: VGA device added: decodes=io+mem,owns=io+mem,locks=none [ 10.637062][ T1] pci 0000:00:01.0: vgaarb: bridge control possible [ 10.643793][ T1] vgaarb: loaded [ 10.670386][ T1] SCSI subsystem initialized [ 10.693549][ T1] ACPI: bus type USB registered [ 10.698285][ T1] usbcore: registered new interface driver usbfs [ 10.709023][ T1] usbcore: registered new interface driver hub [ 10.717652][ T1] usbcore: registered new device driver usb [ 10.732142][ T1] mc: Linux media interface: v0.10 [ 10.737455][ T1] videodev: Linux video capture interface: v2.00 [ 10.751018][ T1] pps_core: LinuxPPS API ver. 1 registered [ 10.756968][ T1] pps_core: Software ver. 5.3.6 - Copyright 2005-2007 Rodolfo Giometti [ 10.767272][ T1] PTP clock support registered [ 10.775315][ T1] EDAC MC: Ver: 3.0.0 [ 10.791902][ T1] Advanced Linux Sound Architecture Driver Initialized. [ 10.812627][ T1] Bluetooth: Core ver 2.22 [ 10.817597][ T1] NET: Registered protocol family 31 [ 10.823000][ T1] Bluetooth: HCI device and connection manager initialized [ 10.827351][ T1] Bluetooth: HCI socket layer initialized [ 10.833308][ T1] Bluetooth: L2CAP socket layer initialized [ 10.837362][ T1] Bluetooth: SCO socket layer initialized [ 10.843562][ T1] NET: Registered protocol family 8 [ 10.857027][ T1] NET: Registered protocol family 20 [ 10.863825][ T1] NetLabel: Initializing [ 10.866974][ T1] NetLabel: domain hash size = 128 [ 10.872285][ T1] NetLabel: protocols = UNLABELED CIPSOv4 CALIPSO [ 10.883300][ T1] NetLabel: unlabeled traffic allowed by default [ 10.902612][ T1] nfc: nfc_init: NFC Core ver 0.1 [ 10.918130][ T1] NET: Registered protocol family 39 [ 10.940617][ T1] PCI: Using ACPI for IRQ routing [ 11.733751][ T1] hpet0: at MMIO 0xfed00000, IRQs 2, 8, 0 [ 11.737007][ T1] hpet0: 3 comparators, 64-bit 100.000000 MHz counter [ 11.757027][ T1] clocksource: Switched to clocksource kvm-clock [ 14.896025][ T1] VFS: Disk quotas dquot_6.6.0 [ 14.920539][ T1] VFS: Dquot-cache hash table entries: 512 (order 0, 4096 bytes) [ 14.943407][ T1] FS-Cache: Loaded [ 14.971475][ T1] CacheFiles: Loaded [ 14.992442][ T1] TOMOYO: 2.6.0 [ 15.001037][ T1] Mandatory Access Control activated. [ 15.016504][ T1] pnp: PnP ACPI init [ 15.061108][ T1] pnp: PnP ACPI: found 6 devices [ 15.162985][ T1] clocksource: acpi_pm: mask: 0xffffff max_cycles: 0xffffff, max_idle_ns: 2085701024 ns [ 15.176516][ T1] NET: Registered protocol family 2 [ 15.198560][ T1] tcp_listen_portaddr_hash hash table entries: 1024 (order: 4, 81920 bytes, vmalloc) [ 15.211037][ T1] TCP established hash table entries: 16384 (order: 5, 131072 bytes, vmalloc) [ 15.226651][ T1] TCP bind hash table entries: 16384 (order: 8, 1179648 bytes, vmalloc) [ 15.243516][ T1] TCP: Hash tables configured (established 16384 bind 16384) [ 15.260308][ T1] MPTCP token hash table entries: 2048 (order: 5, 180224 bytes, vmalloc) [ 15.278378][ T1] UDP hash table entries: 1024 (order: 5, 163840 bytes, vmalloc) [ 15.290597][ T1] UDP-Lite hash table entries: 1024 (order: 5, 163840 bytes, vmalloc) [ 15.307273][ T1] NET: Registered protocol family 1 [ 15.329909][ T1] RPC: Registered named UNIX socket transport module. [ 15.342004][ T1] RPC: Registered udp transport module. [ 15.348978][ T1] RPC: Registered tcp transport module. [ 15.356415][ T1] RPC: Registered tcp NFSv4.1 backchannel transport module. [ 15.376186][ T1] NET: Registered protocol family 44 [ 15.389118][ T1] pci_bus 0000:00: resource 4 [io 0x0000-0x0cf7 window] [ 15.398681][ T1] pci_bus 0000:00: resource 5 [io 0x0d00-0xffff window] [ 15.408529][ T1] pci_bus 0000:00: resource 6 [mem 0x000a0000-0x000bffff window] [ 15.418235][ T1] pci_bus 0000:00: resource 7 [mem 0x80000000-0xafffffff window] [ 15.431476][ T1] pci_bus 0000:00: resource 8 [mem 0xc0000000-0xfebfffff window] [ 15.442284][ T1] pci_bus 0000:00: resource 9 [mem 0x580000000-0xd7fffffff window] [ 15.456376][ T1] pci 0000:00:01.0: Video device with shadowed ROM at [mem 0x000c0000-0x000dffff] [ 15.469900][ T1] pci 0000:00:01.0: pci_fixup_video+0x0/0x270 took 13527 usecs [ 15.503220][ T1] PCI Interrupt Link [GSIA] enabled at IRQ 16 [ 15.532651][ T1] pci 0000:00:1d.0: quirk_usb_early_handoff+0x0/0x105b took 48079 usecs [ 15.559438][ T1] PCI Interrupt Link [GSIB] enabled at IRQ 17 [ 15.580199][ T1] pci 0000:00:1d.1: quirk_usb_early_handoff+0x0/0x105b took 34603 usecs [ 15.611657][ T1] PCI Interrupt Link [GSIC] enabled at IRQ 18 [ 15.630268][ T1] pci 0000:00:1d.2: quirk_usb_early_handoff+0x0/0x105b took 34606 usecs [ 15.652283][ T1] PCI Interrupt Link [GSID] enabled at IRQ 19 [ 15.674821][ T1] pci 0000:00:1d.7: quirk_usb_early_handoff+0x0/0x105b took 33026 usecs [ 15.688000][ T1] PCI: CLS 0 bytes, default 64 [ 15.711763][ T1] PCI-DMA: Using software bounce buffering for IO (SWIOTLB) [ 15.719339][ T1] software IO TLB: mapped [mem 0x7ac00000-0x7ec00000] (64MB) [ 15.740348][ T1] kvm: no hardware support [ 15.745576][ T1] has_svm: not amd or hygon [ 15.750981][ T1] kvm: no hardware support [ 15.756608][ T1] clocksource: tsc: mask: 0xffffffffffffffff max_cycles: 0x1cd4c92266a, max_idle_ns: 440795223404 ns [ 15.771519][ T1] clocksource: Switched to clocksource tsc [ 15.780229][ T1] mce: Machine check injector initialized [ 15.803075][ T1] check: Scanning for low memory corruption every 60 seconds [ 15.966230][ T1] Initialise system trusted keyrings [ 15.979170][ T1] workingset: timestamp_bits=40 max_order=19 bucket_order=0 [ 15.993612][ T1] zbud: loaded [ 16.013527][ T1] DLM installed [ 16.024234][ T1] squashfs: version 4.0 (2009/01/31) Phillip Lougher [ 16.039865][ T1] FS-Cache: Netfs 'nfs' registered for caching [ 16.054053][ T1] NFS: Registering the id_resolver key type [ 16.061070][ T1] Key type id_resolver registered [ 16.074569][ T1] Key type id_legacy registered [ 16.083466][ T1] nfs4filelayout_init: NFSv4 File Layout Driver Registering... [ 16.095888][ T1] Installing knfsd (copyright (C) 1996 okir@monad.swb.de). [ 16.126014][ T1] FS-Cache: Netfs 'cifs' registered for caching [ 16.141313][ T1] Key type cifs.spnego registered [ 16.152181][ T1] Key type cifs.idmap registered [ 16.160748][ T1] ntfs: driver 2.1.32 [Flags: R/W]. [ 16.172070][ T1] fuse: init (API version 7.31) [ 16.188556][ T1] JFS: nTxBlock = 8192, nTxLock = 65536 [ 16.248570][ T1] SGI XFS with ACLs, security attributes, realtime, quota, no debug enabled [ 16.278121][ T1] 9p: Installing v9fs 9p2000 file system support [ 16.290954][ T1] FS-Cache: Netfs '9p' registered for caching [ 16.304427][ T1] ocfs2: Registered cluster interface o2cb [ 16.315182][ T1] ocfs2: Registered cluster interface user [ 16.326042][ T1] OCFS2 User DLM kernel interface loaded [ 16.367972][ T1] gfs2: GFS2 installed [ 16.399248][ T1] FS-Cache: Netfs 'ceph' registered for caching [ 16.406644][ T1] ceph: loaded (mds proto 32) [ 16.449710][ T1] NET: Registered protocol family 38 [ 16.460865][ T1] async_tx: api initialized (async) [ 16.469931][ T1] Key type asymmetric registered [ 16.477589][ T1] Asymmetric key parser 'x509' registered [ 16.485699][ T1] Asymmetric key parser 'pkcs8' registered [ 16.492461][ T1] Key type pkcs7_test registered [ 16.499103][ T1] Asymmetric key parser 'tpm_parser' registered [ 16.508310][ T1] Block layer SCSI generic (bsg) driver version 0.4 loaded (major 243) [ 16.522312][ T1] io scheduler mq-deadline registered [ 16.530482][ T1] io scheduler kyber registered [ 16.538751][ T1] io scheduler bfq registered [ 16.576506][ T1] hgafb: HGA card not detected. [ 16.585182][ T1] hgafb: probe of hgafb.0 failed with error -22 [ 16.598099][ T1] usbcore: registered new interface driver udlfb [ 16.621799][ T1] uvesafb: failed to execute /sbin/v86d [ 16.629959][ T1] uvesafb: make sure that the v86d helper is installed and executable [ 16.643670][ T1] uvesafb: Getting VBE info block failed (eax=0x4f00, err=-2) [ 16.654404][ T1] uvesafb: vbe_init() failed with -22 [ 16.661557][ T1] uvesafb: probe of uvesafb.0 failed with error -22 [ 16.672188][ T1] vga16fb: mapped to 0x000000007257d086 [ 25.054103][ T1] Console: switching to colour frame buffer device 80x30 [ 33.869193][ T1] fb0: VGA16 VGA frame buffer device [ 33.898044][ T1] input: Power Button as /devices/LNXSYSTM:00/LNXPWRBN:00/input/input0 [ 33.916714][ T1] ACPI: Power Button [PWRF] [ 34.112738][ T32] ================================================================== [ 34.120723][ T32] BUG: KASAN: global-out-of-bounds in internal_create_group+0x9d8/0xb20 [ 34.120723][ T32] Read of size 8 at addr ffffffff8a2e73d0 by task kworker/u17:1/32 [ 34.120723][ T32] [ 34.120723][ T32] CPU: 0 PID: 32 Comm: kworker/u17:1 Not tainted 5.8.0-syzkaller #0 [ 34.120723][ T32] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS rel-1.12.0-59-gc9ba5276e321-prebuilt.qemu.org 04/01/2014 [ 34.120723][ T32] Workqueue: events_unbound async_run_entry_fn [ 34.120723][ T32] Call Trace: [ 34.120723][ T32] dump_stack+0x18f/0x20d [ 34.120723][ T32] ? internal_create_group+0x9d8/0xb20 [ 34.120723][ T32] ? internal_create_group+0x9d8/0xb20 [ 34.120723][ T32] print_address_description.constprop.0.cold+0x5/0x497 [ 34.120723][ T32] ? vprintk_func+0x97/0x1a6 [ 34.120723][ T32] ? internal_create_group+0x9d8/0xb20 [ 34.120723][ T32] ? internal_create_group+0x9d8/0xb20 [ 34.120723][ T32] kasan_report.cold+0x1f/0x37 [ 34.120723][ T32] ? internal_create_group+0x9d8/0xb20 [ 34.120723][ T32] ? state_show+0xf0/0xf0 [ 34.120723][ T32] internal_create_group+0x9d8/0xb20 [ 34.120723][ T32] ? sysfs_remove_group+0x170/0x170 [ 34.120723][ T32] internal_create_groups.part.0+0x90/0x140 [ 34.120723][ T32] sysfs_create_groups+0x25/0x50 [ 34.120723][ T32] device_add+0x7fd/0x1c40 [ 34.120723][ T32] ? devlink_add_symlinks+0x450/0x450 [ 34.120723][ T32] ? lock_release+0x8e0/0x8e0 [ 34.120723][ T32] ? lock_downgrade+0x830/0x830 [ 34.120723][ T32] ? __schedule+0x88e/0x21e0 [ 34.120723][ T32] ? nd_synchronize+0x20/0x20 [ 34.120723][ T32] nd_async_device_register+0x12/0x80 [ 34.120723][ T32] async_run_entry_fn+0x121/0x530 [ 34.120723][ T32] process_one_work+0x94c/0x1670 [ 34.120723][ T32] ? lock_release+0x8e0/0x8e0 [ 34.120723][ T32] ? pwq_dec_nr_in_flight+0x2d0/0x2d0 [ 34.120723][ T32] ? rwlock_bug.part.0+0x90/0x90 [ 34.120723][ T32] worker_thread+0x64c/0x1120 [ 34.120723][ T32] ? process_one_work+0x1670/0x1670 [ 34.120723][ T32] kthread+0x3b5/0x4a0 [ 34.120723][ T32] ? __kthread_bind_mask+0xc0/0xc0 [ 34.120723][ T32] ? __kthread_bind_mask+0xc0/0xc0 [ 34.120723][ T32] ret_from_fork+0x1f/0x30 [ 34.120723][ T32] [ 34.120723][ T32] The buggy address belongs to the variable: [ 34.120723][ T32] nvdimm_firmware_attributes+0x10/0x40 [ 34.120723][ T32] [ 34.120723][ T32] Memory state around the buggy address: [ 34.120723][ T32] ffffffff8a2e7280: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 34.120723][ T32] ffffffff8a2e7300: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 34.120723][ T32] >ffffffff8a2e7380: 00 00 00 00 f9 f9 f9 f9 00 00 f9 f9 f9 f9 f9 f9 [ 34.120723][ T32] ^ [ 34.120723][ T32] ffffffff8a2e7400: 00 00 00 00 00 00 00 f9 f9 f9 f9 f9 00 00 00 00 [ 34.120723][ T32] ffffffff8a2e7480: 00 00 00 f9 f9 f9 f9 f9 00 00 00 00 00 00 00 f9 [ 34.120723][ T32] ================================================================== [ 34.120723][ T32] Disabling lock debugging due to kernel taint [ 34.464800][ T32] Kernel panic - not syncing: panic_on_warn set ... [ 34.471204][ T32] CPU: 0 PID: 32 Comm: kworker/u17:1 Tainted: G B 5.8.0-syzkaller #0 [ 34.471204][ T32] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS rel-1.12.0-59-gc9ba5276e321-prebuilt.qemu.org 04/01/2014 [ 34.471204][ T32] Workqueue: events_unbound async_run_entry_fn [ 34.471204][ T32] Call Trace: [ 34.471204][ T32] dump_stack+0x18f/0x20d [ 34.471204][ T32] ? internal_create_group+0x8f0/0xb20 [ 34.471204][ T32] panic+0x2e3/0x75c [ 34.471204][ T32] ? __warn_printk+0xf3/0xf3 [ 34.471204][ T32] ? preempt_schedule_common+0x59/0xc0 [ 34.471204][ T32] ? internal_create_group+0x9d8/0xb20 [ 34.471204][ T32] ? preempt_schedule_thunk+0x16/0x18 [ 34.471204][ T32] ? trace_hardirqs_on+0x55/0x220 [ 34.471204][ T32] ? internal_create_group+0x9d8/0xb20 [ 34.471204][ T32] ? internal_create_group+0x9d8/0xb20 [ 34.471204][ T32] end_report+0x4d/0x53 [ 34.471204][ T32] kasan_report.cold+0xd/0x37 [ 34.471204][ T32] ? internal_create_group+0x9d8/0xb20 [ 34.471204][ T32] ? state_show+0xf0/0xf0 [ 34.471204][ T32] internal_create_group+0x9d8/0xb20 [ 34.471204][ T32] ? sysfs_remove_group+0x170/0x170 [ 34.471204][ T32] internal_create_groups.part.0+0x90/0x140 [ 34.471204][ T32] sysfs_create_groups+0x25/0x50 [ 34.471204][ T32] device_add+0x7fd/0x1c40 [ 34.471204][ T32] ? devlink_add_symlinks+0x450/0x450 [ 34.471204][ T32] ? lock_release+0x8e0/0x8e0 [ 34.471204][ T32] ? lock_downgrade+0x830/0x830 [ 34.471204][ T32] ? __schedule+0x88e/0x21e0 [ 34.471204][ T32] ? nd_synchronize+0x20/0x20 [ 34.471204][ T32] nd_async_device_register+0x12/0x80 [ 34.471204][ T32] async_run_entry_fn+0x121/0x530 [ 34.471204][ T32] process_one_work+0x94c/0x1670 [ 34.471204][ T32] ? lock_release+0x8e0/0x8e0 [ 34.471204][ T32] ? pwq_dec_nr_in_flight+0x2d0/0x2d0 [ 34.471204][ T32] ? rwlock_bug.part.0+0x90/0x90 [ 34.471204][ T32] worker_thread+0x64c/0x1120 [ 34.471204][ T32] ? process_one_work+0x1670/0x1670 [ 34.471204][ T32] kthread+0x3b5/0x4a0 [ 34.471204][ T32] ? __kthread_bind_mask+0xc0/0xc0 [ 34.471204][ T32] ? __kthread_bind_mask+0xc0/0xc0 [ 34.471204][ T32] ret_from_fork+0x1f/0x30 [ 34.471204][ T32] Kernel Offset: disabled [ 34.471204][ T32] Rebooting in 86400 seconds..