[ 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 [ 0.000053][ T0] kvm-clock: cpu 0, msr becc001, primary cpu clock [ 0.000053][ T0] kvm-clock: using sched offset of 22155963246 cycles [ 0.020453][ T0] clocksource: kvm-clock: mask: 0xffffffffffffffff max_cycles: 0x1cd42e4dffb, max_idle_ns: 881590591483 ns [ 0.089998][ T0] tsc: Detected 2000.164 MHz processor [ 0.152534][ T0] last_pfn = 0x7ffdd max_arch_pfn = 0x400000000 [ 0.221562][ T0] x86/PAT: Configuration [0-7]: WB WC UC- UC WB WP UC- WT [ 0.353031][ T0] found SMP MP-table at [mem 0x000f5a40-0x000f5a4f] [ 0.442049][ T0] check: Scanning 1 areas for low memory corruption [ 0.536084][ T0] ACPI: Early table checksum verification disabled [ 0.604032][ T0] ACPI: RSDP 0x00000000000F5870 000014 (v00 BOCHS ) [ 0.678617][ T0] ACPI: RSDT 0x000000007FFE1F9D 000040 (v01 BOCHS BXPCRSDT 00000001 BXPC 00000001) [ 0.748199][ T0] ACPI: FACP 0x000000007FFE1860 0000F4 (v03 BOCHS BXPCFACP 00000001 BXPC 00000001) [ 0.810364][ T0] ACPI: DSDT 0x000000007FFDF040 002820 (v01 BOCHS BXPCDSDT 00000001 BXPC 00000001) [ 0.874460][ T0] ACPI: FACS 0x000000007FFDF000 000040 [ 0.905872][ T0] ACPI: APIC 0x000000007FFE1954 0000B0 (v01 BOCHS BXPCAPIC 00000001 BXPC 00000001) [ 0.951641][ T0] ACPI: HPET 0x000000007FFE1A04 000038 (v01 BOCHS BXPCHPET 00000001 BXPC 00000001) [ 0.986371][ T0] ACPI: SRAT 0x000000007FFE1A3C 000178 (v01 BOCHS BXPCSRAT 00000001 BXPC 00000001) [ 1.035702][ T0] ACPI: MCFG 0x000000007FFE1BB4 00003C (v01 BOCHS BXPCMCFG 00000001 BXPC 00000001) [ 1.114953][ T0] ACPI: SSDT 0x000000007FFE1BF0 0002CD (v01 BOCHS NVDIMM 00000001 BXPC 00000001) [ 1.215919][ T0] ACPI: NFIT 0x000000007FFE1EBD 0000E0 (v01 BOCHS BXPCNFIT 00000001 BXPC 00000001) [ 1.347424][ T0] SRAT: PXM 0 -> APIC 0x00 -> Node 0 [ 1.401104][ T0] SRAT: PXM 0 -> APIC 0x01 -> Node 0 [ 1.450173][ T0] SRAT: PXM 0 -> APIC 0x02 -> Node 0 [ 1.497207][ T0] SRAT: PXM 0 -> APIC 0x03 -> Node 0 [ 1.554596][ T0] SRAT: PXM 1 -> APIC 0x04 -> Node 1 [ 1.605237][ T0] SRAT: PXM 1 -> APIC 0x05 -> Node 1 [ 1.656530][ T0] SRAT: PXM 1 -> APIC 0x06 -> Node 1 [ 1.712162][ T0] SRAT: PXM 1 -> APIC 0x07 -> Node 1 [ 1.773392][ T0] ACPI: SRAT: Node 0 PXM 0 [mem 0x00000000-0x0009ffff] [ 1.850037][ T0] ACPI: SRAT: Node 0 PXM 0 [mem 0x00100000-0x3fffffff] [ 1.912298][ T0] ACPI: SRAT: Node 1 PXM 1 [mem 0x40000000-0x7fffffff] [ 1.981029][ T0] ACPI: SRAT: Node 1 PXM 1 [mem 0x100000000-0x57fffffff] hotplug [ 2.053027][ T0] NUMA: Node 0 [mem 0x00000000-0x0009ffff] + [mem 0x00100000-0x3fffffff] -> [mem 0x00000000-0x3fffffff] [ 2.170563][ T0] Faking node 0 at [mem 0x0000000000000000-0x000000003fffffff] (1024MB) [ 2.266877][ T0] Faking node 1 at [mem 0x0000000040000000-0x000000007ffdcfff] (1023MB) [ 2.368419][ T0] NODE_DATA(0) allocated [mem 0x3fffb000-0x3fffffff] [ 2.471634][ T0] NODE_DATA(1) allocated [mem 0x7ffd7000-0x7ffdbfff] [ 3.050967][ T0] Zone ranges: [ 3.086364][ T0] DMA [mem 0x0000000000001000-0x0000000000ffffff] [ 3.160674][ T0] DMA32 [mem 0x0000000001000000-0x000000007ffdcfff] [ 3.242468][ T0] Normal empty [ 3.280353][ T0] Device empty [ 3.314698][ T0] Movable zone start for each node [ 3.366274][ T0] Early memory node ranges [ 3.414285][ T0] node 0: [mem 0x0000000000001000-0x000000000009efff] [ 3.512319][ T0] node 0: [mem 0x0000000000100000-0x000000003fffffff] [ 3.619611][ T0] node 1: [mem 0x0000000040000000-0x000000007ffdcfff] [ 3.715542][ T0] Zeroed struct page in unavailable ranges: 133 pages [ 3.715986][ T0] Initmem setup node 0 [mem 0x0000000000001000-0x000000003fffffff] [ 3.906502][ T0] Initmem setup node 1 [mem 0x0000000040000000-0x000000007ffdcfff] [ 11.412250][ T0] kasan: KernelAddressSanitizer initialized [ 11.523965][ T0] ACPI: PM-Timer IO Port: 0x608 [ 11.566530][ T0] ACPI: LAPIC_NMI (acpi_id[0xff] dfl dfl lint[0x1]) [ 11.646654][ T0] IOAPIC[0]: apic_id 0, version 17, address 0xfec00000, GSI 0-23 [ 11.723387][ T0] ACPI: INT_SRC_OVR (bus 0 bus_irq 0 global_irq 2 dfl dfl) [ 11.805088][ T0] ACPI: INT_SRC_OVR (bus 0 bus_irq 5 global_irq 5 high level) [ 11.906824][ T0] ACPI: INT_SRC_OVR (bus 0 bus_irq 9 global_irq 9 high level) [ 12.000229][ T0] ACPI: INT_SRC_OVR (bus 0 bus_irq 10 global_irq 10 high level) [ 12.102535][ T0] ACPI: INT_SRC_OVR (bus 0 bus_irq 11 global_irq 11 high level) [ 12.200333][ T0] Using ACPI (MADT) for SMP configuration information [ 12.283123][ T0] ACPI: HPET id: 0x8086a201 base: 0xfed00000 [ 12.358166][ T0] TSC deadline timer available [ 12.409482][ T0] smpboot: Allowing 8 CPUs, 4 hotplug CPUs [ 12.475063][ T0] kvm-guest: KVM setup pv remote TLB flush [ 12.557147][ T0] PM: hibernation: Registered nosave memory: [mem 0x00000000-0x00000fff] [ 12.648378][ T0] PM: hibernation: Registered nosave memory: [mem 0x0009f000-0x0009ffff] [ 12.744709][ T0] PM: hibernation: Registered nosave memory: [mem 0x000a0000-0x000effff] [ 12.849662][ T0] PM: hibernation: Registered nosave memory: [mem 0x000f0000-0x000fffff] [ 12.942673][ T0] [mem 0xc0000000-0xfed1bfff] available for PCI devices [ 13.020898][ T0] Booting paravirtualized kernel on KVM [ 13.094066][ T0] clocksource: refined-jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604462750000 ns [ 13.298379][ T0] setup_percpu: NR_CPUS:64 nr_cpumask_bits:64 nr_cpu_ids:8 nr_node_ids:2 [ 13.642219][ T0] percpu: Embedded 65 pages/cpu s226696 r8192 d31352 u1048576 [ 13.797907][ T0] kvm-guest: stealtime: cpu 0, msr 2ce20a40 [ 13.897892][ T0] kvm-guest: PV spinlocks enabled [ 13.974599][ T0] PV qspinlock hash table entries: 256 (order: 0, 4096 bytes, linear) [ 14.139979][ T0] Built 2 zonelists, mobility grouping on. Total pages: 515942 [ 14.262392][ T0] Policy zone: DMA32 [ 14.318624][ 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 [ 15.200861][ T0] mem auto-init: stack:off, heap alloc:on, heap free:off [ 16.900322][ T0] Memory: 1503356K/2096620K available (116743K kernel code, 17667K rwdata, 21628K rodata, 2792K init, 23948K bss, 593008K reserved, 0K cma-reserved) [ 17.376727][ T0] Running RCU self tests [ 17.426821][ T0] rcu: Preemptible hierarchical RCU implementation. [ 17.503598][ T0] rcu: RCU lockdep checking is enabled. [ 17.568224][ T0] rcu: RCU restricting CPUs from NR_CPUS=64 to nr_cpu_ids=8. [ 17.647482][ T0] rcu: RCU callback double-/use-after-free debug enabled. [ 17.727455][ T0] rcu: RCU debug extended QS entry/exit. [ 17.800543][ T0] All grace periods are expedited (rcu_expedited). [ 17.879424][ T0] Trampoline variant of Tasks RCU enabled. [ 17.947023][ T0] rcu: RCU calculated value of scheduler-enlistment delay is 10 jiffies. [ 18.028357][ T0] rcu: Adjusting geometry for rcu_fanout_leaf=16, nr_cpu_ids=8 [ 18.147737][ T0] NR_IRQS: 4352, nr_irqs: 488, preallocated irqs: 16 [ 18.312204][ T0] random: get_random_bytes called from start_kernel+0x23b/0x46a with crng_init=0 [ 19.103078][ T0] Console: colour VGA+ 80x25 [ 19.249954][ T0] printk: console [ttyS0] enabled [ 19.249954][ T0] printk: console [ttyS0] enabled [ 19.348571][ T0] printk: bootconsole [earlyser0] disabled [ 19.348571][ T0] printk: bootconsole [earlyser0] disabled [ 19.432632][ T0] Lock dependency validator: Copyright (c) 2006 Red Hat, Inc., Ingo Molnar [ 19.496595][ T0] ... MAX_LOCKDEP_SUBCLASSES: 8 [ 19.533645][ T0] ... MAX_LOCK_DEPTH: 48 [ 19.570859][ T0] ... MAX_LOCKDEP_KEYS: 8192 [ 19.606993][ T0] ... CLASSHASH_SIZE: 4096 [ 19.650945][ T0] ... MAX_LOCKDEP_ENTRIES: 32768 [ 19.691933][ T0] ... MAX_LOCKDEP_CHAINS: 65536 [ 19.724932][ T0] ... CHAINHASH_SIZE: 32768 [ 19.761298][ T0] memory used by lock dependency info: 6301 kB [ 19.820128][ T0] memory used for stack traces: 4224 kB [ 19.867271][ T0] per task-struct memory footprint: 1920 bytes [ 19.923678][ T0] mempolicy: Enabling automatic NUMA balancing. Configure with numa_balancing= or the kernel.numa_balancing sysctl [ 20.017922][ T0] ACPI: Core revision 20200717 [ 20.087922][ T0] clocksource: hpet: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604467 ns [ 20.211327][ T0] APIC: Switch to symmetric I/O mode setup [ 20.301216][ T0] x2apic enabled [ 20.346940][ T0] Switched APIC routing to physical x2apic. [ 20.381312][ T0] kvm-guest: setup PV IPIs [ 20.542318][ T0] ..TIMER: vector=0x30 apic1=0 pin1=2 apic2=-1 pin2=-1 [ 20.589586][ T0] clocksource: tsc-early: mask: 0xffffffffffffffff max_cycles: 0x1cd4c92266a, max_idle_ns: 440795223404 ns [ 20.691338][ T0] Calibrating delay loop (skipped) preset value.. 4000.32 BogoMIPS (lpj=20001640) [ 20.700433][ T0] pid_max: default: 32768 minimum: 301 [ 20.723550][ T0] LSM: Security Framework initializing [ 20.730468][ T0] LSM: security= is ignored because it is superseded by lsm= [ 20.742777][ T0] Yama: becoming mindful. [ 20.773005][ T0] SELinux: Initializing. [ 20.797163][ T0] TOMOYO Linux initialized [ 20.804423][ T0] LSM support for eBPF active [ 20.846711][ T0] Dentry cache hash table entries: 262144 (order: 9, 2097152 bytes, vmalloc) [ 20.887984][ T0] Inode-cache hash table entries: 131072 (order: 8, 1048576 bytes, vmalloc) [ 21.059928][ T0] Mount-cache hash table entries: 4096 (order: 3, 32768 bytes, vmalloc) [ 21.095061][ T0] Mountpoint-cache hash table entries: 4096 (order: 3, 32768 bytes, vmalloc) [ 21.507015][ T0] x86/cpu: User Mode Instruction Prevention (UMIP) activated [ 21.553940][ T0] Last level iTLB entries: 4KB 0, 2MB 0, 4MB 0 [ 21.559945][ T0] Last level dTLB entries: 4KB 0, 2MB 0, 4MB 0, 1GB 0 [ 21.592722][ T0] Spectre V1 : Mitigation: usercopy/swapgs barriers and __user pointer sanitization [ 21.600906][ T0] Spectre V2 : Spectre mitigation: kernel not compiled with retpoline; no mitigation available! [ 21.603020][ T0] Speculative Store Bypass: Mitigation: Speculative Store Bypass disabled via prctl [ 21.624534][ T0] TAA: Mitigation: Clear CPU buffers [ 21.629947][ T0] MDS: Mitigation: Clear CPU buffers [ 21.959928][ T0] Freeing SMP alternatives memory: 104K [ 23.099928][ T1] smpboot: CPU0: Intel(R) Xeon(R) CPU @ 2.00GHz (family: 0x6, model: 0x55, stepping: 0x3) [ 23.228426][ T1] Performance Events: unsupported p6 CPU model 85 no PMU driver, software events only. [ 23.284255][ T1] rcu: Hierarchical SRCU implementation. [ 23.358271][ T1] dyndbg: Ignore empty _ddebug table in a CONFIG_DYNAMIC_DEBUG_CORE build [ 23.387427][ T1] NMI watchdog: Perf NMI watchdog permanently disabled [ 23.459781][ T1] smp: Bringing up secondary CPUs ... [ 23.545056][ T1] x86: Booting SMP configuration: [ 23.551466][ T1] .... node #0, CPUs: #1 [ 2.266533][ T0] kvm-clock: cpu 1, msr becc041, secondary cpu clock [ 23.799928][ T15] kvm-guest: stealtime: cpu 1, msr 2cf20a40 [ 23.902259][ 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. [ 23.915552][ 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. [ 23.971659][ T1] #2 [ 2.266533][ T0] kvm-clock: cpu 2, msr becc081, secondary cpu clock [ 24.142009][ T20] kvm-guest: stealtime: cpu 2, msr 2d020a40 [ 24.240303][ T1] #3 [ 2.266533][ T0] kvm-clock: cpu 3, msr becc0c1, secondary cpu clock [ 24.405770][ T25] kvm-guest: stealtime: cpu 3, msr 2d120a40 [ 24.470580][ T1] smp: Brought up 2 nodes, 4 CPUs [ 24.480774][ T1] smpboot: Max logical packages: 2 [ 24.490293][ T1] smpboot: Total of 4 processors activated (16001.31 BogoMIPS) [ 24.661474][ T1] devtmpfs: initialized [ 24.698141][ T1] x86/mm: Memory block size: 128MB [ 24.863088][ T1] clocksource: jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604462750000 ns [ 24.869928][ T34] kworker/u17:0 (34) used greatest stack depth: 27544 bytes left [ 24.889158][ T1] futex hash table entries: 2048 (order: 6, 262144 bytes, vmalloc) [ 24.924991][ T1] xor: automatically using best checksumming function avx [ 24.962562][ T1] PM: RTC time: 23:35:55, date: 2020-08-14 [ 25.021870][ T1] NET: Registered protocol family 16 [ 25.051762][ T1] audit: initializing netlink subsys (disabled) [ 25.063717][ T39] audit: type=2000 audit(1597448151.248:1): state=initialized audit_enabled=0 res=1 [ 25.105495][ T1] thermal_sys: Registered thermal governor 'step_wise' [ 25.105549][ T1] thermal_sys: Registered thermal governor 'user_space' [ 25.131247][ T1] cpuidle: using governor menu [ 25.177046][ T1] NET: Registered protocol family 42 [ 25.216546][ T1] ACPI: bus type PCI registered [ 25.240050][ T1] dca service started, version 1.12.1 [ 25.258287][ T1] PCI: MMCONFIG for domain 0000 [bus 00-ff] at [mem 0xb0000000-0xbfffffff] (base 0xb0000000) [ 25.291287][ T1] PCI: MMCONFIG at [mem 0xb0000000-0xbfffffff] reserved in E820 [ 25.618745][ T1] PCI: Using configuration type 1 for base access [ 26.341644][ T1] HugeTLB registered 2.00 MiB page size, pre-allocated 0 pages [ 26.515202][ T1] cryptd: max_cpu_qlen set to 1000 [ 26.791051][ T1] raid6: avx512x4 gen() 12844 MB/s [ 26.991199][ T1] raid6: avx512x4 xor() 6112 MB/s [ 27.170161][ T1] raid6: avx512x2 gen() 10628 MB/s [ 27.350174][ T1] raid6: avx512x2 xor() 4737 MB/s [ 27.530126][ T1] raid6: avx512x1 gen() 6652 MB/s [ 27.710190][ T1] raid6: avx512x1 xor() 2632 MB/s [ 27.900286][ T1] raid6: avx2x4 gen() 8100 MB/s [ 28.097351][ T1] raid6: avx2x4 xor() 4468 MB/s [ 28.290817][ T1] raid6: avx2x2 gen() 5421 MB/s [ 28.470153][ T1] raid6: avx2x2 xor() 2480 MB/s [ 28.650147][ T1] raid6: avx2x1 gen() 3338 MB/s [ 28.830177][ T1] raid6: avx2x1 xor() 1233 MB/s [ 29.010877][ T1] raid6: sse2x4 gen() 3960 MB/s [ 29.190270][ T1] raid6: sse2x4 xor() 2216 MB/s [ 29.370207][ T1] raid6: sse2x2 gen() 2492 MB/s [ 29.550181][ T1] raid6: sse2x2 xor() 1302 MB/s [ 29.730692][ T1] raid6: sse2x1 gen() 1588 MB/s [ 29.941798][ T1] raid6: sse2x1 xor() 587 MB/s [ 29.990539][ T1] raid6: using algorithm avx512x4 gen() 12844 MB/s [ 30.050461][ T1] raid6: .... xor() 6112 MB/s, rmw enabled [ 30.101566][ T1] raid6: using avx512x2 recovery algorithm [ 30.200495][ T1] ACPI: Added _OSI(Module Device) [ 30.240183][ T1] ACPI: Added _OSI(Processor Device) [ 30.280232][ T1] ACPI: Added _OSI(3.0 _SCP Extensions) [ 30.310222][ T1] ACPI: Added _OSI(Processor Aggregator Device) [ 30.370354][ T1] ACPI: Added _OSI(Linux-Dell-Video) [ 30.420666][ T1] ACPI: Added _OSI(Linux-Lenovo-NV-HDMI-Audio) [ 30.470369][ T1] ACPI: Added _OSI(Linux-HPI-Hybrid-Graphics) [ 30.633403][ T1] ACPI: 2 ACPI AML tables successfully acquired and loaded [ 30.872574][ T1] ACPI: Interpreter enabled [ 30.924730][ T1] ACPI: (supports S0 S3 S4 S5) [ 30.971450][ T1] ACPI: Using IOAPIC for interrupt routing [ 31.013735][ T1] PCI: Using host bridge windows from ACPI; if necessary, use "pci=nocrs" and report a bug [ 31.079928][ T1] ACPI: Enabled 3 GPEs in block 00 to 3F [ 31.573025][ T1] ACPI: PCI Root Bridge [PCI0] (domain 0000 [bus 00-ff]) [ 31.588037][ T1] acpi PNP0A08:00: _OSC: OS supports [ExtendedConfig ASPM ClockPM Segments MSI HPX-Type3] [ 31.609623][ T1] acpi PNP0A08:00: _OSC: platform does not support [LTR] [ 31.614076][ T1] acpi PNP0A08:00: _OSC: OS now controls [PCIeHotplug PME AER PCIeCapability] [ 31.659560][ T1] PCI host bridge to bus 0000:00 [ 31.660421][ T1] pci_bus 0000:00: Unknown NUMA node; performance will be reduced [ 31.672307][ T1] pci_bus 0000:00: root bus resource [io 0x0000-0x0cf7 window] [ 31.680881][ T1] pci_bus 0000:00: root bus resource [io 0x0d00-0xffff window] [ 31.690257][ T1] pci_bus 0000:00: root bus resource [mem 0x000a0000-0x000bffff window] [ 31.700220][ T1] pci_bus 0000:00: root bus resource [mem 0x80000000-0xafffffff window] [ 31.710190][ T1] pci_bus 0000:00: root bus resource [mem 0xc0000000-0xfebfffff window] [ 31.720192][ T1] pci_bus 0000:00: root bus resource [mem 0x580000000-0xd7fffffff window] [ 31.730948][ T1] pci_bus 0000:00: root bus resource [bus 00-ff] [ 31.756096][ T1] pci 0000:00:00.0: [8086:29c0] type 00 class 0x060000 [ 31.834766][ T1] pci 0000:00:01.0: [1af4:1050] type 00 class 0x030000 [ 31.889928][ T1] pci 0000:00:01.0: reg 0x10: [mem 0xfe000000-0xfe7fffff pref] [ 31.999928][ T1] pci 0000:00:01.0: reg 0x18: [mem 0xfe800000-0xfe803fff 64bit pref] [ 32.067961][ T1] pci 0000:00:01.0: reg 0x20: [mem 0xfebf4000-0xfebf4fff] [ 32.133319][ T1] pci 0000:00:01.0: reg 0x30: [mem 0xfebe0000-0xfebeffff pref] [ 32.346629][ T1] pci 0000:00:02.0: [1af4:1000] type 00 class 0x020000 [ 32.363654][ T1] pci 0000:00:02.0: reg 0x10: [io 0xc680-0xc69f] [ 32.379275][ T1] pci 0000:00:02.0: reg 0x14: [mem 0xfebf5000-0xfebf5fff] [ 32.394550][ T1] pci 0000:00:02.0: reg 0x20: [mem 0xfe804000-0xfe807fff 64bit pref] [ 32.404125][ T1] pci 0000:00:02.0: reg 0x30: [mem 0xfeb40000-0xfeb7ffff pref] [ 32.455005][ T1] pci 0000:00:03.0: [8086:100e] type 00 class 0x020000 [ 32.467846][ T1] pci 0000:00:03.0: reg 0x10: [mem 0xfebc0000-0xfebdffff] [ 32.475091][ T1] pci 0000:00:03.0: reg 0x14: [io 0xc600-0xc63f] [ 32.497242][ T1] pci 0000:00:03.0: reg 0x30: [mem 0xfeb80000-0xfebbffff pref] [ 32.517432][ T1] pci 0000:00:04.0: [1274:5000] type 00 class 0x040100 [ 32.526121][ T1] pci 0000:00:04.0: reg 0x10: [io 0xc400-0xc4ff] [ 32.579581][ T1] pci 0000:00:05.0: [8086:2415] type 00 class 0x040100 [ 32.599694][ T1] pci 0000:00:05.0: reg 0x10: [io 0xc000-0xc3ff] [ 32.606482][ T1] pci 0000:00:05.0: reg 0x14: [io 0xc500-0xc5ff] [ 32.650686][ T1] pci 0000:00:06.0: [8086:2668] type 00 class 0x040300 [ 32.671618][ T1] pci 0000:00:06.0: reg 0x10: [mem 0xfebf0000-0xfebf3fff] [ 32.746717][ T1] pci 0000:00:07.0: [1af4:1009] type 00 class 0x000200 [ 32.756483][ T1] pci 0000:00:07.0: reg 0x10: [io 0xc6a0-0xc6bf] [ 32.766410][ T1] pci 0000:00:07.0: reg 0x14: [mem 0xfebf6000-0xfebf6fff] [ 32.789717][ T1] pci 0000:00:07.0: reg 0x20: [mem 0xfe808000-0xfe80bfff 64bit pref] [ 32.859733][ T1] pci 0000:00:1d.0: [8086:2934] type 00 class 0x0c0300 [ 32.895767][ T1] pci 0000:00:1d.0: reg 0x20: [io 0xc6c0-0xc6df] [ 32.926619][ T1] pci 0000:00:1d.1: [8086:2935] type 00 class 0x0c0300 [ 32.952578][ T1] pci 0000:00:1d.1: reg 0x20: [io 0xc6e0-0xc6ff] [ 32.977948][ T1] pci 0000:00:1d.2: [8086:2936] type 00 class 0x0c0300 [ 33.003570][ T1] pci 0000:00:1d.2: reg 0x20: [io 0xc700-0xc71f] [ 33.025087][ T1] pci 0000:00:1d.7: [8086:293a] type 00 class 0x0c0320 [ 33.035575][ T1] pci 0000:00:1d.7: reg 0x10: [mem 0xfebf7000-0xfebf7fff] [ 33.065883][ T1] pci 0000:00:1f.0: [8086:2918] type 00 class 0x060100 [ 33.098887][ T1] pci 0000:00:1f.0: quirk: [io 0x0600-0x067f] claimed by ICH6 ACPI/GPIO/TCO [ 33.123534][ T1] pci 0000:00:1f.2: [8086:2922] type 00 class 0x010601 [ 33.152650][ T1] pci 0000:00:1f.2: reg 0x20: [io 0xc720-0xc73f] [ 33.163566][ T1] pci 0000:00:1f.2: reg 0x24: [mem 0xfebf8000-0xfebf8fff] [ 33.190773][ T1] pci 0000:00:1f.3: [8086:2930] type 00 class 0x0c0500 [ 33.219694][ T1] pci 0000:00:1f.3: reg 0x20: [io 0x0700-0x073f] [ 33.363592][ T1] ACPI: PCI Interrupt Link [LNKA] (IRQs 5 *10 11) [ 33.379653][ T1] ACPI: PCI Interrupt Link [LNKB] (IRQs 5 *10 11) [ 33.383727][ T1] ACPI: PCI Interrupt Link [LNKC] (IRQs 5 10 *11) [ 33.395687][ T1] ACPI: PCI Interrupt Link [LNKD] (IRQs 5 10 *11) [ 33.406671][ T1] ACPI: PCI Interrupt Link [LNKE] (IRQs 5 *10 11) [ 33.414456][ T1] ACPI: PCI Interrupt Link [LNKF] (IRQs 5 *10 11) [ 33.425145][ T1] ACPI: PCI Interrupt Link [LNKG] (IRQs 5 10 *11) [ 33.435398][ T1] ACPI: PCI Interrupt Link [LNKH] (IRQs 5 10 *11) [ 33.441715][ T1] ACPI: PCI Interrupt Link [GSIA] (IRQs *16) [ 33.450677][ T1] ACPI: PCI Interrupt Link [GSIB] (IRQs *17) [ 33.460669][ T1] ACPI: PCI Interrupt Link [GSIC] (IRQs *18) [ 33.470490][ T1] ACPI: PCI Interrupt Link [GSID] (IRQs *19) [ 33.480709][ T1] ACPI: PCI Interrupt Link [GSIE] (IRQs *20) [ 33.490504][ T1] ACPI: PCI Interrupt Link [GSIF] (IRQs *21) [ 33.501048][ T1] ACPI: PCI Interrupt Link [GSIG] (IRQs *22) [ 33.510563][ T1] ACPI: PCI Interrupt Link [GSIH] (IRQs *23) [ 33.649928][ T1] iommu: Default domain type: Translated [ 33.651941][ T1431] kworker/u17:0 (1431) used greatest stack depth: 27424 bytes left [ 33.682830][ T1] pci 0000:00:01.0: vgaarb: setting as boot VGA device [ 33.689928][ T1] pci 0000:00:01.0: vgaarb: VGA device added: decodes=io+mem,owns=io+mem,locks=none [ 33.690187][ T1] pci 0000:00:01.0: vgaarb: bridge control possible [ 33.700030][ T1] vgaarb: loaded [ 33.752917][ T1] SCSI subsystem initialized [ 33.777129][ T1] ACPI: bus type USB registered [ 33.783209][ T1] usbcore: registered new interface driver usbfs [ 33.790991][ T1] usbcore: registered new interface driver hub [ 33.801295][ T1] usbcore: registered new device driver usb [ 33.815307][ T1] mc: Linux media interface: v0.10 [ 33.820740][ T1] videodev: Linux video capture interface: v2.00 [ 33.837264][ T1] pps_core: LinuxPPS API ver. 1 registered [ 33.850088][ T1] pps_core: Software ver. 5.3.6 - Copyright 2005-2007 Rodolfo Giometti [ 33.870720][ T1] PTP clock support registered [ 33.894106][ T1] EDAC MC: Ver: 3.0.0 [ 33.940553][ T1] Advanced Linux Sound Architecture Driver Initialized. [ 34.009928][ T1] Bluetooth: Core ver 2.22 [ 34.024126][ T1] NET: Registered protocol family 31 [ 34.040268][ T1] Bluetooth: HCI device and connection manager initialized [ 34.074834][ T1] Bluetooth: HCI socket layer initialized [ 34.090413][ T1] Bluetooth: L2CAP socket layer initialized [ 34.120924][ T1] Bluetooth: SCO socket layer initialized [ 34.141080][ T1] NET: Registered protocol family 8 [ 34.150107][ T1] NET: Registered protocol family 20 [ 34.173629][ T1] NetLabel: Initializing [ 34.180028][ T1] NetLabel: domain hash size = 128 [ 34.190090][ T1] NetLabel: protocols = UNLABELED CIPSOv4 CALIPSO [ 34.215932][ T1] NetLabel: unlabeled traffic allowed by default [ 34.246065][ T1] nfc: nfc_init: NFC Core ver 0.1 [ 34.261481][ T1] NET: Registered protocol family 39 [ 34.281212][ T1] PCI: Using ACPI for IRQ routing [ 37.469928][ T1] hpet0: at MMIO 0xfed00000, IRQs 2, 8, 0 [ 37.500624][ T1] hpet0: 3 comparators, 64-bit 100.000000 MHz counter [ 37.554163][ T1] clocksource: Switched to clocksource kvm-clock [ 41.672601][ T1] VFS: Disk quotas dquot_6.6.0 [ 41.719547][ T1] VFS: Dquot-cache hash table entries: 512 (order 0, 4096 bytes) [ 41.857985][ T1] FS-Cache: Loaded [ 41.967245][ T1] CacheFiles: Loaded [ 42.019028][ T1] TOMOYO: 2.6.0 [ 42.040522][ T1] Mandatory Access Control activated. [ 42.089328][ T1] pnp: PnP ACPI init [ 42.259022][ T1] pnp: PnP ACPI: found 6 devices [ 42.492064][ T1] clocksource: acpi_pm: mask: 0xffffff max_cycles: 0xffffff, max_idle_ns: 2085701024 ns [ 42.559197][ T1] NET: Registered protocol family 2 [ 42.641630][ T1] tcp_listen_portaddr_hash hash table entries: 1024 (order: 4, 81920 bytes, vmalloc) [ 42.692438][ T1] TCP established hash table entries: 16384 (order: 5, 131072 bytes, vmalloc) [ 42.761698][ T1] TCP bind hash table entries: 16384 (order: 8, 1179648 bytes, vmalloc) [ 42.799352][ T1] TCP: Hash tables configured (established 16384 bind 16384) [ 42.857927][ T1] MPTCP token hash table entries: 2048 (order: 5, 180224 bytes, vmalloc) [ 42.919738][ T1] UDP hash table entries: 1024 (order: 5, 163840 bytes, vmalloc) [ 42.973958][ T1] UDP-Lite hash table entries: 1024 (order: 5, 163840 bytes, vmalloc) [ 43.038458][ T1] NET: Registered protocol family 1 [ 43.091656][ T1] RPC: Registered named UNIX socket transport module. [ 43.127313][ T1] RPC: Registered udp transport module. [ 43.163909][ T1] RPC: Registered tcp transport module. [ 43.204844][ T1] RPC: Registered tcp NFSv4.1 backchannel transport module. [ 43.285096][ T1] NET: Registered protocol family 44 [ 43.324792][ T1] pci_bus 0000:00: resource 4 [io 0x0000-0x0cf7 window] [ 43.372467][ T1] pci_bus 0000:00: resource 5 [io 0x0d00-0xffff window] [ 43.410436][ T1] pci_bus 0000:00: resource 6 [mem 0x000a0000-0x000bffff window] [ 43.458490][ T1] pci_bus 0000:00: resource 7 [mem 0x80000000-0xafffffff window] [ 43.510491][ T1] pci_bus 0000:00: resource 8 [mem 0xc0000000-0xfebfffff window] [ 43.554778][ T1] pci_bus 0000:00: resource 9 [mem 0x580000000-0xd7fffffff window] [ 43.624350][ T1] pci 0000:00:01.0: Video device with shadowed ROM at [mem 0x000c0000-0x000dffff] [ 43.688889][ T1] pci 0000:00:01.0: pci_fixup_video+0x0/0x270 took 66407 usecs [ 43.786475][ T1] PCI Interrupt Link [GSIA] enabled at IRQ 16 [ 43.928411][ T1] pci 0000:00:1d.0: quirk_usb_early_handoff+0x0/0x105b took 176709 usecs [ 43.991747][ T1] PCI Interrupt Link [GSIB] enabled at IRQ 17 [ 44.047435][ T1] pci 0000:00:1d.1: quirk_usb_early_handoff+0x0/0x105b took 72092 usecs [ 44.127177][ T1] PCI Interrupt Link [GSIC] enabled at IRQ 18 [ 44.188354][ T1] pci 0000:00:1d.2: quirk_usb_early_handoff+0x0/0x105b took 74409 usecs [ 44.253649][ T1] PCI Interrupt Link [GSID] enabled at IRQ 19 [ 44.319250][ T1] pci 0000:00:1d.7: quirk_usb_early_handoff+0x0/0x105b took 77613 usecs [ 44.356791][ T1] PCI: CLS 0 bytes, default 64 [ 44.434643][ T1] PCI-DMA: Using software bounce buffering for IO (SWIOTLB) [ 44.464272][ T1] software IO TLB: mapped [mem 0x7ac00000-0x7ec00000] (64MB) [ 44.521446][ T1] kvm: no hardware support [ 44.541901][ T1] has_svm: not amd or hygon [ 44.571057][ T1] kvm: no hardware support [ 44.605042][ T1] clocksource: tsc: mask: 0xffffffffffffffff max_cycles: 0x1cd4c92266a, max_idle_ns: 440795223404 ns [ 44.675087][ T1] clocksource: Switched to clocksource tsc [ 44.722642][ T1] mce: Machine check injector initialized [ 44.794527][ T1] check: Scanning for low memory corruption every 60 seconds [ 45.795028][ T1] Initialise system trusted keyrings [ 45.859228][ T1] workingset: timestamp_bits=40 max_order=19 bucket_order=0 [ 45.909033][ T1] zbud: loaded [ 45.982743][ T1] DLM installed [ 46.023414][ T1] squashfs: version 4.0 (2009/01/31) Phillip Lougher [ 46.102925][ T1] FS-Cache: Netfs 'nfs' registered for caching [ 46.164250][ T1] NFS: Registering the id_resolver key type [ 46.223344][ T1] Key type id_resolver registered [ 46.275120][ T1] Key type id_legacy registered [ 46.329455][ T1] nfs4filelayout_init: NFSv4 File Layout Driver Registering... [ 46.384566][ T1] Installing knfsd (copyright (C) 1996 okir@monad.swb.de). [ 46.483873][ T1] FS-Cache: Netfs 'cifs' registered for caching [ 46.562641][ T1] Key type cifs.spnego registered [ 46.617172][ T1] Key type cifs.idmap registered [ 46.683347][ T1] ntfs: driver 2.1.32 [Flags: R/W]. [ 46.749485][ T1] fuse: init (API version 7.31) [ 46.829303][ T1] JFS: nTxBlock = 8192, nTxLock = 65536 [ 47.130744][ T1] SGI XFS with ACLs, security attributes, realtime, quota, no debug enabled [ 47.266784][ T1] 9p: Installing v9fs 9p2000 file system support [ 47.330979][ T1] FS-Cache: Netfs '9p' registered for caching [ 47.402607][ T1] ocfs2: Registered cluster interface o2cb [ 47.464012][ T1] ocfs2: Registered cluster interface user [ 47.512095][ T1] OCFS2 User DLM kernel interface loaded [ 47.684957][ T1] gfs2: GFS2 installed [ 47.837454][ T1] FS-Cache: Netfs 'ceph' registered for caching [ 47.914638][ T1] ceph: loaded (mds proto 32) [ 48.085629][ T1] NET: Registered protocol family 38 [ 48.156795][ T1] async_tx: api initialized (async) [ 48.207209][ T1] Key type asymmetric registered [ 48.256687][ T1] Asymmetric key parser 'x509' registered [ 48.327986][ T1] Asymmetric key parser 'pkcs8' registered [ 48.387190][ T1] Key type pkcs7_test registered [ 48.439553][ T1] Asymmetric key parser 'tpm_parser' registered [ 48.514591][ T1] Block layer SCSI generic (bsg) driver version 0.4 loaded (major 243) [ 49.366783][ T1] io scheduler mq-deadline registered [ 49.422495][ T1] io scheduler kyber registered [ 49.526574][ T1] io scheduler bfq registered [ 50.237262][ T1] hgafb: HGA card not detected. [ 50.294567][ T1] hgafb: probe of hgafb.0 failed with error -22 [ 50.389234][ T1] usbcore: registered new interface driver udlfb [ 50.506245][ T1] uvesafb: failed to execute /sbin/v86d [ 50.551971][ T1] uvesafb: make sure that the v86d helper is installed and executable [ 50.641426][ T1] uvesafb: Getting VBE info block failed (eax=0x4f00, err=-2) [ 50.735116][ T1] uvesafb: vbe_init() failed with -22 [ 50.814979][ T1] uvesafb: probe of uvesafb.0 failed with error -22 [ 50.910045][ T1] vga16fb: mapped to 0x00000000d15cd5c0 [ 91.125459][ T1] Console: switching to colour frame buffer device 80x30 [ 91.767727][ C3] hrtimer: interrupt took 55137576 ns [ 131.257881][ T1] fb0: VGA16 VGA frame buffer device [ 131.671355][ T1] input: Power Button as /devices/LNXSYSTM:00/LNXPWRBN:00/input/input0 [ 131.825377][ T1] ACPI: Power Button [PWRF] [ 132.304869][ T7] ================================================================== [ 132.308495][ T7] BUG: KASAN: global-out-of-bounds in internal_create_group+0x9d8/0xb20 [ 132.308736][ T7] Read of size 8 at addr ffffffff8a2e5c90 by task kworker/u17:0/7 [ 132.308738][ T7] [ 132.310625][ T7] CPU: 3 PID: 7 Comm: kworker/u17:0 Not tainted 5.8.0-syzkaller #0 [ 132.310657][ T7] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS rel-1.12.0-59-gc9ba5276e321-prebuilt.qemu.org 04/01/2014 [ 132.310657][ T7] Workqueue: events_unbound async_run_entry_fn [ 132.310657][ T7] Call Trace: [ 132.310657][ T7] dump_stack+0x18f/0x20d [ 132.310657][ T7] ? internal_create_group+0x9d8/0xb20 [ 132.310657][ T7] ? internal_create_group+0x9d8/0xb20 [ 132.310657][ T7] print_address_description.constprop.0.cold+0x5/0x497 [ 132.310657][ T7] ? vprintk_func+0x97/0x1a6 [ 132.310657][ T7] ? internal_create_group+0x9d8/0xb20 [ 132.310657][ T7] ? internal_create_group+0x9d8/0xb20 [ 132.310657][ T7] kasan_report.cold+0x1f/0x37 [ 132.310657][ T7] ? internal_create_group+0x9d8/0xb20 [ 132.310657][ T7] ? state_show+0xf0/0xf0 [ 132.310657][ T7] internal_create_group+0x9d8/0xb20 [ 132.310657][ T7] ? sysfs_remove_group+0x170/0x170 [ 132.310657][ T7] internal_create_groups.part.0+0x90/0x140 [ 132.310657][ T7] sysfs_create_groups+0x25/0x50 [ 132.310657][ T7] device_add+0x7fd/0x1c40 [ 132.310657][ T7] ? devlink_add_symlinks+0x450/0x450 [ 132.310657][ T7] ? lock_release+0x8e0/0x8e0 [ 132.310657][ T7] ? lock_downgrade+0x830/0x830 [ 132.310657][ T7] ? __schedule+0x88e/0x21e0 [ 132.310657][ T7] ? nd_synchronize+0x20/0x20 [ 132.310657][ T7] nd_async_device_register+0x12/0x80 [ 132.310657][ T7] async_run_entry_fn+0x121/0x530 [ 132.310657][ T7] process_one_work+0x94c/0x1670 [ 132.310657][ T7] ? lock_release+0x8e0/0x8e0 [ 132.310657][ T7] ? pwq_dec_nr_in_flight+0x2d0/0x2d0 [ 132.310657][ T7] ? rwlock_bug.part.0+0x90/0x90 [ 132.310657][ T7] worker_thread+0x64c/0x1120 [ 132.310657][ T7] ? process_one_work+0x1670/0x1670 [ 132.310657][ T7] kthread+0x3b5/0x4a0 [ 132.310657][ T7] ? __kthread_bind_mask+0xc0/0xc0 [ 132.310657][ T7] ? __kthread_bind_mask+0xc0/0xc0 [ 132.310657][ T7] ret_from_fork+0x1f/0x30 [ 132.310657][ T7] [ 132.310657][ T7] The buggy address belongs to the variable: [ 132.310657][ T7] nvdimm_firmware_attributes+0x10/0x40 [ 132.310657][ T7] [ 132.310657][ T7] Memory state around the buggy address: [ 132.310657][ T7] ffffffff8a2e5b80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 132.310657][ T7] ffffffff8a2e5c00: 00 00 00 00 00 00 00 00 00 00 00 00 f9 f9 f9 f9 [ 132.310657][ T7] >ffffffff8a2e5c80: 00 00 f9 f9 f9 f9 f9 f9 00 00 00 00 00 00 00 f9 [ 132.310657][ T7] ^ [ 132.310657][ T7] ffffffff8a2e5d00: f9 f9 f9 f9 00 00 00 00 00 00 00 f9 f9 f9 f9 f9 [ 132.310657][ T7] ffffffff8a2e5d80: 00 00 00 00 00 00 00 f9 f9 f9 f9 f9 00 00 00 00 [ 132.310657][ T7] ================================================================== [ 132.310657][ T7] Disabling lock debugging due to kernel taint [ 132.325972][ T7] Kernel panic - not syncing: panic_on_warn set ... [ 132.326085][ T7] CPU: 3 PID: 7 Comm: kworker/u17:0 Tainted: G B 5.8.0-syzkaller #0 [ 132.326317][ T7] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS rel-1.12.0-59-gc9ba5276e321-prebuilt.qemu.org 04/01/2014 [ 132.326799][ T7] Workqueue: events_unbound async_run_entry_fn [ 132.326803][ T7] Call Trace: [ 132.327353][ T7] dump_stack+0x18f/0x20d [ 132.327363][ T7] ? internal_create_group+0x970/0xb20 [ 132.327373][ T7] panic+0x2e3/0x75c [ 132.327381][ T7] ? __warn_printk+0xf3/0xf3 [ 132.327391][ T7] ? asm_sysvec_apic_timer_interrupt+0x12/0x20 [ 132.327403][ T7] ? trace_hardirqs_on+0x55/0x220 [ 132.327411][ T7] ? internal_create_group+0x9d8/0xb20 [ 132.327418][ T7] ? internal_create_group+0x9d8/0xb20 [ 132.327427][ T7] end_report+0x4d/0x53 [ 132.327435][ T7] kasan_report.cold+0xd/0x37 [ 132.327443][ T7] ? internal_create_group+0x9d8/0xb20 [ 132.327452][ T7] ? state_show+0xf0/0xf0 [ 132.327460][ T7] internal_create_group+0x9d8/0xb20 [ 132.327469][ T7] ? sysfs_remove_group+0x170/0x170 [ 132.327480][ T7] internal_create_groups.part.0+0x90/0x140 [ 132.327489][ T7] sysfs_create_groups+0x25/0x50 [ 132.327497][ T7] device_add+0x7fd/0x1c40 [ 132.327505][ T7] ? devlink_add_symlinks+0x450/0x450 [ 132.327514][ T7] ? lock_release+0x8e0/0x8e0 [ 132.327522][ T7] ? lock_downgrade+0x830/0x830 [ 132.327528][ T7] ? __schedule+0x88e/0x21e0 [ 132.327537][ T7] ? nd_synchronize+0x20/0x20 [ 132.327545][ T7] nd_async_device_register+0x12/0x80 [ 132.327553][ T7] async_run_entry_fn+0x121/0x530 [ 132.327563][ T7] process_one_work+0x94c/0x1670 [ 132.327573][ T7] ? lock_release+0x8e0/0x8e0 [ 132.327581][ T7] ? pwq_dec_nr_in_flight+0x2d0/0x2d0 [ 132.327589][ T7] ? rwlock_bug.part.0+0x90/0x90 [ 132.327599][ T7] worker_thread+0x64c/0x1120 [ 132.327610][ T7] ? process_one_work+0x1670/0x1670 [ 132.327617][ T7] kthread+0x3b5/0x4a0 [ 132.327625][ T7] ? __kthread_bind_mask+0xc0/0xc0 [ 132.327632][ T7] ? __kthread_bind_mask+0xc0/0xc0 [ 132.327641][ T7] ret_from_fork+0x1f/0x30 [ 132.335235][ T7] Kernel Offset: disabled [ 132.335235][ T7] Rebooting in 86400 seconds..