[ 0.000000][ T0] Linux version 5.9.0-rc1-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 [ 0.000013][ T0] kvm-clock: cpu 0, msr becf001, primary cpu clock [ 0.000013][ T0] kvm-clock: using sched offset of 6352112180 cycles [ 0.006867][ T0] clocksource: kvm-clock: mask: 0xffffffffffffffff max_cycles: 0x1cd42e4dffb, max_idle_ns: 881590591483 ns [ 0.026003][ T0] tsc: Detected 2000.164 MHz processor [ 0.039765][ T0] last_pfn = 0x7ffdd max_arch_pfn = 0x400000000 [ 0.047863][ T0] x86/PAT: Configuration [0-7]: WB WC UC- UC WB WP UC- WT [ 0.071492][ T0] found SMP MP-table at [mem 0x000f5a40-0x000f5a4f] [ 0.082035][ T0] check: Scanning 1 areas for low memory corruption [ 0.092511][ T0] ACPI: Early table checksum verification disabled [ 0.100011][ T0] ACPI: RSDP 0x00000000000F5870 000014 (v00 BOCHS ) [ 0.106650][ T0] ACPI: RSDT 0x000000007FFE1F9D 000040 (v01 BOCHS BXPCRSDT 00000001 BXPC 00000001) [ 0.116448][ T0] ACPI: FACP 0x000000007FFE1860 0000F4 (v03 BOCHS BXPCFACP 00000001 BXPC 00000001) [ 0.125939][ T0] ACPI: DSDT 0x000000007FFDF040 002820 (v01 BOCHS BXPCDSDT 00000001 BXPC 00000001) [ 0.135715][ T0] ACPI: FACS 0x000000007FFDF000 000040 [ 0.141159][ T0] ACPI: APIC 0x000000007FFE1954 0000B0 (v01 BOCHS BXPCAPIC 00000001 BXPC 00000001) [ 0.150479][ T0] ACPI: HPET 0x000000007FFE1A04 000038 (v01 BOCHS BXPCHPET 00000001 BXPC 00000001) [ 0.159912][ T0] ACPI: SRAT 0x000000007FFE1A3C 000178 (v01 BOCHS BXPCSRAT 00000001 BXPC 00000001) [ 0.169097][ T0] ACPI: MCFG 0x000000007FFE1BB4 00003C (v01 BOCHS BXPCMCFG 00000001 BXPC 00000001) [ 0.178252][ T0] ACPI: SSDT 0x000000007FFE1BF0 0002CD (v01 BOCHS NVDIMM 00000001 BXPC 00000001) [ 0.190013][ T0] ACPI: NFIT 0x000000007FFE1EBD 0000E0 (v01 BOCHS BXPCNFIT 00000001 BXPC 00000001) [ 0.204776][ T0] SRAT: PXM 0 -> APIC 0x00 -> Node 0 [ 0.211660][ T0] SRAT: PXM 0 -> APIC 0x01 -> Node 0 [ 0.218087][ T0] SRAT: PXM 0 -> APIC 0x02 -> Node 0 [ 0.225091][ T0] SRAT: PXM 0 -> APIC 0x03 -> Node 0 [ 0.231972][ T0] SRAT: PXM 1 -> APIC 0x04 -> Node 1 [ 0.238687][ T0] SRAT: PXM 1 -> APIC 0x05 -> Node 1 [ 0.245177][ T0] SRAT: PXM 1 -> APIC 0x06 -> Node 1 [ 0.251541][ T0] SRAT: PXM 1 -> APIC 0x07 -> Node 1 [ 0.258622][ T0] ACPI: SRAT: Node 0 PXM 0 [mem 0x00000000-0x0009ffff] [ 0.268272][ T0] ACPI: SRAT: Node 0 PXM 0 [mem 0x00100000-0x3fffffff] [ 0.279300][ T0] ACPI: SRAT: Node 1 PXM 1 [mem 0x40000000-0x7fffffff] [ 0.288843][ T0] ACPI: SRAT: Node 1 PXM 1 [mem 0x100000000-0x57fffffff] hotplug [ 0.299461][ T0] NUMA: Node 0 [mem 0x00000000-0x0009ffff] + [mem 0x00100000-0x3fffffff] -> [mem 0x00000000-0x3fffffff] [ 0.315699][ T0] Faking node 0 at [mem 0x0000000000000000-0x000000003fffffff] (1024MB) [ 0.327330][ T0] Faking node 1 at [mem 0x0000000040000000-0x000000007ffdcfff] (1023MB) [ 0.338773][ T0] NODE_DATA(0) allocated [mem 0x3fffb000-0x3fffffff] [ 0.351218][ T0] NODE_DATA(1) allocated [mem 0x7ffd7000-0x7ffdbfff] [ 0.421828][ T0] Zone ranges: [ 0.425882][ T0] DMA [mem 0x0000000000001000-0x0000000000ffffff] [ 0.434681][ T0] DMA32 [mem 0x0000000001000000-0x000000007ffdcfff] [ 0.443976][ T0] Normal empty [ 0.448561][ T0] Device empty [ 0.453018][ T0] Movable zone start for each node [ 0.459440][ T0] Early memory node ranges [ 0.466514][ T0] node 0: [mem 0x0000000000001000-0x000000000009efff] [ 0.477949][ T0] node 0: [mem 0x0000000000100000-0x000000003fffffff] [ 0.489713][ T0] node 1: [mem 0x0000000040000000-0x000000007ffdcfff] [ 0.503305][ T0] Zeroed struct page in unavailable ranges: 133 pages [ 0.503323][ T0] Initmem setup node 0 [mem 0x0000000000001000-0x000000003fffffff] [ 0.535375][ T0] Initmem setup node 1 [mem 0x0000000040000000-0x000000007ffdcfff] [ 2.453049][ T0] kasan: KernelAddressSanitizer initialized [ 2.467970][ T0] ACPI: PM-Timer IO Port: 0x608 [ 2.473115][ T0] ACPI: LAPIC_NMI (acpi_id[0xff] dfl dfl lint[0x1]) [ 2.481192][ T0] IOAPIC[0]: apic_id 0, version 17, address 0xfec00000, GSI 0-23 [ 2.489919][ T0] ACPI: INT_SRC_OVR (bus 0 bus_irq 0 global_irq 2 dfl dfl) [ 2.497519][ T0] ACPI: INT_SRC_OVR (bus 0 bus_irq 5 global_irq 5 high level) [ 2.505968][ T0] ACPI: INT_SRC_OVR (bus 0 bus_irq 9 global_irq 9 high level) [ 2.517643][ T0] ACPI: INT_SRC_OVR (bus 0 bus_irq 10 global_irq 10 high level) [ 2.527363][ T0] ACPI: INT_SRC_OVR (bus 0 bus_irq 11 global_irq 11 high level) [ 2.538248][ T0] Using ACPI (MADT) for SMP configuration information [ 2.545420][ T0] ACPI: HPET id: 0x8086a201 base: 0xfed00000 [ 2.552419][ T0] TSC deadline timer available [ 2.558043][ T0] smpboot: Allowing 8 CPUs, 4 hotplug CPUs [ 2.564855][ T0] kvm-guest: KVM setup pv remote TLB flush [ 2.571654][ T0] PM: hibernation: Registered nosave memory: [mem 0x00000000-0x00000fff] [ 2.580105][ T0] PM: hibernation: Registered nosave memory: [mem 0x0009f000-0x0009ffff] [ 2.588387][ T0] PM: hibernation: Registered nosave memory: [mem 0x000a0000-0x000effff] [ 2.596881][ T0] PM: hibernation: Registered nosave memory: [mem 0x000f0000-0x000fffff] [ 2.607195][ T0] [mem 0xc0000000-0xfed1bfff] available for PCI devices [ 2.616578][ T0] Booting paravirtualized kernel on KVM [ 2.622817][ T0] clocksource: refined-jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604462750000 ns [ 2.687807][ T0] setup_percpu: NR_CPUS:64 nr_cpumask_bits:64 nr_cpu_ids:8 nr_node_ids:2 [ 2.747264][ T0] percpu: Embedded 65 pages/cpu s226696 r8192 d31352 u1048576 [ 2.759358][ T0] kvm-guest: stealtime: cpu 0, msr 2ce20a40 [ 2.767424][ T0] kvm-guest: PV spinlocks enabled [ 2.774789][ T0] PV qspinlock hash table entries: 256 (order: 0, 4096 bytes, linear) [ 2.786087][ T0] Built 2 zonelists, mobility grouping on. Total pages: 515942 [ 2.796921][ T0] Policy zone: DMA32 [ 2.802667][ 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 [ 2.896069][ T0] mem auto-init: stack:off, heap alloc:on, heap free:off [ 3.461478][ T0] Memory: 1503356K/2096620K available (116743K kernel code, 17674K rwdata, 21636K rodata, 2792K init, 23936K bss, 593008K reserved, 0K cma-reserved) [ 3.515647][ T0] Running RCU self tests [ 3.521668][ T0] rcu: Preemptible hierarchical RCU implementation. [ 3.528638][ T0] rcu: RCU lockdep checking is enabled. [ 3.534525][ T0] rcu: RCU restricting CPUs from NR_CPUS=64 to nr_cpu_ids=8. [ 3.544534][ T0] rcu: RCU callback double-/use-after-free debug enabled. [ 3.557959][ T0] rcu: RCU debug extended QS entry/exit. [ 3.567720][ T0] All grace periods are expedited (rcu_expedited). [ 3.576779][ T0] Trampoline variant of Tasks RCU enabled. [ 3.585134][ T0] rcu: RCU calculated value of scheduler-enlistment delay is 10 jiffies. [ 3.600497][ T0] rcu: Adjusting geometry for rcu_fanout_leaf=16, nr_cpu_ids=8 [ 3.624438][ T0] NR_IRQS: 4352, nr_irqs: 488, preallocated irqs: 16 [ 3.648846][ T0] random: get_random_bytes called from start_kernel+0x23b/0x46a with crng_init=0 [ 3.762787][ T0] Console: colour VGA+ 80x25 [ 3.781081][ T0] printk: console [ttyS0] enabled [ 3.781081][ T0] printk: console [ttyS0] enabled [ 3.791569][ T0] printk: bootconsole [earlyser0] disabled [ 3.791569][ T0] printk: bootconsole [earlyser0] disabled [ 3.804241][ T0] Lock dependency validator: Copyright (c) 2006 Red Hat, Inc., Ingo Molnar [ 3.813821][ T0] ... MAX_LOCKDEP_SUBCLASSES: 8 [ 3.819414][ T0] ... MAX_LOCK_DEPTH: 48 [ 3.825598][ T0] ... MAX_LOCKDEP_KEYS: 8192 [ 3.831622][ T0] ... CLASSHASH_SIZE: 4096 [ 3.837160][ T0] ... MAX_LOCKDEP_ENTRIES: 32768 [ 3.842399][ T0] ... MAX_LOCKDEP_CHAINS: 65536 [ 3.847800][ T0] ... CHAINHASH_SIZE: 32768 [ 3.852920][ T0] memory used by lock dependency info: 6301 kB [ 3.859157][ T0] memory used for stack traces: 4224 kB [ 3.864850][ T0] per task-struct memory footprint: 1920 bytes [ 3.872000][ T0] mempolicy: Enabling automatic NUMA balancing. Configure with numa_balancing= or the kernel.numa_balancing sysctl [ 3.885357][ T0] ACPI: Core revision 20200717 [ 3.897348][ T0] clocksource: hpet: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604467 ns [ 3.915109][ T0] APIC: Switch to symmetric I/O mode setup [ 3.924694][ T0] x2apic enabled [ 3.930732][ T0] Switched APIC routing to physical x2apic. [ 3.936061][ T0] kvm-guest: setup PV IPIs [ 3.954433][ T0] ..TIMER: vector=0x30 apic1=0 pin1=2 apic2=-1 pin2=-1 [ 3.961628][ T0] clocksource: tsc-early: mask: 0xffffffffffffffff max_cycles: 0x1cd4c92266a, max_idle_ns: 440795223404 ns [ 3.972942][ T0] Calibrating delay loop (skipped) preset value.. 4000.32 BogoMIPS (lpj=20001640) [ 3.983631][ T0] pid_max: default: 32768 minimum: 301 [ 3.995057][ T0] LSM: Security Framework initializing [ 4.000909][ T0] LSM: security= is ignored because it is superseded by lsm= [ 4.003174][ T0] Yama: becoming mindful. [ 4.014218][ T0] SELinux: Initializing. [ 4.022982][ T0] TOMOYO Linux initialized [ 4.027695][ T0] LSM support for eBPF active [ 4.038924][ T0] Dentry cache hash table entries: 262144 (order: 9, 2097152 bytes, vmalloc) [ 4.045171][ T0] Inode-cache hash table entries: 131072 (order: 8, 1048576 bytes, vmalloc) [ 4.053178][ T0] Mount-cache hash table entries: 4096 (order: 3, 32768 bytes, vmalloc) [ 4.062806][ T0] Mountpoint-cache hash table entries: 4096 (order: 3, 32768 bytes, vmalloc) [ 4.114109][ T0] x86/cpu: User Mode Instruction Prevention (UMIP) activated [ 4.126373][ T0] Last level iTLB entries: 4KB 0, 2MB 0, 4MB 0 [ 4.132759][ T0] Last level dTLB entries: 4KB 0, 2MB 0, 4MB 0, 1GB 0 [ 4.139170][ T0] Spectre V1 : Mitigation: usercopy/swapgs barriers and __user pointer sanitization [ 4.142864][ T0] Spectre V2 : Spectre mitigation: kernel not compiled with retpoline; no mitigation available! [ 4.142917][ T0] Speculative Store Bypass: Mitigation: Speculative Store Bypass disabled via prctl [ 4.163001][ T0] TAA: Mitigation: Clear CPU buffers [ 4.172757][ T0] MDS: Mitigation: Clear CPU buffers [ 4.196525][ T0] Freeing SMP alternatives memory: 104K [ 4.254209][ T1] smpboot: CPU0: Intel(R) Xeon(R) CPU @ 2.00GHz (family: 0x6, model: 0x55, stepping: 0x3) [ 4.272064][ T1] Performance Events: unsupported p6 CPU model 85 no PMU driver, software events only. [ 4.275183][ T1] rcu: Hierarchical SRCU implementation. [ 4.284877][ T1] dyndbg: Ignore empty _ddebug table in a CONFIG_DYNAMIC_DEBUG_CORE build [ 4.294995][ T1] NMI watchdog: Perf NMI watchdog permanently disabled [ 4.306270][ T1] smp: Bringing up secondary CPUs ... [ 4.319252][ T1] x86: Booting SMP configuration: [ 4.323077][ T1] .... node #0, CPUs: #1 [ 0.285782][ T0] kvm-clock: cpu 1, msr becf041, secondary cpu clock [ 4.340024][ T15] kvm-guest: stealtime: cpu 1, msr 2cf20a40 [ 4.343486][ 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. [ 4.353439][ 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. [ 4.369574][ T1] #2 [ 0.285782][ T0] kvm-clock: cpu 2, msr becf081, secondary cpu clock [ 4.383976][ T20] kvm-guest: stealtime: cpu 2, msr 2d020a40 [ 4.395530][ T1] #3 [ 0.285782][ T0] kvm-clock: cpu 3, msr becf0c1, secondary cpu clock [ 4.414916][ T25] kvm-guest: stealtime: cpu 3, msr 2d120a40 [ 4.423054][ T1] smp: Brought up 2 nodes, 4 CPUs [ 4.428054][ T1] smpboot: Max logical packages: 2 [ 4.432819][ T1] smpboot: Total of 4 processors activated (16001.31 BogoMIPS) [ 4.459444][ T1] devtmpfs: initialized [ 4.466352][ T1] x86/mm: Memory block size: 128MB [ 4.515166][ T1] clocksource: jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604462750000 ns [ 4.516946][ T33] kworker/u17:0 (33) used greatest stack depth: 27544 bytes left [ 4.523591][ T1] futex hash table entries: 2048 (order: 6, 262144 bytes, vmalloc) [ 4.538012][ T1] xor: automatically using best checksumming function avx [ 4.548677][ T1] PM: RTC time: 18:17:08, date: 2020-08-20 [ 4.561183][ T1] NET: Registered protocol family 16 [ 4.579925][ T1] audit: initializing netlink subsys (disabled) [ 4.595781][ T40] audit: type=2000 audit(1597947429.189:1): state=initialized audit_enabled=0 res=1 [ 4.604959][ T1] thermal_sys: Registered thermal governor 'step_wise' [ 4.604970][ T1] thermal_sys: Registered thermal governor 'user_space' [ 4.613704][ T1] cpuidle: using governor menu [ 4.613704][ T60] kworker/u17:0 (60) used greatest stack depth: 27528 bytes left [ 4.620216][ T1] NET: Registered protocol family 42 [ 4.640201][ T1] ACPI: bus type PCI registered [ 4.658065][ T1] dca service started, version 1.12.1 [ 4.664883][ T1] PCI: MMCONFIG for domain 0000 [bus 00-ff] at [mem 0xb0000000-0xbfffffff] (base 0xb0000000) [ 4.672943][ T1] PCI: MMCONFIG at [mem 0xb0000000-0xbfffffff] reserved in E820 [ 4.725260][ T1] PCI: Using configuration type 1 for base access [ 4.781946][ T185] kworker/u17:0 (185) used greatest stack depth: 27472 bytes left [ 4.999646][ T1] HugeTLB registered 2.00 MiB page size, pre-allocated 0 pages [ 5.053138][ T1] cryptd: max_cpu_qlen set to 1000 [ 5.262874][ T1] raid6: avx512x4 gen() 16351 MB/s [ 5.432792][ T1] raid6: avx512x4 xor() 6892 MB/s [ 5.599422][ T1] raid6: avx512x2 gen() 15813 MB/s [ 5.768877][ T1] raid6: avx512x2 xor() 7089 MB/s [ 5.938915][ T1] raid6: avx512x1 gen() 9786 MB/s [ 6.112852][ T1] raid6: avx512x1 xor() 3805 MB/s [ 6.282783][ T1] raid6: avx2x4 gen() 12241 MB/s [ 6.453039][ T1] raid6: avx2x4 xor() 5773 MB/s [ 6.618100][ T1] raid6: avx2x2 gen() 7727 MB/s [ 6.788618][ T1] raid6: avx2x2 xor() 3830 MB/s [ 6.959143][ T1] raid6: avx2x1 gen() 5334 MB/s [ 7.129324][ T1] raid6: avx2x1 xor() 2047 MB/s [ 7.298783][ T1] raid6: sse2x4 gen() 6619 MB/s [ 7.467357][ T1] raid6: sse2x4 xor() 3086 MB/s [ 7.634817][ T1] raid6: sse2x2 gen() 2938 MB/s [ 7.805980][ T1] raid6: sse2x2 xor() 1724 MB/s [ 7.977020][ T1] raid6: sse2x1 gen() 2501 MB/s [ 8.149018][ T1] raid6: sse2x1 xor() 981 MB/s [ 8.152795][ T1] raid6: using algorithm avx512x4 gen() 16351 MB/s [ 8.158945][ T1] raid6: .... xor() 6892 MB/s, rmw enabled [ 8.163085][ T1] raid6: using avx512x2 recovery algorithm [ 8.184699][ T1] ACPI: Added _OSI(Module Device) [ 8.184699][ T1] ACPI: Added _OSI(Processor Device) [ 8.188058][ T1] ACPI: Added _OSI(3.0 _SCP Extensions) [ 8.192789][ T1] ACPI: Added _OSI(Processor Aggregator Device) [ 8.200083][ T1] ACPI: Added _OSI(Linux-Dell-Video) [ 8.212835][ T1] ACPI: Added _OSI(Linux-Lenovo-NV-HDMI-Audio) [ 8.222037][ T1] ACPI: Added _OSI(Linux-HPI-Hybrid-Graphics) [ 8.292403][ T1] ACPI: 2 ACPI AML tables successfully acquired and loaded [ 8.333982][ T1] ACPI: Interpreter enabled [ 8.340676][ T1] ACPI: (supports S0 S3 S4 S5) [ 8.353055][ T1] ACPI: Using IOAPIC for interrupt routing [ 8.363005][ T1] PCI: Using host bridge windows from ACPI; if necessary, use "pci=nocrs" and report a bug [ 8.377730][ T1] ACPI: Enabled 3 GPEs in block 00 to 3F [ 8.507421][ T1] ACPI: PCI Root Bridge [PCI0] (domain 0000 [bus 00-ff]) [ 8.513479][ T1] acpi PNP0A08:00: _OSC: OS supports [ExtendedConfig ASPM ClockPM Segments MSI HPX-Type3] [ 8.526992][ T1] acpi PNP0A08:00: _OSC: platform does not support [LTR] [ 8.545572][ T1] acpi PNP0A08:00: _OSC: OS now controls [PCIeHotplug PME AER PCIeCapability] [ 8.559045][ T1] PCI host bridge to bus 0000:00 [ 8.562869][ T1] pci_bus 0000:00: Unknown NUMA node; performance will be reduced [ 8.570419][ T1] pci_bus 0000:00: root bus resource [io 0x0000-0x0cf7 window] [ 8.572800][ T1] pci_bus 0000:00: root bus resource [io 0x0d00-0xffff window] [ 8.580286][ T1] pci_bus 0000:00: root bus resource [mem 0x000a0000-0x000bffff window] [ 8.592807][ T1] pci_bus 0000:00: root bus resource [mem 0x80000000-0xafffffff window] [ 8.601239][ T1] pci_bus 0000:00: root bus resource [mem 0xc0000000-0xfebfffff window] [ 8.612815][ T1] pci_bus 0000:00: root bus resource [mem 0x580000000-0xd7fffffff window] [ 8.621671][ T1] pci_bus 0000:00: root bus resource [bus 00-ff] [ 8.624787][ T1] pci 0000:00:00.0: [8086:29c0] type 00 class 0x060000 [ 8.646199][ T1] pci 0000:00:01.0: [1af4:1050] type 00 class 0x030000 [ 8.672748][ T1] pci 0000:00:01.0: reg 0x10: [mem 0xfe000000-0xfe7fffff pref] [ 8.712628][ T1] pci 0000:00:01.0: reg 0x18: [mem 0xfe800000-0xfe803fff 64bit pref] [ 8.731497][ T1] pci 0000:00:01.0: reg 0x20: [mem 0xfebf4000-0xfebf4fff] [ 8.772748][ T1] pci 0000:00:01.0: reg 0x30: [mem 0xfebe0000-0xfebeffff pref] [ 8.896632][ T1] pci 0000:00:02.0: [1af4:1000] type 00 class 0x020000 [ 8.920051][ T1] pci 0000:00:02.0: reg 0x10: [io 0xc680-0xc69f] [ 8.943945][ T1] pci 0000:00:02.0: reg 0x14: [mem 0xfebf5000-0xfebf5fff] [ 8.969362][ T1] pci 0000:00:02.0: reg 0x20: [mem 0xfe804000-0xfe807fff 64bit pref] [ 8.984777][ T1] pci 0000:00:02.0: reg 0x30: [mem 0xfeb40000-0xfeb7ffff pref] [ 9.004744][ T1] pci 0000:00:03.0: [8086:100e] type 00 class 0x020000 [ 9.016625][ T1] pci 0000:00:03.0: reg 0x10: [mem 0xfebc0000-0xfebdffff] [ 9.034888][ T1] pci 0000:00:03.0: reg 0x14: [io 0xc600-0xc63f] [ 9.051667][ T1] pci 0000:00:03.0: reg 0x30: [mem 0xfeb80000-0xfebbffff pref] [ 9.074827][ T1] pci 0000:00:04.0: [1274:5000] type 00 class 0x040100 [ 9.084618][ T1] pci 0000:00:04.0: reg 0x10: [io 0xc400-0xc4ff] [ 9.102058][ T1] pci 0000:00:05.0: [8086:2415] type 00 class 0x040100 [ 9.104790][ T1] pci 0000:00:05.0: reg 0x10: [io 0xc000-0xc3ff] [ 9.112197][ T1] pci 0000:00:05.0: reg 0x14: [io 0xc500-0xc5ff] [ 9.135175][ T1] pci 0000:00:06.0: [8086:2668] type 00 class 0x040300 [ 9.144060][ T1] pci 0000:00:06.0: reg 0x10: [mem 0xfebf0000-0xfebf3fff] [ 9.163018][ T1] pci 0000:00:07.0: [1af4:1009] type 00 class 0x000200 [ 9.175301][ T1] pci 0000:00:07.0: reg 0x10: [io 0xc6a0-0xc6bf] [ 9.182808][ T1] pci 0000:00:07.0: reg 0x14: [mem 0xfebf6000-0xfebf6fff] [ 9.194571][ T1] pci 0000:00:07.0: reg 0x20: [mem 0xfe808000-0xfe80bfff 64bit pref] [ 9.213216][ T1] pci 0000:00:1d.0: [8086:2934] type 00 class 0x0c0300 [ 9.224680][ T1] pci 0000:00:1d.0: reg 0x20: [io 0xc6c0-0xc6df] [ 9.236103][ T1] pci 0000:00:1d.1: [8086:2935] type 00 class 0x0c0300 [ 9.247714][ T1] pci 0000:00:1d.1: reg 0x20: [io 0xc6e0-0xc6ff] [ 9.256940][ T1] pci 0000:00:1d.2: [8086:2936] type 00 class 0x0c0300 [ 9.268195][ T1] pci 0000:00:1d.2: reg 0x20: [io 0xc700-0xc71f] [ 9.282812][ T1] pci 0000:00:1d.7: [8086:293a] type 00 class 0x0c0320 [ 9.294346][ T1] pci 0000:00:1d.7: reg 0x10: [mem 0xfebf7000-0xfebf7fff] [ 9.309781][ T1] pci 0000:00:1f.0: [8086:2918] type 00 class 0x060100 [ 9.319367][ T1] pci 0000:00:1f.0: quirk: [io 0x0600-0x067f] claimed by ICH6 ACPI/GPIO/TCO [ 9.334688][ T1] pci 0000:00:1f.0: quirk_ich7_lpc+0x0/0x190 took 19531 usecs [ 9.348211][ T1] pci 0000:00:1f.2: [8086:2922] type 00 class 0x010601 [ 9.364028][ T1] pci 0000:00:1f.2: reg 0x20: [io 0xc720-0xc73f] [ 9.373576][ T1] pci 0000:00:1f.2: reg 0x24: [mem 0xfebf8000-0xfebf8fff] [ 9.388041][ T1] pci 0000:00:1f.3: [8086:2930] type 00 class 0x0c0500 [ 9.398689][ T1] pci 0000:00:1f.3: reg 0x20: [io 0x0700-0x073f] [ 9.444131][ T1] ACPI: PCI Interrupt Link [LNKA] (IRQs 5 *10 11) [ 9.455712][ T1] ACPI: PCI Interrupt Link [LNKB] (IRQs 5 *10 11) [ 9.465977][ T1] ACPI: PCI Interrupt Link [LNKC] (IRQs 5 10 *11) [ 9.474865][ T1] ACPI: PCI Interrupt Link [LNKD] (IRQs 5 10 *11) [ 9.484054][ T1] ACPI: PCI Interrupt Link [LNKE] (IRQs 5 *10 11) [ 9.495075][ T1] ACPI: PCI Interrupt Link [LNKF] (IRQs 5 *10 11) [ 9.515088][ T1] ACPI: PCI Interrupt Link [LNKG] (IRQs 5 10 *11) [ 9.525134][ T1] ACPI: PCI Interrupt Link [LNKH] (IRQs 5 10 *11) [ 9.532523][ T1] ACPI: PCI Interrupt Link [GSIA] (IRQs *16) [ 9.533110][ T1] ACPI: PCI Interrupt Link [GSIB] (IRQs *17) [ 9.539190][ T1] ACPI: PCI Interrupt Link [GSIC] (IRQs *18) [ 9.543106][ T1] ACPI: PCI Interrupt Link [GSID] (IRQs *19) [ 9.549687][ T1] ACPI: PCI Interrupt Link [GSIE] (IRQs *20) [ 9.563106][ T1] ACPI: PCI Interrupt Link [GSIF] (IRQs *21) [ 9.569867][ T1] ACPI: PCI Interrupt Link [GSIG] (IRQs *22) [ 9.573077][ T1] ACPI: PCI Interrupt Link [GSIH] (IRQs *23) [ 9.624179][ T1] iommu: Default domain type: Translated [ 9.639855][ T1] pci 0000:00:01.0: vgaarb: setting as boot VGA device [ 9.642748][ T1] pci 0000:00:01.0: vgaarb: VGA device added: decodes=io+mem,owns=io+mem,locks=none [ 9.652905][ T1] pci 0000:00:01.0: vgaarb: bridge control possible [ 9.659799][ T1] vgaarb: loaded [ 9.695072][ T1] SCSI subsystem initialized [ 9.715130][ T1] ACPI: bus type USB registered [ 9.721816][ T1] usbcore: registered new interface driver usbfs [ 9.723290][ T1] usbcore: registered new interface driver hub [ 9.733230][ T1] usbcore: registered new device driver usb [ 9.748437][ T1] mc: Linux media interface: v0.10 [ 9.753054][ T1] videodev: Linux video capture interface: v2.00 [ 9.762808][ T1] pps_core: LinuxPPS API ver. 1 registered [ 9.772907][ T1] pps_core: Software ver. 5.3.6 - Copyright 2005-2007 Rodolfo Giometti [ 9.783031][ T1] PTP clock support registered [ 9.794664][ T1] EDAC MC: Ver: 3.0.0 [ 9.815889][ T1] Advanced Linux Sound Architecture Driver Initialized. [ 9.834054][ T1] Bluetooth: Core ver 2.22 [ 9.839187][ T1] NET: Registered protocol family 31 [ 9.842810][ T1] Bluetooth: HCI device and connection manager initialized [ 9.850170][ T1] Bluetooth: HCI socket layer initialized [ 9.852796][ T1] Bluetooth: L2CAP socket layer initialized [ 9.859413][ T1] Bluetooth: SCO socket layer initialized [ 9.863200][ T1] NET: Registered protocol family 8 [ 9.869532][ T1] NET: Registered protocol family 20 [ 9.873673][ T1] NetLabel: Initializing [ 9.877999][ T1] NetLabel: domain hash size = 128 [ 9.882781][ T1] NetLabel: protocols = UNLABELED CIPSOv4 CALIPSO [ 9.890375][ T1] NetLabel: unlabeled traffic allowed by default [ 9.895138][ T1] nfc: nfc_init: NFC Core ver 0.1 [ 9.900019][ T1] NET: Registered protocol family 39 [ 9.902748][ T1] PCI: Using ACPI for IRQ routing [ 10.511082][ T1] hpet0: at MMIO 0xfed00000, IRQs 2, 8, 0 [ 10.522810][ T1] hpet0: 3 comparators, 64-bit 100.000000 MHz counter [ 10.533991][ T1] clocksource: Switched to clocksource kvm-clock [ 13.490032][ T1] VFS: Disk quotas dquot_6.6.0 [ 13.500683][ T1] VFS: Dquot-cache hash table entries: 512 (order 0, 4096 bytes) [ 13.513989][ T1] FS-Cache: Loaded [ 13.536901][ T1] CacheFiles: Loaded [ 13.544682][ T1] TOMOYO: 2.6.0 [ 13.548042][ T1] Mandatory Access Control activated. [ 13.555834][ T1] pnp: PnP ACPI init [ 13.585974][ T1] pnp: PnP ACPI: found 6 devices [ 13.674173][ T1] clocksource: acpi_pm: mask: 0xffffff max_cycles: 0xffffff, max_idle_ns: 2085701024 ns [ 13.686974][ T1] NET: Registered protocol family 2 [ 13.701815][ T1] tcp_listen_portaddr_hash hash table entries: 1024 (order: 4, 81920 bytes, vmalloc) [ 13.711830][ T1] TCP established hash table entries: 16384 (order: 5, 131072 bytes, vmalloc) [ 13.721661][ T1] TCP bind hash table entries: 16384 (order: 8, 1179648 bytes, vmalloc) [ 13.730430][ T1] TCP: Hash tables configured (established 16384 bind 16384) [ 13.752258][ T1] MPTCP token hash table entries: 2048 (order: 5, 180224 bytes, vmalloc) [ 13.763252][ T1] UDP hash table entries: 1024 (order: 5, 163840 bytes, vmalloc) [ 13.772290][ T1] UDP-Lite hash table entries: 1024 (order: 5, 163840 bytes, vmalloc) [ 13.783573][ T1] NET: Registered protocol family 1 [ 13.795337][ T1] RPC: Registered named UNIX socket transport module. [ 13.802332][ T1] RPC: Registered udp transport module. [ 13.807678][ T1] RPC: Registered tcp transport module. [ 13.813305][ T1] RPC: Registered tcp NFSv4.1 backchannel transport module. [ 13.823847][ T1] NET: Registered protocol family 44 [ 13.830007][ T1] pci_bus 0000:00: resource 4 [io 0x0000-0x0cf7 window] [ 13.837117][ T1] pci_bus 0000:00: resource 5 [io 0x0d00-0xffff window] [ 13.844203][ T1] pci_bus 0000:00: resource 6 [mem 0x000a0000-0x000bffff window] [ 13.852429][ T1] pci_bus 0000:00: resource 7 [mem 0x80000000-0xafffffff window] [ 13.860323][ T1] pci_bus 0000:00: resource 8 [mem 0xc0000000-0xfebfffff window] [ 13.868188][ T1] pci_bus 0000:00: resource 9 [mem 0x580000000-0xd7fffffff window] [ 13.879581][ T1] pci 0000:00:01.0: Video device with shadowed ROM at [mem 0x000c0000-0x000dffff] [ 13.903348][ T1] PCI Interrupt Link [GSIA] enabled at IRQ 16 [ 13.926860][ T1] pci 0000:00:1d.0: quirk_usb_early_handoff+0x0/0x105b took 36018 usecs [ 13.946081][ T1] PCI Interrupt Link [GSIB] enabled at IRQ 17 [ 13.964010][ T1] pci 0000:00:1d.1: quirk_usb_early_handoff+0x0/0x105b took 28091 usecs [ 13.983446][ T1] PCI Interrupt Link [GSIC] enabled at IRQ 18 [ 14.001054][ T1] pci 0000:00:1d.2: quirk_usb_early_handoff+0x0/0x105b took 28265 usecs [ 14.020523][ T1] PCI Interrupt Link [GSID] enabled at IRQ 19 [ 14.038303][ T1] pci 0000:00:1d.7: quirk_usb_early_handoff+0x0/0x105b took 28794 usecs [ 14.049374][ T1] PCI: CLS 0 bytes, default 64 [ 14.064346][ T1] PCI-DMA: Using software bounce buffering for IO (SWIOTLB) [ 14.075500][ T1] software IO TLB: mapped [mem 0x7ac00000-0x7ec00000] (64MB) [ 14.088805][ T1] kvm: no hardware support [ 14.093548][ T1] has_svm: not amd or hygon [ 14.097573][ T1] kvm: no hardware support [ 14.101978][ T1] clocksource: tsc: mask: 0xffffffffffffffff max_cycles: 0x1cd4c92266a, max_idle_ns: 440795223404 ns [ 14.112964][ T1] clocksource: Switched to clocksource tsc [ 14.120567][ T1] mce: Machine check injector initialized [ 14.134729][ T1] check: Scanning for low memory corruption every 60 seconds [ 14.286065][ T1] Initialise system trusted keyrings [ 14.297085][ T1] workingset: timestamp_bits=40 max_order=19 bucket_order=0 [ 14.306257][ T1] zbud: loaded [ 14.318776][ T1] DLM installed [ 14.324606][ T1] squashfs: version 4.0 (2009/01/31) Phillip Lougher [ 14.336723][ T1] FS-Cache: Netfs 'nfs' registered for caching [ 14.345077][ T1] NFS: Registering the id_resolver key type [ 14.350855][ T1] Key type id_resolver registered [ 14.355952][ T1] Key type id_legacy registered [ 14.361765][ T1] nfs4filelayout_init: NFSv4 File Layout Driver Registering... [ 14.369818][ T1] Installing knfsd (copyright (C) 1996 okir@monad.swb.de). [ 14.384440][ T1] FS-Cache: Netfs 'cifs' registered for caching [ 14.393694][ T1] Key type cifs.spnego registered [ 14.398650][ T1] Key type cifs.idmap registered [ 14.403943][ T1] ntfs: driver 2.1.32 [Flags: R/W]. [ 14.410345][ T1] fuse: init (API version 7.31) [ 14.419687][ T1] JFS: nTxBlock = 8192, nTxLock = 65536 [ 14.477396][ T1] SGI XFS with ACLs, security attributes, realtime, quota, no debug enabled [ 14.492314][ T1] 9p: Installing v9fs 9p2000 file system support [ 14.498589][ T1] FS-Cache: Netfs '9p' registered for caching [ 14.506304][ T1] ocfs2: Registered cluster interface o2cb [ 14.513260][ T1] ocfs2: Registered cluster interface user [ 14.521647][ T1] OCFS2 User DLM kernel interface loaded [ 14.544510][ T1] gfs2: GFS2 installed [ 14.558857][ T1] FS-Cache: Netfs 'ceph' registered for caching [ 14.566293][ T1] ceph: loaded (mds proto 32) [ 14.601642][ T1] NET: Registered protocol family 38 [ 14.607965][ T1] async_tx: api initialized (async) [ 14.613441][ T1] Key type asymmetric registered [ 14.618409][ T1] Asymmetric key parser 'x509' registered [ 14.624412][ T1] Asymmetric key parser 'pkcs8' registered [ 14.630004][ T1] Key type pkcs7_test registered [ 14.635052][ T1] Asymmetric key parser 'tpm_parser' registered [ 14.641984][ T1] Block layer SCSI generic (bsg) driver version 0.4 loaded (major 243) [ 14.654890][ T1] io scheduler mq-deadline registered [ 14.660916][ T1] io scheduler kyber registered [ 14.667834][ T1] io scheduler bfq registered [ 14.694508][ T1] hgafb: HGA card not detected. [ 14.699599][ T1] hgafb: probe of hgafb.0 failed with error -22 [ 14.707992][ T1] usbcore: registered new interface driver udlfb [ 14.721859][ T1] uvesafb: failed to execute /sbin/v86d [ 14.727441][ T1] uvesafb: make sure that the v86d helper is installed and executable [ 14.735817][ T1] uvesafb: Getting VBE info block failed (eax=0x4f00, err=-2) [ 14.743454][ T1] uvesafb: vbe_init() failed with -22 [ 14.749358][ T1] uvesafb: probe of uvesafb.0 failed with error -22 [ 14.759683][ T1] vga16fb: mapped to 0x00000000dc34dbdc [ 21.949403][ T1] Console: switching to colour frame buffer device 80x30 [ 30.165577][ T1] fb0: VGA16 VGA frame buffer device [ 30.185120][ T1] input: Power Button as /devices/LNXSYSTM:00/LNXPWRBN:00/input/input0 [ 30.198515][ T1] ACPI: Power Button [PWRF] [ 30.334296][ T80] ================================================================== [ 30.342389][ T80] BUG: KASAN: global-out-of-bounds in internal_create_group+0x9d8/0xb20 [ 30.343541][ T80] Read of size 8 at addr ffffffff8a2e73d0 by task kworker/u17:3/80 [ 30.352962][ T80] [ 30.352962][ T80] CPU: 0 PID: 80 Comm: kworker/u17:3 Not tainted 5.9.0-rc1-syzkaller #0 [ 30.362952][ T80] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS rel-1.12.0-59-gc9ba5276e321-prebuilt.qemu.org 04/01/2014 [ 30.372980][ T80] Workqueue: events_unbound async_run_entry_fn [ 30.383559][ T80] Call Trace: [ 30.383559][ T80] dump_stack+0x18f/0x20d [ 30.393473][ T80] ? internal_create_group+0x9d8/0xb20 [ 30.393473][ T80] ? internal_create_group+0x9d8/0xb20 [ 30.402971][ T80] print_address_description.constprop.0.cold+0x5/0x497 [ 30.402971][ T80] ? vprintk_func+0x97/0x1a6 [ 30.413095][ T80] ? internal_create_group+0x9d8/0xb20 [ 30.413095][ T80] ? internal_create_group+0x9d8/0xb20 [ 30.422951][ T80] kasan_report.cold+0x1f/0x37 [ 30.422951][ T80] ? internal_create_group+0x9d8/0xb20 [ 30.432946][ T80] ? state_show+0xf0/0xf0 [ 30.432946][ T80] internal_create_group+0x9d8/0xb20 [ 30.443189][ T80] ? sysfs_remove_group+0x170/0x170 [ 30.443189][ T80] internal_create_groups.part.0+0x90/0x140 [ 30.452944][ T80] sysfs_create_groups+0x25/0x50 [ 30.452944][ T80] device_add+0x7fd/0x1c40 [ 30.462945][ T80] ? devlink_add_symlinks+0x450/0x450 [ 30.462945][ T80] ? lock_release+0x8e0/0x8e0 [ 30.472964][ T80] ? lock_downgrade+0x830/0x830 [ 30.472964][ T80] ? __schedule+0x88e/0x21e0 [ 30.483120][ T80] ? nd_synchronize+0x20/0x20 [ 30.483120][ T80] nd_async_device_register+0x12/0x80 [ 30.492962][ T80] async_run_entry_fn+0x121/0x530 [ 30.492962][ T80] process_one_work+0x94c/0x1670 [ 30.502970][ T80] ? lock_release+0x8e0/0x8e0 [ 30.502970][ T80] ? pwq_dec_nr_in_flight+0x2d0/0x2d0 [ 30.512968][ T80] ? rwlock_bug.part.0+0x90/0x90 [ 30.512968][ T80] worker_thread+0x64c/0x1120 [ 30.512968][ T80] ? process_one_work+0x1670/0x1670 [ 30.512968][ T80] kthread+0x3b5/0x4a0 [ 30.512968][ T80] ? __kthread_bind_mask+0xc0/0xc0 [ 30.532948][ T80] ? __kthread_bind_mask+0xc0/0xc0 [ 30.532948][ T80] ret_from_fork+0x1f/0x30 [ 30.542939][ T80] [ 30.542939][ T80] The buggy address belongs to the variable: [ 30.552955][ T80] nvdimm_firmware_attributes+0x10/0x40 [ 30.552955][ T80] [ 30.552955][ T80] Memory state around the buggy address: [ 30.562861][ T80] ffffffff8a2e7280: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 30.572941][ T80] ffffffff8a2e7300: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 30.582938][ T80] >ffffffff8a2e7380: 00 00 00 00 f9 f9 f9 f9 00 00 f9 f9 f9 f9 f9 f9 [ 30.582938][ T80] ^ [ 30.592945][ T80] ffffffff8a2e7400: 00 00 00 00 00 00 00 f9 f9 f9 f9 f9 00 00 00 00 [ 30.602934][ T80] ffffffff8a2e7480: 00 00 00 f9 f9 f9 f9 f9 00 00 00 00 00 00 00 f9 [ 30.602934][ T80] ================================================================== [ 30.612949][ T80] Disabling lock debugging due to kernel taint [ 30.629134][ T80] Kernel panic - not syncing: panic_on_warn set ... [ 30.636148][ T80] CPU: 2 PID: 80 Comm: kworker/u17:3 Tainted: G B 5.9.0-rc1-syzkaller #0 [ 30.639113][ T80] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS rel-1.12.0-59-gc9ba5276e321-prebuilt.qemu.org 04/01/2014 [ 30.639113][ T80] Workqueue: events_unbound async_run_entry_fn [ 30.639113][ T80] Call Trace: [ 30.639113][ T80] dump_stack+0x18f/0x20d [ 30.639113][ T80] ? internal_create_group+0x960/0xb20 [ 30.639113][ T80] panic+0x2e3/0x75c [ 30.639113][ T80] ? __warn_printk+0xf3/0xf3 [ 30.639113][ T80] ? preempt_schedule_common+0x59/0xc0 [ 30.639113][ T80] ? internal_create_group+0x9d8/0xb20 [ 30.639113][ T80] ? preempt_schedule_thunk+0x16/0x18 [ 30.639113][ T80] ? trace_hardirqs_on+0x55/0x220 [ 30.639113][ T80] ? internal_create_group+0x9d8/0xb20 [ 30.639113][ T80] ? internal_create_group+0x9d8/0xb20 [ 30.639113][ T80] end_report+0x4d/0x53 [ 30.639113][ T80] kasan_report.cold+0xd/0x37 [ 30.639113][ T80] ? internal_create_group+0x9d8/0xb20 [ 30.639113][ T80] ? state_show+0xf0/0xf0 [ 30.639113][ T80] internal_create_group+0x9d8/0xb20 [ 30.639113][ T80] ? sysfs_remove_group+0x170/0x170 [ 30.639113][ T80] internal_create_groups.part.0+0x90/0x140 [ 30.639113][ T80] sysfs_create_groups+0x25/0x50 [ 30.639113][ T80] device_add+0x7fd/0x1c40 [ 30.639113][ T80] ? devlink_add_symlinks+0x450/0x450 [ 30.639113][ T80] ? lock_release+0x8e0/0x8e0 [ 30.639113][ T80] ? lock_downgrade+0x830/0x830 [ 30.639113][ T80] ? __schedule+0x88e/0x21e0 [ 30.639113][ T80] ? nd_synchronize+0x20/0x20 [ 30.639113][ T80] nd_async_device_register+0x12/0x80 [ 30.639113][ T80] async_run_entry_fn+0x121/0x530 [ 30.639113][ T80] process_one_work+0x94c/0x1670 [ 30.639113][ T80] ? lock_release+0x8e0/0x8e0 [ 30.639113][ T80] ? pwq_dec_nr_in_flight+0x2d0/0x2d0 [ 30.639113][ T80] ? rwlock_bug.part.0+0x90/0x90 [ 30.639113][ T80] worker_thread+0x64c/0x1120 [ 30.639113][ T80] ? process_one_work+0x1670/0x1670 [ 30.639113][ T80] kthread+0x3b5/0x4a0 [ 30.639113][ T80] ? __kthread_bind_mask+0xc0/0xc0 [ 30.639113][ T80] ? __kthread_bind_mask+0xc0/0xc0 [ 30.639113][ T80] ret_from_fork+0x1f/0x30 [ 30.639113][ T80] Kernel Offset: disabled [ 30.639113][ T80] Rebooting in 86400 seconds..