[ 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=apparmor lsm=lockdown,yama,safesetid,integrity,tomoyo,apparmor,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 [ 0.000036][ T0] kvm-clock: cpu 0, msr becf001, primary cpu clock [ 0.000037][ T0] kvm-clock: using sched offset of 18803126204 cycles [ 0.023622][ T0] clocksource: kvm-clock: mask: 0xffffffffffffffff max_cycles: 0x1cd42e4dffb, max_idle_ns: 881590591483 ns [ 0.081526][ T0] tsc: Detected 2000.164 MHz processor [ 0.112130][ T0] last_pfn = 0x7ffdd max_arch_pfn = 0x400000000 [ 0.130885][ T0] x86/PAT: Configuration [0-7]: WB WC UC- UC WB WP UC- WT [ 0.160057][ T0] found SMP MP-table at [mem 0x000f5a50-0x000f5a5f] [ 0.171296][ T0] check: Scanning 1 areas for low memory corruption [ 0.188429][ T0] ACPI: Early table checksum verification disabled [ 0.199264][ T0] ACPI: RSDP 0x00000000000F5880 000014 (v00 BOCHS ) [ 0.220823][ T0] ACPI: RSDT 0x000000007FFE1F9D 000040 (v01 BOCHS BXPCRSDT 00000001 BXPC 00000001) [ 0.272553][ T0] ACPI: FACP 0x000000007FFE1860 0000F4 (v03 BOCHS BXPCFACP 00000001 BXPC 00000001) [ 0.327258][ T0] ACPI: DSDT 0x000000007FFDF040 002820 (v01 BOCHS BXPCDSDT 00000001 BXPC 00000001) [ 0.378662][ T0] ACPI: FACS 0x000000007FFDF000 000040 [ 0.407050][ T0] ACPI: APIC 0x000000007FFE1954 0000B0 (v01 BOCHS BXPCAPIC 00000001 BXPC 00000001) [ 0.463466][ T0] ACPI: HPET 0x000000007FFE1A04 000038 (v01 BOCHS BXPCHPET 00000001 BXPC 00000001) [ 0.521536][ T0] ACPI: SRAT 0x000000007FFE1A3C 000178 (v01 BOCHS BXPCSRAT 00000001 BXPC 00000001) [ 0.564158][ T0] ACPI: MCFG 0x000000007FFE1BB4 00003C (v01 BOCHS BXPCMCFG 00000001 BXPC 00000001) [ 0.611380][ T0] ACPI: SSDT 0x000000007FFE1BF0 0002CD (v01 BOCHS NVDIMM 00000001 BXPC 00000001) [ 0.645925][ T0] ACPI: NFIT 0x000000007FFE1EBD 0000E0 (v01 BOCHS BXPCNFIT 00000001 BXPC 00000001) [ 0.710514][ T0] SRAT: PXM 0 -> APIC 0x00 -> Node 0 [ 0.734451][ T0] SRAT: PXM 0 -> APIC 0x01 -> Node 0 [ 0.755157][ T0] SRAT: PXM 0 -> APIC 0x02 -> Node 0 [ 0.774428][ T0] SRAT: PXM 0 -> APIC 0x03 -> Node 0 [ 0.800298][ T0] SRAT: PXM 1 -> APIC 0x04 -> Node 1 [ 0.821053][ T0] SRAT: PXM 1 -> APIC 0x05 -> Node 1 [ 0.844781][ T0] SRAT: PXM 1 -> APIC 0x06 -> Node 1 [ 0.872758][ T0] SRAT: PXM 1 -> APIC 0x07 -> Node 1 [ 0.902306][ T0] ACPI: SRAT: Node 0 PXM 0 [mem 0x00000000-0x0009ffff] [ 0.927560][ T0] ACPI: SRAT: Node 0 PXM 0 [mem 0x00100000-0x3fffffff] [ 0.946934][ T0] ACPI: SRAT: Node 1 PXM 1 [mem 0x40000000-0x7fffffff] [ 0.973379][ T0] ACPI: SRAT: Node 1 PXM 1 [mem 0x100000000-0x57fffffff] hotplug [ 0.998242][ T0] NUMA: Node 0 [mem 0x00000000-0x0009ffff] + [mem 0x00100000-0x3fffffff] -> [mem 0x00000000-0x3fffffff] [ 1.032415][ T0] Faking node 0 at [mem 0x0000000000000000-0x000000003fffffff] (1024MB) [ 1.066517][ T0] Faking node 1 at [mem 0x0000000040000000-0x000000007ffdcfff] (1023MB) [ 1.087176][ T0] NODE_DATA(0) allocated [mem 0x3fffb000-0x3fffffff] [ 1.101636][ T0] NODE_DATA(1) allocated [mem 0x7ffd7000-0x7ffdbfff] [ 1.307253][ T0] Zone ranges: [ 1.332397][ T0] DMA [mem 0x0000000000001000-0x0000000000ffffff] [ 1.380002][ T0] DMA32 [mem 0x0000000001000000-0x000000007ffdcfff] [ 1.430954][ T0] Normal empty [ 1.455883][ T0] Device empty [ 1.485252][ T0] Movable zone start for each node [ 1.522651][ T0] Early memory node ranges [ 1.553962][ T0] node 0: [mem 0x0000000000001000-0x000000000009efff] [ 1.606905][ T0] node 0: [mem 0x0000000000100000-0x000000003fffffff] [ 1.655647][ T0] node 1: [mem 0x0000000040000000-0x000000007ffdcfff] [ 1.701216][ T0] Zeroed struct page in unavailable ranges: 133 pages [ 1.701257][ T0] Initmem setup node 0 [mem 0x0000000000001000-0x000000003fffffff] [ 1.795216][ T0] Initmem setup node 1 [mem 0x0000000040000000-0x000000007ffdcfff] [ 5.613289][ T0] kasan: KernelAddressSanitizer initialized [ 5.691868][ T0] ACPI: PM-Timer IO Port: 0x608 [ 5.718787][ T0] ACPI: LAPIC_NMI (acpi_id[0xff] dfl dfl lint[0x1]) [ 5.754720][ T0] IOAPIC[0]: apic_id 0, version 17, address 0xfec00000, GSI 0-23 [ 5.773902][ T0] ACPI: INT_SRC_OVR (bus 0 bus_irq 0 global_irq 2 dfl dfl) [ 5.790268][ T0] ACPI: INT_SRC_OVR (bus 0 bus_irq 5 global_irq 5 high level) [ 5.805083][ T0] ACPI: INT_SRC_OVR (bus 0 bus_irq 9 global_irq 9 high level) [ 5.822650][ T0] ACPI: INT_SRC_OVR (bus 0 bus_irq 10 global_irq 10 high level) [ 5.848759][ T0] ACPI: INT_SRC_OVR (bus 0 bus_irq 11 global_irq 11 high level) [ 5.875836][ T0] Using ACPI (MADT) for SMP configuration information [ 5.899449][ T0] ACPI: HPET id: 0x8086a201 base: 0xfed00000 [ 5.919176][ T0] TSC deadline timer available [ 5.936910][ T0] smpboot: Allowing 8 CPUs, 4 hotplug CPUs [ 5.954430][ T0] kvm-guest: KVM setup pv remote TLB flush [ 5.972909][ T0] PM: hibernation: Registered nosave memory: [mem 0x00000000-0x00000fff] [ 5.991490][ T0] PM: hibernation: Registered nosave memory: [mem 0x0009f000-0x0009ffff] [ 6.010049][ T0] PM: hibernation: Registered nosave memory: [mem 0x000a0000-0x000effff] [ 6.027021][ T0] PM: hibernation: Registered nosave memory: [mem 0x000f0000-0x000fffff] [ 6.043747][ T0] [mem 0xc0000000-0xfed1bfff] available for PCI devices [ 6.056534][ T0] Booting paravirtualized kernel on KVM [ 6.072245][ T0] clocksource: refined-jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604462750000 ns [ 6.179415][ T0] setup_percpu: NR_CPUS:64 nr_cpumask_bits:64 nr_cpu_ids:8 nr_node_ids:2 [ 6.280259][ T0] percpu: Embedded 65 pages/cpu s226696 r8192 d31352 u1048576 [ 6.327011][ T0] kvm-guest: stealtime: cpu 0, msr 2ce20a40 [ 6.348555][ T0] kvm-guest: PV spinlocks enabled [ 6.366572][ T0] PV qspinlock hash table entries: 256 (order: 0, 4096 bytes, linear) [ 6.411999][ T0] Built 2 zonelists, mobility grouping on. Total pages: 515942 [ 6.455883][ T0] Policy zone: DMA32 [ 6.474580][ 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=apparmor lsm=lockdown,yama,safesetid,integrity,tomoyo,apparmor,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 [ 6.796538][ T0] mem auto-init: stack:off, heap alloc:on, heap free:off [ 7.635761][ T0] Memory: 1503356K/2096620K available (116743K kernel code, 17674K rwdata, 21636K rodata, 2792K init, 23936K bss, 593008K reserved, 0K cma-reserved) [ 7.737490][ T0] Running RCU self tests [ 7.747055][ T0] rcu: Preemptible hierarchical RCU implementation. [ 7.769695][ T0] rcu: RCU lockdep checking is enabled. [ 7.787235][ T0] rcu: RCU restricting CPUs from NR_CPUS=64 to nr_cpu_ids=8. [ 7.802562][ T0] rcu: RCU callback double-/use-after-free debug enabled. [ 7.818975][ T0] rcu: RCU debug extended QS entry/exit. [ 7.844698][ T0] All grace periods are expedited (rcu_expedited). [ 7.865979][ T0] Trampoline variant of Tasks RCU enabled. [ 7.881740][ T0] rcu: RCU calculated value of scheduler-enlistment delay is 10 jiffies. [ 7.897271][ T0] rcu: Adjusting geometry for rcu_fanout_leaf=16, nr_cpu_ids=8 [ 7.929774][ T0] NR_IRQS: 4352, nr_irqs: 488, preallocated irqs: 16 [ 7.959133][ T0] random: get_random_bytes called from start_kernel+0x23b/0x46a with crng_init=0 [ 8.101305][ T0] Console: colour VGA+ 80x25 [ 8.152095][ T0] printk: console [ttyS0] enabled [ 8.152095][ T0] printk: console [ttyS0] enabled [ 8.188178][ T0] printk: bootconsole [earlyser0] disabled [ 8.188178][ T0] printk: bootconsole [earlyser0] disabled [ 8.227276][ T0] Lock dependency validator: Copyright (c) 2006 Red Hat, Inc., Ingo Molnar [ 8.254308][ T0] ... MAX_LOCKDEP_SUBCLASSES: 8 [ 8.268575][ T0] ... MAX_LOCK_DEPTH: 48 [ 8.284326][ T0] ... MAX_LOCKDEP_KEYS: 8192 [ 8.292152][ T0] ... CLASSHASH_SIZE: 4096 [ 8.301563][ T0] ... MAX_LOCKDEP_ENTRIES: 32768 [ 8.309721][ T0] ... MAX_LOCKDEP_CHAINS: 65536 [ 8.326587][ T0] ... CHAINHASH_SIZE: 32768 [ 8.346523][ T0] memory used by lock dependency info: 6301 kB [ 8.367240][ T0] memory used for stack traces: 4224 kB [ 8.376832][ T0] per task-struct memory footprint: 1920 bytes [ 8.389187][ T0] mempolicy: Enabling automatic NUMA balancing. Configure with numa_balancing= or the kernel.numa_balancing sysctl [ 8.414922][ T0] ACPI: Core revision 20200717 [ 8.439283][ T0] clocksource: hpet: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604467 ns [ 8.477414][ T0] APIC: Switch to symmetric I/O mode setup [ 8.503643][ T0] x2apic enabled [ 8.520359][ T0] Switched APIC routing to physical x2apic. [ 8.538241][ T0] kvm-guest: setup PV IPIs [ 8.598990][ T0] ..TIMER: vector=0x30 apic1=0 pin1=2 apic2=-1 pin2=-1 [ 8.615400][ T0] clocksource: tsc-early: mask: 0xffffffffffffffff max_cycles: 0x1cd4c92266a, max_idle_ns: 440795223404 ns [ 8.648603][ T0] Calibrating delay loop (skipped) preset value.. 4000.32 BogoMIPS (lpj=20001640) [ 8.659931][ T0] pid_max: default: 32768 minimum: 301 [ 8.671066][ T0] LSM: Security Framework initializing [ 8.677974][ T0] LSM: security= is ignored because it is superseded by lsm= [ 8.688281][ T0] Yama: becoming mindful. [ 8.696634][ T0] TOMOYO Linux initialized [ 8.711005][ T0] AppArmor: AppArmor initialized [ 8.717758][ T0] LSM support for eBPF active [ 8.738843][ T0] Dentry cache hash table entries: 262144 (order: 9, 2097152 bytes, vmalloc) [ 8.762609][ T0] Inode-cache hash table entries: 131072 (order: 8, 1048576 bytes, vmalloc) [ 8.768945][ T0] Mount-cache hash table entries: 4096 (order: 3, 32768 bytes, vmalloc) [ 8.778055][ T0] Mountpoint-cache hash table entries: 4096 (order: 3, 32768 bytes, vmalloc) [ 8.938790][ T0] x86/cpu: User Mode Instruction Prevention (UMIP) activated [ 8.970786][ T0] Last level iTLB entries: 4KB 0, 2MB 0, 4MB 0 [ 8.977732][ T0] Last level dTLB entries: 4KB 0, 2MB 0, 4MB 0, 1GB 0 [ 8.990060][ T0] Spectre V1 : Mitigation: usercopy/swapgs barriers and __user pointer sanitization [ 8.998418][ T0] Spectre V2 : Spectre mitigation: kernel not compiled with retpoline; no mitigation available! [ 9.007872][ T0] Speculative Store Bypass: Mitigation: Speculative Store Bypass disabled via prctl [ 9.029194][ T0] TAA: Mitigation: Clear CPU buffers [ 9.047727][ T0] MDS: Mitigation: Clear CPU buffers [ 9.135055][ T0] Freeing SMP alternatives memory: 104K [ 9.513750][ T1] smpboot: CPU0: Intel(R) Xeon(R) CPU @ 2.00GHz (family: 0x6, model: 0x55, stepping: 0x3) [ 9.562113][ T1] Performance Events: unsupported p6 CPU model 85 no PMU driver, software events only. [ 9.587715][ T1] rcu: Hierarchical SRCU implementation. [ 9.617715][ T1] dyndbg: Ignore empty _ddebug table in a CONFIG_DYNAMIC_DEBUG_CORE build [ 9.627611][ T1] NMI watchdog: Perf NMI watchdog permanently disabled [ 9.652251][ T1] smp: Bringing up secondary CPUs ... [ 9.689315][ T1] x86: Booting SMP configuration: [ 9.698269][ T1] .... node #0, CPUs: #1 [ 0.612494][ T0] kvm-clock: cpu 1, msr becf041, secondary cpu clock [ 9.779562][ T15] kvm-guest: stealtime: cpu 1, msr 2cf20a40 [ 9.820065][ 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. [ 9.829490][ 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. [ 9.856685][ T1] #2 [ 0.612494][ T0] kvm-clock: cpu 2, msr becf081, secondary cpu clock [ 9.909031][ T20] kvm-guest: stealtime: cpu 2, msr 2d020a40 [ 9.957630][ T1] #3 [ 0.612494][ T0] kvm-clock: cpu 3, msr becf0c1, secondary cpu clock [ 10.028939][ T25] kvm-guest: stealtime: cpu 3, msr 2d120a40 [ 10.038289][ T1] smp: Brought up 2 nodes, 4 CPUs [ 10.047938][ T1] smpboot: Max logical packages: 2 [ 10.057784][ T1] smpboot: Total of 4 processors activated (16001.31 BogoMIPS) [ 10.135554][ T1] devtmpfs: initialized [ 10.169242][ T1] x86/mm: Memory block size: 128MB [ 10.349230][ T1] clocksource: jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604462750000 ns [ 10.396794][ T33] kworker/u17:1 (33) used greatest stack depth: 27544 bytes left [ 10.414120][ T1] futex hash table entries: 2048 (order: 6, 262144 bytes, vmalloc) [ 10.520902][ T1] xor: automatically using best checksumming function avx [ 10.599848][ T1] PM: RTC time: 23:38:49, date: 2020-08-18 [ 10.669833][ T1] NET: Registered protocol family 16 [ 10.701963][ T1] audit: initializing netlink subsys (disabled) [ 10.731721][ T41] audit: type=2000 audit(1597793928.798:1): state=initialized audit_enabled=0 res=1 [ 10.752944][ T49] kworker/u17:1 (49) used greatest stack depth: 27144 bytes left [ 10.771921][ T1] thermal_sys: Registered thermal governor 'step_wise' [ 10.771928][ T1] thermal_sys: Registered thermal governor 'user_space' [ 10.878315][ T1] cpuidle: using governor menu [ 10.902066][ T1] NET: Registered protocol family 42 [ 10.951001][ T1] ACPI: bus type PCI registered [ 10.975460][ T1] dca service started, version 1.12.1 [ 10.990556][ T1] PCI: MMCONFIG for domain 0000 [bus 00-ff] at [mem 0xb0000000-0xbfffffff] (base 0xb0000000) [ 10.999774][ T1] PCI: MMCONFIG at [mem 0xb0000000-0xbfffffff] reserved in E820 [ 11.584644][ T1] PCI: Using configuration type 1 for base access [ 12.534316][ T1] HugeTLB registered 2.00 MiB page size, pre-allocated 0 pages [ 12.872201][ T1] cryptd: max_cpu_qlen set to 1000 [ 13.415575][ T1] raid6: avx512x4 gen() 11528 MB/s [ 13.627738][ T1] raid6: avx512x4 xor() 4708 MB/s [ 13.832506][ T1] raid6: avx512x2 gen() 9832 MB/s [ 14.048289][ T1] raid6: avx512x2 xor() 5133 MB/s [ 14.227506][ T1] raid6: avx512x1 gen() 7197 MB/s [ 14.416964][ T1] raid6: avx512x1 xor() 2788 MB/s [ 14.607733][ T1] raid6: avx2x4 gen() 9513 MB/s [ 14.791524][ T1] raid6: avx2x4 xor() 4364 MB/s [ 15.005294][ T1] raid6: avx2x2 gen() 5609 MB/s [ 15.204965][ T1] raid6: avx2x2 xor() 2686 MB/s [ 15.402094][ T1] raid6: avx2x1 gen() 3820 MB/s [ 15.603320][ T1] raid6: avx2x1 xor() 1449 MB/s [ 15.810954][ T1] raid6: sse2x4 gen() 4532 MB/s [ 16.035485][ T1] raid6: sse2x4 xor() 2344 MB/s [ 16.247508][ T1] raid6: sse2x2 gen() 2564 MB/s [ 16.439424][ T1] raid6: sse2x2 xor() 1311 MB/s [ 16.630635][ T1] raid6: sse2x1 gen() 1929 MB/s [ 16.836630][ T1] raid6: sse2x1 xor() 715 MB/s [ 16.857878][ T1] raid6: using algorithm avx512x4 gen() 11528 MB/s [ 16.887939][ T1] raid6: .... xor() 4708 MB/s, rmw enabled [ 16.918450][ T1] raid6: using avx512x2 recovery algorithm [ 16.959446][ T1] ACPI: Added _OSI(Module Device) [ 16.988181][ T1] ACPI: Added _OSI(Processor Device) [ 17.017925][ T1] ACPI: Added _OSI(3.0 _SCP Extensions) [ 17.048004][ T1] ACPI: Added _OSI(Processor Aggregator Device) [ 17.078013][ T1] ACPI: Added _OSI(Linux-Dell-Video) [ 17.108035][ T1] ACPI: Added _OSI(Linux-Lenovo-NV-HDMI-Audio) [ 17.148455][ T1] ACPI: Added _OSI(Linux-HPI-Hybrid-Graphics) [ 17.290654][ T1] ACPI: 2 ACPI AML tables successfully acquired and loaded [ 17.490848][ T1] ACPI: Interpreter enabled [ 17.541827][ T1] ACPI: (supports S0 S3 S4 S5) [ 17.579094][ T1] ACPI: Using IOAPIC for interrupt routing [ 17.614415][ T1] PCI: Using host bridge windows from ACPI; if necessary, use "pci=nocrs" and report a bug [ 17.653947][ T1] ACPI: Enabled 3 GPEs in block 00 to 3F [ 17.918581][ T1] ACPI: PCI Root Bridge [PCI0] (domain 0000 [bus 00-ff]) [ 17.961864][ T1] acpi PNP0A08:00: _OSC: OS supports [ExtendedConfig ASPM ClockPM Segments MSI HPX-Type3] [ 18.042037][ T1] acpi PNP0A08:00: _OSC: platform does not support [LTR] [ 18.082296][ T1] acpi PNP0A08:00: _OSC: OS now controls [PCIeHotplug PME AER PCIeCapability] [ 18.186384][ T1] PCI host bridge to bus 0000:00 [ 18.228712][ T1] pci_bus 0000:00: Unknown NUMA node; performance will be reduced [ 18.278231][ T1] pci_bus 0000:00: root bus resource [io 0x0000-0x0cf7 window] [ 18.327969][ T1] pci_bus 0000:00: root bus resource [io 0x0d00-0xffff window] [ 18.378043][ T1] pci_bus 0000:00: root bus resource [mem 0x000a0000-0x000bffff window] [ 18.427983][ T1] pci_bus 0000:00: root bus resource [mem 0x80000000-0xafffffff window] [ 18.477888][ T1] pci_bus 0000:00: root bus resource [mem 0xc0000000-0xfebfffff window] [ 18.538027][ T1] pci_bus 0000:00: root bus resource [mem 0x580000000-0xd7fffffff window] [ 18.590050][ T1] pci_bus 0000:00: root bus resource [bus 00-ff] [ 18.650002][ T1] pci 0000:00:00.0: [8086:29c0] type 00 class 0x060000 [ 18.729455][ T1] pci 0000:00:01.0: [1234:1111] type 00 class 0x030000 [ 18.837715][ T1] pci 0000:00:01.0: reg 0x10: [mem 0xfd000000-0xfdffffff pref] [ 18.987715][ T1] pci 0000:00:01.0: reg 0x18: [mem 0xfebf8000-0xfebf8fff] [ 19.197715][ T1] pci 0000:00:01.0: reg 0x30: [mem 0xfebe0000-0xfebeffff pref] [ 19.523737][ T1] pci 0000:00:02.0: [8086:10d3] type 00 class 0x020000 [ 19.582631][ T1] pci 0000:00:02.0: reg 0x10: [mem 0xfeb80000-0xfeb9ffff] [ 19.649716][ T1] pci 0000:00:02.0: reg 0x14: [mem 0xfeba0000-0xfebbffff] [ 19.709770][ T1] pci 0000:00:02.0: reg 0x18: [io 0xc680-0xc69f] [ 19.743976][ T1] pci 0000:00:02.0: reg 0x1c: [mem 0xfebf0000-0xfebf3fff] [ 19.797925][ T1] pci 0000:00:02.0: reg 0x30: [mem 0xfeb00000-0xfeb3ffff pref] [ 19.915184][ T1] pci 0000:00:03.0: [8086:100e] type 00 class 0x020000 [ 19.953893][ T1] pci 0000:00:03.0: reg 0x10: [mem 0xfebc0000-0xfebdffff] [ 19.992259][ T1] pci 0000:00:03.0: reg 0x14: [io 0xc600-0xc63f] [ 20.044183][ T1] pci 0000:00:03.0: reg 0x30: [mem 0xfeb40000-0xfeb7ffff pref] [ 20.087510][ T1] pci 0000:00:04.0: [1274:5000] type 00 class 0x040100 [ 20.121647][ T1] pci 0000:00:04.0: reg 0x10: [io 0xc400-0xc4ff] [ 20.168252][ T1] pci 0000:00:05.0: [8086:2415] type 00 class 0x040100 [ 20.194322][ T1] pci 0000:00:05.0: reg 0x10: [io 0xc000-0xc3ff] [ 20.255693][ T1] pci 0000:00:05.0: reg 0x14: [io 0xc500-0xc5ff] [ 20.330581][ T1] pci 0000:00:06.0: [8086:2668] type 00 class 0x040300 [ 20.363759][ T1] pci 0000:00:06.0: reg 0x10: [mem 0xfebf4000-0xfebf7fff] [ 20.415998][ T1] pci 0000:00:07.0: [1af4:1009] type 00 class 0x000200 [ 20.442832][ T1] pci 0000:00:07.0: reg 0x10: [io 0xc6a0-0xc6bf] [ 20.487121][ T1] pci 0000:00:07.0: reg 0x14: [mem 0xfebf9000-0xfebf9fff] [ 20.541517][ T1] pci 0000:00:07.0: reg 0x20: [mem 0xfe000000-0xfe003fff 64bit pref] [ 20.620351][ T1] pci 0000:00:1d.0: [8086:2934] type 00 class 0x0c0300 [ 20.665891][ T1] pci 0000:00:1d.0: reg 0x20: [io 0xc6c0-0xc6df] [ 20.729278][ T1] pci 0000:00:1d.1: [8086:2935] type 00 class 0x0c0300 [ 20.774729][ T1] pci 0000:00:1d.1: reg 0x20: [io 0xc6e0-0xc6ff] [ 20.811061][ T1] pci 0000:00:1d.2: [8086:2936] type 00 class 0x0c0300 [ 20.856280][ T1] pci 0000:00:1d.2: reg 0x20: [io 0xc700-0xc71f] [ 20.911055][ T1] pci 0000:00:1d.7: [8086:293a] type 00 class 0x0c0320 [ 20.930989][ T1] pci 0000:00:1d.7: reg 0x10: [mem 0xfebfa000-0xfebfafff] [ 21.004924][ T1] pci 0000:00:1f.0: [8086:2918] type 00 class 0x060100 [ 21.067173][ T1] pci 0000:00:1f.0: quirk: [io 0x0600-0x067f] claimed by ICH6 ACPI/GPIO/TCO [ 21.103193][ T1] pci 0000:00:1f.0: quirk_ich7_lpc+0x0/0x190 took 39062 usecs [ 21.187452][ T1] pci 0000:00:1f.2: [8086:2922] type 00 class 0x010601 [ 21.267048][ T1] pci 0000:00:1f.2: reg 0x20: [io 0xc720-0xc73f] [ 21.310576][ T1] pci 0000:00:1f.2: reg 0x24: [mem 0xfebfb000-0xfebfbfff] [ 21.390394][ T1] pci 0000:00:1f.3: [8086:2930] type 00 class 0x0c0500 [ 21.470671][ T1] pci 0000:00:1f.3: reg 0x20: [io 0x0700-0x073f] [ 22.096305][ T1] ACPI: PCI Interrupt Link [LNKA] (IRQs 5 *10 11) [ 22.162157][ T1] ACPI: PCI Interrupt Link [LNKB] (IRQs 5 *10 11) [ 22.202041][ T1] ACPI: PCI Interrupt Link [LNKC] (IRQs 5 10 *11) [ 22.252755][ T1] ACPI: PCI Interrupt Link [LNKD] (IRQs 5 10 *11) [ 22.313411][ T1] ACPI: PCI Interrupt Link [LNKE] (IRQs 5 *10 11) [ 22.383735][ T1] ACPI: PCI Interrupt Link [LNKF] (IRQs 5 *10 11) [ 22.412974][ T1] ACPI: PCI Interrupt Link [LNKG] (IRQs 5 10 *11) [ 22.451628][ T1] ACPI: PCI Interrupt Link [LNKH] (IRQs 5 10 *11) [ 22.479208][ T1] ACPI: PCI Interrupt Link [GSIA] (IRQs *16) [ 22.498249][ T1] ACPI: PCI Interrupt Link [GSIB] (IRQs *17) [ 22.518595][ T1] ACPI: PCI Interrupt Link [GSIC] (IRQs *18) [ 22.538342][ T1] ACPI: PCI Interrupt Link [GSID] (IRQs *19) [ 22.569718][ T1] ACPI: PCI Interrupt Link [GSIE] (IRQs *20) [ 22.608340][ T1] ACPI: PCI Interrupt Link [GSIF] (IRQs *21) [ 22.638608][ T1] ACPI: PCI Interrupt Link [GSIG] (IRQs *22) [ 22.678645][ T1] ACPI: PCI Interrupt Link [GSIH] (IRQs *23) [ 22.809251][ T1] iommu: Default domain type: Translated [ 22.875604][ T1] pci 0000:00:01.0: vgaarb: setting as boot VGA device [ 22.877715][ T1] pci 0000:00:01.0: vgaarb: VGA device added: decodes=io+mem,owns=io+mem,locks=none [ 22.938043][ T1] pci 0000:00:01.0: vgaarb: bridge control possible [ 22.968130][ T1] vgaarb: loaded [ 23.049280][ T1] SCSI subsystem initialized [ 23.080007][ T1] ACPI: bus type USB registered [ 23.100987][ T1] usbcore: registered new interface driver usbfs [ 23.118661][ T1] usbcore: registered new interface driver hub [ 23.138635][ T1] usbcore: registered new device driver usb [ 23.161331][ T1] mc: Linux media interface: v0.10 [ 23.168162][ T1] videodev: Linux video capture interface: v2.00 [ 23.197716][ T1] pps_core: LinuxPPS API ver. 1 registered [ 23.217971][ T1] pps_core: Software ver. 5.3.6 - Copyright 2005-2007 Rodolfo Giometti [ 23.248135][ T1] PTP clock support registered [ 23.277942][ T1] EDAC MC: Ver: 3.0.0 [ 23.320252][ T1] Advanced Linux Sound Architecture Driver Initialized. [ 23.405090][ T1] Bluetooth: Core ver 2.22 [ 23.443367][ T1] NET: Registered protocol family 31 [ 23.468256][ T1] Bluetooth: HCI device and connection manager initialized [ 23.499331][ T1] Bluetooth: HCI socket layer initialized [ 23.530869][ T1] Bluetooth: L2CAP socket layer initialized [ 23.548308][ T1] Bluetooth: SCO socket layer initialized [ 23.558202][ T1] NET: Registered protocol family 8 [ 23.567800][ T1] NET: Registered protocol family 20 [ 23.593769][ T1] NetLabel: Initializing [ 23.608125][ T1] NetLabel: domain hash size = 128 [ 23.627813][ T1] NetLabel: protocols = UNLABELED CIPSOv4 CALIPSO [ 23.655767][ T1] NetLabel: unlabeled traffic allowed by default [ 23.692889][ T1] nfc: nfc_init: NFC Core ver 0.1 [ 23.709717][ T1] NET: Registered protocol family 39 [ 23.750896][ T1] PCI: Using ACPI for IRQ routing [ 25.879891][ T1] hpet0: at MMIO 0xfed00000, IRQs 2, 8, 0 [ 25.917969][ T1] hpet0: 3 comparators, 64-bit 100.000000 MHz counter [ 25.959407][ T1] clocksource: Switched to clocksource kvm-clock [ 29.464303][ T1] VFS: Disk quotas dquot_6.6.0 [ 29.478948][ T1] VFS: Dquot-cache hash table entries: 512 (order 0, 4096 bytes) [ 29.502805][ T1] FS-Cache: Loaded [ 29.520532][ T1] CacheFiles: Loaded [ 29.540949][ T1] TOMOYO: 2.6.0 [ 29.553367][ T1] Mandatory Access Control activated. [ 29.571625][ T1] AppArmor: AppArmor Filesystem Enabled [ 29.592766][ T1] pnp: PnP ACPI init [ 29.659926][ T1] pnp: PnP ACPI: found 6 devices [ 29.852496][ T1] clocksource: acpi_pm: mask: 0xffffff max_cycles: 0xffffff, max_idle_ns: 2085701024 ns [ 29.918665][ T1] NET: Registered protocol family 2 [ 29.986714][ T1] tcp_listen_portaddr_hash hash table entries: 1024 (order: 4, 81920 bytes, vmalloc) [ 30.029372][ T1] TCP established hash table entries: 16384 (order: 5, 131072 bytes, vmalloc) [ 30.071062][ T1] TCP bind hash table entries: 16384 (order: 8, 1179648 bytes, vmalloc) [ 30.101526][ T1] TCP: Hash tables configured (established 16384 bind 16384) [ 30.139562][ T1] MPTCP token hash table entries: 2048 (order: 5, 180224 bytes, vmalloc) [ 30.170675][ T1] UDP hash table entries: 1024 (order: 5, 163840 bytes, vmalloc) [ 30.192625][ T1] UDP-Lite hash table entries: 1024 (order: 5, 163840 bytes, vmalloc) [ 30.222311][ T1] NET: Registered protocol family 1 [ 30.260618][ T1] RPC: Registered named UNIX socket transport module. [ 30.282014][ T1] RPC: Registered udp transport module. [ 30.313767][ T1] RPC: Registered tcp transport module. [ 30.350812][ T1] RPC: Registered tcp NFSv4.1 backchannel transport module. [ 30.390083][ T1] NET: Registered protocol family 44 [ 30.444154][ T1] pci_bus 0000:00: resource 4 [io 0x0000-0x0cf7 window] [ 30.501634][ T1] pci_bus 0000:00: resource 5 [io 0x0d00-0xffff window] [ 30.534369][ T1] pci_bus 0000:00: resource 6 [mem 0x000a0000-0x000bffff window] [ 30.572391][ T1] pci_bus 0000:00: resource 7 [mem 0x80000000-0xafffffff window] [ 30.635673][ T1] pci_bus 0000:00: resource 8 [mem 0xc0000000-0xfebfffff window] [ 30.693176][ T1] pci_bus 0000:00: resource 9 [mem 0x580000000-0xd7fffffff window] [ 30.764306][ T1] pci 0000:00:01.0: Video device with shadowed ROM at [mem 0x000c0000-0x000dffff] [ 30.827110][ T1] pci 0000:00:01.0: pci_fixup_video+0x0/0x270 took 65236 usecs [ 30.896898][ T1] PCI Interrupt Link [GSIA] enabled at IRQ 16 [ 31.021541][ T1] pci 0000:00:1d.0: quirk_usb_early_handoff+0x0/0x105b took 145077 usecs [ 31.096237][ T1] PCI Interrupt Link [GSIB] enabled at IRQ 17 [ 31.142878][ T1] pci 0000:00:1d.1: quirk_usb_early_handoff+0x0/0x105b took 64158 usecs [ 31.200100][ T1] PCI Interrupt Link [GSIC] enabled at IRQ 18 [ 31.245586][ T1] pci 0000:00:1d.2: quirk_usb_early_handoff+0x0/0x105b took 66463 usecs [ 31.307688][ T1] PCI Interrupt Link [GSID] enabled at IRQ 19 [ 31.369457][ T1] pci 0000:00:1d.7: quirk_usb_early_handoff+0x0/0x105b took 74423 usecs [ 31.422802][ T1] PCI: CLS 0 bytes, default 64 [ 31.532022][ T1] PCI-DMA: Using software bounce buffering for IO (SWIOTLB) [ 31.577400][ T1] software IO TLB: mapped [mem 0x7ac00000-0x7ec00000] (64MB) [ 31.663649][ T1] kvm: no hardware support [ 31.702491][ T1] has_svm: not amd or hygon [ 31.734096][ T1] kvm: no hardware support [ 31.761229][ T1] clocksource: tsc: mask: 0xffffffffffffffff max_cycles: 0x1cd4c92266a, max_idle_ns: 440795223404 ns [ 31.806081][ T1] clocksource: Switched to clocksource tsc [ 31.841112][ T1] mce: Machine check injector initialized [ 31.902671][ T1] check: Scanning for low memory corruption every 60 seconds [ 32.466151][ T1] Initialise system trusted keyrings [ 32.497475][ T1] workingset: timestamp_bits=40 max_order=19 bucket_order=0 [ 32.543436][ T1] zbud: loaded [ 32.602404][ T1] DLM installed [ 32.621540][ T1] squashfs: version 4.0 (2009/01/31) Phillip Lougher [ 32.676378][ T1] FS-Cache: Netfs 'nfs' registered for caching [ 32.724876][ T1] NFS: Registering the id_resolver key type [ 32.742145][ T1] Key type id_resolver registered [ 32.755384][ T1] Key type id_legacy registered [ 32.774362][ T1] nfs4filelayout_init: NFSv4 File Layout Driver Registering... [ 32.800965][ T1] Installing knfsd (copyright (C) 1996 okir@monad.swb.de). [ 32.851673][ T1] FS-Cache: Netfs 'cifs' registered for caching [ 32.908251][ T1] Key type cifs.spnego registered [ 32.930703][ T1] Key type cifs.idmap registered [ 32.954891][ T1] ntfs: driver 2.1.32 [Flags: R/W]. [ 32.978689][ T1] fuse: init (API version 7.31) [ 33.013907][ T1] JFS: nTxBlock = 8192, nTxLock = 65536 [ 33.144488][ T1] SGI XFS with ACLs, security attributes, realtime, quota, no debug enabled [ 33.212216][ T1] 9p: Installing v9fs 9p2000 file system support [ 33.233471][ T1] FS-Cache: Netfs '9p' registered for caching [ 33.276424][ T1] ocfs2: Registered cluster interface o2cb [ 33.301261][ T1] ocfs2: Registered cluster interface user [ 33.325413][ T1] OCFS2 User DLM kernel interface loaded [ 33.395517][ T1] gfs2: GFS2 installed [ 33.450013][ T1] FS-Cache: Netfs 'ceph' registered for caching [ 33.483458][ T1] ceph: loaded (mds proto 32) [ 33.535494][ T1] NET: Registered protocol family 38 [ 33.567445][ T1] async_tx: api initialized (async) [ 33.596759][ T1] Key type asymmetric registered [ 33.621783][ T1] Asymmetric key parser 'x509' registered [ 33.655290][ T1] Asymmetric key parser 'pkcs8' registered [ 33.692881][ T1] Key type pkcs7_test registered [ 33.720909][ T1] Asymmetric key parser 'tpm_parser' registered [ 33.742735][ T1] Block layer SCSI generic (bsg) driver version 0.4 loaded (major 243) [ 33.782373][ T1] io scheduler mq-deadline registered [ 33.805362][ T1] io scheduler kyber registered [ 33.825321][ T1] io scheduler bfq registered [ 33.892772][ T1] hgafb: HGA card not detected. [ 33.914415][ T1] hgafb: probe of hgafb.0 failed with error -22 [ 33.949279][ T1] usbcore: registered new interface driver udlfb [ 34.006646][ T1] uvesafb: failed to execute /sbin/v86d [ 34.040737][ T1] uvesafb: make sure that the v86d helper is installed and executable [ 34.071498][ T1] uvesafb: Getting VBE info block failed (eax=0x4f00, err=-2) [ 34.106601][ T1] uvesafb: vbe_init() failed with -22 [ 34.127520][ T1] uvesafb: probe of uvesafb.0 failed with error -22 [ 34.156995][ T1] vga16fb: mapped to 0x000000009a134191 [ 68.172683][ T1] Console: switching to colour frame buffer device 80x30 [ 131.737380][ T1] fb0: VGA16 VGA frame buffer device [ 132.125783][ T1] input: Power Button as /devices/LNXSYSTM:00/LNXPWRBN:00/input/input0 [ 132.378277][ T1] ACPI: Power Button [PWRF] [ 133.002569][ T7] ================================================================== [ 133.009744][ T7] BUG: KASAN: global-out-of-bounds in internal_create_group+0x9d8/0xb20 [ 133.009744][ T7] Read of size 8 at addr ffffffff8a2e73d0 by task kworker/u17:0/7 [ 133.009744][ T7] [ 133.009744][ T7] CPU: 0 PID: 7 Comm: kworker/u17:0 Not tainted 5.9.0-rc1-syzkaller #0 [ 133.009744][ T7] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS rel-1.12.0-59-gc9ba5276e321-prebuilt.qemu.org 04/01/2014 [ 133.009744][ T7] Workqueue: events_unbound async_run_entry_fn [ 133.009744][ T7] Call Trace: [ 133.009744][ T7] dump_stack+0x18f/0x20d [ 133.009744][ T7] ? internal_create_group+0x9d8/0xb20 [ 133.009744][ T7] ? internal_create_group+0x9d8/0xb20 [ 133.009744][ T7] print_address_description.constprop.0.cold+0x5/0x497 [ 133.009744][ T7] ? vprintk_func+0x97/0x1a6 [ 133.009744][ T7] ? internal_create_group+0x9d8/0xb20 [ 133.678595][ T7] ? internal_create_group+0x9d8/0xb20 [ 133.678595][ T7] kasan_report.cold+0x1f/0x37 [ 133.678595][ T7] ? internal_create_group+0x9d8/0xb20 [ 133.678595][ T7] ? state_show+0xf0/0xf0 [ 133.678595][ T7] internal_create_group+0x9d8/0xb20 [ 133.678595][ T7] ? sysfs_remove_group+0x170/0x170 [ 133.678595][ T7] internal_create_groups.part.0+0x90/0x140 [ 133.678595][ T7] sysfs_create_groups+0x25/0x50 [ 133.678595][ T7] device_add+0x7fd/0x1c40 [ 133.678595][ T7] ? devlink_add_symlinks+0x450/0x450 [ 133.678595][ T7] ? lock_release+0x8e0/0x8e0 [ 133.678595][ T7] ? lock_downgrade+0x830/0x830 [ 133.678595][ T7] ? __schedule+0x88e/0x21e0 [ 133.678595][ T7] ? nd_synchronize+0x20/0x20 [ 133.678595][ T7] nd_async_device_register+0x12/0x80 [ 133.678595][ T7] async_run_entry_fn+0x121/0x530 [ 133.678595][ T7] process_one_work+0x94c/0x1670 [ 133.678595][ T7] ? lock_release+0x8e0/0x8e0 [ 133.678595][ T7] ? pwq_dec_nr_in_flight+0x2d0/0x2d0 [ 133.678595][ T7] ? rwlock_bug.part.0+0x90/0x90 [ 133.678595][ T7] worker_thread+0x64c/0x1120 [ 133.678595][ T7] ? process_one_work+0x1670/0x1670 [ 133.678595][ T7] kthread+0x3b5/0x4a0 [ 133.678595][ T7] ? __kthread_bind_mask+0xc0/0xc0 [ 133.678595][ T7] ? __kthread_bind_mask+0xc0/0xc0 [ 133.678595][ T7] ret_from_fork+0x1f/0x30 [ 133.678595][ T7] [ 133.678595][ T7] The buggy address belongs to the variable: [ 133.678595][ T7] nvdimm_firmware_attributes+0x10/0x40 [ 133.678595][ T7] [ 133.678595][ T7] Memory state around the buggy address: [ 133.678595][ T7] ffffffff8a2e7280: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 133.678595][ T7] ffffffff8a2e7300: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 133.678595][ T7] >ffffffff8a2e7380: 00 00 00 00 f9 f9 f9 f9 00 00 f9 f9 f9 f9 f9 f9 [ 133.678595][ T7] ^ [ 133.678595][ T7] ffffffff8a2e7400: 00 00 00 00 00 00 00 f9 f9 f9 f9 f9 00 00 00 00 [ 133.678595][ T7] ffffffff8a2e7480: 00 00 00 f9 f9 f9 f9 f9 00 00 00 00 00 00 00 f9 [ 133.678595][ T7] ================================================================== [ 133.678595][ T7] Disabling lock debugging due to kernel taint [ 134.578463][ T7] Kernel panic - not syncing: panic_on_warn set ... [ 134.587867][ T7] CPU: 0 PID: 7 Comm: kworker/u17:0 Tainted: G B 5.9.0-rc1-syzkaller #0 [ 134.587867][ T7] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS rel-1.12.0-59-gc9ba5276e321-prebuilt.qemu.org 04/01/2014 [ 134.587867][ T7] Workqueue: events_unbound async_run_entry_fn [ 134.587867][ T7] Call Trace: [ 134.587867][ T7] dump_stack+0x18f/0x20d [ 134.587867][ T7] ? internal_create_group+0x960/0xb20 [ 134.587867][ T7] panic+0x2e3/0x75c [ 134.587867][ T7] ? __warn_printk+0xf3/0xf3 [ 134.587867][ T7] ? preempt_schedule_common+0x59/0xc0 [ 134.587867][ T7] ? internal_create_group+0x9d8/0xb20 [ 134.587867][ T7] ? preempt_schedule_thunk+0x16/0x18 [ 134.587867][ T7] ? trace_hardirqs_on+0x55/0x220 [ 134.587867][ T7] ? internal_create_group+0x9d8/0xb20 [ 134.587867][ T7] ? internal_create_group+0x9d8/0xb20 [ 134.587867][ T7] end_report+0x4d/0x53 [ 134.587867][ T7] kasan_report.cold+0xd/0x37 [ 134.587867][ T7] ? internal_create_group+0x9d8/0xb20 [ 134.587867][ T7] ? state_show+0xf0/0xf0 [ 134.587867][ T7] internal_create_group+0x9d8/0xb20 [ 134.587867][ T7] ? sysfs_remove_group+0x170/0x170 [ 134.587867][ T7] internal_create_groups.part.0+0x90/0x140 [ 134.587867][ T7] sysfs_create_groups+0x25/0x50 [ 134.587867][ T7] device_add+0x7fd/0x1c40 [ 134.587867][ T7] ? devlink_add_symlinks+0x450/0x450 [ 134.587867][ T7] ? lock_release+0x8e0/0x8e0 [ 134.587867][ T7] ? lock_downgrade+0x830/0x830 [ 134.587867][ T7] ? __schedule+0x88e/0x21e0 [ 134.587867][ T7] ? nd_synchronize+0x20/0x20 [ 134.587867][ T7] nd_async_device_register+0x12/0x80 [ 134.587867][ T7] async_run_entry_fn+0x121/0x530 [ 134.587867][ T7] process_one_work+0x94c/0x1670 [ 134.587867][ T7] ? lock_release+0x8e0/0x8e0 [ 134.587867][ T7] ? pwq_dec_nr_in_flight+0x2d0/0x2d0 [ 134.587867][ T7] ? rwlock_bug.part.0+0x90/0x90 [ 134.587867][ T7] worker_thread+0x64c/0x1120 [ 134.587867][ T7] ? process_one_work+0x1670/0x1670 [ 134.587867][ T7] kthread+0x3b5/0x4a0 [ 134.587867][ T7] ? __kthread_bind_mask+0xc0/0xc0 [ 134.587867][ T7] ? __kthread_bind_mask+0xc0/0xc0 [ 134.587867][ T7] ret_from_fork+0x1f/0x30 [ 134.587867][ T7] Kernel Offset: disabled [ 134.587867][ T7] Rebooting in 86400 seconds..