[ 0.000000][ T0] Linux version 5.9.0-rc2-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 [ 0.000095][ T0] kvm-clock: cpu 0, msr bed2001, primary cpu clock [ 0.000095][ T0] kvm-clock: using sched offset of 18689983938 cycles [ 0.030316][ T0] clocksource: kvm-clock: mask: 0xffffffffffffffff max_cycles: 0x1cd42e4dffb, max_idle_ns: 881590591483 ns [ 0.122128][ T0] tsc: Detected 2000.164 MHz processor [ 0.178194][ T0] last_pfn = 0x7ffdd max_arch_pfn = 0x400000000 [ 0.210752][ T0] x86/PAT: Configuration [0-7]: WB WC UC- UC WB WP UC- WT [ 0.256679][ T0] found SMP MP-table at [mem 0x000f5a50-0x000f5a5f] [ 0.311372][ T0] check: Scanning 1 areas for low memory corruption [ 0.366907][ T0] ACPI: Early table checksum verification disabled [ 0.422295][ T0] ACPI: RSDP 0x00000000000F5880 000014 (v00 BOCHS ) [ 0.463252][ T0] ACPI: RSDT 0x000000007FFE1F9D 000040 (v01 BOCHS BXPCRSDT 00000001 BXPC 00000001) [ 0.529192][ T0] ACPI: FACP 0x000000007FFE1860 0000F4 (v03 BOCHS BXPCFACP 00000001 BXPC 00000001) [ 0.576883][ T0] ACPI: DSDT 0x000000007FFDF040 002820 (v01 BOCHS BXPCDSDT 00000001 BXPC 00000001) [ 0.623144][ T0] ACPI: FACS 0x000000007FFDF000 000040 [ 0.642818][ T0] ACPI: APIC 0x000000007FFE1954 0000B0 (v01 BOCHS BXPCAPIC 00000001 BXPC 00000001) [ 0.679584][ T0] ACPI: HPET 0x000000007FFE1A04 000038 (v01 BOCHS BXPCHPET 00000001 BXPC 00000001) [ 0.745007][ T0] ACPI: SRAT 0x000000007FFE1A3C 000178 (v01 BOCHS BXPCSRAT 00000001 BXPC 00000001) [ 0.816808][ T0] ACPI: MCFG 0x000000007FFE1BB4 00003C (v01 BOCHS BXPCMCFG 00000001 BXPC 00000001) [ 0.897888][ T0] ACPI: SSDT 0x000000007FFE1BF0 0002CD (v01 BOCHS NVDIMM 00000001 BXPC 00000001) [ 0.981177][ T0] ACPI: NFIT 0x000000007FFE1EBD 0000E0 (v01 BOCHS BXPCNFIT 00000001 BXPC 00000001) [ 1.061911][ T0] SRAT: PXM 0 -> APIC 0x00 -> Node 0 [ 1.095507][ T0] SRAT: PXM 0 -> APIC 0x01 -> Node 0 [ 1.129365][ T0] SRAT: PXM 0 -> APIC 0x02 -> Node 0 [ 1.159551][ T0] SRAT: PXM 0 -> APIC 0x03 -> Node 0 [ 1.191263][ T0] SRAT: PXM 1 -> APIC 0x04 -> Node 1 [ 1.229340][ T0] SRAT: PXM 1 -> APIC 0x05 -> Node 1 [ 1.271179][ T0] SRAT: PXM 1 -> APIC 0x06 -> Node 1 [ 1.312725][ T0] SRAT: PXM 1 -> APIC 0x07 -> Node 1 [ 1.353585][ T0] ACPI: SRAT: Node 0 PXM 0 [mem 0x00000000-0x0009ffff] [ 1.396938][ T0] ACPI: SRAT: Node 0 PXM 0 [mem 0x00100000-0x3fffffff] [ 1.438457][ T0] ACPI: SRAT: Node 1 PXM 1 [mem 0x40000000-0x7fffffff] [ 1.482857][ T0] ACPI: SRAT: Node 1 PXM 1 [mem 0x100000000-0x57fffffff] hotplug [ 1.539086][ T0] NUMA: Node 0 [mem 0x00000000-0x0009ffff] + [mem 0x00100000-0x3fffffff] -> [mem 0x00000000-0x3fffffff] [ 1.620124][ T0] Faking node 0 at [mem 0x0000000000000000-0x000000003fffffff] (1024MB) [ 1.689095][ T0] Faking node 1 at [mem 0x0000000040000000-0x000000007ffdcfff] (1023MB) [ 1.758940][ T0] NODE_DATA(0) allocated [mem 0x3fffb000-0x3fffffff] [ 1.802987][ T0] NODE_DATA(1) allocated [mem 0x7ffd7000-0x7ffdbfff] [ 1.926150][ T0] Zone ranges: [ 1.945773][ T0] DMA [mem 0x0000000000001000-0x0000000000ffffff] [ 1.968497][ T0] DMA32 [mem 0x0000000001000000-0x000000007ffdcfff] [ 1.997844][ T0] Normal empty [ 2.011044][ T0] Device empty [ 2.027102][ T0] Movable zone start for each node [ 2.049040][ T0] Early memory node ranges [ 2.063226][ T0] node 0: [mem 0x0000000000001000-0x000000000009efff] [ 2.089355][ T0] node 0: [mem 0x0000000000100000-0x000000003fffffff] [ 2.118874][ T0] node 1: [mem 0x0000000040000000-0x000000007ffdcfff] [ 2.148916][ T0] Zeroed struct page in unavailable ranges: 133 pages [ 2.148963][ T0] Initmem setup node 0 [mem 0x0000000000001000-0x000000003fffffff] [ 2.262102][ T0] Initmem setup node 1 [mem 0x0000000040000000-0x000000007ffdcfff] [ 6.184961][ T0] kasan: KernelAddressSanitizer initialized [ 6.248560][ T0] ACPI: PM-Timer IO Port: 0x608 [ 6.274712][ T0] ACPI: LAPIC_NMI (acpi_id[0xff] dfl dfl lint[0x1]) [ 6.316343][ T0] IOAPIC[0]: apic_id 0, version 17, address 0xfec00000, GSI 0-23 [ 6.357411][ T0] ACPI: INT_SRC_OVR (bus 0 bus_irq 0 global_irq 2 dfl dfl) [ 6.396375][ T0] ACPI: INT_SRC_OVR (bus 0 bus_irq 5 global_irq 5 high level) [ 6.434616][ T0] ACPI: INT_SRC_OVR (bus 0 bus_irq 9 global_irq 9 high level) [ 6.469304][ T0] ACPI: INT_SRC_OVR (bus 0 bus_irq 10 global_irq 10 high level) [ 6.507766][ T0] ACPI: INT_SRC_OVR (bus 0 bus_irq 11 global_irq 11 high level) [ 6.549345][ T0] Using ACPI (MADT) for SMP configuration information [ 6.591758][ T0] ACPI: HPET id: 0x8086a201 base: 0xfed00000 [ 6.628262][ T0] TSC deadline timer available [ 6.654088][ T0] smpboot: Allowing 8 CPUs, 4 hotplug CPUs [ 6.689663][ T0] kvm-guest: KVM setup pv remote TLB flush [ 6.721253][ T0] PM: hibernation: Registered nosave memory: [mem 0x00000000-0x00000fff] [ 6.756980][ T0] PM: hibernation: Registered nosave memory: [mem 0x0009f000-0x0009ffff] [ 6.799567][ T0] PM: hibernation: Registered nosave memory: [mem 0x000a0000-0x000effff] [ 6.838984][ T0] PM: hibernation: Registered nosave memory: [mem 0x000f0000-0x000fffff] [ 6.881307][ T0] [mem 0xc0000000-0xfed1bfff] available for PCI devices [ 6.914634][ T0] Booting paravirtualized kernel on KVM [ 6.947903][ T0] clocksource: refined-jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604462750000 ns [ 7.062548][ T0] setup_percpu: NR_CPUS:64 nr_cpumask_bits:64 nr_cpu_ids:8 nr_node_ids:2 [ 7.154221][ T0] percpu: Embedded 65 pages/cpu s226696 r8192 d31352 u1048576 [ 7.186155][ T0] kvm-guest: stealtime: cpu 0, msr 2ce20a40 [ 7.208886][ T0] kvm-guest: PV spinlocks enabled [ 7.226445][ T0] PV qspinlock hash table entries: 256 (order: 0, 4096 bytes, linear) [ 7.257107][ T0] Built 2 zonelists, mobility grouping on. Total pages: 515942 [ 7.282326][ T0] Policy zone: DMA32 [ 7.293996][ 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 [ 7.603791][ T0] mem auto-init: stack:off, heap alloc:on, heap free:off [ 8.432412][ T0] Memory: 1503356K/2096620K available (116743K kernel code, 17681K rwdata, 21640K rodata, 2792K init, 23924K bss, 593008K reserved, 0K cma-reserved) [ 8.647376][ T0] Running RCU self tests [ 8.680348][ T0] rcu: Preemptible hierarchical RCU implementation. [ 8.715491][ T0] rcu: RCU lockdep checking is enabled. [ 8.743286][ T0] rcu: RCU restricting CPUs from NR_CPUS=64 to nr_cpu_ids=8. [ 8.780539][ T0] rcu: RCU callback double-/use-after-free debug enabled. [ 8.814178][ T0] rcu: RCU debug extended QS entry/exit. [ 8.841028][ T0] All grace periods are expedited (rcu_expedited). [ 8.877669][ T0] Trampoline variant of Tasks RCU enabled. [ 8.918242][ T0] rcu: RCU calculated value of scheduler-enlistment delay is 10 jiffies. [ 8.958316][ T0] rcu: Adjusting geometry for rcu_fanout_leaf=16, nr_cpu_ids=8 [ 9.051171][ T0] NR_IRQS: 4352, nr_irqs: 488, preallocated irqs: 16 [ 9.146539][ T0] random: get_random_bytes called from start_kernel+0x23b/0x46a with crng_init=0 [ 9.572263][ T0] Console: colour VGA+ 80x25 [ 9.663040][ T0] printk: console [ttyS0] enabled [ 9.663040][ T0] printk: console [ttyS0] enabled [ 9.730259][ T0] printk: bootconsole [earlyser0] disabled [ 9.730259][ T0] printk: bootconsole [earlyser0] disabled [ 9.803040][ T0] Lock dependency validator: Copyright (c) 2006 Red Hat, Inc., Ingo Molnar [ 9.869310][ T0] ... MAX_LOCKDEP_SUBCLASSES: 8 [ 9.896398][ T0] ... MAX_LOCK_DEPTH: 48 [ 9.928031][ T0] ... MAX_LOCKDEP_KEYS: 8192 [ 9.954604][ T0] ... CLASSHASH_SIZE: 4096 [ 9.982011][ T0] ... MAX_LOCKDEP_ENTRIES: 32768 [ 10.008459][ T0] ... MAX_LOCKDEP_CHAINS: 65536 [ 10.033785][ T0] ... CHAINHASH_SIZE: 32768 [ 10.062127][ T0] memory used by lock dependency info: 6301 kB [ 10.091383][ T0] memory used for stack traces: 4224 kB [ 10.119974][ T0] per task-struct memory footprint: 1920 bytes [ 10.157971][ T0] mempolicy: Enabling automatic NUMA balancing. Configure with numa_balancing= or the kernel.numa_balancing sysctl [ 10.215776][ T0] ACPI: Core revision 20200717 [ 10.259379][ T0] clocksource: hpet: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604467 ns [ 10.333005][ T0] APIC: Switch to symmetric I/O mode setup [ 10.376374][ T0] x2apic enabled [ 10.409021][ T0] Switched APIC routing to physical x2apic. [ 10.433594][ T0] kvm-guest: setup PV IPIs [ 10.541313][ T0] ..TIMER: vector=0x30 apic1=0 pin1=2 apic2=-1 pin2=-1 [ 10.594730][ T0] clocksource: tsc-early: mask: 0xffffffffffffffff max_cycles: 0x1cd4c92266a, max_idle_ns: 440795223404 ns [ 10.667461][ T0] Calibrating delay loop (skipped) preset value.. 4000.32 BogoMIPS (lpj=20001640) [ 10.677544][ T0] pid_max: default: 32768 minimum: 301 [ 10.705135][ T0] LSM: Security Framework initializing [ 10.707001][ T0] LSM: security= is ignored because it is superseded by lsm= [ 10.717590][ T0] Yama: becoming mindful. [ 10.741070][ T0] TOMOYO Linux initialized [ 10.767240][ T0] AppArmor: AppArmor initialized [ 10.776479][ T0] LSM support for eBPF active [ 10.825326][ T0] Dentry cache hash table entries: 262144 (order: 9, 2097152 bytes, vmalloc) [ 10.842339][ T0] Inode-cache hash table entries: 131072 (order: 8, 1048576 bytes, vmalloc) [ 10.848226][ T0] Mount-cache hash table entries: 4096 (order: 3, 32768 bytes, vmalloc) [ 10.856771][ T0] Mountpoint-cache hash table entries: 4096 (order: 3, 32768 bytes, vmalloc) [ 11.004775][ T0] x86/cpu: User Mode Instruction Prevention (UMIP) activated [ 11.033361][ T0] Last level iTLB entries: 4KB 0, 2MB 0, 4MB 0 [ 11.036430][ T0] Last level dTLB entries: 4KB 0, 2MB 0, 4MB 0, 1GB 0 [ 11.049216][ T0] Spectre V1 : Mitigation: usercopy/swapgs barriers and __user pointer sanitization [ 11.057003][ T0] Spectre V2 : Spectre mitigation: kernel not compiled with retpoline; no mitigation available! [ 11.057109][ T0] Speculative Store Bypass: Mitigation: Speculative Store Bypass disabled via prctl [ 11.077482][ T0] TAA: Mitigation: Clear CPU buffers [ 11.086426][ T0] MDS: Mitigation: Clear CPU buffers [ 11.172039][ T0] Freeing SMP alternatives memory: 104K [ 11.452544][ T1] smpboot: CPU0: Intel(R) Xeon(R) CPU @ 2.00GHz (family: 0x6, model: 0x55, stepping: 0x3) [ 11.494751][ T1] Performance Events: unsupported p6 CPU model 85 no PMU driver, software events only. [ 11.510559][ T1] rcu: Hierarchical SRCU implementation. [ 11.530118][ T1] dyndbg: Ignore empty _ddebug table in a CONFIG_DYNAMIC_DEBUG_CORE build [ 11.544503][ T1] NMI watchdog: Perf NMI watchdog permanently disabled [ 11.570589][ T1] smp: Bringing up secondary CPUs ... [ 11.617054][ T1] x86: Booting SMP configuration: [ 11.626922][ T1] .... node #0, CPUs: #1 [ 1.427093][ T0] kvm-clock: cpu 1, msr bed2041, secondary cpu clock [ 11.732121][ T15] kvm-guest: stealtime: cpu 1, msr 2cf20a40 [ 11.778147][ 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. [ 11.787850][ 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. [ 11.829734][ T1] #2 [ 1.427093][ T0] kvm-clock: cpu 2, msr bed2081, secondary cpu clock [ 11.908612][ T20] kvm-guest: stealtime: cpu 2, msr 2d020a40 [ 11.959442][ T1] #3 [ 1.427093][ T0] kvm-clock: cpu 3, msr bed20c1, secondary cpu clock [ 12.017358][ T25] kvm-guest: stealtime: cpu 3, msr 2d120a40 [ 12.037815][ T1] smp: Brought up 2 nodes, 4 CPUs [ 12.046815][ T1] smpboot: Max logical packages: 2 [ 12.056543][ T1] smpboot: Total of 4 processors activated (16001.31 BogoMIPS) [ 12.140292][ T1] devtmpfs: initialized [ 12.182071][ T1] x86/mm: Memory block size: 128MB [ 12.337830][ T1] clocksource: jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604462750000 ns [ 12.346415][ T33] kworker/u17:0 (33) used greatest stack depth: 27544 bytes left [ 12.355651][ T1] futex hash table entries: 2048 (order: 6, 262144 bytes, vmalloc) [ 12.379505][ T1] xor: automatically using best checksumming function avx [ 12.415999][ T1] PM: RTC time: 20:48:30, date: 2020-08-24 [ 12.454480][ T1] NET: Registered protocol family 16 [ 12.475411][ T1] audit: initializing netlink subsys (disabled) [ 12.494525][ T39] audit: type=2000 audit(1598302109.324:1): state=initialized audit_enabled=0 res=1 [ 12.529406][ T1] thermal_sys: Registered thermal governor 'step_wise' [ 12.529442][ T1] thermal_sys: Registered thermal governor 'user_space' [ 12.538673][ T1] cpuidle: using governor menu [ 12.566051][ T1] NET: Registered protocol family 42 [ 12.591492][ T1] ACPI: bus type PCI registered [ 12.611789][ T1] dca service started, version 1.12.1 [ 12.622828][ T1] PCI: MMCONFIG for domain 0000 [bus 00-ff] at [mem 0xb0000000-0xbfffffff] (base 0xb0000000) [ 12.626770][ T1] PCI: MMCONFIG at [mem 0xb0000000-0xbfffffff] reserved in E820 [ 13.265855][ T1] PCI: Using configuration type 1 for base access [ 13.980596][ T1] HugeTLB registered 2.00 MiB page size, pre-allocated 0 pages [ 14.128821][ T1] cryptd: max_cpu_qlen set to 1000 [ 14.437398][ T1] raid6: avx512x4 gen() 14367 MB/s [ 14.647463][ T1] raid6: avx512x4 xor() 6059 MB/s [ 14.851326][ T1] raid6: avx512x2 gen() 8098 MB/s [ 15.058306][ T1] raid6: avx512x2 xor() 4305 MB/s [ 15.272694][ T1] raid6: avx512x1 gen() 5915 MB/s [ 15.486744][ T1] raid6: avx512x1 xor() 2228 MB/s [ 15.706230][ T1] raid6: avx2x4 gen() 7783 MB/s [ 15.915051][ T1] raid6: avx2x4 xor() 3896 MB/s [ 16.127235][ T1] raid6: avx2x2 gen() 4769 MB/s [ 16.306796][ T1] raid6: avx2x2 xor() 2260 MB/s [ 16.486898][ T1] raid6: avx2x1 gen() 2767 MB/s [ 16.667825][ T1] raid6: avx2x1 xor() 1193 MB/s [ 16.868743][ T1] raid6: sse2x4 gen() 4608 MB/s [ 17.056831][ T1] raid6: sse2x4 xor() 2427 MB/s [ 17.264766][ T1] raid6: sse2x2 gen() 2949 MB/s [ 17.464533][ T1] raid6: sse2x2 xor() 1440 MB/s [ 17.655163][ T1] raid6: sse2x1 gen() 1851 MB/s [ 17.854982][ T1] raid6: sse2x1 xor() 738 MB/s [ 17.876609][ T1] raid6: using algorithm avx512x4 gen() 14367 MB/s [ 17.906568][ T1] raid6: .... xor() 6059 MB/s, rmw enabled [ 17.927091][ T1] raid6: using avx512x2 recovery algorithm [ 17.970860][ T1] ACPI: Added _OSI(Module Device) [ 17.996625][ T1] ACPI: Added _OSI(Processor Device) [ 18.016537][ T1] ACPI: Added _OSI(3.0 _SCP Extensions) [ 18.036584][ T1] ACPI: Added _OSI(Processor Aggregator Device) [ 18.066612][ T1] ACPI: Added _OSI(Linux-Dell-Video) [ 18.086560][ T1] ACPI: Added _OSI(Linux-Lenovo-NV-HDMI-Audio) [ 18.106550][ T1] ACPI: Added _OSI(Linux-HPI-Hybrid-Graphics) [ 18.213364][ T1] ACPI: 2 ACPI AML tables successfully acquired and loaded [ 18.341429][ T1] ACPI: Interpreter enabled [ 18.353167][ T1] ACPI: (supports S0 S3 S4 S5) [ 18.357108][ T1] ACPI: Using IOAPIC for interrupt routing [ 18.375552][ T1] PCI: Using host bridge windows from ACPI; if necessary, use "pci=nocrs" and report a bug [ 18.382432][ T1] ACPI: Enabled 3 GPEs in block 00 to 3F [ 18.590160][ T1] ACPI: PCI Root Bridge [PCI0] (domain 0000 [bus 00-ff]) [ 18.638447][ T1] acpi PNP0A08:00: _OSC: OS supports [ExtendedConfig ASPM ClockPM Segments MSI HPX-Type3] [ 18.685526][ T1] acpi PNP0A08:00: _OSC: platform does not support [LTR] [ 18.730406][ T1] acpi PNP0A08:00: _OSC: OS now controls [PCIeHotplug PME AER PCIeCapability] [ 18.788936][ T1] PCI host bridge to bus 0000:00 [ 18.806692][ T1] pci_bus 0000:00: Unknown NUMA node; performance will be reduced [ 18.826802][ T1] pci_bus 0000:00: root bus resource [io 0x0000-0x0cf7 window] [ 18.856580][ T1] pci_bus 0000:00: root bus resource [io 0x0d00-0xffff window] [ 18.886514][ T1] pci_bus 0000:00: root bus resource [mem 0x000a0000-0x000bffff window] [ 18.916583][ T1] pci_bus 0000:00: root bus resource [mem 0x80000000-0xafffffff window] [ 18.936649][ T1] pci_bus 0000:00: root bus resource [mem 0xc0000000-0xfebfffff window] [ 18.956594][ T1] pci_bus 0000:00: root bus resource [mem 0x580000000-0xd7fffffff window] [ 18.986677][ T1] pci_bus 0000:00: root bus resource [bus 00-ff] [ 19.002745][ T1] pci 0000:00:00.0: [8086:29c0] type 00 class 0x060000 [ 19.056557][ T1] pci 0000:00:01.0: [1234:1111] type 00 class 0x030000 [ 19.116415][ T1] pci 0000:00:01.0: reg 0x10: [mem 0xfd000000-0xfdffffff pref] [ 19.266415][ T1] pci 0000:00:01.0: reg 0x18: [mem 0xfebf8000-0xfebf8fff] [ 19.355826][ T1] pci 0000:00:01.0: reg 0x30: [mem 0xfebe0000-0xfebeffff pref] [ 19.563832][ T1] pci 0000:00:02.0: [8086:10d3] type 00 class 0x020000 [ 19.599887][ T1] pci 0000:00:02.0: reg 0x10: [mem 0xfeb80000-0xfeb9ffff] [ 19.646415][ T1] pci 0000:00:02.0: reg 0x14: [mem 0xfeba0000-0xfebbffff] [ 19.693150][ T1] pci 0000:00:02.0: reg 0x18: [io 0xc680-0xc69f] [ 19.743840][ T1] pci 0000:00:02.0: reg 0x1c: [mem 0xfebf0000-0xfebf3fff] [ 19.796645][ T1] pci 0000:00:02.0: reg 0x30: [mem 0xfeb00000-0xfeb3ffff pref] [ 19.891073][ T1] pci 0000:00:03.0: [8086:100e] type 00 class 0x020000 [ 19.922151][ T1] pci 0000:00:03.0: reg 0x10: [mem 0xfebc0000-0xfebdffff] [ 19.961247][ T1] pci 0000:00:03.0: reg 0x14: [io 0xc600-0xc63f] [ 20.002550][ T1] pci 0000:00:03.0: reg 0x30: [mem 0xfeb40000-0xfeb7ffff pref] [ 20.045686][ T1] pci 0000:00:04.0: [1274:5000] type 00 class 0x040100 [ 20.069477][ T1] pci 0000:00:04.0: reg 0x10: [io 0xc400-0xc4ff] [ 20.118611][ T1] pci 0000:00:05.0: [8086:2415] type 00 class 0x040100 [ 20.141410][ T1] pci 0000:00:05.0: reg 0x10: [io 0xc000-0xc3ff] [ 20.169343][ T1] pci 0000:00:05.0: reg 0x14: [io 0xc500-0xc5ff] [ 20.230057][ T1] pci 0000:00:06.0: [8086:2668] type 00 class 0x040300 [ 20.262538][ T1] pci 0000:00:06.0: reg 0x10: [mem 0xfebf4000-0xfebf7fff] [ 20.356353][ T1] pci 0000:00:07.0: [1af4:1009] type 00 class 0x000200 [ 20.430589][ T1] pci 0000:00:07.0: reg 0x10: [io 0xc6a0-0xc6bf] [ 20.494067][ T1] pci 0000:00:07.0: reg 0x14: [mem 0xfebf9000-0xfebf9fff] [ 20.569046][ T1] pci 0000:00:07.0: reg 0x20: [mem 0xfe000000-0xfe003fff 64bit pref] [ 20.693460][ T1] pci 0000:00:1d.0: [8086:2934] type 00 class 0x0c0300 [ 20.775613][ T1] pci 0000:00:1d.0: reg 0x20: [io 0xc6c0-0xc6df] [ 20.836061][ T1] pci 0000:00:1d.1: [8086:2935] type 00 class 0x0c0300 [ 20.912227][ T1] pci 0000:00:1d.1: reg 0x20: [io 0xc6e0-0xc6ff] [ 21.000824][ T1] pci 0000:00:1d.2: [8086:2936] type 00 class 0x0c0300 [ 21.075728][ T1] pci 0000:00:1d.2: reg 0x20: [io 0xc700-0xc71f] [ 21.163646][ T1] pci 0000:00:1d.7: [8086:293a] type 00 class 0x0c0320 [ 21.212855][ T1] pci 0000:00:1d.7: reg 0x10: [mem 0xfebfa000-0xfebfafff] [ 21.293194][ T1] pci 0000:00:1f.0: [8086:2918] type 00 class 0x060100 [ 21.374305][ T1] pci 0000:00:1f.0: quirk: [io 0x0600-0x067f] claimed by ICH6 ACPI/GPIO/TCO [ 21.434346][ T1] pci 0000:00:1f.0: quirk_ich7_lpc+0x0/0x190 took 68359 usecs [ 21.499647][ T1] pci 0000:00:1f.2: [8086:2922] type 00 class 0x010601 [ 21.574170][ T1] pci 0000:00:1f.2: reg 0x20: [io 0xc720-0xc73f] [ 21.646136][ T1] pci 0000:00:1f.2: reg 0x24: [mem 0xfebfb000-0xfebfbfff] [ 21.763245][ T1] pci 0000:00:1f.3: [8086:2930] type 00 class 0x0c0500 [ 21.854481][ T1] pci 0000:00:1f.3: reg 0x20: [io 0x0700-0x073f] [ 22.144965][ T1] ACPI: PCI Interrupt Link [LNKA] (IRQs 5 *10 11) [ 22.186064][ T1] ACPI: PCI Interrupt Link [LNKB] (IRQs 5 *10 11) [ 22.230115][ T1] ACPI: PCI Interrupt Link [LNKC] (IRQs 5 10 *11) [ 22.261075][ T1] ACPI: PCI Interrupt Link [LNKD] (IRQs 5 10 *11) [ 22.311011][ T1] ACPI: PCI Interrupt Link [LNKE] (IRQs 5 *10 11) [ 22.350620][ T1] ACPI: PCI Interrupt Link [LNKF] (IRQs 5 *10 11) [ 22.402591][ T1] ACPI: PCI Interrupt Link [LNKG] (IRQs 5 10 *11) [ 22.450498][ T1] ACPI: PCI Interrupt Link [LNKH] (IRQs 5 10 *11) [ 22.499482][ T1] ACPI: PCI Interrupt Link [GSIA] (IRQs *16) [ 22.547516][ T1] ACPI: PCI Interrupt Link [GSIB] (IRQs *17) [ 22.617124][ T1] ACPI: PCI Interrupt Link [GSIC] (IRQs *18) [ 22.667623][ T1] ACPI: PCI Interrupt Link [GSID] (IRQs *19) [ 22.717100][ T1] ACPI: PCI Interrupt Link [GSIE] (IRQs *20) [ 22.757112][ T1] ACPI: PCI Interrupt Link [GSIF] (IRQs *21) [ 22.807323][ T1] ACPI: PCI Interrupt Link [GSIG] (IRQs *22) [ 22.857269][ T1] ACPI: PCI Interrupt Link [GSIH] (IRQs *23) [ 23.133153][ T1] iommu: Default domain type: Translated [ 23.236785][ T1] pci 0000:00:01.0: vgaarb: setting as boot VGA device [ 23.236785][ T1] pci 0000:00:01.0: vgaarb: VGA device added: decodes=io+mem,owns=io+mem,locks=none [ 23.387313][ T1] pci 0000:00:01.0: vgaarb: bridge control possible [ 23.436878][ T1] vgaarb: loaded [ 23.546771][ T1] SCSI subsystem initialized [ 23.591463][ T1] ACPI: bus type USB registered [ 23.610067][ T1] usbcore: registered new interface driver usbfs [ 23.638154][ T1] usbcore: registered new interface driver hub [ 23.667636][ T1] usbcore: registered new device driver usb [ 23.693142][ T1] mc: Linux media interface: v0.10 [ 23.707035][ T1] videodev: Linux video capture interface: v2.00 [ 23.731017][ T1] pps_core: LinuxPPS API ver. 1 registered [ 23.746752][ T1] pps_core: Software ver. 5.3.6 - Copyright 2005-2007 Rodolfo Giometti [ 23.776849][ T1] PTP clock support registered [ 23.799538][ T1] EDAC MC: Ver: 3.0.0 [ 23.839722][ T1] Advanced Linux Sound Architecture Driver Initialized. [ 23.905455][ T1] Bluetooth: Core ver 2.22 [ 23.918603][ T1] NET: Registered protocol family 31 [ 23.936555][ T1] Bluetooth: HCI device and connection manager initialized [ 23.957800][ T1] Bluetooth: HCI socket layer initialized [ 23.986833][ T1] Bluetooth: L2CAP socket layer initialized [ 24.007485][ T1] Bluetooth: SCO socket layer initialized [ 24.038292][ T1] NET: Registered protocol family 8 [ 24.066597][ T1] NET: Registered protocol family 20 [ 24.089910][ T1] NetLabel: Initializing [ 24.116612][ T1] NetLabel: domain hash size = 128 [ 24.136584][ T1] NetLabel: protocols = UNLABELED CIPSOv4 CALIPSO [ 24.171427][ T1] NetLabel: unlabeled traffic allowed by default [ 24.198487][ T1] nfc: nfc_init: NFC Core ver 0.1 [ 24.229236][ T1] NET: Registered protocol family 39 [ 24.259781][ T1] PCI: Using ACPI for IRQ routing [ 26.339217][ T1] hpet0: at MMIO 0xfed00000, IRQs 2, 8, 0 [ 26.356517][ T1] hpet0: 3 comparators, 64-bit 100.000000 MHz counter [ 26.387430][ T1] clocksource: Switched to clocksource kvm-clock [ 30.501283][ T1] VFS: Disk quotas dquot_6.6.0 [ 30.515950][ T1] VFS: Dquot-cache hash table entries: 512 (order 0, 4096 bytes) [ 30.548767][ T1] FS-Cache: Loaded [ 30.570123][ T1] CacheFiles: Loaded [ 30.590273][ T1] TOMOYO: 2.6.0 [ 30.602175][ T1] Mandatory Access Control activated. [ 30.625834][ T1] AppArmor: AppArmor Filesystem Enabled [ 31.099639][ T1] pnp: PnP ACPI init [ 31.452098][ T1] pnp: PnP ACPI: found 6 devices [ 31.846966][ T1] clocksource: acpi_pm: mask: 0xffffff max_cycles: 0xffffff, max_idle_ns: 2085701024 ns [ 31.912780][ T1] NET: Registered protocol family 2 [ 32.007918][ T1] tcp_listen_portaddr_hash hash table entries: 1024 (order: 4, 81920 bytes, vmalloc) [ 32.097170][ T1] TCP established hash table entries: 16384 (order: 5, 131072 bytes, vmalloc) [ 32.173493][ T1] TCP bind hash table entries: 16384 (order: 8, 1179648 bytes, vmalloc) [ 32.214589][ T1] TCP: Hash tables configured (established 16384 bind 16384) [ 32.278442][ T1] MPTCP token hash table entries: 2048 (order: 5, 180224 bytes, vmalloc) [ 32.325446][ T1] UDP hash table entries: 1024 (order: 5, 163840 bytes, vmalloc) [ 32.373604][ T1] UDP-Lite hash table entries: 1024 (order: 5, 163840 bytes, vmalloc) [ 32.428531][ T1] NET: Registered protocol family 1 [ 32.486024][ T1] RPC: Registered named UNIX socket transport module. [ 32.515846][ T1] RPC: Registered udp transport module. [ 32.543855][ T1] RPC: Registered tcp transport module. [ 32.570358][ T1] RPC: Registered tcp NFSv4.1 backchannel transport module. [ 32.681458][ T1] NET: Registered protocol family 44 [ 32.761165][ T1] pci_bus 0000:00: resource 4 [io 0x0000-0x0cf7 window] [ 32.832538][ T1] pci_bus 0000:00: resource 5 [io 0x0d00-0xffff window] [ 32.885896][ T1] pci_bus 0000:00: resource 6 [mem 0x000a0000-0x000bffff window] [ 32.939790][ T1] pci_bus 0000:00: resource 7 [mem 0x80000000-0xafffffff window] [ 32.995307][ T1] pci_bus 0000:00: resource 8 [mem 0xc0000000-0xfebfffff window] [ 33.046236][ T1] pci_bus 0000:00: resource 9 [mem 0x580000000-0xd7fffffff window] [ 33.154688][ T1] pci 0000:00:01.0: Video device with shadowed ROM at [mem 0x000c0000-0x000dffff] [ 33.228697][ T1] pci 0000:00:01.0: pci_fixup_video+0x0/0x270 took 98222 usecs [ 33.525143][ T1] PCI Interrupt Link [GSIA] enabled at IRQ 16 [ 33.713532][ T1] pci 0000:00:1d.0: quirk_usb_early_handoff+0x0/0x105b took 392816 usecs [ 33.843647][ T1] PCI Interrupt Link [GSIB] enabled at IRQ 17 [ 33.910700][ T1] pci 0000:00:1d.1: quirk_usb_early_handoff+0x0/0x105b took 116115 usecs [ 34.022718][ T1] PCI Interrupt Link [GSIC] enabled at IRQ 18 [ 34.128084][ T1] pci 0000:00:1d.2: quirk_usb_early_handoff+0x0/0x105b took 123899 usecs [ 34.258163][ T1] PCI Interrupt Link [GSID] enabled at IRQ 19 [ 34.426235][ T1] pci 0000:00:1d.7: quirk_usb_early_handoff+0x0/0x105b took 200041 usecs [ 34.528626][ T1] PCI: CLS 0 bytes, default 64 [ 34.794501][ T1] PCI-DMA: Using software bounce buffering for IO (SWIOTLB) [ 34.890719][ T1] software IO TLB: mapped [mem 0x7ac00000-0x7ec00000] (64MB) [ 35.086374][ T1] kvm: no hardware support [ 35.144307][ T1] has_svm: not amd or hygon [ 35.196058][ T1] kvm: no hardware support [ 35.246007][ T1] clocksource: tsc: mask: 0xffffffffffffffff max_cycles: 0x1cd4c92266a, max_idle_ns: 440795223404 ns [ 35.374833][ T1] clocksource: Switched to clocksource tsc [ 35.442502][ T1] mce: Machine check injector initialized [ 35.613824][ T1] check: Scanning for low memory corruption every 60 seconds [ 36.377272][ T1] Initialise system trusted keyrings [ 36.460554][ T1] workingset: timestamp_bits=40 max_order=19 bucket_order=0 [ 36.539848][ T1] zbud: loaded [ 36.681393][ T1] DLM installed [ 36.725255][ T1] squashfs: version 4.0 (2009/01/31) Phillip Lougher [ 36.807403][ T1] FS-Cache: Netfs 'nfs' registered for caching [ 36.868535][ T1] NFS: Registering the id_resolver key type [ 36.912547][ T1] Key type id_resolver registered [ 36.945163][ T1] Key type id_legacy registered [ 36.984139][ T1] nfs4filelayout_init: NFSv4 File Layout Driver Registering... [ 37.035286][ T1] Installing knfsd (copyright (C) 1996 okir@monad.swb.de). [ 37.122694][ T1] FS-Cache: Netfs 'cifs' registered for caching [ 37.183584][ T1] Key type cifs.spnego registered [ 37.218291][ T1] Key type cifs.idmap registered [ 37.257506][ T1] ntfs: driver 2.1.32 [Flags: R/W]. [ 37.315810][ T1] fuse: init (API version 7.31) [ 37.396218][ T1] JFS: nTxBlock = 8192, nTxLock = 65536 [ 37.583537][ T1] SGI XFS with ACLs, security attributes, realtime, quota, no debug enabled [ 37.703856][ T1] 9p: Installing v9fs 9p2000 file system support [ 37.752604][ T1] FS-Cache: Netfs '9p' registered for caching [ 37.814198][ T1] ocfs2: Registered cluster interface o2cb [ 37.868278][ T1] ocfs2: Registered cluster interface user [ 37.952190][ T1] OCFS2 User DLM kernel interface loaded [ 38.070074][ T1] gfs2: GFS2 installed [ 38.163990][ T1] FS-Cache: Netfs 'ceph' registered for caching [ 38.218097][ T1] ceph: loaded (mds proto 32) [ 38.358705][ T1] NET: Registered protocol family 38 [ 38.416055][ T1] async_tx: api initialized (async) [ 38.460248][ T1] Key type asymmetric registered [ 38.509422][ T1] Asymmetric key parser 'x509' registered [ 38.558993][ T1] Asymmetric key parser 'pkcs8' registered [ 38.602906][ T1] Key type pkcs7_test registered [ 38.644794][ T1] Asymmetric key parser 'tpm_parser' registered [ 38.713707][ T1] Block layer SCSI generic (bsg) driver version 0.4 loaded (major 243) [ 38.833133][ T1] io scheduler mq-deadline registered [ 38.879160][ T1] io scheduler kyber registered [ 38.923987][ T1] io scheduler bfq registered [ 39.095905][ T1] hgafb: HGA card not detected. [ 39.150395][ T1] hgafb: probe of hgafb.0 failed with error -22 [ 39.220313][ T1] usbcore: registered new interface driver udlfb [ 39.405499][ T1] uvesafb: failed to execute /sbin/v86d [ 39.479557][ T1] uvesafb: make sure that the v86d helper is installed and executable [ 39.580380][ T1] uvesafb: Getting VBE info block failed (eax=0x4f00, err=-2) [ 39.665157][ T1] uvesafb: vbe_init() failed with -22 [ 39.754300][ T1] uvesafb: probe of uvesafb.0 failed with error -22 [ 39.864956][ T1] vga16fb: mapped to 0x0000000061ceafd3 [ 56.291520][ C3] hrtimer: interrupt took 97692111 ns [ 81.499876][ T1] Console: switching to colour frame buffer device 80x30 [ 116.601232][ T1] fb0: VGA16 VGA frame buffer device [ 116.739519][ T1] input: Power Button as /devices/LNXSYSTM:00/LNXPWRBN:00/input/input0 [ 116.823126][ T1] ACPI: Power Button [PWRF] [ 117.252729][ T197] ================================================================== [ 117.256944][ T197] BUG: KASAN: global-out-of-bounds in internal_create_group+0x9d8/0xb20 [ 117.256944][ T197] Read of size 8 at addr ffffffff8a2e8cf0 by task kworker/u17:7/197 [ 117.256944][ T197] [ 117.256944][ T197] CPU: 2 PID: 197 Comm: kworker/u17:7 Not tainted 5.9.0-rc2-syzkaller #0 [ 117.256944][ T197] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS rel-1.12.0-59-gc9ba5276e321-prebuilt.qemu.org 04/01/2014 [ 117.256944][ T197] Workqueue: events_unbound async_run_entry_fn [ 117.256944][ T197] Call Trace: [ 117.256944][ T197] dump_stack+0x18f/0x20d [ 117.256944][ T197] ? internal_create_group+0x9d8/0xb20 [ 117.256944][ T197] ? internal_create_group+0x9d8/0xb20 [ 117.256944][ T197] print_address_description.constprop.0.cold+0x5/0x497 [ 117.256944][ T197] ? vprintk_func+0x97/0x1a6 [ 117.256944][ T197] ? internal_create_group+0x9d8/0xb20 [ 117.256944][ T197] ? internal_create_group+0x9d8/0xb20 [ 117.256944][ T197] kasan_report.cold+0x1f/0x37 [ 117.256944][ T197] ? internal_create_group+0x9d8/0xb20 [ 117.256944][ T197] ? state_show+0xf0/0xf0 [ 117.256944][ T197] internal_create_group+0x9d8/0xb20 [ 117.256944][ T197] ? sysfs_remove_group+0x170/0x170 [ 117.256944][ T197] internal_create_groups.part.0+0x90/0x140 [ 117.256944][ T197] sysfs_create_groups+0x25/0x50 [ 117.256944][ T197] device_add+0x7fd/0x1c40 [ 117.256944][ T197] ? devlink_add_symlinks+0x450/0x450 [ 117.256944][ T197] ? lock_release+0x8e0/0x8e0 [ 117.256944][ T197] ? lock_downgrade+0x830/0x830 [ 117.256944][ T197] ? __schedule+0x88e/0x21e0 [ 117.256944][ T197] ? nd_synchronize+0x20/0x20 [ 117.256944][ T197] nd_async_device_register+0x12/0x80 [ 117.256944][ T197] async_run_entry_fn+0x121/0x530 [ 117.256944][ T197] process_one_work+0x94c/0x1670 [ 117.256944][ T197] ? lock_release+0x8e0/0x8e0 [ 117.256944][ T197] ? pwq_dec_nr_in_flight+0x2d0/0x2d0 [ 117.256944][ T197] ? rwlock_bug.part.0+0x90/0x90 [ 117.256944][ T197] worker_thread+0x64c/0x1120 [ 117.256944][ T197] ? process_one_work+0x1670/0x1670 [ 117.256944][ T197] kthread+0x3b5/0x4a0 [ 117.256944][ T197] ? __kthread_bind_mask+0xc0/0xc0 [ 117.256944][ T197] ? __kthread_bind_mask+0xc0/0xc0 [ 117.256944][ T197] ret_from_fork+0x1f/0x30 [ 117.256944][ T197] [ 117.256944][ T197] The buggy address belongs to the variable: [ 117.256944][ T197] nvdimm_firmware_attributes+0x10/0x40 [ 117.256944][ T197] [ 117.256944][ T197] Memory state around the buggy address: [ 117.256944][ T197] ffffffff8a2e8b80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 117.256944][ T197] ffffffff8a2e8c00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 117.256944][ T197] >ffffffff8a2e8c80: 00 00 00 00 00 00 00 00 f9 f9 f9 f9 00 00 f9 f9 [ 117.256944][ T197] ^ [ 117.256944][ T197] ffffffff8a2e8d00: f9 f9 f9 f9 00 00 00 00 00 00 00 f9 f9 f9 f9 f9 [ 117.256944][ T197] ffffffff8a2e8d80: 00 00 00 00 00 00 00 f9 f9 f9 f9 f9 00 00 00 00 [ 117.256944][ T197] ================================================================== [ 117.256944][ T197] Disabling lock debugging due to kernel taint [ 118.742430][ T197] Kernel panic - not syncing: panic_on_warn set ... [ 118.742489][ T197] CPU: 2 PID: 197 Comm: kworker/u17:7 Tainted: G B 5.9.0-rc2-syzkaller #0 [ 118.742494][ T197] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS rel-1.12.0-59-gc9ba5276e321-prebuilt.qemu.org 04/01/2014 [ 118.742726][ T197] Workqueue: events_unbound async_run_entry_fn [ 118.742730][ T197] Call Trace: [ 118.742743][ T197] dump_stack+0x18f/0x20d [ 118.742753][ T197] ? internal_create_group+0x910/0xb20 [ 118.742762][ T197] panic+0x2e3/0x75c [ 118.742770][ T197] ? __warn_printk+0xf3/0xf3 [ 118.742810][ T197] ? preempt_schedule_common+0x59/0xc0 [ 118.742818][ T197] ? internal_create_group+0x9d8/0xb20 [ 118.742827][ T197] ? preempt_schedule_thunk+0x16/0x18 [ 118.742873][ T197] ? trace_hardirqs_on+0x55/0x220 [ 118.742882][ T197] ? internal_create_group+0x9d8/0xb20 [ 118.742889][ T197] ? internal_create_group+0x9d8/0xb20 [ 118.742899][ T197] end_report+0x4d/0x53 [ 118.742906][ T197] kasan_report.cold+0xd/0x37 [ 118.742915][ T197] ? internal_create_group+0x9d8/0xb20 [ 118.742923][ T197] ? state_show+0xf0/0xf0 [ 118.742931][ T197] internal_create_group+0x9d8/0xb20 [ 118.742940][ T197] ? sysfs_remove_group+0x170/0x170 [ 118.742951][ T197] internal_create_groups.part.0+0x90/0x140 [ 118.742960][ T197] sysfs_create_groups+0x25/0x50 [ 118.742968][ T197] device_add+0x7fd/0x1c40 [ 118.742992][ T197] ? devlink_add_symlinks+0x450/0x450 [ 118.743001][ T197] ? lock_release+0x8e0/0x8e0 [ 118.743009][ T197] ? lock_downgrade+0x830/0x830 [ 118.743016][ T197] ? __schedule+0x88e/0x21e0 [ 118.743025][ T197] ? nd_synchronize+0x20/0x20 [ 118.743034][ T197] nd_async_device_register+0x12/0x80 [ 118.743042][ T197] async_run_entry_fn+0x121/0x530 [ 118.743053][ T197] process_one_work+0x94c/0x1670 [ 118.743062][ T197] ? lock_release+0x8e0/0x8e0 [ 118.743070][ T197] ? pwq_dec_nr_in_flight+0x2d0/0x2d0 [ 118.743078][ T197] ? rwlock_bug.part.0+0x90/0x90 [ 118.743088][ T197] worker_thread+0x64c/0x1120 [ 118.743099][ T197] ? process_one_work+0x1670/0x1670 [ 118.743106][ T197] kthread+0x3b5/0x4a0 [ 118.743114][ T197] ? __kthread_bind_mask+0xc0/0xc0 [ 118.743121][ T197] ? __kthread_bind_mask+0xc0/0xc0 [ 118.743143][ T197] ret_from_fork+0x1f/0x30 [ 118.746516][ T197] Kernel Offset: disabled [ 118.746516][ T197] Rebooting in 86400 seconds..