[ 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 [ 0.000012][ T0] kvm-clock: cpu 0, msr bed1001, primary cpu clock [ 0.000013][ T0] kvm-clock: using sched offset of 5872191593 cycles [ 0.007018][ T0] clocksource: kvm-clock: mask: 0xffffffffffffffff max_cycles: 0x1cd42e4dffb, max_idle_ns: 881590591483 ns [ 0.026516][ T0] tsc: Detected 2000.164 MHz processor [ 0.040558][ T0] last_pfn = 0x7ffdd max_arch_pfn = 0x400000000 [ 0.048780][ T0] x86/PAT: Configuration [0-7]: WB WC UC- UC WB WP UC- WT [ 0.069057][ T0] found SMP MP-table at [mem 0x000f5a40-0x000f5a4f] [ 0.076346][ T0] check: Scanning 1 areas for low memory corruption [ 0.085731][ T0] ACPI: Early table checksum verification disabled [ 0.092867][ T0] ACPI: RSDP 0x00000000000F5870 000014 (v00 BOCHS ) [ 0.099343][ T0] ACPI: RSDT 0x000000007FFE1F9D 000040 (v01 BOCHS BXPCRSDT 00000001 BXPC 00000001) [ 0.108750][ T0] ACPI: FACP 0x000000007FFE1860 0000F4 (v03 BOCHS BXPCFACP 00000001 BXPC 00000001) [ 0.117899][ T0] ACPI: DSDT 0x000000007FFDF040 002820 (v01 BOCHS BXPCDSDT 00000001 BXPC 00000001) [ 0.126980][ T0] ACPI: FACS 0x000000007FFDF000 000040 [ 0.132464][ T0] ACPI: APIC 0x000000007FFE1954 0000B0 (v01 BOCHS BXPCAPIC 00000001 BXPC 00000001) [ 0.141506][ T0] ACPI: HPET 0x000000007FFE1A04 000038 (v01 BOCHS BXPCHPET 00000001 BXPC 00000001) [ 0.150571][ T0] ACPI: SRAT 0x000000007FFE1A3C 000178 (v01 BOCHS BXPCSRAT 00000001 BXPC 00000001) [ 0.159687][ T0] ACPI: MCFG 0x000000007FFE1BB4 00003C (v01 BOCHS BXPCMCFG 00000001 BXPC 00000001) [ 0.168862][ T0] ACPI: SSDT 0x000000007FFE1BF0 0002CD (v01 BOCHS NVDIMM 00000001 BXPC 00000001) [ 0.177859][ T0] ACPI: NFIT 0x000000007FFE1EBD 0000E0 (v01 BOCHS BXPCNFIT 00000001 BXPC 00000001) [ 0.188660][ T0] SRAT: PXM 0 -> APIC 0x00 -> Node 0 [ 0.193699][ T0] SRAT: PXM 0 -> APIC 0x01 -> Node 0 [ 0.198823][ T0] SRAT: PXM 0 -> APIC 0x02 -> Node 0 [ 0.205633][ T0] SRAT: PXM 0 -> APIC 0x03 -> Node 0 [ 0.210875][ T0] SRAT: PXM 1 -> APIC 0x04 -> Node 1 [ 0.216641][ T0] SRAT: PXM 1 -> APIC 0x05 -> Node 1 [ 0.223046][ T0] SRAT: PXM 1 -> APIC 0x06 -> Node 1 [ 0.228240][ T0] SRAT: PXM 1 -> APIC 0x07 -> Node 1 [ 0.233636][ T0] ACPI: SRAT: Node 0 PXM 0 [mem 0x00000000-0x0009ffff] [ 0.240286][ T0] ACPI: SRAT: Node 0 PXM 0 [mem 0x00100000-0x3fffffff] [ 0.246861][ T0] ACPI: SRAT: Node 1 PXM 1 [mem 0x40000000-0x7fffffff] [ 0.253763][ T0] ACPI: SRAT: Node 1 PXM 1 [mem 0x100000000-0x57fffffff] hotplug [ 0.263325][ T0] NUMA: Node 0 [mem 0x00000000-0x0009ffff] + [mem 0x00100000-0x3fffffff] -> [mem 0x00000000-0x3fffffff] [ 0.275598][ T0] Faking node 0 at [mem 0x0000000000000000-0x000000003fffffff] (1024MB) [ 0.284387][ T0] Faking node 1 at [mem 0x0000000040000000-0x000000007ffdcfff] (1023MB) [ 0.293569][ T0] NODE_DATA(0) allocated [mem 0x3fffb000-0x3fffffff] [ 0.303357][ T0] NODE_DATA(1) allocated [mem 0x7ffd7000-0x7ffdbfff] [ 0.351912][ T0] Zone ranges: [ 0.356029][ T0] DMA [mem 0x0000000000001000-0x0000000000ffffff] [ 0.363677][ T0] DMA32 [mem 0x0000000001000000-0x000000007ffdcfff] [ 0.371011][ T0] Normal empty [ 0.374798][ T0] Device empty [ 0.378508][ T0] Movable zone start for each node [ 0.383616][ T0] Early memory node ranges [ 0.388005][ T0] node 0: [mem 0x0000000000001000-0x000000000009efff] [ 0.395486][ T0] node 0: [mem 0x0000000000100000-0x000000003fffffff] [ 0.402854][ T0] node 1: [mem 0x0000000040000000-0x000000007ffdcfff] [ 0.410441][ T0] Zeroed struct page in unavailable ranges: 133 pages [ 0.410453][ T0] Initmem setup node 0 [mem 0x0000000000001000-0x000000003fffffff] [ 0.432290][ T0] Initmem setup node 1 [mem 0x0000000040000000-0x000000007ffdcfff] [ 1.014650][ T0] kasan: KernelAddressSanitizer initialized [ 1.038793][ T0] ACPI: PM-Timer IO Port: 0x608 [ 1.045915][ T0] ACPI: LAPIC_NMI (acpi_id[0xff] dfl dfl lint[0x1]) [ 1.057031][ T0] IOAPIC[0]: apic_id 0, version 17, address 0xfec00000, GSI 0-23 [ 1.066520][ T0] ACPI: INT_SRC_OVR (bus 0 bus_irq 0 global_irq 2 dfl dfl) [ 1.075117][ T0] ACPI: INT_SRC_OVR (bus 0 bus_irq 5 global_irq 5 high level) [ 1.083581][ T0] ACPI: INT_SRC_OVR (bus 0 bus_irq 9 global_irq 9 high level) [ 1.092610][ T0] ACPI: INT_SRC_OVR (bus 0 bus_irq 10 global_irq 10 high level) [ 1.101700][ T0] ACPI: INT_SRC_OVR (bus 0 bus_irq 11 global_irq 11 high level) [ 1.111292][ T0] Using ACPI (MADT) for SMP configuration information [ 1.120199][ T0] ACPI: HPET id: 0x8086a201 base: 0xfed00000 [ 1.128426][ T0] TSC deadline timer available [ 1.135172][ T0] smpboot: Allowing 8 CPUs, 4 hotplug CPUs [ 1.143502][ T0] kvm-guest: KVM setup pv remote TLB flush [ 1.151661][ T0] PM: hibernation: Registered nosave memory: [mem 0x00000000-0x00000fff] [ 1.160836][ T0] PM: hibernation: Registered nosave memory: [mem 0x0009f000-0x0009ffff] [ 1.169977][ T0] PM: hibernation: Registered nosave memory: [mem 0x000a0000-0x000effff] [ 1.179145][ T0] PM: hibernation: Registered nosave memory: [mem 0x000f0000-0x000fffff] [ 1.188871][ T0] [mem 0xc0000000-0xfed1bfff] available for PCI devices [ 1.196506][ T0] Booting paravirtualized kernel on KVM [ 1.203623][ T0] clocksource: refined-jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604462750000 ns [ 1.267432][ T0] setup_percpu: NR_CPUS:64 nr_cpumask_bits:64 nr_cpu_ids:8 nr_node_ids:2 [ 1.291550][ T0] percpu: Embedded 65 pages/cpu s226696 r8192 d31352 u1048576 [ 1.303003][ T0] kvm-guest: stealtime: cpu 0, msr 2ce20a40 [ 1.309929][ T0] kvm-guest: PV spinlocks enabled [ 1.315507][ T0] PV qspinlock hash table entries: 256 (order: 0, 4096 bytes, linear) [ 1.327405][ T0] Built 2 zonelists, mobility grouping on. Total pages: 515942 [ 1.336611][ T0] Policy zone: DMA32 [ 1.341432][ 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 [ 1.427802][ T0] mem auto-init: stack:off, heap alloc:on, heap free:off [ 1.744292][ T0] Memory: 1503356K/2096620K available (116743K kernel code, 17679K rwdata, 21640K rodata, 2792K init, 23928K bss, 593008K reserved, 0K cma-reserved) [ 1.787314][ T0] Running RCU self tests [ 1.792201][ T0] rcu: Preemptible hierarchical RCU implementation. [ 1.799963][ T0] rcu: RCU lockdep checking is enabled. [ 1.806317][ T0] rcu: RCU restricting CPUs from NR_CPUS=64 to nr_cpu_ids=8. [ 1.814831][ T0] rcu: RCU callback double-/use-after-free debug enabled. [ 1.823477][ T0] rcu: RCU debug extended QS entry/exit. [ 1.829370][ T0] All grace periods are expedited (rcu_expedited). [ 1.836966][ T0] Trampoline variant of Tasks RCU enabled. [ 1.844086][ T0] rcu: RCU calculated value of scheduler-enlistment delay is 10 jiffies. [ 1.853943][ T0] rcu: Adjusting geometry for rcu_fanout_leaf=16, nr_cpu_ids=8 [ 1.874354][ T0] NR_IRQS: 4352, nr_irqs: 488, preallocated irqs: 16 [ 1.893143][ T0] random: get_random_bytes called from start_kernel+0x23b/0x46a with crng_init=0 [ 1.983671][ T0] Console: colour VGA+ 80x25 [ 2.002692][ T0] printk: console [ttyS0] enabled [ 2.002692][ T0] printk: console [ttyS0] enabled [ 2.015132][ T0] printk: bootconsole [earlyser0] disabled [ 2.015132][ T0] printk: bootconsole [earlyser0] disabled [ 2.029114][ T0] Lock dependency validator: Copyright (c) 2006 Red Hat, Inc., Ingo Molnar [ 2.039734][ T0] ... MAX_LOCKDEP_SUBCLASSES: 8 [ 2.045906][ T0] ... MAX_LOCK_DEPTH: 48 [ 2.051896][ T0] ... MAX_LOCKDEP_KEYS: 8192 [ 2.058314][ T0] ... CLASSHASH_SIZE: 4096 [ 2.064551][ T0] ... MAX_LOCKDEP_ENTRIES: 32768 [ 2.070833][ T0] ... MAX_LOCKDEP_CHAINS: 65536 [ 2.076986][ T0] ... CHAINHASH_SIZE: 32768 [ 2.083635][ T0] memory used by lock dependency info: 6301 kB [ 2.090980][ T0] memory used for stack traces: 4224 kB [ 2.098895][ T0] per task-struct memory footprint: 1920 bytes [ 2.108407][ T0] mempolicy: Enabling automatic NUMA balancing. Configure with numa_balancing= or the kernel.numa_balancing sysctl [ 2.125472][ T0] ACPI: Core revision 20200717 [ 2.140234][ T0] clocksource: hpet: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604467 ns [ 2.163933][ T0] APIC: Switch to symmetric I/O mode setup [ 2.176558][ T0] x2apic enabled [ 2.185494][ T0] Switched APIC routing to physical x2apic. [ 2.193195][ T0] kvm-guest: setup PV IPIs [ 2.224546][ T0] ..TIMER: vector=0x30 apic1=0 pin1=2 apic2=-1 pin2=-1 [ 2.234321][ T0] clocksource: tsc-early: mask: 0xffffffffffffffff max_cycles: 0x1cd4c92266a, max_idle_ns: 440795223404 ns [ 2.252347][ T0] Calibrating delay loop (skipped) preset value.. 4000.32 BogoMIPS (lpj=20001640) [ 2.262918][ T0] pid_max: default: 32768 minimum: 301 [ 2.275089][ T0] LSM: Security Framework initializing [ 2.282156][ T0] LSM: security= is ignored because it is superseded by lsm= [ 2.292563][ T0] Yama: becoming mindful. [ 2.303470][ T0] SELinux: Initializing. [ 2.314076][ T0] TOMOYO Linux initialized [ 2.320252][ T0] LSM support for eBPF active [ 2.333803][ T0] Dentry cache hash table entries: 262144 (order: 9, 2097152 bytes, vmalloc) [ 2.345913][ T0] Inode-cache hash table entries: 131072 (order: 8, 1048576 bytes, vmalloc) [ 2.352473][ T0] Mount-cache hash table entries: 4096 (order: 3, 32768 bytes, vmalloc) [ 2.362133][ T0] Mountpoint-cache hash table entries: 4096 (order: 3, 32768 bytes, vmalloc) [ 2.410875][ T0] x86/cpu: User Mode Instruction Prevention (UMIP) activated [ 2.425002][ T0] Last level iTLB entries: 4KB 0, 2MB 0, 4MB 0 [ 2.431968][ T0] Last level dTLB entries: 4KB 0, 2MB 0, 4MB 0, 1GB 0 [ 2.439681][ T0] Spectre V1 : Mitigation: usercopy/swapgs barriers and __user pointer sanitization [ 2.442152][ T0] Spectre V2 : Spectre mitigation: kernel not compiled with retpoline; no mitigation available! [ 2.442321][ T0] Speculative Store Bypass: Mitigation: Speculative Store Bypass disabled via prctl [ 2.462541][ T0] TAA: Mitigation: Clear CPU buffers [ 2.471965][ T0] MDS: Mitigation: Clear CPU buffers [ 2.507969][ T0] Freeing SMP alternatives memory: 104K [ 2.596503][ T1] smpboot: CPU0: Intel(R) Xeon(R) CPU @ 2.00GHz (family: 0x6, model: 0x55, stepping: 0x3) [ 2.617956][ T1] Performance Events: unsupported p6 CPU model 85 no PMU driver, software events only. [ 2.625801][ T1] rcu: Hierarchical SRCU implementation. [ 2.637314][ T1] dyndbg: Ignore empty _ddebug table in a CONFIG_DYNAMIC_DEBUG_CORE build [ 2.644706][ T1] NMI watchdog: Perf NMI watchdog permanently disabled [ 2.659180][ T1] smp: Bringing up secondary CPUs ... [ 2.672386][ T1] x86: Booting SMP configuration: [ 2.678373][ T1] .... node #0, CPUs: #1 [ 0.311119][ T0] kvm-clock: cpu 1, msr bed1041, secondary cpu clock [ 2.704660][ T15] kvm-guest: stealtime: cpu 1, msr 2cf20a40 [ 2.715023][ 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. [ 2.722056][ 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. [ 2.740538][ T1] #2 [ 0.311119][ T0] kvm-clock: cpu 2, msr bed1081, secondary cpu clock [ 2.758190][ T20] kvm-guest: stealtime: cpu 2, msr 2d020a40 [ 2.768585][ T1] #3 [ 0.311119][ T0] kvm-clock: cpu 3, msr bed10c1, secondary cpu clock [ 2.787986][ T25] kvm-guest: stealtime: cpu 3, msr 2d120a40 [ 2.792323][ T1] smp: Brought up 2 nodes, 4 CPUs [ 2.797563][ T1] smpboot: Max logical packages: 2 [ 2.802027][ T1] smpboot: Total of 4 processors activated (16001.31 BogoMIPS) [ 2.826303][ T1] devtmpfs: initialized [ 2.834497][ T1] x86/mm: Memory block size: 128MB [ 2.876664][ T1] clocksource: jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604462750000 ns [ 2.881954][ T33] kworker/u17:0 (33) used greatest stack depth: 27544 bytes left [ 2.883447][ T1] futex hash table entries: 2048 (order: 6, 262144 bytes, vmalloc) [ 2.895519][ T1] xor: automatically using best checksumming function avx [ 2.910152][ T1] PM: RTC time: 20:11:11, date: 2020-08-22 [ 2.920570][ T1] NET: Registered protocol family 16 [ 2.929716][ T1] audit: initializing netlink subsys (disabled) [ 2.934388][ T38] audit: type=2000 audit(1598127072.227:1): state=initialized audit_enabled=0 res=1 [ 2.940258][ T1] thermal_sys: Registered thermal governor 'step_wise' [ 2.940282][ T1] thermal_sys: Registered thermal governor 'user_space' [ 2.952131][ T1] cpuidle: using governor menu [ 2.966096][ T1] NET: Registered protocol family 42 [ 2.979025][ T1] ACPI: bus type PCI registered [ 2.986663][ T1] dca service started, version 1.12.1 [ 2.996422][ T1] PCI: MMCONFIG for domain 0000 [bus 00-ff] at [mem 0xb0000000-0xbfffffff] (base 0xb0000000) [ 3.012462][ T1] PCI: MMCONFIG at [mem 0xb0000000-0xbfffffff] reserved in E820 [ 3.183690][ T1] PCI: Using configuration type 1 for base access [ 3.223551][ T124] kworker/u17:2 (124) used greatest stack depth: 27104 bytes left [ 3.397714][ T696] kworker/u17:3 (696) used greatest stack depth: 26832 bytes left [ 3.536323][ T1] HugeTLB registered 2.00 MiB page size, pre-allocated 0 pages [ 3.584845][ T1] cryptd: max_cpu_qlen set to 1000 [ 3.812123][ T1] raid6: avx512x4 gen() 12149 MB/s [ 3.977387][ T1] raid6: avx512x4 xor() 5565 MB/s [ 4.145336][ T1] raid6: avx512x2 gen() 12256 MB/s [ 4.321970][ T1] raid6: avx512x2 xor() 6037 MB/s [ 4.484456][ T1] raid6: avx512x1 gen() 7963 MB/s [ 4.655221][ T1] raid6: avx512x1 xor() 2979 MB/s [ 4.826013][ T1] raid6: avx2x4 gen() 9756 MB/s [ 5.008926][ T1] raid6: avx2x4 xor() 2573 MB/s [ 5.182994][ T1] raid6: avx2x2 gen() 6116 MB/s [ 5.352061][ T1] raid6: avx2x2 xor() 3129 MB/s [ 5.513577][ T1] raid6: avx2x1 gen() 4040 MB/s [ 5.684771][ T1] raid6: avx2x1 xor() 1619 MB/s [ 5.856348][ T1] raid6: sse2x4 gen() 5040 MB/s [ 6.026995][ T1] raid6: sse2x4 xor() 1460 MB/s [ 6.198658][ T1] raid6: sse2x2 gen() 3202 MB/s [ 6.368231][ T1] raid6: sse2x2 xor() 1648 MB/s [ 6.537766][ T1] raid6: sse2x1 gen() 2035 MB/s [ 6.712074][ T1] raid6: sse2x1 xor() 820 MB/s [ 6.722023][ T1] raid6: using algorithm avx512x2 gen() 12256 MB/s [ 6.728926][ T1] raid6: .... xor() 6037 MB/s, rmw enabled [ 6.732028][ T1] raid6: using avx512x2 recovery algorithm [ 6.762004][ T1] ACPI: Added _OSI(Module Device) [ 6.762004][ T1] ACPI: Added _OSI(Processor Device) [ 6.772177][ T1] ACPI: Added _OSI(3.0 _SCP Extensions) [ 6.777753][ T1] ACPI: Added _OSI(Processor Aggregator Device) [ 6.782094][ T1] ACPI: Added _OSI(Linux-Dell-Video) [ 6.787417][ T1] ACPI: Added _OSI(Linux-Lenovo-NV-HDMI-Audio) [ 6.792043][ T1] ACPI: Added _OSI(Linux-HPI-Hybrid-Graphics) [ 6.858847][ T1] ACPI: 2 ACPI AML tables successfully acquired and loaded [ 6.912816][ T1] ACPI: Interpreter enabled [ 6.918594][ T1] ACPI: (supports S0 S3 S4 S5) [ 6.922265][ T1] ACPI: Using IOAPIC for interrupt routing [ 6.932157][ T1] PCI: Using host bridge windows from ACPI; if necessary, use "pci=nocrs" and report a bug [ 6.946157][ T1] ACPI: Enabled 3 GPEs in block 00 to 3F [ 7.064415][ T1] ACPI: PCI Root Bridge [PCI0] (domain 0000 [bus 00-ff]) [ 7.071807][ T1] acpi PNP0A08:00: _OSC: OS supports [ExtendedConfig ASPM ClockPM Segments MSI HPX-Type3] [ 7.086698][ T1] acpi PNP0A08:00: _OSC: platform does not support [LTR] [ 7.094789][ T1] acpi PNP0A08:00: _OSC: OS now controls [PCIeHotplug PME AER PCIeCapability] [ 7.112006][ T1] PCI host bridge to bus 0000:00 [ 7.112015][ T1] pci_bus 0000:00: Unknown NUMA node; performance will be reduced [ 7.119691][ T1] pci_bus 0000:00: root bus resource [io 0x0000-0x0cf7 window] [ 7.132017][ T1] pci_bus 0000:00: root bus resource [io 0x0d00-0xffff window] [ 7.139385][ T1] pci_bus 0000:00: root bus resource [mem 0x000a0000-0x000bffff window] [ 7.142006][ T1] pci_bus 0000:00: root bus resource [mem 0x80000000-0xafffffff window] [ 7.150107][ T1] pci_bus 0000:00: root bus resource [mem 0xc0000000-0xfebfffff window] [ 7.162024][ T1] pci_bus 0000:00: root bus resource [mem 0x580000000-0xd7fffffff window] [ 7.170052][ T1] pci_bus 0000:00: root bus resource [bus 00-ff] [ 7.173981][ T1] pci 0000:00:00.0: [8086:29c0] type 00 class 0x060000 [ 7.194217][ T1] pci 0000:00:01.0: [1af4:1050] type 00 class 0x030000 [ 7.224398][ T1] pci 0000:00:01.0: reg 0x10: [mem 0xfe000000-0xfe7fffff pref] [ 7.258704][ T1] pci 0000:00:01.0: reg 0x18: [mem 0xfe800000-0xfe803fff 64bit pref] [ 7.271954][ T1] pci 0000:00:01.0: reg 0x20: [mem 0xfebf4000-0xfebf4fff] [ 7.311580][ T1] pci 0000:00:01.0: reg 0x30: [mem 0xfebe0000-0xfebeffff pref] [ 7.360991][ T1] pci 0000:00:02.0: [1af4:1000] type 00 class 0x020000 [ 7.376365][ T1] pci 0000:00:02.0: reg 0x10: [io 0xc680-0xc69f] [ 7.384307][ T1] pci 0000:00:02.0: reg 0x14: [mem 0xfebf5000-0xfebf5fff] [ 7.397589][ T1] pci 0000:00:02.0: reg 0x20: [mem 0xfe804000-0xfe807fff 64bit pref] [ 7.403570][ T1] pci 0000:00:02.0: reg 0x30: [mem 0xfeb40000-0xfeb7ffff pref] [ 7.422300][ T1] pci 0000:00:03.0: [8086:100e] type 00 class 0x020000 [ 7.434000][ T1] pci 0000:00:03.0: reg 0x10: [mem 0xfebc0000-0xfebdffff] [ 7.441994][ T1] pci 0000:00:03.0: reg 0x14: [io 0xc600-0xc63f] [ 7.456072][ T1] pci 0000:00:03.0: reg 0x30: [mem 0xfeb80000-0xfebbffff pref] [ 7.466519][ T1] pci 0000:00:04.0: [1274:5000] type 00 class 0x040100 [ 7.473654][ T1] pci 0000:00:04.0: reg 0x10: [io 0xc400-0xc4ff] [ 7.488241][ T1] pci 0000:00:05.0: [8086:2415] type 00 class 0x040100 [ 7.493740][ T1] pci 0000:00:05.0: reg 0x10: [io 0xc000-0xc3ff] [ 7.501515][ T1] pci 0000:00:05.0: reg 0x14: [io 0xc500-0xc5ff] [ 7.522160][ T1] pci 0000:00:06.0: [8086:2668] type 00 class 0x040300 [ 7.530563][ T1] pci 0000:00:06.0: reg 0x10: [mem 0xfebf0000-0xfebf3fff] [ 7.542333][ T1] pci 0000:00:07.0: [1af4:1009] type 00 class 0x000200 [ 7.552009][ T1] pci 0000:00:07.0: reg 0x10: [io 0xc6a0-0xc6bf] [ 7.562008][ T1] pci 0000:00:07.0: reg 0x14: [mem 0xfebf6000-0xfebf6fff] [ 7.587498][ T1] pci 0000:00:07.0: reg 0x20: [mem 0xfe808000-0xfe80bfff 64bit pref] [ 7.602831][ T1] pci 0000:00:1d.0: [8086:2934] type 00 class 0x0c0300 [ 7.615903][ T1] pci 0000:00:1d.0: reg 0x20: [io 0xc6c0-0xc6df] [ 7.632084][ T1] pci 0000:00:1d.1: [8086:2935] type 00 class 0x0c0300 [ 7.637605][ T1] pci 0000:00:1d.1: reg 0x20: [io 0xc6e0-0xc6ff] [ 7.656874][ T1] pci 0000:00:1d.2: [8086:2936] type 00 class 0x0c0300 [ 7.667251][ T1] pci 0000:00:1d.2: reg 0x20: [io 0xc700-0xc71f] [ 7.676822][ T1] pci 0000:00:1d.7: [8086:293a] type 00 class 0x0c0320 [ 7.683570][ T1] pci 0000:00:1d.7: reg 0x10: [mem 0xfebf7000-0xfebf7fff] [ 7.702008][ T1] pci 0000:00:1f.0: [8086:2918] type 00 class 0x060100 [ 7.718799][ T1] pci 0000:00:1f.0: quirk: [io 0x0600-0x067f] claimed by ICH6 ACPI/GPIO/TCO [ 7.723134][ T1] pci 0000:00:1f.0: quirk_ich7_lpc+0x0/0x190 took 19531 usecs [ 7.742012][ T1] pci 0000:00:1f.2: [8086:2922] type 00 class 0x010601 [ 7.759356][ T1] pci 0000:00:1f.2: reg 0x20: [io 0xc720-0xc73f] [ 7.763407][ T1] pci 0000:00:1f.2: reg 0x24: [mem 0xfebf8000-0xfebf8fff] [ 7.781999][ T1] pci 0000:00:1f.3: [8086:2930] type 00 class 0x0c0500 [ 7.797445][ T1] pci 0000:00:1f.3: reg 0x20: [io 0x0700-0x073f] [ 7.835809][ T1] ACPI: PCI Interrupt Link [LNKA] (IRQs 5 *10 11) [ 7.844841][ T1] ACPI: PCI Interrupt Link [LNKB] (IRQs 5 *10 11) [ 7.854100][ T1] ACPI: PCI Interrupt Link [LNKC] (IRQs 5 10 *11) [ 7.863651][ T1] ACPI: PCI Interrupt Link [LNKD] (IRQs 5 10 *11) [ 7.873522][ T1] ACPI: PCI Interrupt Link [LNKE] (IRQs 5 *10 11) [ 7.881814][ T1] ACPI: PCI Interrupt Link [LNKF] (IRQs 5 *10 11) [ 7.894032][ T1] ACPI: PCI Interrupt Link [LNKG] (IRQs 5 10 *11) [ 7.902735][ T1] ACPI: PCI Interrupt Link [LNKH] (IRQs 5 10 *11) [ 7.909921][ T1] ACPI: PCI Interrupt Link [GSIA] (IRQs *16) [ 7.912270][ T1] ACPI: PCI Interrupt Link [GSIB] (IRQs *17) [ 7.918395][ T1] ACPI: PCI Interrupt Link [GSIC] (IRQs *18) [ 7.922315][ T1] ACPI: PCI Interrupt Link [GSID] (IRQs *19) [ 7.928793][ T1] ACPI: PCI Interrupt Link [GSIE] (IRQs *20) [ 7.942299][ T1] ACPI: PCI Interrupt Link [GSIF] (IRQs *21) [ 7.948232][ T1] ACPI: PCI Interrupt Link [GSIG] (IRQs *22) [ 7.952237][ T1] ACPI: PCI Interrupt Link [GSIH] (IRQs *23) [ 7.995802][ T1] iommu: Default domain type: Translated [ 8.005989][ T1] pci 0000:00:01.0: vgaarb: setting as boot VGA device [ 8.011954][ T1] pci 0000:00:01.0: vgaarb: VGA device added: decodes=io+mem,owns=io+mem,locks=none [ 8.022063][ T1] pci 0000:00:01.0: vgaarb: bridge control possible [ 8.028673][ T1] vgaarb: loaded [ 8.047551][ T1] SCSI subsystem initialized [ 8.062374][ T1] ACPI: bus type USB registered [ 8.063952][ T1] usbcore: registered new interface driver usbfs [ 8.072195][ T1] usbcore: registered new interface driver hub [ 8.082554][ T1] usbcore: registered new device driver usb [ 8.090724][ T1] mc: Linux media interface: v0.10 [ 8.092206][ T1] videodev: Linux video capture interface: v2.00 [ 8.103347][ T1] pps_core: LinuxPPS API ver. 1 registered [ 8.103347][ T1] pps_core: Software ver. 5.3.6 - Copyright 2005-2007 Rodolfo Giometti [ 8.112121][ T1] PTP clock support registered [ 8.123122][ T1] EDAC MC: Ver: 3.0.0 [ 8.142711][ T1] Advanced Linux Sound Architecture Driver Initialized. [ 8.166231][ T1] Bluetooth: Core ver 2.22 [ 8.171688][ T1] NET: Registered protocol family 31 [ 8.172038][ T1] Bluetooth: HCI device and connection manager initialized [ 8.180459][ T1] Bluetooth: HCI socket layer initialized [ 8.192092][ T1] Bluetooth: L2CAP socket layer initialized [ 8.198913][ T1] Bluetooth: SCO socket layer initialized [ 8.202354][ T1] NET: Registered protocol family 8 [ 8.207437][ T1] NET: Registered protocol family 20 [ 8.212854][ T1] NetLabel: Initializing [ 8.216865][ T1] NetLabel: domain hash size = 128 [ 8.221996][ T1] NetLabel: protocols = UNLABELED CIPSOv4 CALIPSO [ 8.230183][ T1] NetLabel: unlabeled traffic allowed by default [ 8.244931][ T1] nfc: nfc_init: NFC Core ver 0.1 [ 8.250524][ T1] NET: Registered protocol family 39 [ 8.252494][ T1] PCI: Using ACPI for IRQ routing [ 9.126199][ T1] hpet0: at MMIO 0xfed00000, IRQs 2, 8, 0 [ 9.132106][ T1] hpet0: 3 comparators, 64-bit 100.000000 MHz counter [ 9.146241][ T1] clocksource: Switched to clocksource kvm-clock [ 12.335758][ T1] VFS: Disk quotas dquot_6.6.0 [ 12.344938][ T1] VFS: Dquot-cache hash table entries: 512 (order 0, 4096 bytes) [ 12.353989][ T1] FS-Cache: Loaded [ 12.361461][ T1] CacheFiles: Loaded [ 12.367943][ T1] TOMOYO: 2.6.0 [ 12.371237][ T1] Mandatory Access Control activated. [ 12.377932][ T1] pnp: PnP ACPI init [ 12.400163][ T1] pnp: PnP ACPI: found 6 devices [ 12.468142][ T1] clocksource: acpi_pm: mask: 0xffffff max_cycles: 0xffffff, max_idle_ns: 2085701024 ns [ 12.482492][ T1] NET: Registered protocol family 2 [ 12.500521][ T1] tcp_listen_portaddr_hash hash table entries: 1024 (order: 4, 81920 bytes, vmalloc) [ 12.511503][ T1] TCP established hash table entries: 16384 (order: 5, 131072 bytes, vmalloc) [ 12.522888][ T1] TCP bind hash table entries: 16384 (order: 8, 1179648 bytes, vmalloc) [ 12.532965][ T1] TCP: Hash tables configured (established 16384 bind 16384) [ 12.542469][ T1] MPTCP token hash table entries: 2048 (order: 5, 180224 bytes, vmalloc) [ 12.550931][ T1] UDP hash table entries: 1024 (order: 5, 163840 bytes, vmalloc) [ 12.558647][ T1] UDP-Lite hash table entries: 1024 (order: 5, 163840 bytes, vmalloc) [ 12.568274][ T1] NET: Registered protocol family 1 [ 12.578492][ T1] RPC: Registered named UNIX socket transport module. [ 12.585612][ T1] RPC: Registered udp transport module. [ 12.590992][ T1] RPC: Registered tcp transport module. [ 12.596502][ T1] RPC: Registered tcp NFSv4.1 backchannel transport module. [ 12.606242][ T1] NET: Registered protocol family 44 [ 12.612984][ T1] pci_bus 0000:00: resource 4 [io 0x0000-0x0cf7 window] [ 12.619574][ T1] pci_bus 0000:00: resource 5 [io 0x0d00-0xffff window] [ 12.626653][ T1] pci_bus 0000:00: resource 6 [mem 0x000a0000-0x000bffff window] [ 12.634166][ T1] pci_bus 0000:00: resource 7 [mem 0x80000000-0xafffffff window] [ 12.641270][ T1] pci_bus 0000:00: resource 8 [mem 0xc0000000-0xfebfffff window] [ 12.648699][ T1] pci_bus 0000:00: resource 9 [mem 0x580000000-0xd7fffffff window] [ 12.657567][ T1] pci 0000:00:01.0: Video device with shadowed ROM at [mem 0x000c0000-0x000dffff] [ 12.681396][ T1] PCI Interrupt Link [GSIA] enabled at IRQ 16 [ 12.706016][ T1] pci 0000:00:1d.0: quirk_usb_early_handoff+0x0/0x105b took 37279 usecs [ 12.726582][ T1] PCI Interrupt Link [GSIB] enabled at IRQ 17 [ 12.745032][ T1] pci 0000:00:1d.1: quirk_usb_early_handoff+0x0/0x105b took 29233 usecs [ 12.764375][ T1] PCI Interrupt Link [GSIC] enabled at IRQ 18 [ 12.782182][ T1] pci 0000:00:1d.2: quirk_usb_early_handoff+0x0/0x105b took 28158 usecs [ 12.801071][ T1] PCI Interrupt Link [GSID] enabled at IRQ 19 [ 12.820310][ T1] pci 0000:00:1d.7: quirk_usb_early_handoff+0x0/0x105b took 29427 usecs [ 12.829060][ T1] PCI: CLS 0 bytes, default 64 [ 12.846358][ T1] PCI-DMA: Using software bounce buffering for IO (SWIOTLB) [ 12.853498][ T1] software IO TLB: mapped [mem 0x7ac00000-0x7ec00000] (64MB) [ 12.869304][ T1] kvm: no hardware support [ 12.873818][ T1] has_svm: not amd or hygon [ 12.877950][ T1] kvm: no hardware support [ 12.884222][ T1] clocksource: tsc: mask: 0xffffffffffffffff max_cycles: 0x1cd4c92266a, max_idle_ns: 440795223404 ns [ 12.894811][ T1] clocksource: Switched to clocksource tsc [ 12.900977][ T1] mce: Machine check injector initialized [ 12.917262][ T1] check: Scanning for low memory corruption every 60 seconds [ 13.047786][ T1] Initialise system trusted keyrings [ 13.058065][ T1] workingset: timestamp_bits=40 max_order=19 bucket_order=0 [ 13.069353][ T1] zbud: loaded [ 13.082985][ T1] DLM installed [ 13.090273][ T1] squashfs: version 4.0 (2009/01/31) Phillip Lougher [ 13.103043][ T1] FS-Cache: Netfs 'nfs' registered for caching [ 13.110599][ T1] NFS: Registering the id_resolver key type [ 13.116145][ T1] Key type id_resolver registered [ 13.120916][ T1] Key type id_legacy registered [ 13.126251][ T1] nfs4filelayout_init: NFSv4 File Layout Driver Registering... [ 13.133645][ T1] Installing knfsd (copyright (C) 1996 okir@monad.swb.de). [ 13.148071][ T1] FS-Cache: Netfs 'cifs' registered for caching [ 13.156135][ T1] Key type cifs.spnego registered [ 13.160994][ T1] Key type cifs.idmap registered [ 13.166181][ T1] ntfs: driver 2.1.32 [Flags: R/W]. [ 13.172738][ T1] fuse: init (API version 7.31) [ 13.180530][ T1] JFS: nTxBlock = 8192, nTxLock = 65536 [ 13.208988][ T1] SGI XFS with ACLs, security attributes, realtime, quota, no debug enabled [ 13.222780][ T1] 9p: Installing v9fs 9p2000 file system support [ 13.228728][ T1] FS-Cache: Netfs '9p' registered for caching [ 13.235905][ T1] ocfs2: Registered cluster interface o2cb [ 13.242529][ T1] ocfs2: Registered cluster interface user [ 13.249122][ T1] OCFS2 User DLM kernel interface loaded [ 13.273224][ T1] gfs2: GFS2 installed [ 13.287131][ T1] FS-Cache: Netfs 'ceph' registered for caching [ 13.293432][ T1] ceph: loaded (mds proto 32) [ 13.319322][ T1] NET: Registered protocol family 38 [ 13.326424][ T1] async_tx: api initialized (async) [ 13.331740][ T1] Key type asymmetric registered [ 13.337082][ T1] Asymmetric key parser 'x509' registered [ 13.343033][ T1] Asymmetric key parser 'pkcs8' registered [ 13.348997][ T1] Key type pkcs7_test registered [ 13.354062][ T1] Asymmetric key parser 'tpm_parser' registered [ 13.360768][ T1] Block layer SCSI generic (bsg) driver version 0.4 loaded (major 243) [ 13.371414][ T1] io scheduler mq-deadline registered [ 13.377483][ T1] io scheduler kyber registered [ 13.383163][ T1] io scheduler bfq registered [ 13.403765][ T1] hgafb: HGA card not detected. [ 13.409251][ T1] hgafb: probe of hgafb.0 failed with error -22 [ 13.416824][ T1] usbcore: registered new interface driver udlfb [ 13.428903][ T1] uvesafb: failed to execute /sbin/v86d [ 13.434636][ T1] uvesafb: make sure that the v86d helper is installed and executable [ 13.443003][ T1] uvesafb: Getting VBE info block failed (eax=0x4f00, err=-2) [ 13.450273][ T1] uvesafb: vbe_init() failed with -22 [ 13.455721][ T1] uvesafb: probe of uvesafb.0 failed with error -22 [ 13.463972][ T1] vga16fb: mapped to 0x00000000a34da4d1 [ 20.841377][ T1] Console: switching to colour frame buffer device 80x30 [ 29.398832][ T1] fb0: VGA16 VGA frame buffer device [ 29.453749][ T1] input: Power Button as /devices/LNXSYSTM:00/LNXPWRBN:00/input/input0 [ 29.494901][ T1] ACPI: Power Button [PWRF] [ 29.644015][ T266] ================================================================== [ 29.652422][ T266] BUG: KASAN: global-out-of-bounds in internal_create_group+0x9d8/0xb20 [ 29.652422][ T266] Read of size 8 at addr ffffffff8a2e8730 by task kworker/u17:4/266 [ 29.652422][ T266] [ 29.652422][ T266] CPU: 1 PID: 266 Comm: kworker/u17:4 Not tainted 5.9.0-rc1-syzkaller #0 [ 29.652422][ T266] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS rel-1.12.0-59-gc9ba5276e321-prebuilt.qemu.org 04/01/2014 [ 29.652422][ T266] Workqueue: events_unbound async_run_entry_fn [ 29.652422][ T266] Call Trace: [ 29.652422][ T266] dump_stack+0x18f/0x20d [ 29.652422][ T266] ? internal_create_group+0x9d8/0xb20 [ 29.712988][ T266] ? internal_create_group+0x9d8/0xb20 [ 29.712988][ T266] print_address_description.constprop.0.cold+0x5/0x497 [ 29.712988][ T266] ? vprintk_func+0x97/0x1a6 [ 29.712988][ T266] ? internal_create_group+0x9d8/0xb20 [ 29.712988][ T266] ? internal_create_group+0x9d8/0xb20 [ 29.712988][ T266] kasan_report.cold+0x1f/0x37 [ 29.712988][ T266] ? internal_create_group+0x9d8/0xb20 [ 29.712988][ T266] ? state_show+0xf0/0xf0 [ 29.712988][ T266] internal_create_group+0x9d8/0xb20 [ 29.712988][ T266] ? sysfs_remove_group+0x170/0x170 [ 29.712988][ T266] internal_create_groups.part.0+0x90/0x140 [ 29.712988][ T266] sysfs_create_groups+0x25/0x50 [ 29.712988][ T266] device_add+0x7fd/0x1c40 [ 29.712988][ T266] ? devlink_add_symlinks+0x450/0x450 [ 29.712988][ T266] ? lock_release+0x8e0/0x8e0 [ 29.712988][ T266] ? lock_downgrade+0x830/0x830 [ 29.712988][ T266] ? __schedule+0x88e/0x21e0 [ 29.712988][ T266] ? nd_synchronize+0x20/0x20 [ 29.712988][ T266] nd_async_device_register+0x12/0x80 [ 29.712988][ T266] async_run_entry_fn+0x121/0x530 [ 29.712988][ T266] process_one_work+0x94c/0x1670 [ 29.712988][ T266] ? lock_release+0x8e0/0x8e0 [ 29.712988][ T266] ? pwq_dec_nr_in_flight+0x2d0/0x2d0 [ 29.712988][ T266] ? rwlock_bug.part.0+0x90/0x90 [ 29.712988][ T266] worker_thread+0x64c/0x1120 [ 29.712988][ T266] ? __kthread_parkme+0x13f/0x1e0 [ 29.712988][ T266] ? process_one_work+0x1670/0x1670 [ 29.712988][ T266] kthread+0x3b5/0x4a0 [ 29.712988][ T266] ? __kthread_bind_mask+0xc0/0xc0 [ 29.712988][ T266] ? __kthread_bind_mask+0xc0/0xc0 [ 29.712988][ T266] ret_from_fork+0x1f/0x30 [ 29.712988][ T266] [ 29.712988][ T266] The buggy address belongs to the variable: [ 29.712988][ T266] nvdimm_firmware_attributes+0x10/0x40 [ 29.712988][ T266] [ 29.712988][ T266] Memory state around the buggy address: [ 29.712988][ T266] ffffffff8a2e8600: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 29.712988][ T266] ffffffff8a2e8680: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 29.712988][ T266] >ffffffff8a2e8700: f9 f9 f9 f9 00 00 f9 f9 f9 f9 f9 f9 00 00 00 00 [ 29.712988][ T266] ^ [ 29.712988][ T266] ffffffff8a2e8780: 00 00 00 f9 f9 f9 f9 f9 00 00 00 00 00 00 00 f9 [ 29.712988][ T266] ffffffff8a2e8800: f9 f9 f9 f9 00 00 00 00 00 00 00 f9 f9 f9 f9 f9 [ 29.712988][ T266] ================================================================== [ 29.712988][ T266] Disabling lock debugging due to kernel taint [ 29.955973][ T266] Kernel panic - not syncing: panic_on_warn set ... [ 29.963381][ T266] CPU: 1 PID: 266 Comm: kworker/u17:4 Tainted: G B 5.9.0-rc1-syzkaller #0 [ 29.965786][ T266] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS rel-1.12.0-59-gc9ba5276e321-prebuilt.qemu.org 04/01/2014 [ 29.965786][ T266] Workqueue: events_unbound async_run_entry_fn [ 29.965786][ T266] Call Trace: [ 29.965786][ T266] dump_stack+0x18f/0x20d [ 29.965786][ T266] ? internal_create_group+0x9c0/0xb20 [ 29.965786][ T266] panic+0x2e3/0x75c [ 29.965786][ T266] ? __warn_printk+0xf3/0xf3 [ 29.965786][ T266] ? preempt_schedule_common+0x59/0xc0 [ 29.965786][ T266] ? internal_create_group+0x9d8/0xb20 [ 29.965786][ T266] ? preempt_schedule_thunk+0x16/0x18 [ 29.965786][ T266] ? trace_hardirqs_on+0x55/0x220 [ 29.965786][ T266] ? internal_create_group+0x9d8/0xb20 [ 29.965786][ T266] ? internal_create_group+0x9d8/0xb20 [ 29.965786][ T266] end_report+0x4d/0x53 [ 29.965786][ T266] kasan_report.cold+0xd/0x37 [ 29.965786][ T266] ? internal_create_group+0x9d8/0xb20 [ 29.965786][ T266] ? state_show+0xf0/0xf0 [ 29.965786][ T266] internal_create_group+0x9d8/0xb20 [ 29.965786][ T266] ? sysfs_remove_group+0x170/0x170 [ 29.965786][ T266] internal_create_groups.part.0+0x90/0x140 [ 29.965786][ T266] sysfs_create_groups+0x25/0x50 [ 29.965786][ T266] device_add+0x7fd/0x1c40 [ 29.965786][ T266] ? devlink_add_symlinks+0x450/0x450 [ 29.965786][ T266] ? lock_release+0x8e0/0x8e0 [ 29.965786][ T266] ? lock_downgrade+0x830/0x830 [ 29.965786][ T266] ? __schedule+0x88e/0x21e0 [ 29.965786][ T266] ? nd_synchronize+0x20/0x20 [ 29.965786][ T266] nd_async_device_register+0x12/0x80 [ 29.965786][ T266] async_run_entry_fn+0x121/0x530 [ 29.965786][ T266] process_one_work+0x94c/0x1670 [ 29.965786][ T266] ? lock_release+0x8e0/0x8e0 [ 29.965786][ T266] ? pwq_dec_nr_in_flight+0x2d0/0x2d0 [ 29.965786][ T266] ? rwlock_bug.part.0+0x90/0x90 [ 29.965786][ T266] worker_thread+0x64c/0x1120 [ 29.965786][ T266] ? __kthread_parkme+0x13f/0x1e0 [ 29.965786][ T266] ? process_one_work+0x1670/0x1670 [ 29.965786][ T266] kthread+0x3b5/0x4a0 [ 29.965786][ T266] ? __kthread_bind_mask+0xc0/0xc0 [ 29.965786][ T266] ? __kthread_bind_mask+0xc0/0xc0 [ 29.965786][ T266] ret_from_fork+0x1f/0x30 [ 29.965786][ T266] Kernel Offset: disabled [ 29.965786][ T266] Rebooting in 86400 seconds..