[ 0.000000][ T0] Linux version 5.8.0-syzkaller (syzkaller@syzkaller) (gcc (GCC) 10.1.0-syz 20200507, GNU ld (GNU Binutils for Debian) 2.28) #0 SMP PREEMPT now [ 0.000000][ T0] Command line: BOOT_IMAGE=/vmlinuz root=/dev/sda1 console=ttyS0 earlyprintk=serial vsyscall=native rodata=n oops=panic panic_on_warn=1 nmi_watchdog=panic panic=86400 net.ifnames=0 sysctl.kernel.hung_task_all_cpu_backtrace=1 security=selinux lsm=lockdown,yama,safesetid,integrity,selinux,tomoyo,bpf ima_policy=tcb workqueue.watchdog_thresh=140 kvm-intel.nested=1 nf-conntrack-ftp.ports=20000 nf-conntrack-tftp.ports=20000 nf-conntrack-sip.ports=20000 nf-conntrack-irc.ports=20000 nf-conntrack-sane.ports=20000 vivid.n_devs=16 vivid.multiplanar=1,2,1,2,1,2,1,2,1,2,1,2,1,2,1,2 netrom.nr_ndevs=16 rose.rose_ndevs=16 spec_store_bypass_disable=prctl numa=fake=2 nopcid dummy_hcd.num=8 binder.debug_mask=0 rcupdate.rcu_expedited=1 [ 0.000000][ T0] KERNEL supported cpus: [ 0.000000][ T0] Intel GenuineIntel [ 0.000000][ T0] AMD AuthenticAMD [ 0.000000][ T0] Centaur CentaurHauls [ 0.000000][ T0] x86/fpu: Supporting XSAVE feature 0x001: 'x87 floating point registers' [ 0.000000][ T0] x86/fpu: Supporting XSAVE feature 0x002: 'SSE registers' [ 0.000000][ T0] x86/fpu: Supporting XSAVE feature 0x004: 'AVX registers' [ 0.000000][ T0] x86/fpu: Supporting XSAVE feature 0x020: 'AVX-512 opmask' [ 0.000000][ T0] x86/fpu: Supporting XSAVE feature 0x040: 'AVX-512 Hi256' [ 0.000000][ T0] x86/fpu: Supporting XSAVE feature 0x080: 'AVX-512 ZMM_Hi256' [ 0.000000][ T0] x86/fpu: xstate_offset[2]: 576, xstate_sizes[2]: 256 [ 0.000000][ T0] x86/fpu: xstate_offset[5]: 1088, xstate_sizes[5]: 64 [ 0.000000][ T0] x86/fpu: xstate_offset[6]: 1152, xstate_sizes[6]: 512 [ 0.000000][ T0] x86/fpu: xstate_offset[7]: 1664, xstate_sizes[7]: 1024 [ 0.000000][ T0] x86/fpu: Enabled xstate features 0xe7, context size is 2688 bytes, using 'standard' format. [ 0.000000][ T0] BIOS-provided physical RAM map: [ 0.000000][ T0] BIOS-e820: [mem 0x0000000000000000-0x000000000009fbff] usable [ 0.000000][ T0] BIOS-e820: [mem 0x000000000009fc00-0x000000000009ffff] reserved [ 0.000000][ T0] BIOS-e820: [mem 0x00000000000f0000-0x00000000000fffff] reserved [ 0.000000][ T0] BIOS-e820: [mem 0x0000000000100000-0x000000007ffdcfff] usable [ 0.000000][ T0] BIOS-e820: [mem 0x000000007ffdd000-0x000000007fffffff] reserved [ 0.000000][ T0] BIOS-e820: [mem 0x00000000b0000000-0x00000000bfffffff] reserved [ 0.000000][ T0] BIOS-e820: [mem 0x00000000fed1c000-0x00000000fed1ffff] reserved [ 0.000000][ T0] BIOS-e820: [mem 0x00000000feffc000-0x00000000feffffff] reserved [ 0.000000][ T0] BIOS-e820: [mem 0x00000000fffc0000-0x00000000ffffffff] reserved [ 0.000000][ T0] printk: bootconsole [earlyser0] enabled [ 0.000000][ T0] Malformed early option 'vsyscall' [ 0.000000][ T0] nopcid: PCID feature disabled [ 0.000000][ T0] NX (Execute Disable) protection: active [ 0.000000][ T0] SMBIOS 2.8 present. [ 0.000000][ T0] DMI: QEMU Standard PC (Q35 + ICH9, 2009), BIOS rel-1.12.0-59-gc9ba5276e321-prebuilt.qemu.org 04/01/2014 [ 0.000000][ T0] Hypervisor detected: KVM [ 0.000000][ T0] kvm-clock: Using msrs 4b564d01 and 4b564d00 [ 0.000064][ T0] kvm-clock: cpu 0, msr becc001, primary cpu clock [ 0.000064][ T0] kvm-clock: using sched offset of 21322959981 cycles [ 0.021284][ T0] clocksource: kvm-clock: mask: 0xffffffffffffffff max_cycles: 0x1cd42e4dffb, max_idle_ns: 881590591483 ns [ 0.075191][ T0] tsc: Detected 2000.164 MHz processor [ 0.109165][ T0] last_pfn = 0x7ffdd max_arch_pfn = 0x400000000 [ 0.134115][ T0] x86/PAT: Configuration [0-7]: WB WC UC- UC WB WP UC- WT [ 0.174861][ T0] found SMP MP-table at [mem 0x000f5a40-0x000f5a4f] [ 0.198634][ T0] check: Scanning 1 areas for low memory corruption [ 0.225949][ T0] ACPI: Early table checksum verification disabled [ 0.246967][ T0] ACPI: RSDP 0x00000000000F5870 000014 (v00 BOCHS ) [ 0.266428][ T0] ACPI: RSDT 0x000000007FFE1F9D 000040 (v01 BOCHS BXPCRSDT 00000001 BXPC 00000001) [ 0.297451][ T0] ACPI: FACP 0x000000007FFE1860 0000F4 (v03 BOCHS BXPCFACP 00000001 BXPC 00000001) [ 0.325207][ T0] ACPI: DSDT 0x000000007FFDF040 002820 (v01 BOCHS BXPCDSDT 00000001 BXPC 00000001) [ 0.353151][ T0] ACPI: FACS 0x000000007FFDF000 000040 [ 0.369415][ T0] ACPI: APIC 0x000000007FFE1954 0000B0 (v01 BOCHS BXPCAPIC 00000001 BXPC 00000001) [ 0.398026][ T0] ACPI: HPET 0x000000007FFE1A04 000038 (v01 BOCHS BXPCHPET 00000001 BXPC 00000001) [ 0.429118][ T0] ACPI: SRAT 0x000000007FFE1A3C 000178 (v01 BOCHS BXPCSRAT 00000001 BXPC 00000001) [ 0.457033][ T0] ACPI: MCFG 0x000000007FFE1BB4 00003C (v01 BOCHS BXPCMCFG 00000001 BXPC 00000001) [ 0.486389][ T0] ACPI: SSDT 0x000000007FFE1BF0 0002CD (v01 BOCHS NVDIMM 00000001 BXPC 00000001) [ 0.514407][ T0] ACPI: NFIT 0x000000007FFE1EBD 0000E0 (v01 BOCHS BXPCNFIT 00000001 BXPC 00000001) [ 0.562507][ T0] SRAT: PXM 0 -> APIC 0x00 -> Node 0 [ 0.581028][ T0] SRAT: PXM 0 -> APIC 0x01 -> Node 0 [ 0.602015][ T0] SRAT: PXM 0 -> APIC 0x02 -> Node 0 [ 0.623048][ T0] SRAT: PXM 0 -> APIC 0x03 -> Node 0 [ 0.639901][ T0] SRAT: PXM 1 -> APIC 0x04 -> Node 1 [ 0.655799][ T0] SRAT: PXM 1 -> APIC 0x05 -> Node 1 [ 0.675447][ T0] SRAT: PXM 1 -> APIC 0x06 -> Node 1 [ 0.691175][ T0] SRAT: PXM 1 -> APIC 0x07 -> Node 1 [ 0.707455][ T0] ACPI: SRAT: Node 0 PXM 0 [mem 0x00000000-0x0009ffff] [ 0.729345][ T0] ACPI: SRAT: Node 0 PXM 0 [mem 0x00100000-0x3fffffff] [ 0.753096][ T0] ACPI: SRAT: Node 1 PXM 1 [mem 0x40000000-0x7fffffff] [ 0.774892][ T0] ACPI: SRAT: Node 1 PXM 1 [mem 0x100000000-0x57fffffff] hotplug [ 0.801684][ T0] NUMA: Node 0 [mem 0x00000000-0x0009ffff] + [mem 0x00100000-0x3fffffff] -> [mem 0x00000000-0x3fffffff] [ 0.836247][ T0] Faking node 0 at [mem 0x0000000000000000-0x000000003fffffff] (1024MB) [ 0.859784][ T0] Faking node 1 at [mem 0x0000000040000000-0x000000007ffdcfff] (1023MB) [ 0.889000][ T0] NODE_DATA(0) allocated [mem 0x3fffb000-0x3fffffff] [ 0.919744][ T0] NODE_DATA(1) allocated [mem 0x7ffd7000-0x7ffdbfff] [ 1.383506][ T0] Zone ranges: [ 1.410801][ T0] DMA [mem 0x0000000000001000-0x0000000000ffffff] [ 1.461085][ T0] DMA32 [mem 0x0000000001000000-0x000000007ffdcfff] [ 1.503397][ T0] Normal empty [ 1.522525][ T0] Device empty [ 1.545318][ T0] Movable zone start for each node [ 1.572983][ T0] Early memory node ranges [ 1.600009][ T0] node 0: [mem 0x0000000000001000-0x000000000009efff] [ 1.645654][ T0] node 0: [mem 0x0000000000100000-0x000000003fffffff] [ 1.692084][ T0] node 1: [mem 0x0000000040000000-0x000000007ffdcfff] [ 1.737281][ T0] Zeroed struct page in unavailable ranges: 133 pages [ 1.737376][ T0] Initmem setup node 0 [mem 0x0000000000001000-0x000000003fffffff] [ 1.812674][ T0] Initmem setup node 1 [mem 0x0000000040000000-0x000000007ffdcfff] [ 9.107232][ T0] kasan: KernelAddressSanitizer initialized [ 9.218340][ T0] ACPI: PM-Timer IO Port: 0x608 [ 9.261497][ T0] ACPI: LAPIC_NMI (acpi_id[0xff] dfl dfl lint[0x1]) [ 9.337620][ T0] IOAPIC[0]: apic_id 0, version 17, address 0xfec00000, GSI 0-23 [ 9.406278][ T0] ACPI: INT_SRC_OVR (bus 0 bus_irq 0 global_irq 2 dfl dfl) [ 9.471198][ T0] ACPI: INT_SRC_OVR (bus 0 bus_irq 5 global_irq 5 high level) [ 9.531173][ T0] ACPI: INT_SRC_OVR (bus 0 bus_irq 9 global_irq 9 high level) [ 9.595701][ T0] ACPI: INT_SRC_OVR (bus 0 bus_irq 10 global_irq 10 high level) [ 9.664924][ T0] ACPI: INT_SRC_OVR (bus 0 bus_irq 11 global_irq 11 high level) [ 9.741081][ T0] Using ACPI (MADT) for SMP configuration information [ 9.799994][ T0] ACPI: HPET id: 0x8086a201 base: 0xfed00000 [ 9.856909][ T0] TSC deadline timer available [ 9.901209][ T0] smpboot: Allowing 8 CPUs, 4 hotplug CPUs [ 9.963702][ T0] kvm-guest: KVM setup pv remote TLB flush [ 10.026081][ T0] PM: hibernation: Registered nosave memory: [mem 0x00000000-0x00000fff] [ 10.098027][ T0] PM: hibernation: Registered nosave memory: [mem 0x0009f000-0x0009ffff] [ 10.168943][ T0] PM: hibernation: Registered nosave memory: [mem 0x000a0000-0x000effff] [ 10.231562][ T0] PM: hibernation: Registered nosave memory: [mem 0x000f0000-0x000fffff] [ 10.292546][ T0] [mem 0xc0000000-0xfed1bfff] available for PCI devices [ 10.343377][ T0] Booting paravirtualized kernel on KVM [ 10.385171][ T0] clocksource: refined-jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604462750000 ns [ 10.541478][ T0] setup_percpu: NR_CPUS:64 nr_cpumask_bits:64 nr_cpu_ids:8 nr_node_ids:2 [ 10.786076][ T0] percpu: Embedded 65 pages/cpu s226696 r8192 d31352 u1048576 [ 10.867665][ T0] kvm-guest: stealtime: cpu 0, msr 2ce20a40 [ 10.910228][ T0] kvm-guest: PV spinlocks enabled [ 10.951560][ T0] PV qspinlock hash table entries: 256 (order: 0, 4096 bytes, linear) [ 11.041188][ T0] Built 2 zonelists, mobility grouping on. Total pages: 515942 [ 11.100703][ T0] Policy zone: DMA32 [ 11.126268][ 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 [ 11.740539][ T0] mem auto-init: stack:off, heap alloc:on, heap free:off [ 13.432650][ T0] Memory: 1503356K/2096620K available (116743K kernel code, 17667K rwdata, 21628K rodata, 2792K init, 23948K bss, 593008K reserved, 0K cma-reserved) [ 13.789104][ T0] Running RCU self tests [ 13.837910][ T0] rcu: Preemptible hierarchical RCU implementation. [ 13.904982][ T0] rcu: RCU lockdep checking is enabled. [ 13.963738][ T0] rcu: RCU restricting CPUs from NR_CPUS=64 to nr_cpu_ids=8. [ 14.043556][ T0] rcu: RCU callback double-/use-after-free debug enabled. [ 14.121974][ T0] rcu: RCU debug extended QS entry/exit. [ 14.189673][ T0] All grace periods are expedited (rcu_expedited). [ 14.275363][ T0] Trampoline variant of Tasks RCU enabled. [ 14.347148][ T0] rcu: RCU calculated value of scheduler-enlistment delay is 10 jiffies. [ 14.460312][ T0] rcu: Adjusting geometry for rcu_fanout_leaf=16, nr_cpu_ids=8 [ 14.609049][ T0] NR_IRQS: 4352, nr_irqs: 488, preallocated irqs: 16 [ 14.848413][ T0] random: get_random_bytes called from start_kernel+0x23b/0x46a with crng_init=0 [ 15.904918][ T0] Console: colour VGA+ 80x25 [ 16.093130][ T0] printk: console [ttyS0] enabled [ 16.093130][ T0] printk: console [ttyS0] enabled [ 16.214810][ T0] printk: bootconsole [earlyser0] disabled [ 16.214810][ T0] printk: bootconsole [earlyser0] disabled [ 16.349568][ T0] Lock dependency validator: Copyright (c) 2006 Red Hat, Inc., Ingo Molnar [ 16.443198][ T0] ... MAX_LOCKDEP_SUBCLASSES: 8 [ 16.490926][ T0] ... MAX_LOCK_DEPTH: 48 [ 16.544740][ T0] ... MAX_LOCKDEP_KEYS: 8192 [ 16.593995][ T0] ... CLASSHASH_SIZE: 4096 [ 16.650821][ T0] ... MAX_LOCKDEP_ENTRIES: 32768 [ 16.704906][ T0] ... MAX_LOCKDEP_CHAINS: 65536 [ 16.753758][ T0] ... CHAINHASH_SIZE: 32768 [ 16.801957][ T0] memory used by lock dependency info: 6301 kB [ 16.867925][ T0] memory used for stack traces: 4224 kB [ 16.923739][ T0] per task-struct memory footprint: 1920 bytes [ 16.990741][ T0] mempolicy: Enabling automatic NUMA balancing. Configure with numa_balancing= or the kernel.numa_balancing sysctl [ 17.111979][ T0] ACPI: Core revision 20200717 [ 17.208106][ T0] clocksource: hpet: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604467 ns [ 17.408898][ T0] APIC: Switch to symmetric I/O mode setup [ 17.546433][ T0] x2apic enabled [ 17.630524][ T0] Switched APIC routing to physical x2apic. [ 17.694680][ T0] kvm-guest: setup PV IPIs [ 17.975275][ T0] ..TIMER: vector=0x30 apic1=0 pin1=2 apic2=-1 pin2=-1 [ 18.082286][ T0] clocksource: tsc-early: mask: 0xffffffffffffffff max_cycles: 0x1cd4c92266a, max_idle_ns: 440795223404 ns [ 18.244103][ T0] Calibrating delay loop (skipped) preset value.. 4000.32 BogoMIPS (lpj=20001640) [ 18.271236][ T0] pid_max: default: 32768 minimum: 301 [ 18.301719][ T0] LSM: Security Framework initializing [ 18.312262][ T0] LSM: security= is ignored because it is superseded by lsm= [ 18.323480][ T0] Yama: becoming mindful. [ 18.354551][ T0] SELinux: Initializing. [ 18.386211][ T0] TOMOYO Linux initialized [ 18.396870][ T0] LSM support for eBPF active [ 18.486933][ T0] Dentry cache hash table entries: 262144 (order: 9, 2097152 bytes, vmalloc) [ 18.525486][ T0] Inode-cache hash table entries: 131072 (order: 8, 1048576 bytes, vmalloc) [ 18.542335][ T0] Mount-cache hash table entries: 4096 (order: 3, 32768 bytes, vmalloc) [ 18.551622][ T0] Mountpoint-cache hash table entries: 4096 (order: 3, 32768 bytes, vmalloc) [ 18.902935][ T0] x86/cpu: User Mode Instruction Prevention (UMIP) activated [ 18.959320][ T0] Last level iTLB entries: 4KB 0, 2MB 0, 4MB 0 [ 18.961103][ T0] Last level dTLB entries: 4KB 0, 2MB 0, 4MB 0, 1GB 0 [ 18.976665][ T0] Spectre V1 : Mitigation: usercopy/swapgs barriers and __user pointer sanitization [ 18.981770][ T0] Spectre V2 : Spectre mitigation: kernel not compiled with retpoline; no mitigation available! [ 18.982711][ T0] Speculative Store Bypass: Mitigation: Speculative Store Bypass disabled via prctl [ 19.003793][ T0] TAA: Mitigation: Clear CPU buffers [ 19.011098][ T0] MDS: Mitigation: Clear CPU buffers [ 19.188007][ T0] Freeing SMP alternatives memory: 104K [ 19.687670][ T1] smpboot: CPU0: Intel(R) Xeon(R) CPU @ 2.00GHz (family: 0x6, model: 0x55, stepping: 0x3) [ 19.753332][ T1] Performance Events: unsupported p6 CPU model 85 no PMU driver, software events only. [ 19.778493][ T1] rcu: Hierarchical SRCU implementation. [ 19.808961][ T1] dyndbg: Ignore empty _ddebug table in a CONFIG_DYNAMIC_DEBUG_CORE build [ 19.823398][ T1] NMI watchdog: Perf NMI watchdog permanently disabled [ 19.857617][ T1] smp: Bringing up secondary CPUs ... [ 19.900506][ T1] x86: Booting SMP configuration: [ 19.901915][ T1] .... node #0, CPUs: #1 [ 3.244332][ T0] kvm-clock: cpu 1, msr becc041, secondary cpu clock [ 20.061080][ T15] kvm-guest: stealtime: cpu 1, msr 2cf20a40 [ 20.105376][ 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. [ 20.121369][ 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. [ 20.162089][ T1] #2 [ 3.244332][ T0] kvm-clock: cpu 2, msr becc081, secondary cpu clock [ 20.351080][ T20] kvm-guest: stealtime: cpu 2, msr 2d020a40 [ 20.711080][ T1] #3 [ 3.244332][ T0] kvm-clock: cpu 3, msr becc0c1, secondary cpu clock [ 20.867763][ T25] kvm-guest: stealtime: cpu 3, msr 2d120a40 [ 20.921080][ T1] smp: Brought up 2 nodes, 4 CPUs [ 20.932677][ T1] smpboot: Max logical packages: 2 [ 20.941569][ T1] smpboot: Total of 4 processors activated (16001.31 BogoMIPS) [ 21.171967][ T1] devtmpfs: initialized [ 21.239752][ T1] x86/mm: Memory block size: 128MB [ 21.535929][ T1] clocksource: jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604462750000 ns [ 21.561080][ T1] futex hash table entries: 2048 (order: 6, 262144 bytes, vmalloc) [ 21.551080][ T34] kworker/u17:0 (34) used greatest stack depth: 27656 bytes left [ 21.624604][ T1] xor: automatically using best checksumming function avx [ 21.694637][ T37] kworker/u17:0 (37) used greatest stack depth: 27544 bytes left [ 21.705209][ T1] PM: RTC time: 23:35:51, date: 2020-08-14 [ 21.944647][ T1] NET: Registered protocol family 16 [ 22.007930][ T1] audit: initializing netlink subsys (disabled) [ 22.043189][ T40] audit: type=2000 audit(1597448146.417:1): state=initialized audit_enabled=0 res=1 [ 22.051080][ T1] thermal_sys: Registered thermal governor 'step_wise' [ 22.051080][ T1] thermal_sys: Registered thermal governor 'user_space' [ 22.131424][ T1] cpuidle: using governor menu [ 22.276794][ T1] NET: Registered protocol family 42 [ 22.380872][ T1] ACPI: bus type PCI registered [ 22.445286][ T1] dca service started, version 1.12.1 [ 22.515917][ T1] PCI: MMCONFIG for domain 0000 [bus 00-ff] at [mem 0xb0000000-0xbfffffff] (base 0xb0000000) [ 22.605283][ T1] PCI: MMCONFIG at [mem 0xb0000000-0xbfffffff] reserved in E820 [ 23.378834][ T1] PCI: Using configuration type 1 for base access [ 24.124960][ T623] kworker/u17:15 (623) used greatest stack depth: 27056 bytes left [ 24.300449][ T1199] kworker/u17:6 (1199) used greatest stack depth: 26680 bytes left [ 24.328487][ T1] HugeTLB registered 2.00 MiB page size, pre-allocated 0 pages [ 24.662025][ T1] cryptd: max_cpu_qlen set to 1000 [ 25.071917][ T1] raid6: avx512x4 gen() 12631 MB/s [ 25.283125][ T1] raid6: avx512x4 xor() 4904 MB/s [ 25.461262][ T1] raid6: avx512x2 gen() 10512 MB/s [ 25.641210][ T1] raid6: avx512x2 xor() 4828 MB/s [ 25.821240][ T1] raid6: avx512x1 gen() 6860 MB/s [ 26.001209][ T1] raid6: avx512x1 xor() 2782 MB/s [ 26.181686][ T1] raid6: avx2x4 gen() 8484 MB/s [ 26.371977][ T1] raid6: avx2x4 xor() 4164 MB/s [ 26.584523][ T1] raid6: avx2x2 gen() 5047 MB/s [ 26.782035][ T1] raid6: avx2x2 xor() 2383 MB/s [ 26.991954][ T1] raid6: avx2x1 gen() 2870 MB/s [ 27.171236][ T1] raid6: avx2x1 xor() 1299 MB/s [ 27.351672][ T1] raid6: sse2x4 gen() 4120 MB/s [ 27.531257][ T1] raid6: sse2x4 xor() 2249 MB/s [ 27.711342][ T1] raid6: sse2x2 gen() 2493 MB/s [ 27.891319][ T1] raid6: sse2x2 xor() 1285 MB/s [ 28.081306][ T1] raid6: sse2x1 gen() 1838 MB/s [ 28.262742][ T1] raid6: sse2x1 xor() 728 MB/s [ 28.291205][ T1] raid6: using algorithm avx512x4 gen() 12631 MB/s [ 28.321195][ T1] raid6: .... xor() 4904 MB/s, rmw enabled [ 28.342039][ T1] raid6: using avx512x2 recovery algorithm [ 28.442071][ T1] ACPI: Added _OSI(Module Device) [ 28.471464][ T1] ACPI: Added _OSI(Processor Device) [ 28.491544][ T1] ACPI: Added _OSI(3.0 _SCP Extensions) [ 28.511222][ T1] ACPI: Added _OSI(Processor Aggregator Device) [ 28.542067][ T1] ACPI: Added _OSI(Linux-Dell-Video) [ 28.561340][ T1] ACPI: Added _OSI(Linux-Lenovo-NV-HDMI-Audio) [ 28.581162][ T1] ACPI: Added _OSI(Linux-HPI-Hybrid-Graphics) [ 28.752304][ T1] ACPI: 2 ACPI AML tables successfully acquired and loaded [ 29.021778][ T1] ACPI: Interpreter enabled [ 29.045900][ T1] ACPI: (supports S0 S3 S4 S5) [ 29.061752][ T1] ACPI: Using IOAPIC for interrupt routing [ 29.090805][ T1] PCI: Using host bridge windows from ACPI; if necessary, use "pci=nocrs" and report a bug [ 29.139762][ T1] ACPI: Enabled 3 GPEs in block 00 to 3F [ 29.482555][ T1] ACPI: PCI Root Bridge [PCI0] (domain 0000 [bus 00-ff]) [ 29.537074][ T1] acpi PNP0A08:00: _OSC: OS supports [ExtendedConfig ASPM ClockPM Segments MSI HPX-Type3] [ 29.619878][ T1] acpi PNP0A08:00: _OSC: platform does not support [LTR] [ 29.665571][ T1] acpi PNP0A08:00: _OSC: OS now controls [PCIeHotplug PME AER PCIeCapability] [ 29.760471][ T1] PCI host bridge to bus 0000:00 [ 29.801522][ T1] pci_bus 0000:00: Unknown NUMA node; performance will be reduced [ 29.843257][ T1] pci_bus 0000:00: root bus resource [io 0x0000-0x0cf7 window] [ 29.881316][ T1] pci_bus 0000:00: root bus resource [io 0x0d00-0xffff window] [ 29.921445][ T1] pci_bus 0000:00: root bus resource [mem 0x000a0000-0x000bffff window] [ 29.991572][ T1] pci_bus 0000:00: root bus resource [mem 0x80000000-0xafffffff window] [ 30.021191][ T1] pci_bus 0000:00: root bus resource [mem 0xc0000000-0xfebfffff window] [ 30.061529][ T1] pci_bus 0000:00: root bus resource [mem 0x580000000-0xd7fffffff window] [ 30.111360][ T1] pci_bus 0000:00: root bus resource [bus 00-ff] [ 30.150720][ T1] pci 0000:00:00.0: [8086:29c0] type 00 class 0x060000 [ 30.209152][ T1] pci 0000:00:01.0: [1af4:1050] type 00 class 0x030000 [ 30.331080][ T1] pci 0000:00:01.0: reg 0x10: [mem 0xfe000000-0xfe7fffff pref] [ 30.491080][ T1] pci 0000:00:01.0: reg 0x18: [mem 0xfe800000-0xfe803fff 64bit pref] [ 30.611080][ T1] pci 0000:00:01.0: reg 0x20: [mem 0xfebf4000-0xfebf4fff] [ 30.741080][ T1] pci 0000:00:01.0: reg 0x30: [mem 0xfebe0000-0xfebeffff pref] [ 31.241080][ T1] pci 0000:00:02.0: [1af4:1000] type 00 class 0x020000 [ 31.339450][ T1] pci 0000:00:02.0: reg 0x10: [io 0xc680-0xc69f] [ 31.430830][ T1] pci 0000:00:02.0: reg 0x14: [mem 0xfebf5000-0xfebf5fff] [ 31.530917][ T1] pci 0000:00:02.0: reg 0x20: [mem 0xfe804000-0xfe807fff 64bit pref] [ 31.587546][ T1] pci 0000:00:02.0: reg 0x30: [mem 0xfeb40000-0xfeb7ffff pref] [ 31.692204][ T1] pci 0000:00:03.0: [8086:100e] type 00 class 0x020000 [ 31.748746][ T1] pci 0000:00:03.0: reg 0x10: [mem 0xfebc0000-0xfebdffff] [ 31.785307][ T1] pci 0000:00:03.0: reg 0x14: [io 0xc600-0xc63f] [ 31.874029][ T1] pci 0000:00:03.0: reg 0x30: [mem 0xfeb80000-0xfebbffff pref] [ 31.967958][ T1] pci 0000:00:04.0: [1274:5000] type 00 class 0x040100 [ 31.981323][ T1] pci 0000:00:04.0: reg 0x10: [io 0xc400-0xc4ff] [ 32.034062][ T1] pci 0000:00:05.0: [8086:2415] type 00 class 0x040100 [ 32.048509][ T1] pci 0000:00:05.0: reg 0x10: [io 0xc000-0xc3ff] [ 32.060402][ T1] pci 0000:00:05.0: reg 0x14: [io 0xc500-0xc5ff] [ 32.110987][ T1] pci 0000:00:06.0: [8086:2668] type 00 class 0x040300 [ 32.117307][ T1] pci 0000:00:06.0: reg 0x10: [mem 0xfebf0000-0xfebf3fff] [ 32.183493][ T1] pci 0000:00:07.0: [1af4:1009] type 00 class 0x000200 [ 32.201072][ T1] pci 0000:00:07.0: reg 0x10: [io 0xc6a0-0xc6bf] [ 32.209803][ T1] pci 0000:00:07.0: reg 0x14: [mem 0xfebf6000-0xfebf6fff] [ 32.238387][ T1] pci 0000:00:07.0: reg 0x20: [mem 0xfe808000-0xfe80bfff 64bit pref] [ 32.325230][ T1] pci 0000:00:1d.0: [8086:2934] type 00 class 0x0c0300 [ 32.351586][ T1] pci 0000:00:1d.0: reg 0x20: [io 0xc6c0-0xc6df] [ 32.381955][ T1] pci 0000:00:1d.1: [8086:2935] type 00 class 0x0c0300 [ 32.410358][ T1] pci 0000:00:1d.1: reg 0x20: [io 0xc6e0-0xc6ff] [ 32.428569][ T1] pci 0000:00:1d.2: [8086:2936] type 00 class 0x0c0300 [ 32.448975][ T1] pci 0000:00:1d.2: reg 0x20: [io 0xc700-0xc71f] [ 32.467547][ T1] pci 0000:00:1d.7: [8086:293a] type 00 class 0x0c0320 [ 32.479557][ T1] pci 0000:00:1d.7: reg 0x10: [mem 0xfebf7000-0xfebf7fff] [ 32.523503][ T1] pci 0000:00:1f.0: [8086:2918] type 00 class 0x060100 [ 32.559286][ T1] pci 0000:00:1f.0: quirk: [io 0x0600-0x067f] claimed by ICH6 ACPI/GPIO/TCO [ 32.580808][ T1] pci 0000:00:1f.2: [8086:2922] type 00 class 0x010601 [ 32.600439][ T1] pci 0000:00:1f.2: reg 0x20: [io 0xc720-0xc73f] [ 32.606082][ T1] pci 0000:00:1f.2: reg 0x24: [mem 0xfebf8000-0xfebf8fff] [ 32.637292][ T1] pci 0000:00:1f.3: [8086:2930] type 00 class 0x0c0500 [ 32.669093][ T1] pci 0000:00:1f.3: reg 0x20: [io 0x0700-0x073f] [ 32.786196][ T1] ACPI: PCI Interrupt Link [LNKA] (IRQs 5 *10 11) [ 32.800245][ T1] ACPI: PCI Interrupt Link [LNKB] (IRQs 5 *10 11) [ 32.805859][ T1] ACPI: PCI Interrupt Link [LNKC] (IRQs 5 10 *11) [ 32.815529][ T1] ACPI: PCI Interrupt Link [LNKD] (IRQs 5 10 *11) [ 32.825461][ T1] ACPI: PCI Interrupt Link [LNKE] (IRQs 5 *10 11) [ 32.834535][ T1] ACPI: PCI Interrupt Link [LNKF] (IRQs 5 *10 11) [ 32.844478][ T1] ACPI: PCI Interrupt Link [LNKG] (IRQs 5 10 *11) [ 32.854550][ T1] ACPI: PCI Interrupt Link [LNKH] (IRQs 5 10 *11) [ 32.862799][ T1] ACPI: PCI Interrupt Link [GSIA] (IRQs *16) [ 32.871851][ T1] ACPI: PCI Interrupt Link [GSIB] (IRQs *17) [ 32.881905][ T1] ACPI: PCI Interrupt Link [GSIC] (IRQs *18) [ 32.891753][ T1] ACPI: PCI Interrupt Link [GSID] (IRQs *19) [ 32.901861][ T1] ACPI: PCI Interrupt Link [GSIE] (IRQs *20) [ 32.911725][ T1] ACPI: PCI Interrupt Link [GSIF] (IRQs *21) [ 32.921952][ T1] ACPI: PCI Interrupt Link [GSIG] (IRQs *22) [ 32.931613][ T1] ACPI: PCI Interrupt Link [GSIH] (IRQs *23) [ 33.082706][ T1] iommu: Default domain type: Translated [ 33.121033][ T1] pci 0000:00:01.0: vgaarb: setting as boot VGA device [ 33.121080][ T1] pci 0000:00:01.0: vgaarb: VGA device added: decodes=io+mem,owns=io+mem,locks=none [ 33.121614][ T1] pci 0000:00:01.0: vgaarb: bridge control possible [ 33.131950][ T1] vgaarb: loaded [ 33.256736][ T1] SCSI subsystem initialized [ 33.319689][ T1] ACPI: bus type USB registered [ 33.425893][ T1] usbcore: registered new interface driver usbfs [ 33.474337][ T1] usbcore: registered new interface driver hub [ 33.521081][ T1] usbcore: registered new device driver usb [ 33.568368][ T1] mc: Linux media interface: v0.10 [ 33.592536][ T1] videodev: Linux video capture interface: v2.00 [ 33.630035][ T1] pps_core: LinuxPPS API ver. 1 registered [ 33.651432][ T1] pps_core: Software ver. 5.3.6 - Copyright 2005-2007 Rodolfo Giometti [ 33.691766][ T1] PTP clock support registered [ 33.734735][ T1] EDAC MC: Ver: 3.0.0 [ 33.809137][ T1] Advanced Linux Sound Architecture Driver Initialized. [ 33.871080][ T1] Bluetooth: Core ver 2.22 [ 33.883933][ T1] NET: Registered protocol family 31 [ 33.891369][ T1] Bluetooth: HCI device and connection manager initialized [ 33.904623][ T1] Bluetooth: HCI socket layer initialized [ 33.911312][ T1] Bluetooth: L2CAP socket layer initialized [ 33.921901][ T1] Bluetooth: SCO socket layer initialized [ 33.932348][ T1] NET: Registered protocol family 8 [ 33.941352][ T1] NET: Registered protocol family 20 [ 33.957010][ T1] NetLabel: Initializing [ 33.961222][ T1] NetLabel: domain hash size = 128 [ 33.971310][ T1] NetLabel: protocols = UNLABELED CIPSOv4 CALIPSO [ 33.990234][ T1] NetLabel: unlabeled traffic allowed by default [ 34.001282][ T1] nfc: nfc_init: NFC Core ver 0.1 [ 34.022905][ T1] NET: Registered protocol family 39 [ 34.061080][ T1] PCI: Using ACPI for IRQ routing [ 36.768646][ T1] hpet0: at MMIO 0xfed00000, IRQs 2, 8, 0 [ 36.813950][ T1] hpet0: 3 comparators, 64-bit 100.000000 MHz counter [ 36.896361][ T1] clocksource: Switched to clocksource kvm-clock [ 41.343241][ T1] VFS: Disk quotas dquot_6.6.0 [ 41.368711][ T1] VFS: Dquot-cache hash table entries: 512 (order 0, 4096 bytes) [ 41.450429][ T1] FS-Cache: Loaded [ 41.523870][ T1] CacheFiles: Loaded [ 41.576316][ T1] TOMOYO: 2.6.0 [ 41.592972][ T1] Mandatory Access Control activated. [ 41.627544][ T1] pnp: PnP ACPI init [ 41.723759][ T1] pnp: PnP ACPI: found 6 devices [ 41.969946][ T1] clocksource: acpi_pm: mask: 0xffffff max_cycles: 0xffffff, max_idle_ns: 2085701024 ns [ 42.050424][ T1] NET: Registered protocol family 2 [ 42.140910][ T1] tcp_listen_portaddr_hash hash table entries: 1024 (order: 4, 81920 bytes, vmalloc) [ 42.187726][ T1] TCP established hash table entries: 16384 (order: 5, 131072 bytes, vmalloc) [ 42.255248][ T1] TCP bind hash table entries: 16384 (order: 8, 1179648 bytes, vmalloc) [ 42.304414][ T1] TCP: Hash tables configured (established 16384 bind 16384) [ 42.367405][ T1] MPTCP token hash table entries: 2048 (order: 5, 180224 bytes, vmalloc) [ 42.403675][ T1] UDP hash table entries: 1024 (order: 5, 163840 bytes, vmalloc) [ 42.474206][ T1] UDP-Lite hash table entries: 1024 (order: 5, 163840 bytes, vmalloc) [ 42.568896][ T1] NET: Registered protocol family 1 [ 42.645884][ T1] RPC: Registered named UNIX socket transport module. [ 42.674553][ T1] RPC: Registered udp transport module. [ 42.700236][ T1] RPC: Registered tcp transport module. [ 42.718793][ T1] RPC: Registered tcp NFSv4.1 backchannel transport module. [ 42.774192][ T1] NET: Registered protocol family 44 [ 42.796208][ T1] pci_bus 0000:00: resource 4 [io 0x0000-0x0cf7 window] [ 42.846618][ T1] pci_bus 0000:00: resource 5 [io 0x0d00-0xffff window] [ 42.890747][ T1] pci_bus 0000:00: resource 6 [mem 0x000a0000-0x000bffff window] [ 42.940902][ T1] pci_bus 0000:00: resource 7 [mem 0x80000000-0xafffffff window] [ 43.006370][ T1] pci_bus 0000:00: resource 8 [mem 0xc0000000-0xfebfffff window] [ 43.065586][ T1] pci_bus 0000:00: resource 9 [mem 0x580000000-0xd7fffffff window] [ 43.135781][ T1] pci 0000:00:01.0: Video device with shadowed ROM at [mem 0x000c0000-0x000dffff] [ 43.204118][ T1] pci 0000:00:01.0: pci_fixup_video+0x0/0x270 took 66321 usecs [ 43.298987][ T1] PCI Interrupt Link [GSIA] enabled at IRQ 16 [ 43.411847][ T1] pci 0000:00:1d.0: quirk_usb_early_handoff+0x0/0x105b took 140213 usecs [ 43.472521][ T1] PCI Interrupt Link [GSIB] enabled at IRQ 17 [ 43.514706][ T1] pci 0000:00:1d.1: quirk_usb_early_handoff+0x0/0x105b took 57591 usecs [ 43.575416][ T1] PCI Interrupt Link [GSIC] enabled at IRQ 18 [ 43.628429][ T1] pci 0000:00:1d.2: quirk_usb_early_handoff+0x0/0x105b took 67444 usecs [ 43.690913][ T1] PCI Interrupt Link [GSID] enabled at IRQ 19 [ 43.758882][ T1] pci 0000:00:1d.7: quirk_usb_early_handoff+0x0/0x105b took 80418 usecs [ 43.808400][ T1] PCI: CLS 0 bytes, default 64 [ 43.896911][ T1] PCI-DMA: Using software bounce buffering for IO (SWIOTLB) [ 43.933609][ T1] software IO TLB: mapped [mem 0x7ac00000-0x7ec00000] (64MB) [ 44.005980][ T1] kvm: no hardware support [ 44.020651][ T1] has_svm: not amd or hygon [ 44.040086][ T1] kvm: no hardware support [ 44.074283][ T1] clocksource: tsc: mask: 0xffffffffffffffff max_cycles: 0x1cd4c92266a, max_idle_ns: 440795223404 ns [ 44.142272][ T1] clocksource: Switched to clocksource tsc [ 44.187333][ T1] mce: Machine check injector initialized [ 44.258905][ T1] check: Scanning for low memory corruption every 60 seconds [ 45.098741][ T1] Initialise system trusted keyrings [ 45.160775][ T1] workingset: timestamp_bits=40 max_order=19 bucket_order=0 [ 45.209101][ T1] zbud: loaded [ 45.267131][ T1] DLM installed [ 45.306050][ T1] squashfs: version 4.0 (2009/01/31) Phillip Lougher [ 45.379459][ T1] FS-Cache: Netfs 'nfs' registered for caching [ 45.433477][ T1] NFS: Registering the id_resolver key type [ 45.464244][ T1] Key type id_resolver registered [ 45.491378][ T1] Key type id_legacy registered [ 45.526434][ T1] nfs4filelayout_init: NFSv4 File Layout Driver Registering... [ 45.565145][ T1] Installing knfsd (copyright (C) 1996 okir@monad.swb.de). [ 45.634435][ T1] FS-Cache: Netfs 'cifs' registered for caching [ 45.673696][ T1] Key type cifs.spnego registered [ 45.694557][ T1] Key type cifs.idmap registered [ 45.717491][ T1] ntfs: driver 2.1.32 [Flags: R/W]. [ 45.750465][ T1] fuse: init (API version 7.31) [ 45.790031][ T1] JFS: nTxBlock = 8192, nTxLock = 65536 [ 45.964629][ T1] SGI XFS with ACLs, security attributes, realtime, quota, no debug enabled [ 46.059842][ T1] 9p: Installing v9fs 9p2000 file system support [ 46.102279][ T1] FS-Cache: Netfs '9p' registered for caching [ 46.152734][ T1] ocfs2: Registered cluster interface o2cb [ 46.193021][ T1] ocfs2: Registered cluster interface user [ 46.243868][ T1] OCFS2 User DLM kernel interface loaded [ 46.389016][ T1] gfs2: GFS2 installed [ 46.499037][ T1] FS-Cache: Netfs 'ceph' registered for caching [ 46.548498][ T1] ceph: loaded (mds proto 32) [ 46.717992][ T1] NET: Registered protocol family 38 [ 46.779617][ T1] async_tx: api initialized (async) [ 46.822827][ T1] Key type asymmetric registered [ 46.867305][ T1] Asymmetric key parser 'x509' registered [ 46.910298][ T1] Asymmetric key parser 'pkcs8' registered [ 46.957482][ T1] Key type pkcs7_test registered [ 46.995882][ T1] Asymmetric key parser 'tpm_parser' registered [ 47.053075][ T1] Block layer SCSI generic (bsg) driver version 0.4 loaded (major 243) [ 47.119161][ T1] io scheduler mq-deadline registered [ 47.156474][ T1] io scheduler kyber registered [ 47.209233][ T1] io scheduler bfq registered [ 47.314908][ T1] hgafb: HGA card not detected. [ 47.357267][ T1] hgafb: probe of hgafb.0 failed with error -22 [ 47.426873][ T1] usbcore: registered new interface driver udlfb [ 47.554832][ T1] uvesafb: failed to execute /sbin/v86d [ 47.596909][ T1] uvesafb: make sure that the v86d helper is installed and executable [ 47.656026][ T1] uvesafb: Getting VBE info block failed (eax=0x4f00, err=-2) [ 47.730752][ T1] uvesafb: vbe_init() failed with -22 [ 47.784598][ T1] uvesafb: probe of uvesafb.0 failed with error -22 [ 47.872156][ T1] vga16fb: mapped to 0x00000000866a9264 [ 92.036594][ T1] Console: switching to colour frame buffer device 80x30 [ 131.893948][ T1] fb0: VGA16 VGA frame buffer device [ 132.002028][ T1] input: Power Button as /devices/LNXSYSTM:00/LNXPWRBN:00/input/input0 [ 132.079954][ T1] ACPI: Power Button [PWRF] [ 132.481420][ T791] ================================================================== [ 132.481420][ T791] BUG: KASAN: global-out-of-bounds in internal_create_group+0x9d8/0xb20 [ 132.481420][ T791] Read of size 8 at addr ffffffff8a2e5c90 by task kworker/u17:20/791 [ 132.481420][ T791] [ 132.481420][ T791] CPU: 2 PID: 791 Comm: kworker/u17:20 Not tainted 5.8.0-syzkaller #0 [ 132.481420][ T791] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS rel-1.12.0-59-gc9ba5276e321-prebuilt.qemu.org 04/01/2014 [ 132.481420][ T791] Workqueue: events_unbound async_run_entry_fn [ 132.481420][ T791] Call Trace: [ 132.481420][ T791] dump_stack+0x18f/0x20d [ 132.481420][ T791] ? internal_create_group+0x9d8/0xb20 [ 132.481420][ T791] ? internal_create_group+0x9d8/0xb20 [ 132.481420][ T791] print_address_description.constprop.0.cold+0x5/0x497 [ 132.481420][ T791] ? vprintk_func+0x97/0x1a6 [ 132.481420][ T791] ? internal_create_group+0x9d8/0xb20 [ 132.481420][ T791] ? internal_create_group+0x9d8/0xb20 [ 132.481420][ T791] kasan_report.cold+0x1f/0x37 [ 132.481420][ T791] ? internal_create_group+0x9d8/0xb20 [ 132.481420][ T791] ? state_show+0xf0/0xf0 [ 132.481420][ T791] internal_create_group+0x9d8/0xb20 [ 132.481420][ T791] ? sysfs_remove_group+0x170/0x170 [ 132.481420][ T791] internal_create_groups.part.0+0x90/0x140 [ 132.481420][ T791] sysfs_create_groups+0x25/0x50 [ 132.481420][ T791] device_add+0x7fd/0x1c40 [ 132.481420][ T791] ? devlink_add_symlinks+0x450/0x450 [ 132.481420][ T791] ? lock_release+0x8e0/0x8e0 [ 132.481420][ T791] ? lock_downgrade+0x830/0x830 [ 132.481420][ T791] ? __schedule+0x88e/0x21e0 [ 132.481420][ T791] ? nd_synchronize+0x20/0x20 [ 132.481420][ T791] nd_async_device_register+0x12/0x80 [ 132.481420][ T791] async_run_entry_fn+0x121/0x530 [ 132.481420][ T791] process_one_work+0x94c/0x1670 [ 132.481420][ T791] ? lock_release+0x8e0/0x8e0 [ 132.481420][ T791] ? pwq_dec_nr_in_flight+0x2d0/0x2d0 [ 132.481420][ T791] ? rwlock_bug.part.0+0x90/0x90 [ 132.481420][ T791] worker_thread+0x64c/0x1120 [ 132.481420][ T791] ? process_one_work+0x1670/0x1670 [ 132.481420][ T791] kthread+0x3b5/0x4a0 [ 132.481420][ T791] ? __kthread_bind_mask+0xc0/0xc0 [ 132.481420][ T791] ? __kthread_bind_mask+0xc0/0xc0 [ 132.481420][ T791] ret_from_fork+0x1f/0x30 [ 132.481420][ T791] [ 132.481420][ T791] The buggy address belongs to the variable: [ 132.481420][ T791] nvdimm_firmware_attributes+0x10/0x40 [ 132.481420][ T791] [ 132.481420][ T791] Memory state around the buggy address: [ 133.891797][ T791] ffffffff8a2e5b80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 133.891797][ T791] ffffffff8a2e5c00: 00 00 00 00 00 00 00 00 00 00 00 00 f9 f9 f9 f9 [ 133.891797][ T791] >ffffffff8a2e5c80: 00 00 f9 f9 f9 f9 f9 f9 00 00 00 00 00 00 00 f9 [ 133.891797][ T791] ^ [ 133.891797][ T791] ffffffff8a2e5d00: f9 f9 f9 f9 00 00 00 00 00 00 00 f9 f9 f9 f9 f9 [ 133.891797][ T791] ffffffff8a2e5d80: 00 00 00 00 00 00 00 f9 f9 f9 f9 f9 00 00 00 00 [ 133.891797][ T791] ================================================================== [ 133.891797][ T791] Disabling lock debugging due to kernel taint [ 134.182956][ T791] Kernel panic - not syncing: panic_on_warn set ... [ 134.191499][ T791] CPU: 2 PID: 791 Comm: kworker/u17:20 Tainted: G B 5.8.0-syzkaller #0 [ 134.191499][ T791] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS rel-1.12.0-59-gc9ba5276e321-prebuilt.qemu.org 04/01/2014 [ 134.191499][ T791] Workqueue: events_unbound async_run_entry_fn [ 134.191499][ T791] Call Trace: [ 134.191499][ T791] dump_stack+0x18f/0x20d [ 134.191499][ T791] ? internal_create_group+0x970/0xb20 [ 134.191499][ T791] panic+0x2e3/0x75c [ 134.191499][ T791] ? __warn_printk+0xf3/0xf3 [ 134.191499][ T791] ? preempt_schedule_common+0x59/0xc0 [ 134.191499][ T791] ? internal_create_group+0x9d8/0xb20 [ 134.191499][ T791] ? preempt_schedule_thunk+0x16/0x18 [ 134.191499][ T791] ? trace_hardirqs_on+0x55/0x220 [ 134.191499][ T791] ? internal_create_group+0x9d8/0xb20 [ 134.191499][ T791] ? internal_create_group+0x9d8/0xb20 [ 134.191499][ T791] end_report+0x4d/0x53 [ 134.191499][ T791] kasan_report.cold+0xd/0x37 [ 134.191499][ T791] ? internal_create_group+0x9d8/0xb20 [ 134.191499][ T791] ? state_show+0xf0/0xf0 [ 134.191499][ T791] internal_create_group+0x9d8/0xb20 [ 134.191499][ T791] ? sysfs_remove_group+0x170/0x170 [ 134.191499][ T791] internal_create_groups.part.0+0x90/0x140 [ 134.191499][ T791] sysfs_create_groups+0x25/0x50 [ 134.191499][ T791] device_add+0x7fd/0x1c40 [ 134.191499][ T791] ? devlink_add_symlinks+0x450/0x450 [ 134.191499][ T791] ? lock_release+0x8e0/0x8e0 [ 134.191499][ T791] ? lock_downgrade+0x830/0x830 [ 134.191499][ T791] ? __schedule+0x88e/0x21e0 [ 134.191499][ T791] ? nd_synchronize+0x20/0x20 [ 135.352934][ C1] hrtimer: interrupt took 56076906 ns [ 134.191499][ T791] nd_async_device_register+0x12/0x80 [ 134.191499][ T791] async_run_entry_fn+0x121/0x530 [ 134.191499][ T791] process_one_work+0x94c/0x1670 [ 134.191499][ T791] ? lock_release+0x8e0/0x8e0 [ 134.191499][ T791] ? pwq_dec_nr_in_flight+0x2d0/0x2d0 [ 134.191499][ T791] ? rwlock_bug.part.0+0x90/0x90 [ 134.191499][ T791] worker_thread+0x64c/0x1120 [ 134.191499][ T791] ? process_one_work+0x1670/0x1670 [ 135.906852][ T791] kthread+0x3b5/0x4a0 [ 135.906852][ T791] ? __kthread_bind_mask+0xc0/0xc0 [ 135.906852][ T791] ? __kthread_bind_mask+0xc0/0xc0 [ 135.906852][ T791] ret_from_fork+0x1f/0x30 [ 135.906852][ T791] Kernel Offset: disabled [ 135.906852][ T791] Rebooting in 86400 seconds..