[ 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=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 [ 0.000013][ T0] kvm-clock: cpu 0, msr becf001, primary cpu clock [ 0.000014][ T0] kvm-clock: using sched offset of 7098286751 cycles [ 0.007991][ T0] clocksource: kvm-clock: mask: 0xffffffffffffffff max_cycles: 0x1cd42e4dffb, max_idle_ns: 881590591483 ns [ 0.029312][ T0] tsc: Detected 2000.164 MHz processor [ 0.045400][ T0] last_pfn = 0x7ffdd max_arch_pfn = 0x400000000 [ 0.054580][ T0] x86/PAT: Configuration [0-7]: WB WC UC- UC WB WP UC- WT [ 0.077719][ T0] found SMP MP-table at [mem 0x000f5a50-0x000f5a5f] [ 0.087904][ T0] check: Scanning 1 areas for low memory corruption [ 0.099401][ T0] ACPI: Early table checksum verification disabled [ 0.108035][ T0] ACPI: RSDP 0x00000000000F5880 000014 (v00 BOCHS ) [ 0.115847][ T0] ACPI: RSDT 0x000000007FFE1F9D 000040 (v01 BOCHS BXPCRSDT 00000001 BXPC 00000001) [ 0.128010][ T0] ACPI: FACP 0x000000007FFE1860 0000F4 (v03 BOCHS BXPCFACP 00000001 BXPC 00000001) [ 0.139939][ T0] ACPI: DSDT 0x000000007FFDF040 002820 (v01 BOCHS BXPCDSDT 00000001 BXPC 00000001) [ 0.151201][ T0] ACPI: FACS 0x000000007FFDF000 000040 [ 0.157569][ T0] ACPI: APIC 0x000000007FFE1954 0000B0 (v01 BOCHS BXPCAPIC 00000001 BXPC 00000001) [ 0.168287][ T0] ACPI: HPET 0x000000007FFE1A04 000038 (v01 BOCHS BXPCHPET 00000001 BXPC 00000001) [ 0.178882][ T0] ACPI: SRAT 0x000000007FFE1A3C 000178 (v01 BOCHS BXPCSRAT 00000001 BXPC 00000001) [ 0.189941][ T0] ACPI: MCFG 0x000000007FFE1BB4 00003C (v01 BOCHS BXPCMCFG 00000001 BXPC 00000001) [ 0.200661][ T0] ACPI: SSDT 0x000000007FFE1BF0 0002CD (v01 BOCHS NVDIMM 00000001 BXPC 00000001) [ 0.212122][ T0] ACPI: NFIT 0x000000007FFE1EBD 0000E0 (v01 BOCHS BXPCNFIT 00000001 BXPC 00000001) [ 0.226184][ T0] SRAT: PXM 0 -> APIC 0x00 -> Node 0 [ 0.232431][ T0] SRAT: PXM 0 -> APIC 0x01 -> Node 0 [ 0.238833][ T0] SRAT: PXM 0 -> APIC 0x02 -> Node 0 [ 0.245152][ T0] SRAT: PXM 0 -> APIC 0x03 -> Node 0 [ 0.251166][ T0] SRAT: PXM 1 -> APIC 0x04 -> Node 1 [ 0.257146][ T0] SRAT: PXM 1 -> APIC 0x05 -> Node 1 [ 0.263883][ T0] SRAT: PXM 1 -> APIC 0x06 -> Node 1 [ 0.270104][ T0] SRAT: PXM 1 -> APIC 0x07 -> Node 1 [ 0.276373][ T0] ACPI: SRAT: Node 0 PXM 0 [mem 0x00000000-0x0009ffff] [ 0.284784][ T0] ACPI: SRAT: Node 0 PXM 0 [mem 0x00100000-0x3fffffff] [ 0.293018][ T0] ACPI: SRAT: Node 1 PXM 1 [mem 0x40000000-0x7fffffff] [ 0.301213][ T0] ACPI: SRAT: Node 1 PXM 1 [mem 0x100000000-0x57fffffff] hotplug [ 0.310507][ T0] NUMA: Node 0 [mem 0x00000000-0x0009ffff] + [mem 0x00100000-0x3fffffff] -> [mem 0x00000000-0x3fffffff] [ 0.323542][ T0] Faking node 0 at [mem 0x0000000000000000-0x000000003fffffff] (1024MB) [ 0.333646][ T0] Faking node 1 at [mem 0x0000000040000000-0x000000007ffdcfff] (1023MB) [ 0.344776][ T0] NODE_DATA(0) allocated [mem 0x3fffb000-0x3fffffff] [ 0.354398][ T0] NODE_DATA(1) allocated [mem 0x7ffd7000-0x7ffdbfff] [ 0.423295][ T0] Zone ranges: [ 0.428953][ T0] DMA [mem 0x0000000000001000-0x0000000000ffffff] [ 0.439130][ T0] DMA32 [mem 0x0000000001000000-0x000000007ffdcfff] [ 0.450514][ T0] Normal empty [ 0.456616][ T0] Device empty [ 0.462451][ T0] Movable zone start for each node [ 0.468776][ T0] Early memory node ranges [ 0.473733][ T0] node 0: [mem 0x0000000000001000-0x000000000009efff] [ 0.481705][ T0] node 0: [mem 0x0000000000100000-0x000000003fffffff] [ 0.490615][ T0] node 1: [mem 0x0000000040000000-0x000000007ffdcfff] [ 0.499579][ T0] Zeroed struct page in unavailable ranges: 133 pages [ 0.499595][ T0] Initmem setup node 0 [mem 0x0000000000001000-0x000000003fffffff] [ 0.526506][ T0] Initmem setup node 1 [mem 0x0000000040000000-0x000000007ffdcfff] [ 2.127159][ T0] kasan: KernelAddressSanitizer initialized [ 2.158912][ T0] ACPI: PM-Timer IO Port: 0x608 [ 2.171109][ T0] ACPI: LAPIC_NMI (acpi_id[0xff] dfl dfl lint[0x1]) [ 2.186500][ T0] IOAPIC[0]: apic_id 0, version 17, address 0xfec00000, GSI 0-23 [ 2.198239][ T0] ACPI: INT_SRC_OVR (bus 0 bus_irq 0 global_irq 2 dfl dfl) [ 2.209367][ T0] ACPI: INT_SRC_OVR (bus 0 bus_irq 5 global_irq 5 high level) [ 2.219642][ T0] ACPI: INT_SRC_OVR (bus 0 bus_irq 9 global_irq 9 high level) [ 2.229348][ T0] ACPI: INT_SRC_OVR (bus 0 bus_irq 10 global_irq 10 high level) [ 2.239396][ T0] ACPI: INT_SRC_OVR (bus 0 bus_irq 11 global_irq 11 high level) [ 2.249430][ T0] Using ACPI (MADT) for SMP configuration information [ 2.258569][ T0] ACPI: HPET id: 0x8086a201 base: 0xfed00000 [ 2.267353][ T0] TSC deadline timer available [ 2.274271][ T0] smpboot: Allowing 8 CPUs, 4 hotplug CPUs [ 2.283785][ T0] kvm-guest: KVM setup pv remote TLB flush [ 2.292747][ T0] PM: hibernation: Registered nosave memory: [mem 0x00000000-0x00000fff] [ 2.304324][ T0] PM: hibernation: Registered nosave memory: [mem 0x0009f000-0x0009ffff] [ 2.316438][ T0] PM: hibernation: Registered nosave memory: [mem 0x000a0000-0x000effff] [ 2.327667][ T0] PM: hibernation: Registered nosave memory: [mem 0x000f0000-0x000fffff] [ 2.338911][ T0] [mem 0xc0000000-0xfed1bfff] available for PCI devices [ 2.348459][ T0] Booting paravirtualized kernel on KVM [ 2.356798][ T0] clocksource: refined-jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604462750000 ns [ 2.424699][ T0] setup_percpu: NR_CPUS:64 nr_cpumask_bits:64 nr_cpu_ids:8 nr_node_ids:2 [ 2.457097][ T0] percpu: Embedded 65 pages/cpu s226696 r8192 d31352 u1048576 [ 2.472242][ T0] kvm-guest: stealtime: cpu 0, msr 2ce20a40 [ 2.485050][ T0] kvm-guest: PV spinlocks enabled [ 2.494574][ T0] PV qspinlock hash table entries: 256 (order: 0, 4096 bytes, linear) [ 2.510403][ T0] Built 2 zonelists, mobility grouping on. Total pages: 515942 [ 2.521703][ T0] Policy zone: DMA32 [ 2.526939][ 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 [ 2.634299][ T0] mem auto-init: stack:off, heap alloc:on, heap free:off [ 3.096953][ T0] Memory: 1503356K/2096620K available (116743K kernel code, 17674K rwdata, 21636K rodata, 2792K init, 23936K bss, 593008K reserved, 0K cma-reserved) [ 3.147635][ T0] Running RCU self tests [ 3.153694][ T0] rcu: Preemptible hierarchical RCU implementation. [ 3.162875][ T0] rcu: RCU lockdep checking is enabled. [ 3.171710][ T0] rcu: RCU restricting CPUs from NR_CPUS=64 to nr_cpu_ids=8. [ 3.183359][ T0] rcu: RCU callback double-/use-after-free debug enabled. [ 3.193630][ T0] rcu: RCU debug extended QS entry/exit. [ 3.201105][ T0] All grace periods are expedited (rcu_expedited). [ 3.210056][ T0] Trampoline variant of Tasks RCU enabled. [ 3.217429][ T0] rcu: RCU calculated value of scheduler-enlistment delay is 10 jiffies. [ 3.228003][ T0] rcu: Adjusting geometry for rcu_fanout_leaf=16, nr_cpu_ids=8 [ 3.250859][ T0] NR_IRQS: 4352, nr_irqs: 488, preallocated irqs: 16 [ 3.275166][ T0] random: get_random_bytes called from start_kernel+0x23b/0x46a with crng_init=0 [ 3.387303][ T0] Console: colour VGA+ 80x25 [ 3.407294][ T0] printk: console [ttyS0] enabled [ 3.407294][ T0] printk: console [ttyS0] enabled [ 3.420220][ T0] printk: bootconsole [earlyser0] disabled [ 3.420220][ T0] printk: bootconsole [earlyser0] disabled [ 3.435433][ T0] Lock dependency validator: Copyright (c) 2006 Red Hat, Inc., Ingo Molnar [ 3.447373][ T0] ... MAX_LOCKDEP_SUBCLASSES: 8 [ 3.453617][ T0] ... MAX_LOCK_DEPTH: 48 [ 3.460229][ T0] ... MAX_LOCKDEP_KEYS: 8192 [ 3.466583][ T0] ... CLASSHASH_SIZE: 4096 [ 3.473150][ T0] ... MAX_LOCKDEP_ENTRIES: 32768 [ 3.479048][ T0] ... MAX_LOCKDEP_CHAINS: 65536 [ 3.485448][ T0] ... CHAINHASH_SIZE: 32768 [ 3.491952][ T0] memory used by lock dependency info: 6301 kB [ 3.500703][ T0] memory used for stack traces: 4224 kB [ 3.508319][ T0] per task-struct memory footprint: 1920 bytes [ 3.519310][ T0] mempolicy: Enabling automatic NUMA balancing. Configure with numa_balancing= or the kernel.numa_balancing sysctl [ 3.537483][ T0] ACPI: Core revision 20200717 [ 3.555995][ T0] clocksource: hpet: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604467 ns [ 3.582046][ T0] APIC: Switch to symmetric I/O mode setup [ 3.599321][ T0] x2apic enabled [ 3.608338][ T0] Switched APIC routing to physical x2apic. [ 3.623817][ T0] kvm-guest: setup PV IPIs [ 3.660899][ T0] ..TIMER: vector=0x30 apic1=0 pin1=2 apic2=-1 pin2=-1 [ 3.674607][ T0] clocksource: tsc-early: mask: 0xffffffffffffffff max_cycles: 0x1cd4c92266a, max_idle_ns: 440795223404 ns [ 3.696771][ T0] Calibrating delay loop (skipped) preset value.. 4000.32 BogoMIPS (lpj=20001640) [ 3.715952][ T0] pid_max: default: 32768 minimum: 301 [ 3.728437][ T0] LSM: Security Framework initializing [ 3.735359][ T0] LSM: security= is ignored because it is superseded by lsm= [ 3.745626][ T0] Yama: becoming mindful. [ 3.757891][ T0] TOMOYO Linux initialized [ 3.769442][ T0] AppArmor: AppArmor initialized [ 3.775256][ T0] LSM support for eBPF active [ 3.800809][ T0] Dentry cache hash table entries: 262144 (order: 9, 2097152 bytes, vmalloc) [ 3.821312][ T0] Inode-cache hash table entries: 131072 (order: 8, 1048576 bytes, vmalloc) [ 3.826226][ T0] Mount-cache hash table entries: 4096 (order: 3, 32768 bytes, vmalloc) [ 3.835446][ T0] Mountpoint-cache hash table entries: 4096 (order: 3, 32768 bytes, vmalloc) [ 3.883388][ T0] x86/cpu: User Mode Instruction Prevention (UMIP) activated [ 3.900526][ T0] Last level iTLB entries: 4KB 0, 2MB 0, 4MB 0 [ 3.905239][ T0] Last level dTLB entries: 4KB 0, 2MB 0, 4MB 0, 1GB 0 [ 3.916038][ T0] Spectre V1 : Mitigation: usercopy/swapgs barriers and __user pointer sanitization [ 3.925399][ T0] Spectre V2 : Spectre mitigation: kernel not compiled with retpoline; no mitigation available! [ 3.925465][ T0] Speculative Store Bypass: Mitigation: Speculative Store Bypass disabled via prctl [ 3.946034][ T0] TAA: Mitigation: Clear CPU buffers [ 3.955237][ T0] MDS: Mitigation: Clear CPU buffers [ 3.989450][ T0] Freeing SMP alternatives memory: 104K [ 4.090676][ T1] smpboot: CPU0: Intel(R) Xeon(R) CPU @ 2.00GHz (family: 0x6, model: 0x55, stepping: 0x3) [ 4.113737][ T1] Performance Events: unsupported p6 CPU model 85 no PMU driver, software events only. [ 4.122640][ T1] rcu: Hierarchical SRCU implementation. [ 4.133552][ T1] dyndbg: Ignore empty _ddebug table in a CONFIG_DYNAMIC_DEBUG_CORE build [ 4.143576][ T1] NMI watchdog: Perf NMI watchdog permanently disabled [ 4.153876][ T1] smp: Bringing up secondary CPUs ... [ 4.165898][ T1] x86: Booting SMP configuration: [ 4.172802][ T1] .... node #0, CPUs: #1 [ 0.362623][ T0] kvm-clock: cpu 1, msr becf041, secondary cpu clock [ 4.198035][ T15] kvm-guest: stealtime: cpu 1, msr 2cf20a40 [ 4.207668][ T1] MDS CPU bug present and SMT on, data leak possible. See https://www.kernel.org/doc/html/latest/admin-guide/hw-vuln/mds.html for more details. [ 4.215378][ T1] TAA CPU bug present and SMT on, data leak possible. See https://www.kernel.org/doc/html/latest/admin-guide/hw-vuln/tsx_async_abort.html for more details. [ 4.233889][ T1] #2 [ 0.362623][ T0] kvm-clock: cpu 2, msr becf081, secondary cpu clock [ 4.251115][ T20] kvm-guest: stealtime: cpu 2, msr 2d020a40 [ 4.268406][ T1] #3 [ 0.362623][ T0] kvm-clock: cpu 3, msr becf0c1, secondary cpu clock [ 4.287003][ T25] kvm-guest: stealtime: cpu 3, msr 2d120a40 [ 4.295676][ T1] smp: Brought up 2 nodes, 4 CPUs [ 4.301795][ T1] smpboot: Max logical packages: 2 [ 4.305299][ T1] smpboot: Total of 4 processors activated (16001.31 BogoMIPS) [ 4.335739][ T1] devtmpfs: initialized [ 4.346413][ T1] x86/mm: Memory block size: 128MB [ 4.417782][ T1] clocksource: jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604462750000 ns [ 4.425217][ T33] kworker/u17:0 (33) used greatest stack depth: 27544 bytes left [ 4.429931][ T1] futex hash table entries: 2048 (order: 6, 262144 bytes, vmalloc) [ 4.452881][ T1] xor: automatically using best checksumming function avx [ 4.465726][ T1] PM: RTC time: 08:34:22, date: 2020-08-16 [ 4.490470][ T1] NET: Registered protocol family 16 [ 4.505933][ T1] audit: initializing netlink subsys (disabled) [ 4.521298][ T39] audit: type=2000 audit(1597566863.034:1): state=initialized audit_enabled=0 res=1 [ 4.535557][ T1] thermal_sys: Registered thermal governor 'step_wise' [ 4.535573][ T1] thermal_sys: Registered thermal governor 'user_space' [ 4.557149][ T1] cpuidle: using governor menu [ 4.577213][ T1] NET: Registered protocol family 42 [ 4.605284][ T1] ACPI: bus type PCI registered [ 4.619953][ T1] dca service started, version 1.12.1 [ 4.627300][ T1] PCI: MMCONFIG for domain 0000 [bus 00-ff] at [mem 0xb0000000-0xbfffffff] (base 0xb0000000) [ 4.645425][ T1] PCI: MMCONFIG at [mem 0xb0000000-0xbfffffff] reserved in E820 [ 4.836184][ T1] PCI: Using configuration type 1 for base access [ 4.895963][ T108] kworker/u17:3 (108) used greatest stack depth: 26920 bytes left [ 5.266509][ T1] HugeTLB registered 2.00 MiB page size, pre-allocated 0 pages [ 5.339600][ T1] cryptd: max_cpu_qlen set to 1000 [ 5.565385][ T1] raid6: avx512x4 gen() 15801 MB/s [ 5.735233][ T1] raid6: avx512x4 xor() 6876 MB/s [ 5.905572][ T1] raid6: avx512x2 gen() 13411 MB/s [ 6.067791][ T1] raid6: avx512x2 xor() 6109 MB/s [ 6.238877][ T1] raid6: avx512x1 gen() 8600 MB/s [ 6.425217][ T1] raid6: avx512x1 xor() 3222 MB/s [ 6.586371][ T1] raid6: avx2x4 gen() 10879 MB/s [ 6.775399][ T1] raid6: avx2x4 xor() 5757 MB/s [ 6.936984][ T1] raid6: avx2x2 gen() 6734 MB/s [ 7.107397][ T1] raid6: avx2x2 xor() 3240 MB/s [ 7.278188][ T1] raid6: avx2x1 gen() 4447 MB/s [ 7.448933][ T1] raid6: avx2x1 xor() 1692 MB/s [ 7.620323][ T1] raid6: sse2x4 gen() 5441 MB/s [ 7.790975][ T1] raid6: sse2x4 xor() 2917 MB/s [ 7.959021][ T1] raid6: sse2x2 gen() 3415 MB/s [ 8.130208][ T1] raid6: sse2x2 xor() 1787 MB/s [ 8.300200][ T1] raid6: sse2x1 gen() 2168 MB/s [ 8.479758][ T1] raid6: sse2x1 xor() 712 MB/s [ 8.496055][ T1] raid6: using algorithm avx512x4 gen() 15801 MB/s [ 8.505161][ T1] raid6: .... xor() 6876 MB/s, rmw enabled [ 8.506040][ T1] raid6: using avx512x2 recovery algorithm [ 8.572514][ T1] ACPI: Added _OSI(Module Device) [ 8.586180][ T1] ACPI: Added _OSI(Processor Device) [ 8.595476][ T1] ACPI: Added _OSI(3.0 _SCP Extensions) [ 8.602283][ T1] ACPI: Added _OSI(Processor Aggregator Device) [ 8.605813][ T1] ACPI: Added _OSI(Linux-Dell-Video) [ 8.611276][ T1] ACPI: Added _OSI(Linux-Lenovo-NV-HDMI-Audio) [ 8.625593][ T1] ACPI: Added _OSI(Linux-HPI-Hybrid-Graphics) [ 8.692135][ T1] ACPI: 2 ACPI AML tables successfully acquired and loaded [ 8.776784][ T1] ACPI: Interpreter enabled [ 8.784214][ T1] ACPI: (supports S0 S3 S4 S5) [ 8.795528][ T1] ACPI: Using IOAPIC for interrupt routing [ 8.808833][ T1] PCI: Using host bridge windows from ACPI; if necessary, use "pci=nocrs" and report a bug [ 8.831158][ T1] ACPI: Enabled 3 GPEs in block 00 to 3F [ 8.976373][ T1] ACPI: PCI Root Bridge [PCI0] (domain 0000 [bus 00-ff]) [ 8.987534][ T1] acpi PNP0A08:00: _OSC: OS supports [ExtendedConfig ASPM ClockPM Segments MSI HPX-Type3] [ 9.000306][ T1] acpi PNP0A08:00: _OSC: platform does not support [LTR] [ 9.008369][ T1] acpi PNP0A08:00: _OSC: OS now controls [PCIeHotplug PME AER PCIeCapability] [ 9.032076][ T1] PCI host bridge to bus 0000:00 [ 9.035385][ T1] pci_bus 0000:00: Unknown NUMA node; performance will be reduced [ 9.045434][ T1] pci_bus 0000:00: root bus resource [io 0x0000-0x0cf7 window] [ 9.053113][ T1] pci_bus 0000:00: root bus resource [io 0x0d00-0xffff window] [ 9.065268][ T1] pci_bus 0000:00: root bus resource [mem 0x000a0000-0x000bffff window] [ 9.074135][ T1] pci_bus 0000:00: root bus resource [mem 0x80000000-0xafffffff window] [ 9.075267][ T1] pci_bus 0000:00: root bus resource [mem 0xc0000000-0xfebfffff window] [ 9.083778][ T1] pci_bus 0000:00: root bus resource [mem 0x580000000-0xd7fffffff window] [ 9.095828][ T1] pci_bus 0000:00: root bus resource [bus 00-ff] [ 9.105383][ T1] pci 0000:00:00.0: [8086:29c0] type 00 class 0x060000 [ 9.126596][ T1] pci 0000:00:01.0: [1234:1111] type 00 class 0x030000 [ 9.165217][ T1] pci 0000:00:01.0: reg 0x10: [mem 0xfd000000-0xfdffffff pref] [ 9.265217][ T1] pci 0000:00:01.0: reg 0x18: [mem 0xfebf8000-0xfebf8fff] [ 9.395217][ T1] pci 0000:00:01.0: reg 0x30: [mem 0xfebe0000-0xfebeffff pref] [ 9.544466][ T1] pci 0000:00:02.0: [8086:10d3] type 00 class 0x020000 [ 9.575217][ T1] pci 0000:00:02.0: reg 0x10: [mem 0xfeb80000-0xfeb9ffff] [ 9.601284][ T1] pci 0000:00:02.0: reg 0x14: [mem 0xfeba0000-0xfebbffff] [ 9.628649][ T1] pci 0000:00:02.0: reg 0x18: [io 0xc680-0xc69f] [ 9.647524][ T1] pci 0000:00:02.0: reg 0x1c: [mem 0xfebf0000-0xfebf3fff] [ 9.662982][ T1] pci 0000:00:02.0: reg 0x30: [mem 0xfeb00000-0xfeb3ffff pref] [ 9.685401][ T1] pci 0000:00:03.0: [8086:100e] type 00 class 0x020000 [ 9.697868][ T1] pci 0000:00:03.0: reg 0x10: [mem 0xfebc0000-0xfebdffff] [ 9.708099][ T1] pci 0000:00:03.0: reg 0x14: [io 0xc600-0xc63f] [ 9.725271][ T1] pci 0000:00:03.0: reg 0x30: [mem 0xfeb40000-0xfeb7ffff pref] [ 9.738005][ T1] pci 0000:00:04.0: [1274:5000] type 00 class 0x040100 [ 9.746900][ T1] pci 0000:00:04.0: reg 0x10: [io 0xc400-0xc4ff] [ 9.765483][ T1] pci 0000:00:05.0: [8086:2415] type 00 class 0x040100 [ 9.776966][ T1] pci 0000:00:05.0: reg 0x10: [io 0xc000-0xc3ff] [ 9.785152][ T1] pci 0000:00:05.0: reg 0x14: [io 0xc500-0xc5ff] [ 9.806945][ T1] pci 0000:00:06.0: [8086:2668] type 00 class 0x040300 [ 9.815495][ T1] pci 0000:00:06.0: reg 0x10: [mem 0xfebf4000-0xfebf7fff] [ 9.834615][ T1] pci 0000:00:07.0: [1af4:1009] type 00 class 0x000200 [ 9.837710][ T1] pci 0000:00:07.0: reg 0x10: [io 0xc6a0-0xc6bf] [ 9.846318][ T1] pci 0000:00:07.0: reg 0x14: [mem 0xfebf9000-0xfebf9fff] [ 9.858644][ T1] pci 0000:00:07.0: reg 0x20: [mem 0xfe000000-0xfe003fff 64bit pref] [ 9.887469][ T1] pci 0000:00:1d.0: [8086:2934] type 00 class 0x0c0300 [ 9.900344][ T1] pci 0000:00:1d.0: reg 0x20: [io 0xc6c0-0xc6df] [ 9.911989][ T1] pci 0000:00:1d.1: [8086:2935] type 00 class 0x0c0300 [ 9.921310][ T1] pci 0000:00:1d.1: reg 0x20: [io 0xc6e0-0xc6ff] [ 9.940560][ T1] pci 0000:00:1d.2: [8086:2936] type 00 class 0x0c0300 [ 9.951559][ T1] pci 0000:00:1d.2: reg 0x20: [io 0xc700-0xc71f] [ 9.961245][ T1] pci 0000:00:1d.7: [8086:293a] type 00 class 0x0c0320 [ 9.987165][ T1] pci 0000:00:1d.7: reg 0x10: [mem 0xfebfa000-0xfebfafff] [ 10.004248][ T1] pci 0000:00:1f.0: [8086:2918] type 00 class 0x060100 [ 10.012004][ T1] pci 0000:00:1f.0: quirk: [io 0x0600-0x067f] claimed by ICH6 ACPI/GPIO/TCO [ 10.031458][ T1] pci 0000:00:1f.2: [8086:2922] type 00 class 0x010601 [ 10.052163][ T1] pci 0000:00:1f.2: reg 0x20: [io 0xc720-0xc73f] [ 10.056510][ T1] pci 0000:00:1f.2: reg 0x24: [mem 0xfebfb000-0xfebfbfff] [ 10.071301][ T1] pci 0000:00:1f.3: [8086:2930] type 00 class 0x0c0500 [ 10.091931][ T1] pci 0000:00:1f.3: reg 0x20: [io 0x0700-0x073f] [ 10.142312][ T1] ACPI: PCI Interrupt Link [LNKA] (IRQs 5 *10 11) [ 10.159243][ T1] ACPI: PCI Interrupt Link [LNKB] (IRQs 5 *10 11) [ 10.167564][ T1] ACPI: PCI Interrupt Link [LNKC] (IRQs 5 10 *11) [ 10.187683][ T1] ACPI: PCI Interrupt Link [LNKD] (IRQs 5 10 *11) [ 10.197110][ T1] ACPI: PCI Interrupt Link [LNKE] (IRQs 5 *10 11) [ 10.206352][ T1] ACPI: PCI Interrupt Link [LNKF] (IRQs 5 *10 11) [ 10.217628][ T1] ACPI: PCI Interrupt Link [LNKG] (IRQs 5 10 *11) [ 10.227195][ T1] ACPI: PCI Interrupt Link [LNKH] (IRQs 5 10 *11) [ 10.236108][ T1] ACPI: PCI Interrupt Link [GSIA] (IRQs *16) [ 10.245517][ T1] ACPI: PCI Interrupt Link [GSIB] (IRQs *17) [ 10.253665][ T1] ACPI: PCI Interrupt Link [GSIC] (IRQs *18) [ 10.265509][ T1] ACPI: PCI Interrupt Link [GSID] (IRQs *19) [ 10.273248][ T1] ACPI: PCI Interrupt Link [GSIE] (IRQs *20) [ 10.275513][ T1] ACPI: PCI Interrupt Link [GSIF] (IRQs *21) [ 10.282289][ T1] ACPI: PCI Interrupt Link [GSIG] (IRQs *22) [ 10.295556][ T1] ACPI: PCI Interrupt Link [GSIH] (IRQs *23) [ 10.367710][ T1] iommu: Default domain type: Translated [ 10.383689][ T1] pci 0000:00:01.0: vgaarb: setting as boot VGA device [ 10.385217][ T1] pci 0000:00:01.0: vgaarb: VGA device added: decodes=io+mem,owns=io+mem,locks=none [ 10.395348][ T1] pci 0000:00:01.0: vgaarb: bridge control possible [ 10.402106][ T1] vgaarb: loaded [ 10.437429][ T1] SCSI subsystem initialized [ 10.462664][ T1] ACPI: bus type USB registered [ 10.477894][ T1] usbcore: registered new interface driver usbfs [ 10.485704][ T1] usbcore: registered new interface driver hub [ 10.495308][ T1] usbcore: registered new device driver usb [ 10.509341][ T1] mc: Linux media interface: v0.10 [ 10.515534][ T1] videodev: Linux video capture interface: v2.00 [ 10.524440][ T1] pps_core: LinuxPPS API ver. 1 registered [ 10.525261][ T1] pps_core: Software ver. 5.3.6 - Copyright 2005-2007 Rodolfo Giometti [ 10.545693][ T1] PTP clock support registered [ 10.566593][ T1] EDAC MC: Ver: 3.0.0 [ 10.589608][ T1] Advanced Linux Sound Architecture Driver Initialized. [ 10.636878][ T1] Bluetooth: Core ver 2.22 [ 10.645275][ T1] NET: Registered protocol family 31 [ 10.655268][ T1] Bluetooth: HCI device and connection manager initialized [ 10.666485][ T1] Bluetooth: HCI socket layer initialized [ 10.675723][ T1] Bluetooth: L2CAP socket layer initialized [ 10.695983][ T1] Bluetooth: SCO socket layer initialized [ 10.706329][ T1] NET: Registered protocol family 8 [ 10.725396][ T1] NET: Registered protocol family 20 [ 10.747977][ T1] NetLabel: Initializing [ 10.755335][ T1] NetLabel: domain hash size = 128 [ 10.775473][ T1] NetLabel: protocols = UNLABELED CIPSOv4 CALIPSO [ 10.799444][ T1] NetLabel: unlabeled traffic allowed by default [ 10.829518][ T1] nfc: nfc_init: NFC Core ver 0.1 [ 10.846558][ T1] NET: Registered protocol family 39 [ 10.866167][ T1] PCI: Using ACPI for IRQ routing [ 11.764224][ T1] hpet0: at MMIO 0xfed00000, IRQs 2, 8, 0 [ 11.766344][ T1] hpet0: 3 comparators, 64-bit 100.000000 MHz counter [ 11.787007][ T1] clocksource: Switched to clocksource kvm-clock [ 15.066714][ T1] VFS: Disk quotas dquot_6.6.0 [ 15.085398][ T1] VFS: Dquot-cache hash table entries: 512 (order 0, 4096 bytes) [ 15.095107][ T1] FS-Cache: Loaded [ 15.103887][ T1] CacheFiles: Loaded [ 15.111751][ T1] TOMOYO: 2.6.0 [ 15.115182][ T1] Mandatory Access Control activated. [ 15.129897][ T1] AppArmor: AppArmor Filesystem Enabled [ 15.139075][ T1] pnp: PnP ACPI init [ 15.175590][ T1] pnp: PnP ACPI: found 6 devices [ 15.279901][ T1] clocksource: acpi_pm: mask: 0xffffff max_cycles: 0xffffff, max_idle_ns: 2085701024 ns [ 15.306590][ T1] NET: Registered protocol family 2 [ 15.335186][ T1] tcp_listen_portaddr_hash hash table entries: 1024 (order: 4, 81920 bytes, vmalloc) [ 15.354482][ T1] TCP established hash table entries: 16384 (order: 5, 131072 bytes, vmalloc) [ 15.366644][ T1] TCP bind hash table entries: 16384 (order: 8, 1179648 bytes, vmalloc) [ 15.376549][ T1] TCP: Hash tables configured (established 16384 bind 16384) [ 15.390054][ T1] MPTCP token hash table entries: 2048 (order: 5, 180224 bytes, vmalloc) [ 15.406335][ T1] UDP hash table entries: 1024 (order: 5, 163840 bytes, vmalloc) [ 15.419451][ T1] UDP-Lite hash table entries: 1024 (order: 5, 163840 bytes, vmalloc) [ 15.431950][ T1] NET: Registered protocol family 1 [ 15.450309][ T1] RPC: Registered named UNIX socket transport module. [ 15.462029][ T1] RPC: Registered udp transport module. [ 15.470109][ T1] RPC: Registered tcp transport module. [ 15.476822][ T1] RPC: Registered tcp NFSv4.1 backchannel transport module. [ 15.490570][ T1] NET: Registered protocol family 44 [ 15.500092][ T1] pci_bus 0000:00: resource 4 [io 0x0000-0x0cf7 window] [ 15.510069][ T1] pci_bus 0000:00: resource 5 [io 0x0d00-0xffff window] [ 15.520107][ T1] pci_bus 0000:00: resource 6 [mem 0x000a0000-0x000bffff window] [ 15.528787][ T1] pci_bus 0000:00: resource 7 [mem 0x80000000-0xafffffff window] [ 15.537193][ T1] pci_bus 0000:00: resource 8 [mem 0xc0000000-0xfebfffff window] [ 15.545860][ T1] pci_bus 0000:00: resource 9 [mem 0x580000000-0xd7fffffff window] [ 15.557061][ T1] pci 0000:00:01.0: Video device with shadowed ROM at [mem 0x000c0000-0x000dffff] [ 15.569509][ T1] pci 0000:00:01.0: pci_fixup_video+0x0/0x270 took 11778 usecs [ 15.599291][ T1] PCI Interrupt Link [GSIA] enabled at IRQ 16 [ 15.633023][ T1] pci 0000:00:1d.0: quirk_usb_early_handoff+0x0/0x105b took 50412 usecs [ 15.656080][ T1] PCI Interrupt Link [GSIB] enabled at IRQ 17 [ 15.677498][ T1] pci 0000:00:1d.1: quirk_usb_early_handoff+0x0/0x105b took 33619 usecs [ 15.698877][ T1] PCI Interrupt Link [GSIC] enabled at IRQ 18 [ 15.719312][ T1] pci 0000:00:1d.2: quirk_usb_early_handoff+0x0/0x105b took 31912 usecs [ 15.742478][ T1] PCI Interrupt Link [GSID] enabled at IRQ 19 [ 15.768631][ T1] pci 0000:00:1d.7: quirk_usb_early_handoff+0x0/0x105b took 38093 usecs [ 15.780204][ T1] PCI: CLS 0 bytes, default 64 [ 15.800996][ T1] PCI-DMA: Using software bounce buffering for IO (SWIOTLB) [ 15.809592][ T1] software IO TLB: mapped [mem 0x7ac00000-0x7ec00000] (64MB) [ 15.829938][ T1] kvm: no hardware support [ 15.835498][ T1] has_svm: not amd or hygon [ 15.840114][ T1] kvm: no hardware support [ 15.845738][ T1] clocksource: tsc: mask: 0xffffffffffffffff max_cycles: 0x1cd4c92266a, max_idle_ns: 440795223404 ns [ 15.858370][ T1] clocksource: Switched to clocksource tsc [ 15.865932][ T1] mce: Machine check injector initialized [ 15.886808][ T1] check: Scanning for low memory corruption every 60 seconds [ 16.111726][ T1] Initialise system trusted keyrings [ 16.126251][ T1] workingset: timestamp_bits=40 max_order=19 bucket_order=0 [ 16.136298][ T1] zbud: loaded [ 16.154601][ T1] DLM installed [ 16.169372][ T1] squashfs: version 4.0 (2009/01/31) Phillip Lougher [ 16.192788][ T1] FS-Cache: Netfs 'nfs' registered for caching [ 16.207074][ T1] NFS: Registering the id_resolver key type [ 16.219491][ T1] Key type id_resolver registered [ 16.228289][ T1] Key type id_legacy registered [ 16.243055][ T1] nfs4filelayout_init: NFSv4 File Layout Driver Registering... [ 16.260799][ T1] Installing knfsd (copyright (C) 1996 okir@monad.swb.de). [ 16.289305][ T1] FS-Cache: Netfs 'cifs' registered for caching [ 16.310361][ T1] Key type cifs.spnego registered [ 16.323230][ T1] Key type cifs.idmap registered [ 16.335153][ T1] ntfs: driver 2.1.32 [Flags: R/W]. [ 16.349454][ T1] fuse: init (API version 7.31) [ 16.374887][ T1] JFS: nTxBlock = 8192, nTxLock = 65536 [ 16.419910][ T1] SGI XFS with ACLs, security attributes, realtime, quota, no debug enabled [ 16.469402][ T1] 9p: Installing v9fs 9p2000 file system support [ 16.488077][ T1] FS-Cache: Netfs '9p' registered for caching [ 16.502217][ T1] ocfs2: Registered cluster interface o2cb [ 16.516894][ T1] ocfs2: Registered cluster interface user [ 16.531838][ T1] OCFS2 User DLM kernel interface loaded [ 16.566332][ T1] gfs2: GFS2 installed [ 16.590558][ T1] FS-Cache: Netfs 'ceph' registered for caching [ 16.607066][ T1] ceph: loaded (mds proto 32) [ 16.637887][ T1] NET: Registered protocol family 38 [ 16.647860][ T1] async_tx: api initialized (async) [ 16.656495][ T1] Key type asymmetric registered [ 16.666539][ T1] Asymmetric key parser 'x509' registered [ 16.677631][ T1] Asymmetric key parser 'pkcs8' registered [ 16.684368][ T1] Key type pkcs7_test registered [ 16.690754][ T1] Asymmetric key parser 'tpm_parser' registered [ 16.702135][ T1] Block layer SCSI generic (bsg) driver version 0.4 loaded (major 243) [ 16.718956][ T1] io scheduler mq-deadline registered [ 16.726902][ T1] io scheduler kyber registered [ 16.736657][ T1] io scheduler bfq registered [ 16.770579][ T1] hgafb: HGA card not detected. [ 16.781494][ T1] hgafb: probe of hgafb.0 failed with error -22 [ 16.792563][ T1] usbcore: registered new interface driver udlfb [ 16.819851][ T1] uvesafb: failed to execute /sbin/v86d [ 16.827225][ T1] uvesafb: make sure that the v86d helper is installed and executable [ 16.838510][ T1] uvesafb: Getting VBE info block failed (eax=0x4f00, err=-2) [ 16.848210][ T1] uvesafb: vbe_init() failed with -22 [ 16.856714][ T1] uvesafb: probe of uvesafb.0 failed with error -22 [ 16.870887][ T1] vga16fb: mapped to 0x00000000e61c58fb [ 24.827516][ T1] Console: switching to colour frame buffer device 80x30 [ 34.484216][ T1] fb0: VGA16 VGA frame buffer device [ 34.570274][ T1] input: Power Button as /devices/LNXSYSTM:00/LNXPWRBN:00/input/input0 [ 34.619167][ T1] ACPI: Power Button [PWRF] [ 34.790486][ T217] ================================================================== [ 34.796606][ T217] BUG: KASAN: global-out-of-bounds in internal_create_group+0x9d8/0xb20 [ 34.796606][ T217] Read of size 8 at addr ffffffff8a2e73d0 by task kworker/u17:5/217 [ 34.796606][ T217] [ 34.796606][ T217] CPU: 2 PID: 217 Comm: kworker/u17:5 Not tainted 5.8.0-syzkaller #0 [ 34.796606][ T217] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS rel-1.12.0-59-gc9ba5276e321-prebuilt.qemu.org 04/01/2014 [ 34.796606][ T217] Workqueue: events_unbound async_run_entry_fn [ 34.796606][ T217] Call Trace: [ 34.796606][ T217] dump_stack+0x18f/0x20d [ 34.796606][ T217] ? internal_create_group+0x9d8/0xb20 [ 34.796606][ T217] ? internal_create_group+0x9d8/0xb20 [ 34.796606][ T217] print_address_description.constprop.0.cold+0x5/0x497 [ 34.796606][ T217] ? vprintk_func+0x97/0x1a6 [ 34.796606][ T217] ? internal_create_group+0x9d8/0xb20 [ 34.796606][ T217] ? internal_create_group+0x9d8/0xb20 [ 34.796606][ T217] kasan_report.cold+0x1f/0x37 [ 34.796606][ T217] ? internal_create_group+0x9d8/0xb20 [ 34.796606][ T217] ? state_show+0xf0/0xf0 [ 34.796606][ T217] internal_create_group+0x9d8/0xb20 [ 34.796606][ T217] ? sysfs_remove_group+0x170/0x170 [ 34.796606][ T217] internal_create_groups.part.0+0x90/0x140 [ 34.796606][ T217] sysfs_create_groups+0x25/0x50 [ 34.796606][ T217] device_add+0x7fd/0x1c40 [ 34.796606][ T217] ? devlink_add_symlinks+0x450/0x450 [ 34.796606][ T217] ? lock_release+0x8e0/0x8e0 [ 34.796606][ T217] ? lock_downgrade+0x830/0x830 [ 34.796606][ T217] ? __schedule+0x88e/0x21e0 [ 34.796606][ T217] ? nd_synchronize+0x20/0x20 [ 34.796606][ T217] nd_async_device_register+0x12/0x80 [ 34.796606][ T217] async_run_entry_fn+0x121/0x530 [ 34.796606][ T217] process_one_work+0x94c/0x1670 [ 34.796606][ T217] ? lock_release+0x8e0/0x8e0 [ 34.796606][ T217] ? pwq_dec_nr_in_flight+0x2d0/0x2d0 [ 34.796606][ T217] ? rwlock_bug.part.0+0x90/0x90 [ 34.796606][ T217] worker_thread+0x64c/0x1120 [ 34.796606][ T217] ? __kthread_parkme+0x13f/0x1e0 [ 34.796606][ T217] ? process_one_work+0x1670/0x1670 [ 34.796606][ T217] kthread+0x3b5/0x4a0 [ 34.796606][ T217] ? __kthread_bind_mask+0xc0/0xc0 [ 34.796606][ T217] ? __kthread_bind_mask+0xc0/0xc0 [ 34.796606][ T217] ret_from_fork+0x1f/0x30 [ 34.796606][ T217] [ 34.796606][ T217] The buggy address belongs to the variable: [ 34.796606][ T217] nvdimm_firmware_attributes+0x10/0x40 [ 34.796606][ T217] [ 34.796606][ T217] Memory state around the buggy address: [ 34.796606][ T217] ffffffff8a2e7280: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 34.796606][ T217] ffffffff8a2e7300: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 34.796606][ T217] >ffffffff8a2e7380: 00 00 00 00 f9 f9 f9 f9 00 00 f9 f9 f9 f9 f9 f9 [ 34.796606][ T217] ^ [ 34.796606][ T217] ffffffff8a2e7400: 00 00 00 00 00 00 00 f9 f9 f9 f9 f9 00 00 00 00 [ 34.796606][ T217] ffffffff8a2e7480: 00 00 00 f9 f9 f9 f9 f9 00 00 00 00 00 00 00 f9 [ 34.796606][ T217] ================================================================== [ 34.796606][ T217] Disabling lock debugging due to kernel taint [ 35.212563][ T217] Kernel panic - not syncing: panic_on_warn set ... [ 35.218389][ T217] CPU: 2 PID: 217 Comm: kworker/u17:5 Tainted: G B 5.8.0-syzkaller #0 [ 35.218389][ T217] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS rel-1.12.0-59-gc9ba5276e321-prebuilt.qemu.org 04/01/2014 [ 35.218389][ T217] Workqueue: events_unbound async_run_entry_fn [ 35.218389][ T217] Call Trace: [ 35.218389][ T217] dump_stack+0x18f/0x20d [ 35.218389][ T217] ? internal_create_group+0x9a0/0xb20 [ 35.218389][ T217] panic+0x2e3/0x75c [ 35.218389][ T217] ? __warn_printk+0xf3/0xf3 [ 35.218389][ T217] ? preempt_schedule_common+0x59/0xc0 [ 35.218389][ T217] ? internal_create_group+0x9d8/0xb20 [ 35.218389][ T217] ? preempt_schedule_thunk+0x16/0x18 [ 35.218389][ T217] ? trace_hardirqs_on+0x55/0x220 [ 35.218389][ T217] ? internal_create_group+0x9d8/0xb20 [ 35.218389][ T217] ? internal_create_group+0x9d8/0xb20 [ 35.218389][ T217] end_report+0x4d/0x53 [ 35.218389][ T217] kasan_report.cold+0xd/0x37 [ 35.218389][ T217] ? internal_create_group+0x9d8/0xb20 [ 35.218389][ T217] ? state_show+0xf0/0xf0 [ 35.218389][ T217] internal_create_group+0x9d8/0xb20 [ 35.218389][ T217] ? sysfs_remove_group+0x170/0x170 [ 35.218389][ T217] internal_create_groups.part.0+0x90/0x140 [ 35.218389][ T217] sysfs_create_groups+0x25/0x50 [ 35.218389][ T217] device_add+0x7fd/0x1c40 [ 35.218389][ T217] ? devlink_add_symlinks+0x450/0x450 [ 35.218389][ T217] ? lock_release+0x8e0/0x8e0 [ 35.218389][ T217] ? lock_downgrade+0x830/0x830 [ 35.218389][ T217] ? __schedule+0x88e/0x21e0 [ 35.218389][ T217] ? nd_synchronize+0x20/0x20 [ 35.218389][ T217] nd_async_device_register+0x12/0x80 [ 35.218389][ T217] async_run_entry_fn+0x121/0x530 [ 35.218389][ T217] process_one_work+0x94c/0x1670 [ 35.218389][ T217] ? lock_release+0x8e0/0x8e0 [ 35.218389][ T217] ? pwq_dec_nr_in_flight+0x2d0/0x2d0 [ 35.218389][ T217] ? rwlock_bug.part.0+0x90/0x90 [ 35.218389][ T217] worker_thread+0x64c/0x1120 [ 35.218389][ T217] ? __kthread_parkme+0x13f/0x1e0 [ 35.218389][ T217] ? process_one_work+0x1670/0x1670 [ 35.218389][ T217] kthread+0x3b5/0x4a0 [ 35.218389][ T217] ? __kthread_bind_mask+0xc0/0xc0 [ 35.218389][ T217] ? __kthread_bind_mask+0xc0/0xc0 [ 35.218389][ T217] ret_from_fork+0x1f/0x30 [ 35.218389][ T217] Kernel Offset: disabled [ 35.218389][ T217] Rebooting in 86400 seconds..