[ 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 [ 0.000044][ T0] kvm-clock: cpu 0, msr bed1001, primary cpu clock [ 0.000044][ T0] kvm-clock: using sched offset of 20324128177 cycles [ 0.023114][ T0] clocksource: kvm-clock: mask: 0xffffffffffffffff max_cycles: 0x1cd42e4dffb, max_idle_ns: 881590591483 ns [ 0.082600][ T0] tsc: Detected 2000.164 MHz processor [ 0.118178][ T0] last_pfn = 0x7ffdd max_arch_pfn = 0x400000000 [ 0.140284][ T0] x86/PAT: Configuration [0-7]: WB WC UC- UC WB WP UC- WT [ 0.178165][ T0] found SMP MP-table at [mem 0x000f5a40-0x000f5a4f] [ 0.201156][ T0] check: Scanning 1 areas for low memory corruption [ 0.226562][ T0] ACPI: Early table checksum verification disabled [ 0.255769][ T0] ACPI: RSDP 0x00000000000F5870 000014 (v00 BOCHS ) [ 0.288598][ T0] ACPI: RSDT 0x000000007FFE1F9D 000040 (v01 BOCHS BXPCRSDT 00000001 BXPC 00000001) [ 0.358910][ T0] ACPI: FACP 0x000000007FFE1860 0000F4 (v03 BOCHS BXPCFACP 00000001 BXPC 00000001) [ 0.422090][ T0] ACPI: DSDT 0x000000007FFDF040 002820 (v01 BOCHS BXPCDSDT 00000001 BXPC 00000001) [ 0.477669][ T0] ACPI: FACS 0x000000007FFDF000 000040 [ 0.508454][ T0] ACPI: APIC 0x000000007FFE1954 0000B0 (v01 BOCHS BXPCAPIC 00000001 BXPC 00000001) [ 0.559868][ T0] ACPI: HPET 0x000000007FFE1A04 000038 (v01 BOCHS BXPCHPET 00000001 BXPC 00000001) [ 0.615344][ T0] ACPI: SRAT 0x000000007FFE1A3C 000178 (v01 BOCHS BXPCSRAT 00000001 BXPC 00000001) [ 0.670592][ T0] ACPI: MCFG 0x000000007FFE1BB4 00003C (v01 BOCHS BXPCMCFG 00000001 BXPC 00000001) [ 0.728439][ T0] ACPI: SSDT 0x000000007FFE1BF0 0002CD (v01 BOCHS NVDIMM 00000001 BXPC 00000001) [ 0.774963][ T0] ACPI: NFIT 0x000000007FFE1EBD 0000E0 (v01 BOCHS BXPCNFIT 00000001 BXPC 00000001) [ 0.829236][ T0] SRAT: PXM 0 -> APIC 0x00 -> Node 0 [ 0.850762][ T0] SRAT: PXM 0 -> APIC 0x01 -> Node 0 [ 0.874105][ T0] SRAT: PXM 0 -> APIC 0x02 -> Node 0 [ 0.901970][ T0] SRAT: PXM 0 -> APIC 0x03 -> Node 0 [ 0.926015][ T0] SRAT: PXM 1 -> APIC 0x04 -> Node 1 [ 0.956460][ T0] SRAT: PXM 1 -> APIC 0x05 -> Node 1 [ 0.983167][ T0] SRAT: PXM 1 -> APIC 0x06 -> Node 1 [ 1.004426][ T0] SRAT: PXM 1 -> APIC 0x07 -> Node 1 [ 1.029969][ T0] ACPI: SRAT: Node 0 PXM 0 [mem 0x00000000-0x0009ffff] [ 1.061912][ T0] ACPI: SRAT: Node 0 PXM 0 [mem 0x00100000-0x3fffffff] [ 1.100905][ T0] ACPI: SRAT: Node 1 PXM 1 [mem 0x40000000-0x7fffffff] [ 1.125668][ T0] ACPI: SRAT: Node 1 PXM 1 [mem 0x100000000-0x57fffffff] hotplug [ 1.152441][ T0] NUMA: Node 0 [mem 0x00000000-0x0009ffff] + [mem 0x00100000-0x3fffffff] -> [mem 0x00000000-0x3fffffff] [ 1.186267][ T0] Faking node 0 at [mem 0x0000000000000000-0x000000003fffffff] (1024MB) [ 1.214407][ T0] Faking node 1 at [mem 0x0000000040000000-0x000000007ffdcfff] (1023MB) [ 1.236476][ T0] NODE_DATA(0) allocated [mem 0x3fffb000-0x3fffffff] [ 1.253276][ T0] NODE_DATA(1) allocated [mem 0x7ffd7000-0x7ffdbfff] [ 1.415376][ T0] Zone ranges: [ 1.428762][ T0] DMA [mem 0x0000000000001000-0x0000000000ffffff] [ 1.448879][ T0] DMA32 [mem 0x0000000001000000-0x000000007ffdcfff] [ 1.468671][ T0] Normal empty [ 1.476014][ T0] Device empty [ 1.487644][ T0] Movable zone start for each node [ 1.500168][ T0] Early memory node ranges [ 1.508555][ T0] node 0: [mem 0x0000000000001000-0x000000000009efff] [ 1.525153][ T0] node 0: [mem 0x0000000000100000-0x000000003fffffff] [ 1.538961][ T0] node 1: [mem 0x0000000040000000-0x000000007ffdcfff] [ 1.554631][ T0] Zeroed struct page in unavailable ranges: 133 pages [ 1.554661][ T0] Initmem setup node 0 [mem 0x0000000000001000-0x000000003fffffff] [ 1.590091][ T0] Initmem setup node 1 [mem 0x0000000040000000-0x000000007ffdcfff] [ 4.037074][ T0] kasan: KernelAddressSanitizer initialized [ 4.081366][ T0] ACPI: PM-Timer IO Port: 0x608 [ 4.100612][ T0] ACPI: LAPIC_NMI (acpi_id[0xff] dfl dfl lint[0x1]) [ 4.126049][ T0] IOAPIC[0]: apic_id 0, version 17, address 0xfec00000, GSI 0-23 [ 4.152618][ T0] ACPI: INT_SRC_OVR (bus 0 bus_irq 0 global_irq 2 dfl dfl) [ 4.173007][ T0] ACPI: INT_SRC_OVR (bus 0 bus_irq 5 global_irq 5 high level) [ 4.191692][ T0] ACPI: INT_SRC_OVR (bus 0 bus_irq 9 global_irq 9 high level) [ 4.211183][ T0] ACPI: INT_SRC_OVR (bus 0 bus_irq 10 global_irq 10 high level) [ 4.231831][ T0] ACPI: INT_SRC_OVR (bus 0 bus_irq 11 global_irq 11 high level) [ 4.254584][ T0] Using ACPI (MADT) for SMP configuration information [ 4.272724][ T0] ACPI: HPET id: 0x8086a201 base: 0xfed00000 [ 4.288604][ T0] TSC deadline timer available [ 4.300744][ T0] smpboot: Allowing 8 CPUs, 4 hotplug CPUs [ 4.319153][ T0] kvm-guest: KVM setup pv remote TLB flush [ 4.341240][ T0] PM: hibernation: Registered nosave memory: [mem 0x00000000-0x00000fff] [ 4.367126][ T0] PM: hibernation: Registered nosave memory: [mem 0x0009f000-0x0009ffff] [ 4.394849][ T0] PM: hibernation: Registered nosave memory: [mem 0x000a0000-0x000effff] [ 4.418092][ T0] PM: hibernation: Registered nosave memory: [mem 0x000f0000-0x000fffff] [ 4.436118][ T0] [mem 0xc0000000-0xfed1bfff] available for PCI devices [ 4.450692][ T0] Booting paravirtualized kernel on KVM [ 4.459538][ T0] clocksource: refined-jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604462750000 ns [ 4.538533][ T0] setup_percpu: NR_CPUS:64 nr_cpumask_bits:64 nr_cpu_ids:8 nr_node_ids:2 [ 4.579268][ T0] percpu: Embedded 65 pages/cpu s226696 r8192 d31352 u1048576 [ 4.595117][ T0] kvm-guest: stealtime: cpu 0, msr 2ce20a40 [ 4.605011][ T0] kvm-guest: PV spinlocks enabled [ 4.615155][ T0] PV qspinlock hash table entries: 256 (order: 0, 4096 bytes, linear) [ 4.632130][ T0] Built 2 zonelists, mobility grouping on. Total pages: 515942 [ 4.645250][ T0] Policy zone: DMA32 [ 4.652357][ 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 [ 4.868017][ T0] mem auto-init: stack:off, heap alloc:on, heap free:off [ 5.667489][ T0] Memory: 1503356K/2096620K available (116743K kernel code, 17679K rwdata, 21640K rodata, 2792K init, 23928K bss, 593008K reserved, 0K cma-reserved) [ 5.876227][ T0] Running RCU self tests [ 5.896609][ T0] rcu: Preemptible hierarchical RCU implementation. [ 5.920467][ T0] rcu: RCU lockdep checking is enabled. [ 5.938773][ T0] rcu: RCU restricting CPUs from NR_CPUS=64 to nr_cpu_ids=8. [ 5.965336][ T0] rcu: RCU callback double-/use-after-free debug enabled. [ 5.993251][ T0] rcu: RCU debug extended QS entry/exit. [ 6.019053][ T0] All grace periods are expedited (rcu_expedited). [ 6.041995][ T0] Trampoline variant of Tasks RCU enabled. [ 6.061374][ T0] rcu: RCU calculated value of scheduler-enlistment delay is 10 jiffies. [ 6.085173][ T0] rcu: Adjusting geometry for rcu_fanout_leaf=16, nr_cpu_ids=8 [ 6.128885][ T0] NR_IRQS: 4352, nr_irqs: 488, preallocated irqs: 16 [ 6.204304][ T0] random: get_random_bytes called from start_kernel+0x23b/0x46a with crng_init=0 [ 6.636418][ T0] Console: colour VGA+ 80x25 [ 6.713714][ T0] printk: console [ttyS0] enabled [ 6.713714][ T0] printk: console [ttyS0] enabled [ 6.757122][ T0] printk: bootconsole [earlyser0] disabled [ 6.757122][ T0] printk: bootconsole [earlyser0] disabled [ 6.808614][ T0] Lock dependency validator: Copyright (c) 2006 Red Hat, Inc., Ingo Molnar [ 6.833223][ T0] ... MAX_LOCKDEP_SUBCLASSES: 8 [ 6.850325][ T0] ... MAX_LOCK_DEPTH: 48 [ 6.873992][ T0] ... MAX_LOCKDEP_KEYS: 8192 [ 6.897314][ T0] ... CLASSHASH_SIZE: 4096 [ 6.920848][ T0] ... MAX_LOCKDEP_ENTRIES: 32768 [ 6.943234][ T0] ... MAX_LOCKDEP_CHAINS: 65536 [ 6.966549][ T0] ... CHAINHASH_SIZE: 32768 [ 6.996547][ T0] memory used by lock dependency info: 6301 kB [ 7.029526][ T0] memory used for stack traces: 4224 kB [ 7.050624][ T0] per task-struct memory footprint: 1920 bytes [ 7.086857][ T0] mempolicy: Enabling automatic NUMA balancing. Configure with numa_balancing= or the kernel.numa_balancing sysctl [ 7.129363][ T0] ACPI: Core revision 20200717 [ 7.168249][ T0] clocksource: hpet: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604467 ns [ 7.214323][ T0] APIC: Switch to symmetric I/O mode setup [ 7.263858][ T0] x2apic enabled [ 7.287749][ T0] Switched APIC routing to physical x2apic. [ 7.299467][ T0] kvm-guest: setup PV IPIs [ 7.354577][ T0] ..TIMER: vector=0x30 apic1=0 pin1=2 apic2=-1 pin2=-1 [ 7.375873][ T0] clocksource: tsc-early: mask: 0xffffffffffffffff max_cycles: 0x1cd4c92266a, max_idle_ns: 440795223404 ns [ 7.406587][ T0] Calibrating delay loop (skipped) preset value.. 4000.32 BogoMIPS (lpj=20001640) [ 7.417419][ T0] pid_max: default: 32768 minimum: 301 [ 7.437335][ T0] LSM: Security Framework initializing [ 7.446384][ T0] LSM: security= is ignored because it is superseded by lsm= [ 7.456733][ T0] Yama: becoming mindful. [ 7.468222][ T0] SELinux: Initializing. [ 7.481282][ T0] TOMOYO Linux initialized [ 7.487106][ T0] LSM support for eBPF active [ 7.508784][ T0] Dentry cache hash table entries: 262144 (order: 9, 2097152 bytes, vmalloc) [ 7.523709][ T0] Inode-cache hash table entries: 131072 (order: 8, 1048576 bytes, vmalloc) [ 7.526639][ T0] Mount-cache hash table entries: 4096 (order: 3, 32768 bytes, vmalloc) [ 7.536421][ T0] Mountpoint-cache hash table entries: 4096 (order: 3, 32768 bytes, vmalloc) [ 7.652405][ T0] x86/cpu: User Mode Instruction Prevention (UMIP) activated [ 7.683918][ T0] Last level iTLB entries: 4KB 0, 2MB 0, 4MB 0 [ 7.686007][ T0] Last level dTLB entries: 4KB 0, 2MB 0, 4MB 0, 1GB 0 [ 7.698127][ T0] Spectre V1 : Mitigation: usercopy/swapgs barriers and __user pointer sanitization [ 7.706590][ T0] Spectre V2 : Spectre mitigation: kernel not compiled with retpoline; no mitigation available! [ 7.707717][ T0] Speculative Store Bypass: Mitigation: Speculative Store Bypass disabled via prctl [ 7.739581][ T0] TAA: Mitigation: Clear CPU buffers [ 7.746008][ T0] MDS: Mitigation: Clear CPU buffers [ 7.849542][ T0] Freeing SMP alternatives memory: 104K [ 8.061272][ T1] smpboot: CPU0: Intel(R) Xeon(R) CPU @ 2.00GHz (family: 0x6, model: 0x55, stepping: 0x3) [ 8.115013][ T1] Performance Events: unsupported p6 CPU model 85 no PMU driver, software events only. [ 8.122025][ T1] rcu: Hierarchical SRCU implementation. [ 8.138979][ T1] dyndbg: Ignore empty _ddebug table in a CONFIG_DYNAMIC_DEBUG_CORE build [ 8.154055][ T1] NMI watchdog: Perf NMI watchdog permanently disabled [ 8.171429][ T1] smp: Bringing up secondary CPUs ... [ 8.201007][ T1] x86: Booting SMP configuration: [ 8.206619][ T1] .... node #0, CPUs: #1 [ 1.121583][ T0] kvm-clock: cpu 1, msr bed1041, secondary cpu clock [ 8.297023][ T15] kvm-guest: stealtime: cpu 1, msr 2cf20a40 [ 8.337330][ 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. [ 8.346737][ 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. [ 8.389611][ T1] #2 [ 1.121583][ T0] kvm-clock: cpu 2, msr bed1081, secondary cpu clock [ 8.483959][ T20] kvm-guest: stealtime: cpu 2, msr 2d020a40 [ 8.523435][ T1] #3 [ 1.121583][ T0] kvm-clock: cpu 3, msr bed10c1, secondary cpu clock [ 8.583660][ T25] kvm-guest: stealtime: cpu 3, msr 2d120a40 [ 8.596636][ T1] smp: Brought up 2 nodes, 4 CPUs [ 8.606202][ T1] smpboot: Max logical packages: 2 [ 8.616085][ T1] smpboot: Total of 4 processors activated (16001.31 BogoMIPS) [ 8.690529][ T1] devtmpfs: initialized [ 8.725987][ T1] x86/mm: Memory block size: 128MB [ 8.861681][ T1] clocksource: jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604462750000 ns [ 8.921782][ T33] kworker/u17:0 (33) used greatest stack depth: 27544 bytes left [ 8.922645][ T1] futex hash table entries: 2048 (order: 6, 262144 bytes, vmalloc) [ 9.008895][ T1] xor: automatically using best checksumming function avx [ 9.065951][ T1] PM: RTC time: 18:06:47, date: 2020-08-22 [ 9.136758][ T1] NET: Registered protocol family 16 [ 9.189982][ T1] audit: initializing netlink subsys (disabled) [ 9.238053][ T41] audit: type=2000 audit(1598119606.360:1): state=initialized audit_enabled=0 res=1 [ 9.265816][ T51] kworker/u17:2 (51) used greatest stack depth: 26568 bytes left [ 9.265987][ T1] thermal_sys: Registered thermal governor 'step_wise' [ 9.265987][ T1] thermal_sys: Registered thermal governor 'user_space' [ 9.286506][ T1] cpuidle: using governor menu [ 9.393050][ T1] NET: Registered protocol family 42 [ 9.456727][ T1] ACPI: bus type PCI registered [ 9.498738][ T1] dca service started, version 1.12.1 [ 9.541670][ T1] PCI: MMCONFIG for domain 0000 [bus 00-ff] at [mem 0xb0000000-0xbfffffff] (base 0xb0000000) [ 9.577214][ T1] PCI: MMCONFIG at [mem 0xb0000000-0xbfffffff] reserved in E820 [ 9.857828][ T1] PCI: Using configuration type 1 for base access [ 10.429868][ T1] HugeTLB registered 2.00 MiB page size, pre-allocated 0 pages [ 10.608895][ T1] cryptd: max_cpu_qlen set to 1000 [ 10.897037][ T1] raid6: avx512x4 gen() 12488 MB/s [ 11.091214][ T1] raid6: avx512x4 xor() 6277 MB/s [ 11.292926][ T1] raid6: avx512x2 gen() 9946 MB/s [ 11.511670][ T1] raid6: avx512x2 xor() 4526 MB/s [ 11.720223][ T1] raid6: avx512x1 gen() 6310 MB/s [ 11.917313][ T1] raid6: avx512x1 xor() 2476 MB/s [ 12.112588][ T1] raid6: avx2x4 gen() 8399 MB/s [ 12.300602][ T1] raid6: avx2x4 xor() 4283 MB/s [ 12.496010][ T1] raid6: avx2x2 gen() 5679 MB/s [ 12.686463][ T1] raid6: avx2x2 xor() 2411 MB/s [ 12.866495][ T1] raid6: avx2x1 gen() 3680 MB/s [ 13.046140][ T1] raid6: avx2x1 xor() 1456 MB/s [ 13.226644][ T1] raid6: sse2x4 gen() 4655 MB/s [ 13.406131][ T1] raid6: sse2x4 xor() 2578 MB/s [ 13.586067][ T1] raid6: sse2x2 gen() 2955 MB/s [ 13.756178][ T1] raid6: sse2x2 xor() 1492 MB/s [ 13.936052][ T1] raid6: sse2x1 gen() 1816 MB/s [ 14.116147][ T1] raid6: sse2x1 xor() 746 MB/s [ 14.126063][ T1] raid6: using algorithm avx512x4 gen() 12488 MB/s [ 14.136036][ T1] raid6: .... xor() 6277 MB/s, rmw enabled [ 14.146154][ T1] raid6: using avx512x2 recovery algorithm [ 14.174040][ T1] ACPI: Added _OSI(Module Device) [ 14.176357][ T1] ACPI: Added _OSI(Processor Device) [ 14.186113][ T1] ACPI: Added _OSI(3.0 _SCP Extensions) [ 14.196104][ T1] ACPI: Added _OSI(Processor Aggregator Device) [ 14.206283][ T1] ACPI: Added _OSI(Linux-Dell-Video) [ 14.216136][ T1] ACPI: Added _OSI(Linux-Lenovo-NV-HDMI-Audio) [ 14.226207][ T1] ACPI: Added _OSI(Linux-HPI-Hybrid-Graphics) [ 14.341305][ T1] ACPI: 2 ACPI AML tables successfully acquired and loaded [ 14.479123][ T1] ACPI: Interpreter enabled [ 14.494789][ T1] ACPI: (supports S0 S3 S4 S5) [ 14.496994][ T1] ACPI: Using IOAPIC for interrupt routing [ 14.512805][ T1] PCI: Using host bridge windows from ACPI; if necessary, use "pci=nocrs" and report a bug [ 14.525071][ T1] ACPI: Enabled 3 GPEs in block 00 to 3F [ 14.744262][ T1] ACPI: PCI Root Bridge [PCI0] (domain 0000 [bus 00-ff]) [ 14.749035][ T1] acpi PNP0A08:00: _OSC: OS supports [ExtendedConfig ASPM ClockPM Segments MSI HPX-Type3] [ 14.770047][ T1] acpi PNP0A08:00: _OSC: platform does not support [LTR] [ 14.781479][ T1] acpi PNP0A08:00: _OSC: OS now controls [PCIeHotplug PME AER PCIeCapability] [ 14.807960][ T1] PCI host bridge to bus 0000:00 [ 14.816273][ T1] pci_bus 0000:00: Unknown NUMA node; performance will be reduced [ 14.827433][ T1] pci_bus 0000:00: root bus resource [io 0x0000-0x0cf7 window] [ 14.836190][ T1] pci_bus 0000:00: root bus resource [io 0x0d00-0xffff window] [ 14.846193][ T1] pci_bus 0000:00: root bus resource [mem 0x000a0000-0x000bffff window] [ 14.856272][ T1] pci_bus 0000:00: root bus resource [mem 0x80000000-0xafffffff window] [ 14.866413][ T1] pci_bus 0000:00: root bus resource [mem 0xc0000000-0xfebfffff window] [ 14.876408][ T1] pci_bus 0000:00: root bus resource [mem 0x580000000-0xd7fffffff window] [ 14.886584][ T1] pci_bus 0000:00: root bus resource [bus 00-ff] [ 14.908540][ T1] pci 0000:00:00.0: [8086:29c0] type 00 class 0x060000 [ 14.999588][ T1] pci 0000:00:01.0: [1af4:1050] type 00 class 0x030000 [ 15.055987][ T1] pci 0000:00:01.0: reg 0x10: [mem 0xfe000000-0xfe7fffff pref] [ 15.135987][ T1] pci 0000:00:01.0: reg 0x18: [mem 0xfe800000-0xfe803fff 64bit pref] [ 15.175987][ T1] pci 0000:00:01.0: reg 0x20: [mem 0xfebf4000-0xfebf4fff] [ 15.250753][ T1] pci 0000:00:01.0: reg 0x30: [mem 0xfebe0000-0xfebeffff pref] [ 15.505829][ T1] pci 0000:00:02.0: [1af4:1000] type 00 class 0x020000 [ 15.517524][ T1] pci 0000:00:02.0: reg 0x10: [io 0xc680-0xc69f] [ 15.534604][ T1] pci 0000:00:02.0: reg 0x14: [mem 0xfebf5000-0xfebf5fff] [ 15.556549][ T1] pci 0000:00:02.0: reg 0x20: [mem 0xfe804000-0xfe807fff 64bit pref] [ 15.571919][ T1] pci 0000:00:02.0: reg 0x30: [mem 0xfeb40000-0xfeb7ffff pref] [ 15.653663][ T1] pci 0000:00:03.0: [8086:100e] type 00 class 0x020000 [ 15.672848][ T1] pci 0000:00:03.0: reg 0x10: [mem 0xfebc0000-0xfebdffff] [ 15.682606][ T1] pci 0000:00:03.0: reg 0x14: [io 0xc600-0xc63f] [ 15.718295][ T1] pci 0000:00:03.0: reg 0x30: [mem 0xfeb80000-0xfebbffff pref] [ 15.779003][ T1] pci 0000:00:04.0: [1274:5000] type 00 class 0x040100 [ 15.811391][ T1] pci 0000:00:04.0: reg 0x10: [io 0xc400-0xc4ff] [ 15.890961][ T1] pci 0000:00:05.0: [8086:2415] type 00 class 0x040100 [ 15.910377][ T1] pci 0000:00:05.0: reg 0x10: [io 0xc000-0xc3ff] [ 15.924913][ T1] pci 0000:00:05.0: reg 0x14: [io 0xc500-0xc5ff] [ 16.007860][ T1] pci 0000:00:06.0: [8086:2668] type 00 class 0x040300 [ 16.029880][ T1] pci 0000:00:06.0: reg 0x10: [mem 0xfebf0000-0xfebf3fff] [ 16.165987][ T1] pci 0000:00:07.0: [1af4:1009] type 00 class 0x000200 [ 16.193624][ T1] pci 0000:00:07.0: reg 0x10: [io 0xc6a0-0xc6bf] [ 16.204836][ T1] pci 0000:00:07.0: reg 0x14: [mem 0xfebf6000-0xfebf6fff] [ 16.238483][ T1] pci 0000:00:07.0: reg 0x20: [mem 0xfe808000-0xfe80bfff 64bit pref] [ 16.337878][ T1] pci 0000:00:1d.0: [8086:2934] type 00 class 0x0c0300 [ 16.370378][ T1] pci 0000:00:1d.0: reg 0x20: [io 0xc6c0-0xc6df] [ 16.399015][ T1] pci 0000:00:1d.1: [8086:2935] type 00 class 0x0c0300 [ 16.439962][ T1] pci 0000:00:1d.1: reg 0x20: [io 0xc6e0-0xc6ff] [ 16.467676][ T1] pci 0000:00:1d.2: [8086:2936] type 00 class 0x0c0300 [ 16.499865][ T1] pci 0000:00:1d.2: reg 0x20: [io 0xc700-0xc71f] [ 16.521240][ T1] pci 0000:00:1d.7: [8086:293a] type 00 class 0x0c0320 [ 16.531257][ T1] pci 0000:00:1d.7: reg 0x10: [mem 0xfebf7000-0xfebf7fff] [ 16.585636][ T1] pci 0000:00:1f.0: [8086:2918] type 00 class 0x060100 [ 16.632367][ T1] pci 0000:00:1f.0: quirk: [io 0x0600-0x067f] claimed by ICH6 ACPI/GPIO/TCO [ 16.644922][ T1] pci 0000:00:1f.0: quirk_ich7_lpc+0x0/0x190 took 19531 usecs [ 16.668559][ T1] pci 0000:00:1f.2: [8086:2922] type 00 class 0x010601 [ 16.695852][ T1] pci 0000:00:1f.2: reg 0x20: [io 0xc720-0xc73f] [ 16.698770][ T1] pci 0000:00:1f.2: reg 0x24: [mem 0xfebf8000-0xfebf8fff] [ 16.722374][ T1] pci 0000:00:1f.3: [8086:2930] type 00 class 0x0c0500 [ 16.739770][ T1] pci 0000:00:1f.3: reg 0x20: [io 0x0700-0x073f] [ 16.850074][ T1] ACPI: PCI Interrupt Link [LNKA] (IRQs 5 *10 11) [ 16.871426][ T1] ACPI: PCI Interrupt Link [LNKB] (IRQs 5 *10 11) [ 16.888751][ T1] ACPI: PCI Interrupt Link [LNKC] (IRQs 5 10 *11) [ 16.908821][ T1] ACPI: PCI Interrupt Link [LNKD] (IRQs 5 10 *11) [ 16.928923][ T1] ACPI: PCI Interrupt Link [LNKE] (IRQs 5 *10 11) [ 16.948912][ T1] ACPI: PCI Interrupt Link [LNKF] (IRQs 5 *10 11) [ 16.969494][ T1] ACPI: PCI Interrupt Link [LNKG] (IRQs 5 10 *11) [ 17.003327][ T1] ACPI: PCI Interrupt Link [LNKH] (IRQs 5 10 *11) [ 17.017207][ T1] ACPI: PCI Interrupt Link [GSIA] (IRQs *16) [ 17.046473][ T1] ACPI: PCI Interrupt Link [GSIB] (IRQs *17) [ 17.066524][ T1] ACPI: PCI Interrupt Link [GSIC] (IRQs *18) [ 17.086449][ T1] ACPI: PCI Interrupt Link [GSID] (IRQs *19) [ 17.106740][ T1] ACPI: PCI Interrupt Link [GSIE] (IRQs *20) [ 17.126893][ T1] ACPI: PCI Interrupt Link [GSIF] (IRQs *21) [ 17.146744][ T1] ACPI: PCI Interrupt Link [GSIG] (IRQs *22) [ 17.168184][ T1] ACPI: PCI Interrupt Link [GSIH] (IRQs *23) [ 17.299067][ T1] iommu: Default domain type: Translated [ 17.349078][ T1] pci 0000:00:01.0: vgaarb: setting as boot VGA device [ 17.355987][ T1] pci 0000:00:01.0: vgaarb: VGA device added: decodes=io+mem,owns=io+mem,locks=none [ 17.406221][ T1] pci 0000:00:01.0: vgaarb: bridge control possible [ 17.436245][ T1] vgaarb: loaded [ 17.504036][ T1] SCSI subsystem initialized [ 17.549081][ T1] ACPI: bus type USB registered [ 17.569834][ T1] usbcore: registered new interface driver usbfs [ 17.597461][ T1] usbcore: registered new interface driver hub [ 17.617858][ T1] usbcore: registered new device driver usb [ 17.631138][ T1] mc: Linux media interface: v0.10 [ 17.646420][ T1] videodev: Linux video capture interface: v2.00 [ 17.676385][ T1] pps_core: LinuxPPS API ver. 1 registered [ 17.686076][ T1] pps_core: Software ver. 5.3.6 - Copyright 2005-2007 Rodolfo Giometti [ 17.716329][ T1] PTP clock support registered [ 17.730066][ T1] EDAC MC: Ver: 3.0.0 [ 17.770371][ T1] Advanced Linux Sound Architecture Driver Initialized. [ 17.832500][ T1] Bluetooth: Core ver 2.22 [ 17.848402][ T1] NET: Registered protocol family 31 [ 17.886304][ T1] Bluetooth: HCI device and connection manager initialized [ 17.918468][ T1] Bluetooth: HCI socket layer initialized [ 17.956424][ T1] Bluetooth: L2CAP socket layer initialized [ 17.986629][ T1] Bluetooth: SCO socket layer initialized [ 17.997048][ T1] NET: Registered protocol family 8 [ 18.016177][ T1] NET: Registered protocol family 20 [ 18.037886][ T1] NetLabel: Initializing [ 18.046140][ T1] NetLabel: domain hash size = 128 [ 18.066339][ T1] NetLabel: protocols = UNLABELED CIPSOv4 CALIPSO [ 18.090759][ T1] NetLabel: unlabeled traffic allowed by default [ 18.113547][ T1] nfc: nfc_init: NFC Core ver 0.1 [ 18.128120][ T1] NET: Registered protocol family 39 [ 18.147756][ T1] PCI: Using ACPI for IRQ routing [ 20.557248][ T1] hpet0: at MMIO 0xfed00000, IRQs 2, 8, 0 [ 20.566120][ T1] hpet0: 3 comparators, 64-bit 100.000000 MHz counter [ 20.584516][ T1] clocksource: Switched to clocksource kvm-clock [ 24.945061][ T1] VFS: Disk quotas dquot_6.6.0 [ 24.971487][ T1] VFS: Dquot-cache hash table entries: 512 (order 0, 4096 bytes) [ 25.007458][ T1] FS-Cache: Loaded [ 25.033340][ T1] CacheFiles: Loaded [ 25.051985][ T1] TOMOYO: 2.6.0 [ 25.063447][ T1] Mandatory Access Control activated. [ 25.087573][ T1] pnp: PnP ACPI init [ 25.148202][ T1] pnp: PnP ACPI: found 6 devices [ 25.306275][ T1] clocksource: acpi_pm: mask: 0xffffff max_cycles: 0xffffff, max_idle_ns: 2085701024 ns [ 25.341409][ T1] NET: Registered protocol family 2 [ 25.387394][ T1] tcp_listen_portaddr_hash hash table entries: 1024 (order: 4, 81920 bytes, vmalloc) [ 25.433634][ T1] TCP established hash table entries: 16384 (order: 5, 131072 bytes, vmalloc) [ 25.490163][ T1] TCP bind hash table entries: 16384 (order: 8, 1179648 bytes, vmalloc) [ 25.515427][ T1] TCP: Hash tables configured (established 16384 bind 16384) [ 25.550770][ T1] MPTCP token hash table entries: 2048 (order: 5, 180224 bytes, vmalloc) [ 25.582131][ T1] UDP hash table entries: 1024 (order: 5, 163840 bytes, vmalloc) [ 25.600926][ T1] UDP-Lite hash table entries: 1024 (order: 5, 163840 bytes, vmalloc) [ 25.627699][ T1] NET: Registered protocol family 1 [ 25.651586][ T1] RPC: Registered named UNIX socket transport module. [ 25.670163][ T1] RPC: Registered udp transport module. [ 25.687305][ T1] RPC: Registered tcp transport module. [ 25.703568][ T1] RPC: Registered tcp NFSv4.1 backchannel transport module. [ 25.747240][ T1] NET: Registered protocol family 44 [ 25.785899][ T1] pci_bus 0000:00: resource 4 [io 0x0000-0x0cf7 window] [ 25.825929][ T1] pci_bus 0000:00: resource 5 [io 0x0d00-0xffff window] [ 25.857656][ T1] pci_bus 0000:00: resource 6 [mem 0x000a0000-0x000bffff window] [ 25.897062][ T1] pci_bus 0000:00: resource 7 [mem 0x80000000-0xafffffff window] [ 25.926638][ T1] pci_bus 0000:00: resource 8 [mem 0xc0000000-0xfebfffff window] [ 25.955385][ T1] pci_bus 0000:00: resource 9 [mem 0x580000000-0xd7fffffff window] [ 25.989940][ T1] pci 0000:00:01.0: Video device with shadowed ROM at [mem 0x000c0000-0x000dffff] [ 26.028539][ T1] pci 0000:00:01.0: pci_fixup_video+0x0/0x270 took 37666 usecs [ 26.100918][ T1] PCI Interrupt Link [GSIA] enabled at IRQ 16 [ 26.184178][ T1] pci 0000:00:1d.0: quirk_usb_early_handoff+0x0/0x105b took 111456 usecs [ 26.247833][ T1] PCI Interrupt Link [GSIB] enabled at IRQ 17 [ 26.302693][ T1] pci 0000:00:1d.1: quirk_usb_early_handoff+0x0/0x105b took 70434 usecs [ 26.375961][ T1] PCI Interrupt Link [GSIC] enabled at IRQ 18 [ 26.432747][ T1] pci 0000:00:1d.2: quirk_usb_early_handoff+0x0/0x105b took 70895 usecs [ 26.511526][ T1] PCI Interrupt Link [GSID] enabled at IRQ 19 [ 26.590839][ T1] pci 0000:00:1d.7: quirk_usb_early_handoff+0x0/0x105b took 95146 usecs [ 26.669979][ T1] PCI: CLS 0 bytes, default 64 [ 26.809089][ T1] PCI-DMA: Using software bounce buffering for IO (SWIOTLB) [ 26.870105][ T1] software IO TLB: mapped [mem 0x7ac00000-0x7ec00000] (64MB) [ 26.958119][ T1] kvm: no hardware support [ 26.987656][ T1] has_svm: not amd or hygon [ 27.022494][ T1] kvm: no hardware support [ 27.058612][ T1] clocksource: tsc: mask: 0xffffffffffffffff max_cycles: 0x1cd4c92266a, max_idle_ns: 440795223404 ns [ 27.149249][ T1] clocksource: Switched to clocksource tsc [ 27.204941][ T1] mce: Machine check injector initialized [ 27.285833][ T1] check: Scanning for low memory corruption every 60 seconds [ 28.127065][ T1] Initialise system trusted keyrings [ 28.184463][ T1] workingset: timestamp_bits=40 max_order=19 bucket_order=0 [ 28.224810][ T1] zbud: loaded [ 28.268404][ T1] DLM installed [ 28.287609][ T1] squashfs: version 4.0 (2009/01/31) Phillip Lougher [ 28.333542][ T1] FS-Cache: Netfs 'nfs' registered for caching [ 28.359913][ T1] NFS: Registering the id_resolver key type [ 28.378857][ T1] Key type id_resolver registered [ 28.394503][ T1] Key type id_legacy registered [ 28.411043][ T1] nfs4filelayout_init: NFSv4 File Layout Driver Registering... [ 28.436551][ T1] Installing knfsd (copyright (C) 1996 okir@monad.swb.de). [ 28.488815][ T1] FS-Cache: Netfs 'cifs' registered for caching [ 28.515821][ T1] Key type cifs.spnego registered [ 28.535806][ T1] Key type cifs.idmap registered [ 28.560553][ T1] ntfs: driver 2.1.32 [Flags: R/W]. [ 28.582269][ T1] fuse: init (API version 7.31) [ 28.616933][ T1] JFS: nTxBlock = 8192, nTxLock = 65536 [ 28.802447][ T1] SGI XFS with ACLs, security attributes, realtime, quota, no debug enabled [ 28.851223][ T1] 9p: Installing v9fs 9p2000 file system support [ 28.872924][ T1] FS-Cache: Netfs '9p' registered for caching [ 28.899435][ T1] ocfs2: Registered cluster interface o2cb [ 28.925293][ T1] ocfs2: Registered cluster interface user [ 28.948913][ T1] OCFS2 User DLM kernel interface loaded [ 29.037399][ T1] gfs2: GFS2 installed [ 29.105587][ T1] FS-Cache: Netfs 'ceph' registered for caching [ 29.141759][ T1] ceph: loaded (mds proto 32) [ 29.257753][ T1] NET: Registered protocol family 38 [ 29.282978][ T1] async_tx: api initialized (async) [ 29.301887][ T1] Key type asymmetric registered [ 29.321002][ T1] Asymmetric key parser 'x509' registered [ 29.346755][ T1] Asymmetric key parser 'pkcs8' registered [ 29.391579][ T1] Key type pkcs7_test registered [ 29.430909][ T1] Asymmetric key parser 'tpm_parser' registered [ 29.472423][ T1] Block layer SCSI generic (bsg) driver version 0.4 loaded (major 243) [ 29.544416][ T1] io scheduler mq-deadline registered [ 29.586557][ T1] io scheduler kyber registered [ 29.615958][ T1] io scheduler bfq registered [ 29.713958][ T1] hgafb: HGA card not detected. [ 29.747758][ T1] hgafb: probe of hgafb.0 failed with error -22 [ 29.796901][ T1] usbcore: registered new interface driver udlfb [ 29.891507][ T1] uvesafb: failed to execute /sbin/v86d [ 29.929230][ T1] uvesafb: make sure that the v86d helper is installed and executable [ 29.985603][ T1] uvesafb: Getting VBE info block failed (eax=0x4f00, err=-2) [ 30.028248][ T1] uvesafb: vbe_init() failed with -22 [ 30.073384][ T1] uvesafb: probe of uvesafb.0 failed with error -22 [ 30.130136][ T1] vga16fb: mapped to 0x00000000667a3a85 [ 57.383909][ T1] Console: switching to colour frame buffer device 80x30 [ 92.201476][ C3] hrtimer: interrupt took 124125859 ns [ 97.383879][ T1] fb0: VGA16 VGA frame buffer device [ 97.625966][ T1] input: Power Button as /devices/LNXSYSTM:00/LNXPWRBN:00/input/input0 [ 97.821632][ T1] ACPI: Power Button [PWRF] [ 98.585261][ T221] ================================================================== [ 98.636557][ T221] BUG: KASAN: global-out-of-bounds in internal_create_group+0x9d8/0xb20 [ 98.686777][ T221] Read of size 8 at addr ffffffff8a2e8730 by task kworker/u17:5/221 [ 98.736389][ T221] [ 98.746881][ T221] CPU: 2 PID: 221 Comm: kworker/u17:5 Not tainted 5.9.0-rc1-syzkaller #0 [ 98.806912][ T221] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS rel-1.12.0-59-gc9ba5276e321-prebuilt.qemu.org 04/01/2014 [ 98.876273][ T221] Workqueue: events_unbound async_run_entry_fn [ 98.926529][ T221] Call Trace: [ 98.947155][ T221] dump_stack+0x18f/0x20d [ 98.976542][ T221] ? internal_create_group+0x9d8/0xb20 [ 99.016572][ T221] ? internal_create_group+0x9d8/0xb20 [ 99.056505][ T221] print_address_description.constprop.0.cold+0x5/0x497 [ 99.107088][ T221] ? vprintk_func+0x97/0x1a6 [ 99.136731][ T221] ? internal_create_group+0x9d8/0xb20 [ 99.166855][ T221] ? internal_create_group+0x9d8/0xb20 [ 99.207214][ T221] kasan_report.cold+0x1f/0x37 [ 99.246650][ T221] ? internal_create_group+0x9d8/0xb20 [ 99.276445][ T221] ? state_show+0xf0/0xf0 [ 99.308050][ T221] internal_create_group+0x9d8/0xb20 [ 99.336731][ T221] ? sysfs_remove_group+0x170/0x170 [ 99.356567][ T221] internal_create_groups.part.0+0x90/0x140 [ 99.378161][ T221] sysfs_create_groups+0x25/0x50 [ 99.386445][ T221] device_add+0x7fd/0x1c40 [ 99.406748][ T221] ? devlink_add_symlinks+0x450/0x450 [ 99.416235][ T221] ? lock_release+0x8e0/0x8e0 [ 99.436287][ T221] ? asm_sysvec_apic_timer_interrupt+0x12/0x20 [ 99.446574][ T221] ? nd_synchronize+0x20/0x20 [ 99.466923][ T221] nd_async_device_register+0x12/0x80 [ 99.476231][ T221] async_run_entry_fn+0x121/0x530 [ 99.496294][ T221] process_one_work+0x94c/0x1670 [ 99.506444][ T221] ? lock_release+0x8e0/0x8e0 [ 99.517093][ T221] ? pwq_dec_nr_in_flight+0x2d0/0x2d0 [ 99.536268][ T221] ? rwlock_bug.part.0+0x90/0x90 [ 99.546452][ T221] worker_thread+0x64c/0x1120 [ 99.566639][ T221] ? process_one_work+0x1670/0x1670 [ 99.586748][ T221] kthread+0x3b5/0x4a0 [ 99.596248][ T221] ? __kthread_bind_mask+0xc0/0xc0 [ 99.616238][ T221] ? __kthread_bind_mask+0xc0/0xc0 [ 99.626723][ T221] ret_from_fork+0x1f/0x30 [ 99.646452][ T221] [ 99.656383][ T221] The buggy address belongs to the variable: [ 99.676289][ T221] nvdimm_firmware_attributes+0x10/0x40 [ 99.696452][ T221] [ 99.706500][ T221] Memory state around the buggy address: [ 99.716420][ T221] ffffffff8a2e8600: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 99.736241][ T221] ffffffff8a2e8680: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 99.756257][ T221] >ffffffff8a2e8700: f9 f9 f9 f9 00 00 f9 f9 f9 f9 f9 f9 00 00 00 00 [ 99.776271][ T221] ^ [ 99.796330][ T221] ffffffff8a2e8780: 00 00 00 f9 f9 f9 f9 f9 00 00 00 00 00 00 00 f9 [ 99.816322][ T221] ffffffff8a2e8800: f9 f9 f9 f9 00 00 00 00 00 00 00 f9 f9 f9 f9 f9 [ 99.846842][ T221] ================================================================== [ 99.876186][ T221] Disabling lock debugging due to kernel taint [ 99.897445][ T221] Kernel panic - not syncing: panic_on_warn set ... [ 99.907426][ T221] CPU: 0 PID: 221 Comm: kworker/u17:5 Tainted: G B 5.9.0-rc1-syzkaller #0 [ 99.907426][ T221] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS rel-1.12.0-59-gc9ba5276e321-prebuilt.qemu.org 04/01/2014 [ 99.907426][ T221] Workqueue: events_unbound async_run_entry_fn [ 99.907426][ T221] Call Trace: [ 99.907426][ T221] dump_stack+0x18f/0x20d [ 99.907426][ T221] ? internal_create_group+0x9c0/0xb20 [ 99.907426][ T221] panic+0x2e3/0x75c [ 99.907426][ T221] ? __warn_printk+0xf3/0xf3 [ 99.907426][ T221] ? preempt_schedule_common+0x59/0xc0 [ 99.907426][ T221] ? internal_create_group+0x9d8/0xb20 [ 99.907426][ T221] ? preempt_schedule_thunk+0x16/0x18 [ 99.907426][ T221] ? trace_hardirqs_on+0x55/0x220 [ 99.907426][ T221] ? internal_create_group+0x9d8/0xb20 [ 99.907426][ T221] ? internal_create_group+0x9d8/0xb20 [ 99.907426][ T221] end_report+0x4d/0x53 [ 99.907426][ T221] kasan_report.cold+0xd/0x37 [ 99.907426][ T221] ? internal_create_group+0x9d8/0xb20 [ 99.907426][ T221] ? state_show+0xf0/0xf0 [ 99.907426][ T221] internal_create_group+0x9d8/0xb20 [ 99.907426][ T221] ? sysfs_remove_group+0x170/0x170 [ 99.907426][ T221] internal_create_groups.part.0+0x90/0x140 [ 99.907426][ T221] sysfs_create_groups+0x25/0x50 [ 99.907426][ T221] device_add+0x7fd/0x1c40 [ 99.907426][ T221] ? devlink_add_symlinks+0x450/0x450 [ 99.907426][ T221] ? lock_release+0x8e0/0x8e0 [ 99.907426][ T221] ? asm_sysvec_apic_timer_interrupt+0x12/0x20 [ 99.907426][ T221] ? nd_synchronize+0x20/0x20 [ 99.907426][ T221] nd_async_device_register+0x12/0x80 [ 99.907426][ T221] async_run_entry_fn+0x121/0x530 [ 99.907426][ T221] process_one_work+0x94c/0x1670 [ 99.907426][ T221] ? lock_release+0x8e0/0x8e0 [ 99.907426][ T221] ? pwq_dec_nr_in_flight+0x2d0/0x2d0 [ 99.907426][ T221] ? rwlock_bug.part.0+0x90/0x90 [ 99.907426][ T221] worker_thread+0x64c/0x1120 [ 99.907426][ T221] ? process_one_work+0x1670/0x1670 [ 99.907426][ T221] kthread+0x3b5/0x4a0 [ 99.907426][ T221] ? __kthread_bind_mask+0xc0/0xc0 [ 99.907426][ T221] ? __kthread_bind_mask+0xc0/0xc0 [ 99.907426][ T221] ret_from_fork+0x1f/0x30 [ 99.907426][ T221] Kernel Offset: disabled [ 99.907426][ T221] Rebooting in 86400 seconds..