[ 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 [ 0.000014][ T0] kvm-clock: cpu 0, msr bed1001, primary cpu clock [ 0.000015][ T0] kvm-clock: using sched offset of 6612603980 cycles [ 0.008597][ T0] clocksource: kvm-clock: mask: 0xffffffffffffffff max_cycles: 0x1cd42e4dffb, max_idle_ns: 881590591483 ns [ 0.032029][ T0] tsc: Detected 2000.164 MHz processor [ 0.048846][ T0] last_pfn = 0x7ffdd max_arch_pfn = 0x400000000 [ 0.059231][ T0] x86/PAT: Configuration [0-7]: WB WC UC- UC WB WP UC- WT [ 0.082449][ T0] found SMP MP-table at [mem 0x000f5a40-0x000f5a4f] [ 0.092481][ T0] check: Scanning 1 areas for low memory corruption [ 0.105045][ T0] ACPI: Early table checksum verification disabled [ 0.114450][ T0] ACPI: RSDP 0x00000000000F5870 000014 (v00 BOCHS ) [ 0.123118][ T0] ACPI: RSDT 0x000000007FFE1F9D 000040 (v01 BOCHS BXPCRSDT 00000001 BXPC 00000001) [ 0.135237][ T0] ACPI: FACP 0x000000007FFE1860 0000F4 (v03 BOCHS BXPCFACP 00000001 BXPC 00000001) [ 0.148149][ T0] ACPI: DSDT 0x000000007FFDF040 002820 (v01 BOCHS BXPCDSDT 00000001 BXPC 00000001) [ 0.160157][ T0] ACPI: FACS 0x000000007FFDF000 000040 [ 0.166718][ T0] ACPI: APIC 0x000000007FFE1954 0000B0 (v01 BOCHS BXPCAPIC 00000001 BXPC 00000001) [ 0.178668][ T0] ACPI: HPET 0x000000007FFE1A04 000038 (v01 BOCHS BXPCHPET 00000001 BXPC 00000001) [ 0.190435][ T0] ACPI: SRAT 0x000000007FFE1A3C 000178 (v01 BOCHS BXPCSRAT 00000001 BXPC 00000001) [ 0.203177][ T0] ACPI: MCFG 0x000000007FFE1BB4 00003C (v01 BOCHS BXPCMCFG 00000001 BXPC 00000001) [ 0.214978][ T0] ACPI: SSDT 0x000000007FFE1BF0 0002CD (v01 BOCHS NVDIMM 00000001 BXPC 00000001) [ 0.226666][ T0] ACPI: NFIT 0x000000007FFE1EBD 0000E0 (v01 BOCHS BXPCNFIT 00000001 BXPC 00000001) [ 0.242026][ T0] SRAT: PXM 0 -> APIC 0x00 -> Node 0 [ 0.248738][ T0] SRAT: PXM 0 -> APIC 0x01 -> Node 0 [ 0.255828][ T0] SRAT: PXM 0 -> APIC 0x02 -> Node 0 [ 0.262581][ T0] SRAT: PXM 0 -> APIC 0x03 -> Node 0 [ 0.269530][ T0] SRAT: PXM 1 -> APIC 0x04 -> Node 1 [ 0.276607][ T0] SRAT: PXM 1 -> APIC 0x05 -> Node 1 [ 0.282612][ T0] SRAT: PXM 1 -> APIC 0x06 -> Node 1 [ 0.289995][ T0] SRAT: PXM 1 -> APIC 0x07 -> Node 1 [ 0.295730][ T0] ACPI: SRAT: Node 0 PXM 0 [mem 0x00000000-0x0009ffff] [ 0.304293][ T0] ACPI: SRAT: Node 0 PXM 0 [mem 0x00100000-0x3fffffff] [ 0.312308][ T0] ACPI: SRAT: Node 1 PXM 1 [mem 0x40000000-0x7fffffff] [ 0.321019][ T0] ACPI: SRAT: Node 1 PXM 1 [mem 0x100000000-0x57fffffff] hotplug [ 0.330321][ T0] NUMA: Node 0 [mem 0x00000000-0x0009ffff] + [mem 0x00100000-0x3fffffff] -> [mem 0x00000000-0x3fffffff] [ 0.343554][ T0] Faking node 0 at [mem 0x0000000000000000-0x000000003fffffff] (1024MB) [ 0.353386][ T0] Faking node 1 at [mem 0x0000000040000000-0x000000007ffdcfff] (1023MB) [ 0.364240][ T0] NODE_DATA(0) allocated [mem 0x3fffb000-0x3fffffff] [ 0.381222][ T0] NODE_DATA(1) allocated [mem 0x7ffd7000-0x7ffdbfff] [ 0.480894][ T0] Zone ranges: [ 0.487375][ T0] DMA [mem 0x0000000000001000-0x0000000000ffffff] [ 0.494427][ T0] DMA32 [mem 0x0000000001000000-0x000000007ffdcfff] [ 0.501376][ T0] Normal empty [ 0.505162][ T0] Device empty [ 0.508936][ T0] Movable zone start for each node [ 0.514129][ T0] Early memory node ranges [ 0.518799][ T0] node 0: [mem 0x0000000000001000-0x000000000009efff] [ 0.526566][ T0] node 0: [mem 0x0000000000100000-0x000000003fffffff] [ 0.534591][ T0] node 1: [mem 0x0000000040000000-0x000000007ffdcfff] [ 0.543894][ T0] Zeroed struct page in unavailable ranges: 133 pages [ 0.543912][ T0] Initmem setup node 0 [mem 0x0000000000001000-0x000000003fffffff] [ 0.569025][ T0] Initmem setup node 1 [mem 0x0000000040000000-0x000000007ffdcfff] [ 1.997133][ T0] kasan: KernelAddressSanitizer initialized [ 2.016714][ T0] ACPI: PM-Timer IO Port: 0x608 [ 2.021895][ T0] ACPI: LAPIC_NMI (acpi_id[0xff] dfl dfl lint[0x1]) [ 2.029608][ T0] IOAPIC[0]: apic_id 0, version 17, address 0xfec00000, GSI 0-23 [ 2.037796][ T0] ACPI: INT_SRC_OVR (bus 0 bus_irq 0 global_irq 2 dfl dfl) [ 2.045446][ T0] ACPI: INT_SRC_OVR (bus 0 bus_irq 5 global_irq 5 high level) [ 2.054277][ T0] ACPI: INT_SRC_OVR (bus 0 bus_irq 9 global_irq 9 high level) [ 2.062615][ T0] ACPI: INT_SRC_OVR (bus 0 bus_irq 10 global_irq 10 high level) [ 2.070465][ T0] ACPI: INT_SRC_OVR (bus 0 bus_irq 11 global_irq 11 high level) [ 2.078789][ T0] Using ACPI (MADT) for SMP configuration information [ 2.086181][ T0] ACPI: HPET id: 0x8086a201 base: 0xfed00000 [ 2.092558][ T0] TSC deadline timer available [ 2.097655][ T0] smpboot: Allowing 8 CPUs, 4 hotplug CPUs [ 2.104763][ T0] kvm-guest: KVM setup pv remote TLB flush [ 2.111520][ T0] PM: hibernation: Registered nosave memory: [mem 0x00000000-0x00000fff] [ 2.120368][ T0] PM: hibernation: Registered nosave memory: [mem 0x0009f000-0x0009ffff] [ 2.129177][ T0] PM: hibernation: Registered nosave memory: [mem 0x000a0000-0x000effff] [ 2.140375][ T0] PM: hibernation: Registered nosave memory: [mem 0x000f0000-0x000fffff] [ 2.150727][ T0] [mem 0xc0000000-0xfed1bfff] available for PCI devices [ 2.158874][ T0] Booting paravirtualized kernel on KVM [ 2.165624][ T0] clocksource: refined-jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604462750000 ns [ 2.231061][ T0] setup_percpu: NR_CPUS:64 nr_cpumask_bits:64 nr_cpu_ids:8 nr_node_ids:2 [ 2.261193][ T0] percpu: Embedded 65 pages/cpu s226696 r8192 d31352 u1048576 [ 2.272771][ T0] kvm-guest: stealtime: cpu 0, msr 2ce20a40 [ 2.280815][ T0] kvm-guest: PV spinlocks enabled [ 2.286374][ T0] PV qspinlock hash table entries: 256 (order: 0, 4096 bytes, linear) [ 2.298868][ T0] Built 2 zonelists, mobility grouping on. Total pages: 515942 [ 2.308559][ T0] Policy zone: DMA32 [ 2.314246][ 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 [ 2.404979][ T0] mem auto-init: stack:off, heap alloc:on, heap free:off [ 2.821535][ T0] Memory: 1503356K/2096620K available (116743K kernel code, 17679K rwdata, 21640K rodata, 2792K init, 23928K bss, 593008K reserved, 0K cma-reserved) [ 2.867936][ T0] Running RCU self tests [ 2.872883][ T0] rcu: Preemptible hierarchical RCU implementation. [ 2.882020][ T0] rcu: RCU lockdep checking is enabled. [ 2.888991][ T0] rcu: RCU restricting CPUs from NR_CPUS=64 to nr_cpu_ids=8. [ 2.896090][ T0] rcu: RCU callback double-/use-after-free debug enabled. [ 2.905963][ T0] rcu: RCU debug extended QS entry/exit. [ 2.912547][ T0] All grace periods are expedited (rcu_expedited). [ 2.918883][ T0] Trampoline variant of Tasks RCU enabled. [ 2.925860][ T0] rcu: RCU calculated value of scheduler-enlistment delay is 10 jiffies. [ 2.934395][ T0] rcu: Adjusting geometry for rcu_fanout_leaf=16, nr_cpu_ids=8 [ 2.952592][ T0] NR_IRQS: 4352, nr_irqs: 488, preallocated irqs: 16 [ 2.970257][ T0] random: get_random_bytes called from start_kernel+0x23b/0x46a with crng_init=0 [ 3.045700][ T0] Console: colour VGA+ 80x25 [ 3.060466][ T0] printk: console [ttyS0] enabled [ 3.060466][ T0] printk: console [ttyS0] enabled [ 3.070582][ T0] printk: bootconsole [earlyser0] disabled [ 3.070582][ T0] printk: bootconsole [earlyser0] disabled [ 3.081982][ T0] Lock dependency validator: Copyright (c) 2006 Red Hat, Inc., Ingo Molnar [ 3.090292][ T0] ... MAX_LOCKDEP_SUBCLASSES: 8 [ 3.095068][ T0] ... MAX_LOCK_DEPTH: 48 [ 3.099885][ T0] ... MAX_LOCKDEP_KEYS: 8192 [ 3.105131][ T0] ... CLASSHASH_SIZE: 4096 [ 3.110182][ T0] ... MAX_LOCKDEP_ENTRIES: 32768 [ 3.115247][ T0] ... MAX_LOCKDEP_CHAINS: 65536 [ 3.120298][ T0] ... CHAINHASH_SIZE: 32768 [ 3.125571][ T0] memory used by lock dependency info: 6301 kB [ 3.132091][ T0] memory used for stack traces: 4224 kB [ 3.137608][ T0] per task-struct memory footprint: 1920 bytes [ 3.145391][ T0] mempolicy: Enabling automatic NUMA balancing. Configure with numa_balancing= or the kernel.numa_balancing sysctl [ 3.159184][ T0] ACPI: Core revision 20200717 [ 3.171604][ T0] clocksource: hpet: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604467 ns [ 3.188398][ T0] APIC: Switch to symmetric I/O mode setup [ 3.197733][ T0] x2apic enabled [ 3.204545][ T0] Switched APIC routing to physical x2apic. [ 3.210562][ T0] kvm-guest: setup PV IPIs [ 3.230188][ T0] ..TIMER: vector=0x30 apic1=0 pin1=2 apic2=-1 pin2=-1 [ 3.237572][ T0] clocksource: tsc-early: mask: 0xffffffffffffffff max_cycles: 0x1cd4c92266a, max_idle_ns: 440795223404 ns [ 3.250309][ T0] Calibrating delay loop (skipped) preset value.. 4000.32 BogoMIPS (lpj=20001640) [ 3.260707][ T0] pid_max: default: 32768 minimum: 301 [ 3.272889][ T0] LSM: Security Framework initializing [ 3.280339][ T0] LSM: security= is ignored because it is superseded by lsm= [ 3.290141][ T0] Yama: becoming mindful. [ 3.296063][ T0] SELinux: Initializing. [ 3.301982][ T0] TOMOYO Linux initialized [ 3.307050][ T0] LSM support for eBPF active [ 3.321651][ T0] Dentry cache hash table entries: 262144 (order: 9, 2097152 bytes, vmalloc) [ 3.334022][ T0] Inode-cache hash table entries: 131072 (order: 8, 1048576 bytes, vmalloc) [ 3.340767][ T0] Mount-cache hash table entries: 4096 (order: 3, 32768 bytes, vmalloc) [ 3.350874][ T0] Mountpoint-cache hash table entries: 4096 (order: 3, 32768 bytes, vmalloc) [ 3.396046][ T0] x86/cpu: User Mode Instruction Prevention (UMIP) activated [ 3.403427][ T0] Last level iTLB entries: 4KB 0, 2MB 0, 4MB 0 [ 3.410135][ T0] Last level dTLB entries: 4KB 0, 2MB 0, 4MB 0, 1GB 0 [ 3.420517][ T0] Spectre V1 : Mitigation: usercopy/swapgs barriers and __user pointer sanitization [ 3.430224][ T0] Spectre V2 : Spectre mitigation: kernel not compiled with retpoline; no mitigation available! [ 3.430281][ T0] Speculative Store Bypass: Mitigation: Speculative Store Bypass disabled via prctl [ 3.450754][ T0] TAA: Mitigation: Clear CPU buffers [ 3.456884][ T0] MDS: Mitigation: Clear CPU buffers [ 3.482280][ T0] Freeing SMP alternatives memory: 104K [ 3.555586][ T1] smpboot: CPU0: Intel(R) Xeon(R) CPU @ 2.00GHz (family: 0x6, model: 0x55, stepping: 0x3) [ 3.572270][ T1] Performance Events: unsupported p6 CPU model 85 no PMU driver, software events only. [ 3.583223][ T1] rcu: Hierarchical SRCU implementation. [ 3.593508][ T1] dyndbg: Ignore empty _ddebug table in a CONFIG_DYNAMIC_DEBUG_CORE build [ 3.602509][ T1] NMI watchdog: Perf NMI watchdog permanently disabled [ 3.615374][ T1] smp: Bringing up secondary CPUs ... [ 3.628859][ T1] x86: Booting SMP configuration: [ 3.630417][ T1] .... node #0, CPUs: #1 [ 0.241241][ T0] kvm-clock: cpu 1, msr bed1041, secondary cpu clock [ 3.652576][ T15] kvm-guest: stealtime: cpu 1, msr 2cf20a40 [ 3.660809][ 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. [ 3.670414][ 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. [ 3.687392][ T1] #2 [ 0.241241][ T0] kvm-clock: cpu 2, msr bed1081, secondary cpu clock [ 3.702738][ T20] kvm-guest: stealtime: cpu 2, msr 2d020a40 [ 3.714574][ T1] #3 [ 0.241241][ T0] kvm-clock: cpu 3, msr bed10c1, secondary cpu clock [ 3.727995][ T25] kvm-guest: stealtime: cpu 3, msr 2d120a40 [ 3.730444][ T1] smp: Brought up 2 nodes, 4 CPUs [ 3.735350][ T1] smpboot: Max logical packages: 2 [ 3.740147][ T1] smpboot: Total of 4 processors activated (16001.31 BogoMIPS) [ 3.762981][ T1] devtmpfs: initialized [ 3.771087][ T1] x86/mm: Memory block size: 128MB [ 3.813363][ T1] clocksource: jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604462750000 ns [ 3.822068][ T33] kworker/u17:0 (33) used greatest stack depth: 27528 bytes left [ 3.831352][ T1] futex hash table entries: 2048 (order: 6, 262144 bytes, vmalloc) [ 3.844546][ T1] xor: automatically using best checksumming function avx [ 3.866276][ T1] PM: RTC time: 20:11:13, date: 2020-08-22 [ 3.882379][ T1] NET: Registered protocol family 16 [ 3.894498][ T1] audit: initializing netlink subsys (disabled) [ 3.902299][ T39] audit: type=2000 audit(1598127074.005:1): state=initialized audit_enabled=0 res=1 [ 3.918167][ T1] thermal_sys: Registered thermal governor 'step_wise' [ 3.918185][ T1] thermal_sys: Registered thermal governor 'user_space' [ 3.927792][ T1] cpuidle: using governor menu [ 3.940162][ T1] NET: Registered protocol family 42 [ 3.946562][ T1] ACPI: bus type PCI registered [ 3.964186][ T1] dca service started, version 1.12.1 [ 3.971143][ T1] PCI: MMCONFIG for domain 0000 [bus 00-ff] at [mem 0xb0000000-0xbfffffff] (base 0xb0000000) [ 3.980218][ T1] PCI: MMCONFIG at [mem 0xb0000000-0xbfffffff] reserved in E820 [ 4.030242][ T1] PCI: Using configuration type 1 for base access [ 4.154878][ T350] kworker/u17:3 (350) used greatest stack depth: 27472 bytes left [ 4.351892][ T1] HugeTLB registered 2.00 MiB page size, pre-allocated 0 pages [ 4.401586][ T1] cryptd: max_cpu_qlen set to 1000 [ 4.619524][ T1] raid6: avx512x4 gen() 15368 MB/s [ 4.785830][ T1] raid6: avx512x4 xor() 6950 MB/s [ 4.956680][ T1] raid6: avx512x2 gen() 13192 MB/s [ 5.125941][ T1] raid6: avx512x2 xor() 6145 MB/s [ 5.296016][ T1] raid6: avx512x1 gen() 8332 MB/s [ 5.466076][ T1] raid6: avx512x1 xor() 3215 MB/s [ 5.636565][ T1] raid6: avx2x4 gen() 10414 MB/s [ 5.806549][ T1] raid6: avx2x4 xor() 5063 MB/s [ 5.976203][ T1] raid6: avx2x2 gen() 7046 MB/s [ 6.143752][ T1] raid6: avx2x2 xor() 2947 MB/s [ 6.320176][ T1] raid6: avx2x1 gen() 4116 MB/s [ 6.485701][ T1] raid6: avx2x1 xor() 1733 MB/s [ 6.655693][ T1] raid6: sse2x4 gen() 5243 MB/s [ 6.825555][ T1] raid6: sse2x4 xor() 2890 MB/s [ 6.995999][ T1] raid6: sse2x2 gen() 3420 MB/s [ 7.166689][ T1] raid6: sse2x2 xor() 1755 MB/s [ 7.335712][ T1] raid6: sse2x1 gen() 2100 MB/s [ 7.506040][ T1] raid6: sse2x1 xor() 860 MB/s [ 7.510148][ T1] raid6: using algorithm avx512x4 gen() 15368 MB/s [ 7.517491][ T1] raid6: .... xor() 6950 MB/s, rmw enabled [ 7.530152][ T1] raid6: using avx512x2 recovery algorithm [ 7.540628][ T1] ACPI: Added _OSI(Module Device) [ 7.546599][ T1] ACPI: Added _OSI(Processor Device) [ 7.550149][ T1] ACPI: Added _OSI(3.0 _SCP Extensions) [ 7.555738][ T1] ACPI: Added _OSI(Processor Aggregator Device) [ 7.560176][ T1] ACPI: Added _OSI(Linux-Dell-Video) [ 7.565640][ T1] ACPI: Added _OSI(Linux-Lenovo-NV-HDMI-Audio) [ 7.570145][ T1] ACPI: Added _OSI(Linux-HPI-Hybrid-Graphics) [ 7.635386][ T1] ACPI: 2 ACPI AML tables successfully acquired and loaded [ 7.680734][ T1] ACPI: Interpreter enabled [ 7.686637][ T1] ACPI: (supports S0 S3 S4 S5) [ 7.690287][ T1] ACPI: Using IOAPIC for interrupt routing [ 7.700629][ T1] PCI: Using host bridge windows from ACPI; if necessary, use "pci=nocrs" and report a bug [ 7.714650][ T1] ACPI: Enabled 3 GPEs in block 00 to 3F [ 7.833455][ T1] ACPI: PCI Root Bridge [PCI0] (domain 0000 [bus 00-ff]) [ 7.851002][ T1] acpi PNP0A08:00: _OSC: OS supports [ExtendedConfig ASPM ClockPM Segments MSI HPX-Type3] [ 7.864922][ T1] acpi PNP0A08:00: _OSC: platform does not support [LTR] [ 7.872976][ T1] acpi PNP0A08:00: _OSC: OS now controls [PCIeHotplug PME AER PCIeCapability] [ 7.886173][ T1] PCI host bridge to bus 0000:00 [ 7.890177][ T1] pci_bus 0000:00: Unknown NUMA node; performance will be reduced [ 7.898521][ T1] pci_bus 0000:00: root bus resource [io 0x0000-0x0cf7 window] [ 7.910152][ T1] pci_bus 0000:00: root bus resource [io 0x0d00-0xffff window] [ 7.918285][ T1] pci_bus 0000:00: root bus resource [mem 0x000a0000-0x000bffff window] [ 7.920149][ T1] pci_bus 0000:00: root bus resource [mem 0x80000000-0xafffffff window] [ 7.928069][ T1] pci_bus 0000:00: root bus resource [mem 0xc0000000-0xfebfffff window] [ 7.940219][ T1] pci_bus 0000:00: root bus resource [mem 0x580000000-0xd7fffffff window] [ 7.949835][ T1] pci_bus 0000:00: root bus resource [bus 00-ff] [ 7.962296][ T1] pci 0000:00:00.0: [8086:29c0] type 00 class 0x060000 [ 7.982625][ T1] pci 0000:00:01.0: [1af4:1050] type 00 class 0x030000 [ 8.007275][ T1] pci 0000:00:01.0: reg 0x10: [mem 0xfe000000-0xfe7fffff pref] [ 8.040100][ T1] pci 0000:00:01.0: reg 0x18: [mem 0xfe800000-0xfe803fff 64bit pref] [ 8.077503][ T1] pci 0000:00:01.0: reg 0x20: [mem 0xfebf4000-0xfebf4fff] [ 8.100100][ T1] pci 0000:00:01.0: reg 0x30: [mem 0xfebe0000-0xfebeffff pref] [ 8.163236][ T1] pci 0000:00:02.0: [1af4:1000] type 00 class 0x020000 [ 8.185690][ T1] pci 0000:00:02.0: reg 0x10: [io 0xc680-0xc69f] [ 8.192615][ T1] pci 0000:00:02.0: reg 0x14: [mem 0xfebf5000-0xfebf5fff] [ 8.206703][ T1] pci 0000:00:02.0: reg 0x20: [mem 0xfe804000-0xfe807fff 64bit pref] [ 8.222118][ T1] pci 0000:00:02.0: reg 0x30: [mem 0xfeb40000-0xfeb7ffff pref] [ 8.242477][ T1] pci 0000:00:03.0: [8086:100e] type 00 class 0x020000 [ 8.253743][ T1] pci 0000:00:03.0: reg 0x10: [mem 0xfebc0000-0xfebdffff] [ 8.272085][ T1] pci 0000:00:03.0: reg 0x14: [io 0xc600-0xc63f] [ 8.291367][ T1] pci 0000:00:03.0: reg 0x30: [mem 0xfeb80000-0xfebbffff pref] [ 8.323814][ T1] pci 0000:00:04.0: [1274:5000] type 00 class 0x040100 [ 8.332166][ T1] pci 0000:00:04.0: reg 0x10: [io 0xc400-0xc4ff] [ 8.365790][ T1] pci 0000:00:05.0: [8086:2415] type 00 class 0x040100 [ 8.372854][ T1] pci 0000:00:05.0: reg 0x10: [io 0xc000-0xc3ff] [ 8.392313][ T1] pci 0000:00:05.0: reg 0x14: [io 0xc500-0xc5ff] [ 8.426835][ T1] pci 0000:00:06.0: [8086:2668] type 00 class 0x040300 [ 8.442201][ T1] pci 0000:00:06.0: reg 0x10: [mem 0xfebf0000-0xfebf3fff] [ 8.465123][ T1] pci 0000:00:07.0: [1af4:1009] type 00 class 0x000200 [ 8.473943][ T1] pci 0000:00:07.0: reg 0x10: [io 0xc6a0-0xc6bf] [ 8.493716][ T1] pci 0000:00:07.0: reg 0x14: [mem 0xfebf6000-0xfebf6fff] [ 8.518895][ T1] pci 0000:00:07.0: reg 0x20: [mem 0xfe808000-0xfe80bfff 64bit pref] [ 8.530414][ T1] pci 0000:00:1d.0: [8086:2934] type 00 class 0x0c0300 [ 8.542004][ T1] pci 0000:00:1d.0: reg 0x20: [io 0xc6c0-0xc6df] [ 8.560347][ T1] pci 0000:00:1d.1: [8086:2935] type 00 class 0x0c0300 [ 8.576207][ T1] pci 0000:00:1d.1: reg 0x20: [io 0xc6e0-0xc6ff] [ 8.584450][ T1] pci 0000:00:1d.2: [8086:2936] type 00 class 0x0c0300 [ 8.595069][ T1] pci 0000:00:1d.2: reg 0x20: [io 0xc700-0xc71f] [ 8.604711][ T1] pci 0000:00:1d.7: [8086:293a] type 00 class 0x0c0320 [ 8.611642][ T1] pci 0000:00:1d.7: reg 0x10: [mem 0xfebf7000-0xfebf7fff] [ 8.630149][ T1] pci 0000:00:1f.0: [8086:2918] type 00 class 0x060100 [ 8.645726][ T1] pci 0000:00:1f.0: quirk: [io 0x0600-0x067f] claimed by ICH6 ACPI/GPIO/TCO [ 8.654554][ T1] pci 0000:00:1f.2: [8086:2922] type 00 class 0x010601 [ 8.669521][ T1] pci 0000:00:1f.2: reg 0x20: [io 0xc720-0xc73f] [ 8.681541][ T1] pci 0000:00:1f.2: reg 0x24: [mem 0xfebf8000-0xfebf8fff] [ 8.695613][ T1] pci 0000:00:1f.3: [8086:2930] type 00 class 0x0c0500 [ 8.705876][ T1] pci 0000:00:1f.3: reg 0x20: [io 0x0700-0x073f] [ 8.740745][ T1] ACPI: PCI Interrupt Link [LNKA] (IRQs 5 *10 11) [ 8.752834][ T1] ACPI: PCI Interrupt Link [LNKB] (IRQs 5 *10 11) [ 8.761073][ T1] ACPI: PCI Interrupt Link [LNKC] (IRQs 5 10 *11) [ 8.769148][ T1] ACPI: PCI Interrupt Link [LNKD] (IRQs 5 10 *11) [ 8.772974][ T1] ACPI: PCI Interrupt Link [LNKE] (IRQs 5 *10 11) [ 8.781269][ T1] ACPI: PCI Interrupt Link [LNKF] (IRQs 5 *10 11) [ 8.789830][ T1] ACPI: PCI Interrupt Link [LNKG] (IRQs 5 10 *11) [ 8.802102][ T1] ACPI: PCI Interrupt Link [LNKH] (IRQs 5 10 *11) [ 8.808966][ T1] ACPI: PCI Interrupt Link [GSIA] (IRQs *16) [ 8.810429][ T1] ACPI: PCI Interrupt Link [GSIB] (IRQs *17) [ 8.816729][ T1] ACPI: PCI Interrupt Link [GSIC] (IRQs *18) [ 8.830386][ T1] ACPI: PCI Interrupt Link [GSID] (IRQs *19) [ 8.836801][ T1] ACPI: PCI Interrupt Link [GSIE] (IRQs *20) [ 8.840432][ T1] ACPI: PCI Interrupt Link [GSIF] (IRQs *21) [ 8.846303][ T1] ACPI: PCI Interrupt Link [GSIG] (IRQs *22) [ 8.850404][ T1] ACPI: PCI Interrupt Link [GSIH] (IRQs *23) [ 8.900934][ T1428] kworker/u17:4 (1428) used greatest stack depth: 27424 bytes left [ 8.902929][ T1] iommu: Default domain type: Translated [ 8.920366][ T1] pci 0000:00:01.0: vgaarb: setting as boot VGA device [ 8.920366][ T1] pci 0000:00:01.0: vgaarb: VGA device added: decodes=io+mem,owns=io+mem,locks=none [ 8.940309][ T1] pci 0000:00:01.0: vgaarb: bridge control possible [ 8.947029][ T1] vgaarb: loaded [ 8.966879][ T1] SCSI subsystem initialized [ 8.982796][ T1] ACPI: bus type USB registered [ 8.989567][ T1] usbcore: registered new interface driver usbfs [ 8.990655][ T1] usbcore: registered new interface driver hub [ 9.000468][ T1] usbcore: registered new device driver usb [ 9.012219][ T1] mc: Linux media interface: v0.10 [ 9.018655][ T1] videodev: Linux video capture interface: v2.00 [ 9.030916][ T1] pps_core: LinuxPPS API ver. 1 registered [ 9.031750][ T1] pps_core: Software ver. 5.3.6 - Copyright 2005-2007 Rodolfo Giometti [ 9.040466][ T1] PTP clock support registered [ 9.051131][ T1] EDAC MC: Ver: 3.0.0 [ 9.070633][ T1] Advanced Linux Sound Architecture Driver Initialized. [ 9.082309][ T1] Bluetooth: Core ver 2.22 [ 9.090307][ T1] NET: Registered protocol family 31 [ 9.100142][ T1] Bluetooth: HCI device and connection manager initialized [ 9.107841][ T1] Bluetooth: HCI socket layer initialized [ 9.110159][ T1] Bluetooth: L2CAP socket layer initialized [ 9.116734][ T1] Bluetooth: SCO socket layer initialized [ 9.120410][ T1] NET: Registered protocol family 8 [ 9.125729][ T1] NET: Registered protocol family 20 [ 9.131140][ T1] NetLabel: Initializing [ 9.135946][ T1] NetLabel: domain hash size = 128 [ 9.150158][ T1] NetLabel: protocols = UNLABELED CIPSOv4 CALIPSO [ 9.162366][ T1] NetLabel: unlabeled traffic allowed by default [ 9.173689][ T1] nfc: nfc_init: NFC Core ver 0.1 [ 9.180983][ T1] NET: Registered protocol family 39 [ 9.189005][ T1] PCI: Using ACPI for IRQ routing [ 9.835233][ T1] hpet0: at MMIO 0xfed00000, IRQs 2, 8, 0 [ 9.840155][ T1] hpet0: 3 comparators, 64-bit 100.000000 MHz counter [ 9.854987][ T1] clocksource: Switched to clocksource kvm-clock [ 12.994277][ T1] VFS: Disk quotas dquot_6.6.0 [ 13.001924][ T1] VFS: Dquot-cache hash table entries: 512 (order 0, 4096 bytes) [ 13.012365][ T1] FS-Cache: Loaded [ 13.020422][ T1] CacheFiles: Loaded [ 13.027007][ T1] TOMOYO: 2.6.0 [ 13.030941][ T1] Mandatory Access Control activated. [ 13.038149][ T1] pnp: PnP ACPI init [ 13.060669][ T1] pnp: PnP ACPI: found 6 devices [ 13.136202][ T1] clocksource: acpi_pm: mask: 0xffffff max_cycles: 0xffffff, max_idle_ns: 2085701024 ns [ 13.153764][ T1] NET: Registered protocol family 2 [ 13.175292][ T1] tcp_listen_portaddr_hash hash table entries: 1024 (order: 4, 81920 bytes, vmalloc) [ 13.189131][ T1] TCP established hash table entries: 16384 (order: 5, 131072 bytes, vmalloc) [ 13.203939][ T1] TCP bind hash table entries: 16384 (order: 8, 1179648 bytes, vmalloc) [ 13.215741][ T1] TCP: Hash tables configured (established 16384 bind 16384) [ 13.229864][ T1] MPTCP token hash table entries: 2048 (order: 5, 180224 bytes, vmalloc) [ 13.242248][ T1] UDP hash table entries: 1024 (order: 5, 163840 bytes, vmalloc) [ 13.253296][ T1] UDP-Lite hash table entries: 1024 (order: 5, 163840 bytes, vmalloc) [ 13.271631][ T1] NET: Registered protocol family 1 [ 13.286726][ T1] RPC: Registered named UNIX socket transport module. [ 13.297586][ T1] RPC: Registered udp transport module. [ 13.306359][ T1] RPC: Registered tcp transport module. [ 13.315310][ T1] RPC: Registered tcp NFSv4.1 backchannel transport module. [ 13.330332][ T1] NET: Registered protocol family 44 [ 13.337859][ T1] pci_bus 0000:00: resource 4 [io 0x0000-0x0cf7 window] [ 13.345535][ T1] pci_bus 0000:00: resource 5 [io 0x0d00-0xffff window] [ 13.352112][ T1] pci_bus 0000:00: resource 6 [mem 0x000a0000-0x000bffff window] [ 13.359948][ T1] pci_bus 0000:00: resource 7 [mem 0x80000000-0xafffffff window] [ 13.369201][ T1] pci_bus 0000:00: resource 8 [mem 0xc0000000-0xfebfffff window] [ 13.377818][ T1] pci_bus 0000:00: resource 9 [mem 0x580000000-0xd7fffffff window] [ 13.388289][ T1] pci 0000:00:01.0: Video device with shadowed ROM at [mem 0x000c0000-0x000dffff] [ 13.398594][ T1] pci 0000:00:01.0: pci_fixup_video+0x0/0x270 took 10494 usecs [ 13.422315][ T1] PCI Interrupt Link [GSIA] enabled at IRQ 16 [ 13.449881][ T1] pci 0000:00:1d.0: quirk_usb_early_handoff+0x0/0x105b took 40564 usecs [ 13.469743][ T1] PCI Interrupt Link [GSIB] enabled at IRQ 17 [ 13.487805][ T1] pci 0000:00:1d.1: quirk_usb_early_handoff+0x0/0x105b took 28469 usecs [ 13.509300][ T1] PCI Interrupt Link [GSIC] enabled at IRQ 18 [ 13.527223][ T1] pci 0000:00:1d.2: quirk_usb_early_handoff+0x0/0x105b took 30159 usecs [ 13.546755][ T1] PCI Interrupt Link [GSID] enabled at IRQ 19 [ 13.566124][ T1] pci 0000:00:1d.7: quirk_usb_early_handoff+0x0/0x105b took 29489 usecs [ 13.574749][ T1] PCI: CLS 0 bytes, default 64 [ 13.594864][ T1] PCI-DMA: Using software bounce buffering for IO (SWIOTLB) [ 13.605279][ T1] software IO TLB: mapped [mem 0x7ac00000-0x7ec00000] (64MB) [ 13.624198][ T1] kvm: no hardware support [ 13.630650][ T1] has_svm: not amd or hygon [ 13.637033][ T1] kvm: no hardware support [ 13.643466][ T1] clocksource: tsc: mask: 0xffffffffffffffff max_cycles: 0x1cd4c92266a, max_idle_ns: 440795223404 ns [ 13.658635][ T1] clocksource: Switched to clocksource tsc [ 13.667380][ T1] mce: Machine check injector initialized [ 13.686280][ T1] check: Scanning for low memory corruption every 60 seconds [ 13.823795][ T1] Initialise system trusted keyrings [ 13.834132][ T1] workingset: timestamp_bits=40 max_order=19 bucket_order=0 [ 13.843309][ T1] zbud: loaded [ 13.859039][ T1] DLM installed [ 13.865574][ T1] squashfs: version 4.0 (2009/01/31) Phillip Lougher [ 13.879076][ T1] FS-Cache: Netfs 'nfs' registered for caching [ 13.888376][ T1] NFS: Registering the id_resolver key type [ 13.894839][ T1] Key type id_resolver registered [ 13.900503][ T1] Key type id_legacy registered [ 13.906059][ T1] nfs4filelayout_init: NFSv4 File Layout Driver Registering... [ 13.914654][ T1] Installing knfsd (copyright (C) 1996 okir@monad.swb.de). [ 13.932577][ T1] FS-Cache: Netfs 'cifs' registered for caching [ 13.943880][ T1] Key type cifs.spnego registered [ 13.951792][ T1] Key type cifs.idmap registered [ 13.958144][ T1] ntfs: driver 2.1.32 [Flags: R/W]. [ 13.966401][ T1] fuse: init (API version 7.31) [ 13.975860][ T1] JFS: nTxBlock = 8192, nTxLock = 65536 [ 14.012304][ T1] SGI XFS with ACLs, security attributes, realtime, quota, no debug enabled [ 14.032337][ T1] 9p: Installing v9fs 9p2000 file system support [ 14.040349][ T1] FS-Cache: Netfs '9p' registered for caching [ 14.049736][ T1] ocfs2: Registered cluster interface o2cb [ 14.057329][ T1] ocfs2: Registered cluster interface user [ 14.065871][ T1] OCFS2 User DLM kernel interface loaded [ 14.093548][ T1] gfs2: GFS2 installed [ 14.115885][ T1] FS-Cache: Netfs 'ceph' registered for caching [ 14.125404][ T1] ceph: loaded (mds proto 32) [ 14.157823][ T1] NET: Registered protocol family 38 [ 14.166943][ T1] async_tx: api initialized (async) [ 14.174140][ T1] Key type asymmetric registered [ 14.181160][ T1] Asymmetric key parser 'x509' registered [ 14.188923][ T1] Asymmetric key parser 'pkcs8' registered [ 14.196921][ T1] Key type pkcs7_test registered [ 14.203886][ T1] Asymmetric key parser 'tpm_parser' registered [ 14.213434][ T1] Block layer SCSI generic (bsg) driver version 0.4 loaded (major 243) [ 14.227371][ T1] io scheduler mq-deadline registered [ 14.233815][ T1] io scheduler kyber registered [ 14.239926][ T1] io scheduler bfq registered [ 14.262021][ T1] hgafb: HGA card not detected. [ 14.267758][ T1] hgafb: probe of hgafb.0 failed with error -22 [ 14.276330][ T1] usbcore: registered new interface driver udlfb [ 14.290914][ T1] uvesafb: failed to execute /sbin/v86d [ 14.297002][ T1] uvesafb: make sure that the v86d helper is installed and executable [ 14.306130][ T1] uvesafb: Getting VBE info block failed (eax=0x4f00, err=-2) [ 14.313145][ T1] uvesafb: vbe_init() failed with -22 [ 14.318925][ T1] uvesafb: probe of uvesafb.0 failed with error -22 [ 14.328016][ T1] vga16fb: mapped to 0x00000000393928a2 [ 21.653603][ T1] Console: switching to colour frame buffer device 80x30 [ 30.208807][ T1] fb0: VGA16 VGA frame buffer device [ 30.277509][ T1] input: Power Button as /devices/LNXSYSTM:00/LNXPWRBN:00/input/input0 [ 30.323918][ T1] ACPI: Power Button [PWRF] [ 30.497890][ T341] ================================================================== [ 30.506176][ T341] BUG: KASAN: global-out-of-bounds in internal_create_group+0x9d8/0xb20 [ 30.506878][ T341] Read of size 8 at addr ffffffff8a2e8730 by task kworker/u17:6/341 [ 30.506878][ T341] [ 30.506878][ T341] CPU: 3 PID: 341 Comm: kworker/u17:6 Not tainted 5.9.0-rc1-syzkaller #0 [ 30.506878][ T341] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS rel-1.12.0-59-gc9ba5276e321-prebuilt.qemu.org 04/01/2014 [ 30.506878][ T341] Workqueue: events_unbound async_run_entry_fn [ 30.506878][ T341] Call Trace: [ 30.506878][ T341] dump_stack+0x18f/0x20d [ 30.506878][ T341] ? internal_create_group+0x9d8/0xb20 [ 30.506878][ T341] ? internal_create_group+0x9d8/0xb20 [ 30.506878][ T341] print_address_description.constprop.0.cold+0x5/0x497 [ 30.506878][ T341] ? vprintk_func+0x97/0x1a6 [ 30.506878][ T341] ? internal_create_group+0x9d8/0xb20 [ 30.506878][ T341] ? internal_create_group+0x9d8/0xb20 [ 30.506878][ T341] kasan_report.cold+0x1f/0x37 [ 30.506878][ T341] ? internal_create_group+0x9d8/0xb20 [ 30.506878][ T341] ? state_show+0xf0/0xf0 [ 30.506878][ T341] internal_create_group+0x9d8/0xb20 [ 30.506878][ T341] ? sysfs_remove_group+0x170/0x170 [ 30.506878][ T341] internal_create_groups.part.0+0x90/0x140 [ 30.506878][ T341] sysfs_create_groups+0x25/0x50 [ 30.506878][ T341] device_add+0x7fd/0x1c40 [ 30.506878][ T341] ? devlink_add_symlinks+0x450/0x450 [ 30.506878][ T341] ? lock_release+0x8e0/0x8e0 [ 30.506878][ T341] ? lock_downgrade+0x830/0x830 [ 30.506878][ T341] ? __schedule+0x88e/0x21e0 [ 30.506878][ T341] ? nd_synchronize+0x20/0x20 [ 30.506878][ T341] nd_async_device_register+0x12/0x80 [ 30.506878][ T341] async_run_entry_fn+0x121/0x530 [ 30.506878][ T341] process_one_work+0x94c/0x1670 [ 30.506878][ T341] ? lock_release+0x8e0/0x8e0 [ 30.506878][ T341] ? pwq_dec_nr_in_flight+0x2d0/0x2d0 [ 30.506878][ T341] ? rwlock_bug.part.0+0x90/0x90 [ 30.506878][ T341] worker_thread+0x64c/0x1120 [ 30.506878][ T341] ? process_one_work+0x1670/0x1670 [ 30.506878][ T341] kthread+0x3b5/0x4a0 [ 30.506878][ T341] ? __kthread_bind_mask+0xc0/0xc0 [ 30.506878][ T341] ? __kthread_bind_mask+0xc0/0xc0 [ 30.506878][ T341] ret_from_fork+0x1f/0x30 [ 30.506878][ T341] [ 30.506878][ T341] The buggy address belongs to the variable: [ 30.506878][ T341] nvdimm_firmware_attributes+0x10/0x40 [ 30.506878][ T341] [ 30.506878][ T341] Memory state around the buggy address: [ 30.506878][ T341] ffffffff8a2e8600: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 30.506878][ T341] ffffffff8a2e8680: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 30.506878][ T341] >ffffffff8a2e8700: f9 f9 f9 f9 00 00 f9 f9 f9 f9 f9 f9 00 00 00 00 [ 30.506878][ T341] ^ [ 30.506878][ T341] ffffffff8a2e8780: 00 00 00 f9 f9 f9 f9 f9 00 00 00 00 00 00 00 f9 [ 30.506878][ T341] ffffffff8a2e8800: f9 f9 f9 f9 00 00 00 00 00 00 00 f9 f9 f9 f9 f9 [ 30.506878][ T341] ================================================================== [ 30.506878][ T341] Disabling lock debugging due to kernel taint [ 30.845079][ T341] Kernel panic - not syncing: panic_on_warn set ... [ 30.852092][ T341] CPU: 3 PID: 341 Comm: kworker/u17:6 Tainted: G B 5.9.0-rc1-syzkaller #0 [ 30.854876][ T341] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS rel-1.12.0-59-gc9ba5276e321-prebuilt.qemu.org 04/01/2014 [ 30.854876][ T341] Workqueue: events_unbound async_run_entry_fn [ 30.854876][ T341] Call Trace: [ 30.854876][ T341] dump_stack+0x18f/0x20d [ 30.854876][ T341] ? internal_create_group+0x9c0/0xb20 [ 30.854876][ T341] panic+0x2e3/0x75c [ 30.854876][ T341] ? __warn_printk+0xf3/0xf3 [ 30.854876][ T341] ? preempt_schedule_common+0x59/0xc0 [ 30.854876][ T341] ? internal_create_group+0x9d8/0xb20 [ 30.854876][ T341] ? preempt_schedule_thunk+0x16/0x18 [ 30.854876][ T341] ? trace_hardirqs_on+0x55/0x220 [ 30.854876][ T341] ? internal_create_group+0x9d8/0xb20 [ 30.854876][ T341] ? internal_create_group+0x9d8/0xb20 [ 30.854876][ T341] end_report+0x4d/0x53 [ 30.854876][ T341] kasan_report.cold+0xd/0x37 [ 30.854876][ T341] ? internal_create_group+0x9d8/0xb20 [ 30.854876][ T341] ? state_show+0xf0/0xf0 [ 30.854876][ T341] internal_create_group+0x9d8/0xb20 [ 30.854876][ T341] ? sysfs_remove_group+0x170/0x170 [ 30.854876][ T341] internal_create_groups.part.0+0x90/0x140 [ 30.854876][ T341] sysfs_create_groups+0x25/0x50 [ 30.854876][ T341] device_add+0x7fd/0x1c40 [ 30.854876][ T341] ? devlink_add_symlinks+0x450/0x450 [ 30.854876][ T341] ? lock_release+0x8e0/0x8e0 [ 30.854876][ T341] ? lock_downgrade+0x830/0x830 [ 30.854876][ T341] ? __schedule+0x88e/0x21e0 [ 30.854876][ T341] ? nd_synchronize+0x20/0x20 [ 30.854876][ T341] nd_async_device_register+0x12/0x80 [ 30.854876][ T341] async_run_entry_fn+0x121/0x530 [ 30.854876][ T341] process_one_work+0x94c/0x1670 [ 30.854876][ T341] ? lock_release+0x8e0/0x8e0 [ 30.854876][ T341] ? pwq_dec_nr_in_flight+0x2d0/0x2d0 [ 30.854876][ T341] ? rwlock_bug.part.0+0x90/0x90 [ 30.854876][ T341] worker_thread+0x64c/0x1120 [ 30.854876][ T341] ? process_one_work+0x1670/0x1670 [ 30.854876][ T341] kthread+0x3b5/0x4a0 [ 30.854876][ T341] ? __kthread_bind_mask+0xc0/0xc0 [ 30.854876][ T341] ? __kthread_bind_mask+0xc0/0xc0 [ 30.854876][ T341] ret_from_fork+0x1f/0x30 [ 30.854876][ T341] Kernel Offset: disabled [ 30.854876][ T341] Rebooting in 86400 seconds..