[ 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 [ 0.000160][ T0] kvm-clock: cpu 0, msr becf001, primary cpu clock [ 0.000161][ T0] kvm-clock: using sched offset of 24535000754 cycles [ 0.037943][ T0] clocksource: kvm-clock: mask: 0xffffffffffffffff max_cycles: 0x1cd42e4dffb, max_idle_ns: 881590591483 ns [ 0.121063][ T0] tsc: Detected 2000.164 MHz processor [ 0.153793][ T0] last_pfn = 0x7ffdd max_arch_pfn = 0x400000000 [ 0.182541][ T0] x86/PAT: Configuration [0-7]: WB WC UC- UC WB WP UC- WT [ 0.241951][ T0] found SMP MP-table at [mem 0x000f5a40-0x000f5a4f] [ 0.271516][ T0] check: Scanning 1 areas for low memory corruption [ 0.303343][ T0] ACPI: Early table checksum verification disabled [ 0.330259][ T0] ACPI: RSDP 0x00000000000F5870 000014 (v00 BOCHS ) [ 0.360218][ T0] ACPI: RSDT 0x000000007FFE1F9D 000040 (v01 BOCHS BXPCRSDT 00000001 BXPC 00000001) [ 0.408232][ T0] ACPI: FACP 0x000000007FFE1860 0000F4 (v03 BOCHS BXPCFACP 00000001 BXPC 00000001) [ 0.463683][ T0] ACPI: DSDT 0x000000007FFDF040 002820 (v01 BOCHS BXPCDSDT 00000001 BXPC 00000001) [ 0.508822][ T0] ACPI: FACS 0x000000007FFDF000 000040 [ 0.541909][ T0] ACPI: APIC 0x000000007FFE1954 0000B0 (v01 BOCHS BXPCAPIC 00000001 BXPC 00000001) [ 0.596669][ T0] ACPI: HPET 0x000000007FFE1A04 000038 (v01 BOCHS BXPCHPET 00000001 BXPC 00000001) [ 0.644576][ T0] ACPI: SRAT 0x000000007FFE1A3C 000178 (v01 BOCHS BXPCSRAT 00000001 BXPC 00000001) [ 0.689512][ T0] ACPI: MCFG 0x000000007FFE1BB4 00003C (v01 BOCHS BXPCMCFG 00000001 BXPC 00000001) [ 0.726681][ T0] ACPI: SSDT 0x000000007FFE1BF0 0002CD (v01 BOCHS NVDIMM 00000001 BXPC 00000001) [ 0.771394][ T0] ACPI: NFIT 0x000000007FFE1EBD 0000E0 (v01 BOCHS BXPCNFIT 00000001 BXPC 00000001) [ 0.826808][ T0] SRAT: PXM 0 -> APIC 0x00 -> Node 0 [ 0.852652][ T0] SRAT: PXM 0 -> APIC 0x01 -> Node 0 [ 0.883549][ T0] SRAT: PXM 0 -> APIC 0x02 -> Node 0 [ 0.909138][ T0] SRAT: PXM 0 -> APIC 0x03 -> Node 0 [ 0.935220][ T0] SRAT: PXM 1 -> APIC 0x04 -> Node 1 [ 0.960432][ T0] SRAT: PXM 1 -> APIC 0x05 -> Node 1 [ 0.992457][ T0] SRAT: PXM 1 -> APIC 0x06 -> Node 1 [ 1.025309][ T0] SRAT: PXM 1 -> APIC 0x07 -> Node 1 [ 1.055530][ T0] ACPI: SRAT: Node 0 PXM 0 [mem 0x00000000-0x0009ffff] [ 1.092100][ T0] ACPI: SRAT: Node 0 PXM 0 [mem 0x00100000-0x3fffffff] [ 1.128845][ T0] ACPI: SRAT: Node 1 PXM 1 [mem 0x40000000-0x7fffffff] [ 1.168879][ T0] ACPI: SRAT: Node 1 PXM 1 [mem 0x100000000-0x57fffffff] hotplug [ 1.215676][ T0] NUMA: Node 0 [mem 0x00000000-0x0009ffff] + [mem 0x00100000-0x3fffffff] -> [mem 0x00000000-0x3fffffff] [ 1.284355][ T0] Faking node 0 at [mem 0x0000000000000000-0x000000003fffffff] (1024MB) [ 1.334091][ T0] Faking node 1 at [mem 0x0000000040000000-0x000000007ffdcfff] (1023MB) [ 1.382302][ T0] NODE_DATA(0) allocated [mem 0x3fffb000-0x3fffffff] [ 1.429673][ T0] NODE_DATA(1) allocated [mem 0x7ffd7000-0x7ffdbfff] [ 1.550493][ T0] Zone ranges: [ 1.573838][ T0] DMA [mem 0x0000000000001000-0x0000000000ffffff] [ 1.611491][ T0] DMA32 [mem 0x0000000001000000-0x000000007ffdcfff] [ 1.650040][ T0] Normal empty [ 1.669447][ T0] Device empty [ 1.690811][ T0] Movable zone start for each node [ 1.716841][ T0] Early memory node ranges [ 1.733792][ T0] node 0: [mem 0x0000000000001000-0x000000000009efff] [ 1.764181][ T0] node 0: [mem 0x0000000000100000-0x000000003fffffff] [ 1.802660][ T0] node 1: [mem 0x0000000040000000-0x000000007ffdcfff] [ 1.840481][ T0] Zeroed struct page in unavailable ranges: 133 pages [ 1.840587][ T0] Initmem setup node 0 [mem 0x0000000000001000-0x000000003fffffff] [ 1.926225][ T0] Initmem setup node 1 [mem 0x0000000040000000-0x000000007ffdcfff] [ 4.333697][ T0] kasan: KernelAddressSanitizer initialized [ 4.403556][ T0] ACPI: PM-Timer IO Port: 0x608 [ 4.440557][ T0] ACPI: LAPIC_NMI (acpi_id[0xff] dfl dfl lint[0x1]) [ 4.500158][ T0] IOAPIC[0]: apic_id 0, version 17, address 0xfec00000, GSI 0-23 [ 4.551088][ T0] ACPI: INT_SRC_OVR (bus 0 bus_irq 0 global_irq 2 dfl dfl) [ 4.600775][ T0] ACPI: INT_SRC_OVR (bus 0 bus_irq 5 global_irq 5 high level) [ 4.666792][ T0] ACPI: INT_SRC_OVR (bus 0 bus_irq 9 global_irq 9 high level) [ 4.710604][ T0] ACPI: INT_SRC_OVR (bus 0 bus_irq 10 global_irq 10 high level) [ 4.757514][ T0] ACPI: INT_SRC_OVR (bus 0 bus_irq 11 global_irq 11 high level) [ 4.813836][ T0] Using ACPI (MADT) for SMP configuration information [ 4.852293][ T0] ACPI: HPET id: 0x8086a201 base: 0xfed00000 [ 4.889730][ T0] TSC deadline timer available [ 4.922114][ T0] smpboot: Allowing 8 CPUs, 4 hotplug CPUs [ 4.957506][ T0] kvm-guest: KVM setup pv remote TLB flush [ 4.993513][ T0] PM: hibernation: Registered nosave memory: [mem 0x00000000-0x00000fff] [ 5.035876][ T0] PM: hibernation: Registered nosave memory: [mem 0x0009f000-0x0009ffff] [ 5.083593][ T0] PM: hibernation: Registered nosave memory: [mem 0x000a0000-0x000effff] [ 5.127749][ T0] PM: hibernation: Registered nosave memory: [mem 0x000f0000-0x000fffff] [ 5.157168][ T0] [mem 0xc0000000-0xfed1bfff] available for PCI devices [ 5.184591][ T0] Booting paravirtualized kernel on KVM [ 5.206623][ T0] clocksource: refined-jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604462750000 ns [ 5.311637][ T0] setup_percpu: NR_CPUS:64 nr_cpumask_bits:64 nr_cpu_ids:8 nr_node_ids:2 [ 5.391502][ T0] percpu: Embedded 65 pages/cpu s226696 r8192 d31352 u1048576 [ 5.450648][ T0] kvm-guest: stealtime: cpu 0, msr 2ce20a40 [ 5.479757][ T0] kvm-guest: PV spinlocks enabled [ 5.508525][ T0] PV qspinlock hash table entries: 256 (order: 0, 4096 bytes, linear) [ 5.566106][ T0] Built 2 zonelists, mobility grouping on. Total pages: 515942 [ 5.620684][ T0] Policy zone: DMA32 [ 5.651513][ 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 [ 5.987164][ T0] mem auto-init: stack:off, heap alloc:on, heap free:off [ 6.642492][ T0] Memory: 1503356K/2096620K available (116743K kernel code, 17674K rwdata, 21636K rodata, 2792K init, 23936K bss, 593008K reserved, 0K cma-reserved) [ 6.793882][ T0] Running RCU self tests [ 6.810232][ T0] rcu: Preemptible hierarchical RCU implementation. [ 6.835534][ T0] rcu: RCU lockdep checking is enabled. [ 6.856119][ T0] rcu: RCU restricting CPUs from NR_CPUS=64 to nr_cpu_ids=8. [ 6.881101][ T0] rcu: RCU callback double-/use-after-free debug enabled. [ 6.908315][ T0] rcu: RCU debug extended QS entry/exit. [ 6.929726][ T0] All grace periods are expedited (rcu_expedited). [ 6.955442][ T0] Trampoline variant of Tasks RCU enabled. [ 6.983060][ T0] rcu: RCU calculated value of scheduler-enlistment delay is 10 jiffies. [ 7.013898][ T0] rcu: Adjusting geometry for rcu_fanout_leaf=16, nr_cpu_ids=8 [ 7.061277][ T0] NR_IRQS: 4352, nr_irqs: 488, preallocated irqs: 16 [ 7.152698][ T0] random: get_random_bytes called from start_kernel+0x23b/0x46a with crng_init=0 [ 7.875563][ T0] Console: colour VGA+ 80x25 [ 7.996966][ T0] printk: console [ttyS0] enabled [ 7.996966][ T0] printk: console [ttyS0] enabled [ 8.084510][ T0] printk: bootconsole [earlyser0] disabled [ 8.084510][ T0] printk: bootconsole [earlyser0] disabled [ 8.176482][ T0] Lock dependency validator: Copyright (c) 2006 Red Hat, Inc., Ingo Molnar [ 8.245120][ T0] ... MAX_LOCKDEP_SUBCLASSES: 8 [ 8.289437][ T0] ... MAX_LOCK_DEPTH: 48 [ 8.332385][ T0] ... MAX_LOCKDEP_KEYS: 8192 [ 8.370289][ T0] ... CLASSHASH_SIZE: 4096 [ 8.410197][ T0] ... MAX_LOCKDEP_ENTRIES: 32768 [ 8.449394][ T0] ... MAX_LOCKDEP_CHAINS: 65536 [ 8.487483][ T0] ... CHAINHASH_SIZE: 32768 [ 8.523304][ T0] memory used by lock dependency info: 6301 kB [ 8.570729][ T0] memory used for stack traces: 4224 kB [ 8.613018][ T0] per task-struct memory footprint: 1920 bytes [ 8.673260][ T0] mempolicy: Enabling automatic NUMA balancing. Configure with numa_balancing= or the kernel.numa_balancing sysctl [ 8.752720][ T0] ACPI: Core revision 20200717 [ 8.816305][ T0] clocksource: hpet: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604467 ns [ 8.922918][ T0] APIC: Switch to symmetric I/O mode setup [ 8.993664][ T0] x2apic enabled [ 9.033451][ T0] Switched APIC routing to physical x2apic. [ 9.067839][ T0] kvm-guest: setup PV IPIs [ 9.195988][ T0] ..TIMER: vector=0x30 apic1=0 pin1=2 apic2=-1 pin2=-1 [ 9.239423][ T0] clocksource: tsc-early: mask: 0xffffffffffffffff max_cycles: 0x1cd4c92266a, max_idle_ns: 440795223404 ns [ 9.305152][ T0] Calibrating delay loop (skipped) preset value.. 4000.32 BogoMIPS (lpj=20001640) [ 9.315229][ T0] pid_max: default: 32768 minimum: 301 [ 9.338096][ T0] LSM: Security Framework initializing [ 9.344392][ T0] LSM: security= is ignored because it is superseded by lsm= [ 9.355416][ T0] Yama: becoming mindful. [ 9.375863][ T0] SELinux: Initializing. [ 9.404386][ T0] TOMOYO Linux initialized [ 9.417364][ T0] LSM support for eBPF active [ 9.469496][ T0] Dentry cache hash table entries: 262144 (order: 9, 2097152 bytes, vmalloc) [ 9.500626][ T0] Inode-cache hash table entries: 131072 (order: 8, 1048576 bytes, vmalloc) [ 9.506076][ T0] Mount-cache hash table entries: 4096 (order: 3, 32768 bytes, vmalloc) [ 9.514688][ T0] Mountpoint-cache hash table entries: 4096 (order: 3, 32768 bytes, vmalloc) [ 9.655610][ T0] x86/cpu: User Mode Instruction Prevention (UMIP) activated [ 9.691301][ T0] Last level iTLB entries: 4KB 0, 2MB 0, 4MB 0 [ 9.694038][ T0] Last level dTLB entries: 4KB 0, 2MB 0, 4MB 0, 1GB 0 [ 9.707469][ T0] Spectre V1 : Mitigation: usercopy/swapgs barriers and __user pointer sanitization [ 9.714749][ T0] Spectre V2 : Spectre mitigation: kernel not compiled with retpoline; no mitigation available! [ 9.714952][ T0] Speculative Store Bypass: Mitigation: Speculative Store Bypass disabled via prctl [ 9.735010][ T0] TAA: Mitigation: Clear CPU buffers [ 9.744035][ T0] MDS: Mitigation: Clear CPU buffers [ 9.831819][ T0] Freeing SMP alternatives memory: 104K [ 10.160357][ T1] smpboot: CPU0: Intel(R) Xeon(R) CPU @ 2.00GHz (family: 0x6, model: 0x55, stepping: 0x3) [ 10.243682][ T1] Performance Events: unsupported p6 CPU model 85 no PMU driver, software events only. [ 10.271213][ T1] rcu: Hierarchical SRCU implementation. [ 10.296073][ T1] dyndbg: Ignore empty _ddebug table in a CONFIG_DYNAMIC_DEBUG_CORE build [ 10.314822][ T1] NMI watchdog: Perf NMI watchdog permanently disabled [ 10.358273][ T1] smp: Bringing up secondary CPUs ... [ 10.422179][ T1] x86: Booting SMP configuration: [ 10.424807][ T1] .... node #0, CPUs: #1 [ 2.046576][ T0] kvm-clock: cpu 1, msr becf041, secondary cpu clock [ 10.567188][ T15] kvm-guest: stealtime: cpu 1, msr 2cf20a40 [ 10.626111][ 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. [ 10.636666][ 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. [ 10.674670][ T1] #2 [ 2.046576][ T0] kvm-clock: cpu 2, msr becf081, secondary cpu clock [ 10.756134][ T20] kvm-guest: stealtime: cpu 2, msr 2d020a40 [ 10.808855][ T1] #3 [ 2.046576][ T0] kvm-clock: cpu 3, msr becf0c1, secondary cpu clock [ 10.906287][ T25] kvm-guest: stealtime: cpu 3, msr 2d120a40 [ 10.945309][ T1] smp: Brought up 2 nodes, 4 CPUs [ 10.954327][ T1] smpboot: Max logical packages: 2 [ 10.964288][ T1] smpboot: Total of 4 processors activated (16001.31 BogoMIPS) [ 11.045432][ T1] devtmpfs: initialized [ 11.069346][ T1] x86/mm: Memory block size: 128MB [ 11.181484][ T1] clocksource: jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604462750000 ns [ 11.222869][ T33] kworker/u17:0 (33) used greatest stack depth: 27544 bytes left [ 11.241960][ T1] futex hash table entries: 2048 (order: 6, 262144 bytes, vmalloc) [ 11.314871][ T1] xor: automatically using best checksumming function avx [ 11.371942][ T1] PM: RTC time: 02:09:46, date: 2020-08-18 [ 11.444020][ T1] NET: Registered protocol family 16 [ 11.501862][ T1] audit: initializing netlink subsys (disabled) [ 11.559887][ T41] audit: type=2000 audit(1597716584.901:1): state=initialized audit_enabled=0 res=1 [ 11.564020][ T1] thermal_sys: Registered thermal governor 'step_wise' [ 11.564020][ T1] thermal_sys: Registered thermal governor 'user_space' [ 11.604093][ T1] cpuidle: using governor menu [ 11.667559][ T1] NET: Registered protocol family 42 [ 11.730652][ T1] ACPI: bus type PCI registered [ 11.785752][ T1] dca service started, version 1.12.1 [ 11.824020][ T1] PCI: MMCONFIG for domain 0000 [bus 00-ff] at [mem 0xb0000000-0xbfffffff] (base 0xb0000000) [ 11.884502][ T1] PCI: MMCONFIG at [mem 0xb0000000-0xbfffffff] reserved in E820 [ 12.487769][ T1] PCI: Using configuration type 1 for base access [ 12.824020][ T68] kworker/u17:1 (68) used greatest stack depth: 27424 bytes left [ 13.778140][ T1] HugeTLB registered 2.00 MiB page size, pre-allocated 0 pages [ 14.017514][ T1] cryptd: max_cpu_qlen set to 1000 [ 14.405266][ T1] raid6: avx512x4 gen() 13829 MB/s [ 14.604038][ T1] raid6: avx512x4 xor() 4671 MB/s [ 14.823117][ T1] raid6: avx512x2 gen() 11746 MB/s [ 15.019178][ T1] raid6: avx512x2 xor() 5414 MB/s [ 15.194633][ T1] raid6: avx512x1 gen() 7074 MB/s [ 15.377520][ T1] raid6: avx512x1 xor() 2874 MB/s [ 15.573101][ T1] raid6: avx2x4 gen() 9693 MB/s [ 15.753393][ T1] raid6: avx2x4 xor() 2317 MB/s [ 15.945006][ T1] raid6: avx2x2 gen() 6037 MB/s [ 16.142668][ T1] raid6: avx2x2 xor() 2908 MB/s [ 16.324045][ T1] raid6: avx2x1 gen() 4077 MB/s [ 16.509452][ T1] raid6: avx2x1 xor() 1675 MB/s [ 16.703002][ T1] raid6: sse2x4 gen() 4993 MB/s [ 16.883733][ T1] raid6: sse2x4 xor() 960 MB/s [ 17.084443][ T1] raid6: sse2x2 gen() 2986 MB/s [ 17.277159][ T1] raid6: sse2x2 xor() 1567 MB/s [ 17.474255][ T1] raid6: sse2x1 gen() 2140 MB/s [ 17.660916][ T1] raid6: sse2x1 xor() 847 MB/s [ 17.684152][ T1] raid6: using algorithm avx512x4 gen() 13829 MB/s [ 17.714413][ T1] raid6: .... xor() 4671 MB/s, rmw enabled [ 17.734769][ T1] raid6: using avx512x2 recovery algorithm [ 17.788290][ T1] ACPI: Added _OSI(Module Device) [ 17.804156][ T1] ACPI: Added _OSI(Processor Device) [ 17.814199][ T1] ACPI: Added _OSI(3.0 _SCP Extensions) [ 17.834241][ T1] ACPI: Added _OSI(Processor Aggregator Device) [ 17.864419][ T1] ACPI: Added _OSI(Linux-Dell-Video) [ 17.874137][ T1] ACPI: Added _OSI(Linux-Lenovo-NV-HDMI-Audio) [ 17.894095][ T1] ACPI: Added _OSI(Linux-HPI-Hybrid-Graphics) [ 18.020263][ T1] ACPI: 2 ACPI AML tables successfully acquired and loaded [ 18.248501][ T1] ACPI: Interpreter enabled [ 18.285218][ T1] ACPI: (supports S0 S3 S4 S5) [ 18.304932][ T1] ACPI: Using IOAPIC for interrupt routing [ 18.351954][ T1] PCI: Using host bridge windows from ACPI; if necessary, use "pci=nocrs" and report a bug [ 18.383813][ T1] ACPI: Enabled 3 GPEs in block 00 to 3F [ 18.644021][ T1] ACPI: PCI Root Bridge [PCI0] (domain 0000 [bus 00-ff]) [ 18.697366][ T1] acpi PNP0A08:00: _OSC: OS supports [ExtendedConfig ASPM ClockPM Segments MSI HPX-Type3] [ 18.742934][ T1] acpi PNP0A08:00: _OSC: platform does not support [LTR] [ 18.777690][ T1] acpi PNP0A08:00: _OSC: OS now controls [PCIeHotplug PME AER PCIeCapability] [ 18.836822][ T1] PCI host bridge to bus 0000:00 [ 18.854306][ T1] pci_bus 0000:00: Unknown NUMA node; performance will be reduced [ 18.884380][ T1] pci_bus 0000:00: root bus resource [io 0x0000-0x0cf7 window] [ 18.904171][ T1] pci_bus 0000:00: root bus resource [io 0x0d00-0xffff window] [ 18.934208][ T1] pci_bus 0000:00: root bus resource [mem 0x000a0000-0x000bffff window] [ 18.964578][ T1] pci_bus 0000:00: root bus resource [mem 0x80000000-0xafffffff window] [ 19.014458][ T1] pci_bus 0000:00: root bus resource [mem 0xc0000000-0xfebfffff window] [ 19.055128][ T1] pci_bus 0000:00: root bus resource [mem 0x580000000-0xd7fffffff window] [ 19.127496][ T1] pci_bus 0000:00: root bus resource [bus 00-ff] [ 19.193086][ T1] pci 0000:00:00.0: [8086:29c0] type 00 class 0x060000 [ 19.313461][ T1] pci 0000:00:01.0: [1af4:1050] type 00 class 0x030000 [ 19.404020][ T1] pci 0000:00:01.0: reg 0x10: [mem 0xfe000000-0xfe7fffff pref] [ 19.684020][ T1] pci 0000:00:01.0: reg 0x18: [mem 0xfe800000-0xfe803fff 64bit pref] [ 19.867582][ T1] pci 0000:00:01.0: reg 0x20: [mem 0xfebf4000-0xfebf4fff] [ 19.914020][ T1] pci 0000:00:01.0: reg 0x30: [mem 0xfebe0000-0xfebeffff pref] [ 20.400977][ T1] pci 0000:00:02.0: [1af4:1000] type 00 class 0x020000 [ 20.424020][ T1] pci 0000:00:02.0: reg 0x10: [io 0xc680-0xc69f] [ 20.445072][ T1] pci 0000:00:02.0: reg 0x14: [mem 0xfebf5000-0xfebf5fff] [ 20.478847][ T1] pci 0000:00:02.0: reg 0x20: [mem 0xfe804000-0xfe807fff 64bit pref] [ 20.491620][ T1] pci 0000:00:02.0: reg 0x30: [mem 0xfeb40000-0xfeb7ffff pref] [ 20.596621][ T1] pci 0000:00:03.0: [8086:100e] type 00 class 0x020000 [ 20.616696][ T1] pci 0000:00:03.0: reg 0x10: [mem 0xfebc0000-0xfebdffff] [ 20.632203][ T1] pci 0000:00:03.0: reg 0x14: [io 0xc600-0xc63f] [ 20.667980][ T1] pci 0000:00:03.0: reg 0x30: [mem 0xfeb80000-0xfebbffff pref] [ 20.714664][ T1] pci 0000:00:04.0: [1274:5000] type 00 class 0x040100 [ 20.737918][ T1] pci 0000:00:04.0: reg 0x10: [io 0xc400-0xc4ff] [ 20.805234][ T1] pci 0000:00:05.0: [8086:2415] type 00 class 0x040100 [ 20.824786][ T1] pci 0000:00:05.0: reg 0x10: [io 0xc000-0xc3ff] [ 20.839496][ T1] pci 0000:00:05.0: reg 0x14: [io 0xc500-0xc5ff] [ 20.890127][ T1] pci 0000:00:06.0: [8086:2668] type 00 class 0x040300 [ 20.903159][ T1] pci 0000:00:06.0: reg 0x10: [mem 0xfebf0000-0xfebf3fff] [ 21.274020][ T1] pci 0000:00:07.0: [1af4:1009] type 00 class 0x000200 [ 21.352693][ T1] pci 0000:00:07.0: reg 0x10: [io 0xc6a0-0xc6bf] [ 21.434020][ T1] pci 0000:00:07.0: reg 0x14: [mem 0xfebf6000-0xfebf6fff] [ 21.518256][ T1] pci 0000:00:07.0: reg 0x20: [mem 0xfe808000-0xfe80bfff 64bit pref] [ 21.669252][ T1] pci 0000:00:1d.0: [8086:2934] type 00 class 0x0c0300 [ 21.750663][ T1] pci 0000:00:1d.0: reg 0x20: [io 0xc6c0-0xc6df] [ 21.819572][ T1] pci 0000:00:1d.1: [8086:2935] type 00 class 0x0c0300 [ 21.884265][ T1] pci 0000:00:1d.1: reg 0x20: [io 0xc6e0-0xc6ff] [ 21.934630][ T1] pci 0000:00:1d.2: [8086:2936] type 00 class 0x0c0300 [ 22.001728][ T1] pci 0000:00:1d.2: reg 0x20: [io 0xc700-0xc71f] [ 22.088985][ T1] pci 0000:00:1d.7: [8086:293a] type 00 class 0x0c0320 [ 22.142851][ T1] pci 0000:00:1d.7: reg 0x10: [mem 0xfebf7000-0xfebf7fff] [ 22.240562][ T1] pci 0000:00:1f.0: [8086:2918] type 00 class 0x060100 [ 22.320352][ T1] pci 0000:00:1f.0: quirk: [io 0x0600-0x067f] claimed by ICH6 ACPI/GPIO/TCO [ 22.362876][ T1] pci 0000:00:1f.0: quirk_ich7_lpc+0x0/0x190 took 48828 usecs [ 22.438350][ T1] pci 0000:00:1f.2: [8086:2922] type 00 class 0x010601 [ 22.523620][ T1] pci 0000:00:1f.2: reg 0x20: [io 0xc720-0xc73f] [ 22.568518][ T1] pci 0000:00:1f.2: reg 0x24: [mem 0xfebf8000-0xfebf8fff] [ 22.644219][ T1] pci 0000:00:1f.3: [8086:2930] type 00 class 0x0c0500 [ 22.709056][ T1] pci 0000:00:1f.3: reg 0x20: [io 0x0700-0x073f] [ 22.871617][ T1] ACPI: PCI Interrupt Link [LNKA] (IRQs 5 *10 11) [ 22.913149][ T1] ACPI: PCI Interrupt Link [LNKB] (IRQs 5 *10 11) [ 22.948463][ T1] ACPI: PCI Interrupt Link [LNKC] (IRQs 5 10 *11) [ 22.988762][ T1] ACPI: PCI Interrupt Link [LNKD] (IRQs 5 10 *11) [ 23.017817][ T1] ACPI: PCI Interrupt Link [LNKE] (IRQs 5 *10 11) [ 23.047619][ T1] ACPI: PCI Interrupt Link [LNKF] (IRQs 5 *10 11) [ 23.088132][ T1] ACPI: PCI Interrupt Link [LNKG] (IRQs 5 10 *11) [ 23.118092][ T1] ACPI: PCI Interrupt Link [LNKH] (IRQs 5 10 *11) [ 23.155201][ T1] ACPI: PCI Interrupt Link [GSIA] (IRQs *16) [ 23.194663][ T1] ACPI: PCI Interrupt Link [GSIB] (IRQs *17) [ 23.214754][ T1] ACPI: PCI Interrupt Link [GSIC] (IRQs *18) [ 23.245000][ T1] ACPI: PCI Interrupt Link [GSID] (IRQs *19) [ 23.304805][ T1] ACPI: PCI Interrupt Link [GSIE] (IRQs *20) [ 23.354807][ T1] ACPI: PCI Interrupt Link [GSIF] (IRQs *21) [ 23.415196][ T1] ACPI: PCI Interrupt Link [GSIG] (IRQs *22) [ 23.464922][ T1] ACPI: PCI Interrupt Link [GSIH] (IRQs *23) [ 23.727723][ T1] iommu: Default domain type: Translated [ 23.811881][ T1] pci 0000:00:01.0: vgaarb: setting as boot VGA device [ 23.814020][ T1] pci 0000:00:01.0: vgaarb: VGA device added: decodes=io+mem,owns=io+mem,locks=none [ 23.814570][ T1] pci 0000:00:01.0: vgaarb: bridge control possible [ 23.824564][ T1] vgaarb: loaded [ 23.930583][ T1] SCSI subsystem initialized [ 23.970070][ T1] ACPI: bus type USB registered [ 23.982349][ T1] usbcore: registered new interface driver usbfs [ 23.988006][ T1] usbcore: registered new interface driver hub [ 23.996023][ T1] usbcore: registered new device driver usb [ 24.010037][ T1] mc: Linux media interface: v0.10 [ 24.014651][ T1] videodev: Linux video capture interface: v2.00 [ 24.032228][ T1] pps_core: LinuxPPS API ver. 1 registered [ 24.034352][ T1] pps_core: Software ver. 5.3.6 - Copyright 2005-2007 Rodolfo Giometti [ 24.064020][ T1] PTP clock support registered [ 24.088992][ T1] EDAC MC: Ver: 3.0.0 [ 24.135953][ T1] Advanced Linux Sound Architecture Driver Initialized. [ 24.182675][ T1] Bluetooth: Core ver 2.22 [ 24.186379][ T1] NET: Registered protocol family 31 [ 24.194202][ T1] Bluetooth: HCI device and connection manager initialized [ 24.205148][ T1] Bluetooth: HCI socket layer initialized [ 24.214409][ T1] Bluetooth: L2CAP socket layer initialized [ 24.224839][ T1] Bluetooth: SCO socket layer initialized [ 24.235179][ T1] NET: Registered protocol family 8 [ 24.244209][ T1] NET: Registered protocol family 20 [ 24.256603][ T1] NetLabel: Initializing [ 24.264257][ T1] NetLabel: domain hash size = 128 [ 24.274249][ T1] NetLabel: protocols = UNLABELED CIPSOv4 CALIPSO [ 24.292832][ T1] NetLabel: unlabeled traffic allowed by default [ 24.315066][ T1] nfc: nfc_init: NFC Core ver 0.1 [ 24.325938][ T1] NET: Registered protocol family 39 [ 24.335444][ T1] PCI: Using ACPI for IRQ routing [ 26.918665][ T1] hpet0: at MMIO 0xfed00000, IRQs 2, 8, 0 [ 26.945147][ T1] hpet0: 3 comparators, 64-bit 100.000000 MHz counter [ 27.018582][ T1] clocksource: Switched to clocksource kvm-clock [ 30.935024][ T1] VFS: Disk quotas dquot_6.6.0 [ 30.988781][ T1] VFS: Dquot-cache hash table entries: 512 (order 0, 4096 bytes) [ 31.062285][ T1] FS-Cache: Loaded [ 31.142819][ T1] CacheFiles: Loaded [ 31.179194][ T1] TOMOYO: 2.6.0 [ 31.199490][ T1] Mandatory Access Control activated. [ 31.262980][ T1] pnp: PnP ACPI init [ 31.447810][ T1] pnp: PnP ACPI: found 6 devices [ 32.342881][ T1] clocksource: acpi_pm: mask: 0xffffff max_cycles: 0xffffff, max_idle_ns: 2085701024 ns [ 32.561078][ T1] NET: Registered protocol family 2 [ 32.817409][ T1] tcp_listen_portaddr_hash hash table entries: 1024 (order: 4, 81920 bytes, vmalloc) [ 32.939828][ T1] TCP established hash table entries: 16384 (order: 5, 131072 bytes, vmalloc) [ 33.041811][ T1] TCP bind hash table entries: 16384 (order: 8, 1179648 bytes, vmalloc) [ 33.107246][ T1] TCP: Hash tables configured (established 16384 bind 16384) [ 33.205372][ T1] MPTCP token hash table entries: 2048 (order: 5, 180224 bytes, vmalloc) [ 33.299330][ T1] UDP hash table entries: 1024 (order: 5, 163840 bytes, vmalloc) [ 33.378426][ T1] UDP-Lite hash table entries: 1024 (order: 5, 163840 bytes, vmalloc) [ 33.466175][ T1] NET: Registered protocol family 1 [ 33.572701][ T1] RPC: Registered named UNIX socket transport module. [ 33.640301][ T1] RPC: Registered udp transport module. [ 33.683450][ T1] RPC: Registered tcp transport module. [ 33.725279][ T1] RPC: Registered tcp NFSv4.1 backchannel transport module. [ 33.813666][ T1] NET: Registered protocol family 44 [ 33.862370][ T1] pci_bus 0000:00: resource 4 [io 0x0000-0x0cf7 window] [ 33.904731][ T1] pci_bus 0000:00: resource 5 [io 0x0d00-0xffff window] [ 33.951562][ T1] pci_bus 0000:00: resource 6 [mem 0x000a0000-0x000bffff window] [ 34.015626][ T1] pci_bus 0000:00: resource 7 [mem 0x80000000-0xafffffff window] [ 34.091828][ T1] pci_bus 0000:00: resource 8 [mem 0xc0000000-0xfebfffff window] [ 34.155665][ T1] pci_bus 0000:00: resource 9 [mem 0x580000000-0xd7fffffff window] [ 34.252954][ T1] pci 0000:00:01.0: Video device with shadowed ROM at [mem 0x000c0000-0x000dffff] [ 34.326093][ T1] pci 0000:00:01.0: pci_fixup_video+0x0/0x270 took 78804 usecs [ 34.446746][ T1] PCI Interrupt Link [GSIA] enabled at IRQ 16 [ 34.683382][ T1] pci 0000:00:1d.0: quirk_usb_early_handoff+0x0/0x105b took 285620 usecs [ 34.798321][ T1] PCI Interrupt Link [GSIB] enabled at IRQ 17 [ 34.893436][ T1] pci 0000:00:1d.1: quirk_usb_early_handoff+0x0/0x105b took 112272 usecs [ 34.996824][ T1] PCI Interrupt Link [GSIC] enabled at IRQ 18 [ 35.072316][ T1] pci 0000:00:1d.2: quirk_usb_early_handoff+0x0/0x105b took 102488 usecs [ 35.151510][ T1] PCI Interrupt Link [GSID] enabled at IRQ 19 [ 35.236853][ T1] pci 0000:00:1d.7: quirk_usb_early_handoff+0x0/0x105b took 107331 usecs [ 35.287629][ T1] PCI: CLS 0 bytes, default 64 [ 35.368120][ T1] PCI-DMA: Using software bounce buffering for IO (SWIOTLB) [ 35.401841][ T1] software IO TLB: mapped [mem 0x7ac00000-0x7ec00000] (64MB) [ 35.493315][ T1] kvm: no hardware support [ 35.522633][ T1] has_svm: not amd or hygon [ 35.554637][ T1] kvm: no hardware support [ 35.583722][ T1] clocksource: tsc: mask: 0xffffffffffffffff max_cycles: 0x1cd4c92266a, max_idle_ns: 440795223404 ns [ 35.666440][ T1] clocksource: Switched to clocksource tsc [ 35.710214][ T1] mce: Machine check injector initialized [ 35.808809][ T1] check: Scanning for low memory corruption every 60 seconds [ 36.315013][ T1] Initialise system trusted keyrings [ 36.358529][ T1] workingset: timestamp_bits=40 max_order=19 bucket_order=0 [ 36.393867][ T1] zbud: loaded [ 36.455005][ T1] DLM installed [ 36.481755][ T1] squashfs: version 4.0 (2009/01/31) Phillip Lougher [ 36.536975][ T1] FS-Cache: Netfs 'nfs' registered for caching [ 36.581672][ T1] NFS: Registering the id_resolver key type [ 36.614966][ T1] Key type id_resolver registered [ 36.642731][ T1] Key type id_legacy registered [ 36.678592][ T1] nfs4filelayout_init: NFSv4 File Layout Driver Registering... [ 36.713258][ T1] Installing knfsd (copyright (C) 1996 okir@monad.swb.de). [ 36.787966][ T1] FS-Cache: Netfs 'cifs' registered for caching [ 36.835343][ T1] Key type cifs.spnego registered [ 36.855898][ T1] Key type cifs.idmap registered [ 36.878103][ T1] ntfs: driver 2.1.32 [Flags: R/W]. [ 36.913427][ T1] fuse: init (API version 7.31) [ 36.945243][ T1] JFS: nTxBlock = 8192, nTxLock = 65536 [ 37.110776][ T1] SGI XFS with ACLs, security attributes, realtime, quota, no debug enabled [ 37.186973][ T1] 9p: Installing v9fs 9p2000 file system support [ 37.212758][ T1] FS-Cache: Netfs '9p' registered for caching [ 37.235880][ T1] ocfs2: Registered cluster interface o2cb [ 37.255199][ T1] ocfs2: Registered cluster interface user [ 37.286156][ T1] OCFS2 User DLM kernel interface loaded [ 37.390917][ T1] gfs2: GFS2 installed [ 37.450302][ T1] FS-Cache: Netfs 'ceph' registered for caching [ 37.471967][ T1] ceph: loaded (mds proto 32) [ 37.549249][ T1] NET: Registered protocol family 38 [ 37.582389][ T1] async_tx: api initialized (async) [ 37.622587][ T1] Key type asymmetric registered [ 37.646995][ T1] Asymmetric key parser 'x509' registered [ 37.676000][ T1] Asymmetric key parser 'pkcs8' registered [ 37.706380][ T1] Key type pkcs7_test registered [ 37.726283][ T1] Asymmetric key parser 'tpm_parser' registered [ 37.756238][ T1] Block layer SCSI generic (bsg) driver version 0.4 loaded (major 243) [ 37.820401][ T1] io scheduler mq-deadline registered [ 37.857557][ T1] io scheduler kyber registered [ 37.897357][ T1] io scheduler bfq registered [ 38.011130][ T1] hgafb: HGA card not detected. [ 38.046556][ T1] hgafb: probe of hgafb.0 failed with error -22 [ 38.101005][ T1] usbcore: registered new interface driver udlfb [ 38.217064][ T1] uvesafb: failed to execute /sbin/v86d [ 38.275926][ T1] uvesafb: make sure that the v86d helper is installed and executable [ 38.359048][ T1] uvesafb: Getting VBE info block failed (eax=0x4f00, err=-2) [ 38.425348][ T1] uvesafb: vbe_init() failed with -22 [ 38.465832][ T1] uvesafb: probe of uvesafb.0 failed with error -22 [ 38.522961][ T1] vga16fb: mapped to 0x0000000030c93479 [ 69.123621][ T1] Console: switching to colour frame buffer device 80x30 [ 106.872315][ T1] fb0: VGA16 VGA frame buffer device [ 107.086673][ T1] input: Power Button as /devices/LNXSYSTM:00/LNXPWRBN:00/input/input0 [ 107.159872][ T1] ACPI: Power Button [PWRF] [ 107.472636][ T107] ================================================================== [ 107.477472][ T107] BUG: KASAN: global-out-of-bounds in internal_create_group+0x9d8/0xb20 [ 107.477472][ T107] Read of size 8 at addr ffffffff8a2e73d0 by task kworker/u17:5/107 [ 107.477472][ T107] [ 107.477472][ T107] CPU: 1 PID: 107 Comm: kworker/u17:5 Not tainted 5.9.0-rc1-syzkaller #0 [ 107.477472][ T107] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS rel-1.12.0-59-gc9ba5276e321-prebuilt.qemu.org 04/01/2014 [ 107.477472][ T107] Workqueue: events_unbound async_run_entry_fn [ 107.477472][ T107] Call Trace: [ 107.477472][ T107] dump_stack+0x18f/0x20d [ 107.477472][ T107] ? internal_create_group+0x9d8/0xb20 [ 107.477472][ T107] ? internal_create_group+0x9d8/0xb20 [ 107.477472][ T107] print_address_description.constprop.0.cold+0x5/0x497 [ 107.477472][ T107] ? vprintk_func+0x97/0x1a6 [ 107.477472][ T107] ? internal_create_group+0x9d8/0xb20 [ 107.477472][ T107] ? internal_create_group+0x9d8/0xb20 [ 107.477472][ T107] kasan_report.cold+0x1f/0x37 [ 107.477472][ T107] ? internal_create_group+0x9d8/0xb20 [ 107.477472][ T107] ? state_show+0xf0/0xf0 [ 107.477472][ T107] internal_create_group+0x9d8/0xb20 [ 107.477472][ T107] ? sysfs_remove_group+0x170/0x170 [ 107.477472][ T107] internal_create_groups.part.0+0x90/0x140 [ 107.477472][ T107] sysfs_create_groups+0x25/0x50 [ 107.477472][ T107] device_add+0x7fd/0x1c40 [ 107.477472][ T107] ? devlink_add_symlinks+0x450/0x450 [ 107.477472][ T107] ? lock_release+0x8e0/0x8e0 [ 107.477472][ T107] ? lock_downgrade+0x830/0x830 [ 107.477472][ T107] ? __schedule+0x88e/0x21e0 [ 107.477472][ T107] ? nd_synchronize+0x20/0x20 [ 107.477472][ T107] nd_async_device_register+0x12/0x80 [ 107.477472][ T107] async_run_entry_fn+0x121/0x530 [ 107.477472][ T107] process_one_work+0x94c/0x1670 [ 107.477472][ T107] ? lock_release+0x8e0/0x8e0 [ 107.477472][ T107] ? pwq_dec_nr_in_flight+0x2d0/0x2d0 [ 107.477472][ T107] ? rwlock_bug.part.0+0x90/0x90 [ 107.477472][ T107] worker_thread+0x64c/0x1120 [ 107.477472][ T107] ? process_one_work+0x1670/0x1670 [ 107.477472][ T107] kthread+0x3b5/0x4a0 [ 107.477472][ T107] ? __kthread_bind_mask+0xc0/0xc0 [ 107.477472][ T107] ? __kthread_bind_mask+0xc0/0xc0 [ 107.477472][ T107] ret_from_fork+0x1f/0x30 [ 107.477472][ T107] [ 107.477472][ T107] The buggy address belongs to the variable: [ 107.477472][ T107] nvdimm_firmware_attributes+0x10/0x40 [ 107.477472][ T107] [ 107.477472][ T107] Memory state around the buggy address: [ 107.477472][ T107] ffffffff8a2e7280: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 107.477472][ T107] ffffffff8a2e7300: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 107.477472][ T107] >ffffffff8a2e7380: 00 00 00 00 f9 f9 f9 f9 00 00 f9 f9 f9 f9 f9 f9 [ 107.477472][ T107] ^ [ 107.477472][ T107] ffffffff8a2e7400: 00 00 00 00 00 00 00 f9 f9 f9 f9 f9 00 00 00 00 [ 107.477472][ T107] ffffffff8a2e7480: 00 00 00 f9 f9 f9 f9 f9 00 00 00 00 00 00 00 f9 [ 107.477472][ T107] ================================================================== [ 107.477472][ T107] Disabling lock debugging due to kernel taint [ 108.387956][ T107] Kernel panic - not syncing: panic_on_warn set ... [ 108.395753][ T107] CPU: 1 PID: 107 Comm: kworker/u17:5 Tainted: G B 5.9.0-rc1-syzkaller #0 [ 108.395753][ T107] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS rel-1.12.0-59-gc9ba5276e321-prebuilt.qemu.org 04/01/2014 [ 108.525133][ T107] Workqueue: events_unbound async_run_entry_fn [ 108.525133][ T107] Call Trace: [ 108.525133][ T107] dump_stack+0x18f/0x20d [ 108.525133][ T107] ? internal_create_group+0x960/0xb20 [ 108.525133][ T107] panic+0x2e3/0x75c [ 108.525133][ T107] ? __warn_printk+0xf3/0xf3 [ 108.525133][ T107] ? preempt_schedule_common+0x59/0xc0 [ 108.525133][ T107] ? internal_create_group+0x9d8/0xb20 [ 108.525133][ T107] ? preempt_schedule_thunk+0x16/0x18 [ 108.525133][ T107] ? trace_hardirqs_on+0x55/0x220 [ 108.525133][ T107] ? internal_create_group+0x9d8/0xb20 [ 108.525133][ T107] ? internal_create_group+0x9d8/0xb20 [ 108.525133][ T107] end_report+0x4d/0x53 [ 108.525133][ T107] kasan_report.cold+0xd/0x37 [ 108.525133][ T107] ? internal_create_group+0x9d8/0xb20 [ 108.525133][ T107] ? state_show+0xf0/0xf0 [ 108.525133][ T107] internal_create_group+0x9d8/0xb20 [ 108.525133][ T107] ? sysfs_remove_group+0x170/0x170 [ 108.525133][ T107] internal_create_groups.part.0+0x90/0x140 [ 108.525133][ T107] sysfs_create_groups+0x25/0x50 [ 108.525133][ T107] device_add+0x7fd/0x1c40 [ 108.525133][ T107] ? devlink_add_symlinks+0x450/0x450 [ 108.525133][ T107] ? lock_release+0x8e0/0x8e0 [ 108.525133][ T107] ? lock_downgrade+0x830/0x830 [ 108.525133][ T107] ? __schedule+0x88e/0x21e0 [ 108.525133][ T107] ? nd_synchronize+0x20/0x20 [ 108.525133][ T107] nd_async_device_register+0x12/0x80 [ 108.525133][ T107] async_run_entry_fn+0x121/0x530 [ 108.525133][ T107] process_one_work+0x94c/0x1670 [ 108.525133][ T107] ? lock_release+0x8e0/0x8e0 [ 108.525133][ T107] ? pwq_dec_nr_in_flight+0x2d0/0x2d0 [ 108.525133][ T107] ? rwlock_bug.part.0+0x90/0x90 [ 108.525133][ T107] worker_thread+0x64c/0x1120 [ 108.525133][ T107] ? process_one_work+0x1670/0x1670 [ 108.525133][ T107] kthread+0x3b5/0x4a0 [ 108.525133][ T107] ? __kthread_bind_mask+0xc0/0xc0 [ 108.525133][ T107] ? __kthread_bind_mask+0xc0/0xc0 [ 108.525133][ T107] ret_from_fork+0x1f/0x30 [ 108.525133][ T107] Kernel Offset: disabled [ 108.525133][ T107] Rebooting in 86400 seconds..