[ 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=apparmor lsm=lockdown,yama,safesetid,integrity,tomoyo,apparmor,bpf ima_policy=tcb workqueue.watchdog_thresh=140 kvm-intel.nested=1 nf-conntrack-ftp.ports=20000 nf-conntrack-tftp.ports=20000 nf-conntrack-sip.ports=20000 nf-conntrack-irc.ports=20000 nf-conntrack-sane.ports=20000 vivid.n_devs=16 vivid.multiplanar=1,2,1,2,1,2,1,2,1,2,1,2,1,2,1,2 netrom.nr_ndevs=16 rose.rose_ndevs=16 spec_store_bypass_disable=prctl numa=fake=2 nopcid dummy_hcd.num=8 binder.debug_mask=0 rcupdate.rcu_expedited=1 [ 0.000000][ T0] KERNEL supported cpus: [ 0.000000][ T0] Intel GenuineIntel [ 0.000000][ T0] AMD AuthenticAMD [ 0.000000][ T0] Centaur CentaurHauls [ 0.000000][ T0] x86/fpu: Supporting XSAVE feature 0x001: 'x87 floating point registers' [ 0.000000][ T0] x86/fpu: Supporting XSAVE feature 0x002: 'SSE registers' [ 0.000000][ T0] x86/fpu: Supporting XSAVE feature 0x004: 'AVX registers' [ 0.000000][ T0] x86/fpu: Supporting XSAVE feature 0x020: 'AVX-512 opmask' [ 0.000000][ T0] x86/fpu: Supporting XSAVE feature 0x040: 'AVX-512 Hi256' [ 0.000000][ T0] x86/fpu: Supporting XSAVE feature 0x080: 'AVX-512 ZMM_Hi256' [ 0.000000][ T0] x86/fpu: xstate_offset[2]: 576, xstate_sizes[2]: 256 [ 0.000000][ T0] x86/fpu: xstate_offset[5]: 1088, xstate_sizes[5]: 64 [ 0.000000][ T0] x86/fpu: xstate_offset[6]: 1152, xstate_sizes[6]: 512 [ 0.000000][ T0] x86/fpu: xstate_offset[7]: 1664, xstate_sizes[7]: 1024 [ 0.000000][ T0] x86/fpu: Enabled xstate features 0xe7, context size is 2688 bytes, using 'standard' format. [ 0.000000][ T0] BIOS-provided physical RAM map: [ 0.000000][ T0] BIOS-e820: [mem 0x0000000000000000-0x000000000009fbff] usable [ 0.000000][ T0] BIOS-e820: [mem 0x000000000009fc00-0x000000000009ffff] reserved [ 0.000000][ T0] BIOS-e820: [mem 0x00000000000f0000-0x00000000000fffff] reserved [ 0.000000][ T0] BIOS-e820: [mem 0x0000000000100000-0x000000007ffdcfff] usable [ 0.000000][ T0] BIOS-e820: [mem 0x000000007ffdd000-0x000000007fffffff] reserved [ 0.000000][ T0] BIOS-e820: [mem 0x00000000b0000000-0x00000000bfffffff] reserved [ 0.000000][ T0] BIOS-e820: [mem 0x00000000fed1c000-0x00000000fed1ffff] reserved [ 0.000000][ T0] BIOS-e820: [mem 0x00000000feffc000-0x00000000feffffff] reserved [ 0.000000][ T0] BIOS-e820: [mem 0x00000000fffc0000-0x00000000ffffffff] reserved [ 0.000000][ T0] printk: bootconsole [earlyser0] enabled [ 0.000000][ T0] Malformed early option 'vsyscall' [ 0.000000][ T0] nopcid: PCID feature disabled [ 0.000000][ T0] NX (Execute Disable) protection: active [ 0.000000][ T0] SMBIOS 2.8 present. [ 0.000000][ T0] DMI: QEMU Standard PC (Q35 + ICH9, 2009), BIOS rel-1.12.0-59-gc9ba5276e321-prebuilt.qemu.org 04/01/2014 [ 0.000000][ T0] Hypervisor detected: KVM [ 0.000000][ T0] kvm-clock: Using msrs 4b564d01 and 4b564d00 [ 0.000242][ T0] kvm-clock: cpu 0, msr becf001, primary cpu clock [ 0.000243][ T0] kvm-clock: using sched offset of 29852576916 cycles [ 0.052606][ T0] clocksource: kvm-clock: mask: 0xffffffffffffffff max_cycles: 0x1cd42e4dffb, max_idle_ns: 881590591483 ns [ 0.188375][ T0] tsc: Detected 2000.164 MHz processor [ 0.300178][ T0] last_pfn = 0x7ffdd max_arch_pfn = 0x400000000 [ 0.382041][ T0] x86/PAT: Configuration [0-7]: WB WC UC- UC WB WP UC- WT [ 0.482848][ T0] found SMP MP-table at [mem 0x000f5a50-0x000f5a5f] [ 0.580998][ T0] check: Scanning 1 areas for low memory corruption [ 0.685907][ T0] ACPI: Early table checksum verification disabled [ 0.744704][ T0] ACPI: RSDP 0x00000000000F5880 000014 (v00 BOCHS ) [ 0.791887][ T0] ACPI: RSDT 0x000000007FFE1F9D 000040 (v01 BOCHS BXPCRSDT 00000001 BXPC 00000001) [ 0.881442][ T0] ACPI: FACP 0x000000007FFE1860 0000F4 (v03 BOCHS BXPCFACP 00000001 BXPC 00000001) [ 0.979324][ T0] ACPI: DSDT 0x000000007FFDF040 002820 (v01 BOCHS BXPCDSDT 00000001 BXPC 00000001) [ 1.061238][ T0] ACPI: FACS 0x000000007FFDF000 000040 [ 1.107935][ T0] ACPI: APIC 0x000000007FFE1954 0000B0 (v01 BOCHS BXPCAPIC 00000001 BXPC 00000001) [ 1.198096][ T0] ACPI: HPET 0x000000007FFE1A04 000038 (v01 BOCHS BXPCHPET 00000001 BXPC 00000001) [ 1.294978][ T0] ACPI: SRAT 0x000000007FFE1A3C 000178 (v01 BOCHS BXPCSRAT 00000001 BXPC 00000001) [ 1.381550][ T0] ACPI: MCFG 0x000000007FFE1BB4 00003C (v01 BOCHS BXPCMCFG 00000001 BXPC 00000001) [ 1.465762][ T0] ACPI: SSDT 0x000000007FFE1BF0 0002CD (v01 BOCHS NVDIMM 00000001 BXPC 00000001) [ 1.547066][ T0] ACPI: NFIT 0x000000007FFE1EBD 0000E0 (v01 BOCHS BXPCNFIT 00000001 BXPC 00000001) [ 1.639863][ T0] SRAT: PXM 0 -> APIC 0x00 -> Node 0 [ 1.692032][ T0] SRAT: PXM 0 -> APIC 0x01 -> Node 0 [ 1.736481][ T0] SRAT: PXM 0 -> APIC 0x02 -> Node 0 [ 1.783730][ T0] SRAT: PXM 0 -> APIC 0x03 -> Node 0 [ 1.888175][ T0] SRAT: PXM 1 -> APIC 0x04 -> Node 1 [ 1.940803][ T0] SRAT: PXM 1 -> APIC 0x05 -> Node 1 [ 1.983824][ T0] SRAT: PXM 1 -> APIC 0x06 -> Node 1 [ 2.028629][ T0] SRAT: PXM 1 -> APIC 0x07 -> Node 1 [ 2.079349][ T0] ACPI: SRAT: Node 0 PXM 0 [mem 0x00000000-0x0009ffff] [ 2.130250][ T0] ACPI: SRAT: Node 0 PXM 0 [mem 0x00100000-0x3fffffff] [ 2.172273][ T0] ACPI: SRAT: Node 1 PXM 1 [mem 0x40000000-0x7fffffff] [ 2.215100][ T0] ACPI: SRAT: Node 1 PXM 1 [mem 0x100000000-0x57fffffff] hotplug [ 2.277534][ T0] NUMA: Node 0 [mem 0x00000000-0x0009ffff] + [mem 0x00100000-0x3fffffff] -> [mem 0x00000000-0x3fffffff] [ 2.395705][ T0] Faking node 0 at [mem 0x0000000000000000-0x000000003fffffff] (1024MB) [ 2.469774][ T0] Faking node 1 at [mem 0x0000000040000000-0x000000007ffdcfff] (1023MB) [ 2.538113][ T0] NODE_DATA(0) allocated [mem 0x3fffb000-0x3fffffff] [ 2.625694][ T0] NODE_DATA(1) allocated [mem 0x7ffd7000-0x7ffdbfff] [ 2.991884][ T0] Zone ranges: [ 3.023029][ T0] DMA [mem 0x0000000000001000-0x0000000000ffffff] [ 3.077077][ T0] DMA32 [mem 0x0000000001000000-0x000000007ffdcfff] [ 3.142496][ T0] Normal empty [ 3.181257][ T0] Device empty [ 3.213446][ T0] Movable zone start for each node [ 3.251344][ T0] Early memory node ranges [ 3.285929][ T0] node 0: [mem 0x0000000000001000-0x000000000009efff] [ 3.355237][ T0] node 0: [mem 0x0000000000100000-0x000000003fffffff] [ 3.415662][ T0] node 1: [mem 0x0000000040000000-0x000000007ffdcfff] [ 3.486546][ T0] Zeroed struct page in unavailable ranges: 133 pages [ 3.486914][ T0] Initmem setup node 0 [mem 0x0000000000001000-0x000000003fffffff] [ 3.763349][ T0] Initmem setup node 1 [mem 0x0000000040000000-0x000000007ffdcfff] [ 8.393202][ T0] kasan: KernelAddressSanitizer initialized [ 8.466848][ T0] ACPI: PM-Timer IO Port: 0x608 [ 8.496431][ T0] ACPI: LAPIC_NMI (acpi_id[0xff] dfl dfl lint[0x1]) [ 8.554803][ T0] IOAPIC[0]: apic_id 0, version 17, address 0xfec00000, GSI 0-23 [ 8.597338][ T0] ACPI: INT_SRC_OVR (bus 0 bus_irq 0 global_irq 2 dfl dfl) [ 8.641032][ T0] ACPI: INT_SRC_OVR (bus 0 bus_irq 5 global_irq 5 high level) [ 8.690878][ T0] ACPI: INT_SRC_OVR (bus 0 bus_irq 9 global_irq 9 high level) [ 8.742595][ T0] ACPI: INT_SRC_OVR (bus 0 bus_irq 10 global_irq 10 high level) [ 8.801394][ T0] ACPI: INT_SRC_OVR (bus 0 bus_irq 11 global_irq 11 high level) [ 8.853386][ T0] Using ACPI (MADT) for SMP configuration information [ 8.904806][ T0] ACPI: HPET id: 0x8086a201 base: 0xfed00000 [ 8.947785][ T0] TSC deadline timer available [ 8.975267][ T0] smpboot: Allowing 8 CPUs, 4 hotplug CPUs [ 9.023794][ T0] kvm-guest: KVM setup pv remote TLB flush [ 9.092915][ T0] PM: hibernation: Registered nosave memory: [mem 0x00000000-0x00000fff] [ 9.166277][ T0] PM: hibernation: Registered nosave memory: [mem 0x0009f000-0x0009ffff] [ 9.252550][ T0] PM: hibernation: Registered nosave memory: [mem 0x000a0000-0x000effff] [ 9.307927][ T0] PM: hibernation: Registered nosave memory: [mem 0x000f0000-0x000fffff] [ 9.371540][ T0] [mem 0xc0000000-0xfed1bfff] available for PCI devices [ 9.422960][ T0] Booting paravirtualized kernel on KVM [ 9.474360][ T0] clocksource: refined-jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604462750000 ns [ 9.628054][ T0] setup_percpu: NR_CPUS:64 nr_cpumask_bits:64 nr_cpu_ids:8 nr_node_ids:2 [ 9.751665][ T0] percpu: Embedded 65 pages/cpu s226696 r8192 d31352 u1048576 [ 9.801000][ T0] kvm-guest: stealtime: cpu 0, msr 2ce20a40 [ 9.862508][ T0] kvm-guest: PV spinlocks enabled [ 9.904229][ T0] PV qspinlock hash table entries: 256 (order: 0, 4096 bytes, linear) [ 9.984264][ T0] Built 2 zonelists, mobility grouping on. Total pages: 515942 [ 10.030347][ T0] Policy zone: DMA32 [ 10.058536][ T0] Kernel command line: BOOT_IMAGE=/vmlinuz root=/dev/sda1 console=ttyS0 earlyprintk=serial vsyscall=native rodata=n oops=panic panic_on_warn=1 nmi_watchdog=panic panic=86400 net.ifnames=0 sysctl.kernel.hung_task_all_cpu_backtrace=1 security=apparmor lsm=lockdown,yama,safesetid,integrity,tomoyo,apparmor,bpf ima_policy=tcb workqueue.watchdog_thresh=140 kvm-intel.nested=1 nf-conntrack-ftp.ports=20000 nf-conntrack-tftp.ports=20000 nf-conntrack-sip.ports=20000 nf-conntrack-irc.ports=20000 nf-conntrack-sane.ports=20000 vivid.n_devs=16 vivid.multiplanar=1,2,1,2,1,2,1,2,1,2,1,2,1,2,1,2 netrom.nr_ndevs=16 rose.rose_ndevs=16 spec_store_bypass_disable=prctl numa=fake=2 nopcid dummy_hcd.num=8 binder.debug_mask=0 rcupdate.rcu_expedited=1 [ 10.608163][ T0] mem auto-init: stack:off, heap alloc:on, heap free:off [ 11.576521][ T0] Memory: 1503356K/2096620K available (116743K kernel code, 17674K rwdata, 21636K rodata, 2792K init, 23936K bss, 593008K reserved, 0K cma-reserved) [ 11.782605][ T0] Running RCU self tests [ 11.797012][ T0] rcu: Preemptible hierarchical RCU implementation. [ 11.816465][ T0] rcu: RCU lockdep checking is enabled. [ 11.832361][ T0] rcu: RCU restricting CPUs from NR_CPUS=64 to nr_cpu_ids=8. [ 11.854312][ T0] rcu: RCU callback double-/use-after-free debug enabled. [ 11.875888][ T0] rcu: RCU debug extended QS entry/exit. [ 11.894069][ T0] All grace periods are expedited (rcu_expedited). [ 11.911028][ T0] Trampoline variant of Tasks RCU enabled. [ 11.929800][ T0] rcu: RCU calculated value of scheduler-enlistment delay is 10 jiffies. [ 11.972417][ T0] rcu: Adjusting geometry for rcu_fanout_leaf=16, nr_cpu_ids=8 [ 12.045532][ T0] NR_IRQS: 4352, nr_irqs: 488, preallocated irqs: 16 [ 12.152268][ T0] random: get_random_bytes called from start_kernel+0x23b/0x46a with crng_init=0 [ 12.543094][ T0] Console: colour VGA+ 80x25 [ 12.598523][ T0] printk: console [ttyS0] enabled [ 12.598523][ T0] printk: console [ttyS0] enabled [ 12.639244][ T0] printk: bootconsole [earlyser0] disabled [ 12.639244][ T0] printk: bootconsole [earlyser0] disabled [ 12.664168][ T0] Lock dependency validator: Copyright (c) 2006 Red Hat, Inc., Ingo Molnar [ 12.683726][ T0] ... MAX_LOCKDEP_SUBCLASSES: 8 [ 12.693780][ T0] ... MAX_LOCK_DEPTH: 48 [ 12.704718][ T0] ... MAX_LOCKDEP_KEYS: 8192 [ 12.717024][ T0] ... CLASSHASH_SIZE: 4096 [ 12.729006][ T0] ... MAX_LOCKDEP_ENTRIES: 32768 [ 12.745013][ T0] ... MAX_LOCKDEP_CHAINS: 65536 [ 12.764672][ T0] ... CHAINHASH_SIZE: 32768 [ 12.779607][ T0] memory used by lock dependency info: 6301 kB [ 12.799291][ T0] memory used for stack traces: 4224 kB [ 12.822831][ T0] per task-struct memory footprint: 1920 bytes [ 12.859857][ T0] mempolicy: Enabling automatic NUMA balancing. Configure with numa_balancing= or the kernel.numa_balancing sysctl [ 12.910393][ T0] ACPI: Core revision 20200717 [ 12.946025][ T0] clocksource: hpet: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604467 ns [ 12.990542][ T0] APIC: Switch to symmetric I/O mode setup [ 13.013148][ T0] x2apic enabled [ 13.037086][ T0] Switched APIC routing to physical x2apic. [ 13.053231][ T0] kvm-guest: setup PV IPIs [ 13.174135][ T0] ..TIMER: vector=0x30 apic1=0 pin1=2 apic2=-1 pin2=-1 [ 13.229295][ T0] clocksource: tsc-early: mask: 0xffffffffffffffff max_cycles: 0x1cd4c92266a, max_idle_ns: 440795223404 ns [ 13.295470][ T0] Calibrating delay loop (skipped) preset value.. 4000.32 BogoMIPS (lpj=20001640) [ 13.311817][ T0] pid_max: default: 32768 minimum: 301 [ 13.337599][ T0] LSM: Security Framework initializing [ 13.340918][ T0] LSM: security= is ignored because it is superseded by lsm= [ 13.360696][ T0] Yama: becoming mindful. [ 13.387647][ T0] TOMOYO Linux initialized [ 13.408895][ T0] AppArmor: AppArmor initialized [ 13.410785][ T0] LSM support for eBPF active [ 13.451478][ T0] Dentry cache hash table entries: 262144 (order: 9, 2097152 bytes, vmalloc) [ 13.495638][ T0] Inode-cache hash table entries: 131072 (order: 8, 1048576 bytes, vmalloc) [ 13.512651][ T0] Mount-cache hash table entries: 4096 (order: 3, 32768 bytes, vmalloc) [ 13.521377][ T0] Mountpoint-cache hash table entries: 4096 (order: 3, 32768 bytes, vmalloc) [ 13.788772][ T0] x86/cpu: User Mode Instruction Prevention (UMIP) activated [ 13.843753][ T0] Last level iTLB entries: 4KB 0, 2MB 0, 4MB 0 [ 13.850630][ T0] Last level dTLB entries: 4KB 0, 2MB 0, 4MB 0, 1GB 0 [ 13.864248][ T0] Spectre V1 : Mitigation: usercopy/swapgs barriers and __user pointer sanitization [ 13.871404][ T0] Spectre V2 : Spectre mitigation: kernel not compiled with retpoline; no mitigation available! [ 13.872168][ T0] Speculative Store Bypass: Mitigation: Speculative Store Bypass disabled via prctl [ 13.904512][ T0] TAA: Mitigation: Clear CPU buffers [ 13.910675][ T0] MDS: Mitigation: Clear CPU buffers [ 14.172937][ T0] Freeing SMP alternatives memory: 104K [ 14.779372][ T1] smpboot: CPU0: Intel(R) Xeon(R) CPU @ 2.00GHz (family: 0x6, model: 0x55, stepping: 0x3) [ 14.863320][ T1] Performance Events: unsupported p6 CPU model 85 no PMU driver, software events only. [ 14.898523][ T1] rcu: Hierarchical SRCU implementation. [ 14.939781][ T1] dyndbg: Ignore empty _ddebug table in a CONFIG_DYNAMIC_DEBUG_CORE build [ 14.967558][ T1] NMI watchdog: Perf NMI watchdog permanently disabled [ 15.035654][ T1] smp: Bringing up secondary CPUs ... [ 15.097578][ T1] x86: Booting SMP configuration: [ 15.101954][ T1] .... node #0, CPUs: #1 [ 1.075096][ T0] kvm-clock: cpu 1, msr becf041, secondary cpu clock [ 15.232034][ T15] kvm-guest: stealtime: cpu 1, msr 2cf20a40 [ 15.284008][ 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. [ 15.294531][ 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. [ 15.344727][ T1] #2 [ 1.075096][ T0] kvm-clock: cpu 2, msr becf081, secondary cpu clock [ 15.434335][ T20] kvm-guest: stealtime: cpu 2, msr 2d020a40 [ 15.494615][ T1] #3 [ 1.075096][ T0] kvm-clock: cpu 3, msr becf0c1, secondary cpu clock [ 15.595894][ T25] kvm-guest: stealtime: cpu 3, msr 2d120a40 [ 15.632614][ T1] smp: Brought up 2 nodes, 4 CPUs [ 15.641025][ T1] smpboot: Max logical packages: 2 [ 15.650774][ T1] smpboot: Total of 4 processors activated (16001.31 BogoMIPS) [ 15.731712][ T1] devtmpfs: initialized [ 15.778619][ T1] x86/mm: Memory block size: 128MB [ 15.962956][ T1] clocksource: jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604462750000 ns [ 16.026801][ T33] kworker/u17:0 (33) used greatest stack depth: 27656 bytes left [ 16.064116][ T1] futex hash table entries: 2048 (order: 6, 262144 bytes, vmalloc) [ 16.253089][ T1] xor: automatically using best checksumming function avx [ 16.345146][ T1] PM: RTC time: 18:04:02, date: 2020-08-21 [ 16.447612][ T1] NET: Registered protocol family 16 [ 16.515569][ T1] audit: initializing netlink subsys (disabled) [ 16.592767][ T41] audit: type=2000 audit(1598033040.862:1): state=initialized audit_enabled=0 res=1 [ 16.660213][ T1] thermal_sys: Registered thermal governor 'step_wise' [ 16.660367][ T1] thermal_sys: Registered thermal governor 'user_space' [ 16.760683][ T1] cpuidle: using governor menu [ 16.887083][ T1] NET: Registered protocol family 42 [ 16.990615][ T1] ACPI: bus type PCI registered [ 17.075660][ T1] dca service started, version 1.12.1 [ 17.147419][ T1] PCI: MMCONFIG for domain 0000 [bus 00-ff] at [mem 0xb0000000-0xbfffffff] (base 0xb0000000) [ 17.252779][ T1] PCI: MMCONFIG at [mem 0xb0000000-0xbfffffff] reserved in E820 [ 17.698544][ T1] PCI: Using configuration type 1 for base access [ 17.822812][ T91] kworker/u17:1 (91) used greatest stack depth: 27608 bytes left [ 17.937225][ T251] kworker/u17:0 (251) used greatest stack depth: 27544 bytes left [ 17.991073][ T258] kworker/u17:0 (258) used greatest stack depth: 27472 bytes left [ 18.667360][ T1] HugeTLB registered 2.00 MiB page size, pre-allocated 0 pages [ 18.994817][ T1] cryptd: max_cpu_qlen set to 1000 [ 19.431618][ T1] raid6: avx512x4 gen() 11868 MB/s [ 19.649298][ T1] raid6: avx512x4 xor() 4308 MB/s [ 19.880090][ T1] raid6: avx512x2 gen() 8309 MB/s [ 20.088175][ T1] raid6: avx512x2 xor() 4174 MB/s [ 20.310710][ T1] raid6: avx512x1 gen() 5743 MB/s [ 20.505443][ T1] raid6: avx512x1 xor() 2268 MB/s [ 20.703351][ T1] raid6: avx2x4 gen() 6716 MB/s [ 20.902315][ T1] raid6: avx2x4 xor() 3716 MB/s [ 21.108893][ T1] raid6: avx2x2 gen() 4550 MB/s [ 21.310672][ T1] raid6: avx2x2 xor() 2292 MB/s [ 21.499146][ T1] raid6: avx2x1 gen() 2660 MB/s [ 21.673421][ T1] raid6: avx2x1 xor() 1101 MB/s [ 21.874249][ T1] raid6: sse2x4 gen() 4107 MB/s [ 22.070978][ T1] raid6: sse2x4 xor() 2264 MB/s [ 22.290635][ T1] raid6: sse2x2 gen() 2563 MB/s [ 22.467264][ T1] raid6: sse2x2 xor() 1282 MB/s [ 22.656162][ T1] raid6: sse2x1 gen() 1610 MB/s [ 22.844683][ T1] raid6: sse2x1 xor() 649 MB/s [ 22.870774][ T1] raid6: using algorithm avx512x4 gen() 11868 MB/s [ 22.930869][ T1] raid6: .... xor() 4308 MB/s, rmw enabled [ 22.951645][ T1] raid6: using avx512x2 recovery algorithm [ 23.012909][ T1] ACPI: Added _OSI(Module Device) [ 23.050892][ T1] ACPI: Added _OSI(Processor Device) [ 23.081015][ T1] ACPI: Added _OSI(3.0 _SCP Extensions) [ 23.110898][ T1] ACPI: Added _OSI(Processor Aggregator Device) [ 23.151172][ T1] ACPI: Added _OSI(Linux-Dell-Video) [ 23.181543][ T1] ACPI: Added _OSI(Linux-Lenovo-NV-HDMI-Audio) [ 23.210910][ T1] ACPI: Added _OSI(Linux-HPI-Hybrid-Graphics) [ 23.368898][ T1] ACPI: 2 ACPI AML tables successfully acquired and loaded [ 23.555321][ T1] ACPI: Interpreter enabled [ 23.607498][ T1] ACPI: (supports S0 S3 S4 S5) [ 23.632617][ T1] ACPI: Using IOAPIC for interrupt routing [ 23.702706][ T1] PCI: Using host bridge windows from ACPI; if necessary, use "pci=nocrs" and report a bug [ 23.800615][ T1] ACPI: Enabled 3 GPEs in block 00 to 3F [ 24.197160][ T1] ACPI: PCI Root Bridge [PCI0] (domain 0000 [bus 00-ff]) [ 24.245274][ T1] acpi PNP0A08:00: _OSC: OS supports [ExtendedConfig ASPM ClockPM Segments MSI HPX-Type3] [ 24.352554][ T1] acpi PNP0A08:00: _OSC: platform does not support [LTR] [ 24.385924][ T1] acpi PNP0A08:00: _OSC: OS now controls [PCIeHotplug PME AER PCIeCapability] [ 24.456278][ T1] PCI host bridge to bus 0000:00 [ 24.480871][ T1] pci_bus 0000:00: Unknown NUMA node; performance will be reduced [ 24.531455][ T1] pci_bus 0000:00: root bus resource [io 0x0000-0x0cf7 window] [ 24.580822][ T1] pci_bus 0000:00: root bus resource [io 0x0d00-0xffff window] [ 24.621865][ T1] pci_bus 0000:00: root bus resource [mem 0x000a0000-0x000bffff window] [ 24.670952][ T1] pci_bus 0000:00: root bus resource [mem 0x80000000-0xafffffff window] [ 24.710815][ T1] pci_bus 0000:00: root bus resource [mem 0xc0000000-0xfebfffff window] [ 24.751301][ T1] pci_bus 0000:00: root bus resource [mem 0x580000000-0xd7fffffff window] [ 24.791094][ T1] pci_bus 0000:00: root bus resource [bus 00-ff] [ 24.829382][ T1] pci 0000:00:00.0: [8086:29c0] type 00 class 0x060000 [ 24.906759][ T1] pci 0000:00:01.0: [1234:1111] type 00 class 0x030000 [ 25.000615][ T1] pci 0000:00:01.0: reg 0x10: [mem 0xfd000000-0xfdffffff pref] [ 25.110615][ T1] pci 0000:00:01.0: reg 0x18: [mem 0xfebf8000-0xfebf8fff] [ 25.320615][ T1] pci 0000:00:01.0: reg 0x30: [mem 0xfebe0000-0xfebeffff pref] [ 25.619213][ T1] pci 0000:00:02.0: [8086:10d3] type 00 class 0x020000 [ 25.674910][ T1] pci 0000:00:02.0: reg 0x10: [mem 0xfeb80000-0xfeb9ffff] [ 25.752432][ T1] pci 0000:00:02.0: reg 0x14: [mem 0xfeba0000-0xfebbffff] [ 25.801980][ T1] pci 0000:00:02.0: reg 0x18: [io 0xc680-0xc69f] [ 25.890615][ T1] pci 0000:00:02.0: reg 0x1c: [mem 0xfebf0000-0xfebf3fff] [ 25.961887][ T1] pci 0000:00:02.0: reg 0x30: [mem 0xfeb00000-0xfeb3ffff pref] [ 26.250615][ T1] pci 0000:00:03.0: [8086:100e] type 00 class 0x020000 [ 26.275260][ T1] pci 0000:00:03.0: reg 0x10: [mem 0xfebc0000-0xfebdffff] [ 26.289399][ T1] pci 0000:00:03.0: reg 0x14: [io 0xc600-0xc63f] [ 26.317900][ T1] pci 0000:00:03.0: reg 0x30: [mem 0xfeb40000-0xfeb7ffff pref] [ 26.369997][ T1] pci 0000:00:04.0: [1274:5000] type 00 class 0x040100 [ 26.379457][ T1] pci 0000:00:04.0: reg 0x10: [io 0xc400-0xc4ff] [ 26.431774][ T1] pci 0000:00:05.0: [8086:2415] type 00 class 0x040100 [ 26.444444][ T1] pci 0000:00:05.0: reg 0x10: [io 0xc000-0xc3ff] [ 26.454316][ T1] pci 0000:00:05.0: reg 0x14: [io 0xc500-0xc5ff] [ 26.492812][ T1] pci 0000:00:06.0: [8086:2668] type 00 class 0x040300 [ 26.508413][ T1] pci 0000:00:06.0: reg 0x10: [mem 0xfebf4000-0xfebf7fff] [ 26.566928][ T1] pci 0000:00:07.0: [1af4:1009] type 00 class 0x000200 [ 26.576146][ T1] pci 0000:00:07.0: reg 0x10: [io 0xc6a0-0xc6bf] [ 26.586426][ T1] pci 0000:00:07.0: reg 0x14: [mem 0xfebf9000-0xfebf9fff] [ 26.602068][ T1] pci 0000:00:07.0: reg 0x20: [mem 0xfe000000-0xfe003fff 64bit pref] [ 26.649435][ T1] pci 0000:00:1d.0: [8086:2934] type 00 class 0x0c0300 [ 26.667936][ T1] pci 0000:00:1d.0: reg 0x20: [io 0xc6c0-0xc6df] [ 26.700912][ T1] pci 0000:00:1d.1: [8086:2935] type 00 class 0x0c0300 [ 26.738392][ T1] pci 0000:00:1d.1: reg 0x20: [io 0xc6e0-0xc6ff] [ 26.760446][ T1] pci 0000:00:1d.2: [8086:2936] type 00 class 0x0c0300 [ 26.777106][ T1] pci 0000:00:1d.2: reg 0x20: [io 0xc700-0xc71f] [ 26.801049][ T1] pci 0000:00:1d.7: [8086:293a] type 00 class 0x0c0320 [ 26.818007][ T1] pci 0000:00:1d.7: reg 0x10: [mem 0xfebfa000-0xfebfafff] [ 26.849536][ T1] pci 0000:00:1f.0: [8086:2918] type 00 class 0x060100 [ 26.890103][ T1] pci 0000:00:1f.0: quirk: [io 0x0600-0x067f] claimed by ICH6 ACPI/GPIO/TCO [ 26.913796][ T1] pci 0000:00:1f.2: [8086:2922] type 00 class 0x010601 [ 26.952233][ T1] pci 0000:00:1f.2: reg 0x20: [io 0xc720-0xc73f] [ 26.965231][ T1] pci 0000:00:1f.2: reg 0x24: [mem 0xfebfb000-0xfebfbfff] [ 27.007343][ T1] pci 0000:00:1f.3: [8086:2930] type 00 class 0x0c0500 [ 27.039067][ T1] pci 0000:00:1f.3: reg 0x20: [io 0x0700-0x073f] [ 27.468390][ T1] ACPI: PCI Interrupt Link [LNKA] (IRQs 5 *10 11) [ 27.548301][ T1] ACPI: PCI Interrupt Link [LNKB] (IRQs 5 *10 11) [ 27.618075][ T1] ACPI: PCI Interrupt Link [LNKC] (IRQs 5 10 *11) [ 27.694243][ T1] ACPI: PCI Interrupt Link [LNKD] (IRQs 5 10 *11) [ 27.733984][ T1] ACPI: PCI Interrupt Link [LNKE] (IRQs 5 *10 11) [ 27.774852][ T1] ACPI: PCI Interrupt Link [LNKF] (IRQs 5 *10 11) [ 27.817094][ T1] ACPI: PCI Interrupt Link [LNKG] (IRQs 5 10 *11) [ 27.888480][ T1] ACPI: PCI Interrupt Link [LNKH] (IRQs 5 10 *11) [ 27.943434][ T1] ACPI: PCI Interrupt Link [GSIA] (IRQs *16) [ 27.982040][ T1] ACPI: PCI Interrupt Link [GSIB] (IRQs *17) [ 28.021455][ T1] ACPI: PCI Interrupt Link [GSIC] (IRQs *18) [ 28.061625][ T1] ACPI: PCI Interrupt Link [GSID] (IRQs *19) [ 28.111296][ T1] ACPI: PCI Interrupt Link [GSIE] (IRQs *20) [ 28.163208][ T1] ACPI: PCI Interrupt Link [GSIF] (IRQs *21) [ 28.221884][ T1] ACPI: PCI Interrupt Link [GSIG] (IRQs *22) [ 28.261585][ T1] ACPI: PCI Interrupt Link [GSIH] (IRQs *23) [ 28.560615][ T1428] kworker/u17:9 (1428) used greatest stack depth: 27424 bytes left [ 28.579082][ T1] iommu: Default domain type: Translated [ 28.750615][ T1] pci 0000:00:01.0: vgaarb: setting as boot VGA device [ 28.750615][ T1] pci 0000:00:01.0: vgaarb: VGA device added: decodes=io+mem,owns=io+mem,locks=none [ 28.751412][ T1] pci 0000:00:01.0: vgaarb: bridge control possible [ 28.760816][ T1] vgaarb: loaded [ 28.913675][ T1] SCSI subsystem initialized [ 29.005572][ T1] ACPI: bus type USB registered [ 29.063597][ T1] usbcore: registered new interface driver usbfs [ 29.131125][ T1] usbcore: registered new interface driver hub [ 29.186977][ T1] usbcore: registered new device driver usb [ 29.241060][ T1] mc: Linux media interface: v0.10 [ 29.321500][ T1] videodev: Linux video capture interface: v2.00 [ 29.397025][ T1] pps_core: LinuxPPS API ver. 1 registered [ 29.440943][ T1] pps_core: Software ver. 5.3.6 - Copyright 2005-2007 Rodolfo Giometti [ 29.532193][ T1] PTP clock support registered [ 29.609282][ T1] EDAC MC: Ver: 3.0.0 [ 29.777605][ T1] Advanced Linux Sound Architecture Driver Initialized. [ 30.009416][ T1] Bluetooth: Core ver 2.22 [ 30.054008][ T1] NET: Registered protocol family 31 [ 30.091424][ T1] Bluetooth: HCI device and connection manager initialized [ 30.153780][ T1] Bluetooth: HCI socket layer initialized [ 30.201022][ T1] Bluetooth: L2CAP socket layer initialized [ 30.253307][ T1] Bluetooth: SCO socket layer initialized [ 30.315565][ T1] NET: Registered protocol family 8 [ 30.351188][ T1] NET: Registered protocol family 20 [ 30.410362][ T1] NetLabel: Initializing [ 30.441063][ T1] NetLabel: domain hash size = 128 [ 30.490885][ T1] NetLabel: protocols = UNLABELED CIPSOv4 CALIPSO [ 30.560615][ T1] NetLabel: unlabeled traffic allowed by default [ 30.680156][ T1] nfc: nfc_init: NFC Core ver 0.1 [ 30.750093][ T1] NET: Registered protocol family 39 [ 30.809237][ T1] PCI: Using ACPI for IRQ routing [ 33.573590][ T1] hpet0: at MMIO 0xfed00000, IRQs 2, 8, 0 [ 33.590776][ T1] hpet0: 3 comparators, 64-bit 100.000000 MHz counter [ 33.632617][ T1] clocksource: Switched to clocksource kvm-clock [ 37.724780][ T1] VFS: Disk quotas dquot_6.6.0 [ 37.756237][ T1] VFS: Dquot-cache hash table entries: 512 (order 0, 4096 bytes) [ 37.815021][ T1] FS-Cache: Loaded [ 37.857945][ T1] CacheFiles: Loaded [ 37.924222][ T1] TOMOYO: 2.6.0 [ 37.947538][ T1] Mandatory Access Control activated. [ 38.006839][ T1] AppArmor: AppArmor Filesystem Enabled [ 38.061934][ T1] pnp: PnP ACPI init [ 38.159158][ T1] pnp: PnP ACPI: found 6 devices [ 38.409077][ T1] clocksource: acpi_pm: mask: 0xffffff max_cycles: 0xffffff, max_idle_ns: 2085701024 ns [ 38.473721][ T1] NET: Registered protocol family 2 [ 38.588199][ T1] tcp_listen_portaddr_hash hash table entries: 1024 (order: 4, 81920 bytes, vmalloc) [ 38.660087][ T1] TCP established hash table entries: 16384 (order: 5, 131072 bytes, vmalloc) [ 38.728352][ T1] TCP bind hash table entries: 16384 (order: 8, 1179648 bytes, vmalloc) [ 38.783593][ T1] TCP: Hash tables configured (established 16384 bind 16384) [ 38.863967][ T1] MPTCP token hash table entries: 2048 (order: 5, 180224 bytes, vmalloc) [ 38.917961][ T1] UDP hash table entries: 1024 (order: 5, 163840 bytes, vmalloc) [ 38.965808][ T1] UDP-Lite hash table entries: 1024 (order: 5, 163840 bytes, vmalloc) [ 39.038148][ T1] NET: Registered protocol family 1 [ 39.100335][ T1] RPC: Registered named UNIX socket transport module. [ 39.129984][ T1] RPC: Registered udp transport module. [ 39.155086][ T1] RPC: Registered tcp transport module. [ 39.176621][ T1] RPC: Registered tcp NFSv4.1 backchannel transport module. [ 39.219287][ T1] NET: Registered protocol family 44 [ 39.240948][ T1] pci_bus 0000:00: resource 4 [io 0x0000-0x0cf7 window] [ 39.259284][ T1] pci_bus 0000:00: resource 5 [io 0x0d00-0xffff window] [ 39.297921][ T1] pci_bus 0000:00: resource 6 [mem 0x000a0000-0x000bffff window] [ 39.344982][ T1] pci_bus 0000:00: resource 7 [mem 0x80000000-0xafffffff window] [ 39.374885][ T1] pci_bus 0000:00: resource 8 [mem 0xc0000000-0xfebfffff window] [ 39.399138][ T1] pci_bus 0000:00: resource 9 [mem 0x580000000-0xd7fffffff window] [ 39.434807][ T1] pci 0000:00:01.0: Video device with shadowed ROM at [mem 0x000c0000-0x000dffff] [ 39.461429][ T1] pci 0000:00:01.0: pci_fixup_video+0x0/0x270 took 25515 usecs [ 39.529384][ T1] PCI Interrupt Link [GSIA] enabled at IRQ 16 [ 39.610189][ T1] pci 0000:00:1d.0: quirk_usb_early_handoff+0x0/0x105b took 108250 usecs [ 39.683060][ T1] PCI Interrupt Link [GSIB] enabled at IRQ 17 [ 39.732715][ T1] pci 0000:00:1d.1: quirk_usb_early_handoff+0x0/0x105b took 70846 usecs [ 39.782544][ T1] PCI Interrupt Link [GSIC] enabled at IRQ 18 [ 39.822882][ T1] pci 0000:00:1d.2: quirk_usb_early_handoff+0x0/0x105b took 53242 usecs [ 39.876637][ T1] PCI Interrupt Link [GSID] enabled at IRQ 19 [ 39.962857][ T1] pci 0000:00:1d.7: quirk_usb_early_handoff+0x0/0x105b took 99163 usecs [ 40.014880][ T1] PCI: CLS 0 bytes, default 64 [ 40.095944][ T1] PCI-DMA: Using software bounce buffering for IO (SWIOTLB) [ 40.126566][ T1] software IO TLB: mapped [mem 0x7ac00000-0x7ec00000] (64MB) [ 40.177291][ T1] kvm: no hardware support [ 40.192480][ T1] has_svm: not amd or hygon [ 40.210950][ T1] kvm: no hardware support [ 40.232543][ T1] clocksource: tsc: mask: 0xffffffffffffffff max_cycles: 0x1cd4c92266a, max_idle_ns: 440795223404 ns [ 40.289038][ T1] clocksource: Switched to clocksource tsc [ 40.328356][ T1] mce: Machine check injector initialized [ 40.385875][ T1] check: Scanning for low memory corruption every 60 seconds [ 41.117817][ T1] Initialise system trusted keyrings [ 41.173092][ T1] workingset: timestamp_bits=40 max_order=19 bucket_order=0 [ 41.217526][ T1] zbud: loaded [ 41.277370][ T1] DLM installed [ 41.302914][ T1] squashfs: version 4.0 (2009/01/31) Phillip Lougher [ 41.342764][ T1] FS-Cache: Netfs 'nfs' registered for caching [ 41.379874][ T1] NFS: Registering the id_resolver key type [ 41.408555][ T1] Key type id_resolver registered [ 41.436048][ T1] Key type id_legacy registered [ 41.456998][ T1] nfs4filelayout_init: NFSv4 File Layout Driver Registering... [ 41.485305][ T1] Installing knfsd (copyright (C) 1996 okir@monad.swb.de). [ 41.545317][ T1] FS-Cache: Netfs 'cifs' registered for caching [ 41.584285][ T1] Key type cifs.spnego registered [ 41.609625][ T1] Key type cifs.idmap registered [ 41.634665][ T1] ntfs: driver 2.1.32 [Flags: R/W]. [ 41.661328][ T1] fuse: init (API version 7.31) [ 41.722574][ T1] JFS: nTxBlock = 8192, nTxLock = 65536 [ 41.864671][ T1] SGI XFS with ACLs, security attributes, realtime, quota, no debug enabled [ 41.942198][ T1] 9p: Installing v9fs 9p2000 file system support [ 41.966254][ T1] FS-Cache: Netfs '9p' registered for caching [ 41.987654][ T1] ocfs2: Registered cluster interface o2cb [ 42.014102][ T1] ocfs2: Registered cluster interface user [ 42.042457][ T1] OCFS2 User DLM kernel interface loaded [ 42.123954][ T1] gfs2: GFS2 installed [ 42.184264][ T1] FS-Cache: Netfs 'ceph' registered for caching [ 42.206582][ T1] ceph: loaded (mds proto 32) [ 42.252325][ T1] NET: Registered protocol family 38 [ 42.269784][ T1] async_tx: api initialized (async) [ 42.282357][ T1] Key type asymmetric registered [ 42.306776][ T1] Asymmetric key parser 'x509' registered [ 42.334999][ T1] Asymmetric key parser 'pkcs8' registered [ 42.356925][ T1] Key type pkcs7_test registered [ 42.382079][ T1] Asymmetric key parser 'tpm_parser' registered [ 42.417773][ T1] Block layer SCSI generic (bsg) driver version 0.4 loaded (major 243) [ 42.485521][ T1] io scheduler mq-deadline registered [ 42.531304][ T1] io scheduler kyber registered [ 42.591890][ T1] io scheduler bfq registered [ 42.675314][ T1] hgafb: HGA card not detected. [ 42.699202][ T1] hgafb: probe of hgafb.0 failed with error -22 [ 42.739625][ T1] usbcore: registered new interface driver udlfb [ 42.790083][ T1] uvesafb: failed to execute /sbin/v86d [ 43.022866][ T1] uvesafb: make sure that the v86d helper is installed and executable [ 43.106058][ T1] uvesafb: Getting VBE info block failed (eax=0x4f00, err=-2) [ 43.144939][ T1] uvesafb: vbe_init() failed with -22 [ 43.191311][ T1] uvesafb: probe of uvesafb.0 failed with error -22 [ 43.476138][ T1] vga16fb: mapped to 0x00000000500b3a10 [ 92.622226][ C0] hrtimer: interrupt took 88430487 ns [ 98.581008][ T1] Console: switching to colour frame buffer device 80x30 [ 138.395432][ T1] fb0: VGA16 VGA frame buffer device [ 138.727119][ T1] input: Power Button as /devices/LNXSYSTM:00/LNXPWRBN:00/input/input0 [ 138.916118][ T1] ACPI: Power Button [PWRF] [ 139.418879][ T254] ================================================================== [ 139.451036][ T254] BUG: KASAN: global-out-of-bounds in internal_create_group+0x9d8/0xb20 [ 139.480867][ T254] Read of size 8 at addr ffffffff8a2e73d0 by task kworker/u17:6/254 [ 139.521321][ T254] [ 139.531033][ T254] CPU: 0 PID: 254 Comm: kworker/u17:6 Not tainted 5.9.0-rc1-syzkaller #0 [ 139.571126][ T254] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS rel-1.12.0-59-gc9ba5276e321-prebuilt.qemu.org 04/01/2014 [ 139.631009][ T254] Workqueue: events_unbound async_run_entry_fn [ 139.660923][ T254] Call Trace: [ 139.671262][ T254] dump_stack+0x18f/0x20d [ 139.683874][ T254] ? internal_create_group+0x9d8/0xb20 [ 139.701015][ T254] ? internal_create_group+0x9d8/0xb20 [ 139.721003][ T254] print_address_description.constprop.0.cold+0x5/0x497 [ 139.750972][ T254] ? vprintk_func+0x97/0x1a6 [ 139.770868][ T254] ? internal_create_group+0x9d8/0xb20 [ 139.780969][ T254] ? internal_create_group+0x9d8/0xb20 [ 139.790907][ T254] kasan_report.cold+0x1f/0x37 [ 139.810867][ T254] ? internal_create_group+0x9d8/0xb20 [ 139.820922][ T254] ? state_show+0xf0/0xf0 [ 139.831845][ T254] internal_create_group+0x9d8/0xb20 [ 139.861076][ T254] ? sysfs_remove_group+0x170/0x170 [ 139.881030][ T254] internal_create_groups.part.0+0x90/0x140 [ 139.911319][ T254] sysfs_create_groups+0x25/0x50 [ 139.931003][ T254] device_add+0x7fd/0x1c40 [ 139.940809][ T254] ? devlink_add_symlinks+0x450/0x450 [ 139.961183][ T254] ? lock_release+0x8e0/0x8e0 [ 139.981248][ T254] ? lock_downgrade+0x830/0x830 [ 140.000925][ T254] ? __schedule+0x88e/0x21e0 [ 140.010870][ T254] ? nd_synchronize+0x20/0x20 [ 140.021035][ T254] nd_async_device_register+0x12/0x80 [ 140.030838][ T254] async_run_entry_fn+0x121/0x530 [ 140.050863][ T254] process_one_work+0x94c/0x1670 [ 140.060959][ T254] ? lock_release+0x8e0/0x8e0 [ 140.071346][ T254] ? pwq_dec_nr_in_flight+0x2d0/0x2d0 [ 140.090892][ T254] ? rwlock_bug.part.0+0x90/0x90 [ 140.100895][ T254] worker_thread+0x64c/0x1120 [ 140.120924][ T254] ? __kthread_parkme+0x13f/0x1e0 [ 140.140938][ T254] ? process_one_work+0x1670/0x1670 [ 140.150888][ T254] kthread+0x3b5/0x4a0 [ 140.160964][ T254] ? __kthread_bind_mask+0xc0/0xc0 [ 140.170879][ T254] ? __kthread_bind_mask+0xc0/0xc0 [ 140.190912][ T254] ret_from_fork+0x1f/0x30 [ 140.200837][ T254] [ 140.210927][ T254] The buggy address belongs to the variable: [ 140.220961][ T254] nvdimm_firmware_attributes+0x10/0x40 [ 140.241066][ T254] [ 140.241066][ T254] Memory state around the buggy address: [ 140.261148][ T254] ffffffff8a2e7280: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 140.290994][ T254] ffffffff8a2e7300: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 140.321023][ T254] >ffffffff8a2e7380: 00 00 00 00 f9 f9 f9 f9 00 00 f9 f9 f9 f9 f9 f9 [ 140.350997][ T254] ^ [ 140.370857][ T254] ffffffff8a2e7400: 00 00 00 00 00 00 00 f9 f9 f9 f9 f9 00 00 00 00 [ 140.390855][ T254] ffffffff8a2e7480: 00 00 00 f9 f9 f9 f9 f9 00 00 00 00 00 00 00 f9 [ 140.420930][ T254] ================================================================== [ 140.440933][ T254] Disabling lock debugging due to kernel taint [ 140.460809][ T254] Kernel panic - not syncing: panic_on_warn set ... [ 140.470540][ T254] CPU: 1 PID: 254 Comm: kworker/u17:6 Tainted: G B 5.9.0-rc1-syzkaller #0 [ 140.470540][ T254] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS rel-1.12.0-59-gc9ba5276e321-prebuilt.qemu.org 04/01/2014 [ 140.470540][ T254] Workqueue: events_unbound async_run_entry_fn [ 140.470540][ T254] Call Trace: [ 140.470540][ T254] dump_stack+0x18f/0x20d [ 140.470540][ T254] ? internal_create_group+0x9d0/0xb20 [ 140.470540][ T254] panic+0x2e3/0x75c [ 140.470540][ T254] ? __warn_printk+0xf3/0xf3 [ 140.470540][ T254] ? preempt_schedule_common+0x59/0xc0 [ 140.470540][ T254] ? internal_create_group+0x9d8/0xb20 [ 140.470540][ T254] ? preempt_schedule_thunk+0x16/0x18 [ 140.470540][ T254] ? trace_hardirqs_on+0x55/0x220 [ 140.470540][ T254] ? internal_create_group+0x9d8/0xb20 [ 140.470540][ T254] ? internal_create_group+0x9d8/0xb20 [ 140.470540][ T254] end_report+0x4d/0x53 [ 140.470540][ T254] kasan_report.cold+0xd/0x37 [ 140.470540][ T254] ? internal_create_group+0x9d8/0xb20 [ 140.470540][ T254] ? state_show+0xf0/0xf0 [ 140.470540][ T254] internal_create_group+0x9d8/0xb20 [ 140.470540][ T254] ? sysfs_remove_group+0x170/0x170 [ 140.470540][ T254] internal_create_groups.part.0+0x90/0x140 [ 140.470540][ T254] sysfs_create_groups+0x25/0x50 [ 140.470540][ T254] device_add+0x7fd/0x1c40 [ 140.470540][ T254] ? devlink_add_symlinks+0x450/0x450 [ 140.470540][ T254] ? lock_release+0x8e0/0x8e0 [ 140.470540][ T254] ? lock_downgrade+0x830/0x830 [ 140.470540][ T254] ? __schedule+0x88e/0x21e0 [ 140.470540][ T254] ? nd_synchronize+0x20/0x20 [ 140.470540][ T254] nd_async_device_register+0x12/0x80 [ 140.470540][ T254] async_run_entry_fn+0x121/0x530 [ 140.470540][ T254] process_one_work+0x94c/0x1670 [ 140.470540][ T254] ? lock_release+0x8e0/0x8e0 [ 140.470540][ T254] ? pwq_dec_nr_in_flight+0x2d0/0x2d0 [ 140.470540][ T254] ? rwlock_bug.part.0+0x90/0x90 [ 140.470540][ T254] worker_thread+0x64c/0x1120 [ 140.470540][ T254] ? __kthread_parkme+0x13f/0x1e0 [ 140.470540][ T254] ? process_one_work+0x1670/0x1670 [ 140.470540][ T254] kthread+0x3b5/0x4a0 [ 140.470540][ T254] ? __kthread_bind_mask+0xc0/0xc0 [ 140.470540][ T254] ? __kthread_bind_mask+0xc0/0xc0 [ 140.470540][ T254] ret_from_fork+0x1f/0x30 [ 140.470540][ T254] Kernel Offset: disabled [ 140.470540][ T254] Rebooting in 86400 seconds..