[ 0.000000][ T0] Linux version 5.8.0-syzkaller (syzkaller@syzkaller) (gcc (GCC) 10.1.0-syz 20200507, GNU ld (GNU Binutils for Debian) 2.28) #0 SMP PREEMPT now [ 0.000000][ T0] Command line: BOOT_IMAGE=/vmlinuz root=/dev/sda1 console=ttyS0 earlyprintk=serial vsyscall=native rodata=n oops=panic panic_on_warn=1 nmi_watchdog=panic panic=86400 net.ifnames=0 sysctl.kernel.hung_task_all_cpu_backtrace=1 security=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 [ 0.000130][ T0] kvm-clock: cpu 0, msr becc001, primary cpu clock [ 0.000131][ T0] kvm-clock: using sched offset of 33519437769 cycles [ 0.035211][ T0] clocksource: kvm-clock: mask: 0xffffffffffffffff max_cycles: 0x1cd42e4dffb, max_idle_ns: 881590591483 ns [ 0.151103][ T0] tsc: Detected 2000.164 MHz processor [ 0.233390][ T0] last_pfn = 0x7ffdd max_arch_pfn = 0x400000000 [ 0.393236][ T0] x86/PAT: Configuration [0-7]: WB WC UC- UC WB WP UC- WT [ 0.481888][ T0] found SMP MP-table at [mem 0x000f5a40-0x000f5a4f] [ 0.539829][ T0] check: Scanning 1 areas for low memory corruption [ 0.608524][ T0] ACPI: Early table checksum verification disabled [ 0.643490][ T0] ACPI: RSDP 0x00000000000F5870 000014 (v00 BOCHS ) [ 0.673828][ T0] ACPI: RSDT 0x000000007FFE1F9D 000040 (v01 BOCHS BXPCRSDT 00000001 BXPC 00000001) [ 0.719534][ T0] ACPI: FACP 0x000000007FFE1860 0000F4 (v03 BOCHS BXPCFACP 00000001 BXPC 00000001) [ 0.774761][ T0] ACPI: DSDT 0x000000007FFDF040 002820 (v01 BOCHS BXPCDSDT 00000001 BXPC 00000001) [ 0.828846][ T0] ACPI: FACS 0x000000007FFDF000 000040 [ 0.857593][ T0] ACPI: APIC 0x000000007FFE1954 0000B0 (v01 BOCHS BXPCAPIC 00000001 BXPC 00000001) [ 0.907103][ T0] ACPI: HPET 0x000000007FFE1A04 000038 (v01 BOCHS BXPCHPET 00000001 BXPC 00000001) [ 0.966335][ T0] ACPI: SRAT 0x000000007FFE1A3C 000178 (v01 BOCHS BXPCSRAT 00000001 BXPC 00000001) [ 1.027812][ T0] ACPI: MCFG 0x000000007FFE1BB4 00003C (v01 BOCHS BXPCMCFG 00000001 BXPC 00000001) [ 1.077508][ T0] ACPI: SSDT 0x000000007FFE1BF0 0002CD (v01 BOCHS NVDIMM 00000001 BXPC 00000001) [ 1.135410][ T0] ACPI: NFIT 0x000000007FFE1EBD 0000E0 (v01 BOCHS BXPCNFIT 00000001 BXPC 00000001) [ 1.238719][ T0] SRAT: PXM 0 -> APIC 0x00 -> Node 0 [ 1.274220][ T0] SRAT: PXM 0 -> APIC 0x01 -> Node 0 [ 1.305739][ T0] SRAT: PXM 0 -> APIC 0x02 -> Node 0 [ 1.339805][ T0] SRAT: PXM 0 -> APIC 0x03 -> Node 0 [ 1.375684][ T0] SRAT: PXM 1 -> APIC 0x04 -> Node 1 [ 1.402638][ T0] SRAT: PXM 1 -> APIC 0x05 -> Node 1 [ 1.427026][ T0] SRAT: PXM 1 -> APIC 0x06 -> Node 1 [ 1.464665][ T0] SRAT: PXM 1 -> APIC 0x07 -> Node 1 [ 1.497127][ T0] ACPI: SRAT: Node 0 PXM 0 [mem 0x00000000-0x0009ffff] [ 1.532979][ T0] ACPI: SRAT: Node 0 PXM 0 [mem 0x00100000-0x3fffffff] [ 1.564062][ T0] ACPI: SRAT: Node 1 PXM 1 [mem 0x40000000-0x7fffffff] [ 1.603875][ T0] ACPI: SRAT: Node 1 PXM 1 [mem 0x100000000-0x57fffffff] hotplug [ 1.654779][ T0] NUMA: Node 0 [mem 0x00000000-0x0009ffff] + [mem 0x00100000-0x3fffffff] -> [mem 0x00000000-0x3fffffff] [ 1.731365][ T0] Faking node 0 at [mem 0x0000000000000000-0x000000003fffffff] (1024MB) [ 1.789512][ T0] Faking node 1 at [mem 0x0000000040000000-0x000000007ffdcfff] (1023MB) [ 1.855361][ T0] NODE_DATA(0) allocated [mem 0x3fffb000-0x3fffffff] [ 1.899351][ T0] NODE_DATA(1) allocated [mem 0x7ffd7000-0x7ffdbfff] [ 2.306839][ T0] Zone ranges: [ 2.331503][ T0] DMA [mem 0x0000000000001000-0x0000000000ffffff] [ 2.374194][ T0] DMA32 [mem 0x0000000001000000-0x000000007ffdcfff] [ 2.418342][ T0] Normal empty [ 2.446538][ T0] Device empty [ 2.467646][ T0] Movable zone start for each node [ 2.490638][ T0] Early memory node ranges [ 2.511853][ T0] node 0: [mem 0x0000000000001000-0x000000000009efff] [ 2.550665][ T0] node 0: [mem 0x0000000000100000-0x000000003fffffff] [ 2.588152][ T0] node 1: [mem 0x0000000040000000-0x000000007ffdcfff] [ 2.626409][ T0] Zeroed struct page in unavailable ranges: 133 pages [ 2.626429][ T0] Initmem setup node 0 [mem 0x0000000000001000-0x000000003fffffff] [ 2.715127][ T0] Initmem setup node 1 [mem 0x0000000040000000-0x000000007ffdcfff] [ 9.694632][ T0] kasan: KernelAddressSanitizer initialized [ 9.811506][ T0] ACPI: PM-Timer IO Port: 0x608 [ 9.859256][ T0] ACPI: LAPIC_NMI (acpi_id[0xff] dfl dfl lint[0x1]) [ 9.940179][ T0] IOAPIC[0]: apic_id 0, version 17, address 0xfec00000, GSI 0-23 [ 10.018090][ T0] ACPI: INT_SRC_OVR (bus 0 bus_irq 0 global_irq 2 dfl dfl) [ 10.075144][ T0] ACPI: INT_SRC_OVR (bus 0 bus_irq 5 global_irq 5 high level) [ 10.130113][ T0] ACPI: INT_SRC_OVR (bus 0 bus_irq 9 global_irq 9 high level) [ 10.186066][ T0] ACPI: INT_SRC_OVR (bus 0 bus_irq 10 global_irq 10 high level) [ 10.238610][ T0] ACPI: INT_SRC_OVR (bus 0 bus_irq 11 global_irq 11 high level) [ 10.287783][ T0] Using ACPI (MADT) for SMP configuration information [ 10.334379][ T0] ACPI: HPET id: 0x8086a201 base: 0xfed00000 [ 10.388746][ T0] TSC deadline timer available [ 10.433484][ T0] smpboot: Allowing 8 CPUs, 4 hotplug CPUs [ 10.487819][ T0] kvm-guest: KVM setup pv remote TLB flush [ 10.534822][ T0] PM: hibernation: Registered nosave memory: [mem 0x00000000-0x00000fff] [ 10.588636][ T0] PM: hibernation: Registered nosave memory: [mem 0x0009f000-0x0009ffff] [ 10.635072][ T0] PM: hibernation: Registered nosave memory: [mem 0x000a0000-0x000effff] [ 10.695985][ T0] PM: hibernation: Registered nosave memory: [mem 0x000f0000-0x000fffff] [ 10.765142][ T0] [mem 0xc0000000-0xfed1bfff] available for PCI devices [ 10.828217][ T0] Booting paravirtualized kernel on KVM [ 10.888194][ T0] clocksource: refined-jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604462750000 ns [ 11.087476][ T0] setup_percpu: NR_CPUS:64 nr_cpumask_bits:64 nr_cpu_ids:8 nr_node_ids:2 [ 11.249192][ T0] percpu: Embedded 65 pages/cpu s226696 r8192 d31352 u1048576 [ 11.352112][ T0] kvm-guest: stealtime: cpu 0, msr 2ce20a40 [ 11.394955][ T0] kvm-guest: PV spinlocks enabled [ 11.422044][ T0] PV qspinlock hash table entries: 256 (order: 0, 4096 bytes, linear) [ 11.487109][ T0] Built 2 zonelists, mobility grouping on. Total pages: 515942 [ 11.536207][ T0] Policy zone: DMA32 [ 11.559684][ 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 [ 12.192042][ T0] mem auto-init: stack:off, heap alloc:on, heap free:off [ 13.408026][ T0] Memory: 1503356K/2096620K available (116743K kernel code, 17666K rwdata, 21624K rodata, 2792K init, 23948K bss, 593008K reserved, 0K cma-reserved) [ 13.667040][ T0] Running RCU self tests [ 13.692616][ T0] rcu: Preemptible hierarchical RCU implementation. [ 13.727351][ T0] rcu: RCU lockdep checking is enabled. [ 13.764259][ T0] rcu: RCU restricting CPUs from NR_CPUS=64 to nr_cpu_ids=8. [ 13.817304][ T0] rcu: RCU callback double-/use-after-free debug enabled. [ 13.869527][ T0] rcu: RCU debug extended QS entry/exit. [ 13.912169][ T0] All grace periods are expedited (rcu_expedited). [ 13.953527][ T0] Trampoline variant of Tasks RCU enabled. [ 13.992514][ T0] rcu: RCU calculated value of scheduler-enlistment delay is 10 jiffies. [ 14.064597][ T0] rcu: Adjusting geometry for rcu_fanout_leaf=16, nr_cpu_ids=8 [ 14.181083][ T0] NR_IRQS: 4352, nr_irqs: 488, preallocated irqs: 16 [ 14.340544][ T0] random: get_random_bytes called from start_kernel+0x23b/0x46a with crng_init=0 [ 15.040120][ T0] Console: colour VGA+ 80x25 [ 15.137566][ T0] printk: console [ttyS0] enabled [ 15.137566][ T0] printk: console [ttyS0] enabled [ 15.203110][ T0] printk: bootconsole [earlyser0] disabled [ 15.203110][ T0] printk: bootconsole [earlyser0] disabled [ 15.287404][ T0] Lock dependency validator: Copyright (c) 2006 Red Hat, Inc., Ingo Molnar [ 15.347493][ T0] ... MAX_LOCKDEP_SUBCLASSES: 8 [ 15.386640][ T0] ... MAX_LOCK_DEPTH: 48 [ 15.425044][ T0] ... MAX_LOCKDEP_KEYS: 8192 [ 15.468332][ T0] ... CLASSHASH_SIZE: 4096 [ 15.503578][ T0] ... MAX_LOCKDEP_ENTRIES: 32768 [ 15.542750][ T0] ... MAX_LOCKDEP_CHAINS: 65536 [ 15.590466][ T0] ... CHAINHASH_SIZE: 32768 [ 15.639686][ T0] memory used by lock dependency info: 6301 kB [ 15.682621][ T0] memory used for stack traces: 4224 kB [ 15.722201][ T0] per task-struct memory footprint: 1920 bytes [ 15.779316][ T0] mempolicy: Enabling automatic NUMA balancing. Configure with numa_balancing= or the kernel.numa_balancing sysctl [ 15.884294][ T0] ACPI: Core revision 20200717 [ 15.974078][ T0] clocksource: hpet: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604467 ns [ 16.100958][ T0] APIC: Switch to symmetric I/O mode setup [ 16.154923][ T0] x2apic enabled [ 16.198698][ T0] Switched APIC routing to physical x2apic. [ 16.237079][ T0] kvm-guest: setup PV IPIs [ 16.409537][ T0] ..TIMER: vector=0x30 apic1=0 pin1=2 apic2=-1 pin2=-1 [ 16.470086][ T0] clocksource: tsc-early: mask: 0xffffffffffffffff max_cycles: 0x1cd4c92266a, max_idle_ns: 440795223404 ns [ 16.581945][ T0] Calibrating delay loop (skipped) preset value.. 4000.32 BogoMIPS (lpj=20001640) [ 16.590172][ T0] pid_max: default: 32768 minimum: 301 [ 16.615065][ T0] LSM: Security Framework initializing [ 16.620640][ T0] LSM: security= is ignored because it is superseded by lsm= [ 16.632176][ T0] Yama: becoming mindful. [ 16.656124][ T0] SELinux: Initializing. [ 16.671283][ T0] TOMOYO Linux initialized [ 16.683905][ T0] LSM support for eBPF active [ 16.711093][ T0] Dentry cache hash table entries: 262144 (order: 9, 2097152 bytes, vmalloc) [ 16.738243][ T0] Inode-cache hash table entries: 131072 (order: 8, 1048576 bytes, vmalloc) [ 16.742393][ T0] Mount-cache hash table entries: 4096 (order: 3, 32768 bytes, vmalloc) [ 16.751070][ T0] Mountpoint-cache hash table entries: 4096 (order: 3, 32768 bytes, vmalloc) [ 17.064682][ T0] x86/cpu: User Mode Instruction Prevention (UMIP) activated [ 17.130779][ T0] Last level iTLB entries: 4KB 0, 2MB 0, 4MB 0 [ 17.139935][ T0] Last level dTLB entries: 4KB 0, 2MB 0, 4MB 0, 1GB 0 [ 17.155535][ T0] Spectre V1 : Mitigation: usercopy/swapgs barriers and __user pointer sanitization [ 17.160804][ T0] Spectre V2 : Spectre mitigation: kernel not compiled with retpoline; no mitigation available! [ 17.163335][ T0] Speculative Store Bypass: Mitigation: Speculative Store Bypass disabled via prctl [ 17.195541][ T0] TAA: Mitigation: Clear CPU buffers [ 17.200047][ T0] MDS: Mitigation: Clear CPU buffers [ 17.486798][ T0] Freeing SMP alternatives memory: 104K [ 18.179922][ T1] smpboot: CPU0: Intel(R) Xeon(R) CPU @ 2.00GHz (family: 0x6, model: 0x55, stepping: 0x3) [ 18.292335][ T1] Performance Events: unsupported p6 CPU model 85 no PMU driver, software events only. [ 18.329922][ T1] rcu: Hierarchical SRCU implementation. [ 18.377075][ T1] dyndbg: Ignore empty _ddebug table in a CONFIG_DYNAMIC_DEBUG_CORE build [ 18.405675][ T1] NMI watchdog: Perf NMI watchdog permanently disabled [ 18.458358][ T1] smp: Bringing up secondary CPUs ... [ 18.502235][ T1] x86: Booting SMP configuration: [ 18.511074][ T1] .... node #0, CPUs: #1 [ 2.152061][ T0] kvm-clock: cpu 1, msr becc041, secondary cpu clock [ 18.658566][ T15] kvm-guest: stealtime: cpu 1, msr 2cf20a40 [ 18.702113][ 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. [ 18.711705][ 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. [ 18.740688][ T1] #2 [ 2.152061][ T0] kvm-clock: cpu 2, msr becc081, secondary cpu clock [ 18.815178][ T20] kvm-guest: stealtime: cpu 2, msr 2d020a40 [ 18.854494][ T1] #3 [ 2.152061][ T0] kvm-clock: cpu 3, msr becc0c1, secondary cpu clock [ 18.942994][ T25] kvm-guest: stealtime: cpu 3, msr 2d120a40 [ 18.981017][ T1] smp: Brought up 2 nodes, 4 CPUs [ 18.990127][ T1] smpboot: Max logical packages: 2 [ 19.000328][ T1] smpboot: Total of 4 processors activated (16001.31 BogoMIPS) [ 19.103719][ T1] devtmpfs: initialized [ 19.134746][ T1] x86/mm: Memory block size: 128MB [ 19.247818][ T1] clocksource: jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604462750000 ns [ 19.265586][ T1] futex hash table entries: 2048 (order: 6, 262144 bytes, vmalloc) [ 19.309432][ T33] kworker/u17:0 (33) used greatest stack depth: 27656 bytes left [ 19.324440][ T1] xor: automatically using best checksumming function avx [ 19.359427][ T37] kworker/u17:0 (37) used greatest stack depth: 26992 bytes left [ 19.369922][ T1] PM: RTC time: 21:12:11, date: 2020-08-14 [ 19.479439][ T1] NET: Registered protocol family 16 [ 19.528381][ T1] audit: initializing netlink subsys (disabled) [ 19.564018][ T39] audit: type=2000 audit(1597439528.733:1): state=initialized audit_enabled=0 res=1 [ 19.655307][ T1] thermal_sys: Registered thermal governor 'step_wise' [ 19.655439][ T1] thermal_sys: Registered thermal governor 'user_space' [ 19.744014][ T1] cpuidle: using governor menu [ 19.882101][ T1] NET: Registered protocol family 42 [ 19.968530][ T1] ACPI: bus type PCI registered [ 20.021161][ T1] dca service started, version 1.12.1 [ 20.079922][ T1] PCI: MMCONFIG for domain 0000 [bus 00-ff] at [mem 0xb0000000-0xbfffffff] (base 0xb0000000) [ 20.181264][ T1] PCI: MMCONFIG at [mem 0xb0000000-0xbfffffff] reserved in E820 [ 20.979232][ T1] PCI: Using configuration type 1 for base access [ 21.926781][ T1] HugeTLB registered 2.00 MiB page size, pre-allocated 0 pages [ 22.262010][ T1] cryptd: max_cpu_qlen set to 1000 [ 22.741318][ T1] raid6: avx512x4 gen() 11796 MB/s [ 22.921508][ T1] raid6: avx512x4 xor() 4891 MB/s [ 23.100046][ T1] raid6: avx512x2 gen() 10703 MB/s [ 23.280312][ T1] raid6: avx512x2 xor() 5241 MB/s [ 23.460141][ T1] raid6: avx512x1 gen() 7006 MB/s [ 23.640398][ T1] raid6: avx512x1 xor() 2769 MB/s [ 23.859922][ T1] raid6: avx2x4 gen() 8940 MB/s [ 24.065553][ T1] raid6: avx2x4 xor() 4636 MB/s [ 24.277317][ T1] raid6: avx2x2 gen() 6358 MB/s [ 24.476646][ T1] raid6: avx2x2 xor() 3057 MB/s [ 24.663684][ T1] raid6: avx2x1 gen() 4341 MB/s [ 24.852636][ T1] raid6: avx2x1 xor() 1688 MB/s [ 25.069922][ T1] raid6: sse2x4 gen() 5055 MB/s [ 25.285454][ T1] raid6: sse2x4 xor() 2500 MB/s [ 25.498954][ T1] raid6: sse2x2 gen() 3084 MB/s [ 25.701892][ T1] raid6: sse2x2 xor() 1478 MB/s [ 25.898560][ T1] raid6: sse2x1 gen() 2227 MB/s [ 26.073356][ T1] raid6: sse2x1 xor() 831 MB/s [ 26.109922][ T1] raid6: using algorithm avx512x4 gen() 11796 MB/s [ 26.161303][ T1] raid6: .... xor() 4891 MB/s, rmw enabled [ 26.193118][ T1] raid6: using avx512x2 recovery algorithm [ 26.450364][ T1] ACPI: Added _OSI(Module Device) [ 26.492458][ T1] ACPI: Added _OSI(Processor Device) [ 26.534674][ T1] ACPI: Added _OSI(3.0 _SCP Extensions) [ 26.570521][ T1] ACPI: Added _OSI(Processor Aggregator Device) [ 26.601015][ T1] ACPI: Added _OSI(Linux-Dell-Video) [ 26.620354][ T1] ACPI: Added _OSI(Linux-Lenovo-NV-HDMI-Audio) [ 26.660703][ T1] ACPI: Added _OSI(Linux-HPI-Hybrid-Graphics) [ 26.824182][ T1] ACPI: 2 ACPI AML tables successfully acquired and loaded [ 27.035518][ T1] ACPI: Interpreter enabled [ 27.056593][ T1] ACPI: (supports S0 S3 S4 S5) [ 27.060956][ T1] ACPI: Using IOAPIC for interrupt routing [ 27.078678][ T1] PCI: Using host bridge windows from ACPI; if necessary, use "pci=nocrs" and report a bug [ 27.089922][ T1] ACPI: Enabled 3 GPEs in block 00 to 3F [ 27.329922][ T1] ACPI: PCI Root Bridge [PCI0] (domain 0000 [bus 00-ff]) [ 27.344413][ T1] acpi PNP0A08:00: _OSC: OS supports [ExtendedConfig ASPM ClockPM Segments MSI HPX-Type3] [ 27.376673][ T1] acpi PNP0A08:00: _OSC: platform does not support [LTR] [ 27.396964][ T1] acpi PNP0A08:00: _OSC: OS now controls [PCIeHotplug PME AER PCIeCapability] [ 27.440682][ T1] PCI host bridge to bus 0000:00 [ 27.450589][ T1] pci_bus 0000:00: Unknown NUMA node; performance will be reduced [ 27.460344][ T1] pci_bus 0000:00: root bus resource [io 0x0000-0x0cf7 window] [ 27.470188][ T1] pci_bus 0000:00: root bus resource [io 0x0d00-0xffff window] [ 27.480185][ T1] pci_bus 0000:00: root bus resource [mem 0x000a0000-0x000bffff window] [ 27.490127][ T1] pci_bus 0000:00: root bus resource [mem 0x80000000-0xafffffff window] [ 27.500057][ T1] pci_bus 0000:00: root bus resource [mem 0xc0000000-0xfebfffff window] [ 27.510047][ T1] pci_bus 0000:00: root bus resource [mem 0x580000000-0xd7fffffff window] [ 27.520253][ T1] pci_bus 0000:00: root bus resource [bus 00-ff] [ 27.543760][ T1] pci 0000:00:00.0: [8086:29c0] type 00 class 0x060000 [ 27.637867][ T1] pci 0000:00:01.0: [1af4:1050] type 00 class 0x030000 [ 27.699922][ T1] pci 0000:00:01.0: reg 0x10: [mem 0xfe000000-0xfe7fffff pref] [ 27.776537][ T1] pci 0000:00:01.0: reg 0x18: [mem 0xfe800000-0xfe803fff 64bit pref] [ 27.846942][ T1] pci 0000:00:01.0: reg 0x20: [mem 0xfebf4000-0xfebf4fff] [ 27.919922][ T1] pci 0000:00:01.0: reg 0x30: [mem 0xfebe0000-0xfebeffff pref] [ 28.174660][ T1] pci 0000:00:02.0: [1af4:1000] type 00 class 0x020000 [ 28.199922][ T1] pci 0000:00:02.0: reg 0x10: [io 0xc680-0xc69f] [ 28.227856][ T1] pci 0000:00:02.0: reg 0x14: [mem 0xfebf5000-0xfebf5fff] [ 28.265296][ T1] pci 0000:00:02.0: reg 0x20: [mem 0xfe804000-0xfe807fff 64bit pref] [ 28.280441][ T1] pci 0000:00:02.0: reg 0x30: [mem 0xfeb40000-0xfeb7ffff pref] [ 28.374425][ T1] pci 0000:00:03.0: [8086:100e] type 00 class 0x020000 [ 28.393845][ T1] pci 0000:00:03.0: reg 0x10: [mem 0xfebc0000-0xfebdffff] [ 28.409691][ T1] pci 0000:00:03.0: reg 0x14: [io 0xc600-0xc63f] [ 28.452573][ T1] pci 0000:00:03.0: reg 0x30: [mem 0xfeb80000-0xfebbffff pref] [ 28.502000][ T1] pci 0000:00:04.0: [1274:5000] type 00 class 0x040100 [ 28.524365][ T1] pci 0000:00:04.0: reg 0x10: [io 0xc400-0xc4ff] [ 28.622611][ T1] pci 0000:00:05.0: [8086:2415] type 00 class 0x040100 [ 28.646862][ T1] pci 0000:00:05.0: reg 0x10: [io 0xc000-0xc3ff] [ 28.658671][ T1] pci 0000:00:05.0: reg 0x14: [io 0xc500-0xc5ff] [ 28.749126][ T1] pci 0000:00:06.0: [8086:2668] type 00 class 0x040300 [ 28.779206][ T1] pci 0000:00:06.0: reg 0x10: [mem 0xfebf0000-0xfebf3fff] [ 28.892206][ T1] pci 0000:00:07.0: [1af4:1009] type 00 class 0x000200 [ 28.940716][ T1] pci 0000:00:07.0: reg 0x10: [io 0xc6a0-0xc6bf] [ 28.960577][ T1] pci 0000:00:07.0: reg 0x14: [mem 0xfebf6000-0xfebf6fff] [ 28.993603][ T1] pci 0000:00:07.0: reg 0x20: [mem 0xfe808000-0xfe80bfff 64bit pref] [ 29.113786][ T1] pci 0000:00:1d.0: [8086:2934] type 00 class 0x0c0300 [ 29.158243][ T1] pci 0000:00:1d.0: reg 0x20: [io 0xc6c0-0xc6df] [ 29.191502][ T1] pci 0000:00:1d.1: [8086:2935] type 00 class 0x0c0300 [ 29.238721][ T1] pci 0000:00:1d.1: reg 0x20: [io 0xc6e0-0xc6ff] [ 29.275026][ T1] pci 0000:00:1d.2: [8086:2936] type 00 class 0x0c0300 [ 29.327837][ T1] pci 0000:00:1d.2: reg 0x20: [io 0xc700-0xc71f] [ 29.371259][ T1] pci 0000:00:1d.7: [8086:293a] type 00 class 0x0c0320 [ 29.393448][ T1] pci 0000:00:1d.7: reg 0x10: [mem 0xfebf7000-0xfebf7fff] [ 29.488442][ T1] pci 0000:00:1f.0: [8086:2918] type 00 class 0x060100 [ 29.553998][ T1] pci 0000:00:1f.0: quirk: [io 0x0600-0x067f] claimed by ICH6 ACPI/GPIO/TCO [ 29.569922][ T1] pci 0000:00:1f.0: quirk_ich7_lpc+0x0/0x190 took 19531 usecs [ 29.601896][ T1] pci 0000:00:1f.2: [8086:2922] type 00 class 0x010601 [ 29.652436][ T1] pci 0000:00:1f.2: reg 0x20: [io 0xc720-0xc73f] [ 29.668170][ T1] pci 0000:00:1f.2: reg 0x24: [mem 0xfebf8000-0xfebf8fff] [ 29.714591][ T1] pci 0000:00:1f.3: [8086:2930] type 00 class 0x0c0500 [ 29.756716][ T1] pci 0000:00:1f.3: reg 0x20: [io 0x0700-0x073f] [ 30.009922][ T1] ACPI: PCI Interrupt Link [LNKA] (IRQs 5 *10 11) [ 30.031449][ T1] ACPI: PCI Interrupt Link [LNKB] (IRQs 5 *10 11) [ 30.046268][ T1] ACPI: PCI Interrupt Link [LNKC] (IRQs 5 10 *11) [ 30.055760][ T1] ACPI: PCI Interrupt Link [LNKD] (IRQs 5 10 *11) [ 30.066274][ T1] ACPI: PCI Interrupt Link [LNKE] (IRQs 5 *10 11) [ 30.080102][ T1] ACPI: PCI Interrupt Link [LNKF] (IRQs 5 *10 11) [ 30.096818][ T1] ACPI: PCI Interrupt Link [LNKG] (IRQs 5 10 *11) [ 30.106050][ T1] ACPI: PCI Interrupt Link [LNKH] (IRQs 5 10 *11) [ 30.112338][ T1] ACPI: PCI Interrupt Link [GSIA] (IRQs *16) [ 30.121025][ T1] ACPI: PCI Interrupt Link [GSIB] (IRQs *17) [ 30.130869][ T1] ACPI: PCI Interrupt Link [GSIC] (IRQs *18) [ 30.141316][ T1] ACPI: PCI Interrupt Link [GSID] (IRQs *19) [ 30.150804][ T1] ACPI: PCI Interrupt Link [GSIE] (IRQs *20) [ 30.160811][ T1] ACPI: PCI Interrupt Link [GSIF] (IRQs *21) [ 30.170612][ T1] ACPI: PCI Interrupt Link [GSIG] (IRQs *22) [ 30.180609][ T1] ACPI: PCI Interrupt Link [GSIH] (IRQs *23) [ 30.339138][ T1] iommu: Default domain type: Translated [ 30.386751][ T1] pci 0000:00:01.0: vgaarb: setting as boot VGA device [ 30.389922][ T1] pci 0000:00:01.0: vgaarb: VGA device added: decodes=io+mem,owns=io+mem,locks=none [ 30.393793][ T1] pci 0000:00:01.0: vgaarb: bridge control possible [ 30.421508][ T1] vgaarb: loaded [ 30.611806][ T1] SCSI subsystem initialized [ 30.709922][ T1] ACPI: bus type USB registered [ 30.715081][ T1] usbcore: registered new interface driver usbfs [ 30.721997][ T1] usbcore: registered new interface driver hub [ 30.732941][ T1] usbcore: registered new device driver usb [ 30.746892][ T1] mc: Linux media interface: v0.10 [ 30.751927][ T1] videodev: Linux video capture interface: v2.00 [ 30.771805][ T1] pps_core: LinuxPPS API ver. 1 registered [ 30.780449][ T1] pps_core: Software ver. 5.3.6 - Copyright 2005-2007 Rodolfo Giometti [ 30.841678][ T1] PTP clock support registered [ 30.904664][ T1] EDAC MC: Ver: 3.0.0 [ 31.049364][ T1] Advanced Linux Sound Architecture Driver Initialized. [ 31.243634][ T1] Bluetooth: Core ver 2.22 [ 31.289923][ T1] NET: Registered protocol family 31 [ 31.330348][ T1] Bluetooth: HCI device and connection manager initialized [ 31.406833][ T1] Bluetooth: HCI socket layer initialized [ 31.461858][ T1] Bluetooth: L2CAP socket layer initialized [ 31.521867][ T1] Bluetooth: SCO socket layer initialized [ 31.579923][ T1] NET: Registered protocol family 8 [ 31.620113][ T1] NET: Registered protocol family 20 [ 31.667074][ T1] NetLabel: Initializing [ 31.710495][ T1] NetLabel: domain hash size = 128 [ 31.750303][ T1] NetLabel: protocols = UNLABELED CIPSOv4 CALIPSO [ 31.812542][ T1] NetLabel: unlabeled traffic allowed by default [ 31.877765][ T1] nfc: nfc_init: NFC Core ver 0.1 [ 31.912683][ T1] NET: Registered protocol family 39 [ 31.964459][ T1] PCI: Using ACPI for IRQ routing [ 37.806600][ T1] hpet0: at MMIO 0xfed00000, IRQs 2, 8, 0 [ 37.860485][ T1] hpet0: 3 comparators, 64-bit 100.000000 MHz counter [ 37.944984][ T1] clocksource: Switched to clocksource kvm-clock [ 42.676667][ T1] VFS: Disk quotas dquot_6.6.0 [ 43.073696][ T1] VFS: Dquot-cache hash table entries: 512 (order 0, 4096 bytes) [ 43.545810][ T1] FS-Cache: Loaded [ 43.898299][ T1] CacheFiles: Loaded [ 44.129826][ T1] TOMOYO: 2.6.0 [ 44.187443][ T1] Mandatory Access Control activated. [ 44.322273][ T1] pnp: PnP ACPI init [ 44.708672][ T1] pnp: PnP ACPI: found 6 devices [ 45.179222][ T1] clocksource: acpi_pm: mask: 0xffffff max_cycles: 0xffffff, max_idle_ns: 2085701024 ns [ 45.286449][ T1] NET: Registered protocol family 2 [ 45.475868][ T1] tcp_listen_portaddr_hash hash table entries: 1024 (order: 4, 81920 bytes, vmalloc) [ 45.572281][ T1] TCP established hash table entries: 16384 (order: 5, 131072 bytes, vmalloc) [ 45.707936][ T1] TCP bind hash table entries: 16384 (order: 8, 1179648 bytes, vmalloc) [ 45.812401][ T1] TCP: Hash tables configured (established 16384 bind 16384) [ 45.956622][ T1] MPTCP token hash table entries: 2048 (order: 5, 180224 bytes, vmalloc) [ 46.036076][ T1] UDP hash table entries: 1024 (order: 5, 163840 bytes, vmalloc) [ 46.095391][ T1] UDP-Lite hash table entries: 1024 (order: 5, 163840 bytes, vmalloc) [ 46.159876][ T1] NET: Registered protocol family 1 [ 46.219250][ T1] RPC: Registered named UNIX socket transport module. [ 46.251276][ T1] RPC: Registered udp transport module. [ 46.275417][ T1] RPC: Registered tcp transport module. [ 46.307804][ T1] RPC: Registered tcp NFSv4.1 backchannel transport module. [ 46.374198][ T1] NET: Registered protocol family 44 [ 46.403591][ T1] pci_bus 0000:00: resource 4 [io 0x0000-0x0cf7 window] [ 46.437953][ T1] pci_bus 0000:00: resource 5 [io 0x0d00-0xffff window] [ 46.484460][ T1] pci_bus 0000:00: resource 6 [mem 0x000a0000-0x000bffff window] [ 46.523984][ T1] pci_bus 0000:00: resource 7 [mem 0x80000000-0xafffffff window] [ 46.563777][ T1] pci_bus 0000:00: resource 8 [mem 0xc0000000-0xfebfffff window] [ 46.596117][ T1] pci_bus 0000:00: resource 9 [mem 0x580000000-0xd7fffffff window] [ 46.640985][ T1] pci 0000:00:01.0: Video device with shadowed ROM at [mem 0x000c0000-0x000dffff] [ 46.684924][ T1] pci 0000:00:01.0: pci_fixup_video+0x0/0x270 took 42865 usecs [ 46.776087][ T1] PCI Interrupt Link [GSIA] enabled at IRQ 16 [ 46.884250][ T1] pci 0000:00:1d.0: quirk_usb_early_handoff+0x0/0x105b took 154324 usecs [ 46.939408][ T1] PCI Interrupt Link [GSIB] enabled at IRQ 17 [ 47.001730][ T1] pci 0000:00:1d.1: quirk_usb_early_handoff+0x0/0x105b took 77827 usecs [ 47.056342][ T1] PCI Interrupt Link [GSIC] enabled at IRQ 18 [ 47.100872][ T1] pci 0000:00:1d.2: quirk_usb_early_handoff+0x0/0x105b took 58699 usecs [ 47.156604][ T1] PCI Interrupt Link [GSID] enabled at IRQ 19 [ 47.249359][ T1] pci 0000:00:1d.7: quirk_usb_early_handoff+0x0/0x105b took 107277 usecs [ 47.276806][ T1] PCI: CLS 0 bytes, default 64 [ 47.336726][ T1] PCI-DMA: Using software bounce buffering for IO (SWIOTLB) [ 47.375030][ T1] software IO TLB: mapped [mem 0x7ac00000-0x7ec00000] (64MB) [ 47.462707][ T1] kvm: no hardware support [ 47.485263][ T1] has_svm: not amd or hygon [ 47.503266][ T1] kvm: no hardware support [ 47.532293][ T1] clocksource: tsc: mask: 0xffffffffffffffff max_cycles: 0x1cd4c92266a, max_idle_ns: 440795223404 ns [ 47.596826][ T1] clocksource: Switched to clocksource tsc [ 47.626791][ T1] mce: Machine check injector initialized [ 47.680112][ T1] check: Scanning for low memory corruption every 60 seconds [ 48.397231][ T1] Initialise system trusted keyrings [ 48.443509][ T1] workingset: timestamp_bits=40 max_order=19 bucket_order=0 [ 48.847235][ T1] zbud: loaded [ 49.298164][ T1] DLM installed [ 49.410191][ T1] squashfs: version 4.0 (2009/01/31) Phillip Lougher [ 49.657768][ T1] FS-Cache: Netfs 'nfs' registered for caching [ 49.781096][ T1] NFS: Registering the id_resolver key type [ 49.836385][ T1] Key type id_resolver registered [ 49.866659][ T1] Key type id_legacy registered [ 49.907376][ T1] nfs4filelayout_init: NFSv4 File Layout Driver Registering... [ 49.961557][ T1] Installing knfsd (copyright (C) 1996 okir@monad.swb.de). [ 50.062088][ T1] FS-Cache: Netfs 'cifs' registered for caching [ 50.122402][ T1] Key type cifs.spnego registered [ 50.162107][ T1] Key type cifs.idmap registered [ 50.199453][ T1] ntfs: driver 2.1.32 [Flags: R/W]. [ 50.251910][ T1] fuse: init (API version 7.31) [ 50.353780][ T1] JFS: nTxBlock = 8192, nTxLock = 65536 [ 50.594178][ T1] SGI XFS with ACLs, security attributes, realtime, quota, no debug enabled [ 50.729586][ T1] 9p: Installing v9fs 9p2000 file system support [ 50.835873][ T1] FS-Cache: Netfs '9p' registered for caching [ 50.947905][ T1] ocfs2: Registered cluster interface o2cb [ 51.018295][ T1] ocfs2: Registered cluster interface user [ 51.121444][ T1] OCFS2 User DLM kernel interface loaded [ 51.329635][ T1] gfs2: GFS2 installed [ 51.464810][ T1] FS-Cache: Netfs 'ceph' registered for caching [ 51.562921][ T1] ceph: loaded (mds proto 32) [ 51.945438][ T1] NET: Registered protocol family 38 [ 52.014033][ T1] async_tx: api initialized (async) [ 52.067628][ T1] Key type asymmetric registered [ 52.135489][ T1] Asymmetric key parser 'x509' registered [ 52.216915][ T1] Asymmetric key parser 'pkcs8' registered [ 52.283078][ T1] Key type pkcs7_test registered [ 52.335634][ T1] Asymmetric key parser 'tpm_parser' registered [ 52.405505][ T1] Block layer SCSI generic (bsg) driver version 0.4 loaded (major 243) [ 52.515163][ T1] io scheduler mq-deadline registered [ 52.563348][ T1] io scheduler kyber registered [ 52.606672][ T1] io scheduler bfq registered [ 52.819400][ T1] hgafb: HGA card not detected. [ 52.891375][ T1] hgafb: probe of hgafb.0 failed with error -22 [ 52.968937][ T1] usbcore: registered new interface driver udlfb [ 53.104684][ T1] uvesafb: failed to execute /sbin/v86d [ 53.163269][ T1] uvesafb: make sure that the v86d helper is installed and executable [ 53.251647][ T1] uvesafb: Getting VBE info block failed (eax=0x4f00, err=-2) [ 53.311249][ T1] uvesafb: vbe_init() failed with -22 [ 53.359410][ T1] uvesafb: probe of uvesafb.0 failed with error -22 [ 53.436878][ T1] vga16fb: mapped to 0x00000000c7dff0ac [ 82.655831][ C2] hrtimer: interrupt took 65775783 ns [ 105.520651][ T1] Console: switching to colour frame buffer device 80x30 [ 147.131205][ T1] fb0: VGA16 VGA frame buffer device [ 147.506585][ T1] input: Power Button as /devices/LNXSYSTM:00/LNXPWRBN:00/input/input0 [ 147.676782][ T1] ACPI: Power Button [PWRF] [ 148.630122][ T7] ================================================================== [ 148.631837][ T7] BUG: KASAN: global-out-of-bounds in internal_create_group+0x9d8/0xb20 [ 148.631837][ T7] Read of size 8 at addr ffffffff8a2e5bd0 by task kworker/u17:0/7 [ 148.631837][ T7] [ 148.631837][ T7] CPU: 1 PID: 7 Comm: kworker/u17:0 Not tainted 5.8.0-syzkaller #0 [ 148.631837][ T7] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS rel-1.12.0-59-gc9ba5276e321-prebuilt.qemu.org 04/01/2014 [ 148.631837][ T7] Workqueue: events_unbound async_run_entry_fn [ 148.631837][ T7] Call Trace: [ 148.631837][ T7] dump_stack+0x18f/0x20d [ 148.631837][ T7] ? internal_create_group+0x9d8/0xb20 [ 148.631837][ T7] ? internal_create_group+0x9d8/0xb20 [ 148.631837][ T7] print_address_description.constprop.0.cold+0x5/0x497 [ 148.631837][ T7] ? vprintk_func+0x97/0x1a6 [ 148.631837][ T7] ? internal_create_group+0x9d8/0xb20 [ 148.631837][ T7] ? internal_create_group+0x9d8/0xb20 [ 148.631837][ T7] kasan_report.cold+0x1f/0x37 [ 148.631837][ T7] ? internal_create_group+0x9d8/0xb20 [ 148.631837][ T7] ? state_show+0xf0/0xf0 [ 148.631837][ T7] internal_create_group+0x9d8/0xb20 [ 148.631837][ T7] ? sysfs_remove_group+0x170/0x170 [ 148.631837][ T7] internal_create_groups.part.0+0x90/0x140 [ 148.631837][ T7] sysfs_create_groups+0x25/0x50 [ 148.631837][ T7] device_add+0x7fd/0x1c40 [ 148.631837][ T7] ? devlink_add_symlinks+0x450/0x450 [ 148.631837][ T7] ? lock_release+0x8e0/0x8e0 [ 148.631837][ T7] ? lock_downgrade+0x830/0x830 [ 148.631837][ T7] ? __schedule+0x88e/0x21e0 [ 148.631837][ T7] ? nd_synchronize+0x20/0x20 [ 148.631837][ T7] nd_async_device_register+0x12/0x80 [ 148.631837][ T7] async_run_entry_fn+0x121/0x530 [ 148.631837][ T7] process_one_work+0x94c/0x1670 [ 148.631837][ T7] ? lock_release+0x8e0/0x8e0 [ 148.631837][ T7] ? pwq_dec_nr_in_flight+0x2d0/0x2d0 [ 148.631837][ T7] ? rwlock_bug.part.0+0x90/0x90 [ 148.631837][ T7] worker_thread+0x64c/0x1120 [ 148.631837][ T7] ? process_one_work+0x1670/0x1670 [ 148.631837][ T7] kthread+0x3b5/0x4a0 [ 148.631837][ T7] ? __kthread_bind_mask+0xc0/0xc0 [ 148.631837][ T7] ? __kthread_bind_mask+0xc0/0xc0 [ 148.631837][ T7] ret_from_fork+0x1f/0x30 [ 148.631837][ T7] [ 148.631837][ T7] The buggy address belongs to the variable: [ 148.631837][ T7] nvdimm_firmware_attributes+0x10/0x40 [ 148.631837][ T7] [ 148.631837][ T7] Memory state around the buggy address: [ 148.631837][ T7] ffffffff8a2e5a80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 148.631837][ T7] ffffffff8a2e5b00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 148.631837][ T7] >ffffffff8a2e5b80: 00 00 00 00 f9 f9 f9 f9 00 00 f9 f9 f9 f9 f9 f9 [ 148.631837][ T7] ^ [ 148.631837][ T7] ffffffff8a2e5c00: 00 00 00 00 00 00 00 f9 f9 f9 f9 f9 00 00 00 00 [ 148.631837][ T7] ffffffff8a2e5c80: 00 00 00 f9 f9 f9 f9 f9 00 00 00 00 00 00 00 f9 [ 148.631837][ T7] ================================================================== [ 148.631837][ T7] Disabling lock debugging due to kernel taint [ 150.208344][ T7] Kernel panic - not syncing: panic_on_warn set ... [ 150.213327][ T7] CPU: 1 PID: 7 Comm: kworker/u17:0 Tainted: G B 5.8.0-syzkaller #0 [ 150.213327][ T7] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS rel-1.12.0-59-gc9ba5276e321-prebuilt.qemu.org 04/01/2014 [ 150.213327][ T7] Workqueue: events_unbound async_run_entry_fn [ 150.213327][ T7] Call Trace: [ 150.213327][ T7] dump_stack+0x18f/0x20d [ 150.213327][ T7] ? internal_create_group+0x900/0xb20 [ 150.213327][ T7] panic+0x2e3/0x75c [ 150.213327][ T7] ? __warn_printk+0xf3/0xf3 [ 150.213327][ T7] ? preempt_schedule_common+0x59/0xc0 [ 150.213327][ T7] ? internal_create_group+0x9d8/0xb20 [ 150.213327][ T7] ? preempt_schedule_thunk+0x16/0x18 [ 150.213327][ T7] ? trace_hardirqs_on+0x55/0x220 [ 150.213327][ T7] ? internal_create_group+0x9d8/0xb20 [ 150.213327][ T7] ? internal_create_group+0x9d8/0xb20 [ 150.213327][ T7] end_report+0x4d/0x53 [ 150.213327][ T7] kasan_report.cold+0xd/0x37 [ 150.213327][ T7] ? internal_create_group+0x9d8/0xb20 [ 150.213327][ T7] ? state_show+0xf0/0xf0 [ 150.213327][ T7] internal_create_group+0x9d8/0xb20 [ 150.213327][ T7] ? sysfs_remove_group+0x170/0x170 [ 150.213327][ T7] internal_create_groups.part.0+0x90/0x140 [ 150.213327][ T7] sysfs_create_groups+0x25/0x50 [ 150.213327][ T7] device_add+0x7fd/0x1c40 [ 150.213327][ T7] ? devlink_add_symlinks+0x450/0x450 [ 150.213327][ T7] ? lock_release+0x8e0/0x8e0 [ 150.213327][ T7] ? lock_downgrade+0x830/0x830 [ 150.213327][ T7] ? __schedule+0x88e/0x21e0 [ 150.213327][ T7] ? nd_synchronize+0x20/0x20 [ 150.213327][ T7] nd_async_device_register+0x12/0x80 [ 150.213327][ T7] async_run_entry_fn+0x121/0x530 [ 150.213327][ T7] process_one_work+0x94c/0x1670 [ 150.213327][ T7] ? lock_release+0x8e0/0x8e0 [ 150.213327][ T7] ? pwq_dec_nr_in_flight+0x2d0/0x2d0 [ 150.213327][ T7] ? rwlock_bug.part.0+0x90/0x90 [ 150.213327][ T7] worker_thread+0x64c/0x1120 [ 150.213327][ T7] ? process_one_work+0x1670/0x1670 [ 150.213327][ T7] kthread+0x3b5/0x4a0 [ 150.213327][ T7] ? __kthread_bind_mask+0xc0/0xc0 [ 150.213327][ T7] ? __kthread_bind_mask+0xc0/0xc0 [ 150.213327][ T7] ret_from_fork+0x1f/0x30 [ 150.213327][ T7] Kernel Offset: disabled [ 150.213327][ T7] Rebooting in 86400 seconds..