[ 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 [ 0.000119][ T0] kvm-clock: cpu 0, msr becf001, primary cpu clock [ 0.000120][ T0] kvm-clock: using sched offset of 32604018897 cycles [ 0.049197][ T0] clocksource: kvm-clock: mask: 0xffffffffffffffff max_cycles: 0x1cd42e4dffb, max_idle_ns: 881590591483 ns [ 0.195841][ T0] tsc: Detected 2000.164 MHz processor [ 0.286416][ T0] last_pfn = 0x7ffdd max_arch_pfn = 0x400000000 [ 0.377841][ T0] x86/PAT: Configuration [0-7]: WB WC UC- UC WB WP UC- WT [ 0.570159][ T0] found SMP MP-table at [mem 0x000f5a40-0x000f5a4f] [ 0.675636][ T0] check: Scanning 1 areas for low memory corruption [ 0.802378][ T0] ACPI: Early table checksum verification disabled [ 0.855512][ T0] ACPI: RSDP 0x00000000000F5870 000014 (v00 BOCHS ) [ 0.904397][ T0] ACPI: RSDT 0x000000007FFE1F9D 000040 (v01 BOCHS BXPCRSDT 00000001 BXPC 00000001) [ 0.983584][ T0] ACPI: FACP 0x000000007FFE1860 0000F4 (v03 BOCHS BXPCFACP 00000001 BXPC 00000001) [ 1.071430][ T0] ACPI: DSDT 0x000000007FFDF040 002820 (v01 BOCHS BXPCDSDT 00000001 BXPC 00000001) [ 1.166222][ T0] ACPI: FACS 0x000000007FFDF000 000040 [ 1.221345][ T0] ACPI: APIC 0x000000007FFE1954 0000B0 (v01 BOCHS BXPCAPIC 00000001 BXPC 00000001) [ 1.315411][ T0] ACPI: HPET 0x000000007FFE1A04 000038 (v01 BOCHS BXPCHPET 00000001 BXPC 00000001) [ 1.399475][ T0] ACPI: SRAT 0x000000007FFE1A3C 000178 (v01 BOCHS BXPCSRAT 00000001 BXPC 00000001) [ 1.469993][ T0] ACPI: MCFG 0x000000007FFE1BB4 00003C (v01 BOCHS BXPCMCFG 00000001 BXPC 00000001) [ 1.538619][ T0] ACPI: SSDT 0x000000007FFE1BF0 0002CD (v01 BOCHS NVDIMM 00000001 BXPC 00000001) [ 1.606196][ T0] ACPI: NFIT 0x000000007FFE1EBD 0000E0 (v01 BOCHS BXPCNFIT 00000001 BXPC 00000001) [ 1.684272][ T0] SRAT: PXM 0 -> APIC 0x00 -> Node 0 [ 1.719207][ T0] SRAT: PXM 0 -> APIC 0x01 -> Node 0 [ 1.751940][ T0] SRAT: PXM 0 -> APIC 0x02 -> Node 0 [ 1.788533][ T0] SRAT: PXM 0 -> APIC 0x03 -> Node 0 [ 1.823431][ T0] SRAT: PXM 1 -> APIC 0x04 -> Node 1 [ 1.848793][ T0] SRAT: PXM 1 -> APIC 0x05 -> Node 1 [ 1.874488][ T0] SRAT: PXM 1 -> APIC 0x06 -> Node 1 [ 1.899600][ T0] SRAT: PXM 1 -> APIC 0x07 -> Node 1 [ 1.928899][ T0] ACPI: SRAT: Node 0 PXM 0 [mem 0x00000000-0x0009ffff] [ 1.990151][ T0] ACPI: SRAT: Node 0 PXM 0 [mem 0x00100000-0x3fffffff] [ 2.048214][ T0] ACPI: SRAT: Node 1 PXM 1 [mem 0x40000000-0x7fffffff] [ 2.115040][ T0] ACPI: SRAT: Node 1 PXM 1 [mem 0x100000000-0x57fffffff] hotplug [ 2.194476][ T0] NUMA: Node 0 [mem 0x00000000-0x0009ffff] + [mem 0x00100000-0x3fffffff] -> [mem 0x00000000-0x3fffffff] [ 2.300289][ T0] Faking node 0 at [mem 0x0000000000000000-0x000000003fffffff] (1024MB) [ 2.391129][ T0] Faking node 1 at [mem 0x0000000040000000-0x000000007ffdcfff] (1023MB) [ 2.486009][ T0] NODE_DATA(0) allocated [mem 0x3fffb000-0x3fffffff] [ 2.571495][ T0] NODE_DATA(1) allocated [mem 0x7ffd7000-0x7ffdbfff] [ 3.064047][ T0] Zone ranges: [ 3.107330][ T0] DMA [mem 0x0000000000001000-0x0000000000ffffff] [ 3.173455][ T0] DMA32 [mem 0x0000000001000000-0x000000007ffdcfff] [ 3.249052][ T0] Normal empty [ 3.284531][ T0] Device empty [ 3.327916][ T0] Movable zone start for each node [ 3.381087][ T0] Early memory node ranges [ 3.429390][ T0] node 0: [mem 0x0000000000001000-0x000000000009efff] [ 3.507105][ T0] node 0: [mem 0x0000000000100000-0x000000003fffffff] [ 3.587685][ T0] node 1: [mem 0x0000000040000000-0x000000007ffdcfff] [ 3.672868][ T0] Zeroed struct page in unavailable ranges: 133 pages [ 3.673047][ T0] Initmem setup node 0 [mem 0x0000000000001000-0x000000003fffffff] [ 3.861423][ T0] Initmem setup node 1 [mem 0x0000000040000000-0x000000007ffdcfff] [ 11.044175][ T0] kasan: KernelAddressSanitizer initialized [ 11.149450][ T0] ACPI: PM-Timer IO Port: 0x608 [ 11.185611][ T0] ACPI: LAPIC_NMI (acpi_id[0xff] dfl dfl lint[0x1]) [ 11.225422][ T0] IOAPIC[0]: apic_id 0, version 17, address 0xfec00000, GSI 0-23 [ 11.281153][ T0] ACPI: INT_SRC_OVR (bus 0 bus_irq 0 global_irq 2 dfl dfl) [ 11.323241][ T0] ACPI: INT_SRC_OVR (bus 0 bus_irq 5 global_irq 5 high level) [ 11.375205][ T0] ACPI: INT_SRC_OVR (bus 0 bus_irq 9 global_irq 9 high level) [ 11.427921][ T0] ACPI: INT_SRC_OVR (bus 0 bus_irq 10 global_irq 10 high level) [ 11.483930][ T0] ACPI: INT_SRC_OVR (bus 0 bus_irq 11 global_irq 11 high level) [ 11.521299][ T0] Using ACPI (MADT) for SMP configuration information [ 11.556930][ T0] ACPI: HPET id: 0x8086a201 base: 0xfed00000 [ 11.588630][ T0] TSC deadline timer available [ 11.609297][ T0] smpboot: Allowing 8 CPUs, 4 hotplug CPUs [ 11.650957][ T0] kvm-guest: KVM setup pv remote TLB flush [ 11.685183][ T0] PM: hibernation: Registered nosave memory: [mem 0x00000000-0x00000fff] [ 11.722061][ T0] PM: hibernation: Registered nosave memory: [mem 0x0009f000-0x0009ffff] [ 11.767335][ T0] PM: hibernation: Registered nosave memory: [mem 0x000a0000-0x000effff] [ 11.803270][ T0] PM: hibernation: Registered nosave memory: [mem 0x000f0000-0x000fffff] [ 11.864197][ T0] [mem 0xc0000000-0xfed1bfff] available for PCI devices [ 11.913344][ T0] Booting paravirtualized kernel on KVM [ 11.958544][ T0] clocksource: refined-jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604462750000 ns [ 12.110178][ T0] setup_percpu: NR_CPUS:64 nr_cpumask_bits:64 nr_cpu_ids:8 nr_node_ids:2 [ 12.269412][ T0] percpu: Embedded 65 pages/cpu s226696 r8192 d31352 u1048576 [ 12.335624][ T0] kvm-guest: stealtime: cpu 0, msr 2ce20a40 [ 12.385322][ T0] kvm-guest: PV spinlocks enabled [ 12.420186][ T0] PV qspinlock hash table entries: 256 (order: 0, 4096 bytes, linear) [ 12.502957][ T0] Built 2 zonelists, mobility grouping on. Total pages: 515942 [ 12.565683][ T0] Policy zone: DMA32 [ 12.593588][ 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 [ 13.122824][ T0] mem auto-init: stack:off, heap alloc:on, heap free:off [ 14.556651][ T0] Memory: 1503356K/2096620K available (116743K kernel code, 17674K rwdata, 21636K rodata, 2792K init, 23936K bss, 593008K reserved, 0K cma-reserved) [ 14.870355][ T0] Running RCU self tests [ 14.893024][ T0] rcu: Preemptible hierarchical RCU implementation. [ 14.925919][ T0] rcu: RCU lockdep checking is enabled. [ 14.950163][ T0] rcu: RCU restricting CPUs from NR_CPUS=64 to nr_cpu_ids=8. [ 14.988283][ T0] rcu: RCU callback double-/use-after-free debug enabled. [ 15.019916][ T0] rcu: RCU debug extended QS entry/exit. [ 15.045979][ T0] All grace periods are expedited (rcu_expedited). [ 15.075969][ T0] Trampoline variant of Tasks RCU enabled. [ 15.102487][ T0] rcu: RCU calculated value of scheduler-enlistment delay is 10 jiffies. [ 15.138554][ T0] rcu: Adjusting geometry for rcu_fanout_leaf=16, nr_cpu_ids=8 [ 15.194517][ T0] NR_IRQS: 4352, nr_irqs: 488, preallocated irqs: 16 [ 15.260510][ T0] random: get_random_bytes called from start_kernel+0x23b/0x46a with crng_init=0 [ 15.766863][ T0] Console: colour VGA+ 80x25 [ 15.900910][ T0] printk: console [ttyS0] enabled [ 15.900910][ T0] printk: console [ttyS0] enabled [ 16.001500][ T0] printk: bootconsole [earlyser0] disabled [ 16.001500][ T0] printk: bootconsole [earlyser0] disabled [ 16.109323][ T0] Lock dependency validator: Copyright (c) 2006 Red Hat, Inc., Ingo Molnar [ 16.189058][ T0] ... MAX_LOCKDEP_SUBCLASSES: 8 [ 16.236609][ T0] ... MAX_LOCK_DEPTH: 48 [ 16.283058][ T0] ... MAX_LOCKDEP_KEYS: 8192 [ 16.330598][ T0] ... CLASSHASH_SIZE: 4096 [ 16.378399][ T0] ... MAX_LOCKDEP_ENTRIES: 32768 [ 16.420988][ T0] ... MAX_LOCKDEP_CHAINS: 65536 [ 16.456668][ T0] ... CHAINHASH_SIZE: 32768 [ 16.487718][ T0] memory used by lock dependency info: 6301 kB [ 16.524200][ T0] memory used for stack traces: 4224 kB [ 16.554943][ T0] per task-struct memory footprint: 1920 bytes [ 16.597026][ T0] mempolicy: Enabling automatic NUMA balancing. Configure with numa_balancing= or the kernel.numa_balancing sysctl [ 16.683660][ T0] ACPI: Core revision 20200717 [ 16.763473][ T0] clocksource: hpet: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604467 ns [ 16.892960][ T0] APIC: Switch to symmetric I/O mode setup [ 16.992444][ T0] x2apic enabled [ 17.072318][ T0] Switched APIC routing to physical x2apic. [ 17.132870][ T0] kvm-guest: setup PV IPIs [ 17.322729][ T0] ..TIMER: vector=0x30 apic1=0 pin1=2 apic2=-1 pin2=-1 [ 17.393070][ T0] clocksource: tsc-early: mask: 0xffffffffffffffff max_cycles: 0x1cd4c92266a, max_idle_ns: 440795223404 ns [ 17.506618][ T0] Calibrating delay loop (skipped) preset value.. 4000.32 BogoMIPS (lpj=20001640) [ 17.514685][ T0] pid_max: default: 32768 minimum: 301 [ 17.550369][ T0] LSM: Security Framework initializing [ 17.553123][ T0] LSM: security= is ignored because it is superseded by lsm= [ 17.565489][ T0] Yama: becoming mindful. [ 17.584566][ T0] SELinux: Initializing. [ 17.609241][ T0] TOMOYO Linux initialized [ 17.618257][ T0] LSM support for eBPF active [ 17.683146][ T0] Dentry cache hash table entries: 262144 (order: 9, 2097152 bytes, vmalloc) [ 17.718334][ T0] Inode-cache hash table entries: 131072 (order: 8, 1048576 bytes, vmalloc) [ 17.725502][ T0] Mount-cache hash table entries: 4096 (order: 3, 32768 bytes, vmalloc) [ 17.733333][ T0] Mountpoint-cache hash table entries: 4096 (order: 3, 32768 bytes, vmalloc) [ 18.044291][ T0] x86/cpu: User Mode Instruction Prevention (UMIP) activated [ 18.092862][ T0] Last level iTLB entries: 4KB 0, 2MB 0, 4MB 0 [ 18.102647][ T0] Last level dTLB entries: 4KB 0, 2MB 0, 4MB 0, 1GB 0 [ 18.116772][ T0] Spectre V1 : Mitigation: usercopy/swapgs barriers and __user pointer sanitization [ 18.124944][ T0] Spectre V2 : Spectre mitigation: kernel not compiled with retpoline; no mitigation available! [ 18.126519][ T0] Speculative Store Bypass: Mitigation: Speculative Store Bypass disabled via prctl [ 18.153069][ T0] TAA: Mitigation: Clear CPU buffers [ 18.162645][ T0] MDS: Mitigation: Clear CPU buffers [ 18.541052][ T0] Freeing SMP alternatives memory: 104K [ 19.279467][ T1] smpboot: CPU0: Intel(R) Xeon(R) CPU @ 2.00GHz (family: 0x6, model: 0x55, stepping: 0x3) [ 19.384456][ T1] Performance Events: unsupported p6 CPU model 85 no PMU driver, software events only. [ 19.422495][ T1] rcu: Hierarchical SRCU implementation. [ 19.467926][ T1] dyndbg: Ignore empty _ddebug table in a CONFIG_DYNAMIC_DEBUG_CORE build [ 19.496628][ T1] NMI watchdog: Perf NMI watchdog permanently disabled [ 19.557135][ T1] smp: Bringing up secondary CPUs ... [ 19.635178][ T1] x86: Booting SMP configuration: [ 19.644573][ T1] .... node #0, CPUs: #1 [ 2.110133][ T0] kvm-clock: cpu 1, msr becf041, secondary cpu clock [ 19.851299][ T15] kvm-guest: stealtime: cpu 1, msr 2cf20a40 [ 19.907264][ 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. [ 19.917801][ 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. [ 19.966460][ T1] #2 [ 2.110133][ T0] kvm-clock: cpu 2, msr becf081, secondary cpu clock [ 20.075115][ T20] kvm-guest: stealtime: cpu 2, msr 2d020a40 [ 20.148766][ T1] #3 [ 2.110133][ T0] kvm-clock: cpu 3, msr becf0c1, secondary cpu clock [ 20.267448][ T25] kvm-guest: stealtime: cpu 3, msr 2d120a40 [ 20.304381][ T1] smp: Brought up 2 nodes, 4 CPUs [ 20.313370][ T1] smpboot: Max logical packages: 2 [ 20.323226][ T1] smpboot: Total of 4 processors activated (16001.31 BogoMIPS) [ 20.456262][ T1] devtmpfs: initialized [ 20.494841][ T1] x86/mm: Memory block size: 128MB [ 20.710272][ T1] clocksource: jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604462750000 ns [ 20.712632][ T34] kworker/u17:0 (34) used greatest stack depth: 27656 bytes left [ 20.726804][ T1] futex hash table entries: 2048 (order: 6, 262144 bytes, vmalloc) [ 20.768277][ T1] xor: automatically using best checksumming function avx [ 20.820739][ T1] PM: RTC time: 21:46:12, date: 2020-08-16 [ 20.911405][ T1] NET: Registered protocol family 16 [ 20.952569][ T1] audit: initializing netlink subsys (disabled) [ 20.987631][ T40] audit: type=2000 audit(1597614369.409:1): state=initialized audit_enabled=0 res=1 [ 21.004426][ T41] kworker/u17:0 (41) used greatest stack depth: 27544 bytes left [ 21.053532][ T1] thermal_sys: Registered thermal governor 'step_wise' [ 21.053922][ T1] thermal_sys: Registered thermal governor 'user_space' [ 21.223509][ T1] cpuidle: using governor menu [ 21.251601][ T1] NET: Registered protocol family 42 [ 21.312973][ T1] ACPI: bus type PCI registered [ 21.354385][ T1] dca service started, version 1.12.1 [ 21.374896][ T1] PCI: MMCONFIG for domain 0000 [bus 00-ff] at [mem 0xb0000000-0xbfffffff] (base 0xb0000000) [ 21.383592][ T1] PCI: MMCONFIG at [mem 0xb0000000-0xbfffffff] reserved in E820 [ 22.159187][ T1] PCI: Using configuration type 1 for base access [ 22.738756][ T701] kworker/u17:8 (701) used greatest stack depth: 27040 bytes left [ 23.176647][ T1] HugeTLB registered 2.00 MiB page size, pre-allocated 0 pages [ 23.495123][ T1] cryptd: max_cpu_qlen set to 1000 [ 23.947618][ T1] raid6: avx512x4 gen() 13185 MB/s [ 24.167129][ T1] raid6: avx512x4 xor() 6002 MB/s [ 24.373475][ T1] raid6: avx512x2 gen() 12032 MB/s [ 24.552991][ T1] raid6: avx512x2 xor() 5755 MB/s [ 24.744134][ T1] raid6: avx512x1 gen() 7158 MB/s [ 24.946322][ T1] raid6: avx512x1 xor() 2821 MB/s [ 25.172291][ T1] raid6: avx2x4 gen() 8705 MB/s [ 25.385497][ T1] raid6: avx2x4 xor() 4494 MB/s [ 25.606501][ T1] raid6: avx2x2 gen() 6078 MB/s [ 25.832632][ T1] raid6: avx2x2 xor() 2489 MB/s [ 26.043213][ T1] raid6: avx2x1 gen() 3723 MB/s [ 26.280303][ T1] raid6: avx2x1 xor() 1365 MB/s [ 26.516240][ T1] raid6: sse2x4 gen() 4134 MB/s [ 26.766780][ T1] raid6: sse2x4 xor() 2196 MB/s [ 26.994397][ T1] raid6: sse2x2 gen() 2716 MB/s [ 27.240835][ T1] raid6: sse2x2 xor() 1325 MB/s [ 27.453709][ T1] raid6: sse2x1 gen() 1733 MB/s [ 27.700721][ T1] raid6: sse2x1 xor() 650 MB/s [ 27.762897][ T1] raid6: using algorithm avx512x4 gen() 13185 MB/s [ 27.852650][ T1] raid6: .... xor() 6002 MB/s, rmw enabled [ 27.925007][ T1] raid6: using avx512x2 recovery algorithm [ 28.029811][ T1] ACPI: Added _OSI(Module Device) [ 28.093160][ T1] ACPI: Added _OSI(Processor Device) [ 28.153420][ T1] ACPI: Added _OSI(3.0 _SCP Extensions) [ 28.202957][ T1] ACPI: Added _OSI(Processor Aggregator Device) [ 28.263070][ T1] ACPI: Added _OSI(Linux-Dell-Video) [ 28.333290][ T1] ACPI: Added _OSI(Linux-Lenovo-NV-HDMI-Audio) [ 28.512632][ T1] ACPI: Added _OSI(Linux-HPI-Hybrid-Graphics) [ 28.821787][ T1] ACPI: 2 ACPI AML tables successfully acquired and loaded [ 29.200937][ T1] ACPI: Interpreter enabled [ 29.232632][ T1] ACPI: (supports S0 S3 S4 S5) [ 29.250754][ T1] ACPI: Using IOAPIC for interrupt routing [ 29.290763][ T1] PCI: Using host bridge windows from ACPI; if necessary, use "pci=nocrs" and report a bug [ 29.352160][ T1] ACPI: Enabled 3 GPEs in block 00 to 3F [ 29.947714][ T1] ACPI: PCI Root Bridge [PCI0] (domain 0000 [bus 00-ff]) [ 29.962461][ T1] acpi PNP0A08:00: _OSC: OS supports [ExtendedConfig ASPM ClockPM Segments MSI HPX-Type3] [ 30.004193][ T1] acpi PNP0A08:00: _OSC: platform does not support [LTR] [ 30.019558][ T1] acpi PNP0A08:00: _OSC: OS now controls [PCIeHotplug PME AER PCIeCapability] [ 30.089198][ T1] PCI host bridge to bus 0000:00 [ 30.093442][ T1] pci_bus 0000:00: Unknown NUMA node; performance will be reduced [ 30.103882][ T1] pci_bus 0000:00: root bus resource [io 0x0000-0x0cf7 window] [ 30.113211][ T1] pci_bus 0000:00: root bus resource [io 0x0d00-0xffff window] [ 30.123312][ T1] pci_bus 0000:00: root bus resource [mem 0x000a0000-0x000bffff window] [ 30.133188][ T1] pci_bus 0000:00: root bus resource [mem 0x80000000-0xafffffff window] [ 30.143264][ T1] pci_bus 0000:00: root bus resource [mem 0xc0000000-0xfebfffff window] [ 30.153193][ T1] pci_bus 0000:00: root bus resource [mem 0x580000000-0xd7fffffff window] [ 30.163382][ T1] pci_bus 0000:00: root bus resource [bus 00-ff] [ 30.195181][ T1] pci 0000:00:00.0: [8086:29c0] type 00 class 0x060000 [ 30.330215][ T1] pci 0000:00:01.0: [1af4:1050] type 00 class 0x030000 [ 30.422632][ T1] pci 0000:00:01.0: reg 0x10: [mem 0xfe000000-0xfe7fffff pref] [ 30.542632][ T1] pci 0000:00:01.0: reg 0x18: [mem 0xfe800000-0xfe803fff 64bit pref] [ 30.692632][ T1] pci 0000:00:01.0: reg 0x20: [mem 0xfebf4000-0xfebf4fff] [ 30.872632][ T1] pci 0000:00:01.0: reg 0x30: [mem 0xfebe0000-0xfebeffff pref] [ 31.462632][ T1] pci 0000:00:02.0: [1af4:1000] type 00 class 0x020000 [ 31.561862][ T1] pci 0000:00:02.0: reg 0x10: [io 0xc680-0xc69f] [ 31.655709][ T1] pci 0000:00:02.0: reg 0x14: [mem 0xfebf5000-0xfebf5fff] [ 31.769512][ T1] pci 0000:00:02.0: reg 0x20: [mem 0xfe804000-0xfe807fff 64bit pref] [ 31.860821][ T1] pci 0000:00:02.0: reg 0x30: [mem 0xfeb40000-0xfeb7ffff pref] [ 32.078121][ T1] pci 0000:00:03.0: [8086:100e] type 00 class 0x020000 [ 32.179593][ T1] pci 0000:00:03.0: reg 0x10: [mem 0xfebc0000-0xfebdffff] [ 32.280529][ T1] pci 0000:00:03.0: reg 0x14: [io 0xc600-0xc63f] [ 32.376060][ T1] pci 0000:00:03.0: reg 0x30: [mem 0xfeb80000-0xfebbffff pref] [ 32.509854][ T1] pci 0000:00:04.0: [1274:5000] type 00 class 0x040100 [ 32.558946][ T1] pci 0000:00:04.0: reg 0x10: [io 0xc400-0xc4ff] [ 32.635309][ T1] pci 0000:00:05.0: [8086:2415] type 00 class 0x040100 [ 32.688655][ T1] pci 0000:00:05.0: reg 0x10: [io 0xc000-0xc3ff] [ 32.752616][ T1] pci 0000:00:05.0: reg 0x14: [io 0xc500-0xc5ff] [ 32.861369][ T1] pci 0000:00:06.0: [8086:2668] type 00 class 0x040300 [ 32.933094][ T1] pci 0000:00:06.0: reg 0x10: [mem 0xfebf0000-0xfebf3fff] [ 33.059327][ T1] pci 0000:00:07.0: [1af4:1009] type 00 class 0x000200 [ 33.122991][ T1] pci 0000:00:07.0: reg 0x10: [io 0xc6a0-0xc6bf] [ 33.177622][ T1] pci 0000:00:07.0: reg 0x14: [mem 0xfebf6000-0xfebf6fff] [ 33.269447][ T1] pci 0000:00:07.0: reg 0x20: [mem 0xfe808000-0xfe80bfff 64bit pref] [ 33.444593][ T1] pci 0000:00:1d.0: [8086:2934] type 00 class 0x0c0300 [ 33.549952][ T1] pci 0000:00:1d.0: reg 0x20: [io 0xc6c0-0xc6df] [ 33.623977][ T1] pci 0000:00:1d.1: [8086:2935] type 00 class 0x0c0300 [ 33.705820][ T1] pci 0000:00:1d.1: reg 0x20: [io 0xc6e0-0xc6ff] [ 33.788284][ T1] pci 0000:00:1d.2: [8086:2936] type 00 class 0x0c0300 [ 33.875791][ T1] pci 0000:00:1d.2: reg 0x20: [io 0xc700-0xc71f] [ 33.984753][ T1] pci 0000:00:1d.7: [8086:293a] type 00 class 0x0c0320 [ 34.090579][ T1] pci 0000:00:1d.7: reg 0x10: [mem 0xfebf7000-0xfebf7fff] [ 34.251178][ T1] pci 0000:00:1f.0: [8086:2918] type 00 class 0x060100 [ 34.458182][ T1] pci 0000:00:1f.0: quirk: [io 0x0600-0x067f] claimed by ICH6 ACPI/GPIO/TCO [ 34.592632][ T1] pci 0000:00:1f.0: quirk_ich7_lpc+0x0/0x190 took 156250 usecs [ 34.748683][ T1] pci 0000:00:1f.2: [8086:2922] type 00 class 0x010601 [ 34.937182][ T1] pci 0000:00:1f.2: reg 0x20: [io 0xc720-0xc73f] [ 35.054954][ T1] pci 0000:00:1f.2: reg 0x24: [mem 0xfebf8000-0xfebf8fff] [ 35.231646][ T1] pci 0000:00:1f.3: [8086:2930] type 00 class 0x0c0500 [ 35.378912][ T1] pci 0000:00:1f.3: reg 0x20: [io 0x0700-0x073f] [ 35.882632][ T1] ACPI: PCI Interrupt Link [LNKA] (IRQs 5 *10 11) [ 36.005697][ T1] ACPI: PCI Interrupt Link [LNKB] (IRQs 5 *10 11) [ 36.079134][ T1] ACPI: PCI Interrupt Link [LNKC] (IRQs 5 10 *11) [ 36.180184][ T1] ACPI: PCI Interrupt Link [LNKD] (IRQs 5 10 *11) [ 36.272166][ T1] ACPI: PCI Interrupt Link [LNKE] (IRQs 5 *10 11) [ 36.359750][ T1] ACPI: PCI Interrupt Link [LNKF] (IRQs 5 *10 11) [ 36.428411][ T1] ACPI: PCI Interrupt Link [LNKG] (IRQs 5 10 *11) [ 36.509223][ T1] ACPI: PCI Interrupt Link [LNKH] (IRQs 5 10 *11) [ 36.607670][ T1] ACPI: PCI Interrupt Link [GSIA] (IRQs *16) [ 36.683844][ T1] ACPI: PCI Interrupt Link [GSIB] (IRQs *17) [ 36.753841][ T1] ACPI: PCI Interrupt Link [GSIC] (IRQs *18) [ 36.823844][ T1] ACPI: PCI Interrupt Link [GSID] (IRQs *19) [ 36.893807][ T1] ACPI: PCI Interrupt Link [GSIE] (IRQs *20) [ 36.983874][ T1] ACPI: PCI Interrupt Link [GSIF] (IRQs *21) [ 37.064064][ T1] ACPI: PCI Interrupt Link [GSIG] (IRQs *22) [ 37.164177][ T1] ACPI: PCI Interrupt Link [GSIH] (IRQs *23) [ 37.582632][ T1] iommu: Default domain type: Translated [ 37.749932][ T1] pci 0000:00:01.0: vgaarb: setting as boot VGA device [ 37.752632][ T1] pci 0000:00:01.0: vgaarb: VGA device added: decodes=io+mem,owns=io+mem,locks=none [ 37.753535][ T1] pci 0000:00:01.0: vgaarb: bridge control possible [ 37.763318][ T1] vgaarb: loaded [ 37.946408][ T1] SCSI subsystem initialized [ 38.048607][ T1] ACPI: bus type USB registered [ 38.105172][ T1] usbcore: registered new interface driver usbfs [ 38.165796][ T1] usbcore: registered new interface driver hub [ 38.213595][ T1] usbcore: registered new device driver usb [ 38.260248][ T1] mc: Linux media interface: v0.10 [ 38.293750][ T1] videodev: Linux video capture interface: v2.00 [ 38.351692][ T1] pps_core: LinuxPPS API ver. 1 registered [ 38.413660][ T1] pps_core: Software ver. 5.3.6 - Copyright 2005-2007 Rodolfo Giometti [ 38.514405][ T1] PTP clock support registered [ 38.566076][ T1] EDAC MC: Ver: 3.0.0 [ 38.682632][ T1] Advanced Linux Sound Architecture Driver Initialized. [ 38.852632][ T1] Bluetooth: Core ver 2.22 [ 38.898583][ T1] NET: Registered protocol family 31 [ 38.932877][ T1] Bluetooth: HCI device and connection manager initialized [ 38.984418][ T1] Bluetooth: HCI socket layer initialized [ 39.053064][ T1] Bluetooth: L2CAP socket layer initialized [ 39.115912][ T1] Bluetooth: SCO socket layer initialized [ 39.174868][ T1] NET: Registered protocol family 8 [ 39.232920][ T1] NET: Registered protocol family 20 [ 39.282632][ T1] NetLabel: Initializing [ 39.322955][ T1] NetLabel: domain hash size = 128 [ 39.383022][ T1] NetLabel: protocols = UNLABELED CIPSOv4 CALIPSO [ 39.445577][ T1] NetLabel: unlabeled traffic allowed by default [ 39.517128][ T1] nfc: nfc_init: NFC Core ver 0.1 [ 39.565868][ T1] NET: Registered protocol family 39 [ 39.606628][ T1] PCI: Using ACPI for IRQ routing [ 46.408297][ T1] hpet0: at MMIO 0xfed00000, IRQs 2, 8, 0 [ 46.413074][ T1] hpet0: 3 comparators, 64-bit 100.000000 MHz counter [ 46.447746][ T1] clocksource: Switched to clocksource kvm-clock [ 52.528295][ T1] VFS: Disk quotas dquot_6.6.0 [ 52.581500][ T1] VFS: Dquot-cache hash table entries: 512 (order 0, 4096 bytes) [ 52.728054][ T1] FS-Cache: Loaded [ 52.817671][ T1] CacheFiles: Loaded [ 52.890975][ T1] TOMOYO: 2.6.0 [ 52.934617][ T1] Mandatory Access Control activated. [ 53.010557][ T1] pnp: PnP ACPI init [ 53.227944][ T1] pnp: PnP ACPI: found 6 devices [ 53.755966][ T1] clocksource: acpi_pm: mask: 0xffffff max_cycles: 0xffffff, max_idle_ns: 2085701024 ns [ 53.956222][ T1] NET: Registered protocol family 2 [ 54.194140][ T1] tcp_listen_portaddr_hash hash table entries: 1024 (order: 4, 81920 bytes, vmalloc) [ 54.336196][ T1] TCP established hash table entries: 16384 (order: 5, 131072 bytes, vmalloc) [ 54.494777][ T1] TCP bind hash table entries: 16384 (order: 8, 1179648 bytes, vmalloc) [ 54.594329][ T1] TCP: Hash tables configured (established 16384 bind 16384) [ 54.731720][ T1] MPTCP token hash table entries: 2048 (order: 5, 180224 bytes, vmalloc) [ 54.854484][ T1] UDP hash table entries: 1024 (order: 5, 163840 bytes, vmalloc) [ 54.958748][ T1] UDP-Lite hash table entries: 1024 (order: 5, 163840 bytes, vmalloc) [ 55.091688][ T1] NET: Registered protocol family 1 [ 55.222067][ T1] RPC: Registered named UNIX socket transport module. [ 55.297955][ T1] RPC: Registered udp transport module. [ 55.352019][ T1] RPC: Registered tcp transport module. [ 55.417420][ T1] RPC: Registered tcp NFSv4.1 backchannel transport module. [ 55.528447][ T1] NET: Registered protocol family 44 [ 55.606140][ T1] pci_bus 0000:00: resource 4 [io 0x0000-0x0cf7 window] [ 55.689400][ T1] pci_bus 0000:00: resource 5 [io 0x0d00-0xffff window] [ 55.778286][ T1] pci_bus 0000:00: resource 6 [mem 0x000a0000-0x000bffff window] [ 55.857570][ T1] pci_bus 0000:00: resource 7 [mem 0x80000000-0xafffffff window] [ 55.935137][ T1] pci_bus 0000:00: resource 8 [mem 0xc0000000-0xfebfffff window] [ 56.015516][ T1] pci_bus 0000:00: resource 9 [mem 0x580000000-0xd7fffffff window] [ 56.128626][ T1] pci 0000:00:01.0: Video device with shadowed ROM at [mem 0x000c0000-0x000dffff] [ 56.271116][ T1] pci 0000:00:01.0: pci_fixup_video+0x0/0x270 took 142164 usecs [ 56.502174][ T1] PCI Interrupt Link [GSIA] enabled at IRQ 16 [ 56.791725][ T1] pci 0000:00:1d.0: quirk_usb_early_handoff+0x0/0x105b took 366060 usecs [ 56.940946][ T1] PCI Interrupt Link [GSIB] enabled at IRQ 17 [ 57.070351][ T1] pci 0000:00:1d.1: quirk_usb_early_handoff+0x0/0x105b took 146986 usecs [ 57.230588][ T1] PCI Interrupt Link [GSIC] enabled at IRQ 18 [ 57.338370][ T1] pci 0000:00:1d.2: quirk_usb_early_handoff+0x0/0x105b took 129066 usecs [ 57.471856][ T1] PCI Interrupt Link [GSID] enabled at IRQ 19 [ 57.594584][ T1] pci 0000:00:1d.7: quirk_usb_early_handoff+0x0/0x105b took 140553 usecs [ 57.699039][ T1] PCI: CLS 0 bytes, default 64 [ 57.898744][ T1] PCI-DMA: Using software bounce buffering for IO (SWIOTLB) [ 57.995060][ T1] software IO TLB: mapped [mem 0x7ac00000-0x7ec00000] (64MB) [ 58.168610][ T1] kvm: no hardware support [ 58.227290][ T1] has_svm: not amd or hygon [ 58.282550][ T1] kvm: no hardware support [ 58.337708][ T1] clocksource: tsc: mask: 0xffffffffffffffff max_cycles: 0x1cd4c92266a, max_idle_ns: 440795223404 ns [ 58.468316][ T1] clocksource: Switched to clocksource tsc [ 58.557420][ T1] mce: Machine check injector initialized [ 58.705734][ T1] check: Scanning for low memory corruption every 60 seconds [ 60.643160][ T1] Initialise system trusted keyrings [ 60.761403][ T1] workingset: timestamp_bits=40 max_order=19 bucket_order=0 [ 60.861753][ T1] zbud: loaded [ 60.989110][ T1] DLM installed [ 61.039510][ T1] squashfs: version 4.0 (2009/01/31) Phillip Lougher [ 61.159044][ T1] FS-Cache: Netfs 'nfs' registered for caching [ 61.230853][ T1] NFS: Registering the id_resolver key type [ 61.292240][ T1] Key type id_resolver registered [ 61.346637][ T1] Key type id_legacy registered [ 61.412172][ T1] nfs4filelayout_init: NFSv4 File Layout Driver Registering... [ 61.497313][ T1] Installing knfsd (copyright (C) 1996 okir@monad.swb.de). [ 61.645360][ T1] FS-Cache: Netfs 'cifs' registered for caching [ 61.737442][ T1] Key type cifs.spnego registered [ 61.797226][ T1] Key type cifs.idmap registered [ 61.840611][ T1] ntfs: driver 2.1.32 [Flags: R/W]. [ 61.892526][ T1] fuse: init (API version 7.31) [ 61.965384][ T1] JFS: nTxBlock = 8192, nTxLock = 65536 [ 62.317757][ T1] SGI XFS with ACLs, security attributes, realtime, quota, no debug enabled [ 62.466338][ T1] 9p: Installing v9fs 9p2000 file system support [ 62.545895][ T1] FS-Cache: Netfs '9p' registered for caching [ 62.632194][ T1] ocfs2: Registered cluster interface o2cb [ 62.705888][ T1] ocfs2: Registered cluster interface user [ 62.781394][ T1] OCFS2 User DLM kernel interface loaded [ 62.957506][ T1] gfs2: GFS2 installed [ 63.114267][ T1] FS-Cache: Netfs 'ceph' registered for caching [ 63.175474][ T1] ceph: loaded (mds proto 32) [ 63.351241][ T1] NET: Registered protocol family 38 [ 63.425259][ T1] async_tx: api initialized (async) [ 63.485302][ T1] Key type asymmetric registered [ 63.547597][ T1] Asymmetric key parser 'x509' registered [ 63.610704][ T1] Asymmetric key parser 'pkcs8' registered [ 63.684014][ T1] Key type pkcs7_test registered [ 63.726324][ T1] Asymmetric key parser 'tpm_parser' registered [ 63.790748][ T1] Block layer SCSI generic (bsg) driver version 0.4 loaded (major 243) [ 63.899835][ T1] io scheduler mq-deadline registered [ 63.948554][ T1] io scheduler kyber registered [ 63.999721][ T1] io scheduler bfq registered [ 64.169452][ T1] hgafb: HGA card not detected. [ 64.242040][ T1] hgafb: probe of hgafb.0 failed with error -22 [ 64.334522][ T1] usbcore: registered new interface driver udlfb [ 64.530855][ T1] uvesafb: failed to execute /sbin/v86d [ 64.616932][ T1] uvesafb: make sure that the v86d helper is installed and executable [ 64.734814][ T1] uvesafb: Getting VBE info block failed (eax=0x4f00, err=-2) [ 64.835977][ T1] uvesafb: vbe_init() failed with -22 [ 64.901885][ T1] uvesafb: probe of uvesafb.0 failed with error -22 [ 64.982925][ T1] vga16fb: mapped to 0x00000000c7052294 [ 82.857822][ C0] hrtimer: interrupt took 45448969 ns [ 145.468081][ T1] Console: switching to colour frame buffer device 80x30 [ 232.406151][ T1] fb0: VGA16 VGA frame buffer device [ 233.423902][ T1] input: Power Button as /devices/LNXSYSTM:00/LNXPWRBN:00/input/input0 [ 233.825798][ T1] ACPI: Power Button [PWRF] [ 235.223271][ T920] ================================================================== [ 235.223314][ T920] BUG: KASAN: global-out-of-bounds in internal_create_group+0x9d8/0xb20 [ 235.223314][ T920] Read of size 8 at addr ffffffff8a2e73d0 by task kworker/u17:9/920 [ 235.223314][ T920] [ 235.223314][ T920] CPU: 2 PID: 920 Comm: kworker/u17:9 Not tainted 5.9.0-rc1-syzkaller #0 [ 235.223314][ T920] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS rel-1.12.0-59-gc9ba5276e321-prebuilt.qemu.org 04/01/2014 [ 235.223314][ T920] Workqueue: events_unbound async_run_entry_fn [ 235.223314][ T920] Call Trace: [ 235.223314][ T920] dump_stack+0x18f/0x20d [ 235.223314][ T920] ? internal_create_group+0x9d8/0xb20 [ 235.223314][ T920] ? internal_create_group+0x9d8/0xb20 [ 235.223314][ T920] print_address_description.constprop.0.cold+0x5/0x497 [ 235.223314][ T920] ? vprintk_func+0x97/0x1a6 [ 235.223314][ T920] ? internal_create_group+0x9d8/0xb20 [ 236.304409][ T920] ? internal_create_group+0x9d8/0xb20 [ 236.304409][ T920] kasan_report.cold+0x1f/0x37 [ 236.304409][ T920] ? internal_create_group+0x9d8/0xb20 [ 236.304409][ T920] ? state_show+0xf0/0xf0 [ 236.304409][ T920] internal_create_group+0x9d8/0xb20 [ 236.304409][ T920] ? sysfs_remove_group+0x170/0x170 [ 236.304409][ T920] ? lockdep_hardirqs_on+0x76/0xf0 [ 236.304409][ T920] internal_create_groups.part.0+0x90/0x140 [ 236.304409][ T920] sysfs_create_groups+0x25/0x50 [ 236.304409][ T920] device_add+0x7fd/0x1c40 [ 236.304409][ T920] ? devlink_add_symlinks+0x450/0x450 [ 236.304409][ T920] ? lock_release+0x8e0/0x8e0 [ 236.304409][ T920] ? lock_downgrade+0x830/0x830 [ 236.304409][ T920] ? __schedule+0x88e/0x21e0 [ 236.304409][ T920] ? nd_synchronize+0x20/0x20 [ 236.304409][ T920] nd_async_device_register+0x12/0x80 [ 236.304409][ T920] async_run_entry_fn+0x121/0x530 [ 236.304409][ T920] process_one_work+0x94c/0x1670 [ 236.304409][ T920] ? lock_release+0x8e0/0x8e0 [ 236.304409][ T920] ? pwq_dec_nr_in_flight+0x2d0/0x2d0 [ 236.304409][ T920] ? rwlock_bug.part.0+0x90/0x90 [ 236.304409][ T920] worker_thread+0x64c/0x1120 [ 236.304409][ T920] ? __kthread_parkme+0x13f/0x1e0 [ 236.304409][ T920] ? process_one_work+0x1670/0x1670 [ 236.304409][ T920] kthread+0x3b5/0x4a0 [ 236.304409][ T920] ? __kthread_bind_mask+0xc0/0xc0 [ 236.304409][ T920] ? __kthread_bind_mask+0xc0/0xc0 [ 236.304409][ T920] ret_from_fork+0x1f/0x30 [ 236.304409][ T920] [ 236.304409][ T920] The buggy address belongs to the variable: [ 236.304409][ T920] nvdimm_firmware_attributes+0x10/0x40 [ 236.304409][ T920] [ 236.304409][ T920] Memory state around the buggy address: [ 236.304409][ T920] ffffffff8a2e7280: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 238.523914][ T920] ffffffff8a2e7300: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 238.523914][ T920] >ffffffff8a2e7380: 00 00 00 00 f9 f9 f9 f9 00 00 f9 f9 f9 f9 f9 f9 [ 238.523914][ T920] ^ [ 238.523914][ T920] ffffffff8a2e7400: 00 00 00 00 00 00 00 f9 f9 f9 f9 f9 00 00 00 00 [ 238.523914][ T920] ffffffff8a2e7480: 00 00 00 f9 f9 f9 f9 f9 00 00 00 00 00 00 00 f9 [ 238.523914][ T920] ================================================================== [ 238.523914][ T920] Disabling lock debugging due to kernel taint [ 239.117754][ T920] Kernel panic - not syncing: panic_on_warn set ... [ 239.122933][ T920] CPU: 2 PID: 920 Comm: kworker/u17:9 Tainted: G B 5.9.0-rc1-syzkaller #0 [ 239.122933][ T920] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS rel-1.12.0-59-gc9ba5276e321-prebuilt.qemu.org 04/01/2014 [ 239.122933][ T920] Workqueue: events_unbound async_run_entry_fn [ 239.122933][ T920] Call Trace: [ 239.122933][ T920] dump_stack+0x18f/0x20d [ 239.122933][ T920] ? internal_create_group+0x8f0/0xb20 [ 239.122933][ T920] panic+0x2e3/0x75c [ 239.122933][ T920] ? __warn_printk+0xf3/0xf3 [ 239.122933][ T920] ? preempt_schedule_common+0x59/0xc0 [ 239.122933][ T920] ? internal_create_group+0x9d8/0xb20 [ 239.122933][ T920] ? preempt_schedule_thunk+0x16/0x18 [ 239.122933][ T920] ? trace_hardirqs_on+0x55/0x220 [ 239.122933][ T920] ? internal_create_group+0x9d8/0xb20 [ 239.122933][ T920] ? internal_create_group+0x9d8/0xb20 [ 239.122933][ T920] end_report+0x4d/0x53 [ 239.122933][ T920] kasan_report.cold+0xd/0x37 [ 239.122933][ T920] ? internal_create_group+0x9d8/0xb20 [ 239.122933][ T920] ? state_show+0xf0/0xf0 [ 239.122933][ T920] internal_create_group+0x9d8/0xb20 [ 239.122933][ T920] ? sysfs_remove_group+0x170/0x170 [ 239.122933][ T920] ? lockdep_hardirqs_on+0x76/0xf0 [ 239.122933][ T920] internal_create_groups.part.0+0x90/0x140 [ 239.122933][ T920] sysfs_create_groups+0x25/0x50 [ 239.122933][ T920] device_add+0x7fd/0x1c40 [ 239.122933][ T920] ? devlink_add_symlinks+0x450/0x450 [ 240.544003][ T920] ? lock_release+0x8e0/0x8e0 [ 240.544003][ T920] ? lock_downgrade+0x830/0x830 [ 240.544003][ T920] ? __schedule+0x88e/0x21e0 [ 240.544003][ T920] ? nd_synchronize+0x20/0x20 [ 240.544003][ T920] nd_async_device_register+0x12/0x80 [ 240.544003][ T920] async_run_entry_fn+0x121/0x530 [ 240.544003][ T920] process_one_work+0x94c/0x1670 [ 240.544003][ T920] ? lock_release+0x8e0/0x8e0 [ 240.544003][ T920] ? pwq_dec_nr_in_flight+0x2d0/0x2d0 [ 240.544003][ T920] ? rwlock_bug.part.0+0x90/0x90 [ 240.544003][ T920] worker_thread+0x64c/0x1120 [ 240.544003][ T920] ? __kthread_parkme+0x13f/0x1e0 [ 240.544003][ T920] ? process_one_work+0x1670/0x1670 [ 240.544003][ T920] kthread+0x3b5/0x4a0 [ 240.544003][ T920] ? __kthread_bind_mask+0xc0/0xc0 [ 240.544003][ T920] ? __kthread_bind_mask+0xc0/0xc0 [ 240.544003][ T920] ret_from_fork+0x1f/0x30 [ 240.544003][ T920] Kernel Offset: disabled [ 240.544003][ T920] Rebooting in 86400 seconds..