[ 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 [ 0.000090][ T0] kvm-clock: cpu 0, msr becf001, primary cpu clock [ 0.000091][ T0] kvm-clock: using sched offset of 25325633314 cycles [ 0.023773][ T0] clocksource: kvm-clock: mask: 0xffffffffffffffff max_cycles: 0x1cd42e4dffb, max_idle_ns: 881590591483 ns [ 0.097836][ T0] tsc: Detected 2000.164 MHz processor [ 0.147529][ T0] last_pfn = 0x7ffdd max_arch_pfn = 0x400000000 [ 0.178307][ T0] x86/PAT: Configuration [0-7]: WB WC UC- UC WB WP UC- WT [ 0.234961][ T0] found SMP MP-table at [mem 0x000f5a40-0x000f5a4f] [ 0.265772][ T0] check: Scanning 1 areas for low memory corruption [ 0.295438][ T0] ACPI: Early table checksum verification disabled [ 0.325775][ T0] ACPI: RSDP 0x00000000000F5870 000014 (v00 BOCHS ) [ 0.355972][ T0] ACPI: RSDT 0x000000007FFE1F9D 000040 (v01 BOCHS BXPCRSDT 00000001 BXPC 00000001) [ 0.389602][ T0] ACPI: FACP 0x000000007FFE1860 0000F4 (v03 BOCHS BXPCFACP 00000001 BXPC 00000001) [ 0.427510][ T0] ACPI: DSDT 0x000000007FFDF040 002820 (v01 BOCHS BXPCDSDT 00000001 BXPC 00000001) [ 0.462452][ T0] ACPI: FACS 0x000000007FFDF000 000040 [ 0.492578][ T0] ACPI: APIC 0x000000007FFE1954 0000B0 (v01 BOCHS BXPCAPIC 00000001 BXPC 00000001) [ 0.537451][ T0] ACPI: HPET 0x000000007FFE1A04 000038 (v01 BOCHS BXPCHPET 00000001 BXPC 00000001) [ 0.572574][ T0] ACPI: SRAT 0x000000007FFE1A3C 000178 (v01 BOCHS BXPCSRAT 00000001 BXPC 00000001) [ 0.600276][ T0] ACPI: MCFG 0x000000007FFE1BB4 00003C (v01 BOCHS BXPCMCFG 00000001 BXPC 00000001) [ 0.629881][ T0] ACPI: SSDT 0x000000007FFE1BF0 0002CD (v01 BOCHS NVDIMM 00000001 BXPC 00000001) [ 0.661329][ T0] ACPI: NFIT 0x000000007FFE1EBD 0000E0 (v01 BOCHS BXPCNFIT 00000001 BXPC 00000001) [ 0.700322][ T0] SRAT: PXM 0 -> APIC 0x00 -> Node 0 [ 0.716189][ T0] SRAT: PXM 0 -> APIC 0x01 -> Node 0 [ 0.733313][ T0] SRAT: PXM 0 -> APIC 0x02 -> Node 0 [ 0.748914][ T0] SRAT: PXM 0 -> APIC 0x03 -> Node 0 [ 0.766056][ T0] SRAT: PXM 1 -> APIC 0x04 -> Node 1 [ 0.781755][ T0] SRAT: PXM 1 -> APIC 0x05 -> Node 1 [ 0.802542][ T0] SRAT: PXM 1 -> APIC 0x06 -> Node 1 [ 0.827280][ T0] SRAT: PXM 1 -> APIC 0x07 -> Node 1 [ 0.867081][ T0] ACPI: SRAT: Node 0 PXM 0 [mem 0x00000000-0x0009ffff] [ 0.901652][ T0] ACPI: SRAT: Node 0 PXM 0 [mem 0x00100000-0x3fffffff] [ 0.925919][ T0] ACPI: SRAT: Node 1 PXM 1 [mem 0x40000000-0x7fffffff] [ 0.944263][ T0] ACPI: SRAT: Node 1 PXM 1 [mem 0x100000000-0x57fffffff] hotplug [ 0.974605][ T0] NUMA: Node 0 [mem 0x00000000-0x0009ffff] + [mem 0x00100000-0x3fffffff] -> [mem 0x00000000-0x3fffffff] [ 1.014016][ T0] Faking node 0 at [mem 0x0000000000000000-0x000000003fffffff] (1024MB) [ 1.039862][ T0] Faking node 1 at [mem 0x0000000040000000-0x000000007ffdcfff] (1023MB) [ 1.071025][ T0] NODE_DATA(0) allocated [mem 0x3fffb000-0x3fffffff] [ 1.113031][ T0] NODE_DATA(1) allocated [mem 0x7ffd7000-0x7ffdbfff] [ 1.290633][ T0] Zone ranges: [ 1.305581][ T0] DMA [mem 0x0000000000001000-0x0000000000ffffff] [ 1.356767][ T0] DMA32 [mem 0x0000000001000000-0x000000007ffdcfff] [ 1.395396][ T0] Normal empty [ 1.414062][ T0] Device empty [ 1.431130][ T0] Movable zone start for each node [ 1.454746][ T0] Early memory node ranges [ 1.472322][ T0] node 0: [mem 0x0000000000001000-0x000000000009efff] [ 1.505930][ T0] node 0: [mem 0x0000000000100000-0x000000003fffffff] [ 1.540766][ T0] node 1: [mem 0x0000000040000000-0x000000007ffdcfff] [ 1.561482][ T0] Zeroed struct page in unavailable ranges: 133 pages [ 1.561521][ T0] Initmem setup node 0 [mem 0x0000000000001000-0x000000003fffffff] [ 1.626581][ T0] Initmem setup node 1 [mem 0x0000000040000000-0x000000007ffdcfff] [ 6.258938][ T0] kasan: KernelAddressSanitizer initialized [ 6.401166][ T0] ACPI: PM-Timer IO Port: 0x608 [ 6.443196][ T0] ACPI: LAPIC_NMI (acpi_id[0xff] dfl dfl lint[0x1]) [ 6.497014][ T0] IOAPIC[0]: apic_id 0, version 17, address 0xfec00000, GSI 0-23 [ 6.562996][ T0] ACPI: INT_SRC_OVR (bus 0 bus_irq 0 global_irq 2 dfl dfl) [ 6.637621][ T0] ACPI: INT_SRC_OVR (bus 0 bus_irq 5 global_irq 5 high level) [ 6.727861][ T0] ACPI: INT_SRC_OVR (bus 0 bus_irq 9 global_irq 9 high level) [ 6.775249][ T0] ACPI: INT_SRC_OVR (bus 0 bus_irq 10 global_irq 10 high level) [ 6.821161][ T0] ACPI: INT_SRC_OVR (bus 0 bus_irq 11 global_irq 11 high level) [ 6.874605][ T0] Using ACPI (MADT) for SMP configuration information [ 6.908070][ T0] ACPI: HPET id: 0x8086a201 base: 0xfed00000 [ 6.937088][ T0] TSC deadline timer available [ 6.960829][ T0] smpboot: Allowing 8 CPUs, 4 hotplug CPUs [ 6.996020][ T0] kvm-guest: KVM setup pv remote TLB flush [ 7.037198][ T0] PM: hibernation: Registered nosave memory: [mem 0x00000000-0x00000fff] [ 7.084166][ T0] PM: hibernation: Registered nosave memory: [mem 0x0009f000-0x0009ffff] [ 7.140106][ T0] PM: hibernation: Registered nosave memory: [mem 0x000a0000-0x000effff] [ 7.204400][ T0] PM: hibernation: Registered nosave memory: [mem 0x000f0000-0x000fffff] [ 7.267803][ T0] [mem 0xc0000000-0xfed1bfff] available for PCI devices [ 7.322773][ T0] Booting paravirtualized kernel on KVM [ 7.384377][ T0] clocksource: refined-jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604462750000 ns [ 7.531352][ T0] setup_percpu: NR_CPUS:64 nr_cpumask_bits:64 nr_cpu_ids:8 nr_node_ids:2 [ 7.673207][ T0] percpu: Embedded 65 pages/cpu s226696 r8192 d31352 u1048576 [ 7.726778][ T0] kvm-guest: stealtime: cpu 0, msr 2ce20a40 [ 7.754529][ T0] kvm-guest: PV spinlocks enabled [ 7.782312][ T0] PV qspinlock hash table entries: 256 (order: 0, 4096 bytes, linear) [ 7.836448][ T0] Built 2 zonelists, mobility grouping on. Total pages: 515942 [ 7.872937][ T0] Policy zone: DMA32 [ 7.893941][ 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 [ 8.359259][ T0] mem auto-init: stack:off, heap alloc:on, heap free:off [ 9.753791][ T0] Memory: 1503356K/2096620K available (116743K kernel code, 17673K rwdata, 21632K rodata, 2792K init, 23936K bss, 593008K reserved, 0K cma-reserved) [ 9.913690][ T0] Running RCU self tests [ 9.940402][ T0] rcu: Preemptible hierarchical RCU implementation. [ 9.982056][ T0] rcu: RCU lockdep checking is enabled. [ 10.020662][ T0] rcu: RCU restricting CPUs from NR_CPUS=64 to nr_cpu_ids=8. [ 10.069467][ T0] rcu: RCU callback double-/use-after-free debug enabled. [ 10.112032][ T0] rcu: RCU debug extended QS entry/exit. [ 10.146885][ T0] All grace periods are expedited (rcu_expedited). [ 10.177262][ T0] Trampoline variant of Tasks RCU enabled. [ 10.197544][ T0] rcu: RCU calculated value of scheduler-enlistment delay is 10 jiffies. [ 10.227842][ T0] rcu: Adjusting geometry for rcu_fanout_leaf=16, nr_cpu_ids=8 [ 10.304643][ T0] NR_IRQS: 4352, nr_irqs: 488, preallocated irqs: 16 [ 10.393620][ T0] random: get_random_bytes called from start_kernel+0x23b/0x46a with crng_init=0 [ 10.952070][ T0] Console: colour VGA+ 80x25 [ 11.086177][ T0] printk: console [ttyS0] enabled [ 11.086177][ T0] printk: console [ttyS0] enabled [ 11.168676][ T0] printk: bootconsole [earlyser0] disabled [ 11.168676][ T0] printk: bootconsole [earlyser0] disabled [ 11.261562][ T0] Lock dependency validator: Copyright (c) 2006 Red Hat, Inc., Ingo Molnar [ 11.325717][ T0] ... MAX_LOCKDEP_SUBCLASSES: 8 [ 11.366351][ T0] ... MAX_LOCK_DEPTH: 48 [ 11.414012][ T0] ... MAX_LOCKDEP_KEYS: 8192 [ 11.470857][ T0] ... CLASSHASH_SIZE: 4096 [ 11.526271][ T0] ... MAX_LOCKDEP_ENTRIES: 32768 [ 11.567953][ T0] ... MAX_LOCKDEP_CHAINS: 65536 [ 11.589516][ T0] ... CHAINHASH_SIZE: 32768 [ 11.607285][ T0] memory used by lock dependency info: 6301 kB [ 11.625225][ T0] memory used for stack traces: 4224 kB [ 11.639340][ T0] per task-struct memory footprint: 1920 bytes [ 11.661193][ T0] mempolicy: Enabling automatic NUMA balancing. Configure with numa_balancing= or the kernel.numa_balancing sysctl [ 11.712224][ T0] ACPI: Core revision 20200717 [ 11.748913][ T0] clocksource: hpet: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604467 ns [ 11.818866][ T0] APIC: Switch to symmetric I/O mode setup [ 11.869707][ T0] x2apic enabled [ 11.903952][ T0] Switched APIC routing to physical x2apic. [ 11.927450][ T0] kvm-guest: setup PV IPIs [ 12.033848][ T0] ..TIMER: vector=0x30 apic1=0 pin1=2 apic2=-1 pin2=-1 [ 12.058352][ T0] clocksource: tsc-early: mask: 0xffffffffffffffff max_cycles: 0x1cd4c92266a, max_idle_ns: 440795223404 ns [ 12.107928][ T0] Calibrating delay loop (skipped) preset value.. 4000.32 BogoMIPS (lpj=20001640) [ 12.117244][ T0] pid_max: default: 32768 minimum: 301 [ 12.132348][ T0] LSM: Security Framework initializing [ 12.136423][ T0] LSM: security= is ignored because it is superseded by lsm= [ 12.147469][ T0] Yama: becoming mindful. [ 12.162532][ T0] SELinux: Initializing. [ 12.170556][ T0] TOMOYO Linux initialized [ 12.178293][ T0] LSM support for eBPF active [ 12.211943][ T0] Dentry cache hash table entries: 262144 (order: 9, 2097152 bytes, vmalloc) [ 12.232281][ T0] Inode-cache hash table entries: 131072 (order: 8, 1048576 bytes, vmalloc) [ 12.237406][ T0] Mount-cache hash table entries: 4096 (order: 3, 32768 bytes, vmalloc) [ 12.246692][ T0] Mountpoint-cache hash table entries: 4096 (order: 3, 32768 bytes, vmalloc) [ 12.473022][ T0] x86/cpu: User Mode Instruction Prevention (UMIP) activated [ 12.516401][ T0] Last level iTLB entries: 4KB 0, 2MB 0, 4MB 0 [ 12.526193][ T0] Last level dTLB entries: 4KB 0, 2MB 0, 4MB 0, 1GB 0 [ 12.548713][ T0] Spectre V1 : Mitigation: usercopy/swapgs barriers and __user pointer sanitization [ 12.556806][ T0] Spectre V2 : Spectre mitigation: kernel not compiled with retpoline; no mitigation available! [ 12.558459][ T0] Speculative Store Bypass: Mitigation: Speculative Store Bypass disabled via prctl [ 12.587278][ T0] TAA: Mitigation: Clear CPU buffers [ 12.596189][ T0] MDS: Mitigation: Clear CPU buffers [ 12.907625][ T0] Freeing SMP alternatives memory: 104K [ 13.433898][ T1] smpboot: CPU0: Intel(R) Xeon(R) CPU @ 2.00GHz (family: 0x6, model: 0x55, stepping: 0x3) [ 13.518650][ T1] Performance Events: unsupported p6 CPU model 85 no PMU driver, software events only. [ 13.549027][ T1] rcu: Hierarchical SRCU implementation. [ 13.591432][ T1] dyndbg: Ignore empty _ddebug table in a CONFIG_DYNAMIC_DEBUG_CORE build [ 13.614129][ T1] NMI watchdog: Perf NMI watchdog permanently disabled [ 13.660977][ T1] smp: Bringing up secondary CPUs ... [ 13.726178][ T1] x86: Booting SMP configuration: [ 13.737798][ T1] .... node #0, CPUs: #1 [ 1.624319][ T0] kvm-clock: cpu 1, msr becf041, secondary cpu clock [ 13.916558][ T15] kvm-guest: stealtime: cpu 1, msr 2cf20a40 [ 13.979619][ 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. [ 13.986634][ 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. [ 14.033390][ T1] #2 [ 1.624319][ T0] kvm-clock: cpu 2, msr becf081, secondary cpu clock [ 14.158735][ T20] kvm-guest: stealtime: cpu 2, msr 2d020a40 [ 14.233860][ T1] #3 [ 1.624319][ T0] kvm-clock: cpu 3, msr becf0c1, secondary cpu clock [ 14.367711][ T25] kvm-guest: stealtime: cpu 3, msr 2d120a40 [ 14.427526][ T1] smp: Brought up 2 nodes, 4 CPUs [ 14.437008][ T1] smpboot: Max logical packages: 2 [ 14.446908][ T1] smpboot: Total of 4 processors activated (16001.31 BogoMIPS) [ 14.627708][ T1] devtmpfs: initialized [ 14.679064][ T1] x86/mm: Memory block size: 128MB [ 14.899103][ T1] clocksource: jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604462750000 ns [ 14.906178][ T33] kworker/u17:0 (33) used greatest stack depth: 27544 bytes left [ 14.922779][ T1] futex hash table entries: 2048 (order: 6, 262144 bytes, vmalloc) [ 14.959024][ T1] xor: automatically using best checksumming function avx [ 14.989340][ T1] PM: RTC time: 17:07:47, date: 2020-08-15 [ 15.090208][ T1] NET: Registered protocol family 16 [ 15.139816][ T1] audit: initializing netlink subsys (disabled) [ 15.217627][ T41] audit: type=2000 audit(1597511264.641:1): state=initialized audit_enabled=0 res=1 [ 15.290551][ T1] thermal_sys: Registered thermal governor 'step_wise' [ 15.290937][ T1] thermal_sys: Registered thermal governor 'user_space' [ 15.371454][ T1] cpuidle: using governor menu [ 15.483323][ T1] NET: Registered protocol family 42 [ 15.586830][ T1] ACPI: bus type PCI registered [ 15.665993][ T1] dca service started, version 1.12.1 [ 15.741579][ T1] PCI: MMCONFIG for domain 0000 [bus 00-ff] at [mem 0xb0000000-0xbfffffff] (base 0xb0000000) [ 15.828052][ T1] PCI: MMCONFIG at [mem 0xb0000000-0xbfffffff] reserved in E820 [ 16.529026][ T1] PCI: Using configuration type 1 for base access [ 17.704429][ T1] HugeTLB registered 2.00 MiB page size, pre-allocated 0 pages [ 18.001485][ T1] cryptd: max_cpu_qlen set to 1000 [ 18.433211][ T1] raid6: avx512x4 gen() 11110 MB/s [ 18.647639][ T1] raid6: avx512x4 xor() 4808 MB/s [ 18.861674][ T1] raid6: avx512x2 gen() 8935 MB/s [ 19.059948][ T1] raid6: avx512x2 xor() 4892 MB/s [ 19.276624][ T1] raid6: avx512x1 gen() 6002 MB/s [ 19.498810][ T1] raid6: avx512x1 xor() 2409 MB/s [ 19.724958][ T1] raid6: avx2x4 gen() 7298 MB/s [ 19.926622][ T1] raid6: avx2x4 xor() 3860 MB/s [ 20.137076][ T1] raid6: avx2x2 gen() 5034 MB/s [ 20.316321][ T1] raid6: avx2x2 xor() 2782 MB/s [ 20.496403][ T1] raid6: avx2x1 gen() 3569 MB/s [ 20.676302][ T1] raid6: avx2x1 xor() 1578 MB/s [ 20.856566][ T1] raid6: sse2x4 gen() 4656 MB/s [ 21.036469][ T1] raid6: sse2x4 xor() 2431 MB/s [ 21.216377][ T1] raid6: sse2x2 gen() 2571 MB/s [ 21.415421][ T1] raid6: sse2x2 xor() 1319 MB/s [ 21.601604][ T1] raid6: sse2x1 gen() 1552 MB/s [ 21.792920][ T1] raid6: sse2x1 xor() 692 MB/s [ 21.826508][ T1] raid6: using algorithm avx512x4 gen() 11110 MB/s [ 21.876372][ T1] raid6: .... xor() 4808 MB/s, rmw enabled [ 21.896793][ T1] raid6: using avx512x2 recovery algorithm [ 21.949247][ T1] ACPI: Added _OSI(Module Device) [ 21.986454][ T1] ACPI: Added _OSI(Processor Device) [ 22.026716][ T1] ACPI: Added _OSI(3.0 _SCP Extensions) [ 22.086899][ T1] ACPI: Added _OSI(Processor Aggregator Device) [ 22.140785][ T1] ACPI: Added _OSI(Linux-Dell-Video) [ 22.166430][ T1] ACPI: Added _OSI(Linux-Lenovo-NV-HDMI-Audio) [ 22.196373][ T1] ACPI: Added _OSI(Linux-HPI-Hybrid-Graphics) [ 22.350299][ T1] ACPI: 2 ACPI AML tables successfully acquired and loaded [ 22.509225][ T1] ACPI: Interpreter enabled [ 22.521829][ T1] ACPI: (supports S0 S3 S4 S5) [ 22.527376][ T1] ACPI: Using IOAPIC for interrupt routing [ 22.541405][ T1] PCI: Using host bridge windows from ACPI; if necessary, use "pci=nocrs" and report a bug [ 22.615275][ T1] ACPI: Enabled 3 GPEs in block 00 to 3F [ 23.036904][ T1] ACPI: PCI Root Bridge [PCI0] (domain 0000 [bus 00-ff]) [ 23.101857][ T1] acpi PNP0A08:00: _OSC: OS supports [ExtendedConfig ASPM ClockPM Segments MSI HPX-Type3] [ 23.219427][ T1] acpi PNP0A08:00: _OSC: platform does not support [LTR] [ 23.281015][ T1] acpi PNP0A08:00: _OSC: OS now controls [PCIeHotplug PME AER PCIeCapability] [ 23.400399][ T1] PCI host bridge to bus 0000:00 [ 23.447340][ T1] pci_bus 0000:00: Unknown NUMA node; performance will be reduced [ 23.517485][ T1] pci_bus 0000:00: root bus resource [io 0x0000-0x0cf7 window] [ 23.606842][ T1] pci_bus 0000:00: root bus resource [io 0x0d00-0xffff window] [ 23.689199][ T1] pci_bus 0000:00: root bus resource [mem 0x000a0000-0x000bffff window] [ 23.746424][ T1] pci_bus 0000:00: root bus resource [mem 0x80000000-0xafffffff window] [ 23.826791][ T1] pci_bus 0000:00: root bus resource [mem 0xc0000000-0xfebfffff window] [ 23.917040][ T1] pci_bus 0000:00: root bus resource [mem 0x580000000-0xd7fffffff window] [ 23.996758][ T1] pci_bus 0000:00: root bus resource [bus 00-ff] [ 24.079709][ T1] pci 0000:00:00.0: [8086:29c0] type 00 class 0x060000 [ 24.213373][ T1] pci 0000:00:01.0: [1af4:1050] type 00 class 0x030000 [ 24.336178][ T1] pci 0000:00:01.0: reg 0x10: [mem 0xfe000000-0xfe7fffff pref] [ 24.496178][ T1] pci 0000:00:01.0: reg 0x18: [mem 0xfe800000-0xfe803fff 64bit pref] [ 24.656178][ T1] pci 0000:00:01.0: reg 0x20: [mem 0xfebf4000-0xfebf4fff] [ 24.796178][ T1] pci 0000:00:01.0: reg 0x30: [mem 0xfebe0000-0xfebeffff pref] [ 25.236178][ T1] pci 0000:00:02.0: [1af4:1000] type 00 class 0x020000 [ 25.341518][ T1] pci 0000:00:02.0: reg 0x10: [io 0xc680-0xc69f] [ 25.394980][ T1] pci 0000:00:02.0: reg 0x14: [mem 0xfebf5000-0xfebf5fff] [ 25.465418][ T1] pci 0000:00:02.0: reg 0x20: [mem 0xfe804000-0xfe807fff 64bit pref] [ 25.521907][ T1] pci 0000:00:02.0: reg 0x30: [mem 0xfeb40000-0xfeb7ffff pref] [ 25.701792][ T1] pci 0000:00:03.0: [8086:100e] type 00 class 0x020000 [ 25.786862][ T1] pci 0000:00:03.0: reg 0x10: [mem 0xfebc0000-0xfebdffff] [ 25.864447][ T1] pci 0000:00:03.0: reg 0x14: [io 0xc600-0xc63f] [ 25.978529][ T1] pci 0000:00:03.0: reg 0x30: [mem 0xfeb80000-0xfebbffff pref] [ 26.090522][ T1] pci 0000:00:04.0: [1274:5000] type 00 class 0x040100 [ 26.168858][ T1] pci 0000:00:04.0: reg 0x10: [io 0xc400-0xc4ff] [ 26.325929][ T1] pci 0000:00:05.0: [8086:2415] type 00 class 0x040100 [ 26.455483][ T1] pci 0000:00:05.0: reg 0x10: [io 0xc000-0xc3ff] [ 26.549011][ T1] pci 0000:00:05.0: reg 0x14: [io 0xc500-0xc5ff] [ 26.697008][ T1] pci 0000:00:06.0: [8086:2668] type 00 class 0x040300 [ 26.798223][ T1] pci 0000:00:06.0: reg 0x10: [mem 0xfebf0000-0xfebf3fff] [ 26.948873][ T1] pci 0000:00:07.0: [1af4:1009] type 00 class 0x000200 [ 27.026525][ T1] pci 0000:00:07.0: reg 0x10: [io 0xc6a0-0xc6bf] [ 27.092672][ T1] pci 0000:00:07.0: reg 0x14: [mem 0xfebf6000-0xfebf6fff] [ 27.172316][ T1] pci 0000:00:07.0: reg 0x20: [mem 0xfe808000-0xfe80bfff 64bit pref] [ 27.369792][ T1] pci 0000:00:1d.0: [8086:2934] type 00 class 0x0c0300 [ 27.442917][ T1] pci 0000:00:1d.0: reg 0x20: [io 0xc6c0-0xc6df] [ 27.506949][ T1] pci 0000:00:1d.1: [8086:2935] type 00 class 0x0c0300 [ 27.611409][ T1] pci 0000:00:1d.1: reg 0x20: [io 0xc6e0-0xc6ff] [ 27.688127][ T1] pci 0000:00:1d.2: [8086:2936] type 00 class 0x0c0300 [ 27.775844][ T1] pci 0000:00:1d.2: reg 0x20: [io 0xc700-0xc71f] [ 27.871357][ T1] pci 0000:00:1d.7: [8086:293a] type 00 class 0x0c0320 [ 27.934610][ T1] pci 0000:00:1d.7: reg 0x10: [mem 0xfebf7000-0xfebf7fff] [ 28.028267][ T1] pci 0000:00:1f.0: [8086:2918] type 00 class 0x060100 [ 28.156178][ T1] pci 0000:00:1f.0: quirk: [io 0x0600-0x067f] claimed by ICH6 ACPI/GPIO/TCO [ 28.236033][ T1] pci 0000:00:1f.0: quirk_ich7_lpc+0x0/0x190 took 87890 usecs [ 28.305183][ T1] pci 0000:00:1f.2: [8086:2922] type 00 class 0x010601 [ 28.377655][ T1] pci 0000:00:1f.2: reg 0x20: [io 0xc720-0xc73f] [ 28.433080][ T1] pci 0000:00:1f.2: reg 0x24: [mem 0xfebf8000-0xfebf8fff] [ 28.502428][ T1] pci 0000:00:1f.3: [8086:2930] type 00 class 0x0c0500 [ 28.601966][ T1] pci 0000:00:1f.3: reg 0x20: [io 0x0700-0x073f] [ 28.881760][ T1] ACPI: PCI Interrupt Link [LNKA] (IRQs 5 *10 11) [ 28.941936][ T1] ACPI: PCI Interrupt Link [LNKB] (IRQs 5 *10 11) [ 28.992867][ T1] ACPI: PCI Interrupt Link [LNKC] (IRQs 5 10 *11) [ 29.053206][ T1] ACPI: PCI Interrupt Link [LNKD] (IRQs 5 10 *11) [ 29.121317][ T1] ACPI: PCI Interrupt Link [LNKE] (IRQs 5 *10 11) [ 29.161374][ T1] ACPI: PCI Interrupt Link [LNKF] (IRQs 5 *10 11) [ 29.222818][ T1] ACPI: PCI Interrupt Link [LNKG] (IRQs 5 10 *11) [ 29.292738][ T1] ACPI: PCI Interrupt Link [LNKH] (IRQs 5 10 *11) [ 29.369713][ T1] ACPI: PCI Interrupt Link [GSIA] (IRQs *16) [ 29.426903][ T1] ACPI: PCI Interrupt Link [GSIB] (IRQs *17) [ 29.487011][ T1] ACPI: PCI Interrupt Link [GSIC] (IRQs *18) [ 29.526989][ T1] ACPI: PCI Interrupt Link [GSID] (IRQs *19) [ 29.577025][ T1] ACPI: PCI Interrupt Link [GSIE] (IRQs *20) [ 29.637443][ T1] ACPI: PCI Interrupt Link [GSIF] (IRQs *21) [ 29.697061][ T1] ACPI: PCI Interrupt Link [GSIG] (IRQs *22) [ 29.747861][ T1] ACPI: PCI Interrupt Link [GSIH] (IRQs *23) [ 29.998119][ T1] iommu: Default domain type: Translated [ 30.072229][ T1] pci 0000:00:01.0: vgaarb: setting as boot VGA device [ 30.076178][ T1] pci 0000:00:01.0: vgaarb: VGA device added: decodes=io+mem,owns=io+mem,locks=none [ 30.196813][ T1] pci 0000:00:01.0: vgaarb: bridge control possible [ 30.236694][ T1] vgaarb: loaded [ 30.336178][ T1437] kworker/u17:4 (1437) used greatest stack depth: 27424 bytes left [ 30.409421][ T1] SCSI subsystem initialized [ 30.498046][ T1] ACPI: bus type USB registered [ 30.542855][ T1] usbcore: registered new interface driver usbfs [ 30.606180][ T1] usbcore: registered new interface driver hub [ 30.660206][ T1] usbcore: registered new device driver usb [ 30.719722][ T1] mc: Linux media interface: v0.10 [ 30.747467][ T1] videodev: Linux video capture interface: v2.00 [ 30.797486][ T1] pps_core: LinuxPPS API ver. 1 registered [ 30.836620][ T1] pps_core: Software ver. 5.3.6 - Copyright 2005-2007 Rodolfo Giometti [ 30.928401][ T1] PTP clock support registered [ 30.981919][ T1] EDAC MC: Ver: 3.0.0 [ 31.100720][ T1] Advanced Linux Sound Architecture Driver Initialized. [ 31.189837][ T1] Bluetooth: Core ver 2.22 [ 31.242317][ T1] NET: Registered protocol family 31 [ 31.286576][ T1] Bluetooth: HCI device and connection manager initialized [ 31.331290][ T1] Bluetooth: HCI socket layer initialized [ 31.366179][ T1] Bluetooth: L2CAP socket layer initialized [ 31.407610][ T1] Bluetooth: SCO socket layer initialized [ 31.468685][ T1] NET: Registered protocol family 8 [ 31.516607][ T1] NET: Registered protocol family 20 [ 31.571429][ T1] NetLabel: Initializing [ 31.586392][ T1] NetLabel: domain hash size = 128 [ 31.626587][ T1] NetLabel: protocols = UNLABELED CIPSOv4 CALIPSO [ 31.686818][ T1] NetLabel: unlabeled traffic allowed by default [ 31.735416][ T1] nfc: nfc_init: NFC Core ver 0.1 [ 31.737947][ T1] NET: Registered protocol family 39 [ 31.748944][ T1] PCI: Using ACPI for IRQ routing [ 35.016178][ T1] hpet0: at MMIO 0xfed00000, IRQs 2, 8, 0 [ 35.047081][ T1] hpet0: 3 comparators, 64-bit 100.000000 MHz counter [ 35.081279][ T1] clocksource: Switched to clocksource kvm-clock [ 38.951802][ T1] VFS: Disk quotas dquot_6.6.0 [ 38.999587][ T1] VFS: Dquot-cache hash table entries: 512 (order 0, 4096 bytes) [ 39.094322][ T1] FS-Cache: Loaded [ 39.162261][ T1] CacheFiles: Loaded [ 39.204317][ T1] TOMOYO: 2.6.0 [ 39.226989][ T1] Mandatory Access Control activated. [ 39.270533][ T1] pnp: PnP ACPI init [ 39.361353][ T1] pnp: PnP ACPI: found 6 devices [ 39.517585][ T1] clocksource: acpi_pm: mask: 0xffffff max_cycles: 0xffffff, max_idle_ns: 2085701024 ns [ 39.572809][ T1] NET: Registered protocol family 2 [ 39.624921][ T1] tcp_listen_portaddr_hash hash table entries: 1024 (order: 4, 81920 bytes, vmalloc) [ 39.674118][ T1] TCP established hash table entries: 16384 (order: 5, 131072 bytes, vmalloc) [ 39.718624][ T1] TCP bind hash table entries: 16384 (order: 8, 1179648 bytes, vmalloc) [ 39.761944][ T1] TCP: Hash tables configured (established 16384 bind 16384) [ 39.814235][ T1] MPTCP token hash table entries: 2048 (order: 5, 180224 bytes, vmalloc) [ 39.851301][ T1] UDP hash table entries: 1024 (order: 5, 163840 bytes, vmalloc) [ 39.882639][ T1] UDP-Lite hash table entries: 1024 (order: 5, 163840 bytes, vmalloc) [ 39.924785][ T1] NET: Registered protocol family 1 [ 39.965601][ T1] RPC: Registered named UNIX socket transport module. [ 39.991966][ T1] RPC: Registered udp transport module. [ 40.010764][ T1] RPC: Registered tcp transport module. [ 40.025498][ T1] RPC: Registered tcp NFSv4.1 backchannel transport module. [ 40.046980][ T1] NET: Registered protocol family 44 [ 40.073017][ T1] pci_bus 0000:00: resource 4 [io 0x0000-0x0cf7 window] [ 40.193397][ T1] pci_bus 0000:00: resource 5 [io 0x0d00-0xffff window] [ 40.241272][ T1] pci_bus 0000:00: resource 6 [mem 0x000a0000-0x000bffff window] [ 40.279439][ T1] pci_bus 0000:00: resource 7 [mem 0x80000000-0xafffffff window] [ 40.313490][ T1] pci_bus 0000:00: resource 8 [mem 0xc0000000-0xfebfffff window] [ 40.362487][ T1] pci_bus 0000:00: resource 9 [mem 0x580000000-0xd7fffffff window] [ 40.430366][ T1] pci 0000:00:01.0: Video device with shadowed ROM at [mem 0x000c0000-0x000dffff] [ 40.484980][ T1] pci 0000:00:01.0: pci_fixup_video+0x0/0x270 took 57187 usecs [ 40.620244][ T1] PCI Interrupt Link [GSIA] enabled at IRQ 16 [ 40.766487][ T1] pci 0000:00:1d.0: quirk_usb_early_handoff+0x0/0x105b took 235612 usecs [ 40.815710][ T1] PCI Interrupt Link [GSIB] enabled at IRQ 17 [ 40.881494][ T1] pci 0000:00:1d.1: quirk_usb_early_handoff+0x0/0x105b took 79254 usecs [ 40.961298][ T1] PCI Interrupt Link [GSIC] enabled at IRQ 18 [ 41.015752][ T1] pci 0000:00:1d.2: quirk_usb_early_handoff+0x0/0x105b took 68221 usecs [ 41.203645][ T1] PCI Interrupt Link [GSID] enabled at IRQ 19 [ 41.384521][ T1] pci 0000:00:1d.7: quirk_usb_early_handoff+0x0/0x105b took 240346 usecs [ 41.436809][ T1] PCI: CLS 0 bytes, default 64 [ 41.659450][ T1] PCI-DMA: Using software bounce buffering for IO (SWIOTLB) [ 41.701208][ T1] software IO TLB: mapped [mem 0x7ac00000-0x7ec00000] (64MB) [ 41.894596][ T1] kvm: no hardware support [ 41.925899][ T1] has_svm: not amd or hygon [ 41.948978][ T1] kvm: no hardware support [ 41.980323][ T1] clocksource: tsc: mask: 0xffffffffffffffff max_cycles: 0x1cd4c92266a, max_idle_ns: 440795223404 ns [ 42.073830][ T1] clocksource: Switched to clocksource tsc [ 42.133644][ T1] mce: Machine check injector initialized [ 42.220148][ T1] check: Scanning for low memory corruption every 60 seconds [ 42.937203][ T1] Initialise system trusted keyrings [ 43.035279][ T1] workingset: timestamp_bits=40 max_order=19 bucket_order=0 [ 43.123305][ T1] zbud: loaded [ 43.216112][ T1] DLM installed [ 43.258792][ T1] squashfs: version 4.0 (2009/01/31) Phillip Lougher [ 43.299810][ T1] FS-Cache: Netfs 'nfs' registered for caching [ 43.357780][ T1] NFS: Registering the id_resolver key type [ 43.390143][ T1] Key type id_resolver registered [ 43.410058][ T1] Key type id_legacy registered [ 43.430151][ T1] nfs4filelayout_init: NFSv4 File Layout Driver Registering... [ 43.470750][ T1] Installing knfsd (copyright (C) 1996 okir@monad.swb.de). [ 43.525691][ T1] FS-Cache: Netfs 'cifs' registered for caching [ 43.556635][ T1] Key type cifs.spnego registered [ 43.577096][ T1] Key type cifs.idmap registered [ 43.598459][ T1] ntfs: driver 2.1.32 [Flags: R/W]. [ 43.619719][ T1] fuse: init (API version 7.31) [ 43.651303][ T1] JFS: nTxBlock = 8192, nTxLock = 65536 [ 43.706624][ T1] SGI XFS with ACLs, security attributes, realtime, quota, no debug enabled [ 43.768709][ T1] 9p: Installing v9fs 9p2000 file system support [ 43.793395][ T1] FS-Cache: Netfs '9p' registered for caching [ 43.816536][ T1] ocfs2: Registered cluster interface o2cb [ 43.860248][ T1] ocfs2: Registered cluster interface user [ 43.917853][ T1] OCFS2 User DLM kernel interface loaded [ 44.002924][ T1] gfs2: GFS2 installed [ 44.051938][ T1] FS-Cache: Netfs 'ceph' registered for caching [ 44.087842][ T1] ceph: loaded (mds proto 32) [ 44.209847][ T1] NET: Registered protocol family 38 [ 44.242149][ T1] async_tx: api initialized (async) [ 44.275855][ T1] Key type asymmetric registered [ 44.315171][ T1] Asymmetric key parser 'x509' registered [ 44.357977][ T1] Asymmetric key parser 'pkcs8' registered [ 44.412114][ T1] Key type pkcs7_test registered [ 44.454288][ T1] Asymmetric key parser 'tpm_parser' registered [ 44.505424][ T1] Block layer SCSI generic (bsg) driver version 0.4 loaded (major 243) [ 44.604821][ T1] io scheduler mq-deadline registered [ 44.655990][ T1] io scheduler kyber registered [ 44.705752][ T1] io scheduler bfq registered [ 44.852364][ T1] hgafb: HGA card not detected. [ 44.897326][ T1] hgafb: probe of hgafb.0 failed with error -22 [ 44.963039][ T1] usbcore: registered new interface driver udlfb [ 45.093734][ T1] uvesafb: failed to execute /sbin/v86d [ 45.148578][ T1] uvesafb: make sure that the v86d helper is installed and executable [ 45.232067][ T1] uvesafb: Getting VBE info block failed (eax=0x4f00, err=-2) [ 45.303636][ T1] uvesafb: vbe_init() failed with -22 [ 45.351023][ T1] uvesafb: probe of uvesafb.0 failed with error -22 [ 45.426718][ T1] vga16fb: mapped to 0x00000000259e6eeb [ 90.791265][ T1] Console: switching to colour frame buffer device 80x30 [ 122.838865][ T1] fb0: VGA16 VGA frame buffer device [ 123.017754][ T1] input: Power Button as /devices/LNXSYSTM:00/LNXPWRBN:00/input/input0 [ 123.094241][ T1] ACPI: Power Button [PWRF] [ 123.540730][ T7] ================================================================== [ 123.547212][ T7] BUG: KASAN: global-out-of-bounds in internal_create_group+0x9d8/0xb20 [ 123.547212][ T7] Read of size 8 at addr ffffffff8a2e70f0 by task kworker/u17:0/7 [ 123.627205][ T7] [ 123.627205][ T7] CPU: 3 PID: 7 Comm: kworker/u17:0 Not tainted 5.8.0-syzkaller #0 [ 123.627205][ T7] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS rel-1.12.0-59-gc9ba5276e321-prebuilt.qemu.org 04/01/2014 [ 123.627205][ T7] Workqueue: events_unbound async_run_entry_fn [ 123.627205][ T7] Call Trace: [ 123.627205][ T7] dump_stack+0x18f/0x20d [ 123.627205][ T7] ? internal_create_group+0x9d8/0xb20 [ 123.627205][ T7] ? internal_create_group+0x9d8/0xb20 [ 123.627205][ T7] print_address_description.constprop.0.cold+0x5/0x497 [ 123.627205][ T7] ? vprintk_func+0x97/0x1a6 [ 123.627205][ T7] ? internal_create_group+0x9d8/0xb20 [ 123.627205][ T7] ? internal_create_group+0x9d8/0xb20 [ 123.627205][ T7] kasan_report.cold+0x1f/0x37 [ 123.627205][ T7] ? internal_create_group+0x9d8/0xb20 [ 123.627205][ T7] ? state_show+0xf0/0xf0 [ 123.627205][ T7] internal_create_group+0x9d8/0xb20 [ 123.627205][ T7] ? sysfs_remove_group+0x170/0x170 [ 123.627205][ T7] internal_create_groups.part.0+0x90/0x140 [ 123.627205][ T7] sysfs_create_groups+0x25/0x50 [ 123.627205][ T7] device_add+0x7fd/0x1c40 [ 123.627205][ T7] ? devlink_add_symlinks+0x450/0x450 [ 123.627205][ T7] ? lock_release+0x8e0/0x8e0 [ 123.627205][ T7] ? lock_downgrade+0x830/0x830 [ 123.627205][ T7] ? __schedule+0x88e/0x21e0 [ 123.627205][ T7] ? nd_synchronize+0x20/0x20 [ 123.627205][ T7] nd_async_device_register+0x12/0x80 [ 123.627205][ T7] async_run_entry_fn+0x121/0x530 [ 123.627205][ T7] process_one_work+0x94c/0x1670 [ 123.627205][ T7] ? lock_release+0x8e0/0x8e0 [ 123.627205][ T7] ? pwq_dec_nr_in_flight+0x2d0/0x2d0 [ 124.146771][ T7] ? rwlock_bug.part.0+0x90/0x90 [ 124.146771][ T7] worker_thread+0x64c/0x1120 [ 124.146771][ T7] ? process_one_work+0x1670/0x1670 [ 124.146771][ T7] kthread+0x3b5/0x4a0 [ 124.146771][ T7] ? __kthread_bind_mask+0xc0/0xc0 [ 124.146771][ T7] ? __kthread_bind_mask+0xc0/0xc0 [ 124.146771][ T7] ret_from_fork+0x1f/0x30 [ 124.146771][ T7] [ 124.146771][ T7] The buggy address belongs to the variable: [ 124.146771][ T7] nvdimm_firmware_attributes+0x10/0x40 [ 124.146771][ T7] [ 124.146771][ T7] Memory state around the buggy address: [ 124.146771][ T7] ffffffff8a2e6f80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 124.146771][ T7] ffffffff8a2e7000: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 124.146771][ T7] >ffffffff8a2e7080: 00 00 00 00 00 00 00 00 f9 f9 f9 f9 00 00 f9 f9 [ 124.146771][ T7] ^ [ 124.146771][ T7] ffffffff8a2e7100: f9 f9 f9 f9 00 00 00 00 00 00 00 f9 f9 f9 f9 f9 [ 124.146771][ T7] ffffffff8a2e7180: 00 00 00 00 00 00 00 f9 f9 f9 f9 f9 00 00 00 00 [ 124.146771][ T7] ================================================================== [ 124.146771][ T7] Disabling lock debugging due to kernel taint [ 124.504281][ T7] Kernel panic - not syncing: panic_on_warn set ... [ 124.507705][ T7] CPU: 3 PID: 7 Comm: kworker/u17:0 Tainted: G B 5.8.0-syzkaller #0 [ 124.507705][ T7] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS rel-1.12.0-59-gc9ba5276e321-prebuilt.qemu.org 04/01/2014 [ 124.507705][ T7] Workqueue: events_unbound async_run_entry_fn [ 124.507705][ T7] Call Trace: [ 124.507705][ T7] dump_stack+0x18f/0x20d [ 124.507705][ T7] ? internal_create_group+0x960/0xb20 [ 124.507705][ T7] panic+0x2e3/0x75c [ 124.507705][ T7] ? __warn_printk+0xf3/0xf3 [ 124.507705][ T7] ? preempt_schedule_common+0x59/0xc0 [ 124.507705][ T7] ? internal_create_group+0x9d8/0xb20 [ 124.507705][ T7] ? preempt_schedule_thunk+0x16/0x18 [ 124.507705][ T7] ? trace_hardirqs_on+0x55/0x220 [ 124.507705][ T7] ? internal_create_group+0x9d8/0xb20 [ 124.507705][ T7] ? internal_create_group+0x9d8/0xb20 [ 124.507705][ T7] end_report+0x4d/0x53 [ 124.507705][ T7] kasan_report.cold+0xd/0x37 [ 124.507705][ T7] ? internal_create_group+0x9d8/0xb20 [ 124.507705][ T7] ? state_show+0xf0/0xf0 [ 124.507705][ T7] internal_create_group+0x9d8/0xb20 [ 124.507705][ T7] ? sysfs_remove_group+0x170/0x170 [ 124.507705][ T7] internal_create_groups.part.0+0x90/0x140 [ 124.507705][ T7] sysfs_create_groups+0x25/0x50 [ 124.507705][ T7] device_add+0x7fd/0x1c40 [ 124.507705][ T7] ? devlink_add_symlinks+0x450/0x450 [ 124.507705][ T7] ? lock_release+0x8e0/0x8e0 [ 124.507705][ T7] ? lock_downgrade+0x830/0x830 [ 124.507705][ T7] ? __schedule+0x88e/0x21e0 [ 124.507705][ T7] ? nd_synchronize+0x20/0x20 [ 124.507705][ T7] nd_async_device_register+0x12/0x80 [ 124.507705][ T7] async_run_entry_fn+0x121/0x530 [ 124.507705][ T7] process_one_work+0x94c/0x1670 [ 124.507705][ T7] ? lock_release+0x8e0/0x8e0 [ 124.507705][ T7] ? pwq_dec_nr_in_flight+0x2d0/0x2d0 [ 124.507705][ T7] ? rwlock_bug.part.0+0x90/0x90 [ 124.507705][ T7] worker_thread+0x64c/0x1120 [ 124.507705][ T7] ? process_one_work+0x1670/0x1670 [ 124.507705][ T7] kthread+0x3b5/0x4a0 [ 124.507705][ T7] ? __kthread_bind_mask+0xc0/0xc0 [ 124.507705][ T7] ? __kthread_bind_mask+0xc0/0xc0 [ 124.507705][ T7] ret_from_fork+0x1f/0x30 [ 124.507705][ T7] Kernel Offset: disabled [ 124.507705][ T7] Rebooting in 86400 seconds..