[ 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 [ 0.000167][ T0] kvm-clock: cpu 0, msr becf001, primary cpu clock [ 0.000167][ T0] kvm-clock: using sched offset of 36847277230 cycles [ 0.054832][ T0] clocksource: kvm-clock: mask: 0xffffffffffffffff max_cycles: 0x1cd42e4dffb, max_idle_ns: 881590591483 ns [ 0.234246][ T0] tsc: Detected 2000.164 MHz processor [ 0.336560][ T0] last_pfn = 0x7ffdd max_arch_pfn = 0x400000000 [ 0.406369][ T0] x86/PAT: Configuration [0-7]: WB WC UC- UC WB WP UC- WT [ 0.488366][ T0] found SMP MP-table at [mem 0x000f5a40-0x000f5a4f] [ 0.565120][ T0] check: Scanning 1 areas for low memory corruption [ 0.655773][ T0] ACPI: Early table checksum verification disabled [ 0.726183][ T0] ACPI: RSDP 0x00000000000F5870 000014 (v00 BOCHS ) [ 0.785226][ T0] ACPI: RSDT 0x000000007FFE1F9D 000040 (v01 BOCHS BXPCRSDT 00000001 BXPC 00000001) [ 0.869411][ T0] ACPI: FACP 0x000000007FFE1860 0000F4 (v03 BOCHS BXPCFACP 00000001 BXPC 00000001) [ 0.940087][ T0] ACPI: DSDT 0x000000007FFDF040 002820 (v01 BOCHS BXPCDSDT 00000001 BXPC 00000001) [ 1.026115][ T0] ACPI: FACS 0x000000007FFDF000 000040 [ 1.068564][ T0] ACPI: APIC 0x000000007FFE1954 0000B0 (v01 BOCHS BXPCAPIC 00000001 BXPC 00000001) [ 1.158855][ T0] ACPI: HPET 0x000000007FFE1A04 000038 (v01 BOCHS BXPCHPET 00000001 BXPC 00000001) [ 1.246310][ T0] ACPI: SRAT 0x000000007FFE1A3C 000178 (v01 BOCHS BXPCSRAT 00000001 BXPC 00000001) [ 1.322782][ T0] ACPI: MCFG 0x000000007FFE1BB4 00003C (v01 BOCHS BXPCMCFG 00000001 BXPC 00000001) [ 1.413816][ T0] ACPI: SSDT 0x000000007FFE1BF0 0002CD (v01 BOCHS NVDIMM 00000001 BXPC 00000001) [ 1.526780][ T0] ACPI: NFIT 0x000000007FFE1EBD 0000E0 (v01 BOCHS BXPCNFIT 00000001 BXPC 00000001) [ 1.632575][ T0] SRAT: PXM 0 -> APIC 0x00 -> Node 0 [ 1.683851][ T0] SRAT: PXM 0 -> APIC 0x01 -> Node 0 [ 1.747764][ T0] SRAT: PXM 0 -> APIC 0x02 -> Node 0 [ 1.807451][ T0] SRAT: PXM 0 -> APIC 0x03 -> Node 0 [ 1.862218][ T0] SRAT: PXM 1 -> APIC 0x04 -> Node 1 [ 1.911152][ T0] SRAT: PXM 1 -> APIC 0x05 -> Node 1 [ 1.968934][ T0] SRAT: PXM 1 -> APIC 0x06 -> Node 1 [ 2.024312][ T0] SRAT: PXM 1 -> APIC 0x07 -> Node 1 [ 2.076321][ T0] ACPI: SRAT: Node 0 PXM 0 [mem 0x00000000-0x0009ffff] [ 2.147976][ T0] ACPI: SRAT: Node 0 PXM 0 [mem 0x00100000-0x3fffffff] [ 2.218906][ T0] ACPI: SRAT: Node 1 PXM 1 [mem 0x40000000-0x7fffffff] [ 2.297033][ T0] ACPI: SRAT: Node 1 PXM 1 [mem 0x100000000-0x57fffffff] hotplug [ 2.386882][ T0] NUMA: Node 0 [mem 0x00000000-0x0009ffff] + [mem 0x00100000-0x3fffffff] -> [mem 0x00000000-0x3fffffff] [ 2.497096][ T0] Faking node 0 at [mem 0x0000000000000000-0x000000003fffffff] (1024MB) [ 2.569800][ T0] Faking node 1 at [mem 0x0000000040000000-0x000000007ffdcfff] (1023MB) [ 2.661292][ T0] NODE_DATA(0) allocated [mem 0x3fffb000-0x3fffffff] [ 2.729682][ T0] NODE_DATA(1) allocated [mem 0x7ffd7000-0x7ffdbfff] [ 3.188895][ T0] Zone ranges: [ 3.221545][ T0] DMA [mem 0x0000000000001000-0x0000000000ffffff] [ 3.273300][ T0] DMA32 [mem 0x0000000001000000-0x000000007ffdcfff] [ 3.383069][ T0] Normal empty [ 3.427102][ T0] Device empty [ 3.460204][ T0] Movable zone start for each node [ 3.498432][ T0] Early memory node ranges [ 3.528099][ T0] node 0: [mem 0x0000000000001000-0x000000000009efff] [ 3.595144][ T0] node 0: [mem 0x0000000000100000-0x000000003fffffff] [ 3.662512][ T0] node 1: [mem 0x0000000040000000-0x000000007ffdcfff] [ 3.729598][ T0] Zeroed struct page in unavailable ranges: 133 pages [ 3.730864][ T0] Initmem setup node 0 [mem 0x0000000000001000-0x000000003fffffff] [ 3.902673][ T0] Initmem setup node 1 [mem 0x0000000040000000-0x000000007ffdcfff] [ 10.237991][ T0] kasan: KernelAddressSanitizer initialized [ 10.389422][ T0] ACPI: PM-Timer IO Port: 0x608 [ 10.431888][ T0] ACPI: LAPIC_NMI (acpi_id[0xff] dfl dfl lint[0x1]) [ 10.511334][ T0] IOAPIC[0]: apic_id 0, version 17, address 0xfec00000, GSI 0-23 [ 10.572978][ T0] ACPI: INT_SRC_OVR (bus 0 bus_irq 0 global_irq 2 dfl dfl) [ 10.647845][ T0] ACPI: INT_SRC_OVR (bus 0 bus_irq 5 global_irq 5 high level) [ 10.707425][ T0] ACPI: INT_SRC_OVR (bus 0 bus_irq 9 global_irq 9 high level) [ 10.775416][ T0] ACPI: INT_SRC_OVR (bus 0 bus_irq 10 global_irq 10 high level) [ 10.831433][ T0] ACPI: INT_SRC_OVR (bus 0 bus_irq 11 global_irq 11 high level) [ 10.910060][ T0] Using ACPI (MADT) for SMP configuration information [ 10.969430][ T0] ACPI: HPET id: 0x8086a201 base: 0xfed00000 [ 11.043306][ T0] TSC deadline timer available [ 11.082977][ T0] smpboot: Allowing 8 CPUs, 4 hotplug CPUs [ 11.139623][ T0] kvm-guest: KVM setup pv remote TLB flush [ 11.211492][ T0] PM: hibernation: Registered nosave memory: [mem 0x00000000-0x00000fff] [ 11.286047][ T0] PM: hibernation: Registered nosave memory: [mem 0x0009f000-0x0009ffff] [ 11.364546][ T0] PM: hibernation: Registered nosave memory: [mem 0x000a0000-0x000effff] [ 11.442223][ T0] PM: hibernation: Registered nosave memory: [mem 0x000f0000-0x000fffff] [ 11.518097][ T0] [mem 0xc0000000-0xfed1bfff] available for PCI devices [ 11.575720][ T0] Booting paravirtualized kernel on KVM [ 11.629440][ T0] clocksource: refined-jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604462750000 ns [ 11.822848][ T0] setup_percpu: NR_CPUS:64 nr_cpumask_bits:64 nr_cpu_ids:8 nr_node_ids:2 [ 12.069285][ T0] percpu: Embedded 65 pages/cpu s226696 r8192 d31352 u1048576 [ 12.166108][ T0] kvm-guest: stealtime: cpu 0, msr 2ce20a40 [ 12.233313][ T0] kvm-guest: PV spinlocks enabled [ 12.293137][ T0] PV qspinlock hash table entries: 256 (order: 0, 4096 bytes, linear) [ 12.400881][ T0] Built 2 zonelists, mobility grouping on. Total pages: 515942 [ 12.464296][ T0] Policy zone: DMA32 [ 12.497203][ 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 [ 13.173174][ T0] mem auto-init: stack:off, heap alloc:on, heap free:off [ 14.872534][ T0] Memory: 1503356K/2096620K available (116743K kernel code, 17674K rwdata, 21636K rodata, 2792K init, 23936K bss, 593008K reserved, 0K cma-reserved) [ 15.225647][ T0] Running RCU self tests [ 15.263788][ T0] rcu: Preemptible hierarchical RCU implementation. [ 15.325722][ T0] rcu: RCU lockdep checking is enabled. [ 15.378864][ T0] rcu: RCU restricting CPUs from NR_CPUS=64 to nr_cpu_ids=8. [ 15.461828][ T0] rcu: RCU callback double-/use-after-free debug enabled. [ 15.542105][ T0] rcu: RCU debug extended QS entry/exit. [ 15.610057][ T0] All grace periods are expedited (rcu_expedited). [ 15.679406][ T0] Trampoline variant of Tasks RCU enabled. [ 15.740921][ T0] rcu: RCU calculated value of scheduler-enlistment delay is 10 jiffies. [ 15.811848][ T0] rcu: Adjusting geometry for rcu_fanout_leaf=16, nr_cpu_ids=8 [ 15.933625][ T0] NR_IRQS: 4352, nr_irqs: 488, preallocated irqs: 16 [ 16.130686][ T0] random: get_random_bytes called from start_kernel+0x23b/0x46a with crng_init=0 [ 17.060354][ T0] Console: colour VGA+ 80x25 [ 17.242604][ T0] printk: console [ttyS0] enabled [ 17.242604][ T0] printk: console [ttyS0] enabled [ 17.358587][ T0] printk: bootconsole [earlyser0] disabled [ 17.358587][ T0] printk: bootconsole [earlyser0] disabled [ 17.512020][ T0] Lock dependency validator: Copyright (c) 2006 Red Hat, Inc., Ingo Molnar [ 17.626508][ T0] ... MAX_LOCKDEP_SUBCLASSES: 8 [ 17.694080][ T0] ... MAX_LOCK_DEPTH: 48 [ 17.756122][ T0] ... MAX_LOCKDEP_KEYS: 8192 [ 17.822523][ T0] ... CLASSHASH_SIZE: 4096 [ 17.894413][ T0] ... MAX_LOCKDEP_ENTRIES: 32768 [ 17.970317][ T0] ... MAX_LOCKDEP_CHAINS: 65536 [ 18.040027][ T0] ... CHAINHASH_SIZE: 32768 [ 18.113503][ T0] memory used by lock dependency info: 6301 kB [ 18.198768][ T0] memory used for stack traces: 4224 kB [ 18.272678][ T0] per task-struct memory footprint: 1920 bytes [ 18.381389][ T0] mempolicy: Enabling automatic NUMA balancing. Configure with numa_balancing= or the kernel.numa_balancing sysctl [ 18.563866][ T0] ACPI: Core revision 20200717 [ 18.730321][ T0] clocksource: hpet: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604467 ns [ 18.973721][ T0] APIC: Switch to symmetric I/O mode setup [ 19.154389][ T0] x2apic enabled [ 19.268578][ T0] Switched APIC routing to physical x2apic. [ 19.358292][ T0] kvm-guest: setup PV IPIs [ 19.710797][ T0] ..TIMER: vector=0x30 apic1=0 pin1=2 apic2=-1 pin2=-1 [ 19.810133][ T0] clocksource: tsc-early: mask: 0xffffffffffffffff max_cycles: 0x1cd4c92266a, max_idle_ns: 440795223404 ns [ 19.981405][ T0] Calibrating delay loop (skipped) preset value.. 4000.32 BogoMIPS (lpj=20001640) [ 19.995698][ T0] pid_max: default: 32768 minimum: 301 [ 20.041581][ T0] LSM: Security Framework initializing [ 20.052843][ T0] LSM: security= is ignored because it is superseded by lsm= [ 20.072291][ T0] Yama: becoming mindful. [ 20.126503][ T0] SELinux: Initializing. [ 20.154035][ T0] TOMOYO Linux initialized [ 20.177964][ T0] LSM support for eBPF active [ 20.285886][ T0] Dentry cache hash table entries: 262144 (order: 9, 2097152 bytes, vmalloc) [ 20.345542][ T0] Inode-cache hash table entries: 131072 (order: 8, 1048576 bytes, vmalloc) [ 20.356823][ T0] Mount-cache hash table entries: 4096 (order: 3, 32768 bytes, vmalloc) [ 20.373497][ T0] Mountpoint-cache hash table entries: 4096 (order: 3, 32768 bytes, vmalloc) [ 20.996501][ T0] x86/cpu: User Mode Instruction Prevention (UMIP) activated [ 21.089941][ T0] Last level iTLB entries: 4KB 0, 2MB 0, 4MB 0 [ 21.091598][ T0] Last level dTLB entries: 4KB 0, 2MB 0, 4MB 0, 1GB 0 [ 21.114027][ T0] Spectre V1 : Mitigation: usercopy/swapgs barriers and __user pointer sanitization [ 21.123404][ T0] Spectre V2 : Spectre mitigation: kernel not compiled with retpoline; no mitigation available! [ 21.125770][ T0] Speculative Store Bypass: Mitigation: Speculative Store Bypass disabled via prctl [ 21.155352][ T0] TAA: Mitigation: Clear CPU buffers [ 21.171596][ T0] MDS: Mitigation: Clear CPU buffers [ 21.794049][ T0] Freeing SMP alternatives memory: 104K [ 22.327526][ C0] random: fast init done [ 22.991571][ T1] smpboot: CPU0: Intel(R) Xeon(R) CPU @ 2.00GHz (family: 0x6, model: 0x55, stepping: 0x3) [ 23.129397][ T1] Performance Events: unsupported p6 CPU model 85 no PMU driver, software events only. [ 23.163308][ T1] rcu: Hierarchical SRCU implementation. [ 23.221571][ T1] dyndbg: Ignore empty _ddebug table in a CONFIG_DYNAMIC_DEBUG_CORE build [ 23.263698][ T1] NMI watchdog: Perf NMI watchdog permanently disabled [ 23.336659][ T1] smp: Bringing up secondary CPUs ... [ 23.401571][ T1] x86: Booting SMP configuration: [ 23.413190][ T1] .... node #0, CPUs: #1 [ 3.665654][ T0] kvm-clock: cpu 1, msr becf041, secondary cpu clock [ 23.679673][ T15] kvm-guest: stealtime: cpu 1, msr 2cf20a40 [ 23.777316][ 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. [ 23.786241][ 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. [ 23.829860][ T1] #2 [ 3.665654][ T0] kvm-clock: cpu 2, msr becf081, secondary cpu clock [ 24.055362][ T20] kvm-guest: stealtime: cpu 2, msr 2d020a40 [ 24.182411][ T1] #3 [ 3.665654][ T0] kvm-clock: cpu 3, msr becf0c1, secondary cpu clock [ 24.428165][ T25] kvm-guest: stealtime: cpu 3, msr 2d120a40 [ 24.514139][ T1] smp: Brought up 2 nodes, 4 CPUs [ 24.522349][ T1] smpboot: Max logical packages: 2 [ 24.532019][ T1] smpboot: Total of 4 processors activated (16001.31 BogoMIPS) [ 24.761934][ T1] devtmpfs: initialized [ 24.879996][ T1] x86/mm: Memory block size: 128MB [ 25.324057][ T1] clocksource: jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604462750000 ns [ 25.488987][ T34] kworker/u17:0 (34) used greatest stack depth: 27656 bytes left [ 25.498152][ T1] futex hash table entries: 2048 (order: 6, 262144 bytes, vmalloc) [ 25.754780][ T1] xor: automatically using best checksumming function avx [ 25.904953][ T1] PM: RTC time: 23:07:16, date: 2020-08-18 [ 26.073108][ T1] NET: Registered protocol family 16 [ 26.206196][ T1] audit: initializing netlink subsys (disabled) [ 26.328780][ T41] audit: type=2000 audit(1597792030.473:1): state=initialized audit_enabled=0 res=1 [ 26.423828][ T1] thermal_sys: Registered thermal governor 'step_wise' [ 26.423835][ T1] thermal_sys: Registered thermal governor 'user_space' [ 26.449126][ T1] cpuidle: using governor menu [ 26.473012][ T1] NET: Registered protocol family 42 [ 26.545790][ T1] ACPI: bus type PCI registered [ 26.591298][ T1] dca service started, version 1.12.1 [ 26.611571][ T1] PCI: MMCONFIG for domain 0000 [bus 00-ff] at [mem 0xb0000000-0xbfffffff] (base 0xb0000000) [ 26.625242][ T1] PCI: MMCONFIG at [mem 0xb0000000-0xbfffffff] reserved in E820 [ 27.847252][ T1] PCI: Using configuration type 1 for base access [ 27.990613][ T113] kworker/u17:2 (113) used greatest stack depth: 27568 bytes left [ 28.195112][ T255] kworker/u17:1 (255) used greatest stack depth: 27544 bytes left [ 29.459425][ T1] HugeTLB registered 2.00 MiB page size, pre-allocated 0 pages [ 30.701571][ T1] cryptd: max_cpu_qlen set to 1000 [ 31.471571][ T1] raid6: avx512x4 gen() 9603 MB/s [ 31.712164][ T1] raid6: avx512x4 xor() 4355 MB/s [ 31.940568][ T1] raid6: avx512x2 gen() 8903 MB/s [ 32.172930][ T1] raid6: avx512x2 xor() 4623 MB/s [ 32.351846][ T1] raid6: avx512x1 gen() 6033 MB/s [ 32.532163][ T1] raid6: avx512x1 xor() 2462 MB/s [ 32.711926][ T1] raid6: avx2x4 gen() 7406 MB/s [ 32.901571][ T1] raid6: avx2x4 xor() 3146 MB/s [ 33.169994][ T1] raid6: avx2x2 gen() 4122 MB/s [ 33.427841][ T1] raid6: avx2x2 xor() 2183 MB/s [ 33.664317][ T1] raid6: avx2x1 gen() 3247 MB/s [ 33.908217][ T1] raid6: avx2x1 xor() 1275 MB/s [ 34.147244][ T1] raid6: sse2x4 gen() 4217 MB/s [ 34.398254][ T1] raid6: sse2x4 xor() 2084 MB/s [ 34.645365][ T1] raid6: sse2x2 gen() 2389 MB/s [ 34.891353][ T1] raid6: sse2x2 xor() 1168 MB/s [ 35.147888][ T1] raid6: sse2x1 gen() 1714 MB/s [ 35.398189][ T1] raid6: sse2x1 xor() 625 MB/s [ 35.482311][ T1] raid6: using algorithm avx512x4 gen() 9603 MB/s [ 35.572218][ T1] raid6: .... xor() 4355 MB/s, rmw enabled [ 35.664316][ T1] raid6: using avx512x2 recovery algorithm [ 35.891571][ T1] ACPI: Added _OSI(Module Device) [ 35.972422][ T1] ACPI: Added _OSI(Processor Device) [ 36.062741][ T1] ACPI: Added _OSI(3.0 _SCP Extensions) [ 36.162366][ T1] ACPI: Added _OSI(Processor Aggregator Device) [ 36.264031][ T1] ACPI: Added _OSI(Linux-Dell-Video) [ 36.343854][ T1] ACPI: Added _OSI(Linux-Lenovo-NV-HDMI-Audio) [ 36.432285][ T1] ACPI: Added _OSI(Linux-HPI-Hybrid-Graphics) [ 36.835759][ T1] ACPI: 2 ACPI AML tables successfully acquired and loaded [ 37.347544][ T1] ACPI: Interpreter enabled [ 37.439123][ T1] ACPI: (supports S0 S3 S4 S5) [ 37.495004][ T1] ACPI: Using IOAPIC for interrupt routing [ 37.607236][ T1] PCI: Using host bridge windows from ACPI; if necessary, use "pci=nocrs" and report a bug [ 37.771571][ T1] ACPI: Enabled 3 GPEs in block 00 to 3F [ 38.511571][ T1] ACPI: PCI Root Bridge [PCI0] (domain 0000 [bus 00-ff]) [ 38.534890][ T1] acpi PNP0A08:00: _OSC: OS supports [ExtendedConfig ASPM ClockPM Segments MSI HPX-Type3] [ 38.565303][ T1] acpi PNP0A08:00: _OSC: platform does not support [LTR] [ 38.579106][ T1] acpi PNP0A08:00: _OSC: OS now controls [PCIeHotplug PME AER PCIeCapability] [ 38.649938][ T1] PCI host bridge to bus 0000:00 [ 38.652921][ T1] pci_bus 0000:00: Unknown NUMA node; performance will be reduced [ 38.663551][ T1] pci_bus 0000:00: root bus resource [io 0x0000-0x0cf7 window] [ 38.672512][ T1] pci_bus 0000:00: root bus resource [io 0x0d00-0xffff window] [ 38.682263][ T1] pci_bus 0000:00: root bus resource [mem 0x000a0000-0x000bffff window] [ 38.692338][ T1] pci_bus 0000:00: root bus resource [mem 0x80000000-0xafffffff window] [ 38.702890][ T1] pci_bus 0000:00: root bus resource [mem 0xc0000000-0xfebfffff window] [ 38.712460][ T1] pci_bus 0000:00: root bus resource [mem 0x580000000-0xd7fffffff window] [ 38.726094][ T1] pci_bus 0000:00: root bus resource [bus 00-ff] [ 38.765826][ T1] pci 0000:00:00.0: [8086:29c0] type 00 class 0x060000 [ 38.986315][ T1] pci 0000:00:01.0: [1af4:1050] type 00 class 0x030000 [ 39.111571][ T1] pci 0000:00:01.0: reg 0x10: [mem 0xfe000000-0xfe7fffff pref] [ 39.381571][ T1] pci 0000:00:01.0: reg 0x18: [mem 0xfe800000-0xfe803fff 64bit pref] [ 39.621571][ T1] pci 0000:00:01.0: reg 0x20: [mem 0xfebf4000-0xfebf4fff] [ 39.871571][ T1] pci 0000:00:01.0: reg 0x30: [mem 0xfebe0000-0xfebeffff pref] [ 40.471571][ T1] pci 0000:00:02.0: [1af4:1000] type 00 class 0x020000 [ 40.584698][ T1] pci 0000:00:02.0: reg 0x10: [io 0xc680-0xc69f] [ 40.681352][ T1] pci 0000:00:02.0: reg 0x14: [mem 0xfebf5000-0xfebf5fff] [ 40.788305][ T1] pci 0000:00:02.0: reg 0x20: [mem 0xfe804000-0xfe807fff 64bit pref] [ 40.891103][ T1] pci 0000:00:02.0: reg 0x30: [mem 0xfeb40000-0xfeb7ffff pref] [ 41.091571][ T1] pci 0000:00:03.0: [8086:100e] type 00 class 0x020000 [ 41.191141][ T1] pci 0000:00:03.0: reg 0x10: [mem 0xfebc0000-0xfebdffff] [ 41.306520][ T1] pci 0000:00:03.0: reg 0x14: [io 0xc600-0xc63f] [ 41.434081][ T1] pci 0000:00:03.0: reg 0x30: [mem 0xfeb80000-0xfebbffff pref] [ 41.573003][ T1] pci 0000:00:04.0: [1274:5000] type 00 class 0x040100 [ 41.663829][ T1] pci 0000:00:04.0: reg 0x10: [io 0xc400-0xc4ff] [ 41.780789][ T1] pci 0000:00:05.0: [8086:2415] type 00 class 0x040100 [ 41.866137][ T1] pci 0000:00:05.0: reg 0x10: [io 0xc000-0xc3ff] [ 41.939579][ T1] pci 0000:00:05.0: reg 0x14: [io 0xc500-0xc5ff] [ 42.086851][ T1] pci 0000:00:06.0: [8086:2668] type 00 class 0x040300 [ 42.154265][ T1] pci 0000:00:06.0: reg 0x10: [mem 0xfebf0000-0xfebf3fff] [ 42.306483][ T1] pci 0000:00:07.0: [1af4:1009] type 00 class 0x000200 [ 42.373591][ T1] pci 0000:00:07.0: reg 0x10: [io 0xc6a0-0xc6bf] [ 42.448942][ T1] pci 0000:00:07.0: reg 0x14: [mem 0xfebf6000-0xfebf6fff] [ 42.561039][ T1] pci 0000:00:07.0: reg 0x20: [mem 0xfe808000-0xfe80bfff 64bit pref] [ 42.750662][ T1] pci 0000:00:1d.0: [8086:2934] type 00 class 0x0c0300 [ 42.877984][ T1] pci 0000:00:1d.0: reg 0x20: [io 0xc6c0-0xc6df] [ 43.012667][ T1] pci 0000:00:1d.1: [8086:2935] type 00 class 0x0c0300 [ 43.145223][ T1] pci 0000:00:1d.1: reg 0x20: [io 0xc6e0-0xc6ff] [ 43.252601][ T1] pci 0000:00:1d.2: [8086:2936] type 00 class 0x0c0300 [ 43.344641][ T1] pci 0000:00:1d.2: reg 0x20: [io 0xc700-0xc71f] [ 43.451921][ T1] pci 0000:00:1d.7: [8086:293a] type 00 class 0x0c0320 [ 43.542173][ T1] pci 0000:00:1d.7: reg 0x10: [mem 0xfebf7000-0xfebf7fff] [ 43.652586][ T1] pci 0000:00:1f.0: [8086:2918] type 00 class 0x060100 [ 43.802693][ T1] pci 0000:00:1f.0: quirk: [io 0x0600-0x067f] claimed by ICH6 ACPI/GPIO/TCO [ 43.921571][ T1] pci 0000:00:1f.0: quirk_ich7_lpc+0x0/0x190 took 126953 usecs [ 44.038013][ T1] pci 0000:00:1f.2: [8086:2922] type 00 class 0x010601 [ 44.149918][ T1] pci 0000:00:1f.2: reg 0x20: [io 0xc720-0xc73f] [ 44.197467][ T1] pci 0000:00:1f.2: reg 0x24: [mem 0xfebf8000-0xfebf8fff] [ 44.271214][ T1] pci 0000:00:1f.3: [8086:2930] type 00 class 0x0c0500 [ 44.351903][ T1] pci 0000:00:1f.3: reg 0x20: [io 0x0700-0x073f] [ 44.591571][ T1] ACPI: PCI Interrupt Link [LNKA] (IRQs 5 *10 11) [ 44.676649][ T1] ACPI: PCI Interrupt Link [LNKB] (IRQs 5 *10 11) [ 44.750087][ T1] ACPI: PCI Interrupt Link [LNKC] (IRQs 5 10 *11) [ 44.819334][ T1] ACPI: PCI Interrupt Link [LNKD] (IRQs 5 10 *11) [ 44.898765][ T1] ACPI: PCI Interrupt Link [LNKE] (IRQs 5 *10 11) [ 44.980587][ T1] ACPI: PCI Interrupt Link [LNKF] (IRQs 5 *10 11) [ 45.067810][ T1] ACPI: PCI Interrupt Link [LNKG] (IRQs 5 10 *11) [ 45.137543][ T1] ACPI: PCI Interrupt Link [LNKH] (IRQs 5 10 *11) [ 45.214626][ T1] ACPI: PCI Interrupt Link [GSIA] (IRQs *16) [ 45.283487][ T1] ACPI: PCI Interrupt Link [GSIB] (IRQs *17) [ 45.342306][ T1] ACPI: PCI Interrupt Link [GSIC] (IRQs *18) [ 45.402584][ T1] ACPI: PCI Interrupt Link [GSID] (IRQs *19) [ 45.462398][ T1] ACPI: PCI Interrupt Link [GSIE] (IRQs *20) [ 45.533563][ T1] ACPI: PCI Interrupt Link [GSIF] (IRQs *21) [ 45.602435][ T1] ACPI: PCI Interrupt Link [GSIG] (IRQs *22) [ 45.692752][ T1] ACPI: PCI Interrupt Link [GSIH] (IRQs *23) [ 46.068340][ T1] iommu: Default domain type: Translated [ 46.199566][ T1] pci 0000:00:01.0: vgaarb: setting as boot VGA device [ 46.201571][ T1] pci 0000:00:01.0: vgaarb: VGA device added: decodes=io+mem,owns=io+mem,locks=none [ 46.202178][ T1] pci 0000:00:01.0: vgaarb: bridge control possible [ 46.212217][ T1] vgaarb: loaded [ 46.385187][ T1] SCSI subsystem initialized [ 46.549527][ T1] ACPI: bus type USB registered [ 46.623624][ T1] usbcore: registered new interface driver usbfs [ 46.706186][ T1] usbcore: registered new interface driver hub [ 46.805120][ T1] usbcore: registered new device driver usb [ 46.902872][ T1] mc: Linux media interface: v0.10 [ 46.975877][ T1] videodev: Linux video capture interface: v2.00 [ 47.107197][ T1] pps_core: LinuxPPS API ver. 1 registered [ 47.202069][ T1] pps_core: Software ver. 5.3.6 - Copyright 2005-2007 Rodolfo Giometti [ 47.331572][ T1] PTP clock support registered [ 47.422387][ T1] EDAC MC: Ver: 3.0.0 [ 47.623812][ T1] Advanced Linux Sound Architecture Driver Initialized. [ 47.861571][ T1] Bluetooth: Core ver 2.22 [ 47.916349][ T1] NET: Registered protocol family 31 [ 47.982387][ T1] Bluetooth: HCI device and connection manager initialized [ 48.094798][ T1] Bluetooth: HCI socket layer initialized [ 48.172404][ T1] Bluetooth: L2CAP socket layer initialized [ 48.263957][ T1] Bluetooth: SCO socket layer initialized [ 48.356382][ T1] NET: Registered protocol family 8 [ 48.432111][ T1] NET: Registered protocol family 20 [ 48.510095][ T1] NetLabel: Initializing [ 48.564052][ T1] NetLabel: domain hash size = 128 [ 48.642387][ T1] NetLabel: protocols = UNLABELED CIPSOv4 CALIPSO [ 48.740006][ T1] NetLabel: unlabeled traffic allowed by default [ 48.831968][ T1] nfc: nfc_init: NFC Core ver 0.1 [ 48.901572][ T1] NET: Registered protocol family 39 [ 48.977591][ T1] PCI: Using ACPI for IRQ routing [ 58.264904][ T1] hpet0: at MMIO 0xfed00000, IRQs 2, 8, 0 [ 58.276186][ T1] hpet0: 3 comparators, 64-bit 100.000000 MHz counter [ 58.397310][ T1] clocksource: Switched to clocksource kvm-clock [ 66.499903][ T1] VFS: Disk quotas dquot_6.6.0 [ 66.614738][ T1] VFS: Dquot-cache hash table entries: 512 (order 0, 4096 bytes) [ 66.811871][ T1] FS-Cache: Loaded [ 66.995041][ T1] CacheFiles: Loaded [ 67.089109][ T1] TOMOYO: 2.6.0 [ 67.128362][ T1] Mandatory Access Control activated. [ 67.212805][ T1] pnp: PnP ACPI init [ 67.546170][ T1] pnp: PnP ACPI: found 6 devices [ 68.120302][ T1] clocksource: acpi_pm: mask: 0xffffff max_cycles: 0xffffff, max_idle_ns: 2085701024 ns [ 68.263607][ T1] NET: Registered protocol family 2 [ 68.453184][ T1] tcp_listen_portaddr_hash hash table entries: 1024 (order: 4, 81920 bytes, vmalloc) [ 68.563962][ T1] TCP established hash table entries: 16384 (order: 5, 131072 bytes, vmalloc) [ 68.693891][ T1] TCP bind hash table entries: 16384 (order: 8, 1179648 bytes, vmalloc) [ 68.793781][ T1] TCP: Hash tables configured (established 16384 bind 16384) [ 68.910399][ T1] MPTCP token hash table entries: 2048 (order: 5, 180224 bytes, vmalloc) [ 69.008381][ T1] UDP hash table entries: 1024 (order: 5, 163840 bytes, vmalloc) [ 69.107272][ T1] UDP-Lite hash table entries: 1024 (order: 5, 163840 bytes, vmalloc) [ 69.245647][ T1] NET: Registered protocol family 1 [ 69.407430][ T1] RPC: Registered named UNIX socket transport module. [ 69.504137][ T1] RPC: Registered udp transport module. [ 69.587347][ T1] RPC: Registered tcp transport module. [ 69.684829][ T1] RPC: Registered tcp NFSv4.1 backchannel transport module. [ 69.855078][ T1] NET: Registered protocol family 44 [ 69.956302][ T1] pci_bus 0000:00: resource 4 [io 0x0000-0x0cf7 window] [ 70.067552][ T1] pci_bus 0000:00: resource 5 [io 0x0d00-0xffff window] [ 70.167794][ T1] pci_bus 0000:00: resource 6 [mem 0x000a0000-0x000bffff window] [ 70.276269][ T1] pci_bus 0000:00: resource 7 [mem 0x80000000-0xafffffff window] [ 70.376086][ T1] pci_bus 0000:00: resource 8 [mem 0xc0000000-0xfebfffff window] [ 70.475780][ T1] pci_bus 0000:00: resource 9 [mem 0x580000000-0xd7fffffff window] [ 70.609210][ T1] pci 0000:00:01.0: Video device with shadowed ROM at [mem 0x000c0000-0x000dffff] [ 70.746431][ T1] pci 0000:00:01.0: pci_fixup_video+0x0/0x270 took 130100 usecs [ 71.059709][ T1] PCI Interrupt Link [GSIA] enabled at IRQ 16 [ 71.452280][ T1] pci 0000:00:1d.0: quirk_usb_early_handoff+0x0/0x105b took 514038 usecs [ 71.609416][ T1] PCI Interrupt Link [GSIB] enabled at IRQ 17 [ 71.909353][ C0] hrtimer: interrupt took 112310708 ns [ 72.932264][ T1] pci 0000:00:1d.1: quirk_usb_early_handoff+0x0/0x105b took 1271934 usecs [ 73.195753][ T1] PCI Interrupt Link [GSIC] enabled at IRQ 18 [ 73.412712][ T1] pci 0000:00:1d.2: quirk_usb_early_handoff+0x0/0x105b took 302058 usecs [ 73.577270][ T1] PCI Interrupt Link [GSID] enabled at IRQ 19 [ 73.839031][ T1] pci 0000:00:1d.7: quirk_usb_early_handoff+0x0/0x105b took 280779 usecs [ 74.001411][ T1] PCI: CLS 0 bytes, default 64 [ 74.678176][ T1] PCI-DMA: Using software bounce buffering for IO (SWIOTLB) [ 74.795801][ T1] software IO TLB: mapped [mem 0x7ac00000-0x7ec00000] (64MB) [ 75.602200][ T1] kvm: no hardware support [ 75.703162][ T1] has_svm: not amd or hygon [ 75.797923][ T1] kvm: no hardware support [ 75.899103][ T1] clocksource: tsc: mask: 0xffffffffffffffff max_cycles: 0x1cd4c92266a, max_idle_ns: 440795223404 ns [ 75.976310][ T1612] kworker/u17:14 (1612) used greatest stack depth: 27424 bytes left [ 76.209956][ T1] clocksource: Switched to clocksource tsc [ 76.351978][ T1] mce: Machine check injector initialized [ 76.667560][ T1] check: Scanning for low memory corruption every 60 seconds [ 78.798921][ T1] Initialise system trusted keyrings [ 78.969807][ T1] workingset: timestamp_bits=40 max_order=19 bucket_order=0 [ 79.104877][ T1] zbud: loaded [ 79.356379][ T1] DLM installed [ 79.438167][ T1] squashfs: version 4.0 (2009/01/31) Phillip Lougher [ 79.577011][ T1] FS-Cache: Netfs 'nfs' registered for caching [ 79.710428][ T1] NFS: Registering the id_resolver key type [ 79.797881][ T1] Key type id_resolver registered [ 79.878495][ T1] Key type id_legacy registered [ 79.967746][ T1] nfs4filelayout_init: NFSv4 File Layout Driver Registering... [ 80.074080][ T1] Installing knfsd (copyright (C) 1996 okir@monad.swb.de). [ 80.308942][ T1] FS-Cache: Netfs 'cifs' registered for caching [ 80.449589][ T1] Key type cifs.spnego registered [ 80.525545][ T1] Key type cifs.idmap registered [ 80.599494][ T1] ntfs: driver 2.1.32 [Flags: R/W]. [ 80.706312][ T1] fuse: init (API version 7.31) [ 80.973348][ T1] JFS: nTxBlock = 8192, nTxLock = 65536 [ 81.353222][ T1] SGI XFS with ACLs, security attributes, realtime, quota, no debug enabled [ 81.546249][ T1] 9p: Installing v9fs 9p2000 file system support [ 81.640943][ T1] FS-Cache: Netfs '9p' registered for caching [ 81.744965][ T1] ocfs2: Registered cluster interface o2cb [ 81.837303][ T1] ocfs2: Registered cluster interface user [ 81.920494][ T1] OCFS2 User DLM kernel interface loaded [ 82.133854][ T1] gfs2: GFS2 installed [ 82.264319][ T1] FS-Cache: Netfs 'ceph' registered for caching [ 82.341284][ T1] ceph: loaded (mds proto 32) [ 82.581233][ T1] NET: Registered protocol family 38 [ 82.646513][ T1] async_tx: api initialized (async) [ 82.710387][ T1] Key type asymmetric registered [ 82.773757][ T1] Asymmetric key parser 'x509' registered [ 82.850482][ T1] Asymmetric key parser 'pkcs8' registered [ 82.931093][ T1] Key type pkcs7_test registered [ 82.995140][ T1] Asymmetric key parser 'tpm_parser' registered [ 83.080939][ T1] Block layer SCSI generic (bsg) driver version 0.4 loaded (major 243) [ 83.235464][ T1] io scheduler mq-deadline registered [ 83.318953][ T1] io scheduler kyber registered [ 83.407406][ T1] io scheduler bfq registered [ 83.647935][ T1] hgafb: HGA card not detected. [ 83.736808][ T1] hgafb: probe of hgafb.0 failed with error -22 [ 83.836886][ T1] usbcore: registered new interface driver udlfb [ 84.029196][ T1] uvesafb: failed to execute /sbin/v86d [ 84.111484][ T1] uvesafb: make sure that the v86d helper is installed and executable [ 84.225131][ T1] uvesafb: Getting VBE info block failed (eax=0x4f00, err=-2) [ 84.332659][ T1] uvesafb: vbe_init() failed with -22 [ 84.415772][ T1] uvesafb: probe of uvesafb.0 failed with error -22 [ 84.523035][ T1] vga16fb: mapped to 0x0000000050918458 [ 166.351873][ T1] Console: switching to colour frame buffer device 80x30 [ 311.753720][ T1] fb0: VGA16 VGA frame buffer device [ 312.708797][ T1] input: Power Button as /devices/LNXSYSTM:00/LNXPWRBN:00/input/input0 [ 313.007368][ T1] ACPI: Power Button [PWRF] [ 313.987639][ T450] ================================================================== [ 313.992121][ T450] BUG: KASAN: global-out-of-bounds in internal_create_group+0x9d8/0xb20 [ 313.992121][ T450] Read of size 8 at addr ffffffff8a2e73d0 by task kworker/u17:11/450 [ 313.992121][ T450] [ 313.992121][ T450] CPU: 3 PID: 450 Comm: kworker/u17:11 Not tainted 5.9.0-rc1-syzkaller #0 [ 314.477334][ T450] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS rel-1.12.0-59-gc9ba5276e321-prebuilt.qemu.org 04/01/2014 [ 314.477334][ T450] Workqueue: events_unbound async_run_entry_fn [ 314.477334][ T450] Call Trace: [ 314.477334][ T450] dump_stack+0x18f/0x20d [ 314.477334][ T450] ? internal_create_group+0x9d8/0xb20 [ 314.477334][ T450] ? internal_create_group+0x9d8/0xb20 [ 314.477334][ T450] print_address_description.constprop.0.cold+0x5/0x497 [ 314.477334][ T450] ? vprintk_func+0x97/0x1a6 [ 314.477334][ T450] ? internal_create_group+0x9d8/0xb20 [ 314.477334][ T450] ? internal_create_group+0x9d8/0xb20 [ 314.477334][ T450] kasan_report.cold+0x1f/0x37 [ 314.477334][ T450] ? internal_create_group+0x9d8/0xb20 [ 314.477334][ T450] ? state_show+0xf0/0xf0 [ 314.477334][ T450] internal_create_group+0x9d8/0xb20 [ 314.477334][ T450] ? sysfs_remove_group+0x170/0x170 [ 314.477334][ T450] ? device_add+0x54f/0x1c40 [ 314.477334][ T450] internal_create_groups.part.0+0x90/0x140 [ 314.477334][ T450] sysfs_create_groups+0x25/0x50 [ 314.477334][ T450] device_add+0x7fd/0x1c40 [ 314.477334][ T450] ? devlink_add_symlinks+0x450/0x450 [ 314.477334][ T450] ? lock_release+0x8e0/0x8e0 [ 314.477334][ T450] ? lock_downgrade+0x830/0x830 [ 314.477334][ T450] ? __schedule+0x88e/0x21e0 [ 314.477334][ T450] ? nd_synchronize+0x20/0x20 [ 314.477334][ T450] nd_async_device_register+0x12/0x80 [ 314.477334][ T450] async_run_entry_fn+0x121/0x530 [ 314.477334][ T450] process_one_work+0x94c/0x1670 [ 314.477334][ T450] ? lock_release+0x8e0/0x8e0 [ 314.477334][ T450] ? pwq_dec_nr_in_flight+0x2d0/0x2d0 [ 314.477334][ T450] ? rwlock_bug.part.0+0x90/0x90 [ 316.473550][ T450] worker_thread+0x64c/0x1120 [ 316.473550][ T450] ? __kthread_parkme+0x13f/0x1e0 [ 316.473550][ T450] ? process_one_work+0x1670/0x1670 [ 316.473550][ T450] kthread+0x3b5/0x4a0 [ 316.473550][ T450] ? __kthread_bind_mask+0xc0/0xc0 [ 316.473550][ T450] ? __kthread_bind_mask+0xc0/0xc0 [ 316.473550][ T450] ret_from_fork+0x1f/0x30 [ 316.473550][ T450] [ 316.473550][ T450] The buggy address belongs to the variable: [ 316.473550][ T450] nvdimm_firmware_attributes+0x10/0x40 [ 316.473550][ T450] [ 316.473550][ T450] Memory state around the buggy address: [ 316.473550][ T450] ffffffff8a2e7280: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 316.473550][ T450] ffffffff8a2e7300: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 316.473550][ T450] >ffffffff8a2e7380: 00 00 00 00 f9 f9 f9 f9 00 00 f9 f9 f9 f9 f9 f9 [ 316.473550][ T450] ^ [ 316.473550][ T450] ffffffff8a2e7400: 00 00 00 00 00 00 00 f9 f9 f9 f9 f9 00 00 00 00 [ 316.473550][ T450] ffffffff8a2e7480: 00 00 00 f9 f9 f9 f9 f9 00 00 00 00 00 00 00 f9 [ 316.473550][ T450] ================================================================== [ 316.473550][ T450] Disabling lock debugging due to kernel taint [ 317.883800][ T450] Kernel panic - not syncing: panic_on_warn set ... [ 317.892615][ T450] CPU: 3 PID: 450 Comm: kworker/u17:11 Tainted: G B 5.9.0-rc1-syzkaller #0 [ 317.892615][ T450] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS rel-1.12.0-59-gc9ba5276e321-prebuilt.qemu.org 04/01/2014 [ 317.892615][ T450] Workqueue: events_unbound async_run_entry_fn [ 317.892615][ T450] Call Trace: [ 317.892615][ T450] dump_stack+0x18f/0x20d [ 317.892615][ T450] ? internal_create_group+0x960/0xb20 [ 317.892615][ T450] panic+0x2e3/0x75c [ 317.892615][ T450] ? __warn_printk+0xf3/0xf3 [ 317.892615][ T450] ? preempt_schedule_common+0x59/0xc0 [ 317.892615][ T450] ? internal_create_group+0x9d8/0xb20 [ 318.515194][ T450] ? preempt_schedule_thunk+0x16/0x18 [ 318.515194][ T450] ? trace_hardirqs_on+0x55/0x220 [ 318.515194][ T450] ? internal_create_group+0x9d8/0xb20 [ 318.515194][ T450] ? internal_create_group+0x9d8/0xb20 [ 318.515194][ T450] end_report+0x4d/0x53 [ 318.515194][ T450] kasan_report.cold+0xd/0x37 [ 318.515194][ T450] ? internal_create_group+0x9d8/0xb20 [ 318.515194][ T450] ? state_show+0xf0/0xf0 [ 318.515194][ T450] internal_create_group+0x9d8/0xb20 [ 318.515194][ T450] ? sysfs_remove_group+0x170/0x170 [ 318.515194][ T450] ? device_add+0x54f/0x1c40 [ 318.515194][ T450] internal_create_groups.part.0+0x90/0x140 [ 318.515194][ T450] sysfs_create_groups+0x25/0x50 [ 318.515194][ T450] device_add+0x7fd/0x1c40 [ 318.515194][ T450] ? devlink_add_symlinks+0x450/0x450 [ 318.515194][ T450] ? lock_release+0x8e0/0x8e0 [ 318.515194][ T450] ? lock_downgrade+0x830/0x830 [ 318.515194][ T450] ? __schedule+0x88e/0x21e0 [ 318.515194][ T450] ? nd_synchronize+0x20/0x20 [ 318.515194][ T450] nd_async_device_register+0x12/0x80 [ 318.515194][ T450] async_run_entry_fn+0x121/0x530 [ 318.515194][ T450] process_one_work+0x94c/0x1670 [ 318.515194][ T450] ? lock_release+0x8e0/0x8e0 [ 318.515194][ T450] ? pwq_dec_nr_in_flight+0x2d0/0x2d0 [ 318.515194][ T450] ? rwlock_bug.part.0+0x90/0x90 [ 318.515194][ T450] worker_thread+0x64c/0x1120 [ 318.515194][ T450] ? __kthread_parkme+0x13f/0x1e0 [ 318.515194][ T450] ? process_one_work+0x1670/0x1670 [ 318.515194][ T450] kthread+0x3b5/0x4a0 [ 318.515194][ T450] ? __kthread_bind_mask+0xc0/0xc0 [ 318.515194][ T450] ? __kthread_bind_mask+0xc0/0xc0 [ 318.515194][ T450] ret_from_fork+0x1f/0x30 [ 318.515194][ T450] Kernel Offset: disabled [ 318.515194][ T450] Rebooting in 86400 seconds..