[ 0.000000][ T0] Linux version 5.9.0-rc4-syzkaller (syzkaller@syzkaller) (clang version 10.0.0 (https://github.com/llvm/llvm-project/ c2443155a0fb245c8f17f2c1c72b6ea391e86e81), GNU ld (GNU Binutils for Ubuntu) 2.26.1) #0 SMP now [ 0.000000][ T0] Command line: BOOT_IMAGE=/vmlinuz root=/dev/sda1 console=ttyS0 earlyprintk=serial vsyscall=native rodata=n oops=panic panic_on_warn=1 nmi_watchdog=panic panic=86400 net.ifnames=0 sysctl.kernel.hung_task_all_cpu_backtrace=1 security=apparmor lsm=lockdown,yama,safesetid,integrity,tomoyo,apparmor,bpf ima_policy=tcb workqueue.watchdog_thresh=140 kvm-intel.nested=1 nf-conntrack-ftp.ports=20000 nf-conntrack-tftp.ports=20000 nf-conntrack-sip.ports=20000 nf-conntrack-irc.ports=20000 nf-conntrack-sane.ports=20000 vivid.n_devs=16 vivid.multiplanar=1,2,1,2,1,2,1,2,1,2,1,2,1,2,1,2 netrom.nr_ndevs=16 rose.rose_ndevs=16 spec_store_bypass_disable=prctl numa=fake=2 nopcid dummy_hcd.num=8 binder.debug_mask=0 rcupdate.rcu_expedited=1 [ 0.000000][ T0] KERNEL supported cpus: [ 0.000000][ T0] Intel GenuineIntel [ 0.000000][ T0] AMD AuthenticAMD [ 0.000000][ T0] Centaur CentaurHauls [ 0.000000][ T0] x86/fpu: Supporting XSAVE feature 0x001: 'x87 floating point registers' [ 0.000000][ T0] x86/fpu: Supporting XSAVE feature 0x002: 'SSE registers' [ 0.000000][ T0] x86/fpu: Supporting XSAVE feature 0x004: 'AVX registers' [ 0.000000][ T0] x86/fpu: xstate_offset[2]: 576, xstate_sizes[2]: 256 [ 0.000000][ T0] x86/fpu: Enabled xstate features 0x7, context size is 832 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 0x0000000000100000-0x00000000bfffcfff] usable [ 0.000000][ T0] BIOS-e820: [mem 0x00000000bfffd000-0x00000000bfffffff] reserved [ 0.000000][ T0] BIOS-e820: [mem 0x00000000fffbc000-0x00000000ffffffff] reserved [ 0.000000][ T0] BIOS-e820: [mem 0x0000000100000000-0x000000021fffffff] usable [ 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 2.4 present. [ 0.000000][ T0] DMI: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 0.000000][ T0] Hypervisor detected: KVM [ 0.000000][ T0] kvm-clock: Using msrs 4b564d01 and 4b564d00 [ 0.000011][ T0] kvm-clock: cpu 0, msr 12fb8001, primary cpu clock [ 0.000012][ T0] kvm-clock: using sched offset of 5482282826 cycles [ 0.001417][ T0] clocksource: kvm-clock: mask: 0xffffffffffffffff max_cycles: 0x1cd42e4dffb, max_idle_ns: 881590591483 ns [ 0.006703][ T0] tsc: Detected 2300.000 MHz processor [ 0.016613][ T0] last_pfn = 0x220000 max_arch_pfn = 0x400000000 [ 0.019326][ T0] x86/PAT: Configuration [0-7]: WB WC UC- UC WB WP UC- WT [ 0.021413][ T0] last_pfn = 0xbfffd max_arch_pfn = 0x400000000 [ 0.041672][ T0] found SMP MP-table at [mem 0x000f24f0-0x000f24ff] [ 0.043696][ T0] check: Scanning 1 areas for low memory corruption [ 0.045796][ T0] Using GB pages for direct mapping [ 0.051835][ T0] ACPI: Early table checksum verification disabled [ 0.053513][ T0] ACPI: RSDP 0x00000000000F2270 000014 (v00 Google) [ 0.055561][ T0] ACPI: RSDT 0x00000000BFFFFFC0 000038 (v01 Google GOOGRSDT 00000001 GOOG 00000001) [ 0.058431][ T0] ACPI: FACP 0x00000000BFFFF380 0000F4 (v02 Google GOOGFACP 00000001 GOOG 00000001) [ 0.060580][ T0] ACPI: DSDT 0x00000000BFFFDAC0 0018BA (v01 Google GOOGDSDT 00000001 GOOG 00000001) [ 0.062350][ T0] ACPI: FACS 0x00000000BFFFDA80 000040 [ 0.063792][ T0] ACPI: FACS 0x00000000BFFFDA80 000040 [ 0.065718][ T0] ACPI: SRAT 0x00000000BFFFFEB0 0000C8 (v03 Google GOOGSRAT 00000001 GOOG 00000001) [ 0.068902][ T0] ACPI: APIC 0x00000000BFFFFE00 000076 (v05 Google GOOGAPIC 00000001 GOOG 00000001) [ 0.071358][ T0] ACPI: SSDT 0x00000000BFFFF480 000980 (v01 Google GOOGSSDT 00000001 GOOG 00000001) [ 0.074098][ T0] ACPI: WAET 0x00000000BFFFFE80 000028 (v01 Google GOOGWAET 00000001 GOOG 00000001) [ 0.075938][ T0] SRAT: PXM 0 -> APIC 0x00 -> Node 0 [ 0.076687][ T0] SRAT: PXM 0 -> APIC 0x01 -> Node 0 [ 0.078082][ T0] ACPI: SRAT: Node 0 PXM 0 [mem 0x00000000-0x0009ffff] [ 0.079832][ T0] ACPI: SRAT: Node 0 PXM 0 [mem 0x00100000-0xbfffffff] [ 0.081451][ T0] ACPI: SRAT: Node 0 PXM 0 [mem 0x100000000-0x21fffffff] [ 0.083749][ T0] NUMA: Node 0 [mem 0x00000000-0x0009ffff] + [mem 0x00100000-0xbfffffff] -> [mem 0x00000000-0xbfffffff] [ 0.086336][ T0] NUMA: Node 0 [mem 0x00000000-0xbfffffff] + [mem 0x100000000-0x21fffffff] -> [mem 0x00000000-0x21fffffff] [ 0.089242][ T0] Faking node 0 at [mem 0x0000000000000000-0x000000012fffffff] (4864MB) [ 0.091278][ T0] Faking node 1 at [mem 0x0000000130000000-0x000000021fffffff] (3840MB) [ 0.094244][ T0] NODE_DATA(0) allocated [mem 0x12fffb000-0x12fffffff] [ 0.097100][ T0] NODE_DATA(1) allocated [mem 0x21fff8000-0x21fffcfff] [ 0.099790][ T0] Zone ranges: [ 0.100605][ T0] DMA [mem 0x0000000000001000-0x0000000000ffffff] [ 0.102992][ T0] DMA32 [mem 0x0000000001000000-0x00000000ffffffff] [ 0.105063][ T0] Normal [mem 0x0000000100000000-0x000000021fffffff] [ 0.106974][ T0] Device empty [ 0.107916][ T0] Movable zone start for each node [ 0.109213][ T0] Early memory node ranges [ 0.110348][ T0] node 0: [mem 0x0000000000001000-0x000000000009efff] [ 0.112463][ T0] node 0: [mem 0x0000000000100000-0x00000000bfffcfff] [ 0.113698][ T0] node 0: [mem 0x0000000100000000-0x000000012fffffff] [ 0.115306][ T0] node 1: [mem 0x0000000130000000-0x000000021fffffff] [ 0.118431][ T0] Zeroed struct page in unavailable ranges: 101 pages [ 0.118446][ T0] Initmem setup node 0 [mem 0x0000000000001000-0x000000012fffffff] [ 0.389541][ T0] Initmem setup node 1 [mem 0x0000000130000000-0x000000021fffffff] [ 0.659332][ T0] ACPI: PM-Timer IO Port: 0xb008 [ 0.661143][ T0] ACPI: LAPIC_NMI (acpi_id[0xff] dfl dfl lint[0x1]) [ 0.662978][ T0] IOAPIC[0]: apic_id 0, version 17, address 0xfec00000, GSI 0-23 [ 0.664486][ T0] ACPI: INT_SRC_OVR (bus 0 bus_irq 5 global_irq 5 high level) [ 0.667046][ T0] ACPI: INT_SRC_OVR (bus 0 bus_irq 9 global_irq 9 high level) [ 0.669539][ T0] ACPI: INT_SRC_OVR (bus 0 bus_irq 10 global_irq 10 high level) [ 0.671292][ T0] ACPI: INT_SRC_OVR (bus 0 bus_irq 11 global_irq 11 high level) [ 0.673521][ T0] Using ACPI (MADT) for SMP configuration information [ 0.675296][ T0] smpboot: Allowing 2 CPUs, 0 hotplug CPUs [ 0.677341][ T0] PM: hibernation: Registered nosave memory: [mem 0x00000000-0x00000fff] [ 0.679596][ T0] PM: hibernation: Registered nosave memory: [mem 0x0009f000-0x0009ffff] [ 0.681817][ T0] PM: hibernation: Registered nosave memory: [mem 0x000a0000-0x000effff] [ 0.684212][ T0] PM: hibernation: Registered nosave memory: [mem 0x000f0000-0x000fffff] [ 0.686345][ T0] PM: hibernation: Registered nosave memory: [mem 0xbfffd000-0xbfffffff] [ 0.688442][ T0] PM: hibernation: Registered nosave memory: [mem 0xc0000000-0xfffbbfff] [ 0.690707][ T0] PM: hibernation: Registered nosave memory: [mem 0xfffbc000-0xffffffff] [ 0.692723][ T0] [mem 0xc0000000-0xfffbbfff] available for PCI devices [ 0.694182][ T0] Booting paravirtualized kernel on KVM [ 0.695300][ T0] clocksource: refined-jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604462750000 ns [ 0.698385][ T0] setup_percpu: NR_CPUS:64 nr_cpumask_bits:64 nr_cpu_ids:2 nr_node_ids:2 [ 0.702470][ T0] percpu: Embedded 159 pages/cpu s612616 r8192 d30456 u1048576 [ 0.704627][ T0] Built 2 zonelists, mobility grouping on. Total pages: 1927557 [ 0.706984][ T0] Policy zone: Normal [ 0.708308][ T0] Kernel command line: BOOT_IMAGE=/vmlinuz root=/dev/sda1 console=ttyS0 earlyprintk=serial vsyscall=native rodata=n oops=panic panic_on_warn=1 nmi_watchdog=panic panic=86400 net.ifnames=0 sysctl.kernel.hung_task_all_cpu_backtrace=1 security=apparmor lsm=lockdown,yama,safesetid,integrity,tomoyo,apparmor,bpf ima_policy=tcb workqueue.watchdog_thresh=140 kvm-intel.nested=1 nf-conntrack-ftp.ports=20000 nf-conntrack-tftp.ports=20000 nf-conntrack-sip.ports=20000 nf-conntrack-irc.ports=20000 nf-conntrack-sane.ports=20000 vivid.n_devs=16 vivid.multiplanar=1,2,1,2,1,2,1,2,1,2,1,2,1,2,1,2 netrom.nr_ndevs=16 rose.rose_ndevs=16 spec_store_bypass_disable=prctl numa=fake=2 nopcid dummy_hcd.num=8 binder.debug_mask=0 rcupdate.rcu_expedited=1 [ 0.729875][ T0] mem auto-init: stack:off, heap alloc:on, heap free:off [ 1.214577][ T0] Memory: 2125760K/7863916K available (264199K kernel code, 9283K rwdata, 14180K rodata, 4188K init, 10636K bss, 1466300K reserved, 0K cma-reserved) [ 1.222616][ T0] SLUB: HWalign=64, Order=0-3, MinObjects=0, CPUs=2, Nodes=2 [ 1.224380][ T0] vmalloc area at: ffffc90000000000 [ 1.226115][ T0] vmalloc shadow at: ffffd10000000000 [ 1.227577][ T0] Starting KernelMemorySanitizer [ 1.232702][ T0] rcu: Hierarchical RCU implementation. [ 1.234555][ T0] rcu: RCU restricting CPUs from NR_CPUS=64 to nr_cpu_ids=2. [ 1.236699][ T0] rcu: RCU debug extended QS entry/exit. [ 1.238083][ T0] All grace periods are expedited (rcu_expedited). [ 1.239676][ T0] rcu: RCU calculated value of scheduler-enlistment delay is 10 jiffies. [ 1.241711][ T0] rcu: Adjusting geometry for rcu_fanout_leaf=16, nr_cpu_ids=2 [ 1.265125][ T0] NR_IRQS: 4352, nr_irqs: 440, preallocated irqs: 16 [ 1.269502][ T0] random: get_random_bytes called from start_kernel+0x4f7/0xbdf with crng_init=0 [ 1.270660][ T0] Console: colour VGA+ 80x25 [ 1.274884][ T0] printk: console [ttyS0] enabled [ 1.274884][ T0] printk: console [ttyS0] enabled [ 1.278180][ T0] printk: bootconsole [earlyser0] disabled [ 1.278180][ T0] printk: bootconsole [earlyser0] disabled [ 1.282000][ T0] mempolicy: Enabling automatic NUMA balancing. Configure with numa_balancing= or the kernel.numa_balancing sysctl [ 1.285536][ T0] ACPI: Core revision 20200717 [ 1.288670][ T0] APIC: Switch to symmetric I/O mode setup [ 1.290537][ T0] x2apic enabled [ 1.293315][ T0] Switched APIC routing to physical x2apic. [ 1.298837][ T0] ..TIMER: vector=0x30 apic1=0 pin1=0 apic2=-1 pin2=-1 [ 1.301123][ T0] clocksource: tsc-early: mask: 0xffffffffffffffff max_cycles: 0x212735223b2, max_idle_ns: 440795277976 ns [ 1.304303][ T0] Calibrating delay loop (skipped) preset value.. 4600.00 BogoMIPS (lpj=23000000) [ 1.307205][ T0] pid_max: default: 32768 minimum: 301 [ 1.315265][ T0] LSM: Security Framework initializing [ 1.317280][ T0] LSM: security= is ignored because it is superseded by lsm= [ 1.319554][ T0] Yama: becoming mindful. [ 1.321405][ T0] TOMOYO Linux initialized [ 1.323274][ T0] AppArmor: AppArmor initialized [ 1.349398][ T0] Dentry cache hash table entries: 1048576 (order: 11, 8388608 bytes, vmalloc) [ 1.364511][ T0] Inode-cache hash table entries: 524288 (order: 10, 4194304 bytes, vmalloc) [ 1.367384][ T0] Mount-cache hash table entries: 16384 (order: 5, 131072 bytes, vmalloc) [ 1.370412][ T0] Mountpoint-cache hash table entries: 16384 (order: 5, 131072 bytes, vmalloc) [ 1.381055][ T0] Last level iTLB entries: 4KB 1024, 2MB 1024, 4MB 1024 [ 1.384327][ T0] Last level dTLB entries: 4KB 1024, 2MB 1024, 4MB 1024, 1GB 4 [ 1.386831][ T0] Spectre V1 : Mitigation: usercopy/swapgs barriers and __user pointer sanitization [ 1.388954][ T0] Spectre V2 : Spectre mitigation: kernel not compiled with retpoline; no mitigation available! [ 1.389073][ T0] Speculative Store Bypass: Mitigation: Speculative Store Bypass disabled via prctl [ 1.394321][ T0] MDS: Mitigation: Clear CPU buffers [ 1.398715][ T0] Freeing SMP alternatives memory: 136K [ 1.521877][ T1] smpboot: CPU0: Intel(R) Xeon(R) CPU @ 2.30GHz (family: 0x6, model: 0x3f, stepping: 0x0) [ 1.524283][ T1] Performance Events: unsupported p6 CPU model 63 no PMU driver, software events only. [ 1.524283][ T1] rcu: Hierarchical SRCU implementation. [ 1.524283][ T1] dyndbg: Ignore empty _ddebug table in a CONFIG_DYNAMIC_DEBUG_CORE build [ 1.524424][ T1] NMI watchdog: Perf NMI watchdog permanently disabled [ 1.528370][ T1] smp: Bringing up secondary CPUs ... [ 1.534619][ T1] x86: Booting SMP configuration: [ 1.536339][ T1] .... node #0, CPUs: #1 [ 0.045922][ T0] kvm-clock: cpu 1, msr 12fb8041, secondary cpu clock [ 1.539036][ 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. [ 1.544508][ T1] smp: Brought up 2 nodes, 2 CPUs [ 1.546256][ T1] smpboot: Max logical packages: 1 [ 1.548003][ T1] smpboot: Total of 2 processors activated (9200.00 BogoMIPS) [ 1.556748][ T1] devtmpfs: initialized [ 1.556748][ T1] x86/mm: Memory block size: 128MB [ 1.603754][ T1] clocksource: jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604462750000 ns [ 1.602947][ T22] kworker/u4:0 (22) used greatest stack depth: 9872 bytes left [ 1.610270][ T1] futex hash table entries: 512 (order: 3, 32768 bytes, vmalloc) [ 1.613640][ T1] xor: automatically using best checksumming function avx [ 1.615856][ T1] PM: RTC time: 22:29:06, date: 2020-09-16 [ 1.620213][ T1] NET: Registered protocol family 16 [ 1.633879][ T1] audit: initializing netlink subsys (disabled) [ 1.634563][ T27] audit: type=2000 audit(1600295346.014:1): state=initialized audit_enabled=0 res=1 [ 1.639301][ T1] thermal_sys: Registered thermal governor 'step_wise' [ 1.639301][ T1] thermal_sys: Registered thermal governor 'user_space' [ 1.647684][ T1] cpuidle: using governor menu [ 1.647684][ T1] NET: Registered protocol family 42 [ 1.664451][ T1] ACPI: bus type PCI registered [ 1.666840][ T1] dca service started, version 1.12.1 [ 1.674417][ T1] PCI: Using configuration type 1 for base access [ 3.592277][ T1] WARNING: workqueue cpumask: online intersect > possible intersect [ 3.596057][ T1] HugeTLB registered 1.00 GiB page size, pre-allocated 0 pages [ 3.597043][ T1] HugeTLB registered 2.00 MiB page size, pre-allocated 0 pages [ 3.636421][ T1] cryptd: max_cpu_qlen set to 1000 [ 3.864336][ T1] raid6: avx2x4 gen() 274 MB/s [ 4.029576][ T1] raid6: avx2x4 xor() 261 MB/s [ 4.199608][ T1] raid6: avx2x2 gen() 265 MB/s [ 4.369593][ T1] raid6: avx2x2 xor() 294 MB/s [ 4.544333][ T1] raid6: avx2x1 gen() 202 MB/s [ 4.709573][ T1] raid6: avx2x1 xor() 285 MB/s [ 4.884334][ T1] raid6: sse2x4 gen() 161 MB/s [ 5.049706][ T1] raid6: sse2x4 xor() 129 MB/s [ 5.224333][ T1] raid6: sse2x2 gen() 142 MB/s [ 5.389587][ T1] raid6: sse2x2 xor() 147 MB/s [ 5.564334][ T1] raid6: sse2x1 gen() 102 MB/s [ 5.729581][ T1] raid6: sse2x1 xor() 143 MB/s [ 5.734449][ T1] raid6: using algorithm avx2x4 gen() 274 MB/s [ 5.734449][ T1] raid6: .... xor() 261 MB/s, rmw enabled [ 5.734449][ T1] raid6: using avx2x2 recovery algorithm [ 5.737394][ T1] ACPI: Added _OSI(Module Device) [ 5.738790][ T1] ACPI: Added _OSI(Processor Device) [ 5.745492][ T1] ACPI: Added _OSI(3.0 _SCP Extensions) [ 5.745492][ T1] ACPI: Added _OSI(Processor Aggregator Device) [ 5.745492][ T1] ACPI: Added _OSI(Linux-Dell-Video) [ 5.745921][ T1] ACPI: Added _OSI(Linux-Lenovo-NV-HDMI-Audio) [ 5.747999][ T1] ACPI: Added _OSI(Linux-HPI-Hybrid-Graphics) [ 5.864335][ T1] ACPI: 2 ACPI AML tables successfully acquired and loaded [ 5.894495][ T1] ACPI: Interpreter enabled [ 5.894495][ T1] ACPI: (supports S0 S3 S4 S5) [ 5.894495][ T1] ACPI: Using IOAPIC for interrupt routing [ 5.896482][ T1] PCI: Using host bridge windows from ACPI; if necessary, use "pci=nocrs" and report a bug [ 5.904341][ T1] ACPI: Enabled 16 GPEs in block 00 to 0F [ 6.094507][ T1] ACPI: PCI Root Bridge [PCI0] (domain 0000 [bus 00-ff]) [ 6.094507][ T1] acpi PNP0A03:00: _OSC: OS supports [ASPM ClockPM Segments MSI HPX-Type3] [ 6.097930][ T1] acpi PNP0A03:00: fail to add MMCONFIG information, can't access extended PCI configuration space under this bridge. [ 6.114525][ T1] PCI host bridge to bus 0000:00 [ 6.115518][ T1] pci_bus 0000:00: Unknown NUMA node; performance will be reduced [ 6.116278][ T1] pci_bus 0000:00: root bus resource [io 0x0000-0x0cf7 window] [ 6.124334][ T1] pci_bus 0000:00: root bus resource [io 0x0d00-0xffff window] [ 6.124334][ T1] pci_bus 0000:00: root bus resource [mem 0x000a0000-0x000bffff window] [ 6.124374][ T1] pci_bus 0000:00: root bus resource [mem 0xc0000000-0xfebfefff window] [ 6.127271][ T1] pci_bus 0000:00: root bus resource [bus 00-ff] [ 6.134455][ T1] pci 0000:00:00.0: [8086:1237] type 00 class 0x060000 [ 6.139712][ T1] pci 0000:00:01.0: [8086:7110] type 00 class 0x060100 [ 6.164424][ T1] pci 0000:00:01.3: [8086:7113] type 00 class 0x068000 [ 6.175763][ T1] pci 0000:00:01.3: quirk: [io 0xb000-0xb03f] claimed by PIIX4 ACPI [ 6.184695][ T1] pci 0000:00:03.0: [1af4:1004] type 00 class 0x000000 [ 6.195732][ T1] pci 0000:00:03.0: reg 0x10: [io 0xc000-0xc03f] [ 6.196824][ T1] pci 0000:00:03.0: reg 0x14: [mem 0xfebfc000-0xfebfc07f] [ 6.214853][ T1] pci 0000:00:04.0: [1af4:1000] type 00 class 0x020000 [ 6.224318][ T1] pci 0000:00:04.0: reg 0x10: [io 0xc040-0xc07f] [ 6.226801][ T1] pci 0000:00:04.0: reg 0x14: [mem 0xfebfd000-0xfebfd07f] [ 6.246514][ T1] pci 0000:00:05.0: [1af4:1005] type 00 class 0x00ff00 [ 6.255858][ T1] pci 0000:00:05.0: reg 0x10: [io 0xc080-0xc09f] [ 6.257549][ T1] pci 0000:00:05.0: reg 0x14: [mem 0xfebfe000-0xfebfe03f] [ 6.304346][ T1] ACPI: PCI Interrupt Link [LNKA] (IRQs 5 *10 11) [ 6.308768][ T1] ACPI: PCI Interrupt Link [LNKB] (IRQs 5 *10 11) [ 6.315675][ T1] ACPI: PCI Interrupt Link [LNKC] (IRQs 5 10 *11) [ 6.324339][ T1] ACPI: PCI Interrupt Link [LNKD] (IRQs 5 10 *11) [ 6.325486][ T1] ACPI: PCI Interrupt Link [LNKS] (IRQs *9) [ 6.350327][ T1] iommu: Default domain type: Translated [ 6.352966][ T1] vgaarb: loaded [ 6.366478][ T1] SCSI subsystem initialized [ 6.370982][ T1] ACPI: bus type USB registered [ 6.373138][ T1] usbcore: registered new interface driver usbfs [ 6.374688][ T1] usbcore: registered new interface driver hub [ 6.377221][ T1] usbcore: registered new device driver usb [ 6.381176][ T1] mc: Linux media interface: v0.10 [ 6.383266][ T1] videodev: Linux video capture interface: v2.00 [ 6.385448][ T1] pps_core: LinuxPPS API ver. 1 registered [ 6.387395][ T1] pps_core: Software ver. 5.3.6 - Copyright 2005-2007 Rodolfo Giometti [ 6.390841][ T1] PTP clock support registered [ 6.396772][ T1] EDAC MC: Ver: 3.0.0 [ 6.419713][ T1] Advanced Linux Sound Architecture Driver Initialized. [ 6.426308][ T1] Bluetooth: Core ver 2.22 [ 6.427870][ T1] NET: Registered protocol family 31 [ 6.434119][ T1] Bluetooth: HCI device and connection manager initialized [ 6.436860][ T1] Bluetooth: HCI socket layer initialized [ 6.438637][ T1] Bluetooth: L2CAP socket layer initialized [ 6.438791][ T1] Bluetooth: SCO socket layer initialized [ 6.438791][ T1] NET: Registered protocol family 8 [ 6.438791][ T1] NET: Registered protocol family 20 [ 6.444309][ T1] NetLabel: Initializing [ 6.447513][ T1] NetLabel: domain hash size = 128 [ 6.447513][ T1] NetLabel: protocols = UNLABELED CIPSOv4 CALIPSO [ 6.452106][ T1] NetLabel: unlabeled traffic allowed by default [ 6.456313][ T1] nfc: nfc_init: NFC Core ver 0.1 [ 6.458684][ T1] NET: Registered protocol family 39 [ 6.464335][ T1] PCI: Using ACPI for IRQ routing [ 6.475437][ T1] clocksource: Switched to clocksource kvm-clock [ 15.002230][ T1] VFS: Disk quotas dquot_6.6.0 [ 15.003937][ T1] VFS: Dquot-cache hash table entries: 512 (order 0, 4096 bytes) [ 15.007678][ T1] FS-Cache: Loaded [ 15.010258][ T1] CacheFiles: Loaded [ 15.012051][ T1] TOMOYO: 2.6.0 [ 15.013103][ T1] Mandatory Access Control activated. [ 15.017971][ T1] AppArmor: AppArmor Filesystem Enabled [ 15.020418][ T1] pnp: PnP ACPI init [ 15.051766][ T1] pnp: PnP ACPI: found 7 devices [ 15.182291][ T1] clocksource: acpi_pm: mask: 0xffffff max_cycles: 0xffffff, max_idle_ns: 2085701024 ns [ 15.194292][ T1] NET: Registered protocol family 2 [ 15.204535][ T1] tcp_listen_portaddr_hash hash table entries: 4096 (order: 4, 65536 bytes, vmalloc) [ 15.219704][ T1] TCP established hash table entries: 65536 (order: 7, 524288 bytes, vmalloc) [ 15.240165][ T1] TCP bind hash table entries: 65536 (order: 8, 1048576 bytes, vmalloc) [ 15.259373][ T1] TCP: Hash tables configured (established 65536 bind 65536) [ 15.268266][ T1] MPTCP token hash table entries: 8192 (order: 5, 196608 bytes, vmalloc) [ 15.278547][ T1] UDP hash table entries: 4096 (order: 5, 131072 bytes, vmalloc) [ 15.289221][ T1] UDP-Lite hash table entries: 4096 (order: 5, 131072 bytes, vmalloc) [ 15.299865][ T1] NET: Registered protocol family 1 [ 15.307518][ T1] RPC: Registered named UNIX socket transport module. [ 15.314488][ T1] RPC: Registered udp transport module. [ 15.320196][ T1] RPC: Registered tcp transport module. [ 15.325857][ T1] RPC: Registered tcp NFSv4.1 backchannel transport module. [ 15.337476][ T1] NET: Registered protocol family 44 [ 15.343008][ T1] pci_bus 0000:00: resource 4 [io 0x0000-0x0cf7 window] [ 15.350260][ T1] pci_bus 0000:00: resource 5 [io 0x0d00-0xffff window] [ 15.357433][ T1] pci_bus 0000:00: resource 6 [mem 0x000a0000-0x000bffff window] [ 15.365271][ T1] pci_bus 0000:00: resource 7 [mem 0xc0000000-0xfebfefff window] [ 15.374199][ T1] pci 0000:00:00.0: Limiting direct PCI/PCI transfers [ 15.381535][ T1] PCI: CLS 0 bytes, default 64 [ 15.395199][ T1] PCI-DMA: Using software bounce buffering for IO (SWIOTLB) [ 15.402537][ T1] software IO TLB: mapped [mem 0xbbffd000-0xbfffd000] (64MB) [ 15.420443][ T1] RAPL PMU: API unit is 2^-32 Joules, 0 fixed counters, 10737418240 ms ovfl timer [ 15.434234][ T1] kvm: already loaded the other module [ 15.439840][ T1] clocksource: tsc: mask: 0xffffffffffffffff max_cycles: 0x212735223b2, max_idle_ns: 440795277976 ns [ 15.450958][ T1] clocksource: Switched to clocksource tsc [ 15.457556][ T1] mce: Machine check injector initialized [ 15.471070][ T1] check: Scanning for low memory corruption every 60 seconds [ 15.518435][ T1] Initialise system trusted keyrings [ 15.527213][ T1] workingset: timestamp_bits=40 max_order=21 bucket_order=0 [ 15.581072][ T1] zbud: loaded [ 15.590729][ T1] DLM installed [ 15.600253][ T1] squashfs: version 4.0 (2009/01/31) Phillip Lougher [ 15.616536][ T1] FS-Cache: Netfs 'nfs' registered for caching [ 15.629780][ T1] NFS: Registering the id_resolver key type [ 15.636044][ T1] Key type id_resolver registered [ 15.641124][ T1] Key type id_legacy registered [ 15.646657][ T1] nfs4filelayout_init: NFSv4 File Layout Driver Registering... [ 15.654262][ T1] Installing knfsd (copyright (C) 1996 okir@monad.swb.de). [ 15.669804][ T1] FS-Cache: Netfs 'cifs' registered for caching [ 15.679255][ T1] Key type cifs.spnego registered [ 15.684530][ T1] Key type cifs.idmap registered [ 15.689593][ T1] ntfs: driver 2.1.32 [Flags: R/W]. [ 15.696639][ T1] fuse: init (API version 7.31) [ 15.707491][ T1] JFS: nTxBlock = 8192, nTxLock = 65536 [ 15.753666][ T1] SGI XFS with ACLs, security attributes, realtime, quota, no debug enabled [ 15.772008][ T1] 9p: Installing v9fs 9p2000 file system support [ 15.778856][ T1] FS-Cache: Netfs '9p' registered for caching [ 15.786231][ T1] ocfs2: Registered cluster interface o2cb [ 15.792753][ T1] ocfs2: Registered cluster interface user [ 15.799746][ T1] OCFS2 User DLM kernel interface loaded [ 15.815844][ T1] gfs2: GFS2 installed [ 15.838365][ T1] FS-Cache: Netfs 'ceph' registered for caching [ 15.844734][ T1] ceph: loaded (mds proto 32) [ 16.584623][ T1] NET: Registered protocol family 38 [ 16.590856][ T1] async_tx: api initialized (async) [ 16.596263][ T1] Key type asymmetric registered [ 16.601233][ T1] Asymmetric key parser 'x509' registered [ 16.607047][ T1] Asymmetric key parser 'pkcs8' registered [ 16.612887][ T1] Key type pkcs7_test registered [ 16.617946][ T1] Asymmetric key parser 'tpm_parser' registered [ 16.624556][ T1] Block layer SCSI generic (bsg) driver version 0.4 loaded (major 241) [ 16.633782][ T1] io scheduler mq-deadline registered [ 16.639292][ T1] io scheduler kyber registered [ 16.645234][ T1] io scheduler bfq registered [ 16.704724][ T1] hgafb: HGA card not detected. [ 16.710376][ T1] hgafb: probe of hgafb.0 failed with error -22 [ 16.717945][ T1] usbcore: registered new interface driver udlfb [ 16.724917][ T1] usbcore: registered new interface driver smscufx [ 16.734681][ T12] ===================================================== [ 16.741628][ T12] BUG: KMSAN: use-after-free in __fput+0x42b/0xf20 [ 16.744433][ T12] CPU: 0 PID: 12 Comm: kworker/0:1 Not tainted 5.9.0-rc4-syzkaller #0 [ 16.744433][ T12] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 16.744433][ T12] Workqueue: events delayed_fput [ 16.744433][ T12] Call Trace: [ 16.744433][ T12] dump_stack+0x21c/0x280 [ 16.744433][ T12] kmsan_report+0xf7/0x1e0 [ 16.744433][ T12] __msan_warning+0x58/0xa0 [ 16.744433][ T12] __fput+0x42b/0xf20 [ 16.744433][ T12] ? kmsan_get_metadata+0x116/0x180 [ 16.744433][ T12] ? kmsan_set_origin_checked+0x95/0xf0 [ 16.744433][ T12] delayed_fput+0x7a/0xe0 [ 16.744433][ T12] ? flush_delayed_fput+0xe0/0xe0 [ 16.744433][ T12] process_one_work+0x1688/0x2140 [ 16.744433][ T12] worker_thread+0x10bc/0x2730 [ 16.744433][ T12] ? kmsan_get_metadata+0x116/0x180 [ 16.744433][ T12] ? kmsan_get_metadata+0x116/0x180 [ 16.744433][ T12] kthread+0x551/0x590 [ 16.744433][ T12] ? process_one_work+0x2140/0x2140 [ 16.744433][ T12] ? kthread_blkcg+0x110/0x110 [ 16.744433][ T12] ret_from_fork+0x1f/0x30 [ 16.744433][ T12] [ 16.744433][ T12] Uninit was created at: [ 16.744433][ T12] kmsan_internal_poison_shadow+0x66/0xd0 [ 16.744433][ T12] kmsan_slab_free+0x6e/0xb0 [ 16.744433][ T12] kmem_cache_free+0x2f7/0xd50 [ 16.744433][ T12] file_free_rcu+0x15d/0x190 [ 16.744433][ T12] rcu_core+0xf35/0x1e90 [ 16.744433][ T12] rcu_core_si+0xe/0x10 [ 16.744433][ T12] __do_softirq+0x2ea/0x7f5 [ 16.744433][ T12] ===================================================== [ 16.744433][ T12] Disabling lock debugging due to kernel taint [ 16.744433][ T12] Kernel panic - not syncing: panic_on_warn set ... [ 16.754365][ C1] ===================================================== [ 16.754365][ C1] BUG: KMSAN: use-after-free in rcu_cblist_dequeue+0x201/0x240 [ 16.744433][ T12] CPU: 0 PID: 12 Comm: kworker/0:1 Tainted: G B 5.9.0-rc4-syzkaller #0 [ 16.744433][ T12] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 16.744433][ T12] Workqueue: events delayed_fput [ 16.744433][ T12] Call Trace: [ 16.744433][ T12] dump_stack+0x21c/0x280 [ 16.744433][ T12] panic+0x4d7/0xef7 [ 16.744433][ T12] ? add_taint+0x17c/0x210 [ 16.744433][ T12] kmsan_report+0x1df/0x1e0 [ 16.744433][ T12] __msan_warning+0x58/0xa0 [ 16.744433][ T12] __fput+0x42b/0xf20 [ 16.744433][ T12] ? kmsan_get_metadata+0x116/0x180 [ 16.744433][ T12] ? kmsan_set_origin_checked+0x95/0xf0 [ 16.744433][ T12] delayed_fput+0x7a/0xe0 [ 16.744433][ T12] ? flush_delayed_fput+0xe0/0xe0 [ 16.744433][ T12] process_one_work+0x1688/0x2140 [ 16.744433][ T12] worker_thread+0x10bc/0x2730 [ 16.744433][ T12] ? kmsan_get_metadata+0x116/0x180 [ 16.744433][ T12] ? kmsan_get_metadata+0x116/0x180 [ 16.744433][ T12] kthread+0x551/0x590 [ 16.744433][ T12] ? process_one_work+0x2140/0x2140 [ 16.744433][ T12] ? kthread_blkcg+0x110/0x110 [ 16.744433][ T12] ret_from_fork+0x1f/0x30 [ 16.754365][ C1] CPU: 1 PID: 0 Comm: swapper/1 Tainted: G B 5.9.0-rc4-syzkaller #0 [ 16.754365][ C1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 16.754365][ C1] Call Trace: [ 16.754365][ C1] [ 16.754365][ C1] dump_stack+0x21c/0x280 [ 16.754365][ C1] kmsan_report+0xf7/0x1e0 [ 16.754365][ C1] __msan_warning+0x58/0xa0 [ 16.754365][ C1] rcu_cblist_dequeue+0x201/0x240 [ 16.754365][ C1] ? __put_cred+0x240/0x240 [ 16.754365][ C1] rcu_core+0x1043/0x1e90 [ 16.754365][ C1] ? rcu_scheduler_starting+0xc0/0xc0 [ 16.754365][ C1] rcu_core_si+0xe/0x10 [ 16.754365][ C1] __do_softirq+0x2ea/0x7f5 [ 16.754365][ C1] asm_call_on_stack+0xf/0x20 [ 16.754365][ C1] [ 16.754365][ C1] do_softirq_own_stack+0x7c/0xa0 [ 16.754365][ C1] __irq_exit_rcu+0x226/0x270 [ 16.754365][ C1] irq_exit_rcu+0xe/0x10 [ 16.754365][ C1] sysvec_apic_timer_interrupt+0x118/0x140 [ 16.754365][ C1] asm_sysvec_apic_timer_interrupt+0x12/0x20 [ 16.754365][ C1] RIP: 0010:default_idle+0x17/0x20 [ 16.754365][ C1] Code: c3 e8 cd a1 fb ff cc cc cc cc cc cc cc cc cc cc cc cc cc 55 48 89 e5 e8 47 cb 3a f1 e9 07 00 00 00 0f 00 2d c3 77 44 00 fb f4 <5d> c3 0f 1f 80 00 00 00 00 55 48 89 e5 41 57 41 56 53 e8 22 cb 3a [ 16.754365][ C1] RSP: 0000:ffff88812df93e18 EFLAGS: 00000286 [ 16.754365][ C1] RAX: ffff88812df889f0 RBX: ffffffff90fdefa0 RCX: 0000000000000000 [ 16.754365][ C1] RDX: 0000000000000000 RSI: 0000000000000040 RDI: ffffffff92fa7750 [ 16.754365][ C1] RBP: ffff88812df93e18 R08: ffffea000000000f R09: ffff88812fffa000 [ 16.754365][ C1] R10: 0000000000000004 R11: 00000003e60ae01d R12: 0000000000000001 [ 16.754365][ C1] R13: 0000000000000000 R14: 0000000000000000 R15: ffff88812df889f0 [ 16.754365][ C1] ? __cpuidle_text_start+0x8/0x8 [ 16.754365][ C1] ? default_idle+0x9/0x20 [ 16.754365][ C1] arch_cpu_idle+0x1f/0x30 [ 16.754365][ C1] default_idle_call+0x19a/0x2e0 [ 16.754365][ C1] do_idle+0x218/0x790 [ 16.754365][ C1] cpu_startup_entry+0x45/0x50 [ 16.754365][ C1] ? setup_APIC_timer+0x210/0x210 [ 16.754365][ C1] start_secondary+0xd6/0xe0 [ 16.754365][ C1] secondary_startup_64+0xa4/0xb0 [ 16.754365][ C1] [ 16.754365][ C1] Uninit was created at: [ 16.754365][ C1] kmsan_internal_poison_shadow+0x66/0xd0 [ 16.754365][ C1] kmsan_slab_free+0x6e/0xb0 [ 16.754365][ C1] kmem_cache_free+0x2f7/0xd50 [ 16.754365][ C1] __d_free+0x65/0x70 [ 16.754365][ C1] rcu_core+0xf35/0x1e90 [ 16.754365][ C1] rcu_core_si+0xe/0x10 [ 16.754365][ C1] __do_softirq+0x2ea/0x7f5 [ 16.754365][ C1] ===================================================== [ 16.744433][ T12] Shutting down cpus with NMI [ 16.744433][ T12] Kernel Offset: disabled [ 16.744433][ T12] Rebooting in 86400 seconds..