[ 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=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: 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 [ 0.000012][ T0] kvm-clock: cpu 0, msr 131ba001, primary cpu clock [ 0.000013][ T0] kvm-clock: using sched offset of 5378526043 cycles [ 0.001187][ T0] clocksource: kvm-clock: mask: 0xffffffffffffffff max_cycles: 0x1cd42e4dffb, max_idle_ns: 881590591483 ns [ 0.004460][ T0] tsc: Detected 2300.000 MHz processor [ 0.014561][ T0] last_pfn = 0x220000 max_arch_pfn = 0x400000000 [ 0.016370][ T0] x86/PAT: Configuration [0-7]: WB WC UC- UC WB WP UC- WT [ 0.017949][ T0] last_pfn = 0xbfffd max_arch_pfn = 0x400000000 [ 0.036989][ T0] found SMP MP-table at [mem 0x000f24f0-0x000f24ff] [ 0.038233][ T0] check: Scanning 1 areas for low memory corruption [ 0.039424][ T0] Using GB pages for direct mapping [ 0.045439][ T0] ACPI: Early table checksum verification disabled [ 0.047397][ T0] ACPI: RSDP 0x00000000000F2270 000014 (v00 Google) [ 0.048705][ T0] ACPI: RSDT 0x00000000BFFFFFC0 000038 (v01 Google GOOGRSDT 00000001 GOOG 00000001) [ 0.050951][ T0] ACPI: FACP 0x00000000BFFFF380 0000F4 (v02 Google GOOGFACP 00000001 GOOG 00000001) [ 0.052981][ T0] ACPI: DSDT 0x00000000BFFFDAC0 0018BA (v01 Google GOOGDSDT 00000001 GOOG 00000001) [ 0.054849][ T0] ACPI: FACS 0x00000000BFFFDA80 000040 [ 0.056223][ T0] ACPI: FACS 0x00000000BFFFDA80 000040 [ 0.057839][ T0] ACPI: SRAT 0x00000000BFFFFEB0 0000C8 (v03 Google GOOGSRAT 00000001 GOOG 00000001) [ 0.060578][ T0] ACPI: APIC 0x00000000BFFFFE00 000076 (v05 Google GOOGAPIC 00000001 GOOG 00000001) [ 0.062818][ T0] ACPI: SSDT 0x00000000BFFFF480 000980 (v01 Google GOOGSSDT 00000001 GOOG 00000001) [ 0.065093][ T0] ACPI: WAET 0x00000000BFFFFE80 000028 (v01 Google GOOGWAET 00000001 GOOG 00000001) [ 0.067245][ T0] SRAT: PXM 0 -> APIC 0x00 -> Node 0 [ 0.068301][ T0] SRAT: PXM 0 -> APIC 0x01 -> Node 0 [ 0.069600][ T0] ACPI: SRAT: Node 0 PXM 0 [mem 0x00000000-0x0009ffff] [ 0.071277][ T0] ACPI: SRAT: Node 0 PXM 0 [mem 0x00100000-0xbfffffff] [ 0.073180][ T0] ACPI: SRAT: Node 0 PXM 0 [mem 0x100000000-0x21fffffff] [ 0.074510][ T0] NUMA: Node 0 [mem 0x00000000-0x0009ffff] + [mem 0x00100000-0xbfffffff] -> [mem 0x00000000-0xbfffffff] [ 0.077333][ T0] NUMA: Node 0 [mem 0x00000000-0xbfffffff] + [mem 0x100000000-0x21fffffff] -> [mem 0x00000000-0x21fffffff] [ 0.080956][ T0] Faking node 0 at [mem 0x0000000000000000-0x000000012fffffff] (4864MB) [ 0.083096][ T0] Faking node 1 at [mem 0x0000000130000000-0x000000021fffffff] (3840MB) [ 0.085676][ T0] NODE_DATA(0) allocated [mem 0x12fffb000-0x12fffffff] [ 0.088756][ T0] NODE_DATA(1) allocated [mem 0x21fff8000-0x21fffcfff] [ 0.090693][ T0] Zone ranges: [ 0.091616][ T0] DMA [mem 0x0000000000001000-0x0000000000ffffff] [ 0.093169][ T0] DMA32 [mem 0x0000000001000000-0x00000000ffffffff] [ 0.095056][ T0] Normal [mem 0x0000000100000000-0x000000021fffffff] [ 0.096498][ T0] Device empty [ 0.097114][ T0] Movable zone start for each node [ 0.098252][ T0] Early memory node ranges [ 0.099299][ T0] node 0: [mem 0x0000000000001000-0x000000000009efff] [ 0.100718][ T0] node 0: [mem 0x0000000000100000-0x00000000bfffcfff] [ 0.101933][ T0] node 0: [mem 0x0000000100000000-0x000000012fffffff] [ 0.103380][ T0] node 1: [mem 0x0000000130000000-0x000000021fffffff] [ 0.106388][ T0] Zeroed struct page in unavailable ranges: 101 pages [ 0.106407][ T0] Initmem setup node 0 [mem 0x0000000000001000-0x000000012fffffff] [ 0.385344][ T0] Initmem setup node 1 [mem 0x0000000130000000-0x000000021fffffff] [ 0.666246][ T0] ACPI: PM-Timer IO Port: 0xb008 [ 0.667806][ T0] ACPI: LAPIC_NMI (acpi_id[0xff] dfl dfl lint[0x1]) [ 0.670172][ T0] IOAPIC[0]: apic_id 0, version 17, address 0xfec00000, GSI 0-23 [ 0.671853][ T0] ACPI: INT_SRC_OVR (bus 0 bus_irq 5 global_irq 5 high level) [ 0.673405][ T0] ACPI: INT_SRC_OVR (bus 0 bus_irq 9 global_irq 9 high level) [ 0.675308][ T0] ACPI: INT_SRC_OVR (bus 0 bus_irq 10 global_irq 10 high level) [ 0.677667][ T0] ACPI: INT_SRC_OVR (bus 0 bus_irq 11 global_irq 11 high level) [ 0.680063][ T0] Using ACPI (MADT) for SMP configuration information [ 0.682002][ T0] smpboot: Allowing 2 CPUs, 0 hotplug CPUs [ 0.683649][ T0] PM: hibernation: Registered nosave memory: [mem 0x00000000-0x00000fff] [ 0.685312][ T0] PM: hibernation: Registered nosave memory: [mem 0x0009f000-0x0009ffff] [ 0.687148][ T0] PM: hibernation: Registered nosave memory: [mem 0x000a0000-0x000effff] [ 0.691115][ T0] PM: hibernation: Registered nosave memory: [mem 0x000f0000-0x000fffff] [ 0.693668][ T0] PM: hibernation: Registered nosave memory: [mem 0xbfffd000-0xbfffffff] [ 0.696382][ T0] PM: hibernation: Registered nosave memory: [mem 0xc0000000-0xfffbbfff] [ 0.699331][ T0] PM: hibernation: Registered nosave memory: [mem 0xfffbc000-0xffffffff] [ 0.700919][ T0] [mem 0xc0000000-0xfffbbfff] available for PCI devices [ 0.702476][ T0] Booting paravirtualized kernel on KVM [ 0.704451][ T0] clocksource: refined-jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604462750000 ns [ 0.707056][ T0] setup_percpu: NR_CPUS:64 nr_cpumask_bits:64 nr_cpu_ids:2 nr_node_ids:2 [ 0.710058][ T0] percpu: Embedded 159 pages/cpu s612616 r8192 d30456 u1048576 [ 0.713123][ T0] Built 2 zonelists, mobility grouping on. Total pages: 1927557 [ 0.715878][ T0] Policy zone: Normal [ 0.716749][ 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 [ 0.737853][ T0] mem auto-init: stack:off, heap alloc:on, heap free:off [ 1.221774][ T0] Memory: 2121664K/7863916K available (266247K kernel code, 9288K rwdata, 14188K rodata, 4188K init, 10628K bss, 1472460K reserved, 0K cma-reserved) [ 1.228100][ T0] SLUB: HWalign=64, Order=0-3, MinObjects=0, CPUs=2, Nodes=2 [ 1.229390][ T0] vmalloc area at: ffffc90000000000 [ 1.230582][ T0] vmalloc shadow at: ffffd10000000000 [ 1.231762][ T0] Starting KernelMemorySanitizer [ 1.237090][ T0] rcu: Hierarchical RCU implementation. [ 1.238270][ T0] rcu: RCU restricting CPUs from NR_CPUS=64 to nr_cpu_ids=2. [ 1.239724][ T0] rcu: RCU debug extended QS entry/exit. [ 1.240986][ T0] All grace periods are expedited (rcu_expedited). [ 1.242220][ T0] rcu: RCU calculated value of scheduler-enlistment delay is 10 jiffies. [ 1.243742][ T0] rcu: Adjusting geometry for rcu_fanout_leaf=16, nr_cpu_ids=2 [ 1.270561][ T0] NR_IRQS: 4352, nr_irqs: 440, preallocated irqs: 16 [ 1.275319][ T0] random: get_random_bytes called from start_kernel+0x4f7/0xbdf with crng_init=0 [ 1.276541][ T0] Console: colour VGA+ 80x25 [ 1.280096][ T0] printk: console [ttyS0] enabled [ 1.280096][ T0] printk: console [ttyS0] enabled [ 1.281785][ T0] printk: bootconsole [earlyser0] disabled [ 1.281785][ T0] printk: bootconsole [earlyser0] disabled [ 1.284312][ T0] mempolicy: Enabling automatic NUMA balancing. Configure with numa_balancing= or the kernel.numa_balancing sysctl [ 1.286920][ T0] ACPI: Core revision 20200717 [ 1.289767][ T0] APIC: Switch to symmetric I/O mode setup [ 1.291617][ T0] x2apic enabled [ 1.293520][ T0] Switched APIC routing to physical x2apic. [ 1.298394][ T0] ..TIMER: vector=0x30 apic1=0 pin1=0 apic2=-1 pin2=-1 [ 1.300151][ T0] clocksource: tsc-early: mask: 0xffffffffffffffff max_cycles: 0x212735223b2, max_idle_ns: 440795277976 ns [ 1.303561][ T0] Calibrating delay loop (skipped) preset value.. 4600.00 BogoMIPS (lpj=23000000) [ 1.305459][ T0] pid_max: default: 32768 minimum: 301 [ 1.307684][ T0] LSM: Security Framework initializing [ 1.309193][ T0] LSM: security= is ignored because it is superseded by lsm= [ 1.313874][ T0] Yama: becoming mindful. [ 1.315325][ T0] SELinux: Initializing. [ 1.316878][ T0] TOMOYO Linux initialized [ 1.345038][ T0] Dentry cache hash table entries: 1048576 (order: 11, 8388608 bytes, vmalloc) [ 1.359982][ T0] Inode-cache hash table entries: 524288 (order: 10, 4194304 bytes, vmalloc) [ 1.362444][ T0] Mount-cache hash table entries: 16384 (order: 5, 131072 bytes, vmalloc) [ 1.364052][ T0] Mountpoint-cache hash table entries: 16384 (order: 5, 131072 bytes, vmalloc) [ 1.377647][ T0] Last level iTLB entries: 4KB 1024, 2MB 1024, 4MB 1024 [ 1.380668][ T0] Last level dTLB entries: 4KB 1024, 2MB 1024, 4MB 1024, 1GB 4 [ 1.382313][ T0] Spectre V1 : Mitigation: usercopy/swapgs barriers and __user pointer sanitization [ 1.383685][ T0] Spectre V2 : Spectre mitigation: kernel not compiled with retpoline; no mitigation available! [ 1.383800][ T0] Speculative Store Bypass: Mitigation: Speculative Store Bypass disabled via prctl [ 1.388881][ T0] MDS: Mitigation: Clear CPU buffers [ 1.393576][ T0] Freeing SMP alternatives memory: 136K [ 1.515999][ T1] smpboot: CPU0: Intel(R) Xeon(R) CPU @ 2.30GHz (family: 0x6, model: 0x3f, stepping: 0x0) [ 1.520856][ T1] Performance Events: unsupported p6 CPU model 63 no PMU driver, software events only. [ 1.523535][ T1] rcu: Hierarchical SRCU implementation. [ 1.523535][ T1] dyndbg: Ignore empty _ddebug table in a CONFIG_DYNAMIC_DEBUG_CORE build [ 1.523704][ T1] NMI watchdog: Perf NMI watchdog permanently disabled [ 1.527085][ T1] smp: Bringing up secondary CPUs ... [ 1.530674][ T1] x86: Booting SMP configuration: [ 1.531940][ T1] .... node #0, CPUs: #1 [ 0.039467][ T0] kvm-clock: cpu 1, msr 131ba041, secondary cpu clock [ 1.535032][ 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. [ 1.538146][ T1] smp: Brought up 2 nodes, 2 CPUs [ 1.539492][ T1] smpboot: Max logical packages: 1 [ 1.540526][ T1] smpboot: Total of 2 processors activated (9200.00 BogoMIPS) [ 1.548096][ T1] devtmpfs: initialized [ 1.548096][ T1] x86/mm: Memory block size: 128MB [ 1.606715][ T1] clocksource: jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604462750000 ns [ 1.609570][ T22] kworker/u4:0 (22) used greatest stack depth: 9872 bytes left [ 1.612813][ T1] futex hash table entries: 512 (order: 3, 32768 bytes, vmalloc) [ 1.614812][ T1] xor: automatically using best checksumming function avx [ 1.618905][ T1] PM: RTC time: 16:03:13, date: 2020-09-25 [ 1.624573][ T1] NET: Registered protocol family 16 [ 1.637231][ T1] audit: initializing netlink subsys (disabled) [ 1.639060][ T27] audit: type=2000 audit(1601049793.875:1): state=initialized audit_enabled=0 res=1 [ 1.645944][ T1] thermal_sys: Registered thermal governor 'step_wise' [ 1.645944][ T1] thermal_sys: Registered thermal governor 'user_space' [ 1.652879][ T1] cpuidle: using governor menu [ 1.654974][ T1] NET: Registered protocol family 42 [ 1.674787][ T1] ACPI: bus type PCI registered [ 1.679609][ T1] dca service started, version 1.12.1 [ 1.680940][ T1] PCI: Using configuration type 1 for base access [ 3.968147][ T1] WARNING: workqueue cpumask: online intersect > possible intersect [ 3.977999][ T1] HugeTLB registered 1.00 GiB page size, pre-allocated 0 pages [ 3.980014][ T1] HugeTLB registered 2.00 MiB page size, pre-allocated 0 pages [ 4.050893][ T1] cryptd: max_cpu_qlen set to 1000 [ 4.313611][ T1] raid6: avx2x4 gen() 257 MB/s [ 4.482139][ T1] raid6: avx2x4 xor() 247 MB/s [ 4.653611][ T1] raid6: avx2x2 gen() 261 MB/s [ 4.822114][ T1] raid6: avx2x2 xor() 278 MB/s [ 4.993619][ T1] raid6: avx2x1 gen() 253 MB/s [ 5.162104][ T1] raid6: avx2x1 xor() 270 MB/s [ 5.333612][ T1] raid6: sse2x4 gen() 160 MB/s [ 5.502157][ T1] raid6: sse2x4 xor() 123 MB/s [ 5.672064][ T1] raid6: sse2x2 gen() 159 MB/s [ 5.842189][ T1] raid6: sse2x2 xor() 138 MB/s [ 6.013610][ T1] raid6: sse2x1 gen() 130 MB/s [ 6.182155][ T1] raid6: sse2x1 xor() 136 MB/s [ 6.183797][ T1] raid6: using algorithm avx2x2 gen() 261 MB/s [ 6.183797][ T1] raid6: .... xor() 278 MB/s, rmw enabled [ 6.184558][ T1] raid6: using avx2x2 recovery algorithm [ 6.187290][ T1] ACPI: Added _OSI(Module Device) [ 6.188387][ T1] ACPI: Added _OSI(Processor Device) [ 6.189865][ T1] ACPI: Added _OSI(3.0 _SCP Extensions) [ 6.193932][ T1] ACPI: Added _OSI(Processor Aggregator Device) [ 6.193932][ T1] ACPI: Added _OSI(Linux-Dell-Video) [ 6.194926][ T1] ACPI: Added _OSI(Linux-Lenovo-NV-HDMI-Audio) [ 6.196420][ T1] ACPI: Added _OSI(Linux-HPI-Hybrid-Graphics) [ 6.375928][ T1] ACPI: 2 ACPI AML tables successfully acquired and loaded [ 6.415448][ T1] ACPI: Interpreter enabled [ 6.417140][ T1] ACPI: (supports S0 S3 S4 S5) [ 6.418312][ T1] ACPI: Using IOAPIC for interrupt routing [ 6.420167][ T1] PCI: Using host bridge windows from ACPI; if necessary, use "pci=nocrs" and report a bug [ 6.428640][ T1] ACPI: Enabled 16 GPEs in block 00 to 0F [ 6.696555][ T1] ACPI: PCI Root Bridge [PCI0] (domain 0000 [bus 00-ff]) [ 6.698497][ T1] acpi PNP0A03:00: _OSC: OS supports [ASPM ClockPM Segments MSI HPX-Type3] [ 6.701078][ T1] acpi PNP0A03:00: fail to add MMCONFIG information, can't access extended PCI configuration space under this bridge. [ 6.722255][ T1] PCI host bridge to bus 0000:00 [ 6.723497][ T1] pci_bus 0000:00: Unknown NUMA node; performance will be reduced [ 6.725097][ T1] pci_bus 0000:00: root bus resource [io 0x0000-0x0cf7 window] [ 6.725323][ T1] pci_bus 0000:00: root bus resource [io 0x0d00-0xffff window] [ 6.727436][ T1] pci_bus 0000:00: root bus resource [mem 0x000a0000-0x000bffff window] [ 6.729218][ T1] pci_bus 0000:00: root bus resource [mem 0xc0000000-0xfebfefff window] [ 6.733615][ T1] pci_bus 0000:00: root bus resource [bus 00-ff] [ 6.734148][ T1] pci 0000:00:00.0: [8086:1237] type 00 class 0x060000 [ 6.746395][ T1] pci 0000:00:01.0: [8086:7110] type 00 class 0x060100 [ 6.771602][ T1] pci 0000:00:01.3: [8086:7113] type 00 class 0x068000 [ 6.788014][ T1] pci 0000:00:01.3: quirk: [io 0xb000-0xb03f] claimed by PIIX4 ACPI [ 6.797585][ T1] pci 0000:00:03.0: [1af4:1004] type 00 class 0x000000 [ 6.806172][ T1] pci 0000:00:03.0: reg 0x10: [io 0xc000-0xc03f] [ 6.811731][ T1] pci 0000:00:03.0: reg 0x14: [mem 0xfebfc000-0xfebfc07f] [ 6.836502][ T1] pci 0000:00:04.0: [1af4:1000] type 00 class 0x020000 [ 6.846350][ T1] pci 0000:00:04.0: reg 0x10: [io 0xc040-0xc07f] [ 6.853679][ T1] pci 0000:00:04.0: reg 0x14: [mem 0xfebfd000-0xfebfd07f] [ 6.877902][ T1] pci 0000:00:05.0: [1af4:1005] type 00 class 0x00ff00 [ 6.886861][ T1] pci 0000:00:05.0: reg 0x10: [io 0xc080-0xc09f] [ 6.892720][ T1] pci 0000:00:05.0: reg 0x14: [mem 0xfebfe000-0xfebfe03f] [ 6.953609][ T1] ACPI: PCI Interrupt Link [LNKA] (IRQs 5 *10 11) [ 6.963953][ T1] ACPI: PCI Interrupt Link [LNKB] (IRQs 5 *10 11) [ 6.973607][ T1] ACPI: PCI Interrupt Link [LNKC] (IRQs 5 10 *11) [ 6.980923][ T1] ACPI: PCI Interrupt Link [LNKD] (IRQs 5 10 *11) [ 6.986825][ T1] ACPI: PCI Interrupt Link [LNKS] (IRQs *9) [ 7.022964][ T1] iommu: Default domain type: Translated [ 7.027428][ T1] vgaarb: loaded [ 7.040777][ T1] SCSI subsystem initialized [ 7.058696][ T1] ACPI: bus type USB registered [ 7.062211][ T1] usbcore: registered new interface driver usbfs [ 7.064473][ T1] usbcore: registered new interface driver hub [ 7.066967][ T1] usbcore: registered new device driver usb [ 7.070927][ T1] mc: Linux media interface: v0.10 [ 7.072441][ T1] videodev: Linux video capture interface: v2.00 [ 7.075484][ T1] pps_core: LinuxPPS API ver. 1 registered [ 7.076633][ T1] pps_core: Software ver. 5.3.6 - Copyright 2005-2007 Rodolfo Giometti [ 7.079278][ T1] PTP clock support registered [ 7.099636][ T1] EDAC MC: Ver: 3.0.0 [ 7.108771][ T1] Advanced Linux Sound Architecture Driver Initialized. [ 7.118372][ T1] Bluetooth: Core ver 2.22 [ 7.119984][ T1] NET: Registered protocol family 31 [ 7.121430][ T1] Bluetooth: HCI device and connection manager initialized [ 7.123311][ T1] Bluetooth: HCI socket layer initialized [ 7.123688][ T1] Bluetooth: L2CAP socket layer initialized [ 7.126787][ T1] Bluetooth: SCO socket layer initialized [ 7.126996][ T1] NET: Registered protocol family 8 [ 7.128736][ T1] NET: Registered protocol family 20 [ 7.132222][ T1] NetLabel: Initializing [ 7.132904][ T1] NetLabel: domain hash size = 128 [ 7.134626][ T1] NetLabel: protocols = UNLABELED CIPSOv4 CALIPSO [ 7.137863][ T1] NetLabel: unlabeled traffic allowed by default [ 7.144318][ T1] nfc: nfc_init: NFC Core ver 0.1 [ 7.146720][ T1] NET: Registered protocol family 39 [ 7.148522][ T1] PCI: Using ACPI for IRQ routing [ 7.167838][ T1] clocksource: Switched to clocksource kvm-clock [ 16.525912][ T1] VFS: Disk quotas dquot_6.6.0 [ 16.527879][ T1] VFS: Dquot-cache hash table entries: 512 (order 0, 4096 bytes) [ 16.530691][ T1] FS-Cache: Loaded [ 16.533227][ T1] CacheFiles: Loaded [ 16.536297][ T1] TOMOYO: 2.6.0 [ 16.537158][ T1] Mandatory Access Control activated. [ 16.539938][ T1] pnp: PnP ACPI init [ 16.580163][ T1] pnp: PnP ACPI: found 7 devices [ 16.739969][ T1] clocksource: acpi_pm: mask: 0xffffff max_cycles: 0xffffff, max_idle_ns: 2085701024 ns [ 16.752081][ T1] NET: Registered protocol family 2 [ 16.764399][ T1] tcp_listen_portaddr_hash hash table entries: 4096 (order: 4, 65536 bytes, vmalloc) [ 16.779847][ T1] TCP established hash table entries: 65536 (order: 7, 524288 bytes, vmalloc) [ 16.803243][ T1] TCP bind hash table entries: 65536 (order: 8, 1048576 bytes, vmalloc) [ 16.823517][ T1] TCP: Hash tables configured (established 65536 bind 65536) [ 16.833226][ T1] MPTCP token hash table entries: 8192 (order: 5, 196608 bytes, vmalloc) [ 16.844577][ T1] UDP hash table entries: 4096 (order: 5, 131072 bytes, vmalloc) [ 16.855666][ T1] UDP-Lite hash table entries: 4096 (order: 5, 131072 bytes, vmalloc) [ 16.866805][ T1] NET: Registered protocol family 1 [ 16.875818][ T1] RPC: Registered named UNIX socket transport module. [ 16.882694][ T1] RPC: Registered udp transport module. [ 16.889016][ T1] RPC: Registered tcp transport module. [ 16.894732][ T1] RPC: Registered tcp NFSv4.1 backchannel transport module. [ 16.906702][ T1] NET: Registered protocol family 44 [ 16.912272][ T1] pci_bus 0000:00: resource 4 [io 0x0000-0x0cf7 window] [ 16.919629][ T1] pci_bus 0000:00: resource 5 [io 0x0d00-0xffff window] [ 16.926871][ T1] pci_bus 0000:00: resource 6 [mem 0x000a0000-0x000bffff window] [ 16.934830][ T1] pci_bus 0000:00: resource 7 [mem 0xc0000000-0xfebfefff window] [ 16.944504][ T1] pci 0000:00:00.0: Limiting direct PCI/PCI transfers [ 16.951880][ T1] PCI: CLS 0 bytes, default 64 [ 16.967957][ T1] PCI-DMA: Using software bounce buffering for IO (SWIOTLB) [ 16.975404][ T1] software IO TLB: mapped [mem 0xbbffd000-0xbfffd000] (64MB) [ 16.993879][ T1] RAPL PMU: API unit is 2^-32 Joules, 0 fixed counters, 10737418240 ms ovfl timer [ 17.009158][ T1] kvm: already loaded the other module [ 17.014886][ T1] clocksource: tsc: mask: 0xffffffffffffffff max_cycles: 0x212735223b2, max_idle_ns: 440795277976 ns [ 17.026241][ T1] clocksource: Switched to clocksource tsc [ 17.032670][ T1] mce: Machine check injector initialized [ 17.047651][ T1] check: Scanning for low memory corruption every 60 seconds [ 17.111423][ T1] Initialise system trusted keyrings [ 17.119062][ T1] workingset: timestamp_bits=40 max_order=21 bucket_order=0 [ 17.184393][ T1] zbud: loaded [ 17.196916][ T1] DLM installed [ 17.210298][ T1] squashfs: version 4.0 (2009/01/31) Phillip Lougher [ 17.226444][ T1] FS-Cache: Netfs 'nfs' registered for caching [ 17.237529][ T1] NFS: Registering the id_resolver key type [ 17.244514][ T1] Key type id_resolver registered [ 17.249679][ T1] Key type id_legacy registered [ 17.255529][ T1] nfs4filelayout_init: NFSv4 File Layout Driver Registering... [ 17.263169][ T1] Installing knfsd (copyright (C) 1996 okir@monad.swb.de). [ 17.282025][ T1] FS-Cache: Netfs 'cifs' registered for caching [ 17.292415][ T1] Key type cifs.spnego registered [ 17.297672][ T1] Key type cifs.idmap registered [ 17.302703][ T1] ntfs: driver 2.1.32 [Flags: R/W]. [ 17.310208][ T1] fuse: init (API version 7.31) [ 17.321184][ T1] JFS: nTxBlock = 8192, nTxLock = 65536 [ 17.380496][ T1] SGI XFS with ACLs, security attributes, realtime, quota, no debug enabled [ 17.400827][ T1] 9p: Installing v9fs 9p2000 file system support [ 17.408082][ T1] FS-Cache: Netfs '9p' registered for caching [ 17.415998][ T1] ocfs2: Registered cluster interface o2cb [ 17.422801][ T1] ocfs2: Registered cluster interface user [ 17.431544][ T1] OCFS2 User DLM kernel interface loaded [ 17.450164][ T1] gfs2: GFS2 installed [ 17.480448][ T1] FS-Cache: Netfs 'ceph' registered for caching [ 17.486952][ T1] ceph: loaded (mds proto 32) [ 18.334494][ T1] NET: Registered protocol family 38 [ 18.341009][ T1] async_tx: api initialized (async) [ 18.346451][ T1] Key type asymmetric registered [ 18.351452][ T1] Asymmetric key parser 'x509' registered [ 18.357378][ T1] Asymmetric key parser 'pkcs8' registered [ 18.363264][ T1] Key type pkcs7_test registered [ 18.368396][ T1] Asymmetric key parser 'tpm_parser' registered [ 18.375001][ T1] Block layer SCSI generic (bsg) driver version 0.4 loaded (major 241) [ 18.384488][ T1] io scheduler mq-deadline registered [ 18.389948][ T1] io scheduler kyber registered [ 18.396056][ T1] io scheduler bfq registered [ 18.459925][ T1] hgafb: HGA card not detected. [ 18.469014][ T1] hgafb: probe of hgafb.0 failed with error -22 [ 18.473845][ T26] ===================================================== [ 18.477068][ T1] usbcore: registered new interface driver udlfb [ 18.482458][ T26] BUG: KMSAN: use-after-free in __fput+0x42b/0xf20 [ 18.489532][ T1] usbcore: registered new interface driver smscufx [ 18.483642][ T26] CPU: 1 PID: 26 Comm: kworker/1:1 Not tainted 5.9.0-rc4-syzkaller #0 [ 18.483642][ T26] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 18.483642][ T26] Workqueue: events delayed_fput [ 18.483642][ T26] Call Trace: [ 18.483642][ T26] dump_stack+0x21c/0x280 [ 18.483642][ T26] kmsan_report+0xf7/0x1e0 [ 18.509589][ T1] uvesafb: failed to execute /sbin/v86d [ 18.505154][ T26] __msan_warning+0x58/0xa0 [ 18.520360][ T1] uvesafb: make sure that the v86d helper is installed and executable [ 18.505154][ T26] __fput+0x42b/0xf20 [ 18.505154][ T26] ? kmsan_get_metadata+0x116/0x180 [ 18.505154][ T26] ? kmsan_set_origin_checked+0x95/0xf0 [ 18.528662][ T1] uvesafb: Getting VBE info block failed (eax=0x4f00, err=-2) [ 18.505154][ T26] delayed_fput+0x7a/0xe0 [ 18.537549][ T1] uvesafb: vbe_init() failed with -22 [ 18.505154][ T26] ? flush_delayed_fput+0xe0/0xe0 [ 18.547800][ T1] uvesafb: probe of uvesafb.0 failed with error -22 [ 18.505154][ T26] process_one_work+0x1688/0x2140 [ 18.505154][ T26] worker_thread+0x10bc/0x2730 [ 18.505154][ T26] ? kmsan_get_metadata+0x116/0x180 [ 18.505154][ T26] ? kmsan_get_metadata+0x116/0x180 [ 18.505154][ T26] kthread+0x551/0x590 [ 18.505154][ T26] ? process_one_work+0x2140/0x2140 [ 18.570663][ T1] vga16fb: mapped to 0x0000000022d04ee4 [ 18.505154][ T26] ? kthread_blkcg+0x110/0x110 [ 18.505154][ T26] ret_from_fork+0x1f/0x30 [ 18.505154][ T26] [ 18.643647][ T26] Uninit was created at: [ 18.643647][ T26] kmsan_internal_poison_shadow+0x66/0xd0 [ 18.643647][ T26] kmsan_slab_free+0x6e/0xb0 [ 18.643647][ T26] kmem_cache_free+0x2f7/0xd50 [ 18.643647][ T26] file_free_rcu+0x15d/0x190 [ 18.643647][ T26] rcu_core+0xf35/0x1e90 [ 18.643647][ T26] rcu_core_si+0xe/0x10 [ 18.643647][ T26] __do_softirq+0x2ea/0x7f5 [ 18.643647][ T26] ===================================================== [ 18.643647][ T26] Disabling lock debugging due to kernel taint [ 18.643647][ T26] Kernel panic - not syncing: panic_on_warn set ... [ 18.643647][ T26] CPU: 1 PID: 26 Comm: kworker/1:1 Tainted: G B 5.9.0-rc4-syzkaller #0 [ 18.643647][ T26] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 18.643647][ T26] Workqueue: events delayed_fput [ 18.643647][ T26] Call Trace: [ 18.643647][ T26] dump_stack+0x21c/0x280 [ 18.643647][ T26] panic+0x4d7/0xef7 [ 18.643647][ T26] ? add_taint+0x17c/0x210 [ 18.643647][ T26] kmsan_report+0x1df/0x1e0 [ 18.643647][ T26] __msan_warning+0x58/0xa0 [ 18.643647][ T26] __fput+0x42b/0xf20 [ 18.643647][ T26] ? kmsan_get_metadata+0x116/0x180 [ 18.643647][ T26] ? kmsan_set_origin_checked+0x95/0xf0 [ 18.643647][ T26] delayed_fput+0x7a/0xe0 [ 18.643647][ T26] ? flush_delayed_fput+0xe0/0xe0 [ 18.643647][ T26] process_one_work+0x1688/0x2140 [ 18.643647][ T26] worker_thread+0x10bc/0x2730 [ 18.643647][ T26] ? kmsan_get_metadata+0x116/0x180 [ 18.643647][ T26] ? kmsan_get_metadata+0x116/0x180 [ 18.643647][ T26] kthread+0x551/0x590 [ 18.643647][ T26] ? process_one_work+0x2140/0x2140 [ 18.643647][ T26] ? kthread_blkcg+0x110/0x110 [ 18.643647][ T26] ret_from_fork+0x1f/0x30 [ 18.643647][ T26] Kernel Offset: disabled [ 18.643647][ T26] Rebooting in 86400 seconds..