qemu-system-x86_64: -usbdevice tablet: '-usbdevice' is deprecated, please use '-device usb-...' instead ftruncate: Invalid argument qemu-system-x86_64: warning: hub 0 is not connected to host network [ 0.000000][ T0] Linux version 5.12.0-rc4-syzkaller (syzkaller@syzkaller) (gcc (Debian 10.2.1-6) 10.2.1 20210110, GNU ld (GNU Binutils for Debian) 2.35.1) #0 SMP PREEMPT now [ 0.000000][ T0] Command line: root=/dev/sda console=ttyS0 root=/dev/sda1 [ 0.000000][ T0] KERNEL supported cpus: [ 0.000000][ T0] Intel GenuineIntel [ 0.000000][ T0] AMD AuthenticAMD [ 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 0x0000000000100000-0x000000007ffdcfff] 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] ERROR: earlyprintk= earlyser already used [ 0.000000][ T0] ERROR: earlyprintk= earlyser already used [ 0.000000][ T0] ********************************************************** [ 0.000000][ T0] ** NOTICE NOTICE NOTICE NOTICE NOTICE NOTICE NOTICE ** [ 0.000000][ T0] ** ** [ 0.000000][ T0] ** This system shows unhashed kernel memory addresses ** [ 0.000000][ T0] ** via the console, logs, and other interfaces. This ** [ 0.000000][ T0] ** might reduce the security of your system. ** [ 0.000000][ T0] ** ** [ 0.000000][ T0] ** If you see this message and you are not debugging ** [ 0.000000][ T0] ** the kernel, report this immediately to your system ** [ 0.000000][ T0] ** administrator! ** [ 0.000000][ T0] ** ** [ 0.000000][ T0] ** NOTICE NOTICE NOTICE NOTICE NOTICE NOTICE NOTICE ** [ 0.000000][ T0] ********************************************************** [ 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 1.14.0-2 04/01/2014 [ 0.000000][ T0] Hypervisor detected: KVM [ 0.000000][ T0] kvm-clock: Using msrs 4b564d01 and 4b564d00 [ 0.000000][ T0] kvm-clock: cpu 0, msr f397001, primary cpu clock [ 0.000002][ T0] kvm-clock: using sched offset of 4641984503 cycles [ 0.012697][ T0] clocksource: kvm-clock: mask: 0xffffffffffffffff max_cycles: 0x1cd42e4dffb, max_idle_ns: 881590591483 ns [ 0.045902][ T0] tsc: Detected 2299.998 MHz processor [ 0.076114][ T0] last_pfn = 0x7ffdd max_arch_pfn = 0x400000000 [ 0.089601][ T0] x86/PAT: Configuration [0-7]: WB WC UC- UC WB WP UC- WT [ 0.120937][ T0] found SMP MP-table at [mem 0x000f5c80-0x000f5c8f] [ 0.130737][ T0] Using GB pages for direct mapping [ 0.141223][ T0] ACPI: Early table checksum verification disabled [ 0.151839][ T0] ACPI: RSDP 0x00000000000F5AD0 000014 (v00 BOCHS ) [ 0.163771][ T0] ACPI: RSDT 0x000000007FFE1F5B 000044 (v01 BOCHS BXPCRSDT 00000001 BXPC 00000001) [ 0.183789][ T0] ACPI: FACP 0x000000007FFE17ED 0000F4 (v03 BOCHS BXPCFACP 00000001 BXPC 00000001) [ 0.210571][ T0] ACPI: DSDT 0x000000007FFDF040 0027AD (v01 BOCHS BXPCDSDT 00000001 BXPC 00000001) [ 0.241050][ T0] ACPI: FACS 0x000000007FFDF000 000040 [ 0.255224][ T0] ACPI: APIC 0x000000007FFE18E1 0000B0 (v01 BOCHS BXPCAPIC 00000001 BXPC 00000001) [ 0.280569][ T0] ACPI: HPET 0x000000007FFE1991 000038 (v01 BOCHS BXPCHPET 00000001 BXPC 00000001) [ 0.310118][ T0] ACPI: SRAT 0x000000007FFE19C9 000150 (v01 BOCHS BXPCSRAT 00000001 BXPC 00000001) [ 0.333383][ T0] ACPI: MCFG 0x000000007FFE1B19 00003C (v01 BOCHS BXPCMCFG 00000001 BXPC 00000001) [ 0.356200][ T0] ACPI: SSDT 0x000000007FFE1B55 0002FE (v01 BOCHS NVDIMM 00000001 BXPC 00000001) [ 0.375032][ T0] ACPI: NFIT 0x000000007FFE1E53 0000E0 (v01 BOCHS BXPCNFIT 00000001 BXPC 00000001) [ 0.393965][ T0] ACPI: WAET 0x000000007FFE1F33 000028 (v01 BOCHS BXPCWAET 00000001 BXPC 00000001) [ 0.420586][ T0] SRAT: PXM 0 -> APIC 0x00 -> Node 0 [ 0.433734][ T0] SRAT: PXM 0 -> APIC 0x01 -> Node 0 [ 0.451393][ T0] SRAT: PXM 0 -> APIC 0x02 -> Node 0 [ 0.464194][ T0] SRAT: PXM 0 -> APIC 0x03 -> Node 0 [ 0.479533][ T0] SRAT: PXM 0 -> APIC 0x04 -> Node 0 [ 0.493072][ T0] SRAT: PXM 0 -> APIC 0x05 -> Node 0 [ 0.504641][ T0] SRAT: PXM 0 -> APIC 0x06 -> Node 0 [ 0.513527][ T0] SRAT: PXM 0 -> APIC 0x07 -> Node 0 [ 0.525673][ T0] ACPI: SRAT: Node 0 PXM 0 [mem 0x00000000-0x0009ffff] [ 0.549487][ T0] ACPI: SRAT: Node 0 PXM 0 [mem 0x00100000-0x7fffffff] [ 0.575842][ T0] ACPI: SRAT: Node 0 PXM 0 [mem 0x100000000-0x103ffffff] non-volatile [ 0.603119][ T0] ACPI: SRAT: Node 0 PXM 0 [mem 0x100000000-0x57fffffff] hotplug [ 0.620754][ T0] NUMA: Node 0 [mem 0x00000000-0x0009ffff] + [mem 0x00100000-0x7ffdcfff] -> [mem 0x00000000-0x7ffdcfff] [ 0.659717][ T0] Faking node 0 at [mem 0x0000000000000000-0x000000003fffffff] (1024MB) [ 0.688585][ T0] Faking node 1 at [mem 0x0000000040000000-0x000000007ffdcfff] (1023MB) [ 0.714548][ T0] NODE_DATA(0) allocated [mem 0x3fffb000-0x3fffffff] [ 0.731224][ T0] NODE_DATA(1) allocated [mem 0x7ffd7000-0x7ffdbfff] [ 0.890236][ T0] Zone ranges: [ 0.899546][ T0] DMA [mem 0x0000000000001000-0x0000000000ffffff] [ 0.927524][ T0] DMA32 [mem 0x0000000001000000-0x000000007ffdcfff] [ 0.948332][ T0] Normal empty [ 0.957096][ T0] Device empty [ 0.966125][ T0] Movable zone start for each node [ 0.989547][ T0] Early memory node ranges [ 1.006570][ T0] node 0: [mem 0x0000000000001000-0x000000000009efff] [ 1.035402][ T0] node 0: [mem 0x0000000000100000-0x000000003fffffff] [ 1.063464][ T0] node 1: [mem 0x0000000040000000-0x000000007ffdcfff] [ 1.091246][ T0] Initmem setup node 0 [mem 0x0000000000001000-0x000000003fffffff] [ 1.125580][ T0] DMA zone: 28770 pages in unavailable ranges [ 1.169749][ T0] Initmem setup node 1 [mem 0x0000000040000000-0x000000007ffdcfff] [ 1.207823][ T0] DMA32 zone: 35 pages in unavailable ranges [ 2.674696][ T0] kasan: KernelAddressSanitizer initialized [ 2.695227][ T0] ACPI: PM-Timer IO Port: 0x608 [ 2.702887][ T0] ACPI: LAPIC_NMI (acpi_id[0xff] dfl dfl lint[0x1]) [ 2.717797][ T0] IOAPIC[0]: apic_id 0, version 17, address 0xfec00000, GSI 0-23 [ 2.735764][ T0] ACPI: INT_SRC_OVR (bus 0 bus_irq 0 global_irq 2 dfl dfl) [ 2.757530][ T0] ACPI: INT_SRC_OVR (bus 0 bus_irq 5 global_irq 5 high level) [ 2.777428][ T0] ACPI: INT_SRC_OVR (bus 0 bus_irq 9 global_irq 9 high level) [ 2.796497][ T0] ACPI: INT_SRC_OVR (bus 0 bus_irq 10 global_irq 10 high level) [ 2.812392][ T0] ACPI: INT_SRC_OVR (bus 0 bus_irq 11 global_irq 11 high level) [ 2.833922][ T0] Using ACPI (MADT) for SMP configuration information [ 2.856003][ T0] ACPI: HPET id: 0x8086a201 base: 0xfed00000 [ 2.881269][ T0] TSC deadline timer available [ 2.899345][ T0] smpboot: Allowing 8 CPUs, 4 hotplug CPUs [ 2.919581][ T0] kvm-guest: KVM setup pv remote TLB flush [ 2.940510][ T0] kvm-guest: setup PV sched yield [ 2.957316][ T0] PM: hibernation: Registered nosave memory: [mem 0x00000000-0x00000fff] [ 2.981004][ T0] PM: hibernation: Registered nosave memory: [mem 0x0009f000-0x0009ffff] [ 3.002276][ T0] PM: hibernation: Registered nosave memory: [mem 0x000a0000-0x000effff] [ 3.019186][ T0] PM: hibernation: Registered nosave memory: [mem 0x000f0000-0x000fffff] [ 3.037339][ T0] [mem 0xc0000000-0xfed1bfff] available for PCI devices [ 3.047146][ T0] Booting paravirtualized kernel on KVM [ 3.062702][ T0] clocksource: refined-jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604462750000 ns [ 3.166068][ T0] setup_percpu: NR_CPUS:8 nr_cpumask_bits:8 nr_cpu_ids:8 nr_node_ids:2 [ 3.247099][ T0] percpu: Embedded 64 pages/cpu s223880 r8192 d30072 u1048576 [ 3.273117][ T0] kvm-guest: KVM setup async PF for cpu 0 [ 3.293218][ T0] kvm-guest: stealtime: cpu 0, msr 2ca1f440 [ 3.313833][ T0] kvm-guest: PV spinlocks enabled [ 3.330866][ T0] PV qspinlock hash table entries: 256 (order: 0, 4096 bytes, linear) [ 3.367189][ T0] Built 2 zonelists, mobility grouping on. Total pages: 515942 [ 3.402811][ T0] Policy zone: DMA32 [ 3.421473][ T0] Kernel command line: earlyprintk=serial net.ifnames=0 sysctl.kernel.hung_task_all_cpu_backtrace=1 ima_policy=tcb 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 binder.debug_mask=0 rcupdate.rcu_expedited=1 no_hash_pointers root=/dev/sda console=ttyS0 vsyscall=native numa=fake=2 kvm-intel.nested=1 spec_store_bypass_disable=prctl nopcid 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 dummy_hcd.num=8 watchdog_thresh=55 workqueue.watchdog_thresh=140 panic_on_warn=1 root=/dev/sda console=ttyS0 root=/dev/sda1 [ 3.673857][ T0] mem auto-init: stack:off, heap alloc:on, heap free:off [ 4.469719][ T0] Memory: 1441376K/2096620K available (135201K kernel code, 33278K rwdata, 38276K rodata, 3872K init, 16976K bss, 654988K reserved, 0K cma-reserved) [ 4.509312][ T0] Running RCU self tests [ 4.515946][ T0] rcu: Preemptible hierarchical RCU implementation. [ 4.530396][ T0] rcu: RCU lockdep checking is enabled. [ 4.540880][ T0] rcu: RCU callback double-/use-after-free debug enabled. [ 4.555038][ T0] rcu: RCU debug extended QS entry/exit. [ 4.566800][ T0] All grace periods are expedited (rcu_expedited). [ 4.578822][ T0] Trampoline variant of Tasks RCU enabled. [ 4.587399][ T0] Tracing variant of Tasks RCU enabled. [ 4.596477][ T0] rcu: RCU calculated value of scheduler-enlistment delay is 10 jiffies. [ 4.650805][ T0] NR_IRQS: 4352, nr_irqs: 488, preallocated irqs: 16 [ 4.668290][ T0] kfence: initialized - using 2097152 bytes for 255 objects at 0xffff88807ea00000-0xffff88807ec00000 [ 4.693508][ T0] random: crng done (trusting CPU's manufacturer) [ 4.810722][ T0] Console: colour VGA+ 80x25 [ 4.820938][ T0] printk: console [ttyS0] enabled [ 4.820938][ T0] printk: console [ttyS0] enabled [ 4.837414][ T0] printk: bootconsole [earlyser0] disabled [ 4.837414][ T0] printk: bootconsole [earlyser0] disabled [ 4.856675][ T0] Lock dependency validator: Copyright (c) 2006 Red Hat, Inc., Ingo Molnar [ 4.867954][ T0] ... MAX_LOCKDEP_SUBCLASSES: 8 [ 4.873949][ T0] ... MAX_LOCK_DEPTH: 48 [ 4.880599][ T0] ... MAX_LOCKDEP_KEYS: 8192 [ 4.887378][ T0] ... CLASSHASH_SIZE: 4096 [ 4.894462][ T0] ... MAX_LOCKDEP_ENTRIES: 32768 [ 4.901758][ T0] ... MAX_LOCKDEP_CHAINS: 65536 [ 4.909656][ T0] ... CHAINHASH_SIZE: 32768 [ 4.916708][ T0] memory used by lock dependency info: 6365 kB [ 4.924881][ T0] memory used for stack traces: 4224 kB [ 4.930744][ T0] per task-struct memory footprint: 1920 bytes [ 4.937241][ T0] mempolicy: Enabling automatic NUMA balancing. Configure with numa_balancing= or the kernel.numa_balancing sysctl [ 4.950185][ T0] ACPI: Core revision 20210105 [ 4.956980][ T0] clocksource: hpet: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604467 ns [ 4.970699][ T0] APIC: Switch to symmetric I/O mode setup [ 4.979701][ T0] kvm-guest: setup PV IPIs [ 5.006487][ T0] ..TIMER: vector=0x30 apic1=0 pin1=2 apic2=-1 pin2=-1 [ 5.014083][ T0] clocksource: tsc-early: mask: 0xffffffffffffffff max_cycles: 0x212733415c7, max_idle_ns: 440795236380 ns [ 5.027010][ T0] Calibrating delay loop (skipped) preset value.. 4599.99 BogoMIPS (lpj=22999980) [ 5.037016][ T0] pid_max: default: 32768 minimum: 301 [ 5.048960][ T0] LSM: Security Framework initializing [ 5.057460][ T0] Yama: becoming mindful. [ 5.067535][ T0] TOMOYO Linux initialized [ 5.072802][ T0] SELinux: Initializing. [ 5.090395][ T0] Dentry cache hash table entries: 262144 (order: 9, 2097152 bytes, vmalloc) [ 5.108385][ T0] Inode-cache hash table entries: 131072 (order: 8, 1048576 bytes, vmalloc) [ 5.117530][ T0] Mount-cache hash table entries: 4096 (order: 3, 32768 bytes, vmalloc) [ 5.127252][ T0] Mountpoint-cache hash table entries: 4096 (order: 3, 32768 bytes, vmalloc) [ 5.151158][ T0] x86/cpu: User Mode Instruction Prevention (UMIP) activated [ 5.159237][ T0] Last level iTLB entries: 4KB 0, 2MB 0, 4MB 0 [ 5.167013][ T0] Last level dTLB entries: 4KB 0, 2MB 0, 4MB 0, 1GB 0 [ 5.177093][ T0] Spectre V1 : Mitigation: usercopy/swapgs barriers and __user pointer sanitization [ 5.187091][ T0] Spectre V2 : Spectre mitigation: kernel not compiled with retpoline; no mitigation available! [ 5.187164][ T0] Speculative Store Bypass: Mitigation: Speculative Store Bypass disabled via prctl [ 5.207025][ T0] MDS: Mitigation: Clear CPU buffers [ 5.218575][ T0] Freeing SMP alternatives memory: 104K [ 5.228034][ T1] smpboot: CPU0: Intel(R) Xeon(R) CPU @ 2.30GHz (family: 0x6, model: 0x3f, stepping: 0x0) [ 5.245279][ T1] Running RCU-tasks wait API self tests [ 5.367514][ T1] Performance Events: unsupported p6 CPU model 63 no PMU driver, software events only. [ 5.379146][ T1] rcu: Hierarchical SRCU implementation. [ 5.387223][ T13] Callback from call_rcu_tasks_trace() invoked. [ 5.407326][ T1] NMI watchdog: Perf NMI watchdog permanently disabled [ 5.421936][ T1] smp: Bringing up secondary CPUs ... [ 5.440254][ T1] x86: Booting SMP configuration: [ 5.447212][ T1] .... node #0, CPUs: #1 [ 0.339237][ T0] kvm-clock: cpu 1, msr f397041, secondary cpu clock [ 5.489056][ T18] kvm-guest: KVM setup async PF for cpu 1 [ 5.496098][ T18] kvm-guest: stealtime: cpu 1, msr 2cb1f440 [ 5.507783][ 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.