[ 0.000000][ T0] Linux version 5.6.0-syzkaller (syzkaller@syzkaller) (gcc version 9.0.0 20181231 (experimental) (GCC)) #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 security=selinux lsm=lockdown,yama,safesetid,integrity,selinux,tomoyo 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 [ 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 [ 0.000068][ T0] kvm-clock: cpu 0, msr bbb7001, primary cpu clock [ 0.000068][ T0] kvm-clock: using sched offset of 16760649583 cycles [ 0.014228][ T0] clocksource: kvm-clock: mask: 0xffffffffffffffff max_cycles: 0x1cd42e4dffb, max_idle_ns: 881590591483 ns [ 0.055625][ T0] tsc: Detected 2000.196 MHz processor [ 0.087815][ T0] last_pfn = 0x7ffdd max_arch_pfn = 0x400000000 [ 0.110476][ T0] x86/PAT: Configuration [0-7]: WB WC UC- UC WB WP UC- WT [ 0.147656][ T0] found SMP MP-table at [mem 0x000f5a40-0x000f5a4f] [ 0.169605][ T0] check: Scanning 1 areas for low memory corruption [ 0.216783][ T0] ACPI: Early table checksum verification disabled [ 0.241773][ T0] ACPI: RSDP 0x00000000000F5870 000014 (v00 BOCHS ) [ 0.259949][ T0] ACPI: RSDT 0x000000007FFE1F9D 000040 (v01 BOCHS BXPCRSDT 00000001 BXPC 00000001) [ 0.287547][ T0] ACPI: FACP 0x000000007FFE1860 0000F4 (v03 BOCHS BXPCFACP 00000001 BXPC 00000001) [ 0.317613][ T0] ACPI: DSDT 0x000000007FFDF040 002820 (v01 BOCHS BXPCDSDT 00000001 BXPC 00000001) [ 0.344896][ T0] ACPI: FACS 0x000000007FFDF000 000040 [ 0.363421][ T0] ACPI: APIC 0x000000007FFE1954 0000B0 (v01 BOCHS BXPCAPIC 00000001 BXPC 00000001) [ 0.400632][ T0] ACPI: HPET 0x000000007FFE1A04 000038 (v01 BOCHS BXPCHPET 00000001 BXPC 00000001) [ 0.439422][ T0] ACPI: SRAT 0x000000007FFE1A3C 000178 (v01 BOCHS BXPCSRAT 00000001 BXPC 00000001) [ 0.478338][ T0] ACPI: MCFG 0x000000007FFE1BB4 00003C (v01 BOCHS BXPCMCFG 00000001 BXPC 00000001) [ 0.508663][ T0] ACPI: SSDT 0x000000007FFE1BF0 0002CD (v01 BOCHS NVDIMM 00000001 BXPC 00000001) [ 0.533757][ T0] ACPI: NFIT 0x000000007FFE1EBD 0000E0 (v01 BOCHS BXPCNFIT 00000001 BXPC 00000001) [ 0.560896][ T0] SRAT: PXM 0 -> APIC 0x00 -> Node 0 [ 0.575770][ T0] SRAT: PXM 0 -> APIC 0x01 -> Node 0 [ 0.586213][ T0] SRAT: PXM 0 -> APIC 0x02 -> Node 0 [ 0.599350][ T0] SRAT: PXM 0 -> APIC 0x03 -> Node 0 [ 0.611879][ T0] SRAT: PXM 1 -> APIC 0x04 -> Node 1 [ 0.622125][ T0] SRAT: PXM 1 -> APIC 0x05 -> Node 1 [ 0.633574][ T0] SRAT: PXM 1 -> APIC 0x06 -> Node 1 [ 0.648957][ T0] SRAT: PXM 1 -> APIC 0x07 -> Node 1 [ 0.666519][ T0] ACPI: SRAT: Node 0 PXM 0 [mem 0x00000000-0x0009ffff] [ 0.700830][ T0] ACPI: SRAT: Node 0 PXM 0 [mem 0x00100000-0x3fffffff] [ 0.732888][ T0] ACPI: SRAT: Node 1 PXM 1 [mem 0x40000000-0x7fffffff] [ 0.764730][ T0] ACPI: SRAT: Node 1 PXM 1 [mem 0x100000000-0x57fffffff] hotplug [ 0.796796][ T0] NUMA: Node 0 [mem 0x00000000-0x0009ffff] + [mem 0x00100000-0x3fffffff] -> [mem 0x00000000-0x3fffffff] [ 0.838742][ T0] Faking node 0 at [mem 0x0000000000000000-0x000000003fffffff] (1024MB) [ 0.872427][ T0] Faking node 1 at [mem 0x0000000040000000-0x000000007ffdcfff] (1023MB) [ 0.912552][ T0] NODE_DATA(0) allocated [mem 0x3fffb000-0x3fffffff] [ 0.943942][ T0] NODE_DATA(1) allocated [mem 0x7ffd7000-0x7ffdbfff] [ 1.094421][ T0] Zone ranges: [ 1.102867][ T0] DMA [mem 0x0000000000001000-0x0000000000ffffff] [ 1.122491][ T0] DMA32 [mem 0x0000000001000000-0x000000007ffdcfff] [ 1.137710][ T0] Normal empty [ 1.145324][ T0] Device empty [ 1.154683][ T0] Movable zone start for each node [ 1.164718][ T0] Early memory node ranges [ 1.178593][ T0] node 0: [mem 0x0000000000001000-0x000000000009efff] [ 1.199099][ T0] node 0: [mem 0x0000000000100000-0x000000003fffffff] [ 1.216068][ T0] node 1: [mem 0x0000000040000000-0x000000007ffdcfff] [ 1.229602][ T0] Zeroed struct page in unavailable ranges: 133 pages [ 1.229633][ T0] Initmem setup node 0 [mem 0x0000000000001000-0x000000003fffffff] [ 1.274682][ T0] Initmem setup node 1 [mem 0x0000000040000000-0x000000007ffdcfff] [ 3.458605][ T0] kasan: KernelAddressSanitizer initialized [ 3.560122][ T0] ACPI: PM-Timer IO Port: 0x608 [ 3.592368][ T0] ACPI: LAPIC_NMI (acpi_id[0xff] dfl dfl lint[0x1]) [ 3.624763][ T0] IOAPIC[0]: apic_id 0, version 17, address 0xfec00000, GSI 0-23 [ 3.641740][ T0] ACPI: INT_SRC_OVR (bus 0 bus_irq 0 global_irq 2 dfl dfl) [ 3.659131][ T0] ACPI: INT_SRC_OVR (bus 0 bus_irq 5 global_irq 5 high level) [ 3.679051][ T0] ACPI: INT_SRC_OVR (bus 0 bus_irq 9 global_irq 9 high level) [ 3.707423][ T0] ACPI: INT_SRC_OVR (bus 0 bus_irq 10 global_irq 10 high level) [ 3.732347][ T0] ACPI: INT_SRC_OVR (bus 0 bus_irq 11 global_irq 11 high level) [ 3.756776][ T0] Using ACPI (MADT) for SMP configuration information [ 3.776030][ T0] ACPI: HPET id: 0x8086a201 base: 0xfed00000 [ 3.793825][ T0] smpboot: Allowing 8 CPUs, 4 hotplug CPUs [ 3.811527][ T0] KVM setup pv remote TLB flush [ 3.836277][ T0] PM: hibernation: Registered nosave memory: [mem 0x00000000-0x00000fff] [ 3.858487][ T0] PM: hibernation: Registered nosave memory: [mem 0x0009f000-0x0009ffff] [ 3.880325][ T0] PM: hibernation: Registered nosave memory: [mem 0x000a0000-0x000effff] [ 3.901477][ T0] PM: hibernation: Registered nosave memory: [mem 0x000f0000-0x000fffff] [ 3.929337][ T0] [mem 0xc0000000-0xfed1bfff] available for PCI devices [ 3.953758][ T0] Booting paravirtualized kernel on KVM [ 3.976882][ T0] clocksource: refined-jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604462750000 ns [ 4.162658][ T0] setup_percpu: NR_CPUS:64 nr_cpumask_bits:64 nr_cpu_ids:8 nr_node_ids:2 [ 4.263588][ T0] percpu: Embedded 67 pages/cpu s233544 r8192 d32696 u1048576 [ 4.320590][ T0] KVM setup async PF for cpu 0 [ 4.337684][ T0] kvm-stealtime: cpu 0, msr 2ce22a40 [ 4.358188][ T0] PV qspinlock hash table entries: 256 (order: 0, 4096 bytes, linear) [ 4.390437][ T0] Built 2 zonelists, mobility grouping on. Total pages: 515942 [ 4.413018][ T0] Policy zone: DMA32 [ 4.425703][ 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 security=selinux lsm=lockdown,yama,safesetid,integrity,selinux,tomoyo 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 [ 4.732661][ T0] mem auto-init: stack:off, heap alloc:on, heap free:off [ 6.025472][ T0] Memory: 1505664K/2096620K available (114695K kernel code, 17079K rwdata, 21332K rodata, 2764K init, 25052K bss, 590956K reserved, 0K cma-reserved) [ 6.309778][ T0] Running RCU self tests [ 6.330152][ T0] rcu: Preemptible hierarchical RCU implementation. [ 6.361118][ T0] rcu: RCU lockdep checking is enabled. [ 6.387718][ T0] rcu: RCU restricting CPUs from NR_CPUS=64 to nr_cpu_ids=8. [ 6.417915][ T0] rcu: RCU callback double-/use-after-free debug enabled. [ 6.444939][ T0] Tasks RCU enabled. [ 6.460236][ T0] rcu: RCU calculated value of scheduler-enlistment delay is 10 jiffies. [ 6.492581][ T0] rcu: Adjusting geometry for rcu_fanout_leaf=16, nr_cpu_ids=8 [ 6.557805][ T0] NR_IRQS: 4352, nr_irqs: 488, preallocated irqs: 16 [ 6.637281][ T0] random: get_random_bytes called from start_kernel+0x516/0x8a1 with crng_init=0 [ 6.995679][ T0] Console: colour VGA+ 80x25 [ 7.069318][ T0] printk: console [ttyS0] enabled [ 7.069318][ T0] printk: console [ttyS0] enabled [ 7.113417][ T0] printk: bootconsole [earlyser0] disabled [ 7.113417][ T0] printk: bootconsole [earlyser0] disabled [ 7.177458][ T0] Lock dependency validator: Copyright (c) 2006 Red Hat, Inc., Ingo Molnar [ 7.214372][ T0] ... MAX_LOCKDEP_SUBCLASSES: 8 [ 7.234841][ T0] ... MAX_LOCK_DEPTH: 48 [ 7.256612][ T0] ... MAX_LOCKDEP_KEYS: 8192 [ 7.279471][ T0] ... CLASSHASH_SIZE: 4096 [ 7.301778][ T0] ... MAX_LOCKDEP_ENTRIES: 32768 [ 7.327258][ T0] ... MAX_LOCKDEP_CHAINS: 65536 [ 7.353182][ T0] ... CHAINHASH_SIZE: 32768 [ 7.377225][ T0] memory used by lock dependency info: 6301 kB [ 7.405178][ T0] memory used for stack traces: 4224 kB [ 7.433026][ T0] per task-struct memory footprint: 1920 bytes [ 7.468048][ T0] mempolicy: Enabling automatic NUMA balancing. Configure with numa_balancing= or the kernel.numa_balancing sysctl [ 7.541345][ T0] ACPI: Core revision 20200214 [ 7.600648][ T0] clocksource: hpet: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604467 ns [ 7.704996][ T0] APIC: Switch to symmetric I/O mode setup [ 7.771324][ T0] x2apic enabled [ 7.818872][ T0] Switched APIC routing to physical x2apic. [ 7.858581][ T0] KVM setup pv IPIs [ 8.005539][ T0] ..TIMER: vector=0x30 apic1=0 pin1=2 apic2=-1 pin2=-1 [ 8.046275][ T0] clocksource: tsc-early: mask: 0xffffffffffffffff max_cycles: 0x1cd4e75f6d2, max_idle_ns: 440795251066 ns [ 8.108100][ T0] Calibrating delay loop (skipped) preset value.. 4000.39 BogoMIPS (lpj=20001960) [ 8.118668][ T0] pid_max: default: 32768 minimum: 301 [ 8.142415][ T0] LSM: Security Framework initializing [ 8.146651][ T0] LSM: security= is ignored because it is superseded by lsm= [ 8.159467][ T0] Yama: becoming mindful. [ 8.180249][ T0] SELinux: Initializing. [ 8.194608][ T0] TOMOYO Linux initialized [ 8.240420][ T0] Dentry cache hash table entries: 262144 (order: 9, 2097152 bytes, vmalloc) [ 8.266682][ T0] Inode-cache hash table entries: 131072 (order: 8, 1048576 bytes, vmalloc) [ 8.279610][ T0] Mount-cache hash table entries: 4096 (order: 3, 32768 bytes, vmalloc) [ 8.287017][ T0] Mountpoint-cache hash table entries: 4096 (order: 3, 32768 bytes, vmalloc) [ 8.538460][ T0] x86/cpu: User Mode Instruction Prevention (UMIP) activated [ 8.574337][ T0] Last level iTLB entries: 4KB 0, 2MB 0, 4MB 0 [ 8.576397][ T0] Last level dTLB entries: 4KB 0, 2MB 0, 4MB 0, 1GB 0 [ 8.598930][ T0] Spectre V1 : Mitigation: usercopy/swapgs barriers and __user pointer sanitization [ 8.606862][ T0] Spectre V2 : Spectre mitigation: kernel not compiled with retpoline; no mitigation available! [ 8.607300][ T0] Speculative Store Bypass: Mitigation: Speculative Store Bypass disabled via prctl [ 8.630221][ T0] TAA: Mitigation: Clear CPU buffers [ 8.636767][ T0] MDS: Mitigation: Clear CPU buffers [ 8.790303][ T0] Freeing SMP alternatives memory: 96K [ 9.111737][ T1] smpboot: CPU0: Intel(R) Xeon(R) CPU @ 2.00GHz (family: 0x6, model: 0x55, stepping: 0x3) [ 9.150017][ T1] Performance Events: unsupported p6 CPU model 85 no PMU driver, software events only. [ 9.167260][ T1] rcu: Hierarchical SRCU implementation. [ 9.199063][ T1] NMI watchdog: Perf NMI watchdog permanently disabled [ 9.226331][ T1] smp: Bringing up secondary CPUs ... [ 9.263170][ T1] x86: Booting SMP configuration: [ 9.266725][ T1] .... node #0, CPUs: #1 [ 1.386012][ T0] kvm-clock: cpu 1, msr bbb7041, secondary cpu clock [ 9.331410][ T15] KVM setup async PF for cpu 1 [ 9.336373][ T15] kvm-stealtime: cpu 1, msr 2cf22a40 [ 9.381288][ 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. [ 9.388113][ 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. [ 9.425144][ T1] #2 [ 1.386012][ T0] kvm-clock: cpu 2, msr bbb7081, secondary cpu clock [ 9.496463][ T20] KVM setup async PF for cpu 2 [ 9.496463][ T20] kvm-stealtime: cpu 2, msr 2d022a40 [ 9.546559][ T1] #3 [ 1.386012][ T0] kvm-clock: cpu 3, msr bbb70c1, secondary cpu clock [ 9.596857][ T25] KVM setup async PF for cpu 3 [ 9.606373][ T25] kvm-stealtime: cpu 3, msr 2d122a40 [ 9.627062][ T1] smp: Brought up 2 nodes, 4 CPUs [ 9.636599][ T1] smpboot: Max logical packages: 2 [ 9.646513][ T1] smpboot: Total of 4 processors activated (16001.56 BogoMIPS) [ 9.721421][ T1] devtmpfs: initialized [ 9.752043][ T1] x86/mm: Memory block size: 128MB [ 9.930657][ T1] clocksource: jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604462750000 ns [ 9.936373][ T33] kworker/u17:1 (33) used greatest stack depth: 27408 bytes left [ 9.942655][ T1] futex hash table entries: 2048 (order: 6, 262144 bytes, vmalloc) [ 9.976041][ T1] xor: automatically using best checksumming function avx [ 9.997027][ T1] PM: RTC time: 02:08:28, date: 2020-04-15 [ 10.011546][ T1] thermal_sys: Registered thermal governor 'step_wise' [ 10.011551][ T1] thermal_sys: Registered thermal governor 'user_space' [ 10.063012][ T1] NET: Registered protocol family 16 [ 10.101410][ T1] audit: initializing netlink subsys (disabled) [ 10.111928][ T40] audit: type=2000 audit(1586916507.421:1): state=initialized audit_enabled=0 res=1 [ 10.176808][ T1] cpuidle: using governor menu [ 10.213595][ T1] ACPI: bus type PCI registered [ 10.253147][ T1] dca service started, version 1.12.1 [ 10.280207][ T1] PCI: MMCONFIG for domain 0000 [bus 00-ff] at [mem 0xb0000000-0xbfffffff] (base 0xb0000000) [ 10.307709][ T1] PCI: MMCONFIG at [mem 0xb0000000-0xbfffffff] reserved in E820 [ 10.422851][ T1] PCI: Using configuration type 1 for base access [ 10.507581][ T139] kworker/u17:0 (139) used greatest stack depth: 27264 bytes left [ 10.636728][ T511] kworker/u17:5 (511) used greatest stack depth: 27232 bytes left [ 10.792537][ T1] HugeTLB registered 2.00 MiB page size, pre-allocated 0 pages [ 10.918271][ T1] cryptd: max_cpu_qlen set to 1000 [ 11.204340][ T1] raid6: avx512x4 gen() 14711 MB/s [ 11.386408][ T1] raid6: avx512x4 xor() 6603 MB/s [ 11.565635][ T1] raid6: avx512x2 gen() 11557 MB/s [ 11.753691][ T1] raid6: avx512x2 xor() 5618 MB/s [ 11.963751][ T1] raid6: avx512x1 gen() 8048 MB/s [ 12.149508][ T1] raid6: avx512x1 xor() 3269 MB/s [ 12.326519][ T1] raid6: avx2x4 gen() 10052 MB/s [ 12.506438][ T1] raid6: avx2x4 xor() 5423 MB/s [ 12.686613][ T1] raid6: avx2x2 gen() 6174 MB/s [ 12.866451][ T1] raid6: avx2x2 xor() 3441 MB/s [ 13.046483][ T1] raid6: avx2x1 gen() 4773 MB/s [ 13.227566][ T1] raid6: avx2x1 xor() 1811 MB/s [ 13.416648][ T1] raid6: sse2x4 gen() 5185 MB/s [ 13.606646][ T1] raid6: sse2x4 xor() 2603 MB/s [ 13.786457][ T1] raid6: sse2x2 gen() 2391 MB/s [ 13.966662][ T1] raid6: sse2x2 xor() 1702 MB/s [ 14.146756][ T1] raid6: sse2x1 gen() 2125 MB/s [ 14.355198][ T1] raid6: sse2x1 xor() 829 MB/s [ 14.386547][ T1] raid6: using algorithm avx512x4 gen() 14711 MB/s [ 14.426653][ T1] raid6: .... xor() 6603 MB/s, rmw enabled [ 14.477098][ T1] raid6: using avx512x2 recovery algorithm [ 14.717109][ T1] ACPI: Added _OSI(Module Device) [ 14.738996][ T1] ACPI: Added _OSI(Processor Device) [ 14.767242][ T1] ACPI: Added _OSI(3.0 _SCP Extensions) [ 14.796639][ T1] ACPI: Added _OSI(Processor Aggregator Device) [ 14.827183][ T1] ACPI: Added _OSI(Linux-Dell-Video) [ 14.857202][ T1] ACPI: Added _OSI(Linux-Lenovo-NV-HDMI-Audio) [ 14.897597][ T1] ACPI: Added _OSI(Linux-HPI-Hybrid-Graphics) [ 15.087859][ T1] ACPI: 2 ACPI AML tables successfully acquired and loaded [ 15.329904][ T1] ACPI: Interpreter enabled [ 15.369031][ T1] ACPI: (supports S0 S3 S4 S5) [ 15.388668][ T1] ACPI: Using IOAPIC for interrupt routing [ 15.418924][ T1] PCI: Using host bridge windows from ACPI; if necessary, use "pci=nocrs" and report a bug [ 15.479798][ T1] ACPI: Enabled 3 GPEs in block 00 to 3F [ 15.725130][ T1] ACPI: PCI Root Bridge [PCI0] (domain 0000 [bus 00-ff]) [ 15.748826][ T1] acpi PNP0A08:00: _OSC: OS supports [ExtendedConfig ASPM ClockPM Segments MSI HPX-Type3] [ 15.811408][ T1] acpi PNP0A08:00: _OSC: platform does not support [LTR] [ 15.862400][ T1] acpi PNP0A08:00: _OSC: OS now controls [PCIeHotplug PME AER PCIeCapability] [ 15.966373][ T1] PCI host bridge to bus 0000:00 [ 16.006986][ T1] pci_bus 0000:00: Unknown NUMA node; performance will be reduced [ 16.056774][ T1] pci_bus 0000:00: root bus resource [io 0x0000-0x0cf7 window] [ 16.106877][ T1] pci_bus 0000:00: root bus resource [io 0x0d00-0xffff window] [ 16.166761][ T1] pci_bus 0000:00: root bus resource [mem 0x000a0000-0x000bffff window] [ 16.226821][ T1] pci_bus 0000:00: root bus resource [mem 0x80000000-0xafffffff window] [ 16.296737][ T1] pci_bus 0000:00: root bus resource [mem 0xc0000000-0xfebfffff window] [ 16.357049][ T1] pci_bus 0000:00: root bus resource [mem 0x580000000-0xd7fffffff window] [ 16.417314][ T1] pci_bus 0000:00: root bus resource [bus 00-ff] [ 16.479257][ T1] pci 0000:00:00.0: [8086:29c0] type 00 class 0x060000 [ 16.645730][ T1] pci 0000:00:01.0: [1af4:1050] type 00 class 0x030000 [ 16.826373][ T1] pci 0000:00:01.0: reg 0x10: [mem 0xfe000000-0xfe7fffff pref] [ 17.036373][ T1] pci 0000:00:01.0: reg 0x18: [mem 0xfe800000-0xfe803fff 64bit pref] [ 17.216373][ T1] pci 0000:00:01.0: reg 0x20: [mem 0xfebf4000-0xfebf4fff] [ 17.396373][ T1] pci 0000:00:01.0: reg 0x30: [mem 0xfebe0000-0xfebeffff pref] [ 18.026373][ T1] pci 0000:00:02.0: [8086:100e] type 00 class 0x020000 [ 18.114636][ T1] pci 0000:00:02.0: reg 0x10: [mem 0xfebc0000-0xfebdffff] [ 18.198408][ T1] pci 0000:00:02.0: reg 0x14: [io 0xc600-0xc63f] [ 18.305273][ T1] pci 0000:00:02.0: reg 0x30: [mem 0xfeb40000-0xfeb7ffff pref] [ 18.478433][ T1] pci 0000:00:03.0: [1af4:1000] type 00 class 0x020000 [ 18.566881][ T1] pci 0000:00:03.0: reg 0x10: [io 0xc680-0xc69f] [ 18.655413][ T1] pci 0000:00:03.0: reg 0x14: [mem 0xfebf5000-0xfebf5fff] [ 18.776931][ T1] pci 0000:00:03.0: reg 0x20: [mem 0xfe804000-0xfe807fff 64bit pref] [ 18.886092][ T1] pci 0000:00:03.0: reg 0x30: [mem 0xfeb80000-0xfebbffff pref] [ 19.047028][ T1] pci 0000:00:04.0: [1274:5000] type 00 class 0x040100 [ 19.131168][ T1] pci 0000:00:04.0: reg 0x10: [io 0xc400-0xc4ff] [ 19.246228][ T1] pci 0000:00:05.0: [8086:2415] type 00 class 0x040100 [ 19.318513][ T1] pci 0000:00:05.0: reg 0x10: [io 0xc000-0xc3ff] [ 19.373162][ T1] pci 0000:00:05.0: reg 0x14: [io 0xc500-0xc5ff] [ 19.460580][ T1] pci 0000:00:06.0: [8086:2668] type 00 class 0x040300 [ 19.527082][ T1] pci 0000:00:06.0: reg 0x10: [mem 0xfebf0000-0xfebf3fff] [ 19.663942][ T1] pci 0000:00:07.0: [1af4:1009] type 00 class 0x000200 [ 19.730702][ T1] pci 0000:00:07.0: reg 0x10: [io 0xc6a0-0xc6bf] [ 19.782389][ T1] pci 0000:00:07.0: reg 0x14: [mem 0xfebf6000-0xfebf6fff] [ 19.846767][ T1] pci 0000:00:07.0: reg 0x20: [mem 0xfe808000-0xfe80bfff 64bit pref] [ 19.982939][ T1] pci 0000:00:1d.0: [8086:2934] type 00 class 0x0c0300 [ 20.074686][ T1] pci 0000:00:1d.0: reg 0x20: [io 0xc6c0-0xc6df] [ 20.140158][ T1] pci 0000:00:1d.1: [8086:2935] type 00 class 0x0c0300 [ 20.225353][ T1] pci 0000:00:1d.1: reg 0x20: [io 0xc6e0-0xc6ff] [ 20.300372][ T1] pci 0000:00:1d.2: [8086:2936] type 00 class 0x0c0300 [ 20.386601][ T1] pci 0000:00:1d.2: reg 0x20: [io 0xc700-0xc71f] [ 20.459574][ T1] pci 0000:00:1d.7: [8086:293a] type 00 class 0x0c0320 [ 20.526520][ T1] pci 0000:00:1d.7: reg 0x10: [mem 0xfebf7000-0xfebf7fff] [ 20.614383][ T1] pci 0000:00:1f.0: [8086:2918] type 00 class 0x060100 [ 20.694135][ T1] pci 0000:00:1f.0: quirk: [io 0x0600-0x067f] claimed by ICH6 ACPI/GPIO/TCO [ 20.732669][ T1] pci 0000:00:1f.0: quirk_ich7_lpc+0x0/0x70 took 39062 usecs [ 20.797678][ T1] pci 0000:00:1f.2: [8086:2922] type 00 class 0x010601 [ 20.867968][ T1] pci 0000:00:1f.2: reg 0x20: [io 0xc720-0xc73f] [ 20.911446][ T1] pci 0000:00:1f.2: reg 0x24: [mem 0xfebf8000-0xfebf8fff] [ 20.997825][ T1] pci 0000:00:1f.3: [8086:2930] type 00 class 0x0c0500 [ 21.056247][ T1] pci 0000:00:1f.3: reg 0x20: [io 0x0700-0x073f] [ 21.226227][ T1] ACPI: PCI Interrupt Link [LNKA] (IRQs 5 *10 11) [ 21.244685][ T1] ACPI: PCI Interrupt Link [LNKB] (IRQs 5 *10 11) [ 21.250959][ T1] ACPI: PCI Interrupt Link [LNKC] (IRQs 5 10 *11) [ 21.261352][ T1] ACPI: PCI Interrupt Link [LNKD] (IRQs 5 10 *11) [ 21.270341][ T1] ACPI: PCI Interrupt Link [LNKE] (IRQs 5 *10 11) [ 21.280700][ T1] ACPI: PCI Interrupt Link [LNKF] (IRQs 5 *10 11) [ 21.291489][ T1] ACPI: PCI Interrupt Link [LNKG] (IRQs 5 10 *11) [ 21.300879][ T1] ACPI: PCI Interrupt Link [LNKH] (IRQs 5 10 *11) [ 21.308281][ T1] ACPI: PCI Interrupt Link [GSIA] (IRQs *16) [ 21.317521][ T1] ACPI: PCI Interrupt Link [GSIB] (IRQs *17) [ 21.327402][ T1] ACPI: PCI Interrupt Link [GSIC] (IRQs *18) [ 21.337096][ T1] ACPI: PCI Interrupt Link [GSID] (IRQs *19) [ 21.347107][ T1] ACPI: PCI Interrupt Link [GSIE] (IRQs *20) [ 21.357840][ T1] ACPI: PCI Interrupt Link [GSIF] (IRQs *21) [ 21.367065][ T1] ACPI: PCI Interrupt Link [GSIG] (IRQs *22) [ 21.376993][ T1] ACPI: PCI Interrupt Link [GSIH] (IRQs *23) [ 21.574065][ T1] iommu: Default domain type: Translated [ 21.624654][ T1] pci 0000:00:01.0: vgaarb: setting as boot VGA device [ 21.626373][ T1] pci 0000:00:01.0: vgaarb: VGA device added: decodes=io+mem,owns=io+mem,locks=none [ 21.628683][ T1] pci 0000:00:01.0: vgaarb: bridge control possible [ 21.656373][ T1] vgaarb: loaded [ 22.215962][ T1] SCSI subsystem initialized [ 22.312098][ T1] ACPI: bus type USB registered [ 22.378021][ T1] usbcore: registered new interface driver usbfs [ 22.420560][ T1] usbcore: registered new interface driver hub [ 22.466752][ T1] usbcore: registered new device driver usb [ 22.530863][ T1] mc: Linux media interface: v0.10 [ 22.567777][ T1] videodev: Linux video capture interface: v2.00 [ 22.631638][ T1] pps_core: LinuxPPS API ver. 1 registered [ 22.666759][ T1] pps_core: Software ver. 5.3.6 - Copyright 2005-2007 Rodolfo Giometti [ 22.727231][ T1] PTP clock support registered [ 22.777117][ T1] EDAC MC: Ver: 3.0.0 [ 22.921683][ T1] Advanced Linux Sound Architecture Driver Initialized. [ 22.969856][ T1] PCI: Using ACPI for IRQ routing [ 28.198094][ T1] Bluetooth: Core ver 2.22 [ 28.280453][ T1] NET: Registered protocol family 31 [ 28.346160][ T1] Bluetooth: HCI device and connection manager initialized [ 28.427875][ T1] Bluetooth: HCI socket layer initialized [ 28.486734][ T1] Bluetooth: L2CAP socket layer initialized [ 28.538942][ T1] Bluetooth: SCO socket layer initialized [ 28.601507][ T1] NET: Registered protocol family 8 [ 28.657259][ T1] NET: Registered protocol family 20 [ 28.725699][ T1] NetLabel: Initializing [ 28.766813][ T1] NetLabel: domain hash size = 128 [ 28.806764][ T1] NetLabel: protocols = UNLABELED CIPSOv4 CALIPSO [ 28.868910][ T1] NetLabel: unlabeled traffic allowed by default [ 29.001065][ T1] nfc: nfc_init: NFC Core ver 0.1 [ 29.011515][ T1] NET: Registered protocol family 39 [ 29.104512][ T1] hpet0: at MMIO 0xfed00000, IRQs 2, 8, 0 [ 29.146917][ T1] hpet0: 3 comparators, 64-bit 100.000000 MHz counter [ 29.226373][ T1] clocksource: Switched to clocksource kvm-clock [ 33.164237][ T1] VFS: Disk quotas dquot_6.6.0 [ 33.264500][ T1] VFS: Dquot-cache hash table entries: 512 (order 0, 4096 bytes) [ 33.362218][ T1] FS-Cache: Loaded [ 33.409806][ T1] CacheFiles: Loaded [ 33.450961][ T1] TOMOYO: 2.6.0 [ 33.470324][ T1] Mandatory Access Control activated. [ 33.506117][ T1] pnp: PnP ACPI init [ 33.628248][ T1] pnp: PnP ACPI: found 6 devices [ 33.869022][ T1] clocksource: acpi_pm: mask: 0xffffff max_cycles: 0xffffff, max_idle_ns: 2085701024 ns [ 33.919443][ T1] pci_bus 0000:00: resource 4 [io 0x0000-0x0cf7 window] [ 33.949931][ T1] pci_bus 0000:00: resource 5 [io 0x0d00-0xffff window] [ 33.997339][ T1] pci_bus 0000:00: resource 6 [mem 0x000a0000-0x000bffff window] [ 34.044417][ T1] pci_bus 0000:00: resource 7 [mem 0x80000000-0xafffffff window] [ 34.107234][ T1] pci_bus 0000:00: resource 8 [mem 0xc0000000-0xfebfffff window] [ 34.157835][ T1] pci_bus 0000:00: resource 9 [mem 0x580000000-0xd7fffffff window] [ 34.210483][ T1] NET: Registered protocol family 2 [ 34.290906][ T1] tcp_listen_portaddr_hash hash table entries: 1024 (order: 4, 81920 bytes, vmalloc) [ 34.353738][ T1] TCP established hash table entries: 16384 (order: 5, 131072 bytes, vmalloc) [ 34.425820][ T1] TCP bind hash table entries: 16384 (order: 8, 1179648 bytes, vmalloc) [ 34.469576][ T1] TCP: Hash tables configured (established 16384 bind 16384) [ 34.583922][ T1] UDP hash table entries: 1024 (order: 5, 163840 bytes, vmalloc) [ 34.622828][ T1] UDP-Lite hash table entries: 1024 (order: 5, 163840 bytes, vmalloc) [ 34.681500][ T1] NET: Registered protocol family 1 [ 34.720568][ T1] RPC: Registered named UNIX socket transport module. [ 34.745157][ T1] RPC: Registered udp transport module. [ 34.772866][ T1] RPC: Registered tcp transport module. [ 34.802873][ T1] RPC: Registered tcp NFSv4.1 backchannel transport module. [ 34.872682][ T1] NET: Registered protocol family 44 [ 34.911461][ T1] pci 0000:00:01.0: Video device with shadowed ROM at [mem 0x000c0000-0x000dffff] [ 34.947886][ T1] pci 0000:00:01.0: pci_fixup_video+0x0/0x270 took 36179 usecs [ 35.020453][ T1] PCI Interrupt Link [GSIA] enabled at IRQ 16 [ 35.113265][ T1] pci 0000:00:1d.0: quirk_usb_early_handoff+0x0/0xfdf took 125093 usecs [ 35.178857][ T1] PCI Interrupt Link [GSIB] enabled at IRQ 17 [ 35.235718][ T1] pci 0000:00:1d.1: quirk_usb_early_handoff+0x0/0xfdf took 74118 usecs [ 35.312955][ T1] PCI Interrupt Link [GSIC] enabled at IRQ 18 [ 35.369000][ T1] pci 0000:00:1d.2: quirk_usb_early_handoff+0x0/0xfdf took 73489 usecs [ 35.442116][ T1] PCI Interrupt Link [GSID] enabled at IRQ 19 [ 35.522971][ T1] pci 0000:00:1d.7: quirk_usb_early_handoff+0x0/0xfdf took 102012 usecs [ 35.588891][ T1] PCI: CLS 0 bytes, default 64 [ 35.689463][ T1] PCI-DMA: Using software bounce buffering for IO (SWIOTLB) [ 35.727362][ T1] software IO TLB: mapped [mem 0x7ac00000-0x7ec00000] (64MB) [ 35.790689][ T1] kvm: no hardware support [ 35.815092][ T1] has_svm: not amd or hygon [ 35.839039][ T1] kvm: no hardware support [ 35.869207][ T1] clocksource: tsc: mask: 0xffffffffffffffff max_cycles: 0x1cd4e75f6d2, max_idle_ns: 440795251066 ns [ 35.944620][ T1] clocksource: Switched to clocksource tsc [ 36.004476][ T1] mce: Machine check injector initialized [ 36.071611][ T1] check: Scanning for low memory corruption every 60 seconds [ 36.834111][ T1] Initialise system trusted keyrings [ 36.901505][ T1] workingset: timestamp_bits=40 max_order=19 bucket_order=0 [ 36.974007][ T1] zbud: loaded [ 37.068430][ T1] DLM installed [ 37.106023][ T1] squashfs: version 4.0 (2009/01/31) Phillip Lougher [ 37.195992][ T1] FS-Cache: Netfs 'nfs' registered for caching [ 37.250090][ T1] NFS: Registering the id_resolver key type [ 37.286169][ T1] Key type id_resolver registered [ 37.323589][ T1] Key type id_legacy registered [ 37.352931][ T1] nfs4filelayout_init: NFSv4 File Layout Driver Registering... [ 37.408937][ T1] Installing knfsd (copyright (C) 1996 okir@monad.swb.de). [ 37.501157][ T1] FS-Cache: Netfs 'cifs' registered for caching [ 37.565075][ T1] Key type cifs.spnego registered [ 37.608481][ T1] Key type cifs.idmap registered [ 37.645513][ T1] ntfs: driver 2.1.32 [Flags: R/W]. [ 37.694800][ T1] fuse: init (API version 7.31) [ 37.744793][ T1] JFS: nTxBlock = 8192, nTxLock = 65536 [ 38.022381][ T1] SGI XFS with ACLs, security attributes, realtime, quota, no debug enabled [ 38.166135][ T1] 9p: Installing v9fs 9p2000 file system support [ 38.223680][ T1] FS-Cache: Netfs '9p' registered for caching [ 38.290537][ T1] ocfs2: Registered cluster interface o2cb [ 38.350608][ T1] ocfs2: Registered cluster interface user [ 38.402938][ T1] OCFS2 User DLM kernel interface loaded [ 38.561702][ T1] gfs2: GFS2 installed [ 38.626119][ T1] FS-Cache: Netfs 'ceph' registered for caching [ 38.671500][ T1] ceph: loaded (mds proto 32) [ 38.803610][ T1] NET: Registered protocol family 38 [ 38.848785][ T1] async_tx: api initialized (async) [ 38.887274][ T1] Key type asymmetric registered [ 38.927910][ T1] Asymmetric key parser 'x509' registered [ 38.974938][ T1] Asymmetric key parser 'pkcs8' registered [ 39.018608][ T1] Key type pkcs7_test registered [ 39.051112][ T1] Asymmetric key parser 'tpm_parser' registered [ 39.092424][ T1] Block layer SCSI generic (bsg) driver version 0.4 loaded (major 243) [ 39.161990][ T1] io scheduler mq-deadline registered [ 39.193618][ T1] io scheduler kyber registered [ 39.226126][ T1] io scheduler bfq registered [ 39.291230][ T1] hgafb: HGA card not detected. [ 39.327367][ T1] hgafb: probe of hgafb.0 failed with error -22 [ 39.372912][ T1] usbcore: registered new interface driver udlfb [ 39.422355][ T1] uvesafb: failed to execute /sbin/v86d [ 39.457733][ T1] uvesafb: make sure that the v86d helper is installed and executable [ 39.501726][ T1] uvesafb: Getting VBE info block failed (eax=0x4f00, err=-2) [ 39.537951][ T1] uvesafb: vbe_init() failed with -22 [ 39.567589][ T1] uvesafb: probe of uvesafb.0 failed with error -22 [ 39.598331][ T1] vga16fb: mapped to 0x00000000a501e196 [ 73.775437][ T1] Console: switching to colour frame buffer device 80x30 [ 104.579154][ T1] fb0: VGA16 VGA frame buffer device [ 104.775816][ T1] input: Power Button as /devices/LNXSYSTM:00/LNXPWRBN:00/input/input0 [ 104.779194][ T1994] kworker/u17:0 (1994) used greatest stack depth: 26896 bytes left [ 104.840328][ T1] ACPI: Power Button [PWRF] [ 105.194776][ T1] ioatdma: Intel(R) QuickData Technology Driver 5.00 [ 105.266760][ T1] PCI Interrupt Link [GSIF] enabled at IRQ 21 [ 105.375123][ T1] PCI Interrupt Link [GSIH] enabled at IRQ 23 [ 106.337491][ T1] N_HDLC line discipline registered with maxframe=4096 [ 106.385456][ T1] Serial: 8250/16550 driver, 4 ports, IRQ sharing enabled [ 106.472654][ T1] 00:05: ttyS0 at I/O 0x3f8 (irq = 4, base_baud = 115200) is a 16550A [ 106.609046][ T1] Cyclades driver 2.6 [ 106.711329][ T1] Initializing Nozomi driver 2.1d [ 106.724662][ T1] RocketPort device driver module, version 2.09, 12-June-2003 [ 106.795114][ T1] No rocketport ports found; unloading driver [ 106.869617][ T1] Non-volatile memory driver v1.3 [ 106.896223][ T1] Linux agpgart interface v0.103 [ 106.983892][ T1] [drm] Initialized vgem 1.0.0 20120112 for vgem on minor 0 [ 107.035513][ T1] [drm] Supports vblank timestamp caching Rev 2 (21.10.2013). [ 107.132338][ T1] [drm] Initialized vkms 1.0.0 20180514 for vkms on minor 1 [ 107.194112][ T1] usbcore: registered new interface driver udl [ 107.260740][ T1] [drm] pci: virtio-vga detected at 0000:00:01.0 [ 107.302025][ T1] fb0: switching to virtiodrmfb from VGA16 VGA [ 120.346533][ T1] Console: switching to colour VGA+ 80x25 [ 120.472677][ T1] virtio-pci 0000:00:01.0: vgaarb: deactivate vga console [ 120.689491][ T1] Console: switching to colour dummy device 80x25 [ 120.770314][ T1] [drm] features: -virgl +edid [ 120.960282][ T1] [drm] number of scanouts: 1 [ 120.988192][ T1] [drm] number of cap sets: 0 [ 121.195825][ T1] [drm] Initialized virtio_gpu 0.1.0 0 for virtio0 on minor 2 [ 121.406723][ T1] ================================================================== [ 121.406723][ T1] BUG: KASAN: slab-out-of-bounds in virtio_gpu_object_create+0x9f3/0xaa0 [ 121.406723][ T1] Write of size 8 at addr ffff88802872f388 by task swapper/0/1 [ 121.406723][ T1] [ 121.406723][ T1] CPU: 1 PID: 1 Comm: swapper/0 Not tainted 5.6.0-syzkaller #0 [ 121.406723][ T1] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS rel-1.12.0-59-gc9ba5276e321-prebuilt.qemu.org 04/01/2014 [ 121.406723][ T1] Call Trace: [ 121.406723][ T1] dump_stack+0x188/0x20d [ 121.406723][ T1] print_address_description.constprop.0.cold+0xd3/0x315 [ 121.406723][ T1] ? virtio_gpu_object_create+0x9f3/0xaa0 [ 121.406723][ T1] __kasan_report.cold+0x35/0x4d [ 121.406723][ T1] ? __sg_alloc_table_from_pages+0x601/0x610 [ 121.406723][ T1] ? virtio_gpu_object_create+0x9f3/0xaa0 [ 121.406723][ T1] ? virtio_gpu_object_create+0x9f3/0xaa0 [ 121.406723][ T1] kasan_report+0x33/0x50 [ 121.406723][ T1] virtio_gpu_object_create+0x9f3/0xaa0 [ 121.406723][ T1] ? bus_add_driver+0x4a2/0x5a0 [ 121.406723][ T1] ? driver_register+0x1c4/0x330 [ 121.406723][ T1] ? do_one_initcall+0x10a/0x7d0 [ 121.406723][ T1] virtio_gpu_gem_create+0xaa/0x1d0 [ 121.406723][ T1] ? virtio_gpu_init.cold+0xce5/0xce5 [ 121.406723][ T1] ? find_held_lock+0x2d/0x110 [ 121.406723][ T1] ? mark_lock+0x12b/0xf10 [ 121.406723][ T1] ? find_held_lock+0x2d/0x110 [ 121.406723][ T1] virtio_gpu_mode_dumb_create+0x21e/0x360 [ 121.406723][ T1] ? virtio_gpu_gem_create+0x1d0/0x1d0 [ 121.406723][ T1] ? drm_client_framebuffer_create+0x108/0x770 [ 121.406723][ T1] ? kmem_cache_alloc_trace+0x390/0x7d0 [ 121.406723][ T1] drm_mode_create_dumb+0x27c/0x300 [ 121.406723][ T1] drm_client_framebuffer_create+0x1b7/0x770 [ 121.406723][ T1] ? drm_client_framebuffer_delete+0x1a0/0x1a0 [ 121.406723][ T1] ? mutex_trylock+0x2c0/0x2c0 [ 121.406723][ T1] ? find_held_lock+0x2d/0x110 [ 121.406723][ T1] ? drm_dev_dbg+0xb4/0x17b [ 121.406723][ T1] ? __sanitizer_cov_trace_switch+0x45/0x70 [ 121.406723][ T1] drm_fb_helper_generic_probe+0x1e4/0x810 [ 121.406723][ T1] __drm_fb_helper_initial_config_and_unlock+0xb56/0x11e0 [ 121.406723][ T1] ? __mutex_unlock_slowpath+0xe2/0x660 [ 121.406723][ T1] ? drm_setup_crtcs_fb+0x6f0/0x6f0 [ 121.406723][ T1] drm_fbdev_client_hotplug+0x30f/0x580 [ 121.406723][ T1] drm_fbdev_generic_setup+0x18b/0x295 [ 121.406723][ T1] virtio_gpu_probe+0x28f/0x2de [ 121.406723][ T1] ? virtio_gpu_remove+0x60/0x60 [ 122.707465][ T1] ? ___might_sleep+0xb0/0x2b0 [ 122.707465][ T1] ? ioread8+0x89/0xa0 [ 122.707465][ T1] ? vp_modern_find_vqs+0x170/0x170 [ 122.707465][ T1] ? vp_get_status+0x37/0x40 [ 122.707465][ T1] ? ioread8+0x89/0xa0 [ 122.707465][ T1] virtio_dev_probe+0x463/0x710 [ 122.707465][ T1] ? virtio_device_restore+0x1f0/0x1f0 [ 122.707465][ T1] really_probe+0x281/0x6d0 [ 122.707465][ T1] driver_probe_device+0x104/0x210 [ 122.707465][ T1] device_driver_attach+0x108/0x140 [ 122.707465][ T1] __driver_attach+0xda/0x240 [ 122.707465][ T1] ? device_driver_attach+0x140/0x140 [ 122.707465][ T1] bus_for_each_dev+0x14b/0x1d0 [ 122.707465][ T1] ? subsys_dev_iter_exit+0x20/0x20 [ 122.707465][ T1] bus_add_driver+0x4a2/0x5a0 [ 122.707465][ T1] driver_register+0x1c4/0x330 [ 122.707465][ T1] ? bochs_init+0x86/0x86 [ 122.707465][ T1] do_one_initcall+0x10a/0x7d0 [ 122.707465][ T1] ? perf_trace_initcall_level+0x420/0x420 [ 122.707465][ T1] ? retint_kernel+0x2b/0x2b [ 122.707465][ T1] kernel_init_freeable+0x501/0x5ae [ 122.707465][ T1] ? rest_init+0x365/0x365 [ 122.707465][ T1] kernel_init+0xd/0x1bb [ 122.707465][ T1] ret_from_fork+0x24/0x30 [ 122.707465][ T1] [ 122.707465][ T1] Allocated by task 1: [ 122.707465][ T1] save_stack+0x1b/0x80 [ 122.707465][ T1] __kasan_kmalloc.constprop.0+0xbf/0xd0 [ 122.707465][ T1] kmem_cache_alloc_trace+0x153/0x7d0 [ 122.707465][ T1] virtio_gpu_create_object+0x3c/0xe0 [ 122.707465][ T1] drm_gem_shmem_create+0x83/0x330 [ 122.707465][ T1] virtio_gpu_object_create+0xa5/0xaa0 [ 122.707465][ T1] virtio_gpu_gem_create+0xaa/0x1d0 [ 122.707465][ T1] virtio_gpu_mode_dumb_create+0x21e/0x360 [ 122.707465][ T1] drm_mode_create_dumb+0x27c/0x300 [ 122.707465][ T1] drm_client_framebuffer_create+0x1b7/0x770 [ 122.707465][ T1] drm_fb_helper_generic_probe+0x1e4/0x810 [ 122.707465][ T1] __drm_fb_helper_initial_config_and_unlock+0xb56/0x11e0 [ 122.707465][ T1] drm_fbdev_client_hotplug+0x30f/0x580 [ 122.707465][ T1] drm_fbdev_generic_setup+0x18b/0x295 [ 122.707465][ T1] virtio_gpu_probe+0x28f/0x2de [ 122.707465][ T1] virtio_dev_probe+0x463/0x710 [ 122.707465][ T1] really_probe+0x281/0x6d0 [ 122.707465][ T1] driver_probe_device+0x104/0x210 [ 122.707465][ T1] device_driver_attach+0x108/0x140 [ 122.707465][ T1] __driver_attach+0xda/0x240 [ 122.707465][ T1] bus_for_each_dev+0x14b/0x1d0 [ 122.707465][ T1] bus_add_driver+0x4a2/0x5a0 [ 122.707465][ T1] driver_register+0x1c4/0x330 [ 122.707465][ T1] do_one_initcall+0x10a/0x7d0 [ 122.707465][ T1] kernel_init_freeable+0x501/0x5ae [ 122.707465][ T1] kernel_init+0xd/0x1bb [ 122.707465][ T1] ret_from_fork+0x24/0x30 [ 122.707465][ T1] [ 122.707465][ T1] Freed by task 0: [ 122.707465][ T1] (stack is not available) [ 122.707465][ T1] [ 122.707465][ T1] The buggy address belongs to the object at ffff88802872f000 [ 122.707465][ T1] which belongs to the cache kmalloc-1k of size 1024 [ 122.707465][ T1] The buggy address is located 904 bytes inside of [ 122.707465][ T1] 1024-byte region [ffff88802872f000, ffff88802872f400) [ 122.707465][ T1] The buggy address belongs to the page: [ 122.707465][ T1] page:ffffea0000a1cbc0 refcount:1 mapcount:0 mapping:00000000eb57889b index:0x0 [ 122.707465][ T1] flags: 0xfffe0000000200(slab) [ 122.707465][ T1] raw: 00fffe0000000200 ffffea0000a1f3c8 ffff88802c801850 ffff88802c800c40 [ 122.707465][ T1] raw: 0000000000000000 ffff88802872f000 0000000100000002 0000000000000000 [ 122.707465][ T1] page dumped because: kasan: bad access detected [ 122.707465][ T1] [ 122.707465][ T1] Memory state around the buggy address: [ 122.707465][ T1] ffff88802872f280: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 122.707465][ T1] ffff88802872f300: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 122.707465][ T1] >ffff88802872f380: 00 fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 122.707465][ T1] ^ [ 122.707465][ T1] ffff88802872f400: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 122.707465][ T1] ffff88802872f480: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 122.707465][ T1] ================================================================== [ 122.707465][ T1] Disabling lock debugging due to kernel taint [ 124.698452][ T1] Kernel panic - not syncing: panic_on_warn set ... [ 124.707639][ T1] CPU: 1 PID: 1 Comm: swapper/0 Tainted: G B 5.6.0-syzkaller #0 [ 124.707639][ T1] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS rel-1.12.0-59-gc9ba5276e321-prebuilt.qemu.org 04/01/2014 [ 124.707639][ T1] Call Trace: [ 124.707639][ T1] dump_stack+0x188/0x20d [ 124.707639][ T1] panic+0x2e3/0x75c [ 124.707639][ T1] ? add_taint.cold+0x16/0x16 [ 124.707639][ T1] ? preempt_schedule_common+0x5e/0xc0 [ 124.707639][ T1] ? virtio_gpu_object_create+0x9f3/0xaa0 [ 124.707639][ T1] ? preempt_schedule_thunk+0x16/0x18 [ 124.707639][ T1] ? trace_hardirqs_on+0x55/0x220 [ 124.707639][ T1] ? virtio_gpu_object_create+0x9f3/0xaa0 [ 124.707639][ T1] end_report+0x43/0x49 [ 124.707639][ T1] __kasan_report.cold+0xd/0x4d [ 124.707639][ T1] ? __sg_alloc_table_from_pages+0x601/0x610 [ 124.707639][ T1] ? virtio_gpu_object_create+0x9f3/0xaa0 [ 124.707639][ T1] ? virtio_gpu_object_create+0x9f3/0xaa0 [ 124.707639][ T1] kasan_report+0x33/0x50 [ 124.707639][ T1] virtio_gpu_object_create+0x9f3/0xaa0 [ 124.707639][ T1] ? bus_add_driver+0x4a2/0x5a0 [ 124.707639][ T1] ? driver_register+0x1c4/0x330 [ 124.707639][ T1] ? do_one_initcall+0x10a/0x7d0 [ 124.707639][ T1] virtio_gpu_gem_create+0xaa/0x1d0 [ 124.707639][ T1] ? virtio_gpu_init.cold+0xce5/0xce5 [ 124.707639][ T1] ? find_held_lock+0x2d/0x110 [ 124.707639][ T1] ? mark_lock+0x12b/0xf10 [ 124.707639][ T1] ? find_held_lock+0x2d/0x110 [ 124.707639][ T1] virtio_gpu_mode_dumb_create+0x21e/0x360 [ 124.707639][ T1] ? virtio_gpu_gem_create+0x1d0/0x1d0 [ 124.707639][ T1] ? drm_client_framebuffer_create+0x108/0x770 [ 124.707639][ T1] ? kmem_cache_alloc_trace+0x390/0x7d0 [ 124.707639][ T1] drm_mode_create_dumb+0x27c/0x300 [ 124.707639][ T1] drm_client_framebuffer_create+0x1b7/0x770 [ 124.707639][ T1] ? drm_client_framebuffer_delete+0x1a0/0x1a0 [ 124.707639][ T1] ? mutex_trylock+0x2c0/0x2c0 [ 124.707639][ T1] ? find_held_lock+0x2d/0x110 [ 124.707639][ T1] ? drm_dev_dbg+0xb4/0x17b [ 124.707639][ T1] ? __sanitizer_cov_trace_switch+0x45/0x70 [ 124.707639][ T1] drm_fb_helper_generic_probe+0x1e4/0x810 [ 124.707639][ T1] __drm_fb_helper_initial_config_and_unlock+0xb56/0x11e0 [ 124.707639][ T1] ? __mutex_unlock_slowpath+0xe2/0x660 [ 124.707639][ T1] ? drm_setup_crtcs_fb+0x6f0/0x6f0 [ 124.707639][ T1] drm_fbdev_client_hotplug+0x30f/0x580 [ 124.707639][ T1] drm_fbdev_generic_setup+0x18b/0x295 [ 124.707639][ T1] virtio_gpu_probe+0x28f/0x2de [ 124.707639][ T1] ? virtio_gpu_remove+0x60/0x60 [ 124.707639][ T1] ? ___might_sleep+0xb0/0x2b0 [ 124.707639][ T1] ? ioread8+0x89/0xa0 [ 124.707639][ T1] ? vp_modern_find_vqs+0x170/0x170 [ 124.707639][ T1] ? vp_get_status+0x37/0x40 [ 124.707639][ T1] ? ioread8+0x89/0xa0 [ 124.707639][ T1] virtio_dev_probe+0x463/0x710 [ 124.707639][ T1] ? virtio_device_restore+0x1f0/0x1f0 [ 124.707639][ T1] really_probe+0x281/0x6d0 [ 124.707639][ T1] driver_probe_device+0x104/0x210 [ 124.707639][ T1] device_driver_attach+0x108/0x140 [ 124.707639][ T1] __driver_attach+0xda/0x240 [ 124.707639][ T1] ? device_driver_attach+0x140/0x140 [ 124.707639][ T1] bus_for_each_dev+0x14b/0x1d0 [ 124.707639][ T1] ? subsys_dev_iter_exit+0x20/0x20 [ 124.707639][ T1] bus_add_driver+0x4a2/0x5a0 [ 124.707639][ T1] driver_register+0x1c4/0x330 [ 124.707639][ T1] ? bochs_init+0x86/0x86 [ 124.707639][ T1] do_one_initcall+0x10a/0x7d0 [ 124.707639][ T1] ? perf_trace_initcall_level+0x420/0x420 [ 124.707639][ T1] ? retint_kernel+0x2b/0x2b [ 124.707639][ T1] kernel_init_freeable+0x501/0x5ae [ 124.707639][ T1] ? rest_init+0x365/0x365 [ 124.707639][ T1] kernel_init+0xd/0x1bb [ 124.707639][ T1] ret_from_fork+0x24/0x30 [ 124.707639][ T1] Kernel Offset: disabled [ 124.707639][ T1] Rebooting in 86400 seconds..