[ 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 [ 0.000083][ T0] kvm-clock: cpu 0, msr bbb7001, primary cpu clock [ 0.000083][ T0] kvm-clock: using sched offset of 16743791997 cycles [ 0.018782][ T0] clocksource: kvm-clock: mask: 0xffffffffffffffff max_cycles: 0x1cd42e4dffb, max_idle_ns: 881590591483 ns [ 0.061309][ T0] tsc: Detected 2000.196 MHz processor [ 0.091221][ T0] last_pfn = 0x7ffdd max_arch_pfn = 0x400000000 [ 0.115185][ T0] x86/PAT: Configuration [0-7]: WB WC UC- UC WB WP UC- WT [ 0.150426][ T0] found SMP MP-table at [mem 0x000f5a40-0x000f5a4f] [ 0.173180][ T0] check: Scanning 1 areas for low memory corruption [ 0.209675][ T0] ACPI: Early table checksum verification disabled [ 0.243735][ T0] ACPI: RSDP 0x00000000000F5870 000014 (v00 BOCHS ) [ 0.268451][ T0] ACPI: RSDT 0x000000007FFE1F9D 000040 (v01 BOCHS BXPCRSDT 00000001 BXPC 00000001) [ 0.296316][ T0] ACPI: FACP 0x000000007FFE1860 0000F4 (v03 BOCHS BXPCFACP 00000001 BXPC 00000001) [ 0.327763][ T0] ACPI: DSDT 0x000000007FFDF040 002820 (v01 BOCHS BXPCDSDT 00000001 BXPC 00000001) [ 0.354531][ T0] ACPI: FACS 0x000000007FFDF000 000040 [ 0.372218][ T0] ACPI: APIC 0x000000007FFE1954 0000B0 (v01 BOCHS BXPCAPIC 00000001 BXPC 00000001) [ 0.404943][ T0] ACPI: HPET 0x000000007FFE1A04 000038 (v01 BOCHS BXPCHPET 00000001 BXPC 00000001) [ 0.474492][ T0] ACPI: SRAT 0x000000007FFE1A3C 000178 (v01 BOCHS BXPCSRAT 00000001 BXPC 00000001) [ 0.519612][ T0] ACPI: MCFG 0x000000007FFE1BB4 00003C (v01 BOCHS BXPCMCFG 00000001 BXPC 00000001) [ 0.546394][ T0] ACPI: SSDT 0x000000007FFE1BF0 0002CD (v01 BOCHS NVDIMM 00000001 BXPC 00000001) [ 0.570112][ T0] ACPI: NFIT 0x000000007FFE1EBD 0000E0 (v01 BOCHS BXPCNFIT 00000001 BXPC 00000001) [ 0.604586][ T0] SRAT: PXM 0 -> APIC 0x00 -> Node 0 [ 0.615265][ T0] SRAT: PXM 0 -> APIC 0x01 -> Node 0 [ 0.628980][ T0] SRAT: PXM 0 -> APIC 0x02 -> Node 0 [ 0.641660][ T0] SRAT: PXM 0 -> APIC 0x03 -> Node 0 [ 0.652156][ T0] SRAT: PXM 1 -> APIC 0x04 -> Node 1 [ 0.664303][ T0] SRAT: PXM 1 -> APIC 0x05 -> Node 1 [ 0.681690][ T0] SRAT: PXM 1 -> APIC 0x06 -> Node 1 [ 0.698295][ T0] SRAT: PXM 1 -> APIC 0x07 -> Node 1 [ 0.728540][ T0] ACPI: SRAT: Node 0 PXM 0 [mem 0x00000000-0x0009ffff] [ 0.761556][ T0] ACPI: SRAT: Node 0 PXM 0 [mem 0x00100000-0x3fffffff] [ 0.793172][ T0] ACPI: SRAT: Node 1 PXM 1 [mem 0x40000000-0x7fffffff] [ 0.820827][ T0] ACPI: SRAT: Node 1 PXM 1 [mem 0x100000000-0x57fffffff] hotplug [ 0.848843][ T0] NUMA: Node 0 [mem 0x00000000-0x0009ffff] + [mem 0x00100000-0x3fffffff] -> [mem 0x00000000-0x3fffffff] [ 0.895394][ T0] Faking node 0 at [mem 0x0000000000000000-0x000000003fffffff] (1024MB) [ 0.934643][ T0] Faking node 1 at [mem 0x0000000040000000-0x000000007ffdcfff] (1023MB) [ 0.976651][ T0] NODE_DATA(0) allocated [mem 0x3fffb000-0x3fffffff] [ 1.018824][ T0] NODE_DATA(1) allocated [mem 0x7ffd7000-0x7ffdbfff] [ 1.129816][ T0] Zone ranges: [ 1.141700][ T0] DMA [mem 0x0000000000001000-0x0000000000ffffff] [ 1.158518][ T0] DMA32 [mem 0x0000000001000000-0x000000007ffdcfff] [ 1.172777][ T0] Normal empty [ 1.182008][ T0] Device empty [ 1.189232][ T0] Movable zone start for each node [ 1.203004][ T0] Early memory node ranges [ 1.216135][ T0] node 0: [mem 0x0000000000001000-0x000000000009efff] [ 1.238815][ T0] node 0: [mem 0x0000000000100000-0x000000003fffffff] [ 1.254253][ T0] node 1: [mem 0x0000000040000000-0x000000007ffdcfff] [ 1.269744][ T0] Zeroed struct page in unavailable ranges: 133 pages [ 1.269795][ T0] Initmem setup node 0 [mem 0x0000000000001000-0x000000003fffffff] [ 1.316272][ T0] Initmem setup node 1 [mem 0x0000000040000000-0x000000007ffdcfff] [ 3.203343][ T0] kasan: KernelAddressSanitizer initialized [ 3.276224][ T0] ACPI: PM-Timer IO Port: 0x608 [ 3.306460][ T0] ACPI: LAPIC_NMI (acpi_id[0xff] dfl dfl lint[0x1]) [ 3.344377][ T0] IOAPIC[0]: apic_id 0, version 17, address 0xfec00000, GSI 0-23 [ 3.386609][ T0] ACPI: INT_SRC_OVR (bus 0 bus_irq 0 global_irq 2 dfl dfl) [ 3.421406][ T0] ACPI: INT_SRC_OVR (bus 0 bus_irq 5 global_irq 5 high level) [ 3.457299][ T0] ACPI: INT_SRC_OVR (bus 0 bus_irq 9 global_irq 9 high level) [ 3.491409][ T0] ACPI: INT_SRC_OVR (bus 0 bus_irq 10 global_irq 10 high level) [ 3.515203][ T0] ACPI: INT_SRC_OVR (bus 0 bus_irq 11 global_irq 11 high level) [ 3.547651][ T0] Using ACPI (MADT) for SMP configuration information [ 3.572090][ T0] ACPI: HPET id: 0x8086a201 base: 0xfed00000 [ 3.601309][ T0] smpboot: Allowing 8 CPUs, 4 hotplug CPUs [ 3.629494][ T0] KVM setup pv remote TLB flush [ 3.648352][ T0] PM: hibernation: Registered nosave memory: [mem 0x00000000-0x00000fff] [ 3.668550][ T0] PM: hibernation: Registered nosave memory: [mem 0x0009f000-0x0009ffff] [ 3.689053][ T0] PM: hibernation: Registered nosave memory: [mem 0x000a0000-0x000effff] [ 3.711527][ T0] PM: hibernation: Registered nosave memory: [mem 0x000f0000-0x000fffff] [ 3.746016][ T0] [mem 0xc0000000-0xfed1bfff] available for PCI devices [ 3.765041][ T0] Booting paravirtualized kernel on KVM [ 3.786923][ T0] clocksource: refined-jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604462750000 ns [ 3.910380][ T0] setup_percpu: NR_CPUS:64 nr_cpumask_bits:64 nr_cpu_ids:8 nr_node_ids:2 [ 3.949490][ T0] percpu: Embedded 67 pages/cpu s233544 r8192 d32696 u1048576 [ 3.981964][ T0] KVM setup async PF for cpu 0 [ 3.997309][ T0] kvm-stealtime: cpu 0, msr 2ce22a40 [ 4.015404][ T0] PV qspinlock hash table entries: 256 (order: 0, 4096 bytes, linear) [ 4.046641][ T0] Built 2 zonelists, mobility grouping on. Total pages: 515942 [ 4.073730][ T0] Policy zone: DMA32 [ 4.083786][ 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 [ 4.335233][ T0] mem auto-init: stack:off, heap alloc:on, heap free:off [ 4.951135][ T0] Memory: 1505664K/2096620K available (114695K kernel code, 17079K rwdata, 21332K rodata, 2764K init, 25052K bss, 590956K reserved, 0K cma-reserved) [ 5.285434][ T0] Running RCU self tests [ 5.324336][ T0] rcu: Preemptible hierarchical RCU implementation. [ 5.376697][ T0] rcu: RCU lockdep checking is enabled. [ 5.417268][ T0] rcu: RCU restricting CPUs from NR_CPUS=64 to nr_cpu_ids=8. [ 5.471179][ T0] rcu: RCU callback double-/use-after-free debug enabled. [ 5.522168][ T0] Tasks RCU enabled. [ 5.549451][ T0] rcu: RCU calculated value of scheduler-enlistment delay is 10 jiffies. [ 5.602919][ T0] rcu: Adjusting geometry for rcu_fanout_leaf=16, nr_cpu_ids=8 [ 5.695287][ T0] NR_IRQS: 4352, nr_irqs: 488, preallocated irqs: 16 [ 5.808731][ T0] random: get_random_bytes called from start_kernel+0x516/0x8a1 with crng_init=0 [ 6.336325][ T0] Console: colour VGA+ 80x25 [ 6.409492][ T0] printk: console [ttyS0] enabled [ 6.409492][ T0] printk: console [ttyS0] enabled [ 6.452011][ T0] printk: bootconsole [earlyser0] disabled [ 6.452011][ T0] printk: bootconsole [earlyser0] disabled [ 6.496518][ T0] Lock dependency validator: Copyright (c) 2006 Red Hat, Inc., Ingo Molnar [ 6.530694][ T0] ... MAX_LOCKDEP_SUBCLASSES: 8 [ 6.547096][ T0] ... MAX_LOCK_DEPTH: 48 [ 6.567388][ T0] ... MAX_LOCKDEP_KEYS: 8192 [ 6.586766][ T0] ... CLASSHASH_SIZE: 4096 [ 6.606981][ T0] ... MAX_LOCKDEP_ENTRIES: 32768 [ 6.634899][ T0] ... MAX_LOCKDEP_CHAINS: 65536 [ 6.660122][ T0] ... CHAINHASH_SIZE: 32768 [ 6.689998][ T0] memory used by lock dependency info: 6301 kB [ 6.720163][ T0] memory used for stack traces: 4224 kB [ 6.740936][ T0] per task-struct memory footprint: 1920 bytes [ 6.783033][ T0] mempolicy: Enabling automatic NUMA balancing. Configure with numa_balancing= or the kernel.numa_balancing sysctl [ 6.845101][ T0] ACPI: Core revision 20200214 [ 6.883756][ T0] clocksource: hpet: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604467 ns [ 6.960767][ T0] APIC: Switch to symmetric I/O mode setup [ 7.001882][ T0] x2apic enabled [ 7.044552][ T0] Switched APIC routing to physical x2apic. [ 7.072623][ T0] KVM setup pv IPIs [ 7.190685][ T0] ..TIMER: vector=0x30 apic1=0 pin1=2 apic2=-1 pin2=-1 [ 7.224623][ T0] clocksource: tsc-early: mask: 0xffffffffffffffff max_cycles: 0x1cd4e75f6d2, max_idle_ns: 440795251066 ns [ 7.280801][ T0] Calibrating delay loop (skipped) preset value.. 4000.39 BogoMIPS (lpj=20001960) [ 7.292455][ T0] pid_max: default: 32768 minimum: 301 [ 7.313694][ T0] LSM: Security Framework initializing [ 7.329886][ T0] LSM: security= is ignored because it is superseded by lsm= [ 7.340933][ T0] Yama: becoming mindful. [ 7.363424][ T0] SELinux: Initializing. [ 7.379567][ T0] TOMOYO Linux initialized [ 7.410891][ T0] Dentry cache hash table entries: 262144 (order: 9, 2097152 bytes, vmalloc) [ 7.434149][ T0] Inode-cache hash table entries: 131072 (order: 8, 1048576 bytes, vmalloc) [ 7.440704][ T0] Mount-cache hash table entries: 4096 (order: 3, 32768 bytes, vmalloc) [ 7.450149][ T0] Mountpoint-cache hash table entries: 4096 (order: 3, 32768 bytes, vmalloc) [ 7.680039][ T0] x86/cpu: User Mode Instruction Prevention (UMIP) activated [ 7.721313][ T0] Last level iTLB entries: 4KB 0, 2MB 0, 4MB 0 [ 7.739630][ T0] Last level dTLB entries: 4KB 0, 2MB 0, 4MB 0, 1GB 0 [ 7.760093][ T0] Spectre V1 : Mitigation: usercopy/swapgs barriers and __user pointer sanitization [ 7.769829][ T0] Spectre V2 : Spectre mitigation: kernel not compiled with retpoline; no mitigation available! [ 7.779537][ T0] Speculative Store Bypass: Mitigation: Speculative Store Bypass disabled via prctl [ 7.802078][ T0] TAA: Mitigation: Clear CPU buffers [ 7.819690][ T0] MDS: Mitigation: Clear CPU buffers [ 7.991168][ T0] Freeing SMP alternatives memory: 96K [ 8.429446][ T1] smpboot: CPU0: Intel(R) Xeon(R) CPU @ 2.00GHz (family: 0x6, model: 0x55, stepping: 0x3) [ 8.477084][ T1] Performance Events: unsupported p6 CPU model 85 no PMU driver, software events only. [ 8.496315][ T1] rcu: Hierarchical SRCU implementation. [ 8.527171][ T1] NMI watchdog: Perf NMI watchdog permanently disabled [ 8.557060][ T1] smp: Bringing up secondary CPUs ... [ 8.597075][ T1] x86: Booting SMP configuration: [ 8.599916][ T1] .... node #0, CPUs: #1 [ 1.400527][ T0] kvm-clock: cpu 1, msr bbb7041, secondary cpu clock [ 8.689828][ T15] KVM setup async PF for cpu 1 [ 8.689828][ T15] kvm-stealtime: cpu 1, msr 2cf22a40 [ 8.731804][ 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. [ 8.741206][ 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. [ 8.776350][ T1] #2 [ 1.400527][ T0] kvm-clock: cpu 2, msr bbb7081, secondary cpu clock [ 8.844413][ T20] KVM setup async PF for cpu 2 [ 8.849446][ T20] kvm-stealtime: cpu 2, msr 2d022a40 [ 8.886587][ T1] #3 [ 1.400527][ T0] kvm-clock: cpu 3, msr bbb70c1, secondary cpu clock [ 8.938193][ T25] KVM setup async PF for cpu 3 [ 8.939446][ T25] kvm-stealtime: cpu 3, msr 2d122a40 [ 8.970071][ T1] smp: Brought up 2 nodes, 4 CPUs [ 8.979736][ T1] smpboot: Max logical packages: 2 [ 8.989590][ T1] smpboot: Total of 4 processors activated (16001.56 BogoMIPS) [ 9.059027][ T1] devtmpfs: initialized [ 9.072473][ T1] x86/mm: Memory block size: 128MB [ 9.174049][ T1] clocksource: jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604462750000 ns [ 9.174049][ T33] kworker/u17:1 (33) used greatest stack depth: 27312 bytes left [ 9.185403][ T1] futex hash table entries: 2048 (order: 6, 262144 bytes, vmalloc) [ 9.214476][ T1] xor: automatically using best checksumming function avx [ 9.230143][ T1] PM: RTC time: 02:08:27, date: 2020-04-15 [ 9.242556][ T1] thermal_sys: Registered thermal governor 'step_wise' [ 9.242563][ T1] thermal_sys: Registered thermal governor 'user_space' [ 9.275790][ T1] NET: Registered protocol family 16 [ 9.304370][ T1] audit: initializing netlink subsys (disabled) [ 9.311711][ T38] audit: type=2000 audit(1586916506.580:1): state=initialized audit_enabled=0 res=1 [ 9.339610][ T1] cpuidle: using governor menu [ 9.361213][ T1] ACPI: bus type PCI registered [ 9.378326][ T1] dca service started, version 1.12.1 [ 9.383513][ T1] PCI: MMCONFIG for domain 0000 [bus 00-ff] at [mem 0xb0000000-0xbfffffff] (base 0xb0000000) [ 9.390779][ T1] PCI: MMCONFIG at [mem 0xb0000000-0xbfffffff] reserved in E820 [ 9.575491][ T1] PCI: Using configuration type 1 for base access [ 9.612632][ T88] kworker/u17:1 (88) used greatest stack depth: 26976 bytes left [ 9.923038][ T838] kworker/u17:0 (838) used greatest stack depth: 25968 bytes left [ 10.020870][ T1] HugeTLB registered 2.00 MiB page size, pre-allocated 0 pages [ 10.220383][ T1] cryptd: max_cpu_qlen set to 1000 [ 10.549813][ T1] raid6: avx512x4 gen() 15628 MB/s [ 10.729531][ T1] raid6: avx512x4 xor() 6862 MB/s [ 10.909549][ T1] raid6: avx512x2 gen() 13092 MB/s [ 11.089582][ T1] raid6: avx512x2 xor() 5710 MB/s [ 11.269639][ T1] raid6: avx512x1 gen() 8090 MB/s [ 11.449612][ T1] raid6: avx512x1 xor() 3150 MB/s [ 11.629642][ T1] raid6: avx2x4 gen() 9082 MB/s [ 11.809532][ T1] raid6: avx2x4 xor() 4864 MB/s [ 11.989515][ T1] raid6: avx2x2 gen() 5670 MB/s [ 12.169795][ T1] raid6: avx2x2 xor() 3152 MB/s [ 12.349741][ T1] raid6: avx2x1 gen() 4577 MB/s [ 12.529704][ T1] raid6: avx2x1 xor() 1546 MB/s [ 12.709547][ T1] raid6: sse2x4 gen() 4885 MB/s [ 12.889569][ T1] raid6: sse2x4 xor() 2577 MB/s [ 13.069545][ T1] raid6: sse2x2 gen() 2828 MB/s [ 13.254409][ T1] raid6: sse2x2 xor() 1460 MB/s [ 13.439999][ T1] raid6: sse2x1 gen() 2028 MB/s [ 13.619751][ T1] raid6: sse2x1 xor() 806 MB/s [ 13.629680][ T1] raid6: using algorithm avx512x4 gen() 15628 MB/s [ 13.639733][ T1] raid6: .... xor() 6862 MB/s, rmw enabled [ 13.650316][ T1] raid6: using avx512x2 recovery algorithm [ 13.917093][ T1] ACPI: Added _OSI(Module Device) [ 13.923950][ T1] ACPI: Added _OSI(Processor Device) [ 13.933188][ T1] ACPI: Added _OSI(3.0 _SCP Extensions) [ 13.939778][ T1] ACPI: Added _OSI(Processor Aggregator Device) [ 13.951514][ T1] ACPI: Added _OSI(Linux-Dell-Video) [ 13.959622][ T1] ACPI: Added _OSI(Linux-Lenovo-NV-HDMI-Audio) [ 13.969787][ T1] ACPI: Added _OSI(Linux-HPI-Hybrid-Graphics) [ 14.140156][ T1] ACPI: 2 ACPI AML tables successfully acquired and loaded [ 14.338226][ T1] ACPI: Interpreter enabled [ 14.363138][ T1] ACPI: (supports S0 S3 S4 S5) [ 14.372847][ T1] ACPI: Using IOAPIC for interrupt routing [ 14.406456][ T1] PCI: Using host bridge windows from ACPI; if necessary, use "pci=nocrs" and report a bug [ 14.426538][ T1] ACPI: Enabled 3 GPEs in block 00 to 3F [ 14.684673][ T1] ACPI: PCI Root Bridge [PCI0] (domain 0000 [bus 00-ff]) [ 14.691702][ T1] acpi PNP0A08:00: _OSC: OS supports [ExtendedConfig ASPM ClockPM Segments MSI HPX-Type3] [ 14.712585][ T1] acpi PNP0A08:00: _OSC: platform does not support [LTR] [ 14.724868][ T1] acpi PNP0A08:00: _OSC: OS now controls [PCIeHotplug PME AER PCIeCapability] [ 14.749365][ T1] PCI host bridge to bus 0000:00 [ 14.749580][ T1] pci_bus 0000:00: Unknown NUMA node; performance will be reduced [ 14.759767][ T1] pci_bus 0000:00: root bus resource [io 0x0000-0x0cf7 window] [ 14.769599][ T1] pci_bus 0000:00: root bus resource [io 0x0d00-0xffff window] [ 14.779772][ T1] pci_bus 0000:00: root bus resource [mem 0x000a0000-0x000bffff window] [ 14.789795][ T1] pci_bus 0000:00: root bus resource [mem 0x80000000-0xafffffff window] [ 14.799952][ T1] pci_bus 0000:00: root bus resource [mem 0xc0000000-0xfebfffff window] [ 14.810697][ T1] pci_bus 0000:00: root bus resource [mem 0x580000000-0xd7fffffff window] [ 14.819851][ T1] pci_bus 0000:00: root bus resource [bus 00-ff] [ 14.841355][ T1] pci 0000:00:00.0: [8086:29c0] type 00 class 0x060000 [ 14.943246][ T1] pci 0000:00:01.0: [1af4:1050] type 00 class 0x030000 [ 15.019446][ T1] pci 0000:00:01.0: reg 0x10: [mem 0xfe000000-0xfe7fffff pref] [ 15.149446][ T1] pci 0000:00:01.0: reg 0x18: [mem 0xfe800000-0xfe803fff 64bit pref] [ 15.239446][ T1] pci 0000:00:01.0: reg 0x20: [mem 0xfebf4000-0xfebf4fff] [ 15.469446][ T1] pci 0000:00:01.0: reg 0x30: [mem 0xfebe0000-0xfebeffff pref] [ 16.084468][ T1] pci 0000:00:02.0: [8086:100e] type 00 class 0x020000 [ 16.119446][ T1] pci 0000:00:02.0: reg 0x10: [mem 0xfebc0000-0xfebdffff] [ 16.140112][ T1] pci 0000:00:02.0: reg 0x14: [io 0xc600-0xc63f] [ 16.196352][ T1] pci 0000:00:02.0: reg 0x30: [mem 0xfeb40000-0xfeb7ffff pref] [ 16.370215][ T1] pci 0000:00:03.0: [1af4:1000] type 00 class 0x020000 [ 16.459906][ T1] pci 0000:00:03.0: reg 0x10: [io 0xc680-0xc69f] [ 16.550291][ T1] pci 0000:00:03.0: reg 0x14: [mem 0xfebf5000-0xfebf5fff] [ 16.662354][ T1] pci 0000:00:03.0: reg 0x20: [mem 0xfe804000-0xfe807fff 64bit pref] [ 16.760144][ T1] pci 0000:00:03.0: reg 0x30: [mem 0xfeb80000-0xfebbffff pref] [ 16.936110][ T1] pci 0000:00:04.0: [1274:5000] type 00 class 0x040100 [ 17.023166][ T1] pci 0000:00:04.0: reg 0x10: [io 0xc400-0xc4ff] [ 17.146882][ T1] pci 0000:00:05.0: [8086:2415] type 00 class 0x040100 [ 17.230126][ T1] pci 0000:00:05.0: reg 0x10: [io 0xc000-0xc3ff] [ 17.286930][ T1] pci 0000:00:05.0: reg 0x14: [io 0xc500-0xc5ff] [ 17.392340][ T1] pci 0000:00:06.0: [8086:2668] type 00 class 0x040300 [ 17.471592][ T1] pci 0000:00:06.0: reg 0x10: [mem 0xfebf0000-0xfebf3fff] [ 17.590385][ T1] pci 0000:00:07.0: [1af4:1009] type 00 class 0x000200 [ 17.677463][ T1] pci 0000:00:07.0: reg 0x10: [io 0xc6a0-0xc6bf] [ 17.738071][ T1] pci 0000:00:07.0: reg 0x14: [mem 0xfebf6000-0xfebf6fff] [ 17.822788][ T1] pci 0000:00:07.0: reg 0x20: [mem 0xfe808000-0xfe80bfff 64bit pref] [ 17.939289][ T1] pci 0000:00:1d.0: [8086:2934] type 00 class 0x0c0300 [ 18.026427][ T1] pci 0000:00:1d.0: reg 0x20: [io 0xc6c0-0xc6df] [ 18.122309][ T1] pci 0000:00:1d.1: [8086:2935] type 00 class 0x0c0300 [ 18.199122][ T1] pci 0000:00:1d.1: reg 0x20: [io 0xc6e0-0xc6ff] [ 18.285543][ T1] pci 0000:00:1d.2: [8086:2936] type 00 class 0x0c0300 [ 18.367862][ T1] pci 0000:00:1d.2: reg 0x20: [io 0xc700-0xc71f] [ 18.445282][ T1] pci 0000:00:1d.7: [8086:293a] type 00 class 0x0c0320 [ 18.508756][ T1] pci 0000:00:1d.7: reg 0x10: [mem 0xfebf7000-0xfebf7fff] [ 18.607262][ T1] pci 0000:00:1f.0: [8086:2918] type 00 class 0x060100 [ 18.706685][ T1] pci 0000:00:1f.0: quirk: [io 0x0600-0x067f] claimed by ICH6 ACPI/GPIO/TCO [ 18.767919][ T1] pci 0000:00:1f.0: quirk_ich7_lpc+0x0/0x70 took 58593 usecs [ 18.867667][ T1] pci 0000:00:1f.2: [8086:2922] type 00 class 0x010601 [ 18.939972][ T1] pci 0000:00:1f.2: reg 0x20: [io 0xc720-0xc73f] [ 18.985447][ T1] pci 0000:00:1f.2: reg 0x24: [mem 0xfebf8000-0xfebf8fff] [ 19.060656][ T1] pci 0000:00:1f.3: [8086:2930] type 00 class 0x0c0500 [ 19.121490][ T1] pci 0000:00:1f.3: reg 0x20: [io 0x0700-0x073f] [ 19.282817][ T1] ACPI: PCI Interrupt Link [LNKA] (IRQs 5 *10 11) [ 19.320226][ T1] ACPI: PCI Interrupt Link [LNKB] (IRQs 5 *10 11) [ 19.353097][ T1] ACPI: PCI Interrupt Link [LNKC] (IRQs 5 10 *11) [ 19.393730][ T1] ACPI: PCI Interrupt Link [LNKD] (IRQs 5 10 *11) [ 19.443693][ T1] ACPI: PCI Interrupt Link [LNKE] (IRQs 5 *10 11) [ 19.473611][ T1] ACPI: PCI Interrupt Link [LNKF] (IRQs 5 *10 11) [ 19.514754][ T1] ACPI: PCI Interrupt Link [LNKG] (IRQs 5 10 *11) [ 19.553487][ T1] ACPI: PCI Interrupt Link [LNKH] (IRQs 5 10 *11) [ 19.591244][ T1] ACPI: PCI Interrupt Link [GSIA] (IRQs *16) [ 19.640166][ T1] ACPI: PCI Interrupt Link [GSIB] (IRQs *17) [ 19.680179][ T1] ACPI: PCI Interrupt Link [GSIC] (IRQs *18) [ 19.720483][ T1] ACPI: PCI Interrupt Link [GSID] (IRQs *19) [ 19.770360][ T1] ACPI: PCI Interrupt Link [GSIE] (IRQs *20) [ 19.810303][ T1] ACPI: PCI Interrupt Link [GSIF] (IRQs *21) [ 19.860174][ T1] ACPI: PCI Interrupt Link [GSIG] (IRQs *22) [ 19.900123][ T1] ACPI: PCI Interrupt Link [GSIH] (IRQs *23) [ 20.110838][ T1] iommu: Default domain type: Translated [ 20.207705][ T1] pci 0000:00:01.0: vgaarb: setting as boot VGA device [ 20.220073][ T1] pci 0000:00:01.0: vgaarb: VGA device added: decodes=io+mem,owns=io+mem,locks=none [ 20.320256][ T1] pci 0000:00:01.0: vgaarb: bridge control possible [ 20.359660][ T1] vgaarb: loaded [ 20.514265][ T1] SCSI subsystem initialized [ 20.586443][ T1] ACPI: bus type USB registered [ 20.649766][ T1] usbcore: registered new interface driver usbfs [ 20.720438][ T1] usbcore: registered new interface driver hub [ 20.789467][ T1] usbcore: registered new device driver usb [ 20.866551][ T1] mc: Linux media interface: v0.10 [ 20.932050][ T1] videodev: Linux video capture interface: v2.00 [ 21.019738][ T1] pps_core: LinuxPPS API ver. 1 registered [ 21.069632][ T1] pps_core: Software ver. 5.3.6 - Copyright 2005-2007 Rodolfo Giometti [ 21.140675][ T1] PTP clock support registered [ 21.182505][ T1] EDAC MC: Ver: 3.0.0 [ 21.300739][ T1] Advanced Linux Sound Architecture Driver Initialized. [ 21.355015][ T1] PCI: Using ACPI for IRQ routing [ 25.960962][ T1] Bluetooth: Core ver 2.22 [ 25.974004][ T1] NET: Registered protocol family 31 [ 25.979770][ T1] Bluetooth: HCI device and connection manager initialized [ 25.995971][ T1] Bluetooth: HCI socket layer initialized [ 25.999943][ T1] Bluetooth: L2CAP socket layer initialized [ 26.011028][ T1] Bluetooth: SCO socket layer initialized [ 26.023219][ T1] NET: Registered protocol family 8 [ 26.029878][ T1] NET: Registered protocol family 20 [ 26.051612][ T1] NetLabel: Initializing [ 26.059855][ T1] NetLabel: domain hash size = 128 [ 26.070073][ T1] NetLabel: protocols = UNLABELED CIPSOv4 CALIPSO [ 26.097535][ T1] NetLabel: unlabeled traffic allowed by default [ 26.124810][ T1] nfc: nfc_init: NFC Core ver 0.1 [ 26.136223][ T1] NET: Registered protocol family 39 [ 26.181008][ T1] hpet0: at MMIO 0xfed00000, IRQs 2, 8, 0 [ 26.229989][ T1] hpet0: 3 comparators, 64-bit 100.000000 MHz counter [ 26.305432][ T1] clocksource: Switched to clocksource kvm-clock [ 30.464140][ T1] VFS: Disk quotas dquot_6.6.0 [ 30.500526][ T1] VFS: Dquot-cache hash table entries: 512 (order 0, 4096 bytes) [ 30.543132][ T1] FS-Cache: Loaded [ 30.592996][ T1] CacheFiles: Loaded [ 30.633625][ T1] TOMOYO: 2.6.0 [ 30.654863][ T1] Mandatory Access Control activated. [ 30.678923][ T1] pnp: PnP ACPI init [ 30.747013][ T1] pnp: PnP ACPI: found 6 devices [ 30.943456][ T1] clocksource: acpi_pm: mask: 0xffffff max_cycles: 0xffffff, max_idle_ns: 2085701024 ns [ 30.994457][ T1] pci_bus 0000:00: resource 4 [io 0x0000-0x0cf7 window] [ 31.026493][ T1] pci_bus 0000:00: resource 5 [io 0x0d00-0xffff window] [ 31.056919][ T1] pci_bus 0000:00: resource 6 [mem 0x000a0000-0x000bffff window] [ 31.108069][ T1] pci_bus 0000:00: resource 7 [mem 0x80000000-0xafffffff window] [ 31.151350][ T1] pci_bus 0000:00: resource 8 [mem 0xc0000000-0xfebfffff window] [ 31.193882][ T1] pci_bus 0000:00: resource 9 [mem 0x580000000-0xd7fffffff window] [ 31.245938][ T1] NET: Registered protocol family 2 [ 31.316209][ T1] tcp_listen_portaddr_hash hash table entries: 1024 (order: 4, 81920 bytes, vmalloc) [ 31.361538][ T1] TCP established hash table entries: 16384 (order: 5, 131072 bytes, vmalloc) [ 31.414161][ T1] TCP bind hash table entries: 16384 (order: 8, 1179648 bytes, vmalloc) [ 31.457073][ T1] TCP: Hash tables configured (established 16384 bind 16384) [ 31.524481][ T1] UDP hash table entries: 1024 (order: 5, 163840 bytes, vmalloc) [ 31.574664][ T1] UDP-Lite hash table entries: 1024 (order: 5, 163840 bytes, vmalloc) [ 31.621123][ T1] NET: Registered protocol family 1 [ 31.664484][ T1] RPC: Registered named UNIX socket transport module. [ 31.691619][ T1] RPC: Registered udp transport module. [ 31.722160][ T1] RPC: Registered tcp transport module. [ 31.742629][ T1] RPC: Registered tcp NFSv4.1 backchannel transport module. [ 31.784215][ T1] NET: Registered protocol family 44 [ 31.812085][ T1] pci 0000:00:01.0: Video device with shadowed ROM at [mem 0x000c0000-0x000dffff] [ 31.849607][ T1] pci 0000:00:01.0: pci_fixup_video+0x0/0x270 took 37957 usecs [ 31.910223][ T1] PCI Interrupt Link [GSIA] enabled at IRQ 16 [ 32.015055][ T1] pci 0000:00:1d.0: quirk_usb_early_handoff+0x0/0xfdf took 128639 usecs [ 32.084873][ T1] PCI Interrupt Link [GSIB] enabled at IRQ 17 [ 32.141683][ T1] pci 0000:00:1d.1: quirk_usb_early_handoff+0x0/0xfdf took 72261 usecs [ 32.211955][ T1] PCI Interrupt Link [GSIC] enabled at IRQ 18 [ 32.260457][ T1] pci 0000:00:1d.2: quirk_usb_early_handoff+0x0/0xfdf took 65697 usecs [ 32.316452][ T1] PCI Interrupt Link [GSID] enabled at IRQ 19 [ 32.363072][ T1] pci 0000:00:1d.7: quirk_usb_early_handoff+0x0/0xfdf took 60941 usecs [ 32.392422][ T1] PCI: CLS 0 bytes, default 64 [ 32.454935][ T1] PCI-DMA: Using software bounce buffering for IO (SWIOTLB) [ 32.484613][ T1] software IO TLB: mapped [mem 0x7ac00000-0x7ec00000] (64MB) [ 32.536269][ T1] kvm: no hardware support [ 32.556103][ T1] has_svm: not amd or hygon [ 32.581124][ T1] kvm: no hardware support [ 32.596927][ T1] clocksource: tsc: mask: 0xffffffffffffffff max_cycles: 0x1cd4e75f6d2, max_idle_ns: 440795251066 ns [ 32.646518][ T1] clocksource: Switched to clocksource tsc [ 32.675391][ T1] mce: Machine check injector initialized [ 32.737591][ T1] check: Scanning for low memory corruption every 60 seconds [ 33.345300][ T1] Initialise system trusted keyrings [ 33.388735][ T1] workingset: timestamp_bits=40 max_order=19 bucket_order=0 [ 33.431409][ T1] zbud: loaded [ 33.467455][ T1] DLM installed [ 33.483183][ T1] squashfs: version 4.0 (2009/01/31) Phillip Lougher [ 33.847369][ T1] FS-Cache: Netfs 'nfs' registered for caching [ 34.032746][ T1] NFS: Registering the id_resolver key type [ 34.079249][ T1] Key type id_resolver registered [ 34.105071][ T1] Key type id_legacy registered [ 34.131251][ T1] nfs4filelayout_init: NFSv4 File Layout Driver Registering... [ 34.175974][ T1] Installing knfsd (copyright (C) 1996 okir@monad.swb.de). [ 34.369103][ T1] FS-Cache: Netfs 'cifs' registered for caching [ 34.461681][ T1] Key type cifs.spnego registered [ 34.495588][ T1] Key type cifs.idmap registered [ 34.517312][ T1] ntfs: driver 2.1.32 [Flags: R/W]. [ 34.601627][ T1] fuse: init (API version 7.31) [ 34.658521][ T1] JFS: nTxBlock = 8192, nTxLock = 65536 [ 34.796124][ T1] SGI XFS with ACLs, security attributes, realtime, quota, no debug enabled [ 34.875240][ T1] 9p: Installing v9fs 9p2000 file system support [ 34.916955][ T1] FS-Cache: Netfs '9p' registered for caching [ 34.983851][ T1] ocfs2: Registered cluster interface o2cb [ 35.029262][ T1] ocfs2: Registered cluster interface user [ 35.064811][ T1] OCFS2 User DLM kernel interface loaded [ 35.171982][ T1] gfs2: GFS2 installed [ 35.215322][ T1] FS-Cache: Netfs 'ceph' registered for caching [ 35.247821][ T1] ceph: loaded (mds proto 32) [ 35.497675][ T1] NET: Registered protocol family 38 [ 35.564170][ T1] async_tx: api initialized (async) [ 35.601739][ T1] Key type asymmetric registered [ 35.642325][ T1] Asymmetric key parser 'x509' registered [ 35.682559][ T1] Asymmetric key parser 'pkcs8' registered [ 35.727527][ T1] Key type pkcs7_test registered [ 35.771202][ T1] Asymmetric key parser 'tpm_parser' registered [ 35.831080][ T1] Block layer SCSI generic (bsg) driver version 0.4 loaded (major 243) [ 35.915150][ T1] io scheduler mq-deadline registered [ 35.966067][ T1] io scheduler kyber registered [ 36.004917][ T1] io scheduler bfq registered [ 36.123528][ T1] hgafb: HGA card not detected. [ 36.165318][ T1] hgafb: probe of hgafb.0 failed with error -22 [ 36.203825][ T1] usbcore: registered new interface driver udlfb [ 36.260666][ T1] uvesafb: failed to execute /sbin/v86d [ 36.304313][ T1] uvesafb: make sure that the v86d helper is installed and executable [ 36.371596][ T1] uvesafb: Getting VBE info block failed (eax=0x4f00, err=-2) [ 36.424357][ T1] uvesafb: vbe_init() failed with -22 [ 36.465766][ T1] uvesafb: probe of uvesafb.0 failed with error -22 [ 36.520341][ T1] vga16fb: mapped to 0x00000000f64c6636 [ 72.534114][ T1] Console: switching to colour frame buffer device 80x30 [ 103.212536][ T1] fb0: VGA16 VGA frame buffer device [ 103.353958][ T1] input: Power Button as /devices/LNXSYSTM:00/LNXPWRBN:00/input/input0 [ 103.420480][ T1] ACPI: Power Button [PWRF] [ 103.792215][ T1] ioatdma: Intel(R) QuickData Technology Driver 5.00 [ 103.852995][ T1] PCI Interrupt Link [GSIF] enabled at IRQ 21 [ 103.948512][ T1] PCI Interrupt Link [GSIH] enabled at IRQ 23 [ 104.693708][ T1] N_HDLC line discipline registered with maxframe=4096 [ 104.743326][ T1] Serial: 8250/16550 driver, 4 ports, IRQ sharing enabled [ 104.788012][ T1] 00:05: ttyS0 at I/O 0x3f8 (irq = 4, base_baud = 115200) is a 16550A [ 104.885295][ T1] Cyclades driver 2.6 [ 104.904428][ T1] Initializing Nozomi driver 2.1d [ 104.933238][ T1] RocketPort device driver module, version 2.09, 12-June-2003 [ 104.977698][ T1] No rocketport ports found; unloading driver [ 105.031969][ T1] Non-volatile memory driver v1.3 [ 105.057247][ T1] Linux agpgart interface v0.103 [ 105.166530][ T1] [drm] Initialized vgem 1.0.0 20120112 for vgem on minor 0 [ 105.243147][ T1] [drm] Supports vblank timestamp caching Rev 2 (21.10.2013). [ 105.332051][ T1] [drm] Initialized vkms 1.0.0 20180514 for vkms on minor 1 [ 105.383455][ T1] usbcore: registered new interface driver udl [ 105.433031][ T1] [drm] pci: virtio-vga detected at 0000:00:01.0 [ 105.478864][ T1] fb0: switching to virtiodrmfb from VGA16 VGA [ 118.741729][ T1] Console: switching to colour VGA+ 80x25 [ 118.783426][ T1] virtio-pci 0000:00:01.0: vgaarb: deactivate vga console [ 118.847770][ T1] Console: switching to colour dummy device 80x25 [ 118.881198][ T1] [drm] features: -virgl +edid [ 118.950568][ T1] [drm] number of scanouts: 1 [ 118.963887][ T1] [drm] number of cap sets: 0 [ 119.015767][ T1] [drm] Initialized virtio_gpu 0.1.0 0 for virtio0 on minor 2 [ 119.128233][ T1] ================================================================== [ 119.129887][ T1] BUG: KASAN: slab-out-of-bounds in virtio_gpu_object_create+0x9f3/0xaa0 [ 119.129887][ T1] Write of size 8 at addr ffff8880790fc388 by task swapper/0/1 [ 119.300587][ T1] [ 119.320400][ T1] CPU: 3 PID: 1 Comm: swapper/0 Not tainted 5.6.0-syzkaller #0 [ 119.380250][ T1] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS rel-1.12.0-59-gc9ba5276e321-prebuilt.qemu.org 04/01/2014 [ 119.460260][ T1] Call Trace: [ 119.480164][ T1] dump_stack+0x188/0x20d [ 119.520153][ T1] print_address_description.constprop.0.cold+0xd3/0x315 [ 119.560426][ T1] ? virtio_gpu_object_create+0x9f3/0xaa0 [ 119.600517][ T1] __kasan_report.cold+0x35/0x4d [ 119.640471][ T1] ? __sg_alloc_table_from_pages+0x601/0x610 [ 119.660159][ T1] ? virtio_gpu_object_create+0x9f3/0xaa0 [ 119.700406][ T1] ? virtio_gpu_object_create+0x9f3/0xaa0 [ 119.740383][ T1] kasan_report+0x33/0x50 [ 119.760110][ T1] virtio_gpu_object_create+0x9f3/0xaa0 [ 119.820170][ T1] ? bus_add_driver+0x4a2/0x5a0 [ 119.860983][ T1] ? driver_register+0x1c4/0x330 [ 119.900329][ T1] ? do_one_initcall+0x10a/0x7d0 [ 119.940364][ T1] virtio_gpu_gem_create+0xaa/0x1d0 [ 119.960215][ T1] ? virtio_gpu_init.cold+0xce5/0xce5 [ 120.000413][ T1] ? mark_lock+0x12b/0xf10 [ 120.040390][ T1] ? find_held_lock+0x2d/0x110 [ 120.080211][ T1] virtio_gpu_mode_dumb_create+0x21e/0x360 [ 120.119944][ T1] ? virtio_gpu_gem_create+0x1d0/0x1d0 [ 120.140200][ T1] ? drm_client_framebuffer_create+0x108/0x770 [ 120.180108][ T1] ? kmem_cache_alloc_trace+0x390/0x7d0 [ 120.200213][ T1] drm_mode_create_dumb+0x27c/0x300 [ 120.220910][ T1] drm_client_framebuffer_create+0x1b7/0x770 [ 120.260211][ T1] ? drm_client_framebuffer_delete+0x1a0/0x1a0 [ 120.300442][ T1] ? mutex_trylock+0x2c0/0x2c0 [ 120.319959][ T1] ? find_held_lock+0x2d/0x110 [ 120.340056][ T1] ? drm_dev_dbg+0xb4/0x17b [ 120.359956][ T1] ? __sanitizer_cov_trace_switch+0x45/0x70 [ 120.400089][ T1] drm_fb_helper_generic_probe+0x1e4/0x810 [ 120.420201][ T1] __drm_fb_helper_initial_config_and_unlock+0xb56/0x11e0 [ 120.440087][ T1] ? drm_setup_crtcs_fb+0x6f0/0x6f0 [ 120.459937][ T1] ? retint_kernel+0x2b/0x2b [ 120.480063][ T1] drm_fbdev_client_hotplug+0x30f/0x580 [ 120.500005][ T1] drm_fbdev_generic_setup+0x18b/0x295 [ 120.520025][ T1] virtio_gpu_probe+0x28f/0x2de [ 120.541488][ T1] ? virtio_gpu_remove+0x60/0x60 [ 120.560103][ T1] ? ___might_sleep+0xb0/0x2b0 [ 120.580052][ T1] ? ioread8+0x89/0xa0 [ 120.599998][ T1] ? vp_modern_find_vqs+0x170/0x170 [ 120.620078][ T1] ? vp_get_status+0x37/0x40 [ 120.640109][ T1] ? ioread8+0x89/0xa0 [ 120.660009][ T1] virtio_dev_probe+0x463/0x710 [ 120.680053][ T1] ? virtio_device_restore+0x1f0/0x1f0 [ 120.700075][ T1] really_probe+0x281/0x6d0 [ 120.719941][ T1] driver_probe_device+0x104/0x210 [ 120.740106][ T1] device_driver_attach+0x108/0x140 [ 120.760279][ T1] __driver_attach+0xda/0x240 [ 120.800197][ T1] ? device_driver_attach+0x140/0x140 [ 120.840349][ T1] bus_for_each_dev+0x14b/0x1d0 [ 120.860401][ T1] ? subsys_dev_iter_exit+0x20/0x20 [ 120.900223][ T1] bus_add_driver+0x4a2/0x5a0 [ 120.940382][ T1] driver_register+0x1c4/0x330 [ 120.980426][ T1] ? bochs_init+0x86/0x86 [ 121.000500][ T1] do_one_initcall+0x10a/0x7d0 [ 121.040180][ T1] ? perf_trace_initcall_level+0x420/0x420 [ 121.080210][ T1] ? retint_kernel+0x2b/0x2b [ 121.100312][ T1] kernel_init_freeable+0x501/0x5ae [ 121.140178][ T1] ? rest_init+0x365/0x365 [ 121.160235][ T1] kernel_init+0xd/0x1bb [ 121.180384][ T1] ret_from_fork+0x24/0x30 [ 121.220019][ T1] [ 121.240216][ T1] Allocated by task 1: [ 121.263971][ T1] save_stack+0x1b/0x80 [ 121.279943][ T1] __kasan_kmalloc.constprop.0+0xbf/0xd0 [ 121.320382][ T1] kmem_cache_alloc_trace+0x153/0x7d0 [ 121.340134][ T1] virtio_gpu_create_object+0x3c/0xe0 [ 121.380320][ T1] drm_gem_shmem_create+0x83/0x330 [ 121.400068][ T1] virtio_gpu_object_create+0xa5/0xaa0 [ 121.440961][ T1] virtio_gpu_gem_create+0xaa/0x1d0 [ 121.460581][ T1] virtio_gpu_mode_dumb_create+0x21e/0x360 [ 121.500080][ T1] drm_mode_create_dumb+0x27c/0x300 [ 121.520226][ T1] drm_client_framebuffer_create+0x1b7/0x770 [ 121.560146][ T1] drm_fb_helper_generic_probe+0x1e4/0x810 [ 121.580307][ T1] __drm_fb_helper_initial_config_and_unlock+0xb56/0x11e0 [ 121.640291][ T1] drm_fbdev_client_hotplug+0x30f/0x580 [ 121.660370][ T1] drm_fbdev_generic_setup+0x18b/0x295 [ 121.700343][ T1] virtio_gpu_probe+0x28f/0x2de [ 121.740198][ T1] virtio_dev_probe+0x463/0x710 [ 121.760170][ T1] really_probe+0x281/0x6d0 [ 121.780192][ T1] driver_probe_device+0x104/0x210 [ 121.820103][ T1] device_driver_attach+0x108/0x140 [ 121.840312][ T1] __driver_attach+0xda/0x240 [ 121.880499][ T1] bus_for_each_dev+0x14b/0x1d0 [ 121.900237][ T1] bus_add_driver+0x4a2/0x5a0 [ 121.920268][ T1] driver_register+0x1c4/0x330 [ 121.960669][ T1] do_one_initcall+0x10a/0x7d0 [ 121.980311][ T1] kernel_init_freeable+0x501/0x5ae [ 122.020274][ T1] kernel_init+0xd/0x1bb [ 122.040309][ T1] ret_from_fork+0x24/0x30 [ 122.080899][ T1] [ 122.080899][ T1] Freed by task 0: [ 122.121030][ T1] (stack is not available) [ 122.140465][ T1] [ 122.160296][ T1] The buggy address belongs to the object at ffff8880790fc000 [ 122.160296][ T1] which belongs to the cache kmalloc-1k of size 1024 [ 122.260589][ T1] The buggy address is located 904 bytes inside of [ 122.260589][ T1] 1024-byte region [ffff8880790fc000, ffff8880790fc400) [ 122.340351][ T1] The buggy address belongs to the page: [ 122.380281][ T1] page:ffffea0001e43f00 refcount:1 mapcount:0 mapping:0000000090e7bbc8 index:0xffff8880790fc800 [ 122.460155][ T1] flags: 0x4fffe0000000200(slab) [ 122.499881][ T1] raw: 04fffe0000000200 ffff88807a800840 ffff88807a800840 ffff88802c800c40 [ 122.539945][ T1] raw: ffff8880790fc800 ffff8880790fc000 0000000100000001 0000000000000000 [ 122.579929][ T1] page dumped because: kasan: bad access detected [ 122.619893][ T1] [ 122.619893][ T1] Memory state around the buggy address: [ 122.639747][ T1] ffff8880790fc280: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 122.679990][ T1] ffff8880790fc300: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 122.719806][ T1] >ffff8880790fc380: 00 fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 122.759907][ T1] ^ [ 122.780015][ T1] ffff8880790fc400: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 122.820180][ T1] ffff8880790fc480: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 122.839833][ T1] ================================================================== [ 122.879855][ T1] Disabling lock debugging due to kernel taint [ 122.910928][ T1] Kernel panic - not syncing: panic_on_warn set ... [ 122.920389][ T1] CPU: 0 PID: 1 Comm: swapper/0 Tainted: G B 5.6.0-syzkaller #0 [ 122.920389][ T1] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS rel-1.12.0-59-gc9ba5276e321-prebuilt.qemu.org 04/01/2014 [ 122.920389][ T1] Call Trace: [ 122.920389][ T1] dump_stack+0x188/0x20d [ 122.920389][ T1] panic+0x2e3/0x75c [ 122.920389][ T1] ? add_taint.cold+0x16/0x16 [ 122.920389][ T1] ? preempt_schedule_common+0x5e/0xc0 [ 122.920389][ T1] ? virtio_gpu_object_create+0x9f3/0xaa0 [ 122.920389][ T1] ? preempt_schedule_thunk+0x16/0x18 [ 122.920389][ T1] ? trace_hardirqs_on+0x55/0x220 [ 122.920389][ T1] ? virtio_gpu_object_create+0x9f3/0xaa0 [ 122.920389][ T1] end_report+0x43/0x49 [ 122.920389][ T1] __kasan_report.cold+0xd/0x4d [ 122.920389][ T1] ? __sg_alloc_table_from_pages+0x601/0x610 [ 122.920389][ T1] ? virtio_gpu_object_create+0x9f3/0xaa0 [ 122.920389][ T1] ? virtio_gpu_object_create+0x9f3/0xaa0 [ 122.920389][ T1] kasan_report+0x33/0x50 [ 122.920389][ T1] virtio_gpu_object_create+0x9f3/0xaa0 [ 122.920389][ T1] ? bus_add_driver+0x4a2/0x5a0 [ 122.920389][ T1] ? driver_register+0x1c4/0x330 [ 122.920389][ T1] ? do_one_initcall+0x10a/0x7d0 [ 122.920389][ T1] virtio_gpu_gem_create+0xaa/0x1d0 [ 122.920389][ T1] ? virtio_gpu_init.cold+0xce5/0xce5 [ 122.920389][ T1] ? mark_lock+0x12b/0xf10 [ 122.920389][ T1] ? find_held_lock+0x2d/0x110 [ 122.920389][ T1] virtio_gpu_mode_dumb_create+0x21e/0x360 [ 122.920389][ T1] ? virtio_gpu_gem_create+0x1d0/0x1d0 [ 122.920389][ T1] ? drm_client_framebuffer_create+0x108/0x770 [ 122.920389][ T1] ? kmem_cache_alloc_trace+0x390/0x7d0 [ 122.920389][ T1] drm_mode_create_dumb+0x27c/0x300 [ 122.920389][ T1] drm_client_framebuffer_create+0x1b7/0x770 [ 122.920389][ T1] ? drm_client_framebuffer_delete+0x1a0/0x1a0 [ 122.920389][ T1] ? mutex_trylock+0x2c0/0x2c0 [ 122.920389][ T1] ? find_held_lock+0x2d/0x110 [ 122.920389][ T1] ? drm_dev_dbg+0xb4/0x17b [ 122.920389][ T1] ? __sanitizer_cov_trace_switch+0x45/0x70 [ 122.920389][ T1] drm_fb_helper_generic_probe+0x1e4/0x810 [ 122.920389][ T1] __drm_fb_helper_initial_config_and_unlock+0xb56/0x11e0 [ 122.920389][ T1] ? drm_setup_crtcs_fb+0x6f0/0x6f0 [ 122.920389][ T1] ? retint_kernel+0x2b/0x2b [ 122.920389][ T1] drm_fbdev_client_hotplug+0x30f/0x580 [ 122.920389][ T1] drm_fbdev_generic_setup+0x18b/0x295 [ 122.920389][ T1] virtio_gpu_probe+0x28f/0x2de [ 122.920389][ T1] ? virtio_gpu_remove+0x60/0x60 [ 122.920389][ T1] ? ___might_sleep+0xb0/0x2b0 [ 122.920389][ T1] ? ioread8+0x89/0xa0 [ 122.920389][ T1] ? vp_modern_find_vqs+0x170/0x170 [ 122.920389][ T1] ? vp_get_status+0x37/0x40 [ 122.920389][ T1] ? ioread8+0x89/0xa0 [ 122.920389][ T1] virtio_dev_probe+0x463/0x710 [ 122.920389][ T1] ? virtio_device_restore+0x1f0/0x1f0 [ 122.920389][ T1] really_probe+0x281/0x6d0 [ 122.920389][ T1] driver_probe_device+0x104/0x210 [ 122.920389][ T1] device_driver_attach+0x108/0x140 [ 122.920389][ T1] __driver_attach+0xda/0x240 [ 122.920389][ T1] ? device_driver_attach+0x140/0x140 [ 122.920389][ T1] bus_for_each_dev+0x14b/0x1d0 [ 122.920389][ T1] ? subsys_dev_iter_exit+0x20/0x20 [ 122.920389][ T1] bus_add_driver+0x4a2/0x5a0 [ 122.920389][ T1] driver_register+0x1c4/0x330 [ 122.920389][ T1] ? bochs_init+0x86/0x86 [ 122.920389][ T1] do_one_initcall+0x10a/0x7d0 [ 122.920389][ T1] ? perf_trace_initcall_level+0x420/0x420 [ 122.920389][ T1] ? retint_kernel+0x2b/0x2b [ 122.920389][ T1] kernel_init_freeable+0x501/0x5ae [ 122.920389][ T1] ? rest_init+0x365/0x365 [ 122.920389][ T1] kernel_init+0xd/0x1bb [ 122.920389][ T1] ret_from_fork+0x24/0x30 [ 122.920389][ T1] Kernel Offset: disabled [ 122.920389][ T1] Rebooting in 86400 seconds..