device gre0 entered promiscuous mode kvm: pic: non byte read kvm: pic: non byte read kvm: pic: non byte read kvm: pic: non byte read BUG: unable to handle kernel paging request at 000000005ec0e7d9 IP: lock_acquire+0x183/0x580 kernel/locking/lockdep.c:4002 PGD 5e28067 P4D 5e28067 PUD 5e2a067 PMD 0 Oops: 0002 [#1] SMP KASAN Dumping ftrace buffer: (ftrace buffer empty) Modules linked in: CPU: 0 PID: 7294 Comm: syz-executor1 Not tainted 4.15.0-rc2-next-20171206+ #60 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:lock_acquire+0x183/0x580 kernel/locking/lockdep.c:4002 RSP: 0018:ffff8801db407cc0 EFLAGS: 00010046 RAX: 0000000000000007 RBX: 0000000000000000 RCX: 0000000000000000 RDX: ffff8801c394a2c0 RSI: 0000000000000000 RDI: ffff8801c394ab44 RBP: ffff8801db407db8 R08: 0000000000000001 R09: 0000000000000000 R10: 1ffff1003b680f9e R11: 0000000000000000 R12: 1ffff1003b680f9e R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000001 FS: 00007fc02ffa7700(0000) GS:ffff8801db400000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: fffffffffffffff8 CR3: 00000001c0dd6000 CR4: 00000000001426f0 Call Trace: __raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:110 [inline] _raw_spin_lock_irqsave+0x96/0xc0 kernel/locking/spinlock.c:159 hrtimer_interrupt+0xc2/0x6f0 kernel/time/hrtimer.c:1450 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1025 [inline] smp_apic_timer_interrupt+0x14a/0x700 arch/x86/kernel/apic/apic.c:1050 apic_timer_interrupt+0xa9/0xb0 arch/x86/entry/entry_64.S:907 RIP: 0010:arch_local_irq_restore arch/x86/include/asm/paravirt.h:777 [inline] RIP: 0010:console_unlock+0x954/0xd70 kernel/printk/printk.c:2235 RSP: 0018:ffff8801c8246b98 EFLAGS: 00000216 ORIG_RAX: ffffffffffffff11 RAX: 0000000000010000 RBX: 0000000000000000 RCX: ffffffff8159c44b RDX: 0000000000009efb RSI: ffffc90003437000 RDI: 0000000000000216 RBP: ffff8801c8246c80 R08: 1ffff10039048d41 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 R13: 0000000000000000 R14: dffffc0000000000 R15: ffffffff83a2ea10 vprintk_emit+0x4ad/0x590 kernel/printk/printk.c:1757 vprintk_default+0x28/0x30 kernel/printk/printk.c:1796 vprintk_func+0x57/0xc0 kernel/printk/printk_safe.c:379 printk+0xaa/0xca kernel/printk/printk.c:1829 picdev_read+0x53c/0x610 arch/x86/kvm/i8259.c:488 picdev_slave_read+0x31/0x40 arch/x86/kvm/i8259.c:536 kvm_iodevice_read include/kvm/iodev.h:59 [inline] __kvm_io_bus_read arch/x86/kvm/../../../virt/kvm/kvm_main.c:3515 [inline] kvm_io_bus_read+0x3e0/0x740 arch/x86/kvm/../../../virt/kvm/kvm_main.c:3541 kernel_pio+0xeb/0x240 arch/x86/kvm/x86.c:4912 emulator_pio_in_out arch/x86/kvm/x86.c:4934 [inline] emulator_pio_in_emulated+0x1e7/0x840 arch/x86/kvm/x86.c:4961 pio_in_emulated arch/x86/kvm/emulate.c:1481 [inline] em_in+0x562/0xa30 arch/x86/kvm/emulate.c:3834 x86_emulate_insn+0x55d/0x3cf0 arch/x86/kvm/emulate.c:5522 x86_emulate_instruction+0x411/0x1ad0 arch/x86/kvm/x86.c:5771 emulate_instruction arch/x86/include/asm/kvm_host.h:1164 [inline] handle_io+0xa4/0xd0 arch/x86/kvm/vmx.c:6028 vmx_handle_exit+0x25d/0x1ce0 arch/x86/kvm/vmx.c:8893 vcpu_enter_guest arch/x86/kvm/x86.c:7084 [inline] vcpu_run arch/x86/kvm/x86.c:7146 [inline] kvm_arch_vcpu_ioctl_run+0x1cb4/0x5c60 arch/x86/kvm/x86.c:7314 kvm_vcpu_ioctl+0x64c/0x1010 arch/x86/kvm/../../../virt/kvm/kvm_main.c:2555 vfs_ioctl fs/ioctl.c:46 [inline] do_vfs_ioctl+0x1b1/0x1530 fs/ioctl.c:686 SYSC_ioctl fs/ioctl.c:701 [inline] SyS_ioctl+0x8f/0xc0 fs/ioctl.c:692 do_syscall_64+0x26c/0x920 arch/x86/entry/common.c:285 entry_SYSCALL64_slow_path+0x25/0x25 RIP: 0033:0x452a39 RSP: 002b:00007fc02ffa6c58 EFLAGS: 00000212 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 0000000000758020 RCX: 0000000000452a39 RDX: 0000000000000000 RSI: 000000000000ae80 RDI: 0000000000000019 RBP: 000000000000021e R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000212 R12: 00000000006f0370 R13: 00000000ffffffff R14: 00007fc02ffa76d4 R15: 0000000000000000 Code: df 48 89 f9 48 c1 e9 03 0f b6 0c 01 48 89 f8 83 e0 07 83 c0 03 38 c8 7c 08 84 c9 0f 85 fe 02 00 00 c7 82 84 08 00 00 01 00 00 00 1f 44 00 00 65 8b 05 a1 c9 aa 7e 89 c0 48 0f a3 05 27 8a 08 RIP: lock_acquire+0x183/0x580 kernel/locking/lockdep.c:4002 RSP: ffff8801db407cc0 CR2: fffffffffffffff8 ---[ end trace f2ed0ac2740ea403 ]---