INIT: Entering runlevel: 2

[info] Using makefile-style concurrent boot in runlevel 2.
[....] Starting enhanced syslogd: rsyslogd[?25l[?1c7[ ok 8[?25h[?0c.
[....] Starting periodic command scheduler: cron[?25l[?1c7[ ok 8[?25h[?0c.
[....] Starting OpenBSD Secure Shell server: sshd[?25l[?1c7[ ok 8[?25h[?0c.

Debian GNU/Linux 7 syzkaller ttyS0

Warning: Permanently added 'ci-upstream-kasan-gce-8,10.128.0.37' (ECDSA) to the list of known hosts.
net.ipv6.conf.syz0.accept_dad = 0
net.ipv6.conf.syz0.router_solicitations = 0
executing program
syzkaller login: [   36.524453] kvm: KVM_SET_TSS_ADDR need to be called before entering vcpu
[   36.546055] ------------[ cut here ]------------
[   36.550858] WARNING: CPU: 0 PID: 3040 at arch/x86/kvm/x86.c:7235 kvm_arch_vcpu_ioctl_run+0x213/0x5870
[   36.560233] Kernel panic - not syncing: panic_on_warn set ...
[   36.560233] 
[   36.567583] CPU: 0 PID: 3040 Comm: syzkaller153427 Not tainted 4.13.0-rc7+ #58
[   36.574910] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   36.584234] Call Trace:
[   36.586801]  dump_stack+0x194/0x257
[   36.590409]  ? arch_local_irq_restore+0x53/0x53
[   36.595057]  panic+0x1e4/0x417
[   36.598222]  ? __warn+0x1d9/0x1d9
[   36.601643]  ? show_regs_print_info+0x65/0x65
[   36.606130]  ? kvm_arch_vcpu_ioctl_run+0x213/0x5870
[   36.611124]  __warn+0x1c4/0x1d9
[   36.614373]  ? kvm_arch_vcpu_ioctl_run+0x213/0x5870
[   36.619362]  report_bug+0x211/0x2d0
[   36.622966]  fixup_bug+0x40/0x90
[   36.626318]  do_trap+0x260/0x390
[   36.629658]  do_error_trap+0x120/0x390
[   36.633516]  ? do_trap+0x390/0x390
[   36.637031]  ? kvm_arch_vcpu_ioctl_run+0x213/0x5870
[   36.642017]  ? fpu__activate_curr+0xed/0x650
[   36.646407]  ? fpstate_init+0x160/0x160
[   36.650355]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[   36.655171]  do_invalid_op+0x1b/0x20
[   36.658864]  invalid_op+0x1e/0x30
[   36.662286] RIP: 0010:kvm_arch_vcpu_ioctl_run+0x213/0x5870
[   36.667877] RSP: 0018:ffff8801cfc87670 EFLAGS: 00010297
[   36.673212] RAX: ffff8801d03a24c0 RBX: ffff8801cf23f000 RCX: ffff8801d0d6045c
[   36.680451] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffff8801d0d60260
[   36.687694] RBP: ffff8801cfc87a40 R08: 0000000000000001 R09: 0000000000000000
[   36.694933] R10: ffff8801cfc87a58 R11: 0000000000000000 R12: 0000000000000001
[   36.702171] R13: 0000000000000000 R14: ffff8801d0c3c880 R15: ffff8801d0d60040
[   36.709428]  ? unwind_get_return_address+0x61/0xa0
[   36.714340]  ? __save_stack_trace+0x7e/0xd0
[   36.718633]  ? depot_save_stack+0x12c/0x490
[   36.722925]  ? print_usage_bug+0x480/0x480
[   36.727128]  ? put_pid+0x177/0x1f0
[   36.730657]  ? save_stack+0xa3/0xd0
[   36.734253]  ? kvm_arch_vcpu_runnable+0x520/0x520
[   36.739060]  ? save_stack_trace+0x16/0x20
[   36.743175]  ? save_stack+0x43/0xd0
[   36.746777]  ? kasan_slab_free+0x71/0xc0
[   36.750804]  ? kmem_cache_free+0x77/0x280
[   36.754921]  ? put_pid+0x177/0x1f0
[   36.758428]  ? kvm_vcpu_ioctl+0xd75/0x1010
[   36.762642]  ? do_vfs_ioctl+0x1b1/0x1520
[   36.766670]  ? SyS_ioctl+0x8f/0xc0
[   36.770176]  ? entry_SYSCALL_64_fastpath+0x1f/0xbe
[   36.775075]  ? wait_for_completion_interruptible+0x7d0/0x7d0
[   36.780841]  ? lockdep_init_map+0xe4/0x650
[   36.785050]  ? check_noncircular+0x20/0x20
[   36.789257]  ? __init_waitqueue_head+0x97/0x140
[   36.793895]  ? wake_up_q+0xe0/0xe0
[   36.797416]  ? __lock_is_held+0xb6/0x140
[   36.801450]  ? put_pid+0x177/0x1f0
[   36.804960]  ? put_pid+0x177/0x1f0
[   36.808469]  ? rcu_read_lock_sched_held+0x108/0x120
[   36.813454]  ? put_pid_ns+0xe9/0x120
[   36.817137]  ? put_pid+0x184/0x1f0
[   36.820645]  ? task_active_pid_ns+0xd0/0xd0
[   36.824947]  ? __might_sleep+0x95/0x190
[   36.828914]  kvm_vcpu_ioctl+0x64c/0x1010
[   36.832942]  ? kvm_vcpu_ioctl+0x64c/0x1010
[   36.837156]  ? __kvm_gfn_to_hva_cache_init+0xb80/0xb80
[   36.842407]  ? find_held_lock+0x35/0x1d0
[   36.846443]  ? __fget+0x333/0x570
[   36.849865]  ? lock_downgrade+0x990/0x990
[   36.853981]  ? lock_release+0xa40/0xa40
[   36.857926]  ? __lock_is_held+0xb6/0x140
[   36.861966]  ? __fget+0x35c/0x570
[   36.865404]  ? iterate_fd+0x3f0/0x3f0
[   36.869180]  ? finish_task_switch+0x1d3/0x740
[   36.873656]  ? __kvm_gfn_to_hva_cache_init+0xb80/0xb80
[   36.878902]  do_vfs_ioctl+0x1b1/0x1520
[   36.882762]  ? do_raw_spin_trylock+0x190/0x190
[   36.887338]  ? ioctl_preallocate+0x2b0/0x2b0
[   36.891720]  ? selinux_capable+0x40/0x40
[   36.895751]  ? lock_release+0x190/0xa40
[   36.899702]  ? syscall_return_slowpath+0x22f/0x450
[   36.904608]  ? security_file_ioctl+0x7d/0xb0
[   36.908983]  ? security_file_ioctl+0x89/0xb0
[   36.913372]  SyS_ioctl+0x8f/0xc0
[   36.916712]  entry_SYSCALL_64_fastpath+0x1f/0xbe
[   36.921435] RIP: 0033:0x44a999
[   36.924606] RSP: 002b:00007fad21861d08 EFLAGS: 00000202 ORIG_RAX: 0000000000000010
[   36.932282] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 000000000044a999
[   36.939522] RDX: 0000000000000000 RSI: 000000000000ae80 RDI: 0000000000000006
[   36.946760] RBP: 0000000000000086 R08: 00007fad21862700 R09: 00007fad21862700
[   36.954006] R10: 00007fad21862700 R11: 0000000000000202 R12: 0000000000000000
[   36.961253] R13: 00007ffedb80c10f R14: 00007fad218629c0 R15: 0000000000000000
[   36.968659] Dumping ftrace buffer:
[   36.972202]    (ftrace buffer empty)
[   36.975881] Kernel Offset: disabled
[   36.979477] Rebooting in 86400 seconds..