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-6,10.128.15.202' (ECDSA) to the list of known hosts.
executing program
syzkaller login: [   32.924849] kvm: KVM_SET_TSS_ADDR need to be called before entering vcpu
executing program
executing program
[   33.152094] ------------[ cut here ]------------
[   33.156897] WARNING: CPU: 0 PID: 3038 at arch/x86/kvm/x86.c:7226 kvm_arch_vcpu_ioctl_run+0x213/0x5870
[   33.166258] Kernel panic - not syncing: panic_on_warn set ...
[   33.166258] 
[   33.173591] CPU: 0 PID: 3038 Comm: syzkaller761353 Not tainted 4.13.0-rc5+ #42
[   33.180916] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   33.190236] Call Trace:
[   33.192793]  dump_stack+0x194/0x257
[   33.196391]  ? arch_local_irq_restore+0x53/0x53
executing program
[   33.201034]  panic+0x1e4/0x417
[   33.204193]  ? __warn+0x1d9/0x1d9
[   33.207612]  ? show_regs_print_info+0x65/0x65
[   33.212086]  ? kvm_arch_vcpu_ioctl_run+0x213/0x5870
[   33.217068]  __warn+0x1c4/0x1d9
[   33.220316]  ? kvm_arch_vcpu_ioctl_run+0x213/0x5870
[   33.225302]  report_bug+0x211/0x2d0
[   33.228902]  fixup_bug+0x40/0x90
[   33.232233]  do_trap+0x260/0x390
[   33.235571]  do_error_trap+0x120/0x390
[   33.239427]  ? do_trap+0x390/0x390
[   33.242934]  ? kvm_arch_vcpu_ioctl_run+0x213/0x5870
[   33.247915]  ? fpu__activate_curr+0xed/0x650
[   33.252291]  ? fpstate_init+0x160/0x160
[   33.256237]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[   33.261050]  do_invalid_op+0x1b/0x20
[   33.264728]  invalid_op+0x1e/0x30
[   33.268146] RIP: 0010:kvm_arch_vcpu_ioctl_run+0x213/0x5870
[   33.273733] RSP: 0018:ffff8801d03e7670 EFLAGS: 00010297
[   33.279061] RAX: ffff8801d00b06c0 RBX: ffff8801d0147000 RCX: ffff8801d01b855c
[   33.286300] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffff8801d01b8360
[   33.293535] RBP: ffff8801d03e7a40 R08: 0000000000000001 R09: 0000000000000000
[   33.300774] R10: ffff8801d03e7a58 R11: 0000000000000000 R12: 0000000000000001
[   33.308011] R13: 0000000000000000 R14: ffff8801d2701b00 R15: ffff8801d01b8140
[   33.315272]  ? unwind_get_return_address+0x61/0xa0
[   33.320170]  ? __save_stack_trace+0x7e/0xd0
[   33.324465]  ? depot_save_stack+0x12c/0x490
[   33.328756]  ? print_usage_bug+0x480/0x480
[   33.332964]  ? put_pid+0x177/0x1f0
[   33.336473]  ? save_stack+0xa3/0xd0
[   33.340069]  ? kvm_arch_vcpu_runnable+0x520/0x520
[   33.344876]  ? save_stack_trace+0x16/0x20
[   33.348988]  ? save_stack+0x43/0xd0
[   33.352581]  ? kasan_slab_free+0x71/0xc0
[   33.356607]  ? kmem_cache_free+0x77/0x280
[   33.360721]  ? put_pid+0x177/0x1f0
[   33.364228]  ? kvm_vcpu_ioctl+0xd75/0x1010
[   33.368428]  ? do_vfs_ioctl+0x1b1/0x1520
[   33.372453]  ? SyS_ioctl+0x8f/0xc0
[   33.375959]  ? entry_SYSCALL_64_fastpath+0x1f/0xbe
[   33.380859]  ? wait_for_completion_interruptible+0x7d0/0x7d0
[   33.386629]  ? lockdep_init_map+0xe4/0x650
[   33.390833]  ? check_noncircular+0x20/0x20
[   33.395042]  ? __init_waitqueue_head+0x97/0x140
[   33.399687]  ? wake_up_q+0xe0/0xe0
[   33.403206]  ? __lock_is_held+0xb6/0x140
[   33.407240]  ? put_pid+0x177/0x1f0
[   33.410750]  ? put_pid+0x177/0x1f0
[   33.414267]  ? rcu_read_lock_sched_held+0x108/0x120
[   33.419253]  ? put_pid_ns+0xe9/0x120
[   33.422937]  ? put_pid+0x184/0x1f0
[   33.426445]  ? task_active_pid_ns+0xd0/0xd0
[   33.430741]  ? __might_sleep+0x95/0x190
[   33.434690]  kvm_vcpu_ioctl+0x64c/0x1010
[   33.438717]  ? kvm_vcpu_ioctl+0x64c/0x1010
[   33.442930]  ? __kvm_gfn_to_hva_cache_init+0xb80/0xb80
[   33.448185]  ? find_held_lock+0x35/0x1d0
[   33.452229]  ? __fget+0x333/0x570
[   33.455657]  ? lock_downgrade+0x990/0x990
[   33.459777]  ? lock_release+0xa40/0xa40
[   33.463721]  ? __lock_is_held+0xb6/0x140
[   33.467765]  ? __fget+0x35c/0x570
[   33.471195]  ? iterate_fd+0x3f0/0x3f0
[   33.474973]  ? finish_task_switch+0x1d3/0x740
[   33.479444]  ? __kvm_gfn_to_hva_cache_init+0xb80/0xb80
[   33.484688]  do_vfs_ioctl+0x1b1/0x1520
[   33.488560]  ? do_raw_spin_trylock+0x190/0x190
[   33.493121]  ? ioctl_preallocate+0x2b0/0x2b0
[   33.497501]  ? selinux_capable+0x40/0x40
[   33.501531]  ? lock_downgrade+0x8f0/0x990
[   33.505653]  ? syscall_return_slowpath+0x22f/0x450
[   33.510557]  ? security_file_ioctl+0x7d/0xb0
[   33.514931]  ? security_file_ioctl+0x89/0xb0
[   33.519311]  SyS_ioctl+0x8f/0xc0
[   33.522649]  entry_SYSCALL_64_fastpath+0x1f/0xbe
[   33.527368] RIP: 0033:0x445b59
[   33.530526] RSP: 002b:00007fa794f8bdc8 EFLAGS: 00000202 ORIG_RAX: 0000000000000010
[   33.538199] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000000445b59
[   33.545434] RDX: 0000000000000000 RSI: 000000000000ae80 RDI: 000000000000000f
[   33.552672] RBP: 0000000000000086 R08: 00007fa794f8c700 R09: 00007fa794f8c700
[   33.559950] R10: 00007fa794f8c700 R11: 0000000000000202 R12: 0000000000000000
[   33.567186] R13: 00007ffe9cf4c4af R14: 00007fa794f8c9c0 R15: 0000000000000000
[   33.574552] Dumping ftrace buffer:
[   33.578097]    (ftrace buffer empty)
[   33.581777] Kernel Offset: disabled
[   33.585374] Rebooting in 86400 seconds..