Pseudo-terminal will not be allocated because stdin is not a terminal. Warning: Permanently added '[ssh-serialport.googleapis.com]:9600,[216.239.38.127]:9600' (RSA) to the list of known hosts. Warning: Permanently added 'ci-upstream-kasan-gce-4,10.128.0.9' (ECDSA) to the list of known hosts. serialport: Connected to syzkaller.us-central1-c.ci-upstream-kasan-gce-4 port 1 (session ID: 7bfa136f750b6cb31d638416a2743969c4544dc7499e0241f547d1b9f084be34, active connections: 1). 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 2017/07/22 19:45:27 parsed 1 programs 2017/07/22 19:45:27 executed programs: 0 syzkaller login: [ 369.288888] kvm: KVM_SET_TSS_ADDR need to be called before entering vcpu [ 369.298041] ------------[ cut here ]------------ [ 369.298751] WARNING: CPU: 1 PID: 2935 at arch/x86/kvm/x86.c:7222 kvm_arch_vcpu_ioctl_run+0x213/0x5870 [ 369.300133] Kernel panic - not syncing: panic_on_warn set ... [ 369.300133] [ 369.301114] CPU: 1 PID: 2935 Comm: syz-executor0 Not tainted 4.13.0-rc1+ #1 [ 369.302044] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 369.303288] Call Trace: [ 369.303658] dump_stack+0x194/0x257 [ 369.304150] ? arch_local_irq_restore+0x53/0x53 [ 369.304783] panic+0x1e4/0x417 [ 369.305216] ? __warn+0x1d9/0x1d9 [ 369.305686] ? show_regs_print_info+0x65/0x65 [ 369.306299] ? kvm_arch_vcpu_ioctl_run+0x213/0x5870 [ 369.306964] __warn+0x1c4/0x1d9 [ 369.307408] ? kvm_arch_vcpu_ioctl_run+0x213/0x5870 [ 369.308092] report_bug+0x211/0x2d0 [ 369.308604] fixup_bug+0x40/0x90 [ 369.309378] do_trap+0x260/0x390 [ 369.312715] do_error_trap+0x120/0x390 [ 369.316575] ? do_trap+0x390/0x390 [ 369.320082] ? kvm_arch_vcpu_ioctl_run+0x213/0x5870 [ 369.325063] ? fpu__activate_curr+0xed/0x650 [ 369.329440] ? fpstate_init+0x160/0x160 [ 369.333382] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 369.338196] do_invalid_op+0x1b/0x20 [ 369.341900] invalid_op+0x1e/0x30 [ 369.345321] RIP: 0010:kvm_arch_vcpu_ioctl_run+0x213/0x5870 [ 369.350906] RSP: 0018:ffff8801d13ff670 EFLAGS: 00010297 [ 369.356234] RAX: ffff8801d0d0e200 RBX: ffff8801d1017000 RCX: ffff8801d189045c [ 369.363470] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffff8801d1890260 [ 369.370716] RBP: ffff8801d13ffa40 R08: 0000000000000001 R09: ffffed003a27ff2c [ 369.377951] R10: ffff8801d13ffa58 R11: 0000000000000000 R12: 0000000000000001 [ 369.385187] R13: 0000000000000000 R14: ffff8801d9696500 R15: ffff8801d1890040 [ 369.392459] ? do_raw_spin_trylock+0x190/0x190 [ 369.397010] ? mark_held_locks+0xaf/0x100 [ 369.401124] ? _raw_spin_unlock_irq+0x27/0x70 [ 369.405584] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 369.410568] ? kvm_arch_vcpu_runnable+0x520/0x520 [ 369.415375] ? wait_for_completion+0xdb/0x730 [ 369.419838] ? wait_for_completion_interruptible+0x7d0/0x7d0 [ 369.425601] ? lockdep_init_map+0xe4/0x650 [ 369.429802] ? lockdep_init_map+0xe4/0x650 [ 369.434003] ? __init_waitqueue_head+0x97/0x140 [ 369.438664] ? wake_up_q+0xe0/0xe0 [ 369.442191] ? __wait_rcu_gp+0x23f/0x3e0 [ 369.446215] ? rcu_gp_is_normal+0x140/0x140 [ 369.450511] ? synchronize_sched.part.69+0xac/0x100 [ 369.455493] ? synchronize_sched_expedited+0xf0/0xf0 [ 369.460578] ? call_rcu_bh+0x20/0x20 [ 369.464269] ? check_same_owner+0x320/0x320 [ 369.468555] ? trace_raw_output_rcu_utilization+0xb0/0xb0 [ 369.474056] ? put_pid+0x184/0x1f0 [ 369.477561] ? task_active_pid_ns+0xd0/0xd0 [ 369.481848] ? __might_sleep+0x95/0x190 [ 369.485795] kvm_vcpu_ioctl+0x64c/0x1010 [ 369.489821] ? kvm_vcpu_ioctl+0x64c/0x1010 [ 369.494024] ? __kvm_gfn_to_hva_cache_init+0xb80/0xb80 [ 369.499272] ? __schedule+0x8f0/0x2070 [ 369.503128] ? find_held_lock+0x35/0x1d0 [ 369.507174] ? __fget+0x333/0x570 [ 369.510591] ? lock_downgrade+0x990/0x990 [ 369.514706] ? lock_release+0xa40/0xa40 [ 369.518646] ? __lock_is_held+0xb6/0x140 [ 369.522682] ? __fget+0x35c/0x570 [ 369.526109] ? iterate_fd+0x3f0/0x3f0 [ 369.529888] ? __kvm_gfn_to_hva_cache_init+0xb80/0xb80 [ 369.535153] do_vfs_ioctl+0x1b1/0x1520 [ 369.539012] ? ioctl_preallocate+0x2b0/0x2b0 [ 369.543406] ? selinux_capable+0x40/0x40 [ 369.547469] ? SyS_futex+0x285/0x380 [ 369.551147] ? SyS_futex+0x28e/0x380 [ 369.554852] ? security_file_ioctl+0x7d/0xb0 [ 369.559225] ? security_file_ioctl+0x89/0xb0 [ 369.563602] SyS_ioctl+0x8f/0xc0 [ 369.566939] entry_SYSCALL_64_fastpath+0x1f/0xbe [ 369.571656] RIP: 0033:0x4512c9 [ 369.574809] RSP: 002b:00007f97d74bbc08 EFLAGS: 00000216 ORIG_RAX: 0000000000000010 [ 369.582484] RAX: ffffffffffffffda RBX: 00000000007180a8 RCX: 00000000004512c9 [ 369.589719] RDX: 0000000000000000 RSI: 000000000000ae80 RDI: 0000000000000005 [ 369.596953] RBP: 0000000000000086 R08: 0000000000000000 R09: 0000000000000000 [ 369.604187] R10: 0000000000000000 R11: 0000000000000216 R12: 00000000004b7b30 [ 369.611430] R13: 00000000ffffffff R14: 0000000000000003 R15: 000000000000ae01 [ 369.619144] Dumping ftrace buffer: [ 369.622691] (ftrace buffer empty) [ 369.626370] Kernel Offset: disabled [ 369.629964] Rebooting in 86400 seconds..