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-6,10.128.0.41' (ECDSA) to the list of known hosts. serialport: Connected to syzkaller.us-central1-c.ci-upstream-kasan-gce-6 port 1 (session ID: 09e2e08960028073b49c49405a2c01989047bf5f7a9932f42a837aa6da88fec0, 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 13:00:53 parsed 1 programs 2017/07/22 13:00:53 executed programs: 0 syzkaller login: [ 69.310812] kvm: KVM_SET_TSS_ADDR need to be called before entering vcpu [ 69.321099] ------------[ cut here ]------------ [ 69.323157] WARNING: CPU: 0 PID: 2925 at arch/x86/kvm/x86.c:7222 kvm_arch_vcpu_ioctl_run+0x213/0x5870 [ 69.325888] Kernel panic - not syncing: panic_on_warn set ... [ 69.325888] [ 69.327826] CPU: 0 PID: 2925 Comm: syz-executor0 Not tainted 4.13.0-rc1+ #1 [ 69.330040] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 69.336940] Call Trace: [ 69.339526] dump_stack+0x194/0x257 [ 69.343157] ? arch_local_irq_restore+0x53/0x53 [ 69.347837] panic+0x1e4/0x417 [ 69.351038] ? __warn+0x1d9/0x1d9 [ 69.354492] ? show_regs_print_info+0x65/0x65 [ 69.359012] ? kvm_arch_vcpu_ioctl_run+0x213/0x5870 [ 69.364046] __warn+0x1c4/0x1d9 [ 69.367325] ? kvm_arch_vcpu_ioctl_run+0x213/0x5870 [ 69.372339] report_bug+0x211/0x2d0 [ 69.375966] fixup_bug+0x40/0x90 [ 69.379365] do_trap+0x260/0x390 [ 69.382727] do_error_trap+0x120/0x390 [ 69.386608] ? do_trap+0x390/0x390 [ 69.390142] ? kvm_arch_vcpu_ioctl_run+0x213/0x5870 [ 69.395187] ? fpu__activate_curr+0xed/0x650 [ 69.399589] ? fpstate_init+0x160/0x160 [ 69.403561] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 69.408433] do_invalid_op+0x1b/0x20 [ 69.412155] invalid_op+0x1e/0x30 [ 69.415607] RIP: 0010:kvm_arch_vcpu_ioctl_run+0x213/0x5870 [ 69.421221] RSP: 0018:ffff8801d1247670 EFLAGS: 00010297 [ 69.426575] RAX: ffff8801d1ac8640 RBX: ffff8801d216b000 RCX: ffff8801d11c849c [ 69.433833] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffff8801d11c82a0 [ 69.441103] RBP: ffff8801d1247a40 R08: 0000000000000001 R09: ffffed003a248f2c [ 69.448394] R10: ffff8801d1247a58 R11: 0000000000000000 R12: 0000000000000001 [ 69.455666] R13: 0000000000000000 R14: ffff8801d5b65a80 R15: ffff8801d11c8080 [ 69.463042] ? do_raw_spin_trylock+0x190/0x190 [ 69.467628] ? mark_held_locks+0xaf/0x100 [ 69.471772] ? _raw_spin_unlock_irq+0x27/0x70 [ 69.476262] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 69.481309] ? kvm_arch_vcpu_runnable+0x520/0x520 [ 69.486146] ? wait_for_completion+0xdb/0x730 [ 69.490649] ? wait_for_completion_interruptible+0x7d0/0x7d0 [ 69.496442] ? lockdep_init_map+0xe4/0x650 [ 69.500682] ? lockdep_init_map+0xe4/0x650 [ 69.504925] ? __init_waitqueue_head+0x97/0x140 [ 69.509588] ? wake_up_q+0xe0/0xe0 [ 69.513130] ? __wait_rcu_gp+0x23f/0x3e0 [ 69.517177] ? rcu_gp_is_normal+0x140/0x140 [ 69.521502] ? synchronize_sched.part.69+0xac/0x100 [ 69.526511] ? synchronize_sched_expedited+0xf0/0xf0 [ 69.531607] ? call_rcu_bh+0x20/0x20 [ 69.535317] ? check_same_owner+0x320/0x320 [ 69.539633] ? trace_raw_output_rcu_utilization+0xb0/0xb0 [ 69.545159] ? put_pid+0x184/0x1f0 [ 69.548692] ? task_active_pid_ns+0xd0/0xd0 [ 69.553012] ? __might_sleep+0x95/0x190 [ 69.556989] kvm_vcpu_ioctl+0x64c/0x1010 [ 69.561042] ? kvm_vcpu_ioctl+0x64c/0x1010 [ 69.565273] ? __kvm_gfn_to_hva_cache_init+0xb80/0xb80 [ 69.570562] ? find_held_lock+0x35/0x1d0 [ 69.574622] ? __fget+0x333/0x570 [ 69.578065] ? lock_downgrade+0x990/0x990 [ 69.582235] ? lock_release+0xa40/0xa40 [ 69.586206] ? __lock_is_held+0xb6/0x140 [ 69.590271] ? __fget+0x35c/0x570 [ 69.593720] ? iterate_fd+0x3f0/0x3f0 [ 69.597519] ? finish_task_switch+0x1d3/0x740 [ 69.602010] ? __kvm_gfn_to_hva_cache_init+0xb80/0xb80 [ 69.607288] do_vfs_ioctl+0x1b1/0x1520 [ 69.611171] ? do_raw_spin_trylock+0x190/0x190 [ 69.615749] ? ioctl_preallocate+0x2b0/0x2b0 [ 69.620153] ? selinux_capable+0x40/0x40 [ 69.624209] ? lockdep_stats_show+0x410/0x870 [ 69.628705] ? syscall_return_slowpath+0x22f/0x450 [ 69.633634] ? security_file_ioctl+0x7d/0xb0 [ 69.638034] ? security_file_ioctl+0x89/0xb0 [ 69.642440] SyS_ioctl+0x8f/0xc0 [ 69.645806] entry_SYSCALL_64_fastpath+0x1f/0xbe [ 69.650577] RIP: 0033:0x4512c9 [ 69.653756] RSP: 002b:00007f8e72de3c08 EFLAGS: 00000216 ORIG_RAX: 0000000000000010 [ 69.661453] RAX: ffffffffffffffda RBX: 0000000000718150 RCX: 00000000004512c9 [ 69.668833] RDX: 0000000000000000 RSI: 000000000000ae80 RDI: 0000000000000006 [ 69.676177] RBP: 0000000000000086 R08: 0000000000000000 R09: 0000000000000000 [ 69.683436] R10: 0000000000000000 R11: 0000000000000216 R12: 0000000000000000 [ 69.690709] R13: 0000000000a6f7ef R14: 00007f8e72de49c0 R15: 0000000000000006 [ 69.699022] Dumping ftrace buffer: [ 69.702668] (ftrace buffer empty) [ 69.706377] Kernel Offset: disabled [ 69.710007] Rebooting in 86400 seconds..