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-next-kasan-gce-5,10.128.0.56' (ECDSA) to the list of known hosts. 2017/11/04 14:13:09 parsed 1 programs 2017/11/04 14:13:09 executed programs: 0 syzkaller login: [ 48.381967] kvm: KVM_SET_TSS_ADDR need to be called before entering vcpu [ 48.518470] ------------[ cut here ]------------ [ 48.546953] WARNING: CPU: 1 PID: 3043 at arch/x86/kvm/vmx.c:3844 free_loaded_vmcs+0x10f/0x150 [ 48.573529] Kernel panic - not syncing: panic_on_warn set ... [ 48.573529] [ 48.580947] CPU: 0 PID: 3043 Comm: syz-executor3 Not tainted 4.14.0-rc7-next-20171103+ #38 [ 48.589323] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 48.598649] Call Trace: [ 48.601217] dump_stack+0x194/0x257 [ 48.604817] ? arch_local_irq_restore+0x53/0x53 [ 48.609460] ? vsnprintf+0x1ed/0x1900 [ 48.613238] panic+0x1e4/0x41c [ 48.616400] ? refcount_error_report+0x214/0x214 [ 48.621127] ? show_regs_print_info+0x65/0x65 [ 48.625600] ? __warn+0x1a9/0x1e0 [ 48.629027] ? free_loaded_vmcs+0x10f/0x150 [ 48.633315] __warn+0x1c4/0x1e0 [ 48.636565] ? free_loaded_vmcs+0x10f/0x150 [ 48.640858] report_bug+0x211/0x2d0 [ 48.644461] fixup_bug+0x40/0x90 [ 48.647802] do_trap+0x260/0x390 [ 48.651144] do_error_trap+0x120/0x390 [ 48.655009] ? do_trap+0x390/0x390 [ 48.658521] ? free_loaded_vmcs+0x10f/0x150 [ 48.662813] ? smp_call_function_single+0x3ae/0x560 [ 48.667801] ? vmx_cpuid_update+0x9a0/0x9a0 [ 48.672095] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 48.676913] do_invalid_op+0x1b/0x20 [ 48.680596] invalid_op+0x18/0x20 [ 48.684019] RIP: 0010:free_loaded_vmcs+0x10f/0x150 [ 48.688913] RSP: 0018:ffff8801cb5b6f18 EFLAGS: 00010293 [ 48.694244] RAX: ffff8801cc0980c0 RBX: ffff8801d83946d8 RCX: ffffffff8119c79f [ 48.701483] RDX: 0000000000000000 RSI: 0000000000000001 RDI: ffff8801d83946e0 [ 48.708720] RBP: ffff8801cb5b6f30 R08: ffffea0007614a60 R09: 0000000000000000 [ 48.715958] R10: 0000000000000000 R11: 0000000000000000 R12: ffff8801d8529000 [ 48.723196] R13: 0000000000000001 R14: dffffc0000000000 R15: ffffed00396b6e07 [ 48.730447] ? free_loaded_vmcs+0x10f/0x150 [ 48.734741] ? free_loaded_vmcs+0x10f/0x150 [ 48.739031] vmx_free_vcpu+0x1d3/0x2c0 [ 48.742893] kvm_arch_destroy_vm+0x4b4/0x990 [ 48.747274] ? kvm_arch_sync_events+0x30/0x30 [ 48.751741] ? mmdrop+0x18/0x30 [ 48.754993] ? mmu_notifier_unregister+0x437/0x5c0 [ 48.759892] ? kvm_put_kvm+0x306/0xde0 [ 48.763750] ? mmu_notifier_unregister_no_release+0x3e0/0x3e0 [ 48.769605] ? __free_pages+0x107/0x150 [ 48.773549] ? free_unref_page+0x9d0/0x9d0 [ 48.777754] ? quarantine_put+0xeb/0x190 [ 48.781782] ? kfree+0xe4/0x250 [ 48.785031] ? kvm_put_kvm+0x614/0xde0 [ 48.788891] ? free_pages+0x51/0x90 [ 48.792489] kvm_put_kvm+0x695/0xde0 [ 48.796181] ? kvm_clear_guest+0xb0/0xb0 [ 48.800232] ? fcntl_setlk+0x10d0/0x10d0 [ 48.804260] ? fsnotify+0x7b3/0x1140 [ 48.807947] ? _raw_spin_unlock_irq+0x27/0x70 [ 48.812420] ? kvm_irqfd_release+0xdd/0x120 [ 48.816709] ? kvm_irqfd_release+0xdd/0x120 [ 48.821003] ? kvm_put_kvm+0xde0/0xde0 [ 48.824858] kvm_vm_release+0x42/0x50 [ 48.828630] __fput+0x333/0x7f0 [ 48.831886] ? fput+0x140/0x140 [ 48.835137] ? trace_event_raw_event_sched_switch+0x8a0/0x8a0 [ 48.841000] ? _raw_spin_unlock_irq+0x27/0x70 [ 48.845470] ____fput+0x15/0x20 [ 48.848723] task_work_run+0x199/0x270 [ 48.852582] ? task_work_cancel+0x210/0x210 [ 48.856873] ? _raw_spin_unlock+0x22/0x30 [ 48.860992] ? switch_task_namespaces+0x87/0xc0 [ 48.865634] do_exit+0x9b5/0x1ad0 [ 48.869054] ? debug_check_no_locks_freed+0x3d0/0x3d0 [ 48.874216] ? mm_update_next_owner+0x930/0x930 [ 48.878859] ? find_held_lock+0x39/0x1d0 [ 48.882899] ? lock_downgrade+0x990/0x990 [ 48.887015] ? refill_pi_state_cache.part.6+0x2f0/0x2f0 [ 48.892352] ? futex_wait+0x3ad/0x990 [ 48.896127] ? check_noncircular+0x20/0x20 [ 48.900344] ? fault_in_user_writeable+0x90/0x90 [ 48.905071] ? mmdrop+0x18/0x30 [ 48.908322] ? find_held_lock+0x39/0x1d0 [ 48.912363] ? lock_downgrade+0x990/0x990 [ 48.916483] ? recalc_sigpending_tsk+0x117/0x150 [ 48.921209] ? recalc_sigpending+0x103/0x160 [ 48.925585] ? recalc_sigpending_tsk+0x150/0x150 [ 48.930306] ? get_signal+0x2b2/0x16d0 [ 48.934175] do_group_exit+0x149/0x400 [ 48.938032] ? __lock_is_held+0xbc/0x140 [ 48.942062] ? SyS_exit+0x30/0x30 [ 48.945483] ? _raw_spin_unlock_irq+0x27/0x70 [ 48.949948] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 48.954941] get_signal+0x73f/0x16d0 [ 48.958635] ? ptrace_notify+0x130/0x130 [ 48.962676] ? exit_robust_list+0x240/0x240 [ 48.966976] ? __sched_text_start+0x8/0x8 [ 48.971097] ? __fget+0xbb/0x580 [ 48.974440] do_signal+0x94/0x1ee0 [ 48.977950] ? lock_release+0xd70/0xd70 [ 48.981907] ? setup_sigcontext+0x7d0/0x7d0 [ 48.986208] ? schedule+0xf5/0x430 [ 48.989720] ? __schedule+0x2060/0x2060 [ 48.993666] ? _raw_spin_unlock_irq+0x27/0x70 [ 48.998129] ? task_work_run+0x1f4/0x270 [ 49.002161] ? task_work_cancel+0x210/0x210 [ 49.006454] ? exit_to_usermode_loop+0x8c/0x310 [ 49.011096] exit_to_usermode_loop+0x214/0x310 [ 49.015648] ? trace_event_raw_event_sys_exit+0x260/0x260 [ 49.021154] ? selinux_capable+0x40/0x40 [ 49.025193] syscall_return_slowpath+0x42f/0x510 [ 49.029919] ? prepare_exit_to_usermode+0x2d0/0x2d0 [ 49.034906] ? entry_SYSCALL_64_fastpath+0x91/0xbe [ 49.039805] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 49.044793] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 49.049524] entry_SYSCALL_64_fastpath+0xbc/0xbe [ 49.054246] RIP: 0033:0x452869 [ 49.057403] RSP: 002b:00007f5638d2ece8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca [ 49.065082] RAX: fffffffffffffe00 RBX: 00000000007581b8 RCX: 0000000000452869 [ 49.072319] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000007581b8 [ 49.079565] RBP: 00000000007581b8 R08: 0000000000000000 R09: 0000000000758190 [ 49.086804] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 49.094040] R13: 00007fffd149815f R14: 00007f5638d2f9c0 R15: 0000000000000006 [ 49.101478] Dumping ftrace buffer: [ 49.105046] (ftrace buffer empty) [ 49.108728] Kernel Offset: disabled [ 49.112329] Rebooting in 86400 seconds..