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-8,10.128.0.42' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 25.252944] kvm: KVM_SET_TSS_ADDR need to be called before entering vcpu [ 25.282083] ------------[ cut here ]------------ [ 25.286924] WARNING: CPU: 0 PID: 3014 at arch/x86/kvm/x86.c:7226 kvm_arch_vcpu_ioctl_run+0x213/0x5870 [ 25.296320] Kernel panic - not syncing: panic_on_warn set ... [ 25.296320] [ 25.303657] CPU: 0 PID: 3014 Comm: syzkaller118007 Not tainted 4.13.0-rc6+ #47 [ 25.310984] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 25.320306] Call Trace: [ 25.322867] dump_stack+0x194/0x257 [ 25.326467] ? arch_local_irq_restore+0x53/0x53 [ 25.331113] panic+0x1e4/0x417 [ 25.334274] ? __warn+0x1d9/0x1d9 [ 25.337694] ? show_regs_print_info+0x65/0x65 [ 25.342169] ? kvm_arch_vcpu_ioctl_run+0x213/0x5870 [ 25.347151] __warn+0x1c4/0x1d9 [ 25.350397] ? kvm_arch_vcpu_ioctl_run+0x213/0x5870 [ 25.355385] report_bug+0x211/0x2d0 [ 25.358988] fixup_bug+0x40/0x90 [ 25.362324] do_trap+0x260/0x390 [ 25.365666] do_error_trap+0x120/0x390 [ 25.369526] ? do_trap+0x390/0x390 [ 25.373034] ? kvm_arch_vcpu_ioctl_run+0x213/0x5870 [ 25.378019] ? fpu__activate_curr+0xed/0x650 [ 25.382397] ? fpstate_init+0x160/0x160 [ 25.386342] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 25.391158] do_invalid_op+0x1b/0x20 [ 25.394839] invalid_op+0x1e/0x30 [ 25.398257] RIP: 0010:kvm_arch_vcpu_ioctl_run+0x213/0x5870 [ 25.403848] RSP: 0018:ffff8801d068f670 EFLAGS: 00010297 [ 25.409179] RAX: ffff8801d07ea0c0 RBX: ffff8801d16f0000 RCX: ffff8801d23e845c [ 25.416415] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffff8801d23e8260 [ 25.423653] RBP: ffff8801d068fa40 R08: 0000000000000001 R09: 0000000000000000 [ 25.431419] R10: ffff8801d068fa58 R11: 0000000000000000 R12: 0000000000000001 [ 25.438666] R13: 0000000000000000 R14: ffff8801d276a880 R15: ffff8801d23e8040 [ 25.445926] ? unwind_get_return_address+0x61/0xa0 [ 25.450825] ? __save_stack_trace+0x7e/0xd0 [ 25.455121] ? depot_save_stack+0x12c/0x490 [ 25.459415] ? print_usage_bug+0x480/0x480 [ 25.463616] ? put_pid+0x177/0x1f0 [ 25.467125] ? save_stack+0xa3/0xd0 [ 25.470722] ? kvm_arch_vcpu_runnable+0x520/0x520 [ 25.475531] ? save_stack_trace+0x16/0x20 [ 25.479642] ? save_stack+0x43/0xd0 [ 25.483234] ? kasan_slab_free+0x71/0xc0 [ 25.487260] ? kmem_cache_free+0x77/0x280 [ 25.491375] ? put_pid+0x177/0x1f0 [ 25.494882] ? kvm_vcpu_ioctl+0xd75/0x1010 [ 25.499086] ? do_vfs_ioctl+0x1b1/0x1520 [ 25.503114] ? SyS_ioctl+0x8f/0xc0 [ 25.506619] ? entry_SYSCALL_64_fastpath+0x1f/0xbe [ 25.511518] ? wait_for_completion_interruptible+0x7d0/0x7d0 [ 25.517282] ? lockdep_init_map+0xe4/0x650 [ 25.521486] ? check_noncircular+0x20/0x20 [ 25.525700] ? __init_waitqueue_head+0x97/0x140 [ 25.530338] ? wake_up_q+0xe0/0xe0 [ 25.533859] ? __lock_is_held+0xb6/0x140 [ 25.537892] ? put_pid+0x177/0x1f0 [ 25.541404] ? put_pid+0x177/0x1f0 [ 25.544912] ? rcu_read_lock_sched_held+0x108/0x120 [ 25.549897] ? put_pid_ns+0xe9/0x120 [ 25.553582] ? put_pid+0x184/0x1f0 [ 25.557092] ? task_active_pid_ns+0xd0/0xd0 [ 25.561383] ? __might_sleep+0x95/0x190 [ 25.565328] kvm_vcpu_ioctl+0x64c/0x1010 [ 25.569356] ? kvm_vcpu_ioctl+0x64c/0x1010 [ 25.573561] ? __kvm_gfn_to_hva_cache_init+0xb80/0xb80 [ 25.578815] ? find_held_lock+0x35/0x1d0 [ 25.582862] ? __fget+0x333/0x570 [ 25.586283] ? lock_downgrade+0x990/0x990 [ 25.590401] ? lock_release+0xa40/0xa40 [ 25.594348] ? __lock_is_held+0xb6/0x140 [ 25.598389] ? __fget+0x35c/0x570 [ 25.601819] ? iterate_fd+0x3f0/0x3f0 [ 25.605595] ? finish_task_switch+0x1d3/0x740 [ 25.610062] ? __kvm_gfn_to_hva_cache_init+0xb80/0xb80 [ 25.615308] do_vfs_ioctl+0x1b1/0x1520 [ 25.619163] ? do_raw_spin_trylock+0x190/0x190 [ 25.623716] ? ioctl_preallocate+0x2b0/0x2b0 [ 25.628098] ? selinux_capable+0x40/0x40 [ 25.632127] ? lock_release+0x250/0xa40 [ 25.636077] ? syscall_return_slowpath+0x22f/0x450 [ 25.640983] ? security_file_ioctl+0x7d/0xb0 [ 25.645359] ? security_file_ioctl+0x89/0xb0 [ 25.649741] SyS_ioctl+0x8f/0xc0 [ 25.653081] entry_SYSCALL_64_fastpath+0x1f/0xbe [ 25.657802] RIP: 0033:0x446289 [ 25.660959] RSP: 002b:00007fc0df3a6dc8 EFLAGS: 00000202 ORIG_RAX: 0000000000000010 [ 25.668635] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000000446289 [ 25.675878] RDX: 0000000000000000 RSI: 000000000000ae80 RDI: 0000000000000005 [ 25.683116] RBP: 0000000000000086 R08: 00007fc0df3a7700 R09: 00007fc0df3a7700 [ 25.690352] R10: 00007fc0df3a7700 R11: 0000000000000202 R12: 0000000000000000 [ 25.697600] R13: 00007ffc411ea45f R14: 00007fc0df3a79c0 R15: 0000000000000000 [ 25.705042] Dumping ftrace buffer: [ 25.708614] (ftrace buffer empty) [ 25.712294] Kernel Offset: disabled [ 25.715906] Rebooting in 86400 seconds..