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-5,10.128.15.206' (ECDSA) to the list of known hosts. 2017/11/16 04:02:11 parsed 1 programs 2017/11/16 04:02:11 executed programs: 0 syzkaller login: [ 19.466979] kvm: KVM_SET_TSS_ADDR need to be called before entering vcpu [ 21.424080] ------------[ cut here ]------------ [ 21.428871] WARNING: CPU: 0 PID: 3425 at arch/x86/kvm/x86.c:7265 kvm_arch_vcpu_ioctl_run+0x213/0x5c70 [ 21.438195] Kernel panic - not syncing: panic_on_warn set ... [ 21.438195] [ 21.445524] CPU: 0 PID: 3425 Comm: syz-executor6 Not tainted 4.14.0+ #178 [ 21.452415] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 21.461740] Call Trace: [ 21.464304] dump_stack+0x194/0x257 [ 21.467904] ? arch_local_irq_restore+0x53/0x53 [ 21.472554] panic+0x1e4/0x41c [ 21.475719] ? refcount_error_report+0x214/0x214 [ 21.480444] ? show_regs_print_info+0x65/0x65 [ 21.484925] ? kvm_arch_vcpu_ioctl_run+0x213/0x5c70 [ 21.489908] __warn+0x1c4/0x1e0 [ 21.493159] ? kvm_arch_vcpu_ioctl_run+0x213/0x5c70 [ 21.498147] report_bug+0x211/0x2d0 [ 21.501752] fixup_bug.part.12+0x37/0x80 [ 21.505784] do_error_trap+0x2d7/0x3e0 [ 21.509644] ? math_error+0x400/0x400 [ 21.513417] ? fpu__initialize+0xed/0x650 [ 21.517535] ? fpu__save+0x6a0/0x6a0 [ 21.521223] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 21.526039] do_invalid_op+0x1b/0x20 [ 21.529721] invalid_op+0x18/0x20 [ 21.533142] RIP: 0010:kvm_arch_vcpu_ioctl_run+0x213/0x5c70 [ 21.538731] RSP: 0018:ffff8801c69ff670 EFLAGS: 00010297 [ 21.544063] RAX: ffff8801c0e6a3c0 RBX: ffff8801ce4ff000 RCX: ffff8801c7e21cdc [ 21.551300] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffff8801c7e21af8 [ 21.558537] RBP: ffff8801c69ffa40 R08: 0000000000000001 R09: 0000000000000001 [ 21.565773] R10: 0000000000000000 R11: 0000000000000001 R12: 0000000000000000 [ 21.573014] R13: 1ffff10038d3ff72 R14: ffff8801d76ed780 R15: ffff8801c7e218c0 [ 21.580282] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 21.585282] ? wait_for_completion_interruptible+0x830/0x830 [ 21.591053] ? kvm_arch_vcpu_runnable+0x560/0x560 [ 21.595866] ? __raw_spin_lock_init+0x2d/0x100 [ 21.600418] ? __init_waitqueue_head+0x97/0x140 [ 21.605059] ? wake_up_q+0xe0/0xe0 [ 21.608570] ? __lockdep_init_map+0xe4/0x650 [ 21.612958] ? __wait_rcu_gp+0x25d/0x420 [ 21.616988] ? rcu_gp_is_normal+0x140/0x140 [ 21.622112] ? synchronize_sched.part.67+0xbd/0x110 [ 21.627097] ? synchronize_sched_expedited+0xf0/0xf0 [ 21.632166] ? call_rcu_bh+0x20/0x20 [ 21.635848] ? __lock_is_held+0xbc/0x140 [ 21.639875] ? lock_release+0xd90/0xd90 [ 21.643822] ? trace_raw_output_rcu_utilization+0xb0/0xb0 [ 21.649341] ? put_pid+0x184/0x1f0 [ 21.652853] ? task_active_pid_ns+0xd0/0xd0 [ 21.657147] ? __might_sleep+0x95/0x190 [ 21.661097] kvm_vcpu_ioctl+0x64c/0x1010 [ 21.665124] ? kvm_vcpu_ioctl+0x64c/0x1010 [ 21.669333] ? __kvm_gfn_to_hva_cache_init+0xbb0/0xbb0 [ 21.674580] ? find_held_lock+0x39/0x1d0 [ 21.678620] ? lock_downgrade+0x990/0x990 [ 21.682738] ? __fget+0xbb/0x580 [ 21.686076] ? avc_ss_reset+0x110/0x110 [ 21.690027] ? lock_release+0xd90/0xd90 [ 21.693972] ? __lock_is_held+0xbc/0x140 [ 21.698023] ? __fget+0x362/0x580 [ 21.701453] ? iterate_fd+0x3f0/0x3f0 [ 21.705236] ? __kvm_gfn_to_hva_cache_init+0xbb0/0xbb0 [ 21.710481] do_vfs_ioctl+0x1b1/0x1530 [ 21.714334] ? _cond_resched+0x14/0x30 [ 21.718196] ? ioctl_preallocate+0x2b0/0x2b0 [ 21.722576] ? selinux_capable+0x40/0x40 [ 21.726612] ? SyS_futex+0x269/0x390 [ 21.730309] ? security_file_ioctl+0x89/0xb0 [ 21.734690] SyS_ioctl+0x8f/0xc0 [ 21.738035] entry_SYSCALL_64_fastpath+0x1f/0x96 [ 21.742756] RIP: 0033:0x452879 [ 21.745914] RSP: 002b:00007f357a0cabe8 EFLAGS: 00000212 ORIG_RAX: 0000000000000010 [ 21.753590] RAX: ffffffffffffffda RBX: 0000000000758190 RCX: 0000000000452879 [ 21.760828] RDX: 0000000000000000 RSI: 000000000000ae80 RDI: 0000000000000004 [ 21.768066] RBP: 0000000000000082 R08: 0000000000000000 R09: 0000000000000000 [ 21.775303] R10: 0000000000000000 R11: 0000000000000212 R12: 0000000000000000 [ 21.782539] R13: 00007ffc3ffd8c1f R14: 00007f357a0cb9c0 R15: 0000000000000002 [ 21.790416] Dumping ftrace buffer: [ 21.793990] (ftrace buffer empty) [ 21.797666] Kernel Offset: disabled [ 21.801262] Rebooting in 86400 seconds..