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-7,10.128.0.47' (ECDSA) to the list of known hosts. executing program executing program executing program executing program executing program executing program executing program executing program executing program syzkaller login: [ 42.427448] kvm: KVM_SET_TSS_ADDR need to be called before entering vcpu [ 42.462079] ------------[ cut here ]------------ [ 42.475793] WARNING: CPU: 0 PID: 3099 at arch/x86/kvm/x86.c:7226 kvm_arch_vcpu_ioctl_run+0x213/0x5870 [ 42.488100] ------------[ cut here ]------------ [ 42.488111] WARNING: CPU: 0 PID: 3120 at arch/x86/kvm/x86.c:7226 kvm_arch_vcpu_ioctl_run+0x213/0x5870 [ 42.488114] Kernel panic - not syncing: panic_on_warn set ... [ 42.488114] [ 42.488119] CPU: 0 PID: 3120 Comm: syzkaller959732 Not tainted 4.13.0-rc4+ #32 [ 42.488122] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 42.488123] Call Trace: [ 42.488132] dump_stack+0x194/0x257 [ 42.488141] ? arch_local_irq_restore+0x53/0x53 [ 42.488158] panic+0x1e4/0x417 [ 42.488163] ? __warn+0x1d9/0x1d9 [ 42.488168] ? show_regs_print_info+0x65/0x65 [ 42.488186] ? kvm_arch_vcpu_ioctl_run+0x213/0x5870 [ 42.488190] __warn+0x1c4/0x1d9 [ 42.488196] ? kvm_arch_vcpu_ioctl_run+0x213/0x5870 [ 42.488203] report_bug+0x211/0x2d0 [ 42.488215] fixup_bug+0x40/0x90 [ 42.488221] do_trap+0x260/0x390 [ 42.488232] do_error_trap+0x120/0x390 [ 42.488241] ? do_trap+0x390/0x390 [ 42.488247] ? kvm_arch_vcpu_ioctl_run+0x213/0x5870 [ 42.488253] ? fpu__activate_curr+0xed/0x650 [ 42.488260] ? fpstate_init+0x160/0x160 [ 42.488270] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 42.488280] do_invalid_op+0x1b/0x20 [ 42.488285] invalid_op+0x1e/0x30 [ 42.488289] RIP: 0010:kvm_arch_vcpu_ioctl_run+0x213/0x5870 [ 42.488292] RSP: 0018:ffff8801cf847670 EFLAGS: 00010297 [ 42.488296] RAX: ffff8801cfbf0400 RBX: ffff8801d07af000 RCX: ffff8801d07e065c [ 42.488298] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffff8801d07e0460 [ 42.488301] RBP: ffff8801cf847a40 R08: 0000000000000001 R09: 0000000000000000 [ 42.488303] R10: ffff8801cf847a58 R11: 0000000000000000 R12: 0000000000000001 [ 42.488305] R13: 0000000000000000 R14: ffff8801d6c7c280 R15: ffff8801d07e0240 [ 42.488327] ? unwind_get_return_address+0x61/0xa0 [ 42.488333] ? __save_stack_trace+0x7e/0xd0 [ 42.488344] ? depot_save_stack+0x12c/0x490 [ 42.488353] ? print_usage_bug+0x480/0x480 [ 42.488357] ? put_pid+0x177/0x1f0 [ 42.488364] ? save_stack+0xa3/0xd0 [ 42.488369] ? kvm_arch_vcpu_runnable+0x520/0x520 [ 42.488372] ? save_stack_trace+0x16/0x20 [ 42.488375] ? save_stack+0x43/0xd0 [ 42.488379] ? kasan_slab_free+0x71/0xc0 [ 42.488382] ? kmem_cache_free+0x77/0x280 [ 42.488386] ? put_pid+0x177/0x1f0 [ 42.488390] ? kvm_vcpu_ioctl+0xd75/0x1010 [ 42.488394] ? do_vfs_ioctl+0x1b1/0x1520 [ 42.488397] ? SyS_ioctl+0x8f/0xc0 [ 42.488401] ? entry_SYSCALL_64_fastpath+0x1f/0xbe [ 42.488407] ? wait_for_completion_interruptible+0x7d0/0x7d0 [ 42.488412] ? lockdep_init_map+0xe4/0x650 [ 42.488421] ? check_noncircular+0x20/0x20 [ 42.488429] ? __init_waitqueue_head+0x97/0x140 [ 42.488435] ? wake_up_q+0xe0/0xe0 [ 42.488454] ? __lock_is_held+0xb6/0x140 [ 42.488462] ? put_pid+0x177/0x1f0 [ 42.488470] ? put_pid+0x177/0x1f0 [ 42.488475] ? rcu_read_lock_sched_held+0x108/0x120 [ 42.488480] ? put_pid_ns+0xe9/0x120 [ 42.488488] ? put_pid+0x184/0x1f0 [ 42.488494] ? task_active_pid_ns+0xd0/0xd0 [ 42.488502] ? __might_sleep+0x95/0x190 [ 42.488514] kvm_vcpu_ioctl+0x64c/0x1010 [ 42.488518] ? kvm_vcpu_ioctl+0x64c/0x1010 [ 42.488526] ? __kvm_gfn_to_hva_cache_init+0xb80/0xb80 [ 42.488539] ? find_held_lock+0x35/0x1d0 [ 42.488551] ? __fget+0x333/0x570 [ 42.488556] ? lock_downgrade+0x990/0x990 [ 42.488564] ? lock_release+0xa40/0xa40 [ 42.488574] ? __lock_is_held+0xb6/0x140 [ 42.488590] ? __fget+0x35c/0x570 [ 42.488602] ? iterate_fd+0x3f0/0x3f0 [ 42.488612] ? _raw_spin_unlock_irqrestore+0x31/0xba [ 42.488625] ? __kvm_gfn_to_hva_cache_init+0xb80/0xb80 [ 42.488629] do_vfs_ioctl+0x1b1/0x1520 [ 42.488639] ? ioctl_preallocate+0x2b0/0x2b0 [ 42.488648] ? selinux_capable+0x40/0x40 [ 42.488662] ? syscall_return_slowpath+0x22f/0x450 [ 42.488674] ? security_file_ioctl+0x7d/0xb0 [ 42.488678] ? security_file_ioctl+0x89/0xb0 [ 42.488686] SyS_ioctl+0x8f/0xc0 [ 42.488695] entry_SYSCALL_64_fastpath+0x1f/0xbe [ 42.488699] RIP: 0033:0x446029 [ 42.488701] RSP: 002b:00007f60c3c87dc8 EFLAGS: 00000202 ORIG_RAX: 0000000000000010 [ 42.488705] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000000446029 [ 42.488707] RDX: 0000000000000000 RSI: 000000000000ae80 RDI: 0000000000000006 [ 42.488710] RBP: 0000000000000086 R08: 00007f60c3c88700 R09: 00007f60c3c88700 [ 42.488712] R10: 00007f60c3c88700 R11: 0000000000000202 R12: 0000000000000000 [ 42.488714] R13: 00007ffe1bf15eff R14: 00007f60c3c889c0 R15: 0000000000000000 [ 42.488847] Dumping ftrace buffer: [ 42.488880] (ftrace buffer empty) [ 42.488882] Kernel Offset: disabled [ 42.912824] Rebooting in 86400 seconds..