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-386-3,10.128.0.15' (ECDSA) to the list of known hosts. 2017/11/16 04:02:53 parsed 1 programs 2017/11/16 04:02:53 executed programs: 0 syzkaller login: [ 26.494183] kvm: KVM_SET_TSS_ADDR need to be called before entering vcpu [ 26.789048] ------------[ cut here ]------------ [ 26.793817] WARNING: CPU: 0 PID: 3140 at arch/x86/kvm/x86.c:7265 kvm_arch_vcpu_ioctl_run+0x213/0x5c70 [ 26.803138] Kernel panic - not syncing: panic_on_warn set ... [ 26.803138] [ 26.810463] CPU: 0 PID: 3140 Comm: syz-executor4 Not tainted 4.14.0+ #88 [ 26.817262] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 26.826579] Call Trace: [ 26.829132] dump_stack+0x194/0x257 [ 26.832729] ? arch_local_irq_restore+0x53/0x53 [ 26.837377] panic+0x1e4/0x41c [ 26.840540] ? refcount_error_report+0x214/0x214 [ 26.845258] ? show_regs_print_info+0x65/0x65 [ 26.849729] ? kvm_arch_vcpu_ioctl_run+0x213/0x5c70 [ 26.854726] __warn+0x1c4/0x1e0 [ 26.857971] ? plist_check_head+0xe2/0x130 [ 26.862172] ? kvm_arch_vcpu_ioctl_run+0x213/0x5c70 [ 26.867153] report_bug+0x211/0x2d0 [ 26.870752] fixup_bug.part.12+0x37/0x80 [ 26.874779] do_error_trap+0x2d7/0x3e0 [ 26.878634] ? math_error+0x400/0x400 [ 26.882398] ? lock_acquire+0x1d5/0x580 [ 26.886337] ? fpu__initialize+0xed/0x650 [ 26.890451] ? fpu__save+0x6a0/0x6a0 [ 26.894132] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 26.898946] do_invalid_op+0x1b/0x20 [ 26.902627] invalid_op+0x18/0x20 [ 26.906046] RIP: 0010:kvm_arch_vcpu_ioctl_run+0x213/0x5c70 [ 26.911633] RSP: 0018:ffff8801c8e6f4a0 EFLAGS: 00010297 [ 26.916963] RAX: ffff8801c96de580 RBX: ffff8801cb9fa000 RCX: ffff8801c861105c [ 26.924197] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffff8801c8610e78 [ 26.931430] RBP: ffff8801c8e6f870 R08: 1ffff100390c2a5b R09: 0000000000000001 [ 26.938663] R10: 0000000000000000 R11: ffffffff8726cd60 R12: 0000000000000000 [ 26.945899] R13: ffff8801c96de580 R14: ffff8801cbd5a780 R15: ffff8801c8610c40 [ 26.953161] ? mutex_lock_io_nested+0x1900/0x1900 [ 26.957986] ? kvm_arch_vcpu_runnable+0x560/0x560 [ 26.962798] ? futex_wake+0x680/0x680 [ 26.966565] ? vmx_vcpu_load+0x9c6/0xdd0 [ 26.970592] ? find_held_lock+0x39/0x1d0 [ 26.974622] ? handle_invept+0x5f0/0x5f0 [ 26.978648] ? debug_check_no_locks_freed+0x3d0/0x3d0 [ 26.983807] ? futex_wait_setup+0x3d0/0x3d0 [ 26.988096] ? hash_futex+0x15/0x210 [ 26.991777] ? drop_futex_key_refs.isra.13+0x63/0xb0 [ 26.996845] ? futex_wake+0x2ca/0x680 [ 27.000615] ? kvm_arch_vcpu_load+0x1c1/0x890 [ 27.005071] ? kvm_arch_vcpu_load+0x4b1/0x890 [ 27.009533] ? kvm_arch_end_assignment+0x20/0x20 [ 27.014253] ? kvm_arch_dev_ioctl+0x3b0/0x3b0 [ 27.018713] ? task_rq_unlock+0x90/0x90 [ 27.022665] kvm_vcpu_ioctl+0x64c/0x1010 [ 27.026688] ? kvm_vcpu_ioctl+0x64c/0x1010 [ 27.030888] ? __kvm_gfn_to_hva_cache_init+0xbb0/0xbb0 [ 27.036133] ? lock_downgrade+0x990/0x990 [ 27.040246] ? __fget+0xbb/0x580 [ 27.043581] ? __kernel_text_address+0xd/0x40 [ 27.048045] ? lock_release+0xd90/0xd90 [ 27.051987] ? __lock_is_held+0xbc/0x140 [ 27.056022] ? __fget+0x362/0x580 [ 27.059441] ? putname+0xee/0x130 [ 27.062863] ? iterate_fd+0x3f0/0x3f0 [ 27.066645] ? __fd_install+0x2f7/0x6a0 [ 27.070592] kvm_vcpu_compat_ioctl+0x3c1/0x4c0 [ 27.075144] ? kvm_vcpu_ioctl+0x1010/0x1010 [ 27.079430] ? kvm_read_guest_page+0x130/0x670 [ 27.083974] ? putname+0xee/0x130 [ 27.087392] ? kvm_vm_ioctl+0x1bbb/0x1c40 [ 27.091507] ? putname+0xee/0x130 [ 27.094923] ? rcu_read_lock_sched_held+0x108/0x120 [ 27.099912] ? security_file_ioctl+0x89/0xb0 [ 27.104291] compat_SyS_ioctl+0x1d7/0x3290 [ 27.108494] ? compat_SyS_get_robust_list+0x300/0x300 [ 27.113646] ? kvm_vcpu_ioctl+0x1010/0x1010 [ 27.117933] ? do_ioctl+0x60/0x60 [ 27.121350] ? lock_acquire+0x1d5/0x580 [ 27.125287] ? finish_task_switch+0x1aa/0x740 [ 27.129748] ? do_fast_syscall_32+0x156/0xf9d [ 27.134209] ? do_ioctl+0x60/0x60 [ 27.137632] do_fast_syscall_32+0x3ee/0xf9d [ 27.142005] ? do_raw_spin_trylock+0x190/0x190 [ 27.146554] ? do_int80_syscall_32+0x9d0/0x9d0 [ 27.151106] ? lockdep_sys_exit+0x47/0xf0 [ 27.155220] ? syscall_return_slowpath+0x2ad/0x550 [ 27.160113] ? prepare_exit_to_usermode+0x340/0x340 [ 27.165098] ? sysret32_from_system_call+0x5/0x3b [ 27.169908] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 27.174724] entry_SYSENTER_compat+0x51/0x60 [ 27.179095] RIP: 0023:0xf7f63c79 [ 27.182421] RSP: 002b:00000000f7f5f01c EFLAGS: 00000296 ORIG_RAX: 0000000000000036 [ 27.190093] RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 000000000000ae80 [ 27.197329] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 [ 27.204564] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 [ 27.211796] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 [ 27.219028] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 27.226764] Dumping ftrace buffer: [ 27.230305] (ftrace buffer empty) [ 27.233982] Kernel Offset: disabled [ 27.237575] Rebooting in 86400 seconds..