INIT: Entering runlevel: 2 [[36minfo[39;49m] Using makefile-style concurrent boot in runlevel 2. [....] Starting enhanced syslogd: rsyslogd[?25l[?1c7[1G[[32m ok [39;49m8[?25h[?0c. [....] Starting periodic command scheduler: cron[?25l[?1c7[1G[[32m ok [39;49m8[?25h[?0c. [....] Starting OpenBSD Secure Shell server: sshd[?25l[?1c7[1G[[32m ok [39;49m8[?25h[?0c. Debian GNU/Linux 7 syzkaller ttyS0 Warning: Permanently added 'ci-upstream-kasan-gce-386-2,10.128.0.58' (ECDSA) to the list of known hosts. 2017/09/29 21:23:56 parsed 1 programs 2017/09/29 21:23:56 executed programs: 0 syzkaller login: [ 41.181056] kvm: KVM_SET_TSS_ADDR need to be called before entering vcpu [ 43.815421] ------------[ cut here ]------------ [ 43.841201] WARNING: CPU: 1 PID: 3615 at arch/x86/kvm/x86.c:8202 __x86_set_memory_region+0x56e/0x7a0 [ 43.905234] Kernel panic - not syncing: panic_on_warn set ... [ 43.905234] [ 43.912646] CPU: 1 PID: 3615 Comm: syz-executor0 Not tainted 4.14.0-rc2+ #17 [ 43.919825] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 43.929175] Call Trace: [ 43.931766] dump_stack+0x194/0x257 [ 43.935400] ? arch_local_irq_restore+0x53/0x53 [ 43.940086] panic+0x1e4/0x417 [ 43.943279] ? __warn+0x1d9/0x1d9 [ 43.946727] ? show_regs_print_info+0x65/0x65 [ 43.951253] ? __x86_set_memory_region+0x56e/0x7a0 [ 43.956176] __warn+0x1c4/0x1d9 [ 43.959454] ? __x86_set_memory_region+0x56e/0x7a0 [ 43.964385] report_bug+0x211/0x2d0 [ 43.968017] fixup_bug+0x40/0x90 [ 43.971379] do_trap+0x260/0x390 [ 43.974758] do_error_trap+0x120/0x390 [ 43.978646] ? do_trap+0x390/0x390 [ 43.982183] ? rwsem_down_write_failed_killable+0xe/0x10 [ 43.987635] ? __x86_set_memory_region+0x56e/0x7a0 [ 43.992574] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 43.997423] do_invalid_op+0x1b/0x20 [ 44.001131] invalid_op+0x18/0x20 [ 44.004579] RIP: 0010:__x86_set_memory_region+0x56e/0x7a0 [ 44.010101] RSP: 0018:ffff8801cf5bf5e0 EFLAGS: 00010297 [ 44.015460] RAX: ffff8801cd4c2400 RBX: ffff8801cf5bf6e8 RCX: 0000000000000000 [ 44.022724] RDX: 0000000000000000 RSI: 0000000000000002 RDI: ffffed0039eb7e88 [ 44.029985] RBP: ffff8801cf5bf710 R08: ffff8801cf5bee18 R09: 1ffff10039eb7e6f [ 44.037248] R10: ffff8801cd4c2400 R11: 0000000000000001 R12: ffff8801cf5bf6a8 [ 44.044508] R13: 1ffff10039eb7ec1 R14: ffff8801c092e100 R15: 0000000000000000 [ 44.051822] ? msr_io+0x3b0/0x3b0 [ 44.055274] ? irq_calc_affinity_vectors+0x100/0x100 [ 44.060377] ? synchronize_srcu+0x3bf/0x560 [ 44.064723] x86_set_memory_region+0x3e/0x60 [ 44.069143] kvm_arch_destroy_vm+0x7c4/0x990 [ 44.073554] ? kvm_arch_sync_events+0x30/0x30 [ 44.078048] ? mmu_notifier_unregister+0x433/0x5d0 [ 44.082984] ? __mmu_notifier_register+0x30/0x30 [ 44.087737] ? __free_pages+0x107/0x150 [ 44.091717] ? free_hot_cold_page+0x12b0/0x12b0 [ 44.096385] ? quarantine_put+0xeb/0x190 [ 44.100436] ? kfree+0xe4/0x250 [ 44.103713] ? kvm_put_kvm+0x614/0xdf0 [ 44.107604] ? free_pages+0x51/0x90 [ 44.111232] kvm_put_kvm+0x695/0xdf0 [ 44.114958] ? kvm_clear_guest+0xb0/0xb0 [ 44.119019] ? dput.part.24+0x2a/0x740 [ 44.122914] ? up_write+0x6b/0x120 [ 44.126442] ? up_read+0x40/0x40 [ 44.129802] ? mntput+0x66/0x90 [ 44.133075] ? debugfs_remove_recursive+0x48e/0x5e0 [ 44.138086] ? debugfs_remove+0x1f0/0x1f0 [ 44.142241] ? kvm_vm_release+0x50/0x50 [ 44.146211] kvm_vcpu_release+0x7b/0xa0 [ 44.150173] __fput+0x333/0x7f0 [ 44.153446] ? fput+0x140/0x140 [ 44.156714] ? _raw_spin_unlock_irq+0x27/0x70 [ 44.161206] ____fput+0x15/0x20 [ 44.164471] task_work_run+0x199/0x270 [ 44.168349] ? task_work_cancel+0x210/0x210 [ 44.172661] ? exit_to_usermode_loop+0x8c/0x310 [ 44.177332] exit_to_usermode_loop+0x296/0x310 [ 44.181904] ? trace_event_raw_event_sys_exit+0x260/0x260 [ 44.187425] ? lock_acquire+0x1d5/0x580 [ 44.191383] ? finish_task_switch+0x1aa/0x740 [ 44.195863] ? do_fast_syscall_32+0x158/0xf05 [ 44.200355] do_fast_syscall_32+0x83e/0xf05 [ 44.204663] ? compat_start_thread+0x80/0x80 [ 44.209063] ? do_int80_syscall_32+0x940/0x940 [ 44.213641] ? lockdep_sys_exit+0x47/0xf0 [ 44.217776] ? syscall_return_slowpath+0x2b3/0x510 [ 44.222688] ? finish_task_switch+0x1aa/0x740 [ 44.227171] ? prepare_exit_to_usermode+0x2d0/0x2d0 [ 44.232174] ? sysret32_from_system_call+0x5/0x3b [ 44.237013] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 44.241856] entry_SYSENTER_compat+0x51/0x60 [ 44.246246] RIP: 0023:0xf7f3ec79 [ 44.249591] RSP: 002b:00000000f7f1905c EFLAGS: 00000296 ORIG_RAX: 000000000000003f [ 44.257289] RAX: 000000000000000b RBX: 0000000000000009 RCX: 000000000000000b [ 44.264545] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 [ 44.271799] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 [ 44.279050] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 [ 44.286302] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 44.294222] Dumping ftrace buffer: [ 44.297822] (ftrace buffer empty) [ 44.301505] Kernel Offset: disabled [ 44.305110] Rebooting in 86400 seconds..