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-386-1,10.128.15.195' (ECDSA) to the list of known hosts. 2017/11/02 21:53:44 parsed 1 programs 2017/11/02 21:53:44 executed programs: 0 syzkaller login: [ 60.047580] kvm: KVM_SET_TSS_ADDR need to be called before entering vcpu [ 60.050484] ------------[ cut here ]------------ [ 60.051182] WARNING: CPU: 0 PID: 2995 at arch/x86/kvm/x86.c:8202 __x86_set_memory_region+0x56e/0x7a0 [ 60.052432] Kernel panic - not syncing: panic_on_warn set ... [ 60.052432] [ 60.053402] CPU: 0 PID: 2995 Comm: syz-executor0 Not tainted 4.14.0-rc7+ #68 [ 60.054437] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 60.055659] Call Trace: [ 60.056017] dump_stack+0x194/0x257 [ 60.056520] ? arch_local_irq_restore+0x53/0x53 [ 60.057154] panic+0x1e4/0x417 [ 60.057586] ? __warn+0x1d9/0x1d9 [ 60.058051] ? show_regs_print_info+0x65/0x65 [ 60.058679] ? __x86_set_memory_region+0x56e/0x7a0 [ 60.059337] __warn+0x1c4/0x1d9 [ 60.059781] ? __x86_set_memory_region+0x56e/0x7a0 [ 60.060439] report_bug+0x211/0x2d0 [ 60.060936] fixup_bug+0x40/0x90 [ 60.061394] do_trap+0x260/0x390 [ 60.061856] do_error_trap+0x120/0x390 [ 60.062385] ? do_trap+0x390/0x390 [ 60.062862] ? __x86_set_memory_region+0x56e/0x7a0 [ 60.063517] ? __might_sleep+0x95/0x190 [ 60.064058] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 60.064722] do_invalid_op+0x1b/0x20 [ 60.065221] invalid_op+0x18/0x20 [ 60.065686] RIP: 0010:__x86_set_memory_region+0x56e/0x7a0 [ 60.066428] RSP: 0018:ffff8801d1c875e0 EFLAGS: 00010297 [ 60.067139] RAX: ffff8801d2192300 RBX: ffff8801d1c876e8 RCX: 1ffff1003a390e85 [ 60.070693] RDX: 0000000000000000 RSI: ffff8801d1c87568 RDI: ffff8801d1f35940 [ 60.077932] RBP: ffff8801d1c87710 R08: 0000000000000001 R09: 1ffff1003a390e77 [ 60.085169] R10: ffff8801d1c87380 R11: 0000000000000001 R12: ffff8801d1c876a8 [ 60.092408] R13: 1ffff1003a390ec1 R14: ffff8801d1fc0140 R15: 0000000000000000 [ 60.099674] ? msr_io+0x3b0/0x3b0 [ 60.103100] ? synchronize_srcu+0x3bf/0x560 [ 60.107406] x86_set_memory_region+0x3e/0x60 [ 60.111785] kvm_arch_destroy_vm+0x7c4/0x990 [ 60.116166] ? kvm_arch_sync_events+0x30/0x30 [ 60.120635] ? mmu_notifier_unregister+0x433/0x5d0 [ 60.125537] ? __mmu_notifier_register+0x30/0x30 [ 60.130261] ? __free_pages+0x107/0x150 [ 60.134201] ? free_hot_cold_page+0x12b0/0x12b0 [ 60.138838] ? quarantine_put+0xeb/0x190 [ 60.142864] ? kfree+0xe4/0x250 [ 60.146110] ? kvm_put_kvm+0x614/0xdf0 [ 60.149967] ? free_pages+0x51/0x90 [ 60.153564] kvm_put_kvm+0x695/0xdf0 [ 60.157251] ? kvm_clear_guest+0xb0/0xb0 [ 60.161276] ? dput.part.24+0x2a/0x740 [ 60.165135] ? up_write+0x6b/0x120 [ 60.168645] ? up_read+0x40/0x40 [ 60.171981] ? mntput+0x66/0x90 [ 60.175234] ? debugfs_remove_recursive+0x48e/0x5e0 [ 60.180223] ? debugfs_remove+0x1f0/0x1f0 [ 60.184344] ? kvm_vm_release+0x50/0x50 [ 60.188285] kvm_vcpu_release+0x7b/0xa0 [ 60.192226] __fput+0x327/0x7e0 [ 60.195477] ? fput+0x140/0x140 [ 60.198726] ? _raw_spin_unlock_irq+0x27/0x70 [ 60.203192] ____fput+0x15/0x20 [ 60.206436] task_work_run+0x199/0x270 [ 60.210292] ? task_work_cancel+0x210/0x210 [ 60.214583] ? exit_to_usermode_loop+0x8c/0x310 [ 60.219222] exit_to_usermode_loop+0x296/0x310 [ 60.223771] ? trace_event_raw_event_sys_exit+0x260/0x260 [ 60.229276] ? do_fast_syscall_32+0x158/0xf05 [ 60.233743] do_fast_syscall_32+0x83e/0xf05 [ 60.238038] ? do_int80_syscall_32+0x940/0x940 [ 60.242588] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 60.247312] ? syscall_return_slowpath+0x2b3/0x510 [ 60.252211] ? prepare_exit_to_usermode+0x2d0/0x2d0 [ 60.257196] ? sysret32_from_system_call+0x5/0x3b [ 60.262008] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 60.266822] entry_SYSENTER_compat+0x51/0x60 [ 60.271194] RIP: 0023:0xf7f78c79 [ 60.274522] RSP: 002b:00000000ffc7f57c EFLAGS: 00000292 ORIG_RAX: 000000000000014a [ 60.282197] RAX: 0000000000000005 RBX: 0000000000000000 RCX: 0000000000000005 [ 60.289435] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 [ 60.296670] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 [ 60.303905] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 [ 60.311140] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 60.318884] Dumping ftrace buffer: [ 60.322438] (ftrace buffer empty) [ 60.326116] Kernel Offset: disabled [ 60.329713] Rebooting in 86400 seconds..