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-386-1,10.128.0.18' (ECDSA) to the list of known hosts. 2017/09/23 07:21:03 parsed 1 programs 2017/09/23 07:21:03 executed programs: 0 syzkaller login: [ 60.079541] kvm: KVM_SET_TSS_ADDR need to be called before entering vcpu 2017/09/23 07:21:08 executed programs: 104 2017/09/23 07:21:13 executed programs: 212 2017/09/23 07:21:18 executed programs: 322 2017/09/23 07:21:23 executed programs: 432 [ 84.406362] ------------[ cut here ]------------ [ 84.411511] WARNING: CPU: 0 PID: 5086 at arch/x86/kvm/x86.c:8202 __x86_set_memory_region+0x56e/0x7a0 [ 84.420818] Kernel panic - not syncing: panic_on_warn set ... [ 84.420818] [ 84.428161] CPU: 0 PID: 5086 Comm: syz-executor0 Not tainted 4.14.0-rc1+ #6 [ 84.435235] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 84.444566] Call Trace: [ 84.447133] dump_stack+0x194/0x257 [ 84.450740] ? arch_local_irq_restore+0x53/0x53 [ 84.455410] panic+0x1e4/0x417 [ 84.458577] ? __warn+0x1d9/0x1d9 [ 84.462009] ? show_regs_print_info+0x65/0x65 [ 84.466491] ? __x86_set_memory_region+0x56e/0x7a0 [ 84.471391] __warn+0x1c4/0x1d9 [ 84.474643] ? __x86_set_memory_region+0x56e/0x7a0 [ 84.479558] report_bug+0x211/0x2d0 [ 84.483178] fixup_bug+0x40/0x90 [ 84.486527] do_trap+0x260/0x390 [ 84.489874] do_error_trap+0x120/0x390 [ 84.493738] ? do_trap+0x390/0x390 [ 84.497259] ? rwsem_down_write_failed_killable+0xe/0x10 [ 84.502689] ? __x86_set_memory_region+0x56e/0x7a0 [ 84.507611] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 84.512434] do_invalid_op+0x1b/0x20 [ 84.516129] invalid_op+0x18/0x20 [ 84.519559] RIP: 0010:__x86_set_memory_region+0x56e/0x7a0 [ 84.525066] RSP: 0018:ffff8801d871f140 EFLAGS: 00010297 [ 84.530406] RAX: ffff8801d4fcc380 RBX: ffff8801d871f248 RCX: 0000000000000000 [ 84.537650] RDX: 0000000000000000 RSI: 0000000000000002 RDI: ffffed003b0e3df8 [ 84.544892] RBP: ffff8801d871f270 R08: ffff8801d871e978 R09: 1ffff1003b0e3ddb [ 84.552134] R10: ffff8801d4fcc380 R11: 0000000000000001 R12: ffff8801d871f208 [ 84.559380] R13: 1ffff1003b0e3e2d R14: ffff8801b3389240 R15: 0000000000000000 [ 84.566644] ? msr_io+0x3b0/0x3b0 [ 84.570071] ? irq_calc_affinity_vectors+0x100/0x100 [ 84.575149] ? synchronize_srcu+0x3bf/0x560 [ 84.579461] x86_set_memory_region+0x3e/0x60 [ 84.583845] kvm_arch_destroy_vm+0x7c4/0x990 [ 84.588230] ? kvm_arch_sync_events+0x30/0x30 [ 84.592701] ? mmu_notifier_unregister+0x433/0x5d0 [ 84.597604] ? __mmu_notifier_register+0x30/0x30 [ 84.602335] ? __free_pages+0x107/0x150 [ 84.606296] ? free_hot_cold_page+0x12b0/0x12b0 [ 84.610938] ? quarantine_put+0xeb/0x190 [ 84.614973] ? kfree+0xe4/0x250 [ 84.618225] ? kvm_put_kvm+0x614/0xdf0 [ 84.622087] ? free_pages+0x51/0x90 [ 84.626381] kvm_put_kvm+0x695/0xdf0 [ 84.630079] ? kvm_clear_guest+0xb0/0xb0 [ 84.634113] ? dput.part.24+0x2a/0x740 [ 84.637982] ? up_write+0x6b/0x120 [ 84.641493] ? up_read+0x40/0x40 [ 84.644834] ? mntput+0x66/0x90 [ 84.648095] ? debugfs_remove_recursive+0x48e/0x5e0 [ 84.653088] ? debugfs_remove+0x1f0/0x1f0 [ 84.657215] ? kvm_vm_release+0x50/0x50 [ 84.661176] kvm_vcpu_release+0x7b/0xa0 [ 84.665123] __fput+0x333/0x7f0 [ 84.668383] ? fput+0x140/0x140 [ 84.671638] ? _raw_spin_unlock_irq+0x27/0x70 [ 84.676110] ____fput+0x15/0x20 [ 84.679360] task_work_run+0x199/0x270 [ 84.683223] ? task_work_cancel+0x210/0x210 [ 84.687519] ? kvm_vcpu_ioctl+0x2be/0x1010 [ 84.691733] get_signal+0x143d/0x17e0 [ 84.695505] ? kvm_vcpu_ioctl+0x2c3/0x1010 [ 84.699713] ? __kvm_gfn_to_hva_cache_init+0xbb0/0xbb0 [ 84.704958] ? lock_downgrade+0x990/0x990 [ 84.709076] ? fd_install+0x4d/0x60 [ 84.712676] ? __fget+0xbb/0x580 [ 84.716018] ? lock_release+0xd70/0xd70 [ 84.719964] ? ptrace_notify+0x130/0x130 [ 84.723993] ? __lock_is_held+0xbc/0x140 [ 84.728040] ? __fget+0x362/0x580 [ 84.731472] ? iterate_fd+0x3f0/0x3f0 [ 84.735251] do_signal+0x94/0x1ee0 [ 84.738769] ? __might_sleep+0x95/0x190 [ 84.742720] ? setup_sigcontext+0x7d0/0x7d0 [ 84.747020] ? kvm_vcpu_compat_ioctl+0x200/0x4c0 [ 84.751751] ? task_work_add+0x10e/0x1b0 [ 84.755785] ? cpumask_weight.constprop.3+0x45/0x45 [ 84.760772] ? rcu_read_lock_sched_held+0x108/0x120 [ 84.765767] ? exit_to_usermode_loop+0x98/0x300 [ 84.770411] exit_to_usermode_loop+0x224/0x300 [ 84.774959] ? kvm_vcpu_ioctl+0x1010/0x1010 [ 84.779254] ? trace_event_raw_event_sys_exit+0x260/0x260 [ 84.784763] ? lock_acquire+0x1d5/0x580 [ 84.788708] ? finish_task_switch+0x1aa/0x740 [ 84.793175] ? do_fast_syscall_32+0x158/0xeed [ 84.797649] do_fast_syscall_32+0x83e/0xeed [ 84.801943] ? compat_start_thread+0x80/0x80 [ 84.806326] ? do_int80_syscall_32+0x930/0x930 [ 84.810882] ? lockdep_sys_exit+0x47/0xf0 [ 84.815004] ? syscall_return_slowpath+0x2b3/0x500 [ 84.819900] ? finish_task_switch+0x1aa/0x740 [ 84.824365] ? prepare_exit_to_usermode+0x2c0/0x2c0 [ 84.829354] ? sysret32_from_system_call+0x5/0x3b [ 84.834171] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 84.838995] entry_SYSENTER_compat+0x51/0x60 [ 84.843375] RIP: 0023:0xf7f69c79 [ 84.846708] RSP: 002b:00000000f7f6505c EFLAGS: 00000296 ORIG_RAX: 0000000000000036 [ 84.854388] RAX: fffffffffffffffc RBX: 0000000000000005 RCX: 000000000000ae80 [ 84.861629] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 [ 84.868881] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 [ 84.876136] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 [ 84.883377] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 84.890876] Dumping ftrace buffer: [ 84.894470] (ftrace buffer empty) [ 84.898158] Kernel Offset: disabled [ 84.901765] Rebooting in 86400 seconds..