[?25l[?1c7[ ok 8[?25h[?0c. Starting mcstransd: [....] Starting periodic command scheduler: cron[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting file context maintaining daemon: restorecond[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting OpenBSD Secure Shell server: sshd[?25l[?1c7[ ok 8[?25h[?0c. [ 12.556347] audit: type=1400 audit(1515251928.104:6): avc: denied { map } for pid=3455 comm="bash" path="/bin/bash" dev="sda1" ino=1457 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=system_u:object_r:file_t:s0 tclass=file permissive=1 Debian GNU/Linux 7 syzkaller ttyS0 Warning: Permanently added '10.128.0.17' (ECDSA) to the list of known hosts. syzkaller login: [ 55.010425] audit: type=1400 audit(1515251970.558:7): avc: denied { map } for pid=3474 comm="syzkaller482226" path="/root/syzkaller482226357" dev="sda1" ino=16481 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:object_r:user_home_t:s0 tclass=file permissive=1 [ 55.036835] audit: type=1400 audit(1515251970.560:8): avc: denied { sys_admin } for pid=3474 comm="syzkaller482226" capability=21 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tclass=cap_userns permissive=1 executing program executing program [ 55.220401] audit: type=1400 audit(1515251970.768:9): avc: denied { sys_chroot } for pid=3475 comm="syzkaller482226" capability=18 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tclass=cap_userns permissive=1 [ 55.256251] kvm: KVM_SET_TSS_ADDR need to be called before entering vcpu executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 58.267344] kasan: CONFIG_KASAN_INLINE enabled [ 58.271965] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 58.279295] general protection fault: 0000 [#1] SMP KASAN [ 58.284808] Dumping ftrace buffer: [ 58.288324] (ftrace buffer empty) [ 58.292003] Modules linked in: [ 58.295168] CPU: 0 PID: 1772 Comm: udevd Not tainted 4.15.0-rc6+ #159 [ 58.301713] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 58.311044] RIP: 0010:native_write_cr4+0x4/0x10 [ 58.315677] RSP: 0018:ffff8801db207550 EFLAGS: 00010006 [ 58.321011] RAX: ffff8801d01700c0 RBX: 00000000001606f0 RCX: ffffffff811a32c2 [ 58.328257] RDX: 0000000000010100 RSI: 0000000000000000 RDI: 00000000001606f0 [ 58.335495] RBP: ffff8801db207550 R08: 0000000000000000 R09: 0000000000000000 [ 58.342742] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000006 [ 58.349980] R13: ffff8801d01700c0 R14: ffff8801db21d130 R15: ffff8801db21d130 [ 58.357219] FS: 00007fea031fe7a0(0000) GS:ffff8801db200000(0000) knlGS:0000000000000000 [ 58.365420] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 58.371269] CR2: 00007fea03205000 CR3: 00000001d00c5001 CR4: 00000000001626f0 [ 58.378519] Call Trace: [ 58.381071] [ 58.383194] hardware_disable+0x34a/0x4b0 [ 58.387319] ? kvm_io_bus_get_dev+0x2a0/0x2a0 [ 58.391784] kvm_arch_hardware_disable+0x35/0xd0 [ 58.396515] hardware_disable_nolock+0x30/0x40 [ 58.401067] flush_smp_call_function_queue+0x1f4/0x570 [ 58.406312] ? kernel_text_address+0x102/0x140 [ 58.410863] ? cpumask_weight+0x40/0x40 [ 58.414805] ? unwind_get_return_address+0x61/0xa0 [ 58.419706] ? __save_stack_trace+0x7e/0xd0 [ 58.423999] ? __lock_is_held+0xb6/0x140 [ 58.428038] generic_smp_call_function_single_interrupt+0x13/0x30 [ 58.434237] smp_call_function_single_interrupt+0x103/0x640 [ 58.439918] ? smp_call_function_interrupt+0x640/0x640 [ 58.445161] ? finish_task_switch+0x1d3/0x740 [ 58.449624] ? __schedule+0x8f3/0x2060 [ 58.453483] ? schedule+0xf5/0x430 [ 58.456992] ? schedule_hrtimeout_range_clock+0x388/0x460 [ 58.462497] ? schedule_hrtimeout_range+0x2a/0x40 [ 58.467307] ? ep_poll+0xa04/0x1190 [ 58.470908] ? SyS_epoll_wait+0x167/0x1c0 [ 58.475023] ? entry_SYSCALL_64_fastpath+0x23/0x9a [ 58.479926] ? free_obj_work+0x690/0x690 [ 58.483958] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 58.488771] ? inode_free_rcu+0x1d/0x20 [ 58.492721] call_function_single_interrupt+0xa9/0xb0 [ 58.497878] RIP: 0010:kmem_cache_free+0x17c/0x2a0 [ 58.502684] RSP: 0018:ffff8801db207950 EFLAGS: 00000282 ORIG_RAX: ffffffffffffff04 [ 58.510359] RAX: 0000000000000007 RBX: ffff8801d574d380 RCX: 0000000000000002 [ 58.517596] RDX: 0000000000000000 RSI: ffff8801d0170938 RDI: 0000000000000282 [ 58.524833] RBP: ffff8801db207970 R08: 0000000000000000 R09: 0000000000000000 [ 58.532070] R10: 0000000000000000 R11: 0000000000000000 R12: ffff8801dae27240 [ 58.539307] R13: 0000000000000282 R14: ffffffff821ef27d R15: ffff8801db207c58 [ 58.546548] ? inode_free_rcu+0x1d/0x20 [ 58.550499] ? selinux_file_free_security+0x60/0x60 [ 58.555482] inode_free_rcu+0x1d/0x20 [ 58.559255] rcu_process_callbacks+0xd6c/0x17f0 [ 58.563898] ? note_gp_changes+0x650/0x650 [ 58.568103] ? timerqueue_add+0x1e9/0x280 [ 58.572222] ? enqueue_hrtimer+0x171/0x4a0 [ 58.576425] ? __remove_hrtimer+0x190/0x190 [ 58.580720] ? find_held_lock+0x35/0x1d0 [ 58.584762] ? lock_downgrade+0x980/0x980 [ 58.588883] ? rcu_pm_notify+0xc0/0xc0 [ 58.592752] __do_softirq+0x2d7/0xb85 [ 58.596522] ? lock_downgrade+0x980/0x980 [ 58.600638] ? __irqentry_text_end+0x1f8d74/0x1f8d74 [ 58.605709] ? do_timer+0x50/0x50 [ 58.609130] ? native_apic_msr_write+0x5c/0x80 [ 58.613682] ? do_raw_spin_trylock+0x190/0x190 [ 58.618231] ? lapic_next_event+0x54/0x80 [ 58.622348] ? clockevents_program_event+0x108/0x2e0 [ 58.627421] ? tick_program_event+0x83/0x100 [ 58.631804] ? hrtimer_interrupt+0x46e/0x5e0 [ 58.636180] ? rcu_pm_notify+0xc0/0xc0 [ 58.640043] irq_exit+0x1cc/0x200 [ 58.643462] smp_apic_timer_interrupt+0x16b/0x700 [ 58.648270] ? smp_call_function_single_interrupt+0x124/0x640 [ 58.654122] ? smp_call_function_single_interrupt+0x640/0x640 [ 58.659973] ? _raw_spin_lock+0x32/0x40 [ 58.663928] ? _raw_spin_unlock+0x22/0x30 [ 58.668048] ? handle_edge_irq+0x2b4/0x7c0 [ 58.672251] ? task_prio+0x40/0x40 [ 58.675764] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 58.680576] apic_timer_interrupt+0xa9/0xb0 [ 58.684861] [ 58.687086] RIP: 0010:_raw_spin_unlock_irq+0x56/0x70 [ 58.692155] RSP: 0018:ffff8801d017f5e8 EFLAGS: 00000282 ORIG_RAX: ffffffffffffff11 [ 58.699831] RAX: dffffc0000000000 RBX: ffff8801db22c240 RCX: 0000000000000000 [ 58.707069] RDX: 1ffffffff0d19077 RSI: 0000000000000001 RDI: ffffffff868c83b8 [ 58.714306] RBP: ffff8801d017f5f0 R08: 0000000000000000 R09: 0000000000000000 [ 58.721541] R10: 0000000000000000 R11: 0000000000000000 R12: ffff8801c2b4a2c0 [ 58.728780] R13: 1ffff1003a02fec6 R14: ffff8801d01700c0 R15: ffff8801d01700c0 [ 58.736033] ? _raw_spin_unlock_irq+0x27/0x70 [ 58.740496] finish_task_switch+0x1d3/0x740 [ 58.744784] ? finish_task_switch+0x1aa/0x740 [ 58.749255] ? copy_overflow+0x20/0x20 [ 58.753119] __schedule+0x8f3/0x2060 [ 58.756805] ? __sched_text_start+0x8/0x8 [ 58.760931] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 58.765919] ? mutex_unlock+0xd/0x10 [ 58.769602] ? ep_scan_ready_list+0x9f6/0xea0 [ 58.774080] ? ep_eventpoll_release+0x60/0x60 [ 58.778542] ? netlink_getsockbyfilp+0x120/0x120 [ 58.783264] ? check_noncircular+0x20/0x20 [ 58.787465] ? do_raw_spin_trylock+0x190/0x190 [ 58.792018] schedule+0xf5/0x430 [ 58.795354] ? refcount_inc+0x50/0x50 [ 58.799121] ? trace_hardirqs_on+0xd/0x10 [ 58.803235] ? __schedule+0x2060/0x2060 [ 58.807178] ? skb_queue_tail+0xe5/0x150 [ 58.811216] ? find_held_lock+0x35/0x1d0 [ 58.815254] schedule_hrtimeout_range_clock+0x388/0x460 [ 58.820585] ? hrtimer_nanosleep_restart+0x190/0x190 [ 58.825656] ? netlink_sendmsg+0x6c5/0xe60 [ 58.829858] ? do_raw_spin_trylock+0x190/0x190 [ 58.834408] ? _raw_spin_unlock_irqrestore+0x31/0xba [ 58.839482] schedule_hrtimeout_range+0x2a/0x40 [ 58.844121] ep_poll+0xa04/0x1190 [ 58.847547] ? ep_send_events_proc+0xc80/0xc80 [ 58.852100] ? save_stack+0x43/0xd0 [ 58.855693] ? kasan_slab_free+0x71/0xc0 [ 58.859723] ? kmem_cache_free+0x83/0x2a0 [ 58.863840] ? remove_vma+0x162/0x1b0 [ 58.867606] ? do_munmap+0x82a/0xdf0 [ 58.871285] ? vm_munmap+0x10b/0x180 [ 58.874969] ? debug_check_no_obj_freed+0x3da/0xf1f [ 58.879954] ? unmap_region+0x35c/0x4f0 [ 58.883898] ? __fget_light+0x297/0x380 [ 58.887849] ? vm_munmap+0x116/0x180 [ 58.891537] ? __fdget+0x18/0x20 [ 58.894874] ? __fget_light+0x297/0x380 [ 58.898820] ? up_read+0x40/0x40 [ 58.902153] ? do_munmap+0x4e2/0xdf0 [ 58.905837] ? wake_up_q+0xe0/0xe0 [ 58.909346] ? entry_SYSCALL_64_fastpath+0x5/0x9a [ 58.914160] SyS_epoll_wait+0x167/0x1c0 [ 58.918104] entry_SYSCALL_64_fastpath+0x23/0x9a [ 58.922825] RIP: 0033:0x7fea02912943 [ 58.926502] RSP: 002b:00007ffda0f474c8 EFLAGS: 00000246 ORIG_RAX: 00000000000000e8 [ 58.934177] RAX: ffffffffffffffda RBX: 00000000006990b0 RCX: 00007fea02912943 [ 58.941414] RDX: 0000000000000008 RSI: 00007ffda0f475c0 RDI: 000000000000000a [ 58.948651] RBP: 0000000000000000 R08: 00007fea031fe7a0 R09: 0000000000000000 [ 58.955889] R10: 00000000ffffffff R11: 0000000000000246 R12: 00000000ffffffff [ 58.963134] R13: 00000000006990b0 R14: 0000000000000006 R15: 0000000000000ae8 [ 58.970389] Code: 0f 1f 80 00 00 00 00 55 48 89 e5 0f 20 d8 5d c3 0f 1f 80 00 00 00 00 55 48 89 e5 0f 22 df 5d c3 0f 1f 80 00 00 00 00 55 48 89 e5 <0f> 22 e7 5d c3 0f 1f 80 00 00 00 00 55 48 89 e5 44 0f 20 c0 5d [ 58.989479] RIP: native_write_cr4+0x4/0x10 RSP: ffff8801db207550 [ 58.995600] ---[ end trace 1002f9467ed3a9b9 ]--- [ 59.000323] Kernel panic - not syncing: Fatal exception in interrupt [ 59.007228] Dumping ftrace buffer: [ 59.010733] (ftrace buffer empty) [ 59.014420] Kernel Offset: disabled [ 59.018014] Rebooting in 86400 seconds..