[?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. [ 17.494613] audit: type=1400 audit(1520540274.597:6): avc: denied { map } for pid=4048 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 '10.128.10.4' (ECDSA) to the list of known hosts. syzkaller login: [ 23.786454] audit: type=1400 audit(1520540280.889:7): avc: denied { map } for pid=4062 comm="syz-execprog" path="/root/syz-execprog" dev="sda1" ino=16479 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:object_r:user_home_t:s0 tclass=file permissive=1 2018/03/08 20:18:01 parsed 1 programs 2018/03/08 20:18:01 executed programs: 0 [ 24.033571] audit: type=1400 audit(1520540281.136:8): avc: denied { map } for pid=4062 comm="syz-execprog" path="/root/syzkaller-shm784803817" dev="sda1" ino=16482 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:object_r:file_t:s0 tclass=file permissive=1 [ 24.062759] IPVS: ftp: loaded support on port[0] = 21 [ 24.097719] kasan: CONFIG_KASAN_INLINE enabled [ 24.102390] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 24.109861] general protection fault: 0000 [#1] SMP KASAN [ 24.115380] Dumping ftrace buffer: [ 24.118891] (ftrace buffer empty) [ 24.122573] Modules linked in: [ 24.125736] CPU: 1 PID: 4071 Comm: syz-executor0 Not tainted 4.16.0-rc4+ #256 [ 24.132976] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 24.142307] RIP: 0010:lowpan_device_event+0xca/0x130 [ 24.147376] RSP: 0018:ffff8801cdebefc0 EFLAGS: 00010206 [ 24.152709] RAX: dffffc0000000000 RBX: 0000000000000000 RCX: ffffffff85aedf10 [ 24.159956] RDX: 0000000000000006 RSI: 0000000000000006 RDI: 0000000000000030 [ 24.167205] RBP: ffff8801cdebefd8 R08: 0000000000000000 R09: 1ffff10039bd7dc6 [ 24.174448] R10: ffff8801cdebefe8 R11: 0000000000000001 R12: 0000000000000006 [ 24.181686] R13: 0000000000000000 R14: ffffffff876992e0 R15: ffffffff87687d60 [ 24.188926] FS: 0000000000000000(0000) GS:ffff8801db300000(0000) knlGS:0000000000000000 [ 24.197120] CS: 0010 DS: 002b ES: 002b CR0: 0000000080050033 [ 24.202972] CR2: 0000000008138024 CR3: 0000000006e22004 CR4: 00000000001606e0 [ 24.210214] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 24.217452] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 24.224692] Call Trace: [ 24.227257] notifier_call_chain+0x136/0x2c0 [ 24.231651] ? raw_notifier_chain_unregister+0x1b0/0x1b0 [ 24.237074] ? generic_xdp_install+0x4d0/0x4d0 [ 24.241635] ? dev_init_scheduler+0x530/0x530 [ 24.246104] ? rtnl_is_locked+0x54/0xb0 [ 24.250051] ? rtnl_kfree_skbs+0x70/0x70 [ 24.254089] raw_notifier_call_chain+0x2d/0x40 [ 24.258641] call_netdevice_notifiers_info+0x32/0x70 [ 24.263715] rollback_registered_many+0x8b5/0xe20 [ 24.268539] ? dev_xdp_uninstall+0x310/0x310 [ 24.272918] ? __lock_acquire+0x664/0x3e00 [ 24.277126] ? lock_acquire+0x1d5/0x580 [ 24.281072] ? trace_hardirqs_off+0x10/0x10 [ 24.285368] ? print_irqtrace_events+0x270/0x270 [ 24.290097] ? print_irqtrace_events+0x270/0x270 [ 24.294823] ? print_irqtrace_events+0x270/0x270 [ 24.299550] rollback_registered+0x1be/0x3c0 [ 24.303927] ? rollback_registered_many+0xe20/0xe20 [ 24.308914] ? __queue_delayed_work+0x226/0x340 [ 24.313555] ? mark_held_locks+0xaf/0x100 [ 24.317672] ? queue_delayed_work_on+0xc9/0x1d0 [ 24.322309] ? rtnl_is_locked+0x54/0xb0 [ 24.326256] ? trace_hardirqs_on+0xd/0x10 [ 24.330374] ? queue_delayed_work_on+0x10d/0x1d0 [ 24.335107] unregister_netdevice_queue+0x2e3/0x5f0 [ 24.340483] ? rollback_registered+0x3c0/0x3c0 [ 24.345038] ? linkwatch_schedule_work+0x130/0x130 [ 24.349937] ? tun_ptr_free+0x3d0/0x3d0 [ 24.353881] ? mark_held_locks+0xaf/0x100 [ 24.358002] ? __lock_is_held+0xb6/0x140 [ 24.362042] ? __local_bh_enable_ip+0x121/0x230 [ 24.366681] ? __tun_detach+0xa4c/0x10b0 [ 24.370710] ? trace_hardirqs_on+0xd/0x10 [ 24.374828] __tun_detach+0x520/0x10b0 [ 24.378689] ? tun_cleanup_tx_ring.part.46+0x550/0x550 [ 24.383937] ? trace_hardirqs_off+0x10/0x10 [ 24.388232] ? locks_remove_file+0x3fa/0x5a0 [ 24.392619] ? fcntl_setlk+0x1100/0x1100 [ 24.396658] ? fsnotify+0x7b3/0x1140 [ 24.400357] ? __tun_detach+0x10b0/0x10b0 [ 24.404477] ? __tun_detach+0x10b0/0x10b0 [ 24.408596] tun_chr_close+0x44/0x60 [ 24.412289] __fput+0x327/0x7e0 [ 24.415541] ? fput+0x140/0x140 [ 24.418793] ? _raw_spin_unlock_irq+0x27/0x70 [ 24.423261] ____fput+0x15/0x20 [ 24.426511] task_work_run+0x199/0x270 [ 24.430368] ? task_work_cancel+0x210/0x210 [ 24.434659] ? _raw_spin_unlock+0x22/0x30 [ 24.438778] ? switch_task_namespaces+0x87/0xc0 [ 24.443419] do_exit+0x9bb/0x1ad0 [ 24.446842] ? lock_downgrade+0x980/0x980 [ 24.450961] ? mm_update_next_owner+0x930/0x930 [ 24.455599] ? __lock_is_held+0xb6/0x140 [ 24.459634] ? tun_get+0x1d4/0x2e0 [ 24.463144] ? tun_do_read+0x26c0/0x26c0 [ 24.467180] ? rtnl_unlock+0xe/0x10 [ 24.470779] ? __tun_chr_ioctl+0x525/0x40d0 [ 24.475078] ? tun_poll_controller+0x4c0/0x4c0 [ 24.479630] ? check_same_owner+0x320/0x320 [ 24.483922] ? handle_mm_fault+0x35b/0xb10 [ 24.488128] ? __might_sleep+0x95/0x190 [ 24.492075] ? _cond_resched+0x14/0x30 [ 24.495939] ? selinux_file_ioctl+0x444/0x690 [ 24.500403] ? __fget_light+0x2b2/0x3c0 [ 24.504356] ? selinux_capable+0x40/0x40 [ 24.508390] ? finish_task_switch+0x4fd/0x7e0 [ 24.512860] ? compat_SyS_futex+0x288/0x380 [ 24.517158] do_group_exit+0x149/0x400 [ 24.521021] ? compat_SyS_get_robust_list+0x300/0x300 [ 24.526181] ? SyS_exit+0x30/0x30 [ 24.529608] ? compat_SyS_ioctl+0x77/0x2a30 [ 24.533901] ? do_fast_syscall_32+0x156/0xf9f [ 24.538367] ? do_group_exit+0x400/0x400 [ 24.542399] SyS_exit_group+0x1d/0x20 [ 24.546170] do_fast_syscall_32+0x3ec/0xf9f [ 24.550464] ? do_int80_syscall_32+0x9c0/0x9c0 [ 24.555021] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 24.559751] ? syscall_return_slowpath+0x2ac/0x550 [ 24.564651] ? prepare_exit_to_usermode+0x350/0x350 [ 24.569638] ? sysret32_from_system_call+0x5/0x3c [ 24.574454] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 24.579283] entry_SYSENTER_compat+0x70/0x7f [ 24.583662] RIP: 0023:0xf7f96c99 [ 24.586998] RSP: 002b:00000000ffa0d42c EFLAGS: 00000282 ORIG_RAX: 00000000000000fc [ 24.594681] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000000000000 [ 24.601924] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 [ 24.609164] RBP: 00000000080a2c25 R08: 0000000000000000 R09: 0000000000000000 [ 24.616404] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 [ 24.623642] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 24.630886] Code: ff df 48 89 fa 48 c1 ea 03 80 3c 02 00 75 59 48 8b 9b 50 03 00 00 48 b8 00 00 00 00 00 fc ff df 48 8d 7b 30 48 89 fa 48 c1 ea 03 <80> 3c 02 00 75 3e 48 8b 5b 30 41 bd 01 00 00 00 48 85 db 74 92 [ 24.649956] RIP: lowpan_device_event+0xca/0x130 RSP: ffff8801cdebefc0 [ 24.656595] ---[ end trace cbbdaf71dd639435 ]--- [ 24.661361] Kernel panic - not syncing: Fatal exception [ 24.667080] Dumping ftrace buffer: [ 24.670599] (ftrace buffer empty) [ 24.674278] Kernel Offset: disabled [ 24.677872] Rebooting in 86400 seconds..