[ 32.138271] audit: type=1800 audit(1560577432.570:33): pid=6842 uid=0 auid=4294967295 ses=4294967295 subj=system_u:system_r:kernel_t:s0 op="collect_data" cause="failed(directio)" comm="startpar" name="rc.local" dev="sda1" ino=2465 res=0 [ 32.165661] audit: type=1800 audit(1560577432.570:34): pid=6842 uid=0 auid=4294967295 ses=4294967295 subj=system_u:system_r:kernel_t:s0 op="collect_data" cause="failed(directio)" comm="startpar" name="rmnologin" dev="sda1" ino=2456 res=0 Debian GNU/Linux 7 syzkaller ttyS0 syzkaller login: [ 36.977438] random: sshd: uninitialized urandom read (32 bytes read) [ 37.387576] audit: type=1400 audit(1560577437.820:35): avc: denied { map } for pid=7014 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 [ 37.438288] random: sshd: uninitialized urandom read (32 bytes read) [ 38.015869] random: sshd: uninitialized urandom read (32 bytes read) [ 38.219030] random: sshd: uninitialized urandom read (32 bytes read) Warning: Permanently added '10.128.0.81' (ECDSA) to the list of known hosts. [ 43.737135] random: sshd: uninitialized urandom read (32 bytes read) [ 43.853826] audit: type=1400 audit(1560577444.290:36): avc: denied { map } for pid=7026 comm="syz-executor815" path="/root/syz-executor815317079" dev="sda1" ino=16483 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:object_r:user_home_t:s0 tclass=file permissive=1 [ 44.590198] IPVS: ftp: loaded support on port[0] = 21 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 [ 45.540426] IPVS: ftp: loaded support on port[0] = 21 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 [ 45.801281] kobject_add_internal failed for hci1 (error: -2 parent: bluetooth) [ 45.811792] Bluetooth: Can't register HCI device 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 [ 46.361556] IPVS: ftp: loaded support on port[0] = 21 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 [ 46.877169] kobject_add_internal failed for hci1 (error: -2 parent: bluetooth) [ 46.885682] Bluetooth: Can't register HCI device 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 [ 47.190682] IPVS: ftp: loaded support on port[0] = 21 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 [ 48.031701] IPVS: ftp: loaded support on port[0] = 21 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 [ 48.831990] kobject_add_internal failed for hci1 (error: -2 parent: bluetooth) [ 48.856081] Bluetooth: Can't register HCI device executing program executing program executing program executing program [ 48.910929] IPVS: ftp: loaded support on port[0] = 21 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 [ 49.511763] kobject_add_internal failed for hci0 (error: -2 parent: bluetooth) [ 49.529656] Bluetooth: Can't register HCI device 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 [ 49.691398] kobject_add_internal failed for hci1 (error: -2 parent: bluetooth) [ 49.725242] Bluetooth: Can't register HCI device 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 executing program executing program executing program executing program executing program executing program executing program [ 50.786486] kobject_add_internal failed for hci2 (error: -2 parent: bluetooth) [ 50.814070] Bluetooth: Can't register HCI device 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 [ 51.315044] kobject_add_internal failed for hci0 (error: -2 parent: bluetooth) [ 51.342654] Bluetooth: Can't register HCI device 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 [ 51.454585] kobject_add_internal failed for hci3 (error: -2 parent: bluetooth) [ 51.468360] Bluetooth: Can't register HCI device executing program executing program executing program executing program executing program executing program executing program executing program [ 51.575223] ------------[ cut here ]------------ [ 51.580034] WARNING: CPU: 1 PID: 9023 at fs/kernfs/dir.c:494 kernfs_get+0x58/0x70 [ 51.587666] Kernel panic - not syncing: panic_on_warn set ... [ 51.587666] [ 51.588145] kobject: 'bluetooth' (ffff88809fcccb80): kobject_add_internal: parent: 'virtual', set: '(null)' [ 51.595038] CPU: 1 PID: 9023 Comm: syz-executor815 Not tainted 4.14.125 #19 [ 51.595044] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 51.595047] Call Trace: [ 51.595066] dump_stack+0x138/0x19c [ 51.595076] panic+0x1f2/0x426 [ 51.595083] ? add_taint.cold+0x16/0x16 [ 51.595094] ? kernfs_get+0x58/0x70 [ 51.595104] ? kernfs_get+0x58/0x70 [ 51.595111] __warn.cold+0x2f/0x36 [ 51.595119] ? ist_end_non_atomic+0x10/0x10 [ 51.595126] ? kernfs_get+0x58/0x70 [ 51.595136] report_bug+0x216/0x254 [ 51.595145] do_error_trap+0x1bb/0x310 [ 51.595152] ? math_error+0x360/0x360 [ 51.595159] ? save_trace+0x290/0x290 [ 51.595166] ? __fprop_inc_percpu_max+0x1e0/0x1e0 [ 51.595176] ? __kernfs_new_node+0x141/0x420 [ 51.632122] kobject: 'hci2' (ffff88808d589868): kobject_add_internal: parent: 'bluetooth', set: 'devices' [ 51.634996] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 51.635012] do_invalid_op+0x1b/0x20 [ 51.638854] kobject: 'hci2' (ffff88808d589868): kobject_uevent_env [ 51.642255] invalid_op+0x1b/0x40 [ 51.642266] RIP: 0010:kernfs_get+0x58/0x70 [ 51.642270] RSP: 0018:ffff88808ef67978 EFLAGS: 00010297 [ 51.642277] RAX: ffff88809722c6c0 RBX: ffff88807d4267e0 RCX: 0000000000000000 [ 51.642281] RDX: 0000000000000000 RSI: 0000000000000002 RDI: ffff88807d4267e0 [ 51.642286] RBP: ffff88808ef67980 R08: ffff88809722c6c0 R09: 0000000000000001 [ 51.642290] R10: 0000000000000000 R11: ffff88809722c6c0 R12: ffff88807cfeca80 [ 51.642294] R13: ffff8880a8fa3140 R14: 0000000000000001 R15: 00000000000041ed [ 51.642311] ? kernfs_get+0x58/0x70 [ 51.642320] kernfs_new_node+0x95/0xf0 [ 51.647342] kobject: 'hci1' (ffff88808de158e8): kobject_add_internal: parent: 'bluetooth', set: 'devices' [ 51.650172] kernfs_create_dir_ns+0x41/0x140 [ 51.650182] sysfs_create_dir_ns+0xbe/0x1d0 [ 51.650193] kobject_add_internal.part.0.cold+0x114/0x5ae [ 51.650203] kobject_add+0x11f/0x180 [ 51.650210] ? kset_create_and_add+0x180/0x180 [ 51.650222] ? mutex_unlock+0xd/0x10 [ 51.650234] device_add+0x383/0x1490 [ 51.653953] kobject: 'hci2' (ffff88808d589868): fill_kobj_path: path = '/devices/virtual/bluetooth/hci2' [ 51.657474] ? device_initialize+0x430/0x430 [ 51.657484] ? device_private_init+0x190/0x190 [ 51.657497] hci_register_dev+0x2d9/0x810 [ 51.670557] kobject: 'hci1' (ffff88808de158e8): kobject_uevent_env [ 51.673777] ? hci_init_sysfs+0x7c/0xa0 [ 51.673793] __vhci_create_device+0x2a6/0x560 [ 51.673804] vhci_write+0x2a1/0x437 [ 51.681271] kobject: 'rfkill1264' (ffff888091dbe528): kobject_add_internal: parent: 'hci2', set: 'devices' [ 51.687923] __vfs_write+0x4a7/0x6b0 [ 51.687935] ? kernel_read+0x120/0x120 [ 51.687955] ? rw_verify_area+0xea/0x2b0 [ 51.687964] vfs_write+0x198/0x500 [ 51.687973] SyS_write+0xfd/0x230 [ 51.695336] kobject: 'hci1' (ffff88808de158e8): fill_kobj_path: path = '/devices/virtual/bluetooth/hci1' [ 51.696581] ? SyS_read+0x230/0x230 [ 51.696592] ? do_syscall_64+0x53/0x640 [ 51.696600] ? SyS_read+0x230/0x230 [ 51.696610] do_syscall_64+0x1e8/0x640 [ 51.721203] kobject: 'rfkill1264' (ffff888091dbe528): kobject_uevent_env [ 51.723394] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 51.723410] entry_SYSCALL_64_after_hwframe+0x42/0xb7 [ 51.723417] RIP: 0033:0x4467f9 [ 51.723425] RSP: 002b:00007fe8fe960db8 EFLAGS: 00000246 [ 51.747577] kobject: 'rfkill1264' (ffff888091dbe528): fill_kobj_path: path = '/devices/virtual/bluetooth/hci2/rfkill1264' [ 51.752564] ORIG_RAX: 0000000000000001 [ 51.752570] RAX: ffffffffffffffda RBX: 00000000006dbc28 RCX: 00000000004467f9 [ 51.752575] RDX: 0000000000000002 RSI: 00000000200000c0 RDI: 0000000000000003 [ 51.752579] RBP: 00000000006dbc20 R08: 0000000000000000 R09: 0000000000000000 [ 51.752584] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000006dbc2c [ 51.752589] R13: 00007fff9e51ca4f R14: 00007fe8fe9619c0 R15: 0000000000000064 [ 51.757219] Kernel Offset: disabled [ 51.975052] Rebooting in 86400 seconds..