[ 42.904028] audit: type=1800 audit(1551902680.987:30): pid=7909 uid=0 auid=4294967295 ses=4294967295 subj=system_u:system_r:kernel_t:s0 op=collect_data cause=failed(directio) comm="startpar" name="mcstrans" dev="sda1" ino=2457 res=0 [....] Starting periodic command scheduler: cron[?25l[?1c7[ ok 8[?25h[?0c. Starting mcstransd: [....] Starting file context maintaining daemon: restorecond[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting OpenBSD Secure Shell server: sshd[?25l[?1c7[ ok 8[?25h[?0c. Debian GNU/Linux 7 syzkaller ttyS0 syzkaller login: [ 46.799046] kauditd_printk_skb: 4 callbacks suppressed [ 46.799061] audit: type=1400 audit(1551902684.917:35): avc: denied { map } for pid=8082 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 Warning: Permanently added '10.128.0.247' (ECDSA) to the list of known hosts. executing program executing program executing program executing program executing program executing program executing program [ 67.371119] audit: type=1400 audit(1551902705.487:36): avc: denied { map } for pid=8094 comm="syz-executor237" path="/root/syz-executor237478388" 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 [ 67.405833] kobject_add_internal failed for hci0 (error: -2 parent: bluetooth) executing program executing program executing program executing program executing program [ 67.419490] 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 [ 67.465772] kobject_add_internal failed for hci1 (error: -2 parent: bluetooth) [ 67.501536] 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 [ 67.574553] kobject_add_internal failed for hci2 (error: -2 parent: bluetooth) executing program executing program executing program executing program executing program [ 67.614824] 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 executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 68.178391] kobject_add_internal failed for hci3 (error: -2 parent: bluetooth) [ 68.190571] 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 [ 68.279614] kobject_add_internal failed for hci2 (error: -2 parent: bluetooth) [ 68.293699] kobject_add_internal failed for hci0 (error: -2 parent: bluetooth) [ 68.314122] 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 [ 68.323419] kobject_add_internal failed for hci4 (error: -2 parent: bluetooth) [ 68.323639] Bluetooth: Can't register HCI device [ 68.344165] 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 [ 68.694230] kobject_add_internal failed for hci0 (error: -2 parent: bluetooth) [ 68.706502] 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 [ 68.827880] kobject_add_internal failed for hci4 (error: -2 parent: bluetooth) [ 68.859221] 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 [ 68.878371] kobject_add_internal failed for hci0 (error: -2 parent: bluetooth) [ 68.913028] 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 [ 69.031545] kobject_add_internal failed for hci0 (error: -2 parent: bluetooth) [ 69.044987] 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 [ 69.380709] kobject_add_internal failed for hci0 (error: -2 parent: bluetooth) [ 69.380826] 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 [ 69.743972] kobject_add_internal failed for hci0 (error: -2 parent: bluetooth) [ 69.754431] kobject_add_internal failed for hci1 (error: -2 parent: bluetooth) [ 69.774927] Bluetooth: Can't register HCI device [ 69.784444] 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 [ 69.796552] kobject_add_internal failed for hci0 (error: -2 parent: bluetooth) [ 69.832591] 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 executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 70.669849] kobject_add_internal failed for hci1 (error: -2 parent: bluetooth) [ 70.695757] 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 [ 71.350613] kobject_add_internal failed for hci0 (error: -2 parent: bluetooth) [ 71.370097] 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 [ 72.011538] kobject_add_internal failed for hci3 (error: -2 parent: bluetooth) [ 72.014306] kobject_add_internal failed for hci4 (error: -2 parent: bluetooth) [ 72.043290] Bluetooth: Can't register HCI device [ 72.043573] Bluetooth: Can't register HCI device [ 72.083062] ------------[ cut here ]------------ [ 72.088992] sysfs group 'power' not found for kobject 'rfkill883' [ 72.095337] WARNING: CPU: 0 PID: 9002 at fs/sysfs/group.c:254 sysfs_remove_group+0x15b/0x1b0 [ 72.097454] kobject: 'hci1' (00000000bd1e54d1): kobject_cleanup, parent (null) [ 72.103898] Kernel panic - not syncing: panic_on_warn set ... [ 72.103914] CPU: 0 PID: 9002 Comm: syz-executor237 Not tainted 5.0.0+ #8 [ 72.103923] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 72.103929] Call Trace: [ 72.103949] dump_stack+0x172/0x1f0 [ 72.103968] ? sysfs_remove_group+0xb0/0x1b0 [ 72.103984] panic+0x2cb/0x65c [ 72.104001] ? __warn_printk+0xf3/0xf3 [ 72.112631] kobject: 'bluetooth' (0000000007911d5c): kobject_add_internal: parent: 'virtual', set: '(null)' [ 72.118129] ? sysfs_remove_group+0x15b/0x1b0 [ 72.118144] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 72.118160] ? __warn.cold+0x5/0x45 [ 72.118181] ? __warn+0xe8/0x1d0 [ 72.118200] ? sysfs_remove_group+0x15b/0x1b0 [ 72.118215] __warn.cold+0x20/0x45 [ 72.118229] ? vprintk_emit+0x1ce/0x6d0 [ 72.118245] ? sysfs_remove_group+0x15b/0x1b0 [ 72.118257] report_bug+0x263/0x2b0 [ 72.118273] do_error_trap+0x11b/0x200 [ 72.118290] do_invalid_op+0x37/0x50 [ 72.125358] kobject: 'hci4' (000000009f9babb7): kobject_add_internal: parent: 'bluetooth', set: 'devices' [ 72.134538] ? sysfs_remove_group+0x15b/0x1b0 [ 72.134554] invalid_op+0x14/0x20 [ 72.134569] RIP: 0010:sysfs_remove_group+0x15b/0x1b0 [ 72.134584] Code: 48 89 d9 49 8b 55 00 48 b8 00 00 00 00 00 fc ff df 48 c1 e9 03 80 3c 01 00 75 41 48 8b 33 48 c7 c7 a0 42 78 87 e8 73 61 6f ff <0f> 0b eb 92 e8 9c dc d3 ff e9 d0 fe ff ff 48 89 df e8 8f dc d3 ff [ 72.134592] RSP: 0018:ffff88808f0ffc30 EFLAGS: 00010282 [ 72.134604] RAX: 0000000000000000 RBX: ffffffff87be7c40 RCX: 0000000000000000 [ 72.134613] RDX: 0000000000000000 RSI: ffffffff815a7616 RDI: ffffed1011e1ff78 [ 72.134622] RBP: ffff88808f0ffc58 R08: ffff888087606500 R09: ffffed1015d05021 [ 72.134631] R10: ffffed1015d05020 R11: ffff8880ae828107 R12: 0000000000000000 [ 72.134639] R13: ffff88808d9aed30 R14: ffffffff87be81e0 R15: ffffffff84ed5120 [ 72.134657] ? vhci_close_dev+0x50/0x50 [ 72.140234] kobject: 'hci1' (00000000bd1e54d1): calling ktype release [ 72.140878] ? vprintk_func+0x86/0x189 [ 72.145533] kobject: 'hci1': free name [ 72.148467] dpm_sysfs_remove+0x58/0x60 [ 72.148483] device_del+0x114/0xb60 [ 72.148501] ? lock_downgrade+0x810/0x810 [ 72.148515] ? __device_links_no_driver+0x270/0x270 [ 72.148539] ? vhci_close_dev+0x50/0x50 [ 72.148565] rfkill_unregister+0xd1/0x2c0 [ 72.148592] ? vhci_close_dev+0x50/0x50 [ 72.153210] kobject: 'hci4' (000000009f9babb7): kobject_uevent_env [ 72.162342] hci_unregister_dev+0x287/0x820 [ 72.162364] ? vhci_close_dev+0x50/0x50 [ 72.162379] vhci_release+0x76/0xf0 [ 72.162398] __fput+0x2df/0x8d0 [ 72.162421] ____fput+0x16/0x20 [ 72.162438] task_work_run+0x14a/0x1c0 [ 72.162462] exit_to_usermode_loop+0x273/0x2c0 [ 72.169112] kobject: 'hci4' (000000009f9babb7): fill_kobj_path: path = '/devices/virtual/bluetooth/hci4' [ 72.172484] do_syscall_64+0x52d/0x610 [ 72.172504] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 72.172516] RIP: 0033:0x400f80 [ 72.172530] Code: 01 f0 ff ff 0f 83 d0 0a 00 00 c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 83 3d 4d 17 2d 00 00 75 14 b8 03 00 00 00 0f 05 <48> 3d 01 f0 ff ff 0f 83 a4 0a 00 00 c3 48 83 ec 08 e8 5a 01 00 00 [ 72.172539] RSP: 002b:00007fffd3d514e8 EFLAGS: 00000246 ORIG_RAX: 0000000000000003 [ 72.172551] RAX: 0000000000000000 RBX: 0000000000000004 RCX: 0000000000400f80 [ 72.172562] RDX: 0000000000000002 RSI: 00000000200000c0 RDI: 0000000000000003 [ 72.177118] kobject: 'rfkill885' (000000001333a370): kobject_add_internal: parent: 'hci4', set: 'devices' [ 72.179572] RBP: 0000000000011905 R08: 00000000004002c8 R09: 00000000004002c8 [ 72.179581] R10: 0000000000000004 R11: 0000000000000246 R12: 0000000000401eb0 [ 72.179589] R13: 0000000000401f40 R14: 0000000000000000 R15: 0000000000000000 [ 72.184968] Kernel Offset: disabled [ 72.468904] Rebooting in 86400 seconds..