[....] Starting enhanced syslogd: rsyslogd[?25l[?1c7[ ok 8[?25h[?0c. [ 53.793746][ T26] audit: type=1800 audit(1559600395.025:25): pid=8309 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="cron" dev="sda1" ino=2414 res=0 [ 53.833563][ T26] audit: type=1800 audit(1559600395.025:26): pid=8309 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="mcstrans" dev="sda1" ino=2457 res=0 [ 53.871297][ T26] audit: type=1800 audit(1559600395.025:27): pid=8309 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="restorecond" dev="sda1" ino=2436 res=0 [....] 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 '10.128.0.21' (ECDSA) to the list of known hosts. executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program syzkaller login: [ 65.840919][ T8505] kobject_add_internal failed for hci3 (error: -2 parent: bluetooth) [ 65.867287][ T8505] 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 [ 65.974277][ T8531] kobject_add_internal failed for hci1 (error: -2 parent: bluetooth) [ 66.001580][ T8531] 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 executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 67.569159][ T8881] kobject_add_internal failed for hci2 (error: -2 parent: bluetooth) executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 67.613001][ T8881] Bluetooth: Can't register HCI device [ 67.625052][ T8888] kobject_add_internal failed for hci2 (error: -2 parent: bluetooth) [ 67.652747][ T8888] 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 executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 68.899033][ T9096] kobject_add_internal failed for hci0 (error: -2 parent: bluetooth) [ 68.922319][ T9096] 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 [ 69.462639][ T9184] kobject_add_internal failed for hci1 (error: -2 parent: bluetooth) [ 69.497291][ T9184] 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 [ 70.130510][ T9292] kobject_add_internal failed for hci0 (error: -2 parent: bluetooth) [ 70.162202][ T9292] 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 executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 71.272382][ T9483] kobject_add_internal failed for hci0 (error: -2 parent: bluetooth) [ 71.300208][ T9483] 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 [ 71.810048][ T9561] kobject_add_internal failed for hci4 (error: -2 parent: bluetooth) [ 71.847118][ T9561] 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 executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 74.595741][ T9960] kobject_add_internal failed for hci1 (error: -2 parent: bluetooth) [ 74.596348][ T9958] kobject_add_internal failed for hci2 (error: -2 parent: bluetooth) [ 74.629570][ T9961] kobject_add_internal failed for hci3 (error: -2 parent: bluetooth) [ 74.638166][ T9958] Bluetooth: Can't register HCI device executing program executing program executing program executing program [ 74.641572][ T9960] Bluetooth: Can't register HCI device executing program executing program executing program executing program executing program [ 74.672470][ T9961] Bluetooth: Can't register HCI device [ 74.696890][ T9970] ------------[ cut here ]------------ [ 74.705092][ T9967] kobject_add_internal failed for hci1 (error: -2 parent: bluetooth) executing program [ 74.717576][ T9970] refcount_t: increment on 0; use-after-free. [ 74.728272][ T9967] Bluetooth: Can't register HCI device [ 74.734586][ T9970] WARNING: CPU: 1 PID: 9970 at lib/refcount.c:156 refcount_inc_checked+0x61/0x70 [ 74.743700][ T9970] Kernel panic - not syncing: panic_on_warn set ... [ 74.750284][ T9970] CPU: 1 PID: 9970 Comm: syz-executor043 Not tainted 5.2.0-rc3 #10 [ 74.758164][ T9970] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 74.763919][ T9967] kobject: 'hci1' (00000000078babbb): kobject_cleanup, parent 0000000042e6e07f [ 74.768209][ T9970] Call Trace: [ 74.768232][ T9970] dump_stack+0x172/0x1f0 [ 74.768253][ T9970] ? refcount_inc_not_zero_checked+0x170/0x200 [ 74.790875][ T9970] panic+0x2cb/0x744 [ 74.794865][ T9970] ? __warn_printk+0xf3/0xf3 [ 74.798101][ T9967] kobject: 'hci1' (00000000078babbb): calling ktype release [ 74.799458][ T9970] ? refcount_inc_checked+0x61/0x70 [ 74.799474][ T9970] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 74.799491][ T9970] ? __warn.cold+0x5/0x4d [ 74.820840][ T9967] kobject: 'hci1': free name [ 74.822461][ T9970] ? __warn+0xe8/0x1d0 [ 74.822477][ T9970] ? refcount_inc_checked+0x61/0x70 [ 74.822494][ T9970] __warn.cold+0x20/0x4d [ 74.840515][ T9970] ? refcount_inc_checked+0x61/0x70 [ 74.845725][ T9970] report_bug+0x263/0x2b0 [ 74.850063][ T9970] do_error_trap+0x11b/0x200 [ 74.854654][ T9970] do_invalid_op+0x37/0x50 [ 74.859074][ T9970] ? refcount_inc_checked+0x61/0x70 [ 74.864277][ T9970] invalid_op+0x14/0x20 [ 74.868435][ T9970] RIP: 0010:refcount_inc_checked+0x61/0x70 [ 74.874240][ T9970] Code: 1d 7d 96 48 06 31 ff 89 de e8 1b 7e 3c fe 84 db 75 dd e8 d2 7c 3c fe 48 c7 c7 a0 9a a4 87 c6 05 5d 96 48 06 01 e8 1d c0 0e fe <0f> 0b eb c1 90 90 90 90 90 90 90 90 90 90 90 55 48 89 e5 41 57 41 [ 74.893839][ T9970] RSP: 0018:ffff88809fde78e8 EFLAGS: 00010282 [ 74.899904][ T9970] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000 [ 74.907871][ T9970] RDX: 0000000000000000 RSI: ffffffff815ac936 RDI: ffffed1013fbcf0f [ 74.915840][ T9970] RBP: ffff88809fde78f8 R08: ffff88809419c3c0 R09: ffffed1015d26011 [ 74.923810][ T9970] R10: ffffed1015d26010 R11: ffff8880ae930087 R12: ffff88821ae3d538 [ 74.931778][ T9970] R13: ffff88808dcc1420 R14: ffff88808dcc1418 R15: ffff88821ae3d4b8 [ 74.940210][ T9970] ? vprintk_func+0x86/0x189 [ 74.951954][ T9970] ? refcount_inc_checked+0x61/0x70 [ 74.957157][ T9970] kobject_get+0x66/0xc0 [ 74.961404][ T9970] kobject_add_internal+0x14f/0x380 [ 74.966605][ T9970] ? kfree_const+0x5e/0x70 [ 74.971033][ T9970] kobject_add+0x150/0x1c0 [ 74.975450][ T9970] ? kset_create_and_add+0x1a0/0x1a0 [ 74.980751][ T9970] ? get_device_parent.isra.0+0x34c/0x560 [ 74.986471][ T9970] ? rcu_read_lock_sched_held+0x110/0x130 [ 74.992195][ T9970] ? kmem_cache_alloc_trace+0x351/0x750 [ 74.997757][ T9970] get_device_parent.isra.0+0x413/0x560 [ 75.003305][ T9970] device_add+0x2df/0x17a0 [ 75.007729][ T9970] ? get_device_parent.isra.0+0x560/0x560 [ 75.013448][ T9970] ? start_creating+0x163/0x1e0 [ 75.018307][ T9970] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 75.024552][ T9970] hci_register_dev+0x2e8/0x860 [ 75.029413][ T9970] __vhci_create_device+0x2d0/0x5a0 [ 75.034619][ T9970] vhci_write+0x2d0/0x470 [ 75.038957][ T9970] new_sync_write+0x4d3/0x770 [ 75.043643][ T9970] ? new_sync_read+0x800/0x800 [ 75.048415][ T9970] ? common_file_perm+0x238/0x720 [ 75.053447][ T9970] ? apparmor_file_permission+0x25/0x30 [ 75.059001][ T9970] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 75.065245][ T9970] ? security_file_permission+0x8f/0x380 [ 75.070874][ T9970] ? putname+0xef/0x130 [ 75.075034][ T9970] __vfs_write+0xe1/0x110 [ 75.079365][ T9970] vfs_write+0x20c/0x580 [ 75.083613][ T9970] ksys_write+0x14f/0x290 [ 75.088030][ T9970] ? __ia32_sys_read+0xb0/0xb0 [ 75.092797][ T9970] ? do_fast_syscall_32+0xd1/0xd7d [ 75.097911][ T9970] ? entry_SYSENTER_compat+0x70/0x7f [ 75.103196][ T9970] ? do_fast_syscall_32+0xd1/0xd7d [ 75.108311][ T9970] __ia32_sys_write+0x71/0xb0 [ 75.113001][ T9970] do_fast_syscall_32+0x27b/0xd7d [ 75.118033][ T9970] entry_SYSENTER_compat+0x70/0x7f [ 75.123141][ T9970] RIP: 0023:0xf7f1c849 [ 75.127210][ T9970] Code: 85 d2 74 02 89 0a 5b 5d c3 8b 04 24 c3 8b 14 24 c3 8b 3c 24 c3 90 90 90 90 90 90 90 90 90 90 90 90 51 52 55 89 e5 0f 34 cd 80 <5d> 5a 59 c3 90 90 90 90 eb 0d 90 90 90 90 90 90 90 90 90 90 90 90 [ 75.146812][ T9970] RSP: 002b:00000000ffca275c EFLAGS: 00000246 ORIG_RAX: 0000000000000004 [ 75.155223][ T9970] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00000000200000c0 [ 75.163193][ T9970] RDX: 0000000000000002 RSI: 0000000000000001 RDI: 00000000ffca2874 [ 75.171164][ T9970] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 [ 75.179602][ T9970] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 [ 75.187659][ T9970] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 75.196998][ T9970] Kernel Offset: disabled [ 75.201379][ T9970] Rebooting in 86400 seconds..