[ 31.522863] audit: type=1800 audit(1552173043.086:27): pid=7299 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="restorecond" dev="sda1" ino=2436 res=0 [ 31.548219] audit: type=1800 audit(1552173043.096:28): pid=7299 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="ssh" dev="sda1" ino=2417 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. [ 32.274237] audit: type=1800 audit(1552173043.916:29): pid=7299 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="rc.local" dev="sda1" ino=2432 res=0 [ 32.293873] audit: type=1800 audit(1552173043.916:30): pid=7299 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="rmnologin" dev="sda1" ino=2423 res=0 Debian GNU/Linux 7 syzkaller ttyS0 Warning: Permanently added '10.128.0.140' (ECDSA) to the list of known hosts. syzkaller login: [ 41.677878] IPVS: ftp: loaded support on port[0] = 21 [ 41.680187] IPVS: ftp: loaded support on port[0] = 21 [ 41.688541] IPVS: ftp: loaded support on port[0] = 21 [ 41.692123] IPVS: ftp: loaded support on port[0] = 21 [ 41.695924] IPVS: ftp: loaded support on port[0] = 21 [ 41.703867] 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 executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 43.224567] WARNING: CPU: 1 PID: 7851 at fs/kernfs/dir.c:494 kernfs_get.part.0+0x73/0x90 [ 43.233021] Kernel panic - not syncing: panic_on_warn set ... [ 43.233196] kobject: 'bluetooth' (00000000313dbcbf): kobject_add_internal: parent: 'virtual', set: '(null)' [ 43.238900] CPU: 1 PID: 7851 Comm: syz-executor198 Not tainted 5.0.0+ #14 [ 43.238908] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 43.238913] Call Trace: [ 43.238932] dump_stack+0x172/0x1f0 [ 43.238951] ? kernfs_unlink_sibling+0x160/0x170 [ 43.238967] panic+0x2cb/0x65c [ 43.275908] kobject: 'hci1' (00000000643a3a06): kobject_add_internal: parent: 'bluetooth', set: 'devices' [ 43.276236] ? __warn_printk+0xf3/0xf3 [ 43.279657] kobject: 'hci1' (00000000643a3a06): kobject_uevent_env [ 43.289102] ? kernfs_get.part.0+0x73/0x90 [ 43.289118] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 43.289134] ? __warn.cold+0x5/0x45 [ 43.289146] ? __warn+0xe8/0x1d0 [ 43.289161] ? kernfs_get.part.0+0x73/0x90 [ 43.289174] __warn.cold+0x20/0x45 [ 43.289188] ? idr_alloc+0x150/0x150 [ 43.295802] kobject: 'hci0' (00000000a3b77314): kobject_add_internal: parent: 'bluetooth', set: 'devices' [ 43.299358] ? kernfs_get.part.0+0x73/0x90 [ 43.299375] report_bug+0x263/0x2b0 [ 43.299395] do_error_trap+0x11b/0x200 [ 43.299412] do_invalid_op+0x37/0x50 [ 43.299426] ? kernfs_get.part.0+0x73/0x90 [ 43.316046] kobject: 'hci0' (00000000a3b77314): kobject_uevent_env [ 43.316126] invalid_op+0x14/0x20 [ 43.327840] kobject: 'hci1' (00000000643a3a06): fill_kobj_path: path = '/devices/virtual/bluetooth/hci1' [ 43.337251] RIP: 0010:kernfs_get.part.0+0x73/0x90 [ 43.337265] Code: e6 e8 21 75 9b ff 45 85 e4 74 1a e8 97 73 9b ff be 04 00 00 00 48 89 df e8 da 46 d3 ff f0 ff 03 5b 41 5c 5d c3 e8 7d 73 9b ff <0f> 0b eb dd 48 89 df e8 d1 6c d3 ff eb c1 0f 1f 44 00 00 66 2e 0f [ 43.337273] RSP: 0018:ffff8880a3c7f808 EFLAGS: 00010293 [ 43.337286] RAX: ffff88808c482140 RBX: ffff888096d2be00 RCX: ffffffff81d4e25f [ 43.337294] RDX: 0000000000000000 RSI: ffffffff81d4e283 RDI: 0000000000000005 [ 43.337303] RBP: ffff8880a3c7f818 R08: ffff88808c482140 R09: ffffed1012da57c1 [ 43.337312] R10: ffffed1012da57c0 R11: ffff888096d2be03 R12: 0000000000000000 [ 43.337319] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000001 [ 43.337338] ? kernfs_get.part.0+0x4f/0x90 [ 43.337350] ? kernfs_get.part.0+0x73/0x90 [ 43.337365] ? kernfs_get.part.0+0x73/0x90 [ 43.343481] kobject: 'hci0' (00000000a3b77314): fill_kobj_path: path = '/devices/virtual/bluetooth/hci0' [ 43.345201] kernfs_new_node+0xb8/0x130 [ 43.345229] kernfs_create_dir_ns+0x52/0x160 [ 43.345249] sysfs_create_dir_ns+0x131/0x2a0 [ 43.345266] ? sysfs_create_mount_point+0xa0/0xa0 [ 43.345287] ? class_dir_child_ns_type+0xd/0x60 [ 43.345306] kobject_add_internal.cold+0xe5/0x5d4 [ 43.352942] kobject: 'rfkill235' (00000000dea3d0e6): kobject_add_internal: parent: 'hci0', set: 'devices' [ 43.357096] kobject_add+0x150/0x1c0 [ 43.357113] ? kset_create_and_add+0x1a0/0x1a0 [ 43.357134] ? kasan_check_read+0x11/0x20 [ 43.357152] ? mutex_unlock+0xd/0x10 [ 43.357163] ? device_add+0x30f/0x18a0 [ 43.357177] device_add+0x3d5/0x18a0 [ 43.357190] ? device_initialize+0x440/0x440 [ 43.384492] kobject: 'rfkill235' (00000000dea3d0e6): kobject_uevent_env [ 43.400493] ? get_device_parent.isra.0+0x570/0x570 [ 43.400519] hci_register_dev+0x2e8/0x860 [ 43.400542] __vhci_create_device+0x2d0/0x5a0 [ 43.400558] vhci_write+0x2d0/0x470 [ 43.400575] new_sync_write+0x4c7/0x760 [ 43.400589] ? default_llseek+0x2e0/0x2e0 [ 43.400607] ? common_file_perm+0x238/0x720 [ 43.448224] kobject: 'rfkill235' (00000000dea3d0e6): fill_kobj_path: path = '/devices/virtual/bluetooth/hci0/rfkill235' [ 43.451136] ? __fget+0x381/0x550 [ 43.451156] ? apparmor_file_permission+0x25/0x30 [ 43.451172] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 43.451188] ? security_file_permission+0x94/0x380 [ 43.451199] ? putname+0xef/0x130 [ 43.451222] __vfs_write+0xe4/0x110 [ 43.469483] kobject: 'rfkill236' (000000003ccbd67f): kobject_add_internal: parent: 'hci1', set: 'devices' [ 43.473404] vfs_write+0x20c/0x580 [ 43.473424] ksys_write+0xea/0x1f0 [ 43.473441] ? __ia32_sys_read+0xb0/0xb0 [ 43.473457] ? do_syscall_64+0x26/0x610 [ 43.473471] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 43.473482] ? do_syscall_64+0x26/0x610 [ 43.473498] __x64_sys_write+0x73/0xb0 [ 43.478529] kobject: 'rfkill236' (000000003ccbd67f): kobject_uevent_env [ 43.482717] do_syscall_64+0x103/0x610 [ 43.482740] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 43.482752] RIP: 0033:0x4476a9 [ 43.482766] Code: e8 dc e6 ff ff 48 83 c4 18 c3 0f 1f 80 00 00 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 0f 83 7b 05 fc ff c3 66 2e 0f 1f 84 00 00 00 00 [ 43.482773] RSP: 002b:00007f229f6cece8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 43.482786] RAX: ffffffffffffffda RBX: 00000000006ddc28 RCX: 00000000004476a9 [ 43.482794] RDX: 0000000000000002 RSI: 00000000200000c0 RDI: 0000000000000003 [ 43.482801] RBP: 00000000006ddc20 R08: 0000000000000000 R09: 0000000000000000 [ 43.482810] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000006ddc2c [ 43.493463] kobject: 'rfkill236' (000000003ccbd67f): fill_kobj_path: path = '/devices/virtual/bluetooth/hci1/rfkill236' [ 43.501973] R13: 00007fff0a7c834f R14: 00007f229f6cf9c0 R15: 20c49ba5e353f7cf [ 43.506505] Kernel Offset: disabled [ 43.737775] Rebooting in 86400 seconds..