[ 35.262885][ T26] audit: type=1800 audit(1555977760.614:28): pid=7451 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. [ 36.172445][ T26] audit: type=1800 audit(1555977761.634:29): pid=7451 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 [ 36.201290][ T26] audit: type=1800 audit(1555977761.634:30): pid=7451 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="rmnologin" dev="sda1" ino=2423 res=0 [....] startpar: service(s) returned failure: ssh ...[?25l[?1c7[FAIL8[?25h[?0c failed! Debian GNU/Linux 7 syzkaller ttyS0 Warning: Permanently added '10.128.0.52' (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 executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program 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: [ 46.719249][ T7850] kobject_add_internal failed for hci6 (error: -2 parent: bluetooth) [ 46.749864][ T7849] kobject_add_internal failed for hci5 (error: -2 parent: bluetooth) executing program executing program executing program [ 46.783130][ T7856] kobject_add_internal failed for hci1 (error: -2 parent: bluetooth) [ 46.789896][ T7849] Bluetooth: Can't register HCI device [ 46.800309][ T7850] 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 [ 46.830349][ T7856] 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 [ 47.060640][ T7895] WARNING: CPU: 1 PID: 7895 at fs/kernfs/dir.c:494 kernfs_get.part.0+0x73/0x90 [ 47.062969][ T7894] kobject: 'bluetooth' (000000005755c693): kobject_add_internal: parent: 'virtual', set: '(null)' [ 47.072875][ T7895] Kernel panic - not syncing: panic_on_warn set ... [ 47.072891][ T7895] CPU: 1 PID: 7895 Comm: syz-executor737 Not tainted 5.1.0-rc6 #80 [ 47.072899][ T7895] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 47.072904][ T7895] Call Trace: [ 47.072930][ T7895] dump_stack+0x172/0x1f0 [ 47.072949][ T7895] ? kernfs_unlink_sibling+0x170/0x170 [ 47.072964][ T7895] panic+0x2cb/0x65c [ 47.072979][ T7895] ? __warn_printk+0xf3/0xf3 [ 47.072998][ T7895] ? kernfs_get.part.0+0x73/0x90 [ 47.073012][ T7895] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 47.073025][ T7895] ? __warn.cold+0x5/0x45 [ 47.073038][ T7895] ? __warn+0xe8/0x1d0 [ 47.073053][ T7895] ? kernfs_get.part.0+0x73/0x90 [ 47.073072][ T7895] __warn.cold+0x20/0x45 [ 47.073085][ T7895] ? kernfs_get.part.0+0x73/0x90 [ 47.073102][ T7895] report_bug+0x263/0x2b0 [ 47.073118][ T7895] do_error_trap+0x11b/0x200 [ 47.073131][ T7895] do_invalid_op+0x37/0x50 [ 47.073143][ T7895] ? kernfs_get.part.0+0x73/0x90 [ 47.073157][ T7895] invalid_op+0x14/0x20 [ 47.136281][ T7893] kobject: 'hci5' (00000000c3bf2807): kobject_add_internal: parent: 'bluetooth', set: 'devices' [ 47.139036][ T7895] RIP: 0010:kernfs_get.part.0+0x73/0x90 [ 47.139051][ T7895] Code: e6 e8 21 b7 9a ff 45 85 e4 74 1a e8 97 b5 9a ff be 04 00 00 00 48 89 df e8 6a a5 d2 ff f0 ff 03 5b 41 5c 5d c3 e8 7d b5 9a ff <0f> 0b eb dd 48 89 df e8 61 cb d2 ff eb c1 0f 1f 44 00 00 66 2e 0f [ 47.139061][ T7895] RSP: 0018:ffff8880a8fd7800 EFLAGS: 00010293 [ 47.144226][ T7896] kobject: 'hci2' (000000004dd3e394): kobject_add_internal: parent: 'bluetooth', set: 'devices' [ 47.149150][ T7895] RAX: ffff88808c98a380 RBX: ffff88808751cee0 RCX: ffffffff81d5d74f [ 47.149157][ T7895] RDX: 0000000000000000 RSI: ffffffff81d5d773 RDI: 0000000000000005 [ 47.149164][ T7895] RBP: ffff8880a8fd7810 R08: ffff88808c98a380 R09: ffffed1010ea39dd [ 47.149172][ T7895] R10: ffffed1010ea39dc R11: ffff88808751cee3 R12: 0000000000000000 [ 47.149179][ T7895] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000001 [ 47.149203][ T7895] ? kernfs_get.part.0+0x4f/0x90 [ 47.149220][ T7895] ? kernfs_get.part.0+0x73/0x90 [ 47.154935][ T7893] kobject: 'hci5' (00000000c3bf2807): kobject_uevent_env [ 47.161598][ T7895] kernfs_new_node+0xb8/0x130 [ 47.161619][ T7895] kernfs_create_dir_ns+0x52/0x160 [ 47.161635][ T7895] sysfs_create_dir_ns+0x131/0x2a0 [ 47.161651][ T7895] ? sysfs_create_mount_point+0xa0/0xa0 [ 47.167452][ T7896] kobject: 'hci2' (000000004dd3e394): kobject_uevent_env [ 47.171082][ T7895] ? class_dir_child_ns_type+0xd/0x60 [ 47.171106][ T7895] kobject_add_internal.cold+0xe5/0x5d4 [ 47.179821][ T7894] kobject: 'hci4' (0000000004cee788): kobject_add_internal: parent: 'bluetooth', set: 'devices' [ 47.180252][ T7895] kobject_add+0x150/0x1c0 [ 47.196983][ T7894] kobject: 'hci4' (0000000004cee788): kobject_uevent_env [ 47.199831][ T7895] ? kset_create_and_add+0x1a0/0x1a0 [ 47.199853][ T7895] ? kasan_check_read+0x11/0x20 [ 47.199872][ T7895] ? mutex_unlock+0xd/0x10 [ 47.213118][ T7896] kobject: 'hci2' (000000004dd3e394): fill_kobj_path: path = '/devices/virtual/bluetooth/hci2' [ 47.217312][ T7895] ? device_add+0x30f/0x18a0 [ 47.217334][ T7895] device_add+0x3d5/0x18a0 [ 47.217348][ T7895] ? device_initialize+0x440/0x440 [ 47.217366][ T7895] ? get_device_parent.isra.0+0x570/0x570 [ 47.217386][ T7895] hci_register_dev+0x2e8/0x860 [ 47.217407][ T7895] __vhci_create_device+0x2d0/0x5a0 [ 47.225770][ T7893] kobject: 'hci5' (00000000c3bf2807): fill_kobj_path: path = '/devices/virtual/bluetooth/hci5' [ 47.233950][ T7895] vhci_write+0x2d0/0x470 [ 47.233970][ T7895] new_sync_write+0x4c7/0x760 [ 47.233988][ T7895] ? default_llseek+0x2e0/0x2e0 [ 47.247323][ T7896] kobject: 'rfkill236' (00000000e34eb201): kobject_add_internal: parent: 'hci2', set: 'devices' [ 47.264277][ T7895] ? common_file_perm+0x238/0x720 [ 47.264297][ T7895] ? apparmor_file_permission+0x25/0x30 [ 47.264312][ T7895] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 47.264328][ T7895] ? security_file_permission+0x94/0x380 [ 47.264340][ T7895] ? find_held_lock+0x35/0x130 [ 47.264355][ T7895] __vfs_write+0xe4/0x110 [ 47.264374][ T7895] vfs_write+0x20c/0x580 [ 47.264391][ T7895] ksys_write+0x14f/0x2d0 [ 47.280585][ T7894] kobject: 'hci4' (0000000004cee788): fill_kobj_path: path = '/devices/virtual/bluetooth/hci4' [ 47.281746][ T7895] ? __ia32_sys_read+0xb0/0xb0 [ 47.281764][ T7895] ? do_syscall_64+0x26/0x610 [ 47.281785][ T7895] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 47.326801][ T7896] kobject: 'rfkill236' (00000000e34eb201): kobject_uevent_env [ 47.328964][ T7895] ? do_syscall_64+0x26/0x610 [ 47.328986][ T7895] __x64_sys_write+0x73/0xb0 [ 47.329005][ T7895] do_syscall_64+0x103/0x610 [ 47.337720][ T7896] kobject: 'rfkill236' (00000000e34eb201): fill_kobj_path: path = '/devices/virtual/bluetooth/hci2/rfkill236' [ 47.339903][ T7895] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 47.339915][ T7895] RIP: 0033:0x441719 [ 47.339931][ T7895] Code: e8 7c e7 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 bb 07 fc ff c3 66 2e 0f 1f 84 00 00 00 00 [ 47.374861][ T7893] kobject: 'rfkill237' (000000003f46cfa2): kobject_add_internal: parent: 'hci5', set: 'devices' [ 47.387947][ T7895] RSP: 002b:00007ffd763493d8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 47.387959][ T7895] RAX: ffffffffffffffda RBX: 000000000000b779 RCX: 0000000000441719 [ 47.387966][ T7895] RDX: 0000000000000002 RSI: 00000000200000c0 RDI: 0000000000000003 [ 47.387973][ T7895] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 [ 47.387980][ T7895] R10: 0000000000000004 R11: 0000000000000246 R12: 0000000000000025 [ 47.387987][ T7895] R13: 00000000004023f0 R14: 0000000000000000 R15: 0000000000000000 [ 47.396208][ T7895] Kernel Offset: disabled [ 47.792827][ T7895] Rebooting in 86400 seconds..