[ 34.541097] audit: type=1800 audit(1551280436.016:27): pid=7471 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="restorecond" dev="sda1" ino=2436 res=0 [ 34.570598] audit: type=1800 audit(1551280436.026:28): pid=7471 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. [ 35.283187] audit: type=1800 audit(1551280436.806:29): pid=7471 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 [ 35.309128] audit: type=1800 audit(1551280436.806:30): pid=7471 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 '10.128.10.17' (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 syzkaller login: [ 45.428330] kobject_add_internal failed for hci1 (error: -2 parent: bluetooth) [ 45.450950] kobject_add_internal failed for hci0 (error: -2 parent: bluetooth) [ 45.461952] Bluetooth: Can't register HCI device executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 45.478046] 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 [ 45.610970] WARNING: CPU: 1 PID: 7694 at fs/kernfs/dir.c:494 kernfs_get.part.0+0x73/0x90 [ 45.611101] kobject: 'rfkill63' (000000000e87f2ed): kobject_uevent_env [ 45.619232] Kernel panic - not syncing: panic_on_warn set ... [ 45.619248] CPU: 1 PID: 7694 Comm: syz-executor023 Not tainted 5.0.0-rc8+ #88 [ 45.619257] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 45.619262] Call Trace: [ 45.619284] dump_stack+0x172/0x1f0 [ 45.619301] ? kernfs_unlink_sibling+0x110/0x170 [ 45.619319] panic+0x2cb/0x65c [ 45.619334] ? __warn_printk+0xf3/0xf3 [ 45.619352] ? kernfs_get.part.0+0x73/0x90 [ 45.619367] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 45.619380] ? __warn.cold+0x5/0x45 [ 45.619394] ? __warn+0xe8/0x1d0 [ 45.619408] ? kernfs_get.part.0+0x73/0x90 [ 45.619428] __warn.cold+0x20/0x45 [ 45.619442] ? kernfs_get.part.0+0x73/0x90 [ 45.619458] report_bug+0x263/0x2b0 [ 45.619478] do_error_trap+0x11b/0x200 [ 45.619494] do_invalid_op+0x37/0x50 [ 45.619505] ? kernfs_get.part.0+0x73/0x90 [ 45.631707] kobject: 'rfkill63' (000000000e87f2ed): fill_kobj_path: path = '/devices/virtual/bluetooth/hci2/rfkill63' [ 45.632109] invalid_op+0x14/0x20 [ 45.632125] RIP: 0010:kernfs_get.part.0+0x73/0x90 [ 45.632139] Code: e6 e8 f1 ce 9d ff 45 85 e4 74 1a e8 67 cd 9d ff be 04 00 00 00 48 89 df e8 7a a7 d4 ff f0 ff 03 5b 41 5c 5d c3 e8 4d cd 9d ff <0f> 0b eb dd 48 89 df e8 a1 cd d4 ff eb c1 0f 1f 44 00 00 66 2e 0f [ 45.632150] RSP: 0018:ffff8880a8a2f840 EFLAGS: 00010293 [ 45.640143] kobject: 'rfkill63' (000000000e87f2ed): kobject_uevent_env [ 45.648804] RAX: ffff8880941f6300 RBX: ffff888087b86d20 RCX: ffffffff81d211af [ 45.648813] RDX: 0000000000000000 RSI: ffffffff81d211d3 RDI: 0000000000000005 [ 45.648822] RBP: ffff8880a8a2f850 R08: ffff8880941f6300 R09: ffffed1010f70da5 [ 45.648831] R10: ffffed1010f70da4 R11: ffff888087b86d23 R12: 0000000000000000 [ 45.648840] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000001 [ 45.648873] ? kernfs_get.part.0+0x4f/0x90 [ 45.648886] ? kernfs_get.part.0+0x73/0x90 [ 45.648905] kernfs_new_node+0xb8/0x130 [ 45.648921] kernfs_create_dir_ns+0x52/0x160 [ 45.651623] kobject: 'rfkill63' (000000000e87f2ed): fill_kobj_path: path = '/devices/virtual/bluetooth/hci2/rfkill63' [ 45.655113] sysfs_create_dir_ns+0x131/0x2a0 [ 45.655130] ? sysfs_create_mount_point+0xa0/0xa0 [ 45.655155] ? class_dir_child_ns_type+0xd/0x60 [ 45.655173] kobject_add_internal.cold+0xe5/0x5d4 [ 45.655187] kobject_add+0x150/0x1c0 [ 45.655199] ? kset_create_and_add+0x1a0/0x1a0 [ 45.655218] ? kasan_check_read+0x11/0x20 [ 45.655237] ? mutex_unlock+0xd/0x10 [ 45.660179] kobject: 'rfkill63' (000000000e87f2ed): kobject_cleanup, parent (null) [ 45.663148] ? device_add+0x30f/0x1870 [ 45.663166] device_add+0x3d5/0x1870 [ 45.663183] ? device_initialize+0x440/0x440 [ 45.663199] ? get_device_parent.isra.0+0x570/0x570 [ 45.684281] kobject: 'rfkill63' (000000000e87f2ed): calling ktype release [ 45.688034] ? start_creating+0x163/0x1e0 [ 45.688053] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 45.688072] hci_register_dev+0x304/0x880 [ 45.688094] __vhci_create_device+0x2d0/0x5a0 [ 45.688111] vhci_write+0x2d0/0x470 [ 45.700503] kobject: 'rfkill63': free name [ 45.703380] __vfs_write+0x613/0x8e0 [ 45.703399] ? kernel_read+0x120/0x120 [ 45.703422] ? common_file_perm+0x1d6/0x6f0 [ 45.703441] ? apparmor_file_permission+0x25/0x30 [ 45.723990] kobject: 'hci2' (00000000493a4c72): kobject_uevent_env [ 45.725807] ? rw_verify_area+0x118/0x360 [ 45.725826] vfs_write+0x20c/0x580 [ 45.725846] ksys_write+0xea/0x1f0 [ 45.725871] ? __ia32_sys_read+0xb0/0xb0 [ 45.725888] ? do_syscall_64+0x26/0x610 [ 45.725901] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 45.725912] ? do_syscall_64+0x26/0x610 [ 45.725929] __x64_sys_write+0x73/0xb0 [ 45.725946] do_syscall_64+0x103/0x610 [ 45.730996] kobject: 'hci2' (00000000493a4c72): fill_kobj_path: path = '/devices/virtual/bluetooth/hci2' [ 45.749699] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 45.749711] RIP: 0033:0x440e49 [ 45.749727] Code: e8 ac e8 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 0b 0a fc ff c3 66 2e 0f 1f 84 00 00 00 00 [ 45.749734] RSP: 002b:00007ffe4dab4dc8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 45.749747] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000440e49 [ 45.749754] RDX: 0000000000000002 RSI: 00000000200000c0 RDI: 0000000000000003 [ 45.749761] RBP: 000000000000b1f1 R08: 00000000004002c8 R09: 00000000004002c8 [ 45.749769] R10: 000000000145e880 R11: 0000000000000246 R12: 0000000000401ce0 [ 45.749776] R13: 0000000000401d70 R14: 0000000000000000 R15: 0000000000000000 [ 45.756127] Kernel Offset: disabled [ 46.063516] Rebooting in 86400 seconds..