[ 35.906462] audit: type=1800 audit(1550140514.418:27): pid=7429 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="restorecond" dev="sda1" ino=2436 res=0 [ 35.927362] audit: type=1800 audit(1550140514.418:28): pid=7429 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. [ 36.785512] audit: type=1800 audit(1550140515.348:29): pid=7429 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 [ 36.805050] audit: type=1800 audit(1550140515.358:30): pid=7429 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 '10.128.0.133' (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 syzkaller login: [ 47.600326] WARNING: CPU: 0 PID: 7698 at fs/kernfs/dir.c:494 kernfs_get.part.0+0x73/0x90 [ 47.601443] kobject: 'hci1' (000000009e04ca90): kobject_add_internal: parent: 'bluetooth', set: 'devices' [ 47.608721] Kernel panic - not syncing: panic_on_warn set ... [ 47.608736] CPU: 0 PID: 7698 Comm: syz-executor286 Not tainted 5.0.0-rc6+ #70 [ 47.608744] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 47.608749] Call Trace: [ 47.608769] dump_stack+0x172/0x1f0 [ 47.608786] ? kernfs_get.part.0+0x20/0x90 [ 47.608805] panic+0x2cb/0x65c [ 47.608817] ? __warn_printk+0xf3/0xf3 [ 47.608833] ? kernfs_get.part.0+0x73/0x90 [ 47.619917] kobject: 'rfkill109' (00000000d61ecdf9): kobject_uevent_env [ 47.624404] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 47.624418] ? __warn.cold+0x5/0x45 [ 47.624433] ? __warn+0xe8/0x1d0 [ 47.651791] kobject: 'rfkill109' (00000000d61ecdf9): fill_kobj_path: path = '/devices/virtual/bluetooth/hci0/rfkill109' [ 47.654620] ? kernfs_get.part.0+0x73/0x90 [ 47.654634] __warn.cold+0x20/0x45 [ 47.654647] ? kernfs_get.part.0+0x73/0x90 [ 47.666530] kobject: 'hci1' (000000009e04ca90): kobject_uevent_env [ 47.669507] report_bug+0x263/0x2b0 [ 47.669532] do_error_trap+0x11b/0x200 [ 47.669550] do_invalid_op+0x37/0x50 [ 47.669564] ? kernfs_get.part.0+0x73/0x90 [ 47.679053] kobject: 'rfkill109' (00000000d61ecdf9): kobject_cleanup, parent (null) [ 47.682052] invalid_op+0x14/0x20 [ 47.682066] RIP: 0010:kernfs_get.part.0+0x73/0x90 [ 47.682079] Code: e6 e8 71 d0 9d ff 45 85 e4 74 1a e8 e7 ce 9d ff be 04 00 00 00 48 89 df e8 da a6 d4 ff f0 ff 03 5b 41 5c 5d c3 e8 cd ce 9d ff <0f> 0b eb dd 48 89 df e8 01 cd d4 ff eb c1 0f 1f 44 00 00 66 2e 0f [ 47.696658] kobject: 'hci1' (000000009e04ca90): fill_kobj_path: path = '/devices/virtual/bluetooth/hci1' [ 47.697194] RSP: 0018:ffff888098d97840 EFLAGS: 00010293 [ 47.697206] RAX: ffff888084890300 RBX: ffff8880a790e700 RCX: ffffffff81d2122f [ 47.697214] RDX: 0000000000000000 RSI: ffffffff81d21253 RDI: 0000000000000005 [ 47.697222] RBP: ffff888098d97850 R08: ffff888084890300 R09: ffffed1014f21ce1 [ 47.697232] R10: ffffed1014f21ce0 R11: ffff8880a790e703 R12: 0000000000000000 [ 47.707738] kobject: 'rfkill110' (0000000053d1812e): kobject_add_internal: parent: 'hci1', set: 'devices' [ 47.711276] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000001 [ 47.711301] ? kernfs_get.part.0+0x4f/0x90 [ 47.711313] ? kernfs_get.part.0+0x73/0x90 [ 47.711330] kernfs_new_node+0xb8/0x130 [ 47.721951] kobject: 'rfkill110' (0000000053d1812e): kobject_uevent_env [ 47.722564] kernfs_create_dir_ns+0x52/0x160 [ 47.736089] kobject: 'rfkill109' (00000000d61ecdf9): calling ktype release [ 47.738868] sysfs_create_dir_ns+0x131/0x2a0 [ 47.738884] ? sysfs_create_mount_point+0xa0/0xa0 [ 47.738908] ? class_dir_child_ns_type+0xd/0x60 [ 47.738925] kobject_add_internal.cold+0xe5/0x5d4 [ 47.743817] kobject: 'rfkill110' (0000000053d1812e): fill_kobj_path: path = '/devices/virtual/bluetooth/hci1/rfkill110' [ 47.762643] kobject_add+0x150/0x1c0 [ 47.762657] ? kset_create_and_add+0x1a0/0x1a0 [ 47.762676] ? kasan_check_read+0x11/0x20 [ 47.762692] ? mutex_unlock+0xd/0x10 [ 47.762705] ? device_add+0x30f/0x1870 [ 47.777922] kobject: 'rfkill109': free name [ 47.784918] device_add+0x3d5/0x1870 [ 47.784933] ? device_initialize+0x440/0x440 [ 47.784948] ? get_device_parent.isra.0+0x570/0x570 [ 47.815845] kobject: 'hci0' (00000000c510fdf6): kobject_uevent_env [ 47.816430] hci_register_dev+0x304/0x880 [ 47.837852] kobject: 'hci0' (00000000c510fdf6): fill_kobj_path: path = '/devices/virtual/bluetooth/hci0' [ 47.842835] __vhci_create_device+0x2d0/0x5a0 [ 47.842854] vhci_write+0x2d0/0x470 [ 47.852304] kobject: 'rfkill110' (0000000053d1812e): kobject_uevent_env [ 47.855157] __vfs_write+0x613/0x8e0 [ 47.855177] ? kernel_read+0x120/0x120 [ 47.870766] kobject: 'hci0' (00000000c510fdf6): kobject_cleanup, parent (null) [ 47.873885] ? common_file_perm+0x1d6/0x6f0 [ 47.873904] ? apparmor_file_permission+0x25/0x30 [ 47.873927] ? rw_verify_area+0x118/0x360 [ 47.889170] kobject: 'rfkill110' (0000000053d1812e): fill_kobj_path: path = '/devices/virtual/bluetooth/hci1/rfkill110' [ 47.893098] vfs_write+0x20c/0x580 [ 47.893115] ksys_write+0xea/0x1f0 [ 47.893130] ? __ia32_sys_read+0xb0/0xb0 [ 47.909948] kobject: 'rfkill110' (0000000053d1812e): kobject_cleanup, parent (null) [ 47.912906] ? do_syscall_64+0x26/0x610 [ 47.912920] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 47.912933] ? do_syscall_64+0x26/0x610 [ 47.927618] kobject: 'hci0' (00000000c510fdf6): calling ktype release [ 47.928640] __x64_sys_write+0x73/0xb0 [ 47.937503] kobject: 'rfkill110' (0000000053d1812e): calling ktype release [ 47.942376] do_syscall_64+0x103/0x610 [ 47.942393] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 47.942406] RIP: 0033:0x440e49 [ 47.951367] kobject: 'hci0': free name [ 47.957247] 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 [ 47.957256] RSP: 002b:00007ffe70248328 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 47.957269] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000440e49 [ 47.957277] RDX: 0000000000000002 RSI: 00000000200000c0 RDI: 0000000000000003 [ 47.957285] RBP: 000000000000b9b7 R08: 00000000004002c8 R09: 00000000004002c8 [ 47.957293] R10: 0000000000c4f880 R11: 0000000000000246 R12: 0000000000401ce0 [ 47.957303] R13: 0000000000401d70 R14: 0000000000000000 R15: 0000000000000000 [ 47.964408] kobject: 'rfkill110': free name [ 47.974206] Kernel Offset: disabled [ 48.135606] Rebooting in 86400 seconds..