[ 40.522548] audit: type=1800 audit(1551530060.005:31): pid=7777 uid=0 auid=4294967295 ses=4294967295 subj=system_u:system_r:kernel_t:s0 op=collect_data cause=failed(directio) comm="startpar" name="restorecond" dev="sda1" ino=2436 res=0 [ 40.545034] audit: type=1800 audit(1551530060.005:32): pid=7777 uid=0 auid=4294967295 ses=4294967295 subj=system_u:system_r:kernel_t:s0 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 mcstransd: [....] Starting file context maintaining daemon: restorecond[?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 '10.128.0.227' (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 syzkaller login: [ 382.090890] kauditd_printk_skb: 3 callbacks suppressed [ 382.090907] audit: type=1400 audit(1551530401.615:36): avc: denied { map } for pid=7963 comm="syz-executor383" path="/root/syz-executor383245063" dev="sda1" ino=1426 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:object_r:user_home_t:s0 tclass=file permissive=1 executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 382.304329] kobject_add_internal failed for hci4 (error: -2 parent: bluetooth) [ 382.312328] kobject_add_internal failed for hci5 (error: -2 parent: bluetooth) [ 382.320615] Bluetooth: Can't register HCI device [ 382.333797] 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 [ 382.471045] kobject_add_internal failed for hci3 (error: -2 parent: bluetooth) [ 382.478988] Bluetooth: Can't register HCI device [ 382.497164] WARNING: CPU: 1 PID: 8040 at fs/kernfs/dir.c:494 kernfs_get.part.0+0x73/0x90 [ 382.502031] kobject: 'bluetooth' (00000000cc0685e9): kobject_add_internal: parent: 'virtual', set: '(null)' [ 382.505416] Kernel panic - not syncing: panic_on_warn set ... [ 382.505433] CPU: 1 PID: 8040 Comm: syz-executor383 Not tainted 5.0.0-rc8+ #1 [ 382.505441] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 382.505446] Call Trace: [ 382.505470] dump_stack+0x172/0x1f0 [ 382.505488] ? kernfs_unlink_sibling+0x100/0x170 [ 382.505509] panic+0x2cb/0x65c [ 382.505522] ? __warn_printk+0xf3/0xf3 [ 382.505539] ? kernfs_get.part.0+0x73/0x90 [ 382.542468] kobject: 'hci3' (00000000469d6a99): kobject_add_internal: parent: 'bluetooth', set: 'devices' [ 382.544420] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 382.544436] ? __warn.cold+0x5/0x45 [ 382.544454] ? __warn+0xe8/0x1d0 [ 382.544471] ? kernfs_get.part.0+0x73/0x90 [ 382.544483] __warn.cold+0x20/0x45 [ 382.544497] ? kernfs_get.part.0+0x73/0x90 [ 382.552031] kobject: 'hci3' (00000000469d6a99): kobject_uevent_env [ 382.552442] report_bug+0x263/0x2b0 [ 382.556533] kobject: 'hci2' (00000000b7756e64): kobject_add_internal: parent: 'bluetooth', set: 'devices' [ 382.560545] do_error_trap+0x11b/0x200 [ 382.560565] do_invalid_op+0x37/0x50 [ 382.560579] ? kernfs_get.part.0+0x73/0x90 [ 382.560595] invalid_op+0x14/0x20 [ 382.560609] RIP: 0010:kernfs_get.part.0+0x73/0x90 [ 382.560623] Code: e6 e8 e1 cd 9d ff 45 85 e4 74 1a e8 57 cc 9d ff be 04 00 00 00 48 89 df e8 0a a7 d4 ff f0 ff 03 5b 41 5c 5d c3 e8 3d cc 9d ff <0f> 0b eb dd 48 89 df e8 31 cd d4 ff eb c1 0f 1f 44 00 00 66 2e 0f [ 382.560631] RSP: 0018:ffff88808e38f840 EFLAGS: 00010293 [ 382.560643] RAX: ffff888099662300 RBX: ffff8880a0b80d20 RCX: ffffffff81d212bf [ 382.560654] RDX: 0000000000000000 RSI: ffffffff81d212e3 RDI: 0000000000000005 [ 382.571751] kobject: 'hci3' (00000000469d6a99): fill_kobj_path: path = '/devices/virtual/bluetooth/hci3' [ 382.575893] RBP: ffff88808e38f850 R08: ffff888099662300 R09: ffffed10141701a5 [ 382.575903] R10: ffffed10141701a4 R11: ffff8880a0b80d23 R12: 0000000000000000 [ 382.575912] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000001 [ 382.575941] ? kernfs_get.part.0+0x4f/0x90 [ 382.575953] ? kernfs_get.part.0+0x73/0x90 [ 382.575973] kernfs_new_node+0xb8/0x130 [ 382.575989] kernfs_create_dir_ns+0x52/0x160 [ 382.595317] kobject: 'rfkill67' (000000006c672f7e): kobject_add_internal: parent: 'hci3', set: 'devices' [ 382.601258] sysfs_create_dir_ns+0x131/0x2a0 [ 382.601276] ? sysfs_create_mount_point+0xa0/0xa0 [ 382.601303] ? class_dir_child_ns_type+0xd/0x60 [ 382.601323] kobject_add_internal.cold+0xe5/0x5d4 [ 382.601341] kobject_add+0x150/0x1c0 [ 382.601354] ? kset_create_and_add+0x1a0/0x1a0 [ 382.601377] ? mutex_unlock+0xd/0x10 [ 382.601386] ? device_add+0x30f/0x1870 [ 382.601400] device_add+0x3d5/0x1870 [ 382.616779] kobject: 'hci2' (00000000b7756e64): kobject_uevent_env [ 382.618677] ? device_initialize+0x440/0x440 [ 382.618696] ? get_device_parent.isra.0+0x570/0x570 [ 382.618722] hci_register_dev+0x304/0x880 [ 382.618744] __vhci_create_device+0x2d0/0x5a0 [ 382.618760] vhci_write+0x2d0/0x470 [ 382.624056] kobject: 'rfkill67' (000000006c672f7e): kobject_uevent_env [ 382.626700] __vfs_write+0x613/0x8e0 [ 382.626720] ? kernel_read+0x120/0x120 [ 382.626735] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 382.626767] ? rw_verify_area+0x118/0x360 [ 382.626783] vfs_write+0x20c/0x580 [ 382.642019] kobject: 'hci2' (00000000b7756e64): fill_kobj_path: path = '/devices/virtual/bluetooth/hci2' [ 382.654231] ksys_write+0xea/0x1f0 [ 382.654251] ? __ia32_sys_read+0xb0/0xb0 [ 382.654269] ? do_syscall_64+0x26/0x610 [ 382.654286] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 382.654299] ? do_syscall_64+0x26/0x610 [ 382.654318] __x64_sys_write+0x73/0xb0 [ 382.654333] do_syscall_64+0x103/0x610 [ 382.654350] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 382.662582] kobject: 'rfkill67' (000000006c672f7e): fill_kobj_path: path = '/devices/virtual/bluetooth/hci3/rfkill67' [ 382.666990] RIP: 0033:0x440e49 [ 382.667006] 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 [ 382.667014] RSP: 002b:00007ffe0e4f37c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 382.667029] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000440e49 [ 382.667038] RDX: 0000000000000002 RSI: 00000000200000c0 RDI: 0000000000000003 [ 382.667047] RBP: 000000000005d5cb R08: 00000000004002c8 R09: 00000000004002c8 [ 382.667055] R10: 0000000000711880 R11: 0000000000000246 R12: 0000000000401ce0 [ 382.667063] R13: 0000000000401d70 R14: 0000000000000000 R15: 0000000000000000 [ 382.675347] Kernel Offset: disabled [ 382.951000] Rebooting in 86400 seconds..