[ 37.913325] audit: type=1800 audit(1556168792.901:33): pid=7059 uid=0 auid=4294967295 ses=4294967295 subj=system_u:system_r:kernel_t:s0 op="collect_data" cause="failed(directio)" comm="startpar" name="rc.local" dev="sda1" ino=2465 res=0 Debian GNU/Linux 7 syzkaller ttyS0 syzkaller login: [ 41.088034] random: sshd: uninitialized urandom read (32 bytes read) [ 41.487606] kauditd_printk_skb: 1 callbacks suppressed [ 41.487615] audit: type=1400 audit(1556168796.471:35): avc: denied { map } for pid=7228 comm="bash" path="/bin/bash" dev="sda1" ino=1457 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=system_u:object_r:file_t:s0 tclass=file permissive=1 [ 41.547132] random: sshd: uninitialized urandom read (32 bytes read) [ 42.167451] random: sshd: uninitialized urandom read (32 bytes read) [ 42.361845] random: sshd: uninitialized urandom read (32 bytes read) Warning: Permanently added '10.128.0.60' (ECDSA) to the list of known hosts. [ 47.945432] random: sshd: uninitialized urandom read (32 bytes read) executing program executing program executing program executing program [ 48.065987] audit: type=1400 audit(1556168803.051:36): avc: denied { map } for pid=7240 comm="syz-executor349" path="/root/syz-executor349460875" dev="sda1" ino=16483 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:object_r:user_home_t:s0 tclass=file permissive=1 [ 48.108923] kobject_add_internal failed for hci2 (error: -2 parent: bluetooth) executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 48.135794] 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 executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 49.957318] kobject_add_internal failed for hci2 (error: -2 parent: bluetooth) [ 49.977461] kobject_add_internal failed for hci4 (error: -2 parent: bluetooth) [ 49.993295] Bluetooth: Can't register HCI device [ 50.002999] 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 [ 50.007968] kobject_add_internal failed for hci2 (error: -2 parent: bluetooth) [ 50.023338] 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 executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 50.588447] kobject_add_internal failed for hci4 (error: -2 parent: bluetooth) [ 50.589221] kobject_add_internal failed for hci1 (error: -2 parent: bluetooth) [ 50.604424] kobject_add_internal failed for hci5 (error: -2 parent: bluetooth) [ 50.613013] Bluetooth: Can't register HCI device [ 50.626548] Bluetooth: Can't register HCI device executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 50.645725] 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 executing program executing program executing program executing program executing program executing program executing program executing program [ 50.786383] kobject_add_internal failed for hci1 (error: -2 parent: bluetooth) [ 50.823854] 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 executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 51.082299] kobject_add_internal failed for hci2 (error: -2 parent: bluetooth) [ 51.101585] 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 [ 51.147881] kobject_add_internal failed for hci6 (error: -2 parent: bluetooth) [ 51.164008] 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 executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 52.915925] kobject_add_internal failed for hci2 (error: -2 parent: bluetooth) [ 52.928749] 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 executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 53.535510] kobject_add_internal failed for hci1 (error: -2 parent: bluetooth) [ 53.562862] kobject_add_internal failed for hci3 (error: -2 parent: bluetooth) [ 53.570861] Bluetooth: Can't register HCI device [ 53.572199] 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 [ 53.656361] kobject_add_internal failed for hci1 (error: -2 parent: bluetooth) [ 53.656461] 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 executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 54.047418] kobject_add_internal failed for hci1 (error: -2 parent: bluetooth) [ 54.063671] Bluetooth: Can't register HCI device [ 54.078587] kobject_add_internal failed for hci4 (error: -2 parent: bluetooth) executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 54.113822] 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 [ 54.209584] kobject_add_internal failed for hci1 (error: -2 parent: bluetooth) [ 54.229036] 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 [ 54.348339] kernfs_put: bluetooth/hci1: released with incorrect active_ref 0 [ 54.362502] ------------[ cut here ]------------ [ 54.367331] WARNING: CPU: 0 PID: 8575 at fs/kernfs/dir.c:525 kernfs_put.cold+0x8a/0xa4 [ 54.367338] Kernel panic - not syncing: panic_on_warn set ... [ 54.367338] [ 54.382752] CPU: 0 PID: 8575 Comm: syz-executor349 Not tainted 4.14.113 #3 [ 54.389311] kobject: 'hci4' (ffff8880757519e8): fill_kobj_path: path = '/devices/virtual/bluetooth/hci4' [ 54.389763] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 54.408744] Call Trace: [ 54.411378] dump_stack+0x138/0x19c [ 54.415037] panic+0x1f2/0x438 [ 54.417189] kobject: 'rfkill1309' (ffff88809372a0e8): kobject_add_internal: parent: 'hci4', set: 'devices' [ 54.418240] ? add_taint.cold+0x16/0x16 [ 54.418255] ? kernfs_put.cold+0x8a/0xa4 [ 54.418268] ? kernfs_put.cold+0x8a/0xa4 [ 54.418275] __warn.cold+0x2f/0x34 [ 54.418299] ? ist_end_non_atomic+0x10/0x10 [ 54.418307] ? kernfs_put.cold+0x8a/0xa4 [ 54.418315] report_bug+0x216/0x254 [ 54.446304] kobject: 'rfkill1309' (ffff88809372a0e8): kobject_uevent_env [ 54.448073] do_error_trap+0x1bb/0x310 [ 54.448086] ? math_error+0x360/0x360 [ 54.448115] ? vprintk_emit+0x171/0x600 [ 54.448134] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 54.462511] kobject: 'rfkill1309' (ffff88809372a0e8): fill_kobj_path: path = '/devices/virtual/bluetooth/hci4/rfkill1309' [ 54.462635] do_invalid_op+0x1b/0x20 [ 54.476444] kobject: 'rfkill1309' (ffff88809372a0e8): kobject_uevent_env [ 54.479102] invalid_op+0x1b/0x40 [ 54.479116] RIP: 0010:kernfs_put.cold+0x8a/0xa4 [ 54.479124] RSP: 0018:ffff88809805fae0 EFLAGS: 00010286 [ 54.514009] kobject: 'rfkill1309' (ffff88809372a0e8): fill_kobj_path: path = '/devices/virtual/bluetooth/hci4/rfkill1309' [ 54.514196] RAX: 0000000000000040 RBX: dffffc0000000000 RCX: 0000000000000000 [ 54.514204] RDX: 0000000000000000 RSI: 0000000000000001 RDI: ffffed101300bf52 [ 54.539872] RBP: ffff88809805fb38 R08: 0000000000000040 R09: 0000000000000000 [ 54.545522] kobject: 'rfkill1309' (ffff88809372a0e8): kobject_cleanup, parent (null) [ 54.547170] R10: 0000000000000000 R11: 0000000000000000 R12: ffff8880a86c6d20 [ 54.547176] R13: ffff888093b8a540 R14: ffff8880a86c6d50 R15: ffffffff86fa5960 [ 54.547208] ? kernfs_remove+0x30/0x40 [ 54.547221] kobject_del.part.0+0x42/0xf0 [ 54.573675] kobject: 'rfkill1309' (ffff88809372a0e8): calling ktype release [ 54.575876] kobject_del+0x20/0x30 [ 54.575921] device_del+0x68c/0xaa0 [ 54.575934] ? __device_links_no_driver+0x220/0x220 [ 54.608678] ? vhci_close_dev+0x50/0x50 [ 54.612684] hci_unregister_dev+0x298/0x7d0 [ 54.616772] kobject: 'rfkill1309': free name [ 54.617103] ? vhci_close_dev+0x50/0x50 [ 54.625473] vhci_release+0x76/0xf0 [ 54.629134] __fput+0x277/0x7a0 [ 54.630290] kobject: 'hci4' (ffff8880757519e8): kobject_uevent_env [ 54.632419] ____fput+0x16/0x20 [ 54.632440] task_work_run+0x119/0x190 [ 54.632453] do_exit+0x7df/0x2c10 [ 54.641729] kobject: 'hci4' (ffff8880757519e8): fill_kobj_path: path = '/devices/virtual/bluetooth/hci4' [ 54.642048] ? mm_update_next_owner+0x5d0/0x5d0 [ 54.654285] kobject: 'bluetooth' (ffff88808a7e2d80): kobject_cleanup, parent (null) [ 54.658982] ? up_read+0x1a/0x40 [ 54.659011] ? __do_page_fault+0x358/0xb80 [ 54.659024] do_group_exit+0x111/0x330 [ 54.659034] SyS_exit_group+0x1d/0x20 [ 54.659042] ? do_group_exit+0x330/0x330 [ 54.659051] do_syscall_64+0x1eb/0x630 [ 54.678458] kobject: 'bluetooth' (ffff88808a7e2d80): calling ktype release [ 54.680011] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 54.680031] entry_SYSCALL_64_after_hwframe+0x42/0xb7 [ 54.680050] RIP: 0033:0x43fee8 [ 54.680054] RSP: 002b:00007ffe396bbc48 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 54.686819] kobject: 'bluetooth': free name [ 54.687745] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 000000000043fee8 [ 54.700165] kobject: 'hci4' (ffff8880757519e8): kobject_cleanup, parent (null) [ 54.703381] RDX: 0000000000000000 RSI: 000000000000003c RDI: 0000000000000000 [ 54.703387] RBP: 00000000004bf710 R08: 00000000000000e7 R09: ffffffffffffffd0 [ 54.703391] R10: 00000000004002c8 R11: 0000000000000246 R12: 0000000000000001 [ 54.703397] R13: 00000000006d1180 R14: 0000000000000000 R15: 0000000000000000 [ 54.708997] Kernel Offset: disabled [ 54.777332] Rebooting in 86400 seconds..