[ 40.429912] audit: type=1800 audit(1556233380.930:32): pid=7593 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=2450 res=0 Starting mcstransd: [....] Starting periodic command scheduler: cron[?25l[?1c7[ ok 8[?25h[?0c. [....] 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 syzkaller login: [ 45.849382] kauditd_printk_skb: 2 callbacks suppressed [ 45.849395] audit: type=1400 audit(1556233386.430:35): avc: denied { map } for pid=7769 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 Warning: Permanently added '10.128.0.153' (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 [ 52.457228] audit: type=1400 audit(1556233393.040:36): avc: denied { map } for pid=7781 comm="syz-executor751" path="/root/syz-executor751269201" 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 executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 53.471917] kobject_add_internal failed for hci1 (error: -2 parent: bluetooth) [ 53.495037] kobject_add_internal failed for hci3 (error: -2 parent: bluetooth) [ 53.507854] Bluetooth: Can't register HCI device [ 53.508135] 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 [ 53.529029] kobject_add_internal failed for hci2 (error: -2 parent: bluetooth) [ 53.540903] kobject_add_internal failed for hci3 (error: -2 parent: bluetooth) [ 53.562504] Bluetooth: Can't register HCI device [ 53.569317] 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 [ 54.031096] kobject_add_internal failed for hci1 (error: -2 parent: bluetooth) [ 54.065175] 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 [ 54.179408] kobject_add_internal failed for hci1 (error: -2 parent: bluetooth) [ 54.214495] 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 [ 56.436405] WARNING: CPU: 1 PID: 8545 at fs/kernfs/dir.c:494 kernfs_get.part.0+0x73/0x90 [ 56.444689] Kernel panic - not syncing: panic_on_warn set ... [ 56.444689] [ 56.445224] kobject: 'bluetooth' (000000007057208c): kobject_add_internal: parent: 'virtual', set: '(null)' [ 56.452147] CPU: 1 PID: 8545 Comm: syz-executor751 Not tainted 4.19.36 #4 [ 56.452156] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 56.452160] Call Trace: [ 56.452181] dump_stack+0x172/0x1f0 [ 56.452205] panic+0x263/0x51d [ 56.452216] ? __warn_printk+0xf3/0xf3 [ 56.452233] ? kernfs_get.part.0+0x73/0x90 [ 56.452248] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 56.462388] kobject: 'hci2' (00000000f1206a10): kobject_add_internal: parent: 'bluetooth', set: 'devices' [ 56.469122] ? __warn.cold+0x5/0x54 [ 56.469136] ? __warn+0xe8/0x1d0 [ 56.469155] ? kernfs_get.part.0+0x73/0x90 [ 56.469167] __warn.cold+0x20/0x54 [ 56.469182] ? kernfs_get.part.0+0x73/0x90 [ 56.469197] report_bug+0x263/0x2b0 [ 56.469214] do_error_trap+0x204/0x360 [ 56.482226] kobject: 'hci2' (00000000f1206a10): kobject_uevent_env [ 56.484754] ? math_error+0x340/0x340 [ 56.484770] ? idr_alloc+0x150/0x150 [ 56.484788] ? error_entry+0x76/0xd0 [ 56.484805] ? trace_hardirqs_off_caller+0x65/0x220 [ 56.484823] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 56.484839] do_invalid_op+0x1b/0x20 [ 56.488479] kobject: 'hci2' (00000000f1206a10): fill_kobj_path: path = '/devices/virtual/bluetooth/hci2' [ 56.491895] invalid_op+0x14/0x20 [ 56.491913] RIP: 0010:kernfs_get.part.0+0x73/0x90 [ 56.491931] Code: e6 e8 01 8a 9e ff 45 85 e4 74 1a e8 77 88 9e ff be 04 00 00 00 48 89 df e8 4a d9 d4 ff f0 ff 03 5b 41 5c 5d c3 e8 5d 88 9e ff <0f> 0b eb dd 48 89 df e8 a1 e9 d4 ff eb c1 0f 1f 44 00 00 66 2e 0f [ 56.491941] RSP: 0018:ffff88808fe17840 EFLAGS: 00010293 [ 56.496841] kobject: 'rfkill746' (00000000d78dec35): kobject_add_internal: parent: 'hci2', set: 'devices' [ 56.501702] RAX: ffff88807dfa2280 RBX: ffff8880a01b6d20 RCX: ffffffff81ccbc8f [ 56.501710] RDX: 0000000000000000 RSI: ffffffff81ccbcb3 RDI: 0000000000000005 [ 56.501719] RBP: ffff88808fe17850 R08: ffff88807dfa2280 R09: ffffed1014036da5 [ 56.501728] R10: ffffed1014036da4 R11: ffff8880a01b6d23 R12: 0000000000000000 [ 56.501736] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000001 [ 56.501762] ? kernfs_get.part.0+0x4f/0x90 [ 56.501776] ? kernfs_get.part.0+0x73/0x90 [ 56.501793] kernfs_new_node+0xb8/0x130 [ 56.512470] kobject: 'rfkill746' (00000000d78dec35): kobject_uevent_env [ 56.515180] kernfs_create_dir_ns+0x52/0x160 [ 56.515198] sysfs_create_dir_ns+0x131/0x290 [ 56.515213] ? sysfs_create_mount_point+0xa0/0xa0 [ 56.515233] ? class_dir_child_ns_type+0xd/0x60 [ 56.515251] kobject_add_internal.cold+0xe5/0x5d4 [ 56.515269] kobject_add+0x150/0x1c0 [ 56.519200] kobject: 'rfkill746' (00000000d78dec35): fill_kobj_path: path = '/devices/virtual/bluetooth/hci2/rfkill746' [ 56.523049] ? kset_create_and_add+0x1a0/0x1a0 [ 56.523070] ? kasan_check_read+0x11/0x20 [ 56.523088] ? mutex_unlock+0xd/0x10 [ 56.523106] ? device_add+0x306/0x1770 [ 56.528867] kobject: 'rfkill746' (00000000d78dec35): kobject_uevent_env [ 56.530866] device_add+0x3cc/0x1770 [ 56.530882] ? device_initialize+0x440/0x440 [ 56.530899] ? get_device_parent.isra.0+0x570/0x570 [ 56.530920] ? start_creating+0x163/0x1e0 [ 56.535091] kobject: 'rfkill746' (00000000d78dec35): fill_kobj_path: path = '/devices/virtual/bluetooth/hci2/rfkill746' [ 56.538411] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 56.538433] hci_register_dev+0x304/0x880 [ 56.538453] __vhci_create_device+0x2d0/0x5a0 [ 56.538468] vhci_write+0x2d6/0x470 [ 56.545337] kobject: 'rfkill746' (00000000d78dec35): kobject_cleanup, parent (null) [ 56.548586] __vfs_write+0x58e/0x820 [ 56.548603] ? kernel_read+0x120/0x120 [ 56.548621] ? __inode_security_revalidate+0xda/0x120 [ 56.548637] ? selinux_file_permission+0x92/0x550 [ 56.552488] kobject: 'rfkill746' (00000000d78dec35): calling ktype release [ 56.556068] ? security_file_permission+0x8f/0x230 [ 56.556085] ? rw_verify_area+0x118/0x360 [ 56.556100] vfs_write+0x20c/0x560 [ 56.556117] ksys_write+0xea/0x1f0 [ 56.556131] ? __ia32_sys_read+0xb0/0xb0 [ 56.556149] ? do_syscall_64+0x26/0x610 [ 56.561759] kobject: 'rfkill746': free name [ 56.565986] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 56.566002] ? do_syscall_64+0x26/0x610 [ 56.566022] __x64_sys_write+0x73/0xb0 [ 56.566037] do_syscall_64+0x103/0x610 [ 56.566053] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 56.566066] RIP: 0033:0x441269 [ 56.570392] kobject: 'hci2' (00000000f1206a10): kobject_uevent_env [ 56.579479] 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 eb 08 fc ff c3 66 2e 0f 1f 84 00 00 00 00 [ 56.579488] RSP: 002b:00007ffe2035a008 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 56.579502] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000000441269 [ 56.579510] RDX: 0000000000000002 RSI: 00000000200000c0 RDI: 0000000000000003 [ 56.579519] RBP: 000000000000dc25 R08: 00000000004002c8 R09: 00000000004002c8 [ 56.579526] R10: 0000000000000004 R11: 0000000000000246 R12: 0000000000401fe0 [ 56.579533] R13: 0000000000402070 R14: 0000000000000000 R15: 0000000000000000 [ 56.584606] Kernel Offset: disabled [ 56.982389] Rebooting in 86400 seconds..