[ 43.749879] audit: type=1800 audit(1563314481.803:30): 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="mcstrans" dev="sda1" ino=2490 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: [ 48.290778] kauditd_printk_skb: 4 callbacks suppressed [ 48.290795] audit: type=1400 audit(1563314486.393:35): avc: denied { map } for pid=7952 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 '10.128.0.211' (ECDSA) to the list of known hosts. [ 54.909911] audit: type=1400 audit(1563314493.013:36): avc: denied { map } for pid=7964 comm="syz-executor206" path="/root/syz-executor206540951" dev="sda1" ino=16484 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:object_r:user_home_t:s0 tclass=file permissive=1 [ 55.260824] kobject_add_internal failed for hci4 (error: -2 parent: bluetooth) [ 55.269666] kobject_add_internal failed for hci5 (error: -2 parent: bluetooth) [ 55.278110] Bluetooth: Can't register HCI device [ 55.307258] Bluetooth: Can't register HCI device [ 55.558837] kobject_add_internal failed for hci0 (error: -2 parent: bluetooth) [ 55.566507] kobject_add_internal failed for hci1 (error: -2 parent: bluetooth) [ 55.578429] Bluetooth: Can't register HCI device [ 55.584717] Bluetooth: Can't register HCI device [ 57.093488] kobject_add_internal failed for hci0 (error: -2 parent: bluetooth) [ 57.116581] Bluetooth: Can't register HCI device [ 57.147500] kobject_add_internal failed for hci0 (error: -2 parent: bluetooth) [ 57.159325] Bluetooth: Can't register HCI device [ 57.322491] kobject_add_internal failed for hci1 (error: -2 parent: bluetooth) [ 57.359258] Bluetooth: Can't register HCI device [ 57.423129] kobject_add_internal failed for hci0 (error: -2 parent: bluetooth) [ 57.460097] Bluetooth: Can't register HCI device [ 57.483238] kobject_add_internal failed for hci0 (error: -2 parent: bluetooth) [ 57.516658] Bluetooth: Can't register HCI device [ 58.027597] kobject_add_internal failed for hci2 (error: -2 parent: bluetooth) [ 58.042985] Bluetooth: Can't register HCI device [ 58.055792] kobject_add_internal failed for hci4 (error: -2 parent: bluetooth) [ 58.092993] Bluetooth: Can't register HCI device [ 61.745017] kobject_add_internal failed for hci5 (error: -2 parent: bluetooth) [ 61.757054] kobject_add_internal failed for hci4 (error: -2 parent: bluetooth) [ 61.768595] Bluetooth: Can't register HCI device [ 61.774236] Bluetooth: Can't register HCI device [ 63.480935] kobject_add_internal failed for hci1 (error: -2 parent: bluetooth) [ 63.501306] Bluetooth: Can't register HCI device [ 64.630744] kobject_add_internal failed for hci3 (error: -2 parent: bluetooth) [ 64.630886] kobject_add_internal failed for hci4 (error: -2 parent: bluetooth) [ 64.638590] kobject_add_internal failed for hci0 (error: -2 parent: bluetooth) [ 64.666041] Bluetooth: Can't register HCI device [ 64.672318] Bluetooth: Can't register HCI device [ 64.681138] Bluetooth: Can't register HCI device [ 65.039738] kobject_add_internal failed for hci3 (error: -2 parent: bluetooth) [ 65.054456] Bluetooth: Can't register HCI device [ 66.238643] kobject_add_internal failed for hci2 (error: -2 parent: bluetooth) [ 66.267026] Bluetooth: Can't register HCI device [ 66.288309] kobject_add_internal failed for hci1 (error: -2 parent: bluetooth) [ 66.308263] Bluetooth: Can't register HCI device [ 67.474626] kobject_add_internal failed for hci5 (error: -2 parent: bluetooth) [ 67.490583] Bluetooth: Can't register HCI device [ 67.523111] kobject_add_internal failed for hci3 (error: -2 parent: bluetooth) [ 67.534931] Bluetooth: Can't register HCI device [ 67.561948] kobject_add_internal failed for hci0 (error: -2 parent: bluetooth) [ 67.590238] Bluetooth: Can't register HCI device [ 69.861614] kobject_add_internal failed for hci0 (error: -2 parent: bluetooth) [ 69.874048] Bluetooth: Can't register HCI device [ 72.143371] kobject_add_internal failed for hci1 (error: -2 parent: bluetooth) [ 72.143389] kobject_add_internal failed for hci0 (error: -2 parent: bluetooth) [ 72.174806] kobject_add_internal failed for hci3 (error: -2 parent: bluetooth) [ 72.184993] Bluetooth: Can't register HCI device [ 72.186568] Bluetooth: Can't register HCI device [ 72.211218] Bluetooth: Can't register HCI device [ 72.247615] kobject_add_internal failed for hci1 (error: -2 parent: bluetooth) [ 72.276396] Bluetooth: Can't register HCI device [ 72.592126] WARNING: CPU: 0 PID: 10935 at fs/kernfs/dir.c:494 kernfs_get.part.0+0x73/0x90 [ 72.592970] kobject: 'rfkill2929' (0000000074760c31): kobject_uevent_env [ 72.600482] Kernel panic - not syncing: panic_on_warn set ... [ 72.600482] [ 72.600501] CPU: 0 PID: 10935 Comm: syz-executor206 Not tainted 4.19.59 #32 [ 72.600508] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 72.600514] Call Trace: [ 72.600540] dump_stack+0x172/0x1f0 [ 72.600562] panic+0x263/0x507 [ 72.600578] ? __warn_printk+0xf3/0xf3 [ 72.600598] ? kernfs_get.part.0+0x73/0x90 [ 72.600615] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 72.600628] ? __warn.cold+0x5/0x4a [ 72.600639] ? __warn+0xe8/0x1d0 [ 72.600655] ? kernfs_get.part.0+0x73/0x90 [ 72.600669] __warn.cold+0x20/0x4a [ 72.600684] ? kernfs_get.part.0+0x73/0x90 [ 72.600698] report_bug+0x263/0x2b0 [ 72.600718] do_error_trap+0x204/0x360 [ 72.600732] ? math_error+0x340/0x340 [ 72.600748] ? lock_downgrade+0x810/0x810 [ 72.600761] ? idr_alloc+0x150/0x150 [ 72.600779] ? error_entry+0x76/0xd0 [ 72.600806] ? trace_hardirqs_off_caller+0x65/0x220 [ 72.600828] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 72.600846] do_invalid_op+0x1b/0x20 [ 72.600863] invalid_op+0x14/0x20 [ 72.600876] RIP: 0010:kernfs_get.part.0+0x73/0x90 [ 72.600889] Code: e6 e8 31 49 9e ff 45 85 e4 74 1a e8 a7 47 9e ff be 04 00 00 00 48 89 df e8 2a a8 d4 ff f0 ff 03 5b 41 5c 5d c3 e8 8d 47 9e ff <0f> 0b eb dd 48 89 df e8 81 b8 d4 ff eb c1 0f 1f 44 00 00 66 2e 0f [ 72.615722] kobject: 'hci3' (00000000d61e4f64): kobject_add_internal: parent: 'bluetooth', set: 'devices' [ 72.622295] RSP: 0018:ffff8880a94a7838 EFLAGS: 00010293 [ 72.622311] RAX: ffff88807e6b01c0 RBX: ffff888095df22a0 RCX: ffffffff81ccce6f [ 72.622318] RDX: 0000000000000000 RSI: ffffffff81ccce93 RDI: 0000000000000005 [ 72.622327] RBP: ffff8880a94a7848 R08: ffff88807e6b01c0 R09: ffffed1012bbe455 [ 72.622336] R10: ffffed1012bbe454 R11: ffff888095df22a3 R12: 0000000000000000 [ 72.622344] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000001 [ 72.622380] ? kernfs_get.part.0+0x4f/0x90 [ 72.622394] ? kernfs_get.part.0+0x73/0x90 [ 72.622417] ? kernfs_get.part.0+0x73/0x90 [ 72.633493] kobject: 'hci4' (00000000191b7bba): kobject_add_internal: parent: 'bluetooth', set: 'devices' [ 72.634394] kernfs_new_node+0xb8/0x130 [ 72.634418] kernfs_create_dir_ns+0x52/0x160 [ 72.634436] sysfs_create_dir_ns+0x131/0x290 [ 72.634451] ? sysfs_create_mount_point+0xa0/0xa0 [ 72.634474] ? class_dir_child_ns_type+0xd/0x60 [ 72.638508] kobject: 'hci4' (00000000191b7bba): kobject_uevent_env [ 72.641293] kobject_add_internal.cold+0xe5/0x5d1 [ 72.641316] kobject_add+0x150/0x1c0 [ 72.641332] ? kset_create_and_add+0x1a0/0x1a0 [ 72.641354] ? kasan_check_read+0x11/0x20 [ 72.641371] ? mutex_unlock+0xd/0x10 [ 72.641390] ? device_add+0x306/0x1760 [ 72.646663] kobject: 'hci4' (00000000191b7bba): fill_kobj_path: path = '/devices/virtual/bluetooth/hci4' [ 72.649605] device_add+0x3cc/0x1760 [ 72.649623] ? device_initialize+0x440/0x440 [ 72.649643] ? get_device_parent.isra.0+0x570/0x570 [ 72.649660] ? start_creating+0x163/0x1e0 [ 72.649680] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 72.649701] hci_register_dev+0x304/0x880 [ 72.656309] kobject: 'rfkill2929' (0000000074760c31): fill_kobj_path: path = '/devices/virtual/bluetooth/hci2/rfkill2929' [ 72.658888] __vhci_create_device+0x2d0/0x5a0 [ 72.658910] vhci_write+0x2d6/0x470 [ 72.658931] __vfs_write+0x587/0x810 [ 72.658950] ? kernel_read+0x120/0x120 [ 72.658971] ? __inode_security_revalidate+0xda/0x120 [ 72.658991] ? selinux_file_permission+0x92/0x550 [ 72.662985] kobject: 'hci3' (00000000d61e4f64): kobject_uevent_env [ 72.666633] ? security_file_permission+0x89/0x230 [ 72.666652] ? rw_verify_area+0x118/0x360 [ 72.666669] vfs_write+0x20c/0x560 [ 72.666690] ksys_write+0x14f/0x2d0 [ 72.666707] ? __ia32_sys_read+0xb0/0xb0 [ 72.666723] ? do_syscall_64+0x26/0x620 [ 72.666739] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 72.666751] ? do_syscall_64+0x26/0x620 [ 72.666767] __x64_sys_write+0x73/0xb0 [ 72.666794] do_syscall_64+0xfd/0x620 [ 72.671380] kobject: 'rfkill2930' (000000008fbf076a): kobject_add_internal: parent: 'hci4', set: 'devices' [ 72.674582] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 72.674596] RIP: 0033:0x441259 [ 72.674613] 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 [ 72.674621] RSP: 002b:00007ffe167f7a48 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 72.674637] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000000441259 [ 72.674646] RDX: 0000000000000002 RSI: 0000000020000100 RDI: 0000000000000003 [ 72.674654] RBP: 0000000000011b11 R08: 00000000004002c8 R09: 00000000004002c8 [ 72.674662] R10: 0000000000000004 R11: 0000000000000246 R12: 0000000000401fd0 [ 72.674675] R13: 0000000000402060 R14: 0000000000000000 R15: 0000000000000000 [ 72.680537] kobject: 'rfkill2929' (0000000074760c31): kobject_uevent_env [ 72.687182] Kernel Offset: disabled [ 73.080054] Rebooting in 86400 seconds..