[ 41.788998] audit: type=1800 audit(1550595231.135:30): pid=7928 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=2457 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: [ 47.582198] kauditd_printk_skb: 4 callbacks suppressed [ 47.582214] audit: type=1400 audit(1550595236.965:35): avc: denied { map } for pid=8101 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 '10.128.0.87' (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 [ 72.417362] audit: type=1400 audit(1550595261.795:36): avc: denied { map } for pid=8113 comm="syz-executor620" path="/root/syz-executor620704204" 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 [ 72.491541] kobject_add_internal failed for hci0 (error: -2 parent: bluetooth) [ 72.526961] 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 [ 73.606499] kobject_add_internal failed for hci0 (error: -2 parent: bluetooth) [ 73.633030] kobject_add_internal failed for hci4 (error: -2 parent: bluetooth) [ 73.642725] Bluetooth: Can't register HCI device [ 73.650736] 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 [ 74.055140] kobject_add_internal failed for hci0 (error: -2 parent: bluetooth) [ 74.068489] Bluetooth: Can't register HCI device [ 74.075636] kobject_add_internal failed for hci1 (error: -2 parent: bluetooth) executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 74.106250] 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 [ 74.226773] kobject_add_internal failed for hci0 (error: -2 parent: bluetooth) [ 74.245239] kobject_add_internal failed for hci1 (error: -2 parent: bluetooth) [ 74.257773] Bluetooth: Can't register HCI device [ 74.263667] Bluetooth: Can't register HCI device executing program executing program executing program executing program executing program executing program executing program [ 74.275710] kasan: CONFIG_KASAN_INLINE enabled executing program executing program executing program executing program executing program [ 74.306285] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 74.338193] general protection fault: 0000 [#1] PREEMPT SMP KASAN [ 74.339508] kobject: 'hci5' (000000009b89633c): kobject_add_internal: parent: 'bluetooth', set: 'devices' [ 74.344462] CPU: 0 PID: 8605 Comm: syz-executor620 Not tainted 5.0.0-rc7+ #78 [ 74.344470] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 74.344490] RIP: 0010:kernfs_add_one+0x343/0x4d0 [ 74.344503] Code: 48 89 fa 48 c1 ea 03 80 3c 02 00 0f 85 52 01 00 00 48 b8 00 00 00 00 00 fc ff df 48 8b 5b 70 48 8d 7b 08 48 89 fa 48 c1 ea 03 <0f> b6 04 02 84 c0 74 08 3c 03 0f 8e 1f 01 00 00 8b 5b 08 31 ff 83 [ 74.344511] RSP: 0018:ffff888098d97858 EFLAGS: 00010202 [ 74.344522] RAX: dffffc0000000000 RBX: 0000000000000000 RCX: ffffffff870246c8 [ 74.344530] RDX: 0000000000000001 RSI: ffffffff81d2548b RDI: 0000000000000008 [ 74.344538] RBP: ffff888098d97898 R08: 1ffffffff115123c R09: fffffbfff115123d [ 74.344547] R10: fffffbfff115123c R11: ffffffff88a891e7 R12: ffff888093c6f620 [ 74.344554] R13: ffff888093c6f620 R14: 0000000000000000 R15: 0000000000000000 [ 74.344565] FS: 0000000001d8f880(0000) GS:ffff8880ae800000(0000) knlGS:0000000000000000 [ 74.344574] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 74.344585] CR2: 00000000006cb090 CR3: 000000008bb62000 CR4: 00000000001406f0 [ 74.359948] kobject: 'hci3' (000000001aebdb23): kobject_uevent_env [ 74.361543] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 74.361552] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 74.361556] Call Trace: [ 74.361574] kernfs_create_dir_ns+0xff/0x160 [ 74.361590] sysfs_create_dir_ns+0x131/0x2a0 [ 74.361606] ? sysfs_create_mount_point+0xa0/0xa0 [ 74.371304] kobject: 'hci3' (000000001aebdb23): fill_kobj_path: path = '/devices/virtual/bluetooth/hci3' [ 74.375699] ? class_dir_child_ns_type+0xd/0x60 [ 74.375717] kobject_add_internal.cold+0xe5/0x5d4 [ 74.395126] kobject: 'hci3' (000000001aebdb23): kobject_cleanup, parent (null) [ 74.399977] kobject_add+0x150/0x1c0 [ 74.399993] ? kset_create_and_add+0x1a0/0x1a0 [ 74.407545] kobject: 'hci3' (000000001aebdb23): calling ktype release [ 74.414549] ? mutex_unlock+0xd/0x10 [ 74.414561] ? device_add+0x30f/0x1870 [ 74.414574] device_add+0x3d5/0x1870 [ 74.414593] ? device_initialize+0x440/0x440 [ 74.422665] kobject: 'hci3': free name executing program [ 74.429562] ? get_device_parent.isra.0+0x570/0x570 [ 74.429581] hci_register_dev+0x304/0x880 [ 74.429599] __vhci_create_device+0x2d0/0x5a0 [ 74.438513] kobject: 'rfkill489' (00000000b658a6d5): kobject_uevent_env [ 74.445072] vhci_write+0x2d0/0x470 [ 74.445090] __vfs_write+0x613/0x8e0 [ 74.445105] ? kernel_read+0x120/0x120 [ 74.451595] kobject: 'rfkill487' (00000000185d7536): kobject_uevent_env [ 74.458237] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 74.458259] ? rw_verify_area+0x118/0x360 [ 74.471006] kobject: 'hci5' (000000009b89633c): kobject_uevent_env [ 74.471844] vfs_write+0x20c/0x580 [ 74.479121] kobject: 'hci5' (000000009b89633c): fill_kobj_path: path = '/devices/virtual/bluetooth/hci5' [ 74.481673] ksys_write+0xea/0x1f0 [ 74.481688] ? __ia32_sys_read+0xb0/0xb0 [ 74.481706] ? do_syscall_64+0x26/0x610 [ 74.513806] kobject: 'rfkill489' (00000000b658a6d5): fill_kobj_path: path = '/devices/virtual/bluetooth/hci4/rfkill489' [ 74.514398] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 74.524710] kobject: 'rfkill487' (00000000185d7536): fill_kobj_path: path = '/devices/virtual/bluetooth/hci1/rfkill487' [ 74.526312] ? do_syscall_64+0x26/0x610 [ 74.526330] __x64_sys_write+0x73/0xb0 [ 74.526346] do_syscall_64+0x103/0x610 [ 74.556414] kobject: 'rfkill488' (0000000007330821): kobject_cleanup, parent (null) [ 74.557048] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 74.557061] RIP: 0033:0x440e49 [ 74.562208] kobject: 'rfkill490' (000000008c6b84e8): kobject_add_internal: parent: 'hci5', set: 'devices' [ 74.566211] 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 [ 74.570902] kobject: 'rfkill490' (000000008c6b84e8): kobject_uevent_env [ 74.577411] RSP: 002b:00007ffe9311dd38 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 74.577424] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000440e49 [ 74.577431] RDX: 0000000000000002 RSI: 00000000200000c0 RDI: 0000000000000003 [ 74.577443] RBP: 00000000000121bc R08: 00000000004002c8 R09: 00000000004002c8 [ 74.581494] kobject: 'rfkill488' (0000000007330821): calling ktype release [ 74.584757] R10: 0000000001d8f880 R11: 0000000000000246 R12: 0000000000401ce0 [ 74.584765] R13: 0000000000401d70 R14: 0000000000000000 R15: 0000000000000000 [ 74.584778] Modules linked in: [ 74.588925] kobject: 'rfkill489' (00000000b658a6d5): kobject_uevent_env [ 74.599264] kobject: 'hci3' (0000000059a1068a): kobject_add_internal: parent: 'bluetooth', set: 'devices' [ 74.614572] kobject: 'rfkill488': free name [ 74.616405] kobject: 'hci3' (0000000059a1068a): kobject_uevent_env [ 74.648459] kobject: 'rfkill489' (00000000b658a6d5): fill_kobj_path: path = '/devices/virtual/bluetooth/hci4/rfkill489' [ 74.653613] kobject: 'hci3' (0000000059a1068a): fill_kobj_path: path = '/devices/virtual/bluetooth/hci3' [ 74.676050] kobject: 'rfkill490' (000000008c6b84e8): fill_kobj_path: path = '/devices/virtual/bluetooth/hci5/rfkill490' [ 74.685293] ---[ end trace 14f5c15bc66c9aa5 ]--- [ 74.690884] kobject: 'hci0' (000000009e005c32): kobject_uevent_env [ 74.692702] RIP: 0010:kernfs_add_one+0x343/0x4d0 [ 74.730827] kobject: 'rfkill487' (00000000185d7536): kobject_cleanup, parent (null) [ 74.736587] Code: 48 89 fa 48 c1 ea 03 80 3c 02 00 0f 85 52 01 00 00 48 b8 00 00 00 00 00 fc ff df 48 8b 5b 70 48 8d 7b 08 48 89 fa 48 c1 ea 03 <0f> b6 04 02 84 c0 74 08 3c 03 0f 8e 1f 01 00 00 8b 5b 08 31 ff 83 [ 74.745763] kobject: 'rfkill490' (000000008c6b84e8): kobject_uevent_env [ 74.750561] kobject: 'rfkill491' (000000001d625976): kobject_add_internal: parent: 'hci3', set: 'devices' [ 74.767176] kobject: 'hci0' (000000009e005c32): fill_kobj_path: path = '/devices/virtual/bluetooth/hci0' [ 74.772605] RSP: 0018:ffff888098d97858 EFLAGS: 00010202 [ 74.790214] kobject: 'rfkill487' (00000000185d7536): calling ktype release [ 74.799760] kobject: 'rfkill491' (000000001d625976): kobject_uevent_env [ 74.814010] kobject: 'hci0' (000000009e005c32): kobject_cleanup, parent (null) [ 74.821247] kobject: 'rfkill491' (000000001d625976): fill_kobj_path: path = '/devices/virtual/bluetooth/hci3/rfkill491' [ 74.845636] kobject: 'rfkill490' (000000008c6b84e8): fill_kobj_path: path = '/devices/virtual/bluetooth/hci5/rfkill490' [ 74.846837] kobject: 'rfkill489' (00000000b658a6d5): kobject_cleanup, parent (null) [ 74.869413] RAX: dffffc0000000000 RBX: 0000000000000000 RCX: ffffffff870246c8 [ 74.885630] kobject: 'rfkill487': free name [ 74.893968] kobject: 'rfkill491' (000000001d625976): kobject_uevent_env [ 74.901794] kobject: 'hci1' (00000000a37cc057): kobject_uevent_env [ 74.916646] kobject: 'rfkill490' (000000008c6b84e8): kobject_cleanup, parent (null) [ 74.923911] kobject: 'rfkill489' (00000000b658a6d5): calling ktype release [ 74.941909] kobject: 'rfkill490' (000000008c6b84e8): calling ktype release [ 74.949806] kobject: 'hci0' (000000009e005c32): calling ktype release [ 74.961898] kobject: 'hci1' (00000000a37cc057): fill_kobj_path: path = '/devices/virtual/bluetooth/hci1' [ 74.969444] kobject: 'hci0': free name [ 74.989670] kobject: 'rfkill491' (000000001d625976): fill_kobj_path: path = '/devices/virtual/bluetooth/hci3/rfkill491' [ 74.994252] kobject: 'rfkill489': free name executing program [ 75.014778] kobject: 'hci1' (00000000a37cc057): kobject_cleanup, parent (null) [ 75.017256] RDX: 0000000000000001 RSI: ffffffff81d2548b RDI: 0000000000000008 [ 75.028901] kobject: 'rfkill490': free name [ 75.033239] RBP: ffff888098d97898 R08: 1ffffffff115123c R09: fffffbfff115123d [ 75.040050] kobject: 'rfkill491' (000000001d625976): kobject_cleanup, parent (null) [ 75.048291] kobject: 'hci4' (000000009c18dd82): kobject_uevent_env [ 75.053607] kobject: 'hci5' (000000009b89633c): kobject_uevent_env [ 75.061909] kobject: 'hci4' (000000009c18dd82): fill_kobj_path: path = '/devices/virtual/bluetooth/hci4' [ 75.068283] kobject: 'hci1' (00000000a37cc057): calling ktype release [ 75.072846] R10: fffffbfff115123c R11: ffffffff88a891e7 R12: ffff888093c6f620 [ 75.079529] kobject: 'hci1': free name [ 75.088606] kobject: 'hci4' (000000009c18dd82): kobject_cleanup, parent (null) [ 75.097656] kobject: 'hci0' (00000000a19a479a): kobject_add_internal: parent: 'bluetooth', set: 'devices' [ 75.101355] kobject: 'hci4' (000000009c18dd82): calling ktype release [ 75.110672] kobject: 'rfkill491' (000000001d625976): calling ktype release executing program [ 75.117410] R13: ffff888093c6f620 R14: 0000000000000000 R15: 0000000000000000 [ 75.124500] kobject: 'hci5' (000000009b89633c): fill_kobj_path: path = '/devices/virtual/bluetooth/hci5' [ 75.125802] kobject: 'hci5' (000000009b89633c): kobject_cleanup, parent (null) [ 75.128682] FS: 0000000001d8f880(0000) GS:ffff8880ae800000(0000) knlGS:0000000000000000 [ 75.137722] kobject: 'rfkill491': free name [ 75.147757] kobject: 'hci4': free name [ 75.153196] kobject: 'hci5' (000000009b89633c): calling ktype release executing program [ 75.160471] kobject: 'hci0' (00000000a19a479a): kobject_uevent_env [ 75.169228] kobject: 'hci1' (000000005ce2afb3): kobject_add_internal: parent: 'bluetooth', set: 'devices' [ 75.178940] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 75.185791] kobject: 'hci5': free name [ 75.194741] kobject: 'hci0' (00000000a19a479a): fill_kobj_path: path = '/devices/virtual/bluetooth/hci0' [ 75.198354] kobject: 'hci3' (0000000059a1068a): kobject_uevent_env [ 75.202566] kobject: 'rfkill492' (000000001512904b): kobject_add_internal: parent: 'hci0', set: 'devices' executing program [ 75.212364] kobject: 'hci4' (00000000c2a3ec1f): kobject_add_internal: parent: 'bluetooth', set: 'devices' [ 75.215497] CR2: 00007ffe9311dd44 CR3: 000000008bb62000 CR4: 00000000001406f0 [ 75.224963] kobject: 'hci3' (0000000059a1068a): fill_kobj_path: path = '/devices/virtual/bluetooth/hci3' [ 75.231183] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 75.234948] kobject: 'hci1' (000000005ce2afb3): kobject_uevent_env [ 75.244889] kobject: 'rfkill492' (000000001512904b): kobject_uevent_env [ 75.251903] kobject: 'hci1' (000000005ce2afb3): fill_kobj_path: path = '/devices/virtual/bluetooth/hci1' [ 75.261302] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 75.271700] kobject: 'hci3' (0000000059a1068a): kobject_cleanup, parent (null) [ 75.278222] kobject: 'rfkill492' (000000001512904b): fill_kobj_path: path = '/devices/virtual/bluetooth/hci0/rfkill492' [ 75.287306] kobject: 'hci4' (00000000c2a3ec1f): kobject_uevent_env [ 75.294768] Kernel panic - not syncing: Fatal exception [ 75.302588] kobject: 'hci3' (00000000b6506698): kobject_add_internal: parent: 'bluetooth', set: 'devices' [ 75.308489] Kernel Offset: disabled [ 75.369412] Rebooting in 86400 seconds..