[ 40.577678][ T26] audit: type=1800 audit(1552682718.410:32): pid=7677 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 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. [ 41.322746][ T26] audit: type=1800 audit(1552682719.230:33): pid=7677 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=2432 res=0 Debian GNU/Linux 7 syzkaller ttyS0 Warning: Permanently added '10.128.0.132' (ECDSA) to the list of known hosts. executing program executing program executing program executing program executing program syzkaller login: [ 70.661159][ T26] kauditd_printk_skb: 2 callbacks suppressed [ 70.661174][ T26] audit: type=1400 audit(1552682748.570:36): avc: denied { map } for pid=7864 comm="syz-executor223" path="/root/syz-executor223731423" 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 [ 70.717351][ T7873] kobject_add_internal failed for hci1 (error: -2 parent: bluetooth) [ 70.735176][ T7873] Bluetooth: Can't register HCI device executing program executing program [ 70.779606][ T7879] kobject_add_internal failed for hci4 (error: -2 parent: bluetooth) [ 70.802257][ T7889] kobject_add_internal failed for hci5 (error: -2 parent: bluetooth) [ 70.813192][ T7890] kobject_add_internal failed for hci3 (error: -2 parent: bluetooth) executing program executing program executing program executing program executing program executing program executing program [ 70.827836][ T7884] kobject_add_internal failed for hci0 (error: -2 parent: bluetooth) [ 70.827876][ T7879] Bluetooth: Can't register HCI device [ 70.840134][ T7890] Bluetooth: Can't register HCI device [ 70.853079][ T7889] Bluetooth: Can't register HCI device [ 70.863591][ T7884] Bluetooth: Can't register HCI device executing program executing program executing program executing program executing program executing program executing program [ 70.906454][ T7894] kobject_add_internal failed for hci2 (error: -2 parent: bluetooth) executing program executing program executing program executing program executing program [ 70.952509][ T7894] 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 [ 71.181873][ T7947] kobject_add_internal failed for hci2 (error: -2 parent: bluetooth) [ 71.201053][ T7947] 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 [ 71.980259][ T8068] kobject_add_internal failed for hci1 (error: -2 parent: bluetooth) executing program executing program executing program executing program executing program executing program [ 72.020413][ T8068] Bluetooth: Can't register HCI device [ 72.035737][ T8075] 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 [ 72.075325][ T8075] 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 [ 72.370858][ T8125] kobject_add_internal failed for hci1 (error: -2 parent: bluetooth) executing program executing program executing program executing program executing program executing program executing program [ 72.422667][ T8125] 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 [ 73.513589][ T8282] kasan: CONFIG_KASAN_INLINE enabled executing program executing program executing program executing program executing program [ 73.544900][ T8282] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 73.572642][ T8289] kobject_add_internal failed for hci2 (error: -2 parent: bluetooth) [ 73.574186][ T8282] general protection fault: 0000 [#1] PREEMPT SMP KASAN [ 73.587693][ T8282] CPU: 0 PID: 8282 Comm: syz-executor223 Not tainted 5.0.0+ #23 [ 73.594093][ T8295] kobject: 'bluetooth' (0000000030d1e33f): kobject_add_internal: parent: 'virtual', set: '(null)' [ 73.595334][ T8282] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 73.595356][ T8282] RIP: 0010:kernfs_add_one+0x343/0x4d0 [ 73.595386][ T8282] 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 [ 73.617554][ T8289] Bluetooth: Can't register HCI device [ 73.621442][ T8282] RSP: 0018:ffff88808ccbf820 EFLAGS: 00010202 [ 73.621454][ T8282] RAX: dffffc0000000000 RBX: 0000000000000000 RCX: ffffffff870e0008 [ 73.621460][ T8282] RDX: 0000000000000001 RSI: ffffffff81d5944b RDI: 0000000000000008 [ 73.621474][ T8282] RBP: ffff88808ccbf860 R08: 1ffffffff1151e1c R09: fffffbfff1151e1d [ 73.656984][ T8295] kobject: 'hci0' (0000000041557399): kobject_add_internal: parent: 'bluetooth', set: 'devices' [ 73.660512][ T8282] R10: fffffbfff1151e1c R11: ffffffff88a8f0e7 R12: ffff8880797fba80 [ 73.660520][ T8282] R13: ffff8880797fba80 R14: 0000000000000000 R15: 0000000000000000 [ 73.660530][ T8282] FS: 00000000007e6880(0000) GS:ffff8880ae800000(0000) knlGS:0000000000000000 [ 73.660544][ T8282] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 73.691564][ T8295] kobject: 'hci0' (0000000041557399): kobject_uevent_env [ 73.695105][ T8282] CR2: 00000000004bf748 CR3: 00000000a02e2000 CR4: 00000000001406f0 [ 73.695116][ T8282] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 73.695122][ T8282] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 73.695133][ T8282] Call Trace: [ 73.713777][ T8289] kobject: 'hci2' (00000000972a4ed6): kobject_cleanup, parent (null) [ 73.718640][ T8282] kernfs_create_dir_ns+0xff/0x160 [ 73.718653][ T8282] sysfs_create_dir_ns+0x131/0x2a0 [ 73.718664][ T8282] ? sysfs_create_mount_point+0xa0/0xa0 [ 73.718681][ T8282] ? class_dir_child_ns_type+0xd/0x60 [ 73.718703][ T8282] kobject_add_internal.cold+0xe5/0x5d4 [ 73.734253][ T8289] kobject: 'hci2' (00000000972a4ed6): calling ktype release executing program executing program executing program [ 73.741657][ T8282] kobject_add+0x150/0x1c0 [ 73.741671][ T8282] ? kset_create_and_add+0x1a0/0x1a0 [ 73.741685][ T8282] ? kasan_check_read+0x11/0x20 [ 73.741699][ T8282] ? mutex_unlock+0xd/0x10 [ 73.741711][ T8282] ? device_add+0x30f/0x18a0 [ 73.741736][ T8282] device_add+0x3d5/0x18a0 [ 73.754157][ T8295] kobject: 'hci0' (0000000041557399): fill_kobj_path: path = '/devices/virtual/bluetooth/hci0' [ 73.761889][ T8282] ? device_initialize+0x440/0x440 [ 73.761904][ T8282] ? get_device_parent.isra.0+0x570/0x570 [ 73.761917][ T8282] ? start_creating+0x163/0x1e0 [ 73.761932][ T8282] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 73.761951][ T8282] hci_register_dev+0x2e8/0x860 [ 73.775568][ T8295] kobject: 'rfkill391' (0000000039cf83d4): kobject_add_internal: parent: 'hci0', set: 'devices' [ 73.777801][ T8282] __vhci_create_device+0x2d0/0x5a0 [ 73.777814][ T8282] vhci_write+0x2d0/0x470 [ 73.777830][ T8282] new_sync_write+0x4c7/0x760 [ 73.777842][ T8282] ? default_llseek+0x2e0/0x2e0 [ 73.777857][ T8282] ? avc_policy_seqno+0xd/0x70 [ 73.777869][ T8282] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 73.777886][ T8282] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 73.783710][ T8289] kobject: 'hci2': free name [ 73.788782][ T8282] ? security_file_permission+0x94/0x380 [ 73.788797][ T8282] __vfs_write+0xe4/0x110 [ 73.788810][ T8282] vfs_write+0x20c/0x580 [ 73.788824][ T8282] ksys_write+0xea/0x1f0 [ 73.788841][ T8282] ? __ia32_sys_read+0xb0/0xb0 [ 73.797639][ T8293] kobject: 'hci2' (000000001ae4cdf1): kobject_add_internal: parent: 'bluetooth', set: 'devices' [ 73.800520][ T8282] ? do_syscall_64+0x26/0x610 [ 73.800538][ T8282] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 73.805999][ T8295] kobject: 'rfkill391' (0000000039cf83d4): kobject_uevent_env [ 73.810627][ T8282] ? do_syscall_64+0x26/0x610 [ 73.810643][ T8282] __x64_sys_write+0x73/0xb0 [ 73.810656][ T8282] do_syscall_64+0x103/0x610 [ 73.810677][ T8282] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 73.810691][ T8282] RIP: 0033:0x441279 [ 73.816257][ T8293] kobject: 'hci2' (000000001ae4cdf1): kobject_uevent_env [ 73.819675][ T8282] 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 [ 73.819682][ T8282] RSP: 002b:00007ffd84cda2f8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 73.819693][ T8282] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000441279 [ 73.819699][ T8282] RDX: 0000000000000002 RSI: 00000000200000c0 RDI: 0000000000000003 [ 73.819707][ T8282] RBP: 0000000000011ed1 R08: 00000000004002c8 R09: 00000000004002c8 [ 73.819713][ T8282] R10: 0000000000000004 R11: 0000000000000246 R12: 0000000000401ff0 [ 73.819719][ T8282] R13: 0000000000402080 R14: 0000000000000000 R15: 0000000000000000 [ 73.819733][ T8282] Modules linked in: [ 73.826141][ T8295] kobject: 'rfkill391' (0000000039cf83d4): fill_kobj_path: path = '/devices/virtual/bluetooth/hci0/rfkill391' [ 73.843102][ T8296] kobject: 'hci3' (000000005a1daa81): kobject_add_internal: parent: 'bluetooth', set: 'devices' [ 73.855052][ T8293] kobject: 'hci2' (000000001ae4cdf1): fill_kobj_path: path = '/devices/virtual/bluetooth/hci2' [ 73.858106][ T8298] kobject: 'hci4' (00000000df9bc57b): kobject_add_internal: parent: 'bluetooth', set: 'devices' [ 73.863376][ T8297] kobject: 'hci5' (000000001f94d1e6): kobject_add_internal: parent: 'bluetooth', set: 'devices' [ 73.874570][ T8296] kobject: 'hci3' (000000005a1daa81): kobject_uevent_env [ 73.904331][ T8297] kobject: 'hci5' (000000001f94d1e6): kobject_uevent_env [ 73.909117][ T8298] kobject: 'hci4' (00000000df9bc57b): kobject_uevent_env [ 73.916189][ T8293] kobject: 'rfkill392' (00000000d347f250): kobject_add_internal: parent: 'hci2', set: 'devices' [ 73.919981][ T8298] kobject: 'hci4' (00000000df9bc57b): fill_kobj_path: path = '/devices/virtual/bluetooth/hci4' [ 73.923471][ T8293] kobject: 'rfkill392' (00000000d347f250): kobject_uevent_env [ 73.932754][ T8282] ---[ end trace 223671e6df9a3647 ]--- [ 73.937500][ T8295] kobject: 'rfkill391' (0000000039cf83d4): kobject_uevent_env [ 73.948825][ T8282] RIP: 0010:kernfs_add_one+0x343/0x4d0 [ 73.956934][ T8297] kobject: 'hci5' (000000001f94d1e6): fill_kobj_path: path = '/devices/virtual/bluetooth/hci5' [ 73.958772][ T8282] 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 [ 73.970818][ T8293] kobject: 'rfkill392' (00000000d347f250): fill_kobj_path: path = '/devices/virtual/bluetooth/hci2/rfkill392' [ 73.975816][ T8282] RSP: 0018:ffff88808ccbf820 EFLAGS: 00010202 [ 73.985185][ T8295] kobject: 'rfkill391' (0000000039cf83d4): fill_kobj_path: path = '/devices/virtual/bluetooth/hci0/rfkill391' [ 73.990222][ T8282] RAX: dffffc0000000000 RBX: 0000000000000000 RCX: ffffffff870e0008 [ 74.004208][ T8293] kobject: 'rfkill392' (00000000d347f250): kobject_uevent_env [ 74.017312][ T8298] kobject: 'rfkill393' (00000000242a17a4): kobject_add_internal: parent: 'hci4', set: 'devices' [ 74.044264][ T8296] kobject: 'hci3' (000000005a1daa81): fill_kobj_path: path = '/devices/virtual/bluetooth/hci3' [ 74.049265][ T8282] RDX: 0000000000000001 RSI: ffffffff81d5944b RDI: 0000000000000008 [ 74.067582][ T8293] kobject: 'rfkill392' (00000000d347f250): fill_kobj_path: path = '/devices/virtual/bluetooth/hci2/rfkill392' [ 74.069926][ T8298] kobject: 'rfkill393' (00000000242a17a4): kobject_uevent_env [ 74.108024][ T8282] RBP: ffff88808ccbf860 R08: 1ffffffff1151e1c R09: fffffbfff1151e1d [ 74.112036][ T8298] kobject: 'rfkill393' (00000000242a17a4): fill_kobj_path: path = '/devices/virtual/bluetooth/hci4/rfkill393' [ 74.121894][ T8282] R10: fffffbfff1151e1c R11: ffffffff88a8f0e7 R12: ffff8880797fba80 [ 74.129845][ T8298] kobject: 'rfkill393' (00000000242a17a4): kobject_uevent_env [ 74.136300][ T8297] kobject: 'rfkill394' (00000000334231a4): kobject_add_internal: parent: 'hci5', set: 'devices' [ 74.143454][ T8298] kobject: 'rfkill393' (00000000242a17a4): fill_kobj_path: path = '/devices/virtual/bluetooth/hci4/rfkill393' [ 74.153900][ T8282] R13: ffff8880797fba80 R14: 0000000000000000 R15: 0000000000000000 [ 74.164597][ T8297] kobject: 'rfkill394' (00000000334231a4): kobject_uevent_env [ 74.174265][ T8282] FS: 00000000007e6880(0000) GS:ffff8880ae900000(0000) knlGS:0000000000000000 [ 74.177662][ T8297] kobject: 'rfkill394' (00000000334231a4): fill_kobj_path: path = '/devices/virtual/bluetooth/hci5/rfkill394' [ 74.184582][ T8282] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 74.190627][ T8295] kobject: 'rfkill391' (0000000039cf83d4): kobject_cleanup, parent (null) [ 74.202324][ T8282] CR2: 00007f3030706000 CR3: 00000000a02e2000 CR4: 00000000001406e0 [ 74.219932][ T8296] kobject: 'rfkill395' (0000000058342265): kobject_add_internal: parent: 'hci3', set: 'devices' [ 74.231652][ T8282] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 74.239145][ T8297] kobject: 'rfkill394' (00000000334231a4): kobject_uevent_env [ 74.249643][ T8282] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 74.260226][ T8296] kobject: 'rfkill395' (0000000058342265): kobject_uevent_env [ 74.267634][ T8282] Kernel panic - not syncing: Fatal exception [ 74.278656][ T8297] kobject: 'rfkill394' (00000000334231a4): fill_kobj_path: path = '/devices/virtual/bluetooth/hci5/rfkill394' [ 74.289011][ T8282] Kernel Offset: disabled [ 74.496512][ T8282] Rebooting in 86400 seconds..