[ 33.870422] audit: type=1800 audit(1563315365.661:34): pid=6942 uid=0 auid=4294967295 ses=4294967295 subj=system_u:system_r:kernel_t:s0 op="collect_data" cause="failed(directio)" comm="startpar" name="rmnologin" dev="sda1" ino=2456 res=0 Debian GNU/Linux 7 syzkaller ttyS0 syzkaller login: [ 37.168265] random: sshd: uninitialized urandom read (32 bytes read) [ 37.590333] audit: type=1400 audit(1563315369.411:35): avc: denied { map } for pid=7115 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 [ 37.666601] random: sshd: uninitialized urandom read (32 bytes read) [ 38.349550] random: sshd: uninitialized urandom read (32 bytes read) [ 89.380162] audit: type=1400 audit(1563315421.191:36): avc: denied { map } for pid=7123 comm="sh" path="/bin/dash" dev="sda1" ino=1473 scontext=system_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=system_u:object_r:file_t:s0 tclass=file permissive=1 [ 479.668274] random: sshd: uninitialized urandom read (32 bytes read) Warning: Permanently added '10.128.0.242' (ECDSA) to the list of known hosts. [ 485.245978] random: sshd: uninitialized urandom read (32 bytes read) executing program executing program executing program executing program executing program executing program executing program [ 485.367161] audit: type=1400 audit(1563315817.181:37): avc: denied { map } for pid=7130 comm="syz-executor649" path="/root/syz-executor649435328" 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 [ 485.401944] kobject_add_internal failed for hci1 (error: -2 parent: bluetooth) executing program executing program executing program executing program [ 485.419519] 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 [ 485.609361] kobject_add_internal failed for hci1 (error: -2 parent: bluetooth) [ 485.645919] 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 [ 486.544808] kobject_add_internal failed for hci4 (error: -2 parent: bluetooth) [ 486.545683] 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 [ 487.496426] kobject_add_internal failed for hci3 (error: -2 parent: bluetooth) [ 487.516566] 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 [ 487.965327] kobject_add_internal failed for hci3 (error: -2 parent: bluetooth) [ 487.991630] 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 [ 488.093735] kobject_add_internal failed for hci0 (error: -2 parent: bluetooth) [ 488.121391] kobject_add_internal failed for hci3 (error: -2 parent: bluetooth) [ 488.129125] Bluetooth: Can't register HCI device executing program executing program executing program executing program executing program [ 488.161229] 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 [ 488.455707] kobject_add_internal failed for hci1 (error: -2 parent: bluetooth) [ 488.490902] 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 [ 488.643193] kobject_add_internal failed for hci0 (error: -2 parent: bluetooth) [ 488.656162] Bluetooth: Can't register HCI device [ 488.677716] sysfs group 'power' not found for kobject 'rfkill724' executing program [ 488.707926] ------------[ cut here ]------------ [ 488.708063] kobject: 'rfkill730' (ffff88808f0bb6a8): kobject_uevent_env [ 488.712724] WARNING: CPU: 1 PID: 7872 at fs/sysfs/group.c:235 sysfs_remove_group.cold+0x4f/0x69 [ 488.712731] Kernel panic - not syncing: panic_on_warn set ... [ 488.712731] [ 488.712740] CPU: 1 PID: 7872 Comm: syz-executor649 Not tainted 4.14.133 #28 [ 488.712746] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 488.712750] Call Trace: [ 488.712765] dump_stack+0x138/0x19c [ 488.712777] panic+0x1f2/0x426 [ 488.712785] ? add_taint.cold+0x16/0x16 [ 488.712795] ? sysfs_remove_group.cold+0x4f/0x69 [ 488.725368] kobject: 'hci2' (ffff88808e4ce428): kobject_add_internal: parent: 'bluetooth', set: 'devices' [ 488.728394] ? sysfs_remove_group.cold+0x4f/0x69 [ 488.728403] __warn.cold+0x2f/0x36 [ 488.728414] ? ist_end_non_atomic+0x10/0x10 [ 488.728422] ? sysfs_remove_group.cold+0x4f/0x69 [ 488.728437] report_bug+0x216/0x254 [ 488.737110] kobject: 'hci3' (ffff88808f772468): kobject_add_internal: parent: 'bluetooth', set: 'devices' [ 488.742879] do_error_trap+0x1bb/0x310 [ 488.742891] ? math_error+0x360/0x360 [ 488.742905] ? vprintk_emit+0x171/0x600 [ 488.742918] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 488.742930] do_invalid_op+0x1b/0x20 [ 488.742938] invalid_op+0x1b/0x40 [ 488.742949] RIP: 0010:sysfs_remove_group.cold+0x4f/0x69 [ 488.753031] kobject: 'rfkill730' (ffff88808f0bb6a8): fill_kobj_path: path = '/devices/virtual/bluetooth/hci0/rfkill730' [ 488.754873] RSP: 0018:ffff888098077af8 EFLAGS: 00010286 [ 488.754882] RAX: 0000000000000035 RBX: ffffffff86b64ac0 RCX: 0000000000000000 [ 488.754887] RDX: 0000000000000000 RSI: 0000000000000001 RDI: ffffed101300ef55 [ 488.754892] RBP: ffff888098077b18 R08: 0000000000000035 R09: 0000000000000000 [ 488.754897] R10: 0000000000000000 R11: 0000000000000000 R12: ffff8880a71f55c0 [ 488.754902] R13: ffff88808dd8ed28 R14: ffffffff86b650a0 R15: ffffffff845dbb80 [ 488.754918] ? vhci_close_dev+0x50/0x50 [ 488.754937] ? sysfs_remove_group.cold+0x4f/0x69 [ 488.758770] kobject: 'rfkill730' (ffff88808f0bb6a8): kobject_cleanup, parent (null) [ 488.761741] dpm_sysfs_remove+0x58/0x60 [ 488.761751] device_del+0xfc/0xaa0 [ 488.761764] ? lock_downgrade+0x6e0/0x6e0 [ 488.761772] ? __device_links_no_driver+0x220/0x220 [ 488.761784] ? vhci_close_dev+0x50/0x50 [ 488.761795] rfkill_unregister+0xd1/0x2c0 [ 488.761807] ? vhci_close_dev+0x50/0x50 [ 488.766422] kobject: 'rfkill730' (ffff88808f0bb6a8): calling ktype release [ 488.770525] hci_unregister_dev+0x259/0x7d0 [ 488.770538] ? vhci_close_dev+0x50/0x50 [ 488.770546] vhci_release+0x76/0xf0 [ 488.770567] __fput+0x275/0x7a0 [ 488.770582] ____fput+0x16/0x20 [ 488.780639] kobject: 'hci2' (ffff88808e4ce428): kobject_uevent_env [ 488.785051] task_work_run+0x114/0x190 [ 488.785065] do_exit+0x7df/0x2c10 [ 488.785081] ? mm_update_next_owner+0x5d0/0x5d0 [ 488.785095] ? up_read+0x1a/0x40 [ 488.785106] ? __do_page_fault+0x358/0xb80 [ 488.785116] do_group_exit+0x111/0x330 [ 488.788808] kobject: 'hci2' (ffff88808e4ce428): fill_kobj_path: path = '/devices/virtual/bluetooth/hci2' [ 488.792971] SyS_exit_group+0x1d/0x20 [ 488.792978] ? do_group_exit+0x330/0x330 [ 488.792989] do_syscall_64+0x1e8/0x640 [ 488.792997] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 488.793012] entry_SYSCALL_64_after_hwframe+0x42/0xb7 [ 488.793020] RIP: 0033:0x43fee8 [ 488.793025] RSP: 002b:00007ffd55e78ad8 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 488.793034] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 000000000043fee8 [ 488.793038] RDX: 0000000000000000 RSI: 000000000000003c RDI: 0000000000000000 [ 488.793043] RBP: 00000000004bf710 R08: 00000000000000e7 R09: ffffffffffffffd0 [ 488.793047] R10: 0000000000000004 R11: 0000000000000246 R12: 0000000000000001 [ 488.793052] R13: 00000000006d1180 R14: 0000000000000000 R15: 0000000000000000 [ 488.798782] Kernel Offset: disabled [ 489.080216] Rebooting in 86400 seconds..