Warning: Permanently added '10.128.0.22' (ECDSA) to the list of known hosts.
[ 1001.140529] random: sshd: uninitialized urandom read (32 bytes read)
[ 1001.232400] audit: type=1400 audit(1555710268.199:7): avc:  denied  { map } for  pid=1947 comm="syz-execprog" path="/root/syz-execprog" 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
2019/04/19 21:44:29 parsed 1 programs
[ 1002.126143] audit: type=1400 audit(1555710269.089:8): avc:  denied  { map } for  pid=1947 comm="syz-execprog" path="/sys/kernel/debug/kcov" dev="debugfs" ino=5011 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=system_u:object_r:debugfs_t:s0 tclass=file permissive=1
[ 1002.728409] random: cc1: uninitialized urandom read (8 bytes read)
2019/04/19 21:44:31 executed programs: 0
[ 1004.294325] audit: type=1400 audit(1555710271.259:9): avc:  denied  { map } for  pid=1947 comm="syz-execprog" path="/root/syzkaller-shm115658743" dev="sda1" ino=16482 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:object_r:file_t:s0 tclass=file permissive=1
[ 1288.150152] INFO: task syz-executor.3:1965 blocked for more than 140 seconds.
[ 1288.157628]       Not tainted 4.14.112+ #57
[ 1288.162509] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[ 1288.170506] syz-executor.3  D24576  1965      1 0x00000004
[ 1288.176126] Call Trace:
[ 1288.178825]  ? __schedule+0x91c/0x1f30
[ 1288.182790]  ? __sched_text_start+0x8/0x8
[ 1288.186941]  ? lock_downgrade+0x5d0/0x5d0
[ 1288.191140]  ? lock_acquire+0x10f/0x380
[ 1288.195177]  ? __mutex_lock+0x2c1/0x1430
[ 1288.199420]  schedule+0x92/0x1c0
[ 1288.202835]  schedule_preempt_disabled+0x13/0x20
[ 1288.207770]  __mutex_lock+0x559/0x1430
[ 1288.211773]  ? __mutex_lock+0x6aa/0x1430
[ 1288.215875]  ? __mutex_unlock_slowpath+0x9a/0x7d0
[ 1288.220763]  ? lo_open+0x19/0xb0
[ 1288.224130]  ? __ww_mutex_wakeup_for_backoff+0x210/0x210
[ 1288.229567]  ? __ww_mutex_wakeup_for_backoff+0x210/0x210
[ 1288.235081]  ? kobject_get_unless_zero+0x27/0x40
[ 1288.239928]  ? lock_downgrade+0x5d0/0x5d0
[ 1288.244148]  ? refcount_inc_not_zero+0x81/0xe0
[ 1288.248735]  ? check_preemption_disabled+0x35/0x1f0
[ 1288.253798]  ? loop_unregister_transfer+0x90/0x90
[ 1288.258748]  ? lo_open+0x19/0xb0
[ 1288.262157]  lo_open+0x19/0xb0
[ 1288.265353]  __blkdev_get+0x267/0xf90
[ 1288.269137]  ? __blkdev_put+0x6d0/0x6d0
[ 1288.273154]  ? fsnotify+0x8b0/0x1150
[ 1288.276875]  blkdev_get+0x97/0x8b0
[ 1288.280471]  ? bd_acquire+0x171/0x2c0
[ 1288.284284]  ? bd_may_claim+0xd0/0xd0
[ 1288.288071]  ? lock_downgrade+0x5d0/0x5d0
[ 1288.292743]  ? lock_acquire+0x10f/0x380
[ 1288.296711]  ? bd_acquire+0x21/0x2c0
[ 1288.300524]  blkdev_open+0x1cc/0x250
[ 1288.304242]  ? security_file_open+0x88/0x190
[ 1288.308678]  do_dentry_open+0x44e/0xdf0
[ 1288.312759]  ? bd_acquire+0x2c0/0x2c0
[ 1288.316603]  vfs_open+0x105/0x230
[ 1288.320145]  path_openat+0xb6b/0x2b70
[ 1288.324131]  ? path_mountpoint+0x9a0/0x9a0
[ 1288.328353]  ? trace_hardirqs_on+0x10/0x10
[ 1288.332822]  do_filp_open+0x1a1/0x280
[ 1288.336625]  ? may_open_dev+0xe0/0xe0
[ 1288.340525]  ? lock_downgrade+0x5d0/0x5d0
[ 1288.344717]  ? lock_acquire+0x10f/0x380
[ 1288.348724]  ? __alloc_fd+0x3f/0x490
[ 1288.352499]  ? _raw_spin_unlock+0x29/0x40
[ 1288.356692]  ? __alloc_fd+0x1bf/0x490
[ 1288.360554]  do_sys_open+0x2ca/0x590
[ 1288.364272]  ? filp_open+0x60/0x60
[ 1288.367792]  ? SyS_mkdirat+0x146/0x220
[ 1288.371744]  ? do_syscall_64+0x43/0x4b0
[ 1288.375718]  ? do_sys_open+0x590/0x590
[ 1288.379588]  do_syscall_64+0x19b/0x4b0
[ 1288.383530]  ? entry_SYSCALL_64_after_hwframe+0x42/0xb7
[ 1288.388904] INFO: task syz-executor.4:1968 blocked for more than 140 seconds.
[ 1288.396216]       Not tainted 4.14.112+ #57
[ 1288.400608] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[ 1288.408569] syz-executor.4  D25640  1968      1 0x00000004
[ 1288.414291] Call Trace:
[ 1288.416883]  ? __schedule+0x91c/0x1f30
[ 1288.421289]  ? __sched_text_start+0x8/0x8
[ 1288.425440]  ? lock_downgrade+0x5d0/0x5d0
[ 1288.429568]  ? lock_acquire+0x10f/0x380
[ 1288.433642]  ? __mutex_lock+0x2c1/0x1430
[ 1288.437712]  schedule+0x92/0x1c0
[ 1288.441119]  schedule_preempt_disabled+0x13/0x20
[ 1288.445881]  __mutex_lock+0x559/0x1430
[ 1288.449776]  ? __mutex_lock+0x6aa/0x1430
[ 1288.453898]  ? __mutex_unlock_slowpath+0x9a/0x7d0
[ 1288.458742]  ? lo_open+0x19/0xb0
[ 1288.462152]  ? __ww_mutex_wakeup_for_backoff+0x210/0x210
[ 1288.467601]  ? __ww_mutex_wakeup_for_backoff+0x210/0x210
[ 1288.473140]  ? kobject_get_unless_zero+0x27/0x40
[ 1288.477941]  ? lock_downgrade+0x5d0/0x5d0
[ 1288.482255]  ? refcount_inc_not_zero+0x81/0xe0
[ 1288.486851]  ? check_preemption_disabled+0x35/0x1f0
[ 1288.491936]  ? loop_unregister_transfer+0x90/0x90
[ 1288.496781]  ? lo_open+0x19/0xb0
[ 1288.500188]  lo_open+0x19/0xb0
[ 1288.503449]  __blkdev_get+0x267/0xf90
[ 1288.507266]  ? __blkdev_put+0x6d0/0x6d0
[ 1288.511302]  ? fsnotify+0x8b0/0x1150
[ 1288.515013]  blkdev_get+0x97/0x8b0
[ 1288.518540]  ? bd_acquire+0x171/0x2c0
[ 1288.522396]  ? bd_may_claim+0xd0/0xd0
[ 1288.526248]  ? lock_downgrade+0x5d0/0x5d0
[ 1288.530441]  ? lock_acquire+0x10f/0x380
[ 1288.534461]  ? bd_acquire+0x21/0x2c0
[ 1288.538169]  blkdev_open+0x1cc/0x250
[ 1288.541937]  ? security_file_open+0x88/0x190
[ 1288.546525]  do_dentry_open+0x44e/0xdf0
[ 1288.550973]  ? bd_acquire+0x2c0/0x2c0
[ 1288.555397]  vfs_open+0x105/0x230
[ 1288.558847]  path_openat+0xb6b/0x2b70
[ 1288.562703]  ? path_mountpoint+0x9a0/0x9a0
[ 1288.566942]  ? trace_hardirqs_on+0x10/0x10
[ 1288.571234]  do_filp_open+0x1a1/0x280
[ 1288.575040]  ? may_open_dev+0xe0/0xe0
[ 1288.578827]  ? lock_downgrade+0x5d0/0x5d0
[ 1288.583015]  ? lock_acquire+0x10f/0x380
[ 1288.586986]  ? __alloc_fd+0x3f/0x490
[ 1288.590732]  ? _raw_spin_unlock+0x29/0x40
[ 1288.594874]  ? __alloc_fd+0x1bf/0x490
[ 1288.598662]  do_sys_open+0x2ca/0x590
[ 1288.602424]  ? filp_open+0x60/0x60
[ 1288.605963]  ? SyS_mkdirat+0x146/0x220
[ 1288.609834]  ? do_syscall_64+0x43/0x4b0
[ 1288.613888]  ? do_sys_open+0x590/0x590
[ 1288.617820]  do_syscall_64+0x19b/0x4b0
[ 1288.621794]  ? entry_SYSCALL_64_after_hwframe+0x42/0xb7
[ 1288.627168] INFO: task syz-executor.5:1973 blocked for more than 140 seconds.
[ 1288.634509]       Not tainted 4.14.112+ #57
[ 1288.638831] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[ 1288.646948] syz-executor.5  D25640  1973      1 0x00000004
[ 1288.652614] Call Trace:
[ 1288.655187]  ? __schedule+0x91c/0x1f30
[ 1288.659063]  ? __sched_text_start+0x8/0x8
[ 1288.663301]  ? lock_downgrade+0x5d0/0x5d0
[ 1288.667490]  ? lock_acquire+0x10f/0x380
[ 1288.671513]  ? __mutex_lock+0x2c1/0x1430
[ 1288.675583]  schedule+0x92/0x1c0
[ 1288.678927]  schedule_preempt_disabled+0x13/0x20
[ 1288.684151]  __mutex_lock+0x559/0x1430
[ 1288.688029]  ? __mutex_lock+0x6aa/0x1430
[ 1288.692114]  ? __mutex_unlock_slowpath+0x9a/0x7d0
[ 1288.696950]  ? lo_open+0x19/0xb0
[ 1288.700348]  ? __ww_mutex_wakeup_for_backoff+0x210/0x210
[ 1288.705800]  ? __ww_mutex_wakeup_for_backoff+0x210/0x210
[ 1288.711332]  ? kobject_get_unless_zero+0x27/0x40
[ 1288.716142]  ? lock_downgrade+0x5d0/0x5d0
[ 1288.720339]  ? refcount_inc_not_zero+0x81/0xe0
[ 1288.724925]  ? check_preemption_disabled+0x35/0x1f0
[ 1288.730089]  ? loop_unregister_transfer+0x90/0x90
[ 1288.734954]  ? lo_open+0x19/0xb0
[ 1288.738314]  lo_open+0x19/0xb0
[ 1288.741562]  __blkdev_get+0x267/0xf90
[ 1288.745369]  ? __blkdev_put+0x6d0/0x6d0
[ 1288.749324]  ? fsnotify+0x8b0/0x1150
[ 1288.753072]  blkdev_get+0x97/0x8b0
[ 1288.756611]  ? bd_acquire+0x171/0x2c0
[ 1288.760457]  ? bd_may_claim+0xd0/0xd0
[ 1288.764268]  ? lock_downgrade+0x5d0/0x5d0
[ 1288.768398]  ? lock_acquire+0x10f/0x380
[ 1288.772423]  ? bd_acquire+0x21/0x2c0
[ 1288.776140]  blkdev_open+0x1cc/0x250
[ 1288.779832]  ? security_file_open+0x88/0x190
[ 1288.784320]  do_dentry_open+0x44e/0xdf0
[ 1288.788312]  ? bd_acquire+0x2c0/0x2c0
[ 1288.792148]  vfs_open+0x105/0x230
[ 1288.795601]  path_openat+0xb6b/0x2b70
[ 1288.799382]  ? path_mountpoint+0x9a0/0x9a0
[ 1288.803661]  ? trace_hardirqs_on+0x10/0x10
[ 1288.807902]  do_filp_open+0x1a1/0x280
[ 1288.812196]  ? may_open_dev+0xe0/0xe0
[ 1288.816042]  ? lock_downgrade+0x5d0/0x5d0
[ 1288.820233]  ? lock_acquire+0x10f/0x380
[ 1288.824247]  ? __alloc_fd+0x3f/0x490
[ 1288.827950]  ? _raw_spin_unlock+0x29/0x40
[ 1288.832195]  ? __alloc_fd+0x1bf/0x490
[ 1288.836003]  do_sys_open+0x2ca/0x590
[ 1288.839698]  ? filp_open+0x60/0x60
[ 1288.843265]  ? SyS_mkdirat+0x146/0x220
[ 1288.847157]  ? do_syscall_64+0x43/0x4b0
[ 1288.851172]  ? do_sys_open+0x590/0x590
[ 1288.855067]  do_syscall_64+0x19b/0x4b0
[ 1288.858944]  ? entry_SYSCALL_64_after_hwframe+0x42/0xb7
[ 1288.864385] INFO: task syz-executor.0:1974 blocked for more than 140 seconds.
[ 1288.871688]       Not tainted 4.14.112+ #57
[ 1288.875997] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[ 1288.884036] syz-executor.0  D25160  1974      1 0x00000004
[ 1288.889667] Call Trace:
[ 1288.892290]  ? __schedule+0x91c/0x1f30
[ 1288.896179]  ? __sched_text_start+0x8/0x8
[ 1288.900353]  ? lock_downgrade+0x5d0/0x5d0
[ 1288.904502]  ? lock_acquire+0x10f/0x380
[ 1288.908484]  ? __mutex_lock+0x2c1/0x1430
[ 1288.912997]  schedule+0x92/0x1c0
[ 1288.916358]  schedule_preempt_disabled+0x13/0x20
[ 1288.921142]  __mutex_lock+0x559/0x1430
[ 1288.925023]  ? __mutex_unlock_slowpath+0x9a/0x7d0
[ 1288.929851]  ? trace_hardirqs_on+0x10/0x10
[ 1288.934175]  ? __blkdev_get+0xf3/0xf90
[ 1288.938067]  ? refcount_inc_not_zero+0x81/0xe0
[ 1288.943098]  ? __ww_mutex_wakeup_for_backoff+0x210/0x210
[ 1288.948547]  ? kobject_get_unless_zero+0x27/0x40
[ 1288.953363]  ? get_disk+0xd0/0xd0
[ 1288.956820]  ? exact_match+0x9/0x20
[ 1288.960495]  ? kobj_lookup+0x325/0x410
[ 1288.964390]  ? blkdev_ioctl+0x1810/0x1810
[ 1288.968701]  ? __blkdev_get+0xf3/0xf90
[ 1288.972732]  __blkdev_get+0xf3/0xf90
[ 1288.976448]  ? __blkdev_put+0x6d0/0x6d0
[ 1288.980457]  ? fsnotify+0x8b0/0x1150
[ 1288.984167]  blkdev_get+0x97/0x8b0
[ 1288.987686]  ? bd_acquire+0x171/0x2c0
[ 1288.991506]  ? bd_may_claim+0xd0/0xd0
[ 1288.995515]  ? lock_downgrade+0x5d0/0x5d0
[ 1288.999654]  ? lock_acquire+0x10f/0x380
[ 1289.003673]  ? bd_acquire+0x21/0x2c0
[ 1289.007432]  blkdev_open+0x1cc/0x250
[ 1289.011187]  ? security_file_open+0x88/0x190
[ 1289.015597]  do_dentry_open+0x44e/0xdf0
[ 1289.019592]  ? bd_acquire+0x2c0/0x2c0
[ 1289.023468]  vfs_open+0x105/0x230
[ 1289.026927]  path_openat+0xb6b/0x2b70
[ 1289.030824]  ? path_mountpoint+0x9a0/0x9a0
[ 1289.035064]  ? trace_hardirqs_on+0x10/0x10
[ 1289.039284]  do_filp_open+0x1a1/0x280
[ 1289.043115]  ? may_open_dev+0xe0/0xe0
[ 1289.046966]  ? lock_downgrade+0x5d0/0x5d0
[ 1289.051210]  ? lock_acquire+0x10f/0x380
[ 1289.055188]  ? __alloc_fd+0x3f/0x490
[ 1289.058886]  ? _raw_spin_unlock+0x29/0x40
[ 1289.063095]  ? __alloc_fd+0x1bf/0x490
[ 1289.067247]  do_sys_open+0x2ca/0x590
[ 1289.071451]  ? filp_open+0x60/0x60
[ 1289.074989]  ? SyS_mkdirat+0x146/0x220
[ 1289.078861]  ? do_syscall_64+0x43/0x4b0
[ 1289.082908]  ? do_sys_open+0x590/0x590
[ 1289.086839]  do_syscall_64+0x19b/0x4b0
[ 1289.090773]  ? entry_SYSCALL_64_after_hwframe+0x42/0xb7
[ 1289.096184] INFO: task syz-executor.1:1976 blocked for more than 140 seconds.
[ 1289.103499]       Not tainted 4.14.112+ #57
[ 1289.107816] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[ 1289.115911] syz-executor.1  D25152  1976      1 0x00000004
[ 1289.121587] Call Trace:
[ 1289.124226]  ? __schedule+0x91c/0x1f30
[ 1289.128110]  ? __sched_text_start+0x8/0x8
[ 1289.132305]  ? lock_downgrade+0x5d0/0x5d0
[ 1289.136456]  ? lock_acquire+0x10f/0x380
[ 1289.140472]  ? __mutex_lock+0x2c1/0x1430
[ 1289.144569]  schedule+0x92/0x1c0
[ 1289.147919]  schedule_preempt_disabled+0x13/0x20
[ 1289.152769]  __mutex_lock+0x559/0x1430
[ 1289.156657]  ? __mutex_lock+0x6aa/0x1430
[ 1289.160856]  ? __mutex_unlock_slowpath+0x9a/0x7d0
[ 1289.165700]  ? lo_open+0x19/0xb0
[ 1289.169057]  ? __ww_mutex_wakeup_for_backoff+0x210/0x210
[ 1289.174557]  ? __ww_mutex_wakeup_for_backoff+0x210/0x210
[ 1289.180059]  ? kobject_get_unless_zero+0x27/0x40
[ 1289.184862]  ? lock_downgrade+0x5d0/0x5d0
[ 1289.188996]  ? refcount_inc_not_zero+0x81/0xe0
[ 1289.193643]  ? check_preemption_disabled+0x35/0x1f0
[ 1289.198719]  ? loop_unregister_transfer+0x90/0x90
[ 1289.204034]  ? lo_open+0x19/0xb0
[ 1289.207485]  lo_open+0x19/0xb0
[ 1289.210725]  __blkdev_get+0x267/0xf90
[ 1289.214640]  ? __blkdev_put+0x6d0/0x6d0
[ 1289.218674]  ? fsnotify+0x8b0/0x1150
[ 1289.222458]  blkdev_get+0x97/0x8b0
[ 1289.226002]  ? bd_acquire+0x171/0x2c0
[ 1289.229823]  ? bd_may_claim+0xd0/0xd0
[ 1289.233679]  ? lock_downgrade+0x5d0/0x5d0
[ 1289.237825]  ? lock_acquire+0x10f/0x380
[ 1289.241930]  ? bd_acquire+0x21/0x2c0
[ 1289.245705]  blkdev_open+0x1cc/0x250
[ 1289.249412]  ? security_file_open+0x88/0x190
[ 1289.253930]  do_dentry_open+0x44e/0xdf0
[ 1289.257910]  ? bd_acquire+0x2c0/0x2c0
[ 1289.261793]  vfs_open+0x105/0x230
[ 1289.265251]  path_openat+0xb6b/0x2b70
[ 1289.269046]  ? path_mountpoint+0x9a0/0x9a0
[ 1289.273330]  ? trace_hardirqs_on+0x10/0x10
[ 1289.277574]  do_filp_open+0x1a1/0x280
[ 1289.281431]  ? may_open_dev+0xe0/0xe0
[ 1289.285239]  ? lock_downgrade+0x5d0/0x5d0
[ 1289.289368]  ? lock_acquire+0x10f/0x380
[ 1289.293380]  ? __alloc_fd+0x3f/0x490
[ 1289.297101]  ? _raw_spin_unlock+0x29/0x40
[ 1289.301337]  ? __alloc_fd+0x1bf/0x490
[ 1289.305150]  do_sys_open+0x2ca/0x590
[ 1289.308841]  ? filp_open+0x60/0x60
[ 1289.312421]  ? SyS_mkdirat+0x146/0x220
[ 1289.316329]  ? do_syscall_64+0x43/0x4b0
[ 1289.320355]  ? do_sys_open+0x590/0x590
[ 1289.324248]  do_syscall_64+0x19b/0x4b0
[ 1289.328122]  ? entry_SYSCALL_64_after_hwframe+0x42/0xb7
[ 1289.333987] INFO: task blkid:2733 blocked for more than 140 seconds.
[ 1289.340515]       Not tainted 4.14.112+ #57
[ 1289.344972] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[ 1289.353008] blkid           D28808  2733    304 0x00000004
[ 1289.358634] Call Trace:
[ 1289.361308]  ? __schedule+0x91c/0x1f30
[ 1289.365198]  ? __sched_text_start+0x8/0x8
[ 1289.369383]  ? lock_downgrade+0x5d0/0x5d0
[ 1289.373599]  schedule+0x92/0x1c0
[ 1289.377023]  schedule_preempt_disabled+0x13/0x20
[ 1289.381839]  __mutex_lock+0x559/0x1430
[ 1289.385736]  ? trace_hardirqs_on+0x10/0x10
[ 1289.389957]  ? lo_release+0x78/0x190
[ 1289.393722]  ? __ww_mutex_wakeup_for_backoff+0x210/0x210
[ 1289.399177]  ? lock_downgrade+0x5d0/0x5d0
[ 1289.403380]  ? lock_acquire+0x10f/0x380
[ 1289.407366]  ? __blkdev_put+0x1cb/0x6d0
[ 1289.411394]  ? lo_compat_ioctl+0x130/0x130
[ 1289.415670]  ? lo_release+0x78/0x190
[ 1289.419369]  lo_release+0x78/0x190
[ 1289.422954]  ? lo_compat_ioctl+0x130/0x130
[ 1289.427187]  __blkdev_put+0x518/0x6d0
[ 1289.431045]  ? bd_set_size+0xb0/0xb0
[ 1289.434761]  ? blkdev_put+0x75/0x4c0
[ 1289.438461]  ? blkdev_put+0x4c0/0x4c0
[ 1289.442301]  blkdev_close+0x86/0xb0
[ 1289.445993]  __fput+0x25e/0x700
[ 1289.449264]  task_work_run+0x118/0x190
[ 1289.453245]  exit_to_usermode_loop+0x13b/0x160
[ 1289.457846]  do_syscall_64+0x372/0x4b0
[ 1289.462185]  ? entry_SYSCALL_64_after_hwframe+0x42/0xb7
[ 1289.467556] INFO: task syz-executor.2:2734 blocked for more than 140 seconds.
[ 1289.474918]       Not tainted 4.14.112+ #57
[ 1289.479237] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[ 1289.487228] syz-executor.2  D28560  2734   1962 0x00000004
[ 1289.492883] Call Trace:
[ 1289.495461]  ? __schedule+0x91c/0x1f30
[ 1289.499341]  ? __sched_text_start+0x8/0x8
[ 1289.503653]  ? lock_downgrade+0x5d0/0x5d0
[ 1289.507828]  ? lock_acquire+0x10f/0x380
[ 1289.511933]  ? __mutex_lock+0x2c1/0x1430
[ 1289.516021]  schedule+0x92/0x1c0
[ 1289.519365]  schedule_preempt_disabled+0x13/0x20
[ 1289.524156]  __mutex_lock+0x559/0x1430
[ 1289.528048]  ? blkdev_reread_part+0x1b/0x40
[ 1289.532403]  ? mark_held_locks+0x70/0xf0
[ 1289.536473]  ? __ww_mutex_wakeup_for_backoff+0x210/0x210
[ 1289.541971]  ? _raw_spin_unlock_irqrestore+0x41/0x70
[ 1289.547076]  ? __wake_up_common_lock+0xe0/0x170
[ 1289.551799]  ? blkdev_reread_part+0x1b/0x40
[ 1289.556121]  blkdev_reread_part+0x1b/0x40
[ 1289.560308]  loop_reread_partitions+0x72/0x80
[ 1289.564809]  loop_set_status+0xbff/0x11f0
[ 1289.568949]  ? loop_set_status64+0xa5/0x100
[ 1289.573324]  ? loop_set_status_old+0x2f0/0x2f0
[ 1289.578272]  ? security_capable+0x8e/0xc0
[ 1289.582486]  ? lo_ioctl+0x50b/0x1970
[ 1289.586204]  ? __lock_acquire+0x56a/0x3fa0
[ 1289.590910]  ? loop_clr_fd+0xac0/0xac0
[ 1289.595142]  ? blkdev_ioctl+0x4d9/0x1810
[ 1289.599187]  ? blkpg_ioctl+0x910/0x910
[ 1289.603133]  ? trace_hardirqs_on+0x10/0x10
[ 1289.607362]  ? kasan_slab_free+0x11a/0x190
[ 1289.611623]  ? kasan_slab_free+0xb0/0x190
[ 1289.615769]  ? kfree+0xf5/0x310
[ 1289.619036]  ? exit_robust_list+0x240/0x240
[ 1289.623425]  ? block_ioctl+0xd9/0x120
[ 1289.627223]  ? blkdev_fallocate+0x3b0/0x3b0
[ 1289.631602]  ? do_vfs_ioctl+0xabe/0x1040
[ 1289.635681]  ? selinux_file_ioctl+0x426/0x590
[ 1289.640205]  ? selinux_file_ioctl+0x116/0x590
[ 1289.644698]  ? ioctl_preallocate+0x1e0/0x1e0
[ 1289.649323]  ? selinux_parse_skb.constprop.0+0x16b0/0x16b0
[ 1289.655055]  ? __might_fault+0x177/0x1b0
[ 1289.659120]  ? _copy_to_user+0x82/0xd0
[ 1289.663039]  ? nsecs_to_jiffies+0x30/0x30
[ 1289.667189]  ? security_file_ioctl+0x7c/0xb0
[ 1289.671622]  ? SyS_ioctl+0x7f/0xb0
[ 1289.675155]  ? do_vfs_ioctl+0x1040/0x1040
[ 1289.679293]  ? do_syscall_64+0x19b/0x4b0
[ 1289.683408]  ? entry_SYSCALL_64_after_hwframe+0x42/0xb7
[ 1289.688783] INFO: task blkid:2740 blocked for more than 140 seconds.
[ 1289.695301]       Not tainted 4.14.112+ #57
[ 1289.699611] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[ 1289.707614] blkid           D28848  2740    305 0x00000004
[ 1289.713284] Call Trace:
[ 1289.715861]  ? __schedule+0x91c/0x1f30
[ 1289.719745]  ? __sched_text_start+0x8/0x8
[ 1289.724432]  ? lock_downgrade+0x5d0/0x5d0
[ 1289.728580]  ? lock_acquire+0x10f/0x380
[ 1289.732679]  ? __mutex_lock+0x2c1/0x1430
[ 1289.736745]  schedule+0x92/0x1c0
[ 1289.740239]  schedule_preempt_disabled+0x13/0x20
[ 1289.745051]  __mutex_lock+0x559/0x1430
[ 1289.748963]  ? __mutex_lock+0x6aa/0x1430
[ 1289.753063]  ? __mutex_unlock_slowpath+0x9a/0x7d0
[ 1289.757917]  ? lo_open+0x19/0xb0
[ 1289.761331]  ? __ww_mutex_wakeup_for_backoff+0x210/0x210
[ 1289.766781]  ? __ww_mutex_wakeup_for_backoff+0x210/0x210
[ 1289.772279]  ? kobject_get_unless_zero+0x27/0x40
[ 1289.777106]  ? get_disk+0xd0/0xd0
[ 1289.780659]  ? exact_match+0x9/0x20
[ 1289.784351]  ? blkdev_ioctl+0x1810/0x1810
[ 1289.788491]  ? loop_unregister_transfer+0x90/0x90
[ 1289.794674]  ? lo_open+0x19/0xb0
[ 1289.798039]  lo_open+0x19/0xb0
[ 1289.801268]  __blkdev_get+0x963/0xf90
[ 1289.805073]  ? __blkdev_put+0x6d0/0x6d0
[ 1289.809036]  ? fsnotify+0x8b0/0x1150
[ 1289.812810]  blkdev_get+0x97/0x8b0
[ 1289.816409]  ? bd_acquire+0x171/0x2c0
[ 1289.820255]  ? bd_may_claim+0xd0/0xd0
[ 1289.824134]  ? lock_downgrade+0x5d0/0x5d0
[ 1289.828272]  ? lock_acquire+0x10f/0x380
[ 1289.832334]  ? bd_acquire+0x21/0x2c0
[ 1289.836060]  blkdev_open+0x1cc/0x250
[ 1289.839758]  ? security_file_open+0x88/0x190
[ 1289.844317]  do_dentry_open+0x44e/0xdf0
[ 1289.848297]  ? bd_acquire+0x2c0/0x2c0
[ 1289.852580]  vfs_open+0x105/0x230
[ 1289.856027]  path_openat+0xb6b/0x2b70
[ 1289.859893]  ? path_mountpoint+0x9a0/0x9a0
[ 1289.864183]  ? trace_hardirqs_on+0x10/0x10
[ 1289.868465]  do_filp_open+0x1a1/0x280
[ 1289.872314]  ? may_open_dev+0xe0/0xe0
[ 1289.876127]  ? lock_downgrade+0x5d0/0x5d0
[ 1289.880387]  ? lock_acquire+0x10f/0x380
[ 1289.884365]  ? __alloc_fd+0x3f/0x490
[ 1289.888071]  ? _raw_spin_unlock+0x29/0x40
[ 1289.892255]  ? __alloc_fd+0x1bf/0x490
[ 1289.896057]  do_sys_open+0x2ca/0x590
[ 1289.899753]  ? filp_open+0x60/0x60
[ 1289.903536]  ? do_syscall_64+0x43/0x4b0
[ 1289.907511]  ? do_sys_open+0x590/0x590
[ 1289.911441]  do_syscall_64+0x19b/0x4b0
[ 1289.915333]  ? entry_SYSCALL_64_after_hwframe+0x42/0xb7
[ 1289.920814] 
[ 1289.920814] Showing all locks held in the system:
[ 1289.927145] 1 lock held by khungtaskd/23:
[ 1289.931550]  #0:  (tasklist_lock){.+.+}, at: [<        (ptrval)>] debug_show_all_locks+0x7c/0x21a
[ 1289.940622] 1 lock held by rsyslogd/1630:
[ 1289.944747]  #0:  (&f->f_pos_lock){+.+.}, at: [<        (ptrval)>] __fdget_pos+0xa6/0xc0
[ 1289.953032] 2 locks held by getty/1758:
[ 1289.957095]  #0:  (&tty->ldisc_sem){++++}, at: [<        (ptrval)>] tty_ldisc_ref_wait+0x22/0x80
[ 1289.966076]  #1:  (&ldata->atomic_read_lock){+.+.}, at: [<        (ptrval)>] n_tty_read+0x1f7/0x1700
[ 1289.975412] 2 locks held by syz-executor.3/1965:
[ 1289.980219]  #0:  (&bdev->bd_mutex){+.+.}, at: [<        (ptrval)>] __blkdev_get+0xf3/0xf90
[ 1289.988790]  #1:  (loop_index_mutex){+.+.}, at: [<        (ptrval)>] lo_open+0x19/0xb0
[ 1289.996921] 2 locks held by syz-executor.4/1968:
[ 1290.001770]  #0:  (&bdev->bd_mutex){+.+.}, at: [<        (ptrval)>] __blkdev_get+0xf3/0xf90
[ 1290.010346]  #1:  (loop_index_mutex){+.+.}, at: [<        (ptrval)>] lo_open+0x19/0xb0
[ 1290.018497] 2 locks held by syz-executor.5/1973:
[ 1290.023297]  #0:  (&bdev->bd_mutex){+.+.}, at: [<        (ptrval)>] __blkdev_get+0xf3/0xf90
[ 1290.031854]  #1:  (loop_index_mutex){+.+.}, at: [<        (ptrval)>] lo_open+0x19/0xb0
[ 1290.039931] 1 lock held by syz-executor.0/1974:
[ 1290.044638]  #0:  (&bdev->bd_mutex){+.+.}, at: [<        (ptrval)>] __blkdev_get+0xf3/0xf90
[ 1290.053189] 2 locks held by syz-executor.1/1976:
[ 1290.057940]  #0:  (&bdev->bd_mutex){+.+.}, at: [<        (ptrval)>] __blkdev_get+0xf3/0xf90
[ 1290.066485]  #1:  (loop_index_mutex){+.+.}, at: [<        (ptrval)>] lo_open+0x19/0xb0
[ 1290.074616] 3 locks held by blkid/2733:
[ 1290.078580]  #0:  (&bdev->bd_mutex){+.+.}, at: [<        (ptrval)>] __blkdev_put+0xb1/0x6d0
[ 1290.087185]  #1:  (loop_index_mutex){+.+.}, at: [<        (ptrval)>] lo_release+0x19/0x190
[ 1290.096235]  #2:  (loop_ctl_mutex#2){+.+.}, at: [<        (ptrval)>] lo_release+0x78/0x190
[ 1290.104730] 2 locks held by syz-executor.2/2734:
[ 1290.109477]  #0:  (loop_ctl_mutex/1){+.+.}, at: [<        (ptrval)>] lo_ioctl+0x83/0x1970
[ 1290.117847]  #1:  (&bdev->bd_mutex){+.+.}, at: [<        (ptrval)>] blkdev_reread_part+0x1b/0x40
[ 1290.126830] 2 locks held by blkid/2740:
[ 1290.130923]  #0:  (&bdev->bd_mutex){+.+.}, at: [<        (ptrval)>] __blkdev_get+0xf3/0xf90
[ 1290.139508]  #1:  (loop_index_mutex){+.+.}, at: [<        (ptrval)>] lo_open+0x19/0xb0
[ 1290.147622] 
[ 1290.149249] =============================================
[ 1290.149249] 
[ 1290.156489] NMI backtrace for cpu 0
[ 1290.160159] CPU: 0 PID: 23 Comm: khungtaskd Not tainted 4.14.112+ #57
[ 1290.166723] Call Trace:
[ 1290.169302]  dump_stack+0xb9/0x10e
[ 1290.172831]  ? irq_force_complete_move.cold+0x2c/0x7b
[ 1290.178000]  nmi_cpu_backtrace.cold+0x47/0x86
[ 1290.182479]  ? irq_force_complete_move.cold+0x7b/0x7b
[ 1290.187657]  ? nmi_trigger_cpumask_backtrace+0x119/0x147
[ 1290.193095]  ? watchdog+0x5d3/0xb60
[ 1290.196844]  ? reset_hung_task_detector+0x10/0x10
[ 1290.201679]  ? kthread+0x310/0x420
[ 1290.205303]  ? kthread_create_on_node+0xf0/0xf0
[ 1290.209962]  ? ret_from_fork+0x3a/0x50
[ 1290.213945] Sending NMI from CPU 0 to CPUs 1:
[ 1290.218504] NMI backtrace for cpu 1 skipped: idling at pc 0xffffffffaca4a942
[ 1290.219458] Kernel panic - not syncing: hung_task: blocked tasks
[ 1290.231827] CPU: 0 PID: 23 Comm: khungtaskd Not tainted 4.14.112+ #57
[ 1290.238395] Call Trace:
[ 1290.240971]  dump_stack+0xb9/0x10e
[ 1290.244503]  panic+0x1d9/0x3c2
[ 1290.247676]  ? add_taint.cold+0x16/0x16
[ 1290.251632]  ? irq_force_complete_move.cold+0x7b/0x7b
[ 1290.256799]  ? ___preempt_schedule+0x16/0x18
[ 1290.261319]  watchdog+0x5e4/0xb60
[ 1290.264803]  ? reset_hung_task_detector+0x10/0x10
[ 1290.269637]  kthread+0x310/0x420
[ 1290.272987]  ? kthread_create_on_node+0xf0/0xf0
[ 1290.277686]  ret_from_fork+0x3a/0x50
[ 1290.281776] Kernel Offset: 0x2a200000 from 0xffffffff81000000 (relocation range: 0xffffffff80000000-0xffffffffbfffffff)
[ 1290.292688] Rebooting in 86400 seconds..