INFO: task syz-executor387:5834 blocked for more than 143 seconds.
Not tainted 6.14.0-rc5-syzkaller-00214-g21e4543a2e2f #0
Blocked by coredump.
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor387 state:D stack:27824 pid:5834 tgid:5828 ppid:5825 task_flags:0x40044c flags:0x00004002
Call Trace:
context_switch kernel/sched/core.c:5378 [inline]
__schedule+0xf43/0x5890 kernel/sched/core.c:6765
__schedule_loop kernel/sched/core.c:6842 [inline]
schedule+0xe7/0x350 kernel/sched/core.c:6857
schedule_timeout+0x244/0x280 kernel/time/sleep_timeout.c:75
do_wait_for_common kernel/sched/completion.c:95 [inline]
__wait_for_common+0x3e1/0x600 kernel/sched/completion.c:116
__flush_work+0x7d8/0xcd0 kernel/workqueue.c:4244
__cancel_work_sync+0x10c/0x130 kernel/workqueue.c:4364
uhid_dev_destroy drivers/hid/uhid.c:584 [inline]
uhid_char_release+0xc4/0x210 drivers/hid/uhid.c:662
__fput+0x3ff/0xb70 fs/file_table.c:464
task_work_run+0x14e/0x250 kernel/task_work.c:227
exit_task_work include/linux/task_work.h:40 [inline]
do_exit+0xad8/0x2d70 kernel/exit.c:938
do_group_exit+0xd3/0x2a0 kernel/exit.c:1087
get_signal+0x24ed/0x26c0 kernel/signal.c:3036
arch_do_signal_or_restart+0x90/0x7e0 arch/x86/kernel/signal.c:337
exit_to_user_mode_loop kernel/entry/common.c:111 [inline]
exit_to_user_mode_prepare include/linux/entry-common.h:329 [inline]
__syscall_exit_to_user_mode_work kernel/entry/common.c:207 [inline]
syscall_exit_to_user_mode+0x150/0x2a0 kernel/entry/common.c:218
do_syscall_64+0xda/0x250 arch/x86/entry/common.c:89
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fd0370716d9
RSP: 002b:00007fd03702c218 EFLAGS: 00000246
ORIG_RAX: 00000000000000ca
RAX: 0000000000000001 RBX: 00007fd0370fb308 RCX: 00007fd0370716d9
RDX: 00000000000f4240 RSI: 0000000000000081 RDI: 00007fd0370fb30c
RBP: 00007fd0370fb300 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000400000002b44
R13: 0000400000001b00 R14: 0000400000002b40 R15: 6968752f7665642f
INFO: task syz-executor387:5829 blocked for more than 145 seconds.
Not tainted 6.14.0-rc5-syzkaller-00214-g21e4543a2e2f #0
Blocked by coredump.
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor387 state:D
stack:27360 pid:5829 tgid:5829 ppid:5827 task_flags:0x40004c flags:0x00004002
Call Trace:
context_switch kernel/sched/core.c:5378 [inline]
__schedule+0xf43/0x5890 kernel/sched/core.c:6765
__schedule_loop kernel/sched/core.c:6842 [inline]
schedule+0xe7/0x350 kernel/sched/core.c:6857
schedule_timeout+0x244/0x280 kernel/time/sleep_timeout.c:75
do_wait_for_common kernel/sched/completion.c:95 [inline]
__wait_for_common+0x3e1/0x600 kernel/sched/completion.c:116
__flush_work+0x7d8/0xcd0 kernel/workqueue.c:4244
__cancel_work_sync+0x10c/0x130 kernel/workqueue.c:4364
uhid_dev_destroy drivers/hid/uhid.c:584 [inline]
uhid_char_release+0xc4/0x210 drivers/hid/uhid.c:662
__fput+0x3ff/0xb70 fs/file_table.c:464
task_work_run+0x14e/0x250 kernel/task_work.c:227
exit_task_work include/linux/task_work.h:40 [inline]
do_exit+0xad8/0x2d70 kernel/exit.c:938
do_group_exit+0xd3/0x2a0 kernel/exit.c:1087
__do_sys_exit_group kernel/exit.c:1098 [inline]
__se_sys_exit_group kernel/exit.c:1096 [inline]
__x64_sys_exit_group+0x3e/0x50 kernel/exit.c:1096
x64_sys_call+0x151f/0x1720 arch/x86/include/generated/asm/syscalls_64.h:232
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0xcd/0x250 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fd03706f739
RSP: 002b:00007ffce1a94c38 EFLAGS: 00000246
ORIG_RAX: 00000000000000e7
RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fd03706f739
RDX: 000000000000003c RSI: 00000000000000e7 RDI: 0000000000000000
RBP: 00007fd0370fb2b0 R08: ffffffffffffffb0 R09: 00007ffce1a94e70
R10: 00007ffce1a94cd0 R11: 0000000000000246 R12: 00007fd0370fb2b0
R13: 0000000000000000 R14: 00007fd0370fbe40 R15: 00007fd03703d4b0
INFO: task syz-executor387:5837 blocked for more than 146 seconds.
Not tainted 6.14.0-rc5-syzkaller-00214-g21e4543a2e2f #0
Blocked by coredump.
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor387 state:D stack:27360 pid:5837 tgid:5837 ppid:5820 task_flags:0x40004c flags:0x00004002
Call Trace:
context_switch kernel/sched/core.c:5378 [inline]
__schedule+0xf43/0x5890 kernel/sched/core.c:6765
__schedule_loop kernel/sched/core.c:6842 [inline]
schedule+0xe7/0x350 kernel/sched/core.c:6857
schedule_timeout+0x244/0x280 kernel/time/sleep_timeout.c:75
do_wait_for_common kernel/sched/completion.c:95 [inline]
__wait_for_common+0x3e1/0x600 kernel/sched/completion.c:116
__flush_work+0x7d8/0xcd0 kernel/workqueue.c:4244
__cancel_work_sync+0x10c/0x130 kernel/workqueue.c:4364
uhid_dev_destroy drivers/hid/uhid.c:584 [inline]
uhid_char_release+0xc4/0x210 drivers/hid/uhid.c:662
__fput+0x3ff/0xb70 fs/file_table.c:464
task_work_run+0x14e/0x250 kernel/task_work.c:227
exit_task_work include/linux/task_work.h:40 [inline]
do_exit+0xad8/0x2d70 kernel/exit.c:938
do_group_exit+0xd3/0x2a0 kernel/exit.c:1087
__do_sys_exit_group kernel/exit.c:1098 [inline]
__se_sys_exit_group kernel/exit.c:1096 [inline]
__x64_sys_exit_group+0x3e/0x50 kernel/exit.c:1096
x64_sys_call+0x151f/0x1720 arch/x86/include/generated/asm/syscalls_64.h:232
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0xcd/0x250 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fd03706f739
RSP: 002b:00007ffce1a94c38 EFLAGS: 00000246
ORIG_RAX: 00000000000000e7
RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fd03706f739
RDX: 000000000000003c RSI: 00000000000000e7 RDI: 0000000000000000
RBP: 00007fd0370fb2b0 R08: ffffffffffffffb0 R09: 00007ffce1a94e70
R10: 00007ffce1a94cd0 R11: 0000000000000246 R12: 00007fd0370fb2b0
R13: 0000000000000000 R14: 00007fd0370fbe40 R15: 00007fd03703d4b0
INFO: task udevd:5840 blocked for more than 148 seconds.
Not tainted 6.14.0-rc5-syzkaller-00214-g21e4543a2e2f #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:udevd state:D
stack:27936 pid:5840 tgid:5840 ppid:5194 task_flags:0x400040 flags:0x00000002
Call Trace:
context_switch kernel/sched/core.c:5378 [inline]
__schedule+0xf43/0x5890 kernel/sched/core.c:6765
__schedule_loop kernel/sched/core.c:6842 [inline]
schedule+0xe7/0x350 kernel/sched/core.c:6857
schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6914
__mutex_lock_common kernel/locking/mutex.c:662 [inline]
__mutex_lock+0x6bd/0xb10 kernel/locking/mutex.c:730
device_lock include/linux/device.h:1030 [inline]
uevent_show+0x188/0x3b0 drivers/base/core.c:2729
dev_attr_show+0x53/0xe0 drivers/base/core.c:2423
sysfs_kf_seq_show+0x23e/0x410 fs/sysfs/file.c:59
seq_read_iter+0x4f4/0x12b0 fs/seq_file.c:230
kernfs_fop_read_iter+0x414/0x580 fs/kernfs/file.c:279
new_sync_read fs/read_write.c:484 [inline]
vfs_read+0x886/0xbf0 fs/read_write.c:565
ksys_read+0x12b/0x250 fs/read_write.c:708
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0xcd/0x250 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f45a7d16b6a
RSP: 002b:00007ffcab8c9d48 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
RAX: ffffffffffffffda RBX: 00005580069f35e0 RCX: 00007f45a7d16b6a
RDX: 0000000000001000 RSI: 00005580069f5950 RDI: 0000000000000008
RBP: 00005580069f35e0 R08: 0000000000000008 R09: 0000000000000400
R10: 000000000000010f R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000003fff R14: 00007ffcab8ca228 R15: 000000000000000a
INFO: task udevd:5843 blocked for more than 149 seconds.
Not tainted 6.14.0-rc5-syzkaller-00214-g21e4543a2e2f #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:udevd state:D
stack:27760 pid:5843 tgid:5843 ppid:5194 task_flags:0x400040 flags:0x00000002
Call Trace:
context_switch kernel/sched/core.c:5378 [inline]
__schedule+0xf43/0x5890 kernel/sched/core.c:6765
__schedule_loop kernel/sched/core.c:6842 [inline]
schedule+0xe7/0x350 kernel/sched/core.c:6857
schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6914
__mutex_lock_common kernel/locking/mutex.c:662 [inline]
__mutex_lock+0x6bd/0xb10 kernel/locking/mutex.c:730
device_lock include/linux/device.h:1030 [inline]
uevent_show+0x188/0x3b0 drivers/base/core.c:2729
dev_attr_show+0x53/0xe0 drivers/base/core.c:2423
sysfs_kf_seq_show+0x23e/0x410 fs/sysfs/file.c:59
seq_read_iter+0x4f4/0x12b0 fs/seq_file.c:230
kernfs_fop_read_iter+0x414/0x580 fs/kernfs/file.c:279
new_sync_read fs/read_write.c:484 [inline]
vfs_read+0x886/0xbf0 fs/read_write.c:565
ksys_read+0x12b/0x250 fs/read_write.c:708
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0xcd/0x250 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f45a7d16b6a
RSP: 002b:00007ffcab8c9d48 EFLAGS: 00000246
ORIG_RAX: 0000000000000000
RAX: ffffffffffffffda RBX: 00005580069f35e0 RCX: 00007f45a7d16b6a
RDX: 0000000000001000 RSI: 00005580069f37c0 RDI: 0000000000000008
RBP: 00005580069f35e0 R08: 0000000000000008 R09: 0000000000000400
R10: 000000000000010f R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000003fff R14: 00007ffcab8ca228 R15: 000000000000000a
INFO: task udevd:5847 blocked for more than 150 seconds.
Not tainted 6.14.0-rc5-syzkaller-00214-g21e4543a2e2f #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:udevd state:D
stack:27936 pid:5847 tgid:5847 ppid:5194 task_flags:0x400040 flags:0x00000002
Call Trace:
context_switch kernel/sched/core.c:5378 [inline]
__schedule+0xf43/0x5890 kernel/sched/core.c:6765
__schedule_loop kernel/sched/core.c:6842 [inline]
schedule+0xe7/0x350 kernel/sched/core.c:6857
schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6914
__mutex_lock_common kernel/locking/mutex.c:662 [inline]
__mutex_lock+0x6bd/0xb10 kernel/locking/mutex.c:730
device_lock include/linux/device.h:1030 [inline]
uevent_show+0x188/0x3b0 drivers/base/core.c:2729
dev_attr_show+0x53/0xe0 drivers/base/core.c:2423
sysfs_kf_seq_show+0x23e/0x410 fs/sysfs/file.c:59
seq_read_iter+0x4f4/0x12b0 fs/seq_file.c:230
kernfs_fop_read_iter+0x414/0x580 fs/kernfs/file.c:279
new_sync_read fs/read_write.c:484 [inline]
vfs_read+0x886/0xbf0 fs/read_write.c:565
ksys_read+0x12b/0x250 fs/read_write.c:708
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0xcd/0x250 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f45a7d16b6a
RSP: 002b:00007ffcab8c9d48 EFLAGS: 00000246
ORIG_RAX: 0000000000000000
RAX: ffffffffffffffda RBX: 00005580069f35e0 RCX: 00007f45a7d16b6a
RDX: 0000000000001000 RSI: 00005580069f37c0 RDI: 0000000000000008
RBP: 00005580069f35e0 R08: 0000000000000008 R09: 0000000000000400
R10: 000000000000010f R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000003fff R14: 00007ffcab8ca228 R15: 000000000000000a
Showing all locks held in the system:
3 locks held by kworker/0:0/9:
3 locks held by kworker/0:1/10:
1 lock held by khungtaskd/31:
#0:
ffffffff8e1bd0c0
(
rcu_read_lock
){....}-{1:3}
, at: rcu_lock_acquire include/linux/rcupdate.h:337 [inline]
, at: rcu_read_lock include/linux/rcupdate.h:849 [inline]
, at: debug_show_all_locks+0x7f/0x390 kernel/locking/lockdep.c:6746
5 locks held by kworker/u8:2/36:
3 locks held by kworker/1:1/45:
8 locks held by kworker/0:2/973:
4 locks held by udevd/5194:
#0:
ffff88807fe451c8
(
&p->lock
){+.+.}-{4:4}
, at: seq_read_iter+0xd8/0x12b0 fs/seq_file.c:182
#1: ffff888031a38888 (&of->mutex
#2){+.+.}-{4:4}, at: kernfs_seq_start+0x4d/0x240 fs/kernfs/file.c:154
#2:
ffff88803649f0f8
(
kn->active
#5
){++++}-{0:0}
, at: kernfs_seq_start+0x71/0x240 fs/kernfs/file.c:155
#3: ffff888056d1da20 (&dev->mutex){....}-{4:4}, at: device_lock include/linux/device.h:1030 [inline]
#3: ffff888056d1da20 (&dev->mutex){....}-{4:4}, at: uevent_show+0x188/0x3b0 drivers/base/core.c:2729
2 locks held by getty/5586:
#0: ffff8880325b10a0 (&tty->ldisc_sem){++++}-{0:0}
, at: tty_ldisc_ref_wait+0x24/0x80 drivers/tty/tty_ldisc.c:243
#1:
ffffc90002fde2f0
(
&ldata->atomic_read_lock
){+.+.}-{4:4}
, at: n_tty_read+0xfba/0x1480 drivers/tty/n_tty.c:2211
4 locks held by udevd/5840:
#0: ffff8880311240a0 (&p->lock){+.+.}-{4:4}
, at: seq_read_iter+0xd8/0x12b0 fs/seq_file.c:182
#1:
ffff8880338b4c88