INFO: task syz-executor756:5040 blocked for more than 143 seconds. Not tainted 6.6.0-rc4-syzkaller-00284-gb9ddbb0cde2a #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor756 state:D stack:25192 pid:5040 ppid:5038 flags:0x00004002 Call Trace: context_switch kernel/sched/core.c:5382 [inline] __schedule+0x196c/0x4af0 kernel/sched/core.c:6695 schedule+0xc3/0x180 kernel/sched/core.c:6771 schedule_timeout+0xb0/0x300 kernel/time/timer.c:2143 do_wait_for_common kernel/sched/completion.c:95 [inline] __wait_for_common kernel/sched/completion.c:116 [inline] wait_for_common kernel/sched/completion.c:127 [inline] wait_for_completion+0x354/0x620 kernel/sched/completion.c:148 __flush_work+0x950/0xac0 kernel/workqueue.c:3407 __cancel_work_timer+0x51d/0x6a0 kernel/workqueue.c:3494 uhid_dev_destroy drivers/hid/uhid.c:585 [inline] uhid_char_release+0xaf/0x600 drivers/hid/uhid.c:663 __fput+0x3f8/0x910 fs/file_table.c:384 task_work_run+0x24a/0x300 kernel/task_work.c:180 exit_task_work include/linux/task_work.h:38 [inline] do_exit+0xa2c/0x2650 kernel/exit.c:874 do_group_exit+0x206/0x2c0 kernel/exit.c:1024 __do_sys_exit_group kernel/exit.c:1035 [inline] __se_sys_exit_group kernel/exit.c:1033 [inline] __x64_sys_exit_group+0x3f/0x40 kernel/exit.c:1033 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x41/0xc0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd RIP: 0033:0x7f9a99239cb9 RSP: 002b:00007ffdac2f9448 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f9a99239cb9 RDX: 000000000000003c RSI: 00000000000000e7 RDI: 0000000000000000 RBP: 00007f9a992b4290 R08: ffffffffffffffb8 R09: 00000000000000a0 R10: 0000000000000000 R11: 0000000000000246 R12: 00007f9a992b4290 R13: 0000000000000000 R14: 00007f9a992b4d00 R15: 00007f9a9920ae40 INFO: task syz-executor756:5046 blocked for more than 145 seconds. Not tainted 6.6.0-rc4-syzkaller-00284-gb9ddbb0cde2a #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor756 state:D stack:27080 pid:5046 ppid:5042 flags:0x00004002 Call Trace: context_switch kernel/sched/core.c:5382 [inline] __schedule+0x196c/0x4af0 kernel/sched/core.c:6695 schedule+0xc3/0x180 kernel/sched/core.c:6771 schedule_timeout+0xb0/0x300 kernel/time/timer.c:2143 do_wait_for_common kernel/sched/completion.c:95 [inline] __wait_for_common kernel/sched/completion.c:116 [inline] wait_for_common kernel/sched/completion.c:127 [inline] wait_for_completion+0x354/0x620 kernel/sched/completion.c:148 __flush_work+0x950/0xac0 kernel/workqueue.c:3407 __cancel_work_timer+0x51d/0x6a0 kernel/workqueue.c:3494 uhid_dev_destroy drivers/hid/uhid.c:585 [inline] uhid_char_release+0xaf/0x600 drivers/hid/uhid.c:663 __fput+0x3f8/0x910 fs/file_table.c:384 task_work_run+0x24a/0x300 kernel/task_work.c:180 exit_task_work include/linux/task_work.h:38 [inline] do_exit+0xa2c/0x2650 kernel/exit.c:874 do_group_exit+0x206/0x2c0 kernel/exit.c:1024 __do_sys_exit_group kernel/exit.c:1035 [inline] __se_sys_exit_group kernel/exit.c:1033 [inline] __x64_sys_exit_group+0x3f/0x40 kernel/exit.c:1033 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x41/0xc0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd RIP: 0033:0x7f9a99239cb9 RSP: 002b:00007ffdac2f9448 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f9a99239cb9 RDX: 000000000000003c RSI: 00000000000000e7 RDI: 0000000000000000 RBP: 00007f9a992b4290 R08: ffffffffffffffb8 R09: 00000000000000a0 R10: 0000000000000000 R11: 0000000000000246 R12: 00007f9a992b4290 R13: 0000000000000000 R14: 00007f9a992b4d00 R15: 00007f9a9920ae40 INFO: task syz-executor756:5048 blocked for more than 147 seconds. Not tainted 6.6.0-rc4-syzkaller-00284-gb9ddbb0cde2a #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor756 state:D stack:27080 pid:5048 ppid:5045 flags:0x00004002 Call Trace: context_switch kernel/sched/core.c:5382 [inline] __schedule+0x196c/0x4af0 kernel/sched/core.c:6695 schedule+0xc3/0x180 kernel/sched/core.c:6771 schedule_timeout+0xb0/0x300 kernel/time/timer.c:2143 do_wait_for_common kernel/sched/completion.c:95 [inline] __wait_for_common kernel/sched/completion.c:116 [inline] wait_for_common kernel/sched/completion.c:127 [inline] wait_for_completion+0x354/0x620 kernel/sched/completion.c:148 __flush_work+0x950/0xac0 kernel/workqueue.c:3407 __cancel_work_timer+0x51d/0x6a0 kernel/workqueue.c:3494 uhid_dev_destroy drivers/hid/uhid.c:585 [inline] uhid_char_release+0xaf/0x600 drivers/hid/uhid.c:663 __fput+0x3f8/0x910 fs/file_table.c:384 task_work_run+0x24a/0x300 kernel/task_work.c:180 exit_task_work include/linux/task_work.h:38 [inline] do_exit+0xa2c/0x2650 kernel/exit.c:874 do_group_exit+0x206/0x2c0 kernel/exit.c:1024 __do_sys_exit_group kernel/exit.c:1035 [inline] __se_sys_exit_group kernel/exit.c:1033 [inline] __x64_sys_exit_group+0x3f/0x40 kernel/exit.c:1033 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x41/0xc0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd RIP: 0033:0x7f9a99239cb9 RSP: 002b:00007ffdac2f9448 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f9a99239cb9 RDX: 000000000000003c RSI: 00000000000000e7 RDI: 0000000000000000 RBP: 00007f9a992b4290 R08: ffffffffffffffb8 R09: 00000000000000a0 R10: 0000000000000000 R11: 0000000000000246 R12: 00007f9a992b4290 R13: 0000000000000000 R14: 00007f9a992b4d00 R15: 00007f9a9920ae40 INFO: task syz-executor756:5054 blocked for more than 149 seconds. Not tainted 6.6.0-rc4-syzkaller-00284-gb9ddbb0cde2a #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor756 state:D stack:26984 pid:5054 ppid:5039 flags:0x00004002 Call Trace: context_switch kernel/sched/core.c:5382 [inline] __schedule+0x196c/0x4af0 kernel/sched/core.c:6695 schedule+0xc3/0x180 kernel/sched/core.c:6771 schedule_timeout+0xb0/0x300 kernel/time/timer.c:2143 do_wait_for_common kernel/sched/completion.c:95 [inline] __wait_for_common kernel/sched/completion.c:116 [inline] wait_for_common kernel/sched/completion.c:127 [inline] wait_for_completion+0x354/0x620 kernel/sched/completion.c:148 __flush_work+0x950/0xac0 kernel/workqueue.c:3407 __cancel_work_timer+0x51d/0x6a0 kernel/workqueue.c:3494 uhid_dev_destroy drivers/hid/uhid.c:585 [inline] uhid_char_release+0xaf/0x600 drivers/hid/uhid.c:663 __fput+0x3f8/0x910 fs/file_table.c:384 task_work_run+0x24a/0x300 kernel/task_work.c:180 exit_task_work include/linux/task_work.h:38 [inline] do_exit+0xa2c/0x2650 kernel/exit.c:874 do_group_exit+0x206/0x2c0 kernel/exit.c:1024 __do_sys_exit_group kernel/exit.c:1035 [inline] __se_sys_exit_group kernel/exit.c:1033 [inline] __x64_sys_exit_group+0x3f/0x40 kernel/exit.c:1033 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x41/0xc0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd RIP: 0033:0x7f9a99239cb9 RSP: 002b:00007ffdac2f9448 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f9a99239cb9 RDX: 000000000000003c RSI: 00000000000000e7 RDI: 0000000000000000 RBP: 00007f9a992b4290 R08: ffffffffffffffb8 R09: 00000000000000a0 R10: 0000000000000000 R11: 0000000000000246 R12: 00007f9a992b4290 R13: 0000000000000000 R14: 00007f9a992b4d00 R15: 00007f9a9920ae40 Showing all locks held in the system: 3 locks held by kworker/0:0/8: 3 locks held by kworker/0:1/9: 3 locks held by kworker/1:1/27: 1 lock held by khungtaskd/29: #0: ffffffff8d32c420 ( rcu_read_lock ){....}-{1:2}, at: rcu_lock_acquire include/linux/rcupdate.h:303 [inline] ){....}-{1:2}, at: rcu_read_lock include/linux/rcupdate.h:749 [inline] ){....}-{1:2}, at: debug_show_all_locks+0x55/0x2a0 kernel/locking/lockdep.c:6613 3 locks held by kworker/1:2/54: 5 locks held by kworker/u4:6/1027: #0: ffff8880b993c318 (&rq->__lock ){-.-.}-{2:2}, at: raw_spin_rq_lock_nested+0x2a/0x140 kernel/sched/core.c:558 #1: ffff8880b9928808 ( &per_cpu_ptr(group->pcpu, cpu)->seq ){-.-.}-{0:0} , at: process_one_work kernel/workqueue.c:2605 [inline] , at: process_scheduled_works+0x825/0x1400 kernel/workqueue.c:2703 #2: ffffffff8d1c8630 (cpu_hotplug_lock){++++}-{0:0}, at: static_key_disable+0x12/0x20 kernel/jump_label.c:242 #3: ffffffff9213bef0 (&obj_hash[i].lock){-.-.}-{2:2} , at: debug_object_activate+0x163/0x530 lib/debugobjects.c:717 #4: ffffffff8d1dcfa8 ( text_mutex ){+.+.}-{3:3} , at: arch_jump_label_transform_apply+0x17/0x30 arch/x86/kernel/jump_label.c:145 2 locks held by getty/4789: #0: ffff8880265cb0a0 ( &tty->ldisc_sem ){++++}-{0:0}