INFO: task syz-executor.2:3552 blocked for more than 143 seconds. Not tainted 6.8.0-rc4-next-20240214-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor.2 state:D stack:27128 pid:3552 tgid:3551 ppid:5097 flags:0x00000006 Call Trace: context_switch kernel/sched/core.c:5400 [inline] __schedule+0x17df/0x4a40 kernel/sched/core.c:6727 __schedule_loop kernel/sched/core.c:6804 [inline] schedule+0x14b/0x320 kernel/sched/core.c:6819 schedule_timeout+0xb0/0x310 kernel/time/timer.c:2159 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+0x355/0x620 kernel/sched/completion.c:148 __flush_work+0xa7b/0xc90 kernel/workqueue.c:4018 __cancel_work_timer+0x51e/0x6b0 kernel/workqueue.c:4105 uhid_dev_destroy+0x8b/0x120 drivers/hid/uhid.c:584 uhid_char_write+0x761/0xb50 drivers/hid/uhid.c:761 vfs_write+0x2a4/0xcb0 fs/read_write.c:588 ksys_write+0x1a0/0x2c0 fs/read_write.c:643 do_syscall_64+0xfb/0x240 entry_SYSCALL_64_after_hwframe+0x6d/0x75 RIP: 0033:0x7fcf7e27dda9 RSP: 002b:00007fcf7f0570c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 RAX: ffffffffffffffda RBX: 00007fcf7e3abf80 RCX: 00007fcf7e27dda9 RDX: 0000000000000004 RSI: 0000000020000140 RDI: 0000000000000003 RBP: 00007fcf7e2ca47a R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 000000000000000b R14: 00007fcf7e3abf80 R15: 00007fffa208ae98 Showing all locks held in the system: 3 locks held by kworker/0:1/8: 2 locks held by kworker/u8:0/10: 1 lock held by khungtaskd/29: #0: ffffffff8e1315a0 ( rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire include/linux/rcupdate.h:298 [inline] rcu_read_lock){....}-{1:2}, at: rcu_read_lock include/linux/rcupdate.h:750 [inline] rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x55/0x2a0 kernel/locking/lockdep.c:6614 3 locks held by kworker/u8:4/57: #0: