INFO: task syz-executor.3:5167 blocked for more than 143 seconds. Not tainted 6.8.0-rc4-syzkaller-00034-g8d3dea210042 #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor.3 state:D stack:25784 pid:5167 tgid:5167 ppid:5088 flags:0x00004006 Call Trace: context_switch kernel/sched/core.c:5400 [inline] __schedule+0x177f/0x49a0 kernel/sched/core.c:6727 __schedule_loop kernel/sched/core.c:6802 [inline] schedule+0x149/0x260 kernel/sched/core.c:6817 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+0x354/0x620 kernel/sched/completion.c:148 __flush_work+0x950/0xad0 kernel/workqueue.c:3410 __cancel_work_timer+0x51d/0x6b0 kernel/workqueue.c:3497 uhid_dev_destroy drivers/hid/uhid.c:584 [inline] uhid_char_release+0xaf/0x600 drivers/hid/uhid.c:662 __fput+0x429/0x8a0 fs/file_table.c:376 __do_sys_close fs/open.c:1554 [inline] __se_sys_close fs/open.c:1539 [inline] __x64_sys_close+0x7e/0x110 fs/open.c:1539 do_syscall_64+0xf9/0x240 entry_SYSCALL_64_after_hwframe+0x6f/0x77 RIP: 0033:0x7f5c9c67cc9a RSP: 002b:00007ffc304c45b0 EFLAGS: 00000293 ORIG_RAX: 0000000000000003 RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 00007f5c9c67cc9a RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000003 RBP: 0000000000000048 R08: 0000001b31060000 R09: 00007f5c9c7abf8c R10: 0000000000001118 R11: 0000000000000293 R12: 00007f5c9c200248 R13: ffffffffffffffff R14: 00007f5c9c200000 R15: 0000000000012f8a INFO: task syz-executor.4:5168 blocked for more than 145 seconds. Not tainted 6.8.0-rc4-syzkaller-00034-g8d3dea210042 #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor.4 state:D stack:25144 pid:5168 tgid:5168 ppid:5094 flags:0x00004006 Call Trace: context_switch kernel/sched/core.c:5400 [inline] __schedule+0x177f/0x49a0 kernel/sched/core.c:6727 __schedule_loop kernel/sched/core.c:6802 [inline] schedule+0x149/0x260 kernel/sched/core.c:6817 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+0x354/0x620 kernel/sched/completion.c:148 __flush_work+0x950/0xad0 kernel/workqueue.c:3410 __cancel_work_timer+0x51d/0x6b0 kernel/workqueue.c:3497 uhid_dev_destroy drivers/hid/uhid.c:584 [inline] uhid_char_release+0xaf/0x600 drivers/hid/uhid.c:662 __fput+0x429/0x8a0 fs/file_table.c:376 __do_sys_close fs/open.c:1554 [inline] __se_sys_close fs/open.c:1539 [inline] __x64_sys_close+0x7e/0x110 fs/open.c:1539 do_syscall_64+0xf9/0x240 entry_SYSCALL_64_after_hwframe+0x6f/0x77 RIP: 0033:0x7fb6a807cc9a RSP: 002b:00007ffff3291fe0 EFLAGS: 00000293 ORIG_RAX: 0000000000000003 RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 00007fb6a807cc9a RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000003 RBP: 0000000000000048 R08: 0000001b31860000 R09: 00007fb6a81abf8c R10: 0000000000001118 R11: 0000000000000293 R12: 00007fb6a7c00248 R13: ffffffffffffffff R14: 00007fb6a7c00000 R15: 0000000000012f99 INFO: task syz-executor.0:5169 blocked for more than 146 seconds. Not tainted 6.8.0-rc4-syzkaller-00034-g8d3dea210042 #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor.0 state:D stack:25880 pid:5169 tgid:5169 ppid:5082 flags:0x00004006 Call Trace: context_switch kernel/sched/core.c:5400 [inline] __schedule+0x177f/0x49a0 kernel/sched/core.c:6727 __schedule_loop kernel/sched/core.c:6802 [inline] schedule+0x149/0x260 kernel/sched/core.c:6817 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+0x354/0x620 kernel/sched/completion.c:148 __flush_work+0x950/0xad0 kernel/workqueue.c:3410 __cancel_work_timer+0x51d/0x6b0 kernel/workqueue.c:3497 uhid_dev_destroy drivers/hid/uhid.c:584 [inline] uhid_char_release+0xaf/0x600 drivers/hid/uhid.c:662 __fput+0x429/0x8a0 fs/file_table.c:376 __do_sys_close fs/open.c:1554 [inline] __se_sys_close fs/open.c:1539 [inline] __x64_sys_close+0x7e/0x110 fs/open.c:1539 do_syscall_64+0xf9/0x240 entry_SYSCALL_64_after_hwframe+0x6f/0x77 RIP: 0033:0x7efecfc7cc9a RSP: 002b:00007ffedd4642e0 EFLAGS: 00000293 ORIG_RAX: 0000000000000003 RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 00007efecfc7cc9a RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000003 RBP: 0000000000000048 R08: 0000001b30f60000 R09: 00007efecfdabf8c R10: 0000000000001118 R11: 0000000000000293 R12: 00007efecf800248 R13: ffffffffffffffff R14: 00007efecf800000 R15: 00000000000130c5 Showing all locks held in the system: 3 locks held by kworker/0:0/8: #0: ffff888014c8c938 ( (wq_completion)events ){+.+.}-{0:0} , at: process_one_work kernel/workqueue.c:2608 [inline] , at: process_scheduled_works+0x825/0x1420 kernel/workqueue.c:2706 #1: ffffc900000d7d20 ( (linkwatch_work).work){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:2608 [inline] (linkwatch_work).work){+.+.}-{0:0}, at: process_scheduled_works+0x825/0x1420 kernel/workqueue.c:2706 #2: ffffffff8f362ac8 ( rtnl_mutex ){+.+.}-{3:3} , at: linkwatch_event+0xe/0x60 net/core/link_watch.c:281 3 locks held by kworker/1:1/27: 1 lock held by khungtaskd/29: #0: ffffffff8e130ae0 ( rcu_read_lock ){....}-{1:2}, at: rcu_lock_acquire include/linux/rcupdate.h:298 [inline] ){....}-{1:2}, at: rcu_read_lock include/linux/rcupdate.h:750 [inline] ){....}-{1:2}, at: debug_show_all_locks+0x55/0x2a0 kernel/locking/lockdep.c:6614 7 locks held by kworker/0:2/55: 5 locks held by kworker/u4:4/61: #0: ffff888014c8f938