INFO: task kworker/1:2:306 blocked for more than 127 seconds. Not tainted 6.12.30-syzkaller-ge2bf362ee23b #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/1:2 state:D stack:0 pid:306 tgid:306 ppid:2 flags:0x00004000 Workqueue: usb_hub_wq hub_event Call Trace: context_switch kernel/sched/core.c:5929 [inline] __schedule+0x145b/0x1f10 kernel/sched/core.c:7755 __schedule_loop kernel/sched/core.c:7836 [inline] schedule+0xc6/0x240 kernel/sched/core.c:7851 schedule_preempt_disabled+0x14/0x30 kernel/sched/core.c:7908 __mutex_lock_common kernel/locking/mutex.c:692 [inline] __mutex_lock+0x836/0x1b60 kernel/locking/mutex.c:786 __mutex_lock_slowpath+0xe/0x20 kernel/locking/mutex.c:1117 mutex_lock+0x102/0x1c0 kernel/locking/mutex.c:270 rcu_barrier+0x4d/0x530 kernel/rcu/tree.c:4574 scsi_host_dev_release+0xae/0x2f0 drivers/scsi/hosts.c:344 device_release+0xab/0x1e0 drivers/base/core.c:-1 kobject_cleanup lib/kobject.c:689 [inline] kobject_release lib/kobject.c:720 [inline] kref_put include/linux/kref.h:65 [inline] kobject_put+0x1aa/0x2a0 lib/kobject.c:737 put_device+0x23/0x40 drivers/base/core.c:3800 scsi_host_put+0x20/0x30 drivers/scsi/hosts.c:625 release_everything+0x1f8/0x210 drivers/usb/storage/usb.c:971 usb_stor_probe2+0x2ff/0xbd0 drivers/usb/storage/usb.c:1168 storage_probe+0x76e/0xd90 drivers/usb/storage/usb.c:1232 usb_probe_interface+0x696/0xc00 drivers/usb/core/driver.c:399 call_driver_probe drivers/base/dd.c:-1 [inline] really_probe+0x2d3/0x890 drivers/base/dd.c:657 __driver_probe_device+0x198/0x280 drivers/base/dd.c:799 driver_probe_device+0x54/0x3f0 drivers/base/dd.c:829 __device_attach_driver+0x2f1/0x4b0 drivers/base/dd.c:957 bus_for_each_drv+0x260/0x2f0 drivers/base/bus.c:459 __device_attach+0x2bd/0x3a0 drivers/base/dd.c:1029 device_initial_probe+0x1e/0x30 drivers/base/dd.c:1078 bus_probe_device+0x18b/0x270 drivers/base/bus.c:534 device_add+0x80c/0xc00 drivers/base/core.c:3692 usb_set_configuration+0x1ad4/0x20b0 drivers/usb/core/message.c:2210 usb_generic_driver_probe+0x95/0x160 drivers/usb/core/generic.c:254 usb_probe_device+0x1d4/0x380 drivers/usb/core/driver.c:294 call_driver_probe drivers/base/dd.c:-1 [inline] really_probe+0x2d3/0x890 drivers/base/dd.c:657 __driver_probe_device+0x198/0x280 drivers/base/dd.c:799 driver_probe_device+0x54/0x3f0 drivers/base/dd.c:829 __device_attach_driver+0x2f1/0x4b0 drivers/base/dd.c:957 bus_for_each_drv+0x260/0x2f0 drivers/base/bus.c:459 __device_attach+0x2bd/0x3a0 drivers/base/dd.c:1029 device_initial_probe+0x1e/0x30 drivers/base/dd.c:1078 bus_probe_device+0x18b/0x270 drivers/base/bus.c:534 device_add+0x80c/0xc00 drivers/base/core.c:3692 usb_new_device+0x9ed/0x1590 drivers/usb/core/hub.c:2662 hub_port_connect drivers/usb/core/hub.c:5533 [inline] hub_port_connect_change drivers/usb/core/hub.c:5673 [inline] port_event drivers/usb/core/hub.c:5833 [inline] hub_event+0x265b/0x41a0 drivers/usb/core/hub.c:5915 process_one_work kernel/workqueue.c:3238 [inline] process_scheduled_works+0x7d5/0x1020 kernel/workqueue.c:3319 worker_thread+0xc58/0x1250 kernel/workqueue.c:3400 kthread+0x2c7/0x370 kernel/kthread.c:389 ret_from_fork+0x64/0xa0 arch/x86/kernel/process.c:153 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244 INFO: task kworker/u8:41:21280 blocked for more than 134 seconds. Not tainted 6.12.30-syzkaller-ge2bf362ee23b #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/u8:41 state:D stack:0 pid:21280 tgid:21280 ppid:2 flags:0x00004000 Workqueue: netns cleanup_net Call Trace: context_switch kernel/sched/core.c:5929 [inline] __schedule+0x145b/0x1f10 kernel/sched/core.c:7755 __schedule_loop kernel/sched/core.c:7836 [inline] schedule+0xc6/0x240 kernel/sched/core.c:7851 schedule_preempt_disabled+0x14/0x30 kernel/sched/core.c:7908 __mutex_lock_common kernel/locking/mutex.c:692 [inline] __mutex_lock+0x836/0x1b60 kernel/locking/mutex.c:786 __mutex_lock_slowpath+0xe/0x20 kernel/locking/mutex.c:1117 mutex_lock+0x102/0x1c0 kernel/locking/mutex.c:270 rcu_barrier+0x4d/0x530 kernel/rcu/tree.c:4574 netdev_run_todo+0x10e/0xcb0 net/core/dev.c:10864 rtnl_unlock+0x12/0x20 net/core/rtnetlink.c:152 cleanup_net+0x632/0xc70 net/core/net_namespace.c:638 process_one_work kernel/workqueue.c:3238 [inline] process_scheduled_works+0x7d5/0x1020 kernel/workqueue.c:3319 worker_thread+0xc58/0x1250 kernel/workqueue.c:3400 kthread+0x2c7/0x370 kernel/kthread.c:389 ret_from_fork+0x64/0xa0 arch/x86/kernel/process.c:153 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244 INFO: task syz-executor:26890 blocked for more than 136 seconds.