INFO: task kworker/0:0:8 blocked for more than 143 seconds.
Not tainted 6.12.0-rc3-syzkaller-g2f87d0916ce0 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/0:0 state:D stack:23680 pid:8 tgid:8 ppid:2 flags:0x00004000
Workqueue: usb_hub_wq hub_event
Call Trace:
context_switch kernel/sched/core.c:5322 [inline]
__schedule+0x1895/0x4b30 kernel/sched/core.c:6682
__schedule_loop kernel/sched/core.c:6759 [inline]
schedule+0x14b/0x320 kernel/sched/core.c:6774
schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6831
rwsem_down_write_slowpath+0xeee/0x13b0 kernel/locking/rwsem.c:1176
__down_write_common kernel/locking/rwsem.c:1304 [inline]
__down_write kernel/locking/rwsem.c:1313 [inline]
down_write+0x1d7/0x220 kernel/locking/rwsem.c:1578
usb_deregister_dev+0x88/0x210 drivers/usb/core/file.c:186
wdm_disconnect+0x33/0x520 drivers/usb/class/cdc-wdm.c:1214
usb_unbind_interface+0x25e/0x940 drivers/usb/core/driver.c:461
device_remove drivers/base/dd.c:569 [inline]
__device_release_driver drivers/base/dd.c:1273 [inline]
device_release_driver_internal+0x503/0x7c0 drivers/base/dd.c:1296
bus_remove_device+0x34f/0x420 drivers/base/bus.c:576
device_del+0x57a/0x9b0 drivers/base/core.c:3864
usb_disable_device+0x3bf/0x850 drivers/usb/core/message.c:1418
usb_disconnect+0x340/0x950 drivers/usb/core/hub.c:2304
hub_port_connect drivers/usb/core/hub.c:5361 [inline]
hub_port_connect_change drivers/usb/core/hub.c:5661 [inline]
port_event drivers/usb/core/hub.c:5821 [inline]
hub_event+0x1ebc/0x5150 drivers/usb/core/hub.c:5903
process_one_work kernel/workqueue.c:3229 [inline]
process_scheduled_works+0xa63/0x1850 kernel/workqueue.c:3310
worker_thread+0x870/0xd30 kernel/workqueue.c:3391
kthread+0x2f0/0x390 kernel/kthread.c:389
ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:147
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
INFO: task kworker/0:1:9 blocked for more than 143 seconds.
Not tainted 6.12.0-rc3-syzkaller-g2f87d0916ce0 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/0:1 state:D stack:20696 pid:9 tgid:9 ppid:2 flags:0x00004000
Workqueue: usb_hub_wq hub_event
Call Trace:
context_switch kernel/sched/core.c:5322 [inline]
__schedule+0x1895/0x4b30 kernel/sched/core.c:6682
__schedule_loop kernel/sched/core.c:6759 [inline]
schedule+0x14b/0x320 kernel/sched/core.c:6774
schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6831
__mutex_lock_common kernel/locking/mutex.c:684 [inline]
__mutex_lock+0x6a7/0xd70 kernel/locking/mutex.c:752
wdm_disconnect+0xc4/0x520 drivers/usb/class/cdc-wdm.c:1216
usb_unbind_interface+0x25e/0x940 drivers/usb/core/driver.c:461
device_remove drivers/base/dd.c:569 [inline]
__device_release_driver drivers/base/dd.c:1273 [inline]
device_release_driver_internal+0x503/0x7c0 drivers/base/dd.c:1296
bus_remove_device+0x34f/0x420 drivers/base/bus.c:576
device_del+0x57a/0x9b0 drivers/base/core.c:3864
usb_disable_device+0x3bf/0x850 drivers/usb/core/message.c:1418
usb_disconnect+0x340/0x950 drivers/usb/core/hub.c:2304
hub_port_connect drivers/usb/core/hub.c:5361 [inline]
hub_port_connect_change drivers/usb/core/hub.c:5661 [inline]
port_event drivers/usb/core/hub.c:5821 [inline]
hub_event+0x1ebc/0x5150 drivers/usb/core/hub.c:5903
process_one_work kernel/workqueue.c:3229 [inline]
process_scheduled_works+0xa63/0x1850 kernel/workqueue.c:3310
worker_thread+0x870/0xd30 kernel/workqueue.c:3391
kthread+0x2f0/0x390 kernel/kthread.c:389
ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:147
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
INFO: task kworker/0:2:937 blocked for more than 144 seconds.
Not tainted 6.12.0-rc3-syzkaller-g2f87d0916ce0 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/0:2 state:D stack:21200 pid:937 tgid:937 ppid:2 flags:0x00004000
Workqueue: pm pm_runtime_work
Call Trace:
context_switch kernel/sched/core.c:5322 [inline]
__schedule+0x1895/0x4b30 kernel/sched/core.c:6682
__schedule_loop kernel/sched/core.c:6759 [inline]
schedule+0x14b/0x320 kernel/sched/core.c:6774
usb_kill_urb+0x1c9/0x300 drivers/usb/core/urb.c:713
usb_start_wait_urb+0x1b0/0x520 drivers/usb/core/message.c:65
usb_internal_control_msg drivers/usb/core/message.c:103 [inline]
usb_control_msg+0x2b1/0x4c0 drivers/usb/core/message.c:154
usb_port_suspend+0x2aa/0x14d0 drivers/usb/core/hub.c:3472
usb_generic_driver_suspend+0xb7/0x100 drivers/usb/core/generic.c:302
usb_suspend_device drivers/usb/core/driver.c:1272 [inline]
usb_suspend_both+0x480/0x1140 drivers/usb/core/driver.c:1443
usb_runtime_suspend+0x59/0x100 drivers/usb/core/driver.c:1968
__rpm_callback+0x2df/0x790 drivers/base/power/runtime.c:394
rpm_callback drivers/base/power/runtime.c:448 [inline]
rpm_suspend+0x88c/0x1730 drivers/base/power/runtime.c:672
__pm_runtime_suspend+0x131/0x1a0 drivers/base/power/runtime.c:1142
pm_runtime_autosuspend include/linux/pm_runtime.h:342 [inline]
usb_runtime_idle+0x42/0x50 drivers/usb/core/driver.c:2005
rpm_idle+0x589/0x930 drivers/base/power/runtime.c:524
pm_runtime_work+0x15e/0x210 drivers/base/power/runtime.c:970
process_one_work kernel/workqueue.c:3229 [inline]
process_scheduled_works+0xa63/0x1850 kernel/workqueue.c:3310
worker_thread+0x870/0xd30 kernel/workqueue.c:3391
kthread+0x2f0/0x390 kernel/kthread.c:389
ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:147
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
INFO: task kworker/0:4:5274 blocked for more than 144 seconds.
Not tainted 6.12.0-rc3-syzkaller-g2f87d0916ce0 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/0:4 state:D stack:23520 pid:5274 tgid:5274 ppid:2 flags:0x00004000
Workqueue: usb_hub_wq hub_event
Call Trace:
context_switch kernel/sched/core.c:5322 [inline]
__schedule+0x1895/0x4b30 kernel/sched/core.c:6682
__schedule_loop kernel/sched/core.c:6759 [inline]
schedule+0x14b/0x320 kernel/sched/core.c:6774
schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6831
rwsem_down_write_slowpath+0xeee/0x13b0 kernel/locking/rwsem.c:1176
__down_write_common kernel/locking/rwsem.c:1304 [inline]
__down_write kernel/locking/rwsem.c:1313 [inline]
down_write+0x1d7/0x220 kernel/locking/rwsem.c:1578
usb_register_dev+0x13a/0x5a0 drivers/usb/core/file.c:134
wdm_create+0x11cf/0x16d0 drivers/usb/class/cdc-wdm.c:1113
wdm_probe+0x21e/0x300 drivers/usb/class/cdc-wdm.c:1165
usb_probe_interface+0x645/0xbb0 drivers/usb/core/driver.c:399
really_probe+0x2b8/0xad0 drivers/base/dd.c:658
__driver_probe_device+0x1a2/0x390 drivers/base/dd.c:800
driver_probe_device+0x50/0x430 drivers/base/dd.c:830
__device_attach_driver+0x2d6/0x530 drivers/base/dd.c:958
bus_for_each_drv+0x24e/0x2e0 drivers/base/bus.c:459
__device_attach+0x333/0x520 drivers/base/dd.c:1030
bus_probe_device+0x189/0x260 drivers/base/bus.c:534
device_add+0x856/0xbf0 drivers/base/core.c:3675
usb_set_configuration+0x1976/0x1fb0 drivers/usb/core/message.c:2210
usb_generic_driver_probe+0x88/0x140 drivers/usb/core/generic.c:254
usb_probe_device+0x1b8/0x380 drivers/usb/core/driver.c:294
really_probe+0x2b8/0xad0 drivers/base/dd.c:658
__driver_probe_device+0x1a2/0x390 drivers/base/dd.c:800
driver_probe_device+0x50/0x430 drivers/base/dd.c:830
__device_attach_driver+0x2d6/0x530 drivers/base/dd.c:958
bus_for_each_drv+0x24e/0x2e0 drivers/base/bus.c:459
__device_attach+0x333/0x520 drivers/base/dd.c:1030
bus_probe_device+0x189/0x260 drivers/base/bus.c:534
device_add+0x856/0xbf0 drivers/base/core.c:3675
usb_new_device+0x104a/0x19a0 drivers/usb/core/hub.c:2651
hub_port_connect drivers/usb/core/hub.c:5521 [inline]
hub_port_connect_change drivers/usb/core/hub.c:5661 [inline]
port_event drivers/usb/core/hub.c:5821 [inline]
hub_event+0x2d6d/0x5150 drivers/usb/core/hub.c:5903
process_one_work kernel/workqueue.c:3229 [inline]
process_scheduled_works+0xa63/0x1850 kernel/workqueue.c:3310
worker_thread+0x870/0xd30 kernel/workqueue.c:3391
kthread+0x2f0/0x390 kernel/kthread.c:389
ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:147
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
INFO: task syz-executor.1:6365 blocked for more than 144 seconds.
Not tainted 6.12.0-rc3-syzkaller-g2f87d0916ce0 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.1 state:D stack:23808 pid:6365 tgid:6365 ppid:6016 flags:0x00004006
Call Trace:
context_switch kernel/sched/core.c:5322 [inline]
__schedule+0x1895/0x4b30 kernel/sched/core.c:6682
__schedule_loop kernel/sched/core.c:6759 [inline]
schedule+0x14b/0x320 kernel/sched/core.c:6774
rpm_resume+0x504/0x1670 drivers/base/power/runtime.c:834
rpm_resume+0x8fe/0x1670 drivers/base/power/runtime.c:892
__pm_runtime_resume+0x120/0x180 drivers/base/power/runtime.c:1172
pm_runtime_resume_and_get include/linux/pm_runtime.h:430 [inline]
usb_autopm_get_interface+0x22/0xf0 drivers/usb/core/driver.c:1833
wdm_manage_power+0x1c/0xa0 drivers/usb/class/cdc-wdm.c:1134
wdm_release+0x20f/0x460 drivers/usb/class/cdc-wdm.c:779
__fput+0x23f/0x880 fs/file_table.c:431
task_work_run+0x24f/0x310 kernel/task_work.c:228
resume_user_mode_work include/linux/resume_user_mode.h:50 [inline]
exit_to_user_mode_loop kernel/entry/common.c:114 [inline]
exit_to_user_mode_prepare include/linux/entry-common.h:328 [inline]
__syscall_exit_to_user_mode_work kernel/entry/common.c:207 [inline]
syscall_exit_to_user_mode+0x168/0x370 kernel/entry/common.c:218
do_syscall_64+0x100/0x230 arch/x86/entry/common.c:89
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fb62b27cea9
RSP: 002b:00007fb62b4dfb88 EFLAGS: 00000246 ORIG_RAX: 00000000000001b4
RAX: 0000000000000000 RBX: 00007fb62b3b5980 RCX: 00007fb62b27cea9
RDX: 0000000000000000 RSI: 000000000000001e RDI: 0000000000000003
RBP: 00007fb62b3b5980 R08: 0000000000000028 R09: 0000000a00000000
R10: 0000001b32460000 R11: 0000000000000246 R12: 00000000000181b9
R13: 00007fb62b3b405c R14: 0000000000000032 R15: 00007fb62b3b5980
INFO: task syz-executor:6383 blocked for more than 145 seconds.
Not tainted 6.12.0-rc3-syzkaller-g2f87d0916ce0 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor state:D stack:26816 pid:6383 tgid:6381 ppid:6017 flags:0x00000006
Call Trace:
context_switch kernel/sched/core.c:5322 [inline]
__schedule+0x1895/0x4b30 kernel/sched/core.c:6682
__schedule_loop kernel/sched/core.c:6759 [inline]
schedule+0x14b/0x320 kernel/sched/core.c:6774
schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6831
__mutex_lock_common kernel/locking/mutex.c:684 [inline]
__mutex_lock+0x6a7/0xd70 kernel/locking/mutex.c:752
wdm_open+0x56/0x550 drivers/usb/class/cdc-wdm.c:715
usb_open+0x14b/0x1d0 drivers/usb/core/file.c:47
chrdev_open+0x521/0x600 fs/char_dev.c:414
do_dentry_open+0x978/0x1460 fs/open.c:958
vfs_open+0x3e/0x330 fs/open.c:1088
do_open fs/namei.c:3774 [inline]
path_openat+0x2c84/0x3590 fs/namei.c:3933
do_filp_open+0x235/0x490 fs/namei.c:3960
do_sys_openat2+0x13e/0x1d0 fs/open.c:1415
do_sys_open fs/open.c:1430 [inline]
__do_sys_openat fs/open.c:1446 [inline]
__se_sys_openat fs/open.c:1441 [inline]
__x64_sys_openat+0x247/0x2a0 fs/open.c:1441
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fdb4807baa0
RSP: 002b:00007fdb48ec1c00 EFLAGS: 00000293 ORIG_RAX: 0000000000000101
RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007fdb4807baa0
RDX: 0000000000000002 RSI: 00007fdb48ec1ca0 RDI: 00000000ffffff9c
RBP: 00007fdb48ec1ca0 R08: 0000000000000000 R09: 00007fdb48ec1a17
R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000000
R13: 000000000000000b R14: 00007fdb481b3f80 R15: 00007fdb482dfaa8
INFO: task syz-executor.3:6410 blocked for more than 145 seconds.
Not tainted 6.12.0-rc3-syzkaller-g2f87d0916ce0 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.3 state:D stack:26816 pid:6410 tgid:6408 ppid:6019 flags:0x00000006
Call Trace:
context_switch kernel/sched/core.c:5322 [inline]
__schedule+0x1895/0x4b30 kernel/sched/core.c:6682
__schedule_loop kernel/sched/core.c:6759 [inline]
schedule+0x14b/0x320 kernel/sched/core.c:6774
schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6831
rwsem_down_read_slowpath kernel/locking/rwsem.c:1084 [inline]
__down_read_common kernel/locking/rwsem.c:1248 [inline]
__down_read kernel/locking/rwsem.c:1261 [inline]
down_read+0x705/0xa40 kernel/locking/rwsem.c:1526
usb_open+0x30/0x1d0 drivers/usb/core/file.c:38
chrdev_open+0x521/0x600 fs/char_dev.c:414
do_dentry_open+0x978/0x1460 fs/open.c:958
vfs_open+0x3e/0x330 fs/open.c:1088
do_open fs/namei.c:3774 [inline]
path_openat+0x2c84/0x3590 fs/namei.c:3933
do_filp_open+0x235/0x490 fs/namei.c:3960
do_sys_openat2+0x13e/0x1d0 fs/open.c:1415
do_sys_open fs/open.c:1430 [inline]
__do_sys_openat fs/open.c:1446 [inline]
__se_sys_openat fs/open.c:1441 [inline]
__x64_sys_openat+0x247/0x2a0 fs/open.c:1441
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fa78d27baa0
RSP: 002b:00007fa78e0e2c00 EFLAGS: 00000293 ORIG_RAX: 0000000000000101
RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007fa78d27baa0
RDX: 0000000000000002 RSI: 00007fa78e0e2ca0 RDI: 00000000ffffff9c
RBP: 00007fa78e0e2ca0 R08: 0000000000000000 R09: 00007fa78e0e2a17
R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000000
R13: 000000000000000b R14: 00007fa78d3b3f80 R15: 00007fa78d4dfaa8
Showing all locks held in the system:
6 locks held by kworker/0:0/8:
#0: ffff8881412ff148 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3204 [inline]
#0: ffff8881412ff148 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: process_scheduled_works+0x93b/0x1850 kernel/workqueue.c:3310
#1: ffffc900000d7d00 ((work_completion)(&hub->events)){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3205 [inline]
#1: ffffc900000d7d00 ((work_completion)(&hub->events)){+.+.}-{0:0}, at: process_scheduled_works+0x976/0x1850 kernel/workqueue.c:3310
#2: ffff88802854e190 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:1014 [inline]
#2: ffff88802854e190 (&dev->mutex){....}-{3:3}, at: hub_event+0x1fe/0x5150 drivers/usb/core/hub.c:5849
#3: ffff88806851a190 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:1014 [inline]
#3: ffff88806851a190 (&dev->mutex){....}-{3:3}, at: usb_disconnect+0x103/0x950 drivers/usb/core/hub.c:2295
#4: ffff888078713160 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:1014 [inline]
#4: ffff888078713160 (&dev->mutex){....}-{3:3}, at: __device_driver_lock drivers/base/dd.c:1095 [inline]
#4: ffff888078713160 (&dev->mutex){....}-{3:3}, at: device_release_driver_internal+0xce/0x7c0 drivers/base/dd.c:1293
#5: ffffffff8f5ac7b0 (minor_rwsem#2){++++}-{3:3}, at: usb_deregister_dev+0x88/0x210 drivers/usb/core/file.c:186
6 locks held by kworker/0:1/9:
#0: ffff8881412ff148 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3204 [inline]
#0: ffff8881412ff148 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: process_scheduled_works+0x93b/0x1850 kernel/workqueue.c:3310
#1: ffffc900000e7d00 ((work_completion)(&hub->events)){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3205 [inline]
#1: ffffc900000e7d00 ((work_completion)(&hub->events)){+.+.}-{0:0}, at: process_scheduled_works+0x976/0x1850 kernel/workqueue.c:3310
#2: ffff888028426190 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:1014 [inline]
#2: ffff888028426190 (&dev->mutex){....}-{3:3}, at: hub_event+0x1fe/0x5150 drivers/usb/core/hub.c:5849
#3: ffff88806851b190 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:1014 [inline]
#3: ffff88806851b190 (&dev->mutex){....}-{3:3}, at: usb_disconnect+0x103/0x950 drivers/usb/core/hub.c:2295
#4: ffff88807bcab160 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:1014 [inline]
#4: ffff88807bcab160 (&dev->mutex){....}-{3:3}, at: __device_driver_lock drivers/base/dd.c:1095 [inline]
#4: ffff88807bcab160 (&dev->mutex){....}-{3:3}, at: device_release_driver_internal+0xce/0x7c0 drivers/base/dd.c:1293
#5: ffffffff8f634528 (wdm_mutex){+.+.}-{3:3}, at: wdm_disconnect+0xc4/0x520 drivers/usb/class/cdc-wdm.c:1216
3 locks held by kworker/u8:1/12:
1 lock held by khungtaskd/30:
#0: ffffffff8e937de0 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire include/linux/rcupdate.h:337 [inline]
#0: ffffffff8e937de0 (rcu_read_lock){....}-{1:2}, at: rcu_read_lock include/linux/rcupdate.h:849 [inline]
#0: ffffffff8e937de0 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x55/0x2a0 kernel/locking/lockdep.c:6720
3 locks held by kworker/0:2/937:
#0: ffff88801c29a148 ((wq_completion)pm){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3204 [inline]
#0: ffff88801c29a148 ((wq_completion)pm){+.+.}-{0:0}, at: process_scheduled_works+0x93b/0x1850 kernel/workqueue.c:3310
#1: ffffc90003c57d00 ((work_completion)(&dev->power.work)){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3205 [inline]
#1: ffffc90003c57d00 ((work_completion)(&dev->power.work)){+.+.}-{0:0}, at: process_scheduled_works+0x976/0x1850 kernel/workqueue.c:3310
#2: ffff888028421510 (&port_dev->status_lock){+.+.}-{3:3}, at: usb_lock_port drivers/usb/core/hub.c:3206 [inline]
#2: ffff888028421510 (&port_dev->status_lock){+.+.}-{3:3}, at: usb_port_suspend+0x1c6/0x14d0 drivers/usb/core/hub.c:3463
2 locks held by getty/4988:
#0: ffff88802e2b70a0 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x25/0x70 drivers/tty/tty_ldisc.c:243
#1: ffffc90002f062f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x6a6/0x1e00 drivers/tty/n_tty.c:2211
6 locks held by kworker/0:4/5274:
#0: ffff8881412ff148 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3204 [inline]
#0: ffff8881412ff148 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: process_scheduled_works+0x93b/0x1850 kernel/workqueue.c:3310
#1: ffffc90004177d00 ((work_completion)(&hub->events)){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3205 [inline]
#1: ffffc90004177d00 ((work_completion)(&hub->events)){+.+.}-{0:0}, at: process_scheduled_works+0x976/0x1850 kernel/workqueue.c:3310
#2: ffff888028536190 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:1014 [inline]
#2: ffff888028536190 (&dev->mutex){....}-{3:3}, at: hub_event+0x1fe/0x5150 drivers/usb/core/hub.c:5849
#3: ffff88807e5b7190 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:1014 [inline]
#3: ffff88807e5b7190 (&dev->mutex){....}-{3:3}, at: __device_attach+0x8e/0x520 drivers/base/dd.c:1005
#4: ffff88807bb67160 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:1014 [inline]
#4: ffff88807bb67160 (&dev->mutex){....}-{3:3}, at: __device_attach+0x8e/0x520 drivers/base/dd.c:1005
#5: ffffffff8f5ac7b0 (minor_rwsem#2){++++}-{3:3}, at: usb_register_dev+0x13a/0x5a0 drivers/usb/core/file.c:134
1 lock held by syz-executor.1/6365:
#0: ffffffff8f634528 (wdm_mutex){+.+.}-{3:3}, at: wdm_release+0x4f/0x460 drivers/usb/class/cdc-wdm.c:764
2 locks held by syz-executor/6383:
#0: ffffffff8f5ac7b0 (minor_rwsem#2){++++}-{3:3}, at: usb_open+0x30/0x1d0 drivers/usb/core/file.c:38
#1: ffffffff8f634528 (wdm_mutex){+.+.}-{3:3}, at: wdm_open+0x56/0x550 drivers/usb/class/cdc-wdm.c:715
1 lock held by syz-executor.3/6410:
#0: ffffffff8f5ac7b0 (minor_rwsem#2){++++}-{3:3}, at: usb_open+0x30/0x1d0 drivers/usb/core/file.c:38
1 lock held by syz-executor.1/6753:
#0: ffffffff8f5ac7b0 (minor_rwsem#2){++++}-{3:3}, at: usb_open+0x30/0x1d0 drivers/usb/core/file.c:38
1 lock held by syz-executor/6757:
#0: ffffffff8f5ac7b0 (minor_rwsem#2){++++}-{3:3}, at: usb_open+0x30/0x1d0 drivers/usb/core/file.c:38
1 lock held by syz-executor.3/6760:
#0: ffffffff8f5ac7b0 (minor_rwsem#2){++++}-{3:3}, at: usb_open+0x30/0x1d0 drivers/usb/core/file.c:38
1 lock held by syz-executor.1/6810:
#0: ffffffff8f5ac7b0 (minor_rwsem#2){++++}-{3:3}, at: usb_open+0x30/0x1d0 drivers/usb/core/file.c:38
1 lock held by syz-executor/6814:
#0: ffffffff8f5ac7b0 (minor_rwsem#2){++++}-{3:3}, at: usb_open+0x30/0x1d0 drivers/usb/core/file.c:38
1 lock held by syz-executor.3/6817:
#0: ffffffff8f5ac7b0 (minor_rwsem#2){++++}-{3:3}, at: usb_open+0x30/0x1d0 drivers/usb/core/file.c:38
1 lock held by syz-executor.1/6864:
#0: ffffffff8f5ac7b0 (minor_rwsem#2){++++}-{3:3}, at: usb_open+0x30/0x1d0 drivers/usb/core/file.c:38
1 lock held by syz-executor/6872:
#0: ffffffff8f5ac7b0 (minor_rwsem#2){++++}-{3:3}, at: usb_open+0x30/0x1d0 drivers/usb/core/file.c:38
1 lock held by syz-executor.3/6875:
#0: ffffffff8f5ac7b0 (minor_rwsem#2){++++}-{3:3}, at: usb_open+0x30/0x1d0 drivers/usb/core/file.c:38
1 lock held by syz-executor/6930:
#0: ffffffff8f5ac7b0 (minor_rwsem#2){++++}-{3:3}, at: usb_open+0x30/0x1d0 drivers/usb/core/file.c:38
1 lock held by syz-executor.1/6933:
#0: ffffffff8f5ac7b0 (minor_rwsem#2){++++}-{3:3}, at: usb_open+0x30/0x1d0 drivers/usb/core/file.c:38
1 lock held by syz-executor.3/6940:
#0: ffffffff8f5ac7b0 (minor_rwsem#2){++++}-{3:3}, at: usb_open+0x30/0x1d0 drivers/usb/core/file.c:38
=============================================
NMI backtrace for cpu 0
CPU: 0 UID: 0 PID: 30 Comm: khungtaskd Not tainted 6.12.0-rc3-syzkaller-g2f87d0916ce0 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
Call Trace:
__dump_stack lib/dump_stack.c:94 [inline]
dump_stack_lvl+0x241/0x360 lib/dump_stack.c:120
nmi_cpu_backtrace+0x49c/0x4d0 lib/nmi_backtrace.c:113
nmi_trigger_cpumask_backtrace+0x198/0x320 lib/nmi_backtrace.c:62
trigger_all_cpu_backtrace include/linux/nmi.h:162 [inline]
check_hung_uninterruptible_tasks kernel/hung_task.c:223 [inline]
watchdog+0xff4/0x1040 kernel/hung_task.c:379
kthread+0x2f0/0x390 kernel/kthread.c:389
ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:147
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 UID: 0 PID: 2915 Comm: kworker/u8:7 Not tainted 6.12.0-rc3-syzkaller-g2f87d0916ce0 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
Workqueue: events_unbound cfg80211_wiphy_work
RIP: 0010:__orc_find arch/x86/kernel/unwind_orc.c:100 [inline]
RIP: 0010:orc_find arch/x86/kernel/unwind_orc.c:227 [inline]
RIP: 0010:unwind_next_frame+0x6b1/0x22d0 arch/x86/kernel/unwind_orc.c:494
Code: 42 80 3c 20 00 74 08 4c 89 f7 e8 ca 2d bd 00 49 8b 2e e9 32 02 00 00 4d 89 ec 4d 89 ee 48 89 e8 4c 29 f0 48 89 c1 48 c1 f9 02 <48> c1 e8 3f 48 01 c8 48 83 e0 fe 49 8d 1c 46 48 89 d8 48 c1 e8 03
RSP: 0018:ffffc90009dd7510 EFLAGS: 00000206
RAX: 0000000000000018 RBX: ffffffff914f8a08 RCX: 0000000000000006
RDX: 00000000000b0001 RSI: ffffffff90af7300 RDI: ffffffff814166e0
RBP: ffffffff9035e7e4 R08: 0000000000000007 R09: ffffc90009dd76d0
R10: ffffc90009dd7630 R11: ffffffff8180a0e0 R12: ffffffff9035e7cc
R13: ffffffff9035e7cc R14: ffffffff9035e7cc R15: ffffffff81fe933f
FS: 0000000000000000(0000) GS:ffff8880b8700000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fa21cad5ae0 CR3: 000000002f47a000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
arch_stack_walk+0x11c/0x150 arch/x86/kernel/stacktrace.c:25
stack_trace_save+0x118/0x1d0 kernel/stacktrace.c:122
kasan_save_stack mm/kasan/common.c:47 [inline]
kasan_save_track+0x3f/0x80 mm/kasan/common.c:68
kasan_save_free_info+0x40/0x50 mm/kasan/generic.c:579
poison_slab_object mm/kasan/common.c:247 [inline]
__kasan_slab_free+0x59/0x70 mm/kasan/common.c:264
kasan_slab_free include/linux/kasan.h:230 [inline]
slab_free_hook mm/slub.c:2342 [inline]
slab_free mm/slub.c:4579 [inline]
kmem_cache_free+0x1a2/0x420 mm/slub.c:4681
skb_kfree_head net/core/skbuff.c:1084 [inline]
skb_free_head net/core/skbuff.c:1098 [inline]
skb_release_data+0x677/0x8a0 net/core/skbuff.c:1125
skb_release_all net/core/skbuff.c:1190 [inline]
__kfree_skb net/core/skbuff.c:1204 [inline]
sk_skb_reason_drop+0x1c9/0x380 net/core/skbuff.c:1242
kfree_skb_reason include/linux/skbuff.h:1262 [inline]
kfree_skb include/linux/skbuff.h:1271 [inline]
ieee80211_iface_work+0x272/0xf20 net/mac80211/iface.c:1659
cfg80211_wiphy_work+0x2db/0x490 net/wireless/core.c:440
process_one_work kernel/workqueue.c:3229 [inline]
process_scheduled_works+0xa63/0x1850 kernel/workqueue.c:3310
worker_thread+0x870/0xd30 kernel/workqueue.c:3391
kthread+0x2f0/0x390 kernel/kthread.c:389
ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:147
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244