INFO: task kworker/0:9:12230 blocked for more than 143 seconds.
Not tainted 6.1.0-rc7-syzkaller-00159-g81c25247a2a0 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/0:9 state:D stack:18488 pid:12230 ppid:2 flags:0x00004000
Workqueue: usb_hub_wq hub_event
Call Trace:
context_switch kernel/sched/core.c:5209 [inline]
__schedule+0x979/0x2770 kernel/sched/core.c:6521
schedule+0xda/0x1b0 kernel/sched/core.c:6597
rwsem_down_write_slowpath+0x5fc/0x12d0 kernel/locking/rwsem.c:1190
__down_write_common kernel/locking/rwsem.c:1305 [inline]
__down_write_common kernel/locking/rwsem.c:1302 [inline]
__down_write kernel/locking/rwsem.c:1314 [inline]
down_write+0x1e4/0x220 kernel/locking/rwsem.c:1563
usb_deregister_dev+0xa5/0x320 drivers/usb/core/file.c:239
sisusb_disconnect+0x5a/0x200 drivers/usb/misc/sisusbvga/sisusbvga.c:2907
usb_unbind_interface+0x1d8/0x8e0 drivers/usb/core/driver.c:458
device_remove drivers/base/dd.c:550 [inline]
device_remove+0x11f/0x170 drivers/base/dd.c:542
__device_release_driver drivers/base/dd.c:1249 [inline]
device_release_driver_internal+0x4a1/0x700 drivers/base/dd.c:1275
bus_remove_device+0x2e3/0x590 drivers/base/bus.c:529
device_del+0x4f3/0xc80 drivers/base/core.c:3704
usb_disable_device+0x356/0x7a0 drivers/usb/core/message.c:1419
usb_disconnect.cold+0x259/0x6ed drivers/usb/core/hub.c:2235
hub_port_connect drivers/usb/core/hub.c:5244 [inline]
hub_port_connect_change drivers/usb/core/hub.c:5549 [inline]
port_event drivers/usb/core/hub.c:5709 [inline]
hub_event+0x1fb1/0x4810 drivers/usb/core/hub.c:5791
process_one_work+0x9bf/0x1710 kernel/workqueue.c:2289
process_scheduled_works kernel/workqueue.c:2352 [inline]
worker_thread+0x854/0x1080 kernel/workqueue.c:2438
kthread+0x2ea/0x3a0 kernel/kthread.c:376
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:306
INFO: task syz-executor.0:29606 blocked for more than 143 seconds.
Not tainted 6.1.0-rc7-syzkaller-00159-g81c25247a2a0 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.0 state:D
stack:28656 pid:29606 ppid:9422 flags:0x00000004
Call Trace:
context_switch kernel/sched/core.c:5209 [inline]
__schedule+0x979/0x2770 kernel/sched/core.c:6521
schedule+0xda/0x1b0 kernel/sched/core.c:6597
schedule_preempt_disabled+0xf/0x20 kernel/sched/core.c:6656
__mutex_lock_common kernel/locking/mutex.c:679 [inline]
__mutex_lock+0xa44/0x1350 kernel/locking/mutex.c:747
sisusb_open+0xb2/0x4d0 drivers/usb/misc/sisusbvga/sisusbvga.c:2213
usb_open+0x204/0x2e0 drivers/usb/core/file.c:48
chrdev_open+0x266/0x770 fs/char_dev.c:414
do_dentry_open+0x6c7/0x12a0 fs/open.c:882
do_open fs/namei.c:3557 [inline]
path_openat+0x1bf6/0x2860 fs/namei.c:3714
do_filp_open+0x1b6/0x400 fs/namei.c:3741
do_sys_openat2+0x16d/0x4c0 fs/open.c:1310
do_sys_open fs/open.c:1326 [inline]
__do_sys_openat fs/open.c:1342 [inline]
__se_sys_openat fs/open.c:1337 [inline]
__x64_sys_openat+0x13f/0x1f0 fs/open.c:1337
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f35b6089264
RSP: 002b:00007f35b51e6ca0 EFLAGS: 00000293 ORIG_RAX: 0000000000000101
RAX: ffffffffffffffda RBX: 00007f35b61f71f0 RCX: 00007f35b6089264
RDX: 0000000000000002 RSI: 00007f35b51e6d40 RDI: 00000000ffffff9c
RBP: 00007f35b51e6d40 R08: 0000000000000000 R09: 000000000000000f
R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000002
R13: 00007ffdff6c716f R14: 00007f35b51e7300 R15: 0000000000022000
INFO: task syz-executor.5:29598 blocked for more than 143 seconds.
Not tainted 6.1.0-rc7-syzkaller-00159-g81c25247a2a0 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.5 state:D stack:29000 pid:29598 ppid:9420 flags:0x00000004
Call Trace:
context_switch kernel/sched/core.c:5209 [inline]
__schedule+0x979/0x2770 kernel/sched/core.c:6521
schedule+0xda/0x1b0 kernel/sched/core.c:6597
schedule_preempt_disabled+0xf/0x20 kernel/sched/core.c:6656
__mutex_lock_common kernel/locking/mutex.c:679 [inline]
__mutex_lock+0xa44/0x1350 kernel/locking/mutex.c:747
sisusb_open+0xb2/0x4d0 drivers/usb/misc/sisusbvga/sisusbvga.c:2213
usb_open+0x204/0x2e0 drivers/usb/core/file.c:48
chrdev_open+0x266/0x770 fs/char_dev.c:414
do_dentry_open+0x6c7/0x12a0 fs/open.c:882
do_open fs/namei.c:3557 [inline]
path_openat+0x1bf6/0x2860 fs/namei.c:3714
do_filp_open+0x1b6/0x400 fs/namei.c:3741
do_sys_openat2+0x16d/0x4c0 fs/open.c:1310
do_sys_open fs/open.c:1326 [inline]
__do_sys_openat fs/open.c:1342 [inline]
__se_sys_openat fs/open.c:1337 [inline]
__x64_sys_openat+0x13f/0x1f0 fs/open.c:1337
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f0d91af0264
RSP: 002b:00007f0d90eb0ca0 EFLAGS: 00000293 ORIG_RAX: 0000000000000101
RAX: ffffffffffffffda RBX: 00007f0d91c5df80 RCX: 00007f0d91af0264
RDX: 0000000000000002 RSI: 00007f0d90eb0d40 RDI: 00000000ffffff9c
RBP: 00007f0d90eb0d40 R08: 0000000000000000 R09: 000000000000000f
R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000002
R13: 00007ffd2907b75f R14: 00007f0d90eb1300 R15: 0000000000022000
INFO: task syz-executor.5:29609 blocked for more than 144 seconds.
Not tainted 6.1.0-rc7-syzkaller-00159-g81c25247a2a0 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.5 state:D stack:28992 pid:29609 ppid:9420 flags:0x00000004
Call Trace:
context_switch kernel/sched/core.c:5209 [inline]
__schedule+0x979/0x2770 kernel/sched/core.c:6521
schedule+0xda/0x1b0 kernel/sched/core.c:6597
schedule_preempt_disabled+0xf/0x20 kernel/sched/core.c:6656
__mutex_lock_common kernel/locking/mutex.c:679 [inline]
__mutex_lock+0xa44/0x1350 kernel/locking/mutex.c:747
sisusb_open+0xb2/0x4d0 drivers/usb/misc/sisusbvga/sisusbvga.c:2213
usb_open+0x204/0x2e0 drivers/usb/core/file.c:48
chrdev_open+0x266/0x770 fs/char_dev.c:414
do_dentry_open+0x6c7/0x12a0 fs/open.c:882
do_open fs/namei.c:3557 [inline]
path_openat+0x1bf6/0x2860 fs/namei.c:3714
do_filp_open+0x1b6/0x400 fs/namei.c:3741
do_sys_openat2+0x16d/0x4c0 fs/open.c:1310
do_sys_open fs/open.c:1326 [inline]
__do_sys_openat fs/open.c:1342 [inline]
__se_sys_openat fs/open.c:1337 [inline]
__x64_sys_openat+0x13f/0x1f0 fs/open.c:1337
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f0d91af0264
RSP: 002b:00007f0d90e6eca0 EFLAGS: 00000293 ORIG_RAX: 0000000000000101
RAX: ffffffffffffffda RBX: 00007f0d91c5e120 RCX: 00007f0d91af0264
RDX: 0000000000000002 RSI: 00007f0d90e6ed40 RDI: 00000000ffffff9c
RBP: 00007f0d90e6ed40 R08: 0000000000000000 R09: 000000000000000f
R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000002
R13: 00007ffd2907b75f R14: 00007f0d90e6f300 R15: 0000000000022000
INFO: task syz-executor.3:29618 blocked for more than 144 seconds.
Not tainted 6.1.0-rc7-syzkaller-00159-g81c25247a2a0 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.3 state:D stack:28992 pid:29618 ppid:6699 flags:0x00000004
Call Trace:
context_switch kernel/sched/core.c:5209 [inline]
__schedule+0x979/0x2770 kernel/sched/core.c:6521
schedule+0xda/0x1b0 kernel/sched/core.c:6597
schedule_preempt_disabled+0xf/0x20 kernel/sched/core.c:6656
__mutex_lock_common kernel/locking/mutex.c:679 [inline]
__mutex_lock+0xa44/0x1350 kernel/locking/mutex.c:747
sisusb_open+0xb2/0x4d0 drivers/usb/misc/sisusbvga/sisusbvga.c:2213
usb_open+0x204/0x2e0 drivers/usb/core/file.c:48
chrdev_open+0x266/0x770 fs/char_dev.c:414
do_dentry_open+0x6c7/0x12a0 fs/open.c:882
do_open fs/namei.c:3557 [inline]
path_openat+0x1bf6/0x2860 fs/namei.c:3714
do_filp_open+0x1b6/0x400 fs/namei.c:3741
do_sys_openat2+0x16d/0x4c0 fs/open.c:1310
do_sys_open fs/open.c:1326 [inline]
__do_sys_openat fs/open.c:1342 [inline]
__se_sys_openat fs/open.c:1337 [inline]
__x64_sys_openat+0x13f/0x1f0 fs/open.c:1337
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f4a38e15264
RSP: 002b:00007f4a37d51ca0 EFLAGS: 00000293 ORIG_RAX: 0000000000000101
RAX: ffffffffffffffda RBX: 00007f4a38f832c0 RCX: 00007f4a38e15264
RDX: 0000000000000002 RSI: 00007f4a37d51d40 RDI: 00000000ffffff9c
RBP: 00007f4a37d51d40 R08: 0000000000000000 R09: 000000000000000f
R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000002
R13: 00007fffddb7269f R14: 00007f4a37d52300 R15: 0000000000022000
INFO: task syz-executor.3:29619 blocked for more than 144 seconds.
Not tainted 6.1.0-rc7-syzkaller-00159-g81c25247a2a0 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.3 state:D stack:29064 pid:29619 ppid:6699 flags:0x00000004
Call Trace:
context_switch kernel/sched/core.c:5209 [inline]
__schedule+0x979/0x2770 kernel/sched/core.c:6521
schedule+0xda/0x1b0 kernel/sched/core.c:6597
schedule_preempt_disabled+0xf/0x20 kernel/sched/core.c:6656
__mutex_lock_common kernel/locking/mutex.c:679 [inline]
__mutex_lock+0xa44/0x1350 kernel/locking/mutex.c:747
sisusb_open+0xb2/0x4d0 drivers/usb/misc/sisusbvga/sisusbvga.c:2213
usb_open+0x204/0x2e0 drivers/usb/core/file.c:48
chrdev_open+0x266/0x770 fs/char_dev.c:414
do_dentry_open+0x6c7/0x12a0 fs/open.c:882
do_open fs/namei.c:3557 [inline]
path_openat+0x1bf6/0x2860 fs/namei.c:3714
do_filp_open+0x1b6/0x400 fs/namei.c:3741
do_sys_openat2+0x16d/0x4c0 fs/open.c:1310
do_sys_open fs/open.c:1326 [inline]
__do_sys_openat fs/open.c:1342 [inline]
__se_sys_openat fs/open.c:1337 [inline]
__x64_sys_openat+0x13f/0x1f0 fs/open.c:1337
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f4a38e15264
RSP: 002b:00007f4a37b30ca0 EFLAGS: 00000293 ORIG_RAX: 0000000000000101
RAX: ffffffffffffffda RBX: 00007f4a38f83390 RCX: 00007f4a38e15264
RDX: 0000000000000002 RSI: 00007f4a37b30d40 RDI: 00000000ffffff9c
RBP: 00007f4a37b30d40 R08: 0000000000000000 R09: 000000000000000f
R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000002
R13: 00007fffddb7269f R14: 00007f4a37b31300 R15: 0000000000022000
Showing all locks held in the system:
1 lock held by rcu_tasks_kthre/11:
#0: ffffffff87a960d0 (rcu_tasks.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x26/0xc70 kernel/rcu/tasks.h:507
1 lock held by khungtaskd/25:
#0: ffffffff87a96c20 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x53/0x260 kernel/locking/lockdep.c:6494
2 locks held by getty/1226:
#0: ffff88810a106098 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x22/0x80 drivers/tty/tty_ldisc.c:244
#1: ffffc900000452f0
(&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0xef0/0x13e0 drivers/tty/n_tty.c:2177
3 locks held by udevd/11768:
#0: ffff888139167888 (&of->mutex){+.+.}-{3:3}, at: kernfs_file_read_iter fs/kernfs/file.c:236 [inline]
#0: ffff888139167888 (&of->mutex){+.+.}-{3:3}, at: kernfs_fop_read_iter+0x189/0x7a0 fs/kernfs/file.c:276
#1: ffff8881199d7918 (kn->active#27){++++}-{0:0}, at: kernfs_file_read_iter fs/kernfs/file.c:237 [inline]
#1: ffff8881199d7918 (kn->active#27){++++}-{0:0}, at: kernfs_fop_read_iter+0x1ac/0x7a0 fs/kernfs/file.c:276
#2: ffff888113348190 (&dev->mutex){....}-{3:3}, at: device_lock_interruptible include/linux/device.h:840 [inline]
#2: ffff888113348190 (&dev->mutex){....}-{3:3}, at: read_descriptors+0x3c/0x2c0 drivers/usb/core/sysfs.c:874
6 locks held by kworker/0:9/12230:
#0: ffff888109c84d38 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: arch_atomic64_set arch/x86/include/asm/atomic64_64.h:34 [inline]
#0: ffff888109c84d38 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: arch_atomic_long_set include/linux/atomic/atomic-long.h:41 [inline]
#0: ffff888109c84d38 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: atomic_long_set include/linux/atomic/atomic-instrumented.h:1280 [inline]
#0: ffff888109c84d38 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: set_work_data kernel/workqueue.c:636 [inline]
#0: ffff888109c84d38 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: set_work_pool_and_clear_pending kernel/workqueue.c:663 [inline]
#0: ffff888109c84d38 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: process_one_work+0x86d/0x1710 kernel/workqueue.c:2260
#1: ffffc90002be7da8 ((work_completion)(&hub->events)){+.+.}-{0:0}, at: process_one_work+0x8a1/0x1710 kernel/workqueue.c:2264
#2: ffff88810f7fc190 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:835 [inline]
#2: ffff88810f7fc190 (&dev->mutex){....}-{3:3}, at: hub_event+0x1bc/0x4810 drivers/usb/core/hub.c:5737
#3: ffff888113348190 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:835 [inline]
#3: ffff888113348190 (&dev->mutex){....}-{3:3}, at: usb_disconnect.cold+0x43/0x6ed drivers/usb/core/hub.c:2226
#4: ffff88811bee6118 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:835 [inline]
#4: ffff88811bee6118 (&dev->mutex){....}-{3:3}, at: __device_driver_lock drivers/base/dd.c:1073 [inline]
#4: ffff88811bee6118 (&dev->mutex){....}-{3:3}, at: device_release_driver_internal+0xa0/0x700 drivers/base/dd.c:1272
#5: ffffffff88421e90 (minor_rwsem){++++}-{3:3}, at: usb_deregister_dev+0xa5/0x320 drivers/usb/core/file.c:239
6 locks held by kworker/0:3/24818:
#0: ffff888109c84d38 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: arch_atomic64_set arch/x86/include/asm/atomic64_64.h:34 [inline]
#0: ffff888109c84d38 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: arch_atomic_long_set include/linux/atomic/atomic-long.h:41 [inline]
#0: ffff888109c84d38 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: atomic_long_set include/linux/atomic/atomic-instrumented.h:1280 [inline]
#0: ffff888109c84d38 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: set_work_data kernel/workqueue.c:636 [inline]
#0: ffff888109c84d38 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: set_work_pool_and_clear_pending kernel/workqueue.c:663 [inline]
#0: ffff888109c84d38 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: process_one_work+0x86d/0x1710 kernel/workqueue.c:2260
#1: ffffc900032e7da8 ((work_completion)(&hub->events)){+.+.}-{0:0}, at: process_one_work+0x8a1/0x1710 kernel/workqueue.c:2264
#2: ffff88810f81c190 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:835 [inline]
#2: ffff88810f81c190 (&dev->mutex){....}-{3:3}, at: hub_event+0x1bc/0x4810 drivers/usb/core/hub.c:5737
#3: ffff88810f81f4f0 (&port_dev->status_lock){+.+.}-{3:3}, at: usb_lock_port drivers/usb/core/hub.c:3145 [inline]
#3: ffff88810f81f4f0 (&port_dev->status_lock){+.+.}-{3:3}, at: hub_port_connect drivers/usb/core/hub.c:5301 [inline]
#3: ffff88810f81f4f0 (&port_dev->status_lock){+.+.}-{3:3}, at: hub_port_connect_change drivers/usb/core/hub.c:5549 [inline]
#3: ffff88810f81f4f0 (&port_dev->status_lock){+.+.}-{3:3}, at: port_event drivers/usb/core/hub.c:5709 [inline]
#3: ffff88810f81f4f0 (&port_dev->status_lock){+.+.}-{3:3}, at: hub_event+0x2778/0x4810 drivers/usb/core/hub.c:5791
#4: ffff88810d48b068 (hcd->address0_mutex){+.+.}-{3:3}, at: hub_port_connect drivers/usb/core/hub.c:5302 [inline]
#4: ffff88810d48b068 (hcd->address0_mutex){+.+.}-{3:3}, at: hub_port_connect_change drivers/usb/core/hub.c:5549 [inline]
#4: ffff88810d48b068 (hcd->address0_mutex){+.+.}-{3:3}, at: port_event drivers/usb/core/hub.c:5709 [inline]
#4: ffff88810d48b068 (hcd->address0_mutex){+.+.}-{3:3}, at: hub_event+0x27ad/0x4810 drivers/usb/core/hub.c:5791
#5: ffffffff88413750 (ehci_cf_port_reset_rwsem){.+.+}-{3:3}, at: hub_port_reset+0x188/0x1cc0 drivers/usb/core/hub.c:2960
2 locks held by syz-executor.4/29605:
#0: ffffffff88421e90 (minor_rwsem){++++}-{3:3}, at: usb_open+0x24/0x2e0 drivers/usb/core/file.c:39
#1: ffff88811bf070d0 (&(sisusb->lock)){+.+.}-{3:3}, at: sisusb_open+0xb2/0x4d0 drivers/usb/misc/sisusbvga/sisusbvga.c:2213
2 locks held by syz-executor.0/29606:
#0: ffffffff88421e90 (minor_rwsem){++++}-{3:3}, at: usb_open+0x24/0x2e0 drivers/usb/core/file.c:39
#1: ffff88811bf070d0 (&(sisusb->lock)){+.+.}-{3:3}, at: sisusb_open+0xb2/0x4d0 drivers/usb/misc/sisusbvga/sisusbvga.c:2213
2 locks held by syz-executor.5/29598:
#0: ffffffff88421e90 (minor_rwsem){++++}-{3:3}, at: usb_open+0x24/0x2e0 drivers/usb/core/file.c:39
#1: ffff88811bf070d0 (&(sisusb->lock)){+.+.}-{3:3}, at: sisusb_open+0xb2/0x4d0 drivers/usb/misc/sisusbvga/sisusbvga.c:2213
2 locks held by syz-executor.5/29609:
#0: ffffffff88421e90 (minor_rwsem){++++}-{3:3}, at: usb_open+0x24/0x2e0 drivers/usb/core/file.c:39
#1: ffff88811bf070d0 (&(sisusb->lock)){+.+.}-{3:3}, at: sisusb_open+0xb2/0x4d0 drivers/usb/misc/sisusbvga/sisusbvga.c:2213
2 locks held by syz-executor.3/29618:
#0: ffffffff88421e90 (minor_rwsem){++++}-{3:3}, at: usb_open+0x24/0x2e0 drivers/usb/core/file.c:39
#1: ffff88811bf070d0 (&(sisusb->lock)){+.+.}-{3:3}, at: sisusb_open+0xb2/0x4d0 drivers/usb/misc/sisusbvga/sisusbvga.c:2213
2 locks held by syz-executor.3/29619:
#0: ffffffff88421e90 (minor_rwsem){++++}-{3:3}, at: usb_open+0x24/0x2e0 drivers/usb/core/file.c:39
#1: ffff88811bf070d0 (&(sisusb->lock)){+.+.}-{3:3}, at: sisusb_open+0xb2/0x4d0 drivers/usb/misc/sisusbvga/sisusbvga.c:2213
=============================================
NMI backtrace for cpu 0
CPU: 0 PID: 25 Comm: khungtaskd Not tainted 6.1.0-rc7-syzkaller-00159-g81c25247a2a0 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022
Call Trace:
__dump_stack lib/dump_stack.c:88 [inline]
dump_stack_lvl+0xcd/0x134 lib/dump_stack.c:106
nmi_cpu_backtrace.cold+0x24/0x18a lib/nmi_backtrace.c:111
nmi_trigger_cpumask_backtrace+0x32f/0x3c0 lib/nmi_backtrace.c:62
trigger_all_cpu_backtrace include/linux/nmi.h:148 [inline]
check_hung_uninterruptible_tasks kernel/hung_task.c:220 [inline]
watchdog+0xc71/0xfc0 kernel/hung_task.c:377
kthread+0x2ea/0x3a0 kernel/kthread.c:376
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:306
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 PID: 29700 Comm: syz-executor.5 Not tainted 6.1.0-rc7-syzkaller-00159-g81c25247a2a0 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022
RIP: 0010:lookup_object lib/debugobjects.c:195 [inline]
RIP: 0010:__debug_object_init+0xef/0xd10 lib/debugobjects.c:568
Code: 48 8b ab 20 c5 98 8b 31 c0 48 85 ed 74 46 48 ba 00 00 00 00 00 fc ff df 48 8d 7d 18 83 c0 01 48 89 f9 48 c1 e9 03 80 3c 11 00 <0f> 85 df 07 00 00 4c 3b 65 18 0f 84 69 03 00 00 48 89 e9 48 c1 e9
RSP: 0018:ffffc90002cffc50 EFLAGS: 00000046
RAX: 0000000000000004 RBX: 00000000000da520 RCX: 1ffff11021dadd22
RDX: dffffc0000000000 RSI: 0000000000000004 RDI: ffff88810ed6e910
RBP: ffff88810ed6e8f8 R08: 0000000000000202 R09: 0000000000000003
R10: fffff5200059ff78 R11: 0000000000000000 R12: ffffc90002cffd98
R13: 1ffff9200059ff99 R14: ffffffff8ba66a48 R15: ffffffff8ba66a40
FS: 0000555555d37400(0000) GS:ffff8881f6900000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fe8eee35265 CR3: 0000000139d6e000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
hrtimer_init_sleeper_on_stack kernel/time/hrtimer.c:445 [inline]
hrtimer_nanosleep+0x173/0x4a0 kernel/time/hrtimer.c:2095
common_nsleep+0xa2/0xc0 kernel/time/posix-timers.c:1236
__do_sys_clock_nanosleep kernel/time/posix-timers.c:1276 [inline]
__se_sys_clock_nanosleep kernel/time/posix-timers.c:1254 [inline]
__x64_sys_clock_nanosleep+0x2f4/0x430 kernel/time/posix-timers.c:1254
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7fe8eedd7daa
Code: 83 ff 03 74 3b 48 83 ec 28 b8 fa ff ff ff 83 ff 02 49 89 ca 0f 44 f8 64 8b 04 25 18 00 00 00 85 c0 75 2d b8 e6 00 00 00 0f 05 <89> c2 f7 da 3d 00 f0 ff ff b8 00 00 00 00 0f 47 c2 48 83 c4 28 c3
RSP: 002b:00007fff16be9280 EFLAGS: 00000246 ORIG_RAX: 00000000000000e6
RAX: ffffffffffffffda RBX: 0000000000000102 RCX: 00007fe8eedd7daa
RDX: 00007fff16be92c0 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 00007fff16be934c R08: 0000000000000862 R09: 00007fff16bee080
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000032
R13: 000000000020bf92 R14: 0000000000000000 R15: 00007fff16be93b0