INFO: task kworker/1:4:4056 blocked for more than 143 seconds.
Not tainted 5.19.0-syzkaller-13666-gffcf9c5700e4 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/1:4 state:D stack:22208 pid: 4056 ppid: 2 flags:0x00004000
Workqueue: usb_hub_wq hub_event
Call Trace:
context_switch kernel/sched/core.c:5182 [inline]
__schedule+0x93f/0x26f0 kernel/sched/core.c:6494
schedule+0xda/0x1b0 kernel/sched/core.c:6570
rwsem_down_write_slowpath+0x59c/0x11e0 kernel/locking/rwsem.c:1182
__down_write_common kernel/locking/rwsem.c:1297 [inline]
__down_write_common kernel/locking/rwsem.c:1294 [inline]
__down_write kernel/locking/rwsem.c:1306 [inline]
down_write+0x135/0x150 kernel/locking/rwsem.c:1553
usb_register_dev drivers/usb/core/file.c:187 [inline]
usb_register_dev+0x198/0x7e0 drivers/usb/core/file.c:156
ld_usb_probe+0x8bf/0xdb0 drivers/usb/misc/ldusb.c:728
usb_probe_interface+0x30b/0x7f0 drivers/usb/core/driver.c:396
call_driver_probe drivers/base/dd.c:530 [inline]
really_probe+0x249/0xb90 drivers/base/dd.c:609
__driver_probe_device+0x1df/0x4d0 drivers/base/dd.c:748
driver_probe_device+0x4c/0x1a0 drivers/base/dd.c:778
__device_attach_driver+0x206/0x2e0 drivers/base/dd.c:901
bus_for_each_drv+0x15f/0x1e0 drivers/base/bus.c:427
__device_attach+0x1e4/0x530 drivers/base/dd.c:973
bus_probe_device+0x1e4/0x290 drivers/base/bus.c:487
device_add+0xbd5/0x1e90 drivers/base/core.c:3517
usb_set_configuration+0x1019/0x1900 drivers/usb/core/message.c:2170
usb_generic_driver_probe+0xba/0x100 drivers/usb/core/generic.c:238
usb_probe_device+0xd4/0x2c0 drivers/usb/core/driver.c:293
call_driver_probe drivers/base/dd.c:530 [inline]
really_probe+0x249/0xb90 drivers/base/dd.c:609
__driver_probe_device+0x1df/0x4d0 drivers/base/dd.c:748
driver_probe_device+0x4c/0x1a0 drivers/base/dd.c:778
__device_attach_driver+0x206/0x2e0 drivers/base/dd.c:901
bus_for_each_drv+0x15f/0x1e0 drivers/base/bus.c:427
__device_attach+0x1e4/0x530 drivers/base/dd.c:973
bus_probe_device+0x1e4/0x290 drivers/base/bus.c:487
device_add+0xbd5/0x1e90 drivers/base/core.c:3517
usb_new_device.cold+0x685/0x10ad drivers/usb/core/hub.c:2573
hub_port_connect drivers/usb/core/hub.c:5353 [inline]
hub_port_connect_change drivers/usb/core/hub.c:5497 [inline]
port_event drivers/usb/core/hub.c:5653 [inline]
hub_event+0x26c7/0x4610 drivers/usb/core/hub.c:5735
process_one_work+0x991/0x1610 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.5:28226 blocked for more than 143 seconds.
Not tainted 5.19.0-syzkaller-13666-gffcf9c5700e4 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.5 state:D stack:29120 pid:28226 ppid: 1320 flags:0x00000004
Call Trace:
context_switch kernel/sched/core.c:5182 [inline]
__schedule+0x93f/0x26f0 kernel/sched/core.c:6494
schedule+0xda/0x1b0 kernel/sched/core.c:6570
rwsem_down_read_slowpath+0x59f/0xb10 kernel/locking/rwsem.c:1087
__down_read_common kernel/locking/rwsem.c:1252 [inline]
__down_read kernel/locking/rwsem.c:1261 [inline]
down_read+0xe2/0x450 kernel/locking/rwsem.c:1501
usb_open+0x24/0x2e0 drivers/usb/core/file.c:39
chrdev_open+0x266/0x770 fs/char_dev.c:414
do_dentry_open+0x49c/0x1240 fs/open.c:878
do_open fs/namei.c:3557 [inline]
path_openat+0x1c92/0x28f0 fs/namei.c:3691
do_filp_open+0x1b6/0x400 fs/namei.c:3718
do_sys_openat2+0x16d/0x4c0 fs/open.c:1311
do_sys_open fs/open.c:1327 [inline]
__do_sys_openat fs/open.c:1343 [inline]
__se_sys_openat fs/open.c:1338 [inline]
__x64_sys_openat+0x13f/0x1f0 fs/open.c:1338
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: 0033:0x7f4322e95194
RSP: 002b:00007f4322657ca0 EFLAGS: 00000293 ORIG_RAX: 0000000000000101
RAX: ffffffffffffffda RBX: 00007f4322ff4f80 RCX: 00007f4322e95194
RDX: 0000000000000002 RSI: 00007f4322657d40 RDI: 00000000ffffff9c
RBP: 00007f4322657d40 R08: 0000000000000000 R09: 000000000000000f
R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000002
R13: 00007ffe6982eaff R14: 00007f4322658300 R15: 0000000000022000
INFO: task syz-executor.1:28797 blocked for more than 144 seconds.
Not tainted 5.19.0-syzkaller-13666-gffcf9c5700e4 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.1 state:D stack:28504 pid:28797 ppid: 27867 flags:0x00000004
Call Trace:
context_switch kernel/sched/core.c:5182 [inline]
__schedule+0x93f/0x26f0 kernel/sched/core.c:6494
schedule+0xda/0x1b0 kernel/sched/core.c:6570
rwsem_down_read_slowpath+0x59f/0xb10 kernel/locking/rwsem.c:1087
__down_read_common kernel/locking/rwsem.c:1252 [inline]
__down_read kernel/locking/rwsem.c:1261 [inline]
down_read+0xe2/0x450 kernel/locking/rwsem.c:1501
usb_open+0x24/0x2e0 drivers/usb/core/file.c:39
chrdev_open+0x266/0x770 fs/char_dev.c:414
do_dentry_open+0x49c/0x1240 fs/open.c:878
do_open fs/namei.c:3557 [inline]
path_openat+0x1c92/0x28f0 fs/namei.c:3691
do_filp_open+0x1b6/0x400 fs/namei.c:3718
do_sys_openat2+0x16d/0x4c0 fs/open.c:1311
do_sys_open fs/open.c:1327 [inline]
__do_sys_openat fs/open.c:1343 [inline]
__se_sys_openat fs/open.c:1338 [inline]
__x64_sys_openat+0x13f/0x1f0 fs/open.c:1338
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: 0033:0x7f2c0dbde194
RSP: 002b:00007f2c0d3a0ca0 EFLAGS: 00000293 ORIG_RAX: 0000000000000101
RAX: ffffffffffffffda RBX: 00007f2c0dd3df80 RCX: 00007f2c0dbde194
RDX: 0000000000000002 RSI: 00007f2c0d3a0d40 RDI: 00000000ffffff9c
RBP: 00007f2c0d3a0d40 R08: 0000000000000000 R09: 000000000000000f
R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000002
R13: 00007ffcc668b40f R14: 00007f2c0d3a1300 R15: 0000000000022000
Showing all locks held in the system:
1 lock held by rcu_tasks_kthre/11:
#0: ffffffff87a94410 (rcu_tasks.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x26/0xc70 kernel/rcu/tasks.h:507
1 lock held by khungtaskd/26:
#0: ffffffff87a94f60 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x53/0x260 kernel/locking/lockdep.c:6492
1 lock held by klogd/1167:
#0: ffff8881f6937b18 (&rq->__lock){-.-.}-{2:2}, at: raw_spin_rq_lock_nested+0x1e/0x30 kernel/sched/core.c:544
2 locks held by getty/1239:
#0: ffff888110b22098 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x22/0x80 drivers/tty/tty_ldisc.c:244
#1: ffffc900000432f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0xef0/0x13e0 drivers/tty/n_tty.c:2177
6 locks held by kworker/1:4/4056:
#0: ffff888109aeb138 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: arch_atomic64_set arch/x86/include/asm/atomic64_64.h:34 [inline]
#0: ffff888109aeb138 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: arch_atomic_long_set include/linux/atomic/atomic-long.h:41 [inline]
#0: ffff888109aeb138 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: atomic_long_set include/linux/atomic/atomic-instrumented.h:1280 [inline]
#0: ffff888109aeb138 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: set_work_data kernel/workqueue.c:636 [inline]
#0: ffff888109aeb138 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: set_work_pool_and_clear_pending kernel/workqueue.c:663 [inline]
#0: ffff888109aeb138 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: process_one_work+0x87a/0x1610 kernel/workqueue.c:2260
#1: ffffc9000180fda8 ((work_completion)(&hub->events)){+.+.}-{0:0}, at: process_one_work+0x8ae/0x1610 kernel/workqueue.c:2264
#2: ffff88810f397190 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:835 [inline]
#2: ffff88810f397190 (&dev->mutex){....}-{3:3}, at: hub_event+0x1bc/0x4610 drivers/usb/core/hub.c:5681
#3: ffff88810cfdd190 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:835 [inline]
#3: ffff88810cfdd190 (&dev->mutex){....}-{3:3}, at: __device_attach+0x76/0x530 drivers/base/dd.c:948
#4: ffff88810096a118 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:835 [inline]
#4: ffff88810096a118 (&dev->mutex){....}-{3:3}, at: __device_attach+0x76/0x530 drivers/base/dd.c:948
#5: ffffffff88424310 (minor_rwsem#2){++++}-{3:3}, at: usb_register_dev drivers/usb/core/file.c:187 [inline]
#5: ffffffff88424310 (minor_rwsem#2){++++}-{3:3}, at: usb_register_dev+0x198/0x7e0 drivers/usb/core/file.c:156
6 locks held by kworker/0:2/19476:
#0: ffff888109aeb138 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: arch_atomic64_set arch/x86/include/asm/atomic64_64.h:34 [inline]
#0: ffff888109aeb138 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: arch_atomic_long_set include/linux/atomic/atomic-long.h:41 [inline]
#0: ffff888109aeb138 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: atomic_long_set include/linux/atomic/atomic-instrumented.h:1280 [inline]
#0: ffff888109aeb138 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: set_work_data kernel/workqueue.c:636 [inline]
#0: ffff888109aeb138 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: set_work_pool_and_clear_pending kernel/workqueue.c:663 [inline]
#0: ffff888109aeb138 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: process_one_work+0x87a/0x1610 kernel/workqueue.c:2260
#1: ffffc90001057da8 ((work_completion)(&hub->events)){+.+.}-{0:0}, at: process_one_work+0x8ae/0x1610 kernel/workqueue.c:2264
#2: ffff88810f37f190 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:835 [inline]
#2: ffff88810f37f190 (&dev->mutex){....}-{3:3}, at: hub_event+0x1bc/0x4610 drivers/usb/core/hub.c:5681
#3: ffff88812e035190 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:835 [inline]
#3: ffff88812e035190 (&dev->mutex){....}-{3:3}, at: usb_disconnect.cold+0x43/0x6ed drivers/usb/core/hub.c:2226
#4: ffff88811dc22118 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:835 [inline]
#4: ffff88811dc22118 (&dev->mutex){....}-{3:3}, at: __device_driver_lock drivers/base/dd.c:1038 [inline]
#4: ffff88811dc22118 (&dev->mutex){....}-{3:3}, at: device_release_driver_internal+0xa0/0x700 drivers/base/dd.c:1232
#5: ffffffff88424310 (minor_rwsem#2){++++}-{3:3}, at: usb_deregister_dev+0xa5/0x320 drivers/usb/core/file.c:239
2 locks held by syz-executor.1/27847:
#0: ffffffff88424310 (minor_rwsem#2){++++}-{3:3}, at: usb_open+0x24/0x2e0 drivers/usb/core/file.c:39
#1: ffff8881120088d0 (&(sisusb->lock)){+.+.}-{3:3}, at: sisusb_open+0xb2/0x4d0 drivers/usb/misc/sisusbvga/sisusb.c:2396
1 lock held by syz-executor.5/28226:
#0: ffffffff88424310 (minor_rwsem#2){++++}-{3:3}, at: usb_open+0x24/0x2e0 drivers/usb/core/file.c:39
1 lock held by syz-executor.1/28797:
#0: ffffffff88424310 (minor_rwsem#2){++++}-{3:3}, at: usb_open+0x24/0x2e0 drivers/usb/core/file.c:39
3 locks held by udevd/29656:
#0: ffff888110637888 (&of->mutex){+.+.}-{3:3}, at: kernfs_file_read_iter fs/kernfs/file.c:253 [inline]
#0: ffff888110637888 (&of->mutex){+.+.}-{3:3}, at: kernfs_fop_read_iter+0x189/0x710 fs/kernfs/file.c:300
#1: ffff88812ec471d8 (kn->active#51){++++}-{0:0}, at: kernfs_file_read_iter fs/kernfs/file.c:254 [inline]
#1: ffff88812ec471d8 (kn->active#51){++++}-{0:0}, at: kernfs_fop_read_iter+0x1ac/0x710 fs/kernfs/file.c:300
#2: ffff88812e035190 (&dev->mutex){....}-{3:3}, at: device_lock_interruptible include/linux/device.h:840 [inline]
#2: ffff88812e035190 (&dev->mutex){....}-{3:3}, at: read_descriptors+0x3c/0x2c0 drivers/usb/core/sysfs.c:873
1 lock held by syz-executor.5/29734:
#0: ffffffff88424310 (minor_rwsem#2){++++}-{3:3}, at: usb_open+0x24/0x2e0 drivers/usb/core/file.c:39
1 lock held by syz-executor.1/29770:
#0: ffffffff88424310 (minor_rwsem#2){++++}-{3:3}, at: usb_open+0x24/0x2e0 drivers/usb/core/file.c:39
1 lock held by syz-executor.5/30230:
#0: ffffffff88424310 (minor_rwsem#2){++++}-{3:3}, at: usb_open+0x24/0x2e0 drivers/usb/core/file.c:39
1 lock held by syz-executor.5/30232:
#0: ffffffff88424310 (minor_rwsem#2){++++}-{3:3}, at: usb_open+0x24/0x2e0 drivers/usb/core/file.c:39
=============================================
NMI backtrace for cpu 0
CPU: 0 PID: 26 Comm: khungtaskd Not tainted 5.19.0-syzkaller-13666-gffcf9c5700e4 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022
Call Trace:
__dump_stack lib/dump_stack.c:88 [inline]
dump_stack_lvl+0xcd/0x134 lib/dump_stack.c:106
nmi_cpu_backtrace.cold+0x46/0x14f lib/nmi_backtrace.c:111
nmi_trigger_cpumask_backtrace+0x206/0x250 lib/nmi_backtrace.c:62
trigger_all_cpu_backtrace include/linux/nmi.h:148 [inline]
check_hung_uninterruptible_tasks kernel/hung_task.c:212 [inline]
watchdog+0xc18/0xf50 kernel/hung_task.c:369
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 skipped: idling at native_safe_halt arch/x86/include/asm/irqflags.h:51 [inline]
NMI backtrace for cpu 1 skipped: idling at arch_safe_halt arch/x86/include/asm/irqflags.h:89 [inline]
NMI backtrace for cpu 1 skipped: idling at acpi_safe_halt+0x6f/0xb0 drivers/acpi/processor_idle.c:112