INFO: task kworker/1:3:5272 blocked for more than 143 seconds.
Not tainted 6.2.0-rc3-syzkaller-00011-gc2fb9a214da1 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/1:3 state:D stack:23384 pid:5272 ppid:2 flags:0x00004000
Workqueue: usb_hub_wq hub_event
Call Trace:
context_switch kernel/sched/core.c:5244 [inline]
__schedule+0xa20/0x27c0 kernel/sched/core.c:6555
schedule+0xda/0x1b0 kernel/sched/core.c:6631
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:1253 [inline]
device_release_driver_internal+0x4a1/0x700 drivers/base/dd.c:1279
bus_remove_device+0x2e3/0x590 drivers/base/bus.c:529
device_del+0x4f3/0xc80 drivers/base/core.c:3666
usb_disable_device+0x356/0x7a0 drivers/usb/core/message.c:1420
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:308
INFO: task syz-executor.2:17731 blocked for more than 143 seconds.
Not tainted 6.2.0-rc3-syzkaller-00011-gc2fb9a214da1 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.2 state:D stack:28984 pid:17731 ppid:2476 flags:0x00000004
Call Trace:
context_switch kernel/sched/core.c:5244 [inline]
__schedule+0xa20/0x27c0 kernel/sched/core.c:6555
schedule+0xda/0x1b0 kernel/sched/core.c:6631
schedule_preempt_disabled+0xf/0x20 kernel/sched/core.c:6690
__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+0x1bbc/0x2a50 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: 0033:0x7f15814d8254
RSP: 002b:00007f1580898ca0 EFLAGS: 00000293 ORIG_RAX: 0000000000000101
RAX: ffffffffffffffda RBX: 00007f1581645f80 RCX: 00007f15814d8254
RDX: 0000000000000002 RSI: 00007f1580898d40 RDI: 00000000ffffff9c
RBP: 00007f1580898d40 R08: 0000000000000000 R09: 000000000000000f
R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000002
R13: 00007fff2d7a475f R14: 00007f1580899300 R15: 0000000000022000
Showing all locks held in the system:
1 lock held by rcu_tasks_kthre/11:
#0: ffffffff87a97090 (rcu_tasks.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x26/0xc70 kernel/rcu/tasks.h:507
6 locks held by kworker/0:1/12:
#0: ffff888109018138 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: arch_atomic64_set arch/x86/include/asm/atomic64_64.h:34 [inline]
#0: ffff888109018138 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: arch_atomic_long_set include/linux/atomic/atomic-long.h:41 [inline]
#0: ffff888109018138 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: atomic_long_set include/linux/atomic/atomic-instrumented.h:1280 [inline]
#0: ffff888109018138 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: set_work_data kernel/workqueue.c:636 [inline]
#0: ffff888109018138 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: set_work_pool_and_clear_pending kernel/workqueue.c:663 [inline]
#0: ffff888109018138 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: process_one_work+0x86d/0x1710 kernel/workqueue.c:2260
#1: ffffc900000cfda8 ((work_completion)(&hub->events)){+.+.}-{0:0}, at: process_one_work+0x8a1/0x1710 kernel/workqueue.c:2264
#2: ffff88810eb56190 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:831 [inline]
#2: ffff88810eb56190 (&dev->mutex){....}-{3:3}, at: hub_event+0x1bc/0x4810 drivers/usb/core/hub.c:5737
#3: ffff888116196190 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:831 [inline]
#3: ffff888116196190 (&dev->mutex){....}-{3:3}, at: __device_attach+0x76/0x530 drivers/base/dd.c:983
#4: ffff88811b449118 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:831 [inline]
#4: ffff88811b449118 (&dev->mutex){....}-{3:3}, at: __device_attach+0x76/0x530 drivers/base/dd.c:983
#5: ffffffff884277b0 (minor_rwsem){++++}-{3:3}, at: usb_register_dev drivers/usb/core/file.c:187 [inline]
#5: ffffffff884277b0 (minor_rwsem){++++}-{3:3}, at: usb_register_dev+0x198/0x7e0 drivers/usb/core/file.c:156
3 locks held by kworker/1:0/20:
1 lock held by khungtaskd/26:
#0: ffffffff87a97be0 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x53/0x260 kernel/locking/lockdep.c:6494
2 locks held by getty/2406:
#0: ffff8881008d9098 (&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/5258:
#0: ffff888138d38c88 (&of->mutex){+.+.}-{3:3}, at: kernfs_file_read_iter fs/kernfs/file.c:240 [inline]
#0: ffff888138d38c88 (&of->mutex){+.+.}-{3:3}, at: kernfs_fop_read_iter+0x18a/0x790 fs/kernfs/file.c:280
#1: ffff88811284c748 (kn->active#27){++++}-{0:0}, at: kernfs_file_read_iter fs/kernfs/file.c:241 [inline]
#1: ffff88811284c748 (kn->active#27){++++}-{0:0}, at: kernfs_fop_read_iter+0x1ad/0x790 fs/kernfs/file.c:280
#2: ffff888108e89190 (&dev->mutex){....}-{3:3}, at: device_lock_interruptible include/linux/device.h:836 [inline]
#2: ffff888108e89190 (&dev->mutex){....}-{3:3}, at: read_descriptors+0x3c/0x2c0 drivers/usb/core/sysfs.c:874
3 locks held by udevd/5260:
#0: ffff888118c9a888 (&of->mutex){+.+.}-{3:3}, at: kernfs_file_read_iter fs/kernfs/file.c:240 [inline]
#0: ffff888118c9a888 (&of->mutex){+.+.}-{3:3}, at: kernfs_fop_read_iter+0x18a/0x790 fs/kernfs/file.c:280
#1: ffff88813c1bdbd0 (kn->active#27){++++}-{0:0}, at: kernfs_file_read_iter fs/kernfs/file.c:241 [inline]
#1: ffff88813c1bdbd0 (kn->active#27){++++}-{0:0}, at: kernfs_fop_read_iter+0x1ad/0x790 fs/kernfs/file.c:280
#2: ffff888116196190 (&dev->mutex){....}-{3:3}, at: device_lock_interruptible include/linux/device.h:836 [inline]
#2: ffff888116196190 (&dev->mutex){....}-{3:3}, at: read_descriptors+0x3c/0x2c0 drivers/usb/core/sysfs.c:874
6 locks held by kworker/1:3/5272:
#0: ffff888109018138 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: arch_atomic64_set arch/x86/include/asm/atomic64_64.h:34 [inline]
#0: ffff888109018138 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: arch_atomic_long_set include/linux/atomic/atomic-long.h:41 [inline]
#0: ffff888109018138 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: atomic_long_set include/linux/atomic/atomic-instrumented.h:1280 [inline]
#0: ffff888109018138 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: set_work_data kernel/workqueue.c:636 [inline]
#0: ffff888109018138 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: set_work_pool_and_clear_pending kernel/workqueue.c:663 [inline]
#0: ffff888109018138 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: process_one_work+0x86d/0x1710 kernel/workqueue.c:2260
#1: ffffc90001cbfda8 ((work_completion)(&hub->events)){+.+.}-{0:0}, at: process_one_work+0x8a1/0x1710 kernel/workqueue.c:2264
#2: ffff88810e117190 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:831 [inline]
#2: ffff88810e117190 (&dev->mutex){....}-{3:3}, at: hub_event+0x1bc/0x4810 drivers/usb/core/hub.c:5737
#3: ffff888108e89190 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:831 [inline]
#3: ffff888108e89190 (&dev->mutex){....}-{3:3}, at: usb_disconnect.cold+0x43/0x6ed drivers/usb/core/hub.c:2226
#4: ffff888108fbf118 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:831 [inline]
#4: ffff888108fbf118 (&dev->mutex){....}-{3:3}, at: __device_driver_lock drivers/base/dd.c:1073 [inline]
#4: ffff888108fbf118 (&dev->mutex){....}-{3:3}, at: device_release_driver_internal+0xa0/0x700 drivers/base/dd.c:1276
#5: ffffffff884277b0 (minor_rwsem){++++}-{3:3}, at: usb_deregister_dev+0xa5/0x320 drivers/usb/core/file.c:239
3 locks held by kworker/1:6/12114:
2 locks held by syz-executor.5/17741:
#0: ffffffff884277b0 (minor_rwsem){++++}-{3:3}, at: usb_open+0x24/0x2e0 drivers/usb/core/file.c:39
#1: ffff888138bbf8d0 (&(sisusb->lock)){+.+.}-{3:3}, at: sisusb_open+0xb2/0x4d0 drivers/usb/misc/sisusbvga/sisusbvga.c:2213
2 locks held by syz-executor.2/17731:
#0: ffffffff884277b0 (minor_rwsem){++++}-{3:3}, at: usb_open+0x24/0x2e0 drivers/usb/core/file.c:39
#1: ffff888138bbf8d0 (&(sisusb->lock)){+.+.}-{3:3}, at: sisusb_open+0xb2/0x4d0 drivers/usb/misc/sisusbvga/sisusbvga.c:2213
=============================================
NMI backtrace for cpu 1
CPU: 1 PID: 26 Comm: khungtaskd Not tainted 6.2.0-rc3-syzkaller-00011-gc2fb9a214da1 #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:308
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 PID: 19515 Comm: syz-executor.2 Not tainted 6.2.0-rc3-syzkaller-00011-gc2fb9a214da1 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022
RIP: 0010:preempt_count arch/x86/include/asm/preempt.h:27 [inline]
RIP: 0010:check_kcov_mode kernel/kcov.c:173 [inline]
RIP: 0010:__sanitizer_cov_trace_pc+0x0/0x60 kernel/kcov.c:207
Code: 48 89 ef 5d e9 31 ef 1e 00 5d be 03 00 00 00 e9 66 50 d1 00 66 0f 1f 44 00 00 48 8b be a8 01 00 00 e8 b4 ff ff ff 31 c0 c3 90 <65> 8b 05 81 1b bc 7e 89 c1 48 8b 34 24 81 e1 00 01 00 00 65 48 8b
RSP: 0018:ffffc900130c7438 EFLAGS: 00000016
RAX: 0000000000000002 RBX: 0000000000000063 RCX: ffffffff85ce3171
RDX: ffff88810fa88000 RSI: 0000000000000000 RDI: 0000000000000001
RBP: ffffc900130c7558 R08: 0000000000000001 R09: 000000000000002e
R10: 0000000000000063 R11: 0000000000000000 R12: ffffffff864886a1
R13: ffffffff864886a0 R14: 1ffff92002618e8b R15: 0000000000000063
FS: 00007f16ee261700(0000) GS:ffff8881f6800000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f16eeec0b10 CR3: 000000013a1f6000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
format_decode+0x2ff/0xad0 lib/vsprintf.c:2590
vsnprintf+0x155/0x14f0 lib/vsprintf.c:2748
snprintf+0xbb/0xf0 lib/vsprintf.c:2931
print_caller kernel/printk/printk.c:1366 [inline]
info_print_prefix+0x11c/0x340 kernel/printk/printk.c:1385
record_print_text+0x14d/0x3e0 kernel/printk/printk.c:1432
console_emit_next_record.constprop.0+0x714/0x890 kernel/printk/printk.c:2806
console_flush_all+0x547/0x6e0 kernel/printk/printk.c:2887
console_unlock+0xb4/0x1f0 kernel/printk/printk.c:2964
vprintk_emit+0x1b9/0x5f0 kernel/printk/printk.c:2357
dev_vprintk_emit+0x36e/0x3b2 drivers/base/core.c:4698
dev_printk_emit+0xba/0xf1 drivers/base/core.c:4709
__dev_printk+0xcf/0xf5 drivers/base/core.c:4721
_dev_err+0xd7/0x109 drivers/base/core.c:4764
raw_ioctl_run drivers/usb/gadget/legacy/raw_gadget.c:550 [inline]
raw_ioctl.cold+0x1ff/0x24d drivers/usb/gadget/legacy/raw_gadget.c:1253
vfs_ioctl fs/ioctl.c:51 [inline]
__do_sys_ioctl fs/ioctl.c:870 [inline]
__se_sys_ioctl fs/ioctl.c:856 [inline]
__x64_sys_ioctl+0x193/0x200 fs/ioctl.c:856
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: 0033:0x7f16eeeedeb7
Code: 3c 1c 48 f7 d8 49 39 c4 72 b8 e8 c4 57 02 00 85 c0 78 bd 48 83 c4 08 4c 89 e0 5b 41 5c c3 0f 1f 44 00 00 b8 10 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f16ee25f098 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007f16ee260110 RCX: 00007f16eeeedeb7
RDX: 0000000000000000 RSI: 0000000000005501 RDI: 0000000000000003
RBP: 0000000000000003 R08: 000000000000ffff R09: 000000000000000b
R10: 00007f16ee25f140 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00000000200009c0 R15: 0000000000000000