INFO: task syz.0.3633:16261 blocked for more than 143 seconds.
      Not tainted 6.10.0-rc7-syzkaller-00003-g4376e966ecb7 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.0.3633      state:D
 stack:24672 pid:16261 tgid:16261 ppid:15640  flags:0x00000004
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5408 [inline]
 __schedule+0x17e8/0x4a20 kernel/sched/core.c:6745
 __schedule_loop kernel/sched/core.c:6822 [inline]
 schedule+0x14b/0x320 kernel/sched/core.c:6837
 schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6894
 __mutex_lock_common kernel/locking/mutex.c:684 [inline]
 __mutex_lock+0x6a4/0xd70 kernel/locking/mutex.c:752
 device_lock include/linux/device.h:1009 [inline]
 usbdev_release+0x7a/0x7a0 drivers/usb/core/devio.c:1096
 __fput+0x24c/0x8a0 fs/file_table.c:422
 task_work_run+0x251/0x310 kernel/task_work.c:180
 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+0x168/0x360 kernel/entry/common.c:218
 do_syscall_64+0x100/0x230 arch/x86/entry/common.c:89
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fcaee175bd9
RSP: 002b:00007fff8a7aa598 EFLAGS: 00000246
 ORIG_RAX: 00000000000001b4
RAX: 0000000000000000 RBX: 00007fcaee305a60 RCX: 00007fcaee175bd9
RDX: 0000000000000000 RSI: 000000000000001e RDI: 0000000000000003
RBP: 00007fcaee305a60 R08: 00007fcaed801000 R09: 0000000a8a7aa8bf
R10: 00000000005f7e94 R11: 0000000000000246 R12: 00000000000c41b9
R13: 0000000000000032 R14: 00007fcaee305a60 R15: 00007fcaee304038
 </TASK>

Showing all locks held in the system:
6 locks held by kworker/0:0/8:
1 lock held by khungtaskd/30:
 #0: 
ffffffff8e333f20
 (
rcu_read_lock
){....}-{1:2}, at: rcu_lock_acquire include/linux/rcupdate.h:329 [inline]
){....}-{1:2}, at: rcu_read_lock include/linux/rcupdate.h:781 [inline]
){....}-{1:2}, at: debug_show_all_locks+0x55/0x2a0 kernel/locking/lockdep.c:6614
3 locks held by kworker/u8:2/35:
 #0: ffff88802a146148 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3223 [inline]
 #0: ffff88802a146148 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: process_scheduled_works+0x90a/0x1830 kernel/workqueue.c:3329
 #1: ffffc90000ab7d00 ((work_completion)(&(&net->ipv6.addr_chk_work)->work)){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3224 [inline]
 #1: ffffc90000ab7d00 ((work_completion)(&(&net->ipv6.addr_chk_work)->work)){+.+.}-{0:0}, at: process_scheduled_works+0x945/0x1830 kernel/workqueue.c:3329
 #2: 
ffffffff8f5e6dc8 (rtnl_mutex
){+.+.}-{3:3}, at: addrconf_verify_work+0x19/0x30 net/ipv6/addrconf.c:4733
3 locks held by kworker/1:2/57:
 #0: 
ffff888015078948
 (
(wq_completion)events
){+.+.}-{0:0}
, at: process_one_work kernel/workqueue.c:3223 [inline]
, at: process_scheduled_works+0x90a/0x1830 kernel/workqueue.c:3329
 #1: 
ffffc9000132fd00 (deferred_process_work){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3224 [inline]
ffffc9000132fd00 (deferred_process_work){+.+.}-{0:0}, at: process_scheduled_works+0x945/0x1830 kernel/workqueue.c:3329
 #2: 
ffffffff8f5e6dc8
 (rtnl_mutex){+.+.}-{3:3}, at: switchdev_deferred_process_work+0xe/0x20 net/switchdev/switchdev.c:104
5 locks held by kworker/u8:5/1102:
 #0: ffff888015ed5948
 ((wq_completion)netns){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3223 [inline]
 ((wq_completion)netns){+.+.}-{0:0}, at: process_scheduled_works+0x90a/0x1830 kernel/workqueue.c:3329
 #1: ffffc90004317d00 (net_cleanup_work){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3224 [inline]
 #1: ffffc90004317d00 (net_cleanup_work){+.+.}-{0:0}, at: process_scheduled_works+0x945/0x1830 kernel/workqueue.c:3329
 #2: ffffffff8f5da590 (pernet_ops_rwsem){++++}-{3:3}, at: cleanup_net+0x16a/0xcc0 net/core/net_namespace.c:594
 #3: 
ffffffff8f5e6dc8
 (
rtnl_mutex){+.+.}-{3:3}, at: default_device_exit_batch+0xe9/0xa90 net/core/dev.c:11746
 #4: 
ffffffff8e1ce5b0 (cpu_hotplug_lock){++++}-{0:0}, at: flush_all_backlogs net/core/dev.c:5984 [inline]
ffffffff8e1ce5b0 (cpu_hotplug_lock){++++}-{0:0}, at: unregister_netdevice_many_notify+0x607/0x16b0 net/core/dev.c:11201
2 locks held by kworker/0:2/1143:
2 locks held by getty/4849:
 #0: 
ffff88802ab130a0
 (&tty->ldisc_sem
){++++}-{0:0}
, at: tty_ldisc_ref_wait+0x25/0x70 drivers/tty/tty_ldisc.c:243
 #1: 
ffffc900031332f0
 (&ldata->atomic_read_lock
){+.+.}-{3:3}, at: n_tty_read+0x6b5/0x1e10 drivers/tty/n_tty.c:2211
3 locks held by kworker/1:3/5159:
 #0: 
ffff888015078948
 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3223 [inline]
 ((wq_completion)events){+.+.}-{0:0}, at: process_scheduled_works+0x90a/0x1830 kernel/workqueue.c:3329
 #1: 
ffffc9000327fd00 ((linkwatch_work).work){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3224 [inline]
ffffc9000327fd00 ((linkwatch_work).work){+.+.}-{0:0}, at: process_scheduled_works+0x945/0x1830 kernel/workqueue.c:3329
 #2: 
ffffffff8f5e6dc8 (rtnl_mutex){+.+.}-{3:3}, at: linkwatch_event+0xe/0x60 net/core/link_watch.c:276
1 lock held by syz.0.3633/16261:
 #0: ffff888023959190
 (
&dev->mutex
){....}-{3:3}
, at: device_lock include/linux/device.h:1009 [inline]
, at: usbdev_release+0x7a/0x7a0 drivers/usb/core/devio.c:1096
2 locks held by syz.4.3653/16312:
 #0: 
ffffffff8e8a4c88
 (
uuid_mutex
){+.+.}-{3:3}
, at: btrfs_get_tree_super fs/btrfs/super.c:1810 [inline]
, at: btrfs_get_tree+0x2dc/0x1920 fs/btrfs/super.c:2089
 #1: 
ffffffff8e3eca88 (lock#3){+.+.}-{3:3}, at: __lru_add_drain_all+0x66/0x560 mm/swap.c:857
9 locks held by syz.1.3674/16371:
1 lock held by syz-executor/16392:
 #0: ffffffff8f5e6dc8 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:79 [inline]
 #0: ffffffff8f5e6dc8 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x842/0x1180 net/core/rtnetlink.c:6632
1 lock held by syz-executor/16395:
 #0: 
ffffffff8f5e6dc8
 (
rtnl_mutex
){+.+.}-{3:3}
, at: rtnl_lock net/core/rtnetlink.c:79 [inline]
, at: rtnetlink_rcv_msg+0x842/0x1180 net/core/rtnetlink.c:6632
1 lock held by syz-executor/16401:
 #0: 
ffffffff8f5e6dc8
 (
rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:79 [inline]
rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x842/0x1180 net/core/rtnetlink.c:6632
1 lock held by syz-executor/16405:
 #0: 
ffffffff8f5e6dc8
 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:79 [inline]
 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x842/0x1180 net/core/rtnetlink.c:6632
1 lock held by syz-executor/16410:
 #0: ffffffff8f5e6dc8 (rtnl_mutex){+.+.}-{3:3}, at: __tun_chr_ioctl+0x48f/0x2400 drivers/net/tun.c:3110
1 lock held by syz-executor/16413:
 #0: ffffffff8f5e6dc8
 (
rtnl_mutex
){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:79 [inline]
){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x842/0x1180 net/core/rtnetlink.c:6632
1 lock held by syz-executor/16425:
 #0: ffffffff8f5e6dc8 (rtnl_mutex){+.+.}-{3:3}
, at: rtnl_lock net/core/rtnetlink.c:79 [inline]
, at: rtnetlink_rcv_msg+0x842/0x1180 net/core/rtnetlink.c:6632
1 lock held by syz-executor/16428:
 #0: 
ffffffff8f5e6dc8
 (
rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:79 [inline]
rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x842/0x1180 net/core/rtnetlink.c:6632
1 lock held by syz-executor/16431:
 #0: ffffffff8f5e6dc8 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:79 [inline]
 #0: ffffffff8f5e6dc8 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x842/0x1180 net/core/rtnetlink.c:6632
1 lock held by syz-executor/16434:
 #0: 
ffffffff8f5e6dc8
 (
rtnl_mutex
){+.+.}-{3:3}
, at: rtnl_lock net/core/rtnetlink.c:79 [inline]
, at: rtnetlink_rcv_msg+0x842/0x1180 net/core/rtnetlink.c:6632
1 lock held by syz-executor/16437:
 #0: 
ffffffff8f5e6dc8
 (
rtnl_mutex
){+.+.}-{3:3}
, at: rtnl_lock net/core/rtnetlink.c:79 [inline]
, at: rtnetlink_rcv_msg+0x842/0x1180 net/core/rtnetlink.c:6632

=============================================

NMI backtrace for cpu 1
CPU: 1 PID: 30 Comm: khungtaskd Not tainted 6.10.0-rc7-syzkaller-00003-g4376e966ecb7 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/07/2024
Call Trace:
 <TASK>
 __dump_stack lib/dump_stack.c:88 [inline]
 dump_stack_lvl+0x241/0x360 lib/dump_stack.c:114
 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+0xfde/0x1020 kernel/hung_task.c:379
 kthread+0x2f2/0x390 kernel/kthread.c:389
 ret_from_fork+0x4d/0x80 arch/x86/kernel/process.c:147
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
 </TASK>
Sending NMI from CPU 1 to CPUs 0:
yealink 5-1:36.0: urb_irq_callback - urb status -71
yealink 5-1:36.0: unexpected response 0
yealink 5-1:36.0: urb_ctl_callback - urb status -71
yealink 5-1:36.0: urb_irq_callback - urb status -71
yealink 5-1:36.0: unexpected response 0
yealink 5-1:36.0: urb_ctl_callback - urb status -71
NMI backtrace for cpu 0
CPU: 0 PID: 16371 Comm: syz.1.3674 Not tainted 6.10.0-rc7-syzkaller-00003-g4376e966ecb7 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/07/2024
RIP: 0010:vsnprintf+0x851/0x1da0 lib/vsprintf.c:2857
Code: e8 14 13 17 f6 48 8b 44 24 20 48 c1 e8 03 42 80 3c 28 00 74 0a 48 8b 7c 24 20 e8 1a c8 7c f6 89 d8 48 8b 54 24 10 48 03 5a 10 <44> 8d 68 08 48 b8 00 00 00 00 00 fc ff df 41 0f b6 04 07 84 c0 0f
RSP: 0018:ffffc90000006020 EFLAGS: 00000082
RAX: 0000000000000010 RBX: ffffc90000006140 RCX: ffff888064cc5a00
RDX: ffffc90000006180 RSI: 0000000000000010 RDI: 0000000000000029
RBP: ffffc90000006110 R08: ffffffff8b7f148d R09: ffffffff8b7f0df4
R10: 0000000000000012 R11: ffff888064cc5a00 R12: ffffffff8bcb8045
R13: dffffc0000000000 R14: ffff0a0000000509 R15: 1ffff92000000c30
FS:  0000000000000000(0000) GS:ffff8880b9400000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b2ca1cff8 CR3: 000000000e132000 CR4: 0000000000350ef0
Call Trace:
 <NMI>
 </NMI>
 <IRQ>
 sprintf+0xda/0x120 lib/vsprintf.c:3028
 print_time kernel/printk/printk.c:1330 [inline]
 info_print_prefix+0x16b/0x310 kernel/printk/printk.c:1356
 record_print_text kernel/printk/printk.c:1405 [inline]
 printk_get_next_message+0x6da/0xbe0 kernel/printk/printk.c:2840
 console_emit_next_record kernel/printk/printk.c:2880 [inline]
 console_flush_all+0x410/0xfd0 kernel/printk/printk.c:2979
 console_unlock+0x13b/0x4d0 kernel/printk/printk.c:3048
 vprintk_emit+0x5a6/0x770 kernel/printk/printk.c:2348
 dev_vprintk_emit+0x2ae/0x330 drivers/base/core.c:4909
 dev_printk_emit+0xdd/0x120 drivers/base/core.c:4920
 _dev_err+0x122/0x170 drivers/base/core.c:4975
 urb_ctl_callback+0x1d3/0x290 drivers/input/misc/yealink.c:454
 __usb_hcd_giveback_urb+0x42e/0x6e0 drivers/usb/core/hcd.c:1650
 dummy_timer+0x830/0x45d0 drivers/usb/gadget/udc/dummy_hcd.c:1987
 __run_hrtimer kernel/time/hrtimer.c:1689 [inline]
 __hrtimer_run_queues+0x59d/0xd50 kernel/time/hrtimer.c:1753
 hrtimer_interrupt+0x396/0x990 kernel/time/hrtimer.c:1815
 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1032 [inline]
 __sysvec_apic_timer_interrupt+0x112/0x3f0 arch/x86/kernel/apic/apic.c:1049
 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1043 [inline]
 sysvec_apic_timer_interrupt+0x52/0xc0 arch/x86/kernel/apic/apic.c:1043
 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702
RIP: 0010:skb_zcopy include/linux/skbuff.h:1702 [inline]
RIP: 0010:skb_orphan_frags_rx include/linux/skbuff.h:3240 [inline]
RIP: 0010:deliver_skb net/core/dev.c:2232 [inline]
RIP: 0010:deliver_ptype_list_skb net/core/dev.c:2250 [inline]
RIP: 0010:__netif_receive_skb_core+0x33ca/0x4420 net/core/dev.c:5576
Code: 49 01 c4 4c 89 e0 48 c1 e8 03 0f b6 04 18 84 c0 0f 85 0a 02 00 00 41 0f b6 1c 24 89 de 83 e6 01 31 ff e8 69 1d 3c f8 f6 c3 01 <75> 25 e8 5f 1a 3c f8 eb 51 e8 58 1a 3c f8 4d 89 ee e9 08 01 00 00
RSP: 0018:ffffc900000073c0 EFLAGS: 00000246
RAX: 0000000080000101 RBX: 0000000000000000 RCX: dffffc0000000000
RDX: ffff888064cc5a00 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffffc900000075f0 R08: ffffffff895a0d47 R09: ffffffff8959dec9
R10: 0000000000000002 R11: ffff888064cc5a00 R12: ffff8880477c9ac0
R13: ffff88804da80900 R14: ffffffff8faed5b0 R15: ffffffff8faed5f0
 __netif_receive_skb_list_core+0x2b7/0x980 net/core/dev.c:5701
 __netif_receive_skb_list net/core/dev.c:5768 [inline]
 netif_receive_skb_list_internal+0xa51/0xe30 net/core/dev.c:5860
 gro_normal_list include/net/gro.h:515 [inline]
 napi_complete_done+0x310/0x8e0 net/core/dev.c:6203
 virtqueue_napi_complete drivers/net/virtio_net.c:655 [inline]
 virtnet_poll+0xd68/0x18c0 drivers/net/virtio_net.c:2388
 __napi_poll+0xcd/0x490 net/core/dev.c:6722
 napi_poll net/core/dev.c:6791 [inline]
 net_rx_action+0x7bb/0x10a0 net/core/dev.c:6907
 handle_softirqs+0x2c6/0x970 kernel/softirq.c:554
 __do_softirq kernel/softirq.c:588 [inline]
 invoke_softirq kernel/softirq.c:428 [inline]
 __irq_exit_rcu+0xf4/0x1c0 kernel/softirq.c:637
 irq_exit_rcu+0x9/0x30 kernel/softirq.c:649
 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1043 [inline]
 sysvec_apic_timer_interrupt+0xa6/0xc0 arch/x86/kernel/apic/apic.c:1043
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702
RIP: 0010:__raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:152 [inline]
RIP: 0010:_raw_spin_unlock_irqrestore+0xd8/0x140 kernel/locking/spinlock.c:194
Code: 9c 8f 44 24 20 42 80 3c 23 00 74 08 4c 89 f7 e8 8e 17 6b f6 f6 44 24 21 02 75 52 41 f7 c7 00 02 00 00 74 01 fb bf 01 00 00 00 <e8> 53 d8 d4 f5 65 8b 05 64 0f 73 74 85 c0 74 43 48 c7 04 24 0e 36
RSP: 0018:ffffc90009c372e0 EFLAGS: 00000206
RAX: 2e7c21444185eb00 RBX: 1ffff92001386e60 RCX: ffffffff8172da6a
RDX: dffffc0000000000 RSI: ffffffff8bcabb40 RDI: 0000000000000001
RBP: ffffc90009c37370 R08: ffffffff92fa75b7 R09: 1ffffffff25f4eb6
R10: dffffc0000000000 R11: fffffbfff25f4eb7 R12: dffffc0000000000
R13: 1ffff92001386e5c R14: ffffc90009c37300 R15: 0000000000000246
 spin_unlock_irqrestore include/linux/spinlock.h:406 [inline]
 unlock_page_lruvec_irqrestore include/linux/memcontrol.h:1636 [inline]
 folios_put_refs+0x8d5/0xa60 mm/swap.c:1016
 free_pages_and_swap_cache+0x2ea/0x690 mm/swap_state.c:329
 __tlb_batch_free_encoded_pages mm/mmu_gather.c:136 [inline]
 tlb_batch_pages_flush mm/mmu_gather.c:149 [inline]
 tlb_flush_mmu_free mm/mmu_gather.c:366 [inline]
 tlb_flush_mmu+0x3a3/0x680 mm/mmu_gather.c:373
 tlb_finish_mmu+0xd4/0x200 mm/mmu_gather.c:465
 exit_mmap+0x44f/0xc80 mm/mmap.c:3354
 __mmput+0x115/0x3c0 kernel/fork.c:1346
 exit_mm+0x220/0x310 kernel/exit.c:567
 do_exit+0x9aa/0x27e0 kernel/exit.c:863
 do_group_exit+0x207/0x2c0 kernel/exit.c:1025
 get_signal+0x16a1/0x1740 kernel/signal.c:2909
 arch_do_signal_or_restart+0x96/0x860 arch/x86/kernel/signal.c:310
 exit_to_user_mode_loop kernel/entry/common.c:111 [inline]
 exit_to_user_mode_prepare include/linux/entry-common.h:328 [inline]
 irqentry_exit_to_user_mode+0x79/0x270 kernel/entry/common.c:231
 exc_page_fault+0x590/0x8c0 arch/x86/mm/fault.c:1542
 asm_exc_page_fault+0x26/0x30 arch/x86/include/asm/idtentry.h:623
RIP: 0033:0x7f136f055986
Code: Unable to access opcode bytes at 0x7f136f05595c.
RSP: 002b:00007ffc02b13b00 EFLAGS: 00010202
RAX: 0000000000003008 RBX: 00007f136fe35720 RCX: 0000000000000000
RDX: 0000001b2ca1d000 RSI: 0000000000000008 RDI: 00007f136fe35720
RBP: ffffffff84aedfbd R08: 00007f136e801068 R09: 00007f136e801000
R10: 0000000000000008 R11: 00000000813642c9 R12: 0000000000000041
R13: 00007f136f303ff8 R14: 0000000000000024 R15: ffffffffffffd000
 </TASK>
yealink 5-1:36.0: urb_irq_callback - urb status -71
yealink 5-1:36.0: unexpected response 0
yealink 5-1:36.0: urb_ctl_callback - urb status -71