INFO: task kworker/1:11:18474 blocked for more than 143 seconds.
      Not tainted 6.4.0-rc5-syzkaller-00313-g4c605260bc60 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/1:11    state:D
 stack:24736 pid:18474 ppid:2      flags:0x00004000
Workqueue: events switchdev_deferred_process_work
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5343 [inline]
 __schedule+0x187b/0x4900 kernel/sched/core.c:6669
 schedule+0xc3/0x180 kernel/sched/core.c:6745
 schedule_preempt_disabled+0x13/0x20 kernel/sched/core.c:6804
 __mutex_lock_common+0xe33/0x2530 kernel/locking/mutex.c:679
 __mutex_lock kernel/locking/mutex.c:747 [inline]
 mutex_lock_nested+0x1b/0x20 kernel/locking/mutex.c:799
 switchdev_deferred_process_work+0xe/0x20 net/switchdev/switchdev.c:75
 process_one_work+0x8a0/0x10e0 kernel/workqueue.c:2405
 worker_thread+0xa63/0x1210 kernel/workqueue.c:2552
 kthread+0x2b8/0x350 kernel/kthread.c:379
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:308
 </TASK>
INFO: task kworker/1:1:21964 blocked for more than 143 seconds.
      Not tainted 6.4.0-rc5-syzkaller-00313-g4c605260bc60 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/1:1     state:D
 stack:24408 pid:21964 ppid:2      flags:0x00004000
Workqueue: ipv6_addrconf addrconf_dad_work

Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5343 [inline]
 __schedule+0x187b/0x4900 kernel/sched/core.c:6669
 schedule+0xc3/0x180 kernel/sched/core.c:6745
 schedule_preempt_disabled+0x13/0x20 kernel/sched/core.c:6804
 __mutex_lock_common+0xe33/0x2530 kernel/locking/mutex.c:679
 __mutex_lock kernel/locking/mutex.c:747 [inline]
 mutex_lock_nested+0x1b/0x20 kernel/locking/mutex.c:799
 addrconf_dad_work+0xd0/0x16b0 net/ipv6/addrconf.c:4088
 process_one_work+0x8a0/0x10e0 kernel/workqueue.c:2405
 worker_thread+0xa63/0x1210 kernel/workqueue.c:2552
 kthread+0x2b8/0x350 kernel/kthread.c:379
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:308
 </TASK>

Showing all locks held in the system:
1 lock held by rcu_tasks_kthre/13:
 #0: ffffffff8cf276f0 (rcu_tasks.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x29/0xd20 kernel/rcu/tasks.h:518
1 lock held by rcu_tasks_trace/14:
 #0: ffffffff8cf27ab0 (rcu_tasks_trace.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x29/0xd20 kernel/rcu/tasks.h:518
3 locks held by kworker/1:0/22:
1 lock held by khungtaskd/28:
 #0: ffffffff8cf27520 (rcu_read_lock){....}-{1:2}
, at: rcu_lock_acquire+0x0/0x30
1 lock held by khugepaged/34:
 #0: 
ffffffff8cfd0bc8
 (
lock
#3
){+.+.}-{3:3}, at: __lru_add_drain_all+0x66/0x570 mm/swap.c:852
2 locks held by getty/4759:
 #0: ffff88814b323098 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x25/0x70 drivers/tty/tty_ldisc.c:243
 #1: ffffc900015802f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x6ab/0x1db0 drivers/tty/n_tty.c:2176
5 locks held by kworker/u4:9/17274:
 #0: ffff88801425b138 ((wq_completion)netns){+.+.}-{0:0}, at: process_one_work+0x77e/0x10e0 kernel/workqueue.c:2378
 #1: ffffc90014db7d20 (net_cleanup_work){+.+.}-{0:0}, at: process_one_work+0x7c8/0x10e0 kernel/workqueue.c:2380
 #2: ffffffff8e093bd0 (
pernet_ops_rwsem
){++++}-{3:3}
, at: cleanup_net+0xf5/0xb80 net/core/net_namespace.c:576
 #3: ffffffff8e09fe88 (rtnl_mutex){+.+.}-{3:3}
, at: default_device_exit_batch+0xdb/0x630 net/core/dev.c:11379
 #4: ffffffff8cf2cbf8 (rcu_state.exp_mutex){+.+.}-{3:3}, at: exp_funnel_lock kernel/rcu/tree_exp.h:325 [inline]
 #4: ffffffff8cf2cbf8 (rcu_state.exp_mutex){+.+.}-{3:3}, at: synchronize_rcu_expedited+0x46c/0x890 kernel/rcu/tree_exp.h:992
3 locks held by kworker/1:11/18474:
 #0: ffff888012470d38 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work+0x77e/0x10e0 kernel/workqueue.c:2378
 #1: ffffc9000a58fd20 (deferred_process_work){+.+.}-{0:0}, at: process_one_work+0x7c8/0x10e0 kernel/workqueue.c:2380
 #2: 
ffffffff8e09fe88
 (rtnl_mutex){+.+.}-{3:3}, at: switchdev_deferred_process_work+0xe/0x20 net/switchdev/switchdev.c:75
3 locks held by kworker/0:11/18479:
 #0: ffff888012470d38 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work+0x77e/0x10e0 kernel/workqueue.c:2378
 #1: ffffc9000a52fd20 ((linkwatch_work).work){+.+.}-{0:0}, at: process_one_work+0x7c8/0x10e0 kernel/workqueue.c:2380
 #2: ffffffff8e09fe88
 (rtnl_mutex){+.+.}-{3:3}
, at: linkwatch_event+0xe/0x60 net/core/link_watch.c:277
3 locks held by kworker/0:1/21176:
 #0: ffff888012471d38 ((wq_completion)events_power_efficient){+.+.}-{0:0}, at: process_one_work+0x77e/0x10e0 kernel/workqueue.c:2378
 #1: ffffc900051dfd20 ((reg_check_chans).work){+.+.}-{0:0}, at: process_one_work+0x7c8/0x10e0 kernel/workqueue.c:2380
 #2: 
ffffffff8e09fe88 (
rtnl_mutex
){+.+.}-{3:3}, at: reg_check_chans_work+0x91/0xda0 net/wireless/reg.c:2455
3 locks held by kworker/1:1/21964:
 #0: ffff888027eec538 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: process_one_work+0x77e/0x10e0 kernel/workqueue.c:2378
 #1: ffffc9001af77d20 ((work_completion)(&(&ifa->dad_work)->work)){+.+.}-{0:0}, at: process_one_work+0x7c8/0x10e0 kernel/workqueue.c:2380
 #2: ffffffff8e09fe88 (rtnl_mutex){+.+.}-{3:3}, at: addrconf_dad_work+0xd0/0x16b0 net/ipv6/addrconf.c:4088
3 locks held by kworker/0:4/21967:
 #0: ffff888027eec538 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: process_one_work+0x77e/0x10e0 kernel/workqueue.c:2378
 #1: ffffc9000313fd20
 (
(work_completion)(&(&ifa->dad_work)->work)){+.+.}-{0:0}, at: process_one_work+0x7c8/0x10e0 kernel/workqueue.c:2380
 #2: ffffffff8e09fe88 (rtnl_mutex){+.+.}-{3:3}, at: addrconf_dad_work+0xd0/0x16b0 net/ipv6/addrconf.c:4088
2 locks held by syz-executor.2/22283:
 #0: ffff88801e37c0e0 (&type->s_umount_key#51/1){+.+.}-{3:3}, at: alloc_super+0x217/0x930 fs/super.c:228
 #1: ffffffff8cf2cbf8 (rcu_state.exp_mutex){+.+.}-{3:3}, at: exp_funnel_lock kernel/rcu/tree_exp.h:293 [inline]
 #1: ffffffff8cf2cbf8 (rcu_state.exp_mutex){+.+.}-{3:3}, at: synchronize_rcu_expedited+0x3a3/0x890 kernel/rcu/tree_exp.h:992
1 lock held by dhcpcd/22305:
 #0: ffff88802ab8a130 (sk_lock-AF_PACKET){+.+.}-{0:0}, at: lock_sock include/net/sock.h:1709 [inline]
 #0: ffff88802ab8a130 (sk_lock-AF_PACKET){+.+.}-{0:0}, at: packet_do_bind+0x32/0xc10 net/packet/af_packet.c:3202
1 lock held by dhcpcd/22306:
 #0: ffff88806c6f0130 (sk_lock-AF_PACKET){+.+.}-{0:0}, at: lock_sock include/net/sock.h:1709 [inline]
 #0: ffff88806c6f0130 (sk_lock-AF_PACKET){+.+.}-{0:0}, at: packet_do_bind+0x32/0xc10 net/packet/af_packet.c:3202
1 lock held by dhcpcd/22307:
 #0: ffff88805b52a130 (sk_lock-AF_PACKET){+.+.}-{0:0}, at: lock_sock include/net/sock.h:1709 [inline]
 #0: ffff88805b52a130 (sk_lock-AF_PACKET){+.+.}-{0:0}, at: packet_do_bind+0x32/0xc10 net/packet/af_packet.c:3202
1 lock held by dhcpcd/22308:
 #0: ffff88805f2ba130
 (sk_lock-AF_PACKET){+.+.}-{0:0}, at: lock_sock include/net/sock.h:1709 [inline]
 (sk_lock-AF_PACKET){+.+.}-{0:0}, at: packet_do_bind+0x32/0xc10 net/packet/af_packet.c:3202
1 lock held by dhcpcd/22309:
 #0: 
ffff88802aeea130 (sk_lock-AF_PACKET){+.+.}-{0:0}, at: lock_sock include/net/sock.h:1709 [inline]
ffff88802aeea130 (sk_lock-AF_PACKET){+.+.}-{0:0}, at: packet_do_bind+0x32/0xc10 net/packet/af_packet.c:3202
1 lock held by dhcpcd/22310:
 #0: ffff888057fba130 (sk_lock-AF_PACKET){+.+.}-{0:0}, at: lock_sock include/net/sock.h:1709 [inline]
 #0: ffff888057fba130 (sk_lock-AF_PACKET){+.+.}-{0:0}, at: packet_do_bind+0x32/0xc10 net/packet/af_packet.c:3202

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

NMI backtrace for cpu 0
CPU: 0 PID: 28 Comm: khungtaskd Not tainted 6.4.0-rc5-syzkaller-00313-g4c605260bc60 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/25/2023
Call Trace:
 <TASK>
 __dump_stack lib/dump_stack.c:88 [inline]
 dump_stack_lvl+0x1e7/0x2d0 lib/dump_stack.c:106
 nmi_cpu_backtrace+0x498/0x4d0 lib/nmi_backtrace.c:113
 nmi_trigger_cpumask_backtrace+0x187/0x300 lib/nmi_backtrace.c:62
 trigger_all_cpu_backtrace include/linux/nmi.h:148 [inline]
 check_hung_uninterruptible_tasks kernel/hung_task.c:222 [inline]
 watchdog+0xec2/0xf00 kernel/hung_task.c:379
 kthread+0x2b8/0x350 kernel/kthread.c:379
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:308
 </TASK>
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 PID: 22 Comm: kworker/1:0 Not tainted 6.4.0-rc5-syzkaller-00313-g4c605260bc60 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/25/2023
Workqueue: events uhid_device_add_worker
RIP: 0010:check_kcov_mode kernel/kcov.c:173 [inline]
RIP: 0010:__sanitizer_cov_trace_pc+0x2e/0x60 kernel/kcov.c:207
Code: 48 8b 04 24 65 48 8b 0d 10 38 78 7e 65 8b 15 11 38 78 7e f7 c2 00 01 ff 00 74 11 f7 c2 00 01 00 00 74 35 83 b9 0c 16 00 00 00 <74> 2c 8b 91 e8 15 00 00 83 fa 02 75 21 48 8b 91 f0 15 00 00 48 8b
RSP: 0018:ffffc900001e0ad8 EFLAGS: 00000046
RAX: ffffffff815ab8c3 RBX: 0000000000000001 RCX: ffff88801727bb80
RDX: 0000000080000102 RSI: 0000000000000001 RDI: 0000000000000007
RBP: 0000000000000001 R08: ffffffff815ab8b9 R09: fffffbfff1cabaae
R10: 0000000000000000 R11: dffffc0000000001 R12: 0000000000000000
R13: ffff8880288b1000 R14: 1ffff1100511620b R15: dffffc0000000000
FS:  0000000000000000(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f56f26d76c0 CR3: 00000000295e1000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <NMI>
 </NMI>
 <IRQ>
 cpu_max_bits_warn include/linux/cpumask.h:143 [inline]
 cpumask_check include/linux/cpumask.h:150 [inline]
 cpumask_test_cpu include/linux/cpumask.h:504 [inline]
 cpu_online include/linux/cpumask.h:1082 [inline]
 trace_workqueue_activate_work+0x33/0x1c0 include/trace/events/workqueue.h:59
 __queue_work+0xa6c/0xf10 kernel/workqueue.c:1515
 call_timer_fn+0x178/0x580 kernel/time/timer.c:1700
 expire_timers kernel/time/timer.c:1746 [inline]
 __run_timers+0x67a/0x860 kernel/time/timer.c:2022
 run_timer_softirq+0x67/0xf0 kernel/time/timer.c:2035
 __do_softirq+0x2ab/0x908 kernel/softirq.c:571
 invoke_softirq kernel/softirq.c:445 [inline]
 __irq_exit_rcu+0x159/0x240 kernel/softirq.c:650
 irq_exit_rcu+0x9/0x20 kernel/softirq.c:662
 sysvec_apic_timer_interrupt+0x95/0xb0 arch/x86/kernel/apic/apic.c:1106
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:645
RIP: 0010:console_trylock_spinning+0x3b8/0x460
Code: ed 0f 84 48 ff ff ff e8 86 cd 1c 00 fb 31 db eb 45 e8 7c cd 1c 00 e8 e7 ec 40 09 4d 85 ed 74 cd e8 6d cd 1c 00 fb f3 0f 1e fa <bb> 01 00 00 00 48 c7 c7 20 32 e0 8c 31 f6 ba 01 00 00 00 31 c9 41
RSP: 0018:ffffc900001c71a0 EFLAGS: 00000293
RAX: ffffffff816eb233 RBX: 0000000000000000 RCX: ffff88801727bb80
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffffc900001c7268 R08: ffffffff816eb1ec R09: fffffbfff206546f
R10: 0000000000000000 R11: dffffc0000000001 R12: 1ffff92000038e34
R13: 0000000000000200 R14: 0000000000000046 R15: dffffc0000000000
 vprintk_emit+0xbc/0x1f0 kernel/printk/printk.c:2306
 dev_vprintk_emit+0x2ae/0x330 drivers/base/core.c:4840
 dev_printk_emit+0xdd/0x120 drivers/base/core.c:4851
 _dev_warn+0x122/0x170 drivers/base/core.c:4907
 hid_parser_main+0x71b/0xaa0 drivers/hid/hid-core.c:632
 hid_open_report+0xaf0/0x1490 drivers/hid/hid-core.c:1269
 hid_parse include/linux/hid.h:1090 [inline]
 hid_generic_probe+0x3d/0x80 drivers/hid/hid-generic.c:63
 hid_device_probe+0x29c/0x3a0 drivers/hid/hid-core.c:2633
 really_probe+0x294/0xc30 drivers/base/dd.c:658
 __driver_probe_device+0x1a2/0x3d0 drivers/base/dd.c:800
 driver_probe_device+0x50/0x420 drivers/base/dd.c:830
 __device_attach_driver+0x2d3/0x520 drivers/base/dd.c:958
 bus_for_each_drv+0x24a/0x2d0 drivers/base/bus.c:457
 __device_attach+0x32f/0x510 drivers/base/dd.c:1030
 bus_probe_device+0x185/0x260 drivers/base/bus.c:532
 device_add+0xb75/0xf60 drivers/base/core.c:3625
 hid_add_device+0x3a9/0x510 drivers/hid/hid-core.c:2785
 uhid_device_add_worker+0x44/0xf0 drivers/hid/uhid.c:73
 process_one_work+0x8a0/0x10e0 kernel/workqueue.c:2405
 worker_thread+0xa63/0x1210 kernel/workqueue.c:2552
 kthread+0x2b8/0x350 kernel/kthread.c:379
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:308
 </TASK>