INFO: task syz.1.3030:14117 blocked for more than 143 seconds.
      Not tainted 6.11.0-rc1-next-20240729-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.1.3030      state:D stack:26704 pid:14117 tgid:14115 ppid:13290  flags:0x00000004
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5239 [inline]
 __schedule+0x1800/0x4a60 kernel/sched/core.c:6603
 __schedule_loop kernel/sched/core.c:6680 [inline]
 schedule+0x14b/0x320 kernel/sched/core.c:6695
 schedule_timeout+0xb0/0x310 kernel/time/timer.c:2557
 do_wait_for_common kernel/sched/completion.c:95 [inline]
 __wait_for_common kernel/sched/completion.c:116 [inline]
 wait_for_common kernel/sched/completion.c:127 [inline]
 wait_for_completion+0x355/0x620 kernel/sched/completion.c:148
 __flush_work+0xaa9/0xd00 kernel/workqueue.c:4208
 __cancel_work_sync+0xbc/0x110 kernel/workqueue.c:4328
 uhid_dev_destroy+0x8b/0x120 drivers/hid/uhid.c:584
 uhid_char_write+0x761/0xb50 drivers/hid/uhid.c:761
 vfs_write+0x2a2/0xc90 fs/read_write.c:588
 ksys_write+0x1a0/0x2c0 fs/read_write.c:643
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fb0cf3773b9
RSP: 002b:00007fb0d01b0048 EFLAGS: 00000246
 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 00007fb0cf505f80 RCX: 00007fb0cf3773b9
RDX: 0000000000000004 RSI: 0000000020001680 RDI: 0000000000000003
RBP: 00007fb0cf3e48e6 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000000b R14: 00007fb0cf505f80 R15: 00007ffc8ad5e148
 </TASK>

Showing all locks held in the system:
2 locks held by kworker/u8:1/12:
 #0: ffff888015889148
 ((wq_completion)events_unbound){+.+.}-{0:0}
, at: process_one_work kernel/workqueue.c:3206 [inline]
, at: process_scheduled_works+0x90a/0x1830 kernel/workqueue.c:3312
 #1: ffffc90000117d00 ((work_completion)(&(&kfence_timer)->work)){+.+.}-{0:0}
, at: process_one_work kernel/workqueue.c:3207 [inline]
, at: process_scheduled_works+0x945/0x1830 kernel/workqueue.c:3312
1 lock held by khungtaskd/30:
 #0: ffffffff8e937a60
 (rcu_read_lock){....}-{1:2}
, at: rcu_lock_acquire include/linux/rcupdate.h:326 [inline]
, at: rcu_read_lock include/linux/rcupdate.h:838 [inline]
, at: debug_show_all_locks+0x55/0x2a0 kernel/locking/lockdep.c:6695
3 locks held by kworker/u8:6/1824:
 #0: ffff88802aae8148 ((wq_completion)ipv6_addrconf
){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3206 [inline]
){+.+.}-{0:0}, at: process_scheduled_works+0x90a/0x1830 kernel/workqueue.c:3312
 #1: ffffc90004fc7d00 (
(work_completion)(&(&net->ipv6.addr_chk_work)->work)){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3207 [inline]
(work_completion)(&(&net->ipv6.addr_chk_work)->work)){+.+.}-{0:0}, at: process_scheduled_works+0x945/0x1830 kernel/workqueue.c:3312
 #2: ffffffff8fc81d48 (
rtnl_mutex){+.+.}-{3:3}, at: addrconf_verify_work+0x19/0x30 net/ipv6/addrconf.c:4734
4 locks held by udevd/4681:
 #0: ffff88802eafa1c8 (
&p->lock){+.+.}-{3:3}, at: seq_read_iter+0xb7/0xd60 fs/seq_file.c:182
 #1: ffff88807175b888 (
&of->mutex#2){+.+.}-{3:3}
, at: kernfs_seq_start+0x53/0x3b0 fs/kernfs/file.c:154
 #2: ffff88802b2fac38
 (kn->active#5){++++}-{0:0}
, at: kernfs_seq_start+0x72/0x3b0 fs/kernfs/file.c:155
 #3: ffff888023921a20
 (&dev->mutex){....}-{3:3}
, at: device_lock include/linux/device.h:1009 [inline]
, at: uevent_show+0x17d/0x340 drivers/base/core.c:2743
2 locks held by dhcpcd/4895:
 #0: ffff88802e4c8678 (nlk_cb_mutex-ROUTE){+.+.}-{3:3}
, at: __netlink_dump_start+0x119/0x790 net/netlink/af_netlink.c:2404
 #1: 
ffffffff8fc81d48 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:149 [inline]
ffffffff8fc81d48 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_dumpit+0x9e/0x210 net/core/rtnetlink.c:6593
2 locks held by getty/4982:
 #0: ffff88802b4760a0
 (&tty->ldisc_sem){++++}-{0:0}
, at: tty_ldisc_ref_wait+0x25/0x70 drivers/tty/tty_ldisc.c:243
 #1: ffffc9000312b2f0
 (&ldata->atomic_read_lock){+.+.}-{3:3}
, at: n_tty_read+0x6b5/0x1e10 drivers/tty/n_tty.c:2211
3 locks held by kworker/0:4/5237:
 #0: ffff888015881948
 ((wq_completion)events_power_efficient
){+.+.}-{0:0}
, at: process_one_work kernel/workqueue.c:3206 [inline]
, at: process_scheduled_works+0x90a/0x1830 kernel/workqueue.c:3312
 #1: ffffc900039ffd00 (
(reg_check_chans).work){+.+.}-{0:0}
, at: process_one_work kernel/workqueue.c:3207 [inline]
, at: process_scheduled_works+0x945/0x1830 kernel/workqueue.c:3312
 #2: ffffffff8fc81d48
 (rtnl_mutex
){+.+.}-{3:3}
, at: reg_check_chans_work+0x99/0xfd0 net/wireless/reg.c:2480
6 locks held by kworker/1:7/5310:
1 lock held by syz-executor/10865:
 #0: 
ffffffff8fc81d48 (rtnl_mutex){+.+.}-{3:3}
, at: tun_detach drivers/net/tun.c:698 [inline]
, at: tun_chr_close+0x3e/0x1b0 drivers/net/tun.c:3510
3 locks held by kworker/0:3/12445:
 #0: ffff888015880948 ((wq_completion)events){+.+.}-{0:0}
, at: process_one_work kernel/workqueue.c:3206 [inline]
, at: process_scheduled_works+0x90a/0x1830 kernel/workqueue.c:3312
 #1: ffffc9000aeffd00 (deferred_process_work){+.+.}-{0:0}
, at: process_one_work kernel/workqueue.c:3207 [inline]
, at: process_scheduled_works+0x945/0x1830 kernel/workqueue.c:3312
 #2: 
ffffffff8fc81d48 (rtnl_mutex
){+.+.}-{3:3}
, at: switchdev_deferred_process_work+0xe/0x20 net/switchdev/switchdev.c:104
1 lock held by syz.1.2512/12910:
 #0: ffffffff8fc81d48
 (
rtnl_mutex){+.+.}-{3:3}, at: tun_detach drivers/net/tun.c:698 [inline]
rtnl_mutex){+.+.}-{3:3}, at: tun_chr_close+0x3e/0x1b0 drivers/net/tun.c:3510
1 lock held by syz.1.3030/14117:
 #0: ffff888067168068
 (&uhid->devlock){+.+.}-{3:3}
, at: uhid_char_write+0x78/0xb50 drivers/hid/uhid.c:731
1 lock held by syz.4.3452/15136:
2 locks held by syz.0.3455/15149:
 #0: ffffffff8fc751d0 (
pernet_ops_rwsem){++++}-{3:3}, at: copy_net_ns+0x4c6/0x7b0 net/core/net_namespace.c:504
 #1: ffffffff8fc81d48
 (rtnl_mutex){+.+.}-{3:3}
, at: register_nexthop_notifier+0x84/0x290 net/ipv4/nexthop.c:3872
1 lock held by syz-executor/15152:
 #0: ffffffff8fc81d48
 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:149 [inline]
 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x6eb/0xd00 net/core/rtnetlink.c:6731
1 lock held by syz.3.3461/15177:
 #0: ffffffff8fc81d48
 (rtnl_mutex){+.+.}-{3:3}, at: tun_detach drivers/net/tun.c:698 [inline]
 (rtnl_mutex){+.+.}-{3:3}, at: tun_chr_close+0x3e/0x1b0 drivers/net/tun.c:3510
1 lock held by syz.3.3461/15178:
 #0: ffffffff8fc81d48
 (rtnl_mutex){+.+.}-{3:3}
, at: rtnl_lock net/core/rtnetlink.c:149 [inline]
, at: rtnetlink_rcv_msg+0x6eb/0xd00 net/core/rtnetlink.c:6731
4 locks held by syz.1.3462/15183:
 #0: ffffffff8fce77f0 (
cb_lock){++++}-{3:3}, at: genl_rcv+0x19/0x40 net/netlink/genetlink.c:1218
 #1: ffff88801a795678 (nlk_cb_mutex-GENERIC
){+.+.}-{3:3}
, at: __netlink_dump_start+0x119/0x790 net/netlink/af_netlink.c:2404
 #2: ffffffff8fce76a8 (
genl_mutex){+.+.}-{3:3}
, at: genl_lock net/netlink/genetlink.c:35 [inline]
, at: genl_op_lock net/netlink/genetlink.c:60 [inline]
, at: genl_dumpit+0xd6/0x1a0 net/netlink/genetlink.c:1026
 #3: ffffffff8fc81d48
 (rtnl_mutex){+.+.}-{3:3}
, at: ieee802154_nl_fill_phy+0xf2/0x790 net/ieee802154/nl-phy.c:45
2 locks held by syz.1.3462/15184:
 #0: 
ffffffff8fce77f0 (cb_lock){++++}-{3:3}, at: genl_rcv+0x19/0x40 net/netlink/genetlink.c:1218
 #1: 
ffffffff8fce76a8 (genl_mutex){+.+.}-{3:3}
, at: genl_lock net/netlink/genetlink.c:35 [inline]
, at: genl_op_lock net/netlink/genetlink.c:60 [inline]
, at: genl_rcv_msg+0x121/0xec0 net/netlink/genetlink.c:1209
1 lock held by syz-executor/15186:
 #0: ffffffff8fc81d48 (rtnl_mutex
){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:149 [inline]
){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x6eb/0xd00 net/core/rtnetlink.c:6731
1 lock held by syz-executor/15189:
 #0: 
ffffffff8fc81d48 (rtnl_mutex){+.+.}-{3:3}
, at: rtnl_lock net/core/rtnetlink.c:149 [inline]
, at: rtnetlink_rcv_msg+0x6eb/0xd00 net/core/rtnetlink.c:6731
1 lock held by syz-executor/15194:
 #0: ffffffff8fc81d48 (
rtnl_mutex
){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:149 [inline]
){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x6eb/0xd00 net/core/rtnetlink.c:6731
1 lock held by syz-executor/15196:
 #0: 
ffffffff8fc81d48 (
rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:149 [inline]
rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x6eb/0xd00 net/core/rtnetlink.c:6731
1 lock held by syz-executor/15201:
 #0: ffffffff8fc81d48 (rtnl_mutex
){+.+.}-{3:3}
, at: rtnl_lock net/core/rtnetlink.c:149 [inline]
, at: rtnetlink_rcv_msg+0x6eb/0xd00 net/core/rtnetlink.c:6731
1 lock held by syz-executor/15204:
 #0: ffffffff8fc81d48
 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:149 [inline]
 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x6eb/0xd00 net/core/rtnetlink.c:6731
1 lock held by syz-executor/15207:
 #0: ffffffff8fc81d48 (rtnl_mutex
){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:149 [inline]
){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x6eb/0xd00 net/core/rtnetlink.c:6731
1 lock held by syz-executor/15210:
 #0: ffffffff8fc81d48 (
rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:149 [inline]
rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x6eb/0xd00 net/core/rtnetlink.c:6731
1 lock held by syz-executor/15213:
 #0: 
ffffffff8fc81d48 (rtnl_mutex
){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:149 [inline]
){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x6eb/0xd00 net/core/rtnetlink.c:6731

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

NMI backtrace for cpu 0
CPU: 0 UID: 0 PID: 30 Comm: khungtaskd Not tainted 6.11.0-rc1-next-20240729-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/27/2024
Call Trace:
 <TASK>
 __dump_stack lib/dump_stack.c:94 [inline]
 dump_stack_lvl+0x241/0x360 lib/dump_stack.c:120
 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+0xff4/0x1040 kernel/hung_task.c:379
 kthread+0x2f0/0x390 kernel/kthread.c:389
 ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:144
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
 </TASK>
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 UID: 0 PID: 5310 Comm: kworker/1:7 Not tainted 6.11.0-rc1-next-20240729-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/27/2024
Workqueue: events uhid_device_add_worker
RIP: 0010:memset_orig+0x36/0xb0 arch/x86/lib/memset_64.S:68
Code: b8 01 01 01 01 01 01 01 01 48 0f af c1 41 89 f9 41 83 e1 07 75 70 48 89 d1 48 c1 e9 06 74 35 0f 1f 44 00 00 48 ff c9 48 89 07 <48> 89 47 08 48 89 47 10 48 89 47 18 48 89 47 20 48 89 47 28 48 89
RSP: 0018:ffffc90000a17e98 EFLAGS: 00000006
RAX: 0000000000000000 RBX: ffffc90000a17f00 RCX: 0000000000000006
RDX: 000000000000029a RSI: 0000000000000000 RDI: ffffc90000a17fc0
RBP: ffffc90000a18270 R08: 0000000000000001 R09: 0000000000000000
R10: ffffc90000a17f00 R11: fffff52000143033 R12: ffff0a00ffffff05
R13: dffffc0000000000 R14: ffffffff8e026235 R15: 1ffff92000143058
FS:  0000000000000000(0000) GS:ffff8880b9300000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fd31fe38740 CR3: 000000002bf7c000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <NMI>
 </NMI>
 <IRQ>
 symbol_string+0xb6/0x3b0 lib/vsprintf.c:987
 pointer+0x8cb/0x1210 lib/vsprintf.c:2422
 vsnprintf+0xdb0/0x1da0 lib/vsprintf.c:2828
 vscnprintf+0x42/0x90 lib/vsprintf.c:2930
 printk_sprint+0x31/0x4b0 kernel/printk/printk.c:2189
 vprintk_store+0x984/0x1160 kernel/printk/printk.c:2303
 vprintk_emit+0x1de/0x900 kernel/printk/printk.c:2371
 _printk+0xd5/0x120 kernel/printk/printk.c:2450
 printk_stack_address arch/x86/kernel/dumpstack.c:72 [inline]
 show_trace_log_lvl+0x43a/0x520 arch/x86/kernel/dumpstack.c:285
 sched_show_task+0x506/0x6d0 kernel/sched/core.c:7512
 report_rtnl_holders+0x327/0x400 net/core/rtnetlink.c:110
 call_timer_fn+0x18e/0x650 kernel/time/timer.c:1792
 expire_timers kernel/time/timer.c:1843 [inline]
 __run_timers kernel/time/timer.c:2417 [inline]
 __run_timer_base+0x66a/0x8e0 kernel/time/timer.c:2428
 run_timer_base kernel/time/timer.c:2437 [inline]
 run_timer_softirq+0xb7/0x170 kernel/time/timer.c:2447
 handle_softirqs+0x2c4/0x970 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:console_flush_all+0x9f7/0xf50 kernel/printk/printk.c:3103
Code: 20 00 90 0f 0b 90 e9 f3 f9 ff ff e8 83 1c 20 00 e8 0e e7 45 0a 4d 85 f6 74 c0 e8 74 1c 20 00 fb 49 bd 00 00 00 00 00 fc ff df <43> 80 3c 2f 00 48 8b 5c 24 30 74 08 48 89 df e8 85 a1 87 00 4c 8b
RSP: 0018:ffffc9000445ee40 EFLAGS: 00000293
RAX: ffffffff8173aeec RBX: 0000000000000000 RCX: ffff88801a3b0000
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffffc9000445efd0 R08: ffffffff8173ae93 R09: 1ffffffff26e6f00
R10: dffffc0000000000 R11: fffffbfff26e6f01 R12: ffffffff8f131800
R13: dffffc0000000000 R14: 0000000000000200 R15: 1ffffffff1e2630b
 console_unlock+0x13b/0x4d0 kernel/printk/printk.c:3173
 vprintk_emit+0x7a1/0x900 kernel/printk/printk.c:2423
 dev_vprintk_emit+0x2ae/0x330 drivers/base/core.c:4909
 dev_printk_emit+0xdd/0x120 drivers/base/core.c:4920
 _dev_warn+0x122/0x170 drivers/base/core.c:4976
 hid_parser_main+0x71f/0xaa0 drivers/hid/hid-core.c:632
 hid_open_report+0xafa/0x14a0 drivers/hid/hid-core.c:1276
 hid_parse include/linux/hid.h:1118 [inline]
 hid_generic_probe+0x3d/0x90 drivers/hid/hid-generic.c:63
 __hid_device_probe drivers/hid/hid-core.c:2674 [inline]
 hid_device_probe+0x26e/0x4f0 drivers/hid/hid-core.c:2711
 really_probe+0x2b8/0xad0 drivers/base/dd.c:657
 __driver_probe_device+0x1a2/0x390 drivers/base/dd.c:799
 driver_probe_device+0x50/0x430 drivers/base/dd.c:829
 __device_attach_driver+0x2d6/0x530 drivers/base/dd.c:957
 bus_for_each_drv+0x24e/0x2e0 drivers/base/bus.c:457
 __device_attach+0x333/0x520 drivers/base/dd.c:1029
 bus_probe_device+0x189/0x260 drivers/base/bus.c:532
 device_add+0x856/0xbf0 drivers/base/core.c:3679
 hid_add_device+0x3b6/0x520 drivers/hid/hid-core.c:2857
 uhid_device_add_worker+0x44/0xf0 drivers/hid/uhid.c:73
 process_one_work kernel/workqueue.c:3231 [inline]
 process_scheduled_works+0xa2c/0x1830 kernel/workqueue.c:3312
 worker_thread+0x86d/0xd40 kernel/workqueue.c:3390
 kthread+0x2f0/0x390 kernel/kthread.c:389
 ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:144
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
 </TASK>
 sock_sendmsg_nosec net/socket.c:730 [inline]
 __sock_sendmsg+0x221/0x270 net/socket.c:745
 __sys_sendto+0x3a4/0x4f0 net/socket.c:2204