rcu: INFO: rcu_preempt detected expedited stalls on CPUs/tasks: {
 0-...D } 2682 jiffies s: 36173 root: 0x1/.
rcu: blocking rcu_node structures (internal RCU debug):

Sending NMI from CPU 1 to CPUs 0:
 netlink_rcv_skb+0x16b/0x440 net/netlink/af_netlink.c:2551
NMI backtrace for cpu 0
CPU: 0 UID: 0 PID: 6198 Comm: kworker/0:6 Not tainted 6.12.0-rc4-syzkaller-00052-gc6d9e43954bf #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
Workqueue: usb_hub_wq hub_event
RIP: 0010:__sanitizer_cov_trace_const_cmp1+0x8/0x20 kernel/kcov.c:300
Code: bf 06 00 00 00 e9 b8 fe ff ff 0f 1f 84 00 00 00 00 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa 48 8b 0c 24 <40> 0f b6 d6 40 0f b6 f7 bf 01 00 00 00 e9 86 fe ff ff 66 0f 1f 44
RSP: 0018:ffffc90000006af0 EFLAGS: 00000046
RAX: 0000000000040000 RBX: ffffffff8728c781 RCX: ffffffff86e69f96
RDX: 0000000000040000 RSI: 000000000000006c RDI: 0000000000000068
RBP: ffffffff8728c783 R08: 0000000000000001 R09: 000000000000002e
R10: 000000000000006c R11: 0000000000491e68 R12: ffffc90000006bf8
R13: 000000000000006c R14: 0000000000000035 R15: 0000000000000005
FS:  0000000000000000(0000) GS:ffff8881f5800000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000020001a00 CR3: 00000001166ba000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <NMI>
 </NMI>
 <IRQ>
 format_decode+0x3c6/0xba0 lib/vsprintf.c:2597
 vsnprintf+0x13d/0x1880 lib/vsprintf.c:2755
 sprintf+0xcd/0x110 lib/vsprintf.c:3007
 print_time kernel/printk/printk.c:1362 [inline]
 info_print_prefix+0x25c/0x350 kernel/printk/printk.c:1388
 record_print_text+0x141/0x400 kernel/printk/printk.c:1437
 printk_get_next_message+0x2a6/0x670 kernel/printk/printk.c:2978
 console_emit_next_record kernel/printk/printk.c:3046 [inline]
 console_flush_all+0x6ec/0xc60 kernel/printk/printk.c:3180
 __console_flush_and_unlock kernel/printk/printk.c:3239 [inline]
 console_unlock+0xd9/0x210 kernel/printk/printk.c:3279
 vprintk_emit+0x424/0x6f0 kernel/printk/printk.c:2407
 vprintk+0x7f/0xa0 kernel/printk/printk_safe.c:68
 _printk+0xc8/0x100 kernel/printk/printk.c:2432
 printk_stack_address arch/x86/kernel/dumpstack.c:72 [inline]
 show_trace_log_lvl+0x21f/0x3d0 arch/x86/kernel/dumpstack.c:285
 sched_show_task kernel/sched/core.c:7604 [inline]
 sched_show_task+0x3f0/0x5f0 kernel/sched/core.c:7579
 show_state_filter+0xee/0x320 kernel/sched/core.c:7649
 k_spec drivers/tty/vt/keyboard.c:667 [inline]
 k_spec+0xed/0x150 drivers/tty/vt/keyboard.c:656
 kbd_keycode drivers/tty/vt/keyboard.c:1522 [inline]
 kbd_event+0xcbd/0x17a0 drivers/tty/vt/keyboard.c:1541
 input_handler_events_default+0x116/0x1b0 drivers/input/input.c:2549
 input_pass_values+0x777/0x8e0 drivers/input/input.c:126
 input_event_dispose drivers/input/input.c:352 [inline]
 input_handle_event+0xb30/0x14d0 drivers/input/input.c:369
 input_event drivers/input/input.c:398 [inline]
 input_event+0x83/0xa0 drivers/input/input.c:390
 hidinput_hid_event+0xa12/0x2410 drivers/hid/hid-input.c:1719
 hid_process_event+0x4b7/0x5e0 drivers/hid/hid-core.c:1540
 hid_input_array_field+0x535/0x710 drivers/hid/hid-core.c:1652
 hid_process_report drivers/hid/hid-core.c:1694 [inline]
 hid_report_raw_event+0xa02/0x11c0 drivers/hid/hid-core.c:2040
 __hid_input_report.constprop.0+0x341/0x440 drivers/hid/hid-core.c:2110
 hid_irq_in+0x35e/0x870 drivers/hid/usbhid/hid-core.c:285
 __usb_hcd_giveback_urb+0x389/0x6e0 drivers/usb/core/hcd.c:1650
 usb_hcd_giveback_urb+0x396/0x450 drivers/usb/core/hcd.c:1734
 dummy_timer+0x17f0/0x3930 drivers/usb/gadget/udc/dummy_hcd.c:1993
 __run_hrtimer kernel/time/hrtimer.c:1691 [inline]
 __hrtimer_run_queues+0x20a/0xae0 kernel/time/hrtimer.c:1755
 hrtimer_run_softirq+0x17d/0x350 kernel/time/hrtimer.c:1772
 handle_softirqs+0x206/0x8d0 kernel/softirq.c:554
 __do_softirq kernel/softirq.c:588 [inline]
 invoke_softirq kernel/softirq.c:428 [inline]
 __irq_exit_rcu kernel/softirq.c:637 [inline]
 irq_exit_rcu+0xac/0x110 kernel/softirq.c:649
 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1049 [inline]
 sysvec_apic_timer_interrupt+0x90/0xb0 arch/x86/kernel/apic/apic.c:1049
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702
RIP: 0010:qlink_to_object mm/kasan/quarantine.c:140 [inline]
RIP: 0010:qlink_free mm/kasan/quarantine.c:145 [inline]
RIP: 0010:qlist_free_all+0x2c/0x120 mm/kasan/quarantine.c:179
Code: 41 56 41 55 41 54 55 53 48 8b 2f 48 85 ed 0f 84 c9 00 00 00 49 89 fe 49 89 f5 eb 38 48 63 83 c0 00 00 00 48 89 df 4c 8b 65 00 <48> 29 c5 48 89 ee e8 39 ee ff ff 49 89 c7 66 90 48 89 ee 48 89 df
RSP: 0018:ffffc900109a6af0 EFLAGS: 00000246
RAX: 0000000000000000 RBX: ffff8881000413c0 RCX: ffffea0000000000
RDX: 0000000000000000 RSI: ffffffff8116adb6 RDI: ffff8881000413c0
RBP: ffff88811411d300 R08: 0000000000000007 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: ffff8881067ac2e0
R13: 0000000000000000 R14: ffffc900109a6b28 R15: ffff888115170000
 kasan_quarantine_reduce+0x192/0x1e0 mm/kasan/quarantine.c:286
 __kasan_slab_alloc+0x4e/0x70 mm/kasan/common.c:329
 kasan_slab_alloc include/linux/kasan.h:247 [inline]
 slab_post_alloc_hook mm/slub.c:4085 [inline]
 slab_alloc_node mm/slub.c:4134 [inline]
 __kmalloc_cache_noprof+0x119/0x2c0 mm/slub.c:4290
 kmalloc_noprof include/linux/slab.h:878 [inline]
 usb_control_msg+0xbd/0x4b0 drivers/usb/core/message.c:144
 _usbctrl_vendorreq_sync+0xc6/0x1f0 drivers/net/wireless/realtek/rtlwifi/usb.c:42
 _usb_read_sync+0x11d/0x190 drivers/net/wireless/realtek/rtlwifi/usb.c:75
 rtl_read_dword drivers/net/wireless/realtek/rtlwifi/wifi.h:2911 [inline]
 read_efuse_byte+0x612/0x910 drivers/net/wireless/realtek/rtlwifi/efuse.c:182
 read_efuse+0x499/0xd60 drivers/net/wireless/realtek/rtlwifi/efuse.c:311
 efuse_read_all_map drivers/net/wireless/realtek/rtlwifi/efuse.c:648 [inline]
 rtl_efuse_shadow_map_update+0x1f8/0x2c0 drivers/net/wireless/realtek/rtlwifi/efuse.c:494
 rtl_get_hwinfo+0xdb/0x880 drivers/net/wireless/realtek/rtlwifi/efuse.c:1224
 _rtl92cu_read_adapter_info drivers/net/wireless/realtek/rtlwifi/rtl8192cu/hw.c:334 [inline]
 rtl92cu_read_eeprom_info+0x2bc/0x2730 drivers/net/wireless/realtek/rtlwifi/rtl8192cu/hw.c:411
 rtl_usb_probe+0x915/0x24d0 drivers/net/wireless/realtek/rtlwifi/usb.c:1011
 usb_probe_interface+0x309/0x9d0 drivers/usb/core/driver.c:399
 call_driver_probe drivers/base/dd.c:579 [inline]
 really_probe+0x23e/0xa90 drivers/base/dd.c:658
 __driver_probe_device+0x1de/0x440 drivers/base/dd.c:800
 driver_probe_device+0x4c/0x1b0 drivers/base/dd.c:830
 __device_attach_driver+0x1df/0x310 drivers/base/dd.c:958
 bus_for_each_drv+0x157/0x1e0 drivers/base/bus.c:459
 __device_attach+0x1e8/0x4b0 drivers/base/dd.c:1030
 bus_probe_device+0x17f/0x1c0 drivers/base/bus.c:534
 device_add+0x114b/0x1a70 drivers/base/core.c:3675
 usb_set_configuration+0x10cb/0x1c50 drivers/usb/core/message.c:2210
 usb_generic_driver_probe+0xb1/0x110 drivers/usb/core/generic.c:254
 usb_probe_device+0xec/0x3e0 drivers/usb/core/driver.c:294
 call_driver_probe drivers/base/dd.c:579 [inline]
 really_probe+0x23e/0xa90 drivers/base/dd.c:658
 __driver_probe_device+0x1de/0x440 drivers/base/dd.c:800
 driver_probe_device+0x4c/0x1b0 drivers/base/dd.c:830
 __device_attach_driver+0x1df/0x310 drivers/base/dd.c:958
 bus_for_each_drv+0x157/0x1e0 drivers/base/bus.c:459
 __device_attach+0x1e8/0x4b0 drivers/base/dd.c:1030
 bus_probe_device+0x17f/0x1c0 drivers/base/bus.c:534
 device_add+0x114b/0x1a70 drivers/base/core.c:3675
 usb_new_device+0xd90/0x1a10 drivers/usb/core/hub.c:2651
 hub_port_connect drivers/usb/core/hub.c:5521 [inline]
 hub_port_connect_change drivers/usb/core/hub.c:5661 [inline]
 port_event drivers/usb/core/hub.c:5821 [inline]
 hub_event+0x2e58/0x4f40 drivers/usb/core/hub.c:5903
 process_one_work+0x9c5/0x1ba0 kernel/workqueue.c:3229
 process_scheduled_works kernel/workqueue.c:3310 [inline]
 worker_thread+0x6c8/0xf00 kernel/workqueue.c:3391
 kthread+0x2c1/0x3a0 kernel/kthread.c:389
 ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:147
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
 </TASK>
 netlink_unicast_kernel net/netlink/af_netlink.c:1331 [inline]
 netlink_unicast+0x53c/0x7f0 net/netlink/af_netlink.c:1357
 netlink_sendmsg+0x8b8/0xd70 net/netlink/af_netlink.c:1901
 sock_sendmsg_nosec net/socket.c:729 [inline]
 __sock_sendmsg net/socket.c:744 [inline]
 __sys_sendto+0x479/0x4d0 net/socket.c:2214
 __do_sys_sendto net/socket.c:2226 [inline]
 __se_sys_sendto net/socket.c:2222 [inline]
 __x64_sys_sendto+0xe0/0x1c0 net/socket.c:2222
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xcd/0x250 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f0045430553
RSP: 002b:00007ffcb96d1ab8 EFLAGS: 00000202 ORIG_RAX: 000000000000002c
RAX: ffffffffffffffda RBX: 00007f0046114620 RCX: 00007f0045430553
RDX: 0000000000000028 RSI: 00007f0046114670 RDI: 0000000000000003
RBP: 0000000000000001 R08: 00007ffcb96d1ad4 R09: 000000000000000c
R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000000003
R13: 0000000000000000 R14: 00007f0046114670 R15: 0000000000000000
 </TASK>

Showing all locks held in the system:
5 locks held by kworker/1:1/36:
3 locks held by kworker/0:2/1120:
 #0: ffff8881062cb548 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: process_one_work+0x129b/0x1ba0 kernel/workqueue.c:3204
 #1: ffffc90001eafd80 ((work_completion)(&hub->events)){+.+.}-{0:0}
, at: process_one_work+0x921/0x1ba0 kernel/workqueue.c:3205
 #2: 
ffff88810af22190
 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:1014 [inline]
 (&dev->mutex){....}-{3:3}, at: hub_event+0x1be/0x4f40 drivers/usb/core/hub.c:5849
2 locks held by dhcpcd/2896:
 #0: ffffffff8a1eb930 (cb_lock){++++}-{3:3}, at: genl_rcv+0x19/0x40 net/netlink/genetlink.c:1218
 #1: 
ffffffff8a1a2368 (rtnl_mutex){+.+.}-{3:3}
, at: nl80211_pre_doit+0xb4/0xb10 net/wireless/nl80211.c:16580
2 locks held by getty/2917:
 #0: ffff8881121220a0
 (
&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x24/0x80 drivers/tty/tty_ldisc.c:243
 #1: ffffc900000432f0 (&ldata->atomic_read_lock){+.+.}-{3:3}
, at: n_tty_read+0xfba/0x1480 drivers/tty/n_tty.c:2211
10 locks held by kworker/0:6/6198:
 #0: ffff8881062cb548 ((wq_completion)usb_hub_wq){+.+.}-{0:0}
, at: process_one_work+0x129b/0x1ba0 kernel/workqueue.c:3204
 #1: 
ffffc900109a7d80 ((work_completion)(&hub->events)){+.+.}-{0:0}
, at: process_one_work+0x921/0x1ba0 kernel/workqueue.c:3205
 #2: ffff88810ab8a190 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:1014 [inline]
 #2: ffff88810ab8a190 (&dev->mutex){....}-{3:3}, at: hub_event+0x1be/0x4f40 drivers/usb/core/hub.c:5849
 #3: ffff888102f00190 (&dev->mutex){....}-{3:3}
, at: device_lock include/linux/device.h:1014 [inline]
, at: __device_attach+0x7f/0x4b0 drivers/base/dd.c:1005
 #4: ffff888132880160 (&dev->mutex){....}-{3:3}
, at: device_lock include/linux/device.h:1014 [inline]
, at: __device_attach+0x7f/0x4b0 drivers/base/dd.c:1005
 #5: 
ffffffff8905afd0 (remove_cache_srcu){.+.+}-{0:0}, at: srcu_lock_acquire include/linux/srcu.h:151 [inline]
ffffffff8905afd0 (remove_cache_srcu){.+.+}-{0:0}, at: srcu_read_lock include/linux/srcu.h:250 [inline]
ffffffff8905afd0 (remove_cache_srcu){.+.+}-{0:0}, at: kasan_quarantine_reduce+0x85/0x1e0 mm/kasan/quarantine.c:259
 #6: 
ffff88811b552230 (&dev->event_lock){..-.}-{2:2}, at: input_event drivers/input/input.c:397 [inline]
ffff88811b552230 (&dev->event_lock){..-.}-{2:2}, at: input_event+0x70/0xa0 drivers/input/input.c:390
 #7: ffffffff88ebb140 (rcu_read_lock){....}-{1:2}
, at: rcu_lock_acquire include/linux/rcupdate.h:337 [inline]
, at: rcu_read_lock include/linux/rcupdate.h:849 [inline]
, at: input_pass_values+0x8b/0x8e0 drivers/input/input.c:118
 #8: ffffffff89387a58 (kbd_event_lock){..-.}-{2:2}
, at: spin_lock include/linux/spinlock.h:351 [inline]
, at: kbd_event+0x8a/0x17a0 drivers/tty/vt/keyboard.c:1535
 #9: 
ffffffff88ebb140
 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire include/linux/rcupdate.h:337 [inline]
 (rcu_read_lock){....}-{1:2}, at: rcu_read_lock include/linux/rcupdate.h:849 [inline]
 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x7f/0x390 kernel/locking/lockdep.c:6720
7 locks held by kworker/1:4/10505:
 #0: ffff8881062cb548
 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: process_one_work+0x129b/0x1ba0 kernel/workqueue.c:3204
 #1: 
ffffc9000f34fd80 ((work_completion)(&hub->events)){+.+.}-{0:0}, at: process_one_work+0x921/0x1ba0 kernel/workqueue.c:3205
 #2: ffff888108bc5190 (&dev->mutex){....}-{3:3}
, at: device_lock include/linux/device.h:1014 [inline]
, at: hub_event+0x1be/0x4f40 drivers/usb/core/hub.c:5849
 #3: 
ffff88812735f190
 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:1014 [inline]
 (&dev->mutex){....}-{3:3}, at: usb_disconnect+0x10a/0x920 drivers/usb/core/hub.c:2295
 #4: 
ffff888117cf5160 (&dev->mutex){....}-{3:3}
, at: device_lock include/linux/device.h:1014 [inline]
, at: __device_driver_lock drivers/base/dd.c:1095 [inline]
, at: device_release_driver_internal+0xa4/0x610 drivers/base/dd.c:1293
 #5: ffffffff8a1a2368
 (rtnl_mutex){+.+.}-{3:3}, at: unregister_netdev+0x12/0x30 net/core/dev.c:11482
 #6: ffffffff88ec6a38 (rcu_state.exp_mutex){+.+.}-{3:3}, at: exp_funnel_lock+0x1a4/0x3b0 kernel/rcu/tree_exp.h:329
6 locks held by kworker/0:0/12100:
1 lock held by syz.0.2853/15709:
 #0: ffffffff88ec6a38
 (rcu_state.exp_mutex){+.+.}-{3:3}
, at: exp_funnel_lock+0x282/0x3b0 kernel/rcu/tree_exp.h:297
1 lock held by syz-executor/15725:
 #0: 
ffffffff8a1a2368
 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:79 [inline]
 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x372/0xea0 net/core/rtnetlink.c:6672
1 lock held by syz-executor/15729:
 #0: ffffffff8a1a2368
 (
rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:79 [inline]
rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x372/0xea0 net/core/rtnetlink.c:6672
1 lock held by syz-executor/15733:
 #0: ffffffff8a1a2368 (rtnl_mutex
){+.+.}-{3:3}
, at: rtnl_lock net/core/rtnetlink.c:79 [inline]
, at: rtnetlink_rcv_msg+0x372/0xea0 net/core/rtnetlink.c:6672
1 lock held by syz-executor/15737:
 #0: 
ffffffff8a1a2368
 (
rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:79 [inline]
rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x372/0xea0 net/core/rtnetlink.c:6672
1 lock held by syz-executor/15741:
 #0: ffffffff8a1a2368 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:79 [inline]
 #0: ffffffff8a1a2368 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x372/0xea0 net/core/rtnetlink.c:6672

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