rcu: INFO: rcu_preempt detected expedited stalls on CPUs/tasks: { 0-.... } 2683 jiffies s: 8209 root: 0x1/.
rcu: blocking rcu_node structures (internal RCU debug):
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 UID: 0 PID: 10183 Comm: syz.4.2128 Not tainted 6.11.0-syzkaller-02574-ga430d95c5efa #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/06/2024
RIP: 0010:stack_trace_consume_entry+0x96/0x170 kernel/stacktrace.c:89
Code: 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 08 84 d2 0f 85 98 00 00 00 8b 43 0c <85> c0 75 57 48 b8 00 00 00 00 00 fc ff df 48 89 da 48 c1 ea 03 80
RSP: 0018:ffffc90000006dc0 EFLAGS: 00000046
RAX: 0000000000000000 RBX: ffffc90000006ea8 RCX: ffffffff81341bfe
RDX: 0000000000000000 RSI: ffffffff8b180bb7 RDI: ffffc90000006eb4
RBP: 000000000000000f R08: 0000000000000007 R09: 0000000000000000
R10: ffffffff8b180bb7 R11: 0000000000000000 R12: ffffc90000006de8
R13: ffffffff817774c0 R14: ffffc90000006ea8 R15: ffff888032adbc00
FS:  0000555594796500(0000) GS:ffff8880b8800000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b32a05ff8 CR3: 0000000048744000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <NMI>
 </NMI>
 <IRQ>
 arch_stack_walk+0xe1/0x170 arch/x86/kernel/stacktrace.c:27
 stack_trace_save+0x95/0xd0 kernel/stacktrace.c:122
 kasan_save_stack+0x33/0x60 mm/kasan/common.c:47
 kasan_save_track+0x14/0x30 mm/kasan/common.c:68
 poison_kmalloc_redzone mm/kasan/common.c:370 [inline]
 __kasan_kmalloc+0xaa/0xb0 mm/kasan/common.c:387
 kmalloc_noprof include/linux/slab.h:690 [inline]
 dummy_urb_enqueue+0x8d/0x8a0 drivers/usb/gadget/udc/dummy_hcd.c:1271
 usb_hcd_submit_urb+0x2d1/0x2090 drivers/usb/core/hcd.c:1533
 usb_submit_urb+0x87c/0x1730 drivers/usb/core/urb.c:581
 ath9k_hif_usb_reg_in_cb+0x500/0x720 drivers/net/wireless/ath/ath9k/hif_usb.c:790
 __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+0x17c3/0x38d0 drivers/usb/gadget/udc/dummy_hcd.c:1987
 __run_hrtimer kernel/time/hrtimer.c:1689 [inline]
 __hrtimer_run_queues+0x20c/0xcc0 kernel/time/hrtimer.c:1753
 hrtimer_interrupt+0x31b/0x800 kernel/time/hrtimer.c:1815
 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1032 [inline]
 __sysvec_apic_timer_interrupt+0x10f/0x450 arch/x86/kernel/apic/apic.c:1049
 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1043 [inline]
 sysvec_apic_timer_interrupt+0x43/0xb0 arch/x86/kernel/apic/apic.c:1043
 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702
RIP: 0010:lock_is_held_type+0x107/0x150 kernel/locking/lockdep.c:5836
Code: 00 00 b8 ff ff ff ff 65 0f c1 05 ec 7f ea 74 83 f8 01 75 2d 9c 58 f6 c4 02 75 43 48 f7 04 24 00 02 00 00 74 01 fb 48 83 c4 08 <44> 89 e8 5b 5d 41 5c 41 5d 41 5e 41 5f c3 cc cc cc cc 45 31 ed eb
RSP: 0018:ffffc90000007918 EFLAGS: 00000286
RAX: 0000000000000046 RBX: ffff888032adc758 RCX: 0000000000000001
RDX: 0000000000000000 RSI: ffffffff8b4cddc0 RDI: ffffffff8bb118a0
RBP: ffffffff8ddba6a0 R08: 0000000000000005 R09: 0000000000000000
R10: 0000000000000001 R11: 0000000000000000 R12: ffff888032adbc00
R13: 0000000000000001 R14: 00000000ffffffff R15: 0000000000000003
 in6_dev_get+0x153/0x310 include/net/addrconf.h:376
 icmp6_dst_alloc+0x24/0x490 net/ipv6/route.c:3269
 ndisc_send_skb+0x1279/0x1c30 net/ipv6/ndisc.c:491
 ndisc_send_rs+0x129/0x670 net/ipv6/ndisc.c:721
 addrconf_rs_timer+0x407/0x840 net/ipv6/addrconf.c:4042
 call_timer_fn+0x1a0/0x610 kernel/time/timer.c:1792
 expire_timers kernel/time/timer.c:1843 [inline]
 __run_timers+0x74b/0xaf0 kernel/time/timer.c:2417
 __run_timer_base kernel/time/timer.c:2428 [inline]
 __run_timer_base kernel/time/timer.c:2421 [inline]
 run_timer_base+0x111/0x190 kernel/time/timer.c:2437
 run_timer_softirq+0x1a/0x40 kernel/time/timer.c:2447
 handle_softirqs+0x216/0x8f0 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+0xbb/0x120 kernel/softirq.c:649
 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1043 [inline]
 sysvec_apic_timer_interrupt+0x95/0xb0 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+0x31/0x80 kernel/locking/spinlock.c:194
Code: f5 53 48 8b 74 24 10 48 89 fb 48 83 c7 18 e8 36 fd 4e f6 48 89 df e8 4e 7a 4f f6 f7 c5 00 02 00 00 75 23 9c 58 f6 c4 02 75 37 <bf> 01 00 00 00 e8 85 f3 40 f6 65 8b 05 86 0c e9 74 85 c0 74 16 5b
RSP: 0018:ffffc90004067b30 EFLAGS: 00000246
RAX: 0000000000000006 RBX: ffffffff8f0b15e0 RCX: 1ffffffff2d46cb7
RDX: 0000000000000000 RSI: ffffffff8b4cdac0 RDI: ffffffff8bb118a0
RBP: 0000000000000293 R08: 0000000000000001 R09: fffffbfff2d39b01
R10: ffffffff969cd80f R11: ffff8880b8828a40 R12: 1ffff9200080cf6e
R13: ffff88802918a23c R14: ffff8880289ed300 R15: ffff8880289ed318
 spin_unlock_irqrestore include/linux/spinlock.h:406 [inline]
 usb_hcd_poll_rh_status+0x572/0x7f0 drivers/usb/core/hcd.c:762
 dummy_pullup+0x212/0x270 drivers/usb/gadget/udc/dummy_hcd.c:926
 usb_gadget_disconnect_locked+0x13f/0x4e0 drivers/usb/gadget/udc/core.c:777
 gadget_unbind_driver+0xd7/0x4e0 drivers/usb/gadget/udc/core.c:1666
 device_remove+0xc8/0x170 drivers/base/dd.c:566
 __device_release_driver drivers/base/dd.c:1272 [inline]
 device_release_driver_internal+0x44a/0x610 drivers/base/dd.c:1295
 driver_detach+0xd8/0x1b0 drivers/base/dd.c:1358
 bus_remove_driver+0x13b/0x2c0 drivers/base/bus.c:742
 driver_unregister+0x76/0xb0 drivers/base/driver.c:274
 usb_gadget_unregister_driver+0x49/0x70 drivers/usb/gadget/udc/core.c:1731
 raw_release+0x1ae/0x2b0 drivers/usb/gadget/legacy/raw_gadget.c:462
 __fput+0x3f6/0xb60 fs/file_table.c:431
 task_work_run+0x14e/0x250 kernel/task_work.c:228
 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+0x27b/0x2a0 kernel/entry/common.c:218
 do_syscall_64+0xda/0x250 arch/x86/entry/common.c:89
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f134137def9
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007ffdcf76c158 EFLAGS: 00000246 ORIG_RAX: 00000000000001b4
RAX: 0000000000000000 RBX: 0000000000051f78 RCX: 00007f134137def9
RDX: 0000000000000000 RSI: 000000000000001e RDI: 0000000000000003
RBP: 00007f1341537a80 R08: 0000000000000001 R09: 00007ffdcf76c44f
R10: 00007f1341200000 R11: 0000000000000246 R12: 00000000000524e5
R13: 00007ffdcf76c260 R14: 0000000000000032 R15: ffffffffffffffff
 </TASK>