rcu: INFO: rcu_preempt detected expedited stalls on CPUs/tasks: { 0-.... } 2657 jiffies s: 11681 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: 5923 Comm: syz.1.78 Not tainted 6.10.0-syzkaller-12710-g3a7e02c040b1 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/27/2024
RIP: 0010:unwind_next_frame+0x8cb/0x2a00 arch/x86/kernel/unwind_orc.c:515
Code: ff 89 de e8 67 76 52 00 85 db 0f 84 4b 06 00 00 e8 5a 73 52 00 48 83 c5 10 e9 da 06 00 00 83 fd 04 0f 84 6c 01 00 00 83 fd 05 <0f> 85 ff 02 00 00 e8 3a 73 52 00 48 8b 44 24 58 42 80 3c 28 00 74
RSP: 0018:ffffc900000061a8 EFLAGS: 00000046
RAX: 0000000000000002 RBX: ffffc900000062b8 RCX: 0000000000040000
RDX: 0000000000000008 RSI: ffffffff8e7a32a0 RDI: 0000000000000005
RBP: 0000000000000005 R08: 0000000000000005 R09: ffffffff81410f0e
R10: 0000000000000008 R11: ffff88801bb13c00 R12: ffffffff902f9c8c
R13: dffffc0000000000 R14: ffffc900000062d0 R15: 1ffff92000000c50
FS:  0000555584aa8500(0000) GS:ffff8880b9200000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f6d3f125fa8 CR3: 0000000029ff0000 CR4: 0000000000350ef0
Call Trace:
 <NMI>
 </NMI>
 <IRQ>
 arch_stack_walk+0x151/0x1b0 arch/x86/kernel/stacktrace.c:25
 stack_trace_save+0x118/0x1d0 kernel/stacktrace.c:122
 kasan_save_stack mm/kasan/common.c:47 [inline]
 kasan_save_track+0x3f/0x80 mm/kasan/common.c:68
 poison_kmalloc_redzone mm/kasan/common.c:370 [inline]
 __kasan_kmalloc+0x98/0xb0 mm/kasan/common.c:387
 kasan_kmalloc include/linux/kasan.h:211 [inline]
 __kmalloc_cache_noprof+0x19c/0x2c0 mm/slub.c:4189
 kmalloc_noprof include/linux/slab.h:681 [inline]
 dummy_urb_enqueue+0x7d/0x760 drivers/usb/gadget/udc/dummy_hcd.c:1271
 usb_hcd_submit_urb+0x36e/0x1e80 drivers/usb/core/hcd.c:1533
 ath9k_hif_usb_reg_in_cb+0x472/0x650 drivers/net/wireless/ath/ath9k/hif_usb.c:792
 __usb_hcd_giveback_urb+0x42e/0x6e0 drivers/usb/core/hcd.c:1650
 dummy_timer+0x830/0x45a0 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:preempt_count arch/x86/include/asm/preempt.h:26 [inline]
RIP: 0010:check_kcov_mode kernel/kcov.c:173 [inline]
RIP: 0010:write_comp_data kernel/kcov.c:236 [inline]
RIP: 0010:__sanitizer_cov_trace_const_cmp1+0x11/0x90 kernel/kcov.c:290
Code: 00 00 00 00 00 0f 1f 40 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa 4c 8b 04 24 65 48 8b 14 25 40 d7 03 00 <65> 8b 05 d0 50 70 7e a9 00 01 ff 00 74 10 a9 00 01 00 00 74 5b 83
RSP: 0018:ffffc90000007058 EFLAGS: 00000247
RAX: 0000000000000001 RBX: 0000000000000001 RCX: ffffffff8b031e2e
RDX: ffff88801bb13c00 RSI: 0000000000000001 RDI: 0000000000000002
RBP: 0000000000000001 R08: ffffffff8b031e4b R09: 1ffffffff202f125
R10: dffffc0000000000 R11: fffffbfff202f126 R12: ffff888052aa0000
R13: dffffc0000000000 R14: 0000000000000001 R15: ffffc90000007660
 variable_test_bit arch/x86/include/asm/bitops.h:227 [inline]
 arch_test_bit arch/x86/include/asm/bitops.h:239 [inline]
 _test_bit include/asm-generic/bitops/instrumented-non-atomic.h:142 [inline]
 cpumask_test_cpu include/linux/cpumask.h:562 [inline]
 cpu_online include/linux/cpumask.h:1105 [inline]
 trace_cfg80211_return_bss+0x6b/0x210 net/wireless/trace.h:3785
 cfg80211_inform_single_bss_data+0x16e8/0x2030 net/wireless/scan.c:2353
 cfg80211_inform_bss_data+0x3dd/0x5a70 net/wireless/scan.c:3159
 cfg80211_inform_bss_frame_data+0x3bc/0x720 net/wireless/scan.c:3249
 ieee80211_bss_info_update+0x8a7/0xbc0 net/mac80211/scan.c:226
 ieee80211_scan_rx+0x526/0x9c0 net/mac80211/scan.c:340
 __ieee80211_rx_handle_packet net/mac80211/rx.c:5225 [inline]
 ieee80211_rx_list+0x2b02/0x3780 net/mac80211/rx.c:5462
 ieee80211_rx_napi+0x18a/0x3c0 net/mac80211/rx.c:5485
 ieee80211_rx include/net/mac80211.h:5124 [inline]
 ieee80211_handle_queued_frames+0xe7/0x1e0 net/mac80211/main.c:439
 tasklet_action_common+0x323/0x4d0 kernel/softirq.c:785
 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_call_function_single arch/x86/kernel/smp.c:266 [inline]
 sysvec_call_function_single+0xa3/0xc0 arch/x86/kernel/smp.c:266
 </IRQ>
 <TASK>
 asm_sysvec_call_function_single+0x1a/0x20 arch/x86/include/asm/idtentry.h:709
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 0e 7c 3b f6 f6 44 24 21 02 75 52 41 f7 c7 00 02 00 00 74 01 fb bf 01 00 00 00 <e8> 63 a1 a3 f5 65 8b 05 64 97 44 74 85 c0 74 43 48 c7 04 24 0e 36
RSP: 0018:ffffc90003667300 EFLAGS: 00000206
RAX: ba324b1faa628900 RBX: 1ffff920006cce64 RCX: ffffffff94f1e903
RDX: dffffc0000000000 RSI: ffffffff8c0ad5a0 RDI: 0000000000000001
RBP: ffffc900036673a0 R08: ffffffff9017892f R09: 1ffffffff202f125
R10: dffffc0000000000 R11: fffffbfff202f126 R12: dffffc0000000000
R13: 1ffff920006cce60 R14: ffffc90003667320 R15: 0000000000000246
 stack_depot_save_flags+0x6e4/0x830 lib/stackdepot.c:662
 kasan_save_stack mm/kasan/common.c:48 [inline]
 kasan_save_track+0x51/0x80 mm/kasan/common.c:68
 kasan_save_free_info+0x40/0x50 mm/kasan/generic.c:579
 poison_slab_object+0xe0/0x150 mm/kasan/common.c:240
 __kasan_slab_free+0x37/0x60 mm/kasan/common.c:256
 kasan_slab_free include/linux/kasan.h:184 [inline]
 slab_free_hook mm/slub.c:2252 [inline]
 slab_free mm/slub.c:4473 [inline]
 kmem_cache_free+0x145/0x350 mm/slub.c:4548
 mmdrop include/linux/sched/mm.h:55 [inline]
 mmdrop_sched include/linux/sched/mm.h:83 [inline]
 mmdrop_lazy_tlb_sched include/linux/sched/mm.h:110 [inline]
 finish_task_switch+0x304/0x870 kernel/sched/core.c:5087
 context_switch kernel/sched/core.c:5191 [inline]
 __schedule+0x1808/0x4a60 kernel/sched/core.c:6529
 preempt_schedule_common+0x84/0xd0 kernel/sched/core.c:6708
 preempt_schedule+0xe1/0xf0 kernel/sched/core.c:6732
 preempt_schedule_thunk+0x1a/0x30 arch/x86/entry/thunk.S:12
 class_preempt_destructor include/linux/preempt.h:480 [inline]
 try_to_wake_up+0x9a1/0x1470 kernel/sched/core.c:4174
 wake_up_process kernel/sched/core.c:4299 [inline]
 wake_up_q+0xc8/0x120 kernel/sched/core.c:1029
 futex_wake+0x523/0x5c0 kernel/futex/waitwake.c:199
 do_futex+0x392/0x560 kernel/futex/syscalls.c:107
 __do_sys_futex kernel/futex/syscalls.c:179 [inline]
 __se_sys_futex+0x3f9/0x480 kernel/futex/syscalls.c:160
 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: 0033:0x7f1d68d77299
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:00007ffed2e0a9e8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca
RAX: ffffffffffffffda RBX: 00007f1d68f06058 RCX: 00007f1d68d77299
RDX: 00000000000f4240 RSI: 0000000000000081 RDI: 00007f1d68f06060
RBP: 00007f1d68f06064 R08: 00007f1d68f05f80 R09: 00007ffed2e0accf
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
R13: 00007f1d68f06058 R14: 0000000000000003 R15: 0000000000000c03
 </TASK>
sched: RT throttling activated