rcu: INFO: rcu_preempt detected expedited stalls on CPUs/tasks: { 0-.... } 2676 jiffies s: 18997 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 PID: 8736 Comm: syz.2.4095 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026
RIP: 0010:perf_prepare_sample+0x1969/0x2020 kernel/events/core.c:7712
Code: 01 00 00 48 8b 44 24 08 0f b7 18 89 de 83 e6 07 31 ff e8 2a 66 dd ff 83 e3 07 75 41 e8 40 63 dd ff 48 c7 44 24 60 0e 36 e0 45 <48> 8b 44 24 58 4a c7 04 38 00 00 00 00 65 48 8b 04 25 28 00 00 00
RSP: 0018:ffffc900000072a0 EFLAGS: 00000046
RAX: ffffffff81a51860 RBX: 0000000000000000 RCX: ffff88802dff8000
RDX: 0000000000000100 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffffc90000007390 R08: ffffc90000007417 R09: ffffc900000073e0
R10: dffffc0000000000 R11: fffff52000000e83 R12: dffffc0000000000
R13: ffff88807503d400 R14: 0000000000000000 R15: dffffc0000000000
FS: 0000555568c2d500(0000) GS:ffff8880b8e00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b2d263fff CR3: 000000002a576000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
<IRQ>
__perf_event_output kernel/events/core.c:7730 [inline]
perf_event_output_forward+0x197/0x2f0 kernel/events/core.c:7750
__perf_event_overflow+0x448/0x610 kernel/events/core.c:9496
perf_swevent_overflow kernel/events/core.c:9579 [inline]
perf_swevent_event+0x315/0x570 kernel/events/core.c:9630
perf_tp_event+0x3e7/0xc30 kernel/events/core.c:10064
perf_trace_run_bpf_submit+0xf3/0x1c0 kernel/events/core.c:10032
perf_trace_preemptirq_template+0x268/0x320 include/trace/events/preemptirq.h:14
trace_irq_enable_rcuidle+0xd3/0x140 include/trace/events/preemptirq.h:40
trace_hardirqs_on+0x24/0x40 kernel/trace/trace_preemptirq.c:44
asm_sysvec_irq_work+0x16/0x20 arch/x86/include/asm/idtentry.h:728
RIP: 0010:rcu_read_unlock_special+0x7f/0x510 kernel/rcu/tree_plugin.h:685
Code: eb 03 48 b8 f1 f1 f1 f1 f8 f2 f2 f2 4a 89 04 2b 42 c7 44 2b 08 f8 f3 f3 f3 65 44 8b 35 82 30 95 7e 41 f7 c6 00 00 f0 00 74 40 <48> c7 44 24 40 0e 36 e0 45 4a c7 04 2b 00 00 00 00 42 c7 44 2b 08
RSP: 0018:ffffc90000007ac0 EFLAGS: 00000206
RAX: e849770a43143900 RBX: 1ffff92000000f60 RCX: e849770a43143900
RDX: dffffc0000000000 RSI: ffffffff8a8c1aa0 RDI: ffffffff8adf2060
RBP: ffffc90000007bc0 R08: ffffffff90aff347 R09: 1ffffffff215fe68
R10: dffffc0000000000 R11: fffffbfff215fe69 R12: 0000000000000246
R13: dffffc0000000000 R14: ffff8880b8e3b900 R15: 0000000000000001
__rcu_read_unlock+0x78/0xd0 kernel/rcu/tree_plugin.h:426
rcu_read_unlock include/linux/rcupdate.h:823 [inline]
ieee80211_rx_napi+0x221/0x3d0 net/mac80211/rx.c:5339
ieee80211_rx include/net/mac80211.h:4849 [inline]
ieee80211_handle_queued_frames+0x105/0x1b0 net/mac80211/main.c:317
tasklet_action_common+0x2fe/0x4d0 kernel/softirq.c:827
handle_softirqs+0x2a1/0x930 kernel/softirq.c:596
__do_softirq kernel/softirq.c:630 [inline]
invoke_softirq kernel/softirq.c:470 [inline]
__irq_exit_rcu+0x13b/0x230 kernel/softirq.c:679
irq_exit_rcu+0x5/0x20 kernel/softirq.c:691
instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1118 [inline]
sysvec_apic_timer_interrupt+0xa0/0xc0 arch/x86/kernel/apic/apic.c:1118
</IRQ>
<TASK>
asm_sysvec_apic_timer_interrupt+0x16/0x20 arch/x86/include/asm/idtentry.h:691
RIP: 0010:lock_acquire+0x225/0x4a0 kernel/locking/lockdep.c:5666
Code: f7 84 24 80 00 00 00 00 02 00 00 43 c6 44 3d 04 f8 0f 85 f0 00 00 00 41 f7 c6 00 02 00 00 74 01 fb 48 c7 44 24 60 0e 36 e0 45 <4b> c7 44 3d 00 00 00 00 00 43 c7 44 3d 08 00 00 00 00 65 48 8b 04
RSP: 0018:ffffc9000d1b79a0 EFLAGS: 00000206
RAX: 0000000000000001 RBX: 0000000000000000 RCX: e849770a43143900
RDX: 0000000000000000 RSI: ffffffff8a8c2c20 RDI: ffffffff8adf2060
RBP: ffffc9000d1b7aa8 R08: dffffc0000000000 R09: 1ffffffff215fe68
R10: dffffc0000000000 R11: fffffbfff215fe69 R12: 0000000000000000
R13: 1ffff92001a36f40 R14: 0000000000000246 R15: dffffc0000000000
__mutex_lock_common kernel/locking/mutex.c:603 [inline]
__mutex_lock+0x12d/0xaf0 kernel/locking/mutex.c:747
perf_remove_from_owner+0x242/0x490 kernel/events/core.c:5140
perf_event_release_kernel+0x13c/0x8d0 kernel/events/core.c:5187
perf_release+0x37/0x40 kernel/events/core.c:5297
__fput+0x22c/0x920 fs/file_table.c:320
task_work_run+0x1d0/0x260 kernel/task_work.c:203
resume_user_mode_work include/linux/resume_user_mode.h:49 [inline]
exit_to_user_mode_loop+0xe6/0x110 kernel/entry/common.c:177
exit_to_user_mode_prepare+0xee/0x180 kernel/entry/common.c:210
__syscall_exit_to_user_mode_work kernel/entry/common.c:292 [inline]
syscall_exit_to_user_mode+0x16/0x40 kernel/entry/common.c:303
do_syscall_64+0x58/0xa0 arch/x86/entry/common.c:82
entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7fe6c6d9ce59
Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 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 e8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fffd6673548 EFLAGS: 00000246 ORIG_RAX: 00000000000001b4
RAX: 0000000000000000 RBX: 00007fffd6673630 RCX: 00007fe6c6d9ce59
RDX: 0000000000000000 RSI: 000000000000001e RDI: 0000000000000003
RBP: 00000000000357e5 R08: 0000000000000001 R09: 0000000000000000
R10: 0000001b2c620000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fe6c7015fac R14: 00007fe6c7015fa8 R15: 00007fe6c7015fa0
</TASK>