rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: 	0-....: (1 GPs behind) idle=ae5/1/0x4000000000000002 softirq=26880/26881 fqs=2099 
	(detected by 1, t=10502 jiffies, g=35673, q=1488)
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 PID: 11236 Comm: syz.6.1450 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
RIP: 0010:perf_event_clock kernel/events/core.c:593 [inline]
RIP: 0010:__perf_event_header__init_id+0x2b1/0x4f0 kernel/events/core.c:7120
Code: 6d e1 ff 48 89 d8 48 83 e0 04 75 07 e8 88 69 e1 ff eb 44 e8 81 69 e1 ff 4d 8d be 18 05 00 00 4c 89 f8 48 c1 e8 03 80 3c 28 00 <74> 08 4c 89 ff e8 25 9d 26 00 41 ff 17 49 89 c7 4d 8d 65 50 4c 89
RSP: 0018:ffffc90000007378 EFLAGS: 00000046
RAX: 1ffff1100f5b8e11 RBX: 0000000000002104 RCX: ffff888047d28000
RDX: 0000000000000100 RSI: 0000000000000004 RDI: 0000000000000000
RBP: dffffc0000000000 R08: ffffc90000007537 R09: ffffc90000007500
R10: dffffc0000000000 R11: fffff52000000ea7 R12: ffff88807adc6cca
R13: ffffc900000076c0 R14: ffff88807adc6b70 R15: ffff88807adc7088
FS:  00007f384cb416c0(0000) GS:ffff8880b9000000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000200000007000 CR3: 0000000079f1c000 CR4: 00000000003506f0
DR0: 0000200000000300 DR1: 0000200000000300 DR2: 0000200000000300
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600
Call Trace:
 <IRQ>
 perf_prepare_sample+0x158/0x1cb0 kernel/events/core.c:7634
 __perf_event_output kernel/events/core.c:7812 [inline]
 perf_event_output_forward+0x185/0x2e0 kernel/events/core.c:7832
 __perf_event_overflow+0x35f/0x550 kernel/events/core.c:9525
 perf_tp_event+0x324/0xbe0 kernel/events/core.c:10057
 perf_trace_run_bpf_submit+0xf3/0x1c0 kernel/events/core.c:10031
 perf_trace_preemptirq_template+0x2aa/0x360 include/trace/events/preemptirq.h:14
 trace_irq_enable_rcuidle+0x108/0x180 include/trace/events/preemptirq.h:40
 trace_hardirqs_on+0x57/0x80 kernel/trace/trace_preemptirq.c:44
 asm_sysvec_irq_work+0x16/0x20 arch/x86/include/asm/idtentry.h:713
RIP: 0010:rcu_read_unlock_special+0x7f/0x4a0 kernel/rcu/tree_plugin.h:674
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 42 0b 9d 7e 41 f7 c6 00 00 f0 00 74 40 <48> c7 44 24 20 0e 36 e0 45 4a c7 04 2b 00 00 00 00 42 c7 44 2b 08
RSP: 0018:ffffc90000007b00 EFLAGS: 00000206
RAX: 7fd582bf5cf6b600 RBX: 1ffff92000000f64 RCX: 7fd582bf5cf6b600
RDX: dffffc0000000000 RSI: ffffffff8a2b2be0 RDI: ffffffff8a7a48c0
RBP: ffffc90000007bd8 R08: ffffffff901f10f7 R09: 1ffffffff203e21e
R10: dffffc0000000000 R11: fffffbfff203e21f R12: ffffffff8c323400
R13: dffffc0000000000 R14: 0000000000000246 R15: 0000000000000001
 __rcu_read_unlock+0x78/0xd0 kernel/rcu/tree_plugin.h:422
 rcu_read_unlock include/linux/rcupdate.h:772 [inline]
 ieee80211_iterate_active_interfaces_atomic+0x132/0x140 net/mac80211/util.c:831
 mac80211_hwsim_beacon+0x9b/0x180 drivers/net/wireless/mac80211_hwsim.c:1865
 __run_hrtimer kernel/time/hrtimer.c:1685 [inline]
 __hrtimer_run_queues+0x4ea/0xb60 kernel/time/hrtimer.c:1749
 hrtimer_run_softirq+0x176/0x240 kernel/time/hrtimer.c:1766
 handle_softirqs+0x336/0x830 kernel/softirq.c:576
 __do_softirq kernel/softirq.c:610 [inline]
 invoke_softirq kernel/softirq.c:450 [inline]
 __irq_exit_rcu+0x13b/0x230 kernel/softirq.c:659
 irq_exit_rcu+0x5/0x20 kernel/softirq.c:671
 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1108 [inline]
 sysvec_apic_timer_interrupt+0xa0/0xc0 arch/x86/kernel/apic/apic.c:1108
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x16/0x20 arch/x86/include/asm/idtentry.h:676
RIP: 0010:p4d_none arch/x86/include/asm/pgtable.h:872 [inline]
RIP: 0010:pud_alloc include/linux/mm.h:2185 [inline]
RIP: 0010:__handle_mm_fault mm/memory.c:4720 [inline]
RIP: 0010:handle_mm_fault+0x4b0/0x4440 mm/memory.c:4883
Code: e3 03 49 03 1c 24 0f 84 89 07 00 00 4c 89 74 24 60 49 89 de 49 c1 ee 03 43 80 3c 2e 00 74 08 48 89 df e8 d3 fa 0f 00 4c 8b 3b <4c> 89 fe 48 83 e6 9f 31 ff e8 e2 ca ca ff 49 83 e7 9f 0f 84 34 27
RSP: 0018:ffffc90003eaf300 EFLAGS: 00000246
RAX: 1ffff110057438ca RBX: ffff888079f1c200 RCX: 0000000000000000
RDX: 0000000000000044 RSI: 0000000000000000 RDI: ffffc90003eaf428
RBP: ffffc90003eaf4b0 R08: ffffc90003eaf427 R09: ffffc90003eaf3e4
R10: dffffc0000000000 R11: fffff520007d5e85 R12: ffff88802ba1c650
R13: dffffc0000000000 R14: 1ffff1100f3e3840 R15: 0000000025f17067
 do_user_addr_fault+0x494/0xc90 arch/x86/mm/fault.c:1355
 handle_page_fault arch/x86/mm/fault.c:1443 [inline]
 exc_page_fault+0x60/0x100 arch/x86/mm/fault.c:1496
 asm_exc_page_fault+0x22/0x30 arch/x86/include/asm/idtentry.h:606
RIP: 0010:copy_user_enhanced_fast_string+0xe/0x40 arch/x86/lib/copy_user_64.S:206
Code: 89 d1 c1 e9 03 83 e2 07 f3 48 a5 89 d1 f3 a4 31 c0 0f 01 ca c3 90 90 90 90 90 90 90 0f 01 cb 83 fa 40 0f 82 70 ff ff ff 89 d1 <f3> a4 31 c0 0f 01 ca c3 90 90 90 90 90 90 90 90 90 90 89 d1 83 f8
RSP: 0018:ffffc90003eaf640 EFLAGS: 00050206
RAX: ffffffff83e72201 RBX: ffff888060c98000 RCX: 00000000000003f4
RDX: 0000000000001000 RSI: 0000200000007000 RDI: ffff888060c98c0c
RBP: 00002000000063f4 R08: ffff888060c98fff R09: 1ffff1100c1931ff
R10: dffffc0000000000 R11: ffffed100c193200 R12: 0000000000001000
R13: 00002000000073f4 R14: 00007ffffffff000 R15: ffffc90003eafcf0
 copy_user_generic arch/x86/include/asm/uaccess_64.h:37 [inline]
 raw_copy_from_user arch/x86/include/asm/uaccess_64.h:52 [inline]
 copyin lib/iov_iter.c:168 [inline]
 copy_page_from_iter_iovec lib/iov_iter.c:312 [inline]
 copy_page_from_iter+0x423/0x760 lib/iov_iter.c:911
 skb_copy_datagram_from_iter+0x2c8/0x6c0 net/core/datagram.c:587
 packet_snd net/packet/af_packet.c:3081 [inline]
 packet_sendmsg+0x35e0/0x4de0 net/packet/af_packet.c:3150
 sock_sendmsg_nosec net/socket.c:706 [inline]
 __sock_sendmsg net/socket.c:718 [inline]
 ____sys_sendmsg+0x5be/0x8f0 net/socket.c:2446
 ___sys_sendmsg+0x236/0x2e0 net/socket.c:2500
 __sys_sendmsg net/socket.c:2529 [inline]
 __do_sys_sendmsg net/socket.c:2538 [inline]
 __se_sys_sendmsg+0x1b7/0x2a0 net/socket.c:2536
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x66/0xd0
RIP: 0033:0x7f384e8e9159
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:00007f384cb41028 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 00007f384eb70fa0 RCX: 00007f384e8e9159
RDX: 0000000000000000 RSI: 00002000000000c0 RDI: 0000000000000006
RBP: 00007f384e98006b R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f384eb71038 R14: 00007f384eb70fa0 R15: 00007ffd214f9628
 </TASK>