rcu: INFO: rcu_preempt self-detected stall on CPU
rcu: 	0-....: (1 GPs behind) idle=9b1/1/0x4000000000000000 softirq=46202/46203 fqs=4532 
	(t=10500 jiffies g=67777 q=2024)
NMI backtrace for cpu 0
CPU: 0 PID: 17239 Comm: syz.3.4167 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/07/2026
Call Trace:
 <IRQ>
 dump_stack_lvl+0x188/0x250 lib/dump_stack.c:106
 nmi_cpu_backtrace+0x3a2/0x3d0 lib/nmi_backtrace.c:111
 nmi_trigger_cpumask_backtrace+0x163/0x280 lib/nmi_backtrace.c:62
 trigger_single_cpu_backtrace include/linux/nmi.h:166 [inline]
 rcu_dump_cpu_stacks+0x22d/0x380 kernel/rcu/tree_stall.h:349
 print_cpu_stall+0x31f/0x5f0 kernel/rcu/tree_stall.h:633
 check_cpu_stall kernel/rcu/tree_stall.h:727 [inline]
 rcu_pending kernel/rcu/tree.c:3936 [inline]
 rcu_sched_clock_irq+0x6ec/0x1120 kernel/rcu/tree.c:2619
 update_process_times+0x193/0x200 kernel/time/timer.c:2021
 tick_sched_handle kernel/time/tick-sched.c:254 [inline]
 tick_sched_timer+0x37d/0x560 kernel/time/tick-sched.c:1473
 __run_hrtimer kernel/time/hrtimer.c:1685 [inline]
 __hrtimer_run_queues+0x4b0/0xb60 kernel/time/hrtimer.c:1749
 hrtimer_interrupt+0x397/0x8b0 kernel/time/hrtimer.c:1811
 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1097 [inline]
 __sysvec_apic_timer_interrupt+0x137/0x4a0 arch/x86/kernel/apic/apic.c:1114
 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1108 [inline]
 sysvec_apic_timer_interrupt+0x4d/0xc0 arch/x86/kernel/apic/apic.c:1108
 asm_sysvec_apic_timer_interrupt+0x16/0x20 arch/x86/include/asm/idtentry.h:676
RIP: 0010:put_pid+0xbe/0x120 kernel/pid.c:109
Code: 48 c1 e8 03 42 80 3c 38 00 74 05 e8 7c f8 6e 00 49 8b 7e 78 48 89 de e8 f0 2f 6e 00 4c 89 f7 5b 41 5e 41 5f 5d e9 f2 29 26 00 <e8> 2d b0 29 00 eb 15 bf 01 00 00 00 89 ee e8 7f b3 29 00 85 ed 7e
RSP: 0018:ffffc90000007900 EFLAGS: 00000246
RAX: ffffffff814f7cae RBX: 0000000000000000 RCX: ffff888060a75940
RDX: 0000000000000100 RSI: 0000000000000000 RDI: 0000000000000000
RBP: dffffc0000000000 R08: ffff88807676ee73 R09: 1ffff1100eceddce
R10: dffffc0000000000 R11: ffffed100eceddcf R12: 0000000000000000
R13: ffff88807676ec00 R14: ffff88807676f108 R15: 0000000000000000
 __sk_destruct+0x406/0x840 net/core/sock.c:1986
 tcp_wfree+0x21e/0x540 net/ipv4/tcp_output.c:1181
 skb_release_head_state+0xf6/0x240 net/core/skbuff.c:729
 skb_release_all net/core/skbuff.c:740 [inline]
 __kfree_skb net/core/skbuff.c:756 [inline]
 kfree_skb_reason+0x7f/0x110 net/core/skbuff.c:776
 neigh_invalidate+0x23b/0x460 net/core/neighbour.c:1001
 neigh_timer_handler+0x90d/0xff0 net/core/neighbour.c:1088
 call_timer_fn+0x17b/0x540 kernel/time/timer.c:1648
 expire_timers kernel/time/timer.c:1699 [inline]
 __run_timers+0x56c/0x810 kernel/time/timer.c:1970
 run_timer_softirq+0x63/0xf0 kernel/time/timer.c:1983
 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:generic_exec_single+0x37d/0x470 kernel/smp.c:532
Code: df eb 27 e8 35 86 0b 00 0f 0b e9 ac fd ff ff e8 29 86 0b 00 e8 f4 e3 5b 08 48 85 db 0f 84 5c ff ff ff e8 16 86 0b 00 fb 31 c0 <48> c7 44 24 20 0e 36 e0 45 4b c7 44 3d 00 00 00 00 00 43 c7 44 3d
RSP: 0018:ffffc9000363fa60 EFLAGS: 00000246
RAX: 0000000000000000 RBX: 0000000000000200 RCX: 0000000000080000
RDX: ffffc90014c5e000 RSI: 000000000000193a RDI: 000000000000193b
RBP: ffffc9000363fb30 R08: ffffffff910471d7 R09: 1ffffffff2208e3a
R10: dffffc0000000000 R11: fffffbfff2208e3b R12: ffffc9000363fb88
R13: 1ffff920006c7f50 R14: 0000000000000000 R15: dffffc0000000000
 smp_call_function_single+0x202/0x4c0 kernel/smp.c:755
 task_function_call kernel/events/core.c:120 [inline]
 perf_install_in_context+0x5cf/0x930 kernel/events/core.c:3026
 __do_sys_perf_event_open kernel/events/core.c:12805 [inline]
 __se_sys_perf_event_open+0x12b0/0x1bb0 kernel/events/core.c:12399
 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: 0033:0x7f629f08db19
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:00007f629d2c3028 EFLAGS: 00000246 ORIG_RAX: 000000000000012a
RAX: ffffffffffffffda RBX: 00007f629f314090 RCX: 00007f629f08db19
RDX: ffffffffffffffff RSI: 0000000000000000 RDI: 0000200000000700
RBP: 00007f629f125b70 R08: 0000000000000000 R09: 0000000000000000
R10: ffffffffffffffff R11: 0000000000000246 R12: 0000000000000000
R13: 00007f629f314128 R14: 00007f629f314090 R15: 00007ffd63303ae8
 </TASK>