------------[ cut here ]------------
WARNING: CPU: 0 PID: 9 at kernel/rcu/tree_stall.h:989 rcu_check_gp_start_stall.part.0+0x1c4/0x4b0 kernel/rcu/tree_stall.h:989
Modules linked in:
CPU: 0 UID: 0 PID: 9 Comm: kworker/0:1 Not tainted 6.13.0-rc2-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
Workqueue: events_long defense_work_handler
RIP: 0010:rcu_check_gp_start_stall.part.0+0x1c4/0x4b0 kernel/rcu/tree_stall.h:989
Code: 88 61 01 00 00 be 04 00 00 00 48 c7 c7 60 99 84 9a e8 30 b9 7c 00 b8 01 00 00 00 87 05 85 8c 04 19 85 c0 0f 85 3d 01 00 00 90 <0f> 0b 90 48 81 fd c0 66 1c 8e 48 c7 c3 f4 48 5f 90 74 5a 48 b8 00
RSP: 0018:ffffc90000007e08 EFLAGS: 00010046
RAX: 0000000000000000 RBX: 0000000000002904 RCX: ffffffff81800cd0
RDX: fffffbfff350932c RSI: 0000000000000004 RDI: ffffffff9a849960
RBP: ffffffff8e1c66c0 R08: 0000000000000001 R09: fffffbfff350932c
R10: 0000000000000003 R11: 0000000000000002 R12: 1ffffffff1bc2040
R13: 0000000000000246 R14: ffffffff8e1c66c0 R15: ffff8880b863fb92
FS:  0000000000000000(0000) GS:ffff8880b8600000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f8a17347bac CR3: 00000000281e8000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <IRQ>
 rcu_check_gp_start_stall kernel/rcu/tree_stall.h:952 [inline]
 rcu_core+0x4d0/0x14d0 kernel/rcu/tree.c:2818
 handle_softirqs+0x213/0x8f0 kernel/softirq.c:554
 do_softirq kernel/softirq.c:455 [inline]
 do_softirq+0xb2/0xf0 kernel/softirq.c:442
 </IRQ>
 <TASK>
 __local_bh_enable_ip+0x100/0x120 kernel/softirq.c:382
 local_bh_enable include/linux/bottom_half.h:33 [inline]
 update_defense_level+0x5ce/0xf50 net/netfilter/ipvs/ip_vs_ctl.c:210
 defense_work_handler+0x26/0xd0 net/netfilter/ipvs/ip_vs_ctl.c:235
 process_one_work+0x9c5/0x1ba0 kernel/workqueue.c:3229
 process_scheduled_works kernel/workqueue.c:3310 [inline]
 worker_thread+0x6c8/0xf00 kernel/workqueue.c:3391
 kthread+0x2c1/0x3a0 kernel/kthread.c:389
 ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:147
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
 </TASK>