rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: 	0-....: (0 ticks this GP) idle=8a1c/1/0x4000000000000000 softirq=20175/20175 fqs=2100
rcu: 	         hardirqs   softirqs   csw/system
rcu: 	 number:  1198227          0            0
rcu: 	cputime:    16570      35988            0   ==> 52550(ms)
rcu: 	(detected by 1, t=10506 jiffies, g=11081, q=2099 ncpus=2)
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 UID: 0 PID: 7128 Comm: syz.2.375 Not tainted 6.16.0-rc6-syzkaller-00411-g95993dc3039e-dirty #0 PREEMPT(full) 
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
RIP: 0010:perf_swevent_event+0x57e/0x5e0
Code: 68 4d d0 ff eb c1 e8 61 4d d0 ff eb 1d e8 5a 4d d0 ff eb 0c e8 53 4d d0 ff eb 05 e8 4c 4d d0 ff 49 bd 00 00 00 00 00 fc ff df <48> c7 44 24 40 0e 36 e0 45 4a c7 04 2b 00 00 00 00 65 48 8b 05 c9
RSP: 0018:ffffc90000007020 EFLAGS: 00000046
RAX: 0000000000000000 RBX: 1ffff92000000e0c RCX: ffff88801f641cc0
RDX: 0000000000000100 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffffc900000070f0 R08: ffffc90000006be7 R09: 1ffff92000000d7c
R10: dffffc0000000000 R11: fffff52000000d7d R12: 0000000000000001
R13: dffffc0000000000 R14: ffff88804b032a58 R15: ffff88803b468c80
FS:  00007fd0ee8346c0(0000) GS:ffff8880b861f000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fd0edba7258 CR3: 00000000389e8000 CR4: 00000000000006f0
DR0: 0000000000000000 DR1: 0000000000000082 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600
Call Trace:
 <IRQ>
 perf_tp_event+0x4f6/0x1380
 perf_trace_run_bpf_submit+0xee/0x170
 perf_trace_preemptirq_template+0x280/0x340
 trace_irq_enable+0xee/0x110
 trace_hardirqs_on+0x18/0x40
 irqentry_exit+0x74/0x90
 asm_sysvec_irq_work+0x1a/0x20
RIP: 0010:rcu_read_unlock_special+0x87/0x4c0
Code: f1 f1 f1 00 f2 f2 f2 4a 89 04 2b 66 42 c7 44 2b 09 f3 f3 42 c6 44 2b 0b f3 65 44 8b 35 d2 2c f8 10 41 f7 c6 00 00 f0 00 74 49 <48> c7 44 24 40 0e 36 e0 45 4a c7 04 2b 00 00 00 00 66 42 c7 44 2b
RSP: 0018:ffffc900000075a0 EFLAGS: 00000206
RAX: d57119ce2f5e3400 RBX: 1ffff92000000ebc RCX: d57119ce2f5e3400
RDX: 0000000000000002 RSI: ffffffff8d998874 RDI: ffffffff8be29f40
RBP: ffffc90000007698 R08: ffffffff8fa1e8f7 R09: 1ffffffff1f43d1e
R10: dffffc0000000000 R11: fffffbfff1f43d1f R12: ffffffff8e144400
R13: dffffc0000000000 R14: 0000000000000246 R15: 0000000000000001
 __rcu_read_unlock+0x84/0xe0
 unwind_next_frame+0x19ae/0x2390
 arch_stack_walk+0x11c/0x150
 stack_trace_save+0x9c/0xe0
 kasan_save_track+0x3e/0x80
 kasan_save_free_info+0x46/0x50
 __kasan_slab_free+0x62/0x70
 kfree+0x18e/0x440
 slab_free_after_rcu_debug+0x60/0x2a0
 rcu_core+0xca8/0x1710
 handle_softirqs+0x286/0x870
 __irq_exit_rcu+0xca/0x1f0
 irq_exit_rcu+0x9/0x30
 sysvec_apic_timer_interrupt+0xa6/0xc0
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x1a/0x20
RIP: 0010:_raw_spin_unlock_irqrestore+0xa8/0x110
Code: 74 05 e8 5b 9e 56 f6 48 c7 44 24 20 00 00 00 00 9c 8f 44 24 20 f6 44 24 21 02 75 4f f7 c3 00 02 00 00 74 01 fb bf 01 00 00 00 <e8> a3 cc 1f f6 65 8b 05 bc f9 2e 07 85 c0 74 40 48 c7 04 24 0e 36
RSP: 0018:ffffc90007176600 EFLAGS: 00000206
RAX: d57119ce2f5e3400 RBX: 0000000000000a06 RCX: d57119ce2f5e3400
RDX: 0000000000000006 RSI: ffffffff8d998874 RDI: 0000000000000001
RBP: ffffc90007176688 R08: ffffffff8fa1e8f7 R09: 1ffffffff1f43d1e
R10: dffffc0000000000 R11: fffffbfff1f43d1f R12: dffffc0000000000
R13: 0000000000000000 R14: ffff88804b025940 R15: 1ffff92000e2ecc0
 __try_to_del_timer_sync+0x34a/0x3a0
 __timer_delete_sync+0x1fe/0x2d0
 neigh_ifdown+0x1f/0x30
 rt6_disable_ip+0x6b3/0x720
 addrconf_ifdown+0x15d/0x1880
 addrconf_notify+0x1bc/0x1010
 notifier_call_chain+0x1b6/0x3e0
 __dev_notify_flags+0x18d/0x2e0
 netif_change_flags+0xe8/0x1a0
 do_setlink+0xc55/0x41c0
 rtnl_newlink+0x160b/0x1c70
 rtnetlink_rcv_msg+0x7cf/0xb70
 netlink_rcv_skb+0x208/0x470
 netlink_unicast+0x75c/0x8e0
 netlink_sendmsg+0x805/0xb30
 __sock_sendmsg+0x21c/0x270
 ____sys_sendmsg+0x505/0x830
 ___sys_sendmsg+0x21f/0x2a0
 __x64_sys_sendmsg+0x19b/0x260
 do_syscall_64+0xfa/0x3b0
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fd0ed98e9a9
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:00007fd0ee834038 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 00007fd0edbb5fa0 RCX: 00007fd0ed98e9a9
RDX: 0000000000000000 RSI: 0000200000000080 RDI: 000000000000000a
RBP: 00007fd0eda10d69 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007fd0edbb5fa0 R15: 00007ffc8ab73a68
 </TASK>
