rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: 	0-....: (52 ticks this GP) idle=fa84/1/0x4000000000000000 softirq=297776/297777 fqs=43482
rcu: 	(detected by 1, t=105002 jiffies, g=213053, q=54260 ncpus=2)
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 PID: 5083 Comm: syz-executor.0 Not tainted 6.5.0-rc1-next-20230714 #1
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014
RIP: 0010:native_apic_mem_read+0x3a/0x50
Code: fb 48 8d bb 00 c0 5f ff 48 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 0c 8b 83 00 c0 5f ff <5b> e9 60 1f 44 03 e8 7b e8 6f 00 eb ed 66 0f 1f 84 00 00 00 00 00
RSP: 0018:ffff88806ce09310 EFLAGS: 00000046
RAX: 00000000000400f6 RBX: 0000000000000300 RCX: 0000000000000100
RDX: 0000000000000000 RSI: ffffffff815a0c3c RDI: ffffffffff5fc300
RBP: fffffbfff0a5c394 R08: 0000000000000001 R09: 0000000000000000
R10: 0000000000000001 R11: 0000000000000001 R12: dffffc0000000000
R13: ffff88806ce3a330 R14: 0000000000000000 R15: 0000000000000000
FS:  00007fd1b3ef6700(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000559265580df8 CR3: 00000000438a8000 CR4: 0000000000350ef0
Call Trace:
 <NMI>
 </NMI>
 <IRQ>
 native_apic_wait_icr_idle+0x51/0x80
 __irq_work_queue_local+0xc1/0x2f0
 irq_work_queue_on+0x122/0x130
 __rcu_read_unlock+0x3f0/0x4f0
 perf_event_output_forward+0x21c/0x3c0
 __perf_event_overflow+0x4c2/0x9e0
 perf_swevent_event+0x2c6/0x3f0
 perf_tp_event+0x2dd/0x1280
 perf_trace_run_bpf_submit+0xf3/0x190
 perf_trace_preemptirq_template+0x252/0x420
 trace_hardirqs_on+0xce/0x100
 asm_sysvec_irq_work+0x1a/0x20
RIP: 0010:__rcu_read_unlock+0xc8/0x4f0
Code: b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 0f b6 04 02 84 c0 74 08 3c 03 0f 8e 76 01 00 00 8b 85 f8 03 00 00 85 c0 75 58 <65> 48 8b 1c 25 00 8b 03 00 48 8d bb f4 03 00 00 48 b8 00 00 00 00
RSP: 0018:ffff88806ce099f8 EFLAGS: 00000202
RAX: 0000000000028968 RBX: ffff88806ce3a300 RCX: ffffffff812d209f
RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffffff81378761
RBP: ffffffff85616a00 R08: 0000000000000001 R09: fffffbfff0efa761
R10: ffffffff877d3b0f R11: 0000000000000001 R12: 0000000000000001
R13: dffffc0000000000 R14: 0000000000000200 R15: ffff88800dbca1b0
 __is_insn_slot_addr+0x12f/0x290
 kernel_text_address+0x5b/0xc0
 __kernel_text_address+0xd/0x40
 unwind_get_return_address+0x59/0xa0
 arch_stack_walk+0x9d/0xf0
 stack_trace_save+0x90/0xd0
 kasan_save_stack+0x22/0x50
 kasan_set_track+0x25/0x30
 kasan_save_free_info+0x2b/0x50
 __kasan_slab_free+0x10a/0x190
 kmem_cache_free+0x10d/0x4d0
 rcu_core+0x8c8/0x28b0
 __do_softirq+0x1b7/0x7d4
 irq_exit_rcu+0x93/0xc0
 sysvec_apic_timer_interrupt+0x6e/0x90
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x1a/0x20
RIP: 0010:finish_task_switch.isra.0+0x20d/0x830
Code: 89 ff 48 c7 03 00 00 00 00 e8 4f 78 32 03 4d 85 e4 75 ba 4c 89 ff e8 22 53 32 03 e8 2d 58 30 00 fb 65 48 8b 1c 25 00 8b 03 00 <48> 8d bb 78 14 00 00 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1
RSP: 0018:ffff888043dbf2f8 EFLAGS: 00000202
RAX: 00000000000270fb RBX: ffff8880436bb680 RCX: ffffffff812d209f
RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffffff81236043
RBP: ffff888043dbf338 R08: 0000000000000001 R09: fffffbfff0efa761
R10: ffffffff877d3b0f R11: 0000000000000001 R12: ffff88806ce39558
R13: ffff888008d90000 R14: ffff888008d43b28 R15: ffff88806ce39540
 __schedule+0x9b1/0x2b00
 __cond_resched+0x46/0x70
 __mutex_lock+0xa3/0x1a30
 __ipv6_dev_mc_inc+0xb6/0xc40
 ipv6_add_dev+0xa8d/0x1350
 addrconf_notify+0x635/0x19a0
 notifier_call_chain+0xbb/0x310
 call_netdevice_notifiers_info+0xb9/0x130
 register_netdevice+0xf47/0x1530
 register_netdev+0x31/0x60
 loopback_net_init+0x7a/0x180
 ops_init+0xbb/0x6b0
 setup_net+0x3d9/0x990
 copy_net_ns+0x321/0x770
 create_new_namespaces+0x3f6/0xb30
 copy_namespaces+0x414/0x500
 copy_process+0x2b78/0x7320
 kernel_clone+0xeb/0x7d0
 __do_sys_clone3+0x1d5/0x250
 do_syscall_64+0x3f/0x90
 entry_SYSCALL_64_after_hwframe+0x6e/0xd8
RIP: 0033:0x7fd1b6980b19
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 bc ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fd1b3ef6188 EFLAGS: 00000246 ORIG_RAX: 00000000000001b3
RAX: ffffffffffffffda RBX: 00007fd1b6a93f60 RCX: 00007fd1b6980b19
RDX: 0000000000000000 RSI: 0000000000000058 RDI: 0000000020004c00
RBP: 00007fd1b69daf6d R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fffc5776a9f R14: 00007fd1b3ef6300 R15: 0000000000022000
 </TASK>
----------------
Code disassembly (best guess):
   0:	fb                   	sti
   1:	48 8d bb 00 c0 5f ff 	lea    -0xa04000(%rbx),%rdi
   8:	48 89 fa             	mov    %rdi,%rdx
   b:	48 c1 ea 03          	shr    $0x3,%rdx
   f:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
  13:	48 89 f8             	mov    %rdi,%rax
  16:	83 e0 07             	and    $0x7,%eax
  19:	83 c0 03             	add    $0x3,%eax
  1c:	38 d0                	cmp    %dl,%al
  1e:	7c 04                	jl     0x24
  20:	84 d2                	test   %dl,%dl
  22:	75 0c                	jne    0x30
  24:	8b 83 00 c0 5f ff    	mov    -0xa04000(%rbx),%eax
* 2a:	5b                   	pop    %rbx <-- trapping instruction
  2b:	e9 60 1f 44 03       	jmpq   0x3441f90
  30:	e8 7b e8 6f 00       	callq  0x6fe8b0
  35:	eb ed                	jmp    0x24
  37:	66 0f 1f 84 00 00 00 	nopw   0x0(%rax,%rax,1)
  3e:	00 00