rcu: INFO: rcu_preempt self-detected stall on CPU
rcu: 	1-....: (1 GPs behind) idle=d07/1/0x4000000000000000 softirq=46092/46093 fqs=5169 
	(t=10502 jiffies g=76941 q=2116)
NMI backtrace for cpu 1
CPU: 1 PID: 18954 Comm: kworker/1:9 Not tainted 5.15.0-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Workqueue: events prog_array_map_clear_deferred
Call Trace:
 <IRQ>
 __dump_stack lib/dump_stack.c:88 [inline]
 dump_stack_lvl+0xcd/0x134 lib/dump_stack.c:106
 nmi_cpu_backtrace.cold+0x47/0x144 lib/nmi_backtrace.c:105
 nmi_trigger_cpumask_backtrace+0x1ae/0x220 lib/nmi_backtrace.c:62
 trigger_single_cpu_backtrace include/linux/nmi.h:164 [inline]
 rcu_dump_cpu_stacks+0x25e/0x3f0 kernel/rcu/tree_stall.h:343
 print_cpu_stall kernel/rcu/tree_stall.h:627 [inline]
 check_cpu_stall kernel/rcu/tree_stall.h:711 [inline]
 rcu_pending kernel/rcu/tree.c:3878 [inline]
 rcu_sched_clock_irq.cold+0x9d/0x746 kernel/rcu/tree.c:2597
 update_process_times+0x16d/0x200 kernel/time/timer.c:1785
 tick_sched_handle+0x9b/0x180 kernel/time/tick-sched.c:226
 tick_sched_timer+0x1b0/0x2d0 kernel/time/tick-sched.c:1421
 __run_hrtimer kernel/time/hrtimer.c:1685 [inline]
 __hrtimer_run_queues+0x1c0/0xe50 kernel/time/hrtimer.c:1749
 hrtimer_interrupt+0x31c/0x790 kernel/time/hrtimer.c:1811
 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1086 [inline]
 __sysvec_apic_timer_interrupt+0x146/0x530 arch/x86/kernel/apic/apic.c:1103
 sysvec_apic_timer_interrupt+0x8e/0xc0 arch/x86/kernel/apic/apic.c:1097
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:638
RIP: 0010:bpf_fd_array_map_clear kernel/bpf/arraymap.c:870 [inline]
RIP: 0010:prog_array_map_clear_deferred+0x125/0x1b0 kernel/bpf/arraymap.c:1050
Code: e8 d0 e4 e9 ff 4c 89 ee 48 89 ef e8 55 dc ff ff 8b 44 24 38 44 8d 70 01 89 44 24 04 44 89 74 24 38 41 0f b6 14 24 38 d3 7c 04 <84> d2 75 64 44 8b 7d 24 44 89 f6 44 89 ff e8 c8 ec e9 ff 45 39 f7
RSP: 0018:ffffc90003cdfc70 EFLAGS: 00000202
RAX: 00000000071cd28f RBX: 0000000000000007 RCX: 0000000000000000
RDX: 0000000000000000 RSI: ffffffff818d6c34 RDI: ffffc90003cdfb80
RBP: ffffc90017891000 R08: 0000000000000001 R09: ffffc90003cdfb87
R10: fffff5200079bf70 R11: 0000000000000000 R12: fffff52002f12204
R13: ffffc90003cdfca8 R14: 00000000071cd290 R15: 0000000008000009
 process_one_work+0x9b2/0x1690 kernel/workqueue.c:2297
 worker_thread+0x658/0x11f0 kernel/workqueue.c:2444
 kthread+0x405/0x4f0 kernel/kthread.c:327
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295
 </TASK>
----------------
Code disassembly (best guess):
   0:	e8 d0 e4 e9 ff       	callq  0xffe9e4d5
   5:	4c 89 ee             	mov    %r13,%rsi
   8:	48 89 ef             	mov    %rbp,%rdi
   b:	e8 55 dc ff ff       	callq  0xffffdc65
  10:	8b 44 24 38          	mov    0x38(%rsp),%eax
  14:	44 8d 70 01          	lea    0x1(%rax),%r14d
  18:	89 44 24 04          	mov    %eax,0x4(%rsp)
  1c:	44 89 74 24 38       	mov    %r14d,0x38(%rsp)
  21:	41 0f b6 14 24       	movzbl (%r12),%edx
  26:	38 d3                	cmp    %dl,%bl
  28:	7c 04                	jl     0x2e
* 2a:	84 d2                	test   %dl,%dl <-- trapping instruction
  2c:	75 64                	jne    0x92
  2e:	44 8b 7d 24          	mov    0x24(%rbp),%r15d
  32:	44 89 f6             	mov    %r14d,%esi
  35:	44 89 ff             	mov    %r15d,%edi
  38:	e8 c8 ec e9 ff       	callq  0xffe9ed05
  3d:	45 39 f7             	cmp    %r14d,%r15d