rcu: INFO: rcu_preempt self-detected stall on CPU
rcu: 	1-....: (1 GPs behind) idle=1f3/1/0x4000000000000000 softirq=11951/11952 fqs=5122 
	(t=10502 jiffies g=14281 q=3610)
NMI backtrace for cpu 1
CPU: 1 PID: 8877 Comm: syz-executor.1 Not tainted 5.15.0-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
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:rcu_dynticks_curr_cpu_in_eqs kernel/rcu/tree.c:330 [inline]
RIP: 0010:rcu_is_watching+0x3b/0xb0 kernel/rcu/tree.c:1121
Code: 50 aa 03 00 83 f8 07 89 c5 77 77 48 8d 3c ed a0 68 34 8b 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 80 3c 02 00 75 51 <48> 03 1c ed a0 68 34 8b 48 b8 00 00 00 00 00 fc ff df 48 89 da 48
RSP: 0018:ffffc90003c5fa38 EFLAGS: 00000246
RAX: dffffc0000000000 RBX: 000000000003aa50 RCX: ffffffff815c9bb1
RDX: 1ffffffff1668d15 RSI: 0000000000000002 RDI: ffffffff8b3468a8
RBP: 0000000000000001 R08: 0000000000000000 R09: ffffffff8d6f53d7
R10: fffffbfff1adea7a R11: 0000000000000000 R12: 0000000000000001
R13: 0000000020828454 R14: ffff888077331a78 R15: ffff888074752000
 rcu_read_lock_held_common kernel/rcu/update.c:108 [inline]
 rcu_read_lock_sched_held+0x1c/0x70 kernel/rcu/update.c:123
 trace_lock_release include/trace/events/lock.h:58 [inline]
 lock_release+0x522/0x720 kernel/locking/lockdep.c:5636
 __might_fault mm/memory.c:5273 [inline]
 __might_fault+0x142/0x170 mm/memory.c:5258
 _copy_from_user+0x27/0x180 lib/usercopy.c:13
 copy_from_user include/linux/uaccess.h:192 [inline]
 generic_map_update_batch+0x338/0x5b0 kernel/bpf/syscall.c:1391
 bpf_map_do_batch+0x3d5/0x510 kernel/bpf/syscall.c:4207
 __sys_bpf+0x2751/0x5f00 kernel/bpf/syscall.c:4682
 __do_sys_bpf kernel/bpf/syscall.c:4722 [inline]
 __se_sys_bpf kernel/bpf/syscall.c:4720 [inline]
 __x64_sys_bpf+0x75/0xb0 kernel/bpf/syscall.c:4720
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x44/0xae
RIP: 0033:0x7fe68f98bae9
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:00007fe68cf01188 EFLAGS: 00000246 ORIG_RAX: 0000000000000141
RAX: ffffffffffffffda RBX: 00007fe68fa9ef60 RCX: 00007fe68f98bae9
RDX: 000000000000002b RSI: 0000000020000200 RDI: 000000000000001a
RBP: 00007fe68f9e5f25 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffcda083a8f R14: 00007fe68cf01300 R15: 0000000000022000
 </TASK>
----------------
Code disassembly (best guess):
   0:	50                   	push   %rax
   1:	aa                   	stos   %al,%es:(%rdi)
   2:	03 00                	add    (%rax),%eax
   4:	83 f8 07             	cmp    $0x7,%eax
   7:	89 c5                	mov    %eax,%ebp
   9:	77 77                	ja     0x82
   b:	48 8d 3c ed a0 68 34 	lea    -0x74cb9760(,%rbp,8),%rdi
  12:	8b
  13:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  1a:	fc ff df
  1d:	48 89 fa             	mov    %rdi,%rdx
  20:	48 c1 ea 03          	shr    $0x3,%rdx
  24:	80 3c 02 00          	cmpb   $0x0,(%rdx,%rax,1)
  28:	75 51                	jne    0x7b
* 2a:	48 03 1c ed a0 68 34 	add    -0x74cb9760(,%rbp,8),%rbx <-- trapping instruction
  31:	8b
  32:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  39:	fc ff df
  3c:	48 89 da             	mov    %rbx,%rdx
  3f:	48                   	rex.W