rcu: INFO: rcu_preempt self-detected stall on CPU
rcu: 	0-....: (1 GPs behind) idle=b5b/1/0x4000000000000000 softirq=104320/104321 fqs=5159 
	(t=10502 jiffies g=201477 q=43490)
NMI backtrace for cpu 0
CPU: 0 PID: 22050 Comm: syz-executor.5 Not tainted 5.15.0-rc5-next-20211018-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:604 [inline]
 check_cpu_stall kernel/rcu/tree_stall.h:688 [inline]
 rcu_pending kernel/rcu/tree.c:3889 [inline]
 rcu_sched_clock_irq.cold+0x9d/0x746 kernel/rcu/tree.c:2608
 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:1428
 __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:__nr_to_section include/linux/mmzone.h:1368 [inline]
RIP: 0010:__pfn_to_section include/linux/mmzone.h:1455 [inline]
RIP: 0010:pfn_valid include/linux/mmzone.h:1506 [inline]
RIP: 0010:__virt_addr_valid+0x11c/0x2d0 arch/x86/mm/physaddr.c:65
Code: 81 fd ff ff 07 00 0f 87 5a ff ff ff e8 bd aa 42 00 48 c7 c0 80 e0 4a 90 48 ba 00 00 00 00 00 fc ff df 48 c1 e8 03 80 3c 10 00 <0f> 85 58 01 00 00 4c 8b 25 07 16 16 0f 4d 85 e4 0f 84 23 ff ff ff
RSP: 0018:ffffc90002eefb08 EFLAGS: 00000246
RAX: 1ffffffff2095c10 RBX: 0000000143dfe690 RCX: ffffc90013acc000
RDX: dffffc0000000000 RSI: ffffffff8134ca53 RDI: 0000000000000003
RBP: 0000000000000028 R08: 000000000007ffff R09: 000000000000002e
R10: ffffffff8134ca41 R11: 000000000000003f R12: 0000000000000000
R13: 0000000000000000 R14: 0000000000000000 R15: ffff8880774fa800
 check_heap_object mm/usercopy.c:228 [inline]
 __check_object_size mm/usercopy.c:286 [inline]
 __check_object_size+0xbe/0x3f0 mm/usercopy.c:256
 check_object_size include/linux/thread_info.h:185 [inline]
 check_copy_size include/linux/thread_info.h:218 [inline]
 copy_from_user include/linux/uaccess.h:191 [inline]
 generic_map_update_batch+0x314/0x560 kernel/bpf/syscall.c:1372
 bpf_map_do_batch+0x3d5/0x510 kernel/bpf/syscall.c:4176
 __sys_bpf+0x2727/0x5de0 kernel/bpf/syscall.c:4651
 __do_sys_bpf kernel/bpf/syscall.c:4691 [inline]
 __se_sys_bpf kernel/bpf/syscall.c:4689 [inline]
 __x64_sys_bpf+0x75/0xb0 kernel/bpf/syscall.c:4689
 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: 0033:0x7fca1a418a39
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:00007fca1796d188 EFLAGS: 00000246 ORIG_RAX: 0000000000000141
RAX: ffffffffffffffda RBX: 00007fca1a51c020 RCX: 00007fca1a418a39
RDX: 0000000000000038 RSI: 0000000020000080 RDI: 000000000000001a
RBP: 00007fca1a472c5f R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffecf55b9ef R14: 00007fca1796d300 R15: 0000000000022000
 </TASK>
----------------
Code disassembly (best guess):
   0:	81 fd ff ff 07 00    	cmp    $0x7ffff,%ebp
   6:	0f 87 5a ff ff ff    	ja     0xffffff66
   c:	e8 bd aa 42 00       	callq  0x42aace
  11:	48 c7 c0 80 e0 4a 90 	mov    $0xffffffff904ae080,%rax
  18:	48 ba 00 00 00 00 00 	movabs $0xdffffc0000000000,%rdx
  1f:	fc ff df
  22:	48 c1 e8 03          	shr    $0x3,%rax
  26:	80 3c 10 00          	cmpb   $0x0,(%rax,%rdx,1)
* 2a:	0f 85 58 01 00 00    	jne    0x188 <-- trapping instruction
  30:	4c 8b 25 07 16 16 0f 	mov    0xf161607(%rip),%r12        # 0xf16163e
  37:	4d 85 e4             	test   %r12,%r12
  3a:	0f 84 23 ff ff ff    	je     0xffffff63