rcu: INFO: rcu_preempt self-detected stall on CPU
rcu: 	0-....: (10499 ticks this GP) idle=506/1/0x4000000000000000 softirq=29333/29340 fqs=5102 
	(t=10500 jiffies g=41461 q=345)
NMI backtrace for cpu 0
CPU: 0 PID: 17404 Comm: syz-executor.5 Not tainted 5.10.0-rc6-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:77 [inline]
 dump_stack+0x107/0x163 lib/dump_stack.c:118
 nmi_cpu_backtrace.cold+0x44/0xd7 lib/nmi_backtrace.c:105
 nmi_trigger_cpumask_backtrace+0x1b3/0x230 lib/nmi_backtrace.c:62
 trigger_single_cpu_backtrace include/linux/nmi.h:164 [inline]
 rcu_dump_cpu_stacks+0x1e3/0x21e kernel/rcu/tree_stall.h:331
 print_cpu_stall kernel/rcu/tree_stall.h:563 [inline]
 check_cpu_stall kernel/rcu/tree_stall.h:637 [inline]
 rcu_pending kernel/rcu/tree.c:3694 [inline]
 rcu_sched_clock_irq.cold+0x472/0xee8 kernel/rcu/tree.c:2567
 update_process_times+0x77/0xd0 kernel/time/timer.c:1709
 tick_sched_handle+0x9b/0x180 kernel/time/tick-sched.c:176
 tick_sched_timer+0x1d1/0x2a0 kernel/time/tick-sched.c:1328
 __run_hrtimer kernel/time/hrtimer.c:1519 [inline]
 __hrtimer_run_queues+0x1ce/0xea0 kernel/time/hrtimer.c:1583
 hrtimer_interrupt+0x334/0x940 kernel/time/hrtimer.c:1645
 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1080 [inline]
 __sysvec_apic_timer_interrupt+0x146/0x540 arch/x86/kernel/apic/apic.c:1097
 run_sysvec_on_irqstack_cond arch/x86/include/asm/irq_stack.h:91 [inline]
 sysvec_apic_timer_interrupt+0x48/0x100 arch/x86/kernel/apic/apic.c:1091
 asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:631
RIP: 0010:get_current arch/x86/include/asm/current.h:15 [inline]
RIP: 0010:__sanitizer_cov_trace_pc+0x0/0x60 kernel/kcov.c:196
Code: fc ff ff 48 c7 c7 00 d5 38 8b 48 89 54 24 08 48 89 34 24 e8 92 aa 5e 02 48 8b 54 24 08 48 8b 34 24 e9 a1 fd ff ff 0f 1f 40 00 <65> 48 8b 14 25 00 f0 01 00 65 8b 05 30 eb 91 7e a9 00 01 ff 00 48
RSP: 0018:ffffc90000007e20 EFLAGS: 00000202
RAX: 0000000000000000 RBX: 0000000000000001 RCX: ffffffff816017e0
RDX: 0000000000000001 RSI: ffff888054d29a40 RDI: 0000000000000005
RBP: ffff8880286d5838 R08: 0000000000000000 R09: ffffffff8ceca90f
R10: 0000000000000000 R11: 0000000000000001 R12: ffff8880b9e26900
R13: ffff8880b9e26b80 R14: ffffffff850f2a70 R15: dffffc0000000000
 trace_hrtimer_expire_entry include/trace/events/timer.h:232 [inline]
 __run_hrtimer kernel/time/hrtimer.c:1516 [inline]
 __hrtimer_run_queues+0x9e9/0xea0 kernel/time/hrtimer.c:1583
 hrtimer_run_softirq+0x17b/0x360 kernel/time/hrtimer.c:1600
 __do_softirq+0x2a0/0x9f6 kernel/softirq.c:298
 asm_call_irq_on_stack+0xf/0x20
 </IRQ>
 __run_on_irqstack arch/x86/include/asm/irq_stack.h:26 [inline]
 run_on_irqstack_cond arch/x86/include/asm/irq_stack.h:77 [inline]
 do_softirq_own_stack+0xaa/0xd0 arch/x86/kernel/irq_64.c:77
 invoke_softirq kernel/softirq.c:393 [inline]
 __irq_exit_rcu kernel/softirq.c:423 [inline]
 irq_exit_rcu+0x132/0x200 kernel/softirq.c:435
 sysvec_apic_timer_interrupt+0x4d/0x100 arch/x86/kernel/apic/apic.c:1091
 asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:631
RIP: 0010:page_to_nid include/linux/mm.h:1302 [inline]
RIP: 0010:change_pte_range mm/mprotect.c:112 [inline]
RIP: 0010:change_pmd_range mm/mprotect.c:269 [inline]
RIP: 0010:change_pud_range mm/mprotect.c:297 [inline]
RIP: 0010:change_p4d_range mm/mprotect.c:317 [inline]
RIP: 0010:change_protection_range mm/mprotect.c:342 [inline]
RIP: 0010:change_protection+0x1391/0x2090 mm/mprotect.c:365
Code: 0f 85 3d fb ff ff e8 ae 26 cb ff 4c 89 e0 48 ba 00 00 00 00 00 fc ff df 48 c1 e8 03 80 3c 10 00 0f 85 65 0b 00 00 49 8b 2c 24 <48> c7 c7 ff ff ff ff 48 89 ee e8 f0 1e cb ff 48 83 fd ff 0f 84 74
RSP: 0018:ffffc9000c0ff9f8 EFLAGS: 00000246
RAX: 1ffffd4000287b70 RBX: ffff88802b1adb70 RCX: ffffc9001388b000
RDX: dffffc0000000000 RSI: ffffffff81a4ddd2 RDI: 0000000000000001
RBP: 00fff00000000000 R08: 0000000000000000 R09: ffffea0001438007
R10: 0000000000000000 R11: 0000000000000000 R12: ffffea000143db80
R13: 0000000000000001 R14: ffffea000143db88 R15: 8000000000000805
 change_prot_numa+0x2c/0x80 mm/mempolicy.c:657
 task_numa_work+0x3df/0x870 kernel/sched/fair.c:2811
 task_work_run+0xdd/0x190 kernel/task_work.c:151
 get_signal+0xd8f/0x1f10 kernel/signal.c:2562
 arch_do_signal+0x82/0x2390 arch/x86/kernel/signal.c:811
 exit_to_user_mode_loop kernel/entry/common.c:161 [inline]
 exit_to_user_mode_prepare+0x100/0x1a0 kernel/entry/common.c:191
 syscall_exit_to_user_mode+0x38/0x260 kernel/entry/common.c:266
 entry_SYSCALL_64_after_hwframe+0x44/0xa9
RIP: 0033:0x45deb9
Code: 0d b4 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 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 0f 83 db b3 fb ff c3 66 2e 0f 1f 84 00 00 00 00
RSP: 002b:00007f00e5bbfc78 EFLAGS: 00000246 ORIG_RAX: 000000000000002c
RAX: 0000000000278000 RBX: 000000000002e940 RCX: 000000000045deb9
RDX: ffffffffffffffef RSI: 0000000020d7cfcb RDI: 0000000000000005
RBP: 000000000118bf78 R08: 0000000000000000 R09: 0000000009000000
R10: 0000000000000000 R11: 0000000000000246 R12: 000000000118bf2c
R13: 00007ffc2b7a6fff R14: 00007f00e5bc09c0 R15: 000000000118bf2c