INFO: rcu_preempt self-detected stall on CPU
	0-...: (1 GPs behind) idle=c0b/140000000000001/0 softirq=13640/13642 fqs=12493 
	 (t=12500 jiffies g=3550 c=3549 q=1915)
Task dump for CPU 0:
syz-executor3   R  running task    27320 14338   4118 0x0000000c
 0000000000001016 11bbfcb6d61ed1fe ffff8801db207c10 ffffffff811cb728
 0000000000000001 0000000000000000 ffff8801db21f4c0 0000000000000000
 ffffffff842bee80 ffffffff842bef04 dffffc0000000000 ffff8801db207c30
Call Trace:
 <IRQ>  [<ffffffff811cb728>] sched_show_task+0x208/0x3b0 kernel/sched/core.c:5080
 [<ffffffff811d3361>] dump_cpu_task+0x71/0x90 kernel/sched/core.c:9024
 [<ffffffff812890eb>] rcu_dump_cpu_stacks+0x1bb/0x2f0 kernel/rcu/tree.c:1233
 [<ffffffff812962c9>] print_cpu_stall kernel/rcu/tree.c:1340 [inline]
 [<ffffffff812962c9>] check_cpu_stall kernel/rcu/tree.c:1404 [inline]
 [<ffffffff812962c9>] __rcu_pending kernel/rcu/tree.c:3892 [inline]
 [<ffffffff812962c9>] rcu_pending kernel/rcu/tree.c:3956 [inline]
 [<ffffffff812962c9>] rcu_check_callbacks+0x909/0x1fe0 kernel/rcu/tree.c:2796
 [<ffffffff812aa18a>] update_process_times+0x3a/0x70 kernel/time/timer.c:1420
 [<ffffffff812d47b5>] tick_sched_handle.isra.16+0x55/0xf0 kernel/time/tick-sched.c:151
 [<ffffffff812d60d2>] tick_sched_timer+0x72/0x120 kernel/time/tick-sched.c:1097
 [<ffffffff812ac986>] __run_hrtimer kernel/time/hrtimer.c:1253 [inline]
 [<ffffffff812ac986>] __hrtimer_run_queues+0x306/0xfe0 kernel/time/hrtimer.c:1317
 [<ffffffff812aee56>] hrtimer_interrupt+0x1a6/0x440 kernel/time/hrtimer.c:1351
 [<ffffffff810b0c7a>] local_apic_timer_interrupt+0x6a/0xb0 arch/x86/kernel/apic/apic.c:901
 [<ffffffff837748f6>] smp_apic_timer_interrupt+0x76/0xa0 arch/x86/kernel/apic/apic.c:925
 [<ffffffff83773850>] apic_timer_interrupt+0xa0/0xb0 arch/x86/entry/entry_64.S:737
 <EOI>  [<ffffffff833d3998>] ? _decode_session6+0x8a8/0x13d0 net/ipv6/xfrm6_policy.c:150
 [<ffffffff832a31d3>] __xfrm_decode_session+0x63/0x100 net/xfrm/xfrm_policy.c:2397
 [<ffffffff832ab7a5>] __xfrm_policy_check+0x135/0x1a40 net/xfrm/xfrm_policy.c:2434
 [<ffffffff833715ad>] __xfrm_policy_check2 include/net/xfrm.h:1067 [inline]
 [<ffffffff833715ad>] xfrm_policy_check include/net/xfrm.h:1076 [inline]
 [<ffffffff833715ad>] xfrm6_policy_check include/net/xfrm.h:1086 [inline]
 [<ffffffff833715ad>] udpv6_queue_rcv_skb+0x65d/0x1510 net/ipv6/udp.c:634
 [<ffffffff82df7456>] sk_backlog_rcv include/net/sock.h:871 [inline]
 [<ffffffff82df7456>] __release_sock net/core/sock.c:2023 [inline]
 [<ffffffff82df7456>] release_sock+0x176/0x510 net/core/sock.c:2473
 [<ffffffff831a0d84>] udp_sendmsg+0x15c4/0x1c30 net/ipv4/udp.c:1105
 [<ffffffff8336f4b4>] udpv6_sendmsg+0x1434/0x2500 net/ipv6/udp.c:1178
 [<ffffffff831d51fc>] inet_sendmsg+0x2bc/0x4c0 net/ipv4/af_inet.c:755
 [<ffffffff82dea20a>] sock_sendmsg_nosec net/socket.c:625 [inline]
 [<ffffffff82dea20a>] sock_sendmsg+0xca/0x110 net/socket.c:635
 [<ffffffff82deb158>] SYSC_sendto+0x2c8/0x340 net/socket.c:1665
 [<ffffffff82ded650>] SyS_sendto+0x40/0x50 net/socket.c:1633
 [<ffffffff83771c9f>] entry_SYSCALL_64_fastpath+0x1c/0x98