rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: 	Tasks blocked on level-0 rcu_node (CPUs 0-1): P23340/3:b..l
rcu: 	(detected by 0, t=30002 jiffies, g=417633, q=349 ncpus=1)
task:syz.3.6532      state:R  running task     stack:0     pid:23340 tgid:23339 ppid:21542  task_flags:0x400040 flags:0x00000011
Call trace:
 __switch_to+0x100/0x200 arch/arm64/kernel/process.c:775 (T)
 context_switch kernel/sched/core.c:5533 [inline]
 __schedule+0x400/0xdc8 kernel/sched/core.c:7284
 preempt_schedule_common kernel/sched/core.c:7463 [inline]
 preempt_schedule+0x48/0x60 kernel/sched/core.c:7487
 __local_bh_enable_ip+0x6c/0x9c kernel/softirq.c:480
 local_bh_enable include/linux/bottom_half.h:33 [inline]
 rcu_read_unlock_bh include/linux/rcupdate.h:923 [inline]
 __dev_queue_xmit+0x334/0x1120 net/core/dev.c:4993
 dev_queue_xmit include/linux/netdevice.h:3464 [inline]
 neigh_hh_output include/net/neighbour.h:544 [inline]
 neigh_output include/net/neighbour.h:558 [inline]
 ip_finish_output2+0x504/0x6c0 net/ipv4/ip_output.c:236
 __ip_finish_output net/ipv4/ip_output.c:314 [inline]
 __ip_finish_output+0xa4/0x1a0 net/ipv4/ip_output.c:296
 ip_finish_output+0x34/0x148 net/ipv4/ip_output.c:324
 NF_HOOK_COND include/linux/netfilter.h:314 [inline]
 ip_output+0x70/0x118 net/ipv4/ip_output.c:437
 dst_output include/net/dst.h:471 [inline]
 ip_local_out net/ipv4/ip_output.c:131 [inline]
 __ip_queue_xmit+0x178/0x480 net/ipv4/ip_output.c:533
 ip_queue_xmit+0x14/0x20 net/ipv4/ip_output.c:547
 __tcp_transmit_skb+0x5a8/0x1058 net/ipv4/tcp_output.c:1716
 tcp_transmit_skb net/ipv4/tcp_output.c:1734 [inline]
 tcp_send_syn_data net/ipv4/tcp_output.c:4292 [inline]
 tcp_connect+0x7e8/0xfcc net/ipv4/tcp_output.c:4385
 tcp_v4_connect+0x3b8/0x4c4 net/ipv4/tcp_ipv4.c:345
 mptcp_connect+0x180/0x2dc net/mptcp/protocol.c:4201
 __inet_stream_connect+0x134/0x3c0 net/ipv4/af_inet.c:684
 tcp_sendmsg_fastopen+0xd0/0x1dc net/ipv4/tcp.c:1085
 mptcp_sendmsg_fastopen net/mptcp/protocol.c:1918 [inline]
 mptcp_sendmsg+0x66c/0x870 net/mptcp/protocol.c:2019
 inet_sendmsg+0x44/0x70 net/ipv4/af_inet.c:865
 sock_sendmsg_nosec net/socket.c:800 [inline]
 __sock_sendmsg+0x54/0x60 net/socket.c:815
 ____sys_sendmsg+0x104/0x2a8 net/socket.c:2713
 ___sys_sendmsg+0xb0/0x108 net/socket.c:2767
 __sys_sendmmsg+0x110/0x24c net/socket.c:2856
 __do_sys_sendmmsg net/socket.c:2883 [inline]
 __se_sys_sendmmsg net/socket.c:2880 [inline]
 __arm64_sys_sendmmsg+0x24/0x34 net/socket.c:2880
 __invoke_syscall arch/arm64/kernel/syscall.c:35 [inline]
 invoke_syscall+0x54/0x10c arch/arm64/kernel/syscall.c:49
 el0_svc_common.constprop.0+0x40/0xe0 arch/arm64/kernel/syscall.c:121
 do_el0_svc+0x1c/0x34 arch/arm64/kernel/syscall.c:140
 el0_svc+0x38/0x1fc arch/arm64/kernel/entry-common.c:758
 el0t_64_sync_handler+0xa0/0xe4 arch/arm64/kernel/entry-common.c:777
 el0t_64_sync+0x1a4/0x1a8 arch/arm64/kernel/entry.S:590