rcu: INFO: rcu_preempt self-detected stall on CPU
rcu: 	1-...!: (1 GPs behind) idle=eca/1/0x4000000000000002 softirq=15014/15016 fqs=1 
	(t=10500 jiffies g=9029 q=204)
rcu: rcu_preempt kthread starved for 10472 jiffies! g9029 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x402 ->cpu=0
rcu: 	Unless rcu_preempt kthread gets sufficient CPU time, OOM is now expected behavior.
rcu: RCU grace-period kthread stack dump:
rcu_preempt     I29160    10      2 0x80004000
Call Trace:
 context_switch kernel/sched/core.c:3430 [inline]
 __schedule+0x86a/0x1990 kernel/sched/core.c:4156
 schedule+0xc4/0x2b0 kernel/sched/core.c:4231
 schedule_timeout+0x2c4/0x6d0 kernel/time/timer.c:1897
 rcu_gp_fqs_loop kernel/rcu/tree.c:1856 [inline]
 rcu_gp_kthread+0xc26/0x1970 kernel/rcu/tree.c:2026
 kthread+0x340/0x410 kernel/kthread.c:268
 ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:351
NMI backtrace for cpu 1
CPU: 1 PID: 10158 Comm: syz-executor.5 Not tainted 5.7.0-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:77 [inline]
 dump_stack+0x128/0x182 lib/dump_stack.c:118
 nmi_cpu_backtrace.cold.7+0x4b/0x83 lib/nmi_backtrace.c:101
 nmi_trigger_cpumask_backtrace+0x183/0x1ac lib/nmi_backtrace.c:62
 trigger_single_cpu_backtrace include/linux/nmi.h:164 [inline]
 rcu_dump_cpu_stacks+0x19e/0x1ea kernel/rcu/tree_stall.h:320
 print_cpu_stall kernel/rcu/tree_stall.h:553 [inline]
 check_cpu_stall kernel/rcu/tree_stall.h:627 [inline]
 rcu_pending kernel/rcu/tree.c:3471 [inline]
 rcu_sched_clock_irq.cold.90+0x51f/0xd59 kernel/rcu/tree.c:2486
 update_process_times+0x1f/0x50 kernel/time/timer.c:1726
 tick_sched_handle+0x6f/0x130 kernel/time/tick-sched.c:176
 tick_sched_timer+0x3e/0xf0 kernel/time/tick-sched.c:1320
 __run_hrtimer kernel/time/hrtimer.c:1520 [inline]
 __hrtimer_run_queues+0x4b1/0xb60 kernel/time/hrtimer.c:1584
 hrtimer_interrupt+0x2e5/0x770 kernel/time/hrtimer.c:1646
 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1080 [inline]
 smp_apic_timer_interrupt+0x15e/0x5f0 arch/x86/kernel/apic/apic.c:1105
 apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:829
 </IRQ>
RIP: 0010:arch_local_irq_restore arch/x86/include/asm/paravirt.h:759 [inline]
RIP: 0010:lock_is_held_type+0x272/0x350 kernel/locking/lockdep.c:4998
Code: 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 80 3c 02 00 0f 85 e1 00 00 00 48 83 3d 77 3b a1 01 00 74 2f 48 8b 7c 24 10 57 9d <0f> 1f 44 00 00 48 83 c4 18 89 e8 5b 5d 41 5c 41 5d 41 5e 41 5f c3
RSP: 0018:ffffc90004546c58 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13
RAX: dffffc0000000000 RBX: ffff8880957aa000 RCX: 1ffffffff1157f25
RDX: 1ffffffff11a8ac0 RSI: ffffffff88db6a80 RDI: 0000000000000286
RBP: 0000000000000001 R08: ffffed1015d27184 R09: ffffed1015d27184
R10: ffff8880ae938c1b R11: ffffed1015d27183 R12: ffffed1012af5519
R13: ffffffff88db6a80 R14: ffff8880957aa8d0 R15: 0000000000000003
 lock_is_held include/linux/lockdep.h:425 [inline]
 rcu_read_lock_held+0x9c/0xb0 kernel/rcu/update.c:320
 net_generic include/net/netns/generic.h:45 [inline]
 tipc_sk_lookup+0x5aa/0x8c0 net/tipc/socket.c:2966
 tipc_sk_rcv+0x268/0x1780 net/tipc/socket.c:2460
 tipc_node_xmit+0x22c/0xa50 net/tipc/node.c:1652
 tipc_node_xmit_skb+0xb3/0x130 net/tipc/node.c:1712
 tipc_sk_rcv+0x1102/0x1780 net/tipc/socket.c:2490
 tipc_node_xmit+0x22c/0xa50 net/tipc/node.c:1652
 tipc_sk_push_backlog+0x565/0x6f0 net/tipc/socket.c:1303
 tipc_sk_filter_connect net/tipc/socket.c:2225 [inline]
 tipc_sk_filter_rcv+0xe85/0x2bc0 net/tipc/socket.c:2334
 tipc_sk_enqueue net/tipc/socket.c:2414 [inline]
 tipc_sk_rcv+0xabe/0x1780 net/tipc/socket.c:2465
 tipc_node_xmit+0x22c/0xa50 net/tipc/node.c:1652
 tipc_node_xmit_skb net/tipc/node.c:1712 [inline]
 tipc_node_distr_xmit+0x135/0x420 net/tipc/node.c:1727
 tipc_sk_backlog_rcv+0x149/0x1c0 net/tipc/socket.c:2382
 sk_backlog_rcv include/net/sock.h:996 [inline]
 __release_sock+0x116/0x350 net/core/sock.c:2548
 release_sock+0x4a/0x170 net/core/sock.c:3064
 tipc_release+0x7bc/0x11b0 net/tipc/socket.c:638
 __sock_release+0xbb/0x270 net/socket.c:605
 sock_close+0xf/0x20 net/socket.c:1278
 __fput+0x2a4/0x7a0 fs/file_table.c:281
 task_work_run+0xc2/0x160 kernel/task_work.c:123
 tracehook_notify_resume include/linux/tracehook.h:188 [inline]
 exit_to_usermode_loop+0x23d/0x2d0 arch/x86/entry/common.c:165
 prepare_exit_to_usermode arch/x86/entry/common.c:196 [inline]
 syscall_return_slowpath arch/x86/entry/common.c:279 [inline]
 do_syscall_64+0x52a/0x620 arch/x86/entry/common.c:305
 entry_SYSCALL_64_after_hwframe+0x49/0xb3
RIP: 0033:0x45cba9
Code: 8d b6 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 5b b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00
RSP: 002b:00007f177af7fc78 EFLAGS: 00000246 ORIG_RAX: 0000000000000021
RAX: 0000000000000004 RBX: 00000000004dc020 RCX: 000000000045cba9
RDX: 0000000000000000 RSI: 0000000000000004 RDI: 0000000000000005
RBP: 000000000078bfa0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000007
R13: 00000000000000a4 R14: 00000000004c3748 R15: 00007f177af806d4