rcu: INFO: rcu_preempt self-detected stall on CPU
rcu: 	1-...!: (1 GPs behind) idle=6f4c/0/0x3 softirq=80726/80731 fqs=10
rcu: 	(t=10500 jiffies g=66241 q=593 ncpus=2)
rcu: rcu_preempt kthread starved for 10479 jiffies! g66241 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x0 ->cpu=0
rcu: 	Unless rcu_preempt kthread gets sufficient CPU time, OOM is now expected behavior.
rcu: RCU grace-period kthread stack dump:
task:rcu_preempt     state:R  running task     stack:26792 pid:16    tgid:16    ppid:2      task_flags:0x208040 flags:0x00004000
Call Trace:
 <TASK>
 __schedule+0x1798/0x4cc0
 schedule+0x165/0x360
 schedule_timeout+0x12b/0x270
 rcu_gp_fqs_loop+0x301/0x1540
 rcu_gp_kthread+0x99/0x390
 kthread+0x711/0x8a0
 ret_from_fork+0x3fc/0x770
 ret_from_fork_asm+0x1a/0x30
 </TASK>
rcu: Stack dump where RCU GP kthread last ran:
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 UID: 0 PID: 6433 Comm: kworker/u9:9 Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
Workqueue: wg-kex-wg0 wg_packet_handshake_send_worker
RIP: 0010:kasan_check_range+0xb/0x2c0
Code: ff 90 0f 0b cc cc cc cc cc cc cc cc cc cc cc 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 66 0f 1f 00 55 41 57 41 56 41 55 <41> 54 53 b0 01 48 85 f6 0f 84 ba 01 00 00 4c 8d 04 37 49 39 f8 0f
RSP: 0018:ffffc900000070f8 EFLAGS: 00000246
RAX: 0000000000000001 RBX: ffff88802d9608f0 RCX: ffffffff8b7d1e5c
RDX: 0000000000000000 RSI: 0000000000000004 RDI: ffff88802d9608f0
RBP: ffffc90000007218 R08: ffff88802d9608f3 R09: 1ffff11005b2c11e
R10: dffffc0000000000 R11: ffffed1005b2c11f R12: 1ffff92000000e2c
R13: 0000000000000001 R14: ffffc90000007180 R15: 1ffff11005b2c11e
FS:  0000000000000000(0000) GS:ffff8880b8614000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000110c3e2b39 CR3: 0000000101294000 CR4: 00000000000006f0
Call Trace:
 <IRQ>
 native_queued_spin_lock_slowpath+0xbc/0x8e0
 queued_spin_lock_slowpath+0x43/0x50
 do_raw_spin_lock+0x21f/0x290
 __dev_queue_xmit+0xd70/0x3b50
 ip6_finish_output2+0xf70/0x1480
 ip6_output+0x340/0x550
 ip6_send_skb+0x1d5/0x390
 icmp6_send+0x12c6/0x1940
 ip6_link_failure+0x3b/0x4c0
 ndisc_error_report+0x118/0x160
 neigh_invalidate+0x235/0x460
 neigh_timer_handler+0x949/0x1150
 call_timer_fn+0x17e/0x5f0
 __run_timer_base+0x61a/0x860
 run_timer_softirq+0xb7/0x180
 handle_softirqs+0x286/0x870
 do_softirq+0xec/0x180
 </IRQ>
 <TASK>
 __local_bh_enable_ip+0x17d/0x1c0
 wg_socket_send_skb_to_peer+0x16b/0x1d0
 wg_packet_handshake_send_worker+0x1db/0x320
 process_scheduled_works+0xae1/0x17b0
 worker_thread+0x8a0/0xda0
 kthread+0x711/0x8a0
 ret_from_fork+0x3fc/0x770
 ret_from_fork_asm+0x1a/0x30
 </TASK>
CPU: 1 UID: 0 PID: 0 Comm: swapper/1 Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
RIP: 0010:__list_add_valid_or_report+0x60/0x130
Code: 08 4c 89 e5 48 c1 ed 03 42 80 7c 2d 00 00 74 08 4c 89 e7 e8 02 d6 52 fd 4d 39 34 24 75 71 4d 89 f4 49 c1 ec 03 43 80 3c 2c 00 <74> 08 4c 89 f7 e8 e6 d5 52 fd 49 39 1e 0f 85 83 00 00 00 4d 39 f7
RSP: 0018:ffffc900001e0090 EFLAGS: 00000246
RAX: 1ffff11005b2c15d RBX: ffff88802d960ae0 RCX: dffffc0000000000
RDX: ffff88802d960ae0 RSI: ffff88802d960ae0 RDI: ffff888032ac0440
RBP: 1ffff11005b2c15d R08: ffff888100028000 R09: 0000000000000002
R10: 0000000000000001 R11: ffffffff8999bd10 R12: 1ffff11005b2c15c
R13: dffffc0000000000 R14: ffff88802d960ae0 R15: ffff888032ac0440
FS:  0000000000000000(0000) GS:ffff8881a3c14000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000110c3b1ec1 CR3: 00000001285a4000 CR4: 00000000000006f0
Call Trace:
 <IRQ>
 fq_pie_qdisc_dequeue+0x3ca/0x9b0
 __qdisc_run+0x23c/0x15f0
 __dev_queue_xmit+0x1056/0x3b50
 ip6_finish_output2+0xf70/0x1480
 ip6_output+0x340/0x550
 ip6_send_skb+0x1d5/0x390
 icmp6_send+0x12c6/0x1940
 ip6_link_failure+0x3b/0x4c0
 ndisc_error_report+0x118/0x160
 neigh_invalidate+0x235/0x460
 neigh_timer_handler+0x949/0x1150
 call_timer_fn+0x17e/0x5f0
 __run_timer_base+0x61a/0x860
 run_timer_softirq+0xb7/0x180
 handle_softirqs+0x286/0x870
 __irq_exit_rcu+0xca/0x1f0
 irq_exit_rcu+0x9/0x30
 sysvec_apic_timer_interrupt+0xa6/0xc0
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x1a/0x20
RIP: 0010:pv_native_safe_halt+0x13/0x20
Code: 13 e8 02 00 cc cc cc 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa eb 07 0f 00 2d 73 b7 0d 00 f3 0f 1e fa fb f4 <c3> cc cc cc cc cc cc cc cc cc cc cc cc 90 90 90 90 90 90 90 90 90
RSP: 0018:ffffc90000177de0 EFLAGS: 00000282
RAX: 87ad08525b9bbe00 RBX: ffffffff819683f8 RCX: 87ad08525b9bbe00
RDX: 0000000000000001 RSI: ffffffff8d9b9d08 RDI: ffffffff8be33880
RBP: ffffc90000177f20 R08: ffff888136632f9b R09: 1ffff11026cc65f3
R10: dffffc0000000000 R11: ffffed1026cc65f4 R12: ffffffff8fa39230
R13: 0000000000000001 R14: 0000000000000001 R15: 1ffff11020005000
 default_idle+0x13/0x20
 default_idle_call+0x74/0xb0
 do_idle+0x1e8/0x510
 cpu_startup_entry+0x44/0x60
 start_secondary+0x101/0x110
 common_startup_64+0x13e/0x147
 </TASK>
IPVS: fo: UDP 224.0.0.2:0 - no destination available
