rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: 	1-....: (1 ticks this GP) idle=f6d4/1/0x4000000000000000 softirq=310051/310051 fqs=6
rcu: 	         hardirqs   softirqs   csw/system
rcu: 	 number:        0          0            0
rcu: 	cputime:        0          0            0   ==> 11400(ms)
rcu: 	(detected by 0, t=10503 jiffies, g=434953, q=764 ncpus=2)
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 UID: 0 PID: 21495 Comm: kworker/1:8 Not tainted 6.10.0-syzkaller-12381-gc33ffdb70cc6 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/27/2024
Workqueue: wg-crypt-wg2 wg_packet_tx_worker
RIP: 0010:__lock_acquire+0xc8/0x2040 kernel/locking/lockdep.c:5014
Code: d7 eb 92 45 31 f6 48 39 d0 45 0f 44 ee 85 c9 44 0f 44 e9 83 fd 01 77 2e 89 e8 49 8d 5c c7 08 48 89 d8 48 c1 e8 03 80 3c 30 00 <74> 12 48 89 df e8 de 08 8b 00 48 be 00 00 00 00 00 fc ff df 48 8b
RSP: 0018:ffffc90000a17bd0 EFLAGS: 00000046
RAX: 1ffff110172a5914 RBX: ffff8880b952c8a0 RCX: 0000000000000001
RDX: ffffffff92ebd700 RSI: dffffc0000000000 RDI: ffff8880b952c898
RBP: 0000000000000000 R08: 0000000000000001 R09: 0000000000000001
R10: dffffc0000000000 R11: fffffbfff1f5ed6e R12: ffff88801ababc00
R13: 0000000000000001 R14: 0000000000000000 R15: ffff8880b952c898
FS:  0000000000000000(0000) GS:ffff8880b9500000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000563040b150c8 CR3: 000000004c014000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 000000000000000e DR6: 00000000ffff0ff0 DR7: 0000000000000400
Call Trace:
 <NMI>
 </NMI>
 <IRQ>
 lock_acquire+0x1ed/0x550 kernel/locking/lockdep.c:5759
 __raw_spin_lock_irq include/linux/spinlock_api_smp.h:119 [inline]
 _raw_spin_lock_irq+0xd3/0x120 kernel/locking/spinlock.c:170
 __run_hrtimer kernel/time/hrtimer.c:1693 [inline]
 __hrtimer_run_queues+0x670/0xd50 kernel/time/hrtimer.c:1753
 hrtimer_interrupt+0x396/0x990 kernel/time/hrtimer.c:1815
 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1032 [inline]
 __sysvec_apic_timer_interrupt+0x110/0x3f0 arch/x86/kernel/apic/apic.c:1049
 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1043 [inline]
 sysvec_apic_timer_interrupt+0x52/0xc0 arch/x86/kernel/apic/apic.c:1043
 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702
RIP: 0010:queue_work_on+0x269/0x380 kernel/workqueue.c:2397
Code: 75 19 e8 da ad 36 00 eb 18 e8 d3 ad 36 00 e8 ee ae 33 0a 48 83 7c 24 10 00 74 e7 e8 c1 ad 36 00 fb 48 c7 44 24 20 0e 36 e0 45 <4b> c7 04 37 00 00 00 00 43 c7 44 37 09 00 00 00 00 66 43 c7 44 37
RSP: 0018:ffffc90000a18220 EFLAGS: 00000246
RAX: ffffffff815cd5bf RBX: 0000000000000000 RCX: ffff88801ababc00
RDX: 0000000080000301 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffffc90000a18310 R08: ffffffff815cd58f R09: 1ffffffff25ffb1e
R10: dffffc0000000000 R11: fffffbfff25ffb1f R12: 0000000000800001
R13: 0000000000000046 R14: 1ffff92000143048 R15: dffffc0000000000
 wg_queue_enqueue_per_device_and_peer drivers/net/wireguard/queueing.h:176 [inline]
 wg_packet_consume_data drivers/net/wireguard/receive.c:526 [inline]
 wg_packet_receive+0x1909/0x2570 drivers/net/wireguard/receive.c:576
 wg_receive+0x75/0xa0 drivers/net/wireguard/socket.c:326
 udp_queue_rcv_one_skb+0x1616/0x1820 net/ipv4/udp.c:2132
 udp_unicast_rcv_skb+0x253/0x3d0 net/ipv4/udp.c:2370
 __udp4_lib_rcv+0x135d/0x2710 net/ipv4/udp.c:2446
 ip_protocol_deliver_rcu+0x28d/0x440 net/ipv4/ip_input.c:205
 ip_local_deliver_finish+0x341/0x5f0 net/ipv4/ip_input.c:233
 NF_HOOK+0x3a4/0x450 include/linux/netfilter.h:314
 NF_HOOK+0x3a4/0x450 include/linux/netfilter.h:314
 __netif_receive_skb_one_core net/core/dev.c:5660 [inline]
 __netif_receive_skb+0x2bf/0x650 net/core/dev.c:5774
 process_backlog+0x662/0x15b0 net/core/dev.c:6107
 __napi_poll+0xcb/0x490 net/core/dev.c:6771
 napi_poll net/core/dev.c:6840 [inline]
 net_rx_action+0x89b/0x1240 net/core/dev.c:6962
 handle_softirqs+0x2c4/0x970 kernel/softirq.c:554
 do_softirq+0x11b/0x1e0 kernel/softirq.c:455
 </IRQ>
 <TASK>
 __local_bh_enable_ip+0x1bb/0x200 kernel/softirq.c:382
 wg_socket_send_skb_to_peer+0x176/0x1d0 drivers/net/wireguard/socket.c:184
 wg_packet_create_data_done drivers/net/wireguard/send.c:251 [inline]
 wg_packet_tx_worker+0x1bf/0x810 drivers/net/wireguard/send.c:276
 process_one_work kernel/workqueue.c:3231 [inline]
 process_scheduled_works+0xa2c/0x1830 kernel/workqueue.c:3312
 worker_thread+0x86d/0xd40 kernel/workqueue.c:3390
 kthread+0x2f0/0x390 kernel/kthread.c:389
 ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:147
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
 </TASK>
rcu: rcu_preempt kthread starved for 335 jiffies! g434953 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:25232 pid:17    tgid:17    ppid:2      flags:0x00004000
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5188 [inline]
 __schedule+0x1800/0x4a60 kernel/sched/core.c:6529
 __schedule_loop kernel/sched/core.c:6606 [inline]
 schedule+0x14b/0x320 kernel/sched/core.c:6621
 schedule_timeout+0x1be/0x310 kernel/time/timer.c:2581
 rcu_gp_fqs_loop+0x2df/0x1330 kernel/rcu/tree.c:2034
 rcu_gp_kthread+0xa7/0x3b0 kernel/rcu/tree.c:2236
 kthread+0x2f0/0x390 kernel/kthread.c:389
 ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:147
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
 </TASK>
rcu: Stack dump where RCU GP kthread last ran:
CPU: 0 UID: 0 PID: 7050 Comm: syz.1.587 Not tainted 6.10.0-syzkaller-12381-gc33ffdb70cc6 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/27/2024
RIP: 0010:io_cqring_wait io_uring/io_uring.c:2449 [inline]
RIP: 0010:__do_sys_io_uring_enter io_uring/io_uring.c:3250 [inline]
RIP: 0010:__se_sys_io_uring_enter+0x15a3/0x2670 io_uring/io_uring.c:3142
Code: 07 48 8d 1d 00 00 00 00 48 8b 4c 24 10 48 89 c8 48 c1 e8 03 42 80 3c 20 00 74 0f 48 8b 7c 24 10 e8 32 84 54 fd 48 8b 4c 24 10 <48> 89 19 48 8b 9c 24 c0 00 00 00 48 89 df be 04 00 00 00 e8 c5 85
RSP: 0018:ffffc9000f36fc40 EFLAGS: 00000246
RAX: 1ffff1100dbaba6c RBX: ffffffff84a63881 RCX: ffff88806dd5d360
RDX: 0000000000000001 RSI: 0000000000000004 RDI: ffff88802b2542d0
RBP: ffffc9000f36fed0 R08: ffff88802b2542d3 R09: 1ffff1100564a85a
R10: dffffc0000000000 R11: ffffed100564a85b R12: dffffc0000000000
R13: ffff88806dd5bc00 R14: ffff88802b254000 R15: ffff88802b2542d0
FS:  0000000000000000(0000) GS:ffff8880b9400000(0063) knlGS:00000000f56e6b40
CS:  0010 DS: 002b ES: 002b CR0: 0000000080050033
CR2: 0000563040acb010 CR3: 000000005f16a000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 000000000000000e DR6: 00000000ffff0ff0 DR7: 0000000000000400
Call Trace:
 <IRQ>
 </IRQ>
 <TASK>
 do_syscall_32_irqs_on arch/x86/entry/common.c:165 [inline]
 __do_fast_syscall_32+0xb4/0x110 arch/x86/entry/common.c:386
 do_fast_syscall_32+0x34/0x80 arch/x86/entry/common.c:411
 entry_SYSENTER_compat_after_hwframe+0x84/0x8e
RIP: 0023:0xf73cd579
Code: b8 01 10 06 03 74 b4 01 10 07 03 74 b0 01 10 08 03 74 d8 01 00 00 00 00 00 00 00 00 00 00 00 00 00 51 52 55 89 e5 0f 34 cd 80 <5d> 5a 59 c3 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90
RSP: 002b:00000000f56e657c EFLAGS: 00000206 ORIG_RAX: 00000000000001aa
RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000000001
RDX: 0000000000000012 RSI: 0000000000000001 RDI: 0000000000000000
RBP: 0000000001000000 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000206 R12: 0000000000000000
R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000
 </TASK>