rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: 	(detected by 0, t=10502 jiffies, g=33765, q=1717 ncpus=2)
rcu: All QSes seen, last rcu_preempt kthread activity 5580 (4294968876-4294963296), jiffies_till_next_fqs=1, root ->qsmask 0x0
rcu: rcu_preempt kthread starved for 5581 jiffies! g33765 f0x2 RCU_GP_WAIT_FQS(5) ->state=0x0 ->cpu=1
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:27536 pid:16    tgid:16    ppid:2      task_flags:0x208040 flags:0x00080000
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5388 [inline]
 __schedule+0x1821/0x5740 kernel/sched/core.c:7189
 __schedule_loop kernel/sched/core.c:7268 [inline]
 schedule+0x164/0x360 kernel/sched/core.c:7283
 schedule_timeout+0x158/0x2c0 kernel/time/sleep_timeout.c:99
 rcu_gp_fqs_loop+0x312/0x11d0 kernel/rcu/tree.c:2095
 rcu_gp_kthread+0x9e/0x2b0 kernel/rcu/tree.c:2297
 kthread+0x389/0x470 kernel/kthread.c:436
 ret_from_fork+0x514/0xb70 arch/x86/kernel/process.c:158
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245
 </TASK>
rcu: Stack dump where RCU GP kthread last ran:
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 UID: 0 PID: 8174 Comm: kworker/R-bond3 Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026
Workqueue: bond3 bond_alb_monitor
RIP: 0010:hlock_class kernel/locking/lockdep.c:229 [inline]
RIP: 0010:mark_lock+0x2f/0x190 kernel/locking/lockdep.c:4731
Code: 41 55 41 54 53 8b 46 20 89 c1 81 e1 00 00 03 00 83 f9 01 bb 09 00 00 00 83 db 00 83 fa 08 0f 45 da bd 01 00 00 00 89 d9 d3 e5 <25> ff 1f 00 00 48 0f a3 05 d4 e0 9d 12 73 10 48 69 c0 c8 00 00 00
RSP: 0018:ffffc90000a07af8 EFLAGS: 00000002
RAX: 00000000000e6056 RBX: 0000000000000005 RCX: 0000000000000005
RDX: 0000000000000005 RSI: ffff888078f00c58 RDI: ffff888078f00000
RBP: 0000000000000020 R08: ffffffff81b3470d R09: ffffffff9a47a588
R10: dffffc0000000000 R11: fffff52000140fa0 R12: 0000000000000056
R13: ffff888078f00c58 R14: ffff888078f00000 R15: ffff888078f00b90
FS:  0000000000000000(0000) GS:ffff8881253a0000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b33620000 CR3: 000000003437e000 CR4: 00000000003526f0
Call Trace:
 <IRQ>
 mark_usage kernel/locking/lockdep.c:-1 [inline]
 __lock_acquire+0x689/0x2cf0 kernel/locking/lockdep.c:5191
 lock_acquire+0x106/0x350 kernel/locking/lockdep.c:5868
 seqcount_lockdep_reader_access+0x55/0x100 include/linux/seqlock.h:73
 ktime_get_update_offsets_now+0x5d/0x3e0 kernel/time/timekeeping.c:2725
 hrtimer_update_base kernel/time/hrtimer.c:683 [inline]
 hrtimer_interrupt+0x135/0x950 kernel/time/hrtimer.c:2096
 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1050 [inline]
 __sysvec_apic_timer_interrupt+0x102/0x430 arch/x86/kernel/apic/apic.c:1067
 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1061 [inline]
 sysvec_apic_timer_interrupt+0x52/0xc0 arch/x86/kernel/apic/apic.c:1061
 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:697
RIP: 0010:kasan_check_range+0x0/0x2c0 mm/kasan/generic.c:199
Code: fe 90 0f 0b 48 89 df 48 c7 c6 16 8c 21 8e e8 37 16 f7 fe 90 0f 0b cc cc cc cc 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 <0f> 1f 40 d6 55 41 57 41 56 41 55 41 54 53 b0 01 48 85 f6 0f 84 ae
RSP: 0018:ffffc90000a07fc0 EFLAGS: 00000202
RAX: dffffc0000000001 RBX: 0000000000000010 RCX: ffffffff8a509668
RDX: 0000000000000001 RSI: 0000000000000010 RDI: ffff88815a7acaf0
RBP: 0000000000000000 R08: ffff88806c08426f R09: 1ffff1100d81084d
R10: dffffc0000000000 R11: ffffed100d81084e R12: ffffffff8a509668
R13: 0000000000000010 R14: ffff88806c084260 R15: ffff88815a7acaf0
 __asan_memcpy+0x40/0x70 mm/kasan/shadow.c:106
 neigh_hh_output include/net/neighbour.h:-1 [inline]
 neigh_output include/net/neighbour.h:558 [inline]
 ip6_finish_output2+0xb38/0x13e0 net/ipv6/ip6_output.c:136
 NF_HOOK_COND include/linux/netfilter.h:307 [inline]
 ip6_output+0x340/0x550 net/ipv6/ip6_output.c:246
 synproxy_send_tcp_ipv6+0x52f/0x6d0 net/netfilter/nf_synproxy_core.c:861
 synproxy_send_client_synack_ipv6+0x814/0xcb0 net/netfilter/nf_synproxy_core.c:907
 nft_synproxy_eval_v6+0x34a/0x4e0 net/netfilter/nft_synproxy.c:91
 nft_synproxy_do_eval+0x3ce/0x580 net/netfilter/nft_synproxy.c:146
 expr_call_ops_eval net/netfilter/nf_tables_core.c:237 [inline]
 nft_do_chain+0x48d/0x1ae0 net/netfilter/nf_tables_core.c:285
 nft_do_chain_inet+0x360/0x4b0 net/netfilter/nft_chain_filter.c:162
 nf_hook_entry_hookfn include/linux/netfilter.h:158 [inline]
 nf_hook_slow+0xc5/0x220 net/netfilter/core.c:619
 nf_hook include/linux/netfilter.h:273 [inline]
 NF_HOOK+0x21f/0x3c0 include/linux/netfilter.h:316
 ip6_input+0x16a/0x270 net/ipv6/ip6_input.c:545
 NF_HOOK+0x336/0x3c0 include/linux/netfilter.h:318
 __netif_receive_skb_one_core net/core/dev.c:6202 [inline]
 __netif_receive_skb net/core/dev.c:6315 [inline]
 process_backlog+0x7dd/0x1950 net/core/dev.c:6666
 __napi_poll+0xae/0x340 net/core/dev.c:7733
 napi_poll net/core/dev.c:7796 [inline]
 net_rx_action+0x627/0xf70 net/core/dev.c:7953
 handle_softirqs+0x22a/0x840 kernel/softirq.c:622
 __do_softirq kernel/softirq.c:656 [inline]
 invoke_softirq kernel/softirq.c:496 [inline]
 __irq_exit_rcu+0xca/0x220 kernel/softirq.c:735
 irq_exit_rcu+0x9/0x30 kernel/softirq.c:752
 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1061 [inline]
 sysvec_apic_timer_interrupt+0xa6/0xc0 arch/x86/kernel/apic/apic.c:1061
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:697
RIP: 0010:__raw_spin_unlock_irq include/linux/spinlock_api_smp.h:188 [inline]
RIP: 0010:_raw_spin_unlock_irq+0x29/0x50 kernel/locking/spinlock.c:206
Code: 90 f3 0f 1e fa 53 48 89 fb 48 83 c7 18 48 8b 74 24 08 e8 0a b3 f7 f5 48 89 df e8 12 28 f8 f5 e8 5d c2 23 f6 fb bf 01 00 00 00 <e8> 42 a7 e9 f5 65 8b 05 3b de 8d 07 85 c0 74 07 5b c3 cc cc cc cc
RSP: 0018:ffffc9000dd37a90 EFLAGS: 00000202
RAX: 00000000001eb17f RBX: ffff88801ae9b000 RCX: 0000000080000001
RDX: 0000000000000000 RSI: ffffffff8dfa4d62 RDI: 0000000000000001
RBP: ffffc9000dd37cb8 R08: ffffffff903034f7 R09: 1ffffffff206069e
R10: dffffc0000000000 R11: fffffbfff206069f R12: 0000000002000000
R13: ffff8880536612f8 R14: dffffc0000000000 R15: ffff888078dbd218
 process_one_work kernel/workqueue.c:3283 [inline]
 process_scheduled_works+0x953/0x1860 kernel/workqueue.c:3397
 rescuer_thread+0x827/0x1130 kernel/workqueue.c:3621
 kthread+0x389/0x470 kernel/kthread.c:436
 ret_from_fork+0x514/0xb70 arch/x86/kernel/process.c:158
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245
 </TASK>