BUG: MAX_LOCKDEP_CHAIN_HLOCKS too low! turning off the locking correctness validator. CPU: 0 UID: 0 PID: 6634 Comm: kworker/0:4 Not tainted syzkaller #0 PREEMPT Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 Workqueue: wg-crypt-wg1 wg_packet_tx_worker Call trace: show_stack+0x2c/0x3c arch/arm64/kernel/stacktrace.c:499 (C) __dump_stack+0x30/0x40 lib/dump_stack.c:94 dump_stack_lvl+0xd8/0x12c lib/dump_stack.c:120 dump_stack+0x1c/0x28 lib/dump_stack.c:129 add_chain_cache kernel/locking/lockdep.c:-1 [inline] lookup_chain_cache_add kernel/locking/lockdep.c:3855 [inline] validate_chain kernel/locking/lockdep.c:3876 [inline] __lock_acquire+0xf9c/0x30a4 kernel/locking/lockdep.c:5237 lock_acquire+0x140/0x2e0 kernel/locking/lockdep.c:5868 __raw_spin_lock_bh include/linux/spinlock_api_smp.h:126 [inline] _raw_spin_lock_bh+0x48/0x60 kernel/locking/spinlock.c:178 spin_lock_bh include/linux/spinlock.h:356 [inline] ___neigh_create+0xdfc/0x21e0 net/core/neighbour.c:690 __neigh_create+0x80/0xa0 net/core/neighbour.c:744 ip_neigh_gw4+0x258/0x384 include/net/route.h:407 ip_neigh_for_gw include/net/route.h:-1 [inline] ip_finish_output2+0x778/0x1240 net/ipv4/ip_output.c:231 __ip_finish_output+0x1b0/0x44c net/ipv4/ip_output.c:-1 ip_finish_output+0x44/0x304 net/ipv4/ip_output.c:325 NF_HOOK_COND include/linux/netfilter.h:307 [inline] ip_output+0x284/0x3f8 net/ipv4/ip_output.c:438 dst_output include/net/dst.h:464 [inline] ip_local_out+0x120/0x15c net/ipv4/ip_output.c:131 iptunnel_xmit+0x4a0/0x9dc net/ipv4/ip_tunnel_core.c:84 udp_tunnel_xmit_skb+0x1d0/0x2f0 net/ipv4/udp_tunnel_core.c:193 send4+0x868/0xc68 drivers/net/wireguard/socket.c:85 wg_socket_send_skb_to_peer+0xc4/0x1a4 drivers/net/wireguard/socket.c:175 wg_packet_create_data_done drivers/net/wireguard/send.c:251 [inline] wg_packet_tx_worker+0x19c/0x6c8 drivers/net/wireguard/send.c:276 process_one_work+0x7c0/0x1558 kernel/workqueue.c:3257 process_scheduled_works kernel/workqueue.c:3340 [inline] worker_thread+0x958/0xed8 kernel/workqueue.c:3421 kthread+0x5fc/0x75c kernel/kthread.c:463 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:844