BUG: MAX_LOCKDEP_CHAINS too low! turning off the locking correctness validator. CPU: 0 UID: 0 PID: 867 Comm: kworker/0:2 Not tainted syzkaller #0 PREEMPT Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/02/2026 Workqueue: wg-kex-wg0 wg_packet_handshake_receive_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+0xfdc/0x2ebc kernel/locking/lockdep.c:5237 lock_acquire+0x140/0x364 kernel/locking/lockdep.c:5868 __raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:132 [inline] _raw_spin_lock_irqsave+0x5c/0x7c kernel/locking/spinlock.c:166 lock_timer_base+0xe8/0x1b0 kernel/time/timer.c:1004 __timer_delete+0x8c/0x114 kernel/time/timer.c:1380 timer_delete+0x24/0x34 kernel/time/timer.c:1406 wg_timers_any_authenticated_packet_received+0x20/0x30 drivers/net/wireguard/timers.c:181 wg_receive_handshake_packet drivers/net/wireguard/receive.c:201 [inline] wg_packet_handshake_receive_worker+0x60c/0xcf8 drivers/net/wireguard/receive.c:213 process_one_work kernel/workqueue.c:3314 [inline] process_scheduled_works+0x788/0x10b8 kernel/workqueue.c:3397 worker_thread+0x798/0xbd0 kernel/workqueue.c:3478 kthread+0x304/0x3d4 kernel/kthread.c:436 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:842