BUG: MAX_LOCKDEP_KEYS too low! turning off the locking correctness validator. CPU: 0 UID: 0 PID: 10816 Comm: syz.8.28614 Not tainted syzkaller #0 PREEMPT(full) Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025 Call Trace: dump_stack_lvl+0x189/0x250 lib/dump_stack.c:120 register_lock_class+0x2dc/0x320 kernel/locking/lockdep.c:1332 __lock_acquire+0xae/0x2cf0 kernel/locking/lockdep.c:5112 lock_acquire+0x117/0x340 kernel/locking/lockdep.c:5868 __raw_spin_lock_bh include/linux/spinlock_api_smp.h:126 [inline] _raw_spin_lock_bh+0x36/0x50 kernel/locking/spinlock.c:178 spin_lock_bh include/linux/spinlock.h:356 [inline] dev_reset_queue+0x138/0x1b0 net/sched/sch_generic.c:1308 netdev_for_each_tx_queue include/linux/netdevice.h:2680 [inline] dev_deactivate_many+0x720/0xd40 net/sched/sch_generic.c:1374 __dev_close_many+0x152/0x6b0 net/core/dev.c:1740 netif_close_many+0x225/0x410 net/core/dev.c:1781 unregister_netdevice_many_notify+0xb19/0x2310 net/core/dev.c:12351 unregister_netdevice_many net/core/dev.c:12444 [inline] unregister_netdevice_queue+0x317/0x350 net/core/dev.c:12258 unregister_netdevice include/linux/netdevice.h:3405 [inline] __tun_detach+0x6d9/0x15d0 drivers/net/tun.c:621 tun_detach drivers/net/tun.c:637 [inline] tun_chr_close+0x10a/0x1c0 drivers/net/tun.c:3436 __fput+0x44c/0xa70 fs/file_table.c:468 task_work_run+0x1d4/0x260 kernel/task_work.c:233 exit_task_work include/linux/task_work.h:40 [inline] do_exit+0x6c5/0x2310 kernel/exit.c:973 do_group_exit+0x21c/0x2d0 kernel/exit.c:1114 get_signal+0x1285/0x1340 kernel/signal.c:3034 arch_do_signal_or_restart+0x9a/0x7a0 arch/x86/kernel/signal.c:337 __exit_to_user_mode_loop kernel/entry/common.c:41 [inline] exit_to_user_mode_loop+0x87/0x4f0 kernel/entry/common.c:75 __exit_to_user_mode_prepare include/linux/irq-entry-common.h:226 [inline] syscall_exit_to_user_mode_prepare include/linux/irq-entry-common.h:256 [inline] syscall_exit_to_user_mode_work include/linux/entry-common.h:159 [inline] syscall_exit_to_user_mode include/linux/entry-common.h:194 [inline] do_syscall_64+0x2e3/0xf80 arch/x86/entry/syscall_64.c:100 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f810898f749 Code: Unable to access opcode bytes at 0x7f810898f71f. RSP: 002b:00007f81098d00e8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca RAX: fffffffffffffe00 RBX: 00007f8108be5fa8 RCX: 00007f810898f749 RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00007f8108be5fa8 RBP: 00007f8108be5fa0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007f8108be6038 R14: 00007ffc581695a0 R15: 00007ffc58169688