BUG: MAX_LOCKDEP_KEYS too low! turning off the locking correctness validator. CPU: 0 UID: 0 PID: 27628 Comm: syz.1.10938 Not tainted syzkaller #0 PREEMPT(full) Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/07/2026 Call Trace: dump_stack_lvl+0xe8/0x150 lib/dump_stack.c:120 register_lock_class+0x2aa/0x2e0 kernel/locking/lockdep.c:1376 __lock_acquire+0x10c/0x2de0 kernel/locking/lockdep.c:5162 lock_acquire+0x115/0x350 kernel/locking/lockdep.c:5942 __raw_spin_lock_bh include/linux/spinlock_api_smp.h:182 [inline] _raw_spin_lock_bh+0x36/0x50 kernel/locking/spinlock.c:205 spin_lock_bh include/linux/spinlock.h:353 [inline] dev_reset_queue+0x138/0x1b0 include/net/sch_generic.h:754 netdev_for_each_tx_queue include/linux/netdevice.h:2764 [inline] dev_deactivate_many+0x778/0xda0 net/sched/sch_generic.c:1394 __dev_close_many+0x17b/0x6e0 net/core/dev.c:1820 netif_close_many+0x249/0x660 net/core/dev.c:1862 unregister_netdevice_many_notify+0x7aa/0x1d80 net/core/dev.c:12666 unregister_netdevice_many net/core/dev.c:12768 [inline] unregister_netdevice_queue+0x2f5/0x340 net/core/dev.c:12564 unregister_netdevice include/linux/netdevice.h:3509 [inline] __tun_detach+0x1074/0x1900 drivers/net/tun.c:641 tun_detach drivers/net/tun.c:657 [inline] tun_chr_close+0x10a/0x1c0 drivers/net/tun.c:3598 __fput+0x408/0xa40 fs/file_table.c:512 fput_close_sync+0x11f/0x240 fs/file_table.c:618 filp_close_sync+0x6e/0xa0 fs/open.c:1573 __range_close fs/file.c:919 [inline] __do_sys_close_range fs/file.c:1003 [inline] __se_sys_close_range+0xa77/0xef0 fs/file.c:954 do_syscall_x64 arch/x86/entry/syscall_64.c:61 [inline] do_syscall_64+0x166/0x520 arch/x86/entry/syscall_64.c:84 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7fa2bff9f559 Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007ffe2db56418 EFLAGS: 00000246 ORIG_RAX: 00000000000001b4 RAX: ffffffffffffffda RBX: 00007fa2c0227da0 RCX: 00007fa2bff9f559 RDX: 0000000000000000 RSI: 000000000000001e RDI: 0000000000000003 RBP: 00007fa2c0227da0 R08: 0000000000000006 R09: 0000000000000000 R10: 00007fa2c0227cb0 R11: 0000000000000246 R12: 000000000019661e R13: 00007fa2c022627c R14: 000000000019647d R15: 00007fa2c0226270