BUG: MAX_LOCKDEP_KEYS too low! turning off the locking correctness validator. CPU: 0 UID: 0 PID: 11027 Comm: syz.3.1451 Not tainted syzkaller #0 PREEMPT(full) Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/18/2025 Call Trace: dump_stack_lvl+0x189/0x250 lib/dump_stack.c:120 register_lock_class+0x2e8/0x320 kernel/locking/lockdep.c:1332 __lock_acquire+0x99/0xd20 kernel/locking/lockdep.c:5112 lock_acquire+0x120/0x360 kernel/locking/lockdep.c:5868 __raw_spin_lock include/linux/spinlock_api_smp.h:133 [inline] _raw_spin_lock+0x2e/0x40 kernel/locking/spinlock.c:154 spin_lock include/linux/spinlock.h:351 [inline] __netif_tx_lock include/linux/netdevice.h:4685 [inline] netif_freeze_queues net/sched/sch_generic.c:461 [inline] netif_tx_lock net/sched/sch_generic.c:470 [inline] netif_tx_lock_bh include/linux/netdevice.h:4770 [inline] netdev_watchdog_down net/sched/sch_generic.c:570 [inline] dev_deactivate_many+0x2fb/0xd40 net/sched/sch_generic.c:1370 dev_deactivate net/sched/sch_generic.c:1401 [inline] dev_qdisc_change_tx_queue_len+0x180/0x510 net/sched/sch_generic.c:1457 netif_change_tx_queue_len+0x162/0x270 net/core/dev.c:9816 do_setlink+0xdfb/0x41c0 net/core/rtnetlink.c:3174 rtnl_group_changelink net/core/rtnetlink.c:3783 [inline] __rtnl_newlink net/core/rtnetlink.c:3937 [inline] rtnl_newlink+0x14ad/0x1c80 net/core/rtnetlink.c:4065 rtnetlink_rcv_msg+0x7cc/0xb70 net/core/rtnetlink.c:6954 netlink_rcv_skb+0x208/0x470 net/netlink/af_netlink.c:2552 netlink_unicast_kernel net/netlink/af_netlink.c:1320 [inline] netlink_unicast+0x82c/0x9e0 net/netlink/af_netlink.c:1346 netlink_sendmsg+0x805/0xb30 net/netlink/af_netlink.c:1896 sock_sendmsg_nosec net/socket.c:727 [inline] __sock_sendmsg+0x21c/0x270 net/socket.c:742 ____sys_sendmsg+0x505/0x830 net/socket.c:2630 ___sys_sendmsg+0x21f/0x2a0 net/socket.c:2684 __sys_sendmsg net/socket.c:2716 [inline] __do_sys_sendmsg net/socket.c:2721 [inline] __se_sys_sendmsg net/socket.c:2719 [inline] __x64_sys_sendmsg+0x19b/0x260 net/socket.c:2719 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xfa/0x3b0 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f99a338eec9 Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 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 a8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f99a4167038 EFLAGS: 00000246 ORIG_RAX: 000000000000002e RAX: ffffffffffffffda RBX: 00007f99a35e5fa0 RCX: 00007f99a338eec9 RDX: 0000000004000000 RSI: 0000200000000200 RDI: 0000000000000003 RBP: 00007f99a3411f91 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007f99a35e6038 R14: 00007f99a35e5fa0 R15: 00007ffca0ab69c8