BUG: MAX_LOCKDEP_KEYS too low! turning off the locking correctness validator. CPU: 2 UID: 0 PID: 25538 Comm: syz.6.8280 Not tainted syzkaller #0 PREEMPT(full) Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014 Call Trace: __dump_stack lib/dump_stack.c:94 [inline] dump_stack_lvl+0x116/0x1f0 lib/dump_stack.c:120 register_lock_class+0x419/0x4c0 kernel/locking/lockdep.c:1332 __lock_acquire+0x9f/0x1ce0 kernel/locking/lockdep.c:5112 lock_acquire kernel/locking/lockdep.c:5868 [inline] lock_acquire+0x179/0x350 kernel/locking/lockdep.c:5825 __raw_spin_lock_bh include/linux/spinlock_api_smp.h:126 [inline] _raw_spin_lock_bh+0x33/0x40 kernel/locking/spinlock.c:178 spin_lock_bh include/linux/spinlock.h:356 [inline] dev_reset_queue+0xa9/0x1d0 net/sched/sch_generic.c:1312 netdev_for_each_tx_queue include/linux/netdevice.h:2660 [inline] dev_deactivate_many+0x4e5/0xd50 net/sched/sch_generic.c:1378 __dev_close_many+0x150/0x760 net/core/dev.c:1739 netif_close_many+0x233/0x630 net/core/dev.c:1780 unregister_netdevice_many_notify+0x563/0x24c0 net/core/dev.c:12136 rtnl_delete_link net/core/rtnetlink.c:3513 [inline] rtnl_dellink+0x3cb/0xa80 net/core/rtnetlink.c:3555 rtnetlink_rcv_msg+0x95e/0xe90 net/core/rtnetlink.c:6946 netlink_rcv_skb+0x155/0x420 net/netlink/af_netlink.c:2552 netlink_unicast_kernel net/netlink/af_netlink.c:1320 [inline] netlink_unicast+0x5aa/0x870 net/netlink/af_netlink.c:1346 netlink_sendmsg+0x8d1/0xdd0 net/netlink/af_netlink.c:1896 sock_sendmsg_nosec net/socket.c:714 [inline] __sock_sendmsg net/socket.c:729 [inline] ____sys_sendmsg+0xa98/0xc70 net/socket.c:2614 ___sys_sendmsg+0x134/0x1d0 net/socket.c:2668 __sys_sendmsg+0x16d/0x220 net/socket.c:2700 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xcd/0x4e0 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7ff59778eec9 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:00007ff59857a038 EFLAGS: 00000246 ORIG_RAX: 000000000000002e RAX: ffffffffffffffda RBX: 00007ff5979e6090 RCX: 00007ff59778eec9 RDX: 0000000000000000 RSI: 0000200000000080 RDI: 000000000000000d RBP: 00007ff597811f91 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ff5979e6128 R14: 00007ff5979e6090 R15: 00007ffedf7d4208 team0 (unregistering): Port device team_slave_0 removed team0 (unregistering): Port device team_slave_1 removed