device veth0_vlan left promiscuous mode
device veth1_macvtap left promiscuous mode
device veth0_macvtap left promiscuous mode
device veth0_vlan left promiscuous mode
BUG: MAX_LOCKDEP_CHAINS too low!
turning off the locking correctness validator.
CPU: 1 PID: 23645 Comm: kworker/u4:8 Not tainted 5.7.0-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Workqueue: netns cleanup_net
Call Trace:
 __dump_stack lib/dump_stack.c:77 [inline]
 dump_stack+0x188/0x20d lib/dump_stack.c:118
 add_chain_cache kernel/locking/lockdep.c:3063 [inline]
 lookup_chain_cache_add kernel/locking/lockdep.c:3162 [inline]
 validate_chain kernel/locking/lockdep.c:3183 [inline]
 __lock_acquire.cold+0x27b/0x3d9 kernel/locking/lockdep.c:4380
 lock_acquire+0x1f2/0x8f0 kernel/locking/lockdep.c:4959
 __raw_spin_lock include/linux/spinlock_api_smp.h:142 [inline]
 _raw_spin_lock+0x2a/0x40 kernel/locking/spinlock.c:151
 spin_lock include/linux/spinlock.h:353 [inline]
 kfree_call_rcu+0x4d3/0x820 kernel/rcu/tree.c:3237
 __hw_addr_del_entry net/core/dev_addr_lists.c:107 [inline]
 __hw_addr_del_entry+0x2dd/0x3b0 net/core/dev_addr_lists.c:88
 __hw_addr_del_ex+0x129/0x150 net/core/dev_addr_lists.c:121
 __dev_mc_del+0x74/0xd0 net/core/dev_addr_lists.c:806
 igmp6_group_dropped+0x2f5/0x9b0 net/ipv6/mcast.c:705
 __ipv6_dev_mc_dec+0x1ed/0x300 net/ipv6/mcast.c:955
 addrconf_leave_solict.part.0+0xb5/0xf0 net/ipv6/addrconf.c:2154
 addrconf_leave_solict net/ipv6/addrconf.c:6040 [inline]
 __ipv6_ifa_notify+0x2a7/0xb50 net/ipv6/addrconf.c:6040
 addrconf_ifdown+0x8d2/0x12f0 net/ipv6/addrconf.c:3791
 addrconf_notify+0x5a6/0x2270 net/ipv6/addrconf.c:3602
 notifier_call_chain+0xc0/0x230 kernel/notifier.c:83
 call_netdevice_notifiers_info net/core/dev.c:2016 [inline]
 call_netdevice_notifiers_info+0xb5/0x130 net/core/dev.c:2001
 call_netdevice_notifiers_extack net/core/dev.c:2028 [inline]
 call_netdevice_notifiers net/core/dev.c:2042 [inline]
 dev_close_many+0x2f5/0x620 net/core/dev.c:1617
 rollback_registered_many+0x3ad/0xe70 net/core/dev.c:8932
 unregister_netdevice_many.part.0+0x16/0x1e0 net/core/dev.c:10106
 unregister_netdevice_many net/core/dev.c:10105 [inline]
 default_device_exit_batch+0x311/0x3d0 net/core/dev.c:10589
 ops_exit_list.isra.0+0x103/0x150 net/core/net_namespace.c:189
 cleanup_net+0x511/0xa50 net/core/net_namespace.c:603
 process_one_work+0x965/0x16a0 kernel/workqueue.c:2268
 worker_thread+0x96/0xe20 kernel/workqueue.c:2414
 kthread+0x388/0x470 kernel/kthread.c:268
 ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:351