device veth1_macvtap left promiscuous mode device veth0_macvtap left promiscuous mode device veth1_vlan left promiscuous mode device veth0_vlan left promiscuous mode BUG: MAX_LOCKDEP_CHAIN_HLOCKS too low! turning off the locking correctness validator. CPU: 0 PID: 255 Comm: kworker/u4:6 Not tainted 5.7.0-rc5-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:3100 [inline] lookup_chain_cache_add kernel/locking/lockdep.c:3181 [inline] validate_chain kernel/locking/lockdep.c:3202 [inline] __lock_acquire.cold+0x27/0x3f8 kernel/locking/lockdep.c:4355 lock_acquire+0x1f2/0x8f0 kernel/locking/lockdep.c:4934 __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+0x467/0x7a0 kernel/rcu/tree.c:3043 __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 ip_mc_filter_del net/ipv4/igmp.c:1155 [inline] __igmp_group_dropped+0x946/0xc50 net/ipv4/igmp.c:1286 igmp_group_dropped net/ipv4/igmp.c:1316 [inline] ip_mc_down+0xd5/0x370 net/ipv4/igmp.c:1724 inetdev_event+0xb9d/0x15b0 net/ipv4/devinet.c:1584 notifier_call_chain+0xc0/0x230 kernel/notifier.c:83 call_netdevice_notifiers_info net/core/dev.c:1948 [inline] call_netdevice_notifiers_info+0xb5/0x130 net/core/dev.c:1933 call_netdevice_notifiers_extack net/core/dev.c:1960 [inline] call_netdevice_notifiers net/core/dev.c:1974 [inline] dev_close_many+0x2f5/0x620 net/core/dev.c:1549 rollback_registered_many+0x3ad/0xe70 net/core/dev.c:8805 unregister_netdevice_many.part.0+0x16/0x1e0 net/core/dev.c:9990 unregister_netdevice_many net/core/dev.c:9989 [inline] default_device_exit_batch+0x311/0x3d0 net/core/dev.c:10473 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 device hsr_slave_0 left promiscuous mode device hsr_slave_1 left promiscuous mode team0 (unregistering): Port device team_slave_1 removed team0 (unregistering): Port device team_slave_0 removed bond0 (unregistering): (slave bond_slave_1): Releasing backup interface bond0 (unregistering): (slave bond_slave_0): Releasing backup interface bond0 (unregistering): Released all slaves device hsr_slave_0 left promiscuous mode device hsr_slave_1 left promiscuous mode team0 (unregistering): Port device team_slave_1 removed team0 (unregistering): Port device team_slave_0 removed bond0 (unregistering): (slave bond_slave_1): Releasing backup interface bond0 (unregistering): (slave bond_slave_0): Releasing backup interface bond0 (unregistering): Released all slaves device hsr_slave_0 left promiscuous mode device hsr_slave_1 left promiscuous mode team0 (unregistering): Port device team_slave_1 removed team0 (unregistering): Port device team_slave_0 removed bond0 (unregistering): (slave bond_slave_1): Releasing backup interface device bond_slave_1 left promiscuous mode bond0 (unregistering): (slave bond_slave_0): Releasing backup interface device bond_slave_0 left promiscuous mode bond0 (unregistering): Released all slaves device hsr_slave_0 left promiscuous mode device hsr_slave_1 left promiscuous mode team0 (unregistering): Port device team_slave_1 removed team0 (unregistering): Port device team_slave_0 removed bond0 (unregistering): (slave bond_slave_1): Releasing backup interface bond0 (unregistering): (slave bond_slave_0): Releasing backup interface bond0 (unregistering): Released all slaves device hsr_slave_1 left promiscuous mode team0 (unregistering): Port device team_slave_1 removed team0 (unregistering): Port device team_slave_0 removed bond0 (unregistering): (slave bond_slave_1): Releasing backup interface bond0 (unregistering): (slave bond_slave_0): Releasing backup interface bond0 (unregistering): Released all slaves device hsr_slave_0 left promiscuous mode device hsr_slave_1 left promiscuous mode team0 (unregistering): Port device team_slave_1 removed team0 (unregistering): Port device team_slave_0 removed bond0 (unregistering): (slave bond_slave_1): Releasing backup interface bond0 (unregistering): (slave bond_slave_0): Releasing backup interface bond0 (unregistering): Released all slaves device hsr_slave_0 left promiscuous mode device hsr_slave_1 left promiscuous mode team0 (unregistering): Port device team_slave_1 removed team0 (unregistering): Port device team_slave_0 removed bond0 (unregistering): (slave bond_slave_1): Releasing backup interface bond0 (unregistering): (slave bond_slave_0): Releasing backup interface bond0 (unregistering): Released all slaves device hsr_slave_0 left promiscuous mode device hsr_slave_1 left promiscuous mode team0 (unregistering): Port device team_slave_1 removed team0 (unregistering): Port device team_slave_0 removed bond0 (unregistering): (slave bond_slave_1): Releasing backup interface bond0 (unregistering): (slave bond_slave_0): Releasing backup interface bond0 (unregistering): Released all slaves device hsr_slave_1 left promiscuous mode device team_slave_1 left promiscuous mode @þ (unregistering): Port device team_slave_1 removed device team_slave_0 left promiscuous mode @þ (unregistering): Port device team_slave_0 removed bond0 (unregistering): (slave bond_slave_1): Releasing backup interface device bond_slave_1 left promiscuous mode bond0 (unregistering): (slave bond_slave_0): Releasing backup interface device bond_slave_0 left promiscuous mode bond0 (unregistering): Released all slaves device hsr_slave_0 left promiscuous mode device hsr_slave_1 left promiscuous mode team0 (unregistering): Port device team_slave_1 removed team0 (unregistering): Port device team_slave_0 removed bond0 (unregistering): (slave bond_slave_1): Releasing backup interface bond0 (unregistering): (slave bond_slave_0): Releasing backup interface bond0 (unregistering): Released all slaves