batman_adv: batadv0: Interface activated: batadv_slave_1
IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready
IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready
BUG: spinlock recursion on CPU#1, syz-executor151/7401
 lock: 0xffff8880906e5de8, .magic: dead4ead, .owner: syz-executor151/7401, .owner_cpu: 1
CPU: 1 PID: 7401 Comm: syz-executor151 Not tainted 4.14.170-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
 __dump_stack lib/dump_stack.c:17 [inline]
 dump_stack+0x142/0x197 lib/dump_stack.c:58
 spin_dump.cold+0x56/0xa6 kernel/locking/spinlock_debug.c:67
 spin_bug kernel/locking/spinlock_debug.c:75 [inline]
 debug_spin_lock_before kernel/locking/spinlock_debug.c:84 [inline]
 do_raw_spin_lock+0x1e3/0x240 kernel/locking/spinlock_debug.c:112
 _raw_spin_lock_nested+0x3d/0x50 kernel/locking/spinlock.c:363
 netif_addr_lock_nested include/linux/netdevice.h:3699 [inline]
 dev_mc_sync+0x115/0x1d0 net/core/dev_addr_lists.c:765
 vlan_dev_set_rx_mode+0x3f/0x80 net/8021q/vlan_dev.c:486
 __dev_set_rx_mode+0x1a8/0x2b0 net/core/dev.c:6718
 dev_uc_unsync net/core/dev_addr_lists.c:600 [inline]
 dev_uc_unsync+0x181/0x1d0 net/core/dev_addr_lists.c:592
 bond_hw_addr_flush+0x67/0xf0 drivers/net/bonding/bond_main.c:559
 bond_enslave+0x1f1d/0x4c70 drivers/net/bonding/bond_main.c:1779
 do_set_master net/core/rtnetlink.c:1961 [inline]
 do_set_master+0x19f/0x200 net/core/rtnetlink.c:1936
 rtnl_newlink+0x12ed/0x1700 net/core/rtnetlink.c:2756
 rtnetlink_rcv_msg+0x3da/0xb70 net/core/rtnetlink.c:4315
 netlink_rcv_skb+0x14f/0x3c0 net/netlink/af_netlink.c:2432
 rtnetlink_rcv+0x1d/0x30 net/core/rtnetlink.c:4327
 netlink_unicast_kernel net/netlink/af_netlink.c:1286 [inline]
 netlink_unicast+0x44d/0x650 net/netlink/af_netlink.c:1312
 netlink_sendmsg+0x7c4/0xc60 net/netlink/af_netlink.c:1877
 sock_sendmsg_nosec net/socket.c:646 [inline]
 sock_sendmsg+0xce/0x110 net/socket.c:656
 ___sys_sendmsg+0x70a/0x840 net/socket.c:2062
 __sys_sendmsg+0xb9/0x140 net/socket.c:2096
 SYSC_sendmsg net/socket.c:2107 [inline]
 SyS_sendmsg+0x2d/0x50 net/socket.c:2103
 do_syscall_64+0x1e8/0x640 arch/x86/entry/common.c:292
 entry_SYSCALL_64_after_hwframe+0x42/0xb7
RIP: 0033:0x4435a9
RSP: 002b:00007ffc0d24aca8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00000000004435a9
RDX: 0000000000000000 RSI: 0000000020000080 RDI: 0000000000000010
RBP: 0000000000000003 R08: 00000000bb1414ac R09: 00000000bb1414ac
R10: 00000000bb1414ac R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000404930 R14: 0000000000000000 R15: 0000000000000000