r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10)
r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10)
r2 = syz_genetlink_get_family_id$netlbl_mgmt(&(0x7f0000000100), r0)
sendmsg$NLBL_MGMT_C_ADDDEF(r1, &(0x7f0000000280)={0x0, 0x0, &(0x7f0000000180)={&(0x7f00000002c0)={0x38, r2, 0x1, 0x0, 0x0, {}, [@NLBL_MGMT_A_IPV4MASK={0x8, 0x8, @multicast2}, @NLBL_MGMT_A_PROTOCOL={0x8}, @NLBL_MGMT_A_IPV6MASK={0x14, 0x7, @loopback}]}, 0x38}}, 0x0)