1-2: Victory in Sofia and sole leaders
Goals from Cristiano Ronaldo, who has now scored in seven consecutive matches, and Benzema seal the win against a determined Ludogorets.
Wednesday's encounter in Bulgaria saw the goalkeeper play his 142nd match in Europe's top club competition.
See how the Whites' arrival in the Bulgarian capital went.
Carroll (17 points) and Sergio Rodríguez (12 points and a PIR of 21) led the Whites to victory in the last game before the start of the Liga Endesa.
The academy graduate hits the figure in his seventh season with the Whites.
Cedrés and Lazo, who hit a brace, got the goals in Real Madrid's win over Ludogorets.