A320
Flight Crew Air Transport Pilot (ATP); Flight Crew Instrument; Flight Crew Multiengine
Situational Awareness
Flight Deck / Cabin / Aircraft Event Smoke / Fire / Fumes / Odor
Flight Crew Overcame Equipment Problem; General Maintenance Action
Aircraft; Environment - Non Weather Related; Human Factors
I did not have access to electronic means of reporting; so I gave a verbal report to the  hotline in the morning of [date]. Just before the descent to ZZZ; the #1 Flight Attendant reported to me a musty; dirty sock odor in the cabin and both galleys. There was no smell or any other indication in the cockpit. After landing we informed Maintenance and Operations about the logbook entry. My investigation of the galley and cabin revealed no lingering smells. I didn't receive any complaints from the passengers. I completed a report to the company and an Aircraft Smoke; Odor and Fumes report for Maintenance.
A320 Captain reported Flight Attendant notification of 'dirty socks odor' in passenger cabin.