OXFORD, Miss. -- Jaylen Walton ran for a key fourth-quarter touchdown, and No. 10 Mississippi used a dominant defensive performance to beat Memphis 24-3 on Saturday night.

The Rebels (4-0) are undefeated through four games for the first time since 1970, overcoming a mistake-riddled performance by the offense and special teams.

It was an ugly night for Ole Miss quarterback Bo Wallace, who threw two interceptions and lost a fumble. The senior was 22-of-37 passing for 248 yards and two touchdowns -- both to Laquon Treadwell.

Ole Miss led just 7-3 after three quarters. Andrew Fletcher made a 19-yard field goal -- after missing his first two attempts earlier in the game -- to increase the Rebels' lead early in the fourth.

Walton's 23-yard run with 9:34 remaining pushed the advantage to 17-3. Memphis (2-2) managed just 104 total yards.