Foster was charged with second degree possession, according to the website, and bond was set at $2,500.
During his rookie season, Foster showed promise at outside linebacker and compiled 72 tackles, good for second on San Francisco, in only 10 games.
The report cited the Tuscaloosa Sheriff's Office arrest database.
Well this is not the greatest start to the offseason for former Alabama star linebacker Reuben Foster.
North Carolina gerrymandering decision draws comments from KU professor
However, in a statement from State Senate President Pro Tempore Joe Scarnati (R-25), he says the lawsuit should be put to rest. The latest cases focus on a different issue: Whether it's OK to draw district lines to help - or hurt - political parties.
Last March, Foster was dismissed from the 2017 NFL Scouting Combine after an altercation with medical staff.
A first round pick in last year's National Football League draft, Foster is now widely viewed as one of the NFL's most promising young defensive players. He blew up at medical personnel at the National Football League combine and his urine sample came back dilute, which is an automatic positive test.
The 49ers finished the season on a five-game winning streak, but still ended the year at 6-10.