CHRIS BROWN TRYING TO AVOID JAIL? ENTERS REHAB IN MALIBU

Anybody else who entered rehab we would say this is great!  But we know Breezy is a train wreck and a publicity stunt type of girl guy.  Chris Brown has just entered a rehab facility for anger management issues ... presumably to deal with his temper problems and to blunt a possible prison sentence.

Sources tell TMZ ... Brown's attorney, Mark Geragos, just dropped him off at a facility in Malibu. The move doesn't come a day too soon. 

 Sources are saying the L.A. County probation department is going full bore in its investigation to determine if Brown violated his probation in the Rihanna case by getting arrested in D.C. over the weekend ... after allegedly punching a guy in the nose.

Sources tell TMZ, Brown flew to L.A. after getting released from the D.C. jail and met with L.A. County Probation Department officials today.

 Also it's likely the Probation Department will determine that Brown violated his probation, and a judge could sentence him to as much as 4 years in prison.

Along with Geragos, we're told his mom and GF Karrueche accompanied Chris to the facility.

The rehab move could show a measure of good faith and contrition.  We bet he won't last a week in  his high end hotel, rehab.