samba: infinite loop flaw in smbd on unexpected oplock break notification reply

smbd in Samba 3.0 before 3.0.37, 3.2 before 3.2.15, 3.3 before 3.3.8, and 3.4 before 3.4.2 allows remote authenticated users to cause a denial of service infinite loop via an unanticipated oplock break notification reply packet...