id summary reporter owner description type status milestone component version severity resolution keywords cc 5859 win32 shared_mutex constructor leaks on exceptions phrosty@… viboes shared_mutex's contructor contains three calls to create_anonymous_semaphore(), each of which can throw. If one of these throws, the unprotected handles of the previous ones will leak. Bugs closed Boost 1.49.0 thread Boost 1.47.0 Problem fixed shared_mutex viboes