id summary reporter owner description type status priority milestone component version resolution keywords cc 98 NULL pointer check for address to exported function Knut Landmark "In the following code fragment occurring twice in zoo_service_loader.c, `GetProcAddress` or `dlsym` will return `NULL` if a user has mistyped the service name (the WPS `Identifier` parameter): {{{ #ifdef WIN32 typedef int (CALLBACK* execute_t)(char***,char***,char***); execute_t execute=(execute_t)GetProcAddress(so,fname); #else typedef int (*execute_t)(char***,char***,char***); execute_t execute=(execute_t)dlsym(so,fname); #endif }}} This will cause a crash when attempting to invoke the function at the address given by `execute`: {{{ *eres=execute(&m,&request_input_real_format,&request_output_real_format); }}} There should be a check to avoid this happening (with an error message). " defect closed major zoo-kernel fixed