3044. [bug] Hold the socket manager lock while freeing the socket.

[RT #23333]

CHANGES

@@ -1,3 +1,6 @@
+3044.	[bug]		Hold the socket manager lock while freeing the socket.
+			[RT #23333]
+
 3043.	[test]		Merged in the NetBSD ATF test framework (currently
 			version 0.12) for development of future unit tests.
                         Use configure --with-atf to build ATF internally

lib/isc/unix/socket.c

@@ -15,7 +15,7 @@
  * PERFORMANCE OF THIS SOFTWARE.
  */
 
-/* $Id: socket.c,v 1.336 2011/02/18 04:19:05 marka Exp $ */
+/* $Id: socket.c,v 1.337 2011/02/28 12:48:30 marka Exp $ */
 
 /*! \file */
 
@@ -1997,9 +1997,10 @@ destroy(isc__socket_t **sockp) {
 		SIGNAL(&manager->shutdown_ok);
 #endif /* USE_WATCHER_THREAD */
 
-	UNLOCK(&manager->lock);
-
+	/* can't unlock manager as its memory context is still used */
 	free_socket(sockp);
+
+	UNLOCK(&manager->lock);
 }
 
 static isc_result_t