source/blender/blenloader/intern/readfile.c - use memmove rather then strncpy for overlapping strings.

source/blender/blenlib/intern/fileops.c - zero length strings would check for a slash before the strings first char.
source/gameengine/GameLogic/SCA_JoystickSensor.cpp - m_istrig_prev was not initialized
source/blender/src/editmesh.c - active face pointer was not set to NULL in free_editMesh()

3 files changed, 4 insertions, 3 deletions

diff --git a/source/blender/blenlib/intern/fileops.c b/source/blender/blenlib/intern/fileops.c
index 76437720e45..ebd8f4be1cf 100644
--- a/source/blender/blenlib/intern/fileops.c
+++ b/source/blender/blenlib/intern/fileops.c
@@ -95,12 +95,12 @@ char *BLI_last_slash(const char *string) {
 void BLI_add_slash(char *string) {
 	int len = strlen(string);
 #ifdef WIN32
-	if (string[len-1]!='\\') {
+	if (len==0 || string[len-1]!='\\') {
 		string[len] = '\\';
 		string[len+1] = '\0';
 	}
 #else
-	if (string[len-1]!='/') {
+	if (len==0 || string[len-1]!='/') {
 		string[len] = '/';
 		string[len+1] = '\0';
 	}
diff --git a/source/blender/blenloader/intern/readfile.c b/source/blender/blenloader/intern/readfile.c
index 0193acb9f98..c2dcc86ae41 100644
--- a/source/blender/blenloader/intern/readfile.c
+++ b/source/blender/blenloader/intern/readfile.c
@@ -7924,7 +7924,7 @@ static void do_versions(FileData *fd, Library *lib, Main *main)
 					bMessageActuator *msgAct = (bMessageActuator *) act->data;
 					if (strlen(msgAct->toPropName) > 2) {
 						/* strip first 2 chars, would have only worked if these were OB anyway */
-						strncpy(msgAct->toPropName, msgAct->toPropName+2, sizeof(msgAct->toPropName));
+						memmove( msgAct->toPropName, msgAct->toPropName+2, sizeof(msgAct->toPropName)-2 );
 					} else {
 						msgAct->toPropName[0] = '\0';
 					}
diff --git a/source/blender/src/editmesh.c b/source/blender/src/editmesh.c
index e96c3f6d40f..a573ea85ca8 100644
--- a/source/blender/src/editmesh.c
+++ b/source/blender/src/editmesh.c
@@ -633,6 +633,7 @@ void free_editMesh(EditMesh *em)
 
 	if(em->retopo_paint_data) retopo_free_paint_data(em->retopo_paint_data);
 	em->retopo_paint_data= NULL;
+	em->act_face = NULL;
 }
 
 /* on G.editMesh */