--- a/addons/ooh323c/src/ooq931.c
+++ b/addons/ooh323c/src/ooq931.c
@@ -585,7 +585,7 @@
    unsigned int i;
    ASN1BOOL aligned=TRUE;
    int stat;
-   Q931InformationElement *ie;
+   Q931InformationElement *ie=NULL;
    /* OOCTXT *pctxt = &gH323ep.msgctxt; */
    if(q931Msg ==NULL)
    {
--- a/apps/app_directory.c
+++ b/apps/app_directory.c
@@ -396,7 +396,6 @@
 {
 	struct directory_item **block, *item;
 	int i, limit, res = 0;
-	char buf[9];
 
 	/* option p(n): cellphone pause option */
 	select_item_pause(chan, flags, opts);
@@ -409,13 +408,15 @@
 		for (i = 0; i < limit && !res; i++) {
 			item = block[i];
 
-			snprintf(buf, sizeof(buf), "digits/%d", i + 1);
 			/* Press <num> for <name>, [ extension <ext> ] */
 			res = ast_streamfile(chan, "dir-multi1", ast_channel_language(chan));
 			if (!res)
 				res = ast_waitstream(chan, AST_DIGIT_ANY);
-			if (!res)
+			if (!res) {
+				char buf[7+12]; /* INT_MIN has a length of 12 chars */
+				snprintf(buf, sizeof(buf), "digits/%d", i + 1);
 				res = ast_streamfile(chan, buf, ast_channel_language(chan));
+			}
 			if (!res)
 				res = ast_waitstream(chan, AST_DIGIT_ANY);
 			if (!res)
--- a/apps/app_voicemail.c
+++ b/apps/app_voicemail.c
@@ -11198,7 +11198,7 @@
 			int skipuser, int max_logins, int silent)
 {
 	int useadsi = 0, valid = 0, logretries = 0;
-	char password[AST_MAX_EXTENSION], *passptr;
+	char password[AST_MAX_EXTENSION], *passptr = NULL;
 	struct ast_vm_user vmus, *vmu = NULL;
 
 	/* If ADSI is supported, setup login screen */
--- a/funcs/func_odbc.c
+++ b/funcs/func_odbc.c
@@ -1181,7 +1181,7 @@
 static int init_acf_query(struct ast_config *cfg, char *catg, struct acf_odbc_query **query)
 {
 	const char *tmp;
-	const char *tmp2;
+	const char *tmp2 = NULL;
 	int i;
 
 	if (!cfg || !catg) {