fix: memory leaks, resource leaks, out of bounds and bugs

ASTERISK-26119 #close

Change-Id: Iecbf7d0f360a021147344c4e83ab242fd1e7512c

1 files changed, 8 insertions, 1 deletions

diff --git a/main/ast_expr2.c b/main/ast_expr2.c
index c700b01d7..b914598ec 100644
--- a/main/ast_expr2.c
+++ b/main/ast_expr2.c
@@ -3669,13 +3669,20 @@ op_tildetilde (struct val *a, struct val *b)
 	/* strip double quotes from both -- */
 	strip_quotes(a);
 	strip_quotes(b);
-	
+
 	vs = malloc(strlen(a->u.s)+strlen(b->u.s)+1);
+	if (vs == NULL) {
+		ast_log(LOG_WARNING, "malloc() failed\n");
+		return NULL;
+	}
+
 	strcpy(vs,a->u.s);
 	strcat(vs,b->u.s);
 
 	v = make_str(vs);
 
+	free(vs);
+
 	/* free arguments */
 	free_value(a);
 	free_value(b);