FIXED: Prevent potential null dereference

diff --git a/Sources/libMultiMarkdown/writer.c b/Sources/libMultiMarkdown/writer.c
index 8dccf8d838ae2ec00c5429cdf0cfea0db1c9b799..4138af4400afa085995833c47df1261ff7413ea6 100644 (file)
--- a/Sources/libMultiMarkdown/writer.c
+++ b/Sources/libMultiMarkdown/writer.c
@@ -1389,8 +1389,10 @@ void process_definition_block(mmd_engine * e, token * block) {
                                        }
 
                                        // Adjust the properties
-                                       free(f->label_text);
-                                       f->label_text = f->clean_text;
+                                       if (f) {
+                                               free(f->label_text);
+                                               f->label_text = f->clean_text;
+                                       }
 
                                        if (f->content->child &&
                                                        f->content->child->next &&