formats: Do not use memcpy with NULL source or destination in memread…

…_buf()
omf2097 · Dec 1, 2024 · bed5a7b · bed5a7b
1 parent eb66f0c
commit bed5a7b
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/src/formats/internal/memreader.c b/src/formats/internal/memreader.c
@@ -49,7 +49,7 @@ void memreader_close(memreader *reader) {
 }
 
 int memread_buf(memreader *reader, char *buf, int len) {
-    if(reader->pos + len > reader->len) {
+    if(reader->pos + len > reader->len || buf == NULL || reader->buf == NULL) {
         return 0;
     }
     memcpy(buf, reader->buf + reader->pos, len);