diff --git a/src/api.c b/src/api.c index 6b808cf7df17cbe19d87767a7ec6ba53a4c4a30e_c3JjL2FwaS5j..8a3b91a7e20462303960e749d771ca1a7cade7ad_c3JjL2FwaS5j 100644 --- a/src/api.c +++ b/src/api.c @@ -117,7 +117,12 @@ YAML_DECLARE(int) yaml_stack_extend(void **start, void **top, void **end) { - void *new_start = yaml_realloc(*start, ((char *)*end - (char *)*start)*2); + void *new_start; + + if ((char *)*end - (char *)*start >= INT_MAX / 2) + return 0; + + new_start = yaml_realloc(*start, ((char *)*end - (char *)*start)*2); if (!new_start) return 0;