From snapshot 6.1-20191012

diff --git a/ncurses/tinfo/comp_hash.c b/ncurses/tinfo/comp_hash.c

index 21f165ca..a62d38f9 100644

--- a/ncurses/tinfo/comp_hash.c

+++ b/ncurses/tinfo/comp_hash.c

@@ -63,7 +63,9 @@ _nc_find_entry(const char *string,

     hashvalue = data->hash_of(string);

-    if (data->table_data[hashvalue] >= 0) {

+    if (hashvalue >= 0

+	&& (unsigned) hashvalue < data->table_size

+	&& data->table_data[hashvalue] >= 0) {

 	real_table = _nc_get_table(termcap);

 	ptr = real_table + data->table_data[hashvalue];

@@ -96,7 +98,9 @@ _nc_find_type_entry(const char *string,

     const HashData *data = _nc_get_hash_info(termcap);

     int hashvalue = data->hash_of(string);

-    if (data->table_data[hashvalue] >= 0) {

+    if (hashvalue >= 0

+	&& (unsigned) hashvalue < data->table_size

+	&& data->table_data[hashvalue] >= 0) {

 	const struct name_table_entry *const table = _nc_get_table(termcap);

 	ptr = table + data->table_data[hashvalue];