ldb:ldb_kv_dn_list_find_val: check for int overflow

Signed-off-by: Douglas Bagnall <douglas.bagnall@catalyst.net.nz>
Reviewed-by: Stefan Metzmacher <metze@samba.org>

diff --git a/lib/ldb/ldb_key_value/ldb_kv_index.c b/lib/ldb/ldb_key_value/ldb_kv_index.c
index 2a31b35ebcf97ffcf4d274a85d73b248dec4a83f..dce3782404142478833cd2fc5b41e64e14200eb9 100644 (file)
--- a/lib/ldb/ldb_key_value/ldb_kv_index.c
+++ b/lib/ldb/ldb_key_value/ldb_kv_index.c
@@ -275,6 +275,10 @@ static int ldb_kv_dn_list_find_val(struct ldb_kv_private *ldb_kv,
        unsigned int i;
        struct ldb_val *exact = NULL, *next = NULL;
 
+       if (unlikely(list->count > INT_MAX)) {
+               return -1;
+       }
+
        if (ldb_kv->cache->GUID_index_attribute == NULL) {
                for (i=0; i<list->count; i++) {
                        if (ldb_val_equal_exact(&list->dn[i], v) == 1) {