libwbclient: Ensure correct 0-termination in wbcGetSidAliases

diff --git a/nsswitch/libwbclient/wbc_sid.c b/nsswitch/libwbclient/wbc_sid.c
index e58912214eebcac29ae0b1d493ca909025c01db6..091a550badaeeab0ab121c48417708274a5eab13 100644 (file)
--- a/nsswitch/libwbclient/wbc_sid.c
+++ b/nsswitch/libwbclient/wbc_sid.c
@@ -576,6 +576,7 @@ wbcErr wbcGetSidAliases(const struct wbcDomainSid *dom_sid,
                extra_data[extra_data_len++] = '\n';
                extra_data[extra_data_len] = '\0';
        }
+       extra_data_len += 1;
 
        request.extra_data.data = extra_data;
        request.extra_len = extra_data_len;