From: Garming Sam <garming@catalyst.net.nz>
Date: Mon, 11 Mar 2019 22:16:38 +0000 (+1300)
Subject: libnet vampire: NULL access bug fix
X-Git-Tag: tdb-1.4.1~504
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=fc2e521a5e34988547de27a024a180b83d6504ee;p=thirdparty%2Fsamba.git

libnet vampire: NULL access bug fix

NULL pointer access bug fix

Signed-off-by: Garming Sam <garming@catalyst.net.nz>
Signed-off-by: Aaron Haslett <aaronhaslett@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
---

diff --git a/source4/libnet/libnet_vampire.c b/source4/libnet/libnet_vampire.c
index 6374946244e..0a2f62d703b 100644
--- a/source4/libnet/libnet_vampire.c
+++ b/source4/libnet/libnet_vampire.c
@@ -554,7 +554,12 @@ WERROR libnet_vampire_cb_schema_chunk(void *private_data,
 		s->schema_part.last_object->next_object = talloc_steal(s->schema_part.last_object,
 								       first_object);
 	}
-	for (cur = first_object; cur->next_object; cur = cur->next_object) {}
+	if (first_object != NULL) {
+		for (cur = first_object; cur->next_object; cur = cur->next_object) {}
+	} else {
+		cur = first_object;
+	}
+
 	s->schema_part.last_object = cur;
 
 	if (!c->partition->more_data) {