s3: Fix uninitialized memory read in talloc_free()

Thanks to laurent gaffie <laurent.gaffie@gmail.com> for reporting
this issue!

diff --git a/source3/libsmb/clispnego.c b/source3/libsmb/clispnego.c
index 4581ce40267eaf6a829356b8b10f4c93121558aa..0a907ba7197d3fbbd15fe68b70aab53358cf28be 100644 (file)
--- a/source3/libsmb/clispnego.c
+++ b/source3/libsmb/clispnego.c
@@ -127,6 +127,9 @@ bool spnego_parse_negTokenInit(TALLOC_CTX *ctx,
        asn1_start_tag(data,ASN1_SEQUENCE(0));
        for (i=0; asn1_tag_remaining(data) > 0 && i < ASN1_MAX_OIDS-1; i++) {
                asn1_read_OID(data,ctx, &OIDs[i]);
+               if (data->has_error) {
+                       break;
+               }
        }
        OIDs[i] = NULL;
        asn1_end_tag(data);