add a range check for dch_id

this should fix https://bugs.wireshark.org/bugzilla/show_bug.cgi?id=9005 svn path=/trunk/; revision=51195
CTSRD-SOAAP · Aug 7, 2013 · 2f072ac · 2f072ac
1 parent 6fea3ab
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diff --git a/asn1/nbap/nbap.cnf b/asn1/nbap/nbap.cnf
@@ -671,7 +671,8 @@ guint32 payload_crc_value;
 #.FN_BODY DCH-Specific-FDD-Item/dCH-ID
 
   offset = dissect_per_constrained_integer(tvb, offset, actx, tree, hf_index,
-                                                            0U, 255U, &dch_id, FALSE);
+                                                            0U, maxNrOfDCHs, &dch_id, FALSE);
+
     if(g_num_dch_in_flow>0){
         g_dchs_in_flow_list[g_num_dch_in_flow-1]=dch_id;
         nbap_dch_chnl_info[dch_id].next_dch = 0;