ZBEE-TLV: Avoid undefined shift (CID 1545113)

crondaemon · Nov 23, 2024 · 1bacbae · 1bacbae
1 parent 610c33d
commit 1bacbae
Showing 1 changed file with 2 additions and 2 deletions.
diff --git a/epan/dissectors/packet-zbee-tlv.c b/epan/dissectors/packet-zbee-tlv.c
@@ -1193,7 +1193,7 @@ dissect_zdp_local_tlv (tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree,
 static unsigned
 dissect_zbee_tlv_chanmask(proto_tree *tree, tvbuff_t *tvb, unsigned offset, int hf_page, int hf_channel)
 {
-    int         i;
+    uint32_t    i;
     uint32_t    mask;
     uint8_t     page;
     proto_item *ti;
@@ -1245,7 +1245,7 @@ dissect_zbee_tlv_chanmask(proto_tree *tree, tvbuff_t *tvb, unsigned offset, int
          */
         if ((2 << i) & mask)
         {
-            while ((2 << i) & mask) i++;
+            while ((i<32) && ((2 << i) & mask)) i++;
             proto_item_append_text(ti, "-%d", i);
         }
     }