X-Git-Url: https://git.tcpdump.org/tcpdump/blobdiff_plain/11a07ed27ba5122c8cbd34e8c15bcf0b4969889d..12f66f69f7bf1ec1266ddbee90a7616cbf33696b:/print-vtp.c

diff --git a/print-vtp.c b/print-vtp.c
index d153cc19..d69c4093 100644
--- a/print-vtp.c
+++ b/print-vtp.c
@@ -241,7 +241,7 @@ vtp_print (netdissect_options *ndo,
 	 */
 
 	tptr += 4;
-	while (tptr < (pptr+length)) {
+	while ((unsigned)(tptr - pptr) < length) {
 
 	    ND_TCHECK_8BITS(tptr);
 	    len = *tptr;