X-Git-Url: http://git.shiar.net/netris.git/blobdiff_plain/a3b41d71c27b89c5f3e82226316e031e3f8eb253..c10d1dbf9b8a08c22c5aae88fb92f9a282fe1120:/inet.c

diff --git a/inet.c b/inet.c
index dbfe748..a8d9a9d 100644
--- a/inet.c
+++ b/inet.c
@@ -151,6 +151,9 @@ static MyEventType NetGenFunc(EventGenRec *gen, MyEvent *event)
 	memcpy(data, netBuf, sizeof(data));
 	type = ntoh2(data[0]);
 	size = ntoh2(data[1]);
+	if (size >= sizeof(netBuf))
+		fatal("Received an invalid packet (too large), possibly an attempt\n"
+			  "  to exploit a vulnerability in versions before 0.52 !");
 	netBufGoal = size;
 	if (netBufSize < netBufGoal)
 		return E_none;