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-rw-r--r--source3/nmbd/nmbd_packets.c6
1 files changed, 6 insertions, 0 deletions
diff --git a/source3/nmbd/nmbd_packets.c b/source3/nmbd/nmbd_packets.c
index d49c8bab79..b78ab5ba7e 100644
--- a/source3/nmbd/nmbd_packets.c
+++ b/source3/nmbd/nmbd_packets.c
@@ -970,6 +970,12 @@ for id %hu\n", packet_type, nmb_namestr(&orig_nmb->question.question_name),
nmb->answers->ttl = ttl;
if (data && len) {
+ if (len < 0 || len > sizeof(nmb->answers->rdata)) {
+ DEBUG(5,("reply_netbios_packet: "
+ "invalid packet len (%d)\n",
+ len ));
+ return;
+ }
nmb->answers->rdlength = len;
memcpy(nmb->answers->rdata, data, len);
}