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-rw-r--r--sys/netinet/udp_usrreq.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/sys/netinet/udp_usrreq.c b/sys/netinet/udp_usrreq.c
index 7e13103..3ed0a02 100644
--- a/sys/netinet/udp_usrreq.c
+++ b/sys/netinet/udp_usrreq.c
@@ -31,7 +31,7 @@
* SUCH DAMAGE.
*
* @(#)udp_usrreq.c 8.4 (Berkeley) 1/21/94
- * $Id: udp_usrreq.c,v 1.11 1995/05/09 13:35:48 davidg Exp $
+ * $Id: udp_usrreq.c,v 1.12 1995/05/30 08:10:02 rgrimes Exp $
*/
#include <sys/param.h>
@@ -137,7 +137,7 @@ udp_input(m, iphlen)
*/
len = ntohs((u_short)uh->uh_ulen);
if (ip->ip_len != len) {
- if (len > ip->ip_len) {
+ if (len > ip->ip_len || len < sizeof(struct udphdr)) {
udpstat.udps_badlen++;
goto bad;
}
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