diff options
| -rw-r--r-- | usr.sbin/tcpdump/print-ip.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/usr.sbin/tcpdump/print-ip.c b/usr.sbin/tcpdump/print-ip.c index b039cee3c00..254ace611fc 100644 --- a/usr.sbin/tcpdump/print-ip.c +++ b/usr.sbin/tcpdump/print-ip.c @@ -1,4 +1,4 @@ -/* $OpenBSD: print-ip.c,v 1.46 2016/10/30 04:03:29 jsg Exp $ */ +/* $OpenBSD: print-ip.c,v 1.47 2016/10/30 04:10:21 jsg Exp $ */ /* * Copyright (c) 1988, 1989, 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997 @@ -416,6 +416,8 @@ ip_print(const u_char *bp, u_int length) off = ntohs(ip->ip_off); if ((off & 0x1fff) == 0) { cp = (const u_char *)ip + hlen; + if (cp > snapend) + goto trunc; switch (ip->ip_p) { case IPPROTO_TCP: |