From 38c1241397d4842137e208a9bb1e3c901e533dd6 Mon Sep 17 00:00:00 2001 From: nectar Date: Mon, 9 Sep 2002 16:21:10 +0000 Subject: Check for FD_SET overrun. --- usr.sbin/traceroute6/traceroute6.c | 2 ++ 1 file changed, 2 insertions(+) (limited to 'usr.sbin/traceroute6') diff --git a/usr.sbin/traceroute6/traceroute6.c b/usr.sbin/traceroute6/traceroute6.c index f5f3fbe..37f639b 100644 --- a/usr.sbin/traceroute6/traceroute6.c +++ b/usr.sbin/traceroute6/traceroute6.c @@ -934,6 +934,8 @@ wait_for_reply(sock, mhdr) fdsn = howmany(sock + 1, NFDBITS) * sizeof(fd_mask); if ((fdsp = (fd_set *)malloc(fdsn)) == NULL) err(1, "malloc"); + if (sock >= FD_SETSIZE) + errx(1, "descriptor too big"); memset(fdsp, 0, fdsn); FD_SET(sock, fdsp); wait.tv_sec = waittime; wait.tv_usec = 0; -- cgit v1.1