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| author | nectar <nectar@FreeBSD.org> | 2002-09-09 16:21:10 +0000 |
|---|---|---|
| committer | nectar <nectar@FreeBSD.org> | 2002-09-09 16:21:10 +0000 |
| commit | 38c1241397d4842137e208a9bb1e3c901e533dd6 (patch) | |
| tree | 2e0c3ac4563e038e17b26e08812c73f894d24140 /usr.sbin | |
| parent | 89a48b22ec8c2358742b93336b8090b7185ff9ee (diff) | |
| download | FreeBSD-src-38c1241397d4842137e208a9bb1e3c901e533dd6.zip FreeBSD-src-38c1241397d4842137e208a9bb1e3c901e533dd6.tar.gz | |
Check for FD_SET overrun.
Diffstat (limited to 'usr.sbin')
| -rw-r--r-- | usr.sbin/traceroute6/traceroute6.c | 2 |
1 files changed, 2 insertions, 0 deletions
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; |
