diff options
| author | David Greenman <dg@FreeBSD.org> | 1994-08-08 10:58:30 +0000 |
|---|---|---|
| committer | David Greenman <dg@FreeBSD.org> | 1994-08-08 10:58:30 +0000 |
| commit | 75ee03cb27a61610651d753796baf19fd0577341 (patch) | |
| tree | 34b41ef50831427eb1ca9d3e2c7306b551173bf0 | |
| parent | a7028af7f080f67ae0c8b23b2ce88ee37da57c4f (diff) | |
Notes
| -rw-r--r-- | sys/net/if.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/sys/net/if.c b/sys/net/if.c index 975bf780761d..5a60f6eafbf3 100644 --- a/sys/net/if.c +++ b/sys/net/if.c @@ -31,7 +31,7 @@ * SUCH DAMAGE. * * @(#)if.c 8.3 (Berkeley) 1/4/94 - * $Id: if.c,v 1.2 1994/08/02 07:46:05 davidg Exp $ + * $Id: if.c,v 1.3 1994/08/08 10:49:18 davidg Exp $ */ #include <sys/param.h> @@ -520,6 +520,8 @@ ifioctl(so, cmd, data, p) return (error); if (ifp->if_ioctl == NULL) return (EOPNOTSUPP); + if (ifr->ifr_mtu < 1 || ifr->ifr_mtu > 65535) + return (EINVAL); return ((*ifp->if_ioctl)(ifp, cmd, data)); case SIOCADDMULTI: |