diff options
Diffstat (limited to 'sys/net/if_tun.c')
| -rw-r--r-- | sys/net/if_tun.c | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/sys/net/if_tun.c b/sys/net/if_tun.c index 33f97655d53..e08bb61a52d 100644 --- a/sys/net/if_tun.c +++ b/sys/net/if_tun.c @@ -1,4 +1,4 @@ -/* $OpenBSD: if_tun.c,v 1.181 2018/02/24 07:20:04 dlg Exp $ */ +/* $OpenBSD: if_tun.c,v 1.182 2018/11/12 06:35:37 dlg Exp $ */ /* $NetBSD: if_tun.c,v 1.24 1996/05/07 02:40:48 thorpej Exp $ */ /* @@ -193,6 +193,9 @@ tun_create(struct if_clone *ifc, int unit, int flags) struct tun_softc *tp; struct ifnet *ifp; + if (unit > minor(~0U)) + return (ENXIO); + tp = malloc(sizeof(*tp), M_DEVBUF, M_WAITOK|M_ZERO); tp->tun_unit = unit; tp->tun_flags = TUN_INITED|TUN_STAYUP; |