| Message ID | 20170719.133410.2182418694263884775.davem@davemloft.net |
|---|---|
| State | Accepted, archived |
| Delegated to: | David Miller |
| Headers | show |
diff --git a/net/core/dev_ioctl.c b/net/core/dev_ioctl.c index 7657ad6bc13d..06b147d7d9e2 100644 --- a/net/core/dev_ioctl.c +++ b/net/core/dev_ioctl.c @@ -28,6 +28,7 @@ static int dev_ifname(struct net *net, struct ifreq __user *arg) if (copy_from_user(&ifr, arg, sizeof(struct ifreq))) return -EFAULT; + ifr.ifr_name[IFNAMSIZ-1] = 0; error = netdev_get_name(net, ifr.ifr_name, ifr.ifr_ifindex); if (error)
The ifr.ifr_name is passed around and assumed to be NULL terminated. Signed-off-by: David S. Miller <davem@davemloft.net> --- net/core/dev_ioctl.c | 1 + 1 file changed, 1 insertion(+)