net: Zero terminate ifr_name in dev_ifname().



The ifr.ifr_name is passed around and assumed to be NULL terminated.

Signed-off-by: David S. Miller <davem@davemloft.net>

parent 98de4e0e

net/core/dev_ioctl.c

+1 −0

Original line number	Diff line number	Diff line
		@@ -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)