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Commit e32f7a70 authored by David S. Miller's avatar David S. Miller Committed by Greg Kroah-Hartman
Browse files

net: Zero terminate ifr_name in dev_ifname(). 




[ Upstream commit 63679112c536289826fec61c917621de95ba2ade ]

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

Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent 64133595

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)