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-rw-r--r--net/core/dev_ioctl.c1
1 files changed, 1 insertions, 0 deletions
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)