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-rw-r--r--net/8021q/vlan.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/net/8021q/vlan.c b/net/8021q/vlan.c
index f8903c1e1010..9accde339601 100644
--- a/net/8021q/vlan.c
+++ b/net/8021q/vlan.c
@@ -515,8 +515,8 @@ static int vlan_ioctl_handler(struct net *net, void __user *arg)
return -EFAULT;
/* Null terminate this sucker, just in case. */
- args.device1[23] = 0;
- args.u.device2[23] = 0;
+ args.device1[sizeof(args.device1) - 1] = 0;
+ args.u.device2[sizeof(args.u.device2) - 1] = 0;
rtnl_lock();